Merge tag 'v5.1-next-soc' of https://git.kernel.org/pub/scm/linux/kernel/git/matthias...
[linux-2.6-microblaze.git] / drivers / scsi / bfa / bfa_fcbuild.c
1 /*
2  * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
3  * Copyright (c) 2014- QLogic Corporation.
4  * All rights reserved
5  * www.qlogic.com
6  *
7  * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
8  *
9  * This program is free software; you can redistribute it and/or modify it
10  * under the terms of the GNU General Public License (GPL) Version 2 as
11  * published by the Free Software Foundation
12  *
13  * This program is distributed in the hope that it will be useful, but
14  * WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16  * General Public License for more details.
17  */
18 /*
19  * fcbuild.c - FC link service frame building and parsing routines
20  */
21
22 #include "bfad_drv.h"
23 #include "bfa_fcbuild.h"
24
25 /*
26  * static build functions
27  */
28 static void     fc_els_rsp_build(struct fchs_s *fchs, u32 d_id, u32 s_id,
29                                  __be16 ox_id);
30 static void     fc_bls_rsp_build(struct fchs_s *fchs, u32 d_id, u32 s_id,
31                                  __be16 ox_id);
32 static struct fchs_s fc_els_req_tmpl;
33 static struct fchs_s fc_els_rsp_tmpl;
34 static struct fchs_s fc_bls_req_tmpl;
35 static struct fchs_s fc_bls_rsp_tmpl;
36 static struct fc_ba_acc_s ba_acc_tmpl;
37 static struct fc_logi_s plogi_tmpl;
38 static struct fc_prli_s prli_tmpl;
39 static struct fc_rrq_s rrq_tmpl;
40 static struct fchs_s fcp_fchs_tmpl;
41
42 void
43 fcbuild_init(void)
44 {
45         /*
46          * fc_els_req_tmpl
47          */
48         fc_els_req_tmpl.routing = FC_RTG_EXT_LINK;
49         fc_els_req_tmpl.cat_info = FC_CAT_LD_REQUEST;
50         fc_els_req_tmpl.type = FC_TYPE_ELS;
51         fc_els_req_tmpl.f_ctl =
52                 bfa_hton3b(FCTL_SEQ_INI | FCTL_FS_EXCH | FCTL_END_SEQ |
53                               FCTL_SI_XFER);
54         fc_els_req_tmpl.rx_id = FC_RXID_ANY;
55
56         /*
57          * fc_els_rsp_tmpl
58          */
59         fc_els_rsp_tmpl.routing = FC_RTG_EXT_LINK;
60         fc_els_rsp_tmpl.cat_info = FC_CAT_LD_REPLY;
61         fc_els_rsp_tmpl.type = FC_TYPE_ELS;
62         fc_els_rsp_tmpl.f_ctl =
63                 bfa_hton3b(FCTL_EC_RESP | FCTL_SEQ_INI | FCTL_LS_EXCH |
64                               FCTL_END_SEQ | FCTL_SI_XFER);
65         fc_els_rsp_tmpl.rx_id = FC_RXID_ANY;
66
67         /*
68          * fc_bls_req_tmpl
69          */
70         fc_bls_req_tmpl.routing = FC_RTG_BASIC_LINK;
71         fc_bls_req_tmpl.type = FC_TYPE_BLS;
72         fc_bls_req_tmpl.f_ctl = bfa_hton3b(FCTL_END_SEQ | FCTL_SI_XFER);
73         fc_bls_req_tmpl.rx_id = FC_RXID_ANY;
74
75         /*
76          * fc_bls_rsp_tmpl
77          */
78         fc_bls_rsp_tmpl.routing = FC_RTG_BASIC_LINK;
79         fc_bls_rsp_tmpl.cat_info = FC_CAT_BA_ACC;
80         fc_bls_rsp_tmpl.type = FC_TYPE_BLS;
81         fc_bls_rsp_tmpl.f_ctl =
82                 bfa_hton3b(FCTL_EC_RESP | FCTL_SEQ_INI | FCTL_LS_EXCH |
83                               FCTL_END_SEQ | FCTL_SI_XFER);
84         fc_bls_rsp_tmpl.rx_id = FC_RXID_ANY;
85
86         /*
87          * ba_acc_tmpl
88          */
89         ba_acc_tmpl.seq_id_valid = 0;
90         ba_acc_tmpl.low_seq_cnt = 0;
91         ba_acc_tmpl.high_seq_cnt = 0xFFFF;
92
93         /*
94          * plogi_tmpl
95          */
96         plogi_tmpl.csp.verhi = FC_PH_VER_PH_3;
97         plogi_tmpl.csp.verlo = FC_PH_VER_4_3;
98         plogi_tmpl.csp.ciro = 0x1;
99         plogi_tmpl.csp.cisc = 0x0;
100         plogi_tmpl.csp.altbbcred = 0x0;
101         plogi_tmpl.csp.conseq = cpu_to_be16(0x00FF);
102         plogi_tmpl.csp.ro_bitmap = cpu_to_be16(0x0002);
103         plogi_tmpl.csp.e_d_tov = cpu_to_be32(2000);
104
105         plogi_tmpl.class3.class_valid = 1;
106         plogi_tmpl.class3.sequential = 1;
107         plogi_tmpl.class3.conseq = 0xFF;
108         plogi_tmpl.class3.ospx = 1;
109
110         /*
111          * prli_tmpl
112          */
113         prli_tmpl.command = FC_ELS_PRLI;
114         prli_tmpl.pglen = 0x10;
115         prli_tmpl.pagebytes = cpu_to_be16(0x0014);
116         prli_tmpl.parampage.type = FC_TYPE_FCP;
117         prli_tmpl.parampage.imagepair = 1;
118         prli_tmpl.parampage.servparams.rxrdisab = 1;
119
120         /*
121          * rrq_tmpl
122          */
123         rrq_tmpl.els_cmd.els_code = FC_ELS_RRQ;
124
125         /*
126          * fcp_struct fchs_s mpl
127          */
128         fcp_fchs_tmpl.routing = FC_RTG_FC4_DEV_DATA;
129         fcp_fchs_tmpl.cat_info = FC_CAT_UNSOLICIT_CMD;
130         fcp_fchs_tmpl.type = FC_TYPE_FCP;
131         fcp_fchs_tmpl.f_ctl =
132                 bfa_hton3b(FCTL_FS_EXCH | FCTL_END_SEQ | FCTL_SI_XFER);
133         fcp_fchs_tmpl.seq_id = 1;
134         fcp_fchs_tmpl.rx_id = FC_RXID_ANY;
135 }
136
137 static void
138 fc_gs_fchdr_build(struct fchs_s *fchs, u32 d_id, u32 s_id, u32 ox_id)
139 {
140         memset(fchs, 0, sizeof(struct fchs_s));
141
142         fchs->routing = FC_RTG_FC4_DEV_DATA;
143         fchs->cat_info = FC_CAT_UNSOLICIT_CTRL;
144         fchs->type = FC_TYPE_SERVICES;
145         fchs->f_ctl =
146                 bfa_hton3b(FCTL_SEQ_INI | FCTL_FS_EXCH | FCTL_END_SEQ |
147                               FCTL_SI_XFER);
148         fchs->rx_id = FC_RXID_ANY;
149         fchs->d_id = (d_id);
150         fchs->s_id = (s_id);
151         fchs->ox_id = cpu_to_be16(ox_id);
152
153         /*
154          * @todo no need to set ox_id for request
155          *       no need to set rx_id for response
156          */
157 }
158
159 static void
160 fc_gsresp_fchdr_build(struct fchs_s *fchs, u32 d_id, u32 s_id, u16 ox_id)
161 {
162         memset(fchs, 0, sizeof(struct fchs_s));
163
164         fchs->routing = FC_RTG_FC4_DEV_DATA;
165         fchs->cat_info = FC_CAT_SOLICIT_CTRL;
166         fchs->type = FC_TYPE_SERVICES;
167         fchs->f_ctl =
168                 bfa_hton3b(FCTL_EC_RESP | FCTL_SEQ_INI | FCTL_LS_EXCH |
