From 9b1cb21c36b39057ec28a8b551f301449e5c51bb Mon Sep 17 00:00:00 2001 From: "John W. Linville" Date: Mon, 7 Dec 2009 16:37:42 -0500 Subject: [PATCH 01/24] iwlwifi: fix warning from ieee80211_stop_tx_ba_cb_irqsafe argument change MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit CC [M] drivers/net/wireless/iwlwifi/iwl-tx.o drivers/net/wireless/iwlwifi/iwl-tx.c: In function ‘iwl_tx_agg_stop’: drivers/net/wireless/iwlwifi/iwl-tx.c:1356: warning: passing argument 1 of ‘ieee80211_stop_tx_ba_cb_irqsafe’ from incompatible pointer type include/net/mac80211.h:2128: note: expected ‘struct ieee80211_vif *’ but argument is of type ‘struct ieee80211_hw *’ Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-tx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c index 58b132f9cf28..00da5e152d46 100644 --- a/drivers/net/wireless/iwlwifi/iwl-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-tx.c @@ -1353,7 +1353,7 @@ int iwl_tx_agg_stop(struct iwl_priv *priv , const u8 *ra, u16 tid) if (priv->stations[sta_id].tid[tid].agg.state == IWL_EMPTYING_HW_QUEUE_ADDBA) { IWL_DEBUG_HT(priv, "AGG stop before setup done\n"); - ieee80211_stop_tx_ba_cb_irqsafe(priv->hw, ra, tid); + ieee80211_stop_tx_ba_cb_irqsafe(priv->vif, ra, tid); priv->stations[sta_id].tid[tid].agg.state = IWL_AGG_OFF; return 0; } From e84217a9fc6264fe4e73fc85cdfff185b71b7443 Mon Sep 17 00:00:00 2001 From: Kalle Valo Date: Thu, 26 Nov 2009 10:55:55 +0200 Subject: [PATCH 02/24] wl1251: remove false warning messages There was a warning from wl1251_op_bss_info_changed(): wl1251: WARNING Set ctsprotect failed 0 It was printed always, it's completely false and can be removed. Signed-off-by: Kalle Valo Signed-off-by: John W. Linville --- drivers/net/wireless/wl12xx/wl1251_main.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/net/wireless/wl12xx/wl1251_main.c b/drivers/net/wireless/wl12xx/wl1251_main.c index ff4be7bf5d36..8353139d85df 100644 --- a/drivers/net/wireless/wl12xx/wl1251_main.c +++ b/drivers/net/wireless/wl12xx/wl1251_main.c @@ -1181,8 +1181,6 @@ static void wl1251_op_bss_info_changed(struct ieee80211_hw *hw, wl->beacon_int, wl->dtim_period); if (ret < 0) goto out_sleep; - wl1251_warning("Set ctsprotect failed %d", ret); - goto out_sleep; } } From de8df1ea489d80106ea82d4a6323e83d376913fb Mon Sep 17 00:00:00 2001 From: Kalle Valo Date: Thu, 26 Nov 2009 10:56:06 +0200 Subject: [PATCH 03/24] wl1251: fix bssid handling bssid needs to be copied first in wl1251_op_bss_info_changed(), otherwise templates will have incorrect bssid and power save will not work correctly. Signed-off-by: Kalle Valo Signed-off-by: John W. Linville --- drivers/net/wireless/wl12xx/wl1251_main.c | 30 +++++++++++------------ 1 file changed, 15 insertions(+), 15 deletions(-) diff --git a/drivers/net/wireless/wl12xx/wl1251_main.c b/drivers/net/wireless/wl12xx/wl1251_main.c index 8353139d85df..50d17fc00785 100644 --- a/drivers/net/wireless/wl12xx/wl1251_main.c +++ b/drivers/net/wireless/wl12xx/wl1251_main.c @@ -1110,6 +1110,21 @@ static void wl1251_op_bss_info_changed(struct ieee80211_hw *hw, if (ret < 0) goto out; + if (changed & BSS_CHANGED_BSSID) { + memcpy(wl->bssid, bss_conf->bssid, ETH_ALEN); + + ret = wl1251_build_null_data(wl); + if (ret < 0) + goto out; + + if (wl->bss_type != BSS_TYPE_IBSS) { + ret = wl1251_join(wl, wl->bss_type, wl->channel, + wl->beacon_int, wl->dtim_period); + if (ret < 0) + goto out_sleep; + } + } + if (changed & BSS_CHANGED_ASSOC) { if (bss_conf->assoc) { wl->beacon_int = bss_conf->beacon_int; @@ -1169,21 +1184,6 @@ static void wl1251_op_bss_info_changed(struct ieee80211_hw *hw, } } - if (changed & BSS_CHANGED_BSSID) { - memcpy(wl->bssid, bss_conf->bssid, ETH_ALEN); - - ret = wl1251_build_null_data(wl); - if (ret < 0) - goto out; - - if (wl->bss_type != BSS_TYPE_IBSS) { - ret = wl1251_join(wl, wl->bss_type, wl->channel, - wl->beacon_int, wl->dtim_period); - if (ret < 0) - goto out_sleep; - } - } - if (changed & BSS_CHANGED_BEACON) { beacon = ieee80211_beacon_get(hw, vif); ret = wl1251_cmd_template_set(wl, CMD_BEACON, beacon->data, From c14589eb3080636a2f71ebaf21ab9fd70ffc20cc Mon Sep 17 00:00:00 2001 From: Kalle Valo Date: Thu, 26 Nov 2009 10:56:13 +0200 Subject: [PATCH 04/24] wl1251: don't build null data template in wl1251_op_config() The bssid can be zero when null data template is set in wl1251_op_config(). It's enough, and especially safe, to set it once after association. Signed-off-by: Kalle Valo Signed-off-by: John W. Linville --- drivers/net/wireless/wl12xx/wl1251_main.