Google Git
Sign in
kernel / pub / scm / linux / kernel / git / joro / linux / 7562523e84ddc742fe1f9db8bd76b01acca89f6b / . / drivers / net / ethernet / qlogic / qlcnic / qlcnic_83xx_init.c
blob: f41dfab1e9a35d3fc4b3d72c820b2d5db84f59e0 [file] [log] [blame]
/*
* QLogic qlcnic NIC Driver
* Copyright (c) 2009-2013 QLogic Corporation
*
* See LICENSE.qlcnic for copyright and licensing details.
*/
#include "qlcnic_sriov.h"
#include "qlcnic.h"
#include "qlcnic_hw.h"
/* Reset template definitions */
#define QLC_83XX_RESTART_TEMPLATE_SIZE 0x2000
#define QLC_83XX_RESET_TEMPLATE_ADDR 0x4F0000
#define QLC_83XX_RESET_SEQ_VERSION 0x0101
#define QLC_83XX_OPCODE_NOP 0x0000
#define QLC_83XX_OPCODE_WRITE_LIST 0x0001
#define QLC_83XX_OPCODE_READ_WRITE_LIST 0x0002
#define QLC_83XX_OPCODE_POLL_LIST 0x0004
#define QLC_83XX_OPCODE_POLL_WRITE_LIST 0x0008
#define QLC_83XX_OPCODE_READ_MODIFY_WRITE 0x0010
#define QLC_83XX_OPCODE_SEQ_PAUSE 0x0020
#define QLC_83XX_OPCODE_SEQ_END 0x0040
#define QLC_83XX_OPCODE_TMPL_END 0x0080
#define QLC_83XX_OPCODE_POLL_READ_LIST 0x0100
/* EPORT control registers */
#define QLC_83XX_RESET_CONTROL 0x28084E50
#define QLC_83XX_RESET_REG 0x28084E60
#define QLC_83XX_RESET_PORT0 0x28084E70
#define QLC_83XX_RESET_PORT1 0x28084E80
#define QLC_83XX_RESET_PORT2 0x28084E90
#define QLC_83XX_RESET_PORT3 0x28084EA0
#define QLC_83XX_RESET_SRESHIM 0x28084EB0
#define QLC_83XX_RESET_EPGSHIM 0x28084EC0
#define QLC_83XX_RESET_ETHERPCS 0x28084ED0
static int qlcnic_83xx_init_default_driver(struct qlcnic_adapter *adapter);
static int qlcnic_83xx_check_heartbeat(struct qlcnic_adapter *p_dev);
static int qlcnic_83xx_restart_hw(struct qlcnic_adapter *adapter);
/* Template header */
struct qlc_83xx_reset_hdr {
#if defined(__LITTLE_ENDIAN)
u16 version;
u16 signature;
u16 size;
u16 entries;
u16 hdr_size;
u16 checksum;
u16 init_offset;
u16 start_offset;
#elif defined(__BIG_ENDIAN)
u16 signature;
u16 version;
u16 entries;
u16 size;
u16 checksum;
u16 hdr_size;
u16 start_offset;
u16 init_offset;
#endif
} __packed;
/* Command entry header. */
struct qlc_83xx_entry_hdr {
#if defined(__LITTLE_ENDIAN)
u16 cmd;
u16 size;
u16 count;
u16 delay;
#elif defined(__BIG_ENDIAN)
u16 size;
u16 cmd;
u16 delay;
u16 count;
#endif
} __packed;
/* Generic poll command */
struct qlc_83xx_poll {
u32 mask;
u32 status;
} __packed;
/* Read modify write command */
struct qlc_83xx_rmw {
u32 mask;
u32 xor_value;
u32 or_value;
#if defined(__LITTLE_ENDIAN)
u8 shl;
u8 shr;
u8 index_a;
u8 rsvd;
#elif defined(__BIG_ENDIAN)
u8 rsvd;
u8 index_a;
u8 shr;
u8 shl;
#endif
} __packed;
/* Generic command with 2 DWORD */
struct qlc_83xx_entry {
u32 arg1;
u32 arg2;
} __packed;
/* Generic command with 4 DWORD */
struct qlc_83xx_quad_entry {
u32 dr_addr;
u32 dr_value;
u32 ar_addr;
u32 ar_value;
} __packed;
static const char *const qlc_83xx_idc_states[] = {
"Unknown",
"Cold",
"Init",
"Ready",
"Need Reset",
"Need Quiesce",
"Failed",
"Quiesce"
};
static int
qlcnic_83xx_idc_check_driver_presence_reg(struct qlcnic_adapter *adapter)
{
u32 val;
val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE);
if ((val & 0xFFFF))
return 1;
else
return 0;
}
static void qlcnic_83xx_idc_log_state_history(struct qlcnic_adapter *adapter)
{
u32 cur, prev;
cur = adapter->ahw->idc.curr_state;
prev = adapter->ahw->idc.prev_state;
dev_info(&adapter->pdev->dev,
"current state = %s, prev state = %s\n",
adapter->ahw->idc.name[cur],
adapter->ahw->idc.name[prev]);
}
static int qlcnic_83xx_idc_update_audit_reg(struct qlcnic_adapter *adapter,
u8 mode, int lock)
{
u32 val;
int seconds;
if (lock) {
if (qlcnic_83xx_lock_driver(adapter))
return -EBUSY;
}
val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_AUDIT);
val |= (adapter->portnum & 0xf);
val |= mode << 7;
if (mode)
seconds = jiffies / HZ - adapter->ahw->idc.sec_counter;
else
seconds = jiffies / HZ;
val |= seconds << 8;
QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_AUDIT, val);
adapter->ahw->idc.sec_counter = jiffies / HZ;
if (lock)
qlcnic_83xx_unlock_driver(adapter);
return 0;
}
static void qlcnic_83xx_idc_update_minor_version(struct qlcnic_adapter *adapter)
{
u32 val;
val = QLCRDX(adapter->ahw, QLC_83XX_IDC_MIN_VERSION);
val = val & ~(0x3 << (adapter->portnum * 2));
val = val | (QLC_83XX_IDC_MINOR_VERSION << (adapter->portnum * 2));
QLCWRX(adapter->ahw, QLC_83XX_IDC_MIN_VERSION, val);
}
static int qlcnic_83xx_idc_update_major_version(struct qlcnic_adapter *adapter,
int lock)
{
u32 val;
if (lock) {
if (qlcnic_83xx_lock_driver(adapter))
return -EBUSY;
}
val = QLCRDX(adapter->ahw, QLC_83XX_IDC_MAJ_VERSION);
val = val & ~0xFF;
val = val | QLC_83XX_IDC_MAJOR_VERSION;
QLCWRX(adapter->ahw, QLC_83XX_IDC_MAJ_VERSION, val);
if (lock)
qlcnic_83xx_unlock_driver(adapter);
return 0;
}
static int
qlcnic_83xx_idc_update_drv_presence_reg(struct qlcnic_adapter *adapter,
int status, int lock)
{
u32 val;
if (lock) {
if (qlcnic_83xx_lock_driver(adapter))
return -EBUSY;
}
val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE);
if (status)
val = val | (1 << adapter->portnum);
else
val = val & ~(1 << adapter->portnum);
QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE, val);
qlcnic_83xx_idc_update_minor_version(adapter);
if (lock)
qlcnic_83xx_unlock_driver(adapter);
return 0;
}
static int qlcnic_83xx_idc_check_major_version(struct qlcnic_adapter *adapter)
{
u32 val;
u8 version;
val = QLCRDX(adapter->ahw, QLC_83XX_IDC_MAJ_VERSION);
version = val & 0xFF;
if (version != QLC_83XX_IDC_MAJOR_VERSION) {
dev_info(&adapter->pdev->dev,
"%s:mismatch. version 0x%x, expected version 0x%x\n",
__func__, version, QLC_83XX_IDC_MAJOR_VERSION);
return -EIO;
}
return 0;
}
static int qlcnic_83xx_idc_clear_registers(struct qlcnic_adapter *adapter,
int lock)
{
u32 val;
if (lock) {
if (qlcnic_83xx_lock_driver(adapter))
return -EBUSY;
}
QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_ACK, 0);
/* Clear gracefull reset bit */
val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL);
val &= ~QLC_83XX_IDC_GRACEFULL_RESET;
QLCWRX(adapter->ahw, QLC_83XX_IDC_CTRL, val);
if (lock)
qlcnic_83xx_unlock_driver(adapter);
return 0;
}
static int qlcnic_83xx_idc_update_drv_ack_reg(struct qlcnic_adapter *adapter,
int flag, int lock)
{
u32 val;
if (lock) {
if (qlcnic_83xx_lock_driver(adapter))
return -EBUSY;
}
val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_ACK);
if (flag)
val = val | (1 << adapter->portnum);
else
val = val & ~(1 << adapter->portnum);
QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_ACK, val);
if (lock)
qlcnic_83xx_unlock_driver(adapter);
return 0;
}
static int qlcnic_83xx_idc_check_timeout(struct qlcnic_adapter *adapter,
int time_limit)
{
u64 seconds;
seconds = jiffies / HZ - adapter->ahw->idc.sec_counter;
if (seconds <= time_limit)
return 0;
else
return -EBUSY;
}
/**
* qlcnic_83xx_idc_check_reset_ack_reg
*
* @adapter: adapter structure
*
* Check ACK wait limit and clear the functions which failed to ACK
*
* Return 0 if all functions have acknowledged the reset request.
