diff options
Diffstat (limited to 'include/net/mac80211.h')
| -rw-r--r-- | include/net/mac80211.h | 200 |
1 files changed, 154 insertions, 46 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 7c30faff2..e385eb307 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -5,7 +5,7 @@ * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> * Copyright 2007-2010 Johannes Berg <johannes@sipsolutions.net> * Copyright 2013-2014 Intel Mobile Communications GmbH - * Copyright (C) 2015 Intel Deutschland GmbH + * Copyright (C) 2015 - 2016 Intel Deutschland GmbH * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -298,6 +298,7 @@ struct ieee80211_vif_chanctx_switch { * note that this is only called when it changes after the channel * context had been assigned. * @BSS_CHANGED_OCB: OCB join status changed + * @BSS_CHANGED_MU_GROUPS: VHT MU-MIMO group id or user position changed */ enum ieee80211_bss_change { BSS_CHANGED_ASSOC = 1<<0, @@ -323,6 +324,7 @@ enum ieee80211_bss_change { BSS_CHANGED_BEACON_INFO = 1<<20, BSS_CHANGED_BANDWIDTH = 1<<21, BSS_CHANGED_OCB = 1<<22, + BSS_CHANGED_MU_GROUPS = 1<<23, /* when adding here, make sure to change ieee80211_reconfig */ }; @@ -436,6 +438,19 @@ struct ieee80211_event { }; /** + * struct ieee80211_mu_group_data - STA's VHT MU-MIMO group data + * + * This structure describes the group id data of VHT MU-MIMO + * + * @membership: 64 bits array - a bit is set if station is member of the group + * @position: 2 bits per group id indicating the position in the group + */ +struct ieee80211_mu_group_data { + u8 membership[WLAN_MEMBERSHIP_LEN]; + u8 position[WLAN_USER_POSITION_LEN]; +}; + +/** * struct ieee80211_bss_conf - holds the BSS's changing parameters * * This structure keeps information about a BSS (and an association @@ -477,6 +492,7 @@ struct ieee80211_event { * @enable_beacon: whether beaconing should be enabled or not * @chandef: Channel definition for this BSS -- the hardware might be * configured a higher bandwidth than this BSS uses, for example. + * @mu_group: VHT MU-MIMO group membership data * @ht_operation_mode: HT operation mode like in &struct ieee80211_ht_operation. * This field is only valid when the channel is a wide HT/VHT channel. * Note that with TDLS this can be the case (channel is HT, protection must @@ -535,6 +551,7 @@ struct ieee80211_bss_conf { s32 cqm_rssi_thold; u32 cqm_rssi_hyst; struct cfg80211_chan_def chandef; + struct ieee80211_mu_group_data mu_group; __be32 arp_addr_list[IEEE80211_BSS_ARP_ADDR_LIST_LEN]; int arp_addr_cnt; bool qos; @@ -691,12 +708,14 @@ enum mac80211_tx_info_flags { * protocol frame (e.g. EAP) * @IEEE80211_TX_CTRL_PS_RESPONSE: This frame is a response to a poll * frame (PS-Poll or uAPSD). + * @IEEE80211_TX_CTRL_RATE_INJECT: This frame is injected with rate information * * These flags are used in tx_info->control.flags. */ enum mac80211_tx_control_flags { IEEE80211_TX_CTRL_PORT_CTRL_PROTO = BIT(0), IEEE80211_TX_CTRL_PS_RESPONSE = BIT(1), + IEEE80211_TX_CTRL_RATE_INJECT = BIT(2), }; /* @@ -982,6 +1001,8 @@ ieee80211_tx_info_clear_status(struct ieee80211_tx_info *info) * flag indicates that the PN was verified for replay protection. * Note that this flag is also currently only supported when a frame * is also decrypted (ie. @RX_FLAG_DECRYPTED must be set) + * @RX_FLAG_DUP_VALIDATED: The driver should set this flag if it did + * de-duplication by itself. * @RX_FLAG_FAILED_FCS_CRC: Set this