From: John Garry <john.garry@huawei.com>
To: <JBottomley@odin.com>, <martin.petersen@oracle.com>
Cc: <linuxarm@huawei.com>, <john.garry2@mail.dcu.ie>,
<linux-scsi@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<ricardo.salveti@linaro.org>, John Garry <john.garry@huawei.com>
Subject: [PATCH] hisi_sas: fix v1 hw check for slot error
Date: Wed, 27 Jan 2016 01:31:17 +0800 [thread overview]
Message-ID: <1453829477-40725-1-git-send-email-john.garry@huawei.com> (raw)
Completion header bit CMPLT_HDR_RSPNS_XFRD flags
whether the response frame is received into host memory,
and not whether the response frame has an error.
As such, change the decision on whether a slot has
an error.
Also redundant check on CMPLT_HDR_CMD_CMPLT_MSK is
removed.
Fixes: 27a3f229 ("hisi_sas: Add cq interrupt handler")
Signed-off-by: John Garry <john.garry@huawei.com>
Tested-by: Ricardo Salveti <ricardo.salveti@linaro.org>
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
index 057fdeb..eea24d7 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
@@ -1289,13 +1289,10 @@ static int slot_complete_v1_hw(struct hisi_hba *hisi_hba,
goto out;
}
- if (cmplt_hdr_data & CMPLT_HDR_ERR_RCRD_XFRD_MSK) {
- if (!(cmplt_hdr_data & CMPLT_HDR_CMD_CMPLT_MSK) ||
- !(cmplt_hdr_data & CMPLT_HDR_RSPNS_XFRD_MSK))
- ts->stat = SAS_DATA_OVERRUN;
- else
- slot_err_v1_hw(hisi_hba, task, slot);
+ if (cmplt_hdr_data & CMPLT_HDR_ERR_RCRD_XFRD_MSK &&
+ !(cmplt_hdr_data & CMPLT_HDR_RSPNS_XFRD_MSK)) {
+ slot_err_v1_hw(hisi_hba, task, slot);
goto out;
}
--
1.9.1
next reply other threads:[~2016-01-26 17:21 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-26 17:31 John Garry [this message]
2016-01-27 2:19 ` Martin K. Petersen
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