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-rw-r--r--net/mac80211/sta_info.h210
1 files changed, 135 insertions, 75 deletions
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index ba2796782008..2517ea714dc4 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -3,7 +3,7 @@
* Copyright 2002-2005, Devicescape Software, Inc.
* Copyright 2013-2014 Intel Mobile Communications GmbH
* Copyright(c) 2015-2017 Intel Deutschland GmbH
- * Copyright(c) 2020-2021 Intel Corporation
+ * Copyright(c) 2020-2022 Intel Corporation
*/
#ifndef STA_INFO_H
@@ -135,25 +135,19 @@ enum ieee80211_agg_stop_reason {
#define AIRTIME_USE_TX BIT(0)
#define AIRTIME_USE_RX BIT(1)
-
struct airtime_info {
u64 rx_airtime;
u64 tx_airtime;
- u64 v_t;
- u64 last_scheduled;
- struct list_head list;
+ u32 last_active;
+ s32 deficit;
atomic_t aql_tx_pending; /* Estimated airtime for frames pending */
u32 aql_limit_low;
u32 aql_limit_high;
- u32 weight_reciprocal;
- u16 weight;
};
void ieee80211_sta_update_pending_airtime(struct ieee80211_local *local,
struct sta_info *sta, u8 ac,
u16 tx_airtime, bool tx_completed);
-void ieee80211_register_airtime(struct ieee80211_txq *txq,
- u32 tx_airtime, u32 rx_airtime);
struct sta_info;
@@ -176,6 +170,7 @@ struct sta_info;
* @failed_bar_ssn: ssn of the last failed BAR tx attempt
* @bar_pending: BAR needs to be re-sent
* @amsdu: support A-MSDU withing A-MDPU
+ * @ssn: starting sequence number of the session
*
* This structure's lifetime is managed by RCU, assignments to
* the array holding it must hold the aggregation mutex.
@@ -199,6 +194,7 @@ struct tid_ampdu_tx {
u8 stop_initiator;
bool tx_stop;
u16 buf_size;
+ u16 ssn;
u16 failed_bar_ssn;
bool bar_pending;
@@ -482,6 +478,92 @@ struct ieee80211_fragment_cache {
#define STA_SLOW_THRESHOLD 6000 /* 6 Mbps */
/**
+ * struct link_sta_info - Link STA information
+ * All link specific sta info are stored here for reference. This can be
+ * a single entry for non-MLD STA or multiple entries for MLD STA
+ * @addr: Link MAC address - Can be same as MLD STA mac address and is always
+ * same for non-MLD STA. This is used as key for searching link STA
+ * @link_id: Link ID uniquely identifying the link STA. This is 0 for non-MLD
+ * and set to the corresponding vif LinkId for MLD STA
+ * @link_hash_node: hash node for rhashtable
+ * @sta: Points to the STA info
+ * @gtk: group keys negotiated with this station, if any
+ * @tx_stats: TX statistics
+ * @tx_stats.packets: # of packets transmitted
+ * @tx_stats.bytes: # of bytes in all packets transmitted
+ * @tx_stats.last_rate: last TX rate
+ * @tx_stats.msdu: # of transmitted MSDUs per TID
+ * @rx_stats: RX statistics
+ * @rx_stats_avg: averaged RX statistics
+ * @rx_stats_avg.signal: averaged signal
+ * @rx_stats_avg.chain_signal: averaged per-chain signal
+ * @pcpu_rx_stats: per-CPU RX statistics, assigned only if the driver needs
+ * this (by advertising the USES_RSS hw flag)
+ * @status_stats: TX status statistics
+ * @status_stats.filtered: # of filtered frames
+ * @status_stats.retry_failed: # of frames that failed after retry
+ * @status_stats.retry_count: # of retries attempted
+ * @status_stats.lost_packets: # of lost packets
+ * @status_stats.last_pkt_time: timestamp of last ACKed packet
+ * @status_stats.msdu_retries: # of MSDU retries
+ * @status_stats.msdu_failed: # of failed MSDUs
