From e8975581f63870be42ff4662b293d1b0c8c21350 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 9 Oct 2008 12:18:51 +0200 Subject: mac80211: introduce hw config change flags This makes mac80211 notify the driver which configuration actually changed, e.g. channel etc. No driver changes, this is just plumbing, driver authors are expected to act on this if they want to. Also remove the HW CONFIG debug printk, it's incorrect, often we configure something else. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- drivers/net/wireless/ath5k/base.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'drivers/net/wireless/ath5k/base.c') diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c index 9e47d727e220..fcd688765d04 100644 --- a/drivers/net/wireless/ath5k/base.c +++ b/drivers/net/wireless/ath5k/base.c @@ -219,8 +219,7 @@ static int ath5k_add_interface(struct ieee80211_hw *hw, struct ieee80211_if_init_conf *conf); static void ath5k_remove_interface(struct ieee80211_hw *hw, struct ieee80211_if_init_conf *conf); -static int ath5k_config(struct ieee80211_hw *hw, - struct ieee80211_conf *conf); +static int ath5k_config(struct ieee80211_hw *hw, u32 changed); static int ath5k_config_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_if_conf *conf); @@ -2780,10 +2779,10 @@ end: * TODO: Phy disable/diversity etc */ static int -ath5k_config(struct ieee80211_hw *hw, - struct ieee80211_conf *conf) +ath5k_config(struct ieee80211_hw *hw, u32 changed) { struct ath5k_softc *sc = hw->priv; + struct ieee80211_conf *conf = &hw->conf; sc->bintval = conf->beacon_int; sc->power_level = conf->power_level; -- cgit v1.2.3 From da966bcae70e4012b7d999820b728dd6502047e0 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Sun, 12 Oct 2008 22:54:10 +0200 Subject: Ath5k: add AP mode Add support for AP mode. This involves: - enablement in ath5k_beacon_config -- initialize beacon timer - add AP to the supported modes in ath5k_add_interface - handle beacon change even for AP in ath5k_config_interface - remove useless test for IBSS in ath5k_beacon_update Note that it doesn't enable the AP mode for the driver. It must be enabled by NL80211_IFTYPE_AP bit added to interface_modes. v2: Fixed opmode constant (IEEE80211_ to NL80211_) Signed-off-by: Jiri Slaby Cc: Nick Kossifidis Cc: Luis R. Rodriguez Signed-off-by: John W. Linville --- drivers/net/wireless/ath5k/base.c | 42 ++++++++++++++++----------------------- 1 file changed, 17 insertions(+), 25 deletions(-) (limited to 'drivers/net/wireless/ath5k/base.c') diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c index fcd688765d04..c98380845fa7 100644 --- a/drivers/net/wireless/ath5k/base.c +++ b/drivers/net/wireless/ath5k/base.c @@ -237,8 +237,7 @@ static int ath5k_get_tx_stats(struct ieee80211_hw *hw, struct ieee80211_tx_queue_stats *stats); static u64 ath5k_get_tsf(struct ieee80211_hw *hw); static void ath5k_reset_tsf(struct ieee80211_hw *hw); -static int ath5k_beacon_update(struct ieee80211_hw *hw, - struct sk_buff *skb); +static int ath5k_beacon_update(struct ath5k_softc *sc, struct sk_buff *skb); static struct ieee80211_ops ath5k_hw_ops = { .tx = ath5k_tx, @@ -2137,8 +2136,6 @@ ath5k_beacon_update_timers(struct ath5k_softc *sc, u64 bc_tsf) * * In IBSS mode we use a self-linked tx descriptor if possible. We enable SWBA * interrupts to detect TSF updates only. - * - * AP mode is missing. */ static void ath5k_beacon_config(struct ath5k_softc *sc) @@ -2151,7 +2148,8 @@ ath5k_beacon_config(struct ath5k_softc *sc) if (sc->opmode == NL80211_IFTYPE_STATION) { sc->imask |= AR5K_INT_BMISS; - } else if (sc->opmode == NL80211_IFTYPE_ADHOC) { + } else if (sc->opmode == NL80211_IFTYPE_ADHOC || + sc->opmode == NL80211_IFTYPE_AP) { /* * In IBSS mode we use a self-linked tx descriptor and let the * hardware send the beacons automatically. We have to load it @@ -2163,13 +2161,15 @@ ath5k_beacon_config(struct ath5k_softc *sc) sc->imask |= AR5K_INT_SWBA; - if (ath5k_hw_hasveol(ah)) { - spin_lock(&sc->block); - ath5k_beacon_send(sc); - spin_unlock(&sc->block); - } + if (sc->opmode == NL80211_IFTYPE_ADHOC) { + if (ath5k_hw_hasveol(ah)) { + spin_lock(&sc->block); + ath5k_beacon_send(sc); + spin_unlock(&sc->block); + } + } else + ath5k_beacon_update_timers(sc, -1); } - /* TODO else AP */ ath5k_hw_set_imr(ah, sc->imask); } @@ -2740,6 +2740,7 @@ static int ath5k_add_interface(struct ieee80211_hw *hw, sc->vif = conf->vif; switch (conf->type) { + case NL80211_IFTYPE_AP: case NL80211_IFTYPE_STATION: case NL80211_IFTYPE_ADHOC: case NL80211_IFTYPE_MONITOR: @@ -2803,7 +2804,7 @@ ath5k_config_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif, ret = -EIO; goto unlock; } - if (conf->bssid) { + if (conf->changed & IEEE80211_IFCC_BSSID && conf->bssid) { /* Cache for later use during resets */ memcpy(ah->ah_bssid, conf->bssid, ETH_ALEN); /* XXX: assoc id is set to 0 for now, mac80211 doesn't have @@ -2811,18 +2812,16 @@ ath5k_config_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif, ath5k_hw_set_associd(ah, ah->ah_bssid, 0); mmiowb(); } - if (conf->changed & IEEE80211_IFCC_BEACON && - vif->type == NL80211_IFTYPE_ADHOC) { + (vif->type == NL80211_IFTYPE_ADHOC || + vif->type == NL80211_IFTYPE_AP)) { struct sk_buff *beacon = ieee80211_beacon_get(hw, vif); if (!beacon) { ret = -ENOMEM; goto unlock; } - /* call old handler for now */ - ath5k_beacon_update(hw, beacon); + ath5k_beacon_update(sc, beacon); } - mutex_unlock(&sc->lock); return ath5k_reset_wake(sc); @@ -3052,19 +3051,13 @@ ath5k_reset_tsf(struct ieee80211_hw *hw) } static int -ath5k_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb) +ath5k_beacon_update(struct ath5k_softc *sc, struct sk_buff *skb) { - struct ath5k_softc *sc = hw->priv; unsigned long flags; int ret; ath5k_debug_dump_skb(sc, skb, "BC ", 1); - if (sc->opmode != NL80211_IFTYPE_ADHOC) { - ret = -EIO; - goto end; - } - spin_lock_irqsave(&sc->block, flags); ath5k_txbuf_free(sc, sc->bbuf); sc->bbuf->skb = skb; @@ -3077,7 +3070,6 @@ ath5k_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb) mmiowb(); } -end: return ret; } -- cgit v1.2.3 From 6e0e0bf80c963d83f511e1cda652630cf31ebf85 Mon Sep 17 00:00:00 2001 From: "Luis R. Rodriguez" Date: Mon, 13 Oct 2008 14:08:10 -0700 Subject: ath5k: correct ath5k signal quality This adjusts ath5k's signal quality reporting taking into consideration received beacons at an RSSI of 35 should indicate you can use of 54 Mbps on a single stream card (all ath5k cards) reliably. Signed-off-by: Luis R. Rodriguez Acked-by: Nick Kossifidis Signed-off-by: John W. Linville --- drivers/net/wireless/ath5k/base.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) (limited to 'drivers/net/wireless/ath5k/base.c') diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c index c98380845fa7..b1e9a47c1c55 100644 --- a/drivers/net/wireless/ath5k/base.c +++ b/drivers/net/wireless/ath5k/base.c @@ -1778,7 +1778,17 @@ accept: rxs.noise = sc->ah->ah_noise_floor; rxs.signal = rxs.noise + rs.rs_rssi; - rxs.qual = rs.rs_rssi * 100 / 64; + + /* An rssi of 35 indicates you should be able use + * 54 Mbps reliably. A more elaborate scheme can be used + * here but it requires a map of SNR/throughput for each + * possible mode used */ + rxs.qual = rs.rs_rssi * 100 / 35; + + /* rssi can be more than 35 though, anything above that + * should be considered at 100% */ + if (rxs.qual > 100) + rxs.qual = 100; rxs.antenna = rs.rs_antenna; rxs.rate_idx = ath5k_hw_to_driver_rix(sc, rs.rs_rate); -- cgit v1.2.3 From b706e65b40417e03c2451bb3f92488f3736843fa Mon Sep 17 00:00:00 2001 From: Andrey Yurovsky Date: Mon, 13 Oct 2008 18:23:07 -0700 Subject: ath5k: fix mesh point operation This patch fixes mesh point operation (thanks to YanBo for pointing out the problem): make mesh point interfaces start beaconing when they come up and configure the RX filter in mesh mode so that mesh beacons and action frames are received. Add mesh point to the check in ath5k_add_interface. Tested with multiple AR5211 cards. Signed-off-by: Andrey Yurovsky Acked-by: Nick Kossifidis Signed-off-by: John W. Linville --- drivers/net/wireless/ath5k/base.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/net/wireless/ath5k/base.c') diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c index b1e9a47c1c55..44401f6f578d 100644 --- a/drivers/net/wireless/ath5k/base.c +++ b/drivers/net/wireless/ath5k/base.c @@ -2159,6 +2159,7 @@ ath5k_beacon_config(struct ath5k_softc *sc) if (sc->opmode == NL80211_IFTYPE_STATION) { sc->imask |= AR5K_INT_BMISS; } else if (sc->opmode == NL80211_IFTYPE_ADHOC || + sc->opmode == NL80211_IFTYPE_MESH_POINT || sc->opmode == NL80211_IFTYPE_AP) { /* * In IBSS mode we use a self-linked tx descriptor and let the @@ -2753,6 +2754,7 @@ static int ath5k_add_interface(struct ieee80211_hw *hw, case NL80211_IFTYPE_AP: case NL80211_IFTYPE_STATION: case NL80211_IFTYPE_ADHOC: + case NL80211_IFTYPE_MESH_POINT: case NL80211_IFTYPE_MONITOR: sc->opmode = conf->type; break; @@ -2824,6 +2826,7 @@ ath5k_config_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif, } if (conf->changed & IEEE80211_IFCC_BEACON && (vif->type == NL80211_IFTYPE_ADHOC || + vif->type == NL80211_IFTYPE_MESH_POINT || vif->type == NL80211_IFTYPE_AP)) { struct sk_buff *beacon = ieee80211_beacon_get(hw, vif); if (!beacon) { @@ -2952,6 +2955,9 @@ static void ath5k_configure_filter(struct ieee80211_hw *hw, rfilt |= AR5K_RX_FILTER_PROM; if (sc->opmode == NL80211_IFTYPE_ADHOC) rfilt |= AR5K_RX_FILTER_BEACON; + if (sc->opmode == NL80211_IFTYPE_MESH_POINT) + rfilt |= AR5K_RX_FILTER_CONTROL | AR5K_RX_FILTER_BEACON | + AR5K_RX_FILTER_PROBEREQ | AR5K_RX_FILTER_PROM; /* Set filters */ ath5k_hw_set_rx_filter(ah,rfilt); -- cgit v1.2.3 From e6a9854b05c1a6af1308fe2b8c68f35abf28a3ee Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Tue, 21 Oct 2008 12:40:02 +0200 Subject: mac80211/drivers: rewrite the rate control API So after the previous changes we were still unhappy with how convoluted the API is and decided to make things simpler for everybody. This completely changes the rate control API, now taking into account 802.11n with MCS rates and more control, most drivers don't support that though. Signed-off-by: Felix Fietkau Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- drivers/net/wireless/adm8211.c | 21 +- drivers/net/wireless/ath5k/base.c | 34 ++- drivers/net/wireless/ath9k/main.c | 18 +- drivers/net/wireless/ath9k/rc.c | 40 +-- drivers/net/wireless/ath9k/xmit.c | 28 ++- drivers/net/wireless/b43/dma.c | 4 +- drivers/net/wireless/b43/main.c | 2 +- drivers/net/wireless/b43/pio.c | 3 +- drivers/net/wireless/b43/xmit.c | 60 ++++- drivers/net/wireless/b43/xmit.h | 5 +- drivers/net/wireless/b43legacy/dma.c | 46 ++-- drivers/net/wireless/b43legacy/main.c | 2 +- drivers/net/wireless/b43legacy/pio.c | 31 ++- drivers/net/wireless/b43legacy/xmit.c | 26 +- drivers/net/wireless/b43legacy/xmit.h | 2 +- drivers/net/wireless/iwlwifi/iwl-3945-rs.c | 57 ++--- drivers/net/wireless/iwlwifi/iwl-3945.c | 65 ++++- drivers/net/wireless/iwlwifi/iwl-3945.h | 2 + drivers/net/wireless/iwlwifi/iwl-4965.c | 8 +- drivers/net/wireless/iwlwifi/iwl-5000.c | 8 +- drivers/net/wireless/iwlwifi/iwl-agn-rs.c | 37 ++- drivers/net/wireless/iwlwifi/iwl-core.c | 19 +- drivers/net/wireless/iwlwifi/iwl3945-base.c | 5 +- drivers/net/wireless/libertas_tf/main.c | 4 +- drivers/net/wireless/mac80211_hwsim.c | 12 +- drivers/net/wireless/p54/p54common.c | 26 +- drivers/net/wireless/rt2x00/rt2x00dev.c | 14 +- drivers/net/wireless/rt2x00/rt2x00mac.c | 14 +- drivers/net/wireless/rt2x00/rt2x00queue.c | 22 +- drivers/net/wireless/rt2x00/rt2x00queue.h | 9 +- drivers/net/wireless/rtl8180_dev.c | 28 +-- drivers/net/wireless/rtl8187_dev.c | 18 +- drivers/net/wireless/zd1211rw/zd_mac.c | 32 +-- drivers/net/wireless/zd1211rw/zd_usb.c | 2 +- include/net/mac80211.h | 254 +++++++++++-------- net/mac80211/ieee80211_i.h | 8 - net/mac80211/main.c | 54 +++- net/mac80211/mesh_hwmp.c | 6 +- net/mac80211/rate.c | 52 ++-- net/mac80211/rate.h | 5 +- net/mac80211/rc80211_minstrel.c | 72 +++--- net/mac80211/rc80211_pid.h | 1 + net/mac80211/rc80211_pid_algo.c | 27 +- net/mac80211/rc80211_pid_debugfs.c | 5 +- net/mac80211/sta_info.h | 4 +- net/mac80211/tx.c | 378 +++++++++++++--------------- net/mac80211/wext.c | 4 +- 47 files changed, 889 insertions(+), 685 deletions(-) (limited to 'drivers/net/wireless/ath5k/base.c') diff --git a/drivers/net/wireless/adm8211.c b/drivers/net/wireless/adm8211.c index 9a1e0c514c08..b96ebfe4ef3e 100644 --- a/drivers/net/wireless/adm8211.c +++ b/drivers/net/wireless/adm8211.c @@ -341,15 +341,14 @@ static void adm8211_interrupt_tci(struct ieee80211_hw *dev) pci_unmap_single(priv->pdev, info->mapping, info->skb->len, PCI_DMA_TODEVICE); - memset(&txi->status, 0, sizeof(txi->status)); + ieee80211_tx_info_clear_status(txi); + skb_pull(skb, sizeof(struct adm8211_tx_hdr)); memcpy(skb_push(skb, info->hdrlen), skb->cb, info->hdrlen); - if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK)) { - if (status & TDES0_STATUS_ES) - txi->status.excessive_retries = 1; - else - txi->flags |= IEEE80211_TX_STAT_ACK; - } + if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && + !(status & TDES0_STATUS_ES)) + txi->flags |= IEEE80211_TX_STAT_ACK; + ieee80211_tx_status_irqsafe(dev, skb); info->skb = NULL; @@ -1691,8 +1690,10 @@ static int adm8211_tx(struct ieee80211_hw *dev, struct sk_buff *skb) struct ieee80211_hdr *hdr; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); struct ieee80211_rate *txrate = ieee80211_get_tx_rate(dev, info); + u8 rc_flags; - short_preamble = !!(txrate->flags & IEEE80211_TX_CTL_SHORT_PREAMBLE); + rc_flags = info->control.rates[0].flags; + short_preamble = !!(rc_flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE); plcp_signal = txrate->bitrate; hdr = (struct ieee80211_hdr *)skb->data; @@ -1724,10 +1725,10 @@ static int adm8211_tx(struct ieee80211_hw *dev, struct sk_buff *skb) if (short_preamble) txhdr->header_control |= cpu_to_le16(ADM8211_TXHDRCTL_SHORT_PREAMBLE); - if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) + if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) txhdr->header_control |= cpu_to_le16(ADM8211_TXHDRCTL_ENABLE_RTS); - txhdr->retry_limit = info->control.retry_limit; + txhdr->retry_limit = info->control.rates[0].count; adm8211_tx_raw(dev, skb, plcp_signal, hdrlen); diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c index 44401f6f578d..3773d983ea66 100644 --- a/drivers/net/wireless/ath5k/base.c +++ b/drivers/net/wireless/ath5k/base.c @@ -541,8 +541,8 @@ ath5k_pci_probe(struct pci_dev *pdev, /* set up multi-rate retry capabilities */ if (sc->ah->ah_version == AR5K_AR5212) { - hw->max_altrates = 3; - hw->max_altrate_tries = 11; + hw->max_rates = 4; + hw->max_rate_tries = 11; } /* Finish private driver data initialization */ @@ -1181,7 +1181,7 @@ ath5k_txbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf) ieee80211_get_hdrlen_from_skb(skb), AR5K_PKT_TYPE_NORMAL, (sc->power_level * 2), ieee80211_get_tx_rate(sc->hw, info)->hw_value, - info->control.retry_limit, keyidx, 0, flags, 0, 0); + info->control.rates[0].count, keyidx, 0, flags, 0, 0); if (ret) goto err_unmap; @@ -1193,7 +1193,7 @@ ath5k_txbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf) break; mrr_rate[i] = rate->hw_value; - mrr_tries[i] = info->control.retries[i].limit; + mrr_tries[i] = info->control.rates[i + 1].count; } ah->ah_setup_mrr_tx_desc(ah, ds, @@ -1849,30 +1849,26 @@ ath5k_tx_processq(struct ath5k_softc *sc, struct ath5k_txq *txq) pci_unmap_single(sc->pdev, bf->skbaddr, skb->len, PCI_DMA_TODEVICE); - memset(&info->status, 0, sizeof(info->status)); - info->tx_rate_idx = ath5k_hw_to_driver_rix(sc, - ts.ts_rate[ts.ts_final_idx]); - info->status.retry_count = ts.ts_longretry; - + ieee80211_tx_info_clear_status(info); for (i = 0; i < 4; i++) { - struct ieee80211_tx_altrate *r = - &info->status.retries[i]; + struct ieee80211_tx_rate *r = + &info->status.rates[i]; if (ts.ts_rate[i]) { - r->rate_idx = ath5k_hw_to_driver_rix(sc, ts.ts_rate[i]); - r->limit = ts.ts_retry[i]; + r->idx = ath5k_hw_to_driver_rix(sc, ts.ts_rate[i]); + r->count = ts.ts_retry[i]; } else { - r->rate_idx = -1; - r->limit = 0; + r->idx = -1; + r->count = 0; } } - info->status.excessive_retries = 0; + /* count the successful attempt as well */ + info->status.rates[ts.ts_final_idx].count++; + if (unlikely(ts.ts_status)) { sc->ll_stats.dot11ACKFailureCount++; - if (ts.ts_status & AR5K_TXERR_XRETRY) - info->status.excessive_retries = 1; - else if (ts.ts_status & AR5K_TXERR_FILT) + if (ts.ts_status & AR5K_TXERR_FILT) info->flags |= IEEE80211_TX_STAT_TX_FILTERED; } else { info->flags |= IEEE80211_TX_STAT_ACK; diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c index 32acaf7ff622..a7656a3ea1b0 100644 --- a/drivers/net/wireless/ath9k/main.c +++ b/drivers/net/wireless/ath9k/main.c @@ -457,12 +457,13 @@ 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 */ - if (tx_info->driver_data[0] != NULL) - kfree(tx_info->driver_data[0]); - tx_info->driver_data[0] = NULL; + /* 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_status->flags & ATH_TX_BAR) { @@ -470,17 +471,12 @@ void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb, tx_status->flags &= ~ATH_TX_BAR; } - if (tx_status->flags & (ATH_TX_ERROR | ATH_TX_XRETRY)) { - if (!(tx_info->flags & IEEE80211_TX_CTL_NO_ACK)) { - /* Frame was not ACKed, but an ACK was expected */ - tx_info->status.excessive_retries = 1; - } - } else { + if (!(tx_status->flags & (ATH_TX_ERROR | ATH_TX_XRETRY))) { /* Frame was ACKed */ tx_info->flags |= IEEE80211_TX_STAT_ACK; } - tx_info->status.retry_count = tx_status->retries; + tx_info->status.rates[0].count = tx_status->retries + 1; ieee80211_tx_status(hw, skb); if (an) diff --git a/drivers/net/wireless/ath9k/rc.c b/drivers/net/wireless/ath9k/rc.c index 9b2526030965..6afafeddeda2 100644 --- a/drivers/net/wireless/ath9k/rc.c +++ b/drivers/net/wireless/ath9k/rc.c @@ -1864,24 +1864,21 @@ static void ath_tx_status(void *priv, struct ieee80211_supported_band *sband, hdr = (struct ieee80211_hdr *)skb->data; fc = hdr->frame_control; - tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0]; + /* XXX: UGLY HACK!! */ + tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif; spin_lock_bh(&sc->node_lock); an = ath_node_find(sc, hdr->addr1); spin_unlock_bh(&sc->node_lock); - if (!an || !priv_sta || !ieee80211_is_data(fc)) { - if (tx_info->driver_data[0] != NULL) { - kfree(tx_info->driver_data[0]); - tx_info->driver_data[0] = NULL; - } + if (tx_info_priv == NULL) return; - } - if (tx_info->driver_data[0] != NULL) { + + if (an && priv_sta && ieee80211_is_data(fc)) ath_rate_tx_complete(sc, an, priv_sta, tx_info_priv); - kfree(tx_info->driver_data[0]); - tx_info->driver_data[0] = NULL; - } + + kfree(tx_info_priv); + tx_info->control.vif = NULL; } static void ath_tx_aggr_resp(struct ath_softc *sc, @@ -1927,10 +1924,11 @@ static void ath_tx_aggr_resp(struct ath_softc *sc, } } -static void ath_get_rate(void *priv, struct ieee80211_supported_band *sband, - struct ieee80211_sta *sta, void *priv_sta, - struct sk_buff *skb, struct rate_selection *sel) +static void ath_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta, + struct ieee80211_tx_rate_control *txrc) { + struct ieee80211_supported_band *sband = txrc->sband; + struct sk_buff *skb = txrc->skb; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; struct ath_softc *sc = priv; struct ieee80211_hw *hw = sc->hw; @@ -1945,17 +1943,17 @@ static void ath_get_rate(void *priv, struct ieee80211_supported_band *sband, DPRINTF(sc, ATH_DBG_RATE, "%s\n", __func__); - /* allocate driver private area of tx_info */ - tx_info->driver_data[0] = kzalloc(sizeof(*tx_info_priv), GFP_ATOMIC); - ASSERT(tx_info->driver_data[0] != NULL); - tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0]; + /* 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) { - sel->rate_idx = lowest_idx; + tx_info->control.rates[0].idx = lowest_idx; return; } @@ -1966,8 +1964,10 @@ static void ath_get_rate(void *priv, struct ieee80211_supported_band *sband, tx_info_priv->rcs, &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) @@ -1975,7 +1975,7 @@ static void ath_get_rate(void *priv, struct ieee80211_supported_band *sband, else tx_info_priv->rcs[0].rix = ath_rc_priv->prev_data_rix; - sel->rate_idx = tx_info_priv->rcs[0].rix; + tx_info->control.rates[0].idx = tx_info_priv->rcs[0].rix; /* Check if aggregation has to be enabled for this tid */ diff --git a/drivers/net/wireless/ath9k/xmit.c b/drivers/net/wireless/ath9k/xmit.c index ba818cc2fb5c..9fa395418a6c 100644 --- a/drivers/net/wireless/ath9k/xmit.c +++ b/drivers/net/wireless/ath9k/xmit.c @@ -168,7 +168,9 @@ static void fill_min_rates(struct sk_buff *skb, struct ath_tx_control *txctl) hdr = (struct ieee80211_hdr *)skb->data; fc = hdr->frame_control; - tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0]; + + /* XXX: HACK! */ + tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif; if (ieee80211_is_mgmt(fc) || ieee80211_is_ctl(fc)) { txctl->use_minrate = 1; @@ -288,13 +290,16 @@ static int ath_tx_prepare(struct ath_softc *sc, if (tx_info->flags & IEEE80211_TX_CTL_NO_ACK) txctl->flags |= ATH9K_TXDESC_NOACK; - if (tx_info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) + + if (tx_info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) txctl->flags |= ATH9K_TXDESC_RTSENA; /* * Setup for rate calculations. */ - tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0]; + + /* XXX: HACK! */ + tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif; rcs = tx_info_priv->rcs; if (ieee80211_is_data(fc) && !txctl->use_minrate) { @@ -855,7 +860,9 @@ static int ath_tx_send_normal(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->driver_data[0]; + + /* 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 */ @@ -1249,8 +1256,9 @@ static int ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq) } skb = bf->bf_mpdu; tx_info = IEEE80211_SKB_CB(skb); - tx_info_priv = (struct ath_tx_info_priv *) - tx_info->driver_data[0]; + + /* XXX: HACK! */ + tx_info_priv = (struct ath_tx_info_priv *) tx_info->control.vif; 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 && @@ -1431,7 +1439,8 @@ static int ath_tx_send_ampdu(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->driver_data[0]; + /* 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 */ @@ -1466,7 +1475,7 @@ 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->driver_data[0]; + tx_info->control.vif; /* XXX: HACK! */ memcpy(bf->bf_rcs, tx_info_priv->rcs, 4 * sizeof(tx_info_priv->rcs[0])); @@ -1927,7 +1936,8 @@ static int ath_tx_start_dma(struct ath_softc *sc, bf->bf_flags = txctl->flags; bf->bf_keytype = txctl->keytype; - tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0]; + /* XXX: HACK! */ + tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif; rcs = tx_info_priv->rcs; bf->bf_rcs[0] = rcs[0]; bf->bf_rcs[1] = rcs[1]; diff --git a/drivers/net/wireless/b43/dma.c b/drivers/net/wireless/b43/dma.c index 098f886976f6..6d65a02b7052 100644 --- a/drivers/net/wireless/b43/dma.c +++ b/drivers/net/wireless/b43/dma.c @@ -1387,13 +1387,11 @@ void b43_dma_handle_txstatus(struct b43_wldev *dev, info = IEEE80211_SKB_CB(meta->skb); - memset(&info->status, 0, sizeof(info->status)); - /* * Call back to inform the ieee80211 subsystem about * the status of the transmission. */ - frame_succeed = b43_fill_txstatus_report(info, status); + frame_succeed = b43_fill_txstatus_report(dev, info, status); #ifdef CONFIG_B43_DEBUG if (frame_succeed) ring->nr_succeed_tx_packets++; diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index 9aeeb6553a91..2a599fb772d9 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -4555,7 +4555,7 @@ static int b43_wireless_init(struct ssb_device *dev) BIT(NL80211_IFTYPE_ADHOC); hw->queues = b43_modparam_qos ? 