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/net/wireless/wl12xx/wl1251_main.c b/drivers/net/wireless/wl12xx/wl1251_main.c index 50d17fc00785..2f50a256efa5 100644 --- a/drivers/net/wireless/wl12xx/wl1251_main.c +++ b/drivers/net/wireless/wl12xx/wl1251_main.c @@ -629,10 +629,6 @@ static int wl1251_op_config(struct ieee80211_hw *hw, u32 changed) goto out_sleep; } - ret = wl1251_build_null_data(wl); - if (ret < 0) - goto out_sleep; - if (conf->flags & IEEE80211_CONF_PS && !wl->psm_requested) { wl1251_debug(DEBUG_PSM, "psm enabled"); From bc83b6819289c031c439a5aa18ba0fd539d14f3e Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Sun, 29 Nov 2009 12:19:06 +0100 Subject: [PATCH 05/24] mac80211: recalculate idle later in MLME hwsim testing has revealed that when the MLME recalculates the idle state of the device, it sometimes does so before sending the final deauthentication or disassociation frame. This patch changes the place where the idle state is recalculated, but of course driver transmit is typically asynchronous while configuration is expected to be synchronous, so it doesn't fix all possible cases yet. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- net/mac80211/mlme.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 6dc7b5ad9a41..d8d50fb5e823 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -1083,8 +1083,6 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, ieee80211_set_wmm_default(sdata); - ieee80211_recalc_idle(local); - /* channel(_type) changes are handled by ieee80211_hw_config */ local->oper_channel_type = NL80211_CHAN_NO_HT; @@ -1370,6 +1368,7 @@ ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata, if (!wk) { ieee80211_set_disassoc(sdata, true); + ieee80211_recalc_idle(sdata->local); } else { list_del(&wk->list); kfree(wk); @@ -1403,6 +1402,7 @@ ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata, sdata->dev->name, mgmt->sa, reason_code); ieee80211_set_disassoc(sdata, false); + ieee80211_recalc_idle(sdata->local); return RX_MGMT_CFG80211_DISASSOC; } @@ -2117,6 +2117,7 @@ static void ieee80211_sta_work(struct work_struct *work) " after %dms, disconnecting.\n", bssid, (1000 * IEEE80211_PROBE_WAIT)/HZ); ieee80211_set_disassoc(sdata, true); + ieee80211_recalc_idle(local); mutex_unlock(&ifmgd->mtx); /* * must be outside lock due to cfg80211, @@ -2560,6 +2561,8 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, IEEE80211_STYPE_DEAUTH, req->reason_code, cookie); + ieee80211_recalc_idle(sdata->local); + return 0; } @@ -2592,5 +2595,8 @@ int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, ieee80211_send_deauth_disassoc(sdata, req->bss->bssid, IEEE80211_STYPE_DISASSOC, req->reason_code, cookie); + + ieee80211_recalc_idle(sdata->local); + return 0; } From 7c3f4bbedc241ddcd3abe1f419c356e625231da1 Mon Sep 17 00:00:00 2001 From: Vivek Natarajan Date: Mon, 30 Nov 2009 16:50:53 +0530 Subject: [PATCH 06/24] mac80211: Fix dynamic power save for scanning. Not only ps_sdata but also IEEE80211_CONF_PS is to be considered before restoring PS in scan_ps_disable(). For instance, when ps_sdata is set but CONF_PS is not set just because the dynamic timer is still running, a sw scan leads to setting of CONF_PS in scan_ps_disable instead of restarting the dynamic PS timer. Also for the above case, a null data frame is to be sent after returning to operating channel which was not happening with the current implementation. This patch fixes this too. Signed-off-by: Vivek Natarajan Reviewed-by: Kalle Valo Signed-off-by: John W. Linville --- net/mac80211/ieee80211_i.h | 1 + net/mac80211/scan.c | 20 ++++++++++++++++---- 2 files changed, 17 insertions(+), 4 deletions(-) diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 419f186cfcf0..91dc8636d644 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -746,6 +746,7 @@ struct ieee80211_local { unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */ bool pspolling; + bool scan_ps_enabled; /* * PS can only be enabled when we have exactly one managed * interface (and monitors) in PS, this then points there. diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index 4cf387c944bf..f1a4c7160300 