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