drivers/scsi/bfa/fcbuild.h

   1 /*
   2  * Copyright (c) 2005-2009 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 <bfa_os_inc.h>
  25 #include <protocol/fc.h>
  26 #include <protocol/fcp.h>
  27 #include <protocol/ct.h>
  28 #include <defs/bfa_defs_port.h>
  29 #include <defs/bfa_defs_pport.h>
  30
  31 /*
  32  * Utility Macros/functions
  33  */
  34
  35 #define fcif_sof_set(_ifhdr, _sof)      (_ifhdr)->sof = FC_ ## _sof
  36 #define fcif_eof_set(_ifhdr, _eof)      (_ifhdr)->eof = FC_ ## _eof
  37
  38 #define wwn_is_equal(_wwn1, _wwn2)              \
  39         (memcmp(&(_wwn1), &(_wwn2), sizeof(wwn_t)) == 0)
  40
  41 #define fc_roundup(_l, _s) (((_l) + ((_s) - 1)) & ~((_s) - 1))
  42
  43 /*
  44  * Given the fc response length, this routine will return
  45  * the length of the actual payload bytes following the CT header.
  46  *
  47  * Assumes the input response length does not include the crc, eof, etc.
  48  */
  49 static inline   u32
  50 fc_get_ctresp_pyld_len(u32 resp_len)
  51 {
  52         return (resp_len - sizeof(struct ct_hdr_s));
  53 }
  54
  55 /*
  56  * Convert bfa speed to rpsc speed value.
  57  */
  58 static inline enum bfa_pport_speed
  59 fc_rpsc_operspeed_to_bfa_speed(enum fc_rpsc_op_speed_s speed)
  60 {
  61         switch (speed) {
  62
  63         case RPSC_OP_SPEED_1G:
  64                 return BFA_PPORT_SPEED_1GBPS;
  65
  66         case RPSC_OP_SPEED_2G:
  67                 return BFA_PPORT_SPEED_2GBPS;
  68
  69         case RPSC_OP_SPEED_4G:
  70                 return BFA_PPORT_SPEED_4GBPS;
  71
  72         case RPSC_OP_SPEED_8G:
  73                 return BFA_PPORT_SPEED_8GBPS;
  74
  75         default:
  76                 return BFA_PPORT_SPEED_UNKNOWN;
  77         }
  78 }
  79
  80 /*
  81  * Convert RPSC speed to bfa speed value.
  82  */
  83 static inline   enum fc_rpsc_op_speed_s
  84 fc_bfa_speed_to_rpsc_operspeed(enum bfa_pport_speed op_speed)
  85 {
  86         switch (op_speed) {
  87
  88         case BFA_PPORT_SPEED_1GBPS:
  89                 return RPSC_OP_SPEED_1G;
  90
  91         case BFA_PPORT_SPEED_2GBPS:
  92                 return RPSC_OP_SPEED_2G;
  93
  94         case BFA_PPORT_SPEED_4GBPS:
  95                 return RPSC_OP_SPEED_4G;
  96
  97         case BFA_PPORT_SPEED_8GBPS:
  98                 return RPSC_OP_SPEED_8G;
  99
 100         default:
 101                 return RPSC_OP_SPEED_NOT_EST;
 102         }
 103 }
 104 enum fc_parse_status {
 105         FC_PARSE_OK = 0,
 106         FC_PARSE_FAILURE = 1,
 107         FC_PARSE_BUSY = 2,
 108         FC_PARSE_LEN_INVAL,
 109         FC_PARSE_ACC_INVAL,
 110         FC_PARSE_PWWN_NOT_EQUAL,
 111         FC_PARSE_NWWN_NOT_EQUAL,
 112         FC_PARSE_RXSZ_INVAL,
 113         FC_PARSE_NOT_FCP,
 114         FC_PARSE_OPAFLAG_INVAL,
 115         FC_PARSE_RPAFLAG_INVAL,
 116         FC_PARSE_OPA_INVAL,
 117         FC_PARSE_RPA_INVAL,
 118
 119 };
 120
 121 struct fc_templates_s {
 122         struct fchs_s          fc_els_req;
 123         struct fchs_s          fc_bls_req;
 124         struct fc_logi_s      plogi;
 125         struct fc_rrq_s        rrq;
 126 };
 127
 128 void fcbuild_init(void);
 129
 130 u16 fc_flogi_build(struct fchs_s *fchs, struct fc_logi_s *flogi,
 131                         u32 s_id, u16 ox_id, wwn_t port_name,
 132                         wwn_t node_name, u16 pdu_size, u8 set_npiv,
 133                         u8 set_auth, u16 local_bb_credits);
 134 u16 fc_fdisc_build(struct fchs_s *buf, struct fc_logi_s *flogi,
 135                         u32 s_id, u16 ox_id, wwn_t port_name,
 136                         wwn_t node_name, u16 pdu_size);
 137 u16 fc_flogi_acc_build(struct fchs_s *fchs, struct fc_logi_s *flogi,
 138                         u32 s_id, u16 ox_id, wwn_t port_name,
 139                         wwn_t node_name, u16 pdu_size,
 140                         u16 local_bb_credits);
 141 u16 fc_plogi_build(struct fchs_s *fchs, void *pld, u32 d_id,
