include/rdma/ib_mad.h

Source file repositories/reference/linux-study-clean/include/rdma/ib_mad.h

File Facts

System
Linux kernel
Corpus path
include/rdma/ib_mad.h
Extension
.h
Size
25207 bytes
Lines
823
Domain
Repository Root And Misc
Bucket
include
Inferred role
Repository Root And Misc: implementation source
Status
source implementation candidate

Why This File Exists

Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.

Dependency Surface

Detected Declarations

Annotated Snippet

struct ib_mad_hdr {
	u8	base_version;
	u8	mgmt_class;
	u8	class_version;
	u8	method;
	__be16	status;
	__be16	class_specific;
	__be64	tid;
	__be16	attr_id;
	__be16	resv;
	__be32	attr_mod;
};

struct ib_rmpp_hdr {
	u8	rmpp_version;
	u8	rmpp_type;
	u8	rmpp_rtime_flags;
	u8	rmpp_status;
	__be32	seg_num;
	__be32	paylen_newwin;
};

typedef u64 __bitwise ib_sa_comp_mask;

#define IB_SA_COMP_MASK(n) ((__force ib_sa_comp_mask) cpu_to_be64(1ull << (n)))

/*
 * ib_sa_hdr and ib_sa_mad structures must be packed because they have
 * 64-bit fields that are only 32-bit aligned. 64-bit architectures will
 * lay them out wrong otherwise.  (And unfortunately they are sent on
 * the wire so we can't change the layout)
 */
struct ib_sa_hdr {
	__be64			sm_key;
	__be16			attr_offset;
	__be16			reserved;
	ib_sa_comp_mask		comp_mask;
} __packed;

struct ib_mad {
	struct ib_mad_hdr	mad_hdr;
	u8			data[IB_MGMT_MAD_DATA];
};

struct opa_mad {
	struct ib_mad_hdr	mad_hdr;
	u8			data[OPA_MGMT_MAD_DATA];
};

struct ib_rmpp_mad {
	struct ib_mad_hdr	mad_hdr;
	struct ib_rmpp_hdr	rmpp_hdr;
	u8			data[IB_MGMT_RMPP_DATA];
};

struct opa_rmpp_mad {
	struct ib_mad_hdr	mad_hdr;
	struct ib_rmpp_hdr	rmpp_hdr;
	u8			data[OPA_MGMT_RMPP_DATA];
};

struct ib_sa_mad {
	struct ib_mad_hdr	mad_hdr;
	struct ib_rmpp_hdr	rmpp_hdr;
	struct ib_sa_hdr	sa_hdr;
	u8			data[IB_MGMT_SA_DATA];
} __packed;

struct ib_vendor_mad {
	struct ib_mad_hdr	mad_hdr;
	struct ib_rmpp_hdr	rmpp_hdr;
	u8			reserved;
	u8			oui[3];
	u8			data[IB_MGMT_VENDOR_DATA];
};

#define IB_MGMT_CLASSPORTINFO_ATTR_ID	cpu_to_be16(0x0001)

#define IB_CLASS_PORT_INFO_RESP_TIME_MASK	0x1F
#define IB_CLASS_PORT_INFO_RESP_TIME_FIELD_SIZE 5

struct ib_class_port_info {
	u8			base_version;
	u8			class_version;
	__be16			capability_mask;
	  /* 27 bits for cap_mask2, 5 bits for resp_time */
	__be32			cap_mask2_resp_time;
	u8			redirect_gid[16];
	__be32			redirect_tcslfl;
	__be16			redirect_lid;

Annotation

Implementation Notes