diff options
Diffstat (limited to 'include/net/mac80211.h')
| -rw-r--r-- | include/net/mac80211.h | 878 |
1 files changed, 714 insertions, 164 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h index f7eba1300d8..421b6ecb4b2 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -66,10 +66,6 @@ * * Secondly, when the hardware handles fragmentation, the frame handed to * the driver from mac80211 is the MSDU, not the MPDU. - * - * Finally, for received frames, the driver is able to indicate that it has - * filled a radiotap header and put that in front of the frame; if it does - * not do so then mac80211 may add this under certain circumstances. */ /** @@ -93,9 +89,11 @@ struct device; * enum ieee80211_max_queues - maximum number of queues * * @IEEE80211_MAX_QUEUES: Maximum number of regular device queues. + * @IEEE80211_MAX_QUEUE_MAP: bitmap with maximum queues set */ enum ieee80211_max_queues { IEEE80211_MAX_QUEUES = 16, + IEEE80211_MAX_QUEUE_MAP = BIT(IEEE80211_MAX_QUEUES) - 1, }; #define IEEE80211_INVAL_HW_QUEUE 0xff @@ -126,6 +124,7 @@ enum ieee80211_ac_numbers { * 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 + * @acm: is mandatory admission control required for the access category * @uapsd: is U-APSD mode enabled for the queue */ struct ieee80211_tx_queue_params { @@ -133,6 +132,7 @@ struct ieee80211_tx_queue_params { u16 cw_min; u16 cw_max; u8 aifs; + bool acm; bool uapsd; }; @@ -148,11 +148,16 @@ struct ieee80211_low_level_stats { * @IEEE80211_CHANCTX_CHANGE_WIDTH: The channel width changed * @IEEE80211_CHANCTX_CHANGE_RX_CHAINS: The number of RX chains changed * @IEEE80211_CHANCTX_CHANGE_RADAR: radar detection flag changed + * @IEEE80211_CHANCTX_CHANGE_CHANNEL: switched to another operating channel, + * this is used only with channel switching with CSA + * @IEEE80211_CHANCTX_CHANGE_MIN_WIDTH: The min required channel width changed */ enum ieee80211_chanctx_change { IEEE80211_CHANCTX_CHANGE_WIDTH = BIT(0), IEEE80211_CHANCTX_CHANGE_RX_CHAINS = BIT(1), IEEE80211_CHANCTX_CHANGE_RADAR = BIT(2), + IEEE80211_CHANCTX_CHANGE_CHANNEL = BIT(3), + IEEE80211_CHANCTX_CHANGE_MIN_WIDTH = BIT(4), }; /** @@ -162,6 +167,7 @@ enum ieee80211_chanctx_change { * that contains it is visible in mac80211 only. * * @def: the channel definition + * @min_def: the minimum channel definition currently required. * @rx_chains_static: The number of RX chains that must always be * active on the channel to receive MIMO transmissions * @rx_chains_dynamic: The number of RX chains that must be enabled @@ -173,6 +179,7 @@ enum ieee80211_chanctx_change { */ struct ieee80211_chanctx_conf { struct cfg80211_chan_def def; + struct cfg80211_chan_def min_def; u8 rx_chains_static, rx_chains_dynamic; @@ -182,6 +189,43 @@ struct ieee80211_chanctx_conf { }; /** + * enum ieee80211_chanctx_switch_mode - channel context switch mode + * @CHANCTX_SWMODE_REASSIGN_VIF: Both old and new contexts already + * exist (and will continue to exist), but the virtual interface + * needs to be switched from one to the other. + * @CHANCTX_SWMODE_SWAP_CONTEXTS: The old context exists but will stop + * to exist with this call, the new context doesn't exist but + * will be active after this call, the virtual interface switches + * from the old to the new (note that the driver may of course + * implement this as an on-the-fly chandef switch of the existing + * hardware context, but the mac80211 pointer for the old context + * will cease to exist and only the new one will later be used + * for changes/removal.) + */ +enum ieee80211_chanctx_switch_mode { + CHANCTX_SWMODE_REASSIGN_VIF, + CHANCTX_SWMODE_SWAP_CONTEXTS, +}; + +/** + * struct ieee80211_vif_chanctx_switch - vif chanctx switch information + * + * This is structure is used to pass information about a vif that + * needs to switch from one chanctx to another. The + * &ieee80211_chanctx_switch_mode defines how the switch should be + * done. + * + * @vif: the vif that should be switched from old_ctx to new_ctx + * @old_ctx: the old context to which the vif was assigned + * @new_ctx: the new context to which the vif must be assigned + */ +struct ieee80211_vif_chanctx_switch { + struct ieee80211_vif *vif; + struct ieee80211_chanctx_conf *old_ctx; + struct ieee80211_chanctx_conf *new_ctx; +}; + +/** * enum ieee80211_bss_change - BSS change notification flags * * These flags are used with the bss_info_changed() callback @@ -207,14 +251,14 @@ struct ieee80211_chanctx_conf { * @BSS_CHANGED_QOS: QoS for this association was enabled/disabled. Note * that it is only ever disabled for station mode. * @BSS_CHANGED_IDLE: Idle changed for this BSS/interface. - * @BSS_CHANGED_SSID: SSID changed for this BSS (AP mode) + * @BSS_CHANGED_SSID: SSID changed for this BSS (AP and IBSS mode) * @BSS_CHANGED_AP_PROBE_RESP: Probe Response changed for this BSS (AP mode) * @BSS_CHANGED_PS: PS changed for this BSS (STA mode) * @BSS_CHANGED_TXPOWER: TX power setting changed for this interface * @BSS_CHANGED_P2P_PS: P2P powersave settings (CTWindow, opportunistic PS) * changed (currently only in P2P client mode, GO mode will be later) - * @BSS_CHANGED_DTIM_PERIOD: the DTIM period value was changed (set when - * it becomes valid, managed mode only) + * @BSS_CHANGED_BEACON_INFO: Data from the AP's beacon became available: + * currently dtim_period only is under consideration. * @BSS_CHANGED_BANDWIDTH: The bandwidth used by this interface changed, * note that this is only called when it changes after the channel * context had been assigned. @@ -240,7 +284,7 @@ enum ieee80211_bss_change { BSS_CHANGED_PS = 1<<17, BSS_CHANGED_TXPOWER = 1<<18, BSS_CHANGED_P2P_PS = 1<<19, - BSS_CHANGED_DTIM_PERIOD = 1<<20, + BSS_CHANGED_BEACON_INFO = 1<<20, BSS_CHANGED_BANDWIDTH = 1<<21, /* when adding here, make sure to change ieee80211_reconfig */ @@ -284,7 +328,7 @@ enum ieee80211_rssi_event { * IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE hardware flag * @dtim_period: num of beacons before the next DTIM, for beaconing, * valid in station mode only if after the driver was notified - * with the %BSS_CHANGED_DTIM_PERIOD flag, will be non-zero then. + * with the %BSS_CHANGED_BEACON_INFO flag, will be non-zero then. * @sync_tsf: last beacon's/probe response's TSF timestamp (could be old * as it may have been received during scanning long ago). If the * HW flag %IEEE80211_HW_TIMING_BEACON_ONLY is set, then this can @@ -301,6 +345,7 @@ enum ieee80211_rssi_event { * @basic_rates: bitmap of basic rates, each bit stands for an * index into the rate table configured by the driver in * the current band. + * @beacon_rate: associated AP's beacon TX rate * @mcast_rate: per-band multicast rate index + 1 (0: disabled) * @bssid: The BSSID for this BSS * @enable_beacon: whether beaconing should be enabled or not @@ -324,12 +369,11 @@ enum ieee80211_rssi_event { * your driver/device needs to do. * @ps: power-save mode (STA only). This flag is NOT affected by * offchannel/dynamic_ps operations. - * @ssid: The SSID of the current vif. Only valid in AP-mode. + * @ssid: The SSID of the current vif. Valid in AP and IBSS mode. * @ssid_len: Length of SSID given in @ssid. * @hidden_ssid: The SSID of the current vif is hidden. Only valid in AP-mode. * @txpower: TX power in dBm - * @p2p_ctwindow: P2P CTWindow, only for P2P client interfaces - * @p2p_oppps: P2P opportunistic PS is enabled + * @p2p_noa_attr: P2P NoA attribute for P2P powersave */ struct ieee80211_bss_conf { const u8 *bssid; @@ -349,6 +393,7 @@ struct ieee80211_bss_conf { u32 sync_device_ts; u8 sync_dtim_count; u32 basic_rates; + struct ieee80211_rate *beacon_rate; int mcast_rate[IEEE80211_NUM_BANDS]; u16 ht_operation_mode; s32 cqm_rssi_thold; @@ -363,12 +408,11 @@ struct ieee80211_bss_conf { size_t ssid_len; bool hidden_ssid; int txpower; - u8 p2p_ctwindow; - bool p2p_oppps; + struct ieee80211_p2p_noa_attr p2p_noa_attr; }; /** - * enum mac80211_tx_control_flags - flags to describe transmission information/status + * enum mac80211_tx_info_flags - flags to describe transmission information/status * * These flags are used with the @flags member of &ieee80211_tx_info. * @@ -458,11 +502,13 @@ struct ieee80211_bss_conf { * @IEEE80211_TX_CTL_DONTFRAG: Don't fragment this packet even if it * would be fragmented by size (this is optional, only used for * monitor injection). + * @IEEE80211_TX_CTL_PS_RESPONSE: This frame is a response to a poll + * frame (PS-Poll or uAPSD). * * Note: If you have to add new flags to the enumeration, then don't * forget to update %IEEE80211_TX_TEMPORARY_FLAGS when necessary. */ -enum mac80211_tx_control_flags { +enum mac80211_tx_info_flags { IEEE80211_TX_CTL_REQ_TX_STATUS = BIT(0), IEEE80211_TX_CTL_ASSIGN_SEQ = BIT(1), IEEE80211_TX_CTL_NO_ACK = BIT(2), @@ -493,10 +539,23 @@ enum mac80211_tx_control_flags { IEEE80211_TX_STATUS_EOSP = BIT(28), IEEE80211_TX_CTL_USE_MINRATE = BIT(29), IEEE80211_TX_CTL_DONTFRAG = BIT(30), + IEEE80211_TX_CTL_PS_RESPONSE = BIT(31), }; #define IEEE80211_TX_CTL_STBC_SHIFT 23 +/** + * enum mac80211_tx_control_flags - flags to describe transmit control + * + * @IEEE80211_TX_CTRL_PORT_CTRL_PROTO: this frame is a port control + * protocol frame (e.g. EAP) + * + * These flags are used in tx_info->control.flags. + */ +enum mac80211_tx_control_flags { + IEEE80211_TX_CTRL_PORT_CTRL_PROTO = BIT(0), +}; + /* * This definition is used as a mask to clear all temporary flags, which are * set by the tx handlers for each transmission attempt by the mac80211 stack. @@ -561,6 +620,9 @@ enum mac80211_rate_control_flags { /* maximum number of rate stages */ #define IEEE80211_TX_MAX_RATES 4 +/* maximum number of rate table entries */ +#define IEEE80211_TX_RATE_TABLE_SIZE 4 + /** * struct ieee80211_tx_rate - rate selection/status * @@ -601,8 +663,8 @@ static inline void ieee80211_rate_set_vht(struct ieee80211_tx_rate *rate, u8 mcs, u8 nss) { WARN_ON(mcs & ~0xF); - WARN_ON(nss & ~0x7); - rate->idx = (nss << 4) | mcs; + WARN_ON((nss - 1) & ~0x7); + rate->idx = ((nss - 1) << 4) | mcs; } static inline u8 @@ -614,7 +676,7 @@ ieee80211_rate_get_vht_mcs(const struct ieee80211_tx_rate *rate) static inline u8 ieee80211_rate_get_vht_nss(const struct ieee80211_tx_rate *rate) { - return rate->idx >> 4; + return (rate->idx >> 4) + 1; } /** @@ -655,7 +717,11 @@ struct ieee80211_tx_info { struct ieee80211_tx_rate rates[ IEEE80211_TX_MAX_RATES]; s8 rts_cts_rate_idx; - /* 3 bytes free */ + u8 use_rts:1; + u8 use_cts_prot:1; + u8 short_preamble:1; + u8 skip_table:1; + /* 2 bytes free */ }; /* only needed before rate control */ unsigned long jiffies; @@ -663,19 +729,22 @@ struct ieee80211_tx_info { /* NB: vif can be NULL for injected frames */ struct ieee80211_vif *vif; struct ieee80211_key_conf *hw_key; - /* 8 bytes free */ + u32 flags; + /* 4 bytes free */ } control; struct { struct ieee80211_tx_rate rates[IEEE80211_TX_MAX_RATES]; - int ack_signal; + s32 ack_signal; u8 ampdu_ack_len; u8 ampdu_len; u8 antenna; - /* 21 bytes free */ + void *status_driver_data[21 / sizeof(void *)]; } status; struct { struct ieee80211_tx_rate driver_rates[ IEEE80211_TX_MAX_RATES]; + u8 pad[4]; + void *rate_driver_data[ IEEE80211_TX_INFO_RATE_DRIVER_DATA_SIZE / sizeof(void *)]; }; @@ -772,9 +841,6 @@ ieee80211_tx_info_clear_status(struct ieee80211_tx_info *info) * @RX_FLAG_HT: HT MCS was used and rate_idx is MCS index * @RX_FLAG_VHT: VHT MCS was used and rate_index is MCS index * @RX_FLAG_40MHZ: HT40 (40 MHz) was used - * @RX_FLAG_80MHZ: 80 MHz was used - * @RX_FLAG_80P80MHZ: 80+80 MHz was used - * @RX_FLAG_160MHZ: 160 MHz was used * @RX_FLAG_SHORT_GI: Short guard interval was used * @RX_FLAG_NO_SIGNAL_VAL: The signal strength value is not present. * Valid only for data frames (mainly A-MPDU) @@ -794,6 +860,19 @@ ieee80211_tx_info_clear_status(struct ieee80211_tx_info *info) * on this subframe * @RX_FLAG_AMPDU_DELIM_CRC_KNOWN: The delimiter CRC field is known (the CRC * is stored in the @ampdu_delimiter_crc field) + * @RX_FLAG_LDPC: LDPC was used + * @RX_FLAG_STBC_MASK: STBC 2 bit bitmask. 1 - Nss=1, 2 - Nss=2, 3 - Nss=3 + * @RX_FLAG_10MHZ: 10 MHz (half channel) was used + * @RX_FLAG_5MHZ: 5 MHz (quarter channel) was used + * @RX_FLAG_AMSDU_MORE: Some drivers may prefer to report separate A-MSDU + * subframes instead of a one huge frame for performance reasons. + * All, but the last MSDU from an A-MSDU should have this flag set. E.g. + * if an A-MSDU has 3 frames, the first 2 must have the flag set, while + * the 3rd (last) one must not have this flag set. The flag is used to + * deal with retransmission/duplication recovery properly since A-MSDU + * subframes share the same sequence number. Reported subframes can be + * either regular MSDU or singly A-MSDUs. Subframes must not be + * interleaved with other frames. */ enum mac80211_rx_flags { RX_FLAG_MMIC_ERROR = BIT(0), @@ -818,9 +897,30 @@ enum mac80211_rx_flags { RX_FLAG_AMPDU_DELIM_CRC_KNOWN = BIT(20), RX_FLAG_MACTIME_END = BIT(21), RX_FLAG_VHT = BIT(22), - RX_FLAG_80MHZ = BIT(23), - RX_FLAG_80P80MHZ = BIT(24), - RX_FLAG_160MHZ = BIT(25), + RX_FLAG_LDPC = BIT(23), + RX_FLAG_STBC_MASK = BIT(26) | BIT(27), + RX_FLAG_10MHZ = BIT(28), + RX_FLAG_5MHZ = BIT(29), + RX_FLAG_AMSDU_MORE = BIT(30), +}; + +#define RX_FLAG_STBC_SHIFT 26 + +/** + * enum mac80211_rx_vht_flags - receive VHT flags + * + * These flags are used with the @vht_flag member of + * &struct ieee80211_rx_status. + * @RX_VHT_FLAG_80MHZ: 80 MHz was used + * @RX_VHT_FLAG_80P80MHZ: 80+80 MHz was used + * @RX_VHT_FLAG_160MHZ: 160 MHz was used + * @RX_VHT_FLAG_BF: packet was beamformed + */ +enum mac80211_rx_vht_flags { + RX_VHT_FLAG_80MHZ = BIT(0), + RX_VHT_FLAG_80P80MHZ = BIT(1), + RX_VHT_FLAG_160MHZ = BIT(2), + RX_VHT_FLAG_BF = BIT(3), }; /** @@ -839,41 +939,37 @@ enum mac80211_rx_flags { * @signal: signal strength when receiving this frame, either in dBm, in dB or * unspecified depending on the hardware capabilities flags * @IEEE80211_HW_SIGNAL_* + * @chains: bitmask of receive chains for which separate signal strength + * values were filled. + * @chain_signal: per-chain signal strength, in dBm (unlike @signal, doesn't + * support dB or unspecified units) * @antenna: antenna used * @rate_idx: index of data rate into band's supported rates or MCS index if * HT or VHT is used (%RX_FLAG_HT/%RX_FLAG_VHT) * @vht_nss: number of streams (VHT only) * @flag: %RX_FLAG_* + * @vht_flag: %RX_VHT_FLAG_* * @rx_flags: internal RX flags for mac80211 * @ampdu_reference: A-MPDU reference number, must be a different value for * each A-MPDU but the same for each subframe within one A-MPDU * @ampdu_delimiter_crc: A-MPDU delimiter CRC - * @vendor_radiotap_bitmap: radiotap vendor namespace presence bitmap - * @vendor_radiotap_len: radiotap vendor namespace length - * @vendor_radiotap_align: radiotap vendor namespace alignment. Note - * that the actual data must be at the start of the SKB data - * already. - * @vendor_radiotap_oui: radiotap vendor namespace OUI - * @vendor_radiotap_subns: radiotap vendor sub namespace */ struct ieee80211_rx_status { u64 mactime; u32 device_timestamp; u32 ampdu_reference; u32 flag; - u32 vendor_radiotap_bitmap; - u16 vendor_radiotap_len; u16 freq; + u8 vht_flag; u8 rate_idx; u8 vht_nss; u8 rx_flags; u8 band; u8 antenna; s8 signal; + u8 chains; + s8 chain_signal[IEEE80211_MAX_CHAINS]; u8 ampdu_delimiter_crc; - u8 vendor_radiotap_align; - u8 vendor_radiotap_oui[3]; - u8 vendor_radiotap_subns; }; /** @@ -974,16 +1070,15 @@ enum ieee80211_smps_mode { * @power_level: requested transmit power (in dBm), backward compatibility * value only that is set to the minimum of all interfaces * - * @channel: the channel to tune to - * @channel_type: the channel (HT) type + * @chandef: the channel definition to tune to * @radar_enabled: whether radar detection is enabled * * @long_frame_max_tx_count: Maximum number of transmissions for a "long" frame - * (a frame not RTS protected), called "dot11LongRetryLimit" in 802.11, - * but actually means the number of transmissions not the number of retries + * (a frame not RTS protected), called "dot11LongRetryLimit" in 802.11, + * but actually means the number of transmissions not the number of retries * @short_frame_max_tx_count: Maximum number of transmissions for a "short" - * frame, called "dot11ShortRetryLimit" in 802.11, but actually means the - * number of transmissions not the number of retries + * frame, called "dot11ShortRetryLimit" in 802.11, but actually means the + * number of transmissions not the number of retries * * @smps_mode: spatial multiplexing powersave mode; note that * %IEEE80211_SMPS_STATIC is used when the device is not @@ -1001,8 +1096,7 @@ struct ieee80211_conf { u8 long_frame_max_tx_count, short_frame_max_tx_count; - struct ieee80211_channel *channel; - enum nl80211_channel_type channel_type; + struct cfg80211_chan_def chandef; bool radar_enabled; enum ieee80211_smps_mode smps_mode; }; @@ -1019,13 +1113,13 @@ struct ieee80211_conf { * the driver passed into mac80211. * @block_tx: Indicates whether transmission must be blocked before the * scheduled channel switch, as indicated by the AP. - * @channel: the new channel to switch to + * @chandef: the new channel to switch to * @count: the number of TBTT's until the channel switch event */ struct ieee80211_channel_switch { u64 timestamp; bool block_tx; - struct ieee80211_channel *channel; + struct cfg80211_chan_def chandef; u8 count; }; @@ -1056,6 +1150,9 @@ enum ieee80211_vif_flags { * @addr: address of this interface * @p2p: indicates whether this AP or STA interface is a p2p * interface, i.e. a GO or p2p-sta respectively + * @csa_active: marks whether a channel switch is going on. Internally it is + * write-protected by sdata_lock and local->mtx so holding either is fine + * for read access. * @driver_flags: flags/capabilities the driver has for this interface, * these need to be set (or cleared) when the interface is added * or, if supported by the driver, the interface type is changed @@ -1067,6 +1164,9 @@ enum ieee80211_vif_flags { * path needing to access it; even though the netdev carrier will always * be off when it is %NULL there can still be races and packets could be * processed after it switches back to %NULL. + * @debugfs_dir: debugfs dentry, can be used by drivers to create own per + * interface debug files. Note that it will be NULL for the virtual + * monitor interface (if that is requested.) * @drv_priv: data area for driver use, will always be aligned to * sizeof(void *). */ @@ -1075,6 +1175,7 @@ struct ieee80211_vif { struct ieee80211_bss_conf bss_conf; u8 addr[ETH_ALEN]; bool p2p; + bool csa_active; u8 cab_queue; u8 hw_queue[IEEE80211_NUM_ACS]; @@ -1083,6 +1184,10 @@ struct ieee80211_vif { u32 driver_flags; +#ifdef CONFIG_MAC80211_DEBUGFS + struct dentry *debugfs_dir; +#endif + /* must be last */ u8 drv_priv[0] __aligned(sizeof(void *)); }; @@ -1096,13 +1201,24 @@ static inline bool ieee80211_vif_is_mesh(struct ieee80211_vif *vif) } /** + * wdev_to_ieee80211_vif - return a vif struct from a wdev + * @wdev: the wdev to get the vif for + * + * This can be used by mac80211 drivers with direct cfg80211 APIs + * (like the vendor commands) that get a wdev. + * + * Note that this function may return %NULL if the given wdev isn't + * associated with a vif that the driver knows about (e.g. monitor + * or AP_VLAN interfaces.) + */ +struct ieee80211_vif *wdev_to_ieee80211_vif(struct wireless_dev *wdev); + +/** * enum ieee80211_key_flags - key flags * * These flags are used for communication about keys between the driver * and mac80211, with the @flags parameter of &struct ieee80211_key_conf. * - * @IEEE80211_KEY_FLAG_WMM_STA: Set by mac80211, this flag indicates - * that the STA this key will be used with could be using QoS. * @IEEE80211_KEY_FLAG_GENERATE_IV: This flag should be set by the * driver to indicate that it requires IV generation for this * particular key. @@ -1125,15 +1241,18 @@ static inline bool ieee80211_vif_is_mesh(struct ieee80211_vif *vif) * fall back to software crypto. Note that this flag deals only with * RX, if your crypto engine can't deal with TX you can also set the * %IEEE80211_KEY_FLAG_SW_MGMT_TX flag to encrypt such frames in SW. + * @IEEE80211_KEY_FLAG_GENERATE_IV_MGMT: This flag should be set by the + * driver for a CCMP key to indicate that is requires IV generation + * only for managment frames (MFP). */ enum ieee80211_key_flags { - IEEE80211_KEY_FLAG_WMM_STA = 1<<0, - IEEE80211_KEY_FLAG_GENERATE_IV = 1<<1, - IEEE80211_KEY_FLAG_GENERATE_MMIC= 1<<2, - IEEE80211_KEY_FLAG_PAIRWISE = 1<<3, - IEEE80211_KEY_FLAG_SW_MGMT_TX = 1<<4, - IEEE80211_KEY_FLAG_PUT_IV_SPACE = 1<<5, - IEEE80211_KEY_FLAG_RX_MGMT = 1<<6, + IEEE80211_KEY_FLAG_GENERATE_IV_MGMT = BIT(0), + IEEE80211_KEY_FLAG_GENERATE_IV = BIT(1), + IEEE80211_KEY_FLAG_GENERATE_MMIC = BIT(2), + IEEE80211_KEY_FLAG_PAIRWISE = BIT(3), + IEEE80211_KEY_FLAG_SW_MGMT_TX = BIT(4), + IEEE80211_KEY_FLAG_PUT_IV_SPACE = BIT(5), + IEEE80211_KEY_FLAG_RX_MGMT = BIT(6), }; /** @@ -1169,6 +1288,36 @@ struct ieee80211_key_conf { }; /** + * struct ieee80211_cipher_scheme - cipher scheme + * + * This structure contains a cipher scheme information defining + * the secure packet crypto handling. + * + * @cipher: a cipher suite selector + * @iftype: a cipher iftype bit mask indicating an allowed cipher usage + * @hdr_len: a length of a security header used the cipher + * @pn_len: a length of a packet number in the security header + * @pn_off: an offset of pn from the beginning of the security header + * @key_idx_off: an offset of key index byte in the security header + * @key_idx_mask: a bit mask of key_idx bits + * @key_idx_shift: a bit shift needed to get key_idx + * key_idx value calculation: + * (sec_header_base[key_idx_off] & key_idx_mask) >> key_idx_shift + * @mic_len: a mic length in bytes + */ +struct ieee80211_cipher_scheme { + u32 cipher; + u16 iftype; + u8 hdr_len; + u8 pn_len; + u8 pn_off; + u8 key_idx_off; + u8 key_idx_mask; + u8 key_idx_shift; + u8 mic_len; +}; + +/** * enum set_key_cmd - key command * * Used with the set_key() callback in &struct ieee80211_ops, this @@ -1219,6 +1368,24 @@ enum ieee80211_sta_rx_bandwidth { }; /** + * struct ieee80211_sta_rates - station rate selection table + * + * @rcu_head: RCU head used for freeing the table on update + * @rate: transmit rates/flags to be used by default. + * Overriding entries per-packet is possible by using cb tx control. + */ +struct ieee80211_sta_rates { + struct rcu_head rcu_head; + struct { + s8 idx; + u8 count; + u8 count_cts; + u8 count_rts; + u16 flags; + } rate[IEEE80211_TX_RATE_TABLE_SIZE]; +}; + +/** * struct ieee80211_sta - station table entry * * A station table entry represents a station we are possibly @@ -1231,9 +1398,8 @@ enum ieee80211_sta_rx_bandwidth { * @addr: MAC address * @aid: AID we assigned to the station if we're an AP * @supp_rates: Bitmap of supported rates (per band) - * @ht_cap: HT capabilities of this STA; restricted to our own TX capabilities - * @vht_cap: VHT capabilities of this STA; Not restricting any capabilities - * of remote STA. Taking as is. + * @ht_cap: HT capabilities of this STA; restricted to our own capabilities + * @vht_cap: VHT capabilities of this STA; restricted to our own capabilities * @wme: indicates whether the STA supports WME. Only valid during AP-mode. * @drv_priv: data area for driver use, will always be aligned to * sizeof(void *), size is determined in hw information. @@ -1246,6 +1412,8 @@ enum ieee80211_sta_rx_bandwidth { * notifications and capabilities. The value is only valid after * the station moves to associated state. * @smps_mode: current SMPS mode (off, static or dynamic) + * @rates: rate control selection table + * @tdls: indicates whether the STA is a TDLS peer */ struct ieee80211_sta { u32 supp_rates[IEEE80211_NUM_BANDS]; @@ -1259,6 +1427,8 @@ struct ieee80211_sta { u8 rx_nss; enum ieee80211_sta_rx_bandwidth bandwidth; enum ieee80211_smps_mode smps_mode; + struct ieee80211_sta_rates __rcu *rates; + bool tdls; /* must be last */ u8 drv_priv[0] __aligned(sizeof(void *)); @@ -1378,10 +1548,8 @@ struct ieee80211_tx_control { * the stack. * * @IEEE80211_HW_CONNECTION_MONITOR: - * The hardware performs its own connection monitoring, including - * periodic keep-alives to the AP and probing the AP on beacon loss. - * When this flag is set, signaling beacon-loss will cause an immediate - * change to disassociated state. + * The hardware performs its own connection monitoring, including + * periodic keep-alives to the AP and probing the AP on beacon