[SCSI] bnx2fc: Fix MTU issue by using static MTU
[linux-2.6.git] / drivers / scsi / bfa / bfa_fcbuild.h
1 /*
2  * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
3  * All rights reserved
4  * www.brocade.com
5  *
6  * Linux driver for Brocade Fibre Channel Host Bus Adapter.
7  *
8  * This program is free software; you can redistribute it and/or modify it
9  * under the terms of the GNU General Public License (GPL) Version 2 as
10  * published by the Free Software Foundation
11  *
12  * This program is distributed in the hope that it will be useful, but
13  * WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * General Public License for more details.
16  */
17 /*
18  * fcbuild.h - FC link service frame building and parsing routines
19  */
20
21 #ifndef __FCBUILD_H__
22 #define __FCBUILD_H__
23
24 #include "bfad_drv.h"
25 #include "bfa_fc.h"
26 #include "bfa_defs_fcs.h"
27
28 /*
29  * Utility Macros/functions
30  */
31
32 #define wwn_is_equal(_wwn1, _wwn2)              \
33         (memcmp(&(_wwn1), &(_wwn2), sizeof(wwn_t)) == 0)
34
35 #define fc_roundup(_l, _s) (((_l) + ((_s) - 1)) & ~((_s) - 1))
36
37 /*
38  * Given the fc response length, this routine will return
39  * the length of the actual payload bytes following the CT header.
40  *
41  * Assumes the input response length does not include the crc, eof, etc.
42  */
43 static inline   u32
44 fc_get_ctresp_pyld_len(u32 resp_len)
45 {
46         return resp_len - sizeof(struct ct_hdr_s);
47 }
48
49 /*
50  * Convert bfa speed to rpsc speed value.
51  */
52 static inline  enum bfa_port_speed
53 fc_rpsc_operspeed_to_bfa_speed(enum fc_rpsc_op_speed speed)
54 {
55         switch (speed) {
56
57         case RPSC_OP_SPEED_1G:
58                 return BFA_PORT_SPEED_1GBPS;
59
60         case RPSC_OP_SPEED_2G:
61                 return BFA_PORT_SPEED_2GBPS;
62
63         case RPSC_OP_SPEED_4G:
64                 return BFA_PORT_SPEED_4GBPS;
65
66         case RPSC_OP_SPEED_8G:
67                 return BFA_PORT_SPEED_8GBPS;
68
69         case RPSC_OP_SPEED_10G:
70                 return BFA_PORT_SPEED_10GBPS;
71
72         default:
73                 return BFA_PORT_SPEED_UNKNOWN;
74         }
75 }
76
77 /*
78  * Convert RPSC speed to bfa speed value.
79  */
80 static inline   enum fc_rpsc_op_speed
81 fc_bfa_speed_to_rpsc_operspeed(enum bfa_port_speed op_speed)
82 {
83         switch (op_speed) {
84
85         case BFA_PORT_SPEED_1GBPS:
86                 return RPSC_OP_SPEED_1G;
87
88         case BFA_PORT_SPEED_2GBPS:
89                 return RPSC_OP_SPEED_2G;
90
91         case BFA_PORT_SPEED_4GBPS:
92                 return RPSC_OP_SPEED_4G;
93
94         case BFA_PORT_SPEED_8GBPS:
95                 return RPSC_OP_SPEED_8G;
96
97         case BFA_PORT_SPEED_10GBPS:
98                 return RPSC_OP_SPEED_10G;
99
100         default:
101                 return RPSC_OP_SPEED_NOT_EST;
102         }
103 }
104
105 enum fc_parse_status {
106         FC_PARSE_OK = 0,
107         FC_PARSE_FAILURE = 1,
108         FC_PARSE_BUSY = 2,
109         FC_PARSE_LEN_INVAL,
110         FC_PARSE_ACC_INVAL,
111         FC_PARSE_PWWN_NOT_EQUAL,
112         FC_PARSE_NWWN_NOT_EQUAL,
113         FC_PARSE_RXSZ_INVAL,
114         FC_PARSE_NOT_FCP,
115         FC_PARSE_OPAFLAG_INVAL,
116         FC_PARSE_RPAFLAG_INVAL,
117         FC_PARSE_OPA_INVAL,
118         FC_PARSE_RPA_INVAL,
119
120 };
121
122 struct fc_templates_s {
123         struct fchs_s fc_els_req;
124         struct fchs_s fc_bls_req;
125         struct fc_logi_s plogi;
126         struct fc_rrq_s rrq;
127 };
128
129 void            fcbuild_init(void);
130
131 u16        fc_flogi_build(struct fchs_s *fchs, struct fc_logi_s *flogi,
132                         u32 s_id, u16 ox_id, wwn_t port_name, wwn_t node_name,
133                                u16 pdu_size, u8 set_npiv, u8 set_auth,
134                                u16 local_bb_credits);
135
136 u16        fc_fdisc_build(struct fchs_s *buf, struct fc_logi_s *flogi, u32 s_id,
137                                u16 ox_id, wwn_t port_name, wwn_t node_name,
138                                u16 pdu_size);
139
140 u16        fc_flogi_acc_build(struct fchs_s *fchs, struct fc_logi_s *flogi,
141                                    u32 s_id, __be16 ox_id,
