From 0e622f67e0413ad12c2481d47353031ddb185620 Mon Sep 17 00:00:00 2001
From: Surabhi Vishnoi <svishnoi@codeaurora.org>
Date: Fri, 12 Oct 2018 11:23:39 +0530
Subject: [PATCH 001/124] ath10k: add support for WCN3990 firmware crash
 recovery

Whenever the WCN3990 firmware becomes unavailable,
the host driver receives a FW down indication, post
which all the direct hardware register access should
be avoided, in order to prevent improper behavior in
the host driver.

Set the crash_flush flag when the host driver receives
a FW_DOWN_IND via qmi, in order to stop the untimely
hardware register access. Also handle the case, where
we need to do core register only for the first FW_READY
indication, which is when we initialize the host driver.
All the subsequent FW_READY indication will be received
in subsystem recovery case and we only need to do the
restart work. The state of driver is maintained using
flags to distinguish between first and subsequent FW_READY
indication received.

Tested HW: WCN3990
Tested FW: WLAN.HL.2.0-01188-QCAHLSWMTPLZ-1

Signed-off-by: Surabhi Vishnoi <svishnoi@codeaurora.org>
Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/ath10k/core.c |  3 ++
 drivers/net/wireless/ath/ath10k/core.h |  1 +
 drivers/net/wireless/ath/ath10k/snoc.c | 39 ++++++++++++++++++++++++--
 drivers/net/wireless/ath/ath10k/snoc.h |  7 +++++
 4 files changed, 47 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index da607febfd82..0126e0ad45f4 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -2183,6 +2183,8 @@ static void ath10k_core_restart(struct work_struct *work)
 	if (ret)
 		ath10k_warn(ar, "failed to send firmware crash dump via devcoredump: %d",
 			    ret);
+
+	complete(&ar->driver_recovery);
 }
 
 static void ath10k_core_set_coverage_class_work(struct work_struct *work)
@@ -3046,6 +3048,7 @@ struct ath10k *ath10k_core_create(size_t priv_size, struct device *dev,
 	init_completion(&ar->scan.completed);
 	init_completion(&ar->scan.on_channel);
 	init_completion(&ar->target_suspend);
+	init_completion(&ar->driver_recovery);
 	init_completion(&ar->wow.wakeup_completed);
 
 	init_completion(&ar->install_key_done);
diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index 042418097cf9..009a4936a7ed 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -960,6 +960,7 @@ struct ath10k {
 	} hif;
 
 	struct completion target_suspend;
+	struct completion driver_recovery;
 
 	const struct ath10k_hw_regs *regs;
 	const struct ath10k_hw_ce_regs *hw_ce_regs;
diff --git a/drivers/net/wireless/ath/ath10k/snoc.c b/drivers/net/wireless/ath/ath10k/snoc.c
index 8d3d9bca410f..98724d04baef 100644
--- a/drivers/net/wireless/ath/ath10k/snoc.c
+++ b/drivers/net/wireless/ath/ath10k/snoc.c
@@ -918,7 +918,9 @@ static void ath10k_snoc_buffer_cleanup(struct ath10k *ar)
 
 static void ath10k_snoc_hif_stop(struct ath10k *ar)
 {
-	ath10k_snoc_irq_disable(ar);
+	if (!test_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags))
+		ath10k_snoc_irq_disable(ar);
+
 	napi_synchronize(&ar->napi);
 	napi_disable(&ar->napi);
 	ath10k_snoc_buffer_cleanup(ar);
@@ -927,10 +929,14 @@ static void ath10k_snoc_hif_stop(struct ath10k *ar)
 
 static int ath10k_snoc_hif_start(struct ath10k *ar)
 {
+	struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
+
 	napi_enable(&ar->napi);
 	ath10k_snoc_irq_enable(ar);
 	ath10k_snoc_rx_post(ar);
 
+	clear_bit(ATH10K_SNOC_FLAG_RECOVERY, &ar_snoc->flags);
+
 	ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot hif start\n");
 
 	return 0;
@@ -994,7 +1000,8 @@ static int ath10k_snoc_wlan_enable(struct ath10k *ar)
 
 static void ath10k_snoc_wlan_disable(struct ath10k *ar)
 {
-	ath10k_qmi_wlan_disable(ar);
+	if (!test_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags))
+		ath10k_qmi_wlan_disable(ar);
 }
 
 static void ath10k_snoc_hif_power_down(struct ath10k *ar)
@@ -1091,6 +1098,11 @@ static int ath10k_snoc_napi_poll(struct napi_struct *ctx, int budget)
 	struct ath10k *ar = container_of(ctx, struct ath10k, napi);
 	int done = 0;
 
+	if (test_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags)) {
+		napi_complete(ctx);
+		return done;
+	}
+
 	ath10k_ce_per_engine_service_any(ar);
 	done = ath10k_htt_txrx_compl_task(ar, budget);
 
@@ -1187,17 +1199,29 @@ int ath10k_snoc_fw_indication(struct ath10k *ar, u64 type)
 	struct ath10k_bus_params bus_params;
 	int ret;
 
+	if (test_bit(ATH10K_SNOC_FLAG_UNREGISTERING, &ar_snoc->flags))
+		return 0;
+
 	switch (type) {
 	case ATH10K_QMI_EVENT_FW_READY_IND:
+		if (test_bit(ATH10K_SNOC_FLAG_REGISTERED, &ar_snoc->flags)) {
+			queue_work(ar->workqueue, &ar->restart_work);
+			break;
+		}
+
 		bus_params.dev_type = ATH10K_DEV_TYPE_LL;
 		bus_params.chip_id = ar_snoc->target_info.soc_version;
 		ret = ath10k_core_register(ar, &bus_params);
 		if (ret) {
-			ath10k_err(ar, "failed to register driver core: %d\n",
+			ath10k_err(ar, "Failed to register driver core: %d\n",
 				   ret);
+			return ret;
 		}
+		set_bit(ATH10K_SNOC_FLAG_REGISTERED, &ar_snoc->flags);
 		break;
 	case ATH10K_QMI_EVENT_FW_DOWN_IND:
+		set_bit(ATH10K_SNOC_FLAG_RECOVERY, &ar_snoc->flags);
+		set_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags);
 		break;
 	default:
 		ath10k_err(ar, "invalid fw indication: %llx\n", type);
@@ -1628,8 +1652,17 @@ static int ath10k_snoc_probe(struct platform_device *pdev)
 static int ath10k_snoc_remove(struct platform_device *pdev)
 {
 	struct ath10k *ar = platform_get_drvdata(pdev);
+	struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
 
 	ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc remove\n");
+
+	reinit_completion(&ar->driver_recovery);
+
+	if (test_bit(ATH10K_SNOC_FLAG_RECOVERY, &ar_snoc->flags))
+		wait_for_completion_timeout(&ar->driver_recovery, 3 * HZ);
+
+	set_bit(ATH10K_SNOC_FLAG_UNREGISTERING, &ar_snoc->flags);
+
 	ath10k_core_unregister(ar);
 	ath10k_hw_power_off(ar);
 	ath10k_snoc_free_irq(ar);
diff --git a/drivers/net/wireless/ath/ath10k/snoc.h b/drivers/net/wireless/ath/ath10k/snoc.h
index e1d2d6675556..3a44e30696bc 100644
--- a/drivers/net/wireless/ath/ath10k/snoc.h
+++ b/drivers/net/wireless/ath/ath10k/snoc.h
@@ -70,6 +70,12 @@ struct ath10k_wcn3990_clk_info {
 	bool required;
 };
 
+enum ath10k_snoc_flags {
+	ATH10K_SNOC_FLAG_REGISTERED,
+	ATH10K_SNOC_FLAG_UNREGISTERING,
+	ATH10K_SNOC_FLAG_RECOVERY,
+};
+
 struct ath10k_snoc {
 	struct platform_device *dev;
 	struct ath10k *ar;
@@ -84,6 +90,7 @@ struct ath10k_snoc {
 	struct ath10k_wcn3990_vreg_info *vreg;
 	struct ath10k_wcn3990_clk_info *clk;
 	struct ath10k_qmi *qmi;
+	unsigned long int flags;
 };
 
 static inline struct ath10k_snoc *ath10k_snoc_priv(struct ath10k *ar)

From e88975ca37d10a486cf3a3c7199a669eb393c123 Mon Sep 17 00:00:00 2001
From: Anilkumar Kolli <akolli@codeaurora.org>
Date: Fri, 12 Oct 2018 11:33:28 +0530
Subject: [PATCH 002/124] ath10k: dump tx stats in rate table format

This patch adds the tx statistics pkts/bytes dump
in rate table format.

Dump format table is similar to http://mcsindex.com/

Tested on QCA9984/QCA4019/QCA988x
Firmware: 10.4-3.5.3-00057
	  10.2.4-1.0-00037
command:
cat /sys/kernel/debug/ieee80211/phy0/netdev\:wlan0/
    stations/<MACADDR>/tx_stats

Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/ath10k/core.h        |  1 +
 drivers/net/wireless/ath/ath10k/debugfs_sta.c | 12 +++++++++++-
 drivers/net/wireless/ath/ath10k/htt_rx.c      | 17 ++++++++++++++++-
 drivers/net/wireless/ath/ath10k/wmi.h         |  1 +
 4 files changed, 29 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index 009a4936a7ed..7d8d4e004e31 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -474,6 +474,7 @@ struct ath10k_htt_data_stats {
 	u64 bw[ATH10K_COUNTER_TYPE_MAX][ATH10K_BW_NUM];
 	u64 nss[ATH10K_COUNTER_TYPE_MAX][ATH10K_NSS_NUM];
 	u64 gi[ATH10K_COUNTER_TYPE_MAX][ATH10K_GI_NUM];
+	u64 rate_table[ATH10K_COUNTER_TYPE_MAX][ATH10K_RATE_TABLE_NUM];
 };
 
 struct ath10k_htt_tx_stats {
diff --git a/drivers/net/wireless/ath/ath10k/debugfs_sta.c b/drivers/net/wireless/ath/ath10k/debugfs_sta.c
index b09cdc699c69..0f3fd65a459e 100644
--- a/drivers/net/wireless/ath/ath10k/debugfs_sta.c
+++ b/drivers/net/wireless/ath/ath10k/debugfs_sta.c
@@ -665,7 +665,7 @@ static ssize_t ath10k_dbg_sta_dump_tx_stats(struct file *file,
 						       "retry", "ampdu"};
 	const char *str[ATH10K_COUNTER_TYPE_MAX] = {"bytes", "packets"};
 	int len = 0, i, j, k, retval = 0;
-	const int size = 2 * 4096;
+	const int size = 16 * 4096;
 	char *buf;
 
 	buf = kzalloc(size, GFP_KERNEL);
@@ -719,6 +719,16 @@ static ssize_t ath10k_dbg_sta_dump_tx_stats(struct file *file,
 				len += scnprintf(buf + len, size - len, "%llu ",
 						 stats->legacy[j][i]);
 			len += scnprintf(buf + len, size - len, "\n");
+			len += scnprintf(buf + len, size - len,
+					 " Rate table %s (1,2 ... Mbps)\n  ",
+					 str[j]);
+			for (i = 0; i < ATH10K_RATE_TABLE_NUM; i++) {
+				len += scnprintf(buf + len, size - len, "%llu ",
+						 stats->rate_table[j][i]);
+				if (!((i + 1) % 8))
+					len +=
+					scnprintf(buf + len, size - len, "\n  ");
+			}
 		}
 	}
 
diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index ffec98f7be50..984b0458d077 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -2650,7 +2650,7 @@ ath10k_accumulate_per_peer_tx_stats(struct ath10k *ar,
 {
 	struct rate_info *txrate = &arsta->txrate;
 	struct ath10k_htt_tx_stats *tx_stats;
-	int ht_idx, gi, mcs, bw, nss;
+	int idx, ht_idx, gi, mcs, bw, nss;
 
 	if (!arsta->tx_stats)
 		return;
@@ -2661,6 +2661,8 @@ ath10k_accumulate_per_peer_tx_stats(struct ath10k *ar,
 	mcs = txrate->mcs;
 	bw = txrate->bw;
 	nss = txrate->nss;
+	idx = mcs * 8 + 8 * 10 * nss;
+	idx += bw * 2 + gi;
 
 #define STATS_OP_FMT(name) tx_stats->stats[ATH10K_STATS_TYPE_##name]
 
@@ -2709,12 +2711,16 @@ ath10k_accumulate_per_peer_tx_stats(struct ath10k *ar,
 			pstats->succ_bytes + pstats->retry_bytes;
 		STATS_OP_FMT(AMPDU).gi[0][gi] +=
 			pstats->succ_bytes + pstats->retry_bytes;
+		STATS_OP_FMT(AMPDU).rate_table[0][idx] +=
+			pstats->succ_bytes + pstats->retry_bytes;
 		STATS_OP_FMT(AMPDU).bw[1][bw] +=
 			pstats->succ_pkts + pstats->retry_pkts;
 		STATS_OP_FMT(AMPDU).nss[1][nss] +=
 			pstats->succ_pkts + pstats->retry_pkts;
 		STATS_OP_FMT(AMPDU).gi[1][gi] +=
 			pstats->succ_pkts + pstats->retry_pkts;
+		STATS_OP_FMT(AMPDU).rate_table[1][idx] +=
+			pstats->succ_pkts + pstats->retry_pkts;
 	} else {
 		tx_stats->ack_fails +=
 				ATH10K_HW_BA_FAIL(pstats->flags);
@@ -2743,6 +2749,15 @@ ath10k_accumulate_per_peer_tx_stats(struct ath10k *ar,
 	STATS_OP_FMT(RETRY).bw[1][bw] += pstats->retry_pkts;
 	STATS_OP_FMT(RETRY).nss[1][nss] += pstats->retry_pkts;
 	STATS_OP_FMT(RETRY).gi[1][gi] += pstats->retry_pkts;
+
+	if (txrate->flags >= RATE_INFO_FLAGS_MCS) {
+		STATS_OP_FMT(SUCC).rate_table[0][idx] += pstats->succ_bytes;
+		STATS_OP_FMT(SUCC).rate_table[1][idx] += pstats->succ_pkts;
+		STATS_OP_FMT(FAIL).rate_table[0][idx] += pstats->failed_bytes;
+		STATS_OP_FMT(FAIL).rate_table[1][idx] += pstats->failed_pkts;
+		STATS_OP_FMT(RETRY).rate_table[0][idx] += pstats->retry_bytes;
+		STATS_OP_FMT(RETRY).rate_table[1][idx] += pstats->retry_pkts;
+	}
 }
 
 static void
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index f7badd079051..4971d610f567 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -4991,6 +4991,7 @@ enum wmi_rate_preamble {
 #define ATH10K_LEGACY_NUM	12
 #define ATH10K_GI_NUM		2
 #define ATH10K_HT_MCS_NUM	32
+#define ATH10K_RATE_TABLE_NUM	320
 
 /* Value to disable fixed rate setting */
 #define WMI_FIXED_RATE_NONE    (0xff)

From bbcfb343fa7f40a42d11bdac753dd62fdbf0840b Mon Sep 17 00:00:00 2001
From: Anilkumar Kolli <akolli@codeaurora.org>
Date: Fri, 12 Oct 2018 11:36:36 +0530
Subject: [PATCH 003/124] ath10k: add memory dump support for QCA4019

This patch adds firmware crash memory dump support for QCA4019.

Tested on:

QCA4019 firmware 10.4-3.2.1.1-00017

Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/ath10k/coredump.c | 103 ++++++++++++++++++++-
 1 file changed, 102 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/coredump.c b/drivers/net/wireless/ath/ath10k/coredump.c
index 4d28063052fe..1ccc73c6ef12 100644
--- a/drivers/net/wireless/ath/ath10k/coredump.c
+++ b/drivers/net/wireless/ath/ath10k/coredump.c
@@ -867,6 +867,101 @@ static const struct ath10k_mem_region qca9984_hw10_mem_regions[] = {
 	},
 };
 
+static const struct ath10k_mem_section ipq4019_soc_reg_range[] = {
+	{0x080000, 0x080004},
+	{0x080020, 0x080024},
+	{0x080028, 0x080050},
+	{0x0800d4, 0x0800ec},
+	{0x08010c, 0x080118},
+	{0x080284, 0x080290},
+	{0x0802a8, 0x0802b8},
+	{0x0802dc, 0x08030c},
+	{0x082000, 0x083fff}
+};
+
+static const struct ath10k_mem_region qca4019_hw10_mem_regions[] = {
+	{
+		.type = ATH10K_MEM_REGION_TYPE_DRAM,
+		.start = 0x400000,
+		.len = 0x68000,
+		.name = "DRAM",
+		.section_table = {
+			.sections = NULL,
+			.size = 0,
+		},
+	},
+	{
+		.type = ATH10K_MEM_REGION_TYPE_REG,
+		.start = 0xC0000,
+		.len = 0x40000,
+		.name = "SRAM",
+		.section_table = {
+			.sections = NULL,
+			.size = 0,
+		},
+	},
+	{
+		.type = ATH10K_MEM_REGION_TYPE_REG,
+		.start = 0x98000,
+		.len = 0x50000,
+		.name = "IRAM",
+		.section_table = {
+			.sections = NULL,
+			.size = 0,
+		},
+	},
+	{
+		.type = ATH10K_MEM_REGION_TYPE_IOREG,
+		.start = 0x30000,
+		.len = 0x7000,
+		.name = "APB REG 1",
+		.section_table = {
+			.sections = NULL,
+			.size = 0,
+		},
+	},
+	{
+		.type = ATH10K_MEM_REGION_TYPE_IOREG,
+		.start = 0x3f000,
+		.len = 0x3000,
+		.name = "APB REG 2",
+		.section_table = {
+			.sections = NULL,
+			.size = 0,
+		},
+	},
+	{
+		.type = ATH10K_MEM_REGION_TYPE_IOREG,
+		.start = 0x43000,
+		.len = 0x3000,
+		.name = "WIFI REG",
+		.section_table = {
+			.sections = NULL,
+			.size = 0,
+		},
+	},
+	{
+		.type = ATH10K_MEM_REGION_TYPE_IOREG,
+		.start = 0x4A000,
+		.len = 0x5000,
+		.name = "CE REG",
+		.section_table = {
+			.sections = NULL,
+			.size = 0,
+		},
+	},
+	{
+		.type = ATH10K_MEM_REGION_TYPE_REG,
+		.start = 0x080000,
+		.len = 0x083fff - 0x080000,
+		.name = "REG_TOTAL",
+		.section_table = {
+			.sections = ipq4019_soc_reg_range,
+			.size = ARRAY_SIZE(ipq4019_soc_reg_range),
+		},
+	},
+};
+
 static const struct ath10k_hw_mem_layout hw_mem_layouts[] = {
 	{
 		.hw_id = QCA6174_HW_1_0_VERSION,
@@ -945,7 +1040,13 @@ static const struct ath10k_hw_mem_layout hw_mem_layouts[] = {
 			.size = ARRAY_SIZE(qca99x0_hw20_mem_regions),
 		},
 	},
-
+	{
+		.hw_id = QCA4019_HW_1_0_DEV_VERSION,
+		.region_table = {
+			.regions = qca4019_hw10_mem_regions,
+			.size = ARRAY_SIZE(qca4019_hw10_mem_regions),
+		},
+	},
 };
 
 static u32 ath10k_coredump_get_ramdump_size(struct ath10k *ar)

From 5f09037a0cc2b70d2afdb216d236b52e2bee0a2b Mon Sep 17 00:00:00 2001
From: Anilkumar Kolli <akolli@codeaurora.org>
Date: Fri, 12 Oct 2018 11:36:37 +0530
Subject: [PATCH 004/124] ath10k: assign proper firmware crash dump structure

ar->target_version is same for QCA99x0, QCA4019, QCA9888
and QCA9984, this ended up in assigning the wrong hw_mem_layouts.
This patch adds additional hw_rev check to assign correct
hw_mem_layouts.

Tested on:
QCA4019 firmware 10.4-3.2.1.1-00017
QCA9984 firmware 10.4-3.5.3-00057

Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/ath10k/coredump.c | 15 ++++++++++++++-
 drivers/net/wireless/ath/ath10k/coredump.h |  1 +
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/coredump.c b/drivers/net/wireless/ath/ath10k/coredump.c
index 1ccc73c6ef12..eadae2f9206b 100644
--- a/drivers/net/wireless/ath/ath10k/coredump.c
+++ b/drivers/net/wireless/ath/ath10k/coredump.c
@@ -965,6 +965,7 @@ static const struct ath10k_mem_region qca4019_hw10_mem_regions[] = {
 static const struct ath10k_hw_mem_layout hw_mem_layouts[] = {
 	{
 		.hw_id = QCA6174_HW_1_0_VERSION,
+		.hw_rev = ATH10K_HW_QCA6174,
 		.region_table = {
 			.regions = qca6174_hw10_mem_regions,
 			.size = ARRAY_SIZE(qca6174_hw10_mem_regions),
@@ -972,6 +973,7 @@ static const struct ath10k_hw_mem_layout hw_mem_layouts[] = {
 	},
 	{
 		.hw_id = QCA6174_HW_1_1_VERSION,
+		.hw_rev = ATH10K_HW_QCA6174,
 		.region_table = {
 			.regions = qca6174_hw10_mem_regions,
 			.size = ARRAY_SIZE(qca6174_hw10_mem_regions),
@@ -979,6 +981,7 @@ static const struct ath10k_hw_mem_layout hw_mem_layouts[] = {
 	},
 	{
 		.hw_id = QCA6174_HW_1_3_VERSION,
+		.hw_rev = ATH10K_HW_QCA6174,
 		.region_table = {
 			.regions = qca6174_hw10_mem_regions,
 			.size = ARRAY_SIZE(qca6174_hw10_mem_regions),
@@ -986,6 +989,7 @@ static const struct ath10k_hw_mem_layout hw_mem_layouts[] = {
 	},
 	{
 		.hw_id = QCA6174_HW_2_1_VERSION,
+		.hw_rev = ATH10K_HW_QCA6174,
 		.region_table = {
 			.regions = qca6174_hw21_mem_regions,
 			.size = ARRAY_SIZE(qca6174_hw21_mem_regions),
@@ -993,6 +997,7 @@ static const struct ath10k_hw_mem_layout hw_mem_layouts[] = {
 	},
 	{
 		.hw_id = QCA6174_HW_3_0_VERSION,
+		.hw_rev = ATH10K_HW_QCA6174,
 		.region_table = {
 			.regions = qca6174_hw30_mem_regions,
 			.size = ARRAY_SIZE(qca6174_hw30_mem_regions),
@@ -1000,6 +1005,7 @@ static const struct ath10k_hw_mem_layout hw_mem_layouts[] = {
 	},
 	{
 		.hw_id = QCA6174_HW_3_2_VERSION,
+		.hw_rev = ATH10K_HW_QCA6174,
 		.region_table = {
 			.regions = qca6174_hw30_mem_regions,
 			.size = ARRAY_SIZE(qca6174_hw30_mem_regions),
@@ -1007,6 +1013,7 @@ static const struct ath10k_hw_mem_layout hw_mem_layouts[] = {
 	},
 	{
 		.hw_id = QCA9377_HW_1_1_DEV_VERSION,
+		.hw_rev = ATH10K_HW_QCA9377,
 		.region_table = {
 			.regions = qca6174_hw30_mem_regions,
 			.size = ARRAY_SIZE(qca6174_hw30_mem_regions),
@@ -1014,6 +1021,7 @@ static const struct ath10k_hw_mem_layout hw_mem_layouts[] = {
 	},
 	{
 		.hw_id = QCA988X_HW_2_0_VERSION,
+		.hw_rev = ATH10K_HW_QCA988X,
 		.region_table = {
 			.regions = qca988x_hw20_mem_regions,
 			.size = ARRAY_SIZE(qca988x_hw20_mem_regions),
@@ -1021,6 +1029,7 @@ static const struct ath10k_hw_mem_layout hw_mem_layouts[] = {
 	},
 	{
 		.hw_id = QCA9984_HW_1_0_DEV_VERSION,
+		.hw_rev = ATH10K_HW_QCA9984,
 		.region_table = {
 			.regions = qca9984_hw10_mem_regions,
 			.size = ARRAY_SIZE(qca9984_hw10_mem_regions),
@@ -1028,6 +1037,7 @@ static const struct ath10k_hw_mem_layout hw_mem_layouts[] = {
 	},
 	{
 		.hw_id = QCA9888_HW_2_0_DEV_VERSION,
+		.hw_rev = ATH10K_HW_QCA9888,
 		.region_table = {
 			.regions = qca9984_hw10_mem_regions,
 			.size = ARRAY_SIZE(qca9984_hw10_mem_regions),
@@ -1035,6 +1045,7 @@ static const struct ath10k_hw_mem_layout hw_mem_layouts[] = {
 	},
 	{
 		.hw_id = QCA99X0_HW_2_0_DEV_VERSION,
+		.hw_rev = ATH10K_HW_QCA99X0,
 		.region_table = {
 			.regions = qca99x0_hw20_mem_regions,
 			.size = ARRAY_SIZE(qca99x0_hw20_mem_regions),
@@ -1042,6 +1053,7 @@ static const struct ath10k_hw_mem_layout hw_mem_layouts[] = {
 	},
 	{
 		.hw_id = QCA4019_HW_1_0_DEV_VERSION,
+		.hw_rev = ATH10K_HW_QCA4019,
 		.region_table = {
 			.regions = qca4019_hw10_mem_regions,
 			.size = ARRAY_SIZE(qca4019_hw10_mem_regions),
@@ -1088,7 +1100,8 @@ const struct ath10k_hw_mem_layout *ath10k_coredump_get_mem_layout(struct ath10k
 		return NULL;
 
 	for (i = 0; i < ARRAY_SIZE(hw_mem_layouts); i++) {
-		if (ar->target_version == hw_mem_layouts[i].hw_id)
+		if (ar->target_version == hw_mem_layouts[i].hw_id &&
+		    ar->hw_rev == hw_mem_layouts[i].hw_rev)
 			return &hw_mem_layouts[i];
 	}
 
diff --git a/drivers/net/wireless/ath/ath10k/coredump.h b/drivers/net/wireless/ath/ath10k/coredump.h
index 3baaf9d2cbcd..5dac653e1649 100644
--- a/drivers/net/wireless/ath/ath10k/coredump.h
+++ b/drivers/net/wireless/ath/ath10k/coredump.h
@@ -165,6 +165,7 @@ struct ath10k_mem_region {
  */
 struct ath10k_hw_mem_layout {
 	u32 hw_id;
+	u32 hw_rev;
 
 	struct {
 		const struct ath10k_mem_region *regions;

From 4ab7fd955e471a71908d4970017c52b3ef6e47a2 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <weiyongjun1@huawei.com>
Date: Tue, 16 Oct 2018 02:35:16 +0000
Subject: [PATCH 005/124] ath10k: fix copy-paste error in
 ath10k_qmi_setup_msa_resources()

The return value from devm_memremap() is not checked correctly.
The test is done against a wrong variable. This patch fix it.

Fixes: ba94c753ccb4 ("ath10k: add QMI message handshake for wcn3990 client")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/ath10k/qmi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/qmi.c b/drivers/net/wireless/ath/ath10k/qmi.c
index 56cb1831dcdf..c2cbb415971e 100644
--- a/drivers/net/wireless/ath/ath10k/qmi.c
+++ b/drivers/net/wireless/ath/ath10k/qmi.c
@@ -931,7 +931,7 @@ static int ath10k_qmi_setup_msa_resources(struct ath10k_qmi *qmi, u32 msa_size)
 		qmi->msa_mem_size = resource_size(&r);
 		qmi->msa_va = devm_memremap(dev, qmi->msa_pa, qmi->msa_mem_size,
 					    MEMREMAP_WT);
-		if (!qmi->msa_pa) {
+		if (!qmi->msa_va) {
 			dev_err(dev, "failed to map memory region: %pa\n", &r.start);
 			return -EBUSY;
 		}

From 13104929d2ec32aec0552007d55b9e15bc07176b Mon Sep 17 00:00:00 2001
From: Rakesh Pillai <pillair@codeaurora.org>
Date: Wed, 17 Oct 2018 16:50:03 +0530
Subject: [PATCH 006/124] ath10k: fill the channel survey results for WCN3990
 correctly

The host driver currently expects the channel info event to be
received in pairs for all the channels, i.e. the first
chan_info event for a particular channel will not have the
COMPLETE flag set and the second chan_info event for the
same channel will have the COMPLETE flag set.

The HL2.0 firmware sends only one channel info event per channel
which is scanned without the COMPLETE flag set. After sending the
chan_info_event for all the channels, the HL2.0 firmware sends a
chan_info_event with COMPLETE flag set to indicate the completion
of the channel info event.

The firmware does not indicate this behavior with any service bitmap
and hence a new firmware feature flag is used to handle the modified
parsing of the channel info events, in the host driver, for the
firmware which sends single channel info event per scanned channel.

Tested HW: WCN3990
Tested FW: WLAN.HL.2.0-01188-QCAHLSWMTPLZ-1

Co-developed-by: Surabhi Vishnoi <svishnoi@codeaurora.org>
Signed-off-by: Surabhi Vishnoi <svishnoi@codeaurora.org>
Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/ath10k/core.c    |   1 +
 drivers/net/wireless/ath/ath10k/core.h    |   3 +
 drivers/net/wireless/ath/ath10k/wmi-tlv.c |   3 +
 drivers/net/wireless/ath/ath10k/wmi-tlv.h |  10 ++
 drivers/net/wireless/ath/ath10k/wmi.c     | 136 +++++++++++++++-------
 drivers/net/wireless/ath/ath10k/wmi.h     |  12 ++
 6 files changed, 124 insertions(+), 41 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 0126e0ad45f4..9d0b3515989a 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -594,6 +594,7 @@ static const char *const ath10k_core_fw_feature_str[] = {
 	[ATH10K_FW_FEATURE_NO_PS] = "no-ps",
 	[ATH10K_FW_FEATURE_MGMT_TX_BY_REF] = "mgmt-tx-by-reference",
 	[ATH10K_FW_FEATURE_NON_BMI] = "non-bmi",
+	[ATH10K_FW_FEATURE_SINGLE_CHAN_INFO_PER_CHANNEL] = "single-chan-info-per-channel",
 };
 
 static unsigned int ath10k_core_get_fw_feature_str(char *buf,
diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index 7d8d4e004e31..d14a4f928218 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -761,6 +761,9 @@ enum ath10k_fw_features {
 	/* Firmware load is done externally, not by bmi */
 	ATH10K_FW_FEATURE_NON_BMI = 19,
 
+	/* Firmware sends only one chan_info event per channel */
+	ATH10K_FW_FEATURE_SINGLE_CHAN_INFO_PER_CHANNEL = 20,
+
 	/* keep last */
 	ATH10K_FW_FEATURE_COUNT,
 };
diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.c b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
index bab8b2527fb8..07c4a33d56b5 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-tlv.c
+++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
@@ -762,6 +762,9 @@ static int ath10k_wmi_tlv_op_pull_ch_info_ev(struct ath10k *ar,
 	arg->noise_floor = ev->noise_floor;
 	arg->rx_clear_count = ev->rx_clear_count;
 	arg->cycle_count = ev->cycle_count;
+	if (test_bit(ATH10K_FW_FEATURE_SINGLE_CHAN_INFO_PER_CHANNEL,
+		     ar->running_fw->fw_file.fw_features))
+		arg->mac_clk_mhz = ev->mac_clk_mhz;
 
 	kfree(tb);
 	return 0;
diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.h b/drivers/net/wireless/ath/ath10k/wmi-tlv.h
index 92c25f51bf86..bf8a4320c39c 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-tlv.h
+++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.h
@@ -1579,6 +1579,16 @@ struct ath10k_mgmt_tx_pkt_addr {
 	dma_addr_t paddr;
 };
 
+struct chan_info_params {
+	u32 err_code;
+	u32 freq;
+	u32 cmd_flags;
+	u32 noise_floor;
+	u32 rx_clear_count;
+	u32 cycle_count;
+	u32 mac_clk_mhz;
+};
+
 struct wmi_tlv_mgmt_tx_compl_ev {
 	__le32 desc_id;
 	__le32 status;
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 25e8fa789e8d..659513bf4ddc 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -2554,12 +2554,89 @@ static int ath10k_wmi_10_4_op_pull_ch_info_ev(struct ath10k *ar,
 	return 0;
 }
 
+/*
+ * Handle the channel info event for firmware which only sends one
+ * chan_info event per scanned channel.
+ */
+static void ath10k_wmi_event_chan_info_unpaired(struct ath10k *ar,
+						struct chan_info_params *params)
+{
+	struct survey_info *survey;
+	int idx;
+
+	if (params->cmd_flags & WMI_CHAN_INFO_FLAG_COMPLETE) {
+		ath10k_dbg(ar, ATH10K_DBG_WMI, "chan info report completed\n");
+		return;
+	}
+
+	idx = freq_to_idx(ar, params->freq);
+	if (idx >= ARRAY_SIZE(ar->survey)) {
+		ath10k_warn(ar, "chan info: invalid frequency %d (idx %d out of bounds)\n",
+			    params->freq, idx);
+		return;
+	}
+
+	survey = &ar->survey[idx];
+
+	if (!params->mac_clk_mhz || !survey)
+		return;
+
+	memset(survey, 0, sizeof(*survey));
+
+	survey->noise = params->noise_floor;
+	survey->time = (params->cycle_count / params->mac_clk_mhz) / 1000;
+	survey->time_busy = (params->rx_clear_count / params->mac_clk_mhz) / 1000;
+	survey->filled |= SURVEY_INFO_NOISE_DBM | SURVEY_INFO_TIME |
+			  SURVEY_INFO_TIME_BUSY;
+}
+
+/*
+ * Handle the channel info event for firmware which sends chan_info
+ * event in pairs(start and stop events) for every scanned channel.
+ */
+static void ath10k_wmi_event_chan_info_paired(struct ath10k *ar,
+					      struct chan_info_params *params)
+{
+	struct survey_info *survey;
+	int idx;
+
+	idx = freq_to_idx(ar, params->freq);
+	if (idx >= ARRAY_SIZE(ar->survey)) {
+		ath10k_warn(ar, "chan info: invalid frequency %d (idx %d out of bounds)\n",
+			    params->freq, idx);
+		return;
+	}
+
+	if (params->cmd_flags & WMI_CHAN_INFO_FLAG_COMPLETE) {
+		if (ar->ch_info_can_report_survey) {
+			survey = &ar->survey[idx];
+			survey->noise = params->noise_floor;
+			survey->filled = SURVEY_INFO_NOISE_DBM;
+
+			ath10k_hw_fill_survey_time(ar,
+						   survey,
+						   params->cycle_count,
+						   params->rx_clear_count,
+						   ar->survey_last_cycle_count,
+						   ar->survey_last_rx_clear_count);
+		}
+
+		ar->ch_info_can_report_survey = false;
+	} else {
+		ar->ch_info_can_report_survey = true;
+	}
+
+	if (!(params->cmd_flags & WMI_CHAN_INFO_FLAG_PRE_COMPLETE)) {
+		ar->survey_last_rx_clear_count = params->rx_clear_count;
+		ar->survey_last_cycle_count = params->cycle_count;
+	}
+}
+
 void ath10k_wmi_event_chan_info(struct ath10k *ar, struct sk_buff *skb)
 {
+	struct chan_info_params ch_info_param;
 	struct wmi_ch_info_ev_arg arg = {};
-	struct survey_info *survey;
-	u32 err_code, freq, cmd_flags, noise_floor, rx_clear_count, cycle_count;
-	int idx, ret;
+	int ret;
 
 	ret = ath10k_wmi_pull_ch_info(ar, skb, &arg);
 	if (ret) {
@@ -2567,17 +2644,19 @@ void ath10k_wmi_event_chan_info(struct ath10k *ar, struct sk_buff *skb)
 		return;
 	}
 
-	err_code = __le32_to_cpu(arg.err_code);
-	freq = __le32_to_cpu(arg.freq);
-	cmd_flags = __le32_to_cpu(arg.cmd_flags);
-	noise_floor = __le32_to_cpu(arg.noise_floor);
-	rx_clear_count = __le32_to_cpu(arg.rx_clear_count);
-	cycle_count = __le32_to_cpu(arg.cycle_count);
+	ch_info_param.err_code = __le32_to_cpu(arg.err_code);
+	ch_info_param.freq = __le32_to_cpu(arg.freq);
+	ch_info_param.cmd_flags = __le32_to_cpu(arg.cmd_flags);
+	ch_info_param.noise_floor = __le32_to_cpu(arg.noise_floor);
+	ch_info_param.rx_clear_count = __le32_to_cpu(arg.rx_clear_count);
+	ch_info_param.cycle_count = __le32_to_cpu(arg.cycle_count);
+	ch_info_param.mac_clk_mhz = __le32_to_cpu(arg.mac_clk_mhz);
 
 	ath10k_dbg(ar, ATH10K_DBG_WMI,
 		   "chan info err_code %d freq %d cmd_flags %d noise_floor %d rx_clear_count %d cycle_count %d\n",
-		   err_code, freq, cmd_flags, noise_floor, rx_clear_count,
-		   cycle_count);
+		   ch_info_param.err_code, ch_info_param.freq, ch_info_param.cmd_flags,
+		   ch_info_param.noise_floor, ch_info_param.rx_clear_count,
+		   ch_info_param.cycle_count);
 
 	spin_lock_bh(&ar->data_lock);
 
@@ -2591,36 +2670,11 @@ void ath10k_wmi_event_chan_info(struct ath10k *ar, struct sk_buff *skb)
 		break;
 	}
 
-	idx = freq_to_idx(ar, freq);
-	if (idx >= ARRAY_SIZE(ar->survey)) {
-		ath10k_warn(ar, "chan info: invalid frequency %d (idx %d out of bounds)\n",
-			    freq, idx);
-		goto exit;
-	}
-
-	if (cmd_flags & WMI_CHAN_INFO_FLAG_COMPLETE) {
-		if (ar->ch_info_can_report_survey) {
-			survey = &ar->survey[idx];
-			survey->noise = noise_floor;
-			survey->filled = SURVEY_INFO_NOISE_DBM;
-
-			ath10k_hw_fill_survey_time(ar,
-						   survey,
-						   cycle_count,
-						   rx_clear_count,
-						   ar->survey_last_cycle_count,
-						   ar->survey_last_rx_clear_count);
-		}
-
-		ar->ch_info_can_report_survey = false;
-	} else {
-		ar->ch_info_can_report_survey = true;
-	}
-
-	if (!(cmd_flags & WMI_CHAN_INFO_FLAG_PRE_COMPLETE)) {
-		ar->survey_last_rx_clear_count = rx_clear_count;
-		ar->survey_last_cycle_count = cycle_count;
-	}
+	if (test_bit(ATH10K_FW_FEATURE_SINGLE_CHAN_INFO_PER_CHANNEL,
+		     ar->running_fw->fw_file.fw_features))
+		ath10k_wmi_event_chan_info_unpaired(ar, &ch_info_param);
+	else
+		ath10k_wmi_event_chan_info_paired(ar, &ch_info_param);
 
 exit:
 	spin_unlock_bh(&ar->data_lock);
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index 4971d610f567..58e33ab9e0e9 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -6442,6 +6442,14 @@ struct wmi_chan_info_event {
 	__le32 noise_floor;
 	__le32 rx_clear_count;
 	__le32 cycle_count;
+	__le32 chan_tx_pwr_range;
+	__le32 chan_tx_pwr_tp;
+	__le32 rx_frame_count;
+	__le32 my_bss_rx_cycle_count;
+	__le32 rx_11b_mode_data_duration;
+	__le32 tx_frame_cnt;
+	__le32 mac_clk_mhz;
+
 } __packed;
 
 struct wmi_10_4_chan_info_event {
@@ -6670,6 +6678,10 @@ struct wmi_ch_info_ev_arg {
 	__le32 chan_tx_pwr_range;
 	__le32 chan_tx_pwr_tp;
 	__le32 rx_frame_count;
+	__le32 my_bss_rx_cycle_count;
+	__le32 rx_11b_mode_data_duration;
+	__le32 tx_frame_cnt;
+	__le32 mac_clk_mhz;
 };
 
 /* From 10.4 firmware, not sure all have the same values. */

From 539b44e70c5b4ad82d2c0c97a4dfb37523d891f6 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 18 Oct 2018 10:36:19 +0300
Subject: [PATCH 007/124] ath10k: fixup extended per sta tx statistics

I had a couple concerns with this code.  First, we definitely need to
set the error code if the kzalloc() fails.  Secondly, I was worried that
if we didn't set "arsta->tx_stats" to NULL after freeing it, then it
looks to me like it might lead to a use after free.  I can't test that,
but it's harmless to set it to NULL so I did.

Fixes: a904417fc876 ("ath10k: add extended per sta tx statistics support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/ath10k/mac.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index a1c2801ded10..2b8c8bf80b0d 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -6296,8 +6296,10 @@ static int ath10k_sta_state(struct ieee80211_hw *hw,
 		if (ath10k_debug_is_extd_tx_stats_enabled(ar)) {
 			arsta->tx_stats = kzalloc(sizeof(*arsta->tx_stats),
 						  GFP_KERNEL);
-			if (!arsta->tx_stats)
+			if (!arsta->tx_stats) {
+				ret = -ENOMEM;
 				goto exit;
+			}
 		}
 
 		num_tdls_stations = ath10k_mac_tdls_vif_stations_count(hw, vif);
@@ -6385,8 +6387,10 @@ static int ath10k_sta_state(struct ieee80211_hw *hw,
 			   "mac vdev %d peer delete %pM sta %pK (sta gone)\n",
 			   arvif->vdev_id, sta->addr, sta);
 
-		if (ath10k_debug_is_extd_tx_stats_enabled(ar))
+		if (ath10k_debug_is_extd_tx_stats_enabled(ar)) {
 			kfree(arsta->tx_stats);
+			arsta->tx_stats = NULL;
+		}
 
 		if (sta->tdls) {
 			ret = ath10k_mac_tdls_peer_update(ar, arvif->vdev_id,

From eb9bd8b963d61125b0e336f1f6c9487051a812c3 Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.king@canonical.com>
Date: Thu, 18 Oct 2018 22:51:04 +0100
Subject: [PATCH 008/124] ath10k: fix some spelling mistakes

Trivial fix to some spelling mistakes in ath10k_err and ath10k_dbg
messages:
"capablity" -> "capability"
"registed" -> "registered"

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/ath10k/qmi.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/qmi.c b/drivers/net/wireless/ath/ath10k/qmi.c
index c2cbb415971e..f0429bee35c2 100644
--- a/drivers/net/wireless/ath/ath10k/qmi.c
+++ b/drivers/net/wireless/ath/ath10k/qmi.c
@@ -543,7 +543,7 @@ static int ath10k_qmi_cap_send_sync_msg(struct ath10k_qmi *qmi)
 		goto out;
 
 	if (resp->resp.result != QMI_RESULT_SUCCESS_V01) {
-		ath10k_err(ar, "capablity req rejected: %d\n", resp->resp.error);
+		ath10k_err(ar, "capability req rejected: %d\n", resp->resp.error);
 		ret = -EINVAL;
 		goto out;
 	}
@@ -623,7 +623,7 @@ static int ath10k_qmi_host_cap_send_sync(struct ath10k_qmi *qmi)
 		goto out;
 	}
 
-	ath10k_dbg(ar, ATH10K_DBG_QMI, "qmi host capablity request completed\n");
+	ath10k_dbg(ar, ATH10K_DBG_QMI, "qmi host capability request completed\n");
 	return 0;
 
 out:
@@ -657,7 +657,7 @@ ath10k_qmi_ind_register_send_sync_msg(struct ath10k_qmi *qmi)
 			       wlfw_ind_register_req_msg_v01_ei, &req);
 	if (ret < 0) {
 		qmi_txn_cancel(&txn);
-		ath10k_err(ar, "failed to send indication registed request: %d\n", ret);
+		ath10k_err(ar, "failed to send indication registered request: %d\n", ret);
 		goto out;
 	}
 

From 3468404f78e16208ca534cca9bb8e80425eb70ce Mon Sep 17 00:00:00 2001
From: YueHaibing <yuehaibing@huawei.com>
Date: Fri, 19 Oct 2018 12:20:26 +0000
Subject: [PATCH 009/124] ath10k: remove set but not used variable 'tlv_len'

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/wireless/ath/ath10k/wmi-tlv.c: In function 'ath10k_wmi_tlv_op_gen_config_pno_start':
drivers/net/wireless/ath/ath10k/wmi-tlv.c:3455:6: warning:
 variable 'tlv_len' set but not used [-Wunused-but-set-variable]

It never used since inroduction in commit
ce834e280f2f ("ath10k: support NET_DETECT WoWLAN feature")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/ath10k/wmi-tlv.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.c b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
index 07c4a33d56b5..ad4114a88170 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-tlv.c
+++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
@@ -3455,7 +3455,6 @@ ath10k_wmi_tlv_op_gen_config_pno_start(struct ath10k *ar,
 	struct wmi_tlv *tlv;
 	struct sk_buff *skb;
 	__le32 *channel_list;
-	u16 tlv_len;
 	size_t len;
 	void *ptr;
 	u32 i;
@@ -3513,8 +3512,6 @@ ath10k_wmi_tlv_op_gen_config_pno_start(struct ath10k *ar,
 	/* nlo_configured_parameters(nlo_list) */
 	cmd->no_of_ssids = __cpu_to_le32(min_t(u8, pno->uc_networks_count,
 					       WMI_NLO_MAX_SSIDS));
-	tlv_len = __le32_to_cpu(cmd->no_of_ssids) *
-		sizeof(struct nlo_configured_parameters);
 
 	tlv = ptr;
 	tlv->tag = __cpu_to_le16(WMI_TLV_TAG_ARRAY_STRUCT);

From 604e986700721a4371546d0a356e00bc5ba46806 Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Mon, 22 Oct 2018 22:37:38 +0200
Subject: [PATCH 010/124] ath9k: ar5008_phy: mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 1056532 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/ath9k/ar5008_phy.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath9k/ar5008_phy.c b/drivers/net/wireless/ath/ath9k/ar5008_phy.c
index 11d6f975c87d..dae95402eb3a 100644
--- a/drivers/net/wireless/ath/ath9k/ar5008_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar5008_phy.c
@@ -586,7 +586,7 @@ static void ar5008_hw_init_chain_masks(struct ath_hw *ah)
 			REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, 0x7);
 			break;
 		}
-		/* else: fall through */
+		/* fall through */
 	case 0x1:
 	case 0x2:
 	case 0x7:

From f2a881055094444da9f7c5a9609b261bba8634a9 Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Mon, 22 Oct 2018 22:38:11 +0200
Subject: [PATCH 011/124] ath9k: ar9002_phy: mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 1056532 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/ath9k/ar9002_phy.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath9k/ar9002_phy.c b/drivers/net/wireless/ath/ath9k/ar9002_phy.c
index 713291881208..6f32b8d2ec7f 100644
--- a/drivers/net/wireless/ath/ath9k/ar9002_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9002_phy.c
@@ -119,7 +119,7 @@ static int ar9002_hw_set_channel(struct ath_hw *ah, struct ath9k_channel *chan)
 				aModeRefSel = 2;
 			if (aModeRefSel)
 				break;
-			/* else: fall through */
+			/* fall through */
 		case 1:
 		default:
 			aModeRefSel = 0;

From bf74fd75137dd1fa9b95b82c49866e6608fb4990 Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Mon, 22 Oct 2018 22:39:15 +0200
Subject: [PATCH 012/124] ath9k: hw: mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 1056532 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/ath9k/hw.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index bb319f22761f..8581d917635a 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -2279,6 +2279,7 @@ void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period)
 	case NL80211_IFTYPE_ADHOC:
 		REG_SET_BIT(ah, AR_TXCFG,
 			    AR_TXCFG_ADHOC_BEACON_ATIM_TX_POLICY);
+		/* fall through */
 	case NL80211_IFTYPE_MESH_POINT:
 	case NL80211_IFTYPE_AP:
 		REG_WRITE(ah, AR_NEXT_TBTT_TIMER, next_beacon);

From 53d76f1687ba7e4e4e1daa097d90ce6bf2f540d4 Mon Sep 17 00:00:00 2001
From: zhong jiang <zhongjiang@huawei.com>
Date: Tue, 23 Oct 2018 11:27:14 +0800
Subject: [PATCH 013/124] ath9k: remove set but not used variable 'new_flags'

new_flags is not used after setting its value. It is safe to remove
the unused variable.

Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/ath9k/ar9003_mci.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mci.c b/drivers/net/wireless/ath/ath9k/ar9003_mci.c
index 0fe9c8378249..9899661f9a60 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_mci.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_mci.c
@@ -1055,17 +1055,15 @@ void ar9003_mci_stop_bt(struct ath_hw *ah, bool save_fullsleep)
 static void ar9003_mci_send_2g5g_status(struct ath_hw *ah, bool wait_done)
 {
 	struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
-	u32 new_flags, to_set, to_clear;
+	u32 to_set, to_clear;
 
 	if (!mci->update_2g5g || (mci->bt_state == MCI_BT_SLEEP))
 		return;
 
 	if (mci->is_2g) {
-		new_flags = MCI_2G_FLAGS;
 		to_clear = MCI_2G_FLAGS_CLEAR_MASK;
 		to_set = MCI_2G_FLAGS_SET_MASK;
 	} else {
-		new_flags = MCI_5G_FLAGS;
 		to_clear = MCI_5G_FLAGS_CLEAR_MASK;
 		to_set = MCI_5G_FLAGS_SET_MASK;
 	}

From 6d9e1ecd15373c4fff03e2066581e2374c0e1e61 Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Mon, 22 Oct 2018 22:37:31 +0200
Subject: [PATCH 014/124] ath6kl: Mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 201383 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Steve deRosier <derosier@cal-sierra.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/ath6kl/main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/ath/ath6kl/main.c b/drivers/net/wireless/ath/ath6kl/main.c
index cb59016c723b..5e7ea838a921 100644
--- a/drivers/net/wireless/ath/ath6kl/main.c
+++ b/drivers/net/wireless/ath/ath6kl/main.c
@@ -389,6 +389,7 @@ void ath6kl_connect_ap_mode_bss(struct ath6kl_vif *vif, u16 channel)
 		if (!ik->valid || ik->key_type != WAPI_CRYPT)
 			break;
 		/* for WAPI, we need to set the delayed group key, continue: */
+		/* fall through */
 	case WPA_PSK_AUTH:
 	case WPA2_PSK_AUTH:
 	case (WPA_PSK_AUTH | WPA2_PSK_AUTH):

From 003161445bc8ec38882e571916b0c2c495277297 Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Mon, 22 Oct 2018 22:39:59 +0200
Subject: [PATCH 015/124] carl9170: rx: mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 1056534 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/carl9170/rx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/ath/carl9170/rx.c b/drivers/net/wireless/ath/carl9170/rx.c
index 705063259c8f..f7c2f19e81c1 100644
--- a/drivers/net/wireless/ath/carl9170/rx.c
+++ b/drivers/net/wireless/ath/carl9170/rx.c
@@ -766,6 +766,7 @@ static void carl9170_rx_untie_data(struct ar9170 *ar, u8 *buf, int len)
 
 			goto drop;
 		}
+		/* fall through */
 
 	case AR9170_RX_STATUS_MPDU_MIDDLE:
 		/*  These are just data + mac status */

From f458f9f4369086e86f0cdedf9aae86a525da0736 Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Mon, 22 Oct 2018 22:40:24 +0200
Subject: [PATCH 016/124] carl9170: tx: mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/carl9170/tx.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/ath/carl9170/tx.c b/drivers/net/wireless/ath/carl9170/tx.c
index 8c75651ede6c..2407931440ed 100644
--- a/drivers/net/wireless/ath/carl9170/tx.c
+++ b/drivers/net/wireless/ath/carl9170/tx.c
@@ -830,10 +830,12 @@ static bool carl9170_tx_rts_check(struct ar9170 *ar,
 	case CARL9170_ERP_AUTO:
 		if (ampdu)
 			break;
+		/* fall through */
 
 	case CARL9170_ERP_MAC80211:
 		if (!(rate->flags & IEEE80211_TX_RC_USE_RTS_CTS))
 			break;
+		/* fall through */
 
 	case CARL9170_ERP_RTS:
 		if (likely(!multi))
@@ -854,6 +856,7 @@ static bool carl9170_tx_cts_check(struct ar9170 *ar,
 	case CARL9170_ERP_MAC80211:
 		if (!(rate->flags & IEEE80211_TX_RC_USE_CTS_PROTECT))
 			break;
+		/* fall through */
 
 	case CARL9170_ERP_CTS:
 		return true;

From c8cb09644c6cc78aaccfca54ad76462e44486cd0 Mon Sep 17 00:00:00 2001
From: Yangtao Li <tiny.windzz@gmail.com>
Date: Thu, 1 Nov 2018 11:29:32 -0400
Subject: [PATCH 017/124] ath10k: fix some typo

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/ath10k/wow.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/wow.c b/drivers/net/wireless/ath/ath10k/wow.c
index 51b26b305885..36d4245c308e 100644
--- a/drivers/net/wireless/ath/ath10k/wow.c
+++ b/drivers/net/wireless/ath/ath10k/wow.c
@@ -135,7 +135,7 @@ static void ath10k_wow_convert_8023_to_80211
 	       &old_hdr_mask->h_proto,
 	       sizeof(old_hdr_mask->h_proto));
 
-	/* Caculate new pkt_offset */
+	/* Calculate new pkt_offset */
 	if (old->pkt_offset < ETH_ALEN)
 		new->pkt_offset = old->pkt_offset +
 			offsetof(struct ieee80211_hdr_3addr, addr1);
@@ -146,7 +146,7 @@ static void ath10k_wow_convert_8023_to_80211
 	else
 		new->pkt_offset = old->pkt_offset + hdr_len + rfc_len - ETH_HLEN;
 
-	/* Caculate new hdr end offset */
+	/* Calculate new hdr end offset */
 	if (total_len > ETH_HLEN)
 		hdr_80211_end_offset = hdr_len + rfc_len;
 	else if (total_len > offsetof(struct ethhdr, h_proto))

From a078c4cf0197c71a829ea927d1287e6b26a52c92 Mon Sep 17 00:00:00 2001
From: Hamad Kadmany <hkadmany@codeaurora.org>
Date: Wed, 31 Oct 2018 10:52:09 +0200
Subject: [PATCH 018/124] wil6210: remove fake support for RXHASH

Setting the same fake hash to all skbs prevents
distributing different flows to different CPU cores.

Signed-off-by: Hamad Kadmany <hkadmany@codeaurora.org>
Signed-off-by: Lior David <liord@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/wil6210/netdev.c | 3 +--
 drivers/net/wireless/ath/wil6210/txrx.c   | 8 --------
 2 files changed, 1 insertion(+), 10 deletions(-)

diff --git a/drivers/net/wireless/ath/wil6210/netdev.c b/drivers/net/wireless/ath/wil6210/netdev.c
index 7a78a06bd356..64fa1a295510 100644
--- a/drivers/net/wireless/ath/wil6210/netdev.c
+++ b/drivers/net/wireless/ath/wil6210/netdev.c
@@ -345,8 +345,7 @@ wil_vif_alloc(struct wil6210_priv *wil, const char *name,
 	ndev->ieee80211_ptr = wdev;
 	ndev->hw_features = NETIF_F_HW_CSUM | NETIF_F_RXCSUM |
 			    NETIF_F_SG | NETIF_F_GRO |
-			    NETIF_F_TSO | NETIF_F_TSO6 |
-			    NETIF_F_RXHASH;
+			    NETIF_F_TSO | NETIF_F_TSO6;
 
 	ndev->features |= ndev->hw_features;
 	SET_NETDEV_DEV(ndev, wiphy_dev(wdev->wiphy));
diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c
index cc5f263cc965..70eceec9945e 100644
--- a/drivers/net/wireless/ath/wil6210/txrx.c
+++ b/drivers/net/wireless/ath/wil6210/txrx.c
@@ -743,14 +743,6 @@ void wil_netif_rx_any(struct sk_buff *skb, struct net_device *ndev)
 
 	stats = &wil->sta[cid].stats;
 
-	if (ndev->features & NETIF_F_RXHASH)
-		/* fake L4 to ensure it won't be re-calculated later
-		 * set hash to any non-zero value to activate rps
-		 * mechanism, core will be chosen according
-		 * to user-level rps configuration.
-		 */
-		skb_set_hash(skb, 1, PKT_HASH_TYPE_L4);
-
 	skb_orphan(skb);
 
 	if (security && (wil->txrx_ops.rx_crypto_check(wil, skb) != 0)) {

From d083b2e2b7db5cca1791643d036e6597af27f49b Mon Sep 17 00:00:00 2001
From: Alexei Avshalom Lazar <ailizaro@codeaurora.org>
Date: Wed, 31 Oct 2018 10:52:10 +0200
Subject: [PATCH 019/124] wil6210: fix reset flow for Talyn-mb

With current reset flow, Talyn sometimes get stuck causing PCIe
enumeration to fail. Fix this by removing some reset flow operations
that are not relevant for Talyn.
Setting bit 15 in RGF_HP_CTRL is WBE specific and is not in use for
all wil6210 devices.
For Sparrow, BIT_HPAL_PERST_FROM_PAD and BIT_CAR_PERST_RST were set
as a WA an HW issue.

Signed-off-by: Alexei Avshalom Lazar <ailizaro@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/wil6210/main.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/ath/wil6210/main.c b/drivers/net/wireless/ath/wil6210/main.c
index 398900a1c29e..c54b008996ee 100644
--- a/drivers/net/wireless/ath/wil6210/main.c
+++ b/drivers/net/wireless/ath/wil6210/main.c
@@ -998,10 +998,13 @@ static int wil_target_reset(struct wil6210_priv *wil, int no_flash)
 
 	wil_dbg_misc(wil, "Resetting \"%s\"...\n", wil->hw_name);
 
-	/* Clear MAC link up */
-	wil_s(wil, RGF_HP_CTRL, BIT(15));
-	wil_s(wil, RGF_USER_CLKS_CTL_SW_RST_MASK_0, BIT_HPAL_PERST_FROM_PAD);
-	wil_s(wil, RGF_USER_CLKS_CTL_SW_RST_MASK_0, BIT_CAR_PERST_RST);
+	if (wil->hw_version < HW_VER_TALYN) {
+		/* Clear MAC link up */
+		wil_s(wil, RGF_HP_CTRL, BIT(15));
+		wil_s(wil, RGF_USER_CLKS_CTL_SW_RST_MASK_0,
+		      BIT_HPAL_PERST_FROM_PAD);
+		wil_s(wil, RGF_USER_CLKS_CTL_SW_RST_MASK_0, BIT_CAR_PERST_RST);
+	}
 
 	wil_halt_cpu(wil);
 

From cbebe277beb1169a157d5f486c87f5ceabf0bf82 Mon Sep 17 00:00:00 2001
From: Maya Erez <merez@codeaurora.org>
Date: Wed, 31 Oct 2018 10:52:11 +0200
Subject: [PATCH 020/124] wil6210: increase RX rings and RX buff array size

In Talyn-MB, the 11ad throughput is higher and performance drops
may occur in the current RX configuration due to unavailability
of Rx buffers.
Increase the RX descriptor ring, RX status ring and number of RX
buffers to stabilize the performance in high throughput.

Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/wil6210/main.c      | 7 ++++++-
 drivers/net/wireless/ath/wil6210/txrx_edma.c | 4 ++--
 drivers/net/wireless/ath/wil6210/txrx_edma.h | 4 ++--
 drivers/net/wireless/ath/wil6210/wil6210.h   | 1 +
 4 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/ath/wil6210/main.c b/drivers/net/wireless/ath/wil6210/main.c
index c54b008996ee..078ad5cf664c 100644
--- a/drivers/net/wireless/ath/wil6210/main.c
+++ b/drivers/net/wireless/ath/wil6210/main.c
@@ -80,7 +80,7 @@ static const struct kernel_param_ops mtu_max_ops = {
 module_param_cb(mtu_max, &mtu_max_ops, &mtu_max, 0444);
 MODULE_PARM_DESC(mtu_max, " Max MTU value.");
 
-static uint rx_ring_order = WIL_RX_RING_SIZE_ORDER_DEFAULT;
+static uint rx_ring_order;
 static uint tx_ring_order = WIL_TX_RING_SIZE_ORDER_DEFAULT;
 static uint bcast_ring_order = WIL_BCAST_RING_SIZE_ORDER_DEFAULT;
 
@@ -1684,6 +1684,11 @@ int __wil_up(struct wil6210_priv *wil)
 		return rc;
 
 	/* Rx RING. After MAC and beacon */
+	if (rx_ring_order == 0)
+		rx_ring_order = wil->hw_version < HW_VER_TALYN_MB ?
+			WIL_RX_RING_SIZE_ORDER_DEFAULT :
+			WIL_RX_RING_SIZE_ORDER_TALYN_DEFAULT;
+
 	rc = wil->txrx_ops.rx_init(wil, 1 << rx_ring_order);
 	if (rc)
 		return rc;
diff --git a/drivers/net/wireless/ath/wil6210/txrx_edma.c b/drivers/net/wireless/ath/wil6210/txrx_edma.c
index 2bbae75b9a84..ce713588a547 100644
--- a/drivers/net/wireless/ath/wil6210/txrx_edma.c
+++ b/drivers/net/wireless/ath/wil6210/txrx_edma.c
@@ -357,8 +357,8 @@ static int wil_init_rx_sring(struct wil6210_priv *wil,
 	struct wil_status_ring *sring = &wil->srings[ring_id];
 	int rc;
 
-	wil_dbg_misc(wil, "init RX sring: size=%u, ring_id=%u\n", sring->size,
-		     ring_id);
+	wil_dbg_misc(wil, "init RX sring: size=%u, ring_id=%u\n",
+		     status_ring_size, ring_id);
 
 	memset(&sring->rx_data, 0, sizeof(sring->rx_data));
 
diff --git a/drivers/net/wireless/ath/wil6210/txrx_edma.h b/drivers/net/wireless/ath/wil6210/txrx_edma.h
index a7fe9292fda3..343516a03a1e 100644
--- a/drivers/net/wireless/ath/wil6210/txrx_edma.h
+++ b/drivers/net/wireless/ath/wil6210/txrx_edma.h
@@ -23,9 +23,9 @@
 #define WIL_SRING_SIZE_ORDER_MIN	(WIL_RING_SIZE_ORDER_MIN)
 #define WIL_SRING_SIZE_ORDER_MAX	(WIL_RING_SIZE_ORDER_MAX)
 /* RX sring order should be bigger than RX ring order */
-#define WIL_RX_SRING_SIZE_ORDER_DEFAULT	(11)
+#define WIL_RX_SRING_SIZE_ORDER_DEFAULT	(12)
 #define WIL_TX_SRING_SIZE_ORDER_DEFAULT	(12)
-#define WIL_RX_BUFF_ARR_SIZE_DEFAULT (1536)
+#define WIL_RX_BUFF_ARR_SIZE_DEFAULT (2600)
 
 #define WIL_DEFAULT_RX_STATUS_RING_ID 0
 #define WIL_RX_DESC_RING_ID 0
diff --git a/drivers/net/wireless/ath/wil6210/wil6210.h b/drivers/net/wireless/ath/wil6210/wil6210.h
index abb82018d3b4..414de541abd0 100644
--- a/drivers/net/wireless/ath/wil6210/wil6210.h
+++ b/drivers/net/wireless/ath/wil6210/wil6210.h
@@ -81,6 +81,7 @@ static inline u32 WIL_GET_BITS(u32 x, int b0, int b1)
 
 #define WIL_TX_Q_LEN_DEFAULT		(4000)
 #define WIL_RX_RING_SIZE_ORDER_DEFAULT	(10)
+#define WIL_RX_RING_SIZE_ORDER_TALYN_DEFAULT	(11)
 #define WIL_TX_RING_SIZE_ORDER_DEFAULT	(12)
 #define WIL_BCAST_RING_SIZE_ORDER_DEFAULT	(7)
 #define WIL_BCAST_MCS0_LIMIT		(1024) /* limit for MCS0 frame size */

From 61e5ec044748486f06dec760a19dce78247b3ad8 Mon Sep 17 00:00:00 2001
From: Dedy Lansky <dlansky@codeaurora.org>
Date: Wed, 31 Oct 2018 10:52:12 +0200
Subject: [PATCH 021/124] wil6210: make sure Rx ring sizes are correlated

When enlarging rx_ring_order module param, wil6210 fails to load
because there are not enough Rx buffers.
Fix this by enlarging number of Rx buffers at startup, if needed based
on rx_ring_order.

Signed-off-by: Dedy Lansky <dlansky@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/wil6210/main.c      |  2 +-
 drivers/net/wireless/ath/wil6210/txrx.c      |  4 ++--
 drivers/net/wireless/ath/wil6210/txrx_edma.c | 11 ++++++++---
 drivers/net/wireless/ath/wil6210/wil6210.h   |  2 +-
 4 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/drivers/net/wireless/ath/wil6210/main.c b/drivers/net/wireless/ath/wil6210/main.c
index 078ad5cf664c..55084770433c 100644
--- a/drivers/net/wireless/ath/wil6210/main.c
+++ b/drivers/net/wireless/ath/wil6210/main.c
@@ -1689,7 +1689,7 @@ int __wil_up(struct wil6210_priv *wil)
 			WIL_RX_RING_SIZE_ORDER_DEFAULT :
 			WIL_RX_RING_SIZE_ORDER_TALYN_DEFAULT;
 
-	rc = wil->txrx_ops.rx_init(wil, 1 << rx_ring_order);
+	rc = wil->txrx_ops.rx_init(wil, rx_ring_order);
 	if (rc)
 		return rc;
 
diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c
index 70eceec9945e..c592c8e42abc 100644
--- a/drivers/net/wireless/ath/wil6210/txrx.c
+++ b/drivers/net/wireless/ath/wil6210/txrx.c
@@ -872,7 +872,7 @@ static void wil_rx_buf_len_init(struct wil6210_priv *wil)
 	}
 }
 
-static int wil_rx_init(struct wil6210_priv *wil, u16 size)
+static int wil_rx_init(struct wil6210_priv *wil, uint order)
 {
 	struct wil_ring *vring = &wil->ring_rx;
 	int rc;
@@ -886,7 +886,7 @@ static int wil_rx_init(struct wil6210_priv *wil, u16 size)
 
 	wil_rx_buf_len_init(wil);
 
-	vring->size = size;
+	vring->size = 1 << order;
 	vring->is_rx = true;
 	rc = wil_vring_alloc(wil, vring);
 	if (rc)
diff --git a/drivers/net/wireless/ath/wil6210/txrx_edma.c b/drivers/net/wireless/ath/wil6210/txrx_edma.c
index ce713588a547..fe758f24b448 100644
--- a/drivers/net/wireless/ath/wil6210/txrx_edma.c
+++ b/drivers/net/wireless/ath/wil6210/txrx_edma.c
@@ -606,9 +606,9 @@ static void wil_rx_buf_len_init_edma(struct wil6210_priv *wil)
 		WIL_MAX_ETH_MTU : WIL_EDMA_RX_BUF_LEN_DEFAULT;
 }
 
-static int wil_rx_init_edma(struct wil6210_priv *wil, u16 desc_ring_size)
+static int wil_rx_init_edma(struct wil6210_priv *wil, uint desc_ring_order)
 {
-	u16 status_ring_size;
+	u16 status_ring_size, desc_ring_size = 1 << desc_ring_order;
 	struct wil_ring *ring = &wil->ring_rx;
 	int rc;
 	size_t elem_size = wil->use_compressed_rx_status ?
@@ -623,7 +623,12 @@ static int wil_rx_init_edma(struct wil6210_priv *wil, u16 desc_ring_size)
 			"compressed RX status cannot be used with SW reorder\n");
 		return -EINVAL;
 	}
-
+	if (wil->rx_status_ring_order <= desc_ring_order)
+		/* make sure sring is larger than desc ring */
+		wil->rx_status_ring_order = desc_ring_order + 1;
+	if (wil->rx_buff_id_count <= desc_ring_size)
+		/* make sure we will not run out of buff_ids */
+		wil->rx_buff_id_count = desc_ring_size + 512;
 	if (wil->rx_status_ring_order < WIL_SRING_SIZE_ORDER_MIN ||
 	    wil->rx_status_ring_order > WIL_SRING_SIZE_ORDER_MAX)
 		wil->rx_status_ring_order = WIL_RX_SRING_SIZE_ORDER_DEFAULT;
diff --git a/drivers/net/wireless/ath/wil6210/wil6210.h b/drivers/net/wireless/ath/wil6210/wil6210.h
index 414de541abd0..31753f941708 100644
--- a/drivers/net/wireless/ath/wil6210/wil6210.h
+++ b/drivers/net/wireless/ath/wil6210/wil6210.h
@@ -614,7 +614,7 @@ struct wil_txrx_ops {
 			      int cid, int tid);
 	irqreturn_t (*irq_tx)(int irq, void *cookie);
 	/* RX ops */
-	int (*rx_init)(struct wil6210_priv *wil, u16 ring_size);
+	int (*rx_init)(struct wil6210_priv *wil, uint ring_order);
 	void (*rx_fini)(struct wil6210_priv *wil);
 	int (*wmi_addba_rx_resp)(struct wil6210_priv *wil, u8 mid, u8 cid,
 				 u8 tid, u8 token, u16 status, bool amsdu,

From e41ab937d47b3c1180057f72968bf62b487fc80f Mon Sep 17 00:00:00 2001
From: Dedy Lansky <dlansky@codeaurora.org>
Date: Wed, 31 Oct 2018 10:52:13 +0200
Subject: [PATCH 022/124] wil6210: add recovery for FW error while in AP mode

AP configuration is stored by the driver. Upon FW error, disconnect
notification is sent to user space for any associated stations. AP is
then internally restarted with the stored configuration.

