cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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fc_fip.h (7640B)


      1/* SPDX-License-Identifier: GPL-2.0 */
      2/*
      3 * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
      4 */
      5#ifndef _FC_FIP_H_
      6#define _FC_FIP_H_
      7
      8#include <scsi/fc/fc_ns.h>
      9
     10/*
     11 * This version is based on:
     12 * http://www.t11.org/ftp/t11/pub/fc/bb-5/08-543v1.pdf
     13 * and T11 FC-BB-6 13-091v5.pdf (December 2013 VN2VN proposal)
     14 */
     15
     16#define FIP_DEF_PRI	128	/* default selection priority */
     17#define FIP_DEF_FC_MAP	0x0efc00 /* default FCoE MAP (MAC OUI) value */
     18#define FIP_DEF_FKA	8000	/* default FCF keep-alive/advert period (mS) */
     19#define FIP_VN_KA_PERIOD 90000	/* required VN_port keep-alive period (mS) */
     20#define FIP_FCF_FUZZ	100	/* random time added by FCF (mS) */
     21
     22/*
     23 * VN2VN proposed-standard values.
     24 */
     25#define FIP_VN_FC_MAP	0x0efd00 /* MAC OUI for VN2VN use */
     26#define FIP_VN_PROBE_WAIT 100	/* interval between VN2VN probes (ms) */
     27#define FIP_VN_ANN_WAIT 400	/* interval between VN2VN announcements (ms) */
     28#define FIP_VN_RLIM_INT 10000	/* interval between probes when rate limited */
     29#define FIP_VN_RLIM_COUNT 10	/* number of probes before rate limiting */
     30#define FIP_VN_BEACON_INT 8000	/* interval between VN2VN beacons */
     31#define FIP_VN_BEACON_FUZZ 100	/* random time to add to beacon period (ms) */
     32
     33/*
     34 * Multicast MAC addresses.  T11-adopted.
     35 */
     36#define FIP_ALL_FCOE_MACS	((__u8[6]) { 1, 0x10, 0x18, 1, 0, 0 })
     37#define FIP_ALL_ENODE_MACS	((__u8[6]) { 1, 0x10, 0x18, 1, 0, 1 })
     38#define FIP_ALL_FCF_MACS	((__u8[6]) { 1, 0x10, 0x18, 1, 0, 2 })
     39#define FIP_ALL_VN2VN_MACS	((__u8[6]) { 1, 0x10, 0x18, 1, 0, 4 })
     40#define FIP_ALL_P2P_MACS	((__u8[6]) { 1, 0x10, 0x18, 1, 0, 5 })
     41
     42#define FIP_VER		1		/* version for fip_header */
     43
     44struct fip_header {
     45	__u8	fip_ver;		/* upper 4 bits are the version */
     46	__u8	fip_resv1;		/* reserved */
     47	__be16	fip_op;			/* operation code */
     48	__u8	fip_resv2;		/* reserved */
     49	__u8	fip_subcode;		/* lower 4 bits are sub-code */
     50	__be16	fip_dl_len;		/* length of descriptors in words */
     51	__be16	fip_flags;		/* header flags */
     52} __attribute__((packed));
     53
     54#define FIP_VER_SHIFT	4
     55#define FIP_VER_ENCAPS(v) ((v) << FIP_VER_SHIFT)
     56#define FIP_VER_DECAPS(v) ((v) >> FIP_VER_SHIFT)
     57#define FIP_BPW		4		/* bytes per word for lengths */
     58
     59/*
     60 * fip_op.
     61 */
     62enum fip_opcode {
     63	FIP_OP_DISC =	1,		/* discovery, advertisement, etc. */
     64	FIP_OP_LS =	2,		/* Link Service request or reply */
     65	FIP_OP_CTRL =	3,		/* Keep Alive / Link Reset */
     66	FIP_OP_VLAN =	4,		/* VLAN discovery */
     67	FIP_OP_VN2VN =	5,		/* VN2VN operation */
     68	FIP_OP_VENDOR_MIN = 0xfff8,	/* min vendor-specific opcode */
     69	FIP_OP_VENDOR_MAX = 0xfffe,	/* max vendor-specific opcode */
     70};
     71
     72/*
     73 * Subcodes for FIP_OP_DISC.
