/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright 2008 Cisco Systems, Inc. All rights reserved.
*/
#ifndef _FC_FIP_H_
#define _FC_FIP_H_
#include <scsi/fc/fc_ns.h>
/*
* This version is based on:
* http://www.t11.org/ftp/t11/pub/fc/bb-5/08-543v1.pdf
* and T11 FC-BB-6 13-091v5.pdf (December 2013 VN2VN proposal)
*/
#define FIP_DEF_PRI
128 /* default selection priority */
#define FIP_DEF_FC_MAP
0 x0efc00
/* default FCoE MAP (MAC OUI) value */
#define FIP_DEF_FKA
8000 /* default FCF keep-alive/advert period (mS) */
#define FIP_VN_KA_PERIOD
90000 /* required VN_port keep-alive period (mS) */
#define FIP_FCF_FUZZ
100 /* random time added by FCF (mS) */
/*
* VN2VN proposed-standard values.
*/
#define FIP_VN_FC_MAP
0 x0efd00
/* MAC OUI for VN2VN use */
#define FIP_VN_PROBE_WAIT
100 /* interval between VN2VN probes (ms) */
#define FIP_VN_ANN_WAIT
400 /* interval between VN2VN announcements (ms) */
#define FIP_VN_RLIM_INT
10000 /* interval between probes when rate limited */
#define FIP_VN_RLIM_COUNT
10 /* number of probes before rate limiting */
#define FIP_VN_BEACON_INT
8000 /* interval between VN2VN beacons */
#define FIP_VN_BEACON_FUZZ
100 /* random time to add to beacon period (ms) */
/*
* Multicast MAC addresses. T11-adopted.
*/
#define FIP_ALL_FCOE_MACS ((__u8[
6 ]) {
1 ,
0 x10,
0 x18,
1 ,
0 ,
0 })
#define FIP_ALL_ENODE_MACS ((__u8[
6 ]) {
1 ,
0 x10,
0 x18,
1 ,
0 ,
1 })
#define FIP_ALL_FCF_MACS ((__u8[
6 ]) {
1 ,
0 x10,
0 x18,
1 ,
0 ,
2 })
#define FIP_ALL_VN2VN_MACS ((__u8[
6 ]) {
1 ,
0 x10,
0 x18,
1 ,
0 ,
4 })
#define FIP_ALL_P2P_MACS ((__u8[
6 ]) {
1 ,
0 x10,
0 x18,
1 ,
0 ,
5 })
#define FIP_VER
1 /* version for fip_header */
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 =
0 xfff8,
/* min vendor-specific opcode */
FIP_OP_VENDOR_MAX =
0 xfffe,
/* 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 =
0 x8000,
/* supports FPMA fabric-provided MACs */
FIP_FL_SPMA =
0 x4000,
/* supports SPMA server-provided MACs */
FIP_FL_FCF =
0 x0020,
/* originated from a controlling FCF */
FIP_FL_FDF =
0 x0010,
/* originated from an FDF */
FIP_FL_REC_OR_P2P =
0 x0008,
/* configured addr or point-to-point */
FIP_FL_AVAIL =
0 x0004,
/* available for FLOGI/ELP */
FIP_FL_SOL =
0 x0002,
/* this is a solicited message */
FIP_FL_FPORT =
0 x0001,
/* sent from an F port */
};
/*
* Common descriptor header format.
*/
struct fip_desc {
__u8 fip_dtype;
/* type - see below */
__u8 fip_dlen;
/* length - in 32-bit words */
};
enum fip_desc_type {
FIP_DT_PRI =
1 ,
/* priority for forwarder selection */
FIP_DT_MAC =
2 ,
/* MAC address */
FIP_DT_MAP_OUI =
3 ,
/* FC-MAP OUI */
FIP_DT_NAME =
4 ,
/* switch name or node name */
FIP_DT_FAB =
5 ,
/* fabric descriptor */
FIP_DT_FCOE_SIZE =
6 ,
/* max FCoE frame size */
FIP_DT_FLOGI =
7 ,
/* FLOGI request or response */
FIP_DT_FDISC =
8 ,
/* FDISC request or response */
FIP_DT_LOGO =
9 ,
/* LOGO request or response */
FIP_DT_ELP =
10 ,
/* ELP request or response */
FIP_DT_VN_ID =
11 ,
/* VN_Node Identifier */
FIP_DT_FKA =
12 ,
/* advertisement keep-alive period */
FIP_DT_VENDOR =
13 ,
/* vendor ID */
FIP_DT_VLAN =
14 ,
/* vlan number */
FIP_DT_FC4F =
15 ,
/* FC-4 features */
FIP_DT_LIMIT,
/* max defined desc_type + 1 */
FIP_DT_NON_CRITICAL =
128 ,
/* First non-critical descriptor */
FIP_DT_CLR_VLINKS =
128 ,
/* Clear virtual links reason code */
FIP_DT_VENDOR_BASE =
241 ,
/* first vendor-specific desc_type */
};
/*
* FIP_DT_PRI - priority descriptor.
