From: Tejun Heo <htejun@gmail.com>
To: Jeff Garzik <jeff@garzik.org>,
Alan Cox <alan@lxorguk.ukuu.org.uk>,
linux-ide@vger.kernel.org, Forrest Zhao <forrest.zhao@gmail.com>
Cc: Tejun Heo <htejun@gmail.com>
Subject: [PATCH 02/12] libata: implement AC_ERR_NCQ
Date: Sun, 1 Jul 2007 18:53:37 +0900 [thread overview]
Message-ID: <11832836172598-git-send-email-htejun@gmail.com> (raw)
In-Reply-To: <118328361627-git-send-email-htejun@gmail.com>
When an NCQ command fails, all commands in flight are aborted and the
offending one is reported using log page 10h. Depending on controller
characteristics and LLD implementation, all commands may appear as
having a device error due to shared TF status making it hard to
determine what's actually going on.
This patch adds AC_ERR_NCQ, marks the command reported by log page 10h
with it and print extra "<F>" after the error report for the command
to help distinguishing the offending command.
Signed-off-by: Tejun Heo <htejun@gmail.com>
---
drivers/ata/libata-eh.c | 7 ++++---
include/linux/libata.h | 3 ++-
2 files changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 744665a..8d8961f 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -1130,7 +1130,7 @@ static void ata_eh_analyze_ncq_error(struct ata_port *ap)
/* we've got the perpetrator, condemn it */
qc = __ata_qc_from_tag(ap, tag);
memcpy(&qc->result_tf, &tf, sizeof(tf));
- qc->err_mask |= AC_ERR_DEV;
+ qc->err_mask |= AC_ERR_DEV | AC_ERR_NCQ;
ehc->i.err_mask &= ~AC_ERR_DEV;
}
@@ -1551,7 +1551,7 @@ static void ata_eh_report(struct ata_port *ap)
"cmd %02x/%02x:%02x:%02x:%02x:%02x/%02x:%02x:%02x:%02x:%02x/%02x "
"tag %d cdb 0x%x data %u %s\n "
"res %02x/%02x:%02x:%02x:%02x:%02x/%02x:%02x:%02x:%02x:%02x/%02x "
- "Emask 0x%x (%s)\n",
+ "Emask 0x%x (%s)%s\n",
cmd->command, cmd->feature, cmd->nsect,
cmd->lbal, cmd->lbam, cmd->lbah,
cmd->hob_feature, cmd->hob_nsect,
@@ -1562,7 +1562,8 @@ static void ata_eh_report(struct ata_port *ap)
res->lbal, res->lbam, res->lbah,
res->hob_feature, res->hob_nsect,
res->hob_lbal, res->hob_lbam, res->hob_lbah,
- res->device, qc->err_mask, ata_err_string(qc->err_mask));
+ res->device, qc->err_mask, ata_err_string(qc->err_mask),
+ qc->err_mask & AC_ERR_NCQ ? " <F>" : "");
}
}
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 8d3e391..c2cad0f 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -322,7 +322,8 @@ enum ata_completion_errors {
AC_ERR_SYSTEM = (1 << 6), /* system error */
AC_ERR_INVALID = (1 << 7), /* invalid argument */
AC_ERR_OTHER = (1 << 8), /* unknown */
- AC_ERR_NODEV_HINT = (1 << 9), /* polling device detection hint */
+ AC_ERR_NCQ = (1 << 9), /* marker for offending NCQ qc */
+ AC_ERR_NODEV_HINT = (1 << 10), /* polling device detection hint */
};
/* forward declarations */
--
1.5.0.3
next prev parent reply other threads:[~2007-07-01 9:53 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-01 9:53 [PATCHSET 1/4] libata: misc updates in preparation of PMP support Tejun Heo
2007-07-01 9:53 ` [PATCH 01/12] libata: update EH report formatting Tejun Heo
2007-07-03 14:22 ` Jeff Garzik
2007-07-03 15:02 ` Tejun Heo
2007-07-01 9:53 ` [PATCH 03/12] libata: make ->scr_read/write callbacks return error code Tejun Heo
2007-07-03 14:26 ` Jeff Garzik
2007-07-01 9:53 ` [PATCH 05/12] ahci: implement SCR_NOTIFICATION r/w Tejun Heo
2007-07-03 14:31 ` Jeff Garzik
2007-07-03 15:00 ` Tejun Heo
2007-07-13 11:53 ` Tejun Heo
2007-07-01 9:53 ` Tejun Heo [this message]
2007-07-03 14:24 ` [PATCH 02/12] libata: implement AC_ERR_NCQ Jeff Garzik
2007-07-03 14:58 ` Tejun Heo
2007-07-01 9:53 ` [PATCH 04/12] ahci: make NO_NCQ handling more consistent Tejun Heo
2007-07-03 14:28 ` Jeff Garzik
2007-07-01 9:53 ` [PATCH 07/12] libata: quickly trigger SATA SPD down after debouncing failed Tejun Heo
2007-07-01 9:53 ` [PATCH 09/12] libata: reorganize ata_ehi_hotplugged() Tejun Heo
2007-07-01 9:53 ` [PATCH 12/12] libata: implement EH fast drain Tejun Heo
2007-07-03 14:37 ` Jeff Garzik
2007-07-03 15:09 ` Tejun Heo
2007-07-01 9:53 ` [PATCH 08/12] libata: improve SCSI scan failure handling Tejun Heo
2007-07-01 9:53 ` [PATCH 06/12] libata: improve SATA PHY speed down logic Tejun Heo
2007-07-01 9:53 ` [PATCH 10/12] libata: clear HOTPLUG flag after a reset Tejun Heo
2007-07-03 14:34 ` Jeff Garzik
2007-07-01 9:53 ` [PATCH 11/12] libata: schedule probing after SError access failure during autopsy Tejun Heo
2007-07-03 14:35 ` Jeff Garzik
2007-07-03 15:05 ` Tejun Heo
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