Merge branch 'perf/core' into perf/uprobes

Merge in latest upstream (and the latest perf development tree),
to prepare for tooling changes, and also to pick up v3.4 MM
changes that the uprobes code needs to take care of.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 140 insertions, 331 deletions

diff --git a/drivers/net/wireless/iwlegacy/common.h b/drivers/net/wireless/iwlegacy/common.h
index abfa388588b..5f5017767b9 100644
--- a/drivers/net/wireless/iwlegacy/common.h
+++ b/drivers/net/wireless/iwlegacy/common.h
@@ -143,12 +143,6 @@ struct il_queue {
 				 * space less than this */
 };
 
-/* One for each TFD */
-struct il_tx_info {
-	struct sk_buff *skb;
-	struct il_rxon_context *ctx;
-};
-
 /**
  * struct il_tx_queue - Tx Queue for DMA
  * @q: generic Rx/Tx queue descriptor
@@ -156,7 +150,7 @@ struct il_tx_info {
  * @cmd: array of command/TX buffer pointers
  * @meta: array of meta data for each command/tx buffer
  * @dma_addr_cmd: physical address of cmd/tx buffer array
- * @txb: array of per-TFD driver data
+ * @skbs: array of per-TFD socket buffer pointers
  * @time_stamp: time (in jiffies) of last read_ptr change
  * @need_update: indicates need to update read/write idx
  * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
@@ -172,7 +166,7 @@ struct il_tx_queue {
 	void *tfds;
 	struct il_device_cmd **cmd;
 	struct il_cmd_meta *meta;
-	struct il_tx_info *txb;
+	struct sk_buff **skbs;
 	unsigned long time_stamp;
 	u8 need_update;
 	u8 sched_retry;
@@ -431,12 +425,6 @@ struct il_eeprom_calib_info {
 
 #define EEPROM_REGULATORY_BAND_NO_HT40			(0)
 
-struct il_eeprom_ops {
-	const u32 regulatory_bands[7];
-	int (*acquire_semaphore) (struct il_priv *il);
-	void (*release_semaphore) (struct il_priv *il);
-};
-
 int il_eeprom_init(struct il_priv *il);
 void il_eeprom_free(struct il_priv *il);
 const u8 *il_eeprom_query_addr(const struct il_priv *il, size_t offset);
@@ -735,13 +723,12 @@ struct il_qos_info {
 struct il_station_entry {
 	struct il_addsta_cmd sta;
 	struct il_tid_data tid[MAX_TID_COUNT];
-	u8 used, ctxid;
+	u8 used;
 	struct il_hw_key keyinfo;
 	struct il_link_quality_cmd *lq;
 };
 
 struct il_station_priv_common {
-	struct il_rxon_context *ctx;
 	u8 sta_id;
 };
 
@@ -752,7 +739,6 @@ struct il_station_priv_common {
  * space for us to put data into.
  */
 struct il_vif_priv {
-	struct il_rxon_context *ctx;
 	u8 ibss_bssid_sta_id;
 };
 
@@ -816,6 +802,7 @@ struct il_sensitivity_ranges {
 
 /**
  * struct il_hw_params
+ * @bcast_id: f/w broadcast station ID
  * @max_txq_num: Max # Tx queues supported
  * @dma_chnl_num: Number of Tx DMA/FIFO channels
  * @scd_bc_tbls_size: size of scheduler byte count tables
@@ -836,6 +823,7 @@ struct il_sensitivity_ranges {
  * @struct il_sensitivity_ranges: range of sensitivity values
  */
 struct il_hw_params {
+	u8 bcast_id;
 	u8 max_txq_num;
 	u8 dma_chnl_num;
 	u16 scd_bc_tbls_size;
@@ -968,26 +956,6 @@ enum il4965_chain_noise_state {
 	IL_CHAIN_NOISE_DONE,
 };
 
-enum il4965_calib_enabled_state {
-	IL_CALIB_DISABLED = 0,	/* must be 0 */
-	IL_CALIB_ENABLED = 1,
-};
-
-/*
- * enum il_calib
- * defines the order in which results of initial calibrations
- * should be sent to the runtime uCode
- */
-enum il_calib {
-	IL_CALIB_MAX,
-};
-
-/* Opaque calibration results */
-struct il_calib_result {
-	void *buf;
-	size_t buf_len;
-};
-
 enum ucode_type {
 	UCODE_NONE = 0,
 	UCODE_INIT,
@@ -1152,55 +1120,6 @@ struct il_force_reset {
 
