From 29f4c9f5df4815bb216281ddfa6bbb270161b01a Mon Sep 17 00:00:00 2001 From: Suganath Prabu S Date: Thu, 17 Nov 2016 16:15:58 +0530 Subject: [PATCH] scsi: mpt3sas: Unblock device after controller reset Orabug: 25639713 While issuing any ATA passthrough command to firmware the driver will block the device. But it will unblock the device only if the I/O completes through the ISR path. If a controller reset occurs before command completion the device will remain in blocked state. Make sure we unblock the device following a controller reset if an ATA passthrough command was queued. [mkp: clarified patch description] Cc: # v4.4+ Fixes: ac6c2a93bd07 ("mpt3sas: Fix for SATA drive in blocked state, after diag reset") Signed-off-by: Suganath Prabu S Signed-off-by: Martin K. Petersen (cherry picked from commit 7ff723ad0f87feba43dda45fdae71206063dd7d4) Signed-off-by: Brian Maly Conflicts: drivers/scsi/mpt3sas/mpt3sas_scsih.c --- drivers/scsi/mpt3sas/mpt3sas_scsih.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c index c6f934d904ae..ee02aba0262f 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c +++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c @@ -3899,6 +3899,11 @@ _scsih_temp_threshold_events(struct MPT3SAS_ADAPTER *ioc, } } +static inline bool ata_12_16_cmd(struct scsi_cmnd *scmd) +{ + return (scmd->cmnd[0] == ATA_12 || scmd->cmnd[0] == ATA_16); +} + /** * _scsih_flush_running_cmds - completing outstanding commands. * @ioc: per adapter object @@ -3920,6 +3925,9 @@ _scsih_flush_running_cmds(struct MPT3SAS_ADAPTER *ioc) if (!scmd) continue; count++; + if (ata_12_16_cmd(scmd)) + scsi_internal_device_unblock(scmd->device, + SDEV_RUNNING); mpt3sas_base_free_smid(ioc, smid); scsi_dma_unmap(scmd); if (ioc->pci_error_recovery) -- 2.50.1