e4c52ab4d2
Move this as part of iwl-core.c cleanup. Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
378 lines
10 KiB
C
378 lines
10 KiB
C
/******************************************************************************
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*
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* GPL LICENSE SUMMARY
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*
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* Copyright(c) 2008 - 2012 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License 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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
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* USA
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*
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* The full GNU General Public License is included in this distribution
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* in the file called LICENSE.GPL.
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*
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* Contact Information:
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* Intel Linux Wireless <ilw@linux.intel.com>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*****************************************************************************/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/sched.h>
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#include <linux/slab.h>
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#include <net/mac80211.h>
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#include "iwl-eeprom.h"
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#include "iwl-debug.h"
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#include "iwl-core.h"
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#include "iwl-io.h"
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#include "iwl-power.h"
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#include "iwl-shared.h"
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#include "iwl-agn.h"
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#include "iwl-trans.h"
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const u8 iwl_bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
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#ifdef CONFIG_IWLWIFI_DEBUG
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void iwl_print_rx_config_cmd(struct iwl_priv *priv,
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enum iwl_rxon_context_id ctxid)
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{
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struct iwl_rxon_context *ctx = &priv->contexts[ctxid];
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struct iwl_rxon_cmd *rxon = &ctx->staging;
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IWL_DEBUG_RADIO(priv, "RX CONFIG:\n");
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iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon));
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IWL_DEBUG_RADIO(priv, "u16 channel: 0x%x\n", le16_to_cpu(rxon->channel));
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IWL_DEBUG_RADIO(priv, "u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags));
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IWL_DEBUG_RADIO(priv, "u32 filter_flags: 0x%08x\n",
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le32_to_cpu(rxon->filter_flags));
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IWL_DEBUG_RADIO(priv, "u8 dev_type: 0x%x\n", rxon->dev_type);
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IWL_DEBUG_RADIO(priv, "u8 ofdm_basic_rates: 0x%02x\n",
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rxon->ofdm_basic_rates);
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IWL_DEBUG_RADIO(priv, "u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates);
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IWL_DEBUG_RADIO(priv, "u8[6] node_addr: %pM\n", rxon->node_addr);
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IWL_DEBUG_RADIO(priv, "u8[6] bssid_addr: %pM\n", rxon->bssid_addr);
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IWL_DEBUG_RADIO(priv, "u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id));
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}
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#endif
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int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags, bool clear)
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{
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struct iwl_statistics_cmd statistics_cmd = {
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.configuration_flags =
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clear ? IWL_STATS_CONF_CLEAR_STATS : 0,
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};
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if (flags & CMD_ASYNC)
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return iwl_dvm_send_cmd_pdu(priv, REPLY_STATISTICS_CMD,
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CMD_ASYNC,
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sizeof(struct iwl_statistics_cmd),
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&statistics_cmd);
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else
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return iwl_dvm_send_cmd_pdu(priv, REPLY_STATISTICS_CMD,
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CMD_SYNC,
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sizeof(struct iwl_statistics_cmd),
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&statistics_cmd);
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}
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#ifdef CONFIG_IWLWIFI_DEBUGFS
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#define IWL_TRAFFIC_DUMP_SIZE (IWL_TRAFFIC_ENTRY_SIZE * IWL_TRAFFIC_ENTRIES)
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void iwl_reset_traffic_log(struct iwl_priv *priv)
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{
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priv->tx_traffic_idx = 0;
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priv->rx_traffic_idx = 0;
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if (priv->tx_traffic)
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memset(priv->tx_traffic, 0, IWL_TRAFFIC_DUMP_SIZE);
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if (priv->rx_traffic)
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memset(priv->rx_traffic, 0, IWL_TRAFFIC_DUMP_SIZE);
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}
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int iwl_alloc_traffic_mem(struct iwl_priv *priv)
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{
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u32 traffic_size = IWL_TRAFFIC_DUMP_SIZE;
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if (iwl_have_debug_level(IWL_DL_TX)) {
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if (!priv->tx_traffic) {
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priv->tx_traffic =
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kzalloc(traffic_size, GFP_KERNEL);
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if (!priv->tx_traffic)
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return -ENOMEM;
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}
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}
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if (iwl_have_debug_level(IWL_DL_RX)) {
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if (!priv->rx_traffic) {
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priv->rx_traffic =
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kzalloc(traffic_size, GFP_KERNEL);
