diff options
Diffstat (limited to 'include/net/mac80211.h')
| -rw-r--r-- | include/net/mac80211.h | 114 |
1 files changed, 113 insertions, 1 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 82558c8decf8..00b7204708bd 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -144,6 +144,41 @@ struct ieee80211_low_level_stats { }; /** + * enum ieee80211_chanctx_change - change flag for channel context + * @IEEE80211_CHANCTX_CHANGE_CHANNEL_TYPE: The channel type was changed + * @IEEE80211_CHANCTX_CHANGE_RX_CHAINS: The number of RX chains changed + */ +enum ieee80211_chanctx_change { + IEEE80211_CHANCTX_CHANGE_CHANNEL_TYPE = BIT(0), + IEEE80211_CHANCTX_CHANGE_RX_CHAINS = BIT(1), +}; + +/** + * struct ieee80211_chanctx_conf - channel context that vifs may be tuned to + * + * This is the driver-visible part. The ieee80211_chanctx + * that contains it is visible in mac80211 only. + * + * @channel: the channel to tune to + * @channel_type: the channel (HT) type + * @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 + * after RTS/CTS handshake to receive SMPS MIMO transmissions; + * this will always be >= @rx_chains_always. + * @drv_priv: data area for driver use, will always be aligned to + * sizeof(void *), size is determined in hw information. + */ +struct ieee80211_chanctx_conf { + struct ieee80211_channel *channel; + enum nl80211_channel_type channel_type; + + u8 rx_chains_static, rx_chains_dynamic; + + u8 drv_priv[0] __attribute__((__aligned__(sizeof(void *)))); +}; + +/** * enum ieee80211_bss_change - BSS change notification flags * * These flags are used with the bss_info_changed() callback @@ -223,6 +258,7 @@ enum ieee80211_rssi_event { * @assoc: association status * @ibss_joined: indicates whether this station is part of an IBSS * or not + * @ibss_creator: indicates if a new IBSS network is being created * @aid: association ID number, valid only when @assoc is true * @use_cts_prot: use CTS protection * @use_short_preamble: use 802.11b short preamble; @@ -278,6 +314,7 @@ struct ieee80211_bss_conf { const u8 *bssid; /* association related data */ bool assoc, ibss_joined; + bool ibss_creator; u16 aid; /* erp related data */ bool use_cts_prot; @@ -794,6 +831,8 @@ enum ieee80211_conf_flags { * @IEEE80211_CONF_CHANGE_RETRY_LIMITS: retry limits changed * @IEEE80211_CONF_CHANGE_IDLE: Idle flag changed * @IEEE80211_CONF_CHANGE_SMPS: Spatial multiplexing powersave mode changed + * Note that this is only valid if channel contexts are not used, + * otherwise each channel context has the number of chains listed. */ enum ieee80211_conf_changed { IEEE80211_CONF_CHANGE_SMPS = BIT(1), @@ -859,7 +898,9 @@ enum ieee80211_smps_mode { * * @smps_mode: spatial multiplexing powersave mode; note that * %IEEE80211_SMPS_STATIC is used when the device is not - * configured for an HT channel + * configured for an HT channel. + * Note that this is only valid if channel contexts are not used, + * otherwise each channel context has the number of chains listed. */ struct ieee80211_conf { u32 flags; @@ -931,6 +972,11 @@ enum ieee80211_vif_flags { * at runtime, mac80211 will never touch this field * @hw_queue: hardware queue for each AC * @cab_queue: content-after-beacon (DTIM beacon really) queue, AP mode only + * @chanctx_conf: The channel context this interface is assigned to, or %NULL + * when it is not assigned. This pointer is RCU-protected due to the TX + * 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. * @drv_priv: data area for driver use, will always be aligned to * sizeof(void *). */ @@ -943,6 +989,8 @@ struct ieee80211_vif { u8 cab_queue; u8 hw_queue[IEEE80211_NUM_ACS]; + struct ieee80211_chanctx_conf __rcu *chanctx_conf; + u32 driver_flags; /* must be last */ @@ -1076,6 +1124,8 @@ enum ieee80211_sta_state { * @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. * @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. @@ -1088,6 +1138,7 @@ struct