qlcnic: Allow firmware dump collection when auto firmware recovery is disabled

o Allow driver to collect firmware dump, during a forced firmware dump
  operation, when auto firmware recovery is disabled. Also, during this
  operation, driver should not allow reset recovery to be performed.

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
index 4cae6caa6bfa42476ff79b881784dd2f42a36db6..a6a33508e40137b124541f07e3433361b086afec 100644 (file)
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
@@ -662,4 +662,5 @@ pci_ers_result_t qlcnic_83xx_io_error_detected(struct pci_dev *,
                                               pci_channel_state_t);
 pci_ers_result_t qlcnic_83xx_io_slot_reset(struct pci_dev *);
 void qlcnic_83xx_io_resume(struct pci_dev *);
+void qlcnic_83xx_stop_hw(struct qlcnic_adapter *);
 #endif

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
index cac0503bda313dccb4eb8ca4d0fbb7c181b763f6..918e18ddf0381acd2f8a3097603ec6bd914fc5a8 100644 (file)
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
@@ -740,6 +740,7 @@ 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__);
+       clear_bit(__QLCNIC_RESETTING, &adapter->state);
        return 0;
 }
 
@@ -818,7 +819,6 @@ static int qlcnic_83xx_idc_ready_state(struct qlcnic_adapter *adapter)
        struct qlcnic_hardware_context *ahw = adapter->ahw;
        struct qlcnic_mailbox *mbx = ahw->mailbox;
        int ret = 0;
-       u32 owner;
        u32 val;
 
        /* Perform NIC configuration based ready state entry actions */
@@ -848,9 +848,9 @@ static int qlcnic_83xx_idc_ready_state(struct qlcnic_adapter *adapter)
                        set_bit(__QLCNIC_RESETTING, &adapter->state);
                        qlcnic_83xx_idc_enter_need_reset_state(adapter, 1);
                }  else {
-                       owner = qlcnic_83xx_idc_find_reset_owner_id(adapter);
-                       if (ahw->pci_func == owner)
-                               qlcnic_dump_fw(adapter);
+                       netdev_info(adapter->netdev, "%s: Auto firmware recovery is disabled\n",
+                                   __func__);
+                       qlcnic_83xx_idc_enter_failed_state(adapter, 1);
                }
                return -EIO;
        }
@@ -948,13 +948,26 @@ static int qlcnic_83xx_idc_need_quiesce_state(struct qlcnic_adapter *adapter)
        return 0;
 }
 
-static int qlcnic_83xx_idc_failed_state(struct qlcnic_adapter *adapter)
+static void qlcnic_83xx_idc_failed_state(struct qlcnic_adapter *adapter)
 {
-       dev_err(&adapter->pdev->dev, "%s: please restart!!\n", __func__);
+       struct qlcnic_hardware_context *ahw = adapter->ahw;
+       u32 val, owner;
+
+       val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL);
+       if (val & QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY) {
+               owner = qlcnic_83xx_idc_find_reset_owner_id(adapter);
+               if (ahw->pci_func == owner) {
+                       qlcnic_83xx_stop_hw(adapter);
+                       qlcnic_dump_fw(adapter);
+               }
+       }
+
+       netdev_warn(adapter->netdev, "%s: Reboot will be required to recover the adapter!!\n",
+                   __func__);
        clear_bit(__QLCNIC_RESETTING, &adapter->state);
-       adapter->ahw->idc.err_code = -EIO;
+       ahw->idc.err_code = -EIO;
 
-       return 0;
+       return;
 }
 
 static int qlcnic_83xx_idc_quiesce_state(struct qlcnic_adapter *adapter)
@@ -1063,12 +1076,6 @@ void qlcnic_83xx_idc_poll_dev_state(struct work_struct *work)
        adapter->ahw->idc.prev_state = adapter->ahw->idc.curr_state;
        qlcnic_83xx_periodic_tasks(adapter);
 
-       /* Do not reschedule if firmaware is in hanged state and auto
-        * recovery is disabled
-        */
-       if ((adapter->flags & QLCNIC_FW_HANG) && !qlcnic_auto_fw_reset)
-               return;
-
        /* 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,
@@ -1219,10 +1226,10 @@ void qlcnic_83xx_idc_request_reset(struct qlcnic_adapter *adapter, u32 key)
        }
 
        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__);
+       if (val & QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY) {
+               netdev_info(adapter->netdev, "%s: Auto firmware recovery is disabled\n",
+                           __func__);
+               qlcnic_83xx_idc_enter_failed_state(adapter, 0);
                qlcnic_83xx_unlock_driver(adapter);
                return;
        }
@@ -1939,7 +1946,7 @@ static void qlcnic_83xx_exec_template_cmd(struct qlcnic_adapter *p_dev,
        p_dev->ahw->reset.seq_index = index;
 }
 
-static void qlcnic_83xx_stop_hw(struct qlcnic_adapter *p_dev)
+void qlcnic_83xx_stop_hw(struct qlcnic_adapter *p_dev)
 {
        p_dev->ahw->reset.seq_index = 0;
 
@@ -1994,6 +2001,14 @@ static int qlcnic_83xx_restart_hw(struct qlcnic_adapter *adapter)
        val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL);
        if (!(val & QLC_83XX_IDC_GRACEFULL_RESET))
                qlcnic_dump_fw(adapter);
+
+       if (val & QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY) {
+               netdev_info(adapter->netdev, "%s: Auto firmware recovery is disabled\n",
+                           __func__);
+               qlcnic_83xx_idc_enter_failed_state(adapter, 1);
+               return err;
+       }
+
        qlcnic_83xx_init_hw(adapter);
 
        if (qlcnic_83xx_copy_bootloader(adapter))