Signed-off-by: Dedy Lansky <dlansky@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/wil6210/cfg80211.c | 102 +++++++++++++++++++-
 drivers/net/wireless/ath/wil6210/main.c     |  17 +++-
 drivers/net/wireless/ath/wil6210/wil6210.h  |   9 ++
 3 files changed, 120 insertions(+), 8 deletions(-)

diff --git a/drivers/net/wireless/ath/wil6210/cfg80211.c b/drivers/net/wireless/ath/wil6210/cfg80211.c
index d18e81fae5f1..e9135d62756e 100644
--- a/drivers/net/wireless/ath/wil6210/cfg80211.c
+++ b/drivers/net/wireless/ath/wil6210/cfg80211.c
@@ -51,6 +51,19 @@ static struct ieee80211_channel wil_60ghz_channels[] = {
 	CHAN60G(4, 0),
 };
 
+static void
+wil_memdup_ie(u8 **pdst, size_t *pdst_len, const u8 *src, size_t src_len)
+{
+	kfree(*pdst);
+	*pdst = NULL;
+	*pdst_len = 0;
+	if (src_len > 0) {
+		*pdst = kmemdup(src, src_len, GFP_KERNEL);
+		if (*pdst)
+			*pdst_len = src_len;
+	}
+}
+
 static int wil_num_supported_channels(struct wil6210_priv *wil)
 {
 	int num_channels = ARRAY_SIZE(wil_60ghz_channels);
@@ -1441,11 +1454,19 @@ static int wil_cfg80211_add_key(struct wiphy *wiphy,
 
 	rc = wmi_add_cipher_key(vif, key_index, mac_addr, params->key_len,
 				params->key, key_usage);
-	if (!rc && !IS_ERR(cs))
+	if (!rc && !IS_ERR(cs)) {
+		/* update local storage used for AP recovery */
+		if (key_usage == WMI_KEY_USE_TX_GROUP && params->key &&
+		    params->key_len <= WMI_MAX_KEY_LEN) {
+			vif->gtk_index = key_index;
+			memcpy(vif->gtk, params->key, params->key_len);
+			vif->gtk_len = params->key_len;
+		}
 		/* in FT set crypto will take place upon receiving
 		 * WMI_RING_EN_EVENTID event
 		 */
 		wil_set_crypto_rx(key_index, key_usage, cs, params);
+	}
 
 	return rc;
 }
@@ -1634,6 +1655,14 @@ static int _wil_cfg80211_set_ies(struct wil6210_vif *vif,
 	u16 len = 0, proberesp_len = 0;
 	u8 *ies = NULL, *proberesp;
 
+	/* update local storage used for AP recovery */
+	wil_memdup_ie(&vif->proberesp, &vif->proberesp_len, bcon->probe_resp,
+		      bcon->probe_resp_len);
+	wil_memdup_ie(&vif->proberesp_ies, &vif->proberesp_ies_len,
+		      bcon->proberesp_ies, bcon->proberesp_ies_len);
+	wil_memdup_ie(&vif->assocresp_ies, &vif->assocresp_ies_len,
+		      bcon->assocresp_ies, bcon->assocresp_ies_len);
+
 	proberesp = _wil_cfg80211_get_proberesp_ies(bcon->probe_resp,
 						    bcon->probe_resp_len,
 						    &proberesp_len);
@@ -1735,6 +1764,9 @@ static int _wil_cfg80211_start_ap(struct wiphy *wiphy,
 	vif->channel = chan;
 	vif->hidden_ssid = hidden_ssid;
 	vif->pbss = pbss;
+	vif->bi = bi;
+	memcpy(vif->ssid, ssid, ssid_len);
+	vif->ssid_len = ssid_len;
 
 	netif_carrier_on(ndev);
 	if (!wil_has_other_active_ifaces(wil, ndev, false, true))
@@ -1761,11 +1793,64 @@ static int _wil_cfg80211_start_ap(struct wiphy *wiphy,
 	return rc;
 }
 
+void wil_cfg80211_ap_recovery(struct wil6210_priv *wil)
+{
+	int rc, i;
+	struct wiphy *wiphy = wil_to_wiphy(wil);
+
+	for (i = 0; i < wil->max_vifs; i++) {
+		struct wil6210_vif *vif = wil->vifs[i];
+		struct net_device *ndev;
+		struct cfg80211_beacon_data bcon = {};
+		struct key_params key_params = {};
+
+		if (!vif || vif->ssid_len == 0)
+			continue;
+
+		ndev = vif_to_ndev(vif);
+		bcon.proberesp_ies = vif->proberesp_ies;
+		bcon.assocresp_ies = vif->assocresp_ies;
+		bcon.probe_resp = vif->proberesp;
+		bcon.proberesp_ies_len = vif->proberesp_ies_len;
+		bcon.assocresp_ies_len = vif->assocresp_ies_len;
+		bcon.probe_resp_len = vif->proberesp_len;
+
+		wil_info(wil,
+			 "AP (vif %d) recovery: privacy %d, bi %d, channel %d, hidden %d, pbss %d\n",
+			 i, vif->privacy, vif->bi, vif->channel,
+			 vif->hidden_ssid, vif->pbss);
+		wil_hex_dump_misc("SSID ", DUMP_PREFIX_OFFSET, 16, 1,
+				  vif->ssid, vif->ssid_len, true);
+		rc = _wil_cfg80211_start_ap(wiphy, ndev,
+					    vif->ssid, vif->ssid_len,
+					    vif->privacy, vif->bi,
+					    vif->channel, &bcon,
+					    vif->hidden_ssid, vif->pbss);
+		if (rc) {
+			wil_err(wil, "vif %d recovery failed (%d)\n", i, rc);
+			continue;
+		}
+
+		if (!vif->privacy || vif->gtk_len == 0)
+			continue;
+
+		key_params.key = vif->gtk;
+		key_params.key_len = vif->gtk_len;
+		key_params.seq_len = IEEE80211_GCMP_PN_LEN;
+		rc = wil_cfg80211_add_key(wiphy, ndev, vif->gtk_index, false,
+					  NULL, &key_params);
+		if (rc)
+			wil_err(wil, "vif %d recovery add key failed (%d)\n",
+				i, rc);
+	}
+}
+
 static int wil_cfg80211_change_beacon(struct wiphy *wiphy,
 				      struct net_device *ndev,
 				      struct cfg80211_beacon_data *bcon)
 {
 	struct wil6210_priv *wil = wiphy_to_wil(wiphy);
+	struct wireless_dev *wdev = ndev->ieee80211_ptr;
 	struct wil6210_vif *vif = ndev_to_vif(ndev);
 	int rc;
 	u32 privacy = 0;
@@ -1778,15 +1863,16 @@ static int wil_cfg80211_change_beacon(struct wiphy *wiphy,
 			     bcon->tail_len))
 		privacy = 1;
 
+	memcpy(vif->ssid, wdev->ssid, wdev->ssid_len);
+	vif->ssid_len = wdev->ssid_len;
+
 	/* in case privacy has changed, need to restart the AP */
 	if (vif->privacy != privacy) {
-		struct wireless_dev *wdev = ndev->ieee80211_ptr;
-
 		wil_dbg_misc(wil, "privacy changed %d=>%d. Restarting AP\n",
 			     vif->privacy, privacy);
 
-		rc = _wil_cfg80211_start_ap(wiphy, ndev, wdev->ssid,
-					    wdev->ssid_len, privacy,
+		rc = _wil_cfg80211_start_ap(wiphy, ndev, vif->ssid,
+					    vif->ssid_len, privacy,
 					    wdev->beacon_interval,
 					    vif->channel, bcon,
 					    vif->hidden_ssid,
@@ -1876,6 +1962,12 @@ static int wil_cfg80211_stop_ap(struct wiphy *wiphy,
 
 	wmi_pcp_stop(vif);
 	clear_bit(wil_vif_ft_roam, vif->status);
+	vif->ssid_len = 0;
+	wil_memdup_ie(&vif->proberesp, &vif->proberesp_len, NULL, 0);
+	wil_memdup_ie(&vif->proberesp_ies, &vif->proberesp_ies_len, NULL, 0);
+	wil_memdup_ie(&vif->assocresp_ies, &vif->assocresp_ies_len, NULL, 0);
+	memset(vif->gtk, 0, WMI_MAX_KEY_LEN);
+	vif->gtk_len = 0;
 
 	if (last)
 		__wil_down(wil);
diff --git a/drivers/net/wireless/ath/wil6210/main.c b/drivers/net/wireless/ath/wil6210/main.c
index 55084770433c..2b328c197274 100644
--- a/drivers/net/wireless/ath/wil6210/main.c
+++ b/drivers/net/wireless/ath/wil6210/main.c
@@ -18,6 +18,7 @@
 #include <linux/moduleparam.h>
 #include <linux/if_arp.h>
 #include <linux/etherdevice.h>
+#include <linux/rtnetlink.h>
 
 #include "wil6210.h"
 #include "txrx.h"
@@ -485,10 +486,11 @@ static void wil_fw_error_worker(struct work_struct *work)
 	if (wil_wait_for_recovery(wil) != 0)
 		return;
 
+	rtnl_lock();
 	mutex_lock(&wil->mutex);
 	/* Needs adaptation for multiple VIFs
 	 * need to go over all VIFs and consider the appropriate
-	 * recovery.
+	 * recovery because each one can have different iftype.
 	 */
 	switch (wdev->iftype) {
 	case NL80211_IFTYPE_STATION:
@@ -500,15 +502,24 @@ static void wil_fw_error_worker(struct work_struct *work)
 		break;
 	case NL80211_IFTYPE_AP:
 	case NL80211_IFTYPE_P2P_GO:
-		wil_info(wil, "No recovery for AP-like interface\n");
-		/* recovery in these modes is done by upper layers */
+		if (no_fw_recovery) /* upper layers do recovery */
+			break;
+		/* silent recovery, upper layers will see disconnect */
+		__wil_down(wil);
+		__wil_up(wil);
+		mutex_unlock(&wil->mutex);
+		wil_cfg80211_ap_recovery(wil);
+		mutex_lock(&wil->mutex);
+		wil_info(wil, "... completed\n");
 		break;
 	default:
 		wil_err(wil, "No recovery - unknown interface type %d\n",
 			wdev->iftype);
 		break;
 	}
+
 	mutex_unlock(&wil->mutex);
+	rtnl_unlock();
 }
 
 static int wil_find_free_ring(struct wil6210_priv *wil)
diff --git a/drivers/net/wireless/ath/wil6210/wil6210.h b/drivers/net/wireless/ath/wil6210/wil6210.h
index 31753f941708..8050c4bc5385 100644
--- a/drivers/net/wireless/ath/wil6210/wil6210.h
+++ b/drivers/net/wireless/ath/wil6210/wil6210.h
@@ -849,6 +849,14 @@ struct wil6210_vif {
 	u8 hidden_ssid; /* relevant in AP mode */
 	u32 ap_isolate; /* no intra-BSS communication */
 	bool pbss;
+	int bi;
+	u8 *proberesp, *proberesp_ies, *assocresp_ies;
+	size_t proberesp_len, proberesp_ies_len, assocresp_ies_len;
+	u8 ssid[IEEE80211_MAX_SSID_LEN];
+	size_t ssid_len;
+	u8 gtk_index;
+	u8 gtk[WMI_MAX_KEY_LEN];
+	size_t gtk_len;
 	int bcast_ring;
 	struct cfg80211_bss *bss; /* connected bss, relevant in STA mode */
 	int locally_generated_disc; /* relevant in STA mode */
@@ -1277,6 +1285,7 @@ int wmi_stop_discovery(struct wil6210_vif *vif);
 int wil_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 			 struct cfg80211_mgmt_tx_params *params,
 			 u64 *cookie);
+void wil_cfg80211_ap_recovery(struct wil6210_priv *wil);
 int wil_cfg80211_iface_combinations_from_fw(
 	struct wil6210_priv *wil,
 	const struct wil_fw_record_concurrency *conc);

From 664497400c89a4d40aee51bcf48bbd2e4dc71104 Mon Sep 17 00:00:00 2001
From: Lior David <liord@codeaurora.org>
Date: Wed, 31 Oct 2018 10:52:14 +0200
Subject: [PATCH 023/124] wil6210: fix memory leak in wil_find_tx_bcast_2

A successful call to wil_tx_ring takes skb reference so
it will only be freed in wil_tx_complete. Consume the skb
in wil_find_tx_bcast_2 to prevent memory leak.

Signed-off-by: Lior David <liord@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/wil6210/txrx.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c
index c592c8e42abc..3e1c831ab2fb 100644
--- a/drivers/net/wireless/ath/wil6210/txrx.c
+++ b/drivers/net/wireless/ath/wil6210/txrx.c
@@ -1395,6 +1395,8 @@ static struct wil_ring *wil_find_tx_bcast_2(struct wil6210_priv *wil,
 			wil_dbg_txrx(wil, "BCAST DUP -> ring %d\n", i);
 			wil_set_da_for_vring(wil, skb2, i);
 			wil_tx_ring(wil, vif, v2, skb2);
+			/* successful call to wil_tx_ring takes skb2 ref */
+			dev_kfree_skb_any(skb2);
 		} else {
 			wil_err(wil, "skb_copy failed\n");
 		}

From e1b43407c034650c11bc597bef319f03b8262b6c Mon Sep 17 00:00:00 2001
From: Ahmad Masri <amasri@codeaurora.org>
Date: Wed, 31 Oct 2018 10:52:15 +0200
Subject: [PATCH 024/124] wil6210: refactor disconnect flow

Separate sending command to the fw from the event handling function to
simplify the disconnect flow and track the from_event flag correctly.

Signed-off-by: Ahmad Masri <amasri@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/wil6210/cfg80211.c |   2 +-
 drivers/net/wireless/ath/wil6210/main.c     | 179 +++++++++++++++-----
 drivers/net/wireless/ath/wil6210/netdev.c   |   2 +-
 drivers/net/wireless/ath/wil6210/wil6210.h  |   8 +-
 drivers/net/wireless/ath/wil6210/wmi.c      |  28 +--
 5 files changed, 147 insertions(+), 72 deletions(-)

diff --git a/drivers/net/wireless/ath/wil6210/cfg80211.c b/drivers/net/wireless/ath/wil6210/cfg80211.c
index e9135d62756e..9b2f9f543952 100644
--- a/drivers/net/wireless/ath/wil6210/cfg80211.c
+++ b/drivers/net/wireless/ath/wil6210/cfg80211.c
@@ -2015,7 +2015,7 @@ static int wil_cfg80211_del_station(struct wiphy *wiphy,
 		     params->mac, params->reason_code, vif->mid);
 
 	mutex_lock(&wil->mutex);
-	wil6210_disconnect(vif, params->mac, params->reason_code, false);
+	wil6210_disconnect(vif, params->mac, params->reason_code);
 	mutex_unlock(&wil->mutex);
 
 	return 0;
diff --git a/drivers/net/wireless/ath/wil6210/main.c b/drivers/net/wireless/ath/wil6210/main.c
index 2b328c197274..68aca52a68e4 100644
--- a/drivers/net/wireless/ath/wil6210/main.c
+++ b/drivers/net/wireless/ath/wil6210/main.c
@@ -215,8 +215,21 @@ static void wil_ring_fini_tx(struct wil6210_priv *wil, int id)
 	wil->txrx_ops.ring_fini_tx(wil, ring);
 }
 
-static void wil_disconnect_cid(struct wil6210_vif *vif, int cid,
-			       u16 reason_code, bool from_event)
+static bool wil_vif_is_connected(struct wil6210_priv *wil, u8 mid)
+{
+	int i;
+
+	for (i = 0; i < WIL6210_MAX_CID; i++) {
+		if (wil->sta[i].mid == mid &&
+		    wil->sta[i].status == wil_sta_connected)
+			return true;
+	}
+
+	return false;
+}
+
+static void wil_disconnect_cid_complete(struct wil6210_vif *vif, int cid,
+					u16 reason_code)
 __acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock)
 {
 	uint i;
@@ -227,24 +240,14 @@ __acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock)
 	int min_ring_id = wil_get_min_tx_ring_id(wil);
 
 	might_sleep();
-	wil_dbg_misc(wil, "disconnect_cid: CID %d, MID %d, status %d\n",
+	wil_dbg_misc(wil,
+		     "disconnect_cid_complete: CID %d, MID %d, status %d\n",
 		     cid, sta->mid, sta->status);
-	/* inform upper/lower layers */
+	/* inform upper layers */
 	if (sta->status != wil_sta_unused) {
 		if (vif->mid != sta->mid) {
 			wil_err(wil, "STA MID mismatch with VIF MID(%d)\n",
 				vif->mid);
-			/* let FW override sta->mid but be more strict with
-			 * user space requests
-			 */
-			if (!from_event)
-				return;
-		}
-		if (!from_event) {
-			bool del_sta = (wdev->iftype == NL80211_IFTYPE_AP) ?
-						disable_ap_sme : false;
-			wmi_disconnect_sta(vif, sta->addr, reason_code,
-					   true, del_sta);
 		}
 
 		switch (wdev->iftype) {
@@ -284,36 +287,20 @@ __acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock)
 	sta->stats.tx_latency_min_us = U32_MAX;
 }
 
-static bool wil_vif_is_connected(struct wil6210_priv *wil, u8 mid)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
-		if (wil->sta[i].mid == mid &&
-		    wil->sta[i].status == wil_sta_connected)
-			return true;
-	}
-
-	return false;
-}
-
-static void _wil6210_disconnect(struct wil6210_vif *vif, const u8 *bssid,
-				u16 reason_code, bool from_event)
+static void _wil6210_disconnect_complete(struct wil6210_vif *vif,
+					 const u8 *bssid, u16 reason_code)
 {
 	struct wil6210_priv *wil = vif_to_wil(vif);
 	int cid = -ENOENT;
 	struct net_device *ndev;
 	struct wireless_dev *wdev;
 
-	if (unlikely(!vif))
-		return;
-
 	ndev = vif_to_ndev(vif);
 	wdev = vif_to_wdev(vif);
 
 	might_sleep();
-	wil_info(wil, "bssid=%pM, reason=%d, ev%s\n", bssid,
-		 reason_code, from_event ? "+" : "-");
+	wil_info(wil, "disconnect_complete: bssid=%pM, reason=%d\n",
+		 bssid, reason_code);
 
 	/* Cases are:
 	 * - disconnect single STA, still connected
@@ -328,14 +315,15 @@ static void _wil6210_disconnect(struct wil6210_vif *vif, const u8 *bssid,
 	if (bssid && !is_broadcast_ether_addr(bssid) &&
 	    !ether_addr_equal_unaligned(ndev->dev_addr, bssid)) {
 		cid = wil_find_cid(wil, vif->mid, bssid);
-		wil_dbg_misc(wil, "Disconnect %pM, CID=%d, reason=%d\n",
+		wil_dbg_misc(wil,
+			     "Disconnect complete %pM, CID=%d, reason=%d\n",
 			     bssid, cid, reason_code);
 		if (cid >= 0) /* disconnect 1 peer */
-			wil_disconnect_cid(vif, cid, reason_code, from_event);
+			wil_disconnect_cid_complete(vif, cid, reason_code);
 	} else { /* all */
-		wil_dbg_misc(wil, "Disconnect all\n");
+		wil_dbg_misc(wil, "Disconnect complete all\n");
 		for (cid = 0; cid < WIL6210_MAX_CID; cid++)
-			wil_disconnect_cid(vif, cid, reason_code, from_event);
+			wil_disconnect_cid_complete(vif, cid, reason_code);
 	}
 
 	/* link state */
@@ -381,6 +369,84 @@ static void _wil6210_disconnect(struct wil6210_vif *vif, const u8 *bssid,
 	}
 }
 
+static int wil_disconnect_cid(struct wil6210_vif *vif, int cid,
+			      u16 reason_code)
+{
+	struct wil6210_priv *wil = vif_to_wil(vif);
+	struct wireless_dev *wdev = vif_to_wdev(vif);
+	struct wil_sta_info *sta = &wil->sta[cid];
+	bool del_sta = false;
+
+	might_sleep();
+	wil_dbg_misc(wil, "disconnect_cid: CID %d, MID %d, status %d\n",
+		     cid, sta->mid, sta->status);
+
+	if (sta->status == wil_sta_unused)
+		return 0;
+
+	if (vif->mid != sta->mid) {
+		wil_err(wil, "STA MID mismatch with VIF MID(%d)\n", vif->mid);
+		return -EINVAL;
+	}
+
+	/* inform lower layers */
+	if (wdev->iftype == NL80211_IFTYPE_AP && disable_ap_sme)
+		del_sta = true;
+
+	/* disconnect by sending command disconnect/del_sta and wait
+	 * synchronously for WMI_DISCONNECT_EVENTID event.
+	 */
+	return wmi_disconnect_sta(vif, sta->addr, reason_code, del_sta);
+}
+
+static void _wil6210_disconnect(struct wil6210_vif *vif, const u8 *bssid,
+				u16 reason_code)
+{
+	struct wil6210_priv *wil;
+	struct net_device *ndev;
+	struct wireless_dev *wdev;
+	int cid = -ENOENT;
+
+	if (unlikely(!vif))
+		return;
+
+	wil = vif_to_wil(vif);
+	ndev = vif_to_ndev(vif);
+	wdev = vif_to_wdev(vif);
+
+	might_sleep();
+	wil_info(wil, "disconnect bssid=%pM, reason=%d\n", bssid, reason_code);
+
+	/* Cases are:
+	 * - disconnect single STA, still connected
+	 * - disconnect single STA, already disconnected
+	 * - disconnect all
+	 *
+	 * For "disconnect all", there are 3 options:
+	 * - bssid == NULL
+	 * - bssid is broadcast address (ff:ff:ff:ff:ff:ff)
+	 * - bssid is our MAC address
+	 */
+	if (bssid && !is_broadcast_ether_addr(bssid) &&
+	    !ether_addr_equal_unaligned(ndev->dev_addr, bssid)) {
+		cid = wil_find_cid(wil, vif->mid, bssid);
+		wil_dbg_misc(wil, "Disconnect %pM, CID=%d, reason=%d\n",
+			     bssid, cid, reason_code);
+		if (cid >= 0) /* disconnect 1 peer */
+			wil_disconnect_cid(vif, cid, reason_code);
+	} else { /* all */
+		wil_dbg_misc(wil, "Disconnect all\n");
+		for (cid = 0; cid < WIL6210_MAX_CID; cid++)
+			wil_disconnect_cid(vif, cid, reason_code);
+	}
+
+	/* call event handler manually after processing wmi_call,
+	 * to avoid deadlock - disconnect event handler acquires
+	 * wil->mutex while it is already held here
+	 */
+	_wil6210_disconnect_complete(vif, bssid, reason_code);
+}
+
 void wil_disconnect_worker(struct work_struct *work)
 {
 	struct wil6210_vif *vif = container_of(work,
@@ -705,20 +771,41 @@ void wil6210_bus_request(struct wil6210_priv *wil, u32 kbps)
  * @vif: virtual interface context
  * @bssid: peer to disconnect, NULL to disconnect all
  * @reason_code: Reason code for the Disassociation frame
- * @from_event: whether is invoked from FW event handler
  *
- * Disconnect and release associated resources. If invoked not from the
- * FW event handler, issue WMI command(s) to trigger MAC disconnect.
+ * Disconnect and release associated resources. Issue WMI
+ * command(s) to trigger MAC disconnect. When command was issued
+ * successfully, call the wil6210_disconnect_complete function
+ * to handle the event synchronously
  */
 void wil6210_disconnect(struct wil6210_vif *vif, const u8 *bssid,
-			u16 reason_code, bool from_event)
+			u16 reason_code)
 {
 	struct wil6210_priv *wil = vif_to_wil(vif);
 
-	wil_dbg_misc(wil, "disconnect\n");
+	wil_dbg_misc(wil, "disconnecting\n");
 
 	del_timer_sync(&vif->connect_timer);
-	_wil6210_disconnect(vif, bssid, reason_code, from_event);
+	_wil6210_disconnect(vif, bssid, reason_code);
+}
+
+/**
+ * wil6210_disconnect_complete - handle disconnect event
+ * @vif: virtual interface context
+ * @bssid: peer to disconnect, NULL to disconnect all
+ * @reason_code: Reason code for the Disassociation frame
+ *
+ * Release associated resources and indicate upper layers the
+ * connection is terminated.
+ */
+void wil6210_disconnect_complete(struct wil6210_vif *vif, const u8 *bssid,
+				 u16 reason_code)
+{
+	struct wil6210_priv *wil = vif_to_wil(vif);
+
+	wil_dbg_misc(wil, "got disconnect\n");
+
+	del_timer_sync(&vif->connect_timer);
+	_wil6210_disconnect_complete(vif, bssid, reason_code);
 }
 
 void wil_priv_deinit(struct wil6210_priv *wil)
@@ -1525,7 +1612,7 @@ int wil_reset(struct wil6210_priv *wil, bool load_fw)
 		if (vif) {
 			cancel_work_sync(&vif->disconnect_worker);
 			wil6210_disconnect(vif, NULL,
-					   WLAN_REASON_DEAUTH_LEAVING, false);
+					   WLAN_REASON_DEAUTH_LEAVING);
 		}
 	}
 	wil_bcast_fini_all(wil);
diff --git a/drivers/net/wireless/ath/wil6210/netdev.c b/drivers/net/wireless/ath/wil6210/netdev.c
index 64fa1a295510..b4e0eb1585b9 100644
--- a/drivers/net/wireless/ath/wil6210/netdev.c
+++ b/drivers/net/wireless/ath/wil6210/netdev.c
@@ -512,7 +512,7 @@ void wil_vif_remove(struct wil6210_priv *wil, u8 mid)
 	}
 
 	mutex_lock(&wil->mutex);
-	wil6210_disconnect(vif, NULL, WLAN_REASON_DEAUTH_LEAVING, false);
+	wil6210_disconnect(vif, NULL, WLAN_REASON_DEAUTH_LEAVING);
 	mutex_unlock(&wil->mutex);
 
 	ndev = vif_to_ndev(vif);
diff --git a/drivers/net/wireless/ath/wil6210/wil6210.h b/drivers/net/wireless/ath/wil6210/wil6210.h
index 8050c4bc5385..ad7003f350a2 100644
--- a/drivers/net/wireless/ath/wil6210/wil6210.h
+++ b/drivers/net/wireless/ath/wil6210/wil6210.h
@@ -1229,8 +1229,8 @@ int wmi_rx_chain_add(struct wil6210_priv *wil, struct wil_ring *vring);
 int wmi_update_ft_ies(struct wil6210_vif *vif, u16 ie_len, const void *ie);
 int wmi_rxon(struct wil6210_priv *wil, bool on);
 int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_m, u32 *t_r);
-int wmi_disconnect_sta(struct wil6210_vif *vif, const u8 *mac,
-		       u16 reason, bool full_disconnect, bool del_sta);
+int wmi_disconnect_sta(struct wil6210_vif *vif, const u8 *mac, u16 reason,
+		       bool del_sta);
 int wmi_addba(struct wil6210_priv *wil, u8 mid,
 	      u8 ringid, u8 size, u16 timeout);
 int wmi_delba_tx(struct wil6210_priv *wil, u8 mid, u8 ringid, u16 reason);
@@ -1316,7 +1316,9 @@ void wil_abort_scan(struct wil6210_vif *vif, bool sync);
 void wil_abort_scan_all_vifs(struct wil6210_priv *wil, bool sync);
 void wil6210_bus_request(struct wil6210_priv *wil, u32 kbps);
 void wil6210_disconnect(struct wil6210_vif *vif, const u8 *bssid,
-			u16 reason_code, bool from_event);
+			u16 reason_code);
+void wil6210_disconnect_complete(struct wil6210_vif *vif, const u8 *bssid,
+				 u16 reason_code);
 void wil_probe_client_flush(struct wil6210_vif *vif);
 void wil_probe_client_worker(struct work_struct *work);
 void wil_disconnect_worker(struct work_struct *work);
diff --git a/drivers/net/wireless/ath/wil6210/wmi.c b/drivers/net/wireless/ath/wil6210/wmi.c
index 4859f0e43658..5ff1862460f0 100644
--- a/drivers/net/wireless/ath/wil6210/wmi.c
+++ b/drivers/net/wireless/ath/wil6210/wmi.c
@@ -1018,7 +1018,7 @@ static void wmi_evt_connect(struct wil6210_vif *vif, int id, void *d, int len)
 		wil_err(wil, "config tx vring failed for CID %d, rc (%d)\n",
 			evt->cid, rc);
 		wmi_disconnect_sta(vif, wil->sta[evt->cid].addr,
-				   WLAN_REASON_UNSPECIFIED, false, false);
+				   WLAN_REASON_UNSPECIFIED, false);
 	} else {
 		wil_info(wil, "successful connection to CID %d\n", evt->cid);
 	}
@@ -1112,7 +1112,7 @@ static void wmi_evt_disconnect(struct wil6210_vif *vif, int id,
 	}
 
 	mutex_lock(&wil->mutex);
-	wil6210_disconnect(vif, evt->bssid, reason_code, true);
+	wil6210_disconnect_complete(vif, evt->bssid, reason_code);
 	mutex_unlock(&wil->mutex);
 }
 
@@ -1637,7 +1637,7 @@ wmi_evt_auth_status(struct wil6210_vif *vif, int id, void *d, int len)
 	return;
 
 fail:
-	wil6210_disconnect(vif, NULL, WLAN_REASON_PREV_AUTH_NOT_VALID, false);
+	wil6210_disconnect(vif, NULL, WLAN_REASON_PREV_AUTH_NOT_VALID);
 }
 
 static void
@@ -1766,7 +1766,7 @@ wmi_evt_reassoc_status(struct wil6210_vif *vif, int id, void *d, int len)
 	return;
 
 fail:
-	wil6210_disconnect(vif, NULL, WLAN_REASON_PREV_AUTH_NOT_VALID, false);
+	wil6210_disconnect(vif, NULL, WLAN_REASON_PREV_AUTH_NOT_VALID);
 }
 
 /**
@@ -2560,12 +2560,11 @@ int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_bb, u32 *t_rf)
 	return 0;
 }
 
-int wmi_disconnect_sta(struct wil6210_vif *vif, const u8 *mac,
-		       u16 reason, bool full_disconnect, bool del_sta)
+int wmi_disconnect_sta(struct wil6210_vif *vif, const u8 *mac, u16 reason,
+		       bool del_sta)
 {
 	struct wil6210_priv *wil = vif_to_wil(vif);
 	int rc;
-	u16 reason_code;
 	struct wmi_disconnect_sta_cmd disc_sta_cmd = {
 		.disconnect_reason = cpu_to_le16(reason),
 	};
@@ -2598,21 +2597,8 @@ int wmi_disconnect_sta(struct wil6210_vif *vif, const u8 *mac,
 		wil_fw_error_recovery(wil);
 		return rc;
 	}
+	wil->sinfo_gen++;
 
-	if (full_disconnect) {
-		/* call event handler manually after processing wmi_call,
-		 * to avoid deadlock - disconnect event handler acquires
-		 * wil->mutex while it is already held here
-		 */
-		reason_code = le16_to_cpu(reply.evt.protocol_reason_status);
-
-		wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n",
-			    reply.evt.bssid, reason_code,
-			    reply.evt.disconnect_reason);
-
-		wil->sinfo_gen++;
-		wil6210_disconnect(vif, reply.evt.bssid, reason_code, true);
-	}
 	return 0;
 }
 

From b571e71bcb98d6b629b486b9af027a73fc6da3c3 Mon Sep 17 00:00:00 2001
From: Ahmad Masri <amasri@codeaurora.org>
Date: Wed, 31 Oct 2018 10:52:16 +0200
Subject: [PATCH 025/124] wil6210: notify cqm packet loss on disable_ap_sme

wil6210 used to notify cfg80211_del_sta on every fw disconnect event.
In disable_ap_sme mode the userspace manages the protocol SME and
FW sends disconnect event only due to link loss.

In disable_ap_sme mode, indicate CQM packet loss to let the host
control the connection and disconnect the link if needed.

Signed-off-by: Ahmad Masri <amasri@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/wil6210/wmi.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/drivers/net/wireless/ath/wil6210/wmi.c b/drivers/net/wireless/ath/wil6210/wmi.c
index 5ff1862460f0..fa08a9637f44 100644
--- a/drivers/net/wireless/ath/wil6210/wmi.c
+++ b/drivers/net/wireless/ath/wil6210/wmi.c
@@ -1113,6 +1113,23 @@ static void wmi_evt_disconnect(struct wil6210_vif *vif, int id,
 
 	mutex_lock(&wil->mutex);
 	wil6210_disconnect_complete(vif, evt->bssid, reason_code);
+	if (disable_ap_sme) {
+		struct wireless_dev *wdev = vif_to_wdev(vif);
+		struct net_device *ndev = vif_to_ndev(vif);
+
+		/* disconnect event in disable_ap_sme mode means link loss */
+		switch (wdev->iftype) {
+		/* AP-like interface */
+		case NL80211_IFTYPE_AP:
+		case NL80211_IFTYPE_P2P_GO:
+			/* notify hostapd about link loss */
+			cfg80211_cqm_pktloss_notify(ndev, evt->bssid, 0,
+						    GFP_KERNEL);
+			break;
+		default:
+			break;
+		}
+	}
 	mutex_unlock(&wil->mutex);
 }
 

From ac0e541ab2f2951845acee784ef487be40fb4c77 Mon Sep 17 00:00:00 2001
From: Alexei Avshalom Lazar <ailizaro@codeaurora.org>
Date: Wed, 31 Oct 2018 10:52:17 +0200
Subject: [PATCH 026/124] wil6210: add general initialization/size checks

Initialize unset variable, and verify that mid is valid.

Signed-off-by: Alexei Avshalom Lazar <ailizaro@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/wil6210/debugfs.c | 2 ++
 drivers/net/wireless/ath/wil6210/wmi.c     | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/wil6210/debugfs.c b/drivers/net/wireless/ath/wil6210/debugfs.c
index aa50813a0595..099a04b91551 100644
--- a/drivers/net/wireless/ath/wil6210/debugfs.c
+++ b/drivers/net/wireless/ath/wil6210/debugfs.c
@@ -962,6 +962,8 @@ static ssize_t wil_write_file_txmgmt(struct file *file, const char __user *buf,
 	int rc;
 	void *frame;
 
+	memset(&params, 0, sizeof(params));
+
 	if (!len)
 		return -EINVAL;
 
diff --git a/drivers/net/wireless/ath/wil6210/wmi.c b/drivers/net/wireless/ath/wil6210/wmi.c
index fa08a9637f44..f46c703ca570 100644
--- a/drivers/net/wireless/ath/wil6210/wmi.c
+++ b/drivers/net/wireless/ath/wil6210/wmi.c
@@ -3148,7 +3148,7 @@ static void wmi_event_handle(struct wil6210_priv *wil,
 
 		if (mid == MID_BROADCAST)
 			mid = 0;
-		if (mid >= wil->max_vifs) {
+		if (mid >= ARRAY_SIZE(wil->vifs) || mid >= wil->max_vifs) {
 			wil_dbg_wmi(wil, "invalid mid %d, event skipped\n",
 				    mid);
 			return;

From 84ec040d0fb25197584d28a0dedc355503cd19b9 Mon Sep 17 00:00:00 2001
From: Ahmad Masri <amasri@codeaurora.org>
Date: Wed, 31 Oct 2018 10:52:18 +0200
Subject: [PATCH 027/124] wil6210: fix debugfs memory access alignment

All wil6210 device memory access should be 4 bytes aligned. In io
blob wil6210 did not force alignment for read function, this caused
alignment fault on some platforms.
Fixing that by accessing all 4 lower bytes and return to host the
requested data.

Signed-off-by: Ahmad Masri <amasri@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/wil6210/debugfs.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/ath/wil6210/debugfs.c b/drivers/net/wireless/ath/wil6210/debugfs.c
index 099a04b91551..20dd4d070911 100644
--- a/drivers/net/wireless/ath/wil6210/debugfs.c
+++ b/drivers/net/wireless/ath/wil6210/debugfs.c
@@ -664,10 +664,10 @@ static ssize_t wil_read_file_ioblob(struct file *file, char __user *user_buf,
 	enum { max_count = 4096 };
 	struct wil_blob_wrapper *wil_blob = file->private_data;
 	struct wil6210_priv *wil = wil_blob->wil;
-	loff_t pos = *ppos;
+	loff_t aligned_pos, pos = *ppos;
 	size_t available = wil_blob->blob.size;
 	void *buf;
-	size_t ret;
+	size_t unaligned_bytes, aligned_count, ret;
 	int rc;
 
 	if (test_bit(wil_status_suspending, wil_blob->wil->status) ||
@@ -685,7 +685,12 @@ static ssize_t wil_read_file_ioblob(struct file *file, char __user *user_buf,
 	if (count > max_count)
 		count = max_count;
 
-	buf = kmalloc(count, GFP_KERNEL);
+	/* set pos to 4 bytes aligned */
+	unaligned_bytes = pos % 4;
+	aligned_pos = pos - unaligned_bytes;
+	aligned_count = count + unaligned_bytes;
+
+	buf = kmalloc(aligned_count, GFP_KERNEL);
 	if (!buf)
 		return -ENOMEM;
 
@@ -696,9 +701,9 @@ static ssize_t wil_read_file_ioblob(struct file *file, char __user *user_buf,
 	}
 
 	wil_memcpy_fromio_32(buf, (const void __iomem *)
-			     wil_blob->blob.data + pos, count);
+			     wil_blob->blob.data + aligned_pos, aligned_count);
 
-	ret = copy_to_user(user_buf, buf, count);
+	ret = copy_to_user(user_buf, buf + unaligned_bytes, count);
 
 	wil_pm_runtime_put(wil);
 

From 04de15010aa42a92add66b159e3ae44b4287390f Mon Sep 17 00:00:00 2001
From: Maya Erez <merez@codeaurora.org>
Date: Wed, 31 Oct 2018 10:52:19 +0200
Subject: [PATCH 028/124] wil6210: fix L2 RX status handling

L2 RX status errors should not be treated as a bitmap and the actual
error values should be checked.
Print L2 errors as wil_err_ratelimited for easier debugging
when such errors occurs.

Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/wil6210/txrx_edma.c | 23 ++++++++++----------
 1 file changed, 12 insertions(+), 11 deletions(-)

diff --git a/drivers/net/wireless/ath/wil6210/txrx_edma.c b/drivers/net/wireless/ath/wil6210/txrx_edma.c
index fe758f24b448..c8490e727e6c 100644
--- a/drivers/net/wireless/ath/wil6210/txrx_edma.c
+++ b/drivers/net/wireless/ath/wil6210/txrx_edma.c
@@ -839,23 +839,24 @@ static int wil_rx_error_check_edma(struct wil6210_priv *wil,
 		wil_dbg_txrx(wil, "L2 RX error, l2_rx_status=0x%x\n",
 			     l2_rx_status);
 		/* Due to HW issue, KEY error will trigger a MIC error */
-		if (l2_rx_status & WIL_RX_EDMA_ERROR_MIC) {
-			wil_dbg_txrx(wil,
-				     "L2 MIC/KEY error, dropping packet\n");
+		if (l2_rx_status == WIL_RX_EDMA_ERROR_MIC) {
+			wil_err_ratelimited(wil,
+					    "L2 MIC/KEY error, dropping packet\n");
 			stats->rx_mic_error++;
 		}
-		if (l2_rx_status & WIL_RX_EDMA_ERROR_KEY) {
-			wil_dbg_txrx(wil, "L2 KEY error, dropping packet\n");
+		if (l2_rx_status == WIL_RX_EDMA_ERROR_KEY) {
+			wil_err_ratelimited(wil,
+					    "L2 KEY error, dropping packet\n");
 			stats->rx_key_error++;
 		}
-		if (l2_rx_status & WIL_RX_EDMA_ERROR_REPLAY) {
-			wil_dbg_txrx(wil,
-				     "L2 REPLAY error, dropping packet\n");
+		if (l2_rx_status == WIL_RX_EDMA_ERROR_REPLAY) {
+			wil_err_ratelimited(wil,
+					    "L2 REPLAY error, dropping packet\n");
 			stats->rx_replay++;
 		}
-		if (l2_rx_status & WIL_RX_EDMA_ERROR_AMSDU) {
-			wil_dbg_txrx(wil,
-				     "L2 AMSDU error, dropping packet\n");
+		if (l2_rx_status == WIL_RX_EDMA_ERROR_AMSDU) {
+			wil_err_ratelimited(wil,
+					    "L2 AMSDU error, dropping packet\n");
 			stats->rx_amsdu_error++;
 		}
 		return -EFAULT;

From 7c69709f8ed27197b16aa1c3f9b0744402b2fa02 Mon Sep 17 00:00:00 2001
From: Maya Erez <merez@codeaurora.org>
Date: Wed, 31 Oct 2018 10:52:20 +0200
Subject: [PATCH 029/124] wil6210: fix RGF_CAF_ICR address for Talyn-MB

RGF_CAF_ICR register location has changed in Talyn-MB.
Add RGF_CAF_ICR_TALYN_MB to support the new address.

Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/wil6210/main.c    | 11 +++++++++--
 drivers/net/wireless/ath/wil6210/wil6210.h |  1 +
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/wil6210/main.c b/drivers/net/wireless/ath/wil6210/main.c
index 68aca52a68e4..ba6a2eeedb65 100644
--- a/drivers/net/wireless/ath/wil6210/main.c
+++ b/drivers/net/wireless/ath/wil6210/main.c
@@ -1499,8 +1499,15 @@ static void wil_pre_fw_config(struct wil6210_priv *wil)
 	wil6210_clear_irq(wil);
 	/* CAF_ICR - clear and mask */
 	/* it is W1C, clear by writing back same value */
-	wil_s(wil, RGF_CAF_ICR + offsetof(struct RGF_ICR, ICR), 0);
-	wil_w(wil, RGF_CAF_ICR + offsetof(struct RGF_ICR, IMV), ~0);
+	if (wil->hw_version < HW_VER_TALYN_MB) {
+		wil_s(wil, RGF_CAF_ICR + offsetof(struct RGF_ICR, ICR), 0);
+		wil_w(wil, RGF_CAF_ICR + offsetof(struct RGF_ICR, IMV), ~0);
+	} else {
+		wil_s(wil,
+		      RGF_CAF_ICR_TALYN_MB + offsetof(struct RGF_ICR, ICR), 0);
+		wil_w(wil, RGF_CAF_ICR_TALYN_MB +
+		      offsetof(struct RGF_ICR, IMV), ~0);
+	}
 	/* clear PAL_UNIT_ICR (potential D0->D3 leftover)
 	 * In Talyn-MB host cannot access this register due to
 	 * access control, hence PAL_UNIT_ICR is cleared by the FW
diff --git a/drivers/net/wireless/ath/wil6210/wil6210.h b/drivers/net/wireless/ath/wil6210/wil6210.h
index ad7003f350a2..0f3be3ffc6a2 100644
--- a/drivers/net/wireless/ath/wil6210/wil6210.h
+++ b/drivers/net/wireless/ath/wil6210/wil6210.h
@@ -320,6 +320,7 @@ struct RGF_ICR {
 /* MAC timer, usec, for packet lifetime */
 #define RGF_MAC_MTRL_COUNTER_0		(0x886aa8)
 
+#define RGF_CAF_ICR_TALYN_MB		(0x8893d4) /* struct RGF_ICR */
 #define RGF_CAF_ICR			(0x88946c) /* struct RGF_ICR */
 #define RGF_CAF_OSC_CONTROL		(0x88afa4)
 	#define BIT_CAF_OSC_XTAL_EN		BIT(0)

From a834df7497b4e2bd609761b6e69fb9c8176ccf8e Mon Sep 17 00:00:00 2001
From: Ahmad Masri <amasri@codeaurora.org>
Date: Wed, 31 Oct 2018 10:52:22 +0200
Subject: [PATCH 030/124] wil6210: remove unnecessary alignment code from rx
 flow

Rx buffers in EDMA mode are initialized to 4 bytes aligned size.
Remove the unnecessary alignment code applied on rx buffer size.

Signed-off-by: Ahmad Masri <amasri@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/wil6210/txrx_edma.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/ath/wil6210/txrx_edma.c b/drivers/net/wireless/ath/wil6210/txrx_edma.c
index c8490e727e6c..686ba3463970 100644
--- a/drivers/net/wireless/ath/wil6210/txrx_edma.c
+++ b/drivers/net/wireless/ath/wil6210/txrx_edma.c
@@ -160,7 +160,7 @@ static int wil_ring_alloc_skb_edma(struct wil6210_priv *wil,
 				   struct wil_ring *ring, u32 i)
 {
 	struct device *dev = wil_to_dev(wil);
-	unsigned int sz = ALIGN(wil->rx_buf_len, 4);
+	unsigned int sz = wil->rx_buf_len;
 	dma_addr_t pa;
 	u16 buff_id;
 	struct list_head *active = &wil->rx_buff_mgmt.active;
@@ -602,6 +602,7 @@ static bool wil_is_rx_idle_edma(struct wil6210_priv *wil)
 
 static void wil_rx_buf_len_init_edma(struct wil6210_priv *wil)
 {
+	/* RX buffer size must be aligned to 4 bytes */
 	wil->rx_buf_len = rx_large_buf ?
 		WIL_MAX_ETH_MTU : WIL_EDMA_RX_BUF_LEN_DEFAULT;
 }
@@ -615,7 +616,6 @@ static int wil_rx_init_edma(struct wil6210_priv *wil, uint desc_ring_order)
 		sizeof(struct wil_rx_status_compressed) :
 		sizeof(struct wil_rx_status_extended);
 	int i;
-	u16 max_rx_pl_per_desc;
 
 	/* In SW reorder one must use extended status messages */
 	if (wil->use_compressed_rx_status && !wil->use_rx_hw_reordering) {
@@ -641,8 +641,6 @@ static int wil_rx_init_edma(struct wil6210_priv *wil, uint desc_ring_order)
 
 	wil_rx_buf_len_init_edma(wil);
 
-	max_rx_pl_per_desc = ALIGN(wil->rx_buf_len, 4);
-
 	/* Use debugfs dbg_num_rx_srings if set, reserve one sring for TX */
 	if (wil->num_rx_status_rings > WIL6210_MAX_STATUS_RINGS - 1)
 		wil->num_rx_status_rings = WIL6210_MAX_STATUS_RINGS - 1;
@@ -650,7 +648,7 @@ static int wil_rx_init_edma(struct wil6210_priv *wil, uint desc_ring_order)
 	wil_dbg_misc(wil, "rx_init: allocate %d status rings\n",
 		     wil->num_rx_status_rings);
 
-	rc = wil_wmi_cfg_def_rx_offload(wil, max_rx_pl_per_desc);
+	rc = wil_wmi_cfg_def_rx_offload(wil, wil->rx_buf_len);
 	if (rc)
 		return rc;
 
@@ -887,7 +885,7 @@ static struct sk_buff *wil_sring_reap_rx_edma(struct wil6210_priv *wil,
 	struct sk_buff *skb;
 	dma_addr_t pa;
 	struct wil_ring_rx_data *rxdata = &sring->rx_data;
-	unsigned int sz = ALIGN(wil->rx_buf_len, 4);
+	unsigned int sz = wil->rx_buf_len;
 	struct wil_net_stats *stats = NULL;
 	u16 dmalen;
 	int cid;

From 6470f31927b46846d957628b719dcfda05446664 Mon Sep 17 00:00:00 2001
From: Ahmad Masri <amasri@codeaurora.org>
Date: Wed, 31 Oct 2018 10:52:23 +0200
Subject: [PATCH 031/124] wil6210: fix freeing of rx buffers in EDMA mode

After being associated with some EDMA rx traffic, upon "down" driver
doesn't free all skbs in the rx ring.
Modify wil_move_all_rx_buff_to_free_list to loop on active list of rx
buffers, unmap the physical memory and free the skb.

Signed-off-by: Ahmad Masri <amasri@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/wil6210/txrx_edma.c | 44 +++++++-------------
 1 file changed, 14 insertions(+), 30 deletions(-)

diff --git a/drivers/net/wireless/ath/wil6210/txrx_edma.c b/drivers/net/wireless/ath/wil6210/txrx_edma.c
index 686ba3463970..05a8348bd7b9 100644
--- a/drivers/net/wireless/ath/wil6210/txrx_edma.c
+++ b/drivers/net/wireless/ath/wil6210/txrx_edma.c
@@ -234,9 +234,10 @@ static int wil_rx_refill_edma(struct wil6210_priv *wil)
 	struct wil_ring *ring = &wil->ring_rx;
 	u32 next_head;
 	int rc = 0;
-	u32 swtail = *ring->edma_rx_swtail.va;
+	ring->swtail = *ring->edma_rx_swtail.va;
 
-	for (; next_head = wil_ring_next_head(ring), (next_head != swtail);
+	for (; next_head = wil_ring_next_head(ring),
+	     (next_head != ring->swtail);
 	     ring->swhead = next_head) {
 		rc = wil_ring_alloc_skb_edma(wil, ring, ring->swhead);
 		if (unlikely(rc)) {
@@ -264,43 +265,26 @@ static void wil_move_all_rx_buff_to_free_list(struct wil6210_priv *wil,
 					      struct wil_ring *ring)
 {
 	struct device *dev = wil_to_dev(wil);
-	u32 next_tail;
-	u32 swhead = (ring->swhead + 1) % ring->size;
+	struct list_head *active = &wil->rx_buff_mgmt.active;
 	dma_addr_t pa;
-	u16 dmalen;
 
-	for (; next_tail = wil_ring_next_tail(ring), (next_tail != swhead);
-	     ring->swtail = next_tail) {
-		struct wil_rx_enhanced_desc dd, *d = &dd;
-		struct wil_rx_enhanced_desc *_d =
-			(struct wil_rx_enhanced_desc *)
-			&ring->va[ring->swtail].rx.enhanced;
-		struct sk_buff *skb;
-		u16 buff_id;
+	while (!list_empty(active)) {
+		struct wil_rx_buff *rx_buff =
+			list_first_entry(active, struct wil_rx_buff, list);
+		struct sk_buff *skb = rx_buff->skb;
 
-		*d = *_d;
-
-		/* Extract the SKB from the rx_buff management array */
-		buff_id = __le16_to_cpu(d->mac.buff_id);
-		if (buff_id >= wil->rx_buff_mgmt.size) {
-			wil_err(wil, "invalid buff_id %d\n", buff_id);
-			continue;
-		}
-		skb = wil->rx_buff_mgmt.buff_arr[buff_id].skb;
-		wil->rx_buff_mgmt.buff_arr[buff_id].skb = NULL;
 		if (unlikely(!skb)) {
-			wil_err(wil, "No Rx skb at buff_id %d\n", buff_id);
+			wil_err(wil, "No Rx skb at buff_id %d\n", rx_buff->id);
 		} else {
-			pa = wil_rx_desc_get_addr_edma(&d->dma);
-			dmalen = le16_to_cpu(d->dma.length);
-			dma_unmap_single(dev, pa, dmalen, DMA_FROM_DEVICE);
-
+			rx_buff->skb = NULL;
+			memcpy(&pa, skb->cb, sizeof(pa));
+			dma_unmap_single(dev, pa, wil->rx_buf_len,
+					 DMA_FROM_DEVICE);
 			kfree_skb(skb);
 		}
 
 		/* Move the buffer from the active to the free list */
-		list_move(&wil->rx_buff_mgmt.buff_arr[buff_id].list,
-			  &wil->rx_buff_mgmt.free);
+		list_move(&rx_buff->list, &wil->rx_buff_mgmt.free);
 	}
 }
 

From dc57731dbd535880fe6ced31c229262c34df7d64 Mon Sep 17 00:00:00 2001
From: Lior David <liord@codeaurora.org>
Date: Wed, 31 Oct 2018 10:52:24 +0200
Subject: [PATCH 032/124] wil6210: fix locking in wmi_call

Switch from spin_lock to spin_lock_irqsave, because
wmi_ev_lock is used inside interrupt handler.

Signed-off-by: Lior David <liord@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/wil6210/wmi.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/ath/wil6210/wmi.c b/drivers/net/wireless/ath/wil6210/wmi.c
index f46c703ca570..345f05969190 100644
--- a/drivers/net/wireless/ath/wil6210/wmi.c
+++ b/drivers/net/wireless/ath/wil6210/wmi.c
@@ -1966,16 +1966,17 @@ int wmi_call(struct wil6210_priv *wil, u16 cmdid, u8 mid, void *buf, u16 len,
 {
 	int rc;
 	unsigned long remain;
+	ulong flags;
 
 	mutex_lock(&wil->wmi_mutex);
 
-	spin_lock(&wil->wmi_ev_lock);
+	spin_lock_irqsave(&wil->wmi_ev_lock, flags);
 	wil->reply_id = reply_id;
 	wil->reply_mid = mid;
 	wil->reply_buf = reply;
 	wil->reply_size = reply_size;
 	reinit_completion(&wil->wmi_call);
-	spin_unlock(&wil->wmi_ev_lock);
+	spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
 
 	rc = __wmi_send(wil, cmdid, mid, buf, len);
 	if (rc)
@@ -1995,12 +1996,12 @@ int wmi_call(struct wil6210_priv *wil, u16 cmdid, u8 mid, void *buf, u16 len,
 	}
 
 out:
-	spin_lock(&wil->wmi_ev_lock);
+	spin_lock_irqsave(&wil->wmi_ev_lock, flags);
 	wil->reply_id = 0;
 	wil->reply_mid = U8_MAX;
 	wil->reply_buf = NULL;
 	wil->reply_size = 0;
-	spin_unlock(&wil->wmi_ev_lock);
+	spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
 
 	mutex_unlock(&wil->wmi_mutex);
 

From 887a3dcf589389756bad51b34b69d4e9e9b2aa86 Mon Sep 17 00:00:00 2001
From: Brian Norris <briannorris@chromium.org>
Date: Mon, 5 Nov 2018 14:34:46 +0200
Subject: [PATCH 033/124] ath10k: snoc: remove 'wcn3990' from generic resource
 handling

ath10k_wcn3990_clk_info and ath10k_wcn3990_vreg_info are not
WCN3990-specific structures. They hold generic data. So don't name them
with wcn3990 specifics.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/ath10k/snoc.c | 34 +++++++++++++-------------
 drivers/net/wireless/ath/ath10k/snoc.h |  8 +++---
 2 files changed, 21 insertions(+), 21 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/snoc.c b/drivers/net/wireless/ath/ath10k/snoc.c
index 98724d04baef..5ee0fb7beeee 100644
--- a/drivers/net/wireless/ath/ath10k/snoc.c
+++ b/drivers/net/wireless/ath/ath10k/snoc.c
@@ -46,14 +46,14 @@ static char *const ce_name[] = {
 	"WLAN_CE_11",
 };
 
-static struct ath10k_wcn3990_vreg_info vreg_cfg[] = {
+static struct ath10k_vreg_info vreg_cfg[] = {
 	{NULL, "vdd-0.8-cx-mx", 800000, 800000, 0, 0, false},
 	{NULL, "vdd-1.8-xo", 1800000, 1800000, 0, 0, false},
 	{NULL, "vdd-1.3-rfa", 1304000, 1304000, 0, 0, false},
 	{NULL, "vdd-3.3-ch0", 3312000, 3312000, 0, 0, false},
 };
 
-static struct ath10k_wcn3990_clk_info clk_cfg[] = {
+static struct ath10k_clk_info clk_cfg[] = {
 	{NULL, "cxo_ref_clk_pin", 0, false},
 };
 
@@ -1270,7 +1270,7 @@ static void ath10k_snoc_release_resource(struct ath10k *ar)
 }
 
 static int ath10k_get_vreg_info(struct ath10k *ar, struct device *dev,
-				struct ath10k_wcn3990_vreg_info *vreg_info)
+				struct ath10k_vreg_info *vreg_info)
 {
 	struct regulator *reg;
 	int ret = 0;
@@ -1308,7 +1308,7 @@ static int ath10k_get_vreg_info(struct ath10k *ar, struct device *dev,
 }
 
 static int ath10k_get_clk_info(struct ath10k *ar, struct device *dev,
-			       struct ath10k_wcn3990_clk_info *clk_info)
+			       struct ath10k_clk_info *clk_info)
 {
 	struct clk *handle;
 	int ret = 0;
@@ -1335,10 +1335,10 @@ static int ath10k_get_clk_info(struct ath10k *ar, struct device *dev,
 	return ret;
 }
 
-static int ath10k_wcn3990_vreg_on(struct ath10k *ar)
+static int ath10k_snoc_vreg_on(struct ath10k *ar)
 {
 	struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
-	struct ath10k_wcn3990_vreg_info *vreg_info;
+	struct ath10k_vreg_info *vreg_info;
 	int ret = 0;
 	int i;
 
@@ -1400,10 +1400,10 @@ static int ath10k_wcn3990_vreg_on(struct ath10k *ar)
 	return ret;
 }
 
-static int ath10k_wcn3990_vreg_off(struct ath10k *ar)
+static int ath10k_snoc_vreg_off(struct ath10k *ar)
 {
 	struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
-	struct ath10k_wcn3990_vreg_info *vreg_info;
+	struct ath10k_vreg_info *vreg_info;
 	int ret = 0;
 	int i;
 
@@ -1436,10 +1436,10 @@ static int ath10k_wcn3990_vreg_off(struct ath10k *ar)
 	return ret;
 }
 
-static int ath10k_wcn3990_clk_init(struct ath10k *ar)
+static int ath10k_snoc_clk_init(struct ath10k *ar)
 {
 	struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
-	struct ath10k_wcn3990_clk_info *clk_info;
+	struct ath10k_clk_info *clk_info;
 	int ret = 0;
 	int i;
 
@@ -1485,10 +1485,10 @@ static int ath10k_wcn3990_clk_init(struct ath10k *ar)
 	return ret;
 }
 
-static int ath10k_wcn3990_clk_deinit(struct ath10k *ar)
+static int ath10k_snoc_clk_deinit(struct ath10k *ar)
 {
 	struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
-	struct ath10k_wcn3990_clk_info *clk_info;
+	struct ath10k_clk_info *clk_info;
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(clk_cfg); i++) {
@@ -1512,18 +1512,18 @@ static int ath10k_hw_power_on(struct ath10k *ar)
 
 	ath10k_dbg(ar, ATH10K_DBG_SNOC, "soc power on\n");
 
-	ret = ath10k_wcn3990_vreg_on(ar);
+	ret = ath10k_snoc_vreg_on(ar);
 	if (ret)
 		return ret;
 
-	ret = ath10k_wcn3990_clk_init(ar);
+	ret = ath10k_snoc_clk_init(ar);
 	if (ret)
 		goto vreg_off;
 
 	return ret;
 
 vreg_off:
-	ath10k_wcn3990_vreg_off(ar);
+	ath10k_snoc_vreg_off(ar);
 	return ret;
 }
 
@@ -1533,9 +1533,9 @@ static int ath10k_hw_power_off(struct ath10k *ar)
 
 	ath10k_dbg(ar, ATH10K_DBG_SNOC, "soc power off\n");
 
-	ath10k_wcn3990_clk_deinit(ar);
+	ath10k_snoc_clk_deinit(ar);
 
-	ret = ath10k_wcn3990_vreg_off(ar);
+	ret = ath10k_snoc_vreg_off(ar);
 
 	return ret;
 }
diff --git a/drivers/net/wireless/ath/ath10k/snoc.h b/drivers/net/wireless/ath/ath10k/snoc.h
index 3a44e30696bc..d0fcf99a8eca 100644
--- a/drivers/net/wireless/ath/ath10k/snoc.h
+++ b/drivers/net/wireless/ath/ath10k/snoc.h
@@ -53,7 +53,7 @@ struct ath10k_snoc_ce_irq {
 	u32 irq_line;
 };
 
-struct ath10k_wcn3990_vreg_info {
+struct ath10k_vreg_info {
 	struct regulator *reg;
 	const char *name;
 	u32 min_v;
@@ -63,7 +63,7 @@ struct ath10k_wcn3990_vreg_info {
 	bool required;
 };
 
-struct ath10k_wcn3990_clk_info {
+struct ath10k_clk_info {
 	struct clk *handle;
 	const char *name;
 	u32 freq;
@@ -87,8 +87,8 @@ struct ath10k_snoc {
 	struct ath10k_snoc_ce_irq ce_irqs[CE_COUNT_MAX];
 	struct ath10k_ce ce;
 	struct timer_list rx_post_retry;
-	struct ath10k_wcn3990_vreg_info *vreg;
-	struct ath10k_wcn3990_clk_info *clk;
+	struct ath10k_vreg_info *vreg;
+	struct ath10k_clk_info *clk;
 	struct ath10k_qmi *qmi;
 	unsigned long int flags;
 };

From 1a1a0d5ccefca6f3f7417b448793c753a610da0c Mon Sep 17 00:00:00 2001
From: Brian Norris <briannorris@chromium.org>
Date: Mon, 5 Nov 2018 14:34:57 +0200
Subject: [PATCH 034/124] ath10k: snoc: fix unabalanced regulator error
 handling

If a regulator fails to set its voltage, we end up with an unbalanced
call to regulator_disable(), because the error path starts with the
current regulator (which was never enabled).

Factor out the "on" function to perform (and unwind if failed) a single
regulator at a time, and then main loop (ath10k_snoc_vreg_on()) can just
worry about unwinding the regulators that were already enabled.

It also helps to factor out the "off" function, to avoid repeating some
code here.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/ath10k/snoc.c | 129 ++++++++++++++-----------
 1 file changed, 75 insertions(+), 54 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/snoc.c b/drivers/net/wireless/ath/ath10k/snoc.c
index 5ee0fb7beeee..69bcf132a9bf 100644
--- a/drivers/net/wireless/ath/ath10k/snoc.c
+++ b/drivers/net/wireless/ath/ath10k/snoc.c
@@ -1335,6 +1335,76 @@ static int ath10k_get_clk_info(struct ath10k *ar, struct device *dev,
 	return ret;
 }
 
+static int __ath10k_snoc_vreg_on(struct ath10k *ar,
+				 struct ath10k_vreg_info *vreg_info)
+{
+	int ret;
+
+	ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc regulator %s being enabled\n",
+		   vreg_info->name);
+
+	ret = regulator_set_voltage(vreg_info->reg, vreg_info->min_v,
+				    vreg_info->max_v);
+	if (ret) {
+		ath10k_err(ar,
+			   "failed to set regulator %s voltage-min: %d voltage-max: %d\n",
+			   vreg_info->name, vreg_info->min_v, vreg_info->max_v);
+		return ret;
+	}
+
+	if (vreg_info->load_ua) {
+		ret = regulator_set_load(vreg_info->reg, vreg_info->load_ua);
+		if (ret < 0) {
+			ath10k_err(ar, "failed to set regulator %s load: %d\n",
+				   vreg_info->name, vreg_info->load_ua);
+			goto err_set_load;
+		}
+	}
+
+	ret = regulator_enable(vreg_info->reg);
+	if (ret) {
+		ath10k_err(ar, "failed to enable regulator %s\n",
+			   vreg_info->name);
+		goto err_enable;
+	}
+
+	if (vreg_info->settle_delay)
+		udelay(vreg_info->settle_delay);
+
+	return 0;
+
+err_enable:
+	regulator_set_load(vreg_info->reg, 0);
+err_set_load:
+	regulator_set_voltage(vreg_info->reg, 0, vreg_info->max_v);
+
+	return ret;
+}
+
+static int __ath10k_snoc_vreg_off(struct ath10k *ar,
+				  struct ath10k_vreg_info *vreg_info)
+{
+	int ret;
+
+	ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc regulator %s being disabled\n",
+		   vreg_info->name);
+
+	ret = regulator_disable(vreg_info->reg);
+	if (ret)
+		ath10k_err(ar, "failed to disable regulator %s\n",
+			   vreg_info->name);
+
+	ret = regulator_set_load(vreg_info->reg, 0);
+	if (ret < 0)
+		ath10k_err(ar, "failed to set load %s\n", vreg_info->name);
+
+	ret = regulator_set_voltage(vreg_info->reg, 0, vreg_info->max_v);
+	if (ret)
+		ath10k_err(ar, "failed to set voltage %s\n", vreg_info->name);
+
+	return ret;
+}
+
 static int ath10k_snoc_vreg_on(struct ath10k *ar)
 {
 	struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
@@ -1348,53 +1418,21 @@ static int ath10k_snoc_vreg_on(struct ath10k *ar)
 		if (!vreg_info->reg)
 			continue;
 
-		ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc regulator %s being enabled\n",
-			   vreg_info->name);
-
-		ret = regulator_set_voltage(vreg_info->reg, vreg_info->min_v,
-					    vreg_info->max_v);
-		if (ret) {
-			ath10k_err(ar,
-				   "failed to set regulator %s voltage-min: %d voltage-max: %d\n",
-				   vreg_info->name, vreg_info->min_v, vreg_info->max_v);
+		ret = __ath10k_snoc_vreg_on(ar, vreg_info);
+		if (ret)
 			goto err_reg_config;
-		}
-
-		if (vreg_info->load_ua) {
-			ret = regulator_set_load(vreg_info->reg,
-						 vreg_info->load_ua);
-			if (ret < 0) {
-				ath10k_err(ar,
-					   "failed to set regulator %s load: %d\n",
-					   vreg_info->name,
-					   vreg_info->load_ua);
-				goto err_reg_config;
-			}
-		}
-
-		ret = regulator_enable(vreg_info->reg);
-		if (ret) {
-			ath10k_err(ar, "failed to enable regulator %s\n",
-				   vreg_info->name);
-			goto err_reg_config;
-		}
-
-		if (vreg_info->settle_delay)
-			udelay(vreg_info->settle_delay);
 	}
 
 	return 0;
 
 err_reg_config:
-	for (; i >= 0; i--) {
+	for (i = i - 1; i >= 0; i--) {
 		vreg_info = &ar_snoc->vreg[i];
 
 		if (!vreg_info->reg)
 			continue;
 
-		regulator_disable(vreg_info->reg);
-		regulator_set_load(vreg_info->reg, 0);
-		regulator_set_voltage(vreg_info->reg, 0, vreg_info->max_v);
+		__ath10k_snoc_vreg_off(ar, vreg_info);
 	}
 
 	return ret;
@@ -1413,24 +1451,7 @@ static int ath10k_snoc_vreg_off(struct ath10k *ar)
 		if (!vreg_info->reg)
 			continue;
 
-		ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc regulator %s being disabled\n",
-			   vreg_info->name);
-
-		ret = regulator_disable(vreg_info->reg);
-		if (ret)
-			ath10k_err(ar, "failed to disable regulator %s\n",
-				   vreg_info->name);
-
-		ret = regulator_set_load(vreg_info->reg, 0);
-		if (ret < 0)
-			ath10k_err(ar, "failed to set load %s\n",
-				   vreg_info->name);
-
-		ret = regulator_set_voltage(vreg_info->reg, 0,
-					    vreg_info->max_v);
-		if (ret)
-			ath10k_err(ar, "failed to set voltage %s\n",
-				   vreg_info->name);
+		ret = __ath10k_snoc_vreg_off(ar, vreg_info);
 	}
 
 	return ret;

From bfe57a6ac75aec73aec43ca24942d7704100fc2c Mon Sep 17 00:00:00 2001
From: Brian Norris <briannorris@chromium.org>
Date: Mon, 5 Nov 2018 14:35:09 +0200
Subject: [PATCH 035/124] ath10k: snoc: relax voltage requirements

I rarely see drivers specify precise voltage requirements like this, but
if we really have to...let's at least give a little wiggle room. Board
designs (and accompanying device trees) may not provide exactly the
voltage listed here, and we shouldn't fail to probe just because of
this.

Round these ranges down to the nearest volt, and provide a 0.05V margin.
The regulator should provide its own supported ranges, which will
helpfully intersect with these ranges.

I would just as well remove these ranges entirely, but if I understand
correctly, there's some reason that QCOM SoC's like to set zero /
non-zero voltages.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/ath10k/snoc.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/snoc.c b/drivers/net/wireless/ath/ath10k/snoc.c
index 69bcf132a9bf..48292ed7d494 100644
--- a/drivers/net/wireless/ath/ath10k/snoc.c
+++ b/drivers/net/wireless/ath/ath10k/snoc.c
@@ -47,10 +47,10 @@ static char *const ce_name[] = {
 };
 
 static struct ath10k_vreg_info vreg_cfg[] = {
-	{NULL, "vdd-0.8-cx-mx", 800000, 800000, 0, 0, false},
-	{NULL, "vdd-1.8-xo", 1800000, 1800000, 0, 0, false},
-	{NULL, "vdd-1.3-rfa", 1304000, 1304000, 0, 0, false},
-	{NULL, "vdd-3.3-ch0", 3312000, 3312000, 0, 0, false},
+	{NULL, "vdd-0.8-cx-mx", 800000, 850000, 0, 0, false},
+	{NULL, "vdd-1.8-xo", 1800000, 1850000, 0, 0, false},
+	{NULL, "vdd-1.3-rfa", 1300000, 1350000, 0, 0, false},
+	{NULL, "vdd-3.3-ch0", 3300000, 3350000, 0, 0, false},
 };
 
 static struct ath10k_clk_info clk_cfg[] = {

From 82e60d920e8ad70cd9a280ab156566755f1fe4aa Mon Sep 17 00:00:00 2001
From: Brian Norris <briannorris@chromium.org>
Date: Mon, 5 Nov 2018 14:35:22 +0200
Subject: [PATCH 036/124] ath10k: snoc: fix unbalanced clock error handling

Similar to regulator error handling, we should only start tearing down
the 'i - 1' clock when clock 'i' fails to enable. Otherwise, we might
end up with an unbalanced clock, where we never successfully enabled the
clock, but we try to disable it anyway.

Fixes: a6a793f98786 ("ath10k: vote for hardware resources for WCN3990")
Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/ath10k/snoc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/snoc.c b/drivers/net/wireless/ath/ath10k/snoc.c
index 48292ed7d494..81b86a787c34 100644
--- a/drivers/net/wireless/ath/ath10k/snoc.c
+++ b/drivers/net/wireless/ath/ath10k/snoc.c
@@ -1494,7 +1494,7 @@ static int ath10k_snoc_clk_init(struct ath10k *ar)
 	return 0;
 
 err_clock_config:
-	for (; i >= 0; i--) {
+	for (i = i - 1; i >= 0; i--) {
 		clk_info = &ar_snoc->clk[i];
 
 		if (!clk_info->handle)

From 97b9608be34f9fcad3d4aa79ea7b8720680b232d Mon Sep 17 00:00:00 2001
From: Brian Norris <briannorris@chromium.org>
Date: Fri, 2 Nov 2018 11:10:00 -0700
Subject: [PATCH 037/124] ath10k: ath10k_snoc_{read,write}32() should be static

They're provided as callbacks in ath10k_hif_ops and should be accessed
that way, if needed outside of snoc.c, and anyway, they're currently
unused outside snoc.c.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/ath10k/snoc.c | 4 ++--
 drivers/net/wireless/ath/ath10k/snoc.h | 2 --
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/snoc.c b/drivers/net/wireless/ath/ath10k/snoc.c
index 81b86a787c34..85116986161c 100644
--- a/drivers/net/wireless/ath/ath10k/snoc.c
+++ b/drivers/net/wireless/ath/ath10k/snoc.c
@@ -474,14 +474,14 @@ static struct service_to_pipe target_service_to_ce_map_wlan[] = {
 	},
 };
 
-void ath10k_snoc_write32(struct ath10k *ar, u32 offset, u32 value)
+static void ath10k_snoc_write32(struct ath10k *ar, u32 offset, u32 value)
 {
 	struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
 
 	iowrite32(value, ar_snoc->mem + offset);
 }
 
-u32 ath10k_snoc_read32(struct ath10k *ar, u32 offset)
+static u32 ath10k_snoc_read32(struct ath10k *ar, u32 offset)
 {
 	struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
 	u32 val;
diff --git a/drivers/net/wireless/ath/ath10k/snoc.h b/drivers/net/wireless/ath/ath10k/snoc.h
index d0fcf99a8eca..2b2f23cf7c5d 100644
--- a/drivers/net/wireless/ath/ath10k/snoc.h
+++ b/drivers/net/wireless/ath/ath10k/snoc.h
@@ -98,8 +98,6 @@ static inline struct ath10k_snoc *ath10k_snoc_priv(struct ath10k *ar)
 	return (struct ath10k_snoc *)ar->drv_priv;
 }
 
-void ath10k_snoc_write32(struct ath10k *ar, u32 offset, u32 value);
-u32 ath10k_snoc_read32(struct ath10k *ar, u32 offset);
 int ath10k_snoc_fw_indication(struct ath10k *ar, u64 type);
 
 #endif /* _SNOC_H_ */

From 2bd345cd2bfc0bd44528896313c0b45f087bdf67 Mon Sep 17 00:00:00 2001
From: Brian Norris <briannorris@chromium.org>
Date: Fri, 2 Nov 2018 10:17:47 -0700
Subject: [PATCH 038/124] ath10k: assign 'n_cipher_suites' for WCN3990

Commit 2ea9f12cefe4 ("ath10k: add new cipher suite support") added a new
n_cipher_suites HW param with a fallback value and a warning log. Commit
03a72288c546 ("ath10k: wmi: add hw params entry for wcn3990") later
added WCN3990 HW entries, but it missed the n_cipher_suites.