4 : 1; - hw->max_altrates = 1; + hw->max_rates = 2; SET_IEEE80211_DEV(hw, dev->dev); if (is_valid_ether_addr(sprom->et1mac)) SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac); diff --git a/drivers/net/wireless/b43/pio.c b/drivers/net/wireless/b43/pio.c index 401591267592..1036bef8c4cc 100644 --- a/drivers/net/wireless/b43/pio.c +++ b/drivers/net/wireless/b43/pio.c @@ -587,9 +587,8 @@ void b43_pio_handle_txstatus(struct b43_wldev *dev, spin_lock(&q->lock); /* IRQs are already disabled. */ info = IEEE80211_SKB_CB(pack->skb); - memset(&info->status, 0, sizeof(info->status)); - b43_fill_txstatus_report(info, status); + b43_fill_txstatus_report(dev, info, status); total_len = pack->skb->len + b43_txhdr_size(dev); total_len = roundup(total_len, 4); diff --git a/drivers/net/wireless/b43/xmit.c b/drivers/net/wireless/b43/xmit.c index 2fabcf8f0474..adba89b816d4 100644 --- a/drivers/net/wireless/b43/xmit.c +++ b/drivers/net/wireless/b43/xmit.c @@ -185,7 +185,7 @@ int b43_generate_txhdr(struct b43_wldev *dev, u8 *_txhdr, const unsigned char *fragment_data, unsigned int fragment_len, - const struct ieee80211_tx_info *info, + struct ieee80211_tx_info *info, u16 cookie) { struct b43_txhdr *txhdr = (struct b43_txhdr *)_txhdr; @@ -202,6 +202,7 @@ int b43_generate_txhdr(struct b43_wldev *dev, u16 phy_ctl = 0; u8 extra_ft = 0; struct ieee80211_rate *txrate; + struct ieee80211_tx_rate *rates; memset(txhdr, 0, sizeof(*txhdr)); @@ -291,7 +292,7 @@ int b43_generate_txhdr(struct b43_wldev *dev, phy_ctl |= B43_TXH_PHY_ENC_OFDM; else phy_ctl |= B43_TXH_PHY_ENC_CCK; - if (info->flags & IEEE80211_TX_CTL_SHORT_PREAMBLE) + if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) phy_ctl |= B43_TXH_PHY_SHORTPRMBL; switch (b43_ieee80211_antenna_sanitize(dev, info->antenna_sel_tx)) { @@ -314,6 +315,7 @@ int b43_generate_txhdr(struct b43_wldev *dev, B43_WARN_ON(1); } + rates = info->control.rates; /* MAC control */ if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) mac_ctl |= B43_TXH_MAC_ACK; @@ -324,12 +326,22 @@ int b43_generate_txhdr(struct b43_wldev *dev, mac_ctl |= B43_TXH_MAC_STMSDU; if (phy->type == B43_PHYTYPE_A) mac_ctl |= B43_TXH_MAC_5GHZ; - if (info->flags & IEEE80211_TX_CTL_LONG_RETRY_LIMIT) + + /* Overwrite rates[0].count to make the retry calculation + * in the tx status easier. need the actual retry limit to + * detect whether the fallback rate was used. + */ + if ((rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) || + (rates[0].count <= dev->wl->hw->conf.long_frame_max_tx_count)) { + rates[0].count = dev->wl->hw->conf.long_frame_max_tx_count; mac_ctl |= B43_TXH_MAC_LONGFRAME; + } else { + rates[0].count = dev->wl->hw->conf.short_frame_max_tx_count; + } /* Generate the RTS or CTS-to-self frame */ - if ((info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) || - (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)) { + if ((rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) || + (rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)) { unsigned int len; struct ieee80211_hdr *hdr; int rts_rate, rts_rate_fb; @@ -344,7 +356,7 @@ int b43_generate_txhdr(struct b43_wldev *dev, rts_rate_fb = b43_calc_fallback_rate(rts_rate); rts_rate_fb_ofdm = b43_is_ofdm_rate(rts_rate_fb); - if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) { + if (rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { struct ieee80211_cts *cts; if (b43_is_old_txhdr_format(dev)) { @@ -687,10 +699,18 @@ void b43_handle_txstatus(struct b43_wldev *dev, /* Fill out the mac80211 TXstatus report based on the b43-specific * txstatus report data. This returns a boolean whether the frame was * successfully transmitted. */ -bool b43_fill_txstatus_report(struct ieee80211_tx_info *report, +bool b43_fill_txstatus_report(struct b43_wldev *dev, + struct ieee80211_tx_info *report, const struct b43_txstatus *status) { bool frame_success = 1; + int retry_limit; + + /* preserve the confiured retry limit before clearing the status + * The xmit function has overwritten the rc's value with the actual + * retry limit done by the hardware */ + retry_limit = report->status.rates[0].count; + ieee80211_tx_info_clear_status(report); if (status->acked) { /* The frame was ACKed. */ @@ -700,14 +720,32 @@ bool b43_fill_txstatus_report(struct ieee80211_tx_info *report, if (!(report->flags & IEEE80211_TX_CTL_NO_ACK)) { /* ...but we expected an ACK. */ frame_success = 0; - report->status.excessive_retries = 1; } } if (status->frame_count == 0) { /* The frame was not transmitted at all. */ - report->status.retry_count = 0; - } else - report->status.retry_count = status->frame_count - 1; + report->status.rates[0].count = 0; + } else if (status->rts_count > dev->wl->hw->conf.short_frame_max_tx_count) { + /* + * If the short retries (RTS, not data frame) have exceeded + * the limit, the hw will not have tried the selected rate, + * but will have used the fallback rate instead. + * Don't let the rate control count attempts for the selected + * rate in this case, otherwise the statistics will be off. + */ + report->status.rates[0].count = 0; + report->status.rates[1].count = status->frame_count; + } else { + if (status->frame_count > retry_limit) { + report->status.rates[0].count = retry_limit; + report->status.rates[1].count = status->frame_count - + retry_limit; + + } else { + report->status.rates[0].count = status->frame_count; + report->status.rates[1].idx = -1; + } + } return frame_success; } diff --git a/drivers/net/wireless/b43/xmit.h b/drivers/net/wireless/b43/xmit.h index 0215faf47541..4fb2a190f7a7 100644 --- a/drivers/net/wireless/b43/xmit.h +++ b/drivers/net/wireless/b43/xmit.h @@ -178,7 +178,7 @@ int b43_generate_txhdr(struct b43_wldev *dev, u8 * txhdr, const unsigned char *fragment_data, unsigned int fragment_len, - const struct ieee80211_tx_info *txctl, u16 cookie); + struct ieee80211_tx_info *txctl, u16 cookie); /* Transmit Status */ struct b43_txstatus { @@ -294,7 +294,8 @@ void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr); void b43_handle_txstatus(struct b43_wldev *dev, const struct b43_txstatus *status); -bool b43_fill_txstatus_report(struct ieee80211_tx_info *report, +bool b43_fill_txstatus_report(struct b43_wldev *dev, + struct ieee80211_tx_info *report, const struct b43_txstatus *status); void b43_tx_suspend(struct b43_wldev *dev); diff --git a/drivers/net/wireless/b43legacy/dma.c b/drivers/net/wireless/b43legacy/dma.c index fb6819e40f38..308c2647f002 100644 --- a/drivers/net/wireless/b43legacy/dma.c +++ b/drivers/net/wireless/b43legacy/dma.c @@ -1411,6 +1411,7 @@ void b43legacy_dma_handle_txstatus(struct b43legacy_wldev *dev, struct b43legacy_dmaring *ring; struct b43legacy_dmadesc_generic *desc; struct b43legacy_dmadesc_meta *meta; + int retry_limit; int slot; ring = parse_cookie(dev, status->cookie, &slot); @@ -1437,25 +1438,42 @@ void b43legacy_dma_handle_txstatus(struct b43legacy_wldev *dev, struct ieee80211_tx_info *info; BUG_ON(!meta->skb); info = IEEE80211_SKB_CB(meta->skb); - /* Call back to inform the ieee80211 subsystem about the - * status of the transmission. - * Some fields of txstat are already filled in dma_tx(). - */ - memset(&info->status, 0, sizeof(info->status)); + /* preserve the confiured retry limit before clearing the status + * The xmit function has overwritten the rc's value with the actual + * retry limit done by the hardware */ + retry_limit = info->status.rates[0].count; + ieee80211_tx_info_clear_status(info); - if (status->acked) { + if (status->acked) info->flags |= IEEE80211_TX_STAT_ACK; + + if (status->rts_count > dev->wl->hw->conf.short_frame_max_tx_count) { + /* + * If the short retries (RTS, not data frame) have exceeded + * the limit, the hw will not have tried the selected rate, + * but will have used the fallback rate instead. + * Don't let the rate control count attempts for the selected + * rate in this case, otherwise the statistics will be off. + */ + info->status.rates[0].count = 0; + info->status.rates[1].count = status->frame_count; } else { - if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) - info->status.excessive_retries = 1; + if (status->frame_count > retry_limit) { + info->status.rates[0].count = retry_limit; + info->status.rates[1].count = status->frame_count - + retry_limit; + + } else { + info->status.rates[0].count = status->frame_count; + info->status.rates[1].idx = -1; + } } - if (status->frame_count == 0) { - /* The frame was not transmitted at all. */ - info->status.retry_count = 0; - } else - info->status.retry_count = status->frame_count - - 1; + + /* Call back to inform the ieee80211 subsystem about the + * status of the transmission. + * Some fields of txstat are already filled in dma_tx(). + */ ieee80211_tx_status_irqsafe(dev->wl->hw, meta->skb); /* skb is freed by ieee80211_tx_status_irqsafe() */ meta->skb = NULL; diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c index 78e46365f69e..9edbdf9cb50f 100644 --- a/drivers/net/wireless/b43legacy/main.c +++ b/drivers/net/wireless/b43legacy/main.c @@ -3682,7 +3682,7 @@ static int b43legacy_wireless_init(struct ssb_device *dev) BIT(NL80211_IFTYPE_WDS) | BIT(NL80211_IFTYPE_ADHOC); hw->queues = 1; /* FIXME: hardware has more queues */ - hw->max_altrates = 1; + hw->max_rates = 2; SET_IEEE80211_DEV(hw, dev->dev); if (is_valid_ether_addr(sprom->et1mac)) SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac); diff --git a/drivers/net/wireless/b43legacy/pio.c b/drivers/net/wireless/b43legacy/pio.c index a86c7647fa2d..746d5361bba0 100644 --- a/drivers/net/wireless/b43legacy/pio.c +++ b/drivers/net/wireless/b43legacy/pio.c @@ -491,6 +491,7 @@ void b43legacy_pio_handle_txstatus(struct b43legacy_wldev *dev, struct b43legacy_pioqueue *queue; struct b43legacy_pio_txpacket *packet; struct ieee80211_tx_info *info; + int retry_limit; queue = parse_cookie(dev, status->cookie, &packet); B43legacy_WARN_ON(!queue); @@ -503,11 +504,37 @@ void b43legacy_pio_handle_txstatus(struct b43legacy_wldev *dev, sizeof(struct b43legacy_txhdr_fw3)); info = IEEE80211_SKB_CB(packet->skb); - memset(&info->status, 0, sizeof(info->status)); + + /* preserve the confiured retry limit before clearing the status + * The xmit function has overwritten the rc's value with the actual + * retry limit done by the hardware */ + retry_limit = info->status.rates[0].count; + ieee80211_tx_info_clear_status(info); if (status->acked) info->flags |= IEEE80211_TX_STAT_ACK; - info->status.retry_count = status->frame_count - 1; + + if (status->rts_count > dev->wl->hw->conf.short_frame_max_tx_count) { + /* + * If the short retries (RTS, not data frame) have exceeded + * the limit, the hw will not have tried the selected rate, + * but will have used the fallback rate instead. + * Don't let the rate control count attempts for the selected + * rate in this case, otherwise the statistics will be off. + */ + info->status.rates[0].count = 0; + info->status.rates[1].count = status->frame_count; + } else { + if (status->frame_count > retry_limit) { + info->status.rates[0].count = retry_limit; + info->status.rates[1].count = status->frame_count - + retry_limit; + + } else { + info->status.rates[0].count = status->frame_count; + info->status.rates[1].idx = -1; + } + } ieee80211_tx_status_irqsafe(dev->wl->hw, packet->skb); packet->skb = NULL; diff --git a/drivers/net/wireless/b43legacy/xmit.c b/drivers/net/wireless/b43legacy/xmit.c index 65e833781608..12fca99f7578 100644 --- a/drivers/net/wireless/b43legacy/xmit.c +++ b/drivers/net/wireless/b43legacy/xmit.c @@ -188,7 +188,7 @@ static int generate_txhdr_fw3(struct b43legacy_wldev *dev, struct b43legacy_txhdr_fw3 *txhdr, const unsigned char *fragment_data, unsigned int fragment_len, - const struct ieee80211_tx_info *info, + struct ieee80211_tx_info *info, u16 cookie) { const struct ieee80211_hdr *wlhdr; @@ -201,6 +201,7 @@ static int generate_txhdr_fw3(struct b43legacy_wldev *dev, u32 mac_ctl = 0; u16 phy_ctl = 0; struct ieee80211_rate *tx_rate; + struct ieee80211_tx_rate *rates; wlhdr = (const struct ieee80211_hdr *)fragment_data; @@ -274,7 +275,7 @@ static int generate_txhdr_fw3(struct b43legacy_wldev *dev, /* PHY TX Control word */ if (rate_ofdm) phy_ctl |= B43legacy_TX4_PHY_OFDM; - if (dev->short_preamble) + if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) phy_ctl |= B43legacy_TX4_PHY_SHORTPRMBL; switch (info->antenna_sel_tx) { case 0: @@ -291,6 +292,7 @@ static int generate_txhdr_fw3(struct b43legacy_wldev *dev, } /* MAC control */ + rates = info->control.rates; if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) mac_ctl |= B43legacy_TX4_MAC_ACK; if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) @@ -299,12 +301,22 @@ static int generate_txhdr_fw3(struct b43legacy_wldev *dev, mac_ctl |= B43legacy_TX4_MAC_STMSDU; if (rate_fb_ofdm) mac_ctl |= B43legacy_TX4_MAC_FALLBACKOFDM; - if (info->flags & IEEE80211_TX_CTL_LONG_RETRY_LIMIT) + + /* Overwrite rates[0].count to make the retry calculation + * in the tx status easier. need the actual retry limit to + * detect whether the fallback rate was used. + */ + if ((rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) || + (rates[0].count <= dev->wl->hw->conf.long_frame_max_tx_count)) { + rates[0].count = dev->wl->hw->conf.long_frame_max_tx_count; mac_ctl |= B43legacy_TX4_MAC_LONGFRAME; + } else { + rates[0].count = dev->wl->hw->conf.short_frame_max_tx_count; + } /* Generate the RTS or CTS-to-self frame */ - if ((info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) || - (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)) { + if ((rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) || + (rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)) { unsigned int len; struct ieee80211_hdr *hdr; int rts_rate; @@ -319,7 +331,7 @@ static int generate_txhdr_fw3(struct b43legacy_wldev *dev, if (rts_rate_fb_ofdm) mac_ctl |= B43legacy_TX4_MAC_CTSFALLBACKOFDM; - if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) { + if (rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { ieee80211_ctstoself_get(dev->wl->hw, info->control.vif, fragment_data, @@ -362,7 +374,7 @@ int b43legacy_generate_txhdr(struct b43legacy_wldev *dev, u8 *txhdr, const unsigned char *fragment_data, unsigned int fragment_len, - const struct ieee80211_tx_info *info, + struct ieee80211_tx_info *info, u16 cookie) { return generate_txhdr_fw3(dev, (struct b43legacy_txhdr_fw3 *)txhdr, diff --git a/drivers/net/wireless/b43legacy/xmit.h b/drivers/net/wireless/b43legacy/xmit.h index e56777e0feab..62e09d02788f 100644 --- a/drivers/net/wireless/b43legacy/xmit.h +++ b/drivers/net/wireless/b43legacy/xmit.h @@ -80,7 +80,7 @@ int b43legacy_generate_txhdr(struct b43legacy_wldev *dev, u8 *txhdr, const unsigned char *fragment_data, unsigned int fragment_len, - const struct ieee80211_tx_info *info, + struct ieee80211_tx_info *info, u16 cookie); diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c index c25daec4f93d..f440ed0fe543 100644 --- a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c +++ b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c @@ -422,34 +422,6 @@ static void rs_free_sta(void *priv, struct ieee80211_sta *sta, } -/* - * get ieee prev rate from rate scale table. - * for A and B mode we need to overright prev - * value - */ -static int rs_adjust_next_rate(struct iwl3945_priv *priv, int rate) -{ - int next_rate = iwl3945_get_prev_ieee_rate(rate); - - switch (priv->band) { - case IEEE80211_BAND_5GHZ: - if (rate == IWL_RATE_12M_INDEX) - next_rate = IWL_RATE_9M_INDEX; - else if (rate == IWL_RATE_6M_INDEX) - next_rate = IWL_RATE_6M_INDEX; - break; -/* XXX cannot be invoked in current mac80211 so not a regression - case MODE_IEEE80211B: - if (rate == IWL_RATE_11M_INDEX_TABLE) - next_rate = IWL_RATE_5M_INDEX_TABLE; - break; - */ - default: - break; - } - - return next_rate; -} /** * rs_tx_status - Update rate control values based on Tx results * @@ -460,17 +432,21 @@ static void rs_tx_status(void *priv_rate, struct ieee80211_supported_band *sband struct ieee80211_sta *sta, void *priv_sta, struct sk_buff *skb) { - u8 retries, current_count; + u8 retries = 0, current_count; int scale_rate_index, first_index, last_index; unsigned long flags; struct iwl3945_priv *priv = (struct iwl3945_priv *)priv_rate; struct iwl3945_rs_sta *rs_sta = priv_sta; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + int i; IWL_DEBUG_RATE("enter\n"); - retries = info->status.retry_count; - first_index = sband->bitrates[info->tx_rate_idx].hw_value; + for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) + retries += info->status.rates[i].count; + retries--; + + first_index = sband->bitrates[info->status.rates[0].idx].hw_value; if ((first_index < 0) || (first_index >= IWL_RATE_COUNT)) { IWL_DEBUG_RATE("leave: Rate out of bounds: %d\n", first_index); return; @@ -502,7 +478,7 @@ static void rs_tx_status(void *priv_rate, struct ieee80211_supported_band *sband last_index = scale_rate_index; } else { current_count = priv->retry_rate; - last_index = rs_adjust_next_rate(priv, + last_index = iwl3945_rs_next_rate(priv, scale_rate_index); } @@ -518,7 +494,7 @@ static void rs_tx_status(void *priv_rate, struct ieee80211_supported_band *sband if (retries) scale_rate_index = - rs_adjust_next_rate(priv, scale_rate_index); + iwl3945_rs_next_rate(priv, scale_rate_index); } @@ -630,10 +606,11 @@ static u16 iwl3945_get_adjacent_rate(struct iwl3945_rs_sta *rs_sta, * rate table and must reference the driver allocated rate table * */ -static void rs_get_rate(void *priv_r, struct ieee80211_supported_band *sband, - struct ieee80211_sta *sta, void *priv_sta, - struct sk_buff *skb, struct rate_selection *sel) +static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta, + void *priv_sta, struct ieee80211_tx_rate_control *txrc) { + struct ieee80211_supported_band *sband = txrc->sband; + struct sk_buff *skb = txrc->skb; u8 low = IWL_RATE_INVALID; u8 high = IWL_RATE_INVALID; u16 high_low; @@ -649,6 +626,7 @@ static void rs_get_rate(void *priv_r, struct ieee80211_supported_band *sband, struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; u16 fc, rate_mask; struct iwl3945_priv *priv = (struct iwl3945_priv *)priv_r; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); IWL_DEBUG_RATE("enter\n"); @@ -659,7 +637,7 @@ static void rs_get_rate(void *priv_r, struct ieee80211_supported_band *sband, is_multicast_ether_addr(hdr->addr1) || !sta || !priv_sta) { IWL_DEBUG_RATE("leave: No STA priv data to update!