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 317