--- a/drivers/net/wireless/ath/ath9k/common.h +++ b/drivers/net/wireless/ath/ath9k/common.h @@ -81,6 +81,7 @@ struct ath_buf { u16 bf_flags; struct ath_buf_state bf_state; dma_addr_t bf_dmacontext; + struct ath_wiphy *aphy; }; struct ath_atx_tid { --- a/drivers/net/wireless/ath/ath9k/rc.h +++ b/drivers/net/wireless/ath/ath9k/rc.h @@ -167,24 +167,18 @@ struct ath_rate_priv { struct ath_rate_softc *asc; }; +#define ATH_TX_INFO_FRAME_TYPE_INTERNAL (1 << 0) +#define ATH_TX_INFO_FRAME_TYPE_PAUSE (1 << 1) +#define ATH_TX_INFO_UPDATE_RC (1 << 2) +#define ATH_TX_INFO_XRETRY (1 << 3) +#define ATH_TX_INFO_UNDERRUN (1 << 4) + enum ath9k_internal_frame_type { ATH9K_NOT_INTERNAL, ATH9K_INT_PAUSE, ATH9K_INT_UNPAUSE }; -struct ath_tx_info_priv { - struct ath_wiphy *aphy; - struct ath_tx_status tx; - int n_frames; - int n_bad_frames; - bool update_rc; - enum ath9k_internal_frame_type frame_type; -}; - -#define ATH_TX_INFO_PRIV(tx_info) \ - ((struct ath_tx_info_priv *)((tx_info)->rate_driver_data[0])) - void ath_rate_attach(struct ath_softc *sc); u8 ath_rate_findrateix(struct ath_softc *sc, u8 dot11_rate); int ath_rate_control_register(void); --- a/drivers/net/wireless/ath/ath9k/virtual.c +++ b/drivers/net/wireless/ath/ath9k/virtual.c @@ -338,13 +338,11 @@ void ath9k_wiphy_chan_work(struct work_s void ath9k_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) { struct ath_wiphy *aphy = hw->priv; - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); - struct ath_tx_info_priv *tx_info_priv = ATH_TX_INFO_PRIV(tx_info); - if (tx_info_priv && tx_info_priv->frame_type == ATH9K_INT_PAUSE && + if ((tx_info->driver_flags & ATH_TX_INFO_FRAME_TYPE_PAUSE) && aphy->state == ATH_WIPHY_PAUSING) { - if (!(info->flags & IEEE80211_TX_STAT_ACK)) { + if (!(tx_info->flags & IEEE80211_TX_STAT_ACK)) { printk(KERN_DEBUG "ath9k: %s: no ACK for pause " "frame\n", wiphy_name(hw->wiphy)); /* @@ -363,9 +361,6 @@ void ath9k_tx_status(struct ieee80211_hw } } - kfree(tx_info_priv); - tx_info->rate_driver_data[0] = NULL; - dev_kfree_skb(skb); } --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -251,6 +251,7 @@ static struct ath_buf* ath_clone_txbuf(s ATH_TXBUF_RESET(tbf); + tbf->aphy = bf->aphy; tbf->bf_mpdu = bf->bf_mpdu; tbf->bf_buf_addr = bf->bf_buf_addr; *(tbf->bf_desc) = *(bf->bf_desc); @@ -270,7 +271,6 @@ static void ath_tx_complete_aggr(struct struct ieee80211_hw *hw; struct ieee80211_hdr *hdr; struct ieee80211_tx_info *tx_info; - struct ath_tx_info_priv *tx_info_priv; struct ath_atx_tid *tid = NULL; struct ath_buf *bf_next, *bf_last = bf->bf_lastbf; struct ath_desc *ds = bf_last->bf_desc; @@ -284,8 +284,7 @@ static void ath_tx_complete_aggr(struct hdr = (struct ieee80211_hdr *)skb->data; tx_info = IEEE80211_SKB_CB(skb); - tx_info_priv = (struct ath_tx_info_priv *) tx_info->rate_driver_data[0]; - hw = tx_info_priv->aphy->hw; + hw = bf->aphy->hw; rcu_read_lock(); @@ -464,7 +463,6 @@ static u32 ath_lookup_rate(struct ath_so struct sk_buff *skb; struct ieee80211_tx_info *tx_info; struct ieee80211_tx_rate *rates; - struct ath_tx_info_priv *tx_info_priv; u32 max_4ms_framelen, frmlen; u16 aggr_limit, legacy = 0; int i; @@ -472,7 +470,6 @@ static u32 ath_lookup_rate(struct ath_so skb = bf->bf_mpdu; tx_info = IEEE80211_SKB_CB(skb); rates = tx_info->control.rates; - tx_info_priv = (struct ath_tx_info_priv *)tx_info->rate_driver_data[0]; /* * Find the lowest frame length among the rate series that will have a @@ -1560,21 +1557,26 @@ static int ath_tx_setup_buffer(struct ie struct ath_softc *sc = aphy->sc; struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; - struct ath_tx_info_priv *tx_info_priv; int hdrlen; __le16 fc; - tx_info_priv = kzalloc(sizeof(*tx_info_priv), GFP_ATOMIC); - if (unlikely(!tx_info_priv)) - return -ENOMEM; - tx_info->rate_driver_data[0] = tx_info_priv; - tx_info_priv->aphy = aphy; - tx_info_priv->frame_type = txctl->frame_type; + tx_info->driver_flags = 0; + switch (txctl->frame_type) { + case ATH9K_NOT_INTERNAL: + break; + case ATH9K_INT_PAUSE: + tx_info->driver_flags |= ATH_TX_INFO_FRAME_TYPE_PAUSE; + /* fall through */ + case ATH9K_INT_UNPAUSE: + tx_info->driver_flags |= ATH_TX_INFO_FRAME_TYPE_INTERNAL; + break; + } hdrlen = ieee80211_get_hdrlen_from_skb(skb); fc = hdr->frame_control; ATH_TXBUF_RESET(bf); + bf->aphy = aphy; bf->bf_frmlen = skb->len + FCS_LEN - (hdrlen & 3); if (conf_is_ht(&hw->conf) && !is_pae(skb)) @@ -1599,8 +1601,6 @@ static int ath_tx_setup_buffer(struct ie skb->len, DMA_TO_DEVICE); if (unlikely(dma_mapping_error(sc->dev, bf->bf_dmacontext))) { bf->bf_mpdu = NULL; - kfree(tx_info_priv); - tx_info->rate_driver_data[0] = NULL; ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_FATAL, "dma_mapping_error() on TX\n"); return -ENOMEM; @@ -1781,27 +1781,17 @@ exit: /*****************/ static void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb, - int tx_flags) + struct ath_wiphy *aphy, int tx_flags) { struct ieee80211_hw *hw = sc->hw; struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); - struct ath_tx_info_priv *tx_info_priv = ATH_TX_INFO_PRIV(tx_info); struct ath_common *common = ath9k_hw_common(sc->sc_ah); int hdrlen, padsize; - int frame_type = ATH9K_NOT_INTERNAL; ath_print(common, ATH_DBG_XMIT, "TX complete: skb: %p\n", skb); - if (tx_info_priv) { - hw = tx_info_priv->aphy->hw; - frame_type = tx_info_priv->frame_type; - } - - if (tx_info->flags & IEEE80211_TX_CTL_NO_ACK || - tx_info->flags & IEEE80211_TX_STAT_TX_FILTERED) { - kfree(tx_info_priv); - tx_info->rate_driver_data[0] = NULL; - } + if (aphy) + hw = aphy->hw; if (tx_flags & ATH_TX_BAR) tx_info->flags |= IEEE80211_TX_STAT_AMPDU_NO_BACK; @@ -1833,10 +1823,10 @@ static void ath_tx_complete(struct ath_s SC_OP_WAIT_FOR_TX_ACK)); } - if (frame_type == ATH9K_NOT_INTERNAL) - ieee80211_tx_status(hw, skb); - else + if (unlikely(tx_info->driver_flags & ATH_TX_INFO_FRAME_TYPE_INTERNAL)) ath9k_tx_status(hw, skb); + else + ieee80211_tx_status(hw, skb); } static void ath_tx_complete_buf(struct ath_softc *sc, struct ath_buf *bf, @@ -1859,7 +1849,7 @@ static void ath_tx_complete_buf(struct a } dma_unmap_single(sc->dev, bf->bf_dmacontext, skb->len, DMA_TO_DEVICE); - ath_tx_complete(sc, skb, tx_flags); + ath_tx_complete(sc, skb, bf->aphy, tx_flags); ath_debug_stat_tx(sc, txq, bf); /* @@ -1907,8 +1897,7 @@ static void ath_tx_rc_status(struct ath_ struct sk_buff *skb = bf->bf_mpdu; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); - struct ath_tx_info_priv *tx_info_priv = ATH_TX_INFO_PRIV(tx_info); - struct ieee80211_hw *hw = tx_info_priv->aphy->hw; + struct ieee80211_hw *hw = bf->aphy->hw; u8 i, tx_rateindex; if (txok) @@ -1917,17 +1906,22 @@ static void ath_tx_rc_status(struct ath_ tx_rateindex = ds->ds_txstat.ts_rateindex; WARN_ON(tx_rateindex >= hw->max_rates); - tx_info_priv->update_rc = update_rc; + if (update_rc) + tx_info->driver_flags |= ATH_TX_INFO_UPDATE_RC; if (ds->ds_txstat.ts_status & ATH9K_TXERR_FILT) tx_info->flags |= IEEE80211_TX_STAT_TX_FILTERED; if ((ds->ds_txstat.ts_status & ATH9K_TXERR_FILT) == 0 && (bf->bf_flags & ATH9K_TXDESC_NOACK) == 0 && update_rc) { if (ieee80211_is_data(hdr->frame_control)) { - memcpy(&tx_info_priv->tx, &ds->ds_txstat, - sizeof(tx_info_priv->tx)); - tx_info_priv->n_frames = bf->bf_nframes; - tx_info_priv->n_bad_frames = nbad; + if (ds->ds_txstat.ts_flags & + (ATH9K_TX_DATA_UNDERRUN | ATH9K_TX_DELIM_UNDERRUN)) + tx_info->driver_flags |= ATH_TX_INFO_UNDERRUN; + if ((ds->ds_txstat.ts_status & ATH9K_TXERR_XRETRY) || + (ds->ds_txstat.ts_status & ATH9K_TXERR_FIFO)) + tx_info->driver_flags |= ATH_TX_INFO_XRETRY; + tx_info->status.ampdu_len = bf->bf_nframes; + tx_info->status.ampdu_ack_len = bf->bf_nframes - nbad; } } --- a/drivers/net/wireless/ath/ath9k/debug.c +++ b/drivers/net/wireless/ath/ath9k/debug.c @@ -257,14 +257,17 @@ static const struct file_operations fops void ath_debug_stat_rc(struct ath_softc *sc, struct sk_buff *skb) { - struct ath_tx_info_priv *tx_info_priv = NULL; struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); struct ieee80211_tx_rate *rates = tx_info->status.rates; - int final_ts_idx, idx; + int final_ts_idx = 0, idx, i; struct ath_rc_stats *stats; - tx_info_priv = ATH_TX_INFO_PRIV(tx_info); - final_ts_idx = tx_info_priv->tx.ts_rateindex; + for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { + if (!rates[i].count) + break; + + final_ts_idx = i; + } idx = rates[final_ts_idx].idx; stats = &sc->debug.stats.rcstats[idx]; stats->success++; --- a/drivers/net/wireless/ath/ath9k/rc.c +++ b/drivers/net/wireless/ath/ath9k/rc.c @@ -859,12 +859,12 @@ static void ath_get_rate(void *priv, str static bool ath_rc_update_per(struct ath_softc *sc, const struct ath_rate_table *rate_table, struct