drivers/scsi/bfa/include/cs/bfa_plog.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_PORTLOG_H__
  18 #define __BFA_PORTLOG_H__
  19
  20 #include "protocol/fc.h"
  21 #include <defs/bfa_defs_types.h>
  22
  23 #define BFA_PL_NLOG_ENTS 256
  24 #define BFA_PL_LOG_REC_INCR(_x) ((_x)++, (_x) %= BFA_PL_NLOG_ENTS)
  25
  26 #define BFA_PL_STRING_LOG_SZ   32   /* number of chars in string log */
  27 #define BFA_PL_INT_LOG_SZ      8    /* number of integers in the integer log */
  28
  29 enum bfa_plog_log_type {
  30         BFA_PL_LOG_TYPE_INVALID = 0,
  31         BFA_PL_LOG_TYPE_INT     = 1,
  32         BFA_PL_LOG_TYPE_STRING  = 2,
  33 };
  34
  35 /*
  36  * the (fixed size) record format for each entry in the portlog
  37  */
  38 struct bfa_plog_rec_s {
  39         u32        tv;  /* Filled by the portlog driver when the *
  40                                  * entry is added to the circular log.   */
  41         u8         port;        /* Source port that logged this entry. CM
  42                                  * entities will use 0xFF */
  43         u8         mid; /* Integer value to be used by all entities *
  44                                  * while logging. The module id to string   *
  45                                  * conversion will be done by BFAL. See
  46                                  * enum bfa_plog_mid */
  47         u8         eid; /* indicates Rx, Tx, IOCTL, etc. See
  48                                  * enum bfa_plog_eid */
  49         u8         log_type; /* indicates string log or integer log.
  50                                    * see bfa_plog_log_type_t */
  51         u8         log_num_ints;
  52         /*
  53          * interpreted only if log_type is INT_LOG. indicates number of
  54          * integers in the int_log[] (0-PL_INT_LOG_SZ).
  55          */
  56         u8         rsvd;
  57         u16        misc;        /* can be used to indicate fc frame length,
  58                                  *etc.. */
  59         union {
  60                 char            string_log[BFA_PL_STRING_LOG_SZ];
  61                 u32        int_log[BFA_PL_INT_LOG_SZ];
  62         } log_entry;
  63
  64 };
  65
  66 /*
  67  * the following #defines will be used by the logging entities to indicate
  68  * their module id. BFAL will convert the integer value to string format
  69  *
  70 * process to be used while changing the following #defines:
  71  *  - Always add new entries at the end
  72  *  - define corresponding string in BFAL
  73  *  - Do not remove any entry or rearrange the order.
  74  */
  75 enum bfa_plog_mid {
  76         BFA_PL_MID_INVALID      = 0,
  77         BFA_PL_MID_DEBUG        = 1,
  78         BFA_PL_MID_DRVR         = 2,
  79         BFA_PL_MID_HAL          = 3,
  80         BFA_PL_MID_HAL_FCXP     = 4,
  81         BFA_PL_MID_HAL_UF       = 5,
  82         BFA_PL_MID_FCS          = 6,
  83         BFA_PL_MID_MAX          = 7
  84 };
  85
  86 #define BFA_PL_MID_STRLEN    8
  87 struct bfa_plog_mid_strings_s {
  88         char            m_str[BFA_PL_MID_STRLEN];
  89 };
  90
  91 /*
  92  * the following #defines will be used by the logging entities to indicate
  93  * their event type. BFAL will convert the integer value to string format
  94  *
  95 * process to be used while changing the following #defines:
  96  *  - Always add new entries at the end
  97  *  - define corresponding string in BFAL
  98  *  - Do not remove any entry or rearrange the order.
  99  */
 100 enum bfa_plog_eid {
 101         BFA_PL_EID_INVALID              = 0,
 102         BFA_PL_EID_IOC_DISABLE          = 1,
 103         BFA_PL_EID_IOC_ENABLE           = 2,
 104         BFA_PL_EID_PORT_DISABLE         = 3,
 105         BFA_PL_EID_PORT_ENABLE          = 4,
 106         BFA_PL_EID_PORT_ST_CHANGE       = 5,
 107         BFA_PL_EID_TX                   = 6,
 108         BFA_PL_EID_TX_ACK1              = 7,
 109         BFA_PL_EID_TX_RJT               = 8,
 110         BFA_PL_EID_TX_BSY               = 9,
 111         BFA_PL_EID_RX                   = 10,
 112         BFA_PL_EID_RX_ACK1              = 11,
 113         BFA_PL_EID_RX_RJT               = 12,
 114         BFA_PL_EID_RX_BSY               = 13,
 115         BFA_PL_EID_CT_IN                = 14,
 116         BFA_PL_EID_CT_OUT               = 15,
 117         BFA_PL_EID_DRIVER_START         = 16,
 118         BFA_PL_EID_RSCN                 = 17,
 119         BFA_PL_EID_DEBUG                = 18,
 120         BFA_PL_EID_MISC                 = 19,
 121         BFA_PL_EID_MAX                  = 20
 122 };
 123
 124 #define BFA_PL_ENAME_STRLEN     8
 125 struct bfa_plog_eid_strings_s {
 126         char            e_str[BFA_PL_ENAME_STRLEN];
 127 };
 128
 129 #define BFA_PL_SIG_LEN  8
 130 #define BFA_PL_SIG_STR  "12pl123"
 131
 132 /*
 133  * per port circular log buffer
 134  */
 135 struct bfa_plog_s {
 136         char            plog_sig[BFA_PL_SIG_LEN];       /* Start signature */
 137         u8         plog_enabled;
 138         u8         rsvd[7];
 139         u32        ticks;
 140         u16        head;
 141         u16        tail;
 142         struct bfa_plog_rec_s  plog_recs[BFA_PL_NLOG_ENTS];
 143 };
 144
 145 void bfa_plog_init(struct bfa_plog_s *plog);
 146 void bfa_plog_str(struct bfa_plog_s *plog, enum bfa_plog_mid mid,
 147                         enum bfa_plog_eid event, u16 misc, char *log_str);
 148 void bfa_plog_intarr(struct bfa_plog_s *plog, enum bfa_plog_mid mid,
 149                         enum bfa_plog_eid event, u16 misc,
 150                         u32 *intarr, u32 num_ints);
 151 void bfa_plog_fchdr(struct bfa_plog_s *plog, enum bfa_plog_mid mid,
 152                         enum bfa_plog_eid event, u16 misc,
 153                         struct fchs_s *fchdr);
 154 void bfa_plog_fchdr_and_pl(struct bfa_plog_s *plog, enum bfa_plog_mid mid,
 155                         enum bfa_plog_eid event, u16 misc,
 156                         struct fchs_s *fchdr, u32 pld_w0);
 157 void bfa_plog_clear(struct bfa_plog_s *plog);
 158 void bfa_plog_enable(struct bfa_plog_s *plog);
 159 void bfa_plog_disable(struct bfa_plog_s *plog);
 160 bfa_boolean_t   bfa_plog_get_setting(struct bfa_plog_s *plog);
 161
 162 #endif /* __BFA_PORTLOG_H__ */