Commit 253a634c authored by Emmanuel Grumbach's avatar Emmanuel Grumbach Committed by Wey-Yi Guy
Browse files

iwlagn: move tx transport functions to iwl-trans-tx-pcie.c



There are still a few functions here and there that should be
put in the transport layer. Mainly the functions that are related to the reclaim flow.
Signed-off-by: default avatarEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: default avatarWey-Yi Guy <wey-yi.w.guy@intel.com>
parent ab697a9f
......@@ -5,8 +5,8 @@ iwlagn-objs += iwl-agn-ucode.o iwl-agn-tx.o
iwlagn-objs += iwl-agn-lib.o iwl-agn-calib.o iwl-io.o
iwlagn-objs += iwl-agn-tt.o iwl-agn-sta.o iwl-agn-eeprom.o
iwlagn-objs += iwl-core.o iwl-eeprom.o iwl-hcmd.o iwl-power.o
iwlagn-objs += iwl-rx.o iwl-tx.o iwl-sta.o
iwlagn-objs += iwl-core.o iwl-eeprom.o iwl-power.o
iwlagn-objs += iwl-rx.o iwl-sta.o
iwlagn-objs += iwl-scan.o iwl-led.o
iwlagn-objs += iwl-agn-rxon.o iwl-agn-ict.o
iwlagn-objs += iwl-5000.o
......@@ -14,7 +14,7 @@ iwlagn-objs += iwl-6000.o
iwlagn-objs += iwl-1000.o
iwlagn-objs += iwl-2000.o
iwlagn-objs += iwl-pci.o
iwlagn-objs += iwl-trans.o iwl-trans-rx-pcie.o
iwlagn-objs += iwl-trans.o iwl-trans-rx-pcie.o iwl-trans-tx-pcie.o
iwlagn-$(CONFIG_IWLWIFI_DEBUGFS) += iwl-debugfs.o
iwlagn-$(CONFIG_IWLWIFI_DEVICE_TRACING) += iwl-devtrace.o
......
......@@ -189,9 +189,6 @@ void iwl_rx_dispatch(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
/* tx */
void iwlagn_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq,
int index);
int iwlagn_txq_attach_buf_to_tfd(struct iwl_priv *priv,
struct iwl_tx_queue *txq,
dma_addr_t addr, u16 len, u8 reset);
void iwlagn_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags,
struct ieee80211_tx_info *info);
int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb);
......
......@@ -336,18 +336,8 @@ static inline void iwl_update_stats(struct iwl_priv *priv, bool is_tx,
/*****************************************************
* RX
******************************************************/
void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
void iwl_chswitch_done(struct iwl_priv *priv, bool is_success);
/* TX helpers */
/*****************************************************
* TX
******************************************************/
void iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq);
int iwl_queue_init(struct iwl_priv *priv, struct iwl_queue *q,
int count, int slots_num, u32 id);
void iwl_setup_watchdog(struct iwl_priv *priv);
/*****************************************************
* TX power
......@@ -398,12 +388,6 @@ int __must_check iwl_scan_initiate(struct iwl_priv *priv,
*****************************************************/
const char *get_cmd_string(u8 cmd);
int iwl_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
int __must_check iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id, u32 flags,
u16 len, const void *data);
int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
void iwl_bg_watchdog(unsigned long data);
u32 iwl_usecs_to_beacons(struct iwl_priv *priv, u32 usec, u32 beacon_interval);
__le32 iwl_add_beacon_time(struct iwl_priv *priv, u32 base,
......
