From: Tejun Heo <htejun@gmail.com>
To: jgarzik@pobox.com, alan@lxorguk.ukuu.org.uk, lkml@rtr.ca,
forrest.zhao@intel.com, linux-ide@vger.kernel.org
Cc: Tejun Heo <htejun@gmail.com>
Subject: [PATCH 02/12] libata-pmp: update ata_eh_reset() for PMP
Date: Sat, 8 Jul 2006 14:58:07 +0900 [thread overview]
Message-ID: <11523382872738-git-send-email-htejun@gmail.com> (raw)
In-Reply-To: <11523382873130-git-send-email-htejun@gmail.com>
PMP always requires SRST to be enabled. Also, hardreset reports
classification code from the first device when PMP is attached.
Update ata_eh_reset() such that followup softreset is performed if the
controller is PMP capable.
Signed-off-by: Tejun Heo <htejun@gmail.com>
---
drivers/scsi/libata-eh.c | 7 +++++--
1 files changed, 5 insertions(+), 2 deletions(-)
2cf75f99537b7ef01bacb8c1f946b1bd2f7ba975
diff --git a/drivers/scsi/libata-eh.c b/drivers/scsi/libata-eh.c
index 122226b..0a6f17e 100644
--- a/drivers/scsi/libata-eh.c
+++ b/drivers/scsi/libata-eh.c
@@ -1552,13 +1552,16 @@ static int ata_do_reset(struct ata_link
return 0;
}
-static int ata_eh_followup_srst_needed(int rc, int classify,
+static int ata_eh_followup_srst_needed(struct ata_port *ap,
+ int rc, int classify,
const unsigned int *classes)
{
if (rc == -EAGAIN)
return 1;
if (rc != 0)
return 0;
+ if (ap->flags & ATA_FLAG_PMP)
+ return 1;
if (classify && classes[0] == ATA_DEV_UNKNOWN)
return 1;
return 0;
@@ -1633,7 +1636,7 @@ int ata_eh_reset(struct ata_link *link,
did_followup_srst = 0;
if (reset == hardreset &&
- ata_eh_followup_srst_needed(rc, classify, classes)) {
+ ata_eh_followup_srst_needed(link->ap, rc, classify, classes)) {
/* okay, let's do follow-up softreset */
did_followup_srst = 1;
reset = softreset;
--
1.3.2
next prev parent reply other threads:[~2006-07-08 5:57 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-08 5:58 [PATCHSET 3/3] implement PMP support, take 2 Tejun Heo
2006-07-08 5:58 ` Tejun Heo [this message]
2006-07-08 5:58 ` [PATCH 01/12] libata-pmp: add PMP related constants, fields, ops and update helpers Tejun Heo
2006-07-19 20:34 ` Jeff Garzik
2006-07-08 5:58 ` [PATCH 04/12] libata-pmp: implement Port Multiplier support Tejun Heo
2006-07-08 5:58 ` [PATCH 03/12] libata-pmp: implement ATA_LFLAG_DISABLED Tejun Heo
2006-07-19 20:36 ` Jeff Garzik
2006-07-24 6:52 ` Tejun Heo
2006-07-08 5:58 ` [PATCH 07/12] sata_sil24: add PMP related constants Tejun Heo
2006-07-08 5:58 ` [PATCH 05/12] libata-pmp: hook PMP support and enable it Tejun Heo
2006-07-08 5:58 ` [PATCH 08/12] sata_sil24: replace sil24_update_tf() with sil24_read_tf() Tejun Heo
2006-07-08 5:58 ` [PATCH 09/12] sata_sil24: separate out sil24_exec_polled_cmd() Tejun Heo
2006-07-08 5:58 ` [PATCH 10/12] sata_sil24: separate out sil24_do_softreset() Tejun Heo
2006-07-08 5:58 ` [PATCH 06/12] sata_sil24: rename PMP related constants Tejun Heo
2006-07-08 5:58 ` [PATCH 12/12] sata_sil24: implement PORT_RST Tejun Heo
2006-07-08 5:58 ` [PATCH 11/12] sata_sil24: implement PMP support Tejun Heo
2006-07-19 20:37 ` [PATCHSET 3/3] implement PMP support, take 2 Jeff Garzik
2006-07-24 6:56 ` Tejun Heo
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