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900853a4db
linux/drivers/net/qlcnic/qlcnic_main.c
Julia Lawall 900853a4db drivers/net/qlcnic: Use available error codes 
The error code is stored in the variable err, but it is the variable ret
that is returned instead.  So store the error code in ret.  Err is then
useless.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
local idexpression x;
constant C;
@@

if (...) { ...
  x = -C
  ... when != x
(
  return <+...x...+>;
|
  return NULL;
|
  return;
|
* return ...;
)
}
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-18 14:26:32 -07:00

3816 lines
93 KiB
C
Raw Blame History

/*
* Copyright (C) 2009 - QLogic Corporation.
* All rights reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston,
* MA 02111-1307, USA.
*
* The full GNU General Public License is included in this distribution
* in the file called "COPYING".
*
*/
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/interrupt.h>
#include "qlcnic.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/sysfs.h>
#include <linux/aer.h>
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 port_mode = QLCNIC_PORT_MODE_AUTO_NEG;
/* Default to restricted 1G auto-neg mode */
static int wol_port_mode = 5;
static int use_msi = 1;
module_param(use_msi, int, 0644);
MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled");
static int use_msi_x = 1;
module_param(use_msi_x, int, 0644);
MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled");
static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
module_param(auto_fw_reset, int, 0644);
MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled");
static int load_fw_file;
module_param(load_fw_file, int, 0644);
MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file");
static int qlcnic_config_npars;
module_param(qlcnic_config_npars, int, 0644);
MODULE_PARM_DESC(qlcnic_config_npars, "Configure NPARs (0=disabled, 1=enabled");
static int __devinit qlcnic_probe(struct pci_dev *pdev,
const struct pci_device_id *ent);
static void __devexit 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);
static void qlcnic_fw_poll_work(struct work_struct *work);
static void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
work_func_t func, int delay);
static void qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter);
static int qlcnic_poll(struct napi_struct *napi, int budget);
static int qlcnic_rx_poll(struct napi_struct *napi, int budget);
#ifdef CONFIG_NET_POLL_CONTROLLER
static void qlcnic_poll_controller(struct net_device *netdev);
#endif
static void qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter);
static void qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter);
static void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter);
static void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter);
static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter);
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 struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
static void qlcnic_config_indev_addr(struct net_device *dev, unsigned long);
static int qlcnic_start_firmware(struct qlcnic_adapter *);
static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
static int qlcnicvf_config_led(struct qlcnic_adapter *, u32, u32);
static int qlcnicvf_config_bridged_mode(struct qlcnic_adapter *, u32);
static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
/* PCI Device ID Table */
#define ENTRY(device) \
{PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
.class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
#define PCI_DEVICE_ID_QLOGIC_QLE824X 0x8020
static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
{0,}
};
MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
void
qlcnic_update_cmd_producer(struct qlcnic_adapter *adapter,
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
struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
static inline void qlcnic_disable_int(struct qlcnic_host_sds_ring *sds_ring)
{
writel(0, sds_ring->crb_intr_mask);
}
static inline void qlcnic_enable_int(struct qlcnic_host_sds_ring *sds_ring)
{
struct qlcnic_adapter *adapter = sds_ring->adapter;
writel(0x1, sds_ring->crb_intr_mask);
if (!QLCNIC_IS_MSI_FAMILY(adapter))
writel(0xfbff, adapter->tgt_mask_reg);
}
static 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);
}
static 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;
}
static int
qlcnic_napi_add(struct qlcnic_adapter *adapter, struct net_device *netdev)
{
int ring;
struct qlcnic_host_sds_ring *sds_ring;
struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
if (qlcnic_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
return -ENOMEM;
for (ring = 0; ring < adapter->max_sds_rings; ring++) {
sds_ring = &recv_ctx->sds_rings[ring];
if (ring == adapter->max_sds_rings - 1)
netif_napi_add(netdev, &sds_ring->napi, qlcnic_poll,
QLCNIC_NETDEV_WEIGHT/adapter->max_sds_rings);
else
netif_napi_add(netdev, &sds_ring->napi,
qlcnic_rx_poll, QLCNIC_NETDEV_WEIGHT*2);
}
return 0;
}
static void
qlcnic_napi_del(struct qlcnic_adapter *adapter)
{
int ring;
struct qlcnic_host_sds_ring *sds_ring;
struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
for (ring = 0; ring < adapter->max_sds_rings; ring++) {
sds_ring = &recv_ctx->sds_rings[ring];
netif_napi_del(&sds_ring->napi);
}
qlcnic_free_sds_rings(&adapter->recv_ctx);
}
static void
qlcnic_napi_enable(struct qlcnic_adapter *adapter)
{
int ring;
struct qlcnic_host_sds_ring *sds_ring;
struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
return;
for (ring = 0; ring < adapter->max_sds_rings; ring++) {
sds_ring = &recv_ctx->sds_rings[ring];
napi_enable(&sds_ring->napi);
qlcnic_enable_int(sds_ring);
}
}
static void
qlcnic_napi_disable(struct qlcnic_adapter *adapter)
{
int ring;
struct qlcnic_host_sds_ring *sds_ring;
struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
return;
for (ring = 0; ring < adapter->max_sds_rings; ring++) {
sds_ring = &recv_ctx->sds_rings[ring];
qlcnic_disable_int(sds_ring);
napi_synchronize(&sds_ring->napi);
napi_disable(&sds_ring->napi);
}
}
static void qlcnic_clear_stats(struct qlcnic_adapter *adapter)
{
memset(&adapter->stats, 0, sizeof(adapter->stats));
}
static void qlcnic_set_port_mode(struct qlcnic_adapter *adapter)
{
u32 val, data;
val = adapter->ahw.board_type;
if ((val == QLCNIC_BRDTYPE_P3_HMEZ) ||
(val == QLCNIC_BRDTYPE_P3_XG_LOM)) {
if (port_mode == QLCNIC_PORT_MODE_802_3_AP) {
data = QLCNIC_PORT_MODE_802_3_AP;
QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
} else if (port_mode == QLCNIC_PORT_MODE_XG) {
data = QLCNIC_PORT_MODE_XG;
QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
} else if (port_mode == QLCNIC_PORT_MODE_AUTO_NEG_1G) {
data = QLCNIC_PORT_MODE_AUTO_NEG_1G;
QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
} else if (port_mode == QLCNIC_PORT_MODE_AUTO_NEG_XG) {
data = QLCNIC_PORT_MODE_AUTO_NEG_XG;
QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
} else {
data = QLCNIC_PORT_MODE_AUTO_NEG;
QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
}
if ((wol_port_mode != QLCNIC_PORT_MODE_802_3_AP) &&
(wol_port_mode != QLCNIC_PORT_MODE_XG) &&
(wol_port_mode != QLCNIC_PORT_MODE_AUTO_NEG_1G) &&
(wol_port_mode != QLCNIC_PORT_MODE_AUTO_NEG_XG)) {
wol_port_mode = QLCNIC_PORT_MODE_AUTO_NEG;
}
QLCWR32(adapter, QLCNIC_WOL_PORT_MODE, wol_port_mode);
}
}
static void qlcnic_set_msix_bit(struct pci_dev *pdev, int enable)
{
u32 control;
int pos;
pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
if (pos) {
pci_read_config_dword(pdev, pos, &control);
if (enable)
control |= PCI_MSIX_FLAGS_ENABLE;
else
control = 0;
pci_write_config_dword(pdev, pos, control);
}
}
static void qlcnic_init_msix_entries(struct qlcnic_adapter *adapter, int count)
{
int i;
for (i = 0; i < count; i++)
adapter->msix_entries[i].entry = i;
}
static int
qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
{
u8 mac_addr[ETH_ALEN];
struct net_device *netdev = adapter->netdev;
struct pci_dev *pdev = adapter->pdev;
if (adapter->nic_ops->get_mac_addr(adapter, mac_addr) != 0)
return -EIO;
memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
/* set station address */
if (!is_valid_ether_addr(netdev->perm_addr))
dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
netdev->dev_addr);
return 0;
}
static int qlcnic_set_mac(struct net_device *netdev, void *p)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
struct sockaddr *addr = p;
if (!is_valid_ether_addr(addr->sa_data))
return -EINVAL;
if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
netif_device_detach(netdev);
qlcnic_napi_disable(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 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_multicast_list = qlcnic_set_multi,
.ndo_set_mac_address = qlcnic_set_mac,
