release/src-rt-6.x.4708/linux/linux-2.6.36/drivers/scsi/bfa/include/fcs/bfa_fcs_lport.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 /**
  19  *  bfa_fcs_port.h BFA fcs port module public interface
  20  */
  21
  22 #ifndef __BFA_FCS_PORT_H__
  23 #define __BFA_FCS_PORT_H__
  24
  25 #include <defs/bfa_defs_status.h>
  26 #include <defs/bfa_defs_port.h>
  27 #include <defs/bfa_defs_pport.h>
  28 #include <defs/bfa_defs_rport.h>
  29 #include <cs/bfa_q.h>
  30 #include <bfa_svc.h>
  31 #include <cs/bfa_wc.h>
  32
  33 struct bfa_fcs_s;
  34 struct bfa_fcs_fabric_s;
  35
  36 /*
  37  * Maximum Rports supported per port (physical/logical).
  38  */
  39 #define BFA_FCS_MAX_RPORTS_SUPP  256    /* @todo : tentative value */
  40
  41
  42 struct bfa_fcs_port_ns_s {
  43         bfa_sm_t        sm;             /*  state machine */
  44         struct bfa_timer_s timer;
  45         struct bfa_fcs_port_s *port;    /*  parent port */
  46         struct bfa_fcxp_s *fcxp;
  47         struct bfa_fcxp_wqe_s fcxp_wqe;
  48 };
  49
  50
  51 struct bfa_fcs_port_scn_s {
  52         bfa_sm_t        sm;             /*  state machine */
  53         struct bfa_timer_s timer;
  54         struct bfa_fcs_port_s *port;    /*  parent port */
  55         struct bfa_fcxp_s *fcxp;
  56         struct bfa_fcxp_wqe_s fcxp_wqe;
  57 };
  58
  59
  60 struct bfa_fcs_port_fdmi_s {
  61         bfa_sm_t        sm;             /*  state machine */
  62         struct bfa_timer_s timer;
  63         struct bfa_fcs_port_ms_s *ms;   /*  parent ms */
  64         struct bfa_fcxp_s *fcxp;
  65         struct bfa_fcxp_wqe_s fcxp_wqe;
  66         u8         retry_cnt;   /*  retry count */
  67         u8                 rsvd[3];
  68 };
  69
  70
  71 struct bfa_fcs_port_ms_s {
  72         bfa_sm_t        sm;             /*  state machine */
  73         struct bfa_timer_s timer;
  74         struct bfa_fcs_port_s *port;    /*  parent port */
  75         struct bfa_fcxp_s *fcxp;
  76         struct bfa_fcxp_wqe_s fcxp_wqe;
  77         struct bfa_fcs_port_fdmi_s fdmi;        /*  FDMI component of MS */
  78         u8         retry_cnt;   /*  retry count */
  79         u8                 rsvd[3];
  80 };
  81
  82
  83 struct bfa_fcs_port_fab_s {
  84         struct bfa_fcs_port_ns_s ns;    /*  NS component of port */
  85         struct bfa_fcs_port_scn_s scn;  /*  scn component of port */
  86         struct bfa_fcs_port_ms_s ms;    /*  MS component of port */
  87 };
  88
  89
  90
  91 #define         MAX_ALPA_COUNT          127
  92
  93 struct bfa_fcs_port_loop_s {
  94         u8         num_alpa;    /*  Num of ALPA entries in the map */
  95         u8         alpa_pos_map[MAX_ALPA_COUNT];        /*  ALPA Positional
  96                                                          *Map */
  97         struct bfa_fcs_port_s *port;    /*  parent port */
  98 };
  99
 100
 101
 102 struct bfa_fcs_port_n2n_s {
 103         u32        rsvd;
 104         u16        reply_oxid;  /*  ox_id from the req flogi to be
 105                                          *used in flogi acc */
 106         wwn_t           rem_port_wwn;   /*  Attached port's wwn */
 107 };
 108
 109
 110 union bfa_fcs_port_topo_u {
 111         struct bfa_fcs_port_fab_s pfab;
 112         struct bfa_fcs_port_loop_s ploop;
 113         struct bfa_fcs_port_n2n_s pn2n;
 114 };
 115
 116
 117 struct bfa_fcs_port_s {
 118         struct list_head         qe;    /*  used by port/vport */
 119         bfa_sm_t               sm;      /*  state machine */
 120         struct bfa_fcs_fabric_s *fabric;/*  parent fabric */
 121         struct bfa_port_cfg_s  port_cfg;/*  port configuration */
 122         struct bfa_timer_s link_timer;  /*  timer for link offline */
 123         u32 pid:24;     /*  FC address */
 124         u8  lp_tag;     /*  lport tag */
 125         u16 num_rports; /*  Num of r-ports */
 126         struct list_head rport_q;       /*  queue of discovered r-ports */
 127         struct bfa_fcs_s *fcs;  /*  FCS instance */
 128         union bfa_fcs_port_topo_u port_topo;    /*  fabric/loop/n2n details */
 129         struct bfad_port_s *bfad_port;  /*  driver peer instance */
 130         struct bfa_fcs_vport_s *vport;  /*  NULL for base ports */
 131         struct bfa_fcxp_s *fcxp;
 132         struct bfa_fcxp_wqe_s fcxp_wqe;
 133         struct bfa_port_stats_s stats;
 134         struct bfa_wc_s        wc;      /*  waiting counter for events */
 135 };
 136
 137 #define bfa_fcs_lport_t struct bfa_fcs_port_s
 138
 139 /**
 140  * Symbolic Name related defines
 141  *  Total bytes 255.