 struct il_rxon_context {
 	struct ieee80211_vif *vif;
-
-	const u8 *ac_to_fifo;
-	const u8 *ac_to_queue;
-	u8 mcast_queue;
-
-	/*
-	 * We could use the vif to indicate active, but we
-	 * also need it to be active during disabling when
-	 * we already removed the vif for type setting.
-	 */
-	bool always_active, is_active;
-
-	bool ht_need_multiple_chains;
-
-	int ctxid;
-
-	u32 interface_modes, exclusive_interface_modes;
-	u8 unused_devtype, ap_devtype, ibss_devtype, station_devtype;
-
-	/*
-	 * We declare this const so it can only be
-	 * changed via explicit cast within the
-	 * routines that actually update the physical
-	 * hardware.
-	 */
-	const struct il_rxon_cmd active;
-	struct il_rxon_cmd staging;
-
-	struct il_rxon_time_cmd timing;
-
-	struct il_qos_info qos_data;
-
-	u8 bcast_sta_id, ap_sta_id;
-
-	u8 rxon_cmd, rxon_assoc_cmd, rxon_timing_cmd;
-	u8 qos_cmd;
-	u8 wep_key_cmd;
-
-	struct il_wep_key wep_keys[WEP_KEYS_MAX];
-	u8 key_mapping_keys;
-
-	__le32 station_flags;
-
-	struct {
-		bool non_gf_sta_present;
-		u8 protection;
-		bool enabled, is_40mhz;
-		u8 extension_chan_offset;
-	} ht;
 };
 
 struct il_power_mgr {
@@ -1211,12 +1130,15 @@ struct il_power_mgr {
 };
 
 struct il_priv {
-
-	/* ieee device used by generic ieee processing code */
 	struct ieee80211_hw *hw;
 	struct ieee80211_channel *ieee_channels;
 	struct ieee80211_rate *ieee_rates;
+
 	struct il_cfg *cfg;
+	const struct il_ops *ops;
+#ifdef CONFIG_IWLEGACY_DEBUGFS
+	const struct il_debugfs_ops *debugfs_ops;
+#endif
 
 	/* temporary frame storage list */
 	struct list_head free_frames;
@@ -1253,9 +1175,6 @@ struct il_priv {
 	s32 temperature;	/* degrees Kelvin */
 	s32 last_temperature;
 
-	/* init calibration results */
-	struct il_calib_result calib_results[IL_CALIB_MAX];
-
 	/* Scan related variables */
 	unsigned long scan_start;
 	unsigned long scan_start_tsf;
@@ -1304,7 +1223,28 @@ struct il_priv {
 	u8 ucode_write_complete;	/* the image write is complete */
 	char firmware_name[25];
 
-	struct il_rxon_context ctx;
+	struct ieee80211_vif *vif;
+
+	struct il_qos_info qos_data;
+
+	struct {
+		bool enabled;
+		bool is_40mhz;
+		bool non_gf_sta_present;
+		u8 protection;
+		u8 extension_chan_offset;
+	} ht;
+
+	/*
+	 * We declare this const so it can only be
+	 * changed via explicit cast within the
+	 * routines that actually update the physical
+	 * hardware.
+	 */
+	const struct il_rxon_cmd active;
+	struct il_rxon_cmd staging;
+
+	struct il_rxon_time_cmd timing;
 
 	__le16 switch_channel;
 
@@ -1427,6 +1367,9 @@ struct il_priv {
 			u8 phy_calib_chain_noise_reset_cmd;
 			u8 phy_calib_chain_noise_gain_cmd;
 
+			u8 key_mapping_keys;
+			struct il_wep_key wep_keys[WEP_KEYS_MAX];
+
 			struct il_notif_stats stats;
 #ifdef CONFIG_IWLEGACY_DEBUGFS
 			struct il_notif_stats accum_stats;
@@ -1449,7 +1392,7 @@ struct il_priv {
 	struct work_struct rx_replenish;
 	struct work_struct abort_scan;
 
-	struct il_rxon_context *beacon_ctx;
+	bool beacon_enabled;
 	struct sk_buff *beacon_skb;
 
 	struct work_struct tx_flush;
@@ -1507,30 +1450,10 @@ il_txq_ctx_deactivate(struct il_priv *il, int txq_id)
 	clear_bit(txq_id, &il->txq_ctx_active_msk);
 }
 
