1 /* fc.h: Definitions for Fibre Channel Physical and Signaling Interface.
2 *
3 * Copyright (C) 1996-1997,1999 Jakub Jelinek (jj@ultra.linux.cz)
4 *
5 * Sources:
6 * Fibre Channel Physical & Signaling Interface (FC-PH), dpANS, 1994
7 * dpANS Fibre Channel Protocol for SCSI (X3.269-199X), Rev. 012, 1995
8 */
9
10 #ifndef __FC_H
11 #define __FC_H
12
13 /* World Wide Name */
14 #define NAAID_IEEE 1
15 #define NAAID_IEEE_EXT 2
16 #define NAAID_LOCAL 3
17 #define NAAID_IP 4
18 #define NAAID_IEEE_REG 5
19 #define NAAID_IEEE_REG_EXT 6
20 #define NAAID_CCITT 12
21 #define NAAID_CCITT_GRP 14
22
23 /* This is NAAID_IEEE_EXT scheme */
24 typedef struct {
25 u32 naaid:4;
26 u32 nportid:12;
27 u32 hi:16;
28 u32 lo;
29 } fc_wwn;
30
31 /* Frame header for FC-PH frames */
32
33 /* r_ctl field */
34 #define R_CTL_DEVICE_DATA 0x00 /* FC4 Device_Data frame */
35 #define R_CTL_EXTENDED_SVC 0x20 /* Extended Link_Data frame */
36 #define R_CTL_FC4_SVC 0x30 /* FC4 Link_Data frame */
37 #define R_CTL_VIDEO 0x40 /* Video_Data frame */
38 #define R_CTL_BASIC_SVC 0x80 /* Basic Link_Data frame */
39 #define R_CTL_LINK_CTL 0xc0 /* Link_Control frame */
40 /* FC4 Device_Data frames */
41 #define R_CTL_UNCATEGORIZED 0x00
42 #define R_CTL_SOLICITED_DATA 0x01
43 #define R_CTL_UNSOL_CONTROL 0x02
44 #define R_CTL_SOLICITED_CONTROL 0x03
45 #define R_CTL_UNSOL_DATA 0x04
46 #define R_CTL_XFER_RDY 0x05
47 #define R_CTL_COMMAND 0x06
48 #define R_CTL_STATUS 0x07
49 /* Basic Link_Data frames */
50 #define R_CTL_LS_NOP 0x80
51 #define R_CTL_LS_ABTS 0x81
52 #define R_CTL_LS_RMC 0x82
53 #define R_CTL_LS_BA_ACC 0x84
54 #define R_CTL_LS_BA_RJT 0x85
55 /* Extended Link_Data frames */
56 #define R_CTL_ELS_REQ 0x22
57 #define R_CTL_ELS_RSP 0x23
58 /* Link_Control frames */
59 #define R_CTL_ACK_1 0xc0
60 #define R_CTL_ACK_N 0xc1
61 #define R_CTL_P_RJT 0xc2
62 #define R_CTL_F_RJT 0xc3
63 #define R_CTL_P_BSY 0xc4
64 #define R_CTL_F_BSY_DF 0xc5
65 #define R_CTL_F_BSY_LC 0xc6
66 #define R_CTL_LCR 0xc7
67
68 /* type field */
69 #define TYPE_BASIC_LS 0x00
70 #define TYPE_EXTENDED_LS 0x01
71 #define TYPE_IS8802 0x04
72 #define TYPE_IS8802_SNAP 0x05
73 #define TYPE_SCSI_FCP 0x08
74 #define TYPE_SCSI_GPP 0x09
75 #define TYPE_HIPP_FP 0x0a
76 #define TYPE_IPI3_MASTER 0x11
77 #define TYPE_IPI3_SLAVE 0x12
78 #define TYPE_IPI3_PEER 0x13
79
80 /* f_ctl field */
81 #define F_CTL_FILL_BYTES 0x000003
82 #define F_CTL_XCHG_REASSEMBLE 0x000004
83 #define F_CTL_RO_PRESENT 0x000008
84 #define F_CTL_ABORT_SEQ 0x000030
85 #define F_CTL_CONTINUE_SEQ 0x0000c0
86 #define F_CTL_INVALIDATE_XID 0x004000
87 #define F_CTL_XID_REASSIGNED 0x008000
88 #define F_CTL_SEQ_INITIATIVE 0x010000
89 #define F_CTL_CHAINED_SEQ 0x020000
90 #define F_CTL_END_CONNECT 0x040000
91 #define F_CTL_END_SEQ 0x080000
92 #define F_CTL_LAST_SEQ 0x100000
93 #define F_CTL_FIRST_SEQ 0x200000
94 #define F_CTL_SEQ_CONTEXT 0x400000
95 #define F_CTL_XCHG_CONTEXT 0x800000
96
97 typedef struct {
98 u32 r_ctl:8, did:24;
99 u32 xxx1:8, sid:24;
100 u32 type:8, f_ctl:24;
101 u32 seq_id:8, df_ctl:8, seq_cnt:16;
102 u16 ox_id, rx_id;
103 u32 param;
104 } fc_hdr;
105 /* The following are ugly macros to make setup of this structure faster */
106 #define FILL_FCHDR_RCTL_DID(fch, r_ctl, did) *(u32 *)(fch) = ((r_ctl) << 24) | (did);
107 #define FILL_FCHDR_SID(fch, sid) *((u32 *)(fch)+1) = (sid);
108 #define FILL_FCHDR_TYPE_FCTL(fch, type, f_ctl) *((u32 *)(fch)+2) = ((type) << 24) | (f_ctl);