Rather than seeing this warning every boot

  ath10k_snoc 18800000.wifi: invalid hw_params.n_cipher_suites 0

let's provide the appropriate value.

Cc: Rakesh Pillai <pillair@qti.qualcomm.com>
Cc: Govind Singh <govinds@qti.qualcomm.com>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/ath10k/core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 9d0b3515989a..22cbe9a2e646 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -561,6 +561,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
 		.hw_ops = &wcn3990_ops,
 		.decap_align_bytes = 1,
 		.num_peers = TARGET_HL_10_TLV_NUM_PEERS,
+		.n_cipher_suites = 8,
 		.ast_skid_limit = TARGET_HL_10_TLV_AST_SKID_LIMIT,
 		.num_wds_entries = TARGET_HL_10_TLV_NUM_WDS_ENTRIES,
 		.target_64bit = true,

From 79169f14865503fb3c1571ae3f9c456c3ca74865 Mon Sep 17 00:00:00 2001
From: Brian Norris <briannorris@chromium.org>
Date: Fri, 2 Nov 2018 10:17:48 -0700
Subject: [PATCH 039/124] ath10k: don't assume this is a PCI dev in generic
 code

Not all devices using this driver are backed by a PCI device, so it's
not fair to assume 'to_pci_dev()' is valid. Fortunately, we only were
using this to convert straight back to a bare 'device', which means we
were only doing no-op pointer arithmetic, and not actually accessing
potentially out-of-bounds memory. But this is still bad practice.

Just use 'ar->dev' directly, since that's really all we're looking for.

Fixes: 209b2a68de76 ("ath10k: add platform regulatory domain support")
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/ath10k/mac.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 2b8c8bf80b0d..c5130fa264eb 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -8317,7 +8317,6 @@ static u32 ath10k_mac_wrdd_get_mcc(struct ath10k *ar, union acpi_object *wrdd)
 
 static int ath10k_mac_get_wrdd_regulatory(struct ath10k *ar, u16 *rd)
 {
-	struct pci_dev __maybe_unused *pdev = to_pci_dev(ar->dev);
 	acpi_handle root_handle;
 	acpi_handle handle;
 	struct acpi_buffer wrdd = {ACPI_ALLOCATE_BUFFER, NULL};
@@ -8325,7 +8324,7 @@ static int ath10k_mac_get_wrdd_regulatory(struct ath10k *ar, u16 *rd)
 	u32 alpha2_code;
 	char alpha2[3];
 
-	root_handle = ACPI_HANDLE(&pdev->dev);
+	root_handle = ACPI_HANDLE(ar->dev);
 	if (!root_handle)
 		return -EOPNOTSUPP;
 

From cea04e3d8e3727185f9ebe736045655b30ff9079 Mon Sep 17 00:00:00 2001
From: Brian Norris <briannorris@chromium.org>
Date: Fri, 2 Nov 2018 10:17:49 -0700
Subject: [PATCH 040/124] ath10k: fix struct init whitespace in SNOC driver

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/ath10k/snoc.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/snoc.c b/drivers/net/wireless/ath/ath10k/snoc.c
index 85116986161c..dad7e1ce79c0 100644
--- a/drivers/net/wireless/ath/ath10k/snoc.c
+++ b/drivers/net/wireless/ath/ath10k/snoc.c
@@ -1695,12 +1695,12 @@ static int ath10k_snoc_remove(struct platform_device *pdev)
 }
 
 static struct platform_driver ath10k_snoc_driver = {
-		.probe  = ath10k_snoc_probe,
-		.remove = ath10k_snoc_remove,
-		.driver = {
-			.name   = "ath10k_snoc",
-			.of_match_table = ath10k_snoc_dt_match,
-		},
+	.probe  = ath10k_snoc_probe,
+	.remove = ath10k_snoc_remove,
+	.driver = {
+		.name   = "ath10k_snoc",
+		.of_match_table = ath10k_snoc_dt_match,
+	},
 };
 module_platform_driver(ath10k_snoc_driver);
 

From 3831a2a0010c72e3956020cbf1057a1701a2e469 Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Date: Fri, 2 Nov 2018 21:49:55 +0100
Subject: [PATCH 041/124] ath9k: dynack: use authentication messages for 'late'
 ack

In order to properly support dynack in ad-hoc mode running
wpa_supplicant, take into account authentication frames for
'late ack' detection. This patch has been tested on devices
mounted on offshore high-voltage stations connected through
~24Km link

Reported-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Tested-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/ath9k/dynack.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath9k/dynack.c b/drivers/net/wireless/ath/ath9k/dynack.c
index 7334c9b09e82..cc0dc966c512 100644
--- a/drivers/net/wireless/ath/ath9k/dynack.c
+++ b/drivers/net/wireless/ath/ath9k/dynack.c
@@ -187,7 +187,8 @@ void ath_dynack_sample_tx_ts(struct ath_hw *ah, struct sk_buff *skb,
 	/* late ACK */
 	if (ts->ts_status & ATH9K_TXERR_XRETRY) {
 		if (ieee80211_is_assoc_req(hdr->frame_control) ||
-		    ieee80211_is_assoc_resp(hdr->frame_control)) {
+		    ieee80211_is_assoc_resp(hdr->frame_control) ||
+		    ieee80211_is_auth(hdr->frame_control)) {
 			ath_dbg(common, DYNACK, "late ack\n");
 			ath9k_hw_setslottime(ah, (LATEACK_TO - 3) / 2);
 			ath9k_hw_set_ack_timeout(ah, LATEACK_TO);

From 5e3d4718b1574c8634b45965307dee20a6c921a1 Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Date: Fri, 2 Nov 2018 21:49:56 +0100
Subject: [PATCH 042/124] ath9k: dynack: move debug log after buffer increments

Move debug log in ath_dynack_sample_tx_ts and ath_dynack_sample_ack_ts
after timestamp buffer head/tail increments in order to make debugging
more user friendly

Tested-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/ath9k/dynack.c | 26 ++++++++++++-------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/dynack.c b/drivers/net/wireless/ath/ath9k/dynack.c
index cc0dc966c512..5c969d833825 100644
--- a/drivers/net/wireless/ath/ath9k/dynack.c
+++ b/drivers/net/wireless/ath/ath9k/dynack.c
@@ -171,11 +171,12 @@ static void ath_dynack_compute_to(struct ath_hw *ah)
 void ath_dynack_sample_tx_ts(struct ath_hw *ah, struct sk_buff *skb,
 			     struct ath_tx_status *ts)
 {
-	u8 ridx;
 	struct ieee80211_hdr *hdr;
 	struct ath_dynack *da = &ah->dynack;
 	struct ath_common *common = ath9k_hw_common(ah);
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+	u32 dur = ts->duration;
+	u8 ridx;
 
 	if ((info->flags & IEEE80211_TX_CTL_NO_ACK) || !da->enabled)
 		return;
@@ -203,14 +204,13 @@ void ath_dynack_sample_tx_ts(struct ath_hw *ah, struct sk_buff *skb,
 	ridx = ts->ts_rateindex;
 
 	da->st_rbf.ts[da->st_rbf.t_rb].tstamp = ts->ts_tstamp;
-	da->st_rbf.ts[da->st_rbf.t_rb].dur = ts->duration;
 	ether_addr_copy(da->st_rbf.addr[da->st_rbf.t_rb].h_dest, hdr->addr1);
 	ether_addr_copy(da->st_rbf.addr[da->st_rbf.t_rb].h_src, hdr->addr2);
 
 	if (!(info->status.rates[ridx].flags & IEEE80211_TX_RC_MCS)) {
-		u32 phy, sifs;
 		const struct ieee80211_rate *rate;
 		struct ieee80211_tx_rate *rates = info->status.rates;
+		u32 phy;
 
 		rate = &common->sbands[info->band].bitrates[rates[ridx].idx];
 		if (info->band == NL80211_BAND_2GHZ &&
@@ -219,19 +219,18 @@ void ath_dynack_sample_tx_ts(struct ath_hw *ah, struct sk_buff *skb,
 		else
 			phy = WLAN_RC_PHY_OFDM;
 
-		sifs = ath_dynack_get_sifs(ah, phy);
-		da->st_rbf.ts[da->st_rbf.t_rb].dur -= sifs;
+		dur -= ath_dynack_get_sifs(ah, phy);
 	}
-
-	ath_dbg(common, DYNACK, "{%pM} tx sample %u [dur %u][h %u-t %u]\n",
-		hdr->addr1, da->st_rbf.ts[da->st_rbf.t_rb].tstamp,
-		da->st_rbf.ts[da->st_rbf.t_rb].dur, da->st_rbf.h_rb,
-		(da->st_rbf.t_rb + 1) % ATH_DYN_BUF);
+	da->st_rbf.ts[da->st_rbf.t_rb].dur = dur;
 
 	INCR(da->st_rbf.t_rb, ATH_DYN_BUF);
 	if (da->st_rbf.t_rb == da->st_rbf.h_rb)
 		INCR(da->st_rbf.h_rb, ATH_DYN_BUF);
 
+	ath_dbg(common, DYNACK, "{%pM} tx sample %u [dur %u][h %u-t %u]\n",
+		hdr->addr1, ts->ts_tstamp, dur, da->st_rbf.h_rb,
+		da->st_rbf.t_rb);
+
 	ath_dynack_compute_to(ah);
 
 	spin_unlock_bh(&da->qlock);
@@ -258,14 +257,13 @@ void ath_dynack_sample_ack_ts(struct ath_hw *ah, struct sk_buff *skb,
 	spin_lock_bh(&da->qlock);
 	da->ack_rbf.tstamp[da->ack_rbf.t_rb] = ts;
 
-	ath_dbg(common, DYNACK, "rx sample %u [h %u-t %u]\n",
-		da->ack_rbf.tstamp[da->ack_rbf.t_rb],
-		da->ack_rbf.h_rb, (da->ack_rbf.t_rb + 1) % ATH_DYN_BUF);
-
 	INCR(da->ack_rbf.t_rb, ATH_DYN_BUF);
 	if (da->ack_rbf.t_rb == da->ack_rbf.h_rb)
 		INCR(da->ack_rbf.h_rb, ATH_DYN_BUF);
 
+	ath_dbg(common, DYNACK, "rx sample %u [h %u-t %u]\n",
+		ts, da->ack_rbf.h_rb, da->ack_rbf.t_rb);
+
 	ath_dynack_compute_to(ah);
 
 	spin_unlock_bh(&da->qlock);

From 9d3d65a91f027b8a9af5e63752d9b78cb10eb92d Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Date: Fri, 2 Nov 2018 21:49:57 +0100
Subject: [PATCH 043/124] ath9k: dynack: check da->enabled first in sampling
 routines

Check da->enabled flag first in ath_dynack_sample_tx_ts and
ath_dynack_sample_ack_ts routines in order to avoid useless
processing

Tested-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/ath9k/dynack.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/dynack.c b/drivers/net/wireless/ath/ath9k/dynack.c
index 5c969d833825..5c3b32f4e61b 100644
--- a/drivers/net/wireless/ath/ath9k/dynack.c
+++ b/drivers/net/wireless/ath/ath9k/dynack.c
@@ -178,7 +178,7 @@ void ath_dynack_sample_tx_ts(struct ath_hw *ah, struct sk_buff *skb,
 	u32 dur = ts->duration;
 	u8 ridx;
 
-	if ((info->flags & IEEE80211_TX_CTL_NO_ACK) || !da->enabled)
+	if (!da->enabled || (info->flags & IEEE80211_TX_CTL_NO_ACK))
 		return;
 
 	spin_lock_bh(&da->qlock);
@@ -251,7 +251,7 @@ void ath_dynack_sample_ack_ts(struct ath_hw *ah, struct sk_buff *skb,
 	struct ath_common *common = ath9k_hw_common(ah);
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
 
-	if (!ath_dynack_bssidmask(ah, hdr->addr1) || !da->enabled)
+	if (!da->enabled || !ath_dynack_bssidmask(ah, hdr->addr1))
 		return;
 
 	spin_lock_bh(&da->qlock);

From 0c60c490830a1a756c80f8de8d33d9c6359d4a36 Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Date: Fri, 2 Nov 2018 21:49:58 +0100
Subject: [PATCH 044/124] ath9k: dynack: make ewma estimation faster

In order to make propagation time estimation faster,
use current sample as ewma output value during 'late ack'
tracking

Tested-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/ath9k/ath9k.h  |  2 +-
 drivers/net/wireless/ath/ath9k/dynack.c | 28 ++++++++++++++++++-------
 drivers/net/wireless/ath/ath9k/dynack.h |  6 ++++--
 drivers/net/wireless/ath/ath9k/xmit.c   |  5 +++--
 4 files changed, 29 insertions(+), 12 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 21ba20981a80..0fca44e91a71 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -272,7 +272,7 @@ struct ath_node {
 #endif
 	u8 key_idx[4];
 
-	u32 ackto;
+	int ackto;
 	struct list_head list;
 };
 
diff --git a/drivers/net/wireless/ath/ath9k/dynack.c b/drivers/net/wireless/ath/ath9k/dynack.c
index 5c3b32f4e61b..f112fa5b2eac 100644
--- a/drivers/net/wireless/ath/ath9k/dynack.c
+++ b/drivers/net/wireless/ath/ath9k/dynack.c
@@ -29,9 +29,13 @@
  * ath_dynack_ewma - EWMA (Exponentially Weighted Moving Average) calculation
  *
  */
-static inline u32 ath_dynack_ewma(u32 old, u32 new)
+static inline int ath_dynack_ewma(int old, int new)
 {
-	return (new * (EWMA_DIV - EWMA_LEVEL) + old * EWMA_LEVEL) / EWMA_DIV;
+	if (old > 0)
+		return (new * (EWMA_DIV - EWMA_LEVEL) +
+			old * EWMA_LEVEL) / EWMA_DIV;
+	else
+		return new;
 }
 
 /**
@@ -82,10 +86,10 @@ static inline bool ath_dynack_bssidmask(struct ath_hw *ah, const u8 *mac)
  */
 static void ath_dynack_compute_ackto(struct ath_hw *ah)
 {
-	struct ath_node *an;
-	u32 to = 0;
-	struct ath_dynack *da = &ah->dynack;
 	struct ath_common *common = ath9k_hw_common(ah);
+	struct ath_dynack *da = &ah->dynack;
+	struct ath_node *an;
+	int to = 0;
 
 	list_for_each_entry(an, &da->nodes, list)
 		if (an->ackto > to)
@@ -144,7 +148,8 @@ static void ath_dynack_compute_to(struct ath_hw *ah)
 					an->ackto = ath_dynack_ewma(an->ackto,
 								    ackto);
 					ath_dbg(ath9k_hw_common(ah), DYNACK,
-						"%pM to %u\n", dst, an->ackto);
+						"%pM to %d [%u]\n", dst,
+						an->ackto, ackto);
 					if (time_is_before_jiffies(da->lto)) {
 						ath_dynack_compute_ackto(ah);
 						da->lto = jiffies + COMPUTE_TO;
@@ -166,10 +171,12 @@ static void ath_dynack_compute_to(struct ath_hw *ah)
  * @ah: ath hw
  * @skb: socket buffer
  * @ts: tx status info
+ * @sta: station pointer
  *
  */
 void ath_dynack_sample_tx_ts(struct ath_hw *ah, struct sk_buff *skb,
-			     struct ath_tx_status *ts)
+			     struct ath_tx_status *ts,
+			     struct ieee80211_sta *sta)
 {
 	struct ieee80211_hdr *hdr;
 	struct ath_dynack *da = &ah->dynack;
@@ -191,9 +198,16 @@ void ath_dynack_sample_tx_ts(struct ath_hw *ah, struct sk_buff *skb,
 		    ieee80211_is_assoc_resp(hdr->frame_control) ||
 		    ieee80211_is_auth(hdr->frame_control)) {
 			ath_dbg(common, DYNACK, "late ack\n");
+
 			ath9k_hw_setslottime(ah, (LATEACK_TO - 3) / 2);
 			ath9k_hw_set_ack_timeout(ah, LATEACK_TO);
 			ath9k_hw_set_cts_timeout(ah, LATEACK_TO);
+			if (sta) {
+				struct ath_node *an;
+
+				an = (struct ath_node *)sta->drv_priv;
+				an->ackto = -1;
+			}
 			da->lto = jiffies + LATEACK_DELAY;
 		}
 
diff --git a/drivers/net/wireless/ath/ath9k/dynack.h b/drivers/net/wireless/ath/ath9k/dynack.h
index 6d7bef976742..cf60224d40df 100644
--- a/drivers/net/wireless/ath/ath9k/dynack.h
+++ b/drivers/net/wireless/ath/ath9k/dynack.h
@@ -86,7 +86,8 @@ void ath_dynack_node_deinit(struct ath_hw *ah, struct ath_node *an);
 void ath_dynack_init(struct ath_hw *ah);
 void ath_dynack_sample_ack_ts(struct ath_hw *ah, struct sk_buff *skb, u32 ts);
 void ath_dynack_sample_tx_ts(struct ath_hw *ah, struct sk_buff *skb,
-			     struct ath_tx_status *ts);
+			     struct ath_tx_status *ts,
+			     struct ieee80211_sta *sta);
 #else
 static inline void ath_dynack_init(struct ath_hw *ah) {}
 static inline void ath_dynack_node_init(struct ath_hw *ah,
@@ -97,7 +98,8 @@ static inline void ath_dynack_sample_ack_ts(struct ath_hw *ah,
 					    struct sk_buff *skb, u32 ts) {}
 static inline void ath_dynack_sample_tx_ts(struct ath_hw *ah,
 					   struct sk_buff *skb,
-					   struct ath_tx_status *ts) {}
+					   struct ath_tx_status *ts,
+					   struct ieee80211_sta *sta) {}
 #endif
 
 #endif /* DYNACK_H */
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 25b3fc82d4ac..f448d5716639 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -629,7 +629,7 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
 				if (bf == bf->bf_lastbf)
 					ath_dynack_sample_tx_ts(sc->sc_ah,
 								bf->bf_mpdu,
-								ts);
+								ts, sta);
 			}
 
 			ath_tx_complete_buf(sc, bf, txq, &bf_head, sta, ts,
@@ -773,7 +773,8 @@ static void ath_tx_process_buffer(struct ath_softc *sc, struct ath_txq *txq,
 			memcpy(info->control.rates, bf->rates,
 			       sizeof(info->control.rates));
 			ath_tx_rc_status(sc, bf, ts, 1, txok ? 0 : 1, txok);
-			ath_dynack_sample_tx_ts(sc->sc_ah, bf->bf_mpdu, ts);
+			ath_dynack_sample_tx_ts(sc->sc_ah, bf->bf_mpdu, ts,
+						sta);
 		}
 		ath_tx_complete_buf(sc, bf, txq, bf_head, sta, ts, txok);
 	} else

From 55bb78d265c6bdebbe2fbfe2c7a30539f3b3412c Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Date: Fri, 2 Nov 2018 21:49:59 +0100
Subject: [PATCH 045/124] ath9k: dynack: remove 'experimental' tag

Remove experimental tag from dynack Kconfig entry since it has
been tested on outdoor 25Km links

Tested-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/ath9k/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath9k/Kconfig b/drivers/net/wireless/ath/ath9k/Kconfig
index 1f3523019509..ceca23a851d5 100644
--- a/drivers/net/wireless/ath/ath9k/Kconfig
+++ b/drivers/net/wireless/ath/ath9k/Kconfig
@@ -116,7 +116,7 @@ config ATH9K_DFS_CERTIFIED
 	  except increase code size.
 
 config ATH9K_DYNACK
-	bool "Atheros ath9k ACK timeout estimation algorithm (EXPERIMENTAL)"
+	bool "Atheros ath9k ACK timeout estimation algorithm"
 	depends on ATH9K
 	default n
 	---help---

From a1a3b762163868ad07a4499a73df324f40d5ab0b Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Wed, 10 Oct 2018 13:00:58 +0200
Subject: [PATCH 046/124] brcmfmac: Remove firmware-loading code duplication

brcmf_fw_request_next_item and brcmf_fw_request_done both have identical
code to complete the fw-request depending on the item-type.

This commit adds a new brcmf_fw_complete_request helper removing this code
duplication.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 .../broadcom/brcm80211/brcmfmac/firmware.c    | 62 +++++++++----------
 1 file changed, 31 insertions(+), 31 deletions(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
index 9095b830ae4d..784c84f0e9e7 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
@@ -504,6 +504,34 @@ static int brcmf_fw_request_nvram_done(const struct firmware *fw, void *ctx)
 	return -ENOENT;
 }
 
+static int brcmf_fw_complete_request(const struct firmware *fw,
+				     struct brcmf_fw *fwctx)
+{
+	struct brcmf_fw_item *cur = &fwctx->req->items[fwctx->curpos];
+	int ret = 0;
+
+	brcmf_dbg(TRACE, "firmware %s %sfound\n", cur->path, fw ? "" : "not ");
+
+	switch (cur->type) {
+	case BRCMF_FW_TYPE_NVRAM:
+		ret = brcmf_fw_request_nvram_done(fw, fwctx);
+		break;
+	case BRCMF_FW_TYPE_BINARY:
+		if (fw)
+			cur->binary = fw;
+		else
+			ret = -ENOENT;
+		break;
+	default:
+		/* something fishy here so bail out early */
+		brcmf_err("unknown fw type: %d\n", cur->type);
+		release_firmware(fw);
+		ret = -EINVAL;
+	}
+
+	return (cur->flags & BRCMF_FW_REQF_OPTIONAL) ? 0 : ret;
+}
+
 static int brcmf_fw_request_next_item(struct brcmf_fw *fwctx, bool async)
 {
 	struct brcmf_fw_item *cur;
@@ -525,15 +553,7 @@ static int brcmf_fw_request_next_item(struct brcmf_fw *fwctx, bool async)
 	if (ret < 0) {
 		brcmf_fw_request_done(NULL, fwctx);
 	} else if (!async && fw) {
-		brcmf_dbg(TRACE, "firmware %s %sfound\n", cur->path,
-			  fw ? "" : "not ");
-		if (cur->type == BRCMF_FW_TYPE_BINARY)
-			cur->binary = fw;
-		else if (cur->type == BRCMF_FW_TYPE_NVRAM)
-			brcmf_fw_request_nvram_done(fw, fwctx);
-		else
-			release_firmware(fw);
-
+		brcmf_fw_complete_request(fw, fwctx);
 		return -EAGAIN;
 	}
 	return 0;
@@ -547,28 +567,8 @@ static void brcmf_fw_request_done(const struct firmware *fw, void *ctx)
 
 	cur = &fwctx->req->items[fwctx->curpos];
 
-	brcmf_dbg(TRACE, "enter: firmware %s %sfound\n", cur->path,
-		  fw ? "" : "not ");
-
-	if (!fw)
-		ret = -ENOENT;
-
-	switch (cur->type) {
-	case BRCMF_FW_TYPE_NVRAM:
-		ret = brcmf_fw_request_nvram_done(fw, fwctx);
-		break;
-	case BRCMF_FW_TYPE_BINARY:
-		cur->binary = fw;
-		break;
-	default:
-		/* something fishy here so bail out early */
-		brcmf_err("unknown fw type: %d\n", cur->type);
-		release_firmware(fw);
-		ret = -EINVAL;
-		goto fail;
-	}
-
-	if (ret < 0 && !(cur->flags & BRCMF_FW_REQF_OPTIONAL))
+	ret = brcmf_fw_complete_request(fw, fwctx);
+	if (ret < 0)
 		goto fail;
 
 	do {

From 5b587496dc63595b71265d986ce69728c2724370 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Wed, 10 Oct 2018 13:00:59 +0200
Subject: [PATCH 047/124] brcmfmac: Remove recursion from firmware load error
 handling

Before this commit brcmf_fw_request_done would call
brcmf_fw_request_next_item to load the next item, which on an error would
call brcmf_fw_request_done, which if the error is recoverable (*) will
then continue calling brcmf_fw_request_next_item for the next item again
which on an error will call brcmf_fw_request_done again...

This does not blow up because we only have a limited number of items so
we never recurse too deep. But the recursion is still quite ugly and
frankly is giving me a headache, so lets fix this.

This commit fixes this by removing brcmf_fw_request_next_item and by
making brcmf_fw_get_firmwares and brcmf_fw_request_done directly call
firmware_request_nowait resp. firmware_request themselves.

*) brcmf_fw_request_nvram_done fallback path succeeds or
   BRCMF_FW_REQF_OPTIONAL is set

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 .../broadcom/brcm80211/brcmfmac/firmware.c    | 65 ++++++-------------
 1 file changed, 19 insertions(+), 46 deletions(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
index 784c84f0e9e7..08aaf99fee34 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
@@ -532,33 +532,6 @@ static int brcmf_fw_complete_request(const struct firmware *fw,
 	return (cur->flags & BRCMF_FW_REQF_OPTIONAL) ? 0 : ret;
 }
 
-static int brcmf_fw_request_next_item(struct brcmf_fw *fwctx, bool async)
-{
-	struct brcmf_fw_item *cur;
-	const struct firmware *fw = NULL;
-	int ret;
-
-	cur = &fwctx->req->items[fwctx->curpos];
-
-	brcmf_dbg(TRACE, "%srequest for %s\n", async ? "async " : "",
-		  cur->path);
-
-	if (async)
-		ret = request_firmware_nowait(THIS_MODULE, true, cur->path,
-					      fwctx->dev, GFP_KERNEL, fwctx,
-					      brcmf_fw_request_done);
-	else
-		ret = request_firmware(&fw, cur->path, fwctx->dev);
-
-	if (ret < 0) {
-		brcmf_fw_request_done(NULL, fwctx);
-	} else if (!async && fw) {
-		brcmf_fw_complete_request(fw, fwctx);
-		return -EAGAIN;
-	}
-	return 0;
-}
-
 static void brcmf_fw_request_done(const struct firmware *fw, void *ctx)
 {
 	struct brcmf_fw *fwctx = ctx;
@@ -568,26 +541,19 @@ static void brcmf_fw_request_done(const struct firmware *fw, void *ctx)
 	cur = &fwctx->req->items[fwctx->curpos];
 
 	ret = brcmf_fw_complete_request(fw, fwctx);
-	if (ret < 0)
-		goto fail;
 
-	do {
-		if (++fwctx->curpos == fwctx->req->n_items) {
-			ret = 0;
-			goto done;
-		}
+	while (ret == 0 && ++fwctx->curpos < fwctx->req->n_items) {
+		cur = &fwctx->req->items[fwctx->curpos];
+		request_firmware(&fw, cur->path, fwctx->dev);
+		ret = brcmf_fw_complete_request(fw, ctx);
+	}
 
-		ret = brcmf_fw_request_next_item(fwctx, false);
-	} while (ret == -EAGAIN);
-
-	return;
-
-fail:
-	brcmf_dbg(TRACE, "failed err=%d: dev=%s, fw=%s\n", ret,
-		  dev_name(fwctx->dev), cur->path);
-	brcmf_fw_free_request(fwctx->req);
-	fwctx->req = NULL;
-done:
+	if (ret) {
+		brcmf_dbg(TRACE, "failed err=%d: dev=%s, fw=%s\n", ret,
+			  dev_name(fwctx->dev), cur->path);
+		brcmf_fw_free_request(fwctx->req);
+		fwctx->req = NULL;
+	}
 	fwctx->done(fwctx->dev, ret, fwctx->req);
 	kfree(fwctx);
 }
@@ -611,7 +577,9 @@ int brcmf_fw_get_firmwares(struct device *dev, struct brcmf_fw_request *req,
 			   void (*fw_cb)(struct device *dev, int err,
 					 struct brcmf_fw_request *req))
 {
+	struct brcmf_fw_item *first = &req->items[0];
 	struct brcmf_fw *fwctx;
+	int ret;
 
 	brcmf_dbg(TRACE, "enter: dev=%s\n", dev_name(dev));
 	if (!fw_cb)
@@ -628,7 +596,12 @@ int brcmf_fw_get_firmwares(struct device *dev, struct brcmf_fw_request *req,
 	fwctx->req = req;
 	fwctx->done = fw_cb;
 
-	brcmf_fw_request_next_item(fwctx, true);
+	ret = request_firmware_nowait(THIS_MODULE, true, first->path,
+				      fwctx->dev, GFP_KERNEL, fwctx,
+				      brcmf_fw_request_done);
+	if (ret < 0)
+		brcmf_fw_request_done(NULL, fwctx);
+
 	return 0;
 }
 

From eae8e50669e15002b195177212a6e25afbe7cf4d Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Wed, 10 Oct 2018 13:01:00 +0200
Subject: [PATCH 048/124] brcmfmac: Add support for first trying to get a board
 specific nvram file

The nvram files which some brcmfmac chips need are board-specific. To be
able to distribute these as part of linux-firmware, so that devices with
such a wifi chip will work OOTB, multiple (one per board) versions must
co-exist under /lib/firmware.

This commit adds support for callers of the brcmfmac/firmware.c code to
pass in a board_type parameter through the request structure.

If that parameter is set then the code will first try to load
chipmodel.board_type.txt before falling back to the old chipmodel.txt name.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 .../broadcom/brcm80211/brcmfmac/firmware.c    | 27 ++++++++++++++++++-
 .../broadcom/brcm80211/brcmfmac/firmware.h    |  1 +
 2 files changed, 27 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
index 08aaf99fee34..6755b2388fbc 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
@@ -532,6 +532,31 @@ static int brcmf_fw_complete_request(const struct firmware *fw,
 	return (cur->flags & BRCMF_FW_REQF_OPTIONAL) ? 0 : ret;
 }
 
+static int brcmf_fw_request_firmware(const struct firmware **fw,
+				     struct brcmf_fw *fwctx)
+{
+	struct brcmf_fw_item *cur = &fwctx->req->items[fwctx->curpos];
+	int ret;
+
+	/* nvram files are board-specific, first try a board-specific path */
+	if (cur->type == BRCMF_FW_TYPE_NVRAM && fwctx->req->board_type) {
+		char alt_path[BRCMF_FW_NAME_LEN];
+
+		strlcpy(alt_path, cur->path, BRCMF_FW_NAME_LEN);
+		/* strip .txt at the end */
+		alt_path[strlen(alt_path) - 4] = 0;
+		strlcat(alt_path, ".", BRCMF_FW_NAME_LEN);
+		strlcat(alt_path, fwctx->req->board_type, BRCMF_FW_NAME_LEN);
+		strlcat(alt_path, ".txt", BRCMF_FW_NAME_LEN);
+
+		ret = request_firmware(fw, alt_path, fwctx->dev);
+		if (ret == 0)
+			return ret;
+	}
+
+	return request_firmware(fw, cur->path, fwctx->dev);
+}
+
 static void brcmf_fw_request_done(const struct firmware *fw, void *ctx)
 {
 	struct brcmf_fw *fwctx = ctx;
@@ -544,7 +569,7 @@ static void brcmf_fw_request_done(const struct firmware *fw, void *ctx)
 
 	while (ret == 0 && ++fwctx->curpos < fwctx->req->n_items) {
 		cur = &fwctx->req->items[fwctx->curpos];
-		request_firmware(&fw, cur->path, fwctx->dev);
+		brcmf_fw_request_firmware(&fw, fwctx);
 		ret = brcmf_fw_complete_request(fw, ctx);
 	}
 
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.h
index 2893e56910f0..a0834be8864e 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.h
@@ -70,6 +70,7 @@ struct brcmf_fw_request {
 	u16 domain_nr;
 	u16 bus_nr;
 	u32 n_items;
+	const char *board_type;
 	struct brcmf_fw_item items[0];
 };
 

From 0ad4b55b2f29784f93875e6231bf57cd233624a2 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Wed, 10 Oct 2018 13:01:01 +0200
Subject: [PATCH 049/124] brcmfmac: Set board_type used for nvram file
 selection to machine-compatible

For of/devicetree using machines, set the board_type used for nvram file
selection to the first string listed in the top-level's node compatible
string, aka the machine-compatible as used by of_machine_is_compatible().

The board_type setting is used to load the board-specific nvram file with
a board-specific name so that we can ship files for each supported board
in linux-firmware.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 .../net/wireless/broadcom/brcm80211/brcmfmac/common.h |  1 +
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c | 11 ++++++++++-
 .../net/wireless/broadcom/brcm80211/brcmfmac/pcie.c   |  1 +
 .../net/wireless/broadcom/brcm80211/brcmfmac/sdio.c   |  1 +
 4 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h
index a34642cb4d2f..e63a273642e9 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h
@@ -59,6 +59,7 @@ struct brcmf_mp_device {
 	bool		iapp;
 	bool		ignore_probe_fail;
 	struct brcmfmac_pd_cc *country_codes;
+	const char	*board_type;
 	union {
 		struct brcmfmac_sdio_pd sdio;
 	} bus;
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c
index aee6e5937c41..84e3373289eb 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c
@@ -27,11 +27,20 @@ void brcmf_of_probe(struct device *dev, enum brcmf_bus_type bus_type,
 		    struct brcmf_mp_device *settings)
 {
 	struct brcmfmac_sdio_pd *sdio = &settings->bus.sdio;
-	struct device_node *np = dev->of_node;
+	struct device_node *root, *np = dev->of_node;
+	struct property *prop;
 	int irq;
 	u32 irqf;
 	u32 val;
 
+	/* Set board-type to the first string of the machine compatible prop */
+	root = of_find_node_by_path("/");
+	if (root) {
+		prop = of_find_property(root, "compatible", NULL);
+		settings->board_type = of_prop_next_string(prop, NULL);
+		of_node_put(root);
+	}
+
 	if (!np || bus_type != BRCMF_BUSTYPE_SDIO ||
 	    !of_device_is_compatible(np, "brcm,bcm4329-fmac"))
 		return;
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
index 5dea569d63ed..956a8b236836 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
@@ -1785,6 +1785,7 @@ brcmf_pcie_prepare_fw_request(struct brcmf_pciedev_info *devinfo)
 	fwreq->items[BRCMF_PCIE_FW_CODE].type = BRCMF_FW_TYPE_BINARY;
 	fwreq->items[BRCMF_PCIE_FW_NVRAM].type = BRCMF_FW_TYPE_NVRAM;
 	fwreq->items[BRCMF_PCIE_FW_NVRAM].flags = BRCMF_FW_REQF_OPTIONAL;
+	fwreq->board_type = devinfo->settings->board_type;
 	/* NVRAM reserves PCI domain 0 for Broadcom's SDK faked bus */
 	fwreq->domain_nr = pci_domain_nr(devinfo->pdev->bus) + 1;
 	fwreq->bus_nr = devinfo->pdev->bus->number;
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
index b2e1ab5adb64..22646a3b911e 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
@@ -4174,6 +4174,7 @@ brcmf_sdio_prepare_fw_request(struct brcmf_sdio *bus)
 
 	fwreq->items[BRCMF_SDIO_FW_CODE].type = BRCMF_FW_TYPE_BINARY;
 	fwreq->items[BRCMF_SDIO_FW_NVRAM].type = BRCMF_FW_TYPE_NVRAM;
+	fwreq->board_type = bus->sdiodev->settings->board_type;
 
 	return fwreq;
 }

From bd1e82bb420adf4ad7cd468d8a482cde622dd69d Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Wed, 10 Oct 2018 13:01:02 +0200
Subject: [PATCH 050/124] brcmfmac: Set board_type from DMI on x86 based
 machines

For x86 based machines, set the board_type used for nvram file selection
based on the DMI sys-vendor and product-name strings.

Since on some models these strings are too generic, this commit also adds
a quirk table overriding the strings for models listed in that table.

The board_type setting is used to load the board-specific nvram file with
a board-specific name so that we can ship files for each supported board
in linux-firmware.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 .../broadcom/brcm80211/brcmfmac/Makefile      |   2 +
 .../broadcom/brcm80211/brcmfmac/common.c      |   3 +-
 .../broadcom/brcm80211/brcmfmac/common.h      |   7 ++
 .../broadcom/brcm80211/brcmfmac/dmi.c         | 116 ++++++++++++++++++
 4 files changed, 127 insertions(+), 1 deletion(-)
 create mode 100644 drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/Makefile b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/Makefile
index 1f5a9b948abf..22fd95a736a8 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/Makefile
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/Makefile
@@ -54,3 +54,5 @@ brcmfmac-$(CONFIG_BRCM_TRACING) += \
 		tracepoint.o
 brcmfmac-$(CONFIG_OF) += \
 		of.o
+brcmfmac-$(CONFIG_DMI) += \
+		dmi.o
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
index 94044a7a6021..d52774c6489b 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
@@ -448,8 +448,9 @@ struct brcmf_mp_device *brcmf_get_module_param(struct device *dev,
 		}
 	}
 	if (!found) {
-		/* No platform data for this device, try OF (Open Firwmare) */
+		/* No platform data for this device, try OF and DMI data */
 		brcmf_of_probe(dev, bus_type, settings);
+		brcmf_dmi_probe(settings, chip, chiprev);
 	}
 	return settings;
 }
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h
index e63a273642e9..4ce56be90b74 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h
@@ -75,4 +75,11 @@ void brcmf_release_module_param(struct brcmf_mp_device *module_param);
 /* Sets dongle media info (drv_version, mac address). */
 int brcmf_c_preinit_dcmds(struct brcmf_if *ifp);
 
+#ifdef CONFIG_DMI
+void brcmf_dmi_probe(struct brcmf_mp_device *settings, u32 chip, u32 chiprev);
+#else
+static inline void
+brcmf_dmi_probe(struct brcmf_mp_device *settings, u32 chip, u32 chiprev) {}
+#endif
+
 #endif /* BRCMFMAC_COMMON_H */
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c
new file mode 100644
index 000000000000..51d76ac45075
--- /dev/null
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c
@@ -0,0 +1,116 @@
+/*
+ * Copyright 2018 Hans de Goede <hdegoede@redhat.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/dmi.h>
+#include <linux/mod_devicetable.h>
+#include "core.h"
+#include "common.h"
+#include "brcm_hw_ids.h"
+
+/* The DMI data never changes so we can use a static buf for this */
+static char dmi_board_type[128];
+
+struct brcmf_dmi_data {
+	u32 chip;
+	u32 chiprev;
+	const char *board_type;
+};
+
+/* NOTE: Please keep all entries sorted alphabetically */
+
+static const struct brcmf_dmi_data gpd_win_pocket_data = {
+	BRCM_CC_4356_CHIP_ID, 2, "gpd-win-pocket"
+};
+
+static const struct brcmf_dmi_data jumper_ezpad_mini3_data = {
+	BRCM_CC_43430_CHIP_ID, 0, "jumper-ezpad-mini3"
+};
+
+static const struct brcmf_dmi_data meegopad_t08_data = {
+	BRCM_CC_43340_CHIP_ID, 2, "meegopad-t08"
+};
+
+static const struct dmi_system_id dmi_platform_data[] = {
+	{
+		/* Match for the GPDwin which unfortunately uses somewhat
+		 * generic dmi strings, which is why we test for 4 strings.
+		 * Comparing against 23 other byt/cht boards, board_vendor
+		 * and board_name are unique to the GPDwin, where as only one
+		 * other board has the same board_serial and 3 others have
+		 * the same default product_name. Also the GPDwin is the
+		 * only device to have both board_ and product_name not set.
+		 */
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
+			DMI_MATCH(DMI_BOARD_NAME, "Default string"),
+			DMI_MATCH(DMI_BOARD_SERIAL, "Default string"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
+		},
+		.driver_data = (void *)&gpd_win_pocket_data,
+	},
+	{
+		/* Jumper EZpad mini3 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "CherryTrail"),
+			/* jumperx.T87.KFBNEEA02 with the version-nr dropped */
+			DMI_MATCH(DMI_BIOS_VERSION, "jumperx.T87.KFBNEEA"),
+		},
+		.driver_data = (void *)&jumper_ezpad_mini3_data,
+	},
+	{
+		/* Meegopad T08 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Default string"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
+			DMI_MATCH(DMI_BOARD_NAME, "T3 MRD"),
+			DMI_MATCH(DMI_BOARD_VERSION, "V1.1"),
+		},
+		.driver_data = (void *)&meegopad_t08_data,
+	},
+	{}
+};
+
+void brcmf_dmi_probe(struct brcmf_mp_device *settings, u32 chip, u32 chiprev)
+{
+	const struct dmi_system_id *match;
+	const struct brcmf_dmi_data *data;
+	const char *sys_vendor;
+	const char *product_name;
+
+	/* Some models have DMI strings which are too generic, e.g.
+	 * "Default string", we use a quirk table for these.
+	 */
+	for (match = dmi_first_match(dmi_platform_data);
+	     match;
+	     match = dmi_first_match(match + 1)) {
+		data = match->driver_data;
+
+		if (data->chip == chip && data->chiprev == chiprev) {
+			settings->board_type = data->board_type;
+			return;
+		}
+	}
+
+	/* Not found in the quirk-table, use sys_vendor-product_name */
+	sys_vendor = dmi_get_system_info(DMI_SYS_VENDOR);
+	product_name = dmi_get_system_info(DMI_PRODUCT_NAME);
+	if (sys_vendor && product_name) {
+		snprintf(dmi_board_type, sizeof(dmi_board_type), "%s-%s",
+			 sys_vendor, product_name);
+		settings->board_type = dmi_board_type;
+	}
+}

From 55e491edbf14b2da5419c2a319ea3b1d6368d9a2 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Wed, 10 Oct 2018 13:01:03 +0200
Subject: [PATCH 051/124] brcmfmac: Cleanup brcmf_fw_request_done()

The "cur" variable is now only used for a debug print and we already
print the same info from brcmf_fw_complete_request(), so the debug print
does not provide any extra info and we can remove it.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 .../net/wireless/broadcom/brcm80211/brcmfmac/firmware.c   | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
index 6755b2388fbc..b38c4b40b235 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
@@ -560,22 +560,16 @@ static int brcmf_fw_request_firmware(const struct firmware **fw,
 static void brcmf_fw_request_done(const struct firmware *fw, void *ctx)
 {
 	struct brcmf_fw *fwctx = ctx;
-	struct brcmf_fw_item *cur;
-	int ret = 0;
-
-	cur = &fwctx->req->items[fwctx->curpos];
+	int ret;
 
 	ret = brcmf_fw_complete_request(fw, fwctx);
 
 	while (ret == 0 && ++fwctx->curpos < fwctx->req->n_items) {
-		cur = &fwctx->req->items[fwctx->curpos];
 		brcmf_fw_request_firmware(&fw, fwctx);
 		ret = brcmf_fw_complete_request(fw, ctx);
 	}
 
 	if (ret) {
-		brcmf_dbg(TRACE, "failed err=%d: dev=%s, fw=%s\n", ret,
-			  dev_name(fwctx->dev), cur->path);
 		brcmf_fw_free_request(fwctx->req);
 		fwctx->req = NULL;
 	}

From ce2e6db554fad444fa0b3904fc3015336e0ef765 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Thu, 11 Oct 2018 11:51:06 +0200
Subject: [PATCH 052/124] brcmfmac: Add support for getting nvram contents from
 EFI variables

Various X86 laptops with a SDIO attached brcmfmac wifi chip, store the
nvram contents in a special EFI variable. This commit adds support for
getting nvram directly from this EFI variable, without the user needing
to manually copy it.

This makes Wifi / Bluetooth work out of the box on these devices instead of
requiring manual setup.

This has been tested on the following models: Acer Iconia Tab8 w1-810,
Acer One 10, Asus T100CHI, Asus T100HA, Asus T100TA, Asus T200TA and a
Lenovo Mixx 2 8.

Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 .../broadcom/brcm80211/brcmfmac/firmware.c    | 63 +++++++++++++++++--
 1 file changed, 57 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
index b38c4b40b235..965ae5c24c2d 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
@@ -14,6 +14,7 @@
  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+#include <linux/efi.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/device.h>
@@ -445,6 +446,51 @@ struct brcmf_fw {
 
 static void brcmf_fw_request_done(const struct firmware *fw, void *ctx);
 
+#ifdef CONFIG_EFI
+static u8 *brcmf_fw_nvram_from_efi(size_t *data_len_ret)
+{
+	const u16 name[] = { 'n', 'v', 'r', 'a', 'm', 0 };
+	struct efivar_entry *nvram_efivar;
+	unsigned long data_len = 0;
+	u8 *data = NULL;
+	int err;
+
+	nvram_efivar = kzalloc(sizeof(*nvram_efivar), GFP_KERNEL);
+	if (!nvram_efivar)
+		return NULL;
+
+	memcpy(&nvram_efivar->var.VariableName, name, sizeof(name));
+	nvram_efivar->var.VendorGuid = EFI_GUID(0x74b00bd9, 0x805a, 0x4d61,
+						0xb5, 0x1f, 0x43, 0x26,
+						0x81, 0x23, 0xd1, 0x13);
+
+	err = efivar_entry_size(nvram_efivar, &data_len);
+	if (err)
+		goto fail;
+
+	data = kmalloc(data_len, GFP_KERNEL);
+	if (!data)
+		goto fail;
+
+	err = efivar_entry_get(nvram_efivar, NULL, &data_len, data);
+	if (err)
+		goto fail;
+
+	brcmf_info("Using nvram EFI variable\n");
+
+	kfree(nvram_efivar);
+	*data_len_ret = data_len;
+	return data;
+
+fail:
+	kfree(data);
+	kfree(nvram_efivar);
+	return NULL;
+}
+#else
+static u8 *brcmf_fw_nvram_from_efi(size_t *data_len) { return NULL; }
+#endif
+
 static void brcmf_fw_free_request(struct brcmf_fw_request *req)
 {
 	struct brcmf_fw_item *item;
@@ -463,11 +509,12 @@ static int brcmf_fw_request_nvram_done(const struct firmware *fw, void *ctx)
 {
 	struct brcmf_fw *fwctx = ctx;
 	struct brcmf_fw_item *cur;
+	bool free_bcm47xx_nvram = false;
+	bool kfree_nvram = false;
 	u32 nvram_length = 0;
 	void *nvram = NULL;
 	u8 *data = NULL;
 	size_t data_len;
-	bool raw_nvram;
 
 	brcmf_dbg(TRACE, "enter: dev=%s\n", dev_name(fwctx->dev));
 
@@ -476,12 +523,13 @@ static int brcmf_fw_request_nvram_done(const struct firmware *fw, void *ctx)
 	if (fw && fw->data) {
 		data = (u8 *)fw->data;
 		data_len = fw->size;
-		raw_nvram = false;
 	} else {
-		data = bcm47xx_nvram_get_contents(&data_len);
-		if (!data && !(cur->flags & BRCMF_FW_REQF_OPTIONAL))
+		if ((data = bcm47xx_nvram_get_contents(&data_len)))
+			free_bcm47xx_nvram = true;
+		else if ((data = brcmf_fw_nvram_from_efi(&data_len)))
+			kfree_nvram = true;
+		else if (!(cur->flags & BRCMF_FW_REQF_OPTIONAL))
 			goto fail;
-		raw_nvram = true;
 	}
 
 	if (data)
@@ -489,8 +537,11 @@ static int brcmf_fw_request_nvram_done(const struct firmware *fw, void *ctx)
 					     fwctx->req->domain_nr,
 					     fwctx->req->bus_nr);
 
-	if (raw_nvram)
+	if (free_bcm47xx_nvram)
 		bcm47xx_nvram_release_contents(data);
+	if (kfree_nvram)
+		kfree(data);
+
 	release_firmware(fw);
 	if (!nvram && !(cur->flags & BRCMF_FW_REQF_OPTIONAL))
 		goto fail;

From 29ec3394f0bd85c22674ab6693d92da5e2324610 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Thu, 11 Oct 2018 11:51:07 +0200
Subject: [PATCH 053/124] brcmfmac: Fix ccode from EFI nvram when necessary

In some cases the EFI-var stored nvram contains "ccode=ALL" or "ccode=XV"
to specify "worldwide" compatible settings, but these 2 ccode-s do not work
properly.

I've tested the different known "worldwide" ccode-s used in various nvram
sources with the latest firmwares from linux-firmware for various brcmfmac
models, here is a simplified (*) table with what each setting results in:

ALL: 12-14 disab, U-NII-1, U-NII-2 no-IR/radar, U-NII-3
XV:  12-14 no-IR, disables all 5G channels
XY:  12-13 enab, 14 disab, U-NII-1 enab, U-NII-2 no-IR/radar, U-NII-3 disab
X2:  12-13 no-IR, 14 dis, U-NII-1 no-IR, U-NII-2 no-IR/radar, U-NII-3 no-IR

Where 12,13,14 are 2.4G channels 12-14 and U-NII-1/2/3 are the 3 different
5G channel groups. no-IR is no-Initiate-Radiation, we will never send on
these channels without first having received valid wifi traffic there.

This immediately shows that both ALL and XV are not as worldwide as we want
them to be. ALL causes channels 12 and 13 to not be available and XV causes
all 5GHz channels to not be available. Also ALL unconditionally enables the
U-NII-1 and U-NII-3 5G groups, while we really should be using no-IR for
these.

This commit replace XV and ALL with X2, which allows usage of chan 12-13
and 5G channels, but only after receiving valid wifi traffic there first.

Note that this configure the firmware's channel limits, the kernels own
regulatory restrictions based on e.g. regulatory info received from the
access-point, will be applied on top of this.

This fixes channels 12+13 not working on the Asus T200TA and the Lenovo
Mixx 2 8 and 5G channels not working on the Asus T100HA.

This has been tested on the following models: Acer Iconia Tab8 w1-810,
Acer One 10, Asus T100CHI, Asus T100HA, Asus T100TA, Asus T200TA and a
Lenovo Mixx 2 8.

*) There are some exceptions to this table:
1) On really old firmware e.g. linux-firmware's 2011 brcmfmac4330-sdio.bin
   ALL really means all, unconditionally enabling everything
2) The exact meaning might be influenced by setting the regrev nvram var.
   Specifically using ccode=XV + regrev=1 on brcmfmac43241b4 leads to:
   12-14 no-ir, U-NII-1 no-ir, U-NII-2 no-ir/radar, U-NII-3 no-ir
   But only on the brcmfmac43241b4 and not on e.g. the brcmfmac43340

Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 .../broadcom/brcm80211/brcmfmac/firmware.c    | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
index 965ae5c24c2d..72d8c0c3c3a1 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
@@ -447,6 +447,29 @@ struct brcmf_fw {
 static void brcmf_fw_request_done(const struct firmware *fw, void *ctx);
 
 #ifdef CONFIG_EFI
+/* In some cases the EFI-var stored nvram contains "ccode=ALL" or "ccode=XV"
+ * to specify "worldwide" compatible settings, but these 2 ccode-s do not work
+ * properly. "ccode=ALL" causes channels 12 and 13 to not be available,
+ * "ccode=XV" causes all 5GHz channels to not be available. So we replace both
+ * with "ccode=X2" which allows channels 12+13 and 5Ghz channels in
+ * no-Initiate-Radiation mode. This means that we will never send on these
+ * channels without first having received valid wifi traffic on the channel.
+ */
+static void brcmf_fw_fix_efi_nvram_ccode(char *data, unsigned long data_len)
+{
+	char *ccode;
+
+	ccode = strnstr((char *)data, "ccode=ALL", data_len);
+	if (!ccode)
+		ccode = strnstr((char *)data, "ccode=XV\r", data_len);
+	if (!ccode)
+		return;
+
+	ccode[6] = 'X';
+	ccode[7] = '2';
+	ccode[8] = '\r';
+}
+
 static u8 *brcmf_fw_nvram_from_efi(size_t *data_len_ret)
 {
 	const u16 name[] = { 'n', 'v', 'r', 'a', 'm', 0 };
@@ -476,6 +499,7 @@ static u8 *brcmf_fw_nvram_from_efi(size_t *data_len_ret)
 	if (err)
 		goto fail;
 
+	brcmf_fw_fix_efi_nvram_ccode(data, data_len);
 	brcmf_info("Using nvram EFI variable\n");
 
 	kfree(nvram_efivar);

From 55930d2bf79bfed9c7a435e7920123b16620ee27 Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.king@canonical.com>
Date: Sat, 13 Oct 2018 16:37:30 +0100
Subject: [PATCH 054/124] rsi: fix spelling mistake "Initialzing" ->
 "Initializing"

Trivial fix to spelling mistake in rsi_dbg debug message

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/rsi/rsi_91x_sdio_ops.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/rsi/rsi_91x_sdio_ops.c b/drivers/net/wireless/rsi/rsi_91x_sdio_ops.c
index 612c211e21a1..449f6d23c5e3 100644
--- a/drivers/net/wireless/rsi/rsi_91x_sdio_ops.c
+++ b/drivers/net/wireless/rsi/rsi_91x_sdio_ops.c
@@ -210,7 +210,7 @@ int rsi_init_sdio_slave_regs(struct rsi_hw *adapter)
 	}
 
 	/* This tells SDIO FIFO when to start read to host */
-	rsi_dbg(INIT_ZONE, "%s: Initialzing SDIO read start level\n", __func__);
+	rsi_dbg(INIT_ZONE, "%s: Initializing SDIO read start level\n", __func__);
 	byte = 0x24;
 
 	status = rsi_sdio_write_register(adapter,
@@ -223,7 +223,7 @@ int rsi_init_sdio_slave_regs(struct rsi_hw *adapter)
 		return -1;
 	}
 
-	rsi_dbg(INIT_ZONE, "%s: Initialzing FIFO ctrl registers\n", __func__);
+	rsi_dbg(INIT_ZONE, "%s: Initializing FIFO ctrl registers\n", __func__);
 	byte = (128 - 32);
 
 	status = rsi_sdio_write_register(adapter,

From 937a13091cbd36d2cf1c266522f962ef6fe84bb5 Mon Sep 17 00:00:00 2001
From: YueHaibing <yuehaibing@huawei.com>
Date: Mon, 15 Oct 2018 02:16:35 +0000
Subject: [PATCH 055/124] libertas: remove set but not used variable 'int_type'

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/wireless/marvell/libertas/if_spi.c: In function 'if_spi_h2c':
drivers/net/wireless/marvell/libertas/if_spi.c:799:6: warning:
 variable 'int_type' set but not used [-Wunused-but-set-variable]

It never used since introduction in
commit d2b21f191753 ("libertas: if_spi, driver for libertas GSPI devices")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Tested-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/marvell/libertas/if_spi.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/net/wireless/marvell/libertas/if_spi.c b/drivers/net/wireless/marvell/libertas/if_spi.c
index 504d6e096476..7c3224b83ef7 100644
--- a/drivers/net/wireless/marvell/libertas/if_spi.c
+++ b/drivers/net/wireless/marvell/libertas/if_spi.c
@@ -796,15 +796,13 @@ static void if_spi_h2c(struct if_spi_card *card,
 {
 	struct lbs_private *priv = card->priv;
 	int err = 0;
-	u16 int_type, port_reg;
+	u16 port_reg;
 
 	switch (type) {
 	case MVMS_DAT:
-		int_type = IF_SPI_CIC_TX_DOWNLOAD_OVER;
 		port_reg = IF_SPI_DATA_RDWRPORT_REG;
 		break;
 	case MVMS_CMD:
-		int_type = IF_SPI_CIC_CMD_DOWNLOAD_OVER;
 		port_reg = IF_SPI_CMD_RDWRPORT_REG;
 		break;
 	default:

From 3419348a97bcc256238101129d69b600ceb5cc70 Mon Sep 17 00:00:00 2001
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Tue, 16 Oct 2018 09:39:40 +0200
Subject: [PATCH 056/124] wlcore: Fix the return value in case of error in
 'wlcore_vendor_cmd_smart_config_start()'

We return 0 unconditionally at the end of
'wlcore_vendor_cmd_smart_config_start()'.
However, 'ret' is set to some error codes in several error handling paths
and we already return some error codes at the beginning of the function.

Return 'ret' instead to propagate the error code.

Fixes: 80ff8063e87c ("wlcore: handle smart config vendor commands")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ti/wlcore/vendor_cmd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ti/wlcore/vendor_cmd.c b/drivers/net/wireless/ti/wlcore/vendor_cmd.c
index dbe78d8491ef..7f34ec077ee5 100644
--- a/drivers/net/wireless/ti/wlcore/vendor_cmd.c
+++ b/drivers/net/wireless/ti/wlcore/vendor_cmd.c
@@ -70,7 +70,7 @@ wlcore_vendor_cmd_smart_config_start(struct wiphy *wiphy,
 out:
 	mutex_unlock(&wl->mutex);
 
-	return 0;
+	return ret;
 }
 
 static int

From b7da53cd6cd13a782bb08e59b4a3358ec800f724 Mon Sep 17 00:00:00 2001
From: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Date: Tue, 16 Oct 2018 10:23:56 +0000
Subject: [PATCH 057/124] qtnfmac_pcie: use single PCIe driver for all
 platforms

Single PCIe driver can identify hardware type by reading CHIP ID at
probe time and invoking a correct initialization sequence.

Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 .../net/wireless/quantenna/qtnfmac/Kconfig    |  10 +-
 .../net/wireless/quantenna/qtnfmac/Makefile   |   6 +-
 .../wireless/quantenna/qtnfmac/pcie/pcie.c    | 283 ++++++++++++------
 .../quantenna/qtnfmac/pcie/pcie_priv.h        |  19 +-
 .../quantenna/qtnfmac/pcie/pearl_pcie.c       | 213 ++++---------
 drivers/net/wireless/quantenna/qtnfmac/util.c |  16 +
 drivers/net/wireless/quantenna/qtnfmac/util.h |   2 +
 7 files changed, 295 insertions(+), 254 deletions(-)

diff --git a/drivers/net/wireless/quantenna/qtnfmac/Kconfig b/drivers/net/wireless/quantenna/qtnfmac/Kconfig
index b8c12a5f16b4..696c50066b53 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/Kconfig
+++ b/drivers/net/wireless/quantenna/qtnfmac/Kconfig
@@ -1,10 +1,10 @@
 config QTNFMAC
 	tristate
-	depends on QTNFMAC_PEARL_PCIE
-	default m if QTNFMAC_PEARL_PCIE=m
-	default y if QTNFMAC_PEARL_PCIE=y
+	depends on QTNFMAC_PCIE
+	default m if QTNFMAC_PCIE=m
+	default y if QTNFMAC_PCIE=y
 
-config QTNFMAC_PEARL_PCIE
+config QTNFMAC_PCIE
 	tristate "Quantenna QSR10g PCIe support"
 	default n
 	depends on PCI && CFG80211
@@ -16,4 +16,4 @@ config QTNFMAC_PEARL_PCIE
 	  802.11ac QSR10g (aka Pearl) FullMAC chipset running over PCIe.
 
 	  If you choose to build it as a module, two modules will be built:
-	  qtnfmac.ko and qtnfmac_pearl_pcie.ko.
+	  qtnfmac.ko and qtnfmac_pcie.ko.
diff --git a/drivers/net/wireless/quantenna/qtnfmac/Makefile b/drivers/net/wireless/quantenna/qtnfmac/Makefile
index 17cd7adb4109..d7e8185fddab 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/Makefile
+++ b/drivers/net/wireless/quantenna/qtnfmac/Makefile
@@ -19,11 +19,11 @@ qtnfmac-objs += \
 
 #
 
-obj-$(CONFIG_QTNFMAC_PEARL_PCIE) += qtnfmac_pearl_pcie.o
+obj-$(CONFIG_QTNFMAC_PCIE) += qtnfmac_pcie.o
 
-qtnfmac_pearl_pcie-objs += \
+qtnfmac_pcie-objs += \
 	shm_ipc.o \
 	pcie/pcie.o \
 	pcie/pearl_pcie.o
 
-qtnfmac_pearl_pcie-$(CONFIG_DEBUG_FS) += debug.o
+qtnfmac_pcie-$(CONFIG_DEBUG_FS) += debug.o
diff --git a/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie.c b/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie.c
index 16795dbe475b..70dd8da5b0dc 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie.c
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0+
 /* Copyright (c) 2018 Quantenna Communications, Inc. All rights reserved. */
 
+#include <linux/module.h>
 #include <linux/printk.h>
 #include <linux/pci.h>
 #include <linux/spinlock.h>
@@ -15,14 +16,37 @@
 #include "shm_ipc.h"
 #include "core.h"
 #include "debug.h"
-
-#undef pr_fmt
-#define pr_fmt(fmt)	"qtnf_pcie: %s: " fmt, __func__
+#include "util.h"
+#include "qtn_hw_ids.h"
 
 #define QTN_SYSCTL_BAR	0
 #define QTN_SHMEM_BAR	2
 #define QTN_DMA_BAR	3
 
+#define QTN_PCIE_MAX_FW_BUFSZ		(1 * 1024 * 1024)
+
+static bool use_msi = true;
+module_param(use_msi, bool, 0644);
+MODULE_PARM_DESC(use_msi, "set 0 to use legacy interrupt");
+
+static unsigned int tx_bd_size_param;
+module_param(tx_bd_size_param, uint, 0644);
+MODULE_PARM_DESC(tx_bd_size_param, "Tx descriptors queue size");
+
+static unsigned int rx_bd_size_param = 256;
+module_param(rx_bd_size_param, uint, 0644);
+MODULE_PARM_DESC(rx_bd_size_param, "Rx descriptors queue size");
+
+static u8 flashboot = 1;
+module_param(flashboot, byte, 0644);
+MODULE_PARM_DESC(flashboot, "set to 0 to use FW binary file on FS");
+
+static unsigned int fw_blksize_param = QTN_PCIE_MAX_FW_BUFSZ;
+module_param(fw_blksize_param, uint, 0644);
+MODULE_PARM_DESC(fw_blksize_param, "firmware loading block size in bytes");
+
+#define DRV_NAME	"qtnfmac_pcie"
+
 int qtnf_pcie_control_tx(struct qtnf_bus *bus, struct sk_buff *skb)
 {
 	struct qtnf_pcie_bus_priv *priv = get_bus_priv(bus);
@@ -58,7 +82,7 @@ int qtnf_pcie_alloc_skb_array(struct qtnf_pcie_bus_priv *priv)
 	return 0;
 }
 
-void qtnf_pcie_bringup_fw_async(struct qtnf_bus *bus)
+static void qtnf_pcie_bringup_fw_async(struct qtnf_bus *bus)
 {
 	struct qtnf_pcie_bus_priv *priv = get_bus_priv(bus);
 	struct pci_dev *pdev = priv->pdev;
@@ -72,7 +96,7 @@ static int qtnf_dbg_mps_show(struct seq_file *s, void *data)
 	struct qtnf_bus *bus = dev_get_drvdata(s->private);
 	struct qtnf_pcie_bus_priv *priv = get_bus_priv(bus);
 
-	seq_printf(s, "%d\n", priv->mps);
+	seq_printf(s, "%d\n", pcie_get_mps(priv->pdev));
 
 	return 0;
 }
@@ -104,8 +128,7 @@ static int qtnf_dbg_shm_stats(struct seq_file *s, void *data)
 	return 0;
 }
 
-void qtnf_pcie_fw_boot_done(struct qtnf_bus *bus, bool boot_success,
-			    const char *drv_name)
+void qtnf_pcie_fw_boot_done(struct qtnf_bus *bus, bool boot_success)
 {
 	struct qtnf_pcie_bus_priv *priv = get_bus_priv(bus);
 	struct pci_dev *pdev = priv->pdev;
@@ -122,7 +145,7 @@ void qtnf_pcie_fw_boot_done(struct qtnf_bus *bus, bool boot_success,
 	}
 
 	if (boot_success) {
-		qtnf_debugfs_init(bus, drv_name);
+		qtnf_debugfs_init(bus, DRV_NAME);
 		qtnf_debugfs_add_entry(bus, "mps", qtnf_dbg_mps_show);
 		qtnf_debugfs_add_entry(bus, "msi_enabled", qtnf_dbg_msi_show);
 		qtnf_debugfs_add_entry(bus, "shm_stats", qtnf_dbg_shm_stats);
@@ -133,9 +156,8 @@ void qtnf_pcie_fw_boot_done(struct qtnf_bus *bus, bool boot_success,
 	put_device(&pdev->dev);
 }
 
-static void qtnf_tune_pcie_mps(struct qtnf_pcie_bus_priv *priv)
+static void qtnf_tune_pcie_mps(struct pci_dev *pdev)
 {
-	struct pci_dev *pdev = priv->pdev;
 	struct pci_dev *parent;
 	int mps_p, mps_o, mps_m, mps;
 	int ret;
@@ -163,12 +185,10 @@ static void qtnf_tune_pcie_mps(struct qtnf_pcie_bus_priv *priv)
 	if (ret) {
 		pr_err("failed to set mps to %d, keep using current %d\n",
 		       mps, mps_o);
-		priv->mps = mps_o;
 		return;
 	}
 
 	pr_debug("set mps to %d (was %d, max %d)\n", mps, mps_o, mps_m);
-	priv->mps = mps;
 }
 
 static void qtnf_pcie_init_irq(struct qtnf_pcie_bus_priv *priv, bool use_msi)
@@ -194,20 +214,20 @@ static void qtnf_pcie_init_irq(struct qtnf_pcie_bus_priv *priv, bool use_msi)
 	}
 }
 
-static void __iomem *qtnf_map_bar(struct qtnf_pcie_bus_priv *priv, u8 index)
+static void __iomem *qtnf_map_bar(struct pci_dev *pdev, u8 index)
 {
 	void __iomem *vaddr;
 	dma_addr_t busaddr;
 	size_t len;
 	int ret;
 
-	ret = pcim_iomap_regions(priv->pdev, 1 << index, "qtnfmac_pcie");
+	ret = pcim_iomap_regions(pdev, 1 << index, "qtnfmac_pcie");
 	if (ret)
 		return IOMEM_ERR_PTR(ret);
 
-	busaddr = pci_resource_start(priv->pdev, index);
-	len = pci_resource_len(priv->pdev, index);
-	vaddr = pcim_iomap_table(priv->pdev)[index];
+	busaddr = pci_resource_start(pdev, index);
+	len = pci_resource_len(pdev, index);
+	vaddr = pcim_iomap_table(pdev)[index];
 	if (!vaddr)
 		return IOMEM_ERR_PTR(-ENOMEM);
 
@@ -217,31 +237,6 @@ static void __iomem *qtnf_map_bar(struct qtnf_pcie_bus_priv *priv, u8 index)
 	return vaddr;
 }
 
-static int qtnf_pcie_init_memory(struct qtnf_pcie_bus_priv *priv)
-{
-	int ret = -ENOMEM;
-
-	priv->sysctl_bar = qtnf_map_bar(priv, QTN_SYSCTL_BAR);
-	if (IS_ERR(priv->sysctl_bar)) {
-		pr_err("failed to map BAR%u\n", QTN_SYSCTL_BAR);
-		return ret;
-	}
-
-	priv->dmareg_bar = qtnf_map_bar(priv, QTN_DMA_BAR);
-	if (IS_ERR(priv->dmareg_bar)) {
-		pr_err("failed to map BAR%u\n", QTN_DMA_BAR);
-		return ret;
-	}
-
-	priv->epmem_bar = qtnf_map_bar(priv, QTN_SHMEM_BAR);
-	if (IS_ERR(priv->epmem_bar)) {
-		pr_err("failed to map BAR%u\n", QTN_SHMEM_BAR);
-		return ret;
-	}
-
-	return 0;
-}
-
 static void qtnf_pcie_control_rx_callback(void *arg, const u8 __iomem *buf,
 					  size_t len)
 {
@@ -282,27 +277,80 @@ void qtnf_pcie_init_shm_ipc(struct qtnf_pcie_bus_priv *priv,
 			  ipc_int, &rx_callback);
 }
 
-int qtnf_pcie_probe(struct pci_dev *pdev, size_t priv_size,
-		    const struct qtnf_bus_ops *bus_ops, u64 dma_mask,
-		    bool use_msi)
+static int qtnf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 {
 	struct qtnf_pcie_bus_priv *pcie_priv;
 	struct qtnf_bus *bus;
+	void __iomem *sysctl_bar;
+	void __iomem *epmem_bar;
+	void __iomem *dmareg_bar;
+	unsigned int chipid;
 	int ret;
 