\n"); - sel->rate_idx = rate_lowest_index(sband, sta); + info->control.rates[0].idx = rate_lowest_index(sband, sta); return; } @@ -792,9 +770,10 @@ static void rs_get_rate(void *priv_r, struct ieee80211_supported_band *sband, rs_sta->last_txrate_idx = index; if (sband->band == IEEE80211_BAND_5GHZ) - sel->rate_idx = rs_sta->last_txrate_idx - IWL_FIRST_OFDM_RATE; + info->control.rates[0].idx = rs_sta->last_txrate_idx - + IWL_FIRST_OFDM_RATE; else - sel->rate_idx = rs_sta->last_txrate_idx; + info->control.rates[0].idx = rs_sta->last_txrate_idx; IWL_DEBUG_RATE("leave: %d\n", index); } diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c index 8a00245be51e..7afafb629706 100644 --- a/drivers/net/wireless/iwlwifi/iwl-3945.c +++ b/drivers/net/wireless/iwlwifi/iwl-3945.c @@ -261,6 +261,35 @@ static inline const char *iwl3945_get_tx_fail_reason(u32 status) } #endif +/* + * get ieee prev rate from rate scale table. + * for A and B mode we need to overright prev + * value + */ +int iwl3945_rs_next_rate(struct iwl3945_priv *priv, int rate) +{ + int next_rate = iwl3945_get_prev_ieee_rate(rate); + + switch (priv->band) { + case IEEE80211_BAND_5GHZ: + if (rate == IWL_RATE_12M_INDEX) + next_rate = IWL_RATE_9M_INDEX; + else if (rate == IWL_RATE_6M_INDEX) + next_rate = IWL_RATE_6M_INDEX; + break; +/* XXX cannot be invoked in current mac80211 so not a regression + case MODE_IEEE80211B: + if (rate == IWL_RATE_11M_INDEX_TABLE) + next_rate = IWL_RATE_5M_INDEX_TABLE; + break; + */ + default: + break; + } + + return next_rate; +} + /** * iwl3945_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd @@ -308,6 +337,7 @@ static void iwl3945_rx_reply_tx(struct iwl3945_priv *priv, struct iwl3945_tx_resp *tx_resp = (void *)&pkt->u.raw[0]; u32 status = le32_to_cpu(tx_resp->status); int rate_idx; + int fail, i; if ((index >= txq->q.n_bd) || (iwl3945_x2_queue_used(&txq->q, index) == 0)) { IWL_ERROR("Read index for DMA queue txq_id (%d) index %d " @@ -318,9 +348,36 @@ static void iwl3945_rx_reply_tx(struct iwl3945_priv *priv, } info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb[0]); - memset(&info->status, 0, sizeof(info->status)); + ieee80211_tx_info_clear_status(info); + + /* Fill the MRR chain with some info about on-chip retransmissions */ + rate_idx = iwl3945_hwrate_to_plcp_idx(tx_resp->rate); + if (info->band == IEEE80211_BAND_5GHZ) + rate_idx -= IWL_FIRST_OFDM_RATE; + + fail = tx_resp->failure_frame; + for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { + int next = iwl3945_rs_next_rate(priv, rate_idx); + + info->status.rates[i].idx = rate_idx; + + /* + * Put remaining into the last count as best approximation + * of saying exactly what the hardware would have done... + */ + if ((rate_idx == next) || (i == IEEE80211_TX_MAX_RATES - 1)) { + info->status.rates[i].count = fail; + break; + } + + info->status.rates[i].count = priv->retry_rate; + fail -= priv->retry_rate; + rate_idx = next; + if (fail <= 0) + break; + } + info->status.rates[i].count++; /* add final attempt */ - info->status.retry_count = tx_resp->failure_frame; /* tx_status->rts_retry_count = tx_resp->failure_rts; */ info->flags |= ((status & TX_STATUS_MSK) == TX_STATUS_SUCCESS) ? IEEE80211_TX_STAT_ACK : 0; @@ -329,10 +386,6 @@ static void iwl3945_rx_reply_tx(struct iwl3945_priv *priv, txq_id, iwl3945_get_tx_fail_reason(status), status, tx_resp->rate, tx_resp->failure_frame); - rate_idx = iwl3945_hwrate_to_plcp_idx(tx_resp->rate); - if (info->band == IEEE80211_BAND_5GHZ) - rate_idx -= IWL_FIRST_OFDM_RATE; - info->tx_rate_idx = rate_idx; IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index); iwl3945_tx_queue_reclaim(priv, txq_id, index); diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.h b/drivers/net/wireless/iwlwifi/iwl-3945.h index bdd32475b99c..592c5958723b 100644 --- a/drivers/net/wireless/iwlwifi/iwl-3945.h +++ b/drivers/net/wireless/iwlwifi/iwl-3945.h @@ -954,6 +954,8 @@ static inline int is_channel_ibss(const struct iwl3945_channel_info *ch) extern const struct iwl3945_channel_info *iwl3945_get_channel_info( const struct iwl3945_priv *priv, enum ieee80211_band band, u16 channel); +extern int iwl3945_rs_next_rate(struct iwl3945_priv *priv, int rate); + /* Requires full declaration of iwl3945_priv before including */ #include "iwl-3945-io.h" diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c index 9838de5f4369..222c2baa95ca 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965.c +++ b/drivers/net/wireless/iwlwifi/iwl-4965.c @@ -619,10 +619,10 @@ static void iwl4965_gain_computation(struct iwl_priv *priv, static void iwl4965_rts_tx_cmd_flag(struct ieee80211_tx_info *info, __le32 *tx_flags) { - if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) { + if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) { *tx_flags |= TX_CMD_FLG_RTS_MSK; *tx_flags &= ~TX_CMD_FLG_CTS_MSK; - } else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) { + } else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { *tx_flags &= ~TX_CMD_FLG_RTS_MSK; *tx_flags |= TX_CMD_FLG_CTS_MSK; } @@ -2070,7 +2070,7 @@ static int iwl4965_tx_status_reply_tx(struct iwl_priv *priv, agg->frame_count, agg->start_idx, idx); info = IEEE80211_SKB_CB(priv->txq[txq_id].txb[idx].skb[0]); - info->status.retry_count = tx_resp->failure_frame; + info->status.rates[0].count = tx_resp->failure_frame + 1; info->flags &= ~IEEE80211_TX_CTL_AMPDU; info->flags |= iwl_is_tx_success(status)? IEEE80211_TX_STAT_ACK : 0; @@ -2227,7 +2227,7 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv, iwl_txq_check_empty(priv, sta_id, tid, txq_id); } } else { - info->status.retry_count = tx_resp->failure_frame; + info->status.rates[0].count = tx_resp->failure_frame + 1; info->flags |= iwl_is_tx_success(status) ? IEEE80211_TX_STAT_ACK : 0; iwl_hwrate_to_tx_control(priv, diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c index 56a3f0c84a1e..d5282fa65084 100644 --- a/drivers/net/wireless/iwlwifi/iwl-5000.c +++ b/drivers/net/wireless/iwlwifi/iwl-5000.c @@ -390,8 +390,8 @@ static void iwl5000_chain_noise_reset(struct iwl_priv *priv) static void iwl5000_rts_tx_cmd_flag(struct ieee80211_tx_info *info, __le32 *tx_flags) { - if ((info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) || - (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)) + if ((info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) || + (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)) *tx_flags |= TX_CMD_FLG_RTS_CTS_MSK; else *tx_flags &= ~TX_CMD_FLG_RTS_CTS_MSK; @@ -1154,7 +1154,7 @@ static int iwl5000_tx_status_reply_tx(struct iwl_priv *priv, agg->frame_count, agg->start_idx, idx); info = IEEE80211_SKB_CB(priv->txq[txq_id].txb[idx].skb[0]); - info->status.retry_count = tx_resp->failure_frame; + info->status.rates[0].count = tx_resp->failure_frame + 1; info->flags &= ~IEEE80211_TX_CTL_AMPDU; info->flags |= iwl_is_tx_success(status)? IEEE80211_TX_STAT_ACK : 0; @@ -1307,7 +1307,7 @@ static void iwl5000_rx_reply_tx(struct iwl_priv *priv, iwl_txq_check_empty(priv, sta_id, tid, txq_id); } } else { - info->status.retry_count = tx_resp->failure_frame; + info->status.rates[0].count = tx_resp->failure_frame + 1; info->flags = iwl_is_tx_success(status) ? IEEE80211_TX_STAT_ACK : 0; iwl_hwrate_to_tx_control(priv, diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c index e10e0ca09ce9..f685e5d6c281 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c @@ -798,7 +798,7 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband, !(info->flags & IEEE80211_TX_STAT_AMPDU)) return; - retries = info->status.retry_count; + retries = info->status.rates[0].count - 1; if (retries > 15) retries = 15; @@ -830,20 +830,15 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband, if (priv->band == IEEE80211_BAND_5GHZ) rs_index -= IWL_FIRST_OFDM_RATE; - if ((info->tx_rate_idx < 0) || - (tbl_type.is_SGI ^ - !!(info->flags & IEEE80211_TX_CTL_SHORT_GI)) || - (tbl_type.is_fat ^ - !!(info->flags & IEEE80211_TX_CTL_40_MHZ_WIDTH)) || - (tbl_type.is_dup ^ - !!(info->flags & IEEE80211_TX_CTL_DUP_DATA)) || - (tbl_type.ant_type ^ info->antenna_sel_tx) || - (!!(tx_rate & RATE_MCS_HT_MSK) ^ - !!(info->flags & IEEE80211_TX_CTL_OFDM_HT)) || - (!!(tx_rate & RATE_MCS_GF_MSK) ^ - !!(info->flags & IEEE80211_TX_CTL_GREEN_FIELD)) || + if ((info->status.rates[0].idx < 0) || + (tbl_type.is_SGI != !!(info->status.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)) || + (tbl_type.is_fat != !!(info->status.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)) || + (tbl_type.is_dup != !!(info->status.rates[0].flags & IEEE80211_TX_RC_DUP_DATA)) || + (tbl_type.ant_type != info->antenna_sel_tx) || + (!!(tx_rate & RATE_MCS_HT_MSK) != !!(info->status.rates[0].flags & IEEE80211_TX_RC_MCS)) || + (!!(tx_rate & RATE_MCS_GF_MSK) != !!(info->status.rates[0].flags & IEEE80211_TX_RC_GREEN_FIELD)) || (hw->wiphy->bands[priv->band]->bitrates[rs_index].bitrate != - hw->wiphy->bands[info->band]->bitrates[info->tx_rate_idx].bitrate)) { + hw->wiphy->bands[info->band]->bitrates[info->status.rates[0].idx].bitrate)) { IWL_DEBUG_RATE("initial rate does not match 0x%x\n", tx_rate); goto out; } @@ -2098,15 +2093,17 @@ static void rs_initialize_lq(struct iwl_priv *priv, return; } -static void rs_get_rate(void *priv_r, struct ieee80211_supported_band *sband, - struct ieee80211_sta *sta, void *priv_sta, - struct sk_buff *skb, struct rate_selection *sel) +static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta, void *priv_sta, + struct ieee80211_tx_rate_control *txrc) { int i; + struct sk_buff *skb = txrc->skb; + struct ieee80211_supported_band *sband = txrc->sband; struct iwl_priv *priv = (struct iwl_priv *)priv_r; struct ieee80211_conf *conf = &priv->hw->conf; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); __le16 fc; struct iwl_lq_sta *lq_sta; @@ -2117,7 +2114,7 @@ static void rs_get_rate(void *priv_r, struct ieee80211_supported_band *sband, fc = hdr->frame_control; if (!ieee80211_is_data(fc) || is_multicast_ether_addr(hdr->addr1) || !sta || !priv_sta) { - sel->rate_idx = rate_lowest_index(sband, sta); + info->control.rates[0].idx = rate_lowest_index(sband, sta); return; } @@ -2143,13 +2140,13 @@ static void rs_get_rate(void *priv_r, struct ieee80211_supported_band *sband, } if ((i < 0) || (i > IWL_RATE_COUNT)) { - sel->rate_idx = rate_lowest_index(sband, sta); + info->control.rates[0].idx = rate_lowest_index(sband, sta); return; } if (sband->band == IEEE80211_BAND_5GHZ) i -= IWL_FIRST_OFDM_RATE; - sel->rate_idx = i; + info->control.rates[0].idx = i; } static void *rs_alloc_sta(void *priv_rate, struct ieee80211_sta *sta, diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index 10f5a0a233fe..2c4162e48140 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -88,26 +88,27 @@ EXPORT_SYMBOL(iwl_rates); * translate ucode response to mac80211 tx status control values */ void iwl_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags, - struct ieee80211_tx_info *control) + struct ieee80211_tx_info *info) { int rate_index; + struct ieee80211_tx_rate *r = &info->control.rates[0]; - control->antenna_sel_tx = + info->antenna_sel_tx = ((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS); if (rate_n_flags & RATE_MCS_HT_MSK) - control->flags |= IEEE80211_TX_CTL_OFDM_HT; + r->flags |= IEEE80211_TX_RC_MCS; if (rate_n_flags & RATE_MCS_GF_MSK) - control->flags |= IEEE80211_TX_CTL_GREEN_FIELD; + r->flags |= IEEE80211_TX_RC_GREEN_FIELD; if (rate_n_flags & RATE_MCS_FAT_MSK) - control->flags |= IEEE80211_TX_CTL_40_MHZ_WIDTH; + r->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH; if (rate_n_flags & RATE_MCS_DUP_MSK) - control->flags |= IEEE80211_TX_CTL_DUP_DATA; + r->flags |= IEEE80211_TX_RC_DUP_DATA; if (rate_n_flags & RATE_MCS_SGI_MSK) - control->flags |= IEEE80211_TX_CTL_SHORT_GI; + r->flags |= IEEE80211_TX_RC_SHORT_GI; rate_index = iwl_hwrate_to_plcp_idx(rate_n_flags); - if (control->band == IEEE80211_BAND_5GHZ) + if (info->band == IEEE80211_BAND_5GHZ) rate_index -= IWL_FIRST_OFDM_RATE; - control->tx_rate_idx = rate_index; + r->idx = rate_index; } EXPORT_SYMBOL(iwl_hwrate_to_tx_control); diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c index b1464c71ea0a..2cd33b4e9e13 100644 --- a/drivers/net/wireless/iwlwifi/iwl3945-base.c +++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c @@ -2395,6 +2395,7 @@ static void iwl3945_build_tx_cmd_basic(struct iwl3945_priv *priv, { __le16 fc = hdr->frame_control; __le32 tx_flags = cmd->cmd.tx.tx_flags; + u8 rc_flags = info->control.rates[0].flags; cmd->cmd.tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) { @@ -2421,10 +2422,10 @@ static void iwl3945_build_tx_cmd_basic(struct iwl3945_priv *priv, tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; } - if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) { + if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) { tx_flags |= TX_CMD_FLG_RTS_MSK; tx_flags &= ~TX_CMD_FLG_CTS_MSK; - } else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) { + } else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { tx_flags &= ~TX_CMD_FLG_RTS_MSK; tx_flags |= TX_CMD_FLG_CTS_MSK; } diff --git a/drivers/net/wireless/libertas_tf/main.c b/drivers/net/wireless/libertas_tf/main.c index 241ddcfa352e..d1fc305de5fe 100644 --- a/drivers/net/wireless/libertas_tf/main.c +++ b/drivers/net/wireless/libertas_tf/main.c @@ -592,14 +592,14 @@ EXPORT_SYMBOL_GPL(lbtf_remove_card); void lbtf_send_tx_feedback(struct lbtf_private *priv, u8 retrycnt, u8 fail) { struct ieee80211_tx_info *info = IEEE80211_SKB_CB(priv->tx_skb); - memset(&info->status, 0, sizeof(info->status)); + + ieee80211_tx_info_clear_status(info); /* * Commented out, otherwise we never go beyond 1Mbit/s using mac80211 * default pid rc algorithm. * * info->status.retry_count = MRVL_DEFAULT_RETRIES - retrycnt; */ - info->status.excessive_retries = fail ? 1 : 0; if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) && !fail) info->flags |= IEEE80211_TX_STAT_ACK; skb_pull(priv->tx_skb, sizeof(struct txpd)); diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index e2aeef8de707..c57652325286 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -209,7 +209,7 @@ static bool mac80211_hwsim_tx_frame(struct ieee80211_hw *hw, /* TODO: set mactime */ rx_status.freq = data->channel->center_freq; rx_status.band = data->channel->band; - rx_status.rate_idx = info->tx_rate_idx; + rx_status.rate_idx = info->control.rates[0].idx; /* TODO: simulate signal strength (and optional packet drop) */ /* Copy skb to all enabled radios that are on the current frequency */ @@ -269,13 +269,9 @@ static int mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb) if (txi->control.sta) hwsim_check_sta_magic(txi->control.sta); - memset(&txi->status, 0, sizeof(txi->status)); - if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK)) { - if (ack) - txi->flags |= IEEE80211_TX_STAT_ACK; - else - txi->status.excessive_retries = 1; - } + ieee80211_tx_info_clear_status(txi); + if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack) + txi->flags |= IEEE80211_TX_STAT_ACK; ieee80211_tx_status_irqsafe(hw, skb); return NETDEV_TX_OK; } diff --git a/drivers/net/wireless/p54/p54common.c b/drivers/net/wireless/p54/p54common.c index 81a9756254fb..65be5eca2340 100644 --- a/drivers/net/wireless/p54/p54common.c +++ b/drivers/net/wireless/p54/p54common.c @@ -548,7 +548,7 @@ static void p54_rx_frame_sent(struct ieee80211_hw *dev, struct sk_buff *skb) spin_lock_irqsave(&priv->tx_queue.lock, flags); while (entry != (struct sk_buff *)&priv->tx_queue) { struct ieee80211_tx_info *info = IEEE80211_SKB_CB(entry); - range = (void *)info->driver_data; + range = (void *)info->rate_driver_data; if (range->start_addr == addr) { struct p54_control_hdr *entry_hdr; struct p54_tx_control_allocdata *entry_data; @@ -559,7 +559,7 @@ static void p54_rx_frame_sent(struct ieee80211_hw *dev, struct sk_buff *skb) struct memrecord *mr; ni = IEEE80211_SKB_CB(entry->next); - mr = (struct memrecord *)ni->driver_data; + mr = (struct memrecord *)ni->rate_driver_data; freed = mr->start_addr - last_addr; } else freed = priv->rx_end - last_addr; @@ -568,7 +568,7 @@ static void p54_rx_frame_sent(struct ieee80211_hw *dev, struct sk_buff *skb) __skb_unlink(entry, &priv->tx_queue); spin_unlock_irqrestore(&priv->tx_queue.lock, flags); - memset(&info->status, 0, sizeof(info->status)); + ieee80211_tx_info_clear_status(info); entry_hdr = (struct p54_control_hdr *) entry->data; entry_data = (struct p54_tx_control_allocdata *) entry_hdr->data; if ((entry_hdr->magic1 & cpu_to_le16(0x4000)) != 0) @@ -578,10 +578,8 @@ static void p54_rx_frame_sent(struct ieee80211_hw *dev, struct sk_buff *skb) if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) { if (!(payload->status & 0x01)) info->flags |= IEEE80211_TX_STAT_ACK; - else - info->status.excessive_retries = 1; } - info->status.retry_count = payload->retries - 1; + info->status.rates[0].count = payload->retries; info->status.ack_signal = p54_rssi_to_dbm(dev, le16_to_cpu(payload->ack_rssi)); skb_pull(entry, sizeof(*hdr) + pad + sizeof(*entry_data)); @@ -699,7 +697,7 @@ static void p54_assign_address(struct ieee80211_hw *dev, struct sk_buff *skb, while (left--) { u32 hole_size; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(entry); - struct memrecord *range = (void *)info->driver_data; + struct memrecord *range = (void *)info->rate_driver_data; hole_size = range->start_addr - last_addr; if (!target_skb && hole_size >= len) { target_skb = entry->prev; @@ -715,7 +713,7 @@ static void p54_assign_address(struct ieee80211_hw *dev, struct sk_buff *skb, largest_hole = max(largest_hole, priv->rx_end - last_addr - len); if (!skb_queue_empty(&priv->tx_queue)) { struct ieee80211_tx_info *info = IEEE80211_SKB_CB(target_skb); - struct memrecord *range = (void *)info->driver_data; + struct memrecord *range = (void *)info->rate_driver_data; target_addr = range->end_addr; } } else @@ -723,7 +721,7 @@ static void p54_assign_address(struct ieee80211_hw *dev, struct sk_buff *skb, if (skb) { struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - struct memrecord *range = (void *)info->driver_data; + struct memrecord *range = (void *)info->rate_driver_data; range->start_addr = target_addr; range->end_addr = target_addr + len; __skb_queue_after(&priv->tx_queue, target_skb, skb); @@ -806,6 +804,7 @@ static int p54_tx(struct ieee80211_hw *dev, struct sk_buff *skb) size_t padding, len; u8 rate; u8 cts_rate = 0x20; + u8 rc_flags; current_queue = &priv->tx_stats[skb_get_queue_mapping(skb) + 4]; if (unlikely(current_queue->len > current_queue->limit)) @@ -828,18 +827,19 @@ static int p54_tx(struct ieee80211_hw *dev, struct sk_buff *skb) hdr->magic1 = cpu_to_le16(0x0010); hdr->len = cpu_to_le16(len); hdr->type = (info->flags & IEEE80211_TX_CTL_NO_ACK) ? 0 : cpu_to_le16(1); - hdr->retry1 = hdr->retry2 = info->control.retry_limit; + hdr->retry1 = hdr->retry2 = info->control.rates[0].count; /* TODO: add support for alternate retry TX rates */ rate = ieee80211_get_tx_rate(dev, info)->hw_value; - if (info->flags & IEEE80211_TX_CTL_SHORT_PREAMBLE) { + rc_flags = info->control.rates[0].flags; + if (rc_flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) { rate |= 0x10; cts_rate |= 0x10; } - if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) { + if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) { rate |= 0x40; cts_rate |= ieee80211_get_rts_cts_rate(dev, info)->hw_value; - } else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) { + } else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { rate |= 0x20; cts_rate |= ieee80211_get_rts_cts_rate(dev, info)->hw_value; } diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c index 697806cf94e2..e1feab8b6b02 100644 --- a/drivers/net/wireless/rt2x00/rt2x00dev.c +++ b/drivers/net/wireless/rt2x00/rt2x00dev.c @@ -498,7 +498,9 @@ void rt2x00lib_txdone(struct queue_entry *entry, { struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev; struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb); + struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb); enum data_queue_qid qid = skb_get_queue_mapping(entry->skb); + u8 rate_idx, rate_flags; /* * Unmap the skb. @@ -528,14 +530,18 @@ void rt2x00lib_txdone(struct queue_entry *entry, rt2x00dev->link.qual.tx_failed += test_bit(TXDONE_FAILURE, &txdesc->flags); + rate_idx = skbdesc->tx_rate_idx; + rate_flags = skbdesc->tx_rate_flags; + /* * Initialize TX status */ memset(&tx_info->status, 0, sizeof(tx_info->status)); tx_info->status.ack_signal = 0; - tx_info->status.excessive_retries = - test_bit(TXDONE_EXCESSIVE_RETRY, &txdesc->flags); - tx_info->status.retry_count = txdesc->retry; + tx_info->status.rates[0].idx = rate_idx; + tx_info->status.rates[0].flags = rate_flags; + tx_info->status.rates[0].count = txdesc->retry + 1; + tx_info->status.rates[1].idx = -1; /* terminate */ if (!