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linux/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c

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/*
* QLogic qlcnic NIC Driver
* Copyright (c) 2009-2013 QLogic Corporation
*
* See LICENSE.qlcnic for copyright and licensing details.
*/
#include <linux/vmalloc.h>
#include <linux/interrupt.h>
#include "qlcnic.h"
#include "qlcnic_sriov.h"
#include "qlcnic_hw.h"
#include <linux/swab.h>
#include <linux/dma-mapping.h>
#include <linux/if_vlan.h>
#include <net/ip.h>
#include <linux/ipv6.h>
#include <linux/inetdevice.h>
#include <linux/aer.h>
#include <linux/log2.h>
#include <linux/pci.h>
#ifdef CONFIG_QLCNIC_VXLAN
#include <net/vxlan.h>
#endif
MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
char qlcnic_driver_name[] = "qlcnic";
static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
"Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
static int qlcnic_mac_learn;
module_param(qlcnic_mac_learn, int, 0444);
MODULE_PARM_DESC(qlcnic_mac_learn,
"Mac Filter (0=learning is disabled, 1=Driver learning is enabled, 2=FDB learning is enabled)");
int qlcnic_use_msi = 1;
MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled)");
module_param_named(use_msi, qlcnic_use_msi, int, 0444);
int qlcnic_use_msi_x = 1;
MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled)");
module_param_named(use_msi_x, qlcnic_use_msi_x, int, 0444);
int qlcnic_auto_fw_reset = 1;
MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled)");
module_param_named(auto_fw_reset, qlcnic_auto_fw_reset, int, 0644);
int qlcnic_load_fw_file;
MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file)");
module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444);
static int qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
static void qlcnic_remove(struct pci_dev *pdev);
static int qlcnic_open(struct net_device *netdev);
static int qlcnic_close(struct net_device *netdev);
static void qlcnic_tx_timeout(struct net_device *netdev);
static void qlcnic_attach_work(struct work_struct *work);
static void qlcnic_fwinit_work(struct work_struct *work);
#ifdef CONFIG_NET_POLL_CONTROLLER
static void qlcnic_poll_controller(struct net_device *netdev);
#endif
static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
static irqreturn_t qlcnic_intr(int irq, void *data);
static irqreturn_t qlcnic_msi_intr(int irq, void *data);
static irqreturn_t qlcnic_msix_intr(int irq, void *data);
static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data);
static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
static int qlcnic_start_firmware(struct qlcnic_adapter *);
static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
static int qlcnic_vlan_rx_add(struct net_device *, __be16, u16);
static int qlcnic_vlan_rx_del(struct net_device *, __be16, u16);
static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *);
static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *, u32);
static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *);
static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *);
static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *);
static void qlcnic_82xx_io_resume(struct pci_dev *);
static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *);
static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *,
pci_channel_state_t);
static u32 qlcnic_vlan_tx_check(struct qlcnic_adapter *adapter)
{
struct qlcnic_hardware_context *ahw = adapter->ahw;
if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X)
return ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX;
else
return 1;
}
/* PCI Device ID Table */
#define ENTRY(device) \
{PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
.class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
ENTRY(PCI_DEVICE_ID_QLOGIC_QLE834X),
ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE834X),
ENTRY(PCI_DEVICE_ID_QLOGIC_QLE844X),
ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE844X),
{0,}
};
MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
inline void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *tx_ring)
{
writel(tx_ring->producer, tx_ring->crb_cmd_producer);
}
static const u32 msi_tgt_status[8] = {
ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
};
static const u32 qlcnic_reg_tbl[] = {
0x1B20A8, /* PEG_HALT_STAT1 */
0x1B20AC, /* PEG_HALT_STAT2 */
0x1B20B0, /* FW_HEARTBEAT */
0x1B2100, /* LOCK ID */
0x1B2128, /* FW_CAPABILITIES */
0x1B2138, /* drv active */
0x1B2140, /* dev state */
0x1B2144, /* drv state */
0x1B2148, /* drv scratch */
0x1B214C, /* dev partition info */
0x1B2174, /* drv idc ver */
0x1B2150, /* fw version major */
0x1B2154, /* fw version minor */
0x1B2158, /* fw version sub */
0x1B219C, /* npar state */
0x1B21FC, /* FW_IMG_VALID */
0x1B2250, /* CMD_PEG_STATE */
0x1B233C, /* RCV_PEG_STATE */
0x1B23B4, /* ASIC TEMP */
0x1B216C, /* FW api */
0x1B2170, /* drv op mode */
0x13C010, /* flash lock */
0x13C014, /* flash unlock */
};
static const struct qlcnic_board_info qlcnic_boards[] = {
{ PCI_VENDOR_ID_QLOGIC,
PCI_DEVICE_ID_QLOGIC_QLE844X,
0x0,
0x0,
"8400 series 10GbE Converged Network Adapter (TCP/IP Networking)" },
{ PCI_VENDOR_ID_QLOGIC,
PCI_DEVICE_ID_QLOGIC_QLE834X,
PCI_VENDOR_ID_QLOGIC,
0x24e,
"8300 Series Dual Port 10GbE Converged Network Adapter "
"(TCP/IP Networking)" },
{ PCI_VENDOR_ID_QLOGIC,
PCI_DEVICE_ID_QLOGIC_QLE834X,
PCI_VENDOR_ID_QLOGIC,
0x243,
"8300 Series Single Port 10GbE Converged Network Adapter "
"(TCP/IP Networking)" },
{ PCI_VENDOR_ID_QLOGIC,
PCI_DEVICE_ID_QLOGIC_QLE834X,
PCI_VENDOR_ID_QLOGIC,
0x24a,
"8300 Series Dual Port 10GbE Converged Network Adapter "
"(TCP/IP Networking)" },
{ PCI_VENDOR_ID_QLOGIC,
PCI_DEVICE_ID_QLOGIC_QLE834X,
PCI_VENDOR_ID_QLOGIC,
0x246,
"8300 Series Dual Port 10GbE Converged Network Adapter "
"(TCP/IP Networking)" },
{ PCI_VENDOR_ID_QLOGIC,
PCI_DEVICE_ID_QLOGIC_QLE834X,
PCI_VENDOR_ID_QLOGIC,
0x252,
"8300 Series Dual Port 10GbE Converged Network Adapter "
"(TCP/IP Networking)" },
{ PCI_VENDOR_ID_QLOGIC,
PCI_DEVICE_ID_QLOGIC_QLE834X,
PCI_VENDOR_ID_QLOGIC,
0x26e,
"8300 Series Dual Port 10GbE Converged Network Adapter "
"(TCP/IP Networking)" },
{ PCI_VENDOR_ID_QLOGIC,
PCI_DEVICE_ID_QLOGIC_QLE834X,
PCI_VENDOR_ID_QLOGIC,
0x260,
"8300 Series Dual Port 10GbE Converged Network Adapter "
"(TCP/IP Networking)" },
{ PCI_VENDOR_ID_QLOGIC,
PCI_DEVICE_ID_QLOGIC_QLE834X,
PCI_VENDOR_ID_QLOGIC,
0x266,
"8300 Series Single Port 10GbE Converged Network Adapter "
"(TCP/IP Networking)" },
{ PCI_VENDOR_ID_QLOGIC,
PCI_DEVICE_ID_QLOGIC_QLE834X,
PCI_VENDOR_ID_QLOGIC,
0x269,
"8300 Series Dual Port 10GbE Converged Network Adapter "
"(TCP/IP Networking)" },
{ PCI_VENDOR_ID_QLOGIC,
PCI_DEVICE_ID_QLOGIC_QLE834X,
PCI_VENDOR_ID_QLOGIC,
0x271,
"8300 Series Dual Port 10GbE Converged Network Adapter "
"(TCP/IP Networking)" },
{ PCI_VENDOR_ID_QLOGIC,
PCI_DEVICE_ID_QLOGIC_QLE834X,
0x0, 0x0, "8300 Series 1/10GbE Controller" },
{ PCI_VENDOR_ID_QLOGIC,
PCI_DEVICE_ID_QLOGIC_QLE824X,
PCI_VENDOR_ID_QLOGIC,
0x203,
"8200 Series Single Port 10GbE Converged Network Adapter"
"(TCP/IP Networking)" },
{ PCI_VENDOR_ID_QLOGIC,
PCI_DEVICE_ID_QLOGIC_QLE824X,
PCI_VENDOR_ID_QLOGIC,
0x207,
"8200 Series Dual Port 10GbE Converged Network Adapter"
"(TCP/IP Networking)" },
{ PCI_VENDOR_ID_QLOGIC,
PCI_DEVICE_ID_QLOGIC_QLE824X,
PCI_VENDOR_ID_QLOGIC,
0x20b,
"3200 Series Dual Port 10Gb Intelligent Ethernet Adapter" },
{ PCI_VENDOR_ID_QLOGIC,
PCI_DEVICE_ID_QLOGIC_QLE824X,
PCI_VENDOR_ID_QLOGIC,
0x20c,
"3200 Series Quad Port 1Gb Intelligent Ethernet Adapter" },
{ PCI_VENDOR_ID_QLOGIC,
PCI_DEVICE_ID_QLOGIC_QLE824X,
PCI_VENDOR_ID_QLOGIC,
0x20f,
"3200 Series Single Port 10Gb Intelligent Ethernet Adapter" },
{ PCI_VENDOR_ID_QLOGIC,
PCI_DEVICE_ID_QLOGIC_QLE824X,
0x103c, 0x3733,
"NC523SFP 10Gb 2-port Server Adapter" },
{ PCI_VENDOR_ID_QLOGIC,
PCI_DEVICE_ID_QLOGIC_QLE824X,
0x103c, 0x3346,
"CN1000Q Dual Port Converged Network Adapter" },
{ PCI_VENDOR_ID_QLOGIC,
PCI_DEVICE_ID_QLOGIC_QLE824X,
PCI_VENDOR_ID_QLOGIC,
0x210,
"QME8242-k 10GbE Dual Port Mezzanine Card" },
{ PCI_VENDOR_ID_QLOGIC,
PCI_DEVICE_ID_QLOGIC_QLE824X,
0x0, 0x0, "cLOM8214 1/10GbE Controller" },
};
#define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards)
static const
struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
{
int size = sizeof(struct qlcnic_host_sds_ring) * count;
recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
return recv_ctx->sds_rings == NULL;
}
void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
{
if (recv_ctx->sds_rings != NULL)
kfree(recv_ctx->sds_rings);
recv_ctx->sds_rings = NULL;
}
int qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
struct pci_dev *pdev = adapter->pdev;
u8 mac_addr[ETH_ALEN];
int ret;
ret = qlcnic_get_mac_address(adapter, mac_addr,
adapter->ahw->pci_func);
if (ret)
return ret;
memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
/* set station address */
if (!is_valid_ether_addr(netdev->dev_addr))
dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
netdev->dev_addr);
return 0;
}
static void qlcnic_delete_adapter_mac(struct qlcnic_adapter *adapter)
{
struct qlcnic_mac_vlan_list *cur;
struct list_head *head;
list_for_each(head, &adapter->mac_list) {
cur = list_entry(head, struct qlcnic_mac_vlan_list, list);
if (ether_addr_equal_unaligned(adapter->mac_addr, cur->mac_addr)) {
qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
0, QLCNIC_MAC_DEL);
list_del(&cur->list);
kfree(cur);
return;
}
}
}
static int qlcnic_set_mac(struct net_device *netdev, void *p)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
struct sockaddr *addr = p;
if (qlcnic_sriov_vf_check(adapter))
return -EINVAL;
if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
return -EOPNOTSUPP;
if (!is_valid_ether_addr(addr->sa_data))
return -EINVAL;
if (ether_addr_equal_unaligned(adapter->mac_addr, addr->sa_data))
return 0;
if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
netif_device_detach(netdev);
qlcnic_napi_disable(adapter);
}
qlcnic_delete_adapter_mac(adapter);
memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
qlcnic_set_multi(adapter->netdev);
if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
netif_device_attach(netdev);
qlcnic_napi_enable(adapter);
}
return 0;
}
static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
struct net_device *netdev, const unsigned char *addr)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
int err = -EOPNOTSUPP;
if (!adapter->fdb_mac_learn)
return ndo_dflt_fdb_del(ndm, tb, netdev, addr);
if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
if (is_unicast_ether_addr(addr)) {
err = dev_uc_del(netdev, addr);
if (!err)
err = qlcnic_nic_del_mac(adapter, addr);
} else if (is_multicast_ether_addr(addr)) {
err = dev_mc_del(netdev, addr);
} else {
err = -EINVAL;
}
}
return err;
}
static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
struct net_device *netdev,
const unsigned char *addr, u16 flags)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
int err = 0;
if (!adapter->fdb_mac_learn)
return ndo_dflt_fdb_add(ndm, tb, netdev, addr, flags);
if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
pr_info("%s: FDB e-switch is not enabled\n", __func__);
return -EOPNOTSUPP;
}
if (ether_addr_equal(addr, adapter->mac_addr))
return err;
if (is_unicast_ether_addr(addr)) {
if (netdev_uc_count(netdev) < adapter->ahw->max_uc_count)
err = dev_uc_add_excl(netdev, addr);
else
err = -ENOMEM;
} else if (is_multicast_ether_addr(addr)) {
err = dev_mc_add_excl(netdev, addr);
} else {
err = -EINVAL;
}
return err;
}
static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
struct net_device *netdev, int idx)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
if (!adapter->fdb_mac_learn)
return ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
idx = ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
return idx;
}
static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
{
while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
usleep_range(10000, 11000);
if (!adapter->fw_work.work.func)
return;
cancel_delayed_work_sync(&adapter->fw_work);
}
static int qlcnic_get_phys_port_id(struct net_device *netdev,
struct netdev_phys_port_id *ppid)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
