From a8efee4f4740c61fccaf73608df282c4ee24ae86 Mon Sep 17 00:00:00 2001 From: Sujith Date: Tue, 18 Nov 2008 09:07:30 +0530 Subject: [PATCH] ath9k: Use rate_driver_data Remove the hack using vif, and use rate_driver_data within skb->cb to hold driver specific rate information. Setup the rate series in the skb's tx control area and remove all references to ath9k specific rate series ( using struct ath_rc_series ). Signed-off-by: Sujith Signed-off-by: John W. Linville --- drivers/net/wireless/ath9k/core.h | 1 - drivers/net/wireless/ath9k/main.c | 9 +- drivers/net/wireless/ath9k/rc.c | 145 +++++++++++--------------- drivers/net/wireless/ath9k/rc.h | 17 ---- drivers/net/wireless/ath9k/xmit.c | 162 ++++++++---------------------- 5 files changed, 108 insertions(+), 226 deletions(-) diff --git a/drivers/net/wireless/ath9k/core.h b/drivers/net/wireless/ath9k/core.h index cf2d9410b3dd..255f860b2719 100644 --- a/drivers/net/wireless/ath9k/core.h +++ b/drivers/net/wireless/ath9k/core.h @@ -203,7 +203,6 @@ struct ath_buf_state { int bfs_seqno; /* sequence number */ int bfs_tidno; /* tid of this frame */ int bfs_retries; /* current retries */ - struct ath_rc_series bfs_rcs[4]; /* rate series */ u32 bf_type; /* BUF_* (enum buffer_type) */ /* key type use to encrypt this frame */ u32 bfs_keyix; diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c index ca7809836c33..11d7bee2fda0 100644 --- a/drivers/net/wireless/ath9k/main.c +++ b/drivers/net/wireless/ath9k/main.c @@ -350,13 +350,12 @@ void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb, DPRINTF(sc, ATH_DBG_XMIT, "%s: TX complete: skb: %p\n", __func__, skb); - ieee80211_tx_info_clear_status(tx_info); if (tx_info->flags & IEEE80211_TX_CTL_NO_ACK || tx_info->flags & IEEE80211_TX_STAT_TX_FILTERED) { - /* free driver's private data area of tx_info, XXX: HACK! */ - if (tx_info->control.vif != NULL) - kfree(tx_info->control.vif); - tx_info->control.vif = NULL; + if (tx_info->rate_driver_data[0] != NULL) { + kfree(tx_info->rate_driver_data[0]); + tx_info->rate_driver_data[0] = NULL; + } } if (tx_status->flags & ATH_TX_BAR) { diff --git a/drivers/net/wireless/ath9k/rc.c b/drivers/net/wireless/ath9k/rc.c index 59c146cdd0db..156b245ab9e4 100644 --- a/drivers/net/wireless/ath9k/rc.c +++ b/drivers/net/wireless/ath9k/rc.c @@ -805,22 +805,22 @@ static u8 ath_rc_ratefind_ht(struct ath_softc *sc, } static void ath_rc_rate_set_series(struct ath_rate_table *rate_table , - struct ath_rc_series *series, + struct ieee80211_tx_rate *rate, u8 tries, u8 rix, int rtsctsenable) { - series->tries = tries; - series->flags = (rtsctsenable ? ATH_RC_RTSCTS_FLAG : 0) | - (WLAN_RC_PHY_DS(rate_table->info[rix].phy) ? - ATH_RC_DS_FLAG : 0) | - (WLAN_RC_PHY_40(rate_table->info[rix].phy) ? - ATH_RC_CW40_FLAG : 0) | - (WLAN_RC_PHY_SGI(rate_table->info[rix].phy) ? - ATH_RC_SGI_FLAG : 0); - - series->rix = rate_table->info[rix].base_index; - series->max_4ms_framelen = rate_table->info[rix].max_4ms_framelen; + rate->count = tries; + rate->idx = rix; + + if (rtsctsenable) + rate->flags |= IEEE80211_TX_RC_USE_RTS_CTS; + if (WLAN_RC_PHY_40(rate_table->info[rix].phy)) + rate->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH; + if (WLAN_RC_PHY_SGI(rate_table->info[rix].phy)) + rate->flags |= IEEE80211_TX_RC_SHORT_GI; + if (WLAN_RC_PHY_HT(rate_table->info[rix].phy)) + rate->flags |= IEEE80211_TX_RC_MCS; } static u8 ath_rc_rate_getidx(struct ath_softc *sc, @@ -855,11 +855,12 @@ static u8 ath_rc_rate_getidx(struct ath_softc *sc, static void ath_rc_ratefind(struct ath_softc *sc, struct ath_rate_node *ath_rc_priv, int num_tries, int num_rates, unsigned int rcflag, - struct ath_rc_series series[], int *is_probe, + struct ieee80211_tx_info *tx_info, int *is_probe, int is_retry) { u8 try_per_rate = 0, i = 0, rix, nrix; struct ath_rate_table *rate_table; + struct ieee80211_tx_rate *rates = tx_info->control.rates; rate_table = sc->hw_rate_table[sc->sc_curmode]; rix = ath_rc_ratefind_ht(sc, ath_rc_priv, rate_table, @@ -871,7 +872,7 @@ static void ath_rc_ratefind(struct ath_softc *sc, /* set one try for probe rates. For the * probes don't enable rts */ ath_rc_rate_set_series(rate_table, - &series[i++], 1, nrix, FALSE); + &rates[i++], 1, nrix, FALSE); try_per_rate = (num_tries/num_rates); /* Get the next tried/allowed rate. No RTS for the next series @@ -880,12 +881,12 @@ static void ath_rc_ratefind(struct ath_softc *sc, nrix = ath_rc_rate_getidx(sc, ath_rc_priv, rate_table, nrix, 1, FALSE); ath_rc_rate_set_series(rate_table, - &series[i++], try_per_rate, nrix, 0); + &rates[i++], try_per_rate, nrix, 0); } else { try_per_rate = (num_tries/num_rates); /* Set the choosen rate. No RTS for first series entry. */ ath_rc_rate_set_series(rate_table, - &series[i++], try_per_rate, nrix, FALSE); + &rates[i++], try_per_rate, nrix, FALSE); } /* Fill in the other rates for multirate retry */ @@ -902,7 +903,7 @@ static void ath_rc_ratefind(struct ath_softc *sc, rate_table, nrix, 1, min_rate); /* All other rates in the series have RTS enabled */ ath_rc_rate_set_series(rate_table, - &series[i], try_num, nrix, TRUE); + &rates[i], try_num, nrix, TRUE); } /* @@ -928,9 +929,8 @@ static void ath_rc_ratefind(struct ath_softc *sc, if (i == 4 && ((dot11rate == 2 && phy == WLAN_RC_PHY_HT_40_SS) || (dot11rate == 3 && phy == WLAN_RC_PHY_HT_20_SS))) { - series[3].rix = series[2].rix; - series[3].flags = series[2].flags; - series[3].max_4ms_framelen = series[2].max_4ms_framelen; + rates[3].idx = rates[2].idx; + rates[3].flags = rates[2].flags; } } } @@ -943,7 +943,7 @@ static void ath_rate_findrate(struct ath_softc *sc, int num_tries, int num_rates, unsigned int rcflag, - struct ath_rc_series series[], + struct ieee80211_tx_info *tx_info, int *is_probe, int is_retry) { @@ -951,7 +951,7 @@ static void ath_rate_findrate(struct ath_softc *sc, return; ath_rc_ratefind(sc, ath_rc_priv, num_tries, num_rates, - rcflag, series, is_probe, is_retry); + rcflag, tx_info, is_probe, is_retry); } static void ath_rc_update_ht(struct ath_softc *sc, @@ -1283,17 +1283,17 @@ static void ath_rc_update_ht(struct ath_softc *sc, */ static void ath_rc_update(struct ath_softc *sc, struct ath_rate_node *ath_rc_priv, - struct ath_tx_info_priv *info_priv, int final_ts_idx, + struct ieee80211_tx_info *tx_info, int final_ts_idx, int xretries, int long_retry) { + struct ath_tx_info_priv *info_priv = + (struct ath_tx_info_priv *)tx_info->rate_driver_data[0]; struct ath_rate_table *rate_table; - struct ath_rc_series rcs[4]; + struct ieee80211_tx_rate *rates = tx_info->status.rates; u8 flags; u32 series = 0, rix; - memcpy(rcs, info_priv->rcs, 4 * sizeof(rcs[0])); rate_table = sc->hw_rate_table[sc->sc_curmode]; - ASSERT(rcs[0].tries != 0); /* * If the first rate is not the final index, there @@ -1302,31 +1302,31 @@ static void ath_rc_update(struct ath_softc *sc, if (final_ts_idx != 0) { /* Process intermediate rates that failed.*/ for (series = 0; series < final_ts_idx ; series++) { - if (rcs[series].tries != 0) { - flags = rcs[series].flags; + if (rates[series].count != 0) { + flags = rates[series].flags; /* If HT40 and we have switched mode from * 40 to 20 => don't update */ - if ((flags & ATH_RC_CW40_FLAG) && + if ((flags & IEEE80211_TX_RC_40_MHZ_WIDTH) && (ath_rc_priv->rc_phy_mode != - (flags & ATH_RC_CW40_FLAG))) + (flags & IEEE80211_TX_RC_40_MHZ_WIDTH))) return; - if ((flags & ATH_RC_CW40_FLAG) && - (flags & ATH_RC_SGI_FLAG)) + if ((flags & IEEE80211_TX_RC_40_MHZ_WIDTH) && + (flags & IEEE80211_TX_RC_SHORT_GI)) rix = rate_table->info[ - rcs[series].rix].ht_index; - else if (flags & ATH_RC_SGI_FLAG) + rates[series].idx].ht_index; + else if (flags & IEEE80211_TX_RC_SHORT_GI) rix = rate_table->info[ - rcs[series].rix].sgi_index; - else if (flags & ATH_RC_CW40_FLAG) + rates[series].idx].sgi_index; + else if (flags & IEEE80211_TX_RC_40_MHZ_WIDTH) rix = rate_table->info[ - rcs[series].rix].cw40index; + rates[series].idx].cw40index; else rix = rate_table->info[ - rcs[series].rix].base_index; + rates[series].idx].base_index; ath_rc_update_ht(sc, ath_rc_priv, info_priv, rix, xretries ? 1 : 2, - rcs[series].tries); + rates[series].count); } } } else { @@ -1336,24 +1336,24 @@ static void ath_rc_update(struct ath_softc *sc, * Treating it as an excessive retry penalizes the rate * inordinately. */ - if (rcs[0].tries == 1 && xretries == 1) + if (rates[0].count == 1 && xretries == 1) xretries = 2; } - flags = rcs[series].flags; + flags = rates[series].flags; /* If HT40 and we have switched mode from 40 to 20 => don't update */ - if ((flags & ATH_RC_CW40_FLAG) && - (ath_rc_priv->rc_phy_mode != (flags & ATH_RC_CW40_FLAG))) + if ((flags & IEEE80211_TX_RC_40_MHZ_WIDTH) && + (ath_rc_priv->rc_phy_mode != (flags & IEEE80211_TX_RC_40_MHZ_WIDTH))) return; - if ((flags & ATH_RC_CW40_FLAG) && (flags & ATH_RC_SGI_FLAG)) - rix = rate_table->info[rcs[series].rix].ht_index; - else if (flags & ATH_RC_SGI_FLAG) - rix = rate_table->info[rcs[series].rix].sgi_index; - else if (flags & ATH_RC_CW40_FLAG) - rix = rate_table->info[rcs[series].rix].cw40index; + if ((flags & IEEE80211_TX_RC_40_MHZ_WIDTH) && (flags & IEEE80211_TX_RC_SHORT_GI)) + rix = rate_table->info[rates[series].idx].ht_index; + else if (flags & IEEE80211_TX_RC_SHORT_GI) + rix = rate_table->info[rates[series].idx].sgi_index; + else if (flags & IEEE80211_TX_RC_40_MHZ_WIDTH) + rix = rate_table->info[rates[series].idx].cw40index; else - rix = rate_table->info[rcs[series].rix].base_index; + rix = rate_table->info[rates[series].idx].base_index; ath_rc_update_ht(sc, ath_rc_priv, info_priv, rix, xretries, long_retry); @@ -1365,8 +1365,10 @@ static void ath_rc_update(struct ath_softc *sc, static void ath_rate_tx_complete(struct ath_softc *sc, struct ath_node *an, struct ath_rate_node *rc_priv, - struct ath_tx_info_priv *info_priv) + struct ieee80211_tx_info *tx_info) { + struct ath_tx_info_priv *info_priv = + (struct ath_tx_info_priv *)tx_info->rate_driver_data[0]; int final_ts_idx = info_priv->tx.ts_rateindex; int tx_status = 0, is_underrun = 0; @@ -1395,7 +1397,7 @@ static void ath_rate_tx_complete(struct ath_softc *sc, (info_priv->tx.ts_status & ATH9K_TXERR_FIFO)) tx_status = 1; - ath_rc_update(sc, rc_priv, info_priv, final_ts_idx, tx_status, + ath_rc_update(sc, rc_priv, tx_info, final_ts_idx, tx_status, (is_underrun) ? ATH_11N_TXMAXTRY : info_priv->tx.ts_longretry); } @@ -1507,8 +1509,7 @@ static void ath_tx_status(void *priv, struct ieee80211_supported_band *sband, hdr = (struct ieee80211_hdr *)skb->data; fc = hdr->frame_control; - /* XXX: UGLY HACK!! */ - tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif; + tx_info_priv = (struct ath_tx_info_priv *)tx_info->rate_driver_data[0]; an = (struct ath_node *)sta->drv_priv; @@ -1516,10 +1517,9 @@ static void ath_tx_status(void *priv, struct ieee80211_supported_band *sband, return; if (an && priv_sta && ieee80211_is_data(fc)) - ath_rate_tx_complete(sc, an, priv_sta, tx_info_priv); + ath_rate_tx_complete(sc, an, priv_sta, tx_info); kfree(tx_info_priv); - tx_info->control.vif = NULL; } static void ath_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta, @@ -1530,28 +1530,18 @@ static void ath_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta, struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; struct ath_softc *sc = priv; struct ieee80211_hw *hw = sc->hw; - struct ath_tx_info_priv *tx_info_priv; struct ath_rate_node *ath_rc_priv = priv_sta; struct ath_node *an; struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); int is_probe = FALSE; - s8 lowest_idx; __le16 fc = hdr->frame_control; u8 *qc, tid; - DPRINTF(sc, ATH_DBG_RATE, "%s\n", __func__); - - /* allocate driver private area of tx_info, XXX: UGLY HACK! */ - tx_info->control.vif = kzalloc(sizeof(*tx_info_priv), GFP_ATOMIC); - tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif; - ASSERT(tx_info_priv != NULL); - - lowest_idx = rate_lowest_index(sband, sta); - tx_info_priv->min_rate = (sband->bitrates[lowest_idx].bitrate * 2) / 10; /* lowest rate for management and multicast/broadcast frames */ - if (!ieee80211_is_data(fc) || - is_multicast_ether_addr(hdr->addr1) || !sta) { - tx_info->control.rates[0].idx = lowest_idx; + if (!ieee80211_is_data(fc) || is_multicast_ether_addr(hdr->addr1)) { + tx_info->control.rates[0].idx = rate_lowest_index(sband, sta); + tx_info->control.rates[0].count = + is_multicast_ether_addr(hdr->addr1) ? 