* tasklet function.
*
* NOTE: If the driver opts to use the _irqsafe() functions, it may not also
- * use the non-irqsafe functions!
+ * use the non-IRQ-safe functions!
*/
/**
* struct ieee80211_ht_bss_info - describing BSS's HT characteristics
*
* This structure describes most essential parameters needed
- * to describe 802.11n HT characteristics in a BSS
+ * to describe 802.11n HT characteristics in a BSS.
*
* @primary_channel: channel number of primery channel
* @bss_cap: 802.11n's general BSS capabilities (e.g. channel width)
* The information provided in this structure is required for QoS
* transmit queue configuration. Cf. IEEE 802.11 7.3.2.29.
*
- * @aifs: arbitration interface space [0..255, -1: use default]
- * @cw_min: minimum contention window [will be a value of the form
- * 2^n-1 in the range 1..1023; 0: use default]
+ * @aifs: arbitration interface space [0..255]
+ * @cw_min: minimum contention window [a value of the form
+ * 2^n-1 in the range 1..32767]
* @cw_max: maximum contention window [like @cw_min]
* @txop: maximum burst time in units of 32 usecs, 0 meaning disabled
*/
struct ieee80211_tx_queue_params {
- s16 aifs;
+ u16 txop;
u16 cw_min;
u16 cw_max;
- u16 txop;
+ u8 aifs;
};
/**
};
/**
- * enum mac80211_tx_control_flags - flags to describe Tx configuration for
- * the Tx frame
- *
- * These flags are used with the @flags member of &ieee80211_tx_control
- *
- * @IEEE80211_TXCTL_REQ_TX_STATUS: request TX status callback for this frame.
- * @IEEE80211_TXCTL_DO_NOT_ENCRYPT: send this frame without encryption;
- * e.g., for EAPOL frame
- * @IEEE80211_TXCTL_USE_RTS_CTS: use RTS-CTS before sending frame
- * @IEEE80211_TXCTL_USE_CTS_PROTECT: use CTS protection for the frame (e.g.,
- * for combined 802.11g / 802.11b networks)
- * @IEEE80211_TXCTL_NO_ACK: tell the low level not to wait for an ack
- * @IEEE80211_TXCTL_RATE_CTRL_PROBE
- * @EEE80211_TXCTL_CLEAR_PS_FILT: clear powersave filter
- * for destination station
- * @IEEE80211_TXCTL_REQUEUE:
- * @IEEE80211_TXCTL_FIRST_FRAGMENT: this is a first fragment of the frame
- * @IEEE80211_TXCTL_LONG_RETRY_LIMIT: this frame should be send using the
- * through set_retry_limit configured long
- * retry value
- * @IEEE80211_TXCTL_EAPOL_FRAME: internal to mac80211
- * @IEEE80211_TXCTL_SEND_AFTER_DTIM: send this frame after DTIM beacon
- * @IEEE80211_TXCTL_AMPDU: this frame should be sent as part of an A-MPDU
- * @IEEE80211_TXCTL_OFDM_HT: this frame can be sent in HT OFDM rates. number
- * of streams when this flag is on can be extracted
- * from antenna_sel_tx, so if 1 antenna is marked
- * use SISO, 2 antennas marked use MIMO, n antennas
- * marked use MIMO_n.
- * @IEEE80211_TXCTL_GREEN_FIELD: use green field protection for this frame
- * @IEEE80211_TXCTL_40_MHZ_WIDTH: send this frame using 40 Mhz channel width
- * @IEEE80211_TXCTL_DUP_DATA: duplicate data frame on both 20 Mhz channels
- * @IEEE80211_TXCTL_SHORT_GI: send this frame using short guard interval
+ * enum mac80211_tx_control_flags - flags to describe transmission information/status
+ *
+ * These flags are used with the @flags member of &ieee80211_tx_info.
+ *
+ * @IEEE80211_TX_CTL_REQ_TX_STATUS: request TX status callback for this frame.
