linux-kernel - Re: [PATCH v2 2/4] target: Implement TMR_ABORT_TASK

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Message-ID: <YtggwBMKgIJqN4mT@yadro.com>
Date:   Wed, 20 Jul 2022 18:41:10 +0300
From:   Konstantin Shelekhin <k.shelekhin@...ro.com>
To:     Mike Christie <michael.christie@...cle.com>
CC:     Thinh Nguyen <Thinh.Nguyen@...opsys.com>,
        <linux-kernel@...r.kernel.org>, <linux-scsi@...r.kernel.org>,
        <target-devel@...r.kernel.org>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        John Youn <John.Youn@...opsys.com>, <linux-usb@...r.kernel.org>
Subject: Re: [PATCH v2 2/4] target: Implement TMR_ABORT_TASK_SET

On Tue, Jul 19, 2022 at 10:56:07AM -0500, Mike Christie wrote:
> «Внимание! Данное письмо от внешнего адресата!»
> 
> On 7/18/22 9:07 PM, Thinh Nguyen wrote:
> > Task ABORT TASK SET function is required by SCSI transport protocol
> 
> What OS is using this and how do they use it? For the latter, does the
> OS try an abort for each cmd first, then try an abort task set if the
> aborts fail (does fail mean get a response that indicates failure and
> also does a timeout count)? Or does it start with the abort task set?

AIX IIRC. However, this feature also requires valid bits in one of the
VPD pages.