drivers/scsi/bfa/include/bfa_svc.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 #ifndef __BFA_SVC_H__
  18 #define __BFA_SVC_H__
  19
  20 /*
  21  * forward declarations
  22  */
  23 struct bfa_fcxp_s;
  24
  25 #include <defs/bfa_defs_status.h>
  26 #include <defs/bfa_defs_pport.h>
  27 #include <defs/bfa_defs_rport.h>
  28 #include <defs/bfa_defs_qos.h>
  29 #include <defs/bfa_defs_fcport.h>
  30 #include <cs/bfa_sm.h>
  31 #include <bfa.h>
  32
  33 /**
  34  *              BFA rport information.
  35  */
  36 struct bfa_rport_info_s {
  37         u16        max_frmsz;   /*  max rcv pdu size               */
  38         u32        pid:24,              /*  remote port ID                 */
  39                         lp_tag:8;       /*  tag                     */
  40         u32        local_pid:24,        /*  local port ID                   */
  41                         cisc:8;         /*  CIRO supported                  */
  42         u8         fc_class;    /*  supported FC classes. enum fc_cos */
  43         u8         vf_en;               /*  virtual fabric enable          */
  44         u16        vf_id;               /*  virtual fabric ID              */
  45         enum bfa_pport_speed speed;     /*  Rport's current speed           */
  46 };
  47
  48 /**
  49  * BFA rport data structure
  50  */
  51 struct bfa_rport_s {
  52         struct list_head        qe;       /*  queue element */
  53         bfa_sm_t              sm;         /*  state machine */
  54         struct bfa_s          *bfa;       /*  backpointer to BFA */
  55         void                  *rport_drv; /*  fcs/driver rport object */
  56         u16              fw_handle; /*  firmware rport handle */
  57         u16              rport_tag; /*  BFA rport tag */
  58         struct bfa_rport_info_s rport_info; /*  rport info from fcs/driver */
  59         struct bfa_reqq_wait_s reqq_wait; /*  to wait for room in reqq */
  60         struct bfa_cb_qe_s    hcb_qe;    /*  BFA callback qelem */
  61         struct bfa_rport_hal_stats_s stats; /*  BFA rport statistics  */
  62         struct bfa_rport_qos_attr_s  qos_attr;
  63         union a {
  64                 bfa_status_t    status;  /*  f/w status */
  65                 void            *fw_msg; /*  QoS scn event */
  66         } event_arg;
  67 };
  68 #define BFA_RPORT_FC_COS(_rport)        ((_rport)->rport_info.fc_class)
  69
  70 /**
  71  * Send completion callback.
  72  */
  73 typedef void (*bfa_cb_fcxp_send_t) (void *bfad_fcxp, struct bfa_fcxp_s *fcxp,
  74                         void *cbarg, enum bfa_status req_status,
  75                         u32 rsp_len, u32 resid_len,
  76                         struct fchs_s *rsp_fchs);
  77
  78 /**
  79  * BFA fcxp allocation (asynchronous)
  80  */
  81 typedef void (*bfa_fcxp_alloc_cbfn_t) (void *cbarg, struct bfa_fcxp_s *fcxp);
  82
  83 struct bfa_fcxp_wqe_s {
  84         struct list_head         qe;
  85         bfa_fcxp_alloc_cbfn_t  alloc_cbfn;
  86         void           *alloc_cbarg;
  87 };
  88
  89 typedef u64 (*bfa_fcxp_get_sgaddr_t) (void *bfad_fcxp, int sgeid);
  90 typedef u32 (*bfa_fcxp_get_sglen_t) (void *bfad_fcxp, int sgeid);
  91
  92 #define BFA_UF_BUFSZ    (2 * 1024 + 256)
  93
  94 /**
  95  * @todo private
  96  */
  97 struct bfa_uf_buf_s {
  98         u8         d[BFA_UF_BUFSZ];