 142                         u32 s_id, u16 ox_id, wwn_t port_name,
 143                         wwn_t node_name, u16 pdu_size);
 144 enum fc_parse_status fc_plogi_parse(struct fchs_s *fchs);
 145 u16 fc_abts_build(struct fchs_s *buf, u32 d_id, u32 s_id,
 146                         u16 ox_id);
 147 enum fc_parse_status fc_abts_rsp_parse(struct fchs_s *buf, int len);
 148 u16 fc_rrq_build(struct fchs_s *buf, struct fc_rrq_s *rrq, u32 d_id,
 149                         u32 s_id, u16 ox_id, u16 rrq_oxid);
 150 enum fc_parse_status fc_rrq_rsp_parse(struct fchs_s *buf, int len);
 151 u16 fc_rspnid_build(struct fchs_s *fchs, void *pld, u32 s_id,
 152                         u16 ox_id, u8 *name);
 153 u16 fc_rftid_build(struct fchs_s *fchs, void *pld, u32 s_id,
 154                         u16 ox_id, enum bfa_port_role role);
 155 u16 fc_rftid_build_sol(struct fchs_s *fchs, void *pyld, u32 s_id,
 156                         u16 ox_id, u8 *fc4_bitmap,
 157                         u32 bitmap_size);
 158 u16 fc_rffid_build(struct fchs_s *fchs, void *pyld, u32 s_id,
 159                         u16 ox_id, u8 fc4_type, u8 fc4_ftrs);
 160 u16 fc_gidpn_build(struct fchs_s *fchs, void *pyld, u32 s_id,
 161                         u16 ox_id, wwn_t port_name);
 162 u16 fc_gpnid_build(struct fchs_s *fchs, void *pld, u32 s_id,
 163                         u16 ox_id, u32 port_id);
 164 u16 fc_scr_build(struct fchs_s *fchs, struct fc_scr_s *scr,
 165                         u8 set_br_reg, u32 s_id, u16 ox_id);
 166 u16 fc_plogi_acc_build(struct fchs_s *fchs, void *pld, u32 d_id,
 167                         u32 s_id, u16 ox_id,
 168                         wwn_t port_name, wwn_t node_name, u16 pdu_size);
 169
 170 u16 fc_adisc_build(struct fchs_s *fchs, struct fc_adisc_s *adisc,
 171                         u32 d_id, u32 s_id, u16 ox_id,
 172                         wwn_t port_name, wwn_t node_name);
 173 enum fc_parse_status fc_adisc_parse(struct fchs_s *fchs, void *pld,
 174                         u32 host_dap,
 175                         wwn_t node_name, wwn_t port_name);
 176 enum fc_parse_status fc_adisc_rsp_parse(struct fc_adisc_s *adisc, int len,
 177                         wwn_t port_name, wwn_t node_name);
 178 u16 fc_adisc_acc_build(struct fchs_s *fchs, struct fc_adisc_s *adisc,
 179                         u32 d_id, u32 s_id, u16 ox_id,
 180                         wwn_t port_name, wwn_t node_name);
 181 u16 fc_ls_rjt_build(struct fchs_s *fchs, struct fc_ls_rjt_s *ls_rjt,
 182                         u32 d_id, u32 s_id, u16 ox_id,
 183                         u8 reason_code, u8 reason_code_expl);
 184 u16 fc_ls_acc_build(struct fchs_s *fchs, struct fc_els_cmd_s *els_cmd,
 185                         u32 d_id, u32 s_id, u16 ox_id);
 186 u16 fc_prli_build(struct fchs_s *fchs, void *pld, u32 d_id,
 187                         u32 s_id, u16 ox_id);
 188 enum fc_parse_status fc_prli_rsp_parse(struct fc_prli_s *prli, int len);
 189
 190 u16 fc_prli_acc_build(struct fchs_s *fchs, void *pld, u32 d_id,
 191                         u32 s_id, u16 ox_id,
 192                         enum bfa_port_role role);
 193 u16 fc_rnid_build(struct fchs_s *fchs, struct fc_rnid_cmd_s *rnid,
 194                         u32 d_id, u32 s_id, u16 ox_id,
 195                         u32 data_format);
 196 u16 fc_rnid_acc_build(struct fchs_s *fchs, struct fc_rnid_acc_s *rnid_acc,
 197                         u32 d_id, u32 s_id, u16 ox_id,
 198                         u32 data_format,
 199                         struct fc_rnid_common_id_data_s *common_id_data,
 200                         struct fc_rnid_general_topology_data_s *
 201                         gen_topo_data);
 202 u16 fc_rpsc2_build(struct fchs_s *fchs, struct fc_rpsc2_cmd_s *rps2c,
 203                         u32 d_id, u32 s_id,
 204                         u32 *pid_list, u16 npids);
 205 u16 fc_rpsc_build(struct fchs_s *fchs, struct fc_rpsc_cmd_s *rpsc,
 206                         u32 d_id, u32 s_id, u16 ox_id);
