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mac80211: introduce IEEE80211_NUM_TIDS and use it

Browse Source 
Introduce IEEE80211_NUM_TIDS in the generic 802.11
header file and use it in place of STA_TID_NUM and
NUM_RX_DATA_QUEUES which are both really the number
of TIDs.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2012-11-14 23:22:21 +01:00
parent 0f92732344
commit 5a306f5887
11 changed files with 43 additions and 44 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
include/linux/ieee80211.h
View File

@ -131,6 +131,8 @@
#define IEEE80211_MAX_MESH_ID_LEN 32
#define IEEE80211_NUM_TIDS 16
#define IEEE80211_QOS_CTL_LEN 2
/* 1d tag mask */
#define IEEE80211_QOS_CTL_TAG1D_MASK 0x0007

2
net/mac80211/agg-rx.c
View File

@ -118,7 +118,7 @@ void ieee80211_stop_rx_ba_session(struct ieee80211_vif *vif, u16 ba_rx_bitmap,
return;
}
for (i = 0; i < STA_TID_NUM; i++)
for (i = 0; i < IEEE80211_NUM_TIDS; i++)
if (ba_rx_bitmap & BIT(i))
set_bit(i, sta->ampdu_mlme.tid_rx_stop_requested);

12
net/mac80211/agg-tx.c
View File

@ -448,7 +448,7 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid,
if (WARN_ON(!local->ops->ampdu_action))
return -EINVAL;
if ((tid >= STA_TID_NUM) ||
if ((tid >= IEEE80211_NUM_TIDS) ||
!(local->hw.flags & IEEE80211_HW_AMPDU_AGGREGATION) ||
(local->hw.flags & IEEE80211_HW_TX_AMPDU_SETUP_IN_HW))
return -EINVAL;
@ -605,9 +605,9 @@ void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid)
trace_api_start_tx_ba_cb(sdata, ra, tid);
if (tid >= STA_TID_NUM) {
if (tid >= IEEE80211_NUM_TIDS) {
ht_dbg(sdata, "Bad TID value: tid = %d (>= %d)\n",
tid, STA_TID_NUM);
tid, IEEE80211_NUM_TIDS);
return;
}
@ -687,7 +687,7 @@ int ieee80211_stop_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid)
if (!local->ops->ampdu_action)
return -EINVAL;
if (tid >= STA_TID_NUM)
if (tid >= IEEE80211_NUM_TIDS)
return -EINVAL;
spin_lock_bh(&sta->lock);
@ -722,9 +722,9 @@ void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid)
trace_api_stop_tx_ba_cb(sdata, ra, tid);
if (tid >= STA_TID_NUM) {
if (tid >= IEEE80211_NUM_TIDS) {
ht_dbg(sdata, "Bad TID value: tid = %d (>= %d)\n",
tid, STA_TID_NUM);
tid, IEEE80211_NUM_TIDS);
return;
}

6
net/mac80211/debugfs_key.c
View File

@ -116,7 +116,7 @@ static ssize_t key_rx_spec_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
struct ieee80211_key *key = file->private_data;
char buf[14*NUM_RX_DATA_QUEUES+1], *p = buf;
char buf[14*IEEE80211_NUM_TIDS+1], *p = buf;
int i, len;
const u8 *rpn;
@ -126,7 +126,7 @@ static ssize_t key_rx_spec_read(struct file *file, char __user *userbuf,
len = scnprintf(buf, sizeof(buf), "\n");
break;
case WLAN_CIPHER_SUITE_TKIP:
for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
for (i = 0; i < IEEE80211_NUM_TIDS; i++)
p += scnprintf(p, sizeof(buf)+buf-p,
"%08x %04x\n",
key->u.tkip.rx[i].iv32,
@ -134,7 +134,7 @@ static ssize_t key_rx_spec_read(struct file *file, char __user *userbuf,
len = p - buf;
break;
case WLAN_CIPHER_SUITE_CCMP:
for (i = 0; i < NUM_RX_DATA_QUEUES + 1; i++) {
for (i = 0; i < IEEE80211_NUM_TIDS + 1; i++) {
rpn = key->u.ccmp.rx_pn[i];
p += scnprintf(p, sizeof(buf)+buf-p,
"%02x%02x%02x%02x%02x%02x\n",

10
net/mac80211/debugfs_sta.c
View File

@ -131,10 +131,10 @@ STA_OPS(connected_time);
static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
char buf[15*NUM_RX_DATA_QUEUES], *p = buf;
char buf[15*IEEE80211_NUM_TIDS], *p = buf;
int i;
struct sta_info *sta = file->private_data;
for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
for (i = 0; i < IEEE80211_NUM_TIDS; i++)
p += scnprintf(p, sizeof(buf)+buf-p, "%x ",
le16_to_cpu(sta->last_seq_ctrl[i]));
p += scnprintf(p, sizeof(buf)+buf-p, "\n");
@ -145,7 +145,7 @@ STA_OPS(last_seq_ctrl);
static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
char buf[71 + STA_TID_NUM * 40], *p = buf;
char buf[71 + IEEE80211_NUM_TIDS * 40], *p = buf;
int i;
struct sta_info *sta = file->private_data;
struct tid_ampdu_rx *tid_rx;
@ -158,7 +158,7 @@ static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
p += scnprintf(p, sizeof(buf) + buf - p,
"TID\t\tRX active\tDTKN\tSSN\t\tTX\tDTKN\tpending\n");
for (i = 0; i < STA_TID_NUM; i++) {
for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]);
tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]);
@ -220,7 +220,7 @@ static ssize_t sta_agg_status_write(struct file *file, const char __user *userbu
tid = simple_strtoul(buf, NULL, 0);
if (tid >= STA_TID_NUM)
if (tid >= IEEE80211_NUM_TIDS)
return -EINVAL;
if (tx) {

