drivers/scsi/bfa/bfa_plog.h

   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 #ifndef __BFA_PORTLOG_H__
  18 #define __BFA_PORTLOG_H__
  19
  20 #include "bfa_fc.h"
  21 #include "bfa_defs.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         u64     tv;     /* timestamp */
  40         u8       port;  /* Source port that logged this entry */
  41         u8       mid;   /* module id */
  42         u8       eid;   /* indicates Rx, Tx, IOCTL, etc.  bfa_plog_eid */
  43         u8       log_type; /* string/integer log, bfa_plog_log_type_t */
  44         u8       log_num_ints;
  45         /*
  46          * interpreted only if log_type is INT_LOG. indicates number of
  47          * integers in the int_log[] (0-PL_INT_LOG_SZ).
  48          */
  49         u8       rsvd;
  50         u16     misc;   /* can be used to indicate fc frame length */
  51         union {
  52                 char        string_log[BFA_PL_STRING_LOG_SZ];
  53                 u32     int_log[BFA_PL_INT_LOG_SZ];
  54         } log_entry;
  55
  56 };
  57
  58 /*
  59  * the following #defines will be used by the logging entities to indicate
  60  * their module id. BFAL will convert the integer value to string format
  61  *
  62 * process to be used while changing the following #defines:
  63  *  - Always add new entries at the end
  64  *  - define corresponding string in BFAL
  65  *  - Do not remove any entry or rearrange the order.
  66  */
  67 enum bfa_plog_mid {
  68         BFA_PL_MID_INVALID      = 0,
  69         BFA_PL_MID_DEBUG        = 1,
  70         BFA_PL_MID_DRVR         = 2,
  71         BFA_PL_MID_HAL          = 3,
  72         BFA_PL_MID_HAL_FCXP     = 4,
  73         BFA_PL_MID_HAL_UF       = 5,
  74         BFA_PL_MID_FCS          = 6,
  75         BFA_PL_MID_LPS          = 7,
  76         BFA_PL_MID_MAX          = 8
  77 };
  78
  79 #define BFA_PL_MID_STRLEN    8
  80 struct bfa_plog_mid_strings_s {
  81         char        m_str[BFA_PL_MID_STRLEN];
  82 };
  83
  84 /*
  85  * the following #defines will be used by the logging entities to indicate
  86  * their event type. BFAL will convert the integer value to string format
  87  *
  88 * process to be used while changing the following #defines:
  89  *  - Always add new entries at the end
  90  *  - define corresponding string in BFAL
  91  *  - Do not remove any entry or rearrange the order.
  92  */
  93 enum bfa_plog_eid {
  94         BFA_PL_EID_INVALID              = 0,
  95         BFA_PL_EID_IOC_DISABLE          = 1,
  96         BFA_PL_EID_IOC_ENABLE           = 2,
  97         BFA_PL_EID_PORT_DISABLE         = 3,
  98         BFA_PL_EID_PORT_ENABLE          = 4,
  99         BFA_PL_EID_PORT_ST_CHANGE       = 5,
 100         BFA_PL_EID_TX                   = 6,
 101         BFA_PL_EID_TX_ACK1              = 7,
 102         BFA_PL_EID_TX_RJT               = 8,
 103         BFA_PL_EID_TX_BSY               = 9,
 104         BFA_PL_EID_RX                   = 10,
 105         BFA_PL_EID_RX_ACK1              = 11,
 106         BFA_PL_EID_RX_RJT               = 12,
 107         BFA_PL_EID_RX_BSY               = 13,
 108         BFA_PL_EID_CT_IN                = 14,
 109         BFA_PL_EID_CT_OUT               = 15,
 110         BFA_PL_EID_DRIVER_START         = 16,
 111         BFA_PL_EID_RSCN                 = 17,
 112         BFA_PL_EID_DEBUG                = 18,
 113         BFA_PL_EID_MISC                 = 19,
 114         BFA_PL_EID_FIP_FCF_DISC         = 20,
 115         BFA_PL_EID_FIP_FCF_CVL          = 21,
 116         BFA_PL_EID_LOGIN                = 22,
 117         BFA_PL_EID_LOGO                 = 23,
 118         BFA_PL_EID_TRUNK_SCN            = 24,
 119         BFA_PL_EID_MAX
 120 };
 121
 122 #define BFA_PL_ENAME_STRLEN     8
 123 struct bfa_plog_eid_strings_s {
 124         char        e_str[BFA_PL_ENAME_STRLEN];
 125 };
 126
 127 #define BFA_PL_SIG_LEN  8
 128 #define BFA_PL_SIG_STR  "12pl123"
 129
 130 /*
 131  * per port circular log buffer
 132  */
 133 struct bfa_plog_s {
 134         char        plog_sig[BFA_PL_SIG_LEN];   /* Start signature */
 135         u8       plog_enabled;
 136         u8       rsvd[7];
 137         u32     ticks;
 138         u16     head;
 139         u16     tail;
 140         struct bfa_plog_rec_s  plog_recs[BFA_PL_NLOG_ENTS];
 141 };
 142
 143 void bfa_plog_init(struct bfa_plog_s *plog);
 144 void bfa_plog_str(struct bfa_plog_s *plog, enum bfa_plog_mid mid,
 145                         enum bfa_plog_eid event, u16 misc, char *log_str);
 146 void bfa_plog_intarr(struct bfa_plog_s *plog, enum bfa_plog_mid mid,
 147                         enum bfa_plog_eid event, u16 misc,
 148                         u32 *intarr, u32 num_ints);
 149 void bfa_plog_fchdr(struct bfa_plog_s *plog, enum bfa_plog_mid mid,
 150                 enum bfa_plog_eid event, u16 misc, struct fchs_s *fchdr);
 151 void bfa_plog_fchdr_and_pl(struct bfa_plog_s *plog, enum bfa_plog_mid mid,
 152                         enum bfa_plog_eid event, u16 misc,
 153                         struct fchs_s *fchdr, u32 pld_w0);
 154
 155 #endif /* __BFA_PORTLOG_H__ */