From: Albert Lee <albertcc@tw.ibm.com>
To: Jeff Garzik <jeff@garzik.org>
Cc: Linux IDE <linux-ide@vger.kernel.org>, Doug Maxey <dwm@enoyolf.org>
Subject: [PATCH 3/6] libata: map UDMA protocols
Date: Thu, 07 Jun 2007 15:50:44 +0800 [thread overview]
Message-ID: <4667B8D4.2010505@tw.ibm.com> (raw)
In-Reply-To: <4667B767.5060601@tw.ibm.com>
Patch 3/6:
Map the ATA passthru UDMA protocols to ATA_PROT_DMA.
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
---
Don't know why SAT distinguishs "UDMA Data In" and "UDMA Data Out" from "DMA".
These UDMA protocols only matter for on-the-wire-protocol and are mostly transparent
to the software. Anyway, map both of UDMA protocols to "ATA_PROT_DMA" here.
diff -Nrup 02_pio_multi/drivers/ata/libata-scsi.c 03_udma_supp/drivers/ata/libata-scsi.c
--- 02_pio_multi/drivers/ata/libata-scsi.c 2007-06-07 11:38:53.000000000 +0800
+++ 03_udma_supp/drivers/ata/libata-scsi.c 2007-06-07 11:41:30.000000000 +0800
@@ -2506,6 +2506,8 @@ ata_scsi_map_proto(u8 byte1)
return ATA_PROT_NODATA;
case 6: /* DMA */
+ case 10: /* UDMA Data-in */
+ case 11: /* UDMA Data-Out */
return ATA_PROT_DMA;
case 4: /* PIO Data-in */
@@ -2517,8 +2519,6 @@ ata_scsi_map_proto(u8 byte1)
case 8: /* Device Diagnostic */
case 9: /* Device Reset */
case 7: /* DMA Queued */
- case 10: /* UDMA Data-in */
- case 11: /* UDMA Data-Out */
case 12: /* FPDMA */
case 15: /* Return Response Info */
default: /* Reserved */
next prev parent reply other threads:[~2007-06-07 7:50 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-07 7:44 [PATCH 0/6] libata: ATA passthru fixes Albert Lee
2007-06-07 7:47 ` [PATCH 1/6] libata: update protocol numbers Albert Lee
2007-06-10 2:46 ` Jeff Garzik
2007-06-10 3:12 ` Jeff Garzik
2007-06-10 22:31 ` Mark Lord
2007-06-15 14:45 ` Jeff Garzik
2007-06-07 7:49 ` [PATCH 2/6] libata: support PIO multi commands Albert Lee
2007-06-07 7:50 ` Albert Lee [this message]
2007-06-07 7:52 ` [PATCH 4/6] libata: always enforce correct DEV bit Albert Lee
2007-06-07 7:59 ` [PATCH 5/6] libata: support ATAPI devices Albert Lee
2007-06-07 8:01 ` [PATCH 6/6] libata: update cached device paramters Albert Lee
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