Re: [PATCH] libata: error processing + rw 6 byte fix
From: Jens Axboe <hidden>
Date: 2005-08-23 07:17:06
Also in:
linux-scsi
On Mon, Aug 22 2005, Douglas Gilbert wrote:
if (scsicmd[0] == READ_6 || scsicmd[0] == WRITE_6) {
- qc->nsect = tf->nsect = scsicmd[4];
+ if (scsicmd[4] == 0) {
+ /*
+ * For READ_6 and WRITE_6 (only)
+ * transfer_len==0 -> 256 blocks !!
+ */
+ if (lba48) {
+ tf->hob_nsect = 1;
+ qc->nsect = 256;
+ } else
+ return 1;
This isn't quite right, for 28-bit lba a 0 sector value means 256
sectors to transfer as well. So just make that:
if (lba48) {
tf->hob_nsect = 1;
qc->nsect = 256;
}
/* continue */
and it should work fine. Similarly for 48-bit lba, 0 means 16^2 sectors.
--
Jens Axboe