(tx_info->flags & IEEE80211_TX_CTL_NO_ACK)) { if (test_bit(TXDONE_SUCCESS, &txdesc->flags)) @@ -544,7 +550,7 @@ void rt2x00lib_txdone(struct queue_entry *entry, rt2x00dev->low_level_stats.dot11ACKFailureCount++; } - if (tx_info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) { + if (rate_flags & IEEE80211_TX_RC_USE_RTS_CTS) { if (test_bit(TXDONE_SUCCESS, &txdesc->flags)) rt2x00dev->low_level_stats.dot11RTSSuccessCount++; else if (test_bit(TXDONE_FAILURE, &txdesc->flags)) diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c index 931183369f07..b32d59eafaa3 100644 --- a/drivers/net/wireless/rt2x00/rt2x00mac.c +++ b/drivers/net/wireless/rt2x00/rt2x00mac.c @@ -39,7 +39,7 @@ static int rt2x00mac_tx_rts_cts(struct rt2x00_dev *rt2x00dev, unsigned int data_length; int retval = 0; - if (tx_info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) + if (tx_info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) data_length = sizeof(struct ieee80211_cts); else data_length = sizeof(struct ieee80211_rts); @@ -64,11 +64,11 @@ static int rt2x00mac_tx_rts_cts(struct rt2x00_dev *rt2x00dev, */ memcpy(skb->cb, frag_skb->cb, sizeof(skb->cb)); rts_info = IEEE80211_SKB_CB(skb); - rts_info->flags &= ~IEEE80211_TX_CTL_USE_RTS_CTS; - rts_info->flags &= ~IEEE80211_TX_CTL_USE_CTS_PROTECT; + rts_info->control.rates[0].flags &= ~IEEE80211_TX_RC_USE_RTS_CTS; + rts_info->control.rates[0].flags &= ~IEEE80211_TX_RC_USE_CTS_PROTECT; rts_info->flags &= ~IEEE80211_TX_CTL_REQ_TX_STATUS; - if (tx_info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) + if (tx_info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) rts_info->flags |= IEEE80211_TX_CTL_NO_ACK; else rts_info->flags &= ~IEEE80211_TX_CTL_NO_ACK; @@ -84,7 +84,7 @@ static int rt2x00mac_tx_rts_cts(struct rt2x00_dev *rt2x00dev, data_length += rt2x00crypto_tx_overhead(tx_info); #endif /* CONFIG_RT2X00_LIB_CRYPTO */ - if (tx_info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) + if (tx_info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) ieee80211_ctstoself_get(rt2x00dev->hw, tx_info->control.vif, frag_skb->data, data_length, tx_info, (struct ieee80211_cts *)(skb->data)); @@ -146,8 +146,8 @@ int rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) * inside the hardware. */ frame_control = le16_to_cpu(ieee80211hdr->frame_control); - if ((tx_info->flags & (IEEE80211_TX_CTL_USE_RTS_CTS | - IEEE80211_TX_CTL_USE_CTS_PROTECT)) && + if ((tx_info->control.rates[0].flags & (IEEE80211_TX_RC_USE_RTS_CTS | + IEEE80211_TX_RC_USE_CTS_PROTECT)) && !rt2x00dev->ops->hw->set_rts_threshold) { if (rt2x00queue_available(queue) <= 1) goto exit_fail; diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c index 451d410ecdae..070786ebd076 100644 --- a/drivers/net/wireless/rt2x00/rt2x00queue.c +++ b/drivers/net/wireless/rt2x00/rt2x00queue.c @@ -230,8 +230,15 @@ static void rt2x00queue_create_tx_descriptor(struct queue_entry *entry, /* * Determine retry information. */ - txdesc->retry_limit = tx_info->control.retry_limit; - if (tx_info->flags & IEEE80211_TX_CTL_LONG_RETRY_LIMIT) + txdesc->retry_limit = tx_info->control.rates[0].count - 1; + /* + * XXX: If at this point we knew whether the HW is going to use + * the RETRY_MODE bit or the retry_limit (currently all + * use the RETRY_MODE bit) we could do something like b43 + * does, set the RETRY_MODE bit when the RC algorithm is + * requesting more than the long retry limit. + */ + if (tx_info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) __set_bit(ENTRY_TXD_RETRY_MODE, &txdesc->flags); /* @@ -371,10 +378,12 @@ static void rt2x00queue_write_tx_descriptor(struct queue_entry *entry, int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb) { + struct ieee80211_tx_info *tx_info; struct queue_entry *entry = rt2x00queue_get_entry(queue, Q_INDEX); struct txentry_desc txdesc; struct skb_frame_desc *skbdesc; unsigned int iv_len = 0; + u8 rate_idx, rate_flags; if (unlikely(rt2x00queue_full(queue))) return -EINVAL; @@ -399,13 +408,18 @@ int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb) iv_len = IEEE80211_SKB_CB(skb)->control.hw_key->iv_len; /* - * All information is retreived from the skb->cb array, + * All information is retrieved from the skb->cb array, * now we should claim ownership of the driver part of that - * array. + * array, preserving the bitrate index and flags. */ + tx_info = IEEE80211_SKB_CB(skb); + rate_idx = tx_info->control.rates[0].idx; + rate_flags = tx_info->control.rates[0].flags; skbdesc = get_skb_frame_desc(entry->skb); memset(skbdesc, 0, sizeof(*skbdesc)); skbdesc->entry = entry; + skbdesc->tx_rate_idx = rate_idx; + skbdesc->tx_rate_flags = rate_flags; /* * When hardware encryption is supported, and this frame diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.h b/drivers/net/wireless/rt2x00/rt2x00queue.h index 9dbf04f0f04c..4d3c7246f9ae 100644 --- a/drivers/net/wireless/rt2x00/rt2x00queue.h +++ b/drivers/net/wireless/rt2x00/rt2x00queue.h @@ -104,6 +104,8 @@ enum skb_frame_desc_flags { * * @flags: Frame flags, see &enum skb_frame_desc_flags. * @desc_len: Length of the frame descriptor. + * @tx_rate_idx: the index of the TX rate, used for TX status reporting + * @tx_rate_flags: the TX rate flags, used for TX status reporting * @desc: Pointer to descriptor part of the frame. * Note that this pointer could point to something outside * of the scope of the skb->data pointer. @@ -113,9 +115,12 @@ enum skb_frame_desc_flags { * @entry: The entry to which this sk buffer belongs. */ struct skb_frame_desc { - unsigned int flags; + u8 flags; + + u8 desc_len; + u8 tx_rate_idx; + u8 tx_rate_flags; - unsigned int desc_len; void *desc; __le32 iv; diff --git a/drivers/net/wireless/rtl8180_dev.c b/drivers/net/wireless/rtl8180_dev.c index e8d22393797f..6c226c024dd9 100644 --- a/drivers/net/wireless/rtl8180_dev.c +++ b/drivers/net/wireless/rtl8180_dev.c @@ -182,15 +182,13 @@ static void rtl8180_handle_tx(struct ieee80211_hw *dev, unsigned int prio) skb->len, PCI_DMA_TODEVICE); info = IEEE80211_SKB_CB(skb); - memset(&info->status, 0, sizeof(info->status)); + ieee80211_tx_info_clear_status(info); - if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) { - if (flags & RTL818X_TX_DESC_FLAG_TX_OK) - info->flags |= IEEE80211_TX_STAT_ACK; - else - info->status.excessive_retries = 1; - } - info->status.retry_count = flags & 0xFF; + if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) && + (flags & RTL818X_TX_DESC_FLAG_TX_OK)) + info->flags |= IEEE80211_TX_STAT_ACK; + + info->status.rates[0].count = (flags & 0xFF) + 1; ieee80211_tx_status_irqsafe(dev, skb); if (ring->entries - skb_queue_len(&ring->queue) == 2) @@ -243,6 +241,7 @@ static int rtl8180_tx(struct ieee80211_hw *dev, struct sk_buff *skb) unsigned int idx, prio; dma_addr_t mapping; u32 tx_flags; + u8 rc_flags; u16 plcp_len = 0; __le16 rts_duration = 0; @@ -261,15 +260,16 @@ static int rtl8180_tx(struct ieee80211_hw *dev, struct sk_buff *skb) tx_flags |= RTL818X_TX_DESC_FLAG_DMA | RTL818X_TX_DESC_FLAG_NO_ENC; - if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) { + rc_flags = info->control.rates[0].flags; + if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) { tx_flags |= RTL818X_TX_DESC_FLAG_RTS; tx_flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19; - } else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) { + } else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { tx_flags |= RTL818X_TX_DESC_FLAG_CTS; tx_flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19; } - if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) + if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) rts_duration = ieee80211_rts_duration(dev, priv->vif, skb->len, info); @@ -292,9 +292,9 @@ static int rtl8180_tx(struct ieee80211_hw *dev, struct sk_buff *skb) entry->plcp_len = cpu_to_le16(plcp_len); entry->tx_buf = cpu_to_le32(mapping); entry->frame_len = cpu_to_le32(skb->len); - entry->flags2 = info->control.retries[0].rate_idx >= 0 ? + entry->flags2 = info->control.rates[1].idx >= 0 ? ieee80211_get_alt_retry_rate(dev, info, 0)->bitrate << 4 : 0; - entry->retry_limit = info->control.retry_limit; + entry->retry_limit = info->control.rates[0].count; entry->flags = cpu_to_le32(tx_flags); __skb_queue_tail(&ring->queue, skb); if (ring->entries - skb_queue_len(&ring->queue) < 2) @@ -855,7 +855,7 @@ static int __devinit rtl8180_probe(struct pci_dev *pdev, priv = dev->priv; priv->pdev = pdev; - dev->max_altrates = 1; + dev->max_rates = 2; SET_IEEE80211_DEV(dev, &pdev->dev); pci_set_drvdata(pdev, dev); diff --git a/drivers/net/wireless/rtl8187_dev.c b/drivers/net/wireless/rtl8187_dev.c index cd839bcb6d78..6260ed8ce12b 100644 --- a/drivers/net/wireless/rtl8187_dev.c +++ b/drivers/net/wireless/rtl8187_dev.c @@ -160,13 +160,13 @@ static void rtl8187_tx_cb(struct urb *urb) { struct sk_buff *skb = (struct sk_buff *)urb->context; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - struct ieee80211_hw *hw = info->driver_data[0]; + struct ieee80211_hw *hw = info->rate_driver_data[0]; struct rtl8187_priv *priv = hw->priv; - usb_free_urb(info->driver_data[1]); + usb_free_urb(info->rate_driver_data[1]); skb_pull(skb, priv->is_rtl8187b ? sizeof(struct rtl8187b_tx_hdr) : sizeof(struct rtl8187_tx_hdr)); - memset(&info->status, 0, sizeof(info->status)); + ieee80211_tx_info_clear_status(info); info->flags |= IEEE80211_TX_STAT_ACK; ieee80211_tx_status_irqsafe(hw, skb); } @@ -194,12 +194,12 @@ static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb) flags |= ieee80211_get_tx_rate(dev, info)->hw_value << 24; if (ieee80211_has_morefrags(((struct ieee80211_hdr *)skb->data)->frame_control)) flags |= RTL818X_TX_DESC_FLAG_MOREFRAG; - if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) { + if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) { flags |= RTL818X_TX_DESC_FLAG_RTS; flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19; rts_dur = ieee80211_rts_duration(dev, priv->vif, skb->len, info); - } else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) { + } else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { flags |= RTL818X_TX_DESC_FLAG_CTS; flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19; } @@ -210,7 +210,7 @@ static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb) hdr->flags = cpu_to_le32(flags); hdr->len = 0; hdr->rts_duration = rts_dur; - hdr->retry = cpu_to_le32(info->control.retry_limit << 8); + hdr->retry = cpu_to_le32((info->control.rates[0].count - 1) << 8); buf = hdr; ep = 2; @@ -228,7 +228,7 @@ static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb) memset(hdr, 0, sizeof(*hdr)); hdr->flags = cpu_to_le32(flags); hdr->rts_duration = rts_dur; - hdr->retry = cpu_to_le32(info->control.retry_limit << 8); + hdr->retry = cpu_to_le32((info->control.rates[0].count - 1) << 8); hdr->tx_duration = ieee80211_generic_frame_duration(dev, priv->vif, skb->len, txrate); @@ -240,8 +240,8 @@ static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb) ep = epmap[skb_get_queue_mapping(skb)]; } - info->driver_data[0] = dev; - info->driver_data[1] = urb; + info->rate_driver_data[0] = dev; + info->rate_driver_data[1] = urb; usb_fill_bulk_urb(urb, priv->udev, usb_sndbulkpipe(priv->udev, ep), buf, skb->len, rtl8187_tx_cb, skb); diff --git a/drivers/net/wireless/zd1211rw/zd_mac.c b/drivers/net/wireless/zd1211rw/zd_mac.c index 6c3e21887fc8..2f0802b29c4b 100644 --- a/drivers/net/wireless/zd1211rw/zd_mac.c +++ b/drivers/net/wireless/zd1211rw/zd_mac.c @@ -296,15 +296,14 @@ static void zd_op_stop(struct ieee80211_hw *hw) * If no status information has been requested, the skb is freed. */ static void tx_status(struct ieee80211_hw *hw, struct sk_buff *skb, - u32 flags, int ackssi, bool success) + int ackssi, bool success) { struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - memset(&info->status, 0, sizeof(info->status)); + ieee80211_tx_info_clear_status(info); - if (!success) - info->status.excessive_retries = 1; - info->flags |= flags; + if (success) + info->flags |= IEEE80211_TX_STAT_ACK; info->status.ack_signal = ackssi; ieee80211_tx_status_irqsafe(hw, skb); } @@ -326,7 +325,7 @@ void zd_mac_tx_failed(struct ieee80211_hw *hw) if (skb == NULL) return; - tx_status(hw, skb, 0, 0, 0); + tx_status(hw, skb, 0, 0); } /** @@ -342,12 +341,12 @@ void zd_mac_tx_failed(struct ieee80211_hw *hw) void zd_mac_tx_to_dev(struct sk_buff *skb, int error) { struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - struct ieee80211_hw *hw = info->driver_data[0]; + struct ieee80211_hw *hw = info->rate_driver_data[0]; skb_pull(skb, sizeof(struct zd_ctrlset)); if (unlikely(error || (info->flags & IEEE80211_TX_CTL_NO_ACK))) { - tx_status(hw, skb, 0, 0, !error); + tx_status(hw, skb, 0, !error); } else { struct sk_buff_head *q = &zd_hw_mac(hw)->ack_wait_queue; @@ -406,7 +405,8 @@ static int zd_calc_tx_length_us(u8 *service, u8 zd_rate, u16 tx_length) } static void cs_set_control(struct zd_mac *mac, struct zd_ctrlset *cs, - struct ieee80211_hdr *header, u32 flags) + struct ieee80211_hdr *header, + struct ieee80211_tx_info *info) { /* * CONTROL TODO: @@ -417,7 +417,7 @@ static void cs_set_control(struct zd_mac *mac, struct zd_ctrlset *cs, cs->control = 0; /* First fragment */ - if (flags & IEEE80211_TX_CTL_FIRST_FRAGMENT) + if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT) cs->control |= ZD_CS_NEED_RANDOM_BACKOFF; /* Multicast */ @@ -428,10 +428,10 @@ static void cs_set_control(struct zd_mac *mac, struct zd_ctrlset *cs, if (ieee80211_is_pspoll(header->frame_control)) cs->control |= ZD_CS_PS_POLL_FRAME; - if (flags & IEEE80211_TX_CTL_USE_RTS_CTS) + if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) cs->control |= ZD_CS_RTS; - if (flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) + if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) cs->control |= ZD_CS_SELF_CTS; /* FIXME: Management frame? */ @@ -517,12 +517,12 @@ static int fill_ctrlset(struct zd_mac *mac, txrate = ieee80211_get_tx_rate(mac->hw, info); cs->modulation = txrate->hw_value; - if (info->flags & IEEE80211_TX_CTL_SHORT_PREAMBLE) + if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) cs->modulation = txrate->hw_value_short; cs->tx_length = cpu_to_le16(frag_len); - cs_set_control(mac, cs, hdr, info->flags); + cs_set_control(mac, cs, hdr, info); packet_length = frag_len + sizeof(struct zd_ctrlset) + 10; ZD_ASSERT(packet_length <= 0xffff); @@ -577,7 +577,7 @@ static int zd_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb) if (r) return r; - info->driver_data[0] = hw; + info->rate_driver_data[0] = hw; r = zd_usb_tx(&mac->chip.usb, skb); if (r) @@ -618,7 +618,7 @@ static int filter_ack(struct ieee80211_hw *hw, struct ieee80211_hdr *rx_hdr, if (likely(!compare_ether_addr(tx_hdr->addr2, rx_hdr->addr1))) { __skb_unlink(skb, q); - tx_status(hw, skb, IEEE80211_TX_STAT_ACK, stats->signal, 1); + tx_status(hw, skb, stats->signal, 1); goto out; } } diff --git a/drivers/net/wireless/zd1211rw/zd_usb.c b/drivers/net/wireless/zd1211rw/zd_usb.c index a60ae86bd5c9..d7a2f52e40cf 100644 --- a/drivers/net/wireless/zd1211rw/zd_usb.c +++ b/drivers/net/wireless/zd1211rw/zd_usb.c @@ -907,7 +907,7 @@ free_urb: * it might be freed by zd_mac_tx_to_dev or mac80211) */ info = IEEE80211_SKB_CB(skb); - usb = &zd_hw_mac(info->driver_data[0])->chip.usb; + usb = &zd_hw_mac(info->rate_driver_data[0])->chip.usb; zd_mac_tx_to_dev(skb, urb->status); free_tx_urb(usb, urb); tx_dec_submitted_urbs(usb); diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 9801afb62545..3741c0a7978a 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -214,29 +214,24 @@ struct ieee80211_bss_conf { * These flags are used with the @flags member of &ieee80211_tx_info. * * @IEEE80211_TX_CTL_REQ_TX_STATUS: request TX status callback for this frame. - * @IEEE80211_TX_CTL_USE_RTS_CTS: use RTS-CTS before sending frame - * @IEEE80211_TX_CTL_USE_CTS_PROTECT: use CTS protection for the frame (e.g., - * for combined 802.11g / 802.11b networks) + * @IEEE80211_TX_CTL_ASSIGN_SEQ: The driver has to assign a sequence + * number to this frame, taking care of not overwriting the fragment + * number and increasing the sequence number only when the + * IEEE80211_TX_CTL_FIRST_FRAGMENT flag is set. mac80211 will properly + * assign sequence numbers to QoS-data frames but cannot do so correctly + * for non-QoS-data and management frames because beacons need them from + * that counter as well and mac80211 cannot guarantee proper sequencing. + * If this flag is set, the driver should instruct the hardware to + * assign a sequence number to the frame or assign one itself. Cf. IEEE + * 802.11-2007 7.1.3.4.1 paragraph 3. This flag will always be set for + * beacons and always be clear for frames without a sequence number field. * @IEEE80211_TX_CTL_NO_ACK: tell the low level not to wait for an ack - * @IEEE80211_TX_CTL_RATE_CTRL_PROBE: TBD * @IEEE80211_TX_CTL_CLEAR_PS_FILT: clear powersave filter for destination * station - * @IEEE80211_TX_CTL_REQUEUE: TBD * @IEEE80211_TX_CTL_FIRST_FRAGMENT: this is a first fragment of the frame - * @IEEE80211_TX_CTL_SHORT_PREAMBLE: TBD - * @IEEE80211_TX_CTL_LONG_RETRY_LIMIT: this frame should be send using the - * through set_retry_limit configured long retry value * @IEEE80211_TX_CTL_SEND_AFTER_DTIM: send this frame after DTIM beacon * @IEEE80211_TX_CTL_AMPDU: this frame should be sent as part of an A-MPDU - * @IEEE80211_TX_CTL_OFDM_HT: this frame can be sent in HT OFDM rates. number - * of streams when this flag is on can be extracted from antenna_sel_tx, - * so if 1 antenna is marked use SISO, 2 antennas marked use MIMO, n - * antennas marked use MIMO_n. - * @IEEE80211_TX_CTL_GREEN_FIELD: use green field protection for this frame - * @IEEE80211_TX_CTL_40_MHZ_WIDTH: send this frame using 40 Mhz channel width - * @IEEE80211_TX_CTL_DUP_DATA: duplicate data frame on both 20 Mhz channels - * @IEEE80211_TX_CTL_SHORT_GI: send this frame using short guard interval - * @IEEE80211_TX_CTL_INJECTED: TBD + * @IEEE80211_TX_CTL_INJECTED: Frame was injected, internal to mac80211. * @IEEE80211_TX_STAT_TX_FILTERED: The frame was not transmitted * because the destination STA was in powersave mode. * @IEEE80211_TX_STAT_ACK: Frame was acknowledged @@ -244,62 +239,70 @@ struct ieee80211_bss_conf { * is for the whole aggregation. * @IEEE80211_TX_STAT_AMPDU_NO_BACK: no block ack was returned, * so consider using block ack request (BAR). - * @IEEE80211_TX_CTL_ASSIGN_SEQ: The driver has to assign a sequence - * number to this frame, taking care of not overwriting the fragment - * number and increasing the sequence number only when the - * IEEE80211_TX_CTL_FIRST_FRAGMENT flags is set. mac80211 will properly - * assign sequence numbers to QoS-data frames but cannot do so correctly - * for non-QoS-data and management frames because beacons need them from - * that counter as well and mac80211 cannot guarantee proper sequencing. - * If this flag is set, the driver should instruct the hardware to - * assign a sequence number to the frame or assign one itself. Cf. IEEE - * 802.11-2007 7.1.3.4.1 paragraph 3. This flag will always be set for - * beacons always be clear for frames without a sequence number field. + * @IEEE80211_TX_CTL_RATE_CTRL_PROBE: internal to mac80211, can be + * set by rate control algorithms to indicate probe rate, will + * be cleared for fragmented frames (except on the last fragment) + * @IEEE80211_TX_CTL_REQUEUE: REMOVE THIS */ enum mac80211_tx_control_flags { IEEE80211_TX_CTL_REQ_TX_STATUS = BIT(0), - IEEE80211_TX_CTL_USE_RTS_CTS = BIT(2), - IEEE80211_TX_CTL_USE_CTS_PROTECT = BIT(3), - IEEE80211_TX_CTL_NO_ACK = BIT(4), - IEEE80211_TX_CTL_RATE_CTRL_PROBE = BIT(5), - IEEE80211_TX_CTL_CLEAR_PS_FILT = BIT(6), - IEEE80211_TX_CTL_REQUEUE = BIT(7), - IEEE80211_TX_CTL_FIRST_FRAGMENT = BIT(8), - IEEE80211_TX_CTL_SHORT_PREAMBLE = BIT(9), - IEEE80211_TX_CTL_LONG_RETRY_LIMIT = BIT(10), - IEEE80211_TX_CTL_SEND_AFTER_DTIM = BIT(12), - IEEE80211_TX_CTL_AMPDU = BIT(13), - IEEE80211_TX_CTL_OFDM_HT = BIT(14), - IEEE80211_TX_CTL_GREEN_FIELD = BIT(15), - IEEE80211_TX_CTL_40_MHZ_WIDTH = BIT(16), - IEEE80211_TX_CTL_DUP_DATA = BIT(17), - IEEE80211_TX_CTL_SHORT_GI = BIT(18), - IEEE80211_TX_CTL_INJECTED = BIT(19), - IEEE80211_TX_STAT_TX_FILTERED = BIT(20), - IEEE80211_TX_STAT_ACK = BIT(21), - IEEE80211_TX_STAT_AMPDU = BIT(22), - IEEE80211_TX_STAT_AMPDU_NO_BACK = BIT(23), - IEEE80211_TX_CTL_ASSIGN_SEQ = BIT(24), + IEEE80211_TX_CTL_ASSIGN_SEQ = BIT(1), + IEEE80211_TX_CTL_NO_ACK = BIT(2), + IEEE80211_TX_CTL_CLEAR_PS_FILT = BIT(3), + IEEE80211_TX_CTL_FIRST_FRAGMENT = BIT(4), + IEEE80211_TX_CTL_SEND_AFTER_DTIM = BIT(5), + IEEE80211_TX_CTL_AMPDU = BIT(6), + IEEE80211_TX_CTL_INJECTED = BIT(7), + IEEE80211_TX_STAT_TX_FILTERED = BIT(8), + IEEE80211_TX_STAT_ACK = BIT(9), + IEEE80211_TX_STAT_AMPDU = BIT(10), + IEEE80211_TX_STAT_AMPDU_NO_BACK = BIT(11), + IEEE80211_TX_CTL_RATE_CTRL_PROBE = BIT(12), + + /* XXX: remove this */ + IEEE80211_TX_CTL_REQUEUE = BIT(13), }; +enum mac80211_rate_control_flags { + IEEE80211_TX_RC_USE_RTS_CTS = BIT(0), + IEEE80211_TX_RC_USE_CTS_PROTECT = BIT(1), + IEEE80211_TX_RC_USE_SHORT_PREAMBLE = BIT(2), + + /* rate index is an MCS rate number instead of an index */ + IEEE80211_TX_RC_MCS = BIT(3), + IEEE80211_TX_RC_GREEN_FIELD = BIT(4), + IEEE80211_TX_RC_40_MHZ_WIDTH = BIT(5), + IEEE80211_TX_RC_DUP_DATA = BIT(6), + IEEE80211_TX_RC_SHORT_GI = BIT(7), +}; + + +/* there are 40 bytes if you don't need the rateset to be kept */ +#define IEEE80211_TX_INFO_DRIVER_DATA_SIZE 40 -#define IEEE80211_TX_INFO_DRIVER_DATA_SIZE \ - (sizeof(((struct sk_buff *)0)->cb) - 8) -#define IEEE80211_TX_INFO_DRIVER_DATA_PTRS \ - (IEEE80211_TX_INFO_DRIVER_DATA_SIZE / sizeof(void *)) +/* if you do need the rateset, then you have less space */ +#define IEEE80211_TX_INFO_RATE_DRIVER_DATA_SIZE 24 -/* maximum number