169                            FCTL_END_SEQ | FCTL_SI_XFER);
170         fchs->d_id = d_id;
171         fchs->s_id = s_id;
172         fchs->ox_id = ox_id;
173 }
174
175 void
176 fc_els_req_build(struct fchs_s *fchs, u32 d_id, u32 s_id, __be16 ox_id)
177 {
178         memcpy(fchs, &fc_els_req_tmpl, sizeof(struct fchs_s));
179         fchs->d_id = (d_id);
180         fchs->s_id = (s_id);
181         fchs->ox_id = cpu_to_be16(ox_id);
182 }
183
184 static void
185 fc_els_rsp_build(struct fchs_s *fchs, u32 d_id, u32 s_id, __be16 ox_id)
186 {
187         memcpy(fchs, &fc_els_rsp_tmpl, sizeof(struct fchs_s));
188         fchs->d_id = d_id;
189         fchs->s_id = s_id;
190         fchs->ox_id = ox_id;
191 }
192
193 static void
194 fc_bls_rsp_build(struct fchs_s *fchs, u32 d_id, u32 s_id, __be16 ox_id)
195 {
196         memcpy(fchs, &fc_bls_rsp_tmpl, sizeof(struct fchs_s));
197         fchs->d_id = d_id;
198         fchs->s_id = s_id;
199         fchs->ox_id = ox_id;
200 }
201
202 static          u16
203 fc_plogi_x_build(struct fchs_s *fchs, void *pld, u32 d_id, u32 s_id,
204                  __be16 ox_id, wwn_t port_name, wwn_t node_name,
205                  u16 pdu_size, u16 bb_cr, u8 els_code)
206 {
207         struct fc_logi_s *plogi = (struct fc_logi_s *) (pld);
208
209         memcpy(plogi, &plogi_tmpl, sizeof(struct fc_logi_s));
210
211         /* For FC AL bb_cr is 0 and altbbcred is 1 */
212         if (!bb_cr)
213                 plogi->csp.altbbcred = 1;
214
215         plogi->els_cmd.els_code = els_code;
216         if (els_code == FC_ELS_PLOGI)
217                 fc_els_req_build(fchs, d_id, s_id, ox_id);
218         else
219                 fc_els_rsp_build(fchs, d_id, s_id, ox_id);
220
221         plogi->csp.rxsz = plogi->class3.rxsz = cpu_to_be16(pdu_size);
222         plogi->csp.bbcred  = cpu_to_be16(bb_cr);
223
224         memcpy(&plogi->port_name, &port_name, sizeof(wwn_t));
225         memcpy(&plogi->node_name, &node_name, sizeof(wwn_t));
226
227         return sizeof(struct fc_logi_s);
228 }
229
230 u16
231 fc_flogi_build(struct fchs_s *fchs, struct fc_logi_s *flogi, u32 s_id,
232                 u16 ox_id, wwn_t port_name, wwn_t node_name, u16 pdu_size,
233                u8 set_npiv, u8 set_auth, u16 local_bb_credits)
234 {
235         u32        d_id = bfa_hton3b(FC_FABRIC_PORT);
236         __be32  *vvl_info;
237
238         memcpy(flogi, &plogi_tmpl, sizeof(struct fc_logi_s));
239
240         flogi->els_cmd.els_code = FC_ELS_FLOGI;
241         fc_els_req_build(fchs, d_id, s_id, ox_id);
242
243         flogi->csp.rxsz = flogi->class3.rxsz = cpu_to_be16(pdu_size);
244         flogi->port_name = port_name;
245         flogi->node_name = node_name;
246
247         /*
248          * Set the NPIV Capability Bit ( word 1, bit 31) of Common
249          * Service Parameters.
250          */
251         flogi->csp.ciro = set_npiv;
252
253         /* set AUTH capability */
254         flogi->csp.security = set_auth;
255
256         flogi->csp.bbcred = cpu_to_be16(local_bb_credits);
257
258         /* Set brcd token in VVL */
259         vvl_info = (u32 *)&flogi->vvl[0];
260
261         /* set the flag to indicate the presence of VVL */
262         flogi->csp.npiv_supp    = 1; /* @todo. field name is not correct */
263         vvl_info[0]     = cpu_to_be32(FLOGI_VVL_BRCD);
264
265         return sizeof(struct fc_logi_s);
266 }
267
268 u16
269 fc_flogi_acc_build(struct fchs_s *fchs, struct fc_logi_s *flogi, u32 s_id,
270                    __be16 ox_id, wwn_t port_name, wwn_t node_name,
271                    u16 pdu_size, u16 local_bb_credits, u8 bb_scn)
272 {
273         u32        d_id = 0;
274         u16        bbscn_rxsz = (bb_scn << 12) | pdu_size;
275
276         memcpy(flogi, &plogi_tmpl, sizeof(struct fc_logi_s));
277         fc_els_rsp_build(fchs, d_id, s_id, ox_id);
278
279         flogi->els_cmd.els_code = FC_ELS_ACC;
280         flogi->class3.rxsz = cpu_to_be16(pdu_size);
281         flogi->csp.rxsz  = cpu_to_be16(bbscn_rxsz);     /* bb_scn/rxsz */
282         flogi->port_name = port_name;
283         flogi->node_name = node_name;
284
285         flogi->csp.bbcred = cpu_to_be16(local_bb_credits);
286
287         return sizeof(struct fc_logi_s);
288 }
289
290 u16
291 fc_fdisc_build(struct fchs_s *fchs, struct fc_logi_s *flogi, u32 s_id,
292                 u16 ox_id, wwn_t port_name, wwn_t node_name, u16 pdu_size)
293 {
294         u32        d_id = bfa_hton3b(FC_FABRIC_PORT);
295
296         memcpy(flogi, &plogi_tmpl, sizeof(struct fc_logi_s));
297
298         flogi->els_cmd.els_code = FC_ELS_FDISC;
299         fc_els_req_build(fchs, d_id, s_id, ox_id);
300
301         flogi->csp.rxsz = flogi->class3.rxsz = cpu_to_be16(pdu_size);
302         flogi->port_name = port_name;
303         flogi->node_name = node_name;
304
305         return sizeof(struct fc_logi_s);
306 }
307
308 u16
309 fc_plogi_build(struct fchs_s *fchs, void *pld, u32 d_id, u32 s_id,
310                u16 ox_id, wwn_t port_name, wwn_t node_name,
311                u16 pdu_size, u16 bb_cr)
312 {
313         return fc_plogi_x_build(fchs, pld, d_id, s_id, ox_id, port_name,
314                                 node_name, pdu_size, bb_cr, FC_ELS_PLOGI);
315 }
316
317 u16
318 fc_plogi_acc_build(struct fchs_s *fchs, void *pld, u32 d_id, u32 s_id,
319                    u16 ox_id, wwn_t port_name, wwn_t node_name,
320                    u16 pdu_size, u16 bb_cr)
321 {
322         return fc_plogi_x_build(fchs, pld, d_id, s_id, ox_id, port_name,
323                                 node_name, pdu_size, bb_cr, FC_ELS_ACC);
324 }
325
326 enum fc_parse_status
327 fc_plogi_rsp_parse(struct fchs_s *fchs, int len, wwn_t port_name)
328 {
329         struct fc_els_cmd_s *els_cmd = (struct fc_els_cmd_s *) (fchs + 1);
330         struct fc_logi_s *plogi;
331         struct fc_ls_rjt_s *ls_rjt;
332
333         switch (els_cmd->els_code) {
334         case FC_ELS_LS_RJT:
335                 ls_rjt = (struct fc_ls_rjt_s *) (fchs + 1);
336                 if (ls_rjt->reason_code == FC_LS_RJT_RSN_LOGICAL_BUSY)