**/
static int qlcnic_83xx_idc_check_reset_ack_reg(struct qlcnic_adapter *adapter)
{
int timeout;
u32 ack, presence, val;
timeout = QLC_83XX_IDC_RESET_TIMEOUT_SECS;
ack = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_ACK);
presence = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE);
dev_info(&adapter->pdev->dev,
"%s: ack = 0x%x, presence = 0x%x\n", __func__, ack, presence);
if (!((ack & presence) == presence)) {
if (qlcnic_83xx_idc_check_timeout(adapter, timeout)) {
/* Clear functions which failed to ACK */
dev_info(&adapter->pdev->dev,
"%s: ACK wait exceeds time limit\n", __func__);
val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE);
val = val & ~(ack ^ presence);
if (qlcnic_83xx_lock_driver(adapter))
return -EBUSY;
QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE, val);
dev_info(&adapter->pdev->dev,
"%s: updated drv presence reg = 0x%x\n",
__func__, val);
qlcnic_83xx_unlock_driver(adapter);
return 0;
} else {
return 1;
}
} else {
dev_info(&adapter->pdev->dev,
"%s: Reset ACK received from all functions\n",
__func__);
return 0;
}
}
/**
* qlcnic_83xx_idc_tx_soft_reset
*
* @adapter: adapter structure
*
* Handle context deletion and recreation request from transmit routine
*
* Returns -EBUSY or Success (0)
*
**/
static int qlcnic_83xx_idc_tx_soft_reset(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);
dev_err(&adapter->pdev->dev, "%s:\n", __func__);
return 0;
}
/**
* qlcnic_83xx_idc_detach_driver
*
* @adapter: adapter structure
* Detach net interface, stop TX and cleanup resources before the HW reset.
* Returns: None
*
**/
static void qlcnic_83xx_idc_detach_driver(struct qlcnic_adapter *adapter)
{
int i;
struct net_device *netdev = adapter->netdev;
netif_device_detach(netdev);
/* Disable mailbox interrupt */
qlcnic_83xx_disable_mbx_intr(adapter);
qlcnic_down(adapter, netdev);
for (i = 0; i < adapter->ahw->num_msix; i++) {
adapter->ahw->intr_tbl[i].id = i;
adapter->ahw->intr_tbl[i].enabled = 0;
adapter->ahw->intr_tbl[i].src = 0;
}
if (qlcnic_sriov_pf_check(adapter))
qlcnic_sriov_pf_reset(adapter);
}
/**
* qlcnic_83xx_idc_attach_driver
*
* @adapter: adapter structure
*
* Re-attach and re-enable net interface
* Returns: None
*
**/
static void qlcnic_83xx_idc_attach_driver(struct qlcnic_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
if (netif_running(netdev)) {
if (qlcnic_up(adapter, netdev))
goto done;
qlcnic_restore_indev_addr(netdev, NETDEV_UP);
}
done:
netif_device_attach(netdev);
}
static int qlcnic_83xx_idc_enter_failed_state(struct qlcnic_adapter *adapter,
int lock)
{
if (lock) {
if (qlcnic_83xx_lock_driver(adapter))
return -EBUSY;
}
qlcnic_83xx_idc_clear_registers(adapter, 0);
QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE, QLC_83XX_IDC_DEV_FAILED);
if (lock)
qlcnic_83xx_unlock_driver(adapter);
qlcnic_83xx_idc_log_state_history(adapter);
dev_info(&adapter->pdev->dev, "Device will enter failed state\n");
return 0;
}
static int qlcnic_83xx_idc_enter_init_state(struct qlcnic_adapter *adapter,
int lock)
{
if (lock) {
if (qlcnic_83xx_lock_driver(adapter))
return -EBUSY;
}
QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE, QLC_83XX_IDC_DEV_INIT);
if (lock)
qlcnic_83xx_unlock_driver(adapter);
return 0;
}
static int qlcnic_83xx_idc_enter_need_quiesce(struct qlcnic_adapter *adapter,
int lock)
{
if (lock) {
if (qlcnic_83xx_lock_driver(adapter))
return -EBUSY;
}
QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE,
QLC_83XX_IDC_DEV_NEED_QUISCENT);
if (lock)
qlcnic_83xx_unlock_driver(adapter);
return 0;
}
static int
qlcnic_83xx_idc_enter_need_reset_state(struct qlcnic_adapter *adapter, int lock)
{
if (lock) {
if (qlcnic_83xx_lock_driver(adapter))
return -EBUSY;
}
QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE,
QLC_83XX_IDC_DEV_NEED_RESET);
if (lock)
qlcnic_83xx_unlock_driver(adapter);
return 0;
}
static int qlcnic_83xx_idc_enter_ready_state(struct qlcnic_adapter *adapter,
int lock)
{
if (lock) {
if (qlcnic_83xx_lock_driver(adapter))
return -EBUSY;
}
QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE, QLC_83XX_IDC_DEV_READY);
if (lock)
qlcnic_83xx_unlock_driver(adapter);
return 0;
}
/**
* qlcnic_83xx_idc_find_reset_owner_id
*
* @adapter: adapter structure
*
* NIC gets precedence over ISCSI and ISCSI has precedence over FCOE.
* Within the same class, function with lowest PCI ID assumes ownership
*
* Returns: reset owner id or failure indication (-EIO)
*
**/
static int qlcnic_83xx_idc_find_reset_owner_id(struct qlcnic_adapter *adapter)
{
u32 reg, reg1, reg2, i, j, owner, class;
reg1 = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_PARTITION_INFO_1);
reg2 = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_PARTITION_INFO_2);
owner = QLCNIC_TYPE_NIC;
i = 0;
j = 0;
reg = reg1;
do {
class = (((reg & (0xF << j * 4)) >> j * 4) & 0x3);
if (class == owner)
break;
if (i == (QLC_83XX_IDC_MAX_FUNC_PER_PARTITION_INFO - 1)) {
reg = reg2;
j = 0;
} else {
j++;
}
if (i == (QLC_83XX_IDC_MAX_CNA_FUNCTIONS - 1)) {
if (owner == QLCNIC_TYPE_NIC)
owner = QLCNIC_TYPE_ISCSI;
else if (owner == QLCNIC_TYPE_ISCSI)
owner = QLCNIC_TYPE_FCOE;
else if (owner == QLCNIC_TYPE_FCOE)
return -EIO;
reg = reg1;
j = 0;
i = 0;
}
} while (i++ < QLC_83XX_IDC_MAX_CNA_FUNCTIONS);
return i;
}
static int qlcnic_83xx_idc_restart_hw(struct qlcnic_adapter *adapter, int lock)
{
int ret = 0;
ret = qlcnic_83xx_restart_hw(adapter);
if (ret) {
qlcnic_83xx_idc_enter_failed_state(adapter, lock);
} else {
qlcnic_83xx_idc_clear_registers(adapter, lock);
ret = qlcnic_83xx_idc_enter_ready_state(adapter, lock);
}
return ret;
}
static int qlcnic_83xx_idc_check_fan_failure(struct qlcnic_adapter *adapter)
{
u32 status;
status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
if (status & QLCNIC_RCODE_FATAL_ERROR) {
dev_err(&adapter->pdev->dev,
"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");
return -EIO;
}
}
return 0;
}
int qlcnic_83xx_idc_reattach_driver(struct qlcnic_adapter *adapter)
{
int err;
/* register for NIC IDC AEN Events */
qlcnic_83xx_register_nic_idc_func(adapter, 1);
err = qlcnic_sriov_pf_reinit(adapter);
if (err)
return err;
qlcnic_83xx_enable_mbx_intrpt(adapter);
if (qlcnic_83xx_configure_opmode(adapter)) {
qlcnic_83xx_idc_enter_failed_state(adapter, 1);
return -EIO;
}
if (adapter->nic_ops->init_driver(adapter)) {
qlcnic_83xx_idc_enter_failed_state(adapter, 1);
return -EIO;
}
qlcnic_set_drv_version(adapter);
qlcnic_83xx_idc_attach_driver(adapter);
return 0;
}
static void qlcnic_83xx_idc_update_idc_params(struct qlcnic_adapter *adapter)
{
struct qlcnic_hardware_context *ahw = adapter->ahw;
qlcnic_83xx_idc_update_drv_presence_reg(adapter, 1, 1);
set_bit(QLC_83XX_MBX_READY, &adapter->ahw->idc.status);
qlcnic_83xx_idc_update_audit_reg(adapter, 0, 1);
set_bit(QLC_83XX_MODULE_LOADED, &adapter->ahw->idc.status);
ahw->idc.quiesce_req = 0;
ahw->idc.delay = QLC_83XX_IDC_FW_POLL_DELAY;
ahw->idc.err_code = 0;
ahw->idc.collect_dump = 0;
ahw->reset_context = 0;
adapter->tx_timeo_cnt = 0;
ahw->idc.delay_reset = 0;
clear_bit(__QLCNIC_RESETTING, &adapter->state);
}
/**
* qlcnic_83xx_idc_ready_state_entry
*
* @adapter: adapter structure
*
* Perform ready state initialization, this routine will get invoked only
* once from READY state.