-static inline struct ieee80211_hdr *
-il_tx_queue_get_hdr(struct il_priv *il, int txq_id, int idx)
-{
-	if (il->txq[txq_id].txb[idx].skb)
-		return (struct ieee80211_hdr *)il->txq[txq_id].txb[idx].skb->
-		    data;
-	return NULL;
-}
-
-static inline struct il_rxon_context *
-il_rxon_ctx_from_vif(struct ieee80211_vif *vif)
-{
-	struct il_vif_priv *vif_priv = (void *)vif->drv_priv;
-
-	return vif_priv->ctx;
-}
-
-#define for_each_context(il, _ctx) \
-	for (_ctx = &il->ctx; _ctx == &il->ctx; _ctx++)
-
 static inline int
 il_is_associated(struct il_priv *il)
 {
-	return (il->ctx.active.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
+	return (il->active.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
 }
 
 static inline int
@@ -1540,12 +1463,6 @@ il_is_any_associated(struct il_priv *il)
 }
 
 static inline int
-il_is_associated_ctx(struct il_rxon_context *ctx)
-{
-	return (ctx->active.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
-}
-
-static inline int
 il_is_channel_valid(const struct il_channel_info *ch_info)
 {
 	if (ch_info == NULL)
@@ -1613,25 +1530,6 @@ il_free_pages(struct il_priv *il, unsigned long page)
 #define IL_RX_BUF_SIZE_4K (4 * 1024)
 #define IL_RX_BUF_SIZE_8K (8 * 1024)
 
-struct il_hcmd_ops {
-	int (*rxon_assoc) (struct il_priv *il, struct il_rxon_context *ctx);
-	int (*commit_rxon) (struct il_priv *il, struct il_rxon_context *ctx);
-	void (*set_rxon_chain) (struct il_priv *il,
-				struct il_rxon_context *ctx);
-};
-
-struct il_hcmd_utils_ops {
-	u16(*get_hcmd_size) (u8 cmd_id, u16 len);
-	u16(*build_addsta_hcmd) (const struct il_addsta_cmd *cmd, u8 *data);
-	int (*request_scan) (struct il_priv *il, struct ieee80211_vif *vif);
-	void (*post_scan) (struct il_priv *il);
-};
-
-struct il_apm_ops {
-	int (*init) (struct il_priv *il);
-	void (*config) (struct il_priv *il);
-};
-
 #ifdef CONFIG_IWLEGACY_DEBUGFS
 struct il_debugfs_ops {
 	ssize_t(*rx_stats_read) (struct file *file, char __user *user_buf,
@@ -1644,13 +1542,7 @@ struct il_debugfs_ops {
 };
 #endif
 
-struct il_temp_ops {
-	void (*temperature) (struct il_priv *il);
-};
-
-struct il_lib_ops {
-	/* set hw dependent parameters */
-	int (*set_hw_params) (struct il_priv *il);
+struct il_ops {
 	/* Handling TX */
 	void (*txq_update_byte_cnt_tbl) (struct il_priv *il,
 					 struct il_tx_queue *txq,
@@ -1660,8 +1552,6 @@ struct il_lib_ops {
 				      u16 len, u8 reset, u8 pad);
 	void (*txq_free_tfd) (struct il_priv *il, struct il_tx_queue *txq);
 	int (*txq_init) (struct il_priv *il, struct il_tx_queue *txq);
-	/* setup Rx handler */
-	void (*handler_setup) (struct il_priv *il);
 	/* alive notification after init uCode load */
 	void (*init_alive_start) (struct il_priv *il);
 	/* check validity of rtc data address */
@@ -1674,45 +1564,33 @@ struct il_lib_ops {
 	int (*set_channel_switch) (struct il_priv *il,
 				   struct ieee80211_channel_switch *ch_switch);
 	/* power management */
-	struct il_apm_ops apm_ops;
+	int (*apm_init) (struct il_priv *il);
 
-	/* power */
+	/* tx power */
 	int (*send_tx_power) (struct il_priv *il);
 	void (*update_chain_flags) (struct il_priv *il);
 
 	/* eeprom operations */
-	struct il_eeprom_ops eeprom_ops;
+	int (*eeprom_acquire_semaphore) (struct il_priv *il);
+	void (*eeprom_release_semaphore) (struct il_priv *il);
 
-	/* temperature */
-	struct il_temp_ops temp_ops;
-
-#ifdef CONFIG_IWLEGACY_DEBUGFS
-	struct il_debugfs_ops debugfs_ops;
-#endif
+	int (*rxon_assoc) (struct il_priv *il);
+	int (*commit_rxon) (struct il_priv *il);
+	void (*set_rxon_chain) (struct il_priv *il);
 
-};
-
-struct il_led_ops {
-	int (*cmd) (struct il_priv *il, struct il_led_cmd *led_cmd);
-};
+	u16(*get_hcmd_size) (u8 cmd_id, u16 len);
+	u16(*build_addsta_hcmd) (const struct il_addsta_cmd *cmd, u8 *data);
 
