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346 lines
8.8 KiB
346 lines
8.8 KiB
/*
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* Copyright (c) 2005-2009 Brocade Communications Systems, Inc.
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* All rights reserved
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* www.brocade.com
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*
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* Linux driver for Brocade Fibre Channel Host Bus Adapter.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License (GPL) Version 2 as
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* published by the Free Software Foundation
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*/
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/**
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* bfa_log.c BFA log library
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*/
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#include <bfa_os_inc.h>
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#include <cs/bfa_log.h>
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/*
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* global log info structure
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*/
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struct bfa_log_info_s {
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u32 start_idx; /* start index for a module */
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u32 total_count; /* total count for a module */
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enum bfa_log_severity level; /* global log level */
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bfa_log_cb_t cbfn; /* callback function */
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};
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static struct bfa_log_info_s bfa_log_info[BFA_LOG_MODULE_ID_MAX + 1];
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static u32 bfa_log_msg_total_count;
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static int bfa_log_initialized;
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static char *bfa_log_severity[] =
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{ "[none]", "[critical]", "[error]", "[warn]", "[info]", "" };
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/**
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* BFA log library initialization
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*
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* The log library initialization includes the following,
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* - set log instance name and callback function
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* - read the message array generated from xml files
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* - calculate start index for each module
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* - calculate message count for each module
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* - perform error checking
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*
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* @param[in] log_mod - log module info
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* @param[in] instance_name - instance name
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* @param[in] cbfn - callback function
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*
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* It return 0 on success, or -1 on failure
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*/
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int
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bfa_log_init(struct bfa_log_mod_s *log_mod, char *instance_name,
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bfa_log_cb_t cbfn)
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{
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struct bfa_log_msgdef_s *msg;
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u32 pre_mod_id = 0;
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u32 cur_mod_id = 0;
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u32 i, pre_idx, idx, msg_id;
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/*
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* set instance name
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*/
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if (log_mod) {
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strncpy(log_mod->instance_info, instance_name,
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sizeof(log_mod->instance_info));
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log_mod->cbfn = cbfn;
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for (i = 0; i <= BFA_LOG_MODULE_ID_MAX; i++)
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log_mod->log_level[i] = BFA_LOG_WARNING;
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}
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if (bfa_log_initialized)
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return 0;
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for (i = 0; i <= BFA_LOG_MODULE_ID_MAX; i++) {
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bfa_log_info[i].start_idx = 0;
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bfa_log_info[i].total_count = 0;
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bfa_log_info[i].level = BFA_LOG_WARNING;
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bfa_log_info[i].cbfn = cbfn;
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}
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pre_idx = 0;
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idx = 0;
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msg = bfa_log_msg_array;
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msg_id = BFA_LOG_GET_MSG_ID(msg);
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pre_mod_id = BFA_LOG_GET_MOD_ID(msg_id);
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while (msg_id != 0) {
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cur_mod_id = BFA_LOG_GET_MOD_ID(msg_id);
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if (cur_mod_id > BFA_LOG_MODULE_ID_MAX) {
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cbfn(log_mod, msg_id,
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"%s%s log: module id %u out of range\n",
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BFA_LOG_CAT_NAME,
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bfa_log_severity[BFA_LOG_ERROR],
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cur_mod_id);
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return -1;
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}
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if (pre_mod_id > BFA_LOG_MODULE_ID_MAX) {
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cbfn(log_mod, msg_id,
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"%s%s log: module id %u out of range\n",
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BFA_LOG_CAT_NAME,
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bfa_log_severity[BFA_LOG_ERROR],
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pre_mod_id);
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return -1;
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}
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if (cur_mod_id != pre_mod_id) {
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bfa_log_info[pre_mod_id].start_idx = pre_idx;
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bfa_log_info[pre_mod_id].total_count = idx - pre_idx;
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pre_mod_id = cur_mod_id;
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pre_idx = idx;