1 : ATH_MGT_TXMAXTRY; return; } @@ -1559,24 +1549,11 @@ static void ath_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta, ath_rate_findrate(sc, ath_rc_priv, ATH_11N_TXMAXTRY, 4, ATH_RC_PROBE_ALLOWED, - tx_info_priv->rcs, + tx_info, &is_probe, false); -#if 0 - if (is_probe) - sel->probe_idx = ath_rc_priv->tx_ratectrl.probe_rate; -#endif - - /* Ratecontrol sometimes returns invalid rate index */ - if (tx_info_priv->rcs[0].rix != 0xff) - ath_rc_priv->prev_data_rix = tx_info_priv->rcs[0].rix; - else - tx_info_priv->rcs[0].rix = ath_rc_priv->prev_data_rix; - - tx_info->control.rates[0].idx = tx_info_priv->rcs[0].rix; /* Check if aggregation has to be enabled for this tid */ - if (hw->conf.ht.enabled) { if (ieee80211_is_data_qos(fc)) { qc = ieee80211_get_qos_ctl(hdr); diff --git a/drivers/net/wireless/ath9k/rc.h b/drivers/net/wireless/ath9k/rc.h index 30248de5b2b6..3324bed3f0ac 100644 --- a/drivers/net/wireless/ath9k/rc.h +++ b/drivers/net/wireless/ath9k/rc.h @@ -169,20 +169,6 @@ struct ath_rate_table { #define ATH_RC_PROBE_ALLOWED 0x00000001 #define ATH_RC_MINRATE_LASTRATE 0x00000002 -struct ath_rc_series { - u8 rix; - u8 tries; - u8 flags; - u32 max_4ms_framelen; -}; - -/* rcs_flags definition */ -#define ATH_RC_DS_FLAG 0x01 -#define ATH_RC_CW40_FLAG 0x02 /* CW 40 */ -#define ATH_RC_SGI_FLAG 0x04 /* Short Guard Interval */ -#define ATH_RC_HT_FLAG 0x08 /* HT */ -#define ATH_RC_RTSCTS_FLAG 0x10 /* RTS-CTS */ - /* * State structures for new rate adaptation code */ @@ -259,13 +245,10 @@ struct ath_rate_node { struct ath_rate_softc *asc; }; -/* Driver data of ieee80211_tx_info */ struct ath_tx_info_priv { - struct ath_rc_series rcs[4]; struct ath_tx_status tx; int n_frames; int n_bad_frames; - u8 min_rate; }; void ath_rate_attach(struct ath_softc *sc); diff --git a/drivers/net/wireless/ath9k/xmit.c b/drivers/net/wireless/ath9k/xmit.c index 44735b6d9f04..baf5cb9d967e 100644 --- a/drivers/net/wireless/ath9k/xmit.c +++ b/drivers/net/wireless/ath9k/xmit.c @@ -102,23 +102,6 @@ static void ath_tx_txqaddbuf(struct ath_softc *sc, struct ath_txq *txq, ath9k_hw_txstart(ah, txq->axq_qnum); } -/* Get transmit rate index using rate in Kbps */ - -static int ath_tx_findindex(const struct ath9k_rate_table *rt, int rate) -{ - int i; - int ndx = 0; - - for (i = 0; i < rt->rateCount; i++) { - if (rt->info[i].rateKbps == rate) { - ndx = i; - break; - } - } - - return ndx; -} - /* Check if it's okay to send out aggregates */ static int ath_aggr_query(struct ath_softc *sc, struct ath_node *an, u8 tidno) @@ -158,26 +141,23 @@ static enum ath9k_pkt_type get_hw_packet_type(struct sk_buff *skb) return htype; } -static bool check_min_rate(struct sk_buff *skb) +static bool is_pae(struct sk_buff *skb) { struct ieee80211_hdr *hdr; - bool use_minrate = false; __le16 fc; hdr = (struct ieee80211_hdr *)skb->data; fc = hdr->frame_control; - if (ieee80211_is_mgmt(fc) || ieee80211_is_ctl(fc)) { - use_minrate = true; - } else if (ieee80211_is_data(fc)) { + if (ieee80211_is_data(fc)) { if (ieee80211_is_nullfunc(fc) || /* Port Access Entity (IEEE 802.1X) */ (skb->protocol == cpu_to_be16(ETH_P_PAE))) { - use_minrate = true; + return true; } } - return use_minrate; + return false; } static int get_hw_crypto_keytype(struct sk_buff *skb) @@ -199,50 +179,19 @@ static int get_hw_crypto_keytype(struct sk_buff *skb) static void setup_rate_retries(struct ath_softc *sc, struct sk_buff *skb) { struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); - struct ath_tx_info_priv *tx_info_priv; - struct ath_rc_series *rcs; + struct ieee80211_tx_rate *rates = tx_info->control.rates; struct ieee80211_hdr *hdr; - const struct ath9k_rate_table *rt; - bool use_minrate; __le16 fc; - u8 rix; - - rt = sc->sc_currates; - BUG_ON(!rt); hdr = (struct ieee80211_hdr *)skb->data; fc = hdr->frame_control; - tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif; /* HACK */ - rcs = tx_info_priv->rcs; - - /* Check if min rates have to be used */ - use_minrate = check_min_rate(skb); - - if (ieee80211_is_data(fc) && !use_minrate) { - if (is_multicast_ether_addr(hdr->addr1)) { - rcs[0].rix = - ath_tx_findindex(rt, tx_info_priv->min_rate); - /* mcast packets are not re-tried */ - rcs[0].tries = 1; - } - } else { - /* for management and control frames, - or for NULL and EAPOL frames */ - if (use_minrate) - rcs[0].rix = ath_rate_findrateix(sc, tx_info_priv->min_rate); - else - rcs[0].rix = 0; - rcs[0].tries = ATH_MGT_TXMAXTRY; - } - - rix = rcs[0].rix; if (ieee80211_has_morefrags(fc) || (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG)) { - rcs[1].tries = rcs[2].tries = rcs[3].tries = 0; - rcs[1].rix = rcs[2].rix = rcs[3].rix = 0; + rates[1].count = rates[2].count = rates[3].count = 0; + rates[1].idx = rates[2].idx = rates[3].idx = 0; /* reset tries but keep rate index */ - rcs[0].tries = ATH_TXMAXTRY; + rates[0].count = ATH_TXMAXTRY; } } @@ -274,7 +223,7 @@ static void assign_aggr_tid_seqno(struct sk_buff *skb, /* Get seqno */ - if (ieee80211_is_data(fc) && !check_min_rate(skb)) { + if (ieee80211_is_data(fc) && !is_pae(skb)) { /* For HT capable stations, we save tidno for later use. * We also override seqno set by upper layer with the one * in tx aggregation state. @@ -573,9 +522,11 @@ static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf) struct ath_node *an = NULL; struct sk_buff *skb; struct ieee80211_tx_info *tx_info; + struct ieee80211_tx_rate *rates; skb = (struct sk_buff *)bf->bf_mpdu; tx_info = IEEE80211_SKB_CB(skb); + rates = tx_info->rate_driver_data[0]; if (tx_info->control.sta) an = (struct ath_node *)tx_info->control.sta->drv_priv; @@ -584,9 +535,9 @@ static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf) * get the cix for the lowest valid rix. */ rt = sc->sc_currates; - for (i = 4; i--;) { - if (bf->bf_rcs[i].tries) { - rix = bf->bf_rcs[i].rix; + for (i = 3; i >= 0; i--) { + if (rates[i].count) { + rix = rates[i].idx; break; } } @@ -662,27 +613,27 @@ static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf) memset(series, 0, sizeof(struct ath9k_11n_rate_series) * 4); for (i = 0; i < 4; i++) { - if (!bf->bf_rcs[i].tries) + if (!rates[i].count) continue; - rix = bf->bf_rcs[i].rix; + rix = rates[i].idx; series[i].Rate = rt->info[rix].rateCode | (bf_isshpreamble(bf) ? rt->info[rix].shortPreamble : 0); - series[i].Tries = bf->bf_rcs[i].tries; + series[i].Tries = rates[i].count; series[i].RateFlags = ( - (bf->bf_rcs[i].flags & ATH_RC_RTSCTS_FLAG) ? + (rates[i].flags & IEEE80211_TX_RC_USE_RTS_CTS) ? ATH9K_RATESERIES_RTS_CTS : 0) | - ((bf->bf_rcs[i].flags & ATH_RC_CW40_FLAG) ? + ((rates[i].flags & IEEE80211_TX_RC_40_MHZ_WIDTH) ? ATH9K_RATESERIES_2040 : 0) | - ((bf->bf_rcs[i].flags & ATH_RC_SGI_FLAG) ? + ((rates[i].flags & IEEE80211_TX_RC_SHORT_GI) ? ATH9K_RATESERIES_HALFGI : 0); series[i].PktDuration = ath_pkt_duration(sc, rix, bf, - (bf->bf_rcs[i].flags & ATH_RC_CW40_FLAG) != 0, - (bf->bf_rcs[i].flags & ATH_RC_SGI_FLAG), + (rates[i].flags & IEEE80211_TX_RC_40_MHZ_WIDTH) != 0, + (rates[i].flags & IEEE80211_TX_RC_SHORT_GI), bf_isshpreamble(bf)); if (bf_isht(bf) && an) @@ -718,22 +669,12 @@ static int ath_tx_send_normal(struct ath_softc *sc, struct list_head *bf_head) { struct ath_buf *bf; - struct sk_buff *skb; - struct ieee80211_tx_info *tx_info; - struct ath_tx_info_priv *tx_info_priv; BUG_ON(list_empty(bf_head)); bf = list_first_entry(bf_head, struct ath_buf, list); bf->bf_state.bf_type &= ~BUF_AMPDU; /* regular HT frame */ - skb = (struct sk_buff *)bf->bf_mpdu; - tx_info = IEEE80211_SKB_CB(skb); - - /* XXX: HACK! */ - tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif; - memcpy(bf->bf_rcs, tx_info_priv->rcs, 4 * sizeof(tx_info_priv->rcs[0])); - /* update starting sequence number for subsequent ADDBA request */ INCR(tid->seq_start, IEEE80211_SEQ_MAX); @@ -1124,8 +1065,8 @@ static int ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq) skb = bf->bf_mpdu; tx_info = IEEE80211_SKB_CB(skb); - /* XXX: HACK! */ - tx_info_priv = (struct ath_tx_info_priv *) tx_info->control.vif; + tx_info_priv = + (struct ath_tx_info_priv *)tx_info->rate_driver_data[0]; 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 && @@ -1268,9 +1209,6 @@ static int ath_tx_send_ampdu(struct ath_softc *sc, struct ath_tx_control *txctl) { struct ath_buf *bf; - struct sk_buff *skb; - struct ieee80211_tx_info *tx_info; - struct ath_tx_info_priv *tx_info_priv; BUG_ON(list_empty(bf_head)); @@ -1296,12 +1234,6 @@ static int ath_tx_send_ampdu(struct ath_softc *sc, return 0; } - skb = (struct sk_buff *)bf->bf_mpdu; - tx_info = IEEE80211_SKB_CB(skb); - /* XXX: HACK! */ - tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif; - memcpy(bf->bf_rcs, tx_info_priv->rcs, 4 * sizeof(tx_info_priv->rcs[0])); - /* Add sub-frame to BAW */ ath_tx_addto_baw(sc, tid, bf); @@ -1323,9 +1255,11 @@ static u32 ath_lookup_rate(struct ath_softc *sc, struct ath_buf *bf, struct ath_atx_tid *tid) { + struct ath_rate_table *rate_table = sc->hw_rate_table[sc->sc_curmode]; const struct ath9k_rate_table *rt = sc->sc_currates; 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, frame_length; u16 aggr_limit, legacy = 0, maxampdu; @@ -1333,10 +1267,9 @@ static u32 ath_lookup_rate(struct ath_softc *sc, skb = (struct sk_buff *)bf->bf_mpdu; tx_info = IEEE80211_SKB_CB(skb); - tx_info_priv = (struct ath_tx_info_priv *) - tx_info->control.vif; /* XXX: HACK! */ - memcpy(bf->bf_rcs, - tx_info_priv->rcs, 4 * sizeof(tx_info_priv->rcs[0])); + 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 @@ -1346,14 +1279,14 @@ static u32 