4
net/mac80211/ht.c
View File

@ -185,7 +185,7 @@ void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, bool tx)
cancel_work_sync(&sta->ampdu_mlme.work);
for (i = 0; i < STA_TID_NUM; i++) {
for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
__ieee80211_stop_tx_ba_session(sta, i, WLAN_BACK_INITIATOR, tx);
__ieee80211_stop_rx_ba_session(sta, i, WLAN_BACK_RECIPIENT,
WLAN_REASON_QSTA_LEAVE_QBSS, tx);
@ -209,7 +209,7 @@ void ieee80211_ba_session_work(struct work_struct *work)
return;
mutex_lock(&sta->ampdu_mlme.mtx);
for (tid = 0; tid < STA_TID_NUM; tid++) {
for (tid = 0; tid < IEEE80211_NUM_TIDS; tid++) {
if (test_and_clear_bit(tid, sta->ampdu_mlme.tid_rx_timer_expired))
___ieee80211_stop_rx_ba_session(
sta, tid, WLAN_BACK_RECIPIENT,

10
net/mac80211/key.c
View File

@ -339,7 +339,7 @@ struct ieee80211_key *ieee80211_key_alloc(u32 cipher, int idx, size_t key_len,
key->conf.iv_len = TKIP_IV_LEN;
key->conf.icv_len = TKIP_ICV_LEN;
if (seq) {
for (i = 0; i < NUM_RX_DATA_QUEUES; i++) {
for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
key->u.tkip.rx[i].iv32 =
get_unaligned_le32(&seq[2]);
key->u.tkip.rx[i].iv16 =
@ -352,7 +352,7 @@ struct ieee80211_key *ieee80211_key_alloc(u32 cipher, int idx, size_t key_len,
key->conf.iv_len = CCMP_HDR_LEN;
key->conf.icv_len = CCMP_MIC_LEN;
if (seq) {
for (i = 0; i < NUM_RX_DATA_QUEUES + 1; i++)
for (i = 0; i < IEEE80211_NUM_TIDS + 1; i++)
for (j = 0; j < CCMP_PN_LEN; j++)
key->u.ccmp.rx_pn[i][j] =
seq[CCMP_PN_LEN - j - 1];
@ -655,16 +655,16 @@ void ieee80211_get_key_rx_seq(struct ieee80211_key_conf *keyconf,
switch (key->conf.cipher) {
case WLAN_CIPHER_SUITE_TKIP:
if (WARN_ON(tid < 0 || tid >= NUM_RX_DATA_QUEUES))
if (WARN_ON(tid < 0 || tid >= IEEE80211_NUM_TIDS))
return;
seq->tkip.iv32 = key->u.tkip.rx[tid].iv32;
seq->tkip.iv16 = key->u.tkip.rx[tid].iv16;
break;
case WLAN_CIPHER_SUITE_CCMP:
if (WARN_ON(tid < -1 || tid >= NUM_RX_DATA_QUEUES))
if (WARN_ON(tid < -1 || tid >= IEEE80211_NUM_TIDS))
return;
if (tid < 0)
pn = key->u.ccmp.rx_pn[NUM_RX_DATA_QUEUES];
pn = key->u.ccmp.rx_pn[IEEE80211_NUM_TIDS];
else
pn = key->u.ccmp.rx_pn[tid];
memcpy(seq->ccmp.pn, pn, CCMP_PN_LEN);

8
net/mac80211/key.h
View File

@ -30,8 +30,6 @@
#define TKIP_ICV_LEN 4
#define CMAC_PN_LEN 6
#define NUM_RX_DATA_QUEUES 16
struct ieee80211_local;
struct ieee80211_sub_if_data;
struct sta_info;
@ -82,17 +80,17 @@ struct ieee80211_key {
struct tkip_ctx tx;
/* last received RSC */
struct tkip_ctx rx[NUM_RX_DATA_QUEUES];
struct tkip_ctx rx[IEEE80211_NUM_TIDS];
} tkip;
struct {
atomic64_t tx_pn;
/*
* Last received packet number. The first
* NUM_RX_DATA_QUEUES counters are used with Data
* IEEE80211_NUM_TIDS counters are used with Data
* frames and the last counter is used with Robust
* Management frames.
*/
u8 rx_pn[NUM_RX_DATA_QUEUES + 1][CCMP_PN_LEN];
u8 rx_pn[IEEE80211_NUM_TIDS + 1][CCMP_PN_LEN];
struct crypto_cipher *tfm;
u32 replays; /* dot11RSNAStatsCCMPReplays */
} ccmp;