*
* Returns: Error code or Success(0)
*
**/
int qlcnic_83xx_idc_ready_state_entry(struct qlcnic_adapter *adapter)
{
struct qlcnic_hardware_context *ahw = adapter->ahw;
if (ahw->idc.prev_state != QLC_83XX_IDC_DEV_READY) {
qlcnic_83xx_idc_update_idc_params(adapter);
/* Re-attach the device if required */
if ((ahw->idc.prev_state == QLC_83XX_IDC_DEV_NEED_RESET) ||
(ahw->idc.prev_state == QLC_83XX_IDC_DEV_INIT)) {
if (qlcnic_83xx_idc_reattach_driver(adapter))
return -EIO;
}
}
return 0;
}
/**
* qlcnic_83xx_idc_vnic_pf_entry
*
* @adapter: adapter structure
*
* Ensure vNIC mode privileged function starts only after vNIC mode is
* enabled by management function.
* If vNIC mode is ready, start initialization.
*
* Returns: -EIO or 0
*
**/
int qlcnic_83xx_idc_vnic_pf_entry(struct qlcnic_adapter *adapter)
{
u32 state;
struct qlcnic_hardware_context *ahw = adapter->ahw;
/* Privileged function waits till mgmt function enables VNIC mode */
state = QLCRDX(adapter->ahw, QLC_83XX_VNIC_STATE);
if (state != QLCNIC_DEV_NPAR_OPER) {
if (!ahw->idc.vnic_wait_limit--) {
qlcnic_83xx_idc_enter_failed_state(adapter, 1);
return -EIO;
}
dev_info(&adapter->pdev->dev, "vNIC mode disabled\n");
return -EIO;
} else {
/* Perform one time initialization from ready state */
if (ahw->idc.vnic_state != QLCNIC_DEV_NPAR_OPER) {
qlcnic_83xx_idc_update_idc_params(adapter);
/* If the previous state is UNKNOWN, device will be
already attached properly by Init routine*/
if (ahw->idc.prev_state != QLC_83XX_IDC_DEV_UNKNOWN) {
if (qlcnic_83xx_idc_reattach_driver(adapter))
return -EIO;
}
adapter->ahw->idc.vnic_state = QLCNIC_DEV_NPAR_OPER;
dev_info(&adapter->pdev->dev, "vNIC mode enabled\n");
}
}
return 0;
}
static int qlcnic_83xx_idc_unknown_state(struct qlcnic_adapter *adapter)
{
adapter->ahw->idc.err_code = -EIO;
dev_err(&adapter->pdev->dev,
"%s: Device in unknown state\n", __func__);
return 0;
}
/**
* qlcnic_83xx_idc_cold_state
*
* @adapter: adapter structure
*
* If HW is up and running device will enter READY state.
* If firmware image from host needs to be loaded, device is
* forced to start with the file firmware image.
*
* Returns: Error code or Success(0)
*
**/
static int qlcnic_83xx_idc_cold_state_handler(struct qlcnic_adapter *adapter)
{
qlcnic_83xx_idc_update_drv_presence_reg(adapter, 1, 0);
qlcnic_83xx_idc_update_audit_reg(adapter, 1, 0);
if (qlcnic_load_fw_file) {
qlcnic_83xx_idc_restart_hw(adapter, 0);
} else {
if (qlcnic_83xx_check_hw_status(adapter)) {
qlcnic_83xx_idc_enter_failed_state(adapter, 0);
return -EIO;
} else {
qlcnic_83xx_idc_enter_ready_state(adapter, 0);
}
}
return 0;
}
/**
* qlcnic_83xx_idc_init_state
*
* @adapter: adapter structure
*
* Reset owner will restart the device from this state.
* Device will enter failed state if it remains
* in this state for more than DEV_INIT time limit.
*
* Returns: Error code or Success(0)
*
**/
static int qlcnic_83xx_idc_init_state(struct qlcnic_adapter *adapter)
{
int timeout, ret = 0;
u32 owner;
timeout = QLC_83XX_IDC_INIT_TIMEOUT_SECS;
if (adapter->ahw->idc.prev_state == QLC_83XX_IDC_DEV_NEED_RESET) {
owner = qlcnic_83xx_idc_find_reset_owner_id(adapter);
if (adapter->ahw->pci_func == owner)
ret = qlcnic_83xx_idc_restart_hw(adapter, 1);
} else {
ret = qlcnic_83xx_idc_check_timeout(adapter, timeout);
return ret;
}
return ret;
}
/**
* qlcnic_83xx_idc_ready_state
*
* @adapter: adapter structure
*
* Perform IDC protocol specicifed actions after monitoring device state and
* events.
*
* Returns: Error code or Success(0)
*
**/
static int qlcnic_83xx_idc_ready_state(struct qlcnic_adapter *adapter)
{
u32 val;
struct qlcnic_hardware_context *ahw = adapter->ahw;
int ret = 0;
/* Perform NIC configuration based ready state entry actions */
if (ahw->idc.state_entry(adapter))
return -EIO;
if (qlcnic_check_temp(adapter)) {
if (ahw->temp == QLCNIC_TEMP_PANIC) {
qlcnic_83xx_idc_check_fan_failure(adapter);
dev_err(&adapter->pdev->dev,
"Error: device temperature %d above limits\n",
adapter->ahw->temp);
clear_bit(QLC_83XX_MBX_READY, &ahw->idc.status);
set_bit(__QLCNIC_RESETTING, &adapter->state);
qlcnic_83xx_idc_detach_driver(adapter);
qlcnic_83xx_idc_enter_failed_state(adapter, 1);
return -EIO;
}
}
val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL);
ret = qlcnic_83xx_check_heartbeat(adapter);
if (ret) {
adapter->flags |= QLCNIC_FW_HANG;
if (!(val & QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY)) {
clear_bit(QLC_83XX_MBX_READY, &ahw->idc.status);
set_bit(__QLCNIC_RESETTING, &adapter->state);
qlcnic_83xx_idc_enter_need_reset_state(adapter, 1);
}
return -EIO;
}
if ((val & QLC_83XX_IDC_GRACEFULL_RESET) || ahw->idc.collect_dump) {
/* Move to need reset state and prepare for reset */
qlcnic_83xx_idc_enter_need_reset_state(adapter, 1);
return ret;
}
/* Check for soft reset request */
if (ahw->reset_context &&
!(val & QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY)) {
adapter->ahw->reset_context = 0;
qlcnic_83xx_idc_tx_soft_reset(adapter);
return ret;
}
/* Move to need quiesce state if requested */
if (adapter->ahw->idc.quiesce_req) {
qlcnic_83xx_idc_enter_need_quiesce(adapter, 1);
qlcnic_83xx_idc_update_audit_reg(adapter, 0, 1);
return ret;
}
return ret;
}
/**
* qlcnic_83xx_idc_need_reset_state
*
* @adapter: adapter structure
*
* Device will remain in this state until:
* Reset request ACK's are recieved from all the functions
* Wait time exceeds max time limit
*
* Returns: Error code or Success(0)
*
**/
static int qlcnic_83xx_idc_need_reset_state(struct qlcnic_adapter *adapter)
{
int ret = 0;
if (adapter->ahw->idc.prev_state != QLC_83XX_IDC_DEV_NEED_RESET) {
qlcnic_83xx_idc_update_audit_reg(adapter, 0, 1);
set_bit(__QLCNIC_RESETTING, &adapter->state);
clear_bit(QLC_83XX_MBX_READY, &adapter->ahw->idc.status);
if (adapter->ahw->nic_mode == QLC_83XX_VIRTUAL_NIC_MODE)
qlcnic_83xx_disable_vnic_mode(adapter, 1);
if (qlcnic_check_diag_status(adapter)) {
