8318d78a44
This patch creates new cfg80211 wiphy API for channel and bitrate registration and converts mac80211 and drivers to the new API. The old mac80211 API is completely ripped out. All drivers (except ath5k) are updated to the new API, in many cases I expect that optimisations can be done. Along with the regulatory code I've also ripped out the IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED flag, I believe it to be unnecessary if the hardware simply gives us whatever channels it wants to support and we then enable/disable them as required, which is pretty much required for travelling. Additionally, the patch adds proper "basic" rate handling for STA mode interface, AP mode interface will have to have new API added to allow userspace to set the basic rate set, currently it'll be empty... However, the basic rate handling will need to be moved to the BSS conf stuff. I do expect there to be bugs in this, especially wrt. transmit power handling where I'm basically clueless about how it should work. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
238 lines
7.4 KiB
C
238 lines
7.4 KiB
C
/*
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* Copyright 2002-2005, Devicescape Software, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef STA_INFO_H
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#define STA_INFO_H
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#include <linux/list.h>
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#include <linux/types.h>
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#include <linux/if_ether.h>
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#include <linux/kref.h>
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#include "ieee80211_key.h"
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/* Stations flags (struct sta_info::flags) */
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#define WLAN_STA_AUTH BIT(0)
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#define WLAN_STA_ASSOC BIT(1)
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#define WLAN_STA_PS BIT(2)
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#define WLAN_STA_TIM BIT(3) /* TIM bit is on for PS stations */
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#define WLAN_STA_PERM BIT(4) /* permanent; do not remove entry on expiration */
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#define WLAN_STA_AUTHORIZED BIT(5) /* If 802.1X is used, this flag is
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* controlling whether STA is authorized to
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* send and receive non-IEEE 802.1X frames
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*/
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#define WLAN_STA_SHORT_PREAMBLE BIT(7)
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/* whether this is an AP that we are associated with as a client */
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#define WLAN_STA_ASSOC_AP BIT(8)
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#define WLAN_STA_WME BIT(9)
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#define WLAN_STA_WDS BIT(27)
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#define STA_TID_NUM 16
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#define ADDBA_RESP_INTERVAL HZ
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#define HT_AGG_MAX_RETRIES (0x3)
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#define HT_AGG_STATE_INITIATOR_SHIFT (4)
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#define HT_ADDBA_REQUESTED_MSK BIT(0)
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#define HT_ADDBA_DRV_READY_MSK BIT(1)
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#define HT_ADDBA_RECEIVED_MSK BIT(2)
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#define HT_AGG_STATE_REQ_STOP_BA_MSK BIT(3)
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#define HT_AGG_STATE_INITIATOR_MSK BIT(HT_AGG_STATE_INITIATOR_SHIFT)
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#define HT_AGG_STATE_IDLE (0x0)
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#define HT_AGG_STATE_OPERATIONAL (HT_ADDBA_REQUESTED_MSK | \
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HT_ADDBA_DRV_READY_MSK | \
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HT_ADDBA_RECEIVED_MSK)
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/**
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* struct tid_ampdu_tx - TID aggregation information (Tx).
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*
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* @state: TID's state in session state machine.
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* @dialog_token: dialog token for aggregation session
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* @ssn: Starting Sequence Number expected to be aggregated.
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* @addba_resp_timer: timer for peer's response to addba request
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* @addba_req_num: number of times addBA request has been sent.
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*/
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struct tid_ampdu_tx {
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u8 state;
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u8 dialog_token;
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u16 ssn;
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struct timer_list addba_resp_timer;
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u8 addba_req_num;
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};
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/**
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* struct tid_ampdu_rx - TID aggregation information (Rx).
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*
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* @state: TID's state in session state machine.
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* @dialog_token: dialog token for aggregation session
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* @ssn: Starting Sequence Number expected to be aggregated.
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* @buf_size: buffer size for incoming A-MPDUs
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* @timeout: reset timer value.
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* @head_seq_num: head sequence number in reordering buffer.
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* @stored_mpdu_num: number of MPDUs in reordering buffer
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* @reorder_buf: buffer to reorder incoming aggregated MPDUs
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* @session_timer: check if peer keeps Tx-ing on the TID (by timeout value)
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*/
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struct tid_ampdu_rx {
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u8 state;
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u8 dialog_token;
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u16 ssn;
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u16 buf_size;
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u16 timeout;
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u16 head_seq_num;
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u16 stored_mpdu_num;
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struct sk_buff **reorder_buf;
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struct timer_list session_timer;
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};
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/**
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* struct sta_ampdu_mlme - STA aggregation information.
