Re: Follow up? LibPATA code issues / 2.6.15.4 (found the opcode=0x35)!

[Justin Piszcz]

Please verify I did the patch correctly, thanks.

On Mon, 10 Jul 2006, Alan Cox wrote:

> Ar Llu, 2006-07-10 am 09:59 -0400, ysgrifennodd Justin Piszcz:
> > > [4297741.057000] ata_gen_fixed_sense: failed ata_op=0x35
> > > [4297741.057000] ata4: translated ATA stat/err 0x51/04 to SCSI SK/ASC/ASCQ
> > > 0xb/00/00
> > > [4297741.057000] ata_gen_ata_desc_sense: failed ata_op=0x51
> > > [4297741.057000] ata4: status=0x51 { DriveReady SeekComplete Error }
> > > [4297741.057000] ata4: error=0x04 { DriveStatusError }
> > >
> > > Also got a 0xca.
>
> Thats "write" so if that is reporting as an unknown command something
> very odd indeed is happening.
diff -uprN linux-2.6.17.3/drivers/scsi/libata-scsi.c linux-2.6.17.3-diff/drivers/scsi/libata-scsi.c
--- linux-2.6.17.3/drivers/scsi/libata-scsi.c	2006-06-30 13:37:38.000000000 -0400
+++ linux-2.6.17.3-diff/drivers/scsi/libata-scsi.c	2006-07-09 16:31:45.665112000 -0400
@@ -428,10 +428,16 @@ int ata_scsi_device_suspend(struct scsi_
  *	spin_lock_irqsave(host_set lock)
  */
 void ata_to_sense_error(unsigned id, u8 drv_stat, u8 drv_err, u8 *sk, u8 *asc,
-			u8 *ascq)
+			u8 *ascq, struct ata_queued_cmd *qc)
 {
 	int i;
 
+	struct scsi_cmnd *cmd = qc->scsicmd;
+	struct ata_taskfile *tf = &qc->tf;
+	unsigned char *sb = cmd->sense_buffer;
+	unsigned char *desc = sb + 8;
+	unsigned char ata_op = tf->command;
+	
 	/* Based on the 3ware driver translation table */
 	static const unsigned char sense_table[][4] = {
 		/* BBD|ECC|ID|MAR */
@@ -520,6 +526,7 @@ void ata_to_sense_error(unsigned id, u8 
 	printk(KERN_ERR "ata%u: translated ATA stat/err 0x%02x/%02x to "
 	       "SCSI SK/ASC/ASCQ 0x%x/%02x/%02x\n", id, drv_stat, drv_err,
 	       *sk, *asc, *ascq);
+	printk(KERN_ERR "ata_gen_ata_desc_sense: failed ata_op=0x%02x\n", ata_op);
 	return;
 }
 
@@ -542,6 +549,7 @@ void ata_gen_ata_desc_sense(struct ata_q
 	struct ata_taskfile *tf = &qc->tf;
 	unsigned char *sb = cmd->sense_buffer;
 	unsigned char *desc = sb + 8;
+	unsigned char ata_op = tf->command;
 
 	memset(sb, 0, SCSI_SENSE_BUFFERSIZE);
 
@@ -558,8 +566,9 @@ void ata_gen_ata_desc_sense(struct ata_q
 	 * onto sense key, asc & ascq.
 	 */
 	if (tf->command & (ATA_BUSY | ATA_DF | ATA_ERR | ATA_DRQ)) {
+		printk(KERN_WARNING "ata_gen_ata_desc_sense: failed ata_op=0x%02x\n", ata_op);
 		ata_to_sense_error(qc->ap->id, tf->command, tf->feature,
-				   &sb[1], &sb[2], &sb[3]);
+				   &sb[1], &sb[2], &sb[3],qc);
 		sb[1] &= 0x0f;
 	}
 
@@ -617,6 +626,7 @@ void ata_gen_fixed_sense(struct ata_queu
 	struct scsi_cmnd *cmd = qc->scsicmd;
 	struct ata_taskfile *tf = &qc->tf;
 	unsigned char *sb = cmd->sense_buffer;
+	unsigned char ata_op = tf->command;
 
 	memset(sb, 0, SCSI_SENSE_BUFFERSIZE);
 
@@ -633,8 +643,9 @@ void ata_gen_fixed_sense(struct ata_queu
 	 * onto sense key, asc & ascq.
 	 */
 	if (tf->command & (ATA_BUSY | ATA_DF | ATA_ERR | ATA_DRQ)) {
+		printk(KERN_WARNING "ata_gen_fixed_sense: failed ata_op=0x%02x\n", ata_op);
 		ata_to_sense_error(qc->ap->id, tf->command, tf->feature,
-				   &sb[2], &sb[12], &sb[13]);
+				   &sb[2], &sb[12], &sb[13],qc);
 		sb[2] &= 0x0f;
 	}