     74 */
     75enum fip_disc_subcode {
     76	FIP_SC_SOL =	1,		/* solicitation */
     77	FIP_SC_ADV =	2,		/* advertisement */
     78};
     79
     80/*
     81 * Subcodes for FIP_OP_LS.
     82 */
     83enum fip_trans_subcode {
     84	FIP_SC_REQ =	1,		/* request */
     85	FIP_SC_REP =	2,		/* reply */
     86};
     87
     88/*
     89 * Subcodes for FIP_OP_RESET.
     90 */
     91enum fip_reset_subcode {
     92	FIP_SC_KEEP_ALIVE = 1,		/* keep-alive from VN_Port */
     93	FIP_SC_CLR_VLINK = 2,		/* clear virtual link from VF_Port */
     94};
     95
     96/*
     97 * Subcodes for FIP_OP_VLAN.
     98 */
     99enum fip_vlan_subcode {
    100	FIP_SC_VL_REQ =	1,		/* vlan request */
    101	FIP_SC_VL_NOTE = 2,		/* vlan notification */
    102	FIP_SC_VL_VN2VN_NOTE = 3,	/* VN2VN vlan notification */
    103};
    104
    105/*
    106 * Subcodes for FIP_OP_VN2VN.
    107 */
    108enum fip_vn2vn_subcode {
    109	FIP_SC_VN_PROBE_REQ = 1,	/* probe request */
    110	FIP_SC_VN_PROBE_REP = 2,	/* probe reply */
    111	FIP_SC_VN_CLAIM_NOTIFY = 3,	/* claim notification */
    112	FIP_SC_VN_CLAIM_REP = 4,	/* claim response */
    113	FIP_SC_VN_BEACON = 5,		/* beacon */
    114};
    115
    116/*
    117 * flags in header fip_flags.
    118 */
    119enum fip_flag {
    120	FIP_FL_FPMA =	0x8000,		/* supports FPMA fabric-provided MACs */
    121	FIP_FL_SPMA =	0x4000,		/* supports SPMA server-provided MACs */
    122	FIP_FL_FCF =	0x0020,		/* originated from a controlling FCF */
    123	FIP_FL_FDF =	0x0010,		/* originated from an FDF */
    124	FIP_FL_REC_OR_P2P = 0x0008,	/* configured addr or point-to-point */
    125	FIP_FL_AVAIL =	0x0004,		/* available for FLOGI/ELP */
    126	FIP_FL_SOL =	0x0002,		/* this is a solicited message */
    127	FIP_FL_FPORT =	0x0001,		/* sent from an F port */
    128};
    129
    130/*
    131 * Common descriptor header format.
    132 */
    133struct fip_desc {
    134	__u8	fip_dtype;		/* type - see below */
    135	__u8	fip_dlen;		/* length - in 32-bit words */
    136};
    137
    138enum fip_desc_type {
    139	FIP_DT_PRI =	1,		/* priority for forwarder selection */
    140	FIP_DT_MAC =	2,		/* MAC address */
    141	FIP_DT_MAP_OUI = 3,		/* FC-MAP OUI */
    142	FIP_DT_NAME =	4,		/* switch name or node name */
    143	FIP_DT_FAB =	5,		/* fabric descriptor */
    144	FIP_DT_FCOE_SIZE = 6,		/* max FCoE frame size */
    145	FIP_DT_FLOGI =	7,		/* FLOGI request or response */
    146	FIP_DT_FDISC =	8,		/* FDISC request or response */
    147	FIP_DT_LOGO =	9,		/* LOGO request or response */
    148	FIP_DT_ELP =	10,		/* ELP request or response */
    149	FIP_DT_VN_ID =	11,		/* VN_Node Identifier */
    150	FIP_DT_FKA =	12,		/* advertisement keep-alive period */
    151	FIP_DT_VENDOR =	13,		/* vendor ID */
    152	FIP_DT_VLAN =	14,		/* vlan number */
    153	FIP_DT_FC4F =	15,		/* FC-4 features */
    154	FIP_DT_LIMIT,			/* max defined desc_type + 1 */
    155	FIP_DT_NON_CRITICAL = 128,	/* First non-critical descriptor */
    156	FIP_DT_CLR_VLINKS = 128,	/* Clear virtual links reason code */
    157	FIP_DT_VENDOR_BASE = 241,	/* first vendor-specific desc_type */
    158};
    159
    160/*
    161 * FIP_DT_PRI - priority descriptor.