.ndo_change_mtu = qlcnic_change_mtu,
.ndo_tx_timeout = qlcnic_tx_timeout,
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = qlcnic_poll_controller,
#endif
};
static struct qlcnic_nic_template qlcnic_ops = {
.get_mac_addr = qlcnic_get_mac_address,
.config_bridged_mode = qlcnic_config_bridged_mode,
.config_led = qlcnic_config_led,
.start_firmware = qlcnic_start_firmware
};
static struct qlcnic_nic_template qlcnic_vf_ops = {
.get_mac_addr = qlcnic_get_mac_address,
.config_bridged_mode = qlcnicvf_config_bridged_mode,
.config_led = qlcnicvf_config_led,
.start_firmware = qlcnicvf_start_firmware
};
static void
qlcnic_setup_intr(struct qlcnic_adapter *adapter)
{
const struct qlcnic_legacy_intr_set *legacy_intrp;
struct pci_dev *pdev = adapter->pdev;
int err, num_msix;
if (adapter->rss_supported) {
num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
MSIX_ENTRIES_PER_ADAPTER : 2;
} else
num_msix = 1;
adapter->max_sds_rings = 1;
adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
adapter->int_vec_bit = legacy_intrp->int_vec_bit;
adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
legacy_intrp->tgt_status_reg);
adapter->tgt_mask_reg = qlcnic_get_ioaddr(adapter,
legacy_intrp->tgt_mask_reg);
adapter->isr_int_vec = qlcnic_get_ioaddr(adapter, ISR_INT_VECTOR);
adapter->crb_int_state_reg = qlcnic_get_ioaddr(adapter,
ISR_INT_STATE_REG);
qlcnic_set_msix_bit(pdev, 0);
if (adapter->msix_supported) {
qlcnic_init_msix_entries(adapter, num_msix);
err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
if (err == 0) {
adapter->flags |= QLCNIC_MSIX_ENABLED;
qlcnic_set_msix_bit(pdev, 1);
if (adapter->rss_supported)
adapter->max_sds_rings = num_msix;
dev_info(&pdev->dev, "using msi-x interrupts\n");
return;
}
if (err > 0)
pci_disable_msix(pdev);
/* fall through for msi */
}
if (use_msi && !pci_enable_msi(pdev)) {
adapter->flags |= QLCNIC_MSI_ENABLED;
adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
msi_tgt_status[adapter->ahw.pci_func]);
dev_info(&pdev->dev, "using msi interrupts\n");
adapter->msix_entries[0].vector = pdev->irq;
return;
}
dev_info(&pdev->dev, "using legacy interrupts\n");
adapter->msix_entries[0].vector = pdev->irq;
}
static 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);
}
static void
qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter)
{
if (adapter->ahw.pci_base0 != NULL)
iounmap(adapter->ahw.pci_base0);
}
static int
qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
{
struct qlcnic_pci_info *pci_info;
int i, ret = 0;
u8 pfn;
pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
if (!pci_info)
return -ENOMEM;
adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
QLCNIC_MAX_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;
}
ret = qlcnic_get_pci_info(adapter, pci_info);
if (ret)
goto err_eswitch;
for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
pfn = pci_info[i].id;
if (pfn > QLCNIC_MAX_PCI_FUNC)
return QL_STATUS_INVALID_PARAM;
adapter->npars[pfn].active = pci_info[i].active;
adapter->npars[pfn].type = pci_info[i].type;
adapter->npars[pfn].phy_port = pci_info[i].default_port;
adapter->npars[pfn].mac_learning = DEFAULT_MAC_LEARN;
adapter->npars[pfn].min_bw = pci_info[i].tx_min_bw;
adapter->npars[pfn].max_bw = pci_info[i].tx_max_bw;
}
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;
u32 ref_count;
int i, ret = 1;
u32 data = QLCNIC_MGMT_FUNC;
void __iomem *priv_op = adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE;
/* If other drivers are not in use set their privilege level */
ref_count = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT);
ret = qlcnic_api_lock(adapter);
if (ret)
goto err_lock;
if (qlcnic_config_npars) {
for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
id = i;
if (adapter->npars[i].type != QLCNIC_TYPE_NIC ||
id == adapter->ahw.pci_func)
continue;
data |= (qlcnic_config_npars &
QLC_DEV_SET_DRV(0xf, id));
}
} else {
data = readl(priv_op);
data = (data & ~QLC_DEV_SET_DRV(0xf, adapter->ahw.pci_func)) |
(QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC,
adapter->ahw.pci_func));
}
writel(data, priv_op);
qlcnic_api_unlock(adapter);
err_lock:
return ret;
}
static u32
qlcnic_get_driver_mode(struct qlcnic_adapter *adapter)
{
void __iomem *msix_base_addr;
void __iomem *priv_op;
struct qlcnic_info nic_info;
u32 func;
u32 msix_base;
u32 op_mode, priv_level;
/* Determine FW API version */
adapter->fw_hal_version = readl(adapter->ahw.pci_base0 + QLCNIC_FW_API);
/* Find PCI function number */
pci_read_config_dword(adapter->pdev, QLCNIC_MSIX_TABLE_OFFSET, &func);
msix_base_addr = adapter->ahw.pci_base0 + QLCNIC_MSIX_BASE;
msix_base = readl(msix_base_addr);
func = (func - msix_base)/QLCNIC_MSIX_TBL_PGSIZE;
adapter->ahw.pci_func = func;
if (!qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw.pci_func)) {
adapter->capabilities = nic_info.capabilities;
if (adapter->capabilities & BIT_6)
adapter->flags |= QLCNIC_ESWITCH_ENABLED;
else
adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
}
if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
adapter->nic_ops = &qlcnic_ops;
return adapter->fw_hal_version;
}
/* Determine function privilege level */
priv_op = adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE;
op_mode = readl(priv_op);
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);
switch (priv_level) {
case QLCNIC_MGMT_FUNC:
adapter->op_mode = QLCNIC_MGMT_FUNC;
adapter->nic_ops = &qlcnic_ops;
qlcnic_init_pci_info(adapter);
/* Set privilege level for other functions */
qlcnic_set_function_modes(adapter);
dev_info(&adapter->pdev->dev,
"HAL Version: %d, Management function\n",
adapter->fw_hal_version);
break;
case QLCNIC_PRIV_FUNC:
adapter->op_mode = QLCNIC_PRIV_FUNC;
dev_info(&adapter->pdev->dev,
"HAL Version: %d, Privileged function\n",
adapter->fw_hal_version);
adapter->nic_ops = &qlcnic_ops;
break;
case QLCNIC_NON_PRIV_FUNC:
adapter->op_mode = QLCNIC_NON_PRIV_FUNC;
dev_info(&adapter->pdev->dev,
"HAL Version: %d Non Privileged function\n",
adapter->fw_hal_version);
adapter->nic_ops = &qlcnic_vf_ops;
break;
default:
dev_info(&adapter->pdev->dev, "Unknown function mode: %d\n",
priv_level);
return 0;
}
return adapter->fw_hal_version;
}
static int
qlcnic_setup_pci_map(struct qlcnic_adapter *adapter)
{
void __iomem *mem_ptr0 = NULL;
resource_size_t mem_base;
unsigned long mem_len, pci_len0 = 0;
struct pci_dev *pdev = adapter->pdev;
/* remap phys address */
mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
mem_len = pci_resource_len(pdev, 0);
if (mem_len == QLCNIC_PCI_2MB_SIZE) {
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, "%dMB memory map\n", (int)(mem_len>>20));
adapter->ahw.pci_base0 = mem_ptr0;
adapter->ahw.pci_len0 = pci_len0;
if (!qlcnic_get_driver_mode(adapter)) {
iounmap(adapter->ahw.pci_base0);
return -EIO;
}
adapter->ahw.ocm_win_crb = qlcnic_get_ioaddr(adapter,
QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(adapter->ahw.pci_func)));
return 0;
}
static void get_brd_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_boards[i].sub_vendor == pdev->subsystem_vendor &&
qlcnic_boards[i].sub_device == pdev->subsystem_device) {
sprintf(name, "%pM: %s" ,
adapter->mac_addr,
qlcnic_boards[i].short_name);
found = 1;
break;
}
}
if (!found)
sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
}
static void
qlcnic_check_options(struct qlcnic_adapter *adapter)
{
u32 fw_major, fw_minor, fw_build;
char brd_name[QLCNIC_MAX_BOARD_NAME_LEN];
char serial_num[32];
int i, offset, val;
int *ptr32;
struct pci_dev *pdev = adapter->pdev;
struct qlcnic_info nic_info;
adapter->driver_mismatch = 0;
ptr32 = (int *)&serial_num;
offset = QLCNIC_FW_SERIAL_NUM_OFFSET;
for (i = 0; i < 8; i++) {
if (qlcnic_rom_fast_read(adapter, offset, &val) == -1) {
dev_err(&pdev->dev, "error reading board info\n");
adapter->driver_mismatch = 1;
return;
}
ptr32[i] = cpu_to_le32(val);
offset += sizeof(u32);
}
fw_major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR);
fw_minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR);
fw_build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB);
adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
if (adapter->portnum == 0) {
get_brd_name(adapter, brd_name);
pr_info("%s: %s Board Chip rev 0x%x\n",
module_name(THIS_MODULE),
brd_name, adapter->ahw.revision_id);
}
dev_info(&pdev->dev, "firmware v%d.%d.%d\n",
fw_major, fw_minor, fw_build);
adapter->flags &= ~QLCNIC_LRO_ENABLED;
if (adapter->ahw.port_type == QLCNIC_XGBE) {
adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
adapter->num_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;
}
if (!qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw.pci_func)) {
adapter->physical_port = nic_info.phys_port;
adapter->switch_mode = nic_info.switch_mode;
adapter->max_tx_ques = nic_info.max_tx_ques;
adapter->max_rx_ques = nic_info.max_rx_ques;