dev_info(&adapter->pdev->dev,
"%s: Wait for diag completion\n", __func__);
adapter->ahw->idc.delay_reset = 1;
return 0;
} else {
qlcnic_83xx_idc_update_drv_ack_reg(adapter, 1, 1);
qlcnic_83xx_idc_detach_driver(adapter);
}
}
if (qlcnic_check_diag_status(adapter)) {
dev_info(&adapter->pdev->dev,
"%s: Wait for diag completion\n", __func__);
return -1;
} else {
if (adapter->ahw->idc.delay_reset) {
qlcnic_83xx_idc_update_drv_ack_reg(adapter, 1, 1);
qlcnic_83xx_idc_detach_driver(adapter);
adapter->ahw->idc.delay_reset = 0;
}
/* Check for ACK from other functions */
ret = qlcnic_83xx_idc_check_reset_ack_reg(adapter);
if (ret) {
dev_info(&adapter->pdev->dev,
"%s: Waiting for reset ACK\n", __func__);
return -1;
}
}
/* Transit to INIT state and restart the HW */
qlcnic_83xx_idc_enter_init_state(adapter, 1);
return ret;
}
static int qlcnic_83xx_idc_need_quiesce_state(struct qlcnic_adapter *adapter)
{
dev_err(&adapter->pdev->dev, "%s: TBD\n", __func__);
return 0;
}
static int qlcnic_83xx_idc_failed_state(struct qlcnic_adapter *adapter)
{
dev_err(&adapter->pdev->dev, "%s: please restart!!\n", __func__);
clear_bit(__QLCNIC_RESETTING, &adapter->state);
adapter->ahw->idc.err_code = -EIO;
return 0;
}
static int qlcnic_83xx_idc_quiesce_state(struct qlcnic_adapter *adapter)
{
dev_info(&adapter->pdev->dev, "%s: TBD\n", __func__);
return 0;
}
static int qlcnic_83xx_idc_check_state_validity(struct qlcnic_adapter *adapter,
u32 state)
{
u32 cur, prev, next;
cur = adapter->ahw->idc.curr_state;
prev = adapter->ahw->idc.prev_state;
next = state;
if ((next < QLC_83XX_IDC_DEV_COLD) ||
(next > QLC_83XX_IDC_DEV_QUISCENT)) {
dev_err(&adapter->pdev->dev,
"%s: curr %d, prev %d, next state %d is invalid\n",
__func__, cur, prev, state);
return 1;
}
if ((cur == QLC_83XX_IDC_DEV_UNKNOWN) &&
(prev == QLC_83XX_IDC_DEV_UNKNOWN)) {
if ((next != QLC_83XX_IDC_DEV_COLD) &&
(next != QLC_83XX_IDC_DEV_READY)) {
dev_err(&adapter->pdev->dev,
"%s: failed, cur %d prev %d next %d\n",
__func__, cur, prev, next);
return 1;
}
}
if (next == QLC_83XX_IDC_DEV_INIT) {
if ((prev != QLC_83XX_IDC_DEV_INIT) &&
(prev != QLC_83XX_IDC_DEV_COLD) &&
(prev != QLC_83XX_IDC_DEV_NEED_RESET)) {
dev_err(&adapter->pdev->dev,
"%s: failed, cur %d prev %d next %d\n",
__func__, cur, prev, next);
return 1;
}
}
return 0;
}
static void qlcnic_83xx_periodic_tasks(struct qlcnic_adapter *adapter)
{
if (adapter->fhash.fnum)
qlcnic_prune_lb_filters(adapter);
}
/**
* qlcnic_83xx_idc_poll_dev_state
*
* @work: kernel work queue structure used to schedule the function
*
* Poll device state periodically and perform state specific
* actions defined by Inter Driver Communication (IDC) protocol.
*
* Returns: None
*
**/
void qlcnic_83xx_idc_poll_dev_state(struct work_struct *work)
{
struct qlcnic_adapter *adapter;
u32 state;
adapter = container_of(work, struct qlcnic_adapter, fw_work.work);
state = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_STATE);
if (qlcnic_83xx_idc_check_state_validity(adapter, state)) {
qlcnic_83xx_idc_log_state_history(adapter);
adapter->ahw->idc.curr_state = QLC_83XX_IDC_DEV_UNKNOWN;
} else {
adapter->ahw->idc.curr_state = state;
}
switch (adapter->ahw->idc.curr_state) {
case QLC_83XX_IDC_DEV_READY:
qlcnic_83xx_idc_ready_state(adapter);
break;
case QLC_83XX_IDC_DEV_NEED_RESET:
qlcnic_83xx_idc_need_reset_state(adapter);
break;
case QLC_83XX_IDC_DEV_NEED_QUISCENT:
qlcnic_83xx_idc_need_quiesce_state(adapter);
break;
case QLC_83XX_IDC_DEV_FAILED:
qlcnic_83xx_idc_failed_state(adapter);
return;
case QLC_83XX_IDC_DEV_INIT:
qlcnic_83xx_idc_init_state(adapter);
break;
case QLC_83XX_IDC_DEV_QUISCENT:
qlcnic_83xx_idc_quiesce_state(adapter);
break;
default:
qlcnic_83xx_idc_unknown_state(adapter);
return;
}
adapter->ahw->idc.prev_state = adapter->ahw->idc.curr_state;
qlcnic_83xx_periodic_tasks(adapter);
/* Re-schedule the function */
if (test_bit(QLC_83XX_MODULE_LOADED, &adapter->ahw->idc.status))
qlcnic_schedule_work(adapter, qlcnic_83xx_idc_poll_dev_state,
adapter->ahw->idc.delay);
}
static void qlcnic_83xx_setup_idc_parameters(struct qlcnic_adapter *adapter)
{
u32 idc_params, val;
if (qlcnic_83xx_lockless_flash_read32(adapter,
QLC_83XX_IDC_FLASH_PARAM_ADDR,
(u8 *)&idc_params, 1)) {
dev_info(&adapter->pdev->dev,
"%s:failed to get IDC params from flash\n", __func__);
adapter->dev_init_timeo = QLC_83XX_IDC_INIT_TIMEOUT_SECS;
adapter->reset_ack_timeo = QLC_83XX_IDC_RESET_TIMEOUT_SECS;
} else {
adapter->dev_init_timeo = idc_params & 0xFFFF;
adapter->reset_ack_timeo = ((idc_params >> 16) & 0xFFFF);
}
adapter->ahw->idc.curr_state = QLC_83XX_IDC_DEV_UNKNOWN;
adapter->ahw->idc.prev_state = QLC_83XX_IDC_DEV_UNKNOWN;
adapter->ahw->idc.delay = QLC_83XX_IDC_FW_POLL_DELAY;
adapter->ahw->idc.err_code = 0;
adapter->ahw->idc.collect_dump = 0;
adapter->ahw->idc.name = (char **)qlc_83xx_idc_states;
clear_bit(__QLCNIC_RESETTING, &adapter->state);
set_bit(QLC_83XX_MBX_READY, &adapter->ahw->idc.status);
set_bit(QLC_83XX_MODULE_LOADED, &adapter->ahw->idc.status);
/* Check if reset recovery is disabled */
if (!qlcnic_auto_fw_reset) {
/* Propagate do not reset request to other functions */
val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL);
val = val | QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY;
QLCWRX(adapter->ahw, QLC_83XX_IDC_CTRL, val);
}
}
static int
qlcnic_83xx_idc_first_to_load_function_handler(struct qlcnic_adapter *adapter)
{
u32 state, val;
if (qlcnic_83xx_lock_driver(adapter))
return -EIO;
/* Clear driver lock register */
QLCWRX(adapter->ahw, QLC_83XX_RECOVER_DRV_LOCK, 0);
if (qlcnic_83xx_idc_update_major_version(adapter, 0)) {
qlcnic_83xx_unlock_driver(adapter);
return -EIO;
}
state = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_STATE);
if (qlcnic_83xx_idc_check_state_validity(adapter, state)) {
qlcnic_83xx_unlock_driver(adapter);
return -EIO;
}
if (state != QLC_83XX_IDC_DEV_COLD && qlcnic_load_fw_file) {
QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE,
QLC_83XX_IDC_DEV_COLD);
state = QLC_83XX_IDC_DEV_COLD;
}
adapter->ahw->idc.curr_state = state;
/* First to load function should cold boot the device */
if (state == QLC_83XX_IDC_DEV_COLD)
qlcnic_83xx_idc_cold_state_handler(adapter);
/* Check if reset recovery is enabled */
if (qlcnic_auto_fw_reset) {
val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL);
val = val & ~QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY;
QLCWRX(adapter->ahw, QLC_83XX_IDC_CTRL, val);
}
qlcnic_83xx_unlock_driver(adapter);
return 0;
}
int qlcnic_83xx_idc_init(struct qlcnic_adapter *adapter)
{
int ret = -EIO;
qlcnic_83xx_setup_idc_parameters(adapter);
if (qlcnic_83xx_get_reset_instruction_template(adapter))
return ret;
if (!qlcnic_83xx_idc_check_driver_presence_reg(adapter)) {
if (qlcnic_83xx_idc_first_to_load_function_handler(adapter))
return -EIO;
} else {
if (qlcnic_83xx_idc_check_major_version(adapter))
return -EIO;
}
qlcnic_83xx_idc_update_audit_reg(adapter, 0, 1);
return 0;
}
void qlcnic_83xx_idc_exit(struct qlcnic_adapter *adapter)
{
int id;
u32 val;
while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
usleep_range(10000, 11000);
id = QLCRDX(adapter->ahw, QLC_83XX_DRV_LOCK_ID);
id = id & 0xFF;
if (id == adapter->portnum) {
dev_err(&adapter->pdev->dev,
"%s: wait for lock recovery.. %d\n", __func__, id);
msleep(20);
id = QLCRDX(adapter->ahw, QLC_83XX_DRV_LOCK_ID);
id = id & 0xFF;
}
/* Clear driver presence bit */
val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE);
val = val & ~(1 << adapter->portnum);
QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE, val);
clear_bit(QLC_83XX_MODULE_LOADED, &adapter->ahw->idc.status);
clear_bit(__QLCNIC_RESETTING, &adapter->state);
cancel_delayed_work_sync(&adapter->fw_work);
}
void qlcnic_83xx_idc_request_reset(struct qlcnic_adapter *adapter, u32 key)
{
u32 val;
if (qlcnic_83xx_lock_driver(adapter)) {
dev_err(&adapter->pdev->dev,
"%s:failed, please retry\n", __func__);
return;
}
val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL);
if ((val & QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY) ||
!qlcnic_auto_fw_reset) {
dev_err(&adapter->pdev->dev,
"%s:failed, device in non reset mode\n", __func__);
qlcnic_83xx_unlock_driver(adapter);
return;
}
if (key == QLCNIC_FORCE_FW_RESET) {
val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL);
val = val | QLC_83XX_IDC_GRACEFULL_RESET;
QLCWRX(adapter->ahw, QLC_83XX_IDC_CTRL, val);
} else if (key == QLCNIC_FORCE_FW_DUMP_KEY) {
adapter->ahw->idc.collect_dump = 1;
}
qlcnic_83xx_unlock_driver(adapter);
return;
}
static int qlcnic_83xx_copy_bootloader(struct qlcnic_adapter *adapter)
{
u8 *p_cache;
u32 src, size;
u64 dest;
int ret = -EIO;
src = QLC_83XX_BOOTLOADER_FLASH_ADDR;
dest = QLCRDX(adapter->ahw, QLCNIC_BOOTLOADER_ADDR);
size = QLCRDX(adapter->ahw, QLCNIC_BOOTLOADER_SIZE);
/* alignment check */
if (size & 0xF)
size = (size + 16) & ~0xF;
p_cache = kzalloc(size, GFP_KERNEL);
if (p_cache == NULL)
return -ENOMEM;
ret = qlcnic_83xx_lockless_flash_read32(adapter, src, p_cache,
size / sizeof(u32));
if (ret) {
kfree(p_cache);
return ret;
}
/* 16 byte write to MS memory */
ret = qlcnic_83xx_ms_mem_write128(adapter, dest, (u32 *)p_cache,
size / 16);
if (ret) {
kfree(p_cache);
return ret;
}
kfree(p_cache);
return ret;
}
static int qlcnic_83xx_copy_fw_file(struct qlcnic_adapter *adapter)
{
u32 dest, *p_cache;
u64 addr;
u8 data[16];
size_t size;
int i, ret = -EIO;
dest = QLCRDX(adapter->ahw, QLCNIC_FW_IMAGE_ADDR);
size = (adapter->ahw->fw_info.fw->size & ~0xF);
p_cache = (u32 *)adapter->ahw->fw_info.fw->data;
addr = (u64)dest;
ret = qlcnic_83xx_ms_mem_write128(adapter, addr,
(u32 *)p_cache, size / 16);
if (ret) {
dev_err(&adapter->pdev->dev, "MS memory write failed\n");
release_firmware(adapter->ahw->fw_info.fw);
adapter->ahw->fw_info.fw = NULL;
return -EIO;
}
/* alignment check */
if (adapter->ahw->fw_info.fw->size & 0xF) {
addr = dest + size;
for (i = 0; i < (adapter->ahw->fw_info.fw->size & 0xF); i++)
data[i] = adapter->ahw->fw_info.fw->data[size + i];
for (; i < 16; i++)
data[i] = 0;
ret = qlcnic_83xx_ms_mem_write128(adapter, addr,
(u32 *)data, 1);
if (ret) {
dev_err(&adapter->pdev->dev,
"MS memory write failed\n");
release_firmware(adapter->ahw->fw_info.fw);
adapter->ahw->fw_info.fw = NULL;
return -EIO;
}
}
release_firmware(adapter->ahw->fw_info.fw);
adapter->ahw->fw_info.fw = NULL;
return 0;
}
static void qlcnic_83xx_dump_pause_control_regs(struct qlcnic_adapter *adapter)
{
int i, j;
u32 val = 0, val1 = 0, reg = 0;
val = QLCRD32(adapter, QLC_83XX_SRE_SHIM_REG);
dev_info(&adapter->pdev->dev, "SRE-Shim Ctrl:0x%x\n", val);
for (j = 0; j < 2; j++) {
if (j == 0) {
dev_info(&adapter->pdev->dev,
"Port 0 RxB Pause Threshold Regs[TC7..TC0]:");
reg = QLC_83XX_PORT0_THRESHOLD;
} else if (j == 1) {
dev_info(&adapter->pdev->dev,
"Port 1 RxB Pause Threshold Regs[TC7..TC0]:");
reg = QLC_83XX_PORT1_THRESHOLD;
}
for (i = 0; i < 8; i++) {
val = QLCRD32(adapter, reg + (i * 0x4));
dev_info(&adapter->pdev->dev, "0x%x ", val);
}
dev_info(&adapter->pdev->dev, "\n");
}
for (j = 0; j < 2; j++) {
if (j == 0) {
dev_info(&adapter->pdev->dev,
"Port 0 RxB TC Max Cell Registers[4..1]:");
reg = QLC_83XX_PORT0_TC_MC_REG;
} else if (j == 1) {
dev_info(&adapter->pdev->dev,
"Port 1 RxB TC Max Cell Registers[4..1]:");
reg = QLC_83XX_PORT1_TC_MC_REG;
}
for (i = 0; i < 4; i++) {
val = QLCRD32(adapter, reg + (i * 0x4));
dev_info(&adapter->pdev->dev, "0x%x ", val);
}
dev_info(&adapter->pdev->dev, "\n");
}
for (j = 0; j < 2; j++) {
if (j == 0) {
dev_info(&adapter->pdev->dev,
"Port 0 RxB Rx TC Stats[TC7..TC0]:");
reg = QLC_83XX_PORT0_TC_STATS;
} else if (j == 1) {
dev_info(&adapter->pdev->dev,
"Port 1 RxB Rx TC Stats[TC7..TC0]:");
reg = QLC_83XX_PORT1_TC_STATS;
}
for (i = 7; i >= 0; i--) {
val = QLCRD32(adapter, reg);
