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yaml
---
r: 265875
b: refs/heads/master
c: 5f85a78
h: refs/heads/master
i:
  265873: 3a873b6
  265871: 2b54e30
v: v3
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Emmanuel Grumbach authored and John W. Linville committed Aug 29, 2011
1 parent 81f7fda commit c38338e
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Showing 10 changed files with 84 additions and 88 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 1603dd495f87ae97763870d57237744d90bc2bab
refs/heads/master: 5f85a7890cbfd2be8f4c6620b2a6774d6b5ac647
18 changes: 10 additions & 8 deletions trunk/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
Original file line number Diff line number Diff line change
Expand Up @@ -297,10 +297,10 @@ static u8 rs_tl_add_packet(struct iwl_lq_sta *lq_data,
u8 *qc = ieee80211_get_qos_ctl(hdr);
tid = qc[0] & 0xf;
} else
return MAX_TID_COUNT;
return IWL_MAX_TID_COUNT;

if (unlikely(tid >= TID_MAX_LOAD_COUNT))
return MAX_TID_COUNT;
return IWL_MAX_TID_COUNT;

tl = &lq_data->load[tid];

Expand All @@ -313,7 +313,7 @@ static u8 rs_tl_add_packet(struct iwl_lq_sta *lq_data,
tl->queue_count = 1;
tl->head = 0;
tl->packet_count[0] = 1;
return MAX_TID_COUNT;
return IWL_MAX_TID_COUNT;
}

time_diff = TIME_WRAP_AROUND(tl->time_stamp, curr_time);
Expand Down Expand Up @@ -2261,7 +2261,7 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
u8 done_search = 0;
u16 high_low;
s32 sr;
u8 tid = MAX_TID_COUNT;
u8 tid = IWL_MAX_TID_COUNT;
struct iwl_tid_data *tid_data;
struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
struct iwl_rxon_context *ctx = sta_priv->common.ctx;
Expand All @@ -2280,8 +2280,9 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
lq_sta->supp_rates = sta->supp_rates[lq_sta->band];

tid = rs_tl_add_packet(lq_sta, hdr);
if ((tid != MAX_TID_COUNT) && (lq_sta->tx_agg_tid_en & (1 << tid))) {
tid_data = &priv->stations[lq_sta->lq.sta_id].tid[tid];
if ((tid != IWL_MAX_TID_COUNT) &&
(lq_sta->tx_agg_tid_en & (1 << tid))) {
tid_data = &priv->shrd->tid_data[lq_sta->lq.sta_id][tid];
if (tid_data->agg.state == IWL_AGG_OFF)
lq_sta->is_agg = 0;
else
Expand Down Expand Up @@ -2651,9 +2652,10 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
iwl_ht_enabled(priv)) {
if ((lq_sta->last_tpt > IWL_AGG_TPT_THREHOLD) &&
(lq_sta->tx_agg_tid_en & (1 << tid)) &&
(tid != MAX_TID_COUNT)) {
(tid != IWL_MAX_TID_COUNT)) {
u8 sta_id = lq_sta->lq.sta_id;
tid_data =
&priv->stations[lq_sta->lq.sta_id].tid[tid];
&priv->shrd->tid_data[sta_id][tid];
if (tid_data->agg.state == IWL_AGG_OFF) {
IWL_DEBUG_RATE(priv,
"try to aggregate tid %d\n",
Expand Down
47 changes: 25 additions & 22 deletions trunk/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
Original file line number Diff line number Diff line change
Expand Up @@ -410,22 +410,24 @@ int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)

if (ieee80211_is_data_qos(fc)) {
u8 *qc = NULL;
struct iwl_tid_data *tid_data;
qc = ieee80211_get_qos_ctl(hdr);
tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
tid_data = &priv->shrd->tid_data[sta_id][tid];

if (WARN_ON_ONCE(tid >= MAX_TID_COUNT))
if (WARN_ON_ONCE(tid >= IWL_MAX_TID_COUNT))
goto drop_unlock_sta;