adapter->capabilities = nic_info.capabilities;
adapter->max_mac_filters = nic_info.max_mac_filters;
adapter->max_mtu = nic_info.max_mtu;
}
adapter->msix_supported = !!use_msi_x;
adapter->rss_supported = !!use_msi_x;
adapter->num_txd = MAX_CMD_DESCRIPTORS;
adapter->max_rds_rings = 2;
}
static int
qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
{
int i, err = 0;
struct qlcnic_npar_info *npar;
struct qlcnic_info nic_info;
if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
!adapter->need_fw_reset)
return 0;
if (adapter->op_mode == QLCNIC_MGMT_FUNC) {
/* Set the NPAR config data after FW reset */
for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
npar = &adapter->npars[i];
if (npar->type != QLCNIC_TYPE_NIC)
continue;
err = qlcnic_get_nic_info(adapter, &nic_info, i);
if (err)
goto err_out;
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)
goto err_out;
if (npar->enable_pm) {
err = qlcnic_config_port_mirroring(adapter,
npar->dest_npar, 1, i);
if (err)
goto err_out;
}
npar->mac_learning = DEFAULT_MAC_LEARN;
npar->host_vlan_tag = 0;
npar->promisc_mode = 0;
npar->discard_tagged = 0;
npar->vlan_id = 0;
}
}
err_out:
return err;
}
static int
qlcnic_start_firmware(struct qlcnic_adapter *adapter)
{
int val, err, first_boot;
err = qlcnic_can_start_firmware(adapter);
if (err < 0)
return err;
else if (!err)
goto wait_init;
first_boot = QLCRD32(adapter, QLCNIC_CAM_RAM(0x1fc));
if (first_boot == 0x55555555)
/* This is the first boot after power up */
QLCWR32(adapter, QLCNIC_CAM_RAM(0x1fc), QLCNIC_BDINFO_MAGIC);
if (load_fw_file)
qlcnic_request_firmware(adapter);
else {
if (qlcnic_check_flash_fw_ver(adapter))
goto err_out;
adapter->fw_type = QLCNIC_FLASH_ROMIMAGE;
}
err = qlcnic_need_fw_reset(adapter);
if (err < 0)
goto err_out;
if (err == 0)
goto wait_init;
if (first_boot != 0x55555555) {
QLCWR32(adapter, CRB_CMDPEG_STATE, 0);
QLCWR32(adapter, CRB_RCVPEG_STATE, 0);
qlcnic_pinit_from_rom(adapter);
msleep(1);
}
QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS1, 0);
QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS2, 0);
qlcnic_set_port_mode(adapter);
err = qlcnic_load_firmware(adapter);
if (err)
goto err_out;
qlcnic_release_firmware(adapter);
val = (_QLCNIC_LINUX_MAJOR << 16)
| ((_QLCNIC_LINUX_MINOR << 8))
| (_QLCNIC_LINUX_SUBVERSION);
QLCWR32(adapter, CRB_DRIVER_VERSION, val);
wait_init:
/* Handshake with the card before we register the devices. */
err = qlcnic_init_firmware(adapter);
if (err)
goto err_out;
QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
qlcnic_idc_debug_info(adapter, 1);
qlcnic_check_options(adapter);
if (qlcnic_reset_npar_config(adapter))
goto err_out;
qlcnic_dev_set_npar_ready(adapter);
adapter->need_fw_reset = 0;
qlcnic_release_firmware(adapter);
return 0;
err_out:
QLCWR32(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;
int err, ring;
unsigned long flags = 0;
struct net_device *netdev = adapter->netdev;
struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
handler = qlcnic_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;
handler = qlcnic_intr;
}
}
adapter->irq = netdev->irq;
for (ring = 0; ring < adapter->max_sds_rings; ring++) {
sds_ring = &recv_ctx->sds_rings[ring];
sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
err = request_irq(sds_ring->irq, handler,
flags, sds_ring->name, sds_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_recv_context *recv_ctx = &adapter->recv_ctx;
for (ring = 0; ring < adapter->max_sds_rings; ring++) {
sds_ring = &recv_ctx->sds_rings[ring];
free_irq(sds_ring->irq, sds_ring);
}
}
static void
qlcnic_init_coalesce_defaults(struct qlcnic_adapter *adapter)
{
adapter->coal.flags = QLCNIC_INTR_DEFAULT;
adapter->coal.normal.data.rx_time_us =
QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
adapter->coal.normal.data.rx_packets =
QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
adapter->coal.normal.data.tx_time_us =
QLCNIC_DEFAULT_INTR_COALESCE_TX_TIME_US;
adapter->coal.normal.data.tx_packets =
QLCNIC_DEFAULT_INTR_COALESCE_TX_PACKETS;
}
static 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_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, ring, rds_ring);
}
qlcnic_set_multi(netdev);
qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
adapter->ahw.linkup = 0;
if (adapter->max_sds_rings > 1)
qlcnic_config_rss(adapter, 1);
qlcnic_config_intr_coalesce(adapter);
if (netdev->features & NETIF_F_LRO)
qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
qlcnic_napi_enable(adapter);
qlcnic_linkevent_request(adapter, 1);
adapter->reset_context = 0;
set_bit(__QLCNIC_DEV_UP, &adapter->state);
return 0;
}
/* Usage: During resume and firmware recovery module.*/
static 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;
}
static void
__qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
{
if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
return;
if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
return;
smp_mb();
spin_lock(&adapter->tx_clean_lock);
netif_carrier_off(netdev);
netif_tx_disable(netdev);
qlcnic_free_mac_list(adapter);
qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
qlcnic_napi_disable(adapter);
qlcnic_fw_destroy_ctx(adapter);
qlcnic_reset_rx_buffers_list(adapter);
qlcnic_release_tx_buffers(adapter);
spin_unlock(&adapter->tx_clean_lock);
}
/* Usage: During suspend and firmware recovery module */
static void
qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
{
rtnl_lock();
if (netif_running(netdev))
__qlcnic_down(adapter, netdev);
rtnl_unlock();
}
static 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_init_coalesce_defaults(adapter);
qlcnic_create_sysfs_entries(adapter);
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;
}
static 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 max_sds_rings)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
struct qlcnic_host_sds_ring *sds_ring;
int ring;
clear_bit(__QLCNIC_DEV_UP, &adapter->state);
if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
for (ring = 0; ring < adapter->max_sds_rings; ring++) {
sds_ring = &adapter->recv_ctx.sds_rings[ring];
qlcnic_disable_int(sds_ring);
}
}
qlcnic_fw_destroy_ctx(adapter);
qlcnic_detach(adapter);
adapter->diag_test = 0;
adapter->max_sds_rings = max_sds_rings;
if (qlcnic_attach(adapter))
goto out;
if (netif_running(netdev))
__qlcnic_up(adapter, netdev);
out:
netif_device_attach(netdev);
}
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->max_sds_rings = 1;
adapter->diag_test = test;
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, ring, rds_ring);
}
if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
for (ring = 0; ring < adapter->max_sds_rings; ring++) {
sds_ring = &adapter->recv_ctx.sds_rings[ring];
qlcnic_enable_int(sds_ring);
}
}
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);
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);
}
netif_device_attach(netdev);
}
clear_bit(__QLCNIC_RESETTING, &adapter->state);
return err;
}
static int
qlcnic_setup_netdev(struct qlcnic_adapter *adapter,
struct net_device *netdev, u8 pci_using_dac)
{
int err;
struct pci_dev *pdev = adapter->pdev;
adapter->rx_csum = 1;
adapter->mc_enabled = 0;
adapter->max_mc_count = 38;
netdev->netdev_ops = &qlcnic_netdev_ops;
netdev->watchdog_timeo = 5*HZ;
qlcnic_change_mtu(netdev, netdev->mtu);
SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
NETIF_F_IPV6_CSUM | NETIF_F_GRO);
netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
NETIF_F_IPV6_CSUM);
if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO) {
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 (adapter->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX)
netdev->features |= (NETIF_F_HW_VLAN_TX);
if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
netdev->features |= NETIF_F_LRO;
netdev->irq = adapter->msix_entries[0].vector;
if (qlcnic_read_mac_addr(adapter))
dev_warn(&pdev->dev, "failed to read mac addr\n");
netif_carrier_off(netdev);
netif_stop_queue(netdev);
err = register_netdev(netdev);
if (err) {
dev_err(&pdev->dev, "failed to register net device\n");
return err;
}
return 0;
}
static int qlcnic_set_dma_mask(struct pci_dev *pdev, u8 *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;
}
static int __devinit
qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
struct net_device *netdev = NULL;
struct qlcnic_adapter *adapter = NULL;
int err;
uint8_t revision_id;
uint8_t pci_using_dac;
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);
netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
if (!netdev) {
dev_err(&pdev->dev, "failed to allocate net_device\n");
err = -ENOMEM;
goto err_out_free_res;
}
SET_NETDEV_DEV(netdev, &pdev->dev);
adapter = netdev_priv(netdev);
adapter->netdev = netdev;
adapter->pdev = pdev;
adapter->dev_rst_time = jiffies;
