include/scsi/fc/fc_fip.h

Source file repositories/reference/linux-study-clean/include/scsi/fc/fc_fip.h

File Facts

System
Linux kernel
Corpus path
include/scsi/fc/fc_fip.h
Extension
.h
Size
7640 bytes
Lines
282
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 fip_header {
	__u8	fip_ver;		/* upper 4 bits are the version */
	__u8	fip_resv1;		/* reserved */
	__be16	fip_op;			/* operation code */
	__u8	fip_resv2;		/* reserved */
	__u8	fip_subcode;		/* lower 4 bits are sub-code */
	__be16	fip_dl_len;		/* length of descriptors in words */
	__be16	fip_flags;		/* header flags */
} __attribute__((packed));

#define FIP_VER_SHIFT	4
#define FIP_VER_ENCAPS(v) ((v) << FIP_VER_SHIFT)
#define FIP_VER_DECAPS(v) ((v) >> FIP_VER_SHIFT)
#define FIP_BPW		4		/* bytes per word for lengths */

/*
 * fip_op.
 */
enum fip_opcode {
	FIP_OP_DISC =	1,		/* discovery, advertisement, etc. */
	FIP_OP_LS =	2,		/* Link Service request or reply */
	FIP_OP_CTRL =	3,		/* Keep Alive / Link Reset */
	FIP_OP_VLAN =	4,		/* VLAN discovery */
	FIP_OP_VN2VN =	5,		/* VN2VN operation */
	FIP_OP_VENDOR_MIN = 0xfff8,	/* min vendor-specific opcode */
	FIP_OP_VENDOR_MAX = 0xfffe,	/* max vendor-specific opcode */
};

/*
 * Subcodes for FIP_OP_DISC.
 */
enum fip_disc_subcode {
	FIP_SC_SOL =	1,		/* solicitation */
	FIP_SC_ADV =	2,		/* advertisement */
};

/*
 * Subcodes for FIP_OP_LS.
 */
enum fip_trans_subcode {
	FIP_SC_REQ =	1,		/* request */
	FIP_SC_REP =	2,		/* reply */
};

/*
 * Subcodes for FIP_OP_RESET.
 */
enum fip_reset_subcode {
	FIP_SC_KEEP_ALIVE = 1,		/* keep-alive from VN_Port */
	FIP_SC_CLR_VLINK = 2,		/* clear virtual link from VF_Port */
};

/*
 * Subcodes for FIP_OP_VLAN.
 */
enum fip_vlan_subcode {
	FIP_SC_VL_REQ =	1,		/* vlan request */
	FIP_SC_VL_NOTE = 2,		/* vlan notification */
	FIP_SC_VL_VN2VN_NOTE = 3,	/* VN2VN vlan notification */
};

/*
 * Subcodes for FIP_OP_VN2VN.
 */
enum fip_vn2vn_subcode {
	FIP_SC_VN_PROBE_REQ = 1,	/* probe request */
	FIP_SC_VN_PROBE_REP = 2,	/* probe reply */
	FIP_SC_VN_CLAIM_NOTIFY = 3,	/* claim notification */
	FIP_SC_VN_CLAIM_REP = 4,	/* claim response */
	FIP_SC_VN_BEACON = 5,		/* beacon */
};

/*
 * flags in header fip_flags.
 */
enum fip_flag {
	FIP_FL_FPMA =	0x8000,		/* supports FPMA fabric-provided MACs */
	FIP_FL_SPMA =	0x4000,		/* supports SPMA server-provided MACs */
	FIP_FL_FCF =	0x0020,		/* originated from a controlling FCF */
	FIP_FL_FDF =	0x0010,		/* originated from an FDF */
	FIP_FL_REC_OR_P2P = 0x0008,	/* configured addr or point-to-point */
	FIP_FL_AVAIL =	0x0004,		/* available for FLOGI/ELP */
	FIP_FL_SOL =	0x0002,		/* this is a solicited message */
	FIP_FL_FPORT =	0x0001,		/* sent from an F port */
};

/*
 * Common descriptor header format.
 */
struct fip_desc {

Annotation

Implementation Notes