From 44d6fa90a8fddee49b5749cadbd0add22b1f5559 Mon Sep 17 00:00:00 2001
From: Chun-Yeow Yeoh <yeohchunyeow@gmail.com>
Date: Fri, 7 Mar 2014 10:19:30 +0200
Subject: [PATCH 01/48] ath10k: allow the supported rate change by reassociate
 peer

IBSS mode requires the changing of supported rate. Do this
by reassociate the peer. The investigation shows that if move
from legacy to HT, the rate control won't work after changing
the supported rate. But once changing the supported rate to HT,
user can assign the TxRate in HT mode.

Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/mac.c | 24 +++++++++++++-----------
 drivers/net/wireless/ath/ath10k/wmi.c |  5 +++--
 2 files changed, 16 insertions(+), 13 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 511a2f81e7af..9ad1869fc5d3 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -1524,7 +1524,7 @@ static void ath10k_bss_disassoc(struct ieee80211_hw *hw,
 }
 
 static int ath10k_station_assoc(struct ath10k *ar, struct ath10k_vif *arvif,
-				struct ieee80211_sta *sta)
+				struct ieee80211_sta *sta, bool reassoc)
 {
 	struct wmi_peer_assoc_complete_arg peer_arg;
 	int ret = 0;
@@ -1538,6 +1538,7 @@ static int ath10k_station_assoc(struct ath10k *ar, struct ath10k_vif *arvif,
 		return ret;
 	}
 
+	peer_arg.peer_reassoc = reassoc;
 	ret = ath10k_wmi_peer_assoc(ar, &peer_arg);
 	if (ret) {
 		ath10k_warn("Peer assoc failed for STA %pM vdev %i: %d\n",
@@ -3195,6 +3196,16 @@ static void ath10k_sta_rc_update_wk(struct work_struct *wk)
 				    sta->addr, smps, err);
 	}
 
+	if (changed & IEEE80211_RC_SUPP_RATES_CHANGED) {
+		ath10k_dbg(ATH10K_DBG_MAC, "mac update sta %pM supp rates\n",
+			   sta->addr);
+
+		err = ath10k_station_assoc(ar, arvif, sta, true);
+		if (err)
+			ath10k_warn("Failed to reassociate station: %pM\n",
+				    sta->addr);
+	}
+
 	mutex_unlock(&ar->conf_mutex);
 }
 
@@ -3275,7 +3286,7 @@ static int ath10k_sta_state(struct ieee80211_hw *hw,
 		ath10k_dbg(ATH10K_DBG_MAC, "mac sta %pM associated\n",
 			   sta->addr);
 
-		ret = ath10k_station_assoc(ar, arvif, sta);
+		ret = ath10k_station_assoc(ar, arvif, sta, false);
 		if (ret)
 			ath10k_warn("Failed to associate station %pM for vdev %i: %i\n",
 				    sta->addr, arvif->vdev_id, ret);
@@ -4108,15 +4119,6 @@ static void ath10k_sta_rc_update(struct ieee80211_hw *hw,
 		arsta->smps = smps;
 	}
 
-	if (changed & IEEE80211_RC_SUPP_RATES_CHANGED) {
-		/* FIXME: Not implemented. Probably the only way to do it would
-		 * be to re-assoc the peer. */
-		changed &= ~IEEE80211_RC_SUPP_RATES_CHANGED;
-		ath10k_dbg(ATH10K_DBG_MAC,
-			   "mac sta rc update for %pM: changing supported rates not implemented\n",
-			   sta->addr);
-	}
-
 	arsta->changed |= changed;
 
 	spin_unlock_bh(&ar->data_lock);
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index cb1f7b5bcf4c..d61bdf6db458 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -3456,8 +3456,9 @@ int ath10k_wmi_peer_assoc(struct ath10k *ar,
 		__cpu_to_le32(arg->peer_vht_rates.tx_mcs_set);
 
 	ath10k_dbg(ATH10K_DBG_WMI,
-		   "wmi peer assoc vdev %d addr %pM\n",
-		   arg->vdev_id, arg->addr);
+		   "wmi peer assoc vdev %d addr %pM (%s)\n",
+		   arg->vdev_id, arg->addr,
+		   arg->peer_reassoc ? "reassociate" : "new");
 	return ath10k_wmi_cmd_send(ar, skb, ar->wmi.cmd->peer_assoc_cmdid);
 }
 

From e81bd104822482124923ec6c823abcca8df32451 Mon Sep 17 00:00:00 2001
From: Marek Kwaczynski <marek.kwaczynski@tieto.com>
Date: Tue, 11 Mar 2014 12:58:00 +0200
Subject: [PATCH 02/48] ath10k: add recalc RTS/CTS protection method

Add recalculation of RTS/CTS protection when one or more legacy
stations are connected to ath10k. In this case enable RTS/CTS
protection and set sw retry profile are needed in the FW.
Without this change legacy station is starved and has very low
throughput.

Signed-off-by: Marek Kwaczynski <marek.kwaczynski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.h |  2 +
 drivers/net/wireless/ath/ath10k/mac.c  | 55 ++++++++++++++++++++------
 drivers/net/wireless/ath/ath10k/wmi.h  | 13 ++++++
 3 files changed, 59 insertions(+), 11 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index 0e71979d837c..ad209a61675a 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -260,6 +260,8 @@ struct ath10k_vif {
 	u8 fixed_rate;
 	u8 fixed_nss;
 	u8 force_sgi;
+	bool use_cts_prot;
+	int num_legacy_stations;
 };
 
 struct ath10k_vif_iter {
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 9ad1869fc5d3..9e24ae972ec9 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -739,6 +739,26 @@ static int ath10k_monitor_destroy(struct ath10k *ar)
 	return ret;
 }
 
+static int ath10k_recalc_rtscts_prot(struct ath10k_vif *arvif)
+{
+	struct ath10k *ar = arvif->ar;
+	u32 vdev_param, rts_cts = 0;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	vdev_param = ar->wmi.vdev_param->enable_rtscts;
+
+	if (arvif->use_cts_prot || arvif->num_legacy_stations > 0)
+		rts_cts |= SM(WMI_RTSCTS_ENABLED, WMI_RTSCTS_SET);
+
+	if (arvif->num_legacy_stations > 0)
+		rts_cts |= SM(WMI_RTSCTS_ACROSS_SW_RETRIES,
+			      WMI_RTSCTS_PROFILE);
+
+	return ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
+					 rts_cts);
+}
+
 static int ath10k_start_cac(struct ath10k *ar)
 {
 	int ret;
@@ -1552,6 +1572,16 @@ static int ath10k_station_assoc(struct ath10k *ar, struct ath10k_vif *arvif,
 		return ret;
 	}
 
+	if (!sta->wme) {
+		arvif->num_legacy_stations++;
+		ret  = ath10k_recalc_rtscts_prot(arvif);
+		if (ret) {
+			ath10k_warn("failed to recalculate rts/cts prot for vdev %d: %d\n",
+				    arvif->vdev_id, ret);
+			return ret;
+		}
+	}
+
 	ret = ath10k_install_peer_wep_keys(arvif, sta->addr);
 	if (ret) {
 		ath10k_warn("could not install peer wep keys for vdev %i: %d\n",
@@ -1576,6 +1606,16 @@ static int ath10k_station_disassoc(struct ath10k *ar, struct ath10k_vif *arvif,
 
 	lockdep_assert_held(&ar->conf_mutex);
 
+	if (!sta->wme) {
+		arvif->num_legacy_stations--;
+		ret = ath10k_recalc_rtscts_prot(arvif);
+		if (ret) {
+			ath10k_warn("failed to recalculate rts/cts prot for vdev %d: %d\n",
+				    arvif->vdev_id, ret);
+			return ret;
+		}
+	}
+
 	ret = ath10k_clear_peer_keys(arvif, sta->addr);
 	if (ret) {
 		ath10k_warn("could not clear all peer wep keys for vdev %i: %d\n",
@@ -2869,20 +2909,13 @@ static void ath10k_bss_info_changed(struct ieee80211_hw *hw,
 		ath10k_control_beaconing(arvif, info);
 
 	if (changed & BSS_CHANGED_ERP_CTS_PROT) {
-		u32 cts_prot;
-		if (info->use_cts_prot)
-			cts_prot = 1;
-		else
-			cts_prot = 0;
-
+		arvif->use_cts_prot = info->use_cts_prot;
 		ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %d cts_prot %d\n",
-			   arvif->vdev_id, cts_prot);
+			   arvif->vdev_id, info->use_cts_prot);
 
-		vdev_param = ar->wmi.vdev_param->enable_rtscts;
-		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
-						cts_prot);
+		ret = ath10k_recalc_rtscts_prot(arvif);
 		if (ret)
-			ath10k_warn("Failed to set CTS prot for vdev %d: %d\n",
+			ath10k_warn("Failed to recalculate rts/cts prot for vdev %d: %d\n",
 				    arvif->vdev_id, ret);
 	}
 
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index 4fcc96aa9513..e78a7adb66a4 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -2210,6 +2210,19 @@ enum ath10k_protmode {
 	ATH10K_PROT_RTSCTS   = 2,    /* RTS-CTS */
 };
 
+enum wmi_rtscts_profile {
+	WMI_RTSCTS_FOR_NO_RATESERIES = 0,
+	WMI_RTSCTS_FOR_SECOND_RATESERIES,
+	WMI_RTSCTS_ACROSS_SW_RETRIES
+};
+
+#define WMI_RTSCTS_ENABLED		1
+#define WMI_RTSCTS_SET_MASK		0x0f
+#define WMI_RTSCTS_SET_LSB		0
+
+#define WMI_RTSCTS_PROFILE_MASK		0xf0
+#define WMI_RTSCTS_PROFILE_LSB		4
+
 enum wmi_beacon_gen_mode {
 	WMI_BEACON_STAGGERED_MODE = 0,
 	WMI_BEACON_BURST_MODE = 1

From 31b9cc9a873dcab161999622314f98a75d838975 Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Tue, 11 Mar 2014 12:58:00 +0200
Subject: [PATCH 03/48] ath6kl: fix struct hif_scatter_req list handling

Jason noticed that with Yocto GCC 4.8.1 ath6kl crashes with this iperf command:

iperf -c $TARGET_IP -i 5 -t 50 -w 1M

The crash was:

Unable to handle kernel paging request at virtual address 1a480000
pgd = 80004000
[1a480000] *pgd=00000000
Internal error: Oops: 805 [#1] SMP ARM
Modules linked in: ath6kl_sdio ath6kl_core [last unloaded: ath6kl_core]
CPU: 0 PID: 1953 Comm: kworker/u4:0 Not tainted 3.10.9-1.0.0_alpha+dbf364b #1
Workqueue: ath6kl ath6kl_sdio_write_async_work [ath6kl_sdio]
task: dcc9a680 ti: dc9ae000 task.ti: dc9ae000
PC is at v7_dma_clean_range+0x20/0x38
LR is at dma_cache_maint_page+0x50/0x54
pc : [<8001a6f8>]    lr : [<800170fc>]    psr: 20000093
sp : dc9afcf8  ip : 8001a748  fp : 00000004
r10: 00000000  r9 : 00000001  r8 : 00000000
r7 : 00000001  r6 : 00000000  r5 : 80cb7000  r4 : 03f9a480
r3 : 0000001f  r2 : 00000020  r1 : 1a480000  r0 : 1a480000
Flags: nzCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
Control: 10c53c7d  Table: 6cc5004a  DAC: 00000015
Process kworker/u4:0 (pid: 1953, stack limit = 0xdc9ae238)
Stack: (0xdc9afcf8 to 0xdc9b0000)
fce0:                                                       80c9b29c 00000000
fd00: 00000000 80017134 8001a748 dc302ac0 00000000 00000000 dc454a00 80c12ed8
fd20: dc115410 80017238 00000000 dc454a10 00000001 80017588 00000001 00000000
fd40: 00000000 dc302ac0 dc9afe38 dc9afe68 00000004 80c12ed8 00000000 dc454a00
fd60: 00000004 80436f88 00000000 00000000 00000600 0000ffff 0000000c 80c113c4
fd80: 80c9b29c 00000001 00000004 dc115470 60000013 dc302ac0 dc46e000 dc302800
fda0: dc9afe10 dc302b78 60000013 dc302ac0 dc46e000 00000035 dc46e5b0 80438c90
fdc0: dc9afe10 dc302800 dc302800 dc9afe68 dc9afe38 80424cb4 00000005 dc9afe10
fde0: dc9afe20 80424de8 dc9afe10 dc302800 dc46e910 80424e90 dc473c00 dc454f00
fe00: 000001b5 7f619d64 dcc7c830 00000000 00000000 dc9afe38 dc9afe68 00000000
fe20: 00000000 00000000 dc9afe28 dc9afe28 80424d80 00000000 00000035 9cac0034
fe40: 00000000 00000000 00000000 00000000 000001b5 00000000 00000000 00000000
fe60: dc9afe68 dc9afe10 3b9aca00 00000000 00000080 00000034 00000000 00000100
fe80: 00000000 00000000 dc9afe10 00000004 dc454a00 00000000 dc46e010 dc46e96c
fea0: dc46e000 dc46e964 00200200 00100100 dc46e910 7f619ec0 00000600 80c0e770
fec0: dc15a900 dcc7c838 00000000 dc46e954 8042d434 dcc44680 dc46e954 dc004400
fee0: dc454500 00000000 00000000 dc9ae038 dc004400 8003c450 dcc44680 dc004414
ff00: dc46e954 dc454500 00000001 dcc44680 dc004414 dcc44698 dc9ae000 dc9ae030
ff20: 00000001 dc9ae000 dc004400 8003d158 8003d020 00000000 00000000 80c53941
ff40: dc9aff64 dcb71ea0 00000000 dcc44680 8003d020 00000000 00000000 00000000
ff60: 00000000 80042480 00000000 00000000 000000f8 dcc44680 00000000 00000000
ff80: dc9aff80 dc9aff80 00000000 00000000 dc9aff90 dc9aff90 dc9affac dcb71ea0
ffa0: 800423cc 00000000 00000000 8000e018 00000000 00000000 00000000 00000000
ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ffe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[<8001a6f8>] (v7_dma_clean_range+0x20/0x38) from [<800170fc>] (dma_cache_maint_page+0x50/0x54)
[<800170fc>] (dma_cache_maint_page+0x50/0x54) from [<80017134>] (__dma_page_cpu_to_dev+0x34/0x9c)
[<80017134>] (__dma_page_cpu_to_dev+0x34/0x9c) from [<80017238>] (arm_dma_map_page+0x64/0x68)
[<80017238>] (arm_dma_map_page+0x64/0x68) from [<80017588>] (arm_dma_map_sg+0x7c/0xf4)
[<80017588>] (arm_dma_map_sg+0x7c/0xf4) from [<80436f88>] (sdhci_send_command+0x894/0xe00)
[<80436f88>] (sdhci_send_command+0x894/0xe00) from [<80438c90>] (sdhci_request+0xc0/0x1ec)
[<80438c90>] (sdhci_request+0xc0/0x1ec) from [<80424cb4>] (mmc_start_request+0xb8/0xd4)
[<80424cb4>] (mmc_start_request+0xb8/0xd4) from [<80424de8>] (__mmc_start_req+0x60/0x84)
[<80424de8>] (__mmc_start_req+0x60/0x84) from [<80424e90>] (mmc_wait_for_req+0x10/0x20)
[<80424e90>] (mmc_wait_for_req+0x10/0x20) from [<7f619d64>] (ath6kl_sdio_scat_rw.isra.10+0x1dc/0x240 [ath6kl_sdio])
[<7f619d64>] (ath6kl_sdio_scat_rw.isra.10+0x1dc/0x240 [ath6kl_sdio]) from [<7f619ec0>] (ath6kl_sdio_write_async_work+0x5c/0x104 [ath6kl_sdio])
[<7f619ec0>] (ath6kl_sdio_write_async_work+0x5c/0x104 [ath6kl_sdio]) from [<8003c450>] (process_one_work+0x10c/0x370)
[<8003c450>] (process_one_work+0x10c/0x370) from [<8003d158>] (worker_thread+0x138/0x3fc)
[<8003d158>] (worker_thread+0x138/0x3fc) from [<80042480>] (kthread+0xb4/0xb8)
[<80042480>] (kthread+0xb4/0xb8) from [<8000e018>] (ret_from_fork+0x14/0x3c)
Code: e1a02312 e2423001 e1c00003 f57ff04f (ee070f3a)
---[ end trace 0c038f0b8e0b67a3 ]---
Kernel panic - not syncing: Fatal exception

Jason's analysis:

  "The GCC 4.8.1 compiler will not do the for-loop till scat_entries, instead,
   it only run one round loop. This may be caused by that the GCC 4.8.1 thought
   that the scat_list only have one item and then no need to do full iteration,
   but this is simply wrong by looking at the assebly code. This will cause the sg
   buffer not get set when scat_entries > 1 and thus lead to kernel panic.

   Note: This issue not observed with GCC 4.7.2, only found on the GCC 4.8.1)"

Fix this by using the normal [0] style for defining unknown number of list
entries following the struct. This also fixes corruption with scat_q_depth, which
was mistankely added to the end of struct and overwritten if there were more
than item in the scat list.

Reported-by: Jason Liu <r64343@freescale.com>
Tested-by: Jason Liu <r64343@freescale.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath6kl/hif.h  | 4 ++--
 drivers/net/wireless/ath/ath6kl/sdio.c | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath6kl/hif.h b/drivers/net/wireless/ath/ath6kl/hif.h
index 61f6b21fb0ae..dc6bd8cd9b83 100644
--- a/drivers/net/wireless/ath/ath6kl/hif.h
+++ b/drivers/net/wireless/ath/ath6kl/hif.h
@@ -197,9 +197,9 @@ struct hif_scatter_req {
 	/* bounce buffer for upper layers to copy to/from */
 	u8 *virt_dma_buf;
 
-	struct hif_scatter_item scat_list[1];
-
 	u32 scat_q_depth;
+
+	struct hif_scatter_item scat_list[0];
 };
 
 struct ath6kl_irq_proc_registers {
diff --git a/drivers/net/wireless/ath/ath6kl/sdio.c b/drivers/net/wireless/ath/ath6kl/sdio.c
index 7126bdd4236c..6bf15a331714 100644
--- a/drivers/net/wireless/ath/ath6kl/sdio.c
+++ b/drivers/net/wireless/ath/ath6kl/sdio.c
@@ -348,7 +348,7 @@ static int ath6kl_sdio_alloc_prep_scat_req(struct ath6kl_sdio *ar_sdio,
 	int i, scat_req_sz, scat_list_sz, size;
 	u8 *virt_buf;
 
-	scat_list_sz = (n_scat_entry - 1) * sizeof(struct hif_scatter_item);
+	scat_list_sz = n_scat_entry * sizeof(struct hif_scatter_item);
 	scat_req_sz = sizeof(*s_req) + scat_list_sz;
 
 	if (!virt_scat)

From 3629fa14388dbfcb150f5178a018b7eb265a1189 Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Tue, 11 Mar 2014 12:58:01 +0200
Subject: [PATCH 04/48] ath6kl: fix blank lines before and after braces

Fixes checkpatch warnings:

CHECK: Blank lines aren't necessary after an open brace '{'
CHECK: Blank lines aren't necessary before a close brace '}'

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath6kl/cfg80211.c |  3 ---
 drivers/net/wireless/ath/ath6kl/debug.c    |  4 ----
 drivers/net/wireless/ath/ath6kl/debug.h    |  2 +-
 drivers/net/wireless/ath/ath6kl/hif.c      |  3 ---
 drivers/net/wireless/ath/ath6kl/htc_mbox.c | 12 ------------
 drivers/net/wireless/ath/ath6kl/htc_pipe.c | 10 +---------
 drivers/net/wireless/ath/ath6kl/init.c     |  1 -
 drivers/net/wireless/ath/ath6kl/main.c     |  4 ----
 drivers/net/wireless/ath/ath6kl/sdio.c     |  4 ----
 drivers/net/wireless/ath/ath6kl/txrx.c     |  3 ---
 drivers/net/wireless/ath/ath6kl/usb.c      |  2 --
 drivers/net/wireless/ath/ath6kl/wmi.c      |  6 ------
 drivers/net/wireless/ath/ath6kl/wmi.h      |  1 -
 13 files changed, 2 insertions(+), 53 deletions(-)

diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c
index c2c6f4604958..9e3af815a4f3 100644
--- a/drivers/net/wireless/ath/ath6kl/cfg80211.c
+++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c
@@ -970,7 +970,6 @@ static int ath6kl_set_probed_ssids(struct ath6kl *ar,
 					  ssid_list[i].flag,
 					  ssid_list[i].ssid.ssid_len,
 					  ssid_list[i].ssid.ssid);
-
 	}
 
 	/* Make sure no old entries are left behind */
@@ -1897,7 +1896,6 @@ static int ath6kl_wow_usr(struct ath6kl *ar, struct ath6kl_vif *vif,
 
 	/* Configure the patterns that we received from the user. */
 	for (i = 0; i < wow->n_patterns; i++) {
-
 		/*
 		 * Convert given nl80211 specific mask value to equivalent
 		 * driver specific mask value and send it to the chip along
@@ -2897,7 +2895,6 @@ static int ath6kl_start_ap(struct wiphy *wiphy, struct net_device *dev,
 	}
 
 	if (info->inactivity_timeout) {
-
 		inactivity_timeout = info->inactivity_timeout;
 
 		if (ar->hw.flags & ATH6KL_HW_AP_INACTIVITY_MINS)
diff --git a/drivers/net/wireless/ath/ath6kl/debug.c b/drivers/net/wireless/ath/ath6kl/debug.c
index dbfd17d0a5fa..55c4064dd506 100644
--- a/drivers/net/wireless/ath/ath6kl/debug.c
+++ b/drivers/net/wireless/ath/ath6kl/debug.c
@@ -172,7 +172,6 @@ void ath6kl_dump_registers(struct ath6kl_device *dev,
 			   struct ath6kl_irq_proc_registers *irq_proc_reg,
 			   struct ath6kl_irq_enable_reg *irq_enable_reg)
 {
-
 	ath6kl_dbg(ATH6KL_DBG_IRQ, ("<------- Register Table -------->\n"));
 
 	if (irq_proc_reg != NULL) {
@@ -219,7 +218,6 @@ void ath6kl_dump_registers(struct ath6kl_device *dev,
 				   "GMBOX lookahead alias 1:   0x%x\n",
 				   irq_proc_reg->rx_gmbox_lkahd_alias[1]);
 		}
-
 	}
 
 	if (irq_enable_reg != NULL) {
@@ -1396,7 +1394,6 @@ static ssize_t ath6kl_create_qos_write(struct file *file,
 						const char __user *user_buf,
 						size_t count, loff_t *ppos)
 {
-
 	struct ath6kl *ar = file->private_data;
 	struct ath6kl_vif *vif;
 	char buf[200];
@@ -1575,7 +1572,6 @@ static ssize_t ath6kl_delete_qos_write(struct file *file,
 				const char __user *user_buf,
 				size_t count, loff_t *ppos)
 {
-
 	struct ath6kl *ar = file->private_data;
 	struct ath6kl_vif *vif;
 	char buf[100];
diff --git a/drivers/net/wireless/ath/ath6kl/debug.h b/drivers/net/wireless/ath/ath6kl/debug.h
index ca9ba005f287..e194c10d9f00 100644
--- a/drivers/net/wireless/ath/ath6kl/debug.h
+++ b/drivers/net/wireless/ath/ath6kl/debug.h
@@ -97,8 +97,8 @@ static inline void ath6kl_dump_registers(struct ath6kl_device *dev,
 		struct ath6kl_irq_proc_registers *irq_proc_reg,
 		struct ath6kl_irq_enable_reg *irq_en_reg)
 {
-
 }
+
 static inline void dump_cred_dist_stats(struct htc_target *target)
 {
 }
diff --git a/drivers/net/wireless/ath/ath6kl/hif.c b/drivers/net/wireless/ath/ath6kl/hif.c
index fea7709b5dda..18c070850a09 100644
--- a/drivers/net/wireless/ath/ath6kl/hif.c
+++ b/drivers/net/wireless/ath/ath6kl/hif.c
@@ -37,7 +37,6 @@ static int ath6kl_hif_cp_scat_dma_buf(struct hif_scatter_req *req,
 	buf = req->virt_dma_buf;
 
 	for (i = 0; i < req->scat_entries; i++) {
-
 		if (from_dma)
 			memcpy(req->scat_list[i].buf, buf,
 			       req->scat_list[i].len);
@@ -116,7 +115,6 @@ static void ath6kl_hif_dump_fw_crash(struct ath6kl *ar)
 			    le32_to_cpu(regdump_val[i + 2]),
 			    le32_to_cpu(regdump_val[i + 3]));
 	}
-
 }
 
 static int ath6kl_hif_proc_dbg_intr(struct ath6kl_device *dev)
@@ -701,5 +699,4 @@ int ath6kl_hif_setup(struct ath6kl_device *dev)
 
 fail_setup:
 	return status;
-
 }
diff --git a/drivers/net/wireless/ath/ath6kl/htc_mbox.c b/drivers/net/wireless/ath/ath6kl/htc_mbox.c
index 65e5b719093d..1d713dcbad38 100644
--- a/drivers/net/wireless/ath/ath6kl/htc_mbox.c
+++ b/drivers/net/wireless/ath/ath6kl/htc_mbox.c
@@ -129,7 +129,6 @@ static void ath6kl_credit_init(struct ath6kl_htc_credit_info *cred_info,
 			count = (count * 3) >> 2;
 			count = max(count, cur_ep_dist->cred_per_msg);
 			cur_ep_dist->cred_norm = count;
-
 		}
 
 		ath6kl_dbg(ATH6KL_DBG_CREDIT,
@@ -549,7 +548,6 @@ static int htc_check_credits(struct htc_target *target,
 			     enum htc_endpoint_id eid, unsigned int len,
 			     int *req_cred)
 {
-
 	*req_cred = (len > target->tgt_cred_sz) ?
 		     DIV_ROUND_UP(len, target->tgt_cred_sz) : 1;
 
@@ -608,7 +606,6 @@ static void ath6kl_htc_tx_pkts_get(struct htc_target *target,
 	unsigned int len;
 
 	while (true) {
-
 		flags = 0;
 
 		if (list_empty(&endpoint->txq))
@@ -889,7 +886,6 @@ static void ath6kl_htc_tx_from_queue(struct htc_target *target,
 		ac = target->dev->ar->ep2ac_map[endpoint->eid];
 
 	while (true) {
-
 		if (list_empty(&endpoint->txq))
 			break;
 
@@ -1190,7 +1186,6 @@ static void ath6kl_htc_mbox_flush_txep(struct htc_target *target,
 		list_add_tail(&packet->list, &container);
 		htc_tx_complete(endpoint, &container);
 	}
-
 }
 
 static void ath6kl_htc_flush_txep_all(struct htc_target *target)
@@ -1394,7 +1389,6 @@ static int ath6kl_htc_rx_setup(struct htc_target *target,
 
 	ep_cb = ep->ep_cb;
 	for (j = 0; j < n_msg; j++) {
-
 		/*
 		 * Reset flag, any packets allocated using the
 		 * rx_alloc() API cannot be recycled on
@@ -1487,7 +1481,6 @@ static int ath6kl_htc_rx_alloc(struct htc_target *target,
 	spin_lock_bh(&target->rx_lock);
 
 	for (i = 0; i < msg; i++) {
-
 		htc_hdr = (struct htc_frame_hdr *)&lk_ahds[i];
 
 		if (htc_hdr->eid >= ENDPOINT_MAX) {
@@ -1708,7 +1701,6 @@ static int htc_parse_trailer(struct htc_target *target,
 		lk_ahd = (struct htc_lookahead_report *) record_buf;
 		if ((lk_ahd->pre_valid == ((~lk_ahd->post_valid) & 0xFF)) &&
 		    next_lk_ahds) {
-
 			ath6kl_dbg(ATH6KL_DBG_HTC,
 				   "htc rx lk_ahd found pre_valid 0x%x post_valid 0x%x\n",
 				   lk_ahd->pre_valid, lk_ahd->post_valid);
@@ -1755,7 +1747,6 @@ static int htc_parse_trailer(struct htc_target *target,
 	}
 
 	return 0;
-
 }
 
 static int htc_proc_trailer(struct htc_target *target,
@@ -1776,7 +1767,6 @@ static int htc_proc_trailer(struct htc_target *target,
 	status = 0;
 
 	while (len > 0) {
-
 		if (len < sizeof(struct htc_record_hdr)) {
 			status = -ENOMEM;
 			break;
@@ -2098,7 +2088,6 @@ static int ath6kl_htc_rx_fetch(struct htc_target *target,
 		}
 
 		if (!fetched_pkts) {
-
 			packet = list_first_entry(rx_pktq, struct htc_packet,
 						   list);
 
@@ -2173,7 +2162,6 @@ int ath6kl_htc_rxmsg_pending_handler(struct htc_target *target,
 	look_aheads[0] = msg_look_ahead;
 
 	while (true) {
-
 		/*
 		 * First lookahead sets the expected endpoint IDs for all
 		 * packets in a bundle.
diff --git a/drivers/net/wireless/ath/ath6kl/htc_pipe.c b/drivers/net/wireless/ath/ath6kl/htc_pipe.c
index 67aa924ed8b3..756fe52a12c8 100644
--- a/drivers/net/wireless/ath/ath6kl/htc_pipe.c
+++ b/drivers/net/wireless/ath/ath6kl/htc_pipe.c
@@ -137,7 +137,6 @@ static void get_htc_packet_credit_based(struct htc_target *target,
 			credits_required = 0;
 
 		} else {
-
 			if (ep->cred_dist.credits < credits_required)
 				break;
 
@@ -169,7 +168,6 @@ static void get_htc_packet_credit_based(struct htc_target *target,
 		/* queue this packet into the caller's queue */
 		list_add_tail(&packet->list, queue);
 	}
-
 }
 
 static void get_htc_packet(struct htc_target *target,
@@ -279,7 +277,6 @@ static int htc_issue_packets(struct htc_target *target,
 			list_add(&packet->list, pkt_queue);
 			break;
 		}
-
 	}
 
 	if (status != 0) {
@@ -385,7 +382,6 @@ static enum htc_send_queue_result htc_try_send(struct htc_target *target,
 			 */
 			list_for_each_entry_safe(packet, tmp_pkt,
 						 txq, list) {
-
 				ath6kl_dbg(ATH6KL_DBG_HTC,
 					   "%s: Indicat overflowed TX pkts: %p\n",
 					   __func__, packet);
@@ -403,7 +399,6 @@ static enum htc_send_queue_result htc_try_send(struct htc_target *target,
 					list_move_tail(&packet->list,
 						       &send_queue);
 				}
-
 			}
 
 			if (list_empty(&send_queue)) {
@@ -454,7 +449,6 @@ static enum htc_send_queue_result htc_try_send(struct htc_target *target,
 	 * enough transmit resources.
 	 */
 	while (true) {
-
 		if (get_queue_depth(&ep->txq) == 0)
 			break;
 
@@ -495,8 +489,8 @@ static enum htc_send_queue_result htc_try_send(struct htc_target *target,
 		}
 
 		spin_lock_bh(&target->tx_lock);
-
 	}
+
 	/* done with this endpoint, we can clear the count */
 	ep->tx_proc_cnt = 0;
 	spin_unlock_bh(&target->tx_lock);
@@ -1106,7 +1100,6 @@ static int ath6kl_htc_pipe_rx_complete(struct ath6kl *ar, struct sk_buff *skb,
 	dev_kfree_skb(skb);
 
 	return status;
-
 }
 
 static void htc_flush_rx_queue(struct htc_target *target,
@@ -1258,7 +1251,6 @@ static int ath6kl_htc_pipe_conn_service(struct htc_target *target,
 		tx_alloc = 0;
 
 	} else {
-
 		tx_alloc = htc_get_credit_alloc(target, conn_req->svc_id);
 		if (tx_alloc == 0) {
 			status = -ENOMEM;
diff --git a/drivers/net/wireless/ath/ath6kl/init.c b/drivers/net/wireless/ath/ath6kl/init.c
index 4f316bdcbab5..d5ef211f261c 100644
--- a/drivers/net/wireless/ath/ath6kl/init.c
+++ b/drivers/net/wireless/ath/ath6kl/init.c
@@ -1192,7 +1192,6 @@ static int ath6kl_upload_board_file(struct ath6kl *ar)
 
 	if (board_ext_address &&
 	    ar->fw_board_len == (board_data_size + board_ext_data_size)) {
-
 		/* write extended board data */
 		ath6kl_dbg(ATH6KL_DBG_BOOT,
 			   "writing extended board data to 0x%x (%d B)\n",
diff --git a/drivers/net/wireless/ath/ath6kl/main.c b/drivers/net/wireless/ath/ath6kl/main.c
index 5839fc23bdc7..fcaab0f56e70 100644
--- a/drivers/net/wireless/ath/ath6kl/main.c
+++ b/drivers/net/wireless/ath/ath6kl/main.c
@@ -571,7 +571,6 @@ void ath6kl_scan_complete_evt(struct ath6kl_vif *vif, int status)
 
 static int ath6kl_commit_ch_switch(struct ath6kl_vif *vif, u16 channel)
 {
-
 	struct ath6kl *ar = vif->ar;
 
 	vif->profile.ch = cpu_to_le16(channel);
@@ -600,7 +599,6 @@ static int ath6kl_commit_ch_switch(struct ath6kl_vif *vif, u16 channel)
 
 static void ath6kl_check_ch_switch(struct ath6kl *ar, u16 channel)
 {
-
 	struct ath6kl_vif *vif;
 	int res = 0;
 
@@ -694,7 +692,6 @@ void ath6kl_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, bool ismcast)
 					     tsc, GFP_KERNEL);
 	} else
 		ath6kl_cfg80211_tkip_micerr_event(vif, keyid, ismcast);
-
 }
 
 static void ath6kl_update_target_stats(struct ath6kl_vif *vif, u8 *ptr, u32 len)
@@ -1146,7 +1143,6 @@ static int ath6kl_set_features(struct net_device *dev,
 			dev->features = features | NETIF_F_RXCSUM;
 			return err;
 		}
-
 	}
 
 	return err;
diff --git a/drivers/net/wireless/ath/ath6kl/sdio.c b/drivers/net/wireless/ath/ath6kl/sdio.c
index 6bf15a331714..50e886a88dfc 100644
--- a/drivers/net/wireless/ath/ath6kl/sdio.c
+++ b/drivers/net/wireless/ath/ath6kl/sdio.c
@@ -656,7 +656,6 @@ static void ath6kl_sdio_scatter_req_add(struct ath6kl *ar,
 	list_add_tail(&s_req->list, &ar_sdio->scat_req);
 
 	spin_unlock_bh(&ar_sdio->scat_lock);
-
 }
 
 /* scatter gather read write request */
@@ -856,7 +855,6 @@ static int ath6kl_sdio_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow)
 
 	if (ar->suspend_mode == WLAN_POWER_STATE_WOW ||
 	    (!ar->suspend_mode && wow)) {
-
 		ret = ath6kl_set_sdio_pm_caps(ar);
 		if (ret)
 			goto cut_pwr;
@@ -878,7 +876,6 @@ static int ath6kl_sdio_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow)
 
 	if (ar->suspend_mode == WLAN_POWER_STATE_DEEP_SLEEP ||
 	    !ar->suspend_mode || try_deepsleep) {
-
 		flags = sdio_get_host_pm_caps(func);
 		if (!(flags & MMC_PM_KEEP_POWER))
 			goto cut_pwr;
@@ -1061,7 +1058,6 @@ static int ath6kl_sdio_bmi_credits(struct ath6kl *ar)
 
 	timeout = jiffies + msecs_to_jiffies(BMI_COMMUNICATION_TIMEOUT);
 	while (time_before(jiffies, timeout) && !ar->bmi.cmd_credits) {
-
 		/*
 		 * Hit the credit counter with a 4-byte access, the first byte
 		 * read will hit the counter and cause a decrement, while the
diff --git a/drivers/net/wireless/ath/ath6kl/txrx.c b/drivers/net/wireless/ath/ath6kl/txrx.c
index ebb24045a8ae..cf27a7107dbb 100644
--- a/drivers/net/wireless/ath/ath6kl/txrx.c
+++ b/drivers/net/wireless/ath/ath6kl/txrx.c
@@ -702,7 +702,6 @@ void ath6kl_tx_complete(struct htc_target *target,
 
 	/* reap completed packets */
 	while (!list_empty(packet_queue)) {
-
 		packet = list_first_entry(packet_queue, struct htc_packet,
 					  list);
 		list_del(&packet->list);
@@ -1265,7 +1264,6 @@ static void ath6kl_uapsd_trigger_frame_rx(struct ath6kl_vif *vif,
 	is_apsdq_empty_at_start = is_apsdq_empty;
 
 	while ((!is_apsdq_empty) && (num_frames_to_deliver)) {
-
 		spin_lock_bh(&conn->psq_lock);
 		skb = skb_dequeue(&conn->apsdq);
 		is_apsdq_empty = skb_queue_empty(&conn->apsdq);
@@ -1766,7 +1764,6 @@ void aggr_conn_init(struct ath6kl_vif *vif, struct aggr_info *aggr_info,
 		skb_queue_head_init(&rxtid->q);
 		spin_lock_init(&rxtid->lock);
 	}
-
 }
 
 struct aggr_info *aggr_init(struct ath6kl_vif *vif)
diff --git a/drivers/net/wireless/ath/ath6kl/usb.c b/drivers/net/wireless/ath/ath6kl/usb.c
index 56c3fd5cef65..3afc5a463d06 100644
--- a/drivers/net/wireless/ath/ath6kl/usb.c
+++ b/drivers/net/wireless/ath/ath6kl/usb.c
@@ -236,7 +236,6 @@ static void ath6kl_usb_free_pipe_resources(struct ath6kl_usb_pipe *pipe)
 			break;
 		kfree(urb_context);
 	}
-
 }
 
 static void ath6kl_usb_cleanup_pipe_resources(struct ath6kl_usb *ar_usb)
@@ -245,7 +244,6 @@ static void ath6kl_usb_cleanup_pipe_resources(struct ath6kl_usb *ar_usb)
 
 	for (i = 0; i < ATH6KL_USB_PIPE_MAX; i++)
 		ath6kl_usb_free_pipe_resources(&ar_usb->pipes[i]);
-
 }
 
 static u8 ath6kl_usb_get_logical_pipe_num(struct ath6kl_usb *ar_usb,
diff --git a/drivers/net/wireless/ath/ath6kl/wmi.c b/drivers/net/wireless/ath/ath6kl/wmi.c
index 8b4ce28e3ce8..34c49547f09c 100644
--- a/drivers/net/wireless/ath/ath6kl/wmi.c
+++ b/drivers/net/wireless/ath/ath6kl/wmi.c
@@ -936,7 +936,6 @@ ath6kl_regd_find_country_by_rd(u16 regdmn)
 
 static void ath6kl_wmi_regdomain_event(struct wmi *wmi, u8 *datap, int len)
 {
-
 	struct ath6kl_wmi_regdomain *ev;
 	struct country_code_to_enum_rd *country = NULL;
 	struct reg_dmn_pair_mapping *regpair = NULL;
@@ -949,7 +948,6 @@ static void ath6kl_wmi_regdomain_event(struct wmi *wmi, u8 *datap, int len)
 	if ((reg_code >> ATH6KL_COUNTRY_RD_SHIFT) & COUNTRY_ERD_FLAG)
 		country = ath6kl_regd_find_country((u16) reg_code);
 	else if (!(((u16) reg_code & WORLD_SKU_MASK) == WORLD_SKU_PREFIX)) {
-
 		regpair = ath6kl_get_regpair((u16) reg_code);
 		country = ath6kl_regd_find_country_by_rd((u16) reg_code);
 		if (regpair)
@@ -1499,7 +1497,6 @@ static int ath6kl_wmi_cac_event_rx(struct wmi *wmi, u8 *datap, int len,
 
 	if ((reply->cac_indication == CAC_INDICATION_ADMISSION_RESP) &&
 	    (reply->status_code != IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED)) {
-
 		ts = (struct ieee80211_tspec_ie *) &(reply->tspec_suggestion);
 		tsinfo = le16_to_cpu(ts->tsinfo);
 		tsid = (tsinfo >> IEEE80211_WMM_IE_TSPEC_TID_SHIFT) &
@@ -1530,7 +1527,6 @@ static int ath6kl_wmi_cac_event_rx(struct wmi *wmi, u8 *datap, int len,
 	 * for delete qos stream from AP
 	 */
 	else if (reply->cac_indication == CAC_INDICATION_DELETE) {
-
 		ts = (struct ieee80211_tspec_ie *) &(reply->tspec_suggestion);
 		tsinfo = le16_to_cpu(ts->tsinfo);
 		ts_id = ((tsinfo >> IEEE80211_WMM_IE_TSPEC_TID_SHIFT) &
@@ -2479,7 +2475,6 @@ static int ath6kl_wmi_sync_point(struct wmi *wmi, u8 if_idx)
 		goto free_data_skb;
 
 	for (index = 0; index < num_pri_streams; index++) {
-
 		if (WARN_ON(!data_sync_bufs[index].skb))
 			goto free_data_skb;
 
