Carl-Daniel Hailfinger wrote:
On my Asus M2A-VM (SB600) board, the SATA disks use multi-count
transfers only with some BIOS variants.
Dumping the relevant config words helps debugging a lot.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@xxxxxxx>
--- a/drivers/ata/libata-core.c 2009-05-06 14:24:32.000000000 +0200
+++ b/drivers/ata/libata-core.c 2009-05-06 15:27:06.000000000 +0200
@@ -2390,11 +2390,11 @@
/* print device capabilities */
if (ata_msg_probe(ap))
ata_dev_printk(dev, KERN_DEBUG,
- "%s: cfg 49:%04x 82:%04x 83:%04x 84:%04x "
- "85:%04x 86:%04x 87:%04x 88:%04x\n",
+ "%s: cfg 47:%04x 49:%04x 59:%04x 82:%04x 83:%04x"
+ " 84:%04x 85:%04x 86:%04x 87:%04x 88:%04x\n",
__func__,
- id[49], id[82], id[83], id[84],
- id[85], id[86], id[87], id[88]);
+ id[47], id[49], id[59], id[82], id[83],
+ id[84], id[85], id[86], id[87], id[88]);
/* initialize to-be-configured parameters */
dev->flags &= ~ATA_DFLAG_CFG_MASK;
--
To unsubscribe from this list: send the line "unsubscribe linux-ide" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Keep in mind that multi-count transfers are only meaningful for PIO
read/write commands (it controls the number of sectors transferred for
each DRQ assertion), which would only be used if the device didn't
support DMA - unlikely for SATA..
--
To unsubscribe from this list: send the line "unsubscribe linux-ide" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