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if (!priv->rx_traffic)
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return -ENOMEM;
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}
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}
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iwl_reset_traffic_log(priv);
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return 0;
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}
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void iwl_free_traffic_mem(struct iwl_priv *priv)
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{
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kfree(priv->tx_traffic);
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priv->tx_traffic = NULL;
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kfree(priv->rx_traffic);
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priv->rx_traffic = NULL;
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}
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void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
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u16 length, struct ieee80211_hdr *header)
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{
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__le16 fc;
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u16 len;
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if (likely(!iwl_have_debug_level(IWL_DL_TX)))
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return;
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if (!priv->tx_traffic)
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return;
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fc = header->frame_control;
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if (ieee80211_is_data(fc)) {
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len = (length > IWL_TRAFFIC_ENTRY_SIZE)
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? IWL_TRAFFIC_ENTRY_SIZE : length;
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memcpy((priv->tx_traffic +
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(priv->tx_traffic_idx * IWL_TRAFFIC_ENTRY_SIZE)),
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header, len);
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priv->tx_traffic_idx =
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(priv->tx_traffic_idx + 1) % IWL_TRAFFIC_ENTRIES;
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}
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}
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void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
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u16 length, struct ieee80211_hdr *header)
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{
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__le16 fc;
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u16 len;
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if (likely(!iwl_have_debug_level(IWL_DL_RX)))
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return;
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if (!priv->rx_traffic)
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return;
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fc = header->frame_control;
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if (ieee80211_is_data(fc)) {
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len = (length > IWL_TRAFFIC_ENTRY_SIZE)
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? IWL_TRAFFIC_ENTRY_SIZE : length;
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memcpy((priv->rx_traffic +
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(priv->rx_traffic_idx * IWL_TRAFFIC_ENTRY_SIZE)),
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header, len);
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priv->rx_traffic_idx =
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(priv->rx_traffic_idx + 1) % IWL_TRAFFIC_ENTRIES;
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}
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}
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const char *get_mgmt_string(int cmd)
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{
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switch (cmd) {
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IWL_CMD(MANAGEMENT_ASSOC_REQ);
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IWL_CMD(MANAGEMENT_ASSOC_RESP);
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IWL_CMD(MANAGEMENT_REASSOC_REQ);
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IWL_CMD(MANAGEMENT_REASSOC_RESP);
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IWL_CMD(MANAGEMENT_PROBE_REQ);
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IWL_CMD(MANAGEMENT_PROBE_RESP);
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IWL_CMD(MANAGEMENT_BEACON);
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IWL_CMD(MANAGEMENT_ATIM);
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IWL_CMD(MANAGEMENT_DISASSOC);
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IWL_CMD(MANAGEMENT_AUTH);
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IWL_CMD(MANAGEMENT_DEAUTH);
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IWL_CMD(MANAGEMENT_ACTION);
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default:
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return "UNKNOWN";
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}
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}
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const char *get_ctrl_string(int cmd)
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{
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switch (cmd) {
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IWL_CMD(CONTROL_BACK_REQ);
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IWL_CMD(CONTROL_BACK);
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IWL_CMD(CONTROL_PSPOLL);
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IWL_CMD(CONTROL_RTS);
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IWL_CMD(CONTROL_CTS);
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IWL_CMD(CONTROL_ACK);
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IWL_CMD(CONTROL_CFEND);
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IWL_CMD(CONTROL_CFENDACK);
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default:
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return "UNKNOWN";
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}
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}
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void iwl_clear_traffic_stats(struct iwl_priv *priv)
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{
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memset(&priv->tx_stats, 0, sizeof(struct traffic_stats));
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memset(&priv->rx_stats, 0, sizeof(struct traffic_stats));
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}
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/*
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* if CONFIG_IWLWIFI_DEBUGFS defined, iwl_update_stats function will
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* record all the MGMT, CTRL and DATA pkt for both TX and Rx pass.
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* Use debugFs to display the rx/rx_statistics
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* if CONFIG_IWLWIFI_DEBUGFS not being defined, then no MGMT and CTRL
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* information will be recorded, but DATA pkt still will be recorded
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* for the reason of iwl_led.c need to control the led blinking based on
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* number of tx and rx data.