 142  *  Physical Port's symbolic name 128 bytes.
 143  *  For Vports, Vport's symbolic name is appended to the Physical port's
 144  *  Symbolic Name.
 145  *
 146  *  Physical Port's symbolic name Format : (Total 128 bytes)
 147  *  Adapter Model number/name : 12 bytes
 148  *  Driver Version     : 10 bytes
 149  *  Host Machine Name  : 30 bytes
 150  *      Host OS Info       : 48 bytes
 151  *      Host OS PATCH Info : 16 bytes
 152  *  ( remaining 12 bytes reserved to be used for separator)
 153  */
 154 #define BFA_FCS_PORT_SYMBNAME_SEPARATOR                 " | "
 155
 156 #define BFA_FCS_PORT_SYMBNAME_MODEL_SZ                  12
 157 #define BFA_FCS_PORT_SYMBNAME_VERSION_SZ                10
 158 #define BFA_FCS_PORT_SYMBNAME_MACHINENAME_SZ    30
 159 #define BFA_FCS_PORT_SYMBNAME_OSINFO_SZ                 48
 160 #define BFA_FCS_PORT_SYMBNAME_OSPATCH_SZ                16
 161
 162 /**
 163  * Get FC port ID for a logical port.
 164  */
 165 #define bfa_fcs_port_get_fcid(_lport)   ((_lport)->pid)
 166 #define bfa_fcs_port_get_pwwn(_lport)   ((_lport)->port_cfg.pwwn)
 167 #define bfa_fcs_port_get_nwwn(_lport)   ((_lport)->port_cfg.nwwn)
 168 #define bfa_fcs_port_get_psym_name(_lport)      ((_lport)->port_cfg.sym_name)
 169 #define bfa_fcs_port_is_initiator(_lport)       \
 170                         ((_lport)->port_cfg.roles & BFA_PORT_ROLE_FCP_IM)
 171 #define bfa_fcs_port_is_target(_lport)  \
 172                         ((_lport)->port_cfg.roles & BFA_PORT_ROLE_FCP_TM)
 173 #define bfa_fcs_port_get_nrports(_lport)        \
 174                         ((_lport) ? (_lport)->num_rports : 0)
 175
 176 static inline struct bfad_port_s *
 177 bfa_fcs_port_get_drvport(struct bfa_fcs_port_s *port)
 178 {
 179         return port->bfad_port;
 180 }
 181
 182
 183 #define bfa_fcs_port_get_opertype(_lport)       ((_lport)->fabric->oper_type)
 184
 185
 186 #define bfa_fcs_port_get_fabric_name(_lport)    ((_lport)->fabric->fabric_name)
 187
 188
 189 #define bfa_fcs_port_get_fabric_ipaddr(_lport) \
 190                 ((_lport)->fabric->fabric_ip_addr)
 191
 192 /**
 193  * bfa fcs port public functions
 194  */
 195 void bfa_fcs_cfg_base_port(struct bfa_fcs_s *fcs,
 196                         struct bfa_port_cfg_s *port_cfg);
 197 struct bfa_fcs_port_s *bfa_fcs_get_base_port(struct bfa_fcs_s *fcs);
 198 void bfa_fcs_port_get_rports(struct bfa_fcs_port_s *port,
 199                         wwn_t rport_wwns[], int *nrports);
 200
 201 wwn_t bfa_fcs_port_get_rport(struct bfa_fcs_port_s *port, wwn_t wwn,
 202                         int index, int nrports, bfa_boolean_t bwwn);
 203
 204 struct bfa_fcs_port_s *bfa_fcs_lookup_port(struct bfa_fcs_s *fcs,
 205                         u16 vf_id, wwn_t lpwwn);
 206
 207 void bfa_fcs_port_get_info(struct bfa_fcs_port_s *port,
 208                         struct bfa_port_info_s *port_info);
 209 void bfa_fcs_port_get_attr(struct bfa_fcs_port_s *port,
 210                         struct bfa_port_attr_s *port_attr);
 211 void bfa_fcs_port_get_stats(struct bfa_fcs_port_s *fcs_port,
 212                         struct bfa_port_stats_s *port_stats);
 213 void bfa_fcs_port_clear_stats(struct bfa_fcs_port_s *fcs_port);
 214 enum bfa_pport_speed bfa_fcs_port_get_rport_max_speed(
 215                         struct bfa_fcs_port_s *port);
 216 void bfa_fcs_port_enable_ipfc_roles(struct bfa_fcs_port_s *fcs_port);
 217 void bfa_fcs_port_disable_ipfc_roles(struct bfa_fcs_port_s *fcs_port);
 218
 219 #endif /* __BFA_FCS_PORT_H__ */