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -227,7 +227,8 @@ static bool ieee80211_prep_hw_scan(struct ieee80211_local *local) static void ieee80211_scan_ps_enable(struct ieee80211_sub_if_data *sdata) { struct ieee80211_local *local = sdata->local; - bool ps = false; + + local->scan_ps_enabled = false; /* FIXME: what to do when local->pspolling is true? */ @@ -235,12 +236,13 @@ static void ieee80211_scan_ps_enable(struct ieee80211_sub_if_data *sdata) cancel_work_sync(&local->dynamic_ps_enable_work); if (local->hw.conf.flags & IEEE80211_CONF_PS) { - ps = true; + local->scan_ps_enabled = true; local->hw.conf.flags &= ~IEEE80211_CONF_PS; ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); } - if (!ps || !(local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)) + if (!(local->scan_ps_enabled) || + !(local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)) /* * If power save was enabled, no need to send a nullfunc * frame because AP knows that we are sleeping. But if the @@ -261,7 +263,7 @@ static void ieee80211_scan_ps_disable(struct ieee80211_sub_if_data *sdata) if (!local->ps_sdata) ieee80211_send_nullfunc(local, sdata, 0); - else { + else if (local->scan_ps_enabled) { /* * In !IEEE80211_HW_PS_NULLFUNC_STACK case the hardware * will send a nullfunc frame with the powersave bit set @@ -277,6 +279,16 @@ static void ieee80211_scan_ps_disable(struct ieee80211_sub_if_data *sdata) */ local->hw.conf.flags |= IEEE80211_CONF_PS; ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); + } else if (local->hw.conf.dynamic_ps_timeout > 0) { + /* + * If IEEE80211_CONF_PS was not set and the dynamic_ps_timer + * had been running before leaving the operating channel, + * restart the timer now and send a nullfunc frame to inform + * the AP that we are awake. + */ + ieee80211_send_nullfunc(local, sdata, 0); + mod_timer(&local->dynamic_ps_timer, jiffies + + msecs_to_jiffies(local->hw.conf.dynamic_ps_timeout)); } } From 0b5351a8e86292dfac1ca1451deaadb416a33cb8 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 30 Nov 2009 18:11:18 +0100 Subject: [PATCH 07/24] mwl8k: fix MCS bitmap size in SET_RATE command The MCS bitmaps in the SET_RATE command structure were of the wrong size, due to use of the wrong define for the array length. Just hardcode the lengths as 16, and do the same for the MCS bitmaps in other command structures. Signed-off-by: Lennert Buytenhek Signed-off-by: John W. Linville --- drivers/net/wireless/mwl8k.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index 0cb5ecc822a8..f93eddda9c0f 100644 --- a/drivers/net/wireless/mwl8k.c +++ b/drivers/net/wireless/mwl8k.c @@ -634,7 +634,6 @@ struct ewc_ht_info { #define MWL8K_PEER_TYPE_ACCESSPOINT 2 #define MWL8K_IEEE_LEGACY_DATA_RATES 13 -#define MWL8K_MCS_BITMAP_SIZE 16 struct peer_capability_info { /* Peer type - AP vs. STA. */ @@ -655,7 +654,7 @@ struct peer_capability_info { __u8 legacy_rates[MWL8K_IEEE_LEGACY_DATA_RATES]; /* HT rate table. Intersection of our rates and peer rates. */ - __u8 ht_rates[MWL8K_MCS_BITMAP_SIZE]; + __u8 ht_rates[16]; __u8 pad[16]; /* If set, interoperability mode, no proprietary extensions. */ @@ -2638,8 +2637,8 @@ struct mwl8k_cmd_update_rateset { __u8 legacy_rates[MWL8K_RATE_INDEX_MAX_ARRAY]; /* Bitmap for supported MCS codes. */ - __u8 mcs_set[MWL8K_IEEE_LEGACY_DATA_RATES]; - __u8 reserved[MWL8K_IEEE_LEGACY_DATA_RATES]; + __u8 mcs_set[16]; + __u8 reserved[16]; } __attribute__((packed)); static int mwl8k_update_rateset(struct ieee80211_hw *hw, From 140eb5e2c1978622d7cd979d59a1c0586fe3bbdb Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 30 Nov 2009 18:11:44 +0100 Subject: [PATCH 08/24] mwl8k: fix UPDATE_STADB command struct legacy_rates array length There exist 12 802.11b/g rates, but mwl8k supports two additional (non-standard) rates, and includes those rates in rate bitmasks and in its internal rate table that hardware rate indices index. Commit "mwl8k: report rate and other information for received frames" added one of the nonstandard rates to the mwl8k_rates table to make the OFDM rates in the table line up with the rate indices that are reported in the receive descriptor (so that we can just simply copy the receive descriptor rate index into ieee80211_rx_status::rate_idx) and bumped MWL8K_IEEE_LEGACY_DATA_RATES from 12 to 13, but this screwed up the UPDATE_STADB