@@ -2704,7 +2699,6 @@ static void ath6kl_wmi_relinquish_implicit_pstream_credits(struct wmi *wmi)
 
 	for (i = 0; i < WMM_NUM_AC; i++) {
 		if (stream_exist & (1 << i)) {
-
 			/*
 			 * FIXME: Is this lock & unlock inside
 			 * for loop correct? may need rework.
diff --git a/drivers/net/wireless/ath/ath6kl/wmi.h b/drivers/net/wireless/ath/ath6kl/wmi.h
index b5f226503baf..1f05ecd97c91 100644
--- a/drivers/net/wireless/ath/ath6kl/wmi.h
+++ b/drivers/net/wireless/ath/ath6kl/wmi.h
@@ -898,7 +898,6 @@ struct wmi_start_scan_cmd {
  *  flags here
  */
 enum wmi_scan_ctrl_flags_bits {
-
 	/* set if can scan in the connect cmd */
 	CONNECT_SCAN_CTRL_FLAGS = 0x01,
 

From a5d8f9dfcf5ead45a2f164f15ca4839325c08815 Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Tue, 11 Mar 2014 12:58:01 +0200
Subject: [PATCH 05/48] ath6kl: use braces on both arms of if statement

Fixes checkpatch warning:

CHECK: braces {} should be used on all arms of this statement

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath6kl/cfg80211.c |  6 ++++--
 drivers/net/wireless/ath/ath6kl/htc_mbox.c | 11 +++++-----
 drivers/net/wireless/ath/ath6kl/main.c     |  6 ++++--
 drivers/net/wireless/ath/ath6kl/sdio.c     | 11 +++++-----
 drivers/net/wireless/ath/ath6kl/txrx.c     | 24 ++++++++++++++--------
 drivers/net/wireless/ath/ath6kl/wmi.c      | 13 +++++++-----
 6 files changed, 44 insertions(+), 27 deletions(-)

diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c
index 9e3af815a4f3..09285084bcd3 100644
--- a/drivers/net/wireless/ath/ath6kl/cfg80211.c
+++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c
@@ -724,8 +724,9 @@ ath6kl_add_bss_if_needed(struct ath6kl_vif *vif,
 			ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
 				   "added bss %pM to cfg80211\n", bssid);
 		kfree(ie);
-	} else
+	} else {
 		ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "cfg80211 already has a bss\n");
+	}
 
 	return bss;
 }
@@ -2848,8 +2849,9 @@ static int ath6kl_start_ap(struct wiphy *wiphy, struct net_device *dev,
 	if (p.prwise_crypto_type == 0) {
 		p.prwise_crypto_type = NONE_CRYPT;
 		ath6kl_set_cipher(vif, 0, true);
-	} else if (info->crypto.n_ciphers_pairwise == 1)
+	} else if (info->crypto.n_ciphers_pairwise == 1) {
 		ath6kl_set_cipher(vif, info->crypto.ciphers_pairwise[0], true);
+	}
 
 	switch (info->crypto.cipher_group) {
 	case WLAN_CIPHER_SUITE_WEP40:
diff --git a/drivers/net/wireless/ath/ath6kl/htc_mbox.c b/drivers/net/wireless/ath/ath6kl/htc_mbox.c
index 1d713dcbad38..e481f14b9878 100644
--- a/drivers/net/wireless/ath/ath6kl/htc_mbox.c
+++ b/drivers/net/wireless/ath/ath6kl/htc_mbox.c
@@ -112,9 +112,9 @@ static void ath6kl_credit_init(struct ath6kl_htc_credit_info *cred_info,
 		if (cur_ep_dist->endpoint == ENDPOINT_0)
 			continue;
 
-		if (cur_ep_dist->svc_id == WMI_CONTROL_SVC)
+		if (cur_ep_dist->svc_id == WMI_CONTROL_SVC) {
 			cur_ep_dist->cred_norm = cur_ep_dist->cred_per_msg;
-		else {
+		} else {
 			/*
 			 * For the remaining data endpoints, we assume that
 			 * each cred_per_msg are the same. We use a simple
@@ -1418,9 +1418,9 @@ static int ath6kl_htc_rx_setup(struct htc_target *target,
 				}
 			}
 
-			if (list_empty(&ep->rx_bufq))
+			if (list_empty(&ep->rx_bufq)) {
 				packet = NULL;
-			else {
+			} else {
 				packet = list_first_entry(&ep->rx_bufq,
 						struct htc_packet, list);
 				list_del(&packet->list);
@@ -2813,8 +2813,9 @@ static int ath6kl_htc_reset(struct htc_target *target)
 			packet->buf = packet->buf_start;
 			packet->endpoint = ENDPOINT_0;
 			list_add_tail(&packet->list, &target->free_ctrl_rxbuf);
-		} else
+		} else {
 			list_add_tail(&packet->list, &target->free_ctrl_txbuf);
+		}
 	}
 
 	return 0;
diff --git a/drivers/net/wireless/ath/ath6kl/main.c b/drivers/net/wireless/ath/ath6kl/main.c
index fcaab0f56e70..d56554674da4 100644
--- a/drivers/net/wireless/ath/ath6kl/main.c
+++ b/drivers/net/wireless/ath/ath6kl/main.c
@@ -690,8 +690,9 @@ void ath6kl_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, bool ismcast)
 		cfg80211_michael_mic_failure(vif->ndev, sta->mac,
 					     NL80211_KEYTYPE_PAIRWISE, keyid,
 					     tsc, GFP_KERNEL);
-	} else
+	} else {
 		ath6kl_cfg80211_tkip_micerr_event(vif, keyid, ismcast);
+	}
 }
 
 static void ath6kl_update_target_stats(struct ath6kl_vif *vif, u8 *ptr, u32 len)
@@ -1090,8 +1091,9 @@ static int ath6kl_open(struct net_device *dev)
 	if (test_bit(CONNECTED, &vif->flags)) {
 		netif_carrier_on(dev);
 		netif_wake_queue(dev);
-	} else
+	} else {
 		netif_carrier_off(dev);
+	}
 
 	return 0;
 }
diff --git a/drivers/net/wireless/ath/ath6kl/sdio.c b/drivers/net/wireless/ath/ath6kl/sdio.c
index 50e886a88dfc..339d89f14d32 100644
--- a/drivers/net/wireless/ath/ath6kl/sdio.c
+++ b/drivers/net/wireless/ath/ath6kl/sdio.c
@@ -425,8 +425,9 @@ static int ath6kl_sdio_read_write_sync(struct ath6kl *ar, u32 addr, u8 *buf,
 			memcpy(tbuf, buf, len);
 
 		bounced = true;
-	} else
+	} else {
 		tbuf = buf;
+	}
 
 	ret = ath6kl_sdio_io(ar_sdio->func, request, addr, tbuf, len);
 	if ((request & HIF_READ) && bounced)
@@ -441,9 +442,9 @@ static int ath6kl_sdio_read_write_sync(struct ath6kl *ar, u32 addr, u8 *buf,
 static void __ath6kl_sdio_write_async(struct ath6kl_sdio *ar_sdio,
 				      struct bus_request *req)
 {
-	if (req->scat_req)
+	if (req->scat_req) {
 		ath6kl_sdio_scat_rw(ar_sdio, req);
-	else {
+	} else {
 		void *context;
 		int status;
 
@@ -673,9 +674,9 @@ static int ath6kl_sdio_async_rw_scatter(struct ath6kl *ar,
 		   "hif-scatter: total len: %d scatter entries: %d\n",
 		   scat_req->len, scat_req->scat_entries);
 
-	if (request & HIF_SYNCHRONOUS)
+	if (request & HIF_SYNCHRONOUS) {
 		status = ath6kl_sdio_scat_rw(ar_sdio, scat_req->busrequest);
-	else {
+	} else {
 		spin_lock_bh(&ar_sdio->wr_async_lock);
 		list_add_tail(&scat_req->busrequest->list, &ar_sdio->wr_asyncq);
 		spin_unlock_bh(&ar_sdio->wr_async_lock);
diff --git a/drivers/net/wireless/ath/ath6kl/txrx.c b/drivers/net/wireless/ath/ath6kl/txrx.c
index cf27a7107dbb..e9c28a7fd235 100644
--- a/drivers/net/wireless/ath/ath6kl/txrx.c
+++ b/drivers/net/wireless/ath/ath6kl/txrx.c
@@ -125,8 +125,9 @@ static bool ath6kl_process_uapsdq(struct ath6kl_sta *conn,
 		*flags |= WMI_DATA_HDR_FLAGS_UAPSD;
 		spin_unlock_bh(&conn->psq_lock);
 		return false;
-	} else if (!conn->apsd_info)
+	} else if (!conn->apsd_info) {
 		return false;
+	}
 
 	if (test_bit(WMM_ENABLED, &vif->flags)) {
 		ether_type = be16_to_cpu(datap->h_proto);
@@ -316,8 +317,9 @@ int ath6kl_control_tx(void *devt, struct sk_buff *skb,
 		cookie = NULL;
 		ath6kl_err("wmi ctrl ep full, dropping pkt : 0x%p, len:%d\n",
 			   skb, skb->len);
-	} else
+	} else {
 		cookie = ath6kl_alloc_cookie(ar);
+	}
 
 	if (cookie == NULL) {
 		spin_unlock_bh(&ar->lock);
@@ -449,8 +451,9 @@ int ath6kl_data_tx(struct sk_buff *skb, struct net_device *dev)
 			if (ret)
 				goto fail_tx;
 		}
-	} else
+	} else {
 		goto fail_tx;
+	}
 
 	spin_lock_bh(&ar->lock);
 
@@ -1088,8 +1091,9 @@ static void aggr_deque_frms(struct aggr_info_conn *agg_conn, u8 tid,
 			else
 				skb_queue_tail(&rxtid->q, node->skb);
 			node->skb = NULL;
-		} else
+		} else {
 			stats->num_hole++;
+		}
 
 		rxtid->seq_next = ATH6KL_NEXT_SEQ_NO(rxtid->seq_next);
 		idx = AGGR_WIN_IDX(rxtid->seq_next, rxtid->hold_q_sz);
@@ -1604,16 +1608,18 @@ void ath6kl_rx(struct htc_target *target, struct htc_packet *packet)
 			if (!conn)
 				return;
 			aggr_conn = conn->aggr_conn;
-		} else
+		} else {
 			aggr_conn = vif->aggr_cntxt->aggr_conn;
+		}
 
 		if (aggr_process_recv_frm(aggr_conn, tid, seq_no,
 					  is_amsdu, skb)) {
 			/* aggregation code will handle the skb */
 			return;
 		}
-	} else if (!is_broadcast_ether_addr(datap->h_dest))
+	} else if (!is_broadcast_ether_addr(datap->h_dest)) {
 		vif->net_stats.multicast++;
+	}
 
 	ath6kl_deliver_frames_to_nw_stack(vif->ndev, skb);
 }
@@ -1708,8 +1714,9 @@ void aggr_recv_addba_req_evt(struct ath6kl_vif *vif, u8 tid_mux, u16 seq_no,
 		sta = ath6kl_find_sta_by_aid(vif->ar, aid);
 		if (sta)
 			aggr_conn = sta->aggr_conn;
-	} else
+	} else {
 		aggr_conn = vif->aggr_cntxt->aggr_conn;
+	}
 
 	if (!aggr_conn)
 		return;
@@ -1803,8 +1810,9 @@ void aggr_recv_delba_req_evt(struct ath6kl_vif *vif, u8 tid_mux)
 		sta = ath6kl_find_sta_by_aid(vif->ar, aid);
 		if (sta)
 			aggr_conn = sta->aggr_conn;
-	} else
+	} else {
 		aggr_conn = vif->aggr_cntxt->aggr_conn;
+	}
 
 	if (!aggr_conn)
 		return;
diff --git a/drivers/net/wireless/ath/ath6kl/wmi.c b/drivers/net/wireless/ath/ath6kl/wmi.c
index 34c49547f09c..0c0e1e36e40f 100644
--- a/drivers/net/wireless/ath/ath6kl/wmi.c
+++ b/drivers/net/wireless/ath/ath6kl/wmi.c
@@ -289,8 +289,9 @@ int ath6kl_wmi_implicit_create_pstream(struct wmi *wmi, u8 if_idx,
 			   ath6kl_wmi_determine_user_priority(((u8 *) llc_hdr) +
 					sizeof(struct ath6kl_llc_snap_hdr),
 					layer2_priority);
-		} else
+		} else {
 			usr_pri = layer2_priority & 0x7;
+		}
 
 		/*
 		 * Queue the EAPOL frames in the same WMM_AC_VO queue
@@ -359,8 +360,9 @@ int ath6kl_wmi_dot11_hdr_remove(struct wmi *wmi, struct sk_buff *skb)
 		hdr_size = roundup(sizeof(struct ieee80211_qos_hdr),
 				   sizeof(u32));
 		skb_pull(skb, hdr_size);
-	} else if (sub_type == cpu_to_le16(IEEE80211_STYPE_DATA))
+	} else if (sub_type == cpu_to_le16(IEEE80211_STYPE_DATA)) {
 		skb_pull(skb, sizeof(struct ieee80211_hdr_3addr));
+	}
 
 	datap = skb->data;
 	llc_hdr = (struct ath6kl_llc_snap_hdr *)(datap);
@@ -945,9 +947,9 @@ static void ath6kl_wmi_regdomain_event(struct wmi *wmi, u8 *datap, int len)
 	ev = (struct ath6kl_wmi_regdomain *) datap;
 	reg_code = le32_to_cpu(ev->reg_code);
 
-	if ((reg_code >> ATH6KL_COUNTRY_RD_SHIFT) & COUNTRY_ERD_FLAG)
+	if ((reg_code >> ATH6KL_COUNTRY_RD_SHIFT) & COUNTRY_ERD_FLAG) {
 		country = ath6kl_regd_find_country((u16) reg_code);
-	else if (!(((u16) reg_code & WORLD_SKU_MASK) == WORLD_SKU_PREFIX)) {
+	} else if (!(((u16) reg_code & WORLD_SKU_MASK) == WORLD_SKU_PREFIX)) {
 		regpair = ath6kl_get_regpair((u16) reg_code);
 		country = ath6kl_regd_find_country_by_rd((u16) reg_code);
 		if (regpair)
@@ -2864,8 +2866,9 @@ int ath6kl_wmi_set_host_sleep_mode_cmd(struct wmi *wmi, u8 if_idx,
 	if (host_mode == ATH6KL_HOST_MODE_ASLEEP) {
 		ath6kl_wmi_relinquish_implicit_pstream_credits(wmi);
 		cmd->asleep = cpu_to_le32(1);
-	} else
+	} else {
 		cmd->awake = cpu_to_le32(1);
+	}
 
 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
 				  WMI_SET_HOST_SLEEP_MODE_CMDID,

From c28d5559e90dd84047a13b32de7229edde17e24d Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Tue, 11 Mar 2014 12:58:02 +0200
Subject: [PATCH 06/48] ath6kl: remove spaces before semicolon

Fixes checkpatch warning:

CHECK: space prohibited before semicolon

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath6kl/target.h | 2 +-
 drivers/net/wireless/ath/ath6kl/txrx.c   | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath6kl/target.h b/drivers/net/wireless/ath/ath6kl/target.h
index a580a629a0da..d5eeeae7711b 100644
--- a/drivers/net/wireless/ath/ath6kl/target.h
+++ b/drivers/net/wireless/ath/ath6kl/target.h
@@ -289,7 +289,7 @@ struct host_interest {
 	u32 hi_hp_rx_traffic_ratio;                    /* 0xd8 */
 
 	/* test applications flags */
-	u32 hi_test_apps_related    ;                  /* 0xdc */
+	u32 hi_test_apps_related;                      /* 0xdc */
 	/* location of test script */
 	u32 hi_ota_testscript;                         /* 0xe0 */
 	/* location of CAL data */
diff --git a/drivers/net/wireless/ath/ath6kl/txrx.c b/drivers/net/wireless/ath/ath6kl/txrx.c
index e9c28a7fd235..40432fe7a5d2 100644
--- a/drivers/net/wireless/ath/ath6kl/txrx.c
+++ b/drivers/net/wireless/ath/ath6kl/txrx.c
@@ -361,7 +361,7 @@ int ath6kl_data_tx(struct sk_buff *skb, struct net_device *dev)
 	struct ath6kl_vif *vif = netdev_priv(dev);
 	u32 map_no = 0;
 	u16 htc_tag = ATH6KL_DATA_PKT_TAG;
-	u8 ac = 99 ; /* initialize to unmapped ac */
+	u8 ac = 99; /* initialize to unmapped ac */
 	bool chk_adhoc_ps_mapping = false;
 	int ret;
 	struct wmi_tx_meta_v2 meta_v2;
@@ -1214,7 +1214,7 @@ static bool aggr_process_recv_frm(struct aggr_info_conn *agg_conn, u8 tid,
 		return is_queued;
 
 	spin_lock_bh(&rxtid->lock);
-	for (idx = 0 ; idx < rxtid->hold_q_sz; idx++) {
+	for (idx = 0; idx < rxtid->hold_q_sz; idx++) {
 		if (rxtid->hold_q[idx].skb) {
 			/*
 			 * There is a frame in the queue and no

From 996bc93231293a88837c2dda17a8c50790969e7f Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Tue, 11 Mar 2014 12:58:02 +0200
Subject: [PATCH 07/48] ath6kl: remove unnecessary line continuations

Fixes checkpatch warning:

WARNING: Avoid unnecessary line continuations

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath6kl/core.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath6kl/core.c b/drivers/net/wireless/ath/ath6kl/core.c
index 4b46adbe8c92..b0b652042760 100644
--- a/drivers/net/wireless/ath/ath6kl/core.c
+++ b/drivers/net/wireless/ath/ath6kl/core.c
@@ -45,9 +45,9 @@ module_param(testmode, uint, 0644);
 module_param(recovery_enable, uint, 0644);
 module_param(heart_beat_poll, uint, 0644);
 MODULE_PARM_DESC(recovery_enable, "Enable recovery from firmware error");
-MODULE_PARM_DESC(heart_beat_poll, "Enable fw error detection periodic"   \
-		 "polling. This also specifies the polling interval in"  \
-		 "msecs. Set reocvery_enable for this to be effective");
+MODULE_PARM_DESC(heart_beat_poll,
+		 "Enable fw error detection periodic polling in msecs - Also set recovery_enable for this to be effective");
+
 
 void ath6kl_core_tx_complete(struct ath6kl *ar, struct sk_buff *skb)
 {

From b5a637881fa9fe9899560dfb5b504b7dfd8e0073 Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Tue, 11 Mar 2014 12:58:03 +0200
Subject: [PATCH 08/48] ath6kl: update Kconfig descriptions

The help text were either out of date, too small or didn't exist at all. Also
move cfg80211 dependency to ath6kl_core module as it has all the calls to
cfg80211.

Fixes checkpatch warning:

WARNING: please write a paragraph that describes the config symbol fully

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath6kl/Kconfig | 30 +++++++++++++++++++------
 1 file changed, 23 insertions(+), 7 deletions(-)

diff --git a/drivers/net/wireless/ath/ath6kl/Kconfig b/drivers/net/wireless/ath/ath6kl/Kconfig
index e39e5860a2e9..9c125ff083f7 100644
--- a/drivers/net/wireless/ath/ath6kl/Kconfig
+++ b/drivers/net/wireless/ath/ath6kl/Kconfig
@@ -1,11 +1,19 @@
 config ATH6KL
 	tristate "Atheros mobile chipsets support"
+	depends on CFG80211
+        ---help---
+	  This module adds core support for wireless adapters based on
+	  Atheros AR6003 and AR6004 chipsets. You still need separate
+	  bus drivers for USB and SDIO to be able to use real devices.
+
+	  If you choose to build it as a module, it will be called
+	  ath6kl_core. Please note that AR6002 and AR6001 are not
+	  supported by this driver.
 
 config ATH6KL_SDIO
 	tristate "Atheros ath6kl SDIO support"
 	depends on ATH6KL
 	depends on MMC
-	depends on CFG80211
 	---help---
 	  This module adds support for wireless adapters based on
 	  Atheros AR6003 and AR6004 chipsets running over SDIO. If you
@@ -17,25 +25,31 @@ config ATH6KL_USB
 	tristate "Atheros ath6kl USB support"
 	depends on ATH6KL
 	depends on USB
-	depends on CFG80211
 	---help---
 	  This module adds support for wireless adapters based on
-	  Atheros AR6004 chipset running over USB. This is still under
-	  implementation and it isn't functional. If you choose to
-	  build it as a module, it will be called ath6kl_usb.
+	  Atheros AR6004 chipset and chipsets based on it running over
+	  USB. If you choose to build it as a module, it will be
+	  called ath6kl_usb.
 
 config ATH6KL_DEBUG
 	bool "Atheros ath6kl debugging"
 	depends on ATH6KL
 	---help---
-	  Enables debug support
+	  Enables ath6kl debug support, including debug messages
+	  enabled with debug_mask module parameter and debugfs
+	  interface.
+
+	  If unsure, say Y to make it easier to debug problems.
 
 config ATH6KL_TRACING
 	bool "Atheros ath6kl tracing support"
 	depends on ATH6KL
 	depends on EVENT_TRACING
 	---help---
-	  Select this to ath6kl use tracing infrastructure.
+	  Select this to ath6kl use tracing infrastructure which, for
+	  example, can be enabled with help of trace-cmd. All debug
+	  messages and commands are delivered to using individually
+	  enablable trace points.
 
 	  If unsure, say Y to make it easier to debug problems.
 
@@ -47,3 +61,5 @@ config ATH6KL_REGDOMAIN
 	  Enabling this makes it possible to change the regdomain in
 	  the firmware. This can be only enabled if regulatory requirements
 	  are taken into account.
+
+	  If unsure, say N.

From d6d4a58dcb479a7d517b36c1daa652c61213e9d1 Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Tue, 11 Mar 2014 17:33:19 +0200
Subject: [PATCH 09/48] ath10k: separate result parameter in
 ath10k_bmi_execute()

It's just cleaner to have separate argument for the parameter and result. Also
fix returned error value if response length is invalid.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/bmi.c  | 13 ++++++++-----
 drivers/net/wireless/ath/ath10k/bmi.h  |  2 +-
 drivers/net/wireless/ath/ath10k/core.c |  6 ++----
 3 files changed, 11 insertions(+), 10 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/bmi.c b/drivers/net/wireless/ath/ath10k/bmi.c
index a1f099628850..17d221abd58c 100644
--- a/drivers/net/wireless/ath/ath10k/bmi.c
+++ b/drivers/net/wireless/ath/ath10k/bmi.c
@@ -175,7 +175,7 @@ int ath10k_bmi_write_memory(struct ath10k *ar,
 	return 0;
 }
 
-int ath10k_bmi_execute(struct ath10k *ar, u32 address, u32 *param)
+int ath10k_bmi_execute(struct ath10k *ar, u32 address, u32 param, u32 *result)
 {
 	struct bmi_cmd cmd;
 	union bmi_resp resp;
@@ -184,7 +184,7 @@ int ath10k_bmi_execute(struct ath10k *ar, u32 address, u32 *param)
 	int ret;
 
 	ath10k_dbg(ATH10K_DBG_BMI, "bmi execute address 0x%x param 0x%x\n",
-		   address, *param);
+		   address, param);
 
 	if (ar->bmi.done_sent) {
 		ath10k_warn("command disallowed\n");
@@ -193,7 +193,7 @@ int ath10k_bmi_execute(struct ath10k *ar, u32 address, u32 *param)
 
 	cmd.id            = __cpu_to_le32(BMI_EXECUTE);
 	cmd.execute.addr  = __cpu_to_le32(address);
-	cmd.execute.param = __cpu_to_le32(*param);
+	cmd.execute.param = __cpu_to_le32(param);
 
 	ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, cmdlen, &resp, &resplen);
 	if (ret) {
@@ -204,10 +204,13 @@ int ath10k_bmi_execute(struct ath10k *ar, u32 address, u32 *param)
 	if (resplen < sizeof(resp.execute)) {
 		ath10k_warn("invalid execute response length (%d)\n",
 			    resplen);
-		return ret;
+		return -EIO;
 	}
 
-	*param = __le32_to_cpu(resp.execute.result);
+	*result = __le32_to_cpu(resp.execute.result);
+
+	ath10k_dbg(ATH10K_DBG_BMI, "bmi execute result 0x%x\n", *result);
+
 	return 0;
 }
 
diff --git a/drivers/net/wireless/ath/ath10k/bmi.h b/drivers/net/wireless/ath/ath10k/bmi.h
index 8d81ce1cec21..3a9bdf51c96a 100644
--- a/drivers/net/wireless/ath/ath10k/bmi.h
+++ b/drivers/net/wireless/ath/ath10k/bmi.h
@@ -217,7 +217,7 @@ int ath10k_bmi_write_memory(struct ath10k *ar, u32 address,
 		ret;							\
 	})
 
-int ath10k_bmi_execute(struct ath10k *ar, u32 address, u32 *param);
+int ath10k_bmi_execute(struct ath10k *ar, u32 address, u32 param, u32 *result);
 int ath10k_bmi_lz_stream_start(struct ath10k *ar, u32 address);
 int ath10k_bmi_lz_data(struct ath10k *ar, const void *buffer, u32 length);
 int ath10k_bmi_fast_download(struct ath10k *ar, u32 address,
diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index ebc5fc2ede75..602fb9644cbf 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -249,8 +249,7 @@ static int ath10k_download_board_data(struct ath10k *ar)
 
 static int ath10k_download_and_run_otp(struct ath10k *ar)
 {
-	u32 address = ar->hw_params.patch_load_addr;
-	u32 exec_param;
+	u32 result, address = ar->hw_params.patch_load_addr;
 	int ret;
 
 	/* OTP is optional */
@@ -264,8 +263,7 @@ static int ath10k_download_and_run_otp(struct ath10k *ar)
 		goto exit;
 	}
 
-	exec_param = 0;
-	ret = ath10k_bmi_execute(ar, address, &exec_param);
+	ret = ath10k_bmi_execute(ar, address, 0, &result);
 	if (ret) {
 		ath10k_err("could not execute otp (%d)\n", ret);
 		goto exit;

From 7f06ea1e79696d6357b214dd6436ba4c17cf71f4 Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Tue, 11 Mar 2014 17:33:28 +0200
Subject: [PATCH 10/48] ath10k: check otp.bin result

When we execute otp.bin in the target check that the result it returns doesn't
contain an error. This is to make sure that we don't accidentally use invalid
calibration data.

While at it, remove the useless label in the function and add few debug messages.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.c | 21 ++++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 602fb9644cbf..471c219e5137 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -254,23 +254,34 @@ static int ath10k_download_and_run_otp(struct ath10k *ar)
 
 	/* OTP is optional */
 
-	if (!ar->otp_data || !ar->otp_len)
+	if (!ar->otp_data || !ar->otp_len) {
+		ath10k_warn("Not running otp, calibration will be incorrect!\n");
 		return 0;
+	}
+
+	ath10k_dbg(ATH10K_DBG_BOOT, "boot upload otp to 0x%x len %zd\n",
+		   address, ar->otp_len);
 
 	ret = ath10k_bmi_fast_download(ar, address, ar->otp_data, ar->otp_len);
 	if (ret) {
 		ath10k_err("could not write otp (%d)\n", ret);
-		goto exit;
+		return ret;
 	}
 
 	ret = ath10k_bmi_execute(ar, address, 0, &result);
 	if (ret) {
 		ath10k_err("could not execute otp (%d)\n", ret);
-		goto exit;
+		return ret;
 	}
 
-exit:
-	return ret;
+	ath10k_dbg(ATH10K_DBG_BOOT, "boot otp execute result %d\n", result);
+
+	if (result != 0) {
+		ath10k_err("otp calibration failed: %d", result);
+		return -EINVAL;
+	}
+
+	return 0;
 }
 
 static int ath10k_download_fw(struct ath10k *ar)

From 2acc4eb2d098c2df8b3f254763c8e648c59b8fdb Mon Sep 17 00:00:00 2001
From: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Date: Wed, 19 Mar 2014 07:09:40 +0100
Subject: [PATCH 11/48] ath10k: add ath10k_htt_rx_amsdu_allowed function

Introduce ath10k_htt_rx_amsdu_allowed() function, that
group code for checking if skip amsdu packets.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/htt_rx.c | 95 +++++++++++++-----------
 1 file changed, 51 insertions(+), 44 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index cdcbe2de95f9..9cd54a9cbd43 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -952,6 +952,55 @@ static int ath10k_unchain_msdu(struct sk_buff *msdu_head)
 	return 0;
 }
 
+static bool ath10k_htt_rx_amsdu_allowed(struct ath10k_htt *htt,
+					struct sk_buff *head,
+					struct htt_rx_info *info)
+{
+	enum htt_rx_mpdu_status status = info->status;
+
+	if (!head) {
+		ath10k_warn("htt rx no data!\n");
+		return false;
+	}
+
+	if (head->len == 0) {
+		ath10k_dbg(ATH10K_DBG_HTT,
+			   "htt rx dropping due to zero-len\n");
+		return false;
+	}
+
+	if (ath10k_htt_rx_has_decrypt_err(head)) {
+		ath10k_dbg(ATH10K_DBG_HTT,
+			   "htt rx dropping due to decrypt-err\n");
+		return false;
+	}
+
+	/* Skip mgmt frames while we handle this in WMI */
+	if (status == HTT_RX_IND_MPDU_STATUS_MGMT_CTRL ||
+	    ath10k_htt_rx_is_mgmt(head)) {
+		ath10k_dbg(ATH10K_DBG_HTT, "htt rx mgmt ctrl\n");
+		return false;
+	}
+
+	if (status != HTT_RX_IND_MPDU_STATUS_OK &&
+	    status != HTT_RX_IND_MPDU_STATUS_TKIP_MIC_ERR &&
+	    status != HTT_RX_IND_MPDU_STATUS_ERR_INV_PEER &&
+	    !htt->ar->monitor_enabled) {
+		ath10k_dbg(ATH10K_DBG_HTT,
+			   "htt rx ignoring frame w/ status %d\n",
+			   status);
+		return false;
+	}
+
+	if (test_bit(ATH10K_CAC_RUNNING, &htt->ar->dev_flags)) {
+		ath10k_dbg(ATH10K_DBG_HTT,
+			   "htt rx CAC running\n");
+		return false;
+	}
+
+	return true;
+}
+
 static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 				  struct htt_rx_indication *rx)
 {
@@ -984,7 +1033,6 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 
 		for (j = 0; j < mpdu_ranges[i].mpdu_count; j++) {
 			struct sk_buff *msdu_head, *msdu_tail;
-			enum htt_rx_mpdu_status status;
 			int msdu_chaining;
 
 			msdu_head = NULL;
@@ -995,49 +1043,8 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 							 &msdu_head,
 							 &msdu_tail);
 
-			if (!msdu_head) {
-				ath10k_warn("htt rx no data!\n");
-				continue;
-			}
-
-			if (msdu_head->len == 0) {
-				ath10k_dbg(ATH10K_DBG_HTT,
-					   "htt rx dropping due to zero-len\n");
-				ath10k_htt_rx_free_msdu_chain(msdu_head);
-				continue;
-			}
-
-			if (ath10k_htt_rx_has_decrypt_err(msdu_head)) {
-				ath10k_dbg(ATH10K_DBG_HTT,
-					   "htt rx dropping due to decrypt-err\n");
-				ath10k_htt_rx_free_msdu_chain(msdu_head);
-				continue;
-			}
-
-			status = info.status;
-
-			/* Skip mgmt frames while we handle this in WMI */
-			if (status == HTT_RX_IND_MPDU_STATUS_MGMT_CTRL ||
-			    ath10k_htt_rx_is_mgmt(msdu_head)) {
-				ath10k_dbg(ATH10K_DBG_HTT, "htt rx mgmt ctrl\n");
-				ath10k_htt_rx_free_msdu_chain(msdu_head);
-				continue;
-			}
-
-			if (status != HTT_RX_IND_MPDU_STATUS_OK &&
-			    status != HTT_RX_IND_MPDU_STATUS_TKIP_MIC_ERR &&
-			    status != HTT_RX_IND_MPDU_STATUS_ERR_INV_PEER &&
-			    !htt->ar->monitor_enabled) {
-				ath10k_dbg(ATH10K_DBG_HTT,
-					   "htt rx ignoring frame w/ status %d\n",
-					   status);
-				ath10k_htt_rx_free_msdu_chain(msdu_head);
-				continue;
-			}
-
-			if (test_bit(ATH10K_CAC_RUNNING, &htt->ar->dev_flags)) {
-				ath10k_dbg(ATH10K_DBG_HTT,
-					   "htt rx CAC running\n");
+			if (!ath10k_htt_rx_amsdu_allowed(htt, msdu_head,
+							 &info)) {
 				ath10k_htt_rx_free_msdu_chain(msdu_head);
 				continue;
 			}

From e8dc1a968d129f6f96d57a050e35660edb03c216 Mon Sep 17 00:00:00 2001
From: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Date: Wed, 19 Mar 2014 07:09:41 +0100
Subject: [PATCH 12/48] ath10k: Fill per-ppdu info in rx_info only once

Don't fill this for each msdu, while this is the
same.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/htt_rx.c | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index 9cd54a9cbd43..a407d989f402 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -1023,6 +1023,15 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 			     HTT_RX_INDICATION_INFO1_NUM_MPDU_RANGES);
 	mpdu_ranges = htt_rx_ind_get_mpdu_ranges(rx);
 
+	/* Fill this once, while this is per-ppdu */
+	info.signal  = ATH10K_DEFAULT_NOISE_FLOOR;
+	info.signal += rx->ppdu.combined_rssi;
+
+	info.rate.info0 = rx->ppdu.info0;
+	info.rate.info1 = __le32_to_cpu(rx->ppdu.info1);
+	info.rate.info2 = __le32_to_cpu(rx->ppdu.info2);
+	info.tsf = __le32_to_cpu(rx->ppdu.tsf);
+
 	ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "htt rx ind: ",
 			rx, sizeof(*rx) +
 			(sizeof(struct htt_rx_indication_mpdu_range) *
@@ -1067,14 +1076,6 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 				ath10k_dbg(ATH10K_DBG_HTT,
 					   "htt rx has MIC err\n");
 
-			info.signal  = ATH10K_DEFAULT_NOISE_FLOOR;
-			info.signal += rx->ppdu.combined_rssi;
-
-			info.rate.info0 = rx->ppdu.info0;
-			info.rate.info1 = __le32_to_cpu(rx->ppdu.info1);
-			info.rate.info2 = __le32_to_cpu(rx->ppdu.info2);
-			info.tsf = __le32_to_cpu(rx->ppdu.tsf);
-
 			hdr = ath10k_htt_rx_skb_get_hdr(msdu_head);
 
 			if (ath10k_htt_rx_hdr_is_amsdu(hdr))

From 8c65699274a695df941407ccb91c633819039193 Mon Sep 17 00:00:00 2001
From: Marek Puzyniak <marek.puzyniak@tieto.com>
Date: Fri, 21 Mar 2014 17:46:56 +0200
Subject: [PATCH 13/48] ath10k: add soft/hard firmware crash option to
 simulate_fw_crash

Command WMI_FORCE_FW_HANG_CMDID is not supported in firmware 10.1.
In order to have firmware crash simulation functionality also
in firmware 10.1 driver can force firmware crash by performing not allowed
operation. Driver can deliberately crash firmware when setting vdev param for
vdev id out of range.  This patch introduces two keywords to simulate_fw_crash:

'soft' which will cause firmware crash that is recoverable
       by warm firmware reset but supported only in main firmware.
'hard' which will cause firmware crash recoverable by cold
       firmware reset, this option works for both firmwares.

Commands to trigger firmware soft/hard crash:

echo 'soft' > /sys/kernel/debug/ieee80211/phyX/ath10k/simulate_fw_crash
echo 'hard' > /sys/kernel/debug/ieee80211/phyX/ath10k/simulate_fw_crash

kvalo: remove '\n' before checking the command and simplify how buf is null
terminated

Signed-off-by: Marek Puzyniak <marek.puzyniak@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/debug.c | 54 ++++++++++++++++++-------
 1 file changed, 40 insertions(+), 14 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c
index 6debd281350a..465d782b9e39 100644
--- a/drivers/net/wireless/ath/ath10k/debug.c
+++ b/drivers/net/wireless/ath/ath10k/debug.c
@@ -451,27 +451,37 @@ static ssize_t ath10k_read_simulate_fw_crash(struct file *file,
 					     char __user *user_buf,
 					     size_t count, loff_t *ppos)
 {
-	const char buf[] = "To simulate firmware crash write the keyword"
-			   " `crash` to this file.\nThis will force firmware"
-			   " to report a crash to the host system.\n";
+	const char buf[] = "To simulate firmware crash write one of the"
+			   " keywords to this file:\n `soft` - this will send"
+			   " WMI_FORCE_FW_HANG_ASSERT to firmware if FW"
+			   " supports that command.\n `hard` - this will send"
+			   " to firmware command with illegal parameters"
+			   " causing firmware crash.\n";
+
 	return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
 }
 
+/* Simulate firmware crash:
+ * 'soft': Call wmi command causing firmware hang. This firmware hang is
+ * recoverable by warm firmware reset.
+ * 'hard': Force firmware crash by setting any vdev parameter for not allowed
+ * vdev id. This is hard firmware crash because it is recoverable only by cold
+ * firmware reset.
+ */
 static ssize_t ath10k_write_simulate_fw_crash(struct file *file,
 					      const char __user *user_buf,
 					      size_t count, loff_t *ppos)
 {
 	struct ath10k *ar = file->private_data;
-	char buf[32] = {};
+	char buf[32];
 	int ret;
 
 	mutex_lock(&ar->conf_mutex);
 
 	simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
-	if (strcmp(buf, "crash") && strcmp(buf, "crash\n")) {
-		ret = -EINVAL;
-		goto exit;
-	}
+
+	/* make sure that buf is null terminated */
+	buf[sizeof(buf) - 1] = 0;
 
 	if (ar->state != ATH10K_STATE_ON &&
 	    ar->state != ATH10K_STATE_RESTARTED) {
@@ -479,14 +489,30 @@ static ssize_t ath10k_write_simulate_fw_crash(struct file *file,
 		goto exit;
 	}
 
-	ath10k_info("simulating firmware crash\n");
+	/* drop the possible '\n' from the end */
+	if (buf[count - 1] == '\n') {
+		buf[count - 1] = 0;
+		count--;
+	}
 
-	ret = ath10k_wmi_force_fw_hang(ar, WMI_FORCE_FW_HANG_ASSERT, 0);
-	if (ret)
-		ath10k_warn("failed to force fw hang (%d)\n", ret);
+	if (!strcmp(buf, "soft")) {
+		ath10k_info("simulating soft firmware crash\n");
+		ret = ath10k_wmi_force_fw_hang(ar, WMI_FORCE_FW_HANG_ASSERT, 0);
+	} else if (!strcmp(buf, "hard")) {
+		ath10k_info("simulating hard firmware crash\n");
+		ret = ath10k_wmi_vdev_set_param(ar, TARGET_NUM_VDEVS + 1,
+					ar->wmi.vdev_param->rts_threshold, 0);
+	} else {
+		ret = -EINVAL;
+		goto exit;
+	}
 
-	if (ret == 0)
-		ret = count;
+	if (ret) {
+		ath10k_warn("failed to simulate firmware crash: %d\n", ret);
+		goto exit;
+	}
+
+	ret = count;
 
 exit:
 	mutex_unlock(&ar->conf_mutex);

From 821af6ae26bcd024d73a1aa7f47e45c0a3814dc1 Mon Sep 17 00:00:00 2001
From: Marek Puzyniak <marek.puzyniak@tieto.com>
Date: Fri, 21 Mar 2014 17:46:57 +0200
Subject: [PATCH 14/48] ath10k: update regulatory domain settings for 10.x
 firmware

Regulatory domain settings for firmware 10.x has more options
than main firmware, so handle regulatory domain setup separately
for both supported firmwares. Fill in additional dfs domain
parameter according to current regulatory.
This patch does not solve any known bug. Not handled parameter
for firmware 10.x was found during code review.