/******************************************************************************
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
* USA
*
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*****************************************************************************/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/sched.h>
#include <net/mac80211.h>
#include "iwl-dev.h" /* FIXME: remove */
#include "iwl-debug.h"
#include "iwl-eeprom.h"
#include "iwl-core.h"
const char *get_cmd_string(u8 cmd)
{
switch (cmd) {
IWL_CMD(REPLY_ALIVE);
IWL_CMD(REPLY_ERROR);
IWL_CMD(REPLY_RXON);
IWL_CMD(REPLY_RXON_ASSOC);
IWL_CMD(REPLY_QOS_PARAM);
IWL_CMD(REPLY_RXON_TIMING);
IWL_CMD(REPLY_ADD_STA);
IWL_CMD(REPLY_REMOVE_STA);
IWL_CMD(REPLY_REMOVE_ALL_STA);
IWL_CMD(REPLY_TXFIFO_FLUSH);
IWL_CMD(REPLY_WEPKEY);
IWL_CMD(REPLY_TX);
IWL_CMD(REPLY_LEDS_CMD);
IWL_CMD(REPLY_TX_LINK_QUALITY_CMD);
IWL_CMD(COEX_PRIORITY_TABLE_CMD);
IWL_CMD(COEX_MEDIUM_NOTIFICATION);
IWL_CMD(COEX_EVENT_CMD);
IWL_CMD(REPLY_QUIET_CMD);
IWL_CMD(REPLY_CHANNEL_SWITCH);
IWL_CMD(CHANNEL_SWITCH_NOTIFICATION);
IWL_CMD(REPLY_SPECTRUM_MEASUREMENT_CMD);
IWL_CMD(SPECTRUM_MEASURE_NOTIFICATION);
IWL_CMD(POWER_TABLE_CMD);
IWL_CMD(PM_SLEEP_NOTIFICATION);
IWL_CMD(PM_DEBUG_STATISTIC_NOTIFIC);
IWL_CMD(REPLY_SCAN_CMD);
IWL_CMD(REPLY_SCAN_ABORT_CMD);
IWL_CMD(SCAN_START_NOTIFICATION);
IWL_CMD(SCAN_RESULTS_NOTIFICATION);
IWL_CMD(SCAN_COMPLETE_NOTIFICATION);
IWL_CMD(BEACON_NOTIFICATION);
IWL_CMD(REPLY_TX_BEACON);
IWL_CMD(WHO_IS_AWAKE_NOTIFICATION);
IWL_CMD(QUIET_NOTIFICATION);
IWL_CMD(REPLY_TX_PWR_TABLE_CMD);
IWL_CMD(MEASURE_ABORT_NOTIFICATION);
IWL_CMD(REPLY_BT_CONFIG);
IWL_CMD(REPLY_STATISTICS_CMD);
IWL_CMD(STATISTICS_NOTIFICATION);
IWL_CMD(REPLY_CARD_STATE_CMD);
IWL_CMD(CARD_STATE_NOTIFICATION);
IWL_CMD(MISSED_BEACONS_NOTIFICATION);
IWL_CMD(REPLY_CT_KILL_CONFIG_CMD);
IWL_CMD(SENSITIVITY_CMD);
IWL_CMD(REPLY_PHY_CALIBRATION_CMD);
IWL_CMD(REPLY_RX_PHY_CMD);
IWL_CMD(REPLY_RX_MPDU_CMD);
IWL_CMD(REPLY_RX);
IWL_CMD(REPLY_COMPRESSED_BA);
IWL_CMD(CALIBRATION_CFG_CMD);
IWL_CMD(CALIBRATION_RES_NOTIFICATION);
IWL_CMD(CALIBRATION_COMPLETE_NOTIFICATION);
IWL_CMD(REPLY_TX_POWER_DBM_CMD);
IWL_CMD(TEMPERATURE_NOTIFICATION);
IWL_CMD(TX_ANT_CONFIGURATION_CMD);
IWL_CMD(REPLY_BT_COEX_PROFILE_NOTIF);
IWL_CMD(REPLY_BT_COEX_PRIO_TABLE);
IWL_CMD(REPLY_BT_COEX_PROT_ENV);
IWL_CMD(REPLY_WIPAN_PARAMS);
IWL_CMD(REPLY_WIPAN_RXON);
IWL_CMD(REPLY_WIPAN_RXON_TIMING);
IWL_CMD(REPLY_WIPAN_RXON_ASSOC);
IWL_CMD(REPLY_WIPAN_QOS_PARAM);
IWL_CMD(REPLY_WIPAN_WEPKEY);
IWL_CMD(REPLY_WIPAN_P2P_CHANNEL_SWITCH);
IWL_CMD(REPLY_WIPAN_NOA_NOTIFICATION);
IWL_CMD(REPLY_WIPAN_DEACTIVATION_COMPLETE);
default:
return "UNKNOWN";
}
}
#define HOST_COMPLETE_TIMEOUT (2 * HZ)
static void iwl_generic_cmd_callback(struct iwl_priv *priv,
struct iwl_device_cmd *cmd,
struct iwl_rx_packet *pkt)
{
if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) {
IWL_ERR(priv, "Bad return from %s (0x%08X)\n",
