From 5f85a7890cbfd2be8f4c6620b2a6774d6b5ac647 Mon Sep 17 00:00:00 2001 From: Emmanuel Grumbach Date: Thu, 25 Aug 2011 23:11:18 -0700 Subject: [PATCH] iwlagn: iwl_tid_data moves to iwl-shared The rate scaling and the transport need to access the data in iwl_tid_data, hence the move. Note that the only component in the upper layer that needs this data is the rate scaling. Refactoring the rate scaling may help to move iwl_tid_data from the shared area to the transport area. Signed-off-by: Emmanuel Grumbach Signed-off-by: Wey-Yi Guy Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-agn-rs.c | 18 +++---- drivers/net/wireless/iwlwifi/iwl-agn-tx.c | 47 ++++++++++--------- drivers/net/wireless/iwlwifi/iwl-agn.c | 2 +- drivers/net/wireless/iwlwifi/iwl-commands.h | 1 + drivers/net/wireless/iwlwifi/iwl-debugfs.c | 25 +++++----- drivers/net/wireless/iwlwifi/iwl-dev.h | 39 --------------- drivers/net/wireless/iwlwifi/iwl-shared.h | 32 +++++++++++++ .../net/wireless/iwlwifi/iwl-trans-tx-pcie.c | 4 +- drivers/net/wireless/iwlwifi/iwl-trans.c | 2 +- 9 files changed, 83 insertions(+), 87 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c index 3870b723c8c2..356762f21d2f 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c @@ -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]; @@ -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); @@ -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; @@ -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 @@ -2651,9 +2652,10 @@ lq_update: 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", diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c index 97d03a85d579..bb6605b51956 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c @@ -410,13 +410,15 @@ 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); @@ -424,8 +426,8 @@ int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb) seq_number += 0x10; /* aggregation is on for this */ 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; } } @@ -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); @@ -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; } @@ -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; @@ -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; @@ -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 @@ -609,7 +612,7 @@ 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; @@ -617,7 +620,7 @@ int iwlagn_tx_agg_stop(struct iwl_priv *priv, struct ieee80211_vif *vif, 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); @@ -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 */ @@ -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; @@ -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; } } @@ -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); diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index 37d2043fb7e9..1cf36783c1c3 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -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); } diff --git a/drivers/net/wireless/iwlwifi/iwl-commands.h b/drivers/net/wireless/iwlwifi/iwl-commands.h index 56252897ab3e..cb06196e0e80 100644 --- a/drivers/net/wireless/iwlwifi/iwl-commands.h +++ b/drivers/net/wireless/iwlwifi/iwl-commands.h @@ -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) diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c index a01beb31d994..e320cc10167e 100644 --- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c +++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c @@ -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; @@ -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"); diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h index eb98df6e883b..6a6aba052782 100644 --- a/drivers/net/wireless/iwlwifi/iwl-dev.h +++ b/drivers/net/wireless/iwlwifi/iwl-dev.h @@ -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 { @@ -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; }; diff --git a/drivers/net/wireless/iwlwifi/iwl-shared.h b/drivers/net/wireless/iwlwifi/iwl-shared.h index 27aee528ce3a..bb61c13d4998 100644 --- a/drivers/net/wireless/iwlwifi/iwl-shared.h +++ b/drivers/net/wireless/iwlwifi/iwl-shared.h @@ -68,6 +68,8 @@ #include #include +#include "iwl-commands.h" + /*This files includes all the types / functions that are exported by the * upper layer to the bus and transport layer */ @@ -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 * @@ -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 */ diff --git a/drivers/net/wireless/iwlwifi/iwl-trans-tx-pcie.c b/drivers/net/wireless/iwlwifi/iwl-trans-tx-pcie.c index 3105409bd3cc..9f4ffebfa56d 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans-tx-pcie.c +++ b/drivers/net/wireless/iwlwifi/iwl-trans-tx-pcie.c @@ -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; diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.c b/drivers/net/wireless/iwlwifi/iwl-trans.c index b95e71389b7c..a18ed425c24c 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans.c +++ b/drivers/net/wireless/iwlwifi/iwl-trans.c @@ -1193,7 +1193,7 @@ static void iwl_trans_pcie_reclaim(struct iwl_trans *trans, int txq_id, if (txq->sched_retry) { agg_state = - priv->stations[txq->sta_id].tid[txq->tid].agg.state; + priv->shrd->tid_data[txq->sta_id][txq->tid].agg.state; cond = (agg_state != IWL_EMPTYING_HW_QUEUE_DELBA); } else { cond = (status != TX_STATUS_FAIL_PASSIVE_NO_RX); -- 2.34.1