val &= ~(0x7 << 29); /* Reset bits 29 to 31 */
QLCWR32(adapter, reg, (val | (i << 29)));
val = QLCRD32(adapter, reg);
dev_info(&adapter->pdev->dev, "0x%x ", val);
}
dev_info(&adapter->pdev->dev, "\n");
}
val = QLCRD32(adapter, QLC_83XX_PORT2_IFB_THRESHOLD);
val1 = QLCRD32(adapter, QLC_83XX_PORT3_IFB_THRESHOLD);
dev_info(&adapter->pdev->dev,
"IFB-Pause Thresholds: Port 2:0x%x, Port 3:0x%x\n",
val, val1);
}
static void qlcnic_83xx_disable_pause_frames(struct qlcnic_adapter *adapter)
{
u32 reg = 0, i, j;
if (qlcnic_83xx_lock_driver(adapter)) {
dev_err(&adapter->pdev->dev,
"%s:failed to acquire driver lock\n", __func__);
return;
}
qlcnic_83xx_dump_pause_control_regs(adapter);
QLCWR32(adapter, QLC_83XX_SRE_SHIM_REG, 0x0);
for (j = 0; j < 2; j++) {
if (j == 0)
reg = QLC_83XX_PORT0_THRESHOLD;
else if (j == 1)
reg = QLC_83XX_PORT1_THRESHOLD;
for (i = 0; i < 8; i++)
QLCWR32(adapter, reg + (i * 0x4), 0x0);
}
for (j = 0; j < 2; j++) {
if (j == 0)
reg = QLC_83XX_PORT0_TC_MC_REG;
else if (j == 1)
reg = QLC_83XX_PORT1_TC_MC_REG;
for (i = 0; i < 4; i++)
QLCWR32(adapter, reg + (i * 0x4), 0x03FF03FF);
}
QLCWR32(adapter, QLC_83XX_PORT2_IFB_THRESHOLD, 0);
QLCWR32(adapter, QLC_83XX_PORT3_IFB_THRESHOLD, 0);
dev_info(&adapter->pdev->dev,
"Disabled pause frames successfully on all ports\n");
qlcnic_83xx_unlock_driver(adapter);
}
static void qlcnic_83xx_take_eport_out_of_reset(struct qlcnic_adapter *adapter)
{
QLCWR32(adapter, QLC_83XX_RESET_REG, 0);
QLCWR32(adapter, QLC_83XX_RESET_PORT0, 0);
QLCWR32(adapter, QLC_83XX_RESET_PORT1, 0);
QLCWR32(adapter, QLC_83XX_RESET_PORT2, 0);
QLCWR32(adapter, QLC_83XX_RESET_PORT3, 0);
QLCWR32(adapter, QLC_83XX_RESET_SRESHIM, 0);
QLCWR32(adapter, QLC_83XX_RESET_EPGSHIM, 0);
QLCWR32(adapter, QLC_83XX_RESET_ETHERPCS, 0);
QLCWR32(adapter, QLC_83XX_RESET_CONTROL, 1);
}
static int qlcnic_83xx_check_heartbeat(struct qlcnic_adapter *p_dev)
{
u32 heartbeat, peg_status;
int retries, ret = -EIO;
retries = QLCNIC_HEARTBEAT_CHECK_RETRY_COUNT;
p_dev->heartbeat = QLC_SHARED_REG_RD32(p_dev,
QLCNIC_PEG_ALIVE_COUNTER);
do {
msleep(QLCNIC_HEARTBEAT_PERIOD_MSECS);
heartbeat = QLC_SHARED_REG_RD32(p_dev,
QLCNIC_PEG_ALIVE_COUNTER);
if (heartbeat != p_dev->heartbeat) {
ret = QLCNIC_RCODE_SUCCESS;
break;
}
} while (--retries);
if (ret) {
dev_err(&p_dev->pdev->dev, "firmware hang detected\n");
qlcnic_83xx_take_eport_out_of_reset(p_dev);
qlcnic_83xx_disable_pause_frames(p_dev);
peg_status = QLC_SHARED_REG_RD32(p_dev,
QLCNIC_PEG_HALT_STATUS1);
dev_info(&p_dev->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(p_dev, QLCNIC_PEG_HALT_STATUS2),
QLCRD32(p_dev, QLC_83XX_CRB_PEG_NET_0),
QLCRD32(p_dev, QLC_83XX_CRB_PEG_NET_1),
QLCRD32(p_dev, QLC_83XX_CRB_PEG_NET_2),
QLCRD32(p_dev, QLC_83XX_CRB_PEG_NET_3),
QLCRD32(p_dev, QLC_83XX_CRB_PEG_NET_4));
if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
dev_err(&p_dev->pdev->dev,
"Device is being reset err code 0x00006700.\n");
}
return ret;
}
static int qlcnic_83xx_check_cmd_peg_status(struct qlcnic_adapter *p_dev)
{
int retries = QLCNIC_CMDPEG_CHECK_RETRY_COUNT;
u32 val;
do {
val = QLC_SHARED_REG_RD32(p_dev, QLCNIC_CMDPEG_STATE);
if (val == QLC_83XX_CMDPEG_COMPLETE)
return 0;
msleep(QLCNIC_CMDPEG_CHECK_DELAY);
} while (--retries);
dev_err(&p_dev->pdev->dev, "%s: failed, state = 0x%x\n", __func__, val);
return -EIO;
}
int qlcnic_83xx_check_hw_status(struct qlcnic_adapter *p_dev)
{
int err;
err = qlcnic_83xx_check_cmd_peg_status(p_dev);
if (err)
return err;
err = qlcnic_83xx_check_heartbeat(p_dev);
if (err)
return err;
return err;
}
static int qlcnic_83xx_poll_reg(struct qlcnic_adapter *p_dev, u32 addr,
int duration, u32 mask, u32 status)
{
u32 value;
int timeout_error;
u8 retries;
value = qlcnic_83xx_rd_reg_indirect(p_dev, addr);
retries = duration / 10;
do {
if ((value & mask) != status) {
timeout_error = 1;
msleep(duration / 10);
value = qlcnic_83xx_rd_reg_indirect(p_dev, addr);
} else {
timeout_error = 0;
break;
}
} while (retries--);
if (timeout_error) {
p_dev->ahw->reset.seq_error++;
dev_err(&p_dev->pdev->dev,
"%s: Timeout Err, entry_num = %d\n",
__func__, p_dev->ahw->reset.seq_index);
dev_err(&p_dev->pdev->dev,
"0x%08x 0x%08x 0x%08x\n",
value, mask, status);
}
return timeout_error;
}
static int qlcnic_83xx_reset_template_checksum(struct qlcnic_adapter *p_dev)
{
u32 sum = 0;
u16 *buff = (u16 *)p_dev->ahw->reset.buff;
int count = p_dev->ahw->reset.hdr->size / sizeof(u16);
while (count-- > 0)
sum += *buff++;
while (sum >> 16)
sum = (sum & 0xFFFF) + (sum >> 16);
if (~sum) {
return 0;
} else {
dev_err(&p_dev->pdev->dev, "%s: failed\n", __func__);
return -1;
}
}
int qlcnic_83xx_get_reset_instruction_template(struct qlcnic_adapter *p_dev)
{
struct qlcnic_hardware_context *ahw = p_dev->ahw;
u32 addr, count, prev_ver, curr_ver;
u8 *p_buff;
if (ahw->reset.buff != NULL) {
prev_ver = p_dev->fw_version;
curr_ver = qlcnic_83xx_get_fw_version(p_dev);
if (curr_ver > prev_ver)
kfree(ahw->reset.buff);
else
return 0;
}
ahw->reset.seq_error = 0;
ahw->reset.buff = kzalloc(QLC_83XX_RESTART_TEMPLATE_SIZE, GFP_KERNEL);
if (p_dev->ahw->reset.buff == NULL)
return -ENOMEM;
p_buff = p_dev->ahw->reset.buff;
addr = QLC_83XX_RESET_TEMPLATE_ADDR;
count = sizeof(struct qlc_83xx_reset_hdr) / sizeof(u32);
/* Copy template header from flash */
if (qlcnic_83xx_flash_read32(p_dev, addr, p_buff, count)) {
dev_err(&p_dev->pdev->dev, "%s: flash read failed\n", __func__);
return -EIO;
}
ahw->reset.hdr = (struct qlc_83xx_reset_hdr *)ahw->reset.buff;
addr = QLC_83XX_RESET_TEMPLATE_ADDR + ahw->reset.hdr->hdr_size;
p_buff = ahw->reset.buff + ahw->reset.hdr->hdr_size;
count = (ahw->reset.hdr->size - ahw->reset.hdr->hdr_size) / sizeof(u32);
/* Copy rest of the template */
if (qlcnic_83xx_flash_read32(p_dev, addr, p_buff, count)) {
dev_err(&p_dev->pdev->dev, "%s: flash read failed\n", __func__);
return -EIO;
}
if (qlcnic_83xx_reset_template_checksum(p_dev))
