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Message-ID: <1525761818.4261.12.camel@Centos6.3-64>
Date:   Tue, 08 May 2018 14:43:38 +0800
From:   Ching Huang <ching2048@...ca.com.tw>
To:     "Martin K. Petersen" <martin.petersen@...cle.com>
Cc:     James.Bottomley@...senPartnership.com, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org, dan.carpenter@...cle.com,
        hch@...radead.org, colin.king@...onical.com
Subject: Re: [PATCH 0/3] scsi: arcmsr: Add driver parameter cmd_timeout for
 scsi command timeout setting

On Tue, 2018-05-08 at 14:32 +0800, Ching Huang wrote:
> On Tue, 2018-05-08 at 01:41 -0400, Martin K. Petersen wrote:
> > Hello Ching,
> > 
> > > 1. Add driver parameter cmd_timeout, default value is ARCMSR_DEFAULT_TIMEOUT.
> > > 2. Add slave_configure callback function to set device command timeout value.
> > > 3. Update driver version to v1.40.00.06-20180504.
> > 
> > I am not so keen on arcmsr overriding the timeout set by the admin or
> > application.
> > 
> > Also, instead of introducing this module parameter, why not simply ask
> > the user to change rq_timeout?
> > 
> This timeout setting only after device has been inquiry successfully.
> Of course, user can set timeout value to /sys/block/sdX/device/timeout.
> But user does not like to set this value once command timeout occurred.
> They rather like timeout never happen.
> 
This timeout setting apply to all devices, its better than user has to
set one bye one for each device.


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