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*
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* @tid_rx: aggregation info for Rx per TID
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* @tid_tx: aggregation info for Tx per TID
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* @ampdu_rx: for locking sections in aggregation Rx flow
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* @ampdu_tx: for locking sectionsi in aggregation Tx flow
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* @dialog_token_allocator: dialog token enumerator for each new session;
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*/
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struct sta_ampdu_mlme {
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struct tid_ampdu_rx tid_rx[STA_TID_NUM];
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struct tid_ampdu_tx tid_tx[STA_TID_NUM];
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spinlock_t ampdu_rx;
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spinlock_t ampdu_tx;
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u8 dialog_token_allocator;
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};
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struct sta_info {
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struct kref kref;
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struct list_head list;
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struct sta_info *hnext; /* next entry in hash table list */
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struct ieee80211_local *local;
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u8 addr[ETH_ALEN];
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u16 aid; /* STA's unique AID (1..2007), 0 = not yet assigned */
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u32 flags; /* WLAN_STA_ */
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struct sk_buff_head ps_tx_buf; /* buffer of TX frames for station in
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* power saving state */
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int pspoll; /* whether STA has send a PS Poll frame */
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struct sk_buff_head tx_filtered; /* buffer of TX frames that were
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* already given to low-level driver,
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* but were filtered */
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int clear_dst_mask;
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unsigned long rx_packets, tx_packets; /* number of RX/TX MSDUs */
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unsigned long rx_bytes, tx_bytes;
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unsigned long tx_retry_failed, tx_retry_count;
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unsigned long tx_filtered_count;
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unsigned int wep_weak_iv_count; /* number of RX frames with weak IV */
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unsigned long last_rx;
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/* bitmap of supported rates per band */
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u64 supp_rates[IEEE80211_NUM_BANDS];
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int txrate_idx;
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/* last rates used to send a frame to this STA */
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int last_txrate_idx, last_nonerp_txrate_idx;
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struct net_device *dev; /* which net device is this station associated
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* to */
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struct ieee80211_key *key;
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u32 tx_num_consecutive_failures;
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u32 tx_num_mpdu_ok;
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u32 tx_num_mpdu_fail;
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struct rate_control_ref *rate_ctrl;
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void *rate_ctrl_priv;
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/* last received seq/frag number from this STA (per RX queue) */
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__le16 last_seq_ctrl[NUM_RX_DATA_QUEUES];
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unsigned long num_duplicates; /* number of duplicate frames received
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* from this STA */
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unsigned long tx_fragments; /* number of transmitted MPDUs */
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unsigned long rx_fragments; /* number of received MPDUs */
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unsigned long rx_dropped; /* number of dropped MPDUs from this STA */
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int last_rssi; /* RSSI of last received frame from this STA */
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int last_signal; /* signal of last received frame from this STA */
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int last_noise; /* noise of last received frame from this STA */
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int last_ack_rssi[3]; /* RSSI of last received ACKs from this STA */
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unsigned long last_ack;
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int channel_use;
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int channel_use_raw;
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#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
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unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
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unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
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#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
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u16 listen_interval;
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struct ieee80211_ht_info ht_info; /* 802.11n HT capabilities
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of this STA */
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struct sta_ampdu_mlme ampdu_mlme;
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u8 timer_to_tid[STA_TID_NUM]; /* convert timer id to tid */
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u8 tid_to_tx_q[STA_TID_NUM]; /* map tid to tx queue */
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#ifdef CONFIG_MAC80211_DEBUGFS
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struct sta_info_debugfsdentries {
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struct dentry *dir;
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struct dentry *flags;
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struct dentry *num_ps_buf_frames;
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struct dentry *last_ack_rssi;
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struct dentry *last_ack_ms;
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struct dentry *inactive_ms;
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struct dentry *last_seq_ctrl;
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#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
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struct dentry *wme_rx_queue;
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struct dentry *wme_tx_queue;
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#endif
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struct dentry *agg_status;
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} debugfs;
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#endif
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};
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/* Maximum number of concurrently registered stations */
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#define MAX_STA_COUNT 2007
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#define STA_HASH_SIZE 256
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#define STA_HASH(sta) (sta[5])
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/* Maximum number of frames to buffer per power saving station */
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#define STA_MAX_TX_BUFFER 128
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/* Minimum buffered frame expiry time. If STA uses listen interval that is
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* smaller than this value, the minimum value here is used instead. */
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#define STA_TX_BUFFER_EXPIRE (10 * HZ)
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/* How often station data is cleaned up (e.g., expiration of buffered frames)
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*/
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#define STA_INFO_CLEANUP_INTERVAL (10 * HZ)
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static inline void __sta_info_get(struct sta_info *sta)
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{
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kref_get(&sta->kref);
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}
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struct sta_info * sta_info_get(struct ieee80211_local *local, u8 *addr);
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void sta_info_put(struct sta_info *sta);
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struct sta_info * sta_info_add(struct ieee80211_local *local,
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struct net_device *dev, u8 *addr, gfp_t gfp);
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void sta_info_remove(struct sta_info *sta);
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void sta_info_free(struct sta_info *sta);
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void sta_info_init(struct ieee80211_local *local);
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int sta_info_start(struct ieee80211_local *local);
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void sta_info_stop(struct ieee80211_local *local);
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void sta_info_remove_aid_ptr(struct sta_info *sta);
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void sta_info_flush(struct ieee80211_local *local, struct net_device *dev);
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#endif /* STA_INFO_H */
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