return -EIO;
/* Get Stop, Start and Init command offsets */
ahw->reset.init_offset = ahw->reset.buff + ahw->reset.hdr->init_offset;
ahw->reset.start_offset = ahw->reset.buff +
ahw->reset.hdr->start_offset;
ahw->reset.stop_offset = ahw->reset.buff + ahw->reset.hdr->hdr_size;
return 0;
}
/* Read Write HW register command */
static void qlcnic_83xx_read_write_crb_reg(struct qlcnic_adapter *p_dev,
u32 raddr, u32 waddr)
{
int value;
value = qlcnic_83xx_rd_reg_indirect(p_dev, raddr);
qlcnic_83xx_wrt_reg_indirect(p_dev, waddr, value);
}
/* Read Modify Write HW register command */
static void qlcnic_83xx_rmw_crb_reg(struct qlcnic_adapter *p_dev,
u32 raddr, u32 waddr,
struct qlc_83xx_rmw *p_rmw_hdr)
{
int value;
if (p_rmw_hdr->index_a)
value = p_dev->ahw->reset.array[p_rmw_hdr->index_a];
else
value = qlcnic_83xx_rd_reg_indirect(p_dev, raddr);
value &= p_rmw_hdr->mask;
value <<= p_rmw_hdr->shl;
value >>= p_rmw_hdr->shr;
value |= p_rmw_hdr->or_value;
value ^= p_rmw_hdr->xor_value;
qlcnic_83xx_wrt_reg_indirect(p_dev, waddr, value);
}
/* Write HW register command */
static void qlcnic_83xx_write_list(struct qlcnic_adapter *p_dev,
struct qlc_83xx_entry_hdr *p_hdr)
{
int i;
struct qlc_83xx_entry *entry;
entry = (struct qlc_83xx_entry *)((char *)p_hdr +
sizeof(struct qlc_83xx_entry_hdr));
for (i = 0; i < p_hdr->count; i++, entry++) {
qlcnic_83xx_wrt_reg_indirect(p_dev, entry->arg1,
entry->arg2);
if (p_hdr->delay)
udelay((u32)(p_hdr->delay));
}
}
/* Read and Write instruction */
static void qlcnic_83xx_read_write_list(struct qlcnic_adapter *p_dev,
struct qlc_83xx_entry_hdr *p_hdr)
{
int i;
struct qlc_83xx_entry *entry;
entry = (struct qlc_83xx_entry *)((char *)p_hdr +
sizeof(struct qlc_83xx_entry_hdr));
for (i = 0; i < p_hdr->count; i++, entry++) {
qlcnic_83xx_read_write_crb_reg(p_dev, entry->arg1,
entry->arg2);
if (p_hdr->delay)
udelay((u32)(p_hdr->delay));
}
}
/* Poll HW register command */
static void qlcnic_83xx_poll_list(struct qlcnic_adapter *p_dev,
struct qlc_83xx_entry_hdr *p_hdr)
{
long delay;
struct qlc_83xx_entry *entry;
struct qlc_83xx_poll *poll;
int i;
unsigned long arg1, arg2;
poll = (struct qlc_83xx_poll *)((char *)p_hdr +
sizeof(struct qlc_83xx_entry_hdr));
entry = (struct qlc_83xx_entry *)((char *)poll +
sizeof(struct qlc_83xx_poll));
delay = (long)p_hdr->delay;
if (!delay) {
for (i = 0; i < p_hdr->count; i++, entry++)
qlcnic_83xx_poll_reg(p_dev, entry->arg1,
delay, poll->mask,
poll->status);
} else {
for (i = 0; i < p_hdr->count; i++, entry++) {
arg1 = entry->arg1;
arg2 = entry->arg2;
if (delay) {
if (qlcnic_83xx_poll_reg(p_dev,
arg1, delay,
poll->mask,
poll->status)){
qlcnic_83xx_rd_reg_indirect(p_dev,
arg1);
qlcnic_83xx_rd_reg_indirect(p_dev,
arg2);
}
}
}
}
}
/* Poll and write HW register command */
static void qlcnic_83xx_poll_write_list(struct qlcnic_adapter *p_dev,
struct qlc_83xx_entry_hdr *p_hdr)
{
int i;
long delay;
struct qlc_83xx_quad_entry *entry;
struct qlc_83xx_poll *poll;
poll = (struct qlc_83xx_poll *)((char *)p_hdr +
sizeof(struct qlc_83xx_entry_hdr));
entry = (struct qlc_83xx_quad_entry *)((char *)poll +
sizeof(struct qlc_83xx_poll));
delay = (long)p_hdr->delay;
for (i = 0; i < p_hdr->count; i++, entry++) {
qlcnic_83xx_wrt_reg_indirect(p_dev, entry->dr_addr,
entry->dr_value);
qlcnic_83xx_wrt_reg_indirect(p_dev, entry->ar_addr,
entry->ar_value);
if (delay)
qlcnic_83xx_poll_reg(p_dev, entry->ar_addr, delay,
poll->mask, poll->status);
}
}
/* Read Modify Write register command */
static void qlcnic_83xx_read_modify_write(struct qlcnic_adapter *p_dev,
struct qlc_83xx_entry_hdr *p_hdr)
{
int i;
struct qlc_83xx_entry *entry;
struct qlc_83xx_rmw *rmw_hdr;
rmw_hdr = (struct qlc_83xx_rmw *)((char *)p_hdr +
sizeof(struct qlc_83xx_entry_hdr));
entry = (struct qlc_83xx_entry *)((char *)rmw_hdr +
sizeof(struct qlc_83xx_rmw));
for (i = 0; i < p_hdr->count; i++, entry++) {
qlcnic_83xx_rmw_crb_reg(p_dev, entry->arg1,
entry->arg2, rmw_hdr);
if (p_hdr->delay)
udelay((u32)(p_hdr->delay));
}
}
static void qlcnic_83xx_pause(struct qlc_83xx_entry_hdr *p_hdr)
{
if (p_hdr->delay)
mdelay((u32)((long)p_hdr->delay));
}
/* Read and poll register command */
static void qlcnic_83xx_poll_read_list(struct qlcnic_adapter *p_dev,
struct qlc_83xx_entry_hdr *p_hdr)
{
long delay;
int index, i, j;
struct qlc_83xx_quad_entry *entry;
struct qlc_83xx_poll *poll;
unsigned long addr;
poll = (struct qlc_83xx_poll *)((char *)p_hdr +
sizeof(struct qlc_83xx_entry_hdr));
entry = (struct qlc_83xx_quad_entry *)((char *)poll +
sizeof(struct qlc_83xx_poll));
delay = (long)p_hdr->delay;
for (i = 0; i < p_hdr->count; i++, entry++) {
qlcnic_83xx_wrt_reg_indirect(p_dev, entry->ar_addr,
entry->ar_value);
if (delay) {
if (!qlcnic_83xx_poll_reg(p_dev, entry->ar_addr, delay,
poll->mask, poll->status)){
index = p_dev->ahw->reset.array_index;
addr = entry->dr_addr;
j = qlcnic_83xx_rd_reg_indirect(p_dev, addr);
p_dev->ahw->reset.array[index++] = j;
if (index == QLC_83XX_MAX_RESET_SEQ_ENTRIES)
p_dev->ahw->reset.array_index = 1;
}
}
}
}
static inline void qlcnic_83xx_seq_end(struct qlcnic_adapter *p_dev)
{
p_dev->ahw->reset.seq_end = 1;
}
static void qlcnic_83xx_template_end(struct qlcnic_adapter *p_dev)
{
p_dev->ahw->reset.template_end = 1;
if (p_dev->ahw->reset.seq_error == 0)
dev_err(&p_dev->pdev->dev,
"HW restart process completed successfully.\n");
else
dev_err(&p_dev->pdev->dev,
"HW restart completed with timeout errors.\n");
}
/**
* qlcnic_83xx_exec_template_cmd
*
* @p_dev: adapter structure
* @p_buff: Poiter to instruction template
*
* Template provides instructions to stop, restart and initalize firmware.
* These instructions are abstracted as a series of read, write and
* poll operations on hardware registers. Register information and operation
* specifics are not exposed to the driver. Driver reads the template from
* flash and executes the instructions located at pre-defined offsets.