Signed-off-by: Marek Puzyniak <marek.puzyniak@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/mac.c | 28 ++++++++++++++++-
 drivers/net/wireless/ath/ath10k/wmi.c | 45 +++++++++++++++++++++++++--
 drivers/net/wireless/ath/ath10k/wmi.h | 28 ++++++++++++++++-
 3 files changed, 97 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 9e24ae972ec9..5d3751d75419 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -1726,10 +1726,28 @@ static int ath10k_update_channel_list(struct ath10k *ar)
 	return ret;
 }
 
+static enum wmi_dfs_region
+ath10k_mac_get_dfs_region(enum nl80211_dfs_regions dfs_region)
+{
+	switch (dfs_region) {
+	case NL80211_DFS_UNSET:
+		return WMI_UNINIT_DFS_DOMAIN;
+	case NL80211_DFS_FCC:
+		return WMI_FCC_DFS_DOMAIN;
+	case NL80211_DFS_ETSI:
+		return WMI_ETSI_DFS_DOMAIN;
+	case NL80211_DFS_JP:
+		return WMI_MKK4_DFS_DOMAIN;
+	}
+	return WMI_UNINIT_DFS_DOMAIN;
+}
+
 static void ath10k_regd_update(struct ath10k *ar)
 {
 	struct reg_dmn_pair_mapping *regpair;
 	int ret;
+	enum wmi_dfs_region wmi_dfs_reg;
+	enum nl80211_dfs_regions nl_dfs_reg;
 
 	lockdep_assert_held(&ar->conf_mutex);
 
@@ -1739,6 +1757,13 @@ static void ath10k_regd_update(struct ath10k *ar)
 
 	regpair = ar->ath_common.regulatory.regpair;
 
+	if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED) && ar->dfs_detector) {
+		nl_dfs_reg = ar->dfs_detector->region;
+		wmi_dfs_reg = ath10k_mac_get_dfs_region(nl_dfs_reg);
+	} else {
+		wmi_dfs_reg = WMI_UNINIT_DFS_DOMAIN;
+	}
+
 	/* Target allows setting up per-band regdomain but ath_common provides
 	 * a combined one only */
 	ret = ath10k_wmi_pdev_set_regdomain(ar,
@@ -1746,7 +1771,8 @@ static void ath10k_regd_update(struct ath10k *ar)
 					    regpair->reg_domain, /* 2ghz */
 					    regpair->reg_domain, /* 5ghz */
 					    regpair->reg_2ghz_ctl,
-					    regpair->reg_5ghz_ctl);
+					    regpair->reg_5ghz_ctl,
+					    wmi_dfs_reg);
 	if (ret)
 		ath10k_warn("could not set pdev regdomain (%d)\n", ret);
 }
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index d61bdf6db458..d4b48ef0ec2e 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -2393,8 +2393,9 @@ int ath10k_wmi_connect_htc_service(struct ath10k *ar)
 	return 0;
 }
 
-int ath10k_wmi_pdev_set_regdomain(struct ath10k *ar, u16 rd, u16 rd2g,
-				  u16 rd5g, u16 ctl2g, u16 ctl5g)
+static int ath10k_wmi_main_pdev_set_regdomain(struct ath10k *ar, u16 rd,
+					      u16 rd2g, u16 rd5g, u16 ctl2g,
+					      u16 ctl5g)
 {
 	struct wmi_pdev_set_regdomain_cmd *cmd;
 	struct sk_buff *skb;
@@ -2418,6 +2419,46 @@ int ath10k_wmi_pdev_set_regdomain(struct ath10k *ar, u16 rd, u16 rd2g,
 				   ar->wmi.cmd->pdev_set_regdomain_cmdid);
 }
 
+static int ath10k_wmi_10x_pdev_set_regdomain(struct ath10k *ar, u16 rd,
+					     u16 rd2g, u16 rd5g,
+					     u16 ctl2g, u16 ctl5g,
+					     enum wmi_dfs_region dfs_reg)
+{
+	struct wmi_pdev_set_regdomain_cmd_10x *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_pdev_set_regdomain_cmd_10x *)skb->data;
+	cmd->reg_domain = __cpu_to_le32(rd);
+	cmd->reg_domain_2G = __cpu_to_le32(rd2g);
+	cmd->reg_domain_5G = __cpu_to_le32(rd5g);
+	cmd->conformance_test_limit_2G = __cpu_to_le32(ctl2g);
+	cmd->conformance_test_limit_5G = __cpu_to_le32(ctl5g);
+	cmd->dfs_domain = __cpu_to_le32(dfs_reg);
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi pdev regdomain rd %x rd2g %x rd5g %x ctl2g %x ctl5g %x dfs_region %x\n",
+		   rd, rd2g, rd5g, ctl2g, ctl5g, dfs_reg);
+
+	return ath10k_wmi_cmd_send(ar, skb,
+				   ar->wmi.cmd->pdev_set_regdomain_cmdid);
+}
+
+int ath10k_wmi_pdev_set_regdomain(struct ath10k *ar, u16 rd, u16 rd2g,
+				  u16 rd5g, u16 ctl2g, u16 ctl5g,
+				  enum wmi_dfs_region dfs_reg)
+{
+	if (test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features))
+		return ath10k_wmi_10x_pdev_set_regdomain(ar, rd, rd2g, rd5g,
+							ctl2g, ctl5g, dfs_reg);
+	else
+		return ath10k_wmi_main_pdev_set_regdomain(ar, rd, rd2g, rd5g,
+							 ctl2g, ctl5g);
+}
+
 int ath10k_wmi_pdev_set_channel(struct ath10k *ar,
 				const struct wmi_channel_arg *arg)
 {
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index e78a7adb66a4..e5c12e639865 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -2185,6 +2185,31 @@ struct wmi_pdev_set_regdomain_cmd {
 	__le32 conformance_test_limit_5G;
 } __packed;
 
+enum wmi_dfs_region {
+	/* Uninitialized dfs domain */
+	WMI_UNINIT_DFS_DOMAIN = 0,
+
+	/* FCC3 dfs domain */
+	WMI_FCC_DFS_DOMAIN = 1,
+
+	/* ETSI dfs domain */
+	WMI_ETSI_DFS_DOMAIN = 2,
+
+	/*Japan dfs domain */
+	WMI_MKK4_DFS_DOMAIN = 3,
+};
+
+struct wmi_pdev_set_regdomain_cmd_10x {
+	__le32 reg_domain;
+	__le32 reg_domain_2G;
+	__le32 reg_domain_5G;
+	__le32 conformance_test_limit_2G;
+	__le32 conformance_test_limit_5G;
+
+	/* dfs domain from wmi_dfs_region */
+	__le32 dfs_domain;
+} __packed;
+
 /* Command to set/unset chip in quiet mode */
 struct wmi_pdev_set_quiet_cmd {
 	/* period in TUs */
@@ -4215,7 +4240,8 @@ int ath10k_wmi_pdev_set_channel(struct ath10k *ar,
 int ath10k_wmi_pdev_suspend_target(struct ath10k *ar, u32 suspend_opt);
 int ath10k_wmi_pdev_resume_target(struct ath10k *ar);
 int ath10k_wmi_pdev_set_regdomain(struct ath10k *ar, u16 rd, u16 rd2g,
-				  u16 rd5g, u16 ctl2g, u16 ctl5g);
+				  u16 rd5g, u16 ctl2g, u16 ctl5g,
+				  enum wmi_dfs_region dfs_reg);
 int ath10k_wmi_pdev_set_param(struct ath10k *ar, u32 id, u32 value);
 int ath10k_wmi_cmd_init(struct ath10k *ar);
 int ath10k_wmi_start_scan(struct ath10k *ar, const struct wmi_start_scan_arg *);

From cf0fd562354bf2da8f98348ffab42826e2c976d4 Mon Sep 17 00:00:00 2001
From: Chun-Yeow Yeoh <yeohchunyeow@gmail.com>
Date: Fri, 21 Mar 2014 17:46:58 +0200
Subject: [PATCH 15/48] ath10k: fix the peer mac address in getting stats
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Using the macro to convert the MAC address from WMI word
format to char array has lead to the wrong peer mac
address printed out while retrieving the peer stats from
FW. Fix this.

Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com>
Reviewed-By: Michał Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/debug.c |  4 ++--
 drivers/net/wireless/ath/ath10k/wmi.h   | 10 ----------
 2 files changed, 2 insertions(+), 12 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c
index 465d782b9e39..2dc598c73089 100644
--- a/drivers/net/wireless/ath/ath10k/debug.c
+++ b/drivers/net/wireless/ath/ath10k/debug.c
@@ -252,8 +252,8 @@ void ath10k_debug_read_target_stats(struct ath10k *ar,
 			peer_stats = (struct wmi_peer_stats *)tmp;
 			s = &stats->peer_stat[i];
 
-			WMI_MAC_ADDR_TO_CHAR_ARRAY(&peer_stats->peer_macaddr,
-						   s->peer_macaddr);
+			memcpy(s->peer_macaddr, &peer_stats->peer_macaddr.addr,
+			       ETH_ALEN);
 			s->peer_rssi = __le32_to_cpu(peer_stats->peer_rssi);
 			s->peer_tx_rate =
 				__le32_to_cpu(peer_stats->peer_tx_rate);
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index e5c12e639865..e0421c271ad1 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -198,16 +198,6 @@ struct wmi_mac_addr {
 	} __packed;
 } __packed;
 
-/* macro to convert MAC address from WMI word format to char array */
-#define WMI_MAC_ADDR_TO_CHAR_ARRAY(pwmi_mac_addr, c_macaddr) do { \
-	(c_macaddr)[0] =  ((pwmi_mac_addr)->word0) & 0xff; \
-	(c_macaddr)[1] = (((pwmi_mac_addr)->word0) >> 8) & 0xff; \
-	(c_macaddr)[2] = (((pwmi_mac_addr)->word0) >> 16) & 0xff; \
-	(c_macaddr)[3] = (((pwmi_mac_addr)->word0) >> 24) & 0xff; \
-	(c_macaddr)[4] =  ((pwmi_mac_addr)->word1) & 0xff; \
-	(c_macaddr)[5] = (((pwmi_mac_addr)->word1) >> 8) & 0xff; \
-	} while (0)
-
 struct wmi_cmd_map {
 	u32 init_cmdid;
 	u32 start_scan_cmdid;

From 73539b406c9011f66bddd2a490ff61e4cdb948bc Mon Sep 17 00:00:00 2001
From: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Date: Mon, 24 Mar 2014 21:23:15 +0100
Subject: [PATCH 16/48] ath10k: move rx related functions to htt_rx.c

No functional changes.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/htt_rx.c | 183 +++++++++++++++++++++++
 drivers/net/wireless/ath/ath10k/txrx.c   | 183 -----------------------
 drivers/net/wireless/ath/ath10k/txrx.h   |   1 -
 3 files changed, 183 insertions(+), 184 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index a407d989f402..c07fc8f134e8 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -636,6 +636,189 @@ struct amsdu_subframe_hdr {
 	__be16 len;
 } __packed;
 
+static const u8 rx_legacy_rate_idx[] = {
+	3,	/* 0x00  - 11Mbps  */
+	2,	/* 0x01  - 5.5Mbps */
+	1,	/* 0x02  - 2Mbps   */
+	0,	/* 0x03  - 1Mbps   */
+	3,	/* 0x04  - 11Mbps  */
+	2,	/* 0x05  - 5.5Mbps */
+	1,	/* 0x06  - 2Mbps   */
+	0,	/* 0x07  - 1Mbps   */
+	10,	/* 0x08  - 48Mbps  */
+	8,	/* 0x09  - 24Mbps  */
+	6,	/* 0x0A  - 12Mbps  */
+	4,	/* 0x0B  - 6Mbps   */
+	11,	/* 0x0C  - 54Mbps  */
+	9,	/* 0x0D  - 36Mbps  */
+	7,	/* 0x0E  - 18Mbps  */
+	5,	/* 0x0F  - 9Mbps   */
+};
+
+static void process_rx_rates(struct ath10k *ar, struct htt_rx_info *info,
+			     enum ieee80211_band band,
+			     struct ieee80211_rx_status *status)
+{
+	u8 cck, rate, rate_idx, bw, sgi, mcs, nss;
+	u8 info0 = info->rate.info0;
+	u32 info1 = info->rate.info1;
+	u32 info2 = info->rate.info2;
+	u8 preamble = 0;
+
+	/* Check if valid fields */
+	if (!(info0 & HTT_RX_INDICATION_INFO0_START_VALID))
+		return;
+
+	preamble = MS(info1, HTT_RX_INDICATION_INFO1_PREAMBLE_TYPE);
+
+	switch (preamble) {
+	case HTT_RX_LEGACY:
+		cck = info0 & HTT_RX_INDICATION_INFO0_LEGACY_RATE_CCK;
+		rate = MS(info0, HTT_RX_INDICATION_INFO0_LEGACY_RATE);
+		rate_idx = 0;
+
+		if (rate < 0x08 || rate > 0x0F)
+			break;
+
+		switch (band) {
+		case IEEE80211_BAND_2GHZ:
+			if (cck)
+				rate &= ~BIT(3);
+			rate_idx = rx_legacy_rate_idx[rate];
+			break;
+		case IEEE80211_BAND_5GHZ:
+			rate_idx = rx_legacy_rate_idx[rate];
+			/* We are using same rate table registering
+			   HW - ath10k_rates[]. In case of 5GHz skip
+			   CCK rates, so -4 here */
+			rate_idx -= 4;
+			break;
+		default:
+			break;
+		}
+
+		status->rate_idx = rate_idx;
+		break;
+	case HTT_RX_HT:
+	case HTT_RX_HT_WITH_TXBF:
+		/* HT-SIG - Table 20-11 in info1 and info2 */
+		mcs = info1 & 0x1F;
+		nss = mcs >> 3;
+		bw = (info1 >> 7) & 1;
+		sgi = (info2 >> 7) & 1;
+
+		status->rate_idx = mcs;
+		status->flag |= RX_FLAG_HT;
+		if (sgi)
+			status->flag |= RX_FLAG_SHORT_GI;
+		if (bw)
+			status->flag |= RX_FLAG_40MHZ;
+		break;
+	case HTT_RX_VHT:
+	case HTT_RX_VHT_WITH_TXBF:
+		/* VHT-SIG-A1 in info 1, VHT-SIG-A2 in info2
+		   TODO check this */
+		mcs = (info2 >> 4) & 0x0F;
+		nss = ((info1 >> 10) & 0x07) + 1;
+		bw = info1 & 3;
+		sgi = info2 & 1;
+
+		status->rate_idx = mcs;
+		status->vht_nss = nss;
+
+		if (sgi)
+			status->flag |= RX_FLAG_SHORT_GI;
+
+		switch (bw) {
+		/* 20MHZ */
+		case 0:
+			break;
+		/* 40MHZ */
+		case 1:
+			status->flag |= RX_FLAG_40MHZ;
+			break;
+		/* 80MHZ */
+		case 2:
+			status->vht_flag |= RX_VHT_FLAG_80MHZ;
+		}
+
+		status->flag |= RX_FLAG_VHT;
+		break;
+	default:
+		break;
+	}
+}
+
+static void ath10k_process_rx(struct ath10k *ar, struct htt_rx_info *info)
+{
+	struct ieee80211_rx_status *status;
+	struct ieee80211_channel *ch;
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)info->skb->data;
+
+	status = IEEE80211_SKB_RXCB(info->skb);
+	memset(status, 0, sizeof(*status));
+
+	if (info->encrypt_type != HTT_RX_MPDU_ENCRYPT_NONE) {
+		status->flag |= RX_FLAG_DECRYPTED | RX_FLAG_IV_STRIPPED |
+				RX_FLAG_MMIC_STRIPPED;
+		hdr->frame_control = __cpu_to_le16(
+				__le16_to_cpu(hdr->frame_control) &
+				~IEEE80211_FCTL_PROTECTED);
+	}
+
+	if (info->mic_err)
+		status->flag |= RX_FLAG_MMIC_ERROR;
+
+	if (info->fcs_err)
+		status->flag |= RX_FLAG_FAILED_FCS_CRC;
+
+	if (info->amsdu_more)
+		status->flag |= RX_FLAG_AMSDU_MORE;
+
+	status->signal = info->signal;
+
+	spin_lock_bh(&ar->data_lock);
+	ch = ar->scan_channel;
+	if (!ch)
+		ch = ar->rx_channel;
+	spin_unlock_bh(&ar->data_lock);
+
+	if (!ch) {
+		ath10k_warn("no channel configured; ignoring frame!\n");
+		dev_kfree_skb_any(info->skb);
+		return;
+	}
+
+	process_rx_rates(ar, info, ch->band, status);
+	status->band = ch->band;
+	status->freq = ch->center_freq;
+
+	if (info->rate.info0 & HTT_RX_INDICATION_INFO0_END_VALID) {
+		/* TSF available only in 32-bit */
+		status->mactime = info->tsf & 0xffffffff;
+		status->flag |= RX_FLAG_MACTIME_END;
+	}
+
+	ath10k_dbg(ATH10K_DBG_DATA,
+		   "rx skb %p len %u %s%s%s%s%s %srate_idx %u vht_nss %u freq %u band %u flag 0x%x fcs-err %i\n",
+		   info->skb,
+		   info->skb->len,
+		   status->flag == 0 ? "legacy" : "",
+		   status->flag & RX_FLAG_HT ? "ht" : "",
+		   status->flag & RX_FLAG_VHT ? "vht" : "",
+		   status->flag & RX_FLAG_40MHZ ? "40" : "",
+		   status->vht_flag & RX_VHT_FLAG_80MHZ ? "80" : "",
+		   status->flag & RX_FLAG_SHORT_GI ? "sgi " : "",
+		   status->rate_idx,
+		   status->vht_nss,
+		   status->freq,
+		   status->band, status->flag, info->fcs_err);
+	ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "rx skb: ",
+			info->skb->data, info->skb->len);
+
+	ieee80211_rx(ar->hw, info->skb);
+}
+
 static int ath10k_htt_rx_nwifi_hdrlen(struct ieee80211_hdr *hdr)
 {
 	/* nwifi header is padded to 4 bytes. this fixes 4addr rx */
diff --git a/drivers/net/wireless/ath/ath10k/txrx.c b/drivers/net/wireless/ath/ath10k/txrx.c
index 0541dd939ce9..82669a77e553 100644
--- a/drivers/net/wireless/ath/ath10k/txrx.c
+++ b/drivers/net/wireless/ath/ath10k/txrx.c
@@ -100,189 +100,6 @@ void ath10k_txrx_tx_unref(struct ath10k_htt *htt,
 		wake_up(&htt->empty_tx_wq);
 }
 
-static const u8 rx_legacy_rate_idx[] = {
-	3,	/* 0x00  - 11Mbps  */
-	2,	/* 0x01  - 5.5Mbps */
-	1,	/* 0x02  - 2Mbps   */
-	0,	/* 0x03  - 1Mbps   */
-	3,	/* 0x04  - 11Mbps  */
-	2,	/* 0x05  - 5.5Mbps */
-	1,	/* 0x06  - 2Mbps   */
-	0,	/* 0x07  - 1Mbps   */
-	10,	/* 0x08  - 48Mbps  */
-	8,	/* 0x09  - 24Mbps  */
-	6,	/* 0x0A  - 12Mbps  */
-	4,	/* 0x0B  - 6Mbps   */
-	11,	/* 0x0C  - 54Mbps  */
-	9,	/* 0x0D  - 36Mbps  */
-	7,	/* 0x0E  - 18Mbps  */
-	5,	/* 0x0F  - 9Mbps   */
-};
-
-static void process_rx_rates(struct ath10k *ar, struct htt_rx_info *info,
-			     enum ieee80211_band band,
-			     struct ieee80211_rx_status *status)
-{
-	u8 cck, rate, rate_idx, bw, sgi, mcs, nss;
-	u8 info0 = info->rate.info0;
-	u32 info1 = info->rate.info1;
-	u32 info2 = info->rate.info2;
-	u8 preamble = 0;
-
-	/* Check if valid fields */
-	if (!(info0 & HTT_RX_INDICATION_INFO0_START_VALID))
-		return;
-
-	preamble = MS(info1, HTT_RX_INDICATION_INFO1_PREAMBLE_TYPE);
-
-	switch (preamble) {
-	case HTT_RX_LEGACY:
-		cck = info0 & HTT_RX_INDICATION_INFO0_LEGACY_RATE_CCK;
-		rate = MS(info0, HTT_RX_INDICATION_INFO0_LEGACY_RATE);
-		rate_idx = 0;
-
-		if (rate < 0x08 || rate > 0x0F)
-			break;
-
-		switch (band) {
-		case IEEE80211_BAND_2GHZ:
-			if (cck)
-				rate &= ~BIT(3);
-			rate_idx = rx_legacy_rate_idx[rate];
-			break;
-		case IEEE80211_BAND_5GHZ:
-			rate_idx = rx_legacy_rate_idx[rate];
-			/* We are using same rate table registering
-			   HW - ath10k_rates[]. In case of 5GHz skip
-			   CCK rates, so -4 here */
-			rate_idx -= 4;
-			break;
-		default:
-			break;
-		}
-
-		status->rate_idx = rate_idx;
-		break;
-	case HTT_RX_HT:
-	case HTT_RX_HT_WITH_TXBF:
-		/* HT-SIG - Table 20-11 in info1 and info2 */
-		mcs = info1 & 0x1F;
-		nss = mcs >> 3;
-		bw = (info1 >> 7) & 1;
-		sgi = (info2 >> 7) & 1;
-
-		status->rate_idx = mcs;
-		status->flag |= RX_FLAG_HT;
-		if (sgi)
-			status->flag |= RX_FLAG_SHORT_GI;
-		if (bw)
-			status->flag |= RX_FLAG_40MHZ;
-		break;
-	case HTT_RX_VHT:
-	case HTT_RX_VHT_WITH_TXBF:
-		/* VHT-SIG-A1 in info 1, VHT-SIG-A2 in info2
-		   TODO check this */
-		mcs = (info2 >> 4) & 0x0F;
-		nss = ((info1 >> 10) & 0x07) + 1;
-		bw = info1 & 3;
-		sgi = info2 & 1;
-
-		status->rate_idx = mcs;
-		status->vht_nss = nss;
-
-		if (sgi)
-			status->flag |= RX_FLAG_SHORT_GI;
-
-		switch (bw) {
-		/* 20MHZ */
-		case 0:
-			break;
-		/* 40MHZ */
-		case 1:
-			status->flag |= RX_FLAG_40MHZ;
-			break;
-		/* 80MHZ */
-		case 2:
-			status->vht_flag |= RX_VHT_FLAG_80MHZ;
-		}
-
-		status->flag |= RX_FLAG_VHT;
-		break;
-	default:
-		break;
-	}
-}
-
-void ath10k_process_rx(struct ath10k *ar, struct htt_rx_info *info)
-{
-	struct ieee80211_rx_status *status;
-	struct ieee80211_channel *ch;
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)info->skb->data;
-
-	status = IEEE80211_SKB_RXCB(info->skb);
-	memset(status, 0, sizeof(*status));
-
-	if (info->encrypt_type != HTT_RX_MPDU_ENCRYPT_NONE) {
-		status->flag |= RX_FLAG_DECRYPTED | RX_FLAG_IV_STRIPPED |
-				RX_FLAG_MMIC_STRIPPED;
-		hdr->frame_control = __cpu_to_le16(
-				__le16_to_cpu(hdr->frame_control) &
-				~IEEE80211_FCTL_PROTECTED);
-	}
-
-	if (info->mic_err)
-		status->flag |= RX_FLAG_MMIC_ERROR;
-
-	if (info->fcs_err)
-		status->flag |= RX_FLAG_FAILED_FCS_CRC;
-
-	if (info->amsdu_more)
-		status->flag |= RX_FLAG_AMSDU_MORE;
-
-	status->signal = info->signal;
-
-	spin_lock_bh(&ar->data_lock);
-	ch = ar->scan_channel;
-	if (!ch)
-		ch = ar->rx_channel;
-	spin_unlock_bh(&ar->data_lock);
-
-	if (!ch) {
-		ath10k_warn("no channel configured; ignoring frame!\n");
-		dev_kfree_skb_any(info->skb);
-		return;
-	}
-
-	process_rx_rates(ar, info, ch->band, status);
-	status->band = ch->band;
-	status->freq = ch->center_freq;
-
-	if (info->rate.info0 & HTT_RX_INDICATION_INFO0_END_VALID) {
-		/* TSF available only in 32-bit */
-		status->mactime = info->tsf & 0xffffffff;
-		status->flag |= RX_FLAG_MACTIME_END;
-	}
-
-	ath10k_dbg(ATH10K_DBG_DATA,
-		   "rx skb %p len %u %s%s%s%s%s %srate_idx %u vht_nss %u freq %u band %u flag 0x%x fcs-err %i\n",
-		   info->skb,
-		   info->skb->len,
-		   status->flag == 0 ? "legacy" : "",
-		   status->flag & RX_FLAG_HT ? "ht" : "",
-		   status->flag & RX_FLAG_VHT ? "vht" : "",
-		   status->flag & RX_FLAG_40MHZ ? "40" : "",
-		   status->vht_flag & RX_VHT_FLAG_80MHZ ? "80" : "",
-		   status->flag & RX_FLAG_SHORT_GI ? "sgi " : "",
-		   status->rate_idx,
-		   status->vht_nss,
-		   status->freq,
-		   status->band, status->flag, info->fcs_err);
-	ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "rx skb: ",
-			info->skb->data, info->skb->len);
-
-	ieee80211_rx(ar->hw, info->skb);
-}
-
 struct ath10k_peer *ath10k_peer_find(struct ath10k *ar, int vdev_id,
 				     const u8 *addr)
 {
diff --git a/drivers/net/wireless/ath/ath10k/txrx.h b/drivers/net/wireless/ath/ath10k/txrx.h
index 356dc9c04c9e..aee3e20058f8 100644
--- a/drivers/net/wireless/ath/ath10k/txrx.h
+++ b/drivers/net/wireless/ath/ath10k/txrx.h
@@ -21,7 +21,6 @@
 
 void ath10k_txrx_tx_unref(struct ath10k_htt *htt,
 			  const struct htt_tx_done *tx_done);
-void ath10k_process_rx(struct ath10k *ar, struct htt_rx_info *info);
 
 struct ath10k_peer *ath10k_peer_find(struct ath10k *ar, int vdev_id,
 				     const u8 *addr);

From cfadd9ba9aafa3c41ddb834ffa43403d24a68685 Mon Sep 17 00:00:00 2001
From: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Date: Mon, 24 Mar 2014 21:23:16 +0100
Subject: [PATCH 17/48] ath10k: rename process_rx_rates to
 ath10k_htt_rx_h_rates

No functional changes.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/htt_rx.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index c07fc8f134e8..fd14c3a1e149 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -655,9 +655,9 @@ static const u8 rx_legacy_rate_idx[] = {
 	5,	/* 0x0F  - 9Mbps   */
 };
 
-static void process_rx_rates(struct ath10k *ar, struct htt_rx_info *info,
-			     enum ieee80211_band band,
-			     struct ieee80211_rx_status *status)
+static void ath10k_htt_rx_h_rates(struct ath10k *ar, struct htt_rx_info *info,
+				  enum ieee80211_band band,
+				  struct ieee80211_rx_status *status)
 {
 	u8 cck, rate, rate_idx, bw, sgi, mcs, nss;
 	u8 info0 = info->rate.info0;
@@ -789,7 +789,7 @@ static void ath10k_process_rx(struct ath10k *ar, struct htt_rx_info *info)
 		return;
 	}
 
-	process_rx_rates(ar, info, ch->band, status);
+	ath10k_htt_rx_h_rates(ar, info, ch->band, status);
 	status->band = ch->band;
 	status->freq = ch->center_freq;
 

From 8f739db0c4bd3dccd70c1e5a6be918ec7e44c0d3 Mon Sep 17 00:00:00 2001
From: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Date: Mon, 24 Mar 2014 21:23:17 +0100
Subject: [PATCH 18/48] ath10k: introduce ieee80211_rx_status to htt_rx_info

Will be used as a template, and final storage for
rx_status.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/htt.h    | 2 ++
 drivers/net/wireless/ath/ath10k/htt_rx.c | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/htt.h b/drivers/net/wireless/ath/ath10k/htt.h
index 654867fc1ae7..e80f0330fd28 100644
--- a/drivers/net/wireless/ath/ath10k/htt.h
+++ b/drivers/net/wireless/ath/ath10k/htt.h
@@ -21,6 +21,7 @@
 #include <linux/bug.h>
 #include <linux/interrupt.h>
 #include <linux/dmapool.h>
+#include <net/mac80211.h>
 
 #include "htc.h"
 #include "rx_desc.h"
@@ -1174,6 +1175,7 @@ struct htt_peer_unmap_event {
 
 struct htt_rx_info {
 	struct sk_buff *skb;
+	struct ieee80211_rx_status rx_status;
 	enum htt_rx_mpdu_status status;
 	enum htt_rx_mpdu_encrypt_type encrypt_type;
 	s8 signal;
diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index fd14c3a1e149..f18e41cd2736 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -756,7 +756,7 @@ static void ath10k_process_rx(struct ath10k *ar, struct htt_rx_info *info)
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)info->skb->data;
 
 	status = IEEE80211_SKB_RXCB(info->skb);
-	memset(status, 0, sizeof(*status));
+	memcpy(status, &info->rx_status, sizeof(*status));
 
 	if (info->encrypt_type != HTT_RX_MPDU_ENCRYPT_NONE) {
 		status->flag |= RX_FLAG_DECRYPTED | RX_FLAG_IV_STRIPPED |

From 36653f050b8083abc7b2ebfffbac7e68d85e2d7c Mon Sep 17 00:00:00 2001
From: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Date: Mon, 24 Mar 2014 21:23:18 +0100
Subject: [PATCH 19/48] ath10k: setup rx channel per ppdu

Setup band and frequency in ieee80211_rx_status
only once - for ppdu.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/htt_rx.c | 51 +++++++++++++++---------
 1 file changed, 33 insertions(+), 18 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index f18e41cd2736..4ca19f93b021 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -749,10 +749,29 @@ static void ath10k_htt_rx_h_rates(struct ath10k *ar, struct htt_rx_info *info,
 	}
 }
 
+static bool ath10k_htt_rx_h_channel(struct ath10k *ar,
+				    struct ieee80211_rx_status *status)
+{
+	struct ieee80211_channel *ch;
+
+	spin_lock_bh(&ar->data_lock);
+	ch = ar->scan_channel;
+	if (!ch)
+		ch = ar->rx_channel;
+	spin_unlock_bh(&ar->data_lock);
+
+	if (!ch)
+		return false;
+
+	status->band = ch->band;
+	status->freq = ch->center_freq;
+
+	return true;
+}
+
 static void ath10k_process_rx(struct ath10k *ar, struct htt_rx_info *info)
 {
 	struct ieee80211_rx_status *status;
-	struct ieee80211_channel *ch;
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)info->skb->data;
 
 	status = IEEE80211_SKB_RXCB(info->skb);
@@ -777,21 +796,7 @@ static void ath10k_process_rx(struct ath10k *ar, struct htt_rx_info *info)
 
 	status->signal = info->signal;
 
-	spin_lock_bh(&ar->data_lock);
-	ch = ar->scan_channel;
-	if (!ch)
-		ch = ar->rx_channel;
-	spin_unlock_bh(&ar->data_lock);
-
-	if (!ch) {
-		ath10k_warn("no channel configured; ignoring frame!\n");
-		dev_kfree_skb_any(info->skb);
-		return;
-	}
-
-	ath10k_htt_rx_h_rates(ar, info, ch->band, status);
-	status->band = ch->band;
-	status->freq = ch->center_freq;
+	ath10k_htt_rx_h_rates(ar, info, status->band, status);
 
 	if (info->rate.info0 & HTT_RX_INDICATION_INFO0_END_VALID) {
 		/* TSF available only in 32-bit */
@@ -1137,7 +1142,8 @@ static int ath10k_unchain_msdu(struct sk_buff *msdu_head)
 
 static bool ath10k_htt_rx_amsdu_allowed(struct ath10k_htt *htt,
 					struct sk_buff *head,
-					struct htt_rx_info *info)
+					struct htt_rx_info *info,
+					bool channel_set)
 {
 	enum htt_rx_mpdu_status status = info->status;
 
@@ -1158,6 +1164,11 @@ static bool ath10k_htt_rx_amsdu_allowed(struct ath10k_htt *htt,
 		return false;
 	}
 
+	if (!channel_set) {
+		ath10k_warn("no channel configured; ignoring frame!\n");
+		return false;
+	}
+
 	/* Skip mgmt frames while we handle this in WMI */
 	if (status == HTT_RX_IND_MPDU_STATUS_MGMT_CTRL ||
 	    ath10k_htt_rx_is_mgmt(head)) {
@@ -1193,6 +1204,7 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 	int num_mpdu_ranges;
 	int fw_desc_len;
 	u8 *fw_desc;
+	bool channel_set;
 	int i, j;
 
 	lockdep_assert_held(&htt->rx_ring.lock);
@@ -1210,6 +1222,8 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 	info.signal  = ATH10K_DEFAULT_NOISE_FLOOR;
 	info.signal += rx->ppdu.combined_rssi;
 
+	channel_set = ath10k_htt_rx_h_channel(htt->ar, &info.rx_status);
+
 	info.rate.info0 = rx->ppdu.info0;
 	info.rate.info1 = __le32_to_cpu(rx->ppdu.info1);
 	info.rate.info2 = __le32_to_cpu(rx->ppdu.info2);
@@ -1236,7 +1250,8 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 							 &msdu_tail);
 
 			if (!ath10k_htt_rx_amsdu_allowed(htt, msdu_head,
-							 &info)) {
+							 &info,
+							 channel_set)) {
 				ath10k_htt_rx_free_msdu_chain(msdu_head);
 				continue;
 			}

From 87326c97b8a49fb8ec1cc4abddbfddc8a963d665 Mon Sep 17 00:00:00 2001
From: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Date: Mon, 24 Mar 2014 21:23:19 +0100
Subject: [PATCH 20/48] ath10k: kill not needed fields from htt_rx_info

Kill rates, tsf, fcs_err, mic_err, amsdu_more, encrypt_type, signal
from htt_rx_info and setup this directly in ieee80211_rx_status.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/htt.h    |  13 ---
 drivers/net/wireless/ath/ath10k/htt_rx.c | 136 ++++++++++++-----------
 2 files changed, 74 insertions(+), 75 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/htt.h b/drivers/net/wireless/ath/ath10k/htt.h
index e80f0330fd28..870f807c90ac 100644
--- a/drivers/net/wireless/ath/ath10k/htt.h
+++ b/drivers/net/wireless/ath/ath10k/htt.h
@@ -1176,19 +1176,6 @@ struct htt_peer_unmap_event {
 struct htt_rx_info {
 	struct sk_buff *skb;
 	struct ieee80211_rx_status rx_status;
-	enum htt_rx_mpdu_status status;
-	enum htt_rx_mpdu_encrypt_type encrypt_type;
-	s8 signal;
-	struct {
-		u8 info0;
-		u32 info1;
-		u32 info2;
-	} rate;
-
-	u32 tsf;
-	bool fcs_err;
-	bool amsdu_more;
-	bool mic_err;
 };
 
 struct ath10k_htt_txbuf {
diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index 4ca19f93b021..a994a4f9dc1a 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -655,14 +655,12 @@ static const u8 rx_legacy_rate_idx[] = {
 	5,	/* 0x0F  - 9Mbps   */
 };
 
-static void ath10k_htt_rx_h_rates(struct ath10k *ar, struct htt_rx_info *info,
+static void ath10k_htt_rx_h_rates(struct ath10k *ar,
 				  enum ieee80211_band band,
+				  u8 info0, u32 info1, u32 info2,
 				  struct ieee80211_rx_status *status)
 {
 	u8 cck, rate, rate_idx, bw, sgi, mcs, nss;
-	u8 info0 = info->rate.info0;
-	u32 info1 = info->rate.info1;
-	u32 info2 = info->rate.info2;
 	u8 preamble = 0;
 
 	/* Check if valid fields */
@@ -749,6 +747,27 @@ static void ath10k_htt_rx_h_rates(struct ath10k *ar, struct htt_rx_info *info,
 	}
 }
 
+static void ath10k_htt_rx_h_protected(struct ath10k_htt *htt,
+				      struct htt_rx_info *info,
+				      enum htt_rx_mpdu_encrypt_type enctype)
+{
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)info->skb->data;
+
+
+	if (enctype == HTT_RX_MPDU_ENCRYPT_NONE) {
+		info->rx_status.flag &= ~(RX_FLAG_DECRYPTED |
+					  RX_FLAG_IV_STRIPPED |
+					  RX_FLAG_MMIC_STRIPPED);
+		return;
+	}
+
+	info->rx_status.flag |= RX_FLAG_DECRYPTED |
+				RX_FLAG_IV_STRIPPED |
+				RX_FLAG_MMIC_STRIPPED;
+	hdr->frame_control = __cpu_to_le16(__le16_to_cpu(hdr->frame_control) &
+					   ~IEEE80211_FCTL_PROTECTED);
+}
+
 static bool ath10k_htt_rx_h_channel(struct ath10k *ar,
 				    struct ieee80211_rx_status *status)
 {
@@ -772,38 +791,10 @@ static bool ath10k_htt_rx_h_channel(struct ath10k *ar,
 static void ath10k_process_rx(struct ath10k *ar, struct htt_rx_info *info)
 {
 	struct ieee80211_rx_status *status;
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)info->skb->data;
 
 	status = IEEE80211_SKB_RXCB(info->skb);
 	memcpy(status, &info->rx_status, sizeof(*status));
 
-	if (info->encrypt_type != HTT_RX_MPDU_ENCRYPT_NONE) {
-		status->flag |= RX_FLAG_DECRYPTED | RX_FLAG_IV_STRIPPED |
-				RX_FLAG_MMIC_STRIPPED;
-		hdr->frame_control = __cpu_to_le16(
-				__le16_to_cpu(hdr->frame_control) &
-				~IEEE80211_FCTL_PROTECTED);
-	}
-
-	if (info->mic_err)
-		status->flag |= RX_FLAG_MMIC_ERROR;
-
-	if (info->fcs_err)
-		status->flag |= RX_FLAG_FAILED_FCS_CRC;
-
-	if (info->amsdu_more)
-		status->flag |= RX_FLAG_AMSDU_MORE;
-
-	status->signal = info->signal;
-
-	ath10k_htt_rx_h_rates(ar, info, status->band, status);
-
-	if (info->rate.info0 & HTT_RX_INDICATION_INFO0_END_VALID) {
-		/* TSF available only in 32-bit */
-		status->mactime = info->tsf & 0xffffffff;
-		status->flag |= RX_FLAG_MACTIME_END;
-	}
-
 	ath10k_dbg(ATH10K_DBG_DATA,
 		   "rx skb %p len %u %s%s%s%s%s %srate_idx %u vht_nss %u freq %u band %u flag 0x%x fcs-err %i\n",
 		   info->skb,
@@ -817,7 +808,8 @@ static void ath10k_process_rx(struct ath10k *ar, struct htt_rx_info *info)
 		   status->rate_idx,
 		   status->vht_nss,
 		   status->freq,
-		   status->band, status->flag, info->fcs_err);
+		   status->band, status->flag,
+		   !!(status->flag & RX_FLAG_FAILED_FCS_CRC));
 	ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "rx skb: ",
 			info->skb->data, info->skb->len);
 
@@ -917,12 +909,14 @@ static void ath10k_htt_rx_amsdu(struct ath10k_htt *htt,
 		}
 
 		info->skb = skb;
-		info->encrypt_type = enctype;
+		ath10k_htt_rx_h_protected(htt, info, enctype);
 		skb = skb->next;
 		info->skb->next = NULL;
 
 		if (skb)
-			info->amsdu_more = true;
+			info->rx_status.flag |= RX_FLAG_AMSDU_MORE;
+		else
+			info->rx_status.flag &= ~RX_FLAG_AMSDU_MORE;
 
 		ath10k_process_rx(htt->ar, info);
 	}
@@ -997,7 +991,7 @@ static void ath10k_htt_rx_msdu(struct ath10k_htt *htt, struct htt_rx_info *info)
 	}
 
 	info->skb = skb;
-	info->encrypt_type = enctype;
+	ath10k_htt_rx_h_protected(htt, info, enctype);
 
 	ath10k_process_rx(htt->ar, info);
 }
@@ -1142,11 +1136,9 @@ static int ath10k_unchain_msdu(struct sk_buff *msdu_head)
 
 static bool ath10k_htt_rx_amsdu_allowed(struct ath10k_htt *htt,
 					struct sk_buff *head,
-					struct htt_rx_info *info,
+					enum htt_rx_mpdu_status status,
 					bool channel_set)
 {
-	enum htt_rx_mpdu_status status = info->status;
-
 	if (!head) {
 		ath10k_warn("htt rx no data!\n");
 		return false;
@@ -1200,11 +1192,12 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 {
 	struct htt_rx_info info;
 	struct htt_rx_indication_mpdu_range *mpdu_ranges;
+	enum htt_rx_mpdu_status status;
 	struct ieee80211_hdr *hdr;
 	int num_mpdu_ranges;
 	int fw_desc_len;
 	u8 *fw_desc;
-	bool channel_set;
+	bool channel_set, fcs_err, mic_err;
 	int i, j;
 
 	lockdep_assert_held(&htt->rx_ring.lock);
@@ -1219,15 +1212,25 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 	mpdu_ranges = htt_rx_ind_get_mpdu_ranges(rx);
 
 	/* Fill this once, while this is per-ppdu */
-	info.signal  = ATH10K_DEFAULT_NOISE_FLOOR;
-	info.signal += rx->ppdu.combined_rssi;
+	info.rx_status.signal  = ATH10K_DEFAULT_NOISE_FLOOR;
+	info.rx_status.signal += rx->ppdu.combined_rssi;
+
+	if (rx->ppdu.info0 & HTT_RX_INDICATION_INFO0_END_VALID) {
+		/* TSF available only in 32-bit */
+		info.rx_status.mactime =
+				__le32_to_cpu(rx->ppdu.tsf) & 0xffffffff;
+		info.rx_status.flag |= RX_FLAG_MACTIME_END;
+	}
 
 	channel_set = ath10k_htt_rx_h_channel(htt->ar, &info.rx_status);
 