of alternate rate retry stages */ -#define IEEE80211_TX_MAX_ALTRATE 3 +/* maximum number of rate stages */ +#define IEEE80211_TX_MAX_RATES 5 /** - * struct ieee80211_tx_altrate - alternate rate selection/status + * struct ieee80211_tx_rate - rate selection/status * - * @rate_idx: rate index to attempt to send with + * @idx: rate index to attempt to send with + * @flags: rate control flags (&enum mac80211_rate_control_flags) * @limit: number of retries before fallback + * + * A value of -1 for @idx indicates an invalid rate and, if used + * in an array of retry rates, that no more rates should be tried. + * + * When used for transmit status reporting, the driver should + * always report the rate along with the flags it used. */ -struct ieee80211_tx_altrate { - s8 rate_idx; - u8 limit; +struct ieee80211_tx_rate { + s8 idx; + u8 count; + u8 flags; }; /** @@ -314,15 +317,12 @@ struct ieee80211_tx_altrate { * it may be NULL. * * @flags: transmit info flags, defined above - * @band: TBD - * @tx_rate_idx: TBD + * @band: the band to transmit on (use for checking for races) * @antenna_sel_tx: antenna to use, 0 for automatic diversity * @control: union for control data * @status: union for status data * @driver_data: array of driver_data pointers * @retry_count: number of retries - * @excessive_retries: set to 1 if the frame was retried many times - * but not acknowledged * @ampdu_ack_len: number of aggregated frames. * relevant only if IEEE80211_TX_STATUS_AMPDU was set. * @ampdu_ack_map: block ack bit map for the aggregation. @@ -333,31 +333,43 @@ struct ieee80211_tx_info { /* common information */ u32 flags; u8 band; - s8 tx_rate_idx; + u8 antenna_sel_tx; - /* 1 byte hole */ + /* 2 byte hole */ union { struct { + union { + /* rate control */ + struct { + struct ieee80211_tx_rate rates[ + IEEE80211_TX_MAX_RATES]; + s8 rts_cts_rate_idx; + }; + /* only needed before rate control */ + unsigned long jiffies; + }; /* NB: vif can be NULL for injected frames */ struct ieee80211_vif *vif; struct ieee80211_key_conf *hw_key; struct ieee80211_sta *sta; - unsigned long jiffies; - s8 rts_cts_rate_idx; - u8 retry_limit; - struct ieee80211_tx_altrate retries[IEEE80211_TX_MAX_ALTRATE]; } control; struct { + struct ieee80211_tx_rate rates[IEEE80211_TX_MAX_RATES]; + u8 ampdu_ack_len; u64 ampdu_ack_map; int ack_signal; - struct ieee80211_tx_altrate retries[IEEE80211_TX_MAX_ALTRATE + 1]; - u8 retry_count; - bool excessive_retries; - u8 ampdu_ack_len; + /* 8 bytes free */ } status; - void *driver_data[IEEE80211_TX_INFO_DRIVER_DATA_PTRS]; + struct { + struct ieee80211_tx_rate driver_rates[ + IEEE80211_TX_MAX_RATES]; + void *rate_driver_data[ + IEEE80211_TX_INFO_RATE_DRIVER_DATA_SIZE / sizeof(void *)]; + }; + void *driver_data[ + IEEE80211_TX_INFO_DRIVER_DATA_SIZE / sizeof(void *)]; }; }; @@ -366,6 +378,41 @@ static inline struct ieee80211_tx_info *IEEE80211_SKB_CB(struct sk_buff *skb) return (struct ieee80211_tx_info *)skb->cb; } +/** + * ieee80211_tx_info_clear_status - clear TX status + * + * @info: The &struct ieee80211_tx_info to be cleared. + * + * When the driver passes an skb back to mac80211, it must report + * a number of things in TX status. This function clears everything + * in the TX status but the rate control information (it does clear + * the count since you need to fill that in anyway). + * + * NOTE: You can only use this function if you do NOT use + * info->driver_data! Use info->rate_driver_data + * instead if you need only the less space that allows. + */ +static inline void +ieee80211_tx_info_clear_status(struct ieee80211_tx_info *info) +{ + int i; + + BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, status.rates) != + offsetof(struct ieee80211_tx_info, control.rates)); + BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, status.rates) != + offsetof(struct ieee80211_tx_info, driver_rates)); + BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, status.rates) != 8); + /* clear the rate counts */ + for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) + info->status.rates[i].count = 0; + + BUILD_BUG_ON( + offsetof(struct ieee80211_tx_info, status.ampdu_ack_len) != 23); + memset(&info->status.ampdu_ack_len, 0, + sizeof(struct ieee80211_tx_info) - + offsetof(struct ieee80211_tx_info, status.ampdu_ack_len)); +} + /** * enum mac80211_rx_flags - receive flags @@ -869,8 +916,8 @@ enum ieee80211_hw_flags { * @sta_data_size: size (in bytes) of the drv_priv data area * within &struct ieee80211_sta. * - * @max_altrates: maximum number of alternate rate retry stages - * @max_altrate_tries: maximum number of tries for each stage + * @max_rates: maximum number of alternate rate retry stages + * @max_rate_tries: maximum number of tries for each stage */ struct ieee80211_hw { struct ieee80211_conf conf; @@ -887,8 +934,8 @@ struct ieee80211_hw { u16 ampdu_queues; u16 max_listen_interval; s8 max_signal; - u8 max_altrates; - u8 max_altrate_tries; + u8 max_rates; + u8 max_rate_tries; }; /** @@ -927,9 +974,9 @@ static inline struct ieee80211_rate * ieee80211_get_tx_rate(const struct ieee80211_hw *hw, const struct ieee80211_tx_info *c) { - if (WARN_ON(c->tx_rate_idx < 0)) + if (WARN_ON(c->control.rates[0].idx < 0)) return NULL; - return &hw->wiphy->bands[c->band]->bitrates[c->tx_rate_idx]; + return &hw->wiphy->bands[c->band]->bitrates[c->control.rates[0].idx]; } static inline struct ieee80211_rate * @@ -945,9 +992,9 @@ static inline struct ieee80211_rate * ieee80211_get_alt_retry_rate(const struct ieee80211_hw *hw, const struct ieee80211_tx_info *c, int idx) { - if (c->control.retries[idx].rate_idx < 0) + if (c->control.rates[idx + 1].idx < 0) return NULL; - return &hw->wiphy->bands[c->band]->bitrates[c->control.retries[idx].rate_idx]; + return &hw->wiphy->bands[c->band]->bitrates[c->control.rates[idx + 1].idx]; } /** @@ -1840,17 +1887,30 @@ struct ieee80211_sta *ieee80211_find_sta(struct ieee80211_hw *hw, /* Rate control API */ + /** - * struct rate_selection - rate information for/from rate control algorithms - * - * @rate_idx: selected transmission rate index - * @nonerp_idx: Non-ERP rate to use instead if ERP cannot be used - * @probe_idx: rate for probing (or -1) - * @max_rate_idx: maximum rate index that can be used, this is - * input to the algorithm and will be enforced - */ -struct rate_selection { - s8 rate_idx, nonerp_idx, probe_idx, max_rate_idx; + * struct ieee80211_tx_rate_control - rate control information for/from RC algo + * + * @hw: The hardware the algorithm is invoked for. + * @sband: The band this frame is being transmitted on. + * @bss_conf: the current BSS configuration + * @reported_rate: The rate control algorithm can fill this in to indicate + * which rate should be reported to userspace as the current rate and + * used for rate calculations in the mesh network. + * @rts: whether RTS will be used for this frame because it is longer than the + * RTS threshold + * @short_preamble: whether mac80211 will request short-preamble transmission + * if the selected rate supports it + * @max_rate_idx: user-requested maximum rate (not MCS for now) + */ +struct ieee80211_tx_rate_control { + struct ieee80211_hw *hw; + struct ieee80211_supported_band *sband; + struct ieee80211_bss_conf *bss_conf; + struct sk_buff *skb; + struct ieee80211_tx_rate reported_rate; + bool rts, short_preamble; + u8 max_rate_idx; }; struct rate_control_ops { @@ -1869,10 +1929,8 @@ struct rate_control_ops { void (*tx_status)(void *priv, struct ieee80211_supported_band *sband, struct ieee80211_sta *sta, void *priv_sta, struct sk_buff *skb); - void (*get_rate)(void *priv, struct ieee80211_supported_band *sband, - struct ieee80211_sta *sta, void *priv_sta, - struct sk_buff *skb, - struct rate_selection *sel); + void (*get_rate)(void *priv, struct ieee80211_sta *sta, void *priv_sta, + struct ieee80211_tx_rate_control *txrc); void (*add_sta_debugfs)(void *priv, void *priv_sta, struct dentry *dir); diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 6f8756d26a93..fe4efdd4253d 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -142,7 +142,6 @@ typedef unsigned __bitwise__ ieee80211_tx_result; #define IEEE80211_TX_FRAGMENTED BIT(0) #define IEEE80211_TX_UNICAST BIT(1) #define IEEE80211_TX_PS_BUFFERED BIT(2) -#define IEEE80211_TX_PROBE_LAST_FRAG BIT(3) struct ieee80211_tx_data { struct sk_buff *skb; @@ -153,11 +152,6 @@ struct ieee80211_tx_data { struct ieee80211_key *key; struct ieee80211_channel *channel; - s8 rate_idx; - /* use this rate (if set) for last fragment; rate can - * be set to lower rate for the first fragments, e.g., - * when using CTS protection with IEEE 802.11g. */ - s8 last_frag_rate_idx; /* Extra fragments (in addition to the first fragment * in skb) */ @@ -203,9 +197,7 @@ struct ieee80211_rx_data { struct ieee80211_tx_stored_packet { struct sk_buff *skb; struct sk_buff **extra_frag; - s8 last_frag_rate_idx; int num_extra_frag; - bool last_frag_rate_ctrl_probe; }; struct beacon_data { diff --git a/net/mac80211/main.c b/net/mac80211/main.c index ffff54944f9d..88c1975a97a5 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -41,6 +41,8 @@ */ struct ieee80211_tx_status_rtap_hdr { struct ieee80211_radiotap_header hdr; + u8 rate; + u8 padding_for_rate; __le16 tx_flags; u8 data_retries; } __attribute__ ((packed)); @@ -465,13 +467,28 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) struct ieee80211_sub_if_data *sdata; struct net_device *prev_dev = NULL; struct sta_info *sta; + int retry_count = -1, i; + + for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { + /* the HW cannot have attempted that rate */ + if (i >= hw->max_rates) { + info->status.rates[i].idx = -1; + info->status.rates[i].count = 0; + } + + retry_count += info->status.rates[i].count; + } + if (retry_count < 0) + retry_count = 0; rcu_read_lock(); + sband = local->hw.wiphy->bands[info->band]; + sta = sta_info_get(local, hdr->addr1); if (sta) { - if (info->status.excessive_retries && + if (!(info->flags & IEEE80211_TX_STAT_ACK) && test_sta_flags(sta, WLAN_STA_PS)) { /* * The STA is in power save mode, so assume @@ -502,12 +519,11 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) rcu_read_unlock(); return; } else { - if (info->status.excessive_retries) + if (!(info->flags & IEEE80211_TX_STAT_ACK)) sta->tx_retry_failed++; - sta->tx_retry_count += info->status.retry_count; + sta->tx_retry_count += retry_count; } - sband = local->hw.wiphy->bands[info->band]; rate_control_tx_status(local, sband, sta, skb); } @@ -528,9 +544,9 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) local->dot11TransmittedFrameCount++; if (is_multicast_ether_addr(hdr->addr1)) local->dot11MulticastTransmittedFrameCount++; - if (info->status.retry_count > 0) + if (retry_count > 0) local->dot11RetryCount++; - if (info->status.retry_count > 1) + if (retry_count > 1) local->dot11MultipleRetryCount++; } @@ -574,19 +590,30 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) rthdr->hdr.it_len = cpu_to_le16(sizeof(*rthdr)); rthdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_TX_FLAGS) | - (1 << IEEE80211_RADIOTAP_DATA_RETRIES)); + (1 << IEEE80211_RADIOTAP_DATA_RETRIES) | + (1 << IEEE80211_RADIOTAP_RATE)); if (!(info->flags & IEEE80211_TX_STAT_ACK) && !is_multicast_ether_addr(hdr->addr1)) rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_FAIL); - if ((info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) && - (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)) + /* + * XXX: Once radiotap gets the bitmap reset thing the vendor + * extensions proposal contains, we can actually report + * the whole set of tries we did. + */ + if ((info->status.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) || + (info->status.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)) rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_CTS); - else if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) + else if (info->status.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_RTS); + if (info->status.rates[0].idx >= 0 && + !(info->status.rates[0].flags & IEEE80211_TX_RC_MCS)) + rthdr->rate = sband->bitrates[ + info->status.rates[0].idx].bitrate / 5; - rthdr->data_retries = info->status.retry_count; + /* for now report the total retry_count */ + rthdr->data_retries = retry_count; /* XXX: is this sufficient for BPF? */ skb_set_mac_header(skb, 0); @@ -671,8 +698,9 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, BUG_ON(!ops->configure_filter); local->ops = ops; - local->hw.queues = 1; /* default */ - + /* set up some defaults */ + local->hw.queues = 1; + local->hw.max_rates = 1; local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD; local->hw.conf.long_frame_max_tx_count = 4; diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c index 501c7831adb4..e8d573d592e7 100644 --- a/net/mac80211/mesh_hwmp.c +++ b/net/mac80211/mesh_hwmp.c @@ -218,12 +218,16 @@ static u32 airtime_link_metric_get(struct ieee80211_local *local, if (sta->fail_avg >= 100) return MAX_METRIC; + + if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS) + return MAX_METRIC; + err = (sta->fail_avg << ARITH_SHIFT) / 100; /* bitrate is in units of 100 Kbps, while we need rate in units of * 1Mbps. This will be corrected on tx_time computation. */ - rate = sband->bitrates[sta->last_txrate_idx].bitrate; + rate = sband->bitrates[sta->last_tx_rate.idx].bitrate; tx_time = (device_constant + 10 * test_frame_len / rate); estimated_retx = ((1 << (2 * ARITH_SHIFT)) / (s_unit - err)); result = (tx_time * estimated_retx) >> (2 * ARITH_SHIFT) ; diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c index 5d786720d935..3fa7ab285066 100644 --- a/net/mac80211/rate.c +++ b/net/mac80211/rate.c @@ -199,48 +199,44 @@ static void rate_control_release(struct kref *kref) } void rate_control_get_rate(struct ieee80211_sub_if_data *sdata, - struct ieee80211_supported_band *sband, - struct sta_info *sta, struct sk_buff *skb, - struct rate_selection *sel) + struct sta_info *sta, + struct ieee80211_tx_rate_control *txrc) { struct rate_control_ref *ref = sdata->local->rate_ctrl; void *priv_sta = NULL; struct ieee80211_sta *ista = NULL; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(txrc->skb); int i; - sel->rate_idx = -1; - sel->nonerp_idx = -1; - sel->probe_idx = -1; - sel->max_rate_idx = sdata->max_ratectrl_rateidx; - if (sta) { ista = &sta->sta; priv_sta = sta->rate_ctrl_priv; } + for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { + info->control.rates[i].idx = -1; + info->control.rates[i].flags = 0; + info->control.rates[i].count = 1; + } + if (sta && sdata->force_unicast_rateidx > -1) - sel->rate_idx = sdata->force_unicast_rateidx; + info->control.rates[0].idx = sdata->force_unicast_rateidx; else - ref->ops->get_rate(ref->priv, sband, ista, priv_sta, skb, sel); - - if (sdata->max_ratectrl_rateidx > -1 && - sel->rate_idx > sdata->max_ratectrl_rateidx) - sel->rate_idx = sdata->max_ratectrl_rateidx; - - BUG_ON(sel->rate_idx < 0); - - /* Select a non-ERP backup rate. */ - if (sel->nonerp_idx < 0) { - for (i = 0; i < sband->n_bitrates; i++) { - struct ieee80211_rate *rate = &sband->bitrates[i]; - if (sband->bitrates[sel->rate_idx].bitrate < rate->bitrate) - break; - - if (rate_supported(ista, sband->band, i) && - !(rate->flags & IEEE80211_RATE_ERP_G)) - sel->nonerp_idx = i; - } + ref->ops->get_rate(ref->priv, ista, priv_sta, txrc); + + /* + * try to enforce the maximum rate the user wanted + */ + if (sdata->max_ratectrl_rateidx > -1) + for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { + if (info->control.rates[i].flags & IEEE80211_TX_RC_MCS) + continue; + info->control.rates[i].idx = + min_t(s8, info->control.rates[i].idx, + sdata->max_ratectrl_rateidx); } + + BUG_ON(info->control.rates[0].idx < 0); } struct rate_control_ref *rate_control_get(struct rate_control_ref *ref) diff --git a/net/mac80211/rate.h b/net/mac80211/rate.h index d0092f847f82..7c25edf9ac55 100644 --- a/net/mac80211/rate.h +++ b/net/mac80211/rate.h @@ -31,9 +31,8 @@ struct rate_control_ref { struct rate_control_ref *rate_control_alloc(const char *name, struct ieee80211_local *local); void rate_control_get_rate(struct ieee80211_sub_if_data *sdata, - struct ieee80211_supported_band *sband, - struct sta_info *sta, struct sk_buff *skb, - struct rate_selection *sel); + struct sta_info *sta, + struct ieee80211_tx_rate_control *txrc); struct rate_control_ref *rate_control_get(struct rate_control_ref *ref); void rate_control_put(struct rate_control_ref *ref); diff --git a/net/mac80211/rc80211_minstrel.c b/net/mac80211/rc80211_minstrel.c index f6d69dab07a3..759ddd8bf0f4 100644 --- a/net/mac80211/rc80211_minstrel.c +++ b/net/mac80211/rc80211_minstrel.c @@ -169,30 +169,20 @@ minstrel_tx_status(void *priv, struct ieee80211_supported_band *sband, { struct minstrel_sta_info *mi = priv_sta; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - struct ieee80211_tx_altrate *ar = info->status.retries; - struct minstrel_priv *mp = priv; - int i, ndx, tries; - int success = 0; + struct ieee80211_tx_rate *ar = info->status.rates; + int i, ndx; + int success; - if (!info->status.excessive_retries) - success = 1; + success = !!(info->flags & IEEE80211_TX_STAT_ACK); - if (!mp->has_mrr || (ar[0].rate_idx < 0)) { - ndx = rix_to_ndx(mi, info->tx_rate_idx); - tries = info->status.retry_count + 1; - mi->r[ndx].success += success; - mi->r[ndx].attempts += tries; - return; - } - - for (i = 0; i < 4; i++) { - if (ar[i].rate_idx < 0) + for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { + if (ar[i].idx < 0) break; - ndx = rix_to_ndx(mi, ar[i].rate_idx); - mi->r[ndx].attempts += ar[i].limit + 1; + ndx = rix_to_ndx(mi, ar[i].idx); + mi->r[ndx].attempts += ar[i].count; - if ((i != 3) && (ar[i + 1].rate_idx < 0)) + if ((i != IEEE80211_TX_MAX_RATES - 1) && (ar[i + 1].idx < 0)) mi->r[ndx].success += success; } @@ -210,9 +200,9 @@ minstrel_get_retry_count(struct minstrel_rate *mr, { unsigned int retry = mr->adjusted_retry_count; - if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) + if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) retry = max(2U, min(mr->retry_count_rtscts, retry)); - else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) + else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) retry = max(2U, min(mr->retry_count_cts, retry)); return retry; } @@ -234,14 +224,15 @@ minstrel_get_next_sample(struct minstrel_sta_info *mi) } void -minstrel_get_rate(void *priv, struct ieee80211_supported_band *sband, - struct ieee80211_sta *sta, void *priv_sta, - struct sk_buff *skb, struct rate_selection *sel) +minstrel_get_rate(void *priv, struct ieee80211_sta *sta, + void *priv_sta, struct ieee80211_tx_rate_control *txrc) { + struct sk_buff *skb = txrc->skb; + struct ieee80211_supported_band *sband = txrc->sband; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); struct minstrel_sta_info *mi = priv_sta; struct minstrel_priv *mp = priv; - struct ieee80211_tx_altrate *ar = info->control.retries; + struct ieee80211_tx_rate *ar = info->control.rates; unsigned int ndx, sample_ndx = 0; bool mrr; bool sample_slower = false; @@ -251,16 +242,12 @@ minstrel_get_rate(void *priv, struct ieee80211_supported_band *sband, int sample_rate; if (!sta || !mi || use_low_rate(skb)) { - sel->rate_idx = rate_lowest_index(sband, sta); + ar[0].idx = rate_lowest_index(sband, sta); + ar[0].count = mp->max_retry; return; } - mrr = mp->has_mrr; - - /* mac80211 does not allow mrr for RTS/CTS */ - if ((info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) || - (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)) - mrr = false; + mrr = mp->has_mrr && !txrc->rts && !txrc->bss_conf->use_cts_prot; if (time_after(jiffies, mi->stats_update + (mp->update_interval * HZ) / 1000)) @@ -315,13 +302,12 @@ minstrel_get_rate(void *priv, struct ieee80211_supported_band *sband, mi->sample_deferred++; } } - sel->rate_idx = mi->r[ndx].rix; - info->control.retry_limit = minstrel_get_retry_count(&mi->r[ndx], info); + ar[0].idx = mi->r[ndx].rix; + ar[0].count = minstrel_get_retry_count(&mi->r[ndx], info); if (!mrr) { - ar[0].rate_idx = mi->lowest_rix; - ar[0].limit = mp->max_retry; - ar[1].rate_idx = -1; + ar[1].idx = mi->lowest_rix; + ar[1].count = mp->max_retry; return; } @@ -336,9 +322,9 @@ minstrel_get_rate(void *priv, struct ieee80211_supported_band *sband, } mrr_ndx[1] = mi->max_prob_rate; mrr_ndx[2] = 0; - for (i = 0; i < 3; i++) { - ar[i].rate_idx = mi->r[mrr_ndx[i]].rix; - ar[i].limit = mi->r[mrr_ndx[i]].adjusted_retry_count; + for (i = 1; i < 4; i++) { + ar[i].idx = mi->r[mrr_ndx[i - 1]].rix; + ar[i].count = mi->r[mrr_ndx[i - 1]].adjusted_retry_count; } } @@ -532,13 +518,13 @@ minstrel_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir) /* maximum time that the hw is allowed to stay in one MRR segment */ mp->segment_size = 6000; - if (hw->max_altrate_tries > 0) - mp->max_retry = hw->max_altrate_tries; + if (hw->max_rate_tries > 0) + mp->max_retry = hw->max_rate_tries; else /* safe default, does not necessarily have to match hw properties */ mp->max_retry = 7; - if (hw->max_altrates >= 3) + if (hw->max_rates >= 4) mp->has_mrr = true; mp->hw = hw; diff --git a/net/mac80211/rc80211_pid.h b/net/mac80211/rc80211_pid.h index ce099ea1d5d3..1a873f00691a 100644 --- a/net/mac80211/rc80211_pid.h +++ b/net/mac80211/rc80211_pid.h @@ -61,6 +61,7 @@ enum rc_pid_event_type { union rc_pid_event_data { /* RC_PID_EVENT_TX_STATUS */ struct { + u32 flags; struct ieee80211_tx_info tx_status; }; /* RC_PID_EVENT_TYPE_RATE_CHANGE */ diff --git a/net/mac80211/rc80211_pid_algo.c b/net/mac80211/rc80211_pid_algo.c index 86eb374e3b87..92caecfcee78 100644 --- a/net/mac80211/rc80211_pid_algo.c +++ b/net/mac80211/rc80211_pid_algo.c @@ -241,7 +241,7 @@ static void rate_control_pid_tx_status(void *priv, struct ieee80211_supported_ba /* Ignore all frames that were sent with a different rate than the rate * we currently advise mac80211 to use. */ - if (info->tx_rate_idx != spinfo->txrate_idx) + if (info->status.rates[0].idx != spinfo->txrate_idx) return; spinfo->tx_num_xmit++; @@ -253,10 +253,10 @@ static void rate_control_pid_tx_status(void *priv, struct ieee80211_supported_ba /* We count frames that totally failed to be transmitted as two bad * frames, those that made it out but had some retries as one good and * one bad frame. */ - if (info->status.excessive_retries) { + if (!