diff options
Diffstat (limited to 'drivers/scsi/megaraid/megaraid_sas_fusion.c')
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas_fusion.c | 66 |
1 files changed, 58 insertions, 8 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c index 9ca4a52164bd..2868b71add2d 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fusion.c +++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c @@ -3884,14 +3884,57 @@ megasas_check_reset_fusion(struct megasas_instance *instance, return 0; } +/** + * megasas_trigger_snap_dump - Trigger snap dump in FW + * @instance: Soft instance of adapter + */ +static inline void megasas_trigger_snap_dump(struct megasas_instance *instance) +{ + int j; + u32 fw_state; + + if (!instance->disableOnlineCtrlReset) { + dev_info(&instance->pdev->dev, "Trigger snap dump\n"); + writel(MFI_ADP_TRIGGER_SNAP_DUMP, + &instance->reg_set->doorbell); + readl(&instance->reg_set->doorbell); + } + + for (j = 0; j < instance->snapdump_wait_time; j++) { + fw_state = instance->instancet->read_fw_status_reg( + instance->reg_set) & MFI_STATE_MASK; + if (fw_state == MFI_STATE_FAULT) { + dev_err(&instance->pdev->dev, + "Found FW in FAULT state, after snap dump trigger\n"); + return; + } + msleep(1000); + } +} + /* This function waits for outstanding commands on fusion to complete */ int megasas_wait_for_outstanding_fusion(struct megasas_instance *instance, int reason, int *convert) { int i, outstanding, retval = 0, hb_seconds_missed = 0; u32 fw_state; + u32 waittime_for_io_completion; - for (i = 0; i < resetwaittime; i++) { + waittime_for_io_completion = + min_t(u32, resetwaittime, + (resetwaittime - instance->snapdump_wait_time)); + + if (reason == MFI_IO_TIMEOUT_OCR) { + dev_info(&instance->pdev->dev, + "MFI command is timed out\n"); + megasas_complete_cmd_dpc_fusion((unsigned long)instance); + if (instance->snapdump_wait_time) + megasas_trigger_snap_dump(instance); + retval = 1; + goto out; + } + + for (i = 0; i < waittime_for_io_completion; i++) { /* Check if firmware is in fault state */ fw_state = instance->instancet->read_fw_status_reg( instance->reg_set) & MFI_STATE_MASK; @@ -3912,13 +3955,6 @@ int megasas_wait_for_outstanding_fusion(struct megasas_instance *instance, goto out; } - if (reason == MFI_IO_TIMEOUT_OCR) { - dev_info(&instance->pdev->dev, - "MFI IO is timed out, initiating OCR\n"); - megasas_complete_cmd_dpc_fusion((unsigned long)instance); - retval = 1; - goto out; - } /* If SR-IOV VF mode & heartbeat timeout, don't wait */ if (instance->requestorId && !reason) { @@ -3963,6 +3999,12 @@ int megasas_wait_for_outstanding_fusion(struct megasas_instance *instance, msleep(1000); } + if (instance->snapdump_wait_time) { + megasas_trigger_snap_dump(instance); + retval = 1; + goto out; + } + if (atomic_read(&instance->fw_outstanding)) { dev_err(&instance->pdev->dev, "pending commands remain after waiting, " "will reset adapter scsi%d.\n", @@ -3970,6 +4012,7 @@ int megasas_wait_for_outstanding_fusion(struct megasas_instance *instance, *convert = 1; retval = 1; } + out: return retval; } @@ -4783,6 +4826,13 @@ transition_to_ready: megasas_set_crash_dump_params(instance, MR_CRASH_BUF_TURN_OFF); + if (instance->snapdump_wait_time) { + megasas_get_snapdump_properties(instance); + dev_info(&instance->pdev->dev, + "Snap dump wait time\t: %d\n", + instance->snapdump_wait_time); + } + retval = SUCCESS; /* Adapter reset completed successfully */ |