-	info.rate.info0 = rx->ppdu.info0;
-	info.rate.info1 = __le32_to_cpu(rx->ppdu.info1);
-	info.rate.info2 = __le32_to_cpu(rx->ppdu.info2);
-	info.tsf = __le32_to_cpu(rx->ppdu.tsf);
+	if (channel_set) {
+		ath10k_htt_rx_h_rates(htt->ar, info.rx_status.band,
+				      rx->ppdu.info0,
+				      __le32_to_cpu(rx->ppdu.info1),
+				      __le32_to_cpu(rx->ppdu.info2),
+				      &info.rx_status);
+	}
 
 	ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "htt rx ind: ",
 			rx, sizeof(*rx) +
@@ -1235,7 +1238,7 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 				num_mpdu_ranges));
 
 	for (i = 0; i < num_mpdu_ranges; i++) {
-		info.status = mpdu_ranges[i].mpdu_range_status;
+		status = mpdu_ranges[i].mpdu_range_status;
 
 		for (j = 0; j < mpdu_ranges[i].mpdu_count; j++) {
 			struct sk_buff *msdu_head, *msdu_tail;
@@ -1250,7 +1253,7 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 							 &msdu_tail);
 
 			if (!ath10k_htt_rx_amsdu_allowed(htt, msdu_head,
-							 &info,
+							 status,
 							 channel_set)) {
 				ath10k_htt_rx_free_msdu_chain(msdu_head);
 				continue;
@@ -1263,14 +1266,24 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 			}
 
 			info.skb     = msdu_head;
-			info.fcs_err = ath10k_htt_rx_has_fcs_err(msdu_head);
-			info.mic_err = ath10k_htt_rx_has_mic_err(msdu_head);
 
-			if (info.fcs_err)
+			fcs_err = ath10k_htt_rx_has_fcs_err(msdu_head);
+			if (fcs_err)
+				info.rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
+			else
+				info.rx_status.flag &= ~RX_FLAG_FAILED_FCS_CRC;
+
+			mic_err = ath10k_htt_rx_has_mic_err(msdu_head);
+			if (mic_err)
+				info.rx_status.flag |= RX_FLAG_MMIC_ERROR;
+			else
+				info.rx_status.flag &= ~RX_FLAG_MMIC_ERROR;
+
+			if (fcs_err)
 				ath10k_dbg(ATH10K_DBG_HTT,
 					   "htt rx has FCS err\n");
 
-			if (info.mic_err)
+			if (mic_err)
 				ath10k_dbg(ATH10K_DBG_HTT,
 					   "htt rx has MIC err\n");
 
@@ -1290,6 +1303,7 @@ static void ath10k_htt_rx_frag_handler(struct ath10k_htt *htt,
 				struct htt_rx_fragment_indication *frag)
 {
 	struct sk_buff *msdu_head, *msdu_tail;
+	enum htt_rx_mpdu_encrypt_type enctype;
 	struct htt_rx_desc *rxd;
 	enum rx_msdu_decap_format fmt;
 	struct htt_rx_info info = {};
@@ -1343,15 +1357,13 @@ static void ath10k_htt_rx_frag_handler(struct ath10k_htt *htt,
 	}
 
 	info.skb = msdu_head;
-	info.status = HTT_RX_IND_MPDU_STATUS_OK;
-	info.encrypt_type = MS(__le32_to_cpu(rxd->mpdu_start.info0),
-				RX_MPDU_START_INFO0_ENCRYPT_TYPE);
+	enctype = MS(__le32_to_cpu(rxd->mpdu_start.info0),
+		     RX_MPDU_START_INFO0_ENCRYPT_TYPE);
+	ath10k_htt_rx_h_protected(htt, &info, enctype);
 	info.skb->ip_summed = ath10k_htt_rx_get_csum_state(info.skb);
 
-	if (tkip_mic_err) {
+	if (tkip_mic_err)
 		ath10k_warn("tkip mic error\n");
-		info.status = HTT_RX_IND_MPDU_STATUS_TKIP_MIC_ERR;
-	}
 
 	if (decrypt_err) {
 		ath10k_warn("decryption err in fragmented rx\n");
@@ -1359,9 +1371,9 @@ static void ath10k_htt_rx_frag_handler(struct ath10k_htt *htt,
 		goto end;
 	}
 
-	if (info.encrypt_type != HTT_RX_MPDU_ENCRYPT_NONE) {
+	if (enctype != HTT_RX_MPDU_ENCRYPT_NONE) {
 		hdrlen = ieee80211_hdrlen(hdr->frame_control);
-		paramlen = ath10k_htt_rx_crypto_param_len(info.encrypt_type);
+		paramlen = ath10k_htt_rx_crypto_param_len(enctype);
 
 		/* It is more efficient to move the header than the payload */
 		memmove((void *)info.skb->data + paramlen,
@@ -1375,11 +1387,11 @@ static void ath10k_htt_rx_frag_handler(struct ath10k_htt *htt,
 	trim  = 4;
 
 	/* remove crypto trailer */
-	trim += ath10k_htt_rx_crypto_tail_len(info.encrypt_type);
+	trim += ath10k_htt_rx_crypto_tail_len(enctype);
 
 	/* last fragment of TKIP frags has MIC */
 	if (!ieee80211_has_morefrags(hdr->frame_control) &&
-	    info.encrypt_type == HTT_RX_MPDU_ENCRYPT_TKIP_WPA)
+	    enctype == HTT_RX_MPDU_ENCRYPT_TKIP_WPA)
 		trim += 8;
 
 	if (trim > info.skb->len) {

From d84dd60f2ccd6d17965adeb30435770b6f7b6608 Mon Sep 17 00:00:00 2001
From: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Date: Mon, 24 Mar 2014 21:23:20 +0100
Subject: [PATCH 21/48] ath10k: return error when ath10k_htt_rx_amsdu_pop()
 fail

Return error when rx_amsdu_pop() will fail.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/htt_rx.c | 50 ++++++++++++------------
 1 file changed, 26 insertions(+), 24 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index a994a4f9dc1a..64abc2ab6041 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -297,6 +297,7 @@ static void ath10k_htt_rx_free_msdu_chain(struct sk_buff *skb)
 	}
 }
 
+/* return: < 0 fatal error, 0 - non chained msdu, 1 chained msdu */
 static int ath10k_htt_rx_amsdu_pop(struct ath10k_htt *htt,
 				   u8 **fw_desc, int *fw_desc_len,
 				   struct sk_buff **head_msdu,
@@ -310,7 +311,7 @@ static int ath10k_htt_rx_amsdu_pop(struct ath10k_htt *htt,
 
 	if (htt->rx_confused) {
 		ath10k_warn("htt is confused. refusing rx\n");
-		return 0;
+		return -1;
 	}
 
 	msdu = *head_msdu = ath10k_htt_rx_netbuf_pop(htt);
@@ -442,6 +443,9 @@ static int ath10k_htt_rx_amsdu_pop(struct ath10k_htt *htt,
 	}
 	*tail_msdu = msdu;
 
+	if (*head_msdu == NULL)
+		msdu_chaining = -1;
+
 	/*
 	 * Don't refill the ring yet.
 	 *
@@ -1139,11 +1143,6 @@ static bool ath10k_htt_rx_amsdu_allowed(struct ath10k_htt *htt,
 					enum htt_rx_mpdu_status status,
 					bool channel_set)
 {
-	if (!head) {
-		ath10k_warn("htt rx no data!\n");
-		return false;
-	}
-
 	if (head->len == 0) {
 		ath10k_dbg(ATH10K_DBG_HTT,
 			   "htt rx dropping due to zero-len\n");
@@ -1199,6 +1198,7 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 	u8 *fw_desc;
 	bool channel_set, fcs_err, mic_err;
 	int i, j;
+	int ret;
 
 	lockdep_assert_held(&htt->rx_ring.lock);
 
@@ -1242,15 +1242,21 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 
 		for (j = 0; j < mpdu_ranges[i].mpdu_count; j++) {
 			struct sk_buff *msdu_head, *msdu_tail;
-			int msdu_chaining;
 
 			msdu_head = NULL;
 			msdu_tail = NULL;
-			msdu_chaining = ath10k_htt_rx_amsdu_pop(htt,
-							 &fw_desc,
-							 &fw_desc_len,
-							 &msdu_head,
-							 &msdu_tail);
+			ret = ath10k_htt_rx_amsdu_pop(htt,
+						      &fw_desc,
+						      &fw_desc_len,
+						      &msdu_head,
+						      &msdu_tail);
+
+			if (ret < 0) {
+				ath10k_warn("failed to pop amsdu from htt rx ring %d\n",
+					    ret);
+				ath10k_htt_rx_free_msdu_chain(msdu_head);
+				continue;
+			}
 
 			if (!ath10k_htt_rx_amsdu_allowed(htt, msdu_head,
 							 status,
@@ -1259,8 +1265,8 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 				continue;
 			}
 
-			if (msdu_chaining &&
-			    (ath10k_unchain_msdu(msdu_head) < 0)) {
+			if (ret > 0 &&
+			    ath10k_unchain_msdu(msdu_head) < 0) {
 				ath10k_htt_rx_free_msdu_chain(msdu_head);
 				continue;
 			}
@@ -1308,7 +1314,7 @@ static void ath10k_htt_rx_frag_handler(struct ath10k_htt *htt,
 	enum rx_msdu_decap_format fmt;
 	struct htt_rx_info info = {};
 	struct ieee80211_hdr *hdr;
-	int msdu_chaining;
+	int ret;
 	bool tkip_mic_err;
 	bool decrypt_err;
 	u8 *fw_desc;
@@ -1322,19 +1328,15 @@ static void ath10k_htt_rx_frag_handler(struct ath10k_htt *htt,
 	msdu_tail = NULL;
 
 	spin_lock_bh(&htt->rx_ring.lock);
-	msdu_chaining = ath10k_htt_rx_amsdu_pop(htt, &fw_desc, &fw_desc_len,
-						&msdu_head, &msdu_tail);
+	ret = ath10k_htt_rx_amsdu_pop(htt, &fw_desc, &fw_desc_len,
+				      &msdu_head, &msdu_tail);
 	spin_unlock_bh(&htt->rx_ring.lock);
 
 	ath10k_dbg(ATH10K_DBG_HTT_DUMP, "htt rx frag ahead\n");
 
-	if (!msdu_head) {
-		ath10k_warn("htt rx frag no data\n");
-		return;
-	}
-
-	if (msdu_chaining || msdu_head != msdu_tail) {
-		ath10k_warn("aggregation with fragmentation?!\n");
+	if (ret) {
+		ath10k_warn("failed to pop amsdu from httr rx ring for fragmented rx %d\n",
+			    ret);
 		ath10k_htt_rx_free_msdu_chain(msdu_head);
 		return;
 	}

From 78433f96534b107925da960bc800071b9fa8a397 Mon Sep 17 00:00:00 2001
From: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Date: Mon, 24 Mar 2014 21:23:21 +0100
Subject: [PATCH 22/48] ath10k: improve way we play with attention flags

Remove almost the same code, and do only once
__le32_to_cpu() conversion.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/htt_rx.c | 94 +++++-------------------
 1 file changed, 19 insertions(+), 75 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index 64abc2ab6041..5dfda22d9f53 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -800,7 +800,7 @@ static void ath10k_process_rx(struct ath10k *ar, struct htt_rx_info *info)
 	memcpy(status, &info->rx_status, sizeof(*status));
 
 	ath10k_dbg(ATH10K_DBG_DATA,
-		   "rx skb %p len %u %s%s%s%s%s %srate_idx %u vht_nss %u freq %u band %u flag 0x%x fcs-err %i\n",
+		   "rx skb %p len %u %s%s%s%s%s %srate_idx %u vht_nss %u freq %u band %u flag 0x%x fcs-err %imic-err %i\n",
 		   info->skb,
 		   info->skb->len,
 		   status->flag == 0 ? "legacy" : "",
@@ -813,7 +813,8 @@ static void ath10k_process_rx(struct ath10k *ar, struct htt_rx_info *info)
 		   status->vht_nss,
 		   status->freq,
 		   status->band, status->flag,
-		   !!(status->flag & RX_FLAG_FAILED_FCS_CRC));
+		   !!(status->flag & RX_FLAG_FAILED_FCS_CRC),
+		   !!(status->flag & RX_FLAG_MMIC_ERROR));
 	ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "rx skb: ",
 			info->skb->data, info->skb->len);
 
@@ -1000,62 +1001,6 @@ static void ath10k_htt_rx_msdu(struct ath10k_htt *htt, struct htt_rx_info *info)
 	ath10k_process_rx(htt->ar, info);
 }
 
-static bool ath10k_htt_rx_has_decrypt_err(struct sk_buff *skb)
-{
-	struct htt_rx_desc *rxd;
-	u32 flags;
-
-	rxd = (void *)skb->data - sizeof(*rxd);
-	flags = __le32_to_cpu(rxd->attention.flags);
-
-	if (flags & RX_ATTENTION_FLAGS_DECRYPT_ERR)
-		return true;
-
-	return false;
-}
-
-static bool ath10k_htt_rx_has_fcs_err(struct sk_buff *skb)
-{
-	struct htt_rx_desc *rxd;
-	u32 flags;
-
-	rxd = (void *)skb->data - sizeof(*rxd);
-	flags = __le32_to_cpu(rxd->attention.flags);
-
-	if (flags & RX_ATTENTION_FLAGS_FCS_ERR)
-		return true;
-
-	return false;
-}
-
-static bool ath10k_htt_rx_has_mic_err(struct sk_buff *skb)
-{
-	struct htt_rx_desc *rxd;
-	u32 flags;
-
-	rxd = (void *)skb->data - sizeof(*rxd);
-	flags = __le32_to_cpu(rxd->attention.flags);
-
-	if (flags & RX_ATTENTION_FLAGS_TKIP_MIC_ERR)
-		return true;
-
-	return false;
-}
-
-static bool ath10k_htt_rx_is_mgmt(struct sk_buff *skb)
-{
-	struct htt_rx_desc *rxd;
-	u32 flags;
-
-	rxd = (void *)skb->data - sizeof(*rxd);
-	flags = __le32_to_cpu(rxd->attention.flags);
-
-	if (flags & RX_ATTENTION_FLAGS_MGMT_TYPE)
-		return true;
-
-	return false;
-}
-
 static int ath10k_htt_rx_get_csum_state(struct sk_buff *skb)
 {
 	struct htt_rx_desc *rxd;
@@ -1141,7 +1086,8 @@ static int ath10k_unchain_msdu(struct sk_buff *msdu_head)
 static bool ath10k_htt_rx_amsdu_allowed(struct ath10k_htt *htt,
 					struct sk_buff *head,
 					enum htt_rx_mpdu_status status,
-					bool channel_set)
+					bool channel_set,
+					u32 attention)
 {
 	if (head->len == 0) {
 		ath10k_dbg(ATH10K_DBG_HTT,
@@ -1149,7 +1095,7 @@ static bool ath10k_htt_rx_amsdu_allowed(struct ath10k_htt *htt,
 		return false;
 	}
 
-	if (ath10k_htt_rx_has_decrypt_err(head)) {
+	if (attention & RX_ATTENTION_FLAGS_DECRYPT_ERR) {
 		ath10k_dbg(ATH10K_DBG_HTT,
 			   "htt rx dropping due to decrypt-err\n");
 		return false;
@@ -1162,7 +1108,7 @@ static bool ath10k_htt_rx_amsdu_allowed(struct ath10k_htt *htt,
 
 	/* Skip mgmt frames while we handle this in WMI */
 	if (status == HTT_RX_IND_MPDU_STATUS_MGMT_CTRL ||
-	    ath10k_htt_rx_is_mgmt(head)) {
+	    attention & RX_ATTENTION_FLAGS_MGMT_TYPE) {
 		ath10k_dbg(ATH10K_DBG_HTT, "htt rx mgmt ctrl\n");
 		return false;
 	}
@@ -1191,12 +1137,14 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 {
 	struct htt_rx_info info;
 	struct htt_rx_indication_mpdu_range *mpdu_ranges;
+	struct htt_rx_desc *rxd;
 	enum htt_rx_mpdu_status status;
 	struct ieee80211_hdr *hdr;
 	int num_mpdu_ranges;
+	u32 attention;
 	int fw_desc_len;
 	u8 *fw_desc;
-	bool channel_set, fcs_err, mic_err;
+	bool channel_set;
 	int i, j;
 	int ret;
 
@@ -1258,9 +1206,15 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 				continue;
 			}
 
+			rxd = container_of((void *)msdu_head->data,
+					   struct htt_rx_desc,
+					   msdu_payload);
+			attention = __le32_to_cpu(rxd->attention.flags);
+
 			if (!ath10k_htt_rx_amsdu_allowed(htt, msdu_head,
 							 status,
-							 channel_set)) {
+							 channel_set,
+							 attention)) {
 				ath10k_htt_rx_free_msdu_chain(msdu_head);
 				continue;
 			}
@@ -1273,26 +1227,16 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 
 			info.skb     = msdu_head;
 
-			fcs_err = ath10k_htt_rx_has_fcs_err(msdu_head);
-			if (fcs_err)
+			if (attention & RX_ATTENTION_FLAGS_FCS_ERR)
 				info.rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
 			else
 				info.rx_status.flag &= ~RX_FLAG_FAILED_FCS_CRC;
 
-			mic_err = ath10k_htt_rx_has_mic_err(msdu_head);
-			if (mic_err)
+			if (attention & RX_ATTENTION_FLAGS_TKIP_MIC_ERR)
 				info.rx_status.flag |= RX_FLAG_MMIC_ERROR;
 			else
 				info.rx_status.flag &= ~RX_FLAG_MMIC_ERROR;
 
-			if (fcs_err)
-				ath10k_dbg(ATH10K_DBG_HTT,
-					   "htt rx has FCS err\n");
-
-			if (mic_err)
-				ath10k_dbg(ATH10K_DBG_HTT,
-					   "htt rx has MIC err\n");
-
 			hdr = ath10k_htt_rx_skb_get_hdr(msdu_head);
 
 			if (ath10k_htt_rx_hdr_is_amsdu(hdr))

From 85f6d7cfbb2252e1a2882a976a1a46655c858ba4 Mon Sep 17 00:00:00 2001
From: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Date: Mon, 24 Mar 2014 21:23:22 +0100
Subject: [PATCH 23/48] ath10k: finally kill htt_rx_info

Struct htt_rx_info is not needed anymore while
we will use ieee80211_rx_status structure as
a template.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/htt.h    |   5 -
 drivers/net/wireless/ath/ath10k/htt_rx.c | 120 +++++++++++------------
 2 files changed, 60 insertions(+), 65 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/htt.h b/drivers/net/wireless/ath/ath10k/htt.h
index 870f807c90ac..2d669c0266eb 100644
--- a/drivers/net/wireless/ath/ath10k/htt.h
+++ b/drivers/net/wireless/ath/ath10k/htt.h
@@ -1173,11 +1173,6 @@ struct htt_peer_unmap_event {
 	u16 peer_id;
 };
 
-struct htt_rx_info {
-	struct sk_buff *skb;
-	struct ieee80211_rx_status rx_status;
-};
-
 struct ath10k_htt_txbuf {
 	struct htt_data_tx_desc_frag frags[2];
 	struct ath10k_htc_hdr htc_hdr;
diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index 5dfda22d9f53..17f152c1a658 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -752,22 +752,23 @@ static void ath10k_htt_rx_h_rates(struct ath10k *ar,
 }
 
 static void ath10k_htt_rx_h_protected(struct ath10k_htt *htt,
-				      struct htt_rx_info *info,
+				      struct ieee80211_rx_status *rx_status,
+				      struct sk_buff *skb,
 				      enum htt_rx_mpdu_encrypt_type enctype)
 {
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)info->skb->data;
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
 
 
 	if (enctype == HTT_RX_MPDU_ENCRYPT_NONE) {
-		info->rx_status.flag &= ~(RX_FLAG_DECRYPTED |
-					  RX_FLAG_IV_STRIPPED |
-					  RX_FLAG_MMIC_STRIPPED);
+		rx_status->flag &= ~(RX_FLAG_DECRYPTED |
+				     RX_FLAG_IV_STRIPPED |
+				     RX_FLAG_MMIC_STRIPPED);
 		return;
 	}
 
-	info->rx_status.flag |= RX_FLAG_DECRYPTED |
-				RX_FLAG_IV_STRIPPED |
-				RX_FLAG_MMIC_STRIPPED;
+	rx_status->flag |= RX_FLAG_DECRYPTED |
+			   RX_FLAG_IV_STRIPPED |
+			   RX_FLAG_MMIC_STRIPPED;
 	hdr->frame_control = __cpu_to_le16(__le16_to_cpu(hdr->frame_control) &
 					   ~IEEE80211_FCTL_PROTECTED);
 }
@@ -792,17 +793,19 @@ static bool ath10k_htt_rx_h_channel(struct ath10k *ar,
 	return true;
 }
 
-static void ath10k_process_rx(struct ath10k *ar, struct htt_rx_info *info)
+static void ath10k_process_rx(struct ath10k *ar,
+			      struct ieee80211_rx_status *rx_status,
+			      struct sk_buff *skb)
 {
 	struct ieee80211_rx_status *status;
 
-	status = IEEE80211_SKB_RXCB(info->skb);
-	memcpy(status, &info->rx_status, sizeof(*status));
+	status = IEEE80211_SKB_RXCB(skb);
+	*status = *rx_status;
 
 	ath10k_dbg(ATH10K_DBG_DATA,
 		   "rx skb %p len %u %s%s%s%s%s %srate_idx %u vht_nss %u freq %u band %u flag 0x%x fcs-err %imic-err %i\n",
-		   info->skb,
-		   info->skb->len,
+		   skb,
+		   skb->len,
 		   status->flag == 0 ? "legacy" : "",
 		   status->flag & RX_FLAG_HT ? "ht" : "",
 		   status->flag & RX_FLAG_VHT ? "vht" : "",
@@ -816,9 +819,9 @@ static void ath10k_process_rx(struct ath10k *ar, struct htt_rx_info *info)
 		   !!(status->flag & RX_FLAG_FAILED_FCS_CRC),
 		   !!(status->flag & RX_FLAG_MMIC_ERROR));
 	ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "rx skb: ",
-			info->skb->data, info->skb->len);
+			skb->data, skb->len);
 
-	ieee80211_rx(ar->hw, info->skb);
+	ieee80211_rx(ar->hw, skb);
 }
 
 static int ath10k_htt_rx_nwifi_hdrlen(struct ieee80211_hdr *hdr)
@@ -828,11 +831,12 @@ static int ath10k_htt_rx_nwifi_hdrlen(struct ieee80211_hdr *hdr)
 }
 
 static void ath10k_htt_rx_amsdu(struct ath10k_htt *htt,
-				struct htt_rx_info *info)
+				struct ieee80211_rx_status *rx_status,
+				struct sk_buff *skb_in)
 {
 	struct htt_rx_desc *rxd;
+	struct sk_buff *skb = skb_in;
 	struct sk_buff *first;
-	struct sk_buff *skb = info->skb;
 	enum rx_msdu_decap_format fmt;
 	enum htt_rx_mpdu_encrypt_type enctype;
 	struct ieee80211_hdr *hdr;
@@ -913,26 +917,27 @@ static void ath10k_htt_rx_amsdu(struct ath10k_htt *htt,
 			break;
 		}
 
-		info->skb = skb;
-		ath10k_htt_rx_h_protected(htt, info, enctype);
+		skb_in = skb;
+		ath10k_htt_rx_h_protected(htt, rx_status, skb_in, enctype);
 		skb = skb->next;
-		info->skb->next = NULL;
+		skb_in->next = NULL;
 
 		if (skb)
-			info->rx_status.flag |= RX_FLAG_AMSDU_MORE;
+			rx_status->flag |= RX_FLAG_AMSDU_MORE;
 		else
-			info->rx_status.flag &= ~RX_FLAG_AMSDU_MORE;
+			rx_status->flag &= ~RX_FLAG_AMSDU_MORE;
 
-		ath10k_process_rx(htt->ar, info);
+		ath10k_process_rx(htt->ar, rx_status, skb_in);
 	}
 
 	/* FIXME: It might be nice to re-assemble the A-MSDU when there's a
 	 * monitor interface active for sniffing purposes. */
 }
 
-static void ath10k_htt_rx_msdu(struct ath10k_htt *htt, struct htt_rx_info *info)
+static void ath10k_htt_rx_msdu(struct ath10k_htt *htt,
+			       struct ieee80211_rx_status *rx_status,
+			       struct sk_buff *skb)
 {
-	struct sk_buff *skb = info->skb;
 	struct htt_rx_desc *rxd;
 	struct ieee80211_hdr *hdr;
 	enum rx_msdu_decap_format fmt;
@@ -995,10 +1000,9 @@ static void ath10k_htt_rx_msdu(struct ath10k_htt *htt, struct htt_rx_info *info)
 		break;
 	}
 
-	info->skb = skb;
-	ath10k_htt_rx_h_protected(htt, info, enctype);
+	ath10k_htt_rx_h_protected(htt, rx_status, skb, enctype);
 
-	ath10k_process_rx(htt->ar, info);
+	ath10k_process_rx(htt->ar, rx_status, skb);
 }
 
 static int ath10k_htt_rx_get_csum_state(struct sk_buff *skb)
@@ -1135,7 +1139,7 @@ static bool ath10k_htt_rx_amsdu_allowed(struct ath10k_htt *htt,
 static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 				  struct htt_rx_indication *rx)
 {
-	struct htt_rx_info info;
+	struct ieee80211_rx_status rx_status;
 	struct htt_rx_indication_mpdu_range *mpdu_ranges;
 	struct htt_rx_desc *rxd;
 	enum htt_rx_mpdu_status status;
@@ -1150,7 +1154,7 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 
 	lockdep_assert_held(&htt->rx_ring.lock);
 
-	memset(&info, 0, sizeof(info));
+	memset(&rx_status, 0, sizeof(rx_status));
 
 	fw_desc_len = __le16_to_cpu(rx->prefix.fw_rx_desc_bytes);
 	fw_desc = (u8 *)&rx->fw_desc;
@@ -1160,24 +1164,23 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 	mpdu_ranges = htt_rx_ind_get_mpdu_ranges(rx);
 
 	/* Fill this once, while this is per-ppdu */
-	info.rx_status.signal  = ATH10K_DEFAULT_NOISE_FLOOR;
-	info.rx_status.signal += rx->ppdu.combined_rssi;
+	rx_status.signal  = ATH10K_DEFAULT_NOISE_FLOOR;
+	rx_status.signal += rx->ppdu.combined_rssi;
 
 	if (rx->ppdu.info0 & HTT_RX_INDICATION_INFO0_END_VALID) {
 		/* TSF available only in 32-bit */
-		info.rx_status.mactime =
-				__le32_to_cpu(rx->ppdu.tsf) & 0xffffffff;
-		info.rx_status.flag |= RX_FLAG_MACTIME_END;
+		rx_status.mactime = __le32_to_cpu(rx->ppdu.tsf) & 0xffffffff;
+		rx_status.flag |= RX_FLAG_MACTIME_END;
 	}
 
-	channel_set = ath10k_htt_rx_h_channel(htt->ar, &info.rx_status);
+	channel_set = ath10k_htt_rx_h_channel(htt->ar, &rx_status);
 
 	if (channel_set) {
-		ath10k_htt_rx_h_rates(htt->ar, info.rx_status.band,
+		ath10k_htt_rx_h_rates(htt->ar, rx_status.band,
 				      rx->ppdu.info0,
 				      __le32_to_cpu(rx->ppdu.info1),
 				      __le32_to_cpu(rx->ppdu.info2),
-				      &info.rx_status);
+				      &rx_status);
 	}
 
 	ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "htt rx ind: ",
@@ -1225,24 +1228,22 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 				continue;
 			}
 
-			info.skb     = msdu_head;
-
 			if (attention & RX_ATTENTION_FLAGS_FCS_ERR)
-				info.rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
+				rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
 			else
-				info.rx_status.flag &= ~RX_FLAG_FAILED_FCS_CRC;
+				rx_status.flag &= ~RX_FLAG_FAILED_FCS_CRC;
 
 			if (attention & RX_ATTENTION_FLAGS_TKIP_MIC_ERR)
-				info.rx_status.flag |= RX_FLAG_MMIC_ERROR;
+				rx_status.flag |= RX_FLAG_MMIC_ERROR;
 			else
-				info.rx_status.flag &= ~RX_FLAG_MMIC_ERROR;
+				rx_status.flag &= ~RX_FLAG_MMIC_ERROR;
 
 			hdr = ath10k_htt_rx_skb_get_hdr(msdu_head);
 
 			if (ath10k_htt_rx_hdr_is_amsdu(hdr))
-				ath10k_htt_rx_amsdu(htt, &info);
+				ath10k_htt_rx_amsdu(htt, &rx_status, msdu_head);
 			else
-				ath10k_htt_rx_msdu(htt, &info);
+				ath10k_htt_rx_msdu(htt, &rx_status, msdu_head);
 		}
 	}
 
@@ -1256,7 +1257,7 @@ static void ath10k_htt_rx_frag_handler(struct ath10k_htt *htt,
 	enum htt_rx_mpdu_encrypt_type enctype;
 	struct htt_rx_desc *rxd;
 	enum rx_msdu_decap_format fmt;
-	struct htt_rx_info info = {};
+	struct ieee80211_rx_status rx_status = {};
 	struct ieee80211_hdr *hdr;
 	int ret;
 	bool tkip_mic_err;
@@ -1302,18 +1303,17 @@ static void ath10k_htt_rx_frag_handler(struct ath10k_htt *htt,
 		goto end;
 	}
 
-	info.skb = msdu_head;
 	enctype = MS(__le32_to_cpu(rxd->mpdu_start.info0),
 		     RX_MPDU_START_INFO0_ENCRYPT_TYPE);
-	ath10k_htt_rx_h_protected(htt, &info, enctype);
-	info.skb->ip_summed = ath10k_htt_rx_get_csum_state(info.skb);
+	ath10k_htt_rx_h_protected(htt, &rx_status, msdu_head, enctype);
+	msdu_head->ip_summed = ath10k_htt_rx_get_csum_state(msdu_head);
 
 	if (tkip_mic_err)
 		ath10k_warn("tkip mic error\n");
 
 	if (decrypt_err) {
 		ath10k_warn("decryption err in fragmented rx\n");
-		dev_kfree_skb_any(info.skb);
+		dev_kfree_skb_any(msdu_head);
 		goto end;
 	}
 
@@ -1322,11 +1322,11 @@ static void ath10k_htt_rx_frag_handler(struct ath10k_htt *htt,
 		paramlen = ath10k_htt_rx_crypto_param_len(enctype);
 
 		/* It is more efficient to move the header than the payload */
-		memmove((void *)info.skb->data + paramlen,
-			(void *)info.skb->data,
+		memmove((void *)msdu_head->data + paramlen,
+			(void *)msdu_head->data,
 			hdrlen);
-		skb_pull(info.skb, paramlen);
-		hdr = (struct ieee80211_hdr *)info.skb->data;
+		skb_pull(msdu_head, paramlen);
+		hdr = (struct ieee80211_hdr *)msdu_head->data;
 	}
 
 	/* remove trailing FCS */
@@ -1340,17 +1340,17 @@ static void ath10k_htt_rx_frag_handler(struct ath10k_htt *htt,
 	    enctype == HTT_RX_MPDU_ENCRYPT_TKIP_WPA)
 		trim += 8;
 
-	if (trim > info.skb->len) {
+	if (trim > msdu_head->len) {
 		ath10k_warn("htt rx fragment: trailer longer than the frame itself? drop\n");
-		dev_kfree_skb_any(info.skb);
+		dev_kfree_skb_any(msdu_head);
 		goto end;
 	}
 
-	skb_trim(info.skb, info.skb->len - trim);
+	skb_trim(msdu_head, msdu_head->len - trim);
 
 	ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "htt rx frag mpdu: ",
-			info.skb->data, info.skb->len);
-	ath10k_process_rx(htt->ar, &info);
+			msdu_head->data, msdu_head->len);
+	ath10k_process_rx(htt->ar, &rx_status, msdu_head);
 
 end:
 	if (fw_desc_len > 0) {

From 6df92a3d02d37df07459bb9b56b01d3ea854d61d Mon Sep 17 00:00:00 2001
From: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Date: Mon, 24 Mar 2014 21:24:57 +0100
Subject: [PATCH 24/48] ath10k: introduce rx_status htt template

Introduce rx_status htt template instead of
stack version, as a preparation for fix
rssi and rates reporting.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/htt.h    |  3 ++
 drivers/net/wireless/ath/ath10k/htt_rx.c | 36 ++++++++++++------------
 2 files changed, 21 insertions(+), 18 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/htt.h b/drivers/net/wireless/ath/ath10k/htt.h
index 2d669c0266eb..645a563e3fb9 100644
--- a/drivers/net/wireless/ath/ath10k/htt.h
+++ b/drivers/net/wireless/ath/ath10k/htt.h
@@ -1273,6 +1273,9 @@ struct ath10k_htt {
 	struct tasklet_struct txrx_compl_task;
 	struct sk_buff_head tx_compl_q;
 	struct sk_buff_head rx_compl_q;
+
+	/* rx_status template */
+	struct ieee80211_rx_status rx_status;
 };
 
 #define RX_HTT_HDR_STATUS_LEN 64
diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index 17f152c1a658..be25e160d5f0 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -1139,7 +1139,7 @@ static bool ath10k_htt_rx_amsdu_allowed(struct ath10k_htt *htt,
 static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 				  struct htt_rx_indication *rx)
 {
-	struct ieee80211_rx_status rx_status;
+	struct ieee80211_rx_status *rx_status = &htt->rx_status;
 	struct htt_rx_indication_mpdu_range *mpdu_ranges;
 	struct htt_rx_desc *rxd;
 	enum htt_rx_mpdu_status status;
@@ -1154,7 +1154,7 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 
 	lockdep_assert_held(&htt->rx_ring.lock);
 
-	memset(&rx_status, 0, sizeof(rx_status));
+	memset(rx_status, 0, sizeof(*rx_status));
 
 	fw_desc_len = __le16_to_cpu(rx->prefix.fw_rx_desc_bytes);
 	fw_desc = (u8 *)&rx->fw_desc;
@@ -1164,23 +1164,23 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 	mpdu_ranges = htt_rx_ind_get_mpdu_ranges(rx);
 
 	/* Fill this once, while this is per-ppdu */
-	rx_status.signal  = ATH10K_DEFAULT_NOISE_FLOOR;
-	rx_status.signal += rx->ppdu.combined_rssi;
+	rx_status->signal  = ATH10K_DEFAULT_NOISE_FLOOR;
+	rx_status->signal += rx->ppdu.combined_rssi;
 
 	if (rx->ppdu.info0 & HTT_RX_INDICATION_INFO0_END_VALID) {
 		/* TSF available only in 32-bit */
-		rx_status.mactime = __le32_to_cpu(rx->ppdu.tsf) & 0xffffffff;
-		rx_status.flag |= RX_FLAG_MACTIME_END;
+		rx_status->mactime = __le32_to_cpu(rx->ppdu.tsf) & 0xffffffff;
+		rx_status->flag |= RX_FLAG_MACTIME_END;
 	}
 
-	channel_set = ath10k_htt_rx_h_channel(htt->ar, &rx_status);
+	channel_set = ath10k_htt_rx_h_channel(htt->ar, rx_status);
 
 	if (channel_set) {
-		ath10k_htt_rx_h_rates(htt->ar, rx_status.band,
+		ath10k_htt_rx_h_rates(htt->ar, rx_status->band,
 				      rx->ppdu.info0,
 				      __le32_to_cpu(rx->ppdu.info1),
 				      __le32_to_cpu(rx->ppdu.info2),
-				      &rx_status);
+				      rx_status);
 	}
 
 	ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "htt rx ind: ",
@@ -1229,21 +1229,21 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 			}
 
 			if (attention & RX_ATTENTION_FLAGS_FCS_ERR)
-				rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
+				rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
 			else
-				rx_status.flag &= ~RX_FLAG_FAILED_FCS_CRC;
+				rx_status->flag &= ~RX_FLAG_FAILED_FCS_CRC;
 
 			if (attention & RX_ATTENTION_FLAGS_TKIP_MIC_ERR)
-				rx_status.flag |= RX_FLAG_MMIC_ERROR;
+				rx_status->flag |= RX_FLAG_MMIC_ERROR;
 			else
-				rx_status.flag &= ~RX_FLAG_MMIC_ERROR;
+				rx_status->flag &= ~RX_FLAG_MMIC_ERROR;
 
 			hdr = ath10k_htt_rx_skb_get_hdr(msdu_head);
 
 			if (ath10k_htt_rx_hdr_is_amsdu(hdr))
-				ath10k_htt_rx_amsdu(htt, &rx_status, msdu_head);
+				ath10k_htt_rx_amsdu(htt, rx_status, msdu_head);
 			else
-				ath10k_htt_rx_msdu(htt, &rx_status, msdu_head);
+				ath10k_htt_rx_msdu(htt, rx_status, msdu_head);
 		}
 	}
 
@@ -1257,7 +1257,7 @@ static void ath10k_htt_rx_frag_handler(struct ath10k_htt *htt,
 	enum htt_rx_mpdu_encrypt_type enctype;
 	struct htt_rx_desc *rxd;
 	enum rx_msdu_decap_format fmt;
-	struct ieee80211_rx_status rx_status = {};
+	struct ieee80211_rx_status *rx_status = &htt->rx_status;
 	struct ieee80211_hdr *hdr;
 	int ret;
 	bool tkip_mic_err;
@@ -1305,7 +1305,7 @@ static void ath10k_htt_rx_frag_handler(struct ath10k_htt *htt,
 
 	enctype = MS(__le32_to_cpu(rxd->mpdu_start.info0),
 		     RX_MPDU_START_INFO0_ENCRYPT_TYPE);
-	ath10k_htt_rx_h_protected(htt, &rx_status, msdu_head, enctype);
+	ath10k_htt_rx_h_protected(htt, rx_status, msdu_head, enctype);
 	msdu_head->ip_summed = ath10k_htt_rx_get_csum_state(msdu_head);
 
 	if (tkip_mic_err)
@@ -1350,7 +1350,7 @@ static void ath10k_htt_rx_frag_handler(struct ath10k_htt *htt,
 
 	ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "htt rx frag mpdu: ",
 			msdu_head->data, msdu_head->len);
-	ath10k_process_rx(htt->ar, &rx_status, msdu_head);
+	ath10k_process_rx(htt->ar, rx_status, msdu_head);
 
 end:
 	if (fw_desc_len > 0) {

From 2289188c273e2ce6aab9ff7a7972da40a8e82efb Mon Sep 17 00:00:00 2001
From: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Date: Mon, 24 Mar 2014 21:24:58 +0100
Subject: [PATCH 25/48] ath10k: fix rssi and rate reporting

RSSI and RATES fields are valid only when START_VALID
bit is set. So, in current implementation we have to
remember/caclulate them when START_VALID and report the same
when only END_VALID is set.
Currently during heavy traffic we could have:
- 10 packets with START_VALID - correct RSSI and RATES
- 10 packets with END_VALID
- 10 packets with START_VALID - correct RSSI and RATES
- 10 packets with END_VALID
...
Next using monitor interface we will see:
- 10 packets with correct rssi/rates
- 10 packets with rssi=-95/rate=6Mbps

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/htt_rx.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index be25e160d5f0..f7ecc108ef80 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -1154,8 +1154,6 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 
 	lockdep_assert_held(&htt->rx_ring.lock);
 
-	memset(rx_status, 0, sizeof(*rx_status));
-
 	fw_desc_len = __le16_to_cpu(rx->prefix.fw_rx_desc_bytes);
 	fw_desc = (u8 *)&rx->fw_desc;
 
@@ -1164,8 +1162,11 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 	mpdu_ranges = htt_rx_ind_get_mpdu_ranges(rx);
 
 	/* Fill this once, while this is per-ppdu */
-	rx_status->signal  = ATH10K_DEFAULT_NOISE_FLOOR;
-	rx_status->signal += rx->ppdu.combined_rssi;
+	if (rx->ppdu.info0 & HTT_RX_INDICATION_INFO0_START_VALID) {
+		memset(rx_status, 0, sizeof(*rx_status));
+		rx_status->signal  = ATH10K_DEFAULT_NOISE_FLOOR +
+				     rx->ppdu.combined_rssi;
+	}
 
 	if (rx->ppdu.info0 & HTT_RX_INDICATION_INFO0_END_VALID) {
 		/* TSF available only in 32-bit */

From be6546fcc2774640953ee56612343660f6ff26cf Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Tue, 25 Mar 2014 14:18:51 +0200
Subject: [PATCH 26/48] ath10k: unify warning messages in mac.c

