From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pierre Ossman Subject: Re: [PATCH v4 6/6] Atmel MCI: Driver for Atmel on-chip MMC controllers Date: Sat, 28 Jun 2008 16:11:27 +0200 Message-ID: <20080628161127.16b6fcff@mjolnir.drzeus.cx> References: <1214486603-23655-1-git-send-email-haavard.skinnemoen@atmel.com> <1214486603-23655-2-git-send-email-haavard.skinnemoen@atmel.com> <1214486603-23655-3-git-send-email-haavard.skinnemoen@atmel.com> <1214486603-23655-4-git-send-email-haavard.skinnemoen@atmel.com> <1214486603-23655-5-git-send-email-haavard.skinnemoen@atmel.com> <1214486603-23655-6-git-send-email-haavard.skinnemoen@atmel.com> <1214486603-23655-7-git-send-email-haavard.skinnemoen@atmel.com> <20080627211014.0e80db04@siona.local> <20080627215627.5d75639c@mjolnir.drzeus.cx> <20080628144313.353bbf18@hskinnemo-gx745.norway.atmel.com> <20080628154515.0eb002f6@mjolnir.drzeus.cx> <20080628160121.10c7c1b0@hskinnemo-gx745.norway.atmel.com> Mime-Version: 1.0 Content-Type: multipart/signed; protocol="application/pgp-signature"; micalg=PGP-SHA1; boundary="=_freyr.drzeus.cx-8206-1214661683-0001-2" Return-path: In-Reply-To: <20080628160121.10c7c1b0@hskinnemo-gx745.norway.atmel.com> Sender: linux-embedded-owner@vger.kernel.org List-ID: To: Haavard Skinnemoen Cc: Dan Williams , linux-kernel@vger.kernel.org, linux-embedded@vger.kernel.org, kernel@avr32linux.org, shannon.nelson@intel.com, David Brownell This is a MIME-formatted message. If you see this text it means that your E-mail software does not support MIME-formatted messages. --=_freyr.drzeus.cx-8206-1214661683-0001-2 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Sat, 28 Jun 2008 16:01:21 +0200 Haavard Skinnemoen wrote: >=20 > bytes_xfered is 0 if any block failed. If I understand correctly, this > is good enough, but not optimal. I want to improve this later, but I > might need some more feedback from the DMA engine subsystem (e.g. > adding "actual" and "status" fields to the descriptor.) >=20 That's good enough yes. The only incorrect value is reporting more than was actually written as that would completely undermine any attempts of keeping data integrity in upper layers. Rgds --=20 -- Pierre Ossman Linux kernel, MMC maintainer http://www.kernel.org rdesktop, core developer http://www.rdesktop.org WARNING: This correspondence is being monitored by the Swedish government. Make sure your server uses encryption for SMTP traffic and consider using PGP for end-to-end encryption. --=_freyr.drzeus.cx-8206-1214661683-0001-2 Content-Type: application/pgp-signature; name="signature.asc" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (GNU/Linux) iEYEARECAAYFAkhmRpEACgkQ7b8eESbyJLgtMwCgvCZ0qYWkfCHRZ4SH8z3wyGSi OYUAn2NCYCKGqgZYtBH0cwl+ZbtXXvQB =KncN -----END PGP SIGNATURE----- --=_freyr.drzeus.cx-8206-1214661683-0001-2--