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megaraid_sas: SPERC OCR changes
This patch fixes online controller resets on SRIOV-enabled series of Avago controllers. 1) Remove late detection heartbeat. 2) Change in the behavior if the FW found in READY/OPERATIONAL state. Signed-off-by: Uday Lingala <uday.lingala@avagotech.com> Signed-off-by: Sumit Saxena <sumit.saxena@avagotech.com> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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e3d178ca77
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3885c26b77
1 changed files with 16 additions and 57 deletions
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@ -3462,52 +3462,7 @@ int megasas_reset_fusion(struct Scsi_Host *shost, int reason)
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/* Let SR-IOV VF & PF sync up if there was a HB failure */
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if (instance->requestorId && !reason) {
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msleep(MEGASAS_OCR_SETTLE_TIME_VF);
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/* Look for a late HB update after VF settle time */
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if (abs_state == MFI_STATE_OPERATIONAL &&
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(instance->hb_host_mem->HB.fwCounter !=
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instance->hb_host_mem->HB.driverCounter)) {
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instance->hb_host_mem->HB.driverCounter =
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instance->hb_host_mem->HB.fwCounter;
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dev_warn(&instance->pdev->dev, "SR-IOV:"
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"Late FW heartbeat update for "
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"scsi%d.\n",
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instance->host->host_no);
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} else {
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/* In VF mode, first poll for FW ready */
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for (i = 0;
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i < (MEGASAS_RESET_WAIT_TIME * 1000);
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i += 20) {
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status_reg =
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instance->instancet->
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read_fw_status_reg(
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instance->reg_set);
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abs_state = status_reg &
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MFI_STATE_MASK;
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if (abs_state == MFI_STATE_READY) {
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dev_warn(&instance->pdev->dev,
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"SR-IOV: FW was found"
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"to be in ready state "
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"for scsi%d.\n",
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instance->host->host_no);
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break;
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}
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msleep(20);
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}
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if (abs_state != MFI_STATE_READY) {
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dev_warn(&instance->pdev->dev, "SR-IOV: "
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"FW not in ready state after %d"
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" seconds for scsi%d, status_reg = "
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"0x%x.\n",
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MEGASAS_RESET_WAIT_TIME,
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instance->host->host_no,
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status_reg);
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megaraid_sas_kill_hba(instance);
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instance->skip_heartbeat_timer_del = 1;
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atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR);
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retval = FAILED;
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goto out;
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}
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}
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goto transition_to_ready;
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}
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/* Now try to reset the chip */
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@ -3516,25 +3471,28 @@ int megasas_reset_fusion(struct Scsi_Host *shost, int reason)
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if (instance->instancet->adp_reset
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(instance, instance->reg_set))
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continue;
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transition_to_ready:
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/* Wait for FW to become ready */
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if (megasas_transition_to_ready(instance, 1)) {
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dev_warn(&instance->pdev->dev, "Failed to "
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"transition controller to ready "
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"for scsi%d.\n",
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instance->host->host_no);
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continue;
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dev_warn(&instance->pdev->dev,
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"Failed to transition controller to ready for "
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"scsi%d.\n", instance->host->host_no);
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if (instance->requestorId && !reason)
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goto fail_kill_adapter;
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else
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continue;
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}
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megasas_reset_reply_desc(instance);
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megasas_fusion_update_can_queue(instance, OCR_CONTEXT);
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if (megasas_ioc_init_fusion(instance)) {
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dev_warn(&instance->pdev->dev,
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"megasas_ioc_init_fusion() failed!"
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" for scsi%d\n",
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instance->host->host_no);
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continue;
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"megasas_ioc_init_fusion() failed! for "
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"scsi%d\n", instance->host->host_no);
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if (instance->requestorId && !reason)
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goto fail_kill_adapter;
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else
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continue;
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}
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megasas_refire_mgmt_cmd(instance);
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@ -3591,6 +3549,7 @@ int megasas_reset_fusion(struct Scsi_Host *shost, int reason)
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retval = SUCCESS;
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goto out;
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}
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fail_kill_adapter:
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/* Reset failed, kill the adapter */
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dev_warn(&instance->pdev->dev, "Reset failed, killing "
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"adapter scsi%d.\n", instance->host->host_no);
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