ath_lookup_rate(struct ath_softc *sc, max_4ms_framelen = ATH_AMPDU_LIMIT_MAX; for (i = 0; i < 4; i++) { - if (bf->bf_rcs[i].tries) { - frame_length = bf->bf_rcs[i].max_4ms_framelen; - - if (rt->info[bf->bf_rcs[i].rix].phy != PHY_HT) { + if (rates[i].count) { + if (rt->info[rates[i].idx].phy != PHY_HT) { legacy = 1; break; } + frame_length = + rate_table->info[rates[i].idx].max_4ms_framelen; max_4ms_framelen = min(max_4ms_framelen, frame_length); } } @@ -1393,6 +1326,8 @@ static int ath_compute_num_delims(struct ath_softc *sc, u16 frmlen) { const struct ath9k_rate_table *rt = sc->sc_currates; + struct sk_buff *skb = bf->bf_mpdu; + struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); u32 nsymbits, nsymbols, mpdudensity; u16 minlen; u8 rc, flags, rix; @@ -1425,11 +1360,11 @@ static int ath_compute_num_delims(struct ath_softc *sc, if (mpdudensity == 0) return ndelim; - rix = bf->bf_rcs[0].rix; - flags = bf->bf_rcs[0].flags; + rix = tx_info->control.rates[0].idx; + flags = tx_info->control.rates[0].flags; rc = rt->info[rix].rateCode; - width = (flags & ATH_RC_CW40_FLAG) ? 1 : 0; - half_gi = (flags & ATH_RC_SGI_FLAG) ? 1 : 0; + width = (flags & IEEE80211_TX_RC_40_MHZ_WIDTH) ? 1 : 0; + half_gi = (flags & IEEE80211_TX_RC_SHORT_GI) ? 1 : 0; if (half_gi) nsymbols = NUM_SYMBOLS_PER_USEC_HALFGI(mpdudensity); @@ -1471,7 +1406,7 @@ static enum ATH_AGGR_STATUS ath_tx_form_aggr(struct ath_softc *sc, u16 aggr_limit = 0, al = 0, bpad = 0, al_delta, h_baw = tid->baw_size / 2; enum ATH_AGGR_STATUS status = ATH_AGGR_DONE; - int prev_al = 0, is_ds_rate = 0; + int prev_al = 0; INIT_LIST_HEAD(&bf_head); BUG_ON(list_empty(&tid->buf_q)); @@ -1492,11 +1427,6 @@ static enum ATH_AGGR_STATUS ath_tx_form_aggr(struct ath_softc *sc, if (!rl) { aggr_limit = ath_lookup_rate(sc, bf, tid); rl = 1; - /* - * Is rate dual stream - */ - is_ds_rate = - (bf->bf_rcs[0].flags & ATH_RC_DS_FLAG) ? 1 : 0; } /* @@ -1739,14 +1669,13 @@ static void ath_tx_setup_buffer(struct ath_softc *sc, struct ath_buf *bf, 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; - struct ath_rc_series *rcs; int hdrlen; __le16 fc; - tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif; + tx_info_priv = kzalloc(sizeof(*tx_info_priv), GFP_KERNEL); + tx_info->rate_driver_data[0] = tx_info_priv; hdrlen = ieee80211_get_hdrlen_from_skb(skb); fc = hdr->frame_control; - rcs = tx_info_priv->rcs; ATH_TXBUF_RESET(bf); @@ -1766,7 +1695,7 @@ static void ath_tx_setup_buffer(struct ath_softc *sc, struct ath_buf *bf, (sc->sc_flags & SC_OP_PREAMBLE_SHORT) ? (bf->bf_state.bf_type |= BUF_SHORT_PREAMBLE) : (bf->bf_state.bf_type &= ~BUF_SHORT_PREAMBLE); - (sc->hw->conf.ht.enabled && + (sc->hw->conf.ht.enabled && !is_pae(skb) && (tx_info->flags & IEEE80211_TX_CTL_AMPDU)) ? (bf->bf_state.bf_type |= BUF_HT) : (bf->bf_state.bf_type &= ~BUF_HT); @@ -1788,11 +1717,6 @@ static void ath_tx_setup_buffer(struct ath_softc *sc, struct ath_buf *bf, setup_rate_retries(sc, skb); - bf->bf_rcs[0] = rcs[0]; - bf->bf_rcs[1] = rcs[1]; - bf->bf_rcs[2] = rcs[2]; - bf->bf_rcs[3] = rcs[3]; - /* Assign seqno, tidno */ if (bf_isht(bf) && (sc->sc_flags & SC_OP_TXAGGR)) -- 2.30.2