337                         return FC_PARSE_BUSY;
338                 else
339                         return FC_PARSE_FAILURE;
340         case FC_ELS_ACC:
341                 plogi = (struct fc_logi_s *) (fchs + 1);
342                 if (len < sizeof(struct fc_logi_s))
343                         return FC_PARSE_FAILURE;
344
345                 if (!wwn_is_equal(plogi->port_name, port_name))
346                         return FC_PARSE_FAILURE;
347
348                 if (!plogi->class3.class_valid)
349                         return FC_PARSE_FAILURE;
350
351                 if (be16_to_cpu(plogi->class3.rxsz) < (FC_MIN_PDUSZ))
352                         return FC_PARSE_FAILURE;
353
354                 return FC_PARSE_OK;
355         default:
356                 return FC_PARSE_FAILURE;
357         }
358 }
359
360 enum fc_parse_status
361 fc_plogi_parse(struct fchs_s *fchs)
362 {
363         struct fc_logi_s *plogi = (struct fc_logi_s *) (fchs + 1);
364
365         if (plogi->class3.class_valid != 1)
366                 return FC_PARSE_FAILURE;
367
368         if ((be16_to_cpu(plogi->class3.rxsz) < FC_MIN_PDUSZ)
369             || (be16_to_cpu(plogi->class3.rxsz) > FC_MAX_PDUSZ)
370             || (plogi->class3.rxsz == 0))
371                 return FC_PARSE_FAILURE;
372
373         return FC_PARSE_OK;
374 }
375
376 u16
377 fc_prli_build(struct fchs_s *fchs, void *pld, u32 d_id, u32 s_id,
378               u16 ox_id)
379 {
380         struct fc_prli_s *prli = (struct fc_prli_s *) (pld);
381
382         fc_els_req_build(fchs, d_id, s_id, ox_id);
383         memcpy(prli, &prli_tmpl, sizeof(struct fc_prli_s));
384
385         prli->command = FC_ELS_PRLI;
386         prli->parampage.servparams.initiator     = 1;
387         prli->parampage.servparams.retry         = 1;
388         prli->parampage.servparams.rec_support   = 1;
389         prli->parampage.servparams.task_retry_id = 0;
390         prli->parampage.servparams.confirm       = 1;
391
392         return sizeof(struct fc_prli_s);
393 }
394
395 u16
396 fc_prli_acc_build(struct fchs_s *fchs, void *pld, u32 d_id, u32 s_id,
397                   __be16 ox_id, enum bfa_lport_role role)
398 {
399         struct fc_prli_s *prli = (struct fc_prli_s *) (pld);
400
401         fc_els_rsp_build(fchs, d_id, s_id, ox_id);
402         memcpy(prli, &prli_tmpl, sizeof(struct fc_prli_s));
403
404         prli->command = FC_ELS_ACC;
405
406         prli->parampage.servparams.initiator = 1;
407
408         prli->parampage.rspcode = FC_PRLI_ACC_XQTD;
409
410         return sizeof(struct fc_prli_s);
411 }
412
413 enum fc_parse_status
414 fc_prli_rsp_parse(struct fc_prli_s *prli, int len)
415 {
416         if (len < sizeof(struct fc_prli_s))
417                 return FC_PARSE_FAILURE;
418
419         if (prli->command != FC_ELS_ACC)
420                 return FC_PARSE_FAILURE;
421
422         if ((prli->parampage.rspcode != FC_PRLI_ACC_XQTD)
423             && (prli->parampage.rspcode != FC_PRLI_ACC_PREDEF_IMG))
424                 return FC_PARSE_FAILURE;
425
426         if (prli->parampage.servparams.target != 1)
427                 return FC_PARSE_FAILURE;
428
429         return FC_PARSE_OK;
430 }
431
432 enum fc_parse_status
433 fc_prli_parse(struct fc_prli_s *prli)
434 {
435         if (prli->parampage.type != FC_TYPE_FCP)
436                 return FC_PARSE_FAILURE;
437
438         if (!prli->parampage.imagepair)
439                 return FC_PARSE_FAILURE;
440
441         if (!prli->parampage.servparams.initiator)
442                 return FC_PARSE_FAILURE;
443
444         return FC_PARSE_OK;
445 }
446
447 u16
448 fc_logo_build(struct fchs_s *fchs, struct fc_logo_s *logo, u32 d_id, u32 s_id,
449               u16 ox_id, wwn_t port_name)
450 {
451         fc_els_req_build(fchs, d_id, s_id, ox_id);
452
453         memset(logo, '\0', sizeof(struct fc_logo_s));
454         logo->els_cmd.els_code = FC_ELS_LOGO;
455         logo->nport_id = (s_id);
456         logo->orig_port_name = port_name;
457
458         return sizeof(struct fc_logo_s);
459 }
460
461 static u16
462 fc_adisc_x_build(struct fchs_s *fchs, struct fc_adisc_s *adisc, u32 d_id,
463                  u32 s_id, __be16 ox_id, wwn_t port_name,
464                  wwn_t node_name, u8 els_code)
465 {
466         memset(adisc, '\0', sizeof(struct fc_adisc_s));
467
468         adisc->els_cmd.els_code = els_code;
469
470         if (els_code == FC_ELS_ADISC)
471                 fc_els_req_build(fchs, d_id, s_id, ox_id);
472         else
473                 fc_els_rsp_build(fchs, d_id, s_id, ox_id);
474
475         adisc->orig_HA = 0;
476         adisc->orig_port_name = port_name;
477         adisc->orig_node_name = node_name;
478         adisc->nport_id = (s_id);
479
480         return sizeof(struct fc_adisc_s);
481 }
482
483 u16
484 fc_adisc_build(struct fchs_s *fchs, struct fc_adisc_s *adisc, u32 d_id,
485                 u32 s_id, __be16 ox_id, wwn_t port_name, wwn_t node_name)
486 {
487         return fc_adisc_x_build(fchs, adisc, d_id, s_id, ox_id, port_name,
488                                 node_name, FC_ELS_ADISC);
489 }
490
491 u16
492 fc_adisc_acc_build(struct fchs_s *fchs, struct fc_adisc_s *adisc, u32 d_id,
493                    u32 s_id, __be16 ox_id, wwn_t port_name,
494                    wwn_t node_name)
495 {
496         return fc_adisc_x_build(fchs, adisc, d_id, s_id, ox_id, port_name,
497                                 node_name, FC_ELS_ACC);
498 }
499
500 enum fc_parse_status
501 fc_adisc_rsp_parse(struct fc_adisc_s *adisc, int len, wwn_t port_name,
502                                  wwn_t node_name)
503 {
504
505         if (len < sizeof(struct fc_adisc_s))
506                 return FC_PARSE_FAILURE;
507
508         if (adisc->els_cmd.els_code != FC_ELS_ACC)
509                 return FC_PARSE_FAILURE;
510
511         if (!wwn_is_equal(adisc->orig_port_name, port_name))
512                 return FC_PARSE_FAILURE;
513
514         return FC_PARSE_OK;
515 }
516
517 enum fc_parse_status