seq_number = priv->stations[sta_id].tid[tid].seq_number;
seq_number = tid_data->seq_number;
seq_number &= IEEE80211_SCTL_SEQ;
hdr->seq_ctrl = hdr->seq_ctrl &
cpu_to_le16(IEEE80211_SCTL_FRAG);
hdr->seq_ctrl |= cpu_to_le16(seq_number);
seq_number += 0x10;
/* aggregation is on for this <sta,tid> */
if (info->flags & IEEE80211_TX_CTL_AMPDU &&
priv->stations[sta_id].tid[tid].agg.state == IWL_AGG_ON) {
txq_id = priv->stations[sta_id].tid[tid].agg.txq_id;
tid_data->agg.state == IWL_AGG_ON) {
txq_id = tid_data->agg.txq_id;
is_agg = true;
}
}
Expand Down Expand Up @@ -456,9 +458,10 @@ int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
goto drop_unlock_sta;

if (ieee80211_is_data_qos(fc)) {
priv->stations[sta_id].tid[tid].tfds_in_queue++;
priv->shrd->tid_data[sta_id][tid].tfds_in_queue++;
if (!ieee80211_has_morefrags(fc))
priv->stations[sta_id].tid[tid].seq_number = seq_number;
priv->shrd->tid_data[sta_id][tid].seq_number =
seq_number;
}

spin_unlock(&priv->shrd->sta_lock);
Expand Down Expand Up @@ -521,10 +524,10 @@ int iwlagn_tx_agg_start(struct iwl_priv *priv, struct ieee80211_vif *vif,
IWL_ERR(priv, "Start AGG on invalid station\n");
return -ENXIO;
}
if (unlikely(tid >= MAX_TID_COUNT))
if (unlikely(tid >= IWL_MAX_TID_COUNT))
return -EINVAL;

if (priv->stations[sta_id].tid[tid].agg.state != IWL_AGG_OFF) {
if (priv->shrd->tid_data[sta_id][tid].agg.state != IWL_AGG_OFF) {
IWL_ERR(priv, "Start AGG when state is not IWL_AGG_OFF !\n");
return -ENXIO;
}
Expand All @@ -536,7 +539,7 @@ int iwlagn_tx_agg_start(struct iwl_priv *priv, struct ieee80211_vif *vif,
}

spin_lock_irqsave(&priv->shrd->sta_lock, flags);
tid_data = &priv->stations[sta_id].tid[tid];
tid_data = &priv->shrd->tid_data[sta_id][tid];
*ssn = SEQ_TO_SN(tid_data->seq_number);
tid_data->agg.txq_id = txq_id;
tid_data->agg.tx_fifo = tx_fifo;
Expand All @@ -548,7 +551,7 @@ int iwlagn_tx_agg_start(struct iwl_priv *priv, struct ieee80211_vif *vif,
return ret;

spin_lock_irqsave(&priv->shrd->sta_lock, flags);
tid_data = &priv->stations[sta_id].tid[tid];
tid_data = &priv->shrd->tid_data[sta_id][tid];
if (tid_data->tfds_in_queue == 0) {
IWL_DEBUG_HT(priv, "HW queue is empty\n");
tid_data->agg.state = IWL_AGG_ON;
Expand Down Expand Up @@ -583,11 +586,11 @@ int iwlagn_tx_agg_stop(struct iwl_priv *priv, struct ieee80211_vif *vif,

spin_lock_irqsave(&priv->shrd->sta_lock, flags);

tid_data = &priv->stations[sta_id].tid[tid];
tid_data = &priv->shrd->tid_data[sta_id][tid];
ssn = (tid_data->seq_number & IEEE80211_SCTL_SEQ) >> 4;
txq_id = tid_data->agg.txq_id;

switch (priv->stations[sta_id].tid[tid].agg.state) {
switch (priv->shrd->tid_data[sta_id][tid].agg.state) {
case IWL_EMPTYING_HW_QUEUE_ADDBA:
/*
* This can happen if the peer stops aggregation
Expand All @@ -609,15 +612,15 @@ int iwlagn_tx_agg_stop(struct iwl_priv *priv, struct ieee80211_vif *vif,
/* The queue is not empty */
if (write_ptr != read_ptr) {
IWL_DEBUG_HT(priv, "Stopping a non empty AGG HW QUEUE\n");
priv->stations[sta_id].tid[tid].agg.state =
priv->shrd->tid_data[sta_id][tid].agg.state =
IWL_EMPTYING_HW_QUEUE_DELBA;
spin_unlock_irqrestore(&priv->shrd->sta_lock, flags);
return 0;
}

