From: "Martin K. Petersen" <martin.petersen@oracle.com>
To: Douglas Gilbert <dgilbert@interlog.com>
Cc: linux-scsi@vger.kernel.org, martin.petersen@oracle.com,
Bart.VanAssche@wdc.com, hare@suse.de
Subject: Re: [PATCH v3 0/5] scsi_debug: add write scattered support
Date: Mon, 08 Jan 2018 22:20:24 -0500 [thread overview]
Message-ID: <yq1373fogzr.fsf@oracle.com> (raw)
In-Reply-To: <20171223174814.3902-1-dgilbert@interlog.com> (Douglas Gilbert's message of "Sat, 23 Dec 2017 12:48:09 -0500")
Douglas,
> While testing the WRITE SCATTERED command support in a new sg3_utils
> utility (sg_write_x) it was helpful to have a target that supported
> this command. This command might be attractive to other kernel
> subsystems. Even if end devices don't support this command yet, it
> would most likely be a performance win if SCSI LLDs supported it (by
> breaking it down to a series of WRITE commands), as that would cut
> down the overhead of the block layer, the ULD (e.g. sd) and the SCSI
> midlevel.
Applied to 4.16/scsi-queue, thanks!
--
Martin K. Petersen Oracle Linux Engineering
prev parent reply other threads:[~2018-01-09 3:20 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-23 17:48 [PATCH v3 0/5] scsi_debug: add write scattered support Douglas Gilbert
2017-12-23 17:48 ` [PATCH v3 1/5] scsi_debug: tab, kstrto changes Douglas Gilbert
2017-12-23 17:48 ` [PATCH v3 2/5] scsi_debug: fix group_number mask Douglas Gilbert
2017-12-23 17:48 ` [PATCH v3 3/5] scsi_debug: do_device_access add sg offset argument Douglas Gilbert
2017-12-23 17:48 ` [PATCH v3 4/5] scsi_debug: ARRAY_SIZE and FF_MEDIA_IO Douglas Gilbert
2017-12-23 17:48 ` [PATCH v3 5/5] scsi_debug: add resp_write_scat function Douglas Gilbert
2018-01-09 3:20 ` Martin K. Petersen [this message]
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