+ * @IEEE80211_TX_CTL_DO_NOT_ENCRYPT: send this frame without encryption;
+ * e.g., for EAPOL frame
+ * @IEEE80211_TX_CTL_USE_RTS_CTS: use RTS-CTS before sending frame
+ * @IEEE80211_TX_CTL_USE_CTS_PROTECT: use CTS protection for the frame (e.g.,
+ * for combined 802.11g / 802.11b networks)
+ * @IEEE80211_TX_CTL_NO_ACK: tell the low level not to wait for an ack
+ * @IEEE80211_TX_CTL_RATE_CTRL_PROBE: TBD
+ * @IEEE80211_TX_CTL_CLEAR_PS_FILT: clear powersave filter for destination
+ * station
+ * @IEEE80211_TX_CTL_REQUEUE: TBD
+ * @IEEE80211_TX_CTL_FIRST_FRAGMENT: this is a first fragment of the frame
+ * @IEEE80211_TX_CTL_SHORT_PREAMBLE: TBD
+ * @IEEE80211_TX_CTL_LONG_RETRY_LIMIT: this frame should be send using the
+ * through set_retry_limit configured long retry value
+ * @IEEE80211_TX_CTL_EAPOL_FRAME: internal to mac80211
+ * @IEEE80211_TX_CTL_SEND_AFTER_DTIM: send this frame after DTIM beacon
+ * @IEEE80211_TX_CTL_AMPDU: this frame should be sent as part of an A-MPDU
+ * @IEEE80211_TX_CTL_OFDM_HT: this frame can be sent in HT OFDM rates. number
+ * of streams when this flag is on can be extracted from antenna_sel_tx,
+ * so if 1 antenna is marked use SISO, 2 antennas marked use MIMO, n
+ * antennas marked use MIMO_n.
+ * @IEEE80211_TX_CTL_GREEN_FIELD: use green field protection for this frame
+ * @IEEE80211_TX_CTL_40_MHZ_WIDTH: send this frame using 40 Mhz channel width
+ * @IEEE80211_TX_CTL_DUP_DATA: duplicate data frame on both 20 Mhz channels
+ * @IEEE80211_TX_CTL_SHORT_GI: send this frame using short guard interval
+ * @IEEE80211_TX_CTL_INJECTED: TBD
+ * @IEEE80211_TX_STAT_TX_FILTERED: The frame was not transmitted
+ * because the destination STA was in powersave mode.
+ * @IEEE80211_TX_STAT_ACK: Frame was acknowledged
+ * @IEEE80211_TX_STAT_AMPDU: The frame was aggregated, so status
+ * is for the whole aggregation.
+ * @IEEE80211_TX_STAT_AMPDU_NO_BACK: no block ack was returned,
+ * so consider using block ack request (BAR).
+ * @IEEE80211_TX_CTL_ASSIGN_SEQ: The driver has to assign a sequence
+ * number to this frame, taking care of not overwriting the fragment
+ * number and increasing the sequence number only when the
+ * IEEE80211_TX_CTL_FIRST_FRAGMENT flags is set. mac80211 will properly
+ * assign sequence numbers to QoS-data frames but cannot do so correctly
+ * for non-QoS-data and management frames because beacons need them from
+ * that counter as well and mac80211 cannot guarantee proper sequencing.
+ * If this flag is set, the driver should instruct the hardware to
+ * assign a sequence number to the frame or assign one itself. Cf. IEEE
+ * 802.11-2007 7.1.3.4.1 paragraph 3. This flag will always be set for
+ * beacons always be clear for frames without a sequence number field.