IWL_DEBUG_HT(priv, "HW queue is empty\n");
turn_off:
priv->stations[sta_id].tid[tid].agg.state = IWL_AGG_OFF;
priv->shrd->tid_data[sta_id][tid].agg.state = IWL_AGG_OFF;

/* do not restore/save irqs */
spin_unlock(&priv->shrd->sta_lock);
Expand All @@ -643,14 +646,14 @@ static int iwlagn_txq_check_empty(struct iwl_priv *priv,
{
struct iwl_queue *q = &priv->txq[txq_id].q;
u8 *addr = priv->stations[sta_id].sta.sta.addr;
struct iwl_tid_data *tid_data = &priv->stations[sta_id].tid[tid];
struct iwl_tid_data *tid_data = &priv->shrd->tid_data[sta_id][tid];
struct iwl_rxon_context *ctx;

ctx = &priv->contexts[priv->stations[sta_id].ctxid];

lockdep_assert_held(&priv->shrd->sta_lock);

switch (priv->stations[sta_id].tid[tid].agg.state) {
switch (priv->shrd->tid_data[sta_id][tid].agg.state) {
case IWL_EMPTYING_HW_QUEUE_DELBA:
/* We are reclaiming the last packet of the */
/* aggregated HW queue */
Expand Down Expand Up @@ -815,7 +818,7 @@ static void iwl_rx_reply_tx_agg(struct iwl_priv *priv,
IWLAGN_TX_RES_TID_POS;
int sta_id = (tx_resp->ra_tid & IWLAGN_TX_RES_RA_MSK) >>
IWLAGN_TX_RES_RA_POS;
struct iwl_ht_agg *agg = &priv->stations[sta_id].tid[tid].agg;
struct iwl_ht_agg *agg = &priv->shrd->tid_data[sta_id][tid].agg;
u32 status = le16_to_cpu(tx_resp->status.status);
int i;

Expand Down Expand Up @@ -893,13 +896,13 @@ static void iwl_free_tfds_in_queue(struct iwl_priv *priv,
{
lockdep_assert_held(&priv->shrd->sta_lock);

if (priv->stations[sta_id].tid[tid].tfds_in_queue >= freed)
priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
if (priv->shrd->tid_data[sta_id][tid].tfds_in_queue >= freed)
priv->shrd->tid_data[sta_id][tid].tfds_in_queue -= freed;
else {
IWL_DEBUG_TX(priv, "free more than tfds_in_queue (%u:%d)\n",
priv->stations[sta_id].tid[tid].tfds_in_queue,
priv->shrd->tid_data[sta_id][tid].tfds_in_queue,
freed);
priv->stations[sta_id].tid[tid].tfds_in_queue = 0;
priv->shrd->tid_data[sta_id][tid].tfds_in_queue = 0;
}
}

Expand Down Expand Up @@ -1149,7 +1152,7 @@ void iwlagn_rx_reply_compressed_ba(struct iwl_priv *priv,
txq = &priv->txq[scd_flow];
sta_id = ba_resp->sta_id;
tid = ba_resp->tid;
agg = &priv->stations[sta_id].tid[tid].agg;
agg = &priv->shrd->tid_data[sta_id][tid].agg;