-	bus = devm_kzalloc(&pdev->dev,
-			   sizeof(*bus) + priv_size, GFP_KERNEL);
+	if (!pci_is_pcie(pdev)) {
+		pr_err("device %s is not PCI Express\n", pci_name(pdev));
+		return -EIO;
+	}
+
+	qtnf_tune_pcie_mps(pdev);
+
+	ret = pcim_enable_device(pdev);
+	if (ret) {
+		pr_err("failed to init PCI device %x\n", pdev->device);
+		return ret;
+	}
+
+	pci_set_master(pdev);
+
+	sysctl_bar = qtnf_map_bar(pdev, QTN_SYSCTL_BAR);
+	if (IS_ERR(sysctl_bar)) {
+		pr_err("failed to map BAR%u\n", QTN_SYSCTL_BAR);
+		return ret;
+	}
+
+	dmareg_bar = qtnf_map_bar(pdev, QTN_DMA_BAR);
+	if (IS_ERR(dmareg_bar)) {
+		pr_err("failed to map BAR%u\n", QTN_DMA_BAR);
+		return ret;
+	}
+
+	epmem_bar = qtnf_map_bar(pdev, QTN_SHMEM_BAR);
+	if (IS_ERR(epmem_bar)) {
+		pr_err("failed to map BAR%u\n", QTN_SHMEM_BAR);
+		return ret;
+	}
+
+	chipid = qtnf_chip_id_get(sysctl_bar);
+
+	pr_info("identified device: %s\n", qtnf_chipid_to_string(chipid));
+
+	switch (chipid) {
+	case QTN_CHIP_ID_PEARL:
+	case QTN_CHIP_ID_PEARL_B:
+	case QTN_CHIP_ID_PEARL_C:
+		bus = qtnf_pcie_pearl_alloc(pdev);
+		break;
+	default:
+		pr_err("unsupported chip ID 0x%x\n", chipid);
+		return -ENOTSUPP;
+	}
+
 	if (!bus)
 		return -ENOMEM;
 
 	pcie_priv = get_bus_priv(bus);
-
 	pci_set_drvdata(pdev, bus);
-	bus->bus_ops = bus_ops;
 	bus->dev = &pdev->dev;
 	bus->fw_state = QTNF_FW_STATE_RESET;
 	pcie_priv->pdev = pdev;
 	pcie_priv->tx_stopped = 0;
+	pcie_priv->rx_bd_num = rx_bd_size_param;
+	pcie_priv->flashboot = flashboot;
+
+	if (fw_blksize_param > QTN_PCIE_MAX_FW_BUFSZ)
+		pcie_priv->fw_blksize =  QTN_PCIE_MAX_FW_BUFSZ;
+	else
+		pcie_priv->fw_blksize = fw_blksize_param;
 
 	mutex_init(&bus->bus_lock);
 	spin_lock_init(&pcie_priv->tx_lock);
@@ -317,53 +365,35 @@ int qtnf_pcie_probe(struct pci_dev *pdev, size_t priv_size,
 	pcie_priv->workqueue = create_singlethread_workqueue("QTNF_PCIE");
 	if (!pcie_priv->workqueue) {
 		pr_err("failed to alloc bus workqueue\n");
-		ret = -ENODEV;
-		goto err_init;
+		return -ENODEV;
+	}
+
+	ret = dma_set_mask_and_coherent(&pdev->dev,
+					pcie_priv->dma_mask_get_cb());
+	if (ret) {
+		pr_err("PCIE DMA coherent mask init failed 0x%llx\n",
+		       pcie_priv->dma_mask_get_cb());
+		goto error;
 	}
 
 	init_dummy_netdev(&bus->mux_dev);
-
-	if (!pci_is_pcie(pdev)) {
-		pr_err("device %s is not PCI Express\n", pci_name(pdev));
-		ret = -EIO;
-		goto err_base;
-	}
-
-	qtnf_tune_pcie_mps(pcie_priv);
-
-	ret = pcim_enable_device(pdev);
-	if (ret) {
-		pr_err("failed to init PCI device %x\n", pdev->device);
-		goto err_base;
-	} else {
-		pr_debug("successful init of PCI device %x\n", pdev->device);
-	}
-
-	ret = dma_set_mask_and_coherent(&pdev->dev, dma_mask);
-	if (ret) {
-		pr_err("PCIE DMA coherent mask init failed\n");
-		goto err_base;
-	}
-
-	pci_set_master(pdev);
 	qtnf_pcie_init_irq(pcie_priv, use_msi);
-
-	ret = qtnf_pcie_init_memory(pcie_priv);
-	if (ret < 0) {
-		pr_err("PCIE memory init failed\n");
-		goto err_base;
-	}
-
+	pcie_priv->sysctl_bar = sysctl_bar;
+	pcie_priv->dmareg_bar = dmareg_bar;
+	pcie_priv->epmem_bar = epmem_bar;
 	pci_save_state(pdev);
 
+	ret = pcie_priv->probe_cb(bus, tx_bd_size_param);
+	if (ret)
+		goto error;
+
+	qtnf_pcie_bringup_fw_async(bus);
 	return 0;
 
-err_base:
+error:
 	flush_workqueue(pcie_priv->workqueue);
 	destroy_workqueue(pcie_priv->workqueue);
-err_init:
 	pci_set_drvdata(pdev, NULL);
-
 	return ret;
 }
 
@@ -373,8 +403,17 @@ static void qtnf_pcie_free_shm_ipc(struct qtnf_pcie_bus_priv *priv)
 	qtnf_shm_ipc_free(&priv->shm_ipc_ep_out);
 }
 
-void qtnf_pcie_remove(struct qtnf_bus *bus, struct qtnf_pcie_bus_priv *priv)
+static void qtnf_pcie_remove(struct pci_dev *dev)
 {
+	struct qtnf_pcie_bus_priv *priv;
+	struct qtnf_bus *bus;
+
+	bus = pci_get_drvdata(dev);
+	if (!bus)
+		return;
+
+	priv = get_bus_priv(bus);
+
 	cancel_work_sync(&bus->fw_work);
 
 	if (bus->fw_state == QTNF_FW_STATE_ACTIVE ||
@@ -388,5 +427,77 @@ void qtnf_pcie_remove(struct qtnf_bus *bus, struct qtnf_pcie_bus_priv *priv)
 
 	qtnf_pcie_free_shm_ipc(priv);
 	qtnf_debugfs_remove(bus);
+	priv->remove_cb(bus);
 	pci_set_drvdata(priv->pdev, NULL);
 }
+
+#ifdef CONFIG_PM_SLEEP
+static int qtnf_pcie_suspend(struct device *dev)
+{
+	struct qtnf_pcie_bus_priv *priv;
+	struct qtnf_bus *bus;
+
+	bus = pci_get_drvdata(to_pci_dev(dev));
+	if (!bus)
+		return -EFAULT;
+
+	priv = get_bus_priv(bus);
+	return priv->suspend_cb(bus);
+}
+
+static int qtnf_pcie_resume(struct device *dev)
+{
+	struct qtnf_pcie_bus_priv *priv;
+	struct qtnf_bus *bus;
+
+	bus = pci_get_drvdata(to_pci_dev(dev));
+	if (!bus)
+		return -EFAULT;
+
+	priv = get_bus_priv(bus);
+	return priv->resume_cb(bus);
+}
+
+/* Power Management Hooks */
+static SIMPLE_DEV_PM_OPS(qtnf_pcie_pm_ops, qtnf_pcie_suspend,
+			 qtnf_pcie_resume);
+#endif
+
+static const struct pci_device_id qtnf_pcie_devid_table[] = {
+	{
+		PCIE_VENDOR_ID_QUANTENNA, PCIE_DEVICE_ID_QTN_PEARL,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+	},
+	{ },
+};
+
+MODULE_DEVICE_TABLE(pci, qtnf_pcie_devid_table);
+
+static struct pci_driver qtnf_pcie_drv_data = {
+	.name = DRV_NAME,
+	.id_table = qtnf_pcie_devid_table,
+	.probe = qtnf_pcie_probe,
+	.remove = qtnf_pcie_remove,
+#ifdef CONFIG_PM_SLEEP
+	.driver = {
+		.pm = &qtnf_pcie_pm_ops,
+	},
+#endif
+};
+
+static int __init qtnf_pcie_register(void)
+{
+	return pci_register_driver(&qtnf_pcie_drv_data);
+}
+
+static void __exit qtnf_pcie_exit(void)
+{
+	pci_unregister_driver(&qtnf_pcie_drv_data);
+}
+
+module_init(qtnf_pcie_register);
+module_exit(qtnf_pcie_exit);
+
+MODULE_AUTHOR("Quantenna Communications");
+MODULE_DESCRIPTION("Quantenna PCIe bus driver for 802.11 wireless LAN.");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie_priv.h b/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie_priv.h
index 5c70fb4c0f92..7c742c56efaf 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie_priv.h
+++ b/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie_priv.h
@@ -23,9 +23,14 @@
 struct qtnf_pcie_bus_priv {
 	struct pci_dev *pdev;
 
+	int (*probe_cb)(struct qtnf_bus *bus, unsigned int tx_bd_size);
+	void (*remove_cb)(struct qtnf_bus *bus);
+	int (*suspend_cb)(struct qtnf_bus *bus);
+	int (*resume_cb)(struct qtnf_bus *bus);
+	u64 (*dma_mask_get_cb)(void);
+
 	spinlock_t tx_reclaim_lock;
 	spinlock_t tx_lock;
-	int mps;
 
 	struct workqueue_struct *workqueue;
 	struct tasklet_struct reclaim_tq;
@@ -43,6 +48,8 @@ struct qtnf_pcie_bus_priv {
 	struct sk_buff **tx_skb;
 	struct sk_buff **rx_skb;
 
+	unsigned int fw_blksize;
+
 	u32 rx_bd_w_index;
 	u32 rx_bd_r_index;
 
@@ -58,21 +65,17 @@ struct qtnf_pcie_bus_priv {
 
 	u8 msi_enabled;
 	u8 tx_stopped;
+	bool flashboot;
 };
 
 int qtnf_pcie_control_tx(struct qtnf_bus *bus, struct sk_buff *skb);
 int qtnf_pcie_alloc_skb_array(struct qtnf_pcie_bus_priv *priv);
-void qtnf_pcie_bringup_fw_async(struct qtnf_bus *bus);
-void qtnf_pcie_fw_boot_done(struct qtnf_bus *bus, bool boot_success,
-			    const char *drv_name);
+void qtnf_pcie_fw_boot_done(struct qtnf_bus *bus, bool boot_success);
 void qtnf_pcie_init_shm_ipc(struct qtnf_pcie_bus_priv *priv,
 			    struct qtnf_shm_ipc_region __iomem *ipc_tx_reg,
 			    struct qtnf_shm_ipc_region __iomem *ipc_rx_reg,
 			    const struct qtnf_shm_ipc_int *ipc_int);
-int qtnf_pcie_probe(struct pci_dev *pdev, size_t priv_size,
-		    const struct qtnf_bus_ops *bus_ops, u64 dma_mask,
-		    bool use_msi);
-void qtnf_pcie_remove(struct qtnf_bus *bus, struct qtnf_pcie_bus_priv *priv);
+struct qtnf_bus *qtnf_pcie_pearl_alloc(struct pci_dev *pdev);
 
 static inline void qtnf_non_posted_write(u32 val, void __iomem *basereg)
 {
diff --git a/drivers/net/wireless/quantenna/qtnfmac/pcie/pearl_pcie.c b/drivers/net/wireless/quantenna/qtnfmac/pcie/pearl_pcie.c
index 95c7b95c6f8a..1f5facbb8905 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/pcie/pearl_pcie.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/pcie/pearl_pcie.c
@@ -2,7 +2,6 @@
 /* Copyright (c) 2018 Quantenna Communications */
 
 #include <linux/kernel.h>
-#include <linux/module.h>
 #include <linux/firmware.h>
 #include <linux/pci.h>
 #include <linux/vmalloc.h>
@@ -24,23 +23,7 @@
 #include "shm_ipc.h"
 #include "debug.h"
 
-static bool use_msi = true;
-module_param(use_msi, bool, 0644);
-MODULE_PARM_DESC(use_msi, "set 0 to use legacy interrupt");
-
-static unsigned int tx_bd_size_param = 32;
-module_param(tx_bd_size_param, uint, 0644);
-MODULE_PARM_DESC(tx_bd_size_param, "Tx descriptors queue size, power of two");
-
-static unsigned int rx_bd_size_param = 256;
-module_param(rx_bd_size_param, uint, 0644);
-MODULE_PARM_DESC(rx_bd_size_param, "Rx descriptors queue size, power of two");
-
-static u8 flashboot = 1;
-module_param(flashboot, byte, 0644);
-MODULE_PARM_DESC(flashboot, "set to 0 to use FW binary file on FS");
-
-#define DRV_NAME	"qtnfmac_pearl_pcie"
+#define PEARL_TX_BD_SIZE_DEFAULT	32
 
 struct qtnf_pearl_bda {
 	__le16 bda_len;
@@ -415,30 +398,28 @@ static int pearl_hhbm_init(struct qtnf_pcie_pearl_state *ps)
 	return 0;
 }
 
-static int qtnf_pcie_pearl_init_xfer(struct qtnf_pcie_pearl_state *ps)
+static int qtnf_pcie_pearl_init_xfer(struct qtnf_pcie_pearl_state *ps,
+				     unsigned int tx_bd_size)
 {
 	struct qtnf_pcie_bus_priv *priv = &ps->base;
 	int ret;
 	u32 val;
 
-	priv->tx_bd_num = tx_bd_size_param;
-	priv->rx_bd_num = rx_bd_size_param;
+	if (tx_bd_size == 0)
+		tx_bd_size = PEARL_TX_BD_SIZE_DEFAULT;
+
+	val = tx_bd_size * sizeof(struct qtnf_pearl_tx_bd);
+
+	if (!is_power_of_2(tx_bd_size) || val > PCIE_HHBM_MAX_SIZE) {
+		pr_warn("bad tx_bd_size value %u\n", tx_bd_size);
+		priv->tx_bd_num = PEARL_TX_BD_SIZE_DEFAULT;
+	} else {
+		priv->tx_bd_num = tx_bd_size;
+	}
+
 	priv->rx_bd_w_index = 0;
 	priv->rx_bd_r_index = 0;
 
-	if (!priv->tx_bd_num || !is_power_of_2(priv->tx_bd_num)) {
-		pr_err("tx_bd_size_param %u is not power of two\n",
-		       priv->tx_bd_num);
-		return -EINVAL;
-	}
-
-	val = priv->tx_bd_num * sizeof(struct qtnf_pearl_tx_bd);
-	if (val > PCIE_HHBM_MAX_SIZE) {
-		pr_err("tx_bd_size_param %u is too large\n",
-		       priv->tx_bd_num);
-		return -EINVAL;
-	}
-
 	if (!priv->rx_bd_num || !is_power_of_2(priv->rx_bd_num)) {
 		pr_err("rx_bd_size_param %u is not power of two\n",
 		       priv->rx_bd_num);
@@ -1006,7 +987,7 @@ static void qtnf_pearl_fw_work_handler(struct work_struct *work)
 	const char *fwname = QTN_PCI_PEARL_FW_NAME;
 	bool fw_boot_success = false;
 
-	if (flashboot) {
+	if (ps->base.flashboot) {
 		state |= QTN_RC_FW_FLASHBOOT;
 	} else {
 		ret = request_firmware(&fw, fwname, &pdev->dev);
@@ -1022,7 +1003,7 @@ static void qtnf_pearl_fw_work_handler(struct work_struct *work)
 			    QTN_FW_DL_TIMEOUT_MS)) {
 		pr_err("card is not ready\n");
 
-		if (!flashboot)
+		if (!ps->base.flashboot)
 			release_firmware(fw);
 
 		goto fw_load_exit;
@@ -1030,7 +1011,7 @@ static void qtnf_pearl_fw_work_handler(struct work_struct *work)
 
 	qtnf_clear_state(&ps->bda->bda_ep_state, QTN_EP_FW_LOADRDY);
 
-	if (flashboot) {
+	if (ps->base.flashboot) {
 		pr_info("booting firmware from flash\n");
 
 	} else {
@@ -1061,7 +1042,7 @@ static void qtnf_pearl_fw_work_handler(struct work_struct *work)
 	fw_boot_success = true;
 
 fw_load_exit:
-	qtnf_pcie_fw_boot_done(bus, fw_boot_success, DRV_NAME);
+	qtnf_pcie_fw_boot_done(bus, fw_boot_success);
 
 	if (fw_boot_success) {
 		qtnf_debugfs_add_entry(bus, "hdp_stats", qtnf_dbg_hdp_stats);
@@ -1077,74 +1058,34 @@ static void qtnf_pearl_reclaim_tasklet_fn(unsigned long data)
 	qtnf_en_txdone_irq(ps);
 }
 
-static int qtnf_pearl_check_chip_id(struct qtnf_pcie_pearl_state *ps)
+static u64 qtnf_pearl_dma_mask_get(void)
 {
-	unsigned int chipid;
-
-	chipid = qtnf_chip_id_get(ps->base.sysctl_bar);
-
-	switch (chipid) {
-	case QTN_CHIP_ID_PEARL:
-	case QTN_CHIP_ID_PEARL_B:
-	case QTN_CHIP_ID_PEARL_C:
-		pr_info("chip ID is 0x%x\n", chipid);
-		break;
-	default:
-		pr_err("incorrect chip ID 0x%x\n", chipid);
-		return -ENODEV;
-	}
-
-	return 0;
+#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
+	return DMA_BIT_MASK(64);
+#else
+	return DMA_BIT_MASK(32);
+#endif
 }
 
-static int qtnf_pcie_pearl_probe(struct pci_dev *pdev,
-				 const struct pci_device_id *id)
+static int qtnf_pcie_pearl_probe(struct qtnf_bus *bus, unsigned int tx_bd_size)
 {
 	struct qtnf_shm_ipc_int ipc_int;
-	struct qtnf_pcie_pearl_state *ps;
-	struct qtnf_bus *bus;
+	struct qtnf_pcie_pearl_state *ps = get_bus_priv(bus);
+	struct pci_dev *pdev = ps->base.pdev;
 	int ret;
-	u64 dma_mask;
-
-#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
-	dma_mask = DMA_BIT_MASK(64);
-#else
-	dma_mask = DMA_BIT_MASK(32);
-#endif
-
-	ret = qtnf_pcie_probe(pdev, sizeof(*ps), &qtnf_pcie_pearl_bus_ops,
-			      dma_mask, use_msi);
-	if (ret)
-		return ret;
-
-	bus = pci_get_drvdata(pdev);
-	ps = get_bus_priv(bus);
 
+	bus->bus_ops = &qtnf_pcie_pearl_bus_ops;
 	spin_lock_init(&ps->irq_lock);
-
-	tasklet_init(&ps->base.reclaim_tq, qtnf_pearl_reclaim_tasklet_fn,
-		     (unsigned long)ps);
-	netif_napi_add(&bus->mux_dev, &bus->mux_napi,
-		       qtnf_pcie_pearl_rx_poll, 10);
 	INIT_WORK(&bus->fw_work, qtnf_pearl_fw_work_handler);
 
 	ps->pcie_reg_base = ps->base.dmareg_bar;
 	ps->bda = ps->base.epmem_bar;
 	writel(ps->base.msi_enabled, &ps->bda->bda_rc_msi_enabled);
 
-	ipc_int.fn = qtnf_pcie_pearl_ipc_gen_ep_int;
-	ipc_int.arg = ps;
-	qtnf_pcie_init_shm_ipc(&ps->base, &ps->bda->bda_shm_reg1,
-			       &ps->bda->bda_shm_reg2, &ipc_int);
-
-	ret = qtnf_pearl_check_chip_id(ps);
-	if (ret)
-		goto error;
-
-	ret = qtnf_pcie_pearl_init_xfer(ps);
+	ret = qtnf_pcie_pearl_init_xfer(ps, tx_bd_size);
 	if (ret) {
 		pr_err("PCIE xfer init failed\n");
-		goto error;
+		return ret;
 	}
 
 	/* init default irq settings */
@@ -1155,95 +1096,63 @@ static int qtnf_pcie_pearl_probe(struct pci_dev *pdev,
 
 	ret = devm_request_irq(&pdev->dev, pdev->irq,
 			       &qtnf_pcie_pearl_interrupt, 0,
-			       "qtnf_pcie_irq", (void *)bus);
+			       "qtnf_pearl_irq", (void *)bus);
 	if (ret) {
 		pr_err("failed to request pcie irq %d\n", pdev->irq);
-		goto err_xfer;
+		qtnf_pearl_free_xfer_buffers(ps);
+		return ret;
 	}
 
-	qtnf_pcie_bringup_fw_async(bus);
+	tasklet_init(&ps->base.reclaim_tq, qtnf_pearl_reclaim_tasklet_fn,
+		     (unsigned long)ps);
+	netif_napi_add(&bus->mux_dev, &bus->mux_napi,
+		       qtnf_pcie_pearl_rx_poll, 10);
+
+	ipc_int.fn = qtnf_pcie_pearl_ipc_gen_ep_int;
+	ipc_int.arg = ps;
+	qtnf_pcie_init_shm_ipc(&ps->base, &ps->bda->bda_shm_reg1,
+			       &ps->bda->bda_shm_reg2, &ipc_int);
 
 	return 0;
-
-err_xfer:
-	qtnf_pearl_free_xfer_buffers(ps);
-error:
-	qtnf_pcie_remove(bus, &ps->base);
-
-	return ret;
 }
 
-static void qtnf_pcie_pearl_remove(struct pci_dev *pdev)
+static void qtnf_pcie_pearl_remove(struct qtnf_bus *bus)
 {
-	struct qtnf_pcie_pearl_state *ps;
-	struct qtnf_bus *bus;
+	struct qtnf_pcie_pearl_state *ps = get_bus_priv(bus);
 
-	bus = pci_get_drvdata(pdev);
-	if (!bus)
-		return;
-
-	ps = get_bus_priv(bus);
-
-	qtnf_pcie_remove(bus, &ps->base);
 	qtnf_pearl_reset_ep(ps);
 	qtnf_pearl_free_xfer_buffers(ps);
 }
 
 #ifdef CONFIG_PM_SLEEP
-static int qtnf_pcie_pearl_suspend(struct device *dev)
+static int qtnf_pcie_pearl_suspend(struct qtnf_bus *bus)
 {
 	return -EOPNOTSUPP;
 }
 
-static int qtnf_pcie_pearl_resume(struct device *dev)
+static int qtnf_pcie_pearl_resume(struct qtnf_bus *bus)
 {
 	return 0;
 }
-#endif /* CONFIG_PM_SLEEP */
-
-#ifdef CONFIG_PM_SLEEP
-/* Power Management Hooks */
-static SIMPLE_DEV_PM_OPS(qtnf_pcie_pearl_pm_ops, qtnf_pcie_pearl_suspend,
-			 qtnf_pcie_pearl_resume);
 #endif
 
-static const struct pci_device_id qtnf_pcie_devid_table[] = {
-	{
-		PCIE_VENDOR_ID_QUANTENNA, PCIE_DEVICE_ID_QTN_PEARL,
-		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
-	},
-	{ },
-};
+struct qtnf_bus *qtnf_pcie_pearl_alloc(struct pci_dev *pdev)
+{
+	struct qtnf_bus *bus;
+	struct qtnf_pcie_pearl_state *ps;
 
-MODULE_DEVICE_TABLE(pci, qtnf_pcie_devid_table);
+	bus = devm_kzalloc(&pdev->dev, sizeof(*bus) + sizeof(*ps), GFP_KERNEL);
+	if (!bus)
+		return NULL;
 
-static struct pci_driver qtnf_pcie_pearl_drv_data = {
-	.name = DRV_NAME,
-	.id_table = qtnf_pcie_devid_table,
-	.probe = qtnf_pcie_pearl_probe,
-	.remove = qtnf_pcie_pearl_remove,
+	ps = get_bus_priv(bus);
+	ps->base.probe_cb = qtnf_pcie_pearl_probe;
+	ps->base.remove_cb = qtnf_pcie_pearl_remove;
+	ps->base.dma_mask_get_cb = qtnf_pearl_dma_mask_get;
 #ifdef CONFIG_PM_SLEEP
-	.driver = {
-		.pm = &qtnf_pcie_pearl_pm_ops,
-	},
+	ps->base.resume_cb = qtnf_pcie_pearl_resume;
+	ps->base.suspend_cb = qtnf_pcie_pearl_suspend;
 #endif
-};
 
-static int __init qtnf_pcie_pearl_register(void)
-{
-	pr_info("register Quantenna QSR10g FullMAC PCIE driver\n");
-	return pci_register_driver(&qtnf_pcie_pearl_drv_data);
+	return bus;
 }
-
-static void __exit qtnf_pcie_pearl_exit(void)
-{
-	pr_info("unregister Quantenna QSR10g FullMAC PCIE driver\n");
-	pci_unregister_driver(&qtnf_pcie_pearl_drv_data);
-}
-
-module_init(qtnf_pcie_pearl_register);
-module_exit(qtnf_pcie_pearl_exit);
-
-MODULE_AUTHOR("Quantenna Communications");
-MODULE_DESCRIPTION("Quantenna QSR10g PCIe bus driver for 802.11 wireless LAN.");
-MODULE_LICENSE("GPL");
diff --git a/drivers/net/wireless/quantenna/qtnfmac/util.c b/drivers/net/wireless/quantenna/qtnfmac/util.c
index e745733ba417..dfe3fe8a42c1 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/util.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/util.c
@@ -15,6 +15,7 @@
  */
 
 #include "util.h"
+#include "qtn_hw_ids.h"
 
 void qtnf_sta_list_init(struct qtnf_sta_list *list)
 {
@@ -116,3 +117,18 @@ void qtnf_sta_list_free(struct qtnf_sta_list *list)
 
 	INIT_LIST_HEAD(&list->head);
 }
+
+const char *qtnf_chipid_to_string(unsigned long chip_id)
+{
+	switch (chip_id) {
+	case QTN_CHIP_ID_PEARL:
+		return "Pearl revA";
+	case QTN_CHIP_ID_PEARL_B:
+		return "Pearl revB";
+	case QTN_CHIP_ID_PEARL_C:
+		return "Pearl revC";
+	default:
+		return "unknown";
+	}
+}
+EXPORT_SYMBOL_GPL(qtnf_chipid_to_string);
diff --git a/drivers/net/wireless/quantenna/qtnfmac/util.h b/drivers/net/wireless/quantenna/qtnfmac/util.h
index 0d4d92b11540..b8744baac332 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/util.h
+++ b/drivers/net/wireless/quantenna/qtnfmac/util.h
@@ -20,6 +20,8 @@
 #include <linux/kernel.h>
 #include "core.h"
 
+const char *qtnf_chipid_to_string(unsigned long chip_id);
+
 void qtnf_sta_list_init(struct qtnf_sta_list *list);
 
 struct qtnf_sta_node *qtnf_sta_list_lookup(struct qtnf_sta_list *list,

From e401fa25cfa23df8b17960a656ff11f49facae84 Mon Sep 17 00:00:00 2001
From: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Date: Tue, 16 Oct 2018 10:23:58 +0000
Subject: [PATCH 058/124] qtnfmac: add support for Topaz chipsets

This patch adds support for QSR1000/QSR2000 family of chipsets
to qtnfmac_pcie platform driver.

QSR1000/QSR2000 (aka Topaz) is a family of 80MHz, 11ac Wave2,
4x4/2x4/2x2 chips, including single and dual band devices.
Depending on specific chip model and firmware in use, either
STA or both STA and AP modes are supported.

Patch adds Topaz support to qtnfmac_pcie driver. Proper platform
bus will be selected on probing based on chip ID.

Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Andrey Shevchenko <ashevchenko@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 .../net/wireless/quantenna/qtnfmac/Kconfig    |    5 +-
 .../net/wireless/quantenna/qtnfmac/Makefile   |    3 +-
 .../wireless/quantenna/qtnfmac/pcie/pcie.c    |    5 +-
 .../quantenna/qtnfmac/pcie/pcie_priv.h        |    1 +
 .../quantenna/qtnfmac/pcie/topaz_pcie.c       | 1219 +++++++++++++++++
 .../quantenna/qtnfmac/pcie/topaz_pcie_ipc.h   |   94 ++
 .../quantenna/qtnfmac/pcie/topaz_pcie_regs.h  |   45 +
 .../wireless/quantenna/qtnfmac/qtn_hw_ids.h   |    4 +-
 drivers/net/wireless/quantenna/qtnfmac/util.c |    2 +
 9 files changed, 1373 insertions(+), 5 deletions(-)
 create mode 100644 drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie.c
 create mode 100644 drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie_ipc.h
 create mode 100644 drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie_regs.h

diff --git a/drivers/net/wireless/quantenna/qtnfmac/Kconfig b/drivers/net/wireless/quantenna/qtnfmac/Kconfig
index 696c50066b53..6cf5202c3666 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/Kconfig
+++ b/drivers/net/wireless/quantenna/qtnfmac/Kconfig
@@ -5,7 +5,7 @@ config QTNFMAC
 	default y if QTNFMAC_PCIE=y
 
 config QTNFMAC_PCIE
-	tristate "Quantenna QSR10g PCIe support"
+	tristate "Quantenna QSR1000/QSR2000/QSR10g PCIe support"
 	default n
 	depends on PCI && CFG80211
 	select QTNFMAC
@@ -13,7 +13,8 @@ config QTNFMAC_PCIE
 	select CRC32
 	help
 	  This option adds support for wireless adapters based on Quantenna
-	  802.11ac QSR10g (aka Pearl) FullMAC chipset running over PCIe.
+	  802.11ac QSR10g (aka Pearl) and QSR1000/QSR2000 (aka Topaz)
+	  FullMAC chipsets running over PCIe.
 
 	  If you choose to build it as a module, two modules will be built:
 	  qtnfmac.ko and qtnfmac_pcie.ko.
diff --git a/drivers/net/wireless/quantenna/qtnfmac/Makefile b/drivers/net/wireless/quantenna/qtnfmac/Makefile
index d7e8185fddab..40dffbd2ea47 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/Makefile
+++ b/drivers/net/wireless/quantenna/qtnfmac/Makefile
@@ -24,6 +24,7 @@ obj-$(CONFIG_QTNFMAC_PCIE) += qtnfmac_pcie.o
 qtnfmac_pcie-objs += \
 	shm_ipc.o \
 	pcie/pcie.o \
-	pcie/pearl_pcie.o
+	pcie/pearl_pcie.o \
+	pcie/topaz_pcie.o
 
 qtnfmac_pcie-$(CONFIG_DEBUG_FS) += debug.o
diff --git a/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie.c b/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie.c
index 70dd8da5b0dc..c3a32effa6f0 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie.c
@@ -330,6 +330,9 @@ static int qtnf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	case QTN_CHIP_ID_PEARL_C:
 		bus = qtnf_pcie_pearl_alloc(pdev);
 		break;
+	case QTN_CHIP_ID_TOPAZ:
+		bus = qtnf_pcie_topaz_alloc(pdev);
+		break;
 	default:
 		pr_err("unsupported chip ID 0x%x\n", chipid);
 		return -ENOTSUPP;
@@ -465,7 +468,7 @@ static SIMPLE_DEV_PM_OPS(qtnf_pcie_pm_ops, qtnf_pcie_suspend,
 
 static const struct pci_device_id qtnf_pcie_devid_table[] = {
 	{
-		PCIE_VENDOR_ID_QUANTENNA, PCIE_DEVICE_ID_QTN_PEARL,
+		PCIE_VENDOR_ID_QUANTENNA, PCIE_DEVICE_ID_QSR,
 		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 	},
 	{ },
diff --git a/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie_priv.h b/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie_priv.h
index 7c742c56efaf..bbc074e1f34d 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie_priv.h
+++ b/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie_priv.h
@@ -76,6 +76,7 @@ void qtnf_pcie_init_shm_ipc(struct qtnf_pcie_bus_priv *priv,
 			    struct qtnf_shm_ipc_region __iomem *ipc_rx_reg,
 			    const struct qtnf_shm_ipc_int *ipc_int);
 struct qtnf_bus *qtnf_pcie_pearl_alloc(struct pci_dev *pdev);
+struct qtnf_bus *qtnf_pcie_topaz_alloc(struct pci_dev *pdev);
 
 static inline void qtnf_non_posted_write(u32 val, void __iomem *basereg)
 {
diff --git a/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie.c b/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie.c
new file mode 100644
index 000000000000..598edb814421
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie.c
@@ -0,0 +1,1219 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* Copyright (c) 2018 Quantenna Communications */
+
+#include <linux/kernel.h>
+#include <linux/firmware.h>
+#include <linux/pci.h>
+#include <linux/vmalloc.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/sched.h>
+#include <linux/crc32.h>
+#include <linux/completion.h>
+#include <linux/spinlock.h>
+#include <linux/circ_buf.h>
+
+#include "pcie_priv.h"
+#include "topaz_pcie_regs.h"
+#include "topaz_pcie_ipc.h"
+#include "qtn_hw_ids.h"
+#include "core.h"
+#include "bus.h"
+#include "shm_ipc.h"
+#include "debug.h"
+
+#define TOPAZ_TX_BD_SIZE_DEFAULT	128
+
+struct qtnf_topaz_tx_bd {
+	__le32 addr;
+	__le32 info;
+} __packed;
+
+struct qtnf_topaz_rx_bd {
+	__le32 addr;
+	__le32 info;
+} __packed;
+
+struct qtnf_extra_bd_params {
+	__le32 param1;
+	__le32 param2;
+	__le32 param3;
+	__le32 param4;
+} __packed;
+
+#define QTNF_BD_PARAM_OFFSET(n)	offsetof(struct qtnf_extra_bd_params, param##n)
+
+struct vmac_pkt_info {
+	__le32 addr;
+	__le32 info;
+};
+
+struct qtnf_topaz_bda {
+	__le16	bda_len;
+	__le16	bda_version;
+	__le32	bda_bootstate;
+	__le32	bda_dma_mask;
+	__le32	bda_dma_offset;
+	__le32	bda_flags;
+	__le32	bda_img;
+	__le32	bda_img_size;
+	__le32	bda_ep2h_irqstatus;
+	__le32	bda_h2ep_irqstatus;
+	__le32	bda_msi_addr;
+	u8	reserved1[56];
+	__le32	bda_flashsz;
+	u8	bda_boardname[PCIE_BDA_NAMELEN];
+	__le32	bda_pci_pre_status;
+	__le32	bda_pci_endian;
+	__le32	bda_pci_post_status;
+	__le32	bda_h2ep_txd_budget;
+	__le32	bda_ep2h_txd_budget;
+	__le32	bda_rc_rx_bd_base;
+	__le32	bda_rc_rx_bd_num;
+	__le32	bda_rc_tx_bd_base;
+	__le32	bda_rc_tx_bd_num;
+	u8	bda_ep_link_state;
+	u8	bda_rc_link_state;
+	u8	bda_rc_msi_enabled;
+	u8	reserved2;
+	__le32	bda_ep_next_pkt;
+	struct vmac_pkt_info request[QTN_PCIE_RC_TX_QUEUE_LEN];
+	struct qtnf_shm_ipc_region bda_shm_reg1 __aligned(4096);
+	struct qtnf_shm_ipc_region bda_shm_reg2 __aligned(4096);
+} __packed;
+
+struct qtnf_pcie_topaz_state {
+	struct qtnf_pcie_bus_priv base;
+	struct qtnf_topaz_bda __iomem *bda;
+
+	dma_addr_t dma_msi_dummy;
+	u32 dma_msi_imwr;
+
+	struct qtnf_topaz_tx_bd *tx_bd_vbase;
+	struct qtnf_topaz_rx_bd *rx_bd_vbase;
+
+	__le32 __iomem *ep_next_rx_pkt;
+	__le32 __iomem *txqueue_wake;
+	__le32 __iomem *ep_pmstate;
+
+	unsigned long rx_pkt_count;
+};
+
+static void qtnf_deassert_intx(struct qtnf_pcie_topaz_state *ts)
+{
+	void __iomem *reg = ts->base.sysctl_bar + TOPAZ_PCIE_CFG0_OFFSET;
+	u32 cfg;
+
+	cfg = readl(reg);
+	cfg &= ~TOPAZ_ASSERT_INTX;
+	qtnf_non_posted_write(cfg, reg);
+}
+
+static inline int qtnf_topaz_intx_asserted(struct qtnf_pcie_topaz_state *ts)
+{
+	void __iomem *reg = ts->base.sysctl_bar + TOPAZ_PCIE_CFG0_OFFSET;
+	u32 cfg = readl(reg);
+
+	return !!(cfg & TOPAZ_ASSERT_INTX);
+}
+
+static void qtnf_topaz_reset_ep(struct qtnf_pcie_topaz_state *ts)
+{
+	writel(TOPAZ_IPC_IRQ_WORD(TOPAZ_RC_RST_EP_IRQ),
+	       TOPAZ_LH_IPC4_INT(ts->base.sysctl_bar));
+	msleep(QTN_EP_RESET_WAIT_MS);
+	pci_restore_state(ts->base.pdev);
+}
+
+static void setup_rx_irqs(struct qtnf_pcie_topaz_state *ts)
+{
+	void __iomem *reg = PCIE_DMA_WR_DONE_IMWR_ADDR_LOW(ts->base.dmareg_bar);
+
+	ts->dma_msi_imwr = readl(reg);
+}
+
+static void enable_rx_irqs(struct qtnf_pcie_topaz_state *ts)
+{
+	void __iomem *reg = PCIE_DMA_WR_DONE_IMWR_ADDR_LOW(ts->base.dmareg_bar);
+
+	qtnf_non_posted_write(ts->dma_msi_imwr, reg);
+}
+
+static void disable_rx_irqs(struct qtnf_pcie_topaz_state *ts)
+{
+	void __iomem *reg = PCIE_DMA_WR_DONE_IMWR_ADDR_LOW(ts->base.dmareg_bar);
+
+	qtnf_non_posted_write(QTN_HOST_LO32(ts->dma_msi_dummy), reg);
+}
+
+static void qtnf_topaz_ipc_gen_ep_int(void *arg)
+{
+	struct qtnf_pcie_topaz_state *ts = arg;
+
+	writel(TOPAZ_IPC_IRQ_WORD(TOPAZ_RC_CTRL_IRQ),
+	       TOPAZ_CTL_M2L_INT(ts->base.sysctl_bar));
+}
+
+static int qtnf_is_state(__le32 __iomem *reg, u32 state)
+{
+	u32 s = readl(reg);
+
+	return (s == state);
+}
+
+static void qtnf_set_state(__le32 __iomem *reg, u32 state)
+{
+	qtnf_non_posted_write(state, reg);
+}
+
+static int qtnf_poll_state(__le32 __iomem *reg, u32 state, u32 delay_in_ms)
+{
+	u32 timeout = 0;
+
+	while ((qtnf_is_state(reg, state) == 0)) {
+		usleep_range(1000, 1200);
+		if (++timeout > delay_in_ms)
+			return -1;
+	}
+
+	return 0;
+}
+
+static int topaz_alloc_bd_table(struct qtnf_pcie_topaz_state *ts,
+				struct qtnf_topaz_bda __iomem *bda)
+{
+	struct qtnf_extra_bd_params __iomem *extra_params;
+	struct qtnf_pcie_bus_priv *priv = &ts->base;
+	dma_addr_t paddr;
+	void *vaddr;
+	int len;
+	int i;
+
+	/* bd table */
+
+	len = priv->tx_bd_num * sizeof(struct qtnf_topaz_tx_bd) +
+		priv->rx_bd_num * sizeof(struct qtnf_topaz_rx_bd) +
+			sizeof(struct qtnf_extra_bd_params);
+
+	vaddr = dmam_alloc_coherent(&priv->pdev->dev, len, &paddr, GFP_KERNEL);
+	if (!vaddr)
+		return -ENOMEM;
+
+	memset(vaddr, 0, len);
+
+	/* tx bd */
+
+	ts->tx_bd_vbase = vaddr;
+	qtnf_non_posted_write(paddr, &bda->bda_rc_tx_bd_base);
+
+	for (i = 0; i < priv->tx_bd_num; i++)
+		ts->tx_bd_vbase[i].info |= cpu_to_le32(QTN_BD_EMPTY);
+
+	pr_debug("TX descriptor table: vaddr=0x%p paddr=%pad\n", vaddr, &paddr);
+
+	priv->tx_bd_r_index = 0;
+	priv->tx_bd_w_index = 0;
+
+	/* rx bd */
+
+	vaddr = ((struct qtnf_topaz_tx_bd *)vaddr) + priv->tx_bd_num;
+	paddr += priv->tx_bd_num * sizeof(struct qtnf_topaz_tx_bd);
+
+	ts->rx_bd_vbase = vaddr;
+	qtnf_non_posted_write(paddr, &bda->bda_rc_rx_bd_base);
+
+	pr_debug("RX descriptor table: vaddr=0x%p paddr=%pad\n", vaddr, &paddr);
+
+	/* extra shared params */
+
+	vaddr = ((struct qtnf_topaz_rx_bd *)vaddr) + priv->rx_bd_num;
+	paddr += priv->rx_bd_num * sizeof(struct qtnf_topaz_rx_bd);
+
+	extra_params = (struct qtnf_extra_bd_params __iomem *)vaddr;
+
+	ts->ep_next_rx_pkt = &extra_params->param1;
+	qtnf_non_posted_write(paddr + QTNF_BD_PARAM_OFFSET(1),
+			      &bda->bda_ep_next_pkt);
+	ts->txqueue_wake = &extra_params->param2;
+	ts->ep_pmstate = &extra_params->param3;
+	ts->dma_msi_dummy = paddr + QTNF_BD_PARAM_OFFSET(4);
+
+	return 0;
+}
+
+static int
+topaz_skb2rbd_attach(struct qtnf_pcie_topaz_state *ts, u16 index, u32 wrap)
+{
+	struct qtnf_topaz_rx_bd *rxbd = &ts->rx_bd_vbase[index];
+	struct sk_buff *skb;
+	dma_addr_t paddr;
+
+	skb = __netdev_alloc_skb_ip_align(NULL, SKB_BUF_SIZE, GFP_ATOMIC);
+	if (!skb) {
+		ts->base.rx_skb[index] = NULL;
+		return -ENOMEM;
+	}
+
+	ts->base.rx_skb[index] = skb;
+
+	paddr = pci_map_single(ts->base.pdev, skb->data,
+			       SKB_BUF_SIZE, PCI_DMA_FROMDEVICE);
+	if (pci_dma_mapping_error(ts->base.pdev, paddr)) {
+		pr_err("skb mapping error: %pad\n", &paddr);
+		return -ENOMEM;
+	}
+
+	rxbd->addr = cpu_to_le32(QTN_HOST_LO32(paddr));
+	rxbd->info = cpu_to_le32(QTN_BD_EMPTY | wrap);
+
+	ts->base.rx_bd_w_index = index;
+
+	return 0;
+}
+
+static int topaz_alloc_rx_buffers(struct qtnf_pcie_topaz_state *ts)
+{
+	u16 i;
+	int ret = 0;
+
+	memset(ts->rx_bd_vbase, 0x0,
+	       ts->base.rx_bd_num * sizeof(struct qtnf_topaz_rx_bd));
+
+	for (i = 0; i < ts->base.rx_bd_num; i++) {
+		ret = topaz_skb2rbd_attach(ts, i, 0);
+		if (ret)
+			break;
+	}
+
+	ts->rx_bd_vbase[ts->base.rx_bd_num - 1].info |=
+						cpu_to_le32(QTN_BD_WRAP);
+
+	return ret;
+}
+
+/* all rx/tx activity should have ceased before calling this function */
+static void qtnf_topaz_free_xfer_buffers(struct qtnf_pcie_topaz_state *ts)
+{
+	struct qtnf_pcie_bus_priv *priv = &ts->base;
+	struct qtnf_topaz_rx_bd *rxbd;
+	struct qtnf_topaz_tx_bd *txbd;
+	struct sk_buff *skb;
+	dma_addr_t paddr;
+	int i;
+
+	/* free rx buffers */
+	for (i = 0; i < priv->rx_bd_num; i++) {
+		if (priv->rx_skb && priv->rx_skb[i]) {
+			rxbd = &ts->rx_bd_vbase[i];
+			skb = priv->rx_skb[i];
+			paddr = QTN_HOST_ADDR(0x0, le32_to_cpu(rxbd->addr));
+			pci_unmap_single(priv->pdev, paddr, SKB_BUF_SIZE,
+					 PCI_DMA_FROMDEVICE);
+			dev_kfree_skb_any(skb);
+			priv->rx_skb[i] = NULL;
+			rxbd->addr = 0;
+			rxbd->info = 0;
+		}
+	}
+
+	/* free tx buffers */
+	for (i = 0; i < priv->tx_bd_num; i++) {
+		if (priv->tx_skb && priv->tx_skb[i]) {
+			txbd = &ts->tx_bd_vbase[i];
+			skb = priv->tx_skb[i];
+			paddr = QTN_HOST_ADDR(0x0, le32_to_cpu(txbd->addr));
+			pci_unmap_single(priv->pdev, paddr, SKB_BUF_SIZE,
+					 PCI_DMA_TODEVICE);
+			dev_kfree_skb_any(skb);
+			priv->tx_skb[i] = NULL;
+			txbd->addr = 0;
+			txbd->info = 0;
+		}
+	}
+}
+
+static int qtnf_pcie_topaz_init_xfer(struct qtnf_pcie_topaz_state *ts,
+				     unsigned int tx_bd_size)
+{
+	struct qtnf_topaz_bda __iomem *bda = ts->bda;
+	struct qtnf_pcie_bus_priv *priv = &ts->base;
+	int ret;
+
+	if (tx_bd_size == 0)
+		tx_bd_size = TOPAZ_TX_BD_SIZE_DEFAULT;
+
+	/* check TX BD queue max length according to struct qtnf_topaz_bda */
+	if (tx_bd_size > QTN_PCIE_RC_TX_QUEUE_LEN) {
+		pr_warn("TX BD queue cannot exceed %d\n",
+			QTN_PCIE_RC_TX_QUEUE_LEN);
+		tx_bd_size = QTN_PCIE_RC_TX_QUEUE_LEN;
+	}
+
+	priv->tx_bd_num = tx_bd_size;
+	qtnf_non_posted_write(priv->tx_bd_num, &bda->bda_rc_tx_bd_num);
+	qtnf_non_posted_write(priv->rx_bd_num, &bda->bda_rc_rx_bd_num);
+
+	priv->rx_bd_w_index = 0;
+	priv->rx_bd_r_index = 0;
+
+	ret = qtnf_pcie_alloc_skb_array(priv);
+	if (ret) {
+		pr_err("failed to allocate skb array\n");
+		return ret;
+	}
+
+	ret = topaz_alloc_bd_table(ts, bda);
+	if (ret) {
+		pr_err("failed to allocate bd table\n");
+		return ret;
+	}
+
+	ret = topaz_alloc_rx_buffers(ts);
+	if (ret) {
+		pr_err("failed to allocate rx buffers\n");
+		return ret;
+	}
+
+	return ret;
+}
+
+static void qtnf_topaz_data_tx_reclaim(struct qtnf_pcie_topaz_state *ts)
+{
+	struct qtnf_pcie_bus_priv *priv = &ts->base;
+	struct qtnf_topaz_tx_bd *txbd;
+	struct sk_buff *skb;
+	unsigned long flags;
+	dma_addr_t paddr;
+	u32 tx_done_index;
+	int count = 0;
+	int i;
+
+	spin_lock_irqsave(&priv->tx_reclaim_lock, flags);
+
+	tx_done_index = readl(ts->ep_next_rx_pkt);
+	i = priv->tx_bd_r_index;
+
+	if (CIRC_CNT(priv->tx_bd_w_index, tx_done_index, priv->tx_bd_num))
+		writel(TOPAZ_IPC_IRQ_WORD(TOPAZ_RC_TX_DONE_IRQ),
+		       TOPAZ_LH_IPC4_INT(priv->sysctl_bar));
+
+	while (CIRC_CNT(tx_done_index, i, priv->tx_bd_num)) {
+		skb = priv->tx_skb[i];
+
+		if (likely(skb)) {
+			txbd = &ts->tx_bd_vbase[i];
+			paddr = QTN_HOST_ADDR(0x0, le32_to_cpu(txbd->addr));
+			pci_unmap_single(priv->pdev, paddr, skb->len,
+					 PCI_DMA_TODEVICE);
+
+			if (skb->dev) {
+				qtnf_update_tx_stats(skb->dev, skb);
+				if (unlikely(priv->tx_stopped)) {
+					qtnf_wake_all_queues(skb->dev);
+					priv->tx_stopped = 0;
+				}
+			}
+
+			dev_kfree_skb_any(skb);
+		}
+
+		priv->tx_skb[i] = NULL;
+		count++;
+
+		if (++i >= priv->tx_bd_num)
+			i = 0;
+	}
+
+	priv->tx_reclaim_done += count;
+	priv->tx_reclaim_req++;
+	priv->tx_bd_r_index = i;
+
+	spin_unlock_irqrestore(&priv->tx_reclaim_lock, flags);
+}
+
+static void qtnf_try_stop_xmit(struct qtnf_bus *bus, struct net_device *ndev)
+{
+	struct qtnf_pcie_topaz_state *ts = (void *)get_bus_priv(bus);
+
+	if (ndev) {
+		netif_tx_stop_all_queues(ndev);
+		ts->base.tx_stopped = 1;
+	}
+
+	writel(0x0, ts->txqueue_wake);
+
+	/* sync up tx queue status before generating interrupt */
+	dma_wmb();
+
+	/* send irq to card: tx stopped */
+	writel(TOPAZ_IPC_IRQ_WORD(TOPAZ_RC_TX_STOP_IRQ),
+	       TOPAZ_LH_IPC4_INT(ts->base.sysctl_bar));
+
+	/* schedule reclaim attempt */
+	tasklet_hi_schedule(&ts->base.reclaim_tq);
+}
+
+static void qtnf_try_wake_xmit(struct qtnf_bus *bus, struct net_device *ndev)
+{
+	struct qtnf_pcie_topaz_state *ts = get_bus_priv(bus);
+	int ready;
+
+	ready = readl(ts->txqueue_wake);
+	if (ready) {
+		netif_wake_queue(ndev);
+	} else {
+		/* re-send irq to card: tx stopped */
+		writel(TOPAZ_IPC_IRQ_WORD(TOPAZ_RC_TX_STOP_IRQ),
+		       TOPAZ_LH_IPC4_INT(ts->base.sysctl_bar));
+	}
+}
+
+static int qtnf_tx_queue_ready(struct qtnf_pcie_topaz_state *ts)
+{
+	struct qtnf_pcie_bus_priv *priv = &ts->base;
+
+	if (!CIRC_SPACE(priv->tx_bd_w_index, priv->tx_bd_r_index,
+			priv->tx_bd_num)) {
+		qtnf_topaz_data_tx_reclaim(ts);
+
+		if (!CIRC_SPACE(priv->tx_bd_w_index, priv->tx_bd_r_index,
+				priv->tx_bd_num)) {
+			priv->tx_full_count++;
+			return 0;
+		}
+	}
+
+	return 1;
+}
+
+static int qtnf_pcie_data_tx(struct qtnf_bus *bus, struct sk_buff *skb)
+{
+	struct qtnf_pcie_topaz_state *ts = (void *)get_bus_priv(bus);
+	struct qtnf_pcie_bus_priv *priv = &ts->base;
+	struct qtnf_topaz_bda __iomem *bda = ts->bda;
+	struct qtnf_topaz_tx_bd *txbd;
+	dma_addr_t skb_paddr;
+	unsigned long flags;
+	int ret = 0;
+	int len;
+	int i;
+
+	spin_lock_irqsave(&priv->tx_lock, flags);
+
+	if (!qtnf_tx_queue_ready(ts)) {
+		qtnf_try_stop_xmit(bus, skb->dev);
+		spin_unlock_irqrestore(&priv->tx_lock, flags);
+		return NETDEV_TX_BUSY;
+	}
+
+	i = priv->tx_bd_w_index;
+	priv->tx_skb[i] = skb;
+	len = skb->len;
+
+	skb_paddr = pci_map_single(priv->pdev, skb->data,
+				   skb->len, PCI_DMA_TODEVICE);
+	if (pci_dma_mapping_error(priv->pdev, skb_paddr)) {
+		ret = -ENOMEM;
+		goto tx_done;
+	}
+
+	txbd = &ts->tx_bd_vbase[i];
+	txbd->addr = cpu_to_le32(QTN_HOST_LO32(skb_paddr));
+
+	writel(QTN_HOST_LO32(skb_paddr), &bda->request[i].addr);
+	writel(len | QTN_PCIE_TX_VALID_PKT, &bda->request[i].info);
+
+	/* sync up descriptor updates before generating interrupt */
+	dma_wmb();
+
+	/* generate irq to card: tx done */
+	writel(TOPAZ_IPC_IRQ_WORD(TOPAZ_RC_TX_DONE_IRQ),
+	       TOPAZ_LH_IPC4_INT(priv->sysctl_bar));
+
+	if (++i >= priv->tx_bd_num)
+		i = 0;
+
+	priv->tx_bd_w_index = i;
+
+tx_done:
+	if (ret) {
+		if (skb->dev)
+			skb->dev->stats.tx_dropped++;
+		dev_kfree_skb_any(skb);
+	}
+
+	priv->tx_done_count++;
+	spin_unlock_irqrestore(&priv->tx_lock, flags);
+
+	qtnf_topaz_data_tx_reclaim(ts);
+
+	return NETDEV_TX_OK;
+}
+
+static irqreturn_t qtnf_pcie_topaz_interrupt(int irq, void *data)
+{
+	struct qtnf_bus *bus = (struct qtnf_bus *)data;
+	struct qtnf_pcie_topaz_state *ts = (void *)get_bus_priv(bus);
+	struct qtnf_pcie_bus_priv *priv = &ts->base;
+
+	if (!priv->msi_enabled && !qtnf_topaz_intx_asserted(ts))
+		return IRQ_NONE;
+
+	priv->pcie_irq_count++;
+
+	qtnf_shm_ipc_irq_handler(&priv->shm_ipc_ep_in);
+	qtnf_shm_ipc_irq_handler(&priv->shm_ipc_ep_out);
+
+	if (napi_schedule_prep(&bus->mux_napi)) {
+		disable_rx_irqs(ts);
+		__napi_schedule(&bus->mux_napi);
+	}
+
+	tasklet_hi_schedule(&priv->reclaim_tq);
+
+	if (!priv->msi_enabled)
+		qtnf_deassert_intx(ts);
+
+	return IRQ_HANDLED;
+}
+
+static int qtnf_rx_data_ready(struct qtnf_pcie_topaz_state *ts)
+{
+	u16 index = ts->base.rx_bd_r_index;
+	struct qtnf_topaz_rx_bd *rxbd;
+	u32 descw;
+
+	rxbd = &ts->rx_bd_vbase[index];
+	descw = le32_to_cpu(rxbd->info);
+
+	if (descw & QTN_BD_EMPTY)
+		return 0;
+
+	return 1;
+}
+
+static int qtnf_topaz_rx_poll(struct napi_struct *napi, int budget)
+{
+	struct qtnf_bus *bus = container_of(napi, struct qtnf_bus, mux_napi);
+	struct qtnf_pcie_topaz_state *ts = (void *)get_bus_priv(bus);
+	struct qtnf_pcie_bus_priv *priv = &ts->base;
+	struct net_device *ndev = NULL;
+	struct sk_buff *skb = NULL;
+	int processed = 0;
+	struct qtnf_topaz_rx_bd *rxbd;
+	dma_addr_t skb_paddr;
+	int consume;
+	u32 descw;
+	u32 poffset;
+	u32 psize;
+	u16 r_idx;
+	u16 w_idx;
+	int ret;
+
+	while (processed < budget) {
+		if (!qtnf_rx_data_ready(ts))
+			goto rx_out;
+
+		r_idx = priv->rx_bd_r_index;
+		rxbd = &ts->rx_bd_vbase[r_idx];
+		descw = le32_to_cpu(rxbd->info);
+
+		skb = priv->rx_skb[r_idx];
+		poffset = QTN_GET_OFFSET(descw);
+		psize = QTN_GET_LEN(descw);
+		consume = 1;
+
+		if (descw & QTN_BD_EMPTY) {
+			pr_warn("skip invalid rxbd[%d]\n", r_idx);
+			consume = 0;
+		}
+
+		if (!skb) {
+			pr_warn("skip missing rx_skb[%d]\n", r_idx);
+			consume = 0;
+		}
+
+		if (skb && (skb_tailroom(skb) <  psize)) {
+			pr_err("skip packet with invalid length: %u > %u\n",
+			       psize, skb_tailroom(skb));
+			consume = 0;
+		}
+
+		if (skb) {
+			skb_paddr = QTN_HOST_ADDR(0x0, le32_to_cpu(rxbd->addr));
+			pci_unmap_single(priv->pdev, skb_paddr, SKB_BUF_SIZE,
+					 PCI_DMA_FROMDEVICE);
+		}
+
+		if (consume) {
+			skb_reserve(skb, poffset);
+			skb_put(skb, psize);
+			ndev = qtnf_classify_skb(bus, skb);
+			if (likely(ndev)) {
+				qtnf_update_rx_stats(ndev, skb);
+				skb->protocol = eth_type_trans(skb, ndev);
+				netif_receive_skb(skb);
+			} else {
+				pr_debug("drop untagged skb\n");
+				bus->mux_dev.stats.rx_dropped++;
+				dev_kfree_skb_any(skb);
+			}
+		} else {
+			if (skb) {
+				bus->mux_dev.stats.rx_dropped++;
+				dev_kfree_skb_any(skb);
+			}
+		}
+
+		/* notify card about recv packets once per several packets */
+		if (((++ts->rx_pkt_count) & RX_DONE_INTR_MSK) == 0)
+			writel(TOPAZ_IPC_IRQ_WORD(TOPAZ_RC_RX_DONE_IRQ),
+			       TOPAZ_LH_IPC4_INT(priv->sysctl_bar));
+
+		priv->rx_skb[r_idx] = NULL;
+		if (++r_idx >= priv->rx_bd_num)
+			r_idx = 0;
+
+		priv->rx_bd_r_index = r_idx;
+
+		/* repalce processed buffer by a new one */
+		w_idx = priv->rx_bd_w_index;
+		while (CIRC_SPACE(priv->rx_bd_w_index, priv->rx_bd_r_index,
+				  priv->rx_bd_num) > 0) {
+			if (++w_idx >= priv->rx_bd_num)
+				w_idx = 0;
+
+			ret = topaz_skb2rbd_attach(ts, w_idx,
+						   descw & QTN_BD_WRAP);
+			if (ret) {
+				pr_err("failed to allocate new rx_skb[%d]\n",
+				       w_idx);
+				break;
+			}
+		}
+
+		processed++;
+	}
+
+rx_out:
+	if (processed < budget) {
+		napi_complete(napi);
+		enable_rx_irqs(ts);
+	}
+
+	return processed;
+}
+
+static void
+qtnf_pcie_data_tx_timeout(struct qtnf_bus *bus, struct net_device *ndev)
+{
+	struct qtnf_pcie_topaz_state *ts = get_bus_priv(bus);
+
+	qtnf_try_wake_xmit(bus, ndev);
+	tasklet_hi_schedule(&ts->base.reclaim_tq);
+}
+
+static void qtnf_pcie_data_rx_start(struct qtnf_bus *bus)
+{
+	struct qtnf_pcie_topaz_state *ts = get_bus_priv(bus);
+
+	napi_enable(&bus->mux_napi);
+	enable_rx_irqs(ts);
+}
+
+static void qtnf_pcie_data_rx_stop(struct qtnf_bus *bus)
+{
+	struct qtnf_pcie_topaz_state *ts = get_bus_priv(bus);
+
+	disable_rx_irqs(ts);
+	napi_disable(&bus->mux_napi);
+}
+
+static const struct qtnf_bus_ops qtnf_pcie_topaz_bus_ops = {
+	/* control path methods */
+	.control_tx	= qtnf_pcie_control_tx,
+
+	/* data path methods */
+	.data_tx		= qtnf_pcie_data_tx,
+	.data_tx_timeout	= qtnf_pcie_data_tx_timeout,
+	.data_rx_start		= qtnf_pcie_data_rx_start,
+	.data_rx_stop		= qtnf_pcie_data_rx_stop,
+};
+
+static int qtnf_dbg_irq_stats(struct seq_file *s, void *data)
+{
+	struct qtnf_bus *bus = dev_get_drvdata(s->private);
+	struct qtnf_pcie_topaz_state *ts = get_bus_priv(bus);
+
+	seq_printf(s, "pcie_irq_count(%u)\n", ts->base.pcie_irq_count);
+
+	return 0;
+}
+
+static int qtnf_dbg_pkt_stats(struct seq_file *s, void *data)
+{
+	struct qtnf_bus *bus = dev_get_drvdata(s->private);
+	struct qtnf_pcie_topaz_state *ts = get_bus_priv(bus);
+	struct qtnf_pcie_bus_priv *priv = &ts->base;
+	u32 tx_done_index = readl(ts->ep_next_rx_pkt);
+
+	seq_printf(s, "tx_full_count(%u)\n", priv->tx_full_count);
+	seq_printf(s, "tx_done_count(%u)\n", priv->tx_done_count);
+	seq_printf(s, "tx_reclaim_done(%u)\n", priv->tx_reclaim_done);
+	seq_printf(s, "tx_reclaim_req(%u)\n", priv->tx_reclaim_req);
+
+	seq_printf(s, "tx_bd_r_index(%u)\n", priv->tx_bd_r_index);
+	seq_printf(s, "tx_done_index(%u)\n", tx_done_index);
+	seq_printf(s, "tx_bd_w_index(%u)\n", priv->tx_bd_w_index);
+
+	seq_printf(s, "tx host queue len(%u)\n",
+		   CIRC_CNT(priv->tx_bd_w_index, priv->tx_bd_r_index,
+			    priv->tx_bd_num));
+	seq_printf(s, "tx reclaim queue len(%u)\n",
+		   CIRC_CNT(tx_done_index, priv->tx_bd_r_index,
+			    priv->tx_bd_num));
+	seq_printf(s, "tx card queue len(%u)\n",
+		   CIRC_CNT(priv->tx_bd_w_index, tx_done_index,
+			    priv->tx_bd_num));
+
+	seq_printf(s, "rx_bd_r_index(%u)\n", priv->rx_bd_r_index);
+	seq_printf(s, "rx_bd_w_index(%u)\n", priv->rx_bd_w_index);
+	seq_printf(s, "rx alloc queue len(%u)\n",
+		   CIRC_SPACE(priv->rx_bd_w_index, priv->rx_bd_r_index,
+			      priv->rx_bd_num));
+
+	return 0;
+}
+
+static void qtnf_reset_dma_offset(struct qtnf_pcie_topaz_state *ts)
+{
+	struct qtnf_topaz_bda __iomem *bda = ts->bda;
+	u32 offset = readl(&bda->bda_dma_offset);
+
+	if ((offset & PCIE_DMA_OFFSET_ERROR_MASK) != PCIE_DMA_OFFSET_ERROR)
+		return;
+
+	writel(0x0, &bda->bda_dma_offset);
+}
+
+static int qtnf_pcie_endian_detect(struct qtnf_pcie_topaz_state *ts)
+{
+	struct qtnf_topaz_bda __iomem *bda = ts->bda;
+	u32 timeout = 0;
+	u32 endian;
+	int ret = 0;
+
+	writel(QTN_PCI_ENDIAN_DETECT_DATA, &bda->bda_pci_endian);
+
+	/* flush endian modifications before status update */
+	dma_wmb();
+
+	writel(QTN_PCI_ENDIAN_VALID_STATUS, &bda->bda_pci_pre_status);
+
+	while (readl(&bda->bda_pci_post_status) !=
+	       QTN_PCI_ENDIAN_VALID_STATUS) {
+		usleep_range(1000, 1200);
+		if (++timeout > QTN_FW_DL_TIMEOUT_MS) {
+			pr_err("card endianness detection timed out\n");
+			ret = -ETIMEDOUT;
+			goto endian_out;
+		}
+	}
+
+	/* do not read before status is updated */
+	dma_rmb();
+
+	endian = readl(&bda->bda_pci_endian);
+	WARN(endian != QTN_PCI_LITTLE_ENDIAN,
+	     "%s: unexpected card endianness", __func__);
+
+endian_out:
+	writel(0, &bda->bda_pci_pre_status);
+	writel(0, &bda->bda_pci_post_status);
+	writel(0, &bda->bda_pci_endian);
+
+	return ret;
+}
+
+static int qtnf_pre_init_ep(struct qtnf_bus *bus)
+{
+	struct qtnf_pcie_topaz_state *ts = (void *)get_bus_priv(bus);
+	struct qtnf_topaz_bda __iomem *bda = ts->bda;
+	u32 flags;
+	int ret;
+
+	ret = qtnf_pcie_endian_detect(ts);
+	if (ret < 0) {
+		pr_err("failed to detect card endianness\n");
+		return ret;
+	}
+
+	writeb(ts->base.msi_enabled, &ts->bda->bda_rc_msi_enabled);
+	qtnf_reset_dma_offset(ts);
+
+	/* notify card about driver type and boot mode */
+	flags = readl(&bda->bda_flags) | QTN_BDA_HOST_QLINK_DRV;
+
+	if (ts->base.flashboot)
+		flags |= QTN_BDA_FLASH_BOOT;
+	else
+		flags &= ~QTN_BDA_FLASH_BOOT;
+
+	writel(flags, &bda->bda_flags);
+
+	qtnf_set_state(&ts->bda->bda_bootstate, QTN_BDA_FW_HOST_RDY);
+	if (qtnf_poll_state(&ts->bda->bda_bootstate, QTN_BDA_FW_TARGET_RDY,
+			    QTN_FW_DL_TIMEOUT_MS)) {
+		pr_err("card is not ready to boot...\n");
+		return -ETIMEDOUT;
+	}
+
+	return ret;
+}
+
+static int qtnf_post_init_ep(struct qtnf_pcie_topaz_state *ts)
+{
+	struct pci_dev *pdev = ts->base.pdev;
+
+	setup_rx_irqs(ts);
+	disable_rx_irqs(ts);
+
+	if (qtnf_poll_state(&ts->bda->bda_bootstate, QTN_BDA_FW_QLINK_DONE,
+			    QTN_FW_QLINK_TIMEOUT_MS))
+		return -ETIMEDOUT;
+
+	enable_irq(pdev->irq);
+	return 0;
+}
+
+static int
+qtnf_ep_fw_load(struct qtnf_pcie_topaz_state *ts, const u8 *fw, u32 fw_size)
+{
+	struct qtnf_topaz_bda __iomem *bda = ts->bda;
+	struct pci_dev *pdev = ts->base.pdev;
+	u32 remaining = fw_size;
+	u8 *curr = (u8 *)fw;
+	u32 blksize;
+	u32 nblocks;
+	u32 offset;
+	u32 count;
+	u32 size;
+	dma_addr_t paddr;
+	void *data;
+	int ret = 0;
+
+	pr_debug("FW upload started: fw_addr = 0x%p, size=%d\n", fw, fw_size);
+
+	blksize = ts->base.fw_blksize;
+
+	if (blksize < PAGE_SIZE)
+		blksize = PAGE_SIZE;
+
+	while (blksize >= PAGE_SIZE) {
+		pr_debug("allocating %u bytes to upload FW\n", blksize);
+		data = dma_alloc_coherent(&pdev->dev, blksize,
+					  &paddr, GFP_KERNEL);
+		if (data)
+			break;
+		blksize /= 2;
+	}
+
+	if (!data) {
+		pr_err("failed to allocate DMA buffer for FW upload\n");
+		ret = -ENOMEM;
+		goto fw_load_out;
+	}
+
+	nblocks = NBLOCKS(fw_size, blksize);
+	offset = readl(&bda->bda_dma_offset);
+
+	qtnf_set_state(&ts->bda->bda_bootstate, QTN_BDA_FW_HOST_LOAD);
+	if (qtnf_poll_state(&ts->bda->bda_bootstate, QTN_BDA_FW_EP_RDY,
+			    QTN_FW_DL_TIMEOUT_MS)) {
+		pr_err("card is not ready to download FW\n");
+		ret = -ETIMEDOUT;
+		goto fw_load_map;
+	}
+
+	for (count = 0 ; count < nblocks; count++) {
+		size = (remaining > blksize) ? blksize : remaining;
+
+		memcpy(data, curr, size);
+		qtnf_non_posted_write(paddr + offset, &bda->bda_img);
+		qtnf_non_posted_write(size, &bda->bda_img_size);
+
+		pr_debug("chunk[%u] VA[0x%p] PA[%pad] sz[%u]\n",
+			 count, (void *)curr, &paddr, size);
+
+		qtnf_set_state(&ts->bda->bda_bootstate, QTN_BDA_FW_BLOCK_RDY);
+		if (qtnf_poll_state(&ts->bda->bda_bootstate,
+				    QTN_BDA_FW_BLOCK_DONE,
+				    QTN_FW_DL_TIMEOUT_MS)) {
+			pr_err("confirmation for block #%d timed out\n", count);
+			ret = -ETIMEDOUT;
+			goto fw_load_map;
+		}
+
+		remaining = (remaining < size) ? remaining : (remaining - size);
+		curr += size;
+	}
+
+	/* upload completion mark: zero-sized block */
+	qtnf_non_posted_write(0, &bda->bda_img);
+	qtnf_non_posted_write(0, &bda->bda_img_size);
+
+	qtnf_set_state(&ts->bda->bda_bootstate, QTN_BDA_FW_BLOCK_RDY);
+	if (qtnf_poll_state(&ts->bda->bda_bootstate, QTN_BDA_FW_BLOCK_DONE,
+			    QTN_FW_DL_TIMEOUT_MS)) {
+		pr_err("confirmation for the last block timed out\n");
+		ret = -ETIMEDOUT;
+		goto fw_load_map;
+	}
+
+	/* RC is done */
+	qtnf_set_state(&ts->bda->bda_bootstate, QTN_BDA_FW_BLOCK_END);
+	if (qtnf_poll_state(&ts->bda->bda_bootstate, QTN_BDA_FW_LOAD_DONE,
+			    QTN_FW_DL_TIMEOUT_MS)) {
+		pr_err("confirmation for FW upload completion timed out\n");
+		ret = -ETIMEDOUT;
+		goto fw_load_map;
+	}
+
+	pr_debug("FW upload completed: totally sent %d blocks\n", count);
+
+fw_load_map:
+	dma_free_coherent(&pdev->dev, blksize, data, paddr);
+
+fw_load_out:
+	return ret;
+}
+
+static int qtnf_topaz_fw_upload(struct qtnf_pcie_topaz_state *ts,
+				const char *fwname)
+{
+	const struct firmware *fw;
+	struct pci_dev *pdev = ts->base.pdev;
+	int ret;
+
+	if (qtnf_poll_state(&ts->bda->bda_bootstate,
+			    QTN_BDA_FW_LOAD_RDY,
+			    QTN_FW_DL_TIMEOUT_MS)) {
+		pr_err("%s: card is not ready\n", fwname);
+		return -1;
+	}
+
+	pr_info("starting firmware upload: %s\n", fwname);
+
+	ret = request_firmware(&fw, fwname, &pdev->dev);
+	if (ret < 0) {
+		pr_err("%s: request_firmware error %d\n", fwname, ret);
+		return -1;
+	}
+
+	ret = qtnf_ep_fw_load(ts, fw->data, fw->size);
+	release_firmware(fw);
+
+	if (ret)
+		pr_err("%s: FW upload error\n", fwname);
+
+	return ret;
+}
+
+static void qtnf_topaz_fw_work_handler(struct work_struct *work)
+{
+	struct qtnf_bus *bus = container_of(work, struct qtnf_bus, fw_work);
+	struct qtnf_pcie_topaz_state *ts = (void *)get_bus_priv(bus);
+	int ret;
+	int bootloader_needed = readl(&ts->bda->bda_flags) & QTN_BDA_XMIT_UBOOT;
+
+	qtnf_set_state(&ts->bda->bda_bootstate, QTN_BDA_FW_TARGET_BOOT);
+
+	if (bootloader_needed) {
+		ret = qtnf_topaz_fw_upload(ts, QTN_PCI_TOPAZ_BOOTLD_NAME);
+		if (ret)
+			goto fw_load_exit;
+
+		ret = qtnf_pre_init_ep(bus);
+		if (ret)
+			goto fw_load_exit;
+
+		qtnf_set_state(&ts->bda->bda_bootstate,
+			       QTN_BDA_FW_TARGET_BOOT);
+	}
+
+	if (ts->base.flashboot) {
+		pr_info("booting firmware from flash\n");
+
+		ret = qtnf_poll_state(&ts->bda->bda_bootstate,
+				      QTN_BDA_FW_FLASH_BOOT,
+				      QTN_FW_DL_TIMEOUT_MS);
+		if (ret)
+			goto fw_load_exit;
+	} else {
+		ret = qtnf_topaz_fw_upload(ts, QTN_PCI_TOPAZ_FW_NAME);
+		if (ret)
+			goto fw_load_exit;
+
+		qtnf_set_state(&ts->bda->bda_bootstate, QTN_BDA_FW_START);
+		ret = qtnf_poll_state(&ts->bda->bda_bootstate,
+				      QTN_BDA_FW_CONFIG,
+				      QTN_FW_QLINK_TIMEOUT_MS);
+		if (ret) {
+			pr_err("FW bringup timed out\n");
+			goto fw_load_exit;
+		}
+
+		qtnf_set_state(&ts->bda->bda_bootstate, QTN_BDA_FW_RUN);
+		ret = qtnf_poll_state(&ts->bda->bda_bootstate,
+				      QTN_BDA_FW_RUNNING,
+				      QTN_FW_QLINK_TIMEOUT_MS);
+		if (ret) {
+			pr_err("card bringup timed out\n");
+			goto fw_load_exit;
+		}
+	}
+
+	pr_info("firmware is up and running\n");
+
+	ret = qtnf_post_init_ep(ts);
+	if (ret)
+		pr_err("FW runtime failure\n");
+
+fw_load_exit:
+	qtnf_pcie_fw_boot_done(bus, ret ? false : true);
+
+	if (ret == 0) {
+		qtnf_debugfs_add_entry(bus, "pkt_stats", qtnf_dbg_pkt_stats);
+		qtnf_debugfs_add_entry(bus, "irq_stats", qtnf_dbg_irq_stats);
+	}
+}
+
+static void qtnf_reclaim_tasklet_fn(unsigned long data)
+{
+	struct qtnf_pcie_topaz_state *ts = (void *)data;
+
+	qtnf_topaz_data_tx_reclaim(ts);
+}
+
+static u64 qtnf_topaz_dma_mask_get(void)
+{
+	return DMA_BIT_MASK(32);
+}
+
+static int qtnf_pcie_topaz_probe(struct qtnf_bus *bus, unsigned int tx_bd_num)
+{
+	struct qtnf_pcie_topaz_state *ts = get_bus_priv(bus);
+	struct pci_dev *pdev = ts->base.pdev;
+	struct qtnf_shm_ipc_int ipc_int;
+	unsigned long irqflags;
+	int ret;
+
+	bus->bus_ops = &qtnf_pcie_topaz_bus_ops;
+	INIT_WORK(&bus->fw_work, qtnf_topaz_fw_work_handler);
+	ts->bda = ts->base.epmem_bar;
+
+	/* assign host msi irq before card init */
+	if (ts->base.msi_enabled)
+		irqflags = IRQF_NOBALANCING;
+	else
+		irqflags = IRQF_NOBALANCING | IRQF_SHARED;
+
+	ret = devm_request_irq(&pdev->dev, pdev->irq,
+			       &qtnf_pcie_topaz_interrupt,
+			       irqflags, "qtnf_topaz_irq", (void *)bus);
+	if (ret) {
+		pr_err("failed to request pcie irq %d\n", pdev->irq);
+		return ret;
+	}
+
+	disable_irq(pdev->irq);
+
+	ret = qtnf_pre_init_ep(bus);
+	if (ret) {
+		pr_err("failed to init card\n");
+		return ret;
+	}
+
+	ret = qtnf_pcie_topaz_init_xfer(ts, tx_bd_num);
+	if (ret) {
+		pr_err("PCIE xfer init failed\n");
+		return ret;
+	}
+
+	tasklet_init(&ts->base.reclaim_tq, qtnf_reclaim_tasklet_fn,
+		     (unsigned long)ts);
+	netif_napi_add(&bus->mux_dev, &bus->mux_napi,
+		       qtnf_topaz_rx_poll, 10);
+
+	ipc_int.fn = qtnf_topaz_ipc_gen_ep_int;
+	ipc_int.arg = ts;
+	qtnf_pcie_init_shm_ipc(&ts->base, &ts->bda->bda_shm_reg1,
+			       &ts->bda->bda_shm_reg2, &ipc_int);
+
+	return 0;
+}
+
+static void qtnf_pcie_topaz_remove(struct qtnf_bus *bus)
+{
+	struct qtnf_pcie_topaz_state *ts = get_bus_priv(bus);
+
+	qtnf_topaz_reset_ep(ts);
+	qtnf_topaz_free_xfer_buffers(ts);
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int qtnf_pcie_topaz_suspend(struct qtnf_bus *bus)
+{
+	struct qtnf_pcie_topaz_state *ts = get_bus_priv(bus);
+	struct pci_dev *pdev = ts->base.pdev;
+
+	writel((u32 __force)PCI_D3hot, ts->ep_pmstate);
+	dma_wmb();
+	writel(TOPAZ_IPC_IRQ_WORD(TOPAZ_RC_PM_EP_IRQ),
+	       TOPAZ_LH_IPC4_INT(ts->base.sysctl_bar));
+
+	pci_save_state(pdev);
+	pci_enable_wake(pdev, PCI_D3hot, 1);
+	pci_set_power_state(pdev, PCI_D3hot);
+
+	return 0;
+}
+
+static int qtnf_pcie_topaz_resume(struct qtnf_bus *bus)
+{
+	struct qtnf_pcie_topaz_state *ts = get_bus_priv(bus);
+	struct pci_dev *pdev = ts->base.pdev;
+
+	pci_set_power_state(pdev, PCI_D0);
+	pci_restore_state(pdev);
+	pci_enable_wake(pdev, PCI_D0, 0);
+
+	writel((u32 __force)PCI_D0, ts->ep_pmstate);
+	dma_wmb();
+	writel(TOPAZ_IPC_IRQ_WORD(TOPAZ_RC_PM_EP_IRQ),
+	       TOPAZ_LH_IPC4_INT(ts->base.sysctl_bar));
+
+	return 0;
+}
+#endif
+
+struct qtnf_bus *qtnf_pcie_topaz_alloc(struct pci_dev *pdev)
+{
+	struct qtnf_bus *bus;
+	struct qtnf_pcie_topaz_state *ts;
+
+	bus = devm_kzalloc(&pdev->dev, sizeof(*bus) + sizeof(*ts), GFP_KERNEL);
+	if (!bus)
+		return NULL;
+
+	ts = get_bus_priv(bus);
+	ts->base.probe_cb = qtnf_pcie_topaz_probe;
+	ts->base.remove_cb = qtnf_pcie_topaz_remove;
+	ts->base.dma_mask_get_cb = qtnf_topaz_dma_mask_get;
+#ifdef CONFIG_PM_SLEEP
+	ts->base.resume_cb = qtnf_pcie_topaz_resume;
+	ts->base.suspend_cb = qtnf_pcie_topaz_suspend;
+#endif
+
+	return bus;
+}
diff --git a/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie_ipc.h b/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie_ipc.h
new file mode 100644
index 000000000000..eb30e9d08de2
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie_ipc.h
@@ -0,0 +1,94 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2018 Quantenna Communications */
+
+#ifndef _QTN_FMAC_PCIE_IPC_H_
+#define _QTN_FMAC_PCIE_IPC_H_
+
+#include <linux/types.h>
+
+#include "shm_ipc_defs.h"
+
+/* EP/RC status and flags */
+#define QTN_BDA_PCIE_INIT		0x01
+#define QTN_BDA_PCIE_RDY		0x02
+#define QTN_BDA_FW_LOAD_RDY		0x03
+#define QTN_BDA_FW_LOAD_DONE		0x04
+#define QTN_BDA_FW_START		0x05
+#define QTN_BDA_FW_RUN			0x06
+#define QTN_BDA_FW_HOST_RDY		0x07
+#define QTN_BDA_FW_TARGET_RDY		0x11
+#define QTN_BDA_FW_TARGET_BOOT		0x12
+#define QTN_BDA_FW_FLASH_BOOT		0x13
+#define QTN_BDA_FW_QLINK_DONE		0x14
+#define QTN_BDA_FW_HOST_LOAD		0x08
+#define QTN_BDA_FW_BLOCK_DONE		0x09
+#define QTN_BDA_FW_BLOCK_RDY		0x0A
+#define QTN_BDA_FW_EP_RDY		0x0B
+#define QTN_BDA_FW_BLOCK_END		0x0C
+#define QTN_BDA_FW_CONFIG		0x0D
+#define QTN_BDA_FW_RUNNING		0x0E
+#define QTN_BDA_PCIE_FAIL		0x82
+#define QTN_BDA_FW_LOAD_FAIL		0x85
+
+#define QTN_BDA_RCMODE			BIT(1)
+#define QTN_BDA_MSI			BIT(2)
+#define QTN_BDA_HOST_CALCMD		BIT(3)
+#define QTN_BDA_FLASH_PRESENT		BIT(4)
+#define QTN_BDA_FLASH_BOOT		BIT(5)
+#define QTN_BDA_XMIT_UBOOT		BIT(6)
+#define QTN_BDA_HOST_QLINK_DRV		BIT(7)
+#define QTN_BDA_TARGET_FBOOT_ERR	BIT(8)
+#define QTN_BDA_TARGET_FWLOAD_ERR	BIT(9)
+#define QTN_BDA_HOST_NOFW_ERR		BIT(12)
+#define QTN_BDA_HOST_MEMALLOC_ERR	BIT(13)
+#define QTN_BDA_HOST_MEMMAP_ERR		BIT(14)
+#define QTN_BDA_VER(x)			(((x) >> 4) & 0xFF)
+#define QTN_BDA_ERROR_MASK		0xFF00
+
+/* registers and shmem address macros */
+#if BITS_PER_LONG == 64
+#define QTN_HOST_HI32(a)	((u32)(((u64)a) >> 32))
+#define QTN_HOST_LO32(a)	((u32)(((u64)a) & 0xffffffffUL))
+#define QTN_HOST_ADDR(h, l)	((((u64)h) << 32) | ((u64)l))
+#elif BITS_PER_LONG == 32
+#define QTN_HOST_HI32(a)	0
+#define QTN_HOST_LO32(a)	((u32)(((u32)a) & 0xffffffffUL))
+#define QTN_HOST_ADDR(h, l)	((u32)l)
+#else
+#error Unexpected BITS_PER_LONG value
+#endif
+
+#define QTN_PCIE_BDA_VERSION		0x1001
+
+#define PCIE_BDA_NAMELEN		32
+
+#define QTN_PCIE_RC_TX_QUEUE_LEN	256
+#define QTN_PCIE_TX_VALID_PKT		0x80000000
+#define QTN_PCIE_PKT_LEN_MASK		0xffff
+
+#define QTN_BD_EMPTY		((uint32_t)0x00000001)
+#define QTN_BD_WRAP		((uint32_t)0x00000002)
+#define QTN_BD_MASK_LEN		((uint32_t)0xFFFF0000)
+#define QTN_BD_MASK_OFFSET	((uint32_t)0x0000FF00)
+
+#define QTN_GET_LEN(x)		(((x) >> 16) & 0xFFFF)
+#define QTN_GET_OFFSET(x)	(((x) >> 8) & 0xFF)
+#define QTN_SET_LEN(len)	(((len) & 0xFFFF) << 16)
+#define QTN_SET_OFFSET(of)	(((of) & 0xFF) << 8)
+
+#define RX_DONE_INTR_MSK	((0x1 << 6) - 1)
+
+#define PCIE_DMA_OFFSET_ERROR		0xFFFF
+#define PCIE_DMA_OFFSET_ERROR_MASK	0xFFFF
+
+#define QTN_PCI_ENDIAN_DETECT_DATA	0x12345678
+#define QTN_PCI_ENDIAN_REVERSE_DATA	0x78563412
+#define QTN_PCI_ENDIAN_VALID_STATUS	0x3c3c3c3c
+#define QTN_PCI_ENDIAN_INVALID_STATUS	0
+#define QTN_PCI_LITTLE_ENDIAN		0
+#define QTN_PCI_BIG_ENDIAN		0xffffffff
+
+#define NBLOCKS(size, blksize)		\
+	((size) / (blksize) + (((size) % (blksize) > 0) ? 1 : 0))
+
+#endif /* _QTN_FMAC_PCIE_IPC_H_ */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie_regs.h b/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie_regs.h
new file mode 100644
index 000000000000..4782e1ed3c2c
--- /dev/null
+++ b/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie_regs.h
@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2018 Quantenna Communications */
+
+#ifndef __TOPAZ_PCIE_H
+#define __TOPAZ_PCIE_H
+
+/* Topaz PCIe DMA registers */
+#define PCIE_DMA_WR_INTR_STATUS(base)		((base) + 0x9bc)
+#define PCIE_DMA_WR_INTR_MASK(base)		((base) + 0x9c4)
+#define PCIE_DMA_WR_INTR_CLR(base)		((base) + 0x9c8)
+#define PCIE_DMA_WR_ERR_STATUS(base)		((base) + 0x9cc)
+#define PCIE_DMA_WR_DONE_IMWR_ADDR_LOW(base)	((base) + 0x9D0)
+#define PCIE_DMA_WR_DONE_IMWR_ADDR_HIGH(base)	((base) + 0x9d4)
+
+#define PCIE_DMA_RD_INTR_STATUS(base)		((base) + 0x310)
+#define PCIE_DMA_RD_INTR_MASK(base)		((base) + 0x319)
+#define PCIE_DMA_RD_INTR_CLR(base)		((base) + 0x31c)
+#define PCIE_DMA_RD_ERR_STATUS_LOW(base)	((base) + 0x324)
+#define PCIE_DMA_RD_ERR_STATUS_HIGH(base)	((base) + 0x328)
+#define PCIE_DMA_RD_DONE_IMWR_ADDR_LOW(base)	((base) + 0x33c)
+#define PCIE_DMA_RD_DONE_IMWR_ADDR_HIGH(base)	((base) + 0x340)
+
+/* Topaz LHost IPC4 interrupt */
+#define TOPAZ_LH_IPC4_INT(base)			((base) + 0x13C)
+#define TOPAZ_LH_IPC4_INT_MASK(base)		((base) + 0x140)
+
+#define TOPAZ_RC_TX_DONE_IRQ			(0)
+#define TOPAZ_RC_RST_EP_IRQ			(1)
+#define TOPAZ_RC_TX_STOP_IRQ			(2)
+#define TOPAZ_RC_RX_DONE_IRQ			(3)
+#define TOPAZ_RC_PM_EP_IRQ			(4)
+
+/* Topaz LHost M2L interrupt */
+#define TOPAZ_CTL_M2L_INT(base)			((base) + 0x2C)
+#define TOPAZ_CTL_M2L_INT_MASK(base)		((base) + 0x30)
+
+#define TOPAZ_RC_CTRL_IRQ			(6)
+
+#define TOPAZ_IPC_IRQ_WORD(irq)			(BIT(irq) | BIT(irq + 16))
+
+/* PCIe legacy INTx */
+#define TOPAZ_PCIE_CFG0_OFFSET	(0x6C)
+#define TOPAZ_ASSERT_INTX	BIT(9)
+
+#endif /* __TOPAZ_PCIE_H */
diff --git a/drivers/net/wireless/quantenna/qtnfmac/qtn_hw_ids.h b/drivers/net/wireless/quantenna/qtnfmac/qtn_hw_ids.h
index 1fe798a9a667..40295a511224 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/qtn_hw_ids.h
+++ b/drivers/net/wireless/quantenna/qtnfmac/qtn_hw_ids.h
@@ -23,7 +23,7 @@
 
 /* PCIE Device IDs */
 
-#define	PCIE_DEVICE_ID_QTN_PEARL	(0x0008)
+#define	PCIE_DEVICE_ID_QSR		(0x0008)
 
 #define QTN_REG_SYS_CTRL_CSR		0x14
 #define QTN_CHIP_ID_MASK		0xF0
@@ -35,6 +35,8 @@
 /* FW names */
 
 #define QTN_PCI_PEARL_FW_NAME		"qtn/fmac_qsr10g.img"
+#define QTN_PCI_TOPAZ_FW_NAME		"qtn/fmac_qsr1000.img"
+#define QTN_PCI_TOPAZ_BOOTLD_NAME	"qtn/uboot_qsr1000.img"
 
 static inline unsigned int qtnf_chip_id_get(const void __iomem *regs_base)
 {
diff --git a/drivers/net/wireless/quantenna/qtnfmac/util.c b/drivers/net/wireless/quantenna/qtnfmac/util.c
index dfe3fe8a42c1..3bc96b264769 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/util.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/util.c
@@ -121,6 +121,8 @@ void qtnf_sta_list_free(struct qtnf_sta_list *list)
 const char *qtnf_chipid_to_string(unsigned long chip_id)
 {
 	switch (chip_id) {
+	case QTN_CHIP_ID_TOPAZ:
+		return "Topaz";
 	case QTN_CHIP_ID_PEARL:
 		return "Pearl revA";
 	case QTN_CHIP_ID_PEARL_B:

From e966a79c2f761a696dec9cfb0e2d4aa977bf78cb Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.king@canonical.com>
Date: Tue, 16 Oct 2018 18:43:42 +0100
Subject: [PATCH 059/124] brcmfmac: fix spelling mistake "Retreiving" ->
 "Retrieving"

Trivial fix to spelling mistake in brcmf_err error message.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
index d52774c6489b..e738112ed87c 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
@@ -214,7 +214,7 @@ int brcmf_c_preinit_dcmds(struct brcmf_if *ifp)
 	err = brcmf_fil_iovar_data_get(ifp, "cur_etheraddr", ifp->mac_addr,
 				       sizeof(ifp->mac_addr));
 	if (err < 0) {
-		brcmf_err("Retreiving cur_etheraddr failed, %d\n", err);
+		brcmf_err("Retrieving cur_etheraddr failed, %d\n", err);
 		goto done;
 	}
 	memcpy(ifp->drvr->wiphy->perm_addr, ifp->drvr->mac, ETH_ALEN);
@@ -269,7 +269,7 @@ int brcmf_c_preinit_dcmds(struct brcmf_if *ifp)
 	strcpy(buf, "ver");
 	err = brcmf_fil_iovar_data_get(ifp, "ver", buf, sizeof(buf));
 	if (err < 0) {
-		brcmf_err("Retreiving version information failed, %d\n",
+		brcmf_err("Retrieving version information failed, %d\n",
 			  err);
 		goto done;
 	}

From 1066bd193d681bda0fbacda9df351241a5ee04d9 Mon Sep 17 00:00:00 2001
From: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Date: Wed, 17 Oct 2018 14:02:47 +0000
Subject: [PATCH 060/124] qtnfmac: fix error handling in control path

This patch fixes the following warnings:

- smatch
drivers/net/wireless/quantenna/qtnfmac/commands.c:132 qtnf_cmd_send_with_reply() warn: variable dereferenced before check 'resp' (see line 117)
drivers/net/wireless/quantenna/qtnfmac/commands.c:716  qtnf_cmd_get_sta_info() error: uninitialized symbol 'var_resp_len'.
drivers/net/wireless/quantenna/qtnfmac/commands.c:1668 qtnf_cmd_get_mac_info() error: uninitialized symbol 'var_data_len'.
drivers/net/wireless/quantenna/qtnfmac/commands.c:1697 qtnf_cmd_get_hw_info() error: uninitialized symbol 'info_len'.
drivers/net/wireless/quantenna/qtnfmac/commands.c:1753 qtnf_cmd_band_info_get() error: uninitialized symbol 'info_len'.
drivers/net/wireless/quantenna/qtnfmac/commands.c:1782 qtnf_cmd_send_get_phy_params() error: uninitialized symbol 'response_size'.
drivers/net/wireless/quantenna/qtnfmac/commands.c:2438 qtnf_cmd_get_chan_stats() error: uninitialized symbol 'var_data_len'.

- gcc-8.2.1
drivers/net/wireless/quantenna/qtnfmac/commands.c: In function 'qtnf_cmd_send_with_reply':
drivers/net/wireless/quantenna/qtnfmac/commands.c:133:54: error: 'resp' may be used uninitialized in this function [-Werror=maybe-uninitialized]

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 .../net/wireless/quantenna/qtnfmac/commands.c | 21 ++++++++++++-------
 1 file changed, 13 insertions(+), 8 deletions(-)

diff --git a/drivers/net/wireless/quantenna/qtnfmac/commands.c b/drivers/net/wireless/quantenna/qtnfmac/commands.c
index bfdc1ad30c13..659e7649fe22 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/commands.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/commands.c
@@ -84,7 +84,7 @@ static int qtnf_cmd_send_with_reply(struct qtnf_bus *bus,
 				    size_t *var_resp_size)
 {
 	struct qlink_cmd *cmd;
-	const struct qlink_resp *resp;
+	struct qlink_resp *resp = NULL;
 	struct sk_buff *resp_skb = NULL;
 	u16 cmd_id;
 	u8 mac_id;
@@ -113,7 +113,12 @@ static int qtnf_cmd_send_with_reply(struct qtnf_bus *bus,
 	if (ret)
 		goto out;
 
-	resp = (const struct qlink_resp *)resp_skb->data;
+	if (WARN_ON(!resp_skb || !resp_skb->data)) {
+		ret = -EFAULT;
+		goto out;
+	}
+
+	resp = (struct qlink_resp *)resp_skb->data;
 	ret = qtnf_cmd_check_reply_header(resp, cmd_id, mac_id, vif_id,
 					  const_resp_size);
 	if (ret)
@@ -686,7 +691,7 @@ int qtnf_cmd_get_sta_info(struct qtnf_vif *vif, const u8 *sta_mac,
 	struct sk_buff *cmd_skb, *resp_skb = NULL;
 	struct qlink_cmd_get_sta_info *cmd;
 	const struct qlink_resp_get_sta_info *resp;
-	size_t var_resp_len;
+	size_t var_resp_len = 0;
 	int ret = 0;
 
 	cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
@@ -1650,7 +1655,7 @@ int qtnf_cmd_get_mac_info(struct qtnf_wmac *mac)
 {
 	struct sk_buff *cmd_skb, *resp_skb = NULL;
 	const struct qlink_resp_get_mac_info *resp;
-	size_t var_data_len;
+	size_t var_data_len = 0;
 	int ret = 0;
 
 	cmd_skb = qtnf_cmd_alloc_new_cmdskb(mac->macid, QLINK_VIFID_RSVD,
@@ -1680,8 +1685,8 @@ int qtnf_cmd_get_hw_info(struct qtnf_bus *bus)
 {
 	struct sk_buff *cmd_skb, *resp_skb = NULL;
 	const struct qlink_resp_get_hw_info *resp;
+	size_t info_len = 0;
 	int ret = 0;
-	size_t info_len;
 
 	cmd_skb = qtnf_cmd_alloc_new_cmdskb(QLINK_MACID_RSVD, QLINK_VIFID_RSVD,
 					    QLINK_CMD_GET_HW_INFO,
@@ -1709,9 +1714,9 @@ int qtnf_cmd_band_info_get(struct qtnf_wmac *mac,
 			   struct ieee80211_supported_band *band)
 {
 	struct sk_buff *cmd_skb, *resp_skb = NULL;
-	size_t info_len;
 	struct qlink_cmd_band_info_get *cmd;
 	struct qlink_resp_band_info_get *resp;
+	size_t info_len = 0;
 	int ret = 0;
 	u8 qband;
 
@@ -1764,8 +1769,8 @@ int qtnf_cmd_band_info_get(struct qtnf_wmac *mac,
 int qtnf_cmd_send_get_phy_params(struct qtnf_wmac *mac)
 {
 	struct sk_buff *cmd_skb, *resp_skb = NULL;
-	size_t response_size;
 	struct qlink_resp_phy_params *resp;
+	size_t response_size = 0;
 	int ret = 0;
 
 	cmd_skb = qtnf_cmd_alloc_new_cmdskb(mac->macid, 0,
@@ -2431,7 +2436,7 @@ int qtnf_cmd_get_chan_stats(struct qtnf_wmac *mac, u16 channel,
 	struct sk_buff *cmd_skb, *resp_skb = NULL;
 	struct qlink_cmd_get_chan_stats *cmd;
 	struct qlink_resp_get_chan_stats *resp;
-	size_t var_data_len;
+	size_t var_data_len = 0;
 	int ret = 0;
 
 	cmd_skb = qtnf_cmd_alloc_new_cmdskb(mac->macid, QLINK_VIFID_RSVD,

From 9198f460ec9d0ba95b0e903537d4ef96d9e8d617 Mon Sep 17 00:00:00 2001
From: YueHaibing <yuehaibing@huawei.com>
Date: Mon, 22 Oct 2018 07:51:15 +0000
Subject: [PATCH 061/124] rtlwifi: btcoex: remove set but not used variable
 'ppsc'

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c: In function 'halbtc_leave_lps':
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c:295:21: warning:
 variable 'ppsc' set but not used [-Wunused-but-set-variable]

drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c: In function 'halbtc_enter_lps':
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c:318:21: warning:
 variable 'ppsc' set but not used [-Wunused-but-set-variable]

It never used since introduction in
commit aa45a673b291 ("rtlwifi: btcoexist: Add new mini driver")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c
index 6fbf8845a2ab..d748aab66aa2 100644
--- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c
+++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c
@@ -292,11 +292,9 @@ bool halbtc_send_bt_mp_operation(struct btc_coexist *btcoexist, u8 op_code,
 static void halbtc_leave_lps(struct btc_coexist *btcoexist)
 {
 	struct rtl_priv *rtlpriv;
-	struct rtl_ps_ctl *ppsc;
 	bool ap_enable = false;
 
 	rtlpriv = btcoexist->adapter;
-	ppsc = rtl_psc(rtlpriv);
 
 	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_AP_MODE_ENABLE,
 			   &ap_enable);
@@ -315,11 +313,9 @@ static void halbtc_leave_lps(struct btc_coexist *btcoexist)
 static void halbtc_enter_lps(struct btc_coexist *btcoexist)
 {
 	struct rtl_priv *rtlpriv;
-	struct rtl_ps_ctl *ppsc;
 	bool ap_enable = false;
 
 	rtlpriv = btcoexist->adapter;
-	ppsc = rtl_psc(rtlpriv);
 
 	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_AP_MODE_ENABLE,
 			   &ap_enable);

From e20c50cdca19e1dfcba64b17e9ae8a0a7540c7a2 Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Mon, 22 Oct 2018 13:50:08 +0200
Subject: [PATCH 062/124] rtl8xxxu: Mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 1357355 ("Missing break in switch")
Addresses-Coverity-ID: 1357378 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
index 56040b181cf5..c6b0686555b3 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
@@ -1153,6 +1153,7 @@ void rtl8xxxu_gen1_config_channel(struct ieee80211_hw *hw)
 	switch (hw->conf.chandef.width) {
 	case NL80211_CHAN_WIDTH_20_NOHT:
 		ht = false;
+		/* fall through */
 	case NL80211_CHAN_WIDTH_20:
 		opmode |= BW_OPMODE_20MHZ;
 		rtl8xxxu_write8(priv, REG_BW_OPMODE, opmode);
@@ -1280,6 +1281,7 @@ void rtl8xxxu_gen2_config_channel(struct ieee80211_hw *hw)
 	switch (hw->conf.chandef.width) {
 	case NL80211_CHAN_WIDTH_20_NOHT:
 		ht = false;
+		/* fall through */
 	case NL80211_CHAN_WIDTH_20:
 		rf_mode_bw |= WMAC_TRXPTCL_CTL_BW_20;
 		subchannel = 0;
@@ -1748,9 +1750,11 @@ static int rtl8xxxu_identify_chip(struct rtl8xxxu_priv *priv)
 		case 3:
 			priv->ep_tx_low_queue = 1;
 			priv->ep_tx_count++;
+			/* fall through */
 		case 2:
 			priv->ep_tx_normal_queue = 1;
 			priv->ep_tx_count++;
+			/* fall through */
 		case 1:
 			priv->ep_tx_high_queue = 1;
 			priv->ep_tx_count++;

From 307b00c5e695857ca92fc6a4b8ab6c48f988a1b1 Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Mon, 22 Oct 2018 13:51:03 +0200
Subject: [PATCH 063/124] rtl8xxxu: Fix missing break in switch

Add missing break statement in order to prevent the code from falling
through to the default case.

Fixes: 26f1fad29ad9 ("New driver: rtl8xxxu (mac80211)")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
index c6b0686555b3..2bd43057dda3 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
@@ -5692,6 +5692,7 @@ static int rtl8xxxu_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 		break;
 	case WLAN_CIPHER_SUITE_TKIP:
 		key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
+		break;
 	default:
 		return -EOPNOTSUPP;
 	}

From e9904084dd1be8de5bc06eaca75276556ef53e79 Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Mon, 22 Oct 2018 22:40:53 +0200
Subject: [PATCH 064/124] iwlegacy: 4965-mac: mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/intel/iwlegacy/4965-mac.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/intel/iwlegacy/4965-mac.c b/drivers/net/wireless/intel/iwlegacy/4965-mac.c
index 280cd8ae1696..6b4488a178a7 100644
--- a/drivers/net/wireless/intel/iwlegacy/4965-mac.c
+++ b/drivers/net/wireless/intel/iwlegacy/4965-mac.c
@@ -559,7 +559,7 @@ il4965_translate_rx_status(struct il_priv *il, u32 decrypt_in)
 			decrypt_out |= RX_RES_STATUS_BAD_KEY_TTAK;
 			break;
 		}
-		/* fall through if TTAK OK */
+		/* fall through - if TTAK OK */
 	default:
 		if (!(decrypt_in & RX_MPDU_RES_STATUS_ICV_OK))
 			decrypt_out |= RX_RES_STATUS_BAD_ICV_MIC;

From af71f8fef45ce7ebc2d4cab611942dbe439905f1 Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Mon, 22 Oct 2018 22:41:23 +0200
Subject: [PATCH 065/124] iwlegacy: common: mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 201384 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/intel/iwlegacy/common.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlegacy/common.c b/drivers/net/wireless/intel/iwlegacy/common.c
index 6514baf799fe..a2f86cbcc740 100644
--- a/drivers/net/wireless/intel/iwlegacy/common.c
+++ b/drivers/net/wireless/intel/iwlegacy/common.c
@@ -2695,6 +2695,7 @@ il_set_decrypted_flag(struct il_priv *il, struct ieee80211_hdr *hdr,
 		if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
 		    RX_RES_STATUS_BAD_KEY_TTAK)
 			break;
+		/* fall through */
 
 	case RX_RES_STATUS_SEC_TYPE_WEP:
 		if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
@@ -2704,6 +2705,7 @@ il_set_decrypted_flag(struct il_priv *il, struct ieee80211_hdr *hdr,
 			D_RX("Packet destroyed\n");
 			return -1;
 		}
+		/* fall through */
 	case RX_RES_STATUS_SEC_TYPE_CCMP:
 		if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
 		    RX_RES_STATUS_DECRYPT_OK) {

From d56b26801e1d7663f4d138fa8893174d91205586 Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Mon, 22 Oct 2018 22:42:04 +0200
Subject: [PATCH 066/124] orinoco_usb: mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/intersil/orinoco/orinoco_usb.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/intersil/orinoco/orinoco_usb.c b/drivers/net/wireless/intersil/orinoco/orinoco_usb.c
index 21bb68457cfe..40a8b941ad5c 100644
--- a/drivers/net/wireless/intersil/orinoco/orinoco_usb.c
+++ b/drivers/net/wireless/intersil/orinoco/orinoco_usb.c
@@ -908,6 +908,7 @@ static int ezusb_access_ltv(struct ezusb_priv *upriv,
 	case EZUSB_CTX_REQ_SUBMITTED:
 		if (!ctx->in_rid)
 			break;
+		/* fall through */
 	default:
 		err("%s: Unexpected context state %d", __func__,
 		    state);

From d22b8fadd08e95124e13860397d2071a6f6625bc Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Mon, 22 Oct 2018 22:42:29 +0200
Subject: [PATCH 067/124] prism54: isl_38xx: Mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 114944 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/intersil/prism54/isl_38xx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/intersil/prism54/isl_38xx.c b/drivers/net/wireless/intersil/prism54/isl_38xx.c
index ce9d4db0d9ca..b0eb58a62c90 100644
--- a/drivers/net/wireless/intersil/prism54/isl_38xx.c
+++ b/drivers/net/wireless/intersil/prism54/isl_38xx.c
@@ -235,6 +235,7 @@ isl38xx_in_queue(isl38xx_control_block *cb, int queue)
 		/* send queues */
 	case ISL38XX_CB_TX_MGMTQ:
 		BUG_ON(delta > ISL38XX_CB_MGMT_QSIZE);
+		/* fall through */
 
 	case ISL38XX_CB_TX_DATA_LQ:
 	case ISL38XX_CB_TX_DATA_HQ:

From 3d238b9d5048886ca6c4dbbd1381c2ae81759a14 Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Mon, 22 Oct 2018 22:42:47 +0200
Subject: [PATCH 068/124] prism54: isl_ioctl: mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/intersil/prism54/isl_ioctl.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/intersil/prism54/isl_ioctl.c b/drivers/net/wireless/intersil/prism54/isl_ioctl.c
index 334717b0a2be..3ccf2a4b548c 100644
--- a/drivers/net/wireless/intersil/prism54/isl_ioctl.c
+++ b/drivers/net/wireless/intersil/prism54/isl_ioctl.c
@@ -1691,6 +1691,7 @@ static int prism54_get_encodeext(struct net_device *ndev,
 	case DOT11_AUTH_BOTH:
 	case DOT11_AUTH_SK:
 		wrqu->encoding.flags |= IW_ENCODE_RESTRICTED;
+		/* fall through */
 	case DOT11_AUTH_OS:
 	default:
 		wrqu->encoding.flags |= IW_ENCODE_OPEN;

From 38a0792d08e98a9aac5bcf638d8533d3fa5ff253 Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Mon, 22 Oct 2018 22:43:05 +0200
Subject: [PATCH 069/124] prism54: islpci_dev: mark expected switch
 fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 114947 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/intersil/prism54/islpci_dev.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/intersil/prism54/islpci_dev.c b/drivers/net/wireless/intersil/prism54/islpci_dev.c
index 325176d4d796..ad6d3a56ae06 100644
--- a/drivers/net/wireless/intersil/prism54/islpci_dev.c
+++ b/drivers/net/wireless/intersil/prism54/islpci_dev.c
@@ -932,6 +932,7 @@ islpci_set_state(islpci_private *priv, islpci_state_t new_state)
 	switch (new_state) {
 	case PRV_STATE_OFF:
 		priv->state_off++;
+		/* fall through */
 	default:
 		priv->state = new_state;
 		break;

From 63fdc952df36b26279ad394a84e454cc74decb89 Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Mon, 22 Oct 2018 22:43:55 +0200
Subject: [PATCH 070/124] mwifiex: Mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/marvell/mwifiex/ie.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/marvell/mwifiex/ie.c b/drivers/net/wireless/marvell/mwifiex/ie.c
index 75cbd609d606..6845eb57b39a 100644
--- a/drivers/net/wireless/marvell/mwifiex/ie.c
+++ b/drivers/net/wireless/marvell/mwifiex/ie.c
@@ -363,6 +363,7 @@ static int mwifiex_uap_parse_tail_ies(struct mwifiex_private *priv,
 						    (const u8 *)hdr,
 						    hdr->len + sizeof(struct ieee_types_header)))
 				break;
+			/* fall through */
 		default:
 			memcpy(gen_ie->ie_buffer + ie_len, hdr,
 			       hdr->len + sizeof(struct ieee_types_header));

From 6eba8fd2235237784dfd01da55c3210d493aebdb Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Mon, 22 Oct 2018 22:44:34 +0200
Subject: [PATCH 071/124] rt2x00: rt2400pci: mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ralink/rt2x00/rt2400pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ralink/rt2x00/rt2400pci.c b/drivers/net/wireless/ralink/rt2x00/rt2400pci.c
index 0bc8b0249c57..49a732798395 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2400pci.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2400pci.c
@@ -1302,7 +1302,7 @@ static void rt2400pci_txdone(struct rt2x00_dev *rt2x00dev,
 			break;
 		case 2: /* Failure, excessive retries */
 			__set_bit(TXDONE_EXCESSIVE_RETRY, &txdesc.flags);
-			/* Don't break, this is a failed frame! */
+			/* Fall through - this is a failed frame! */
 		default: /* Failure */
 			__set_bit(TXDONE_FAILURE, &txdesc.flags);
 		}

From 10bb92217747c3384a01ebec005faa2f5e72bbd8 Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Mon, 22 Oct 2018 22:45:19 +0200
Subject: [PATCH 072/124] rt2x00: rt2500pci: mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ralink/rt2x00/rt2500pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ralink/rt2x00/rt2500pci.c b/drivers/net/wireless/ralink/rt2x00/rt2500pci.c
index 1ff5434798ec..e8e7bfe1ba9b 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2500pci.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2500pci.c
@@ -1430,7 +1430,7 @@ static void rt2500pci_txdone(struct rt2x00_dev *rt2x00dev,
 			break;
 		case 2: /* Failure, excessive retries */
 			__set_bit(TXDONE_EXCESSIVE_RETRY, &txdesc.flags);
-			/* Don't break, this is a failed frame! */
+			/* Fall through - this is a failed frame! */
 		default: /* Failure */
 			__set_bit(TXDONE_FAILURE, &txdesc.flags);
 		}

From 916e6bbcfcff6cc5d7d33bba8557a30f3af50326 Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Mon, 22 Oct 2018 22:46:03 +0200
Subject: [PATCH 073/124] rt2x00: rt2800lib: mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 145198 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
index 9e7b8933d30c..0e95555aec62 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
@@ -2482,6 +2482,7 @@ static void rt2800_config_channel_rf3052(struct rt2x00_dev *rt2x00dev,
 		switch (rt2x00dev->default_ant.tx_chain_num) {
 		case 1:
 			rt2x00_set_field8(&rfcsr, RFCSR1_TX1_PD, 1);
+			/* fall through */
 		case 2:
 			rt2x00_set_field8(&rfcsr, RFCSR1_TX2_PD, 1);
 			break;
@@ -2490,6 +2491,7 @@ static void rt2800_config_channel_rf3052(struct rt2x00_dev *rt2x00dev,
 		switch (rt2x00dev->default_ant.rx_chain_num) {
 		case 1:
 			rt2x00_set_field8(&rfcsr, RFCSR1_RX1_PD, 1);
+			/* fall through */
 		case 2:
 			rt2x00_set_field8(&rfcsr, RFCSR1_RX2_PD, 1);
 			break;
@@ -9457,8 +9459,10 @@ static int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 	switch (rx_chains) {
 	case 3:
 		spec->ht.mcs.rx_mask[2] = 0xff;
+		/* fall through */
 	case 2:
 		spec->ht.mcs.rx_mask[1] = 0xff;
+		/* fall through */
 	case 1:
 		spec->ht.mcs.rx_mask[0] = 0xff;
 		spec->ht.mcs.rx_mask[4] = 0x1; /* MCS32 */

From 641dd8068ecb078e7d12efe465df202bc16ca5eb Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Mon, 22 Oct 2018 22:46:47 +0200
Subject: [PATCH 074/124] rt2x00: rt61pci: mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ralink/rt2x00/rt61pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ralink/rt2x00/rt61pci.c b/drivers/net/wireless/ralink/rt2x00/rt61pci.c
index cb0e1196f2c2..4c5de8fc8f12 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt61pci.c
@@ -2226,7 +2226,7 @@ static void rt61pci_txdone(struct rt2x00_dev *rt2x00dev)
 			break;
 		case 6: /* Failure, excessive retries */
 			__set_bit(TXDONE_EXCESSIVE_RETRY, &txdesc.flags);
-			/* Don't break, this is a failed frame! */
+			/* Fall through - this is a failed frame! */
 		default: /* Failure */
 			__set_bit(TXDONE_FAILURE, &txdesc.flags);
 		}

From d22d2492a35d507ec8edc0797418341bb716d8ff Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Mon, 22 Oct 2018 22:47:20 +0200
Subject: [PATCH 075/124] ray_cs: mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 114948 ("Missing break in switch")
Addresses-Coverity-ID: 114949 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ray_cs.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/wireless/ray_cs.c b/drivers/net/wireless/ray_cs.c
index 08c607c031bc..33ad87528d9a 100644
--- a/drivers/net/wireless/ray_cs.c
+++ b/drivers/net/wireless/ray_cs.c
@@ -889,8 +889,10 @@ static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev,
 	switch (ccsindex = get_free_tx_ccs(local)) {
 	case ECCSBUSY:
 		pr_debug("ray_hw_xmit tx_ccs table busy\n");
+		/* fall through */
 	case ECCSFULL:
 		pr_debug("ray_hw_xmit No free tx ccs\n");
+		/* fall through */
 	case ECARDGONE:
 		netif_stop_queue(dev);
 		return XMIT_NO_CCS;

From 89e54fa4562e74f129a95855b0e81ef5863d618b Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Mon, 22 Oct 2018 22:47:59 +0200
Subject: [PATCH 076/124] rtlwifi: rtl8821ae: phy: Mark expected switch
 fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c
index 176deb2b5386..a75451c246fd 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c
@@ -394,6 +394,7 @@ static void _rtl8812ae_phy_set_rfe_reg_24g(struct ieee80211_hw *hw)
 			rtl_set_bbreg(hw, RB_RFE_INV, BMASKRFEINV, 0x000);
 			break;
 		}
+		/* fall through */
 	case 0:
 	case 2:
 	default:

From 7cbbe1597e4497d14b4d4b22d444a168caae1ce4 Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Mon, 22 Oct 2018 22:48:26 +0200
Subject: [PATCH 077/124] zd1201: mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/zydas/zd1201.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/zydas/zd1201.c b/drivers/net/wireless/zydas/zd1201.c
index 253403899fe9..22c70f1f568c 100644
--- a/drivers/net/wireless/zydas/zd1201.c
+++ b/drivers/net/wireless/zydas/zd1201.c
@@ -969,6 +969,7 @@ static int zd1201_set_mode(struct net_device *dev,
 			 */
 			zd1201_join(zd, "\0-*#\0", 5);
 			/* Put port in pIBSS */
+			/* Fall through */
 		case 8: /* No pseudo-IBSS in wireless extensions (yet) */
 			porttype = ZD1201_PORTTYPE_PSEUDOIBSS;
 			break;

From 96fca788e5788b7ea3b0050eb35a343637e0a465 Mon Sep 17 00:00:00 2001
From: Ali MJ Al-Nasrawy <alimjalnasrawy@gmail.com>
Date: Tue, 23 Oct 2018 19:12:35 +0300
Subject: [PATCH 078/124] brcmsmac: never log "tid x is not agg'able" by
 default

This message greatly spams the log under heavy Tx of frames with BK access
class which is especially true when operating as AP. It is also not informative
as the "agg'ablity" of TIDs are set once and never change.
Fix this by logging only in debug mode.

Signed-off-by: Ali MJ Al-Nasrawy <alimjalnasrawy@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 .../net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c    | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c
index 81ff558046a8..6188275b17e5 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c
@@ -846,8 +846,8 @@ brcms_ops_ampdu_action(struct ieee80211_hw *hw,
 		status = brcms_c_aggregatable(wl->wlc, tid);
 		spin_unlock_bh(&wl->lock);
 		if (!status) {
-			brcms_err(wl->wlc->hw->d11core,
-				  "START: tid %d is not agg\'able\n", tid);
+			brcms_dbg_ht(wl->wlc->hw->d11core,
+				     "START: tid %d is not agg\'able\n", tid);
 			return -EINVAL;
 		}
 		ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);

From 90e3243d16ad1ffef78c2dc56f376cb7f6ca76f8 Mon Sep 17 00:00:00 2001
From: zhong jiang <zhongjiang@huawei.com>
Date: Wed, 24 Oct 2018 13:52:09 +0800
Subject: [PATCH 079/124] rtlwifi: rtl8723ae: Remove set but not used variables
 and #defines

radiob_array_table' and 'radiob_arraylen' are not used after setting its value.
It is safe to remove the unused variable. Meanwhile, radio B array should be
removed as well. because it will no longer be referenced.

Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/realtek/rtlwifi/rtl8723ae/phy.c   | 5 +----
 drivers/net/wireless/realtek/rtlwifi/rtl8723ae/table.c | 4 ----
 drivers/net/wireless/realtek/rtlwifi/rtl8723ae/table.h | 2 --
 3 files changed, 1 insertion(+), 10 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/phy.c b/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/phy.c
index 5cf29f5a4b54..3f3327878b51 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/phy.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/phy.c
@@ -509,13 +509,10 @@ bool rtl8723e_phy_config_rf_with_headerfile(struct ieee80211_hw *hw,
 	int i;
 	bool rtstatus = true;
 	u32 *radioa_array_table;
-	u32 *radiob_array_table;
-	u16 radioa_arraylen, radiob_arraylen;
+	u16 radioa_arraylen;
 
 	radioa_arraylen = RTL8723ERADIOA_1TARRAYLENGTH;
 	radioa_array_table = RTL8723E_RADIOA_1TARRAY;
-	radiob_arraylen = RTL8723E_RADIOB_1TARRAYLENGTH;
-	radiob_array_table = RTL8723E_RADIOB_1TARRAY;
 
 	rtstatus = true;
 
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/table.c b/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/table.c
index 61e86045f15c..1bbee0bfac23 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/table.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/table.c
@@ -475,10 +475,6 @@ u32 RTL8723E_RADIOA_1TARRAY[RTL8723ERADIOA_1TARRAYLENGTH] = {
 	0x000, 0x00030159,
 };
 
-u32 RTL8723E_RADIOB_1TARRAY[RTL8723E_RADIOB_1TARRAYLENGTH] = {
-	0x0,
-};
-
 u32 RTL8723EMAC_ARRAY[RTL8723E_MACARRAYLENGTH] = {
 	0x420, 0x00000080,
 	0x423, 0x00000000,
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/table.h b/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/table.h
index 57a548ceba7d..a044f3c456fa 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/table.h
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/table.h
@@ -36,8 +36,6 @@ extern u32 RTL8723EPHY_REG_1TARRAY[RTL8723E_PHY_REG_1TARRAY_LENGTH];
 extern u32 RTL8723EPHY_REG_ARRAY_PG[RTL8723E_PHY_REG_ARRAY_PGLENGTH];
 #define RTL8723ERADIOA_1TARRAYLENGTH		282
 extern u32 RTL8723E_RADIOA_1TARRAY[RTL8723ERADIOA_1TARRAYLENGTH];
-#define RTL8723E_RADIOB_1TARRAYLENGTH		1
-extern u32 RTL8723E_RADIOB_1TARRAY[RTL8723E_RADIOB_1TARRAYLENGTH];
 #define RTL8723E_MACARRAYLENGTH			172
 extern u32 RTL8723EMAC_ARRAY[RTL8723E_MACARRAYLENGTH];
 #define RTL8723E_AGCTAB_1TARRAYLENGTH		320

From 963b307361bd415b6979910b1ef0c39bfee7f70c Mon Sep 17 00:00:00 2001
From: zhong jiang <zhongjiang@huawei.com>
Date: Wed, 24 Oct 2018 14:07:36 +0800
Subject: [PATCH 080/124] rtlwifi: Remove same duplicated includes

Just remove same duplicated includes.

Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/realtek/rtlwifi/rtl8188ee/trx.c | 1 -
 drivers/net/wireless/realtek/rtlwifi/rtl8821ae/trx.c | 1 -
 2 files changed, 2 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/trx.c b/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/trx.c
index 4c1f8b08fc10..14dcb0816bc0 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/trx.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/trx.c
@@ -29,7 +29,6 @@
 #include "../stats.h"
 #include "reg.h"
 #include "def.h"
-#include "phy.h"
 #include "trx.h"
 #include "led.h"
 #include "dm.h"
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/trx.c b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/trx.c
index d7960dd5bf1a..b01c3c5e21c7 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/trx.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/trx.c
@@ -29,7 +29,6 @@
 #include "../stats.h"
 #include "reg.h"
 #include "def.h"
-#include "phy.h"
 #include "trx.h"
 #include "led.h"
 #include "dm.h"

From 3d39e1bb1c88f32820c5f9271f2c8c2fb9a52bac Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 24 Oct 2018 11:33:34 +0300
Subject: [PATCH 081/124] wireless: airo: potential buffer overflow in
 sprintf()

It looks like we wanted to print a maximum of BSSList_rid.ssidLen bytes
of the ssid, but we accidentally use "%*s" (width) instead of "%.*s"
(precision) so if the ssid doesn't have a NUL terminator this could lead
to an overflow.

Static analysis.  Not tested.

Fixes: e174961ca1a0 ("net: convert print_mac to %pM")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/cisco/airo.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/cisco/airo.c b/drivers/net/wireless/cisco/airo.c
index 04dd7a936593..5512c7f73fce 100644
--- a/drivers/net/wireless/cisco/airo.c
+++ b/drivers/net/wireless/cisco/airo.c
@@ -5462,7 +5462,7 @@ static int proc_BSSList_open( struct inode *inode, struct file *file ) {
            we have to add a spin lock... */
 	rc = readBSSListRid(ai, doLoseSync, &BSSList_rid);
 	while(rc == 0 && BSSList_rid.index != cpu_to_le16(0xffff)) {
-		ptr += sprintf(ptr, "%pM %*s rssi = %d",
+		ptr += sprintf(ptr, "%pM %.*s rssi = %d",
 			       BSSList_rid.bssid,
 				(int)BSSList_rid.ssidLen,
 				BSSList_rid.ssid,

From ae5848cb4511bbbfe0306fcdbe5d9a95cd9546a9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Date: Fri, 26 Oct 2018 13:22:32 +0200
Subject: [PATCH 082/124] brcmutil: print invalid chanspec when WARN-ing
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

On one of my devices I got WARNINGs when brcmfmac tried to decode
chanspec. I couldn't tell if it was some unsupported format or just a
malformed value passed by a firmware.

Print chanspec value so it's possible to debug a possible problem.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 .../net/wireless/broadcom/brcm80211/brcmutil/d11.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmutil/d11.c b/drivers/net/wireless/broadcom/brcm80211/brcmutil/d11.c
index e7584b842dce..40e94fe72f46 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmutil/d11.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmutil/d11.c
@@ -128,7 +128,7 @@ static void brcmu_d11n_decchspec(struct brcmu_chan *ch)
 		}
 		break;
 	default:
-		WARN_ON_ONCE(1);
+		WARN_ONCE(1, "Invalid chanspec 0x%04x\n", ch->chspec);
 		break;
 	}
 
@@ -140,7 +140,7 @@ static void brcmu_d11n_decchspec(struct brcmu_chan *ch)
 		ch->band = BRCMU_CHAN_BAND_2G;
 		break;
 	default:
-		WARN_ON_ONCE(1);
+		WARN_ONCE(1, "Invalid chanspec 0x%04x\n", ch->chspec);
 		break;
 	}
 }
@@ -167,7 +167,7 @@ static void brcmu_d11ac_decchspec(struct brcmu_chan *ch)
 			ch->sb = BRCMU_CHAN_SB_U;
 			ch->control_ch_num += CH_10MHZ_APART;
 		} else {
-			WARN_ON_ONCE(1);
+			WARN_ONCE(1, "Invalid chanspec 0x%04x\n", ch->chspec);
 		}
 		break;
 	case BRCMU_CHSPEC_D11AC_BW_80:
@@ -188,7 +188,7 @@ static void brcmu_d11ac_decchspec(struct brcmu_chan *ch)
 			ch->control_ch_num += CH_30MHZ_APART;
 			break;
 		default:
-			WARN_ON_ONCE(1);
+			WARN_ONCE(1, "Invalid chanspec 0x%04x\n", ch->chspec);
 			break;
 		}
 		break;
@@ -219,13 +219,13 @@ static void brcmu_d11ac_decchspec(struct brcmu_chan *ch)
 			ch->control_ch_num += CH_70MHZ_APART;
 			break;
 		default:
-			WARN_ON_ONCE(1);
+			WARN_ONCE(1, "Invalid chanspec 0x%04x\n", ch->chspec);
 			break;
 		}
 		break;
 	case BRCMU_CHSPEC_D11AC_BW_8080:
 	default:
-		WARN_ON_ONCE(1);
+		WARN_ONCE(1, "Invalid chanspec 0x%04x\n", ch->chspec);
 		break;
 	}
 
@@ -237,7 +237,7 @@ static void brcmu_d11ac_decchspec(struct brcmu_chan *ch)
 		ch->band = BRCMU_CHAN_BAND_2G;
 		break;
 	default:
-		WARN_ON_ONCE(1);
+		WARN_ONCE(1, "Invalid chanspec 0x%04x\n", ch->chspec);
 		break;
 	}
 }

From f4bd758f3f20e3cbcc7bc66880118a2681981e7d Mon Sep 17 00:00:00 2001
From: Yangtao Li <tiny.windzz@gmail.com>
Date: Thu, 1 Nov 2018 11:33:19 -0400
Subject: [PATCH 083/124] cw1200: fix small typo

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/st/cw1200/sta.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/st/cw1200/sta.c b/drivers/net/wireless/st/cw1200/sta.c
index 38678e9a0562..8dae92a79fe1 100644
--- a/drivers/net/wireless/st/cw1200/sta.c
+++ b/drivers/net/wireless/st/cw1200/sta.c
@@ -1123,7 +1123,7 @@ int cw1200_setup_mac(struct cw1200_common *priv)
 	 *
 	 * NOTE2: RSSI based reports have been switched to RCPI, since
 	 * FW has a bug and RSSI reported values are not stable,
-	 * what can leads to signal level oscilations in user-end applications
+	 * what can lead to signal level oscilations in user-end applications
 	 */
 	struct wsm_rcpi_rssi_threshold threshold = {
 		.rssiRcpiMode = WSM_RCPI_RSSI_THRESHOLD_ENABLE |

From ac9ccb8b991cfca7f5847734089115f992bef7ff Mon Sep 17 00:00:00 2001
From: Yangtao Li <tiny.windzz@gmail.com>
Date: Thu, 1 Nov 2018 11:40:23 -0400
Subject: [PATCH 084/124] iwlegacy: fix small typo

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/intel/iwlegacy/3945-rs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/intel/iwlegacy/3945-rs.c b/drivers/net/wireless/intel/iwlegacy/3945-rs.c
index e8983c6a2b7b..a697edd46e7f 100644
--- a/drivers/net/wireless/intel/iwlegacy/3945-rs.c
+++ b/drivers/net/wireless/intel/iwlegacy/3945-rs.c
@@ -781,7 +781,7 @@ il3945_rs_get_rate(void *il_r, struct ieee80211_sta *sta, void *il_sta,
 
 	switch (scale_action) {
 	case -1:
-		/* Decrese rate */
+		/* Decrease rate */
 		if (low != RATE_INVALID)
 			idx = low;
 		break;

From 7d129adff3afbd3a449bc3593f2064ac546d58d3 Mon Sep 17 00:00:00 2001
From: Shaokun Zhang <zhangshaokun@hisilicon.com>
Date: Mon, 5 Nov 2018 19:25:30 +0800
Subject: [PATCH 085/124] rtlwifi: rtl8192de: Fix misleading REG_MCUFWDL
 information

RT_TRACE shows REG_MCUFWDL value as a decimal value with a '0x'
prefix, which is somewhat misleading.

Fix it to print hexadecimal, as was intended.

Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/realtek/rtlwifi/rtl8192de/fw.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192de/fw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192de/fw.c
index 85cedd083d2b..75bfa9dfef4a 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8192de/fw.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192de/fw.c
@@ -173,7 +173,7 @@ static int _rtl92d_fw_init(struct ieee80211_hw *hw)
 			 rtl_read_byte(rtlpriv, FW_MAC1_READY));
 	}
 	RT_TRACE(rtlpriv, COMP_FW, DBG_DMESG,
-		 "Polling FW ready fail!! REG_MCUFWDL:0x%08ul\n",
+		 "Polling FW ready fail!! REG_MCUFWDL:0x%08x\n",
 		 rtl_read_dword(rtlpriv, REG_MCUFWDL));
 	return -1;
 }

From 41c4588b06180aaa46dfc1a7d435befbbf269a93 Mon Sep 17 00:00:00 2001
From: YueHaibing <yuehaibing@huawei.com>
Date: Fri, 5 Oct 2018 10:47:01 +0000
Subject: [PATCH 086/124] iwlwifi: mvm: remove set but not used variable
 'he_phy_data'

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c: In function 'iwl_mvm_rx_mpdu_mq':
drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c:1386:7: warning:
 variable 'he_phy_data' set but not used [-Wunused-but-set-variable]
   u64 he_phy_data;

'he_phy_data' never used since be introduce in
commit 18ead597daa1 ("iwlwifi: support new rx_mpdu_desc api")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
index 26ac9402568d..d5ad390da8f0 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
@@ -1422,12 +1422,6 @@ void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi,
 	/* update aggregation data for monitor sake on default queue */
 	if (!queue && (phy_info & IWL_RX_MPDU_PHY_AMPDU)) {
 		bool toggle_bit = phy_info & IWL_RX_MPDU_PHY_AMPDU_TOGGLE;
-		u64 he_phy_data;
-
-		if (mvm->trans->cfg->device_family >= IWL_DEVICE_FAMILY_22560)
-			he_phy_data = le64_to_cpu(desc->v3.he_phy_data);
-		else
-			he_phy_data = le64_to_cpu(desc->v1.he_phy_data);
 
 		rx_status->flag |= RX_FLAG_AMPDU_DETAILS;
 		rx_status->ampdu_reference = mvm->ampdu_ref;

From 06bc6f6ed4ae0246a5e52094d1be90906a1361c7 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 4 Jul 2018 23:12:33 +0200
Subject: [PATCH 087/124] iwlwifi: mvm: synchronize TID queue removal

When we mark a TID as no longer having a queue, there's no
guarantee the TX path isn't using this txq_id right now,
having accessed it just before we reset the value. To fix
this, add synchronize_net() when we change the TIDs from
having a queue to not having one, so that we can then be
sure that the TX path is no longer accessing that queue.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/mvm/sta.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
index 1887d2b9f185..c2b7bb5d107c 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
@@ -545,6 +545,16 @@ static int iwl_mvm_remove_sta_queue_marking(struct iwl_mvm *mvm, int queue)
 
 	rcu_read_unlock();
 
+	/*
+	 * The TX path may have been using this TXQ_ID from the tid_data,
+	 * so make sure it's no longer running so that we can safely reuse
+	 * this TXQ later. We've set all the TIDs to IWL_MVM_INVALID_QUEUE
+	 * above, but nothing guarantees we've stopped using them. Thus,
+	 * without this, we could get to iwl_mvm_disable_txq() and remove
+	 * the queue while still sending frames to it.
+	 */
+	synchronize_net();
+
 	return disable_agg_tids;
 }
 

From f3f240f973d103069d91e559561436e4148a7bac Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 4 Jul 2018 23:19:13 +0200
Subject: [PATCH 088/124] iwlwifi: mvm: remove queue_info_lock

All the queue management code runs under mvm->mutex, so there are
only very few cases of accessing the data structures without it:
 * TX path, which doesn't take any locks anyway
 * iwl_mvm_wake_sw_queue() and iwl_mvm_stop_sw_queue() where we
   just (atomically) read a bitmap, so the lock isn't needed.

Therefore, we can remove the spinlock. This enables some cleanup
in the ugly locking in iwl_mvm_inactivity_check().

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/mvm/mvm.h  |   1 -
 drivers/net/wireless/intel/iwlwifi/mvm/ops.c  |  13 +--
 drivers/net/wireless/intel/iwlwifi/mvm/sta.c  | 102 ++----------------
 drivers/net/wireless/intel/iwlwifi/mvm/tx.c   |  10 +-
 .../net/wireless/intel/iwlwifi/mvm/utils.c    |   6 +-
 5 files changed, 19 insertions(+), 113 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
index 7ba5bc2ed1c4..8a933774a934 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
@@ -844,7 +844,6 @@ struct iwl_mvm {
 	u16 hw_queue_to_mac80211[IWL_MAX_TVQM_QUEUES];
 
 	struct iwl_mvm_dqa_txq_info queue_info[IWL_MAX_HW_QUEUES];
-	spinlock_t queue_info_lock; /* For syncing queue mgmt operations */
 	struct work_struct add_stream_wk; /* To add streams to queues */
 
 	atomic_t mac80211_queue_stop_count[IEEE80211_MAX_QUEUES];
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
index 0e2092526fae..758aa1f75ca1 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
@@ -676,7 +676,6 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
 	INIT_LIST_HEAD(&mvm->aux_roc_te_list);
 	INIT_LIST_HEAD(&mvm->async_handlers_list);
 	spin_lock_init(&mvm->time_event_lock);
-	spin_lock_init(&mvm->queue_info_lock);
 
 	INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk);
 	INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk);
@@ -1108,11 +1107,7 @@ static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode,
 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
 {
 	struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
-	unsigned long mq;
-
-	spin_lock_bh(&mvm->queue_info_lock);
-	mq = mvm->hw_queue_to_mac80211[hw_queue];
-	spin_unlock_bh(&mvm->queue_info_lock);
+	unsigned long mq = mvm->hw_queue_to_mac80211[hw_queue];
 
 	iwl_mvm_stop_mac_queues(mvm, mq);
 }
@@ -1138,11 +1133,7 @@ void iwl_mvm_start_mac_queues(struct iwl_mvm *mvm, unsigned long mq)
 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
 {
 	struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
-	unsigned long mq;
-
-	spin_lock_bh(&mvm->queue_info_lock);
-	mq = mvm->hw_queue_to_mac80211[hw_queue];
-	spin_unlock_bh(&mvm->queue_info_lock);
+	unsigned long mq = mvm->hw_queue_to_mac80211[hw_queue];
 
 	iwl_mvm_start_mac_queues(mvm, mq);
 }
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
index c2b7bb5d107c..79ccc698ad83 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
@@ -319,9 +319,7 @@ static int iwl_mvm_invalidate_sta_queue(struct iwl_mvm *mvm, int queue,
 	if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
 		return -EINVAL;
 
-	spin_lock_bh(&mvm->queue_info_lock);
 	sta_id = mvm->queue_info[queue].ra_sta_id;
-	spin_unlock_bh(&mvm->queue_info_lock);
 
 	rcu_read_lock();
 
@@ -372,25 +370,17 @@ static int iwl_mvm_disable_txq(struct iwl_mvm *mvm, int queue,
 		return -EINVAL;
 
 	if (iwl_mvm_has_new_tx_api(mvm)) {
-		spin_lock_bh(&mvm->queue_info_lock);
-
 		if (remove_mac_queue)
 			mvm->hw_queue_to_mac80211[queue] &=
 				~BIT(mac80211_queue);
 
-		spin_unlock_bh(&mvm->queue_info_lock);
-
 		iwl_trans_txq_free(mvm->trans, queue);
 
 		return 0;
 	}
 
-	spin_lock_bh(&mvm->queue_info_lock);
-
-	if (WARN_ON(mvm->queue_info[queue].tid_bitmap == 0)) {
-		spin_unlock_bh(&mvm->queue_info_lock);
+	if (WARN_ON(mvm->queue_info[queue].tid_bitmap == 0))
 		return 0;
-	}
 
 	mvm->queue_info[queue].tid_bitmap &= ~BIT(tid);
 
@@ -426,10 +416,8 @@ static int iwl_mvm_disable_txq(struct iwl_mvm *mvm, int queue,
 			    mvm->hw_queue_to_mac80211[queue]);
 
 	/* If the queue is still enabled - nothing left to do in this func */
-	if (cmd.action == SCD_CFG_ENABLE_QUEUE) {
-		spin_unlock_bh(&mvm->queue_info_lock);
+	if (cmd.action == SCD_CFG_ENABLE_QUEUE)
 		return 0;
-	}
 
 	cmd.sta_id = mvm->queue_info[queue].ra_sta_id;
 	cmd.tid = mvm->queue_info[queue].txq_tid;
@@ -448,8 +436,6 @@ static int iwl_mvm_disable_txq(struct iwl_mvm *mvm, int queue,
 	/* Regardless if this is a reserved TXQ for a STA - mark it as false */
 	mvm->queue_info[queue].reserved = false;
 
-	spin_unlock_bh(&mvm->queue_info_lock);
-
 	iwl_trans_txq_disable(mvm->trans, queue, false);
 	ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, flags,
 				   sizeof(struct iwl_scd_txq_cfg_cmd), &cmd);
@@ -474,10 +460,8 @@ static int iwl_mvm_get_queue_agg_tids(struct iwl_mvm *mvm, int queue)
 	if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
 		return -EINVAL;
 
-	spin_lock_bh(&mvm->queue_info_lock);
 	sta_id = mvm->queue_info[queue].ra_sta_id;
 	tid_bitmap = mvm->queue_info[queue].tid_bitmap;
-	spin_unlock_bh(&mvm->queue_info_lock);
 
 	sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id],
 					lockdep_is_held(&mvm->mutex));
@@ -516,10 +500,8 @@ static int iwl_mvm_remove_sta_queue_marking(struct iwl_mvm *mvm, int queue)
 	if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
 		return -EINVAL;
 
-	spin_lock_bh(&mvm->queue_info_lock);
 	sta_id = mvm->queue_info[queue].ra_sta_id;
 	tid_bitmap = mvm->queue_info[queue].tid_bitmap;
-	spin_unlock_bh(&mvm->queue_info_lock);
 
 	rcu_read_lock();
 
@@ -572,11 +554,9 @@ static int iwl_mvm_free_inactive_queue(struct iwl_mvm *mvm, int queue,
 	if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
 		return -EINVAL;
 
-	spin_lock_bh(&mvm->queue_info_lock);
 	txq_curr_ac = mvm->queue_info[queue].mac80211_ac;
 	sta_id = mvm->queue_info[queue].ra_sta_id;
 	tid = mvm->queue_info[queue].txq_tid;
-	spin_unlock_bh(&mvm->queue_info_lock);
 
 	same_sta = sta_id == new_sta_id;
 
@@ -620,7 +600,6 @@ static int iwl_mvm_get_shared_queue(struct iwl_mvm *mvm,
 	 * by the inactivity checker.
 	 */
 	lockdep_assert_held(&mvm->mutex);
-	lockdep_assert_held(&mvm->queue_info_lock);
 
 	if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
 		return -EINVAL;
@@ -706,10 +685,7 @@ static int iwl_mvm_scd_queue_redirect(struct iwl_mvm *mvm, int queue, int tid,
 	 * value 3 and VO with value 0, so to check if ac X is lower than ac Y
 	 * we need to check if the numerical value of X is LARGER than of Y.
 	 */
-	spin_lock_bh(&mvm->queue_info_lock);
 	if (ac <= mvm->queue_info[queue].mac80211_ac && !force) {
-		spin_unlock_bh(&mvm->queue_info_lock);
-
 		IWL_DEBUG_TX_QUEUES(mvm,
 				    "No redirection needed on TXQ #%d\n",
 				    queue);
@@ -721,7 +697,6 @@ static int iwl_mvm_scd_queue_redirect(struct iwl_mvm *mvm, int queue, int tid,
 	cmd.tid = mvm->queue_info[queue].txq_tid;
 	mq = mvm->hw_queue_to_mac80211[queue];
 	shared_queue = hweight16(mvm->queue_info[queue].tid_bitmap) > 1;
-	spin_unlock_bh(&mvm->queue_info_lock);
 
 	IWL_DEBUG_TX_QUEUES(mvm, "Redirecting TXQ #%d to FIFO #%d\n",
 			    queue, iwl_mvm_ac_to_tx_fifo[ac]);
@@ -747,9 +722,7 @@ static int iwl_mvm_scd_queue_redirect(struct iwl_mvm *mvm, int queue, int tid,
 	iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, NULL, wdg_timeout);
 
 	/* Update the TID "owner" of the queue */
-	spin_lock_bh(&mvm->queue_info_lock);
 	mvm->queue_info[queue].txq_tid = tid;
-	spin_unlock_bh(&mvm->queue_info_lock);
 
 	/* TODO: Work-around SCD bug when moving back by multiples of 0x40 */
 
@@ -758,9 +731,7 @@ static int iwl_mvm_scd_queue_redirect(struct iwl_mvm *mvm, int queue, int tid,
 			     cmd.sta_id, tid, IWL_FRAME_LIMIT, ssn);
 
 	/* Update AC marking of the queue */
-	spin_lock_bh(&mvm->queue_info_lock);
 	mvm->queue_info[queue].mac80211_ac = ac;
-	spin_unlock_bh(&mvm->queue_info_lock);
 
 	/*
 	 * Mark queue as shared in transport if shared
@@ -783,7 +754,7 @@ static int iwl_mvm_find_free_queue(struct iwl_mvm *mvm, u8 sta_id,
 {
 	int i;
 
-	lockdep_assert_held(&mvm->queue_info_lock);
+	lockdep_assert_held(&mvm->mutex);
 
 	/* This should not be hit with new TX path */
 	if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
@@ -863,11 +834,8 @@ static bool iwl_mvm_update_txq_mapping(struct iwl_mvm *mvm, int queue,
 {
 	bool enable_queue = true;
 
-	spin_lock_bh(&mvm->queue_info_lock);
-
 	/* Make sure this TID isn't already enabled */
 	if (mvm->queue_info[queue].tid_bitmap & BIT(tid)) {
-		spin_unlock_bh(&mvm->queue_info_lock);
 		IWL_ERR(mvm, "Trying to enable TXQ %d with existing TID %d\n",
 			queue, tid);
 		return false;
@@ -903,8 +871,6 @@ static bool iwl_mvm_update_txq_mapping(struct iwl_mvm *mvm, int queue,
 			    queue, mvm->queue_info[queue].tid_bitmap,
 			    mvm->hw_queue_to_mac80211[queue]);
 
-	spin_unlock_bh(&mvm->queue_info_lock);
-
 	return enable_queue;
 }
 
@@ -959,9 +925,7 @@ static void iwl_mvm_change_queue_tid(struct iwl_mvm *mvm, int queue)
 	if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
 		return;
 
-	spin_lock_bh(&mvm->queue_info_lock);
 	tid_bitmap = mvm->queue_info[queue].tid_bitmap;
-	spin_unlock_bh(&mvm->queue_info_lock);
 
 	if (WARN(!tid_bitmap, "TXQ %d has no tids assigned to it\n", queue))
 		return;
@@ -978,9 +942,7 @@ static void iwl_mvm_change_queue_tid(struct iwl_mvm *mvm, int queue)
 		return;
 	}
 
-	spin_lock_bh(&mvm->queue_info_lock);
 	mvm->queue_info[queue].txq_tid = tid;
-	spin_unlock_bh(&mvm->queue_info_lock);
 	IWL_DEBUG_TX_QUEUES(mvm, "Changed TXQ %d ownership to tid %d\n",
 			    queue, tid);
 }
@@ -1002,10 +964,8 @@ static void iwl_mvm_unshare_queue(struct iwl_mvm *mvm, int queue)
 
 	lockdep_assert_held(&mvm->mutex);
 