ath_rate_priv *ath_rc_priv, - struct ath_tx_info_priv *tx_info_priv, + struct ieee80211_tx_info *tx_info, int tx_rate, int xretries, int retries, u32 now_msec) { bool state_change = false; - int count; + int count, n_bad_frames; u8 last_per; static u32 nretry_to_per_lookup[10] = { 100 * 0 / 1, @@ -880,6 +880,7 @@ static bool ath_rc_update_per(struct ath }; last_per = ath_rc_priv->per[tx_rate]; + n_bad_frames = tx_info->status.ampdu_len - tx_info->status.ampdu_ack_len; if (xretries) { if (xretries == 1) { @@ -907,7 +908,7 @@ static bool ath_rc_update_per(struct ath if (retries >= count) retries = count - 1; - if (tx_info_priv->n_bad_frames) { + if (n_bad_frames) { /* new_PER = 7/8*old_PER + 1/8*(currentPER) * Assuming that n_frames is not 0. The current PER * from the retries is 100 * retries / (retries+1), @@ -920,14 +921,14 @@ static bool ath_rc_update_per(struct ath * the above PER. The expression below is a * simplified version of the sum of these two terms. */ - if (tx_info_priv->n_frames > 0) { - int n_frames, n_bad_frames; + if (tx_info->status.ampdu_len > 0) { + int n_frames, n_bad_tries; u8 cur_per, new_per; - n_bad_frames = retries * tx_info_priv->n_frames + - tx_info_priv->n_bad_frames; - n_frames = tx_info_priv->n_frames * (retries + 1); - cur_per = (100 * n_bad_frames / n_frames) >> 3; + n_bad_tries = retries * tx_info->status.ampdu_len + + n_bad_frames; + n_frames = tx_info->status.ampdu_len * (retries + 1); + cur_per = (100 * n_bad_tries / n_frames) >> 3; new_per = (u8)(last_per - (last_per >> 3) + cur_per); ath_rc_priv->per[tx_rate] = new_per; } @@ -943,8 +944,7 @@ static bool ath_rc_update_per(struct ath * this was a probe. Otherwise, ignore the probe. */ if (ath_rc_priv->probe_rate && ath_rc_priv->probe_rate == tx_rate) { - if (retries > 0 || 2 * tx_info_priv->n_bad_frames > - tx_info_priv->n_frames) { + if (retries > 0 || 2 * n_bad_frames > tx_info->status.ampdu_len) { /* * Since we probed with just a single attempt, * any retries means the probe failed. Also, @@ -1003,7 +1003,7 @@ static bool ath_rc_update_per(struct ath static void ath_rc_update_ht(struct ath_softc *sc, struct ath_rate_priv *ath_rc_priv, - struct ath_tx_info_priv *tx_info_priv, + struct ieee80211_tx_info *tx_info, int tx_rate, int xretries, int retries) { u32 now_msec = jiffies_to_msecs(jiffies); @@ -1020,7 +1020,7 @@ static void ath_rc_update_ht(struct ath_ /* Update PER first */ state_change = ath_rc_update_per(sc, rate_table, ath_rc_priv, - tx_info_priv, tx_rate, xretries, + tx_info, tx_rate, xretries, retries, now_msec); /* @@ -1098,7 +1098,6 @@ static void ath_rc_tx_status(struct ath_ struct ieee80211_tx_info *tx_info, int final_ts_idx, int xretries, int long_retry) { - struct ath_tx_info_priv *tx_info_priv = ATH_TX_INFO_PRIV(tx_info); const struct ath_rate_table *rate_table; struct ieee80211_tx_rate *rates = tx_info->status.rates; u8 flags; @@ -1124,9 +1123,8 @@ static void ath_rc_tx_status(struct ath_ return; rix = ath_rc_get_rateindex(rate_table, &rates[i]); - ath_rc_update_ht(sc, ath_rc_priv, - tx_info_priv, rix, - xretries ? 