/* Find index of block-ack window */
index = ba_resp_scd_ssn & (txq->q.n_bd - 1);
Expand Down
2 changes: 1 addition & 1 deletion trunk/drivers/net/wireless/iwlwifi/iwl-agn.c
Original file line number Diff line number Diff line change
Expand Up @@ -2203,7 +2203,7 @@ static int iwlagn_mac_suspend(struct ieee80211_hw *hw,
* since the uCode will add 0x10 before using the value.
*/
for (i = 0; i < 8; i++) {
seq = priv->stations[IWL_AP_ID].tid[i].seq_number;
seq = priv->shrd->tid_data[IWL_AP_ID][i].seq_number;
seq -= 0x10;
wakeup_filter_cmd.qos_seq[i] = cpu_to_le16(seq);
}
Expand Down
1 change: 1 addition & 0 deletions trunk/drivers/net/wireless/iwlwifi/iwl-commands.h
Original file line number Diff line number Diff line change
Expand Up @@ -808,6 +808,7 @@ struct iwl_qosparam_cmd {
#define IWLAGN_STATION_COUNT 16

#define IWL_INVALID_STATION 255
#define IWL_MAX_TID_COUNT 9

#define STA_FLG_TX_RATE_MSK cpu_to_le32(1 << 2)
#define STA_FLG_PWR_SAVE_MSK cpu_to_le32(1 << 8)
Expand Down
25 changes: 11 additions & 14 deletions trunk/drivers/net/wireless/iwlwifi/iwl-debugfs.c
Original file line number Diff line number Diff line change
Expand Up @@ -340,6 +340,7 @@ static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
{
struct iwl_priv *priv = file->private_data;
struct iwl_station_entry *station;
struct iwl_tid_data *tid_data;
int max_sta = hw_params(priv).max_stations;
char *buf;
int i, j, pos = 0;
Expand All @@ -363,22 +364,18 @@ static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
i, station->sta.sta.addr,
station->sta.station_flags_msk);
pos += scnprintf(buf + pos, bufsz - pos,
"TID\tseq_num\ttxq_id\tframes\ttfds\t");
pos += scnprintf(buf + pos, bufsz - pos,
"start_idx\tbitmap\t\t\trate_n_flags\n");
"TID\tseq_num\ttxq_id\ttfds\trate_n_flags\n");

for (j = 0; j < MAX_TID_COUNT; j++) {
for (j = 0; j < IWL_MAX_TID_COUNT; j++) {
tid_data = &priv->shrd->tid_data[i][j];
pos += scnprintf(buf + pos, bufsz - pos,
"%d:\t%#x\t%#x\t%u\t%u\t%u\t\t%#.16llx\t%#x",
j, station->tid[j].seq_number,
station->tid[j].agg.txq_id,
station->tid[j].agg.frame_count,
station->tid[j].tfds_in_queue,
station->tid[j].agg.start_idx,
station->tid[j].agg.bitmap,
station->tid[j].agg.rate_n_flags);

if (station->tid[j].agg.wait_for_ba)
"%d:\t%#x\t%#x\t%u\t%#x",
j, tid_data->seq_number,
tid_data->agg.txq_id,
tid_data->tfds_in_queue,
tid_data->agg.rate_n_flags);

if (tid_data->agg.wait_for_ba)
pos += scnprintf(buf + pos, bufsz - pos,
" - waitforba");
pos += scnprintf(buf + pos, bufsz - pos, "\n");
Expand Down
39 changes: 0 additions & 39 deletions trunk/drivers/net/wireless/iwlwifi/iwl-dev.h
Original file line number Diff line number Diff line change
Expand Up @@ -331,47 +331,9 @@ struct iwl_host_cmd {