-	spin_lock_bh(&mvm->queue_info_lock);
 	sta_id = mvm->queue_info[queue].ra_sta_id;
 	tid_bitmap = mvm->queue_info[queue].tid_bitmap;
-	spin_unlock_bh(&mvm->queue_info_lock);
 
 	/* Find TID for queue, and make sure it is the only one on the queue */
 	tid = find_first_bit(&tid_bitmap, IWL_MAX_TID_COUNT + 1);
@@ -1062,9 +1022,7 @@ static void iwl_mvm_unshare_queue(struct iwl_mvm *mvm, int queue)
 		}
 	}
 
-	spin_lock_bh(&mvm->queue_info_lock);
 	mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY;
-	spin_unlock_bh(&mvm->queue_info_lock);
 }
 
 /*
@@ -1083,7 +1041,7 @@ static bool iwl_mvm_remove_inactive_tids(struct iwl_mvm *mvm,
 	int tid;
 
 	lockdep_assert_held(&mvmsta->lock);
-	lockdep_assert_held(&mvm->queue_info_lock);
+	lockdep_assert_held(&mvm->mutex);
 
 	if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
 		return false;
@@ -1184,8 +1142,6 @@ static int iwl_mvm_inactivity_check(struct iwl_mvm *mvm, u8 alloc_for_sta)
 	if (iwl_mvm_has_new_tx_api(mvm))
 		return -ENOSPC;
 
-	spin_lock_bh(&mvm->queue_info_lock);
-
 	rcu_read_lock();
 
 	/* we skip the CMD queue below by starting at 1 */
@@ -1240,12 +1196,7 @@ static int iwl_mvm_inactivity_check(struct iwl_mvm *mvm, u8 alloc_for_sta)
 
 		mvmsta = iwl_mvm_sta_from_mac80211(sta);
 
-		/* this isn't so nice, but works OK due to the way we loop */
-		spin_unlock(&mvm->queue_info_lock);
-
-		/* and we need this locking order */
-		spin_lock(&mvmsta->lock);
-		spin_lock(&mvm->queue_info_lock);
+		spin_lock_bh(&mvmsta->lock);
 		ret = iwl_mvm_remove_inactive_tids(mvm, mvmsta, i,
 						   inactive_tid_bitmap,
 						   &unshare_queues,
@@ -1253,11 +1204,10 @@ static int iwl_mvm_inactivity_check(struct iwl_mvm *mvm, u8 alloc_for_sta)
 		if (ret >= 0 && free_queue < 0)
 			free_queue = ret;
 		/* only unlock sta lock - we still need the queue info lock */
-		spin_unlock(&mvmsta->lock);
+		spin_unlock_bh(&mvmsta->lock);
 	}
 
 	rcu_read_unlock();
-	spin_unlock_bh(&mvm->queue_info_lock);
 
 	/* Reconfigure queues requiring reconfiguation */
 	for_each_set_bit(i, &unshare_queues, IWL_MAX_HW_QUEUES)
@@ -1306,8 +1256,6 @@ static int iwl_mvm_sta_alloc_queue(struct iwl_mvm *mvm,
 	tfd_queue_mask = mvmsta->tfd_queue_msk;
 	spin_unlock_bh(&mvmsta->lock);
 
-	spin_lock_bh(&mvm->queue_info_lock);
-
 	/*
 	 * Non-QoS, QoS NDP and MGMT frames should go to a MGMT queue, if one
 	 * exists
@@ -1337,12 +1285,8 @@ static int iwl_mvm_sta_alloc_queue(struct iwl_mvm *mvm,
 						IWL_MVM_DQA_MIN_DATA_QUEUE,
 						IWL_MVM_DQA_MAX_DATA_QUEUE);
 	if (queue < 0) {
-		spin_unlock_bh(&mvm->queue_info_lock);
-
 		/* try harder - perhaps kill an inactive queue */
 		queue = iwl_mvm_inactivity_check(mvm, mvmsta->sta_id);
-
-		spin_lock_bh(&mvm->queue_info_lock);
 	}
 
 	/* No free queue - we'll have to share */
@@ -1363,8 +1307,6 @@ static int iwl_mvm_sta_alloc_queue(struct iwl_mvm *mvm,
 	if (queue > 0 && !shared_queue)
 		mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY;
 
-	spin_unlock_bh(&mvm->queue_info_lock);
-
 	/* This shouldn't happen - out of queues */
 	if (WARN_ON(queue <= 0)) {
 		IWL_ERR(mvm, "No available queues for tid %d on sta_id %d\n",
@@ -1566,8 +1508,6 @@ static int iwl_mvm_reserve_sta_stream(struct iwl_mvm *mvm,
 	/* run the general cleanup/unsharing of queues */
 	iwl_mvm_inactivity_check(mvm, IWL_MVM_INVALID_STA);
 
-	spin_lock_bh(&mvm->queue_info_lock);
-
 	/* Make sure we have free resources for this STA */
 	if (vif_type == NL80211_IFTYPE_STATION && !sta->tdls &&
 	    !mvm->queue_info[IWL_MVM_DQA_BSS_CLIENT_QUEUE].tid_bitmap &&
@@ -1579,19 +1519,15 @@ static int iwl_mvm_reserve_sta_stream(struct iwl_mvm *mvm,
 						IWL_MVM_DQA_MIN_DATA_QUEUE,
 						IWL_MVM_DQA_MAX_DATA_QUEUE);
 	if (queue < 0) {
-		spin_unlock_bh(&mvm->queue_info_lock);
 		/* try again - this time kick out a queue if needed */
 		queue = iwl_mvm_inactivity_check(mvm, mvmsta->sta_id);
 		if (queue < 0) {
 			IWL_ERR(mvm, "No available queues for new station\n");
 			return -ENOSPC;
 		}
-		spin_lock_bh(&mvm->queue_info_lock);
 	}
 	mvm->queue_info[queue].status = IWL_MVM_QUEUE_RESERVED;
 
-	spin_unlock_bh(&mvm->queue_info_lock);
-
 	mvmsta->reserved_queue = queue;
 
 	IWL_DEBUG_TX_QUEUES(mvm, "Reserving data queue #%d for sta_id %d\n",
@@ -2014,18 +1950,14 @@ int iwl_mvm_rm_sta(struct iwl_mvm *mvm,
 		 * is still marked as IWL_MVM_QUEUE_RESERVED, and
 		 * should be manually marked as free again
 		 */
-		spin_lock_bh(&mvm->queue_info_lock);
 		status = &mvm->queue_info[reserved_txq].status;
 		if (WARN((*status != IWL_MVM_QUEUE_RESERVED) &&
 			 (*status != IWL_MVM_QUEUE_FREE),
 			 "sta_id %d reserved txq %d status %d",
-			 sta_id, reserved_txq, *status)) {
-			spin_unlock_bh(&mvm->queue_info_lock);
+			 sta_id, reserved_txq, *status))
 			return -EINVAL;
-		}
 
 		*status = IWL_MVM_QUEUE_FREE;
-		spin_unlock_bh(&mvm->queue_info_lock);
 	}
 
 	if (vif->type == NL80211_IFTYPE_STATION &&
@@ -2883,8 +2815,6 @@ int iwl_mvm_sta_tx_agg_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 		return -EIO;
 	}
 
-	spin_lock(&mvm->queue_info_lock);
-
 	/*
 	 * Note the possible cases:
 	 *  1. An enabled TXQ - TXQ needs to become agg'ed
@@ -2899,7 +2829,7 @@ int iwl_mvm_sta_tx_agg_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 		if (txq_id < 0) {
 			ret = txq_id;
 			IWL_ERR(mvm, "Failed to allocate agg queue\n");
-			goto release_locks;
+			goto out;
 		}
 
 		/* TXQ hasn't yet been enabled, so mark it only as reserved */
@@ -2910,11 +2840,9 @@ int iwl_mvm_sta_tx_agg_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 		IWL_DEBUG_TX_QUEUES(mvm,
 				    "Can't start tid %d agg on shared queue!\n",
 				    tid);
-		goto release_locks;
+		goto out;
 	}
 
-	spin_unlock(&mvm->queue_info_lock);
-
 	IWL_DEBUG_TX_QUEUES(mvm,
 			    "AGG for tid %d will be on queue #%d\n",
 			    tid, txq_id);
@@ -2945,10 +2873,7 @@ int iwl_mvm_sta_tx_agg_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	}
 
 	ret = 0;
-	goto out;
 
-release_locks:
-	spin_unlock(&mvm->queue_info_lock);
 out:
 	spin_unlock_bh(&mvmsta->lock);
 
@@ -3017,9 +2942,7 @@ int iwl_mvm_sta_tx_agg_oper(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 
 	cfg.fifo = iwl_mvm_ac_to_tx_fifo[tid_to_mac80211_ac[tid]];
 
-	spin_lock_bh(&mvm->queue_info_lock);
 	queue_status = mvm->queue_info[queue].status;
-	spin_unlock_bh(&mvm->queue_info_lock);
 
 	/* Maybe there is no need to even alloc a queue... */
 	if (mvm->queue_info[queue].status == IWL_MVM_QUEUE_READY)
@@ -3065,9 +2988,7 @@ int iwl_mvm_sta_tx_agg_oper(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	}
 
 	/* No need to mark as reserved */
-	spin_lock_bh(&mvm->queue_info_lock);
 	mvm->queue_info[queue].status = IWL_MVM_QUEUE_READY;
-	spin_unlock_bh(&mvm->queue_info_lock);
 
 out:
 	/*
@@ -3093,10 +3014,11 @@ static void iwl_mvm_unreserve_agg_queue(struct iwl_mvm *mvm,
 {
 	u16 txq_id = tid_data->txq_id;
 
+	lockdep_assert_held(&mvm->mutex);
+
 	if (iwl_mvm_has_new_tx_api(mvm))
 		return;
 
-	spin_lock_bh(&mvm->queue_info_lock);
 	/*
 	 * The TXQ is marked as reserved only if no traffic came through yet
 	 * This means no traffic has been sent on this TID (agg'd or not), so
@@ -3108,8 +3030,6 @@ static void iwl_mvm_unreserve_agg_queue(struct iwl_mvm *mvm,
 		mvm->queue_info[txq_id].status = IWL_MVM_QUEUE_FREE;
 		tid_data->txq_id = IWL_MVM_INVALID_QUEUE;
 	}
-
-	spin_unlock_bh(&mvm->queue_info_lock);
 }
 
 int iwl_mvm_sta_tx_agg_stop(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
index ec57682efe54..320453f51ec7 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
@@ -1160,11 +1160,11 @@ static int iwl_mvm_tx_mpdu(struct iwl_mvm *mvm, struct sk_buff *skb,
 		 * If we have timed-out TIDs - schedule the worker that will
 		 * reconfig the queues and update them
 		 *
-		 * Note that the mvm->queue_info_lock isn't being taken here in
-		 * order to not serialize the TX flow. This isn't dangerous
-		 * because scheduling mvm->add_stream_wk can't ruin the state,
-		 * and if we DON'T schedule it due to some race condition then
-		 * next TX we get here we will.
+		 * Note that the no lock is taken here in order to not serialize
+		 * the TX flow. This isn't dangerous because scheduling
+		 * mvm->add_stream_wk can't ruin the state, and if we DON'T
+		 * schedule it due to some race condition then next TX we get
+		 * here we will.
 		 */
 		if (unlikely(mvm->queue_info[txq_id].status ==
 			     IWL_MVM_QUEUE_SHARED &&
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/utils.c b/drivers/net/wireless/intel/iwlwifi/mvm/utils.c
index 818e1180bbdd..11730d018e20 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/utils.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/utils.c
@@ -618,13 +618,9 @@ int iwl_mvm_reconfig_scd(struct iwl_mvm *mvm, int queue, int fifo, int sta_id,
 	if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
 		return -EINVAL;
 
-	spin_lock_bh(&mvm->queue_info_lock);
 	if (WARN(mvm->queue_info[queue].tid_bitmap == 0,
-		 "Trying to reconfig unallocated queue %d\n", queue)) {
-		spin_unlock_bh(&mvm->queue_info_lock);
+		 "Trying to reconfig unallocated queue %d\n", queue))
 		return -ENXIO;
-	}
-	spin_unlock_bh(&mvm->queue_info_lock);
 
 	IWL_DEBUG_TX_QUEUES(mvm, "Reconfig SCD for TXQ #%d\n", queue);
 

From 8954e1eb2270fa2effffd031b4839253952c76f2 Mon Sep 17 00:00:00 2001
From: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Date: Wed, 4 Jul 2018 15:31:36 +0300
Subject: [PATCH 089/124] iwlwifi: trans: Clear persistence bit when starting
 the FW

In D3 suspend flow in 9260 gen2 HW, the NIC receives two PERST signals.
The first PERST is expected and indicates the device on coming resume flow.
The second PERST causes FW restart FW restart.
In order to avoid this issue, the FW set the persistence bit on.
Once this bit is set, the FW ignores reset attempts.
The problem is when the FW gets assert during D3 and then the persistence
bit is set and causes the FW to ignore reset.
To handle this issue, the FW opens the preg bit which allows access
to the persistence bit, so that the driver clear the persistence bit
and reset the NIC.

The flow is as follows:
the driver checks if the persistence bit is set.
If the bit is set, the driver checks if he can clear the bit.
If the driver can not clear the bit then there is no point to continue
configuring the NIC since it will fail.

The fix was added is in start HW flow instead of the resume flow since in
general, if the persistence bit is set, the driver can not start the FW.
So it is good to check it when we start configuring the NIC.

The driver does not need to close the preg bit since the FW close it
during the start flow.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/iwl-prph.h   |  7 +++++++
 drivers/net/wireless/intel/iwlwifi/pcie/trans.c | 12 ++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-prph.h b/drivers/net/wireless/intel/iwlwifi/iwl-prph.h
index 0f51c7bea8d0..2084c63dc670 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-prph.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-prph.h
@@ -8,6 +8,7 @@
  * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
  * Copyright(c) 2016        Intel Deutschland GmbH
+ * Copyright (C) 2018 Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -30,6 +31,7 @@
  * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
  * Copyright(c) 2016        Intel Deutschland GmbH
+ * Copyright (C) 2018 Intel Corporation
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -394,6 +396,7 @@ enum aux_misc_master1_en {
 #define AUX_MISC_MASTER1_SMPHR_STATUS	0xA20800
 #define RSA_ENABLE			0xA24B08
 #define PREG_AUX_BUS_WPROT_0		0xA04CC0
+#define PREG_PRPH_WPROT_0		0xA04CE0
 #define SB_CPU_1_STATUS			0xA01E30
 #define SB_CPU_2_STATUS			0xA01E34
 #define UMAG_SB_CPU_1_STATUS		0xA038C0
@@ -420,4 +423,8 @@ enum {
 #define UREG_CHICK		(0xA05C00)
 #define UREG_CHICK_MSI_ENABLE	BIT(24)
 #define UREG_CHICK_MSIX_ENABLE	BIT(25)
+
+#define HPM_DEBUG			0xA03440
+#define PERSISTENCE_BIT			BIT(12)
+#define PREG_WFPM_ACCESS		BIT(12)
 #endif				/* __iwl_prph_h__ */
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
index 5bafb3f46eb8..890b51b223a1 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
@@ -1729,6 +1729,7 @@ static int iwl_pcie_init_msix_handler(struct pci_dev *pdev,
 static int _iwl_trans_pcie_start_hw(struct iwl_trans *trans, bool low_power)
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
+	u32 hpm;
 	int err;
 
 	lockdep_assert_held(&trans_pcie->mutex);
@@ -1739,6 +1740,17 @@ static int _iwl_trans_pcie_start_hw(struct iwl_trans *trans, bool low_power)
 		return err;
 	}
 
+	hpm = iwl_trans_read_prph(trans, HPM_DEBUG);
+	if (hpm != 0xa5a5a5a0 && (hpm & PERSISTENCE_BIT)) {
+		if (iwl_trans_read_prph(trans, PREG_PRPH_WPROT_0) &
+		    PREG_WFPM_ACCESS) {
+			IWL_ERR(trans,
+				"Error, can not clear persistence bit\n");
+			return -EPERM;
+		}
+		iwl_trans_write_prph(trans, HPM_DEBUG, hpm & ~PERSISTENCE_BIT);
+	}
+
 	iwl_trans_pcie_sw_reset(trans);
 
 	err = iwl_pcie_apm_init(trans);

From 47242744109d50175b2fc6134de14e4195effe17 Mon Sep 17 00:00:00 2001
From: Tova Mussai <tova.mussai@intel.com>
Date: Mon, 2 Jul 2018 09:08:29 +0300
Subject: [PATCH 090/124] iwlwifi: mvm: enable low latency for soft ap

Enable low latency for softAP in all modes (standalone, SCM
and DCM).
This is in order to minimize the time the softAP leaves the channel for
other operations

Signed-off-by: Tova Mussai <tova.mussai@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 .../wireless/intel/iwlwifi/mvm/debugfs-vif.c  |  5 ++-
 .../net/wireless/intel/iwlwifi/mvm/mac80211.c | 12 ++++++
 drivers/net/wireless/intel/iwlwifi/mvm/mvm.h  |  4 ++
 .../net/wireless/intel/iwlwifi/mvm/utils.c    | 42 +++++++++++--------
 4 files changed, 43 insertions(+), 20 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c
index 1aa6c7e93088..e9767bbdea1e 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c
@@ -1299,10 +1299,11 @@ static ssize_t iwl_dbgfs_low_latency_read(struct file *file,
 	int len;
 
 	len = scnprintf(buf, sizeof(buf) - 1,
-			"traffic=%d\ndbgfs=%d\nvcmd=%d\n",
+			"traffic=%d\ndbgfs=%d\nvcmd=%d\nvif_type=%d\n",
 			!!(mvmvif->low_latency & LOW_LATENCY_TRAFFIC),
 			!!(mvmvif->low_latency & LOW_LATENCY_DEBUGFS),
-			!!(mvmvif->low_latency & LOW_LATENCY_VCMD));
+			!!(mvmvif->low_latency & LOW_LATENCY_VCMD),
+			!!(mvmvif->low_latency & LOW_LATENCY_VIF_TYPE));
 	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 }
 
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index 505b0385d800..5bdc638fc999 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -2379,6 +2379,12 @@ static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
 	/* must be set before quota calculations */
 	mvmvif->ap_ibss_active = true;
 
+	if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) {
+		iwl_mvm_vif_set_low_latency(mvmvif, true,
+					    LOW_LATENCY_VIF_TYPE);
+		iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id);
+	}
+
 	/* power updated needs to be done before quotas */
 	iwl_mvm_power_update_mac(mvm);
 
@@ -2441,6 +2447,12 @@ static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
 	mvmvif->ap_ibss_active = false;
 	mvm->ap_last_beacon_gp2 = 0;
 
+	if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) {
+		iwl_mvm_vif_set_low_latency(mvmvif, false,
+					    LOW_LATENCY_VIF_TYPE);
+		iwl_mvm_send_low_latency_cmd(mvm, false,  mvmvif->id);
+	}
+
 	iwl_mvm_bt_coex_vif_change(mvm);
 
 	iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
index 8a933774a934..03fdc8b1892d 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
@@ -303,11 +303,13 @@ enum iwl_bt_force_ant_mode {
 * @LOW_LATENCY_TRAFFIC: indicates low latency traffic was detected
 * @LOW_LATENCY_DEBUGFS: low latency mode set from debugfs
 * @LOW_LATENCY_VCMD: low latency mode set from vendor command
+* @LOW_LATENCY_VIF_TYPE: low latency mode set because of vif type (ap)
 */
 enum iwl_mvm_low_latency_cause {
 	LOW_LATENCY_TRAFFIC = BIT(0),
 	LOW_LATENCY_DEBUGFS = BIT(1),
 	LOW_LATENCY_VCMD = BIT(2),
+	LOW_LATENCY_VIF_TYPE = BIT(3),
 };
 
 /**
@@ -1845,6 +1847,8 @@ int iwl_mvm_update_low_latency(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 /* get SystemLowLatencyMode - only needed for beacon threshold? */
 bool iwl_mvm_low_latency(struct iwl_mvm *mvm);
 bool iwl_mvm_low_latency_band(struct iwl_mvm *mvm, enum nl80211_band band);
+void iwl_mvm_send_low_latency_cmd(struct iwl_mvm *mvm, bool low_latency,
+				  u16 mac_id);
 
 /* get VMACLowLatencyMode */
 static inline bool iwl_mvm_vif_low_latency(struct iwl_mvm_vif *mvmvif)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/utils.c b/drivers/net/wireless/intel/iwlwifi/mvm/utils.c
index 11730d018e20..3fd673128d51 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/utils.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/utils.c
@@ -764,6 +764,29 @@ bool iwl_mvm_rx_diversity_allowed(struct iwl_mvm *mvm)
 	return result;
 }
 
+void iwl_mvm_send_low_latency_cmd(struct iwl_mvm *mvm,
+				  bool low_latency, u16 mac_id)
+{
+	struct iwl_mac_low_latency_cmd cmd = {
+		.mac_id = cpu_to_le32(mac_id)
+	};
+
+	if (!fw_has_capa(&mvm->fw->ucode_capa,
+			 IWL_UCODE_TLV_CAPA_DYNAMIC_QUOTA))
+		return;
+
+	if (low_latency) {
+		/* currently we don't care about the direction */
+		cmd.low_latency_rx = 1;
+		cmd.low_latency_tx = 1;
+	}
+
+	if (iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(LOW_LATENCY_CMD,
+						 MAC_CONF_GROUP, 0),
+				 0, sizeof(cmd), &cmd))
+		IWL_ERR(mvm, "Failed to send low latency command\n");
+}
+
 int iwl_mvm_update_low_latency(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 			       bool low_latency,
 			       enum iwl_mvm_low_latency_cause cause)
@@ -782,24 +805,7 @@ int iwl_mvm_update_low_latency(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	if (low_latency == prev)
 		return 0;
 
-	if (fw_has_capa(&mvm->fw->ucode_capa,
-			IWL_UCODE_TLV_CAPA_DYNAMIC_QUOTA)) {
-		struct iwl_mac_low_latency_cmd cmd = {
-			.mac_id = cpu_to_le32(mvmvif->id)
-		};
-
-		if (low_latency) {
-			/* currently we don't care about the direction */
-			cmd.low_latency_rx = 1;
-			cmd.low_latency_tx = 1;
-		}
-		res = iwl_mvm_send_cmd_pdu(mvm,
-					   iwl_cmd_id(LOW_LATENCY_CMD,
-						      MAC_CONF_GROUP, 0),
-					   0, sizeof(cmd), &cmd);
-		if (res)
-			IWL_ERR(mvm, "Failed to send low latency command\n");
-	}
+	iwl_mvm_send_low_latency_cmd(mvm, low_latency, mvmvif->id);
 
 	res = iwl_mvm_update_quotas(mvm, false, NULL);
 	if (res)

From 656fca00f317011dad2f089b3aa1fb0c22558e30 Mon Sep 17 00:00:00 2001
From: Avraham Stern <avraham.stern@intel.com>
Date: Thu, 5 Jul 2018 17:34:03 +0300
Subject: [PATCH 091/124] iwlwifi: mvm: switch management tx antenna only on tx
 failure

Switch the antenna used for management tx only if previous tx failed.
If previous tx succeeded, there is no reason to switch antennas.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c | 7 ++-----
 drivers/net/wireless/intel/iwlwifi/mvm/mvm.h      | 5 +++++
 drivers/net/wireless/intel/iwlwifi/mvm/ops.c      | 2 ++
 drivers/net/wireless/intel/iwlwifi/mvm/scan.c     | 4 +---
 drivers/net/wireless/intel/iwlwifi/mvm/tx.c       | 8 ++++----
 5 files changed, 14 insertions(+), 12 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c
index 6486cfb33f40..b9c45a40e251 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c
@@ -965,11 +965,8 @@ static void iwl_mvm_mac_ctxt_set_tx(struct iwl_mvm *mvm,
 	tx->tx_flags = cpu_to_le32(tx_flags);
 
 	if (!fw_has_capa(&mvm->fw->ucode_capa,
-			 IWL_UCODE_TLV_CAPA_BEACON_ANT_SELECTION)) {
-		mvm->mgmt_last_antenna_idx =
-			iwl_mvm_next_antenna(mvm, iwl_mvm_get_valid_tx_ant(mvm),
-					     mvm->mgmt_last_antenna_idx);
-	}
+			 IWL_UCODE_TLV_CAPA_BEACON_ANT_SELECTION))
+		iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx);
 
 	tx->rate_n_flags =
 		cpu_to_le32(BIT(mvm->mgmt_last_antenna_idx) <<
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
index 03fdc8b1892d..707bc7d1f37f 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
@@ -1522,6 +1522,11 @@ static inline u8 iwl_mvm_get_valid_rx_ant(struct iwl_mvm *mvm)
 	       mvm->fw->valid_rx_ant;
 }
 
+static inline void iwl_mvm_toggle_tx_ant(struct iwl_mvm *mvm, u8 *ant)
+{
+	*ant = iwl_mvm_next_antenna(mvm, iwl_mvm_get_valid_tx_ant(mvm), *ant);
+}
+
 static inline u32 iwl_mvm_get_phy_config(struct iwl_mvm *mvm)
 {
 	u32 phy_config = ~(FW_PHY_CFG_TX_CHAIN |
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
index 758aa1f75ca1..0d5b55ed8dda 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
@@ -845,6 +845,8 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
 
 	iwl_mvm_tof_init(mvm);
 
+	iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx);
+
 	return op_mode;
 
  out_unregister:
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
index cfb784fea77b..cb376e869144 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
@@ -205,9 +205,7 @@ iwl_mvm_scan_rate_n_flags(struct iwl_mvm *mvm, enum nl80211_band band,
 {
 	u32 tx_ant;
 
-	mvm->scan_last_antenna_idx =
-		iwl_mvm_next_antenna(mvm, iwl_mvm_get_valid_tx_ant(mvm),
-				     mvm->scan_last_antenna_idx);
+	iwl_mvm_toggle_tx_ant(mvm, &mvm->scan_last_antenna_idx);
 	tx_ant = BIT(mvm->scan_last_antenna_idx) << RATE_MCS_ANT_POS;
 
 	if (band == NL80211_BAND_2GHZ && !no_cck)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
index 320453f51ec7..ac4fa0363942 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
@@ -381,10 +381,6 @@ void iwl_mvm_set_tx_cmd_rate(struct iwl_mvm *mvm, struct iwl_tx_cmd *tx_cmd,
 			cpu_to_le32(TX_CMD_FLG_ACK | TX_CMD_FLG_BAR);
 	}
 
-	mvm->mgmt_last_antenna_idx =
-		iwl_mvm_next_antenna(mvm, iwl_mvm_get_valid_tx_ant(mvm),
-				     mvm->mgmt_last_antenna_idx);
-
 	/* Set the rate in the TX cmd */
 	tx_cmd->rate_n_flags = cpu_to_le32(iwl_mvm_get_tx_rate(mvm, info, sta));
 }
@@ -1501,6 +1497,10 @@ static void iwl_mvm_rx_tx_cmd_single(struct iwl_mvm *mvm,
 			break;
 		}
 
+		if ((status & TX_STATUS_MSK) != TX_STATUS_SUCCESS &&
+		    ieee80211_is_mgmt(hdr->frame_control))
+			iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx);
+
 		/*
 		 * If we are freeing multiple frames, mark all the frames
 		 * but the first one as acked, since they were acknowledged

From 5c2dbebb446539eb9640bf59a02756d6e7f1fc53 Mon Sep 17 00:00:00 2001
From: Naftali Goldstein <naftali.goldstein@intel.com>
Date: Sun, 15 Jul 2018 15:26:27 +0300
Subject: [PATCH 092/124] iwlwifi: fw: do not set sgi bits for HE connection

If the association supports HE, HT/VHT rates will never be used for Tx
and therefore there's no need to set the sgi-per-channel-width-support
bits, so don't set them in this case.

Fixes: 110b32f065f3 ("iwlwifi: mvm: rs: add basic implementation of the new RS API handlers")
Signed-off-by: Naftali Goldstein <naftali.goldstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c
index 7a98e1a1dc40..dabbc04853ac 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c
@@ -98,8 +98,12 @@ static u8 rs_fw_sgi_cw_support(struct ieee80211_sta *sta)
 {
 	struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
 	struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap;
+	struct ieee80211_sta_he_cap *he_cap = &sta->he_cap;
 	u8 supp = 0;
 
+	if (he_cap && he_cap->has_he)
+		return 0;
+
 	if (ht_cap->cap & IEEE80211_HT_CAP_SGI_20)
 		supp |= BIT(IWL_TLC_MNG_CH_WIDTH_20MHZ);
 	if (ht_cap->cap & IEEE80211_HT_CAP_SGI_40)

From 0dde2440a77fe48495c8e99108003291db81e1a5 Mon Sep 17 00:00:00 2001
From: Avraham Stern <avraham.stern@intel.com>
Date: Wed, 11 Jul 2018 10:30:20 +0300
Subject: [PATCH 093/124] iwlwifi: mvm: toggle tx antenna if tx fails during
 connection establishment

If tx fails during connection establishment, try another antenna for
the next tx. This will increase the chance to establish connection if
one of the antennas is blocked.  Note that the antenna is toggled even
when failing to tx data frames since connection establishment may use
EAPOLs for 802.1X authentication/ 4 way handshake.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/mvm/sta.c |  2 +
 drivers/net/wireless/intel/iwlwifi/mvm/sta.h |  4 ++
 drivers/net/wireless/intel/iwlwifi/mvm/tx.c  | 65 +++++++++++++++-----
 3 files changed, 56 insertions(+), 15 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
index 79ccc698ad83..e82194836f03 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
@@ -1768,6 +1768,8 @@ int iwl_mvm_add_sta(struct iwl_mvm *mvm,
 	if (iwl_mvm_has_tlc_offload(mvm))
 		iwl_mvm_rs_add_sta(mvm, mvm_sta);
 
+	iwl_mvm_toggle_tx_ant(mvm, &mvm_sta->tx_ant);
+
 update_fw:
 	ret = iwl_mvm_sta_send_to_fw(mvm, sta, sta_update, sta_flags);
 	if (ret)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.h b/drivers/net/wireless/intel/iwlwifi/mvm/sta.h
index de1a0a2d8723..d52cd888f77d 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.h
@@ -397,6 +397,9 @@ struct iwl_mvm_rxq_dup_data {
  * @ptk_pn: per-queue PTK PN data structures
  * @dup_data: per queue duplicate packet detection data
  * @deferred_traffic_tid_map: indication bitmap of deferred traffic per-TID
+ * @tx_ant: the index of the antenna to use for data tx to this station. Only
+ *	used during connection establishment (e.g. for the 4 way handshake
+ *	exchange).
  *
  * When mac80211 creates a station it reserves some space (hw->sta_data_size)
  * in the structure for use by driver. This structure is placed in that
@@ -439,6 +442,7 @@ struct iwl_mvm_sta {
 	u8 agg_tids;
 	u8 sleep_tx_count;
 	u8 avg_energy;
+	u8 tx_ant;
 };
 
 u16 iwl_mvm_tid_queued(struct iwl_mvm *mvm, struct iwl_mvm_tid_data *tid_data);
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
index ac4fa0363942..09cabf336310 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
@@ -302,13 +302,30 @@ void iwl_mvm_set_tx_cmd(struct iwl_mvm *mvm, struct sk_buff *skb,
 					    offload_assist));
 }
 
+static u32 iwl_mvm_get_tx_ant(struct iwl_mvm *mvm,
+			      struct ieee80211_tx_info *info,
+			      struct ieee80211_sta *sta, __le16 fc)
+{
+	if (info->band == NL80211_BAND_2GHZ &&
+	    !iwl_mvm_bt_coex_is_shared_ant_avail(mvm))
+		return mvm->cfg->non_shared_ant << RATE_MCS_ANT_POS;
+
+	if (sta && ieee80211_is_data(fc)) {
+		struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
+
+		return BIT(mvmsta->tx_ant) << RATE_MCS_ANT_POS;
+	}
+
+	return BIT(mvm->mgmt_last_antenna_idx) << RATE_MCS_ANT_POS;
+}
+
 static u32 iwl_mvm_get_tx_rate(struct iwl_mvm *mvm,
 			       struct ieee80211_tx_info *info,
 			       struct ieee80211_sta *sta)
 {
 	int rate_idx;
 	u8 rate_plcp;
-	u32 rate_flags;
+	u32 rate_flags = 0;
 
 	/* HT rate doesn't make sense for a non data frame */
 	WARN_ONCE(info->control.rates[0].flags & IEEE80211_TX_RC_MCS,
@@ -332,13 +349,6 @@ static u32 iwl_mvm_get_tx_rate(struct iwl_mvm *mvm,
 	/* Get PLCP rate for tx_cmd->rate_n_flags */
 	rate_plcp = iwl_mvm_mac80211_idx_to_hwrate(rate_idx);
 
-	if (info->band == NL80211_BAND_2GHZ &&
-	    !iwl_mvm_bt_coex_is_shared_ant_avail(mvm))
-		rate_flags = mvm->cfg->non_shared_ant << RATE_MCS_ANT_POS;
-	else
-		rate_flags =
-			BIT(mvm->mgmt_last_antenna_idx) << RATE_MCS_ANT_POS;
-
 	/* Set CCK flag as needed */
 	if ((rate_idx >= IWL_FIRST_CCK_RATE) && (rate_idx <= IWL_LAST_CCK_RATE))
 		rate_flags |= RATE_MCS_CCK_MSK;
@@ -346,6 +356,14 @@ static u32 iwl_mvm_get_tx_rate(struct iwl_mvm *mvm,
 	return (u32)rate_plcp | rate_flags;
 }
 
+static u32 iwl_mvm_get_tx_rate_n_flags(struct iwl_mvm *mvm,
+				       struct ieee80211_tx_info *info,
+				       struct ieee80211_sta *sta, __le16 fc)
+{
+	return iwl_mvm_get_tx_rate(mvm, info, sta) |
+		iwl_mvm_get_tx_ant(mvm, info, sta, fc);
+}
+
 /*
  * Sets the fields in the Tx cmd that are rate related
  */
@@ -373,16 +391,21 @@ void iwl_mvm_set_tx_cmd_rate(struct iwl_mvm *mvm, struct iwl_tx_cmd *tx_cmd,
 	 */
 
 	if (ieee80211_is_data(fc) && sta) {
-		tx_cmd->initial_rate_index = 0;
-		tx_cmd->tx_flags |= cpu_to_le32(TX_CMD_FLG_STA_RATE);
-		return;
+		struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
+
+		if (mvmsta->sta_state >= IEEE80211_STA_AUTHORIZED) {
+			tx_cmd->initial_rate_index = 0;
+			tx_cmd->tx_flags |= cpu_to_le32(TX_CMD_FLG_STA_RATE);
+			return;
+		}
 	} else if (ieee80211_is_back_req(fc)) {
 		tx_cmd->tx_flags |=
 			cpu_to_le32(TX_CMD_FLG_ACK | TX_CMD_FLG_BAR);
 	}
 
 	/* Set the rate in the TX cmd */
-	tx_cmd->rate_n_flags = cpu_to_le32(iwl_mvm_get_tx_rate(mvm, info, sta));
+	tx_cmd->rate_n_flags =
+		cpu_to_le32(iwl_mvm_get_tx_rate_n_flags(mvm, info, sta, fc));
 }
 
 static inline void iwl_mvm_set_tx_cmd_pn(struct ieee80211_tx_info *info,
@@ -487,6 +510,8 @@ iwl_mvm_set_tx_params(struct iwl_mvm *mvm, struct sk_buff *skb,
 		u16 offload_assist = 0;
 		u32 rate_n_flags = 0;
 		u16 flags = 0;
+		struct iwl_mvm_sta *mvmsta = sta ?
+			iwl_mvm_sta_from_mac80211(sta) : NULL;
 
 		if (ieee80211_is_data_qos(hdr->frame_control)) {
 			u8 *qc = ieee80211_get_qos_ctl(hdr);
@@ -506,10 +531,16 @@ iwl_mvm_set_tx_params(struct iwl_mvm *mvm, struct sk_buff *skb,
 		if (!info->control.hw_key)
 			flags |= IWL_TX_FLAGS_ENCRYPT_DIS;
 
-		/* For data packets rate info comes from the fw */
-		if (!(ieee80211_is_data(hdr->frame_control) && sta)) {
+		/*
+		 * For data packets rate info comes from the fw. Only
+		 * set rate/antenna during connection establishment.
+		 */
+		if (sta && (!ieee80211_is_data(hdr->frame_control) ||
+			    mvmsta->sta_state < IEEE80211_STA_AUTHORIZED)) {
 			flags |= IWL_TX_FLAGS_CMD_RATE;
-			rate_n_flags = iwl_mvm_get_tx_rate(mvm, info, sta);
+			rate_n_flags =
+				iwl_mvm_get_tx_rate_n_flags(mvm, info, sta,
+							    hdr->frame_control);
 		}
 
 		if (mvm->trans->cfg->device_family >=
@@ -1600,6 +1631,10 @@ static void iwl_mvm_rx_tx_cmd_single(struct iwl_mvm *mvm,
 		iwl_mvm_tx_airtime(mvm, mvmsta,
 				   le16_to_cpu(tx_resp->wireless_media_time));
 
+		if ((status & TX_STATUS_MSK) != TX_STATUS_SUCCESS &&
+		    mvmsta->sta_state < IEEE80211_STA_AUTHORIZED)
+			iwl_mvm_toggle_tx_ant(mvm, &mvmsta->tx_ant);
+
 		if (sta->wme && tid != IWL_MGMT_TID) {
 			struct iwl_mvm_tid_data *tid_data =
 				&mvmsta->tid_data[tid];

From f09450e32adeb4f1a878b23275571a532ab9d99e Mon Sep 17 00:00:00 2001
From: Sara Sharon <sara.sharon@intel.com>
Date: Thu, 19 Jul 2018 09:15:11 +0300
Subject: [PATCH 094/124] iwlwifi: pcie: don't reset TXQ write pointer

Currently code sets the write pointer when getting the TX queue
allocate response. This causes a redundant interrupt with any actual
change in the pointer. Remove this write altogether.

Fixes: 310181ec34e2 ("iwlwifi: move to TVQM mode")
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c b/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c
index e880f69eac26..0c5f11d2c5da 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c
@@ -1228,8 +1228,7 @@ int iwl_trans_pcie_txq_alloc_response(struct iwl_trans *trans,
 	/* Place first TFD at index corresponding to start sequence number */
 	txq->read_ptr = wr_ptr;
 	txq->write_ptr = wr_ptr;
-	iwl_write_direct32(trans, HBUS_TARG_WRPTR,
-			   (txq->write_ptr) | (qid << 16));
+
 	IWL_DEBUG_TX_QUEUES(trans, "Activate queue %d\n", qid);
 
 	iwl_free_resp(hcmd);

From 124e0eba908b061e5d7e0c60e87e6325e7555117 Mon Sep 17 00:00:00 2001
From: Sara Sharon <sara.sharon@intel.com>
Date: Mon, 23 Jul 2018 13:50:02 +0300
Subject: [PATCH 095/124] iwlwifi: dbg: avoid passing trigger around

The trigger structure is being passed around, when
all we care about is whether to dump only monitor
or not. Pass a bool instead.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/fw/dbg.c   | 20 +++++++++----------
 drivers/net/wireless/intel/iwlwifi/fw/dbg.h   |  3 +--
 .../net/wireless/intel/iwlwifi/fw/runtime.h   |  2 +-
 .../net/wireless/intel/iwlwifi/iwl-trans.h    |  8 +++-----
 drivers/net/wireless/intel/iwlwifi/mvm/d3.c   |  2 +-
 drivers/net/wireless/intel/iwlwifi/mvm/ops.c  |  2 +-
 .../net/wireless/intel/iwlwifi/pcie/trans.c   |  4 ++--
 7 files changed, 18 insertions(+), 23 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
index c16757051f16..310af0d60101 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
@@ -655,13 +655,8 @@ _iwl_fw_error_dump(struct iwl_fw_runtime *fwrt,
 	u32 smem_len = fwrt->fw->dbg.n_mem_tlv ? 0 : fwrt->trans->cfg->smem_len;
 	u32 sram2_len = fwrt->fw->dbg.n_mem_tlv ?
 				0 : fwrt->trans->cfg->dccm2_len;
-	bool monitor_dump_only = false;
 	int i;
 
-	if (fwrt->dump.trig &&
-	    fwrt->dump.trig->mode & IWL_FW_DBG_TRIGGER_MONITOR_ONLY)
-		monitor_dump_only = true;
-
 	/* SRAM - include stack CCM if driver knows the values for it */
 	if (!fwrt->trans->cfg->dccm_offset || !fwrt->trans->cfg->dccm_len) {
 		const struct fw_img *img;
@@ -727,7 +722,7 @@ _iwl_fw_error_dump(struct iwl_fw_runtime *fwrt,
 	}
 
 	/* If we only want a monitor dump, reset the file length */
-	if (monitor_dump_only) {
+	if (fwrt->dump.monitor_only) {
 		file_len = sizeof(*dump_file) + sizeof(*dump_data) * 2 +
 			   sizeof(*dump_info) + sizeof(*dump_smem_cfg);
 	}
@@ -817,7 +812,7 @@ _iwl_fw_error_dump(struct iwl_fw_runtime *fwrt,
 	}
 
 	/* In case we only want monitor dump, skip to dump trasport data */
-	if (monitor_dump_only)
+	if (fwrt->dump.monitor_only)
 		goto out;
 
 	if (fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_MEM)) {
@@ -932,7 +927,7 @@ void iwl_fw_error_dump(struct iwl_fw_runtime *fwrt)
 	}
 
 	fw_error_dump->trans_ptr = iwl_trans_dump_data(fwrt->trans,
-						       fwrt->dump.trig);
+						       fwrt->dump.monitor_only);
 	file_len = le32_to_cpu(dump_file->file_len);
 	fw_error_dump->fwrt_len = file_len;
 	if (fw_error_dump->trans_ptr) {
@@ -998,7 +993,8 @@ void iwl_fw_alive_error_dump(struct iwl_fw_runtime *fwrt)
 IWL_EXPORT_SYMBOL(iwl_fw_alive_error_dump);
 
 int iwl_fw_dbg_collect_desc(struct iwl_fw_runtime *fwrt,
-			    const struct iwl_fw_dump_desc *desc, void *trigger,
+			    const struct iwl_fw_dump_desc *desc,
+			    bool monitor_only,
 			    unsigned int delay)
 {
 	/*
@@ -1028,7 +1024,7 @@ int iwl_fw_dbg_collect_desc(struct iwl_fw_runtime *fwrt,
 		 le32_to_cpu(desc->trig_desc.type));
 
 	fwrt->dump.desc = desc;
-	fwrt->dump.trig = trigger;
+	fwrt->dump.monitor_only = monitor_only;
 
 	schedule_delayed_work(&fwrt->dump.wk, delay);
 
@@ -1043,6 +1039,7 @@ int iwl_fw_dbg_collect(struct iwl_fw_runtime *fwrt,
 {
 	struct iwl_fw_dump_desc *desc;
 	unsigned int delay = 0;
+	bool monitor_only = false;
 
 	if (trigger) {
 		u16 occurrences = le16_to_cpu(trigger->occurrences) - 1;
@@ -1059,6 +1056,7 @@ int iwl_fw_dbg_collect(struct iwl_fw_runtime *fwrt,
 
 		trigger->occurrences = cpu_to_le16(occurrences);
 		delay = le16_to_cpu(trigger->trig_dis_ms);
+		monitor_only = trigger->mode & IWL_FW_DBG_TRIGGER_MONITOR_ONLY;
 	}
 
 	desc = kzalloc(sizeof(*desc) + len, GFP_ATOMIC);
@@ -1070,7 +1068,7 @@ int iwl_fw_dbg_collect(struct iwl_fw_runtime *fwrt,
 	desc->trig_desc.type = cpu_to_le32(trig);
 	memcpy(desc->trig_desc.data, str, len);
 
-	return iwl_fw_dbg_collect_desc(fwrt, desc, trigger, delay);
+	return iwl_fw_dbg_collect_desc(fwrt, desc, monitor_only, delay);
 }
 IWL_EXPORT_SYMBOL(iwl_fw_dbg_collect);
 
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.h b/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
index 6f8d3256f7b0..b56d787ffc1e 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
@@ -101,13 +101,12 @@ static inline void iwl_fw_free_dump_desc(struct iwl_fw_runtime *fwrt)
 	if (fwrt->dump.desc != &iwl_dump_desc_assert)
 		kfree(fwrt->dump.desc);
 	fwrt->dump.desc = NULL;
-	fwrt->dump.trig = NULL;
 }
 
 void iwl_fw_error_dump(struct iwl_fw_runtime *fwrt);
 int iwl_fw_dbg_collect_desc(struct iwl_fw_runtime *fwrt,
 			    const struct iwl_fw_dump_desc *desc,
-			    void *trigger, unsigned int delay);
+			    bool monitor_only, unsigned int delay);
 int iwl_fw_dbg_collect(struct iwl_fw_runtime *fwrt,
 		       enum iwl_fw_dbg_trigger trig,
 		       const char *str, size_t len,
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/runtime.h b/drivers/net/wireless/intel/iwlwifi/fw/runtime.h
index 6b95d0e75889..8a139431e7be 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/runtime.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/runtime.h
@@ -131,7 +131,7 @@ struct iwl_fw_runtime {
 	/* debug */
 	struct {
 		const struct iwl_fw_dump_desc *desc;
-		const struct iwl_fw_dbg_trigger_tlv *trig;
+		bool monitor_only;
 		struct delayed_work wk;
 
 		u8 conf;
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
index 26b3c73051ca..f384a98a021c 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
@@ -602,8 +602,7 @@ struct iwl_trans_ops {
 	void (*resume)(struct iwl_trans *trans);
 
 	struct iwl_trans_dump_data *(*dump_data)(struct iwl_trans *trans,
-						 const struct iwl_fw_dbg_trigger_tlv
-						 *trigger);
+						 bool monitor_only);
 };
 
 /**
@@ -897,12 +896,11 @@ static inline void iwl_trans_resume(struct iwl_trans *trans)
 }
 
 static inline struct iwl_trans_dump_data *
-iwl_trans_dump_data(struct iwl_trans *trans,
-		    const struct iwl_fw_dbg_trigger_tlv *trigger)
+iwl_trans_dump_data(struct iwl_trans *trans, bool monitor_only)
 {
 	if (!trans->ops->dump_data)
 		return NULL;
-	return trans->ops->dump_data(trans, trigger);
+	return trans->ops->dump_data(trans, monitor_only);
 }
 
 static inline struct iwl_device_cmd *
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
index 843f3b41b72e..9b018d00f78f 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
@@ -1956,7 +1956,7 @@ static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test)
 		set_bit(STATUS_FW_ERROR, &mvm->trans->status);
 		iwl_mvm_dump_nic_error_log(mvm);
 		iwl_fw_dbg_collect_desc(&mvm->fwrt, &iwl_dump_desc_assert,
-					NULL, 0);
+					false, 0);
 		ret = 1;
 		goto err;
 	}
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
index 0d5b55ed8dda..2291661dd72d 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
@@ -1233,7 +1233,7 @@ void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
 	 */
 	if (!mvm->fw_restart && fw_error) {
 		iwl_fw_dbg_collect_desc(&mvm->fwrt, &iwl_dump_desc_assert,
-					NULL, 0);
+					false, 0);
 	} else if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
 		struct iwl_mvm_reprobe *reprobe;
 
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
index 890b51b223a1..551ce439647b 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
@@ -2990,7 +2990,7 @@ static int iwl_trans_get_fw_monitor_len(struct iwl_trans *trans, int *len)
 
 static struct iwl_trans_dump_data
 *iwl_trans_pcie_dump_data(struct iwl_trans *trans,
-			  const struct iwl_fw_dbg_trigger_tlv *trigger)
+			  bool monitor_only)
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 	struct iwl_fw_error_dump_data *data;
@@ -3014,7 +3014,7 @@ static struct iwl_trans_dump_data
 	/* FW monitor */
 	monitor_len = iwl_trans_get_fw_monitor_len(trans, &len);
 
-	if (trigger && (trigger->mode & IWL_FW_DBG_TRIGGER_MONITOR_ONLY)) {
+	if (monitor_only) {
 		if (!(trans->dbg_dump_mask &
 		      BIT(IWL_FW_ERROR_DUMP_FW_MONITOR)))
 			return NULL;

From 18ab513ebfd34d4422ad8923ff610ae35033acd6 Mon Sep 17 00:00:00 2001
From: Naftali Goldstein <naftali.goldstein@intel.com>
Date: Wed, 25 Jul 2018 15:52:20 +0300
Subject: [PATCH 096/124] iwlwifi: mvm: add description to a few generic assert
 numbers

FW asserts 0x70, 0x71, and 0x73 all just mean that the real error
happened in another MAC, and to look there for the problem. Add their
descriptions to the assert number lookup table so users get a nicer
error message in the logs.
Also, since the 4 most-significant bits of the assert number are
dynamic, and depend on which MAC the assert occurred on, ignore those
bits when looking up the assert name.

Signed-off-by: Naftali Goldstein <naftali.goldstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/mvm/utils.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/utils.c b/drivers/net/wireless/intel/iwlwifi/mvm/utils.c
index 3fd673128d51..3761fbfff292 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/utils.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/utils.c
@@ -285,6 +285,7 @@ u8 iwl_mvm_next_antenna(struct iwl_mvm *mvm, u8 valid, u8 last_idx)
 	return last_idx;
 }
 
+#define FW_SYSASSERT_CPU_MASK 0xf0000000
 static const struct {
 	const char *name;
 	u8 num;
@@ -301,6 +302,9 @@ static const struct {
 	{ "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C },
 	{ "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 },
 	{ "NMI_INTERRUPT_HOST", 0x66 },
+	{ "NMI_INTERRUPT_LMAC_FATAL", 0x70 },
+	{ "NMI_INTERRUPT_UMAC_FATAL", 0x71 },
+	{ "NMI_INTERRUPT_OTHER_LMAC_FATAL", 0x73 },
 	{ "NMI_INTERRUPT_ACTION_PT", 0x7C },
 	{ "NMI_INTERRUPT_UNKNOWN", 0x84 },
 	{ "NMI_INTERRUPT_INST_ACTION_PT", 0x86 },
@@ -312,7 +316,7 @@ static const char *desc_lookup(u32 num)
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(advanced_lookup) - 1; i++)
-		if (advanced_lookup[i].num == num)
+		if (advanced_lookup[i].num == (num & ~FW_SYSASSERT_CPU_MASK))
 			return advanced_lookup[i].name;
 
 	/* No entry matches 'num', so it is the last: ADVANCED_SYSASSERT */

From dc1aca22f8f38b7e2ad7b118db87404d11e68771 Mon Sep 17 00:00:00 2001
From: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Date: Tue, 24 Jul 2018 21:57:50 +0300
Subject: [PATCH 097/124] iwlwifi: mvm: Send non offchannel traffic via AP sta

TDLS discovery response frame is a unicast direct frame to the peer.
Since we don't have a STA for this peer, this frame goes through
iwl_tx_skb_non_sta(). As the result aux_sta and some completely
arbitrary queue would be selected for this frame, resulting in a queue
hang.  Fix that by sending such frames through AP sta instead.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index 5bdc638fc999..55b965629e33 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -809,6 +809,21 @@ static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
 	    !ieee80211_is_bufferable_mmpdu(hdr->frame_control))
 		sta = NULL;
 
+	/* If there is no sta, and it's not offchannel - send through AP */
+	if (info->control.vif->type == NL80211_IFTYPE_STATION &&
+	    info->hw_queue != IWL_MVM_OFFCHANNEL_QUEUE && !sta) {
+		struct iwl_mvm_vif *mvmvif =
+			iwl_mvm_vif_from_mac80211(info->control.vif);
+		u8 ap_sta_id = READ_ONCE(mvmvif->ap_sta_id);
+
+		if (ap_sta_id < IWL_MVM_STATION_COUNT) {
+			/* mac80211 holds rcu read lock */
+			sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]);
+			if (IS_ERR_OR_NULL(sta))
+				goto drop;
+		}
+	}
+
 	if (sta) {
 		if (iwl_mvm_defer_tx(mvm, sta, skb))
 			return;

From e488e593a79f4238156d2c0f5cbba2fd6457344f Mon Sep 17 00:00:00 2001
From: Sara Sharon <sara.sharon@intel.com>
Date: Mon, 30 Jul 2018 09:43:24 +0300
Subject: [PATCH 098/124] iwlwifi: dbg: use helper to check if debug type is
 set

This enables to incorporate more logic in one place.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/fw/dbg.c | 36 ++++++++++-----------
 drivers/net/wireless/intel/iwlwifi/fw/dbg.h |  7 +++-
 2 files changed, 24 insertions(+), 19 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
index 310af0d60101..aebdf433b409 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
@@ -240,7 +240,7 @@ static void iwl_fw_dump_fifos(struct iwl_fw_runtime *fwrt,
 	if (!iwl_trans_grab_nic_access(fwrt->trans, &flags))
 		return;
 
-	if (fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_RXF)) {
+	if (iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_RXF)) {
 		/* Pull RXF1 */
 		iwl_fwrt_dump_rxf(fwrt, dump_data,
 				  cfg->lmac[0].rxfifo1_size, 0, 0);
@@ -254,7 +254,7 @@ static void iwl_fw_dump_fifos(struct iwl_fw_runtime *fwrt,
 					  LMAC2_PRPH_OFFSET, 2);
 	}
 
-	if (fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_TXF)) {
+	if (iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_TXF)) {
 		/* Pull TXF data from LMAC1 */
 		for (i = 0; i < fwrt->smem_cfg.num_txfifo_entries; i++) {
 			/* Mark the number of TXF we're pulling now */
@@ -279,7 +279,7 @@ static void iwl_fw_dump_fifos(struct iwl_fw_runtime *fwrt,
 		}
 	}
 
-	if (fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_INTERNAL_TXF) &&
+	if (iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_INTERNAL_TXF) &&
 	    fw_has_capa(&fwrt->fw->ucode_capa,
 			IWL_UCODE_TLV_CAPA_EXTEND_SHARED_MEM_CFG)) {
 		/* Pull UMAC internal TXF data from all TXFs */
@@ -603,7 +603,7 @@ static int iwl_fw_fifo_len(struct iwl_fw_runtime *fwrt,
 	u32 fifo_len = 0;
 	int i;
 
-	if (!(fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_RXF)))
+	if (!iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_RXF))
 		goto dump_txf;
 
 	/* Count RXF2 size */
@@ -614,7 +614,7 @@ static int iwl_fw_fifo_len(struct iwl_fw_runtime *fwrt,
 		ADD_LEN(fifo_len, mem_cfg->lmac[i].rxfifo1_size, hdr_len);
 
 dump_txf:
-	if (!(fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_TXF)))
+	if (!iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_TXF))
 		goto dump_internal_txf;
 
 	/* Count TXF sizes */
@@ -627,7 +627,7 @@ static int iwl_fw_fifo_len(struct iwl_fw_runtime *fwrt,
 	}
 
 dump_internal_txf:
-	if (!((fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_INTERNAL_TXF)) &&
+	if (!(iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_INTERNAL_TXF) &&
 	      fw_has_capa(&fwrt->fw->ucode_capa,
 			  IWL_UCODE_TLV_CAPA_EXTEND_SHARED_MEM_CFG)))
 		goto out;
@@ -675,22 +675,22 @@ _iwl_fw_error_dump(struct iwl_fw_runtime *fwrt,
 
 		/* Make room for PRPH registers */
 		if (!fwrt->trans->cfg->gen2 &&
-		    fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_PRPH))
+		   iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_PRPH))
 			prph_len += iwl_fw_get_prph_len(fwrt);
 
 		if (fwrt->trans->cfg->device_family == IWL_DEVICE_FAMILY_7000 &&
-		    fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_RADIO_REG))
+		    iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_RADIO_REG))
 			radio_len = sizeof(*dump_data) + RADIO_REG_MAX_READ;
 	}
 
 	file_len = sizeof(*dump_file) + fifo_len + prph_len + radio_len;
 
-	if (fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_DEV_FW_INFO))
+	if (iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_DEV_FW_INFO))
 		file_len += sizeof(*dump_data) + sizeof(*dump_info);
-	if (fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_MEM_CFG))
+	if (iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_MEM_CFG))
 		file_len += sizeof(*dump_data) + sizeof(*dump_smem_cfg);
 
-	if (fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_MEM)) {
+	if (iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_MEM)) {
 		size_t hdr_len = sizeof(*dump_data) +
 				 sizeof(struct iwl_fw_error_dump_mem);
 
@@ -707,7 +707,7 @@ _iwl_fw_error_dump(struct iwl_fw_runtime *fwrt,
 	}
 
 	/* Make room for fw's virtual image pages, if it exists */
-	if (fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_PAGING) &&
+	if (iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_PAGING) &&
 	    !fwrt->trans->cfg->gen2 &&
 	    fwrt->fw->img[fwrt->cur_fw_img].paging_mem_size &&
 	    fwrt->fw_paging_db[0].fw_paging_block)
@@ -727,7 +727,7 @@ _iwl_fw_error_dump(struct iwl_fw_runtime *fwrt,
 			   sizeof(*dump_info) + sizeof(*dump_smem_cfg);
 	}
 
-	if (fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_ERROR_INFO) &&
+	if (iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_ERROR_INFO) &&
 	    fwrt->dump.desc)
 		file_len += sizeof(*dump_data) + sizeof(*dump_trig) +
 			    fwrt->dump.desc->len;
@@ -741,7 +741,7 @@ _iwl_fw_error_dump(struct iwl_fw_runtime *fwrt,
 	dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER);
 	dump_data = (void *)dump_file->data;
 
-	if (fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_DEV_FW_INFO)) {
+	if (iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_DEV_FW_INFO)) {
 		dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO);
 		dump_data->len = cpu_to_le32(sizeof(*dump_info));
 		dump_info = (void *)dump_data->data;
@@ -762,7 +762,7 @@ _iwl_fw_error_dump(struct iwl_fw_runtime *fwrt,
 		dump_data = iwl_fw_error_next_data(dump_data);
 	}
 
-	if (fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_MEM_CFG)) {
+	if (iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_MEM_CFG)) {
 		/* Dump shared memory configuration */
 		dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_CFG);
 		dump_data->len = cpu_to_le32(sizeof(*dump_smem_cfg));
@@ -799,7 +799,7 @@ _iwl_fw_error_dump(struct iwl_fw_runtime *fwrt,
 			iwl_read_radio_regs(fwrt, &dump_data);
 	}
 
-	if (fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_ERROR_INFO) &&
+	if (iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_ERROR_INFO) &&
 	    fwrt->dump.desc) {
 		dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_ERROR_INFO);
 		dump_data->len = cpu_to_le32(sizeof(*dump_trig) +
@@ -815,7 +815,7 @@ _iwl_fw_error_dump(struct iwl_fw_runtime *fwrt,
 	if (fwrt->dump.monitor_only)
 		goto out;
 
-	if (fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_MEM)) {
+	if (iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_MEM)) {
 		const struct iwl_fw_dbg_mem_seg_tlv *fw_dbg_mem =
 			fwrt->fw->dbg.mem_tlv;
 
@@ -860,7 +860,7 @@ _iwl_fw_error_dump(struct iwl_fw_runtime *fwrt,
 	}
 
 	/* Dump fw's virtual image */
-	if (fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_PAGING) &&
+	if (iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_PAGING) &&
 	    !fwrt->trans->cfg->gen2 &&
 	    fwrt->fw->img[fwrt->cur_fw_img].paging_mem_size &&
 	    fwrt->fw_paging_db[0].fw_paging_block) {
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.h b/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
index b56d787ffc1e..0d5169c4cf51 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
@@ -309,12 +309,17 @@ static inline void iwl_fw_dump_conf_clear(struct iwl_fw_runtime *fwrt)
 
 void iwl_fw_error_dump_wk(struct work_struct *work);
 
+static inline bool iwl_fw_dbg_type_on(struct iwl_fw_runtime *fwrt, u32 type)
+{
+	return (fwrt->fw->dbg.dump_mask & BIT(type));
+}
+
 static inline bool iwl_fw_dbg_is_d3_debug_enabled(struct iwl_fw_runtime *fwrt)
 {
 	return fw_has_capa(&fwrt->fw->ucode_capa,
 			   IWL_UCODE_TLV_CAPA_D3_DEBUG) &&
 		fwrt->trans->cfg->d3_debug_data_length &&
-		fwrt->fw->dbg.dump_mask & BIT(IWL_FW_ERROR_DUMP_D3_DEBUG_DATA);
+		iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_D3_DEBUG_DATA);
 }
 
 void iwl_fw_dbg_read_d3_debug_data(struct iwl_fw_runtime *fwrt);

From 618e1701a2a41b2cf79d6e10d41dc23178f59597 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Mon, 30 Jul 2018 15:57:08 +0300
Subject: [PATCH 099/124] iwlwifi: mvm: remove unused conversion table

chanwidths isn't used now in debugfs-vif.c.  Remove it.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c
index e9767bbdea1e..33b0af24a537 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c
@@ -1441,15 +1441,6 @@ static ssize_t iwl_dbgfs_quota_min_read(struct file *file,
 	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 }
 
-static const char * const chanwidths[] = {
-	[NL80211_CHAN_WIDTH_20_NOHT] = "noht",
-	[NL80211_CHAN_WIDTH_20] = "ht20",
-	[NL80211_CHAN_WIDTH_40] = "ht40",
-	[NL80211_CHAN_WIDTH_80] = "vht80",
-	[NL80211_CHAN_WIDTH_80P80] = "vht80p80",
-	[NL80211_CHAN_WIDTH_160] = "vht160",
-};
-
 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
 	_MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct ieee80211_vif)
 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \

From f108703cb5f199d0fc98517ac29a997c4c646c94 Mon Sep 17 00:00:00 2001
From: Ihab Zhaika <ihab.zhaika@intel.com>
Date: Tue, 31 Jul 2018 09:53:09 +0300
Subject: [PATCH 100/124] iwlwifi: add new cards for 9560, 9462, 9461 and
 killer series

add few PCI ID'S for 9560, 9462, 9461 and killer series.