Currently there are different styles used for warning messages, unify them to
look similar. The style basically is:

1) start with a verb (if possible)

2) lower case letters

3) use plain english as much as possible

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/mac.c | 260 +++++++++++++-------------
 1 file changed, 131 insertions(+), 129 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 5d3751d75419..58ec5a7dfb34 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -165,7 +165,7 @@ static int ath10k_clear_peer_keys(struct ath10k_vif *arvif,
 			first_errno = ret;
 
 		if (ret)
-			ath10k_warn("could not remove peer wep key %d (%d)\n",
+			ath10k_warn("failed to remove peer wep key %d: %d\n",
 				    i, ret);
 
 		peer->keys[i] = NULL;
@@ -213,7 +213,8 @@ static int ath10k_clear_vdev_key(struct ath10k_vif *arvif,
 			first_errno = ret;
 
 		if (ret)
-			ath10k_warn("could not remove key for %pM\n", addr);
+			ath10k_warn("failed to remove key for %pM: %d\n",
+				    addr, ret);
 	}
 
 	return first_errno;
@@ -323,14 +324,14 @@ static int ath10k_peer_create(struct ath10k *ar, u32 vdev_id, const u8 *addr)
 
 	ret = ath10k_wmi_peer_create(ar, vdev_id, addr);
 	if (ret) {
-		ath10k_warn("Failed to create wmi peer %pM on vdev %i: %i\n",
+		ath10k_warn("failed to create wmi peer %pM on vdev %i: %i\n",
 			    addr, vdev_id, ret);
 		return ret;
 	}
 
 	ret = ath10k_wait_for_peer_created(ar, vdev_id, addr);
 	if (ret) {
-		ath10k_warn("Failed to wait for created wmi peer %pM on vdev %i: %i\n",
+		ath10k_warn("failed to wait for created wmi peer %pM on vdev %i: %i\n",
 			    addr, vdev_id, ret);
 		return ret;
 	}
@@ -351,7 +352,7 @@ static int ath10k_mac_set_kickout(struct ath10k_vif *arvif)
 	ret = ath10k_wmi_pdev_set_param(ar, param,
 					ATH10K_KICKOUT_THRESHOLD);
 	if (ret) {
-		ath10k_warn("Failed to set kickout threshold on vdev %i: %d\n",
+		ath10k_warn("failed to set kickout threshold on vdev %i: %d\n",
 			    arvif->vdev_id, ret);
 		return ret;
 	}
@@ -360,7 +361,7 @@ static int ath10k_mac_set_kickout(struct ath10k_vif *arvif)
 	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, param,
 					ATH10K_KEEPALIVE_MIN_IDLE);
 	if (ret) {
-		ath10k_warn("Failed to set keepalive minimum idle time on vdev %i : %d\n",
+		ath10k_warn("failed to set keepalive minimum idle time on vdev %i: %d\n",
 			    arvif->vdev_id, ret);
 		return ret;
 	}
@@ -369,7 +370,7 @@ static int ath10k_mac_set_kickout(struct ath10k_vif *arvif)
 	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, param,
 					ATH10K_KEEPALIVE_MAX_IDLE);
 	if (ret) {
-		ath10k_warn("Failed to set keepalive maximum idle time on vdev %i: %d\n",
+		ath10k_warn("failed to set keepalive maximum idle time on vdev %i: %d\n",
 			    arvif->vdev_id, ret);
 		return ret;
 	}
@@ -378,7 +379,7 @@ static int ath10k_mac_set_kickout(struct ath10k_vif *arvif)
 	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, param,
 					ATH10K_KEEPALIVE_MAX_UNRESPONSIVE);
 	if (ret) {
-		ath10k_warn("Failed to set keepalive maximum unresponsive time on vdev %i: %d\n",
+		ath10k_warn("failed to set keepalive maximum unresponsive time on vdev %i: %d\n",
 			    arvif->vdev_id, ret);
 		return ret;
 	}
@@ -532,14 +533,14 @@ static int ath10k_vdev_start(struct ath10k_vif *arvif)
 
 	ret = ath10k_wmi_vdev_start(ar, &arg);
 	if (ret) {
-		ath10k_warn("WMI vdev %i start failed: ret %d\n",
+		ath10k_warn("failed to start WMI vdev %i: %d\n",
 			    arg.vdev_id, ret);
 		return ret;
 	}
 
 	ret = ath10k_vdev_setup_sync(ar);
 	if (ret) {
-		ath10k_warn("vdev %i setup failed %d\n",
+		ath10k_warn("failed to synchronise setup for vdev %i: %d\n",
 			    arg.vdev_id, ret);
 		return ret;
 	}
@@ -558,14 +559,14 @@ static int ath10k_vdev_stop(struct ath10k_vif *arvif)
 
 	ret = ath10k_wmi_vdev_stop(ar, arvif->vdev_id);
 	if (ret) {
-		ath10k_warn("WMI vdev %i stop failed: ret %d\n",
+		ath10k_warn("failed to stop WMI vdev %i: %d\n",
 			    arvif->vdev_id, ret);
 		return ret;
 	}
 
 	ret = ath10k_vdev_setup_sync(ar);
 	if (ret) {
-		ath10k_warn("vdev %i setup sync failed %d\n",
+		ath10k_warn("failed to syncronise setup for vdev %i: %d\n",
 			    arvif->vdev_id, ret);
 		return ret;
 	}
@@ -583,7 +584,7 @@ static int ath10k_monitor_start(struct ath10k *ar, int vdev_id)
 	lockdep_assert_held(&ar->conf_mutex);
 
 	if (!ar->monitor_present) {
-		ath10k_warn("mac montor stop -- monitor is not present\n");
+		ath10k_warn("mac monitor stop -- monitor is not present\n");
 		return -EINVAL;
 	}
 
@@ -604,21 +605,21 @@ static int ath10k_monitor_start(struct ath10k *ar, int vdev_id)
 
 	ret = ath10k_wmi_vdev_start(ar, &arg);
 	if (ret) {
-		ath10k_warn("Monitor vdev %i start failed: ret %d\n",
+		ath10k_warn("failed to start Monitor vdev %i: %d\n",
 			    vdev_id, ret);
 		return ret;
 	}
 
 	ret = ath10k_vdev_setup_sync(ar);
 	if (ret) {
-		ath10k_warn("Monitor vdev %i setup failed %d\n",
+		ath10k_warn("failed to syncronise setup for monitor vdev %i: %d\n",
 			    vdev_id, ret);
 		return ret;
 	}
 
 	ret = ath10k_wmi_vdev_up(ar, vdev_id, 0, ar->mac_addr);
 	if (ret) {
-		ath10k_warn("Monitor vdev %i up failed: %d\n",
+		ath10k_warn("failed to put up monitor vdev %i: %d\n",
 			    vdev_id, ret);
 		goto vdev_stop;
 	}
@@ -631,7 +632,7 @@ static int ath10k_monitor_start(struct ath10k *ar, int vdev_id)
 vdev_stop:
 	ret = ath10k_wmi_vdev_stop(ar, ar->monitor_vdev_id);
 	if (ret)
-		ath10k_warn("Monitor vdev %i stop failed: %d\n",
+		ath10k_warn("failed to stop monitor vdev %i after start failure: %d\n",
 			    ar->monitor_vdev_id, ret);
 
 	return ret;
@@ -644,28 +645,28 @@ static int ath10k_monitor_stop(struct ath10k *ar)
 	lockdep_assert_held(&ar->conf_mutex);
 
 	if (!ar->monitor_present) {
-		ath10k_warn("mac montor stop -- monitor is not present\n");
+		ath10k_warn("mac monitor stop -- monitor is not present\n");
 		return -EINVAL;
 	}
 
 	if (!ar->monitor_enabled) {
-		ath10k_warn("mac montor stop -- monitor is not enabled\n");
+		ath10k_warn("mac monitor stop -- monitor is not enabled\n");
 		return -EINVAL;
 	}
 
 	ret = ath10k_wmi_vdev_down(ar, ar->monitor_vdev_id);
 	if (ret)
-		ath10k_warn("Monitor vdev %i down failed: %d\n",
+		ath10k_warn("failed to put down monitor vdev %i: %d\n",
 			    ar->monitor_vdev_id, ret);
 
 	ret = ath10k_wmi_vdev_stop(ar, ar->monitor_vdev_id);
 	if (ret)
-		ath10k_warn("Monitor vdev %i stop failed: %d\n",
+		ath10k_warn("failed to stop monitor vdev %i: %d\n",
 			    ar->monitor_vdev_id, ret);
 
 	ret = ath10k_vdev_setup_sync(ar);
 	if (ret)
-		ath10k_warn("Monitor_down sync failed, vdev %i: %d\n",
+		ath10k_warn("failed to synchronise monitor vdev %i: %d\n",
 			    ar->monitor_vdev_id, ret);
 
 	ar->monitor_enabled = false;
@@ -679,13 +680,13 @@ static int ath10k_monitor_create(struct ath10k *ar)
 	lockdep_assert_held(&ar->conf_mutex);
 
 	if (ar->monitor_present) {
-		ath10k_warn("Monitor mode already enabled\n");
+		ath10k_warn("monitor mode already enabled\n");
 		return 0;
 	}
 
 	bit = ffs(ar->free_vdev_map);
 	if (bit == 0) {
-		ath10k_warn("No free VDEV slots\n");
+		ath10k_warn("no free vdev slots\n");
 		return -ENOMEM;
 	}
 
@@ -696,7 +697,7 @@ static int ath10k_monitor_create(struct ath10k *ar)
 				     WMI_VDEV_TYPE_MONITOR,
 				     0, ar->mac_addr);
 	if (ret) {
-		ath10k_warn("WMI vdev %i monitor create failed: ret %d\n",
+		ath10k_warn("failed to create WMI monitor vdev %i: %d\n",
 			    ar->monitor_vdev_id, ret);
 		goto vdev_fail;
 	}
@@ -726,7 +727,7 @@ static int ath10k_monitor_destroy(struct ath10k *ar)
 
 	ret = ath10k_wmi_vdev_delete(ar, ar->monitor_vdev_id);
 	if (ret) {
-		ath10k_warn("WMI vdev %i monitor delete failed: %d\n",
+		ath10k_warn("failed to delete WMI vdev %i: %d\n",
 			    ar->monitor_vdev_id, ret);
 		return ret;
 	}
@@ -855,7 +856,7 @@ static void ath10k_config_radar_detection(struct ath10k *ar)
 		 * radiation is not allowed, make this channel DFS_UNAVAILABLE
 		 * by indicating that radar was detected.
 		 */
-		ath10k_warn("failed to start CAC (%d)\n", ret);
+		ath10k_warn("failed to start CAC: %d\n", ret);
 		ieee80211_radar_detected(ar->hw);
 	}
 }
@@ -900,7 +901,7 @@ static void ath10k_control_beaconing(struct ath10k_vif *arvif,
 	ret = ath10k_wmi_vdev_up(arvif->ar, arvif->vdev_id, arvif->aid,
 				 arvif->bssid);
 	if (ret) {
-		ath10k_warn("Failed to bring up vdev %d: %i\n",
+		ath10k_warn("failed to bring up vdev %d: %i\n",
 			    arvif->vdev_id, ret);
 		ath10k_vdev_stop(arvif);
 		return;
@@ -924,7 +925,7 @@ static void ath10k_control_ibss(struct ath10k_vif *arvif,
 	if (!info->ibss_joined) {
 		ret = ath10k_peer_delete(arvif->ar, arvif->vdev_id, self_peer);
 		if (ret)
-			ath10k_warn("Failed to delete IBSS self peer:%pM for VDEV:%d ret:%d\n",
+			ath10k_warn("failed to delete IBSS self peer %pM for vdev %d: %d\n",
 				    self_peer, arvif->vdev_id, ret);
 
 		if (is_zero_ether_addr(arvif->bssid))
@@ -933,7 +934,7 @@ static void ath10k_control_ibss(struct ath10k_vif *arvif,
 		ret = ath10k_peer_delete(arvif->ar, arvif->vdev_id,
 					 arvif->bssid);
 		if (ret) {
-			ath10k_warn("Failed to delete IBSS BSSID peer:%pM for VDEV:%d ret:%d\n",
+			ath10k_warn("failed to delete IBSS BSSID peer %pM for vdev %d: %d\n",
 				    arvif->bssid, arvif->vdev_id, ret);
 			return;
 		}
@@ -945,7 +946,7 @@ static void ath10k_control_ibss(struct ath10k_vif *arvif,
 
 	ret = ath10k_peer_create(arvif->ar, arvif->vdev_id, self_peer);
 	if (ret) {
-		ath10k_warn("Failed to create IBSS self peer:%pM for VDEV:%d ret:%d\n",
+		ath10k_warn("failed to create IBSS self peer %pM for vdev %d: %d\n",
 			    self_peer, arvif->vdev_id, ret);
 		return;
 	}
@@ -954,7 +955,7 @@ static void ath10k_control_ibss(struct ath10k_vif *arvif,
 	ret = ath10k_wmi_vdev_set_param(arvif->ar, arvif->vdev_id, vdev_param,
 					ATH10K_DEFAULT_ATIM);
 	if (ret)
-		ath10k_warn("Failed to set IBSS ATIM for VDEV:%d ret:%d\n",
+		ath10k_warn("failed to set IBSS ATIM for vdev %d: %d\n",
 			    arvif->vdev_id, ret);
 }
 
@@ -981,7 +982,7 @@ static int ath10k_mac_vif_setup_ps(struct ath10k_vif *arvif)
 		ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id, param,
 						  conf->dynamic_ps_timeout);
 		if (ret) {
-			ath10k_warn("Failed to set inactivity time for vdev %d: %i\n",
+			ath10k_warn("failed to set inactivity time for vdev %d: %i\n",
 				    arvif->vdev_id, ret);
 			return ret;
 		}
@@ -994,8 +995,8 @@ static int ath10k_mac_vif_setup_ps(struct ath10k_vif *arvif)
 
 	ret = ath10k_wmi_set_psmode(ar, arvif->vdev_id, psmode);
 	if (ret) {
-		ath10k_warn("Failed to set PS Mode: %d for VDEV: %d\n",
-			    psmode, arvif->vdev_id);
+		ath10k_warn("failed to set PS Mode %d for vdev %d: %d\n",
+			    psmode, arvif->vdev_id, ret);
 		return ret;
 	}
 
@@ -1449,7 +1450,7 @@ static void ath10k_bss_assoc(struct ieee80211_hw *hw,
 
 	ap_sta = ieee80211_find_sta(vif, bss_conf->bssid);
 	if (!ap_sta) {
-		ath10k_warn("Failed to find station entry for %pM, vdev %i\n",
+		ath10k_warn("failed to find station entry for bss %pM vdev %i\n",
 			    bss_conf->bssid, arvif->vdev_id);
 		rcu_read_unlock();
 		return;
@@ -1462,7 +1463,7 @@ static void ath10k_bss_assoc(struct ieee80211_hw *hw,
 	ret = ath10k_peer_assoc_prepare(ar, arvif, ap_sta,
 					bss_conf, &peer_arg);
 	if (ret) {
-		ath10k_warn("Peer assoc prepare failed for %pM vdev %i\n: %d",
+		ath10k_warn("failed to prepare peer assoc for %pM vdev %i: %d\n",
 			    bss_conf->bssid, arvif->vdev_id, ret);
 		rcu_read_unlock();
 		return;
@@ -1472,7 +1473,7 @@ static void ath10k_bss_assoc(struct ieee80211_hw *hw,
 
 	ret = ath10k_wmi_peer_assoc(ar, &peer_arg);
 	if (ret) {
-		ath10k_warn("Peer assoc failed for %pM vdev %i\n: %d",
+		ath10k_warn("failed to run peer assoc for %pM vdev %i: %d\n",
 			    bss_conf->bssid, arvif->vdev_id, ret);
 		return;
 	}
@@ -1493,7 +1494,7 @@ static void ath10k_bss_assoc(struct ieee80211_hw *hw,
 
 	ret = ath10k_wmi_vdev_up(ar, arvif->vdev_id, arvif->aid, arvif->bssid);
 	if (ret) {
-		ath10k_warn("VDEV: %d up failed: ret %d\n",
+		ath10k_warn("failed to set vdev %d up: %d\n",
 			    arvif->vdev_id, ret);
 		return;
 	}
@@ -1553,7 +1554,7 @@ static int ath10k_station_assoc(struct ath10k *ar, struct ath10k_vif *arvif,
 
 	ret = ath10k_peer_assoc_prepare(ar, arvif, sta, NULL, &peer_arg);
 	if (ret) {
-		ath10k_warn("WMI peer assoc prepare failed for %pM vdev %i: %i\n",
+		ath10k_warn("failed to prepare WMI peer assoc for %pM vdev %i: %i\n",
 			    sta->addr, arvif->vdev_id, ret);
 		return ret;
 	}
@@ -1561,14 +1562,15 @@ static int ath10k_station_assoc(struct ath10k *ar, struct ath10k_vif *arvif,
 	peer_arg.peer_reassoc = reassoc;
 	ret = ath10k_wmi_peer_assoc(ar, &peer_arg);
 	if (ret) {
-		ath10k_warn("Peer assoc failed for STA %pM vdev %i: %d\n",
+		ath10k_warn("failed to run peer assoc for STA %pM vdev %i: %d\n",
 			    sta->addr, arvif->vdev_id, ret);
 		return ret;
 	}
 
 	ret = ath10k_setup_peer_smps(ar, arvif, sta->addr, &sta->ht_cap);
 	if (ret) {
-		ath10k_warn("failed to setup peer SMPS for vdev: %d\n", ret);
+		ath10k_warn("failed to setup peer SMPS for vdev %d: %d\n",
+			    arvif->vdev_id, ret);
 		return ret;
 	}
 
@@ -1584,14 +1586,14 @@ static int ath10k_station_assoc(struct ath10k *ar, struct ath10k_vif *arvif,
 
 	ret = ath10k_install_peer_wep_keys(arvif, sta->addr);
 	if (ret) {
-		ath10k_warn("could not install peer wep keys for vdev %i: %d\n",
+		ath10k_warn("failed to install peer wep keys for vdev %i: %d\n",
 			    arvif->vdev_id, ret);
 		return ret;
 	}
 
 	ret = ath10k_peer_assoc_qos_ap(ar, arvif, sta);
 	if (ret) {
-		ath10k_warn("could not set qos params for STA %pM for vdev %i: %d\n",
+		ath10k_warn("failed to set qos params for STA %pM for vdev %i: %d\n",
 			    sta->addr, arvif->vdev_id, ret);
 		return ret;
 	}
@@ -1618,7 +1620,7 @@ static int ath10k_station_disassoc(struct ath10k *ar, struct ath10k_vif *arvif,
 
 	ret = ath10k_clear_peer_keys(arvif, sta->addr);
 	if (ret) {
-		ath10k_warn("could not clear all peer wep keys for vdev %i: %d\n",
+		ath10k_warn("failed to clear all peer wep keys for vdev %i: %d\n",
 			    arvif->vdev_id, ret);
 		return ret;
 	}
@@ -1753,7 +1755,7 @@ static void ath10k_regd_update(struct ath10k *ar)
 
 	ret = ath10k_update_channel_list(ar);
 	if (ret)
-		ath10k_warn("could not update channel list (%d)\n", ret);
+		ath10k_warn("failed to update channel list: %d\n", ret);
 
 	regpair = ar->ath_common.regulatory.regpair;
 
@@ -1774,7 +1776,7 @@ static void ath10k_regd_update(struct ath10k *ar)
 					    regpair->reg_5ghz_ctl,
 					    wmi_dfs_reg);
 	if (ret)
-		ath10k_warn("could not set pdev regdomain (%d)\n", ret);
+		ath10k_warn("failed to set pdev regdomain: %d\n", ret);
 }
 
 static void ath10k_reg_notifier(struct wiphy *wiphy,
@@ -1792,7 +1794,7 @@ static void ath10k_reg_notifier(struct wiphy *wiphy,
 		result = ar->dfs_detector->set_dfs_domain(ar->dfs_detector,
 							  request->dfs_region);
 		if (!result)
-			ath10k_warn("dfs region 0x%X not supported, will trigger radar for every pulse\n",
+			ath10k_warn("DFS region 0x%X not supported, will trigger radar for every pulse\n",
 				    request->dfs_region);
 	}
 
@@ -1829,7 +1831,7 @@ static u8 ath10k_tx_h_get_vdev_id(struct ath10k *ar,
 	if (ar->monitor_enabled)
 		return ar->monitor_vdev_id;
 
-	ath10k_warn("could not resolve vdev id\n");
+	ath10k_warn("failed to resolve vdev id\n");
 	return 0;
 }
 
@@ -1870,7 +1872,9 @@ static void ath10k_tx_wep_key_work(struct work_struct *work)
 					arvif->ar->wmi.vdev_param->def_keyid,
 					keyidx);
 	if (ret) {
-		ath10k_warn("could not update wep keyidx (%d)\n", ret);
+		ath10k_warn("failed to update wep key index for vdev %d: %d\n",
+			    arvif->vdev_id,
+			    ret);
 		return;
 	}
 
@@ -1946,7 +1950,7 @@ static void ath10k_tx_htt(struct ath10k *ar, struct sk_buff *skb)
 			     ar->fw_features)) {
 			if (skb_queue_len(&ar->wmi_mgmt_tx_queue) >=
 			    ATH10K_MAX_NUM_MGMT_PENDING) {
-				ath10k_warn("wmi mgmt_tx queue limit reached\n");
+				ath10k_warn("reached WMI management tranmist queue limit\n");
 				ret = -EBUSY;
 				goto exit;
 			}
@@ -1970,7 +1974,7 @@ static void ath10k_tx_htt(struct ath10k *ar, struct sk_buff *skb)
 
 exit:
 	if (ret) {
-		ath10k_warn("tx failed (%d). dropping packet.\n", ret);
+		ath10k_warn("failed to transmit packet, dropping: %d\n", ret);
 		ieee80211_free_txskb(ar->hw, skb);
 	}
 }
@@ -2031,7 +2035,7 @@ void ath10k_offchan_tx_work(struct work_struct *work)
 		if (!peer) {
 			ret = ath10k_peer_create(ar, vdev_id, peer_addr);
 			if (ret)
-				ath10k_warn("peer %pM on vdev %d not created (%d)\n",
+				ath10k_warn("failed to create peer %pM on vdev %d: %d\n",
 					    peer_addr, vdev_id, ret);
 		}
 
@@ -2051,7 +2055,7 @@ void ath10k_offchan_tx_work(struct work_struct *work)
 		if (!peer) {
 			ret = ath10k_peer_delete(ar, vdev_id, peer_addr);
 			if (ret)
-				ath10k_warn("peer %pM on vdev %d not deleted (%d)\n",
+				ath10k_warn("failed to delete peer %pM on vdev %d: %d\n",
 					    peer_addr, vdev_id, ret);
 		}
 
@@ -2085,7 +2089,8 @@ void ath10k_mgmt_over_wmi_tx_work(struct work_struct *work)
 
 		ret = ath10k_wmi_mgmt_tx(ar, skb);
 		if (ret) {
-			ath10k_warn("wmi mgmt_tx failed (%d)\n", ret);
+			ath10k_warn("failed to transmit management frame via WMI: %d\n",
+				    ret);
 			ieee80211_free_txskb(ar->hw, skb);
 		}
 	}
@@ -2110,7 +2115,7 @@ void ath10k_reset_scan(unsigned long ptr)
 		return;
 	}
 
-	ath10k_warn("scan timeout. resetting. fw issue?\n");
+	ath10k_warn("scan timed out, firmware problem?\n");
 
 	if (ar->scan.is_roc)
 		ieee80211_remain_on_channel_expired(ar->hw);
@@ -2146,7 +2151,7 @@ static int ath10k_abort_scan(struct ath10k *ar)
 
 	ret = ath10k_wmi_stop_scan(ar, &arg);
 	if (ret) {
-		ath10k_warn("could not submit wmi stop scan (%d)\n", ret);
+		ath10k_warn("failed to stop wmi scan: %d\n", ret);
 		spin_lock_bh(&ar->data_lock);
 		ar->scan.in_progress = false;
 		ath10k_offchan_tx_purge(ar);
@@ -2166,7 +2171,7 @@ static int ath10k_abort_scan(struct ath10k *ar)
 
 	spin_lock_bh(&ar->data_lock);
 	if (ar->scan.in_progress) {
-		ath10k_warn("could not stop scan. its still in progress\n");
+		ath10k_warn("failed to stop scan, it's still in progress\n");
 		ar->scan.in_progress = false;
 		ath10k_offchan_tx_purge(ar);
 		ret = -ETIMEDOUT;
@@ -2293,14 +2298,14 @@ static int ath10k_start(struct ieee80211_hw *hw)
 
 	ret = ath10k_hif_power_up(ar);
 	if (ret) {
-		ath10k_err("could not init hif (%d)\n", ret);
+		ath10k_err("Could not init hif: %d\n", ret);
 		ar->state = ATH10K_STATE_OFF;
 		goto exit;
 	}
 
 	ret = ath10k_core_start(ar);
 	if (ret) {
-		ath10k_err("could not init core (%d)\n", ret);
+		ath10k_err("Could not init core: %d\n", ret);
 		ath10k_hif_power_down(ar);
 		ar->state = ATH10K_STATE_OFF;
 		goto exit;
@@ -2313,13 +2318,11 @@ static int ath10k_start(struct ieee80211_hw *hw)
 
 	ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->pmf_qos, 1);
 	if (ret)
-		ath10k_warn("could not enable WMI_PDEV_PARAM_PMF_QOS (%d)\n",
-			    ret);
+		ath10k_warn("failed to enable PMF QOS: %d\n", ret);
 
 	ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->dynamic_bw, 1);
 	if (ret)
-		ath10k_warn("could not init WMI_PDEV_PARAM_DYNAMIC_BW (%d)\n",
-			    ret);
+		ath10k_warn("failed to enable dynamic BW: %d\n", ret);
 
 	/*
 	 * By default FW set ARP frames ac to voice (6). In that case ARP
@@ -2333,7 +2336,7 @@ static int ath10k_start(struct ieee80211_hw *hw)
 	ret = ath10k_wmi_pdev_set_param(ar,
 					ar->wmi.pdev_param->arp_ac_override, 0);
 	if (ret) {
-		ath10k_warn("could not set arp ac override parameter: %d\n",
+		ath10k_warn("failed to set arp ac override parameter: %d\n",
 			    ret);
 		goto exit;
 	}
@@ -2376,7 +2379,7 @@ static int ath10k_config_ps(struct ath10k *ar)
 	list_for_each_entry(arvif, &ar->arvifs, list) {
 		ret = ath10k_mac_vif_setup_ps(arvif);
 		if (ret) {
-			ath10k_warn("could not setup powersave (%d)\n", ret);
+			ath10k_warn("failed to setup powersave: %d\n", ret);
 			break;
 		}
 	}
@@ -2438,7 +2441,7 @@ static void ath10k_config_chan(struct ath10k *ar)
 
 		ret = ath10k_vdev_stop(arvif);
 		if (ret) {
-			ath10k_warn("could not stop vdev %d (%d)\n",
+			ath10k_warn("failed to stop vdev %d: %d\n",
 				    arvif->vdev_id, ret);
 			continue;
 		}
@@ -2455,7 +2458,7 @@ static void ath10k_config_chan(struct ath10k *ar)
 
 		ret = ath10k_vdev_start(arvif);
 		if (ret) {
-			ath10k_warn("could not start vdev %d (%d)\n",
+			ath10k_warn("failed to start vdev %d: %d\n",
 				    arvif->vdev_id, ret);
 			continue;
 		}
@@ -2466,7 +2469,7 @@ static void ath10k_config_chan(struct ath10k *ar)
 		ret = ath10k_wmi_vdev_up(arvif->ar, arvif->vdev_id, arvif->aid,
 					 arvif->bssid);
 		if (ret) {
-			ath10k_warn("could not bring vdev up %d (%d)\n",
+			ath10k_warn("failed to bring vdev up %d: %d\n",
 				    arvif->vdev_id, ret);
 			continue;
 		}
@@ -2511,14 +2514,14 @@ static int ath10k_config(struct ieee80211_hw *hw, u32 changed)
 		ret = ath10k_wmi_pdev_set_param(ar, param,
 						hw->conf.power_level * 2);
 		if (ret)
-			ath10k_warn("mac failed to set 2g txpower %d (%d)\n",
+			ath10k_warn("failed to set 2g txpower %d: %d\n",
 				    hw->conf.power_level, ret);
 
 		param = ar->wmi.pdev_param->txpower_limit5g;
 		ret = ath10k_wmi_pdev_set_param(ar, param,
 						hw->conf.power_level * 2);
 		if (ret)
-			ath10k_warn("mac failed to set 5g txpower %d (%d)\n",
+			ath10k_warn("failed to set 5g txpower %d: %d\n",
 				    hw->conf.power_level, ret);
 	}
 
@@ -2565,7 +2568,7 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
 	INIT_LIST_HEAD(&arvif->list);
 
 	if ((vif->type == NL80211_IFTYPE_MONITOR) && ar->monitor_present) {
-		ath10k_warn("Only one monitor interface allowed\n");
+		ath10k_warn("only one monitor interface allowed\n");
 		ret = -EBUSY;
 		goto err;
 	}
@@ -2612,7 +2615,7 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
 	ret = ath10k_wmi_vdev_create(ar, arvif->vdev_id, arvif->vdev_type,
 				     arvif->vdev_subtype, vif->addr);
 	if (ret) {
-		ath10k_warn("WMI vdev %i create failed: ret %d\n",
+		ath10k_warn("failed to create WMI vdev %i: %d\n",
 			    arvif->vdev_id, ret);
 		goto err;
 	}
@@ -2624,7 +2627,7 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
 	ret = ath10k_wmi_vdev_set_param(ar, 0, vdev_param,
 					arvif->def_wep_key_idx);
 	if (ret) {
-		ath10k_warn("Failed to set vdev %i default keyid: %d\n",
+		ath10k_warn("failed to set vdev %i default key id: %d\n",
 			    arvif->vdev_id, ret);
 		goto err_vdev_delete;
 	}
@@ -2634,7 +2637,7 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
 					ATH10K_HW_TXRX_NATIVE_WIFI);
 	/* 10.X firmware does not support this VDEV parameter. Do not warn */
 	if (ret && ret != -EOPNOTSUPP) {
-		ath10k_warn("Failed to set vdev %i TX encap: %d\n",
+		ath10k_warn("failed to set vdev %i TX encapsulation: %d\n",
 			    arvif->vdev_id, ret);
 		goto err_vdev_delete;
 	}
@@ -2642,14 +2645,14 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
 	if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
 		ret = ath10k_peer_create(ar, arvif->vdev_id, vif->addr);
 		if (ret) {
-			ath10k_warn("Failed to create vdev %i peer for AP: %d\n",
+			ath10k_warn("failed to create vdev %i peer for AP: %d\n",
 				    arvif->vdev_id, ret);
 			goto err_vdev_delete;
 		}
 
 		ret = ath10k_mac_set_kickout(arvif);
 		if (ret) {
-			ath10k_warn("Failed to set vdev %i kickout parameters: %d\n",
+			ath10k_warn("failed to set vdev %i kickout parameters: %d\n",
 				    arvif->vdev_id, ret);
 			goto err_peer_delete;
 		}
@@ -2661,7 +2664,7 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
 		ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
 						  param, value);
 		if (ret) {
-			ath10k_warn("Failed to set vdev %i RX wake policy: %d\n",
+			ath10k_warn("failed to set vdev %i RX wake policy: %d\n",
 				    arvif->vdev_id, ret);
 			goto err_peer_delete;
 		}
@@ -2671,7 +2674,7 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
 		ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
 						  param, value);
 		if (ret) {
-			ath10k_warn("Failed to set vdev %i TX wake thresh: %d\n",
+			ath10k_warn("failed to set vdev %i TX wake thresh: %d\n",
 				    arvif->vdev_id, ret);
 			goto err_peer_delete;
 		}
@@ -2681,7 +2684,7 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
 		ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
 						  param, value);
 		if (ret) {
-			ath10k_warn("Failed to set vdev %i PSPOLL count: %d\n",
+			ath10k_warn("failed to set vdev %i PSPOLL count: %d\n",
 				    arvif->vdev_id, ret);
 			goto err_peer_delete;
 		}
@@ -2689,14 +2692,14 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
 
 	ret = ath10k_mac_set_rts(arvif, ar->hw->wiphy->rts_threshold);
 	if (ret) {
-		ath10k_warn("failed to set rts threshold for vdev %d (%d)\n",
+		ath10k_warn("failed to set rts threshold for vdev %d: %d\n",
 			    arvif->vdev_id, ret);
 		goto err_peer_delete;
 	}
 
 	ret = ath10k_mac_set_frag(arvif, ar->hw->wiphy->frag_threshold);
 	if (ret) {
-		ath10k_warn("failed to set frag threshold for vdev %d (%d)\n",
+		ath10k_warn("failed to set frag threshold for vdev %d: %d\n",
 			    arvif->vdev_id, ret);
 		goto err_peer_delete;
 	}
@@ -2746,7 +2749,7 @@ static void ath10k_remove_interface(struct ieee80211_hw *hw,
 	if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
 		ret = ath10k_peer_delete(arvif->ar, arvif->vdev_id, vif->addr);
 		if (ret)
-			ath10k_warn("Failed to remove peer for AP vdev %i: %d\n",
+			ath10k_warn("failed to remove peer for AP vdev %i: %d\n",
 				    arvif->vdev_id, ret);
 
 		kfree(arvif->u.ap.noa_data);
@@ -2757,7 +2760,7 @@ static void ath10k_remove_interface(struct ieee80211_hw *hw,
 
 	ret = ath10k_wmi_vdev_delete(ar, arvif->vdev_id);
 	if (ret)
-		ath10k_warn("WMI vdev %i delete failed: %d\n",
+		ath10k_warn("failed to delete WMI vdev %i: %d\n",
 			    arvif->vdev_id, ret);
 
 	if (arvif->vdev_type == WMI_VDEV_TYPE_MONITOR)
@@ -2808,7 +2811,7 @@ static void ath10k_configure_filter(struct ieee80211_hw *hw,
 
 		ret = ath10k_monitor_start(ar, ar->monitor_vdev_id);
 		if (ret)
-			ath10k_warn("Unable to start monitor mode\n");
+			ath10k_warn("failed to start monitor mode: %d\n", ret);
 	} else if (!(ar->filter_flags & FIF_PROMISC_IN_BSS) &&
 		   ar->monitor_enabled && ar->monitor_present) {
 		ath10k_dbg(ATH10K_DBG_MAC, "mac monitor %d stop\n",
@@ -2816,7 +2819,7 @@ static void ath10k_configure_filter(struct ieee80211_hw *hw,
 
 		ret = ath10k_monitor_stop(ar);
 		if (ret)
-			ath10k_warn("Unable to stop monitor mode\n");
+			ath10k_warn("failed to stop monitor mode: %d\n", ret);
 	}
 
 	mutex_unlock(&ar->conf_mutex);
@@ -2847,7 +2850,7 @@ static void ath10k_bss_info_changed(struct ieee80211_hw *hw,
 			   arvif->vdev_id, arvif->beacon_interval);
 
 		if (ret)
-			ath10k_warn("Failed to set beacon interval for vdev %d: %i\n",
+			ath10k_warn("failed to set beacon interval for vdev %d: %i\n",
 				    arvif->vdev_id, ret);
 	}
 
@@ -2860,7 +2863,7 @@ static void ath10k_bss_info_changed(struct ieee80211_hw *hw,
 		ret = ath10k_wmi_pdev_set_param(ar, pdev_param,
 						WMI_BEACON_STAGGERED_MODE);
 		if (ret)
-			ath10k_warn("Failed to set beacon mode for vdev %d: %i\n",
+			ath10k_warn("failed to set beacon mode for vdev %d: %i\n",
 				    arvif->vdev_id, ret);
 	}
 
@@ -2875,7 +2878,7 @@ static void ath10k_bss_info_changed(struct ieee80211_hw *hw,
 		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
 						arvif->dtim_period);
 		if (ret)
-			ath10k_warn("Failed to set dtim period for vdev %d: %i\n",
+			ath10k_warn("failed to set dtim period for vdev %d: %i\n",
 				    arvif->vdev_id, ret);
 	}
 
@@ -2896,7 +2899,7 @@ static void ath10k_bss_info_changed(struct ieee80211_hw *hw,
 			ret = ath10k_peer_create(ar, arvif->vdev_id,
 						 info->bssid);
 			if (ret)
-				ath10k_warn("Failed to add peer %pM for vdev %d when changing bssid: %i\n",
+				ath10k_warn("failed to add peer %pM for vdev %d when changing bssid: %i\n",
 					    info->bssid, arvif->vdev_id, ret);
 
 			if (vif->type == NL80211_IFTYPE_STATION) {
@@ -2941,7 +2944,7 @@ static void ath10k_bss_info_changed(struct ieee80211_hw *hw,
 
 		ret = ath10k_recalc_rtscts_prot(arvif);
 		if (ret)
-			ath10k_warn("Failed to recalculate rts/cts prot for vdev %d: %d\n",
+			ath10k_warn("failed to recalculate rts/cts prot for vdev %d: %d\n",
 				    arvif->vdev_id, ret);
 	}
 
@@ -2960,7 +2963,7 @@ static void ath10k_bss_info_changed(struct ieee80211_hw *hw,
 		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
 						slottime);
 		if (ret)
-			ath10k_warn("Failed to set erp slot for vdev %d: %i\n",
+			ath10k_warn("failed to set erp slot for vdev %d: %i\n",
 				    arvif->vdev_id, ret);
 	}
 
@@ -2979,7 +2982,7 @@ static void ath10k_bss_info_changed(struct ieee80211_hw *hw,
 		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
 						preamble);
 		if (ret)
-			ath10k_warn("Failed to set preamble for vdev %d: %i\n",
+			ath10k_warn("failed to set preamble for vdev %d: %i\n",
 				    arvif->vdev_id, ret);
 	}
 
@@ -3050,7 +3053,7 @@ static int ath10k_hw_scan(struct ieee80211_hw *hw,
 
 	ret = ath10k_start_scan(ar, &arg);
 	if (ret) {
-		ath10k_warn("could not start hw scan (%d)\n", ret);
+		ath10k_warn("failed to start hw scan: %d\n", ret);
 		spin_lock_bh(&ar->data_lock);
 		ar->scan.in_progress = false;
 		spin_unlock_bh(&ar->data_lock);
@@ -3070,8 +3073,7 @@ static void ath10k_cancel_hw_scan(struct ieee80211_hw *hw,
 	mutex_lock(&ar->conf_mutex);
 	ret = ath10k_abort_scan(ar);
 	if (ret) {
-		ath10k_warn("couldn't abort scan (%d). forcefully sending scan completion to mac80211\n",
-			    ret);
+		ath10k_warn("failed to abort scan: %d\n", ret);
 		ieee80211_scan_completed(hw, 1 /* aborted */);
 	}
 	mutex_unlock(&ar->conf_mutex);
@@ -3149,7 +3151,7 @@ static int ath10k_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 
 	if (!peer) {
 		if (cmd == SET_KEY) {
-			ath10k_warn("cannot install key for non-existent peer %pM\n",
+			ath10k_warn("failed to install key for non-existent peer %pM\n",
 				    peer_addr);
 			ret = -EOPNOTSUPP;
 			goto exit;
@@ -3172,7 +3174,7 @@ static int ath10k_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 
 	ret = ath10k_install_key(arvif, key, cmd, peer_addr);
 	if (ret) {
-		ath10k_warn("key installation failed for vdev %i peer %pM: %d\n",
+		ath10k_warn("failed to install key for vdev %i peer %pM: %d\n",
 			    arvif->vdev_id, peer_addr, ret);
 		goto exit;
 	}
@@ -3187,7 +3189,7 @@ static int ath10k_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 		peer->keys[key->keyidx] = NULL;
 	else if (peer == NULL)
 		/* impossible unless FW goes crazy */
-		ath10k_warn("peer %pM disappeared!\n", peer_addr);
+		ath10k_warn("Peer %pM disappeared!\n", peer_addr);
 	spin_unlock_bh(&ar->data_lock);
 
 exit:
@@ -3261,7 +3263,7 @@ static void ath10k_sta_rc_update_wk(struct work_struct *wk)
 
 		err = ath10k_station_assoc(ar, arvif, sta, true);
 		if (err)
-			ath10k_warn("Failed to reassociate station: %pM\n",
+			ath10k_warn("failed to reassociate station: %pM\n",
 				    sta->addr);
 	}
 