loss. * * @IEEE80211_HW_NEED_DTIM_BEFORE_ASSOC: * This device needs to get data from beacon before association (i.e. @@ -1414,12 +1582,30 @@ struct ieee80211_tx_control { * for different virtual interfaces. See the doc section on HW queue * control for more details. * + * @IEEE80211_HW_SUPPORTS_RC_TABLE: The driver supports using a rate + * selection table provided by the rate control algorithm. + * * @IEEE80211_HW_P2P_DEV_ADDR_FOR_INTF: Use the P2P Device address for any * P2P Interface. This will be honoured even if more than one interface * is supported. * * @IEEE80211_HW_TIMING_BEACON_ONLY: Use sync timing from beacon frames * only, to allow getting TBTT of a DTIM beacon. + * + * @IEEE80211_HW_SUPPORTS_HT_CCK_RATES: Hardware supports mixing HT/CCK rates + * and can cope with CCK rates in an aggregation session (e.g. by not + * using aggregation for such frames.) + * + * @IEEE80211_HW_CHANCTX_STA_CSA: Support 802.11h based channel-switch (CSA) + * for a single active channel while using channel contexts. When support + * is not enabled the default action is to disconnect when getting the + * CSA frame. + * + * @IEEE80211_HW_CHANGE_RUNNING_CHANCTX: The hardware can change a + * channel context on-the-fly. This is needed for channel switch + * on single-channel hardware. It can also be used as an + * optimization in certain channel switch cases with + * multi-channel. */ enum ieee80211_hw_flags { IEEE80211_HW_HAS_RATE_CONTROL = 1<<0, @@ -1446,8 +1632,12 @@ enum ieee80211_hw_flags { IEEE80211_HW_SUPPORTS_PER_STA_GTK = 1<<21, IEEE80211_HW_AP_LINK_PS = 1<<22, IEEE80211_HW_TX_AMPDU_SETUP_IN_HW = 1<<23, + IEEE80211_HW_SUPPORTS_RC_TABLE = 1<<24, IEEE80211_HW_P2P_DEV_ADDR_FOR_INTF = 1<<25, IEEE80211_HW_TIMING_BEACON_ONLY = 1<<26, + IEEE80211_HW_SUPPORTS_HT_CCK_RATES = 1<<27, + IEEE80211_HW_CHANCTX_STA_CSA = 1<<28, + IEEE80211_HW_CHANGE_RUNNING_CHANCTX = 1<<29, }; /** @@ -1472,13 +1662,14 @@ enum ieee80211_hw_flags { * @extra_tx_headroom: headroom to reserve in each transmit skb * for use by the driver (e.g. for transmit headers.) * - * @channel_change_time: time (in microseconds) it takes to change channels. + * @extra_beacon_tailroom: tailroom to reserve in each beacon tx skb. + * Can be used by drivers to add extra IEs. * * @max_signal: Maximum value for signal (rssi) in RX information, used - * only when @IEEE80211_HW_SIGNAL_UNSPEC or @IEEE80211_HW_SIGNAL_DB + * only when @IEEE80211_HW_SIGNAL_UNSPEC or @IEEE80211_HW_SIGNAL_DB * * @max_listen_interval: max listen interval in units of beacon interval - * that HW supports + * that HW supports * * @queues: number of available hardware transmit queues for * data packets. WMM/QoS requires at least four, these @@ -1501,10 +1692,6 @@ enum ieee80211_hw_flags { * the hw can report back. * @max_rate_tries: maximum number of tries for each stage * - * @napi_weight: weight used for NAPI polling. You must specify an - * appropriate value here if a napi_poll operation is provided - * by your driver. - * * @max_rx_aggregation_subframes: maximum buffer size (number of * sub-frames) to be used for A-MPDU block ack receiver * aggregation. @@ -1531,6 +1718,21 @@ enum ieee80211_hw_flags { * @netdev_features: netdev features to be set in each netdev created * from this HW. Note only HW checksum features are currently * compatible with mac80211. Other feature bits will be rejected. + * + * @uapsd_queues: This bitmap is included in (re)association frame to indicate + * for each access category if it is uAPSD trigger-enabled and delivery- + * enabled. Use IEEE80211_WMM_IE_STA_QOSINFO_AC_* to set this bitmap. + * Each bit corresponds to different AC. Value '1' in specific bit means + * that corresponding AC is both trigger- and delivery-enabled. '0' means + * neither enabled. + * + * @uapsd_max_sp_len: maximum number of total buffered frames the WMM AP may + * deliver to a WMM STA during any Service Period triggered by the WMM STA. + * Use IEEE80211_WMM_IE_STA_QOSINFO_SP_* for correct values. + * + * @n_cipher_schemes: a size of an array of cipher schemes definitions. + * @cipher_schemes: a pointer to an array of cipher scheme definitions + * supported by HW. */ struct ieee80211_hw { struct ieee80211_conf conf; @@ -1539,11 +1741,10 @@ struct ieee80211_hw { void *priv; u32 flags; unsigned int extra_tx_headroom; - int channel_change_time; + unsigned int extra_beacon_tailroom; int vif_data_size; int sta_data_size; int chanctx_data_size; - int napi_weight; u16 queues; u16 max_listen_interval; s8 max_signal; @@ -1556,6 +1757,10 @@ struct ieee80211_hw { u8 radiotap_mcs_details; u16 radiotap_vht_details; netdev_features_t netdev_features; + u8 uapsd_queues; + u8 uapsd_max_sp_len; + u8 n_cipher_schemes; + const struct ieee80211_cipher_scheme *cipher_schemes; }; /** @@ -1734,7 +1939,7 @@ void ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb); * * Driver informs U-APSD client support by enabling * %IEEE80211_HW_SUPPORTS_UAPSD flag. The mode is configured through the - * uapsd paramater in conf_tx() operation. Hardware needs to send the QoS + * uapsd parameter in conf_tx() operation. Hardware needs to send the QoS * Nullfunc frames and stay awake until the service period has ended. To * utilize U-APSD, dynamic powersave is disabled for voip AC and all frames * from that AC are transmitted with powersave enabled. @@ -1940,7 +2145,7 @@ void ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb); * with the number of frames to be released and which TIDs they are * to come from. In this case, the driver is responsible for setting * the EOSP (for uAPSD) and MORE_DATA bits in the released frames, - * to help the @more_data paramter is passed to tell the driver if + * to help the @more_data parameter is passed to tell the driver if * there is more data on other TIDs -- the TIDs to release frames * from are ignored since mac80211 doesn't know how many frames the * buffers for those TIDs contain. @@ -1950,14 +2155,19 @@ void ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb); * filter those response frames except in the case of frames that * are buffered in the driver -- those must remain buffered to avoid * reordering. Because it is possible that no frames are released - * in this case, the driver must call ieee80211_sta_eosp_irqsafe() + * in this case, the driver must call ieee80211_sta_eosp() * to indicate to mac80211 that the service period ended anyway. * * Finally, if frames from multiple TIDs are released from mac80211 * but the driver might reorder them, it must clear & set the flags * appropriately (only the last frame may have %IEEE80211_TX_STATUS_EOSP) * and also take care of the EOSP and MORE_DATA bits in the frame. - * The driver may also use ieee80211_sta_eosp_irqsafe() in this case. + * The driver may also use ieee80211_sta_eosp() in this case. + * + * Note that if the driver ever buffers frames other than QoS-data + * frames, it must take care to never send a non-QoS-data frame as + * the last frame in a service period, adding a QoS-nulldata frame + * after a non-QoS-data frame if needed. */ /** @@ -2135,6 +2345,24 @@ enum ieee80211_rate_control_changed { }; /** + * enum ieee80211_roc_type - remain on channel type + * + * With the support for multi channel contexts and multi channel operations, + * remain on channel operations might be limited/deferred/aborted by other + * flows/operations which have higher priority (and vise versa). + * Specifying the ROC type can be used by devices to prioritize the ROC + * operations compared to other operations/flows. + * + * @IEEE80211_ROC_TYPE_NORMAL: There are no special requirements for this ROC. + * @IEEE80211_ROC_TYPE_MGMT_TX: The remain on channel request is required + * for sending managment frames offchannel. + */ +enum ieee80211_roc_type { + IEEE80211_ROC_TYPE_NORMAL = 0, + IEEE80211_ROC_TYPE_MGMT_TX, +}; + +/** * struct ieee80211_ops - callbacks from mac80211 to the driver * * This structure contains various callbacks that the driver may @@ -2212,18 +2440,6 @@ enum ieee80211_rate_control_changed { * MAC address of the device going away. * Hence, this callback must be implemented. It can sleep. * - * @add_interface_debugfs: Drivers can use this callback to add debugfs