8ea15d977b
Change %pM/QDF_MAC_ADDR_STR/ARRAY to QDF_MAC_ADDR_FMT/REF. CRs-Fixed: 2760938 Change-Id: I13d35cc81a4a3fdb8c798947845aca4f9e3fa97c
263 lines
7.0 KiB
C
263 lines
7.0 KiB
C
/*
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* Copyright (c) 2013-2018, 2020 The Linux Foundation. All rights reserved.
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*
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* Permission to use, copy, modify, and/or distribute this software for
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* any purpose with or without fee is hereby granted, provided that the
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* above copyright notice and this permission notice appear in all
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* copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
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* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
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* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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/*
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* DOC: Roaming debug log operations routines and global data
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*/
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#include <qdf_types.h>
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#include <qdf_atomic.h>
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#include <qdf_mem.h>
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#include <qdf_time.h>
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#include <qdf_trace.h>
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#include <qdf_module.h>
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#include <wlan_cmn.h>
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#include "wlan_roam_debug.h"
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#ifdef FEATURE_ROAM_DEBUG
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#ifdef WLAN_LOGGING_BUFFERS_DYNAMICALLY
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static struct wlan_roam_debug_info *global_wlan_roam_debug_table;
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/**
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* wlan_roam_debug_init() - Allocate log buffer dynamically
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*
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* Return: none
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*/
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void wlan_roam_debug_init(void)
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{
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global_wlan_roam_debug_table = vzalloc(
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sizeof(*global_wlan_roam_debug_table));
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QDF_BUG(global_wlan_roam_debug_table);
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if (global_wlan_roam_debug_table) {
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qdf_atomic_init(&global_wlan_roam_debug_table->index);
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global_wlan_roam_debug_table->num_max_rec =
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WLAN_ROAM_DEBUG_MAX_REC;
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}
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}
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qdf_export_symbol(wlan_roam_debug_init);
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static inline struct wlan_roam_debug_info *wlan_roam_debug_get_table(void)
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{
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return global_wlan_roam_debug_table;
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}
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/**
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* wlan_roam_debug_deinit() - Free log buffer allocated dynamically
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*
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* Return: none
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*/
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void wlan_roam_debug_deinit(void)
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{
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vfree(global_wlan_roam_debug_table);
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global_wlan_roam_debug_table = NULL;
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}
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qdf_export_symbol(wlan_roam_debug_deinit);
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#else /* WLAN_LOGGING_BUFFERS_DYNAMICALLY */
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/*
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* wlan roam debug log is stored in this global structure. It can be accessed
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* without requiring any psoc or vdev context. It will be accessible in
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* the crash dump without having to dereference complex stack traces.
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*/
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static struct wlan_roam_debug_info global_wlan_roam_debug_table = {
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{ 0 },
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WLAN_ROAM_DEBUG_MAX_REC,
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};
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static inline struct wlan_roam_debug_info *wlan_roam_debug_get_table(void)
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{
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return &global_wlan_roam_debug_table;
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}
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#endif /* WLAN_LOGGING_BUFFERS_DYNAMICALLY */
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/**
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* wlan_roam_next_debug_log_index() - atomically increment and wrap around index
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* @index: address of index to increment
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* @size: wrap around this value
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*
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* Return: new value of index
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*/
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static int wlan_roam_next_debug_log_index(qdf_atomic_t *index, int size)
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{
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int i = qdf_atomic_inc_return(index);
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if (i == WLAN_ROAM_DEBUG_MAX_REC)
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qdf_atomic_sub(WLAN_ROAM_DEBUG_MAX_REC, index);
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while (i >= size)
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i -= WLAN_ROAM_DEBUG_MAX_REC;
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return i;
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}
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/**
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* wlan_roam_debug_log() - Add a debug log entry to wlan roam debug records
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* @vdev_id: vdev identifier
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* @op: operation identifier
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* @peer_id: peer id
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* @mac_addr: mac address of peer, can be NULL
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* @peer_obj: peer object address, can be NULL
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* @arg1: extra argument #1
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* @arg2: extra argument #2
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*
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* Return: none
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*/
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void wlan_roam_debug_log(uint8_t vdev_id, uint8_t op,
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uint16_t peer_id, void *mac_addr,
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void *peer_obj, uint32_t arg1, uint32_t arg2)
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{
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uint32_t i;
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struct wlan_roam_debug_info *dbg_tbl;
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struct wlan_roam_debug_rec *rec;
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dbg_tbl = wlan_roam_debug_get_table();
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if (!dbg_tbl)
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return;
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i = wlan_roam_next_debug_log_index(
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&dbg_tbl->index,
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WLAN_ROAM_DEBUG_MAX_REC);
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rec = &dbg_tbl->rec[i];