revision_id = pdev->revision;
adapter->ahw.revision_id = revision_id;
rwlock_init(&adapter->ahw.crb_lock);
mutex_init(&adapter->ahw.mem_lock);
spin_lock_init(&adapter->tx_clean_lock);
INIT_LIST_HEAD(&adapter->mac_list);
err = qlcnic_setup_pci_map(adapter);
if (err)
goto err_out_free_netdev;
/* This will be reset for mezz cards */
adapter->portnum = adapter->ahw.pci_func;
err = qlcnic_get_board_info(adapter);
if (err) {
dev_err(&pdev->dev, "Error getting board config info.\n");
goto err_out_iounmap;
}
if (qlcnic_read_mac_addr(adapter))
dev_warn(&pdev->dev, "failed to read mac addr\n");
if (qlcnic_setup_idc_param(adapter))
goto err_out_iounmap;
err = adapter->nic_ops->start_firmware(adapter);
if (err) {
dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
goto err_out_decr_ref;
}
qlcnic_clear_stats(adapter);
qlcnic_setup_intr(adapter);
err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
if (err)
goto err_out_disable_msi;
pci_set_drvdata(pdev, 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;
}
qlcnic_create_diag_entries(adapter);
return 0;
err_out_disable_msi:
qlcnic_teardown_intr(adapter);
err_out_decr_ref:
qlcnic_clr_all_drv_state(adapter);
err_out_iounmap:
qlcnic_cleanup_pci_map(adapter);
err_out_free_netdev:
free_netdev(netdev);
err_out_free_res:
pci_release_regions(pdev);
err_out_disable_pdev:
pci_set_drvdata(pdev, NULL);
pci_disable_device(pdev);
return err;
}
static void __devexit qlcnic_remove(struct pci_dev *pdev)
{
struct qlcnic_adapter *adapter;
struct net_device *netdev;
adapter = pci_get_drvdata(pdev);
if (adapter == NULL)
return;
netdev = adapter->netdev;
qlcnic_cancel_fw_work(adapter);
unregister_netdev(netdev);
qlcnic_detach(adapter);
if (adapter->npars != NULL)
kfree(adapter->npars);
if (adapter->eswitch != NULL)
kfree(adapter->eswitch);
qlcnic_clr_all_drv_state(adapter);
clear_bit(__QLCNIC_RESETTING, &adapter->state);
qlcnic_teardown_intr(adapter);
qlcnic_remove_diag_entries(adapter);
qlcnic_cleanup_pci_map(adapter);
qlcnic_release_firmware(adapter);
pci_disable_pcie_error_reporting(pdev);
pci_release_regions(pdev);
pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
free_netdev(netdev);
}
static int __qlcnic_shutdown(struct pci_dev *pdev)
{
struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
struct net_device *netdev = adapter->netdev;
int retval;
netif_device_detach(netdev);
qlcnic_cancel_fw_work(adapter);
if (netif_running(netdev))
qlcnic_down(adapter, netdev);
qlcnic_clr_all_drv_state(adapter);
clear_bit(__QLCNIC_RESETTING, &adapter->state);
retval = pci_save_state(pdev);
if (retval)
return retval;
if (qlcnic_wol_supported(adapter)) {
pci_enable_wake(pdev, PCI_D3cold, 1);
pci_enable_wake(pdev, PCI_D3hot, 1);
}
return 0;
}
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);
struct net_device *netdev = adapter->netdev;
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);
err = adapter->nic_ops->start_firmware(adapter);
if (err) {
dev_err(&pdev->dev, "failed to start firmware\n");
return err;
}
if (netif_running(netdev)) {
err = qlcnic_up(adapter, netdev);
if (err)
goto done;
qlcnic_config_indev_addr(netdev, NETDEV_UP);
}
done:
netif_device_attach(netdev);
qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
return 0;
}
#endif
static int qlcnic_open(struct net_device *netdev)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
int err;
if (adapter->driver_mismatch)
return -EIO;
err = qlcnic_attach(adapter);
if (err)
return err;
err = __qlcnic_up(adapter, netdev);
if (err)
goto err_out;
netif_start_queue(netdev);
return 0;
err_out:
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;
}
static void
qlcnic_tso_check(struct net_device *netdev,
struct qlcnic_host_tx_ring *tx_ring,
struct cmd_desc_type0 *first_desc,
struct sk_buff *skb)
{
u8 opcode = TX_ETHER_PKT;
__be16 protocol = skb->protocol;
u16 flags = 0, vid = 0;
int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
struct cmd_desc_type0 *hwdesc;
struct vlan_ethhdr *vh;
struct qlcnic_adapter *adapter = netdev_priv(netdev);
u32 producer = tx_ring->producer;
if (protocol == cpu_to_be16(ETH_P_8021Q)) {
vh = (struct vlan_ethhdr *)skb->data;
protocol = vh->h_vlan_encapsulated_proto;
flags = FLAGS_VLAN_TAGGED;
} else if (vlan_tx_tag_present(skb)) {
flags = FLAGS_VLAN_OOB;
vid = vlan_tx_tag_get(skb);
qlcnic_set_tx_vlan_tci(first_desc, vid);
vlan_oob = 1;
}
if (*(skb->data) & BIT_0) {
flags |= BIT_0;
memcpy(&first_desc->eth_addr, skb->data, ETH_ALEN);
}
if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
skb_shinfo(skb)->gso_size > 0) {
hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
first_desc->total_hdr_length = hdr_len;
if (vlan_oob) {
first_desc->total_hdr_length += VLAN_HLEN;
first_desc->tcp_hdr_offset = VLAN_HLEN;
first_desc->ip_hdr_offset = VLAN_HLEN;
/* Only in case of TSO on vlan device */
flags |= FLAGS_VLAN_TAGGED;
}
opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
TX_TCP_LSO6 : TX_TCP_LSO;
tso = 1;
} else if (skb->ip_summed == CHECKSUM_PARTIAL) {
u8 l4proto;
if (protocol == cpu_to_be16(ETH_P_IP)) {
l4proto = ip_hdr(skb)->protocol;
if (l4proto == IPPROTO_TCP)
opcode = TX_TCP_PKT;
else if (l4proto == IPPROTO_UDP)
opcode = TX_UDP_PKT;
} else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
l4proto = ipv6_hdr(skb)->nexthdr;
if (l4proto == IPPROTO_TCP)
opcode = TX_TCPV6_PKT;
else if (l4proto == IPPROTO_UDP)
opcode = TX_UDPV6_PKT;
}
}
first_desc->tcp_hdr_offset += skb_transport_offset(skb);
first_desc->ip_hdr_offset += skb_network_offset(skb);
qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
if (!tso)
return;
/* For LSO, we need to copy the MAC/IP/TCP headers into
* the descriptor ring
*/
copied = 0;
offset = 2;
if (vlan_oob) {
/* Create a TSO vlan header template for firmware */
hwdesc = &tx_ring->desc_head[producer];
tx_ring->cmd_buf_arr[producer].skb = NULL;
copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
hdr_len + VLAN_HLEN);
vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
skb_copy_from_linear_data(skb, vh, 12);
vh->h_vlan_proto = htons(ETH_P_8021Q);
vh->h_vlan_TCI = htons(vid);
skb_copy_from_linear_data_offset(skb, 12,
(char *)vh + 16, copy_len - 16);
copied = copy_len - VLAN_HLEN;
offset = 0;
producer = get_next_index(producer, tx_ring->num_desc);
}
while (copied < hdr_len) {
copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
(hdr_len - copied));
hwdesc = &tx_ring->desc_head[producer];
tx_ring->cmd_buf_arr[producer].skb = NULL;
skb_copy_from_linear_data_offset(skb, copied,
(char *)hwdesc + offset, copy_len);
copied += copy_len;
offset = 0;
producer = get_next_index(producer, tx_ring->num_desc);
}
tx_ring->producer = producer;
barrier();
adapter->stats.lso_frames++;
}
static int
qlcnic_map_tx_skb(struct pci_dev *pdev,
struct sk_buff *skb, struct qlcnic_cmd_buffer *pbuf)
{
struct qlcnic_skb_frag *nf;
struct skb_frag_struct *frag;
int i, nr_frags;
dma_addr_t map;
nr_frags = skb_shinfo(skb)->nr_frags;
nf = &pbuf->frag_array[0];
map = pci_map_single(pdev, skb->data,
skb_headlen(skb), PCI_DMA_TODEVICE);
if (pci_dma_mapping_error(pdev, map))
goto out_err;
nf->dma = map;
nf->length = skb_headlen(skb);
for (i = 0; i < nr_frags; i++) {
frag = &skb_shinfo(skb)->frags[i];
nf = &pbuf->frag_array[i+1];
map = pci_map_page(pdev, frag->page, frag->page_offset,
frag->size, PCI_DMA_TODEVICE);
if (pci_dma_mapping_error(pdev, map))
goto unwind;
nf->dma = map;
nf->length = frag->size;
}
return 0;
unwind:
while (--i >= 0) {
nf = &pbuf->frag_array[i+1];
pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
}
nf = &pbuf->frag_array[0];
pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
out_err:
return -ENOMEM;
}
static inline void
qlcnic_clear_cmddesc(u64 *desc)
{
desc[0] = 0ULL;
desc[2] = 0ULL;
}
netdev_tx_t
qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
struct qlcnic_cmd_buffer *pbuf;
struct qlcnic_skb_frag *buffrag;
struct cmd_desc_type0 *hwdesc, *first_desc;
struct pci_dev *pdev;
int i, k;
u32 producer;
int frag_count, no_of_desc;
u32 num_txd = tx_ring->num_desc;
if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
netif_stop_queue(netdev);
return NETDEV_TX_BUSY;
}
frag_count = skb_shinfo(skb)->nr_frags + 1;
/* 4 fragments per cmd des */
no_of_desc = (frag_count + 3) >> 2;
if (unlikely(qlcnic_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
netif_stop_queue(netdev);
smp_mb();
if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH)
netif_start_queue(netdev);
else {
adapter->stats.xmit_off++;
return NETDEV_TX_BUSY;
}
}
producer = tx_ring->producer;
pbuf = &tx_ring->cmd_buf_arr[producer];
pdev = adapter->pdev;
if (qlcnic_map_tx_skb(pdev, skb, pbuf)) {
adapter->stats.tx_dma_map_error++;
goto drop_packet;
}
pbuf->skb = skb;
pbuf->frag_count = frag_count;
first_desc = hwdesc = &tx_ring->desc_head[producer];
qlcnic_clear_cmddesc((u64 *)hwdesc);