files - * when a vif is added to mac80211. This callback and - * @remove_interface_debugfs should be within a CONFIG_MAC80211_DEBUGFS - * conditional. @remove_interface_debugfs must be provided for cleanup. - * This callback can sleep. - * - * @remove_interface_debugfs: Remove the debugfs files which were added using - * @add_interface_debugfs. This callback must remove all debugfs entries - * that were added because mac80211 only removes interface debugfs when the - * interface is destroyed, not when it is removed from the driver. - * This callback can sleep. - * * @config: Handler for configuration requests. IEEE 802.11 code calls this * function to change hardware configuration, e.g., channel. * This function should never fail but returns a negative error code @@ -2298,6 +2514,7 @@ enum ieee80211_rate_control_changed { * This process will continue until sched_scan_stop is called. * * @sched_scan_stop: Tell the hardware to stop an ongoing scheduled scan. + * In this case, ieee80211_sched_scan_stopped() must not be called. * * @sw_scan_start: Notifier function that is called just before a software scan * is started. Can be NULL, if the driver doesn't need this notification. @@ -2329,7 +2546,11 @@ enum ieee80211_rate_control_changed { * AP, IBSS/WDS/mesh peer etc. This callback can sleep. * * @sta_remove: Notifies low level driver about removal of an associated - * station, AP, IBSS/WDS/mesh peer etc. This callback can sleep. + * station, AP, IBSS/WDS/mesh peer etc. Note that after the callback + * returns it isn't safe to use the pointer, not even RCU protected; + * no RCU grace period is guaranteed between returning here and freeing + * the station. See @sta_pre_rcu_remove if needed. + * This callback can sleep. * * @sta_add_debugfs: Drivers can use this callback to add debugfs files * when a station is added to mac80211's station list. This callback @@ -2348,7 +2569,17 @@ enum ieee80211_rate_control_changed { * station (which can be the AP, a client, IBSS/WDS/mesh peer etc.) * This callback is mutually exclusive with @sta_add/@sta_remove. * It must not fail for down transitions but may fail for transitions - * up the list of states. + * up the list of states. Also note that after the callback returns it + * isn't safe to use the pointer, not even RCU protected - no RCU grace + * period is guaranteed between returning here and freeing the station. + * See @sta_pre_rcu_remove if needed. + * The callback can sleep. + * + * @sta_pre_rcu_remove: Notify driver about station removal before RCU + * synchronisation. This is useful if a driver needs to have station + * pointers protected using RCU, it can then use this call to clear + * the pointers instead of waiting for an RCU grace period to elapse + * in @sta_state. * The callback can sleep. * * @sta_rc_update: Notifies the driver of changes to the bitrates that can be @@ -2370,7 +2601,7 @@ enum ieee80211_rate_control_changed { * The callback can sleep. * * @set_tsf: Set the TSF timer to the specified value in the firmware/hardware. - * Currently, this is only used for IBSS mode debugging. Is not a + * Currently, this is only used for IBSS mode debugging. Is not a * required function. * The callback can sleep. * @@ -2421,21 +2652,23 @@ enum ieee80211_rate_control_changed { * in IEEE 802.11-2007 section 17.3.8.6 and modify ACK timeout * accordingly. This callback is not required and may sleep. * - * @testmode_cmd: Implement a cfg80211 test mode command. - * The callback can sleep. + * @testmode_cmd: Implement a cfg80211 test mode command. The passed @vif may + * be %NULL. The callback can sleep. * @testmode_dump: Implement a cfg80211 test mode dump. The callback can sleep. * * @flush: Flush all pending frames from the hardware queue, making sure - * that the hardware queues are empty. If the parameter @drop is set - * to %true, pending frames may be dropped. The callback can sleep. + * that the hardware queues are empty. The @queues parameter is a bitmap + * of queues to flush, which is useful if different virtual interfaces + * use different hardware queues; it may also indicate all queues. + * If the parameter @drop is set to %true, pending frames may be dropped. + * Note that vif can be NULL. + * The callback can sleep. * * @channel_switch: Drivers that need (or want) to offload the channel * switch operation for CSAs received from the AP may implement this * callback. They must then call ieee80211_chswitch_done() to indicate * completion of the channel switch. * - * @napi_poll: Poll Rx queue for incoming data frames. - * * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device. * Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may * reject TX/RX mask combinations they cannot support by returning -EINVAL @@ -2473,7 +2706,7 @@ enum ieee80211_rate_control_changed { * parameters. In the case where the driver buffers some frames for * sleeping stations mac80211 will use this callback to tell the driver * to release some frames, either for PS-poll or uAPSD. - * Note that if the @more_data paramter is %false the driver must check + * Note that if the @more_data parameter is %false the driver must check * if there are more frames on the given TIDs, and if there are more than * the frames being released then it must still set the more-data bit in * the frame. If the @more_data parameter is %true, then of course the @@ -2492,7 +2725,7 @@ enum ieee80211_rate_control_changed { * setting the EOSP flag in the QoS header of the frames. Also, when the * service period ends, the driver must set %IEEE80211_TX_STATUS_EOSP * on the last frame in the SP. Alternatively, it may call the function - * ieee80211_sta_eosp_irqsafe() to inform mac80211 of the end of the SP. + * ieee80211_sta_eosp() to inform mac80211 of the end of the SP. * This callback must be atomic. * @allow_buffered_frames: Prepare device to allow the given number of frames * to go out to the given station. The frames will be sent by mac80211 @@ -2503,7 +2736,7 @@ enum ieee80211_rate_control_changed { * them between the TIDs, it must set the %IEEE80211_TX_STATUS_EOSP flag * on the last frame and clear it on all others and also handle the EOSP * bit in the QoS header correctly. Alternatively, it can also call the - * ieee80211_sta_eosp_irqsafe() function. + * ieee80211_sta_eosp() function. * The @tids parameter is a bitmap and tells the driver which TIDs the * frames will be on; it will at most have two bits set. * This callback must be atomic. @@ -2540,6 +2773,11 @@ enum ieee80211_rate_control_changed { * to vif. Possible use is for hw queue remapping. * @unassign_vif_chanctx: Notifies device driver about channel context being * unbound from vif. + * @switch_vif_chanctx: switch a number of vifs from one chanctx to + * another, as specified in the list of + * @ieee80211_vif_chanctx_switch passed to the driver, according + * to the mode defined in &ieee80211_chanctx_switch_mode. + * * @start_ap: Start operation on the AP interface, this is called after all the * information in bss_conf is set and beacon can be retrieved. A channel * context is bound before this is called. Note that if the driver uses @@ -2557,6 +2795,26 @@ enum ieee80211_rate_control_changed { * @ipv6_addr_change: IPv6 address assignment on the given interface changed. * Currently, this is only called for managed or P2P client interfaces. * This callback is optional; it must not sleep. + * + * @channel_switch_beacon: Starts a channel switch to a new channel. + * Beacons are modified to include CSA or ECSA IEs before calling this + * function. The corresponding count fields in these IEs must be + * decremented, and when they reach 1 the driver must call + * ieee80211_csa_finish(). Drivers which use ieee80211_beacon_get() + * get the csa counter decremented by mac80211, but must check if it is + * 1 using ieee80211_csa_is_complete() after the beacon has been + * transmitted and then call ieee80211_csa_finish(). + * If the CSA count starts as zero or 1, this function will not be called, + * since there won't be any time to beacon before the switch anyway. + * + * @join_ibss: Join an IBSS (on an IBSS interface); this is called after all + * information in bss_conf