drivers/scsi/bfa/include/defs/bfa_defs_tin.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 #ifndef __BFA_DEFS_TIN_H__
  19 #define __BFA_DEFS_TIN_H__
  20
  21 #include <protocol/types.h>
  22 #include <protocol/fc.h>
  23
  24 /**
  25  * FCS tin states
  26  */
  27 enum bfa_tin_state_e {
  28         BFA_TIN_SM_OFFLINE = 0,         /*  tin is offline */
  29         BFA_TIN_SM_WOS_LOGIN = 1,       /*  Waiting PRLI ACC/RJT from ULP */
  30         BFA_TIN_SM_WFW_ONLINE = 2,      /*  Waiting ACK to PRLI ACC from FW */
  31         BFA_TIN_SM_ONLINE = 3,          /*  tin login is complete */
  32         BFA_TIN_SM_WIO_RELOGIN = 4,     /*  tin relogin is in progress */
  33         BFA_TIN_SM_WIO_LOGOUT = 5,      /*  Processing of PRLO req from
  34                                          *   Initiator is in progress
  35                                          */
  36         BFA_TIN_SM_WOS_LOGOUT = 6,      /*  Processing of PRLO req from
  37                                          *   Initiator is in progress
  38                                          */
  39         BFA_TIN_SM_WIO_CLEAN = 7,       /*  Waiting for IO cleanup before tin
  40                                          *   is offline. This can be triggered
  41                                          *   by RPORT LOGO (rcvd/sent) or by
  42                                          *   PRLO (rcvd/sent)
  43                                          */
  44 };
  45
  46 struct bfa_prli_req_s {
  47         struct fchs_s fchs;
  48         struct fc_prli_s prli_payload;
  49 };
  50
  51 struct bfa_prlo_req_s {
  52         struct fchs_s fchs;
  53         struct fc_prlo_s prlo_payload;
  54 };
  55
  56 void bfa_tin_send_login_rsp(void *bfa_tin, u32 login_rsp,
  57                                 struct fc_ls_rjt_s rjt_payload);
  58 void bfa_tin_send_logout_rsp(void *bfa_tin, u32 logout_rsp,
  59                                 struct fc_ls_rjt_s rjt_payload);
  60 /**
  61  * FCS target port statistics
  62  */
  63 struct bfa_tin_stats_s {
  64         u32 onlines;    /*  ITN nexus onlines (PRLI done) */
  65         u32 offlines;   /*  ITN Nexus offlines  */
  66         u32 prli_req_parse_err; /*  prli req parsing errors */
  67         u32 prli_rsp_rjt;       /*  num prli rsp rejects sent */
  68         u32 prli_rsp_acc;       /*  num prli rsp accepts sent */
  69         u32 cleanup_comps;      /*  ITN cleanup completions */
  70 };
  71
  72 /**
  73  * FCS tin attributes returned in queries
  74  */
  75 struct bfa_tin_attr_s {
  76         enum bfa_tin_state_e state;
  77         u8      seq_retry;    /*  Sequence retry supported      */
  78         u8      rsvd[3];
  79 };
  80
  81 /**
  82  * BFA TIN async event data structure for BFAL
  83  */
  84 enum bfa_tin_aen_event {
  85         BFA_TIN_AEN_ONLINE      = 1,    /*  Target online */
  86         BFA_TIN_AEN_OFFLINE     = 2,    /*  Target offline */
  87         BFA_TIN_AEN_DISCONNECT  = 3,    /*  Target disconnected */
  88 };
  89
  90 /**
  91  * BFA TIN event data structure.
  92  */
  93 struct bfa_tin_aen_data_s {
  94         u16 vf_id;      /*  vf_id of the IT nexus */
  95         u16 rsvd[3];
  96         wwn_t lpwwn;    /*  WWN of logical port */
  97         wwn_t rpwwn;    /*  WWN of remote(target) port */
  98 };
  99
 100 /**
 101  * Below APIs are needed from BFA driver
 102  * Move these to BFA driver public header file?
 103  */
 104 /*  TIN rcvd new PRLI & gets bfad_tin_t ptr from driver this callback */
 105 void *bfad_tin_rcvd_login_req(void *bfad_tm_port, void *bfa_tin,
 106                                 wwn_t rp_wwn, u32 rp_fcid,
 107                                 struct bfa_prli_req_s prli_req);
 108 /*  TIN rcvd new PRLO */
 109 void bfad_tin_rcvd_logout_req(void *bfad_tin, wwn_t rp_wwn, u32 rp_fcid,
 110                                 struct bfa_prlo_req_s prlo_req);
 111 /*  TIN is online and ready for IO */
 112 void bfad_tin_online(void *bfad_tin);
 113 /*  TIN is offline and BFA driver can shutdown its upper stack */
 114 void bfad_tin_offline(void *bfad_tin);
 115 /*  TIN does not need this BFA driver tin tag anymore, so can be freed */
 116 void bfad_tin_res_free(void *bfad_tin);
 117
 118 #endif /* __BFA_DEFS_TIN_H__ */