*/
enum mac80211_tx_control_flags {
- IEEE80211_TXCTL_REQ_TX_STATUS = (1<<0),
- IEEE80211_TXCTL_DO_NOT_ENCRYPT = (1<<1),
- IEEE80211_TXCTL_USE_RTS_CTS = (1<<2),
- IEEE80211_TXCTL_USE_CTS_PROTECT = (1<<3),
- IEEE80211_TXCTL_NO_ACK = (1<<4),
- IEEE80211_TXCTL_RATE_CTRL_PROBE = (1<<5),
- IEEE80211_TXCTL_CLEAR_PS_FILT = (1<<6),
- IEEE80211_TXCTL_REQUEUE = (1<<7),
- IEEE80211_TXCTL_FIRST_FRAGMENT = (1<<8),
- IEEE80211_TXCTL_SHORT_PREAMBLE = (1<<9),
- IEEE80211_TXCTL_LONG_RETRY_LIMIT = (1<<10),
- IEEE80211_TXCTL_EAPOL_FRAME = (1<<11),
- IEEE80211_TXCTL_SEND_AFTER_DTIM = (1<<12),
- IEEE80211_TXCTL_AMPDU = (1<<13),
- IEEE80211_TXCTL_OFDM_HT = (1<<14),
- IEEE80211_TXCTL_GREEN_FIELD = (1<<15),
- IEEE80211_TXCTL_40_MHZ_WIDTH = (1<<16),
- IEEE80211_TXCTL_DUP_DATA = (1<<17),
- IEEE80211_TXCTL_SHORT_GI = (1<<18),
+ IEEE80211_TX_CTL_REQ_TX_STATUS = BIT(0),
+ IEEE80211_TX_CTL_DO_NOT_ENCRYPT = BIT(1),
+ IEEE80211_TX_CTL_USE_RTS_CTS = BIT(2),
+ IEEE80211_TX_CTL_USE_CTS_PROTECT = BIT(3),
+ IEEE80211_TX_CTL_NO_ACK = BIT(4),
+ IEEE80211_TX_CTL_RATE_CTRL_PROBE = BIT(5),
+ IEEE80211_TX_CTL_CLEAR_PS_FILT = BIT(6),
+ IEEE80211_TX_CTL_REQUEUE = BIT(7),
+ IEEE80211_TX_CTL_FIRST_FRAGMENT = BIT(8),
+ IEEE80211_TX_CTL_SHORT_PREAMBLE = BIT(9),
+ IEEE80211_TX_CTL_LONG_RETRY_LIMIT = BIT(10),
+ IEEE80211_TX_CTL_EAPOL_FRAME = BIT(11),
+ IEEE80211_TX_CTL_SEND_AFTER_DTIM = BIT(12),
+ IEEE80211_TX_CTL_AMPDU = BIT(13),
+ IEEE80211_TX_CTL_OFDM_HT = BIT(14),
+ IEEE80211_TX_CTL_GREEN_FIELD = BIT(15),
+ IEEE80211_TX_CTL_40_MHZ_WIDTH = BIT(16),
+ IEEE80211_TX_CTL_DUP_DATA = BIT(17),
+ IEEE80211_TX_CTL_SHORT_GI = BIT(18),
+ IEEE80211_TX_CTL_INJECTED = BIT(19),
+ IEEE80211_TX_STAT_TX_FILTERED = BIT(20),
+ IEEE80211_TX_STAT_ACK = BIT(21),
+ IEEE80211_TX_STAT_AMPDU = BIT(22),
+ IEEE80211_TX_STAT_AMPDU_NO_BACK = BIT(23),
+ IEEE80211_TX_CTL_ASSIGN_SEQ = BIT(24),
};
-/* Transmit control fields. This data structure is passed to low-level driver
- * with each TX frame. The low-level driver is responsible for configuring
- * the hardware to use given values (depending on what is supported).
- *
- * NOTE: Be careful with using the pointers outside of the ieee80211_ops->tx()
- * context (i.e. when defering the work to a workqueue).
- * The vif pointer is valid until the it has been removed with the
- * ieee80211_ops->remove_interface() callback funtion.
- * The hw_key pointer is valid until it has been removed with the
- * ieee80211_ops->set_key() callback function.
- */
-struct ieee80211_tx_control {
- u32 flags; /* tx control flags defined above */
- s8 tx_rate_idx, /* Transmit rate (indexes registered rates) */
- rts_cts_rate_idx, /* Transmit rate for RTS/CTS frame */
- alt_retry_rate_idx; /* retry rate for the last retries */
+#define IEEE80211_TX_INFO_DRIVER_DATA_SIZE \
+ (sizeof(((struct sk_buff *)0)->cb) - 8)
+#define IEEE80211_TX_INFO_DRIVER_DATA_PTRS \
+ (IEEE80211_TX_INFO_DRIVER_DATA_SIZE / sizeof(void *))
- s8 retry_limit; /* 1 = only first attempt, 2 = one retry, ..
- * This could be used when set_retry_limit
- * is not implemented by the driver */
-
- struct ieee80211_vif *vif;
-
- /* Key used for hardware encryption
- * NULL if IEEE80211_TXCTL_DO_NOT_ENCRYPT is set */
- struct ieee80211_key_conf *hw_key;
-
- enum ieee80211_band band;
+/**
+ * struct ieee80211_tx_info - skb transmit information
+ *
+ * This structure is placed in skb->cb for three uses:
+ * (1) mac80211 TX control - mac80211 tells the driver what to do
+ * (2) driver internal use (if applicable)
+ * (3) TX status information - driver tells mac80211 what happened
+ *
+ * @flags: transmit info flags, defined above
+ * @band: TBD
+ * @tx_rate_idx: TBD
+ * @antenna_sel_tx: TBD
+ * @control: union for control data
+ * @status: union for status data
+ * @driver_data: array of driver_data pointers
+ * @retry_count: number of retries
+ * @excessive_retries: set to 1 if the frame was retried many times
+ * but not acknowledged
+ * @ampdu_ack_len: number of aggregated frames.