(info->flags & IEEE80211_TX_STAT_ACK)) { spinfo->tx_num_failed += 2; spinfo->tx_num_xmit++; - } else if (info->status.retry_count) { + } else if (info->status.rates[0].count) { spinfo->tx_num_failed++; spinfo->tx_num_xmit++; } @@ -270,23 +270,32 @@ static void rate_control_pid_tx_status(void *priv, struct ieee80211_supported_ba } static void -rate_control_pid_get_rate(void *priv, struct ieee80211_supported_band *sband, - struct ieee80211_sta *sta, void *priv_sta, - struct sk_buff *skb, - struct rate_selection *sel) +rate_control_pid_get_rate(void *priv, struct ieee80211_sta *sta, + void *priv_sta, + struct ieee80211_tx_rate_control *txrc) { + struct sk_buff *skb = txrc->skb; + struct ieee80211_supported_band *sband = txrc->sband; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); struct rc_pid_sta_info *spinfo = priv_sta; int rateidx; u16 fc; + if (txrc->rts) + info->control.rates[0].count = + txrc->hw->conf.long_frame_max_tx_count; + else + info->control.rates[0].count = + txrc->hw->conf.short_frame_max_tx_count; + /* Send management frames and broadcast/multicast data using lowest * rate. */ fc = le16_to_cpu(hdr->frame_control); if (!sta || !spinfo || (fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA || is_multicast_ether_addr(hdr->addr1)) { - sel->rate_idx = rate_lowest_index(sband, sta); + info->control.rates[0].idx = rate_lowest_index(sband, sta); return; } @@ -295,7 +304,7 @@ rate_control_pid_get_rate(void *priv, struct ieee80211_supported_band *sband, if (rateidx >= sband->n_bitrates) rateidx = sband->n_bitrates - 1; - sel->rate_idx = rateidx; + info->control.rates[0].idx = rateidx; #ifdef CONFIG_MAC80211_DEBUGFS rate_control_pid_event_tx_rate(&spinfo->events, diff --git a/net/mac80211/rc80211_pid_debugfs.c b/net/mac80211/rc80211_pid_debugfs.c index 8121d3bc6835..a08a9b530347 100644 --- a/net/mac80211/rc80211_pid_debugfs.c +++ b/net/mac80211/rc80211_pid_debugfs.c @@ -43,6 +43,7 @@ void rate_control_pid_event_tx_status(struct rc_pid_event_buffer *buf, { union rc_pid_event_data evd; + evd.flags = stat->flags; memcpy(&evd.tx_status, stat, sizeof(struct ieee80211_tx_info)); rate_control_pid_event(buf, RC_PID_EVENT_TYPE_TX_STATUS, &evd); } @@ -167,8 +168,8 @@ static ssize_t rate_control_pid_events_read(struct file *file, char __user *buf, switch (ev->type) { case RC_PID_EVENT_TYPE_TX_STATUS: p += snprintf(pb + p, length - p, "tx_status %u %u", - ev->data.tx_status.status.excessive_retries, - ev->data.tx_status.status.retry_count); + !(ev->data.flags & IEEE80211_TX_STAT_ACK), + ev->data.tx_status.status.rates[0].idx); break; case RC_PID_EVENT_TYPE_RATE_CHANGE: p += snprintf(pb + p, length - p, "rate_change %d %d", diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index 168a39a298bd..4ac372aa75ce 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -196,7 +196,7 @@ struct sta_ampdu_mlme { * @tx_packets: number of RX/TX MSDUs * @tx_bytes: TBD * @tx_fragments: number of transmitted MPDUs - * @last_txrate_idx: Index of the last used transmit rate + * @last_txrate: description of the last used transmit rate * @tid_seq: TBD * @ampdu_mlme: TBD * @timer_to_tid: identity mapping to ID timers @@ -267,7 +267,7 @@ struct sta_info { unsigned long tx_packets; unsigned long tx_bytes; unsigned long tx_fragments; - unsigned int last_txrate_idx; + struct ieee80211_tx_rate last_tx_rate; u16 tid_seq[IEEE80211_QOS_CTL_TID_MASK + 1]; /* diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 6f3e4be97631..21951bac1ef7 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -46,13 +46,20 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx, int group_addr, struct ieee80211_local *local = tx->local; struct ieee80211_supported_band *sband; struct ieee80211_hdr *hdr; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb); + + /* assume HW handles this */ + if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS) + return 0; + + /* uh huh? */ + if (WARN_ON_ONCE(info->control.rates[0].idx < 0)) + return 0; sband = local->hw.wiphy->bands[tx->channel->band]; - txrate = &sband->bitrates[tx->rate_idx]; + txrate = &sband->bitrates[info->control.rates[0].idx]; - erp = 0; - if (tx->sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) - erp = txrate->flags & IEEE80211_RATE_ERP_G; + erp = txrate->flags & IEEE80211_RATE_ERP_G; /* * data and mgmt (except PS Poll): @@ -437,140 +444,154 @@ ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx) static ieee80211_tx_result debug_noinline ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx) { - struct rate_selection rsel; - struct ieee80211_supported_band *sband; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb); + struct ieee80211_hdr *hdr = (void *)tx->skb->data; + struct ieee80211_supported_band *sband; + struct ieee80211_rate *rate; + int i, len; + bool inval = false, rts = false, short_preamble = false; + struct ieee80211_tx_rate_control txrc; - sband = tx->local->hw.wiphy->bands[tx->channel->band]; + memset(&txrc, 0, sizeof(txrc)); - if (likely(tx->rate_idx < 0)) { - rate_control_get_rate(tx->sdata, sband, tx->sta, - tx->skb, &rsel); - if (tx->sta) - tx->sta->last_txrate_idx = rsel.rate_idx; - tx->rate_idx = rsel.rate_idx; - if (unlikely(rsel.probe_idx >= 0)) { - info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE; - tx->flags |= IEEE80211_TX_PROBE_LAST_FRAG; - info->control.retries[0].rate_idx = tx->rate_idx; - info->control.retries[0].limit = tx->local->hw.max_altrate_tries; - tx->rate_idx = rsel.probe_idx; - } else if (info->control.retries[0].limit == 0) - info->control.retries[0].rate_idx = -1; - - if (unlikely(tx->rate_idx < 0)) - return TX_DROP; - } else - info->control.retries[0].rate_idx = -1; + sband = tx->local->hw.wiphy->bands[tx->channel->band]; - if (tx->sdata->vif.bss_conf.use_cts_prot && - (tx->flags & IEEE80211_TX_FRAGMENTED) && (rsel.nonerp_idx >= 0)) { - tx->last_frag_rate_idx = tx->rate_idx; - if (rsel.probe_idx >= 0) - tx->flags &= ~IEEE80211_TX_PROBE_LAST_FRAG; - else - tx->flags |= IEEE80211_TX_PROBE_LAST_FRAG; - tx->rate_idx = rsel.nonerp_idx; - info->tx_rate_idx = rsel.nonerp_idx; - info->flags &= ~IEEE80211_TX_CTL_RATE_CTRL_PROBE; - } else { - tx->last_frag_rate_idx = tx->rate_idx; - info->tx_rate_idx = tx->rate_idx; + len = min_t(int, tx->skb->len + FCS_LEN, + tx->local->fragmentation_threshold); + + /* set up the tx rate control struct we give the RC algo */ + txrc.hw = local_to_hw(tx->local); + txrc.sband = sband; + txrc.bss_conf = &tx->sdata->vif.bss_conf; + txrc.skb = tx->skb; + txrc.reported_rate.idx = -1; + txrc.max_rate_idx = tx->sdata->max_ratectrl_rateidx; + + /* set up RTS protection if desired */ + if (tx->local->rts_threshold < IEEE80211_MAX_RTS_THRESHOLD && + len > tx->local->rts_threshold) { + txrc.rts = rts = true; } - info->tx_rate_idx = tx->rate_idx; - return TX_CONTINUE; -} + /* + * Use short preamble if the BSS can handle it, but not for + * management frames unless we know the receiver can handle + * that -- the management frame might be to a station that + * just wants a probe response. + */ + if (tx->sdata->vif.bss_conf.use_short_preamble && + (ieee80211_is_data(hdr->frame_control) || + (tx->sta && test_sta_flags(tx->sta, WLAN_STA_SHORT_PREAMBLE)))) + txrc.short_preamble = short_preamble = true; -static ieee80211_tx_result debug_noinline -ieee80211_tx_h_misc(struct ieee80211_tx_data *tx) -{ - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data; - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb); - struct ieee80211_supported_band *sband; - sband = tx->local->hw.wiphy->bands[tx->channel->band]; + rate_control_get_rate(tx->sdata, tx->sta, &txrc); + + if (unlikely(info->control.rates[0].idx < 0)) + return TX_DROP; + + if (txrc.reported_rate.idx < 0) + txrc.reported_rate = info->control.rates[0]; if (tx->sta) - info->control.sta = &tx->sta->sta; + tx->sta->last_tx_rate = txrc.reported_rate; - if (!info->control.retry_limit) { - if (!is_multicast_ether_addr(hdr->addr1)) { - int len = min_t(int, tx->skb->len + FCS_LEN, - tx->local->fragmentation_threshold); - if (len > tx->local->rts_threshold - && tx->local->rts_threshold < - IEEE80211_MAX_RTS_THRESHOLD) { - info->flags |= IEEE80211_TX_CTL_USE_RTS_CTS; - info->flags |= - IEEE80211_TX_CTL_LONG_RETRY_LIMIT; - info->control.retry_limit = - tx->local->hw.conf.long_frame_max_tx_count - 1; - } else { - info->control.retry_limit = - tx->local->hw.conf.short_frame_max_tx_count - 1; - } - } else { - info->control.retry_limit = 1; - } - } + if (unlikely(!info->control.rates[0].count)) + info->control.rates[0].count = 1; - if (tx->flags & IEEE80211_TX_FRAGMENTED) { - /* Do not use multiple retry rates when sending fragmented - * frames. - * TODO: The last fragment could still use multiple retry - * rates. */ - info->control.retries[0].rate_idx = -1; + if (is_multicast_ether_addr(hdr->addr1)) { + /* + * XXX: verify the rate is in the basic rateset + */ + return TX_CONTINUE; } - /* Use CTS protection for unicast frames sent using extended rates if - * there are associated non-ERP stations and RTS/CTS is not configured - * for the frame. */ - if ((tx->sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) && - (sband->bitrates[tx->rate_idx].flags & IEEE80211_RATE_ERP_G) && - (tx->flags & IEEE80211_TX_UNICAST) && - tx->sdata->vif.bss_conf.use_cts_prot && - !(info->flags & IEEE80211_TX_CTL_USE_RTS_CTS)) - info->flags |= IEEE80211_TX_CTL_USE_CTS_PROTECT; - - /* Transmit data frames using short preambles if the driver supports - * short preambles at the selected rate and short preambles are - * available on the network at the current point in time. */ - if (ieee80211_is_data(hdr->frame_control) && - (sband->bitrates[tx->rate_idx].flags & IEEE80211_RATE_SHORT_PREAMBLE) && - tx->sdata->vif.bss_conf.use_short_preamble && - (!tx->sta || test_sta_flags(tx->sta, WLAN_STA_SHORT_PREAMBLE))) { - info->flags |= IEEE80211_TX_CTL_SHORT_PREAMBLE; + /* + * set up the RTS/CTS rate as the fastest basic rate + * that is not faster than the data rate + * + * XXX: Should this check all retry rates? + */ + if (!(info->control.rates[0].flags & IEEE80211_TX_RC_MCS)) { + s8 baserate = 0; + + rate = &sband->bitrates[info->control.rates[0].idx]; + + for (i = 0; i < sband->n_bitrates; i++) { + /* must be a basic rate */ + if (!(tx->sdata->vif.bss_conf.basic_rates & BIT(i))) + continue; + /* must not be faster than the data rate */ + if (sband->bitrates[i].bitrate > rate->bitrate) + continue; + /* maximum */ + if (sband->bitrates[baserate].bitrate < + sband->bitrates[i].bitrate) + baserate = i; + } + + info->control.rts_cts_rate_idx = baserate; } - if ((info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) || - (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)) { - struct ieee80211_rate *rate; - s8 baserate = -1; - int idx; + for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { + /* + * make sure there's no valid rate following + * an invalid one, just in case drivers don't + * take the API seriously to stop at -1. + */ + if (inval) { + info->control.rates[i].idx = -1; + continue; + } + if (info->control.rates[i].idx < 0) { + inval = true; + continue; + } - /* Do not use multiple retry rates when using RTS/CTS */ - info->control.retries[0].rate_idx = -1; + /* + * For now assume MCS is already set up correctly, this + * needs to be fixed. + */ + if (info->control.rates[i].flags & IEEE80211_TX_RC_MCS) { + WARN_ON(info->control.rates[i].idx > 76); + continue; + } - /* Use min(data rate, max base rate) as CTS/RTS rate */ - rate = &sband->bitrates[tx->rate_idx]; + /* set up RTS protection if desired */ + if (rts) + info->control.rates[i].flags |= + IEEE80211_TX_RC_USE_RTS_CTS; - for (idx = 0; idx < sband->n_bitrates; idx++) { - if (sband->bitrates[idx].bitrate > rate->bitrate) - continue; - if (tx->sdata->vif.bss_conf.basic_rates & BIT(idx) && - (baserate < 0 || - (sband->bitrates[baserate].bitrate - < sband->bitrates[idx].bitrate))) - baserate = idx; + /* RC is busted */ + if (WARN_ON(info->control.rates[i].idx >= + sband->n_bitrates)) { + info->control.rates[i].idx = -1; + continue; } - if (baserate >= 0) - info->control.rts_cts_rate_idx = baserate; - else - info->control.rts_cts_rate_idx = 0; + rate = &sband->bitrates[info->control.rates[i].idx]; + + /* set up short preamble */ + if (short_preamble && + rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) + info->control.rates[i].flags |= + IEEE80211_TX_RC_USE_SHORT_PREAMBLE; + + /* set up G protection */ + if (!rts && tx->sdata->vif.bss_conf.use_cts_prot && + rate->flags & IEEE80211_RATE_ERP_G) + info->control.rates[i].flags |= + IEEE80211_TX_RC_USE_CTS_PROTECT; } + return TX_CONTINUE; +} + +static ieee80211_tx_result debug_noinline +ieee80211_tx_h_misc(struct ieee80211_tx_data *tx) +{ + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb); + if (tx->sta) info->control.sta = &tx->sta->sta; @@ -678,6 +699,7 @@ ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx) left = payload_len - per_fragm; for (i = 0; i < num_fragm - 1; i++) { struct ieee80211_hdr *fhdr; + struct ieee80211_tx_info *info; size_t copylen; if (left <= 0) @@ -692,20 +714,45 @@ ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx) IEEE80211_ENCRYPT_TAILROOM); if (!frag) goto fail; + /* Make sure that all fragments use the same priority so * that they end up using the same TX queue */ frag->priority = first->priority; + skb_reserve(frag, tx->local->tx_headroom + IEEE80211_ENCRYPT_HEADROOM); + + /* copy TX information */ + info = IEEE80211_SKB_CB(frag); + memcpy(info, first->cb, sizeof(frag->cb)); + + /* copy/fill in 802.11 header */ fhdr = (struct ieee80211_hdr *) skb_put(frag, hdrlen); memcpy(fhdr, first->data, hdrlen); - if (i == num_fragm - 2) - fhdr->frame_control &= cpu_to_le16(~IEEE80211_FCTL_MOREFRAGS); fhdr->seq_ctrl = cpu_to_le16(seq | ((i + 1) & IEEE80211_SCTL_FRAG)); + + if (i == num_fragm - 2) { + /* clear MOREFRAGS bit for the last fragment */ + fhdr->frame_control &= cpu_to_le16(~IEEE80211_FCTL_MOREFRAGS); + } else { + /* + * No multi-rate retries for fragmented frames, that + * would completely throw off the NAV at other STAs. + */ + info->control.rates[1].idx = -1; + info->control.rates[2].idx = -1; + info->control.rates[3].idx = -1; + info->control.rates[4].idx = -1; + BUILD_BUG_ON(IEEE80211_TX_MAX_RATES != 5); + info->flags &= ~IEEE80211_TX_CTL_RATE_CTRL_PROBE; + } + + /* copy data */ copylen = left > per_fragm ? per_fragm : left; memcpy(skb_put(frag, copylen), pos, copylen); - memcpy(frag->cb, first->cb, sizeof(frag->cb)); + skb_copy_queue_mapping(frag, first); + frag->do_not_encrypt = first->do_not_encrypt; pos += copylen; @@ -765,12 +812,10 @@ ieee80211_tx_h_calculate_duration(struct ieee80211_tx_data *tx) tx->extra_frag[0]->len); for (i = 0; i < tx->num_extra_frag; i++) { - if (i + 1 < tx->num_extra_frag) { + if (i + 1 < tx->num_extra_frag) next_len = tx->extra_frag[i + 1]->len; - } else { + else next_len = 0; - tx->rate_idx = tx->last_frag_rate_idx; - } hdr = (struct ieee80211_hdr *)tx->extra_frag[i]->data; hdr->duration_id = ieee80211_duration(tx, 0, next_len); @@ -823,7 +868,6 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx, (struct ieee80211_radiotap_header *) skb->data; struct ieee80211_supported_band *sband; int ret = ieee80211_radiotap_iterator_init(&iterator, rthdr, skb->len); - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); sband = tx->local->hw.wiphy->bands[tx->channel->band]; @@ -837,8 +881,6 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx, */ while (!ret) { - int i, target_rate; - ret = ieee80211_radiotap_iterator_next(&iterator); if (ret) @@ -852,38 +894,6 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx, * get_unaligned((type *)iterator.this_arg) to dereference * iterator.this_arg for type "type" safely on all arches. */ - case IEEE80211_RADIOTAP_RATE: - /* - * radiotap rate u8 is in 500kbps units eg, 0x02=1Mbps - * ieee80211 rate int is in 100kbps units eg, 0x0a=1Mbps - */ - target_rate = (*iterator.this_arg) * 5; - for (i = 0; i < sband->n_bitrates; i++) { - struct ieee80211_rate *r; - - r = &sband->bitrates[i]; - - if (r->bitrate == target_rate) { - tx->rate_idx = i; - break; - } - } - break; - - case IEEE80211_RADIOTAP_ANTENNA: - /* - * radiotap uses 0 for 1st ant, mac80211 is 1 for - * 1st ant - */ - info->antenna_sel_tx = (*iterator.this_arg) + 1; - break; - -#if 0 - case IEEE80211_RADIOTAP_DBM_TX_POWER: - control->power_level = *iterator.this_arg; - break; -#endif - case IEEE80211_RADIOTAP_FLAGS: if (*iterator.this_arg & IEEE80211_RADIOTAP_F_FCS) { /* @@ -949,8 +959,6 @@ __ieee80211_tx_prepare(struct ieee80211_tx_data *tx, tx->local = local; tx->sdata = IEEE80211_DEV_TO_SUB_IF(dev); tx->channel = local->hw.conf.channel; - tx->rate_idx = -1; - tx->last_frag_rate_idx = -1; /* * Set this flag (used below to indicate "automatic fragmentation"), * it will be cleared/left by radiotap as desired. @@ -1051,23 +1059,11 @@ static int __ieee80211_tx(struct ieee80211_local *local, struct sk_buff *skb, if (!tx->extra_frag[i]) continue; info = IEEE80211_SKB_CB(tx->extra_frag[i]); - info->flags &= ~(IEEE80211_TX_CTL_USE_RTS_CTS | - IEEE80211_TX_CTL_USE_CTS_PROTECT | - IEEE80211_TX_CTL_CLEAR_PS_FILT | + info->flags &= ~(IEEE80211_TX_CTL_CLEAR_PS_FILT | IEEE80211_TX_CTL_FIRST_FRAGMENT); if (netif_subqueue_stopped(local->mdev, tx->extra_frag[i])) return IEEE80211_TX_FRAG_AGAIN; - if (i == tx->num_extra_frag) { - info->tx_rate_idx = tx->last_frag_rate_idx; - - if (tx->flags & IEEE80211_TX_PROBE_LAST_FRAG) - info->flags |= - IEEE80211_TX_CTL_RATE_CTRL_PROBE; - else - info->flags &= - ~IEEE80211_TX_CTL_RATE_CTRL_PROBE; - } ret = local->ops->tx(local_to_hw(local), tx->extra_frag[i]); @@ -1204,9 +1200,6 @@ retry: store->skb = skb; store->extra_frag = tx.extra_frag; store->num_extra_frag = tx.num_extra_frag; - store->last_frag_rate_idx = tx.last_frag_rate_idx; - store->last_frag_rate_ctrl_probe = - !!(tx.flags & IEEE80211_TX_PROBE_LAST_FRAG); } out: rcu_read_unlock(); @@ -1763,10 +1756,7 @@ void ieee80211_tx_pending(unsigned long data) store = &local->pending_packet[i]; tx.extra_frag = store->extra_frag; tx.num_extra_frag = store->num_extra_frag; - tx.last_frag_rate_idx = store->last_frag_rate_idx; tx.flags = 0; - if (store->last_frag_rate_ctrl_probe) - tx.flags |= IEEE80211_TX_PROBE_LAST_FRAG; ret = __ieee80211_tx(local, store->skb, &tx); if (ret) { if (ret == IEEE80211_TX_FRAG_AGAIN) @@ -1854,7 +1844,6 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw, struct ieee80211_sub_if_data *sdata = NULL; struct ieee80211_if_ap *ap = NULL; struct ieee80211_if_sta *ifsta = NULL; - struct rate_selection rsel; struct beacon_data *beacon; struct ieee80211_supported_band *sband; enum ieee80211_band band = local->hw.conf.channel->band; @@ -1958,32 +1947,23 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw, skb->do_not_encrypt = 1; info->band = band; - rate_control_get_rate(sdata, sband, NULL, skb, &rsel); - - if (unlikely(rsel.rate_idx < 0)) { - if (net_ratelimit()) { - printk(KERN_DEBUG "%s: ieee80211_beacon_get: " - "no rate found\n", - wiphy_name(local->hw.wiphy)); - } - dev_kfree_skb_any(skb); - skb = NULL; - goto out; - } + /* + * XXX: For now, always use the lowest rate + */ + info->control.rates[0].idx = 0; + info->control.rates[0].count = 1; + info->control.rates[1].idx = -1; + info->control.rates[2].idx = -1; + info->control.rates[3].idx = -1; + info->control.rates[4].idx = -1; + BUILD_BUG_ON(IEEE80211_TX_MAX_RATES != 5); info->control.vif = vif; - info->tx_rate_idx = rsel.rate_idx; info->flags |= IEEE80211_TX_CTL_NO_ACK; info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT; info->flags |= IEEE80211_TX_CTL_ASSIGN_SEQ; - if (sdata->vif.bss_conf.use_short_preamble && - sband->bitrates[rsel.rate_idx].flags & IEEE80211_RATE_SHORT_PREAMBLE) - info->flags |= IEEE80211_TX_CTL_SHORT_PREAMBLE; - - info->control.retry_limit = 1; - -out: + out: rcu_read_unlock(); return skb; } diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c index f7e442f80a17..31d2e74a1bc0 100644 --- a/net/mac80211/wext.c +++ b/net/mac80211/wext.c @@ -636,8 +636,8 @@ static int ieee80211_ioctl_giwrate(struct net_device *dev, sta = sta_info_get(local, sdata->u.sta.bssid); - if (sta && sta->last_txrate_idx < sband->n_bitrates) - rate->value = sband->bitrates[sta->last_txrate_idx].bitrate; + if (sta && !