struct qlcnic_hardware_context *ahw = adapter->ahw;
if (!(adapter->flags & QLCNIC_HAS_PHYS_PORT_ID))
return -EOPNOTSUPP;
ppid->id_len = sizeof(ahw->phys_port_id);
memcpy(ppid->id, ahw->phys_port_id, ppid->id_len);
return 0;
}
#ifdef CONFIG_QLCNIC_VXLAN
static void qlcnic_add_vxlan_port(struct net_device *netdev,
sa_family_t sa_family, __be16 port)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
struct qlcnic_hardware_context *ahw = adapter->ahw;
/* Adapter supports only one VXLAN port. Use very first port
* for enabling offload
*/
if (!qlcnic_encap_rx_offload(adapter) || ahw->vxlan_port)
return;
ahw->vxlan_port = ntohs(port);
adapter->flags |= QLCNIC_ADD_VXLAN_PORT;
}
static void qlcnic_del_vxlan_port(struct net_device *netdev,
sa_family_t sa_family, __be16 port)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
struct qlcnic_hardware_context *ahw = adapter->ahw;
if (!qlcnic_encap_rx_offload(adapter) || !ahw->vxlan_port ||
(ahw->vxlan_port != ntohs(port)))
return;
adapter->flags |= QLCNIC_DEL_VXLAN_PORT;
}
#endif
static const struct net_device_ops qlcnic_netdev_ops = {
.ndo_open = qlcnic_open,
.ndo_stop = qlcnic_close,
.ndo_start_xmit = qlcnic_xmit_frame,
.ndo_get_stats = qlcnic_get_stats,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_rx_mode = qlcnic_set_multi,
.ndo_set_mac_address = qlcnic_set_mac,
.ndo_change_mtu = qlcnic_change_mtu,
.ndo_fix_features = qlcnic_fix_features,
.ndo_set_features = qlcnic_set_features,
.ndo_tx_timeout = qlcnic_tx_timeout,
.ndo_vlan_rx_add_vid = qlcnic_vlan_rx_add,
.ndo_vlan_rx_kill_vid = qlcnic_vlan_rx_del,
.ndo_fdb_add = qlcnic_fdb_add,
.ndo_fdb_del = qlcnic_fdb_del,
.ndo_fdb_dump = qlcnic_fdb_dump,
.ndo_get_phys_port_id = qlcnic_get_phys_port_id,
#ifdef CONFIG_QLCNIC_VXLAN
.ndo_add_vxlan_port = qlcnic_add_vxlan_port,
.ndo_del_vxlan_port = qlcnic_del_vxlan_port,
#endif
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = qlcnic_poll_controller,
#endif
#ifdef CONFIG_QLCNIC_SRIOV
.ndo_set_vf_mac = qlcnic_sriov_set_vf_mac,
.ndo_set_vf_tx_rate = qlcnic_sriov_set_vf_tx_rate,
.ndo_get_vf_config = qlcnic_sriov_get_vf_config,
.ndo_set_vf_vlan = qlcnic_sriov_set_vf_vlan,
.ndo_set_vf_spoofchk = qlcnic_sriov_set_vf_spoofchk,
#endif
};
static const struct net_device_ops qlcnic_netdev_failed_ops = {
.ndo_open = qlcnic_open,
};
static struct qlcnic_nic_template qlcnic_ops = {
.config_bridged_mode = qlcnic_config_bridged_mode,
.config_led = qlcnic_82xx_config_led,
.start_firmware = qlcnic_82xx_start_firmware,
.request_reset = qlcnic_82xx_dev_request_reset,
.cancel_idc_work = qlcnic_82xx_cancel_idc_work,
.napi_add = qlcnic_82xx_napi_add,
.napi_del = qlcnic_82xx_napi_del,
.config_ipaddr = qlcnic_82xx_config_ipaddr,
.shutdown = qlcnic_82xx_shutdown,
.resume = qlcnic_82xx_resume,
.clear_legacy_intr = qlcnic_82xx_clear_legacy_intr,
};
struct qlcnic_nic_template qlcnic_vf_ops = {
.config_bridged_mode = qlcnicvf_config_bridged_mode,
.config_led = qlcnicvf_config_led,
.start_firmware = qlcnicvf_start_firmware
};
static struct qlcnic_hardware_ops qlcnic_hw_ops = {
.read_crb = qlcnic_82xx_read_crb,
.write_crb = qlcnic_82xx_write_crb,
.read_reg = qlcnic_82xx_hw_read_wx_2M,
.write_reg = qlcnic_82xx_hw_write_wx_2M,
.get_mac_address = qlcnic_82xx_get_mac_address,
.setup_intr = qlcnic_82xx_setup_intr,
.alloc_mbx_args = qlcnic_82xx_alloc_mbx_args,
.mbx_cmd = qlcnic_82xx_issue_cmd,
.get_func_no = qlcnic_82xx_get_func_no,
.api_lock = qlcnic_82xx_api_lock,
.api_unlock = qlcnic_82xx_api_unlock,
.add_sysfs = qlcnic_82xx_add_sysfs,
.remove_sysfs = qlcnic_82xx_remove_sysfs,
.process_lb_rcv_ring_diag = qlcnic_82xx_process_rcv_ring_diag,
.create_rx_ctx = qlcnic_82xx_fw_cmd_create_rx_ctx,
.create_tx_ctx = qlcnic_82xx_fw_cmd_create_tx_ctx,
.del_rx_ctx = qlcnic_82xx_fw_cmd_del_rx_ctx,
.del_tx_ctx = qlcnic_82xx_fw_cmd_del_tx_ctx,
.setup_link_event = qlcnic_82xx_linkevent_request,
.get_nic_info = qlcnic_82xx_get_nic_info,
.get_pci_info = qlcnic_82xx_get_pci_info,
.set_nic_info = qlcnic_82xx_set_nic_info,
.change_macvlan = qlcnic_82xx_sre_macaddr_change,
.napi_enable = qlcnic_82xx_napi_enable,
.napi_disable = qlcnic_82xx_napi_disable,
.config_intr_coal = qlcnic_82xx_config_intr_coalesce,
.config_rss = qlcnic_82xx_config_rss,
.config_hw_lro = qlcnic_82xx_config_hw_lro,
.config_loopback = qlcnic_82xx_set_lb_mode,
.clear_loopback = qlcnic_82xx_clear_lb_mode,
.config_promisc_mode = qlcnic_82xx_nic_set_promisc,
.change_l2_filter = qlcnic_82xx_change_filter,
.get_board_info = qlcnic_82xx_get_board_info,
.set_mac_filter_count = qlcnic_82xx_set_mac_filter_count,
.free_mac_list = qlcnic_82xx_free_mac_list,
.read_phys_port_id = qlcnic_82xx_read_phys_port_id,
.io_error_detected = qlcnic_82xx_io_error_detected,
.io_slot_reset = qlcnic_82xx_io_slot_reset,
.io_resume = qlcnic_82xx_io_resume,
.get_beacon_state = qlcnic_82xx_get_beacon_state,
.enable_sds_intr = qlcnic_82xx_enable_sds_intr,
.disable_sds_intr = qlcnic_82xx_disable_sds_intr,
.enable_tx_intr = qlcnic_82xx_enable_tx_intr,
.disable_tx_intr = qlcnic_82xx_disable_tx_intr,
.get_saved_state = qlcnic_82xx_get_saved_state,
.set_saved_state = qlcnic_82xx_set_saved_state,
.cache_tmpl_hdr_values = qlcnic_82xx_cache_tmpl_hdr_values,
.get_cap_size = qlcnic_82xx_get_cap_size,
.set_sys_info = qlcnic_82xx_set_sys_info,
.store_cap_mask = qlcnic_82xx_store_cap_mask,
};
static int qlcnic_check_multi_tx_capability(struct qlcnic_adapter *adapter)
{
struct qlcnic_hardware_context *ahw = adapter->ahw;
if (qlcnic_82xx_check(adapter) &&
(ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_MULTI_TX)) {
test_and_set_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
return 0;
} else {
return 1;
}
}
static int qlcnic_max_rings(struct qlcnic_adapter *adapter, u8 ring_cnt,
int queue_type)
{
int num_rings, max_rings = QLCNIC_MAX_SDS_RINGS;
if (queue_type == QLCNIC_RX_QUEUE)
max_rings = adapter->max_sds_rings;
else if (queue_type == QLCNIC_TX_QUEUE)
max_rings = adapter->max_tx_rings;
num_rings = rounddown_pow_of_two(min_t(int, num_online_cpus(),
max_rings));
if (ring_cnt > num_rings)
return num_rings;
else
return ring_cnt;
}
void qlcnic_set_tx_ring_count(struct qlcnic_adapter *adapter, u8 tx_cnt)
{
/* 83xx adapter does not have max_tx_rings intialized in probe */
if (adapter->max_tx_rings)
adapter->drv_tx_rings = qlcnic_max_rings(adapter, tx_cnt,
QLCNIC_TX_QUEUE);
else
adapter->drv_tx_rings = tx_cnt;
}
void qlcnic_set_sds_ring_count(struct qlcnic_adapter *adapter, u8 rx_cnt)
{
/* 83xx adapter does not have max_sds_rings intialized in probe */
if (adapter->max_sds_rings)
adapter->drv_sds_rings = qlcnic_max_rings(adapter, rx_cnt,
QLCNIC_RX_QUEUE);
else
adapter->drv_sds_rings = rx_cnt;
}
int qlcnic_setup_tss_rss_intr(struct qlcnic_adapter *adapter)
{
struct pci_dev *pdev = adapter->pdev;
int num_msix = 0, err = 0, vector;
adapter->flags &= ~QLCNIC_TSS_RSS;
if (adapter->drv_tss_rings > 0)
num_msix += adapter->drv_tss_rings;
else
num_msix += adapter->drv_tx_rings;
if (adapter->drv_rss_rings > 0)
num_msix += adapter->drv_rss_rings;
else
num_msix += adapter->drv_sds_rings;
if (qlcnic_83xx_check(adapter))
num_msix += 1;
if (!adapter->msix_entries) {
adapter->msix_entries = kcalloc(num_msix,
sizeof(struct msix_entry),
GFP_KERNEL);
if (!adapter->msix_entries)
return -ENOMEM;
}
restore:
for (vector = 0; vector < num_msix; vector++)
adapter->msix_entries[vector].entry = vector;
err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
if (err == 0) {
adapter->ahw->num_msix = num_msix;
if (adapter->drv_tss_rings > 0)
adapter->drv_tx_rings = adapter->drv_tss_rings;
if (adapter->drv_rss_rings > 0)
adapter->drv_sds_rings = adapter->drv_rss_rings;
} else {
netdev_info(adapter->netdev,
"Unable to allocate %d MSI-X vectors, Available vectors %d\n",
num_msix, err);
num_msix = adapter->drv_tx_rings + adapter->drv_sds_rings;
/* Set rings to 0 so we can restore original TSS/RSS count */
adapter->drv_tss_rings = 0;
adapter->drv_rss_rings = 0;
if (qlcnic_83xx_check(adapter))
num_msix += 1;
netdev_info(adapter->netdev,
"Restoring %d Tx, %d SDS rings for total %d vectors.\n",
adapter->drv_tx_rings, adapter->drv_sds_rings,
num_msix);
goto restore;
err = -EIO;
}
return err;
}
int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
{
struct pci_dev *pdev = adapter->pdev;
int err, vector;
if (!adapter->msix_entries) {
adapter->msix_entries = kcalloc(num_msix,
sizeof(struct msix_entry),
GFP_KERNEL);
if (!adapter->msix_entries)
return -ENOMEM;
}
adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
if (adapter->ahw->msix_supported) {
enable_msix:
for (vector = 0; vector < num_msix; vector++)
adapter->msix_entries[vector].entry = vector;
err = pci_enable_msix_range(pdev,
adapter->msix_entries, 1, num_msix);
if (err == num_msix) {
adapter->flags |= QLCNIC_MSIX_ENABLED;
adapter->ahw->num_msix = num_msix;
dev_info(&pdev->dev, "using msi-x interrupts\n");
return 0;
} else if (err > 0) {
pci_disable_msix(pdev);
dev_info(&pdev->dev,
"Unable to allocate %d MSI-X vectors, Available vectors %d\n",
num_msix, err);
if (qlcnic_82xx_check(adapter)) {
num_msix = rounddown_pow_of_two(err);
if (err < QLCNIC_82XX_MINIMUM_VECTOR)
return -ENOSPC;
} else {
num_msix = rounddown_pow_of_two(err - 1);
num_msix += 1;
if (err < QLCNIC_83XX_MINIMUM_VECTOR)
return -ENOSPC;
}
if (qlcnic_82xx_check(adapter) &&
!qlcnic_check_multi_tx(adapter)) {
adapter->drv_sds_rings = num_msix;
adapter->drv_tx_rings = QLCNIC_SINGLE_RING;
} else {
/* Distribute vectors equally */
adapter->drv_tx_rings = num_msix / 2;
adapter->drv_sds_rings = adapter->drv_tx_rings;
}
if (num_msix) {
dev_info(&pdev->dev,
"Trying to allocate %d MSI-X interrupt vectors\n",
num_msix);
goto enable_msix;
}
} else {
dev_info(&pdev->dev,
"Unable to allocate %d MSI-X vectors, err=%d\n",
num_msix, err);
return err;
}
}
return -EIO;
}
static int qlcnic_82xx_calculate_msix_vector(struct qlcnic_adapter *adapter)
{
int num_msix;
num_msix = adapter->drv_sds_rings;
if (qlcnic_check_multi_tx(adapter))
num_msix += adapter->drv_tx_rings;
else
num_msix += QLCNIC_SINGLE_RING;
return num_msix;
}
static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
{
int err = 0;
u32 offset, mask_reg;
const struct qlcnic_legacy_intr_set *legacy_intrp;
struct qlcnic_hardware_context *ahw = adapter->ahw;
struct pci_dev *pdev = adapter->pdev;
if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
adapter->flags |= QLCNIC_MSI_ENABLED;
offset = msi_tgt_status[adapter->ahw->pci_func];
adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
offset);
dev_info(&pdev->dev, "using msi interrupts\n");
adapter->msix_entries[0].vector = pdev->irq;
return err;
}
if (qlcnic_use_msi || qlcnic_use_msi_x)
return -EOPNOTSUPP;
legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
offset = legacy_intrp->tgt_status_reg;
adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
mask_reg = legacy_intrp->tgt_mask_reg;
adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
dev_info(&pdev->dev, "using legacy interrupts\n");
adapter->msix_entries[0].vector = pdev->irq;
return err;
}
static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter)
{
int num_msix, err = 0;
if (adapter->flags & QLCNIC_TSS_RSS) {
err = qlcnic_setup_tss_rss_intr(adapter);
if (err < 0)
return err;
num_msix = adapter->ahw->num_msix;
} else {
num_msix = qlcnic_82xx_calculate_msix_vector(adapter);
err = qlcnic_enable_msix(adapter, num_msix);
if (err == -ENOMEM)
return err;
if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
qlcnic_disable_multi_tx(adapter);
adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
err = qlcnic_enable_msi_legacy(adapter);
if (err)
return err;
}
}
return 0;
}
int qlcnic_82xx_mq_intrpt(struct qlcnic_adapter *adapter, int op_type)
{
struct qlcnic_hardware_context *ahw = adapter->ahw;
int err, i;
if (qlcnic_check_multi_tx(adapter) &&
!ahw->diag_test &&
(adapter->flags & QLCNIC_MSIX_ENABLED)) {
ahw->intr_tbl = vzalloc(ahw->num_msix *
sizeof(struct qlcnic_intrpt_config));
if (!ahw->intr_tbl)
return -ENOMEM;
for (i = 0; i < ahw->num_msix; i++) {
ahw->intr_tbl[i].type = QLCNIC_INTRPT_MSIX;
ahw->intr_tbl[i].id = i;
ahw->intr_tbl[i].src = 0;
}
err = qlcnic_82xx_config_intrpt(adapter, 1);
if (err)
dev_err(&adapter->pdev->dev,
"Failed to configure Interrupt for %d vector\n",