+ * relevant only if IEEE80211_TX_STATUS_AMPDU was set.
+ * @ampdu_ack_map: block ack bit map for the aggregation.
+ * relevant only if IEEE80211_TX_STATUS_AMPDU was set.
+ * @ack_signal: signal strength of the ACK frame
+ */
+struct ieee80211_tx_info {
+ /* common information */
+ u32 flags;
+ u8 band;
+ s8 tx_rate_idx;
+ u8 antenna_sel_tx;
- u8 antenna_sel_tx; /* 0 = default/diversity, otherwise bit
- * position represents antenna number used */
- u8 icv_len; /* length of the ICV/MIC field in octets */
- u8 iv_len; /* length of the IV field in octets */
- u16 queue; /* hardware queue to use for this frame;
- * 0 = highest, hw->queues-1 = lowest */
- u16 aid; /* Station AID */
- int type; /* internal */
+ /* 1 byte hole */
+
+ union {
+ struct {
+ struct ieee80211_vif *vif;
+ struct ieee80211_key_conf *hw_key;
+ unsigned long jiffies;
+ int ifindex;
+ u16 aid;
+ s8 rts_cts_rate_idx, alt_retry_rate_idx;
+ u8 retry_limit;
+ u8 icv_len;
+ u8 iv_len;
+ } control;
+ struct {
+ u64 ampdu_ack_map;
+ int ack_signal;
+ u8 retry_count;
+ bool excessive_retries;
+ u8 ampdu_ack_len;
+ } status;
+ void *driver_data[IEEE80211_TX_INFO_DRIVER_DATA_PTRS];
+ };
};
+static inline struct ieee80211_tx_info *IEEE80211_SKB_CB(struct sk_buff *skb)
+{
+ return (struct ieee80211_tx_info *)skb->cb;
+}
/**
int flag;
};
-/**
- * enum ieee80211_tx_status_flags - transmit status flags
- *
- * Status flags to indicate various transmit conditions.
- *
- * @IEEE80211_TX_STATUS_TX_FILTERED: The frame was not transmitted
- * because the destination STA was in powersave mode.
- * @IEEE80211_TX_STATUS_ACK: Frame was acknowledged
- * @IEEE80211_TX_STATUS_AMPDU: The frame was aggregated, so status
- * is for the whole aggregation.
- */
-enum ieee80211_tx_status_flags {
- IEEE80211_TX_STATUS_TX_FILTERED = 1<<0,
- IEEE80211_TX_STATUS_ACK = 1<<1,
- IEEE80211_TX_STATUS_AMPDU = 1<<2,
-};
-
-/**
- * struct ieee80211_tx_status - transmit status
- *
- * As much information as possible should be provided for each transmitted
- * frame with ieee80211_tx_status().
- *
- * @control: a copy of the &struct ieee80211_tx_control passed to the driver
- * in the tx() callback.
- * @flags: transmit status flags, defined above
- * @retry_count: number of retries
- * @excessive_retries: set to 1 if the frame was retried many times
- * but not acknowledged
- * @ampdu_ack_len: number of aggregated frames.
- * relevant only if IEEE80211_TX_STATUS_AMPDU was set.
- * @ampdu_ack_map: block ack bit map for the aggregation.
- * relevant only if IEEE80211_TX_STATUS_AMPDU was set.