get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags);
return;
}
#ifdef CONFIG_IWLWIFI_DEBUG
switch (cmd->hdr.cmd) {
case REPLY_TX_LINK_QUALITY_CMD:
case SENSITIVITY_CMD:
IWL_DEBUG_HC_DUMP(priv, "back from %s (0x%08X)\n",
get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags);
break;
default:
IWL_DEBUG_HC(priv, "back from %s (0x%08X)\n",
get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags);
}
#endif
}
static int iwl_send_cmd_async(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
{
int ret;
/* An asynchronous command can not expect an SKB to be set. */
if (WARN_ON(cmd->flags & CMD_WANT_SKB))
return -EINVAL;
/* Assign a generic callback if one is not provided */
if (!cmd->callback)
cmd->callback = iwl_generic_cmd_callback;
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return -EBUSY;
ret = iwl_enqueue_hcmd(priv, cmd);
if (ret < 0) {
IWL_ERR(priv, "Error sending %s: enqueue_hcmd failed: %d\n",
get_cmd_string(cmd->id), ret);
return ret;
}
return 0;
}
static int iwl_send_cmd_sync(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
{
int cmd_idx;
int ret;
lockdep_assert_held(&priv->mutex);
/* A synchronous command can not have a callback set. */
if (WARN_ON(cmd->callback))
return -EINVAL;
IWL_DEBUG_INFO(priv, "Attempting to send sync command %s\n",
get_cmd_string(cmd->id));
set_bit(STATUS_HCMD_ACTIVE, &priv->status);
IWL_DEBUG_INFO(priv, "Setting HCMD_ACTIVE for command %s\n",
get_cmd_string(cmd->id));
cmd_idx = iwl_enqueue_hcmd(priv, cmd);
if (cmd_idx < 0) {
ret = cmd_idx;
clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
IWL_ERR(priv, "Error sending %s: enqueue_hcmd failed: %d\n",
get_cmd_string(cmd->id), ret);
return ret;
}
ret = wait_event_interruptible_timeout(priv->wait_command_queue,
!test_bit(STATUS_HCMD_ACTIVE, &priv->status),
HOST_COMPLETE_TIMEOUT);
if (!ret) {
if (test_bit(STATUS_HCMD_ACTIVE, &priv->status)) {
IWL_ERR(priv,
"Error sending %s: time out after %dms.\n",
get_cmd_string(cmd->id),
jiffies_to_msecs(HOST_COMPLETE_TIMEOUT));
clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
IWL_DEBUG_INFO(priv, "Clearing HCMD_ACTIVE for command %s\n",
get_cmd_string(cmd->id));
ret = -ETIMEDOUT;
goto cancel;
}
}
if (test_bit(STATUS_RF_KILL_HW, &priv->status)) {
IWL_ERR(priv, "Command %s aborted: RF KILL Switch\n",
get_cmd_string(cmd->id));
ret = -ECANCELED;
goto fail;
}
if (test_bit(STATUS_FW_ERROR, &priv->status)) {
IWL_ERR(priv, "Command %s failed: FW Error\n",
get_cmd_string(cmd->id));
ret = -EIO;
goto fail;
}
if ((cmd->flags & CMD_WANT_SKB) && !cmd->reply_page) {
IWL_ERR(priv, "Error: Response NULL in '%s'\n",
get_cmd_string(cmd->id));
ret = -EIO;
goto cancel;
}
return 0;
cancel:
if (cmd->flags & CMD_WANT_SKB) {
/*
* Cancel the CMD_WANT_SKB flag for the cmd in the
* TX cmd queue. Otherwise in case the cmd comes
* in later, it will possibly set an invalid
* address (cmd->meta.source).
