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Added the ability to send ATA identify and Data Set Management (DSM) TRIM

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commands to an ATA device attached via a SCSI control.

sys/cam/scsi/scsi_all.c:
        - Added scsi_ata_identify, scsi_ata_trim
          Which use ATA Pass-Through to send commands to the attached disk.

sys/cam/scsi/scsi_all.h:
        - Added defines for all missing ATA Pass-Through commands values.

        - Added scsi_ata_identify, scsi_ata_trim methods used in ATA TRIM
          support.

        - Added scsi_vpd_logical_block_prov structure used when querying for
          the supported sizes UNMAP commands.

        - Added scsi_vpd_block_limits structure used when querying for the
          supported sizes of the UNMAP command.

Reviewed by:	mav
Approved by:	pjd (mentor)
MFC after:	2 weeks
This commit is contained in:
smh 2013-04-26 15:53:22 +00:00
parent f3c66bac10
commit 7cdb7369d5
2 changed files with 118 additions and 0 deletions
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51
sys/cam/scsi/scsi_all.c
View File

@ -5852,6 +5852,57 @@ scsi_write_same(struct ccb_scsiio *csio, u_int32_t retries,
timeout);
}
void
scsi_ata_identify(struct ccb_scsiio *csio, u_int32_t retries,
void (*cbfcnp)(struct cam_periph *, union ccb *),
u_int8_t tag_action, u_int8_t *data_ptr,
u_int16_t dxfer_len, u_int8_t sense_len,
u_int32_t timeout)
{
scsi_ata_pass_16(csio,
retries,
cbfcnp,
/*flags*/CAM_DIR_IN,
tag_action,
/*protocol*/AP_PROTO_PIO_IN,
/*ata_flags*/AP_FLAG_TDIR_FROM_DEV|
AP_FLAG_BYT_BLOK_BYTES|AP_FLAG_TLEN_SECT_CNT,
/*features*/0,
/*sector_count*/dxfer_len,
/*lba*/0,
/*command*/ATA_ATA_IDENTIFY,
/*control*/0,
data_ptr,
dxfer_len,
sense_len,
timeout);
}
void
scsi_ata_trim(struct ccb_scsiio *csio, u_int32_t retries,
void (*cbfcnp)(struct cam_periph *, union ccb *),
u_int8_t tag_action, u_int16_t block_count,
u_int8_t *data_ptr, u_int16_t dxfer_len, u_int8_t sense_len,
u_int32_t timeout)
{
scsi_ata_pass_16(csio,
retries,
cbfcnp,
/*flags*/CAM_DIR_OUT,
tag_action,
/*protocol*/AP_EXTEND|AP_PROTO_DMA,
/*ata_flags*/AP_FLAG_TLEN_SECT_CNT|AP_FLAG_BYT_BLOK_BLOCKS,
/*features*/ATA_DSM_TRIM,
/*sector_count*/block_count,
/*lba*/0,
/*command*/ATA_DATA_SET_MANAGEMENT,
/*control*/0,
data_ptr,
dxfer_len,
sense_len,
timeout);
}
void
scsi_ata_pass_16(struct ccb_scsiio *csio, u_int32_t retries,
void (*cbfcnp)(struct cam_periph *, union ccb *),

67
sys/cam/scsi/scsi_all.h
View File

@ -1429,6 +1429,61 @@ struct scsi_diag_page {
uint8_t params[0];
};
/*
* Logical Block Provisioning VPD Page based on
* T10/1799-D Revision 31
*/
struct scsi_vpd_logical_block_prov
{
u_int8_t device;
u_int8_t page_code;
#define SVPD_LBP 0xB2
u_int8_t page_length[2];
#define SVPD_LBP_PL_BASIC 0x04
u_int8_t threshold_exponent;
u_int8_t flags;
#define SVPD_LBP_UNMAP 0x80
#define SVPD_LBP_WS16 0x40
#define SVPD_LBP_WS10 0x20
#define SVPD_LBP_RZ 0x04
#define SVPD_LBP_ANC_SUP 0x02
#define SVPD_LBP_DP 0x01
u_int8_t prov_type;
#define SVPD_LBP_RESOURCE 0x01
#define SVPD_LBP_THIN 0x02
u_int8_t reserved;
/*
* Provisioning Group Descriptor can be here if SVPD_LBP_DP is set
* Its size can be determined from page_length - 4
*/
};
/*
* Block Limits VDP Page based on
* T10/1799-D Revision 31
*/
struct scsi_vpd_block_limits
{
u_int8_t device;
u_int8_t page_code;
#define SVPD_BLOCK_LIMITS 0xB0
u_int8_t page_length[2];
#define SVPD_BL_PL_BASIC 0x10
#define SVPD_BL_PL_TP 0x3C
u_int8_t reserved1;
u_int8_t max_cmp_write_len;
u_int8_t opt_txfer_len_grain[2];
u_int8_t max_txfer_len[4];
u_int8_t opt_txfer_len[4];
u_int8_t max_prefetch[4];
u_int8_t max_unmap_lba_cnt[4];
u_int8_t max_unmap_blk_cnt[4];
u_int8_t opt_unmap_grain[4];
u_int8_t unmap_grain_align[4];
u_int8_t max_write_same_length[8];
u_int8_t reserved2[20];
};
struct scsi_read_capacity
{
u_int8_t opcode;
@ -2396,6 +2451,18 @@ void scsi_write_same(struct ccb_scsiio *csio, u_int32_t retries,
u_int32_t dxfer_len, u_int8_t sense_len,
u_int32_t timeout);
void scsi_ata_identify(struct ccb_scsiio *csio, u_int32_t retries,
void (*cbfcnp)(struct cam_periph *, union ccb *),
u_int8_t tag_action, u_int8_t *data_ptr,
u_int16_t dxfer_len, u_int8_t sense_len,
u_int32_t timeout);
void scsi_ata_trim(struct ccb_scsiio *csio, u_int32_t retries,
void (*cbfcnp)(struct cam_periph *, union ccb *),
u_int8_t tag_action, u_int16_t block_count,
u_int8_t *data_ptr, u_int16_t dxfer_len,
u_int8_t sense_len, u_int32_t timeout);
void scsi_ata_pass_16(struct ccb_scsiio *csio, u_int32_t retries,
void (*cbfcnp)(struct cam_periph *, union ccb *),
u_int32_t flags, u_int8_t tag_action,