|
|
@@ -0,0 +1,209 @@
|
|
|
+/*
|
|
|
+ * Copyright (c) 2013-2017 The Linux Foundation. All rights reserved.
|
|
|
+ *
|
|
|
+ * Permission to use, copy, modify, and/or distribute this software for
|
|
|
+ * any purpose with or without fee is hereby granted, provided that the
|
|
|
+ * above copyright notice and this permission notice appear in all
|
|
|
+ * copies.
|
|
|
+ *
|
|
|
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
|
|
|
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
|
|
|
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
|
|
|
+ * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
|
|
|
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
|
|
|
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
|
|
|
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
|
|
|
+ * PERFORMANCE OF THIS SOFTWARE.
|
|
|
+ */
|
|
|
+
|
|
|
+/*
|
|
|
+ * DOC: Roaming debug log operations routines and global data
|
|
|
+ */
|
|
|
+
|
|
|
+#include <qdf_types.h>
|
|
|
+#include <qdf_atomic.h>
|
|
|
+#include <qdf_mem.h>
|
|
|
+#include <qdf_time.h>
|
|
|
+#include <qdf_trace.h>
|
|
|
+#include <wlan_cmn.h>
|
|
|
+#include "wlan_roam_debug.h"
|
|
|
+
|
|
|
+/*
|
|
|
+ * wlan roam debug log is stored in this global structure. It can be accessed
|
|
|
+ * without requiring any psoc or vdev context. It will be accessible in
|
|
|
+ * the crash dump without having to dereference complex stack traces.
|
|
|
+ */
|
|
|
+static struct wlan_roam_debug_info global_wlan_roam_debug_table = {
|
|
|
+ { 0 },
|
|
|
+ WLAN_ROAM_DEBUG_MAX_REC,
|
|
|
+};
|
|
|
+
|
|
|
+/**
|
|
|
+ * wlan_roam_next_debug_log_index() - atomically increment and wrap around index
|
|
|
+ * @index: address of index to increment
|
|
|
+ * @size: wrap around this value
|
|
|
+ *
|
|
|
+ * Return: new value of index
|
|
|
+ */
|
|
|
+static int wlan_roam_next_debug_log_index(qdf_atomic_t *index, int size)
|
|
|
+{
|
|
|
+ int i = qdf_atomic_inc_return(index);
|
|
|
+
|
|
|
+ if (i == WLAN_ROAM_DEBUG_MAX_REC)
|
|
|
+ qdf_atomic_sub(WLAN_ROAM_DEBUG_MAX_REC, index);
|
|
|
+ while (i >= size)
|
|
|
+ i -= WLAN_ROAM_DEBUG_MAX_REC;
|
|
|
+
|
|
|
+ return i;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * wlan_roam_debug_log() - Add a debug log entry to wlan roam debug records
|
|
|
+ * @vdev_id: vdev identifier
|
|
|
+ * @op: operation identifier
|
|
|
+ * @peer_id: peer id
|
|
|
+ * @mac_addr: mac address of peer, can be NULL
|
|
|
+ * @peer_obj: peer object address, can be NULL
|
|
|
+ * @arg1: extra argument #1
|
|
|
+ * @arg2: extra argument #2
|
|
|
+ *
|
|
|
+ * Return: none
|
|
|
+ */
|
|
|
+void wlan_roam_debug_log(uint8_t vdev_id, uint8_t op,
|
|
|
+ uint16_t peer_id, void *mac_addr,
|
|
|
+ void *peer_obj, uint32_t arg1, uint32_t arg2)
|
|
|
+{
|
|
|
+ uint32_t i;
|
|
|
+ struct wlan_roam_debug_rec *rec;
|
|
|
+
|
|
|
+ i = wlan_roam_next_debug_log_index(
|
|
|
+ &global_wlan_roam_debug_table.index,
|
|
|
+ WLAN_ROAM_DEBUG_MAX_REC);
|
|
|
+ rec = &global_wlan_roam_debug_table.rec[i];
|
|
|
+ rec->time = qdf_get_log_timestamp();
|
|
|
+ rec->operation = op;
|
|
|
+ rec->vdev_id = vdev_id;
|
|
|
+ rec->peer_id = peer_id;
|
|
|
+ if (mac_addr)
|
|
|
+ qdf_mem_copy(rec->mac_addr.bytes, mac_addr,
|
|
|
+ WLAN_MACADDR_LEN);
|
|
|
+ else
|
|
|
+ qdf_mem_zero(rec->mac_addr.bytes,
|
|
|
+ WLAN_MACADDR_LEN);
|
|
|
+ rec->peer_obj = peer_obj;
|
|
|
+ rec->arg1 = arg1;
|
|
|
+ rec->arg2 = arg2;
|
|
|
+}
|
|
|
+EXPORT_SYMBOL(wlan_roam_debug_log);
|
|
|
+
|
|
|
+/**
|
|
|
+ * wlan_roam_debug_string() - convert operation value to printable string
|
|
|
+ * @op: operation identifier
|
|
|
+ *
|
|
|
+ * Return: printable string for the operation
|
|
|
+ */
|
|
|