*/
priv->txq[priv->cmd_queue].meta[cmd_idx].flags &=
~CMD_WANT_SKB;
}
fail:
if (cmd->reply_page) {
iwl_free_pages(priv, cmd->reply_page);
cmd->reply_page = 0;
}
return ret;
}
int iwl_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
{
if (cmd->flags & CMD_ASYNC)
return iwl_send_cmd_async(priv, cmd);
return iwl_send_cmd_sync(priv, cmd);
}
int iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id, u32 flags, u16 len,
const void *data)
{
struct iwl_host_cmd cmd = {
.id = id,
.len = { len, },
.data = { data, },
.flags = flags,
};
return iwl_send_cmd(priv, &cmd);
}
......@@ -32,11 +32,31 @@
/*This file includes the declaration that are internal to the
* trans_pcie layer */
/*****************************************************
* RX
******************************************************/
void iwl_bg_rx_replenish(struct work_struct *data);
void iwl_irq_tasklet(struct iwl_priv *priv);
void iwlagn_rx_replenish(struct iwl_priv *priv);
void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv,
struct iwl_rx_queue *q);
/*****************************************************
* TX / HCMD
******************************************************/
void iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq);
void iwlagn_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq,
int index);
int iwlagn_txq_attach_buf_to_tfd(struct iwl_priv *priv,
struct iwl_tx_queue *txq,
dma_addr_t addr, u16 len, u8 reset);
int iwl_queue_init(struct iwl_priv *priv, struct iwl_queue *q,
int count, int slots_num, u32 id);
int iwl_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
int __must_check iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id, u32 flags,
u16 len, const void *data);
void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
#endif /* __iwl_trans_int_pcie_h__ */
......@@ -26,18 +26,17 @@
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
#include <linux/etherdevice.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/sched.h>
#include <net/mac80211.h>
#include "iwl-eeprom.h"
#include "iwl-agn.h"
#include "iwl-dev.h"
#include "iwl-core.h"
#include "iwl-sta.h"
#include "iwl-io.h"
#include "iwl-helpers.h"
#include "iwl-trans-int-pcie.h"
/**
* iwl_txq_update_write_ptr - Send new write index to hardware
......@@ -126,7 +125,7 @@ static inline u8 iwl_tfd_get_num_tbs(struct iwl_tfd *tfd)
}
static void iwlagn_unmap_tfd(struct iwl_priv *priv, struct iwl_cmd_meta *meta,
struct iwl_tfd *tfd, enum dma_data_direction dma_dir)
struct iwl_tfd *tfd, enum dma_data_direction dma_dir)
{
int i;
int num_tbs;
......@@ -303,7 +302,7 @@ int iwl_queue_init(struct iwl_priv *priv, struct iwl_queue *q,
* failed. On success, it turns the index (> 0) of command in the
* command queue.
