From d73782fdde76554016abf73b46f843b29f520848 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Tue, 7 Oct 2008 12:04:34 +0200 Subject: mac80211: clean up ieee80211_hw_config errors Warn when ieee80211_hw_config returns an error, it shouldn't happen; remove a number of printks that would happen in such a case and one printk that is user-triggerable. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- net/mac80211/wext.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) (limited to 'net/mac80211/wext.c') diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c index 742f811ca41..29c41040c8c 100644 --- a/net/mac80211/wext.c +++ b/net/mac80211/wext.c @@ -689,12 +689,8 @@ static int ieee80211_ioctl_siwtxpower(struct net_device *dev, ieee80211_led_radio(local, local->hw.conf.radio_enabled); } - if (need_reconfig) { + if (need_reconfig) ieee80211_hw_config(local); - /* The return value of hw_config is not of big interest here, - * as it doesn't say that it failed because of _this_ config - * change or something else. Ignore it. */ - } return 0; } -- cgit v1.2.3-70-g09d2 From d9fe60dea7779d412b34679f1177c5ca1940ea8d Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 9 Oct 2008 12:13:49 +0200 Subject: 802.11: clean up/fix HT support This patch cleans up a number of things: * the unusable definition of the HT capabilities/HT information information elements * variable names that are hard to understand * mac80211: move ieee80211_handle_ht to ht.c and remove the unused enable_ht parameter * mac80211: fix bug with MCS rate 32 in ieee80211_handle_ht * mac80211: fix bug with casting the result of ieee80211_bss_get_ie to an information element _contents_ rather than the whole element, add size checking (another out-of-bounds access bug fixed!) * mac80211: remove some unused return values in favour of BUG_ON checking * a few minor other things Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- drivers/net/wireless/ath9k/main.c | 57 ++++++----- drivers/net/wireless/ath9k/rc.c | 10 +- drivers/net/wireless/ath9k/rc.h | 1 - drivers/net/wireless/ath9k/recv.c | 2 +- drivers/net/wireless/ath9k/xmit.c | 2 +- drivers/net/wireless/iwlwifi/iwl-agn-rs.c | 18 ++-- drivers/net/wireless/iwlwifi/iwl-agn.c | 20 ++-- drivers/net/wireless/iwlwifi/iwl-core.c | 71 +++++++------- drivers/net/wireless/iwlwifi/iwl-core.h | 2 +- drivers/net/wireless/iwlwifi/iwl-dev.h | 4 +- drivers/net/wireless/iwlwifi/iwl-scan.c | 12 +-- drivers/net/wireless/iwlwifi/iwl-sta.c | 6 +- drivers/net/wireless/mac80211_hwsim.c | 19 ++-- include/linux/ieee80211.h | 133 ++++++++++++++++++-------- include/net/mac80211.h | 12 +-- include/net/wireless.h | 15 +-- net/mac80211/cfg.c | 7 +- net/mac80211/ht.c | 151 +++++++++++++++++++++++++----- net/mac80211/ieee80211_i.h | 16 ++-- net/mac80211/main.c | 94 ------------------- net/mac80211/mlme.c | 45 ++++----- net/mac80211/util.c | 4 +- net/mac80211/wext.c | 4 +- 23 files changed, 386 insertions(+), 319 deletions(-) (limited to 'net/mac80211/wext.c') diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c index 186d75acb32..5e087c92a6d 100644 --- a/drivers/net/wireless/ath9k/main.c +++ b/drivers/net/wireless/ath9k/main.c @@ -61,24 +61,24 @@ static u32 ath_get_extchanmode(struct ath_softc *sc, switch (chan->band) { case IEEE80211_BAND_2GHZ: - if ((ext_chan_offset == IEEE80211_HT_IE_CHA_SEC_NONE) && + if ((ext_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_NONE) && (tx_chan_width == ATH9K_HT_MACMODE_20)) chanmode = CHANNEL_G_HT20; - if ((ext_chan_offset == IEEE80211_HT_IE_CHA_SEC_ABOVE) && + if ((ext_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_ABOVE) && (tx_chan_width == ATH9K_HT_MACMODE_2040)) chanmode = CHANNEL_G_HT40PLUS; - if ((ext_chan_offset == IEEE80211_HT_IE_CHA_SEC_BELOW) && + if ((ext_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_BELOW) && (tx_chan_width == ATH9K_HT_MACMODE_2040)) chanmode = CHANNEL_G_HT40MINUS; break; case IEEE80211_BAND_5GHZ: - if ((ext_chan_offset == IEEE80211_HT_IE_CHA_SEC_NONE) && + if ((ext_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_NONE) && (tx_chan_width == ATH9K_HT_MACMODE_20)) chanmode = CHANNEL_A_HT20; - if ((ext_chan_offset == IEEE80211_HT_IE_CHA_SEC_ABOVE) && + if ((ext_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_ABOVE) && (tx_chan_width == ATH9K_HT_MACMODE_2040)) chanmode = CHANNEL_A_HT40PLUS; - if ((ext_chan_offset == IEEE80211_HT_IE_CHA_SEC_BELOW) && + if ((ext_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_BELOW) && (tx_chan_width == ATH9K_HT_MACMODE_2040)) chanmode = CHANNEL_A_HT40MINUS; break; @@ -215,24 +215,24 @@ static void ath_key_delete(struct ath_softc *sc, struct ieee80211_key_conf *key) ath_key_reset(sc, key->keyidx, freeslot); } -static void setup_ht_cap(struct ieee80211_ht_info *ht_info) +static void setup_ht_cap(struct ieee80211_sta_ht_cap *ht_info) { #define ATH9K_HT_CAP_MAXRXAMPDU_65536 0x3 /* 2 ^ 16 */ #define ATH9K_HT_CAP_MPDUDENSITY_8 0x6 /* 8 usec */ - ht_info->ht_supported = 1; - ht_info->cap = (u16)IEEE80211_HT_CAP_SUP_WIDTH - |(u16)IEEE80211_HT_CAP_SM_PS - |(u16)IEEE80211_HT_CAP_SGI_40 - |(u16)IEEE80211_HT_CAP_DSSSCCK40; + ht_info->ht_supported = true; + ht_info->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 | + IEEE80211_HT_CAP_SM_PS | + IEEE80211_HT_CAP_SGI_40 | + IEEE80211_HT_CAP_DSSSCCK40; ht_info->ampdu_factor = ATH9K_HT_CAP_MAXRXAMPDU_65536; ht_info->ampdu_density = ATH9K_HT_CAP_MPDUDENSITY_8; - /* setup supported mcs set */ - memset(ht_info->supp_mcs_set, 0, 16); - ht_info->supp_mcs_set[0] = 0xff; - ht_info->supp_mcs_set[1] = 0xff; - ht_info->supp_mcs_set[12] = IEEE80211_HT_CAP_MCS_TX_DEFINED; + /* set up supported mcs set */ + memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); + ht_info->mcs.rx_mask[0] = 0xff; + ht_info->mcs.rx_mask[1] = 0xff; + ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; } static int ath_rate2idx(struct ath_softc *sc, int rate) @@ -328,31 +328,28 @@ static u8 parse_mpdudensity(u8 mpdudensity) static void ath9k_ht_conf(struct ath_softc *sc, struct ieee80211_bss_conf *bss_conf) { -#define IEEE80211_HT_CAP_40MHZ_INTOLERANT BIT(14) struct ath_ht_info *ht_info = &sc->sc_ht_info; if (bss_conf->assoc_ht) { ht_info->ext_chan_offset = bss_conf->ht_bss_conf->bss_cap & - IEEE80211_HT_IE_CHA_SEC_OFFSET; + IEEE80211_HT_PARAM_CHA_SEC_OFFSET; - if (!(bss_conf->ht_conf->cap & + if (!(bss_conf->ht_cap->cap & IEEE80211_HT_CAP_40MHZ_INTOLERANT) && (bss_conf->ht_bss_conf->bss_cap & - IEEE80211_HT_IE_CHA_WIDTH)) + IEEE80211_HT_PARAM_CHAN_WIDTH_ANY)) ht_info->tx_chan_width = ATH9K_HT_MACMODE_2040; else ht_info->tx_chan_width = ATH9K_HT_MACMODE_20; ath9k_hw_set11nmac2040(sc->sc_ah, ht_info->tx_chan_width); ht_info->maxampdu = 1 << (IEEE80211_HTCAP_MAXRXAMPDU_FACTOR + - bss_conf->ht_conf->ampdu_factor); + bss_conf->ht_cap->ampdu_factor); ht_info->mpdudensity = - parse_mpdudensity(bss_conf->ht_conf->ampdu_density); + parse_mpdudensity(bss_conf->ht_cap->ampdu_density); } - -#undef IEEE80211_HT_CAP_40MHZ_INTOLERANT } static void ath9k_bss_assoc_info(struct ath_softc *sc, @@ -411,7 +408,7 @@ static void ath9k_bss_assoc_info(struct ath_softc *sc, return; } - if (hw->conf.ht_conf.ht_supported) + if (hw->conf.ht_cap.ht_supported) sc->sc_ah->ah_channels[pos].chanmode = ath_get_extchanmode(sc, curchan); else @@ -534,7 +531,7 @@ int _ath_rx_indicate(struct ath_softc *sc, if (an) { ath_rx_input(sc, an, - hw->conf.ht_conf.ht_supported, + hw->conf.ht_cap.ht_supported, skb, status, &st); } if (!an || (st != ATH_RX_CONSUMED)) @@ -943,7 +940,7 @@ static int ath_attach(u16 devid, if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_HT) /* Setup HT capabilities for 2.4Ghz*/ - setup_ht_cap(&sc->sbands[IEEE80211_BAND_2GHZ].ht_info); + setup_ht_cap(&sc->sbands[IEEE80211_BAND_2GHZ].ht_cap); hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &sc->sbands[IEEE80211_BAND_2GHZ]; @@ -958,7 +955,7 @@ static int ath_attach(u16 devid, if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_HT) /* Setup HT capabilities for 5Ghz*/ - setup_ht_cap(&sc->sbands[IEEE80211_BAND_5GHZ].ht_info); + setup_ht_cap(&sc->sbands[IEEE80211_BAND_5GHZ].ht_cap); hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &sc->sbands[IEEE80211_BAND_5GHZ]; @@ -1254,7 +1251,7 @@ static int ath9k_config(struct ieee80211_hw *hw, (curchan->band == IEEE80211_BAND_2GHZ) ? CHANNEL_G : CHANNEL_A; - if (sc->sc_curaid && hw->conf.ht_conf.ht_supported) + if (sc->sc_curaid && hw->conf.ht_cap.ht_supported) sc->sc_ah->ah_channels[pos].chanmode = ath_get_extchanmode(sc, curchan); diff --git a/drivers/net/wireless/ath9k/rc.c b/drivers/net/wireless/ath9k/rc.c index b1e535b8ec4..ee2dbce42b4 100644 --- a/drivers/net/wireless/ath9k/rc.c +++ b/drivers/net/wireless/ath9k/rc.c @@ -1838,7 +1838,7 @@ void ath_rc_node_update(struct ieee80211_hw *hw, struct ath_rate_node *rc_priv) struct ath_softc *sc = hw->priv; u32 capflag = 0; - if (hw->conf.ht_conf.ht_supported) { + if (hw->conf.ht_cap.ht_supported) { capflag |= ATH_RC_HT_FLAG | ATH_RC_DS_FLAG; if (sc->sc_ht_info.tx_chan_width == ATH9K_HT_MACMODE_2040) capflag |= ATH_RC_CW40_FLAG; @@ -1910,7 +1910,7 @@ static void ath_tx_aggr_resp(struct ath_softc *sc, */ si = container_of(sta, struct sta_info, sta); buffersize = IEEE80211_MIN_AMPDU_BUF << - sband->ht_info.ampdu_factor; /* FIXME */ + sband->ht_cap.ampdu_factor; /* FIXME */ state = si->ampdu_mlme.tid_state_tx[tidno]; if (state & HT_ADDBA_RECEIVED_MSK) { @@ -1979,7 +1979,7 @@ static void ath_get_rate(void *priv, struct ieee80211_supported_band *sband, /* Check if aggregation has to be enabled for this tid */ - if (hw->conf.ht_conf.ht_supported) { + if (hw->conf.ht_cap.ht_supported) { if (ieee80211_is_data_qos(fc)) { qc = ieee80211_get_qos_ctl(hdr); tid = qc[0] & 0xf; @@ -2027,8 +2027,8 @@ static void ath_rate_init(void *priv, struct ieee80211_supported_band *sband, ath_setup_rates(sc, sband, sta, ath_rc_priv); if (sc->hw->conf.flags & IEEE80211_CONF_SUPPORT_HT_MODE) { - for (i = 0; i < MCS_SET_SIZE; i++) { - if (sc->hw->conf.ht_conf.supp_mcs_set[i/8] & (1<<(i%8))) + for (i = 0; i < 77; i++) { + if (sc->hw->conf.ht_cap.mcs.rx_mask[i/8] & (1<<(i%8))) ath_rc_priv->neg_ht_rates.rs_rates[j++] = i; if (j == ATH_RATE_MAX) break; diff --git a/drivers/net/wireless/ath9k/rc.h b/drivers/net/wireless/ath9k/rc.h index b95b41508b9..6671097fad7 100644 --- a/drivers/net/wireless/ath9k/rc.h +++ b/drivers/net/wireless/ath9k/rc.h @@ -59,7 +59,6 @@ struct ath_softc; #define FALSE 0 #define ATH_RATE_MAX 30 -#define MCS_SET_SIZE 128 enum ieee80211_fixed_rate_mode { IEEE80211_FIXED_RATE_NONE = 0, diff --git a/drivers/net/wireless/ath9k/recv.c b/drivers/net/wireless/ath9k/recv.c index 4983402af55..010fcdfec3f 100644 --- a/drivers/net/wireless/ath9k/recv.c +++ b/drivers/net/wireless/ath9k/recv.c @@ -1119,7 +1119,7 @@ int ath_rx_aggr_start(struct ath_softc *sc, sband = hw->wiphy->bands[hw->conf.channel->band]; buffersize = IEEE80211_MIN_AMPDU_BUF << - sband->ht_info.ampdu_factor; /* FIXME */ + sband->ht_cap.ampdu_factor; /* FIXME */ rxtid = &an->an_aggr.rx.tid[tid]; diff --git a/drivers/net/wireless/ath9k/xmit.c b/drivers/net/wireless/ath9k/xmit.c index 13866043dec..3770fbe84fc 100644 --- a/drivers/net/wireless/ath9k/xmit.c +++ b/drivers/net/wireless/ath9k/xmit.c @@ -300,7 +300,7 @@ static int ath_tx_prepare(struct ath_softc *sc, if (ieee80211_is_data(fc) && !txctl->use_minrate) { /* Enable HT only for DATA frames and not for EAPOL */ - txctl->ht = (hw->conf.ht_conf.ht_supported && + txctl->ht = (hw->conf.ht_cap.ht_supported && (tx_info->flags & IEEE80211_TX_CTL_AMPDU)); if (is_multicast_ether_addr(hdr->addr1)) { diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c index b497d40dc39..cd1bff59049 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c @@ -1134,10 +1134,10 @@ static int rs_switch_to_mimo2(struct iwl_priv *priv, s8 is_green = lq_sta->is_green; if (!(conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) || - !sta->ht_info.ht_supported) + !sta->ht_cap.ht_supported) return -1; - if (((sta->ht_info.cap & IEEE80211_HT_CAP_SM_PS) >> 2) + if (((sta->ht_cap.cap & IEEE80211_HT_CAP_SM_PS) >> 2) == WLAN_HT_CAP_SM_PS_STATIC) return -1; @@ -1202,7 +1202,7 @@ static int rs_switch_to_siso(struct iwl_priv *priv, s32 rate; if (!(conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) || - !sta->ht_info.ht_supported) + !sta->ht_cap.ht_supported) return -1; IWL_DEBUG_RATE("LQ: try to switch to SISO\n"); @@ -2238,19 +2238,19 @@ static void rs_rate_init(void *priv_r, struct ieee80211_supported_band *sband, * active_siso_rate mask includes 9 MBits (bit 5), and CCK (bits 0-3), * supp_rates[] does not; shift to convert format, force 9 MBits off. */ - lq_sta->active_siso_rate = conf->ht_conf.supp_mcs_set[0] << 1; - lq_sta->active_siso_rate |= conf->ht_conf.supp_mcs_set[0] & 0x1; + lq_sta->active_siso_rate = conf->ht_cap.mcs.rx_mask[0] << 1; + lq_sta->active_siso_rate |= conf->ht_cap.mcs.rx_mask[0] & 0x1; lq_sta->active_siso_rate &= ~((u16)0x2); lq_sta->active_siso_rate <<= IWL_FIRST_OFDM_RATE; /* Same here */ - lq_sta->active_mimo2_rate = conf->ht_conf.supp_mcs_set[1] << 1; - lq_sta->active_mimo2_rate |= conf->ht_conf.supp_mcs_set[1] & 0x1; + lq_sta->active_mimo2_rate = conf->ht_cap.mcs.rx_mask[1] << 1; + lq_sta->active_mimo2_rate |= conf->ht_cap.mcs.rx_mask[1] & 0x1; lq_sta->active_mimo2_rate &= ~((u16)0x2); lq_sta->active_mimo2_rate <<= IWL_FIRST_OFDM_RATE; - lq_sta->active_mimo3_rate = conf->ht_conf.supp_mcs_set[2] << 1; - lq_sta->active_mimo3_rate |= conf->ht_conf.supp_mcs_set[2] & 0x1; + lq_sta->active_mimo3_rate = conf->ht_cap.mcs.rx_mask[2] << 1; + lq_sta->active_mimo3_rate |= conf->ht_cap.mcs.rx_mask[2] & 0x1; lq_sta->active_mimo3_rate &= ~((u16)0x2); lq_sta->active_mimo3_rate <<= IWL_FIRST_OFDM_RATE; diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index 2cac09405af..e6695e80fb5 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -552,7 +552,7 @@ static int iwl4965_send_beacon_cmd(struct iwl_priv *priv) static void iwl4965_ht_conf(struct iwl_priv *priv, struct ieee80211_bss_conf *bss_conf) { - struct ieee80211_ht_info *ht_conf = bss_conf->ht_conf; + struct ieee80211_sta_ht_cap *ht_conf = bss_conf->ht_cap; struct ieee80211_ht_bss_info *ht_bss_conf = bss_conf->ht_bss_conf; struct iwl_ht_info *iwl_conf = &priv->current_ht_config; @@ -573,27 +573,27 @@ static void iwl4965_ht_conf(struct iwl_priv *priv, !!(ht_conf->cap & IEEE80211_HT_CAP_MAX_AMSDU); iwl_conf->supported_chan_width = - !!(ht_conf->cap & IEEE80211_HT_CAP_SUP_WIDTH); + !!(ht_conf->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40); iwl_conf->extension_chan_offset = - ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_SEC_OFFSET; + ht_bss_conf->bss_cap & IEEE80211_HT_PARAM_CHA_SEC_OFFSET; /* If no above or below channel supplied disable FAT channel */ - if (iwl_conf->extension_chan_offset != IEEE80211_HT_IE_CHA_SEC_ABOVE && - iwl_conf->extension_chan_offset != IEEE80211_HT_IE_CHA_SEC_BELOW) { - iwl_conf->extension_chan_offset = IEEE80211_HT_IE_CHA_SEC_NONE; + if (iwl_conf->extension_chan_offset != IEEE80211_HT_PARAM_CHA_SEC_ABOVE && + iwl_conf->extension_chan_offset != IEEE80211_HT_PARAM_CHA_SEC_BELOW) { + iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE; iwl_conf->supported_chan_width = 0; } iwl_conf->sm_ps = (u8)((ht_conf->cap & IEEE80211_HT_CAP_SM_PS) >> 2); - memcpy(iwl_conf->supp_mcs_set, ht_conf->supp_mcs_set, 16); + memcpy(&iwl_conf->mcs, &ht_conf->mcs, 16); iwl_conf->control_channel = ht_bss_conf->primary_channel; iwl_conf->tx_chan_width = - !!(ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_WIDTH); + !!(ht_bss_conf->bss_cap & IEEE80211_HT_PARAM_CHAN_WIDTH_ANY); iwl_conf->ht_protection = - ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_HT_PROTECTION; + ht_bss_conf->bss_op_mode & IEEE80211_HT_OP_MODE_PROTECTION; iwl_conf->non_GF_STA_present = - !!(ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_NON_GF_STA_PRSNT); + !!(ht_bss_conf->bss_op_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT); IWL_DEBUG_MAC80211("control channel %d\n", iwl_conf->control_channel); IWL_DEBUG_MAC80211("leave\n"); diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index 4c312c55f90..4678da447ff 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -382,10 +382,10 @@ void iwl_reset_qos(struct iwl_priv *priv) } EXPORT_SYMBOL(iwl_reset_qos); -#define MAX_BIT_RATE_40_MHZ 0x96 /* 150 Mbps */ -#define MAX_BIT_RATE_20_MHZ 0x48 /* 72 Mbps */ +#define MAX_BIT_RATE_40_MHZ 150 /* Mbps */ +#define MAX_BIT_RATE_20_MHZ 72 /* Mbps */ static void iwlcore_init_ht_hw_capab(const struct iwl_priv *priv, - struct ieee80211_ht_info *ht_info, + struct ieee80211_sta_ht_cap *ht_info, enum ieee80211_band band) { u16 max_bit_rate = 0; @@ -393,45 +393,46 @@ static void iwlcore_init_ht_hw_capab(const struct iwl_priv *priv, u8 tx_chains_num = priv->hw_params.tx_chains_num; ht_info->cap = 0; - memset(ht_info->supp_mcs_set, 0, 16); + memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); - ht_info->ht_supported = 1; + ht_info->ht_supported = true; - ht_info->cap |= (u16)IEEE80211_HT_CAP_GRN_FLD; - ht_info->cap |= (u16)IEEE80211_HT_CAP_SGI_20; - ht_info->cap |= (u16)(IEEE80211_HT_CAP_SM_PS & + ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD; + ht_info->cap |= IEEE80211_HT_CAP_SGI_20; + ht_info->cap |= (IEEE80211_HT_CAP_SM_PS & (WLAN_HT_CAP_SM_PS_DISABLED << 2)); max_bit_rate = MAX_BIT_RATE_20_MHZ; if (priv->hw_params.fat_channel & BIT(band)) { - ht_info->cap |= (u16)IEEE80211_HT_CAP_SUP_WIDTH; - ht_info->cap |= (u16)IEEE80211_HT_CAP_SGI_40; - ht_info->supp_mcs_set[4] = 0x01; + ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; + ht_info->cap |= IEEE80211_HT_CAP_SGI_40; + ht_info->mcs.rx_mask[4] = 0x01; max_bit_rate = MAX_BIT_RATE_40_MHZ; } if (priv->cfg->mod_params->amsdu_size_8K) - ht_info->cap |= (u16)IEEE80211_HT_CAP_MAX_AMSDU; + ht_info->cap |= IEEE80211_HT_CAP_MAX_AMSDU; ht_info->ampdu_factor = CFG_HT_RX_AMPDU_FACTOR_DEF; ht_info->ampdu_density = CFG_HT_MPDU_DENSITY_DEF; - ht_info->supp_mcs_set[0] = 0xFF; + ht_info->mcs.rx_mask[0] = 0xFF; if (rx_chains_num >= 2) - ht_info->supp_mcs_set[1] = 0xFF; + ht_info->mcs.rx_mask[1] = 0xFF; if (rx_chains_num >= 3) - ht_info->supp_mcs_set[2] = 0xFF; + ht_info->mcs.rx_mask[2] = 0xFF; /* Highest supported Rx data rate */ max_bit_rate *= rx_chains_num; - ht_info->supp_mcs_set[10] = (u8)(max_bit_rate & 0x00FF); - ht_info->supp_mcs_set[11] = (u8)((max_bit_rate & 0xFF00) >> 8); + WARN_ON(max_bit_rate & ~IEEE80211_HT_MCS_RX_HIGHEST_MASK); + ht_info->mcs.rx_highest = cpu_to_le16(max_bit_rate); /* Tx MCS capabilities */ - ht_info->supp_mcs_set[12] = IEEE80211_HT_CAP_MCS_TX_DEFINED; + ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; if (tx_chains_num != rx_chains_num) { - ht_info->supp_mcs_set[12] |= IEEE80211_HT_CAP_MCS_TX_RX_DIFF; - ht_info->supp_mcs_set[12] |= ((tx_chains_num - 1) << 2); + ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF; + ht_info->mcs.tx_params |= ((tx_chains_num - 1) << + IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT); } } @@ -495,7 +496,7 @@ static int iwlcore_init_geos(struct iwl_priv *priv) sband->n_bitrates = IWL_RATE_COUNT - IWL_FIRST_OFDM_RATE; if (priv->cfg->sku & IWL_SKU_N) - iwlcore_init_ht_hw_capab(priv, &sband->ht_info, + iwlcore_init_ht_hw_capab(priv, &sband->ht_cap, IEEE80211_BAND_5GHZ); sband = &priv->bands[IEEE80211_BAND_2GHZ]; @@ -505,7 +506,7 @@ static int iwlcore_init_geos(struct iwl_priv *priv) sband->n_bitrates = IWL_RATE_COUNT; if (priv->cfg->sku & IWL_SKU_N) - iwlcore_init_ht_hw_capab(priv, &sband->ht_info, + iwlcore_init_ht_hw_capab(priv, &sband->ht_cap, IEEE80211_BAND_2GHZ); priv->ieee_channels = channels; @@ -595,8 +596,8 @@ static void iwlcore_free_geos(struct iwl_priv *priv) static bool is_single_rx_stream(struct iwl_priv *priv) { return !priv->current_ht_config.is_ht || - ((priv->current_ht_config.supp_mcs_set[1] == 0) && - (priv->current_ht_config.supp_mcs_set[2] == 0)); + ((priv->current_ht_config.mcs.rx_mask[1] == 0) && + (priv->current_ht_config.mcs.rx_mask[2] == 0)); } static u8 iwl_is_channel_extension(struct iwl_priv *priv, @@ -609,10 +610,10 @@ static u8 iwl_is_channel_extension(struct iwl_priv *priv, if (!is_channel_valid(ch_info)) return 0; - if (extension_chan_offset == IEEE80211_HT_IE_CHA_SEC_ABOVE) + if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_ABOVE) return !(ch_info->fat_extension_channel & IEEE80211_CHAN_NO_FAT_ABOVE); - else if (extension_chan_offset == IEEE80211_HT_IE_CHA_SEC_BELOW) + else if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_BELOW) return !(ch_info->fat_extension_channel & IEEE80211_CHAN_NO_FAT_BELOW); @@ -620,18 +621,18 @@ static u8 iwl_is_channel_extension(struct iwl_priv *priv, } u8 iwl_is_fat_tx_allowed(struct iwl_priv *priv, - struct ieee80211_ht_info *sta_ht_inf) + struct ieee80211_sta_ht_cap *sta_ht_inf) { struct iwl_ht_info *iwl_ht_conf = &priv->current_ht_config; if ((!iwl_ht_conf->is_ht) || (iwl_ht_conf->supported_chan_width != IWL_CHANNEL_WIDTH_40MHZ) || - (iwl_ht_conf->extension_chan_offset == IEEE80211_HT_IE_CHA_SEC_NONE)) + (iwl_ht_conf->extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_NONE)) return 0; if (sta_ht_inf) { if ((!sta_ht_inf->ht_supported) || - (!(sta_ht_inf->cap & IEEE80211_HT_CAP_SUP_WIDTH))) + (!(sta_ht_inf->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40))) return 0; } @@ -671,13 +672,13 @@ void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info) /* Note: control channel is opposite of extension channel */ switch (ht_info->extension_chan_offset) { - case IEEE80211_HT_IE_CHA_SEC_ABOVE: + case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: rxon->flags &= ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK); break; - case IEEE80211_HT_IE_CHA_SEC_BELOW: + case IEEE80211_HT_PARAM_CHA_SEC_BELOW: rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; break; - case IEEE80211_HT_IE_CHA_SEC_NONE: + case IEEE80211_HT_PARAM_CHA_SEC_NONE: default: rxon->flags &= ~RXON_FLG_CHANNEL_MODE_MIXED_MSK; break; @@ -693,9 +694,9 @@ void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info) "rxon flags 0x%X operation mode :0x%X " "extension channel offset 0x%x " "control chan %d\n", - ht_info->supp_mcs_set[0], - ht_info->supp_mcs_set[1], - ht_info->supp_mcs_set[2], + ht_info->mcs.rx_mask[0], + ht_info->mcs.rx_mask[1], + ht_info->mcs.rx_mask[2], le32_to_cpu(rxon->flags), ht_info->ht_protection, ht_info->extension_chan_offset, ht_info->control_channel); diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h index 288b6a800e0..1a3ad8b1ebd 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.h +++ b/drivers/net/wireless/iwlwifi/iwl-core.h @@ -190,7 +190,7 @@ void iwl_set_rxon_chain(struct iwl_priv *priv); int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch); void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info); u8 iwl_is_fat_tx_allowed(struct iwl_priv *priv, - struct ieee80211_ht_info *sta_ht_inf); + struct ieee80211_sta_ht_cap *sta_ht_inf); int iwl_hw_nic_init(struct iwl_priv *priv); int iwl_setup_mac(struct iwl_priv *priv); int iwl_set_hw_params(struct iwl_priv *priv); diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h index 34306b6798e..572250ee9d5 100644 --- a/drivers/net/wireless/iwlwifi/iwl-dev.h +++ b/drivers/net/wireless/iwlwifi/iwl-dev.h @@ -411,7 +411,7 @@ struct iwl_ht_info { u8 max_amsdu_size; u8 ampdu_factor; u8 mpdu_density; - u8 supp_mcs_set[16]; + struct ieee80211_mcs_info mcs; /* BSS related data */ u8 control_channel; u8 extension_chan_offset; @@ -585,7 +585,7 @@ struct iwl_addsta_cmd; extern int iwl_send_add_sta(struct iwl_priv *priv, struct iwl_addsta_cmd *sta, u8 flags); extern u8 iwl_add_station_flags(struct iwl_priv *priv, const u8 *addr, - int is_ap, u8 flags, struct ieee80211_ht_info *ht_info); + int is_ap, u8 flags, struct ieee80211_sta_ht_cap *ht_info); extern void iwl4965_update_chain_flags(struct iwl_priv *priv); extern int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src); extern const u8 iwl_bcast_addr[ETH_ALEN]; diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c index 3b0bee331a3..78d16bd7b74 100644 --- a/drivers/net/wireless/iwlwifi/iwl-scan.c +++ b/drivers/net/wireless/iwlwifi/iwl-scan.c @@ -550,7 +550,7 @@ static void iwl_ht_cap_to_ie(const struct ieee80211_supported_band *sband, { struct ieee80211_ht_cap *ht_cap; - if (!sband || !sband->ht_info.ht_supported) + if (!sband || !sband->ht_cap.ht_supported) return; if (*left < sizeof(struct ieee80211_ht_cap)) @@ -559,12 +559,12 @@ static void iwl_ht_cap_to_ie(const struct ieee80211_supported_band *sband, *pos++ = sizeof(struct ieee80211_ht_cap); ht_cap = (struct ieee80211_ht_cap *) pos; - ht_cap->cap_info = cpu_to_le16(sband->ht_info.cap); - memcpy(ht_cap->supp_mcs_set, sband->ht_info.supp_mcs_set, 16); + ht_cap->cap_info = cpu_to_le16(sband->ht_cap.cap); + memcpy(&ht_cap->mcs, &sband->ht_cap.mcs, 16); ht_cap->ampdu_params_info = - (sband->ht_info.ampdu_factor & IEEE80211_HT_CAP_AMPDU_FACTOR) | - ((sband->ht_info.ampdu_density << 2) & - IEEE80211_HT_CAP_AMPDU_DENSITY); + (sband->ht_cap.ampdu_factor & IEEE80211_HT_AMPDU_PARM_FACTOR) | + ((sband->ht_cap.ampdu_density << 2) & + IEEE80211_HT_AMPDU_PARM_DENSITY); *left -= sizeof(struct ieee80211_ht_cap); } diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c index a28a8decc79..b9b8554433a 100644 --- a/drivers/net/wireless/iwlwifi/iwl-sta.c +++ b/drivers/net/wireless/iwlwifi/iwl-sta.c @@ -181,7 +181,7 @@ int iwl_send_add_sta(struct iwl_priv *priv, EXPORT_SYMBOL(iwl_send_add_sta); static void iwl_set_ht_add_station(struct iwl_priv *priv, u8 index, - struct ieee80211_ht_info *sta_ht_inf) + struct ieee80211_sta_ht_cap *sta_ht_inf) { __le32 sta_flags; u8 mimo_ps_mode; @@ -229,7 +229,7 @@ static void iwl_set_ht_add_station(struct iwl_priv *priv, u8 index, * iwl_add_station_flags - Add station to tables in driver and device */ u8 iwl_add_station_flags(struct iwl_priv *priv, const u8 *addr, int is_ap, - u8 flags, struct ieee80211_ht_info *ht_info) + u8 flags, struct ieee80211_sta_ht_cap *ht_info) { int i; int sta_id = IWL_INVALID_STATION; @@ -894,7 +894,7 @@ int iwl_rxon_add_station(struct iwl_priv *priv, const u8 *addr, int is_ap) /* Add station to device's station table */ struct ieee80211_conf *conf = &priv->hw->conf; - struct ieee80211_ht_info *cur_ht_config = &conf->ht_conf; + struct ieee80211_sta_ht_cap *cur_ht_config = &conf->ht_cap; if ((is_ap) && (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) && diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index e23d9a52d08..3f236b54668 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -563,19 +563,18 @@ static int __init init_mac80211_hwsim(void) data->band.n_channels = ARRAY_SIZE(hwsim_channels); data->band.bitrates = data->rates; data->band.n_bitrates = ARRAY_SIZE(hwsim_rates); - data->band.ht_info.ht_supported = 1; - data->band.ht_info.cap = IEEE80211_HT_CAP_SUP_WIDTH | + data->band.ht_cap.ht_supported = true; + data->band.ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 | IEEE80211_HT_CAP_GRN_FLD | IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_DSSSCCK40; - data->band.ht_info.ampdu_factor = 0x3; - data->band.ht_info.ampdu_density = 0x6; - memset(data->band.ht_info.supp_mcs_set, 0, - sizeof(data->band.ht_info.supp_mcs_set)); - data->band.ht_info.supp_mcs_set[0] = 0xff; - data->band.ht_info.supp_mcs_set[1] = 0xff; - data->band.ht_info.supp_mcs_set[12] = - IEEE80211_HT_CAP_MCS_TX_DEFINED; + data->band.ht_cap.ampdu_factor = 0x3; + data->band.ht_cap.ampdu_density = 0x6; + memset(&data->band.ht_cap.mcs, 0, + sizeof(data->band.ht_cap.mcs)); + data->band.ht_cap.mcs.rx_mask[0] = 0xff; + data->band.ht_cap.mcs.rx_mask[1] = 0xff; + data->band.ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &data->band; err = ieee80211_register_hw(hw); diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index 14126bc3664..64a4abce6d9 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -685,28 +685,88 @@ struct ieee80211_bar { #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL 0x0000 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004 + +#define IEEE80211_HT_MCS_MASK_LEN 10 + +/** + * struct ieee80211_mcs_info - MCS information + * @rx_mask: RX mask + * @rx_highest: highest supported RX rate + * @tx_params: TX parameters + */ +struct ieee80211_mcs_info { + u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN]; + __le16 rx_highest; + u8 tx_params; + u8 reserved[3]; +} __attribute__((packed)); + +/* 802.11n HT capability MSC set */ +#define IEEE80211_HT_MCS_RX_HIGHEST_MASK 0x3ff +#define IEEE80211_HT_MCS_TX_DEFINED 0x01 +#define IEEE80211_HT_MCS_TX_RX_DIFF 0x02 +/* value 0 == 1 stream etc */ +#define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK 0x0C +#define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT 2 +#define IEEE80211_HT_MCS_TX_MAX_STREAMS 4 +#define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION 0x10 + +/* + * 802.11n D5.0 20.3.5 / 20.6 says: + * - indices 0 to 7 and 32 are single spatial stream + * - 8 to 31 are multiple spatial streams using equal modulation + * [8..15 for two streams, 16..23 for three and 24..31 for four] + * - remainder are multiple spatial streams using unequal modulation + */ +#define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33 +#define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \ + (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8) + /** * struct ieee80211_ht_cap - HT capabilities * - * This structure refers to "HT capabilities element" as - * described in 802.11n draft section 7.3.2.52 + * This structure is the "HT capabilities element" as + * described in 802.11n D5.0 7.3.2.57 */ struct ieee80211_ht_cap { __le16 cap_info; u8 ampdu_params_info; - u8 supp_mcs_set[16]; + + /* 16 bytes MCS information */ + struct ieee80211_mcs_info mcs; + __le16 extended_ht_cap_info; __le32 tx_BF_cap_info; u8 antenna_selection_info; } __attribute__ ((packed)); +/* 802.11n HT capabilities masks (for cap_info) */ +#define IEEE80211_HT_CAP_LDPC_CODING 0x0001 +#define IEEE80211_HT_CAP_SUP_WIDTH_20_40 0x0002 +#define IEEE80211_HT_CAP_SM_PS 0x000C +#define IEEE80211_HT_CAP_GRN_FLD 0x0010 +#define IEEE80211_HT_CAP_SGI_20 0x0020 +#define IEEE80211_HT_CAP_SGI_40 0x0040 +#define IEEE80211_HT_CAP_TX_STBC 0x0080 +#define IEEE80211_HT_CAP_RX_STBC 0x0300 +#define IEEE80211_HT_CAP_DELAY_BA 0x0400 +#define IEEE80211_HT_CAP_MAX_AMSDU 0x0800 +#define IEEE80211_HT_CAP_DSSSCCK40 0x1000 +#define IEEE80211_HT_CAP_PSMP_SUPPORT 0x2000 +#define IEEE80211_HT_CAP_40MHZ_INTOLERANT 0x4000 +#define IEEE80211_HT_CAP_LSIG_TXOP_PROT 0x8000 + +/* 802.11n HT capability AMPDU settings (for ampdu_params_info) */ +#define IEEE80211_HT_AMPDU_PARM_FACTOR 0x03 +#define IEEE80211_HT_AMPDU_PARM_DENSITY 0x1C + /** - * struct ieee80211_ht_cap - HT additional information + * struct ieee80211_ht_info - HT information * - * This structure refers to "HT information element" as - * described in 802.11n draft section 7.3.2.53 + * This structure is the "HT information element" as + * described in 802.11n D5.0 7.3.2.58 */ -struct ieee80211_ht_addt_info { +struct ieee80211_ht_info { u8 control_chan; u8 ht_param; __le16 operation_mode; @@ -714,36 +774,33 @@ struct ieee80211_ht_addt_info { u8 basic_set[16]; } __attribute__ ((packed)); -/* 802.11n HT capabilities masks */ -#define IEEE80211_HT_CAP_SUP_WIDTH 0x0002 -#define IEEE80211_HT_CAP_SM_PS 0x000C -#define IEEE80211_HT_CAP_GRN_FLD 0x0010 -#define IEEE80211_HT_CAP_SGI_20 0x0020 -#define IEEE80211_HT_CAP_SGI_40 0x0040 -#define IEEE80211_HT_CAP_DELAY_BA 0x0400 -#define IEEE80211_HT_CAP_MAX_AMSDU 0x0800 -#define IEEE80211_HT_CAP_DSSSCCK40 0x1000 -/* 802.11n HT capability AMPDU settings */ -#define IEEE80211_HT_CAP_AMPDU_FACTOR 0x03 -#define IEEE80211_HT_CAP_AMPDU_DENSITY 0x1C -/* 802.11n HT capability MSC set */ -#define IEEE80211_SUPP_MCS_SET_UEQM 4 -#define IEEE80211_HT_CAP_MAX_STREAMS 4 -#define IEEE80211_SUPP_MCS_SET_LEN 10 -/* maximum streams the spec allows */ -#define IEEE80211_HT_CAP_MCS_TX_DEFINED 0x01 -#define IEEE80211_HT_CAP_MCS_TX_RX_DIFF 0x02 -#define IEEE80211_HT_CAP_MCS_TX_STREAMS 0x0C -#define IEEE80211_HT_CAP_MCS_TX_UEQM 0x10 -/* 802.11n HT IE masks */ -#define IEEE80211_HT_IE_CHA_SEC_OFFSET 0x03 -#define IEEE80211_HT_IE_CHA_SEC_NONE 0x00 -#define IEEE80211_HT_IE_CHA_SEC_ABOVE 0x01 -#define IEEE80211_HT_IE_CHA_SEC_BELOW 0x03 -#define IEEE80211_HT_IE_CHA_WIDTH 0x04 -#define IEEE80211_HT_IE_HT_PROTECTION 0x0003 -#define IEEE80211_HT_IE_NON_GF_STA_PRSNT 0x0004 -#define IEEE80211_HT_IE_NON_HT_STA_PRSNT 0x0010 +/* for ht_param */ +#define IEEE80211_HT_PARAM_CHA_SEC_OFFSET 0x03 +#define IEEE80211_HT_PARAM_CHA_SEC_NONE 0x00 +#define IEEE80211_HT_PARAM_CHA_SEC_ABOVE 0x01 +#define IEEE80211_HT_PARAM_CHA_SEC_BELOW 0x03 +#define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY 0x04 +#define IEEE80211_HT_PARAM_RIFS_MODE 0x08 +#define IEEE80211_HT_PARAM_SPSMP_SUPPORT 0x10 +#define IEEE80211_HT_PARAM_SERV_INTERVAL_GRAN 0xE0 + +/* for operation_mode */ +#define IEEE80211_HT_OP_MODE_PROTECTION 0x0003 +#define IEEE80211_HT_OP_MODE_PROTECTION_NONE 0 +#define IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER 1 +#define IEEE80211_HT_OP_MODE_PROTECTION_20MHZ 2 +#define IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED 3 +#define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT 0x0004 +#define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT 0x0010 + +/* for stbc_param */ +#define IEEE80211_HT_STBC_PARAM_DUAL_BEACON 0x0040 +#define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT 0x0080 +#define IEEE80211_HT_STBC_PARAM_STBC_BEACON 0x0100 +#define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT 0x0200 +#define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE 0x0400 +#define IEEE80211_HT_STBC_PARAM_PCO_PHASE 0x0800 + /* block-ack parameters */ #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002 @@ -949,7 +1006,7 @@ enum ieee80211_eid { WLAN_EID_EXT_SUPP_RATES = 50, /* 802.11n */ WLAN_EID_HT_CAPABILITY = 45, - WLAN_EID_HT_EXTRA_INFO = 61, + WLAN_EID_HT_INFORMATION = 61, /* 802.11i */ WLAN_EID_RSN = 48, WLAN_EID_WPA = 221, diff --git a/include/net/mac80211.h b/include/net/mac80211.h index d1466e7a47b..2870f3973f1 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -191,7 +191,7 @@ enum ieee80211_bss_change { * @beacon_int: beacon interval * @assoc_capability: capabilities taken from assoc resp * @assoc_ht: association in HT mode - * @ht_conf: ht capabilities + * @ht_cap: ht capabilities * @ht_bss_conf: ht extended capabilities * @basic_rates: bitmap of basic rates, each bit stands for an * index into the rate table configured by the driver in @@ -212,7 +212,7 @@ struct ieee80211_bss_conf { u64 basic_rates; /* ht related data */ bool assoc_ht; - struct ieee80211_ht_info *ht_conf; + struct ieee80211_sta_ht_cap *ht_cap; struct ieee80211_ht_bss_info *ht_bss_conf; }; @@ -477,7 +477,7 @@ static inline int __deprecated __IEEE80211_CONF_SHORT_SLOT_TIME(void) * @antenna_sel_tx: transmit antenna selection, 0: default/diversity, * 1/2: antenna 0/1 * @antenna_sel_rx: receive antenna selection, like @antenna_sel_tx - * @ht_conf: describes current self configuration of 802.11n HT capabilies + * @ht_cap: describes current self configuration of 802.11n HT capabilities * @ht_bss_conf: describes current BSS configuration of 802.11n HT parameters * @channel: the channel to tune to */ @@ -493,7 +493,7 @@ struct ieee80211_conf { struct ieee80211_channel *channel; - struct ieee80211_ht_info ht_conf; + struct ieee80211_sta_ht_cap ht_cap; struct ieee80211_ht_bss_info ht_bss_conf; }; @@ -687,7 +687,7 @@ enum set_key_cmd { * @addr: MAC address * @aid: AID we assigned to the station if we're an AP * @supp_rates: Bitmap of supported rates (per band) - * @ht_info: HT capabilities of this STA + * @ht_cap: HT capabilities of this STA * @drv_priv: data area for driver use, will always be aligned to * sizeof(void *), size is determined in hw information. */ @@ -695,7 +695,7 @@ struct ieee80211_sta { u64 supp_rates[IEEE80211_NUM_BANDS]; u8 addr[ETH_ALEN]; u16 aid; - struct ieee80211_ht_info ht_info; + struct ieee80211_sta_ht_cap ht_cap; /* must be last */ u8 drv_priv[0] __attribute__((__aligned__(sizeof(void *)))); diff --git a/include/net/wireless.h b/include/net/wireless.h index 721efb363db..c0aa0fb8db5 100644 --- a/include/net/wireless.h +++ b/include/net/wireless.h @@ -10,6 +10,7 @@ #include #include #include +#include #include /** @@ -133,23 +134,23 @@ struct ieee80211_rate { }; /** - * struct ieee80211_ht_info - describing STA's HT capabilities + * struct ieee80211_sta_ht_cap - STA's HT capabilities * * This structure describes most essential parameters needed * to describe 802.11n HT capabilities for an STA. * - * @ht_supported: is HT supported by STA, 0: no, 1: yes + * @ht_supported: is HT supported by the STA * @cap: HT capabilities map as described in 802.11n spec * @ampdu_factor: Maximum A-MPDU length factor * @ampdu_density: Minimum A-MPDU spacing - * @supp_mcs_set: Supported MCS set as described in 802.11n spec + * @mcs: Supported MCS rates */ -struct ieee80211_ht_info { +struct ieee80211_sta_ht_cap { u16 cap; /* use IEEE80211_HT_CAP_ */ - u8 ht_supported; + bool ht_supported; u8 ampdu_factor; u8 ampdu_density; - u8 supp_mcs_set[16]; + struct ieee80211_mcs_info mcs; }; /** @@ -173,7 +174,7 @@ struct ieee80211_supported_band { enum ieee80211_band band; int n_channels; int n_bitrates; - struct ieee80211_ht_info ht_info; + struct ieee80211_sta_ht_cap ht_cap; }; /** diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index cf3fd5d6066..a5dea617aab 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -633,10 +633,9 @@ static void sta_apply_parameters(struct ieee80211_local *local, sta->sta.supp_rates[local->oper_channel->band] = rates; } - if (params->ht_capa) { - ieee80211_ht_cap_ie_to_ht_info(params->ht_capa, - &sta->sta.ht_info); - } + if (params->ht_capa) + ieee80211_ht_cap_ie_to_sta_ht_cap(params->ht_capa, + &sta->sta.ht_cap); if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) { switch (params->plink_action) { diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c index b854483cf23..e2d121bf274 100644 --- a/net/mac80211/ht.c +++ b/net/mac80211/ht.c @@ -20,37 +20,33 @@ #include "sta_info.h" #include "wme.h" -int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie, - struct ieee80211_ht_info *ht_info) +void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_ht_cap *ht_cap_ie, + struct ieee80211_sta_ht_cap *ht_cap) { - if (ht_info == NULL) - return -EINVAL; + BUG_ON(!ht_cap); - memset(ht_info, 0, sizeof(*ht_info)); + memset(ht_cap, 0, sizeof(*ht_cap)); if (ht_cap_ie) { u8 ampdu_info = ht_cap_ie->ampdu_params_info; - ht_info->ht_supported = 1; - ht_info->cap = le16_to_cpu(ht_cap_ie->cap_info); - ht_info->ampdu_factor = - ampdu_info & IEEE80211_HT_CAP_AMPDU_FACTOR; - ht_info->ampdu_density = - (ampdu_info & IEEE80211_HT_CAP_AMPDU_DENSITY) >> 2; - memcpy(ht_info->supp_mcs_set, ht_cap_ie->supp_mcs_set, 16); + ht_cap->ht_supported = true; + ht_cap->cap = le16_to_cpu(ht_cap_ie->cap_info); + ht_cap->ampdu_factor = + ampdu_info & IEEE80211_HT_AMPDU_PARM_FACTOR; + ht_cap->ampdu_density = + (ampdu_info & IEEE80211_HT_AMPDU_PARM_DENSITY) >> 2; + memcpy(&ht_cap->mcs, &ht_cap_ie->mcs, sizeof(ht_cap->mcs)); } else - ht_info->ht_supported = 0; - - return 0; + ht_cap->ht_supported = false; } -int ieee80211_ht_addt_info_ie_to_ht_bss_info( - struct ieee80211_ht_addt_info *ht_add_info_ie, +void ieee80211_ht_info_ie_to_ht_bss_info( + struct ieee80211_ht_info *ht_add_info_ie, struct ieee80211_ht_bss_info *bss_info) { - if (bss_info == NULL) - return -EINVAL; + BUG_ON(!bss_info); memset(bss_info, 0, sizeof(*bss_info)); @@ -62,8 +58,119 @@ int ieee80211_ht_addt_info_ie_to_ht_bss_info( bss_info->bss_cap = ht_add_info_ie->ht_param; bss_info->bss_op_mode = (u8)(op_mode & 0xff); } +} + +/* + * ieee80211_handle_ht should be called only after the operating band + * has been determined as ht configuration depends on the hw's + * HT abilities for a specific band. + */ +u32 ieee80211_handle_ht(struct ieee80211_local *local, + struct ieee80211_sta_ht_cap *req_ht_cap, + struct ieee80211_ht_bss_info *req_bss_cap) +{ + struct ieee80211_conf *conf = &local->hw.conf; + struct ieee80211_supported_band *sband; + struct ieee80211_sta_ht_cap ht_cap; + struct ieee80211_ht_bss_info ht_bss_conf; + u32 changed = 0; + int i; + u8 max_tx_streams; + u8 tx_mcs_set_cap; + bool enable_ht = true; + + sband = local->hw.wiphy->bands[conf->channel->band]; + + memset(&ht_cap, 0, sizeof(ht_cap)); + memset(&ht_bss_conf, 0, sizeof(struct ieee80211_ht_bss_info)); + + /* HT is not supported */ + if (!sband->ht_cap.ht_supported) + enable_ht = false; + + /* disable HT */ + if (!enable_ht) { + if (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) + changed |= BSS_CHANGED_HT; + conf->flags &= ~IEEE80211_CONF_SUPPORT_HT_MODE; + conf->ht_cap.ht_supported = false; + return changed; + } + + + if (!(conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE)) + changed |= BSS_CHANGED_HT; + + conf->flags |= IEEE80211_CONF_SUPPORT_HT_MODE; + ht_cap.ht_supported = true; + + ht_cap.cap = req_ht_cap->cap & sband->ht_cap.cap; + ht_cap.cap &= ~IEEE80211_HT_CAP_SM_PS; + ht_cap.cap |= sband->ht_cap.cap & IEEE80211_HT_CAP_SM_PS; + + ht_bss_conf.primary_channel = req_bss_cap->primary_channel; + ht_bss_conf.bss_cap = req_bss_cap->bss_cap; + ht_bss_conf.bss_op_mode = req_bss_cap->bss_op_mode; + + ht_cap.ampdu_factor = req_ht_cap->ampdu_factor; + ht_cap.ampdu_density = req_ht_cap->ampdu_density; + + /* own MCS TX capabilities */ + tx_mcs_set_cap = sband->ht_cap.mcs.tx_params; + + /* + * configure supported Tx MCS according to requested MCS + * (based in most cases on Rx capabilities of peer) and self + * Tx MCS capabilities (as defined by low level driver HW + * Tx capabilities) + */ + + /* can we TX with MCS rates? */ + if (!(tx_mcs_set_cap & IEEE80211_HT_MCS_TX_DEFINED)) + goto check_changed; + + /* Counting from 0, therefore +1 */ + if (tx_mcs_set_cap & IEEE80211_HT_MCS_TX_RX_DIFF) + max_tx_streams = + ((tx_mcs_set_cap & IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK) + >> IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT) + 1; + else + max_tx_streams = IEEE80211_HT_MCS_TX_MAX_STREAMS; + + /* + * 802.11n D5.0 20.3.5 / 20.6 says: + * - indices 0 to 7 and 32 are single spatial stream + * - 8 to 31 are multiple spatial streams using equal modulation + * [8..15 for two streams, 16..23 for three and 24..31 for four] + * - remainder are multiple spatial streams using unequal modulation + */ + for (i = 0; i < max_tx_streams; i++) + ht_cap.mcs.rx_mask[i] = + sband->ht_cap.mcs.rx_mask[i] & + req_ht_cap->mcs.rx_mask[i]; + + if (tx_mcs_set_cap & IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION) + for (i = IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE; + i < IEEE80211_HT_MCS_MASK_LEN; i++) + ht_cap.mcs.rx_mask[i] = + sband->ht_cap.mcs.rx_mask[i] & + req_ht_cap->mcs.rx_mask[i]; + + /* handle MCS rate 32 too */ + if (sband->ht_cap.mcs.rx_mask[32/8] & + req_ht_cap->mcs.rx_mask[32/8] & 1) + ht_cap.mcs.rx_mask[32/8] |= 1; + + check_changed: + /* if bss configuration changed store the new one */ + if (memcmp(&conf->ht_cap, &ht_cap, sizeof(ht_cap)) || + memcmp(&conf->ht_bss_conf, &ht_bss_conf, sizeof(ht_bss_conf))) { + changed |= BSS_CHANGED_HT; + memcpy(&conf->ht_cap, &ht_cap, sizeof(ht_cap)); + memcpy(&conf->ht_bss_conf, &ht_bss_conf, sizeof(ht_bss_conf)); + } - return 0; + return changed; } static void ieee80211_send_addba_request(struct ieee80211_sub_if_data *sdata, @@ -794,7 +901,7 @@ void ieee80211_process_addba_request(struct ieee80211_local *local, * check if configuration can support the BA policy * and if buffer size does not exceeds max value */ if (((ba_policy != 1) - && (!(conf->ht_conf.cap & IEEE80211_HT_CAP_DELAY_BA))) + && (!(conf->ht_cap.cap & IEEE80211_HT_CAP_DELAY_BA))) || (buf_size > IEEE80211_MAX_AMPDU_BUF)) { status = WLAN_STATUS_INVALID_QOS_PARAM; #ifdef CONFIG_MAC80211_HT_DEBUG @@ -812,7 +919,7 @@ void ieee80211_process_addba_request(struct ieee80211_local *local, sband = local->hw.wiphy->bands[conf->channel->band]; buf_size = IEEE80211_MIN_AMPDU_BUF; - buf_size = buf_size << sband->ht_info.ampdu_factor; + buf_size = buf_size << sband->ht_cap.ampdu_factor; } diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index f49cb9e8bb4..ae4ca3e8b44 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -817,7 +817,7 @@ struct ieee802_11_elems { u8 *wmm_info; u8 *wmm_param; struct ieee80211_ht_cap *ht_cap_elem; - struct ieee80211_ht_addt_info *ht_info_elem; + struct ieee80211_ht_info *ht_info_elem; u8 *mesh_config; u8 *mesh_id; u8 *peer_link; @@ -880,9 +880,6 @@ static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr) int ieee80211_hw_config(struct ieee80211_local *local); int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed); void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx); -u32 ieee80211_handle_ht(struct ieee80211_local *local, int enable_ht, - struct ieee80211_ht_info *req_ht_cap, - struct ieee80211_ht_bss_info *req_bss_cap); void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, u32 changed); void ieee80211_configure_filter(struct ieee80211_local *local); @@ -963,11 +960,14 @@ int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev); int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev); /* HT */ -int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie, - struct ieee80211_ht_info *ht_info); -int ieee80211_ht_addt_info_ie_to_ht_bss_info( - struct ieee80211_ht_addt_info *ht_add_info_ie, +void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_ht_cap *ht_cap_ie, + struct ieee80211_sta_ht_cap *ht_cap); +void ieee80211_ht_info_ie_to_ht_bss_info( + struct ieee80211_ht_info *ht_add_info_ie, struct ieee80211_ht_bss_info *bss_info); +u32 ieee80211_handle_ht(struct ieee80211_local *local, + struct ieee80211_sta_ht_cap *req_ht_cap, + struct ieee80211_ht_bss_info *req_bss_cap); void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn); void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *da, diff --git a/net/mac80211/main.c b/net/mac80211/main.c index c427954fe8e..07f812755e5 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -232,100 +232,6 @@ int ieee80211_hw_config(struct ieee80211_local *local) return ret; } -/** - * ieee80211_handle_ht should be used only after legacy configuration - * has been determined namely band, as ht configuration depends upon - * the hardware's HT abilities for a _specific_ band. - */ -u32 ieee80211_handle_ht(struct ieee80211_local *local, int enable_ht, - struct ieee80211_ht_info *req_ht_cap, - struct ieee80211_ht_bss_info *req_bss_cap) -{ - struct ieee80211_conf *conf = &local->hw.conf; - struct ieee80211_supported_band *sband; - struct ieee80211_ht_info ht_conf; - struct ieee80211_ht_bss_info ht_bss_conf; - u32 changed = 0; - int i; - u8 max_tx_streams = IEEE80211_HT_CAP_MAX_STREAMS; - u8 tx_mcs_set_cap; - - sband = local->hw.wiphy->bands[conf->channel->band]; - - memset(&ht_conf, 0, sizeof(struct ieee80211_ht_info)); - memset(&ht_bss_conf, 0, sizeof(struct ieee80211_ht_bss_info)); - - /* HT is not supported */ - if (!sband->ht_info.ht_supported) { - conf->flags &= ~IEEE80211_CONF_SUPPORT_HT_MODE; - goto out; - } - - /* disable HT */ - if (!enable_ht) { - if (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) - changed |= BSS_CHANGED_HT; - conf->flags &= ~IEEE80211_CONF_SUPPORT_HT_MODE; - conf->ht_conf.ht_supported = 0; - goto out; - } - - - if (!(conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE)) - changed |= BSS_CHANGED_HT; - - conf->flags |= IEEE80211_CONF_SUPPORT_HT_MODE; - ht_conf.ht_supported = 1; - - ht_conf.cap = req_ht_cap->cap & sband->ht_info.cap; - ht_conf.cap &= ~(IEEE80211_HT_CAP_SM_PS); - ht_conf.cap |= sband->ht_info.cap & IEEE80211_HT_CAP_SM_PS; - ht_bss_conf.primary_channel = req_bss_cap->primary_channel; - ht_bss_conf.bss_cap = req_bss_cap->bss_cap; - ht_bss_conf.bss_op_mode = req_bss_cap->bss_op_mode; - - ht_conf.ampdu_factor = req_ht_cap->ampdu_factor; - ht_conf.ampdu_density = req_ht_cap->ampdu_density; - - /* Bits 96-100 */ - tx_mcs_set_cap = sband->ht_info.supp_mcs_set[12]; - - /* configure suppoerted Tx MCS according to requested MCS - * (based in most cases on Rx capabilities of peer) and self - * Tx MCS capabilities (as defined by low level driver HW - * Tx capabilities) */ - if (!(tx_mcs_set_cap & IEEE80211_HT_CAP_MCS_TX_DEFINED)) - goto check_changed; - - /* Counting from 0 therfore + 1 */ - if (tx_mcs_set_cap & IEEE80211_HT_CAP_MCS_TX_RX_DIFF) - max_tx_streams = ((tx_mcs_set_cap & - IEEE80211_HT_CAP_MCS_TX_STREAMS) >> 2) + 1; - - for (i = 0; i < max_tx_streams; i++) - ht_conf.supp_mcs_set[i] = - sband->ht_info.supp_mcs_set[i] & - req_ht_cap->supp_mcs_set[i]; - - if (tx_mcs_set_cap & IEEE80211_HT_CAP_MCS_TX_UEQM) - for (i = IEEE80211_SUPP_MCS_SET_UEQM; - i < IEEE80211_SUPP_MCS_SET_LEN; i++) - ht_conf.supp_mcs_set[i] = - sband->ht_info.supp_mcs_set[i] & - req_ht_cap->supp_mcs_set[i]; - -check_changed: - /* if bss configuration changed store the new one */ - if (memcmp(&conf->ht_conf, &ht_conf, sizeof(ht_conf)) || - memcmp(&conf->ht_bss_conf, &ht_bss_conf, sizeof(ht_bss_conf))) { - changed |= BSS_CHANGED_HT; - memcpy(&conf->ht_conf, &ht_conf, sizeof(ht_conf)); - memcpy(&conf->ht_bss_conf, &ht_bss_conf, sizeof(ht_bss_conf)); - } -out: - return changed; -} - void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, u32 changed) { diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 829995e740a..196dd39f628 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -236,7 +236,7 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata, struct ieee80211_local *local = sdata->local; struct sk_buff *skb; struct ieee80211_mgmt *mgmt; - u8 *pos, *ies, *ht_add_ie; + u8 *pos, *ies, *ht_ie; int i, len, count, rates_len, supp_rates_len; u16 capab; struct ieee80211_bss *bss; @@ -393,24 +393,25 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata, /* wmm support is a must to HT */ if (wmm && (ifsta->flags & IEEE80211_STA_WMM_ENABLED) && - sband->ht_info.ht_supported && - (ht_add_ie = ieee80211_bss_get_ie(bss, WLAN_EID_HT_EXTRA_INFO))) { - struct ieee80211_ht_addt_info *ht_add_info = - (struct ieee80211_ht_addt_info *)ht_add_ie; - u16 cap = sband->ht_info.cap; + sband->ht_cap.ht_supported && + (ht_ie = ieee80211_bss_get_ie(bss, WLAN_EID_HT_INFORMATION)) && + ht_ie[1] >= sizeof(struct ieee80211_ht_info)) { + struct ieee80211_ht_info *ht_info = + (struct ieee80211_ht_info *)(ht_ie + 2); + u16 cap = sband->ht_cap.cap; __le16 tmp; u32 flags = local->hw.conf.channel->flags; - switch (ht_add_info->ht_param & IEEE80211_HT_IE_CHA_SEC_OFFSET) { - case IEEE80211_HT_IE_CHA_SEC_ABOVE: + switch (ht_info->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { + case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: if (flags & IEEE80211_CHAN_NO_FAT_ABOVE) { - cap &= ~IEEE80211_HT_CAP_SUP_WIDTH; + cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; cap &= ~IEEE80211_HT_CAP_SGI_40; } break; - case IEEE80211_HT_IE_CHA_SEC_BELOW: + case IEEE80211_HT_PARAM_CHA_SEC_BELOW: if (flags & IEEE80211_CHAN_NO_FAT_BELOW) { - cap &= ~IEEE80211_HT_CAP_SUP_WIDTH; + cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; cap &= ~IEEE80211_HT_CAP_SGI_40; } break; @@ -424,9 +425,9 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata, memcpy(pos, &tmp, sizeof(u16)); pos += sizeof(u16); /* TODO: needs a define here for << 2 */ - *pos++ = sband->ht_info.ampdu_factor | - (sband->ht_info.ampdu_density << 2); - memcpy(pos, sband->ht_info.supp_mcs_set, 16); + *pos++ = sband->ht_cap.ampdu_factor | + (sband->ht_cap.ampdu_density << 2); + memcpy(pos, &sband->ht_cap.mcs, sizeof(sband->ht_cap.mcs)); } kfree(ifsta->assocreq_ies); @@ -730,7 +731,7 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, if (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) { changed |= BSS_CHANGED_HT; sdata->bss_conf.assoc_ht = 1; - sdata->bss_conf.ht_conf = &conf->ht_conf; + sdata->bss_conf.ht_cap = &conf->ht_cap; sdata->bss_conf.ht_bss_conf = &conf->ht_bss_conf; } @@ -850,7 +851,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, changed |= BSS_CHANGED_HT; sdata->bss_conf.assoc_ht = 0; - sdata->bss_conf.ht_conf = NULL; + sdata->bss_conf.ht_cap = NULL; sdata->bss_conf.ht_bss_conf = NULL; ieee80211_led_assoc(local, 0); @@ -1335,11 +1336,11 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, if (elems.ht_cap_elem && elems.ht_info_elem && elems.wmm_param && (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) { struct ieee80211_ht_bss_info bss_info; - ieee80211_ht_cap_ie_to_ht_info( - elems.ht_cap_elem, &sta->sta.ht_info); - ieee80211_ht_addt_info_ie_to_ht_bss_info( + ieee80211_ht_cap_ie_to_sta_ht_cap( + elems.ht_cap_elem, &sta->sta.ht_cap); + ieee80211_ht_info_ie_to_ht_bss_info( elems.ht_info_elem, &bss_info); - ieee80211_handle_ht(local, 1, &sta->sta.ht_info, &bss_info); + ieee80211_handle_ht(local, &sta->sta.ht_cap, &bss_info); } rate_control_rate_init(sta); @@ -1696,9 +1697,9 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, elems.wmm_param && conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) { struct ieee80211_ht_bss_info bss_info; - ieee80211_ht_addt_info_ie_to_ht_bss_info( + ieee80211_ht_info_ie_to_ht_bss_info( elems.ht_info_elem, &bss_info); - changed |= ieee80211_handle_ht(local, 1, &conf->ht_conf, + changed |= ieee80211_handle_ht(local, &conf->ht_cap, &bss_info); } diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 1b605457017..9941a60a232 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -532,8 +532,8 @@ void ieee802_11_parse_elems(u8 *start, size_t len, if (elen >= sizeof(struct ieee80211_ht_cap)) elems->ht_cap_elem = (void *)pos; break; - case WLAN_EID_HT_EXTRA_INFO: - if (elen >= sizeof(struct ieee80211_ht_addt_info)) + case WLAN_EID_HT_INFORMATION: + if (elen >= sizeof(struct ieee80211_ht_info)) elems->ht_info_elem = (void *)pos; break; case WLAN_EID_MESH_ID: diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c index 29c41040c8c..a3af1514124 100644 --- a/net/mac80211/wext.c +++ b/net/mac80211/wext.c @@ -147,7 +147,7 @@ static int ieee80211_ioctl_giwname(struct net_device *dev, sband = local->hw.wiphy->bands[IEEE80211_BAND_5GHZ]; if (sband) { is_a = 1; - is_ht |= sband->ht_info.ht_supported; + is_ht |= sband->ht_cap.ht_supported; } sband = local->hw.wiphy->bands[IEEE80211_BAND_2GHZ]; @@ -160,7 +160,7 @@ static int ieee80211_ioctl_giwname(struct net_device *dev, if (sband->bitrates[i].bitrate == 60) is_g = 1; } - is_ht |= sband->ht_info.ht_supported; + is_ht |= sband->ht_cap.ht_supported; } strcpy(name, "IEEE 802.11"); -- cgit v1.2.3-70-g09d2 From e8975581f63870be42ff4662b293d1b0c8c21350 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 9 Oct 2008 12:18:51 +0200 Subject: mac80211: introduce hw config change flags This makes mac80211 notify the driver which configuration actually changed, e.g. channel etc. No driver changes, this is just plumbing, driver authors are expected to act on this if they want to. Also remove the HW CONFIG debug printk, it's incorrect, often we configure something else. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- drivers/net/wireless/adm8211.c | 3 ++- drivers/net/wireless/ath5k/base.c | 7 +++---- drivers/net/wireless/ath9k/main.c | 4 ++-- drivers/net/wireless/b43/main.c | 3 ++- drivers/net/wireless/b43legacy/main.c | 3 ++- drivers/net/wireless/iwlwifi/iwl-agn.c | 3 ++- drivers/net/wireless/iwlwifi/iwl3945-base.c | 7 ++++--- drivers/net/wireless/libertas_tf/main.c | 4 +++- drivers/net/wireless/mac80211_hwsim.c | 4 ++-- drivers/net/wireless/p54/p54common.c | 3 ++- drivers/net/wireless/rt2x00/rt2x00.h | 2 +- drivers/net/wireless/rt2x00/rt2x00dev.c | 2 +- drivers/net/wireless/rt2x00/rt2x00mac.c | 3 ++- drivers/net/wireless/rtl8180_dev.c | 3 ++- drivers/net/wireless/rtl8187_dev.c | 3 ++- drivers/net/wireless/zd1211rw/zd_mac.c | 4 +++- include/net/mac80211.h | 30 ++++++++++++++++++++++++----- net/mac80211/cfg.c | 3 ++- net/mac80211/ieee80211_i.h | 2 +- net/mac80211/iface.c | 25 ++++++++++++++++++------ net/mac80211/main.c | 29 +++++++++++++++------------- net/mac80211/scan.c | 12 +++++++++--- net/mac80211/util.c | 3 ++- net/mac80211/wext.c | 14 +++++++------- 24 files changed, 116 insertions(+), 60 deletions(-) (limited to 'net/mac80211/wext.c') diff --git a/drivers/net/wireless/adm8211.c b/drivers/net/wireless/adm8211.c index 6e18c9d3678..9a1e0c514c0 100644 --- a/drivers/net/wireless/adm8211.c +++ b/drivers/net/wireless/adm8211.c @@ -1314,9 +1314,10 @@ static int adm8211_set_ssid(struct ieee80211_hw *dev, u8 *ssid, size_t ssid_len) return 0; } -static int adm8211_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf) +static int adm8211_config(struct ieee80211_hw *dev, u32 changed) { struct adm8211_priv *priv = dev->priv; + struct ieee80211_conf *conf = &dev->conf; int channel = ieee80211_frequency_to_channel(conf->channel->center_freq); if (channel != priv->channel) { diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c index 9e47d727e22..fcd688765d0 100644 --- a/drivers/net/wireless/ath5k/base.c +++ b/drivers/net/wireless/ath5k/base.c @@ -219,8 +219,7 @@ static int ath5k_add_interface(struct ieee80211_hw *hw, struct ieee80211_if_init_conf *conf); static void ath5k_remove_interface(struct ieee80211_hw *hw, struct ieee80211_if_init_conf *conf); -static int ath5k_config(struct ieee80211_hw *hw, - struct ieee80211_conf *conf); +static int ath5k_config(struct ieee80211_hw *hw, u32 changed); static int ath5k_config_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_if_conf *conf); @@ -2780,10 +2779,10 @@ end: * TODO: Phy disable/diversity etc */ static int -ath5k_config(struct ieee80211_hw *hw, - struct ieee80211_conf *conf) +ath5k_config(struct ieee80211_hw *hw, u32 changed) { struct ath5k_softc *sc = hw->priv; + struct ieee80211_conf *conf = &hw->conf; sc->bintval = conf->beacon_int; sc->power_level = conf->power_level; diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c index 5e087c92a6d..f49910799ed 100644 --- a/drivers/net/wireless/ath9k/main.c +++ b/drivers/net/wireless/ath9k/main.c @@ -1230,11 +1230,11 @@ static void ath9k_remove_interface(struct ieee80211_hw *hw, __func__, error); } -static int ath9k_config(struct ieee80211_hw *hw, - struct ieee80211_conf *conf) +static int ath9k_config(struct ieee80211_hw *hw, u32 changed) { struct ath_softc *sc = hw->priv; struct ieee80211_channel *curchan = hw->conf.channel; + struct ieee80211_conf *conf = &hw->conf; int pos; DPRINTF(sc, ATH_DBG_CONFIG, "%s: Set channel: %d MHz\n", diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index 6b85428b0e1..2e81af1022e 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -3320,11 +3320,12 @@ init_failure: return err; } -static int b43_op_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf) +static int b43_op_config(struct ieee80211_hw *hw, u32 changed) { struct b43_wl *wl = hw_to_b43_wl(hw); struct b43_wldev *dev; struct b43_phy *phy; + struct ieee80211_conf *conf = &hw->conf; unsigned long flags; int antenna; int err = 0; diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c index 867f01ce45c..793cc396562 100644 --- a/drivers/net/wireless/b43legacy/main.c +++ b/drivers/net/wireless/b43legacy/main.c @@ -2557,11 +2557,12 @@ init_failure: } static int b43legacy_op_dev_config(struct ieee80211_hw *hw, - struct ieee80211_conf *conf) + u32 changed) { struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw); struct b43legacy_wldev *dev; struct b43legacy_phy *phy; + struct ieee80211_conf *conf = &hw->conf; unsigned long flags; unsigned int new_phymode = 0xFFFF; int antenna_tx; diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index e6695e80fb5..79a24410dd0 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -2734,10 +2734,11 @@ static int iwl4965_mac_add_interface(struct ieee80211_hw *hw, * be set inappropriately and the driver currently sets the hardware up to * use it whenever needed. */ -static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf) +static int iwl4965_mac_config(struct ieee80211_hw *hw, u32 changed) { struct iwl_priv *priv = hw->priv; const struct iwl_channel_info *ch_info; + struct ieee80211_conf *conf = &hw->conf; unsigned long flags; int ret = 0; u16 channel; diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c index d3a2966d918..b1464c71ea0 100644 --- a/drivers/net/wireless/iwlwifi/iwl3945-base.c +++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c @@ -6415,7 +6415,7 @@ static void iwl3945_bg_abort_scan(struct work_struct *work) mutex_unlock(&priv->mutex); } -static int iwl3945_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf); +static int iwl3945_mac_config(struct ieee80211_hw *hw, u32 changed); static void iwl3945_bg_scan_completed(struct work_struct *work) { @@ -6428,7 +6428,7 @@ static void iwl3945_bg_scan_completed(struct work_struct *work) return; if (test_bit(STATUS_CONF_PENDING, &priv->status)) - iwl3945_mac_config(priv->hw, ieee80211_get_hw_conf(priv->hw)); + iwl3945_mac_config(priv->hw, 0); ieee80211_scan_completed(priv->hw); @@ -6616,10 +6616,11 @@ static int iwl3945_mac_add_interface(struct ieee80211_hw *hw, * be set inappropriately and the driver currently sets the hardware up to * use it whenever needed. */ -static int iwl3945_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf) +static int iwl3945_mac_config(struct ieee80211_hw *hw, u32 changed) { struct iwl3945_priv *priv = hw->priv; const struct iwl3945_channel_info *ch_info; + struct ieee80211_conf *conf = &hw->conf; unsigned long flags; int ret = 0; diff --git a/drivers/net/wireless/libertas_tf/main.c b/drivers/net/wireless/libertas_tf/main.c index feff945ad85..241ddcfa352 100644 --- a/drivers/net/wireless/libertas_tf/main.c +++ b/drivers/net/wireless/libertas_tf/main.c @@ -354,9 +354,11 @@ static void lbtf_op_remove_interface(struct ieee80211_hw *hw, priv->vif = NULL; } -static int lbtf_op_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf) +static int lbtf_op_config(struct ieee80211_hw *hw, u32 changed) { struct lbtf_private *priv = hw->priv; + struct ieee80211_conf *conf = &hw->conf; + if (conf->channel->center_freq != priv->cur_freq) { priv->cur_freq = conf->channel->center_freq; lbtf_set_channel(priv, conf->channel->hw_value); diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index 3f236b54668..e2aeef8de70 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -359,10 +359,10 @@ static void mac80211_hwsim_beacon(unsigned long arg) } -static int mac80211_hwsim_config(struct ieee80211_hw *hw, - struct ieee80211_conf *conf) +static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed) { struct mac80211_hwsim_data *data = hw->priv; + struct ieee80211_conf *conf = &hw->conf; printk(KERN_DEBUG "%s:%s (freq=%d radio_enabled=%d beacon_int=%d)\n", wiphy_name(hw->wiphy), __func__, diff --git a/drivers/net/wireless/p54/p54common.c b/drivers/net/wireless/p54/p54common.c index b3e75eb4d5b..b3c297ed00c 100644 --- a/drivers/net/wireless/p54/p54common.c +++ b/drivers/net/wireless/p54/p54common.c @@ -1192,10 +1192,11 @@ static void p54_remove_interface(struct ieee80211_hw *dev, p54_set_filter(dev, 0, NULL); } -static int p54_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf) +static int p54_config(struct ieee80211_hw *dev, u32 changed) { int ret; struct p54_common *priv = dev->priv; + struct ieee80211_conf *conf = &dev->conf; mutex_lock(&priv->conf_mutex); priv->rx_antenna = 2; /* automatic */ diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h index 1359a376840..8ec8f7e9ec6 100644 --- a/drivers/net/wireless/rt2x00/rt2x00.h +++ b/drivers/net/wireless/rt2x00/rt2x00.h @@ -997,7 +997,7 @@ int rt2x00mac_add_interface(struct ieee80211_hw *hw, struct ieee80211_if_init_conf *conf); void rt2x00mac_remove_interface(struct ieee80211_hw *hw, struct ieee80211_if_init_conf *conf); -int rt2x00mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf); +int rt2x00mac_config(struct ieee80211_hw *hw, u32 changed); int rt2x00mac_config_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_if_conf *conf); diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c index 9e0472bd1ed..697806cf94e 100644 --- a/drivers/net/wireless/rt2x00/rt2x00dev.c +++ b/drivers/net/wireless/rt2x00/rt2x00dev.c @@ -1245,7 +1245,7 @@ int rt2x00lib_resume(struct rt2x00_dev *rt2x00dev) /* * Reconfigure device. */ - retval = rt2x00mac_config(rt2x00dev->hw, &rt2x00dev->hw->conf); + retval = rt2x00mac_config(rt2x00dev->hw, ~0); if (retval) goto exit; diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c index 2c6cc5c374f..da7b49a364f 100644 --- a/drivers/net/wireless/rt2x00/rt2x00mac.c +++ b/drivers/net/wireless/rt2x00/rt2x00mac.c @@ -335,9 +335,10 @@ void rt2x00mac_remove_interface(struct ieee80211_hw *hw, } EXPORT_SYMBOL_GPL(rt2x00mac_remove_interface); -int rt2x00mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf) +int rt2x00mac_config(struct ieee80211_hw *hw, u32 changed) { struct rt2x00_dev *rt2x00dev = hw->priv; + struct ieee80211_conf *conf = &hw->conf; int radio_on; int status; diff --git a/drivers/net/wireless/rtl8180_dev.c b/drivers/net/wireless/rtl8180_dev.c index 9de8f57486d..e8d22393797 100644 --- a/drivers/net/wireless/rtl8180_dev.c +++ b/drivers/net/wireless/rtl8180_dev.c @@ -692,9 +692,10 @@ static void rtl8180_remove_interface(struct ieee80211_hw *dev, priv->vif = NULL; } -static int rtl8180_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf) +static int rtl8180_config(struct ieee80211_hw *dev, u32 changed) { struct rtl8180_priv *priv = dev->priv; + struct ieee80211_conf *conf = &dev->conf; priv->rf->set_chan(dev, conf); diff --git a/drivers/net/wireless/rtl8187_dev.c b/drivers/net/wireless/rtl8187_dev.c index 9ceae9017f8..2c69ab37c65 100644 --- a/drivers/net/wireless/rtl8187_dev.c +++ b/drivers/net/wireless/rtl8187_dev.c @@ -873,9 +873,10 @@ static void rtl8187_remove_interface(struct ieee80211_hw *dev, mutex_unlock(&priv->conf_mutex); } -static int rtl8187_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf) +static int rtl8187_config(struct ieee80211_hw *dev, u32 changed) { struct rtl8187_priv *priv = dev->priv; + struct ieee80211_conf *conf = &dev->conf; u32 reg; mutex_lock(&priv->conf_mutex); diff --git a/drivers/net/wireless/zd1211rw/zd_mac.c b/drivers/net/wireless/zd1211rw/zd_mac.c index de45509d757..6c3e21887fc 100644 --- a/drivers/net/wireless/zd1211rw/zd_mac.c +++ b/drivers/net/wireless/zd1211rw/zd_mac.c @@ -743,9 +743,11 @@ static void zd_op_remove_interface(struct ieee80211_hw *hw, zd_write_mac_addr(&mac->chip, NULL); } -static int zd_op_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf) +static int zd_op_config(struct ieee80211_hw *hw, u32 changed) { struct zd_mac *mac = zd_hw_mac(hw); + struct ieee80211_conf *conf = &hw->conf; + return zd_chip_set_channel(&mac->chip, conf->channel->hw_value); } diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 5f28b7f8988..34e8569b59b 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -463,13 +463,33 @@ static inline int __deprecated __IEEE80211_CONF_SHORT_SLOT_TIME(void) } #define IEEE80211_CONF_SHORT_SLOT_TIME (__IEEE80211_CONF_SHORT_SLOT_TIME()) +/** + * enum ieee80211_conf_changed - denotes which configuration changed + * + * @IEEE80211_CONF_CHANGE_RADIO_ENABLED: the value of radio_enabled changed + * @IEEE80211_CONF_CHANGE_BEACON_INTERVAL: the beacon interval changed + * @IEEE80211_CONF_CHANGE_LISTEN_INTERVAL: the listen interval changed + * @IEEE80211_CONF_CHANGE_RADIOTAP: the radiotap flag changed + * @IEEE80211_CONF_CHANGE_PS: the PS flag changed + * @IEEE80211_CONF_CHANGE_POWER: the TX power changed + * @IEEE80211_CONF_CHANGE_CHANNEL: the channel changed + */ +enum ieee80211_conf_changed { + IEEE80211_CONF_CHANGE_RADIO_ENABLED = BIT(0), + IEEE80211_CONF_CHANGE_BEACON_INTERVAL = BIT(1), + IEEE80211_CONF_CHANGE_LISTEN_INTERVAL = BIT(2), + IEEE80211_CONF_CHANGE_RADIOTAP = BIT(3), + IEEE80211_CONF_CHANGE_PS = BIT(4), + IEEE80211_CONF_CHANGE_POWER = BIT(5), + IEEE80211_CONF_CHANGE_CHANNEL = BIT(6), +}; + /** * struct ieee80211_conf - configuration of the device * * This struct indicates how the driver shall configure the hardware. * * @radio_enabled: when zero, driver is required to switch off the radio. - * TODO make a flag * @beacon_int: beacon interval (TODO make interface config) * @listen_interval: listen interval in units of beacon interval * @flags: configuration flags defined above @@ -479,13 +499,13 @@ static inline int __deprecated __IEEE80211_CONF_SHORT_SLOT_TIME(void) * @channel: the channel to tune to */ struct ieee80211_conf { - int radio_enabled; - int beacon_int; - u16 listen_interval; u32 flags; int power_level; + u16 listen_interval; + bool radio_enabled; + struct ieee80211_channel *channel; struct ieee80211_sta_ht_cap ht_cap; @@ -1214,7 +1234,7 @@ struct ieee80211_ops { struct ieee80211_if_init_conf *conf); void (*remove_interface)(struct ieee80211_hw *hw, struct ieee80211_if_init_conf *conf); - int (*config)(struct ieee80211_hw *hw, struct ieee80211_conf *conf); + int (*config)(struct ieee80211_hw *hw, u32 changed); int (*config_interface)(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_if_conf *conf); diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index a5dea617aab..8ea30902d5d 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -394,7 +394,8 @@ static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata, */ if (params->interval) { sdata->local->hw.conf.beacon_int = params->interval; - ieee80211_hw_config(sdata->local); + ieee80211_hw_config(sdata->local, + IEEE80211_CONF_CHANGE_BEACON_INTERVAL); /* * We updated some parameter so if below bails out * it's not an error. diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 88015838a63..1deb787ff8d 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -875,7 +875,7 @@ static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr) } -int ieee80211_hw_config(struct ieee80211_local *local); +int ieee80211_hw_config(struct ieee80211_local *local, u32 changed); int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed); void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx); void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 8336fee68d3..df28c5f7c9c 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -65,7 +65,7 @@ static int ieee80211_open(struct net_device *dev) struct ieee80211_if_init_conf conf; u32 changed = 0; int res; - bool need_hw_reconfig = 0; + u32 hw_reconf_flags = 0; u8 null_addr[ETH_ALEN] = {0}; /* fail early if user set an invalid address */ @@ -152,7 +152,8 @@ static int ieee80211_open(struct net_device *dev) res = local->ops->start(local_to_hw(local)); if (res) goto err_del_bss; - need_hw_reconfig = 1; + /* we're brought up, everything changes */ + hw_reconf_flags = ~0; ieee80211_led_radio(local, local->hw.conf.radio_enabled); } @@ -198,8 +199,10 @@ static int ieee80211_open(struct net_device *dev) /* must be before the call to ieee80211_configure_filter */ local->monitors++; - if (local->monitors == 1) + if (local->monitors == 1) { local->hw.conf.flags |= IEEE80211_CONF_RADIOTAP; + hw_reconf_flags |= IEEE80211_CONF_CHANGE_RADIOTAP; + } if (sdata->u.mntr_flags & MONITOR_FLAG_FCSFAIL) local->fif_fcsfail++; @@ -279,8 +282,8 @@ static int ieee80211_open(struct net_device *dev) atomic_inc(&local->iff_promiscs); local->open_count++; - if (need_hw_reconfig) { - ieee80211_hw_config(local); + if (hw_reconf_flags) { + ieee80211_hw_config(local, hw_reconf_flags); /* * set default queue parameters so drivers don't * need to initialise the hardware if the hardware @@ -322,6 +325,7 @@ static int ieee80211_stop(struct net_device *dev) struct ieee80211_local *local = sdata->local; struct ieee80211_if_init_conf conf; struct sta_info *sta; + u32 hw_reconf_flags = 0; /* * Stop TX on this interface first. @@ -405,8 +409,10 @@ static int ieee80211_stop(struct net_device *dev) } local->monitors--; - if (local->monitors == 0) + if (local->monitors == 0) { local->hw.conf.flags &= ~IEEE80211_CONF_RADIOTAP; + hw_reconf_flags |= IEEE80211_CONF_CHANGE_RADIOTAP; + } if (sdata->u.mntr_flags & MONITOR_FLAG_FCSFAIL) local->fif_fcsfail--; @@ -504,8 +510,15 @@ static int ieee80211_stop(struct net_device *dev) tasklet_disable(&local->tx_pending_tasklet); tasklet_disable(&local->tasklet); + + /* no reconfiguring after stop! */ + hw_reconf_flags = 0; } + /* do after stop to avoid reconfiguring when we stop anyway */ + if (hw_reconf_flags) + ieee80211_hw_config(local, hw_reconf_flags); + return 0; } diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 07f812755e5..c936017f6d4 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -197,31 +197,34 @@ int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed) &sdata->vif, &conf); } -int ieee80211_hw_config(struct ieee80211_local *local) +int ieee80211_hw_config(struct ieee80211_local *local, u32 changed) { struct ieee80211_channel *chan; int ret = 0; + int power; if (local->sw_scanning) chan = local->scan_channel; else chan = local->oper_channel; - local->hw.conf.channel = chan; + if (chan != local->hw.conf.channel) { + local->hw.conf.channel = chan; + changed |= IEEE80211_CONF_CHANGE_CHANNEL; + } + if (!local->hw.conf.power_level) - local->hw.conf.power_level = chan->max_power; + power = chan->max_power; else - local->hw.conf.power_level = min(chan->max_power, - local->hw.conf.power_level); - -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - printk(KERN_DEBUG "%s: HW CONFIG: freq=%d\n", - wiphy_name(local->hw.wiphy), chan->center_freq); -#endif + power = min(chan->max_power, local->hw.conf.power_level); + if (local->hw.conf.power_level != power) { + changed |= IEEE80211_CONF_CHANGE_POWER; + local->hw.conf.power_level = power; + } - if (local->open_count) { - ret = local->ops->config(local_to_hw(local), &local->hw.conf); + if (changed && local->open_count) { + ret = local->ops->config(local_to_hw(local), changed); /* * HW reconfiguration should never fail, the driver has told * us what it can support so it should live up to that promise. @@ -672,7 +675,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD; local->short_retry_limit = 7; local->long_retry_limit = 4; - local->hw.conf.radio_enabled = 1; + local->hw.conf.radio_enabled = true; INIT_LIST_HEAD(&local->interfaces); diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index 0989b1c062e..7372d7abb8c 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -448,12 +448,17 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw) if (local->hw_scanning) { local->hw_scanning = false; - ieee80211_hw_config(local); + /* + * Somebody might have requested channel change during scan + * that we won't have acted upon, try now. ieee80211_hw_config + * will set the flag based on actual changes. + */ + ieee80211_hw_config(local, 0); goto done; } local->sw_scanning = false; - ieee80211_hw_config(local); + ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL); netif_tx_lock_bh(local->mdev); netif_addr_lock(local->mdev); @@ -540,7 +545,8 @@ void ieee80211_scan_work(struct work_struct *work) if (!skip) { local->scan_channel = chan; - if (ieee80211_hw_config(local)) + if (ieee80211_hw_config(local, + IEEE80211_CONF_CHANGE_CHANNEL)) skip = 1; } diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 9941a60a232..3288c3de67c 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -645,7 +645,8 @@ int ieee80211_set_freq(struct ieee80211_sub_if_data *sdata, int freqMHz) if (local->sw_scanning || local->hw_scanning) ret = 0; else - ret = ieee80211_hw_config(local); + ret = ieee80211_hw_config( + local, IEEE80211_CONF_CHANGE_CHANNEL); rate_control_clear(local); } diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c index a3af1514124..94c4b35eeb1 100644 --- a/net/mac80211/wext.c +++ b/net/mac80211/wext.c @@ -656,7 +656,7 @@ static int ieee80211_ioctl_siwtxpower(struct net_device *dev, union iwreq_data *data, char *extra) { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - bool need_reconfig = 0; + u32 reconf_flags = 0; int new_power_level; if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM) @@ -680,17 +680,17 @@ static int ieee80211_ioctl_siwtxpower(struct net_device *dev, if (local->hw.conf.power_level != new_power_level) { local->hw.conf.power_level = new_power_level; - need_reconfig = 1; + reconf_flags |= IEEE80211_CONF_CHANGE_POWER; } if (local->hw.conf.radio_enabled != !(data->txpower.disabled)) { local->hw.conf.radio_enabled = !(data->txpower.disabled); - need_reconfig = 1; + reconf_flags |= IEEE80211_CONF_CHANGE_RADIO_ENABLED; ieee80211_led_radio(local, local->hw.conf.radio_enabled); } - if (need_reconfig) - ieee80211_hw_config(local); + if (reconf_flags) + ieee80211_hw_config(local, reconf_flags); return 0; } @@ -976,7 +976,7 @@ static int ieee80211_ioctl_siwpower(struct net_device *dev, if (wrq->disabled) { conf->flags &= ~IEEE80211_CONF_PS; - return ieee80211_hw_config(local); + return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); } switch (wrq->flags & IW_POWER_MODE) { @@ -989,7 +989,7 @@ static int ieee80211_ioctl_siwpower(struct net_device *dev, return -EINVAL; } - return ieee80211_hw_config(local); + return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); } static int ieee80211_ioctl_giwpower(struct net_device *dev, -- cgit v1.2.3-70-g09d2 From 9124b07740c51cbc6e358dd0c4abc6ee8ded084d Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Tue, 14 Oct 2008 19:17:54 +0200 Subject: mac80211: make retry limits part of hw config Instead of having a separate callback, use the HW config callback with a new flag to change retry limits. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- drivers/net/wireless/ath9k/main.c | 1 - drivers/net/wireless/b43/main.c | 60 +++++++++++++-------------------- drivers/net/wireless/b43legacy/main.c | 59 ++++++++++++-------------------- drivers/net/wireless/rt2x00/rt2400pci.c | 2 +- drivers/net/wireless/rt2x00/rt2500pci.c | 2 +- drivers/net/wireless/rt2x00/rt2x00.h | 3 ++ drivers/net/wireless/rt2x00/rt2x00mac.c | 9 +++++ drivers/net/wireless/rt2x00/rt61pci.c | 2 +- drivers/net/wireless/rt2x00/rt73usb.c | 2 +- include/net/mac80211.h | 14 +++++--- net/mac80211/debugfs.c | 4 +-- net/mac80211/ieee80211_i.h | 2 -- net/mac80211/main.c | 4 +-- net/mac80211/tx.c | 4 +-- net/mac80211/wext.c | 28 +++++++-------- 15 files changed, 89 insertions(+), 107 deletions(-) (limited to 'net/mac80211/wext.c') diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c index f49910799ed..41cd114c438 100644 --- a/drivers/net/wireless/ath9k/main.c +++ b/drivers/net/wireless/ath9k/main.c @@ -1659,7 +1659,6 @@ static struct ieee80211_ops ath9k_ops = { .get_tkip_seq = NULL, .set_rts_threshold = NULL, .set_frag_threshold = NULL, - .set_retry_limit = NULL, .get_tsf = ath9k_get_tsf, .reset_tsf = ath9k_reset_tsf, .tx_last_beacon = NULL, diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index 2e81af1022e..9aeeb6553a9 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -3320,6 +3320,22 @@ init_failure: return err; } +/* Write the short and long frame retry limit values. */ +static void b43_set_retry_limits(struct b43_wldev *dev, + unsigned int short_retry, + unsigned int long_retry) +{ + /* The retry limit is a 4-bit counter. Enforce this to avoid overflowing + * the chip-internal counter. */ + short_retry = min(short_retry, (unsigned int)0xF); + long_retry = min(long_retry, (unsigned int)0xF); + + b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_SRLIMIT, + short_retry); + b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_LRLIMIT, + long_retry); +} + static int b43_op_config(struct ieee80211_hw *hw, u32 changed) { struct b43_wl *wl = hw_to_b43_wl(hw); @@ -3340,6 +3356,13 @@ static int b43_op_config(struct ieee80211_hw *hw, u32 changed) dev = wl->current_dev; phy = &dev->phy; + if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) + b43_set_retry_limits(dev, conf->short_frame_max_tx_count, + conf->long_frame_max_tx_count); + changed &= ~IEEE80211_CONF_CHANGE_RETRY_LIMITS; + if (!changed) + goto out_unlock_mutex; + /* Disable IRQs while reconfiguring the device. * This makes it possible to drop the spinlock throughout * the reconfiguration process. */ @@ -3859,22 +3882,6 @@ static void b43_imcfglo_timeouts_workaround(struct b43_wldev *dev) #endif /* CONFIG_SSB_DRIVER_PCICORE */ } -/* Write the short and long frame retry limit values. */ -static void b43_set_retry_limits(struct b43_wldev *dev, - unsigned int short_retry, - unsigned int long_retry) -{ - /* The retry limit is a 4-bit counter. Enforce this to avoid overflowing - * the chip-internal counter. */ - short_retry = min(short_retry, (unsigned int)0xF); - long_retry = min(long_retry, (unsigned int)0xF); - - b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_SRLIMIT, - short_retry); - b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_LRLIMIT, - long_retry); -} - static void b43_set_synth_pu_delay(struct b43_wldev *dev, bool idle) { u16 pu_delay; @@ -4195,26 +4202,6 @@ static void b43_op_stop(struct ieee80211_hw *hw) cancel_work_sync(&(wl->txpower_adjust_work)); } -static int b43_op_set_retry_limit(struct ieee80211_hw *hw, - u32 short_retry_limit, u32 long_retry_limit) -{ - struct b43_wl *wl = hw_to_b43_wl(hw); - struct b43_wldev *dev; - int err = 0; - - mutex_lock(&wl->mutex); - dev = wl->current_dev; - if (unlikely(!dev || (b43_status(dev) < B43_STAT_INITIALIZED))) { - err = -ENODEV; - goto out_unlock; - } - b43_set_retry_limits(dev, short_retry_limit, long_retry_limit); -out_unlock: - mutex_unlock(&wl->mutex); - - return err; -} - static int b43_op_beacon_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, bool set) { @@ -4251,7 +4238,6 @@ static const struct ieee80211_ops b43_hw_ops = { .get_tx_stats = b43_op_get_tx_stats, .start = b43_op_start, .stop = b43_op_stop, - .set_retry_limit = b43_op_set_retry_limit, .set_tim = b43_op_beacon_set_tim, .sta_notify = b43_op_sta_notify, }; diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c index 793cc396562..78e46365f69 100644 --- a/drivers/net/wireless/b43legacy/main.c +++ b/drivers/net/wireless/b43legacy/main.c @@ -2556,6 +2556,20 @@ init_failure: return err; } +/* Write the short and long frame retry limit values. */ +static void b43legacy_set_retry_limits(struct b43legacy_wldev *dev, + unsigned int short_retry, + unsigned int long_retry) +{ + /* The retry limit is a 4-bit counter. Enforce this to avoid overflowing + * the chip-internal counter. */ + short_retry = min(short_retry, (unsigned int)0xF); + long_retry = min(long_retry, (unsigned int)0xF); + + b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, 0x0006, short_retry); + b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, 0x0007, long_retry); +} + static int b43legacy_op_dev_config(struct ieee80211_hw *hw, u32 changed) { @@ -2577,6 +2591,14 @@ static int b43legacy_op_dev_config(struct ieee80211_hw *hw, dev = wl->current_dev; phy = &dev->phy; + if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) + b43legacy_set_retry_limits(dev, + conf->short_frame_max_tx_count, + conf->long_frame_max_tx_count); + changed &= ~IEEE80211_CONF_CHANGE_RETRY_LIMITS; + if (!changed) + goto out_unlock_mutex; + /* Switch the PHY mode (if necessary). */ switch (conf->channel->band) { case IEEE80211_BAND_2GHZ: @@ -2989,20 +3011,6 @@ static void b43legacy_imcfglo_timeouts_workaround(struct b43legacy_wldev *dev) #endif /* CONFIG_SSB_DRIVER_PCICORE */ } -/* Write the short and long frame retry limit values. */ -static void b43legacy_set_retry_limits(struct b43legacy_wldev *dev, - unsigned int short_retry, - unsigned int long_retry) -{ - /* The retry limit is a 4-bit counter. Enforce this to avoid overflowing - * the chip-internal counter. */ - short_retry = min(short_retry, (unsigned int)0xF); - long_retry = min(long_retry, (unsigned int)0xF); - - b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, 0x0006, short_retry); - b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, 0x0007, long_retry); -} - static void b43legacy_set_synth_pu_delay(struct b43legacy_wldev *dev, bool idle) { u16 pu_delay = 1050; @@ -3367,28 +3375,6 @@ static void b43legacy_op_stop(struct ieee80211_hw *hw) mutex_unlock(&wl->mutex); } -static int b43legacy_op_set_retry_limit(struct ieee80211_hw *hw, - u32 short_retry_limit, - u32 long_retry_limit) -{ - struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw); - struct b43legacy_wldev *dev; - int err = 0; - - mutex_lock(&wl->mutex); - dev = wl->current_dev; - if (unlikely(!dev || - (b43legacy_status(dev) < B43legacy_STAT_INITIALIZED))) { - err = -ENODEV; - goto out_unlock; - } - b43legacy_set_retry_limits(dev, short_retry_limit, long_retry_limit); -out_unlock: - mutex_unlock(&wl->mutex); - - return err; -} - static int b43legacy_op_beacon_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, bool set) { @@ -3414,7 +3400,6 @@ static const struct ieee80211_ops b43legacy_hw_ops = { .get_tx_stats = b43legacy_op_get_tx_stats, .start = b43legacy_op_start, .stop = b43legacy_op_stop, - .set_retry_limit = b43legacy_op_set_retry_limit, .set_tim = b43legacy_op_beacon_set_tim, }; diff --git a/drivers/net/wireless/rt2x00/rt2400pci.c b/drivers/net/wireless/rt2x00/rt2400pci.c index 96eaf5f4dc6..1adca7a1b9d 100644 --- a/drivers/net/wireless/rt2x00/rt2400pci.c +++ b/drivers/net/wireless/rt2x00/rt2400pci.c @@ -1574,7 +1574,6 @@ static const struct ieee80211_ops rt2400pci_mac80211_ops = { .config_interface = rt2x00mac_config_interface, .configure_filter = rt2x00mac_configure_filter, .get_stats = rt2x00mac_get_stats, - .set_retry_limit = rt2400pci_set_retry_limit, .bss_info_changed = rt2x00mac_bss_info_changed, .conf_tx = rt2400pci_conf_tx, .get_tx_stats = rt2x00mac_get_tx_stats, @@ -1603,6 +1602,7 @@ static const struct rt2x00lib_ops rt2400pci_rt2x00_ops = { .config_intf = rt2400pci_config_intf, .config_erp = rt2400pci_config_erp, .config = rt2400pci_config, + .set_retry_limit = rt2400pci_set_retry_limit, }; static const struct data_queue_desc rt2400pci_queue_rx = { diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c index 8b772ab613e..85b0387f46e 100644 --- a/drivers/net/wireless/rt2x00/rt2500pci.c +++ b/drivers/net/wireless/rt2x00/rt2500pci.c @@ -1874,7 +1874,6 @@ static const struct ieee80211_ops rt2500pci_mac80211_ops = { .config_interface = rt2x00mac_config_interface, .configure_filter = rt2x00mac_configure_filter, .get_stats = rt2x00mac_get_stats, - .set_retry_limit = rt2500pci_set_retry_limit, .bss_info_changed = rt2x00mac_bss_info_changed, .conf_tx = rt2x00mac_conf_tx, .get_tx_stats = rt2x00mac_get_tx_stats, @@ -1903,6 +1902,7 @@ static const struct rt2x00lib_ops rt2500pci_rt2x00_ops = { .config_intf = rt2500pci_config_intf, .config_erp = rt2500pci_config_erp, .config = rt2500pci_config, + .set_retry_limit = rt2500pci_set_retry_limit, }; static const struct data_queue_desc rt2500pci_queue_rx = { diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h index 8ec8f7e9ec6..0887e895d5c 100644 --- a/drivers/net/wireless/rt2x00/rt2x00.h +++ b/drivers/net/wireless/rt2x00/rt2x00.h @@ -599,6 +599,9 @@ struct rt2x00lib_ops { #define CONFIG_UPDATE_SLOT_TIME ( 1 << 5 ) #define CONFIG_UPDATE_BEACON_INT ( 1 << 6 ) #define CONFIG_UPDATE_ALL 0xffff + + int (*set_retry_limit) (struct ieee80211_hw *hw, + u32 short_limit, u32 long_limit); }; /* diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c index da7b49a364f..931183369f0 100644 --- a/drivers/net/wireless/rt2x00/rt2x00mac.c +++ b/drivers/net/wireless/rt2x00/rt2x00mac.c @@ -349,6 +349,15 @@ int rt2x00mac_config(struct ieee80211_hw *hw, u32 changed) if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags)) return 0; + if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) { + rt2x00dev->ops->lib->set_retry_limit(hw, + conf->short_frame_max_tx_count, + conf->long_frame_max_tx_count); + } + changed &= ~IEEE80211_CONF_CHANGE_RETRY_LIMITS; + if (!changed) + return 0; + /* * Only change device state when the radio is enabled. It does not * matter what parameters we have configured when the radio is disabled diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c index 45f69f83552..08eb896ae36 100644 --- a/drivers/net/wireless/rt2x00/rt61pci.c +++ b/drivers/net/wireless/rt2x00/rt61pci.c @@ -2724,7 +2724,6 @@ static const struct ieee80211_ops rt61pci_mac80211_ops = { .configure_filter = rt2x00mac_configure_filter, .set_key = rt2x00mac_set_key, .get_stats = rt2x00mac_get_stats, - .set_retry_limit = rt61pci_set_retry_limit, .bss_info_changed = rt2x00mac_bss_info_changed, .conf_tx = rt61pci_conf_tx, .get_tx_stats = rt2x00mac_get_tx_stats, @@ -2757,6 +2756,7 @@ static const struct rt2x00lib_ops rt61pci_rt2x00_ops = { .config_intf = rt61pci_config_intf, .config_erp = rt61pci_config_erp, .config = rt61pci_config, + .set_retry_limit = rt61pci_set_retry_limit, }; static const struct data_queue_desc rt61pci_queue_rx = { diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c index 336fecb04c4..7f89782a34e 100644 --- a/drivers/net/wireless/rt2x00/rt73usb.c +++ b/drivers/net/wireless/rt2x00/rt73usb.c @@ -2315,7 +2315,6 @@ static const struct ieee80211_ops rt73usb_mac80211_ops = { .configure_filter = rt2x00mac_configure_filter, .set_key = rt2x00mac_set_key, .get_stats = rt2x00mac_get_stats, - .set_retry_limit = rt73usb_set_retry_limit, .bss_info_changed = rt2x00mac_bss_info_changed, .conf_tx = rt73usb_conf_tx, .get_tx_stats = rt2x00mac_get_tx_stats, @@ -2347,6 +2346,7 @@ static const struct rt2x00lib_ops rt73usb_rt2x00_ops = { .config_intf = rt73usb_config_intf, .config_erp = rt73usb_config_erp, .config = rt73usb_config, + .set_retry_limit = rt73usb_set_retry_limit, }; static const struct data_queue_desc rt73usb_queue_rx = { diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 34e8569b59b..fd52300b96d 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -473,6 +473,7 @@ static inline int __deprecated __IEEE80211_CONF_SHORT_SLOT_TIME(void) * @IEEE80211_CONF_CHANGE_PS: the PS flag changed * @IEEE80211_CONF_CHANGE_POWER: the TX power changed * @IEEE80211_CONF_CHANGE_CHANNEL: the channel changed + * @IEEE80211_CONF_CHANGE_RETRY_LIMITS: retry limits changed */ enum ieee80211_conf_changed { IEEE80211_CONF_CHANGE_RADIO_ENABLED = BIT(0), @@ -482,6 +483,7 @@ enum ieee80211_conf_changed { IEEE80211_CONF_CHANGE_PS = BIT(4), IEEE80211_CONF_CHANGE_POWER = BIT(5), IEEE80211_CONF_CHANGE_CHANNEL = BIT(6), + IEEE80211_CONF_CHANGE_RETRY_LIMITS = BIT(7), }; /** @@ -497,6 +499,12 @@ enum ieee80211_conf_changed { * @ht_cap: describes current self configuration of 802.11n HT capabilities * @ht_bss_conf: describes current BSS configuration of 802.11n HT parameters * @channel: the channel to tune to + * @long_frame_max_tx_count: Maximum number of transmissions for a "long" frame + * (a frame not RTS protected), called "dot11LongRetryLimit" in 802.11, + * but actually means the number of transmissions not the number of retries + * @short_frame_max_tx_count: Maximum number of transmissions for a "short" + * frame, called "dot11ShortRetryLimit" in 802.11, but actually means the + * number of transmissions not the number of retries */ struct ieee80211_conf { int beacon_int; @@ -506,6 +514,8 @@ struct ieee80211_conf { u16 listen_interval; bool radio_enabled; + u8 long_frame_max_tx_count, short_frame_max_tx_count; + struct ieee80211_channel *channel; struct ieee80211_sta_ht_cap ht_cap; @@ -1190,8 +1200,6 @@ enum ieee80211_ampdu_mlme_action { * the device does fragmentation by itself; if this method is assigned then * the stack will not do fragmentation. * - * @set_retry_limit: Configuration of retry limits (if device needs it) - * * @sta_notify: Notifies low level driver about addition or removal * of assocaited station or AP. * @@ -1261,8 +1269,6 @@ struct ieee80211_ops { u32 *iv32, u16 *iv16); int (*set_rts_threshold)(struct ieee80211_hw *hw, u32 value); int (*set_frag_threshold)(struct ieee80211_hw *hw, u32 value); - int (*set_retry_limit)(struct ieee80211_hw *hw, - u32 short_retry, u32 long_retr); 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, diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c index 767dbca50ad..2697a2fe608 100644 --- a/net/mac80211/debugfs.c +++ b/net/mac80211/debugfs.c @@ -52,9 +52,9 @@ DEBUGFS_READONLY_FILE(rts_threshold, 20, "%d", DEBUGFS_READONLY_FILE(fragmentation_threshold, 20, "%d", local->fragmentation_threshold); DEBUGFS_READONLY_FILE(short_retry_limit, 20, "%d", - local->short_retry_limit); + local->hw.conf.short_frame_max_tx_count); DEBUGFS_READONLY_FILE(long_retry_limit, 20, "%d", - local->long_retry_limit); + local->hw.conf.long_frame_max_tx_count); DEBUGFS_READONLY_FILE(total_ps_buffered, 20, "%d", local->total_ps_buffered); DEBUGFS_READONLY_FILE(wep_iv, 20, "%#06x", diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 819844726dd..f1ef522bfe0 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -635,8 +635,6 @@ struct ieee80211_local { int rts_threshold; int fragmentation_threshold; - int short_retry_limit; /* dot11ShortRetryLimit */ - int long_retry_limit; /* dot11LongRetryLimit */ struct crypto_blkcipher *wep_tx_tfm; struct crypto_blkcipher *wep_rx_tfm; diff --git a/net/mac80211/main.c b/net/mac80211/main.c index c936017f6d4..59be9e78269 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -673,8 +673,8 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD; - local->short_retry_limit = 7; - local->long_retry_limit = 4; + local->hw.conf.long_frame_max_tx_count = 4; + local->hw.conf.short_frame_max_tx_count = 7; local->hw.conf.radio_enabled = true; INIT_LIST_HEAD(&local->interfaces); diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 8bcabefa86e..dd440a07634 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -505,10 +505,10 @@ ieee80211_tx_h_misc(struct ieee80211_tx_data *tx) info->flags |= IEEE80211_TX_CTL_LONG_RETRY_LIMIT; info->control.retry_limit = - tx->local->long_retry_limit; + tx->local->hw.conf.long_frame_max_tx_count - 1; } else { info->control.retry_limit = - tx->local->short_retry_limit; + tx->local->hw.conf.short_frame_max_tx_count - 1; } } else { info->control.retry_limit = 1; diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c index 94c4b35eeb1..f7e442f80a1 100644 --- a/net/mac80211/wext.c +++ b/net/mac80211/wext.c @@ -802,21 +802,16 @@ static int ieee80211_ioctl_siwretry(struct net_device *dev, (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT) return -EINVAL; - if (retry->flags & IW_RETRY_MAX) - local->long_retry_limit = retry->value; - else if (retry->flags & IW_RETRY_MIN) - local->short_retry_limit = retry->value; - else { - local->long_retry_limit = retry->value; - local->short_retry_limit = retry->value; + if (retry->flags & IW_RETRY_MAX) { + local->hw.conf.long_frame_max_tx_count = retry->value; + } else if (retry->flags & IW_RETRY_MIN) { + local->hw.conf.short_frame_max_tx_count = retry->value; + } else { + local->hw.conf.long_frame_max_tx_count = retry->value; + local->hw.conf.short_frame_max_tx_count = retry->value; } - if (local->ops->set_retry_limit) { - return local->ops->set_retry_limit( - local_to_hw(local), - local->short_retry_limit, - local->long_retry_limit); - } + ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); return 0; } @@ -833,14 +828,15 @@ static int ieee80211_ioctl_giwretry(struct net_device *dev, /* first return min value, iwconfig will ask max value * later if needed */ retry->flags |= IW_RETRY_LIMIT; - retry->value = local->short_retry_limit; - if (local->long_retry_limit != local->short_retry_limit) + retry->value = local->hw.conf.short_frame_max_tx_count; + if (local->hw.conf.long_frame_max_tx_count != + local->hw.conf.short_frame_max_tx_count) retry->flags |= IW_RETRY_MIN; return 0; } if (retry->flags & IW_RETRY_MAX) { retry->flags = IW_RETRY_LIMIT | IW_RETRY_MAX; - retry->value = local->long_retry_limit; + retry->value = local->hw.conf.long_frame_max_tx_count; } return 0; -- cgit v1.2.3-70-g09d2 From e6a9854b05c1a6af1308fe2b8c68f35abf28a3ee Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Tue, 21 Oct 2008 12:40:02 +0200 Subject: mac80211/drivers: rewrite the rate control API So after the previous changes we were still unhappy with how convoluted the API is and decided to make things simpler for everybody. This completely changes the rate control API, now taking into account 802.11n with MCS rates and more control, most drivers don't support that though. Signed-off-by: Felix Fietkau Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- drivers/net/wireless/adm8211.c | 21 +- drivers/net/wireless/ath5k/base.c | 34 ++- drivers/net/wireless/ath9k/main.c | 18 +- drivers/net/wireless/ath9k/rc.c | 40 +-- drivers/net/wireless/ath9k/xmit.c | 28 ++- drivers/net/wireless/b43/dma.c | 4 +- drivers/net/wireless/b43/main.c | 2 +- drivers/net/wireless/b43/pio.c | 3 +- drivers/net/wireless/b43/xmit.c | 60 ++++- drivers/net/wireless/b43/xmit.h | 5 +- drivers/net/wireless/b43legacy/dma.c | 46 ++-- drivers/net/wireless/b43legacy/main.c | 2 +- drivers/net/wireless/b43legacy/pio.c | 31 ++- drivers/net/wireless/b43legacy/xmit.c | 26 +- drivers/net/wireless/b43legacy/xmit.h | 2 +- drivers/net/wireless/iwlwifi/iwl-3945-rs.c | 57 ++--- drivers/net/wireless/iwlwifi/iwl-3945.c | 65 ++++- drivers/net/wireless/iwlwifi/iwl-3945.h | 2 + drivers/net/wireless/iwlwifi/iwl-4965.c | 8 +- drivers/net/wireless/iwlwifi/iwl-5000.c | 8 +- drivers/net/wireless/iwlwifi/iwl-agn-rs.c | 37 ++- drivers/net/wireless/iwlwifi/iwl-core.c | 19 +- drivers/net/wireless/iwlwifi/iwl3945-base.c | 5 +- drivers/net/wireless/libertas_tf/main.c | 4 +- drivers/net/wireless/mac80211_hwsim.c | 12 +- drivers/net/wireless/p54/p54common.c | 26 +- drivers/net/wireless/rt2x00/rt2x00dev.c | 14 +- drivers/net/wireless/rt2x00/rt2x00mac.c | 14 +- drivers/net/wireless/rt2x00/rt2x00queue.c | 22 +- drivers/net/wireless/rt2x00/rt2x00queue.h | 9 +- drivers/net/wireless/rtl8180_dev.c | 28 +-- drivers/net/wireless/rtl8187_dev.c | 18 +- drivers/net/wireless/zd1211rw/zd_mac.c | 32 +-- drivers/net/wireless/zd1211rw/zd_usb.c | 2 +- include/net/mac80211.h | 254 +++++++++++-------- net/mac80211/ieee80211_i.h | 8 - net/mac80211/main.c | 54 +++- net/mac80211/mesh_hwmp.c | 6 +- net/mac80211/rate.c | 52 ++-- net/mac80211/rate.h | 5 +- net/mac80211/rc80211_minstrel.c | 72 +++--- net/mac80211/rc80211_pid.h | 1 + net/mac80211/rc80211_pid_algo.c | 27 +- net/mac80211/rc80211_pid_debugfs.c | 5 +- net/mac80211/sta_info.h | 4 +- net/mac80211/tx.c | 378 +++++++++++++--------------- net/mac80211/wext.c | 4 +- 47 files changed, 889 insertions(+), 685 deletions(-) (limited to 'net/mac80211/wext.c') diff --git a/drivers/net/wireless/adm8211.c b/drivers/net/wireless/adm8211.c index 9a1e0c514c0..b96ebfe4ef3 100644 --- a/drivers/net/wireless/adm8211.c +++ b/drivers/net/wireless/adm8211.c @@ -341,15 +341,14 @@ static void adm8211_interrupt_tci(struct ieee80211_hw *dev) pci_unmap_single(priv->pdev, info->mapping, info->skb->len, PCI_DMA_TODEVICE); - memset(&txi->status, 0, sizeof(txi->status)); + ieee80211_tx_info_clear_status(txi); + skb_pull(skb, sizeof(struct adm8211_tx_hdr)); memcpy(skb_push(skb, info->hdrlen), skb->cb, info->hdrlen); - if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK)) { - if (status & TDES0_STATUS_ES) - txi->status.excessive_retries = 1; - else - txi->flags |= IEEE80211_TX_STAT_ACK; - } + if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && + !(status & TDES0_STATUS_ES)) + txi->flags |= IEEE80211_TX_STAT_ACK; + ieee80211_tx_status_irqsafe(dev, skb); info->skb = NULL; @@ -1691,8 +1690,10 @@ static int adm8211_tx(struct ieee80211_hw *dev, struct sk_buff *skb) struct ieee80211_hdr *hdr; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); struct ieee80211_rate *txrate = ieee80211_get_tx_rate(dev, info); + u8 rc_flags; - short_preamble = !!(txrate->flags & IEEE80211_TX_CTL_SHORT_PREAMBLE); + rc_flags = info->control.rates[0].flags; + short_preamble = !!(rc_flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE); plcp_signal = txrate->bitrate; hdr = (struct ieee80211_hdr *)skb->data; @@ -1724,10 +1725,10 @@ static int adm8211_tx(struct ieee80211_hw *dev, struct sk_buff *skb) if (short_preamble) txhdr->header_control |= cpu_to_le16(ADM8211_TXHDRCTL_SHORT_PREAMBLE); - if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) + if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) txhdr->header_control |= cpu_to_le16(ADM8211_TXHDRCTL_ENABLE_RTS); - txhdr->retry_limit = info->control.retry_limit; + txhdr->retry_limit = info->control.rates[0].count; adm8211_tx_raw(dev, skb, plcp_signal, hdrlen); diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c index 44401f6f578..3773d983ea6 100644 --- a/drivers/net/wireless/ath5k/base.c +++ b/drivers/net/wireless/ath5k/base.c @@ -541,8 +541,8 @@ ath5k_pci_probe(struct pci_dev *pdev, /* set up multi-rate retry capabilities */ if (sc->ah->ah_version == AR5K_AR5212) { - hw->max_altrates = 3; - hw->max_altrate_tries = 11; + hw->max_rates = 4; + hw->max_rate_tries = 11; } /* Finish private driver data initialization */ @@ -1181,7 +1181,7 @@ ath5k_txbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf) ieee80211_get_hdrlen_from_skb(skb), AR5K_PKT_TYPE_NORMAL, (sc->power_level * 2), ieee80211_get_tx_rate(sc->hw, info)->hw_value, - info->control.retry_limit, keyidx, 0, flags, 0, 0); + info->control.rates[0].count, keyidx, 0, flags, 0, 0); if (ret) goto err_unmap; @@ -1193,7 +1193,7 @@ ath5k_txbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf) break; mrr_rate[i] = rate->hw_value; - mrr_tries[i] = info->control.retries[i].limit; + mrr_tries[i] = info->control.rates[i + 1].count; } ah->ah_setup_mrr_tx_desc(ah, ds, @@ -1849,30 +1849,26 @@ ath5k_tx_processq(struct ath5k_softc *sc, struct ath5k_txq *txq) pci_unmap_single(sc->pdev, bf->skbaddr, skb->len, PCI_DMA_TODEVICE); - memset(&info->status, 0, sizeof(info->status)); - info->tx_rate_idx = ath5k_hw_to_driver_rix(sc, - ts.ts_rate[ts.ts_final_idx]); - info->status.retry_count = ts.ts_longretry; - + ieee80211_tx_info_clear_status(info); for (i = 0; i < 4; i++) { - struct ieee80211_tx_altrate *r = - &info->status.retries[i]; + struct ieee80211_tx_rate *r = + &info->status.rates[i]; if (ts.ts_rate[i]) { - r->rate_idx = ath5k_hw_to_driver_rix(sc, ts.ts_rate[i]); - r->limit = ts.ts_retry[i]; + r->idx = ath5k_hw_to_driver_rix(sc, ts.ts_rate[i]); + r->count = ts.ts_retry[i]; } else { - r->rate_idx = -1; - r->limit = 0; + r->idx = -1; + r->count = 0; } } - info->status.excessive_retries = 0; + /* count the successful attempt as well */ + info->status.rates[ts.ts_final_idx].count++; + if (unlikely(ts.ts_status)) { sc->ll_stats.dot11ACKFailureCount++; - if (ts.ts_status & AR5K_TXERR_XRETRY) - info->status.excessive_retries = 1; - else if (ts.ts_status & AR5K_TXERR_FILT) + if (ts.ts_status & AR5K_TXERR_FILT) info->flags |= IEEE80211_TX_STAT_TX_FILTERED; } else { info->flags |= IEEE80211_TX_STAT_ACK; diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c index 32acaf7ff62..a7656a3ea1b 100644 --- a/drivers/net/wireless/ath9k/main.c +++ b/drivers/net/wireless/ath9k/main.c @@ -457,12 +457,13 @@ void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb, DPRINTF(sc, ATH_DBG_XMIT, "%s: TX complete: skb: %p\n", __func__, skb); + ieee80211_tx_info_clear_status(tx_info); if (tx_info->flags & IEEE80211_TX_CTL_NO_ACK || tx_info->flags & IEEE80211_TX_STAT_TX_FILTERED) { - /* free driver's private data area of tx_info */ - if (tx_info->driver_data[0] != NULL) - kfree(tx_info->driver_data[0]); - tx_info->driver_data[0] = NULL; + /* free driver's private data area of tx_info, XXX: HACK! */ + if (tx_info->control.vif != NULL) + kfree(tx_info->control.vif); + tx_info->control.vif = NULL; } if (tx_status->flags & ATH_TX_BAR) { @@ -470,17 +471,12 @@ void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb, tx_status->flags &= ~ATH_TX_BAR; } - if (tx_status->flags & (ATH_TX_ERROR | ATH_TX_XRETRY)) { - if (!(tx_info->flags & IEEE80211_TX_CTL_NO_ACK)) { - /* Frame was not ACKed, but an ACK was expected */ - tx_info->status.excessive_retries = 1; - } - } else { + if (!(tx_status->flags & (ATH_TX_ERROR | ATH_TX_XRETRY))) { /* Frame was ACKed */ tx_info->flags |= IEEE80211_TX_STAT_ACK; } - tx_info->status.retry_count = tx_status->retries; + tx_info->status.rates[0].count = tx_status->retries + 1; ieee80211_tx_status(hw, skb); if (an) diff --git a/drivers/net/wireless/ath9k/rc.c b/drivers/net/wireless/ath9k/rc.c index 9b252603096..6afafeddeda 100644 --- a/drivers/net/wireless/ath9k/rc.c +++ b/drivers/net/wireless/ath9k/rc.c @@ -1864,24 +1864,21 @@ static void ath_tx_status(void *priv, struct ieee80211_supported_band *sband, hdr = (struct ieee80211_hdr *)skb->data; fc = hdr->frame_control; - tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0]; + /* XXX: UGLY HACK!! */ + tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif; spin_lock_bh(&sc->node_lock); an = ath_node_find(sc, hdr->addr1); spin_unlock_bh(&sc->node_lock); - if (!an || !priv_sta || !ieee80211_is_data(fc)) { - if (tx_info->driver_data[0] != NULL) { - kfree(tx_info->driver_data[0]); - tx_info->driver_data[0] = NULL; - } + if (tx_info_priv == NULL) return; - } - if (tx_info->driver_data[0] != NULL) { + + if (an && priv_sta && ieee80211_is_data(fc)) ath_rate_tx_complete(sc, an, priv_sta, tx_info_priv); - kfree(tx_info->driver_data[0]); - tx_info->driver_data[0] = NULL; - } + + kfree(tx_info_priv); + tx_info->control.vif = NULL; } static void ath_tx_aggr_resp(struct ath_softc *sc, @@ -1927,10 +1924,11 @@ static void ath_tx_aggr_resp(struct ath_softc *sc, } } -static void ath_get_rate(void *priv, struct ieee80211_supported_band *sband, - struct ieee80211_sta *sta, void *priv_sta, - struct sk_buff *skb, struct rate_selection *sel) +static void ath_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta, + struct ieee80211_tx_rate_control *txrc) { + struct ieee80211_supported_band *sband = txrc->sband; + struct sk_buff *skb = txrc->skb; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; struct ath_softc *sc = priv; struct ieee80211_hw *hw = sc->hw; @@ -1945,17 +1943,17 @@ static void ath_get_rate(void *priv, struct ieee80211_supported_band *sband, DPRINTF(sc, ATH_DBG_RATE, "%s\n", __func__); - /* allocate driver private area of tx_info */ - tx_info->driver_data[0] = kzalloc(sizeof(*tx_info_priv), GFP_ATOMIC); - ASSERT(tx_info->driver_data[0] != NULL); - tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0]; + /* allocate driver private area of tx_info, XXX: UGLY HACK! */ + tx_info->control.vif = kzalloc(sizeof(*tx_info_priv), GFP_ATOMIC); + tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif; + ASSERT(tx_info_priv != NULL); lowest_idx = rate_lowest_index(sband, sta); tx_info_priv->min_rate = (sband->bitrates[lowest_idx].bitrate * 2) / 10; /* lowest rate for management and multicast/broadcast frames */ if (!ieee80211_is_data(fc) || is_multicast_ether_addr(hdr->addr1) || !sta) { - sel->rate_idx = lowest_idx; + tx_info->control.rates[0].idx = lowest_idx; return; } @@ -1966,8 +1964,10 @@ static void ath_get_rate(void *priv, struct ieee80211_supported_band *sband, tx_info_priv->rcs, &is_probe, false); +#if 0 if (is_probe) sel->probe_idx = ath_rc_priv->tx_ratectrl.probe_rate; +#endif /* Ratecontrol sometimes returns invalid rate index */ if (tx_info_priv->rcs[0].rix != 0xff) @@ -1975,7 +1975,7 @@ static void ath_get_rate(void *priv, struct ieee80211_supported_band *sband, else tx_info_priv->rcs[0].rix = ath_rc_priv->prev_data_rix; - sel->rate_idx = tx_info_priv->rcs[0].rix; + tx_info->control.rates[0].idx = tx_info_priv->rcs[0].rix; /* Check if aggregation has to be enabled for this tid */ diff --git a/drivers/net/wireless/ath9k/xmit.c b/drivers/net/wireless/ath9k/xmit.c index ba818cc2fb5..9fa395418a6 100644 --- a/drivers/net/wireless/ath9k/xmit.c +++ b/drivers/net/wireless/ath9k/xmit.c @@ -168,7 +168,9 @@ static void fill_min_rates(struct sk_buff *skb, struct ath_tx_control *txctl) hdr = (struct ieee80211_hdr *)skb->data; fc = hdr->frame_control; - tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0]; + + /* XXX: HACK! */ + tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif; if (ieee80211_is_mgmt(fc) || ieee80211_is_ctl(fc)) { txctl->use_minrate = 1; @@ -288,13 +290,16 @@ static int ath_tx_prepare(struct ath_softc *sc, if (tx_info->flags & IEEE80211_TX_CTL_NO_ACK) txctl->flags |= ATH9K_TXDESC_NOACK; - if (tx_info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) + + if (tx_info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) txctl->flags |= ATH9K_TXDESC_RTSENA; /* * Setup for rate calculations. */ - tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0]; + + /* XXX: HACK! */ + tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif; rcs = tx_info_priv->rcs; if (ieee80211_is_data(fc) && !txctl->use_minrate) { @@ -855,7 +860,9 @@ static int ath_tx_send_normal(struct ath_softc *sc, skb = (struct sk_buff *)bf->bf_mpdu; tx_info = IEEE80211_SKB_CB(skb); - tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0]; + + /* XXX: HACK! */ + tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif; memcpy(bf->bf_rcs, tx_info_priv->rcs, 4 * sizeof(tx_info_priv->rcs[0])); /* update starting sequence number for subsequent ADDBA request */ @@ -1249,8 +1256,9 @@ static int ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq) } skb = bf->bf_mpdu; tx_info = IEEE80211_SKB_CB(skb); - tx_info_priv = (struct ath_tx_info_priv *) - tx_info->driver_data[0]; + + /* XXX: HACK! */ + tx_info_priv = (struct ath_tx_info_priv *) tx_info->control.vif; if (ds->ds_txstat.ts_status & ATH9K_TXERR_FILT) tx_info->flags |= IEEE80211_TX_STAT_TX_FILTERED; if ((ds->ds_txstat.ts_status & ATH9K_TXERR_FILT) == 0 && @@ -1431,7 +1439,8 @@ static int ath_tx_send_ampdu(struct ath_softc *sc, skb = (struct sk_buff *)bf->bf_mpdu; tx_info = IEEE80211_SKB_CB(skb); - tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0]; + /* XXX: HACK! */ + tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif; memcpy(bf->bf_rcs, tx_info_priv->rcs, 4 * sizeof(tx_info_priv->rcs[0])); /* Add sub-frame to BAW */ @@ -1466,7 +1475,7 @@ static u32 ath_lookup_rate(struct ath_softc *sc, skb = (struct sk_buff *)bf->bf_mpdu; tx_info = IEEE80211_SKB_CB(skb); tx_info_priv = (struct ath_tx_info_priv *) - tx_info->driver_data[0]; + tx_info->control.vif; /* XXX: HACK! */ memcpy(bf->bf_rcs, tx_info_priv->rcs, 4 * sizeof(tx_info_priv->rcs[0])); @@ -1927,7 +1936,8 @@ static int ath_tx_start_dma(struct ath_softc *sc, bf->bf_flags = txctl->flags; bf->bf_keytype = txctl->keytype; - tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0]; + /* XXX: HACK! */ + tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif; rcs = tx_info_priv->rcs; bf->bf_rcs[0] = rcs[0]; bf->bf_rcs[1] = rcs[1]; diff --git a/drivers/net/wireless/b43/dma.c b/drivers/net/wireless/b43/dma.c index 098f886976f..6d65a02b705 100644 --- a/drivers/net/wireless/b43/dma.c +++ b/drivers/net/wireless/b43/dma.c @@ -1387,13 +1387,11 @@ void b43_dma_handle_txstatus(struct b43_wldev *dev, info = IEEE80211_SKB_CB(meta->skb); - memset(&info->status, 0, sizeof(info->status)); - /* * Call back to inform the ieee80211 subsystem about * the status of the transmission. */ - frame_succeed = b43_fill_txstatus_report(info, status); + frame_succeed = b43_fill_txstatus_report(dev, info, status); #ifdef CONFIG_B43_DEBUG if (frame_succeed) ring->nr_succeed_tx_packets++; diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index 9aeeb6553a9..2a599fb772d 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -4555,7 +4555,7 @@ static int b43_wireless_init(struct ssb_device *dev) BIT(NL80211_IFTYPE_ADHOC); hw->queues = b43_modparam_qos ? 4 : 1; - hw->max_altrates = 1; + hw->max_rates = 2; SET_IEEE80211_DEV(hw, dev->dev); if (is_valid_ether_addr(sprom->et1mac)) SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac); diff --git a/drivers/net/wireless/b43/pio.c b/drivers/net/wireless/b43/pio.c index 40159126759..1036bef8c4c 100644 --- a/drivers/net/wireless/b43/pio.c +++ b/drivers/net/wireless/b43/pio.c @@ -587,9 +587,8 @@ void b43_pio_handle_txstatus(struct b43_wldev *dev, spin_lock(&q->lock); /* IRQs are already disabled. */ info = IEEE80211_SKB_CB(pack->skb); - memset(&info->status, 0, sizeof(info->status)); - b43_fill_txstatus_report(info, status); + b43_fill_txstatus_report(dev, info, status); total_len = pack->skb->len + b43_txhdr_size(dev); total_len = roundup(total_len, 4); diff --git a/drivers/net/wireless/b43/xmit.c b/drivers/net/wireless/b43/xmit.c index 2fabcf8f047..adba89b816d 100644 --- a/drivers/net/wireless/b43/xmit.c +++ b/drivers/net/wireless/b43/xmit.c @@ -185,7 +185,7 @@ int b43_generate_txhdr(struct b43_wldev *dev, u8 *_txhdr, const unsigned char *fragment_data, unsigned int fragment_len, - const struct ieee80211_tx_info *info, + struct ieee80211_tx_info *info, u16 cookie) { struct b43_txhdr *txhdr = (struct b43_txhdr *)_txhdr; @@ -202,6 +202,7 @@ int b43_generate_txhdr(struct b43_wldev *dev, u16 phy_ctl = 0; u8 extra_ft = 0; struct ieee80211_rate *txrate; + struct ieee80211_tx_rate *rates; memset(txhdr, 0, sizeof(*txhdr)); @@ -291,7 +292,7 @@ int b43_generate_txhdr(struct b43_wldev *dev, phy_ctl |= B43_TXH_PHY_ENC_OFDM; else phy_ctl |= B43_TXH_PHY_ENC_CCK; - if (info->flags & IEEE80211_TX_CTL_SHORT_PREAMBLE) + if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) phy_ctl |= B43_TXH_PHY_SHORTPRMBL; switch (b43_ieee80211_antenna_sanitize(dev, info->antenna_sel_tx)) { @@ -314,6 +315,7 @@ int b43_generate_txhdr(struct b43_wldev *dev, B43_WARN_ON(1); } + rates = info->control.rates; /* MAC control */ if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) mac_ctl |= B43_TXH_MAC_ACK; @@ -324,12 +326,22 @@ int b43_generate_txhdr(struct b43_wldev *dev, mac_ctl |= B43_TXH_MAC_STMSDU; if (phy->type == B43_PHYTYPE_A) mac_ctl |= B43_TXH_MAC_5GHZ; - if (info->flags & IEEE80211_TX_CTL_LONG_RETRY_LIMIT) + + /* Overwrite rates[0].count to make the retry calculation + * in the tx status easier. need the actual retry limit to + * detect whether the fallback rate was used. + */ + if ((rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) || + (rates[0].count <= dev->wl->hw->conf.long_frame_max_tx_count)) { + rates[0].count = dev->wl->hw->conf.long_frame_max_tx_count; mac_ctl |= B43_TXH_MAC_LONGFRAME; + } else { + rates[0].count = dev->wl->hw->conf.short_frame_max_tx_count; + } /* Generate the RTS or CTS-to-self frame */ - if ((info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) || - (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)) { + if ((rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) || + (rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)) { unsigned int len; struct ieee80211_hdr *hdr; int rts_rate, rts_rate_fb; @@ -344,7 +356,7 @@ int b43_generate_txhdr(struct b43_wldev *dev, rts_rate_fb = b43_calc_fallback_rate(rts_rate); rts_rate_fb_ofdm = b43_is_ofdm_rate(rts_rate_fb); - if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) { + if (rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { struct ieee80211_cts *cts; if (b43_is_old_txhdr_format(dev)) { @@ -687,10 +699,18 @@ void b43_handle_txstatus(struct b43_wldev *dev, /* Fill out the mac80211 TXstatus report based on the b43-specific * txstatus report data. This returns a boolean whether the frame was * successfully transmitted. */ -bool b43_fill_txstatus_report(struct ieee80211_tx_info *report, +bool b43_fill_txstatus_report(struct b43_wldev *dev, + struct ieee80211_tx_info *report, const struct b43_txstatus *status) { bool frame_success = 1; + int retry_limit; + + /* preserve the confiured retry limit before clearing the status + * The xmit function has overwritten the rc's value with the actual + * retry limit done by the hardware */ + retry_limit = report->status.rates[0].count; + ieee80211_tx_info_clear_status(report); if (status->acked) { /* The frame was ACKed. */ @@ -700,14 +720,32 @@ bool b43_fill_txstatus_report(struct ieee80211_tx_info *report, if (!(report->flags & IEEE80211_TX_CTL_NO_ACK)) { /* ...but we expected an ACK. */ frame_success = 0; - report->status.excessive_retries = 1; } } if (status->frame_count == 0) { /* The frame was not transmitted at all. */ - report->status.retry_count = 0; - } else - report->status.retry_count = status->frame_count - 1; + report->status.rates[0].count = 0; + } else if (status->rts_count > dev->wl->hw->conf.short_frame_max_tx_count) { + /* + * If the short retries (RTS, not data frame) have exceeded + * the limit, the hw will not have tried the selected rate, + * but will have used the fallback rate instead. + * Don't let the rate control count attempts for the selected + * rate in this case, otherwise the statistics will be off. + */ + report->status.rates[0].count = 0; + report->status.rates[1].count = status->frame_count; + } else { + if (status->frame_count > retry_limit) { + report->status.rates[0].count = retry_limit; + report->status.rates[1].count = status->frame_count - + retry_limit; + + } else { + report->status.rates[0].count = status->frame_count; + report->status.rates[1].idx = -1; + } + } return frame_success; } diff --git a/drivers/net/wireless/b43/xmit.h b/drivers/net/wireless/b43/xmit.h index 0215faf4754..4fb2a190f7a 100644 --- a/drivers/net/wireless/b43/xmit.h +++ b/drivers/net/wireless/b43/xmit.h @@ -178,7 +178,7 @@ int b43_generate_txhdr(struct b43_wldev *dev, u8 * txhdr, const unsigned char *fragment_data, unsigned int fragment_len, - const struct ieee80211_tx_info *txctl, u16 cookie); + struct ieee80211_tx_info *txctl, u16 cookie); /* Transmit Status */ struct b43_txstatus { @@ -294,7 +294,8 @@ void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr); void b43_handle_txstatus(struct b43_wldev *dev, const struct b43_txstatus *status); -bool b43_fill_txstatus_report(struct ieee80211_tx_info *report, +bool b43_fill_txstatus_report(struct b43_wldev *dev, + struct ieee80211_tx_info *report, const struct b43_txstatus *status); void b43_tx_suspend(struct b43_wldev *dev); diff --git a/drivers/net/wireless/b43legacy/dma.c b/drivers/net/wireless/b43legacy/dma.c index fb6819e40f3..308c2647f00 100644 --- a/drivers/net/wireless/b43legacy/dma.c +++ b/drivers/net/wireless/b43legacy/dma.c @@ -1411,6 +1411,7 @@ void b43legacy_dma_handle_txstatus(struct b43legacy_wldev *dev, struct b43legacy_dmaring *ring; struct b43legacy_dmadesc_generic *desc; struct b43legacy_dmadesc_meta *meta; + int retry_limit; int slot; ring = parse_cookie(dev, status->cookie, &slot); @@ -1437,25 +1438,42 @@ void b43legacy_dma_handle_txstatus(struct b43legacy_wldev *dev, struct ieee80211_tx_info *info; BUG_ON(!meta->skb); info = IEEE80211_SKB_CB(meta->skb); - /* Call back to inform the ieee80211 subsystem about the - * status of the transmission. - * Some fields of txstat are already filled in dma_tx(). - */ - memset(&info->status, 0, sizeof(info->status)); + /* preserve the confiured retry limit before clearing the status + * The xmit function has overwritten the rc's value with the actual + * retry limit done by the hardware */ + retry_limit = info->status.rates[0].count; + ieee80211_tx_info_clear_status(info); - if (status->acked) { + if (status->acked) info->flags |= IEEE80211_TX_STAT_ACK; + + if (status->rts_count > dev->wl->hw->conf.short_frame_max_tx_count) { + /* + * If the short retries (RTS, not data frame) have exceeded + * the limit, the hw will not have tried the selected rate, + * but will have used the fallback rate instead. + * Don't let the rate control count attempts for the selected + * rate in this case, otherwise the statistics will be off. + */ + info->status.rates[0].count = 0; + info->status.rates[1].count = status->frame_count; } else { - if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) - info->status.excessive_retries = 1; + if (status->frame_count > retry_limit) { + info->status.rates[0].count = retry_limit; + info->status.rates[1].count = status->frame_count - + retry_limit; + + } else { + info->status.rates[0].count = status->frame_count; + info->status.rates[1].idx = -1; + } } - if (status->frame_count == 0) { - /* The frame was not transmitted at all. */ - info->status.retry_count = 0; - } else - info->status.retry_count = status->frame_count - - 1; + + /* Call back to inform the ieee80211 subsystem about the + * status of the transmission. + * Some fields of txstat are already filled in dma_tx(). + */ ieee80211_tx_status_irqsafe(dev->wl->hw, meta->skb); /* skb is freed by ieee80211_tx_status_irqsafe() */ meta->skb = NULL; diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c index 78e46365f69..9edbdf9cb50 100644 --- a/drivers/net/wireless/b43legacy/main.c +++ b/drivers/net/wireless/b43legacy/main.c @@ -3682,7 +3682,7 @@ static int b43legacy_wireless_init(struct ssb_device *dev) BIT(NL80211_IFTYPE_WDS) | BIT(NL80211_IFTYPE_ADHOC); hw->queues = 1; /* FIXME: hardware has more queues */ - hw->max_altrates = 1; + hw->max_rates = 2; SET_IEEE80211_DEV(hw, dev->dev); if (is_valid_ether_addr(sprom->et1mac)) SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac); diff --git a/drivers/net/wireless/b43legacy/pio.c b/drivers/net/wireless/b43legacy/pio.c index a86c7647fa2..746d5361bba 100644 --- a/drivers/net/wireless/b43legacy/pio.c +++ b/drivers/net/wireless/b43legacy/pio.c @@ -491,6 +491,7 @@ void b43legacy_pio_handle_txstatus(struct b43legacy_wldev *dev, struct b43legacy_pioqueue *queue; struct b43legacy_pio_txpacket *packet; struct ieee80211_tx_info *info; + int retry_limit; queue = parse_cookie(dev, status->cookie, &packet); B43legacy_WARN_ON(!queue); @@ -503,11 +504,37 @@ void b43legacy_pio_handle_txstatus(struct b43legacy_wldev *dev, sizeof(struct b43legacy_txhdr_fw3)); info = IEEE80211_SKB_CB(packet->skb); - memset(&info->status, 0, sizeof(info->status)); + + /* preserve the confiured retry limit before clearing the status + * The xmit function has overwritten the rc's value with the actual + * retry limit done by the hardware */ + retry_limit = info->status.rates[0].count; + ieee80211_tx_info_clear_status(info); if (status->acked) info->flags |= IEEE80211_TX_STAT_ACK; - info->status.retry_count = status->frame_count - 1; + + if (status->rts_count > dev->wl->hw->conf.short_frame_max_tx_count) { + /* + * If the short retries (RTS, not data frame) have exceeded + * the limit, the hw will not have tried the selected rate, + * but will have used the fallback rate instead. + * Don't let the rate control count attempts for the selected + * rate in this case, otherwise the statistics will be off. + */ + info->status.rates[0].count = 0; + info->status.rates[1].count = status->frame_count; + } else { + if (status->frame_count > retry_limit) { + info->status.rates[0].count = retry_limit; + info->status.rates[1].count = status->frame_count - + retry_limit; + + } else { + info->status.rates[0].count = status->frame_count; + info->status.rates[1].idx = -1; + } + } ieee80211_tx_status_irqsafe(dev->wl->hw, packet->skb); packet->skb = NULL; diff --git a/drivers/net/wireless/b43legacy/xmit.c b/drivers/net/wireless/b43legacy/xmit.c index 65e83378160..12fca99f757 100644 --- a/drivers/net/wireless/b43legacy/xmit.c +++ b/drivers/net/wireless/b43legacy/xmit.c @@ -188,7 +188,7 @@ static int generate_txhdr_fw3(struct b43legacy_wldev *dev, struct b43legacy_txhdr_fw3 *txhdr, const unsigned char *fragment_data, unsigned int fragment_len, - const struct ieee80211_tx_info *info, + struct ieee80211_tx_info *info, u16 cookie) { const struct ieee80211_hdr *wlhdr; @@ -201,6 +201,7 @@ static int generate_txhdr_fw3(struct b43legacy_wldev *dev, u32 mac_ctl = 0; u16 phy_ctl = 0; struct ieee80211_rate *tx_rate; + struct ieee80211_tx_rate *rates; wlhdr = (const struct ieee80211_hdr *)fragment_data; @@ -274,7 +275,7 @@ static int generate_txhdr_fw3(struct b43legacy_wldev *dev, /* PHY TX Control word */ if (rate_ofdm) phy_ctl |= B43legacy_TX4_PHY_OFDM; - if (dev->short_preamble) + if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) phy_ctl |= B43legacy_TX4_PHY_SHORTPRMBL; switch (info->antenna_sel_tx) { case 0: @@ -291,6 +292,7 @@ static int generate_txhdr_fw3(struct b43legacy_wldev *dev, } /* MAC control */ + rates = info->control.rates; if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) mac_ctl |= B43legacy_TX4_MAC_ACK; if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) @@ -299,12 +301,22 @@ static int generate_txhdr_fw3(struct b43legacy_wldev *dev, mac_ctl |= B43legacy_TX4_MAC_STMSDU; if (rate_fb_ofdm) mac_ctl |= B43legacy_TX4_MAC_FALLBACKOFDM; - if (info->flags & IEEE80211_TX_CTL_LONG_RETRY_LIMIT) + + /* Overwrite rates[0].count to make the retry calculation + * in the tx status easier. need the actual retry limit to + * detect whether the fallback rate was used. + */ + if ((rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) || + (rates[0].count <= dev->wl->hw->conf.long_frame_max_tx_count)) { + rates[0].count = dev->wl->hw->conf.long_frame_max_tx_count; mac_ctl |= B43legacy_TX4_MAC_LONGFRAME; + } else { + rates[0].count = dev->wl->hw->conf.short_frame_max_tx_count; + } /* Generate the RTS or CTS-to-self frame */ - if ((info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) || - (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)) { + if ((rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) || + (rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)) { unsigned int len; struct ieee80211_hdr *hdr; int rts_rate; @@ -319,7 +331,7 @@ static int generate_txhdr_fw3(struct b43legacy_wldev *dev, if (rts_rate_fb_ofdm) mac_ctl |= B43legacy_TX4_MAC_CTSFALLBACKOFDM; - if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) { + if (rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { ieee80211_ctstoself_get(dev->wl->hw, info->control.vif, fragment_data, @@ -362,7 +374,7 @@ int b43legacy_generate_txhdr(struct b43legacy_wldev *dev, u8 *txhdr, const unsigned char *fragment_data, unsigned int fragment_len, - const struct ieee80211_tx_info *info, + struct ieee80211_tx_info *info, u16 cookie) { return generate_txhdr_fw3(dev, (struct b43legacy_txhdr_fw3 *)txhdr, diff --git a/drivers/net/wireless/b43legacy/xmit.h b/drivers/net/wireless/b43legacy/xmit.h index e56777e0fea..62e09d02788 100644 --- a/drivers/net/wireless/b43legacy/xmit.h +++ b/drivers/net/wireless/b43legacy/xmit.h @@ -80,7 +80,7 @@ int b43legacy_generate_txhdr(struct b43legacy_wldev *dev, u8 *txhdr, const unsigned char *fragment_data, unsigned int fragment_len, - const struct ieee80211_tx_info *info, + struct ieee80211_tx_info *info, u16 cookie); diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c index c25daec4f93..f440ed0fe54 100644 --- a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c +++ b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c @@ -422,34 +422,6 @@ static void rs_free_sta(void *priv, struct ieee80211_sta *sta, } -/* - * get ieee prev rate from rate scale table. - * for A and B mode we need to overright prev - * value - */ -static int rs_adjust_next_rate(struct iwl3945_priv *priv, int rate) -{ - int next_rate = iwl3945_get_prev_ieee_rate(rate); - - switch (priv->band) { - case IEEE80211_BAND_5GHZ: - if (rate == IWL_RATE_12M_INDEX) - next_rate = IWL_RATE_9M_INDEX; - else if (rate == IWL_RATE_6M_INDEX) - next_rate = IWL_RATE_6M_INDEX; - break; -/* XXX cannot be invoked in current mac80211 so not a regression - case MODE_IEEE80211B: - if (rate == IWL_RATE_11M_INDEX_TABLE) - next_rate = IWL_RATE_5M_INDEX_TABLE; - break; - */ - default: - break; - } - - return next_rate; -} /** * rs_tx_status - Update rate control values based on Tx results * @@ -460,17 +432,21 @@ static void rs_tx_status(void *priv_rate, struct ieee80211_supported_band *sband struct ieee80211_sta *sta, void *priv_sta, struct sk_buff *skb) { - u8 retries, current_count; + u8 retries = 0, current_count; int scale_rate_index, first_index, last_index; unsigned long flags; struct iwl3945_priv *priv = (struct iwl3945_priv *)priv_rate; struct iwl3945_rs_sta *rs_sta = priv_sta; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + int i; IWL_DEBUG_RATE("enter\n"); - retries = info->status.retry_count; - first_index = sband->bitrates[info->tx_rate_idx].hw_value; + for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) + retries += info->status.rates[i].count; + retries--; + + first_index = sband->bitrates[info->status.rates[0].idx].hw_value; if ((first_index < 0) || (first_index >= IWL_RATE_COUNT)) { IWL_DEBUG_RATE("leave: Rate out of bounds: %d\n", first_index); return; @@ -502,7 +478,7 @@ static void rs_tx_status(void *priv_rate, struct ieee80211_supported_band *sband last_index = scale_rate_index; } else { current_count = priv->retry_rate; - last_index = rs_adjust_next_rate(priv, + last_index = iwl3945_rs_next_rate(priv, scale_rate_index); } @@ -518,7 +494,7 @@ static void rs_tx_status(void *priv_rate, struct ieee80211_supported_band *sband if (retries) scale_rate_index = - rs_adjust_next_rate(priv, scale_rate_index); + iwl3945_rs_next_rate(priv, scale_rate_index); } @@ -630,10 +606,11 @@ static u16 iwl3945_get_adjacent_rate(struct iwl3945_rs_sta *rs_sta, * rate table and must reference the driver allocated rate table * */ -static void rs_get_rate(void *priv_r, struct ieee80211_supported_band *sband, - struct ieee80211_sta *sta, void *priv_sta, - struct sk_buff *skb, struct rate_selection *sel) +static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta, + void *priv_sta, struct ieee80211_tx_rate_control *txrc) { + struct ieee80211_supported_band *sband = txrc->sband; + struct sk_buff *skb = txrc->skb; u8 low = IWL_RATE_INVALID; u8 high = IWL_RATE_INVALID; u16 high_low; @@ -649,6 +626,7 @@ static void rs_get_rate(void *priv_r, struct ieee80211_supported_band *sband, struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; u16 fc, rate_mask; struct iwl3945_priv *priv = (struct iwl3945_priv *)priv_r; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); IWL_DEBUG_RATE("enter\n"); @@ -659,7 +637,7 @@ static void rs_get_rate(void *priv_r, struct ieee80211_supported_band *sband, is_multicast_ether_addr(hdr->addr1) || !sta || !priv_sta) { IWL_DEBUG_RATE("leave: No STA priv data to update!\n"); - sel->rate_idx = rate_lowest_index(sband, sta); + info->control.rates[0].idx = rate_lowest_index(sband, sta); return; } @@ -792,9 +770,10 @@ static void rs_get_rate(void *priv_r, struct ieee80211_supported_band *sband, rs_sta->last_txrate_idx = index; if (sband->band == IEEE80211_BAND_5GHZ) - sel->rate_idx = rs_sta->last_txrate_idx - IWL_FIRST_OFDM_RATE; + info->control.rates[0].idx = rs_sta->last_txrate_idx - + IWL_FIRST_OFDM_RATE; else - sel->rate_idx = rs_sta->last_txrate_idx; + info->control.rates[0].idx = rs_sta->last_txrate_idx; IWL_DEBUG_RATE("leave: %d\n", index); } diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c index 8a00245be51..7afafb62970 100644 --- a/drivers/net/wireless/iwlwifi/iwl-3945.c +++ b/drivers/net/wireless/iwlwifi/iwl-3945.c @@ -261,6 +261,35 @@ static inline const char *iwl3945_get_tx_fail_reason(u32 status) } #endif +/* + * get ieee prev rate from rate scale table. + * for A and B mode we need to overright prev + * value + */ +int iwl3945_rs_next_rate(struct iwl3945_priv *priv, int rate) +{ + int next_rate = iwl3945_get_prev_ieee_rate(rate); + + switch (priv->band) { + case IEEE80211_BAND_5GHZ: + if (rate == IWL_RATE_12M_INDEX) + next_rate = IWL_RATE_9M_INDEX; + else if (rate == IWL_RATE_6M_INDEX) + next_rate = IWL_RATE_6M_INDEX; + break; +/* XXX cannot be invoked in current mac80211 so not a regression + case MODE_IEEE80211B: + if (rate == IWL_RATE_11M_INDEX_TABLE) + next_rate = IWL_RATE_5M_INDEX_TABLE; + break; + */ + default: + break; + } + + return next_rate; +} + /** * iwl3945_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd @@ -308,6 +337,7 @@ static void iwl3945_rx_reply_tx(struct iwl3945_priv *priv, struct iwl3945_tx_resp *tx_resp = (void *)&pkt->u.raw[0]; u32 status = le32_to_cpu(tx_resp->status); int rate_idx; + int fail, i; if ((index >= txq->q.n_bd) || (iwl3945_x2_queue_used(&txq->q, index) == 0)) { IWL_ERROR("Read index for DMA queue txq_id (%d) index %d " @@ -318,9 +348,36 @@ static void iwl3945_rx_reply_tx(struct iwl3945_priv *priv, } info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb[0]); - memset(&info->status, 0, sizeof(info->status)); + ieee80211_tx_info_clear_status(info); + + /* Fill the MRR chain with some info about on-chip retransmissions */ + rate_idx = iwl3945_hwrate_to_plcp_idx(tx_resp->rate); + if (info->band == IEEE80211_BAND_5GHZ) + rate_idx -= IWL_FIRST_OFDM_RATE; + + fail = tx_resp->failure_frame; + for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { + int next = iwl3945_rs_next_rate(priv, rate_idx); + + info->status.rates[i].idx = rate_idx; + + /* + * Put remaining into the last count as best approximation + * of saying exactly what the hardware would have done... + */ + if ((rate_idx == next) || (i == IEEE80211_TX_MAX_RATES - 1)) { + info->status.rates[i].count = fail; + break; + } + + info->status.rates[i].count = priv->retry_rate; + fail -= priv->retry_rate; + rate_idx = next; + if (fail <= 0) + break; + } + info->status.rates[i].count++; /* add final attempt */ - info->status.retry_count = tx_resp->failure_frame; /* tx_status->rts_retry_count = tx_resp->failure_rts; */ info->flags |= ((status & TX_STATUS_MSK) == TX_STATUS_SUCCESS) ? IEEE80211_TX_STAT_ACK : 0; @@ -329,10 +386,6 @@ static void iwl3945_rx_reply_tx(struct iwl3945_priv *priv, txq_id, iwl3945_get_tx_fail_reason(status), status, tx_resp->rate, tx_resp->failure_frame); - rate_idx = iwl3945_hwrate_to_plcp_idx(tx_resp->rate); - if (info->band == IEEE80211_BAND_5GHZ) - rate_idx -= IWL_FIRST_OFDM_RATE; - info->tx_rate_idx = rate_idx; IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index); iwl3945_tx_queue_reclaim(priv, txq_id, index); diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.h b/drivers/net/wireless/iwlwifi/iwl-3945.h index bdd32475b99..592c5958723 100644 --- a/drivers/net/wireless/iwlwifi/iwl-3945.h +++ b/drivers/net/wireless/iwlwifi/iwl-3945.h @@ -954,6 +954,8 @@ static inline int is_channel_ibss(const struct iwl3945_channel_info *ch) extern const struct iwl3945_channel_info *iwl3945_get_channel_info( const struct iwl3945_priv *priv, enum ieee80211_band band, u16 channel); +extern int iwl3945_rs_next_rate(struct iwl3945_priv *priv, int rate); + /* Requires full declaration of iwl3945_priv before including */ #include "iwl-3945-io.h" diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c index 9838de5f436..222c2baa95c 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965.c +++ b/drivers/net/wireless/iwlwifi/iwl-4965.c @@ -619,10 +619,10 @@ static void iwl4965_gain_computation(struct iwl_priv *priv, static void iwl4965_rts_tx_cmd_flag(struct ieee80211_tx_info *info, __le32 *tx_flags) { - if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) { + if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) { *tx_flags |= TX_CMD_FLG_RTS_MSK; *tx_flags &= ~TX_CMD_FLG_CTS_MSK; - } else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) { + } else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { *tx_flags &= ~TX_CMD_FLG_RTS_MSK; *tx_flags |= TX_CMD_FLG_CTS_MSK; } @@ -2070,7 +2070,7 @@ static int iwl4965_tx_status_reply_tx(struct iwl_priv *priv, agg->frame_count, agg->start_idx, idx); info = IEEE80211_SKB_CB(priv->txq[txq_id].txb[idx].skb[0]); - info->status.retry_count = tx_resp->failure_frame; + info->status.rates[0].count = tx_resp->failure_frame + 1; info->flags &= ~IEEE80211_TX_CTL_AMPDU; info->flags |= iwl_is_tx_success(status)? IEEE80211_TX_STAT_ACK : 0; @@ -2227,7 +2227,7 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv, iwl_txq_check_empty(priv, sta_id, tid, txq_id); } } else { - info->status.retry_count = tx_resp->failure_frame; + info->status.rates[0].count = tx_resp->failure_frame + 1; info->flags |= iwl_is_tx_success(status) ? IEEE80211_TX_STAT_ACK : 0; iwl_hwrate_to_tx_control(priv, diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c index 56a3f0c84a1..d5282fa6508 100644 --- a/drivers/net/wireless/iwlwifi/iwl-5000.c +++ b/drivers/net/wireless/iwlwifi/iwl-5000.c @@ -390,8 +390,8 @@ static void iwl5000_chain_noise_reset(struct iwl_priv *priv) static void iwl5000_rts_tx_cmd_flag(struct ieee80211_tx_info *info, __le32 *tx_flags) { - if ((info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) || - (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)) + if ((info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) || + (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)) *tx_flags |= TX_CMD_FLG_RTS_CTS_MSK; else *tx_flags &= ~TX_CMD_FLG_RTS_CTS_MSK; @@ -1154,7 +1154,7 @@ static int iwl5000_tx_status_reply_tx(struct iwl_priv *priv, agg->frame_count, agg->start_idx, idx); info = IEEE80211_SKB_CB(priv->txq[txq_id].txb[idx].skb[0]); - info->status.retry_count = tx_resp->failure_frame; + info->status.rates[0].count = tx_resp->failure_frame + 1; info->flags &= ~IEEE80211_TX_CTL_AMPDU; info->flags |= iwl_is_tx_success(status)? IEEE80211_TX_STAT_ACK : 0; @@ -1307,7 +1307,7 @@ static void iwl5000_rx_reply_tx(struct iwl_priv *priv, iwl_txq_check_empty(priv, sta_id, tid, txq_id); } } else { - info->status.retry_count = tx_resp->failure_frame; + info->status.rates[0].count = tx_resp->failure_frame + 1; info->flags = iwl_is_tx_success(status) ? IEEE80211_TX_STAT_ACK : 0; iwl_hwrate_to_tx_control(priv, diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c index e10e0ca09ce..f685e5d6c28 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c @@ -798,7 +798,7 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband, !(info->flags & IEEE80211_TX_STAT_AMPDU)) return; - retries = info->status.retry_count; + retries = info->status.rates[0].count - 1; if (retries > 15) retries = 15; @@ -830,20 +830,15 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband, if (priv->band == IEEE80211_BAND_5GHZ) rs_index -= IWL_FIRST_OFDM_RATE; - if ((info->tx_rate_idx < 0) || - (tbl_type.is_SGI ^ - !!(info->flags & IEEE80211_TX_CTL_SHORT_GI)) || - (tbl_type.is_fat ^ - !!(info->flags & IEEE80211_TX_CTL_40_MHZ_WIDTH)) || - (tbl_type.is_dup ^ - !!(info->flags & IEEE80211_TX_CTL_DUP_DATA)) || - (tbl_type.ant_type ^ info->antenna_sel_tx) || - (!!(tx_rate & RATE_MCS_HT_MSK) ^ - !!(info->flags & IEEE80211_TX_CTL_OFDM_HT)) || - (!!(tx_rate & RATE_MCS_GF_MSK) ^ - !!(info->flags & IEEE80211_TX_CTL_GREEN_FIELD)) || + if ((info->status.rates[0].idx < 0) || + (tbl_type.is_SGI != !!(info->status.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)) || + (tbl_type.is_fat != !!(info->status.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)) || + (tbl_type.is_dup != !!(info->status.rates[0].flags & IEEE80211_TX_RC_DUP_DATA)) || + (tbl_type.ant_type != info->antenna_sel_tx) || + (!!(tx_rate & RATE_MCS_HT_MSK) != !!(info->status.rates[0].flags & IEEE80211_TX_RC_MCS)) || + (!!(tx_rate & RATE_MCS_GF_MSK) != !!(info->status.rates[0].flags & IEEE80211_TX_RC_GREEN_FIELD)) || (hw->wiphy->bands[priv->band]->bitrates[rs_index].bitrate != - hw->wiphy->bands[info->band]->bitrates[info->tx_rate_idx].bitrate)) { + hw->wiphy->bands[info->band]->bitrates[info->status.rates[0].idx].bitrate)) { IWL_DEBUG_RATE("initial rate does not match 0x%x\n", tx_rate); goto out; } @@ -2098,15 +2093,17 @@ static void rs_initialize_lq(struct iwl_priv *priv, return; } -static void rs_get_rate(void *priv_r, struct ieee80211_supported_band *sband, - struct ieee80211_sta *sta, void *priv_sta, - struct sk_buff *skb, struct rate_selection *sel) +static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta, void *priv_sta, + struct ieee80211_tx_rate_control *txrc) { int i; + struct sk_buff *skb = txrc->skb; + struct ieee80211_supported_band *sband = txrc->sband; struct iwl_priv *priv = (struct iwl_priv *)priv_r; struct ieee80211_conf *conf = &priv->hw->conf; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); __le16 fc; struct iwl_lq_sta *lq_sta; @@ -2117,7 +2114,7 @@ static void rs_get_rate(void *priv_r, struct ieee80211_supported_band *sband, fc = hdr->frame_control; if (!ieee80211_is_data(fc) || is_multicast_ether_addr(hdr->addr1) || !sta || !priv_sta) { - sel->rate_idx = rate_lowest_index(sband, sta); + info->control.rates[0].idx = rate_lowest_index(sband, sta); return; } @@ -2143,13 +2140,13 @@ static void rs_get_rate(void *priv_r, struct ieee80211_supported_band *sband, } if ((i < 0) || (i > IWL_RATE_COUNT)) { - sel->rate_idx = rate_lowest_index(sband, sta); + info->control.rates[0].idx = rate_lowest_index(sband, sta); return; } if (sband->band == IEEE80211_BAND_5GHZ) i -= IWL_FIRST_OFDM_RATE; - sel->rate_idx = i; + info->control.rates[0].idx = i; } static void *rs_alloc_sta(void *priv_rate, struct ieee80211_sta *sta, diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index 10f5a0a233f..2c4162e4814 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -88,26 +88,27 @@ EXPORT_SYMBOL(iwl_rates); * translate ucode response to mac80211 tx status control values */ void iwl_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags, - struct ieee80211_tx_info *control) + struct ieee80211_tx_info *info) { int rate_index; + struct ieee80211_tx_rate *r = &info->control.rates[0]; - control->antenna_sel_tx = + info->antenna_sel_tx = ((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS); if (rate_n_flags & RATE_MCS_HT_MSK) - control->flags |= IEEE80211_TX_CTL_OFDM_HT; + r->flags |= IEEE80211_TX_RC_MCS; if (rate_n_flags & RATE_MCS_GF_MSK) - control->flags |= IEEE80211_TX_CTL_GREEN_FIELD; + r->flags |= IEEE80211_TX_RC_GREEN_FIELD; if (rate_n_flags & RATE_MCS_FAT_MSK) - control->flags |= IEEE80211_TX_CTL_40_MHZ_WIDTH; + r->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH; if (rate_n_flags & RATE_MCS_DUP_MSK) - control->flags |= IEEE80211_TX_CTL_DUP_DATA; + r->flags |= IEEE80211_TX_RC_DUP_DATA; if (rate_n_flags & RATE_MCS_SGI_MSK) - control->flags |= IEEE80211_TX_CTL_SHORT_GI; + r->flags |= IEEE80211_TX_RC_SHORT_GI; rate_index = iwl_hwrate_to_plcp_idx(rate_n_flags); - if (control->band == IEEE80211_BAND_5GHZ) + if (info->band == IEEE80211_BAND_5GHZ) rate_index -= IWL_FIRST_OFDM_RATE; - control->tx_rate_idx = rate_index; + r->idx = rate_index; } EXPORT_SYMBOL(iwl_hwrate_to_tx_control); diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c index b1464c71ea0..2cd33b4e9e1 100644 --- a/drivers/net/wireless/iwlwifi/iwl3945-base.c +++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c @@ -2395,6 +2395,7 @@ static void iwl3945_build_tx_cmd_basic(struct iwl3945_priv *priv, { __le16 fc = hdr->frame_control; __le32 tx_flags = cmd->cmd.tx.tx_flags; + u8 rc_flags = info->control.rates[0].flags; cmd->cmd.tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) { @@ -2421,10 +2422,10 @@ static void iwl3945_build_tx_cmd_basic(struct iwl3945_priv *priv, tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; } - if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) { + if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) { tx_flags |= TX_CMD_FLG_RTS_MSK; tx_flags &= ~TX_CMD_FLG_CTS_MSK; - } else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) { + } else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { tx_flags &= ~TX_CMD_FLG_RTS_MSK; tx_flags |= TX_CMD_FLG_CTS_MSK; } diff --git a/drivers/net/wireless/libertas_tf/main.c b/drivers/net/wireless/libertas_tf/main.c index 241ddcfa352..d1fc305de5f 100644 --- a/drivers/net/wireless/libertas_tf/main.c +++ b/drivers/net/wireless/libertas_tf/main.c @@ -592,14 +592,14 @@ EXPORT_SYMBOL_GPL(lbtf_remove_card); void lbtf_send_tx_feedback(struct lbtf_private *priv, u8 retrycnt, u8 fail) { struct ieee80211_tx_info *info = IEEE80211_SKB_CB(priv->tx_skb); - memset(&info->status, 0, sizeof(info->status)); + + ieee80211_tx_info_clear_status(info); /* * Commented out, otherwise we never go beyond 1Mbit/s using mac80211 * default pid rc algorithm. * * info->status.retry_count = MRVL_DEFAULT_RETRIES - retrycnt; */ - info->status.excessive_retries = fail ? 1 : 0; if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) && !fail) info->flags |= IEEE80211_TX_STAT_ACK; skb_pull(priv->tx_skb, sizeof(struct txpd)); diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index e2aeef8de70..c5765232528 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -209,7 +209,7 @@ static bool mac80211_hwsim_tx_frame(struct ieee80211_hw *hw, /* TODO: set mactime */ rx_status.freq = data->channel->center_freq; rx_status.band = data->channel->band; - rx_status.rate_idx = info->tx_rate_idx; + rx_status.rate_idx = info->control.rates[0].idx; /* TODO: simulate signal strength (and optional packet drop) */ /* Copy skb to all enabled radios that are on the current frequency */ @@ -269,13 +269,9 @@ static int mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb) if (txi->control.sta) hwsim_check_sta_magic(txi->control.sta); - memset(&txi->status, 0, sizeof(txi->status)); - if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK)) { - if (ack) - txi->flags |= IEEE80211_TX_STAT_ACK; - else - txi->status.excessive_retries = 1; - } + ieee80211_tx_info_clear_status(txi); + if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack) + txi->flags |= IEEE80211_TX_STAT_ACK; ieee80211_tx_status_irqsafe(hw, skb); return NETDEV_TX_OK; } diff --git a/drivers/net/wireless/p54/p54common.c b/drivers/net/wireless/p54/p54common.c index 81a9756254f..65be5eca234 100644 --- a/drivers/net/wireless/p54/p54common.c +++ b/drivers/net/wireless/p54/p54common.c @@ -548,7 +548,7 @@ static void p54_rx_frame_sent(struct ieee80211_hw *dev, struct sk_buff *skb) spin_lock_irqsave(&priv->tx_queue.lock, flags); while (entry != (struct sk_buff *)&priv->tx_queue) { struct ieee80211_tx_info *info = IEEE80211_SKB_CB(entry); - range = (void *)info->driver_data; + range = (void *)info->rate_driver_data; if (range->start_addr == addr) { struct p54_control_hdr *entry_hdr; struct p54_tx_control_allocdata *entry_data; @@ -559,7 +559,7 @@ static void p54_rx_frame_sent(struct ieee80211_hw *dev, struct sk_buff *skb) struct memrecord *mr; ni = IEEE80211_SKB_CB(entry->next); - mr = (struct memrecord *)ni->driver_data; + mr = (struct memrecord *)ni->rate_driver_data; freed = mr->start_addr - last_addr; } else freed = priv->rx_end - last_addr; @@ -568,7 +568,7 @@ static void p54_rx_frame_sent(struct ieee80211_hw *dev, struct sk_buff *skb) __skb_unlink(entry, &priv->tx_queue); spin_unlock_irqrestore(&priv->tx_queue.lock, flags); - memset(&info->status, 0, sizeof(info->status)); + ieee80211_tx_info_clear_status(info); entry_hdr = (struct p54_control_hdr *) entry->data; entry_data = (struct p54_tx_control_allocdata *) entry_hdr->data; if ((entry_hdr->magic1 & cpu_to_le16(0x4000)) != 0) @@ -578,10 +578,8 @@ static void p54_rx_frame_sent(struct ieee80211_hw *dev, struct sk_buff *skb) if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) { if (!(payload->status & 0x01)) info->flags |= IEEE80211_TX_STAT_ACK; - else - info->status.excessive_retries = 1; } - info->status.retry_count = payload->retries - 1; + info->status.rates[0].count = payload->retries; info->status.ack_signal = p54_rssi_to_dbm(dev, le16_to_cpu(payload->ack_rssi)); skb_pull(entry, sizeof(*hdr) + pad + sizeof(*entry_data)); @@ -699,7 +697,7 @@ static void p54_assign_address(struct ieee80211_hw *dev, struct sk_buff *skb, while (left--) { u32 hole_size; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(entry); - struct memrecord *range = (void *)info->driver_data; + struct memrecord *range = (void *)info->rate_driver_data; hole_size = range->start_addr - last_addr; if (!target_skb && hole_size >= len) { target_skb = entry->prev; @@ -715,7 +713,7 @@ static void p54_assign_address(struct ieee80211_hw *dev, struct sk_buff *skb, largest_hole = max(largest_hole, priv->rx_end - last_addr - len); if (!skb_queue_empty(&priv->tx_queue)) { struct ieee80211_tx_info *info = IEEE80211_SKB_CB(target_skb); - struct memrecord *range = (void *)info->driver_data; + struct memrecord *range = (void *)info->rate_driver_data; target_addr = range->end_addr; } } else @@ -723,7 +721,7 @@ static void p54_assign_address(struct ieee80211_hw *dev, struct sk_buff *skb, if (skb) { struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - struct memrecord *range = (void *)info->driver_data; + struct memrecord *range = (void *)info->rate_driver_data; range->start_addr = target_addr; range->end_addr = target_addr + len; __skb_queue_after(&priv->tx_queue, target_skb, skb); @@ -806,6 +804,7 @@ static int p54_tx(struct ieee80211_hw *dev, struct sk_buff *skb) size_t padding, len; u8 rate; u8 cts_rate = 0x20; + u8 rc_flags; current_queue = &priv->tx_stats[skb_get_queue_mapping(skb) + 4]; if (unlikely(current_queue->len > current_queue->limit)) @@ -828,18 +827,19 @@ static int p54_tx(struct ieee80211_hw *dev, struct sk_buff *skb) hdr->magic1 = cpu_to_le16(0x0010); hdr->len = cpu_to_le16(len); hdr->type = (info->flags & IEEE80211_TX_CTL_NO_ACK) ? 0 : cpu_to_le16(1); - hdr->retry1 = hdr->retry2 = info->control.retry_limit; + hdr->retry1 = hdr->retry2 = info->control.rates[0].count; /* TODO: add support for alternate retry TX rates */ rate = ieee80211_get_tx_rate(dev, info)->hw_value; - if (info->flags & IEEE80211_TX_CTL_SHORT_PREAMBLE) { + rc_flags = info->control.rates[0].flags; + if (rc_flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) { rate |= 0x10; cts_rate |= 0x10; } - if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) { + if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) { rate |= 0x40; cts_rate |= ieee80211_get_rts_cts_rate(dev, info)->hw_value; - } else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) { + } else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { rate |= 0x20; cts_rate |= ieee80211_get_rts_cts_rate(dev, info)->hw_value; } diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c index 697806cf94e..e1feab8b6b0 100644 --- a/drivers/net/wireless/rt2x00/rt2x00dev.c +++ b/drivers/net/wireless/rt2x00/rt2x00dev.c @@ -498,7 +498,9 @@ void rt2x00lib_txdone(struct queue_entry *entry, { struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev; struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb); + struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb); enum data_queue_qid qid = skb_get_queue_mapping(entry->skb); + u8 rate_idx, rate_flags; /* * Unmap the skb. @@ -528,14 +530,18 @@ void rt2x00lib_txdone(struct queue_entry *entry, rt2x00dev->link.qual.tx_failed += test_bit(TXDONE_FAILURE, &txdesc->flags); + rate_idx = skbdesc->tx_rate_idx; + rate_flags = skbdesc->tx_rate_flags; + /* * Initialize TX status */ memset(&tx_info->status, 0, sizeof(tx_info->status)); tx_info->status.ack_signal = 0; - tx_info->status.excessive_retries = - test_bit(TXDONE_EXCESSIVE_RETRY, &txdesc->flags); - tx_info->status.retry_count = txdesc->retry; + tx_info->status.rates[0].idx = rate_idx; + tx_info->status.rates[0].flags = rate_flags; + tx_info->status.rates[0].count = txdesc->retry + 1; + tx_info->status.rates[1].idx = -1; /* terminate */ if (!(tx_info->flags & IEEE80211_TX_CTL_NO_ACK)) { if (test_bit(TXDONE_SUCCESS, &txdesc->flags)) @@ -544,7 +550,7 @@ void rt2x00lib_txdone(struct queue_entry *entry, rt2x00dev->low_level_stats.dot11ACKFailureCount++; } - if (tx_info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) { + if (rate_flags & IEEE80211_TX_RC_USE_RTS_CTS) { if (test_bit(TXDONE_SUCCESS, &txdesc->flags)) rt2x00dev->low_level_stats.dot11RTSSuccessCount++; else if (test_bit(TXDONE_FAILURE, &txdesc->flags)) diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c index 931183369f0..b32d59eafaa 100644 --- a/drivers/net/wireless/rt2x00/rt2x00mac.c +++ b/drivers/net/wireless/rt2x00/rt2x00mac.c @@ -39,7 +39,7 @@ static int rt2x00mac_tx_rts_cts(struct rt2x00_dev *rt2x00dev, unsigned int data_length; int retval = 0; - if (tx_info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) + if (tx_info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) data_length = sizeof(struct ieee80211_cts); else data_length = sizeof(struct ieee80211_rts); @@ -64,11 +64,11 @@ static int rt2x00mac_tx_rts_cts(struct rt2x00_dev *rt2x00dev, */ memcpy(skb->cb, frag_skb->cb, sizeof(skb->cb)); rts_info = IEEE80211_SKB_CB(skb); - rts_info->flags &= ~IEEE80211_TX_CTL_USE_RTS_CTS; - rts_info->flags &= ~IEEE80211_TX_CTL_USE_CTS_PROTECT; + rts_info->control.rates[0].flags &= ~IEEE80211_TX_RC_USE_RTS_CTS; + rts_info->control.rates[0].flags &= ~IEEE80211_TX_RC_USE_CTS_PROTECT; rts_info->flags &= ~IEEE80211_TX_CTL_REQ_TX_STATUS; - if (tx_info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) + if (tx_info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) rts_info->flags |= IEEE80211_TX_CTL_NO_ACK; else rts_info->flags &= ~IEEE80211_TX_CTL_NO_ACK; @@ -84,7 +84,7 @@ static int rt2x00mac_tx_rts_cts(struct rt2x00_dev *rt2x00dev, data_length += rt2x00crypto_tx_overhead(tx_info); #endif /* CONFIG_RT2X00_LIB_CRYPTO */ - if (tx_info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) + if (tx_info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) ieee80211_ctstoself_get(rt2x00dev->hw, tx_info->control.vif, frag_skb->data, data_length, tx_info, (struct ieee80211_cts *)(skb->data)); @@ -146,8 +146,8 @@ int rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) * inside the hardware. */ frame_control = le16_to_cpu(ieee80211hdr->frame_control); - if ((tx_info->flags & (IEEE80211_TX_CTL_USE_RTS_CTS | - IEEE80211_TX_CTL_USE_CTS_PROTECT)) && + if ((tx_info->control.rates[0].flags & (IEEE80211_TX_RC_USE_RTS_CTS | + IEEE80211_TX_RC_USE_CTS_PROTECT)) && !rt2x00dev->ops->hw->set_rts_threshold) { if (rt2x00queue_available(queue) <= 1) goto exit_fail; diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c index 451d410ecda..070786ebd07 100644 --- a/drivers/net/wireless/rt2x00/rt2x00queue.c +++ b/drivers/net/wireless/rt2x00/rt2x00queue.c @@ -230,8 +230,15 @@ static void rt2x00queue_create_tx_descriptor(struct queue_entry *entry, /* * Determine retry information. */ - txdesc->retry_limit = tx_info->control.retry_limit; - if (tx_info->flags & IEEE80211_TX_CTL_LONG_RETRY_LIMIT) + txdesc->retry_limit = tx_info->control.rates[0].count - 1; + /* + * XXX: If at this point we knew whether the HW is going to use + * the RETRY_MODE bit or the retry_limit (currently all + * use the RETRY_MODE bit) we could do something like b43 + * does, set the RETRY_MODE bit when the RC algorithm is + * requesting more than the long retry limit. + */ + if (tx_info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) __set_bit(ENTRY_TXD_RETRY_MODE, &txdesc->flags); /* @@ -371,10 +378,12 @@ static void rt2x00queue_write_tx_descriptor(struct queue_entry *entry, int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb) { + struct ieee80211_tx_info *tx_info; struct queue_entry *entry = rt2x00queue_get_entry(queue, Q_INDEX); struct txentry_desc txdesc; struct skb_frame_desc *skbdesc; unsigned int iv_len = 0; + u8 rate_idx, rate_flags; if (unlikely(rt2x00queue_full(queue))) return -EINVAL; @@ -399,13 +408,18 @@ int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb) iv_len = IEEE80211_SKB_CB(skb)->control.hw_key->iv_len; /* - * All information is retreived from the skb->cb array, + * All information is retrieved from the skb->cb array, * now we should claim ownership of the driver part of that - * array. + * array, preserving the bitrate index and flags. */ + tx_info = IEEE80211_SKB_CB(skb); + rate_idx = tx_info->control.rates[0].idx; + rate_flags = tx_info->control.rates[0].flags; skbdesc = get_skb_frame_desc(entry->skb); memset(skbdesc, 0, sizeof(*skbdesc)); skbdesc->entry = entry; + skbdesc->tx_rate_idx = rate_idx; + skbdesc->tx_rate_flags = rate_flags; /* * When hardware encryption is supported, and this frame diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.h b/drivers/net/wireless/rt2x00/rt2x00queue.h index 9dbf04f0f04..4d3c7246f9a 100644 --- a/drivers/net/wireless/rt2x00/rt2x00queue.h +++ b/drivers/net/wireless/rt2x00/rt2x00queue.h @@ -104,6 +104,8 @@ enum skb_frame_desc_flags { * * @flags: Frame flags, see &enum skb_frame_desc_flags. * @desc_len: Length of the frame descriptor. + * @tx_rate_idx: the index of the TX rate, used for TX status reporting + * @tx_rate_flags: the TX rate flags, used for TX status reporting * @desc: Pointer to descriptor part of the frame. * Note that this pointer could point to something outside * of the scope of the skb->data pointer. @@ -113,9 +115,12 @@ enum skb_frame_desc_flags { * @entry: The entry to which this sk buffer belongs. */ struct skb_frame_desc { - unsigned int flags; + u8 flags; + + u8 desc_len; + u8 tx_rate_idx; + u8 tx_rate_flags; - unsigned int desc_len; void *desc; __le32 iv; diff --git a/drivers/net/wireless/rtl8180_dev.c b/drivers/net/wireless/rtl8180_dev.c index e8d22393797..6c226c024dd 100644 --- a/drivers/net/wireless/rtl8180_dev.c +++ b/drivers/net/wireless/rtl8180_dev.c @@ -182,15 +182,13 @@ static void rtl8180_handle_tx(struct ieee80211_hw *dev, unsigned int prio) skb->len, PCI_DMA_TODEVICE); info = IEEE80211_SKB_CB(skb); - memset(&info->status, 0, sizeof(info->status)); + ieee80211_tx_info_clear_status(info); - if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) { - if (flags & RTL818X_TX_DESC_FLAG_TX_OK) - info->flags |= IEEE80211_TX_STAT_ACK; - else - info->status.excessive_retries = 1; - } - info->status.retry_count = flags & 0xFF; + if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) && + (flags & RTL818X_TX_DESC_FLAG_TX_OK)) + info->flags |= IEEE80211_TX_STAT_ACK; + + info->status.rates[0].count = (flags & 0xFF) + 1; ieee80211_tx_status_irqsafe(dev, skb); if (ring->entries - skb_queue_len(&ring->queue) == 2) @@ -243,6 +241,7 @@ static int rtl8180_tx(struct ieee80211_hw *dev, struct sk_buff *skb) unsigned int idx, prio; dma_addr_t mapping; u32 tx_flags; + u8 rc_flags; u16 plcp_len = 0; __le16 rts_duration = 0; @@ -261,15 +260,16 @@ static int rtl8180_tx(struct ieee80211_hw *dev, struct sk_buff *skb) tx_flags |= RTL818X_TX_DESC_FLAG_DMA | RTL818X_TX_DESC_FLAG_NO_ENC; - if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) { + rc_flags = info->control.rates[0].flags; + if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) { tx_flags |= RTL818X_TX_DESC_FLAG_RTS; tx_flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19; - } else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) { + } else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { tx_flags |= RTL818X_TX_DESC_FLAG_CTS; tx_flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19; } - if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) + if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) rts_duration = ieee80211_rts_duration(dev, priv->vif, skb->len, info); @@ -292,9 +292,9 @@ static int rtl8180_tx(struct ieee80211_hw *dev, struct sk_buff *skb) entry->plcp_len = cpu_to_le16(plcp_len); entry->tx_buf = cpu_to_le32(mapping); entry->frame_len = cpu_to_le32(skb->len); - entry->flags2 = info->control.retries[0].rate_idx >= 0 ? + entry->flags2 = info->control.rates[1].idx >= 0 ? ieee80211_get_alt_retry_rate(dev, info, 0)->bitrate << 4 : 0; - entry->retry_limit = info->control.retry_limit; + entry->retry_limit = info->control.rates[0].count; entry->flags = cpu_to_le32(tx_flags); __skb_queue_tail(&ring->queue, skb); if (ring->entries - skb_queue_len(&ring->queue) < 2) @@ -855,7 +855,7 @@ static int __devinit rtl8180_probe(struct pci_dev *pdev, priv = dev->priv; priv->pdev = pdev; - dev->max_altrates = 1; + dev->max_rates = 2; SET_IEEE80211_DEV(dev, &pdev->dev); pci_set_drvdata(pdev, dev); diff --git a/drivers/net/wireless/rtl8187_dev.c b/drivers/net/wireless/rtl8187_dev.c index cd839bcb6d7..6260ed8ce12 100644 --- a/drivers/net/wireless/rtl8187_dev.c +++ b/drivers/net/wireless/rtl8187_dev.c @@ -160,13 +160,13 @@ static void rtl8187_tx_cb(struct urb *urb) { struct sk_buff *skb = (struct sk_buff *)urb->context; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - struct ieee80211_hw *hw = info->driver_data[0]; + struct ieee80211_hw *hw = info->rate_driver_data[0]; struct rtl8187_priv *priv = hw->priv; - usb_free_urb(info->driver_data[1]); + usb_free_urb(info->rate_driver_data[1]); skb_pull(skb, priv->is_rtl8187b ? sizeof(struct rtl8187b_tx_hdr) : sizeof(struct rtl8187_tx_hdr)); - memset(&info->status, 0, sizeof(info->status)); + ieee80211_tx_info_clear_status(info); info->flags |= IEEE80211_TX_STAT_ACK; ieee80211_tx_status_irqsafe(hw, skb); } @@ -194,12 +194,12 @@ static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb) flags |= ieee80211_get_tx_rate(dev, info)->hw_value << 24; if (ieee80211_has_morefrags(((struct ieee80211_hdr *)skb->data)->frame_control)) flags |= RTL818X_TX_DESC_FLAG_MOREFRAG; - if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) { + if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) { flags |= RTL818X_TX_DESC_FLAG_RTS; flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19; rts_dur = ieee80211_rts_duration(dev, priv->vif, skb->len, info); - } else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) { + } else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { flags |= RTL818X_TX_DESC_FLAG_CTS; flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19; } @@ -210,7 +210,7 @@ static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb) hdr->flags = cpu_to_le32(flags); hdr->len = 0; hdr->rts_duration = rts_dur; - hdr->retry = cpu_to_le32(info->control.retry_limit << 8); + hdr->retry = cpu_to_le32((info->control.rates[0].count - 1) << 8); buf = hdr; ep = 2; @@ -228,7 +228,7 @@ static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb) memset(hdr, 0, sizeof(*hdr)); hdr->flags = cpu_to_le32(flags); hdr->rts_duration = rts_dur; - hdr->retry = cpu_to_le32(info->control.retry_limit << 8); + hdr->retry = cpu_to_le32((info->control.rates[0].count - 1) << 8); hdr->tx_duration = ieee80211_generic_frame_duration(dev, priv->vif, skb->len, txrate); @@ -240,8 +240,8 @@ static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb) ep = epmap[skb_get_queue_mapping(skb)]; } - info->driver_data[0] = dev; - info->driver_data[1] = urb; + info->rate_driver_data[0] = dev; + info->rate_driver_data[1] = urb; usb_fill_bulk_urb(urb, priv->udev, usb_sndbulkpipe(priv->udev, ep), buf, skb->len, rtl8187_tx_cb, skb); diff --git a/drivers/net/wireless/zd1211rw/zd_mac.c b/drivers/net/wireless/zd1211rw/zd_mac.c index 6c3e21887fc..2f0802b29c4 100644 --- a/drivers/net/wireless/zd1211rw/zd_mac.c +++ b/drivers/net/wireless/zd1211rw/zd_mac.c @@ -296,15 +296,14 @@ static void zd_op_stop(struct ieee80211_hw *hw) * If no status information has been requested, the skb is freed. */ static void tx_status(struct ieee80211_hw *hw, struct sk_buff *skb, - u32 flags, int ackssi, bool success) + int ackssi, bool success) { struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - memset(&info->status, 0, sizeof(info->status)); + ieee80211_tx_info_clear_status(info); - if (!success) - info->status.excessive_retries = 1; - info->flags |= flags; + if (success) + info->flags |= IEEE80211_TX_STAT_ACK; info->status.ack_signal = ackssi; ieee80211_tx_status_irqsafe(hw, skb); } @@ -326,7 +325,7 @@ void zd_mac_tx_failed(struct ieee80211_hw *hw) if (skb == NULL) return; - tx_status(hw, skb, 0, 0, 0); + tx_status(hw, skb, 0, 0); } /** @@ -342,12 +341,12 @@ void zd_mac_tx_failed(struct ieee80211_hw *hw) void zd_mac_tx_to_dev(struct sk_buff *skb, int error) { struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - struct ieee80211_hw *hw = info->driver_data[0]; + struct ieee80211_hw *hw = info->rate_driver_data[0]; skb_pull(skb, sizeof(struct zd_ctrlset)); if (unlikely(error || (info->flags & IEEE80211_TX_CTL_NO_ACK))) { - tx_status(hw, skb, 0, 0, !error); + tx_status(hw, skb, 0, !error); } else { struct sk_buff_head *q = &zd_hw_mac(hw)->ack_wait_queue; @@ -406,7 +405,8 @@ static int zd_calc_tx_length_us(u8 *service, u8 zd_rate, u16 tx_length) } static void cs_set_control(struct zd_mac *mac, struct zd_ctrlset *cs, - struct ieee80211_hdr *header, u32 flags) + struct ieee80211_hdr *header, + struct ieee80211_tx_info *info) { /* * CONTROL TODO: @@ -417,7 +417,7 @@ static void cs_set_control(struct zd_mac *mac, struct zd_ctrlset *cs, cs->control = 0; /* First fragment */ - if (flags & IEEE80211_TX_CTL_FIRST_FRAGMENT) + if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT) cs->control |= ZD_CS_NEED_RANDOM_BACKOFF; /* Multicast */ @@ -428,10 +428,10 @@ static void cs_set_control(struct zd_mac *mac, struct zd_ctrlset *cs, if (ieee80211_is_pspoll(header->frame_control)) cs->control |= ZD_CS_PS_POLL_FRAME; - if (flags & IEEE80211_TX_CTL_USE_RTS_CTS) + if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) cs->control |= ZD_CS_RTS; - if (flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) + if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) cs->control |= ZD_CS_SELF_CTS; /* FIXME: Management frame? */ @@ -517,12 +517,12 @@ static int fill_ctrlset(struct zd_mac *mac, txrate = ieee80211_get_tx_rate(mac->hw, info); cs->modulation = txrate->hw_value; - if (info->flags & IEEE80211_TX_CTL_SHORT_PREAMBLE) + if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) cs->modulation = txrate->hw_value_short; cs->tx_length = cpu_to_le16(frag_len); - cs_set_control(mac, cs, hdr, info->flags); + cs_set_control(mac, cs, hdr, info); packet_length = frag_len + sizeof(struct zd_ctrlset) + 10; ZD_ASSERT(packet_length <= 0xffff); @@ -577,7 +577,7 @@ static int zd_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb) if (r) return r; - info->driver_data[0] = hw; + info->rate_driver_data[0] = hw; r = zd_usb_tx(&mac->chip.usb, skb); if (r) @@ -618,7 +618,7 @@ static int filter_ack(struct ieee80211_hw *hw, struct ieee80211_hdr *rx_hdr, if (likely(!compare_ether_addr(tx_hdr->addr2, rx_hdr->addr1))) { __skb_unlink(skb, q); - tx_status(hw, skb, IEEE80211_TX_STAT_ACK, stats->signal, 1); + tx_status(hw, skb, stats->signal, 1); goto out; } } diff --git a/drivers/net/wireless/zd1211rw/zd_usb.c b/drivers/net/wireless/zd1211rw/zd_usb.c index a60ae86bd5c..d7a2f52e40c 100644 --- a/drivers/net/wireless/zd1211rw/zd_usb.c +++ b/drivers/net/wireless/zd1211rw/zd_usb.c @@ -907,7 +907,7 @@ free_urb: * it might be freed by zd_mac_tx_to_dev or mac80211) */ info = IEEE80211_SKB_CB(skb); - usb = &zd_hw_mac(info->driver_data[0])->chip.usb; + usb = &zd_hw_mac(info->rate_driver_data[0])->chip.usb; zd_mac_tx_to_dev(skb, urb->status); free_tx_urb(usb, urb); tx_dec_submitted_urbs(usb); diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 9801afb6254..3741c0a7978 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -214,29 +214,24 @@ struct ieee80211_bss_conf { * These flags are used with the @flags member of &ieee80211_tx_info. * * @IEEE80211_TX_CTL_REQ_TX_STATUS: request TX status callback for this frame. - * @IEEE80211_TX_CTL_USE_RTS_CTS: use RTS-CTS before sending frame - * @IEEE80211_TX_CTL_USE_CTS_PROTECT: use CTS protection for the frame (e.g., - * for combined 802.11g / 802.11b networks) + * @IEEE80211_TX_CTL_ASSIGN_SEQ: The driver has to assign a sequence + * number to this frame, taking care of not overwriting the fragment + * number and increasing the sequence number only when the + * IEEE80211_TX_CTL_FIRST_FRAGMENT flag is set. mac80211 will properly + * assign sequence numbers to QoS-data frames but cannot do so correctly + * for non-QoS-data and management frames because beacons need them from + * that counter as well and mac80211 cannot guarantee proper sequencing. + * If this flag is set, the driver should instruct the hardware to + * assign a sequence number to the frame or assign one itself. Cf. IEEE + * 802.11-2007 7.1.3.4.1 paragraph 3. This flag will always be set for + * beacons and always be clear for frames without a sequence number field. * @IEEE80211_TX_CTL_NO_ACK: tell the low level not to wait for an ack - * @IEEE80211_TX_CTL_RATE_CTRL_PROBE: TBD * @IEEE80211_TX_CTL_CLEAR_PS_FILT: clear powersave filter for destination * station - * @IEEE80211_TX_CTL_REQUEUE: TBD * @IEEE80211_TX_CTL_FIRST_FRAGMENT: this is a first fragment of the frame - * @IEEE80211_TX_CTL_SHORT_PREAMBLE: TBD - * @IEEE80211_TX_CTL_LONG_RETRY_LIMIT: this frame should be send using the - * through set_retry_limit configured long retry value * @IEEE80211_TX_CTL_SEND_AFTER_DTIM: send this frame after DTIM beacon * @IEEE80211_TX_CTL_AMPDU: this frame should be sent as part of an A-MPDU - * @IEEE80211_TX_CTL_OFDM_HT: this frame can be sent in HT OFDM rates. number - * of streams when this flag is on can be extracted from antenna_sel_tx, - * so if 1 antenna is marked use SISO, 2 antennas marked use MIMO, n - * antennas marked use MIMO_n. - * @IEEE80211_TX_CTL_GREEN_FIELD: use green field protection for this frame - * @IEEE80211_TX_CTL_40_MHZ_WIDTH: send this frame using 40 Mhz channel width - * @IEEE80211_TX_CTL_DUP_DATA: duplicate data frame on both 20 Mhz channels - * @IEEE80211_TX_CTL_SHORT_GI: send this frame using short guard interval - * @IEEE80211_TX_CTL_INJECTED: TBD + * @IEEE80211_TX_CTL_INJECTED: Frame was injected, internal to mac80211. * @IEEE80211_TX_STAT_TX_FILTERED: The frame was not transmitted * because the destination STA was in powersave mode. * @IEEE80211_TX_STAT_ACK: Frame was acknowledged @@ -244,62 +239,70 @@ struct ieee80211_bss_conf { * is for the whole aggregation. * @IEEE80211_TX_STAT_AMPDU_NO_BACK: no block ack was returned, * so consider using block ack request (BAR). - * @IEEE80211_TX_CTL_ASSIGN_SEQ: The driver has to assign a sequence - * number to this frame, taking care of not overwriting the fragment - * number and increasing the sequence number only when the - * IEEE80211_TX_CTL_FIRST_FRAGMENT flags is set. mac80211 will properly - * assign sequence numbers to QoS-data frames but cannot do so correctly - * for non-QoS-data and management frames because beacons need them from - * that counter as well and mac80211 cannot guarantee proper sequencing. - * If this flag is set, the driver should instruct the hardware to - * assign a sequence number to the frame or assign one itself. Cf. IEEE - * 802.11-2007 7.1.3.4.1 paragraph 3. This flag will always be set for - * beacons always be clear for frames without a sequence number field. + * @IEEE80211_TX_CTL_RATE_CTRL_PROBE: internal to mac80211, can be + * set by rate control algorithms to indicate probe rate, will + * be cleared for fragmented frames (except on the last fragment) + * @IEEE80211_TX_CTL_REQUEUE: REMOVE THIS */ enum mac80211_tx_control_flags { IEEE80211_TX_CTL_REQ_TX_STATUS = BIT(0), - IEEE80211_TX_CTL_USE_RTS_CTS = BIT(2), - IEEE80211_TX_CTL_USE_CTS_PROTECT = BIT(3), - IEEE80211_TX_CTL_NO_ACK = BIT(4), - IEEE80211_TX_CTL_RATE_CTRL_PROBE = BIT(5), - IEEE80211_TX_CTL_CLEAR_PS_FILT = BIT(6), - IEEE80211_TX_CTL_REQUEUE = BIT(7), - IEEE80211_TX_CTL_FIRST_FRAGMENT = BIT(8), - IEEE80211_TX_CTL_SHORT_PREAMBLE = BIT(9), - IEEE80211_TX_CTL_LONG_RETRY_LIMIT = BIT(10), - IEEE80211_TX_CTL_SEND_AFTER_DTIM = BIT(12), - IEEE80211_TX_CTL_AMPDU = BIT(13), - IEEE80211_TX_CTL_OFDM_HT = BIT(14), - IEEE80211_TX_CTL_GREEN_FIELD = BIT(15), - IEEE80211_TX_CTL_40_MHZ_WIDTH = BIT(16), - IEEE80211_TX_CTL_DUP_DATA = BIT(17), - IEEE80211_TX_CTL_SHORT_GI = BIT(18), - IEEE80211_TX_CTL_INJECTED = BIT(19), - IEEE80211_TX_STAT_TX_FILTERED = BIT(20), - IEEE80211_TX_STAT_ACK = BIT(21), - IEEE80211_TX_STAT_AMPDU = BIT(22), - IEEE80211_TX_STAT_AMPDU_NO_BACK = BIT(23), - IEEE80211_TX_CTL_ASSIGN_SEQ = BIT(24), + IEEE80211_TX_CTL_ASSIGN_SEQ = BIT(1), + IEEE80211_TX_CTL_NO_ACK = BIT(2), + IEEE80211_TX_CTL_CLEAR_PS_FILT = BIT(3), + IEEE80211_TX_CTL_FIRST_FRAGMENT = BIT(4), + IEEE80211_TX_CTL_SEND_AFTER_DTIM = BIT(5), + IEEE80211_TX_CTL_AMPDU = BIT(6), + IEEE80211_TX_CTL_INJECTED = BIT(7), + IEEE80211_TX_STAT_TX_FILTERED = BIT(8), + IEEE80211_TX_STAT_ACK = BIT(9), + IEEE80211_TX_STAT_AMPDU = BIT(10), + IEEE80211_TX_STAT_AMPDU_NO_BACK = BIT(11), + IEEE80211_TX_CTL_RATE_CTRL_PROBE = BIT(12), + + /* XXX: remove this */ + IEEE80211_TX_CTL_REQUEUE = BIT(13), }; +enum mac80211_rate_control_flags { + IEEE80211_TX_RC_USE_RTS_CTS = BIT(0), + IEEE80211_TX_RC_USE_CTS_PROTECT = BIT(1), + IEEE80211_TX_RC_USE_SHORT_PREAMBLE = BIT(2), + + /* rate index is an MCS rate number instead of an index */ + IEEE80211_TX_RC_MCS = BIT(3), + IEEE80211_TX_RC_GREEN_FIELD = BIT(4), + IEEE80211_TX_RC_40_MHZ_WIDTH = BIT(5), + IEEE80211_TX_RC_DUP_DATA = BIT(6), + IEEE80211_TX_RC_SHORT_GI = BIT(7), +}; + + +/* there are 40 bytes if you don't need the rateset to be kept */ +#define IEEE80211_TX_INFO_DRIVER_DATA_SIZE 40 -#define IEEE80211_TX_INFO_DRIVER_DATA_SIZE \ - (sizeof(((struct sk_buff *)0)->cb) - 8) -#define IEEE80211_TX_INFO_DRIVER_DATA_PTRS \ - (IEEE80211_TX_INFO_DRIVER_DATA_SIZE / sizeof(void *)) +/* if you do need the rateset, then you have less space */ +#define IEEE80211_TX_INFO_RATE_DRIVER_DATA_SIZE 24 -/* maximum number of alternate rate retry stages */ -#define IEEE80211_TX_MAX_ALTRATE 3 +/* maximum number of rate stages */ +#define IEEE80211_TX_MAX_RATES 5 /** - * struct ieee80211_tx_altrate - alternate rate selection/status + * struct ieee80211_tx_rate - rate selection/status * - * @rate_idx: rate index to attempt to send with + * @idx: rate index to attempt to send with + * @flags: rate control flags (&enum mac80211_rate_control_flags) * @limit: number of retries before fallback + * + * A value of -1 for @idx indicates an invalid rate and, if used + * in an array of retry rates, that no more rates should be tried. + * + * When used for transmit status reporting, the driver should + * always report the rate along with the flags it used. */ -struct ieee80211_tx_altrate { - s8 rate_idx; - u8 limit; +struct ieee80211_tx_rate { + s8 idx; + u8 count; + u8 flags; }; /** @@ -314,15 +317,12 @@ struct ieee80211_tx_altrate { * it may be NULL. * * @flags: transmit info flags, defined above - * @band: TBD - * @tx_rate_idx: TBD + * @band: the band to transmit on (use for checking for races) * @antenna_sel_tx: antenna to use, 0 for automatic diversity * @control: union for control data * @status: union for status data * @driver_data: array of driver_data pointers * @retry_count: number of retries - * @excessive_retries: set to 1 if the frame was retried many times - * but not acknowledged * @ampdu_ack_len: number of aggregated frames. * relevant only if IEEE80211_TX_STATUS_AMPDU was set. * @ampdu_ack_map: block ack bit map for the aggregation. @@ -333,31 +333,43 @@ struct ieee80211_tx_info { /* common information */ u32 flags; u8 band; - s8 tx_rate_idx; + u8 antenna_sel_tx; - /* 1 byte hole */ + /* 2 byte hole */ union { struct { + union { + /* rate control */ + struct { + struct ieee80211_tx_rate rates[ + IEEE80211_TX_MAX_RATES]; + s8 rts_cts_rate_idx; + }; + /* only needed before rate control */ + unsigned long jiffies; + }; /* NB: vif can be NULL for injected frames */ struct ieee80211_vif *vif; struct ieee80211_key_conf *hw_key; struct ieee80211_sta *sta; - unsigned long jiffies; - s8 rts_cts_rate_idx; - u8 retry_limit; - struct ieee80211_tx_altrate retries[IEEE80211_TX_MAX_ALTRATE]; } control; struct { + struct ieee80211_tx_rate rates[IEEE80211_TX_MAX_RATES]; + u8 ampdu_ack_len; u64 ampdu_ack_map; int ack_signal; - struct ieee80211_tx_altrate retries[IEEE80211_TX_MAX_ALTRATE + 1]; - u8 retry_count; - bool excessive_retries; - u8 ampdu_ack_len; + /* 8 bytes free */ } status; - void *driver_data[IEEE80211_TX_INFO_DRIVER_DATA_PTRS]; + struct { + struct ieee80211_tx_rate driver_rates[ + IEEE80211_TX_MAX_RATES]; + void *rate_driver_data[ + IEEE80211_TX_INFO_RATE_DRIVER_DATA_SIZE / sizeof(void *)]; + }; + void *driver_data[ + IEEE80211_TX_INFO_DRIVER_DATA_SIZE / sizeof(void *)]; }; }; @@ -366,6 +378,41 @@ static inline struct ieee80211_tx_info *IEEE80211_SKB_CB(struct sk_buff *skb) return (struct ieee80211_tx_info *)skb->cb; } +/** + * ieee80211_tx_info_clear_status - clear TX status + * + * @info: The &struct ieee80211_tx_info to be cleared. + * + * When the driver passes an skb back to mac80211, it must report + * a number of things in TX status. This function clears everything + * in the TX status but the rate control information (it does clear + * the count since you need to fill that in anyway). + * + * NOTE: You can only use this function if you do NOT use + * info->driver_data! Use info->rate_driver_data + * instead if you need only the less space that allows. + */ +static inline void +ieee80211_tx_info_clear_status(struct ieee80211_tx_info *info) +{ + int i; + + BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, status.rates) != + offsetof(struct ieee80211_tx_info, control.rates)); + BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, status.rates) != + offsetof(struct ieee80211_tx_info, driver_rates)); + BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, status.rates) != 8); + /* clear the rate counts */ + for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) + info->status.rates[i].count = 0; + + BUILD_BUG_ON( + offsetof(struct ieee80211_tx_info, status.ampdu_ack_len) != 23); + memset(&info->status.ampdu_ack_len, 0, + sizeof(struct ieee80211_tx_info) - + offsetof(struct ieee80211_tx_info, status.ampdu_ack_len)); +} + /** * enum mac80211_rx_flags - receive flags @@ -869,8 +916,8 @@ enum ieee80211_hw_flags { * @sta_data_size: size (in bytes) of the drv_priv data area * within &struct ieee80211_sta. * - * @max_altrates: maximum number of alternate rate retry stages - * @max_altrate_tries: maximum number of tries for each stage + * @max_rates: maximum number of alternate rate retry stages + * @max_rate_tries: maximum number of tries for each stage */ struct ieee80211_hw { struct ieee80211_conf conf; @@ -887,8 +934,8 @@ struct ieee80211_hw { u16 ampdu_queues; u16 max_listen_interval; s8 max_signal; - u8 max_altrates; - u8 max_altrate_tries; + u8 max_rates; + u8 max_rate_tries; }; /** @@ -927,9 +974,9 @@ static inline struct ieee80211_rate * ieee80211_get_tx_rate(const struct ieee80211_hw *hw, const struct ieee80211_tx_info *c) { - if (WARN_ON(c->tx_rate_idx < 0)) + if (WARN_ON(c->control.rates[0].idx < 0)) return NULL; - return &hw->wiphy->bands[c->band]->bitrates[c->tx_rate_idx]; + return &hw->wiphy->bands[c->band]->bitrates[c->control.rates[0].idx]; } static inline struct ieee80211_rate * @@ -945,9 +992,9 @@ static inline struct ieee80211_rate * ieee80211_get_alt_retry_rate(const struct ieee80211_hw *hw, const struct ieee80211_tx_info *c, int idx) { - if (c->control.retries[idx].rate_idx < 0) + if (c->control.rates[idx + 1].idx < 0) return NULL; - return &hw->wiphy->bands[c->band]->bitrates[c->control.retries[idx].rate_idx]; + return &hw->wiphy->bands[c->band]->bitrates[c->control.rates[idx + 1].idx]; } /** @@ -1840,17 +1887,30 @@ struct ieee80211_sta *ieee80211_find_sta(struct ieee80211_hw *hw, /* Rate control API */ + /** - * struct rate_selection - rate information for/from rate control algorithms - * - * @rate_idx: selected transmission rate index - * @nonerp_idx: Non-ERP rate to use instead if ERP cannot be used - * @probe_idx: rate for probing (or -1) - * @max_rate_idx: maximum rate index that can be used, this is - * input to the algorithm and will be enforced - */ -struct rate_selection { - s8 rate_idx, nonerp_idx, probe_idx, max_rate_idx; + * struct ieee80211_tx_rate_control - rate control information for/from RC algo + * + * @hw: The hardware the algorithm is invoked for. + * @sband: The band this frame is being transmitted on. + * @bss_conf: the current BSS configuration + * @reported_rate: The rate control algorithm can fill this in to indicate + * which rate should be reported to userspace as the current rate and + * used for rate calculations in the mesh network. + * @rts: whether RTS will be used for this frame because it is longer than the + * RTS threshold + * @short_preamble: whether mac80211 will request short-preamble transmission + * if the selected rate supports it + * @max_rate_idx: user-requested maximum rate (not MCS for now) + */ +struct ieee80211_tx_rate_control { + struct ieee80211_hw *hw; + struct ieee80211_supported_band *sband; + struct ieee80211_bss_conf *bss_conf; + struct sk_buff *skb; + struct ieee80211_tx_rate reported_rate; + bool rts, short_preamble; + u8 max_rate_idx; }; struct rate_control_ops { @@ -1869,10 +1929,8 @@ struct rate_control_ops { void (*tx_status)(void *priv, struct ieee80211_supported_band *sband, struct ieee80211_sta *sta, void *priv_sta, struct sk_buff *skb); - void (*get_rate)(void *priv, struct ieee80211_supported_band *sband, - struct ieee80211_sta *sta, void *priv_sta, - struct sk_buff *skb, - struct rate_selection *sel); + void (*get_rate)(void *priv, struct ieee80211_sta *sta, void *priv_sta, + struct ieee80211_tx_rate_control *txrc); void (*add_sta_debugfs)(void *priv, void *priv_sta, struct dentry *dir); diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 6f8756d26a9..fe4efdd4253 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -142,7 +142,6 @@ typedef unsigned __bitwise__ ieee80211_tx_result; #define IEEE80211_TX_FRAGMENTED BIT(0) #define IEEE80211_TX_UNICAST BIT(1) #define IEEE80211_TX_PS_BUFFERED BIT(2) -#define IEEE80211_TX_PROBE_LAST_FRAG BIT(3) struct ieee80211_tx_data { struct sk_buff *skb; @@ -153,11 +152,6 @@ struct ieee80211_tx_data { struct ieee80211_key *key; struct ieee80211_channel *channel; - s8 rate_idx; - /* use this rate (if set) for last fragment; rate can - * be set to lower rate for the first fragments, e.g., - * when using CTS protection with IEEE 802.11g. */ - s8 last_frag_rate_idx; /* Extra fragments (in addition to the first fragment * in skb) */ @@ -203,9 +197,7 @@ struct ieee80211_rx_data { struct ieee80211_tx_stored_packet { struct sk_buff *skb; struct sk_buff **extra_frag; - s8 last_frag_rate_idx; int num_extra_frag; - bool last_frag_rate_ctrl_probe; }; struct beacon_data { diff --git a/net/mac80211/main.c b/net/mac80211/main.c index ffff54944f9..88c1975a97a 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -41,6 +41,8 @@ */ struct ieee80211_tx_status_rtap_hdr { struct ieee80211_radiotap_header hdr; + u8 rate; + u8 padding_for_rate; __le16 tx_flags; u8 data_retries; } __attribute__ ((packed)); @@ -465,13 +467,28 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) struct ieee80211_sub_if_data *sdata; struct net_device *prev_dev = NULL; struct sta_info *sta; + int retry_count = -1, i; + + for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { + /* the HW cannot have attempted that rate */ + if (i >= hw->max_rates) { + info->status.rates[i].idx = -1; + info->status.rates[i].count = 0; + } + + retry_count += info->status.rates[i].count; + } + if (retry_count < 0) + retry_count = 0; rcu_read_lock(); + sband = local->hw.wiphy->bands[info->band]; + sta = sta_info_get(local, hdr->addr1); if (sta) { - if (info->status.excessive_retries && + if (!(info->flags & IEEE80211_TX_STAT_ACK) && test_sta_flags(sta, WLAN_STA_PS)) { /* * The STA is in power save mode, so assume @@ -502,12 +519,11 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) rcu_read_unlock(); return; } else { - if (info->status.excessive_retries) + if (!(info->flags & IEEE80211_TX_STAT_ACK)) sta->tx_retry_failed++; - sta->tx_retry_count += info->status.retry_count; + sta->tx_retry_count += retry_count; } - sband = local->hw.wiphy->bands[info->band]; rate_control_tx_status(local, sband, sta, skb); } @@ -528,9 +544,9 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) local->dot11TransmittedFrameCount++; if (is_multicast_ether_addr(hdr->addr1)) local->dot11MulticastTransmittedFrameCount++; - if (info->status.retry_count > 0) + if (retry_count > 0) local->dot11RetryCount++; - if (info->status.retry_count > 1) + if (retry_count > 1) local->dot11MultipleRetryCount++; } @@ -574,19 +590,30 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) rthdr->hdr.it_len = cpu_to_le16(sizeof(*rthdr)); rthdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_TX_FLAGS) | - (1 << IEEE80211_RADIOTAP_DATA_RETRIES)); + (1 << IEEE80211_RADIOTAP_DATA_RETRIES) | + (1 << IEEE80211_RADIOTAP_RATE)); if (!(info->flags & IEEE80211_TX_STAT_ACK) && !is_multicast_ether_addr(hdr->addr1)) rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_FAIL); - if ((info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) && - (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)) + /* + * XXX: Once radiotap gets the bitmap reset thing the vendor + * extensions proposal contains, we can actually report + * the whole set of tries we did. + */ + if ((info->status.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) || + (info->status.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)) rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_CTS); - else if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) + else if (info->status.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_RTS); + if (info->status.rates[0].idx >= 0 && + !(info->status.rates[0].flags & IEEE80211_TX_RC_MCS)) + rthdr->rate = sband->bitrates[ + info->status.rates[0].idx].bitrate / 5; - rthdr->data_retries = info->status.retry_count; + /* for now report the total retry_count */ + rthdr->data_retries = retry_count; /* XXX: is this sufficient for BPF? */ skb_set_mac_header(skb, 0); @@ -671,8 +698,9 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, BUG_ON(!ops->configure_filter); local->ops = ops; - local->hw.queues = 1; /* default */ - + /* set up some defaults */ + local->hw.queues = 1; + local->hw.max_rates = 1; local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD; local->hw.conf.long_frame_max_tx_count = 4; diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c index 501c7831adb..e8d573d592e 100644 --- a/net/mac80211/mesh_hwmp.c +++ b/net/mac80211/mesh_hwmp.c @@ -218,12 +218,16 @@ static u32 airtime_link_metric_get(struct ieee80211_local *local, if (sta->fail_avg >= 100) return MAX_METRIC; + + if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS) + return MAX_METRIC; + err = (sta->fail_avg << ARITH_SHIFT) / 100; /* bitrate is in units of 100 Kbps, while we need rate in units of * 1Mbps. This will be corrected on tx_time computation. */ - rate = sband->bitrates[sta->last_txrate_idx].bitrate; + rate = sband->bitrates[sta->last_tx_rate.idx].bitrate; tx_time = (device_constant + 10 * test_frame_len / rate); estimated_retx = ((1 << (2 * ARITH_SHIFT)) / (s_unit - err)); result = (tx_time * estimated_retx) >> (2 * ARITH_SHIFT) ; diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c index 5d786720d93..3fa7ab28506 100644 --- a/net/mac80211/rate.c +++ b/net/mac80211/rate.c @@ -199,48 +199,44 @@ static void rate_control_release(struct kref *kref) } void rate_control_get_rate(struct ieee80211_sub_if_data *sdata, - struct ieee80211_supported_band *sband, - struct sta_info *sta, struct sk_buff *skb, - struct rate_selection *sel) + struct sta_info *sta, + struct ieee80211_tx_rate_control *txrc) { struct rate_control_ref *ref = sdata->local->rate_ctrl; void *priv_sta = NULL; struct ieee80211_sta *ista = NULL; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(txrc->skb); int i; - sel->rate_idx = -1; - sel->nonerp_idx = -1; - sel->probe_idx = -1; - sel->max_rate_idx = sdata->max_ratectrl_rateidx; - if (sta) { ista = &sta->sta; priv_sta = sta->rate_ctrl_priv; } + for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { + info->control.rates[i].idx = -1; + info->control.rates[i].flags = 0; + info->control.rates[i].count = 1; + } + if (sta && sdata->force_unicast_rateidx > -1) - sel->rate_idx = sdata->force_unicast_rateidx; + info->control.rates[0].idx = sdata->force_unicast_rateidx; else - ref->ops->get_rate(ref->priv, sband, ista, priv_sta, skb, sel); - - if (sdata->max_ratectrl_rateidx > -1 && - sel->rate_idx > sdata->max_ratectrl_rateidx) - sel->rate_idx = sdata->max_ratectrl_rateidx; - - BUG_ON(sel->rate_idx < 0); - - /* Select a non-ERP backup rate. */ - if (sel->nonerp_idx < 0) { - for (i = 0; i < sband->n_bitrates; i++) { - struct ieee80211_rate *rate = &sband->bitrates[i]; - if (sband->bitrates[sel->rate_idx].bitrate < rate->bitrate) - break; - - if (rate_supported(ista, sband->band, i) && - !(rate->flags & IEEE80211_RATE_ERP_G)) - sel->nonerp_idx = i; - } + ref->ops->get_rate(ref->priv, ista, priv_sta, txrc); + + /* + * try to enforce the maximum rate the user wanted + */ + if (sdata->max_ratectrl_rateidx > -1) + for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { + if (info->control.rates[i].flags & IEEE80211_TX_RC_MCS) + continue; + info->control.rates[i].idx = + min_t(s8, info->control.rates[i].idx, + sdata->max_ratectrl_rateidx); } + + BUG_ON(info->control.rates[0].idx < 0); } struct rate_control_ref *rate_control_get(struct rate_control_ref *ref) diff --git a/net/mac80211/rate.h b/net/mac80211/rate.h index d0092f847f8..7c25edf9ac5 100644 --- a/net/mac80211/rate.h +++ b/net/mac80211/rate.h @@ -31,9 +31,8 @@ struct rate_control_ref { struct rate_control_ref *rate_control_alloc(const char *name, struct ieee80211_local *local); void rate_control_get_rate(struct ieee80211_sub_if_data *sdata, - struct ieee80211_supported_band *sband, - struct sta_info *sta, struct sk_buff *skb, - struct rate_selection *sel); + struct sta_info *sta, + struct ieee80211_tx_rate_control *txrc); struct rate_control_ref *rate_control_get(struct rate_control_ref *ref); void rate_control_put(struct rate_control_ref *ref); diff --git a/net/mac80211/rc80211_minstrel.c b/net/mac80211/rc80211_minstrel.c index f6d69dab07a..759ddd8bf0f 100644 --- a/net/mac80211/rc80211_minstrel.c +++ b/net/mac80211/rc80211_minstrel.c @@ -169,30 +169,20 @@ minstrel_tx_status(void *priv, struct ieee80211_supported_band *sband, { struct minstrel_sta_info *mi = priv_sta; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - struct ieee80211_tx_altrate *ar = info->status.retries; - struct minstrel_priv *mp = priv; - int i, ndx, tries; - int success = 0; + struct ieee80211_tx_rate *ar = info->status.rates; + int i, ndx; + int success; - if (!info->status.excessive_retries) - success = 1; + success = !!(info->flags & IEEE80211_TX_STAT_ACK); - if (!mp->has_mrr || (ar[0].rate_idx < 0)) { - ndx = rix_to_ndx(mi, info->tx_rate_idx); - tries = info->status.retry_count + 1; - mi->r[ndx].success += success; - mi->r[ndx].attempts += tries; - return; - } - - for (i = 0; i < 4; i++) { - if (ar[i].rate_idx < 0) + for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { + if (ar[i].idx < 0) break; - ndx = rix_to_ndx(mi, ar[i].rate_idx); - mi->r[ndx].attempts += ar[i].limit + 1; + ndx = rix_to_ndx(mi, ar[i].idx); + mi->r[ndx].attempts += ar[i].count; - if ((i != 3) && (ar[i + 1].rate_idx < 0)) + if ((i != IEEE80211_TX_MAX_RATES - 1) && (ar[i + 1].idx < 0)) mi->r[ndx].success += success; } @@ -210,9 +200,9 @@ minstrel_get_retry_count(struct minstrel_rate *mr, { unsigned int retry = mr->adjusted_retry_count; - if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) + if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) retry = max(2U, min(mr->retry_count_rtscts, retry)); - else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) + else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) retry = max(2U, min(mr->retry_count_cts, retry)); return retry; } @@ -234,14 +224,15 @@ minstrel_get_next_sample(struct minstrel_sta_info *mi) } void -minstrel_get_rate(void *priv, struct ieee80211_supported_band *sband, - struct ieee80211_sta *sta, void *priv_sta, - struct sk_buff *skb, struct rate_selection *sel) +minstrel_get_rate(void *priv, struct ieee80211_sta *sta, + void *priv_sta, struct ieee80211_tx_rate_control *txrc) { + struct sk_buff *skb = txrc->skb; + struct ieee80211_supported_band *sband = txrc->sband; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); struct minstrel_sta_info *mi = priv_sta; struct minstrel_priv *mp = priv; - struct ieee80211_tx_altrate *ar = info->control.retries; + struct ieee80211_tx_rate *ar = info->control.rates; unsigned int ndx, sample_ndx = 0; bool mrr; bool sample_slower = false; @@ -251,16 +242,12 @@ minstrel_get_rate(void *priv, struct ieee80211_supported_band *sband, int sample_rate; if (!sta || !mi || use_low_rate(skb)) { - sel->rate_idx = rate_lowest_index(sband, sta); + ar[0].idx = rate_lowest_index(sband, sta); + ar[0].count = mp->max_retry; return; } - mrr = mp->has_mrr; - - /* mac80211 does not allow mrr for RTS/CTS */ - if ((info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) || - (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)) - mrr = false; + mrr = mp->has_mrr && !txrc->rts && !txrc->bss_conf->use_cts_prot; if (time_after(jiffies, mi->stats_update + (mp->update_interval * HZ) / 1000)) @@ -315,13 +302,12 @@ minstrel_get_rate(void *priv, struct ieee80211_supported_band *sband, mi->sample_deferred++; } } - sel->rate_idx = mi->r[ndx].rix; - info->control.retry_limit = minstrel_get_retry_count(&mi->r[ndx], info); + ar[0].idx = mi->r[ndx].rix; + ar[0].count = minstrel_get_retry_count(&mi->r[ndx], info); if (!mrr) { - ar[0].rate_idx = mi->lowest_rix; - ar[0].limit = mp->max_retry; - ar[1].rate_idx = -1; + ar[1].idx = mi->lowest_rix; + ar[1].count = mp->max_retry; return; } @@ -336,9 +322,9 @@ minstrel_get_rate(void *priv, struct ieee80211_supported_band *sband, } mrr_ndx[1] = mi->max_prob_rate; mrr_ndx[2] = 0; - for (i = 0; i < 3; i++) { - ar[i].rate_idx = mi->r[mrr_ndx[i]].rix; - ar[i].limit = mi->r[mrr_ndx[i]].adjusted_retry_count; + for (i = 1; i < 4; i++) { + ar[i].idx = mi->r[mrr_ndx[i - 1]].rix; + ar[i].count = mi->r[mrr_ndx[i - 1]].adjusted_retry_count; } } @@ -532,13 +518,13 @@ minstrel_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir) /* maximum time that the hw is allowed to stay in one MRR segment */ mp->segment_size = 6000; - if (hw->max_altrate_tries > 0) - mp->max_retry = hw->max_altrate_tries; + if (hw->max_rate_tries > 0) + mp->max_retry = hw->max_rate_tries; else /* safe default, does not necessarily have to match hw properties */ mp->max_retry = 7; - if (hw->max_altrates >= 3) + if (hw->max_rates >= 4) mp->has_mrr = true; mp->hw = hw; diff --git a/net/mac80211/rc80211_pid.h b/net/mac80211/rc80211_pid.h index ce099ea1d5d..1a873f00691 100644 --- a/net/mac80211/rc80211_pid.h +++ b/net/mac80211/rc80211_pid.h @@ -61,6 +61,7 @@ enum rc_pid_event_type { union rc_pid_event_data { /* RC_PID_EVENT_TX_STATUS */ struct { + u32 flags; struct ieee80211_tx_info tx_status; }; /* RC_PID_EVENT_TYPE_RATE_CHANGE */ diff --git a/net/mac80211/rc80211_pid_algo.c b/net/mac80211/rc80211_pid_algo.c index 86eb374e3b8..92caecfcee7 100644 --- a/net/mac80211/rc80211_pid_algo.c +++ b/net/mac80211/rc80211_pid_algo.c @@ -241,7 +241,7 @@ static void rate_control_pid_tx_status(void *priv, struct ieee80211_supported_ba /* Ignore all frames that were sent with a different rate than the rate * we currently advise mac80211 to use. */ - if (info->tx_rate_idx != spinfo->txrate_idx) + if (info->status.rates[0].idx != spinfo->txrate_idx) return; spinfo->tx_num_xmit++; @@ -253,10 +253,10 @@ static void rate_control_pid_tx_status(void *priv, struct ieee80211_supported_ba /* We count frames that totally failed to be transmitted as two bad * frames, those that made it out but had some retries as one good and * one bad frame. */ - if (info->status.excessive_retries) { + if (!(info->flags & IEEE80211_TX_STAT_ACK)) { spinfo->tx_num_failed += 2; spinfo->tx_num_xmit++; - } else if (info->status.retry_count) { + } else if (info->status.rates[0].count) { spinfo->tx_num_failed++; spinfo->tx_num_xmit++; } @@ -270,23 +270,32 @@ static void rate_control_pid_tx_status(void *priv, struct ieee80211_supported_ba } static void -rate_control_pid_get_rate(void *priv, struct ieee80211_supported_band *sband, - struct ieee80211_sta *sta, void *priv_sta, - struct sk_buff *skb, - struct rate_selection *sel) +rate_control_pid_get_rate(void *priv, struct ieee80211_sta *sta, + void *priv_sta, + struct ieee80211_tx_rate_control *txrc) { + struct sk_buff *skb = txrc->skb; + struct ieee80211_supported_band *sband = txrc->sband; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); struct rc_pid_sta_info *spinfo = priv_sta; int rateidx; u16 fc; + if (txrc->rts) + info->control.rates[0].count = + txrc->hw->conf.long_frame_max_tx_count; + else + info->control.rates[0].count = + txrc->hw->conf.short_frame_max_tx_count; + /* Send management frames and broadcast/multicast data using lowest * rate. */ fc = le16_to_cpu(hdr->frame_control); if (!sta || !spinfo || (fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA || is_multicast_ether_addr(hdr->addr1)) { - sel->rate_idx = rate_lowest_index(sband, sta); + info->control.rates[0].idx = rate_lowest_index(sband, sta); return; } @@ -295,7 +304,7 @@ rate_control_pid_get_rate(void *priv, struct ieee80211_supported_band *sband, if (rateidx >= sband->n_bitrates) rateidx = sband->n_bitrates - 1; - sel->rate_idx = rateidx; + info->control.rates[0].idx = rateidx; #ifdef CONFIG_MAC80211_DEBUGFS rate_control_pid_event_tx_rate(&spinfo->events, diff --git a/net/mac80211/rc80211_pid_debugfs.c b/net/mac80211/rc80211_pid_debugfs.c index 8121d3bc683..a08a9b53034 100644 --- a/net/mac80211/rc80211_pid_debugfs.c +++ b/net/mac80211/rc80211_pid_debugfs.c @@ -43,6 +43,7 @@ void rate_control_pid_event_tx_status(struct rc_pid_event_buffer *buf, { union rc_pid_event_data evd; + evd.flags = stat->flags; memcpy(&evd.tx_status, stat, sizeof(struct ieee80211_tx_info)); rate_control_pid_event(buf, RC_PID_EVENT_TYPE_TX_STATUS, &evd); } @@ -167,8 +168,8 @@ static ssize_t rate_control_pid_events_read(struct file *file, char __user *buf, switch (ev->type) { case RC_PID_EVENT_TYPE_TX_STATUS: p += snprintf(pb + p, length - p, "tx_status %u %u", - ev->data.tx_status.status.excessive_retries, - ev->data.tx_status.status.retry_count); + !(ev->data.flags & IEEE80211_TX_STAT_ACK), + ev->data.tx_status.status.rates[0].idx); break; case RC_PID_EVENT_TYPE_RATE_CHANGE: p += snprintf(pb + p, length - p, "rate_change %d %d", diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index 168a39a298b..4ac372aa75c 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -196,7 +196,7 @@ struct sta_ampdu_mlme { * @tx_packets: number of RX/TX MSDUs * @tx_bytes: TBD * @tx_fragments: number of transmitted MPDUs - * @last_txrate_idx: Index of the last used transmit rate + * @last_txrate: description of the last used transmit rate * @tid_seq: TBD * @ampdu_mlme: TBD * @timer_to_tid: identity mapping to ID timers @@ -267,7 +267,7 @@ struct sta_info { unsigned long tx_packets; unsigned long tx_bytes; unsigned long tx_fragments; - unsigned int last_txrate_idx; + struct ieee80211_tx_rate last_tx_rate; u16 tid_seq[IEEE80211_QOS_CTL_TID_MASK + 1]; /* diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 6f3e4be9763..21951bac1ef 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -46,13 +46,20 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx, int group_addr, struct ieee80211_local *local = tx->local; struct ieee80211_supported_band *sband; struct ieee80211_hdr *hdr; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb); + + /* assume HW handles this */ + if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS) + return 0; + + /* uh huh? */ + if (WARN_ON_ONCE(info->control.rates[0].idx < 0)) + return 0; sband = local->hw.wiphy->bands[tx->channel->band]; - txrate = &sband->bitrates[tx->rate_idx]; + txrate = &sband->bitrates[info->control.rates[0].idx]; - erp = 0; - if (tx->sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) - erp = txrate->flags & IEEE80211_RATE_ERP_G; + erp = txrate->flags & IEEE80211_RATE_ERP_G; /* * data and mgmt (except PS Poll): @@ -437,140 +444,154 @@ ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx) static ieee80211_tx_result debug_noinline ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx) { - struct rate_selection rsel; - struct ieee80211_supported_band *sband; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb); + struct ieee80211_hdr *hdr = (void *)tx->skb->data; + struct ieee80211_supported_band *sband; + struct ieee80211_rate *rate; + int i, len; + bool inval = false, rts = false, short_preamble = false; + struct ieee80211_tx_rate_control txrc; - sband = tx->local->hw.wiphy->bands[tx->channel->band]; + memset(&txrc, 0, sizeof(txrc)); - if (likely(tx->rate_idx < 0)) { - rate_control_get_rate(tx->sdata, sband, tx->sta, - tx->skb, &rsel); - if (tx->sta) - tx->sta->last_txrate_idx = rsel.rate_idx; - tx->rate_idx = rsel.rate_idx; - if (unlikely(rsel.probe_idx >= 0)) { - info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE; - tx->flags |= IEEE80211_TX_PROBE_LAST_FRAG; - info->control.retries[0].rate_idx = tx->rate_idx; - info->control.retries[0].limit = tx->local->hw.max_altrate_tries; - tx->rate_idx = rsel.probe_idx; - } else if (info->control.retries[0].limit == 0) - info->control.retries[0].rate_idx = -1; - - if (unlikely(tx->rate_idx < 0)) - return TX_DROP; - } else - info->control.retries[0].rate_idx = -1; + sband = tx->local->hw.wiphy->bands[tx->channel->band]; - if (tx->sdata->vif.bss_conf.use_cts_prot && - (tx->flags & IEEE80211_TX_FRAGMENTED) && (rsel.nonerp_idx >= 0)) { - tx->last_frag_rate_idx = tx->rate_idx; - if (rsel.probe_idx >= 0) - tx->flags &= ~IEEE80211_TX_PROBE_LAST_FRAG; - else - tx->flags |= IEEE80211_TX_PROBE_LAST_FRAG; - tx->rate_idx = rsel.nonerp_idx; - info->tx_rate_idx = rsel.nonerp_idx; - info->flags &= ~IEEE80211_TX_CTL_RATE_CTRL_PROBE; - } else { - tx->last_frag_rate_idx = tx->rate_idx; - info->tx_rate_idx = tx->rate_idx; + len = min_t(int, tx->skb->len + FCS_LEN, + tx->local->fragmentation_threshold); + + /* set up the tx rate control struct we give the RC algo */ + txrc.hw = local_to_hw(tx->local); + txrc.sband = sband; + txrc.bss_conf = &tx->sdata->vif.bss_conf; + txrc.skb = tx->skb; + txrc.reported_rate.idx = -1; + txrc.max_rate_idx = tx->sdata->max_ratectrl_rateidx; + + /* set up RTS protection if desired */ + if (tx->local->rts_threshold < IEEE80211_MAX_RTS_THRESHOLD && + len > tx->local->rts_threshold) { + txrc.rts = rts = true; } - info->tx_rate_idx = tx->rate_idx; - return TX_CONTINUE; -} + /* + * Use short preamble if the BSS can handle it, but not for + * management frames unless we know the receiver can handle + * that -- the management frame might be to a station that + * just wants a probe response. + */ + if (tx->sdata->vif.bss_conf.use_short_preamble && + (ieee80211_is_data(hdr->frame_control) || + (tx->sta && test_sta_flags(tx->sta, WLAN_STA_SHORT_PREAMBLE)))) + txrc.short_preamble = short_preamble = true; -static ieee80211_tx_result debug_noinline -ieee80211_tx_h_misc(struct ieee80211_tx_data *tx) -{ - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data; - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb); - struct ieee80211_supported_band *sband; - sband = tx->local->hw.wiphy->bands[tx->channel->band]; + rate_control_get_rate(tx->sdata, tx->sta, &txrc); + + if (unlikely(info->control.rates[0].idx < 0)) + return TX_DROP; + + if (txrc.reported_rate.idx < 0) + txrc.reported_rate = info->control.rates[0]; if (tx->sta) - info->control.sta = &tx->sta->sta; + tx->sta->last_tx_rate = txrc.reported_rate; - if (!info->control.retry_limit) { - if (!is_multicast_ether_addr(hdr->addr1)) { - int len = min_t(int, tx->skb->len + FCS_LEN, - tx->local->fragmentation_threshold); - if (len > tx->local->rts_threshold - && tx->local->rts_threshold < - IEEE80211_MAX_RTS_THRESHOLD) { - info->flags |= IEEE80211_TX_CTL_USE_RTS_CTS; - info->flags |= - IEEE80211_TX_CTL_LONG_RETRY_LIMIT; - info->control.retry_limit = - tx->local->hw.conf.long_frame_max_tx_count - 1; - } else { - info->control.retry_limit = - tx->local->hw.conf.short_frame_max_tx_count - 1; - } - } else { - info->control.retry_limit = 1; - } - } + if (unlikely(!info->control.rates[0].count)) + info->control.rates[0].count = 1; - if (tx->flags & IEEE80211_TX_FRAGMENTED) { - /* Do not use multiple retry rates when sending fragmented - * frames. - * TODO: The last fragment could still use multiple retry - * rates. */ - info->control.retries[0].rate_idx = -1; + if (is_multicast_ether_addr(hdr->addr1)) { + /* + * XXX: verify the rate is in the basic rateset + */ + return TX_CONTINUE; } - /* Use CTS protection for unicast frames sent using extended rates if - * there are associated non-ERP stations and RTS/CTS is not configured - * for the frame. */ - if ((tx->sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) && - (sband->bitrates[tx->rate_idx].flags & IEEE80211_RATE_ERP_G) && - (tx->flags & IEEE80211_TX_UNICAST) && - tx->sdata->vif.bss_conf.use_cts_prot && - !(info->flags & IEEE80211_TX_CTL_USE_RTS_CTS)) - info->flags |= IEEE80211_TX_CTL_USE_CTS_PROTECT; - - /* Transmit data frames using short preambles if the driver supports - * short preambles at the selected rate and short preambles are - * available on the network at the current point in time. */ - if (ieee80211_is_data(hdr->frame_control) && - (sband->bitrates[tx->rate_idx].flags & IEEE80211_RATE_SHORT_PREAMBLE) && - tx->sdata->vif.bss_conf.use_short_preamble && - (!tx->sta || test_sta_flags(tx->sta, WLAN_STA_SHORT_PREAMBLE))) { - info->flags |= IEEE80211_TX_CTL_SHORT_PREAMBLE; + /* + * set up the RTS/CTS rate as the fastest basic rate + * that is not faster than the data rate + * + * XXX: Should this check all retry rates? + */ + if (!(info->control.rates[0].flags & IEEE80211_TX_RC_MCS)) { + s8 baserate = 0; + + rate = &sband->bitrates[info->control.rates[0].idx]; + + for (i = 0; i < sband->n_bitrates; i++) { + /* must be a basic rate */ + if (!(tx->sdata->vif.bss_conf.basic_rates & BIT(i))) + continue; + /* must not be faster than the data rate */ + if (sband->bitrates[i].bitrate > rate->bitrate) + continue; + /* maximum */ + if (sband->bitrates[baserate].bitrate < + sband->bitrates[i].bitrate) + baserate = i; + } + + info->control.rts_cts_rate_idx = baserate; } - if ((info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) || - (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)) { - struct ieee80211_rate *rate; - s8 baserate = -1; - int idx; + for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { + /* + * make sure there's no valid rate following + * an invalid one, just in case drivers don't + * take the API seriously to stop at -1. + */ + if (inval) { + info->control.rates[i].idx = -1; + continue; + } + if (info->control.rates[i].idx < 0) { + inval = true; + continue; + } - /* Do not use multiple retry rates when using RTS/CTS */ - info->control.retries[0].rate_idx = -1; + /* + * For now assume MCS is already set up correctly, this + * needs to be fixed. + */ + if (info->control.rates[i].flags & IEEE80211_TX_RC_MCS) { + WARN_ON(info->control.rates[i].idx > 76); + continue; + } - /* Use min(data rate, max base rate) as CTS/RTS rate */ - rate = &sband->bitrates[tx->rate_idx]; + /* set up RTS protection if desired */ + if (rts) + info->control.rates[i].flags |= + IEEE80211_TX_RC_USE_RTS_CTS; - for (idx = 0; idx < sband->n_bitrates; idx++) { - if (sband->bitrates[idx].bitrate > rate->bitrate) - continue; - if (tx->sdata->vif.bss_conf.basic_rates & BIT(idx) && - (baserate < 0 || - (sband->bitrates[baserate].bitrate - < sband->bitrates[idx].bitrate))) - baserate = idx; + /* RC is busted */ + if (WARN_ON(info->control.rates[i].idx >= + sband->n_bitrates)) { + info->control.rates[i].idx = -1; + continue; } - if (baserate >= 0) - info->control.rts_cts_rate_idx = baserate; - else - info->control.rts_cts_rate_idx = 0; + rate = &sband->bitrates[info->control.rates[i].idx]; + + /* set up short preamble */ + if (short_preamble && + rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) + info->control.rates[i].flags |= + IEEE80211_TX_RC_USE_SHORT_PREAMBLE; + + /* set up G protection */ + if (!rts && tx->sdata->vif.bss_conf.use_cts_prot && + rate->flags & IEEE80211_RATE_ERP_G) + info->control.rates[i].flags |= + IEEE80211_TX_RC_USE_CTS_PROTECT; } + return TX_CONTINUE; +} + +static ieee80211_tx_result debug_noinline +ieee80211_tx_h_misc(struct ieee80211_tx_data *tx) +{ + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb); + if (tx->sta) info->control.sta = &tx->sta->sta; @@ -678,6 +699,7 @@ ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx) left = payload_len - per_fragm; for (i = 0; i < num_fragm - 1; i++) { struct ieee80211_hdr *fhdr; + struct ieee80211_tx_info *info; size_t copylen; if (left <= 0) @@ -692,20 +714,45 @@ ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx) IEEE80211_ENCRYPT_TAILROOM); if (!frag) goto fail; + /* Make sure that all fragments use the same priority so * that they end up using the same TX queue */ frag->priority = first->priority; + skb_reserve(frag, tx->local->tx_headroom + IEEE80211_ENCRYPT_HEADROOM); + + /* copy TX information */ + info = IEEE80211_SKB_CB(frag); + memcpy(info, first->cb, sizeof(frag->cb)); + + /* copy/fill in 802.11 header */ fhdr = (struct ieee80211_hdr *) skb_put(frag, hdrlen); memcpy(fhdr, first->data, hdrlen); - if (i == num_fragm - 2) - fhdr->frame_control &= cpu_to_le16(~IEEE80211_FCTL_MOREFRAGS); fhdr->seq_ctrl = cpu_to_le16(seq | ((i + 1) & IEEE80211_SCTL_FRAG)); + + if (i == num_fragm - 2) { + /* clear MOREFRAGS bit for the last fragment */ + fhdr->frame_control &= cpu_to_le16(~IEEE80211_FCTL_MOREFRAGS); + } else { + /* + * No multi-rate retries for fragmented frames, that + * would completely throw off the NAV at other STAs. + */ + info->control.rates[1].idx = -1; + info->control.rates[2].idx = -1; + info->control.rates[3].idx = -1; + info->control.rates[4].idx = -1; + BUILD_BUG_ON(IEEE80211_TX_MAX_RATES != 5); + info->flags &= ~IEEE80211_TX_CTL_RATE_CTRL_PROBE; + } + + /* copy data */ copylen = left > per_fragm ? per_fragm : left; memcpy(skb_put(frag, copylen), pos, copylen); - memcpy(frag->cb, first->cb, sizeof(frag->cb)); + skb_copy_queue_mapping(frag, first); + frag->do_not_encrypt = first->do_not_encrypt; pos += copylen; @@ -765,12 +812,10 @@ ieee80211_tx_h_calculate_duration(struct ieee80211_tx_data *tx) tx->extra_frag[0]->len); for (i = 0; i < tx->num_extra_frag; i++) { - if (i + 1 < tx->num_extra_frag) { + if (i + 1 < tx->num_extra_frag) next_len = tx->extra_frag[i + 1]->len; - } else { + else next_len = 0; - tx->rate_idx = tx->last_frag_rate_idx; - } hdr = (struct ieee80211_hdr *)tx->extra_frag[i]->data; hdr->duration_id = ieee80211_duration(tx, 0, next_len); @@ -823,7 +868,6 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx, (struct ieee80211_radiotap_header *) skb->data; struct ieee80211_supported_band *sband; int ret = ieee80211_radiotap_iterator_init(&iterator, rthdr, skb->len); - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); sband = tx->local->hw.wiphy->bands[tx->channel->band]; @@ -837,8 +881,6 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx, */ while (!ret) { - int i, target_rate; - ret = ieee80211_radiotap_iterator_next(&iterator); if (ret) @@ -852,38 +894,6 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx, * get_unaligned((type *)iterator.this_arg) to dereference * iterator.this_arg for type "type" safely on all arches. */ - case IEEE80211_RADIOTAP_RATE: - /* - * radiotap rate u8 is in 500kbps units eg, 0x02=1Mbps - * ieee80211 rate int is in 100kbps units eg, 0x0a=1Mbps - */ - target_rate = (*iterator.this_arg) * 5; - for (i = 0; i < sband->n_bitrates; i++) { - struct ieee80211_rate *r; - - r = &sband->bitrates[i]; - - if (r->bitrate == target_rate) { - tx->rate_idx = i; - break; - } - } - break; - - case IEEE80211_RADIOTAP_ANTENNA: - /* - * radiotap uses 0 for 1st ant, mac80211 is 1 for - * 1st ant - */ - info->antenna_sel_tx = (*iterator.this_arg) + 1; - break; - -#if 0 - case IEEE80211_RADIOTAP_DBM_TX_POWER: - control->power_level = *iterator.this_arg; - break; -#endif - case IEEE80211_RADIOTAP_FLAGS: if (*iterator.this_arg & IEEE80211_RADIOTAP_F_FCS) { /* @@ -949,8 +959,6 @@ __ieee80211_tx_prepare(struct ieee80211_tx_data *tx, tx->local = local; tx->sdata = IEEE80211_DEV_TO_SUB_IF(dev); tx->channel = local->hw.conf.channel; - tx->rate_idx = -1; - tx->last_frag_rate_idx = -1; /* * Set this flag (used below to indicate "automatic fragmentation"), * it will be cleared/left by radiotap as desired. @@ -1051,23 +1059,11 @@ static int __ieee80211_tx(struct ieee80211_local *local, struct sk_buff *skb, if (!tx->extra_frag[i]) continue; info = IEEE80211_SKB_CB(tx->extra_frag[i]); - info->flags &= ~(IEEE80211_TX_CTL_USE_RTS_CTS | - IEEE80211_TX_CTL_USE_CTS_PROTECT | - IEEE80211_TX_CTL_CLEAR_PS_FILT | + info->flags &= ~(IEEE80211_TX_CTL_CLEAR_PS_FILT | IEEE80211_TX_CTL_FIRST_FRAGMENT); if (netif_subqueue_stopped(local->mdev, tx->extra_frag[i])) return IEEE80211_TX_FRAG_AGAIN; - if (i == tx->num_extra_frag) { - info->tx_rate_idx = tx->last_frag_rate_idx; - - if (tx->flags & IEEE80211_TX_PROBE_LAST_FRAG) - info->flags |= - IEEE80211_TX_CTL_RATE_CTRL_PROBE; - else - info->flags &= - ~IEEE80211_TX_CTL_RATE_CTRL_PROBE; - } ret = local->ops->tx(local_to_hw(local), tx->extra_frag[i]); @@ -1204,9 +1200,6 @@ retry: store->skb = skb; store->extra_frag = tx.extra_frag; store->num_extra_frag = tx.num_extra_frag; - store->last_frag_rate_idx = tx.last_frag_rate_idx; - store->last_frag_rate_ctrl_probe = - !!(tx.flags & IEEE80211_TX_PROBE_LAST_FRAG); } out: rcu_read_unlock(); @@ -1763,10 +1756,7 @@ void ieee80211_tx_pending(unsigned long data) store = &local->pending_packet[i]; tx.extra_frag = store->extra_frag; tx.num_extra_frag = store->num_extra_frag; - tx.last_frag_rate_idx = store->last_frag_rate_idx; tx.flags = 0; - if (store->last_frag_rate_ctrl_probe) - tx.flags |= IEEE80211_TX_PROBE_LAST_FRAG; ret = __ieee80211_tx(local, store->skb, &tx); if (ret) { if (ret == IEEE80211_TX_FRAG_AGAIN) @@ -1854,7 +1844,6 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw, struct ieee80211_sub_if_data *sdata = NULL; struct ieee80211_if_ap *ap = NULL; struct ieee80211_if_sta *ifsta = NULL; - struct rate_selection rsel; struct beacon_data *beacon; struct ieee80211_supported_band *sband; enum ieee80211_band band = local->hw.conf.channel->band; @@ -1958,32 +1947,23 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw, skb->do_not_encrypt = 1; info->band = band; - rate_control_get_rate(sdata, sband, NULL, skb, &rsel); - - if (unlikely(rsel.rate_idx < 0)) { - if (net_ratelimit()) { - printk(KERN_DEBUG "%s: ieee80211_beacon_get: " - "no rate found\n", - wiphy_name(local->hw.wiphy)); - } - dev_kfree_skb_any(skb); - skb = NULL; - goto out; - } + /* + * XXX: For now, always use the lowest rate + */ + info->control.rates[0].idx = 0; + info->control.rates[0].count = 1; + info->control.rates[1].idx = -1; + info->control.rates[2].idx = -1; + info->control.rates[3].idx = -1; + info->control.rates[4].idx = -1; + BUILD_BUG_ON(IEEE80211_TX_MAX_RATES != 5); info->control.vif = vif; - info->tx_rate_idx = rsel.rate_idx; info->flags |= IEEE80211_TX_CTL_NO_ACK; info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT; info->flags |= IEEE80211_TX_CTL_ASSIGN_SEQ; - if (sdata->vif.bss_conf.use_short_preamble && - sband->bitrates[rsel.rate_idx].flags & IEEE80211_RATE_SHORT_PREAMBLE) - info->flags |= IEEE80211_TX_CTL_SHORT_PREAMBLE; - - info->control.retry_limit = 1; - -out: + out: rcu_read_unlock(); return skb; } diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c index f7e442f80a1..31d2e74a1bc 100644 --- a/net/mac80211/wext.c +++ b/net/mac80211/wext.c @@ -636,8 +636,8 @@ static int ieee80211_ioctl_giwrate(struct net_device *dev, sta = sta_info_get(local, sdata->u.sta.bssid); - if (sta && sta->last_txrate_idx < sband->n_bitrates) - rate->value = sband->bitrates[sta->last_txrate_idx].bitrate; + if (sta && !(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) + rate->value = sband->bitrates[sta->last_tx_rate.idx].bitrate; else rate->value = 0; -- cgit v1.2.3-70-g09d2 From d9d2925713d92bbe33b2edff3d7de1ce5646ab54 Mon Sep 17 00:00:00 2001 From: "Luis R. Rodriguez" Date: Wed, 22 Oct 2008 13:13:53 -0700 Subject: mac80211: make use of regulatory tx power settings on change of tx power We do not know what max power to allow until a device is targeting a channel, therefore only allow changing tx power if a channel is defined. Also make use of the channel's max power setting as defined by regulatory rules before allowing the user to use the requested power setting. If the user asked us to figure it out we use the max allowed by regulatory. Signed-off-by: Luis R. Rodriguez Signed-off-by: John W. Linville --- net/mac80211/wext.c | 18 ++++++------------ 1 file changed, 6 insertions(+), 12 deletions(-) (limited to 'net/mac80211/wext.c') diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c index 31d2e74a1bc..231cab57351 100644 --- a/net/mac80211/wext.c +++ b/net/mac80211/wext.c @@ -656,6 +656,7 @@ static int ieee80211_ioctl_siwtxpower(struct net_device *dev, union iwreq_data *data, char *extra) { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); + struct ieee80211_channel* chan = local->hw.conf.channel; u32 reconf_flags = 0; int new_power_level; @@ -663,20 +664,13 @@ static int ieee80211_ioctl_siwtxpower(struct net_device *dev, return -EINVAL; if (data->txpower.flags & IW_TXPOW_RANGE) return -EINVAL; + if (!chan) + return -EINVAL; - if (data->txpower.fixed) { - new_power_level = data->txpower.value; - } else { - /* - * Automatic power level. Use maximum power for the current - * channel. Should be part of rate control. - */ - struct ieee80211_channel* chan = local->hw.conf.channel; - if (!chan) - return -EINVAL; - + if (data->txpower.fixed) + new_power_level = min(data->txpower.value, chan->max_power); + else /* Automatic power level setting */ new_power_level = chan->max_power; - } if (local->hw.conf.power_level != new_power_level) { local->hw.conf.power_level = new_power_level; -- cgit v1.2.3-70-g09d2 From 41bb73eeac5ff5fb217257ba33b654747b3abf11 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 29 Oct 2008 01:09:37 +0100 Subject: mac80211: remove SSID driver code Remove the SSID from the driver API since now there is no driver that requires knowing the SSID and I think it's unlikely that any hardware design that does require the SSID will play well with mac80211. This also removes support for setting the SSID in master mode which will require a patch to hostapd to not try. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-agn.c | 7 ------- drivers/net/wireless/iwlwifi/iwl3945-base.c | 7 ------- include/net/mac80211.h | 11 +---------- net/mac80211/ieee80211_i.h | 3 --- net/mac80211/main.c | 15 +++------------ net/mac80211/mlme.c | 14 -------------- net/mac80211/wext.c | 16 ---------------- 7 files changed, 4 insertions(+), 69 deletions(-) (limited to 'net/mac80211/wext.c') diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index ce3141f07f3..ad186e134de 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -2957,13 +2957,6 @@ static int iwl4965_mac_config_interface(struct ieee80211_hw *hw, return rc; } - if ((priv->iw_mode == NL80211_IFTYPE_AP) && - (!conf->ssid_len)) { - IWL_DEBUG_MAC80211 - ("Leaving in AP mode because HostAPD is not ready.\n"); - return 0; - } - if (!iwl_is_alive(priv)) return -EAGAIN; diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c index 0c2d778a9ff..47881be9ba4 100644 --- a/drivers/net/wireless/iwlwifi/iwl3945-base.c +++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c @@ -6743,13 +6743,6 @@ static int iwl3945_mac_config_interface(struct ieee80211_hw *hw, /* XXX: this MUST use conf->mac_addr */ - if ((priv->iw_mode == NL80211_IFTYPE_AP) && - (!conf->ssid_len)) { - IWL_DEBUG_MAC80211 - ("Leaving in AP mode because HostAPD is not ready.\n"); - return 0; - } - if (!iwl3945_is_alive(priv)) return -EAGAIN; diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 0b983bed382..af2ec6f9beb 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -616,14 +616,12 @@ struct ieee80211_if_init_conf { * enum ieee80211_if_conf_change - interface config change flags * * @IEEE80211_IFCC_BSSID: The BSSID changed. - * @IEEE80211_IFCC_SSID: The SSID changed. * @IEEE80211_IFCC_BEACON: The beacon for this interface changed * (currently AP and MESH only), use ieee80211_beacon_get(). */ enum ieee80211_if_conf_change { IEEE80211_IFCC_BSSID = BIT(0), - IEEE80211_IFCC_SSID = BIT(1), - IEEE80211_IFCC_BEACON = BIT(2), + IEEE80211_IFCC_BEACON = BIT(1), }; /** @@ -631,11 +629,6 @@ enum ieee80211_if_conf_change { * * @changed: parameters that have changed, see &enum ieee80211_if_conf_change. * @bssid: BSSID of the network we are associated to/creating. - * @ssid: used (together with @ssid_len) by drivers for hardware that - * generate beacons independently. The pointer is valid only during the - * config_interface() call, so copy the value somewhere if you need - * it. - * @ssid_len: length of the @ssid field. * * This structure is passed to the config_interface() callback of * &struct ieee80211_hw. @@ -643,8 +636,6 @@ enum ieee80211_if_conf_change { struct ieee80211_if_conf { u32 changed; u8 *bssid; - u8 *ssid; - size_t ssid_len; }; /** diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 2c91108e390..155a2041001 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -212,9 +212,6 @@ struct ieee80211_if_ap { struct list_head vlans; - u8 ssid[IEEE80211_MAX_SSID_LEN]; - size_t ssid_len; - /* yes, this looks ugly, but guarantees that we can later use * bitmap_empty :) * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */ diff --git a/net/mac80211/main.c b/net/mac80211/main.c index fa0cc7a1e6b..d631dc96c32 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -171,19 +171,13 @@ int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed) conf.changed = changed; if (sdata->vif.type == NL80211_IFTYPE_STATION || - sdata->vif.type == NL80211_IFTYPE_ADHOC) { + sdata->vif.type == NL80211_IFTYPE_ADHOC) conf.bssid = sdata->u.sta.bssid; - conf.ssid = sdata->u.sta.ssid; - conf.ssid_len = sdata->u.sta.ssid_len; - } else if (sdata->vif.type == NL80211_IFTYPE_AP) { + else if (sdata->vif.type == NL80211_IFTYPE_AP) conf.bssid = sdata->dev->dev_addr; - conf.ssid = sdata->u.ap.ssid; - conf.ssid_len = sdata->u.ap.ssid_len; - } else if (ieee80211_vif_is_mesh(&sdata->vif)) { + else if (ieee80211_vif_is_mesh(&sdata->vif)) { u8 zero[ETH_ALEN] = { 0 }; conf.bssid = zero; - conf.ssid = zero; - conf.ssid_len = 0; } else { WARN_ON(1); return -EINVAL; @@ -192,9 +186,6 @@ int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed) if (WARN_ON(!conf.bssid && (changed & IEEE80211_IFCC_BSSID))) return -EINVAL; - if (WARN_ON(!conf.ssid && (changed & IEEE80211_IFCC_SSID))) - return -EINVAL; - return local->ops->config_interface(local_to_hw(local), &sdata->vif, &conf); } diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 9e6c75abc92..708eb4502ed 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -2416,7 +2416,6 @@ void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata, int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len) { struct ieee80211_if_sta *ifsta; - int res; if (len > IEEE80211_MAX_SSID_LEN) return -EINVAL; @@ -2428,19 +2427,6 @@ int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size memcpy(ifsta->ssid, ssid, len); ifsta->ssid_len = len; ifsta->flags &= ~IEEE80211_STA_PREV_BSSID_SET; - - res = 0; - /* - * Hack! MLME code needs to be cleaned up to have different - * entry points for configuration and internal selection change - */ - if (netif_running(sdata->dev)) - res = ieee80211_if_config(sdata, IEEE80211_IFCC_SSID); - if (res) { - printk(KERN_DEBUG "%s: Failed to config new SSID to " - "the low-level driver\n", sdata->dev->name); - return res; - } } if (len) diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c index 231cab57351..63f36e9d1af 100644 --- a/net/mac80211/wext.c +++ b/net/mac80211/wext.c @@ -407,13 +407,6 @@ static int ieee80211_ioctl_siwessid(struct net_device *dev, return 0; } - if (sdata->vif.type == NL80211_IFTYPE_AP) { - memcpy(sdata->u.ap.ssid, ssid, len); - memset(sdata->u.ap.ssid + len, 0, - IEEE80211_MAX_SSID_LEN - len); - sdata->u.ap.ssid_len = len; - return ieee80211_if_config(sdata, IEEE80211_IFCC_SSID); - } return -EOPNOTSUPP; } @@ -437,15 +430,6 @@ static int ieee80211_ioctl_giwessid(struct net_device *dev, return res; } - if (sdata->vif.type == NL80211_IFTYPE_AP) { - len = sdata->u.ap.ssid_len; - if (len > IW_ESSID_MAX_SIZE) - len = IW_ESSID_MAX_SIZE; - memcpy(ssid, sdata->u.ap.ssid, len); - data->length = len; - data->flags = 1; - return 0; - } return -EOPNOTSUPP; } -- cgit v1.2.3-70-g09d2 From fee52678dbda2099a25243e79da98dc390e1939a Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 26 Nov 2008 22:36:31 +0100 Subject: cfg80211: handle SIOCGIWNAME This patch moves the SIOCGIWNAME handling from mac80211 to cfg80211. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- include/net/cfg80211.h | 7 ++++++ net/mac80211/wext.c | 44 +--------------------------------- net/wireless/Makefile | 1 + net/wireless/wext-compat.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 69 insertions(+), 43 deletions(-) create mode 100644 net/wireless/wext-compat.c (limited to 'net/mac80211/wext.c') diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 53b06f6c62c..c97eac34ec0 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -5,6 +5,8 @@ #include #include #include +/* remove once we remove the wext stuff */ +#include /* * 802.11 configuration in-kernel interface @@ -524,4 +526,9 @@ struct cfg80211_ops { enum nl80211_sec_chan_offset); }; +/* temporary wext handlers */ +int cfg80211_wext_giwname(struct net_device *dev, + struct iw_request_info *info, + char *name, char *extra); + #endif /* __NET_CFG80211_H */ diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c index b3ce28d3561..b9eee3c903d 100644 --- a/net/mac80211/wext.c +++ b/net/mac80211/wext.c @@ -135,48 +135,6 @@ static int ieee80211_ioctl_siwgenie(struct net_device *dev, return -EOPNOTSUPP; } -static int ieee80211_ioctl_giwname(struct net_device *dev, - struct iw_request_info *info, - char *name, char *extra) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_supported_band *sband; - u8 is_ht = 0, is_a = 0, is_b = 0, is_g = 0; - - - sband = local->hw.wiphy->bands[IEEE80211_BAND_5GHZ]; - if (sband) { - is_a = 1; - is_ht |= sband->ht_cap.ht_supported; - } - - sband = local->hw.wiphy->bands[IEEE80211_BAND_2GHZ]; - if (sband) { - int i; - /* Check for mandatory rates */ - for (i = 0; i < sband->n_bitrates; i++) { - if (sband->bitrates[i].bitrate == 10) - is_b = 1; - if (sband->bitrates[i].bitrate == 60) - is_g = 1; - } - is_ht |= sband->ht_cap.ht_supported; - } - - strcpy(name, "IEEE 802.11"); - if (is_a) - strcat(name, "a"); - if (is_b) - strcat(name, "b"); - if (is_g) - strcat(name, "g"); - if (is_ht) - strcat(name, "n"); - - return 0; -} - - static int ieee80211_ioctl_giwrange(struct net_device *dev, struct iw_request_info *info, struct iw_point *data, char *extra) @@ -1146,7 +1104,7 @@ static int ieee80211_ioctl_siwencodeext(struct net_device *dev, static const iw_handler ieee80211_handler[] = { (iw_handler) NULL, /* SIOCSIWCOMMIT */ - (iw_handler) ieee80211_ioctl_giwname, /* SIOCGIWNAME */ + (iw_handler) cfg80211_wext_giwname, /* SIOCGIWNAME */ (iw_handler) NULL, /* SIOCSIWNWID */ (iw_handler) NULL, /* SIOCGIWNWID */ (iw_handler) ieee80211_ioctl_siwfreq, /* SIOCSIWFREQ */ diff --git a/net/wireless/Makefile b/net/wireless/Makefile index cc547edb111..9bc412c8343 100644 --- a/net/wireless/Makefile +++ b/net/wireless/Makefile @@ -6,4 +6,5 @@ obj-$(CONFIG_LIB80211_CRYPT_CCMP) += lib80211_crypt_ccmp.o obj-$(CONFIG_LIB80211_CRYPT_TKIP) += lib80211_crypt_tkip.o cfg80211-y += core.o sysfs.o radiotap.o util.o reg.o +cfg80211-$(CONFIG_WIRELESS_EXT) += wext-compat.o cfg80211-$(CONFIG_NL80211) += nl80211.o diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c new file mode 100644 index 00000000000..a5db4551a31 --- /dev/null +++ b/net/wireless/wext-compat.c @@ -0,0 +1,60 @@ +/* + * cfg80211 - wext compat code + * + * This is temporary code until all wireless functionality is migrated + * into cfg80211, when that happens all the exports here go away and + * we directly assign the wireless handlers of wireless interfaces. + * + * Copyright 2008 Johannes Berg + */ + +#include +#include +#include +#include +#include +#include "core.h" + +int cfg80211_wext_giwname(struct net_device *dev, + struct iw_request_info *info, + char *name, char *extra) +{ + struct wireless_dev *wdev = dev->ieee80211_ptr; + struct ieee80211_supported_band *sband; + bool is_ht = false, is_a = false, is_b = false, is_g = false; + + if (!wdev) + return -EOPNOTSUPP; + + sband = wdev->wiphy->bands[IEEE80211_BAND_5GHZ]; + if (sband) { + is_a = true; + is_ht |= sband->ht_cap.ht_supported; + } + + sband = wdev->wiphy->bands[IEEE80211_BAND_2GHZ]; + if (sband) { + int i; + /* Check for mandatory rates */ + for (i = 0; i < sband->n_bitrates; i++) { + if (sband->bitrates[i].bitrate == 10) + is_b = true; + if (sband->bitrates[i].bitrate == 60) + is_g = true; + } + is_ht |= sband->ht_cap.ht_supported; + } + + strcpy(name, "IEEE 802.11"); + if (is_a) + strcat(name, "a"); + if (is_b) + strcat(name, "b"); + if (is_g) + strcat(name, "g"); + if (is_ht) + strcat(name, "n"); + + return 0; +} +EXPORT_SYMBOL(cfg80211_wext_giwname); -- cgit v1.2.3-70-g09d2 From e60c7744f8aa77bcbcb0b294596d6c87445d1200 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 26 Nov 2008 23:31:40 +0100 Subject: cfg80211: handle SIOCGIWMODE/SIOCSIWMODE further reducing wext code in mac80211. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- include/net/cfg80211.h | 4 +++ net/mac80211/iface.c | 4 +++ net/mac80211/wext.c | 76 ++------------------------------------------ net/wireless/wext-compat.c | 79 ++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 89 insertions(+), 74 deletions(-) (limited to 'net/mac80211/wext.c') diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index c97eac34ec0..a0c0bf19496 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -530,5 +530,9 @@ struct cfg80211_ops { int cfg80211_wext_giwname(struct net_device *dev, struct iw_request_info *info, char *name, char *extra); +int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info, + u32 *mode, char *extra); +int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info, + u32 *mode, char *extra); #endif /* __NET_CFG80211_H */ diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 9ab772ac74a..5abbc3f07dd 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -698,6 +698,10 @@ int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata, if (type == sdata->vif.type) return 0; + /* Setting ad-hoc mode on non-IBSS channel is not supported. */ + if (sdata->local->oper_channel->flags & IEEE80211_CHAN_NO_IBSS) + return -EOPNOTSUPP; + /* * We could, here, on changes between IBSS/STA/MESH modes, * invoke an MLME function instead that disassociates etc. diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c index b9eee3c903d..4e1fdcfacb0 100644 --- a/net/mac80211/wext.c +++ b/net/mac80211/wext.c @@ -224,78 +224,6 @@ static int ieee80211_ioctl_giwrange(struct net_device *dev, } -static int ieee80211_ioctl_siwmode(struct net_device *dev, - struct iw_request_info *info, - __u32 *mode, char *extra) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_local *local = sdata->local; - int type; - - if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) - return -EOPNOTSUPP; - - switch (*mode) { - case IW_MODE_INFRA: - type = NL80211_IFTYPE_STATION; - break; - case IW_MODE_ADHOC: - /* Setting ad-hoc mode on non ibss channel is not - * supported. - */ - if (local->oper_channel && - (local->oper_channel->flags & IEEE80211_CHAN_NO_IBSS)) - return -EOPNOTSUPP; - - type = NL80211_IFTYPE_ADHOC; - break; - case IW_MODE_REPEAT: - type = NL80211_IFTYPE_WDS; - break; - case IW_MODE_MONITOR: - type = NL80211_IFTYPE_MONITOR; - break; - default: - return -EINVAL; - } - - return ieee80211_if_change_type(sdata, type); -} - - -static int ieee80211_ioctl_giwmode(struct net_device *dev, - struct iw_request_info *info, - __u32 *mode, char *extra) -{ - struct ieee80211_sub_if_data *sdata; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - switch (sdata->vif.type) { - case NL80211_IFTYPE_AP: - *mode = IW_MODE_MASTER; - break; - case NL80211_IFTYPE_STATION: - *mode = IW_MODE_INFRA; - break; - case NL80211_IFTYPE_ADHOC: - *mode = IW_MODE_ADHOC; - break; - case NL80211_IFTYPE_MONITOR: - *mode = IW_MODE_MONITOR; - break; - case NL80211_IFTYPE_WDS: - *mode = IW_MODE_REPEAT; - break; - case NL80211_IFTYPE_AP_VLAN: - *mode = IW_MODE_SECOND; /* FIXME */ - break; - default: - *mode = IW_MODE_AUTO; - break; - } - return 0; -} - static int ieee80211_ioctl_siwfreq(struct net_device *dev, struct iw_request_info *info, struct iw_freq *freq, char *extra) @@ -1109,8 +1037,8 @@ static const iw_handler ieee80211_handler[] = (iw_handler) NULL, /* SIOCGIWNWID */ (iw_handler) ieee80211_ioctl_siwfreq, /* SIOCSIWFREQ */ (iw_handler) ieee80211_ioctl_giwfreq, /* SIOCGIWFREQ */ - (iw_handler) ieee80211_ioctl_siwmode, /* SIOCSIWMODE */ - (iw_handler) ieee80211_ioctl_giwmode, /* SIOCGIWMODE */ + (iw_handler) cfg80211_wext_siwmode, /* SIOCSIWMODE */ + (iw_handler) cfg80211_wext_giwmode, /* SIOCGIWMODE */ (iw_handler) NULL, /* SIOCSIWSENS */ (iw_handler) NULL, /* SIOCGIWSENS */ (iw_handler) NULL /* not used */, /* SIOCSIWRANGE */ diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c index a5db4551a31..58e489fd4ae 100644 --- a/net/wireless/wext-compat.c +++ b/net/wireless/wext-compat.c @@ -58,3 +58,82 @@ int cfg80211_wext_giwname(struct net_device *dev, return 0; } EXPORT_SYMBOL(cfg80211_wext_giwname); + +int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info, + u32 *mode, char *extra) +{ + struct wireless_dev *wdev = dev->ieee80211_ptr; + struct cfg80211_registered_device *rdev; + struct vif_params vifparams; + enum nl80211_iftype type; + + if (!wdev) + return -EOPNOTSUPP; + + rdev = wiphy_to_dev(wdev->wiphy); + + if (!rdev->ops->change_virtual_intf) + return -EOPNOTSUPP; + + /* don't support changing VLANs, you just re-create them */ + if (wdev->iftype == NL80211_IFTYPE_AP_VLAN) + return -EOPNOTSUPP; + + switch (*mode) { + case IW_MODE_INFRA: + type = NL80211_IFTYPE_STATION; + break; + case IW_MODE_ADHOC: + type = NL80211_IFTYPE_ADHOC; + break; + case IW_MODE_REPEAT: + type = NL80211_IFTYPE_WDS; + break; + case IW_MODE_MONITOR: + type = NL80211_IFTYPE_MONITOR; + break; + default: + return -EINVAL; + } + + memset(&vifparams, 0, sizeof(vifparams)); + + return rdev->ops->change_virtual_intf(wdev->wiphy, dev->ifindex, type, + NULL, &vifparams); +} +EXPORT_SYMBOL(cfg80211_wext_siwmode); + +int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info, + u32 *mode, char *extra) +{ + struct wireless_dev *wdev = dev->ieee80211_ptr; + + if (!wdev) + return -EOPNOTSUPP; + + switch (wdev->iftype) { + case NL80211_IFTYPE_AP: + *mode = IW_MODE_MASTER; + break; + case NL80211_IFTYPE_STATION: + *mode = IW_MODE_INFRA; + break; + case NL80211_IFTYPE_ADHOC: + *mode = IW_MODE_ADHOC; + break; + case NL80211_IFTYPE_MONITOR: + *mode = IW_MODE_MONITOR; + break; + case NL80211_IFTYPE_WDS: + *mode = IW_MODE_REPEAT; + break; + case NL80211_IFTYPE_AP_VLAN: + *mode = IW_MODE_SECOND; /* FIXME */ + break; + default: + *mode = IW_MODE_AUTO; + break; + } + return 0; +} +EXPORT_SYMBOL(cfg80211_wext_giwmode); -- cgit v1.2.3-70-g09d2 From f546638c3f809fdacddc03fe765669c3042e0d9d Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Tue, 9 Dec 2008 12:30:03 +0100 Subject: mac80211: remove fragmentation offload functionality There's no driver that actually does fragmentation on the device, and the callback is buggy (when it returns an error, mac80211's fragmentation status is changed so reading the frag threshold from userspace reads the new value despite the error). Let's just remove it, if we really find some hardware supporting it we can add it back later. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- include/net/mac80211.h | 5 ----- net/mac80211/tx.c | 1 - net/mac80211/wext.c | 8 -------- 3 files changed, 14 deletions(-) (limited to 'net/mac80211/wext.c') diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 346f373fb67..5ecc686c1f1 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -1258,10 +1258,6 @@ enum ieee80211_ampdu_mlme_action { * * @set_rts_threshold: Configuration of RTS threshold (if device needs it) * - * @set_frag_threshold: Configuration of fragmentation threshold. Assign this if - * the device does fragmentation by itself; if this method is assigned then - * the stack will not do fragmentation. - * * @sta_notify: Notifies low level driver about addition or removal of an * associated station, AP, IBSS/WDS/mesh peer etc. Must be atomic. * @@ -1331,7 +1327,6 @@ 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 (*set_frag_threshold)(struct ieee80211_hw *hw, u32 value); void (*sta_notify)(struct ieee80211_hw *hw, struct ieee80211_vif *vif, enum sta_notify_cmd, struct ieee80211_sta *sta); void (*sta_notify_ps)(struct ieee80211_hw *hw, diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index d7761e95e4c..b098c58d216 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -1001,7 +1001,6 @@ __ieee80211_tx_prepare(struct ieee80211_tx_data *tx, if (tx->flags & IEEE80211_TX_FRAGMENTED) { if ((tx->flags & IEEE80211_TX_UNICAST) && skb->len + FCS_LEN > local->fragmentation_threshold && - !local->ops->set_frag_threshold && !(info->flags & IEEE80211_TX_CTL_AMPDU)) tx->flags |= IEEE80211_TX_FRAGMENTED; else diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c index 4e1fdcfacb0..fbeb927c116 100644 --- a/net/mac80211/wext.c +++ b/net/mac80211/wext.c @@ -639,14 +639,6 @@ static int ieee80211_ioctl_siwfrag(struct net_device *dev, local->fragmentation_threshold = frag->value & ~0x1; } - /* If the wlan card performs fragmentation in hardware/firmware, - * configure it here */ - - if (local->ops->set_frag_threshold) - return local->ops->set_frag_threshold( - local_to_hw(local), - local->fragmentation_threshold); - return 0; } -- cgit v1.2.3-70-g09d2 From b7a530d82cb36bb43901c196039b0fccee3ffcc3 Mon Sep 17 00:00:00 2001 From: Jouni Malinen Date: Wed, 10 Dec 2008 14:51:47 +0200 Subject: mac80211: Disable requests for new scans in AP mode AP mode operations are seriously affected if mac80211 runs through a multi-second scan while the AP is trying to send Beacon frames on the operation channel. While this could be implemented in a way that does not cause too many problems, it is not very simple and will require synchronization with Beacon frame scheduling in the drivers (scan one channel at a time between Beacon frames). Furthermore, such scanning takes quite a bit longer time and existing userspace applications would be likely to timeout while waiting for the results. For now, just refuse requests for new scans (SIOCSIWSCAN) when in AP mode. In practice, this moves the rejection from iwl* drivers into mac80211 to make it apply to every mac80211-based driver. This issue shows up in associated stations getting disconnected when something (e.g., Network Manager) requests a scan while the interface is in AP mode. When doing this continuously (e.g., NM does it every 120 seconds), the network gets close to useless. Signed-off-by: Jouni Malinen Acked-by: Johannes Berg Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-agn.c | 6 ------ drivers/net/wireless/iwlwifi/iwl3945-base.c | 11 ----------- net/mac80211/wext.c | 3 +-- 3 files changed, 1 insertion(+), 19 deletions(-) (limited to 'net/mac80211/wext.c') diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index 3f425f68b2c..06e26824507 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -2960,12 +2960,6 @@ static int iwl_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t ssid_len) goto out_unlock; } - if (priv->iw_mode == NL80211_IFTYPE_AP) { /* APs don't scan */ - ret = -EIO; - IWL_ERROR("ERROR: APs don't scan\n"); - goto out_unlock; - } - /* We don't schedule scan within next_scan_jiffies period. * Avoid scanning during possible EAPOL exchange, return * success immediately. diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c index 953ce9d84ce..f8830068387 100644 --- a/drivers/net/wireless/iwlwifi/iwl3945-base.c +++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c @@ -2103,11 +2103,6 @@ static void iwl3945_setup_rxon_timing(struct iwl3945_priv *priv) static int iwl3945_scan_initiate(struct iwl3945_priv *priv) { - if (priv->iw_mode == NL80211_IFTYPE_AP) { - IWL_ERROR("APs don't scan.\n"); - return 0; - } - if (!iwl3945_is_ready_rf(priv)) { IWL_DEBUG_SCAN("Aborting scan due to not ready.\n"); return -EIO; @@ -6976,12 +6971,6 @@ static int iwl3945_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len) goto out_unlock; } - if (priv->iw_mode == NL80211_IFTYPE_AP) { /* APs don't scan */ - rc = -EIO; - IWL_ERROR("ERROR: APs don't scan\n"); - goto out_unlock; - } - /* we don't schedule scan within next_scan_jiffies period */ if (priv->next_scan_jiffies && time_after(priv->next_scan_jiffies, jiffies)) { diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c index fbeb927c116..15428048d01 100644 --- a/net/mac80211/wext.c +++ b/net/mac80211/wext.c @@ -418,8 +418,7 @@ static int ieee80211_ioctl_siwscan(struct net_device *dev, if (sdata->vif.type != NL80211_IFTYPE_STATION && sdata->vif.type != NL80211_IFTYPE_ADHOC && - sdata->vif.type != NL80211_IFTYPE_MESH_POINT && - sdata->vif.type != NL80211_IFTYPE_AP) + sdata->vif.type != NL80211_IFTYPE_MESH_POINT) return -EOPNOTSUPP; /* if SSID was specified explicitly then use that */ -- cgit v1.2.3-70-g09d2 From e0cb686ff879dc9ac045ad7258ec687088d4e450 Mon Sep 17 00:00:00 2001 From: Kalle Valo Date: Thu, 18 Dec 2008 23:35:13 +0200 Subject: mac80211: enable IEEE80211_CONF_PS only when associated Also disable power save when disassociated. It makes no sense to have power save enabled while disassociated. iwlwifi seems to have this check in the driver, but it's better to do this in mac80211 instead. Signed-off-by: Kalle Valo Acked-by: Johannes Berg Signed-off-by: John W. Linville --- net/mac80211/ieee80211_i.h | 1 + net/mac80211/mlme.c | 15 +++++++++++++-- net/mac80211/wext.c | 32 ++++++++++++++++++++++++++------ 3 files changed, 40 insertions(+), 8 deletions(-) (limited to 'net/mac80211/wext.c') diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index a7dabaecfc7..18b91601770 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -688,6 +688,7 @@ struct ieee80211_local { */ int wifi_wme_noack_test; unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */ + bool powersave; #ifdef CONFIG_MAC80211_DEBUGFS struct local_debugfsdentries { diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 1374b8c750a..dac8bd37dcf 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -744,6 +744,11 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, bss_info_changed |= BSS_CHANGED_BASIC_RATES; ieee80211_bss_info_change_notify(sdata, bss_info_changed); + if (local->powersave) { + local->hw.conf.flags |= IEEE80211_CONF_PS; + ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); + } + netif_tx_start_all_queues(sdata->dev); netif_carrier_on(sdata->dev); @@ -812,7 +817,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, { struct ieee80211_local *local = sdata->local; struct sta_info *sta; - u32 changed = 0; + u32 changed = 0, config_changed = 0; rcu_read_lock(); @@ -859,8 +864,14 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, local->hw.conf.ht.enabled = false; local->oper_channel_type = NL80211_CHAN_NO_HT; - ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_HT); + config_changed |= IEEE80211_CONF_CHANGE_HT; + + if (local->hw.conf.flags & IEEE80211_CONF_PS) { + local->hw.conf.flags &= ~IEEE80211_CONF_PS; + config_changed |= IEEE80211_CONF_CHANGE_PS; + } + ieee80211_hw_config(local, config_changed); ieee80211_bss_info_change_notify(sdata, changed); rcu_read_lock(); diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c index 15428048d01..f6640d04715 100644 --- a/net/mac80211/wext.c +++ b/net/mac80211/wext.c @@ -830,25 +830,46 @@ static int ieee80211_ioctl_siwpower(struct net_device *dev, struct iw_param *wrq, char *extra) { + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); struct ieee80211_conf *conf = &local->hw.conf; + int ret = 0; + bool ps; + + if (sdata->vif.type != NL80211_IFTYPE_STATION) + return -EINVAL; if (wrq->disabled) { - conf->flags &= ~IEEE80211_CONF_PS; - return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); + ps = false; + goto set; } switch (wrq->flags & IW_POWER_MODE) { case IW_POWER_ON: /* If not specified */ case IW_POWER_MODE: /* If set all mask */ case IW_POWER_ALL_R: /* If explicitely state all */ - conf->flags |= IEEE80211_CONF_PS; + ps = true; break; default: /* Otherwise we don't support it */ return -EINVAL; } - return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); + if (ps == local->powersave) + return ret; + +set: + local->powersave = ps; + + if (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED) { + if (local->powersave) + conf->flags |= IEEE80211_CONF_PS; + else + conf->flags &= ~IEEE80211_CONF_PS; + + ret = ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); + } + + return ret; } static int ieee80211_ioctl_giwpower(struct net_device *dev, @@ -857,9 +878,8 @@ static int ieee80211_ioctl_giwpower(struct net_device *dev, char *extra) { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_conf *conf = &local->hw.conf; - wrqu->power.disabled = !(conf->flags & IEEE80211_CONF_PS); + wrqu->power.disabled = !local->powersave; return 0; } -- cgit v1.2.3-70-g09d2 From 520eb82076993b7f55ef9b80771d264272e5127b Mon Sep 17 00:00:00 2001 From: Kalle Valo Date: Thu, 18 Dec 2008 23:35:27 +0200 Subject: mac80211: implement dynamic power save This patch implements dynamic power save for mac80211. Basically it means enabling power save mode after an idle period. Implementing it dynamically gives a good compromise of low power consumption and low latency. Some hardware have support for this in firmware, but some require the host to do it. The dynamic power save is implemented by adding an timeout to ieee80211_subif_start_xmit(). The timeout can be enabled from userspace with Wireless Extensions. For example, the command below enables the dynamic power save and sets the time timeout to 500 ms: iwconfig wlan0 power timeout 500m Power save now only works with devices which handle power save in firmware. It's also disabled by default and the heuristics when and how to enable is considered as a policy decision and will be left for the userspace to handle. In case the firmware has support for this, drivers can disable this feature with IEEE80211_HW_NO_STACK_DYNAMIC_PS. Big thanks to Johannes Berg for the help with the design and code. Signed-off-by: Kalle Valo Acked-by: Johannes Berg Signed-off-by: John W. Linville --- include/net/mac80211.h | 6 ++++++ net/mac80211/ieee80211_i.h | 10 ++++++++++ net/mac80211/main.c | 7 +++++++ net/mac80211/mlme.c | 49 ++++++++++++++++++++++++++++++++++++++++++++-- net/mac80211/tx.c | 13 ++++++++++++ net/mac80211/wext.c | 30 ++++++++++++++++++---------- 6 files changed, 103 insertions(+), 12 deletions(-) (limited to 'net/mac80211/wext.c') diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 9428d3e2f11..b3bd00a9d99 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -854,6 +854,11 @@ enum ieee80211_tkip_key_type { * * @IEEE80211_HW_AMPDU_AGGREGATION: * Hardware supports 11n A-MPDU aggregation. + * + * @IEEE80211_HW_NO_STACK_DYNAMIC_PS: + * Hardware which has dynamic power save support, meaning + * that power save is enabled in idle periods, and don't need support + * from stack. */ enum ieee80211_hw_flags { IEEE80211_HW_RX_INCLUDES_FCS = 1<<1, @@ -866,6 +871,7 @@ enum ieee80211_hw_flags { IEEE80211_HW_NOISE_DBM = 1<<8, IEEE80211_HW_SPECTRUM_MGMT = 1<<9, IEEE80211_HW_AMPDU_AGGREGATION = 1<<10, + IEEE80211_HW_NO_STACK_DYNAMIC_PS = 1<<11, }; /** diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index a74d6738b30..f3eec989662 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -540,6 +540,7 @@ enum { enum queue_stop_reason { IEEE80211_QUEUE_STOP_REASON_DRIVER, + IEEE80211_QUEUE_STOP_REASON_PS, }; /* maximum number of hardware queues we support. */ @@ -693,7 +694,12 @@ struct ieee80211_local { */ int wifi_wme_noack_test; unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */ + bool powersave; + int dynamic_ps_timeout; + struct work_struct dynamic_ps_enable_work; + struct work_struct dynamic_ps_disable_work; + struct timer_list dynamic_ps_timer; #ifdef CONFIG_MAC80211_DEBUGFS struct local_debugfsdentries { @@ -977,6 +983,10 @@ int ieee80211_set_freq(struct ieee80211_sub_if_data *sdata, int freq); u64 ieee80211_mandatory_rates(struct ieee80211_local *local, enum ieee80211_band band); +void ieee80211_dynamic_ps_enable_work(struct work_struct *work); +void ieee80211_dynamic_ps_disable_work(struct work_struct *work); +void ieee80211_dynamic_ps_timer(unsigned long data); + void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw, enum queue_stop_reason reason); void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw, diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 21335382f53..24b14363d6e 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -729,6 +729,13 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work); + INIT_WORK(&local->dynamic_ps_enable_work, + ieee80211_dynamic_ps_enable_work); + INIT_WORK(&local->dynamic_ps_disable_work, + ieee80211_dynamic_ps_disable_work); + setup_timer(&local->dynamic_ps_timer, + ieee80211_dynamic_ps_timer, (unsigned long) local); + sta_info_init(local); tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending, diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index dac8bd37dcf..5ba721b6a39 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -745,8 +745,14 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, ieee80211_bss_info_change_notify(sdata, bss_info_changed); if (local->powersave) { - local->hw.conf.flags |= IEEE80211_CONF_PS; - ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); + if (local->dynamic_ps_timeout > 0) + mod_timer(&local->dynamic_ps_timer, jiffies + + msecs_to_jiffies(local->dynamic_ps_timeout)); + else { + conf->flags |= IEEE80211_CONF_PS; + ieee80211_hw_config(local, + IEEE80211_CONF_CHANGE_PS); + } } netif_tx_start_all_queues(sdata->dev); @@ -866,6 +872,9 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, local->oper_channel_type = NL80211_CHAN_NO_HT; config_changed |= IEEE80211_CONF_CHANGE_HT; + del_timer_sync(&local->dynamic_ps_timer); + cancel_work_sync(&local->dynamic_ps_enable_work); + if (local->hw.conf.flags & IEEE80211_CONF_PS) { local->hw.conf.flags &= ~IEEE80211_CONF_PS; config_changed |= IEEE80211_CONF_CHANGE_PS; @@ -2593,3 +2602,39 @@ void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local) ieee80211_restart_sta_timer(sdata); rcu_read_unlock(); } + +void ieee80211_dynamic_ps_disable_work(struct work_struct *work) +{ + struct ieee80211_local *local = + container_of(work, struct ieee80211_local, + dynamic_ps_disable_work); + + if (local->hw.conf.flags & IEEE80211_CONF_PS) { + local->hw.conf.flags &= ~IEEE80211_CONF_PS; + ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); + } + + ieee80211_wake_queues_by_reason(&local->hw, + IEEE80211_QUEUE_STOP_REASON_PS); +} + +void ieee80211_dynamic_ps_enable_work(struct work_struct *work) +{ + struct ieee80211_local *local = + container_of(work, struct ieee80211_local, + dynamic_ps_enable_work); + + if (local->hw.conf.flags & IEEE80211_CONF_PS) + return; + + local->hw.conf.flags |= IEEE80211_CONF_PS; + + ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); +} + +void ieee80211_dynamic_ps_timer(unsigned long data) +{ + struct ieee80211_local *local = (void *) data; + + queue_work(local->hw.workqueue, &local->dynamic_ps_enable_work); +} diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index b098c58d216..a4af3a124cc 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -1473,6 +1473,19 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb, goto fail; } + if (!(local->hw.flags & IEEE80211_HW_NO_STACK_DYNAMIC_PS) && + local->dynamic_ps_timeout > 0) { + if (local->hw.conf.flags & IEEE80211_CONF_PS) { + ieee80211_stop_queues_by_reason(&local->hw, + IEEE80211_QUEUE_STOP_REASON_PS); + queue_work(local->hw.workqueue, + &local->dynamic_ps_disable_work); + } + + mod_timer(&local->dynamic_ps_timer, jiffies + + msecs_to_jiffies(local->dynamic_ps_timeout)); + } + nh_pos = skb_network_header(skb) - skb->data; h_pos = skb_transport_header(skb) - skb->data; diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c index f6640d04715..7162d5816f3 100644 --- a/net/mac80211/wext.c +++ b/net/mac80211/wext.c @@ -833,7 +833,7 @@ static int ieee80211_ioctl_siwpower(struct net_device *dev, struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); struct ieee80211_conf *conf = &local->hw.conf; - int ret = 0; + int ret = 0, timeout = 0; bool ps; if (sdata->vif.type != NL80211_IFTYPE_STATION) @@ -841,6 +841,7 @@ static int ieee80211_ioctl_siwpower(struct net_device *dev, if (wrq->disabled) { ps = false; + timeout = 0; goto set; } @@ -850,22 +851,31 @@ static int ieee80211_ioctl_siwpower(struct net_device *dev, case IW_POWER_ALL_R: /* If explicitely state all */ ps = true; break; - default: /* Otherwise we don't support it */ - return -EINVAL; + default: /* Otherwise we ignore */ + break; } - if (ps == local->powersave) - return ret; + if (wrq->flags & IW_POWER_TIMEOUT) + timeout = wrq->value / 1000; set: + if (ps == local->powersave && timeout == local->dynamic_ps_timeout) + return ret; + local->powersave = ps; + local->dynamic_ps_timeout = timeout; if (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED) { - if (local->powersave) - conf->flags |= IEEE80211_CONF_PS; - else - conf->flags &= ~IEEE80211_CONF_PS; - + if (!(local->hw.flags & IEEE80211_HW_NO_STACK_DYNAMIC_PS) && + local->dynamic_ps_timeout > 0) + mod_timer(&local->dynamic_ps_timer, jiffies + + msecs_to_jiffies(local->dynamic_ps_timeout)); + else { + if (local->powersave) + conf->flags |= IEEE80211_CONF_PS; + else + conf->flags &= ~IEEE80211_CONF_PS; + } ret = ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); } -- cgit v1.2.3-70-g09d2