qlcnic_set_tx_frags_len(first_desc, frag_count, skb->len);
qlcnic_set_tx_port(first_desc, adapter->portnum);
for (i = 0; i < frag_count; i++) {
k = i % 4;
if ((k == 0) && (i > 0)) {
/* move to next desc.*/
producer = get_next_index(producer, num_txd);
hwdesc = &tx_ring->desc_head[producer];
qlcnic_clear_cmddesc((u64 *)hwdesc);
tx_ring->cmd_buf_arr[producer].skb = NULL;
}
buffrag = &pbuf->frag_array[i];
hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
switch (k) {
case 0:
hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
break;
case 1:
hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
break;
case 2:
hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
break;
case 3:
hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
break;
}
}
tx_ring->producer = get_next_index(producer, num_txd);
qlcnic_tso_check(netdev, tx_ring, first_desc, skb);
qlcnic_update_cmd_producer(adapter, tx_ring);
adapter->stats.txbytes += skb->len;
adapter->stats.xmitcalled++;
return NETDEV_TX_OK;
drop_packet:
adapter->stats.txdropped++;
dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}
static int qlcnic_check_temp(struct qlcnic_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
u32 temp, temp_state, temp_val;
int rv = 0;
temp = QLCRD32(adapter, CRB_TEMP_STATE);
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->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->temp == QLCNIC_TEMP_WARN) {
dev_info(&netdev->dev,
"Device temperature is now %d degrees C"
" in normal range.\n", temp_val);
}
}
adapter->temp = temp_state;
return rv;
}
void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup)
{
struct net_device *netdev = adapter->netdev;
if (adapter->ahw.linkup && !linkup) {
netdev_info(netdev, "NIC Link is down\n");
adapter->ahw.linkup = 0;
if (netif_running(netdev)) {
netif_carrier_off(netdev);
netif_stop_queue(netdev);
}
} else if (!adapter->ahw.linkup && linkup) {
netdev_info(netdev, "NIC Link is up\n");
adapter->ahw.linkup = 1;
if (netif_running(netdev)) {
netif_carrier_on(netdev);
netif_wake_queue(netdev);
}
}
}
static void qlcnic_tx_timeout(struct net_device *netdev)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
if (test_bit(__QLCNIC_RESETTING, &adapter->state))
return;
dev_err(&netdev->dev, "transmit timeout, resetting.\n");
if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
adapter->need_fw_reset = 1;
else
adapter->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;
memset(stats, 0, sizeof(*stats));
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_clear_legacy_intr(struct qlcnic_adapter *adapter)
{
u32 status;
status = readl(adapter->isr_int_vec);
if (!(status & adapter->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->diag_cnt++;
qlcnic_enable_int(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 int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter)
{
u32 sw_consumer, hw_consumer;
int count = 0, i;
struct qlcnic_cmd_buffer *buffer;
struct pci_dev *pdev = adapter->pdev;
struct net_device *netdev = adapter->netdev;
struct qlcnic_skb_frag *frag;
int done;
struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
if (!spin_trylock(&adapter->tx_clean_lock))
return 1;
sw_consumer = tx_ring->sw_consumer;
hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
while (sw_consumer != hw_consumer) {
buffer = &tx_ring->cmd_buf_arr[sw_consumer];
if (buffer->skb) {
frag = &buffer->frag_array[0];
pci_unmap_single(pdev, frag->dma, frag->length,
PCI_DMA_TODEVICE);
frag->dma = 0ULL;
for (i = 1; i < buffer->frag_count; i++) {
frag++;
pci_unmap_page(pdev, frag->dma, frag->length,
PCI_DMA_TODEVICE);
frag->dma = 0ULL;
}
adapter->stats.xmitfinished++;
dev_kfree_skb_any(buffer->skb);
buffer->skb = NULL;
}
sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
if (++count >= MAX_STATUS_HANDLE)
break;
}
if (count && netif_running(netdev)) {
tx_ring->sw_consumer = sw_consumer;
smp_mb();
if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) {
if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) {
netif_wake_queue(netdev);
adapter->stats.xmit_on++;
}
}
adapter->tx_timeo_cnt = 0;
}
/*
* If everything is freed up to consumer then check if the ring is full
* If the ring is full then check if more needs to be freed and
* schedule the call back again.
*
* This happens when there are 2 CPUs. One could be freeing and the
* other filling it. If the ring is full when we get out of here and
* the card has already interrupted the host then the host can miss the
* interrupt.
*
* There is still a possible race condition and the host could miss an
* interrupt. The card has to take care of this.
*/
hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
done = (sw_consumer == hw_consumer);
spin_unlock(&adapter->tx_clean_lock);
return done;
}
static int qlcnic_poll(struct napi_struct *napi, int budget)
{
struct qlcnic_host_sds_ring *sds_ring =
container_of(napi, struct qlcnic_host_sds_ring, napi);
struct qlcnic_adapter *adapter = sds_ring->adapter;
int tx_complete;
int work_done;
tx_complete = qlcnic_process_cmd_ring(adapter);
work_done = qlcnic_process_rcv_ring(sds_ring, budget);
if ((work_done < budget) && tx_complete) {
napi_complete(&sds_ring->napi);
if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
qlcnic_enable_int(sds_ring);
}
return work_done;
}
static int qlcnic_rx_poll(struct napi_struct *napi, int budget)
{
struct qlcnic_host_sds_ring *sds_ring =
container_of(napi, struct qlcnic_host_sds_ring, napi);
struct qlcnic_adapter *adapter = sds_ring->adapter;
int work_done;
work_done = qlcnic_process_rcv_ring(sds_ring, budget);
if (work_done < budget) {
napi_complete(&sds_ring->napi);
if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
qlcnic_enable_int(sds_ring);
}
return work_done;
}
#ifdef CONFIG_NET_POLL_CONTROLLER
static void qlcnic_poll_controller(struct net_device *netdev)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
disable_irq(adapter->irq);
qlcnic_intr(adapter->irq, adapter);
enable_irq(adapter->irq);
}
#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;
QLCWR32(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 = QLCRD32(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);
QLCWR32(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 = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
qlcnic_api_unlock(adapter);
return 0;
}
static void
qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter)
{
u32 val;
if (qlcnic_api_lock(adapter))
goto err;
val = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT);
QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
QLCWR32(adapter, QLCNIC_CRB_DEV_REF_COUNT, val);
if (!(val & 0x11111111))
QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_COLD);
val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
qlcnic_api_unlock(adapter);
err:
adapter->fw_fail_cnt = 0;
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;
state = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
act = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT);
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 = QLCRD32(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 = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT);
if (!(val & (1 << (portnum * 4)))) {
QLC_DEV_SET_REF_CNT(val, portnum);
QLCWR32(adapter, QLCNIC_CRB_DEV_REF_COUNT, val);
}
prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
QLCDB(adapter, HW, "Device state = %u\n", prev_state);
switch (prev_state) {
case QLCNIC_DEV_COLD:
QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
QLCWR32(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 = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
QLC_DEV_SET_RST_RDY(val, portnum);
QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
break;
case QLCNIC_DEV_NEED_QUISCENT:
val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
QLC_DEV_SET_QSCNT_RDY(val, portnum);
QLCWR32(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 = QLCRD32(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 = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
QLC_DEV_CLR_RST_QSCNT(val, portnum);
QLCWR32(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;
if (qlcnic_api_lock(adapter))
goto err_ret;
dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
if (dev_state == QLCNIC_DEV_QUISCENT) {
qlcnic_api_unlock(adapter);
qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
FW_POLL_DELAY * 2);
return;
}
if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC) {
qlcnic_api_unlock(adapter);
goto wait_npar;
}
if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
dev_err(&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 = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
if (dev_state == QLCNIC_DEV_NEED_QUISCENT) {
QLCWR32(adapter, QLCNIC_CRB_DEV_STATE,
QLCNIC_DEV_QUISCENT);
qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