*/
int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
static int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
{
struct iwl_tx_queue *txq = &priv->txq[priv->cmd_queue];
struct iwl_queue *q = &txq->q;
......@@ -574,3 +573,236 @@ void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
spin_unlock_irqrestore(&priv->hcmd_lock, flags);
}
const char *get_cmd_string(u8 cmd)
{
switch (cmd) {
IWL_CMD(REPLY_ALIVE);
IWL_CMD(REPLY_ERROR);
IWL_CMD(REPLY_RXON);
IWL_CMD(REPLY_RXON_ASSOC);
IWL_CMD(REPLY_QOS_PARAM);
IWL_CMD(REPLY_RXON_TIMING);
IWL_CMD(REPLY_ADD_STA);
IWL_CMD(REPLY_REMOVE_STA);
IWL_CMD(REPLY_REMOVE_ALL_STA);
IWL_CMD(REPLY_TXFIFO_FLUSH);
IWL_CMD(REPLY_WEPKEY);
IWL_CMD(REPLY_TX);
IWL_CMD(REPLY_LEDS_CMD);
IWL_CMD(REPLY_TX_LINK_QUALITY_CMD);
IWL_CMD(COEX_PRIORITY_TABLE_CMD);
IWL_CMD(COEX_MEDIUM_NOTIFICATION);
IWL_CMD(COEX_EVENT_CMD);
IWL_CMD(REPLY_QUIET_CMD);
IWL_CMD(REPLY_CHANNEL_SWITCH);
IWL_CMD(CHANNEL_SWITCH_NOTIFICATION);
IWL_CMD(REPLY_SPECTRUM_MEASUREMENT_CMD);
IWL_CMD(SPECTRUM_MEASURE_NOTIFICATION);
IWL_CMD(POWER_TABLE_CMD);
IWL_CMD(PM_SLEEP_NOTIFICATION);
IWL_CMD(PM_DEBUG_STATISTIC_NOTIFIC);
IWL_CMD(REPLY_SCAN_CMD);
IWL_CMD(REPLY_SCAN_ABORT_CMD);
IWL_CMD(SCAN_START_NOTIFICATION);
IWL_CMD(SCAN_RESULTS_NOTIFICATION);
IWL_CMD(SCAN_COMPLETE_NOTIFICATION);
IWL_CMD(BEACON_NOTIFICATION);
IWL_CMD(REPLY_TX_BEACON);
IWL_CMD(WHO_IS_AWAKE_NOTIFICATION);
IWL_CMD(QUIET_NOTIFICATION);
IWL_CMD(REPLY_TX_PWR_TABLE_CMD);
IWL_CMD(MEASURE_ABORT_NOTIFICATION);
IWL_CMD(REPLY_BT_CONFIG);
IWL_CMD(REPLY_STATISTICS_CMD);
IWL_CMD(STATISTICS_NOTIFICATION);
IWL_CMD(REPLY_CARD_STATE_CMD);
IWL_CMD(CARD_STATE_NOTIFICATION);
IWL_CMD(MISSED_BEACONS_NOTIFICATION);
IWL_CMD(REPLY_CT_KILL_CONFIG_CMD);
IWL_CMD(SENSITIVITY_CMD);
IWL_CMD(REPLY_PHY_CALIBRATION_CMD);
IWL_CMD(REPLY_RX_PHY_CMD);
IWL_CMD(REPLY_RX_MPDU_CMD);
IWL_CMD(REPLY_RX);
IWL_CMD(REPLY_COMPRESSED_BA);
IWL_CMD(CALIBRATION_CFG_CMD);
IWL_CMD(CALIBRATION_RES_NOTIFICATION);
IWL_CMD(CALIBRATION_COMPLETE_NOTIFICATION);
IWL_CMD(REPLY_TX_POWER_DBM_CMD);
IWL_CMD(TEMPERATURE_NOTIFICATION);
IWL_CMD(TX_ANT_CONFIGURATION_CMD);
IWL_CMD(REPLY_BT_COEX_PROFILE_NOTIF);
IWL_CMD(REPLY_BT_COEX_PRIO_TABLE);
IWL_CMD(REPLY_BT_COEX_PROT_ENV);
IWL_CMD(REPLY_WIPAN_PARAMS);
IWL_CMD(REPLY_WIPAN_RXON);
IWL_CMD(REPLY_WIPAN_RXON_TIMING);
IWL_CMD(REPLY_WIPAN_RXON_ASSOC);
IWL_CMD(REPLY_WIPAN_QOS_PARAM);
IWL_CMD(REPLY_WIPAN_WEPKEY);
IWL_CMD(REPLY_WIPAN_P2P_CHANNEL_SWITCH);
IWL_CMD(REPLY_WIPAN_NOA_NOTIFICATION);
IWL_CMD(REPLY_WIPAN_DEACTIVATION_COMPLETE);
default:
return "UNKNOWN";
}
}
#define HOST_COMPLETE_TIMEOUT (2 * HZ)
static void iwl_generic_cmd_callback(struct iwl_priv *priv,
struct iwl_device_cmd *cmd,
struct iwl_rx_packet *pkt)
{
if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) {