  99 };
 100
 101
 102 struct bfa_uf_s {
 103         struct list_head        qe;             /*  queue element         */
 104         struct bfa_s    *bfa;           /*  bfa instance          */
 105         u16        uf_tag;              /*  identifying tag fw msgs     */
 106         u16        vf_id;
 107         u16        src_rport_handle;
 108         u16        rsvd;
 109         u8              *data_ptr;
 110         u16        data_len;    /*  actual receive length         */
 111         u16        pb_len;              /*  posted buffer length          */
 112         void            *buf_kva;       /*  buffer virtual address        */
 113         u64        buf_pa;              /*  buffer physical address       */
 114         struct bfa_cb_qe_s    hcb_qe;   /*  comp: BFA comp qelem          */
 115         struct bfa_sge_s        sges[BFI_SGE_INLINE_MAX];
 116 };
 117
 118 typedef void (*bfa_cb_pport_t) (void *cbarg, enum bfa_status status);
 119
 120 /**
 121  * bfa lport login/logout service interface
 122  */
 123 struct bfa_lps_s {
 124         struct list_head        qe;             /*  queue element */
 125         struct bfa_s    *bfa;           /*  parent bfa instance */
 126         bfa_sm_t        sm;             /*  finite state machine        */
 127         u8              lp_tag;         /*  lport tag                   */
 128         u8              reqq;           /*  lport request queue */
 129         u8              alpa;           /*  ALPA for loop topologies    */
 130         u32     lp_pid;         /*  lport port ID               */
 131         bfa_boolean_t   fdisc;          /*  send FDISC instead of FLOGI  */
 132         bfa_boolean_t   auth_en;        /*  enable authentication       */
 133         bfa_boolean_t   auth_req;       /*  authentication required     */
 134         bfa_boolean_t   npiv_en;        /*  NPIV is allowed by peer     */
 135         bfa_boolean_t   fport;          /*  attached peer is F_PORT     */
 136         bfa_boolean_t   brcd_switch;/*  attached peer is brcd switch    */
 137         bfa_status_t    status;         /*  login status                */
 138         u16     pdusz;          /*  max receive PDU size        */
 139         u16     pr_bbcred;      /*  BB_CREDIT from peer         */
 140         u8              lsrjt_rsn;      /*  LSRJT reason                */
 141         u8              lsrjt_expl;     /*  LSRJT explanation           */
 142         wwn_t           pwwn;           /*  port wwn of lport           */
 143         wwn_t           nwwn;           /*  node wwn of lport           */
 144         wwn_t           pr_pwwn;        /*  port wwn of lport peer      */
 145         wwn_t           pr_nwwn;        /*  node wwn of lport peer      */
 146         mac_t           lp_mac;         /*  fpma/spma MAC for lport     */
 147         mac_t           fcf_mac;        /*  FCF MAC of lport            */
 148         struct bfa_reqq_wait_s  wqe;    /*  request wait queue element  */
 149         void            *uarg;          /*  user callback arg           */
 150         struct bfa_cb_qe_s hcb_qe;      /*  comp: callback qelem        */
 151         struct bfi_lps_login_rsp_s *loginrsp;
 152         bfa_eproto_status_t     ext_status;
 153 };
 154
 155 #define BFA_FCPORT(_bfa)        (&((_bfa)->modules.port))