flag if the FCS check failed on * the frame. * @RX_FLAG_FAILED_PLCP_CRC: Set this flag if the PCLP check failed on @@ -993,6 +1014,8 @@ ieee80211_tx_info_clear_status(struct ieee80211_tx_info *info) * @RX_FLAG_MACTIME_END: The timestamp passed in the RX status (@mactime * field) is valid and contains the time the last symbol of the MPDU * (including FCS) was received. + * @RX_FLAG_MACTIME_PLCP_START: The timestamp passed in the RX status (@mactime + * field) is valid and contains the time the SYNC preamble was received. * @RX_FLAG_SHORTPRE: Short preamble was used for this frame * @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 @@ -1014,6 +1037,14 @@ ieee80211_tx_info_clear_status(struct ieee80211_tx_info *info) * @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_ONLY_MONITOR: Report frame only to monitor interfaces without + * processing it in any regular way. + * This is useful if drivers offload some frames but still want to report + * them for sniffing purposes. + * @RX_FLAG_SKIP_MONITOR: Process and report frame to all interfaces except + * monitor interfaces. + * This is useful if drivers offload some frames but still want to report + * them for sniffing purposes. * @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 @@ -1033,6 +1064,7 @@ ieee80211_tx_info_clear_status(struct ieee80211_tx_info *info) enum mac80211_rx_flags { RX_FLAG_MMIC_ERROR = BIT(0), RX_FLAG_DECRYPTED = BIT(1), + RX_FLAG_MACTIME_PLCP_START = BIT(2), RX_FLAG_MMIC_STRIPPED = BIT(3), RX_FLAG_IV_STRIPPED = BIT(4), RX_FLAG_FAILED_FCS_CRC = BIT(5), @@ -1046,7 +1078,7 @@ enum mac80211_rx_flags { RX_FLAG_HT_GF = BIT(13), RX_FLAG_AMPDU_DETAILS = BIT(14), RX_FLAG_PN_VALIDATED = BIT(15), - /* bit 16 free */ + RX_FLAG_DUP_VALIDATED = BIT(16), RX_FLAG_AMPDU_LAST_KNOWN = BIT(17), RX_FLAG_AMPDU_IS_LAST = BIT(18), RX_FLAG_AMPDU_DELIM_CRC_ERROR = BIT(19), @@ -1054,6 +1086,8 @@ enum mac80211_rx_flags { RX_FLAG_MACTIME_END = BIT(21), RX_FLAG_VHT = BIT(22), RX_FLAG_LDPC = BIT(23), + RX_FLAG_ONLY_MONITOR = BIT(24), + RX_FLAG_SKIP_MONITOR = BIT(25), RX_FLAG_STBC_MASK = BIT(26) | BIT(27), RX_FLAG_10MHZ = BIT(28), RX_FLAG_5MHZ = BIT(29), @@ -1072,6 +1106,7 @@ enum mac80211_rx_flags { * @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_160MHZ = BIT(1), @@ -1091,6 +1126,8 @@ enum mac80211_rx_vht_flags { * it but can store it and pass it back to the driver for synchronisation * @band: the active band when this frame was received * @freq: frequency the radio was tuned to when receiving this frame, in MHz + * This field must be set for management frames, but isn't strictly needed + * for data (other) frames - for those it only affects radiotap reporting. * @signal: signal strength when receiving this frame, either in dBm, in dB or * unspecified depending on the hardware capabilities flags * @IEEE80211_HW_SIGNAL_* @@ -1347,6 +1384,7 @@ enum ieee80211_vif_flags { * @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. + * @mu_mimo_owner: indicates interface owns MU-MIMO capability * @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 @@ -1373,6 +1411,7 @@ struct ieee80211_vif { u8 addr[ETH_ALEN]; bool p2p; bool csa_active; + bool mu_mimo_owner; u8 cab_queue; u8 hw_queue[IEEE80211_NUM_ACS]; @@ -1486,9 +1525,8 @@ enum ieee80211_key_flags { * wants to be given when a frame is transmitted and needs to be * encrypted in hardware. * @cipher: The key's cipher suite selector. - * @tx_pn: PN used for