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libata: Include WWN ID in inquiry VPD emulation

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As per SAT-3 the WWN ID should be included in the VPD page 0x83
(device identification) emulation.

Signed-off-by: Hannes Reinecke <[email protected]>
Acked-by: Tejun Heo <[email protected]>
Signed-off-by: Jeff Garzik <[email protected]>
This commit is contained in:
Hannes Reinecke 2011-03-07 08:56:44 +01:00 • committed by Jeff Garzik
commit 6b3b9d73e0
2 changed files with 18 additions and 0 deletions
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11
drivers/ata/libata-scsi.c
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@ -2056,6 +2056,17 @@ static unsigned int ata_scsiop_inq_83(struct ata_scsi_args *args, u8 *rbuf)
ATA_ID_SERNO_LEN);
num += ATA_ID_SERNO_LEN;
if (ata_id_has_wwn(args->id)) {
/* SAT defined lu world wide name */
/* piv=0, assoc=lu, code_set=binary, designator=NAA */
rbuf[num + 0] = 1;
rbuf[num + 1] = 3;
rbuf[num + 3] = ATA_ID_WWN_LEN;
num += 4;
ata_id_string(args->id, (unsigned char *) rbuf + num,
ATA_ID_WWN, ATA_ID_WWN_LEN);
num += ATA_ID_WWN_LEN;
}
rbuf[3] = num - 4; /* page len (assume less than 256 bytes) */
return 0;
}