#define IWL_SUPPORTED_RATES_IE_LEN 8

#define MAX_TID_COUNT 9

#define IWL_INVALID_RATE 0xFF
#define IWL_INVALID_VALUE -1

/**
* struct iwl_ht_agg -- aggregation status while waiting for block-ack
* @txq_id: Tx queue used for Tx attempt
* @frame_count: # frames attempted by Tx command
* @wait_for_ba: Expect block-ack before next Tx reply
* @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
* @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
* @bitmap1: High order, one bit for each frame pending ACK in Tx window
* @rate_n_flags: Rate at which Tx was attempted
*
* If REPLY_TX indicates that aggregation was attempted, driver must wait
* for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
* until block ack arrives.
*/
struct iwl_ht_agg {
u16 txq_id;
u16 frame_count;
u16 wait_for_ba;
u16 start_idx;
u64 bitmap;
u32 rate_n_flags;
#define IWL_AGG_OFF 0
#define IWL_AGG_ON 1
#define IWL_EMPTYING_HW_QUEUE_ADDBA 2
#define IWL_EMPTYING_HW_QUEUE_DELBA 3
u8 state;
u8 tx_fifo;
};


struct iwl_tid_data {
u16 seq_number; /* agn only */
u16 tfds_in_queue;
struct iwl_ht_agg agg;
};

union iwl_ht_rate_supp {
u16 rates;
struct {
Expand Down Expand Up @@ -422,7 +384,6 @@ struct iwl_qos_info {
*/
struct iwl_station_entry {
struct iwl_addsta_cmd sta;
struct iwl_tid_data tid[MAX_TID_COUNT];
u8 used, ctxid;
struct iwl_link_quality_cmd *lq;
};
Expand Down
32 changes: 32 additions & 0 deletions trunk/drivers/net/wireless/iwlwifi/iwl-shared.h
Original file line number Diff line number Diff line change
Expand Up @@ -68,6 +68,8 @@
#include <linux/mutex.h>
#include <linux/gfp.h>

#include "iwl-commands.h"

/*This files includes all the types / functions that are exported by the
* upper layer to the bus and transport layer */

Expand Down Expand Up @@ -166,6 +168,34 @@ struct iwl_hw_params {
const struct iwl_sensitivity_ranges *sens;
};

/**
* struct iwl_ht_agg - aggregation status while waiting for block-ack
* @txq_id: Tx queue used for Tx attempt
* @wait_for_ba: Expect block-ack before next Tx reply
* @rate_n_flags: Rate at which Tx was attempted
*
* If REPLY_TX indicates that aggregation was attempted, driver must wait
* for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
* until block ack arrives.
*/
struct iwl_ht_agg {
u16 txq_id;
u16 wait_for_ba;
u32 rate_n_flags;
#define IWL_AGG_OFF 0
#define IWL_AGG_ON 1
#define IWL_EMPTYING_HW_QUEUE_ADDBA 2
#define IWL_EMPTYING_HW_QUEUE_DELBA 3
u8 state;
u8 tx_fifo;
};

struct iwl_tid_data {
u16 seq_number; /* agn only */
u16 tfds_in_queue;
struct iwl_ht_agg agg;
};

/**
* struct iwl_shared - shared fields for all the layers of the driver
*
Expand Down Expand Up @@ -200,6 +230,8 @@ struct iwl_shared {
spinlock_t lock;
spinlock_t sta_lock;
struct mutex mutex;

struct iwl_tid_data tid_data[IWLAGN_STATION_COUNT][IWL_MAX_TID_COUNT];
};

/*Whatever _m is (iwl_trans, iwl_priv, iwl_bus, these macros will work */
Expand Down
4 changes: 2 additions & 2 deletions trunk/drivers/net/wireless/iwlwifi/iwl-trans-tx-pcie.c
Original file line number Diff line number Diff line change
Expand Up @@ -438,11 +438,11 @@ void iwl_trans_pcie_txq_agg_setup(struct iwl_priv *priv, int sta_id, int tid,

if (WARN_ON(sta_id == IWL_INVALID_STATION))
return;
if (WARN_ON(tid >= MAX_TID_COUNT))
if (WARN_ON(tid >= IWL_MAX_TID_COUNT))
return;

spin_lock_irqsave(&priv->shrd->sta_lock, flags);
tid_data = &priv->stations[sta_id].tid[tid];
tid_data = &priv->shrd->tid_data[sta_id][tid];
ssn_idx = SEQ_TO_SN(tid_data->seq_number);
txq_id = tid_data->agg.txq_id;
tx_fifo = tid_data->agg.tx_fifo;
Expand Down
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