TX on non-TKIP keys, may be used by the driver - * as well if it needs to do software PN assignment by itself - * (e.g. due to TSO) + * @tx_pn: PN used for TX keys, may be used by the driver as well if it + * needs to do software PN assignment by itself (e.g. due to TSO) * @flags: key flags, see &enum ieee80211_key_flags. * @keyidx: the key index (0-3) * @keylen: key material length @@ -1514,6 +1552,9 @@ struct ieee80211_key_conf { #define IEEE80211_MAX_PN_LEN 16 +#define TKIP_PN_TO_IV16(pn) ((u16)(pn & 0xffff)) +#define TKIP_PN_TO_IV32(pn) ((u32)((pn >> 16) & 0xffffffff)) + /** * struct ieee80211_key_seq - key sequence counter * @@ -1684,6 +1725,18 @@ struct ieee80211_sta_rates { * @tdls_initiator: indicates the STA is an initiator of the TDLS link. Only * valid if the STA is a TDLS peer in the first place. * @mfp: indicates whether the STA uses management frame protection or not. + * @max_amsdu_subframes: indicates the maximal number of MSDUs in a single + * A-MSDU. Taken from the Extended Capabilities element. 0 means + * unlimited. + * @max_amsdu_len: indicates the maximal length of an A-MSDU in bytes. This + * field is always valid for packets with a VHT preamble. For packets + * with a HT preamble, additional limits apply: + * + If the skb is transmitted as part of a BA agreement, the + * A-MSDU maximal size is min(max_amsdu_len, 4065) bytes. + * + If the skb is not part of a BA aggreement, the A-MSDU maximal + * size is min(max_amsdu_len, 7935) bytes. + * Both additional HT limits must be enforced by the low level driver. + * This is defined by the spec (IEEE 802.11-2012 section 8.3.2.2 NOTE 2). * @txq: per-TID data TX queues (if driver uses the TXQ abstraction) */ struct ieee80211_sta { @@ -1702,6 +1755,8 @@ struct ieee80211_sta { bool tdls; bool tdls_initiator; bool mfp; + u8 max_amsdu_subframes; + u16 max_amsdu_len; struct ieee80211_txq *txq[IEEE80211_NUM_TIDS]; @@ -1910,6 +1965,11 @@ struct ieee80211_txq { * by just its MAC address; this prevents, for example, the same station * from connecting to two virtual AP interfaces at the same time. * + * @IEEE80211_HW_SUPPORTS_REORDERING_BUFFER: Hardware (or driver) manages the + * reordering buffer internally, guaranteeing mac80211 receives frames in + * order and does not need to manage its own reorder buffer or BA session + * timeout. + * * @NUM_IEEE80211_HW_FLAGS: number of hardware flags, used for sizing arrays */ enum ieee80211_hw_flags { @@ -1946,6 +2006,7 @@ enum ieee80211_hw_flags { IEEE80211_HW_SUPPORTS_AMSDU_IN_AMPDU, IEEE80211_HW_BEACON_TX_STATUS, IEEE80211_HW_NEEDS_UNIQUE_STA_ADDR, + IEEE80211_HW_SUPPORTS_REORDERING_BUFFER, /* keep last, obviously */ NUM_IEEE80211_HW_FLAGS @@ -2167,7 +2228,7 @@ static inline void SET_IEEE80211_DEV(struct ieee80211_hw *hw, struct device *dev * @hw: the &struct ieee80211_hw to set the MAC address for * @addr: the address to set */ -static inline void SET_IEEE80211_PERM_ADDR(struct ieee80211_hw *hw, u8 *addr) +static inline void SET_IEEE80211_PERM_ADDR(struct ieee80211_hw *hw, const u8 *addr) { memcpy(hw->wiphy->perm_addr, addr, ETH_ALEN); } @@ -2684,6 +2745,33 @@ enum ieee80211_ampdu_mlme_action { }; /** + * struct ieee80211_ampdu_params - AMPDU action parameters + * + * @action: the ampdu action, value from %ieee80211_ampdu_mlme_action. + * @sta: peer of this AMPDU session + * @tid: tid of the BA session + * @ssn: start sequence number of the session. TX/RX_STOP