diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/ata/libata-scsi.c | 72 |
1 files changed, 68 insertions, 4 deletions
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 7ad046b7c356..b39966299e7b 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -1804,6 +1804,61 @@ unsigned int ata_scsiop_inq_83(struct ata_scsi_args *args, u8 *rbuf, } /** + * ata_scsiop_inq_89 - Simulate INQUIRY VPD page 89, ATA info + * @args: device IDENTIFY data / SCSI command of interest. + * @rbuf: Response buffer, to which simulated SCSI cmd output is sent. + * @buflen: Response buffer length. + * + * Yields SAT-specified ATA VPD page. + * + * LOCKING: + * spin_lock_irqsave(host lock) + */ + +unsigned int ata_scsiop_inq_89(struct ata_scsi_args *args, u8 *rbuf, + unsigned int buflen) +{ + u8 pbuf[60]; + struct ata_taskfile tf; + unsigned int i; + + if (!buflen) + return 0; + + memset(&pbuf, 0, sizeof(pbuf)); + memset(&tf, 0, sizeof(tf)); + + pbuf[1] = 0x89; /* our page code */ + pbuf[2] = (0x238 >> 8); /* page size fixed at 238h */ + pbuf[3] = (0x238 & 0xff); + + memcpy(&pbuf[8], "ATA ", 8); + ata_id_string(args->id, &pbuf[16], ATA_ID_PROD, 16); + ata_id_string(args->id, &pbuf[32], ATA_ID_FW_REV, 4); + + /* we don't store the ATA device signature, so we fake it */ + + tf.command = ATA_DRDY; /* really, this is Status reg */ + tf.lbal = 0x1; + tf.nsect = 0x1; + + ata_tf_to_fis(&tf, 0, 1, &pbuf[36]); /* TODO: PMP? */ + pbuf[36] = 0x34; /* force D2H Reg FIS (34h) */ + + pbuf[56] = ATA_CMD_ID_ATA; + + i = min(buflen, 60U); + memcpy(rbuf, &pbuf[0], i); + buflen -= i; + + if (!buflen) + return 0; + + memcpy(&rbuf[60], &args->id[0], min(buflen, 512U)); + return 0; +} + +/** * ata_scsiop_noop - Command handler that simply returns success. * @args: device IDENTIFY data / SCSI command of interest. * @rbuf: Response buffer, to which simulated SCSI cmd output is sent. @@ -2880,14 +2935,23 @@ void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd, ata_scsi_invalid_field(cmd, done); else if ((scsicmd[1] & 1) == 0) /* is EVPD clear? */ ata_scsi_rbuf_fill(&args, ata_scsiop_inq_std); - else if (scsicmd[2] == 0x00) + else switch (scsicmd[2]) { + case 0x00: ata_scsi_rbuf_fill(&args, ata_scsiop_inq_00); - else if (scsicmd[2] == 0x80) + break; + case 0x80: ata_scsi_rbuf_fill(&args, ata_scsiop_inq_80); - else if (scsicmd[2] == 0x83) + break; + case 0x83: ata_scsi_rbuf_fill(&args, ata_scsiop_inq_83); - else + break; + case 0x89: + ata_scsi_rbuf_fill(&args, ata_scsiop_inq_89); + break; + default: ata_scsi_invalid_field(cmd, done); + break; + } break; case MODE_SENSE: |