FW_POLL_DELAY * 2);
QLCDB(adapter, DRV, "Quiscing the driver\n");
qlcnic_idc_debug_info(adapter, 0);
qlcnic_api_unlock(adapter);
return;
}
if (dev_state == QLCNIC_DEV_NEED_RESET) {
QLCWR32(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);
}
qlcnic_api_unlock(adapter);
if (!adapter->nic_ops->start_firmware(adapter)) {
qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
return;
}
goto err_ret;
}
qlcnic_api_unlock(adapter);
wait_npar:
dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
switch (dev_state) {
case QLCNIC_DEV_READY:
if (!adapter->nic_ops->start_firmware(adapter)) {
qlcnic_schedule_work(adapter, qlcnic_attach_work, 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);
}
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);
qlcnic_down(adapter, netdev);
status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1);
if (status & QLCNIC_RCODE_FATAL_ERROR)
goto err_ret;
if (adapter->temp == QLCNIC_TEMP_PANIC)
goto err_ret;
if (qlcnic_set_drv_state(adapter, adapter->dev_state))
goto err_ret;
adapter->fw_wait_cnt = 0;
qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
return;
err_ret:
dev_err(&adapter->pdev->dev, "detach failed; status=%d temp=%d\n",
status, adapter->temp);
netif_device_attach(netdev);
qlcnic_clr_all_drv_state(adapter);
}
/*Transit NPAR state to NON Operational */
static void
qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
{
u32 state;
state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
if (state == QLCNIC_DEV_NPAR_NON_OPER)
return;
if (qlcnic_api_lock(adapter))
return;
QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER);
qlcnic_api_unlock(adapter);
}
/*Transit to RESET state from READY state only */
static void
qlcnic_dev_request_reset(struct qlcnic_adapter *adapter)
{
u32 state;
adapter->need_fw_reset = 1;
if (qlcnic_api_lock(adapter))
return;
state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
if (state == QLCNIC_DEV_READY) {
QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_RESET);
QLCDB(adapter, DRV, "NEED_RESET state set\n");
qlcnic_idc_debug_info(adapter, 0);
}
QLCWR32(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 (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
adapter->op_mode != QLCNIC_MGMT_FUNC)
return;
if (qlcnic_api_lock(adapter))
return;
QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_OPER);
QLCDB(adapter, DRV, "NPAR operational state set\n");
qlcnic_api_unlock(adapter);
}
static 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);
schedule_delayed_work(&adapter->fw_work, round_jiffies_relative(delay));
}
static void
qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter)
{
while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
msleep(10);
cancel_delayed_work_sync(&adapter->fw_work);
}
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;
if (netif_running(netdev)) {
if (qlcnic_up(adapter, netdev))
goto done;
qlcnic_config_indev_addr(netdev, NETDEV_UP);
}
done:
netif_device_attach(netdev);
adapter->fw_fail_cnt = 0;
clear_bit(__QLCNIC_RESETTING, &adapter->state);
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)
{
u32 state = 0, heartbit;
struct net_device *netdev = adapter->netdev;
if (qlcnic_check_temp(adapter))
goto detach;
if (adapter->need_fw_reset)
qlcnic_dev_request_reset(adapter);
state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
if (state == QLCNIC_DEV_NEED_RESET ||
state == QLCNIC_DEV_NEED_QUISCENT) {
qlcnic_set_npar_non_operational(adapter);
adapter->need_fw_reset = 1;
}
heartbit = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
if (heartbit != adapter->heartbit) {
adapter->heartbit = heartbit;
adapter->fw_fail_cnt = 0;
if (adapter->need_fw_reset)
goto detach;
if (adapter->reset_context &&
auto_fw_reset == AUTO_FW_RESET_ENABLED) {
qlcnic_reset_hw_context(adapter);
adapter->netdev->trans_start = jiffies;
}
return 0;
}
if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
return 0;
qlcnic_dev_request_reset(adapter);
if ((auto_fw_reset == AUTO_FW_RESET_ENABLED))
clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
dev_info(&netdev->dev, "firmware hang detected\n");
detach:
adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
QLCNIC_DEV_NEED_RESET;
if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
!test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) {
qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
QLCDB(adapter, DRV, "fw recovery scheduled.\n");
}
return 1;
}
static 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;
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_power_state(pdev, PCI_D0);
pci_set_master(pdev);
pci_restore_state(pdev);
first_func = qlcnic_is_first_func(pdev);
if (qlcnic_api_lock(adapter))
return -EINVAL;
if (adapter->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
adapter->need_fw_reset = 1;
set_bit(__QLCNIC_START_FW, &adapter->state);
QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
QLCDB(adapter, DRV, "Restarting fw\n");
}
qlcnic_api_unlock(adapter);
err = adapter->nic_ops->start_firmware(adapter);
if (err)
return err;
qlcnic_clr_drv_state(adapter);
qlcnic_setup_intr(adapter);
if (netif_running(netdev)) {
err = qlcnic_attach(adapter);
if (err) {
qlcnic_clr_all_drv_state(adapter);
clear_bit(__QLCNIC_AER, &adapter->state);
netif_device_attach(netdev);
return err;
}
err = qlcnic_up(adapter, netdev);
if (err)
goto done;
qlcnic_config_indev_addr(netdev, NETDEV_UP);
}
done:
netif_device_attach(netdev);
return err;
}
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 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_io_slot_reset(struct pci_dev *pdev)
{
return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
PCI_ERS_RESULT_RECOVERED;
}
static void qlcnic_io_resume(struct pci_dev *pdev)
{
struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
pci_cleanup_aer_uncorrect_error_status(pdev);
if (QLCRD32(adapter, QLCNIC_CRB_DEV_STATE) == QLCNIC_DEV_READY &&
test_and_clear_bit(__QLCNIC_AER, &adapter->state))
qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
FW_POLL_DELAY);
}
static int
qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
{
int err;
u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
u32 npar_state;
err = qlcnic_can_start_firmware(adapter);
if (err)
return err;
npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
msleep(1000);
npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
}
if (!npar_opt_timeo) {
dev_err(&adapter->pdev->dev,
"Waiting for NPAR state to opertional timeout\n");
return -EIO;
}
qlcnic_check_options(adapter);
adapter->need_fw_reset = 0;
return err;
}
static int
qlcnicvf_config_bridged_mode(struct qlcnic_adapter *adapter, u32 enable)
{
return -EOPNOTSUPP;
}
static int
qlcnicvf_config_led(struct qlcnic_adapter *adapter, u32 state, u32 rate)
{
return -EOPNOTSUPP;
}
static ssize_t
qlcnic_store_bridged_mode(struct device *dev,
struct device_attribute *attr, const char *buf, size_t len)
{
struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
unsigned long new;
int ret = -EINVAL;
if (!(adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG))
goto err_out;
if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
goto err_out;
if (strict_strtoul(buf, 2, &new))
goto err_out;
if (!adapter->nic_ops->config_bridged_mode(adapter, !!new))
ret = len;
err_out:
return ret;
}
static ssize_t
qlcnic_show_bridged_mode(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
int bridged_mode = 0;
if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
bridged_mode = !!(adapter->flags & QLCNIC_BRIDGE_ENABLED);
return sprintf(buf, "%d\n", bridged_mode);
}
static struct device_attribute dev_attr_bridged_mode = {
.attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
.show = qlcnic_show_bridged_mode,
.store = qlcnic_store_bridged_mode,
};
static ssize_t
qlcnic_store_diag_mode(struct device *dev,
struct device_attribute *attr, const char *buf, size_t len)
{
struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
unsigned long new;
if (strict_strtoul(buf, 2, &new))
return -EINVAL;
if (!!new != !!(adapter->flags & QLCNIC_DIAG_ENABLED))
adapter->flags ^= QLCNIC_DIAG_ENABLED;
return len;
}
static ssize_t
qlcnic_show_diag_mode(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
return sprintf(buf, "%d\n",
!!(adapter->flags & QLCNIC_DIAG_ENABLED));
}
static struct device_attribute dev_attr_diag_mode = {
.attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
.show = qlcnic_show_diag_mode,
.store = qlcnic_store_diag_mode,
};
static int
qlcnic_sysfs_validate_crb(struct qlcnic_adapter *adapter,
loff_t offset, size_t size)
{
size_t crb_size = 4;
if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
return -EIO;
if (offset < QLCNIC_PCI_CRBSPACE) {
if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM,
QLCNIC_PCI_CAMQM_END))
crb_size = 8;
