[libata] SCSI: support INQUIRY page 89h (ATA info page)
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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@ -1803,6 +1803,61 @@ unsigned int ata_scsiop_inq_83(struct ata_scsi_args *args, u8 *rbuf,
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return 0;
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}
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/**
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* ata_scsiop_inq_89 - Simulate INQUIRY VPD page 89, ATA info
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* @args: device IDENTIFY data / SCSI command of interest.
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* @rbuf: Response buffer, to which simulated SCSI cmd output is sent.
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* @buflen: Response buffer length.
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*
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* Yields SAT-specified ATA VPD page.
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*
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* LOCKING:
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* spin_lock_irqsave(host lock)
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*/
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unsigned int ata_scsiop_inq_89(struct ata_scsi_args *args, u8 *rbuf,
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unsigned int buflen)
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{
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u8 pbuf[60];
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struct ata_taskfile tf;
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unsigned int i;
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if (!buflen)
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return 0;
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memset(&pbuf, 0, sizeof(pbuf));
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memset(&tf, 0, sizeof(tf));
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pbuf[1] = 0x89; /* our page code */
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pbuf[2] = (0x238 >> 8); /* page size fixed at 238h */
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pbuf[3] = (0x238 & 0xff);
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memcpy(&pbuf[8], "ATA ", 8);
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ata_id_string(args->id, &pbuf[16], ATA_ID_PROD, 16);
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ata_id_string(args->id, &pbuf[32], ATA_ID_FW_REV, 4);
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/* we don't store the ATA device signature, so we fake it */
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tf.command = ATA_DRDY; /* really, this is Status reg */
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tf.lbal = 0x1;
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tf.nsect = 0x1;
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ata_tf_to_fis(&tf, 0, 1, &pbuf[36]); /* TODO: PMP? */
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pbuf[36] = 0x34; /* force D2H Reg FIS (34h) */
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pbuf[56] = ATA_CMD_ID_ATA;
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i = min(buflen, 60U);
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memcpy(rbuf, &pbuf[0], i);
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buflen -= i;
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if (!buflen)
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return 0;
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memcpy(&rbuf[60], &args->id[0], min(buflen, 512U));
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return 0;
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}
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/**
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* ata_scsiop_noop - Command handler that simply returns success.
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* @args: device IDENTIFY data / SCSI command of interest.
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@ -2880,14 +2935,23 @@ void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd,
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ata_scsi_invalid_field(cmd, done);
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else if ((scsicmd[1] & 1) == 0) /* is EVPD clear? */
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ata_scsi_rbuf_fill(&args, ata_scsiop_inq_std);
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else if (scsicmd[2] == 0x00)
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else switch (scsicmd[2]) {
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case 0x00:
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ata_scsi_rbuf_fill(&args, ata_scsiop_inq_00);
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else if (scsicmd[2] == 0x80)
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break;
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case 0x80:
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ata_scsi_rbuf_fill(&args, ata_scsiop_inq_80);
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else if (scsicmd[2] == 0x83)
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break;
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case 0x83:
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ata_scsi_rbuf_fill(&args, ata_scsiop_inq_83);
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else
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break;
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case 0x89:
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ata_scsi_rbuf_fill(&args, ata_scsiop_inq_89);
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break;
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default:
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ata_scsi_invalid_field(cmd, done);
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break;
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}
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break;
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case MODE_SENSE:
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