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}
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idx++;
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msg++;
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msg_id = BFA_LOG_GET_MSG_ID(msg);
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}
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bfa_log_info[cur_mod_id].start_idx = pre_idx;
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bfa_log_info[cur_mod_id].total_count = idx - pre_idx;
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bfa_log_msg_total_count = idx;
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cbfn(log_mod, msg_id, "%s%s log: init OK, msg total count %u\n",
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BFA_LOG_CAT_NAME,
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bfa_log_severity[BFA_LOG_INFO], bfa_log_msg_total_count);
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bfa_log_initialized = 1;
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return 0;
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}
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/**
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* BFA log set log level for a module
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*
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* @param[in] log_mod - log module info
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* @param[in] mod_id - module id
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* @param[in] log_level - log severity level
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*
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* It return BFA_STATUS_OK on success, or > 0 on failure
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*/
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bfa_status_t
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bfa_log_set_level(struct bfa_log_mod_s *log_mod, int mod_id,
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enum bfa_log_severity log_level)
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{
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if (mod_id <= BFA_LOG_UNUSED_ID || mod_id > BFA_LOG_MODULE_ID_MAX)
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return BFA_STATUS_EINVAL;
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if (log_level <= BFA_LOG_INVALID || log_level > BFA_LOG_LEVEL_MAX)
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return BFA_STATUS_EINVAL;
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if (log_mod)
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log_mod->log_level[mod_id] = log_level;
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else
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bfa_log_info[mod_id].level = log_level;
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return BFA_STATUS_OK;
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}
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/**
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* BFA log set log level for all modules
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*
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* @param[in] log_mod - log module info
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* @param[in] log_level - log severity level
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*
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* It return BFA_STATUS_OK on success, or > 0 on failure
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*/
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bfa_status_t
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bfa_log_set_level_all(struct bfa_log_mod_s *log_mod,
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enum bfa_log_severity log_level)
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{
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int mod_id = BFA_LOG_UNUSED_ID + 1;
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if (log_level <= BFA_LOG_INVALID || log_level > BFA_LOG_LEVEL_MAX)
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return BFA_STATUS_EINVAL;
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if (log_mod) {
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for (; mod_id <= BFA_LOG_MODULE_ID_MAX; mod_id++)
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log_mod->log_level[mod_id] = log_level;
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} else {
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for (; mod_id <= BFA_LOG_MODULE_ID_MAX; mod_id++)
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bfa_log_info[mod_id].level = log_level;
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}
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return BFA_STATUS_OK;
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}
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/**
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* BFA log set log level for all aen sub-modules
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*
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* @param[in] log_mod - log module info
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* @param[in] log_level - log severity level
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*
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* It return BFA_STATUS_OK on success, or > 0 on failure
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*/
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bfa_status_t
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bfa_log_set_level_aen(struct bfa_log_mod_s *log_mod,
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enum bfa_log_severity log_level)
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{
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int mod_id = BFA_LOG_AEN_MIN + 1;
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if (log_mod) {
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for (; mod_id <= BFA_LOG_AEN_MAX; mod_id++)
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log_mod->log_level[mod_id] = log_level;
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} else {
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for (; mod_id <= BFA_LOG_AEN_MAX; mod_id++)
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bfa_log_info[mod_id].level = log_level;
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}
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return BFA_STATUS_OK;
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}
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/**
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* BFA log get log level for a module
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*
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* @param[in] log_mod - log module info
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* @param[in] mod_id - module id
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*
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* It returns log level or -1 on error
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*/
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enum bfa_log_severity
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bfa_log_get_level(struct bfa_log_mod_s *log_mod, int mod_id)
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{
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if (mod_id <= BFA_LOG_UNUSED_ID || mod_id > BFA_LOG_MODULE_ID_MAX)
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return BFA_LOG_INVALID;
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if (log_mod)
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return log_mod->log_level[mod_id];
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else
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return bfa_log_info[mod_id].level;