- * @ack_signal: signal strength of the ACK frame either in dBm, dB or unspec
- * depending on hardware capabilites flags @IEEE80211_HW_SIGNAL_*
- */
-struct ieee80211_tx_status {
- struct ieee80211_tx_control control;
- u8 flags;
- u8 retry_count;
- bool excessive_retries;
- u8 ampdu_ack_len;
- u64 ampdu_ack_map;
- int ack_signal;
-};
-
/**
* enum ieee80211_conf_flags - configuration flags
*
* @IEEE80211_CONF_SHORT_SLOT_TIME: use 802.11g short slot time
* @IEEE80211_CONF_RADIOTAP: add radiotap header at receive time (if supported)
* @IEEE80211_CONF_SUPPORT_HT_MODE: use 802.11n HT capabilities (if supported)
+ * @IEEE80211_CONF_PS: Enable 802.11 power save mode
*/
enum ieee80211_conf_flags {
IEEE80211_CONF_SHORT_SLOT_TIME = (1<<0),
IEEE80211_CONF_RADIOTAP = (1<<1),
IEEE80211_CONF_SUPPORT_HT_MODE = (1<<2),
+ IEEE80211_CONF_PS = (1<<3),
};
/**
void *mac_addr;
};
+/**
+ * enum ieee80211_if_conf_change - interface config change flags
+ *
+ * @IEEE80211_IFCC_BSSID: The BSSID changed.
+ * @IEEE80211_IFCC_SSID: The SSID changed.
+ * @IEEE80211_IFCC_BEACON: The beacon for this interface changed
+ * (currently AP and MESH only), use ieee80211_beacon_get().
+ */
+enum ieee80211_if_conf_change {
+ IEEE80211_IFCC_BSSID = BIT(0),
+ IEEE80211_IFCC_SSID = BIT(1),
+ IEEE80211_IFCC_BEACON = BIT(2),
+};
+
/**
* struct ieee80211_if_conf - configuration of an interface
*
- * @type: type of the interface. This is always the same as was specified in
- * &struct ieee80211_if_init_conf. The type of an interface never changes
- * during the life of the interface; this field is present only for
- * convenience.
+ * @changed: parameters that have changed, see &enum ieee80211_if_conf_change.
* @bssid: BSSID of the network we are associated to/creating.
* @ssid: used (together with @ssid_len) by drivers for hardware that
* generate beacons independently. The pointer is valid only during the
* config_interface() call, so copy the value somewhere if you need
* it.
* @ssid_len: length of the @ssid field.
- * @beacon: beacon template. Valid only if @host_gen_beacon_template in
- * &struct ieee80211_hw is set. The driver is responsible of freeing
- * the sk_buff.
- * @beacon_control: tx_control for the beacon template, this field is only
- * valid when the @beacon field was set.
*
* This structure is passed to the config_interface() callback of
* &struct ieee80211_hw.
*/
struct ieee80211_if_conf {
- int type;
+ u32 changed;
u8 *bssid;
u8 *ssid;
size_t ssid_len;
- struct sk_buff *beacon;
- struct ieee80211_tx_control *beacon_control;
};
/**
ALG_CCMP,
};
+/**
+ * enum ieee80211_key_len - key length
+ * @LEN_WEP40: WEP 5-byte long key
+ * @LEN_WEP104: WEP 13-byte long key
+ */
+enum ieee80211_key_len {
+ LEN_WEP40 = 5,
+ LEN_WEP104 = 13,
+};
/**
* enum ieee80211_key_flags - key flags
* @flags: key flags, see &enum ieee80211_key_flags.
* @keyidx: the key index (0-3)
* @keylen: key material length
- * @key: key material
+ * @key: key material. For ALG_TKIP the key is encoded as a 256-bit (32 byte)
+ * data block:
+ * - Temporal Encryption Key (128 bits)
+ * - Temporal Authenticator Tx MIC Key (64 bits)
+ * - Temporal Authenticator Rx MIC Key (64 bits)
+ *
*/
struct ieee80211_key_conf {
enum ieee80211_key_alg alg;
* enum sta_notify_cmd - sta notify command
*
* Used with the sta_notify() callback in &struct ieee80211_ops, this
- * indicates addition and removal of a station to station table
+ * indicates addition and removal of a station to station table.
*
* @STA_NOTIFY_ADD: a station was added to the station table
* @STA_NOTIFY_REMOVE: a station being removed from the station table
* any particular flags. There are some exceptions to this rule,
* however, so you are advised to review these flags carefully.
*
- * @IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE:
- * The device only needs to be supplied with a beacon template.
- * If you need the host to generate each beacon then don't use
- * this flag and call ieee80211_beacon_get() when you need the
- * next beacon frame. Note that if you set this flag, you must
- * implement the set_tim() callback for powersave mode to work
- * properly.
- * This flag is only relevant for access-point mode.
- *
* @IEEE80211_HW_RX_INCLUDES_FCS:
* Indicates that received frames passed to the stack include
* the FCS at the end.
