From: Mike Christie <michaelc@cs.wisc.edu>
To: Giridhar Malavali <giridhar.malavali@qlogic.com>
Cc: mdr@sgi.com,
James Bottomley <James.Bottomley@HansenPartnership.com>,
LinuxSCSI <linux-scsi@vger.kernel.org>,
Andrew Vasquez <andrew.vasquez@qlogic.com>,
vasu.dev@intel.com
Subject: Re: qla2xxx: Conditionally disable automatic queue full tracking
Date: Thu, 24 Sep 2009 14:49:22 -0500 [thread overview]
Message-ID: <4ABBCD42.8050604@cs.wisc.edu> (raw)
In-Reply-To: <5355D915-9CAE-41CD-846B-F816FE914E1B@qlogic.com>
Giridhar Malavali wrote:
> Hi Michael/James,
>
> Patches were submitted to move queue ramp up/down code recently to
> scsi mid layer. With this change, I don't see a need for a module
> parameter to disable queuefull tracking in qla2xxx driver. Andrew,
> mentioned that this got introduced to avoid wobbling behavior on the
> wire due to queue depth modifications. Just wanted to check whether the
> same need to be done in scsi mid layer too.
>
I think so. I believe Michael Reed had a valid reason for it, and I do
not see why we would not hit a similar problem with other drivers.
prev parent reply other threads:[~2009-09-24 19:49 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-23 23:59 qla2xxx: Conditionally disable automatic queue full tracking Giridhar Malavali
2009-09-24 14:42 ` Michael Reed
2009-09-24 17:05 ` Giridhar Malavali
2009-09-24 19:15 ` Michael Reed
2009-09-24 20:55 ` Giridhar Malavali
2009-09-24 21:02 ` Michael Reed
2009-09-30 1:34 ` Giridhar Malavali
2009-09-30 13:08 ` Michael Reed
2009-09-30 13:43 ` Michael Reed
2009-09-30 18:23 ` Mike Christie
2009-10-02 0:19 ` Michael Reed
2009-10-02 17:17 ` James Smart
2009-10-06 17:17 ` Michael Reed
2009-09-24 19:49 ` Mike Christie [this message]
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