drivers/scsi/ipr.h

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

File Facts

System
Linux kernel
Corpus path
drivers/scsi/ipr.h
Extension
.h
Size
50707 bytes
Lines
1930
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 ipr_res_addr {
	u8 reserved;
	u8 bus;
	u8 target;
	u8 lun;
#define IPR_GET_PHYS_LOC(res_addr) \
	(((res_addr).bus << 16) | ((res_addr).target << 8) | (res_addr).lun)
}__attribute__((packed, aligned (4)));

struct ipr_std_inq_vpids {
	u8 vendor_id[IPR_VENDOR_ID_LEN];
	u8 product_id[IPR_PROD_ID_LEN];
}__attribute__((packed));

struct ipr_vpd {
	struct ipr_std_inq_vpids vpids;
	u8 sn[IPR_SERIAL_NUM_LEN];
}__attribute__((packed));

struct ipr_ext_vpd {
	struct ipr_vpd vpd;
	__be32 wwid[2];
}__attribute__((packed));

struct ipr_ext_vpd64 {
	struct ipr_vpd vpd;
	__be32 wwid[4];
}__attribute__((packed));

struct ipr_std_inq_data {
	u8 peri_qual_dev_type;
#define IPR_STD_INQ_PERI_QUAL(peri) ((peri) >> 5)
#define IPR_STD_INQ_PERI_DEV_TYPE(peri) ((peri) & 0x1F)

	u8 removeable_medium_rsvd;
#define IPR_STD_INQ_REMOVEABLE_MEDIUM 0x80

#define IPR_IS_DASD_DEVICE(std_inq) \
((IPR_STD_INQ_PERI_DEV_TYPE((std_inq).peri_qual_dev_type) == TYPE_DISK) && \
!(((std_inq).removeable_medium_rsvd) & IPR_STD_INQ_REMOVEABLE_MEDIUM))

#define IPR_IS_SES_DEVICE(std_inq) \
(IPR_STD_INQ_PERI_DEV_TYPE((std_inq).peri_qual_dev_type) == TYPE_ENCLOSURE)

	u8 version;
	u8 aen_naca_fmt;
	u8 additional_len;
	u8 sccs_rsvd;
	u8 bq_enc_multi;
	u8 sync_cmdq_flags;

	struct ipr_std_inq_vpids vpids;

	u8 ros_rsvd_ram_rsvd[4];

	u8 serial_num[IPR_SERIAL_NUM_LEN];
}__attribute__ ((packed));

#define IPR_RES_TYPE_AF_DASD		0x00
#define IPR_RES_TYPE_GENERIC_SCSI	0x01
#define IPR_RES_TYPE_VOLUME_SET		0x02
#define IPR_RES_TYPE_REMOTE_AF_DASD	0x03
#define IPR_RES_TYPE_GENERIC_ATA	0x04
#define IPR_RES_TYPE_ARRAY		0x05
#define IPR_RES_TYPE_IOAFP		0xff

struct ipr_config_table_entry {
	u8 proto;
#define IPR_PROTO_SATA			0x02
#define IPR_PROTO_SATA_ATAPI		0x03
#define IPR_PROTO_SAS_STP		0x06
#define IPR_PROTO_SAS_STP_ATAPI		0x07
	u8 array_id;
	u8 flags;
#define IPR_IS_IOA_RESOURCE		0x80
	u8 rsvd_subtype;

#define IPR_QUEUEING_MODEL(res)	((((res)->flags) & 0x70) >> 4)
#define IPR_QUEUE_FROZEN_MODEL		0
#define IPR_QUEUE_NACA_MODEL		1

	struct ipr_res_addr res_addr;
	__be32 res_handle;
	__be32 lun_wwn[2];
	struct ipr_std_inq_data std_inq_data;
}__attribute__ ((packed, aligned (4)));

struct ipr_config_table_entry64 {
	u8 res_type;
	u8 proto;

Annotation

Implementation Notes