@@ -3306,7 +3308,7 @@ static int ath10k_sta_state(struct ieee80211_hw *hw,
 			max_num_peers = TARGET_NUM_PEERS;
 
 		if (ar->num_peers >= max_num_peers) {
-			ath10k_warn("Number of peers exceeded: peers number %d (max peers %d)\n",
+			ath10k_warn("number of peers exceeded: peers number %d (max peers %d)\n",
 				    ar->num_peers, max_num_peers);
 			ret = -ENOBUFS;
 			goto exit;
@@ -3318,7 +3320,7 @@ static int ath10k_sta_state(struct ieee80211_hw *hw,
 
 		ret = ath10k_peer_create(ar, arvif->vdev_id, sta->addr);
 		if (ret)
-			ath10k_warn("Failed to add peer %pM for vdev %d when adding a new sta: %i\n",
+			ath10k_warn("failed to add peer %pM for vdev %d when adding a new sta: %i\n",
 				    sta->addr, arvif->vdev_id, ret);
 	} else if ((old_state == IEEE80211_STA_NONE &&
 		    new_state == IEEE80211_STA_NOTEXIST)) {
@@ -3330,7 +3332,7 @@ static int ath10k_sta_state(struct ieee80211_hw *hw,
 			   arvif->vdev_id, sta->addr);
 		ret = ath10k_peer_delete(ar, arvif->vdev_id, sta->addr);
 		if (ret)
-			ath10k_warn("Failed to delete peer %pM for vdev %d: %i\n",
+			ath10k_warn("failed to delete peer %pM for vdev %d: %i\n",
 				    sta->addr, arvif->vdev_id, ret);
 
 		if (vif->type == NL80211_IFTYPE_STATION)
@@ -3347,7 +3349,7 @@ static int ath10k_sta_state(struct ieee80211_hw *hw,
 
 		ret = ath10k_station_assoc(ar, arvif, sta, false);
 		if (ret)
-			ath10k_warn("Failed to associate station %pM for vdev %i: %i\n",
+			ath10k_warn("failed to associate station %pM for vdev %i: %i\n",
 				    sta->addr, arvif->vdev_id, ret);
 	} else if (old_state == IEEE80211_STA_ASSOC &&
 		   new_state == IEEE80211_STA_AUTH &&
@@ -3361,7 +3363,7 @@ static int ath10k_sta_state(struct ieee80211_hw *hw,
 
 		ret = ath10k_station_disassoc(ar, arvif, sta);
 		if (ret)
-			ath10k_warn("Failed to disassociate station: %pM vdev %i ret %i\n",
+			ath10k_warn("failed to disassociate station: %pM vdev %i: %i\n",
 				    sta->addr, arvif->vdev_id, ret);
 	}
 exit:
@@ -3409,7 +3411,7 @@ static int ath10k_conf_tx_uapsd(struct ath10k *ar, struct ieee80211_vif *vif,
 					  WMI_STA_PS_PARAM_UAPSD,
 					  arvif->u.sta.uapsd);
 	if (ret) {
-		ath10k_warn("could not set uapsd params %d\n", ret);
+		ath10k_warn("failed to set uapsd params: %d\n", ret);
 		goto exit;
 	}
 
@@ -3422,7 +3424,7 @@ static int ath10k_conf_tx_uapsd(struct ath10k *ar, struct ieee80211_vif *vif,
 					  WMI_STA_PS_PARAM_RX_WAKE_POLICY,
 					  value);
 	if (ret)
-		ath10k_warn("could not set rx wake param %d\n", ret);
+		ath10k_warn("failed to set rx wake param: %d\n", ret);
 
 exit:
 	return ret;
@@ -3472,13 +3474,13 @@ static int ath10k_conf_tx(struct ieee80211_hw *hw,
 	/* FIXME: FW accepts wmm params per hw, not per vif */
 	ret = ath10k_wmi_pdev_set_wmm_params(ar, &ar->wmm_params);
 	if (ret) {
-		ath10k_warn("could not set wmm params %d\n", ret);
+		ath10k_warn("failed to set wmm params: %d\n", ret);
 		goto exit;
 	}
 
 	ret = ath10k_conf_tx_uapsd(ar, vif, ac, params->uapsd);
 	if (ret)
-		ath10k_warn("could not set sta uapsd %d\n", ret);
+		ath10k_warn("failed to set sta uapsd: %d\n", ret);
 
 exit:
 	mutex_unlock(&ar->conf_mutex);
@@ -3531,7 +3533,7 @@ static int ath10k_remain_on_channel(struct ieee80211_hw *hw,
 
 	ret = ath10k_start_scan(ar, &arg);
 	if (ret) {
-		ath10k_warn("could not start roc scan (%d)\n", ret);
+		ath10k_warn("failed to start roc scan: %d\n", ret);
 		spin_lock_bh(&ar->data_lock);
 		ar->scan.in_progress = false;
 		spin_unlock_bh(&ar->data_lock);
@@ -3540,7 +3542,7 @@ static int ath10k_remain_on_channel(struct ieee80211_hw *hw,
 
 	ret = wait_for_completion_timeout(&ar->scan.on_channel, 3*HZ);
 	if (ret == 0) {
-		ath10k_warn("could not switch to channel for roc scan\n");
+		ath10k_warn("failed to switch to channel for roc scan\n");
 		ath10k_abort_scan(ar);
 		ret = -ETIMEDOUT;
 		goto exit;
@@ -3581,7 +3583,7 @@ static int ath10k_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
 
 		ret = ath10k_mac_set_rts(arvif, value);
 		if (ret) {
-			ath10k_warn("could not set rts threshold for vdev %d (%d)\n",
+			ath10k_warn("failed to set rts threshold for vdev %d: %d\n",
 				    arvif->vdev_id, ret);
 			break;
 		}
@@ -3604,7 +3606,7 @@ static int ath10k_set_frag_threshold(struct ieee80211_hw *hw, u32 value)
 
 		ret = ath10k_mac_set_rts(arvif, value);
 		if (ret) {
-			ath10k_warn("could not set fragmentation threshold for vdev %d (%d)\n",
+			ath10k_warn("failed to set fragmentation threshold for vdev %d: %d\n",
 				    arvif->vdev_id, ret);
 			break;
 		}
@@ -3643,7 +3645,7 @@ static void ath10k_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
 		}), ATH10K_FLUSH_TIMEOUT_HZ);
 
 	if (ret <= 0 || skip)
-		ath10k_warn("tx not flushed (skip %i ar-state %i): %i\n",
+		ath10k_warn("failed to flush transmit queue (skip %i ar-state %i): %i\n",
 			    skip, ar->state, ret);
 
 skip:
@@ -3678,7 +3680,7 @@ static int ath10k_suspend(struct ieee80211_hw *hw,
 
 	ret = ath10k_hif_suspend(ar);
 	if (ret) {
-		ath10k_warn("could not suspend hif (%d)\n", ret);
+		ath10k_warn("failed to suspend hif: %d\n", ret);
 		goto resume;
 	}
 
@@ -3687,7 +3689,7 @@ static int ath10k_suspend(struct ieee80211_hw *hw,
 resume:
 	ret = ath10k_wmi_pdev_resume_target(ar);
 	if (ret)
-		ath10k_warn("could not resume target (%d)\n", ret);
+		ath10k_warn("failed to resume target: %d\n", ret);
 
 	ret = 1;
 exit:
@@ -3704,14 +3706,14 @@ static int ath10k_resume(struct ieee80211_hw *hw)
 
 	ret = ath10k_hif_resume(ar);
 	if (ret) {
-		ath10k_warn("could not resume hif (%d)\n", ret);
+		ath10k_warn("failed to resume hif: %d\n", ret);
 		ret = 1;
 		goto exit;
 	}
 
 	ret = ath10k_wmi_pdev_resume_target(ar);
 	if (ret) {
-		ath10k_warn("could not resume target (%d)\n", ret);
+		ath10k_warn("failed to resume target: %d\n", ret);
 		ret = 1;
 		goto exit;
 	}
@@ -4034,7 +4036,7 @@ static int ath10k_set_fixed_rate_param(struct ath10k_vif *arvif,
 	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
 					vdev_param, fixed_rate);
 	if (ret) {
-		ath10k_warn("Could not set fixed_rate param 0x%02x: %d\n",
+		ath10k_warn("failed to set fixed rate param 0x%02x: %d\n",
 			    fixed_rate, ret);
 		ret = -EINVAL;
 		goto exit;
@@ -4047,7 +4049,7 @@ static int ath10k_set_fixed_rate_param(struct ath10k_vif *arvif,
 					vdev_param, fixed_nss);
 
 	if (ret) {
-		ath10k_warn("Could not set fixed_nss param %d: %d\n",
+		ath10k_warn("failed to set fixed nss param %d: %d\n",
 			    fixed_nss, ret);
 		ret = -EINVAL;
 		goto exit;
@@ -4060,7 +4062,7 @@ static int ath10k_set_fixed_rate_param(struct ath10k_vif *arvif,
 					force_sgi);
 
 	if (ret) {
-		ath10k_warn("Could not set sgi param %d: %d\n",
+		ath10k_warn("failed to set sgi param %d: %d\n",
 			    force_sgi, ret);
 		ret = -EINVAL;
 		goto exit;
@@ -4096,7 +4098,7 @@ static int ath10k_set_bitrate_mask(struct ieee80211_hw *hw,
 	}
 
 	if (fixed_rate == WMI_FIXED_RATE_NONE && force_sgi) {
-		ath10k_warn("Could not force SGI usage for default rate settings\n");
+		ath10k_warn("failed to force SGI usage for default rate settings\n");
 		return -EINVAL;
 	}
 
@@ -4142,8 +4144,8 @@ static void ath10k_sta_rc_update(struct ieee80211_hw *hw,
 			bw = WMI_PEER_CHWIDTH_80MHZ;
 			break;
 		case IEEE80211_STA_RX_BW_160:
-			ath10k_warn("mac sta rc update for %pM: invalid bw %d\n",
-				    sta->addr, sta->bandwidth);
+			ath10k_warn("Invalid bandwith %d in rc update for %pM\n",
+				    sta->bandwidth, sta->addr);
 			bw = WMI_PEER_CHWIDTH_20MHZ;
 			break;
 		}
@@ -4169,8 +4171,8 @@ static void ath10k_sta_rc_update(struct ieee80211_hw *hw,
 			smps = WMI_PEER_SMPS_DYNAMIC;
 			break;
 		case IEEE80211_SMPS_NUM_MODES:
-			ath10k_warn("mac sta rc update for %pM: invalid smps: %d\n",
-				    sta->addr, sta->smps_mode);
+			ath10k_warn("Invalid smps %d in sta rc update for %pM\n",
+				    sta->smps_mode, sta->addr);
 			smps = WMI_PEER_SMPS_PS_NONE;
 			break;
 		}
@@ -4631,19 +4633,19 @@ int ath10k_mac_register(struct ath10k *ar)
 							     NL80211_DFS_UNSET);
 
 		if (!ar->dfs_detector)
-			ath10k_warn("dfs pattern detector init failed\n");
+			ath10k_warn("failed to initialise DFS pattern detector\n");
 	}
 
 	ret = ath_regd_init(&ar->ath_common.regulatory, ar->hw->wiphy,
 			    ath10k_reg_notifier);
 	if (ret) {
-		ath10k_err("Regulatory initialization failed: %i\n", ret);
+		ath10k_err("failed to initialise regulatory: %i\n", ret);
 		goto err_free;
 	}
 
 	ret = ieee80211_register_hw(ar->hw);
 	if (ret) {
-		ath10k_err("ieee80211 registration failed: %d\n", ret);
+		ath10k_err("failed to register ieee80211: %d\n", ret);
 		goto err_free;
 	}
 

From 53c02284564e867eff9d075befc65124493dbe60 Mon Sep 17 00:00:00 2001
From: Ben Greear <greearb@candelatech.com>
Date: Mon, 24 Mar 2014 12:20:41 -0700
Subject: [PATCH 27/48] ath10k: better firmware loading error messages

Let user know the name of the board file if it is not
found, and make it easier to determine the firmware
api being used.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.c | 36 ++++++++++++++------------
 1 file changed, 20 insertions(+), 16 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 471c219e5137..79c7d4859fe2 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -398,8 +398,8 @@ static int ath10k_core_fetch_firmware_api_n(struct ath10k *ar, const char *name)
 	/* first fetch the firmware file (firmware-*.bin) */
 	ar->firmware = ath10k_fetch_fw_file(ar, ar->hw_params.fw.dir, name);
 	if (IS_ERR(ar->firmware)) {
-		ath10k_err("Could not fetch firmware file '%s': %ld\n",
-			   name, PTR_ERR(ar->firmware));
+		ath10k_err("could not fetch firmware file '%s/%s': %ld\n",
+			   ar->hw_params.fw.dir, name, PTR_ERR(ar->firmware));
 		return PTR_ERR(ar->firmware);
 	}
 
@@ -410,14 +410,14 @@ static int ath10k_core_fetch_firmware_api_n(struct ath10k *ar, const char *name)
 	magic_len = strlen(ATH10K_FIRMWARE_MAGIC) + 1;
 
 	if (len < magic_len) {
-		ath10k_err("firmware image too small to contain magic: %zu\n",
-			   len);
+		ath10k_err("firmware file '%s/%s' too small to contain magic: %zu\n",
+			   ar->hw_params.fw.dir, name, len);
 		ret = -EINVAL;
 		goto err;
 	}
 
 	if (memcmp(data, ATH10K_FIRMWARE_MAGIC, magic_len) != 0) {
-		ath10k_err("Invalid firmware magic\n");
+		ath10k_err("invalid firmware magic\n");
 		ret = -EINVAL;
 		goto err;
 	}
@@ -439,7 +439,7 @@ static int ath10k_core_fetch_firmware_api_n(struct ath10k *ar, const char *name)
 		data += sizeof(*hdr);
 
 		if (len < ie_len) {
-			ath10k_err("Invalid length for FW IE %d (%zu < %zu)\n",
+			ath10k_err("invalid length for FW IE %d (%zu < %zu)\n",
 				   ie_id, len, ie_len);
 			ret = -EINVAL;
 			goto err;
@@ -522,8 +522,8 @@ static int ath10k_core_fetch_firmware_api_n(struct ath10k *ar, const char *name)
 	}
 
 	if (!ar->firmware_data || !ar->firmware_len) {
-		ath10k_warn("No ATH10K_FW_IE_FW_IMAGE found from %s, skipping\n",
-			    name);
+		ath10k_warn("No ATH10K_FW_IE_FW_IMAGE found from '%s/%s', skipping\n",
+			    ar->hw_params.fw.dir, name);
 		ret = -ENOMEDIUM;
 		goto err;
 	}
@@ -540,7 +540,9 @@ static int ath10k_core_fetch_firmware_api_n(struct ath10k *ar, const char *name)
 					 ar->hw_params.fw.board);
 	if (IS_ERR(ar->board)) {
 		ret = PTR_ERR(ar->board);
-		ath10k_err("could not fetch board data (%d)\n", ret);
+		ath10k_err("could not fetch board data '%s/%s' (%d)\n",
+			   ar->hw_params.fw.dir, ar->hw_params.fw.board,
+			   ret);
 		goto err;
 	}
 
@@ -558,19 +560,21 @@ static int ath10k_core_fetch_firmware_files(struct ath10k *ar)
 {
 	int ret;
 
+	ar->fw_api = 2;
+	ath10k_dbg(ATH10K_DBG_BOOT, "trying fw api %d\n", ar->fw_api);
+
 	ret = ath10k_core_fetch_firmware_api_n(ar, ATH10K_FW_API2_FILE);
-	if (ret == 0) {
-		ar->fw_api = 2;
-		goto out;
-	}
+	if (ret == 0)
+		goto success;
+
+	ar->fw_api = 1;
+	ath10k_dbg(ATH10K_DBG_BOOT, "trying fw api %d\n", ar->fw_api);
 
 	ret = ath10k_core_fetch_firmware_api_1(ar);
 	if (ret)
 		return ret;
 
-	ar->fw_api = 1;
-
-out:
+success:
 	ath10k_dbg(ATH10K_DBG_BOOT, "using fw api %d\n", ar->fw_api);
 
 	return 0;

From 36a8f413a3a53d0d77234e8ec7d29d50dfc2cf24 Mon Sep 17 00:00:00 2001
From: Ben Greear <greearb@candelatech.com>
Date: Mon, 24 Mar 2014 12:20:42 -0700
Subject: [PATCH 28/48] ath10k: add otp and firmware boot error messages

If OTP or firmware fails to load properly, print out some
extra info in the kernel logs.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 79c7d4859fe2..da59c8aa8b6e 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -255,7 +255,8 @@ static int ath10k_download_and_run_otp(struct ath10k *ar)
 	/* OTP is optional */
 
 	if (!ar->otp_data || !ar->otp_len) {
-		ath10k_warn("Not running otp, calibration will be incorrect!\n");
+		ath10k_warn("Not running otp, calibration will be incorrect (otp-data %p otp_len %zd)!\n",
+			    ar->otp_data, ar->otp_len);
 		return 0;
 	}
 
@@ -585,16 +586,22 @@ static int ath10k_init_download_firmware(struct ath10k *ar)
 	int ret;
 
 	ret = ath10k_download_board_data(ar);
-	if (ret)
+	if (ret) {
+		ath10k_err("failed to download board data: %d\n", ret);
 		return ret;
+	}
 
 	ret = ath10k_download_and_run_otp(ar);
-	if (ret)
+	if (ret) {
+		ath10k_err("failed to run otp: %d\n", ret);
 		return ret;
+	}
 
 	ret = ath10k_download_fw(ar);
-	if (ret)
+	if (ret) {
+		ath10k_err("failed to download firmware: %d\n", ret);
 		return ret;
+	}
 
 	return ret;
 }

From 0399eca8003945ab626c63ba5d796d57f81a8eb0 Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Fri, 28 Mar 2014 09:32:21 +0200
Subject: [PATCH 29/48] ath10k: cleanup ath10k_pci_wait_for_target_init()

ath10k_pci_wait_for_target_init() did really follow the style used elsewhere in
ath10k. Use ath10k_pci_read/write() wrappers, simplify the while loop and
improve warning messages.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/pci.c | 42 ++++++++++++++++++---------
 1 file changed, 28 insertions(+), 14 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index 9d242d801d9d..43d63677b133 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -48,6 +48,9 @@ MODULE_PARM_DESC(ath10k_target_ps, "Enable ath10k Target (SoC) PS option");
 module_param_named(irq_mode, ath10k_pci_irq_mode, uint, 0644);
 MODULE_PARM_DESC(irq_mode, "0: auto, 1: legacy, 2: msi (default: 0)");
 
+/* how long wait to wait for target to initialise, in ms */
+#define ATH10K_PCI_TARGET_WAIT 3000
+
 #define QCA988X_2_0_DEVICE_ID	(0x003c)
 
 static DEFINE_PCI_DEVICE_TABLE(ath10k_pci_id_table) = {
@@ -2385,30 +2388,41 @@ static int ath10k_pci_deinit_irq(struct ath10k *ar)
 static int ath10k_pci_wait_for_target_init(struct ath10k *ar)
 {
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
-	int wait_limit = 300; /* 3 sec */
+	unsigned long timeout;
 	int ret;
+	u32 val;
 
 	ret = ath10k_pci_wake(ar);
 	if (ret) {
-		ath10k_err("failed to wake up target: %d\n", ret);
+		ath10k_err("failed to wake up target for init: %d\n", ret);
 		return ret;
 	}
 
-	while (wait_limit-- &&
-	       !(ioread32(ar_pci->mem + FW_INDICATOR_ADDRESS) &
-		 FW_IND_INITIALIZED)) {
+	timeout = jiffies + msecs_to_jiffies(ATH10K_PCI_TARGET_WAIT);
+
+	do {
+		val = ath10k_pci_read32(ar, FW_INDICATOR_ADDRESS);
+
+		/* target should never return this */
+		if (val == 0xffffffff)
+			continue;
+
+		if (val & FW_IND_INITIALIZED)
+			break;
+
 		if (ar_pci->num_msi_intrs == 0)
 			/* Fix potential race by repeating CORE_BASE writes */
-			iowrite32(PCIE_INTR_FIRMWARE_MASK |
-				  PCIE_INTR_CE_MASK_ALL,
-				  ar_pci->mem + (SOC_CORE_BASE_ADDRESS |
-						 PCIE_INTR_ENABLE_ADDRESS));
-		mdelay(10);
-	}
+			ath10k_pci_soc_write32(ar, PCIE_INTR_ENABLE_ADDRESS,
+					       PCIE_INTR_FIRMWARE_MASK |
+					       PCIE_INTR_CE_MASK_ALL);
 
-	if (wait_limit < 0) {
-		ath10k_err("target stalled\n");
-		ret = -EIO;
+		mdelay(10);
+	} while (time_before(jiffies, timeout));
+
+	if (val == 0xffffffff || !(val & FW_IND_INITIALIZED)) {
+		ath10k_err("failed to receive initialized event from target: %08x\n",
+			   val);
+		ret = -ETIMEDOUT;
 		goto out;
 	}
 

From 35098463a8d340b419786356a807b04c28c82e3a Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Fri, 28 Mar 2014 09:32:27 +0200
Subject: [PATCH 30/48] ath10k: add module parameter to disable cold reset

As cold reset is not reliable with CUS223 boards, make it possible
to disable cold reset entirely and only use warm reset. This makes it also
easier to debug warm reset problems.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/pci.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index 43d63677b133..9dab859ed77b 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -39,8 +39,14 @@ enum ath10k_pci_irq_mode {
 	ATH10K_PCI_IRQ_MSI = 2,
 };
 
+enum ath10k_pci_reset_mode {
+	ATH10K_PCI_RESET_AUTO = 0,
+	ATH10K_PCI_RESET_WARM_ONLY = 1,
+};
+
 static unsigned int ath10k_target_ps;
 static unsigned int ath10k_pci_irq_mode = ATH10K_PCI_IRQ_AUTO;
+static unsigned int ath10k_pci_reset_mode = ATH10K_PCI_RESET_AUTO;
 
 module_param(ath10k_target_ps, uint, 0644);
 MODULE_PARM_DESC(ath10k_target_ps, "Enable ath10k Target (SoC) PS option");
@@ -48,6 +54,9 @@ MODULE_PARM_DESC(ath10k_target_ps, "Enable ath10k Target (SoC) PS option");
 module_param_named(irq_mode, ath10k_pci_irq_mode, uint, 0644);
 MODULE_PARM_DESC(irq_mode, "0: auto, 1: legacy, 2: msi (default: 0)");
 
+module_param_named(reset_mode, ath10k_pci_reset_mode, uint, 0644);
+MODULE_PARM_DESC(reset_mode, "0: auto, 1: warm only (default: 0)");
+
 /* how long wait to wait for target to initialise, in ms */
 #define ATH10K_PCI_TARGET_WAIT 3000
 
@@ -1969,9 +1978,14 @@ static int ath10k_pci_hif_power_up(struct ath10k *ar)
 	 */
 	ret = __ath10k_pci_hif_power_up(ar, false);
 	if (ret) {
-		ath10k_warn("failed to power up target using warm reset (%d), trying cold reset\n",
+		ath10k_warn("failed to power up target using warm reset: %d\n",
 			    ret);
 
+		if (ath10k_pci_reset_mode == ATH10K_PCI_RESET_WARM_ONLY)
+			return ret;
+
+		ath10k_warn("trying cold reset\n");
+
 		ret = __ath10k_pci_hif_power_up(ar, true);
 		if (ret) {
 			ath10k_err("failed to power up target using cold reset too (%d)\n",

From e42c1fbd130243c3c3c3c2aaad5e2d078db24e57 Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Fri, 28 Mar 2014 09:32:33 +0200
Subject: [PATCH 31/48] ath10k: fix name of target_ps module parameter

The parameter name was ath10k_target_ps, but actually it should be just
target_ps. Module parameter names should not use the ath10k_ prefix.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/pci.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index 9dab859ed77b..670e6734a46b 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -44,12 +44,12 @@ enum ath10k_pci_reset_mode {
 	ATH10K_PCI_RESET_WARM_ONLY = 1,
 };
 
-static unsigned int ath10k_target_ps;
+static unsigned int ath10k_pci_target_ps;
 static unsigned int ath10k_pci_irq_mode = ATH10K_PCI_IRQ_AUTO;
 static unsigned int ath10k_pci_reset_mode = ATH10K_PCI_RESET_AUTO;
 
-module_param(ath10k_target_ps, uint, 0644);
-MODULE_PARM_DESC(ath10k_target_ps, "Enable ath10k Target (SoC) PS option");
+module_param_named(target_ps, ath10k_pci_target_ps, uint, 0644);
+MODULE_PARM_DESC(target_ps, "Enable ath10k Target (SoC) PS option");
 
 module_param_named(irq_mode, ath10k_pci_irq_mode, uint, 0644);
 MODULE_PARM_DESC(irq_mode, "0: auto, 1: legacy, 2: msi (default: 0)");
@@ -2531,7 +2531,7 @@ static int ath10k_pci_probe(struct pci_dev *pdev,
 		goto err_ar_pci;
 	}
 
-	if (ath10k_target_ps)
+	if (ath10k_pci_target_ps)
 		set_bit(ATH10K_PCI_FEATURE_SOC_POWER_SAVE, ar_pci->features);
 
 	ath10k_pci_dump_features(ar_pci);

From 929417cf0e8e97c2beab7d1deeb6dc037d808c61 Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Fri, 28 Mar 2014 09:32:39 +0200
Subject: [PATCH 32/48] ath10k: advertise only firmware API 2 files

We do not really support older firmware API 1 anymore, so better remove
MODULE_FIRMWARE() declarations for them and only list for API 2 files.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/hw.h  | 1 +
 drivers/net/wireless/ath/ath10k/pci.c | 3 +--
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/hw.h b/drivers/net/wireless/ath/ath10k/hw.h
index 35fc44e281f5..007e855f4ba9 100644
--- a/drivers/net/wireless/ath/ath10k/hw.h
+++ b/drivers/net/wireless/ath/ath10k/hw.h
@@ -28,6 +28,7 @@
 #define QCA988X_HW_2_0_CHIP_ID_REV	0x2
 #define QCA988X_HW_2_0_FW_DIR		"ath10k/QCA988X/hw2.0"
 #define QCA988X_HW_2_0_FW_FILE		"firmware.bin"
+#define QCA988X_HW_2_0_FW_2_FILE	"firmware-2.bin"
 #define QCA988X_HW_2_0_OTP_FILE		"otp.bin"
 #define QCA988X_HW_2_0_BOARD_DATA_FILE	"board.bin"
 #define QCA988X_HW_2_0_PATCH_LOAD_ADDR	0x1234
diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index 670e6734a46b..085c7ee741b1 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -2708,6 +2708,5 @@ module_exit(ath10k_pci_exit);
 MODULE_AUTHOR("Qualcomm Atheros");
 MODULE_DESCRIPTION("Driver support for Atheros QCA988X PCIe devices");
 MODULE_LICENSE("Dual BSD/GPL");
-MODULE_FIRMWARE(QCA988X_HW_2_0_FW_DIR "/" QCA988X_HW_2_0_FW_FILE);
-MODULE_FIRMWARE(QCA988X_HW_2_0_FW_DIR "/" QCA988X_HW_2_0_OTP_FILE);
+MODULE_FIRMWARE(QCA988X_HW_2_0_FW_DIR "/" QCA988X_HW_2_0_FW_2_FILE);
 MODULE_FIRMWARE(QCA988X_HW_2_0_FW_DIR "/" QCA988X_HW_2_0_BOARD_DATA_FILE);

From b39712ce2944d7728cbd6a374fc9981522ced14a Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Fri, 28 Mar 2014 09:32:46 +0200
Subject: [PATCH 33/48] ath10k: delete ar_pci->fw_indicator_address

It always contains the same constant, no need to have a separate variable for it.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/pci.c | 16 ++++++----------
 drivers/net/wireless/ath/ath10k/pci.h |  3 ---
 2 files changed, 6 insertions(+), 13 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index 085c7ee741b1..14d955b45c00 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -1753,16 +1753,15 @@ static int ath10k_pci_ce_init(struct ath10k *ar)
 static void ath10k_pci_fw_interrupt_handler(struct ath10k *ar)
 {
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
-	u32 fw_indicator_address, fw_indicator;
+	u32 fw_indicator;
 
 	ath10k_pci_wake(ar);
 
-	fw_indicator_address = ar_pci->fw_indicator_address;
-	fw_indicator = ath10k_pci_read32(ar, fw_indicator_address);
+	fw_indicator = ath10k_pci_read32(ar, FW_INDICATOR_ADDRESS);
 
 	if (fw_indicator & FW_IND_EVENT_PENDING) {
 		/* ACK: clear Target-side pending event */
-		ath10k_pci_write32(ar, fw_indicator_address,
+		ath10k_pci_write32(ar, FW_INDICATOR_ADDRESS,
 				   fw_indicator & ~FW_IND_EVENT_PENDING);
 
 		if (ar_pci->started) {
@@ -1781,7 +1780,6 @@ static void ath10k_pci_fw_interrupt_handler(struct ath10k *ar)
 
 static int ath10k_pci_warm_reset(struct ath10k *ar)
 {
-	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
 	int ret = 0;
 	u32 val;
 
@@ -1813,7 +1811,7 @@ static int ath10k_pci_warm_reset(struct ath10k *ar)
 	msleep(100);
 
 	/* clear fw indicator */
-	ath10k_pci_write32(ar, ar_pci->fw_indicator_address, 0);
+	ath10k_pci_write32(ar, FW_INDICATOR_ADDRESS, 0);
 
 	/* clear target LF timer interrupts */
 	val = ath10k_pci_read32(ar, RTC_SOC_BASE_ADDRESS +
@@ -2154,7 +2152,6 @@ static irqreturn_t ath10k_pci_interrupt_handler(int irq, void *arg)
 static void ath10k_pci_early_irq_tasklet(unsigned long data)
 {
 	struct ath10k *ar = (struct ath10k *)data;
-	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
 	u32 fw_ind;
 	int ret;
 
@@ -2165,9 +2162,9 @@ static void ath10k_pci_early_irq_tasklet(unsigned long data)
 		return;
 	}
 
-	fw_ind = ath10k_pci_read32(ar, ar_pci->fw_indicator_address);
+	fw_ind = ath10k_pci_read32(ar, FW_INDICATOR_ADDRESS);
 	if (fw_ind & FW_IND_EVENT_PENDING) {
-		ath10k_pci_write32(ar, ar_pci->fw_indicator_address,
+		ath10k_pci_write32(ar, FW_INDICATOR_ADDRESS,
 				   fw_ind & ~FW_IND_EVENT_PENDING);
 
 		/* Some structures are unavailable during early boot or at
@@ -2544,7 +2541,6 @@ static int ath10k_pci_probe(struct pci_dev *pdev,
 	}
 
 	ar_pci->ar = ar;
-	ar_pci->fw_indicator_address = FW_INDICATOR_ADDRESS;
 	atomic_set(&ar_pci->keep_awake_count, 0);
 
 	pci_set_drvdata(pdev, ar);
diff --git a/drivers/net/wireless/ath/ath10k/pci.h b/drivers/net/wireless/ath/ath10k/pci.h
index b43fdb4f7319..dfdebb4157aa 100644
--- a/drivers/net/wireless/ath/ath10k/pci.h
+++ b/drivers/net/wireless/ath/ath10k/pci.h
@@ -189,9 +189,6 @@ struct ath10k_pci {
 
 	struct ath10k_hif_cb msg_callbacks_current;
 
-	/* Target address used to signal a pending firmware event */
-	u32 fw_indicator_address;
-
 	/* Copy Engine used for Diagnostic Accesses */
 	struct ath10k_ce_pipe *ce_diag;
 

From 50f87a674ffad867780dca0ba276ebd6878413d6 Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Fri, 28 Mar 2014 09:32:52 +0200
Subject: [PATCH 34/48] ath10k: improve pci debug messages

To make it easier to debug pci problems improve the log messages in pci.c. Also
change some debug messages to warning messages to more easily catch problems.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/pci.c | 44 +++++++++++++++++++++------
 1 file changed, 35 insertions(+), 9 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index 14d955b45c00..a4e2da3251dc 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -454,8 +454,8 @@ static int ath10k_pci_diag_read_mem(struct ath10k *ar, u32 address, void *data,
 				__le32_to_cpu(((__le32 *)data_buf)[i]);
 		}
 	} else
-		ath10k_dbg(ATH10K_DBG_PCI, "%s failure (0x%x)\n",
-			   __func__, address);
+		ath10k_warn("failed to read diag value at 0x%x: %d\n",
+			    address, ret);
 
 	if (data_buf)
 		pci_free_consistent(ar_pci->pdev, orig_nbytes,
@@ -605,8 +605,8 @@ static int ath10k_pci_diag_write_mem(struct ath10k *ar, u32 address,
 	}
 
 	if (ret != 0)
-		ath10k_dbg(ATH10K_DBG_PCI, "%s failure (0x%x)\n", __func__,
-			   address);
+		ath10k_warn("failed to write diag value at 0x%x: %d\n",
+			    address, ret);
 
 	return ret;
 }
@@ -815,6 +815,9 @@ static int ath10k_pci_hif_tx_sg(struct ath10k *ar, u8 pipe_id,
 static u16 ath10k_pci_hif_get_free_queue_number(struct ath10k *ar, u8 pipe)
 {
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+
+	ath10k_dbg(ATH10K_DBG_PCI, "pci hif get free queue number\n");
+
 	return ath10k_ce_num_free_src_entries(ar_pci->pipe_info[pipe].ce_hdl);
 }
 
@@ -866,6 +869,8 @@ static void ath10k_pci_hif_dump_area(struct ath10k *ar)
 static void ath10k_pci_hif_send_complete_check(struct ath10k *ar, u8 pipe,
 					       int force)
 {
+	ath10k_dbg(ATH10K_DBG_PCI, "pci hif send complete check\n");
+
 	if (!force) {
 		int resources;
 		/*
@@ -892,7 +897,7 @@ static void ath10k_pci_hif_set_callbacks(struct ath10k *ar,
 {
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
 
-	ath10k_dbg(ATH10K_DBG_PCI, "%s\n", __func__);
+	ath10k_dbg(ATH10K_DBG_PCI, "pci hif set callbacks\n");
 
 	memcpy(&ar_pci->msg_callbacks_current, callbacks,
 	       sizeof(ar_pci->msg_callbacks_current));
@@ -950,6 +955,8 @@ static int ath10k_pci_hif_map_service_to_pipe(struct ath10k *ar,
 {
 	int ret = 0;
 
+	ath10k_dbg(ATH10K_DBG_PCI, "pci hif map service\n");
+
 	/* polling for received messages not supported */
 	*dl_is_polled = 0;
 
@@ -1009,6 +1016,8 @@ static void ath10k_pci_hif_get_default_pipe(struct ath10k *ar,
 {
 	int ul_is_polled, dl_is_polled;
 
+	ath10k_dbg(ATH10K_DBG_PCI, "pci hif get default pipe\n");
+
 	(void)ath10k_pci_hif_map_service_to_pipe(ar,
 						 ATH10K_HTC_SVC_ID_RSVD_CTRL,
 						 ul_pipe,
@@ -1110,6 +1119,8 @@ static int ath10k_pci_hif_start(struct ath10k *ar)
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
 	int ret, ret_early;
 
+	ath10k_dbg(ATH10K_DBG_BOOT, "boot hif start\n");
+
 	ath10k_pci_free_early_irq(ar);
 	ath10k_pci_kill_tasklet(ar);
 
@@ -1264,7 +1275,7 @@ static void ath10k_pci_hif_stop(struct ath10k *ar)
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
 	int ret;
 
-	ath10k_dbg(ATH10K_DBG_PCI, "%s\n", __func__);
+	ath10k_dbg(ATH10K_DBG_BOOT, "boot hif stop\n");
 
 	ret = ath10k_ce_disable_interrupts(ar);
 	if (ret)
@@ -1783,7 +1794,7 @@ static int ath10k_pci_warm_reset(struct ath10k *ar)
 	int ret = 0;
 	u32 val;
 
-	ath10k_dbg(ATH10K_DBG_BOOT, "boot performing warm chip reset\n");
+	ath10k_dbg(ATH10K_DBG_BOOT, "boot warm reset\n");
 
 	ret = ath10k_do_pci_wake(ar);
 	if (ret) {
@@ -1966,6 +1977,8 @@ static int ath10k_pci_hif_power_up(struct ath10k *ar)
 {
 	int ret;
 
+	ath10k_dbg(ATH10K_DBG_BOOT, "boot hif power up\n");
+
 	/*
 	 * Hardware CUS232 version 2 has some issues with cold reset and the
 	 * preferred (and safer) way to perform a device reset is through a
@@ -1999,6 +2012,8 @@ static void ath10k_pci_hif_power_down(struct ath10k *ar)
 {
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
 
+	ath10k_dbg(ATH10K_DBG_BOOT, "boot hif power down\n");
+
 	ath10k_pci_free_early_irq(ar);
 	ath10k_pci_kill_tasklet(ar);
 	ath10k_pci_deinit_irq(ar);
@@ -2403,6 +2418,8 @@ static int ath10k_pci_wait_for_target_init(struct ath10k *ar)
 	int ret;
 	u32 val;
 
+	ath10k_dbg(ATH10K_DBG_BOOT, "boot waiting target to initialise\n");
+
 	ret = ath10k_pci_wake(ar);
 	if (ret) {
 		ath10k_err("failed to wake up target for init: %d\n", ret);
@@ -2414,6 +2431,8 @@ static int ath10k_pci_wait_for_target_init(struct ath10k *ar)
 	do {
 		val = ath10k_pci_read32(ar, FW_INDICATOR_ADDRESS);
 
+		ath10k_dbg(ATH10K_DBG_BOOT, "boot target indicator %x\n", val);
+
 		/* target should never return this */
 		if (val == 0xffffffff)
 			continue;
@@ -2437,6 +2456,8 @@ static int ath10k_pci_wait_for_target_init(struct ath10k *ar)
 		goto out;
 	}
 
+	ath10k_dbg(ATH10K_DBG_BOOT, "boot target initialised\n");
+
 out:
 	ath10k_pci_sleep(ar);
 	return ret;
@@ -2447,6 +2468,8 @@ static int ath10k_pci_cold_reset(struct ath10k *ar)
 	int i, ret;
 	u32 val;
 
+	ath10k_dbg(ATH10K_DBG_BOOT, "boot cold reset\n");
+
 	ret = ath10k_do_pci_wake(ar);
 	if (ret) {
 		ath10k_err("failed to wake up target: %d\n",
@@ -2478,6 +2501,9 @@ static int ath10k_pci_cold_reset(struct ath10k *ar)
 	}
 
 	ath10k_do_pci_sleep(ar);
+
+	ath10k_dbg(ATH10K_DBG_BOOT, "boot cold reset complete\n");
+
 	return 0;
 }
 
@@ -2509,7 +2535,7 @@ static int ath10k_pci_probe(struct pci_dev *pdev,
 	struct ath10k_pci *ar_pci;
 	u32 lcr_val, chip_id;
 
-	ath10k_dbg(ATH10K_DBG_PCI, "%s\n", __func__);
+	ath10k_dbg(ATH10K_DBG_PCI, "pci probe\n");
 
 	ar_pci = kzalloc(sizeof(*ar_pci), GFP_KERNEL);
 	if (ar_pci == NULL)
@@ -2650,7 +2676,7 @@ static void ath10k_pci_remove(struct pci_dev *pdev)
 	struct ath10k *ar = pci_get_drvdata(pdev);
 	struct ath10k_pci *ar_pci;
 
-	ath10k_dbg(ATH10K_DBG_PCI, "%s\n", __func__);
+	ath10k_dbg(ATH10K_DBG_PCI, "pci remove\n");
 
 	if (!ar)
 		return;

From 78a9cb4ce7fc29d3c19dd7e7081117514b2574d6 Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Fri, 28 Mar 2014 09:32:58 +0200
Subject: [PATCH 35/48] ath10k: add module parameter values to the pci info
 print

Hopefully this makes it easier to debug problems in the future.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/pci.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index a4e2da3251dc..dd34ac9a682f 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -1955,7 +1955,9 @@ static int __ath10k_pci_hif_power_up(struct ath10k *ar, bool cold_reset)
 		irq_mode = "legacy";
 
 	if (!test_bit(ATH10K_FLAG_FIRST_BOOT_DONE, &ar->dev_flags))
-		ath10k_info("pci irq %s\n", irq_mode);
+		ath10k_info("pci irq %s irq_mode %d reset_mode %d\n",
+			    irq_mode, ath10k_pci_irq_mode,
+			    ath10k_pci_reset_mode);
 
 	return 0;
 

From c508671dd589e75c0d5092a0a3c15d0375d3ce48 Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Fri, 28 Mar 2014 09:33:04 +0200
Subject: [PATCH 36/48] ath10k: print chip id during boot

This makes it easier to debug what kind of board is used.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index da59c8aa8b6e..6abde37fb339 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -855,9 +855,12 @@ int ath10k_core_start(struct ath10k *ar)
 	INIT_LIST_HEAD(&ar->arvifs);
 
 	if (!test_bit(ATH10K_FLAG_FIRST_BOOT_DONE, &ar->dev_flags))
-		ath10k_info("%s (0x%x) fw %s api %d htt %d.%d\n",
-			    ar->hw_params.name, ar->target_version,
-			    ar->hw->wiphy->fw_version, ar->fw_api,
+		ath10k_info("%s (0x%08x, 0x%08x) fw %s api %d htt %d.%d\n",
+			    ar->hw_params.name,
+			    ar->target_version,
+			    ar->chip_id,
+			    ar->hw->wiphy->fw_version,
+			    ar->fw_api,
 			    ar->htt.target_version_major,
 			    ar->htt.target_version_minor);
 

From 68c03249f388aafe74f0e87e2743294d4384c00c Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Fri, 28 Mar 2014 10:02:35 +0200
Subject: [PATCH 37/48] ath10k: convert pci_alloc_consistent() to
 dma_alloc_coherent()

This allows to use GFP_KERNEL allocation. This
should decrease chance of allocation failure, e.g.
during firmware recovery.