command struct layout, as it also uses that define, for its legacy_rates array. To avoid having to convert rate indices and legacy rate bitmaps (e.g. ieee80211_bss_conf::basic_rates) between the 12-rate mac80211 format and the 14-rate mwl8k format, we'll report all 14 rates in our wiphy's band, but filter out the nonstandard ones e.g. in the case of the UPDATE_STADB command which only accepts 12 rates. In the commands that accept 14 rates (SET_AID, SET_RATE), replace the use of the MWL8K_RATE_INDEX_MAX_ARRAY define in the command struct by the constant 14, to make it clearer that these commands accept 14 rates. Signed-off-by: Lennert Buytenhek Signed-off-by: John W. Linville --- drivers/net/wireless/mwl8k.c | 51 +++++++++--------------------------- 1 file changed, 13 insertions(+), 38 deletions(-) diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index f93eddda9c0f..0251b6144f57 100644 --- a/drivers/net/wireless/mwl8k.c +++ b/drivers/net/wireless/mwl8k.c @@ -184,7 +184,7 @@ struct mwl8k_priv { /* PHY parameters */ struct ieee80211_supported_band band; struct ieee80211_channel channels[14]; - struct ieee80211_rate rates[13]; + struct ieee80211_rate rates[14]; bool radio_on; bool radio_short_preamble; @@ -220,15 +220,6 @@ struct mwl8k_vif { u8 bssid[ETH_ALEN]; u8 mac_addr[ETH_ALEN]; - /* - * Subset of supported legacy rates. - * Intersection of AP and STA supported rates. - */ - struct ieee80211_rate legacy_rates[13]; - - /* number of supported legacy rates */ - u8 legacy_nrates; - /* Index into station database.Returned by update_sta_db call */ u8 peer_id; @@ -266,6 +257,11 @@ static const struct ieee80211_rate mwl8k_rates[] = { { .bitrate = 360, .hw_value = 72, }, { .bitrate = 480, .hw_value = 96, }, { .bitrate = 540, .hw_value = 108, }, + { .bitrate = 720, .hw_value = 144, }, +}; + +static const u8 mwl8k_rateids[12] = { + 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108, }; /* Set or get info from Firmware */ @@ -633,8 +629,6 @@ struct ewc_ht_info { /* Peer Entry flags - used to define the type of the peer node */ #define MWL8K_PEER_TYPE_ACCESSPOINT 2 -#define MWL8K_IEEE_LEGACY_DATA_RATES 13 - struct peer_capability_info { /* Peer type - AP vs. STA. */ __u8 peer_type; @@ -651,7 +645,7 @@ struct peer_capability_info { struct ewc_ht_info ewc_info; /* Legacy rate table. Intersection of our rates and peer rates. */ - __u8 legacy_rates[MWL8K_IEEE_LEGACY_DATA_RATES]; + __u8 legacy_rates[12]; /* HT rate table. Intersection of our rates and peer rates. */ __u8 ht_rates[16]; @@ -2514,9 +2508,7 @@ static int mwl8k_cmd_update_sta_db(struct ieee80211_hw *hw, struct ieee80211_bss_conf *info = &mv_vif->bss_info; struct mwl8k_cmd_update_sta_db *cmd; struct peer_capability_info *peer_info; - struct ieee80211_rate *bitrates = mv_vif->legacy_rates; int rc; - __u8 count, *rates; cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); if (cmd == NULL) @@ -2535,13 +2527,11 @@ static int mwl8k_cmd_update_sta_db(struct ieee80211_hw *hw, /* Build peer_info block */ peer_info->peer_type = MWL8K_PEER_TYPE_ACCESSPOINT; peer_info->basic_caps = cpu_to_le16(info->assoc_capability); + memcpy(peer_info->legacy_rates, mwl8k_rateids, + sizeof(mwl8k_rateids)); peer_info->interop = 1; peer_info->amsdu_enabled = 0; - rates = peer_info->legacy_rates; - for (count = 0; count < mv_vif->legacy_nrates; count++) - rates[count] = bitrates[count].hw_value; - rc = mwl8k_post_cmd(hw, &cmd->header); if (rc == 0) mv_vif->peer_id = peer_info->station_id; @@ -2564,8 +2554,6 @@ static int mwl8k_cmd_update_sta_db(struct ieee80211_hw *hw, /* * CMD_SET_AID. */ -#define MWL8K_RATE_INDEX_MAX_ARRAY 14 - #define MWL8K_FRAME_PROT_DISABLED 0x00 #define MWL8K_FRAME_PROT_11G 0x07 #define MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY 0x02 @@ -2578,7 +2566,7 @@ struct mwl8k_cmd_update_set_aid { /* AP's MAC address (BSSID) */ __u8 bssid[ETH_ALEN]; __le16 protection_mode; - __u8 supp_rates[MWL8K_RATE_INDEX_MAX_ARRAY]; + __u8 supp_rates[14]; } __attribute__((packed)); static int mwl8k_cmd_set_aid(struct ieee80211_hw *hw, @@ -2587,8 +2575,6 @@ static int mwl8k_cmd_set_aid(struct ieee80211_hw *hw, struct mwl8k_vif *mv_vif = MWL8K_VIF(vif); struct ieee80211_bss_conf *info = &mv_vif->bss_info; struct mwl8k_cmd_update_set_aid *cmd; - struct ieee80211_rate *bitrates = mv_vif->legacy_rates; - int