Jens Axboe wrote:
On Wed, Mar 15 2006, Mark Lord wrote:
..
ATA cmd=0x35 is ATA_CMD_WRITE_EXT, and 0x25 (lower down in the logs)
is ATA_CMD_READ_EXT.
Those are the bog-standard (and slow!) PIO R/W commands,
which generate one interrupt per 512-bytes transferred.
Eh no they are not, 0x35 is WRITEDMA_EXT and 0x25 is READMA_EXT.
We're both correct, in that 0x35 is ATA_CMD_WRITE_EXT as I said.
But the naming had me fooled -- they really are DMA commands,
even if the linux/ata.h names are incomplete.
Cheers
-
: 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
