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From: Alexander Motin <mav@FreeBSD.org>
To: Perforce Change Reviews <perforce@freebsd.org>
Cc: 
Subject: PERFORCE change 167142 for review
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http://perforce.freebsd.org/chv.cgi?CH=167142

Change 167142 by mav@mav_mavbook on 2009/08/09 21:40:48

	Mark DMA commands with special flag.

Affected files ...

.. //depot/projects/scottl-camlock/src/sys/cam/ata/ata_all.c#14 edit
.. //depot/projects/scottl-camlock/src/sys/cam/ata/ata_all.h#14 edit

Differences ...

==== //depot/projects/scottl-camlock/src/sys/cam/ata/ata_all.c#14 (text+ko) ====

@@ -96,6 +96,11 @@
 {
 	bzero(&ataio->cmd, sizeof(ataio->cmd));
 	ataio->cmd.flags = 0;
+	if (cmd == ATA_READ_DMA ||
+	    cmd == ATA_READ_DMA_QUEUED ||
+	    cmd == ATA_WRITE_DMA ||
+	    cmd == ATA_WRITE_DMA_QUEUED)
+		ataio->cmd.flags |= CAM_ATAIO_DMA;
 	ataio->cmd.command = cmd;
 	ataio->cmd.features = features;
 	ataio->cmd.lba_low = lba;
@@ -111,6 +116,11 @@
 {
 	bzero(&ataio->cmd, sizeof(ataio->cmd));
 	ataio->cmd.flags = CAM_ATAIO_48BIT;
+	if (cmd == ATA_READ_DMA48 ||
+	    cmd == ATA_READ_DMA_QUEUED48 ||
+	    cmd == ATA_WRITE_DMA48 ||
+	    cmd == ATA_WRITE_DMA_QUEUED48)
+		ataio->cmd.flags |= CAM_ATAIO_DMA;
 	ataio->cmd.command = cmd;
 	ataio->cmd.features = features;
 	ataio->cmd.lba_low = lba;

==== //depot/projects/scottl-camlock/src/sys/cam/ata/ata_all.h#14 (text+ko) ====

@@ -41,6 +41,7 @@
 #define		CAM_ATAIO_FPDMA		0x02	/* FPDMA command */
 #define		CAM_ATAIO_CONTROL	0x04	/* Control, not a command */
 #define		CAM_ATAIO_NEEDRESULT	0x08	/* Request requires result. */
+#define		CAM_ATAIO_DMA		0x10	/* DMA command */
 
 	u_int8_t	command;
 	u_int8_t	features;