count; u16 prot_mode; int rc; @@ -2620,8 +2606,7 @@ static int mwl8k_cmd_set_aid(struct ieee80211_hw *hw, } cmd->protection_mode = cpu_to_le16(prot_mode); - for (count = 0; count < mv_vif->legacy_nrates; count++) - cmd->supp_rates[count] = bitrates[count].hw_value; + memcpy(cmd->supp_rates, mwl8k_rateids, sizeof(mwl8k_rateids)); rc = mwl8k_post_cmd(hw, &cmd->header); kfree(cmd); @@ -2634,7 +2619,7 @@ static int mwl8k_cmd_set_aid(struct ieee80211_hw *hw, */ struct mwl8k_cmd_update_rateset { struct mwl8k_cmd_pkt header; - __u8 legacy_rates[MWL8K_RATE_INDEX_MAX_ARRAY]; + __u8 legacy_rates[14]; /* Bitmap for supported MCS codes. */ __u8 mcs_set[16]; @@ -2644,10 +2629,7 @@ struct mwl8k_cmd_update_rateset { static int mwl8k_update_rateset(struct ieee80211_hw *hw, struct ieee80211_vif *vif) { - struct mwl8k_vif *mv_vif = MWL8K_VIF(vif); struct mwl8k_cmd_update_rateset *cmd; - struct ieee80211_rate *bitrates = mv_vif->legacy_rates; - int count; int rc; cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); @@ -2656,9 +2638,7 @@ static int mwl8k_update_rateset(struct ieee80211_hw *hw, cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATE); cmd->header.length = cpu_to_le16(sizeof(*cmd)); - - for (count = 0; count < mv_vif->legacy_nrates; count++) - cmd->legacy_rates[count] = bitrates[count].hw_value; + memcpy(cmd->legacy_rates, mwl8k_rateids, sizeof(mwl8k_rateids)); rc = mwl8k_post_cmd(hw, &cmd->header); kfree(cmd); @@ -2931,11 +2911,6 @@ static int mwl8k_add_interface(struct ieee80211_hw *hw, /* Back pointer to parent config block */ mwl8k_vif->priv = priv; - /* Setup initial PHY parameters */ - memcpy(mwl8k_vif->legacy_rates, - priv->rates, sizeof(mwl8k_vif->legacy_rates)); - mwl8k_vif->legacy_nrates = ARRAY_SIZE(priv->rates); - /* Set Initial sequence number to zero */ mwl8k_vif->seqno = 0; From 20f09c3df7a8a623c290f62596c1a6b0da088030 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 30 Nov 2009 18:12:08 +0100 Subject: [PATCH 09/24] mwl8k: prevent corruption of QoS field on receive Packets exchanged between the mwl8k driver and the firmware always have a 4-address header without QoS field. For QoS packets, the QoS field is passed to/from the firmware via the tx/rx descriptors. We were handling this correctly on transmit, but not on receive -- if a QoS packet was received, we would leave garbage in the QoS field in the packet passed up to the stack, which is Bad(tm). Also, if the packet received on the air was a 4-address without QoS packet, we would forget to skb_pull the 2-byte DMA length prefix off. This patch adds an argument to the ->rxd_process() receive descriptor operation to retrieve the QoS field from the receive descriptor, and extends mwl8k_remove_dma_header() to insert this field back into the packet if the packet received is a QoS packet. It also fixes mwl8k_remove_dma_header() to strip off the length prefix in all cases. Signed-off-by: Lennert Buytenhek Signed-off-by: John W. Linville --- drivers/net/wireless/mwl8k.c | 46 ++++++++++++++++++++++++------------ 1 file changed, 31 insertions(+), 15 deletions(-) diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index 0251b6144f57..6b12d81ba94b 100644 --- a/drivers/net/wireless/mwl8k.c +++ b/drivers/net/wireless/mwl8k.c @@ -84,7 +84,8 @@ struct rxd_ops { int rxd_size; void (*rxd_init)(void *rxd, dma_addr_t next_dma_addr); void (*rxd_refill)(void *rxd, dma_addr_t addr, int len); - int (*rxd_process)(void *rxd, struct ieee80211_rx_status *status); + int (*rxd_process)(void *rxd, struct ieee80211_rx_status *status, + __le16 *qos); }; struct mwl8k_device_info { @@ -699,21 +700,29 @@ static inline u16 mwl8k_qos_setbit_qlen(u16 qos, u8 len) struct mwl8k_dma_data { __le16 fwlen; struct ieee80211_hdr wh; + char data[0]; } __attribute__((packed)); /* Routines to add/remove DMA header from skb. */ -static inline void mwl8k_remove_dma_header(struct sk_buff *skb) +static inline void mwl8k_remove_dma_header(struct sk_buff *skb, __le16 qos) { - struct mwl8k_dma_data *tr = (struct mwl8k_dma_data *)skb->data; - void *dst, *src = &tr->wh; - int hdrlen = ieee80211_hdrlen(tr->wh.frame_control); - u16 space = sizeof(struct mwl8k_dma_data) - hdrlen; + struct mwl8k_dma_data *tr; + int hdrlen; - dst = (void *)tr + space; - if (dst != src) { - memmove(dst, src, hdrlen); - skb_pull(skb, space); + tr = (struct mwl8k_dma_data *)skb->data; + hdrlen = ieee80211_hdrlen(tr->wh.frame_control); + + if (hdrlen != sizeof(tr->wh)) { + if (ieee80211_is_data_qos(tr->wh.frame_control)) { + memmove(tr->data - hdrlen, &tr->wh, hdrlen - 2); + *((__le16 *)(tr->data - 2)) = qos; + } else { + memmove(tr->data - hdrlen, &tr->wh, hdrlen); + } } + + if (hdrlen != sizeof(*tr)) + skb_pull(skb, sizeof(*tr) - hdrlen); } static inline void mwl8k_add_dma_header(struct sk_buff *skb) @@ -793,7 +802,8 @@ static void mwl8k_rxd_8366_refill(void *_rxd, dma_addr_t addr, int len) } static int -mwl8k_rxd_8366_process(void *_rxd, struct ieee80211_rx_status *status) +mwl8k_rxd_8366_process(void *_rxd, struct ieee80211_rx_status *status, + __le16 *qos) { struct mwl8k_rxd_8366 *rxd = _rxd; @@ -823,6 +833,8 @@ mwl8k_rxd_8366_process(void *_rxd, struct ieee80211_rx_status *status) status->band = IEEE80211_BAND_2GHZ; status->freq = ieee80211_channel_to_frequency(rxd->channel); + *qos = rxd->qos_control; + return le16_to_cpu(rxd->pkt_len); } @@ -881,7 +893,8 @@ static void mwl8k_rxd_8687_refill(void *_rxd, dma_addr_t addr, int len) } static int -mwl8k_rxd_8687_process(void *_rxd, struct ieee80211_rx_status *status) +mwl8k_rxd_8687_process(void *_rxd, struct ieee80211_rx_status *status, + __le16 *qos) { struct mwl8k_rxd_8687 *rxd = _rxd; u16 rate_info; @@ -912,6 +925,8 @@ mwl8k_rxd_8687_process(void *_rxd, struct ieee80211_rx_status *status) status->band = IEEE80211_BAND_2GHZ; status->freq = ieee80211_channel_to_frequency(rxd->channel); + *qos = rxd->qos_control; + return le16_to_cpu(rxd->pkt_len); } @@ -1083,6 +1098,7 @@ static int rxq_process(struct ieee80211_hw *hw, int index, int limit) void *rxd; int pkt_len; struct ieee80211_rx_status status; + __le16 qos; skb = rxq->buf[rxq->head].skb; if (skb == NULL) @@ -1090,7 +1106,7 @@ static int rxq_process(struct ieee80211_hw *hw, int index, int limit) rxd = rxq->rxd + (rxq->head * priv->rxd_ops->rxd_size); - pkt_len = priv->rxd_ops->rxd_process(rxd, &status); + pkt_len = priv->rxd_ops->rxd_process(rxd, &status, &qos); if (pkt_len < 0) break; @@ -1108,7 +1124,7 @@ static int rxq_process(struct ieee80211_hw *hw, int index, int limit) rxq->rxd_count--; skb_put(skb, pkt_len); - mwl8k_remove_dma_header(skb); + mwl8k_remove_dma_header(skb, qos); /* * Check for a pending join operation. Save a @@ -1354,7 +1370,7 @@ static void mwl8k_txq_reclaim(struct ieee80211_hw *hw, int index, int force) BUG_ON(skb == NULL); pci_unmap_single(priv->pdev, addr, size, PCI_DMA_TODEVICE); - mwl8k_remove_dma_header(skb); + mwl8k_remove_dma_header(skb, tx_desc->qos_control); /* Mark descriptor as unused */ tx_desc->pkt_phys_addr = 0; From ca00930153c14b323c31b97623ac5c4f7855ed6a Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 30 Nov 2009 18:12:20 +0100 Subject: [PATCH 10/24] mwl8k: fix addr4 zeroing and payload overwrite on DMA header creation When inserting a DMA header into a packet for transmission, mwl8k_add_dma_header() would blindly zero the addr4 field, which is not a good idea if the packet being transmitted is actually a 4-address packet. Also, if the transmitted packet was a 4-address with QoS packet, the memmove() to do the needed header reshuffling would inadvertently overwrite the first two bytes of the packet payload with the QoS field. This fixes both of these issues. Signed-off-by: Lennert Buytenhek Signed-off-by: John W. Linville --- drivers/net/wireless/mwl8k.c | 31 ++++++++++++++++--------------- 1 file changed, 16 insertions(+), 15 deletions(-) diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index 6b12d81ba94b..c1cb20fceaff 100644 --- a/drivers/net/wireless/mwl8k.c +++ b/drivers/net/wireless/mwl8k.c @@ -728,35 +728,36 @@ static inline void mwl8k_remove_dma_header(struct sk_buff *skb, __le16 qos) static inline void mwl8k_add_dma_header(struct sk_buff *skb) { struct ieee80211_hdr *wh; - u32 hdrlen, pktlen; + int hdrlen; struct mwl8k_dma_data *tr; - wh = (struct ieee80211_hdr *)skb->data; - hdrlen = ieee80211_hdrlen(wh->frame_control); - pktlen = skb->len; - /* - * Copy up/down the 802.11 header; the firmware requires - * we present a 2-byte payload length followed by a - * 4-address header (w/o QoS), followed (optionally) by - * any WEP/ExtIV header (but only filled in for CCMP). + * Add a firmware DMA header; the firmware requires that we + * present a 2-byte payload