ahw->num_msix);
return err;
}
return 0;
}
void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
{
if (adapter->flags & QLCNIC_MSIX_ENABLED)
pci_disable_msix(adapter->pdev);
if (adapter->flags & QLCNIC_MSI_ENABLED)
pci_disable_msi(adapter->pdev);
kfree(adapter->msix_entries);
adapter->msix_entries = NULL;
if (adapter->ahw->intr_tbl) {
vfree(adapter->ahw->intr_tbl);
adapter->ahw->intr_tbl = NULL;
}
}
static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
{
if (ahw->pci_base0 != NULL)
iounmap(ahw->pci_base0);
}
static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
{
struct qlcnic_hardware_context *ahw = adapter->ahw;
struct qlcnic_pci_info *pci_info;
int ret;
if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
switch (ahw->port_type) {
case QLCNIC_GBE:
ahw->total_nic_func = QLCNIC_NIU_MAX_GBE_PORTS;
break;
case QLCNIC_XGBE:
ahw->total_nic_func = QLCNIC_NIU_MAX_XG_PORTS;
break;
}
return 0;
}
if (ahw->op_mode == QLCNIC_MGMT_FUNC)
return 0;
pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
if (!pci_info)
return -ENOMEM;
ret = qlcnic_get_pci_info(adapter, pci_info);
kfree(pci_info);
return ret;
}
static bool qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter *adapter)
{
bool ret = false;
if (qlcnic_84xx_check(adapter)) {
ret = true;
} else if (qlcnic_83xx_check(adapter)) {
if (adapter->ahw->extra_capability[0] &
QLCNIC_FW_CAPABILITY_2_PER_PORT_ESWITCH_CFG)
ret = true;
else
ret = false;
}
return ret;
}
int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
{
struct qlcnic_hardware_context *ahw = adapter->ahw;
struct qlcnic_pci_info *pci_info;
int i, id = 0, ret = 0, j = 0;
u16 act_pci_func;
u8 pfn;
pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
if (!pci_info)
return -ENOMEM;
ret = qlcnic_get_pci_info(adapter, pci_info);
if (ret)
goto err_pci_info;
act_pci_func = ahw->total_nic_func;
adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
act_pci_func, GFP_KERNEL);
if (!adapter->npars) {
ret = -ENOMEM;
goto err_pci_info;
}
adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
if (!adapter->eswitch) {
ret = -ENOMEM;
goto err_npars;
}
for (i = 0; i < ahw->max_vnic_func; i++) {
pfn = pci_info[i].id;
if (pfn >= ahw->max_vnic_func) {
ret = QL_STATUS_INVALID_PARAM;
goto err_eswitch;
}
if (!pci_info[i].active ||
(pci_info[i].type != QLCNIC_TYPE_NIC))
continue;
if (qlcnic_port_eswitch_cfg_capability(adapter)) {
if (!qlcnic_83xx_set_port_eswitch_status(adapter, pfn,
&id))
adapter->npars[j].eswitch_status = true;
else
continue;
} else {
adapter->npars[j].eswitch_status = true;
}
adapter->npars[j].pci_func = pfn;
adapter->npars[j].active = (u8)pci_info[i].active;
adapter->npars[j].type = (u8)pci_info[i].type;
adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
memcpy(&adapter->npars[j].mac, &pci_info[i].mac, ETH_ALEN);
j++;
}
/* Update eSwitch status for adapters without per port eSwitch
* configuration capability
*/
if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
}
kfree(pci_info);
return 0;
err_eswitch:
kfree(adapter->eswitch);
adapter->eswitch = NULL;
err_npars:
kfree(adapter->npars);
adapter->npars = NULL;
err_pci_info:
kfree(pci_info);
return ret;
}
static int
qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
{
u8 id;
int ret;
u32 data = QLCNIC_MGMT_FUNC;
struct qlcnic_hardware_context *ahw = adapter->ahw;
ret = qlcnic_api_lock(adapter);
if (ret)
goto err_lock;
id = ahw->pci_func;
data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
qlcnic_api_unlock(adapter);
err_lock:
return ret;
}
static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
const struct pci_device_id *ent)
{
u32 op_mode, priv_level;
/* Determine FW API version */
adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
QLCNIC_FW_API);
/* Find PCI function number */
qlcnic_get_func_no(adapter);
/* Determine function privilege level */
op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
if (op_mode == QLC_DEV_DRV_DEFAULT)
priv_level = QLCNIC_MGMT_FUNC;
else
priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
if (priv_level == QLCNIC_NON_PRIV_FUNC) {
adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
dev_info(&adapter->pdev->dev,
"HAL Version: %d Non Privileged function\n",
adapter->ahw->fw_hal_version);
adapter->nic_ops = &qlcnic_vf_ops;
} else
adapter->nic_ops = &qlcnic_ops;
}
#define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
#define QLCNIC_83XX_BAR0_LENGTH 0x4000
static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
{
switch (dev_id) {
case PCI_DEVICE_ID_QLOGIC_QLE824X:
*bar = QLCNIC_82XX_BAR0_LENGTH;
break;
case PCI_DEVICE_ID_QLOGIC_QLE834X:
case PCI_DEVICE_ID_QLOGIC_QLE844X:
case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
*bar = QLCNIC_83XX_BAR0_LENGTH;
break;
default:
*bar = 0;
}
}
static int qlcnic_setup_pci_map(struct pci_dev *pdev,
struct qlcnic_hardware_context *ahw)
{
u32 offset;
void __iomem *mem_ptr0 = NULL;
unsigned long mem_len, pci_len0 = 0, bar0_len;
/* remap phys address */
mem_len = pci_resource_len(pdev, 0);
qlcnic_get_bar_length(pdev->device, &bar0_len);
if (mem_len >= bar0_len) {
mem_ptr0 = pci_ioremap_bar(pdev, 0);
if (mem_ptr0 == NULL) {
dev_err(&pdev->dev, "failed to map PCI bar 0\n");
return -EIO;
}
pci_len0 = mem_len;
} else {
return -EIO;
}
dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
ahw->pci_base0 = mem_ptr0;
ahw->pci_len0 = pci_len0;
offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
qlcnic_get_ioaddr(ahw, offset);
return 0;
}
static bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
int index)
{
struct pci_dev *pdev = adapter->pdev;
unsigned short subsystem_vendor;
bool ret = true;
subsystem_vendor = pdev->subsystem_vendor;
if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
qlcnic_boards[index].sub_device == pdev->subsystem_device)
ret = true;
else
ret = false;
}
return ret;
}
static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
{
struct pci_dev *pdev = adapter->pdev;
int i, found = 0;
for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
if (qlcnic_boards[i].vendor == pdev->vendor &&
qlcnic_boards[i].device == pdev->device &&
qlcnic_validate_subsystem_id(adapter, i)) {
found = 1;
break;
}
}
if (!found)
sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
else
sprintf(name, "%pM: %s" , adapter->mac_addr,
qlcnic_boards[i].short_name);
}
static void
qlcnic_check_options(struct qlcnic_adapter *adapter)
{
int err;
u32 fw_major, fw_minor, fw_build, prev_fw_version;
struct pci_dev *pdev = adapter->pdev;
struct qlcnic_hardware_context *ahw = adapter->ahw;
struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
prev_fw_version = adapter->fw_version;
fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
err = qlcnic_get_board_info(adapter);
if (err) {
dev_err(&pdev->dev, "Error getting board config info.\n");
return;
}
if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
if (fw_dump->tmpl_hdr == NULL ||
adapter->fw_version > prev_fw_version) {
if (fw_dump->tmpl_hdr)
vfree(fw_dump->tmpl_hdr);
if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
dev_info(&pdev->dev,
"Supports FW dump capability\n");
}
}
dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
if (adapter->ahw->port_type == QLCNIC_XGBE) {
if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
} else {
adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
}
adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
} else if (adapter->ahw->port_type == QLCNIC_GBE) {
adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
}
adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
adapter->num_txd = MAX_CMD_DESCRIPTORS;
adapter->max_rds_rings = MAX_RDS_RINGS;
}
static int
qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
{
struct qlcnic_info nic_info;
int err = 0;
memset(&nic_info, 0, sizeof(struct qlcnic_info));
err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
if (err)
return err;
adapter->ahw->physical_port = (u8)nic_info.phys_port;
adapter->ahw->switch_mode = nic_info.switch_mode;
adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
adapter->ahw->capabilities = nic_info.capabilities;
if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
u32 temp;
temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2, &err);
if (err == -EIO)
return err;
adapter->ahw->extra_capability[0] = temp;
} else {
adapter->ahw->extra_capability[0] = 0;
}
adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
adapter->ahw->max_mtu = nic_info.max_mtu;
if (adapter->ahw->capabilities & BIT_6) {
adapter->flags |= QLCNIC_ESWITCH_ENABLED;
adapter->ahw->nic_mode = QLCNIC_VNIC_MODE;
adapter->max_tx_rings = QLCNIC_MAX_HW_VNIC_TX_RINGS;
adapter->max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;
dev_info(&adapter->pdev->dev, "vNIC mode enabled.\n");
} else {
adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
adapter->max_tx_rings = QLCNIC_MAX_HW_TX_RINGS;
adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS;
adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
}
return err;
}
void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
struct qlcnic_esw_func_cfg *esw_cfg)
{
if (esw_cfg->discard_tagged)
adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
else
adapter->flags |= QLCNIC_TAGGING_ENABLED;
if (esw_cfg->vlan_id) {
adapter->rx_pvid = esw_cfg->vlan_id;
adapter->tx_pvid = esw_cfg->vlan_id;
} else {
adapter->rx_pvid = 0;
adapter->tx_pvid = 0;
}
}
static int
qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
int err;
if (qlcnic_sriov_vf_check(adapter)) {
err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
if (err) {
netdev_err(netdev,
"Cannot add VLAN filter for VLAN id %d, err=%d",
vid, err);
return err;
}
}
set_bit(vid, adapter->vlans);
return 0;
}
static int
qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
int err;
if (qlcnic_sriov_vf_check(adapter)) {
err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
if (err) {
netdev_err(netdev,
"Cannot delete VLAN filter for VLAN id %d, err=%d",
vid, err);
return err;
}
}
qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
clear_bit(vid, adapter->vlans);
return 0;
}
void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
struct qlcnic_esw_func_cfg *esw_cfg)
{
adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
QLCNIC_PROMISC_DISABLED);
if (esw_cfg->mac_anti_spoof)
adapter->flags |= QLCNIC_MACSPOOF;
if (!esw_cfg->mac_override)
adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
if (!esw_cfg->promisc_mode)
adapter->flags |= QLCNIC_PROMISC_DISABLED;
}
int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
{
struct qlcnic_esw_func_cfg esw_cfg;
if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
return 0;
esw_cfg.pci_func = adapter->ahw->pci_func;
if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
return -EIO;
qlcnic_set_vlan_config(adapter, &esw_cfg);
qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
qlcnic_set_netdev_features(adapter, &esw_cfg);
return 0;
}
void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
struct qlcnic_esw_func_cfg *esw_cfg)
{
struct net_device *netdev = adapter->netdev;
if (qlcnic_83xx_check(adapter))
return;
adapter->offload_flags = esw_cfg->offload_flags;
adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
netdev_update_features(netdev);
adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
}
static int
qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
{
u32 op_mode, priv_level;
int err = 0;
err = qlcnic_initialize_nic(adapter);
if (err)
return err;
if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
return 0;
op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
if (op_mode == QLC_DEV_DRV_DEFAULT)
priv_level = QLCNIC_MGMT_FUNC;
else
priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
if (priv_level == QLCNIC_MGMT_FUNC) {
adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
err = qlcnic_init_pci_info(adapter);
if (err)
return err;
/* Set privilege level for other functions */
qlcnic_set_function_modes(adapter);
dev_info(&adapter->pdev->dev,
"HAL Version: %d, Management function\n",
adapter->ahw->fw_hal_version);
} else if (priv_level == QLCNIC_PRIV_FUNC) {
adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
dev_info(&adapter->pdev->dev,
"HAL Version: %d, Privileged function\n",
adapter->ahw->fw_hal_version);
}
} else {
adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
}
adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
return err;
}
int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
{
struct qlcnic_esw_func_cfg esw_cfg;
struct qlcnic_npar_info *npar;
u8 i;
if (adapter->need_fw_reset)
return 0;
for (i = 0; i < adapter->ahw->total_nic_func; i++) {
if (!adapter->npars[i].eswitch_status)
continue;
memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
esw_cfg.pci_func = adapter->npars[i].pci_func;
esw_cfg.mac_override = BIT_0;
esw_cfg.promisc_mode = BIT_0;
if (qlcnic_82xx_check(adapter)) {
esw_cfg.offload_flags = BIT_0;
if (QLCNIC_IS_TSO_CAPABLE(adapter))
esw_cfg.offload_flags |= (BIT_1 | BIT_2);
}
if (qlcnic_config_switch_port(adapter, &esw_cfg))
return -EIO;
npar = &adapter->npars[i];
npar->pvid = esw_cfg.vlan_id;
npar->mac_override = esw_cfg.mac_override;
npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
npar->discard_tagged = esw_cfg.discard_tagged;
npar->promisc_mode = esw_cfg.promisc_mode;
npar->offload_flags = esw_cfg.offload_flags;
}
return 0;
}
static int
qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
struct qlcnic_npar_info *npar, int pci_func)
{
struct qlcnic_esw_func_cfg esw_cfg;
esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
esw_cfg.pci_func = pci_func;
esw_cfg.vlan_id = npar->pvid;
esw_cfg.mac_override = npar->mac_override;
esw_cfg.discard_tagged = npar->discard_tagged;
esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
esw_cfg.offload_flags = npar->offload_flags;
esw_cfg.promisc_mode = npar->promisc_mode;
if (qlcnic_config_switch_port(adapter, &esw_cfg))
return -EIO;
esw_cfg.op_mode = QLCNIC_ADD_VLAN;
if (qlcnic_config_switch_port(adapter, &esw_cfg))
return -EIO;
return 0;
}
int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
{
int i, err;
struct qlcnic_npar_info *npar;
struct qlcnic_info nic_info;
u8 pci_func;
if (qlcnic_82xx_check(adapter))
if (!adapter->need_fw_reset)
return 0;
/* Set the NPAR config data after FW reset */
for (i = 0; i < adapter->ahw->total_nic_func; i++) {
npar = &adapter->npars[i];
pci_func = npar->pci_func;
if (!adapter->npars[i].eswitch_status)
continue;
memset(&nic_info, 0, sizeof(struct qlcnic_info));
err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
if (err)
return err;
nic_info.min_tx_bw = npar->min_bw;
nic_info.max_tx_bw = npar->max_bw;
err = qlcnic_set_nic_info(adapter, &nic_info);
if (err)
return err;
if (npar->enable_pm) {
err = qlcnic_config_port_mirroring(adapter,
npar->dest_npar, 1,
pci_func);
if (err)
return err;
}
err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
if (err)
return err;
}
return 0;
}
static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
{
u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
u32 npar_state;
if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
return 0;
npar_state = QLC_SHARED_REG_RD32(adapter,
QLCNIC_CRB_DEV_NPAR_STATE);
while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
msleep(1000);
npar_state = QLC_SHARED_REG_RD32(adapter,
QLCNIC_CRB_DEV_NPAR_STATE);
}
if (!npar_opt_timeo) {
dev_err(&adapter->pdev->dev,
"Waiting for NPAR state to operational timeout\n");
return -EIO;
}
return 0;
}
static int
qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
{
int err;
if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
return 0;
err = qlcnic_set_default_offload_settings(adapter);
if (err)
return err;
err = qlcnic_reset_npar_config(adapter);
if (err)
return err;
qlcnic_dev_set_npar_ready(adapter);
return err;
}
static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
{
int err;
err = qlcnic_can_start_firmware(adapter);
if (err < 0)
return err;
else if (!err)
goto check_fw_status;
if (qlcnic_load_fw_file)
qlcnic_request_firmware(adapter);
else {
err = qlcnic_check_flash_fw_ver(adapter);
if (err)
goto err_out;
adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
}
err = qlcnic_need_fw_reset(adapter);
if (err == 0)
goto check_fw_status;
err = qlcnic_pinit_from_rom(adapter);
if (err)
goto err_out;
err = qlcnic_load_firmware(adapter);
if (err)
goto err_out;
qlcnic_release_firmware(adapter);
QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
check_fw_status:
err = qlcnic_check_fw_status(adapter);
if (err)
goto err_out;
QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
qlcnic_idc_debug_info(adapter, 1);
err = qlcnic_check_eswitch_mode(adapter);
if (err) {
dev_err(&adapter->pdev->dev,
"Memory allocation failed for eswitch\n");
goto err_out;
}
err = qlcnic_set_mgmt_operations(adapter);
if (err)
goto err_out;
qlcnic_check_options(adapter);
adapter->need_fw_reset = 0;
qlcnic_release_firmware(adapter);
return 0;
err_out:
QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
dev_err(&adapter->pdev->dev, "Device state set to failed\n");
qlcnic_release_firmware(adapter);
return err;
}
static int
qlcnic_request_irq(struct qlcnic_adapter *adapter)
{
irq_handler_t handler;
struct qlcnic_host_sds_ring *sds_ring;
struct qlcnic_host_tx_ring *tx_ring;
int err, ring, num_sds_rings;
unsigned long flags = 0;
struct net_device *netdev = adapter->netdev;
struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
if (qlcnic_82xx_check(adapter))
handler = qlcnic_tmp_intr;
else
handler = qlcnic_83xx_tmp_intr;
if (!QLCNIC_IS_MSI_FAMILY(adapter))
flags |= IRQF_SHARED;
} else {
if (adapter->flags & QLCNIC_MSIX_ENABLED)
handler = qlcnic_msix_intr;
else if (adapter->flags & QLCNIC_MSI_ENABLED)
handler = qlcnic_msi_intr;
else {
flags |= IRQF_SHARED;
if (qlcnic_82xx_check(adapter))
handler = qlcnic_intr;
else
handler = qlcnic_83xx_intr;
}
}
adapter->irq = netdev->irq;
if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
if (qlcnic_82xx_check(adapter) ||
(qlcnic_83xx_check(adapter) &&
(adapter->flags & QLCNIC_MSIX_ENABLED))) {
num_sds_rings = adapter->drv_sds_rings;
for (ring = 0; ring < num_sds_rings; ring++) {
sds_ring = &recv_ctx->sds_rings[ring];
if (qlcnic_82xx_check(adapter) &&
!qlcnic_check_multi_tx(adapter) &&
(ring == (num_sds_rings - 1))) {
if (!(adapter->flags &
QLCNIC_MSIX_ENABLED))
snprintf(sds_ring->name,
sizeof(sds_ring->name),
"qlcnic");
else
snprintf(sds_ring->name,
sizeof(sds_ring->name),
"%s-tx-0-rx-%d",
netdev->name, ring);
} else {
snprintf(sds_ring->name,
sizeof(sds_ring->name),
"%s-rx-%d",
netdev->name, ring);
}
err = request_irq(sds_ring->irq, handler, flags,
sds_ring->name, sds_ring);
if (err)
return err;
}
}
if ((qlcnic_82xx_check(adapter) &&
qlcnic_check_multi_tx(adapter)) ||
(qlcnic_83xx_check(adapter) &&
(adapter->flags & QLCNIC_MSIX_ENABLED) &&
!(adapter->flags & QLCNIC_TX_INTR_SHARED))) {
handler = qlcnic_msix_tx_intr;
for (ring = 0; ring < adapter->drv_tx_rings;
ring++) {
tx_ring = &adapter->tx_ring[ring];
snprintf(tx_ring->name, sizeof(tx_ring->name),
"%s-tx-%d", netdev->name, ring);
err = request_irq(tx_ring->irq, handler, flags,
tx_ring->name, tx_ring);
if (err)
return err;
}
}
}
return 0;
}
static void
qlcnic_free_irq(struct qlcnic_adapter *adapter)
{
int ring;
struct qlcnic_host_sds_ring *sds_ring;
struct qlcnic_host_tx_ring *tx_ring;
struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
if (qlcnic_82xx_check(adapter) ||
(qlcnic_83xx_check(adapter) &&
(adapter->flags & QLCNIC_MSIX_ENABLED))) {
for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
sds_ring = &recv_ctx->sds_rings[ring];
free_irq(sds_ring->irq, sds_ring);
}
}
if ((qlcnic_83xx_check(adapter) &&
!(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
(qlcnic_82xx_check(adapter) &&
qlcnic_check_multi_tx(adapter))) {
for (ring = 0; ring < adapter->drv_tx_rings;
ring++) {
tx_ring = &adapter->tx_ring[ring];
if (tx_ring->irq)
free_irq(tx_ring->irq, tx_ring);
}
}
}
}
static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
{
u32 capab = 0;
if (qlcnic_82xx_check(adapter)) {
if (adapter->ahw->extra_capability[0] &
QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
} else {
capab = adapter->ahw->capabilities;
if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
}
}
static int qlcnic_config_def_intr_coalesce(struct qlcnic_adapter *adapter)
{
struct qlcnic_hardware_context *ahw = adapter->ahw;
int err;
/* Initialize interrupt coalesce parameters */
ahw->coal.flag = QLCNIC_INTR_DEFAULT;
if (qlcnic_83xx_check(adapter)) {
ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
err = qlcnic_83xx_set_rx_tx_intr_coal(adapter);
} else {
ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
err = qlcnic_82xx_set_rx_coalesce(adapter);
}
return err;
}
int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
{
int ring;
struct qlcnic_host_rds_ring *rds_ring;
if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
return -EIO;
if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
return 0;
if (qlcnic_set_eswitch_port_config(adapter))
return -EIO;
qlcnic_get_lro_mss_capability(adapter);
if (qlcnic_fw_create_ctx(adapter))
return -EIO;
for (ring = 0; ring < adapter->max_rds_rings; ring++) {
rds_ring = &adapter->recv_ctx->rds_rings[ring];
qlcnic_post_rx_buffers(adapter, rds_ring, ring);
}
qlcnic_set_multi(netdev);
qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
adapter->ahw->linkup = 0;
if (adapter->drv_sds_rings > 1)
qlcnic_config_rss(adapter, 1);
qlcnic_config_def_intr_coalesce(adapter);
if (netdev->features & NETIF_F_LRO)
qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
set_bit(__QLCNIC_DEV_UP, &adapter->state);
qlcnic_napi_enable(adapter);
qlcnic_linkevent_request(adapter, 1);
adapter->ahw->reset_context = 0;
netif_tx_start_all_queues(netdev);
return 0;
}
int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
{
int err = 0;
rtnl_lock();
if (netif_running(netdev))
err = __qlcnic_up(adapter, netdev);
rtnl_unlock();
return err;
}
void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
{
int ring;
if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
return;
if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
return;
if (qlcnic_sriov_vf_check(adapter))
qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
smp_mb();
netif_carrier_off(netdev);
adapter->ahw->linkup = 0;
netif_tx_disable(netdev);
qlcnic_free_mac_list(adapter);
if (adapter->fhash.fnum)
qlcnic_delete_lb_filters(adapter);
qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
qlcnic_napi_disable(adapter);
qlcnic_fw_destroy_ctx(adapter);
adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
qlcnic_reset_rx_buffers_list(adapter);
for (ring = 0; ring < adapter->drv_tx_rings; ring++)
qlcnic_release_tx_buffers(adapter, &adapter->tx_ring[ring]);
}
/* Usage: During suspend and firmware recovery module */
void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
{
rtnl_lock();
if (netif_running(netdev))
__qlcnic_down(adapter, netdev);
rtnl_unlock();
}
int
qlcnic_attach(struct qlcnic_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
struct pci_dev *pdev = adapter->pdev;
int err;
if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
return 0;
err = qlcnic_napi_add(adapter, netdev);
if (err)
return err;
err = qlcnic_alloc_sw_resources(adapter);
if (err) {
dev_err(&pdev->dev, "Error in setting sw resources\n");
goto err_out_napi_del;
}
err = qlcnic_alloc_hw_resources(adapter);
if (err) {
dev_err(&pdev->dev, "Error in setting hw resources\n");
goto err_out_free_sw;
}
err = qlcnic_request_irq(adapter);
if (err) {
dev_err(&pdev->dev, "failed to setup interrupt\n");
goto err_out_free_hw;
}
qlcnic_create_sysfs_entries(adapter);
#ifdef CONFIG_QLCNIC_VXLAN
if (qlcnic_encap_rx_offload(adapter))
vxlan_get_rx_port(netdev);
#endif
adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
return 0;
err_out_free_hw:
qlcnic_free_hw_resources(adapter);
err_out_free_sw:
qlcnic_free_sw_resources(adapter);
err_out_napi_del:
qlcnic_napi_del(adapter);
return err;
}
void qlcnic_detach(struct qlcnic_adapter *adapter)
{
if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
return;
qlcnic_remove_sysfs_entries(adapter);
qlcnic_free_hw_resources(adapter);
qlcnic_release_rx_buffers(adapter);
qlcnic_free_irq(adapter);
qlcnic_napi_del(adapter);
qlcnic_free_sw_resources(adapter);
adapter->is_up = 0;
}
void qlcnic_diag_free_res(struct net_device *netdev, int drv_sds_rings)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
struct qlcnic_host_sds_ring *sds_ring;
int drv_tx_rings = adapter->drv_tx_rings;