* @IEEE80211_HW_NOISE_DBM:
* Hardware can provide noise (radio interference) values in units dBm,
* decibel difference from one milliwatt.
+ *
+ * @IEEE80211_HW_SPECTRUM_MGMT:
+ * Hardware supports spectrum management defined in 802.11h
+ * Measurement, Channel Switch, Quieting, TPC
*/
enum ieee80211_hw_flags {
IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE = 1<<0,
IEEE80211_HW_SIGNAL_DB = 1<<6,
IEEE80211_HW_SIGNAL_DBM = 1<<7,
IEEE80211_HW_NOISE_DBM = 1<<8,
+ IEEE80211_HW_SPECTRUM_MGMT = 1<<9,
};
/**
* @conf: &struct ieee80211_conf, device configuration, don't use.
*
* @workqueue: single threaded workqueue available for driver use,
- * allocated by mac80211 on registration and flushed on
- * unregistration.
+ * allocated by mac80211 on registration and flushed when an
+ * interface is removed.
+ * NOTICE: All work performed on this workqueue should NEVER
+ * acquire the RTNL lock (i.e. Don't use the function
+ * ieee80211_iterate_active_interfaces())
*
* @priv: pointer to private area that was allocated for driver use
* along with this structure.
memcpy(hw->wiphy->perm_addr, addr, ETH_ALEN);
}
+static inline int ieee80211_num_regular_queues(struct ieee80211_hw *hw)
+{
+ return hw->queues;
+}
+
+static inline int ieee80211_num_queues(struct ieee80211_hw *hw)
+{
+ return hw->queues + hw->ampdu_queues;
+}
+
static inline struct ieee80211_rate *
ieee80211_get_tx_rate(const struct ieee80211_hw *hw,
- const struct ieee80211_tx_control *c)
+ const struct ieee80211_tx_info *c)
{
if (WARN_ON(c->tx_rate_idx < 0))
return NULL;
static inline struct ieee80211_rate *
ieee80211_get_rts_cts_rate(const struct ieee80211_hw *hw,
- const struct ieee80211_tx_control *c)
+ const struct ieee80211_tx_info *c)
{
- if (c->rts_cts_rate_idx < 0)
+ if (c->control.rts_cts_rate_idx < 0)
return NULL;
- return &hw->wiphy->bands[c->band]->bitrates[c->rts_cts_rate_idx];
+ return &hw->wiphy->bands[c->band]->bitrates[c->control.rts_cts_rate_idx];
}
static inline struct ieee80211_rate *
ieee80211_get_alt_retry_rate(const struct ieee80211_hw *hw,
- const struct ieee80211_tx_control *c)
+ const struct ieee80211_tx_info *c)
{
- if (c->alt_retry_rate_idx < 0)
+ if (c->control.alt_retry_rate_idx < 0)
return NULL;
- return &hw->wiphy->bands[c->band]->bitrates[c->alt_retry_rate_idx];
+ return &hw->wiphy->bands[c->band]->bitrates[c->control.alt_retry_rate_idx];
}
/**
* @tx: Handler that 802.11 module calls for each transmitted frame.
* skb contains the buffer starting from the IEEE 802.11 header.
* The low-level driver should send the frame out based on
- * configuration in the TX control data. Must be implemented and
- * atomic.
+ * configuration in the TX control data. This handler should,
+ * preferably, never fail and stop queues appropriately, more
+ * importantly, however, it must never fail for A-MPDU-queues.
+ * Must be implemented and atomic.
*
* @start: Called before the first netdevice attached to the hardware
* is enabled. This should turn on the hardware and must turn on
* function is optional if the firmware/hardware takes full care of
* TSF synchronization.
*
- * @beacon_update: Setup beacon data for IBSS beacons. Unlike access point,
- * IBSS uses a fixed beacon frame which is configured using this
- * function.
- * If the driver returns success (0) from this callback, it owns
- * the skb. That means the driver is responsible to kfree_skb() it.
- * The control structure is not dynamically allocated. That means the
- * driver does not own the pointer and if it needs it somewhere
- * outside of the context of this function, it must copy it
- * somewhere else.
- * This handler is required only for IBSS mode.
- *
* @tx_last_beacon: Determine whether the last IBSS beacon was sent by us.
* This is needed only for IBSS mode and the result of this function is
* used to determine whether to reply to Probe Requests.
* that TX/RX_STOP can pass NULL for this parameter.
