• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
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
fc_get_ctresp_pyld_len(u32 resp_len)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
fc_rpsc_operspeed_to_bfa_speed(enum fc_rpsc_op_speed 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_16G:
70 		return BFA_PORT_SPEED_16GBPS;
71 
72 	case RPSC_OP_SPEED_10G:
73 		return BFA_PORT_SPEED_10GBPS;
74 
75 	default:
76 		return BFA_PORT_SPEED_UNKNOWN;
77 	}
78 }
79 
80 /*
81  * Convert RPSC speed to bfa speed value.
82  */
83 static inline   enum fc_rpsc_op_speed
fc_bfa_speed_to_rpsc_operspeed(enum bfa_port_speed op_speed)84 fc_bfa_speed_to_rpsc_operspeed(enum bfa_port_speed op_speed)
85 {
86 	switch (op_speed) {
87 
88 	case BFA_PORT_SPEED_1GBPS:
89 		return RPSC_OP_SPEED_1G;
90 
91 	case BFA_PORT_SPEED_2GBPS:
92 		return RPSC_OP_SPEED_2G;
93 
94 	case BFA_PORT_SPEED_4GBPS:
95 		return RPSC_OP_SPEED_4G;
96 
97 	case BFA_PORT_SPEED_8GBPS:
98 		return RPSC_OP_SPEED_8G;
99 
100 	case BFA_PORT_SPEED_16GBPS:
101 		return RPSC_OP_SPEED_16G;
102 
103 	case BFA_PORT_SPEED_10GBPS:
104 		return RPSC_OP_SPEED_10G;
105 
106 	default:
107 		return RPSC_OP_SPEED_NOT_EST;
108 	}
109 }
110 
111 enum fc_parse_status {
112 	FC_PARSE_OK = 0,
113 	FC_PARSE_FAILURE = 1,
114 	FC_PARSE_BUSY = 2,
115 	FC_PARSE_LEN_INVAL,
116 	FC_PARSE_ACC_INVAL,
117 	FC_PARSE_PWWN_NOT_EQUAL,
118 	FC_PARSE_NWWN_NOT_EQUAL,
119 	FC_PARSE_RXSZ_INVAL,
120 	FC_PARSE_NOT_FCP,
121 	FC_PARSE_OPAFLAG_INVAL,
122 	FC_PARSE_RPAFLAG_INVAL,
123 	FC_PARSE_OPA_INVAL,
124 	FC_PARSE_RPA_INVAL,
125 
126 };
127 
128 struct fc_templates_s {
129 	struct fchs_s fc_els_req;
130 	struct fchs_s fc_bls_req;
131 	struct fc_logi_s plogi;
132 	struct fc_rrq_s rrq;
133 };
134 
135 void            fcbuild_init(void);
136 
137 u16        fc_flogi_build(struct fchs_s *fchs, struct fc_logi_s *flogi,
138 			u32 s_id, u16 ox_id, wwn_t port_name, wwn_t node_name,
139 			       u16 pdu_size, u8 set_npiv, u8 set_auth,
140 			       u16 local_bb_credits);
141 
142 u16        fc_fdisc_build(struct fchs_s *buf, struct fc_logi_s *flogi, u32 s_id,
143 			       u16 ox_id, wwn_t port_name, wwn_t node_name,
144 			       u16 pdu_size);
145 
146 u16        fc_flogi_acc_build(struct fchs_s *fchs, struct fc_logi_s *flogi,
147 				   u32 s_id, __be16 ox_id,
148 				   wwn_t port_name, wwn_t node_name,
149 				   u16 pdu_size,
150 				   u16 local_bb_credits, u8 bb_scn);
151 
152 u16        fc_plogi_build(struct fchs_s *fchs, void *pld, u32 d_id,
153 			       u32 s_id, u16 ox_id, wwn_t port_name,
154 			       wwn_t node_name, u16 pdu_size, u16 bb_cr);
155 
156 enum fc_parse_status fc_plogi_parse(struct fchs_s *fchs);
157 
158 u16        fc_abts_build(struct fchs_s *buf, u32 d_id, u32 s_id,
159 			      u16 ox_id);
160 
161 enum fc_parse_status fc_abts_rsp_parse(struct fchs_s *buf, int len);
162 
163 u16        fc_rrq_build(struct fchs_s *buf, struct fc_rrq_s *rrq, u32 d_id,
164 			     u32 s_id, u16 ox_id, u16 rrq_oxid);
165 enum fc_parse_status fc_rrq_rsp_parse(struct fchs_s *buf, int len);
166 
167 u16        fc_rspnid_build(struct fchs_s *fchs, void *pld, u32 s_id,
168 				u16 ox_id, u8 *name);
169 u16	fc_rsnn_nn_build(struct fchs_s *fchs, void *pld, u32 s_id,