int ring;
clear_bit(__QLCNIC_DEV_UP, &adapter->state);
if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
sds_ring = &adapter->recv_ctx->sds_rings[ring];
qlcnic_disable_sds_intr(adapter, sds_ring);
}
}
qlcnic_fw_destroy_ctx(adapter);
qlcnic_detach(adapter);
adapter->ahw->diag_test = 0;
adapter->drv_sds_rings = drv_sds_rings;
adapter->drv_tx_rings = drv_tx_rings;
if (qlcnic_attach(adapter))
goto out;
if (netif_running(netdev))
__qlcnic_up(adapter, netdev);
out:
netif_device_attach(netdev);
}
static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
{
int err = 0;
adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
GFP_KERNEL);
if (!adapter->recv_ctx) {
err = -ENOMEM;
goto err_out;
}
/* clear stats */
memset(&adapter->stats, 0, sizeof(adapter->stats));
err_out:
return err;
}
static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
{
kfree(adapter->recv_ctx);
adapter->recv_ctx = NULL;
if (adapter->ahw->fw_dump.tmpl_hdr) {
vfree(adapter->ahw->fw_dump.tmpl_hdr);
adapter->ahw->fw_dump.tmpl_hdr = NULL;
}
kfree(adapter->ahw->reset.buff);
adapter->ahw->fw_dump.tmpl_hdr = NULL;
}
int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
struct qlcnic_host_sds_ring *sds_ring;
struct qlcnic_host_rds_ring *rds_ring;
int ring;
int ret;
netif_device_detach(netdev);
if (netif_running(netdev))
__qlcnic_down(adapter, netdev);
qlcnic_detach(adapter);
adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
adapter->ahw->diag_test = test;
adapter->ahw->linkup = 0;
ret = qlcnic_attach(adapter);
if (ret) {
netif_device_attach(netdev);
return ret;
}
ret = qlcnic_fw_create_ctx(adapter);
if (ret) {
qlcnic_detach(adapter);
netif_device_attach(netdev);
return ret;
}
for (ring = 0; ring < adapter->max_rds_rings; ring++) {
rds_ring = &adapter->recv_ctx->rds_rings[ring];
qlcnic_post_rx_buffers(adapter, rds_ring, ring);
}
if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
sds_ring = &adapter->recv_ctx->sds_rings[ring];
qlcnic_enable_sds_intr(adapter, sds_ring);
}
}
if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
adapter->ahw->loopback_state = 0;
qlcnic_linkevent_request(adapter, 1);
}
set_bit(__QLCNIC_DEV_UP, &adapter->state);
return 0;
}
/* Reset context in hardware only */
static int
qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
return -EBUSY;
netif_device_detach(netdev);
qlcnic_down(adapter, netdev);
qlcnic_up(adapter, netdev);
netif_device_attach(netdev);
clear_bit(__QLCNIC_RESETTING, &adapter->state);
netdev_info(adapter->netdev, "%s: soft reset complete\n", __func__);
return 0;
}
int
qlcnic_reset_context(struct qlcnic_adapter *adapter)
{
int err = 0;
struct net_device *netdev = adapter->netdev;
if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
return -EBUSY;
if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
netif_device_detach(netdev);
if (netif_running(netdev))
__qlcnic_down(adapter, netdev);
qlcnic_detach(adapter);
if (netif_running(netdev)) {
err = qlcnic_attach(adapter);
if (!err) {
__qlcnic_up(adapter, netdev);
qlcnic_restore_indev_addr(netdev, NETDEV_UP);
}
}
netif_device_attach(netdev);
}
clear_bit(__QLCNIC_RESETTING, &adapter->state);
return err;
}
static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
{
struct qlcnic_hardware_context *ahw = adapter->ahw;
u16 act_pci_fn = ahw->total_nic_func;
u16 count;
ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
if (act_pci_fn <= 2)
count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
act_pci_fn;
else
count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
act_pci_fn;
ahw->max_uc_count = count;
}
int
qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
int pci_using_dac)
{
int err;
struct pci_dev *pdev = adapter->pdev;
adapter->rx_csum = 1;
adapter->ahw->mc_enabled = 0;
qlcnic_set_mac_filter_count(adapter);
netdev->netdev_ops = &qlcnic_netdev_ops;
netdev->watchdog_timeo = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
qlcnic_change_mtu(netdev, netdev->mtu);
if (qlcnic_sriov_vf_check(adapter))
SET_ETHTOOL_OPS(netdev, &qlcnic_sriov_vf_ethtool_ops);
else
SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
NETIF_F_IPV6_CSUM | NETIF_F_GRO |
NETIF_F_HW_VLAN_CTAG_RX);
netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
NETIF_F_IPV6_CSUM);
if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
}
if (pci_using_dac) {
netdev->features |= NETIF_F_HIGHDMA;
netdev->vlan_features |= NETIF_F_HIGHDMA;
}
if (qlcnic_vlan_tx_check(adapter))
netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
if (qlcnic_sriov_vf_check(adapter))
netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
netdev->features |= NETIF_F_LRO;
if (qlcnic_encap_tx_offload(adapter)) {
netdev->features |= NETIF_F_GSO_UDP_TUNNEL;
/* encapsulation Tx offload supported by Adapter */
netdev->hw_enc_features = NETIF_F_IP_CSUM |
NETIF_F_GSO_UDP_TUNNEL |
NETIF_F_TSO |
NETIF_F_TSO6;
}
if (qlcnic_encap_rx_offload(adapter))
netdev->hw_enc_features |= NETIF_F_RXCSUM;
netdev->hw_features = netdev->features;
netdev->priv_flags |= IFF_UNICAST_FLT;
netdev->irq = adapter->msix_entries[0].vector;
err = qlcnic_set_real_num_queues(adapter, netdev);
if (err)
return err;
err = register_netdev(netdev);
if (err) {
dev_err(&pdev->dev, "failed to register net device\n");
return err;
}
qlcnic_dcb_init_dcbnl_ops(adapter->dcb);
return 0;
}
static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
{
if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
*pci_using_dac = 1;
else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
*pci_using_dac = 0;
else {
dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
return -EIO;
}
return 0;
}
void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
{
int ring;
struct qlcnic_host_tx_ring *tx_ring;
for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
tx_ring = &adapter->tx_ring[ring];
if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
vfree(tx_ring->cmd_buf_arr);
tx_ring->cmd_buf_arr = NULL;
}
}
if (adapter->tx_ring != NULL)
kfree(adapter->tx_ring);
}
int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
struct net_device *netdev)
{
int ring, vector, index;
struct qlcnic_host_tx_ring *tx_ring;
struct qlcnic_cmd_buffer *cmd_buf_arr;
tx_ring = kcalloc(adapter->drv_tx_rings,
sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
if (tx_ring == NULL)
return -ENOMEM;
adapter->tx_ring = tx_ring;
for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
tx_ring = &adapter->tx_ring[ring];
tx_ring->num_desc = adapter->num_txd;
tx_ring->txq = netdev_get_tx_queue(netdev, ring);
cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
if (cmd_buf_arr == NULL) {
qlcnic_free_tx_rings(adapter);
return -ENOMEM;
}
memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
tx_ring->cmd_buf_arr = cmd_buf_arr;
spin_lock_init(&tx_ring->tx_clean_lock);
}
if (qlcnic_83xx_check(adapter) ||
(qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter))) {
for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
tx_ring = &adapter->tx_ring[ring];
tx_ring->adapter = adapter;
if (adapter->flags & QLCNIC_MSIX_ENABLED) {
index = adapter->drv_sds_rings + ring;
vector = adapter->msix_entries[index].vector;
tx_ring->irq = vector;
}
}
}
return 0;
}
void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
{
struct qlcnic_hardware_context *ahw = adapter->ahw;
u32 fw_cmd = 0;
if (qlcnic_82xx_check(adapter))
fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
else if (qlcnic_83xx_check(adapter))
fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER)
qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
}
static int
qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
struct net_device *netdev = NULL;
struct qlcnic_adapter *adapter = NULL;
struct qlcnic_hardware_context *ahw;
int err, pci_using_dac = -1;
char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
if (pdev->is_virtfn)
return -ENODEV;
err = pci_enable_device(pdev);
if (err)
return err;
if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
err = -ENODEV;
goto err_out_disable_pdev;
}
err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
if (err)
goto err_out_disable_pdev;
err = pci_request_regions(pdev, qlcnic_driver_name);
if (err)
goto err_out_disable_pdev;
pci_set_master(pdev);
pci_enable_pcie_error_reporting(pdev);
ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
if (!ahw) {
err = -ENOMEM;
goto err_out_free_res;
}
switch (ent->device) {
case PCI_DEVICE_ID_QLOGIC_QLE824X:
ahw->hw_ops = &qlcnic_hw_ops;
ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
break;
case PCI_DEVICE_ID_QLOGIC_QLE834X:
case PCI_DEVICE_ID_QLOGIC_QLE844X:
qlcnic_83xx_register_map(ahw);
break;
case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
qlcnic_sriov_vf_register_map(ahw);
break;
default:
goto err_out_free_hw_res;
}
err = qlcnic_setup_pci_map(pdev, ahw);
if (err)
goto err_out_free_hw_res;
netdev = alloc_etherdev_mq(sizeof(struct qlcnic_adapter),
QLCNIC_MAX_TX_RINGS);
if (!netdev) {
err = -ENOMEM;
goto err_out_iounmap;
}
SET_NETDEV_DEV(netdev, &pdev->dev);
adapter = netdev_priv(netdev);
adapter->netdev = netdev;
adapter->pdev = pdev;
adapter->ahw = ahw;
adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
if (adapter->qlcnic_wq == NULL) {
err = -ENOMEM;
dev_err(&pdev->dev, "Failed to create workqueue\n");
goto err_out_free_netdev;
}
err = qlcnic_alloc_adapter_resources(adapter);
if (err)
goto err_out_free_wq;
adapter->dev_rst_time = jiffies;
ahw->revision_id = pdev->revision;
ahw->max_vnic_func = qlcnic_get_vnic_func_count(adapter);
if (qlcnic_mac_learn == FDB_MAC_LEARN)
adapter->fdb_mac_learn = true;
else if (qlcnic_mac_learn == DRV_MAC_LEARN)
adapter->drv_mac_learn = true;
rwlock_init(&adapter->ahw->crb_lock);
mutex_init(&adapter->ahw->mem_lock);
INIT_LIST_HEAD(&adapter->mac_list);
qlcnic_register_dcb(adapter);
if (qlcnic_82xx_check(adapter)) {
qlcnic_check_vf(adapter, ent);
adapter->portnum = adapter->ahw->pci_func;
err = qlcnic_start_firmware(adapter);
if (err) {
dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
"\t\tIf reboot doesn't help, try flashing the card\n");
goto err_out_maintenance_mode;
}
/* compute and set default and max tx/sds rings */
if (adapter->ahw->msix_supported) {
if (qlcnic_check_multi_tx_capability(adapter) == 1)
qlcnic_set_tx_ring_count(adapter,
QLCNIC_SINGLE_RING);
else
qlcnic_set_tx_ring_count(adapter,
QLCNIC_DEF_TX_RINGS);
qlcnic_set_sds_ring_count(adapter,
QLCNIC_DEF_SDS_RINGS);
} else {
qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
}
err = qlcnic_setup_idc_param(adapter);
if (err)
goto err_out_free_hw;
adapter->flags |= QLCNIC_NEED_FLR;
} else if (qlcnic_83xx_check(adapter)) {
qlcnic_83xx_check_vf(adapter, ent);
adapter->portnum = adapter->ahw->pci_func;
err = qlcnic_83xx_init(adapter, pci_using_dac);
if (err) {
switch (err) {
case -ENOTRECOVERABLE:
dev_err(&pdev->dev, "Adapter initialization failed due to a faulty hardware\n");
dev_err(&pdev->dev, "Please replace the adapter with new one and return the faulty adapter for repair\n");
goto err_out_free_hw;
case -ENOMEM:
dev_err(&pdev->dev, "Adapter initialization failed. Please reboot\n");
goto err_out_free_hw;
default:
dev_err(&pdev->dev, "Adapter initialization failed. A reboot may be required to recover from this failure\n");
dev_err(&pdev->dev, "If reboot does not help to recover from this failure, try a flash update of the adapter\n");
goto err_out_maintenance_mode;
}
}
if (qlcnic_sriov_vf_check(adapter))
return 0;
} else {
dev_err(&pdev->dev,
"%s: failed. Please Reboot\n", __func__);
goto err_out_free_hw;
}
qlcnic_dcb_enable(adapter->dcb);
if (qlcnic_read_mac_addr(adapter))
dev_warn(&pdev->dev, "failed to read mac addr\n");
qlcnic_read_phys_port_id(adapter);
if (adapter->portnum == 0) {
qlcnic_get_board_name(adapter, board_name);
pr_info("%s: %s Board Chip rev 0x%x\n",
module_name(THIS_MODULE),
board_name, adapter->ahw->revision_id);
}
if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
!!qlcnic_use_msi)
dev_warn(&pdev->dev,
"Device does not support MSI interrupts\n");
if (qlcnic_82xx_check(adapter)) {
err = qlcnic_setup_intr(adapter);
if (err) {
dev_err(&pdev->dev, "Failed to setup interrupt\n");
goto err_out_disable_msi;
}
}
err = qlcnic_get_act_pci_func(adapter);
if (err)
goto err_out_disable_mbx_intr;
err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