1 : 2, + ath_rc_update_ht(sc, ath_rc_priv, tx_info, + rix, xretries ? 1 : 2, rates[i].count); } } @@ -1149,8 +1147,7 @@ static void ath_rc_tx_status(struct ath_ return; rix = ath_rc_get_rateindex(rate_table, &rates[i]); - ath_rc_update_ht(sc, ath_rc_priv, tx_info_priv, rix, - xretries, long_retry); + ath_rc_update_ht(sc, ath_rc_priv, tx_info, rix, xretries, long_retry); } static const @@ -1301,23 +1298,30 @@ static void ath_tx_status(void *priv, st { struct ath_softc *sc = priv; struct ath_rate_priv *ath_rc_priv = priv_sta; - struct ath_tx_info_priv *tx_info_priv = NULL; struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); struct ieee80211_hdr *hdr; - int final_ts_idx, tx_status = 0, is_underrun = 0; + int final_ts_idx = 0, tx_status = 0, is_underrun = 0; + int long_retry = 0; __le16 fc; + int i; hdr = (struct ieee80211_hdr *)skb->data; fc = hdr->frame_control; - tx_info_priv = ATH_TX_INFO_PRIV(tx_info); - final_ts_idx = tx_info_priv->tx.ts_rateindex; + for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { + struct ieee80211_tx_rate *rate = &tx_info->status.rates[i]; + if (!rate->count) + break; + + final_ts_idx = i; + long_retry = rate->count - 1; + } if (!priv_sta || !ieee80211_is_data(fc) || - !tx_info_priv->update_rc) - goto exit; + !(tx_info->driver_flags & ATH_TX_INFO_UPDATE_RC)) + return; - if (tx_info_priv->tx.ts_status & ATH9K_TXERR_FILT) - goto exit; + if (tx_info->flags & IEEE80211_TX_STAT_TX_FILTERED) + return; /* * If underrun error is seen assume it as an excessive retry only @@ -1325,20 +1329,17 @@ static void ath_tx_status(void *priv, st * Adjust the long retry as if the frame was tried hw->max_rate_tries * times. This affects how ratectrl updates PER for the failed rate. */ - if (tx_info_priv->tx.ts_flags & - (ATH9K_TX_DATA_UNDERRUN | ATH9K_TX_DELIM_UNDERRUN) && - ((sc->sc_ah->tx_trig_level) >= ath_rc_priv->tx_triglevel_max)) { + if ((tx_info->driver_flags & ATH_TX_INFO_UNDERRUN) && + (sc->sc_ah->tx_trig_level >= ath_rc_priv->tx_triglevel_max)) { tx_status = 1; is_underrun = 1; } - if ((tx_info_priv->tx.ts_status & ATH9K_TXERR_XRETRY) || - (tx_info_priv->tx.ts_status & ATH9K_TXERR_FIFO)) + if (tx_info->driver_flags & ATH_TX_INFO_XRETRY) tx_status = 1; ath_rc_tx_status(sc, ath_rc_priv, tx_info, final_ts_idx, tx_status, - (is_underrun) ? sc->hw->max_rate_tries : - tx_info_priv->tx.ts_longretry); + (is_underrun) ? sc->hw->max_rate_tries : long_retry); /* Check if aggregation has to be enabled for this tid */ if (conf_is_ht(&sc->hw->conf) && @@ -1357,8 +1358,6 @@ static void ath_tx_status(void *priv, st } ath_debug_stat_rc(sc, skb); -exit: - kfree(tx_info_priv); } static void ath_rate_init(void *priv, struct ieee80211_supported_band *sband,