else
return -EINVAL;
}
if ((size != crb_size) || (offset & (crb_size-1)))
return -EINVAL;
return 0;
}
static ssize_t
qlcnic_sysfs_read_crb(struct file *filp, struct kobject *kobj,
struct bin_attribute *attr,
char *buf, loff_t offset, size_t size)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
u32 data;
u64 qmdata;
int ret;
ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
if (ret != 0)
return ret;
if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
qlcnic_pci_camqm_read_2M(adapter, offset, &qmdata);
memcpy(buf, &qmdata, size);
} else {
data = QLCRD32(adapter, offset);
memcpy(buf, &data, size);
}
return size;
}
static ssize_t
qlcnic_sysfs_write_crb(struct file *filp, struct kobject *kobj,
struct bin_attribute *attr,
char *buf, loff_t offset, size_t size)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
u32 data;
u64 qmdata;
int ret;
ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
if (ret != 0)
return ret;
if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
memcpy(&qmdata, buf, size);
qlcnic_pci_camqm_write_2M(adapter, offset, qmdata);
} else {
memcpy(&data, buf, size);
QLCWR32(adapter, offset, data);
}
return size;
}
static int
qlcnic_sysfs_validate_mem(struct qlcnic_adapter *adapter,
loff_t offset, size_t size)
{
if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
return -EIO;
if ((size != 8) || (offset & 0x7))
return -EIO;
return 0;
}
static ssize_t
qlcnic_sysfs_read_mem(struct file *filp, struct kobject *kobj,
struct bin_attribute *attr,
char *buf, loff_t offset, size_t size)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
u64 data;
int ret;
ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
if (ret != 0)
return ret;
if (qlcnic_pci_mem_read_2M(adapter, offset, &data))
return -EIO;
memcpy(buf, &data, size);
return size;
}
static ssize_t
qlcnic_sysfs_write_mem(struct file *filp, struct kobject *kobj,
struct bin_attribute *attr,
char *buf, loff_t offset, size_t size)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
u64 data;
int ret;
ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
if (ret != 0)
return ret;
memcpy(&data, buf, size);
if (qlcnic_pci_mem_write_2M(adapter, offset, data))
return -EIO;
return size;
}
static struct bin_attribute bin_attr_crb = {
.attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
.size = 0,
.read = qlcnic_sysfs_read_crb,
.write = qlcnic_sysfs_write_crb,
};
static struct bin_attribute bin_attr_mem = {
.attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
.size = 0,
.read = qlcnic_sysfs_read_mem,
.write = qlcnic_sysfs_write_mem,
};
static int
validate_pm_config(struct qlcnic_adapter *adapter,
struct qlcnic_pm_func_cfg *pm_cfg, int count)
{
u8 src_pci_func, s_esw_id, d_esw_id;
u8 dest_pci_func;
int i;
for (i = 0; i < count; i++) {
src_pci_func = pm_cfg[i].pci_func;
dest_pci_func = pm_cfg[i].dest_npar;
if (src_pci_func >= QLCNIC_MAX_PCI_FUNC
|| dest_pci_func >= QLCNIC_MAX_PCI_FUNC)
return QL_STATUS_INVALID_PARAM;
if (adapter->npars[src_pci_func].type != QLCNIC_TYPE_NIC)
return QL_STATUS_INVALID_PARAM;
if (adapter->npars[dest_pci_func].type != QLCNIC_TYPE_NIC)
return QL_STATUS_INVALID_PARAM;
if (!IS_VALID_MODE(pm_cfg[i].action))
return QL_STATUS_INVALID_PARAM;
s_esw_id = adapter->npars[src_pci_func].phy_port;
d_esw_id = adapter->npars[dest_pci_func].phy_port;
if (s_esw_id != d_esw_id)
return QL_STATUS_INVALID_PARAM;
}
return 0;
}
static ssize_t
qlcnic_sysfs_write_pm_config(struct file *filp, struct kobject *kobj,
struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
struct qlcnic_pm_func_cfg *pm_cfg;
u32 id, action, pci_func;
int count, rem, i, ret;
count = size / sizeof(struct qlcnic_pm_func_cfg);
rem = size % sizeof(struct qlcnic_pm_func_cfg);
if (rem)
return QL_STATUS_INVALID_PARAM;
pm_cfg = (struct qlcnic_pm_func_cfg *) buf;
ret = validate_pm_config(adapter, pm_cfg, count);
if (ret)
return ret;
for (i = 0; i < count; i++) {
pci_func = pm_cfg[i].pci_func;
action = pm_cfg[i].action;
id = adapter->npars[pci_func].phy_port;
ret = qlcnic_config_port_mirroring(adapter, id,
action, pci_func);
if (ret)
return ret;
}
for (i = 0; i < count; i++) {
pci_func = pm_cfg[i].pci_func;
id = adapter->npars[pci_func].phy_port;
adapter->npars[pci_func].enable_pm = pm_cfg[i].action;
adapter->npars[pci_func].dest_npar = id;
}
return size;
}
static ssize_t
qlcnic_sysfs_read_pm_config(struct file *filp, struct kobject *kobj,
struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
struct qlcnic_pm_func_cfg pm_cfg[QLCNIC_MAX_PCI_FUNC];
int i;
if (size != sizeof(pm_cfg))
return QL_STATUS_INVALID_PARAM;
for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
continue;
pm_cfg[i].action = adapter->npars[i].enable_pm;
pm_cfg[i].dest_npar = 0;
pm_cfg[i].pci_func = i;
}
memcpy(buf, &pm_cfg, size);
return size;
}
static int
validate_esw_config(struct qlcnic_adapter *adapter,
struct qlcnic_esw_func_cfg *esw_cfg, int count)
{
u8 pci_func;
int i;
for (i = 0; i < count; i++) {
pci_func = esw_cfg[i].pci_func;
if (pci_func >= QLCNIC_MAX_PCI_FUNC)
return QL_STATUS_INVALID_PARAM;
if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
return QL_STATUS_INVALID_PARAM;
if (esw_cfg->host_vlan_tag == 1)
if (!IS_VALID_VLAN(esw_cfg[i].vlan_id))
return QL_STATUS_INVALID_PARAM;
if (!IS_VALID_MODE(esw_cfg[i].promisc_mode)
|| !IS_VALID_MODE(esw_cfg[i].host_vlan_tag)
|| !IS_VALID_MODE(esw_cfg[i].mac_learning)
|| !IS_VALID_MODE(esw_cfg[i].discard_tagged))
return QL_STATUS_INVALID_PARAM;
}
return 0;
}
static ssize_t
qlcnic_sysfs_write_esw_config(struct file *file, struct kobject *kobj,
struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
struct qlcnic_esw_func_cfg *esw_cfg;
int count, rem, i, ret;
u8 id, pci_func;
count = size / sizeof(struct qlcnic_esw_func_cfg);
rem = size % sizeof(struct qlcnic_esw_func_cfg);
if (rem)
return QL_STATUS_INVALID_PARAM;
esw_cfg = (struct qlcnic_esw_func_cfg *) buf;
ret = validate_esw_config(adapter, esw_cfg, count);
if (ret)
return ret;
for (i = 0; i < count; i++) {
pci_func = esw_cfg[i].pci_func;
id = adapter->npars[pci_func].phy_port;
ret = qlcnic_config_switch_port(adapter, id,
esw_cfg[i].host_vlan_tag,
esw_cfg[i].discard_tagged,
esw_cfg[i].promisc_mode,
esw_cfg[i].mac_learning,
esw_cfg[i].pci_func,
esw_cfg[i].vlan_id);
if (ret)
return ret;
}
for (i = 0; i < count; i++) {
pci_func = esw_cfg[i].pci_func;
adapter->npars[pci_func].promisc_mode = esw_cfg[i].promisc_mode;
adapter->npars[pci_func].mac_learning = esw_cfg[i].mac_learning;
adapter->npars[pci_func].vlan_id = esw_cfg[i].vlan_id;
adapter->npars[pci_func].discard_tagged =
esw_cfg[i].discard_tagged;
adapter->npars[pci_func].host_vlan_tag =
esw_cfg[i].host_vlan_tag;
}
return size;
}
static ssize_t
qlcnic_sysfs_read_esw_config(struct file *file, struct kobject *kobj,
struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
struct qlcnic_esw_func_cfg esw_cfg[QLCNIC_MAX_PCI_FUNC];
int i;
if (size != sizeof(esw_cfg))
return QL_STATUS_INVALID_PARAM;
for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
continue;
esw_cfg[i].host_vlan_tag = adapter->npars[i].host_vlan_tag;
esw_cfg[i].promisc_mode = adapter->npars[i].promisc_mode;
esw_cfg[i].discard_tagged = adapter->npars[i].discard_tagged;
esw_cfg[i].vlan_id = adapter->npars[i].vlan_id;
esw_cfg[i].mac_learning = adapter->npars[i].mac_learning;
}
memcpy(buf, &esw_cfg, size);
return size;
}
static int
validate_npar_config(struct qlcnic_adapter *adapter,
struct qlcnic_npar_func_cfg *np_cfg, int count)
{
u8 pci_func, i;
for (i = 0; i < count; i++) {
pci_func = np_cfg[i].pci_func;
if (pci_func >= QLCNIC_MAX_PCI_FUNC)
return QL_STATUS_INVALID_PARAM;
if (adapter->npars[pci_func].type != QLCNIC_TYPE_NIC)
return QL_STATUS_INVALID_PARAM;
if (!IS_VALID_BW(np_cfg[i].min_bw)
|| !IS_VALID_BW(np_cfg[i].max_bw)
|| !IS_VALID_RX_QUEUES(np_cfg[i].max_rx_queues)
|| !IS_VALID_TX_QUEUES(np_cfg[i].max_tx_queues))
return QL_STATUS_INVALID_PARAM;
}
return 0;
}
static ssize_t
qlcnic_sysfs_write_npar_config(struct file *file, struct kobject *kobj,
struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
struct qlcnic_info nic_info;
struct qlcnic_npar_func_cfg *np_cfg;
int i, count, rem, ret;
u8 pci_func;
count = size / sizeof(struct qlcnic_npar_func_cfg);
rem = size % sizeof(struct qlcnic_npar_func_cfg);
if (rem)
return QL_STATUS_INVALID_PARAM;
np_cfg = (struct qlcnic_npar_func_cfg *) buf;
ret = validate_npar_config(adapter, np_cfg, count);
if (ret)
return ret;
for (i = 0; i < count ; i++) {
pci_func = np_cfg[i].pci_func;
ret = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
if (ret)
return ret;
nic_info.pci_func = pci_func;
nic_info.min_tx_bw = np_cfg[i].min_bw;
nic_info.max_tx_bw = np_cfg[i].max_bw;
ret = qlcnic_set_nic_info(adapter, &nic_info);
if (ret)
return ret;
adapter->npars[i].min_bw = nic_info.min_tx_bw;
adapter->npars[i].max_bw = nic_info.max_tx_bw;