length followed by a 4-address + * header (without QoS field), followed (optionally) by any + * WEP/ExtIV header (but only filled in for CCMP). */ - if (hdrlen != sizeof(struct mwl8k_dma_data)) - skb_push(skb, sizeof(struct mwl8k_dma_data) - hdrlen); + wh = (struct ieee80211_hdr *)skb->data; + + hdrlen = ieee80211_hdrlen(wh->frame_control); + if (hdrlen != sizeof(*tr)) + skb_push(skb, sizeof(*tr) - hdrlen); + + if (ieee80211_is_data_qos(wh->frame_control)) + hdrlen -= 2; tr = (struct mwl8k_dma_data *)skb->data; if (wh != &tr->wh) memmove(&tr->wh, wh, hdrlen); - - /* Clear addr4 */ - memset(tr->wh.addr4, 0, ETH_ALEN); + if (hdrlen != sizeof(tr->wh)) + memset(((void *)&tr->wh) + hdrlen, 0, sizeof(tr->wh) - hdrlen); /* * Firmware length is the length of the fully formed "802.11 * payload". That is, everything except for the 802.11 header. * This includes all crypto material including the MIC. */ - tr->fwlen = cpu_to_le16(pktlen - hdrlen); + tr->fwlen = cpu_to_le16(skb->len - sizeof(*tr)); } From 8e9f33f0ced82a797d285b233e1c956cbd5c7de3 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 30 Nov 2009 18:12:35 +0100 Subject: [PATCH 11/24] mwl8k: properly report rate on received 40MHz packets On 8366, bit 6 in the rx descriptor rate field indicates whether the packet was received on a 20MHz or 40MHz channel, and is not part of the MCS index. Handle this properly, which then prevents hitting the WARN_ON and being dropped in ieee80211_rx(). Signed-off-by: Lennert Buytenhek Signed-off-by: John W. Linville --- drivers/net/wireless/mwl8k.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index c1cb20fceaff..f1566f93696e 100644 --- a/drivers/net/wireless/mwl8k.c +++ b/drivers/net/wireless/mwl8k.c @@ -782,6 +782,10 @@ struct mwl8k_rxd_8366 { __u8 rx_ctrl; } __attribute__((packed)); +#define MWL8K_8366_RATE_INFO_MCS_FORMAT 0x80 +#define MWL8K_8366_RATE_INFO_40MHZ 0x40 +#define MWL8K_8366_RATE_INFO_RATEID(x) ((x) & 0x3f) + #define MWL8K_8366_RX_CTRL_OWNED_BY_HOST 0x80 static void mwl8k_rxd_8366_init(void *_rxd, dma_addr_t next_dma_addr) @@ -817,9 +821,11 @@ mwl8k_rxd_8366_process(void *_rxd, struct ieee80211_rx_status *status, status->signal = -rxd->rssi; status->noise = -rxd->noise_floor; - if (rxd->rate & 0x80) { + if (rxd->rate & MWL8K_8366_RATE_INFO_MCS_FORMAT) { status->flag |= RX_FLAG_HT; - status->rate_idx = rxd->rate & 0x7f; + if (rxd->rate & MWL8K_8366_RATE_INFO_40MHZ) + status->flag |= RX_FLAG_40MHZ; + status->rate_idx = MWL8K_8366_RATE_INFO_RATEID(rxd->rate); } else { int i; From 0c9cc640225f4bd7c9aad87b1431bd8d9a29b338 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 30 Nov 2009 18:12:49 +0100 Subject: [PATCH 12/24] mwl8k: allow more time for firmware commands to complete Some firmware commands can under some circumstances take more than 2 seconds to complete. This patch bumps the timeout up to 10 seconds, and prints a message whenever a command takes more than 2 seconds. Signed-off-by: Lennert Buytenhek Signed-off-by: John W. Linville --- drivers/net/wireless/mwl8k.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index f1566f93696e..793a83e10e16 100644 --- a/drivers/net/wireless/mwl8k.c +++ b/drivers/net/wireless/mwl8k.c @@ -1579,8 +1579,8 @@ static void mwl8k_fw_unlock(struct ieee80211_hw *hw) * Command processing. */ -/* Timeout firmware commands after 2000ms */ -#define MWL8K_CMD_TIMEOUT_MS 2000 +/* Timeout firmware commands after 10s */ +#define MWL8K_CMD_TIMEOUT_MS 10000 static int mwl8k_post_cmd(struct ieee80211_hw *hw, struct mwl8k_cmd_pkt *cmd) { @@ -1631,12 +1631,21 @@ static int mwl8k_post_cmd(struct ieee80211_hw *hw, struct mwl8k_cmd_pkt *cmd) MWL8K_CMD_TIMEOUT_MS); rc = -ETIMEDOUT; } else { + int ms; + + ms = MWL8K_CMD_TIMEOUT_MS - jiffies_to_msecs(timeout); + rc = cmd->result ? -EINVAL : 0; if (rc) printk(KERN_ERR "%s: Command %s error 0x%x\n", wiphy_name(hw->wiphy), mwl8k_cmd_name(cmd->code, buf, sizeof(buf)), le16_to_cpu(cmd->result)); + else if (ms > 2000) + printk(KERN_NOTICE "%s: Command %s took %d ms\n", + wiphy_name(hw->wiphy), + mwl8k_cmd_name(cmd->code, buf, sizeof(buf)), + ms); } return rc; From 7e1112d34aea10fdd689422e6bdc918309043bf3 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 30 Nov 2009 18:13:04 +0100 Subject: [PATCH 13/24] mwl8k: allow more time for transmit rings to drain Before issuing any firmware