Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1470216

Re: [PATCH v6 0/4] SCT Write Same

Path csiph.com!news.mixmin.net!news.unit0.net!news.panservice.it!bofh.it!news.nic.it!robomod
From Tejun Heo <tj@kernel.org>
Newsgroups linux.kernel
Subject Re: [PATCH v6 0/4] SCT Write Same
Date Thu, 25 Aug 2016 17:30:01 +0200
Message-ID <sa4Ln-2LX-11@gated-at.bofh.it> (permalink)
References <s8P21-1r7-3@gated-at.bofh.it>
X-Original-To Shaun Tancheff <shaun@tancheff.com>
Dkim-Signature v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=Qkb7ucifk6YitC3OwS26rAWSRiP1t/JlUUllxfVmAVc=; b=mW5WlzjBrE73es8m4ctMTdjdTJ4H7P2BTl95CFBM1OqJ6rcugSKE/+d3NTP9AfK/Xn kmQedxdtSRRfBjLZ2Wy3xv39I5GeyPvoKGrDDAbiTHZselEaYBTiV/IGqTPDyCXL0+qS RYEnMoivDKEpMwe6YCSPgLp3kXqArjVj+h7VKENz7IMMJ4Dm6mbgxpTzpMcL+iMGuB31 OCY1na7bgIz/M1eBjCGuJ9SCoNtIrliR6FZqF5/JuKhWx5VhtlWYSvL4vQCriXUxPBhG N6UREKXBIGm/rTw0lkt/AlbIvMSXykcFUc7n1m2KnY3BKwr33LAlXYeADEeWV3OXljcU YQ7A==
X-Google-Dkim-Signature v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition:in-reply-to:user-agent; bh=Qkb7ucifk6YitC3OwS26rAWSRiP1t/JlUUllxfVmAVc=; b=P95ldQrgdtiuwos5jI+gbjAD+5UjtldjIRlKTvWO8N0qNC0NBm4LO6/ZDV17gxTSks Ur6UeEQR7NZ7PekiY1IoY0VqZaVK9Q3q/uxmhFX2Or2JfHN1YtfxTyO/4rHN0sa39+tW lQkWtrP7hvwxx1hLJpGzj2vSdzQhIQzmJahDvqo7la6Sz/Hj2bflqZhDf1eGNIguZIFz jHrUf9m0nYRNvG21juCueUZBJcf3Aj3+j7twkCZkJph5fjt80hGinuxqQB5yEYJEv8au nH8ebbuOY0J+1raMDmlxaIx+Iq9sa8wTBksgL724TDdSkF/5qXMIlwgJxhe/R7mNlIrN qc5g==
X-Gm-Message-State AEkoouup3lvzNygRj/0jDDdzwc9Wls3dzIuJLVd9VXe9kWWfVSFuRHY0opcZmWZYlV/Yiw==
X-Received by 10.37.5.200 with SMTP id 191mr7224818ybf.85.1472138893416; Thu, 25 Aug 2016 08:28:13 -0700 (PDT)
MIME-Version 1.0
Content-Type text/plain; charset=us-ascii
Content-Disposition inline
User-Agent Mutt/1.6.2 (2016-07-01)
Sender robomod@news.nic.it
List-ID <linux-kernel.vger.kernel.org>
X-Mailing-List linux-kernel@vger.kernel.org
Approved robomod@news.nic.it
Lines 24
Organization linux.* mail to news gateway
X-Original-Cc linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org, Christoph Hellwig <hch@lst.de>, Tom Yan <tom.ty89@gmail.com>, "Martin K . Petersen" <martin.petersen@oracle.com>, Damien Le Moal <damien.lemoal@hgst.com>, Hannes Reinecke <hare@suse.de>, Josh Bingaman <josh.bingaman@seagate.com>, Hannes Reinecke <hare@suse.com>
X-Original-Date Thu, 25 Aug 2016 11:28:11 -0400
X-Original-Message-ID <20160825152811.GA20479@htj.duckdns.org>
X-Original-References <20160822042321.24367-1-shaun@tancheff.com>
X-Original-Sender linux-kernel-owner@vger.kernel.org
Xref csiph.com linux.kernel:1470216

Show key headers only | View raw


Hello,

On Sun, Aug 21, 2016 at 11:23:17PM -0500, Shaun Tancheff wrote:
> At some point the method of issuing Write Same for ATA drives changed.
> Currently write same is commonly available via SCT so expose the SCT
> capabilities and use SCT Write Same when it is available.
> 
> This is useful for zoned based media that prefers to support discard
> with lbprz set, aka discard zeroes data by mapping discard operations to
> reset write pointer operations. Conventional zones that do not support
> reset write pointer can still honor the discard zeroes data by issuing
> a write same over the zone.
> 
> It may also be nice to know if various controllers that currently
> disable WRITE SAME will work with the SCT Write Same code path:
>   aacraid, arcmsr, megaraid, 3w-9xxx, 3w-sas, 3w-xxxx, gdth, hpsa, ips,
>   megaraid, pmcraid, storvsc_drv

Applied 1-4 to libata/for-4.9.

Thanks.

-- 
tejun

Back to linux.kernel | Previous | Next — Previous in thread | Find similar | Unroll thread


Thread

[PATCH v6 0/4] SCT Write Same Shaun Tancheff <shaun@tancheff.com> - 2016-08-22 06:30 +0200
  Re: [PATCH v6 0/4] SCT Write Same Hannes Reinecke <hare@suse.de> - 2016-08-22 08:40 +0200
  Re: [PATCH v6 0/4] SCT Write Same Tejun Heo <tj@kernel.org> - 2016-08-25 17:30 +0200

csiph-web