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From: Hannes Reinecke <hare@suse.de>
To: Dongdong Hao <doubled@leap-io-kernel.com>,
	James.Bottomley@HansenPartnership.com,
	martin.petersen@oracle.com
Cc: dlemoal@kernel.org, hare@kernel.org, yjzhang@leap-io-kernel.com,
	kezijie@leap-io-kernel.com, jzzhang@leap-io-kernel.com,
	baikefan@leap-io-kernel.com, linux-scsi@vger.kernel.org
Subject: Re: [PATCH v2] scsi: leapraid: standardize NCQ priority sysfs attributes
Date: Tue, 18 Aug 2026 11:52:12 +0200	[thread overview]
Message-ID: <bed9ae35-00e9-4819-9c35-ab2a905e6220@suse.de> (raw)
In-Reply-To: <20260814090526.395704-1-doubled@leap-io-kernel.com>

On 8/14/26 11:05 AM, Dongdong Hao wrote:
> Replace the earlier LeapRAID ncq_cmd_prio_enable attribute with the
> standard sas_ncq_prio_supported and sas_ncq_prio_enable names documented
> in Documentation/ABI/testing/sysfs-block-device, and rename the
> per-device NCQ priority state to match.
> 
> The earlier ncq_cmd_prio_enable name has not yet been established as part
> of a released userspace ABI, so no compatibility alias is needed.
> 
> For LeapRAID, sas_ncq_prio_enable is backed by the driver's per-device
> NCQ priority state and controls whether RT-class I/O requests are issued
> with command priority on supported SATA devices.
> 
> Update leapraid.rst to describe the standard attribute names and paths,
> and clean up the surrounding RST text for consistency with kernel
> documentation style.
> 
> Also switch the capability check from open-coded VPD page 0x89 parsing to
> sas_ata_ncq_prio_supported(), use kstrtobool() for the enable path, and
> expose the NCQ priority attributes only for SATA devices using LeapRAID's
> target-private SAS device state.
> 
> Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
> Signed-off-by: Dongdong Hao <doubled@leap-io-kernel.com>
> ---
> Changes in v2:
>   - Reflow commit message lines to fit within 75 columns.
>   - No functional change.
> 
Reviewed-by: Hannes Reinecke <hare@kernel.org>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke                  Kernel Storage Architect
hare@suse.de                                +49 911 74053 688
SUSE Software Solutions GmbH, Frankenstr. 146, 90461 Nürnberg
HRB 36809 (AG Nürnberg), GF: I. Totev, A. McDonald, W. Knoblich

  reply	other threads:[~2026-08-18  9:52 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-14  9:05 [PATCH v2] scsi: leapraid: standardize NCQ priority sysfs attributes Dongdong Hao
2026-08-18  9:52 ` Hannes Reinecke [this message]
2026-08-24  1:58 ` Martin K. Petersen (Oracle)
2026-08-26 15:20 ` Martin K. Petersen (Oracle)

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