*/
struct ieee80211_ops {
- int (*tx)(struct ieee80211_hw *hw, struct sk_buff *skb,
- struct ieee80211_tx_control *control);
+ int (*tx)(struct ieee80211_hw *hw, struct sk_buff *skb);
int (*start)(struct ieee80211_hw *hw);
void (*stop)(struct ieee80211_hw *hw);
int (*add_interface)(struct ieee80211_hw *hw,
struct ieee80211_tx_queue_stats *stats);
u64 (*get_tsf)(struct ieee80211_hw *hw);
void (*reset_tsf)(struct ieee80211_hw *hw);
- int (*beacon_update)(struct ieee80211_hw *hw,
- struct sk_buff *skb,
- struct ieee80211_tx_control *control);
int (*tx_last_beacon)(struct ieee80211_hw *hw);
int (*ampdu_action)(struct ieee80211_hw *hw,
enum ieee80211_ampdu_mlme_action action,
*
* This function frees everything that was allocated, including the
* private data for the driver. You must call ieee80211_unregister_hw()
- * before calling this function
+ * before calling this function.
*
* @hw: the hardware to free
*/
*
* @hw: the hardware the frame was transmitted by
* @skb: the frame that was transmitted, owned by mac80211 after this call
- * @status: status information for this frame; the status pointer need not
- * be valid after this function returns and is not freed by mac80211,
- * it is recommended that it points to a stack area
*/
void ieee80211_tx_status(struct ieee80211_hw *hw,
- struct sk_buff *skb,
- struct ieee80211_tx_status *status);
+ struct sk_buff *skb);
/**
- * ieee80211_tx_status_irqsafe - irq-safe transmit status callback
+ * ieee80211_tx_status_irqsafe - IRQ-safe transmit status callback
*
* Like ieee80211_tx_status() but can be called in IRQ context
* (internally defers to a tasklet.)
*
* @hw: the hardware the frame was transmitted by
* @skb: the frame that was transmitted, owned by mac80211 after this call
- * @status: status information for this frame; the status pointer need not
- * be valid after this function returns and is not freed by mac80211,
- * it is recommended that it points to a stack area
*/
void ieee80211_tx_status_irqsafe(struct ieee80211_hw *hw,
- struct sk_buff *skb,
- struct ieee80211_tx_status *status);
+ struct sk_buff *skb);
/**
* ieee80211_beacon_get - beacon generation function
* is responsible of freeing it.
*/
struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- struct ieee80211_tx_control *control);
+ struct ieee80211_vif *vif);
/**
* ieee80211_rts_get - RTS frame generation function
* @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf.
* @frame: pointer to the frame that is going to be protected by the RTS.
* @frame_len: the frame length (in octets).
- * @frame_txctl: &struct ieee80211_tx_control of the frame.
+ * @frame_txctl: &struct ieee80211_tx_info of the frame.
* @rts: The buffer where to store the RTS frame.
*
* If the RTS frames are generated by the host system (i.e., not in
*/
void ieee80211_rts_get(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
const void *frame, size_t frame_len,
- const struct ieee80211_tx_control *frame_txctl,
+ const struct ieee80211_tx_info *frame_txctl,
struct ieee80211_rts *rts);
/**
* @hw: pointer obtained from ieee80211_alloc_hw().
* @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf.
* @frame_len: the length of the frame that is going to be protected by the RTS.
- * @frame_txctl: &struct ieee80211_tx_control of the frame.
+ * @frame_txctl: &struct ieee80211_tx_info of the frame.
*
* If the RTS is generated in firmware, but the host system must provide
* the duration field, the low-level driver uses this function to receive
*/
__le16 ieee80211_rts_duration(struct ieee80211_hw *hw,
struct ieee80211_vif *vif, size_t frame_len,
- const struct ieee80211_tx_control *frame_txctl);
+ const struct ieee80211_tx_info *frame_txctl);
/**
* ieee80211_ctstoself_get - CTS-to-self frame generation function
* @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf.
* @frame: pointer to the frame that is going to be protected by the CTS-to-self.
* @frame_len: the frame length (in octets).
- * @frame_txctl: &struct ieee80211_tx_control of the frame.
+ * @frame_txctl: &struct ieee80211_tx_info of the frame.
* @cts: The buffer where to store the CTS-to-self frame.
