scsi: hisi_sas: Add time interval between two H2D FIS following soft reset spec

Xingui Yang · martinkpetersen · commit 3c62791322e4 · 2024-10-15T22:33:35.000-04:00
Spec says at least 5us between two H2D FIS when do soft reset, but be generous and sleep for about 1ms. Signed-off-by: Xingui Yang <yangxingui@huawei.com> Link: https://lore.kernel.org/r/20241008021822.2617339-11-liyihang9@huawei.com Reviewed-by: Yihang Li <liyihang9@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -1321,6 +1321,7 @@ static int hisi_sas_softreset_ata_disk(struct domain_device *device)
 	}
 
 	if (rc == TMF_RESP_FUNC_COMPLETE) {
+		usleep_range(900, 1000);
 		ata_for_each_link(link, ap, EDGE) {
 			int pmp = sata_srst_pmp(link);
 

Original file line number	Diff line number	Diff line change
`@@ -1321,6 +1321,7 @@ static int hisi_sas_softreset_ata_disk(struct domain_device *device)`
`1321`	`1321`	`}`
`1322`	`1322`
`1323`	`1323`	`if (rc == TMF_RESP_FUNC_COMPLETE) {`
	`1324`	`+ usleep_range(900, 1000);`
`1324`	`1325`	`ata_for_each_link(link, ap, EDGE) {`
`1325`	`1326`	`int pmp = sata_srst_pmp(link);`
`1326`	`1327`