-struct il_legacy_ops {
+	int (*request_scan) (struct il_priv *il, struct ieee80211_vif *vif);
+	void (*post_scan) (struct il_priv *il);
 	void (*post_associate) (struct il_priv *il);
 	void (*config_ap) (struct il_priv *il);
 	/* station management */
 	int (*update_bcast_stations) (struct il_priv *il);
 	int (*manage_ibss_station) (struct il_priv *il,
 				    struct ieee80211_vif *vif, bool add);
-};
 
-struct il_ops {
-	const struct il_lib_ops *lib;
-	const struct il_hcmd_ops *hcmd;
-	const struct il_hcmd_utils_ops *utils;
-	const struct il_led_ops *led;
-	const struct il_nic_ops *nic;
-	const struct il_legacy_ops *legacy;
-	const struct ieee80211_ops *ieee80211_ops;
+	int (*send_led_cmd) (struct il_priv *il, struct il_led_cmd *led_cmd);
 };
 
 struct il_mod_params {
@@ -1725,37 +1603,6 @@ struct il_mod_params {
 	int restart_fw;		/* def: 1 = restart firmware */
 };
 
-/*
- * @led_compensation: compensate on the led on/off time per HW according
- *	to the deviation to achieve the desired led frequency.
- *	The detail algorithm is described in common.c
- * @chain_noise_num_beacons: number of beacons used to compute chain noise
- * @wd_timeout: TX queues watchdog timeout
- * @temperature_kelvin: temperature report by uCode in kelvin
- * @ucode_tracing: support ucode continuous tracing
- * @sensitivity_calib_by_driver: driver has the capability to perform
- *	sensitivity calibration operation
- * @chain_noise_calib_by_driver: driver has the capability to perform
- *	chain noise calibration operation
- */
-struct il_base_params {
-	int eeprom_size;
-	int num_of_queues;	/* def: HW dependent */
-	int num_of_ampdu_queues;	/* def: HW dependent */
-	/* for il_apm_init() */
-	u32 pll_cfg_val;
-	bool set_l0s;
-	bool use_bsm;
-
-	u16 led_compensation;
-	int chain_noise_num_beacons;
-	unsigned int wd_timeout;
-	bool temperature_kelvin;
-	const bool ucode_tracing;
-	const bool sensitivity_calib_by_driver;
-	const bool chain_noise_calib_by_driver;
-};
-
 #define IL_LED_SOLID 11
 #define IL_DEF_LED_INTRVL cpu_to_le32(1000)
 
@@ -1821,7 +1668,6 @@ struct il_cfg {
 	unsigned int sku;
 	u16 eeprom_ver;
 	u16 eeprom_calib_ver;
-	const struct il_ops *ops;
 	/* module based parameters which can be set from modprobe cmd */
 	const struct il_mod_params *mod_params;
 	/* params not likely to change within a device family */
@@ -1829,31 +1675,45 @@ struct il_cfg {
 	/* params likely to change within a device family */
 	u8 scan_rx_antennas[IEEE80211_NUM_BANDS];
 	enum il_led_mode led_mode;
+
+	int eeprom_size;
+	int num_of_queues;		/* def: HW dependent */
+	int num_of_ampdu_queues;	/* def: HW dependent */
+	/* for il_apm_init() */
+	u32 pll_cfg_val;
+	bool set_l0s;
+	bool use_bsm;
+
+	u16 led_compensation;
+	int chain_noise_num_beacons;
+	unsigned int wd_timeout;
+	bool temperature_kelvin;
+	const bool ucode_tracing;
+	const bool sensitivity_calib_by_driver;
+	const bool chain_noise_calib_by_driver;
+
+	const u32 regulatory_bands[7];
 };
 
 /***************************
  *   L i b                 *
  ***************************/
 
-struct ieee80211_hw *il_alloc_all(struct il_cfg *cfg);
 int il_mac_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 		   u16 queue, const struct ieee80211_tx_queue_params *params);
 int il_mac_tx_last_beacon(struct ieee80211_hw *hw);
 
