leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

qlcnic: Fix driver load issue in FW hang

Browse Source 
If there is a FW hang when the driver loads, it can not determine the FW operational
mode. Fix it by checking the FW state first before issuing any FW commands to
determine its capabilities and thereby detecting driver operational mode.

Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Anirban Chakraborty 2010-08-26 14:02:52 +00:00 committed by David S. Miller
parent 8cfdce0807
commit 0866d96da0
4 changed files with 75 additions and 60 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/qlcnic/qlcnic.h
View File

@ -902,6 +902,7 @@ struct qlcnic_mac_req {
#define QLCNIC_BRIDGE_ENABLED 0X10
#define QLCNIC_DIAG_ENABLED 0x20
#define QLCNIC_ESWITCH_ENABLED 0x40
#define QLCNIC_ADAPTER_INITIALIZED 0x80
#define QLCNIC_TAGGING_ENABLED 0x100
#define QLCNIC_MACSPOOF 0x200
#define QLCNIC_IS_MSI_FAMILY(adapter) \

2
drivers/net/qlcnic/qlcnic_hdr.h
View File

@ -748,7 +748,7 @@ enum {
#define QLCNIC_RESET_TIMEOUT_SECS 10
#define QLCNIC_INIT_TIMEOUT_SECS 30
#define QLCNIC_HEARTBEAT_PERIOD_MSECS 200
#define QLCNIC_HEARTBEAT_RETRY_COUNT 30
#define QLCNIC_HEARTBEAT_RETRY_COUNT 45
#define ISR_MSI_INT_TRIGGER(FUNC) (QLCNIC_PCIX_PS_REG(PCIX_MSI_F(FUNC)))
#define ISR_LEGACY_INT_TRIGGERED(VAL) (((VAL) & 0x300) == 0x200)

16
drivers/net/qlcnic/qlcnic_init.c
View File

@ -547,7 +547,7 @@ int qlcnic_pinit_from_rom(struct qlcnic_adapter *adapter)
int
qlcnic_check_fw_status(struct qlcnic_adapter *adapter)
{
u32 heartbit, ret = -EIO;
u32 heartbit, cmdpeg_state, ret = -EIO;
int retries = QLCNIC_HEARTBEAT_RETRY_COUNT;
adapter->heartbit = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
@ -555,10 +555,16 @@ qlcnic_check_fw_status(struct qlcnic_adapter *adapter)
msleep(QLCNIC_HEARTBEAT_PERIOD_MSECS);
heartbit = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
if (heartbit != adapter->heartbit) {
/* Complete firmware handshake */
QLCWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK);
ret = QLCNIC_RCODE_SUCCESS;
break;
cmdpeg_state = QLCRD32(adapter, CRB_CMDPEG_STATE);
/* Ensure peg states are initialized */
if (cmdpeg_state == PHAN_INITIALIZE_COMPLETE ||
cmdpeg_state == PHAN_INITIALIZE_ACK) {
/* Complete firmware handshake */
QLCWR32(adapter, CRB_CMDPEG_STATE,
PHAN_INITIALIZE_ACK);
ret = QLCNIC_RCODE_SUCCESS;
break;
}
}
} while (--retries);

116
drivers/net/qlcnic/qlcnic_main.c
View File

@ -566,12 +566,11 @@ err_lock:
return ret;
}
static u32
qlcnic_get_driver_mode(struct qlcnic_adapter *adapter)
static void
qlcnic_check_vf(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;
@ -586,20 +585,6 @@ qlcnic_get_driver_mode(struct qlcnic_adapter *adapter)
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);
@ -608,37 +593,14 @@ qlcnic_get_driver_mode(struct qlcnic_adapter *adapter)
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:
if (priv_level == 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;
} else
adapter->nic_ops = &qlcnic_ops;
}
static int
@ -671,10 +633,7 @@ qlcnic_setup_pci_map(struct qlcnic_adapter *adapter)
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;
}
qlcnic_check_vf(adapter);
adapter->ahw.ocm_win_crb = qlcnic_get_ioaddr(adapter,
QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(adapter->ahw.pci_func)));
@ -719,6 +678,9 @@ qlcnic_check_options(struct qlcnic_adapter *adapter)
adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
if (!(adapter->flags & QLCNIC_ADAPTER_INITIALIZED))
if (qlcnic_read_mac_addr(adapter))
dev_warn(&pdev->dev, "failed to read mac addr\n");
if (adapter->portnum == 0) {
get_brd_name(adapter, brd_name);
@ -836,6 +798,51 @@ qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
netdev->vlan_features = (features & vlan_features);
}
static int
qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
{
void __iomem *priv_op;
u32 op_mode, priv_level;
int err = 0;
if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
return 0;
priv_op = adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE;
op_mode = readl(priv_op);
priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw.pci_func);
if (op_mode == QLC_DEV_DRV_DEFAULT)
priv_level = QLCNIC_MGMT_FUNC;
else
priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw.pci_func);
if (adapter->capabilities & BIT_6) {
adapter->flags |= QLCNIC_ESWITCH_ENABLED;
if (priv_level == QLCNIC_MGMT_FUNC) {
adapter->op_mode = QLCNIC_MGMT_FUNC;
err = qlcnic_init_pci_info(adapter);
if (err)
return err;
/* Set privilege level for other functions */
qlcnic_set_function_modes(adapter);
dev_info(&adapter->pdev->dev,
"HAL Version: %d, Management function\n",
adapter->fw_hal_version);
} else if (priv_level == QLCNIC_PRIV_FUNC) {
adapter->op_mode = QLCNIC_PRIV_FUNC;
dev_info(&adapter->pdev->dev,
"HAL Version: %d, Privileged function\n",
adapter->fw_hal_version);
}
} else
adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
return err;
}
static int
qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
{
@ -1005,8 +1012,14 @@ set_dev_ready:
err = qlcnic_reset_npar_config(adapter);
if (err)
goto err_out;
qlcnic_dev_set_npar_ready(adapter);
qlcnic_check_options(adapter);
err = qlcnic_check_eswitch_mode(adapter);
if (err) {
dev_err(&adapter->pdev->dev,
"Memory allocation failed for eswitch\n");
goto err_out;
}
qlcnic_dev_set_npar_ready(adapter);
adapter->need_fw_reset = 0;
qlcnic_release_firmware(adapter);
@ -1015,6 +1028,7 @@ set_dev_ready:
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;
}
@ -1419,9 +1433,6 @@ qlcnic_setup_netdev(struct qlcnic_adapter *adapter,
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);
@ -1515,9 +1526,6 @@ qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
goto err_out_iounmap;
}
if (qlcnic_read_mac_addr(adapter))
dev_warn(&pdev->dev, "failed to read mac addr\n");
err = qlcnic_setup_idc_param(adapter);
if (err)
goto err_out_iounmap;