Cc: stable@vger.kernel.org
Signed-off-by: Ihab Zhaika <ihab.zhaika@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/pcie/drv.c | 50 +++++++++++++++++++
 1 file changed, 50 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
index 9e015212c2c0..8d4711590dfc 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
@@ -513,6 +513,56 @@ static const struct pci_device_id iwl_hw_card_ids[] = {
 	{IWL_PCI_DEVICE(0x24FD, 0x9074, iwl8265_2ac_cfg)},
 
 /* 9000 Series */
+	{IWL_PCI_DEVICE(0x02F0, 0x0030, iwl9560_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x02F0, 0x0034, iwl9560_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x02F0, 0x0038, iwl9560_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x02F0, 0x003C, iwl9560_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x02F0, 0x0060, iwl9461_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x02F0, 0x0064, iwl9461_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x02F0, 0x00A0, iwl9462_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x02F0, 0x00A4, iwl9462_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x02F0, 0x0230, iwl9560_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x02F0, 0x0234, iwl9560_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x02F0, 0x0238, iwl9560_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x02F0, 0x023C, iwl9560_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x02F0, 0x0260, iwl9461_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x02F0, 0x0264, iwl9461_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x02F0, 0x02A0, iwl9462_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x02F0, 0x02A4, iwl9462_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x02F0, 0x1551, iwl9560_killer_s_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x02F0, 0x1552, iwl9560_killer_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x02F0, 0x2030, iwl9560_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x02F0, 0x2034, iwl9560_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x02F0, 0x4030, iwl9560_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x02F0, 0x4034, iwl9560_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x02F0, 0x40A4, iwl9462_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x02F0, 0x4234, iwl9560_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x02F0, 0x42A4, iwl9462_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x06F0, 0x0030, iwl9560_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x06F0, 0x0034, iwl9560_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x06F0, 0x0038, iwl9560_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x06F0, 0x003C, iwl9560_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x06F0, 0x0060, iwl9461_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x06F0, 0x0064, iwl9461_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x06F0, 0x00A0, iwl9462_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x06F0, 0x00A4, iwl9462_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x06F0, 0x0230, iwl9560_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x06F0, 0x0234, iwl9560_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x06F0, 0x0238, iwl9560_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x06F0, 0x023C, iwl9560_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x06F0, 0x0260, iwl9461_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x06F0, 0x0264, iwl9461_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x06F0, 0x02A0, iwl9462_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x06F0, 0x02A4, iwl9462_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x06F0, 0x1551, iwl9560_killer_s_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x06F0, 0x1552, iwl9560_killer_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x06F0, 0x2030, iwl9560_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x06F0, 0x2034, iwl9560_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x06F0, 0x4030, iwl9560_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x06F0, 0x4034, iwl9560_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x06F0, 0x40A4, iwl9462_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x06F0, 0x4234, iwl9560_2ac_cfg_soc)},
+	{IWL_PCI_DEVICE(0x06F0, 0x42A4, iwl9462_2ac_cfg_soc)},
 	{IWL_PCI_DEVICE(0x2526, 0x0010, iwl9260_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x2526, 0x0014, iwl9260_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x2526, 0x0018, iwl9260_2ac_cfg)},

From 56b657f7f9c07421a4f910b7e2b382184f1ddbc8 Mon Sep 17 00:00:00 2001
From: Sara Sharon <sara.sharon@intel.com>
Date: Mon, 30 Jul 2018 11:06:09 +0300
Subject: [PATCH 101/124] iwlwifi: fw: use helper to determine whether to dump
 paging

Logic is there twice, and we'll need a third place
soon for ini dumping. In addition move the dumping
to a function, also to enable reuse.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/fw/dbg.c | 57 +++++++++++----------
 drivers/net/wireless/intel/iwlwifi/fw/dbg.h |  8 +++
 2 files changed, 37 insertions(+), 28 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
index aebdf433b409..58a980070445 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
@@ -639,6 +639,32 @@ static int iwl_fw_fifo_len(struct iwl_fw_runtime *fwrt,
 	return fifo_len;
 }
 
+static void iwl_dump_paging(struct iwl_fw_runtime *fwrt,
+			    struct iwl_fw_error_dump_data **data)
+{
+	int i;
+
+	IWL_DEBUG_INFO(fwrt, "WRT paging dump\n");
+	for (i = 1; i < fwrt->num_of_paging_blk + 1; i++) {
+		struct iwl_fw_error_dump_paging *paging;
+		struct page *pages =
+			fwrt->fw_paging_db[i].fw_paging_block;
+		dma_addr_t addr = fwrt->fw_paging_db[i].fw_paging_phys;
+
+		(*data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_PAGING);
+		(*data)->len = cpu_to_le32(sizeof(*paging) +
+					     PAGING_BLOCK_SIZE);
+		paging =  (void *)(*data)->data;
+		paging->index = cpu_to_le32(i);
+		dma_sync_single_for_cpu(fwrt->trans->dev, addr,
+					PAGING_BLOCK_SIZE,
+					DMA_BIDIRECTIONAL);
+		memcpy(paging->data, page_address(pages),
+		       PAGING_BLOCK_SIZE);
+		(*data) = iwl_fw_error_next_data(*data);
+	}
+}
+
 static struct iwl_fw_error_dump_file *
 _iwl_fw_error_dump(struct iwl_fw_runtime *fwrt,
 		   struct iwl_fw_dump_ptrs *fw_error_dump)
@@ -707,10 +733,7 @@ _iwl_fw_error_dump(struct iwl_fw_runtime *fwrt,
 	}
 
 	/* Make room for fw's virtual image pages, if it exists */
-	if (iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_PAGING) &&
-	    !fwrt->trans->cfg->gen2 &&
-	    fwrt->fw->img[fwrt->cur_fw_img].paging_mem_size &&
-	    fwrt->fw_paging_db[0].fw_paging_block)
+	if (iwl_fw_dbg_is_paging_enabled(fwrt))
 		file_len += fwrt->num_of_paging_blk *
 			(sizeof(*dump_data) +
 			 sizeof(struct iwl_fw_error_dump_paging) +
@@ -860,30 +883,8 @@ _iwl_fw_error_dump(struct iwl_fw_runtime *fwrt,
 	}
 
 	/* Dump fw's virtual image */
-	if (iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_PAGING) &&
-	    !fwrt->trans->cfg->gen2 &&
-	    fwrt->fw->img[fwrt->cur_fw_img].paging_mem_size &&
-	    fwrt->fw_paging_db[0].fw_paging_block) {
-		IWL_DEBUG_INFO(fwrt, "WRT paging dump\n");
-		for (i = 1; i < fwrt->num_of_paging_blk + 1; i++) {
-			struct iwl_fw_error_dump_paging *paging;
-			struct page *pages =
-				fwrt->fw_paging_db[i].fw_paging_block;
-			dma_addr_t addr = fwrt->fw_paging_db[i].fw_paging_phys;
-
-			dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_PAGING);
-			dump_data->len = cpu_to_le32(sizeof(*paging) +
-						     PAGING_BLOCK_SIZE);
-			paging = (void *)dump_data->data;
-			paging->index = cpu_to_le32(i);
-			dma_sync_single_for_cpu(fwrt->trans->dev, addr,
-						PAGING_BLOCK_SIZE,
-						DMA_BIDIRECTIONAL);
-			memcpy(paging->data, page_address(pages),
-			       PAGING_BLOCK_SIZE);
-			dump_data = iwl_fw_error_next_data(dump_data);
-		}
-	}
+	if (iwl_fw_dbg_is_paging_enabled(fwrt))
+		iwl_dump_paging(fwrt, &dump_data);
 
 	if (prph_len) {
 		iwl_dump_prph(fwrt->trans, &dump_data,
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.h b/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
index 0d5169c4cf51..4a5fa05c7ac2 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
@@ -322,6 +322,14 @@ static inline bool iwl_fw_dbg_is_d3_debug_enabled(struct iwl_fw_runtime *fwrt)
 		iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_D3_DEBUG_DATA);
 }
 
+static inline bool iwl_fw_dbg_is_paging_enabled(struct iwl_fw_runtime *fwrt)
+{
+	return iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_PAGING) &&
+		!fwrt->trans->cfg->gen2 &&
+		fwrt->fw->img[fwrt->cur_fw_img].paging_mem_size &&
+		fwrt->fw_paging_db[0].fw_paging_block;
+}
+
 void iwl_fw_dbg_read_d3_debug_data(struct iwl_fw_runtime *fwrt);
 
 static inline void iwl_fw_flush_dump(struct iwl_fw_runtime *fwrt)

From 79f033f6f229e9e1975172f8e766d3549595e0bf Mon Sep 17 00:00:00 2001
From: Sara Sharon <sara.sharon@intel.com>
Date: Mon, 30 Jul 2018 11:59:16 +0300
Subject: [PATCH 102/124] iwlwifi: dbg: don't limit dump decisions to all or
 monitor

Currently opmode is limited to asking transport to either
dump all the dumps configured at startup, or monitor only.
Instead, pass to transport a bitmask, to allow flexibility.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/fw/dbg.c   |  7 +++--
 .../net/wireless/intel/iwlwifi/iwl-trans.h    |  7 ++---
 drivers/net/wireless/intel/iwlwifi/mvm/ops.c  |  1 -
 .../net/wireless/intel/iwlwifi/pcie/trans.c   | 31 +++++++++----------
 4 files changed, 22 insertions(+), 24 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
index 58a980070445..67e6a35f14c4 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
@@ -908,6 +908,7 @@ void iwl_fw_error_dump(struct iwl_fw_runtime *fwrt)
 	struct iwl_fw_error_dump_file *dump_file;
 	struct scatterlist *sg_dump_data;
 	u32 file_len;
+	u32 dump_mask = fwrt->fw->dbg.dump_mask;
 
 	IWL_DEBUG_INFO(fwrt, "WRT dump start\n");
 
@@ -927,8 +928,10 @@ void iwl_fw_error_dump(struct iwl_fw_runtime *fwrt)
 		goto out;
 	}
 
-	fw_error_dump->trans_ptr = iwl_trans_dump_data(fwrt->trans,
-						       fwrt->dump.monitor_only);
+	if (fwrt->dump.monitor_only)
+		dump_mask &= IWL_FW_ERROR_DUMP_FW_MONITOR;
+
+	fw_error_dump->trans_ptr = iwl_trans_dump_data(fwrt->trans, dump_mask);
 	file_len = le32_to_cpu(dump_file->file_len);
 	fw_error_dump->fwrt_len = file_len;
 	if (fw_error_dump->trans_ptr) {
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
index f384a98a021c..b0300e824815 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
@@ -602,7 +602,7 @@ struct iwl_trans_ops {
 	void (*resume)(struct iwl_trans *trans);
 
 	struct iwl_trans_dump_data *(*dump_data)(struct iwl_trans *trans,
-						 bool monitor_only);
+						 u32 dump_mask);
 };
 
 /**
@@ -776,7 +776,6 @@ struct iwl_trans {
 	const struct iwl_fw_dbg_dest_tlv_v1 *dbg_dest_tlv;
 	const struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
 	struct iwl_fw_dbg_trigger_tlv * const *dbg_trigger_tlv;
-	u32 dbg_dump_mask;
 	u8 dbg_n_dest_reg;
 	int num_blocks;
 	struct iwl_dram_data fw_mon[IWL_MAX_DEBUG_ALLOCATIONS];
@@ -896,11 +895,11 @@ static inline void iwl_trans_resume(struct iwl_trans *trans)
 }
 
 static inline struct iwl_trans_dump_data *
-iwl_trans_dump_data(struct iwl_trans *trans, bool monitor_only)
+iwl_trans_dump_data(struct iwl_trans *trans, u32 dump_mask)
 {
 	if (!trans->ops->dump_data)
 		return NULL;
-	return trans->ops->dump_data(trans, monitor_only);
+	return trans->ops->dump_data(trans, dump_mask);
 }
 
 static inline struct iwl_device_cmd *
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
index 2291661dd72d..0a5b35312b59 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
@@ -769,7 +769,6 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
 	memcpy(trans->dbg_conf_tlv, mvm->fw->dbg.conf_tlv,
 	       sizeof(trans->dbg_conf_tlv));
 	trans->dbg_trigger_tlv = mvm->fw->dbg.trigger_tlv;
-	trans->dbg_dump_mask = mvm->fw->dbg.dump_mask;
 
 	trans->iml = mvm->fw->iml;
 	trans->iml_len = mvm->fw->iml_len;
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
index 551ce439647b..16eed9b0f301 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
@@ -2990,7 +2990,7 @@ static int iwl_trans_get_fw_monitor_len(struct iwl_trans *trans, int *len)
 
 static struct iwl_trans_dump_data
 *iwl_trans_pcie_dump_data(struct iwl_trans *trans,
-			  bool monitor_only)
+			  u32 dump_mask)
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 	struct iwl_fw_error_dump_data *data;
@@ -3002,7 +3002,10 @@ static struct iwl_trans_dump_data
 	int i, ptr;
 	bool dump_rbs = test_bit(STATUS_FW_ERROR, &trans->status) &&
 			!trans->cfg->mq_rx_supported &&
-			trans->dbg_dump_mask & BIT(IWL_FW_ERROR_DUMP_RB);
+			dump_mask & BIT(IWL_FW_ERROR_DUMP_RB);
+
+	if (!dump_mask)
+		return NULL;
 
 	/* transport dump header */
 	len = sizeof(*dump_data);
@@ -3014,11 +3017,7 @@ static struct iwl_trans_dump_data
 	/* FW monitor */
 	monitor_len = iwl_trans_get_fw_monitor_len(trans, &len);
 
-	if (monitor_only) {
-		if (!(trans->dbg_dump_mask &
-		      BIT(IWL_FW_ERROR_DUMP_FW_MONITOR)))
-			return NULL;
-
+	if (dump_mask == BIT(IWL_FW_ERROR_DUMP_FW_MONITOR)) {
 		dump_data = vzalloc(len);
 		if (!dump_data)
 			return NULL;
@@ -3031,11 +3030,11 @@ static struct iwl_trans_dump_data
 	}
 
 	/* CSR registers */
-	if (trans->dbg_dump_mask & BIT(IWL_FW_ERROR_DUMP_CSR))
+	if (dump_mask & BIT(IWL_FW_ERROR_DUMP_CSR))
 		len += sizeof(*data) + IWL_CSR_TO_DUMP;
 
 	/* FH registers */
-	if (trans->dbg_dump_mask & BIT(IWL_FW_ERROR_DUMP_FH_REGS)) {
+	if (dump_mask & BIT(IWL_FW_ERROR_DUMP_FH_REGS)) {
 		if (trans->cfg->gen2)
 			len += sizeof(*data) +
 			       (FH_MEM_UPPER_BOUND_GEN2 -
@@ -3060,8 +3059,7 @@ static struct iwl_trans_dump_data
 	}
 
 	/* Paged memory for gen2 HW */
-	if (trans->cfg->gen2 &&
-	    trans->dbg_dump_mask & BIT(IWL_FW_ERROR_DUMP_PAGING))
+	if (trans->cfg->gen2 && dump_mask & BIT(IWL_FW_ERROR_DUMP_PAGING))
 		for (i = 0; i < trans_pcie->init_dram.paging_cnt; i++)
 			len += sizeof(*data) +
 			       sizeof(struct iwl_fw_error_dump_paging) +
@@ -3074,7 +3072,7 @@ static struct iwl_trans_dump_data
 	len = 0;
 	data = (void *)dump_data->data;
 
-	if (trans->dbg_dump_mask & BIT(IWL_FW_ERROR_DUMP_TXCMD)) {
+	if (dump_mask & BIT(IWL_FW_ERROR_DUMP_TXCMD)) {
 		u16 tfd_size = trans_pcie->tfd_size;
 
 		data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_TXCMD);
@@ -3108,16 +3106,15 @@ static struct iwl_trans_dump_data
 		data = iwl_fw_error_next_data(data);
 	}
 
-	if (trans->dbg_dump_mask & BIT(IWL_FW_ERROR_DUMP_CSR))
+	if (dump_mask & BIT(IWL_FW_ERROR_DUMP_CSR))
 		len += iwl_trans_pcie_dump_csr(trans, &data);
-	if (trans->dbg_dump_mask & BIT(IWL_FW_ERROR_DUMP_FH_REGS))
+	if (dump_mask & BIT(IWL_FW_ERROR_DUMP_FH_REGS))
 		len += iwl_trans_pcie_fh_regs_dump(trans, &data);
 	if (dump_rbs)
 		len += iwl_trans_pcie_dump_rbs(trans, &data, num_rbs);
 
 	/* Paged memory for gen2 HW */
-	if (trans->cfg->gen2 &&
-	    trans->dbg_dump_mask & BIT(IWL_FW_ERROR_DUMP_PAGING)) {
+	if (trans->cfg->gen2 && dump_mask & BIT(IWL_FW_ERROR_DUMP_PAGING)) {
 		for (i = 0; i < trans_pcie->init_dram.paging_cnt; i++) {
 			struct iwl_fw_error_dump_paging *paging;
 			dma_addr_t addr =
@@ -3137,7 +3134,7 @@ static struct iwl_trans_dump_data
 			len += sizeof(*data) + sizeof(*paging) + page_len;
 		}
 	}
-	if (trans->dbg_dump_mask & BIT(IWL_FW_ERROR_DUMP_FW_MONITOR))
+	if (dump_mask & BIT(IWL_FW_ERROR_DUMP_FW_MONITOR))
 		len += iwl_trans_pcie_dump_monitor(trans, &data, monitor_len);
 
 	dump_data->len = len;

From 32b258e9e55cffd5f6c4e27285a43a1cdf7385a4 Mon Sep 17 00:00:00 2001
From: Sara Sharon <sara.sharon@intel.com>
Date: Tue, 31 Jul 2018 09:54:26 +0300
Subject: [PATCH 103/124] iwlwifi: dbg: split fifos dump

Split the dump of RXF and TXF. This is in order to
enable code reuse for INI, which may decide to dump
only RXF and not TXF, and vice versa.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/fw/dbg.c | 52 +++++++++++++++------
 1 file changed, 39 insertions(+), 13 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
index 67e6a35f14c4..6243b503d0b0 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
@@ -225,17 +225,13 @@ static void iwl_fwrt_dump_txf(struct iwl_fw_runtime *fwrt,
 	*dump_data = iwl_fw_error_next_data(*dump_data);
 }
 
-static void iwl_fw_dump_fifos(struct iwl_fw_runtime *fwrt,
-			      struct iwl_fw_error_dump_data **dump_data)
+static void iwl_fw_dump_rxf(struct iwl_fw_runtime *fwrt,
+			    struct iwl_fw_error_dump_data **dump_data)
 {
-	struct iwl_fw_error_dump_fifo *fifo_hdr;
 	struct iwl_fwrt_shared_mem_cfg *cfg = &fwrt->smem_cfg;
-	u32 *fifo_data;
-	u32 fifo_len;
 	unsigned long flags;
-	int i, j;
 
-	IWL_DEBUG_INFO(fwrt, "WRT FIFO dump\n");
+	IWL_DEBUG_INFO(fwrt, "WRT RX FIFO dump\n");
 
 	if (!iwl_trans_grab_nic_access(fwrt->trans, &flags))
 		return;
@@ -254,6 +250,24 @@ static void iwl_fw_dump_fifos(struct iwl_fw_runtime *fwrt,
 					  LMAC2_PRPH_OFFSET, 2);
 	}
 
+	iwl_trans_release_nic_access(fwrt->trans, &flags);
+}
+
+static void iwl_fw_dump_txf(struct iwl_fw_runtime *fwrt,
+			    struct iwl_fw_error_dump_data **dump_data)
+{
+	struct iwl_fw_error_dump_fifo *fifo_hdr;
+	struct iwl_fwrt_shared_mem_cfg *cfg = &fwrt->smem_cfg;
+	u32 *fifo_data;
+	u32 fifo_len;
+	unsigned long flags;
+	int i, j;
+
+	IWL_DEBUG_INFO(fwrt, "WRT TX FIFO dump\n");
+
+	if (!iwl_trans_grab_nic_access(fwrt->trans, &flags))
+		return;
+
 	if (iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_TXF)) {
 		/* Pull TXF data from LMAC1 */
 		for (i = 0; i < fwrt->smem_cfg.num_txfifo_entries; i++) {
@@ -595,8 +609,8 @@ static void iwl_fw_dump_mem(struct iwl_fw_runtime *fwrt,
 	do {size_t item = item_len; len += (!!item) * const_len + item; } \
 	while (0)
 
-static int iwl_fw_fifo_len(struct iwl_fw_runtime *fwrt,
-			   struct iwl_fwrt_shared_mem_cfg *mem_cfg)
+static int iwl_fw_rxf_len(struct iwl_fw_runtime *fwrt,
+			  struct iwl_fwrt_shared_mem_cfg *mem_cfg)
 {
 	size_t hdr_len = sizeof(struct iwl_fw_error_dump_data) +
 			 sizeof(struct iwl_fw_error_dump_fifo);
@@ -604,7 +618,7 @@ static int iwl_fw_fifo_len(struct iwl_fw_runtime *fwrt,
 	int i;
 
 	if (!iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_RXF))
-		goto dump_txf;
+		return 0;
 
 	/* Count RXF2 size */
 	ADD_LEN(fifo_len, mem_cfg->rxfifo2_size, hdr_len);
@@ -613,7 +627,17 @@ static int iwl_fw_fifo_len(struct iwl_fw_runtime *fwrt,
 	for (i = 0; i < mem_cfg->num_lmacs; i++)
 		ADD_LEN(fifo_len, mem_cfg->lmac[i].rxfifo1_size, hdr_len);
 
-dump_txf:
+	return fifo_len;
+}
+
+static int iwl_fw_txf_len(struct iwl_fw_runtime *fwrt,
+			  struct iwl_fwrt_shared_mem_cfg *mem_cfg)
+{
+	size_t hdr_len = sizeof(struct iwl_fw_error_dump_data) +
+			 sizeof(struct iwl_fw_error_dump_fifo);
+	u32 fifo_len = 0;
+	int i;
+
 	if (!iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_TXF))
 		goto dump_internal_txf;
 
@@ -697,7 +721,8 @@ _iwl_fw_error_dump(struct iwl_fw_runtime *fwrt,
 
 	/* reading RXF/TXF sizes */
 	if (test_bit(STATUS_FW_ERROR, &fwrt->trans->status)) {
-		fifo_len = iwl_fw_fifo_len(fwrt, mem_cfg);
+		fifo_len = iwl_fw_rxf_len(fwrt, mem_cfg);
+		fifo_len += iwl_fw_txf_len(fwrt, mem_cfg);
 
 		/* Make room for PRPH registers */
 		if (!fwrt->trans->cfg->gen2 &&
@@ -817,7 +842,8 @@ _iwl_fw_error_dump(struct iwl_fw_runtime *fwrt,
 
 	/* We only dump the FIFOs if the FW is in error state */
 	if (fifo_len) {
-		iwl_fw_dump_fifos(fwrt, &dump_data);
+		iwl_fw_dump_rxf(fwrt, &dump_data);
+		iwl_fw_dump_txf(fwrt, &dump_data);
 		if (radio_len)
 			iwl_read_radio_regs(fwrt, &dump_data);
 	}

From 8ea20d95899c2bb2aa92193058a4bfef7c8a03b1 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Tue, 31 Jul 2018 15:34:20 +0300
Subject: [PATCH 104/124] iwlwifi: mvm: remove assignment of the reciprocal

The firmware stopped looking at this field long ago.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 .../net/wireless/intel/iwlwifi/fw/api/mac.h   | 27 +++++++------------
 .../net/wireless/intel/iwlwifi/mvm/mac-ctxt.c | 12 ---------
 2 files changed, 10 insertions(+), 29 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/mac.h b/drivers/net/wireless/intel/iwlwifi/fw/api/mac.h
index 1dd23f846fb9..d0b79fb461bf 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/api/mac.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/api/mac.h
@@ -151,9 +151,9 @@ enum iwl_tsf_id {
  * @beacon_time: beacon transmit time in system time
  * @beacon_tsf: beacon transmit time in TSF
  * @bi: beacon interval in TU
- * @bi_reciprocal: 2^32 / bi
+ * @reserved1: reserved
  * @dtim_interval: dtim transmit time in TU
- * @dtim_reciprocal: 2^32 / dtim_interval
+ * @reserved2: reserved
  * @mcast_qid: queue ID for multicast traffic.
  *	NOTE: obsolete from VER2 and on
  * @beacon_template: beacon template ID
@@ -162,9 +162,9 @@ struct iwl_mac_data_ap {
 	__le32 beacon_time;
 	__le64 beacon_tsf;
 	__le32 bi;
-	__le32 bi_reciprocal;
+	__le32 reserved1;
 	__le32 dtim_interval;
-	__le32 dtim_reciprocal;
+	__le32 reserved2;
 	__le32 mcast_qid;
 	__le32 beacon_template;
 } __packed; /* AP_MAC_DATA_API_S_VER_2 */
@@ -174,14 +174,14 @@ struct iwl_mac_data_ap {
  * @beacon_time: beacon transmit time in system time
  * @beacon_tsf: beacon transmit time in TSF
  * @bi: beacon interval in TU
- * @bi_reciprocal: 2^32 / bi
+ * @reserved: reserved
  * @beacon_template: beacon template ID
  */
 struct iwl_mac_data_ibss {
 	__le32 beacon_time;
 	__le64 beacon_tsf;
 	__le32 bi;
-	__le32 bi_reciprocal;
+	__le32 reserved;
 	__le32 beacon_template;
 } __packed; /* IBSS_MAC_DATA_API_S_VER_1 */
 
@@ -191,9 +191,9 @@ struct iwl_mac_data_ibss {
  * @dtim_time: DTIM arrival time in system time
  * @dtim_tsf: DTIM arrival time in TSF
  * @bi: beacon interval in TU, applicable only when associated
- * @bi_reciprocal: 2^32 / bi , applicable only when associated
+ * @reserved1: reserved
  * @dtim_interval: DTIM interval in TU, applicable only when associated
- * @dtim_reciprocal: 2^32 / dtim_interval , applicable only when associated
+ * @reserved2: reserved
  * @listen_interval: in beacon intervals, applicable only when associated
  * @assoc_id: unique ID assigned by the AP during association
  * @assoc_beacon_arrive_time: TSF of first beacon after association
@@ -203,9 +203,9 @@ struct iwl_mac_data_sta {
 	__le32 dtim_time;
 	__le64 dtim_tsf;
 	__le32 bi;
-	__le32 bi_reciprocal;
+	__le32 reserved1;
 	__le32 dtim_interval;
-	__le32 dtim_reciprocal;
+	__le32 reserved2;
 	__le32 listen_interval;
 	__le32 assoc_id;
 	__le32 assoc_beacon_arrive_time;
@@ -378,13 +378,6 @@ struct iwl_mac_ctx_cmd {
 	};
 } __packed; /* MAC_CONTEXT_CMD_API_S_VER_1 */
 
-static inline u32 iwl_mvm_reciprocal(u32 v)
-{
-	if (!v)
-		return 0;
-	return 0xFFFFFFFF / v;
-}
-
 #define IWL_NONQOS_SEQ_GET	0x1
 #define IWL_NONQOS_SEQ_SET	0x2
 struct iwl_nonqos_seq_query_cmd {
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c
index b9c45a40e251..3b93293d4559 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c
@@ -767,13 +767,8 @@ static int iwl_mvm_mac_ctxt_cmd_sta(struct iwl_mvm *mvm,
 	}
 
 	ctxt_sta->bi = cpu_to_le32(vif->bss_conf.beacon_int);
-	ctxt_sta->bi_reciprocal =
-		cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int));
 	ctxt_sta->dtim_interval = cpu_to_le32(vif->bss_conf.beacon_int *
 					      vif->bss_conf.dtim_period);
-	ctxt_sta->dtim_reciprocal =
-		cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int *
-					       vif->bss_conf.dtim_period));
 
 	ctxt_sta->listen_interval = cpu_to_le32(mvm->hw->conf.listen_interval);
 	ctxt_sta->assoc_id = cpu_to_le32(vif->bss_conf.aid);
@@ -832,8 +827,6 @@ static int iwl_mvm_mac_ctxt_cmd_ibss(struct iwl_mvm *mvm,
 
 	/* cmd.ibss.beacon_time/cmd.ibss.beacon_tsf are curently ignored */
 	cmd.ibss.bi = cpu_to_le32(vif->bss_conf.beacon_int);
-	cmd.ibss.bi_reciprocal =
-		cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int));
 
 	/* TODO: Assumes that the beacon id == mac context id */
 	cmd.ibss.beacon_template = cpu_to_le32(mvmvif->id);
@@ -1180,13 +1173,8 @@ static void iwl_mvm_mac_ctxt_cmd_fill_ap(struct iwl_mvm *mvm,
 	}
 
 	ctxt_ap->bi = cpu_to_le32(vif->bss_conf.beacon_int);
-	ctxt_ap->bi_reciprocal =
-		cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int));
 	ctxt_ap->dtim_interval = cpu_to_le32(vif->bss_conf.beacon_int *
 					     vif->bss_conf.dtim_period);
-	ctxt_ap->dtim_reciprocal =
-		cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int *
-					       vif->bss_conf.dtim_period));
 
 	if (!fw_has_api(&mvm->fw->ucode_capa,
 			IWL_UCODE_TLV_API_STA_TYPE))

From b1bbc1a636505ebdd6336ff781e417123226d4f7 Mon Sep 17 00:00:00 2001
From: Luca Coelho <luciano.coelho@intel.com>
Date: Sat, 4 Aug 2018 14:45:42 +0300
Subject: [PATCH 105/124] iwlwifi: fix cfg structs for 22000 with different RF
 modules

We have to choose different configuration and different firmwares
depending on the external RF module that is installed.  Since the
external module is not represented in the PCI IDs, we need to change
the configuration at runtime, after checking the RF ID of the module
installed.  We have a bit of a mess in the code that does this,
because it applies cfg's according to the RF ID only, ignoring the
integrated module that is in use.

Fix that for some devices by adding correct configurations for them
and not ignoring the integrated module's type when making the
decision.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 .../net/wireless/intel/iwlwifi/cfg/22000.c    |  1 -
 drivers/net/wireless/intel/iwlwifi/pcie/drv.c |  2 +-
 .../net/wireless/intel/iwlwifi/pcie/trans.c   | 22 +++++++++++++++++--
 3 files changed, 21 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/cfg/22000.c b/drivers/net/wireless/intel/iwlwifi/cfg/22000.c
index da5d5f9b2573..8b2339165bca 100644
--- a/drivers/net/wireless/intel/iwlwifi/cfg/22000.c
+++ b/drivers/net/wireless/intel/iwlwifi/cfg/22000.c
@@ -323,7 +323,6 @@ MODULE_FIRMWARE(IWL_22000_HR_MODULE_FIRMWARE(IWL_22000_UCODE_API_MAX));
 MODULE_FIRMWARE(IWL_22000_JF_MODULE_FIRMWARE(IWL_22000_UCODE_API_MAX));
 MODULE_FIRMWARE(IWL_22000_HR_A_F0_QNJ_MODULE_FIRMWARE(IWL_22000_UCODE_API_MAX));
 MODULE_FIRMWARE(IWL_22000_HR_B_F0_QNJ_MODULE_FIRMWARE(IWL_22000_UCODE_API_MAX));
-MODULE_FIRMWARE(IWL_22000_QU_B_HR_B_MODULE_FIRMWARE(IWL_22000_UCODE_API_MAX));
 MODULE_FIRMWARE(IWL_22000_HR_B_QNJ_MODULE_FIRMWARE(IWL_22000_UCODE_API_MAX));
 MODULE_FIRMWARE(IWL_22000_JF_B0_QNJ_MODULE_FIRMWARE(IWL_22000_UCODE_API_MAX));
 MODULE_FIRMWARE(IWL_22000_HR_A0_QNJ_MODULE_FIRMWARE(IWL_22000_UCODE_API_MAX));
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
index 8d4711590dfc..353581ccc01e 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
@@ -882,7 +882,7 @@ static const struct pci_device_id iwl_hw_card_ids[] = {
 	{IWL_PCI_DEVICE(0x34F0, 0x0040, iwl22000_2ax_cfg_hr)},
 	{IWL_PCI_DEVICE(0x34F0, 0x0070, iwl22000_2ax_cfg_hr)},
 	{IWL_PCI_DEVICE(0x34F0, 0x0078, iwl22000_2ax_cfg_hr)},
-	{IWL_PCI_DEVICE(0x34F0, 0x0310, iwl22000_2ac_cfg_jf)},
+	{IWL_PCI_DEVICE(0x34F0, 0x0310, iwl22000_2ax_cfg_hr)},
 	{IWL_PCI_DEVICE(0x40C0, 0x0000, iwl22560_2ax_cfg_su_cdb)},
 	{IWL_PCI_DEVICE(0x40C0, 0x0010, iwl22560_2ax_cfg_su_cdb)},
 	{IWL_PCI_DEVICE(0x40c0, 0x0090, iwl22560_2ax_cfg_su_cdb)},
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
index 16eed9b0f301..231ec8131ee8 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
@@ -3401,8 +3401,26 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev,
 #if IS_ENABLED(CONFIG_IWLMVM)
 	trans->hw_rf_id = iwl_read32(trans, CSR_HW_RF_ID);
 
-	if (CSR_HW_RF_ID_TYPE_CHIP_ID(trans->hw_rf_id) ==
-	    CSR_HW_RF_ID_TYPE_CHIP_ID(CSR_HW_RF_ID_TYPE_HR)) {
+	if (cfg == &iwl22000_2ax_cfg_hr) {
+		if (CSR_HW_RF_ID_TYPE_CHIP_ID(trans->hw_rf_id) ==
+		    CSR_HW_RF_ID_TYPE_CHIP_ID(CSR_HW_RF_ID_TYPE_HR)) {
+			trans->cfg = &iwl22000_2ax_cfg_hr;
+		} else if (CSR_HW_RF_ID_TYPE_CHIP_ID(trans->hw_rf_id) ==
+			   CSR_HW_RF_ID_TYPE_CHIP_ID(CSR_HW_RF_ID_TYPE_JF)) {
+			trans->cfg = &iwl22000_2ax_cfg_jf;
+		} else if (CSR_HW_RF_ID_TYPE_CHIP_ID(trans->hw_rf_id) ==
+			   CSR_HW_RF_ID_TYPE_CHIP_ID(CSR_HW_RF_ID_TYPE_HRCDB)) {
+			IWL_ERR(trans, "RF ID HRCDB is not supported\n");
+			ret = -EINVAL;
+			goto out_no_pci;
+		} else {
+			IWL_ERR(trans, "Unrecognized RF ID 0x%08x\n",
+				CSR_HW_RF_ID_TYPE_CHIP_ID(trans->hw_rf_id));
+			ret = -EINVAL;
+			goto out_no_pci;
+		}
+	} else if (CSR_HW_RF_ID_TYPE_CHIP_ID(trans->hw_rf_id) ==
+		   CSR_HW_RF_ID_TYPE_CHIP_ID(CSR_HW_RF_ID_TYPE_HR)) {
 		u32 hw_status;
 
 		hw_status = iwl_read_prph(trans, UMAG_GEN_HW_STATUS);

From 7125648074e8134b3f7df2f755156bedc1f54020 Mon Sep 17 00:00:00 2001
From: Lior Cohen <lior2.cohen@intel.com>
Date: Thu, 2 Aug 2018 11:48:18 +0300
Subject: [PATCH 106/124] iwlwifi: add fw dump upon RT ucode start failure

FW dump was missing in case the RT FW ucode
section failed to load. This failure happens when
the RT section of the FW file is corrupted.

Signed-off-by: Lior Cohen <lior2.cohen@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/fw/dbg.c | 8 ++++++++
 drivers/net/wireless/intel/iwlwifi/fw/dbg.h | 1 +
 drivers/net/wireless/intel/iwlwifi/mvm/fw.c | 2 ++
 3 files changed, 11 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
index 6243b503d0b0..efd4ac5bba73 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
@@ -998,6 +998,14 @@ const struct iwl_fw_dump_desc iwl_dump_desc_assert = {
 };
 IWL_EXPORT_SYMBOL(iwl_dump_desc_assert);
 
+void iwl_fw_assert_error_dump(struct iwl_fw_runtime *fwrt)
+{
+	IWL_INFO(fwrt, "error dump due to fw assert\n");
+	fwrt->dump.desc = &iwl_dump_desc_assert;
+	iwl_fw_error_dump(fwrt);
+}
+IWL_EXPORT_SYMBOL(iwl_fw_assert_error_dump);
+
 void iwl_fw_alive_error_dump(struct iwl_fw_runtime *fwrt)
 {
 	struct iwl_fw_dump_desc *iwl_dump_desc_no_alive =
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.h b/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
index 4a5fa05c7ac2..544b42f9fb19 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
@@ -378,6 +378,7 @@ static inline void iwl_fw_resume_timestamp(struct iwl_fw_runtime *fwrt) {}
 
 #endif /* CONFIG_IWLWIFI_DEBUGFS */
 
+void iwl_fw_assert_error_dump(struct iwl_fw_runtime *fwrt);
 void iwl_fw_alive_error_dump(struct iwl_fw_runtime *fwrt);
 void iwl_fw_dbg_collect_sync(struct iwl_fw_runtime *fwrt);
 #endif  /* __iwl_fw_dbg_h__ */
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
index dade206d5511..2cd07247e0a7 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
@@ -407,6 +407,7 @@ static int iwl_run_unified_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm)
 	ret = iwl_mvm_load_ucode_wait_alive(mvm, IWL_UCODE_REGULAR);
 	if (ret) {
 		IWL_ERR(mvm, "Failed to start RT ucode: %d\n", ret);
+		iwl_fw_assert_error_dump(&mvm->fwrt);
 		goto error;
 	}
 
@@ -1024,6 +1025,7 @@ int iwl_mvm_up(struct iwl_mvm *mvm)
 	ret = iwl_mvm_load_rt_fw(mvm);
 	if (ret) {
 		IWL_ERR(mvm, "Failed to start RT ucode: %d\n", ret);
+		iwl_fw_assert_error_dump(&mvm->fwrt);
 		goto error;
 	}
 

From d91d9b94492f956a39d86c2efa413076025392e7 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Wed, 8 Aug 2018 10:42:23 +0300
Subject: [PATCH 107/124] iwlwifi: mvm: add support for TWT capabilities

We need to check the TWT support of the peer and to
propagte the capability to the firmware.
The current implementation will enable TWT only if the TWT
support is advertised in the HE CAP IE and in the Extended
Capability IE.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 .../net/wireless/intel/iwlwifi/fw/api/mac.h   | 16 +++++++++----
 .../net/wireless/intel/iwlwifi/mvm/mac-ctxt.c | 24 ++++++++++++++++++-
 2 files changed, 35 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/mac.h b/drivers/net/wireless/intel/iwlwifi/fw/api/mac.h
index d0b79fb461bf..2c9e40eedef5 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/api/mac.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/api/mac.h
@@ -185,6 +185,14 @@ struct iwl_mac_data_ibss {
 	__le32 beacon_template;
 } __packed; /* IBSS_MAC_DATA_API_S_VER_1 */
 
+/**
+ * enum iwl_mac_data_policy - policy of the data path for this MAC
+ * @TWT_SUPPORTED: twt is supported
+ */
+enum iwl_mac_data_policy {
+	TWT_SUPPORTED	= BIT(0),
+};
+
 /**
  * struct iwl_mac_data_sta - configuration data for station MAC context
  * @is_assoc: 1 for associated state, 0 otherwise
@@ -193,7 +201,7 @@ struct iwl_mac_data_ibss {
  * @bi: beacon interval in TU, applicable only when associated
  * @reserved1: reserved
  * @dtim_interval: DTIM interval in TU, applicable only when associated
- * @reserved2: reserved
+ * @data_policy: see &enum iwl_mac_data_policy
  * @listen_interval: in beacon intervals, applicable only when associated
  * @assoc_id: unique ID assigned by the AP during association
  * @assoc_beacon_arrive_time: TSF of first beacon after association
@@ -205,11 +213,11 @@ struct iwl_mac_data_sta {
 	__le32 bi;
 	__le32 reserved1;
 	__le32 dtim_interval;
-	__le32 reserved2;
+	__le32 data_policy;
 	__le32 listen_interval;
 	__le32 assoc_id;
 	__le32 assoc_beacon_arrive_time;
-} __packed; /* STA_MAC_DATA_API_S_VER_1 */
+} __packed; /* STA_MAC_DATA_API_S_VER_2 */
 
 /**
  * struct iwl_mac_data_go - configuration data for P2P GO MAC context
@@ -233,7 +241,7 @@ struct iwl_mac_data_go {
 struct iwl_mac_data_p2p_sta {
 	struct iwl_mac_data_sta sta;
 	__le32 ctwin;
-} __packed; /* P2P_STA_MAC_DATA_API_S_VER_1 */
+} __packed; /* P2P_STA_MAC_DATA_API_S_VER_2 */
 
 /**
  * struct iwl_mac_data_pibss - Pseudo IBSS config data
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c
index 3b93293d4559..990ebf89f342 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c
@@ -777,8 +777,30 @@ static int iwl_mvm_mac_ctxt_cmd_sta(struct iwl_mvm *mvm,
 		cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST);
 
 	if (vif->bss_conf.assoc && vif->bss_conf.he_support &&
-	    !iwlwifi_mod_params.disable_11ax)
+	    !iwlwifi_mod_params.disable_11ax) {
+		struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+		u8 sta_id = mvmvif->ap_sta_id;
+
 		cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_11AX);
+		if (sta_id != IWL_MVM_INVALID_STA) {
+			struct ieee80211_sta *sta;
+
+			sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id],
+				lockdep_is_held(&mvm->mutex));
+
+			/*
+			 * TODO: we should check the ext cap IE but it is
+			 * unclear why the spec requires two bits (one in HE
+			 * cap IE, and one in the ext cap IE). In the meantime
+			 * rely on the HE cap IE only.
+			 */
+			if (sta && (sta->he_cap.he_cap_elem.mac_cap_info[0] &
+				    IEEE80211_HE_MAC_CAP0_TWT_RES))
+				ctxt_sta->data_policy |=
+					cpu_to_le32(TWT_SUPPORTED);
+		}
+	}
+
 
 	return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd);
 }

From bd2944665713e397409dcbde8f22aa6025eb3992 Mon Sep 17 00:00:00 2001
From: Sara Sharon <sara.sharon@intel.com>
Date: Wed, 13 Jun 2018 14:58:18 +0300
Subject: [PATCH 108/124] iwlwifi: fw: add FW API of new TLV infrastructure

Add the FW API of the new debug infrastructure. Next patches
will introduce the utilization of this infra.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 .../wireless/intel/iwlwifi/fw/api/dbg-tlv.h   | 399 ++++++++++++++++++
 1 file changed, 399 insertions(+)
 create mode 100644 drivers/net/wireless/intel/iwlwifi/fw/api/dbg-tlv.h

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/dbg-tlv.h b/drivers/net/wireless/intel/iwlwifi/fw/api/dbg-tlv.h
new file mode 100644
index 000000000000..82f3c9bbd9b1
--- /dev/null
+++ b/drivers/net/wireless/intel/iwlwifi/fw/api/dbg-tlv.h
@@ -0,0 +1,399 @@
+/******************************************************************************
+ *
+ * This file is provided under a dual BSD/GPLv2 license.  When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright (C) 2018 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called COPYING.
+ *
+ * Contact Information:
+ *  Intel Linux Wireless <linuxwifi@intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ * BSD LICENSE
+ *
+ * Copyright (C) 2018 Intel Corporation
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *  * Neither the name Intel Corporation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *****************************************************************************/
+#ifndef __iwl_fw_dbg_tlv_h__
+#define __iwl_fw_dbg_tlv_h__
+
+#include <linux/bitops.h>
+
+/*
+ * struct iwl_fw_ini_header: Common Header for all debug group TLV's structures
+ * @tlv_version: version info
+ * @apply_point: &enum iwl_fw_ini_apply_point
+ * @data: TLV data followed
+ **/
+struct iwl_fw_ini_header {
+	__le32 tlv_version;
+	__le32 apply_point;
+	u8 data[];
+} __packed; /* FW_INI_HEADER_TLV_S */
+
+/**
+ * struct iwl_fw_ini_allocation_tlv - (IWL_FW_INI_TLV_TYPE_BUFFER_ALLOCATION)
+ * buffer allocation TLV - for debug
+ *
+ * @iwl_fw_ini_header: header
+ * @allocation_id: &enum iwl_fw_ini_allocation_id - to bind allocation and hcmd
+ *	if needed (DBGC1/DBGC2/SDFX/...)
+ * @buffer_location: type of iwl_fw_ini_buffer_location
+ * @size: size in bytes
+ * @max_fragments: the maximum allowed fragmentation in the desired memory
+ *	allocation above
+ * @min_frag_size: the minimum allowed fragmentation size in bytes
+*/
+struct iwl_fw_ini_allocation_tlv {
+	struct iwl_fw_ini_header header;
+	__le32 allocation_id;
+	__le32 buffer_location;
+	__le32 size;
+	__le32 max_fragments;
+	__le32 min_frag_size;
+} __packed; /* FW_INI_BUFFER_ALLOCATION_TLV_S_VER_1 */
+
+/**
+ * struct iwl_fw_ini_hcmd (IWL_FW_INI_TLV_TYPE_HCMD)
+ * Generic Host command pass through TLV
+ *
+ * @id: the debug configuration command type for instance: 0xf6 / 0xf5 / DHC
+ * @group: the desired cmd group
+ * @padding: all zeros for dword alignment
+ * @data: all of the relevant command (0xf6/0xf5) to be sent
+*/
+struct iwl_fw_ini_hcmd {
+	u8 id;
+	u8 group;
+	__le16 padding;
+	u8 data[0];
+} __packed; /* FW_INI_HCMD_S */
+
+/**
+ * struct iwl_fw_ini_hcmd_tlv
+ * @header: header
+ * @hcmd: a variable length host-command to be sent to apply the configuration.
+ */
+struct iwl_fw_ini_hcmd_tlv {
+	struct iwl_fw_ini_header header;
+	struct iwl_fw_ini_hcmd hcmd;
+} __packed; /* FW_INI_HCMD_TLV_S_VER_1 */
+
+/*
+ * struct iwl_fw_ini_debug_flow_tlv (IWL_FW_INI_TLV_TYPE_DEBUG_FLOW)
+ *
+ * @header: header
+ * @debug_flow_cfg: &enum iwl_fw_ini_debug_flow
+ */
+struct iwl_fw_ini_debug_flow_tlv {
+	struct iwl_fw_ini_header header;
+	__le32 debug_flow_cfg;
+} __packed; /* FW_INI_DEBUG_FLOW_TLV_S_VER_1 */
+
+#define IWL_FW_INI_MAX_REGION_ID	20
+#define IWL_FW_INI_MAX_NAME		32
+/**
+ * struct iwl_fw_ini_region_cfg
+ * @region_id: ID of this dump configuration
+ * @region_type: &enum iwl_fw_ini_region_type
+ * @num_regions: amount of regions in the address array.
+ * @allocation_id: For DRAM type field substitutes for allocation_id.
+ * @name_len: name length
+ * @name: file name to use for this region
+ * @size: size of the data, in bytes.(unused for IWL_FW_INI_REGION_DRAM_BUFFER)
+ * @start_addr: array of addresses. (unused for IWL_FW_INI_REGION_DRAM_BUFFER)
+ */
+struct iwl_fw_ini_region_cfg {
+	__le32 region_id;
+	__le32 region_type;
+	__le32 name_len;
+	u8 name[IWL_FW_INI_MAX_NAME];
+	union {
+		__le32 num_regions;
+		__le32 allocation_id;
+	};
+	__le32 size;
+	__le32 start_addr[];
+} __packed; /* FW_INI_REGION_CONFIG_S */
+
+/**
+ * struct iwl_fw_ini_region_tlv - (IWL_FW_INI_TLV_TYPE_REGION_CFG)
+ * DUMP sections define IDs and triggers that use those IDs TLV
+ * @header: header
+ * @num_regions: how many different region section and IDs are coming next
+ * @iwl_fw_ini_dump dump_config: list of dump configurations
+ */
+struct iwl_fw_ini_region_tlv {
+	struct iwl_fw_ini_header header;
+	__le32 num_regions;
+	struct iwl_fw_ini_region_cfg region_config[];
+} __packed; /* FW_INI_REGION_CFG_S */
+
+/**
+ * struct iwl_fw_ini_trigger - (IWL_FW_INI_TLV_TYPE_DUMP_CFG)
+ * Region sections define IDs and triggers that use those IDs TLV
+ *
+ * @trigger_id: enum &iwl_fw_ini_tigger_id
+ * @ignore_default: override FW TLV with binary TLV
+ * @dump_delay: delay from trigger fire to dump, in usec
+ * @occurrences: max amount of times to be fired
+ * @ignore_consec: ignore consecutive triggers, in usec
+ * @force_restart: force FW restart
+ * @trigger_data: generic data to be utilized per trigger
+ * @num_regions: number of dump regions defined for this trigger
+ * @data: region IDs
+ */
+struct iwl_fw_ini_trigger {
+	__le32 trigger_id;
+	__le32 ignore_default;
+	__le32 dump_delay;
+	__le32 occurrences;
+	__le32 ignore_consec;
+	__le32 force_restart;
+	__le32 trigger_data;
+	__le32 num_regions;
+	__le32 data[];
+} __packed; /* FW_INI_TRIGGER_CONFIG_S */
+
+/**
+ * struct iwl_fw_ini_trigger_tlv - (IWL_FW_INI_TLV_TYPE_TRIGGERS_CFG)
+ * DUMP sections define IDs and triggers that use those IDs TLV
+ *
+ * @header: header
+ * @num_triggers: how many different triggers section and IDs are coming next
+ * @trigger_config: list of trigger configurations
+ */
+struct iwl_fw_ini_trigger_tlv {
+	struct iwl_fw_ini_header header;
+	__le32 num_triggers;
+	struct iwl_fw_ini_trigger trigger_config[];
+} __packed; /* FW_INI_TRIGGER_CFG_S */
+
+/**
+ * enum iwl_fw_ini_trigger_id
+ * @IWL_FW_TRIGGER_ID_FW_ASSERT: FW assert
+ * @IWL_FW_TRIGGER_ID_FW_TFD_Q_HANG: TFD queue hang
+ * @IWL_FW_TRIGGER_ID_FW_HW_ERROR: HW assert
+ * @IWL_FW_TRIGGER_ID_FW_TRIGGER_ERROR: FW error notification
+ * @IWL_FW_TRIGGER_ID_FW_TRIGGER_WARNING: FW warning notification
+ * @IWL_FW_TRIGGER_ID_FW_TRIGGER_INFO: FW info notification
+ * @IWL_FW_TRIGGER_ID_FW_TRIGGER_DEBUG: FW debug notification
+ * @IWL_FW_TRIGGER_ID_USER_TRIGGER: User trigger
+ * @IWL_FW_TRIGGER_ID_HOST_PEER_CLIENT_INACTIVITY: peer inactivity
+ * @FW_DEBUG_TLV_TRIGGER_ID_HOST_DID_INITIATED_EVENT: undefined
+ * @IWL_FW_TRIGGER_ID_HOST_TX_LATENCY_THRESHOLD_CROSSED: TX latency
+ *	threshold was crossed
+ * @IWL_FW_TRIGGER_ID_HOST_TX_RESPONSE_STATUS_FAILED: TX failed
+ * @IWL_FW_TRIGGER_ID_HOST_OS_REQ_DEAUTH_PEER: Deauth initiated by host
+ * @IWL_FW_TRIGGER_ID_HOST_STOP_GO_REQUEST: stop GO request
+ * @IWL_FW_TRIGGER_ID_HOST_START_GO_REQUEST: start GO request
+ * @IWL_FW_TRIGGER_ID_HOST_JOIN_GROUP_REQUEST: join P2P group request
+ * @IWL_FW_TRIGGER_ID_HOST_SCAN_START: scan started event
+ * @IWL_FW_TRIGGER_ID_HOST_SCAN_SUBMITTED: undefined
+ * @IWL_FW_TRIGGER_ID_HOST_SCAN_PARAMS: undefined
+ * @IWL_FW_TRIGGER_ID_HOST_CHECK_FOR_HANG: undefined
+ * @IWL_FW_TRIGGER_ID_HOST_BAR_RECEIVED: BAR frame was received
+ * @IWL_FW_TRIGGER_ID_HOST_AGG_TX_RESPONSE_STATUS_FAILED: agg TX failed
+ * @IWL_FW_TRIGGER_ID_HOST_EAPOL_TX_RESPONSE_FAILED: EAPOL TX failed
+ * @IWL_FW_TRIGGER_ID_HOST_FAKE_TX_RESPONSE_SUSPECTED: suspicious TX response
+ * @IWL_FW_TRIGGER_ID_HOST_AUTH_REQ_FROM_ASSOC_CLIENT: received suspicious auth
+ * @IWL_FW_TRIGGER_ID_HOST_ROAM_COMPLETE: roaming was completed
+ * @IWL_FW_TRIGGER_ID_HOST_AUTH_ASSOC_FAST_FAILED: fast assoc failed
+ * @IWL_FW_TRIGGER_ID_HOST_D3_START: D3 start
+ * @IWL_FW_TRIGGER_ID_HOST_D3_END: D3 end
+ * @IWL_FW_TRIGGER_ID_HOST_BSS_MISSED_BEACONS: missed beacon events
+ * @IWL_FW_TRIGGER_ID_HOST_P2P_CLIENT_MISSED_BEACONS: P2P missed beacon events
+ * @IWL_FW_TRIGGER_ID_HOST_PEER_CLIENT_TX_FAILURES:  undefined
+ * @IWL_FW_TRIGGER_ID_HOST_TX_WFD_ACTION_FRAME_FAILED: undefined
+ * @IWL_FW_TRIGGER_ID_HOST_AUTH_ASSOC_FAILED: authentication / association
+ *	failed
+ * @IWL_FW_TRIGGER_ID_HOST_SCAN_COMPLETE: scan complete event
+ * @IWL_FW_TRIGGER_ID_HOST_SCAN_ABORT: scan abort complete
+ * @IWL_FW_TRIGGER_ID_HOST_NIC_ALIVE: nic alive message was received
+ * @IWL_FW_TRIGGER_ID_HOST_CHANNEL_SWITCH_COMPLETE: CSA was completed
+ * @IWL_FW_TRIGGER_ID_NUM: number of trigger IDs
+ */
+enum iwl_fw_ini_trigger_id {
+	/* Errors triggers */
+	IWL_FW_TRIGGER_ID_FW_ASSERT				= 1,
+	IWL_FW_TRIGGER_ID_FW_TFD_Q_HANG				= 2,
+	IWL_FW_TRIGGER_ID_FW_HW_ERROR				= 3,
+	/* Generic triggers */
+	IWL_FW_TRIGGER_ID_FW_TRIGGER_ERROR			= 4,
+	IWL_FW_TRIGGER_ID_FW_TRIGGER_WARNING			= 5,
+	IWL_FW_TRIGGER_ID_FW_TRIGGER_INFO			= 6,
+	IWL_FW_TRIGGER_ID_FW_TRIGGER_DEBUG			= 7,
+	/* User Trigger */
+	IWL_FW_TRIGGER_ID_USER_TRIGGER				= 8,
+	/* Host triggers */
+	IWL_FW_TRIGGER_ID_HOST_PEER_CLIENT_INACTIVITY		= 9,
+	IWL_FW_TRIGGER_ID_HOST_DID_INITIATED_EVENT		= 10,
+	IWL_FW_TRIGGER_ID_HOST_TX_LATENCY_THRESHOLD_CROSSED	= 11,
+	IWL_FW_TRIGGER_ID_HOST_TX_RESPONSE_STATUS_FAILED	= 12,
+	IWL_FW_TRIGGER_ID_HOST_OS_REQ_DEAUTH_PEER		= 13,
+	IWL_FW_TRIGGER_ID_HOST_STOP_GO_REQUEST			= 14,
+	IWL_FW_TRIGGER_ID_HOST_START_GO_REQUEST			= 15,
+	IWL_FW_TRIGGER_ID_HOST_JOIN_GROUP_REQUEST		= 16,
+	IWL_FW_TRIGGER_ID_HOST_SCAN_START			= 17,
+	IWL_FW_TRIGGER_ID_HOST_SCAN_SUBITTED			= 18,
+	IWL_FW_TRIGGER_ID_HOST_SCAN_PARAMS			= 19,
+	IWL_FW_TRIGGER_ID_HOST_CHECK_FOR_HANG			= 20,
+	IWL_FW_TRIGGER_ID_HOST_BAR_RECEIVED			= 21,
+	IWL_FW_TRIGGER_ID_HOST_AGG_TX_RESPONSE_STATUS_FAILED	= 22,
+	IWL_FW_TRIGGER_ID_HOST_EAPOL_TX_RESPONSE_FAILED		= 23,
+	IWL_FW_TRIGGER_ID_HOST_FAKE_TX_RESPONSE_SUSPECTED	= 24,
+	IWL_FW_TRIGGER_ID_HOST_AUTH_REQ_FROM_ASSOC_CLIENT	= 25,
+	IWL_FW_TRIGGER_ID_HOST_ROAM_COMPLETE			= 26,
+	IWL_FW_TRIGGER_ID_HOST_AUTH_ASSOC_FAST_FAILED		= 27,
+	IWL_FW_TRIGGER_ID_HOST_D3_START				= 28,
+	IWL_FW_TRIGGER_ID_HOST_D3_END				= 29,
+	IWL_FW_TRIGGER_ID_HOST_BSS_MISSED_BEACONS		= 30,
+	IWL_FW_TRIGGER_ID_HOST_P2P_CLIENT_MISSED_BEACONS	= 31,
+	IWL_FW_TRIGGER_ID_HOST_PEER_CLIENT_TX_FAILURES		= 32,
+	IWL_FW_TRIGGER_ID_HOST_TX_WFD_ACTION_FRAME_FAILED	= 33,
+	IWL_FW_TRIGGER_ID_HOST_AUTH_ASSOC_FAILED		= 34,
+	IWL_FW_TRIGGER_ID_HOST_SCAN_COMPLETE			= 35,
+	IWL_FW_TRIGGER_ID_HOST_SCAN_ABORT			= 36,
+	IWL_FW_TRIGGER_ID_HOST_NIC_ALIVE			= 37,
+	IWL_FW_TRIGGER_ID_HOST_CHANNEL_SWITCH_COMPLETE          = 38,
+	IWL_FW_TRIGGER_ID_NUM,
+}; /* FW_INI_TRIGGER_ID_E_VER_1 */
+
+/**
+ * enum iwl_fw_ini_apply_point
+ * @IWL_FW_INI_APPLY_INVALID: invalid
+ * @IWL_FW_INI_APPLY_EARLY: pre loading FW
+ * @IWL_FW_INI_APPLY_AFTER_ALIVE: first cmd from host after alive
+ * @IWL_FW_INI_APPLY_POST_INIT: last cmd in initialization sequence
+ * @IWL_FW_INI_APPLY_MISSED_BEACONS: missed beacons notification
+ * @IWL_FW_INI_APPLY_SCAN_COMPLETE: scan completed
+ * @IWL_FW_INI_APPLY_NUM: number of apply points
+*/
+enum iwl_fw_ini_apply_point {
+	IWL_FW_INI_APPLY_INVALID,
+	IWL_FW_INI_APPLY_EARLY,
+	IWL_FW_INI_APPLY_AFTER_ALIVE,
+	IWL_FW_INI_APPLY_POST_INIT,
+	IWL_FW_INI_APPLY_MISSED_BEACONS,
+	IWL_FW_INI_APPLY_SCAN_COMPLETE,
+	IWL_FW_INI_APPLY_NUM,
+}; /* FW_INI_APPLY_POINT_E_VER_1 */
+
+/**
+ * enum iwl_fw_ini_allocation_id
+ * @IWL_FW_INI_ALLOCATION_INVALID: invalid
+ * @IWL_FW_INI_ALLOCATION_ID_DBGC1: allocation meant for DBGC1 configuration
+ * @IWL_FW_INI_ALLOCATION_ID_DBGC2: allocation meant for DBGC2 configuration
+ * @IWL_FW_INI_ALLOCATION_ID_DBGC3: allocation meant for DBGC3 configuration
+ * @IWL_FW_INI_ALLOCATION_ID_SDFX: for SDFX module
+ * @IWL_FW_INI_ALLOCATION_ID_FW_DUMP: used for crash and runtime dumps
+ * @IWL_FW_INI_ALLOCATION_ID_USER_DEFINED: for future user scenarios
+*/
+enum iwl_fw_ini_allocation_id {
+	IWL_FW_INI_ALLOCATION_INVALID,
+	IWL_FW_INI_ALLOCATION_ID_DBGC1,
+	IWL_FW_INI_ALLOCATION_ID_DBGC2,
+	IWL_FW_INI_ALLOCATION_ID_DBGC3,
+	IWL_FW_INI_ALLOCATION_ID_SDFX,
+	IWL_FW_INI_ALLOCATION_ID_FW_DUMP,
+	IWL_FW_INI_ALLOCATION_ID_USER_DEFINED,
+}; /* FW_INI_ALLOCATION_ID_E_VER_1 */
+
+/**
+ * enum iwl_fw_ini_buffer_location
+ * @IWL_FW_INI_LOCATION_INVALID: invalid
+ * @IWL_FW_INI_LOCATION_SRAM_PATH: SRAM location
+ * @IWL_FW_INI_LOCATION_DRAM_PATH: DRAM location
+ */
+enum iwl_fw_ini_buffer_location {
+	IWL_FW_INI_LOCATION_SRAM_INVALID,
+	IWL_FW_INI_LOCATION_SRAM_PATH,
+	IWL_FW_INI_LOCATION_DRAM_PATH,
+}; /* FW_INI_BUFFER_LOCATION_E_VER_1 */
+
+/**
+ * enum iwl_fw_ini_debug_flow
+ * @IWL_FW_INI_DEBUG_INVALID: invalid
+ * @IWL_FW_INI_DEBUG_DBTR_FLOW: undefined
+ * @IWL_FW_INI_DEBUG_TB2DTF_FLOW: undefined
+ */
+enum iwl_fw_ini_debug_flow {
+	IWL_FW_INI_DEBUG_INVALID,
+	IWL_FW_INI_DEBUG_DBTR_FLOW,
+	IWL_FW_INI_DEBUG_TB2DTF_FLOW,
+}; /* FW_INI_DEBUG_FLOW_E_VER_1 */
+
+/**
+ * enum iwl_fw_ini_region_type
+ * @IWL_FW_INI_REGION_INVALID: invalid
+ * @IWL_FW_INI_REGION_DEVICE_MEMORY: device internal memory
+ * @IWL_FW_INI_REGION_PERIPHERY_MAC: periphery registers of MAC
+ * @IWL_FW_INI_REGION_PERIPHERY_PHY: periphery registers of PHY
+ * @IWL_FW_INI_REGION_PERIPHERY_AUX: periphery registers of AUX
+ * @IWL_FW_INI_REGION_DRAM_BUFFER: DRAM buffer
+ * @IWL_FW_INI_REGION_DRAM_IMR: IMR memory
+ * @IWL_FW_INI_REGION_INTERNAL_BUFFER: undefined
+ * @IWL_FW_INI_REGION_TXF: TX fifos
+ * @IWL_FW_INI_REGION_RXF: RX fifo
+ * @IWL_FW_INI_REGION_PAGING: paging memory
+ * @IWL_FW_INI_REGION_CSR: CSR registers
+ * @IWL_FW_INI_REGION_NUM: number of region types
+ */
+enum iwl_fw_ini_region_type {
+	IWL_FW_INI_REGION_INVALID,
+	IWL_FW_INI_REGION_DEVICE_MEMORY,
+	IWL_FW_INI_REGION_PERIPHERY_MAC,
+	IWL_FW_INI_REGION_PERIPHERY_PHY,
+	IWL_FW_INI_REGION_PERIPHERY_AUX,
+	IWL_FW_INI_REGION_DRAM_BUFFER,
+	IWL_FW_INI_REGION_DRAM_IMR,
+	IWL_FW_INI_REGION_INTERNAL_BUFFER,
+	IWL_FW_INI_REGION_TXF,
+	IWL_FW_INI_REGION_RXF,
+	IWL_FW_INI_REGION_PAGING,
+	IWL_FW_INI_REGION_CSR,
+	IWL_FW_INI_REGION_NUM
+}; /* FW_INI_REGION_TYPE_E_VER_1*/
+
+#endif

From f14cda6f3b31347d1d814839d7e671dea749f1b0 Mon Sep 17 00:00:00 2001
From: Sara Sharon <sara.sharon@intel.com>
Date: Thu, 17 May 2018 10:14:30 +0300
Subject: [PATCH 109/124] iwlwifi: trans: parse and store debug ini TLVs

The new debug ini TLVs can be either packed into firmware
binary or written in external file. Support loading them
from both. Store the data per apply point. Apply point is
a point during driver runtime, where the TLV becomes active.
For example, a trigger of hardware error may be configured
to collect a subset of data pre-alive, as a opposed to HW
error that occurs after alive.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/Makefile   |   1 +
 drivers/net/wireless/intel/iwlwifi/fw/file.h  |   7 +
 .../net/wireless/intel/iwlwifi/iwl-dbg-tlv.c  | 154 ++++++++++++++++++
 .../net/wireless/intel/iwlwifi/iwl-dbg-tlv.h  |  84 ++++++++++
 drivers/net/wireless/intel/iwlwifi/iwl-drv.c  |  17 ++
 .../wireless/intel/iwlwifi/iwl-modparams.h    |   2 +
 .../net/wireless/intel/iwlwifi/iwl-trans.h    |   4 +
 7 files changed, 269 insertions(+)
 create mode 100644 drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
 create mode 100644 drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.h

diff --git a/drivers/net/wireless/intel/iwlwifi/Makefile b/drivers/net/wireless/intel/iwlwifi/Makefile
index 04e376cc898c..ff41987a7e35 100644
--- a/drivers/net/wireless/intel/iwlwifi/Makefile
+++ b/drivers/net/wireless/intel/iwlwifi/Makefile
@@ -11,6 +11,7 @@ iwlwifi-objs		+= pcie/ctxt-info.o pcie/ctxt-info-gen3.o
 iwlwifi-objs		+= pcie/trans-gen2.o pcie/tx-gen2.o
 iwlwifi-$(CONFIG_IWLDVM) += cfg/1000.o cfg/2000.o cfg/5000.o cfg/6000.o
 iwlwifi-$(CONFIG_IWLMVM) += cfg/7000.o cfg/8000.o cfg/9000.o cfg/22000.o
+iwlwifi-objs		+= iwl-dbg-tlv.o
 iwlwifi-objs		+= iwl-trans.o
 iwlwifi-objs		+= fw/notif-wait.o
 iwlwifi-$(CONFIG_IWLMVM) += fw/paging.o fw/smem.o fw/init.o fw/dbg.o
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/file.h b/drivers/net/wireless/intel/iwlwifi/fw/file.h
index 6005a41c53d1..81f557c0b58d 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/file.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/file.h
@@ -91,6 +91,8 @@ struct iwl_ucode_header {
 	} u;
 };
 
+#define IWL_UCODE_INI_TLV_GROUP	BIT(24)
+
 /*
  * new TLV uCode file layout
  *
@@ -141,6 +143,11 @@ enum iwl_ucode_tlv_type {
 	IWL_UCODE_TLV_FW_GSCAN_CAPA	= 50,
 	IWL_UCODE_TLV_FW_MEM_SEG	= 51,
 	IWL_UCODE_TLV_IML		= 52,
+	IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION	= IWL_UCODE_INI_TLV_GROUP | 0x1,
+	IWL_UCODE_TLV_TYPE_HCMD			= IWL_UCODE_INI_TLV_GROUP | 0x2,
+	IWL_UCODE_TLV_TYPE_REGIONS		= IWL_UCODE_INI_TLV_GROUP | 0x3,
+	IWL_UCODE_TLV_TYPE_TRIGGERS		= IWL_UCODE_INI_TLV_GROUP | 0x4,
+	IWL_UCODE_TLV_TYPE_DEBUG_FLOW		= IWL_UCODE_INI_TLV_GROUP | 0x5,
 
 	/* TLVs 0x1000-0x2000 are for internal driver usage */
 	IWL_UCODE_TLV_FW_DBG_DUMP_LST	= 0x1000,
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
new file mode 100644
index 000000000000..acefd7d5d099
--- /dev/null
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
@@ -0,0 +1,154 @@
+/******************************************************************************
+ *
+ * This file is provided under a dual BSD/GPLv2 license.  When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright (C) 2018 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called COPYING.
+ *
+ * Contact Information:
+ *  Intel Linux Wireless <linuxwifi@intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ * BSD LICENSE
+ *
+ * Copyright (C) 2018 Intel Corporation
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *  * Neither the name Intel Corporation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *****************************************************************************/
+
+#include <linux/firmware.h>
+#include "iwl-trans.h"
+#include "iwl-dbg-tlv.h"
+
+void iwl_fw_dbg_copy_tlv(struct iwl_trans *trans, struct iwl_ucode_tlv *tlv)
+{
+	struct iwl_apply_point_data *data;
+	struct iwl_fw_ini_header *header = (void *)&tlv->data[0];
+	u32 apply_point = le32_to_cpu(header->apply_point);
+
+	int copy_size = le32_to_cpu(tlv->length) + sizeof(*tlv);
+
+	if (WARN_ONCE(apply_point >= IWL_FW_INI_APPLY_NUM,
+		      "Invalid apply point id %d\n", apply_point))
+		return;
+
+	data = &trans->apply_points[apply_point];
+
+	/*
+	 * Make sure we still have room to copy this TLV. Offset points to the
+	 * location the last copy ended.
+	 */
+	if (WARN_ONCE(data->offset + copy_size > data->size,
+		      "Not enough memory for apply point %d\n",
+		      apply_point))
+		return;
+
+	memcpy(data->data + data->offset, (void *)tlv, copy_size);
+	data->offset += copy_size;
+}
+
+void iwl_alloc_dbg_tlv(struct iwl_trans *trans, size_t len, const u8 *data)
+{
+	struct iwl_ucode_tlv *tlv;
+	u32 size[IWL_FW_INI_APPLY_NUM] = {0};
+	int i;
+
+	while (len >= sizeof(*tlv)) {
+		u32 tlv_len, tlv_type, apply;
+		struct iwl_fw_ini_header *hdr;
+
+		len -= sizeof(*tlv);
+		tlv = (void *)data;
+
+		tlv_len = le32_to_cpu(tlv->length);
+		tlv_type = le32_to_cpu(tlv->type);
+
+		if (len < tlv_len)
+			return;
+
+		len -= ALIGN(tlv_len, 4);
+		data += sizeof(*tlv) + ALIGN(tlv_len, 4);
+
+		if (!(tlv_type & IWL_UCODE_INI_TLV_GROUP))
+			continue;
+
+		hdr = (void *)&tlv->data[0];
+		apply = le32_to_cpu(hdr->apply_point);
+
+		if (WARN_ON(apply >= IWL_FW_INI_APPLY_NUM))
+			continue;
+
+		size[apply] += sizeof(*tlv) + tlv_len;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(size); i++) {
+		void *mem;
+
+		if (!size[i])
+			continue;
+
+		mem = kzalloc(size[i], GFP_KERNEL);
+
+		if (!mem) {
+			IWL_ERR(trans, "No memory for apply point %d\n", i);
+			return;
+		}
+
+		trans->apply_points[i].data = mem;
+		trans->apply_points[i].size = size[i];
+	}
+}
+
+void iwl_fw_dbg_free(struct iwl_trans *trans)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(trans->apply_points); i++) {
+		kfree(trans->apply_points[i].data);
+		trans->apply_points[i].size = 0;
+		trans->apply_points[i].offset = 0;
+	}
+}
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.h b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.h
new file mode 100644
index 000000000000..a368017af089
--- /dev/null
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.h
@@ -0,0 +1,84 @@
+/******************************************************************************
+ *
+ * This file is provided under a dual BSD/GPLv2 license.  When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright (C) 2018 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called COPYING.
+ *
+ * Contact Information:
+ *  Intel Linux Wireless <linuxwifi@intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ * BSD LICENSE
+ *
+ * Copyright (C) 2018 Intel Corporation
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *  * Neither the name Intel Corporation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *****************************************************************************/
+#ifndef __iwl_dbg_tlv_h__
+#define __iwl_dbg_tlv_h__
+
+#include <linux/device.h>
+#include <linux/types.h>
+
+/**
+ * struct iwl_apply_point_data
+ * @data: start address of this apply point data
+ * @size total size of the data
+ * @offset: current offset of the copied data
+ */
+struct iwl_apply_point_data {
+	void *data;
+	int size;
+	int offset;
+};
+
+struct iwl_trans;
+void iwl_fw_dbg_free(struct iwl_trans *trans);
+void iwl_fw_dbg_copy_tlv(struct iwl_trans *trans, struct iwl_ucode_tlv *tlv);
+void iwl_alloc_dbg_tlv(struct iwl_trans *trans, size_t len, const u8 *data);
+
+#endif /* __iwl_dbg_tlv_h__*/
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
index ba41d23b4211..a986e5795831 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
@@ -72,6 +72,7 @@
 #include "iwl-op-mode.h"
 #include "iwl-agn-hw.h"
 #include "fw/img.h"
+#include "iwl-dbg-tlv.h"
 #include "iwl-config.h"
 #include "iwl-modparams.h"
 
@@ -645,6 +646,9 @@ static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
 
 	len -= sizeof(*ucode);
 
+	if (iwlwifi_mod_params.enable_ini)
+		iwl_alloc_dbg_tlv(drv->trans, len, data);
+
 	while (len >= sizeof(*tlv)) {
 		len -= sizeof(*tlv);
 		tlv = (void *)data;
@@ -1086,6 +1090,13 @@ static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
 				return -ENOMEM;
 			break;
 			}
+		case IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION:
+		case IWL_UCODE_TLV_TYPE_HCMD:
+		case IWL_UCODE_TLV_TYPE_REGIONS:
+		case IWL_UCODE_TLV_TYPE_TRIGGERS:
+		case IWL_UCODE_TLV_TYPE_DEBUG_FLOW:
+			if (iwlwifi_mod_params.enable_ini)
+				iwl_fw_dbg_copy_tlv(drv->trans, tlv);
 		default:
 			IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
 			break;
@@ -1619,6 +1630,8 @@ void iwl_drv_stop(struct iwl_drv *drv)
 	debugfs_remove_recursive(drv->dbgfs_drv);
 #endif
 
+	iwl_fw_dbg_free(drv->trans);
+
 	kfree(drv);
 }
 
@@ -1749,6 +1762,10 @@ MODULE_PARM_DESC(lar_disable, "disable LAR functionality (default: N)");
 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, uint, 0644);
 MODULE_PARM_DESC(uapsd_disable,
 		 "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)");
+module_param_named(enable_ini, iwlwifi_mod_params.enable_ini,
+		   bool, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(enable_ini,
+		 "Enable debug INI TLV FW debug infrastructure (default: 0");
 
 /*
  * set bt_coex_active to true, uCode will do kill/defer
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-modparams.h b/drivers/net/wireless/intel/iwlwifi/iwl-modparams.h
index 6fc8dac4aab7..73b1c46f1158 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-modparams.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-modparams.h
@@ -122,6 +122,7 @@ enum iwl_uapsd_disable {
  * @fw_monitor: allow to use firmware monitor
  * @disable_11ac: disable VHT capabilities, default = false.
  * @remove_when_gone: remove an inaccessible device from the PCIe bus.
+ * @enable_ini: enable new FW debug infratructure (INI TLVs)
  */
 struct iwl_mod_params {
 	int swcrypto;
@@ -148,6 +149,7 @@ struct iwl_mod_params {
 	 */
 	bool disable_11ax;
 	bool remove_when_gone;
+	bool enable_ini;
 };
 
 #endif /* #__iwl_modparams_h__ */
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
index b0300e824815..08512305c5ac 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
@@ -73,6 +73,8 @@
 #include "iwl-op-mode.h"
 #include "fw/api/cmdhdr.h"
 #include "fw/api/txq.h"
+#include "fw/api/dbg-tlv.h"
+#include "iwl-dbg-tlv.h"
 
 /**
  * DOC: Transport layer - what is it ?
@@ -773,6 +775,8 @@ struct iwl_trans {
 	struct lockdep_map sync_cmd_lockdep_map;
 #endif
 
+	struct iwl_apply_point_data apply_points[IWL_FW_INI_APPLY_NUM];
+
 	const struct iwl_fw_dbg_dest_tlv_v1 *dbg_dest_tlv;
 	const struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
 	struct iwl_fw_dbg_trigger_tlv * const *dbg_trigger_tlv;

From 68f6f492c4fae8b5f0204de99689408f524c8b14 Mon Sep 17 00:00:00 2001
From: Sara Sharon <sara.sharon@intel.com>
Date: Thu, 14 Jun 2018 10:49:03 +0300
Subject: [PATCH 110/124] iwlwifi: trans: support loading ini TLVs from
 external file

Support loading and storing ini TLVs from external
file. Those TLVs are appended to the default TLVs,
so store them separately.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 .../net/wireless/intel/iwlwifi/iwl-dbg-tlv.c  | 81 +++++++++++++++++--
 .../net/wireless/intel/iwlwifi/iwl-dbg-tlv.h  |  7 +-
 drivers/net/wireless/intel/iwlwifi/iwl-drv.c  |  9 ++-
 .../net/wireless/intel/iwlwifi/iwl-trans.h    |  3 +
 4 files changed, 89 insertions(+), 11 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
index acefd7d5d099..7b2951521c77 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
@@ -63,7 +63,8 @@
 #include "iwl-trans.h"
 #include "iwl-dbg-tlv.h"
 
-void iwl_fw_dbg_copy_tlv(struct iwl_trans *trans, struct iwl_ucode_tlv *tlv)
+void iwl_fw_dbg_copy_tlv(struct iwl_trans *trans, struct iwl_ucode_tlv *tlv,
+			 bool ext)
 {
 	struct iwl_apply_point_data *data;
 	struct iwl_fw_ini_header *header = (void *)&tlv->data[0];
@@ -75,7 +76,10 @@ void iwl_fw_dbg_copy_tlv(struct iwl_trans *trans, struct iwl_ucode_tlv *tlv)
 		      "Invalid apply point id %d\n", apply_point))
 		return;
 
-	data = &trans->apply_points[apply_point];
+	if (ext)
+		data = &trans->apply_points_ext[apply_point];
+	else
+		data = &trans->apply_points[apply_point];
 
 	/*
 	 * Make sure we still have room to copy this TLV. Offset points to the
@@ -90,7 +94,8 @@ void iwl_fw_dbg_copy_tlv(struct iwl_trans *trans, struct iwl_ucode_tlv *tlv)
 	data->offset += copy_size;
 }
 
-void iwl_alloc_dbg_tlv(struct iwl_trans *trans, size_t len, const u8 *data)
+void iwl_alloc_dbg_tlv(struct iwl_trans *trans, size_t len, const u8 *data,
+		       bool ext)
 {
 	struct iwl_ucode_tlv *tlv;
 	u32 size[IWL_FW_INI_APPLY_NUM] = {0};
@@ -137,8 +142,13 @@ void iwl_alloc_dbg_tlv(struct iwl_trans *trans, size_t len, const u8 *data)
 			return;
 		}
 
-		trans->apply_points[i].data = mem;
-		trans->apply_points[i].size = size[i];
+		if (ext) {
+			trans->apply_points_ext[i].data = mem;
+			trans->apply_points_ext[i].size = size[i];
+		} else {
+			trans->apply_points[i].data = mem;
+			trans->apply_points[i].size = size[i];
+		}
 	}
 }
 