-void il_set_rxon_hwcrypto(struct il_priv *il, struct il_rxon_context *ctx,
-			  int hw_decrypt);
-int il_check_rxon_cmd(struct il_priv *il, struct il_rxon_context *ctx);
-int il_full_rxon_required(struct il_priv *il, struct il_rxon_context *ctx);
-int il_set_rxon_channel(struct il_priv *il, struct ieee80211_channel *ch,
-			struct il_rxon_context *ctx);
-void il_set_flags_for_band(struct il_priv *il, struct il_rxon_context *ctx,
-			   enum ieee80211_band band, struct ieee80211_vif *vif);
+void il_set_rxon_hwcrypto(struct il_priv *il, int hw_decrypt);
+int il_check_rxon_cmd(struct il_priv *il);
+int il_full_rxon_required(struct il_priv *il);
+int il_set_rxon_channel(struct il_priv *il, struct ieee80211_channel *ch);
+void il_set_flags_for_band(struct il_priv *il, enum ieee80211_band band,
+			   struct ieee80211_vif *vif);
 u8 il_get_single_channel_number(struct il_priv *il, enum ieee80211_band band);
 void il_set_rxon_ht(struct il_priv *il, struct il_ht_config *ht_conf);
-bool il_is_ht40_tx_allowed(struct il_priv *il, struct il_rxon_context *ctx,
+bool il_is_ht40_tx_allowed(struct il_priv *il,
 			   struct ieee80211_sta_ht_cap *ht_cap);
-void il_connection_init_rx_config(struct il_priv *il,
-				  struct il_rxon_context *ctx);
+void il_connection_init_rx_config(struct il_priv *il);
 void il_set_rate(struct il_priv *il);
 int il_set_decrypted_flag(struct il_priv *il, struct ieee80211_hdr *hdr,
 			  u32 decrypt_res, struct ieee80211_rx_status *stats);
@@ -1864,60 +1724,24 @@ void il_mac_remove_interface(struct ieee80211_hw *hw,
 int il_mac_change_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 			    enum nl80211_iftype newtype, bool newp2p);
 int il_alloc_txq_mem(struct il_priv *il);
-void il_txq_mem(struct il_priv *il);
+void il_free_txq_mem(struct il_priv *il);
 
 #ifdef CONFIG_IWLEGACY_DEBUGFS
-int il_alloc_traffic_mem(struct il_priv *il);
-void il_free_traffic_mem(struct il_priv *il);
-void il_reset_traffic_log(struct il_priv *il);
-void il_dbg_log_tx_data_frame(struct il_priv *il, u16 length,
-			      struct ieee80211_hdr *header);
-void il_dbg_log_rx_data_frame(struct il_priv *il, u16 length,
-			      struct ieee80211_hdr *header);
-const char *il_get_mgmt_string(int cmd);
-const char *il_get_ctrl_string(int cmd);
-void il_clear_traffic_stats(struct il_priv *il);
-void il_update_stats(struct il_priv *il, bool is_tx, __le16 fc, u16 len);
+extern void il_update_stats(struct il_priv *il, bool is_tx, __le16 fc, u16 len);
 #else
-static inline int
-il_alloc_traffic_mem(struct il_priv *il)
-{
-	return 0;
-}
-
-static inline void
-il_free_traffic_mem(struct il_priv *il)
-{
-}
-
-static inline void
-il_reset_traffic_log(struct il_priv *il)
-{
-}
-
-static inline void
-il_dbg_log_tx_data_frame(struct il_priv *il, u16 length,
-			 struct ieee80211_hdr *header)
-{
-}
-
-static inline void
-il_dbg_log_rx_data_frame(struct il_priv *il, u16 length,
-			 struct ieee80211_hdr *header)
-{
-}
-
 static inline void
 il_update_stats(struct il_priv *il, bool is_tx, __le16 fc, u16 len)
 {
 }
 #endif
+
 /*****************************************************
- * RX handlers.
- * **************************************************/
+ * Handlers
+ ***************************************************/
 void il_hdl_pm_sleep(struct il_priv *il, struct il_rx_buf *rxb);
 void il_hdl_pm_debug_stats(struct il_priv *il, struct il_rx_buf *rxb);
 void il_hdl_error(struct il_priv *il, struct il_rx_buf *rxb);
+void il_hdl_csa(struct il_priv *il, struct il_rx_buf *rxb);
 
 /*****************************************************
 * RX
@@ -1928,25 +1752,20 @@ int il_rx_queue_alloc(struct il_priv *il);
 void il_rx_queue_update_write_ptr(struct il_priv *il, struct il_rx_queue *q);
 int il_rx_queue_space(const struct il_rx_queue *q);
 void il_tx_cmd_complete(struct il_priv *il, struct il_rx_buf *rxb);
-/* Handlers */
+
 void il_hdl_spectrum_measurement(struct il_priv *il, struct il_rx_buf *rxb);
 void il_recover_from_stats(struct il_priv *il, struct il_rx_pkt *pkt);
 void il_chswitch_done(struct il_priv *il, bool is_success);
-void il_hdl_csa(struct il_priv *il, struct il_rx_buf *rxb);
-
-/* TX helpers */
 