 156
 157 /*
 158  * bfa pport API functions
 159  */
 160 bfa_status_t bfa_fcport_enable(struct bfa_s *bfa);
 161 bfa_status_t bfa_fcport_disable(struct bfa_s *bfa);
 162 bfa_status_t bfa_fcport_cfg_speed(struct bfa_s *bfa,
 163                         enum bfa_pport_speed speed);
 164 enum bfa_pport_speed bfa_fcport_get_speed(struct bfa_s *bfa);
 165 bfa_status_t bfa_fcport_cfg_topology(struct bfa_s *bfa,
 166                         enum bfa_pport_topology topo);
 167 enum bfa_pport_topology bfa_fcport_get_topology(struct bfa_s *bfa);
 168 bfa_status_t bfa_fcport_cfg_hardalpa(struct bfa_s *bfa, u8 alpa);
 169 bfa_boolean_t bfa_fcport_get_hardalpa(struct bfa_s *bfa, u8 *alpa);
 170 u8 bfa_fcport_get_myalpa(struct bfa_s *bfa);
 171 bfa_status_t bfa_fcport_clr_hardalpa(struct bfa_s *bfa);
 172 bfa_status_t bfa_fcport_cfg_maxfrsize(struct bfa_s *bfa, u16 maxsize);
 173 u16 bfa_fcport_get_maxfrsize(struct bfa_s *bfa);
 174 u32 bfa_fcport_mypid(struct bfa_s *bfa);
 175 u8 bfa_fcport_get_rx_bbcredit(struct bfa_s *bfa);
 176 bfa_status_t bfa_fcport_trunk_enable(struct bfa_s *bfa, u8 bitmap);
 177 bfa_status_t bfa_fcport_trunk_disable(struct bfa_s *bfa);
 178 bfa_boolean_t bfa_fcport_trunk_query(struct bfa_s *bfa, u32 *bitmap);
 179 void bfa_fcport_get_attr(struct bfa_s *bfa, struct bfa_pport_attr_s *attr);
 180 wwn_t bfa_fcport_get_wwn(struct bfa_s *bfa, bfa_boolean_t node);
 181 void bfa_fcport_event_register(struct bfa_s *bfa,
 182                         void (*event_cbfn) (void *cbarg,
 183                         bfa_pport_event_t event), void *event_cbarg);
 184 bfa_boolean_t bfa_fcport_is_disabled(struct bfa_s *bfa);
 185 void bfa_fcport_cfg_qos(struct bfa_s *bfa, bfa_boolean_t on_off);
 186 void bfa_fcport_cfg_ratelim(struct bfa_s *bfa, bfa_boolean_t on_off);
 187 bfa_status_t bfa_fcport_cfg_ratelim_speed(struct bfa_s *bfa,
 188                         enum bfa_pport_speed speed);
 189 enum bfa_pport_speed bfa_fcport_get_ratelim_speed(struct bfa_s *bfa);
 190
 191 void bfa_fcport_set_tx_bbcredit(struct bfa_s *bfa, u16 tx_bbcredit);
 192 void bfa_fcport_busy(struct bfa_s *bfa, bfa_boolean_t status);
 193 void bfa_fcport_beacon(struct bfa_s *bfa, bfa_boolean_t beacon,
 194                         bfa_boolean_t link_e2e_beacon);
 195 void bfa_cb_pport_event(void *cbarg, bfa_pport_event_t event);
 196 void bfa_fcport_qos_get_attr(struct bfa_s *bfa,
 197                         struct bfa_qos_attr_s *qos_attr);
 198 void bfa_fcport_qos_get_vc_attr(struct bfa_s *bfa,
 199                         struct bfa_qos_vc_attr_s *qos_vc_attr);
 200 bfa_status_t bfa_fcport_get_qos_stats(struct bfa_s *bfa,
 201                         union bfa_fcport_stats_u *stats,
 202                         bfa_cb_pport_t cbfn, void *cbarg);
 203 bfa_status_t bfa_fcport_clear_qos_stats(struct bfa_s *bfa, bfa_cb_pport_t cbfn,
 204                         void *cbarg);
 205 bfa_status_t bfa_fcport_get_fcoe_stats(struct bfa_s *bfa,
 206                         union bfa_fcport_stats_u *stats,
 207                         bfa_cb_pport_t cbfn, void *cbarg);
 208 bfa_status_t bfa_fcport_clear_fcoe_stats(struct bfa_s *bfa, bfa_cb_pport_t cbfn,
 209                         void *cbarg);
 210
 211 bfa_boolean_t     bfa_fcport_is_ratelim(struct bfa_s *bfa);
 212 bfa_boolean_t   bfa_fcport_is_linkup(struct bfa_s *bfa);