4
net/mac80211/rx.c
View File

@ -408,10 +408,10 @@ static void ieee80211_parse_qos(struct ieee80211_rx_data *rx)
*
* We also use that counter for non-QoS STAs.
*/
seqno_idx = NUM_RX_DATA_QUEUES;
seqno_idx = IEEE80211_NUM_TIDS;
security_idx = 0;
if (ieee80211_is_mgmt(hdr->frame_control))
security_idx = NUM_RX_DATA_QUEUES;
security_idx = IEEE80211_NUM_TIDS;
tid = 0;
}

10
net/mac80211/sta_info.c
View File

@ -142,7 +142,7 @@ static void free_sta_work(struct work_struct *wk)
* drivers have to handle aggregation stop being requested, followed
* directly by station destruction.
*/
for (i = 0; i < STA_TID_NUM; i++) {
for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
tid_tx = rcu_dereference_raw(sta->ampdu_mlme.tid_tx[i]);
if (!tid_tx)
continue;
@ -330,7 +330,7 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
return NULL;
}
for (i = 0; i < STA_TID_NUM; i++) {
for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
/*
* timer_to_tid must be initialized with identity mapping
* to enable session_timer's data differentiation. See
@ -343,7 +343,7 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
skb_queue_head_init(&sta->tx_filtered[i]);
}
for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
for (i = 0; i < IEEE80211_NUM_TIDS; i++)
sta->last_seq_ctrl[i] = cpu_to_le16(USHRT_MAX);
sta_dbg(sdata, "Allocated STA %pM\n", sta->sta.addr);
@ -985,7 +985,7 @@ void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta)
clear_sta_flag(sta, WLAN_STA_SP);
BUILD_BUG_ON(BITS_TO_LONGS(STA_TID_NUM) > 1);
BUILD_BUG_ON(BITS_TO_LONGS(IEEE80211_NUM_TIDS) > 1);
sta->driver_buffered_tids = 0;
if (!(local->hw.flags & IEEE80211_HW_AP_LINK_PS))
@ -1369,7 +1369,7 @@ void ieee80211_sta_set_buffered(struct ieee80211_sta *pubsta,
{
struct sta_info *sta = container_of(pubsta, struct sta_info, sta);
if (WARN_ON(tid >= STA_TID_NUM))
if (WARN_ON(tid >= IEEE80211_NUM_TIDS))
return;
if (buffered)

19
net/mac80211/sta_info.h
View File

@ -80,7 +80,6 @@ enum ieee80211_sta_info_flags {
WLAN_STA_TOFFSET_KNOWN,
};
#define STA_TID_NUM 16
#define ADDBA_RESP_INTERVAL HZ
#define HT_AGG_MAX_RETRIES 15
#define HT_AGG_BURST_RETRIES 3
@ -197,15 +196,15 @@ struct tid_ampdu_rx {
struct sta_ampdu_mlme {
struct mutex mtx;
/* rx */
struct tid_ampdu_rx __rcu *tid_rx[STA_TID_NUM];
unsigned long tid_rx_timer_expired[BITS_TO_LONGS(STA_TID_NUM)];
unsigned long tid_rx_stop_requested[BITS_TO_LONGS(STA_TID_NUM)];
struct tid_ampdu_rx __rcu *tid_rx[IEEE80211_NUM_TIDS];
unsigned long tid_rx_timer_expired[BITS_TO_LONGS(IEEE80211_NUM_TIDS)];
unsigned long tid_rx_stop_requested[BITS_TO_LONGS(IEEE80211_NUM_TIDS)];
/* tx */
struct work_struct work;
struct tid_ampdu_tx __rcu *tid_tx[STA_TID_NUM];
struct tid_ampdu_tx *tid_start_tx[STA_TID_NUM];
unsigned long last_addba_req_time[STA_TID_NUM];
u8 addba_req_num[STA_TID_NUM];
struct tid_ampdu_tx __rcu *tid_tx[IEEE80211_NUM_TIDS];
struct tid_ampdu_tx *tid_start_tx[IEEE80211_NUM_TIDS];
unsigned long last_addba_req_time[IEEE80211_NUM_TIDS];
u8 addba_req_num[IEEE80211_NUM_TIDS];
u8 dialog_token_allocator;
};
@ -330,7 +329,7 @@ struct sta_info {
int last_signal;
struct ewma avg_signal;
/* Plus 1 for non-QoS frames */
__le16 last_seq_ctrl[NUM_RX_DATA_QUEUES + 1];
__le16 last_seq_ctrl[IEEE80211_NUM_TIDS + 1];
/* Updated from TX status path only, no locking requirements */
unsigned long tx_filtered_count;
@ -351,7 +350,7 @@ struct sta_info {
* Aggregation information, locked with lock.
*/
struct sta_ampdu_mlme ampdu_mlme;
u8 timer_to_tid[STA_TID_NUM];
u8 timer_to_tid[IEEE80211_NUM_TIDS];
#ifdef CONFIG_MAC80211_MESH
/*