 /*****************************************************
 * TX
 ******************************************************/
-void il_txq_update_write_ptr(struct il_priv *il, struct il_tx_queue *txq);
-int il_tx_queue_init(struct il_priv *il, struct il_tx_queue *txq, int slots_num,
-		     u32 txq_id);
-void il_tx_queue_reset(struct il_priv *il, struct il_tx_queue *txq,
-		       int slots_num, u32 txq_id);
-void il_tx_queue_unmap(struct il_priv *il, int txq_id);
-void il_tx_queue_free(struct il_priv *il, int txq_id);
-void il_setup_watchdog(struct il_priv *il);
+extern void il_txq_update_write_ptr(struct il_priv *il, struct il_tx_queue *txq);
+extern int il_tx_queue_init(struct il_priv *il, u32 txq_id);
+extern void il_tx_queue_reset(struct il_priv *il, u32 txq_id);
+extern void il_tx_queue_unmap(struct il_priv *il, int txq_id);
+extern void il_tx_queue_free(struct il_priv *il, int txq_id);
+extern void il_setup_watchdog(struct il_priv *il);
 /*****************************************************
  * TX power
  ****************************************************/
@@ -1956,7 +1775,7 @@ int il_set_tx_power(struct il_priv *il, s8 tx_power, bool force);
  * Rate
  ******************************************************************************/
 
-u8 il_get_lowest_plcp(struct il_priv *il, struct il_rxon_context *ctx);
+u8 il_get_lowest_plcp(struct il_priv *il);
 
 /*******************************************************************************
  * Scanning
@@ -2043,10 +1862,10 @@ extern const struct dev_pm_ops il_pm_ops;
 ******************************************************/
 void il4965_dump_nic_error_log(struct il_priv *il);
 #ifdef CONFIG_IWLEGACY_DEBUG
-void il_print_rx_config_cmd(struct il_priv *il, struct il_rxon_context *ctx);
+void il_print_rx_config_cmd(struct il_priv *il);
 #else
 static inline void
-il_print_rx_config_cmd(struct il_priv *il, struct il_rxon_context *ctx)
+il_print_rx_config_cmd(struct il_priv *il)
 {
 }
 #endif
@@ -2064,7 +1883,7 @@ void il_free_geos(struct il_priv *il);
 #define S_HCMD_ACTIVE	0	/* host command in progress */
 /* 1 is unused (used to be S_HCMD_SYNC_ACTIVE) */
 #define S_INT_ENABLED	2
-#define S_RF_KILL_HW	3
+#define S_RFKILL	3
 #define S_CT_KILL		4
 #define S_INIT		5
 #define S_ALIVE		6
@@ -2103,15 +1922,9 @@ il_is_init(struct il_priv *il)
 }
 
 static inline int
-il_is_rfkill_hw(struct il_priv *il)
-{
-	return test_bit(S_RF_KILL_HW, &il->status);
-}
-
-static inline int
 il_is_rfkill(struct il_priv *il)
 {
-	return il_is_rfkill_hw(il);
+	return test_bit(S_RFKILL, &il->status);
 }
 
 static inline int
@@ -2132,20 +1945,23 @@ il_is_ready_rf(struct il_priv *il)
 
 extern void il_send_bt_config(struct il_priv *il);
 extern int il_send_stats_request(struct il_priv *il, u8 flags, bool clear);
-void il_apm_stop(struct il_priv *il);
+extern void il_apm_stop(struct il_priv *il);
+extern void _il_apm_stop(struct il_priv *il);
+
 int il_apm_init(struct il_priv *il);
 
-int il_send_rxon_timing(struct il_priv *il, struct il_rxon_context *ctx);
+int il_send_rxon_timing(struct il_priv *il);
+
 static inline int
-il_send_rxon_assoc(struct il_priv *il, struct il_rxon_context *ctx)
+il_send_rxon_assoc(struct il_priv *il)
 {
-	return il->cfg->ops->hcmd->rxon_assoc(il, ctx);
+	return il->ops->rxon_assoc(il);
 }
 
 static inline int
-il_commit_rxon(struct il_priv *il, struct il_rxon_context *ctx)
+il_commit_rxon(struct il_priv *il)
 {
-	return il->cfg->ops->hcmd->commit_rxon(il, ctx);
+	return il->ops->commit_rxon(il);
 }
 
 static inline const struct ieee80211_supported_band *
@@ -2166,7 +1982,7 @@ irqreturn_t il_isr(int irq, void *data);
 