if (err)
goto err_out_disable_mbx_intr;
if (adapter->portnum == 0)
qlcnic_set_drv_version(adapter);
pci_set_drvdata(pdev, adapter);
if (qlcnic_82xx_check(adapter))
qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
FW_POLL_DELAY);
switch (adapter->ahw->port_type) {
case QLCNIC_GBE:
dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
adapter->netdev->name);
break;
case QLCNIC_XGBE:
dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
adapter->netdev->name);
break;
}
if (adapter->drv_mac_learn)
qlcnic_alloc_lb_filters_mem(adapter);
qlcnic_add_sysfs(adapter);
return 0;
err_out_disable_mbx_intr:
if (qlcnic_83xx_check(adapter))
qlcnic_83xx_free_mbx_intr(adapter);
err_out_disable_msi:
qlcnic_teardown_intr(adapter);
qlcnic_cancel_idc_work(adapter);
qlcnic_clr_all_drv_state(adapter, 0);
err_out_free_hw:
qlcnic_free_adapter_resources(adapter);
err_out_free_wq:
destroy_workqueue(adapter->qlcnic_wq);
err_out_free_netdev:
free_netdev(netdev);
err_out_iounmap:
qlcnic_cleanup_pci_map(ahw);
err_out_free_hw_res:
kfree(ahw);
err_out_free_res:
pci_release_regions(pdev);
err_out_disable_pdev:
pci_disable_device(pdev);
return err;
err_out_maintenance_mode:
set_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state);
netdev->netdev_ops = &qlcnic_netdev_failed_ops;
SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_failed_ops);
ahw->port_type = QLCNIC_XGBE;
if (qlcnic_83xx_check(adapter))
adapter->tgt_status_reg = NULL;
else
ahw->board_type = QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS;
err = register_netdev(netdev);
if (err) {
dev_err(&pdev->dev, "Failed to register net device\n");
qlcnic_clr_all_drv_state(adapter, 0);
goto err_out_free_hw;
}
pci_set_drvdata(pdev, adapter);
qlcnic_add_sysfs(adapter);
return 0;
}
static void qlcnic_remove(struct pci_dev *pdev)
{
struct qlcnic_adapter *adapter;
struct net_device *netdev;
struct qlcnic_hardware_context *ahw;
adapter = pci_get_drvdata(pdev);
if (adapter == NULL)
return;
netdev = adapter->netdev;
qlcnic_sriov_pf_disable(adapter);
qlcnic_cancel_idc_work(adapter);
ahw = adapter->ahw;
unregister_netdev(netdev);
qlcnic_sriov_cleanup(adapter);
if (qlcnic_83xx_check(adapter)) {
qlcnic_83xx_initialize_nic(adapter, 0);
cancel_delayed_work_sync(&adapter->idc_aen_work);
qlcnic_83xx_free_mbx_intr(adapter);
qlcnic_83xx_detach_mailbox_work(adapter);
qlcnic_83xx_free_mailbox(ahw->mailbox);
kfree(ahw->fw_info);
}
qlcnic_dcb_free(adapter->dcb);
qlcnic_detach(adapter);
if (adapter->npars != NULL)
kfree(adapter->npars);
if (adapter->eswitch != NULL)
kfree(adapter->eswitch);
if (qlcnic_82xx_check(adapter))
qlcnic_clr_all_drv_state(adapter, 0);
clear_bit(__QLCNIC_RESETTING, &adapter->state);
qlcnic_free_lb_filters_mem(adapter);
qlcnic_teardown_intr(adapter);
qlcnic_remove_sysfs(adapter);
qlcnic_cleanup_pci_map(adapter->ahw);
qlcnic_release_firmware(adapter);
pci_disable_pcie_error_reporting(pdev);
pci_release_regions(pdev);
pci_disable_device(pdev);
if (adapter->qlcnic_wq) {
destroy_workqueue(adapter->qlcnic_wq);
adapter->qlcnic_wq = NULL;
}
qlcnic_free_adapter_resources(adapter);
kfree(ahw);
free_netdev(netdev);
}
static void qlcnic_shutdown(struct pci_dev *pdev)
{
if (__qlcnic_shutdown(pdev))
return;
pci_disable_device(pdev);
}
#ifdef CONFIG_PM
static int qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
{
int retval;
retval = __qlcnic_shutdown(pdev);
if (retval)
return retval;
pci_set_power_state(pdev, pci_choose_state(pdev, state));
return 0;
}
static int qlcnic_resume(struct pci_dev *pdev)
{
struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
int err;
err = pci_enable_device(pdev);
if (err)
return err;
pci_set_power_state(pdev, PCI_D0);
pci_set_master(pdev);
pci_restore_state(pdev);
return __qlcnic_resume(adapter);
}
#endif
static int qlcnic_open(struct net_device *netdev)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
int err;
if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
netdev_err(netdev, "%s: Device is in non-operational state\n",
__func__);
return -EIO;
}
netif_carrier_off(netdev);
err = qlcnic_attach(adapter);
if (err)
return err;
err = __qlcnic_up(adapter, netdev);
if (err)
qlcnic_detach(adapter);
return err;
}
/*
* qlcnic_close - Disables a network interface entry point
*/
static int qlcnic_close(struct net_device *netdev)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
__qlcnic_down(adapter, netdev);
return 0;
}
void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
{
void *head;
int i;
struct net_device *netdev = adapter->netdev;
u32 filter_size = 0;
u16 act_pci_func = 0;
if (adapter->fhash.fmax && adapter->fhash.fhead)
return;
act_pci_func = adapter->ahw->total_nic_func;
spin_lock_init(&adapter->mac_learn_lock);
spin_lock_init(&adapter->rx_mac_learn_lock);
if (qlcnic_82xx_check(adapter)) {
filter_size = QLCNIC_LB_MAX_FILTERS;
adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
} else {
filter_size = QLC_83XX_LB_MAX_FILTERS;
adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
}
head = kcalloc(adapter->fhash.fbucket_size,
sizeof(struct hlist_head), GFP_ATOMIC);
if (!head)
return;
adapter->fhash.fmax = (filter_size / act_pci_func);
adapter->fhash.fhead = head;
netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
act_pci_func, adapter->fhash.fmax);
for (i = 0; i < adapter->fhash.fbucket_size; i++)
INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
head = kcalloc(adapter->rx_fhash.fbucket_size,
sizeof(struct hlist_head), GFP_ATOMIC);
if (!head)
return;
adapter->rx_fhash.fmax = (filter_size / act_pci_func);
adapter->rx_fhash.fhead = head;
for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
}
static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
{
if (adapter->fhash.fmax && adapter->fhash.fhead)
kfree(adapter->fhash.fhead);
adapter->fhash.fhead = NULL;
adapter->fhash.fmax = 0;
if (adapter->rx_fhash.fmax && adapter->rx_fhash.fhead)
kfree(adapter->rx_fhash.fhead);
adapter->rx_fhash.fmax = 0;
adapter->rx_fhash.fhead = NULL;
}
int qlcnic_check_temp(struct qlcnic_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
u32 temp_state, temp_val, temp = 0;
int rv = 0;
if (qlcnic_83xx_check(adapter))
temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
if (qlcnic_82xx_check(adapter))
temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
temp_state = qlcnic_get_temp_state(temp);
temp_val = qlcnic_get_temp_val(temp);
if (temp_state == QLCNIC_TEMP_PANIC) {
dev_err(&netdev->dev,
"Device temperature %d degrees C exceeds"
" maximum allowed. Hardware has been shut down.\n",
temp_val);
rv = 1;
} else if (temp_state == QLCNIC_TEMP_WARN) {
if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
dev_err(&netdev->dev,
"Device temperature %d degrees C "
"exceeds operating range."
" Immediate action needed.\n",
temp_val);
}
} else {
if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
dev_info(&netdev->dev,
"Device temperature is now %d degrees C"
" in normal range.\n", temp_val);
}
}
adapter->ahw->temp = temp_state;
return rv;
}
static inline void dump_tx_ring_desc(struct qlcnic_host_tx_ring *tx_ring)
{
int i;
struct cmd_desc_type0 *tx_desc_info;
for (i = 0; i < tx_ring->num_desc; i++) {
tx_desc_info = &tx_ring->desc_head[i];
pr_info("TX Desc: %d\n", i);
print_hex_dump(KERN_INFO, "TX: ", DUMP_PREFIX_OFFSET, 16, 1,
&tx_ring->desc_head[i],
sizeof(struct cmd_desc_type0), true);
}
}
static void qlcnic_dump_tx_rings(struct qlcnic_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
struct qlcnic_host_tx_ring *tx_ring;
int ring;
if (!netdev || !netif_running(netdev))
return;
for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
tx_ring = &adapter->tx_ring[ring];
netdev_info(netdev, "Tx ring=%d Context Id=0x%x\n",
ring, tx_ring->ctx_id);
netdev_info(netdev,
"xmit_finished=%llu, xmit_called=%llu, xmit_on=%llu, xmit_off=%llu\n",
tx_ring->tx_stats.xmit_finished,
tx_ring->tx_stats.xmit_called,
tx_ring->tx_stats.xmit_on,
tx_ring->tx_stats.xmit_off);
netdev_info(netdev,
"crb_intr_mask=%d, hw_producer=%d, sw_producer=%d sw_consumer=%d, hw_consumer=%d\n",
readl(tx_ring->crb_intr_mask),
readl(tx_ring->crb_cmd_producer),
tx_ring->producer, tx_ring->sw_consumer,
le32_to_cpu(*(tx_ring->hw_consumer)));
netdev_info(netdev, "Total desc=%d, Available desc=%d\n",
tx_ring->num_desc, qlcnic_tx_avail(tx_ring));
if (netif_msg_tx_done(adapter->ahw))
dump_tx_ring_desc(tx_ring);
}
}
static void qlcnic_tx_timeout(struct net_device *netdev)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
if (test_bit(__QLCNIC_RESETTING, &adapter->state))
return;
if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS) {
netdev_info(netdev, "Tx timeout, reset the adapter.\n");
if (qlcnic_82xx_check(adapter))
adapter->need_fw_reset = 1;
else if (qlcnic_83xx_check(adapter))
qlcnic_83xx_idc_request_reset(adapter,
QLCNIC_FORCE_FW_DUMP_KEY);
} else {
netdev_info(netdev, "Tx timeout, reset adapter context.\n");
qlcnic_dump_tx_rings(adapter);
adapter->ahw->reset_context = 1;
}
}
static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
struct net_device_stats *stats = &netdev->stats;
if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
qlcnic_update_stats(adapter);
stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
stats->tx_packets = adapter->stats.xmitfinished;
stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
stats->tx_bytes = adapter->stats.txbytes;
stats->rx_dropped = adapter->stats.rxdropped;
stats->tx_dropped = adapter->stats.txdropped;
return stats;
}
static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
{
u32 status;
status = readl(adapter->isr_int_vec);
if (!(status & adapter->ahw->int_vec_bit))
return IRQ_NONE;
/* check interrupt state machine, to be sure */
status = readl(adapter->crb_int_state_reg);
if (!ISR_LEGACY_INT_TRIGGERED(status))
return IRQ_NONE;
writel(0xffffffff, adapter->tgt_status_reg);
/* read twice to ensure write is flushed */
readl(adapter->isr_int_vec);
readl(adapter->isr_int_vec);
return IRQ_HANDLED;
}
static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
{
struct qlcnic_host_sds_ring *sds_ring = data;
struct qlcnic_adapter *adapter = sds_ring->adapter;
if (adapter->flags & QLCNIC_MSIX_ENABLED)
goto done;
else if (adapter->flags & QLCNIC_MSI_ENABLED) {
writel(0xffffffff, adapter->tgt_status_reg);
goto done;
}
if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
return IRQ_NONE;
done:
adapter->ahw->diag_cnt++;
qlcnic_enable_sds_intr(adapter, sds_ring);
return IRQ_HANDLED;
}
static irqreturn_t qlcnic_intr(int irq, void *data)
{
struct qlcnic_host_sds_ring *sds_ring = data;
struct qlcnic_adapter *adapter = sds_ring->adapter;
if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
return IRQ_NONE;
napi_schedule(&sds_ring->napi);
return IRQ_HANDLED;
}
static irqreturn_t qlcnic_msi_intr(int irq, void *data)
{
struct qlcnic_host_sds_ring *sds_ring = data;
struct qlcnic_adapter *adapter = sds_ring->adapter;
/* clear interrupt */
writel(0xffffffff, adapter->tgt_status_reg);
napi_schedule(&sds_ring->napi);
return IRQ_HANDLED;
}
static irqreturn_t qlcnic_msix_intr(int irq, void *data)
{
struct qlcnic_host_sds_ring *sds_ring = data;
napi_schedule(&sds_ring->napi);
return IRQ_HANDLED;
}
static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
{
struct qlcnic_host_tx_ring *tx_ring = data;
napi_schedule(&tx_ring->napi);
return IRQ_HANDLED;
}
#ifdef CONFIG_NET_POLL_CONTROLLER
static void qlcnic_poll_controller(struct net_device *netdev)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
struct qlcnic_host_sds_ring *sds_ring;
struct qlcnic_recv_context *recv_ctx;
struct qlcnic_host_tx_ring *tx_ring;
int ring;
if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
return;
recv_ctx = adapter->recv_ctx;
for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
sds_ring = &recv_ctx->sds_rings[ring];
qlcnic_disable_sds_intr(adapter, sds_ring);
napi_schedule(&sds_ring->napi);
}
if (adapter->flags & QLCNIC_MSIX_ENABLED) {
/* Only Multi-Tx queue capable devices need to
* schedule NAPI for TX rings
*/
if ((qlcnic_83xx_check(adapter) &&
(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
(qlcnic_82xx_check(adapter) &&
!qlcnic_check_multi_tx(adapter)))
return;
for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
tx_ring = &adapter->tx_ring[ring];