*
* Returns: None
* */
static void qlcnic_83xx_exec_template_cmd(struct qlcnic_adapter *p_dev,
char *p_buff)
{
int index, entries;
struct qlc_83xx_entry_hdr *p_hdr;
char *entry = p_buff;
p_dev->ahw->reset.seq_end = 0;
p_dev->ahw->reset.template_end = 0;
entries = p_dev->ahw->reset.hdr->entries;
index = p_dev->ahw->reset.seq_index;
for (; (!p_dev->ahw->reset.seq_end) && (index < entries); index++) {
p_hdr = (struct qlc_83xx_entry_hdr *)entry;
switch (p_hdr->cmd) {
case QLC_83XX_OPCODE_NOP:
break;
case QLC_83XX_OPCODE_WRITE_LIST:
qlcnic_83xx_write_list(p_dev, p_hdr);
break;
case QLC_83XX_OPCODE_READ_WRITE_LIST:
qlcnic_83xx_read_write_list(p_dev, p_hdr);
break;
case QLC_83XX_OPCODE_POLL_LIST:
qlcnic_83xx_poll_list(p_dev, p_hdr);
break;
case QLC_83XX_OPCODE_POLL_WRITE_LIST:
qlcnic_83xx_poll_write_list(p_dev, p_hdr);
break;
case QLC_83XX_OPCODE_READ_MODIFY_WRITE:
qlcnic_83xx_read_modify_write(p_dev, p_hdr);
break;
case QLC_83XX_OPCODE_SEQ_PAUSE:
qlcnic_83xx_pause(p_hdr);
break;
case QLC_83XX_OPCODE_SEQ_END:
qlcnic_83xx_seq_end(p_dev);
break;
case QLC_83XX_OPCODE_TMPL_END:
qlcnic_83xx_template_end(p_dev);
break;
case QLC_83XX_OPCODE_POLL_READ_LIST:
qlcnic_83xx_poll_read_list(p_dev, p_hdr);
break;
default:
dev_err(&p_dev->pdev->dev,
"%s: Unknown opcode 0x%04x in template %d\n",
__func__, p_hdr->cmd, index);
break;
}
entry += p_hdr->size;
}
p_dev->ahw->reset.seq_index = index;
}
static void qlcnic_83xx_stop_hw(struct qlcnic_adapter *p_dev)
{
p_dev->ahw->reset.seq_index = 0;
qlcnic_83xx_exec_template_cmd(p_dev, p_dev->ahw->reset.stop_offset);
if (p_dev->ahw->reset.seq_end != 1)
dev_err(&p_dev->pdev->dev, "%s: failed\n", __func__);
}
static void qlcnic_83xx_start_hw(struct qlcnic_adapter *p_dev)
{
qlcnic_83xx_exec_template_cmd(p_dev, p_dev->ahw->reset.start_offset);
if (p_dev->ahw->reset.template_end != 1)
dev_err(&p_dev->pdev->dev, "%s: failed\n", __func__);
}
static void qlcnic_83xx_init_hw(struct qlcnic_adapter *p_dev)
{
qlcnic_83xx_exec_template_cmd(p_dev, p_dev->ahw->reset.init_offset);
if (p_dev->ahw->reset.seq_end != 1)
dev_err(&p_dev->pdev->dev, "%s: failed\n", __func__);
}
static int qlcnic_83xx_load_fw_image_from_host(struct qlcnic_adapter *adapter)
{
int err = -EIO;
if (request_firmware(&adapter->ahw->fw_info.fw,
QLC_83XX_FW_FILE_NAME, &(adapter->pdev->dev))) {
dev_err(&adapter->pdev->dev,
"No file FW image, loading flash FW image.\n");
QLC_SHARED_REG_WR32(adapter, QLCNIC_FW_IMG_VALID,
QLC_83XX_BOOT_FROM_FLASH);
} else {
if (qlcnic_83xx_copy_fw_file(adapter))
return err;
QLC_SHARED_REG_WR32(adapter, QLCNIC_FW_IMG_VALID,
QLC_83XX_BOOT_FROM_FILE);
}
return 0;
}
static int qlcnic_83xx_restart_hw(struct qlcnic_adapter *adapter)
{
u32 val;
int err = -EIO;
qlcnic_83xx_stop_hw(adapter);
/* Collect FW register dump if required */
val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL);
if (!(val & QLC_83XX_IDC_GRACEFULL_RESET))
qlcnic_dump_fw(adapter);
qlcnic_83xx_init_hw(adapter);
if (qlcnic_83xx_copy_bootloader(adapter))
return err;
/* Boot either flash image or firmware image from host file system */
if (qlcnic_load_fw_file) {
if (qlcnic_83xx_load_fw_image_from_host(adapter))
return err;
} else {
QLC_SHARED_REG_WR32(adapter, QLCNIC_FW_IMG_VALID,
QLC_83XX_BOOT_FROM_FLASH);
}
qlcnic_83xx_start_hw(adapter);
if (qlcnic_83xx_check_hw_status(adapter))
return -EIO;
return 0;
}
/**
* qlcnic_83xx_config_default_opmode
*
* @adapter: adapter structure
*
* Configure default driver operating mode
*
* Returns: Error code or Success(0)
* */
int qlcnic_83xx_config_default_opmode(struct qlcnic_adapter *adapter)
{
u32 op_mode;
struct qlcnic_hardware_context *ahw = adapter->ahw;
qlcnic_get_func_no(adapter);
op_mode = QLCRDX(ahw, QLC_83XX_DRV_OP_MODE);
if (test_bit(__QLCNIC_SRIOV_CAPABLE, &adapter->state))
op_mode = QLC_83XX_DEFAULT_OPMODE;
if (op_mode == QLC_83XX_DEFAULT_OPMODE) {
adapter->nic_ops->init_driver = qlcnic_83xx_init_default_driver;
ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry;
} else {
return -EIO;
}
return 0;
}
int qlcnic_83xx_get_nic_configuration(struct qlcnic_adapter *adapter)
{
int err;
struct qlcnic_info nic_info;
struct qlcnic_hardware_context *ahw = adapter->ahw;
memset(&nic_info, 0, sizeof(struct qlcnic_info));
err = qlcnic_get_nic_info(adapter, &nic_info, ahw->pci_func);
if (err)
return -EIO;
ahw->physical_port = (u8) nic_info.phys_port;
ahw->switch_mode = nic_info.switch_mode;
ahw->max_tx_ques = nic_info.max_tx_ques;
ahw->max_rx_ques = nic_info.max_rx_ques;
ahw->capabilities = nic_info.capabilities;
ahw->max_mac_filters = nic_info.max_mac_filters;
ahw->max_mtu = nic_info.max_mtu;
/* VNIC mode is detected by BIT_23 in capabilities. This bit is also
* set in case device is SRIOV capable. VNIC and SRIOV are mutually
* exclusive. So in case of sriov capable device load driver in
* default mode
*/
if (test_bit(__QLCNIC_SRIOV_CAPABLE, &adapter->state)) {
ahw->nic_mode = QLC_83XX_DEFAULT_MODE;
return ahw->nic_mode;
}
if (ahw->capabilities & BIT_23)
ahw->nic_mode = QLC_83XX_VIRTUAL_NIC_MODE;
else
ahw->nic_mode = QLC_83XX_DEFAULT_MODE;
return ahw->nic_mode;
}
int qlcnic_83xx_configure_opmode(struct qlcnic_adapter *adapter)
{
int ret;
ret = qlcnic_83xx_get_nic_configuration(adapter);
if (ret == -EIO)
return -EIO;
if (ret == QLC_83XX_VIRTUAL_NIC_MODE) {
if (qlcnic_83xx_config_vnic_opmode(adapter))
return -EIO;
} else if (ret == QLC_83XX_DEFAULT_MODE) {
if (qlcnic_83xx_config_default_opmode(adapter))
return -EIO;
}
return 0;
}
static void qlcnic_83xx_config_buff_descriptors(struct qlcnic_adapter *adapter)
{
struct qlcnic_hardware_context *ahw = adapter->ahw;
if (ahw->port_type == QLCNIC_XGBE) {
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 (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->num_txd = MAX_CMD_DESCRIPTORS;
adapter->max_rds_rings = MAX_RDS_RINGS;
}
static int qlcnic_83xx_init_default_driver(struct qlcnic_adapter *adapter)
{
int err = -EIO;
qlcnic_83xx_get_minidump_template(adapter);
if (qlcnic_83xx_get_port_info(adapter))
return err;
qlcnic_83xx_config_buff_descriptors(adapter);
adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
dev_info(&adapter->pdev->dev, "HAL Version: %d\n",
adapter->ahw->fw_hal_version);
return 0;
}
#define IS_QLC_83XX_USED(a, b, c) (((1 << a->portnum) & b) || ((c >> 6) & 0x1))
static void qlcnic_83xx_clear_function_resources(struct qlcnic_adapter *adapter)
{
struct qlcnic_cmd_args cmd;
u32 presence_mask, audit_mask;
int status;
presence_mask = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE);
audit_mask = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_AUDIT);
if (IS_QLC_83XX_USED(adapter, presence_mask, audit_mask)) {
status = qlcnic_alloc_mbx_args(&cmd, adapter,
QLCNIC_CMD_STOP_NIC_FUNC);
if (status)
return;
cmd.req.arg[1] = BIT_31;
status = qlcnic_issue_cmd(adapter, &cmd);
if (status)
dev_err(&adapter->pdev->dev,
"Failed to clean up the function resources\n");
qlcnic_free_mbx_args(&cmd);
}
}
int qlcnic_83xx_init(struct qlcnic_adapter *adapter, int pci_using_dac)
{
struct qlcnic_hardware_context *ahw = adapter->ahw;
if (qlcnic_sriov_vf_check(adapter))
return qlcnic_sriov_vf_init(adapter, pci_using_dac);
if (qlcnic_83xx_check_hw_status(adapter))
return -EIO;
/* Initilaize 83xx mailbox spinlock */
spin_lock_init(&ahw->mbx_lock);
set_bit(QLC_83XX_MBX_READY, &adapter->ahw->idc.status);
qlcnic_83xx_clear_function_resources(adapter);
/* register for NIC IDC AEN Events */
qlcnic_83xx_register_nic_idc_func(adapter, 1);
if (!qlcnic_83xx_read_flash_descriptor_table(adapter))
qlcnic_83xx_read_flash_mfg_id(adapter);
if (qlcnic_83xx_idc_init(adapter))
return -EIO;
/* Configure default, SR-IOV or Virtual NIC mode of operation */
if (qlcnic_83xx_configure_opmode(adapter))
return -EIO;
/* Perform operating mode specific initialization */
if (adapter->nic_ops->init_driver(adapter))
return -EIO;
INIT_DELAYED_WORK(&adapter->idc_aen_work, qlcnic_83xx_idc_aen_work);
/* Periodically monitor device status */
qlcnic_83xx_idc_poll_dev_state(&adapter->fw_work.work);
return adapter->ahw->idc.err_code;
}