109 #define FILL_FCHDR_SEQ_DF_SEQ(fch, seq_id, df_ctl, seq_cnt) *((u32 *)(fch)+3) = ((seq_id) << 24) | ((df_ctl) << 16) | (seq_cnt);
110 #define FILL_FCHDR_OXRX(fch, ox_id, rx_id) *((u32 *)(fch)+4) = ((ox_id) << 16) | (rx_id);
111
112 /* Well known addresses */
113 #define FS_GENERAL_MULTICAST 0xfffff7
114 #define FS_WELL_KNOWN_MULTICAST 0xfffff8
115 #define FS_HUNT_GROUP 0xfffff9
116 #define FS_MANAGEMENT_SERVER 0xfffffa
117 #define FS_TIME_SERVER 0xfffffb
118 #define FS_NAME_SERVER 0xfffffc
119 #define FS_FABRIC_CONTROLLER 0xfffffd
120 #define FS_FABRIC_F_PORT 0xfffffe
121 #define FS_BROADCAST 0xffffff
122
123 /* Reject frames */
124 /* The param field should be cast to this structure */
125 typedef struct {
126 u8 action;
127 u8 reason;
128 u8 xxx;
129 u8 vendor_unique;
130 } rjt_param;
131
132 /* Reject action codes */
133 #define RJT_RETRY 0x01
134 #define RJT_NONRETRY 0x02
135
136 /* Reject reason codes */
137 #define RJT_INVALID_DID 0x01
138 #define RJT_INVALID_SID 0x02
139 #define RJT_NPORT_NOT_AVAIL_TEMP 0x03
140 #define RJT_NPORT_NOT_AVAIL_PERM 0x04
141 #define RJT_CLASS_NOT_SUPPORTED 0x05
142 #define RJT_DELIMITER_ERROR 0x06
143 #define RJT_TYPE_NOT_SUPPORTED 0x07
144 #define RJT_INVALID_LINK_CONTROL 0x08
145 #define RJT_INVALID_R_CTL 0x09
146 #define RJT_INVALID_F_CTL 0x0a
147 #define RJT_INVALID_OX_ID 0x0b
148 #define RJT_INVALID_RX_ID 0x0c
149 #define RJT_INVALID_SEQ_ID 0x0d
150 #define RJT_INVALID_DF_CTL 0x0e
151 #define RJT_INVALID_SEQ_CNT 0x0f
152 #define RJT_INVALID_PARAMETER 0x10
153 #define RJT_EXCHANGE_ERROR 0x11
154 #define RJT_PROTOCOL_ERROR 0x12
155 #define RJT_INCORRECT_LENGTH 0x13
156 #define RJT_UNEXPECTED_ACK 0x14
157 #define RJT_UNEXPECTED_LINK_RESP 0x15
158 #define RJT_LOGIN_REQUIRED 0x16
159 #define RJT_EXCESSIVE_SEQUENCES 0x17
160 #define RJT_CANT_ESTABLISH_EXCHANGE 0x18
161 #define RJT_SECURITY_NOT_SUPPORTED 0x19
162 #define RJT_FABRIC_NA 0x1a
163 #define RJT_VENDOR_UNIQUE 0xff
164
165
166 #define SP_F_PORT_LOGIN 0x10
167
168 /* Extended SVC commands */
169 #define LS_RJT 0x01000000
170 #define LS_ACC 0x02000000
171 #define LS_PRLI_ACC 0x02100014
172 #define LS_PLOGI 0x03000000
173 #define LS_FLOGI 0x04000000
174 #define LS_LOGO 0x05000000
175 #define LS_ABTX 0x06000000
176 #define LS_RCS 0x07000000
177 #define LS_RES 0x08000000
178 #define LS_RSS 0x09000000
179 #define LS_RSI 0x0a000000
180 #define LS_ESTS 0x0b000000
181 #define LS_ESTC 0x0c000000
182 #define LS_ADVC 0x0d000000
183 #define LS_RTV 0x0e000000
184 #define LS_RLS 0x0f000000
185 #define LS_ECHO 0x10000000
186 #define LS_TEST 0x11000000
187 #define LS_RRQ 0x12000000
188 #define LS_IDENT 0x20000000
189 #define LS_PRLI 0x20100014
190 #define LS_DISPLAY 0x21000000
191 #define LS_PRLO 0x21100014
192 #define LS_PDISC 0x50000000
193 #define LS_ADISC 0x52000000
194
195 typedef struct {
196 u8 fcph_hi, fcph_lo;
197 u16 buf2buf_credit;
198 u8 common_features;
199 u8 xxx1;
200 u16 buf2buf_size;
201 u8 xxx2;
202 u8 total_concurrent;
203 u16 off_by_info;
204 u32 e_d_tov;
205 } common_svc_parm;
206
207 typedef struct {
208 u16 serv_opts;
209 u16 initiator_ctl;
210 u16 rcpt_ctl;
211 u16 recv_size;
212 u8 xxx1;
213 u8 concurrent_seqs;
214 u16 end2end_credit;
215 u16 open_seqs_per_xchg;
216 u16 xxx2;
217 } svc_parm;
218
219 /* Login */
220 typedef struct {
221 u32 code;
222 common_svc_parm common;
223 fc_wwn nport_wwn;
224 fc_wwn node_wwn;
225 svc_parm class1;
226 svc_parm class2;
227 svc_parm class3;
228 } logi;
229
230 #endif /* !(__FC_H) */
231
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