142                                    wwn_t port_name, wwn_t node_name,
143                                    u16 pdu_size,
144                                    u16 local_bb_credits);
145
146 u16        fc_plogi_build(struct fchs_s *fchs, void *pld, u32 d_id,
147                                u32 s_id, u16 ox_id, wwn_t port_name,
148                                wwn_t node_name, u16 pdu_size);
149
150 enum fc_parse_status fc_plogi_parse(struct fchs_s *fchs);
151
152 u16        fc_abts_build(struct fchs_s *buf, u32 d_id, u32 s_id,
153                               u16 ox_id);
154
155 enum fc_parse_status fc_abts_rsp_parse(struct fchs_s *buf, int len);
156
157 u16        fc_rrq_build(struct fchs_s *buf, struct fc_rrq_s *rrq, u32 d_id,
158                              u32 s_id, u16 ox_id, u16 rrq_oxid);
159 enum fc_parse_status fc_rrq_rsp_parse(struct fchs_s *buf, int len);
160
161 u16        fc_rspnid_build(struct fchs_s *fchs, void *pld, u32 s_id,
162                                 u16 ox_id, u8 *name);
163
164 u16        fc_rftid_build(struct fchs_s *fchs, void *pld, u32 s_id,
165                                u16 ox_id, enum bfa_lport_role role);
166
167 u16       fc_rftid_build_sol(struct fchs_s *fchs, void *pyld, u32 s_id,
168                                    u16 ox_id, u8 *fc4_bitmap,
169                                    u32 bitmap_size);
170
171 u16     fc_rffid_build(struct fchs_s *fchs, void *pyld, u32 s_id,
172                         u16 ox_id, u8 fc4_type, u8 fc4_ftrs);
173
174 u16        fc_gidpn_build(struct fchs_s *fchs, void *pyld, u32 s_id,
175                                u16 ox_id, wwn_t port_name);
176
177 u16        fc_gpnid_build(struct fchs_s *fchs, void *pld, u32 s_id,
178                                u16 ox_id, u32 port_id);
179
180 u16        fc_scr_build(struct fchs_s *fchs, struct fc_scr_s *scr,
181                         u8 set_br_reg, u32 s_id, u16 ox_id);
182
183 u16        fc_plogi_acc_build(struct fchs_s *fchs, void *pld, u32 d_id,
184                                    u32 s_id, u16 ox_id,
185                                    wwn_t port_name, wwn_t node_name,
186                                    u16 pdu_size);
187
188 u16        fc_adisc_build(struct fchs_s *fchs, struct fc_adisc_s *adisc,
189                         u32 d_id, u32 s_id, __be16 ox_id, wwn_t port_name,
190                                wwn_t node_name);
191
192 enum fc_parse_status fc_adisc_parse(struct fchs_s *fchs, void *pld,
193                         u32 host_dap, wwn_t node_name, wwn_t port_name);
194
195 enum fc_parse_status fc_adisc_rsp_parse(struct fc_adisc_s *adisc, int len,
196                                  wwn_t port_name, wwn_t node_name);
197
198 u16        fc_adisc_acc_build(struct fchs_s *fchs, struct fc_adisc_s *adisc,
199                                    u32 d_id, u32 s_id, __be16 ox_id,
200                                    wwn_t port_name, wwn_t node_name);
201 u16        fc_ls_rjt_build(struct fchs_s *fchs, struct fc_ls_rjt_s *ls_rjt,
202                                 u32 d_id, u32 s_id, __be16 ox_id,
203                                 u8 reason_code, u8 reason_code_expl);
204 u16        fc_ls_acc_build(struct fchs_s *fchs, struct fc_els_cmd_s *els_cmd,
205                                 u32 d_id, u32 s_id, __be16 ox_id);
206 u16        fc_prli_build(struct fchs_s *fchs, void *pld, u32 d_id,
207                               u32 s_id, u16 ox_id);
208
209 enum fc_parse_status fc_prli_rsp_parse(struct fc_prli_s *prli, int len);
210
211 u16        fc_prli_acc_build(struct fchs_s *fchs, void *pld, u32 d_id,
212                                   u32 s_id, __be16 ox_id,
213                                   enum bfa_lport_role role);
214
215 u16        fc_rnid_build(struct fchs_s *fchs, struct fc_rnid_cmd_s *rnid,
216                               u32 d_id, u32 s_id, u16 ox_id,
217                               u32 data_format);
218
219 u16        fc_rnid_acc_build(struct fchs_s *fchs,
220                         struct fc_rnid_acc_s *rnid_acc, u32 d_id, u32 s_id,
221                         __be16 ox_id, u32 data_format,
222                         struct fc_rnid_common_id_data_s *common_id_data,
223                         struct fc_rnid_general_topology_data_s *gen_topo_data);
