diff options
| -rw-r--r-- | drivers/ata/libata-core.c | 2 | ||||
| -rw-r--r-- | drivers/ata/libata-scsi.c | 72 | ||||
| -rw-r--r-- | include/scsi/scsi_proto.h | 1 |
3 files changed, 69 insertions, 6 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index a846c29f3248..d1b2c6b5f680 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -2661,7 +2661,7 @@ int ata_dev_configure(struct ata_device *dev) ata_dev_config_sense_reporting(dev); ata_dev_config_zac(dev); ata_dev_config_trusted(dev); - dev->cdb_len = 16; + dev->cdb_len = 32; } /* ATAPI-specific feature tests */ diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 4c300749aca5..815c6e240aea 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -3126,7 +3126,7 @@ ata_scsi_map_proto(u8 byte1) * ata_scsi_pass_thru - convert ATA pass-thru CDB to taskfile * @qc: command structure to be initialized * - * Handles either 12 or 16-byte versions of the CDB. + * Handles either 12, 16, or 32-byte versions of the CDB. * * RETURNS: * Zero on success, non-zero on failure. @@ -3138,13 +3138,19 @@ static unsigned int ata_scsi_pass_thru(struct ata_queued_cmd *qc) struct ata_device *dev = qc->dev; const u8 *cdb = scmd->cmnd; u16 fp; + u16 cdb_offset = 0; - if ((tf->protocol = ata_scsi_map_proto(cdb[1])) == ATA_PROT_UNKNOWN) { + /* 7Fh variable length cmd means a ata pass-thru(32) */ + if (cdb[0] == VARIABLE_LENGTH_CMD) + cdb_offset = 9; + + tf->protocol = ata_scsi_map_proto(cdb[1 + cdb_offset]); + if (tf->protocol == ATA_PROT_UNKNOWN) { fp = 1; goto invalid_fld; } - if (ata_is_ncq(tf->protocol) && (cdb[2] & 0x3) == 0) + if (ata_is_ncq(tf->protocol) && (cdb[2 + cdb_offset] & 0x3) == 0) tf->protocol = ATA_PROT_NCQ_NODATA; /* enable LBA */ @@ -3180,7 +3186,7 @@ static unsigned int ata_scsi_pass_thru(struct ata_queued_cmd *qc) tf->lbah = cdb[12]; tf->device = cdb[13]; tf->command = cdb[14]; - } else { + } else if (cdb[0] == ATA_12) { /* * 12-byte CDB - incapable of extended commands. */ @@ -3193,6 +3199,30 @@ static unsigned int ata_scsi_pass_thru(struct ata_queued_cmd *qc) tf->lbah = cdb[7]; tf->device = cdb[8]; tf->command = cdb[9]; + } else { + /* + * 32-byte CDB - may contain extended command fields. + * + * If that is the case, copy the upper byte register values. + */ + if (cdb[10] & 0x01) { + tf->hob_feature = cdb[20]; + tf->hob_nsect = cdb[22]; + tf->hob_lbal = cdb[16]; + tf->hob_lbam = cdb[15]; + tf->hob_lbah = cdb[14]; + tf->flags |= ATA_TFLAG_LBA48; + } else + tf->flags &= ~ATA_TFLAG_LBA48; + + tf->feature = cdb[21]; + tf->nsect = cdb[23]; + tf->lbal = cdb[19]; + tf->lbam = cdb[18]; + tf->lbah = cdb[17]; + tf->device = cdb[24]; + tf->command = cdb[25]; + tf->auxiliary = get_unaligned_be32(&cdb[28]); } /* For NCQ commands copy the tag value */ @@ -4138,6 +4168,35 @@ static unsigned int ata_scsi_security_inout_xlat(struct ata_queued_cmd *qc) } /** + * ata_scsi_var_len_cdb_xlat - SATL variable length CDB to Handler + * @qc: Command to be translated + * + * Translate a SCSI variable length CDB to specified commands. + * It checks a service action value in CDB to call corresponding handler. + * + * RETURNS: + * Zero on success, non-zero on failure + * + */ +static unsigned int ata_scsi_var_len_cdb_xlat(struct ata_queued_cmd *qc) +{ + struct scsi_cmnd *scmd = qc->scsicmd; + const u8 *cdb = scmd->cmnd; + const u16 sa = get_unaligned_be16(&cdb[8]); + + /* + * if service action represents a ata pass-thru(32) command, + * then pass it to ata_scsi_pass_thru handler. + */ + if (sa == ATA_32) + return ata_scsi_pass_thru(qc); + +unspprt_sa: + /* unsupported service action */ + return 1; +} + +/** * ata_get_xlat_func - check if SCSI to ATA translation is possible * @dev: ATA device * @cmd: SCSI command opcode to consider @@ -4177,6 +4236,9 @@ static inline ata_xlat_func_t ata_get_xlat_func(struct ata_device *dev, u8 cmd) case ATA_16: return ata_scsi_pass_thru; + case VARIABLE_LENGTH_CMD: + return ata_scsi_var_len_cdb_xlat; + case MODE_SELECT: case MODE_SELECT_10: return ata_scsi_mode_select_xlat; @@ -4461,7 +4523,7 @@ int ata_scsi_add_hosts(struct ata_host *host, struct scsi_host_template *sht) shost->max_id = 16; shost->max_lun = 1; shost->max_channel = 1; - shost->max_cmd_len = 16; + shost->max_cmd_len = 32; /* Schedule policy is determined by ->qc_defer() * callback and it needs to see every deferred qc. diff --git a/include/scsi/scsi_proto.h b/include/scsi/scsi_proto.h index ce78ec8e367d..06076b88d375 100644 --- a/include/scsi/scsi_proto.h +++ b/include/scsi/scsi_proto.h @@ -162,6 +162,7 @@ #define VERIFY_32 0x0a #define WRITE_32 0x0b #define WRITE_SAME_32 0x0d +#define ATA_32 0x1ff0 /* Values for T10/04-262r7 */ #define ATA_16 0x85 /* 16-byte pass-thru */ |