+ * @status_stats.last_ack: last ack timestamp (jiffies)
+ * @status_stats.last_ack_signal: last ACK signal
+ * @status_stats.ack_signal_filled: last ACK signal validity
+ * @status_stats.avg_ack_signal: average ACK signal
+ * @cur_max_bandwidth: maximum bandwidth to use for TX to the station,
+ * taken from HT/VHT capabilities or VHT operating mode notification
+ * @pub: public (driver visible) link STA data
+ * TODO Move other link params from sta_info as required for MLD operation
+ */
+struct link_sta_info {
+ u8 addr[ETH_ALEN];
+ u8 link_id;
+
+ struct rhlist_head link_hash_node;
+
+ struct sta_info *sta;
+ struct ieee80211_key __rcu *gtk[NUM_DEFAULT_KEYS +
+ NUM_DEFAULT_MGMT_KEYS +
+ NUM_DEFAULT_BEACON_KEYS];
+ struct ieee80211_sta_rx_stats __percpu *pcpu_rx_stats;
+
+ /* Updated from RX path only, no locking requirements */
+ struct ieee80211_sta_rx_stats rx_stats;
+ struct {
+ struct ewma_signal signal;
+ struct ewma_signal chain_signal[IEEE80211_MAX_CHAINS];
+ } rx_stats_avg;
+
+ /* Updated from TX status path only, no locking requirements */
+ struct {
+ unsigned long filtered;
+ unsigned long retry_failed, retry_count;
+ unsigned int lost_packets;
+ unsigned long last_pkt_time;
+ u64 msdu_retries[IEEE80211_NUM_TIDS + 1];
+ u64 msdu_failed[IEEE80211_NUM_TIDS + 1];
+ unsigned long last_ack;
+ s8 last_ack_signal;
+ bool ack_signal_filled;
+ struct ewma_avg_signal avg_ack_signal;
+ } status_stats;
+
+ /* Updated from TX path only, no locking requirements */
+ struct {
+ u64 packets[IEEE80211_NUM_ACS];
+ u64 bytes[IEEE80211_NUM_ACS];
+ struct ieee80211_tx_rate last_rate;
+ struct rate_info last_rate_info;
+ u64 msdu[IEEE80211_NUM_TIDS + 1];
+ } tx_stats;
+
+ enum ieee80211_sta_rx_bandwidth cur_max_bandwidth;
+
+ struct ieee80211_link_sta *pub;
+};
+
+/**
* struct sta_info - STA information
*
* This structure collects information about a station that
@@ -496,7 +578,6 @@ struct ieee80211_fragment_cache {
* @sdata: virtual interface this station belongs to
* @ptk: peer keys negotiated with this station, if any
* @ptk_idx: last installed peer key index
- * @gtk: group keys negotiated with this station, if any
* @rate_ctrl: rate control algorithm reference
* @rate_ctrl_lock: spinlock used to protect rate control data
* (data inside the algorithm, so serializes calls there)
@@ -522,6 +603,7 @@ struct ieee80211_fragment_cache {
* @tid_seq: per-TID sequence numbers for sending to this STA
* @airtime: per-AC struct airtime_info describing airtime statistics for this
* station
+ * @airtime_weight: station weight for airtime fairness calculation purposes
* @ampdu_mlme: A-MPDU state machine state
* @mesh: mesh STA information
* @debugfs_dir: debug filesystem directory dentry
@@ -533,39 +615,26 @@ struct ieee80211_fragment_cache {
* @rcu_head: RCU head used for freeing this station struct
* @cur_max_bandwidth: maximum bandwidth to use for TX to the station,
* taken from HT/VHT capabilities or VHT operating mode notification
- * @known_smps_mode: the smps_mode the client thinks we are in. Relevant for
- * AP only.
- * @cipher_scheme: optional cipher scheme for this station
* @cparams: CoDel parameters for this station.
* @reserved_tid: reserved TID (if any, otherwise IEEE80211_TID_UNRESERVED)
* @fast_tx: TX fastpath information
* @fast_rx: RX fastpath information
* @tdls_chandef: a TDLS peer can have a wider chandef that is compatible to
* the BSS one.
