linux-kernel - Re: [PATCH v2 00/18] scsi: libsas and users: Factor out LLDD TMF code

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Date:   Fri, 18 Feb 2022 13:18:49 +0900
From:   Damien Le Moal <damien.lemoal@...nsource.wdc.com>
To:     John Garry <john.garry@...wei.com>, jejb@...ux.ibm.com,
        martin.petersen@...cle.com, artur.paszkiewicz@...el.com,
        jinpu.wang@...ud.ionos.com, chenxiang66@...ilicon.com, hch@....de
Cc:     Ajish.Koshy@...rochip.com, yanaijie@...wei.com,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-scsi@...r.kernel.org, linuxarm@...wei.com,
        liuqi115@...wei.com, Viswas.G@...rochip.com
Subject: Re: [PATCH v2 00/18] scsi: libsas and users: Factor out LLDD TMF code

On 2/18/22 00:42, John Garry wrote:
> The LLDD TMF code is almost identical between hisi_sas, pm8001, and mvsas
> drivers.
> 
> This series factors out that code into libsas, thus reducing much
> duplication and giving a net reduction of ~350 LoC.
> 
> There are some subtle differences between the core TMF handler and each
> of the LLDDs old implementation, so any review and testing is appreciated.
> 
> Some other minor patches are thrown in:
> - Delete unused macro in hisi_sas driver
> - Delete unused libsas callback
> - Delete unused SAS_SG_ERR
> - Add enum for response frame datapres field
> - Handle unrecognised errors in sas_scsi_find_task()
> 
> I have another follow-up series to factor out the internal abort code,
> which is common to hisi_sas and pm8001 drivers.
> 
> Based on mkp-scsi 5.18 staging queue at commit ac2beb4e3bd7

I tested this series with my pm8001 v5 series on top. Everything looks
good, no problems detected with both SAS and SATA drives tests. So feel
free to add:

Tested-by: Damien Le Moal <damien.lemoal@...nsource.wdc.com>

Martin,

This series and my pm8001 series have a conflict. When applying the
pm8001 patches on top of these libsas changes, patch 28 has a fairly
easy to resolve conflict. Let me know if you want me to send a v6
rebased on top of this.

Thanks !


-- 
Damien Le Moal
Western Digital Research