From: yxlraid@gmail.com
To: JBottomley@parallels.com
Cc: jack_wang@usish.com, lucas.demarchi@profusion.mobi,
maciej.trela@intel.com, dan.j.williams@intel.com,
linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org,
Xiangliang Yu <yuxiangl@marvell.com>
Subject: [PATCH 5/8] [SCSI] mvsas: change SL mode0 register value
Date: Thu, 29 Sep 2011 00:34:32 -0700 [thread overview]
Message-ID: <4e834cc3.280d440a.5c55.19fb@mx.google.com> (raw)
In-Reply-To: <mvsas>
From: Xiangliang Yu <yuxiangl@marvell.com>
-- change connection behavior
-- set bit8 to 1 for performance tuning
-- set bit0 to 0 to enable retry for no_dest reject case.
Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com>
---
drivers/scsi/mvsas/mv_94xx.c | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/drivers/scsi/mvsas/mv_94xx.c b/drivers/scsi/mvsas/mv_94xx.c
index ca2b9d9..4d1a8c7 100644
--- a/drivers/scsi/mvsas/mv_94xx.c
+++ b/drivers/scsi/mvsas/mv_94xx.c
@@ -511,6 +511,14 @@ static int __devinit mvs_94xx_init(struct mvs_info *mvi)
tmp |= CINT_PHY_MASK;
mw32(MVS_INT_MASK, tmp);
+ /* change the connection open-close behavior (bit 9)
+ * set bit8 to 1 for performance tuning */
+ tmp = mvs_cr32(mvi, CMD_SL_MODE0);
+ tmp |= 0x00000300;
+ /* set bit0 to 0 to enable retry for no_dest reject case */
+ tmp &= 0xFFFFFFFE;
+ mvs_cw32(mvi, CMD_SL_MODE0, tmp);
+
/* Enable SRS interrupt */
mw32(MVS_INT_MASK_SRS_0, 0xFFFF);
--
1.7.4.4
next prev parent reply other threads:[~2011-09-29 7:34 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <mvsas>
2011-09-29 7:32 ` [PATCH 1/8] [SCSI] mvsas: fix expander link error yxlraid
2011-09-29 7:33 ` [PATCH 2/8] [SCSI] mvsas: add support for 9480 device id yxlraid
2011-09-29 7:33 ` [PATCH 3/8] [SCSI] mvsas: fixed some disk spin up issue yxlraid
2011-09-29 7:34 ` [PATCH 4/8] [SCSI] mvsas: fixed wrong destination when hiting NAK for command frame yxlraid
2011-09-29 7:34 ` yxlraid [this message]
2011-09-29 7:34 ` [PATCH 6/8] [SCSI] mvsas: expander write performance enhancement yxlraid
2011-09-29 7:35 ` [PATCH 7/8] [SCSI] mvsas: fixed SMP request watchdog timeout issue yxlraid
2011-09-29 7:35 ` [PATCH 8/8] [SCSI] mvsas: update driver version yxlraid
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4e834cc3.280d440a.5c55.19fb@mx.google.com \
--to=yxlraid@gmail.com \
--cc=JBottomley@parallels.com \
--cc=dan.j.williams@intel.com \
--cc=jack_wang@usish.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-scsi@vger.kernel.org \
--cc=lucas.demarchi@profusion.mobi \
--cc=maciej.trela@intel.com \
--cc=yuxiangl@marvell.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox