diff options
79 files changed, 1458 insertions, 1088 deletions
diff --git a/Documentation/DocBook/mac80211.tmpl b/Documentation/DocBook/mac80211.tmpl index 971d1c0c83e5..affb15a344a1 100644 --- a/Documentation/DocBook/mac80211.tmpl +++ b/Documentation/DocBook/mac80211.tmpl @@ -234,7 +234,6 @@ usage should require reading the full document. <title>Multiple queues and QoS support</title> <para>TBD</para> !Finclude/net/mac80211.h ieee80211_tx_queue_params -!Finclude/net/mac80211.h ieee80211_tx_queue_stats </chapter> <chapter id="AP"> diff --git a/drivers/net/wireless/adm8211.c b/drivers/net/wireless/adm8211.c index e6ca3eb4c0d3..547912e6843f 100644 --- a/drivers/net/wireless/adm8211.c +++ b/drivers/net/wireless/adm8211.c @@ -302,18 +302,6 @@ static int adm8211_get_stats(struct ieee80211_hw *dev, return 0; } -static int adm8211_get_tx_stats(struct ieee80211_hw *dev, - struct ieee80211_tx_queue_stats *stats) -{ - struct adm8211_priv *priv = dev->priv; - - stats[0].len = priv->cur_tx - priv->dirty_tx; - stats[0].limit = priv->tx_ring_size - 2; - stats[0].count = priv->dirty_tx; - - return 0; -} - static void adm8211_interrupt_tci(struct ieee80211_hw *dev) { struct adm8211_priv *priv = dev->priv; @@ -1773,7 +1761,6 @@ static const struct ieee80211_ops adm8211_ops = { .prepare_multicast = adm8211_prepare_multicast, .configure_filter = adm8211_configure_filter, .get_stats = adm8211_get_stats, - .get_tx_stats = adm8211_get_tx_stats, .get_tsf = adm8211_get_tsft }; diff --git a/drivers/net/wireless/ath/ar9170/ar9170.h b/drivers/net/wireless/ath/ar9170/ar9170.h index b99a8c2053d8..8c8ce67971e9 100644 --- a/drivers/net/wireless/ath/ar9170/ar9170.h +++ b/drivers/net/wireless/ath/ar9170/ar9170.h @@ -144,6 +144,12 @@ struct ar9170_sta_tid { bool active; }; +struct ar9170_tx_queue_stats { + unsigned int len; + unsigned int limit; + unsigned int count; +}; + #define AR9170_QUEUE_TIMEOUT 64 #define AR9170_TX_TIMEOUT 8 #define AR9170_BA_TIMEOUT 4 @@ -211,7 +217,7 @@ struct ar9170 { /* qos queue settings */ spinlock_t tx_stats_lock; - struct ieee80211_tx_queue_stats tx_stats[5]; + struct ar9170_tx_queue_stats tx_stats[5]; struct ieee80211_tx_queue_params edcf[5]; spinlock_t cmdlock; diff --git a/drivers/net/wireless/ath/ar9170/main.c b/drivers/net/wireless/ath/ar9170/main.c index 4d27f7f67c76..91797cb6e0e8 100644 --- a/drivers/net/wireless/ath/ar9170/main.c +++ b/drivers/net/wireless/ath/ar9170/main.c @@ -2396,18 +2396,6 @@ static int ar9170_get_stats(struct ieee80211_hw *hw, return 0; } -static int ar9170_get_tx_stats(struct ieee80211_hw *hw, - struct ieee80211_tx_queue_stats *tx_stats) -{ - struct ar9170 *ar = hw->priv; - - spin_lock_bh(&ar->tx_stats_lock); - memcpy(tx_stats, ar->tx_stats, sizeof(tx_stats[0]) * hw->queues); - spin_unlock_bh(&ar->tx_stats_lock); - - return 0; -} - static int ar9170_conf_tx(struct ieee80211_hw *hw, u16 queue, const struct ieee80211_tx_queue_params *param) { @@ -2509,7 +2497,6 @@ static const struct ieee80211_ops ar9170_ops = { .set_key = ar9170_set_key, .sta_notify = ar9170_sta_notify, .get_stats = ar9170_get_stats, - .get_tx_stats = ar9170_get_tx_stats, .ampdu_action = ar9170_ampdu_action, }; diff --git a/drivers/net/wireless/ath/ath5k/ath5k.h b/drivers/net/wireless/ath/ath5k/ath5k.h index ad4d446f0264..ac67f02e26d8 100644 --- a/drivers/net/wireless/ath/ath5k/ath5k.h +++ b/drivers/net/wireless/ath/ath5k/ath5k.h @@ -541,7 +541,6 @@ struct ath5k_txq_info { /* * Transmit packet types. * used on tx control descriptor - * TODO: Use them inside base.c corectly */ enum ath5k_pkt_type { AR5K_PKT_TYPE_NORMAL = 0, diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c index edb6c90e376f..8dce0077b023 100644 --- a/drivers/net/wireless/ath/ath5k/base.c +++ b/drivers/net/wireless/ath/ath5k/base.c @@ -241,8 +241,6 @@ static int ath5k_set_key(struct ieee80211_hw *hw, struct ieee80211_key_conf *key); static int ath5k_get_stats(struct ieee80211_hw *hw, struct ieee80211_low_level_stats *stats); -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_set_tsf(struct ieee80211_hw *hw, u64 tsf); static void ath5k_reset_tsf(struct ieee80211_hw *hw); @@ -269,7 +267,6 @@ static const struct ieee80211_ops ath5k_hw_ops = { .set_key = ath5k_set_key, .get_stats = ath5k_get_stats, .conf_tx = NULL, - .get_tx_stats = ath5k_get_tx_stats, .get_tsf = ath5k_get_tsf, .set_tsf = ath5k_set_tsf, .reset_tsf = ath5k_reset_tsf, @@ -1249,6 +1246,29 @@ ath5k_rxbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf) return 0; } +static enum ath5k_pkt_type get_hw_packet_type(struct sk_buff *skb) +{ + struct ieee80211_hdr *hdr; + enum ath5k_pkt_type htype; + __le16 fc; + + hdr = (struct ieee80211_hdr *)skb->data; + fc = hdr->frame_control; + + if (ieee80211_is_beacon(fc)) + htype = AR5K_PKT_TYPE_BEACON; + else if (ieee80211_is_probe_resp(fc)) + htype = AR5K_PKT_TYPE_PROBE_RESP; + else if (ieee80211_is_atim(fc)) + htype = AR5K_PKT_TYPE_ATIM; + else if (ieee80211_is_pspoll(fc)) + htype = AR5K_PKT_TYPE_PSPOLL; + else + htype = AR5K_PKT_TYPE_NORMAL; + + return htype; +} + static int ath5k_txbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf, struct ath5k_txq *txq) @@ -1303,7 +1323,8 @@ ath5k_txbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf, sc->vif, pktlen, info)); } ret = ah->ah_setup_tx_desc(ah, ds, pktlen, - ieee80211_get_hdrlen_from_skb(skb), AR5K_PKT_TYPE_NORMAL, + ieee80211_get_hdrlen_from_skb(skb), + get_hw_packet_type(skb), (sc->power_level * 2), hw_rate, info->control.rates[0].count, keyidx, ah->ah_tx_ant, flags, @@ -1332,7 +1353,6 @@ ath5k_txbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf, spin_lock_bh(&txq->lock); list_add_tail(&bf->list, &txq->q); - sc->tx_stats[txq->qnum].len++; if (txq->link == NULL) /* is this first packet? */ ath5k_hw_set_txdp(ah, txq->qnum, bf->daddr); else /* no, so only link it */ @@ -1581,7 +1601,6 @@ ath5k_txq_drainq(struct ath5k_softc *sc, struct ath5k_txq *txq) ath5k_txbuf_free(sc, bf); spin_lock_bh(&sc->txbuflock); - sc->tx_stats[txq->qnum].len--; list_move_tail(&bf->list, &sc->txbuf); sc->txbuf_len++; spin_unlock_bh(&sc->txbuflock); @@ -2011,10 +2030,8 @@ ath5k_tx_processq(struct ath5k_softc *sc, struct ath5k_txq *txq) } ieee80211_tx_status(sc->hw, skb); - sc->tx_stats[txq->qnum].count++; spin_lock(&sc->txbuflock); - sc->tx_stats[txq->qnum].len--; list_move_tail(&bf->list, &sc->txbuf); sc->txbuf_len++; spin_unlock(&sc->txbuflock); @@ -3116,17 +3133,6 @@ ath5k_get_stats(struct ieee80211_hw *hw, return 0; } -static int -ath5k_get_tx_stats(struct ieee80211_hw *hw, - struct ieee80211_tx_queue_stats *stats) -{ - struct ath5k_softc *sc = hw->priv; - - memcpy(stats, &sc->tx_stats, sizeof(sc->tx_stats)); - - return 0; -} - static u64 ath5k_get_tsf(struct ieee80211_hw *hw) { diff --git a/drivers/net/wireless/ath/ath5k/base.h b/drivers/net/wireless/ath/ath5k/base.h index 952b3a21bbc3..7e1a88a5abdb 100644 --- a/drivers/net/wireless/ath/ath5k/base.h +++ b/drivers/net/wireless/ath/ath5k/base.h @@ -117,7 +117,6 @@ struct ath5k_softc { struct pci_dev *pdev; /* for dma mapping */ void __iomem *iobase; /* address of the device */ struct mutex lock; /* dev-level lock */ - struct ieee80211_tx_queue_stats tx_stats[AR5K_NUM_TX_QUEUES]; struct ieee80211_low_level_stats ll_stats; struct ieee80211_hw *hw; /* IEEE 802.11 common */ struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS]; diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index 0ea340fd071c..83c7ea4c007f 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -267,6 +267,7 @@ void ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid, u16 *ssn); void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid); void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid); +void ath9k_enable_ps(struct ath_softc *sc); /********/ /* VIFs */ diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c index 422454fe4ff0..d088ebfe63a6 100644 --- a/drivers/net/wireless/ath/ath9k/beacon.c +++ b/drivers/net/wireless/ath/ath9k/beacon.c @@ -577,6 +577,13 @@ static void ath_beacon_config_sta(struct ath_softc *sc, u64 tsf; int num_beacons, offset, dtim_dec_count, cfp_dec_count; + /* No need to configure beacon if we are not associated */ + if (!common->curaid) { + ath_print(common, ATH_DBG_BEACON, + "STA is not yet associated..skipping beacon config\n"); + return; + } + memset(&bs, 0, sizeof(bs)); intval = conf->beacon_interval & ATH9K_BEACON_PERIOD; @@ -739,7 +746,6 @@ void ath_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif) enum nl80211_iftype iftype; /* Setup the beacon configuration parameters */ - if (vif) { struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index f15fee76a4e2..f00f5c744f48 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -1217,6 +1217,17 @@ void ath9k_hw_init_global_settings(struct ath_hw *ah) /* As defined by IEEE 802.11-2007 17.3.8.6 */ slottime = ah->slottime + 3 * ah->coverage_class; acktimeout = slottime + sifstime; + + /* + * Workaround for early ACK timeouts, add an offset to match the + * initval's 64us ack timeout value. + * This was initially only meant to work around an issue with delayed + * BA frames in some implementations, but it has been found to fix ACK + * timeout issues in other cases as well. + */ + if (conf->channel && conf->channel->band == IEEE80211_BAND_2GHZ) + acktimeout += 64 - sifstime - ah->slottime; + ath9k_hw_setslottime(ah, slottime); ath9k_hw_set_ack_timeout(ah, acktimeout); ath9k_hw_set_cts_timeout(ah, acktimeout); diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c index 4b5e54848683..623c2f884987 100644 --- a/drivers/net/wireless/ath/ath9k/init.c +++ b/drivers/net/wireless/ath/ath9k/init.c @@ -622,7 +622,8 @@ void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw) IEEE80211_HW_SIGNAL_DBM | IEEE80211_HW_SUPPORTS_PS | IEEE80211_HW_PS_NULLFUNC_STACK | - IEEE80211_HW_SPECTRUM_MGMT; + IEEE80211_HW_SPECTRUM_MGMT | + IEEE80211_HW_REPORTS_TX_ACK_STATUS; if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) hw->flags |= IEEE80211_HW_AMPDU_AGGREGATION; diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 6796d5cdc293..9c8f925c2093 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -809,6 +809,7 @@ static void ath_key_delete(struct ath_common *common, struct ieee80211_key_conf clear_bit(key->hw_key_idx + 64, common->keymap); if (common->splitmic) { + ath9k_hw_keyreset(ah, key->hw_key_idx + 32); clear_bit(key->hw_key_idx + 32, common->keymap); clear_bit(key->hw_key_idx + 64 + 32, common->keymap); } @@ -1492,6 +1493,19 @@ static void ath9k_remove_interface(struct ieee80211_hw *hw, mutex_unlock(&sc->mutex); } +void ath9k_enable_ps(struct ath_softc *sc) +{ + sc->ps_enabled = true; + if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) { + if ((sc->imask & ATH9K_INT_TIM_TIMER) == 0) { + sc->imask |= ATH9K_INT_TIM_TIMER; + ath9k_hw_set_interrupts(sc->sc_ah, + sc->imask); + } + } + ath9k_hw_setrxabort(sc->sc_ah, 1); +} + static int ath9k_config(struct ieee80211_hw *hw, u32 changed) { struct ath_wiphy *aphy = hw->priv; @@ -1546,22 +1560,13 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed) if (changed & IEEE80211_CONF_CHANGE_PS) { if (conf->flags & IEEE80211_CONF_PS) { sc->ps_flags |= PS_ENABLED; - if (!(ah->caps.hw_caps & - ATH9K_HW_CAP_AUTOSLEEP)) { - if ((sc->imask & ATH9K_INT_TIM_TIMER) == 0) { - sc->imask |= ATH9K_INT_TIM_TIMER; - ath9k_hw_set_interrupts(sc->sc_ah, - sc->imask); - } - } /* * At this point we know hardware has received an ACK * of a previously sent null data frame. */ if ((sc->ps_flags & PS_NULLFUNC_COMPLETED)) { sc->ps_flags &= ~PS_NULLFUNC_COMPLETED; - sc->ps_enabled = true; - ath9k_hw_setrxabort(sc->sc_ah, 1); + ath9k_enable_ps(sc); } } else { sc->ps_enabled = false; diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index 3c790a4f38f7..f5cbbcb9a4aa 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -2048,10 +2048,9 @@ static void ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq) */ if (bf->bf_isnullfunc && (ds->ds_txstat.ts_status & ATH9K_TX_ACKED)) { - if ((sc->ps_flags & PS_ENABLED)) { - sc->ps_enabled = true; - ath9k_hw_setrxabort(sc->sc_ah, 1); - } else + if ((sc->ps_flags & PS_ENABLED)) + ath9k_enable_ps(sc); + else sc->ps_flags |= PS_NULLFUNC_COMPLETED; } diff --git a/drivers/net/wireless/ath/regd.c b/drivers/net/wireless/ath/regd.c index 039ac490465c..04abd1f556b7 100644 --- a/drivers/net/wireless/ath/regd.c +++ b/drivers/net/wireless/ath/regd.c @@ -110,8 +110,9 @@ static const struct ieee80211_regdomain ath_world_regdom_67_68_6A = { static inline bool is_wwr_sku(u16 regd) { - return ((regd & WORLD_SKU_MASK) == WORLD_SKU_PREFIX) || - (regd == WORLD); + return ((regd & COUNTRY_ERD_FLAG) != COUNTRY_ERD_FLAG) && + (((regd & WORLD_SKU_MASK) == WORLD_SKU_PREFIX) || + (regd == WORLD)); } static u16 ath_regd_get_eepromRD(struct ath_regulatory *reg) diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h index 54d6085a887b..6a6ab0f630e5 100644 --- a/drivers/net/wireless/b43/b43.h +++ b/drivers/net/wireless/b43/b43.h @@ -115,6 +115,7 @@ #define B43_MMIO_TSF_2 0x636 /* core rev < 3 only */ #define B43_MMIO_TSF_3 0x638 /* core rev < 3 only */ #define B43_MMIO_RNG 0x65A +#define B43_MMIO_IFSSLOT 0x684 /* Interframe slot time */ #define B43_MMIO_IFSCTL 0x688 /* Interframe space control */ #define B43_MMIO_IFSCTL_USE_EDCF 0x0004 #define B43_MMIO_POWERUP_DELAY 0x6A8 diff --git a/drivers/net/wireless/b43/dma.c b/drivers/net/wireless/b43/dma.c index 615af22c49fd..be7abf8916ad 100644 --- a/drivers/net/wireless/b43/dma.c +++ b/drivers/net/wireless/b43/dma.c @@ -1369,7 +1369,6 @@ int b43_dma_tx(struct b43_wldev *dev, struct sk_buff *skb) b43err(dev->wl, "DMA tx mapping failure\n"); goto out; } - ring->nr_tx_packets++; if ((free_slots(ring) < TX_SLOTS_PER_FRAME) || should_inject_overflow(ring)) { /* This TX ring is full. */ @@ -1500,22 +1499,6 @@ void b43_dma_handle_txstatus(struct b43_wldev *dev, } } -void b43_dma_get_tx_stats(struct b43_wldev *dev, - struct ieee80211_tx_queue_stats *stats) -{ - const int nr_queues = dev->wl->hw->queues; - struct b43_dmaring *ring; - int i; - - for (i = 0; i < nr_queues; i++) { - ring = select_ring_by_priority(dev, i); - - stats[i].len = ring->used_slots / TX_SLOTS_PER_FRAME; - stats[i].limit = ring->nr_slots / TX_SLOTS_PER_FRAME; - stats[i].count = ring->nr_tx_packets; - } -} - static void dma_rx(struct b43_dmaring *ring, int *slot) { const struct b43_dma_ops *ops = ring->ops; diff --git a/drivers/net/wireless/b43/dma.h b/drivers/net/wireless/b43/dma.h index f7ab37c4cdbc..dc91944d6022 100644 --- a/drivers/net/wireless/b43/dma.h +++ b/drivers/net/wireless/b43/dma.h @@ -228,8 +228,6 @@ struct b43_dmaring { int used_slots; /* Currently used slot in the ring. */ int current_slot; - /* Total number of packets sent. Statistics only. */ - unsigned int nr_tx_packets; /* Frameoffset in octets. */ u32 frameoffset; /* Descriptor buffer size. */ @@ -278,9 +276,6 @@ void b43_dma_free(struct b43_wldev *dev); void b43_dma_tx_suspend(struct b43_wldev *dev); void b43_dma_tx_resume(struct b43_wldev *dev); -void b43_dma_get_tx_stats(struct b43_wldev *dev, - struct ieee80211_tx_queue_stats *stats); - int b43_dma_tx(struct b43_wldev *dev, struct sk_buff *skb); void b43_dma_handle_txstatus(struct b43_wldev *dev, diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index 316a913860d7..aa33d741e5e6 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -637,10 +637,17 @@ static void b43_upload_card_macaddress(struct b43_wldev *dev) static void b43_set_slot_time(struct b43_wldev *dev, u16 slot_time) { /* slot_time is in usec. */ - if (dev->phy.type != B43_PHYTYPE_G) + /* This test used to exit for all but a G PHY. */ + if (b43_current_band(dev->wl) == IEEE80211_BAND_5GHZ) return; - b43_write16(dev, 0x684, 510 + slot_time); - b43_shm_write16(dev, B43_SHM_SHARED, 0x0010, slot_time); + b43_write16(dev, B43_MMIO_IFSSLOT, 510 + slot_time); + /* Shared memory location 0x0010 is the slot time and should be + * set to slot_time; however, this register is initially 0 and changing + * the value adversely affects the transmit rate for BCM4311 + * devices. Until this behavior is unterstood, delete this step + * + * b43_shm_write16(dev, B43_SHM_SHARED, 0x0010, slot_time); + */ } static void b43_short_slot_timing_enable(struct b43_wldev *dev) @@ -3349,27 +3356,6 @@ out_unlock: return err; } -static int b43_op_get_tx_stats(struct ieee80211_hw *hw, - struct ieee80211_tx_queue_stats *stats) -{ - struct b43_wl *wl = hw_to_b43_wl(hw); - struct b43_wldev *dev; - int err = -ENODEV; - - mutex_lock(&wl->mutex); - dev = wl->current_dev; - if (dev && b43_status(dev) >= B43_STAT_STARTED) { - if (b43_using_pio_transfers(dev)) - b43_pio_get_tx_stats(dev, stats); - else - b43_dma_get_tx_stats(dev, stats); - err = 0; - } - mutex_unlock(&wl->mutex); - - return err; -} - static int b43_op_get_stats(struct ieee80211_hw *hw, struct ieee80211_low_level_stats *stats) { @@ -3980,6 +3966,7 @@ static int b43_wireless_core_start(struct b43_wldev *dev) } /* We are ready to run. */ + ieee80211_wake_queues(dev->wl->hw); b43_set_status(dev, B43_STAT_STARTED); /* Start data flow (TX/RX). */ @@ -4389,8 +4376,6 @@ static int b43_wireless_core_init(struct b43_wldev *dev) ieee80211_wake_queues(dev->wl->hw); - ieee80211_wake_queues(dev->wl->hw); - b43_set_status(dev, B43_STAT_INITIALIZED); out: @@ -4596,7 +4581,6 @@ static const struct ieee80211_ops b43_hw_ops = { .set_key = b43_op_set_key, .update_tkip_key = b43_op_update_tkip_key, .get_stats = b43_op_get_stats, - .get_tx_stats = b43_op_get_tx_stats, .get_tsf = b43_op_get_tsf, .set_tsf = b43_op_set_tsf, .start = b43_op_start, diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c index 6392da25efed..795bb1e3345d 100644 --- a/drivers/net/wireless/b43/phy_n.c +++ b/drivers/net/wireless/b43/phy_n.c @@ -68,6 +68,10 @@ static void b43_nphy_set_rf_sequence(struct b43_wldev *dev, u8 cmd, u8 *events, u8 *delays, u8 length); static void b43_nphy_force_rf_sequence(struct b43_wldev *dev, enum b43_nphy_rf_sequence seq); +static void b43_nphy_rf_control_override(struct b43_wldev *dev, u16 field, + u16 value, u8 core, bool off); +static void b43_nphy_rf_control_intc_override(struct b43_wldev *dev, u8 field, + u16 value, u8 core); void b43_nphy_set_rxantenna(struct b43_wldev *dev, int antenna) {//TODO @@ -498,8 +502,8 @@ static void b43_nphy_rx_cal_phy_setup(struct b43_wldev *dev, u8 core) b43_phy_set(dev, B43_NPHY_AFECTL_OVER, 0x0007); } - /* TODO: Call N PHY RF Ctrl Intc Override with 2, 0, 3 as arguments */ - /* TODO: Call N PHY RF Intc Override with 8, 0, 3, 0 as arguments */ + b43_nphy_rf_control_intc_override(dev, 2, 0, 3); + b43_nphy_rf_control_override(dev, 8, 0, 3, false); b43_nphy_force_rf_sequence(dev, B43_RFSEQ_RX2TX); if (core == 0) { @@ -509,9 +513,8 @@ static void b43_nphy_rx_cal_phy_setup(struct b43_wldev *dev, u8 core) rxval = 4; txval = 2; } - - /* TODO: Call N PHY RF Ctrl Intc Override with 1, rxval, (core + 1) */ - /* TODO: Call N PHY RF Ctrl Intc Override with 1, txval, (2 - core) */ + b43_nphy_rf_control_intc_override(dev, 1, rxval, (core + 1)); + b43_nphy_rf_control_intc_override(dev, 1, txval, (2 - core)); } /* http://bcm-v4.sipsolutions.net/802.11/PHY/N/CalcRxIqComp */ @@ -714,6 +717,67 @@ static void b43_nphy_stop_playback(struct b43_wldev *dev) b43_nphy_stay_in_carrier_search(dev, 0); } +/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/SpurWar */ +static void b43_nphy_spur_workaround(struct b43_wldev *dev) +{ + struct b43_phy_n *nphy = dev->phy.n; + + unsigned int channel; + int tone[2] = { 57, 58 }; + u32 noise[2] = { 0x3FF, 0x3FF }; + + B43_WARN_ON(dev->phy.rev < 3); + + if (nphy->hang_avoid) + b43_nphy_stay_in_carrier_search(dev, 1); + + /* FIXME: channel = radio_chanspec */ + + if (nphy->gband_spurwar_en) { + /* TODO: N PHY Adjust Analog Pfbw (7) */ + if (channel == 11 && dev->phy.is_40mhz) + ; /* TODO: N PHY Adjust Min Noise Var(2, tone, noise)*/ + else + ; /* TODO: N PHY Adjust Min Noise Var(0, NULL, NULL)*/ + /* TODO: N PHY Adjust CRS Min Power (0x1E) */ + } + + if (nphy->aband_spurwar_en) { + if (channel == 54) { + tone[0] = 0x20; + noise[0] = 0x25F; + } else if (channel == 38 || channel == 102 || channel == 118) { + if (0 /* FIXME */) { + tone[0] = 0x20; + noise[0] = 0x21F; + } else { + tone[0] = 0; + noise[0] = 0; + } + } else if (channel == 134) { + tone[0] = 0x20; + noise[0] = 0x21F; + } else if (channel == 151) { + tone[0] = 0x10; + noise[0] = 0x23F; + } else if (channel == 153 || channel == 161) { + tone[0] = 0x30; + noise[0] = 0x23F; + } else { + tone[0] = 0; + noise[0] = 0; + } + + if (!tone[0] && !noise[0]) + ; /* TODO: N PHY Adjust Min Noise Var(1, tone, noise)*/ + else + ; /* TODO: N PHY Adjust Min Noise Var(0, NULL, NULL)*/ + } + + if (nphy->hang_avoid) + b43_nphy_stay_in_carrier_search(dev, 0); +} + /* http://bcm-v4.sipsolutions.net/802.11/PHY/N/WorkaroundsGainCtrl */ static void b43_nphy_gain_crtl_workarounds(struct b43_wldev *dev) { @@ -953,6 +1017,33 @@ static void b43_nphy_workarounds(struct b43_wldev *dev) b43_nphy_stay_in_carrier_search(dev, 0); } +/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/LoadSampleTable */ +static int b43_nphy_load_samples(struct b43_wldev *dev, + struct b43_c32 *samples, u16 len) { + struct b43_phy_n *nphy = dev->phy.n; + u16 i; + u32 *data; + + data = kzalloc(len * sizeof(u32), GFP_KERNEL); + if (!data) { + b43err(dev->wl, "allocation for samples loading failed\n"); + return -ENOMEM; + } + if (nphy->hang_avoid) + b43_nphy_stay_in_carrier_search(dev, 1); + + for (i = 0; i < len; i++) { + data[i] = (samples[i].i & 0x3FF << 10); + data[i] |= samples[i].q & 0x3FF; + } + b43_ntab_write_bulk(dev, B43_NTAB32(17, 0), len, data); + + kfree(data); + if (nphy->hang_avoid) + b43_nphy_stay_in_carrier_search(dev, 0); + return 0; +} + /* http://bcm-v4.sipsolutions.net/802.11/PHY/N/GenLoadSamples */ static u16 b43_nphy_gen_load_samples(struct b43_wldev *dev, u32 freq, u16 max, bool test) @@ -978,6 +1069,10 @@ static u16 b43_nphy_gen_load_samples(struct b43_wldev *dev, u32 freq, u16 max, } samples = kzalloc(len * sizeof(struct b43_c32), GFP_KERNEL); + if (!samples) { + b43err(dev->wl, "allocation for samples generation failed\n"); + return 0; + } rot = (((freq * 36) / bw) << 16) / 100; angle = 0; @@ -988,9 +1083,9 @@ static u16 b43_nphy_gen_load_samples(struct b43_wldev *dev, u32 freq, u16 max, samples[i].i = CORDIC_CONVERT(samples[i].i * max); } - /* TODO: Call N PHY Load Sample Table with buffer, len as arguments */ + i = b43_nphy_load_samples(dev, samples, len); kfree(samples); - return len; + return (i < 0) ? 0 : len; } /* http://bcm-v4.sipsolutions.net/802.11/PHY/N/RunSamples */ @@ -1264,6 +1359,104 @@ static void b43_nphy_rf_control_override(struct b43_wldev *dev, u16 field, } } +/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/RFCtrlIntcOverride */ +static void b43_nphy_rf_control_intc_override(struct b43_wldev *dev, u8 field, + u16 value, u8 core) +{ + u8 i, j; + u16 reg, tmp, val; + + B43_WARN_ON(dev->phy.rev < 3); + B43_WARN_ON(field > 4); + + for (i = 0; i < 2; i++) { + if ((core == 1 && i == 1) || (core == 2 && !i)) + continue; + + reg = (i == 0) ? + B43_NPHY_RFCTL_INTC1 : B43_NPHY_RFCTL_INTC2; + b43_phy_mask(dev, reg, 0xFBFF); + + switch (field) { + case 0: + b43_phy_write(dev, reg, 0); + b43_nphy_force_rf_sequence(dev, B43_RFSEQ_RESET2RX); + break; + case 1: + if (!i) { + b43_phy_maskset(dev, B43_NPHY_RFCTL_INTC1, + 0xFC3F, (value << 6)); + b43_phy_maskset(dev, B43_NPHY_TXF_40CO_B1S1, + 0xFFFE, 1); + b43_phy_set(dev, B43_NPHY_RFCTL_CMD, + B43_NPHY_RFCTL_CMD_START); + for (j = 0; j < 100; j++) { + if (b43_phy_read(dev, B43_NPHY_RFCTL_CMD) & B43_NPHY_RFCTL_CMD_START) { + j = 0; + break; + } + udelay(10); + } + if (j) + b43err(dev->wl, + "intc override timeout\n"); + b43_phy_mask(dev, B43_NPHY_TXF_40CO_B1S1, + 0xFFFE); + } else { + b43_phy_maskset(dev, B43_NPHY_RFCTL_INTC2, + 0xFC3F, (value << 6)); + b43_phy_maskset(dev, B43_NPHY_RFCTL_OVER, + 0xFFFE, 1); + b43_phy_set(dev, B43_NPHY_RFCTL_CMD, + B43_NPHY_RFCTL_CMD_RXTX); + for (j = 0; j < 100; j++) { + if (b43_phy_read(dev, B43_NPHY_RFCTL_CMD) & B43_NPHY_RFCTL_CMD_RXTX) { + j = 0; + break; + } + udelay(10); + } + if (j) + b43err(dev->wl, + "intc override timeout\n"); + b43_phy_mask(dev, B43_NPHY_RFCTL_OVER, + 0xFFFE); + } + break; + case 2: + if (b43_current_band(dev->wl) == IEEE80211_BAND_5GHZ) { + tmp = 0x0020; + val = value << 5; + } else { + tmp = 0x0010; + val = value << 4; + } + b43_phy_maskset(dev, reg, ~tmp, val); + break; + case 3: + if (b43_current_band(dev->wl) == IEEE80211_BAND_5GHZ) { + tmp = 0x0001; + val = value; + } else { + tmp = 0x0004; + val = value << 2; + } + b43_phy_maskset(dev, reg, ~tmp, val); + break; + case 4: + if (b43_current_band(dev->wl) == IEEE80211_BAND_5GHZ) { + tmp = 0x0002; + val = value << 1; + } else { + tmp = 0x0008; + val = value << 3; + } + b43_phy_maskset(dev, reg, ~tmp, val); + break; + } + } +} + static void b43_nphy_bphy_init(struct b43_wldev *dev) { unsigned int i; @@ -2161,9 +2354,9 @@ static void b43_nphy_tx_cal_phy_setup(struct b43_wldev *dev) regs[7] = b43_phy_read(dev, B43_NPHY_RFCTL_INTC1); regs[8] = b43_phy_read(dev, B43_NPHY_RFCTL_INTC2); - /* TODO: Call N PHY RF Ctrl Intc Override with 2, 1, 3 */ - /* TODO: Call N PHY RF Ctrl Intc Override with 1, 2, 1 */ - /* TODO: Call N PHY RF Ctrl Intc Override with 1, 8, 2 */ + b43_nphy_rf_control_intc_override(dev, 2, 1, 3); + b43_nphy_rf_control_intc_override(dev, 1, 2, 1); + b43_nphy_rf_control_intc_override(dev, 1, 8, 2); regs[9] = b43_phy_read(dev, B43_NPHY_PAPD_EN0); regs[10] = b43_phy_read(dev, B43_NPHY_PAPD_EN1); @@ -2194,6 +2387,55 @@ static void b43_nphy_tx_cal_phy_setup(struct b43_wldev *dev) } } +/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/SaveCal */ +static void b43_nphy_save_cal(struct b43_wldev *dev) +{ + struct b43_phy_n *nphy = dev->phy.n; + + struct b43_phy_n_iq_comp *rxcal_coeffs = NULL; + u16 *txcal_radio_regs = NULL; + u8 *iqcal_chanspec; + u16 *table = NULL; + + if (nphy->hang_avoid) + b43_nphy_stay_in_carrier_search(dev, 1); + + if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) { + rxcal_coeffs = &nphy->cal_cache.rxcal_coeffs_2G; + txcal_radio_regs = nphy->cal_cache.txcal_radio_regs_2G; + iqcal_chanspec = &nphy->iqcal_chanspec_2G; + table = nphy->cal_cache.txcal_coeffs_2G; + } else { + rxcal_coeffs = &nphy->cal_cache.rxcal_coeffs_5G; + txcal_radio_regs = nphy->cal_cache.txcal_radio_regs_5G; + iqcal_chanspec = &nphy->iqcal_chanspec_5G; + table = nphy->cal_cache.txcal_coeffs_5G; + } + + b43_nphy_rx_iq_coeffs(dev, false, rxcal_coeffs); + /* TODO use some definitions */ + if (dev->phy.rev >= 3) { + txcal_radio_regs[0] = b43_radio_read(dev, 0x2021); + txcal_radio_regs[1] = b43_radio_read(dev, 0x2022); + txcal_radio_regs[2] = b43_radio_read(dev, 0x3021); + txcal_radio_regs[3] = b43_radio_read(dev, 0x3022); + txcal_radio_regs[4] = b43_radio_read(dev, 0x2023); + txcal_radio_regs[5] = b43_radio_read(dev, 0x2024); + txcal_radio_regs[6] = b43_radio_read(dev, 0x3023); + txcal_radio_regs[7] = b43_radio_read(dev, 0x3024); + } else { + txcal_radio_regs[0] = b43_radio_read(dev, 0x8B); + txcal_radio_regs[1] = b43_radio_read(dev, 0xBA); + txcal_radio_regs[2] = b43_radio_read(dev, 0x8D); + txcal_radio_regs[3] = b43_radio_read(dev, 0xBC); + } + *iqcal_chanspec = nphy->radio_chanspec; + b43_ntab_write_bulk(dev, B43_NTAB16(15, 80), 8, table); + + if (nphy->hang_avoid) + b43_nphy_stay_in_carrier_search(dev, 0); +} + /* http://bcm-v4.sipsolutions.net/802.11/PHY/N/RestoreCal */ static void b43_nphy_restore_cal(struct b43_wldev *dev) { @@ -2486,6 +2728,39 @@ static int b43_nphy_cal_tx_iq_lo(struct b43_wldev *dev, return error; } +/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/ReapplyTxCalCoeffs */ +static void b43_nphy_reapply_tx_cal_coeffs(struct b43_wldev *dev) +{ + struct b43_phy_n *nphy = dev->phy.n; + u8 i; + u16 buffer[7]; + bool equal = true; + + if (!nphy->txiqlocal_coeffsvalid || 1 /* FIXME */) + return; + + b43_ntab_read_bulk(dev, B43_NTAB16(15, 80), 7, buffer); + for (i = 0; i < 4; i++) { + if (buffer[i] != nphy->txiqlocal_bestc[i]) { + equal = false; + break; + } + } + + if (!equal) { + b43_ntab_write_bulk(dev, B43_NTAB16(15, 80), 4, + nphy->txiqlocal_bestc); + for (i = 0; i < 4; i++) + buffer[i] = 0; + b43_ntab_write_bulk(dev, B43_NTAB16(15, 88), 4, + buffer); + b43_ntab_write_bulk(dev, B43_NTAB16(15, 85), 2, + &nphy->txiqlocal_bestc[5]); + b43_ntab_write_bulk(dev, B43_NTAB16(15, 93), 2, + &nphy->txiqlocal_bestc[5]); + } +} + /* http://bcm-v4.sipsolutions.net/802.11/PHY/N/CalRxIqRev2 */ static int b43_nphy_rev2_cal_rx_iq(struct b43_wldev *dev, struct nphy_txgains target, u8 type, bool debug) @@ -2516,7 +2791,7 @@ static int b43_nphy_rev2_cal_rx_iq(struct b43_wldev *dev, b43_nphy_stay_in_carrier_search(dev, 1); if (dev->phy.rev < 2) - ;/* TODO: Call N PHY Reapply TX Cal Coeffs */ + b43_nphy_reapply_tx_cal_coeffs(dev); b43_ntab_read_bulk(dev, B43_NTAB16(7, 0x110), 2, gain_save); for (i = 0; i < 2; i++) { b43_nphy_iq_cal_gain_params(dev, i, target, &cal_params[i]); @@ -2858,7 +3133,7 @@ int b43_phy_initn(struct b43_wldev *dev) if (!b43_nphy_cal_tx_iq_lo(dev, target, true, false)) { if (b43_nphy_cal_rx_iq(dev, target, 2, 0) == 0) - ;/* Call N PHY Save Cal */ + b43_nphy_save_cal(dev); else if (nphy->mphase_cal_phase_id == 0) ;/* N PHY Periodic Calibration with argument 3 */ } else { @@ -2872,7 +3147,8 @@ int b43_phy_initn(struct b43_wldev *dev) if (phy->rev >= 3 && phy->rev <= 6) b43_phy_write(dev, B43_NPHY_PLOAD_CSENSE_EXTLEN, 0x0014); b43_nphy_tx_lp_fbw(dev); - /* TODO N PHY Spur Workaround */ + if (phy->rev >= 3) + b43_nphy_spur_workaround(dev); b43err(dev->wl, "IEEE 802.11n devices are not supported, yet.\n"); return 0; diff --git a/drivers/net/wireless/b43/phy_n.h b/drivers/net/wireless/b43/phy_n.h index ae82f0fc2096..403aad3f894f 100644 --- a/drivers/net/wireless/b43/phy_n.h +++ b/drivers/net/wireless/b43/phy_n.h @@ -975,6 +975,7 @@ struct b43_phy_n { u16 papd_epsilon_offset[2]; s32 preamble_override; u32 bb_mult_save; + u16 radio_chanspec; bool gain_boost; bool elna_gain_config; @@ -1001,6 +1002,9 @@ struct b43_phy_n { u16 classifier_state; u16 clip_state[2]; + bool aband_spurwar_en; + bool gband_spurwar_en; + bool ipa2g_on; u8 iqcal_chanspec_2G; u8 rssical_chanspec_2G; diff --git a/drivers/net/wireless/b43/pio.c b/drivers/net/wireless/b43/pio.c index c01b8e02412f..a6062c3e89a5 100644 --- a/drivers/net/wireless/b43/pio.c +++ b/drivers/net/wireless/b43/pio.c @@ -559,7 +559,6 @@ int b43_pio_tx(struct b43_wldev *dev, struct sk_buff *skb) b43err(dev->wl, "PIO transmission failure\n"); goto out; } - q->nr_tx_packets++; B43_WARN_ON(q->buffer_used > q->buffer_size); if (((q->buffer_size - q->buffer_used) < roundup(2 + 2 + 6, 4)) || @@ -605,22 +604,6 @@ void b43_pio_handle_txstatus(struct b43_wldev *dev, } } -void b43_pio_get_tx_stats(struct b43_wldev *dev, - struct ieee80211_tx_queue_stats *stats) -{ - const int nr_queues = dev->wl->hw->queues; - struct b43_pio_txqueue *q; - int i; - - for (i = 0; i < nr_queues; i++) { - q = select_queue_by_priority(dev, i); - - stats[i].len = B43_PIO_MAX_NR_TXPACKETS - q->free_packet_slots; - stats[i].limit = B43_PIO_MAX_NR_TXPACKETS; - stats[i].count = q->nr_tx_packets; - } -} - /* Returns whether we should fetch another frame. */ static bool pio_rx_frame(struct b43_pio_rxqueue *q) { diff --git a/drivers/net/wireless/b43/pio.h b/drivers/net/wireless/b43/pio.h index 7b3c42f93a16..1e516147424f 100644 --- a/drivers/net/wireless/b43/pio.h +++ b/drivers/net/wireless/b43/pio.h @@ -90,9 +90,6 @@ struct b43_pio_txqueue { struct b43_pio_txpacket packets[B43_PIO_MAX_NR_TXPACKETS]; struct list_head packets_list; - /* Total number of transmitted packets. */ - unsigned int nr_tx_packets; - /* Shortcut to the 802.11 core revision. This is to * avoid horrible pointer dereferencing in the fastpaths. */ u8 rev; @@ -160,8 +157,6 @@ void b43_pio_free(struct b43_wldev *dev); int b43_pio_tx(struct b43_wldev *dev, struct sk_buff *skb); void b43_pio_handle_txstatus(struct b43_wldev *dev, const struct b43_txstatus *status); -void b43_pio_get_tx_stats(struct b43_wldev *dev, - struct ieee80211_tx_queue_stats *stats); void b43_pio_rx(struct b43_pio_rxqueue *q); void b43_pio_tx_suspend(struct b43_wldev *dev); diff --git a/drivers/net/wireless/b43legacy/dma.c b/drivers/net/wireless/b43legacy/dma.c index 0a86bdf53154..8b9387c6ff36 100644 --- a/drivers/net/wireless/b43legacy/dma.c +++ b/drivers/net/wireless/b43legacy/dma.c @@ -1411,7 +1411,6 @@ int b43legacy_dma_tx(struct b43legacy_wldev *dev, b43legacyerr(dev->wl, "DMA tx mapping failure\n"); goto out_unlock; } - ring->nr_tx_packets++; if ((free_slots(ring) < SLOTS_PER_PACKET) || should_inject_overflow(ring)) { /* This TX ring is full. */ @@ -1527,25 +1526,6 @@ void b43legacy_dma_handle_txstatus(struct b43legacy_wldev *dev, spin_unlock(&ring->lock); } -void b43legacy_dma_get_tx_stats(struct b43legacy_wldev *dev, - struct ieee80211_tx_queue_stats *stats) -{ - const int nr_queues = dev->wl->hw->queues; - struct b43legacy_dmaring *ring; - unsigned long flags; - int i; - - for (i = 0; i < nr_queues; i++) { - ring = priority_to_txring(dev, i); - - spin_lock_irqsave(&ring->lock, flags); - stats[i].len = ring->used_slots / SLOTS_PER_PACKET; - stats[i].limit = ring->nr_slots / SLOTS_PER_PACKET; - stats[i].count = ring->nr_tx_packets; - spin_unlock_irqrestore(&ring->lock, flags); - } -} - static void dma_rx(struct b43legacy_dmaring *ring, int *slot) { diff --git a/drivers/net/wireless/b43legacy/dma.h b/drivers/net/wireless/b43legacy/dma.h index 2f186003c31e..f9681041c2d8 100644 --- a/drivers/net/wireless/b43legacy/dma.h +++ b/drivers/net/wireless/b43legacy/dma.h @@ -243,8 +243,6 @@ struct b43legacy_dmaring { int used_slots; /* Currently used slot in the ring. */ int current_slot; - /* Total number of packets sent. Statistics only. */ - unsigned int nr_tx_packets; /* Frameoffset in octets. */ u32 frameoffset; /* Descriptor buffer size. */ @@ -292,9 +290,6 @@ void b43legacy_dma_free(struct b43legacy_wldev *dev); void b43legacy_dma_tx_suspend(struct b43legacy_wldev *dev); void b43legacy_dma_tx_resume(struct b43legacy_wldev *dev); -void b43legacy_dma_get_tx_stats(struct b43legacy_wldev *dev, - struct ieee80211_tx_queue_stats *stats); - int b43legacy_dma_tx(struct b43legacy_wldev *dev, struct sk_buff *skb); void b43legacy_dma_handle_txstatus(struct b43legacy_wldev *dev, @@ -315,11 +310,6 @@ void b43legacy_dma_free(struct b43legacy_wldev *dev) { } static inline -void b43legacy_dma_get_tx_stats(struct b43legacy_wldev *dev, - struct ieee80211_tx_queue_stats *stats) -{ -} -static inline int b43legacy_dma_tx(struct b43legacy_wldev *dev, struct sk_buff *skb) { diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c index 874a64a6c610..1d070be5a678 100644 --- a/drivers/net/wireless/b43legacy/main.c +++ b/drivers/net/wireless/b43legacy/main.c @@ -2446,29 +2446,6 @@ static int b43legacy_op_conf_tx(struct ieee80211_hw *hw, u16 queue, return 0; } -static int b43legacy_op_get_tx_stats(struct ieee80211_hw *hw, - struct ieee80211_tx_queue_stats *stats) -{ - struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw); - struct b43legacy_wldev *dev = wl->current_dev; - unsigned long flags; - int err = -ENODEV; - - if (!dev) - goto out; - spin_lock_irqsave(&wl->irq_lock, flags); - if (likely(b43legacy_status(dev) >= B43legacy_STAT_STARTED)) { - if (b43legacy_using_pio(dev)) - b43legacy_pio_get_tx_stats(dev, stats); - else - b43legacy_dma_get_tx_stats(dev, stats); - err = 0; - } - spin_unlock_irqrestore(&wl->irq_lock, flags); -out: - return err; -} - static int b43legacy_op_get_stats(struct ieee80211_hw *hw, struct ieee80211_low_level_stats *stats) { @@ -2923,6 +2900,7 @@ static int b43legacy_wireless_core_start(struct b43legacy_wldev *dev) goto out; } /* We are ready to run. */ + ieee80211_wake_queues(dev->wl->hw); b43legacy_set_status(dev, B43legacy_STAT_STARTED); /* Start data flow (TX/RX) */ @@ -3343,6 +3321,7 @@ static int b43legacy_wireless_core_init(struct b43legacy_wldev *dev) b43legacy_security_init(dev); b43legacy_rng_init(wl); + ieee80211_wake_queues(dev->wl->hw); b43legacy_set_status(dev, B43legacy_STAT_INITIALIZED); b43legacy_leds_init(dev); @@ -3511,7 +3490,6 @@ static const struct ieee80211_ops b43legacy_hw_ops = { .bss_info_changed = b43legacy_op_bss_info_changed, .configure_filter = b43legacy_op_configure_filter, .get_stats = b43legacy_op_get_stats, - .get_tx_stats = b43legacy_op_get_tx_stats, .start = b43legacy_op_start, .stop = b43legacy_op_stop, .set_tim = b43legacy_op_beacon_set_tim, diff --git a/drivers/net/wireless/b43legacy/pio.c b/drivers/net/wireless/b43legacy/pio.c index 51866c9a2769..017c0e9c37ef 100644 --- a/drivers/net/wireless/b43legacy/pio.c +++ b/drivers/net/wireless/b43legacy/pio.c @@ -477,7 +477,6 @@ int b43legacy_pio_tx(struct b43legacy_wldev *dev, list_move_tail(&packet->list, &queue->txqueue); queue->nr_txfree--; - queue->nr_tx_packets++; B43legacy_WARN_ON(queue->nr_txfree >= B43legacy_PIO_MAXTXPACKETS); tasklet_schedule(&queue->txtask); @@ -546,18 +545,6 @@ void b43legacy_pio_handle_txstatus(struct b43legacy_wldev *dev, tasklet_schedule(&queue->txtask); } -void b43legacy_pio_get_tx_stats(struct b43legacy_wldev *dev, - struct ieee80211_tx_queue_stats *stats) -{ - struct b43legacy_pio *pio = &dev->pio; - struct b43legacy_pioqueue *queue; - - queue = pio->queue1; - stats[0].len = B43legacy_PIO_MAXTXPACKETS - queue->nr_txfree; - stats[0].limit = B43legacy_PIO_MAXTXPACKETS; - stats[0].count = queue->nr_tx_packets; -} - static void pio_rx_error(struct b43legacy_pioqueue *queue, int clear_buffers, const char *error) diff --git a/drivers/net/wireless/b43legacy/pio.h b/drivers/net/wireless/b43legacy/pio.h index 464fec05a06d..8e6773ea6e75 100644 --- a/drivers/net/wireless/b43legacy/pio.h +++ b/drivers/net/wireless/b43legacy/pio.h @@ -74,10 +74,6 @@ struct b43legacy_pioqueue { * posted to the device. We are waiting for the txstatus. */ struct list_head txrunning; - /* Total number or packets sent. - * (This counter can obviously wrap). - */ - unsigned int nr_tx_packets; struct tasklet_struct txtask; struct b43legacy_pio_txpacket tx_packets_cache[B43legacy_PIO_MAXTXPACKETS]; @@ -106,8 +102,6 @@ int b43legacy_pio_tx(struct b43legacy_wldev *dev, struct sk_buff *skb); void b43legacy_pio_handle_txstatus(struct b43legacy_wldev *dev, const struct b43legacy_txstatus *status); -void b43legacy_pio_get_tx_stats(struct b43legacy_wldev *dev, - struct ieee80211_tx_queue_stats *stats); void b43legacy_pio_rx(struct b43legacy_pioqueue *queue); /* Suspend TX queue in hardware. */ @@ -140,11 +134,6 @@ void b43legacy_pio_handle_txstatus(struct b43legacy_wldev *dev, { } static inline -void b43legacy_pio_get_tx_stats(struct b43legacy_wldev *dev, - struct ieee80211_tx_queue_stats *stats) -{ -} -static inline void b43legacy_pio_rx(struct b43legacy_pioqueue *queue) { } diff --git a/drivers/net/wireless/iwlwifi/iwl-1000.c b/drivers/net/wireless/iwlwifi/iwl-1000.c index 9d1820676f30..694ceef88590 100644 --- a/drivers/net/wireless/iwlwifi/iwl-1000.c +++ b/drivers/net/wireless/iwlwifi/iwl-1000.c @@ -247,6 +247,7 @@ struct iwl_cfg iwl1000_bgn_cfg = { .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS, .support_ct_kill_exit = true, .plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF, + .chain_noise_scale = 1000, }; struct iwl_cfg iwl1000_bg_cfg = { @@ -274,6 +275,7 @@ struct iwl_cfg iwl1000_bg_cfg = { .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS, .support_ct_kill_exit = true, .plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF, + .chain_noise_scale = 1000, }; MODULE_FIRMWARE(IWL1000_MODULE_FIRMWARE(IWL1000_UCODE_API_MAX)); diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c index 6d5988901341..f3d662c8cbcf 100644 --- a/drivers/net/wireless/iwlwifi/iwl-5000.c +++ b/drivers/net/wireless/iwlwifi/iwl-5000.c @@ -179,14 +179,24 @@ static void iwl5000_gain_computation(struct iwl_priv *priv, data->delta_gain_code[i] = 0; continue; } - delta_g = (1000 * ((s32)average_noise[default_chain] - + + delta_g = (priv->cfg->chain_noise_scale * + ((s32)average_noise[default_chain] - (s32)average_noise[i])) / 1500; + /* bound gain by 2 bits value max, 3rd bit is sign */ data->delta_gain_code[i] = min(abs(delta_g), (long) CHAIN_NOISE_MAX_DELTA_GAIN_CODE); if (delta_g < 0) - /* set negative sign */ + /* + * set negative sign ... + * note to Intel developers: This is uCode API format, + * not the format of any internal device registers. + * Do not change this format for e.g. 6050 or similar + * devices. Change format only if more resolution + * (i.e. more than 2 bits magnitude) is needed. + */ data->delta_gain_code[i] |= (1 << 2); } @@ -1587,6 +1597,7 @@ struct iwl_cfg iwl5300_agn_cfg = { .use_rts_for_ht = true, /* use rts/cts protection */ .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS, .plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF, + .chain_noise_scale = 1000, }; struct iwl_cfg iwl5100_bgn_cfg = { @@ -1612,6 +1623,7 @@ struct iwl_cfg iwl5100_bgn_cfg = { .use_rts_for_ht = true, /* use rts/cts protection */ .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS, .plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF, + .chain_noise_scale = 1000, }; struct iwl_cfg iwl5100_abg_cfg = { @@ -1635,6 +1647,7 @@ struct iwl_cfg iwl5100_abg_cfg = { .led_compensation = 51, .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS, .plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF, + .chain_noise_scale = 1000, }; struct iwl_cfg iwl5100_agn_cfg = { @@ -1660,6 +1673,7 @@ struct iwl_cfg iwl5100_agn_cfg = { .use_rts_for_ht = true, /* use rts/cts protection */ .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS, .plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF, + .chain_noise_scale = 1000, }; struct iwl_cfg iwl5350_agn_cfg = { @@ -1685,6 +1699,7 @@ struct iwl_cfg iwl5350_agn_cfg = { .use_rts_for_ht = true, /* use rts/cts protection */ .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS, .plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF, + .chain_noise_scale = 1000, }; struct iwl_cfg iwl5150_agn_cfg = { @@ -1710,6 +1725,7 @@ struct iwl_cfg iwl5150_agn_cfg = { .use_rts_for_ht = true, /* use rts/cts protection */ .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS, .plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF, + .chain_noise_scale = 1000, }; struct iwl_cfg iwl5150_abg_cfg = { @@ -1733,6 +1749,7 @@ struct iwl_cfg iwl5150_abg_cfg = { .led_compensation = 51, .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS, .plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF, + .chain_noise_scale = 1000, }; MODULE_FIRMWARE(IWL5000_MODULE_FIRMWARE(IWL5000_UCODE_API_MAX)); diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c index a9f8551e0e40..782e23a26984 100644 --- a/drivers/net/wireless/iwlwifi/iwl-6000.c +++ b/drivers/net/wireless/iwlwifi/iwl-6000.c @@ -277,21 +277,6 @@ static const struct iwl_ops iwl6000_ops = { .led = &iwlagn_led_ops, }; -static struct iwl_hcmd_utils_ops iwl6050_hcmd_utils = { - .get_hcmd_size = iwl5000_get_hcmd_size, - .build_addsta_hcmd = iwl5000_build_addsta_hcmd, - .rts_tx_cmd_flag = iwl5000_rts_tx_cmd_flag, - .calc_rssi = iwl5000_calc_rssi, -}; - -static const struct iwl_ops iwl6050_ops = { - .ucode = &iwl5000_ucode, - .lib = &iwl6000_lib, - .hcmd = &iwl5000_hcmd, - .utils = &iwl6050_hcmd_utils, - .led = &iwlagn_led_ops, -}; - /* * "i": Internal configuration, use internal Power Amplifier */ @@ -324,6 +309,7 @@ struct iwl_cfg iwl6000i_2agn_cfg = { .adv_thermal_throttle = true, .support_ct_kill_exit = true, .plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF, + .chain_noise_scale = 1000, }; struct iwl_cfg iwl6000i_2abg_cfg = { @@ -354,6 +340,7 @@ struct iwl_cfg iwl6000i_2abg_cfg = { .adv_thermal_throttle = true, .support_ct_kill_exit = true, .plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF, + .chain_noise_scale = 1000, }; struct iwl_cfg iwl6000i_2bg_cfg = { @@ -384,6 +371,7 @@ struct iwl_cfg iwl6000i_2bg_cfg = { .adv_thermal_throttle = true, .support_ct_kill_exit = true, .plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF, + .chain_noise_scale = 1000, }; struct iwl_cfg iwl6050_2agn_cfg = { @@ -392,7 +380,7 @@ struct iwl_cfg iwl6050_2agn_cfg = { .ucode_api_max = IWL6050_UCODE_API_MAX, .ucode_api_min = IWL6050_UCODE_API_MIN, .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N, - .ops = &iwl6050_ops, + .ops = &iwl6000_ops, .eeprom_size = OTP_LOW_IMAGE_SIZE, .eeprom_ver = EEPROM_6050_EEPROM_VERSION, .eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION, @@ -415,6 +403,7 @@ struct iwl_cfg iwl6050_2agn_cfg = { .adv_thermal_throttle = true, .support_ct_kill_exit = true, .plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF, + .chain_noise_scale = 1500, }; struct iwl_cfg iwl6050_2abg_cfg = { @@ -423,7 +412,7 @@ struct iwl_cfg iwl6050_2abg_cfg = { .ucode_api_max = IWL6050_UCODE_API_MAX, .ucode_api_min = IWL6050_UCODE_API_MIN, .sku = IWL_SKU_A|IWL_SKU_G, - .ops = &iwl6050_ops, + .ops = &iwl6000_ops, .eeprom_size = OTP_LOW_IMAGE_SIZE, .eeprom_ver = EEPROM_6050_EEPROM_VERSION, .eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION, @@ -445,6 +434,7 @@ struct iwl_cfg iwl6050_2abg_cfg = { .adv_thermal_throttle = true, .support_ct_kill_exit = true, .plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF, + .chain_noise_scale = 1500, }; struct iwl_cfg iwl6000_3agn_cfg = { @@ -476,6 +466,7 @@ struct iwl_cfg iwl6000_3agn_cfg = { .adv_thermal_throttle = true, .support_ct_kill_exit = true, .plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF, + .chain_noise_scale = 1000, }; MODULE_FIRMWARE(IWL6000_MODULE_FIRMWARE(IWL6000_UCODE_API_MAX)); diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index d0268280d679..1854c720b5e0 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -2631,7 +2631,7 @@ static int iwl_mac_setup_register(struct iwl_priv *priv) */ hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; - hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; + hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX + 1; /* we create the 802.11 header and a zero-length SSID element */ hw->wiphy->max_scan_ie_len = IWL_MAX_PROBE_REQUEST - 24 - 2; @@ -3440,7 +3440,6 @@ static struct ieee80211_ops iwl_hw_ops = { .set_key = iwl_mac_set_key, .update_tkip_key = iwl_mac_update_tkip_key, .get_stats = iwl_mac_get_stats, - .get_tx_stats = iwl_mac_get_tx_stats, .conf_tx = iwl_mac_conf_tx, .reset_tsf = iwl_mac_reset_tsf, .bss_info_changed = iwl_bss_info_changed, diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index 02bf17ecaf54..d390eef2efe5 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -2787,6 +2787,7 @@ int iwl_mac_config(struct ieee80211_hw *hw, u32 changed) if ((le16_to_cpu(priv->staging_rxon.channel) != ch)) priv->staging_rxon.flags = 0; + iwl_set_rxon_ht(priv, ht_conf); iwl_set_rxon_channel(priv, conf->channel); iwl_set_flags_for_band(priv, conf->channel->band); @@ -2850,42 +2851,6 @@ out: } EXPORT_SYMBOL(iwl_mac_config); -int iwl_mac_get_tx_stats(struct ieee80211_hw *hw, - struct ieee80211_tx_queue_stats *stats) -{ - struct iwl_priv *priv = hw->priv; - int i, avail; - struct iwl_tx_queue *txq; - struct iwl_queue *q; - unsigned long flags; - - IWL_DEBUG_MAC80211(priv, "enter\n"); - - if (!iwl_is_ready_rf(priv)) { - IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n"); - return -EIO; - } - - spin_lock_irqsave(&priv->lock, flags); - - for (i = 0; i < AC_NUM; i++) { - txq = &priv->txq[i]; - q = &txq->q; - avail = iwl_queue_space(q); - - stats[i].len = q->n_window - avail; - stats[i].limit = q->n_window - q->high_mark; - stats[i].count = q->n_window; - - } - spin_unlock_irqrestore(&priv->lock, flags); - - IWL_DEBUG_MAC80211(priv, "leave\n"); - - return 0; -} -EXPORT_SYMBOL(iwl_mac_get_tx_stats); - void iwl_mac_reset_tsf(struct ieee80211_hw *hw) { struct iwl_priv *priv = hw->priv; diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h index ec1fe1d7cc9a..8f0c564e68b0 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.h +++ b/drivers/net/wireless/iwlwifi/iwl-core.h @@ -293,6 +293,7 @@ struct iwl_cfg { bool support_ct_kill_exit; const bool support_wimax_coexist; u8 plcp_delta_threshold; + s32 chain_noise_scale; }; /*************************** @@ -341,8 +342,6 @@ void iwl_mac_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif); int iwl_mac_config(struct ieee80211_hw *hw, u32 changed); void iwl_config_ap(struct iwl_priv *priv); -int iwl_mac_get_tx_stats(struct ieee80211_hw *hw, - struct ieee80211_tx_queue_stats *stats); void iwl_mac_reset_tsf(struct ieee80211_hw *hw); int iwl_alloc_txq_mem(struct iwl_priv *priv); void iwl_free_txq_mem(struct iwl_priv *priv); diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c index 08faafae8497..f786a407638f 100644 --- a/drivers/net/wireless/iwlwifi/iwl-scan.c +++ b/drivers/net/wireless/iwlwifi/iwl-scan.c @@ -651,9 +651,20 @@ u16 iwl_fill_probe_req(struct iwl_priv *priv, struct ieee80211_mgmt *frame, if (left < 0) return 0; *pos++ = WLAN_EID_SSID; - *pos++ = 0; - - len += 2; + if (!priv->is_internal_short_scan && + priv->scan_request->n_ssids) { + struct cfg80211_ssid *ssid = + priv->scan_request->ssids; + + /* Broadcast if ssid_len is 0 */ + *pos++ = ssid->ssid_len; + memcpy(pos, ssid->ssid, ssid->ssid_len); + pos += ssid->ssid_len; + len += 2 + ssid->ssid_len; + } else { + *pos++ = 0; + len += 2; + } if (WARN_ON(left < ie_len)) return len; @@ -782,20 +793,26 @@ static void iwl_bg_request_scan(struct work_struct *data) if (priv->is_internal_short_scan) { IWL_DEBUG_SCAN(priv, "Start internal passive scan.\n"); } else if (priv->scan_request->n_ssids) { - int i, p = 0; IWL_DEBUG_SCAN(priv, "Kicking off active scan\n"); - for (i = 0; i < priv->scan_request->n_ssids; i++) { - /* always does wildcard anyway */ - if (!priv->scan_request->ssids[i].ssid_len) - continue; - scan->direct_scan[p].id = WLAN_EID_SSID; - scan->direct_scan[p].len = - priv->scan_request->ssids[i].ssid_len; - memcpy(scan->direct_scan[p].ssid, - priv->scan_request->ssids[i].ssid, - priv->scan_request->ssids[i].ssid_len); - n_probes++; - p++; + /* + * The first SSID to scan is stuffed into the probe request + * template and the remaining ones are handled through the + * direct_scan array. + */ + if (priv->scan_request->n_ssids > 1) { + int i, p = 0; + for (i = 1; i < priv->scan_request->n_ssids; i++) { + if (!priv->scan_request->ssids[i].ssid_len) + continue; + scan->direct_scan[p].id = WLAN_EID_SSID; + scan->direct_scan[p].len = + priv->scan_request->ssids[i].ssid_len; + memcpy(scan->direct_scan[p].ssid, + priv->scan_request->ssids[i].ssid, + priv->scan_request->ssids[i].ssid_len); + n_probes++; + p++; + } } is_active = true; } else diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c index 119da54116de..eac2b9a95711 100644 --- a/drivers/net/wireless/iwlwifi/iwl3945-base.c +++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c @@ -3835,7 +3835,6 @@ static struct ieee80211_ops iwl3945_hw_ops = { .config = iwl_mac_config, .configure_filter = iwl_configure_filter, .set_key = iwl3945_mac_set_key, - .get_tx_stats = iwl_mac_get_tx_stats, .conf_tx = iwl_mac_conf_tx, .reset_tsf = iwl_mac_reset_tsf, .bss_info_changed = iwl_bss_info_changed, diff --git a/drivers/net/wireless/libertas/cmdresp.c b/drivers/net/wireless/libertas/cmdresp.c index 0334a58820ee..e7470442f76b 100644 --- a/drivers/net/wireless/libertas/cmdresp.c +++ b/drivers/net/wireless/libertas/cmdresp.c @@ -240,11 +240,6 @@ int lbs_process_command_response(struct lbs_private *priv, u8 *data, u32 len) /* Now we got response from FW, cancel the command timer */ del_timer(&priv->command_timer); priv->cmd_timed_out = 0; - if (priv->nr_retries) { - lbs_pr_info("Received result %x to command %x after %d retries\n", - result, curcmd, priv->nr_retries); - priv->nr_retries = 0; - } /* Store the response code to cur_cmd_retcode. */ priv->cur_cmd_retcode = result; diff --git a/drivers/net/wireless/libertas/dev.h b/drivers/net/wireless/libertas/dev.h index c348aff8f309..6977ee820214 100644 --- a/drivers/net/wireless/libertas/dev.h +++ b/drivers/net/wireless/libertas/dev.h @@ -109,7 +109,6 @@ struct lbs_private { struct list_head cmdpendingq; /* pending command buffers */ wait_queue_head_t cmd_pending; struct timer_list command_timer; - int nr_retries; int cmd_timed_out; /* Command responses sent from the hardware to the driver */ diff --git a/drivers/net/wireless/libertas/if_spi.c b/drivers/net/wireless/libertas/if_spi.c index bf4bfbae6227..3ea03f259ee7 100644 --- a/drivers/net/wireless/libertas/if_spi.c +++ b/drivers/net/wireless/libertas/if_spi.c @@ -23,6 +23,7 @@ #include <linux/kthread.h> #include <linux/list.h> #include <linux/netdevice.h> +#include <linux/semaphore.h> #include <linux/spi/libertas_spi.h> #include <linux/spi/spi.h> diff --git a/drivers/net/wireless/libertas/main.c b/drivers/net/wireless/libertas/main.c index 60bde1233a30..cd8ed7fdafad 100644 --- a/drivers/net/wireless/libertas/main.c +++ b/drivers/net/wireless/libertas/main.c @@ -536,31 +536,14 @@ static int lbs_thread(void *data) if (priv->cmd_timed_out && priv->cur_cmd) { struct cmd_ctrl_node *cmdnode = priv->cur_cmd; - if (++priv->nr_retries > 3) { - lbs_pr_info("Excessive timeouts submitting " - "command 0x%04x\n", - le16_to_cpu(cmdnode->cmdbuf->command)); - lbs_complete_command(priv, cmdnode, -ETIMEDOUT); - priv->nr_retries = 0; - if (priv->reset_card) - priv->reset_card(priv); - } else { - priv->cur_cmd = NULL; - priv->dnld_sent = DNLD_RES_RECEIVED; - lbs_pr_info("requeueing command 0x%04x due " - "to timeout (#%d)\n", - le16_to_cpu(cmdnode->cmdbuf->command), - priv->nr_retries); - - /* Stick it back at the _top_ of the pending queue - for immediate resubmission */ - list_add(&cmdnode->list, &priv->cmdpendingq); - } + lbs_pr_info("Timeout submitting command 0x%04x\n", + le16_to_cpu(cmdnode->cmdbuf->command)); + lbs_complete_command(priv, cmdnode, -ETIMEDOUT); + if (priv->reset_card) + priv->reset_card(priv); } priv->cmd_timed_out = 0; - - if (!priv->fw_ready) continue; @@ -732,7 +715,7 @@ done: * This function handles the timeout of command sending. * It will re-send the same command again. */ -static void command_timer_fn(unsigned long data) +static void lbs_cmd_timeout_handler(unsigned long data) { struct lbs_private *priv = (struct lbs_private *)data; unsigned long flags; @@ -851,7 +834,7 @@ static int lbs_init_adapter(struct lbs_private *priv) mutex_init(&priv->lock); - setup_timer(&priv->command_timer, command_timer_fn, + setup_timer(&priv->command_timer, lbs_cmd_timeout_handler, (unsigned long)priv); setup_timer(&priv->auto_deepsleep_timer, auto_deepsleep_timer_fn, (unsigned long)priv); diff --git a/drivers/net/wireless/libertas_tf/main.c b/drivers/net/wireless/libertas_tf/main.c index ba3eb0101d55..6ab30033c26c 100644 --- a/drivers/net/wireless/libertas_tf/main.c +++ b/drivers/net/wireless/libertas_tf/main.c @@ -555,6 +555,9 @@ struct lbtf_private *lbtf_add_card(void *card, struct device *dmdev) priv->band.n_channels = ARRAY_SIZE(lbtf_channels); priv->band.channels = priv->channels; hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band; + hw->wiphy->interface_modes = + BIT(NL80211_IFTYPE_STATION) | + BIT(NL80211_IFTYPE_ADHOC); skb_queue_head_init(&priv->bc_ps_buf); SET_IEEE80211_DEV(hw, dmdev); diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index 0dbda8dfbd99..00ffe6dd435e 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -32,6 +32,10 @@ static int radios = 2; module_param(radios, int, 0444); MODULE_PARM_DESC(radios, "Number of simulated radios"); +static bool fake_hw_scan; +module_param(fake_hw_scan, bool, 0444); +MODULE_PARM_DESC(fake_hw_scan, "Install fake (no-op) hw-scan handler"); + /** * enum hwsim_regtest - the type of regulatory tests we offer * @@ -908,8 +912,43 @@ static void mac80211_hwsim_flush(struct ieee80211_hw *hw, bool drop) */ } +struct hw_scan_done { + struct delayed_work w; + struct ieee80211_hw *hw; +}; -static const struct ieee80211_ops mac80211_hwsim_ops = +static void hw_scan_done(struct work_struct *work) +{ + struct hw_scan_done *hsd = + container_of(work, struct hw_scan_done, w.work); + + ieee80211_scan_completed(hsd->hw, false); + kfree(hsd); +} + +static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw, + struct cfg80211_scan_request *req) +{ + struct hw_scan_done *hsd = kzalloc(sizeof(*hsd), GFP_KERNEL); + int i; + + if (!hsd) + return -ENOMEM; + + hsd->hw = hw; + INIT_DELAYED_WORK(&hsd->w, hw_scan_done); + + printk(KERN_DEBUG "hwsim scan request\n"); + for (i = 0; i < req->n_channels; i++) + printk(KERN_DEBUG "hwsim scan freq %d\n", + req->channels[i]->center_freq); + + ieee80211_queue_delayed_work(hw, &hsd->w, 2 * HZ); + + return 0; +} + +static struct ieee80211_ops mac80211_hwsim_ops = { .tx = mac80211_hwsim_tx, .start = mac80211_hwsim_start, @@ -1119,6 +1158,9 @@ static int __init init_mac80211_hwsim(void) if (radios < 1 || radios > 100) return -EINVAL; + if (fake_hw_scan) + mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan; + spin_lock_init(&hwsim_radio_lock); INIT_LIST_HEAD(&hwsim_radios); diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index f0f08f3919cc..0cfdb9db66f7 100644 --- a/drivers/net/wireless/mwl8k.c +++ b/drivers/net/wireless/mwl8k.c @@ -119,7 +119,7 @@ struct mwl8k_tx_queue { /* sw appends here */ int tail; - struct ieee80211_tx_queue_stats stats; + unsigned int len; struct mwl8k_tx_desc *txd; dma_addr_t txd_dma; struct sk_buff **skb; @@ -1136,8 +1136,7 @@ static int mwl8k_txq_init(struct ieee80211_hw *hw, int index) int size; int i; - memset(&txq->stats, 0, sizeof(struct ieee80211_tx_queue_stats)); - txq->stats.limit = MWL8K_TX_DESCS; + txq->len = 0; txq->head = 0; txq->tail = 0; @@ -1213,7 +1212,7 @@ static void mwl8k_dump_tx_rings(struct ieee80211_hw *hw) printk(KERN_ERR "%s: txq[%d] len=%d head=%d tail=%d " "fw_owned=%d drv_owned=%d unused=%d\n", wiphy_name(hw->wiphy), i, - txq->stats.len, txq->head, txq->tail, + txq->len, txq->head, txq->tail, fw_owned, drv_owned, unused); } } @@ -1299,7 +1298,7 @@ mwl8k_txq_reclaim(struct ieee80211_hw *hw, int index, int limit, int force) int processed; processed = 0; - while (txq->stats.len > 0 && limit--) { + while (txq->len > 0 && limit--) { int tx; struct mwl8k_tx_desc *tx_desc; unsigned long addr; @@ -1321,8 +1320,8 @@ mwl8k_txq_reclaim(struct ieee80211_hw *hw, int index, int limit, int force) } txq->head = (tx + 1) % MWL8K_TX_DESCS; - BUG_ON(txq->stats.len == 0); - txq->stats.len--; + BUG_ON(txq->len == 0); + txq->len--; priv->pending_tx_pkts--; addr = le32_to_cpu(tx_desc->pkt_phys_addr); @@ -1454,8 +1453,7 @@ mwl8k_txq_xmit(struct ieee80211_hw *hw, int index, struct sk_buff *skb) wmb(); tx->status = cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED | txstatus); - txq->stats.count++; - txq->stats.len++; + txq->len++; priv->pending_tx_pkts++; txq->tail++; @@ -3818,24 +3816,6 @@ static int mwl8k_conf_tx(struct ieee80211_hw *hw, u16 queue, return rc; } -static int mwl8k_get_tx_stats(struct ieee80211_hw *hw, - struct ieee80211_tx_queue_stats *stats) -{ - struct mwl8k_priv *priv = hw->priv; - struct mwl8k_tx_queue *txq; - int index; - - spin_lock_bh(&priv->tx_lock); - for (index = 0; index < MWL8K_TX_QUEUES; index++) { - txq = priv->txq + index; - memcpy(&stats[index], &txq->stats, - sizeof(struct ieee80211_tx_queue_stats)); - } - spin_unlock_bh(&priv->tx_lock); - - return 0; -} - static int mwl8k_get_stats(struct ieee80211_hw *hw, struct ieee80211_low_level_stats *stats) { @@ -3871,7 +3851,6 @@ static const struct ieee80211_ops mwl8k_ops = { .set_rts_threshold = mwl8k_set_rts_threshold, .sta_notify = mwl8k_sta_notify, .conf_tx = mwl8k_conf_tx, - .get_tx_stats = mwl8k_get_tx_stats, .get_stats = mwl8k_get_stats, .ampdu_action = mwl8k_ampdu_action, }; diff --git a/drivers/net/wireless/p54/main.c b/drivers/net/wireless/p54/main.c index 26428e4c9c60..3fe6366e567c 100644 --- a/drivers/net/wireless/p54/main.c +++ b/drivers/net/wireless/p54/main.c @@ -358,16 +358,6 @@ static int p54_get_stats(struct ieee80211_hw *dev, return 0; } -static int p54_get_tx_stats(struct ieee80211_hw *dev, - struct ieee80211_tx_queue_stats *stats) -{ - struct p54_common *priv = dev->priv; - - memcpy(stats, &priv->tx_stats[P54_QUEUE_DATA], - sizeof(stats[0]) * dev->queues); - return 0; -} - static void p54_bss_info_changed(struct ieee80211_hw *dev, struct ieee80211_vif *vif, struct ieee80211_bss_conf *info, @@ -522,7 +512,6 @@ static const struct ieee80211_ops p54_ops = { .configure_filter = p54_configure_filter, .conf_tx = p54_conf_tx, .get_stats = p54_get_stats, - .get_tx_stats = p54_get_tx_stats }; struct ieee80211_hw *p54_init_common(size_t priv_data_len) diff --git a/drivers/net/wireless/p54/p54.h b/drivers/net/wireless/p54/p54.h index 1afc39410e85..43a3b2ead81a 100644 --- a/drivers/net/wireless/p54/p54.h +++ b/drivers/net/wireless/p54/p54.h @@ -157,6 +157,12 @@ struct p54_led_dev { #endif /* CONFIG_P54_LEDS */ +struct p54_tx_queue_stats { + unsigned int len; + unsigned int limit; + unsigned int count; +}; + struct p54_common { struct ieee80211_hw *hw; struct ieee80211_vif *vif; @@ -183,7 +189,7 @@ struct p54_common { /* (e)DCF / QOS state */ bool use_short_slot; spinlock_t tx_stats_lock; - struct ieee80211_tx_queue_stats tx_stats[8]; + struct p54_tx_queue_stats tx_stats[8]; struct p54_edcf_queue_param qos_params[8]; /* Radio data */ diff --git a/drivers/net/wireless/p54/txrx.c b/drivers/net/wireless/p54/txrx.c index b6dda2b27fb5..0e8f69461ffe 100644 --- a/drivers/net/wireless/p54/txrx.c +++ b/drivers/net/wireless/p54/txrx.c @@ -183,7 +183,7 @@ static int p54_tx_qos_accounting_alloc(struct p54_common *priv, struct sk_buff *skb, const u16 p54_queue) { - struct ieee80211_tx_queue_stats *queue; + struct p54_tx_queue_stats *queue; unsigned long flags; if (WARN_ON(p54_queue > P54_QUEUE_NUM)) diff --git a/drivers/net/wireless/rt2x00/rt2400pci.c b/drivers/net/wireless/rt2x00/rt2400pci.c index aa579eb8723f..108982762d45 100644 --- a/drivers/net/wireless/rt2x00/rt2400pci.c +++ b/drivers/net/wireless/rt2x00/rt2400pci.c @@ -1561,7 +1561,6 @@ static const struct ieee80211_ops rt2400pci_mac80211_ops = { .get_stats = rt2x00mac_get_stats, .bss_info_changed = rt2x00mac_bss_info_changed, .conf_tx = rt2400pci_conf_tx, - .get_tx_stats = rt2x00mac_get_tx_stats, .get_tsf = rt2400pci_get_tsf, .tx_last_beacon = rt2400pci_tx_last_beacon, .rfkill_poll = rt2x00mac_rfkill_poll, diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c index 77ee1df7933f..f6440bb0e5f6 100644 --- a/drivers/net/wireless/rt2x00/rt2500pci.c +++ b/drivers/net/wireless/rt2x00/rt2500pci.c @@ -1859,7 +1859,6 @@ static const struct ieee80211_ops rt2500pci_mac80211_ops = { .get_stats = rt2x00mac_get_stats, .bss_info_changed = rt2x00mac_bss_info_changed, .conf_tx = rt2x00mac_conf_tx, - .get_tx_stats = rt2x00mac_get_tx_stats, .get_tsf = rt2500pci_get_tsf, .tx_last_beacon = rt2500pci_tx_last_beacon, .rfkill_poll = rt2x00mac_rfkill_poll, diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c index 9e6f865c57f2..81ca4ec068db 100644 --- a/drivers/net/wireless/rt2x00/rt2500usb.c +++ b/drivers/net/wireless/rt2x00/rt2500usb.c @@ -1761,7 +1761,6 @@ static const struct ieee80211_ops rt2500usb_mac80211_ops = { .get_stats = rt2x00mac_get_stats, .bss_info_changed = rt2x00mac_bss_info_changed, .conf_tx = rt2x00mac_conf_tx, - .get_tx_stats = rt2x00mac_get_tx_stats, .rfkill_poll = rt2x00mac_rfkill_poll, }; diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c index 529a37364eb0..a45e027f2d1f 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -2297,7 +2297,6 @@ const struct ieee80211_ops rt2800_mac80211_ops = { .set_rts_threshold = rt2800_set_rts_threshold, .bss_info_changed = rt2x00mac_bss_info_changed, .conf_tx = rt2800_conf_tx, - .get_tx_stats = rt2x00mac_get_tx_stats, .get_tsf = rt2800_get_tsf, .rfkill_poll = rt2x00mac_rfkill_poll, }; diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h index 096da85a66fa..43b70c6e4e9c 100644 --- a/drivers/net/wireless/rt2x00/rt2x00.h +++ b/drivers/net/wireless/rt2x00/rt2x00.h @@ -1044,8 +1044,6 @@ int rt2x00mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, #endif /* CONFIG_RT2X00_LIB_CRYPTO */ int rt2x00mac_get_stats(struct ieee80211_hw *hw, struct ieee80211_low_level_stats *stats); -int rt2x00mac_get_tx_stats(struct ieee80211_hw *hw, - struct ieee80211_tx_queue_stats *stats); void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_bss_conf *bss_conf, diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c index 00f1f939f1bb..abbd857ec759 100644 --- a/drivers/net/wireless/rt2x00/rt2x00mac.c +++ b/drivers/net/wireless/rt2x00/rt2x00mac.c @@ -555,22 +555,6 @@ int rt2x00mac_get_stats(struct ieee80211_hw *hw, } EXPORT_SYMBOL_GPL(rt2x00mac_get_stats); -int rt2x00mac_get_tx_stats(struct ieee80211_hw *hw, - struct ieee80211_tx_queue_stats *stats) -{ - struct rt2x00_dev *rt2x00dev = hw->priv; - unsigned int i; - - for (i = 0; i < rt2x00dev->ops->tx_queues; i++) { - stats[i].len = rt2x00dev->tx[i].length; - stats[i].limit = rt2x00dev->tx[i].limit; - stats[i].count = rt2x00dev->tx[i].count; - } - - return 0; -} -EXPORT_SYMBOL_GPL(rt2x00mac_get_tx_stats); - void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_bss_conf *bss_conf, diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c index 1f97a797bc41..74de53e68b4e 100644 --- a/drivers/net/wireless/rt2x00/rt61pci.c +++ b/drivers/net/wireless/rt2x00/rt61pci.c @@ -2730,7 +2730,6 @@ static const struct ieee80211_ops rt61pci_mac80211_ops = { .get_stats = rt2x00mac_get_stats, .bss_info_changed = rt2x00mac_bss_info_changed, .conf_tx = rt61pci_conf_tx, - .get_tx_stats = rt2x00mac_get_tx_stats, .get_tsf = rt61pci_get_tsf, .rfkill_poll = rt2x00mac_rfkill_poll, }; diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c index a02691294395..3781eb7b4aa0 100644 --- a/drivers/net/wireless/rt2x00/rt73usb.c +++ b/drivers/net/wireless/rt2x00/rt73usb.c @@ -2245,7 +2245,6 @@ static const struct ieee80211_ops rt73usb_mac80211_ops = { .get_stats = rt2x00mac_get_stats, .bss_info_changed = rt2x00mac_bss_info_changed, .conf_tx = rt73usb_conf_tx, - .get_tx_stats = rt2x00mac_get_tx_stats, .get_tsf = rt73usb_get_tsf, .rfkill_poll = rt2x00mac_rfkill_poll, }; diff --git a/drivers/net/wireless/wl12xx/wl1251_main.c b/drivers/net/wireless/wl12xx/wl1251_main.c index a717dde4822e..24ae6a360ac8 100644 --- a/drivers/net/wireless/wl12xx/wl1251_main.c +++ b/drivers/net/wireless/wl12xx/wl1251_main.c @@ -1144,9 +1144,10 @@ static int wl1251_op_conf_tx(struct ieee80211_hw *hw, u16 queue, if (ret < 0) goto out; + /* mac80211 uses units of 32 usec */ ret = wl1251_acx_ac_cfg(wl, wl1251_tx_get_queue(queue), params->cw_min, params->cw_max, - params->aifs, params->txop); + params->aifs, params->txop * 32); if (ret < 0) goto out_sleep; diff --git a/drivers/ssb/driver_mipscore.c b/drivers/ssb/driver_mipscore.c index 3c6feed46f6e..97efce184a8f 100644 --- a/drivers/ssb/driver_mipscore.c +++ b/drivers/ssb/driver_mipscore.c @@ -270,7 +270,6 @@ void ssb_mipscore_init(struct ssb_mipscore *mcore) set_irq(dev, irq++); } break; - /* fallthrough */ case SSB_DEV_PCI: case SSB_DEV_ETHERNET: case SSB_DEV_ETHERNET_GBIT: @@ -281,6 +280,10 @@ void ssb_mipscore_init(struct ssb_mipscore *mcore) set_irq(dev, irq++); break; } + /* fallthrough */ + case SSB_DEV_EXTIF: + set_irq(dev, 0); + break; } } ssb_dprintk(KERN_INFO PFX "after irq reconfiguration\n"); diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c index 5681ebed9c65..03dfd27c4bfb 100644 --- a/drivers/ssb/main.c +++ b/drivers/ssb/main.c @@ -494,8 +494,7 @@ static int ssb_devices_register(struct ssb_bus *bus) #endif break; case SSB_BUSTYPE_SDIO: -#ifdef CONFIG_SSB_SDIO - sdev->irq = bus->host_sdio->dev.irq; +#ifdef CONFIG_SSB_SDIOHOST dev->parent = &bus->host_sdio->dev; #endif break; diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index a3f0a7ed31ac..5b3569b2a74c 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -1561,37 +1561,82 @@ ieee80211_get_response_rate(struct ieee80211_supported_band *sband, * Documentation in Documentation/networking/radiotap-headers.txt */ +struct radiotap_align_size { + uint8_t align:4, size:4; +}; + +struct ieee80211_radiotap_namespace { + const struct radiotap_align_size *align_size; + int n_bits; + uint32_t oui; + uint8_t subns; +}; + +struct ieee80211_radiotap_vendor_namespaces { + const struct ieee80211_radiotap_namespace *ns; + int n_ns; +}; + /** * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args - * @rtheader: pointer to the radiotap header we are walking through - * @max_length: length of radiotap header in cpu byte ordering - * @this_arg_index: IEEE80211_RADIOTAP_... index of current arg - * @this_arg: pointer to current radiotap arg - * @arg_index: internal next argument index - * @arg: internal next argument pointer - * @next_bitmap: internal pointer to next present u32 - * @bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present + * @this_arg_index: index of current arg, valid after each successful call + * to ieee80211_radiotap_iterator_next() + * @this_arg: pointer to current radiotap arg; it is valid after each + * call to ieee80211_radiotap_iterator_next() but also after + * ieee80211_radiotap_iterator_init() where it will point to + * the beginning of the actual data portion + * @this_arg_size: length of the current arg, for convenience + * @current_namespace: pointer to the current namespace definition + * (or internally %NULL if the current namespace is unknown) + * @is_radiotap_ns: indicates whether the current namespace is the default + * radiotap namespace or not + * + * @overrides: override standard radiotap fields + * @n_overrides: number of overrides + * + * @_rtheader: pointer to the radiotap header we are walking through + * @_max_length: length of radiotap header in cpu byte ordering + * @_arg_index: next argument index + * @_arg: next argument pointer + * @_next_bitmap: internal pointer to next present u32 + * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present + * @_vns: vendor namespace definitions + * @_next_ns_data: beginning of the next namespace's data + * @_reset_on_ext: internal; reset the arg index to 0 when going to the + * next bitmap word + * + * Describes the radiotap parser state. Fields prefixed with an underscore + * must not be used by users of the parser, only by the parser internally. */ struct ieee80211_radiotap_iterator { - struct ieee80211_radiotap_header *rtheader; - int max_length; + struct ieee80211_radiotap_header *_rtheader; + const struct ieee80211_radiotap_vendor_namespaces *_vns; + const struct ieee80211_radiotap_namespace *current_namespace; + + unsigned char *_arg, *_next_ns_data; + uint32_t *_next_bitmap; + + unsigned char *this_arg; int this_arg_index; - u8 *this_arg; + int this_arg_size; - int arg_index; - u8 *arg; - __le32 *next_bitmap; - u32 bitmap_shifter; + int is_radiotap_ns; + + int _max_length; + int _arg_index; + uint32_t _bitmap_shifter; + int _reset_on_ext; }; extern int ieee80211_radiotap_iterator_init( - struct ieee80211_radiotap_iterator *iterator, - struct ieee80211_radiotap_header *radiotap_header, - int max_length); + struct ieee80211_radiotap_iterator *iterator, + struct ieee80211_radiotap_header *radiotap_header, + int max_length, const struct ieee80211_radiotap_vendor_namespaces *vns); extern int ieee80211_radiotap_iterator_next( - struct ieee80211_radiotap_iterator *iterator); + struct ieee80211_radiotap_iterator *iterator); + extern const unsigned char rfc1042_header[6]; extern const unsigned char bridge_tunnel_header[6]; diff --git a/include/net/ieee80211_radiotap.h b/include/net/ieee80211_radiotap.h index 9d3d86aaccbb..af49f8ab7f81 100644 --- a/include/net/ieee80211_radiotap.h +++ b/include/net/ieee80211_radiotap.h @@ -198,6 +198,10 @@ enum ieee80211_radiotap_type { IEEE80211_RADIOTAP_TX_FLAGS = 15, IEEE80211_RADIOTAP_RTS_RETRIES = 16, IEEE80211_RADIOTAP_DATA_RETRIES = 17, + + /* valid in every it_present bitmap, even vendor namespaces */ + IEEE80211_RADIOTAP_RADIOTAP_NAMESPACE = 29, + IEEE80211_RADIOTAP_VENDOR_NAMESPACE = 30, IEEE80211_RADIOTAP_EXT = 31 }; diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 74ccf30fdf8e..314e98173166 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -117,19 +117,6 @@ struct ieee80211_tx_queue_params { bool uapsd; }; -/** - * struct ieee80211_tx_queue_stats - transmit queue statistics - * - * @len: number of packets in queue - * @limit: queue length limit - * @count: number of frames sent - */ -struct ieee80211_tx_queue_stats { - unsigned int len; - unsigned int limit; - unsigned int count; -}; - struct ieee80211_low_level_stats { unsigned int dot11ACKFailureCount; unsigned int dot11RTSFailureCount; @@ -814,7 +801,7 @@ enum set_key_cmd { * mac80211, any ieee80211_sta pointer you get access to must * either be protected by rcu_read_lock() explicitly or implicitly, * or you must take good care to not use such a pointer after a - * call to your sta_notify callback that removed it. + * call to your sta_remove callback that removed it. * * @addr: MAC address * @aid: AID we assigned to the station if we're an AP @@ -840,8 +827,8 @@ struct ieee80211_sta { * indicates addition and removal of a station to station table, * or if a associated station made a power state transition. * - * @STA_NOTIFY_ADD: a station was added to the station table - * @STA_NOTIFY_REMOVE: a station being removed from the station table + * @STA_NOTIFY_ADD: (DEPRECATED) a station was added to the station table + * @STA_NOTIFY_REMOVE: (DEPRECATED) a station being removed from the station table * @STA_NOTIFY_SLEEP: a station is now sleeping * @STA_NOTIFY_AWAKE: a sleeping station woke up */ @@ -958,6 +945,11 @@ enum ieee80211_tkip_key_type { * Hardware supports Unscheduled Automatic Power Save Delivery * (U-APSD) in managed mode. The mode is configured with * conf_tx() operation. + * + * @IEEE80211_HW_REPORTS_TX_ACK_STATUS: + * Hardware can provide ack status reports of Tx frames to + * the stack. + * */ enum ieee80211_hw_flags { IEEE80211_HW_HAS_RATE_CONTROL = 1<<0, @@ -978,6 +970,7 @@ enum ieee80211_hw_flags { IEEE80211_HW_SUPPORTS_STATIC_SMPS = 1<<15, IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS = 1<<16, IEEE80211_HW_SUPPORTS_UAPSD = 1<<17, + IEEE80211_HW_REPORTS_TX_ACK_STATUS = 1<<18, }; /** @@ -1534,22 +1527,20 @@ enum ieee80211_ampdu_mlme_action { * @set_rts_threshold: Configuration of RTS threshold (if device needs it) * The callback can sleep. * - * @sta_notify: Notifies low level driver about addition, removal or power - * state transition of an associated station, AP, IBSS/WDS/mesh peer etc. - * Must be atomic. + * @sta_add: Notifies low level driver about addition of an associated station, + * AP, IBSS/WDS/mesh peer etc. This callback can sleep. + * + * @sta_remove: Notifies low level driver about removal of an associated + * station, AP, IBSS/WDS/mesh peer etc. This callback can sleep. + * + * @sta_notify: Notifies low level driver about power state transition of an + * associated station, AP, IBSS/WDS/mesh peer etc. Must be atomic. * * @conf_tx: Configure TX queue parameters (EDCF (aifs, cw_min, cw_max), * bursting) for a hardware TX queue. * Returns a negative error code on failure. * The callback can sleep. * - * @get_tx_stats: Get statistics of the current TX queue status. This is used - * to get number of currently queued packets (queue length), maximum queue - * size (limit), and total number of packets sent using each TX queue - * (count). The 'stats' pointer points to an array that has hw->queues - * items. - * The callback must be atomic. - * * @get_tsf: Get the current TSF timer value from firmware/hardware. Currently, * this is only used for IBSS mode BSSID merging and debugging. Is not a * required function. @@ -1635,12 +1626,14 @@ struct ieee80211_ops { void (*get_tkip_seq)(struct ieee80211_hw *hw, u8 hw_key_idx, u32 *iv32, u16 *iv16); int (*set_rts_threshold)(struct ieee80211_hw *hw, u32 value); + int (*sta_add)(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + struct ieee80211_sta *sta); + int (*sta_remove)(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + struct ieee80211_sta *sta); void (*sta_notify)(struct ieee80211_hw *hw, struct ieee80211_vif *vif, enum sta_notify_cmd, struct ieee80211_sta *sta); int (*conf_tx)(struct ieee80211_hw *hw, u16 queue, const struct ieee80211_tx_queue_params *params); - int (*get_tx_stats)(struct ieee80211_hw *hw, - struct ieee80211_tx_queue_stats *stats); u64 (*get_tsf)(struct ieee80211_hw *hw); void (*set_tsf)(struct ieee80211_hw *hw, u64 tsf); void (*reset_tsf)(struct ieee80211_hw *hw); diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c index 718fbcff84d2..5538e1b4a697 100644 --- a/net/mac80211/agg-tx.c +++ b/net/mac80211/agg-tx.c @@ -237,6 +237,14 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid) sdata->vif.type != NL80211_IFTYPE_AP) return -EINVAL; + if (test_sta_flags(sta, WLAN_STA_DISASSOC)) { +#ifdef CONFIG_MAC80211_HT_DEBUG + printk(KERN_DEBUG "Disassociation is in progress. " + "Denying BA session request\n"); +#endif + return -EINVAL; + } + if (test_sta_flags(sta, WLAN_STA_SUSPEND)) { #ifdef CONFIG_MAC80211_HT_DEBUG printk(KERN_DEBUG "Suspend in progress. " diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index facf233843e0..e1731b7c2523 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -515,6 +515,8 @@ static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata, if (old) memcpy(new->tail, old->tail, new_tail_len); + sdata->vif.bss_conf.dtim_period = new->dtim_period; + rcu_assign_pointer(sdata->u.ap.beacon, new); synchronize_rcu(); @@ -747,9 +749,7 @@ static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN || sdata->vif.type == NL80211_IFTYPE_AP; - rcu_read_lock(); - - err = sta_info_insert(sta); + err = sta_info_insert_rcu(sta); if (err) { rcu_read_unlock(); return err; @@ -768,26 +768,13 @@ static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, { struct ieee80211_local *local = wiphy_priv(wiphy); struct ieee80211_sub_if_data *sdata; - struct sta_info *sta; sdata = IEEE80211_DEV_TO_SUB_IF(dev); - if (mac) { - rcu_read_lock(); - - sta = sta_info_get_bss(sdata, mac); - if (!sta) { - rcu_read_unlock(); - return -ENOENT; - } - - sta_info_unlink(&sta); - rcu_read_unlock(); - - sta_info_destroy(sta); - } else - sta_info_flush(local, sdata); + if (mac) + return sta_info_destroy_addr_bss(sdata, mac); + sta_info_flush(local, sdata); return 0; } diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c index b3bc32b62a5a..637929b65ccc 100644 --- a/net/mac80211/debugfs.c +++ b/net/mac80211/debugfs.c @@ -250,6 +250,38 @@ static const struct file_operations uapsd_max_sp_len_ops = { .open = mac80211_open_file_generic }; +static ssize_t channel_type_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ieee80211_local *local = file->private_data; + const char *buf; + + switch (local->hw.conf.channel_type) { + case NL80211_CHAN_NO_HT: + buf = "no ht\n"; + break; + case NL80211_CHAN_HT20: + buf = "ht20\n"; + break; + case NL80211_CHAN_HT40MINUS: + buf = "ht40-\n"; + break; + case NL80211_CHAN_HT40PLUS: + buf = "ht40+\n"; + break; + default: + buf = "???"; + break; + } + + return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf)); +} + +static const struct file_operations channel_type_ops = { + .read = channel_type_read, + .open = mac80211_open_file_generic +}; + static ssize_t queues_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { @@ -408,6 +440,7 @@ void debugfs_hw_add(struct ieee80211_local *local) DEBUGFS_ADD(noack); DEBUGFS_ADD(uapsd_queues); DEBUGFS_ADD(uapsd_max_sp_len); + DEBUGFS_ADD(channel_type); statsd = debugfs_create_dir("statistics", phyd); diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h index 6c31f38ac7f5..c3d844093a2f 100644 --- a/net/mac80211/driver-ops.h +++ b/net/mac80211/driver-ops.h @@ -243,6 +243,40 @@ static inline void drv_sta_notify(struct ieee80211_local *local, trace_drv_sta_notify(local, sdata, cmd, sta); } +static inline int drv_sta_add(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + struct ieee80211_sta *sta) +{ + int ret = 0; + + might_sleep(); + + if (local->ops->sta_add) + ret = local->ops->sta_add(&local->hw, &sdata->vif, sta); + else if (local->ops->sta_notify) + local->ops->sta_notify(&local->hw, &sdata->vif, + STA_NOTIFY_ADD, sta); + + trace_drv_sta_add(local, sdata, sta, ret); + + return ret; +} + +static inline void drv_sta_remove(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + struct ieee80211_sta *sta) +{ + might_sleep(); + + if (local->ops->sta_remove) + local->ops->sta_remove(&local->hw, &sdata->vif, sta); + else if (local->ops->sta_notify) + local->ops->sta_notify(&local->hw, &sdata->vif, + STA_NOTIFY_REMOVE, sta); + + trace_drv_sta_remove(local, sdata, sta); +} + static inline int drv_conf_tx(struct ieee80211_local *local, u16 queue, const struct ieee80211_tx_queue_params *params) { @@ -256,14 +290,6 @@ static inline int drv_conf_tx(struct ieee80211_local *local, u16 queue, return ret; } -static inline int drv_get_tx_stats(struct ieee80211_local *local, - struct ieee80211_tx_queue_stats *stats) -{ - int ret = local->ops->get_tx_stats(&local->hw, stats); - trace_drv_get_tx_stats(local, stats, ret); - return ret; -} - static inline u64 drv_get_tsf(struct ieee80211_local *local) { u64 ret = -1ULL; diff --git a/net/mac80211/driver-trace.h b/net/mac80211/driver-trace.h index 502424b2538a..41baf730a5c7 100644 --- a/net/mac80211/driver-trace.h +++ b/net/mac80211/driver-trace.h @@ -545,59 +545,88 @@ TRACE_EVENT(drv_sta_notify, ) ); -TRACE_EVENT(drv_conf_tx, - TP_PROTO(struct ieee80211_local *local, u16 queue, - const struct ieee80211_tx_queue_params *params, - int ret), +TRACE_EVENT(drv_sta_add, + TP_PROTO(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + struct ieee80211_sta *sta, int ret), - TP_ARGS(local, queue, params, ret), + TP_ARGS(local, sdata, sta, ret), TP_STRUCT__entry( LOCAL_ENTRY - __field(u16, queue) - __field(u16, txop) - __field(u16, cw_min) - __field(u16, cw_max) - __field(u8, aifs) + VIF_ENTRY + STA_ENTRY __field(int, ret) ), TP_fast_assign( LOCAL_ASSIGN; - __entry->queue = queue; + VIF_ASSIGN; + STA_ASSIGN; __entry->ret = ret; - __entry->txop = params->txop; - __entry->cw_max = params->cw_max; - __entry->cw_min = params->cw_min; - __entry->aifs = params->aifs; ), TP_printk( - LOCAL_PR_FMT " queue:%d ret:%d", - LOCAL_PR_ARG, __entry->queue, __entry->ret + LOCAL_PR_FMT VIF_PR_FMT STA_PR_FMT " ret:%d", + LOCAL_PR_ARG, VIF_PR_ARG, STA_PR_ARG, __entry->ret ) ); -TRACE_EVENT(drv_get_tx_stats, +TRACE_EVENT(drv_sta_remove, TP_PROTO(struct ieee80211_local *local, - struct ieee80211_tx_queue_stats *stats, + struct ieee80211_sub_if_data *sdata, + struct ieee80211_sta *sta), + + TP_ARGS(local, sdata, sta), + + TP_STRUCT__entry( + LOCAL_ENTRY + VIF_ENTRY + STA_ENTRY + ), + + TP_fast_assign( + LOCAL_ASSIGN; + VIF_ASSIGN; + STA_ASSIGN; + ), + + TP_printk( + LOCAL_PR_FMT VIF_PR_FMT STA_PR_FMT, + LOCAL_PR_ARG, VIF_PR_ARG, STA_PR_ARG + ) +); + +TRACE_EVENT(drv_conf_tx, + TP_PROTO(struct ieee80211_local *local, u16 queue, + const struct ieee80211_tx_queue_params *params, int ret), - TP_ARGS(local, stats, ret), + TP_ARGS(local, queue, params, ret), TP_STRUCT__entry( LOCAL_ENTRY + __field(u16, queue) + __field(u16, txop) + __field(u16, cw_min) + __field(u16, cw_max) + __field(u8, aifs) __field(int, ret) ), TP_fast_assign( LOCAL_ASSIGN; + __entry->queue = queue; __entry->ret = ret; + __entry->txop = params->txop; + __entry->cw_max = params->cw_max; + __entry->cw_min = params->cw_min; + __entry->aifs = params->aifs; ), TP_printk( - LOCAL_PR_FMT " ret:%d", - LOCAL_PR_ARG, __entry->ret + LOCAL_PR_FMT " queue:%d ret:%d", + LOCAL_PR_ARG, __entry->queue, __entry->ret ) ); diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index f95750b423e3..f3e942486749 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -275,10 +275,12 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, (unsigned long long) supp_rates, (unsigned long long) sta->sta.supp_rates[band]); #endif - } else - ieee80211_ibss_add_sta(sdata, mgmt->bssid, mgmt->sa, supp_rates); - - rcu_read_unlock(); + rcu_read_unlock(); + } else { + rcu_read_unlock(); + ieee80211_ibss_add_sta(sdata, mgmt->bssid, mgmt->sa, + supp_rates, GFP_KERNEL); + } } bss = ieee80211_bss_info_update(local, rx_status, mgmt, len, elems, @@ -368,7 +370,8 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, sdata->name, mgmt->bssid); #endif ieee80211_sta_join_ibss(sdata, bss); - ieee80211_ibss_add_sta(sdata, mgmt->bssid, mgmt->sa, supp_rates); + ieee80211_ibss_add_sta(sdata, mgmt->bssid, mgmt->sa, + supp_rates, GFP_KERNEL); } put_bss: @@ -381,7 +384,8 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, * must be callable in atomic context. */ struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, - u8 *bssid,u8 *addr, u32 supp_rates) + u8 *bssid,u8 *addr, u32 supp_rates, + gfp_t gfp) { struct ieee80211_if_ibss *ifibss = &sdata->u.ibss; struct ieee80211_local *local = sdata->local; @@ -410,7 +414,7 @@ struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, wiphy_name(local->hw.wiphy), addr, sdata->name); #endif - sta = sta_info_alloc(sdata, addr, GFP_ATOMIC); + sta = sta_info_alloc(sdata, addr, gfp); if (!sta) return NULL; @@ -422,9 +426,9 @@ struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, rate_control_rate_init(sta); + /* If it fails, maybe we raced another insertion? */ if (sta_info_insert(sta)) - return NULL; - + return sta_info_get(sdata, addr); return sta; } @@ -652,7 +656,7 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata, } if (pos[1] != 0 && (pos[1] != ifibss->ssid_len || - !memcmp(pos + 2, ifibss->ssid, ifibss->ssid_len))) { + memcmp(pos + 2, ifibss->ssid, ifibss->ssid_len))) { /* Ignore ProbeReq for foreign SSID */ return; } diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 3067fbd69d63..9dd98b674cbc 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -316,6 +316,7 @@ enum ieee80211_sta_flags { IEEE80211_STA_CSA_RECEIVED = BIT(5), IEEE80211_STA_MFP_ENABLED = BIT(6), IEEE80211_STA_UAPSD_ENABLED = BIT(7), + IEEE80211_STA_NULLFUNC_ACKED = BIT(8), }; struct ieee80211_if_managed { @@ -688,15 +689,18 @@ struct ieee80211_local { /* Station data */ /* - * The lock only protects the list, hash, timer and counter - * against manipulation, reads are done in RCU. Additionally, - * the lock protects each BSS's TIM bitmap. + * The mutex only protects the list and counter, + * reads are done in RCU. + * Additionally, the lock protects the hash table, + * the pending list and each BSS's TIM bitmap. */ + struct mutex sta_mtx; spinlock_t sta_lock; unsigned long num_sta; - struct list_head sta_list; + struct list_head sta_list, sta_pending_list; struct sta_info *sta_hash[STA_HASH_SIZE]; struct timer_list sta_cleanup; + struct work_struct sta_finish_work; int sta_generation; struct sk_buff_head pending[IEEE80211_MAX_QUEUES]; @@ -770,10 +774,6 @@ struct ieee80211_local { assoc_led_name[32], radio_led_name[32]; #endif -#ifdef CONFIG_MAC80211_DEBUGFS - struct work_struct sta_debugfs_add; -#endif - #ifdef CONFIG_MAC80211_DEBUG_COUNTERS /* TX/RX handler statistics */ unsigned int tx_handlers_drop; @@ -985,7 +985,8 @@ void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata); ieee80211_rx_result ieee80211_ibss_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb); struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, - u8 *bssid, u8 *addr, u32 supp_rates); + u8 *bssid, u8 *addr, u32 supp_rates, + gfp_t gfp); int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata, struct cfg80211_ibss_params *params); int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata); diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c index 7985e5150898..bc4e20e57ff5 100644 --- a/net/mac80211/mesh_plink.c +++ b/net/mac80211/mesh_plink.c @@ -102,7 +102,7 @@ static struct sta_info *mesh_plink_alloc(struct ieee80211_sub_if_data *sdata, if (local->num_sta >= MESH_MAX_PLINKS) return NULL; - sta = sta_info_alloc(sdata, hw_addr, GFP_ATOMIC); + sta = sta_info_alloc(sdata, hw_addr, GFP_KERNEL); if (!sta) return NULL; @@ -236,12 +236,12 @@ void mesh_neighbour_update(u8 *hw_addr, u32 rates, struct ieee80211_sub_if_data sta = sta_info_get(sdata, hw_addr); if (!sta) { + rcu_read_unlock(); + sta = mesh_plink_alloc(sdata, hw_addr, rates); - if (!sta) { - rcu_read_unlock(); + if (!sta) return; - } - if (sta_info_insert(sta)) { + if (sta_info_insert_rcu(sta)) { rcu_read_unlock(); return; } @@ -485,9 +485,11 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m } else if (!sta) { /* ftype == PLINK_OPEN */ u32 rates; + + rcu_read_unlock(); + if (!mesh_plink_free_count(sdata)) { mpl_dbg("Mesh plink error: no more free plinks\n"); - rcu_read_unlock(); return; } @@ -495,10 +497,9 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m sta = mesh_plink_alloc(sdata, mgmt->sa, rates); if (!sta) { mpl_dbg("Mesh plink error: plink table full\n"); - rcu_read_unlock(); return; } - if (sta_info_insert(sta)) { + if (sta_info_insert_rcu(sta)) { rcu_read_unlock(); return; } diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 86c6ad1b058d..bfc4a5070013 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -27,10 +27,6 @@ #include "rate.h" #include "led.h" -#define IEEE80211_AUTH_TIMEOUT (HZ / 5) -#define IEEE80211_AUTH_MAX_TRIES 3 -#define IEEE80211_ASSOC_TIMEOUT (HZ / 5) -#define IEEE80211_ASSOC_MAX_TRIES 3 #define IEEE80211_MAX_PROBE_TRIES 5 /* @@ -438,8 +434,11 @@ static void ieee80211_enable_ps(struct ieee80211_local *local, } else { if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) ieee80211_send_nullfunc(local, sdata, 1); - conf->flags |= IEEE80211_CONF_PS; - ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); + + if (!(local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)) { + conf->flags |= IEEE80211_CONF_PS; + ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); + } } } @@ -545,6 +544,7 @@ void ieee80211_dynamic_ps_enable_work(struct work_struct *work) container_of(work, struct ieee80211_local, dynamic_ps_enable_work); struct ieee80211_sub_if_data *sdata = local->ps_sdata; + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; /* can only happen when PS was just disabled anyway */ if (!sdata) @@ -553,11 +553,16 @@ void ieee80211_dynamic_ps_enable_work(struct work_struct *work) if (local->hw.conf.flags & IEEE80211_CONF_PS) return; - if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) + if ((local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) && + (!(ifmgd->flags & IEEE80211_STA_NULLFUNC_ACKED))) ieee80211_send_nullfunc(local, sdata, 1); - local->hw.conf.flags |= IEEE80211_CONF_PS; - ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); + if (!(local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS) || + (ifmgd->flags & IEEE80211_STA_NULLFUNC_ACKED)) { + ifmgd->flags &= ~IEEE80211_STA_NULLFUNC_ACKED; + local->hw.conf.flags |= IEEE80211_CONF_PS; + ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); + } } void ieee80211_dynamic_ps_timer(unsigned long data) @@ -792,8 +797,10 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata) rcu_read_lock(); sta = sta_info_get(sdata, bssid); - if (sta) + if (sta) { + set_sta_flags(sta, WLAN_STA_DISASSOC); ieee80211_sta_tear_down_BA_sessions(sta); + } rcu_read_unlock(); changed |= ieee80211_reset_erp_info(sdata); @@ -826,19 +833,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata) changed |= BSS_CHANGED_BSSID; ieee80211_bss_info_change_notify(sdata, changed); - rcu_read_lock(); - - sta = sta_info_get(sdata, bssid); - if (!sta) { - rcu_read_unlock(); - return; - } - - sta_info_unlink(&sta); - - rcu_read_unlock(); - - sta_info_destroy(sta); + sta_info_destroy_addr(sdata, bssid); } void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata, @@ -1844,7 +1839,11 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, wk->probe_auth.algorithm = auth_alg; wk->probe_auth.privacy = req->bss->capability & WLAN_CAPABILITY_PRIVACY; - wk->type = IEEE80211_WORK_DIRECT_PROBE; + /* if we already have a probe, don't probe again */ + if (req->bss->proberesp_ies) + wk->type = IEEE80211_WORK_AUTH; + else + wk->type = IEEE80211_WORK_DIRECT_PROBE; wk->chan = req->bss->channel; wk->sdata = sdata; wk->done = ieee80211_probe_auth_done; @@ -1904,6 +1903,7 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, return -ENOMEM; ifmgd->flags &= ~IEEE80211_STA_DISABLE_11N; + ifmgd->flags &= ~IEEE80211_STA_NULLFUNC_ACKED; for (i = 0; i < req->crypto.n_ciphers_pairwise; i++) if (req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_WEP40 || @@ -2007,12 +2007,18 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, mutex_lock(&local->work_mtx); list_for_each_entry(wk, &local->work_list, list) { - if (wk->type != IEEE80211_WORK_DIRECT_PROBE) + if (wk->sdata != sdata) + continue; + + if (wk->type != IEEE80211_WORK_DIRECT_PROBE && + wk->type != IEEE80211_WORK_AUTH) continue; + if (memcmp(req->bss->bssid, wk->filter_ta, ETH_ALEN)) continue; - not_auth_yet = true; - list_del(&wk->list); + + not_auth_yet = wk->type == IEEE80211_WORK_DIRECT_PROBE; + list_del_rcu(&wk->list); free_work(wk); break; } diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c index 47f818959ad7..0e64484e861c 100644 --- a/net/mac80211/pm.c +++ b/net/mac80211/pm.c @@ -11,7 +11,6 @@ int __ieee80211_suspend(struct ieee80211_hw *hw) struct ieee80211_local *local = hw_to_local(hw); struct ieee80211_sub_if_data *sdata; struct sta_info *sta; - unsigned long flags; ieee80211_scan_cancel(local); @@ -55,22 +54,21 @@ int __ieee80211_suspend(struct ieee80211_hw *hw) rcu_read_unlock(); /* remove STAs */ - spin_lock_irqsave(&local->sta_lock, flags); + mutex_lock(&local->sta_mtx); list_for_each_entry(sta, &local->sta_list, list) { - if (local->ops->sta_notify) { + if (sta->uploaded) { sdata = sta->sdata; if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) sdata = container_of(sdata->bss, struct ieee80211_sub_if_data, u.ap); - drv_sta_notify(local, sdata, STA_NOTIFY_REMOVE, - &sta->sta); + drv_sta_remove(local, sdata, &sta->sta); } mesh_plink_quiesce(sta); } - spin_unlock_irqrestore(&local->sta_lock, flags); + mutex_unlock(&local->sta_mtx); /* remove all interfaces */ list_for_each_entry(sdata, &local->interfaces, list) { diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c index c74b7c85403c..99ab24cc9783 100644 --- a/net/mac80211/rate.c +++ b/net/mac80211/rate.c @@ -145,7 +145,7 @@ static const struct file_operations rcname_ops = { }; #endif -struct rate_control_ref *rate_control_alloc(const char *name, +static struct rate_control_ref *rate_control_alloc(const char *name, struct ieee80211_local *local) { struct dentry *debugfsdir = NULL; diff --git a/net/mac80211/rate.h b/net/mac80211/rate.h index 998cf7a935b6..b6108bca96d4 100644 --- a/net/mac80211/rate.h +++ b/net/mac80211/rate.h @@ -26,10 +26,6 @@ struct rate_control_ref { struct kref kref; }; -/* Get a reference to the rate control algorithm. If `name' is NULL, get the - * first available algorithm. */ -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 sta_info *sta, struct ieee80211_tx_rate_control *txrc); @@ -116,7 +112,8 @@ static inline void rate_control_remove_sta_debugfs(struct sta_info *sta) #endif } -/* functions for rate control related to a device */ +/* Get a reference to the rate control algorithm. If `name' is NULL, get the + * first available algorithm. */ int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local, const char *name); void rate_control_deinitialize(struct ieee80211_local *local); diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 5709307fcb9b..c9755f3d986c 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -1719,6 +1719,7 @@ static ieee80211_rx_result debug_noinline ieee80211_rx_h_data(struct ieee80211_rx_data *rx) { struct ieee80211_sub_if_data *sdata = rx->sdata; + struct ieee80211_local *local = rx->local; struct net_device *dev = sdata->dev; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data; __le16 fc = hdr->frame_control; @@ -1750,6 +1751,13 @@ ieee80211_rx_h_data(struct ieee80211_rx_data *rx) dev->stats.rx_packets++; dev->stats.rx_bytes += rx->skb->len; + if (ieee80211_is_data(hdr->frame_control) && + !is_multicast_ether_addr(hdr->addr1) && + local->hw.conf.dynamic_ps_timeout > 0 && local->ps_sdata) { + mod_timer(&local->dynamic_ps_timer, jiffies + + msecs_to_jiffies(local->hw.conf.dynamic_ps_timeout)); + } + ieee80211_deliver_skb(rx); return RX_QUEUED; @@ -2244,8 +2252,8 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata, rate_idx = 0; /* TODO: HT rates */ else rate_idx = status->rate_idx; - rx->sta = ieee80211_ibss_add_sta(sdata, bssid, hdr->addr2, - BIT(rate_idx)); + rx->sta = ieee80211_ibss_add_sta(sdata, bssid, + hdr->addr2, BIT(rate_idx), GFP_ATOMIC); } break; case NL80211_IFTYPE_MESH_POINT: diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index bc061f629674..b822dce97867 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -345,6 +345,13 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata, if (local->scan_req) return -EBUSY; + if (!list_empty(&local->work_list)) { + /* wait for the work to finish/time out */ + local->scan_req = req; + local->scan_sdata = sdata; + return 0; + } + if (local->ops->hw_scan) { u8 *ies; @@ -364,29 +371,33 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata, local->hw_scan_req->ie = ies; local->hw_scan_band = 0; + + /* + * After allocating local->hw_scan_req, we must + * go through until ieee80211_prep_hw_scan(), so + * anything that might be changed here and leave + * this function early must not go after this + * allocation. + */ } local->scan_req = req; local->scan_sdata = sdata; - if (!list_empty(&local->work_list)) { - /* wait for the work to finish/time out */ - return 0; - } - if (local->ops->hw_scan) __set_bit(SCAN_HW_SCANNING, &local->scanning); else __set_bit(SCAN_SW_SCANNING, &local->scanning); + /* * Kicking off the scan need not be protected, * only the scan variable stuff, since now * local->scan_req is assigned and other callers * will abort their scan attempts. * - * This avoids getting a scan_mtx -> iflist_mtx - * dependency, so that the scan completed calls - * have more locking freedom. + * This avoids too many locking dependencies + * so that the scan completed calls have more + * locking freedom. */ ieee80211_recalc_idle(local); diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index f735826f055c..211c475f73c6 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -32,49 +32,33 @@ * for faster lookup and a list for iteration. They are managed using * RCU, i.e. access to the list and hash table is protected by RCU. * - * Upon allocating a STA info structure with sta_info_alloc(), the caller owns - * that structure. It must then either destroy it using sta_info_destroy() - * (which is pretty useless) or insert it into the hash table using - * sta_info_insert() which demotes the reference from ownership to a regular - * RCU-protected reference; if the function is called without protection by an - * RCU critical section the reference is instantly invalidated. Note that the - * caller may not do much with the STA info before inserting it, in particular, - * it may not start any mesh peer link management or add encryption keys. + * Upon allocating a STA info structure with sta_info_alloc(), the caller + * owns that structure. It must then insert it into the hash table using + * either sta_info_insert() or sta_info_insert_rcu(); only in the latter + * case (which acquires an rcu read section but must not be called from + * within one) will the pointer still be valid after the call. Note that + * the caller may not do much with the STA info before inserting it, in + * particular, it may not start any mesh peer link management or add + * encryption keys. * * When the insertion fails (sta_info_insert()) returns non-zero), the * structure will have been freed by sta_info_insert()! * - * sta entries are added by mac80211 when you establish a link with a + * Station entries are added by mac80211 when you establish a link with a * peer. This means different things for the different type of interfaces * we support. For a regular station this mean we add the AP sta when we * receive an assocation response from the AP. For IBSS this occurs when - * we receive a probe response or a beacon from target IBSS network. For - * WDS we add the sta for the peer imediately upon device open. When using - * AP mode we add stations for each respective station upon request from - * userspace through nl80211. + * get to know about a peer on the same IBSS. For WDS we add the sta for + * the peer imediately upon device open. When using AP mode we add stations + * for each respective station upon request from userspace through nl80211. * - * Because there are debugfs entries for each station, and adding those - * must be able to sleep, it is also possible to "pin" a station entry, - * that means it can be removed from the hash table but not be freed. - * See the comment in __sta_info_unlink() for more information, this is - * an internal capability only. + * In order to remove a STA info structure, various sta_info_destroy_*() + * calls are available. * - * In order to remove a STA info structure, the caller needs to first - * unlink it (sta_info_unlink()) from the list and hash tables and - * then destroy it; sta_info_destroy() will wait for an RCU grace period - * to elapse before actually freeing it. Due to the pinning and the - * possibility of multiple callers trying to remove the same STA info at - * the same time, sta_info_unlink() can clear the STA info pointer it is - * passed to indicate that the STA info is owned by somebody else now. - * - * If sta_info_unlink() did not clear the pointer then the caller owns - * the STA info structure now and is responsible of destroying it with - * a call to sta_info_destroy(). - * - * In all other cases, there is no concept of ownership on a STA entry, - * each structure is owned by the global hash table/list until it is - * removed. All users of the structure need to be RCU protected so that - * the structure won't be freed before they are done using it. + * There is no concept of ownership on a STA entry, each structure is + * owned by the global hash table/list until it is removed. All users of + * the structure need to be RCU protected so that the structure won't be + * freed before they are done using it. */ /* Caller must hold local->sta_lock */ @@ -185,101 +169,6 @@ static void __sta_info_free(struct ieee80211_local *local, kfree(sta); } -void sta_info_destroy(struct sta_info *sta) -{ - struct ieee80211_local *local; - struct sk_buff *skb; - int i; - - might_sleep(); - - if (!sta) - return; - - local = sta->local; - - cancel_work_sync(&sta->drv_unblock_wk); - - rate_control_remove_sta_debugfs(sta); - ieee80211_sta_debugfs_remove(sta); - -#ifdef CONFIG_MAC80211_MESH - if (ieee80211_vif_is_mesh(&sta->sdata->vif)) - mesh_plink_deactivate(sta); -#endif - - /* - * We have only unlinked the key, and actually destroying it - * may mean it is removed from hardware which requires that - * the key->sta pointer is still valid, so flush the key todo - * list here. - * - * ieee80211_key_todo() will synchronize_rcu() so after this - * nothing can reference this sta struct any more. - */ - ieee80211_key_todo(); - -#ifdef CONFIG_MAC80211_MESH - if (ieee80211_vif_is_mesh(&sta->sdata->vif)) - del_timer_sync(&sta->plink_timer); -#endif - - while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) { - local->total_ps_buffered--; - dev_kfree_skb_any(skb); - } - - while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) - dev_kfree_skb_any(skb); - - for (i = 0; i < STA_TID_NUM; i++) { - struct tid_ampdu_rx *tid_rx; - struct tid_ampdu_tx *tid_tx; - - spin_lock_bh(&sta->lock); - tid_rx = sta->ampdu_mlme.tid_rx[i]; - /* Make sure timer won't free the tid_rx struct, see below */ - if (tid_rx) - tid_rx->shutdown = true; - - spin_unlock_bh(&sta->lock); - - /* - * Outside spinlock - shutdown is true now so that the timer - * won't free tid_rx, we have to do that now. Can't let the - * timer do it because we have to sync the timer outside the - * lock that it takes itself. - */ - if (tid_rx) { - del_timer_sync(&tid_rx->session_timer); - kfree(tid_rx); - } - - /* - * No need to do such complications for TX agg sessions, the - * path leading to freeing the tid_tx struct goes via a call - * from the driver, and thus needs to look up the sta struct - * again, which cannot be found when we get here. Hence, we - * just need to delete the timer and free the aggregation - * info; we won't be telling the peer about it then but that - * doesn't matter if we're not talking to it again anyway. - */ - tid_tx = sta->ampdu_mlme.tid_tx[i]; - if (tid_tx) { - del_timer_sync(&tid_tx->addba_resp_timer); - /* - * STA removed while aggregation session being - * started? Bit odd, but purge frames anyway. - */ - skb_queue_purge(&tid_tx->pending); - kfree(tid_tx); - } - } - - __sta_info_free(local, sta); -} - - /* Caller must hold local->sta_lock */ static void sta_info_hash_add(struct ieee80211_local *local, struct sta_info *sta) @@ -376,7 +265,7 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata, return sta; } -int sta_info_insert(struct sta_info *sta) +static int sta_info_finish_insert(struct sta_info *sta, bool async) { struct ieee80211_local *local = sta->local; struct ieee80211_sub_if_data *sdata = sta->sdata; @@ -384,6 +273,91 @@ int sta_info_insert(struct sta_info *sta) unsigned long flags; int err = 0; + WARN_ON(!mutex_is_locked(&local->sta_mtx)); + + /* notify driver */ + if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) + sdata = container_of(sdata->bss, + struct ieee80211_sub_if_data, + u.ap); + err = drv_sta_add(local, sdata, &sta->sta); + if (err) { + if (!async) + return err; + printk(KERN_DEBUG "%s: failed to add IBSS STA %pM to driver (%d)" + " - keeping it anyway.\n", + sdata->name, sta->sta.addr, err); + } else { + sta->uploaded = true; +#ifdef CONFIG_MAC80211_VERBOSE_DEBUG + if (async) + printk(KERN_DEBUG "%s: Finished adding IBSS STA %pM\n", + wiphy_name(local->hw.wiphy), sta->sta.addr); +#endif + } + + sdata = sta->sdata; + + if (!async) { + local->num_sta++; + local->sta_generation++; + smp_mb(); + + /* make the station visible */ + spin_lock_irqsave(&local->sta_lock, flags); + sta_info_hash_add(local, sta); + spin_unlock_irqrestore(&local->sta_lock, flags); + } + + list_add(&sta->list, &local->sta_list); + + ieee80211_sta_debugfs_add(sta); + rate_control_add_sta_debugfs(sta); + + sinfo.filled = 0; + sinfo.generation = local->sta_generation; + cfg80211_new_sta(sdata->dev, sta->sta.addr, &sinfo, GFP_KERNEL); + + + return 0; +} + +static void sta_info_finish_pending(struct ieee80211_local *local) +{ + struct sta_info *sta; + unsigned long flags; + + spin_lock_irqsave(&local->sta_lock, flags); + while (!list_empty(&local->sta_pending_list)) { + sta = list_first_entry(&local->sta_pending_list, + struct sta_info, list); + list_del(&sta->list); + spin_unlock_irqrestore(&local->sta_lock, flags); + + sta_info_finish_insert(sta, true); + + spin_lock_irqsave(&local->sta_lock, flags); + } + spin_unlock_irqrestore(&local->sta_lock, flags); +} + +static void sta_info_finish_work(struct work_struct *work) +{ + struct ieee80211_local *local = + container_of(work, struct ieee80211_local, sta_finish_work); + + mutex_lock(&local->sta_mtx); + sta_info_finish_pending(local); + mutex_unlock(&local->sta_mtx); +} + +int sta_info_insert_rcu(struct sta_info *sta) __acquires(RCU) +{ + struct ieee80211_local *local = sta->local; + struct ieee80211_sub_if_data *sdata = sta->sdata; + unsigned long flags; + int err = 0; + /* * Can't be a WARN_ON because it can be triggered through a race: * something inserts a STA (on one CPU) without holding the RTNL @@ -391,36 +365,87 @@ int sta_info_insert(struct sta_info *sta) */ if (unlikely(!ieee80211_sdata_running(sdata))) { err = -ENETDOWN; + rcu_read_lock(); goto out_free; } if (WARN_ON(compare_ether_addr(sta->sta.addr, sdata->vif.addr) == 0 || is_multicast_ether_addr(sta->sta.addr))) { err = -EINVAL; + rcu_read_lock(); goto out_free; } + /* + * In ad-hoc mode, we sometimes need to insert stations + * from tasklet context from the RX path. To avoid races, + * always do so in that case -- see the comment below. + */ + if (sdata->vif.type == NL80211_IFTYPE_ADHOC) { + spin_lock_irqsave(&local->sta_lock, flags); + /* check if STA exists already */ + if (sta_info_get_bss(sdata, sta->sta.addr)) { + spin_unlock_irqrestore(&local->sta_lock, flags); + rcu_read_lock(); + err = -EEXIST; + goto out_free; + } + + local->num_sta++; + local->sta_generation++; + smp_mb(); + sta_info_hash_add(local, sta); + + list_add_tail(&sta->list, &local->sta_pending_list); + + rcu_read_lock(); + spin_unlock_irqrestore(&local->sta_lock, flags); + +#ifdef CONFIG_MAC80211_VERBOSE_DEBUG + printk(KERN_DEBUG "%s: Added IBSS STA %pM\n", + wiphy_name(local->hw.wiphy), sta->sta.addr); +#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */ + + ieee80211_queue_work(&local->hw, &local->sta_finish_work); + + return 0; + } + + /* + * On first glance, this will look racy, because the code + * below this point, which inserts a station with sleeping, + * unlocks the sta_lock between checking existence in the + * hash table and inserting into it. + * + * However, it is not racy against itself because it keeps + * the mutex locked. It still seems to race against the + * above code that atomically inserts the station... That, + * however, is not true because the above code can only + * be invoked for IBSS interfaces, and the below code will + * not be -- and the two do not race against each other as + * the hash table also keys off the interface. + */ + + might_sleep(); + + mutex_lock(&local->sta_mtx); + spin_lock_irqsave(&local->sta_lock, flags); /* check if STA exists already */ - if (sta_info_get(sdata, sta->sta.addr)) { + if (sta_info_get_bss(sdata, sta->sta.addr)) { spin_unlock_irqrestore(&local->sta_lock, flags); + rcu_read_lock(); err = -EEXIST; goto out_free; } - list_add(&sta->list, &local->sta_list); - local->sta_generation++; - local->num_sta++; - sta_info_hash_add(local, sta); - /* notify driver */ - if (local->ops->sta_notify) { - if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) - sdata = container_of(sdata->bss, - struct ieee80211_sub_if_data, - u.ap); + spin_unlock_irqrestore(&local->sta_lock, flags); - drv_sta_notify(local, sdata, STA_NOTIFY_ADD, &sta->sta); - sdata = sta->sdata; + err = sta_info_finish_insert(sta, false); + if (err) { + mutex_unlock(&local->sta_mtx); + rcu_read_lock(); + goto out_free; } #ifdef CONFIG_MAC80211_VERBOSE_DEBUG @@ -428,22 +453,9 @@ int sta_info_insert(struct sta_info *sta) wiphy_name(local->hw.wiphy), sta->sta.addr); #endif /* CONFIG_MAC80211_VERBOSE_DEBUG */ - spin_unlock_irqrestore(&local->sta_lock, flags); - - sinfo.filled = 0; - sinfo.generation = local->sta_generation; - cfg80211_new_sta(sdata->dev, sta->sta.addr, &sinfo, GFP_ATOMIC); - -#ifdef CONFIG_MAC80211_DEBUGFS - /* - * Debugfs entry adding might sleep, so schedule process - * context task for adding entry for STAs that do not yet - * have one. - * NOTE: due to auto-freeing semantics this may only be done - * if the insertion is successful! - */ - schedule_work(&local->sta_debugfs_add); -#endif + /* move reference to rcu-protected */ + rcu_read_lock(); + mutex_unlock(&local->sta_mtx); if (ieee80211_vif_is_mesh(&sdata->vif)) mesh_accept_plinks_update(sdata); @@ -455,6 +467,15 @@ int sta_info_insert(struct sta_info *sta) return err; } +int sta_info_insert(struct sta_info *sta) +{ + int err = sta_info_insert_rcu(sta); + + rcu_read_unlock(); + + return err; +} + static inline void __bss_tim_set(struct ieee80211_if_ap *bss, u16 aid) { /* @@ -523,108 +544,6 @@ void sta_info_clear_tim_bit(struct sta_info *sta) spin_unlock_irqrestore(&sta->local->sta_lock, flags); } -static void __sta_info_unlink(struct sta_info **sta) -{ - struct ieee80211_local *local = (*sta)->local; - struct ieee80211_sub_if_data *sdata = (*sta)->sdata; - /* - * pull caller's reference if we're already gone. - */ - if (sta_info_hash_del(local, *sta)) { - *sta = NULL; - return; - } - - if ((*sta)->key) { - ieee80211_key_free((*sta)->key); - WARN_ON((*sta)->key); - } - - list_del(&(*sta)->list); - (*sta)->dead = true; - - if (test_and_clear_sta_flags(*sta, - WLAN_STA_PS_STA | WLAN_STA_PS_DRIVER)) { - BUG_ON(!sdata->bss); - - atomic_dec(&sdata->bss->num_sta_ps); - __sta_info_clear_tim_bit(sdata->bss, *sta); - } - - local->num_sta--; - local->sta_generation++; - - if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) - rcu_assign_pointer(sdata->u.vlan.sta, NULL); - - if (local->ops->sta_notify) { - if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) - sdata = container_of(sdata->bss, - struct ieee80211_sub_if_data, - u.ap); - - drv_sta_notify(local, sdata, STA_NOTIFY_REMOVE, - &(*sta)->sta); - sdata = (*sta)->sdata; - } - - if (ieee80211_vif_is_mesh(&sdata->vif)) { - mesh_accept_plinks_update(sdata); -#ifdef CONFIG_MAC80211_MESH - del_timer(&(*sta)->plink_timer); -#endif - } - -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - printk(KERN_DEBUG "%s: Removed STA %pM\n", - wiphy_name(local->hw.wiphy), (*sta)->sta.addr); -#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */ - - /* - * Finally, pull caller's reference if the STA is pinned by the - * task that is adding the debugfs entries. In that case, we - * leave the STA "to be freed". - * - * The rules are not trivial, but not too complex either: - * (1) pin_status is only modified under the sta_lock - * (2) STAs may only be pinned under the RTNL so that - * sta_info_flush() is guaranteed to actually destroy - * all STAs that are active for a given interface, this - * is required for correctness because otherwise we - * could notify a driver that an interface is going - * away and only after that (!) notify it about a STA - * on that interface going away. - * (3) sta_info_debugfs_add_work() will set the status - * to PINNED when it found an item that needs a new - * debugfs directory created. In that case, that item - * must not be freed although all *RCU* users are done - * with it. Hence, we tell the caller of _unlink() - * that the item is already gone (as can happen when - * two tasks try to unlink/destroy at the same time) - * (4) We set the pin_status to DESTROY here when we - * find such an item. - * (5) sta_info_debugfs_add_work() will reset the pin_status - * from PINNED to NORMAL when it is done with the item, - * but will check for DESTROY before resetting it in - * which case it will free the item. - */ - if ((*sta)->pin_status == STA_INFO_PIN_STAT_PINNED) { - (*sta)->pin_status = STA_INFO_PIN_STAT_DESTROY; - *sta = NULL; - return; - } -} - -void sta_info_unlink(struct sta_info **sta) -{ - struct ieee80211_local *local = (*sta)->local; - unsigned long flags; - - spin_lock_irqsave(&local->sta_lock, flags); - __sta_info_unlink(sta); - spin_unlock_irqrestore(&local->sta_lock, flags); -} - static int sta_info_buffer_expired(struct sta_info *sta, struct sk_buff *skb) { @@ -681,109 +600,209 @@ static void sta_info_cleanup_expire_buffered(struct ieee80211_local *local, } } - -static void sta_info_cleanup(unsigned long data) +static int __must_check __sta_info_destroy(struct sta_info *sta) { - struct ieee80211_local *local = (struct ieee80211_local *) data; - struct sta_info *sta; + struct ieee80211_local *local; + struct ieee80211_sub_if_data *sdata; + struct sk_buff *skb; + unsigned long flags; + int ret, i; - rcu_read_lock(); - list_for_each_entry_rcu(sta, &local->sta_list, list) - sta_info_cleanup_expire_buffered(local, sta); - rcu_read_unlock(); + might_sleep(); - if (local->quiescing) - return; + if (!sta) + return -ENOENT; - local->sta_cleanup.expires = - round_jiffies(jiffies + STA_INFO_CLEANUP_INTERVAL); - add_timer(&local->sta_cleanup); -} + local = sta->local; + sdata = sta->sdata; -#ifdef CONFIG_MAC80211_DEBUGFS -/* - * See comment in __sta_info_unlink, - * caller must hold local->sta_lock. - */ -static void __sta_info_pin(struct sta_info *sta) -{ - WARN_ON(sta->pin_status != STA_INFO_PIN_STAT_NORMAL); - sta->pin_status = STA_INFO_PIN_STAT_PINNED; + spin_lock_irqsave(&local->sta_lock, flags); + ret = sta_info_hash_del(local, sta); + /* this might still be the pending list ... which is fine */ + if (!ret) + list_del(&sta->list); + spin_unlock_irqrestore(&local->sta_lock, flags); + if (ret) + return ret; + + if (sta->key) { + ieee80211_key_free(sta->key); + /* + * We have only unlinked the key, and actually destroying it + * may mean it is removed from hardware which requires that + * the key->sta pointer is still valid, so flush the key todo + * list here. + * + * ieee80211_key_todo() will synchronize_rcu() so after this + * nothing can reference this sta struct any more. + */ + ieee80211_key_todo(); + + WARN_ON(sta->key); + } + + sta->dead = true; + + if (test_and_clear_sta_flags(sta, + WLAN_STA_PS_STA | WLAN_STA_PS_DRIVER)) { + BUG_ON(!sdata->bss); + + atomic_dec(&sdata->bss->num_sta_ps); + __sta_info_clear_tim_bit(sdata->bss, sta); + } + + local->num_sta--; + local->sta_generation++; + + if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) + rcu_assign_pointer(sdata->u.vlan.sta, NULL); + + if (sta->uploaded) { + if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) + sdata = container_of(sdata->bss, + struct ieee80211_sub_if_data, + u.ap); + drv_sta_remove(local, sdata, &sta->sta); + sdata = sta->sdata; + } + +#ifdef CONFIG_MAC80211_MESH + if (ieee80211_vif_is_mesh(&sdata->vif)) { + mesh_accept_plinks_update(sdata); + del_timer(&sta->plink_timer); + } +#endif + +#ifdef CONFIG_MAC80211_VERBOSE_DEBUG + printk(KERN_DEBUG "%s: Removed STA %pM\n", + wiphy_name(local->hw.wiphy), sta->sta.addr); +#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */ + cancel_work_sync(&sta->drv_unblock_wk); + + rate_control_remove_sta_debugfs(sta); + ieee80211_sta_debugfs_remove(sta); + +#ifdef CONFIG_MAC80211_MESH + if (ieee80211_vif_is_mesh(&sta->sdata->vif)) { + mesh_plink_deactivate(sta); + del_timer_sync(&sta->plink_timer); + } +#endif + + while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) { + local->total_ps_buffered--; + dev_kfree_skb_any(skb); + } + + while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) + dev_kfree_skb_any(skb); + + for (i = 0; i < STA_TID_NUM; i++) { + struct tid_ampdu_rx *tid_rx; + struct tid_ampdu_tx *tid_tx; + + spin_lock_bh(&sta->lock); + tid_rx = sta->ampdu_mlme.tid_rx[i]; + /* Make sure timer won't free the tid_rx struct, see below */ + if (tid_rx) + tid_rx->shutdown = true; + + spin_unlock_bh(&sta->lock); + + /* + * Outside spinlock - shutdown is true now so that the timer + * won't free tid_rx, we have to do that now. Can't let the + * timer do it because we have to sync the timer outside the + * lock that it takes itself. + */ + if (tid_rx) { + del_timer_sync(&tid_rx->session_timer); + kfree(tid_rx); + } + + /* + * No need to do such complications for TX agg sessions, the + * path leading to freeing the tid_tx struct goes via a call + * from the driver, and thus needs to look up the sta struct + * again, which cannot be found when we get here. Hence, we + * just need to delete the timer and free the aggregation + * info; we won't be telling the peer about it then but that + * doesn't matter if we're not talking to it again anyway. + */ + tid_tx = sta->ampdu_mlme.tid_tx[i]; + if (tid_tx) { + del_timer_sync(&tid_tx->addba_resp_timer); + /* + * STA removed while aggregation session being + * started? Bit odd, but purge frames anyway. + */ + skb_queue_purge(&tid_tx->pending); + kfree(tid_tx); + } + } + + __sta_info_free(local, sta); + + return 0; } -/* - * See comment in __sta_info_unlink, returns sta if it - * needs to be destroyed. - */ -static struct sta_info *__sta_info_unpin(struct sta_info *sta) +int sta_info_destroy_addr(struct ieee80211_sub_if_data *sdata, const u8 *addr) { - struct sta_info *ret = NULL; - unsigned long flags; + struct sta_info *sta; + int ret; - spin_lock_irqsave(&sta->local->sta_lock, flags); - WARN_ON(sta->pin_status != STA_INFO_PIN_STAT_DESTROY && - sta->pin_status != STA_INFO_PIN_STAT_PINNED); - if (sta->pin_status == STA_INFO_PIN_STAT_DESTROY) - ret = sta; - sta->pin_status = STA_INFO_PIN_STAT_NORMAL; - spin_unlock_irqrestore(&sta->local->sta_lock, flags); + mutex_lock(&sdata->local->sta_mtx); + sta = sta_info_get(sdata, addr); + ret = __sta_info_destroy(sta); + mutex_unlock(&sdata->local->sta_mtx); return ret; } -static void sta_info_debugfs_add_work(struct work_struct *work) +int sta_info_destroy_addr_bss(struct ieee80211_sub_if_data *sdata, + const u8 *addr) { - struct ieee80211_local *local = - container_of(work, struct ieee80211_local, sta_debugfs_add); - struct sta_info *sta, *tmp; - unsigned long flags; + struct sta_info *sta; + int ret; - /* We need to keep the RTNL across the whole pinned status. */ - rtnl_lock(); - while (1) { - sta = NULL; + mutex_lock(&sdata->local->sta_mtx); + sta = sta_info_get_bss(sdata, addr); + ret = __sta_info_destroy(sta); + mutex_unlock(&sdata->local->sta_mtx); - spin_lock_irqsave(&local->sta_lock, flags); - list_for_each_entry(tmp, &local->sta_list, list) { - /* - * debugfs.add_has_run will be set by - * ieee80211_sta_debugfs_add regardless - * of what else it does. - */ - if (!tmp->debugfs.add_has_run) { - sta = tmp; - __sta_info_pin(sta); - break; - } - } - spin_unlock_irqrestore(&local->sta_lock, flags); + return ret; +} - if (!sta) - break; +static void sta_info_cleanup(unsigned long data) +{ + struct ieee80211_local *local = (struct ieee80211_local *) data; + struct sta_info *sta; + + rcu_read_lock(); + list_for_each_entry_rcu(sta, &local->sta_list, list) + sta_info_cleanup_expire_buffered(local, sta); + rcu_read_unlock(); - ieee80211_sta_debugfs_add(sta); - rate_control_add_sta_debugfs(sta); + if (local->quiescing) + return; - sta = __sta_info_unpin(sta); - sta_info_destroy(sta); - } - rtnl_unlock(); + local->sta_cleanup.expires = + round_jiffies(jiffies + STA_INFO_CLEANUP_INTERVAL); + add_timer(&local->sta_cleanup); } -#endif void sta_info_init(struct ieee80211_local *local) { spin_lock_init(&local->sta_lock); + mutex_init(&local->sta_mtx); INIT_LIST_HEAD(&local->sta_list); + INIT_LIST_HEAD(&local->sta_pending_list); + INIT_WORK(&local->sta_finish_work, sta_info_finish_work); setup_timer(&local->sta_cleanup, sta_info_cleanup, (unsigned long)local); local->sta_cleanup.expires = round_jiffies(jiffies + STA_INFO_CLEANUP_INTERVAL); - -#ifdef CONFIG_MAC80211_DEBUGFS - INIT_WORK(&local->sta_debugfs_add, sta_info_debugfs_add_work); -#endif } int sta_info_start(struct ieee80211_local *local) @@ -795,16 +814,6 @@ int sta_info_start(struct ieee80211_local *local) void sta_info_stop(struct ieee80211_local *local) { del_timer(&local->sta_cleanup); -#ifdef CONFIG_MAC80211_DEBUGFS - /* - * Make sure the debugfs adding work isn't pending after this - * because we're about to be destroyed. It doesn't matter - * whether it ran or not since we're going to flush all STAs - * anyway. - */ - cancel_work_sync(&local->sta_debugfs_add); -#endif - sta_info_flush(local, NULL); } @@ -820,26 +829,19 @@ int sta_info_flush(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata) { struct sta_info *sta, *tmp; - LIST_HEAD(tmp_list); int ret = 0; - unsigned long flags; might_sleep(); - spin_lock_irqsave(&local->sta_lock, flags); + mutex_lock(&local->sta_mtx); + + sta_info_finish_pending(local); + list_for_each_entry_safe(sta, tmp, &local->sta_list, list) { - if (!sdata || sdata == sta->sdata) { - __sta_info_unlink(&sta); - if (sta) { - list_add_tail(&sta->list, &tmp_list); - ret++; - } - } + if (!sdata || sdata == sta->sdata) + WARN_ON(__sta_info_destroy(sta)); } - spin_unlock_irqrestore(&local->sta_lock, flags); - - list_for_each_entry_safe(sta, tmp, &tmp_list, list) - sta_info_destroy(sta); + mutex_unlock(&local->sta_mtx); return ret; } @@ -849,24 +851,17 @@ void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata, { struct ieee80211_local *local = sdata->local; struct sta_info *sta, *tmp; - LIST_HEAD(tmp_list); - unsigned long flags; - spin_lock_irqsave(&local->sta_lock, flags); + mutex_lock(&local->sta_mtx); list_for_each_entry_safe(sta, tmp, &local->sta_list, list) if (time_after(jiffies, sta->last_rx + exp_time)) { #ifdef CONFIG_MAC80211_IBSS_DEBUG printk(KERN_DEBUG "%s: expiring inactive STA %pM\n", sdata->name, sta->sta.addr); #endif - __sta_info_unlink(&sta); - if (sta) - list_add(&sta->list, &tmp_list); + WARN_ON(__sta_info_destroy(sta)); } - spin_unlock_irqrestore(&local->sta_lock, flags); - - list_for_each_entry_safe(sta, tmp, &tmp_list, list) - sta_info_destroy(sta); + mutex_unlock(&local->sta_mtx); } struct ieee80211_sta *ieee80211_find_sta_by_hw(struct ieee80211_hw *hw, diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index 6f79bba5706e..822d84522937 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -42,6 +42,9 @@ * be in the queues * @WLAN_STA_PSPOLL: Station sent PS-poll while driver was keeping * station in power-save mode, reply when the driver unblocks. + * @WLAN_STA_DISASSOC: Disassociation in progress. + * This is used to reject TX BA session requests when disassociation + * is in progress. */ enum ieee80211_sta_info_flags { WLAN_STA_AUTH = 1<<0, @@ -57,6 +60,7 @@ enum ieee80211_sta_info_flags { WLAN_STA_SUSPEND = 1<<11, WLAN_STA_PS_DRIVER = 1<<12, WLAN_STA_PSPOLL = 1<<13, + WLAN_STA_DISASSOC = 1<<14, }; #define STA_TID_NUM 16 @@ -162,11 +166,6 @@ struct sta_ampdu_mlme { }; -/* see __sta_info_unlink */ -#define STA_INFO_PIN_STAT_NORMAL 0 -#define STA_INFO_PIN_STAT_PINNED 1 -#define STA_INFO_PIN_STAT_DESTROY 2 - /** * struct sta_info - STA information * @@ -187,7 +186,6 @@ struct sta_ampdu_mlme { * @flaglock: spinlock for flags accesses * @drv_unblock_wk: used for driver PS unblocking * @listen_interval: listen interval of this station, when we're acting as AP - * @pin_status: used internally for pinning a STA struct into memory * @flags: STA flags, see &enum ieee80211_sta_info_flags * @ps_tx_buf: buffer of frames to transmit to this station * when it leaves power saving state @@ -226,6 +224,7 @@ struct sta_ampdu_mlme { * @debugfs: debug filesystem info * @sta: station information we share with the driver * @dead: set to true when sta is unlinked + * @uploaded: set to true when sta is uploaded to the driver */ struct sta_info { /* General information, mostly static */ @@ -245,11 +244,7 @@ struct sta_info { bool dead; - /* - * for use by the internal lifetime management, - * see __sta_info_unlink - */ - u8 pin_status; + bool uploaded; /* * frequently updated, locked with own spinlock (flaglock), @@ -449,18 +444,19 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata, * Insert STA info into hash table/list, returns zero or a * -EEXIST if (if the same MAC address is already present). * - * Calling this without RCU protection makes the caller - * relinquish its reference to @sta. + * Calling the non-rcu version makes the caller relinquish, + * the _rcu version calls read_lock_rcu() and must be called + * without it held. */ int sta_info_insert(struct sta_info *sta); -/* - * Unlink a STA info from the hash table/list. - * This can NULL the STA pointer if somebody else - * has already unlinked it. - */ -void sta_info_unlink(struct sta_info **sta); +int sta_info_insert_rcu(struct sta_info *sta) __acquires(RCU); +int sta_info_insert_atomic(struct sta_info *sta); + +int sta_info_destroy_addr(struct ieee80211_sub_if_data *sdata, + const u8 *addr); +int sta_info_destroy_addr_bss(struct ieee80211_sub_if_data *sdata, + const u8 *addr); -void sta_info_destroy(struct sta_info *sta); void sta_info_set_tim_bit(struct sta_info *sta); void sta_info_clear_tim_bit(struct sta_info *sta); diff --git a/net/mac80211/status.c b/net/mac80211/status.c index e57ad6b1d7ea..ded98730c111 100644 --- a/net/mac80211/status.c +++ b/net/mac80211/status.c @@ -188,6 +188,7 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) rcu_read_lock(); sband = local->hw.wiphy->bands[info->band]; + fc = hdr->frame_control; for_each_sta_info(local, hdr->addr1, sta, tmp) { /* skip wrong virtual interface */ @@ -205,8 +206,6 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) return; } - fc = hdr->frame_control; - if ((info->flags & IEEE80211_TX_STAT_AMPDU_NO_BACK) && (ieee80211_is_data_qos(fc))) { u16 tid, ssn; @@ -275,6 +274,20 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) local->dot11FailedCount++; } + if (ieee80211_is_nullfunc(fc) && ieee80211_has_pm(fc) && + (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS) && + !(info->flags & IEEE80211_TX_CTL_INJECTED) && + local->ps_sdata && !(local->scanning)) { + if (info->flags & IEEE80211_TX_STAT_ACK) { + local->ps_sdata->u.mgd.flags |= + IEEE80211_STA_NULLFUNC_ACKED; + ieee80211_queue_work(&local->hw, + &local->dynamic_ps_enable_work); + } else + mod_timer(&local->dynamic_ps_timer, jiffies + + msecs_to_jiffies(10)); + } + /* this was a transmitted frame, but now we want to reuse it */ skb_orphan(skb); diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 85e382aa894e..cbe53ed4fb0b 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -571,7 +571,7 @@ ieee80211_tx_h_sta(struct ieee80211_tx_data *tx) { struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb); - if (tx->sta) + if (tx->sta && tx->sta->uploaded) info->control.sta = &tx->sta->sta; return TX_CONTINUE; @@ -1010,7 +1010,8 @@ static bool __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx, (struct ieee80211_radiotap_header *) skb->data; struct ieee80211_supported_band *sband; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - int ret = ieee80211_radiotap_iterator_init(&iterator, rthdr, skb->len); + int ret = ieee80211_radiotap_iterator_init(&iterator, rthdr, skb->len, + NULL); sband = tx->local->hw.wiphy->bands[tx->channel->band]; @@ -1046,7 +1047,7 @@ static bool __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx, * because it will be recomputed and added * on transmission */ - if (skb->len < (iterator.max_length + FCS_LEN)) + if (skb->len < (iterator._max_length + FCS_LEN)) return false; skb_trim(skb, skb->len - FCS_LEN); @@ -1073,10 +1074,10 @@ static bool __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx, /* * remove the radiotap header - * iterator->max_length was sanity-checked against + * iterator->_max_length was sanity-checked against * skb->len by iterator init */ - skb_pull(skb, iterator.max_length); + skb_pull(skb, iterator._max_length); return true; } diff --git a/net/mac80211/util.c b/net/mac80211/util.c index ca170b417da6..c453226f06b2 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -1082,7 +1082,6 @@ int ieee80211_reconfig(struct ieee80211_local *local) struct ieee80211_hw *hw = &local->hw; struct ieee80211_sub_if_data *sdata; struct sta_info *sta; - unsigned long flags; int res; if (local->suspended) @@ -1116,20 +1115,19 @@ int ieee80211_reconfig(struct ieee80211_local *local) } /* add STAs back */ - if (local->ops->sta_notify) { - spin_lock_irqsave(&local->sta_lock, flags); - list_for_each_entry(sta, &local->sta_list, list) { + mutex_lock(&local->sta_mtx); + list_for_each_entry(sta, &local->sta_list, list) { + if (sta->uploaded) { sdata = sta->sdata; if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) sdata = container_of(sdata->bss, struct ieee80211_sub_if_data, u.ap); - drv_sta_notify(local, sdata, STA_NOTIFY_ADD, - &sta->sta); + WARN_ON(drv_sta_add(local, sdata, &sta->sta)); } - spin_unlock_irqrestore(&local->sta_lock, flags); } + mutex_unlock(&local->sta_mtx); /* Clear Suspend state so that ADDBA requests can be processed */ @@ -1180,6 +1178,14 @@ int ieee80211_reconfig(struct ieee80211_local *local) } } + rcu_read_lock(); + if (hw->flags & IEEE80211_HW_AMPDU_AGGREGATION) { + list_for_each_entry_rcu(sta, &local->sta_list, list) { + ieee80211_sta_tear_down_BA_sessions(sta); + } + } + rcu_read_unlock(); + /* add back keys */ list_for_each_entry(sdata, &local->interfaces, list) if (ieee80211_sdata_running(sdata)) @@ -1219,10 +1225,10 @@ int ieee80211_reconfig(struct ieee80211_local *local) add_timer(&local->sta_cleanup); - spin_lock_irqsave(&local->sta_lock, flags); + mutex_lock(&local->sta_mtx); list_for_each_entry(sta, &local->sta_list, list) mesh_plink_restart(sta); - spin_unlock_irqrestore(&local->sta_lock, flags); + mutex_unlock(&local->sta_mtx); #else WARN_ON(1); #endif diff --git a/net/wireless/radiotap.c b/net/wireless/radiotap.c index f591871a7b4f..1332c445d1c7 100644 --- a/net/wireless/radiotap.c +++ b/net/wireless/radiotap.c @@ -2,6 +2,16 @@ * Radiotap parser * * Copyright 2007 Andy Green <andy@warmcat.com> + * Copyright 2009 Johannes Berg <johannes@sipsolutions.net> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Alternatively, this software may be distributed under the terms of BSD + * license. + * + * See COPYING for more details. */ #include <net/cfg80211.h> @@ -10,6 +20,35 @@ /* function prototypes and related defs are in include/net/cfg80211.h */ +static const struct radiotap_align_size rtap_namespace_sizes[] = { + [IEEE80211_RADIOTAP_TSFT] = { .align = 8, .size = 8, }, + [IEEE80211_RADIOTAP_FLAGS] = { .align = 1, .size = 1, }, + [IEEE80211_RADIOTAP_RATE] = { .align = 1, .size = 1, }, + [IEEE80211_RADIOTAP_CHANNEL] = { .align = 2, .size = 4, }, + [IEEE80211_RADIOTAP_FHSS] = { .align = 2, .size = 2, }, + [IEEE80211_RADIOTAP_DBM_ANTSIGNAL] = { .align = 1, .size = 1, }, + [IEEE80211_RADIOTAP_DBM_ANTNOISE] = { .align = 1, .size = 1, }, + [IEEE80211_RADIOTAP_LOCK_QUALITY] = { .align = 2, .size = 2, }, + [IEEE80211_RADIOTAP_TX_ATTENUATION] = { .align = 2, .size = 2, }, + [IEEE80211_RADIOTAP_DB_TX_ATTENUATION] = { .align = 2, .size = 2, }, + [IEEE80211_RADIOTAP_DBM_TX_POWER] = { .align = 1, .size = 1, }, + [IEEE80211_RADIOTAP_ANTENNA] = { .align = 1, .size = 1, }, + [IEEE80211_RADIOTAP_DB_ANTSIGNAL] = { .align = 1, .size = 1, }, + [IEEE80211_RADIOTAP_DB_ANTNOISE] = { .align = 1, .size = 1, }, + [IEEE80211_RADIOTAP_RX_FLAGS] = { .align = 2, .size = 2, }, + [IEEE80211_RADIOTAP_TX_FLAGS] = { .align = 2, .size = 2, }, + [IEEE80211_RADIOTAP_RTS_RETRIES] = { .align = 1, .size = 1, }, + [IEEE80211_RADIOTAP_DATA_RETRIES] = { .align = 1, .size = 1, }, + /* + * add more here as they are defined in radiotap.h + */ +}; + +static const struct ieee80211_radiotap_namespace radiotap_ns = { + .n_bits = sizeof(rtap_namespace_sizes) / sizeof(rtap_namespace_sizes[0]), + .align_size = rtap_namespace_sizes, +}; + /** * ieee80211_radiotap_iterator_init - radiotap parser iterator initialization * @iterator: radiotap_iterator to initialize @@ -50,9 +89,9 @@ */ int ieee80211_radiotap_iterator_init( - struct ieee80211_radiotap_iterator *iterator, - struct ieee80211_radiotap_header *radiotap_header, - int max_length) + struct ieee80211_radiotap_iterator *iterator, + struct ieee80211_radiotap_header *radiotap_header, + int max_length, const struct ieee80211_radiotap_vendor_namespaces *vns) { /* Linux only supports version 0 radiotap format */ if (radiotap_header->it_version) @@ -62,19 +101,24 @@ int ieee80211_radiotap_iterator_init( if (max_length < get_unaligned_le16(&radiotap_header->it_len)) return -EINVAL; - iterator->rtheader = radiotap_header; - iterator->max_length = get_unaligned_le16(&radiotap_header->it_len); - iterator->arg_index = 0; - iterator->bitmap_shifter = get_unaligned_le32(&radiotap_header->it_present); - iterator->arg = (u8 *)radiotap_header + sizeof(*radiotap_header); - iterator->this_arg = NULL; + iterator->_rtheader = radiotap_header; + iterator->_max_length = get_unaligned_le16(&radiotap_header->it_len); + iterator->_arg_index = 0; + iterator->_bitmap_shifter = get_unaligned_le32(&radiotap_header->it_present); + iterator->_arg = (uint8_t *)radiotap_header + sizeof(*radiotap_header); + iterator->_reset_on_ext = 0; + iterator->_next_bitmap = &radiotap_header->it_present; + iterator->_next_bitmap++; + iterator->_vns = vns; + iterator->current_namespace = &radiotap_ns; + iterator->is_radiotap_ns = 1; /* find payload start allowing for extended bitmap(s) */ - if (unlikely(iterator->bitmap_shifter & (1<<IEEE80211_RADIOTAP_EXT))) { - while (get_unaligned_le32(iterator->arg) & - (1 << IEEE80211_RADIOTAP_EXT)) { - iterator->arg += sizeof(u32); + if (iterator->_bitmap_shifter & (1<<IEEE80211_RADIOTAP_EXT)) { + while (get_unaligned_le32(iterator->_arg) & + (1 << IEEE80211_RADIOTAP_EXT)) { + iterator->_arg += sizeof(uint32_t); /* * check for insanity where the present bitmaps @@ -82,12 +126,13 @@ int ieee80211_radiotap_iterator_init( * stated radiotap header length */ - if (((ulong)iterator->arg - - (ulong)iterator->rtheader) > iterator->max_length) + if ((unsigned long)iterator->_arg - + (unsigned long)iterator->_rtheader > + (unsigned long)iterator->_max_length) return -EINVAL; } - iterator->arg += sizeof(u32); + iterator->_arg += sizeof(uint32_t); /* * no need to check again for blowing past stated radiotap @@ -96,12 +141,36 @@ int ieee80211_radiotap_iterator_init( */ } + iterator->this_arg = iterator->_arg; + /* we are all initialized happily */ return 0; } EXPORT_SYMBOL(ieee80211_radiotap_iterator_init); +static void find_ns(struct ieee80211_radiotap_iterator *iterator, + uint32_t oui, uint8_t subns) +{ + int i; + + iterator->current_namespace = NULL; + + if (!iterator->_vns) + return; + + for (i = 0; i < iterator->_vns->n_ns; i++) { + if (iterator->_vns->ns[i].oui != oui) + continue; + if (iterator->_vns->ns[i].subns != subns) + continue; + + iterator->current_namespace = &iterator->_vns->ns[i]; + break; + } +} + + /** * ieee80211_radiotap_iterator_next - return next radiotap parser iterator arg @@ -127,99 +196,80 @@ EXPORT_SYMBOL(ieee80211_radiotap_iterator_init); */ int ieee80211_radiotap_iterator_next( - struct ieee80211_radiotap_iterator *iterator) + struct ieee80211_radiotap_iterator *iterator) { - - /* - * small length lookup table for all radiotap types we heard of - * starting from b0 in the bitmap, so we can walk the payload - * area of the radiotap header - * - * There is a requirement to pad args, so that args - * of a given length must begin at a boundary of that length - * -- but note that compound args are allowed (eg, 2 x u16 - * for IEEE80211_RADIOTAP_CHANNEL) so total arg length is not - * a reliable indicator of alignment requirement. - * - * upper nybble: content alignment for arg - * lower nybble: content length for arg - */ - - static const u8 rt_sizes[] = { - [IEEE80211_RADIOTAP_TSFT] = 0x88, - [IEEE80211_RADIOTAP_FLAGS] = 0x11, - [IEEE80211_RADIOTAP_RATE] = 0x11, - [IEEE80211_RADIOTAP_CHANNEL] = 0x24, - [IEEE80211_RADIOTAP_FHSS] = 0x22, - [IEEE80211_RADIOTAP_DBM_ANTSIGNAL] = 0x11, - [IEEE80211_RADIOTAP_DBM_ANTNOISE] = 0x11, - [IEEE80211_RADIOTAP_LOCK_QUALITY] = 0x22, - [IEEE80211_RADIOTAP_TX_ATTENUATION] = 0x22, - [IEEE80211_RADIOTAP_DB_TX_ATTENUATION] = 0x22, - [IEEE80211_RADIOTAP_DBM_TX_POWER] = 0x11, - [IEEE80211_RADIOTAP_ANTENNA] = 0x11, - [IEEE80211_RADIOTAP_DB_ANTSIGNAL] = 0x11, - [IEEE80211_RADIOTAP_DB_ANTNOISE] = 0x11, - [IEEE80211_RADIOTAP_RX_FLAGS] = 0x22, - [IEEE80211_RADIOTAP_TX_FLAGS] = 0x22, - [IEEE80211_RADIOTAP_RTS_RETRIES] = 0x11, - [IEEE80211_RADIOTAP_DATA_RETRIES] = 0x11, - /* - * add more here as they are defined in - * include/net/ieee80211_radiotap.h - */ - }; - - /* - * for every radiotap entry we can at - * least skip (by knowing the length)... - */ - - while (iterator->arg_index < sizeof(rt_sizes)) { + while (1) { int hit = 0; - int pad; + int pad, align, size, subns, vnslen; + uint32_t oui; - if (!(iterator->bitmap_shifter & 1)) + /* if no more EXT bits, that's it */ + if ((iterator->_arg_index % 32) == IEEE80211_RADIOTAP_EXT && + !(iterator->_bitmap_shifter & 1)) + return -ENOENT; + + if (!(iterator->_bitmap_shifter & 1)) goto next_entry; /* arg not present */ + /* get alignment/size of data */ + switch (iterator->_arg_index % 32) { + case IEEE80211_RADIOTAP_RADIOTAP_NAMESPACE: + case IEEE80211_RADIOTAP_EXT: + align = 1; + size = 0; + break; + case IEEE80211_RADIOTAP_VENDOR_NAMESPACE: + align = 2; + size = 6; + break; + default: + if (!iterator->current_namespace || + iterator->_arg_index >= iterator->current_namespace->n_bits) { + if (iterator->current_namespace == &radiotap_ns) + return -ENOENT; + align = 0; + } else { + align = iterator->current_namespace->align_size[iterator->_arg_index].align; + size = iterator->current_namespace->align_size[iterator->_arg_index].size; + } + if (!align) { + /* skip all subsequent data */ + iterator->_arg = iterator->_next_ns_data; + /* give up on this namespace */ + iterator->current_namespace = NULL; + goto next_entry; + } + break; + } + /* * arg is present, account for alignment padding - * 8-bit args can be at any alignment - * 16-bit args must start on 16-bit boundary - * 32-bit args must start on 32-bit boundary - * 64-bit args must start on 64-bit boundary * - * note that total arg size can differ from alignment of - * elements inside arg, so we use upper nybble of length - * table to base alignment on - * - * also note: these alignments are ** relative to the - * start of the radiotap header **. There is no guarantee + * Note that these alignments are relative to the start + * of the radiotap header. There is no guarantee * that the radiotap header itself is aligned on any * kind of boundary. * - * the above is why get_unaligned() is used to dereference - * multibyte elements from the radiotap area + * The above is why get_unaligned() is used to dereference + * multibyte elements from the radiotap area. */ - pad = (((ulong)iterator->arg) - - ((ulong)iterator->rtheader)) & - ((rt_sizes[iterator->arg_index] >> 4) - 1); + pad = ((unsigned long)iterator->_arg - + (unsigned long)iterator->_rtheader) & (align - 1); if (pad) - iterator->arg += - (rt_sizes[iterator->arg_index] >> 4) - pad; + iterator->_arg += align - pad; /* * this is what we will return to user, but we need to * move on first so next call has something fresh to test */ - iterator->this_arg_index = iterator->arg_index; - iterator->this_arg = iterator->arg; - hit = 1; + iterator->this_arg_index = iterator->_arg_index; + iterator->this_arg = iterator->_arg; + iterator->this_arg_size = size; /* internally move on the size of this arg */ - iterator->arg += rt_sizes[iterator->arg_index] & 0x0f; + iterator->_arg += size; /* * check for insanity where we are given a bitmap that @@ -228,32 +278,73 @@ int ieee80211_radiotap_iterator_next( * max_length on the last arg, never exceeding it. */ - if (((ulong)iterator->arg - (ulong)iterator->rtheader) > - iterator->max_length) + if ((unsigned long)iterator->_arg - + (unsigned long)iterator->_rtheader > + (unsigned long)iterator->_max_length) return -EINVAL; - next_entry: - iterator->arg_index++; - if (unlikely((iterator->arg_index & 31) == 0)) { - /* completed current u32 bitmap */ - if (iterator->bitmap_shifter & 1) { - /* b31 was set, there is more */ - /* move to next u32 bitmap */ - iterator->bitmap_shifter = - get_unaligned_le32(iterator->next_bitmap); - iterator->next_bitmap++; - } else - /* no more bitmaps: end */ - iterator->arg_index = sizeof(rt_sizes); - } else /* just try the next bit */ - iterator->bitmap_shifter >>= 1; + /* these special ones are valid in each bitmap word */ + switch (iterator->_arg_index % 32) { + case IEEE80211_RADIOTAP_VENDOR_NAMESPACE: + iterator->_bitmap_shifter >>= 1; + iterator->_arg_index++; + + iterator->_reset_on_ext = 1; + + vnslen = get_unaligned_le16(iterator->this_arg + 4); + iterator->_next_ns_data = iterator->_arg + vnslen; + oui = (*iterator->this_arg << 16) | + (*(iterator->this_arg + 1) << 8) | + *(iterator->this_arg + 2); + subns = *(iterator->this_arg + 3); + + find_ns(iterator, oui, subns); + + iterator->is_radiotap_ns = 0; + /* allow parsers to show this information */ + iterator->this_arg_index = + IEEE80211_RADIOTAP_VENDOR_NAMESPACE; + iterator->this_arg_size += vnslen; + if ((unsigned long)iterator->this_arg + + iterator->this_arg_size - + (unsigned long)iterator->_rtheader > + (unsigned long)(unsigned long)iterator->_max_length) + return -EINVAL; + hit = 1; + break; + case IEEE80211_RADIOTAP_RADIOTAP_NAMESPACE: + iterator->_bitmap_shifter >>= 1; + iterator->_arg_index++; + + iterator->_reset_on_ext = 1; + iterator->current_namespace = &radiotap_ns; + iterator->is_radiotap_ns = 1; + break; + case IEEE80211_RADIOTAP_EXT: + /* + * bit 31 was set, there is more + * -- move to next u32 bitmap + */ + iterator->_bitmap_shifter = + get_unaligned_le32(iterator->_next_bitmap); + iterator->_next_bitmap++; + if (iterator->_reset_on_ext) + iterator->_arg_index = 0; + else + iterator->_arg_index++; + iterator->_reset_on_ext = 0; + break; + default: + /* we've got a hit! */ + hit = 1; + next_entry: + iterator->_bitmap_shifter >>= 1; + iterator->_arg_index++; + } /* if we found a valid arg earlier, return it now */ if (hit) return 0; } - - /* we don't know how to handle any more args, we're done */ - return -ENOENT; } EXPORT_SYMBOL(ieee80211_radiotap_iterator_next); |
