From: Xiang Chen <chenxiang66@xxxxxxxxxxxxx>
Check ERR bit of status to decide whether there is something wrong with
initial register-D2H FIS. If error exists, PHY reset the channel to
restart OOB.
Signed-off-by: Xiang Chen <chenxiang66@xxxxxxxxxxxxx>
Signed-off-by: John Garry <john.garry@xxxxxxxxxx>
---
drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
index a5faa4d..cda3baf 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
@@ -2537,6 +2537,16 @@ static irqreturn_t sata_int_v2_hw(int irq_no, void *p)
goto end;
}
+ /* check ERR bit of Status Register */
+ if (fis->status & ATA_ERR) {
+ dev_warn(dev, "sata int: phy%d FIS status: 0x%x\n", phy_no,
+ fis->status);
+ disable_phy_v2_hw(hisi_hba, phy_no);
+ enable_phy_v2_hw(hisi_hba, phy_no);
+ res = IRQ_NONE;
+ goto end;
+ }
+
if (unlikely(phy_no == 8)) {
u32 port_state = hisi_sas_read32(hisi_hba, PORT_STATE);
--
1.9.1
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