170 				wwn_t node_name, u8 *name);
171 
172 u16        fc_rftid_build(struct fchs_s *fchs, void *pld, u32 s_id,
173 			       u16 ox_id, enum bfa_lport_role role);
174 
175 u16       fc_rftid_build_sol(struct fchs_s *fchs, void *pyld, u32 s_id,
176 				   u16 ox_id, u8 *fc4_bitmap,
177 				   u32 bitmap_size);
178 
179 u16	fc_rffid_build(struct fchs_s *fchs, void *pyld, u32 s_id,
180 			u16 ox_id, u8 fc4_type, u8 fc4_ftrs);
181 
182 u16        fc_gidpn_build(struct fchs_s *fchs, void *pyld, u32 s_id,
183 			       u16 ox_id, wwn_t port_name);
184 
185 u16        fc_gpnid_build(struct fchs_s *fchs, void *pld, u32 s_id,
186 			       u16 ox_id, u32 port_id);
187 
188 u16	fc_gs_rjt_build(struct fchs_s *fchs, struct ct_hdr_s *cthdr,
189 			u32 d_id, u32 s_id, u16 ox_id,
190 			u8 reason_code, u8 reason_code_expl);
191 
192 u16        fc_scr_build(struct fchs_s *fchs, struct fc_scr_s *scr,
193 			u8 set_br_reg, u32 s_id, u16 ox_id);
194 
195 u16        fc_plogi_acc_build(struct fchs_s *fchs, void *pld, u32 d_id,
196 				   u32 s_id, u16 ox_id,
197 				   wwn_t port_name, wwn_t node_name,
198 				   u16 pdu_size, u16 bb_cr);
199 
200 u16        fc_adisc_build(struct fchs_s *fchs, struct fc_adisc_s *adisc,
201 			u32 d_id, u32 s_id, __be16 ox_id, wwn_t port_name,
202 			       wwn_t node_name);
203 
204 enum fc_parse_status fc_adisc_parse(struct fchs_s *fchs, void *pld,
205 			u32 host_dap, wwn_t node_name, wwn_t port_name);
206 
207 enum fc_parse_status fc_adisc_rsp_parse(struct fc_adisc_s *adisc, int len,
208 				 wwn_t port_name, wwn_t node_name);
209 
210 u16        fc_adisc_acc_build(struct fchs_s *fchs, struct fc_adisc_s *adisc,
211 				   u32 d_id, u32 s_id, __be16 ox_id,
212 				   wwn_t port_name, wwn_t node_name);
213 u16        fc_ls_rjt_build(struct fchs_s *fchs, struct fc_ls_rjt_s *ls_rjt,
214 				u32 d_id, u32 s_id, __be16 ox_id,
215 				u8 reason_code, u8 reason_code_expl);
216 u16        fc_ls_acc_build(struct fchs_s *fchs, struct fc_els_cmd_s *els_cmd,
217 				u32 d_id, u32 s_id, __be16 ox_id);
218 u16        fc_prli_build(struct fchs_s *fchs, void *pld, u32 d_id,
219 			      u32 s_id, u16 ox_id);
220 
221 enum fc_parse_status fc_prli_rsp_parse(struct fc_prli_s *prli, int len);
222 
223 u16        fc_prli_acc_build(struct fchs_s *fchs, void *pld, u32 d_id,
224 				  u32 s_id, __be16 ox_id,
225 				  enum bfa_lport_role role);
226 
227 u16        fc_rnid_build(struct fchs_s *fchs, struct fc_rnid_cmd_s *rnid,
228 			      u32 d_id, u32 s_id, u16 ox_id,
229 			      u32 data_format);
230 
231 u16        fc_rnid_acc_build(struct fchs_s *fchs,
232 			struct fc_rnid_acc_s *rnid_acc, u32 d_id, u32 s_id,
233 			__be16 ox_id, u32 data_format,
234 			struct fc_rnid_common_id_data_s *common_id_data,
235 			struct fc_rnid_general_topology_data_s *gen_topo_data);
236 
237 u16	fc_rpsc2_build(struct fchs_s *fchs, struct fc_rpsc2_cmd_s *rps2c,
238 			u32 d_id, u32 s_id, u32 *pid_list, u16 npids);
239 u16        fc_rpsc_build(struct fchs_s *fchs, struct fc_rpsc_cmd_s *rpsc,
240 			      u32 d_id, u32 s_id, u16 ox_id);
241 u16        fc_rpsc_acc_build(struct fchs_s *fchs,
242 			struct fc_rpsc_acc_s *rpsc_acc, u32 d_id, u32 s_id,
243 			__be16 ox_id, struct fc_rpsc_speed_info_s *oper_speed);