 213 bfa_status_t bfa_fcport_get_stats(struct bfa_s *bfa,
 214                 union bfa_fcport_stats_u *stats,
 215                 bfa_cb_pport_t cbfn, void *cbarg);
 216 bfa_status_t bfa_fcport_clear_stats(struct bfa_s *bfa, bfa_cb_pport_t cbfn,
 217                 void *cbarg);
 218
 219 /*
 220  * bfa rport API functions
 221  */
 222 struct bfa_rport_s *bfa_rport_create(struct bfa_s *bfa, void *rport_drv);
 223 void bfa_rport_delete(struct bfa_rport_s *rport);
 224 void bfa_rport_online(struct bfa_rport_s *rport,
 225                         struct bfa_rport_info_s *rport_info);
 226 void bfa_rport_offline(struct bfa_rport_s *rport);
 227 void bfa_rport_speed(struct bfa_rport_s *rport, enum bfa_pport_speed speed);
 228 void bfa_rport_get_stats(struct bfa_rport_s *rport,
 229                         struct bfa_rport_hal_stats_s *stats);
 230 void bfa_rport_clear_stats(struct bfa_rport_s *rport);
 231 void bfa_cb_rport_online(void *rport);
 232 void bfa_cb_rport_offline(void *rport);
 233 void bfa_cb_rport_qos_scn_flowid(void *rport,
 234                         struct bfa_rport_qos_attr_s old_qos_attr,
 235                         struct bfa_rport_qos_attr_s new_qos_attr);
 236 void bfa_cb_rport_qos_scn_prio(void *rport,
 237                         struct bfa_rport_qos_attr_s old_qos_attr,
 238                         struct bfa_rport_qos_attr_s new_qos_attr);
 239 void bfa_rport_get_qos_attr(struct bfa_rport_s *rport,
 240                         struct bfa_rport_qos_attr_s *qos_attr);
 241
 242 /*
 243  * bfa fcxp API functions
 244  */
 245 struct bfa_fcxp_s *bfa_fcxp_alloc(void *bfad_fcxp, struct bfa_s *bfa,
 246                         int nreq_sgles, int nrsp_sgles,
 247                         bfa_fcxp_get_sgaddr_t get_req_sga,
 248                         bfa_fcxp_get_sglen_t get_req_sglen,
 249                         bfa_fcxp_get_sgaddr_t get_rsp_sga,
 250                         bfa_fcxp_get_sglen_t get_rsp_sglen);
 251 void bfa_fcxp_alloc_wait(struct bfa_s *bfa, struct bfa_fcxp_wqe_s *wqe,
 252                         bfa_fcxp_alloc_cbfn_t alloc_cbfn, void *cbarg);
 253 void bfa_fcxp_walloc_cancel(struct bfa_s *bfa,
 254                         struct bfa_fcxp_wqe_s *wqe);
 255 void bfa_fcxp_discard(struct bfa_fcxp_s *fcxp);
 256
 257 void *bfa_fcxp_get_reqbuf(struct bfa_fcxp_s *fcxp);
 258 void *bfa_fcxp_get_rspbuf(struct bfa_fcxp_s *fcxp);
 259
 260 void bfa_fcxp_free(struct bfa_fcxp_s *fcxp);
 261
 262 void bfa_fcxp_send(struct bfa_fcxp_s *fcxp,
 263                         struct bfa_rport_s *rport, u16 vf_id, u8 lp_tag,
 264                         bfa_boolean_t cts, enum fc_cos cos,
 265                         u32 reqlen, struct fchs_s *fchs,
 266                         bfa_cb_fcxp_send_t cbfn,
 267                         void *cbarg,
 268                         u32 rsp_maxlen, u8 rsp_timeout);
 269 bfa_status_t bfa_fcxp_abort(struct bfa_fcxp_s *fcxp);
 270 u32        bfa_fcxp_get_reqbufsz(struct bfa_fcxp_s *fcxp);
 271 u32     bfa_fcxp_get_maxrsp(struct bfa_s *bfa);
 272
 273 static inline void *
 274 bfa_uf_get_frmbuf(struct bfa_uf_s *uf)
 275 {
 276         return uf->data_ptr;
 277 }
 278
 279 static inline   u16
 280 bfa_uf_get_frmlen(struct bfa_uf_s *uf)
 281 {
 282         return uf->data_len;
 283 }
 284
 285 /**
 286  *      Callback prototype for unsolicited frame receive handler.
