Date: Thu, 3 Sep 2009 12:37:18 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r196777 - head/sys/dev/ahci Message-ID: <200909031237.n83CbIgk032551@svn.freebsd.org>
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Author: mav Date: Thu Sep 3 12:37:17 2009 New Revision: 196777 URL: http://svn.freebsd.org/changeset/base/196777 Log: ATI SB600 can't handle 256 sectors transfers with FPDMA (NCQ). MFC after: 3 days Modified: head/sys/dev/ahci/ahci.c Modified: head/sys/dev/ahci/ahci.c ============================================================================== --- head/sys/dev/ahci/ahci.c Thu Sep 3 10:06:37 2009 (r196776) +++ head/sys/dev/ahci/ahci.c Thu Sep 3 12:37:17 2009 (r196777) @@ -1942,6 +1942,9 @@ ahciaction(struct cam_sim *sim, union cc cpi->protocol = PROTO_ATA; cpi->protocol_version = PROTO_VERSION_UNSPECIFIED; cpi->maxio = MAXPHYS; + /* ATI SB600 can't handle 256 sectors with FPDMA (NCQ). */ + if (pci_get_devid(device_get_parent(dev)) == 0x43801002) + cpi->maxio = min(cpi->maxio, 255 * 512); cpi->ccb_h.status = CAM_REQ_CMP; xpt_done(ccb); break;
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