}
return size;
}
static ssize_t
qlcnic_sysfs_read_npar_config(struct file *file, struct kobject *kobj,
struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
struct qlcnic_info nic_info;
struct qlcnic_npar_func_cfg np_cfg[QLCNIC_MAX_PCI_FUNC];
int i, ret;
if (size != sizeof(np_cfg))
return QL_STATUS_INVALID_PARAM;
for (i = 0; i < QLCNIC_MAX_PCI_FUNC ; i++) {
if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
continue;
ret = qlcnic_get_nic_info(adapter, &nic_info, i);
if (ret)
return ret;
np_cfg[i].pci_func = i;
np_cfg[i].op_mode = nic_info.op_mode;
np_cfg[i].port_num = nic_info.phys_port;
np_cfg[i].fw_capab = nic_info.capabilities;
np_cfg[i].min_bw = nic_info.min_tx_bw ;
np_cfg[i].max_bw = nic_info.max_tx_bw;
np_cfg[i].max_tx_queues = nic_info.max_tx_ques;
np_cfg[i].max_rx_queues = nic_info.max_rx_ques;
}
memcpy(buf, &np_cfg, size);
return size;
}
static ssize_t
qlcnic_sysfs_get_port_stats(struct file *file, struct kobject *kobj,
struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
struct qlcnic_esw_statistics port_stats;
int ret;
if (size != sizeof(struct qlcnic_esw_statistics))
return QL_STATUS_INVALID_PARAM;
if (offset >= QLCNIC_MAX_PCI_FUNC)
return QL_STATUS_INVALID_PARAM;
memset(&port_stats, 0, size);
ret = qlcnic_get_port_stats(adapter, offset, QLCNIC_QUERY_RX_COUNTER,
&port_stats.rx);
if (ret)
return ret;
ret = qlcnic_get_port_stats(adapter, offset, QLCNIC_QUERY_TX_COUNTER,
&port_stats.tx);
if (ret)
return ret;
memcpy(buf, &port_stats, size);
return size;
}
static ssize_t
qlcnic_sysfs_get_esw_stats(struct file *file, struct kobject *kobj,
struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
struct qlcnic_esw_statistics esw_stats;
int ret;
if (size != sizeof(struct qlcnic_esw_statistics))
return QL_STATUS_INVALID_PARAM;
if (offset >= QLCNIC_NIU_MAX_XG_PORTS)
return QL_STATUS_INVALID_PARAM;
memset(&esw_stats, 0, size);
ret = qlcnic_get_eswitch_stats(adapter, offset, QLCNIC_QUERY_RX_COUNTER,
&esw_stats.rx);
if (ret)
return ret;
ret = qlcnic_get_eswitch_stats(adapter, offset, QLCNIC_QUERY_TX_COUNTER,
&esw_stats.tx);
if (ret)
return ret;
memcpy(buf, &esw_stats, size);
return size;
}
static ssize_t
qlcnic_sysfs_clear_esw_stats(struct file *file, struct kobject *kobj,
struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
int ret;
if (offset >= QLCNIC_NIU_MAX_XG_PORTS)
return QL_STATUS_INVALID_PARAM;
ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_ESWITCH, offset,
QLCNIC_QUERY_RX_COUNTER);
if (ret)
return ret;
ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_ESWITCH, offset,
QLCNIC_QUERY_TX_COUNTER);
if (ret)
return ret;
return size;
}
static ssize_t
qlcnic_sysfs_clear_port_stats(struct file *file, struct kobject *kobj,
struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
int ret;
if (offset >= QLCNIC_MAX_PCI_FUNC)
return QL_STATUS_INVALID_PARAM;
ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_PORT, offset,
QLCNIC_QUERY_RX_COUNTER);
if (ret)
return ret;
ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_PORT, offset,
QLCNIC_QUERY_TX_COUNTER);
if (ret)
return ret;
return size;
}
static ssize_t
qlcnic_sysfs_read_pci_config(struct file *file, struct kobject *kobj,
struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
struct qlcnic_pci_func_cfg pci_cfg[QLCNIC_MAX_PCI_FUNC];
struct qlcnic_pci_info *pci_info;
int i, ret;
if (size != sizeof(pci_cfg))
return QL_STATUS_INVALID_PARAM;
pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
if (!pci_info)
return -ENOMEM;
ret = qlcnic_get_pci_info(adapter, pci_info);
if (ret) {
kfree(pci_info);
return ret;
}
for (i = 0; i < QLCNIC_MAX_PCI_FUNC ; i++) {
pci_cfg[i].pci_func = pci_info[i].id;
pci_cfg[i].func_type = pci_info[i].type;
pci_cfg[i].port_num = pci_info[i].default_port;
pci_cfg[i].min_bw = pci_info[i].tx_min_bw;
pci_cfg[i].max_bw = pci_info[i].tx_max_bw;
memcpy(&pci_cfg[i].def_mac_addr, &pci_info[i].mac, ETH_ALEN);
}
memcpy(buf, &pci_cfg, size);
kfree(pci_info);
return size;
}
static struct bin_attribute bin_attr_npar_config = {
.attr = {.name = "npar_config", .mode = (S_IRUGO | S_IWUSR)},
.size = 0,
.read = qlcnic_sysfs_read_npar_config,
.write = qlcnic_sysfs_write_npar_config,
};
static struct bin_attribute bin_attr_pci_config = {
.attr = {.name = "pci_config", .mode = (S_IRUGO | S_IWUSR)},
.size = 0,
.read = qlcnic_sysfs_read_pci_config,
.write = NULL,
};
static struct bin_attribute bin_attr_port_stats = {
.attr = {.name = "port_stats", .mode = (S_IRUGO | S_IWUSR)},
.size = 0,
.read = qlcnic_sysfs_get_port_stats,
.write = qlcnic_sysfs_clear_port_stats,
};
static struct bin_attribute bin_attr_esw_stats = {
.attr = {.name = "esw_stats", .mode = (S_IRUGO | S_IWUSR)},
.size = 0,
.read = qlcnic_sysfs_get_esw_stats,
.write = qlcnic_sysfs_clear_esw_stats,
};
static struct bin_attribute bin_attr_esw_config = {
.attr = {.name = "esw_config", .mode = (S_IRUGO | S_IWUSR)},
.size = 0,
.read = qlcnic_sysfs_read_esw_config,
.write = qlcnic_sysfs_write_esw_config,
};
static struct bin_attribute bin_attr_pm_config = {
.attr = {.name = "pm_config", .mode = (S_IRUGO | S_IWUSR)},
.size = 0,
.read = qlcnic_sysfs_read_pm_config,
.write = qlcnic_sysfs_write_pm_config,
};
static void
qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter)
{
struct device *dev = &adapter->pdev->dev;
if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
if (device_create_file(dev, &dev_attr_bridged_mode))
dev_warn(dev,
"failed to create bridged_mode sysfs entry\n");
}
static void
qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter)
{
struct device *dev = &adapter->pdev->dev;
if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
device_remove_file(dev, &dev_attr_bridged_mode);
}
static void
qlcnic_create_diag_entries(struct qlcnic_adapter *adapter)
{
struct device *dev = &adapter->pdev->dev;
if (device_create_bin_file(dev, &bin_attr_port_stats))
dev_info(dev, "failed to create port stats sysfs entry");
if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC)
return;
if (device_create_file(dev, &dev_attr_diag_mode))
dev_info(dev, "failed to create diag_mode sysfs entry\n");
if (device_create_bin_file(dev, &bin_attr_crb))
dev_info(dev, "failed to create crb sysfs entry\n");
if (device_create_bin_file(dev, &bin_attr_mem))
dev_info(dev, "failed to create mem sysfs entry\n");
if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
adapter->op_mode != QLCNIC_MGMT_FUNC)
return;
if (device_create_bin_file(dev, &bin_attr_pci_config))
dev_info(dev, "failed to create pci config sysfs entry");
if (device_create_bin_file(dev, &bin_attr_npar_config))
dev_info(dev, "failed to create npar config sysfs entry");
if (device_create_bin_file(dev, &bin_attr_esw_config))
dev_info(dev, "failed to create esw config sysfs entry");
if (device_create_bin_file(dev, &bin_attr_pm_config))
dev_info(dev, "failed to create pm config sysfs entry");
if (device_create_bin_file(dev, &bin_attr_esw_stats))
dev_info(dev, "failed to create eswitch stats sysfs entry");
}
static void
qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter)
{
struct device *dev = &adapter->pdev->dev;
device_remove_bin_file(dev, &bin_attr_port_stats);
if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC)
return;
device_remove_file(dev, &dev_attr_diag_mode);
device_remove_bin_file(dev, &bin_attr_crb);
device_remove_bin_file(dev, &bin_attr_mem);
if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
adapter->op_mode != QLCNIC_MGMT_FUNC)
return;
device_remove_bin_file(dev, &bin_attr_pci_config);
device_remove_bin_file(dev, &bin_attr_npar_config);
device_remove_bin_file(dev, &bin_attr_esw_config);
device_remove_bin_file(dev, &bin_attr_pm_config);
device_remove_bin_file(dev, &bin_attr_esw_stats);
}
#ifdef CONFIG_INET
#define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
static void
qlcnic_config_indev_addr(struct net_device *dev, unsigned long event)
{
struct in_device *indev;
struct qlcnic_adapter *adapter = netdev_priv(dev);
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);
}
static int qlcnic_netdev_event(struct notifier_block *this,
unsigned long event, void *ptr)
{
struct qlcnic_adapter *adapter;
struct net_device *dev = (struct net_device *)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(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 || !netif_running(dev))
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
static void
qlcnic_config_indev_addr(struct net_device *dev, unsigned long event)
{ }
#endif
static 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 = __devexit_p(qlcnic_remove),
#ifdef CONFIG_PM
.suspend = qlcnic_suspend,
.resume = qlcnic_resume,
#endif
.shutdown = qlcnic_shutdown,
.err_handler = &qlcnic_err_handler
};
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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