@@ -150,5 +160,66 @@ void iwl_fw_dbg_free(struct iwl_trans *trans)
 		kfree(trans->apply_points[i].data);
 		trans->apply_points[i].size = 0;
 		trans->apply_points[i].offset = 0;
+
+		kfree(trans->apply_points_ext[i].data);
+		trans->apply_points_ext[i].size = 0;
+		trans->apply_points_ext[i].offset = 0;
 	}
 }
+
+static int iwl_parse_fw_dbg_tlv(struct iwl_trans *trans, const u8 *data,
+				size_t len)
+{
+	struct iwl_ucode_tlv *tlv;
+	enum iwl_ucode_tlv_type tlv_type;
+	u32 tlv_len;
+
+	while (len >= sizeof(*tlv)) {
+		len -= sizeof(*tlv);
+		tlv = (void *)data;
+
+		tlv_len = le32_to_cpu(tlv->length);
+		tlv_type = le32_to_cpu(tlv->type);
+
+		if (len < tlv_len) {
+			IWL_ERR(trans, "invalid TLV len: %zd/%u\n",
+				len, tlv_len);
+			return -EINVAL;
+		}
+		len -= ALIGN(tlv_len, 4);
+		data += sizeof(*tlv) + ALIGN(tlv_len, 4);
+
+		switch (tlv_type) {
+		case IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION:
+		case IWL_UCODE_TLV_TYPE_HCMD:
+		case IWL_UCODE_TLV_TYPE_REGIONS:
+		case IWL_UCODE_TLV_TYPE_TRIGGERS:
+		case IWL_UCODE_TLV_TYPE_DEBUG_FLOW:
+			iwl_fw_dbg_copy_tlv(trans, tlv, true);
+		default:
+			WARN_ONCE(1, "Invalid TLV %x\n", tlv_type);
+			break;
+		}
+	}
+
+	return 0;
+}
+
+void iwl_load_fw_dbg_tlv(struct device *dev, struct iwl_trans *trans)
+{
+	const struct firmware *fw;
+	int res;
+
+	if (trans->external_ini_loaded || !iwlwifi_mod_params.enable_ini)
+		return;
+
+	res = request_firmware(&fw, "iwl-dbg-tlv.ini", dev);
+	if (res)
+		return;
+
+	iwl_alloc_dbg_tlv(trans, fw->size, fw->data, true);
+	iwl_parse_fw_dbg_tlv(trans, fw->data, fw->size);
+
+	trans->external_ini_loaded = true;
+	release_firmware(fw);
+}
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.h b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.h
index a368017af089..222cd789e07a 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.h
@@ -77,8 +77,11 @@ struct iwl_apply_point_data {
 };
 
 struct iwl_trans;
+void iwl_load_fw_dbg_tlv(struct device *dev, struct iwl_trans *trans);
 void iwl_fw_dbg_free(struct iwl_trans *trans);
-void iwl_fw_dbg_copy_tlv(struct iwl_trans *trans, struct iwl_ucode_tlv *tlv);
-void iwl_alloc_dbg_tlv(struct iwl_trans *trans, size_t len, const u8 *data);
+void iwl_fw_dbg_copy_tlv(struct iwl_trans *trans, struct iwl_ucode_tlv *tlv,
+			 bool ext);
+void iwl_alloc_dbg_tlv(struct iwl_trans *trans, size_t len, const u8 *data,
+		       bool ext);
 
 #endif /* __iwl_dbg_tlv_h__*/
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
index a986e5795831..7b98125e4eb9 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
@@ -647,7 +647,7 @@ static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
 	len -= sizeof(*ucode);
 
 	if (iwlwifi_mod_params.enable_ini)
-		iwl_alloc_dbg_tlv(drv->trans, len, data);
+		iwl_alloc_dbg_tlv(drv->trans, len, data, false);
 
 	while (len >= sizeof(*tlv)) {
 		len -= sizeof(*tlv);
@@ -1096,7 +1096,7 @@ static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
 		case IWL_UCODE_TLV_TYPE_TRIGGERS:
 		case IWL_UCODE_TLV_TYPE_DEBUG_FLOW:
 			if (iwlwifi_mod_params.enable_ini)
-				iwl_fw_dbg_copy_tlv(drv->trans, tlv);
+				iwl_fw_dbg_copy_tlv(drv->trans, tlv, false);
 		default:
 			IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
 			break;
@@ -1576,7 +1576,7 @@ struct iwl_drv *iwl_drv_start(struct iwl_trans *trans)
 	if (!drv->dbgfs_drv) {
 		IWL_ERR(drv, "failed to create debugfs directory\n");
 		ret = -ENOMEM;
-		goto err_free_drv;
+		goto err_free_tlv;
 	}
 
 	/* Create transport layer debugfs dir */
@@ -1601,7 +1601,8 @@ struct iwl_drv *iwl_drv_start(struct iwl_trans *trans)
 #ifdef CONFIG_IWLWIFI_DEBUGFS
 err_free_dbgfs:
 	debugfs_remove_recursive(drv->dbgfs_drv);
-err_free_drv:
+err_free_tlv:
+	iwl_fw_dbg_free(drv->trans);
 #endif
 	kfree(drv);
 err:
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
index 08512305c5ac..0c0cd7dccde8 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
@@ -776,6 +776,9 @@ struct iwl_trans {
 #endif
 
 	struct iwl_apply_point_data apply_points[IWL_FW_INI_APPLY_NUM];
+	struct iwl_apply_point_data apply_points_ext[IWL_FW_INI_APPLY_NUM];
+
+	bool external_ini_loaded;
 
 	const struct iwl_fw_dbg_dest_tlv_v1 *dbg_dest_tlv;
 	const struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];

From 743742231a79ea068b3897165a74f9a04cf76846 Mon Sep 17 00:00:00 2001
From: Sara Sharon <sara.sharon@intel.com>
Date: Wed, 13 Jun 2018 14:41:35 +0300
Subject: [PATCH 111/124] iwlwifi: dbg: disable triggers for ini

When ini is loaded, disable all legacy trigger
configuration.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/fw/dbg.c      | 3 +++
 drivers/net/wireless/intel/iwlwifi/fw/dbg.h      | 3 +++
 drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c | 2 ++
 drivers/net/wireless/intel/iwlwifi/iwl-trans.h   | 1 +
 4 files changed, 9 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
index efd4ac5bba73..6460b937d331 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
@@ -1117,6 +1117,9 @@ int iwl_fw_dbg_collect_trig(struct iwl_fw_runtime *fwrt,
 	int ret, len = 0;
 	char buf[64];
 
+	if (fwrt->trans->ini_valid)
+		return 0;
+
 	if (fmt) {
 		va_list ap;
 
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.h b/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
index 544b42f9fb19..07403aa29793 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
@@ -192,6 +192,9 @@ _iwl_fw_dbg_trigger_on(struct iwl_fw_runtime *fwrt,
 {
 	struct iwl_fw_dbg_trigger_tlv *trig;
 
+	if (fwrt->trans->ini_valid)
+		return NULL;
+
 	if (!iwl_fw_dbg_trigger_enabled(fwrt->fw, id))
 		return NULL;
 
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
index 7b2951521c77..0160662a1749 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
@@ -149,6 +149,8 @@ void iwl_alloc_dbg_tlv(struct iwl_trans *trans, size_t len, const u8 *data,
 			trans->apply_points[i].data = mem;
 			trans->apply_points[i].size = size[i];
 		}
+
+		trans->ini_valid = true;
 	}
 }
 
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
index 0c0cd7dccde8..3d455cf5822b 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
@@ -779,6 +779,7 @@ struct iwl_trans {
 	struct iwl_apply_point_data apply_points_ext[IWL_FW_INI_APPLY_NUM];
 
 	bool external_ini_loaded;
+	bool ini_valid;
 
 	const struct iwl_fw_dbg_dest_tlv_v1 *dbg_dest_tlv;
 	const struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];

From d47902f9f71d7679b9a2a9d14aa7d4b98d95430b Mon Sep 17 00:00:00 2001
From: Sara Sharon <sara.sharon@intel.com>
Date: Wed, 13 Jun 2018 15:19:47 +0300
Subject: [PATCH 112/124] iwlwifi: dbg: add apply point logic

Add a function to be called when apply point occurs.
For each of the TLVs, the function will perform the
apply point logic:
- For HCMD - send the stored host command
- For buffer allocation - allocate the memory and send the
  buffer allocation command
- For trigger and region - update the stored configuration

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/fw/dbg.c   | 207 ++++++++++++++++++
 drivers/net/wireless/intel/iwlwifi/fw/dbg.h   |   4 +
 drivers/net/wireless/intel/iwlwifi/fw/img.h   |  26 +++
 .../net/wireless/intel/iwlwifi/fw/runtime.h   |   3 +
 .../net/wireless/intel/iwlwifi/iwl-dbg-tlv.c  |   3 +
 .../net/wireless/intel/iwlwifi/iwl-trans.h    |   3 +-
 6 files changed, 244 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
index 6460b937d331..76050cc3532a 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
@@ -1263,3 +1263,210 @@ void iwl_fw_dbg_read_d3_debug_data(struct iwl_fw_runtime *fwrt)
 				 cfg->d3_debug_data_length);
 }
 IWL_EXPORT_SYMBOL(iwl_fw_dbg_read_d3_debug_data);
+
+static void
+iwl_fw_dbg_buffer_allocation(struct iwl_fw_runtime *fwrt,
+			     struct iwl_fw_ini_allocation_tlv *alloc)
+{
+	struct iwl_trans *trans = fwrt->trans;
+	struct iwl_continuous_record_cmd cont_rec = {};
+	struct iwl_buffer_allocation_cmd *cmd = (void *)&cont_rec.pad[0];
+	struct iwl_host_cmd hcmd = {
+		.id = LDBG_CONFIG_CMD,
+		.flags = CMD_ASYNC,
+		.data[0] = &cont_rec,
+		.len[0] = sizeof(cont_rec),
+	};
+	void *virtual_addr = NULL;
+	u32 size = le32_to_cpu(alloc->size);
+	dma_addr_t phys_addr;
+
+	cont_rec.record_mode.enable_recording = cpu_to_le16(BUFFER_ALLOCATION);
+
+	if (!trans->num_blocks &&
+	    le32_to_cpu(alloc->buffer_location) !=
+	    IWL_FW_INI_LOCATION_DRAM_PATH)
+		return;
+
+	virtual_addr = dma_alloc_coherent(fwrt->trans->dev, size,
+					  &phys_addr, GFP_KERNEL);
+
+	/* TODO: alloc fragments if needed */
+	if (!virtual_addr)
+		IWL_ERR(fwrt, "Failed to allocate debug memory\n");
+
+	if (WARN_ON_ONCE(trans->num_blocks == ARRAY_SIZE(trans->fw_mon)))
+		return;
+
+	trans->fw_mon[trans->num_blocks].block = virtual_addr;
+	trans->fw_mon[trans->num_blocks].physical = phys_addr;
+	trans->fw_mon[trans->num_blocks].size = size;
+	trans->num_blocks++;
+
+	IWL_DEBUG_FW(trans, "Allocated debug block of size %d\n", size);
+
+	/* First block is assigned via registers / context info */
+	if (trans->num_blocks == 1)
+		return;
+
+	cmd->num_frags = cpu_to_le32(1);
+	cmd->fragments[0].address = cpu_to_le64(phys_addr);
+	cmd->fragments[0].size = alloc->size;
+	cmd->allocation_id = alloc->allocation_id;
+	cmd->buffer_location = alloc->buffer_location;
+
+	iwl_trans_send_cmd(trans, &hcmd);
+}
+
+static void iwl_fw_dbg_send_hcmd(struct iwl_fw_runtime *fwrt,
+				 struct iwl_ucode_tlv *tlv)
+{
+	struct iwl_fw_ini_hcmd_tlv *hcmd_tlv = (void *)&tlv->data[0];
+	struct iwl_fw_ini_hcmd *data = &hcmd_tlv->hcmd;
+	u16 len = le32_to_cpu(tlv->length) - sizeof(*hcmd_tlv);
+
+	struct iwl_host_cmd hcmd = {
+		.id = WIDE_ID(data->group, data->id),
+		.len = { len, },
+		.data = { data->data, },
+	};
+
+	iwl_trans_send_cmd(fwrt->trans, &hcmd);
+}
+
+static void iwl_fw_dbg_update_regions(struct iwl_fw_runtime *fwrt,
+				      struct iwl_fw_ini_region_tlv *tlv,
+				      bool ext, enum iwl_fw_ini_apply_point pnt)
+{
+	void *iter = (void *)tlv->region_config;
+	int i, size = le32_to_cpu(tlv->num_regions);
+
+	for (i = 0; i < size; i++) {
+		struct iwl_fw_ini_region_cfg *reg = iter;
+		int id = le32_to_cpu(reg->region_id);
+		struct iwl_fw_ini_active_regs *active;
+
+		if (WARN_ON(id >= ARRAY_SIZE(fwrt->dump.active_regs)))
+			break;
+
+		active = &fwrt->dump.active_regs[id];
+
+		if (ext && active->apply_point == pnt)
+			IWL_WARN(fwrt->trans,
+				 "External region TLV overrides FW default %x\n",
+				 id);
+
+		IWL_DEBUG_FW(fwrt,
+			     "%s: apply point %d, activating region ID %d\n",
+			     __func__, pnt, id);
+
+		active->reg = reg;
+		active->apply_point = pnt;
+
+		if (le32_to_cpu(reg->region_type) !=
+		    IWL_FW_INI_REGION_DRAM_BUFFER)
+			iter += le32_to_cpu(reg->num_regions) * sizeof(__le32);
+
+		iter += sizeof(*reg);
+	}
+}
+
+static void iwl_fw_dbg_update_triggers(struct iwl_fw_runtime *fwrt,
+				       struct iwl_fw_ini_trigger_tlv *tlv,
+				       bool ext,
+				       enum iwl_fw_ini_apply_point apply_point)
+{
+	int i, size = le32_to_cpu(tlv->num_triggers);
+	void *iter = (void *)tlv->trigger_config;
+
+	for (i = 0; i < size; i++) {
+		struct iwl_fw_ini_trigger *trig = iter;
+		struct iwl_fw_ini_active_triggers *active;
+		int id = le32_to_cpu(trig->trigger_id);
+		u32 num;
+
+		if (WARN_ON(id >= ARRAY_SIZE(fwrt->dump.active_trigs)))
+			break;
+
+		active = &fwrt->dump.active_trigs[id];
+
+		if (active->apply_point != apply_point) {
+			active->conf = NULL;
+			active->conf_ext = NULL;
+		}
+
+		num = le32_to_cpu(trig->num_regions);
+
+		if (ext && active->apply_point == apply_point) {
+			num += le32_to_cpu(active->conf->num_regions);
+			if (trig->ignore_default) {
+				active->conf_ext = active->conf;
+				active->conf = trig;
+			} else {
+				active->conf_ext = trig;
+			}
+		} else {
+			active->conf = trig;
+		}
+
+		iter += sizeof(*trig) +
+			le32_to_cpu(trig->num_regions) * sizeof(__le32);
+
+		active->active = num;
+		active->apply_point = apply_point;
+	}
+}
+
+static void _iwl_fw_dbg_apply_point(struct iwl_fw_runtime *fwrt,
+				    struct iwl_apply_point_data *data,
+				    enum iwl_fw_ini_apply_point pnt,
+				    bool ext)
+{
+	void *iter = data->data;
+
+	while (iter && iter < data->data + data->size) {
+		struct iwl_ucode_tlv *tlv = iter;
+		void *ini_tlv = (void *)tlv->data;
+		u32 type = le32_to_cpu(tlv->type);
+
+		switch (type) {
+		case IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION:
+			iwl_fw_dbg_buffer_allocation(fwrt, ini_tlv);
+			break;
+		case IWL_UCODE_TLV_TYPE_HCMD:
+			if (pnt < IWL_FW_INI_APPLY_AFTER_ALIVE) {
+				IWL_ERR(fwrt,
+					"Invalid apply point %x for host command\n",
+					pnt);
+				goto next;
+			}
+			iwl_fw_dbg_send_hcmd(fwrt, tlv);
+			break;
+		case IWL_UCODE_TLV_TYPE_REGIONS:
+			iwl_fw_dbg_update_regions(fwrt, ini_tlv, ext, pnt);
+			break;
+		case IWL_UCODE_TLV_TYPE_TRIGGERS:
+			iwl_fw_dbg_update_triggers(fwrt, ini_tlv, ext, pnt);
+			break;
+		case IWL_UCODE_TLV_TYPE_DEBUG_FLOW:
+			break;
+		default:
+			WARN_ONCE(1, "Invalid TLV %x for apply point\n", type);
+			break;
+		}
+next:
+		iter += sizeof(*tlv) + le32_to_cpu(tlv->length);
+	}
+}
+
+void iwl_fw_dbg_apply_point(struct iwl_fw_runtime *fwrt,
+			    enum iwl_fw_ini_apply_point apply_point)
+{
+	void *data = &fwrt->trans->apply_points[apply_point];
+
+	_iwl_fw_dbg_apply_point(fwrt, data, apply_point, false);
+
+	data = &fwrt->trans->apply_points_ext[apply_point];
+	_iwl_fw_dbg_apply_point(fwrt, data, apply_point, true);
+}
+IWL_EXPORT_SYMBOL(iwl_fw_dbg_apply_point);
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.h b/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
index 07403aa29793..6b3c5677c53a 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
@@ -72,6 +72,7 @@
 #include "file.h"
 #include "error-dump.h"
 #include "api/commands.h"
+#include "api/dbg-tlv.h"
 
 /**
  * struct iwl_fw_dump_desc - describes the dump
@@ -384,4 +385,7 @@ static inline void iwl_fw_resume_timestamp(struct iwl_fw_runtime *fwrt) {}
 void iwl_fw_assert_error_dump(struct iwl_fw_runtime *fwrt);
 void iwl_fw_alive_error_dump(struct iwl_fw_runtime *fwrt);
 void iwl_fw_dbg_collect_sync(struct iwl_fw_runtime *fwrt);
+void iwl_fw_dbg_apply_point(struct iwl_fw_runtime *fwrt,
+			    enum iwl_fw_ini_apply_point apply_point);
+
 #endif  /* __iwl_fw_dbg_h__ */
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/img.h b/drivers/net/wireless/intel/iwlwifi/fw/img.h
index 54dbbd998abf..12333167ea23 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/img.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/img.h
@@ -65,6 +65,8 @@
 #define __iwl_fw_img_h__
 #include <linux/types.h>
 
+#include "api/dbg-tlv.h"
+
 #include "file.h"
 #include "error-dump.h"
 
@@ -220,6 +222,30 @@ struct iwl_fw_dbg {
 	u32 dump_mask;
 };
 
+/**
+ * struct iwl_fw_ini_active_triggers
+ * @active: is this trigger active
+ * @apply_point: last apply point that updated this trigger
+ * @conf: active trigger
+ * @conf_ext: second trigger, contains extra regions to dump
+ */
+struct iwl_fw_ini_active_triggers {
+	bool active;
+	enum iwl_fw_ini_apply_point apply_point;
+	struct iwl_fw_ini_trigger *conf;
+	struct iwl_fw_ini_trigger *conf_ext;
+};
+
+/**
+ * struct iwl_fw_ini_active_regs
+ * @reg: active region from TLV
+ * @apply_point: apply point where it became active
+ */
+struct iwl_fw_ini_active_regs {
+	struct iwl_fw_ini_region_cfg *reg;
+	enum iwl_fw_ini_apply_point apply_point;
+};
+
 /**
  * struct iwl_fw - variables associated with the firmware
  *
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/runtime.h b/drivers/net/wireless/intel/iwlwifi/fw/runtime.h
index 8a139431e7be..886227b7c949 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/runtime.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/runtime.h
@@ -64,6 +64,7 @@
 #include "iwl-trans.h"
 #include "img.h"
 #include "fw/api/debug.h"
+#include "fw/api/dbg-tlv.h"
 #include "fw/api/paging.h"
 #include "iwl-eeprom-parse.h"
 
@@ -139,6 +140,8 @@ struct iwl_fw_runtime {
 		/* ts of the beginning of a non-collect fw dbg data period */
 		unsigned long non_collect_ts_start[FW_DBG_TRIGGER_MAX - 1];
 		u32 *d3_debug_data;
+		struct iwl_fw_ini_active_regs active_regs[IWL_FW_INI_MAX_REGION_ID];
+		struct iwl_fw_ini_active_triggers active_trigs[IWL_FW_TRIGGER_ID_NUM];
 	} dump;
 #ifdef CONFIG_IWLWIFI_DEBUGFS
 	struct {
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
index 0160662a1749..bc1e4d4bb42d 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
@@ -123,6 +123,9 @@ void iwl_alloc_dbg_tlv(struct iwl_trans *trans, size_t len, const u8 *data,
 		hdr = (void *)&tlv->data[0];
 		apply = le32_to_cpu(hdr->apply_point);
 
+		IWL_DEBUG_FW(trans, "Read TLV %x, apply point %d\n",
+			     le32_to_cpu(tlv->type), apply);
+
 		if (WARN_ON(apply >= IWL_FW_INI_APPLY_NUM))
 			continue;
 
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
index 3d455cf5822b..c2531eae5e16 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
@@ -680,7 +680,6 @@ enum iwl_plat_pm_mode {
  * enter/exit (in msecs).
  */
 #define IWL_TRANS_IDLE_TIMEOUT 2000
-#define IWL_MAX_DEBUG_ALLOCATIONS	1
 
 /**
  * struct iwl_dram_data
@@ -786,7 +785,7 @@ struct iwl_trans {
 	struct iwl_fw_dbg_trigger_tlv * const *dbg_trigger_tlv;
 	u8 dbg_n_dest_reg;
 	int num_blocks;
-	struct iwl_dram_data fw_mon[IWL_MAX_DEBUG_ALLOCATIONS];
+	struct iwl_dram_data fw_mon[IWL_FW_INI_APPLY_NUM];
 
 	enum iwl_plat_pm_mode system_pm_mode;
 	enum iwl_plat_pm_mode runtime_pm_mode;

From f7805b33f9b13a87b1fcf9dfbc3dcbce281a1436 Mon Sep 17 00:00:00 2001
From: Lior Cohen <lior2.cohen@intel.com>
Date: Thu, 3 May 2018 10:17:05 +0300
Subject: [PATCH 113/124] iwlwifi: add debugfs file to read fw debug data
 recording

FW debug data will oneshot read all data available in DRAM
and fill the supplied user buffer. In case the read request
is greater than the new data in DRAM, the driver will write
all data it has and return the buffer immediately.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Lior Cohen <lior2.cohen@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/fw/dbg.h   |  14 ++
 drivers/net/wireless/intel/iwlwifi/iwl-drv.c  |   2 +
 .../net/wireless/intel/iwlwifi/iwl-trans.h    |   5 +
 drivers/net/wireless/intel/iwlwifi/mvm/fw.c   |   3 +
 .../wireless/intel/iwlwifi/pcie/internal.h    |  44 +++++
 .../net/wireless/intel/iwlwifi/pcie/trans.c   | 160 ++++++++++++++++++
 6 files changed, 228 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.h b/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
index 6b3c5677c53a..ab81ea8b636f 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
@@ -266,6 +266,9 @@ _iwl_fw_dbg_stop_recording(struct iwl_trans *trans,
 	iwl_write_prph(trans, DBGC_IN_SAMPLE, 0);
 	udelay(100);
 	iwl_write_prph(trans, DBGC_OUT_CTRL, 0);
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	trans->dbg_rec_on = false;
+#endif
 }
 
 static inline void
@@ -296,6 +299,14 @@ _iwl_fw_dbg_restart_recording(struct iwl_trans *trans,
 	}
 }
 
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+static inline void iwl_fw_set_dbg_rec_on(struct iwl_fw_runtime *fwrt)
+{
+	if (fwrt->fw->dbg.dest_tlv && fwrt->cur_fw_img == IWL_UCODE_REGULAR)
+		fwrt->trans->dbg_rec_on = true;
+}
+#endif
+
 static inline void
 iwl_fw_dbg_restart_recording(struct iwl_fw_runtime *fwrt,
 			     struct iwl_fw_dbg_params *params)
@@ -304,6 +315,9 @@ iwl_fw_dbg_restart_recording(struct iwl_fw_runtime *fwrt,
 		_iwl_fw_dbg_restart_recording(fwrt->trans, params);
 	else
 		iwl_fw_dbg_start_stop_hcmd(fwrt, true);
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	iwl_fw_set_dbg_rec_on(fwrt);
+#endif
 }
 
 static inline void iwl_fw_dump_conf_clear(struct iwl_fw_runtime *fwrt)
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
index 7b98125e4eb9..a65ba955783d 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
@@ -1628,6 +1628,8 @@ void iwl_drv_stop(struct iwl_drv *drv)
 	mutex_unlock(&iwlwifi_opmode_table_mtx);
 
 #ifdef CONFIG_IWLWIFI_DEBUGFS
+	drv->trans->ops->debugfs_cleanup(drv->trans);
+
 	debugfs_remove_recursive(drv->dbgfs_drv);
 #endif
 
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
index c2531eae5e16..a7009cd4232d 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
@@ -536,6 +536,8 @@ struct iwl_trans_rxq_dma_data {
  * @dump_data: return a vmalloc'ed buffer with debug data, maybe containing last
  *	TX'ed commands and similar. The buffer will be vfree'd by the caller.
  *	Note that the transport must fill in the proper file headers.
+ * @debugfs_cleanup: used in the driver unload flow to make a proper cleanup
+ *	of the trans debugfs
  */
 struct iwl_trans_ops {
 
@@ -605,6 +607,7 @@ struct iwl_trans_ops {
 
 	struct iwl_trans_dump_data *(*dump_data)(struct iwl_trans *trans,
 						 u32 dump_mask);
+	void (*debugfs_cleanup)(struct iwl_trans *trans);
 };
 
 /**
@@ -734,6 +737,7 @@ struct iwl_dram_data {
  * @runtime_pm_mode: the runtime power management mode in use.  This
  *	mode is set during the initialization phase and is not
  *	supposed to change during runtime.
+ * @dbg_rec_on: true iff there is a fw debug recording currently active
  */
 struct iwl_trans {
 	const struct iwl_trans_ops *ops;
@@ -790,6 +794,7 @@ struct iwl_trans {
 	enum iwl_plat_pm_mode system_pm_mode;
 	enum iwl_plat_pm_mode runtime_pm_mode;
 	bool suspending;
+	bool dbg_rec_on;
 
 	/* pointer to trans specific struct */
 	/*Ensure that this pointer will always be aligned to sizeof pointer */
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
index 2cd07247e0a7..263b03b3ea66 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
@@ -377,6 +377,9 @@ static int iwl_mvm_load_ucode_wait_alive(struct iwl_mvm *mvm,
 		atomic_set(&mvm->mac80211_queue_stop_count[i], 0);
 
 	set_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	iwl_fw_set_dbg_rec_on(&mvm->fwrt);
+#endif
 	clear_bit(IWL_FWRT_STATUS_WAIT_ALIVE, &mvm->fwrt.status);
 
 	return 0;
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
index f9c4c64dee66..0f816761ca45 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
@@ -378,6 +378,23 @@ struct iwl_tso_hdr_page {
 	u8 *pos;
 };
 
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+/**
+ * enum iwl_fw_mon_dbgfs_state - the different states of the monitor_data
+ * debugfs file
+ *
+ * @IWL_FW_MON_DBGFS_STATE_CLOSED: the file is closed.
+ * @IWL_FW_MON_DBGFS_STATE_OPEN: the file is open.
+ * @IWL_FW_MON_DBGFS_STATE_DISABLED: the file is disabled, once this state is
+ *	set the file can no longer be used.
+ */
+enum iwl_fw_mon_dbgfs_state {
+	IWL_FW_MON_DBGFS_STATE_CLOSED,
+	IWL_FW_MON_DBGFS_STATE_OPEN,
+	IWL_FW_MON_DBGFS_STATE_DISABLED,
+};
+#endif
+
 /**
  * enum iwl_shared_irq_flags - level of sharing for irq
  * @IWL_SHARED_IRQ_NON_RX: interrupt vector serves non rx causes.
@@ -414,6 +431,26 @@ struct iwl_self_init_dram {
 	int paging_cnt;
 };
 
+/**
+ * struct cont_rec: continuous recording data structure
+ * @prev_wr_ptr: the last address that was read in monitor_data
+ *	debugfs file
+ * @prev_wrap_cnt: the wrap count that was used during the last read in
+ *	monitor_data debugfs file
+ * @state: the state of monitor_data debugfs file as described
+ *	in &iwl_fw_mon_dbgfs_state enum
+ * @mutex: locked while reading from monitor_data debugfs file
+ */
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+struct cont_rec {
+	u32 prev_wr_ptr;
+	u32 prev_wrap_cnt;
+	u8  state;
+	/* Used to sync monitor_data debugfs file with driver unload flow */
+	struct mutex mutex;
+};
+#endif
+
 /**
  * struct iwl_trans_pcie - PCIe transport specific data
  * @rxq: all the RX queue data
@@ -451,6 +488,9 @@ struct iwl_self_init_dram {
  * @reg_lock: protect hw register access
  * @mutex: to protect stop_device / start_fw / start_hw
  * @cmd_in_flight: true when we have a host command in flight
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+ * @fw_mon_data: fw continuous recording data
+#endif
  * @msix_entries: array of MSI-X entries
  * @msix_enabled: true if managed to enable MSI-X
  * @shared_vec_mask: the type of causes the shared vector handles
@@ -538,6 +578,10 @@ struct iwl_trans_pcie {
 	bool cmd_hold_nic_awake;
 	bool ref_cmd_in_flight;
 
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	struct cont_rec fw_mon_data;
+#endif
+
 	struct msix_entry msix_entries[IWL_MAX_RX_HW_QUEUES];
 	bool msix_enabled;
 	u8 shared_vec_mask;
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
index 231ec8131ee8..166bacc5ea54 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
@@ -71,6 +71,7 @@
 #include <linux/vmalloc.h>
 #include <linux/pm_runtime.h>
 #include <linux/module.h>
+#include <linux/wait.h>
 
 #include "iwl-drv.h"
 #include "iwl-trans.h"
@@ -2709,6 +2710,137 @@ static ssize_t iwl_dbgfs_rfkill_write(struct file *file,
 	return count;
 }
 
+static int iwl_dbgfs_monitor_data_open(struct inode *inode,
+				       struct file *file)
+{
+	struct iwl_trans *trans = inode->i_private;
+	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
+
+	if (!trans->dbg_dest_tlv ||
+	    trans->dbg_dest_tlv->monitor_mode != EXTERNAL_MODE) {
+		IWL_ERR(trans, "Debug destination is not set to DRAM\n");
+		return -ENOENT;
+	}
+
+	if (trans_pcie->fw_mon_data.state != IWL_FW_MON_DBGFS_STATE_CLOSED)
+		return -EBUSY;
+
+	trans_pcie->fw_mon_data.state = IWL_FW_MON_DBGFS_STATE_OPEN;
+	return simple_open(inode, file);
+}
+
+static int iwl_dbgfs_monitor_data_release(struct inode *inode,
+					  struct file *file)
+{
+	struct iwl_trans_pcie *trans_pcie =
+		IWL_TRANS_GET_PCIE_TRANS(inode->i_private);
+
+	if (trans_pcie->fw_mon_data.state == IWL_FW_MON_DBGFS_STATE_OPEN)
+		trans_pcie->fw_mon_data.state = IWL_FW_MON_DBGFS_STATE_CLOSED;
+	return 0;
+}
+
+static bool iwl_write_to_user_buf(char __user *user_buf, ssize_t count,
+				  void *buf, ssize_t *size,
+				  ssize_t *bytes_copied)
+{
+	int buf_size_left = count - *bytes_copied;
+
+	buf_size_left = buf_size_left - (buf_size_left % sizeof(u32));
+	if (*size > buf_size_left)
+		*size = buf_size_left;
+
+	*size -= copy_to_user(user_buf, buf, *size);
+	*bytes_copied += *size;
+
+	if (buf_size_left == *size)
+		return true;
+	return false;
+}
+
+static ssize_t iwl_dbgfs_monitor_data_read(struct file *file,
+					   char __user *user_buf,
+					   size_t count, loff_t *ppos)
+{
+	struct iwl_trans *trans = file->private_data;
+	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
+	void *cpu_addr = (void *)trans->fw_mon[0].block, *curr_buf;
+	struct cont_rec *data = &trans_pcie->fw_mon_data;
+	u32 write_ptr_addr, wrap_cnt_addr, write_ptr, wrap_cnt;
+	ssize_t size, bytes_copied = 0;
+	bool b_full;
+
+	if (trans->dbg_dest_tlv) {
+		write_ptr_addr =
+			le32_to_cpu(trans->dbg_dest_tlv->write_ptr_reg);
+		wrap_cnt_addr = le32_to_cpu(trans->dbg_dest_tlv->wrap_count);
+	} else {
+		write_ptr_addr = MON_BUFF_WRPTR;
+		wrap_cnt_addr = MON_BUFF_CYCLE_CNT;
+	}
+
+	if (unlikely(!trans->dbg_rec_on))
+		return 0;
+
+	mutex_lock(&data->mutex);
+	if (data->state ==
+	    IWL_FW_MON_DBGFS_STATE_DISABLED) {
+		mutex_unlock(&data->mutex);
+		return 0;
+	}
+
+	/* write_ptr position in bytes rather then DW */
+	write_ptr = iwl_read_prph(trans, write_ptr_addr) * sizeof(u32);
+	wrap_cnt = iwl_read_prph(trans, wrap_cnt_addr);
+
+	if (data->prev_wrap_cnt == wrap_cnt) {
+		size = write_ptr - data->prev_wr_ptr;
+		curr_buf = cpu_addr + data->prev_wr_ptr;
+		b_full = iwl_write_to_user_buf(user_buf, count,
+					       curr_buf, &size,
+					       &bytes_copied);
+		data->prev_wr_ptr += size;
+
+	} else if (data->prev_wrap_cnt == wrap_cnt - 1 &&
+		   write_ptr < data->prev_wr_ptr) {
+		size = trans->fw_mon[0].size - data->prev_wr_ptr;
+		curr_buf = cpu_addr + data->prev_wr_ptr;
+		b_full = iwl_write_to_user_buf(user_buf, count,
+					       curr_buf, &size,
+					       &bytes_copied);
+		data->prev_wr_ptr += size;
+
+		if (!b_full) {
+			size = write_ptr;
+			b_full = iwl_write_to_user_buf(user_buf, count,
+						       cpu_addr, &size,
+						       &bytes_copied);
+			data->prev_wr_ptr = size;
+			data->prev_wrap_cnt++;
+		}
+	} else {
+		if (data->prev_wrap_cnt == wrap_cnt - 1 &&
+		    write_ptr > data->prev_wr_ptr)
+			IWL_WARN(trans,
+				 "write pointer passed previous write pointer, start copying from the beginning\n");
+		else if (!unlikely(data->prev_wrap_cnt == 0 &&
+				   data->prev_wr_ptr == 0))
+			IWL_WARN(trans,
+				 "monitor data is out of sync, start copying from the beginning\n");
+
+		size = write_ptr;
+		b_full = iwl_write_to_user_buf(user_buf, count,
+					       cpu_addr, &size,
+					       &bytes_copied);
+		data->prev_wr_ptr = size;
+		data->prev_wrap_cnt = wrap_cnt;
+	}
+
+	mutex_unlock(&data->mutex);
+
+	return bytes_copied;
+}
+
 DEBUGFS_READ_WRITE_FILE_OPS(interrupt);
 DEBUGFS_READ_FILE_OPS(fh_reg);
 DEBUGFS_READ_FILE_OPS(rx_queue);
@@ -2716,6 +2848,12 @@ DEBUGFS_READ_FILE_OPS(tx_queue);
 DEBUGFS_WRITE_FILE_OPS(csr);
 DEBUGFS_READ_WRITE_FILE_OPS(rfkill);
 
+static const struct file_operations iwl_dbgfs_monitor_data_ops = {
+	.read = iwl_dbgfs_monitor_data_read,
+	.open = iwl_dbgfs_monitor_data_open,
+	.release = iwl_dbgfs_monitor_data_release,
+};
+
 /* Create the debugfs files and directories */
 int iwl_trans_pcie_dbgfs_register(struct iwl_trans *trans)
 {
@@ -2727,12 +2865,23 @@ int iwl_trans_pcie_dbgfs_register(struct iwl_trans *trans)
 	DEBUGFS_ADD_FILE(csr, dir, 0200);
 	DEBUGFS_ADD_FILE(fh_reg, dir, 0400);
 	DEBUGFS_ADD_FILE(rfkill, dir, 0600);
+	DEBUGFS_ADD_FILE(monitor_data, dir, 0400);
 	return 0;
 
 err:
 	IWL_ERR(trans, "failed to create the trans debugfs entry\n");
 	return -ENOMEM;
 }
+
+static void iwl_trans_pcie_debugfs_cleanup(struct iwl_trans *trans)
+{
+	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
+	struct cont_rec *data = &trans_pcie->fw_mon_data;
+
+	mutex_lock(&data->mutex);
+	data->state = IWL_FW_MON_DBGFS_STATE_DISABLED;
+	mutex_unlock(&data->mutex);
+}
 #endif /*CONFIG_IWLWIFI_DEBUGFS */
 
 static u32 iwl_trans_pcie_get_cmdlen(struct iwl_trans *trans, void *tfd)
@@ -3211,6 +3360,9 @@ static const struct iwl_trans_ops trans_ops_pcie = {
 
 	.freeze_txq_timer = iwl_trans_pcie_freeze_txq_timer,
 	.block_txq_ptrs = iwl_trans_pcie_block_txq_ptrs,
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	.debugfs_cleanup = iwl_trans_pcie_debugfs_cleanup,
+#endif
 };
 
 static const struct iwl_trans_ops trans_ops_pcie_gen2 = {
@@ -3230,6 +3382,9 @@ static const struct iwl_trans_ops trans_ops_pcie_gen2 = {
 	.txq_free = iwl_trans_pcie_dyn_txq_free,
 	.wait_txq_empty = iwl_trans_pcie_wait_txq_empty,
 	.rxq_dma_data = iwl_trans_pcie_rxq_dma_data,
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	.debugfs_cleanup = iwl_trans_pcie_debugfs_cleanup,
+#endif
 };
 
 struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev,
@@ -3481,6 +3636,11 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev,
 	trans->runtime_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
 #endif /* CONFIG_IWLWIFI_PCIE_RTPM */
 
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	trans_pcie->fw_mon_data.state = IWL_FW_MON_DBGFS_STATE_CLOSED;
+	mutex_init(&trans_pcie->fw_mon_data.mutex);
+#endif
+
 	return trans;
 
 out_free_ict:

From a024016fafc4a350db4364e4b6af34d8fd06ea9a Mon Sep 17 00:00:00 2001
From: Sara Sharon <sara.sharon@intel.com>
Date: Mon, 13 Aug 2018 08:21:10 +0300
Subject: [PATCH 114/124] iwlwifi: fw: support API change to debug TLVs

A new field was added. Since the code isn't operational (yet) no
need to worry about backward compatibility.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/fw/api/dbg-tlv.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/dbg-tlv.h b/drivers/net/wireless/intel/iwlwifi/fw/api/dbg-tlv.h
index 82f3c9bbd9b1..ab82b7a67967 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/api/dbg-tlv.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/api/dbg-tlv.h
@@ -180,6 +180,7 @@ struct iwl_fw_ini_region_tlv {
  * @occurrences: max amount of times to be fired
  * @ignore_consec: ignore consecutive triggers, in usec
  * @force_restart: force FW restart
+ * @multi_dut: initiate debug dump data on several DUTs
  * @trigger_data: generic data to be utilized per trigger
  * @num_regions: number of dump regions defined for this trigger
  * @data: region IDs
@@ -191,6 +192,7 @@ struct iwl_fw_ini_trigger {
 	__le32 occurrences;
 	__le32 ignore_consec;
 	__le32 force_restart;
+	__le32 multi_dut;
 	__le32 trigger_data;
 	__le32 num_regions;
 	__le32 data[];

From 3b5ee8dd8bb1a0f820eb5c85e31f92a2897bfa3d Mon Sep 17 00:00:00 2001
From: Shaul Triebitz <shaul.triebitz@intel.com>
Date: Wed, 8 Aug 2018 13:20:45 +0300
Subject: [PATCH 115/124] iwlwifi: mvm: set MAC_FILTER_IN_11AX in AP mode

In AP mode, if AP supports 11ax, add the MAC_FILTER_IN_11AX
flag in MAC_CTXT command (needed for various 11ax stuff).

Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c
index 990ebf89f342..e049d34a3553 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c
@@ -1194,6 +1194,9 @@ static void iwl_mvm_mac_ctxt_cmd_fill_ap(struct iwl_mvm *mvm,
 		IWL_DEBUG_HC(mvm, "No need to receive beacons\n");
 	}
 
+	if (vif->bss_conf.he_support && !iwlwifi_mod_params.disable_11ax)
+		cmd->filter_flags |= cpu_to_le32(MAC_FILTER_IN_11AX);
+
 	ctxt_ap->bi = cpu_to_le32(vif->bss_conf.beacon_int);
 	ctxt_ap->dtim_interval = cpu_to_le32(vif->bss_conf.beacon_int *
 					     vif->bss_conf.dtim_period);

From 02221a81887a9ed83cd4b355e0342eb241d31dea Mon Sep 17 00:00:00 2001
From: Shaul Triebitz <shaul.triebitz@intel.com>
Date: Wed, 8 Aug 2018 13:24:50 +0300
Subject: [PATCH 116/124] iwlwifi: mvm: send the STA_HE_CTXT command in AP mode

In AP mode, if AP supports HE (and the STA), send the
STA_HE_CTXT command.

This is needed mainly for PPE (packet extension) params.

Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index 55b965629e33..64be5fa7eda3 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -2968,6 +2968,9 @@ static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
 		if (vif->type == NL80211_IFTYPE_AP) {
 			mvmvif->ap_assoc_sta_count++;
 			iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
+			if (vif->bss_conf.he_support &&
+			    !iwlwifi_mod_params.disable_11ax)
+				iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->sta_id);
 		}
 
 		iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band,

From 520229e4b02dc4f5241a251a569fe0691a2c2e2c Mon Sep 17 00:00:00 2001
From: Shaul Triebitz <shaul.triebitz@intel.com>
Date: Wed, 18 Jul 2018 10:29:53 +0300
Subject: [PATCH 117/124] iwlwifi: mvm: set HW capability VHT_EXT_NSS_BW

Enable the VHT extended NSS BW feature in iwlwifi/mvm.

Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index 64be5fa7eda3..6fe48cc31071 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -419,6 +419,7 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 	ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
 	ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR);
 	ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP);
+	ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW);
 
 	if (iwl_mvm_has_tlc_offload(mvm)) {
 		ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW);

From 58d81d64e06ffaea6bddc85ae2b7295c371bcc55 Mon Sep 17 00:00:00 2001
From: Priit Laes <plaes@plaes.org>
Date: Mon, 19 Nov 2018 20:01:22 +0200
Subject: [PATCH 118/124] lib: cordic: Move cordic macros and defines to header
 file

Now that these macros are in header file, we can eventually
clean up the duplicate macros present in the drivers that
utilize the same cordic algorithm implementation.

Also add CORDIC_ prefix to nonprefixed macros.

Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Priit Laes <plaes@plaes.org>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 include/linux/cordic.h |  9 +++++++++
 lib/cordic.c           | 23 +++++++----------------
 2 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/include/linux/cordic.h b/include/linux/cordic.h
index cf68ca4a508c..3d656f54d64f 100644
--- a/include/linux/cordic.h
+++ b/include/linux/cordic.h
@@ -18,6 +18,15 @@
 
 #include <linux/types.h>
 
+#define CORDIC_ANGLE_GEN	39797
+#define CORDIC_PRECISION_SHIFT	16
+#define CORDIC_NUM_ITER	(CORDIC_PRECISION_SHIFT + 2)
+
+#define CORDIC_FIXED(X)	((s32)((X) << CORDIC_PRECISION_SHIFT))
+#define CORDIC_FLOAT(X)	(((X) >= 0) \
+		? ((((X) >> (CORDIC_PRECISION_SHIFT - 1)) + 1) >> 1) \
+		: -((((-(X)) >> (CORDIC_PRECISION_SHIFT - 1)) + 1) >> 1))
+
 /**
  * struct cordic_iq - i/q coordinate.
  *
diff --git a/lib/cordic.c b/lib/cordic.c
index 6cf477839ebd..8ef27c12956f 100644
--- a/lib/cordic.c
+++ b/lib/cordic.c
@@ -16,15 +16,6 @@
 #include <linux/module.h>
 #include <linux/cordic.h>
 
-#define CORDIC_ANGLE_GEN	39797
-#define CORDIC_PRECISION_SHIFT	16
-#define	CORDIC_NUM_ITER		(CORDIC_PRECISION_SHIFT + 2)
-
-#define	FIXED(X)	((s32)((X) << CORDIC_PRECISION_SHIFT))
-#define	FLOAT(X)	(((X) >= 0) \
-		? ((((X) >> (CORDIC_PRECISION_SHIFT - 1)) + 1) >> 1) \
-		: -((((-(X)) >> (CORDIC_PRECISION_SHIFT - 1)) + 1) >> 1))
-
 static const s32 arctan_table[] = {
 	2949120,
 	1740967,
@@ -64,16 +55,16 @@ struct cordic_iq cordic_calc_iq(s32 theta)
 	coord.q = 0;
 	angle = 0;
 
-	theta = FIXED(theta);
+	theta = CORDIC_FIXED(theta);
 	signtheta = (theta < 0) ? -1 : 1;
-	theta = ((theta + FIXED(180) * signtheta) % FIXED(360)) -
-		FIXED(180) * signtheta;
+	theta = ((theta + CORDIC_FIXED(180) * signtheta) % CORDIC_FIXED(360)) -
+		CORDIC_FIXED(180) * signtheta;
 
-	if (FLOAT(theta) > 90) {
-		theta -= FIXED(180);
+	if (CORDIC_FLOAT(theta) > 90) {
+		theta -= CORDIC_FIXED(180);
 		signx = -1;
-	} else if (FLOAT(theta) < -90) {
-		theta += FIXED(180);
+	} else if (CORDIC_FLOAT(theta) < -90) {
+		theta += CORDIC_FIXED(180);
 		signx = -1;
 	}
 

From ea3edda9ddba634b9bcb8fcdcd95fe6b0a031a47 Mon Sep 17 00:00:00 2001
From: Priit Laes <plaes@plaes.org>
Date: Mon, 19 Nov 2018 20:01:23 +0200
Subject: [PATCH 119/124] brcmsmac: Use cordic-related macros from common
 cordic library

Current driver includes macro that is available from general cordic
library. Use that and drop unused duplicate and unneeded internal
definitions.

Signed-off-by: Priit Laes <plaes@plaes.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 .../net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_int.h | 7 -------
 .../net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c | 4 ++--
 .../net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c   | 4 ++--
 3 files changed, 4 insertions(+), 11 deletions(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_int.h b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_int.h
index 4960f7d26804..e9e8337f386c 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_int.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_int.h
@@ -220,13 +220,6 @@ enum phy_cal_mode {
 #define BB_MULT_MASK		0x0000ffff
 #define BB_MULT_VALID_MASK	0x80000000
 
-#define CORDIC_AG	39797
-#define	CORDIC_NI	18
-#define	FIXED(X)	((s32)((X) << 16))
-
-#define	FLOAT(X) \
-	(((X) >= 0) ? ((((X) >> 15) + 1) >> 1) : -((((-(X)) >> 15) + 1) >> 1))
-
 #define PHY_CHAIN_TX_DISABLE_TEMP	115
 #define PHY_HYSTERESIS_DELTATEMP	5
 
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c
index 9fb0d9fbd939..e78a93a45741 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c
@@ -3447,8 +3447,8 @@ wlc_lcnphy_start_tx_tone(struct brcms_phy *pi, s32 f_kHz, u16 max_val,
 
 		theta += rot;
 
-		i_samp = (u16) (FLOAT(tone_samp.i * max_val) & 0x3ff);
-		q_samp = (u16) (FLOAT(tone_samp.q * max_val) & 0x3ff);
+		i_samp = (u16)(CORDIC_FLOAT(tone_samp.i * max_val) & 0x3ff);
+		q_samp = (u16)(CORDIC_FLOAT(tone_samp.q * max_val) & 0x3ff);
 		data_buf[t] = (i_samp << 10) | q_samp;
 	}
 
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c
index a57f2711f3c0..f4f5e9044152 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c
@@ -23089,8 +23089,8 @@ wlc_phy_gen_load_samples_nphy(struct brcms_phy *pi, u32 f_kHz, u16 max_val,
 
 		theta += rot;
 
-		tone_buf[t].q = (s32) FLOAT(tone_buf[t].q * max_val);
-		tone_buf[t].i = (s32) FLOAT(tone_buf[t].i * max_val);
+		tone_buf[t].q = (s32)CORDIC_FLOAT(tone_buf[t].q * max_val);
+		tone_buf[t].i = (s32)CORDIC_FLOAT(tone_buf[t].i * max_val);
 	}
 
 	wlc_phy_loadsampletable_nphy(pi, tone_buf, num_samps);

From 8ea3819c0bbef57a51d8abe579e211033e861677 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Mon, 19 Nov 2018 20:01:24 +0200
Subject: [PATCH 120/124] b43: Fix error in cordic routine
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The cordic routine for calculating sines and cosines that was added in
commit 6f98e62a9f1b ("b43: update cordic code to match current specs")
contains an error whereby a quantity declared u32 can in fact go negative.

This problem was detected by Priit Laes who is switching b43 to use the
routine in the library functions of the kernel.

Fixes: 986504540306 ("b43: make cordic common (LP-PHY and N-PHY need it)")
Reported-by: Priit Laes <plaes@plaes.org>
Cc: Rafał Miłecki <zajec5@gmail.com>
Cc: Stable <stable@vger.kernel.org> # 2.6.34
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Priit Laes <plaes@plaes.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/broadcom/b43/phy_common.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/broadcom/b43/phy_common.c b/drivers/net/wireless/broadcom/b43/phy_common.c
index 85f2ca989565..ef3ffa5ad466 100644
--- a/drivers/net/wireless/broadcom/b43/phy_common.c
+++ b/drivers/net/wireless/broadcom/b43/phy_common.c
@@ -616,7 +616,7 @@ struct b43_c32 b43_cordic(int theta)
 	u8 i;
 	s32 tmp;
 	s8 signx = 1;
-	u32 angle = 0;
+	s32 angle = 0;
 	struct b43_c32 ret = { .i = 39797, .q = 0, };
 
 	while (theta > (180 << 16))

From d5a433556d096d8e5b2526695aadbc7fd6ff48c9 Mon Sep 17 00:00:00 2001
From: Priit Laes <plaes@plaes.org>
Date: Mon, 19 Nov 2018 20:01:25 +0200
Subject: [PATCH 121/124] b43: Use cordic algorithm from kernel library

Kernel library has a common cordic algorithm which is identical
to internally implemented one, so use it and drop the duplicate
implementation.

Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Priit Laes <plaes@plaes.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/broadcom/b43/Kconfig     |  1 +
 .../net/wireless/broadcom/b43/phy_common.c    | 47 -------------------
 .../net/wireless/broadcom/b43/phy_common.h    |  9 ----
 drivers/net/wireless/broadcom/b43/phy_lp.c    | 13 ++---
 drivers/net/wireless/broadcom/b43/phy_n.c     | 13 ++---
 5 files changed, 15 insertions(+), 68 deletions(-)

diff --git a/drivers/net/wireless/broadcom/b43/Kconfig b/drivers/net/wireless/broadcom/b43/Kconfig
index fba856032ca5..3e4145747b20 100644
--- a/drivers/net/wireless/broadcom/b43/Kconfig
+++ b/drivers/net/wireless/broadcom/b43/Kconfig
@@ -4,6 +4,7 @@ config B43
 	select BCMA if B43_BCMA
 	select SSB if B43_SSB
 	select FW_LOADER
+	select CORDIC
 	---help---
 	  b43 is a driver for the Broadcom 43xx series wireless devices.
 
diff --git a/drivers/net/wireless/broadcom/b43/phy_common.c b/drivers/net/wireless/broadcom/b43/phy_common.c
index ef3ffa5ad466..98c4fa5b919c 100644
--- a/drivers/net/wireless/broadcom/b43/phy_common.c
+++ b/drivers/net/wireless/broadcom/b43/phy_common.c
@@ -604,50 +604,3 @@ void b43_phy_force_clock(struct b43_wldev *dev, bool force)
 #endif
 	}
 }
-
-/* http://bcm-v4.sipsolutions.net/802.11/PHY/Cordic */
-struct b43_c32 b43_cordic(int theta)
-{
-	static const u32 arctg[] = {
-		2949120, 1740967, 919879, 466945, 234379, 117304,
-		  58666,   29335,  14668,   7334,   3667,   1833,
-		    917,     458,    229,    115,     57,     29,
-	};
-	u8 i;
-	s32 tmp;
-	s8 signx = 1;
-	s32 angle = 0;
-	struct b43_c32 ret = { .i = 39797, .q = 0, };
-
-	while (theta > (180 << 16))
-		theta -= (360 << 16);
-	while (theta < -(180 << 16))
-		theta += (360 << 16);
-
-	if (theta > (90 << 16)) {
-		theta -= (180 << 16);
-		signx = -1;
-	} else if (theta < -(90 << 16)) {
-		theta += (180 << 16);
-		signx = -1;
-	}
-
-	for (i = 0; i <= 17; i++) {
-		if (theta > angle) {
-			tmp = ret.i - (ret.q >> i);
-			ret.q += ret.i >> i;
-			ret.i = tmp;
-			angle += arctg[i];
-		} else {
-			tmp = ret.i + (ret.q >> i);
-			ret.q -= ret.i >> i;
-			ret.i = tmp;
-			angle -= arctg[i];
-		}
-	}
-
-	ret.i *= signx;
-	ret.q *= signx;
-
-	return ret;
-}
diff --git a/drivers/net/wireless/broadcom/b43/phy_common.h b/drivers/net/wireless/broadcom/b43/phy_common.h
index 57a1ad8afa08..4213caca9117 100644
--- a/drivers/net/wireless/broadcom/b43/phy_common.h
+++ b/drivers/net/wireless/broadcom/b43/phy_common.h
@@ -7,13 +7,6 @@
 
 struct b43_wldev;
 
-/* Complex number using 2 32-bit signed integers */
-struct b43_c32 { s32 i, q; };
-
-#define CORDIC_CONVERT(value)	(((value) >= 0) ? \
-				 ((((value) >> 15) + 1) >> 1) : \
-				 -((((-(value)) >> 15) + 1) >> 1))
-
 /* PHY register routing bits */
 #define B43_PHYROUTE			0x0C00 /* PHY register routing bits mask */
 #define  B43_PHYROUTE_BASE		0x0000 /* Base registers */
@@ -450,6 +443,4 @@ bool b43_is_40mhz(struct b43_wldev *dev);
 
 void b43_phy_force_clock(struct b43_wldev *dev, bool force);
 
-struct b43_c32 b43_cordic(int theta);
-
 #endif /* LINUX_B43_PHY_COMMON_H_ */
diff --git a/drivers/net/wireless/broadcom/b43/phy_lp.c b/drivers/net/wireless/broadcom/b43/phy_lp.c
index 6922cbb99a04..46408a560814 100644
--- a/drivers/net/wireless/broadcom/b43/phy_lp.c
+++ b/drivers/net/wireless/broadcom/b43/phy_lp.c
@@ -23,6 +23,7 @@
 
 */
 
+#include <linux/cordic.h>
 #include <linux/slab.h>
 
 #include "b43.h"
@@ -1780,9 +1781,9 @@ static void lpphy_start_tx_tone(struct b43_wldev *dev, s32 freq, u16 max)
 {
 	struct b43_phy_lp *lpphy = dev->phy.lp;
 	u16 buf[64];
-	int i, samples = 0, angle = 0;
+	int i, samples = 0, theta = 0;
 	int rotation = (((36 * freq) / 20) << 16) / 100;
-	struct b43_c32 sample;
+	struct cordic_iq sample;
 
 	lpphy->tx_tone_freq = freq;
 
@@ -1798,10 +1799,10 @@ static void lpphy_start_tx_tone(struct b43_wldev *dev, s32 freq, u16 max)
 	}
 
 	for (i = 0; i < samples; i++) {
-		sample = b43_cordic(angle);
-		angle += rotation;
-		buf[i] = CORDIC_CONVERT((sample.i * max) & 0xFF) << 8;
-		buf[i] |= CORDIC_CONVERT((sample.q * max) & 0xFF);
+		sample = cordic_calc_iq(CORDIC_FIXED(theta));
+		theta += rotation;
+		buf[i] = CORDIC_FLOAT((sample.i * max) & 0xFF) << 8;
+		buf[i] |= CORDIC_FLOAT((sample.q * max) & 0xFF);
 	}
 
 	b43_lptab_write_bulk(dev, B43_LPTAB16(5, 0), samples, buf);
diff --git a/drivers/net/wireless/broadcom/b43/phy_n.c b/drivers/net/wireless/broadcom/b43/phy_n.c
index 44ab080d6518..7d300362b933 100644
--- a/drivers/net/wireless/broadcom/b43/phy_n.c
+++ b/drivers/net/wireless/broadcom/b43/phy_n.c
@@ -23,6 +23,7 @@
 
 */
 
+#include <linux/cordic.h>
 #include <linux/delay.h>
 #include <linux/slab.h>
 #include <linux/types.h>
@@ -1513,7 +1514,7 @@ static void b43_radio_init2055(struct b43_wldev *dev)
 
 /* http://bcm-v4.sipsolutions.net/802.11/PHY/N/LoadSampleTable */
 static int b43_nphy_load_samples(struct b43_wldev *dev,
-					struct b43_c32 *samples, u16 len) {
+					struct cordic_iq *samples, u16 len) {
 	struct b43_phy_n *nphy = dev->phy.n;
 	u16 i;
 	u32 *data;
@@ -1544,7 +1545,7 @@ static u16 b43_nphy_gen_load_samples(struct b43_wldev *dev, u32 freq, u16 max,
 {
 	int i;
 	u16 bw, len, rot, angle;
-	struct b43_c32 *samples;
+	struct cordic_iq *samples;
 
 	bw = b43_is_40mhz(dev) ? 40 : 20;
 	len = bw << 3;
@@ -1561,7 +1562,7 @@ static u16 b43_nphy_gen_load_samples(struct b43_wldev *dev, u32 freq, u16 max,
 		len = bw << 1;
 	}
 
-	samples = kcalloc(len, sizeof(struct b43_c32), GFP_KERNEL);
+	samples = kcalloc(len, sizeof(struct cordic_iq), GFP_KERNEL);
 	if (!samples) {
 		b43err(dev->wl, "allocation for samples generation failed\n");
 		return 0;
@@ -1570,10 +1571,10 @@ static u16 b43_nphy_gen_load_samples(struct b43_wldev *dev, u32 freq, u16 max,
 	angle = 0;
 
 	for (i = 0; i < len; i++) {
-		samples[i] = b43_cordic(angle);
+		samples[i] = cordic_calc_iq(CORDIC_FIXED(angle));
 		angle += rot;
-		samples[i].q = CORDIC_CONVERT(samples[i].q * max);
-		samples[i].i = CORDIC_CONVERT(samples[i].i * max);
+		samples[i].q = CORDIC_FLOAT(samples[i].q * max);
+		samples[i].i = CORDIC_FLOAT(samples[i].i * max);
 	}
 
 	i = b43_nphy_load_samples(dev, samples, len);

From 4282ff17e557d319e1b988fa4f582792cfaf6fff Mon Sep 17 00:00:00 2001
From: Dan Haab <riproute@gmail.com>
Date: Fri, 9 Nov 2018 09:38:55 -0700
Subject: [PATCH 122/124] brcmfmac: support STA info struct v7
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The newest firmwares provide STA info using v7 of the struct. As v7
isn't backward compatible, a union is needed.

Even though brcmfmac does not use any of the new info it's important to
provide the proper struct buffer. Without this change new firmwares will
fallback to the very limited v3 instead of something in between such as
v4.

Signed-off-by: Dan Haab <dan.haab@luxul.com>
Reviewed-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 .../broadcom/brcm80211/brcmfmac/fwil_types.h  | 40 +++++++++++++++----
 1 file changed, 33 insertions(+), 7 deletions(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil_types.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil_types.h
index d5bb81e88762..39ac1bbb6cc0 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil_types.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil_types.h
@@ -176,6 +176,8 @@
 
 #define BRCMF_VHT_CAP_MCS_MAP_NSS_MAX	8
 
+#define BRCMF_HE_CAP_MCS_MAP_NSS_MAX	8
+
 /* MAX_CHUNK_LEN is the maximum length for data passing to firmware in each
  * ioctl. It is relatively small because firmware has small maximum size input
  * playload restriction for ioctls.
@@ -601,13 +603,37 @@ struct brcmf_sta_info_le {
 	__le32 rx_pkts_retried;        /* # rx with retry bit set */
 	__le32 tx_rate_fallback;       /* lowest fallback TX rate */
 
-	/* Fields valid for ver >= 5 */
-	struct {
-		__le32 count;					/* # rates in this set */
-		u8 rates[BRCMF_MAXRATES_IN_SET];		/* rates in 500kbps units w/hi bit set if basic */
-		u8 mcs[BRCMF_MCSSET_LEN];			/* supported mcs index bit map */
-		__le16 vht_mcs[BRCMF_VHT_CAP_MCS_MAP_NSS_MAX];	/* supported mcs index bit map per nss */
-	} rateset_adv;
+	union {
+		struct {
+			struct {
+				__le32 count;					/* # rates in this set */
+				u8 rates[BRCMF_MAXRATES_IN_SET];		/* rates in 500kbps units w/hi bit set if basic */
+				u8 mcs[BRCMF_MCSSET_LEN];			/* supported mcs index bit map */
+				__le16 vht_mcs[BRCMF_VHT_CAP_MCS_MAP_NSS_MAX];	/* supported mcs index bit map per nss */
+			} rateset_adv;
+		} v5;
+
+		struct {
+			__le32 rx_dur_total;	/* total user RX duration (estimated) */
+			__le16 chanspec;	/** chanspec this sta is on */
+			__le16 pad_1;
+			struct {
+				__le16 version;					/* version */
+				__le16 len;					/* length */
+				__le32 count;					/* # rates in this set */
+				u8 rates[BRCMF_MAXRATES_IN_SET];		/* rates in 500kbps units w/hi bit set if basic */
+				u8 mcs[BRCMF_MCSSET_LEN];			/* supported mcs index bit map */
+				__le16 vht_mcs[BRCMF_VHT_CAP_MCS_MAP_NSS_MAX];	/* supported mcs index bit map per nss */
+				__le16 he_mcs[BRCMF_HE_CAP_MCS_MAP_NSS_MAX];	/* supported he mcs index bit map per nss */
+			} rateset_adv;		/* rateset along with mcs index bitmap */
+			__le16 wpauth;		/* authentication type */
+			u8 algo;		/* crypto algorithm */
+			u8 pad_2;
+			__le32 tx_rspec;	/* Rate of last successful tx frame */
+			__le32 rx_rspec;	/* Rate of last successful rx frame */
+			__le32 wnm_cap;		/* wnm capabilities */
+		} v7;
+	};
 };
 
 struct brcmf_chanspec_list {

From 554da3868eb1d7174710c18b4ddd6ff01f6d612c Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Fri, 23 Nov 2018 10:11:48 +0100
Subject: [PATCH 123/124] brcmfmac: Call brcmf_dmi_probe before brcmf_of_probe

ARM systems with UEFI may have both devicetree (of) and DMI data in this
case we end up setting brcmf_mp_device.board_type twice.

In this case we should prefer the devicetree data, because:
1) The devicerree data is more reliable
2) Some ARM systems (e.g. the Raspberry Pi 3 models) support both UEFI and
   classic uboot booting, the devicetree data is always there, so using it
   makes sure we ask for the same nvram file independent of how we booted.

This commit moves the brcmf_dmi_probe call to before the brcmf_of_probe
call, so that the latter can override the value of the first if both are
set.

Fixes: bd1e82bb420a ("brcmfmac: Set board_type from DMI on x86 based ...")
Cc: Peter Robinson <pbrobinson@gmail.com>
Tested-and-reported-by: Peter Robinson <pbrobinson@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
index e738112ed87c..1f1e95a15a17 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
@@ -449,8 +449,8 @@ struct brcmf_mp_device *brcmf_get_module_param(struct device *dev,
 	}
 	if (!found) {
 		/* No platform data for this device, try OF and DMI data */
-		brcmf_of_probe(dev, bus_type, settings);
 		brcmf_dmi_probe(settings, chip, chiprev);
+		brcmf_of_probe(dev, bus_type, settings);
 	}
 	return settings;
 }

From b72c51a58e6d63ef673ac96b8ab5bc98799c5f7b Mon Sep 17 00:00:00 2001
From: Lyude Paul <lyude@redhat.com>
Date: Sat, 24 Nov 2018 17:57:05 -0500
Subject: [PATCH 124/124] brcmfmac: Fix out of bounds memory access during fw
 load

I ended up tracking down some rather nasty issues with f2fs (and other
filesystem modules) constantly crashing on my kernel down to a
combination of out of bounds memory accesses, one of which was coming
from brcmfmac during module load:

[   30.891382] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac4356-sdio for chip BCM4356/2
[   30.894437] ==================================================================
[   30.901581] BUG: KASAN: global-out-of-bounds in brcmf_fw_alloc_request+0x42c/0x480 [brcmfmac]
[   30.909935] Read of size 1 at addr ffff2000024865df by task kworker/6:2/387
[   30.916805]
[   30.918261] CPU: 6 PID: 387 Comm: kworker/6:2 Tainted: G           O      4.20.0-rc3Lyude-Test+ #19
[   30.927251] Hardware name: amlogic khadas-vim2/khadas-vim2, BIOS 2018.07-rc2-armbian 09/11/2018
[   30.935964] Workqueue: events brcmf_driver_register [brcmfmac]
[   30.941641] Call trace:
[   30.944058]  dump_backtrace+0x0/0x3e8
[   30.947676]  show_stack+0x14/0x20
[   30.950968]  dump_stack+0x130/0x1c4
[   30.954406]  print_address_description+0x60/0x25c
[   30.959066]  kasan_report+0x1b4/0x368
[   30.962683]  __asan_report_load1_noabort+0x18/0x20
[   30.967547]  brcmf_fw_alloc_request+0x42c/0x480 [brcmfmac]
[   30.967639]  brcmf_sdio_probe+0x163c/0x2050 [brcmfmac]
[   30.978035]  brcmf_ops_sdio_probe+0x598/0xa08 [brcmfmac]
[   30.983254]  sdio_bus_probe+0x190/0x398
[   30.983270]  really_probe+0x2a0/0xa70
[   30.983296]  driver_probe_device+0x1b4/0x2d8
[   30.994901]  __driver_attach+0x200/0x280
[   30.994914]  bus_for_each_dev+0x10c/0x1a8
[   30.994925]  driver_attach+0x38/0x50
[   30.994935]  bus_add_driver+0x330/0x608
[   30.994953]  driver_register+0x140/0x388
[   31.013965]  sdio_register_driver+0x74/0xa0
[   31.014076]  brcmf_sdio_register+0x14/0x60 [brcmfmac]
[   31.023177]  brcmf_driver_register+0xc/0x18 [brcmfmac]
[   31.023209]  process_one_work+0x654/0x1080
[   31.032266]  worker_thread+0x4f0/0x1308
[   31.032286]  kthread+0x2a8/0x320
[   31.039254]  ret_from_fork+0x10/0x1c
[   31.039269]
[   31.044226] The buggy address belongs to the variable:
[   31.044351]  brcmf_firmware_path+0x11f/0xfffffffffffd3b40 [brcmfmac]
[   31.055601]
[   31.057031] Memory state around the buggy address:
[   31.061800]  ffff200002486480: 04 fa fa fa fa fa fa fa 00 00 00 00 00 00 00 00
[   31.068983]  ffff200002486500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   31.068993] >ffff200002486580: 00 00 00 00 00 00 00 00 fa fa fa fa 00 00 00 00
[   31.068999]                                                     ^
[   31.069017]  ffff200002486600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   31.096521]  ffff200002486680: 00 00 00 00 00 00 00 00 00 00 00 00 fa fa fa fa
[   31.096528] ==================================================================
[   31.096533] Disabling lock debugging due to kernel taint

It appears that when trying to determine the length of the string in the
alternate firmware path, we make the mistake of not handling the case
where the firmware path is empty correctly. Since strlen(mp_path) can
return 0, we'll end up accessing mp_path[-1] when the firmware_path
isn't provided through the module arguments.

So, fix this by just setting the end char to '\0' by default, and only
changing it if we have a non-zero length. Additionally, use strnlen()
with BRCMF_FW_ALTPATH_LEN instead of strlen() just to be extra safe.

Fixes: 2baa3aaee27f ("brcmfmac: introduce brcmf_fw_alloc_request() function")
Cc: Hante Meuleman <hante.meuleman@broadcom.com>
Cc: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Cc: Franky Lin <franky.lin@broadcom.com>
Cc: Arend van Spriel <arend.vanspriel@broadcom.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: Arend Van Spriel <arend.vanspriel@broadcom.com>
Cc: Himanshu Jha <himanshujha199640@gmail.com>
Cc: Dan Haab <dhaab@luxul.com>
Cc: Jia-Shyr Chuang <saint.chuang@cypress.com>
Cc: Ian Molton <ian@mnementh.co.uk>
Cc: <stable@vger.kernel.org> # v4.17+
Signed-off-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 .../net/wireless/broadcom/brcm80211/brcmfmac/firmware.c   | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
index 72d8c0c3c3a1..dad3c1c79038 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
@@ -708,8 +708,9 @@ brcmf_fw_alloc_request(u32 chip, u32 chiprev,
 	struct brcmf_fw_request *fwreq;
 	char chipname[12];
 	const char *mp_path;
+	size_t mp_path_len;
 	u32 i, j;
-	char end;
+	char end = '\0';
 	size_t reqsz;
 
 	for (i = 0; i < table_size; i++) {
@@ -734,7 +735,10 @@ brcmf_fw_alloc_request(u32 chip, u32 chiprev,
 		   mapping_table[i].fw_base, chipname);
 
 	mp_path = brcmf_mp_global.firmware_path;
-	end = mp_path[strlen(mp_path) - 1];
+	mp_path_len = strnlen(mp_path, BRCMF_FW_ALTPATH_LEN);
+	if (mp_path_len)
+		end = mp_path[mp_path_len - 1];
+
 	fwreq->n_items = n_fwnames;
 
 	for (j = 0; j < n_fwnames; j++) {