(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) + rate->value = sband->bitrates[sta->last_tx_rate.idx].bitrate; else rate->value = 0; -- cgit v1.2.3 From 0bbac08f0a23898787978c0b405474e453e9824c Mon Sep 17 00:00:00 2001 From: John Daiker Date: Fri, 17 Oct 2008 12:16:00 -0700 Subject: ath5k: reduce checkpatch.pl errors A few changes to reduce checkpatch.pl errors in the ath5k driver. For the most part, I only fixed cosmetic things, and left the actual 'code flow' untouched (hopefully)! Diff is against wireless-testing HEAD. Signed-off-by: John Daiker Reviewed-by: Bob Copeland Acked-by: Nick Kossifidis Signed-off-by: John W. Linville --- drivers/net/wireless/ath5k/base.c | 11 +++++------ drivers/net/wireless/ath5k/initvals.c | 8 ++++---- drivers/net/wireless/ath5k/phy.c | 5 +++-- 3 files changed, 12 insertions(+), 12 deletions(-) (limited to 'drivers/net/wireless/ath5k/base.c') diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c index 3773d983ea66..6caabebc4c66 100644 --- a/drivers/net/wireless/ath5k/base.c +++ b/drivers/net/wireless/ath5k/base.c @@ -2528,8 +2528,7 @@ ath5k_register_led(struct ath5k_softc *sc, struct ath5k_led *led, led->led_dev.brightness_set = ath5k_led_brightness_set; err = led_classdev_register(&sc->pdev->dev, &led->led_dev); - if (err) - { + if (err) { ATH5K_WARN(sc, "could not register LED %s\n", name); led->sc = NULL; } @@ -2890,9 +2889,9 @@ static void ath5k_configure_filter(struct ieee80211_hw *hw, if (*new_flags & FIF_PROMISC_IN_BSS) { rfilt |= AR5K_RX_FILTER_PROM; __set_bit(ATH_STAT_PROMISC, sc->status); - } - else + } else { __clear_bit(ATH_STAT_PROMISC, sc->status); + } } /* Note, AR5K_RX_FILTER_MCAST is already enabled */ @@ -2956,7 +2955,7 @@ static void ath5k_configure_filter(struct ieee80211_hw *hw, AR5K_RX_FILTER_PROBEREQ | AR5K_RX_FILTER_PROM; /* Set filters */ - ath5k_hw_set_rx_filter(ah,rfilt); + ath5k_hw_set_rx_filter(ah, rfilt); /* Set multicast bits */ ath5k_hw_set_mcast_filter(ah, mfilt[0], mfilt[1]); @@ -2973,7 +2972,7 @@ ath5k_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, struct ath5k_softc *sc = hw->priv; int ret = 0; - switch(key->alg) { + switch (key->alg) { case ALG_WEP: /* XXX: fix hardware encryption, its not working. For now * allow software encryption */ diff --git a/drivers/net/wireless/ath5k/initvals.c b/drivers/net/wireless/ath5k/initvals.c index ceaa6c475c06..450bd6e945ff 100644 --- a/drivers/net/wireless/ath5k/initvals.c +++ b/drivers/net/wireless/ath5k/initvals.c @@ -1681,7 +1681,7 @@ int ath5k_hw_write_initvals(struct ath5k_hw *ah, u8 mode, bool change_channel) */ /* For AR5212 and combatible */ - if (ah->ah_version == AR5K_AR5212){ + if (ah->ah_version == AR5K_AR5212) { /* First set of mode-specific settings */ ath5k_hw_ini_mode_registers(ah, @@ -1695,7 +1695,7 @@ int ath5k_hw_write_initvals(struct ath5k_hw *ah, u8 mode, bool change_channel) ar5212_ini, change_channel); /* Second set of mode-specific settings */ - if (ah->ah_radio == AR5K_RF5111){ + if (ah->ah_radio == AR5K_RF5111) { ath5k_hw_ini_mode_registers(ah, ARRAY_SIZE(ar5212_rf5111_ini_mode_end), @@ -1706,7 +1706,7 @@ int ath5k_hw_write_initvals(struct ath5k_hw *ah, u8 mode, bool change_channel) ARRAY_SIZE(rf5111_ini_bbgain), rf5111_ini_bbgain, change_channel); - } else if (ah->ah_radio == AR5K_RF5112){ + } else if (ah->ah_radio == AR5K_RF5112) { ath5k_hw_ini_mode_registers(ah, ARRAY_SIZE(ar5212_rf5112_ini_mode_end), @@ -1716,7 +1716,7 @@ int ath5k_hw_write_initvals(struct ath5k_hw *ah, u8 mode, bool change_channel) ARRAY_SIZE(rf5112_ini_bbgain), rf5112_ini_bbgain, change_channel); - } else if (ah->ah_radio == AR5K_RF5413){ + } else if (ah->ah_radio == AR5K_RF5413) { ath5k_hw_ini_mode_registers(ah, ARRAY_SIZE(rf5413_ini_mode_end), diff --git a/drivers/net/wireless/ath5k/phy.c b/drivers/net/wireless/ath5k/phy.c index e43f6563e61a..69625bf4d11c 100644 --- a/drivers/net/wireless/ath5k/phy.c +++ b/drivers/net/wireless/ath5k/phy.c @@ -1412,7 +1412,8 @@ static int ath5k_hw_rf5112_rfregs(struct ath5k_hw *ah, rf_ini = rfregs_2112a; rf_size = ARRAY_SIZE(rfregs_5112a); if (mode < 2) { - ATH5K_ERR(ah->ah_sc,"invalid channel mode: %i\n",mode); + ATH5K_ERR(ah->ah_sc, "invalid channel mode: %i\n", + mode); return -EINVAL; } mode = mode - 2; /*no a/turboa modes for 2112*/ @@ -1708,7 +1709,7 @@ enum ath5k_rfgain ath5k_hw_get_rf_gain(struct ath5k_hw *ah) if (ah->ah_radio >= AR5K_RF5112) { ath5k_hw_rfregs_gainf_corr(ah); ah->ah_gain.g_current = - ah->ah_gain.g_current>=ah->ah_gain.g_f_corr ? + ah->ah_gain.g_current >= ah->ah_gain.g_f_corr ? (ah->ah_gain.g_current-ah->ah_gain.g_f_corr) : 0; } -- cgit v1.2.3 From 4c674c60bd567597f1224973712b352f4f474890 Mon Sep 17 00:00:00 2001 From: Nick Kossifidis Date: Sun, 26 Oct 2008 20:40:25 +0200 Subject: ath5k: Update interrupt masking code *Properly get/set all available ISR/IMR values and review common/uncommon bits *Better handling of per-txq interrupts (we can now resolve what q is generating each interrupt -this will help in debuging wme later) *Some minor updates from legacy-hal *Properly handle RXNOFRM and TXNOFRM interrupt masking (even when we don't set them on IMR they keep showing up, so we disable them by zeroing AR5K_RXNOFRM and AR5K_TXNOFRM registers). This doesn't exist on legacy-hal but i've tested it on various cards and it works fine. Changes-Licensed-under: ISC Signed-Off-by: Nick Kossifidis Signed-off-by: John W. Linville --- drivers/net/wireless/ath5k/ath5k.h | 86 ++++++++++++----- drivers/net/wireless/ath5k/base.c | 7 +- drivers/net/wireless/ath5k/dma.c | 190 ++++++++++++++++++++++++++++--------- drivers/net/wireless/ath5k/qcu.c | 37 +++++++- drivers/net/wireless/ath5k/reg.h | 3 +- drivers/net/wireless/ath5k/reset.c | 3 +- 6 files changed, 247 insertions(+), 79 deletions(-) (limited to 'drivers/net/wireless/ath5k/base.c') diff --git a/drivers/net/wireless/ath5k/ath5k.h b/drivers/net/wireless/ath5k/ath5k.h index 53ea439aff48..b11792039911 100644 --- a/drivers/net/wireless/ath5k/ath5k.h +++ b/drivers/net/wireless/ath5k/ath5k.h @@ -507,11 +507,15 @@ enum ath5k_tx_queue_id { #define AR5K_TXQ_FLAG_TXEOLINT_ENABLE 0x0004 /* Enable TXEOL interrupt -not used- */ #define AR5K_TXQ_FLAG_TXDESCINT_ENABLE 0x0008 /* Enable TXDESC interrupt -not used- */ #define AR5K_TXQ_FLAG_TXURNINT_ENABLE 0x0010 /* Enable TXURN interrupt */ -#define AR5K_TXQ_FLAG_BACKOFF_DISABLE 0x0020 /* Disable random post-backoff */ -#define AR5K_TXQ_FLAG_RDYTIME_EXP_POLICY_ENABLE 0x0040 /* Enable ready time expiry policy (?)*/ -#define AR5K_TXQ_FLAG_FRAG_BURST_BACKOFF_ENABLE 0x0080 /* Enable backoff while bursting */ -#define AR5K_TXQ_FLAG_POST_FR_BKOFF_DIS 0x0100 /* Disable backoff while bursting */ -#define AR5K_TXQ_FLAG_COMPRESSION_ENABLE 0x0200 /* Enable hw compression -not implemented-*/ +#define AR5K_TXQ_FLAG_CBRORNINT_ENABLE 0x0020 /* Enable CBRORN interrupt */ +#define AR5K_TXQ_FLAG_CBRURNINT_ENABLE 0x0040 /* Enable CBRURN interrupt */ +#define AR5K_TXQ_FLAG_QTRIGINT_ENABLE 0x0080 /* Enable QTRIG interrupt */ +#define AR5K_TXQ_FLAG_TXNOFRMINT_ENABLE 0x0100 /* Enable TXNOFRM interrupt */ +#define AR5K_TXQ_FLAG_BACKOFF_DISABLE 0x0200 /* Disable random post-backoff */ +#define AR5K_TXQ_FLAG_RDYTIME_EXP_POLICY_ENABLE 0x0300 /* Enable ready time expiry policy (?)*/ +#define AR5K_TXQ_FLAG_FRAG_BURST_BACKOFF_ENABLE 0x0800 /* Enable backoff while bursting */ +#define AR5K_TXQ_FLAG_POST_FR_BKOFF_DIS 0x1000 /* Disable backoff while bursting */ +#define AR5K_TXQ_FLAG_COMPRESSION_ENABLE 0x2000 /* Enable hw compression -not implemented-*/ /* * A struct to hold tx queue's parameters @@ -853,7 +857,7 @@ enum ath5k_ant_setting { * checked. We should do this with ath5k_hw_update_mib_counters() but * it seems we should also then do some noise immunity work. * @AR5K_INT_RXPHY: RX PHY Error - * @AR5K_INT_RXKCM: ?? + * @AR5K_INT_RXKCM: RX Key cache miss * @AR5K_INT_SWBA: SoftWare Beacon Alert - indicates its time to send a * beacon that must be handled in software. The alternative is if you * have VEOL support, in that case you let the hardware deal with things. @@ -869,7 +873,7 @@ enum ath5k_ant_setting { * @AR5K_INT_FATAL: Fatal errors were encountered, typically caused by DMA * errors. These types of errors we can enable seem to be of type * AR5K_SIMR2_MCABT, AR5K_SIMR2_SSERR and AR5K_SIMR2_DPERR. - * @AR5K_INT_GLOBAL: Seems to be used to clear and set the IER + * @AR5K_INT_GLOBAL: Used to clear and set the IER * @AR5K_INT_NOCARD: signals the card has been removed * @AR5K_INT_COMMON: common interrupts shared amogst MACs with the same * bit value @@ -881,36 +885,61 @@ enum ath5k_ant_setting { * MACs. */ enum ath5k_int { - AR5K_INT_RX = 0x00000001, /* Not common */ + AR5K_INT_RXOK = 0x00000001, AR5K_INT_RXDESC = 0x00000002, + AR5K_INT_RXERR = 0x00000004, AR5K_INT_RXNOFRM = 0x00000008, AR5K_INT_RXEOL = 0x00000010, AR5K_INT_RXORN = 0x00000020, - AR5K_INT_TX = 0x00000040, /* Not common */ + AR5K_INT_TXOK = 0x00000040, AR5K_INT_TXDESC = 0x00000080, + AR5K_INT_TXERR = 0x00000100, + AR5K_INT_TXNOFRM = 0x00000200, + AR5K_INT_TXEOL = 0x00000400, AR5K_INT_TXURN = 0x00000800, AR5K_INT_MIB = 0x00001000, + AR5K_INT_SWI = 0x00002000, AR5K_INT_RXPHY = 0x00004000, AR5K_INT_RXKCM = 0x00008000, AR5K_INT_SWBA = 0x00010000, + AR5K_INT_BRSSI = 0x00020000, AR5K_INT_BMISS = 0x00040000, - AR5K_INT_BNR = 0x00100000, /* Not common */ - AR5K_INT_GPIO = 0x01000000, - AR5K_INT_FATAL = 0x40000000, /* Not common */ - AR5K_INT_GLOBAL = 0x80000000, - - AR5K_INT_COMMON = AR5K_INT_RXNOFRM - | AR5K_INT_RXDESC - | AR5K_INT_RXEOL - | AR5K_INT_RXORN - | AR5K_INT_TXURN - | AR5K_INT_TXDESC - | AR5K_INT_MIB - | AR5K_INT_RXPHY - | AR5K_INT_RXKCM - | AR5K_INT_SWBA - | AR5K_INT_BMISS - | AR5K_INT_GPIO, + AR5K_INT_FATAL = 0x00080000, /* Non common */ + AR5K_INT_BNR = 0x00100000, /* Non common */ + AR5K_INT_TIM = 0x00200000, /* Non common */ + AR5K_INT_DTIM = 0x00400000, /* Non common */ + AR5K_INT_DTIM_SYNC = 0x00800000, /* Non common */ + AR5K_INT_GPIO = 0x01000000, + AR5K_INT_BCN_TIMEOUT = 0x02000000, /* Non common */ + AR5K_INT_CAB_TIMEOUT = 0x04000000, /* Non common */ + AR5K_INT_RX_DOPPLER = 0x08000000, /* Non common */ + AR5K_INT_QCBRORN = 0x10000000, /* Non common */ + AR5K_INT_QCBRURN = 0x20000000, /* Non common */ + AR5K_INT_QTRIG = 0x40000000, /* Non common */ + AR5K_INT_GLOBAL = 0x80000000, + + AR5K_INT_COMMON = AR5K_INT_RXOK + | AR5K_INT_RXDESC + | AR5K_INT_RXERR + | AR5K_INT_RXNOFRM + | AR5K_INT_RXEOL + | AR5K_INT_RXORN + | AR5K_INT_TXOK + | AR5K_INT_TXDESC + | AR5K_INT_TXERR + | AR5K_INT_TXNOFRM + | AR5K_INT_TXEOL + | AR5K_INT_TXURN + | AR5K_INT_MIB + | AR5K_INT_SWI + | AR5K_INT_RXPHY + | AR5K_INT_RXKCM + | AR5K_INT_SWBA + | AR5K_INT_BRSSI + | AR5K_INT_BMISS + | AR5K_INT_GPIO + | AR5K_INT_GLOBAL, + AR5K_INT_NOCARD = 0xffffffff }; @@ -1081,6 +1110,11 @@ struct ath5k_hw { u32 ah_txq_imr_txurn; u32 ah_txq_imr_txdesc; u32 ah_txq_imr_txeol; + u32 ah_txq_imr_cbrorn; + u32 ah_txq_imr_cbrurn; + u32 ah_txq_imr_qtrig; + u32 ah_txq_imr_nofrm; + u32 ah_txq_isr; u32 *ah_rf_banks; size_t ah_rf_banks_size; struct ath5k_gain ah_gain; diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c index 6caabebc4c66..7ac5f2847da5 100644 --- a/drivers/net/wireless/ath5k/base.c +++ b/drivers/net/wireless/ath5k/base.c @@ -2216,7 +2216,7 @@ ath5k_init(struct ath5k_softc *sc, bool is_resume) */ sc->curchan = sc->hw->conf.channel; sc->curband = &sc->sbands[sc->curchan->band]; - sc->imask = AR5K_INT_RX | AR5K_INT_TX | AR5K_INT_RXEOL | + sc->imask = AR5K_INT_RXOK | AR5K_INT_TXOK | AR5K_INT_RXEOL | AR5K_INT_RXORN | AR5K_INT_FATAL | AR5K_INT_GLOBAL | AR5K_INT_MIB; ret = ath5k_reset(sc, false, false); @@ -2410,9 +2410,10 @@ ath5k_intr(int irq, void *dev_id) /* bump tx trigger level */ ath5k_hw_update_tx_triglevel(ah, true); } - if (status & AR5K_INT_RX) + if (status & (AR5K_INT_RXOK | AR5K_INT_RXERR)) tasklet_schedule(&sc->rxtq); - if (status & AR5K_INT_TX) + if (status & (AR5K_INT_TXOK | AR5K_INT_TXDESC + | AR5K_INT_TXERR | AR5K_INT_TXEOL)) tasklet_schedule(&sc->txtq); if (status & AR5K_INT_BMISS) { } diff --git a/drivers/net/wireless/ath5k/dma.c b/drivers/net/wireless/ath5k/dma.c index 7adceb2c7fab..7e2b1a67e5da 100644 --- a/drivers/net/wireless/ath5k/dma.c +++ b/drivers/net/wireless/ath5k/dma.c @@ -472,9 +472,6 @@ bool ath5k_hw_is_intr_pending(struct ath5k_hw *ah) * * NOTE: We use read-and-clear register, so after this function is called ISR * is zeroed. - * - * XXX: Why filter interrupts in sw with interrupt_mask ? No benefit at all - * plus it can be misleading (one might thing that we save interrupts this way) */ int ath5k_hw_get_isr(struct ath5k_hw *ah, enum ath5k_int *interrupt_mask) { @@ -494,11 +491,16 @@ int ath5k_hw_get_isr(struct ath5k_hw *ah, enum ath5k_int *interrupt_mask) } } else { /* - * Read interrupt status from the Read-And-Clear - * shadow register. + * Read interrupt status from Interrupt + * Status Register shadow copy (Read And Clear) + * * Note: PISR/SISR Not available on 5210 */ data = ath5k_hw_reg_read(ah, AR5K_RAC_PISR); + if (unlikely(data == AR5K_INT_NOCARD)) { + *interrupt_mask = data; + return -ENODEV; + } } /* @@ -506,17 +508,9 @@ int ath5k_hw_get_isr(struct ath5k_hw *ah, enum ath5k_int *interrupt_mask) */ *interrupt_mask = (data & AR5K_INT_COMMON) & ah->ah_imr; - if (unlikely(data == AR5K_INT_NOCARD)) - return -ENODEV; - - if (data & (AR5K_ISR_RXOK | AR5K_ISR_RXERR)) - *interrupt_mask |= AR5K_INT_RX; - - if (data & (AR5K_ISR_TXOK | AR5K_ISR_TXERR - | AR5K_ISR_TXDESC | AR5K_ISR_TXEOL)) - *interrupt_mask |= AR5K_INT_TX; - if (ah->ah_version != AR5K_AR5210) { + u32 sisr2 = ath5k_hw_reg_read(ah, AR5K_RAC_SISR2); + /*HIU = Host Interface Unit (PCI etc)*/ if (unlikely(data & (AR5K_ISR_HIUERR))) *interrupt_mask |= AR5K_INT_FATAL; @@ -524,24 +518,93 @@ int ath5k_hw_get_isr(struct ath5k_hw *ah, enum ath5k_int *interrupt_mask) /*Beacon Not Ready*/ if (unlikely(data & (AR5K_ISR_BNR))) *interrupt_mask |= AR5K_INT_BNR; - } - /* - * XXX: BMISS interrupts may occur after association. - * I found this on 5210 code but it needs testing. If this is - * true we should disable them before assoc and re-enable them - * after a successfull assoc + some jiffies. - */ -#if 0 - interrupt_mask &= ~AR5K_INT_BMISS; -#endif + if (unlikely(sisr2 & (AR5K_SISR2_SSERR | + AR5K_SISR2_DPERR | + AR5K_SISR2_MCABT))) + *interrupt_mask |= AR5K_INT_FATAL; + + if (data & AR5K_ISR_TIM) + *interrupt_mask |= AR5K_INT_TIM; + + if (data & AR5K_ISR_BCNMISC) { + if (sisr2 & AR5K_SISR2_TIM) + *interrupt_mask |= AR5K_INT_TIM; + if (sisr2 & AR5K_SISR2_DTIM) + *interrupt_mask |= AR5K_INT_DTIM; + if (sisr2 & AR5K_SISR2_DTIM_SYNC) + *interrupt_mask |= AR5K_INT_DTIM_SYNC; + if (sisr2 & AR5K_SISR2_BCN_TIMEOUT) + *interrupt_mask |= AR5K_INT_BCN_TIMEOUT; + if (sisr2 & AR5K_SISR2_CAB_TIMEOUT) + *interrupt_mask |= AR5K_INT_CAB_TIMEOUT; + } + + if (data & AR5K_ISR_RXDOPPLER) + *interrupt_mask |= AR5K_INT_RX_DOPPLER; + if (data & AR5K_ISR_QCBRORN) { + *interrupt_mask |= AR5K_INT_QCBRORN; + ah->ah_txq_isr |= AR5K_REG_MS( + ath5k_hw_reg_read(ah, AR5K_RAC_SISR3), + AR5K_SISR3_QCBRORN); + } + if (data & AR5K_ISR_QCBRURN) { + *interrupt_mask |= AR5K_INT_QCBRURN; + ah->ah_txq_isr |= AR5K_REG_MS( + ath5k_hw_reg_read(ah, AR5K_RAC_SISR3), + AR5K_SISR3_QCBRURN); + } + if (data & AR5K_ISR_QTRIG) { + *interrupt_mask |= AR5K_INT_QTRIG; + ah->ah_txq_isr |= AR5K_REG_MS( + ath5k_hw_reg_read(ah, AR5K_RAC_SISR4), + AR5K_SISR4_QTRIG); + } + + if (data & AR5K_ISR_TXOK) + ah->ah_txq_isr |= AR5K_REG_MS( + ath5k_hw_reg_read(ah, AR5K_RAC_SISR0), + AR5K_SISR0_QCU_TXOK); + + if (data & AR5K_ISR_TXDESC) + ah->ah_txq_isr |= AR5K_REG_MS( + ath5k_hw_reg_read(ah, AR5K_RAC_SISR0), + AR5K_SISR0_QCU_TXDESC); + + if (data & AR5K_ISR_TXERR) + ah->ah_txq_isr |= AR5K_REG_MS( + ath5k_hw_reg_read(ah, AR5K_RAC_SISR1), + AR5K_SISR1_QCU_TXERR); + + if (data & AR5K_ISR_TXEOL) + ah->ah_txq_isr |= AR5K_REG_MS( + ath5k_hw_reg_read(ah, AR5K_RAC_SISR1), + AR5K_SISR1_QCU_TXEOL); + + if (data & AR5K_ISR_TXURN) + ah->ah_txq_isr |= AR5K_REG_MS( + ath5k_hw_reg_read(ah, AR5K_RAC_SISR2), + AR5K_SISR2_QCU_TXURN); + } else { + if (unlikely(data & (AR5K_ISR_SSERR | AR5K_ISR_MCABT + | AR5K_ISR_HIUERR | AR5K_ISR_DPERR))) + *interrupt_mask |= AR5K_INT_FATAL; + + /* + * XXX: BMISS interrupts may occur after association. + * I found this on 5210 code but it needs testing. If this is + * true we should disable them before assoc and re-enable them + * after a successfull assoc + some jiffies. + interrupt_mask &= ~AR5K_INT_BMISS; + */ + } /* * In case we didn't handle anything, * print the register value. */ if (unlikely(*interrupt_mask == 0 && net_ratelimit())) - ATH5K_PRINTF("0x%08x\n", data); + ATH5K_PRINTF("ISR: 0x%08x IMR: 0x%08x\n", data, ah->ah_imr); return 0; } @@ -560,14 +623,17 @@ enum ath5k_int ath5k_hw_set_imr(struct ath5k_hw *ah, enum ath5k_int new_mask) { enum ath5k_int old_mask, int_mask; + old_mask = ah->ah_imr; + /* * Disable card interrupts to prevent any race conditions - * (they will be re-enabled afterwards). + * (they will be re-enabled afterwards if AR5K_INT GLOBAL + * is set again on the new mask). */ - ath5k_hw_reg_write(ah, AR5K_IER_DISABLE, AR5K_IER); - ath5k_hw_reg_read(ah, AR5K_IER); - - old_mask = ah->ah_imr; + if (old_mask & AR5K_INT_GLOBAL) { + ath5k_hw_reg_write(ah, AR5K_IER_DISABLE, AR5K_IER); + ath5k_hw_reg_read(ah, AR5K_IER); + } /* * Add additional, chipset-dependent interrupt mask flags @@ -575,30 +641,64 @@ enum ath5k_int ath5k_hw_set_imr(struct ath5k_hw *ah, enum ath5k_int new_mask) */ int_mask = new_mask & AR5K_INT_COMMON; - if (new_mask & AR5K_INT_RX) - int_mask |= AR5K_IMR_RXOK | AR5K_IMR_RXERR | AR5K_IMR_RXORN | - AR5K_IMR_RXDESC; - - if (new_mask & AR5K_INT_TX) - int_mask |= AR5K_IMR_TXOK | AR5K_IMR_TXERR | AR5K_IMR_TXDESC | - AR5K_IMR_TXURN; - if (ah->ah_version != AR5K_AR5210) { + /* Preserve per queue TXURN interrupt mask */ + u32 simr2 = ath5k_hw_reg_read(ah, AR5K_SIMR2) + & AR5K_SIMR2_QCU_TXURN; + if (new_mask & AR5K_INT_FATAL) { int_mask |= AR5K_IMR_HIUERR; - AR5K_REG_ENABLE_BITS(ah, AR5K_SIMR2, AR5K_SIMR2_MCABT | - AR5K_SIMR2_SSERR | AR5K_SIMR2_DPERR); + simr2 |= (AR5K_SIMR2_MCABT | AR5K_SIMR2_SSERR + | AR5K_SIMR2_DPERR); } + + /*Beacon Not Ready*/ + if (new_mask & AR5K_INT_BNR) + int_mask |= AR5K_INT_BNR; + + if (new_mask & AR5K_INT_TIM) + int_mask |= AR5K_IMR_TIM; + + if (new_mask & AR5K_INT_TIM) + simr2 |= AR5K_SISR2_TIM; + if (new_mask & AR5K_INT_DTIM) + simr2 |= AR5K_SISR2_DTIM; + if (new_mask & AR5K_INT_DTIM_SYNC) + simr2 |= AR5K_SISR2_DTIM_SYNC; + if (new_mask & AR5K_INT_BCN_TIMEOUT) + simr2 |= AR5K_SISR2_BCN_TIMEOUT; + if (new_mask & AR5K_INT_CAB_TIMEOUT) + simr2 |= AR5K_SISR2_CAB_TIMEOUT; + + if (new_mask & AR5K_INT_RX_DOPPLER) + int_mask |= AR5K_IMR_RXDOPPLER; + + /* Note: Per queue interrupt masks + * are set via reset_tx_queue (qcu.c) */ + ath5k_hw_reg_write(ah, int_mask, AR5K_PIMR); + ath5k_hw_reg_write(ah, simr2, AR5K_SIMR2); + + } else { + if (new_mask & AR5K_INT_FATAL) + int_mask |= (AR5K_IMR_SSERR | AR5K_IMR_MCABT + | AR5K_IMR_HIUERR | AR5K_IMR_DPERR); + + ath5k_hw_reg_write(ah, int_mask, AR5K_IMR); } - ath5k_hw_reg_write(ah, int_mask, AR5K_PIMR); + /* If RXNOFRM interrupt is masked disable it + * by setting AR5K_RXNOFRM to zero */ + if (!