qlcnic: Minimize sleep duration within loopback diagnostic test.

o Minimize sleep duration and check for adapter status.
o Exit from loopback test if adapter reset is detected.

Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
index ab66410..1c463dd 100644 (file)
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
@@ -1676,13 +1676,19 @@ int qlcnic_83xx_loopback_test(struct net_device *netdev, u8 mode)
 
        /* Poll for link up event before running traffic */
        do {
-               msleep(500);
+               msleep(QLC_83XX_LB_MSLEEP_COUNT);
                if (!(adapter->flags & QLCNIC_MSIX_ENABLED))
                        qlcnic_83xx_process_aen(adapter);
 
-               if (loop++ > QLCNIC_ILB_MAX_RCV_LOOP) {
-                       dev_info(&adapter->pdev->dev,
-                                "Firmware didn't sent link up event to loopback request\n");
+               if (test_bit(__QLCNIC_RESETTING, &adapter->state)) {
+                       netdev_info(netdev,
+                                   "Device is resetting, free LB test resources\n");
+                       ret = -EIO;
+                       goto free_diag_res;
+               }
+               if (loop++ > QLC_83XX_LB_WAIT_COUNT) {
+                       netdev_info(netdev,
+                                   "Firmware didn't sent link up event to loopback request\n");
                        ret = -QLCNIC_FW_NOT_RESPOND;
                        qlcnic_83xx_clear_lb_mode(adapter, mode);
                        goto free_diag_res;
@@ -1711,6 +1717,7 @@ fail_diag_alloc:
 int qlcnic_83xx_set_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
 {
        struct qlcnic_hardware_context *ahw = adapter->ahw;
+       struct net_device *netdev = adapter->netdev;
        int status = 0, loop = 0;
        u32 config;
 
@@ -1728,9 +1735,9 @@ int qlcnic_83xx_set_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
 
        status = qlcnic_83xx_set_port_config(adapter);
        if (status) {
-               dev_err(&adapter->pdev->dev,
-                       "Failed to Set Loopback Mode = 0x%x.\n",
-                       ahw->port_config);
+               netdev_err(netdev,
+                          "Failed to Set Loopback Mode = 0x%x.\n",
+                          ahw->port_config);
                ahw->port_config = config;
                clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
                return status;
@@ -1738,13 +1745,19 @@ int qlcnic_83xx_set_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
 
        /* Wait for Link and IDC Completion AEN */
        do {
-               msleep(300);
+               msleep(QLC_83XX_LB_MSLEEP_COUNT);
                if (!(adapter->flags & QLCNIC_MSIX_ENABLED))
                        qlcnic_83xx_process_aen(adapter);
 
-               if (loop++ > QLCNIC_ILB_MAX_RCV_LOOP) {
-                       dev_err(&adapter->pdev->dev,
-                               "FW did not generate IDC completion AEN\n");
+               if (test_bit(__QLCNIC_RESETTING, &adapter->state)) {
+                       netdev_info(netdev,
+                                   "Device is resetting, free LB test resources\n");
+                       clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
+                       return -EIO;
+               }
+               if (loop++ > QLC_83XX_LB_WAIT_COUNT) {
+                       netdev_err(netdev,
+                                  "Did not receive IDC completion AEN\n");
                        clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
                        qlcnic_83xx_clear_lb_mode(adapter, mode);
                        return -EIO;
@@ -1759,6 +1772,7 @@ int qlcnic_83xx_set_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
 int qlcnic_83xx_clear_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
 {
        struct qlcnic_hardware_context *ahw = adapter->ahw;
+       struct net_device *netdev = adapter->netdev;
        int status = 0, loop = 0;
        u32 config = ahw->port_config;
 
@@ -1770,9 +1784,9 @@ int qlcnic_83xx_clear_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
 
        status = qlcnic_83xx_set_port_config(adapter);
        if (status) {
-               dev_err(&adapter->pdev->dev,
-                       "Failed to Clear Loopback Mode = 0x%x.\n",
-                       ahw->port_config);
+               netdev_err(netdev,
+                          "Failed to Clear Loopback Mode = 0x%x.\n",
+                          ahw->port_config);
                ahw->port_config = config;
                clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
                return status;
@@ -1780,13 +1794,20 @@ int qlcnic_83xx_clear_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
 
        /* Wait for Link and IDC Completion AEN */
        do {
-               msleep(300);
+               msleep(QLC_83XX_LB_MSLEEP_COUNT);
                if (!(adapter->flags & QLCNIC_MSIX_ENABLED))
                        qlcnic_83xx_process_aen(adapter);
 
-               if (loop++ > QLCNIC_ILB_MAX_RCV_LOOP) {
-                       dev_err(&adapter->pdev->dev,
-                               "Firmware didn't sent IDC completion AEN\n");
+               if (test_bit(__QLCNIC_RESETTING, &adapter->state)) {
+                       netdev_info(netdev,
+                                   "Device is resetting, free LB test resources\n");
+                       clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
+                       return -EIO;
+               }
+
+               if (loop++ > QLC_83XX_LB_WAIT_COUNT) {
+                       netdev_err(netdev,
+                                  "Did not receive IDC completion AEN\n");
                        clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
                        return -EIO;
                }

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
index e821ee4..e356ee8 100644 (file)
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
@@ -36,7 +36,8 @@
 #define QLC_83XX_MAX_DRV_LOCK_RECOVERY_ATTEMPT         3
 #define QLC_83XX_DRV_LOCK_RECOVERY_DELAY               200
 #define QLC_83XX_DRV_LOCK_RECOVERY_STATUS_MASK         0x3
-
+#define QLC_83XX_LB_WAIT_COUNT                         250
+#define QLC_83XX_LB_MSLEEP_COUNT                       20
 #define QLC_83XX_NO_NIC_RESOURCE       0x5
 #define QLC_83XX_MAC_PRESENT           0xC
 #define QLC_83XX_MAC_ABSENT            0xD