 207 u16 fc_rpsc_acc_build(struct fchs_s *fchs, struct fc_rpsc_acc_s *rpsc_acc,
 208                         u32 d_id, u32 s_id, u16 ox_id,
 209                         struct fc_rpsc_speed_info_s *oper_speed);
 210 u16 fc_gid_ft_build(struct fchs_s *fchs, void *pld, u32 s_id,
 211                         u8 fc4_type);
 212 u16 fc_rpnid_build(struct fchs_s *fchs, void *pyld, u32 s_id,
 213                         u32 port_id, wwn_t port_name);
 214 u16 fc_rnnid_build(struct fchs_s *fchs, void *pyld, u32 s_id,
 215                         u32 port_id, wwn_t node_name);
 216 u16 fc_rcsid_build(struct fchs_s *fchs, void *pyld, u32 s_id,
 217                         u32 port_id, u32 cos);
 218 u16 fc_rptid_build(struct fchs_s *fchs, void *pyld, u32 s_id,
 219                         u32 port_id, u8 port_type);
 220 u16 fc_ganxt_build(struct fchs_s *fchs, void *pyld, u32 s_id,
 221                         u32 port_id);
 222 u16 fc_logo_build(struct fchs_s *fchs, struct fc_logo_s *logo,
 223                         u32 d_id, u32 s_id, u16 ox_id,
 224                         wwn_t port_name);
 225 u16 fc_logo_acc_build(struct fchs_s *fchs, void *pld, u32 d_id,
 226                         u32 s_id, u16 ox_id);
 227 u16 fc_fdmi_reqhdr_build(struct fchs_s *fchs, void *pyld, u32 s_id,
 228                         u16 cmd_code);
 229 u16 fc_gmal_req_build(struct fchs_s *fchs, void *pyld, u32 s_id,
 230                         wwn_t wwn);
 231 u16 fc_gfn_req_build(struct fchs_s *fchs, void *pyld, u32 s_id,
 232                         wwn_t wwn);
 233 void fc_get_fc4type_bitmask(u8 fc4_type, u8 *bit_mask);
 234 void fc_els_req_build(struct fchs_s *fchs, u32 d_id, u32 s_id,
 235                         u16 ox_id);
 236 enum fc_parse_status fc_els_rsp_parse(struct fchs_s *fchs, int len);
 237 enum fc_parse_status fc_plogi_rsp_parse(struct fchs_s *fchs, int len,
 238                          wwn_t port_name);
 239 enum fc_parse_status fc_prli_parse(struct fc_prli_s *prli);
 240 enum fc_parse_status fc_pdisc_parse(struct fchs_s *fchs, wwn_t node_name,
 241                         wwn_t port_name);
 242 u16 fc_ba_acc_build(struct fchs_s *fchs, struct fc_ba_acc_s *ba_acc,
 243                         u32 d_id, u32 s_id, u16 ox_id,
 244                         u16 rx_id);
 245 int fc_logout_params_pages(struct fchs_s *fc_frame, u8 els_code);
 246 u16 fc_tprlo_acc_build(struct fchs_s *fchs,
 247                         struct fc_tprlo_acc_s *tprlo_acc,
 248                         u32 d_id, u32 s_id, u16 ox_id,
 249                         int num_pages);
 250 u16 fc_prlo_acc_build(struct fchs_s *fchs, struct fc_prlo_acc_s *prlo_acc,
 251                         u32 d_id, u32 s_id, u16 ox_id,
 252                         int num_pages);
 253 u16 fc_logo_rsp_parse(struct fchs_s *fchs, int len);
 254 u16 fc_pdisc_build(struct fchs_s *fchs, u32 d_id, u32 s_id,
 255                         u16 ox_id, wwn_t port_name, wwn_t node_name,
 256                         u16 pdu_size);
 257 u16 fc_pdisc_rsp_parse(struct fchs_s *fchs, int len, wwn_t port_name);
 258 u16 fc_prlo_build(struct fchs_s *fchs, u32 d_id, u32 s_id,
 259                         u16 ox_id, int num_pages);
 260 u16 fc_prlo_rsp_parse(struct fchs_s *fchs, int len);
 261 u16 fc_tprlo_build(struct fchs_s *fchs, u32 d_id, u32 s_id,
 262                         u16 ox_id, int num_pages,
 263                         enum fc_tprlo_type tprlo_type, u32 tpr_id);
 264 u16 fc_tprlo_rsp_parse(struct fchs_s *fchs, int len);
 265 u16 fc_ba_rjt_build(struct fchs_s *fchs, u32 d_id, u32 s_id,
 266                         u16 ox_id, u32 reason_code,
 267                         u32 reason_expl);
 268 u16 fc_gnnid_build(struct fchs_s *fchs, void *pyld, u32 s_id,
 269                         u16 ox_id, u32 port_id);
 270 u16 fc_ct_rsp_parse(struct ct_hdr_s *cthdr);
 271 u16 fc_rscn_build(struct fchs_s *fchs, struct fc_rscn_pl_s *rscn,
 272                         u32 s_id, u16 ox_id);
 273 #endif