qlcnic: Fix driver load issue in FW hang
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>
diff --git a/drivers/net/qlcnic/qlcnic_main.c b/drivers/net/qlcnic/qlcnic_main.c
index 1b8f67da..6999d5a 100644
--- a/drivers/net/qlcnic/qlcnic_main.c
+++ b/drivers/net/qlcnic/qlcnic_main.c
@@ -566,12 +566,11 @@
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 @@
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 @@
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 @@
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 @@
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);
@@ -837,6 +799,51 @@
}
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)
{
struct qlcnic_esw_func_cfg esw_cfg;
@@ -1005,8 +1012,14 @@
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 @@
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 @@
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 @@
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;