is set up and the beacon can be retrieved. A + * channel context is bound before this is called. + * @leave_ibss: Leave the IBSS again. + * + * @get_expected_throughput: extract the expected throughput towards the + * specified station. The returned value is expressed in Kbps. It returns 0 + * if the RC algorithm does not have proper data to provide. */ struct ieee80211_ops { void (*tx)(struct ieee80211_hw *hw, @@ -2614,7 +2872,7 @@ struct ieee80211_ops { struct ieee80211_vif *vif, struct cfg80211_sched_scan_request *req, struct ieee80211_sched_scan_ies *ies); - void (*sched_scan_stop)(struct ieee80211_hw *hw, + int (*sched_scan_stop)(struct ieee80211_hw *hw, struct ieee80211_vif *vif); void (*sw_scan_start)(struct ieee80211_hw *hw); void (*sw_scan_complete)(struct ieee80211_hw *hw); @@ -2637,12 +2895,6 @@ struct ieee80211_ops { struct ieee80211_vif *vif, struct ieee80211_sta *sta, struct dentry *dir); - void (*add_interface_debugfs)(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - struct dentry *dir); - void (*remove_interface_debugfs)(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - struct dentry *dir); #endif void (*sta_notify)(struct ieee80211_hw *hw, struct ieee80211_vif *vif, enum sta_notify_cmd, struct ieee80211_sta *sta); @@ -2650,6 +2902,9 @@ struct ieee80211_ops { struct ieee80211_sta *sta, enum ieee80211_sta_state old_state, enum ieee80211_sta_state new_state); + void (*sta_pre_rcu_remove)(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_sta *sta); void (*sta_rc_update)(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_sta *sta, @@ -2672,22 +2927,24 @@ struct ieee80211_ops { void (*rfkill_poll)(struct ieee80211_hw *hw); void (*set_coverage_class)(struct ieee80211_hw *hw, u8 coverage_class); #ifdef CONFIG_NL80211_TESTMODE - int (*testmode_cmd)(struct ieee80211_hw *hw, void *data, int len); + int (*testmode_cmd)(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + void *data, int len); int (*testmode_dump)(struct ieee80211_hw *hw, struct sk_buff *skb, struct netlink_callback *cb, void *data, int len); #endif - void (*flush)(struct ieee80211_hw *hw, bool drop); + void (*flush)(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + u32 queues, bool drop); void (*channel_switch)(struct ieee80211_hw *hw, struct ieee80211_channel_switch *ch_switch); - int (*napi_poll)(struct ieee80211_hw *hw, int budget); int (*set_antenna)(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant); int (*get_antenna)(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant); int (*remain_on_channel)(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_channel *chan, - int duration); + int duration, + enum ieee80211_roc_type type); int (*cancel_remain_on_channel)(struct ieee80211_hw *hw); int (*set_ringparam)(struct ieee80211_hw *hw, u32 tx, u32 rx); void (*get_ringparam)(struct ieee80211_hw *hw, @@ -2737,6 +2994,10 @@ struct ieee80211_ops { void (*unassign_vif_chanctx)(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_chanctx_conf *ctx); + int (*switch_vif_chanctx)(struct ieee80211_hw *hw, + struct ieee80211_vif_chanctx_switch *vifs, + int n_vifs, + enum ieee80211_chanctx_switch_mode mode); void (*restart_complete)(struct ieee80211_hw *hw); @@ -2745,6 +3006,13 @@ struct ieee80211_ops { struct ieee80211_vif *vif, struct inet6_dev *idev); #endif + void (*channel_switch_beacon)(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct cfg80211_chan_def *chandef); + + int (*join_ibss)(struct ieee80211_hw *hw, struct ieee80211_vif *vif); + void (*leave_ibss)(struct ieee80211_hw *hw, struct ieee80211_vif *vif); + u32 (*get_expected_throughput)(struct ieee80211_sta *sta); }; /** @@ -2802,14 +3070,14 @@ enum ieee80211_tpt_led_trigger_flags { }; #ifdef CONFIG_MAC80211_LEDS -extern char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw); -extern char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw); -extern char *__ieee80211_get_assoc_led_name(struct ieee80211_hw *hw); -extern char *__ieee80211_get_radio_led_name(struct ieee80211_hw *hw); -extern char *__ieee80211_create_tpt_led_trigger( - struct ieee80211_hw *hw, unsigned int flags, - const struct ieee80211_tpt_blink *blink_table, - unsigned int blink_table_len); +char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw); +char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw); +char *__ieee80211_get_assoc_led_name(struct ieee80211_hw *hw); +char *__ieee80211_get_radio_led_name(struct ieee80211_hw *hw); +char *__ieee80211_create_tpt_led_trigger(struct ieee80211_hw *hw, + unsigned int flags, + const struct ieee80211_tpt_blink *blink_table, + unsigned int blink_table_len); #endif /** * ieee80211_get_tx_led_name - get name of TX LED @@ -2955,21 +3223,21 @@ void ieee80211_free_hw(struct ieee80211_hw *hw); */ void ieee80211_restart_hw(struct ieee80211_hw *hw); -/** ieee80211_napi_schedule - schedule NAPI poll - * - * Use this function to schedule NAPI polling on a device. - * - * @hw: the hardware to start polling - */ -void ieee80211_napi_schedule(struct ieee80211_hw *hw); - -/** ieee80211_napi_complete - complete NAPI polling - * - * Use this function to finish NAPI polling on a device. +/** + * ieee80211_napi_add - initialize mac80211 NAPI context + * @hw: the hardware to initialize the NAPI context on + * @napi: the NAPI context to initialize + * @napi_dev: dummy NAPI netdevice, here to not waste the space if the + * driver doesn't use NAPI + * @poll: poll function + * @weight: default weight * - * @hw: the hardware to stop polling + * See also netif_napi_add(). */ -void ieee80211_napi_complete(struct ieee80211_hw *hw); +void ieee80211_napi_add(struct ieee80211_hw *hw, struct napi_struct *napi, + struct net_device *napi_dev, + int (*poll)(struct napi_struct *, int), + int weight); /** * ieee80211_rx - receive frame @@ -2983,7 +3251,8 @@ void ieee80211_napi_complete(struct ieee80211_hw *hw); * This function may not be called in IRQ context. Calls to this function * for a single hardware must be synchronized against each other. Calls to * this function, ieee80211_rx_ni() and ieee80211_rx_irqsafe() may not be - * mixed for a single hardware. + * mixed for a single hardware. Must not run concurrently with + * ieee80211_tx_status() or ieee80211_tx_status_ni(). * * In process context use instead ieee80211_rx_ni(). * @@ -2999,7 +3268,8 @@ void ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb); * (internally defers to a tasklet.) * * Calls to this function, ieee80211_rx() or ieee80211_rx_ni() may not - * be mixed for a single hardware. + * be mixed for a single hardware.Must not run concurrently with + * ieee80211_tx_status() or ieee80211_tx_status_ni(). * * @hw: the hardware this frame came in on * @skb: the buffer to receive, owned by mac80211 after this call @@ -3013,7 +3283,8 @@ void ieee80211_rx_irqsafe(struct ieee80211_hw *hw, struct sk_buff *skb); * (internally disables bottom halves). * * Calls to this function, ieee80211_rx() and ieee80211_rx_irqsafe() may - * not be mixed for a single hardware. + * not be mixed for a single hardware. Must not run concurrently with + * ieee80211_tx_status() or ieee80211_tx_status_ni(). * * @hw: the hardware this frame came in on * @skb: the buffer to receive, owned by mac80211 after this call @@ -3108,6 +3379,25 @@ void ieee80211_sta_set_buffered(struct ieee80211_sta *sta, u8 tid, bool buffered); /** + * ieee80211_get_tx_rates - get the selected transmit rates for a packet + * + * Call this function in a driver with per-packet rate selection support + * to combine the rate info in the packet tx info with the most recent + * rate selection table for the station entry. + * + * @vif: &struct ieee80211_vif pointer from the add_interface callback. + * @sta: the receiver station to which this packet is sent. + * @skb: the frame to be transmitted. + * @dest: buffer for extracted rate/retry information + * @max_rates: maximum number of rates to fetch + */ +void ieee80211_get_tx_rates(struct ieee80211_vif *vif, + struct ieee80211_sta *sta, + struct sk_buff *skb, + struct ieee80211_tx_rate *dest, + int max_rates); + +/** * ieee80211_tx_status - transmit status callback * * Call this function for all transmitted frames