Reported-By: Avery Pennarun <apenwarr@gmail.com>
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/ce.c  | 53 +++++++++++++--------------
 drivers/net/wireless/ath/ath10k/pci.c | 22 ++++++-----
 2 files changed, 37 insertions(+), 38 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/ce.c b/drivers/net/wireless/ath/ath10k/ce.c
index a79499c82350..653a240142e5 100644
--- a/drivers/net/wireless/ath/ath10k/ce.c
+++ b/drivers/net/wireless/ath/ath10k/ce.c
@@ -843,7 +843,6 @@ static int ath10k_ce_init_src_ring(struct ath10k *ar,
 				   struct ath10k_ce_pipe *ce_state,
 				   const struct ce_attr *attr)
 {
-	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
 	struct ath10k_ce_ring *src_ring;
 	unsigned int nentries = attr->src_nentries;
 	unsigned int ce_nbytes;
@@ -885,10 +884,10 @@ static int ath10k_ce_init_src_ring(struct ath10k *ar,
 	 * coherent DMA are unsupported
 	 */
 	src_ring->base_addr_owner_space_unaligned =
-		pci_alloc_consistent(ar_pci->pdev,
-				     (nentries * sizeof(struct ce_desc) +
-				      CE_DESC_RING_ALIGN),
-				     &base_addr);
+		dma_alloc_coherent(ar->dev,
+				   (nentries * sizeof(struct ce_desc) +
+				    CE_DESC_RING_ALIGN),
+				   &base_addr, GFP_KERNEL);
 	if (!src_ring->base_addr_owner_space_unaligned) {
 		kfree(ce_state->src_ring);
 		ce_state->src_ring = NULL;
@@ -912,11 +911,11 @@ static int ath10k_ce_init_src_ring(struct ath10k *ar,
 		kmalloc((nentries * sizeof(struct ce_desc) +
 			 CE_DESC_RING_ALIGN), GFP_KERNEL);
 	if (!src_ring->shadow_base_unaligned) {
-		pci_free_consistent(ar_pci->pdev,
-				    (nentries * sizeof(struct ce_desc) +
-				     CE_DESC_RING_ALIGN),
-				    src_ring->base_addr_owner_space,
-				    src_ring->base_addr_ce_space);
+		dma_free_coherent(ar->dev,
+				  (nentries * sizeof(struct ce_desc) +
+				   CE_DESC_RING_ALIGN),
+				  src_ring->base_addr_owner_space,
+				  src_ring->base_addr_ce_space);
 		kfree(ce_state->src_ring);
 		ce_state->src_ring = NULL;
 		return -ENOMEM;
@@ -946,7 +945,6 @@ static int ath10k_ce_init_dest_ring(struct ath10k *ar,
 				    struct ath10k_ce_pipe *ce_state,
 				    const struct ce_attr *attr)
 {
-	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
 	struct ath10k_ce_ring *dest_ring;
 	unsigned int nentries = attr->dest_nentries;
 	unsigned int ce_nbytes;
@@ -986,10 +984,10 @@ static int ath10k_ce_init_dest_ring(struct ath10k *ar,
 	 * coherent DMA are unsupported
 	 */
 	dest_ring->base_addr_owner_space_unaligned =
-		pci_alloc_consistent(ar_pci->pdev,
-				     (nentries * sizeof(struct ce_desc) +
-				      CE_DESC_RING_ALIGN),
-				     &base_addr);
+		dma_alloc_coherent(ar->dev,
+				   (nentries * sizeof(struct ce_desc) +
+				    CE_DESC_RING_ALIGN),
+				   &base_addr, GFP_KERNEL);
 	if (!dest_ring->base_addr_owner_space_unaligned) {
 		kfree(ce_state->dest_ring);
 		ce_state->dest_ring = NULL;
@@ -1112,26 +1110,25 @@ struct ath10k_ce_pipe *ath10k_ce_init(struct ath10k *ar,
 void ath10k_ce_deinit(struct ath10k_ce_pipe *ce_state)
 {
 	struct ath10k *ar = ce_state->ar;
-	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
 
 	if (ce_state->src_ring) {
 		kfree(ce_state->src_ring->shadow_base_unaligned);
-		pci_free_consistent(ar_pci->pdev,
-				    (ce_state->src_ring->nentries *
-				     sizeof(struct ce_desc) +
-				     CE_DESC_RING_ALIGN),
-				    ce_state->src_ring->base_addr_owner_space,
-				    ce_state->src_ring->base_addr_ce_space);
+		dma_free_coherent(ar->dev,
+				  (ce_state->src_ring->nentries *
+				   sizeof(struct ce_desc) +
+				   CE_DESC_RING_ALIGN),
+				  ce_state->src_ring->base_addr_owner_space,
+				  ce_state->src_ring->base_addr_ce_space);
 		kfree(ce_state->src_ring);
 	}
 
 	if (ce_state->dest_ring) {
-		pci_free_consistent(ar_pci->pdev,
-				    (ce_state->dest_ring->nentries *
-				     sizeof(struct ce_desc) +
-				     CE_DESC_RING_ALIGN),
-				    ce_state->dest_ring->base_addr_owner_space,
-				    ce_state->dest_ring->base_addr_ce_space);
+		dma_free_coherent(ar->dev,
+				  (ce_state->dest_ring->nentries *
+				   sizeof(struct ce_desc) +
+				   CE_DESC_RING_ALIGN),
+				  ce_state->dest_ring->base_addr_owner_space,
+				  ce_state->dest_ring->base_addr_ce_space);
 		kfree(ce_state->dest_ring);
 	}
 
diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index dd34ac9a682f..337af7e22b30 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -358,9 +358,10 @@ static int ath10k_pci_diag_read_mem(struct ath10k *ar, u32 address, void *data,
 	 *   2) Buffer in DMA-able space
 	 */
 	orig_nbytes = nbytes;
-	data_buf = (unsigned char *)pci_alloc_consistent(ar_pci->pdev,
-							 orig_nbytes,
-							 &ce_data_base);
+	data_buf = (unsigned char *)dma_alloc_coherent(ar->dev,
+						       orig_nbytes,
+						       &ce_data_base,
+						       GFP_ATOMIC);
 
 	if (!data_buf) {
 		ret = -ENOMEM;
@@ -458,8 +459,8 @@ static int ath10k_pci_diag_read_mem(struct ath10k *ar, u32 address, void *data,
 			    address, ret);
 
 	if (data_buf)
-		pci_free_consistent(ar_pci->pdev, orig_nbytes,
-				    data_buf, ce_data_base);
+		dma_free_coherent(ar->dev, orig_nbytes, data_buf,
+				  ce_data_base);
 
 	return ret;
 }
@@ -502,9 +503,10 @@ static int ath10k_pci_diag_write_mem(struct ath10k *ar, u32 address,
 	 *   2) Buffer in DMA-able space
 	 */
 	orig_nbytes = nbytes;
-	data_buf = (unsigned char *)pci_alloc_consistent(ar_pci->pdev,
-							 orig_nbytes,
-							 &ce_data_base);
+	data_buf = (unsigned char *)dma_alloc_coherent(ar->dev,
+						       orig_nbytes,
+						       &ce_data_base,
+						       GFP_ATOMIC);
 	if (!data_buf) {
 		ret = -ENOMEM;
 		goto done;
@@ -600,8 +602,8 @@ static int ath10k_pci_diag_write_mem(struct ath10k *ar, u32 address,
 
 done:
 	if (data_buf) {
-		pci_free_consistent(ar_pci->pdev, orig_nbytes, data_buf,
-				    ce_data_base);
+		dma_free_coherent(ar->dev, orig_nbytes, data_buf,
+				  ce_data_base);
 	}
 
 	if (ret != 0)

From 25d0dbcbd5c746631ec1ee08bbbc4eba86bb9163 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Fri, 28 Mar 2014 10:02:38 +0200
Subject: [PATCH 38/48] ath10k: split ce initialization and allocation

Definitions by which copy engine structure are
allocated do not change so it doesn't make much
sense to re-create those structures each time
device is booted (e.g. due to firmware recovery).

This should decrease chance of memory allocation
failures.

While at it remove per_transfer_context pointer
indirection. The array has been trailing the copy
engine ringbuffer structure anyway. This also
saves pointer size worth of bytes for each copy
engine ringbuffer.

Reported-By: Avery Pennarun <apenwarr@gmail.com>
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/ce.c  | 307 +++++++++++++++-----------
 drivers/net/wireless/ath/ath10k/ce.h  |  15 +-
 drivers/net/wireless/ath/ath10k/pci.c |  64 ++++--
 3 files changed, 228 insertions(+), 158 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/ce.c b/drivers/net/wireless/ath/ath10k/ce.c
index 653a240142e5..1e4cad8632b5 100644
--- a/drivers/net/wireless/ath/ath10k/ce.c
+++ b/drivers/net/wireless/ath/ath10k/ce.c
@@ -840,34 +840,17 @@ void ath10k_ce_recv_cb_register(struct ath10k_ce_pipe *ce_state,
 
 static int ath10k_ce_init_src_ring(struct ath10k *ar,
 				   unsigned int ce_id,
-				   struct ath10k_ce_pipe *ce_state,
 				   const struct ce_attr *attr)
 {
-	struct ath10k_ce_ring *src_ring;
-	unsigned int nentries = attr->src_nentries;
-	unsigned int ce_nbytes;
-	u32 ctrl_addr = ath10k_ce_base_address(ce_id);
-	dma_addr_t base_addr;
-	char *ptr;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct ath10k_ce_pipe *ce_state = &ar_pci->ce_states[ce_id];
+	struct ath10k_ce_ring *src_ring = ce_state->src_ring;
+	u32 nentries, ctrl_addr = ath10k_ce_base_address(ce_id);
 
-	nentries = roundup_pow_of_two(nentries);
+	nentries = roundup_pow_of_two(attr->src_nentries);
 
-	if (ce_state->src_ring) {
-		WARN_ON(ce_state->src_ring->nentries != nentries);
-		return 0;
-	}
-
-	ce_nbytes = sizeof(struct ath10k_ce_ring) + (nentries * sizeof(void *));
-	ptr = kzalloc(ce_nbytes, GFP_KERNEL);
-	if (ptr == NULL)
-		return -ENOMEM;
-
-	ce_state->src_ring = (struct ath10k_ce_ring *)ptr;
-	src_ring = ce_state->src_ring;
-
-	ptr += sizeof(struct ath10k_ce_ring);
-	src_ring->nentries = nentries;
-	src_ring->nentries_mask = nentries - 1;
+	memset(src_ring->per_transfer_context, 0,
+	       nentries * sizeof(*src_ring->per_transfer_context));
 
 	src_ring->sw_index = ath10k_ce_src_ring_read_index_get(ar, ctrl_addr);
 	src_ring->sw_index &= src_ring->nentries_mask;
@@ -877,7 +860,74 @@ static int ath10k_ce_init_src_ring(struct ath10k *ar,
 		ath10k_ce_src_ring_write_index_get(ar, ctrl_addr);
 	src_ring->write_index &= src_ring->nentries_mask;
 
-	src_ring->per_transfer_context = (void **)ptr;
+	ath10k_ce_src_ring_base_addr_set(ar, ctrl_addr,
+					 src_ring->base_addr_ce_space);
+	ath10k_ce_src_ring_size_set(ar, ctrl_addr, nentries);
+	ath10k_ce_src_ring_dmax_set(ar, ctrl_addr, attr->src_sz_max);
+	ath10k_ce_src_ring_byte_swap_set(ar, ctrl_addr, 0);
+	ath10k_ce_src_ring_lowmark_set(ar, ctrl_addr, 0);
+	ath10k_ce_src_ring_highmark_set(ar, ctrl_addr, nentries);
+
+	ath10k_dbg(ATH10K_DBG_BOOT,
+		   "boot init ce src ring id %d entries %d base_addr %p\n",
+		   ce_id, nentries, src_ring->base_addr_owner_space);
+
+	return 0;
+}
+
+static int ath10k_ce_init_dest_ring(struct ath10k *ar,
+				    unsigned int ce_id,
+				    const struct ce_attr *attr)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct ath10k_ce_pipe *ce_state = &ar_pci->ce_states[ce_id];
+	struct ath10k_ce_ring *dest_ring = ce_state->dest_ring;
+	u32 nentries, ctrl_addr = ath10k_ce_base_address(ce_id);
+
+	nentries = roundup_pow_of_two(attr->dest_nentries);
+
+	memset(dest_ring->per_transfer_context, 0,
+	       nentries * sizeof(*dest_ring->per_transfer_context));
+
+	dest_ring->sw_index = ath10k_ce_dest_ring_read_index_get(ar, ctrl_addr);
+	dest_ring->sw_index &= dest_ring->nentries_mask;
+	dest_ring->write_index =
+		ath10k_ce_dest_ring_write_index_get(ar, ctrl_addr);
+	dest_ring->write_index &= dest_ring->nentries_mask;
+
+	ath10k_ce_dest_ring_base_addr_set(ar, ctrl_addr,
+					  dest_ring->base_addr_ce_space);
+	ath10k_ce_dest_ring_size_set(ar, ctrl_addr, nentries);
+	ath10k_ce_dest_ring_byte_swap_set(ar, ctrl_addr, 0);
+	ath10k_ce_dest_ring_lowmark_set(ar, ctrl_addr, 0);
+	ath10k_ce_dest_ring_highmark_set(ar, ctrl_addr, nentries);
+
+	ath10k_dbg(ATH10K_DBG_BOOT,
+		   "boot ce dest ring id %d entries %d base_addr %p\n",
+		   ce_id, nentries, dest_ring->base_addr_owner_space);
+
+	return 0;
+}
+
+static struct ath10k_ce_ring *
+ath10k_ce_alloc_src_ring(struct ath10k *ar, unsigned int ce_id,
+			 const struct ce_attr *attr)
+{
+	struct ath10k_ce_ring *src_ring;
+	u32 nentries = attr->src_nentries;
+	dma_addr_t base_addr;
+
+	nentries = roundup_pow_of_two(nentries);
+
+	src_ring = kzalloc(sizeof(*src_ring) +
+			   (nentries *
+			    sizeof(*src_ring->per_transfer_context)),
+			   GFP_KERNEL);
+	if (src_ring == NULL)
+		return ERR_PTR(-ENOMEM);
+
+	src_ring->nentries = nentries;
+	src_ring->nentries_mask = nentries - 1;
 
 	/*
 	 * Legacy platforms that do not support cache
@@ -889,9 +939,8 @@ static int ath10k_ce_init_src_ring(struct ath10k *ar,
 				    CE_DESC_RING_ALIGN),
 				   &base_addr, GFP_KERNEL);
 	if (!src_ring->base_addr_owner_space_unaligned) {
-		kfree(ce_state->src_ring);
-		ce_state->src_ring = NULL;
-		return -ENOMEM;
+		kfree(src_ring);
+		return ERR_PTR(-ENOMEM);
 	}
 
 	src_ring->base_addr_ce_space_unaligned = base_addr;
@@ -916,69 +965,37 @@ static int ath10k_ce_init_src_ring(struct ath10k *ar,
 				   CE_DESC_RING_ALIGN),
 				  src_ring->base_addr_owner_space,
 				  src_ring->base_addr_ce_space);
-		kfree(ce_state->src_ring);
-		ce_state->src_ring = NULL;
-		return -ENOMEM;
+		kfree(src_ring);
+		return ERR_PTR(-ENOMEM);
 	}
 
 	src_ring->shadow_base = PTR_ALIGN(
 			src_ring->shadow_base_unaligned,
 			CE_DESC_RING_ALIGN);
 
-	ath10k_ce_src_ring_base_addr_set(ar, ctrl_addr,
-					 src_ring->base_addr_ce_space);
-	ath10k_ce_src_ring_size_set(ar, ctrl_addr, nentries);
-	ath10k_ce_src_ring_dmax_set(ar, ctrl_addr, attr->src_sz_max);
-	ath10k_ce_src_ring_byte_swap_set(ar, ctrl_addr, 0);
-	ath10k_ce_src_ring_lowmark_set(ar, ctrl_addr, 0);
-	ath10k_ce_src_ring_highmark_set(ar, ctrl_addr, nentries);
-
-	ath10k_dbg(ATH10K_DBG_BOOT,
-		   "boot ce src ring id %d entries %d base_addr %p\n",
-		   ce_id, nentries, src_ring->base_addr_owner_space);
-
-	return 0;
+	return src_ring;
 }
 
-static int ath10k_ce_init_dest_ring(struct ath10k *ar,
-				    unsigned int ce_id,
-				    struct ath10k_ce_pipe *ce_state,
-				    const struct ce_attr *attr)
+static struct ath10k_ce_ring *
+ath10k_ce_alloc_dest_ring(struct ath10k *ar, unsigned int ce_id,
+			  const struct ce_attr *attr)
 {
 	struct ath10k_ce_ring *dest_ring;
-	unsigned int nentries = attr->dest_nentries;
-	unsigned int ce_nbytes;
-	u32 ctrl_addr = ath10k_ce_base_address(ce_id);
+	u32 nentries;
 	dma_addr_t base_addr;
-	char *ptr;
 
-	nentries = roundup_pow_of_two(nentries);
+	nentries = roundup_pow_of_two(attr->dest_nentries);
 
-	if (ce_state->dest_ring) {
-		WARN_ON(ce_state->dest_ring->nentries != nentries);
-		return 0;
-	}
+	dest_ring = kzalloc(sizeof(*dest_ring) +
+			    (nentries *
+			     sizeof(*dest_ring->per_transfer_context)),
+			    GFP_KERNEL);
+	if (dest_ring == NULL)
+		return ERR_PTR(-ENOMEM);
 
-	ce_nbytes = sizeof(struct ath10k_ce_ring) + (nentries * sizeof(void *));
-	ptr = kzalloc(ce_nbytes, GFP_KERNEL);
-	if (ptr == NULL)
-		return -ENOMEM;
-
-	ce_state->dest_ring = (struct ath10k_ce_ring *)ptr;
-	dest_ring = ce_state->dest_ring;
-
-	ptr += sizeof(struct ath10k_ce_ring);
 	dest_ring->nentries = nentries;
 	dest_ring->nentries_mask = nentries - 1;
 
-	dest_ring->sw_index = ath10k_ce_dest_ring_read_index_get(ar, ctrl_addr);
-	dest_ring->sw_index &= dest_ring->nentries_mask;
-	dest_ring->write_index =
-		ath10k_ce_dest_ring_write_index_get(ar, ctrl_addr);
-	dest_ring->write_index &= dest_ring->nentries_mask;
-
-	dest_ring->per_transfer_context = (void **)ptr;
-
 	/*
 	 * Legacy platforms that do not support cache
 	 * coherent DMA are unsupported
@@ -989,9 +1006,8 @@ static int ath10k_ce_init_dest_ring(struct ath10k *ar,
 				    CE_DESC_RING_ALIGN),
 				   &base_addr, GFP_KERNEL);
 	if (!dest_ring->base_addr_owner_space_unaligned) {
-		kfree(ce_state->dest_ring);
-		ce_state->dest_ring = NULL;
-		return -ENOMEM;
+		kfree(dest_ring);
+		return ERR_PTR(-ENOMEM);
 	}
 
 	dest_ring->base_addr_ce_space_unaligned = base_addr;
@@ -1010,39 +1026,7 @@ static int ath10k_ce_init_dest_ring(struct ath10k *ar,
 			dest_ring->base_addr_ce_space_unaligned,
 			CE_DESC_RING_ALIGN);
 
-	ath10k_ce_dest_ring_base_addr_set(ar, ctrl_addr,
-					  dest_ring->base_addr_ce_space);
-	ath10k_ce_dest_ring_size_set(ar, ctrl_addr, nentries);
-	ath10k_ce_dest_ring_byte_swap_set(ar, ctrl_addr, 0);
-	ath10k_ce_dest_ring_lowmark_set(ar, ctrl_addr, 0);
-	ath10k_ce_dest_ring_highmark_set(ar, ctrl_addr, nentries);
-
-	ath10k_dbg(ATH10K_DBG_BOOT,
-		   "boot ce dest ring id %d entries %d base_addr %p\n",
-		   ce_id, nentries, dest_ring->base_addr_owner_space);
-
-	return 0;
-}
-
-static struct ath10k_ce_pipe *ath10k_ce_init_state(struct ath10k *ar,
-					     unsigned int ce_id,
-					     const struct ce_attr *attr)
-{
-	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
-	struct ath10k_ce_pipe *ce_state = &ar_pci->ce_states[ce_id];
-	u32 ctrl_addr = ath10k_ce_base_address(ce_id);
-
-	spin_lock_bh(&ar_pci->ce_lock);
-
-	ce_state->ar = ar;
-	ce_state->id = ce_id;
-	ce_state->ctrl_addr = ctrl_addr;
-	ce_state->attr_flags = attr->flags;
-	ce_state->src_sz_max = attr->src_sz_max;
-
-	spin_unlock_bh(&ar_pci->ce_lock);
-
-	return ce_state;
+	return dest_ring;
 }
 
 /*
@@ -1052,11 +1036,11 @@ static struct ath10k_ce_pipe *ath10k_ce_init_state(struct ath10k *ar,
  * initialization. It may be that only one side or the other is
  * initialized by software/firmware.
  */
-struct ath10k_ce_pipe *ath10k_ce_init(struct ath10k *ar,
-				unsigned int ce_id,
-				const struct ce_attr *attr)
+int ath10k_ce_init_pipe(struct ath10k *ar, unsigned int ce_id,
+			const struct ce_attr *attr)
 {
-	struct ath10k_ce_pipe *ce_state;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct ath10k_ce_pipe *ce_state = &ar_pci->ce_states[ce_id];
 	int ret;
 
 	/*
@@ -1072,44 +1056,109 @@ struct ath10k_ce_pipe *ath10k_ce_init(struct ath10k *ar,
 
 	ret = ath10k_pci_wake(ar);
 	if (ret)
-		return NULL;
+		return ret;
 
-	ce_state = ath10k_ce_init_state(ar, ce_id, attr);
-	if (!ce_state) {
-		ath10k_err("Failed to initialize CE state for ID: %d\n", ce_id);
-		goto out;
-	}
+	spin_lock_bh(&ar_pci->ce_lock);
+	ce_state->ar = ar;
+	ce_state->id = ce_id;
+	ce_state->ctrl_addr = ath10k_ce_base_address(ce_id);
+	ce_state->attr_flags = attr->flags;
+	ce_state->src_sz_max = attr->src_sz_max;
+	spin_unlock_bh(&ar_pci->ce_lock);
 
 	if (attr->src_nentries) {
-		ret = ath10k_ce_init_src_ring(ar, ce_id, ce_state, attr);
+		ret = ath10k_ce_init_src_ring(ar, ce_id, attr);
 		if (ret) {
 			ath10k_err("Failed to initialize CE src ring for ID: %d (%d)\n",
 				   ce_id, ret);
-			ath10k_ce_deinit(ce_state);
-			ce_state = NULL;
 			goto out;
 		}
 	}
 
 	if (attr->dest_nentries) {
-		ret = ath10k_ce_init_dest_ring(ar, ce_id, ce_state, attr);
+		ret = ath10k_ce_init_dest_ring(ar, ce_id, attr);
 		if (ret) {
 			ath10k_err("Failed to initialize CE dest ring for ID: %d (%d)\n",
 				   ce_id, ret);
-			ath10k_ce_deinit(ce_state);
-			ce_state = NULL;
 			goto out;
 		}
 	}
 
 out:
 	ath10k_pci_sleep(ar);
-	return ce_state;
+	return ret;
 }
 
-void ath10k_ce_deinit(struct ath10k_ce_pipe *ce_state)
+static void ath10k_ce_deinit_src_ring(struct ath10k *ar, unsigned int ce_id)
 {
-	struct ath10k *ar = ce_state->ar;
+	u32 ctrl_addr = ath10k_ce_base_address(ce_id);
+
+	ath10k_ce_src_ring_base_addr_set(ar, ctrl_addr, 0);
+	ath10k_ce_src_ring_size_set(ar, ctrl_addr, 0);
+	ath10k_ce_src_ring_dmax_set(ar, ctrl_addr, 0);
+	ath10k_ce_src_ring_highmark_set(ar, ctrl_addr, 0);
+}
+
+static void ath10k_ce_deinit_dest_ring(struct ath10k *ar, unsigned int ce_id)
+{
+	u32 ctrl_addr = ath10k_ce_base_address(ce_id);
+
+	ath10k_ce_dest_ring_base_addr_set(ar, ctrl_addr, 0);
+	ath10k_ce_dest_ring_size_set(ar, ctrl_addr, 0);
+	ath10k_ce_dest_ring_highmark_set(ar, ctrl_addr, 0);
+}
+
+void ath10k_ce_deinit_pipe(struct ath10k *ar, unsigned int ce_id)
+{
+	int ret;
+
+	ret = ath10k_pci_wake(ar);
+	if (ret)
+		return;
+
+	ath10k_ce_deinit_src_ring(ar, ce_id);
+	ath10k_ce_deinit_dest_ring(ar, ce_id);
+
+	ath10k_pci_sleep(ar);
+}
+
+int ath10k_ce_alloc_pipe(struct ath10k *ar, int ce_id,
+			 const struct ce_attr *attr)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct ath10k_ce_pipe *ce_state = &ar_pci->ce_states[ce_id];
+	int ret;
+
+	if (attr->src_nentries) {
+		ce_state->src_ring = ath10k_ce_alloc_src_ring(ar, ce_id, attr);
+		if (IS_ERR(ce_state->src_ring)) {
+			ret = PTR_ERR(ce_state->src_ring);
+			ath10k_err("failed to allocate copy engine source ring %d: %d\n",
+				   ce_id, ret);
+			ce_state->src_ring = NULL;
+			return ret;
+		}
+	}
+
+	if (attr->dest_nentries) {
+		ce_state->dest_ring = ath10k_ce_alloc_dest_ring(ar, ce_id,
+								attr);
+		if (IS_ERR(ce_state->dest_ring)) {
+			ret = PTR_ERR(ce_state->dest_ring);
+			ath10k_err("failed to allocate copy engine destination ring %d: %d\n",
+				   ce_id, ret);
+			ce_state->dest_ring = NULL;
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+void ath10k_ce_free_pipe(struct ath10k *ar, int ce_id)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct ath10k_ce_pipe *ce_state = &ar_pci->ce_states[ce_id];
 
 	if (ce_state->src_ring) {
 		kfree(ce_state->src_ring->shadow_base_unaligned);
diff --git a/drivers/net/wireless/ath/ath10k/ce.h b/drivers/net/wireless/ath/ath10k/ce.h
index 8eb7f99ed992..fd0bc3561e42 100644
--- a/drivers/net/wireless/ath/ath10k/ce.h
+++ b/drivers/net/wireless/ath/ath10k/ce.h
@@ -104,7 +104,8 @@ struct ath10k_ce_ring {
 	void *shadow_base_unaligned;
 	struct ce_desc *shadow_base;
 
-	void **per_transfer_context;
+	/* keep last */
+	void *per_transfer_context[0];
 };
 
 struct ath10k_ce_pipe {
@@ -210,10 +211,12 @@ int ath10k_ce_completed_send_next(struct ath10k_ce_pipe *ce_state,
 
 /*==================CE Engine Initialization=======================*/
 
-/* Initialize an instance of a CE */
-struct ath10k_ce_pipe *ath10k_ce_init(struct ath10k *ar,
-				unsigned int ce_id,
-				const struct ce_attr *attr);
+int ath10k_ce_init_pipe(struct ath10k *ar, unsigned int ce_id,
+			const struct ce_attr *attr);
+void ath10k_ce_deinit_pipe(struct ath10k *ar, unsigned int ce_id);
+int ath10k_ce_alloc_pipe(struct ath10k *ar, int ce_id,
+			  const struct ce_attr *attr);
+void ath10k_ce_free_pipe(struct ath10k *ar, int ce_id);
 
 /*==================CE Engine Shutdown=======================*/
 /*
@@ -236,8 +239,6 @@ int ath10k_ce_cancel_send_next(struct ath10k_ce_pipe *ce_state,
 			       unsigned int *nbytesp,
 			       unsigned int *transfer_idp);
 
-void ath10k_ce_deinit(struct ath10k_ce_pipe *ce_state);
-
 /*==================CE Interrupt Handlers====================*/
 void ath10k_ce_per_engine_service_any(struct ath10k *ar);
 void ath10k_ce_per_engine_service(struct ath10k *ar, unsigned int ce_id);
diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index 337af7e22b30..7995b0d23b1e 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -1258,18 +1258,10 @@ static void ath10k_pci_buffer_cleanup(struct ath10k *ar)
 
 static void ath10k_pci_ce_deinit(struct ath10k *ar)
 {
-	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
-	struct ath10k_pci_pipe *pipe_info;
-	int pipe_num;
+	int i;
 
-	for (pipe_num = 0; pipe_num < CE_COUNT; pipe_num++) {
-		pipe_info = &ar_pci->pipe_info[pipe_num];
-		if (pipe_info->ce_hdl) {
-			ath10k_ce_deinit(pipe_info->ce_hdl);
-			pipe_info->ce_hdl = NULL;
-			pipe_info->buf_sz = 0;
-		}
-	}
+	for (i = 0; i < CE_COUNT; i++)
+		ath10k_ce_deinit_pipe(ar, i);
 }
 
 static void ath10k_pci_hif_stop(struct ath10k *ar)
@@ -1722,30 +1714,49 @@ static int ath10k_pci_init_config(struct ath10k *ar)
 	return 0;
 }
 
+static int ath10k_pci_alloc_ce(struct ath10k *ar)
+{
+	int i, ret;
 
+	for (i = 0; i < CE_COUNT; i++) {
+		ret = ath10k_ce_alloc_pipe(ar, i, &host_ce_config_wlan[i]);
+		if (ret) {
+			ath10k_err("failed to allocate copy engine pipe %d: %d\n",
+				   i, ret);
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+static void ath10k_pci_free_ce(struct ath10k *ar)
+{
+	int i;
+
+	for (i = 0; i < CE_COUNT; i++)
+		ath10k_ce_free_pipe(ar, i);
+}
 
 static int ath10k_pci_ce_init(struct ath10k *ar)
 {
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
 	struct ath10k_pci_pipe *pipe_info;
 	const struct ce_attr *attr;
-	int pipe_num;
+	int pipe_num, ret;
 
 	for (pipe_num = 0; pipe_num < CE_COUNT; pipe_num++) {
 		pipe_info = &ar_pci->pipe_info[pipe_num];
+		pipe_info->ce_hdl = &ar_pci->ce_states[pipe_num];
 		pipe_info->pipe_num = pipe_num;
 		pipe_info->hif_ce_state = ar;
 		attr = &host_ce_config_wlan[pipe_num];
 
-		pipe_info->ce_hdl = ath10k_ce_init(ar, pipe_num, attr);
-		if (pipe_info->ce_hdl == NULL) {
-			ath10k_err("failed to initialize CE for pipe: %d\n",
-				   pipe_num);
-
-			/* It is safe to call it here. It checks if ce_hdl is
-			 * valid for each pipe */
-			ath10k_pci_ce_deinit(ar);
-			return -1;
+		ret = ath10k_ce_init_pipe(ar, pipe_num, attr);
+		if (ret) {
+			ath10k_err("failed to initialize copy engine pipe %d: %d\n",
+				   pipe_num, ret);
+			return ret;
 		}
 
 		if (pipe_num == CE_COUNT - 1) {
@@ -2648,16 +2659,24 @@ static int ath10k_pci_probe(struct pci_dev *pdev,
 
 	ath10k_do_pci_sleep(ar);
 
+	ret = ath10k_pci_alloc_ce(ar);
+	if (ret) {
+		ath10k_err("failed to allocate copy engine pipes: %d\n", ret);
+		goto err_iomap;
+	}
+
 	ath10k_dbg(ATH10K_DBG_BOOT, "boot pci_mem 0x%p\n", ar_pci->mem);
 
 	ret = ath10k_core_register(ar, chip_id);
 	if (ret) {
 		ath10k_err("failed to register driver core: %d\n", ret);
-		goto err_iomap;
+		goto err_free_ce;
 	}
 
 	return 0;
 
+err_free_ce:
+	ath10k_pci_free_ce(ar);
 err_iomap:
 	pci_iounmap(pdev, mem);
 err_master:
@@ -2693,6 +2712,7 @@ static void ath10k_pci_remove(struct pci_dev *pdev)
 	tasklet_kill(&ar_pci->msi_fw_err);
 
 	ath10k_core_unregister(ar);
+	ath10k_pci_free_ce(ar);
 
 	pci_iounmap(pdev, ar_pci->mem);
 	pci_release_region(pdev, BAR_NUM);

From df5e85250a80d7f4f9ade0e1b2347d56728756b4 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Fri, 28 Mar 2014 10:02:45 +0200
Subject: [PATCH 39/48] ath10k: deinit copy engine before resetting

Since copy engine allocation has been revised the
ath10k_pci_ce_deinit() now simply zeroes copy
engine registers. It's probably a good idea to do
that before reseting for a more graceful device
reset.

Before ath10k_pci_ce_deinit() freed copy engine
ringbuffer memory so it was required to call it
after resetting. Otherwise it was possible for
device to access unmapped/freed copy engine
ringbuffer memory.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index 7995b0d23b1e..bf1083d52e61 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -2032,9 +2032,9 @@ static void ath10k_pci_hif_power_down(struct ath10k *ar)
 	ath10k_pci_free_early_irq(ar);
 	ath10k_pci_kill_tasklet(ar);
 	ath10k_pci_deinit_irq(ar);
+	ath10k_pci_ce_deinit(ar);
 	ath10k_pci_warm_reset(ar);
 
-	ath10k_pci_ce_deinit(ar);
 	if (!test_bit(ATH10K_PCI_FEATURE_SOC_POWER_SAVE, ar_pci->features))
 		ath10k_do_pci_sleep(ar);
 }

From 34d714e0cf8d83aa0b7ead833c6ccd05f700115e Mon Sep 17 00:00:00 2001
From: Bartosz Markowski <bartosz.markowski@tieto.com>
Date: Fri, 28 Mar 2014 14:35:16 +0200
Subject: [PATCH 40/48] ath10k: update wal_dbg_tx_stats structure with missing
 parameter.

The filed has been missing (missmatched with FW ABI)
since 999.999.0.629 firmware release.

It's very imporatant to keep these structs up to date with FW,
due to the arithmetic we use while read the fw_stats.

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/wmi.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index e0421c271ad1..8b07cebdd6de 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -2710,6 +2710,9 @@ struct wal_dbg_tx_stats {
 	/* wal pdev resets  */
 	__le32 pdev_resets;
 
+	/* frames dropped due to non-availability of stateless TIDs */
+	__le32 stateless_tid_alloc_failure;
+
 	__le32 phy_underrun;
 
 	/* MPDU is more than txop limit */

From db9cdda6508d71099e5d3c5ad7f048bc715dac73 Mon Sep 17 00:00:00 2001
From: Ben Greear <greearb@candelatech.com>
Date: Fri, 28 Mar 2014 14:35:15 +0200
Subject: [PATCH 41/48] ath10k: fix getting stats from firmware

Tested on 10.x firmware, and others report it at least
makes older firmware no more broken than it already was.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/wmi.h | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index 8b07cebdd6de..65eb3439211f 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -2769,13 +2769,21 @@ enum wmi_stats_id {
 	WMI_REQUEST_AP_STAT	= 0x02
 };
 
+struct wlan_inst_rssi_args {
+	__le16 cfg_retry_count;
+	__le16 retry_count;
+};
+
 struct wmi_request_stats_cmd {
 	__le32 stats_id;
 
-	/*
-	 * Space to add parameters like
-	 * peer mac addr
-	 */
+	__le32 vdev_id;
+
+	/* peer MAC address */
+	struct wmi_mac_addr peer_macaddr;
+
+	/* Instantaneous RSSI arguments */
+	struct wlan_inst_rssi_args inst_rssi_args;
 } __packed;
 
 /* Suspend option */

From 23c3aae4a09241429a62a0c3fab3830a4c06490d Mon Sep 17 00:00:00 2001
From: Ben Greear <greearb@candelatech.com>
Date: Fri, 28 Mar 2014 14:35:15 +0200
Subject: [PATCH 42/48] ath10k: add the Rx rate in FW stats

FW stats does provide the Rx rate information. Add this.
Tested with firmware 10x firmware.

Increase buffer size so more peers can be shown.

Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com>
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.h  |  1 +
 drivers/net/wireless/ath/ath10k/debug.c | 22 ++++++++++++++++------
 drivers/net/wireless/ath/ath10k/wmi.h   |  9 ++++++++-
 3 files changed, 25 insertions(+), 7 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index ad209a61675a..05416508839b 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -119,6 +119,7 @@ struct ath10k_peer_stat {
 	u8 peer_macaddr[ETH_ALEN];
 	u32 peer_rssi;
 	u32 peer_tx_rate;
+	u32 peer_rx_rate; /* 10x only */
 };
 
 struct ath10k_target_stats {
diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c
index 2dc598c73089..7be284c899f4 100644
--- a/drivers/net/wireless/ath/ath10k/debug.c
+++ b/drivers/net/wireless/ath/ath10k/debug.c
@@ -243,13 +243,13 @@ void ath10k_debug_read_target_stats(struct ath10k *ar,
 	}
 
 	if (num_peer_stats) {
-		struct wmi_peer_stats *peer_stats;
+		struct wmi_peer_stats_10x *peer_stats;
 		struct ath10k_peer_stat *s;
 
 		stats->peers = num_peer_stats;
 
 		for (i = 0; i < num_peer_stats; i++) {
-			peer_stats = (struct wmi_peer_stats *)tmp;
+			peer_stats = (struct wmi_peer_stats_10x *)tmp;
 			s = &stats->peer_stat[i];
 
 			memcpy(s->peer_macaddr, &peer_stats->peer_macaddr.addr,
@@ -257,8 +257,15 @@ void ath10k_debug_read_target_stats(struct ath10k *ar,
 			s->peer_rssi = __le32_to_cpu(peer_stats->peer_rssi);
 			s->peer_tx_rate =
 				__le32_to_cpu(peer_stats->peer_tx_rate);
+			if (test_bit(ATH10K_FW_FEATURE_WMI_10X,
+				     ar->fw_features)) {
+				s->peer_rx_rate =
+					__le32_to_cpu(peer_stats->peer_rx_rate);
+				tmp += sizeof(struct wmi_peer_stats_10x);
 
-			tmp += sizeof(struct wmi_peer_stats);
+			} else {
+				tmp += sizeof(struct wmi_peer_stats_old);
+			}
 		}
 	}
 
@@ -272,7 +279,7 @@ static ssize_t ath10k_read_fw_stats(struct file *file, char __user *user_buf,
 	struct ath10k *ar = file->private_data;
 	struct ath10k_target_stats *fw_stats;
 	char *buf = NULL;
-	unsigned int len = 0, buf_len = 2500;
+	unsigned int len = 0, buf_len = 8000;
 	ssize_t ret_cnt = 0;
 	long left;
 	int i;
@@ -411,8 +418,8 @@ static ssize_t ath10k_read_fw_stats(struct file *file, char __user *user_buf,
 			 "MPDU errors (FCS, MIC, ENC)", fw_stats->mpdu_errs);
 
 	len += scnprintf(buf + len, buf_len - len, "\n");
-	len += scnprintf(buf + len, buf_len - len, "%30s\n",
-			 "ath10k PEER stats");
+	len += scnprintf(buf + len, buf_len - len, "%30s (%d)\n",
+			 "ath10k PEER stats", fw_stats->peers);
 	len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
 				 "=================");
 
@@ -425,6 +432,9 @@ static ssize_t ath10k_read_fw_stats(struct file *file, char __user *user_buf,
 		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 				 "Peer TX rate",
 				 fw_stats->peer_stat[i].peer_tx_rate);
+		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
+				 "Peer RX rate",
+				 fw_stats->peer_stat[i].peer_rx_rate);
 		len += scnprintf(buf + len, buf_len - len, "\n");
 	}
 	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 65eb3439211f..02a70e320d8f 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -2857,12 +2857,19 @@ struct wmi_vdev_stats {
  * peer statistics.
  * TODO: add more stats
  */
-struct wmi_peer_stats {
+struct wmi_peer_stats_old {
 	struct wmi_mac_addr peer_macaddr;
 	__le32 peer_rssi;
 	__le32 peer_tx_rate;
 } __packed;
 
+struct wmi_peer_stats_10x {
+	struct wmi_mac_addr peer_macaddr;
+	__le32 peer_rssi;
+	__le32 peer_tx_rate;
+	__le32 peer_rx_rate;
+} __packed;
+
 struct wmi_vdev_create_cmd {
 	__le32 vdev_id;
 	__le32 vdev_type;

From 52e346d1e70c0cced4ef1a3f4c9d11f3b6949e53 Mon Sep 17 00:00:00 2001
From: Chun-Yeow Yeoh <yeohchunyeow@gmail.com>
Date: Fri, 28 Mar 2014 14:35:16 +0200
Subject: [PATCH 43/48] ath10k: add extra pdev stats on 10.1 firmware

As pointed out by Michal Kazior, add extra pdev stats
for 10.1 firmware.

Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.h  |  6 ++++++
 drivers/net/wireless/ath/ath10k/debug.c | 27 ++++++++++++++++++++++---
 drivers/net/wireless/ath/ath10k/wmi.h   | 19 ++++++++++++++++-
 3 files changed, 48 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index 05416508839b..8edd6da3c8e7 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -131,6 +131,12 @@ struct ath10k_target_stats {
 	u32 cycle_count;
 	u32 phy_err_count;
 	u32 chan_tx_power;
+	u32 ack_rx_bad;
+	u32 rts_bad;
+	u32 rts_good;
+	u32 fcs_bad;
+	u32 no_beacons;
+	u32 mib_int_count;
 
 	/* PDEV TX stats */
 	s32 comp_queued;
diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c
index 7be284c899f4..1b7ff4ba122c 100644
--- a/drivers/net/wireless/ath/ath10k/debug.c
+++ b/drivers/net/wireless/ath/ath10k/debug.c
@@ -161,7 +161,7 @@ void ath10k_debug_read_target_stats(struct ath10k *ar,
 	u8 *tmp = ev->data;
 	struct ath10k_target_stats *stats;
 	int num_pdev_stats, num_vdev_stats, num_peer_stats;
-	struct wmi_pdev_stats *ps;
+	struct wmi_pdev_stats_10x *ps;
 	int i;
 
 	spin_lock_bh(&ar->data_lock);
@@ -173,7 +173,7 @@ void ath10k_debug_read_target_stats(struct ath10k *ar,
 	num_peer_stats = __le32_to_cpu(ev->num_peer_stats); /* 0 or max peers */
 
 	if (num_pdev_stats) {
-		ps = (struct wmi_pdev_stats *)tmp;
+		ps = (struct wmi_pdev_stats_10x *)tmp;
 
 		stats->ch_noise_floor = __le32_to_cpu(ps->chan_nf);
 		stats->tx_frame_count = __le32_to_cpu(ps->tx_frame_count);
@@ -228,7 +228,18 @@ void ath10k_debug_read_target_stats(struct ath10k *ar,
 		stats->phy_err_drop = __le32_to_cpu(ps->wal.rx.phy_err_drop);
 		stats->mpdu_errs = __le32_to_cpu(ps->wal.rx.mpdu_errs);
 
-		tmp += sizeof(struct wmi_pdev_stats);
+		if (test_bit(ATH10K_FW_FEATURE_WMI_10X,
+			     ar->fw_features)) {
+			stats->ack_rx_bad = __le32_to_cpu(ps->ack_rx_bad);
+			stats->rts_bad = __le32_to_cpu(ps->rts_bad);
+			stats->rts_good = __le32_to_cpu(ps->rts_good);
+			stats->fcs_bad = __le32_to_cpu(ps->fcs_bad);
+			stats->no_beacons = __le32_to_cpu(ps->no_beacons);
+			stats->mib_int_count = __le32_to_cpu(ps->mib_int_count);
+			tmp += sizeof(struct wmi_pdev_stats_10x);
+		} else {
+			tmp += sizeof(struct wmi_pdev_stats_old);
+		}
 	}
 
 	/* 0 or max vdevs */
@@ -327,6 +338,16 @@ static ssize_t ath10k_read_fw_stats(struct file *file, char __user *user_buf,
 			 "Cycle count", fw_stats->cycle_count);
 	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 			 "PHY error count", fw_stats->phy_err_count);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
+			 "RTS bad count", fw_stats->rts_bad);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
+			 "RTS good count", fw_stats->rts_good);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
+			 "FCS bad count", fw_stats->fcs_bad);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
+			 "No beacon count", fw_stats->no_beacons);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
+			 "MIB int count", fw_stats->mib_int_count);
 
 	len += scnprintf(buf + len, buf_len - len, "\n");
 	len += scnprintf(buf + len, buf_len - len, "%30s\n",
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index 02a70e320d8f..ae838221af65 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -2834,7 +2834,7 @@ struct wmi_stats_event {
  * PDEV statistics
  * TODO: add all PDEV stats here
  */
-struct wmi_pdev_stats {
+struct wmi_pdev_stats_old {
 	__le32 chan_nf;        /* Channel noise floor */
 	__le32 tx_frame_count; /* TX frame count */
 	__le32 rx_frame_count; /* RX frame count */
@@ -2845,6 +2845,23 @@ struct wmi_pdev_stats {
 	struct wal_dbg_stats wal; /* WAL dbg stats */
 } __packed;
 
+struct wmi_pdev_stats_10x {
+	__le32 chan_nf;        /* Channel noise floor */
+	__le32 tx_frame_count; /* TX frame count */
+	__le32 rx_frame_count; /* RX frame count */
+	__le32 rx_clear_count; /* rx clear count */
+	__le32 cycle_count;    /* cycle count */
+	__le32 phy_err_count;  /* Phy error count */
+	__le32 chan_tx_pwr;    /* channel tx power */
+	struct wal_dbg_stats wal; /* WAL dbg stats */
+	__le32 ack_rx_bad;
+	__le32 rts_bad;
+	__le32 rts_good;
+	__le32 fcs_bad;
+	__le32 no_beacons;
+	__le32 mib_int_count;
+} __packed;
+
 /*
  * VDEV statistics
  * TODO: add all VDEV stats here

From 7a8a396be406aa51124e8baae827406ae3bc59ed Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Fri, 28 Mar 2014 14:35:16 +0200
Subject: [PATCH 44/48] ath10k: cleanup debug messages in
 ath10k_wmi_event_host_swba()

They were just too superfluous and made it harder to read logs. Change them to
follow the normal style used in ath10k.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/wmi.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index d4b48ef0ec2e..fe4d5f1c672f 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -1362,13 +1362,10 @@ static void ath10k_wmi_event_host_swba(struct ath10k *ar, struct sk_buff *skb)
 	struct sk_buff *bcn;
 	int ret, vdev_id = 0;
 
-	ath10k_dbg(ATH10K_DBG_MGMT, "WMI_HOST_SWBA_EVENTID\n");
-
 	ev = (struct wmi_host_swba_event *)skb->data;
 	map = __le32_to_cpu(ev->vdev_map);
 
-	ath10k_dbg(ATH10K_DBG_MGMT, "host swba:\n"
-		   "-vdev map 0x%x\n",
+	ath10k_dbg(ATH10K_DBG_MGMT, "mgmt swba vdev_map 0x%x\n",
 		   ev->vdev_map);
 
 	for (; map; map >>= 1, vdev_id++) {
@@ -1385,12 +1382,7 @@ static void ath10k_wmi_event_host_swba(struct ath10k *ar, struct sk_buff *skb)
 		bcn_info = &ev->bcn_info[i];
 
 		ath10k_dbg(ATH10K_DBG_MGMT,
-			   "-bcn_info[%d]:\n"
-			   "--tim_len %d\n"
-			   "--tim_mcast %d\n"
-			   "--tim_changed %d\n"
-			   "--tim_num_ps_pending %d\n"
-			   "--tim_bitmap 0x%08x%08x%08x%08x\n",
+			   "mgmt event bcn_info %d tim_len %d mcast %d changed %d num_ps_pending %d bitmap 0x%08x%08x%08x%08x\n",
 			   i,
 			   __le32_to_cpu(bcn_info->tim_info.tim_len),
 			   __le32_to_cpu(bcn_info->tim_info.tim_mcast),

From 1bbc09752d3fdbfc2f768da60f7c67f128e5bc1f Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Tue, 8 Apr 2014 09:45:47 +0300
Subject: [PATCH 45/48] ath10k: refactor monitor code

It was possible to create/delete/start/stop
monitor vdev from a few places that were not
exclusively protected against each other. This
resulted in monitor vdev being stopped/removed by
one call origin while another one was expecting it
to continue running.

For example if CAC was started and interface's
promiscuous mode was toggled monitor vdev was
removed from the driver meaning no radar would be
detected. In additional a warning would be printed
upon CAC completion complaining it tried to stop
non-running monitor vdev.

The patch simplifies monitor code by removing
IEEE80211_HW_WANT_MONITOR_VIF (which wasn't really
ever needed) and improves state tracking. It also
unifies prints.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.h   |   5 +-
 drivers/net/wireless/ath/ath10k/htt_rx.c |   2 +-
 drivers/net/wireless/ath/ath10k/mac.c    | 226 +++++++++++++----------
 3 files changed, 135 insertions(+), 98 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index 8edd6da3c8e7..33029767a412 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -428,9 +428,10 @@ struct ath10k {
 	struct cfg80211_chan_def chandef;
 
 	int free_vdev_map;
+	bool promisc;
+	bool monitor;
 	int monitor_vdev_id;
-	bool monitor_enabled;
-	bool monitor_present;
+	bool monitor_started;
 	unsigned int filter_flags;
 	unsigned long dev_flags;
 	u32 dfs_block_radar_events;
diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index f7ecc108ef80..f85a3cf6da31 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -1120,7 +1120,7 @@ static bool ath10k_htt_rx_amsdu_allowed(struct ath10k_htt *htt,
 	if (status != HTT_RX_IND_MPDU_STATUS_OK &&
 	    status != HTT_RX_IND_MPDU_STATUS_TKIP_MIC_ERR &&
 	    status != HTT_RX_IND_MPDU_STATUS_ERR_INV_PEER &&
-	    !htt->ar->monitor_enabled) {
+	    !htt->ar->monitor_started) {
 		ath10k_dbg(ATH10K_DBG_HTT,
 			   "htt rx ignoring frame w/ status %d\n",
 			   status);
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 58ec5a7dfb34..d3607caee1da 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -574,7 +574,20 @@ static int ath10k_vdev_stop(struct ath10k_vif *arvif)
 	return ret;
 }
 
-static int ath10k_monitor_start(struct ath10k *ar, int vdev_id)
+static bool ath10k_monitor_is_enabled(struct ath10k *ar)
+{
+	lockdep_assert_held(&ar->conf_mutex);
+
+	ath10k_dbg(ATH10K_DBG_MAC,
+		   "mac monitor refs: promisc %d monitor %d cac %d\n",
+		   ar->promisc, ar->monitor,
+		   test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags));
+
+	return ar->promisc || ar->monitor ||
+	       test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
+}
+
+static int ath10k_monitor_vdev_start(struct ath10k *ar, int vdev_id)
 {
 	struct cfg80211_chan_def *chandef = &ar->chandef;
 	struct ieee80211_channel *channel = chandef->chan;
@@ -583,11 +596,6 @@ static int ath10k_monitor_start(struct ath10k *ar, int vdev_id)
 
 	lockdep_assert_held(&ar->conf_mutex);
 
-	if (!ar->monitor_present) {
-		ath10k_warn("mac monitor stop -- monitor is not present\n");
-		return -EINVAL;
-	}
-
 	arg.vdev_id = vdev_id;
 	arg.channel.freq = channel->center_freq;
 	arg.channel.band_center_freq1 = chandef->center_freq1;
@@ -605,14 +613,14 @@ static int ath10k_monitor_start(struct ath10k *ar, int vdev_id)
 
 	ret = ath10k_wmi_vdev_start(ar, &arg);
 	if (ret) {
-		ath10k_warn("failed to start Monitor vdev %i: %d\n",
+		ath10k_warn("failed to request monitor vdev %i start: %d\n",
 			    vdev_id, ret);
 		return ret;
 	}
 
 	ret = ath10k_vdev_setup_sync(ar);
 	if (ret) {
-		ath10k_warn("failed to syncronise setup for monitor vdev %i: %d\n",
+		ath10k_warn("failed to synchronize setup for monitor vdev %i: %d\n",
 			    vdev_id, ret);
 		return ret;
 	}
@@ -625,8 +633,9 @@ static int ath10k_monitor_start(struct ath10k *ar, int vdev_id)
 	}
 
 	ar->monitor_vdev_id = vdev_id;
-	ar->monitor_enabled = true;
 
+	ath10k_dbg(ATH10K_DBG_MAC, "mac monitor vdev %i started\n",
+		   ar->monitor_vdev_id);
 	return 0;
 
 vdev_stop:
@@ -638,22 +647,12 @@ static int ath10k_monitor_start(struct ath10k *ar, int vdev_id)
 	return ret;
 }
 
-static int ath10k_monitor_stop(struct ath10k *ar)
+static int ath10k_monitor_vdev_stop(struct ath10k *ar)
 {
 	int ret = 0;
 
 	lockdep_assert_held(&ar->conf_mutex);
 
-	if (!ar->monitor_present) {
-		ath10k_warn("mac monitor stop -- monitor is not present\n");
-		return -EINVAL;
-	}
-
-	if (!ar->monitor_enabled) {
-		ath10k_warn("mac monitor stop -- monitor is not enabled\n");
-		return -EINVAL;
-	}
-
 	ret = ath10k_wmi_vdev_down(ar, ar->monitor_vdev_id);
 	if (ret)
 		ath10k_warn("failed to put down monitor vdev %i: %d\n",
@@ -661,7 +660,7 @@ static int ath10k_monitor_stop(struct ath10k *ar)
 
 	ret = ath10k_wmi_vdev_stop(ar, ar->monitor_vdev_id);
 	if (ret)
-		ath10k_warn("failed to stop monitor vdev %i: %d\n",
+		ath10k_warn("failed to to request monitor vdev %i stop: %d\n",
 			    ar->monitor_vdev_id, ret);
 
 	ret = ath10k_vdev_setup_sync(ar);
@@ -669,24 +668,20 @@ static int ath10k_monitor_stop(struct ath10k *ar)
 		ath10k_warn("failed to synchronise monitor vdev %i: %d\n",
 			    ar->monitor_vdev_id, ret);
 
-	ar->monitor_enabled = false;
+	ath10k_dbg(ATH10K_DBG_MAC, "mac monitor vdev %i stopped\n",
+		   ar->monitor_vdev_id);
 	return ret;
 }
 
-static int ath10k_monitor_create(struct ath10k *ar)
+static int ath10k_monitor_vdev_create(struct ath10k *ar)
 {
 	int bit, ret = 0;
 
 	lockdep_assert_held(&ar->conf_mutex);
 
-	if (ar->monitor_present) {
-		ath10k_warn("monitor mode already enabled\n");
-		return 0;
-	}
-
 	bit = ffs(ar->free_vdev_map);
 	if (bit == 0) {
-		ath10k_warn("no free vdev slots\n");
+		ath10k_warn("failed to find free vdev id for monitor vdev\n");
 		return -ENOMEM;
 	}
 
@@ -697,7 +692,7 @@ static int ath10k_monitor_create(struct ath10k *ar)
 				     WMI_VDEV_TYPE_MONITOR,
 				     0, ar->mac_addr);
 	if (ret) {
-		ath10k_warn("failed to create WMI monitor vdev %i: %d\n",
+		ath10k_warn("failed to request monitor vdev %i creation: %d\n",
 			    ar->monitor_vdev_id, ret);
 		goto vdev_fail;
 	}
@@ -705,7 +700,6 @@ static int ath10k_monitor_create(struct ath10k *ar)
 	ath10k_dbg(ATH10K_DBG_MAC, "mac monitor vdev %d created\n",
 		   ar->monitor_vdev_id);
 
-	ar->monitor_present = true;
 	return 0;
 
 vdev_fail:
@@ -716,30 +710,91 @@ static int ath10k_monitor_create(struct ath10k *ar)
 	return ret;
 }
 
-static int ath10k_monitor_destroy(struct ath10k *ar)
+static int ath10k_monitor_vdev_delete(struct ath10k *ar)
 {
 	int ret = 0;
 
 	lockdep_assert_held(&ar->conf_mutex);
 
-	if (!ar->monitor_present)
-		return 0;
-
 	ret = ath10k_wmi_vdev_delete(ar, ar->monitor_vdev_id);
 	if (ret) {
-		ath10k_warn("failed to delete WMI vdev %i: %d\n",
+		ath10k_warn("failed to request wmi monitor vdev %i removal: %d\n",
 			    ar->monitor_vdev_id, ret);
 		return ret;
 	}
 
 	ar->free_vdev_map |= 1 << (ar->monitor_vdev_id);
-	ar->monitor_present = false;
 
 	ath10k_dbg(ATH10K_DBG_MAC, "mac monitor vdev %d deleted\n",
 		   ar->monitor_vdev_id);
 	return ret;
 }
 
+static int ath10k_monitor_start(struct ath10k *ar)
+{
+	int ret;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	if (!ath10k_monitor_is_enabled(ar)) {
+		ath10k_warn("trying to start monitor with no references\n");
+		return 0;
+	}
+
+	if (ar->monitor_started) {
+		ath10k_dbg(ATH10K_DBG_MAC, "mac monitor already started\n");
+		return 0;
+	}
+
+	ret = ath10k_monitor_vdev_create(ar);
+	if (ret) {
+		ath10k_warn("failed to create monitor vdev: %d\n", ret);
+		return ret;
+	}
+
+	ret = ath10k_monitor_vdev_start(ar, ar->monitor_vdev_id);
+	if (ret) {
+		ath10k_warn("failed to start monitor vdev: %d\n", ret);
+		ath10k_monitor_vdev_delete(ar);
+		return ret;
+	}
+
+	ar->monitor_started = true;
+	ath10k_dbg(ATH10K_DBG_MAC, "mac monitor started\n");
+
+	return 0;
+}
+
+static void ath10k_monitor_stop(struct ath10k *ar)
+{
+	int ret;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	if (ath10k_monitor_is_enabled(ar)) {
+		ath10k_dbg(ATH10K_DBG_MAC,
+			   "mac monitor will be stopped later\n");
+		return;
+	}
+
+	if (!ar->monitor_started) {
+		ath10k_dbg(ATH10K_DBG_MAC,
+			   "mac monitor probably failed to start earlier\n");
+		return;
+	}
+
+	ret = ath10k_monitor_vdev_stop(ar);
+	if (ret)
+		ath10k_warn("failed to stop monitor vdev: %d\n", ret);
+
+	ret = ath10k_monitor_vdev_delete(ar);
+	if (ret)
+		ath10k_warn("failed to delete monitor vdev: %d\n", ret);
+
+	ar->monitor_started = false;
+	ath10k_dbg(ATH10K_DBG_MAC, "mac monitor stopped\n");
+}
+
 static int ath10k_recalc_rtscts_prot(struct ath10k_vif *arvif)
 {
 	struct ath10k *ar = arvif->ar;
@@ -768,19 +823,13 @@ static int ath10k_start_cac(struct ath10k *ar)
 
 	set_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
 
-	ret = ath10k_monitor_create(ar);
+	ret = ath10k_monitor_start(ar);
 	if (ret) {
+		ath10k_warn("failed to start monitor (cac): %d\n", ret);
 		clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
 		return ret;
 	}
 
-	ret = ath10k_monitor_start(ar, ar->monitor_vdev_id);
-	if (ret) {
-		clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
-		ath10k_monitor_destroy(ar);
-		return ret;
-	}
-
 	ath10k_dbg(ATH10K_DBG_MAC, "mac cac start monitor vdev %d\n",
 		   ar->monitor_vdev_id);
 
@@ -795,9 +844,8 @@ static int ath10k_stop_cac(struct ath10k *ar)
 	if (!test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags))
 		return 0;
 
-	ath10k_monitor_stop(ar);
-	ath10k_monitor_destroy(ar);
 	clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
+	ath10k_monitor_stop(ar);
 
 	ath10k_dbg(ATH10K_DBG_MAC, "mac cac finished\n");
 
@@ -1828,7 +1876,7 @@ static u8 ath10k_tx_h_get_vdev_id(struct ath10k *ar,
 	if (info->control.vif)
 		return ath10k_vif_to_arvif(info->control.vif)->vdev_id;
 
-	if (ar->monitor_enabled)
+	if (ar->monitor_started)
 		return ar->monitor_vdev_id;
 
 	ath10k_warn("failed to resolve vdev id\n");
@@ -2266,7 +2314,13 @@ void ath10k_halt(struct ath10k *ar)
 {
 	lockdep_assert_held(&ar->conf_mutex);
 
-	ath10k_stop_cac(ar);
+	if (ath10k_monitor_is_enabled(ar)) {
+		clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
+		ar->promisc = false;
+		ar->monitor = false;
+		ath10k_monitor_stop(ar);
+	}
+
 	del_timer_sync(&ar->scan.timeout);
 	ath10k_offchan_tx_purge(ar);
 	ath10k_mgmt_over_wmi_tx_purge(ar);
@@ -2413,7 +2467,6 @@ static const char *chandef_get_width(enum nl80211_chan_width width)
 static void ath10k_config_chan(struct ath10k *ar)
 {
 	struct ath10k_vif *arvif;
-	bool monitor_was_enabled;
 	int ret;
 
 	lockdep_assert_held(&ar->conf_mutex);
@@ -2427,10 +2480,8 @@ static void ath10k_config_chan(struct ath10k *ar)
 
 	/* First stop monitor interface. Some FW versions crash if there's a
 	 * lone monitor interface. */
-	monitor_was_enabled = ar->monitor_enabled;
-
-	if (ar->monitor_enabled)
-		ath10k_monitor_stop(ar);
+	if (ar->monitor_started)
+		ath10k_monitor_vdev_stop(ar);
 
 	list_for_each_entry(arvif, &ar->arvifs, list) {
 		if (!arvif->is_started)
@@ -2475,8 +2526,8 @@ static void ath10k_config_chan(struct ath10k *ar)
 		}
 	}
 
-	if (monitor_was_enabled)
-		ath10k_monitor_start(ar, ar->monitor_vdev_id);
+	if (ath10k_monitor_is_enabled(ar))
+		ath10k_monitor_vdev_start(ar, ar->monitor_vdev_id);
 }
 
 static int ath10k_config(struct ieee80211_hw *hw, u32 changed)
@@ -2529,10 +2580,19 @@ static int ath10k_config(struct ieee80211_hw *hw, u32 changed)
 		ath10k_config_ps(ar);
 
 	if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
-		if (conf->flags & IEEE80211_CONF_MONITOR)
-			ret = ath10k_monitor_create(ar);
-		else
-			ret = ath10k_monitor_destroy(ar);
+		if (conf->flags & IEEE80211_CONF_MONITOR && !ar->monitor) {
+			ar->monitor = true;
+			ret = ath10k_monitor_start(ar);
+			if (ret) {
+				ath10k_warn("failed to start monitor (config): %d\n",
+					    ret);
+				ar->monitor = false;
+			}
+		} else if (!(conf->flags & IEEE80211_CONF_MONITOR) &&
+			   ar->monitor) {
+			ar->monitor = false;
+			ath10k_monitor_stop(ar);
+		}
 	}
 
 	mutex_unlock(&ar->conf_mutex);
@@ -2567,12 +2627,6 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
 	INIT_WORK(&arvif->wep_key_work, ath10k_tx_wep_key_work);
 	INIT_LIST_HEAD(&arvif->list);
 
-	if ((vif->type == NL80211_IFTYPE_MONITOR) && ar->monitor_present) {
-		ath10k_warn("only one monitor interface allowed\n");
-		ret = -EBUSY;
-		goto err;
-	}
-
 	bit = ffs(ar->free_vdev_map);
 	if (bit == 0) {
 		ret = -EBUSY;
@@ -2704,9 +2758,6 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
 		goto err_peer_delete;
 	}
 
-	if (arvif->vdev_type == WMI_VDEV_TYPE_MONITOR)
-		ar->monitor_present = true;
-
 	mutex_unlock(&ar->conf_mutex);
 	return 0;
 
@@ -2763,9 +2814,6 @@ static void ath10k_remove_interface(struct ieee80211_hw *hw,
 		ath10k_warn("failed to delete WMI vdev %i: %d\n",
 			    arvif->vdev_id, ret);
 
-	if (arvif->vdev_type == WMI_VDEV_TYPE_MONITOR)
-		ar->monitor_present = false;
-
 	ath10k_peer_cleanup(ar, arvif->vdev_id);
 
 	mutex_unlock(&ar->conf_mutex);
@@ -2798,28 +2846,17 @@ static void ath10k_configure_filter(struct ieee80211_hw *hw,
 	*total_flags &= SUPPORTED_FILTERS;
 	ar->filter_flags = *total_flags;
 
-	/* Monitor must not be started if it wasn't created first.
-	 * Promiscuous mode may be started on a non-monitor interface - in
-	 * such case the monitor vdev is not created so starting the
-	 * monitor makes no sense. Since ath10k uses no special RX filters
-	 * (only BSS filter in STA mode) there's no need for any special
-	 * action here. */
-	if ((ar->filter_flags & FIF_PROMISC_IN_BSS) &&
-	    !ar->monitor_enabled && ar->monitor_present) {
-		ath10k_dbg(ATH10K_DBG_MAC, "mac monitor %d start\n",
-			   ar->monitor_vdev_id);
-
-		ret = ath10k_monitor_start(ar, ar->monitor_vdev_id);
-		if (ret)
-			ath10k_warn("failed to start monitor mode: %d\n", ret);
-	} else if (!(ar->filter_flags & FIF_PROMISC_IN_BSS) &&
-		   ar->monitor_enabled && ar->monitor_present) {
-		ath10k_dbg(ATH10K_DBG_MAC, "mac monitor %d stop\n",
-			   ar->monitor_vdev_id);
-
-		ret = ath10k_monitor_stop(ar);
-		if (ret)
-			ath10k_warn("failed to stop monitor mode: %d\n", ret);
+	if (ar->filter_flags & FIF_PROMISC_IN_BSS && !ar->promisc) {
+		ar->promisc = true;
+		ret = ath10k_monitor_start(ar);
+		if (ret) {
+			ath10k_warn("failed to start monitor (promisc): %d\n",
+				    ret);
+			ar->promisc = false;
+		}
+	} else if (!(ar->filter_flags & FIF_PROMISC_IN_BSS) && ar->promisc) {
+		ar->promisc = false;
+		ath10k_monitor_stop(ar);
 	}
 
 	mutex_unlock(&ar->conf_mutex);
@@ -4579,7 +4616,6 @@ int ath10k_mac_register(struct ath10k *ar)
 			IEEE80211_HW_REPORTS_TX_ACK_STATUS |
 			IEEE80211_HW_HAS_RATE_CONTROL |
 			IEEE80211_HW_SUPPORTS_STATIC_SMPS |
-			IEEE80211_HW_WANT_MONITOR_VIF |
 			IEEE80211_HW_AP_LINK_PS |
 			IEEE80211_HW_SPECTRUM_MGMT;
 

From 72654fa7b52861ec91579e4801412fe2d6ba23a1 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Tue, 8 Apr 2014 09:56:09 +0300
Subject: [PATCH 46/48] ath10k: reorder functions

This is done to avoid forward declarations with
upcomming patches.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/mac.c | 170 +++++++++++++-------------
 1 file changed, 85 insertions(+), 85 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index d3607caee1da..7a56caca4fc0 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -489,91 +489,6 @@ static inline int ath10k_vdev_setup_sync(struct ath10k *ar)
 	return 0;
 }
 
-static int ath10k_vdev_start(struct ath10k_vif *arvif)
-{
-	struct ath10k *ar = arvif->ar;
-	struct cfg80211_chan_def *chandef = &ar->chandef;
-	struct wmi_vdev_start_request_arg arg = {};
-	int ret = 0;
-
-	lockdep_assert_held(&ar->conf_mutex);
-
-	reinit_completion(&ar->vdev_setup_done);
-
-	arg.vdev_id = arvif->vdev_id;
-	arg.dtim_period = arvif->dtim_period;
-	arg.bcn_intval = arvif->beacon_interval;
-
-	arg.channel.freq = chandef->chan->center_freq;
-	arg.channel.band_center_freq1 = chandef->center_freq1;
-	arg.channel.mode = chan_to_phymode(chandef);
-
-	arg.channel.min_power = 0;
-	arg.channel.max_power = chandef->chan->max_power * 2;
-	arg.channel.max_reg_power = chandef->chan->max_reg_power * 2;
-	arg.channel.max_antenna_gain = chandef->chan->max_antenna_gain * 2;
-
-	if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
-		arg.ssid = arvif->u.ap.ssid;
-		arg.ssid_len = arvif->u.ap.ssid_len;
-		arg.hidden_ssid = arvif->u.ap.hidden_ssid;
-
-		/* For now allow DFS for AP mode */
-		arg.channel.chan_radar =
-			!!(chandef->chan->flags & IEEE80211_CHAN_RADAR);
-	} else if (arvif->vdev_type == WMI_VDEV_TYPE_IBSS) {
-		arg.ssid = arvif->vif->bss_conf.ssid;
-		arg.ssid_len = arvif->vif->bss_conf.ssid_len;
-	}
-
-	ath10k_dbg(ATH10K_DBG_MAC,
-		   "mac vdev %d start center_freq %d phymode %s\n",
-		   arg.vdev_id, arg.channel.freq,
-		   ath10k_wmi_phymode_str(arg.channel.mode));
-
-	ret = ath10k_wmi_vdev_start(ar, &arg);
-	if (ret) {
-		ath10k_warn("failed to start WMI vdev %i: %d\n",
-			    arg.vdev_id, ret);
-		return ret;
-	}
-
-	ret = ath10k_vdev_setup_sync(ar);
-	if (ret) {
-		ath10k_warn("failed to synchronise setup for vdev %i: %d\n",
-			    arg.vdev_id, ret);
-		return ret;
-	}
-
-	return ret;
-}
-
-static int ath10k_vdev_stop(struct ath10k_vif *arvif)
-{
-	struct ath10k *ar = arvif->ar;
-	int ret;
-
-	lockdep_assert_held(&ar->conf_mutex);
-
-	reinit_completion(&ar->vdev_setup_done);
-
-	ret = ath10k_wmi_vdev_stop(ar, arvif->vdev_id);
-	if (ret) {
-		ath10k_warn("failed to stop WMI vdev %i: %d\n",
-			    arvif->vdev_id, ret);
-		return ret;
-	}
-
-	ret = ath10k_vdev_setup_sync(ar);
-	if (ret) {
-		ath10k_warn("failed to syncronise setup for vdev %i: %d\n",
-			    arvif->vdev_id, ret);
-		return ret;
-	}
-
-	return ret;
-}
-
 static bool ath10k_monitor_is_enabled(struct ath10k *ar)
 {
 	lockdep_assert_held(&ar->conf_mutex);
@@ -909,6 +824,91 @@ static void ath10k_config_radar_detection(struct ath10k *ar)
 	}
 }
 
+static int ath10k_vdev_start(struct ath10k_vif *arvif)
+{
+	struct ath10k *ar = arvif->ar;
+	struct cfg80211_chan_def *chandef = &ar->chandef;
+	struct wmi_vdev_start_request_arg arg = {};
+	int ret = 0;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	reinit_completion(&ar->vdev_setup_done);
+
+	arg.vdev_id = arvif->vdev_id;
+	arg.dtim_period = arvif->dtim_period;
+	arg.bcn_intval = arvif->beacon_interval;
+
+	arg.channel.freq = chandef->chan->center_freq;
+	arg.channel.band_center_freq1 = chandef->center_freq1;
+	arg.channel.mode = chan_to_phymode(chandef);
+
+	arg.channel.min_power = 0;
+	arg.channel.max_power = chandef->chan->max_power * 2;
+	arg.channel.max_reg_power = chandef->chan->max_reg_power * 2;
+	arg.channel.max_antenna_gain = chandef->chan->max_antenna_gain * 2;
+
+	if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
+		arg.ssid = arvif->u.ap.ssid;
+		arg.ssid_len = arvif->u.ap.ssid_len;
+		arg.hidden_ssid = arvif->u.ap.hidden_ssid;
+
+		/* For now allow DFS for AP mode */
+		arg.channel.chan_radar =
+			!!(chandef->chan->flags & IEEE80211_CHAN_RADAR);
+	} else if (arvif->vdev_type == WMI_VDEV_TYPE_IBSS) {
+		arg.ssid = arvif->vif->bss_conf.ssid;
+		arg.ssid_len = arvif->vif->bss_conf.ssid_len;
+	}
+
+	ath10k_dbg(ATH10K_DBG_MAC,
+		   "mac vdev %d start center_freq %d phymode %s\n",
+		   arg.vdev_id, arg.channel.freq,
+		   ath10k_wmi_phymode_str(arg.channel.mode));
+
+	ret = ath10k_wmi_vdev_start(ar, &arg);
+	if (ret) {
+		ath10k_warn("failed to start WMI vdev %i: %d\n",
+			    arg.vdev_id, ret);
+		return ret;
+	}
+
+	ret = ath10k_vdev_setup_sync(ar);
+	if (ret) {
+		ath10k_warn("failed to synchronise setup for vdev %i: %d\n",
+			    arg.vdev_id, ret);
+		return ret;
+	}
+
+	return ret;
+}
+
+static int ath10k_vdev_stop(struct ath10k_vif *arvif)
+{
+	struct ath10k *ar = arvif->ar;
+	int ret;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	reinit_completion(&ar->vdev_setup_done);
+
+	ret = ath10k_wmi_vdev_stop(ar, arvif->vdev_id);
+	if (ret) {
+		ath10k_warn("failed to stop WMI vdev %i: %d\n",
+			    arvif->vdev_id, ret);
+		return ret;
+	}
+
+	ret = ath10k_vdev_setup_sync(ar);
+	if (ret) {
+		ath10k_warn("failed to syncronise setup for vdev %i: %d\n",
+			    arvif->vdev_id, ret);
+		return ret;
+	}
+
+	return ret;
+}
+
 static void ath10k_control_beaconing(struct ath10k_vif *arvif,
 				struct ieee80211_bss_conf *info)
 {

From d650097bfadab387dfb762bf46b8598cbedf50b3 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Tue, 8 Apr 2014 09:56:09 +0300
Subject: [PATCH 47/48] ath10k: refactor radar detection code

If 20MHz CAC completed successfully then
subsequent CAC with wider bandwidth (40Mhz, 80Mhz)
with identical control frequency did not start
monitor vdev making it impossible to detect any
radar pulses during intended CAC.

It also was incorrect to assume ath10k_config() will
be called after CAC is finished. Theoretically for
non-HT channels nothing changes between CAC and
start_ap() (albeit in practice this can be
different). The incorrect assumption led to CAC
not being stopped on non-HT chandefs leading to
all Rx being drooped making it impossible for
clients to associate.

While at it clean up the code a bit.

kvalo: separate WARN_ON() from the if statement

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.h |  4 ++
 drivers/net/wireless/ath/ath10k/mac.c  | 56 +++++++++-----------------
 2 files changed, 23 insertions(+), 37 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index 33029767a412..2c1dfd719146 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -436,6 +436,10 @@ struct ath10k {
 	unsigned long dev_flags;
 	u32 dfs_block_radar_events;
 
+	/* protected by conf_mutex */
+	bool radar_enabled;
+	int num_started_vdevs;
+
 	struct wmi_pdev_set_wmm_params_arg wmm_params;
 	struct completion install_key_done;
 
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 7a56caca4fc0..8385a7ad02ac 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -767,49 +767,18 @@ static int ath10k_stop_cac(struct ath10k *ar)
 	return 0;
 }
 
-static const char *ath10k_dfs_state(enum nl80211_dfs_state dfs_state)
+static void ath10k_recalc_radar_detection(struct ath10k *ar)
 {
-	switch (dfs_state) {
-	case NL80211_DFS_USABLE:
-		return "USABLE";
-	case NL80211_DFS_UNAVAILABLE:
-		return "UNAVAILABLE";
-	case NL80211_DFS_AVAILABLE:
-		return "AVAILABLE";
-	default:
-		WARN_ON(1);
-		return "bug";
-	}
-}
-
-static void ath10k_config_radar_detection(struct ath10k *ar)
-{
-	struct ieee80211_channel *chan = ar->hw->conf.chandef.chan;
-	bool radar = ar->hw->conf.radar_enabled;
-	bool chan_radar = !!(chan->flags & IEEE80211_CHAN_RADAR);
-	enum nl80211_dfs_state dfs_state = chan->dfs_state;
 	int ret;
 
 	lockdep_assert_held(&ar->conf_mutex);
 
-	ath10k_dbg(ATH10K_DBG_MAC,
-		   "mac radar config update: chan %dMHz radar %d chan radar %d chan state %s\n",
-		   chan->center_freq, radar, chan_radar,
-		   ath10k_dfs_state(dfs_state));
-
-	/*
-	 * It's safe to call it even if CAC is not started.
-	 * This call here guarantees changing channel, etc. will stop CAC.
-	 */
 	ath10k_stop_cac(ar);
 
-	if (!radar)
+	if (!ar->radar_enabled)
 		return;
 
-	if (!chan_radar)
-		return;
-
-	if (dfs_state != NL80211_DFS_USABLE)
+	if (ar->num_started_vdevs > 0)
 		return;
 
 	ret = ath10k_start_cac(ar);
@@ -880,6 +849,9 @@ static int ath10k_vdev_start(struct ath10k_vif *arvif)
 		return ret;
 	}
 
+	ar->num_started_vdevs++;
+	ath10k_recalc_radar_detection(ar);
+
 	return ret;
 }
 
@@ -906,6 +878,13 @@ static int ath10k_vdev_stop(struct ath10k_vif *arvif)
 		return ret;
 	}
 
+	WARN_ON(ar->num_started_vdevs == 0);
+
+	if (ar->num_started_vdevs != 0) {
+		ar->num_started_vdevs--;
+		ath10k_recalc_radar_detection(ar);
+	}
+
 	return ret;
 }
 
@@ -2395,6 +2374,7 @@ static int ath10k_start(struct ieee80211_hw *hw)
 		goto exit;
 	}
 
+	ar->num_started_vdevs = 0;
 	ath10k_regd_update(ar);
 	ret = 0;
 
@@ -2541,15 +2521,17 @@ static int ath10k_config(struct ieee80211_hw *hw, u32 changed)
 
 	if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
 		ath10k_dbg(ATH10K_DBG_MAC,
-			   "mac config channel %d mhz flags 0x%x\n",
+			   "mac config channel %dMHz flags 0x%x radar %d\n",
 			   conf->chandef.chan->center_freq,
-			   conf->chandef.chan->flags);
+			   conf->chandef.chan->flags,
+			   conf->radar_enabled);
 
 		spin_lock_bh(&ar->data_lock);
 		ar->rx_channel = conf->chandef.chan;
 		spin_unlock_bh(&ar->data_lock);
 
-		ath10k_config_radar_detection(ar);
+		ar->radar_enabled = conf->radar_enabled;
+		ath10k_recalc_radar_detection(ar);
 
 		if (!cfg80211_chandef_identical(&ar->chandef, &conf->chandef)) {
 			ar->chandef = conf->chandef;

From 4bfee8e8c13fc9477eb9420efd5a5d12e32ac614 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Tue, 8 Apr 2014 13:21:40 +0200
Subject: [PATCH 48/48] ath10k: improve htc tx credit debugging prints

This way it's easier to track and debug htc tx
credit issues.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/htc.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/htc.c b/drivers/net/wireless/ath/ath10k/htc.c
index 7f1bccd3597f..5b58dbb17416 100644
--- a/drivers/net/wireless/ath/ath10k/htc.c
+++ b/drivers/net/wireless/ath/ath10k/htc.c
@@ -157,6 +157,9 @@ int ath10k_htc_send(struct ath10k_htc *htc,
 			goto err_pull;
 		}
 		ep->tx_credits -= credits;
+		ath10k_dbg(ATH10K_DBG_HTC,
+			   "htc ep %d consumed %d credits (total %d)\n",
+			   eid, credits, ep->tx_credits);
 		spin_unlock_bh(&htc->tx_lock);
 	}
 
@@ -185,6 +188,9 @@ int ath10k_htc_send(struct ath10k_htc *htc,
 	if (ep->tx_credit_flow_enabled) {
 		spin_lock_bh(&htc->tx_lock);
 		ep->tx_credits += credits;
+		ath10k_dbg(ATH10K_DBG_HTC,
+			   "htc ep %d reverted %d credits back (total %d)\n",
+			   eid, credits, ep->tx_credits);
 		spin_unlock_bh(&htc->tx_lock);
 
 		if (ep->ep_ops.ep_tx_credits)
@@ -234,12 +240,12 @@ ath10k_htc_process_credit_report(struct ath10k_htc *htc,
 		if (report->eid >= ATH10K_HTC_EP_COUNT)
 			break;
 
-		ath10k_dbg(ATH10K_DBG_HTC, "ep %d got %d credits\n",
-			   report->eid, report->credits);
-
 		ep = &htc->endpoint[report->eid];
 		ep->tx_credits += report->credits;
 
+		ath10k_dbg(ATH10K_DBG_HTC, "htc ep %d got %d credits (total %d)\n",
+			   report->eid, report->credits, ep->tx_credits);
+
 		if (ep->ep_ops.ep_tx_credits) {
 			spin_unlock_bh(&htc->tx_lock);
 			ep->ep_ops.ep_tx_credits(htc->ar);