Date: Thu, 3 Sep 2009 12:34:07 GMT From: Alexander Motin <mav@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 168100 for review Message-ID: <200909031234.n83CY7Nl058637@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=168100 Change 168100 by mav@mav_mavbook on 2009/09/03 12:34:06 ATI SB600 can't handle 256 sectors transfers with FPDMA (NCQ). Affected files ... .. //depot/projects/scottl-camlock/src/sys/dev/ahci/ahci.c#59 edit Differences ... ==== //depot/projects/scottl-camlock/src/sys/dev/ahci/ahci.c#59 (text+ko) ==== @@ -1942,6 +1942,9 @@ 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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