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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-09-08 01:01:14 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-09-08 01:01:14 -0300
commite5fd91f1ef340da553f7a79da9540c3db711c937 (patch)
treeb11842027dc6641da63f4bcc524f8678263304a3 /net/mac80211/sta_info.h
parent2a9b0348e685a63d97486f6749622b61e9e3292f (diff)
Linux-libre 4.2-gnu
Diffstat (limited to 'net/mac80211/sta_info.h')
-rw-r--r--net/mac80211/sta_info.h44
1 files changed, 41 insertions, 3 deletions
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 5c164fb3f..226f8ca47 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -241,6 +241,34 @@ struct sta_ampdu_mlme {
/* Value to indicate no TID reservation */
#define IEEE80211_TID_UNRESERVED 0xff
+#define IEEE80211_FAST_XMIT_MAX_IV 18
+
+/**
+ * struct ieee80211_fast_tx - TX fastpath information
+ * @key: key to use for hw crypto
+ * @hdr: the 802.11 header to put with the frame
+ * @hdr_len: actual 802.11 header length
+ * @sa_offs: offset of the SA
+ * @da_offs: offset of the DA
+ * @pn_offs: offset where to put PN for crypto (or 0 if not needed)
+ * @band: band this will be transmitted on, for tx_info
+ * @rcu_head: RCU head to free this struct
+ *
+ * This struct is small enough so that the common case (maximum crypto
+ * header length of 8 like for CCMP/GCMP) fits into a single 64-byte
+ * cache line.
+ */
+struct ieee80211_fast_tx {
+ struct ieee80211_key *key;
+ u8 hdr_len;
+ u8 sa_offs, da_offs, pn_offs;
+ u8 band;
+ u8 hdr[30 + 2 + IEEE80211_FAST_XMIT_MAX_IV +
+ sizeof(rfc1042_header)];
+
+ struct rcu_head rcu_head;
+};
+
/**
* struct sta_info - STA information
*
@@ -257,6 +285,8 @@ struct sta_ampdu_mlme {
* @gtk: group keys negotiated with this station, if any
* @gtk_idx: last installed group key index
* @rate_ctrl: rate control algorithm reference
+ * @rate_ctrl_lock: spinlock used to protect rate control data
+ * (data inside the algorithm, so serializes calls there)
* @rate_ctrl_priv: rate control private per-STA pointer
* @last_tx_rate: rate used for last transmit, to report to userspace as
* "the" transmit rate
@@ -295,10 +325,10 @@ struct sta_ampdu_mlme {
* @fail_avg: moving percentage of failed MSDUs
* @tx_packets: number of RX/TX MSDUs
* @tx_bytes: number of bytes transmitted to this STA
- * @tx_fragments: number of transmitted MPDUs
* @tid_seq: per-TID sequence numbers for sending to this STA
* @ampdu_mlme: A-MPDU state machine state
* @timer_to_tid: identity mapping to ID timers
+ * @plink_lock: serialize access to plink fields
* @llid: Local link ID
* @plid: Peer link ID
* @reason: Cancel reason on PLINK_HOLDING state
@@ -338,6 +368,9 @@ struct sta_ampdu_mlme {
* using IEEE80211_NUM_TID entry for non-QoS frames
* @rx_msdu: MSDUs received from this station, using IEEE80211_NUM_TID
* entry for non-QoS frames
+ * @fast_tx: TX fastpath information
+ * @processed_beacon: set to true after peer rates and capabilities are
+ * processed
*/
struct sta_info {
/* General information, mostly static */
@@ -352,8 +385,11 @@ struct sta_info {
u8 ptk_idx;
struct rate_control_ref *rate_ctrl;
void *rate_ctrl_priv;
+ spinlock_t rate_ctrl_lock;
spinlock_t lock;
+ struct ieee80211_fast_tx __rcu *fast_tx;
+
struct work_struct drv_deliver_wk;
u16 listen_interval;
@@ -400,7 +436,6 @@ struct sta_info {
unsigned int fail_avg;
/* Updated from TX path only, no locking requirements */
- u32 tx_fragments;
u64 tx_packets[IEEE80211_NUM_ACS];
u64 tx_bytes[IEEE80211_NUM_ACS];
struct ieee80211_tx_rate last_tx_rate;
@@ -422,9 +457,10 @@ struct sta_info {
#ifdef CONFIG_MAC80211_MESH
/*
- * Mesh peer link attributes
+ * Mesh peer link attributes, protected by plink_lock.
* TODO: move to a sub-structure that is referenced with pointer?
*/
+ spinlock_t plink_lock;
u16 llid;
u16 plid;
u16 reason;
@@ -432,12 +468,14 @@ struct sta_info {
enum nl80211_plink_state plink_state;
u32 plink_timeout;
struct timer_list plink_timer;
+
s64 t_offset;
s64 t_offset_setpoint;
/* mesh power save */
enum nl80211_mesh_power_mode local_pm;
enum nl80211_mesh_power_mode peer_pm;
enum nl80211_mesh_power_mode nonpeer_pm;
+ bool processed_beacon;
#endif
#ifdef CONFIG_MAC80211_DEBUGFS