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rec->time = qdf_get_log_timestamp();
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rec->operation = op;
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rec->vdev_id = vdev_id;
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rec->peer_id = peer_id;
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if (mac_addr)
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qdf_mem_copy(rec->mac_addr.bytes, mac_addr,
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QDF_MAC_ADDR_SIZE);
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else
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qdf_mem_zero(rec->mac_addr.bytes,
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QDF_MAC_ADDR_SIZE);
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rec->peer_obj = peer_obj;
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rec->arg1 = arg1;
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rec->arg2 = arg2;
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}
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qdf_export_symbol(wlan_roam_debug_log);
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/**
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* wlan_roam_debug_string() - convert operation value to printable string
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* @op: operation identifier
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*
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* Return: printable string for the operation
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*/
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static char *wlan_roam_debug_string(uint32_t op)
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{
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switch (op) {
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case DEBUG_PEER_CREATE_SEND:
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return "peer create send";
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case DEBUG_PEER_CREATE_RESP:
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return "peer create resp_event";
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case DEBUG_PEER_DELETE_SEND:
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return "peer delete send";
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case DEBUG_PEER_DELETE_RESP:
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return "peer delete resp_event";
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case DEBUG_PEER_MAP_EVENT:
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return "peer map event";
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case DEBUG_PEER_UNMAP_EVENT:
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return "peer unmap event";
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case DEBUG_PEER_UNREF_DELETE:
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return "peer unref delete";
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case DEBUG_DELETING_PEER_OBJ:
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return "peer obj deleted";
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case DEBUG_ROAM_SYNCH_IND:
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return "roam synch ind event";
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case DEBUG_ROAM_SYNCH_CNF:
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return "roam sync conf sent";
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case DEBUG_ROAM_SYNCH_FAIL:
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return "roam sync fail event";
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case DEBUG_ROAM_EVENT:
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return "roam event";
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case DEBUG_WOW_ROAM_EVENT:
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return "wow wakeup roam event";
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case DEBUG_BUS_SUSPEND:
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return "host suspend";
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case DEBUG_BUS_RESUME:
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return "host wakeup";
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case DEBUG_WOW_REASON:
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return "wow wakeup reason";
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default:
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return "unknown";
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}
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}
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/**
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* wlan_roam_debug_dump_table() - Print the wlan roam debug log records
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* print all the valid debug records in the order of timestamp
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*
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* Return: none
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*/
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void wlan_roam_debug_dump_table(void)
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{
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uint32_t i;
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int32_t current_index;
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struct wlan_roam_debug_info *dbg_tbl;
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struct wlan_roam_debug_rec *dbg_rec;
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uint64_t startt = 0;
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uint32_t delta;
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#define DEBUG_CLOCK_TICKS_PER_MSEC 19200
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dbg_tbl = wlan_roam_debug_get_table();
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if (!dbg_tbl)
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return;
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current_index = qdf_atomic_read(&dbg_tbl->index);
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if (current_index < 0) {
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roam_debug("No records to dump");
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return;
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}
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roam_debug("Dumping all records. current index %d", current_index);
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i = current_index;
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do {
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/* wrap around */
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i = (i + 1) % WLAN_ROAM_DEBUG_MAX_REC;
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dbg_rec = &dbg_tbl->rec[i];
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/* skip unused entry */
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if (dbg_rec->time == 0)
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continue;
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if (startt == 0)
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startt = dbg_rec->time;
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/*
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* Divide by 19200 == right shift 8 bits, then divide by 75
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* 32 bit computation keeps both 32 and 64 bit compilers happy.
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* The value will roll over after approx. 33554 seconds.
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*/
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delta = (uint32_t) (((dbg_rec->time - startt) >> 8) &
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0xffffffff);
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delta = delta / (DEBUG_CLOCK_TICKS_PER_MSEC >> 8);
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roam_debug("index = %5d timestamp = 0x%016llx delta ms = %-12u",
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i, dbg_rec->time, delta);
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roam_debug("info = %-24s vdev_id = %-3d mac addr = "QDF_MAC_ADDR_FMT,
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wlan_roam_debug_string(dbg_rec->operation),
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(int8_t)dbg_rec->vdev_id,
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QDF_MAC_ADDR_REF(dbg_rec->mac_addr.bytes));
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roam_debug("peer obj = 0x%pK peer_id = %-4d", dbg_rec->peer_obj,
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(int8_t)dbg_rec->peer_id);
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roam_debug("arg1 = 0x%-8x arg2 = 0x%-8x", dbg_rec->arg1,
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dbg_rec->arg2);
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} while (i != current_index);
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}
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qdf_export_symbol(wlan_roam_debug_dump_table);
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#endif /* FEATURE_ROAM_DEBUG */
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