qlcnic_disable_tx_intr(adapter, tx_ring);
napi_schedule(&tx_ring->napi);
}
}
}
#endif
static void
qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
{
u32 val;
val = adapter->portnum & 0xf;
val |= encoding << 7;
val |= (jiffies - adapter->dev_rst_time) << 8;
QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
adapter->dev_rst_time = jiffies;
}
static int
qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
{
u32 val;
WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
state != QLCNIC_DEV_NEED_QUISCENT);
if (qlcnic_api_lock(adapter))
return -EIO;
val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
if (state == QLCNIC_DEV_NEED_RESET)
QLC_DEV_SET_RST_RDY(val, adapter->portnum);
else if (state == QLCNIC_DEV_NEED_QUISCENT)
QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
qlcnic_api_unlock(adapter);
return 0;
}
static int
qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
{
u32 val;
if (qlcnic_api_lock(adapter))
return -EBUSY;
val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
qlcnic_api_unlock(adapter);
return 0;
}
void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
{
u32 val;
if (qlcnic_api_lock(adapter))
goto err;
val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
if (failed) {
QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
QLCNIC_DEV_FAILED);
dev_info(&adapter->pdev->dev,
"Device state set to Failed. Please Reboot\n");
} else if (!(val & 0x11111111))
QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
QLCNIC_DEV_COLD);
val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
qlcnic_api_unlock(adapter);
err:
adapter->fw_fail_cnt = 0;
adapter->flags &= ~QLCNIC_FW_HANG;
clear_bit(__QLCNIC_START_FW, &adapter->state);
clear_bit(__QLCNIC_RESETTING, &adapter->state);
}
/* Grab api lock, before checking state */
static int
qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
{
int act, state, active_mask;
struct qlcnic_hardware_context *ahw = adapter->ahw;
state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
active_mask = (~(1 << (ahw->pci_func * 4)));
act = act & active_mask;
}
if (((state & 0x11111111) == (act & 0x11111111)) ||
((act & 0x11111111) == ((state >> 1) & 0x11111111)))
return 0;
else
return 1;
}
static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
{
u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
if (val != QLCNIC_DRV_IDC_VER) {
dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
" idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
}
return 0;
}
static int
qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
{
u32 val, prev_state;
u8 dev_init_timeo = adapter->dev_init_timeo;
u8 portnum = adapter->portnum;
u8 ret;
if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
return 1;
if (qlcnic_api_lock(adapter))
return -1;
val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
if (!(val & (1 << (portnum * 4)))) {
QLC_DEV_SET_REF_CNT(val, portnum);
QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
}
prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
QLCDB(adapter, HW, "Device state = %u\n", prev_state);
switch (prev_state) {
case QLCNIC_DEV_COLD:
QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
QLCNIC_DEV_INITIALIZING);
QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
QLCNIC_DRV_IDC_VER);
qlcnic_idc_debug_info(adapter, 0);
qlcnic_api_unlock(adapter);
return 1;
case QLCNIC_DEV_READY:
ret = qlcnic_check_idc_ver(adapter);
qlcnic_api_unlock(adapter);
return ret;
case QLCNIC_DEV_NEED_RESET:
val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
QLC_DEV_SET_RST_RDY(val, portnum);
QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
break;
case QLCNIC_DEV_NEED_QUISCENT:
val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
QLC_DEV_SET_QSCNT_RDY(val, portnum);
QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
break;
case QLCNIC_DEV_FAILED:
dev_err(&adapter->pdev->dev, "Device in failed state.\n");
qlcnic_api_unlock(adapter);
return -1;
case QLCNIC_DEV_INITIALIZING:
case QLCNIC_DEV_QUISCENT:
break;
}
qlcnic_api_unlock(adapter);
do {
msleep(1000);
prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
if (prev_state == QLCNIC_DEV_QUISCENT)
continue;
} while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
if (!dev_init_timeo) {
dev_err(&adapter->pdev->dev,
"Waiting for device to initialize timeout\n");
return -1;
}
if (qlcnic_api_lock(adapter))
return -1;
val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
QLC_DEV_CLR_RST_QSCNT(val, portnum);
QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
ret = qlcnic_check_idc_ver(adapter);
qlcnic_api_unlock(adapter);
return ret;
}
static void
qlcnic_fwinit_work(struct work_struct *work)
{
struct qlcnic_adapter *adapter = container_of(work,
struct qlcnic_adapter, fw_work.work);
u32 dev_state = 0xf;
u32 val;
if (qlcnic_api_lock(adapter))
goto err_ret;
dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
if (dev_state == QLCNIC_DEV_QUISCENT ||
dev_state == QLCNIC_DEV_NEED_QUISCENT) {
qlcnic_api_unlock(adapter);
qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
FW_POLL_DELAY * 2);
return;
}
if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
qlcnic_api_unlock(adapter);
goto wait_npar;
}
if (dev_state == QLCNIC_DEV_INITIALIZING ||
dev_state == QLCNIC_DEV_READY) {
dev_info(&adapter->pdev->dev, "Detected state change from "
"DEV_NEED_RESET, skipping ack check\n");
goto skip_ack_check;
}
if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
adapter->reset_ack_timeo);
goto skip_ack_check;
}
if (!qlcnic_check_drv_state(adapter)) {
skip_ack_check:
dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
if (dev_state == QLCNIC_DEV_NEED_RESET) {
QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
QLCNIC_DEV_INITIALIZING);
set_bit(__QLCNIC_START_FW, &adapter->state);
QLCDB(adapter, DRV, "Restarting fw\n");
qlcnic_idc_debug_info(adapter, 0);
val = QLC_SHARED_REG_RD32(adapter,
QLCNIC_CRB_DRV_STATE);
QLC_DEV_SET_RST_RDY(val, adapter->portnum);
QLC_SHARED_REG_WR32(adapter,
QLCNIC_CRB_DRV_STATE, val);
}
qlcnic_api_unlock(adapter);
rtnl_lock();
if (qlcnic_check_fw_dump_state(adapter) &&
(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
QLCDB(adapter, DRV, "Take FW dump\n");
qlcnic_dump_fw(adapter);
adapter->flags |= QLCNIC_FW_HANG;
}
rtnl_unlock();
adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
if (!adapter->nic_ops->start_firmware(adapter)) {
qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
adapter->fw_wait_cnt = 0;
return;
}
goto err_ret;
}
qlcnic_api_unlock(adapter);
wait_npar:
dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
switch (dev_state) {
case QLCNIC_DEV_READY:
if (!qlcnic_start_firmware(adapter)) {
qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
adapter->fw_wait_cnt = 0;
return;
}
case QLCNIC_DEV_FAILED:
break;
default:
qlcnic_schedule_work(adapter,
qlcnic_fwinit_work, FW_POLL_DELAY);
return;
}
err_ret:
dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
"fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
netif_device_attach(adapter->netdev);
qlcnic_clr_all_drv_state(adapter, 0);
}
static void
qlcnic_detach_work(struct work_struct *work)
{
struct qlcnic_adapter *adapter = container_of(work,
struct qlcnic_adapter, fw_work.work);
struct net_device *netdev = adapter->netdev;
u32 status;
netif_device_detach(netdev);
/* Dont grab rtnl lock during Quiscent mode */
if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
if (netif_running(netdev))
__qlcnic_down(adapter, netdev);
} else
qlcnic_down(adapter, netdev);
status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
if (status & QLCNIC_RCODE_FATAL_ERROR) {
dev_err(&adapter->pdev->dev,
"Detaching the device: peg halt status1=0x%x\n",
status);
if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
dev_err(&adapter->pdev->dev,
"On board active cooling fan failed. "
"Device has been halted.\n");
dev_err(&adapter->pdev->dev,
"Replace the adapter.\n");
}
goto err_ret;
}
if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
adapter->ahw->temp);
goto err_ret;
}
/* Dont ack if this instance is the reset owner */
if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
dev_err(&adapter->pdev->dev,
"Failed to set driver state,"
"detaching the device.\n");
goto err_ret;
}
}
adapter->fw_wait_cnt = 0;
qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
return;
err_ret:
netif_device_attach(netdev);
qlcnic_clr_all_drv_state(adapter, 1);
}
/*Transit NPAR state to NON Operational */
static void
qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
{
u32 state;
state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
if (state == QLCNIC_DEV_NPAR_NON_OPER)
return;
if (qlcnic_api_lock(adapter))
return;
QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
QLCNIC_DEV_NPAR_NON_OPER);
qlcnic_api_unlock(adapter);
}
static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter,
u32 key)
{
u32 state, xg_val = 0, gb_val = 0;
qlcnic_xg_set_xg0_mask(xg_val);
qlcnic_xg_set_xg1_mask(xg_val);
QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
qlcnic_gb_set_gb0_mask(gb_val);
qlcnic_gb_set_gb1_mask(gb_val);
qlcnic_gb_set_gb2_mask(gb_val);
qlcnic_gb_set_gb3_mask(gb_val);
QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
dev_info(&adapter->pdev->dev, "Pause control frames disabled"
" on all ports\n");
adapter->need_fw_reset = 1;
if (qlcnic_api_lock(adapter))
return;
state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
netdev_err(adapter->netdev, "%s: Device is in non-operational state\n",
__func__);
qlcnic_api_unlock(adapter);
return;
}
if (state == QLCNIC_DEV_READY) {
QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
QLCNIC_DEV_NEED_RESET);
adapter->flags |= QLCNIC_FW_RESET_OWNER;
QLCDB(adapter, DRV, "NEED_RESET state set\n");
qlcnic_idc_debug_info(adapter, 0);
}
QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
QLCNIC_DEV_NPAR_NON_OPER);
qlcnic_api_unlock(adapter);
}
/* Transit to NPAR READY state from NPAR NOT READY state */
static void
qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
{
if (qlcnic_api_lock(adapter))
return;
QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
QLCNIC_DEV_NPAR_OPER);
QLCDB(adapter, DRV, "NPAR operational state set\n");
qlcnic_api_unlock(adapter);
}
void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
work_func_t func, int delay)
{
if (test_bit(__QLCNIC_AER, &adapter->state))
return;
INIT_DELAYED_WORK(&adapter->fw_work, func);
queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
round_jiffies_relative(delay));
}
static void
qlcnic_attach_work(struct work_struct *work)
{
struct qlcnic_adapter *adapter = container_of(work,
struct qlcnic_adapter, fw_work.work);
struct net_device *netdev = adapter->netdev;
u32 npar_state;
if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
npar_state = QLC_SHARED_REG_RD32(adapter,
QLCNIC_CRB_DEV_NPAR_STATE);
if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
qlcnic_clr_all_drv_state(adapter, 0);
else if (npar_state != QLCNIC_DEV_NPAR_OPER)
qlcnic_schedule_work(adapter, qlcnic_attach_work,
FW_POLL_DELAY);
else
goto attach;
QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
return;
}
attach:
qlcnic_dcb_get_info(adapter->dcb);
if (netif_running(netdev)) {
if (qlcnic_up(adapter, netdev))
goto done;
qlcnic_restore_indev_addr(netdev, NETDEV_UP);
}
done:
netif_device_attach(netdev);
adapter->fw_fail_cnt = 0;
adapter->flags &= ~QLCNIC_FW_HANG;
clear_bit(__QLCNIC_RESETTING, &adapter->state);
if (adapter->portnum == 0)
qlcnic_set_drv_version(adapter);
if (!qlcnic_clr_drv_state(adapter))
qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
FW_POLL_DELAY);
}
static int
qlcnic_check_health(struct qlcnic_adapter *adapter)
{
struct qlcnic_hardware_context *ahw = adapter->ahw;
struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
u32 state = 0, heartbeat;
u32 peg_status;
int err = 0;
if (qlcnic_check_temp(adapter))
goto detach;
if (adapter->need_fw_reset)
qlcnic_dev_request_reset(adapter, 0);
state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
if (state == QLCNIC_DEV_NEED_RESET) {
qlcnic_set_npar_non_operational(adapter);
adapter->need_fw_reset = 1;
} else if (state == QLCNIC_DEV_NEED_QUISCENT)
goto detach;
heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
if (heartbeat != adapter->heartbeat) {