ieee80211_sta { u8 addr[ETH_ALEN]; u16 aid; struct ieee80211_sta_ht_cap ht_cap; + struct ieee80211_sta_vht_cap vht_cap; bool wme; u8 uapsd_queues; u8 max_sp; @@ -1325,6 +1376,8 @@ enum ieee80211_hw_flags { * within &struct ieee80211_vif. * @sta_data_size: size (in bytes) of the drv_priv data area * within &struct ieee80211_sta. + * @chanctx_data_size: size (in bytes) of the drv_priv data area + * within &struct ieee80211_chanctx_conf. * * @max_rates: maximum number of alternate rate retry stages the hw * can handle. @@ -1369,6 +1422,7 @@ struct ieee80211_hw { int channel_change_time; int vif_data_size; int sta_data_size; + int chanctx_data_size; int napi_weight; u16 queues; u16 max_listen_interval; @@ -2317,6 +2371,16 @@ enum ieee80211_rate_control_changed { * The callback will be called before each transmission and upon return * mac80211 will transmit the frame right away. * The callback is optional and can (should!) sleep. + * + * @add_chanctx: Notifies device driver about new channel context creation. + * @remove_chanctx: Notifies device driver about channel context destruction. + * @change_chanctx: Notifies device driver about channel context changes that + * may happen when combining different virtual interfaces on the same + * channel context with different settings + * @assign_vif_chanctx: Notifies device driver about channel context being bound + * to vif. Possible use is for hw queue remapping. + * @unassign_vif_chanctx: Notifies device driver about channel context being + * unbound from vif. */ struct ieee80211_ops { void (*tx)(struct ieee80211_hw *hw, @@ -2461,6 +2525,20 @@ struct ieee80211_ops { void (*mgd_prepare_tx)(struct ieee80211_hw *hw, struct ieee80211_vif *vif); + + int (*add_chanctx)(struct ieee80211_hw *hw, + struct ieee80211_chanctx_conf *ctx); + void (*remove_chanctx)(struct ieee80211_hw *hw, + struct ieee80211_chanctx_conf *ctx); + void (*change_chanctx)(struct ieee80211_hw *hw, + struct ieee80211_chanctx_conf *ctx, + u32 changed); + int (*assign_vif_chanctx)(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_chanctx_conf *ctx); + void (*unassign_vif_chanctx)(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_chanctx_conf *ctx); }; /** @@ -3145,6 +3223,19 @@ void ieee80211_get_tkip_p2k(struct ieee80211_key_conf *keyconf, struct sk_buff *skb, u8 *p2k); /** + * ieee80211_aes_cmac_calculate_k1_k2 - calculate the AES-CMAC sub keys + * + * This function computes the two AES-CMAC sub-keys, based on the + * previously installed master key. + * + * @keyconf: the parameter passed with the set key + * @k1: a buffer to be filled with the 1st sub-key + * @k2: a buffer to be filled with the 2nd sub-key + */ +void ieee80211_aes_cmac_calculate_k1_k2(struct ieee80211_key_conf *keyconf, + u8 *k1, u8 *k2); + +/** * struct ieee80211_key_seq - key sequence counter * * @tkip: TKIP data, containing IV32 and IV16 in host byte order @@ -3524,6 +3615,27 @@ void ieee80211_iter_keys(struct ieee80211_hw *hw, void *iter_data); /** + * ieee80211_iter_chan_contexts_atomic - iterate channel contexts + * @hw: pointre obtained from ieee80211_alloc_hw(). + * @iter: iterator function + * @iter_data: data passed to iterator function + * + * Iterate all active channel contexts. This function is atomic and + * doesn't acquire any locks internally that might be held in other + * places while calling into the driver. + * + * The iterator will not find a context that's being added (during + * the driver callback to add it) but will find it while it's being + * removed. + */ +void ieee80211_iter_chan_contexts_atomic( + struct ieee80211_hw *hw, + void (*iter)(struct ieee80211_hw *hw, + struct ieee80211_chanctx_conf *chanctx_conf, + void *data), + void *iter_data); + +/** * ieee80211_ap_probereq_get - retrieve a Probe Request template * @hw: pointer obtained from ieee80211_alloc_hw(). * @vif: &struct ieee80211_vif pointer from the add_interface callback. |