From: Tej Parkash <tej.parkash@qlogic.com>
Date: Mon, 30 Apr 2012 11:12:19 +0000 (-0700)
Subject: [SCSI] qla4xxx: Add change_queue_depth API support
X-Git-Tag: v3.5-rc1~25^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f7b4aa63650484e6ab11e8e00a6625fa57a67bd1;p=pandora-kernel.git

[SCSI] qla4xxx: Add change_queue_depth API support

change_queue_depth will adjust device queuedepth upon receiving
"SAM_STAT_TASK_SET_FULL" scsi status from the target.
Also added ql4xqfulltracking command line param to enable or disable
queuefull tracking. One can disabling queuefull tracking to ensure
user set scsi device queuedepth is not altered.

Signed-off-by: Tej Parkash <tej.parkash@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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