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Commit 11093cb1 authored by Hannes Reinecke's avatar Hannes Reinecke Committed by Tejun Heo
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libata-scsi: generate correct ATA pass-through sense 



Generate ATA pass-through sense for both fixed and descriptor
format sense.

Signed-off-by: default avatarHannes Reinecke <hare@suse.com>
Signed-off-by: default avatarTejun Heo <tj@kernel.org>
parent 3852e373

drivers/ata/libata-scsi.c

+59 −34
Original line number Diff line number Diff line
@@ -1016,21 +1016,28 @@ static void ata_gen_passthru_sense(struct ata_queued_cmd *qc) 
				   &sense_key, &asc, &ascq, verbose);

		ata_scsi_set_sense(cmd, sense_key, asc, ascq);

	} else {

		/* ATA PASS-THROUGH INFORMATION AVAILABLE */

		ata_scsi_set_sense(cmd, RECOVERED_ERROR, 0, 0x1D);

	}



		/*

	 * Sense data is current and format is descriptor.

		 * ATA PASS-THROUGH INFORMATION AVAILABLE

		 * Always in descriptor format sense.

		 */

	sb[0] = 0x72;

		scsi_build_sense_buffer(1, cmd->sense_buffer,

					RECOVERED_ERROR, 0, 0x1D);

	}



	desc[0] = 0x09;

	if ((cmd->sense_buffer[0] & 0x7f) >= 0x72) {

		u8 len;



	/* set length of additional sense data */

	sb[7] = 14;

		/* descriptor format */

		len = sb[7];

		desc = (char *)scsi_sense_desc_find(sb, len + 8, 9);

		if (!desc) {

			if (SCSI_SENSE_BUFFERSIZE < len + 14)

				return;

			sb[7] = len + 14;

			desc = sb + 8 + len;

		}

		desc[0] = 9;

		desc[1] = 12;



		/*

		 * Copy registers into sense buffer.

		 */
@@ -1054,6 +1061,24 @@ static void ata_gen_passthru_sense(struct ata_queued_cmd *qc) 
			desc[8] = tf->hob_lbam;

			desc[10] = tf->hob_lbah;

		}

	} else {

		/* Fixed sense format */

		desc[0] = tf->feature;

		desc[1] = tf->command; /* status */

		desc[2] = tf->device;

		desc[3] = tf->nsect;

		desc[0] = 0;

		if (tf->flags & ATA_TFLAG_LBA48)  {

			desc[8] |= 0x80;

			if (tf->hob_nsect)

				desc[8] |= 0x40;

			if (tf->hob_lbal || tf->hob_lbam || tf->hob_lbah)

				desc[8] |= 0x20;

		}

		desc[9] = tf->lbal;

		desc[10] = tf->lbam;

		desc[11] = tf->lbah;

	}

}



/**