 287  *
 288  * @param[in]           cbarg           callback arg for receive handler
 289  * @param[in]           uf              unsolicited frame descriptor
 290  *
 291  * @return None
 292  */
 293 typedef void (*bfa_cb_uf_recv_t) (void *cbarg, struct bfa_uf_s *uf);
 294
 295 /*
 296  * bfa uf API functions
 297  */
 298 void bfa_uf_recv_register(struct bfa_s *bfa, bfa_cb_uf_recv_t ufrecv,
 299                         void *cbarg);
 300 void bfa_uf_free(struct bfa_uf_s *uf);
 301
 302 /**
 303  * bfa lport service api
 304  */
 305
 306 u32     bfa_lps_get_max_vport(struct bfa_s *bfa);
 307 struct bfa_lps_s *bfa_lps_alloc(struct bfa_s *bfa);
 308 void bfa_lps_delete(struct bfa_lps_s *lps);
 309 void bfa_lps_discard(struct bfa_lps_s *lps);
 310 void bfa_lps_flogi(struct bfa_lps_s *lps, void *uarg, u8 alpa, u16 pdusz,
 311                    wwn_t pwwn, wwn_t nwwn, bfa_boolean_t auth_en);
 312 void bfa_lps_fdisc(struct bfa_lps_s *lps, void *uarg, u16 pdusz, wwn_t pwwn,
 313                    wwn_t nwwn);
 314 void bfa_lps_flogo(struct bfa_lps_s *lps);
 315 void bfa_lps_fdisclogo(struct bfa_lps_s *lps);
 316 u8 bfa_lps_get_tag(struct bfa_lps_s *lps);
 317 bfa_boolean_t bfa_lps_is_npiv_en(struct bfa_lps_s *lps);
 318 bfa_boolean_t bfa_lps_is_fport(struct bfa_lps_s *lps);
 319 bfa_boolean_t bfa_lps_is_brcd_fabric(struct bfa_lps_s *lps);
 320 bfa_boolean_t bfa_lps_is_authreq(struct bfa_lps_s *lps);
 321 bfa_eproto_status_t bfa_lps_get_extstatus(struct bfa_lps_s *lps);
 322 u32 bfa_lps_get_pid(struct bfa_lps_s *lps);
 323 u8 bfa_lps_get_tag_from_pid(struct bfa_s *bfa, u32 pid);
 324 u16 bfa_lps_get_peer_bbcredit(struct bfa_lps_s *lps);
 325 wwn_t bfa_lps_get_peer_pwwn(struct bfa_lps_s *lps);
 326 wwn_t bfa_lps_get_peer_nwwn(struct bfa_lps_s *lps);
 327 u8 bfa_lps_get_lsrjt_rsn(struct bfa_lps_s *lps);
 328 u8 bfa_lps_get_lsrjt_expl(struct bfa_lps_s *lps);
 329 mac_t bfa_lps_get_lp_mac(struct bfa_lps_s *lps);
 330 void bfa_cb_lps_flogi_comp(void *bfad, void *uarg, bfa_status_t status);
 331 void bfa_cb_lps_flogo_comp(void *bfad, void *uarg);
 332 void bfa_cb_lps_fdisc_comp(void *bfad, void *uarg, bfa_status_t status);
 333 void bfa_cb_lps_fdisclogo_comp(void *bfad, void *uarg);
 334 void bfa_cb_lps_cvl_event(void *bfad, void *uarg);
 335
 336 #endif /* __BFA_SVC_H__ */
 337