518 fc_adisc_parse(struct fchs_s *fchs, void *pld, u32 host_dap, wwn_t node_name,
519                wwn_t port_name)
520 {
521         struct fc_adisc_s *adisc = (struct fc_adisc_s *) pld;
522
523         if (adisc->els_cmd.els_code != FC_ELS_ACC)
524                 return FC_PARSE_FAILURE;
525
526         if ((adisc->nport_id == (host_dap))
527             && wwn_is_equal(adisc->orig_port_name, port_name)
528             && wwn_is_equal(adisc->orig_node_name, node_name))
529                 return FC_PARSE_OK;
530
531         return FC_PARSE_FAILURE;
532 }
533
534 enum fc_parse_status
535 fc_pdisc_parse(struct fchs_s *fchs, wwn_t node_name, wwn_t port_name)
536 {
537         struct fc_logi_s *pdisc = (struct fc_logi_s *) (fchs + 1);
538
539         if (pdisc->class3.class_valid != 1)
540                 return FC_PARSE_FAILURE;
541
542         if ((be16_to_cpu(pdisc->class3.rxsz) <
543                 (FC_MIN_PDUSZ - sizeof(struct fchs_s)))
544             || (pdisc->class3.rxsz == 0))
545                 return FC_PARSE_FAILURE;
546
547         if (!wwn_is_equal(pdisc->port_name, port_name))
548                 return FC_PARSE_FAILURE;
549
550         if (!wwn_is_equal(pdisc->node_name, node_name))
551                 return FC_PARSE_FAILURE;
552
553         return FC_PARSE_OK;
554 }
555
556 u16
557 fc_abts_build(struct fchs_s *fchs, u32 d_id, u32 s_id, u16 ox_id)
558 {
559         memcpy(fchs, &fc_bls_req_tmpl, sizeof(struct fchs_s));
560         fchs->cat_info = FC_CAT_ABTS;
561         fchs->d_id = (d_id);
562         fchs->s_id = (s_id);
563         fchs->ox_id = cpu_to_be16(ox_id);
564
565         return sizeof(struct fchs_s);
566 }
567
568 enum fc_parse_status
569 fc_abts_rsp_parse(struct fchs_s *fchs, int len)
570 {
571         if ((fchs->cat_info == FC_CAT_BA_ACC)
572             || (fchs->cat_info == FC_CAT_BA_RJT))
573                 return FC_PARSE_OK;
574
575         return FC_PARSE_FAILURE;
576 }
577
578 u16
579 fc_rrq_build(struct fchs_s *fchs, struct fc_rrq_s *rrq, u32 d_id, u32 s_id,
580              u16 ox_id, u16 rrq_oxid)
581 {
582         fc_els_req_build(fchs, d_id, s_id, ox_id);
583
584         /*
585          * build rrq payload
586          */
587         memcpy(rrq, &rrq_tmpl, sizeof(struct fc_rrq_s));
588         rrq->s_id = (s_id);
589         rrq->ox_id = cpu_to_be16(rrq_oxid);
590         rrq->rx_id = FC_RXID_ANY;
591
592         return sizeof(struct fc_rrq_s);
593 }
594
595 u16
596 fc_logo_acc_build(struct fchs_s *fchs, void *pld, u32 d_id, u32 s_id,
597                   __be16 ox_id)
598 {
599         struct fc_els_cmd_s *acc = pld;
600
601         fc_els_rsp_build(fchs, d_id, s_id, ox_id);
602
603         memset(acc, 0, sizeof(struct fc_els_cmd_s));
604         acc->els_code = FC_ELS_ACC;
605
606         return sizeof(struct fc_els_cmd_s);
607 }
608
609 u16
610 fc_ls_rjt_build(struct fchs_s *fchs, struct fc_ls_rjt_s *ls_rjt, u32 d_id,
611                 u32 s_id, __be16 ox_id, u8 reason_code,
612                 u8 reason_code_expl)
613 {
614         fc_els_rsp_build(fchs, d_id, s_id, ox_id);
615         memset(ls_rjt, 0, sizeof(struct fc_ls_rjt_s));
616
617         ls_rjt->els_cmd.els_code = FC_ELS_LS_RJT;
618         ls_rjt->reason_code = reason_code;
619         ls_rjt->reason_code_expl = reason_code_expl;
620         ls_rjt->vendor_unique = 0x00;
621
622         return sizeof(struct fc_ls_rjt_s);
623 }
624
625 u16
626 fc_ba_acc_build(struct fchs_s *fchs, struct fc_ba_acc_s *ba_acc, u32 d_id,
627                 u32 s_id, __be16 ox_id, u16 rx_id)
628 {
629         fc_bls_rsp_build(fchs, d_id, s_id, ox_id);
630
631         memcpy(ba_acc, &ba_acc_tmpl, sizeof(struct fc_ba_acc_s));
632
633         fchs->rx_id = rx_id;
634
635         ba_acc->ox_id = fchs->ox_id;
636         ba_acc->rx_id = fchs->rx_id;
637
638         return sizeof(struct fc_ba_acc_s);
639 }
640
641 u16
642 fc_ls_acc_build(struct fchs_s *fchs, struct fc_els_cmd_s *els_cmd, u32 d_id,
643                 u32 s_id, __be16 ox_id)
644 {
645         fc_els_rsp_build(fchs, d_id, s_id, ox_id);
646         memset(els_cmd, 0, sizeof(struct fc_els_cmd_s));
647         els_cmd->els_code = FC_ELS_ACC;
648
649         return sizeof(struct fc_els_cmd_s);
650 }
651
652 int
653 fc_logout_params_pages(struct fchs_s *fc_frame, u8 els_code)
654 {
655         int             num_pages = 0;
656         struct fc_prlo_s *prlo;
657         struct fc_tprlo_s *tprlo;
658
659         if (els_code == FC_ELS_PRLO) {
660                 prlo = (struct fc_prlo_s *) (fc_frame + 1);
661                 num_pages = (be16_to_cpu(prlo->payload_len) - 4) / 16;
662         } else {
663                 tprlo = (struct fc_tprlo_s *) (fc_frame + 1);
664                 num_pages = (be16_to_cpu(tprlo->payload_len) - 4) / 16;
665         }
666         return num_pages;
667 }
668
669 u16
670 fc_tprlo_acc_build(struct fchs_s *fchs, struct fc_tprlo_acc_s *tprlo_acc,
671                 u32 d_id, u32 s_id, __be16 ox_id, int num_pages)
672 {
673         int             page;
674
675         fc_els_rsp_build(fchs, d_id, s_id, ox_id);
676
677         memset(tprlo_acc, 0, (num_pages * 16) + 4);
678         tprlo_acc->command = FC_ELS_ACC;
679
680         tprlo_acc->page_len = 0x10;
681         tprlo_acc->payload_len = cpu_to_be16((num_pages * 16) + 4);
682
683         for (page = 0; page < num_pages; page++) {
684                 tprlo_acc->tprlo_acc_params[page].opa_valid = 0;
685                 tprlo_acc->tprlo_acc_params[page].rpa_valid = 0;
686                 tprlo_acc->tprlo_acc_params[page].fc4type_csp = FC_TYPE_FCP;
687                 tprlo_acc->tprlo_acc_params[page].orig_process_assc = 0;
688                 tprlo_acc->tprlo_acc_params[page].resp_process_assc = 0;
689         }
690         return be16_to_cpu(tprlo_acc->payload_len);
691 }
692
693 u16
694 fc_prlo_acc_build(struct fchs_s *fchs, struct fc_prlo_acc_s *prlo_acc, u32 d_id,
695                   u32 s_id, __be16 ox_id, int num_pages)
696 {
697         int             page;
698
699         fc_els_rsp_build(fchs, d_id, s_id, ox_id);