    162 */
    163struct fip_pri_desc {
    164	struct fip_desc fd_desc;
    165	__u8		fd_resvd;
    166	__u8		fd_pri;		/* FCF priority:  higher is better */
    167} __attribute__((packed));
    168
    169/*
    170 * FIP_DT_MAC - MAC address descriptor.
    171 */
    172struct fip_mac_desc {
    173	struct fip_desc fd_desc;
    174	__u8		fd_mac[ETH_ALEN];
    175} __attribute__((packed));
    176
    177/*
    178 * FIP_DT_MAP - descriptor.
    179 */
    180struct fip_map_desc {
    181	struct fip_desc fd_desc;
    182	__u8		fd_resvd[3];
    183	__u8		fd_map[3];
    184} __attribute__((packed));
    185
    186/*
    187 * FIP_DT_NAME descriptor.
    188 */
    189struct fip_wwn_desc {
    190	struct fip_desc fd_desc;
    191	__u8		fd_resvd[2];
    192	__be64		fd_wwn;		/* 64-bit WWN, unaligned */
    193} __attribute__((packed));
    194
    195/*
    196 * FIP_DT_FAB descriptor.
    197 */
    198struct fip_fab_desc {
    199	struct fip_desc fd_desc;
    200	__be16		fd_vfid;	/* virtual fabric ID */
    201	__u8		fd_resvd;
    202	__u8		fd_map[3];	/* FC-MAP value */
    203	__be64		fd_wwn;		/* fabric name, unaligned */
    204} __attribute__((packed));
    205
    206/*
    207 * FIP_DT_FCOE_SIZE descriptor.
    208 */
    209struct fip_size_desc {
    210	struct fip_desc fd_desc;
    211	__be16		fd_size;
    212} __attribute__((packed));
    213
    214/*
    215 * Descriptor that encapsulates an ELS or ILS frame.
    216 * The encapsulated frame immediately follows this header, without
    217 * SOF, EOF, or CRC.
    218 */
    219struct fip_encaps {
    220	struct fip_desc fd_desc;
    221	__u8		fd_resvd[2];
    222} __attribute__((packed));
    223
    224/*
    225 * FIP_DT_VN_ID - VN_Node Identifier descriptor.
    226 */
    227struct fip_vn_desc {
    228	struct fip_desc fd_desc;
    229	__u8		fd_mac[ETH_ALEN];
    230	__u8		fd_resvd;
    231	__u8		fd_fc_id[3];
    232	__be64		fd_wwpn;	/* port name, unaligned */
    233} __attribute__((packed));
    234
    235/*
    236 * FIP_DT_FKA - Advertisement keep-alive period.
    237 */
    238struct fip_fka_desc {
    239	struct fip_desc fd_desc;
    240	__u8		fd_resvd;
    241	__u8		fd_flags;	/* bit0 is fka disable flag */
    242	__be32		fd_fka_period;	/* adv./keep-alive period in mS */
    243} __attribute__((packed));
    244
    245/*
    246 * flags for fip_fka_desc.fd_flags
    247 */
    248enum fip_fka_flags {
    249	FIP_FKA_ADV_D =	0x01,		/* no need for FKA from ENode */
    250};
    251
    252/* FIP_DT_FKA flags */
    253
    254/*
    255 * FIP_DT_VLAN descriptor
    256 */
    257struct fip_vlan_desc {
    258	struct fip_desc fd_desc;
    259	__be16		fd_vlan; /* Note: highest 4 bytes are unused */
    260} __attribute__((packed));
    261
    262/*
    263 * FIP_DT_FC4F - FC-4 features.
    264 */
    265struct fip_fc4_feat {
    266	struct fip_desc fd_desc;
    267	__u8		fd_resvd[2];
    268	struct fc_ns_fts fd_fts;
    269	struct fc_ns_ff	fd_ff;
    270} __attribute__((packed));
    271
    272/*
    273 * FIP_DT_VENDOR descriptor.
    274 */
    275struct fip_vendor_desc {
    276	struct fip_desc fd_desc;
    277	__u8		fd_resvd[2];
    278	__u8		fd_vendor_id[8];
    279} __attribute__((packed));
    280
    281#endif /* _FC_FIP_H_ */