From owner-svn-src-stable@FreeBSD.ORG Tue Nov 23 21:20:27 2010 Return-Path: Delivered-To: svn-src-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 65FC71065679; Tue, 23 Nov 2010 21:20:27 +0000 (UTC) (envelope-from mav@FreeBSD.org) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c]) by mx1.freebsd.org (Postfix) with ESMTP id 4AE398FC1B; Tue, 23 Nov 2010 21:20:27 +0000 (UTC) Received: from svn.freebsd.org (localhost [127.0.0.1]) by svn.freebsd.org (8.14.3/8.14.3) with ESMTP id oANLKRt8044186; Tue, 23 Nov 2010 21:20:27 GMT (envelope-from mav@svn.freebsd.org) Received: (from mav@localhost) by svn.freebsd.org (8.14.3/8.14.3/Submit) id oANLKR72044184; Tue, 23 Nov 2010 21:20:27 GMT (envelope-from mav@svn.freebsd.org) Message-Id: <201011232120.oANLKR72044184@svn.freebsd.org> From: Alexander Motin Date: Tue, 23 Nov 2010 21:20:27 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org X-SVN-Group: stable-8 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cc: Subject: svn commit: r215769 - stable/8/sys/dev/ata X-BeenThere: svn-src-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: SVN commit messages for all the -stable branches of the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Nov 2010 21:20:27 -0000 Author: mav Date: Tue Nov 23 21:20:27 2010 New Revision: 215769 URL: http://svn.freebsd.org/changeset/base/215769 Log: MFC r214880: Add support for odd-sized PIO transfers, sometimes used by ATAPI. Modified: stable/8/sys/dev/ata/ata-lowlevel.c Directory Properties: stable/8/sys/ (props changed) stable/8/sys/amd64/include/xen/ (props changed) stable/8/sys/cddl/contrib/opensolaris/ (props changed) stable/8/sys/contrib/dev/acpica/ (props changed) stable/8/sys/contrib/pf/ (props changed) stable/8/sys/dev/xen/xenpci/ (props changed) Modified: stable/8/sys/dev/ata/ata-lowlevel.c ============================================================================== --- stable/8/sys/dev/ata/ata-lowlevel.c Tue Nov 23 21:09:42 2010 (r215768) +++ stable/8/sys/dev/ata/ata-lowlevel.c Tue Nov 23 21:20:27 2010 (r215769) @@ -833,12 +833,18 @@ ata_pio_read(struct ata_request *request struct ata_channel *ch = device_get_softc(request->parent); int size = min(request->transfersize, length); int resid; + uint8_t buf[2]; - if (ch->flags & ATA_USE_16BIT || (size % sizeof(int32_t))) + if (ch->flags & ATA_USE_16BIT || (size % sizeof(int32_t))) { ATA_IDX_INSW_STRM(ch, ATA_DATA, (void*)((uintptr_t)request->data+request->donecount), size / sizeof(int16_t)); - else + if (size & 1) { + ATA_IDX_INSW_STRM(ch, ATA_DATA, (void*)buf, 1); + ((uint8_t *)request->data + request->donecount + + (size & ~1))[0] = buf[0]; + } + } else ATA_IDX_INSL_STRM(ch, ATA_DATA, (void*)((uintptr_t)request->data+request->donecount), size / sizeof(int32_t)); @@ -846,7 +852,7 @@ ata_pio_read(struct ata_request *request if (request->transfersize < length) { device_printf(request->parent, "WARNING - %s read data overrun %d>%d\n", ata_cmd2str(request), length, request->transfersize); - for (resid = request->transfersize; resid < length; + for (resid = request->transfersize + (size & 1); resid < length; resid += sizeof(int16_t)) ATA_IDX_INW(ch, ATA_DATA); } @@ -858,12 +864,18 @@ ata_pio_write(struct ata_request *reques struct ata_channel *ch = device_get_softc(request->parent); int size = min(request->transfersize, length); int resid; + uint8_t buf[2]; - if (ch->flags & ATA_USE_16BIT || (size % sizeof(int32_t))) + if (ch->flags & ATA_USE_16BIT || (size % sizeof(int32_t))) { ATA_IDX_OUTSW_STRM(ch, ATA_DATA, (void*)((uintptr_t)request->data+request->donecount), size / sizeof(int16_t)); - else + if (size & 1) { + buf[0] = ((uint8_t *)request->data + request->donecount + + (size & ~1))[0]; + ATA_IDX_OUTSW_STRM(ch, ATA_DATA, (void*)buf, 1); + } + } else ATA_IDX_OUTSL_STRM(ch, ATA_DATA, (void*)((uintptr_t)request->data+request->donecount), size / sizeof(int32_t)); @@ -871,7 +883,7 @@ ata_pio_write(struct ata_request *reques if (request->transfersize < length) { device_printf(request->parent, "WARNING - %s write data underrun %d>%d\n", ata_cmd2str(request), length, request->transfersize); - for (resid = request->transfersize; resid < length; + for (resid = request->transfersize + (size & 1); resid < length; resid += sizeof(int16_t)) ATA_IDX_OUTW(ch, ATA_DATA, 0); }