linux-kernel - Re: [PATCH 04/11] scsi: libsas: Send SMP commands through the block layer

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Message-ID: <5d33aa82-ed40-f4fb-a60d-99adc0f367ed@huawei.com>
Date:   Tue, 22 Mar 2022 14:37:55 +0000
From:   John Garry <john.garry@...wei.com>
To:     Christoph Hellwig <hch@....de>
CC:     <axboe@...nel.dk>, <damien.lemoal@...nsource.wdc.com>,
        <bvanassche@....org>, <jejb@...ux.ibm.com>,
        <martin.petersen@...cle.com>, <ming.lei@...hat.com>,
        <hare@...e.de>, <chenxiang66@...ilicon.com>,
        <linux-block@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-ide@...r.kernel.org>, <linux-scsi@...r.kernel.org>,
        <dm-devel@...hat.com>, <beanhuo@...ron.com>
Subject: Re: [PATCH 04/11] scsi: libsas: Send SMP commands through the block
 layer

On 22/03/2022 11:23, Christoph Hellwig wrote:
> Wouldn't it make more sense to have a new member in th Scsi_Host_template
> that gets called for these request early from ->queue_rq instead of the
> new request_queue and custome ops?

I had something like this before, but it also has its disadvantages.

Let me revisit.

> 
> FYI, I think reusing the block layer for all these command is a good
> idea but the way it is done here seems a bit ugly and not very
> maintainable.
> 

Cheers,
John