 extern void il_set_bit(struct il_priv *p, u32 r, u32 m);
 extern void il_clear_bit(struct il_priv *p, u32 r, u32 m);
-extern int _il_grab_nic_access(struct il_priv *il);
+extern bool _il_grab_nic_access(struct il_priv *il);
 extern int _il_poll_bit(struct il_priv *il, u32 addr, u32 bits, u32 mask, int timeout);
 extern int il_poll_bit(struct il_priv *il, u32 addr, u32 mask, int timeout);
 extern u32 il_rd_prph(struct il_priv *il, u32 reg);
@@ -2177,20 +1993,20 @@ extern void il_write_targ_mem(struct il_priv *il, u32 addr, u32 val);
 static inline void
 _il_write8(struct il_priv *il, u32 ofs, u8 val)
 {
-	iowrite8(val, il->hw_base + ofs);
+	writeb(val, il->hw_base + ofs);
 }
 #define il_write8(il, ofs, val) _il_write8(il, ofs, val)
 
 static inline void
 _il_wr(struct il_priv *il, u32 ofs, u32 val)
 {
-	iowrite32(val, il->hw_base + ofs);
+	writel(val, il->hw_base + ofs);
 }
 
 static inline u32
 _il_rd(struct il_priv *il, u32 ofs)
 {
-	return ioread32(il->hw_base + ofs);
+	return readl(il->hw_base + ofs);
 }
 
 static inline void
@@ -2209,6 +2025,13 @@ static inline void
 _il_release_nic_access(struct il_priv *il)
 {
 	_il_clear_bit(il, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
+	/*
+	 * In above we are reading CSR_GP_CNTRL register, what will flush any
+	 * previous writes, but still want write, which clear MAC_ACCESS_REQ
+	 * bit, be performed on PCI bus before any other writes scheduled on
+	 * different CPUs (after we drop reg_lock).
+	 */
+	mmiowb();
 }
 
 static inline u32
@@ -2231,7 +2054,7 @@ il_wr(struct il_priv *il, u32 reg, u32 value)
 	unsigned long reg_flags;
 
 	spin_lock_irqsave(&il->reg_lock, reg_flags);
-	if (!_il_grab_nic_access(il)) {
+	if (likely(_il_grab_nic_access(il))) {
 		_il_wr(il, reg, value);
 		_il_release_nic_access(il);
 	}
@@ -2242,7 +2065,6 @@ static inline u32
 _il_rd_prph(struct il_priv *il, u32 reg)
 {
 	_il_wr(il, HBUS_TARG_PRPH_RADDR, reg | (3 << 24));
-	rmb();
 	return _il_rd(il, HBUS_TARG_PRPH_RDAT);
 }
 
@@ -2250,7 +2072,6 @@ static inline void
 _il_wr_prph(struct il_priv *il, u32 addr, u32 val)
 {
 	_il_wr(il, HBUS_TARG_PRPH_WADDR, ((addr & 0x0000FFFF) | (3 << 24)));
-	wmb();
 	_il_wr(il, HBUS_TARG_PRPH_WDAT, val);
 }
 
@@ -2260,9 +2081,10 @@ il_set_bits_prph(struct il_priv *il, u32 reg, u32 mask)
 	unsigned long reg_flags;
 
 	spin_lock_irqsave(&il->reg_lock, reg_flags);
-	_il_grab_nic_access(il);
-	_il_wr_prph(il, reg, (_il_rd_prph(il, reg) | mask));
-	_il_release_nic_access(il);
+	if (likely(_il_grab_nic_access(il))) {
+		_il_wr_prph(il, reg, (_il_rd_prph(il, reg) | mask));
+		_il_release_nic_access(il);
+	}
 	spin_unlock_irqrestore(&il->reg_lock, reg_flags);
 }
 
@@ -2272,9 +2094,10 @@ il_set_bits_mask_prph(struct il_priv *il, u32 reg, u32 bits, u32 mask)
 	unsigned long reg_flags;
 
 	spin_lock_irqsave(&il->reg_lock, reg_flags);
-	_il_grab_nic_access(il);
-	_il_wr_prph(il, reg, ((_il_rd_prph(il, reg) & mask) | bits));
-	_il_release_nic_access(il);
+	if (likely(_il_grab_nic_access(il))) {
+		_il_wr_prph(il, reg, ((_il_rd_prph(il, reg) & mask) | bits));
+		_il_release_nic_access(il);
+	}
 	spin_unlock_irqrestore(&il->reg_lock, reg_flags);
 }
 