700
701         memset(prlo_acc, 0, (num_pages * 16) + 4);
702         prlo_acc->command = FC_ELS_ACC;
703         prlo_acc->page_len = 0x10;
704         prlo_acc->payload_len = cpu_to_be16((num_pages * 16) + 4);
705
706         for (page = 0; page < num_pages; page++) {
707                 prlo_acc->prlo_acc_params[page].opa_valid = 0;
708                 prlo_acc->prlo_acc_params[page].rpa_valid = 0;
709                 prlo_acc->prlo_acc_params[page].fc4type_csp = FC_TYPE_FCP;
710                 prlo_acc->prlo_acc_params[page].orig_process_assc = 0;
711                 prlo_acc->prlo_acc_params[page].resp_process_assc = 0;
712         }
713
714         return be16_to_cpu(prlo_acc->payload_len);
715 }
716
717 u16
718 fc_rnid_build(struct fchs_s *fchs, struct fc_rnid_cmd_s *rnid, u32 d_id,
719                 u32 s_id, u16 ox_id, u32 data_format)
720 {
721         fc_els_req_build(fchs, d_id, s_id, ox_id);
722
723         memset(rnid, 0, sizeof(struct fc_rnid_cmd_s));
724
725         rnid->els_cmd.els_code = FC_ELS_RNID;
726         rnid->node_id_data_format = data_format;
727
728         return sizeof(struct fc_rnid_cmd_s);
729 }
730
731 u16
732 fc_rnid_acc_build(struct fchs_s *fchs, struct fc_rnid_acc_s *rnid_acc, u32 d_id,
733                   u32 s_id, __be16 ox_id, u32 data_format,
734                   struct fc_rnid_common_id_data_s *common_id_data,
735                   struct fc_rnid_general_topology_data_s *gen_topo_data)
736 {
737         memset(rnid_acc, 0, sizeof(struct fc_rnid_acc_s));
738
739         fc_els_rsp_build(fchs, d_id, s_id, ox_id);
740
741         rnid_acc->els_cmd.els_code = FC_ELS_ACC;
742         rnid_acc->node_id_data_format = data_format;
743         rnid_acc->common_id_data_length =
744                         sizeof(struct fc_rnid_common_id_data_s);
745         rnid_acc->common_id_data = *common_id_data;
746
747         if (data_format == RNID_NODEID_DATA_FORMAT_DISCOVERY) {
748                 rnid_acc->specific_id_data_length =
749                         sizeof(struct fc_rnid_general_topology_data_s);
750                 rnid_acc->gen_topology_data = *gen_topo_data;
751                 return sizeof(struct fc_rnid_acc_s);
752         } else {
753                 return sizeof(struct fc_rnid_acc_s) -
754                         sizeof(struct fc_rnid_general_topology_data_s);
755         }
756
757 }
758
759 u16
760 fc_rpsc_build(struct fchs_s *fchs, struct fc_rpsc_cmd_s *rpsc, u32 d_id,
761                 u32 s_id, u16 ox_id)
762 {
763         fc_els_req_build(fchs, d_id, s_id, ox_id);
764
765         memset(rpsc, 0, sizeof(struct fc_rpsc_cmd_s));
766
767         rpsc->els_cmd.els_code = FC_ELS_RPSC;
768         return sizeof(struct fc_rpsc_cmd_s);
769 }
770
771 u16
772 fc_rpsc2_build(struct fchs_s *fchs, struct fc_rpsc2_cmd_s *rpsc2, u32 d_id,
773                 u32 s_id, u32 *pid_list, u16 npids)
774 {
775         u32 dctlr_id = FC_DOMAIN_CTRLR(bfa_hton3b(d_id));
776         int i = 0;
777
778         fc_els_req_build(fchs, bfa_hton3b(dctlr_id), s_id, 0);
779
780         memset(rpsc2, 0, sizeof(struct fc_rpsc2_cmd_s));
781
782         rpsc2->els_cmd.els_code = FC_ELS_RPSC;
783         rpsc2->token = cpu_to_be32(FC_BRCD_TOKEN);
784         rpsc2->num_pids  = cpu_to_be16(npids);
785         for (i = 0; i < npids; i++)
786                 rpsc2->pid_list[i].pid = pid_list[i];
787
788         return sizeof(struct fc_rpsc2_cmd_s) + ((npids - 1) * (sizeof(u32)));
789 }
790
791 u16
792 fc_rpsc_acc_build(struct fchs_s *fchs, struct fc_rpsc_acc_s *rpsc_acc,
793                 u32 d_id, u32 s_id, __be16 ox_id,
794                   struct fc_rpsc_speed_info_s *oper_speed)
795 {
796         memset(rpsc_acc, 0, sizeof(struct fc_rpsc_acc_s));
797
798         fc_els_rsp_build(fchs, d_id, s_id, ox_id);
799
800         rpsc_acc->command = FC_ELS_ACC;
801         rpsc_acc->num_entries = cpu_to_be16(1);
802
803         rpsc_acc->speed_info[0].port_speed_cap =
804                 cpu_to_be16(oper_speed->port_speed_cap);
805
806         rpsc_acc->speed_info[0].port_op_speed =
807                 cpu_to_be16(oper_speed->port_op_speed);
808
809         return sizeof(struct fc_rpsc_acc_s);
810 }
811
812 u16
813 fc_pdisc_build(struct fchs_s *fchs, u32 d_id, u32 s_id, u16 ox_id,
814                wwn_t port_name, wwn_t node_name, u16 pdu_size)
815 {
816         struct fc_logi_s *pdisc = (struct fc_logi_s *) (fchs + 1);
817
818         memcpy(pdisc, &plogi_tmpl, sizeof(struct fc_logi_s));
819
820         pdisc->els_cmd.els_code = FC_ELS_PDISC;
821         fc_els_req_build(fchs, d_id, s_id, ox_id);
822
823         pdisc->csp.rxsz = pdisc->class3.rxsz = cpu_to_be16(pdu_size);
824         pdisc->port_name = port_name;
825         pdisc->node_name = node_name;
826
827         return sizeof(struct fc_logi_s);
828 }
829
830 u16
831 fc_pdisc_rsp_parse(struct fchs_s *fchs, int len, wwn_t port_name)
832 {
833         struct fc_logi_s *pdisc = (struct fc_logi_s *) (fchs + 1);
834
835         if (len < sizeof(struct fc_logi_s))
836                 return FC_PARSE_LEN_INVAL;
837
838         if (pdisc->els_cmd.els_code != FC_ELS_ACC)
839                 return FC_PARSE_ACC_INVAL;
840
841         if (!wwn_is_equal(pdisc->port_name, port_name))
842                 return FC_PARSE_PWWN_NOT_EQUAL;
843
844         if (!pdisc->class3.class_valid)
845                 return FC_PARSE_NWWN_NOT_EQUAL;
846
847         if (be16_to_cpu(pdisc->class3.rxsz) < (FC_MIN_PDUSZ))
848                 return FC_PARSE_RXSZ_INVAL;
849
850         return FC_PARSE_OK;
851 }
852
853 u16
854 fc_prlo_build(struct fchs_s *fchs, u32 d_id, u32 s_id, u16 ox_id,
855               int num_pages)
856 {
857         struct fc_prlo_s *prlo = (struct fc_prlo_s *) (fchs + 1);
858         int             page;
859
860         fc_els_req_build(fchs, d_id, s_id, ox_id);
861         memset(prlo, 0, (num_pages * 16) + 4);
862         prlo->command = FC_ELS_PRLO;
863         prlo->page_len = 0x10;
864         prlo->payload_len = cpu_to_be16((num_pages * 16) + 4);
865