*/
struct fip_pri_desc {
struct fip_desc fd_desc;
__u8 fd_resvd;
__u8 fd_pri;
/* FCF priority: higher is better */
} __attribute__((packed));
/*
* FIP_DT_MAC - MAC address descriptor.
*/
struct fip_mac_desc {
struct fip_desc fd_desc;
__u8 fd_mac[ETH_ALEN];
} __attribute__((packed));
/*
* FIP_DT_MAP - descriptor.
*/
struct fip_map_desc {
struct fip_desc fd_desc;
__u8 fd_resvd[
3 ];
__u8 fd_map[
3 ];
} __attribute__((packed));
/*
* FIP_DT_NAME descriptor.
*/
struct fip_wwn_desc {
struct fip_desc fd_desc;
__u8 fd_resvd[
2 ];
__be64 fd_wwn;
/* 64-bit WWN, unaligned */
} __attribute__((packed));
/*
* FIP_DT_FAB descriptor.
*/
struct fip_fab_desc {
struct fip_desc fd_desc;
__be16 fd_vfid;
/* virtual fabric ID */
__u8 fd_resvd;
__u8 fd_map[
3 ];
/* FC-MAP value */
__be64 fd_wwn;
/* fabric name, unaligned */
} __attribute__((packed));
/*
* FIP_DT_FCOE_SIZE descriptor.
*/
struct fip_size_desc {
struct fip_desc fd_desc;
__be16 fd_size;
} __attribute__((packed));
/*
* Descriptor that encapsulates an ELS or ILS frame.
* The encapsulated frame immediately follows this header, without
* SOF, EOF, or CRC.
*/
struct fip_encaps {
struct fip_desc fd_desc;
__u8 fd_resvd[
2 ];
} __attribute__((packed));
/*
* FIP_DT_VN_ID - VN_Node Identifier descriptor.
*/
struct fip_vn_desc {
struct fip_desc fd_desc;
__u8 fd_mac[ETH_ALEN];
__u8 fd_resvd;
__u8 fd_fc_id[
3 ];
__be64 fd_wwpn;
/* port name, unaligned */
} __attribute__((packed));
/*
* FIP_DT_FKA - Advertisement keep-alive period.
*/
struct fip_fka_desc {
struct fip_desc fd_desc;
__u8 fd_resvd;
__u8 fd_flags;
/* bit0 is fka disable flag */
__be32 fd_fka_period;
/* adv./keep-alive period in mS */
} __attribute__((packed));
/*
* flags for fip_fka_desc.fd_flags
*/
enum fip_fka_flags {
FIP_FKA_ADV_D =
0 x01,
/* no need for FKA from ENode */
};
/* FIP_DT_FKA flags */
/*
* FIP_DT_VLAN descriptor
*/
struct fip_vlan_desc {
struct fip_desc fd_desc;
__be16 fd_vlan;
/* Note: highest 4 bytes are unused */
} __attribute__((packed));
/*
* FIP_DT_FC4F - FC-4 features.
*/
struct fip_fc4_feat {
struct fip_desc fd_desc;
__u8 fd_resvd[
2 ];
struct fc_ns_fts fd_fts;
struct fc_ns_ff fd_ff;
} __attribute__((packed));
/*
* FIP_DT_VENDOR descriptor.
*/
struct fip_vendor_desc {
struct fip_desc fd_desc;
__u8 fd_resvd[
2 ];
__u8 fd_vendor_id[
8 ];
} __attribute__((packed));
#endif /* _FC_FIP_H_ */
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