From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pb0-x22f.google.com ([2607:f8b0:400e:c01::22f]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1VqxI3-0000iT-V6 for linux-mtd@lists.infradead.org; Thu, 12 Dec 2013 03:50:20 +0000 Received: by mail-pb0-f47.google.com with SMTP id um1so11270761pbc.20 for ; Wed, 11 Dec 2013 19:49:57 -0800 (PST) Date: Thu, 12 Dec 2013 11:49:47 +0800 From: Huang Shijie To: Ezequiel Garcia Subject: Re: [PATCH v2 3/4] mtd: nand: support Micron READ RETRY Message-ID: <20131212034946.GB1345@gmail.com> References: <1386619753-27613-1-git-send-email-computersforpeace@gmail.com> <1386619753-27613-3-git-send-email-computersforpeace@gmail.com> <20131211135451.GB1284@gmail.com> <20131211190313.GS27149@ld-irv-0074.broadcom.com> <20131211203111.GD5461@localhost> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20131211203111.GD5461@localhost> Cc: Huang Shijie , Brian Norris , linux-mtd@lists.infradead.org, Pekon Gupta List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Wed, Dec 11, 2013 at 05:31:12PM -0300, Ezequiel Garcia wrote: > Isn't completely bloated to setup a DMA operation just to transfer a > bunch of bytes? Wouldn't that seriously hurt performance? > > Or maybe it doesn't matter because those commands are scarcely > invoked... As you said, those commands are scarcely invoked. thanks Huang Shijie