(new_mask & AR5K_INT_RXNOFRM)) + ath5k_hw_reg_write(ah, 0, AR5K_RXNOFRM); /* Store new interrupt mask */ ah->ah_imr = new_mask; - /* ..re-enable interrupts */ - ath5k_hw_reg_write(ah, AR5K_IER_ENABLE, AR5K_IER); - ath5k_hw_reg_read(ah, AR5K_IER); + /* ..re-enable interrupts if AR5K_INT_GLOBAL is set */ + if (new_mask & AR5K_INT_GLOBAL) { + ath5k_hw_reg_write(ah, AR5K_IER_ENABLE, AR5K_IER); + ath5k_hw_reg_read(ah, AR5K_IER); + } return old_mask; } diff --git a/drivers/net/wireless/ath5k/qcu.c b/drivers/net/wireless/ath5k/qcu.c index 01bf09176d23..1b7bc50ea8eb 100644 --- a/drivers/net/wireless/ath5k/qcu.c +++ b/drivers/net/wireless/ath5k/qcu.c @@ -432,13 +432,30 @@ int ath5k_hw_reset_tx_queue(struct ath5k_hw *ah, unsigned int queue) if (tq->tqi_flags & AR5K_TXQ_FLAG_TXEOLINT_ENABLE) AR5K_Q_ENABLE_BITS(ah->ah_txq_imr_txeol, queue); + if (tq->tqi_flags & AR5K_TXQ_FLAG_CBRORNINT_ENABLE) + AR5K_Q_ENABLE_BITS(ah->ah_txq_imr_cbrorn, queue); + + if (tq->tqi_flags & AR5K_TXQ_FLAG_CBRURNINT_ENABLE) + AR5K_Q_ENABLE_BITS(ah->ah_txq_imr_cbrurn, queue); + + if (tq->tqi_flags & AR5K_TXQ_FLAG_QTRIGINT_ENABLE) + AR5K_Q_ENABLE_BITS(ah->ah_txq_imr_qtrig, queue); + + if (tq->tqi_flags & AR5K_TXQ_FLAG_TXNOFRMINT_ENABLE) + AR5K_Q_ENABLE_BITS(ah->ah_txq_imr_nofrm, queue); /* Update secondary interrupt mask registers */ + + /* Filter out inactive queues */ ah->ah_txq_imr_txok &= ah->ah_txq_status; ah->ah_txq_imr_txerr &= ah->ah_txq_status; ah->ah_txq_imr_txurn &= ah->ah_txq_status; ah->ah_txq_imr_txdesc &= ah->ah_txq_status; ah->ah_txq_imr_txeol &= ah->ah_txq_status; + ah->ah_txq_imr_cbrorn &= ah->ah_txq_status; + ah->ah_txq_imr_cbrurn &= ah->ah_txq_status; + ah->ah_txq_imr_qtrig &= ah->ah_txq_status; + ah->ah_txq_imr_nofrm &= ah->ah_txq_status; ath5k_hw_reg_write(ah, AR5K_REG_SM(ah->ah_txq_imr_txok, AR5K_SIMR0_QCU_TXOK) | @@ -448,8 +465,24 @@ int ath5k_hw_reset_tx_queue(struct ath5k_hw *ah, unsigned int queue) AR5K_SIMR1_QCU_TXERR) | AR5K_REG_SM(ah->ah_txq_imr_txeol, AR5K_SIMR1_QCU_TXEOL), AR5K_SIMR1); - ath5k_hw_reg_write(ah, AR5K_REG_SM(ah->ah_txq_imr_txurn, - AR5K_SIMR2_QCU_TXURN), AR5K_SIMR2); + /* Update simr2 but don't overwrite rest simr2 settings */ + AR5K_REG_DISABLE_BITS(ah, AR5K_SIMR2, AR5K_SIMR2_QCU_TXURN); + AR5K_REG_ENABLE_BITS(ah, AR5K_SIMR2, + AR5K_REG_SM(ah->ah_txq_imr_txurn, + AR5K_SIMR2_QCU_TXURN)); + ath5k_hw_reg_write(ah, AR5K_REG_SM(ah->ah_txq_imr_cbrorn, + AR5K_SIMR3_QCBRORN) | + AR5K_REG_SM(ah->ah_txq_imr_cbrurn, + AR5K_SIMR3_QCBRURN), AR5K_SIMR3); + ath5k_hw_reg_write(ah, AR5K_REG_SM(ah->ah_txq_imr_qtrig, + AR5K_SIMR4_QTRIG), AR5K_SIMR4); + /* Set TXNOFRM_QCU for the queues with TXNOFRM enabled */ + ath5k_hw_reg_write(ah, AR5K_REG_SM(ah->ah_txq_imr_nofrm, + AR5K_TXNOFRM_QCU), AR5K_TXNOFRM); + /* No queue has TXNOFRM enabled, disable the interrupt + * by setting AR5K_TXNOFRM to zero */ + if (ah->ah_txq_imr_nofrm == 0) + ath5k_hw_reg_write(ah, 0, AR5K_TXNOFRM); } return 0; diff --git a/drivers/net/wireless/ath5k/reg.h b/drivers/net/wireless/ath5k/reg.h index e557fe178bbf..0dae54d00f03 100644 --- a/drivers/net/wireless/ath5k/reg.h +++ b/drivers/net/wireless/ath5k/reg.h @@ -234,6 +234,7 @@ #define AR5K_TXNOFRM 0x004c #define AR5K_TXNOFRM_M 0x000003ff #define AR5K_TXNOFRM_QCU 0x000ffc00 +#define AR5K_TXNOFRM_QCU_S 10 /* * Receive frame gap timeout register @@ -350,7 +351,7 @@ #define AR5K_SISR3 0x0090 /* Register Address [5211+] */ #define AR5K_SISR3_QCBRORN 0x000003ff /* Mask for QCBRORN */ -#define AR5K_SISR3_QCBORN_S 0 +#define AR5K_SISR3_QCBRORN_S 0 #define AR5K_SISR3_QCBRURN 0x03ff0000 /* Mask for QCBRURN */ #define AR5K_SISR3_QCBRURN_S 16 diff --git a/drivers/net/wireless/ath5k/reset.c b/drivers/net/wireless/ath5k/reset.c index 1b6d45b6772d..b51bc030da02 100644 --- a/drivers/net/wireless/ath5k/reset.c +++ b/drivers/net/wireless/ath5k/reset.c @@ -864,8 +864,7 @@ int ath5k_hw_reset(struct ath5k_hw *ah, enum nl80211_iftype op_mode, /* Pre-enable interrupts on 5211/5212*/ if (ah->ah_version != AR5K_AR5210) - ath5k_hw_set_imr(ah, AR5K_INT_RX | AR5K_INT_TX | - AR5K_INT_FATAL); + ath5k_hw_set_imr(ah, ah->ah_imr); /* * Set RF kill flags if supported by the device (read from the EEPROM) -- cgit v1.2.3 From 9ad9a26e7b7b6671a9aefbb1edb2e8a9ed50ee8d Mon Sep 17 00:00:00 2001 From: Bob Copeland Date: Wed, 29 Oct 2008 08:30:54 -0400 Subject: ath5k: enable hardware encryption for WEP This change re-enables hardware encryption for ath5k after setting up mac80211 to handle the initialization vectors which happens to make it work. Add a module param (nohwcrypt) to optionally turn it off. Signed-off-by: Bob Copeland Signed-off-by: John W. Linville --- drivers/net/wireless/ath5k/base.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) (limited to 'drivers/net/wireless/ath5k/base.c') diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c index 6f368e8cdf17..4bf3678529b8 100644 --- a/drivers/net/wireless/ath5k/base.c +++ b/drivers/net/wireless/ath5k/base.c @@ -60,6 +60,9 @@ #include "debug.h" static int ath5k_calinterval = 10; /* Calibrate PHY every 10 secs (TODO: Fixme) */ +static int modparam_nohwcrypt; +module_param_named(nohwcrypt, modparam_nohwcrypt, int, 0444); +MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption."); /******************\ @@ -2975,11 +2978,12 @@ ath5k_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, struct ath5k_softc *sc = hw->priv; int ret = 0; + if (modparam_nohwcrypt) + return -EOPNOTSUPP; + switch (key->alg) { case ALG_WEP: - /* XXX: fix hardware encryption, its not working. For now - * allow software encryption */ - /* break; */ + break; case ALG_TKIP: case ALG_CCMP: return -EOPNOTSUPP; @@ -2999,6 +3003,7 @@ ath5k_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, } __set_bit(key->keyidx, sc->keymap); key->hw_key_idx = key->keyidx; + key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; break; case DISABLE_KEY: ath5k_hw_reset_key(sc->ah, key->keyidx); -- cgit v1.2.3 From 3f64b435ab76e79bfb3b4d36f043e6f892093b71 Mon Sep 17 00:00:00 2001 From: Bob Copeland Date: Wed, 29 Oct 2008 23:19:14 -0400 Subject: ath5k: update keycache to support TKIP handling Newer parts have slots at entry+64 for michael mic and can do WPA-TKIP in hardware. The open-sourced Atheros HAL has code for accessing this portion so now we know how where to put the key material. Signed-off-by: Bob Copeland Acked-by: Nick Kossifidis Signed-off-by: John W. Linville --- drivers/net/wireless/ath5k/base.c | 5 +-- drivers/net/wireless/ath5k/pcu.c | 64 ++++++++++++++++++++++++++++++++++++--- 2 files changed, 62 insertions(+), 7 deletions(-) (limited to 'drivers/net/wireless/ath5k/base.c') diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c index 4bf3678529b8..c7ffcbb9062d 100644 --- a/drivers/net/wireless/ath5k/base.c +++ b/drivers/net/wireless/ath5k/base.c @@ -2983,8 +2983,8 @@ ath5k_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, switch (key->alg) { case ALG_WEP: - break; case ALG_TKIP: + break; case ALG_CCMP: return -EOPNOTSUPP; default: @@ -3003,7 +3003,8 @@ ath5k_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, } __set_bit(key->keyidx, sc->keymap); key->hw_key_idx = key->keyidx; - key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; + key->flags |= (IEEE80211_KEY_FLAG_GENERATE_IV | + IEEE80211_KEY_FLAG_GENERATE_MMIC); break; case DISABLE_KEY: ath5k_hw_reset_key(sc->ah, key->keyidx); diff --git a/drivers/net/wireless/ath5k/pcu.c b/drivers/net/wireless/ath5k/pcu.c index 9c6698520edc..d7f0c1017bda 100644 --- a/drivers/net/wireless/ath5k/pcu.c +++ b/drivers/net/wireless/ath5k/pcu.c @@ -1021,17 +1021,29 @@ int ath5k_hw_set_key(struct ath5k_hw *ah, u16 entry, const struct ieee80211_key_conf *key, const u8 *mac) { unsigned int i; + int keylen; __le32 key_v[5] = {}; + __le32 key0 = 0, key1 = 0; + __le32 *rxmic, *txmic; u32 keytype; + u16 micentry = entry + AR5K_KEYTABLE_MIC_OFFSET; + bool is_tkip; ATH5K_TRACE(ah->ah_sc); - /* key->keylen comes in from mac80211 in bytes */ + is_tkip = (key->alg == ALG_TKIP); + + /* + * key->keylen comes in from mac80211 in bytes. + * TKIP is 128 bit + 128 bit mic + */ + keylen = (is_tkip) ? (128 / 8) : key->keylen; - if (key->keylen > AR5K_KEYTABLE_SIZE / 8) + if (entry > AR5K_KEYTABLE_SIZE || + (is_tkip && micentry > AR5K_KEYTABLE_SIZE)) return -EOPNOTSUPP; - switch (key->keylen) { + switch (keylen) { /* WEP 40-bit = 40-bit entered key + 24 bit IV = 64-bit */ case 40 / 8: memcpy(&key_v[0], key->key, 5); @@ -1045,24 +1057,66 @@ int ath5k_hw_set_key(struct ath5k_hw *ah, u16 entry, memcpy(&key_v[4], &key->key[12], 1); keytype = AR5K_KEYTABLE_TYPE_104; break; - /* WEP 128-bit = 128-bit entered key + 24 bit IV = 152-bit */ + /* WEP/TKIP 128-bit = 128-bit entered key + 24 bit IV = 152-bit */ case 128 / 8: memcpy(&key_v[0], &key->key[0], 6); memcpy(&key_v[2], &key->key[6], 6); memcpy(&key_v[4], &key->key[12], 4); - keytype = AR5K_KEYTABLE_TYPE_128; + keytype = is_tkip ? + AR5K_KEYTABLE_TYPE_TKIP : + AR5K_KEYTABLE_TYPE_128; break; default: return -EINVAL; /* shouldn't happen */ } + /* intentionally corrupt key until mic is installed */ + if (is_tkip) { + key0 = key_v[0] = ~key_v[0]; + key1 = key_v[1] = ~key_v[1]; + } + for (i = 0; i < ARRAY_SIZE(key_v); i++) ath5k_hw_reg_write(ah, le32_to_cpu(key_v[i]), AR5K_KEYTABLE_OFF(entry, i)); ath5k_hw_reg_write(ah, keytype, AR5K_KEYTABLE_TYPE(entry)); + if (is_tkip) { + /* Install rx/tx MIC */ + rxmic = (__le32 *) &key->key[16]; + txmic = (__le32 *) &key->key[24]; +#if 0 + /* MISC_MODE register & 0x04 - for mac srev >= griffin */ + key_v[0] = rxmic[0]; + key_v[1] = (txmic[0] >> 16) & 0xffff; + key_v[2] = rxmic[1]; + key_v[3] = txmic[0] & 0xffff; + key_v[4] = txmic[1]; +#else + key_v[0] = rxmic[0]; + key_v[1] = 0; + key_v[2] = rxmic[1]; + key_v[3] = 0; + key_v[4] = 0; +#endif + for (i = 0; i < ARRAY_SIZE(key_v); i++) + ath5k_hw_reg_write(ah, le32_to_cpu(key_v[i]), + AR5K_KEYTABLE_OFF(micentry, i)); + + ath5k_hw_reg_write(ah, AR5K_KEYTABLE_TYPE_NULL, + AR5K_KEYTABLE_TYPE(micentry)); + ath5k_hw_reg_write(ah, 0, AR5K_KEYTABLE_MAC0(micentry)); + ath5k_hw_reg_write(ah, 0, AR5K_KEYTABLE_MAC1(micentry)); + + /* restore first 2 words of key */ + ath5k_hw_reg_write(ah, le32_to_cpu(~key0), + AR5K_KEYTABLE_OFF(entry, 0)); + ath5k_hw_reg_write(ah, le32_to_cpu(~key1), + AR5K_KEYTABLE_OFF(entry, 1)); + } + return ath5k_hw_set_key_lladdr(ah, entry, mac); } -- cgit v1.2.3 From 6a53a8a99cb044e1873648ba184440db6d9c65b8 Mon Sep 17 00:00:00 2001 From: Nick Kossifidis Date: Tue, 4 Nov 2008 00:25:54 +0200 Subject: ath5k: Fix IMR init *On a previous patch i splitted AR5K_INT_TX to multiple different TX interrupt flags for better handling but i forgot to unmask the new TXDESC and TXEOL interrupts on ath5k_init and only left TXOK. However for each queue we enable TXDESC and TXEOL interrupts, not TXOK so we don't handle TX interrupts at all (because these interrupts remain masked on PISR) and under load it results packet loss. Fix the problem by unmasking TXDESC and TXEOL on ath5k_init. Signed-Off-by: Nick Kossifidis Signed-off-by: John W. Linville --- drivers/net/wireless/ath5k/base.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/net/wireless/ath5k/base.c') diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c index c7ffcbb9062d..1ed152f2dec3 100644 --- a/drivers/net/wireless/ath5k/base.c +++ b/drivers/net/wireless/ath5k/base.c @@ -2219,9 +2219,9 @@ ath5k_init(struct ath5k_softc *sc, bool is_resume) */ sc->curchan = sc->hw->conf.channel; sc->curband = &sc->sbands[sc->curchan->band]; - sc->imask = AR5K_INT_RXOK | AR5K_INT_TXOK | AR5K_INT_RXEOL | - AR5K_INT_RXORN | AR5K_INT_FATAL | AR5K_INT_GLOBAL | - AR5K_INT_MIB; + sc->imask = AR5K_INT_RXOK | AR5K_INT_RXERR | AR5K_INT_RXEOL | + AR5K_INT_RXORN | AR5K_INT_TXDESC | AR5K_INT_TXEOL | + AR5K_INT_FATAL | AR5K_INT_GLOBAL | AR5K_INT_MIB; ret = ath5k_reset(sc, false, false); if (ret) goto done; -- cgit v1.2.3 From 296bf2aefdf7b4b1bf093a7b42a86ee21b46d07f Mon Sep 17 00:00:00 2001 From: "Luis R. Rodriguez" Date: Mon, 3 Nov 2008 14:43:00 -0800 Subject: ath5k: allow APs to receive beacons Allow APs to receive beacons to detect when it needs to use protection to update the NAV correctly on 11b stations. Signed-off-by: Luis R. Rodriguez Signed-off-by: John W. Linville --- drivers/net/wireless/ath5k/base.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/net/wireless/ath5k/base.c') diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c index 1ed152f2dec3..34cd1a4a297f 100644 --- a/drivers/net/wireless/ath5k/base.c +++ b/drivers/net/wireless/ath5k/base.c @@ -2953,9 +2953,9 @@ static void ath5k_configure_filter(struct ieee80211_hw *hw, test_bit(ATH_STAT_PROMISC, sc->status)) rfilt |= AR5K_RX_FILTER_PROM; if (sc->opmode == NL80211_IFTYPE_STATION || - sc->opmode == NL80211_IFTYPE_ADHOC) { + sc->opmode == NL80211_IFTYPE_ADHOC || + sc->opmode == NL80211_IFTYPE_AP) rfilt |= AR5K_RX_FILTER_BEACON; - } if (sc->opmode == NL80211_IFTYPE_MESH_POINT) rfilt |= AR5K_RX_FILTER_CONTROL | AR5K_RX_FILTER_BEACON | AR5K_RX_FILTER_PROBEREQ | AR5K_RX_FILTER_PROM; -- cgit v1.2.3 From 9764f3f9c3700620f9f8a1f9af57f58758e835da Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Mon, 10 Nov 2008 18:56:59 +0100 Subject: ath5k: name pci driver "ath5k" too Call the ath5k pci driver struct "ath5k" too to be less confusing in sysfs. Signed-off-by: Johannes Berg Acked-by: Nick Kossifidis Signed-off-by: John W. Linville --- drivers/net/wireless/ath5k/base.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/net/wireless/ath5k/base.c') diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c index 34cd1a4a297f..7fdb59c813ca 100644 --- a/drivers/net/wireless/ath5k/base.c +++ b/drivers/net/wireless/ath5k/base.c @@ -200,7 +200,7 @@ static int ath5k_pci_resume(struct pci_dev *pdev); #endif /* CONFIG_PM */ static struct pci_driver ath5k_pci_driver = { - .name = "ath5k_pci", + .name = KBUILD_MODNAME, .id_table = ath5k_pci_id_table, .probe = ath5k_pci_probe, .remove = __devexit_p(ath5k_pci_remove), -- cgit v1.2.3 From 0e149cf5a1b1900484f4b808d59a5f246cd720be Mon Sep 17 00:00:00 2001 From: Bob Copeland Date: Mon, 17 Nov 2008 23:40:38 -0500 Subject: ath5k: set mac address in add_interface Configure the mac address in add_interface and clear it in remove_interface so that users can change the mac address to something other than the one in the eeprom. Also avoid setting it at attach time so that we won't ack packets until fully set up. Signed-off-by: Bob Copeland Signed-off-by: John W. Linville --- drivers/net/wireless/ath5k/attach.c | 12 +++--------- drivers/net/wireless/ath5k/base.c | 13 +++++++++++-- 2 files changed, 14 insertions(+), 11 deletions(-) (limited to 'drivers/net/wireless/ath5k/base.c') diff --git a/drivers/net/wireless/ath5k/attach.c b/drivers/net/wireless/ath5k/attach.c index 51d569883cdd..49d82d79d3fc 100644 --- a/drivers/net/wireless/ath5k/attach.c +++ b/drivers/net/wireless/ath5k/attach.c @@ -106,7 +106,7 @@ struct ath5k_hw *ath5k_hw_attach(struct ath5k_softc *sc, u8 mac_version) { struct ath5k_hw *ah; struct pci_dev *pdev = sc->pdev; - u8 mac[ETH_ALEN]; + u8 mac[ETH_ALEN] = {}; int ret; u32 srev; @@ -317,15 +317,9 @@ struct ath5k_hw *ath5k_hw_attach(struct ath5k_softc *sc, u8 mac_version) goto err_free; } - /* Set MAC address */ - ret = ath5k_eeprom_read_mac(ah, mac); - if (ret) { - ATH5K_ERR(sc, "unable to read address from EEPROM: 0x%04x\n", - sc->pdev->device); - goto err_free; - } - + /* MAC address is cleared until add_interface */ ath5k_hw_set_lladdr(ah, mac); + /* Set BSSID to bcast address: ff:ff:ff:ff:ff:ff for now */ memset(ah->ah_bssid, 0xff, ETH_ALEN); ath5k_hw_set_associd(ah, ah->ah_bssid, 0); diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c index 7fdb59c813ca..4bcea5a9d70b 100644 --- a/drivers/net/wireless/ath5k/base.c +++ b/drivers/net/wireless/ath5k/base.c @@ -707,7 +707,7 @@ ath5k_attach(struct pci_dev *pdev, struct ieee80211_hw *hw) { struct ath5k_softc *sc = hw->priv; struct ath5k_hw *ah = sc->ah; - u8 mac[ETH_ALEN]; + u8 mac[ETH_ALEN] = {}; int ret; ATH5K_DBG(sc, ATH5K_DEBUG_ANY, "devid 0x%x\n", pdev->device); @@ -777,7 +777,13 @@ ath5k_attach(struct pci_dev *pdev, struct ieee80211_hw *hw) tasklet_init(&sc->restq, ath5k_tasklet_reset, (unsigned long)sc); setup_timer(&sc->calib_tim, ath5k_calibrate, (unsigned long)sc); - ath5k_hw_get_lladdr(ah, mac); + ret = ath5k_eeprom_read_mac(ah, mac); + if (ret) { + ATH5K_ERR(sc, "unable to read address from EEPROM: 0x%04x\n", + sc->pdev->device); + goto err_queues; + } + SET_IEEE80211_PERM_ADDR(hw, mac); /* All MAC address bits matter for ACKs */ memset(sc->bssidmask, 0xff, ETH_ALEN); @@ -2765,6 +2771,7 @@ static int ath5k_add_interface(struct ieee80211_hw *hw, /* Set to a reasonable value. Note that this will * be set to mac80211's value at ath5k_config(). */ sc->bintval = 1000; + ath5k_hw_set_lladdr(sc->ah, conf->mac_addr); ret = 0; end: @@ -2777,11 +2784,13 @@ ath5k_remove_interface(struct ieee80211_hw *hw, struct ieee80211_if_init_conf *conf) { struct ath5k_softc *sc = hw->priv; + u8 mac[ETH_ALEN] = {}; mutex_lock(&sc->lock); if (sc->vif != conf->vif) goto end; + ath5k_hw_set_lladdr(sc->ah, mac); sc->vif = NULL; end: mutex_unlock(&sc->lock); -- cgit v1.2.3 From 0fe45b1debba7302155b62f3829119a1185a4f5a Mon Sep 17 00:00:00 2001 From: Benoit PAPILLAULT Date: Fri, 12 Dec 2008 15:29:58 +0100 Subject: ath5k: fix 802.11 header padding on RX, unpadding on TX Padding the 802.11 header to a multiple of 4 bytes needs to be done only for frames with a body. This fixes a bug where 2 bytes were missing in monitor mode for ACK frames. Inspired by a patch from Jouni Malinen on ath9k. Ref: http://bugzilla.kernel.org/show_bug.cgi?id=12101 : Signed-off-by: Benoit Papillault Signed-off-by: John W. Linville --- drivers/net/wireless/ath5k/base.c | 38 +++++++++++++++++++++----------------- 1 file changed, 21 insertions(+), 17 deletions(-) (limited to 'drivers/net/wireless/ath5k/base.c') diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c index 0e4317010ed0..9b5f31aab574 100644 --- a/drivers/net/wireless/ath5k/base.c +++ b/drivers/net/wireless/ath5k/base.c @@ -1668,7 +1668,7 @@ ath5k_tasklet_rx(unsigned long data) struct ath5k_desc *ds; int ret; int hdrlen; - int pad; + int padsize; spin_lock(&sc->rxbuflock); if (list_empty(&sc->rxbuf)) { @@ -1753,16 +1753,19 @@ accept: skb_put(skb, rs.rs_datalen); - /* - * the hardware adds a padding to 4 byte boundaries between - * the header and the payload data if the header length is - * not multiples of 4 - remove it - */ + /* The MAC header is padded to have 32-bit boundary if the + * packet payload is non-zero. The general calculation for + * padsize would take into account odd header lengths: + * padsize = (4 - hdrlen % 4) % 4; However, since only + * even-length headers are used, padding can only be 0 or 2 + * bytes and we can optimize this a bit. In addition, we must + * not try to remove padding from short control frames that do + * not have payload. */ hdrlen = ieee80211_get_hdrlen_from_skb(skb); - if (hdrlen & 3) { - pad = hdrlen % 4; - memmove(skb->data + pad, skb->data, hdrlen); - skb_pull(skb, pad); + padsize = hdrlen & 3; + if (padsize && hdrlen >= 24) { + memmove(skb->data + padsize, skb->data, hdrlen); + skb_pull(skb, padsize); } /* @@ -2623,7 +2626,7 @@ ath5k_tx(struct ieee80211_hw *hw, struct sk_buff *skb) struct ath5k_buf *bf; unsigned long flags; int hdrlen; - int pad; + int padsize; ath5k_debug_dump_skb(sc, skb, "TX ", 1); @@ -2635,15 +2638,16 @@ ath5k_tx(struct ieee80211_hw *hw, struct sk_buff *skb) * if this is not the case we add the padding after the header */ hdrlen = ieee80211_get_hdrlen_from_skb(skb); - if (hdrlen & 3) { - pad = hdrlen % 4; - if (skb_headroom(skb) < pad) { + padsize = hdrlen & 3; + if (padsize && hdrlen >= 24) { + + if (skb_headroom(skb) < padsize) { ATH5K_ERR(sc, "tx hdrlen not %%4: %d not enough" - " headroom to pad %d\n", hdrlen, pad); + " headroom to pad %d\n", hdrlen, padsize); return -1; } - skb_push(skb, pad); - memmove(skb->data, skb->data+pad, hdrlen); + skb_push(skb, padsize); + memmove(skb->data, skb->data+padsize, hdrlen); } spin_lock_irqsave(&sc->txbuflock, flags); -- cgit v1.2.3 From fd6effcaf8a894c0a0f602b943dbc54a170d4418 Mon Sep 17 00:00:00 2001 From: Bob Copeland Date: Thu, 18 Dec 2008 23:23:05 -0500 Subject: ath5k: correct packet length in tx descriptors Packet length calculation (which includes frame check sequence) should take into account whether we add a pad field or not. Extract the calculation into a helper and use it in both places. Changes to desc.c Changes-licensed-under: ISC Changes to ath5k.h, base.c Changes-licensed-under: 3-Clause-BSD Signed-off-by: Bob Copeland Signed-off-by: John W. Linville --- drivers/net/wireless/ath5k/ath5k.h | 5 +++++ drivers/net/wireless/ath5k/base.c | 8 ++++---- drivers/net/wireless/ath5k/desc.c | 4 ++-- 3 files changed, 11 insertions(+), 6 deletions(-) (limited to 'drivers/net/wireless/ath5k/base.c') diff --git a/drivers/net/wireless/ath5k/ath5k.h b/drivers/net/wireless/ath5k/ath5k.h index 13df1191b070..183ffc8e62ca 100644 --- a/drivers/net/wireless/ath5k/ath5k.h +++ b/drivers/net/wireless/ath5k/ath5k.h @@ -1350,4 +1350,9 @@ static inline u32 ath5k_hw_bitswap(u32 val, unsigned int bits) return retval; } +static inline int ath5k_pad_size(int hdrlen) +{ + return (hdrlen < 24) ? 0 : hdrlen & 3; +} + #endif diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c index 9b5f31aab574..4af2607deec0 100644 --- a/drivers/net/wireless/ath5k/base.c +++ b/drivers/net/wireless/ath5k/base.c @@ -1762,8 +1762,8 @@ accept: * not try to remove padding from short control frames that do * not have payload. */ hdrlen = ieee80211_get_hdrlen_from_skb(skb); - padsize = hdrlen & 3; - if (padsize && hdrlen >= 24) { + padsize = ath5k_pad_size(hdrlen); + if (padsize) { memmove(skb->data + padsize, skb->data, hdrlen); skb_pull(skb, padsize); } @@ -2638,8 +2638,8 @@ ath5k_tx(struct ieee80211_hw *hw, struct sk_buff *skb) * if this is not the case we add the padding after the header */ hdrlen = ieee80211_get_hdrlen_from_skb(skb); - padsize = hdrlen & 3; - if (padsize && hdrlen >= 24) { + padsize = ath5k_pad_size(hdrlen); + if (padsize) { if (skb_headroom(skb) < padsize) { ATH5K_ERR(sc, "tx hdrlen not %%4: %d not enough" diff --git a/drivers/net/wireless/ath5k/desc.c b/drivers/net/wireless/ath5k/desc.c index 5e362a7a3620..b40a9287a39a 100644 --- a/drivers/net/wireless/ath5k/desc.c +++ b/drivers/net/wireless/ath5k/desc.c @@ -71,7 +71,7 @@ ath5k_hw_setup_2word_tx_desc(struct ath5k_hw *ah, struct ath5k_desc *desc, /* Verify and set frame length */ /* remove padding we might have added before */ - frame_len = pkt_len - (hdr_len & 3) + FCS_LEN; + frame_len = pkt_len - ath5k_pad_size(hdr_len) + FCS_LEN; if (frame_len & ~AR5K_2W_TX_DESC_CTL0_FRAME_LEN) return -EINVAL; @@ -202,7 +202,7 @@ static int ath5k_hw_setup_4word_tx_desc(struct ath5k_hw *ah, /* Verify and set frame length */ /* remove padding we might have added before */ - frame_len = pkt_len - (hdr_len & 3) + FCS_LEN; + frame_len = pkt_len - ath5k_pad_size(hdr_len) + FCS_LEN; if (frame_len & ~AR5K_4W_TX_DESC_CTL0_FRAME_LEN) return -EINVAL; -- cgit v1.2.3