224
225 u16     fc_rpsc2_build(struct fchs_s *fchs, struct fc_rpsc2_cmd_s *rps2c,
226                         u32 d_id, u32 s_id, u32 *pid_list, u16 npids);
227 u16        fc_rpsc_build(struct fchs_s *fchs, struct fc_rpsc_cmd_s *rpsc,
228                               u32 d_id, u32 s_id, u16 ox_id);
229 u16        fc_rpsc_acc_build(struct fchs_s *fchs,
230                         struct fc_rpsc_acc_s *rpsc_acc, u32 d_id, u32 s_id,
231                         __be16 ox_id, struct fc_rpsc_speed_info_s *oper_speed);
232 u16        fc_gid_ft_build(struct fchs_s *fchs, void *pld, u32 s_id,
233                                 u8 fc4_type);
234
235 u16        fc_rpnid_build(struct fchs_s *fchs, void *pyld, u32 s_id,
236                                u32 port_id, wwn_t port_name);
237
238 u16        fc_rnnid_build(struct fchs_s *fchs, void *pyld, u32 s_id,
239                                u32 port_id, wwn_t node_name);
240
241 u16        fc_rcsid_build(struct fchs_s *fchs, void *pyld, u32 s_id,
242                                u32 port_id, u32 cos);
243
244 u16        fc_rptid_build(struct fchs_s *fchs, void *pyld, u32 s_id,
245                                u32 port_id, u8 port_type);
246
247 u16        fc_ganxt_build(struct fchs_s *fchs, void *pyld, u32 s_id,
248                                u32 port_id);
249
250 u16        fc_logo_build(struct fchs_s *fchs, struct fc_logo_s *logo, u32 d_id,
251                               u32 s_id, u16 ox_id, wwn_t port_name);
252
253 u16        fc_logo_acc_build(struct fchs_s *fchs, void *pld, u32 d_id,
254                                   u32 s_id, __be16 ox_id);
255
256 u16        fc_fdmi_reqhdr_build(struct fchs_s *fchs, void *pyld, u32 s_id,
257                                      u16 cmd_code);
258 u16     fc_gmal_req_build(struct fchs_s *fchs, void *pyld, u32 s_id, wwn_t wwn);
259 u16     fc_gfn_req_build(struct fchs_s *fchs, void *pyld, u32 s_id, wwn_t wwn);
260
261 void            fc_get_fc4type_bitmask(u8 fc4_type, u8 *bit_mask);
262
263 void            fc_els_req_build(struct fchs_s *fchs, u32 d_id, u32 s_id,
264                                          __be16 ox_id);
265
266 enum fc_parse_status    fc_els_rsp_parse(struct fchs_s *fchs, int len);
267
268 enum fc_parse_status    fc_plogi_rsp_parse(struct fchs_s *fchs, int len,
269                                         wwn_t port_name);
270
271 enum fc_parse_status    fc_prli_parse(struct fc_prli_s *prli);
272
273 enum fc_parse_status    fc_pdisc_parse(struct fchs_s *fchs, wwn_t node_name,
274                                         wwn_t port_name);
275
276 u16 fc_ba_acc_build(struct fchs_s *fchs, struct fc_ba_acc_s *ba_acc, u32 d_id,
277                 u32 s_id, __be16 ox_id, u16 rx_id);
278
279 int fc_logout_params_pages(struct fchs_s *fc_frame, u8 els_code);
280
281 u16 fc_tprlo_acc_build(struct fchs_s *fchs, struct fc_tprlo_acc_s *tprlo_acc,
282                 u32 d_id, u32 s_id, __be16 ox_id, int num_pages);
283
284 u16 fc_prlo_acc_build(struct fchs_s *fchs, struct fc_prlo_acc_s *prlo_acc,
285                 u32 d_id, u32 s_id, __be16 ox_id, int num_pages);
286
287 u16 fc_logo_rsp_parse(struct fchs_s *fchs, int len);
288
289 u16 fc_pdisc_build(struct fchs_s *fchs, u32 d_id, u32 s_id,
290                 u16 ox_id, wwn_t port_name, wwn_t node_name,
291                 u16 pdu_size);
292
293 u16 fc_pdisc_rsp_parse(struct fchs_s *fchs, int len, wwn_t port_name);
294
295 u16 fc_prlo_build(struct fchs_s *fchs, u32 d_id, u32 s_id,
296                 u16 ox_id, int num_pages);
297
298 u16 fc_prlo_rsp_parse(struct fchs_s *fchs, int len);
299
300 u16 fc_tprlo_build(struct fchs_s *fchs, u32 d_id, u32 s_id,
301                 u16 ox_id, int num_pages, enum fc_tprlo_type tprlo_type,
302                 u32 tpr_id);
303
304 u16 fc_tprlo_rsp_parse(struct fchs_s *fchs, int len);
305
306 u16 fc_ba_rjt_build(struct fchs_s *fchs, u32 d_id, u32 s_id,
307                 __be16 ox_id, u32 reason_code, u32 reason_expl);
308
309 u16 fc_gnnid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
310                 u32 port_id);
311
312 u16 fc_ct_rsp_parse(struct ct_hdr_s *cthdr);
313
314 u16 fc_rscn_build(struct fchs_s *fchs, struct fc_rscn_pl_s *rscn, u32 s_id,
315                 u16 ox_id);
316 #endif