IWL_ERR(priv, "Bad return from %s (0x%08X)\n",
get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags);
return;
}
#ifdef CONFIG_IWLWIFI_DEBUG
switch (cmd->hdr.cmd) {
case REPLY_TX_LINK_QUALITY_CMD:
case SENSITIVITY_CMD:
IWL_DEBUG_HC_DUMP(priv, "back from %s (0x%08X)\n",
get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags);
break;
default:
IWL_DEBUG_HC(priv, "back from %s (0x%08X)\n",
get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags);
}
#endif
}
static int iwl_send_cmd_async(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
{
int ret;
/* An asynchronous command can not expect an SKB to be set. */
if (WARN_ON(cmd->flags & CMD_WANT_SKB))
return -EINVAL;
/* Assign a generic callback if one is not provided */
if (!cmd->callback)
cmd->callback = iwl_generic_cmd_callback;
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return -EBUSY;
ret = iwl_enqueue_hcmd(priv, cmd);
if (ret < 0) {
IWL_ERR(priv, "Error sending %s: enqueue_hcmd failed: %d\n",
get_cmd_string(cmd->id), ret);
return ret;
}
return 0;
}
static int iwl_send_cmd_sync(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
{
int cmd_idx;
int ret;
lockdep_assert_held(&priv->mutex);
/* A synchronous command can not have a callback set. */
if (WARN_ON(cmd->callback))
return -EINVAL;
IWL_DEBUG_INFO(priv, "Attempting to send sync command %s\n",
get_cmd_string(cmd->id));
set_bit(STATUS_HCMD_ACTIVE, &priv->status);
IWL_DEBUG_INFO(priv, "Setting HCMD_ACTIVE for command %s\n",
get_cmd_string(cmd->id));
cmd_idx = iwl_enqueue_hcmd(priv, cmd);
if (cmd_idx < 0) {
ret = cmd_idx;
clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
IWL_ERR(priv, "Error sending %s: enqueue_hcmd failed: %d\n",
get_cmd_string(cmd->id), ret);
return ret;
}
ret = wait_event_interruptible_timeout(priv->wait_command_queue,
!test_bit(STATUS_HCMD_ACTIVE, &priv->status),
HOST_COMPLETE_TIMEOUT);
if (!ret) {
if (test_bit(STATUS_HCMD_ACTIVE, &priv->status)) {
IWL_ERR(priv,
"Error sending %s: time out after %dms.\n",
get_cmd_string(cmd->id),
jiffies_to_msecs(HOST_COMPLETE_TIMEOUT));
clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
IWL_DEBUG_INFO(priv, "Clearing HCMD_ACTIVE for command"
"%s\n", get_cmd_string(cmd->id));
ret = -ETIMEDOUT;
goto cancel;
}
}
if (test_bit(STATUS_RF_KILL_HW, &priv->status)) {
IWL_ERR(priv, "Command %s aborted: RF KILL Switch\n",
get_cmd_string(cmd->id));
ret = -ECANCELED;
goto fail;
}
if (test_bit(STATUS_FW_ERROR, &priv->status)) {
IWL_ERR(priv, "Command %s failed: FW Error\n",
get_cmd_string(cmd->id));
ret = -EIO;
goto fail;
}
if ((cmd->flags & CMD_WANT_SKB) && !cmd->reply_page) {
IWL_ERR(priv, "Error: Response NULL in '%s'\n",
get_cmd_string(cmd->id));
ret = -EIO;
goto cancel;
}
return 0;
cancel:
if (cmd->flags & CMD_WANT_SKB) {