- * @tx_stats: TX statistics
- * @tx_stats.packets: # of packets transmitted
- * @tx_stats.bytes: # of bytes in all packets transmitted
- * @tx_stats.last_rate: last TX rate
- * @tx_stats.msdu: # of transmitted MSDUs per TID
- * @rx_stats: RX statistics
- * @rx_stats_avg: averaged RX statistics
- * @rx_stats_avg.signal: averaged signal
- * @rx_stats_avg.chain_signal: averaged per-chain signal
- * @pcpu_rx_stats: per-CPU RX statistics, assigned only if the driver needs
- * this (by advertising the USES_RSS hw flag)
- * @status_stats: TX status statistics
- * @status_stats.filtered: # of filtered frames
- * @status_stats.retry_failed: # of frames that failed after retry
- * @status_stats.retry_count: # of retries attempted
- * @status_stats.lost_packets: # of lost packets
- * @status_stats.last_pkt_time: timestamp of last ACKed packet
- * @status_stats.msdu_retries: # of MSDU retries
- * @status_stats.msdu_failed: # of failed MSDUs
- * @status_stats.last_ack: last ack timestamp (jiffies)
- * @status_stats.last_ack_signal: last ACK signal
- * @status_stats.ack_signal_filled: last ACK signal validity
- * @status_stats.avg_ack_signal: average ACK signal
* @frags: fragment cache
+ * @cur: storage for aggregation data
+ * &struct ieee80211_sta points either here or to deflink.agg.
+ * @deflink: This is the default link STA information, for non MLO STA all link
+ * specific STA information is accessed through @deflink or through
+ * link[0] which points to address of @deflink. For MLO Link STA
+ * the first added link STA will point to deflink.
+ * @link: reference to Link Sta entries. For Non MLO STA, except 1st link,
+ * i.e link[0] all links would be assigned to NULL by default and
+ * would access link information via @deflink or link[0]. For MLO
+ * STA, first link STA being added will point its link pointer to
+ * @deflink address and remaining would be allocated and the address
+ * would be assigned to link[link_id] where link_id is the id assigned
+ * by the AP.
*/
struct sta_info {
/* General information, mostly static */
@@ -575,9 +644,6 @@ struct sta_info {
u8 addr[ETH_ALEN];
struct ieee80211_local *local;
struct ieee80211_sub_if_data *sdata;
- struct ieee80211_key __rcu *gtk[NUM_DEFAULT_KEYS +
- NUM_DEFAULT_MGMT_KEYS +
- NUM_DEFAULT_BEACON_KEYS];
struct ieee80211_key __rcu *ptk[NUM_DEFAULT_KEYS];
u8 ptk_idx;
struct rate_control_ref *rate_ctrl;
@@ -587,7 +653,6 @@ struct sta_info {
struct ieee80211_fast_tx __rcu *fast_tx;
struct ieee80211_fast_rx __rcu *fast_rx;
- struct ieee80211_sta_rx_stats __percpu *pcpu_rx_stats;
#ifdef CONFIG_MAC80211_MESH
struct mesh_sta *mesh;
@@ -617,41 +682,13 @@ struct sta_info {
u64 assoc_at;
long last_connected;
- /* Updated from RX path only, no locking requirements */
- struct ieee80211_sta_rx_stats rx_stats;
- struct {
- struct ewma_signal signal;
- struct ewma_signal chain_signal[IEEE80211_MAX_CHAINS];
- } rx_stats_avg;
-
/* Plus 1 for non-QoS frames */
__le16 last_seq_ctrl[IEEE80211_NUM_TIDS + 1];
- /* Updated from TX status path only, no locking requirements */
- struct {
- unsigned long filtered;
- unsigned long retry_failed, retry_count;
- unsigned int lost_packets;
- unsigned long last_pkt_time;
- u64 msdu_retries[IEEE80211_NUM_TIDS + 1];
- u64 msdu_failed[IEEE80211_NUM_TIDS + 1];
- unsigned long last_ack;
- s8 last_ack_signal;
- bool ack_signal_filled;
- struct ewma_avg_signal avg_ack_signal;
- } status_stats;
-
- /* Updated from TX path only, no locking requirements */
- struct {
- u64 packets[IEEE80211_NUM_ACS];
- u64 bytes[IEEE80211_NUM_ACS];
- struct ieee80211_tx_rate last_rate;
- struct rate_info last_rate_info;
- u64 msdu[IEEE80211_NUM_TIDS + 1];
- } tx_stats;
u16 tid_seq[IEEE80211_QOS_CTL_TID_MASK + 1];
struct airtime_info airtime[IEEE80211_NUM_ACS];
+ u16 airtime_weight;
/*
* Aggregation information, locked with lock.