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}
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enum bfa_log_severity
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bfa_log_get_msg_level(struct bfa_log_mod_s *log_mod, u32 msg_id)
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{
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struct bfa_log_msgdef_s *msg;
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u32 mod = BFA_LOG_GET_MOD_ID(msg_id);
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u32 idx = BFA_LOG_GET_MSG_IDX(msg_id) - 1;
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if (!bfa_log_initialized)
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return BFA_LOG_INVALID;
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if (mod > BFA_LOG_MODULE_ID_MAX)
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return BFA_LOG_INVALID;
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if (idx >= bfa_log_info[mod].total_count) {
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bfa_log_info[mod].cbfn(log_mod, msg_id,
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"%s%s log: inconsistent idx %u vs. total count %u\n",
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BFA_LOG_CAT_NAME, bfa_log_severity[BFA_LOG_ERROR], idx,
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bfa_log_info[mod].total_count);
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return BFA_LOG_INVALID;
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}
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msg = bfa_log_msg_array + bfa_log_info[mod].start_idx + idx;
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if (msg_id != BFA_LOG_GET_MSG_ID(msg)) {
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bfa_log_info[mod].cbfn(log_mod, msg_id,
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"%s%s log: inconsistent msg id %u array msg id %u\n",
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BFA_LOG_CAT_NAME, bfa_log_severity[BFA_LOG_ERROR],
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msg_id, BFA_LOG_GET_MSG_ID(msg));
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return BFA_LOG_INVALID;
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}
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return BFA_LOG_GET_SEVERITY(msg);
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}
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/**
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* BFA log message handling
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*
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* BFA log message handling finds the message based on message id and prints
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* out the message based on its format and arguments. It also does prefix
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* the severity etc.
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*
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* @param[in] log_mod - log module info
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* @param[in] msg_id - message id
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* @param[in] ... - message arguments
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*
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* It return 0 on success, or -1 on errors
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*/
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int
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bfa_log(struct bfa_log_mod_s *log_mod, u32 msg_id, ...)
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{
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va_list ap;
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char buf[256];
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struct bfa_log_msgdef_s *msg;
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int log_level;
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u32 mod = BFA_LOG_GET_MOD_ID(msg_id);
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u32 idx = BFA_LOG_GET_MSG_IDX(msg_id) - 1;
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if (!bfa_log_initialized)
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return -1;
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if (mod > BFA_LOG_MODULE_ID_MAX)
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return -1;
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if (idx >= bfa_log_info[mod].total_count) {
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bfa_log_info[mod].
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cbfn
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(log_mod, msg_id,
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"%s%s log: inconsistent idx %u vs. total count %u\n",
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BFA_LOG_CAT_NAME, bfa_log_severity[BFA_LOG_ERROR], idx,
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bfa_log_info[mod].total_count);
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return -1;
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}
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msg = bfa_log_msg_array + bfa_log_info[mod].start_idx + idx;
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if (msg_id != BFA_LOG_GET_MSG_ID(msg)) {
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bfa_log_info[mod].
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cbfn
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(log_mod, msg_id,
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"%s%s log: inconsistent msg id %u array msg id %u\n",
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BFA_LOG_CAT_NAME, bfa_log_severity[BFA_LOG_ERROR],
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msg_id, BFA_LOG_GET_MSG_ID(msg));
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return -1;
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}
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log_level = log_mod ? log_mod->log_level[mod] : bfa_log_info[mod].level;
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if ((BFA_LOG_GET_SEVERITY(msg) > log_level) &&
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(msg->attributes != BFA_LOG_ATTR_NONE))
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return 0;
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va_start(ap, msg_id);
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bfa_os_vsprintf(buf, BFA_LOG_GET_MSG_FMT_STRING(msg), ap);
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va_end(ap);
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if (log_mod)
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log_mod->cbfn(log_mod, msg_id, "%s[%s]%s%s %s: %s\n",
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BFA_LOG_CAT_NAME, log_mod->instance_info,
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bfa_log_severity[BFA_LOG_GET_SEVERITY(msg)],
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(msg->attributes & BFA_LOG_ATTR_AUDIT)
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? " (audit) " : "", msg->msg_value, buf);
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else
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bfa_log_info[mod].cbfn(log_mod, msg_id, "%s%s%s %s: %s\n",
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BFA_LOG_CAT_NAME,
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bfa_log_severity[BFA_LOG_GET_SEVERITY(msg)],
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(msg->attributes & BFA_LOG_ATTR_AUDIT) ?
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" (audit) " : "", msg->msg_value, buf);
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return 0;
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}
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