adapter->heartbeat = heartbeat;
adapter->fw_fail_cnt = 0;
if (adapter->need_fw_reset)
goto detach;
if (ahw->reset_context && qlcnic_auto_fw_reset)
qlcnic_reset_hw_context(adapter);
return 0;
}
if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
return 0;
adapter->flags |= QLCNIC_FW_HANG;
qlcnic_dev_request_reset(adapter, 0);
if (qlcnic_auto_fw_reset)
clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
dev_err(&adapter->pdev->dev, "firmware hang detected\n");
peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
"PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
"PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
"PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
"PEG_NET_4_PC: 0x%x\n",
peg_status,
QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, &err),
QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, &err),
QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, &err),
QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, &err),
QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, &err));
if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
dev_err(&adapter->pdev->dev,
"Firmware aborted with error code 0x00006700. "
"Device is being reset.\n");
detach:
adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
QLCNIC_DEV_NEED_RESET;
if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
&adapter->state)) {
qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
QLCDB(adapter, DRV, "fw recovery scheduled.\n");
} else if (!qlcnic_auto_fw_reset && fw_dump->enable &&
adapter->flags & QLCNIC_FW_RESET_OWNER) {
qlcnic_dump_fw(adapter);
}
return 1;
}
void qlcnic_fw_poll_work(struct work_struct *work)
{
struct qlcnic_adapter *adapter = container_of(work,
struct qlcnic_adapter, fw_work.work);
if (test_bit(__QLCNIC_RESETTING, &adapter->state))
goto reschedule;
if (qlcnic_check_health(adapter))
return;
if (adapter->fhash.fnum)
qlcnic_prune_lb_filters(adapter);
reschedule:
qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
}
static int qlcnic_is_first_func(struct pci_dev *pdev)
{
struct pci_dev *oth_pdev;
int val = pdev->devfn;
while (val-- > 0) {
oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
(pdev->bus), pdev->bus->number,
PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
if (!oth_pdev)
continue;
if (oth_pdev->current_state != PCI_D3cold) {
pci_dev_put(oth_pdev);
return 0;
}
pci_dev_put(oth_pdev);
}
return 1;
}
static int qlcnic_attach_func(struct pci_dev *pdev)
{
int err, first_func;
struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
struct net_device *netdev = adapter->netdev;
pdev->error_state = pci_channel_io_normal;
err = pci_enable_device(pdev);
if (err)
return err;
pci_set_master(pdev);
pci_restore_state(pdev);
first_func = qlcnic_is_first_func(pdev);
if (qlcnic_api_lock(adapter))
return -EINVAL;
if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
adapter->need_fw_reset = 1;
set_bit(__QLCNIC_START_FW, &adapter->state);
QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
QLCNIC_DEV_INITIALIZING);
QLCDB(adapter, DRV, "Restarting fw\n");
}
qlcnic_api_unlock(adapter);
err = qlcnic_start_firmware(adapter);
if (err)
return err;
qlcnic_clr_drv_state(adapter);
kfree(adapter->msix_entries);
adapter->msix_entries = NULL;
err = qlcnic_setup_intr(adapter);
if (err) {
kfree(adapter->msix_entries);
netdev_err(netdev, "failed to setup interrupt\n");
return err;
}
if (netif_running(netdev)) {
err = qlcnic_attach(adapter);
if (err) {
qlcnic_clr_all_drv_state(adapter, 1);
clear_bit(__QLCNIC_AER, &adapter->state);
netif_device_attach(netdev);
return err;
}
err = qlcnic_up(adapter, netdev);
if (err)
goto done;
qlcnic_restore_indev_addr(netdev, NETDEV_UP);
}
done:
netif_device_attach(netdev);
return err;
}
static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *pdev,
pci_channel_state_t state)
{
struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
struct net_device *netdev = adapter->netdev;
if (state == pci_channel_io_perm_failure)
return PCI_ERS_RESULT_DISCONNECT;
if (state == pci_channel_io_normal)
return PCI_ERS_RESULT_RECOVERED;
set_bit(__QLCNIC_AER, &adapter->state);
netif_device_detach(netdev);
cancel_delayed_work_sync(&adapter->fw_work);
if (netif_running(netdev))
qlcnic_down(adapter, netdev);
qlcnic_detach(adapter);
qlcnic_teardown_intr(adapter);
clear_bit(__QLCNIC_RESETTING, &adapter->state);
pci_save_state(pdev);
pci_disable_device(pdev);
return PCI_ERS_RESULT_NEED_RESET;
}
static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *pdev)
{
return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
PCI_ERS_RESULT_RECOVERED;
}
static void qlcnic_82xx_io_resume(struct pci_dev *pdev)
{
u32 state;
struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
pci_cleanup_aer_uncorrect_error_status(pdev);
state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
&adapter->state))
qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
FW_POLL_DELAY);
}
static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
pci_channel_state_t state)
{
struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
if (hw_ops->io_error_detected) {
return hw_ops->io_error_detected(pdev, state);
} else {
dev_err(&pdev->dev, "AER error_detected handler not registered.\n");
return PCI_ERS_RESULT_DISCONNECT;
}
}
static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
{
struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
if (hw_ops->io_slot_reset) {
return hw_ops->io_slot_reset(pdev);
} else {
dev_err(&pdev->dev, "AER slot_reset handler not registered.\n");
return PCI_ERS_RESULT_DISCONNECT;
}
}
static void qlcnic_io_resume(struct pci_dev *pdev)
{
struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
if (hw_ops->io_resume)
hw_ops->io_resume(pdev);
else
dev_err(&pdev->dev, "AER resume handler not registered.\n");
}
static int
qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
{
int err;
err = qlcnic_can_start_firmware(adapter);
if (err)
return err;
err = qlcnic_check_npar_opertional(adapter);
if (err)
return err;
err = qlcnic_initialize_nic(adapter);
if (err)
return err;
qlcnic_check_options(adapter);
err = qlcnic_set_eswitch_port_config(adapter);
if (err)
return err;
adapter->need_fw_reset = 0;
return err;
}
int qlcnic_validate_rings(struct qlcnic_adapter *adapter, __u32 ring_cnt,
int queue_type)
{
struct net_device *netdev = adapter->netdev;
u8 max_hw_rings = 0;
char buf[8];
int cur_rings;
if (queue_type == QLCNIC_RX_QUEUE) {
max_hw_rings = adapter->max_sds_rings;
cur_rings = adapter->drv_sds_rings;
strcpy(buf, "SDS");
} else if (queue_type == QLCNIC_TX_QUEUE) {
max_hw_rings = adapter->max_tx_rings;
cur_rings = adapter->drv_tx_rings;
strcpy(buf, "Tx");
}
if (!QLCNIC_IS_MSI_FAMILY(adapter)) {
netdev_err(netdev, "No RSS/TSS support in INT-x mode\n");
return -EINVAL;
}
if (adapter->flags & QLCNIC_MSI_ENABLED) {
netdev_err(netdev, "No RSS/TSS support in MSI mode\n");
return -EINVAL;
}
if (!is_power_of_2(ring_cnt)) {
netdev_err(netdev, "%s rings value should be a power of 2\n",
buf);
return -EINVAL;
}
if (qlcnic_82xx_check(adapter) && (queue_type == QLCNIC_TX_QUEUE) &&
!qlcnic_check_multi_tx(adapter)) {
netdev_err(netdev, "No Multi Tx queue support\n");
return -EINVAL;
}
if (ring_cnt > num_online_cpus()) {
netdev_err(netdev,
"%s value[%u] should not be higher than, number of online CPUs\n",
buf, num_online_cpus());
return -EINVAL;
}
return 0;
}
int qlcnic_setup_rings(struct qlcnic_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
int err;
if (test_bit(__QLCNIC_RESETTING, &adapter->state))
return -EBUSY;
netif_device_detach(netdev);
if (netif_running(netdev))
__qlcnic_down(adapter, netdev);
qlcnic_detach(adapter);
if (qlcnic_83xx_check(adapter)) {
qlcnic_83xx_free_mbx_intr(adapter);
qlcnic_83xx_enable_mbx_poll(adapter);
}
qlcnic_teardown_intr(adapter);
err = qlcnic_setup_intr(adapter);
if (err) {
kfree(adapter->msix_entries);
netdev_err(netdev, "failed to setup interrupt\n");
return err;
}
netif_set_real_num_tx_queues(netdev, adapter->drv_tx_rings);
if (qlcnic_83xx_check(adapter)) {
qlcnic_83xx_initialize_nic(adapter, 1);
err = qlcnic_83xx_setup_mbx_intr(adapter);
qlcnic_83xx_disable_mbx_poll(adapter);
if (err) {
dev_err(&adapter->pdev->dev,
"failed to setup mbx interrupt\n");
goto done;
}
}
if (netif_running(netdev)) {
err = qlcnic_attach(adapter);
if (err)
goto done;
err = __qlcnic_up(adapter, netdev);
if (err)
goto done;
qlcnic_restore_indev_addr(netdev, NETDEV_UP);
}
done:
netif_device_attach(netdev);
clear_bit(__QLCNIC_RESETTING, &adapter->state);
return err;
}
#ifdef CONFIG_INET
#define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
static void
qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
struct net_device *dev, unsigned long event)
{
struct in_device *indev;
indev = in_dev_get(dev);
if (!indev)
return;
for_ifa(indev) {
switch (event) {
case NETDEV_UP:
qlcnic_config_ipaddr(adapter,
ifa->ifa_address, QLCNIC_IP_UP);
break;
case NETDEV_DOWN:
qlcnic_config_ipaddr(adapter,
ifa->ifa_address, QLCNIC_IP_DOWN);
break;
default:
break;
}
} endfor_ifa(indev);
in_dev_put(indev);
}
void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
struct net_device *dev;
u16 vid;
qlcnic_config_indev_addr(adapter, netdev, event);
rcu_read_lock();
for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
dev = __vlan_find_dev_deep(netdev, htons(ETH_P_8021Q), vid);
if (!dev)
continue;
qlcnic_config_indev_addr(adapter, dev, event);
}
rcu_read_unlock();
}
static int qlcnic_netdev_event(struct notifier_block *this,
unsigned long event, void *ptr)
{
struct qlcnic_adapter *adapter;
struct net_device *dev = netdev_notifier_info_to_dev(ptr);
recheck:
if (dev == NULL)
goto done;
if (dev->priv_flags & IFF_802_1Q_VLAN) {
dev = vlan_dev_real_dev(dev);
goto recheck;
}
if (!is_qlcnic_netdev(dev))
goto done;
adapter = netdev_priv(dev);
if (!adapter)
goto done;
if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
goto done;
qlcnic_config_indev_addr(adapter, dev, event);
done:
return NOTIFY_DONE;
}
static int
qlcnic_inetaddr_event(struct notifier_block *this,
unsigned long event, void *ptr)
{
struct qlcnic_adapter *adapter;
struct net_device *dev;
struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
recheck:
if (dev == NULL)
goto done;
if (dev->priv_flags & IFF_802_1Q_VLAN) {
dev = vlan_dev_real_dev(dev);
goto recheck;
}
if (!is_qlcnic_netdev(dev))
goto done;
adapter = netdev_priv(dev);
if (!adapter)
goto done;
if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
goto done;
switch (event) {
case NETDEV_UP:
qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
break;
case NETDEV_DOWN:
qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
break;
default:
break;
}
done:
return NOTIFY_DONE;
}
static struct notifier_block qlcnic_netdev_cb = {
.notifier_call = qlcnic_netdev_event,
};
static struct notifier_block qlcnic_inetaddr_cb = {
.notifier_call = qlcnic_inetaddr_event,
};
#else
void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
{ }
#endif
static const struct pci_error_handlers qlcnic_err_handler = {
.error_detected = qlcnic_io_error_detected,
.slot_reset = qlcnic_io_slot_reset,
.resume = qlcnic_io_resume,
};
static struct pci_driver qlcnic_driver = {
.name = qlcnic_driver_name,
.id_table = qlcnic_pci_tbl,
.probe = qlcnic_probe,
.remove = qlcnic_remove,
#ifdef CONFIG_PM
.suspend = qlcnic_suspend,
.resume = qlcnic_resume,
#endif
.shutdown = qlcnic_shutdown,
.err_handler = &qlcnic_err_handler,
#ifdef CONFIG_QLCNIC_SRIOV
.sriov_configure = qlcnic_pci_sriov_configure,
#endif
};
static int __init qlcnic_init_module(void)
{
int ret;
printk(KERN_INFO "%s\n", qlcnic_driver_string);
#ifdef CONFIG_INET
register_netdevice_notifier(&qlcnic_netdev_cb);
register_inetaddr_notifier(&qlcnic_inetaddr_cb);
#endif
ret = pci_register_driver(&qlcnic_driver);
if (ret) {
#ifdef CONFIG_INET
unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
unregister_netdevice_notifier(&qlcnic_netdev_cb);
#endif
}
return ret;
}
module_init(qlcnic_init_module);
static void __exit qlcnic_exit_module(void)
{
pci_unregister_driver(&qlcnic_driver);
#ifdef CONFIG_INET
unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
unregister_netdevice_notifier(&qlcnic_netdev_cb);
#endif
}
module_exit(qlcnic_exit_module);
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