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*
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*/
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void iwl_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc, u16 len)
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{
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struct traffic_stats *stats;
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if (is_tx)
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stats = &priv->tx_stats;
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else
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stats = &priv->rx_stats;
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if (ieee80211_is_mgmt(fc)) {
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switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) {
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case cpu_to_le16(IEEE80211_STYPE_ASSOC_REQ):
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stats->mgmt[MANAGEMENT_ASSOC_REQ]++;
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break;
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case cpu_to_le16(IEEE80211_STYPE_ASSOC_RESP):
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stats->mgmt[MANAGEMENT_ASSOC_RESP]++;
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break;
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case cpu_to_le16(IEEE80211_STYPE_REASSOC_REQ):
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stats->mgmt[MANAGEMENT_REASSOC_REQ]++;
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break;
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case cpu_to_le16(IEEE80211_STYPE_REASSOC_RESP):
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stats->mgmt[MANAGEMENT_REASSOC_RESP]++;
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break;
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case cpu_to_le16(IEEE80211_STYPE_PROBE_REQ):
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stats->mgmt[MANAGEMENT_PROBE_REQ]++;
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break;
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case cpu_to_le16(IEEE80211_STYPE_PROBE_RESP):
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stats->mgmt[MANAGEMENT_PROBE_RESP]++;
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break;
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case cpu_to_le16(IEEE80211_STYPE_BEACON):
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stats->mgmt[MANAGEMENT_BEACON]++;
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break;
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case cpu_to_le16(IEEE80211_STYPE_ATIM):
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stats->mgmt[MANAGEMENT_ATIM]++;
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break;
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case cpu_to_le16(IEEE80211_STYPE_DISASSOC):
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stats->mgmt[MANAGEMENT_DISASSOC]++;
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break;
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case cpu_to_le16(IEEE80211_STYPE_AUTH):
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stats->mgmt[MANAGEMENT_AUTH]++;
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break;
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case cpu_to_le16(IEEE80211_STYPE_DEAUTH):
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stats->mgmt[MANAGEMENT_DEAUTH]++;
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break;
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case cpu_to_le16(IEEE80211_STYPE_ACTION):
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stats->mgmt[MANAGEMENT_ACTION]++;
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break;
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}
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} else if (ieee80211_is_ctl(fc)) {
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switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) {
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case cpu_to_le16(IEEE80211_STYPE_BACK_REQ):
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stats->ctrl[CONTROL_BACK_REQ]++;
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break;
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case cpu_to_le16(IEEE80211_STYPE_BACK):
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stats->ctrl[CONTROL_BACK]++;
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break;
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case cpu_to_le16(IEEE80211_STYPE_PSPOLL):
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stats->ctrl[CONTROL_PSPOLL]++;
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break;
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case cpu_to_le16(IEEE80211_STYPE_RTS):
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stats->ctrl[CONTROL_RTS]++;
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break;
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case cpu_to_le16(IEEE80211_STYPE_CTS):
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stats->ctrl[CONTROL_CTS]++;
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break;
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case cpu_to_le16(IEEE80211_STYPE_ACK):
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stats->ctrl[CONTROL_ACK]++;
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break;
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case cpu_to_le16(IEEE80211_STYPE_CFEND):
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stats->ctrl[CONTROL_CFEND]++;
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break;
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case cpu_to_le16(IEEE80211_STYPE_CFENDACK):
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stats->ctrl[CONTROL_CFENDACK]++;
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break;
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}
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} else {
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/* data */
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stats->data_cnt++;
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stats->data_bytes += len;
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}
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}
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#endif
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int iwl_force_rf_reset(struct iwl_priv *priv, bool external)
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{
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struct iwl_rf_reset *rf_reset;
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if (test_bit(STATUS_EXIT_PENDING, &priv->status))
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return -EAGAIN;
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if (!iwl_is_any_associated(priv)) {
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IWL_DEBUG_SCAN(priv, "force reset rejected: not associated\n");
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return -ENOLINK;
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}
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rf_reset = &priv->rf_reset;
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rf_reset->reset_request_count++;
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if (!external && rf_reset->last_reset_jiffies &&
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time_after(rf_reset->last_reset_jiffies +
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IWL_DELAY_NEXT_FORCE_RF_RESET, jiffies)) {
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IWL_DEBUG_INFO(priv, "RF reset rejected\n");
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rf_reset->reset_reject_count++;
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return -EAGAIN;
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}
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rf_reset->reset_success_count++;
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rf_reset->last_reset_jiffies = jiffies;
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/*
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* There is no easy and better way to force reset the radio,
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* the only known method is switching channel which will force to
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* reset and tune the radio.
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* Use internal short scan (single channel) operation to should
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* achieve this objective.
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* Driver should reset the radio when number of consecutive missed
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* beacon, or any other uCode error condition detected.
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*/
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IWL_DEBUG_INFO(priv, "perform radio reset.\n");
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iwl_internal_short_hw_scan(priv);
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return 0;
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}
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int iwl_cmd_echo_test(struct iwl_priv *priv)
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{
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int ret;
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struct iwl_host_cmd cmd = {
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.id = REPLY_ECHO,
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.len = { 0 },
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.flags = CMD_SYNC,
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};
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ret = iwl_dvm_send_cmd(priv, &cmd);
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if (ret)
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IWL_ERR(priv, "echo testing fail: 0X%x\n", ret);
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else
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IWL_DEBUG_INFO(priv, "echo testing pass\n");
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return ret;
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}
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