+static char *wlan_roam_debug_string(uint32_t op)
|
|
|
+{
|
|
|
+ switch (op) {
|
|
|
+ case DEBUG_PEER_CREATE_SEND:
|
|
|
+ return "peer create send";
|
|
|
+ case DEBUG_PEER_CREATE_RESP:
|
|
|
+ return "peer create resp_event";
|
|
|
+ case DEBUG_PEER_DELETE_SEND:
|
|
|
+ return "peer delete send";
|
|
|
+ case DEBUG_PEER_DELETE_RESP:
|
|
|
+ return "peer delete resp_event";
|
|
|
+ case DEBUG_PEER_MAP_EVENT:
|
|
|
+ return "peer map event";
|
|
|
+ case DEBUG_PEER_UNMAP_EVENT:
|
|
|
+ return "peer unmap event";
|
|
|
+ case DEBUG_PEER_UNREF_DELETE:
|
|
|
+ return "peer unref delete";
|
|
|
+ case DEBUG_DELETING_PEER_OBJ:
|
|
|
+ return "peer obj deleted";
|
|
|
+ case DEBUG_ROAM_SYNCH_IND:
|
|
|
+ return "roam synch ind event";
|
|
|
+ case DEBUG_ROAM_SYNCH_CNF:
|
|
|
+ return "roam sync conf sent";
|
|
|
+ case DEBUG_ROAM_SYNCH_FAIL:
|
|
|
+ return "roam sync fail event";
|
|
|
+ case DEBUG_ROAM_EVENT:
|
|
|
+ return "roam event";
|
|
|
+ case DEBUG_WOW_ROAM_EVENT:
|
|
|
+ return "wow wakeup roam event";
|
|
|
+ case DEBUG_BUS_SUSPEND:
|
|
|
+ return "host suspend";
|
|
|
+ case DEBUG_BUS_RESUME:
|
|
|
+ return "host wakeup";
|
|
|
+ case DEBUG_WOW_REASON:
|
|
|
+ return "wow wakeup reason";
|
|
|
+ default:
|
|
|
+ return "unknown";
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * wlan_roam_debug_dump_table() - Print the wlan roam debug log records
|
|
|
+ * print all the valid debug records in the order of timestamp
|
|
|
+ *
|
|
|
+ * Return: none
|
|
|
+ */
|
|
|
+void wlan_roam_debug_dump_table(void)
|
|
|
+{
|
|
|
+ uint32_t i;
|
|
|
+ int32_t current_index;
|
|
|
+ struct wlan_roam_debug_rec *dbg_rec;
|
|
|
+ uint64_t startt = 0;
|
|
|
+ uint32_t delta;
|
|
|
+
|
|
|
+#define DEBUG_CLOCK_TICKS_PER_MSEC 19200
|
|
|
+
|
|
|
+ current_index = qdf_atomic_read(&global_wlan_roam_debug_table.index);
|
|
|
+ if (current_index < 0) {
|
|
|
+ QDF_TRACE(QDF_MODULE_ID_ROAM_DEBUG, QDF_TRACE_LEVEL_ERROR,
|
|
|
+ "%s: No records to dump", __func__);
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ QDF_TRACE(QDF_MODULE_ID_ROAM_DEBUG, QDF_TRACE_LEVEL_ERROR,
|
|
|
+ "%s: Dumping all records. current index %d",
|
|
|
+ __func__, current_index);
|
|
|
+
|
|
|
+ i = current_index;
|
|
|
+ do {
|
|
|
+ /* wrap around */
|
|
|
+ i = (i + 1) % WLAN_ROAM_DEBUG_MAX_REC;
|
|
|
+ dbg_rec = &global_wlan_roam_debug_table.rec[i];
|
|
|
+ /* skip unused entry */
|
|
|
+ if (dbg_rec->time == 0)
|
|
|
+ continue;
|
|
|
+ if (startt == 0)
|
|
|
+ startt = dbg_rec->time;
|
|
|
+
|
|
|
+ /*
|
|
|
+ * Divide by 19200 == right shift 8 bits, then divide by 75
|
|
|
+ * 32 bit computation keeps both 32 and 64 bit compilers happy.
|
|
|
+ * The value will roll over after approx. 33554 seconds.
|
|
|
+ */
|
|
|
+ delta = (uint32_t) (((dbg_rec->time - startt) >> 8) &
|
|
|
+ 0xffffffff);
|
|
|
+ delta = delta / (DEBUG_CLOCK_TICKS_PER_MSEC >> 8);
|
|
|
+
|
|
|
+ QDF_TRACE(QDF_MODULE_ID_ROAM_DEBUG, QDF_TRACE_LEVEL_ERROR,
|
|
|
+ "index = %5d timestamp = 0x%016llx delta ms = %-12u",
|
|
|
+ i, dbg_rec->time, delta);
|
|
|
+ QDF_TRACE(QDF_MODULE_ID_ROAM_DEBUG, QDF_TRACE_LEVEL_ERROR,
|
|
|
+ "info = %-24s vdev_id = %-3d mac addr = %pM",
|
|
|
+ wlan_roam_debug_string(dbg_rec->operation),
|
|
|
+ (int8_t) dbg_rec->vdev_id, dbg_rec->mac_addr.bytes);
|
|
|
+ QDF_TRACE(QDF_MODULE_ID_ROAM_DEBUG, QDF_TRACE_LEVEL_ERROR,
|
|
|
+ "peer obj = 0x%p peer_id = %-4d",
|
|
|
+ dbg_rec->peer_obj, (int8_t) dbg_rec->peer_id);
|
|
|
+ QDF_TRACE(QDF_MODULE_ID_ROAM_DEBUG, QDF_TRACE_LEVEL_ERROR,
|
|
|
+ "arg1 = 0x%-8x arg2 = 0x%-8x",
|
|
|
+ dbg_rec->arg1, dbg_rec->arg2);
|
|
|
+ } while (i != current_index);
|
|
|
+}
|
|
|
+EXPORT_SYMBOL(global_wlan_roam_debug_table);
|
|
|
+
|
|
|
+
|
|
|
+
|
CNSS_WLAN Service