866         for (page = 0; page < num_pages; page++) {
867                 prlo->prlo_params[page].type = FC_TYPE_FCP;
868                 prlo->prlo_params[page].opa_valid = 0;
869                 prlo->prlo_params[page].rpa_valid = 0;
870                 prlo->prlo_params[page].orig_process_assc = 0;
871                 prlo->prlo_params[page].resp_process_assc = 0;
872         }
873
874         return be16_to_cpu(prlo->payload_len);
875 }
876
877 u16
878 fc_tprlo_build(struct fchs_s *fchs, u32 d_id, u32 s_id, u16 ox_id,
879                int num_pages, enum fc_tprlo_type tprlo_type, u32 tpr_id)
880 {
881         struct fc_tprlo_s *tprlo = (struct fc_tprlo_s *) (fchs + 1);
882         int             page;
883
884         fc_els_req_build(fchs, d_id, s_id, ox_id);
885         memset(tprlo, 0, (num_pages * 16) + 4);
886         tprlo->command = FC_ELS_TPRLO;
887         tprlo->page_len = 0x10;
888         tprlo->payload_len = cpu_to_be16((num_pages * 16) + 4);
889
890         for (page = 0; page < num_pages; page++) {
891                 tprlo->tprlo_params[page].type = FC_TYPE_FCP;
892                 tprlo->tprlo_params[page].opa_valid = 0;
893                 tprlo->tprlo_params[page].rpa_valid = 0;
894                 tprlo->tprlo_params[page].orig_process_assc = 0;
895                 tprlo->tprlo_params[page].resp_process_assc = 0;
896                 if (tprlo_type == FC_GLOBAL_LOGO) {
897                         tprlo->tprlo_params[page].global_process_logout = 1;
898                 } else if (tprlo_type == FC_TPR_LOGO) {
899                         tprlo->tprlo_params[page].tpo_nport_valid = 1;
900                         tprlo->tprlo_params[page].tpo_nport_id = (tpr_id);
901                 }
902         }
903
904         return be16_to_cpu(tprlo->payload_len);
905 }
906
907 u16
908 fc_ba_rjt_build(struct fchs_s *fchs, u32 d_id, u32 s_id, __be16 ox_id,
909                 u32 reason_code, u32 reason_expl)
910 {
911         struct fc_ba_rjt_s *ba_rjt = (struct fc_ba_rjt_s *) (fchs + 1);
912
913         fc_bls_rsp_build(fchs, d_id, s_id, ox_id);
914
915         fchs->cat_info = FC_CAT_BA_RJT;
916         ba_rjt->reason_code = reason_code;
917         ba_rjt->reason_expl = reason_expl;
918         return sizeof(struct fc_ba_rjt_s);
919 }
920
921 static void
922 fc_gs_cthdr_build(struct ct_hdr_s *cthdr, u32 s_id, u16 cmd_code)
923 {
924         memset(cthdr, 0, sizeof(struct ct_hdr_s));
925         cthdr->rev_id = CT_GS3_REVISION;
926         cthdr->gs_type = CT_GSTYPE_DIRSERVICE;
927         cthdr->gs_sub_type = CT_GSSUBTYPE_NAMESERVER;
928         cthdr->cmd_rsp_code = cpu_to_be16(cmd_code);
929 }
930
931 static void
932 fc_gs_fdmi_cthdr_build(struct ct_hdr_s *cthdr, u32 s_id, u16 cmd_code)
933 {
934         memset(cthdr, 0, sizeof(struct ct_hdr_s));
935         cthdr->rev_id = CT_GS3_REVISION;
936         cthdr->gs_type = CT_GSTYPE_MGMTSERVICE;
937         cthdr->gs_sub_type = CT_GSSUBTYPE_HBA_MGMTSERVER;
938         cthdr->cmd_rsp_code = cpu_to_be16(cmd_code);
939 }
940
941 static void
942 fc_gs_ms_cthdr_build(struct ct_hdr_s *cthdr, u32 s_id, u16 cmd_code,
943                                          u8 sub_type)
944 {
945         memset(cthdr, 0, sizeof(struct ct_hdr_s));
946         cthdr->rev_id = CT_GS3_REVISION;
947         cthdr->gs_type = CT_GSTYPE_MGMTSERVICE;
948         cthdr->gs_sub_type = sub_type;
949         cthdr->cmd_rsp_code = cpu_to_be16(cmd_code);
950 }
951
952 u16
953 fc_gidpn_build(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
954                wwn_t port_name)
955 {
956         struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
957         struct fcgs_gidpn_req_s *gidpn = (struct fcgs_gidpn_req_s *)(cthdr + 1);
958         u32        d_id = bfa_hton3b(FC_NAME_SERVER);
959
960         fc_gs_fchdr_build(fchs, d_id, s_id, ox_id);
961         fc_gs_cthdr_build(cthdr, s_id, GS_GID_PN);
962
963         memset(gidpn, 0, sizeof(struct fcgs_gidpn_req_s));
964         gidpn->port_name = port_name;
965         return sizeof(struct fcgs_gidpn_req_s) + sizeof(struct ct_hdr_s);
966 }
967
968 u16
969 fc_gpnid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
970                u32 port_id)
971 {
972         struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
973         fcgs_gpnid_req_t *gpnid = (fcgs_gpnid_req_t *) (cthdr + 1);
974         u32        d_id = bfa_hton3b(FC_NAME_SERVER);
975
976         fc_gs_fchdr_build(fchs, d_id, s_id, ox_id);
977         fc_gs_cthdr_build(cthdr, s_id, GS_GPN_ID);
978
979         memset(gpnid, 0, sizeof(fcgs_gpnid_req_t));
980         gpnid->dap = port_id;
981         return sizeof(fcgs_gpnid_req_t) + sizeof(struct ct_hdr_s);
982 }
983
984 u16
985 fc_gnnid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
986                u32 port_id)
987 {
988         struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
989         fcgs_gnnid_req_t *gnnid = (fcgs_gnnid_req_t *) (cthdr + 1);
990         u32        d_id = bfa_hton3b(FC_NAME_SERVER);
991
992         fc_gs_fchdr_build(fchs, d_id, s_id, ox_id);
993         fc_gs_cthdr_build(cthdr, s_id, GS_GNN_ID);
994
995         memset(gnnid, 0, sizeof(fcgs_gnnid_req_t));
996         gnnid->dap = port_id;
997         return sizeof(fcgs_gnnid_req_t) + sizeof(struct ct_hdr_s);
998 }
999
1000 u16
1001 fc_ct_rsp_parse(struct ct_hdr_s *cthdr)
1002 {
1003         if (be16_to_cpu(cthdr->cmd_rsp_code) != CT_RSP_ACCEPT) {
1004                 if (cthdr->reason_code == CT_RSN_LOGICAL_BUSY)
1005                         return FC_PARSE_BUSY;
1006                 else
1007                         return FC_PARSE_FAILURE;
1008         }
1009
1010         return FC_PARSE_OK;
1011 }
1012
1013 u16
1014 fc_gs_rjt_build(struct fchs_s *fchs,  struct ct_hdr_s *cthdr,
1015                 u32 d_id, u32 s_id, u16 ox_id, u8 reason_code,
1016                 u8 reason_code_expl)
1017 {
1018         fc_gsresp_fchdr_build(fchs, d_id, s_id, ox_id);
1019
1020         cthdr->cmd_rsp_code = cpu_to_be16(CT_RSP_REJECT);
1021         cthdr->rev_id = CT_GS3_REVISION;
1022