@@ -2285,10 +2108,11 @@ il_clear_bits_prph(struct il_priv *il, u32 reg, u32 mask)
 	u32 val;
 
 	spin_lock_irqsave(&il->reg_lock, reg_flags);
-	_il_grab_nic_access(il);
-	val = _il_rd_prph(il, reg);
-	_il_wr_prph(il, reg, (val & ~mask));
-	_il_release_nic_access(il);
+	if (likely(_il_grab_nic_access(il))) {
+		val = _il_rd_prph(il, reg);
+		_il_wr_prph(il, reg, (val & ~mask));
+		_il_release_nic_access(il);
+	}
 	spin_unlock_irqrestore(&il->reg_lock, reg_flags);
 }
 
@@ -2303,23 +2127,22 @@ il_clear_bits_prph(struct il_priv *il, u32 reg, u32 mask)
 				   (this is for the IBSS BSSID stations) */
 #define IL_STA_BCAST BIT(4)	/* this station is the special bcast station */
 
-void il_restore_stations(struct il_priv *il, struct il_rxon_context *ctx);
-void il_clear_ucode_stations(struct il_priv *il, struct il_rxon_context *ctx);
+void il_restore_stations(struct il_priv *il);
+void il_clear_ucode_stations(struct il_priv *il);
 void il_dealloc_bcast_stations(struct il_priv *il);
 int il_get_free_ucode_key_idx(struct il_priv *il);
 int il_send_add_sta(struct il_priv *il, struct il_addsta_cmd *sta, u8 flags);
-int il_add_station_common(struct il_priv *il, struct il_rxon_context *ctx,
-			  const u8 *addr, bool is_ap,
+int il_add_station_common(struct il_priv *il, const u8 *addr, bool is_ap,
 			  struct ieee80211_sta *sta, u8 *sta_id_r);
 int il_remove_station(struct il_priv *il, const u8 sta_id, const u8 * addr);
 int il_mac_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 		      struct ieee80211_sta *sta);
 
-u8 il_prep_station(struct il_priv *il, struct il_rxon_context *ctx,
-		   const u8 *addr, bool is_ap, struct ieee80211_sta *sta);
+u8 il_prep_station(struct il_priv *il, const u8 *addr, bool is_ap,
+		   struct ieee80211_sta *sta);
 
-int il_send_lq_cmd(struct il_priv *il, struct il_rxon_context *ctx,
-		   struct il_link_quality_cmd *lq, u8 flags, bool init);
+int il_send_lq_cmd(struct il_priv *il, struct il_link_quality_cmd *lq,
+		   u8 flags, bool init);
 
 /**
  * il_clear_driver_stations - clear knowledge of all stations from driver
@@ -2334,24 +2157,11 @@ static inline void
 il_clear_driver_stations(struct il_priv *il)
 {
 	unsigned long flags;
-	struct il_rxon_context *ctx = &il->ctx;
 
 	spin_lock_irqsave(&il->sta_lock, flags);
 	memset(il->stations, 0, sizeof(il->stations));
 	il->num_stations = 0;
-
 	il->ucode_key_table = 0;
-
-	/*
-	 * Remove all key information that is not stored as part
-	 * of station information since mac80211 may not have had
-	 * a chance to remove all the keys. When device is
-	 * reconfigured by mac80211 after an error all keys will
-	 * be reconfigured.
-	 */
-	memset(ctx->wep_keys, 0, sizeof(ctx->wep_keys));
-	ctx->key_mapping_keys = 0;
-
 	spin_unlock_irqrestore(&il->sta_lock, flags);
 }
 
@@ -2376,13 +2186,12 @@ il_sta_id(struct ieee80211_sta *sta)
  * inline wraps that pattern.
  */
 static inline int
-il_sta_id_or_broadcast(struct il_priv *il, struct il_rxon_context *context,
-		       struct ieee80211_sta *sta)
+il_sta_id_or_broadcast(struct il_priv *il, struct ieee80211_sta *sta)
 {
 	int sta_id;
 
 	if (!sta)
-		return context->bcast_sta_id;
+		return il->hw_params.bcast_id;
 
 	sta_id = il_sta_id(sta);
 
@@ -2565,10 +2374,10 @@ struct il_rb_status {
 	__le32 __unused;	/* 3945 only */
 } __packed;
 
-#define TFD_QUEUE_SIZE_MAX      (256)
-#define TFD_QUEUE_SIZE_BC_DUP	(64)
+#define TFD_QUEUE_SIZE_MAX      256
+#define TFD_QUEUE_SIZE_BC_DUP	64
 #define TFD_QUEUE_BC_SIZE	(TFD_QUEUE_SIZE_MAX + TFD_QUEUE_SIZE_BC_DUP)
-#define IL_TX_DMA_MASK        DMA_BIT_MASK(36)
+#define IL_TX_DMA_MASK		DMA_BIT_MASK(36)
 #define IL_NUM_OF_TBS		20
 
 static inline u8