can pass 0. When + * action is set to %IEEE80211_AMPDU_RX_START the driver passes back the + * actual ssn value used to start the session and writes the value here. + * @buf_size: reorder buffer size (number of subframes). Valid only when the + * action is set to %IEEE80211_AMPDU_RX_START or + * %IEEE80211_AMPDU_TX_OPERATIONAL + * @amsdu: indicates the peer's ability to receive A-MSDU within A-MPDU. + * valid when the action is set to %IEEE80211_AMPDU_TX_OPERATIONAL + * @timeout: BA session timeout. Valid only when the action is set to + * %IEEE80211_AMPDU_RX_START + */ +struct ieee80211_ampdu_params { + enum ieee80211_ampdu_mlme_action action; + struct ieee80211_sta *sta; + u16 tid; + u16 ssn; + u8 buf_size; + bool amsdu; + u16 timeout; +}; + +/** * enum ieee80211_frame_release_type - frame release reason * @IEEE80211_FRAME_RELEASE_PSPOLL: frame released for PS-Poll * @IEEE80211_FRAME_RELEASE_UAPSD: frame(s) released due to @@ -3027,13 +3115,9 @@ enum ieee80211_reconfig_type { * @ampdu_action: Perform a certain A-MPDU action * The RA/TID combination determines the destination and TID we want * the ampdu action to be performed for. The action is defined through - * ieee80211_ampdu_mlme_action. Starting sequence number (@ssn) - * is the first frame we expect to perform the action on. Notice - * that TX/RX_STOP can pass NULL for this parameter. - * The @buf_size parameter is only valid when the action is set to - * %IEEE80211_AMPDU_TX_OPERATIONAL and indicates the peer's reorder - * buffer size (number of subframes) for this session -- the driver - * may neither send aggregates containing more subframes than this + * ieee80211_ampdu_mlme_action. + * When the action is set to %IEEE80211_AMPDU_TX_OPERATIONAL the driver + * may neither send aggregates containing more subframes than @buf_size * nor send aggregates in a way that lost frames would exceed the * buffer size. If just limiting the aggregate size, this would be * possible with a buf_size of 8: @@ -3044,9 +3128,6 @@ enum ieee80211_reconfig_type { * buffer size of 8. Correct ways to retransmit #1 would be: * - TX: 1 or 18 or 81 * Even "189" would be wrong since 1 could be lost again. - * The @amsdu parameter is valid when the action is set to - * %IEEE80211_AMPDU_TX_OPERATIONAL and indicates the peer's ability - * to receive A-MSDU within A-MPDU. * * Returns a negative error code on failure. * The callback can sleep. @@ -3388,9 +3469,7 @@ struct ieee80211_ops { int (*tx_last_beacon)(struct ieee80211_hw *hw); int (*ampdu_action)(struct ieee80211_hw *hw, struct ieee80211_vif *vif, - enum ieee80211_ampdu_mlme_action action, - struct ieee80211_sta *sta, u16 tid, u16 *ssn, - u8 buf_size, bool amsdu); + struct ieee80211_ampdu_params *params); int (*get_survey)(struct ieee80211_hw *hw, int idx, struct survey_info *survey); void (*rfkill_poll)(struct ieee80211_hw *hw); @@ -4374,21 +4453,19 @@ void ieee80211_get_tkip_p2k(struct ieee80211_key_conf *keyconf, struct sk_buff *skb, u8 *p2k); /** - * ieee80211_get_key_tx_seq - get key TX sequence counter + * ieee80211_tkip_add_iv - write TKIP IV and Ext. IV to pos * + * @pos: start of crypto header * @keyconf: the parameter passed with the set key - * @seq: buffer to receive the sequence data + * @pn: PN to add * - * This function allows a driver to retrieve the current TX IV/PN - * for the given key. It must not be called if IV generation is - * offloaded to the device. + * Returns: pointer to the octet following IVs (i.e. beginning of + * the packet payload) * - * Note that this function may only be called when no TX processing - * can be done concurrently, for example when queues are stopped - * and the stop has been synchronized. + * This function writes the tkip IV value to pos (which should + * point to the crypto header) */ -void ieee80211_get_key_tx_seq(struct ieee80211_key_conf *keyconf, - struct ieee80211_key_seq *seq); +u8 *ieee80211_tkip_add_iv(u8 *pos, struct ieee80211_key_conf *keyconf, u64 pn); /** * ieee80211_get_key_rx_seq - get key RX sequence counter @@ -4410,23 +4487,6 @@ 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 @@ -5121,6 +5181,24 @@ void ieee80211_stop_rx_ba_session(struct ieee80211_vif *vif, u16 ba_rx_bitmap, const u8 *addr); /** + * ieee80211_mark_rx_ba_filtered_frames - move RX BA window and mark filtered + * @pubsta: station struct + * @tid: the session's TID + * @ssn: starting sequence number of the bitmap, all frames before this are + * assumed to be out of the window after the call + * @filtered: bitmap of filtered frames, BIT(0) is the @ssn entry etc. + * @received_mpdus: number of received mpdus in firmware + * + * This function moves the BA window and releases all frames before @ssn, and + * marks frames marked in the bitmap as having been filtered. Afterwards, it + * checks if any frames in the window starting from @ssn can now be released + * (in case they were only waiting for frames that were filtered.) + */ +void ieee80211_mark_rx_ba_filtered_frames(struct ieee80211_sta *pubsta, u8 tid, + u16 ssn, u64 filtered, + u16 received_mpdus); + +/** * ieee80211_send_bar - send a BlockAckReq frame * * can be used to flush pending frames from the peer's aggregation reorder @@ -5371,6 +5449,21 @@ ieee80211_vif_type_p2p(struct ieee80211_vif *vif) return ieee80211_iftype_p2p(vif->type, vif->p2p); } +/** + * ieee80211_update_mu_groups - set the VHT MU-MIMO groud data + * + * @vif: the specified virtual interface + * @membership: 64 bits array - a bit is set if station is member of the group + * @position: 2 bits per group id indicating the position in the group + * + * Note: This function assumes that the given vif is valid and the position and + * membership data is of the correct size and are in the same byte order as the + * matching GroupId management frame. + * Calls to this function need to be serialized with RX path. + */ +void ieee80211_update_mu_groups(struct ieee80211_vif *vif, + const u8 *membership, const u8 *position); + void ieee80211_enable_rssi_reports(struct ieee80211_vif *vif, int rssi_min_thold, int rssi_max_thold); @@ -5523,4 +5616,19 @@ void ieee80211_unreserve_tid(struct ieee80211_sta *sta, u8 tid); */ struct sk_buff *ieee80211_tx_dequeue(struct ieee80211_hw *hw, struct ieee80211_txq *txq); + +/** + * ieee80211_txq_get_depth - get pending frame/byte count of given txq + * + * The values are not guaranteed to be coherent with regard to each other, i.e. + * txq state can change half-way of this function and the caller may end up + * with "new" frame_cnt and "old" byte_cnt or vice-versa. + * + * @txq: pointer obtained from station or virtual interface + * @frame_cnt: pointer to store frame count + * @byte_cnt: pointer to store byte count + */ +void ieee80211_txq_get_depth(struct ieee80211_txq *txq, + unsigned long *frame_cnt, + unsigned long *byte_cnt); #endif /* MAC80211_H */ |