1023         cthdr->reason_code = reason_code;
1024         cthdr->exp_code    = reason_code_expl;
1025         return sizeof(struct ct_hdr_s);
1026 }
1027
1028 u16
1029 fc_scr_build(struct fchs_s *fchs, struct fc_scr_s *scr,
1030                 u8 set_br_reg, u32 s_id, u16 ox_id)
1031 {
1032         u32        d_id = bfa_hton3b(FC_FABRIC_CONTROLLER);
1033
1034         fc_els_req_build(fchs, d_id, s_id, ox_id);
1035
1036         memset(scr, 0, sizeof(struct fc_scr_s));
1037         scr->command = FC_ELS_SCR;
1038         scr->reg_func = FC_SCR_REG_FUNC_FULL;
1039         if (set_br_reg)
1040                 scr->vu_reg_func = FC_VU_SCR_REG_FUNC_FABRIC_NAME_CHANGE;
1041
1042         return sizeof(struct fc_scr_s);
1043 }
1044
1045 u16
1046 fc_rscn_build(struct fchs_s *fchs, struct fc_rscn_pl_s *rscn,
1047                 u32 s_id, u16 ox_id)
1048 {
1049         u32        d_id = bfa_hton3b(FC_FABRIC_CONTROLLER);
1050         u16        payldlen;
1051
1052         fc_els_req_build(fchs, d_id, s_id, ox_id);
1053         rscn->command = FC_ELS_RSCN;
1054         rscn->pagelen = sizeof(rscn->event[0]);
1055
1056         payldlen = sizeof(u32) + rscn->pagelen;
1057         rscn->payldlen = cpu_to_be16(payldlen);
1058
1059         rscn->event[0].format = FC_RSCN_FORMAT_PORTID;
1060         rscn->event[0].portid = s_id;
1061
1062         return sizeof(struct fc_rscn_pl_s);
1063 }
1064
1065 u16
1066 fc_rftid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
1067                enum bfa_lport_role roles)
1068 {
1069         struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
1070         struct fcgs_rftid_req_s *rftid = (struct fcgs_rftid_req_s *)(cthdr + 1);
1071         u32        type_value, d_id = bfa_hton3b(FC_NAME_SERVER);
1072         u8         index;
1073
1074         fc_gs_fchdr_build(fchs, d_id, s_id, ox_id);
1075         fc_gs_cthdr_build(cthdr, s_id, GS_RFT_ID);
1076
1077         memset(rftid, 0, sizeof(struct fcgs_rftid_req_s));
1078
1079         rftid->dap = s_id;
1080
1081         /* By default, FCP FC4 Type is registered */
1082         index = FC_TYPE_FCP >> 5;
1083         type_value = 1 << (FC_TYPE_FCP % 32);
1084         rftid->fc4_type[index] = cpu_to_be32(type_value);
1085
1086         return sizeof(struct fcgs_rftid_req_s) + sizeof(struct ct_hdr_s);
1087 }
1088
1089 u16
1090 fc_rftid_build_sol(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
1091                    u8 *fc4_bitmap, u32 bitmap_size)
1092 {
1093         struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
1094         struct fcgs_rftid_req_s *rftid = (struct fcgs_rftid_req_s *)(cthdr + 1);
1095         u32        d_id = bfa_hton3b(FC_NAME_SERVER);
1096
1097         fc_gs_fchdr_build(fchs, d_id, s_id, ox_id);
1098         fc_gs_cthdr_build(cthdr, s_id, GS_RFT_ID);
1099
1100         memset(rftid, 0, sizeof(struct fcgs_rftid_req_s));
1101
1102         rftid->dap = s_id;
1103         memcpy((void *)rftid->fc4_type, (void *)fc4_bitmap,
1104                 (bitmap_size < 32 ? bitmap_size : 32));
1105
1106         return sizeof(struct fcgs_rftid_req_s) + sizeof(struct ct_hdr_s);
1107 }
1108
1109 u16
1110 fc_rffid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
1111                u8 fc4_type, u8 fc4_ftrs)
1112 {
1113         struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
1114         struct fcgs_rffid_req_s *rffid = (struct fcgs_rffid_req_s *)(cthdr + 1);
1115         u32         d_id = bfa_hton3b(FC_NAME_SERVER);
1116
1117         fc_gs_fchdr_build(fchs, d_id, s_id, ox_id);
1118         fc_gs_cthdr_build(cthdr, s_id, GS_RFF_ID);
1119
1120         memset(rffid, 0, sizeof(struct fcgs_rffid_req_s));
1121
1122         rffid->dap          = s_id;
1123         rffid->fc4ftr_bits  = fc4_ftrs;
1124         rffid->fc4_type     = fc4_type;
1125
1126         return sizeof(struct fcgs_rffid_req_s) + sizeof(struct ct_hdr_s);
1127 }
1128
1129 u16
1130 fc_rspnid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
1131                 u8 *name)
1132 {
1133
1134         struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
1135         struct fcgs_rspnid_req_s *rspnid =
1136                         (struct fcgs_rspnid_req_s *)(cthdr + 1);
1137         u32        d_id = bfa_hton3b(FC_NAME_SERVER);
1138
1139         fc_gs_fchdr_build(fchs, d_id, s_id, ox_id);
1140         fc_gs_cthdr_build(cthdr, s_id, GS_RSPN_ID);
1141
1142         memset(rspnid, 0, sizeof(struct fcgs_rspnid_req_s));
1143
1144         rspnid->dap = s_id;
1145         strlcpy(rspnid->spn, name, sizeof(rspnid->spn));
1146         rspnid->spn_len = (u8) strlen(rspnid->spn);
1147
1148         return sizeof(struct fcgs_rspnid_req_s) + sizeof(struct ct_hdr_s);
1149 }
1150
1151 u16
1152 fc_rsnn_nn_build(struct fchs_s *fchs, void *pyld, u32 s_id,
1153                         wwn_t node_name, u8 *name)
1154 {
1155         struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
1156         struct fcgs_rsnn_nn_req_s *rsnn_nn =
1157                 (struct fcgs_rsnn_nn_req_s *) (cthdr + 1);
1158         u32     d_id = bfa_hton3b(FC_NAME_SERVER);
1159
1160         fc_gs_fchdr_build(fchs, d_id, s_id, 0);
1161         fc_gs_cthdr_build(cthdr, s_id, GS_RSNN_NN);
1162
1163         memset(rsnn_nn, 0, sizeof(struct fcgs_rsnn_nn_req_s));
1164
1165         rsnn_nn->node_name = node_name;
1166         strlcpy(rsnn_nn->snn, name, sizeof(rsnn_nn->snn));
1167         rsnn_nn->snn_len = (u8) strlen(rsnn_nn->snn);
1168
1169         return sizeof(struct fcgs_rsnn_nn_req_s) + sizeof(struct ct_hdr_s);
1170 }
1171
1172 u16
1173 fc_gid_ft_build(struct fchs_s *fchs, void *pyld, u32 s_id, u8 fc4_type)
1174 {
1175
1176         struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
1177         struct fcgs_gidft_req_s *gidft = (struct fcgs_gidft_req_s *)(cthdr + 1);
1178         u32        d_id = bfa_hton3b(FC_NAME_SERVER);
1179
1180         fc_gs_fchdr_build(fchs, d_id, s_id, 0);
1181
1182         fc_gs_cthdr_build(cthdr, s_id, GS_GID_FT);
1183
1184         memset(gidft, 0, sizeof(struct fcgs_gidft_req_s));