244 u16        fc_gid_ft_build(struct fchs_s *fchs, void *pld, u32 s_id,
245 				u8 fc4_type);
246 
247 u16        fc_rpnid_build(struct fchs_s *fchs, void *pyld, u32 s_id,
248 			       u32 port_id, wwn_t port_name);
249 
250 u16        fc_rnnid_build(struct fchs_s *fchs, void *pyld, u32 s_id,
251 			       u32 port_id, wwn_t node_name);
252 
253 u16        fc_rcsid_build(struct fchs_s *fchs, void *pyld, u32 s_id,
254 			       u32 port_id, u32 cos);
255 
256 u16        fc_rptid_build(struct fchs_s *fchs, void *pyld, u32 s_id,
257 			       u32 port_id, u8 port_type);
258 
259 u16        fc_ganxt_build(struct fchs_s *fchs, void *pyld, u32 s_id,
260 			       u32 port_id);
261 
262 u16        fc_logo_build(struct fchs_s *fchs, struct fc_logo_s *logo, u32 d_id,
263 			      u32 s_id, u16 ox_id, wwn_t port_name);
264 
265 u16        fc_logo_acc_build(struct fchs_s *fchs, void *pld, u32 d_id,
266 				  u32 s_id, __be16 ox_id);
267 
268 u16        fc_fdmi_reqhdr_build(struct fchs_s *fchs, void *pyld, u32 s_id,
269 				     u16 cmd_code);
270 u16	fc_gmal_req_build(struct fchs_s *fchs, void *pyld, u32 s_id, wwn_t wwn);
271 u16	fc_gfn_req_build(struct fchs_s *fchs, void *pyld, u32 s_id, wwn_t wwn);
272 
273 void		fc_get_fc4type_bitmask(u8 fc4_type, u8 *bit_mask);
274 
275 void		fc_els_req_build(struct fchs_s *fchs, u32 d_id, u32 s_id,
276 					 __be16 ox_id);
277 
278 enum fc_parse_status	fc_els_rsp_parse(struct fchs_s *fchs, int len);
279 
280 enum fc_parse_status	fc_plogi_rsp_parse(struct fchs_s *fchs, int len,
281 					wwn_t port_name);
282 
283 enum fc_parse_status	fc_prli_parse(struct fc_prli_s *prli);
284 
285 enum fc_parse_status	fc_pdisc_parse(struct fchs_s *fchs, wwn_t node_name,
286 					wwn_t port_name);
287 
288 u16 fc_ba_acc_build(struct fchs_s *fchs, struct fc_ba_acc_s *ba_acc, u32 d_id,
289 		u32 s_id, __be16 ox_id, u16 rx_id);
290 
291 int fc_logout_params_pages(struct fchs_s *fc_frame, u8 els_code);
292 
293 u16 fc_tprlo_acc_build(struct fchs_s *fchs, struct fc_tprlo_acc_s *tprlo_acc,
294 		u32 d_id, u32 s_id, __be16 ox_id, int num_pages);
295 
296 u16 fc_prlo_acc_build(struct fchs_s *fchs, struct fc_prlo_acc_s *prlo_acc,
297 		u32 d_id, u32 s_id, __be16 ox_id, int num_pages);
298 
299 u16 fc_logo_rsp_parse(struct fchs_s *fchs, int len);
300 
301 u16 fc_pdisc_build(struct fchs_s *fchs, u32 d_id, u32 s_id,
302 		u16 ox_id, wwn_t port_name, wwn_t node_name,
303 		u16 pdu_size);
304 
305 u16 fc_pdisc_rsp_parse(struct fchs_s *fchs, int len, wwn_t port_name);
306 
307 u16 fc_prlo_build(struct fchs_s *fchs, u32 d_id, u32 s_id,
308 		u16 ox_id, int num_pages);
309 
310 u16 fc_prlo_rsp_parse(struct fchs_s *fchs, int len);
311 
312 u16 fc_tprlo_build(struct fchs_s *fchs, u32 d_id, u32 s_id,
313 		u16 ox_id, int num_pages, enum fc_tprlo_type tprlo_type,
314 		u32 tpr_id);
315 
316 u16 fc_tprlo_rsp_parse(struct fchs_s *fchs, int len);
317 
318 u16 fc_ba_rjt_build(struct fchs_s *fchs, u32 d_id, u32 s_id,
319 		__be16 ox_id, u32 reason_code, u32 reason_expl);
320 
321 u16 fc_gnnid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
322 		u32 port_id);
323 
324 u16 fc_ct_rsp_parse(struct ct_hdr_s *cthdr);
325 
326 u16 fc_rscn_build(struct fchs_s *fchs, struct fc_rscn_pl_s *rscn, u32 s_id,
327 		u16 ox_id);
328 #endif
329