scsi: hpsa: fallback to use legacy REPORT PHYS command
Older SmartArray controllers (eg SmartArray 64xx) do not support the
extended REPORT PHYS command, so fallback to use the legacy version
here.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Acked-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 220ccd4..f5ab690 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -3632,8 +3632,32 @@ static int hpsa_scsi_do_report_luns(struct ctlr_info *h, int logical,
static inline int hpsa_scsi_do_report_phys_luns(struct ctlr_info *h,
struct ReportExtendedLUNdata *buf, int bufsize)
{
- return hpsa_scsi_do_report_luns(h, 0, buf, bufsize,
- HPSA_REPORT_PHYS_EXTENDED);
+ int rc;
+ struct ReportLUNdata *lbuf;
+
+ rc = hpsa_scsi_do_report_luns(h, 0, buf, bufsize,
+ HPSA_REPORT_PHYS_EXTENDED);
+ if (!rc || !hpsa_allow_any)
+ return rc;
+
+ /* REPORT PHYS EXTENDED is not supported */
+ lbuf = kzalloc(sizeof(*lbuf), GFP_KERNEL);
+ if (!lbuf)
+ return -ENOMEM;
+
+ rc = hpsa_scsi_do_report_luns(h, 0, lbuf, sizeof(*lbuf), 0);
+ if (!rc) {
+ int i;
+ u32 nphys;
+
+ /* Copy ReportLUNdata header */
+ memcpy(buf, lbuf, 8);
+ nphys = be32_to_cpu(*((__be32 *)lbuf->LUNListLength)) / 8;
+ for (i = 0; i < nphys; i++)
+ memcpy(buf->LUN[i].lunid, lbuf->LUN[i], 8);
+ }
+ kfree(lbuf);
+ return rc;
}
static inline int hpsa_scsi_do_report_log_luns(struct ctlr_info *h,