linux-kernel - Re: [PATCH for-next 0/5] scsi: hisi_sas/libsas: Fix SATA devices missing issue during hisi_sas_debug_I_T_nexus

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Date:   Thu,  1 Dec 2022 03:45:32 +0000
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     jejb@...ux.ibm.com, Jie Zhan <zhanjie9@...ilicon.com>
Cc:     "Martin K . Petersen" <martin.petersen@...cle.com>,
        linux-kernel@...r.kernel.org, prime.zeng@...ilicon.com,
        john.g.garry@...cle.com, yangxingui@...wei.com,
        yanaijie@...wei.com, liyihang9@...wei.com,
        johannes.thumshirn@....com, chenxiang66@...ilicon.com,
        damien.lemoal@...nsource.wdc.com, linux-scsi@...r.kernel.org,
        linuxarm@...wei.com, duoming@....edu.cn
Subject: Re: [PATCH for-next 0/5] scsi: hisi_sas/libsas: Fix SATA devices missing issue during hisi_sas_debug_I_T_nexus_reset()

On Fri, 18 Nov 2022 16:37:09 +0800, Jie Zhan wrote:

> SATA devices on an expander may be removed and not be found again
> when I_T nexus reset and revalidation are processed simultaneously,
> which is probable to happen in hisi_sas_clear_nexus_ha().
> 
> The issue came up since commit 71453bd9d1bf ("scsi: hisi_sas: Use
> sas_ata_wait_after_reset() in IT nexus reset"), where the ex_phy's
> change count is updated in hisi_sas_debug_I_T_nexus_reset(), stopping
> future revalidation from discovering the SATA devices after link
> reset.
> 
> [...]

Applied to 6.2/scsi-queue, thanks!

[1/5] Revert "scsi: hisi_sas: Drain bcast events in hisi_sas_rescan_topology()"
      https://git.kernel.org/mkp/scsi/c/7e613be7c63d
[2/5] Revert "scsi: hisi_sas: Don't send bcast events from HW during nexus HA reset"
      https://git.kernel.org/mkp/scsi/c/94a3555d1f0f
[3/5] scsi: libsas: Add smp_ata_check_ready_type()
      https://git.kernel.org/mkp/scsi/c/9181ce3cb5d9
[4/5] scsi: hisi_sas: Fix SATA devices missing issue during I_T nexus reset
      https://git.kernel.org/mkp/scsi/c/3c2673a09cf1
[5/5] scsi: libsas: Do not export sas_ata_wait_after_reset()
      https://git.kernel.org/mkp/scsi/c/4d450cf2b00d

-- 
Martin K. Petersen	Oracle Linux Engineering