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Fri, 14 Jul 2023 21:35:08 +0000 Received: from CY8PR10MB7243.namprd10.prod.outlook.com ([fe80::f5ac:d576:d989:34fa]) by CY8PR10MB7243.namprd10.prod.outlook.com ([fe80::f5ac:d576:d989:34fa%4]) with mapi id 15.20.6588.028; Fri, 14 Jul 2023 21:35:08 +0000 From: Mike Christie To: john.g.garry@oracle.com, bvanassche@acm.org, mwilck@suse.com, hch@lst.de, martin.petersen@oracle.com, linux-scsi@vger.kernel.org, james.bottomley@hansenpartnership.com Cc: Mike Christie Subject: [PATCH v10 28/33] scsi: ufs: Have scsi-ml retry start stop errors Date: Fri, 14 Jul 2023 16:34:14 -0500 Message-Id: <20230714213419.95492-29-michael.christie@oracle.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230714213419.95492-1-michael.christie@oracle.com> References: <20230714213419.95492-1-michael.christie@oracle.com> X-ClientProxiedBy: DM6PR06CA0102.namprd06.prod.outlook.com (2603:10b6:5:336::35) To CY8PR10MB7243.namprd10.prod.outlook.com (2603:10b6:930:7c::10) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CY8PR10MB7243:EE_|CH0PR10MB4921:EE_ X-MS-Office365-Filtering-Correlation-Id: 30f807d5-d155-4e73-0c08-08db84b23255 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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Signed-off-by: Mike Christie Reviewed-by: Christoph Hellwig Reviewed-by: Bart Van Assche --- drivers/ufs/core/ufshcd.c | 19 +++++++++---------- 1 file changed, 9 insertions(+), 10 deletions(-) diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index 983fae84d9e8..267c24c57396 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -9291,7 +9291,14 @@ 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 failures[] = { + { + .allowed = 2, + .result = SCMD_FAILURE_RESULT_ANY, + }, + }; const struct scsi_exec_args args = { + .failures = failures, .sshdr = sshdr, .req_flags = BLK_MQ_REQ_PM, .scmd_flags = SCMD_FAIL_IF_RECOVERING, @@ -9317,7 +9324,7 @@ 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; @@ -9343,15 +9350,7 @@ 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",