kernel/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_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
  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