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 */ 43static inline u32 44fc_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 */ 52static inline enum bfa_port_speed 53fc_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 */ 83static inline enum fc_rpsc_op_speed 84fc_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 111enum 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 128struct 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 135void fcbuild_init(void); 136 137u16 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 142u16 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 146u16 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 152u16 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 156enum fc_parse_status fc_plogi_parse(struct fchs_s *fchs); 157 158u16 fc_abts_build(struct fchs_s *buf, u32 d_id, u32 s_id, 159 u16 ox_id); 160 161enum fc_parse_status fc_abts_rsp_parse(struct fchs_s *buf, int len); 162 163u16 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); 165enum fc_parse_status fc_rrq_rsp_parse(struct fchs_s *buf, int len); 166 167u16 fc_rspnid_build(struct fchs_s *fchs, void *pld, u32 s_id, 168 u16 ox_id, u8 *name); 169u16 fc_rsnn_nn_build(struct fchs_s *fchs, void *pld, u32 s_id, 170 wwn_t node_name, u8 *name); 171 172u16 fc_rftid_build(struct fchs_s *fchs, void *pld, u32 s_id, 173 u16 ox_id, enum bfa_lport_role role); 174 175u16 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 179u16 fc_rffid_build(struct fchs_s *fchs, void *pyld, u32 s_id, 180 u16 ox_id, u8 fc4_type, u8 fc4_ftrs); 181 182u16 fc_gidpn_build(struct fchs_s *fchs, void *pyld, u32 s_id, 183 u16 ox_id, wwn_t port_name); 184 185u16 fc_gpnid_build(struct fchs_s *fchs, void *pld, u32 s_id, 186 u16 ox_id, u32 port_id); 187 188u16 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 192u16 fc_scr_build(struct fchs_s *fchs, struct fc_scr_s *scr, 193 u8 set_br_reg, u32 s_id, u16 ox_id); 194 195u16 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 200u16 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 204enum 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 207enum fc_parse_status fc_adisc_rsp_parse(struct fc_adisc_s *adisc, int len, 208 wwn_t port_name, wwn_t node_name); 209 210u16 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); 213u16 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); 216u16 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); 218u16 fc_prli_build(struct fchs_s *fchs, void *pld, u32 d_id, 219 u32 s_id, u16 ox_id); 220 221enum fc_parse_status fc_prli_rsp_parse(struct fc_prli_s *prli, int len); 222 223u16 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 227u16 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 231u16 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 237u16 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); 239u16 fc_rpsc_build(struct fchs_s *fchs, struct fc_rpsc_cmd_s *rpsc, 240 u32 d_id, u32 s_id, u16 ox_id); 241u16 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); 244u16 fc_gid_ft_build(struct fchs_s *fchs, void *pld, u32 s_id, 245 u8 fc4_type); 246 247u16 fc_rpnid_build(struct fchs_s *fchs, void *pyld, u32 s_id, 248 u32 port_id, wwn_t port_name); 249 250u16 fc_rnnid_build(struct fchs_s *fchs, void *pyld, u32 s_id, 251 u32 port_id, wwn_t node_name); 252 253u16 fc_rcsid_build(struct fchs_s *fchs, void *pyld, u32 s_id, 254 u32 port_id, u32 cos); 255 256u16 fc_rptid_build(struct fchs_s *fchs, void *pyld, u32 s_id, 257 u32 port_id, u8 port_type); 258 259u16 fc_ganxt_build(struct fchs_s *fchs, void *pyld, u32 s_id, 260 u32 port_id); 261 262u16 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 265u16 fc_logo_acc_build(struct fchs_s *fchs, void *pld, u32 d_id, 266 u32 s_id, __be16 ox_id); 267 268u16 fc_fdmi_reqhdr_build(struct fchs_s *fchs, void *pyld, u32 s_id, 269 u16 cmd_code); 270u16 fc_gmal_req_build(struct fchs_s *fchs, void *pyld, u32 s_id, wwn_t wwn); 271u16 fc_gfn_req_build(struct fchs_s *fchs, void *pyld, u32 s_id, wwn_t wwn); 272 273void fc_get_fc4type_bitmask(u8 fc4_type, u8 *bit_mask); 274 275void fc_els_req_build(struct fchs_s *fchs, u32 d_id, u32 s_id, 276 __be16 ox_id); 277 278enum fc_parse_status fc_els_rsp_parse(struct fchs_s *fchs, int len); 279 280enum fc_parse_status fc_plogi_rsp_parse(struct fchs_s *fchs, int len, 281 wwn_t port_name); 282 283enum fc_parse_status fc_prli_parse(struct fc_prli_s *prli); 284 285enum fc_parse_status fc_pdisc_parse(struct fchs_s *fchs, wwn_t node_name, 286 wwn_t port_name); 287 288u16 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 291int fc_logout_params_pages(struct fchs_s *fc_frame, u8 els_code); 292 293u16 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 296u16 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 299u16 fc_logo_rsp_parse(struct fchs_s *fchs, int len); 300 301u16 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 305u16 fc_pdisc_rsp_parse(struct fchs_s *fchs, int len, wwn_t port_name); 306 307u16 fc_prlo_build(struct fchs_s *fchs, u32 d_id, u32 s_id, 308 u16 ox_id, int num_pages); 309 310u16 fc_prlo_rsp_parse(struct fchs_s *fchs, int len); 311 312u16 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 316u16 fc_tprlo_rsp_parse(struct fchs_s *fchs, int len); 317 318u16 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 321u16 fc_gnnid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id, 322 u32 port_id); 323 324u16 fc_ct_rsp_parse(struct ct_hdr_s *cthdr); 325 326u16 fc_rscn_build(struct fchs_s *fchs, struct fc_rscn_pl_s *rscn, u32 s_id, 327 u16 ox_id); 328#endif 329