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From: John Garry <john.g.garry@oracle.com>
To: Hannes Reinecke <hare@suse.de>,
	martin.petersen@oracle.com,
	james.bottomley@hansenpartnership.com, hare@suse.com,
	bmarzins@redhat.com
Cc: jmeneghi@redhat.com, linux-scsi@vger.kernel.org,
	michael.christie@oracle.com, snitzer@kernel.org,
	dm-devel@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 07/13] scsi: alua: Add scsi_alua_stpg_run()
Date: Wed, 18 Mar 2026 08:59:27 +0000	[thread overview]
Message-ID: <f0625323-655f-49bf-bda8-324c0fa4f520@oracle.com> (raw)
In-Reply-To: <1bf4f9c3-7ab9-4be9-9061-0611a41242d3@suse.de>

On 18/03/2026 07:57, Hannes Reinecke wrote:
>> +static inline int scsi_alua_stpg_run(struct scsi_device *sdev, bool 
>> optimize)
>> +{
>> +    return 0;
>> +}
>>   static inline int scsi_alua_sdev_init(struct scsi_device *sdev)
>>   {
>>       return 0;
> 
> No. STPG handling should be done in scsi_dh_alua _only_. We really
> should not attempt this in the scsi core.

It's not so nice to have the functionality spread out. The way I see it 
is that drivers/scsi/scsi_alua.c is mostly a library, but also has 
functionality to "drive" ALUA for native SCSI multipathing.

Anyway, can you confirm which of the following do you think from this 
series should be in scsi_dh_alua.c:

- scsi_alua_stpg_run()
- scsi_alua_stpg()
- submit_stpg()

You already said scsi_alua_stpg_run() should be.

Thanks,
John

  reply	other threads:[~2026-03-18  8:59 UTC|newest]

Thread overview: 63+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-17 12:06 [PATCH 00/13] scsi: Core ALUA driver John Garry
2026-03-17 12:06 ` [PATCH 01/13] scsi: scsi_dh_alua: Delete alua_port_group John Garry
2026-03-18  7:44   ` Hannes Reinecke
2026-03-18  8:53     ` John Garry
2026-03-23  0:08   ` Benjamin Marzinski
2026-03-23 10:33     ` John Garry
2026-03-23 16:15       ` Benjamin Marzinski
2026-03-23 18:07         ` John Garry
2026-03-17 12:06 ` [PATCH 02/13] scsi: alua: Create a core ALUA driver John Garry
2026-03-18  7:47   ` Hannes Reinecke
2026-03-23 12:56     ` John Garry
2026-03-18 17:17   ` kernel test robot
2026-03-18 22:54   ` kernel test robot
2026-03-17 12:06 ` [PATCH 03/13] scsi: alua: Add scsi_alua_rtpg() John Garry
2026-03-18  7:50   ` Hannes Reinecke
2026-03-23 12:58     ` John Garry
2026-03-17 12:06 ` [PATCH 04/13] scsi: alua: Add scsi_alua_stpg() John Garry
2026-03-18  7:53   ` Hannes Reinecke
2026-03-17 12:06 ` [PATCH 05/13] scsi: alua: Add scsi_alua_tur() John Garry
2026-03-18  7:54   ` Hannes Reinecke
2026-03-23 13:42     ` John Garry
2026-03-24 10:49       ` John Garry
2026-03-17 12:06 ` [PATCH 06/13] scsi: alua: Add scsi_alua_rtpg_run() John Garry
2026-03-17 12:06 ` [PATCH 07/13] scsi: alua: Add scsi_alua_stpg_run() John Garry
2026-03-18  7:57   ` Hannes Reinecke
2026-03-18  8:59     ` John Garry [this message]
2026-03-18  9:24       ` Hannes Reinecke
2026-03-23 13:58         ` John Garry
2026-03-17 12:06 ` [PATCH 08/13] scsi: alua: Add scsi_alua_check_tpgs() John Garry
2026-03-18  7:57   ` Hannes Reinecke
2026-03-17 12:06 ` [PATCH 09/13] scsi: alua: Add scsi_alua_handle_state_transition() John Garry
2026-03-18  7:58   ` Hannes Reinecke
2026-03-23 13:43     ` John Garry
2026-03-17 12:07 ` [PATCH 10/13] scsi: alua: Add scsi_alua_prep_fn() John Garry
2026-03-18  8:01   ` Hannes Reinecke
2026-03-23 13:49     ` John Garry
2026-03-17 12:07 ` [PATCH 11/13] scsi: alua: Add scsi_device_alua_implicit() John Garry
2026-03-18  8:02   ` Hannes Reinecke
2026-03-23 13:50     ` John Garry
2026-03-17 12:07 ` [PATCH 12/13] scsi: scsi_dh_alua: Switch to use core support John Garry
2026-03-23  1:47   ` Benjamin Marzinski
2026-03-23 11:59     ` John Garry
2026-03-17 12:07 ` [PATCH 13/13] scsi: core: Add implicit ALUA support John Garry
2026-03-18  8:08   ` Hannes Reinecke
2026-03-18 23:08   ` kernel test robot
2026-03-23  1:58   ` Benjamin Marzinski
2026-03-23 12:52     ` John Garry
2026-03-23 17:29       ` Benjamin Marzinski
2026-03-23 18:13         ` John Garry
2026-03-22 17:37 ` [PATCH 00/13] scsi: Core ALUA driver Benjamin Marzinski
2026-03-23  9:57   ` John Garry
2026-03-23 16:25     ` Benjamin Marzinski
2026-03-23 18:04       ` John Garry
2026-03-23 19:45         ` Benjamin Marzinski
2026-03-24 10:57           ` John Garry
2026-03-24 13:58             ` Benjamin Marzinski
2026-03-24 15:12               ` John Garry
2026-03-24 15:48                 ` Benjamin Marzinski
2026-03-24 16:25                   ` John Garry
2026-03-26 10:19                 ` Hannes Reinecke
2026-03-26 12:16                   ` John Garry
2026-03-27  7:02                     ` Hannes Reinecke
2026-03-26 10:17               ` Hannes Reinecke

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