linux-kernel - Re: [PATCH 0/2] scsi:donot skip lun if inquiry returns PQ=1 for all hosts

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Message-ID: <5129c84b-38e5-8be4-6411-fcc003776d70@huawei.com>
Date:   Fri, 16 Dec 2022 19:41:26 +0800
From:   Wenchao Hao <haowenchao@...wei.com>
To:     Christoph Hellwig <hch@...radead.org>
CC:     "Martin K . Petersen" <martin.petersen@...cle.com>,
        Mike Christie <michael.christie@...cle.com>,
        "James E . J . Bottomley" <jejb@...ux.ibm.com>,
        Lee Duncan <lduncan@...e.com>, Chris Leech <cleech@...hat.com>,
        <open-iscsi@...glegroups.com>, <linux-scsi@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <liuzhiqiang26@...wei.com>,
        <linfeilong@...wei.com>
Subject: Re: [PATCH 0/2] scsi:donot skip lun if inquiry returns PQ=1 for all
 hosts


On 2022/12/16 15:12, Christoph Hellwig wrote:
> On Thu, Dec 15, 2022 at 05:09:31PM +0800, Wenchao Hao wrote:
>> In my opinion, if the addressed lun still response the
>> inquiry and other commands, we should not skip it,
>> maybe let the scsi drivers like sd/st/sg to determine
>> how to handle this lun accordint to the PQ value.
>>
>> As discussed in following mail, another drivers would
>> be broken too.
> 
> So why do you force a specific behavior for iSCSI?
> .

For nothing, I want the iscsi_tcp transport do not skip PQ=1 default
as what it did before commit 948e922fc4461 ("scsi: core: map PQ=1,
PDT=other values to SCSI_SCAN_TARGET_PRESENT").