after they have been @@ -3117,7 +3407,8 @@ void ieee80211_sta_set_buffered(struct ieee80211_sta *sta, * This function may not be called in IRQ context. Calls to this function * for a single hardware must be synchronized against each other. Calls * to this function, ieee80211_tx_status_ni() and ieee80211_tx_status_irqsafe() - * may not be mixed for a single hardware. + * may not be mixed for a single hardware. Must not run concurrently with + * ieee80211_rx() or ieee80211_rx_ni(). * * @hw: the hardware the frame was transmitted by * @skb: the frame that was transmitted, owned by mac80211 after this call @@ -3171,6 +3462,47 @@ void ieee80211_tx_status_irqsafe(struct ieee80211_hw *hw, */ void ieee80211_report_low_ack(struct ieee80211_sta *sta, u32 num_packets); +#define IEEE80211_MAX_CSA_COUNTERS_NUM 2 + +/** + * struct ieee80211_mutable_offsets - mutable beacon offsets + * @tim_offset: position of TIM element + * @tim_length: size of TIM element + * @csa_counter_offs: array of IEEE80211_MAX_CSA_COUNTERS_NUM offsets + * to CSA counters. This array can contain zero values which + * should be ignored. + */ +struct ieee80211_mutable_offsets { + u16 tim_offset; + u16 tim_length; + + u16 csa_counter_offs[IEEE80211_MAX_CSA_COUNTERS_NUM]; +}; + +/** + * ieee80211_beacon_get_template - beacon template generation function + * @hw: pointer obtained from ieee80211_alloc_hw(). + * @vif: &struct ieee80211_vif pointer from the add_interface callback. + * @offs: &struct ieee80211_mutable_offsets pointer to struct that will + * receive the offsets that may be updated by the driver. + * + * If the driver implements beaconing modes, it must use this function to + * obtain the beacon template. + * + * This function should be used if the beacon frames are generated by the + * device, and then the driver must use the returned beacon as the template + * The driver or the device are responsible to update the DTIM and, when + * applicable, the CSA count. + * + * The driver is responsible for freeing the returned skb. + * + * Return: The beacon template. %NULL on error. + */ +struct sk_buff * +ieee80211_beacon_get_template(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_mutable_offsets *offs); + /** * ieee80211_beacon_get_tim - beacon generation function * @hw: pointer obtained from ieee80211_alloc_hw(). @@ -3182,16 +3514,12 @@ void ieee80211_report_low_ack(struct ieee80211_sta *sta, u32 num_packets); * Set to 0 if invalid (in non-AP modes). * * If the driver implements beaconing modes, it must use this function to - * obtain the beacon frame/template. + * obtain the beacon frame. * * If the beacon frames are generated by the host system (i.e., not in * hardware/firmware), the driver uses this function to get each beacon - * frame from mac80211 -- it is responsible for calling this function - * before the beacon is needed (e.g. based on hardware interrupt). - * - * If the beacon frames are generated by the device, then the driver - * must use the returned beacon as the template and change the TIM IE - * according to the current DTIM parameters/TIM bitmap. + * frame from mac80211 -- it is responsible for calling this function exactly + * once before the beacon is needed (e.g. based on hardware interrupt). * * The driver is responsible for freeing the returned skb. * @@ -3217,6 +3545,39 @@ static inline struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw, } /** + * ieee80211_csa_update_counter - request mac80211 to decrement the csa counter + * @vif: &struct ieee80211_vif pointer from the add_interface callback. + * + * The csa counter should be updated after each beacon transmission. + * This function is called implicitly when + * ieee80211_beacon_get/ieee80211_beacon_get_tim are called, however if the + * beacon frames are generated by the device, the driver should call this + * function after each beacon transmission to sync mac80211's csa counters. + * + * Return: new csa counter value + */ +u8 ieee80211_csa_update_counter(struct ieee80211_vif *vif); + +/** + * ieee80211_csa_finish - notify mac80211 about channel switch + * @vif: &struct ieee80211_vif pointer from the add_interface callback. + * + * After a channel switch announcement was scheduled and the counter in this + * announcement hits 1, this function must be called by the driver to + * notify mac80211 that the channel can be changed. + */ +void ieee80211_csa_finish(struct ieee80211_vif *vif); + +/** + * ieee80211_csa_is_complete - find out if counters reached 1 + * @vif: &struct ieee80211_vif pointer from the add_interface callback. + * + * This function returns whether the channel switch counters reached zero. + */ +bool ieee80211_csa_is_complete(struct ieee80211_vif *vif); + + +/** * ieee80211_proberesp_get - retrieve a Probe Response template * @hw: pointer obtained from ieee80211_alloc_hw(). * @vif: &struct ieee80211_vif pointer from the add_interface callback. @@ -3535,6 +3896,89 @@ void ieee80211_get_key_rx_seq(struct ieee80211_key_conf *keyconf, int tid, struct ieee80211_key_seq *seq); /** + * ieee80211_set_key_tx_seq - set key TX sequence counter + * + * @keyconf: the parameter passed with the set key + * @seq: new sequence data + * + * This function allows a driver to set the current TX IV/PNs for the + * given key. This is useful when resuming from WoWLAN sleep and the + * device may have transmitted frames using the PTK, e.g. replies to + * ARP requests. + * + * Note that this function may only be called when no TX processing + * can be done concurrently. + */ +void ieee80211_set_key_tx_seq(struct ieee80211_key_conf *keyconf, + struct ieee80211_key_seq *seq); + +/** + * ieee80211_set_key_rx_seq - set key RX sequence counter + * + * @keyconf: the parameter passed with the set key + * @tid: The TID, or -1 for the management frame value (CCMP only); + * the value on TID 0 is also used for non-QoS frames. For + * CMAC, only TID 0 is valid. + * @seq: new sequence data + * + * This function allows a driver to set the current RX IV/PNs for the + * given key. This is useful when resuming from WoWLAN sleep and GTK + * rekey may have been done while suspended. It should not be called + * if IV checking is done by the device and not by mac80211. + * + * Note that this function may only be called when no RX processing + * can be done concurrently. + */ +void ieee80211_set_key_rx_seq(struct ieee80211_key_conf *keyconf, + int tid, struct ieee80211_key_seq *seq); + +/** + * ieee80211_remove_key - remove the given key + * @keyconf: the parameter passed with the set key + * + * Remove the given key. If the key was uploaded to the hardware at the + * time this function is called, it is not deleted in the hardware but + * instead assumed to have been removed already. + * + * Note that due to locking considerations this function can (currently) + * only be called during key iteration (ieee80211_iter_keys().) + */ +void ieee80211_remove_key(struct ieee80211_key_conf *keyconf); + +/** + * ieee80211_gtk_rekey_add - add a GTK key from rekeying during WoWLAN + * @vif: the virtual interface to add the key on + * @keyconf: new key data + * + * When GTK rekeying was done while the system was suspended, (a) new + * key(s) will be available. These will be needed by mac80211 for proper + * RX processing, so this function allows setting them. + * + * The function returns the newly allocated key structure, which will + * have similar contents to the passed key configuration but point to + * mac80211-owned memory. In case of errors, the function returns an + * ERR_PTR(), use IS_ERR() etc. + * + * Note that this function assumes the key isn't added to hardware + * acceleration, so no TX will be done with the key. Since it's a GTK + * on managed (station) networks, this is true anyway. If the driver + * calls this function from the resume callback and subsequently uses + * the return code 1 to reconfigure the device, this key will be part + * of the reconfiguration. + * + * Note that the driver should also call ieee80211_set_key_rx_seq() + * for the new key for each TID to set up sequence counters properly. + * + * IMPORTANT: If this replaces a key that is present in the hardware, + * then it will attempt