*
* If the CTS-to-self frames are generated by the host system (i.e., not in
void ieee80211_ctstoself_get(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
const void *frame, size_t frame_len,
- const struct ieee80211_tx_control *frame_txctl,
+ const struct ieee80211_tx_info *frame_txctl,
struct ieee80211_cts *cts);
/**
* @hw: pointer obtained from ieee80211_alloc_hw().
* @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf.
* @frame_len: the length of the frame that is going to be protected by the CTS-to-self.
- * @frame_txctl: &struct ieee80211_tx_control of the frame.
+ * @frame_txctl: &struct ieee80211_tx_info of the frame.
*
* If the CTS-to-self is generated in firmware, but the host system must provide
* the duration field, the low-level driver uses this function to receive
__le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
size_t frame_len,
- const struct ieee80211_tx_control *frame_txctl);
+ const struct ieee80211_tx_info *frame_txctl);
/**
* ieee80211_generic_frame_duration - Calculate the duration field for a frame
* use common code for all beacons.
*/
struct sk_buff *
-ieee80211_get_buffered_bc(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
- struct ieee80211_tx_control *control);
+ieee80211_get_buffered_bc(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
/**
* ieee80211_get_hdrlen_from_skb - get header length from data
*
* @skb: the frame
*/
-int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb);
+unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb);
/**
* ieee80211_get_hdrlen - get header length from frame control
*/
int ieee80211_get_hdrlen(u16 fc);
+/**
+ * ieee80211_hdrlen - get header length in bytes from frame control
+ * @fc: frame control field in little-endian format
+ */
+unsigned int ieee80211_hdrlen(__le16 fc);
+
/**
* ieee80211_get_tkip_key - get a TKIP rc4 for skb
*
* @keyconf: the parameter passed with the set key
* @skb: the skb for which the key is needed
* @rc4key: a buffer to which the key will be written
+ * @type: TBD
+ * @key: TBD
*/
void ieee80211_get_tkip_key(struct ieee80211_key_conf *keyconf,
struct sk_buff *skb,
*
* This function iterates over the interfaces associated with a given
* hardware that are currently active and calls the callback for them.
+ * This function allows the iterator function to sleep, when the iterator
+ * function is atomic @ieee80211_iterate_active_interfaces_atomic can
+ * be used.
*
* @hw: the hardware struct of which the interfaces should be iterated over
- * @iterator: the iterator function to call, cannot sleep
+ * @iterator: the iterator function to call
* @data: first argument of the iterator function
*/
void ieee80211_iterate_active_interfaces(struct ieee80211_hw *hw,
struct ieee80211_vif *vif),
void *data);
+/**
+ * ieee80211_iterate_active_interfaces_atomic - iterate active interfaces
+ *
+ * This function iterates over the interfaces associated with a given
+ * hardware that are currently active and calls the callback for them.
+ * This function requires the iterator callback function to be atomic,
+ * if that is not desired, use @ieee80211_iterate_active_interfaces instead.
+ *
+ * @hw: the hardware struct of which the interfaces should be iterated over
+ * @iterator: the iterator function to call, cannot sleep
+ * @data: first argument of the iterator function
+ */
+void ieee80211_iterate_active_interfaces_atomic(struct ieee80211_hw *hw,
+ void (*iterator)(void *data,
+ u8 *mac,
+ struct ieee80211_vif *vif),
+ void *data);
+
/**
* ieee80211_start_tx_ba_session - Start a tx Block Ack session.
* @hw: pointer as obtained from ieee80211_alloc_hw().
*
* This function must be called by low level driver once it has
* finished with preparations for the BA session.
- * This version of the function is irq safe.
+ * This version of the function is IRQ-safe.
*/
void ieee80211_start_tx_ba_cb_irqsafe(struct ieee80211_hw *hw, const u8 *ra,
u16 tid);
*
* This function must be called by low level driver once it has
* finished with preparations for the BA session tear down.
- * This version of the function is irq safe.
+ * This version of the function is IRQ-safe.
*/
void ieee80211_stop_tx_ba_cb_irqsafe(struct ieee80211_hw *hw, const u8 *ra,
u16 tid);
/**
* ieee80211_notify_mac - low level driver notification
* @hw: pointer as obtained from ieee80211_alloc_hw().
- * @notification_types: enum ieee80211_notification_types
+ * @notif_type: enum ieee80211_notification_types
*
* This function must be called by low level driver to inform mac80211 of
* low level driver status change or force mac80211 to re-assoc for low