@@ -662,11 +699,6 @@ struct sta_info {
struct dentry *debugfs_dir;
#endif
- enum ieee80211_sta_rx_bandwidth cur_max_bandwidth;
-
- enum ieee80211_smps_mode known_smps_mode;
- const struct ieee80211_cipher_scheme *cipher_scheme;
-
struct codel_params cparams;
u8 reserved_tid;
@@ -675,6 +707,10 @@ struct sta_info {
struct ieee80211_fragment_cache frags;
+ struct ieee80211_sta_aggregates cur;
+ struct link_sta_info deflink;
+ struct link_sta_info __rcu *link[IEEE80211_MLD_MAX_NUM_LINKS];
+
/* keep last! */
struct ieee80211_sta sta;
};
@@ -786,6 +822,17 @@ struct sta_info *sta_info_get_by_addrs(struct ieee80211_local *local,
rhl_for_each_entry_rcu(_sta, _tmp, \
sta_info_hash_lookup(local, _addr), hash_node)
+struct rhlist_head *link_sta_info_hash_lookup(struct ieee80211_local *local,
+ const u8 *addr);
+
+#define for_each_link_sta_info(local, _addr, _sta, _tmp) \
+ rhl_for_each_entry_rcu(_sta, _tmp, \
+ link_sta_info_hash_lookup(local, _addr), \
+ link_hash_node)
+
+struct link_sta_info *
+link_sta_info_get_bss(struct ieee80211_sub_if_data *sdata, const u8 *addr);
+
/*
* Get STA info by index, BROKEN!
*/
@@ -797,6 +844,11 @@ struct sta_info *sta_info_get_by_idx(struct ieee80211_sub_if_data *sdata,
*/
struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
const u8 *addr, gfp_t gfp);
+struct sta_info *sta_info_alloc_with_link(struct ieee80211_sub_if_data *sdata,
+ const u8 *mld_addr,
+ unsigned int link_id,
+ const u8 *link_addr,
+ gfp_t gfp);
void sta_info_free(struct ieee80211_local *local, struct sta_info *sta);
@@ -854,7 +906,11 @@ u32 sta_get_expected_throughput(struct sta_info *sta);
void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata,
unsigned long exp_time);
-u8 sta_info_tx_streams(struct sta_info *sta);
+
+int ieee80211_sta_allocate_link(struct sta_info *sta, unsigned int link_id);
+void ieee80211_sta_free_link(struct sta_info *sta, unsigned int link_id);
+int ieee80211_sta_activate_link(struct sta_info *sta, unsigned int link_id);
+void ieee80211_sta_remove_link(struct sta_info *sta, unsigned int link_id);
void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta);
void ieee80211_sta_ps_deliver_poll_response(struct sta_info *sta);
@@ -862,6 +918,10 @@ void ieee80211_sta_ps_deliver_uapsd(struct sta_info *sta);
unsigned long ieee80211_sta_last_active(struct sta_info *sta);
+void ieee80211_sta_set_max_amsdu_subframes(struct sta_info *sta,
+ const u8 *ext_capab,
+ unsigned int ext_capab_len);
+
enum sta_stats_type {
STA_STATS_RATE_TYPE_INVALID = 0,
STA_STATS_RATE_TYPE_LEGACY,
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.