From b8c3a7bac9b6cddeeb7cb82f3372310ecabf83ef Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Mon, 22 Jan 2024 18:22:19 -0600 Subject: scsi: ufs: Have midlayer retry start stop errors This has the SCSI midlayer retry errors instead of driving them itself. Signed-off-by: Mike Christie Link: https://lore.kernel.org/r/20240123002220.129141-19-michael.christie@oracle.com Acked-by: Christoph Hellwig Signed-off-by: Martin K. Petersen --- drivers/ufs/core/ufshcd.c | 22 ++++++++++++---------- 1 file changed, 12 insertions(+), 10 deletions(-) (limited to 'drivers/ufs/core') diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index 029d017fc1b6..5cd9509e0c31 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -9475,7 +9475,17 @@ static int ufshcd_execute_start_stop(struct scsi_device *sdev, struct scsi_sense_hdr *sshdr) { const unsigned char cdb[6] = { START_STOP, 0, 0, 0, pwr_mode << 4, 0 }; + struct scsi_failure failure_defs[] = { + { + .allowed = 2, + .result = SCMD_FAILURE_RESULT_ANY, + }, + }; + struct scsi_failures failures = { + .failure_definitions = failure_defs, + }; const struct scsi_exec_args args = { + .failures = &failures, .sshdr = sshdr, .req_flags = BLK_MQ_REQ_PM, .scmd_flags = SCMD_FAIL_IF_RECOVERING, @@ -9501,7 +9511,7 @@ static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba, struct scsi_sense_hdr sshdr; struct scsi_device *sdp; unsigned long flags; - int ret, retries; + int ret; spin_lock_irqsave(hba->host->host_lock, flags); sdp = hba->ufs_device_wlun; @@ -9527,15 +9537,7 @@ static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba, * callbacks hence set the RQF_PM flag so that it doesn't resume the * already suspended childs. */ - for (retries = 3; retries > 0; --retries) { - ret = ufshcd_execute_start_stop(sdp, pwr_mode, &sshdr); - /* - * scsi_execute() only returns a negative value if the request - * queue is dying. - */ - if (ret <= 0) - break; - } + ret = ufshcd_execute_start_stop(sdp, pwr_mode, &sshdr); if (ret) { sdev_printk(KERN_WARNING, sdp, "START_STOP failed for power mode: %d, result %x\n", -- cgit v1.2.3