to remove it during this call. In many cases + * this isn't what you want, so call ieee80211_remove_key() first for + * the key that's being replaced. + */ +struct ieee80211_key_conf * +ieee80211_gtk_rekey_add(struct ieee80211_vif *vif, + struct ieee80211_key_conf *keyconf); + +/** * ieee80211_gtk_rekey_notify - notify userspace supplicant of rekeying * @vif: virtual interface the rekeying was done on * @bssid: The BSSID of the AP, for checking association @@ -3683,6 +4127,25 @@ void ieee80211_iterate_active_interfaces_atomic(struct ieee80211_hw *hw, void *data); /** + * ieee80211_iterate_active_interfaces_rtnl - 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 version can only be used while holding the RTNL. + * + * @hw: the hardware struct of which the interfaces should be iterated over + * @iter_flags: iteration flags, see &enum ieee80211_interface_iteration_flags + * @iterator: the iterator function to call, cannot sleep + * @data: first argument of the iterator function + */ +void ieee80211_iterate_active_interfaces_rtnl(struct ieee80211_hw *hw, + u32 iter_flags, + void (*iterator)(void *data, + u8 *mac, + struct ieee80211_vif *vif), + void *data); + +/** * ieee80211_queue_work - add work onto the mac80211 workqueue * * Drivers and mac80211 use this to add work onto the mac80211 workqueue. @@ -3842,14 +4305,17 @@ void ieee80211_sta_block_awake(struct ieee80211_hw *hw, * %IEEE80211_TX_STATUS_EOSP bit and call this function instead. * This applies for PS-Poll as well as uAPSD. * - * Note that there is no non-_irqsafe version right now as - * it wasn't needed, but just like _tx_status() and _rx() - * must not be mixed in irqsafe/non-irqsafe versions, this - * function must not be mixed with those either. Use the - * all irqsafe, or all non-irqsafe, don't mix! If you need - * the non-irqsafe version of this, you need to add it. + * Note that just like with _tx_status() and _rx() drivers must + * not mix calls to irqsafe/non-irqsafe versions, this function + * must not be mixed with those either. Use the all irqsafe, or + * all non-irqsafe, don't mix! + * + * NB: the _irqsafe version of this function doesn't exist, no + * driver needs it right now. Don't call this function if + * you'd need the _irqsafe version, look at the git history + * and restore the _irqsafe version! */ -void ieee80211_sta_eosp_irqsafe(struct ieee80211_sta *pubsta); +void ieee80211_sta_eosp(struct ieee80211_sta *pubsta); /** * ieee80211_iter_keys - iterate keys programmed into the device @@ -4079,7 +4545,7 @@ void ieee80211_send_bar(struct ieee80211_vif *vif, u8 *ra, u16 tid, u16 ssn); * (deprecated; this will be removed once drivers get updated to use * rate_idx_mask) * @rate_idx_mask: user-requested (legacy) rate mask - * @rate_idx_mcs_mask: user-requested MCS rate mask + * @rate_idx_mcs_mask: user-requested MCS rate mask (NULL if not in use) * @bss: whether this frame is sent out in AP or IBSS mode */ struct ieee80211_tx_rate_control { @@ -4091,20 +4557,21 @@ struct ieee80211_tx_rate_control { bool rts, short_preamble; u8 max_rate_idx; u32 rate_idx_mask; - u8 rate_idx_mcs_mask[IEEE80211_HT_MCS_MASK_LEN]; + u8 *rate_idx_mcs_mask; bool bss; }; struct rate_control_ops { - struct module *module; const char *name; void *(*alloc)(struct ieee80211_hw *hw, struct dentry *debugfsdir); void (*free)(void *priv); void *(*alloc_sta)(void *priv, struct ieee80211_sta *sta, gfp_t gfp); void (*rate_init)(void *priv, struct ieee80211_supported_band *sband, + struct cfg80211_chan_def *chandef, struct ieee80211_sta *sta, void *priv_sta); void (*rate_update)(void *priv, struct ieee80211_supported_band *sband, + struct cfg80211_chan_def *chandef, struct ieee80211_sta *sta, void *priv_sta, u32 changed); void (*free_sta)(void *priv, struct ieee80211_sta *sta, @@ -4119,6 +4586,8 @@ struct rate_control_ops { void (*add_sta_debugfs)(void *priv, void *priv_sta, struct dentry *dir); void (*remove_sta_debugfs)(void *priv, void *priv_sta); + + u32 (*get_expected_throughput)(void *priv_sta); }; static inline int rate_supported(struct ieee80211_sta *sta, @@ -4180,37 +4649,57 @@ bool rate_usable_index_exists(struct ieee80211_supported_band *sband, return false; } -int ieee80211_rate_control_register(struct rate_control_ops *ops); -void ieee80211_rate_control_unregister(struct rate_control_ops *ops); +/** + * rate_control_set_rates - pass the sta rate selection to mac80211/driver + * + * When not doing a rate control probe to test rates, rate control should pass + * its rate selection to mac80211. If the driver supports receiving a station + * rate table, it will use it to ensure that frames are always sent based on + * the most recent rate control module decision. + * + * @hw: pointer as obtained from ieee80211_alloc_hw() + * @pubsta: &struct ieee80211_sta pointer to the target destination. + * @rates: new tx rate set to be used for this station. + */ +int rate_control_set_rates(struct ieee80211_hw *hw, + struct ieee80211_sta *pubsta, + struct ieee80211_sta_rates *rates); + +int ieee80211_rate_control_register(const struct rate_control_ops *ops); +void ieee80211_rate_control_unregister(const struct rate_control_ops *ops); static inline bool conf_is_ht20(struct ieee80211_conf *conf) { - return conf->channel_type == NL80211_CHAN_HT20; + return conf->chandef.width == NL80211_CHAN_WIDTH_20; } static inline bool conf_is_ht40_minus(struct ieee80211_conf *conf) { - return conf->channel_type == NL80211_CHAN_HT40MINUS; + return conf->chandef.width == NL80211_CHAN_WIDTH_40 && + conf->chandef.center_freq1 < conf->chandef.chan->center_freq; } static inline bool conf_is_ht40_plus(struct ieee80211_conf *conf) { - return conf->channel_type == NL80211_CHAN_HT40PLUS; + return conf->chandef.width == NL80211_CHAN_WIDTH_40 && + conf->chandef.center_freq1 > conf->chandef.chan->center_freq; } static inline bool conf_is_ht40(struct ieee80211_conf *conf) { - return conf_is_ht40_minus(conf) || conf_is_ht40_plus(conf); + return conf->chandef.width == NL80211_CHAN_WIDTH_40; } static inline bool conf_is_ht(struct ieee80211_conf *conf) { - return conf->channel_type != NL80211_CHAN_NO_HT; + return (conf->chandef.width != NL80211_CHAN_WIDTH_5) && + (conf->chandef.width != NL80211_CHAN_WIDTH_10) && + (conf->chandef.width != NL80211_CHAN_WIDTH_20_NOHT); } static inline enum nl80211_iftype @@ -4265,4 +4754,65 @@ void ieee80211_report_wowlan_wakeup(struct ieee80211_vif *vif, struct cfg80211_wowlan_wakeup *wakeup, gfp_t gfp); +/** + * ieee80211_tx_prepare_skb - prepare an 802.11 skb for transmission + * @hw: pointer as obtained from ieee80211_alloc_hw() + * @vif: virtual interface + * @skb: frame to be sent from within the driver + * @band: the band to transmit on + * @sta: optional pointer to get the station to send the frame to + * + * Note: must be called under RCU lock + */ +bool ieee80211_tx_prepare_skb(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, struct sk_buff *skb, + int band, struct ieee80211_sta **sta); + +/** + * struct ieee80211_noa_data - holds temporary data for tracking P2P NoA state + * + * @next_tsf: TSF timestamp of the next absent state change + * @has_next_tsf: next absent state change event pending + * + * @absent: descriptor bitmask, set if GO is currently absent + * + * private: + * + * @count: count fields from the NoA descriptors + * @desc: adjusted data from the NoA + */ +struct ieee80211_noa_data { + u32 next_tsf; + bool has_next_tsf; + + u8 absent; + + u8 count[IEEE80211_P2P_NOA_DESC_MAX]; + struct { + u32 start; + u32 duration; + u32 interval; + } desc[IEEE80211_P2P_NOA_DESC_MAX]; +}; + +/** + * ieee80211_parse_p2p_noa - initialize NoA tracking data from P2P IE + * + * @attr: P2P NoA IE + * @data: NoA tracking data + * @tsf: current TSF timestamp + * + * Return: number of successfully parsed descriptors + */ +int ieee80211_parse_p2p_noa(const struct ieee80211_p2p_noa_attr *attr, + struct ieee80211_noa_data *data, u32 tsf); + +/** + * ieee80211_update_p2p_noa - get next pending P2P GO absent state change + * + * @data: NoA tracking data + * @tsf: current TSF timestamp + */ +void ieee80211_update_p2p_noa(struct ieee80211_noa_data *data, u32 tsf); + #endif /* MAC80211_H */ |