drivers/scsi/isci/sas.h

Source file repositories/reference/linux-study-clean/drivers/scsi/isci/sas.h

File Facts

System
Linux kernel
Corpus path
drivers/scsi/isci/sas.h
Extension
.h
Size
6451 bytes
Lines
218
Domain
Driver Families
Bucket
drivers/scsi
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

struct ssp_cmd_iu {
	u8 LUN[8];
	u8 add_cdb_len:6;
	u8 _r_a:2;
	u8 _r_b;
	u8 en_fburst:1;
	u8 task_prio:4;
	u8 task_attr:3;
	u8 _r_c;

	u8 cdb[16];
}  __packed;

/*
 * contents of the SSP TASK INFORMATION UNIT.
 * For specific information on each of these individual fields please
 * reference the SAS specification SSP transport layer section.
 * XXX: This needs to go into <scsi/sas.h>
 */
struct ssp_task_iu {
	u8 LUN[8];
	u8 _r_a;
	u8 task_func;
	u8 _r_b[4];
	u16 task_tag;
	u8 _r_c[12];
}  __packed;


/*
 * struct smp_req_phy_id - This structure defines the contents of
 *    an SMP Request that is comprised of the struct smp_request_header and a
 *    phy identifier.
 *    Examples: SMP_REQUEST_DISCOVER, SMP_REQUEST_REPORT_PHY_SATA.
 *
 * For specific information on each of these individual fields please reference
 * the SAS specification.
 */
struct smp_req_phy_id {
	u8 _r_a[4];		/* bytes 4-7 */

	u8 ign_zone_grp:1;	/* byte 8 */
	u8 _r_b:7;

	u8 phy_id;		/* byte 9 */
	u8 _r_c;		/* byte 10 */
	u8 _r_d;		/* byte 11 */
}  __packed;

/*
 * struct smp_req_config_route_info - This structure defines the
 *    contents of an SMP Configure Route Information request.
 *
 * For specific information on each of these individual fields please reference
 * the SAS specification.
 */
struct smp_req_conf_rtinfo {
	u16 exp_change_cnt;		/* bytes 4-5 */
	u8 exp_rt_idx_hi;		/* byte 6 */
	u8 exp_rt_idx;			/* byte 7 */

	u8 _r_a;			/* byte 8 */
	u8 phy_id;			/* byte 9 */
	u16 _r_b;			/* bytes 10-11 */

	u8 _r_c:7;			/* byte 12 */
	u8 dis_rt_entry:1;
	u8 _r_d[3];			/* bytes 13-15 */

	u8 rt_sas_addr[8];		/* bytes 16-23 */
	u8 _r_e[16];			/* bytes 24-39 */
}  __packed;

/*
 * struct smp_req_phycntl - This structure defines the contents of an
 *    SMP Phy Controller request.
 *
 * For specific information on each of these individual fields please reference
 * the SAS specification.
 */
struct smp_req_phycntl {
	u16 exp_change_cnt;		/* byte 4-5 */

	u8 _r_a[3];			/* bytes 6-8 */

	u8 phy_id;			/* byte 9 */
	u8 phy_op;			/* byte 10 */

	u8 upd_pathway:1;		/* byte 11 */
	u8 _r_b:7;

Annotation

Implementation Notes