1185         gidft->fc4_type = fc4_type;
1186         gidft->domain_id = 0;
1187         gidft->area_id = 0;
1188
1189         return sizeof(struct fcgs_gidft_req_s) + sizeof(struct ct_hdr_s);
1190 }
1191
1192 u16
1193 fc_rpnid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u32 port_id,
1194                wwn_t port_name)
1195 {
1196         struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
1197         struct fcgs_rpnid_req_s *rpnid = (struct fcgs_rpnid_req_s *)(cthdr + 1);
1198         u32        d_id = bfa_hton3b(FC_NAME_SERVER);
1199
1200         fc_gs_fchdr_build(fchs, d_id, s_id, 0);
1201         fc_gs_cthdr_build(cthdr, s_id, GS_RPN_ID);
1202
1203         memset(rpnid, 0, sizeof(struct fcgs_rpnid_req_s));
1204         rpnid->port_id = port_id;
1205         rpnid->port_name = port_name;
1206
1207         return sizeof(struct fcgs_rpnid_req_s) + sizeof(struct ct_hdr_s);
1208 }
1209
1210 u16
1211 fc_rnnid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u32 port_id,
1212                wwn_t node_name)
1213 {
1214         struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
1215         struct fcgs_rnnid_req_s *rnnid = (struct fcgs_rnnid_req_s *)(cthdr + 1);
1216         u32        d_id = bfa_hton3b(FC_NAME_SERVER);
1217
1218         fc_gs_fchdr_build(fchs, d_id, s_id, 0);
1219         fc_gs_cthdr_build(cthdr, s_id, GS_RNN_ID);
1220
1221         memset(rnnid, 0, sizeof(struct fcgs_rnnid_req_s));
1222         rnnid->port_id = port_id;
1223         rnnid->node_name = node_name;
1224
1225         return sizeof(struct fcgs_rnnid_req_s) + sizeof(struct ct_hdr_s);
1226 }
1227
1228 u16
1229 fc_rcsid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u32 port_id,
1230                u32 cos)
1231 {
1232         struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
1233         struct fcgs_rcsid_req_s *rcsid =
1234                         (struct fcgs_rcsid_req_s *) (cthdr + 1);
1235         u32        d_id = bfa_hton3b(FC_NAME_SERVER);
1236
1237         fc_gs_fchdr_build(fchs, d_id, s_id, 0);
1238         fc_gs_cthdr_build(cthdr, s_id, GS_RCS_ID);
1239
1240         memset(rcsid, 0, sizeof(struct fcgs_rcsid_req_s));
1241         rcsid->port_id = port_id;
1242         rcsid->cos = cos;
1243
1244         return sizeof(struct fcgs_rcsid_req_s) + sizeof(struct ct_hdr_s);
1245 }
1246
1247 u16
1248 fc_rptid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u32 port_id,
1249                u8 port_type)
1250 {
1251         struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
1252         struct fcgs_rptid_req_s *rptid = (struct fcgs_rptid_req_s *)(cthdr + 1);
1253         u32        d_id = bfa_hton3b(FC_NAME_SERVER);
1254
1255         fc_gs_fchdr_build(fchs, d_id, s_id, 0);
1256         fc_gs_cthdr_build(cthdr, s_id, GS_RPT_ID);
1257
1258         memset(rptid, 0, sizeof(struct fcgs_rptid_req_s));
1259         rptid->port_id = port_id;
1260         rptid->port_type = port_type;
1261
1262         return sizeof(struct fcgs_rptid_req_s) + sizeof(struct ct_hdr_s);
1263 }
1264
1265 u16
1266 fc_ganxt_build(struct fchs_s *fchs, void *pyld, u32 s_id, u32 port_id)
1267 {
1268         struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
1269         struct fcgs_ganxt_req_s *ganxt = (struct fcgs_ganxt_req_s *)(cthdr + 1);
1270         u32        d_id = bfa_hton3b(FC_NAME_SERVER);
1271
1272         fc_gs_fchdr_build(fchs, d_id, s_id, 0);
1273         fc_gs_cthdr_build(cthdr, s_id, GS_GA_NXT);
1274
1275         memset(ganxt, 0, sizeof(struct fcgs_ganxt_req_s));
1276         ganxt->port_id = port_id;
1277
1278         return sizeof(struct ct_hdr_s) + sizeof(struct fcgs_ganxt_req_s);
1279 }
1280
1281 /*
1282  * Builds fc hdr and ct hdr for FDMI requests.
1283  */
1284 u16
1285 fc_fdmi_reqhdr_build(struct fchs_s *fchs, void *pyld, u32 s_id,
1286                      u16 cmd_code)
1287 {
1288
1289         struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
1290         u32        d_id = bfa_hton3b(FC_MGMT_SERVER);
1291
1292         fc_gs_fchdr_build(fchs, d_id, s_id, 0);
1293         fc_gs_fdmi_cthdr_build(cthdr, s_id, cmd_code);
1294
1295         return sizeof(struct ct_hdr_s);
1296 }
1297
1298 /*
1299  * Given a FC4 Type, this function returns a fc4 type bitmask
1300  */
1301 void
1302 fc_get_fc4type_bitmask(u8 fc4_type, u8 *bit_mask)
1303 {
1304         u8         index;
1305         __be32       *ptr = (__be32 *) bit_mask;
1306         u32        type_value;
1307
1308         /*
1309          * @todo : Check for bitmask size
1310          */
1311
1312         index = fc4_type >> 5;
1313         type_value = 1 << (fc4_type % 32);
1314         ptr[index] = cpu_to_be32(type_value);
1315
1316 }
1317
1318 /*
1319  *      GMAL Request
1320  */
1321 u16
1322 fc_gmal_req_build(struct fchs_s *fchs, void *pyld, u32 s_id, wwn_t wwn)
1323 {
1324         struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
1325         fcgs_gmal_req_t *gmal = (fcgs_gmal_req_t *) (cthdr + 1);
1326         u32        d_id = bfa_hton3b(FC_MGMT_SERVER);
1327
1328         fc_gs_fchdr_build(fchs, d_id, s_id, 0);
1329         fc_gs_ms_cthdr_build(cthdr, s_id, GS_FC_GMAL_CMD,
1330                         CT_GSSUBTYPE_CFGSERVER);
1331
1332         memset(gmal, 0, sizeof(fcgs_gmal_req_t));
1333         gmal->wwn = wwn;
1334
1335         return sizeof(struct ct_hdr_s) + sizeof(fcgs_gmal_req_t);
1336 }
1337
1338 /*
1339  * GFN (Get Fabric Name) Request
1340  */
1341 u16
1342 fc_gfn_req_build(struct fchs_s *fchs, void *pyld, u32 s_id, wwn_t wwn)
1343 {
1344         struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
1345         fcgs_gfn_req_t *gfn = (fcgs_gfn_req_t *) (cthdr + 1);
1346         u32        d_id = bfa_hton3b(FC_MGMT_SERVER);
1347
1348         fc_gs_fchdr_build(fchs, d_id, s_id, 0);
1349         fc_gs_ms_cthdr_build(cthdr, s_id, GS_FC_GFN_CMD,
1350                         CT_GSSUBTYPE_CFGSERVER);
1351
1352         memset(gfn, 0, sizeof(fcgs_gfn_req_t));
1353         gfn->wwn = wwn;
1354
1355         return sizeof(struct ct_hdr_s) + sizeof(fcgs_gfn_req_t);
1356 }