commands, we wait for the transmit rings to drain, to prevent control versus data path synchronization issues. In some cases, this can end up taking longer than the current hardcoded limit of 5 seconds, for example if the transmit rings are filled with packets for a host that has dropped off the air and we end up retransmitting every pending packet at the lowest rate a couple of times. This patch changes mwl8k_tx_wait_empty() to only bail out on timeout expiry if there was no change in the number of packets pending in the transmit rings during the waiting period. If at least one transmit ring entry was reclaimed while we were waiting, we are apparently still making progress, and we'll allow waiting for another timeout period. Signed-off-by: Lennert Buytenhek Signed-off-by: John W. Linville --- drivers/net/wireless/mwl8k.c | 141 ++++++++++++++++++----------------- 1 file changed, 74 insertions(+), 67 deletions(-) diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index 793a83e10e16..a16255810d15 100644 --- a/drivers/net/wireless/mwl8k.c +++ b/drivers/net/wireless/mwl8k.c @@ -1237,99 +1237,106 @@ static inline void mwl8k_tx_start(struct mwl8k_priv *priv) ioread32(priv->regs + MWL8K_HIU_INT_CODE); } -struct mwl8k_txq_info { - u32 fw_owned; - u32 drv_owned; - u32 unused; - u32 len; - u32 head; - u32 tail; -}; - -static int mwl8k_scan_tx_ring(struct mwl8k_priv *priv, - struct mwl8k_txq_info *txinfo) +static void mwl8k_dump_tx_rings(struct ieee80211_hw *hw) { - int count, desc, status; - struct mwl8k_tx_queue *txq; - struct mwl8k_tx_desc *tx_desc; - int ndescs = 0; + struct mwl8k_priv *priv = hw->priv; + int i; - memset(txinfo, 0, MWL8K_TX_QUEUES * sizeof(struct mwl8k_txq_info)); + for (i = 0; i < MWL8K_TX_QUEUES; i++) { + struct mwl8k_tx_queue *txq = priv->txq + i; + int fw_owned = 0; + int drv_owned = 0; + int unused = 0; + int desc; - for (count = 0; count < MWL8K_TX_QUEUES; count++) { - txq = priv->txq + count; - txinfo[count].len = txq->stats.len; - txinfo[count].head = txq->head; - txinfo[count].tail = txq->tail; for (desc = 0; desc < MWL8K_TX_DESCS; desc++) { - tx_desc = txq->txd + desc; - status = le32_to_cpu(tx_desc->status); + struct mwl8k_tx_desc *tx_desc = txq->txd + desc; + u32 status; + status = le32_to_cpu(tx_desc->status); if (status & MWL8K_TXD_STATUS_FW_OWNED) - txinfo[count].fw_owned++; + fw_owned++; else - txinfo[count].drv_owned++; + drv_owned++; if (tx_desc->pkt_len == 0) - txinfo[count].unused++; + unused++; } - } - return ndescs; + printk(KERN_ERR "%s: txq[%d] len=%d head=%d tail=%d " + "fw_owned=%d drv_owned=%d unused=%d\n", + wiphy_name(hw->wiphy), i, + txq->stats.len, txq->head, txq->tail, + fw_owned, drv_owned, unused); + } } /* * Must be called with priv->fw_mutex held and tx queues stopped. */ +#define MWL8K_TX_WAIT_TIMEOUT_MS 1000 + static int mwl8k_tx_wait_empty(struct ieee80211_hw *hw) { struct mwl8k_priv *priv = hw->priv; DECLARE_COMPLETION_ONSTACK(tx_wait); - u32 count; - unsigned long timeout; + int retry; + int rc; might_sleep(); + /* + * The TX queues are stopped at this point, so this test + * doesn't need to take ->tx_lock. + */ + if (!priv->pending_tx_pkts) + return 0; + + retry = 0; + rc = 0; + spin_lock_bh(&priv->tx_lock); - count = priv->pending_tx_pkts; - if (count) - priv->tx_wait = &tx_wait; + priv->tx_wait = &tx_wait; + while (!rc) { + int oldcount; + unsigned long timeout; + + oldcount = priv->pending_tx_pkts; + + spin_unlock_bh(&priv->tx_lock); + timeout = wait_for_completion_timeout(&tx_wait, + msecs_to_jiffies(MWL8K_TX_WAIT_TIMEOUT_MS)); + spin_lock_bh(&priv->tx_lock); + + if (timeout) { + WARN_ON(priv->pending_tx_pkts); + if (retry) { + printk(KERN_NOTICE "%s: tx rings drained\n", + wiphy_name(hw->wiphy)); + } + break; + } + + if (priv->pending_tx_pkts < oldcount) { + printk(KERN_NOTICE "%s: timeout waiting for tx " + "rings to drain (%d -> %d pkts), retrying\n", + wiphy_name(hw->wiphy), oldcount, + priv->pending_tx_pkts); + retry = 1; + continue; + } + + priv->tx_wait = NULL; + + printk(KERN_ERR "%s: tx rings stuck for %d ms\n", + wiphy_name(hw->wiphy), MWL8K_TX_WAIT_TIMEOUT_MS); + mwl8k_dump_tx_rings(hw); + + rc = -ETIMEDOUT; + } spin_unlock_bh(&priv->tx_lock); - if (count) { - struct mwl8k_txq_info txinfo[MWL8K_TX_QUEUES]; - int index; - int newcount; - - timeout = wait_for_completion_timeout(&tx_wait, - msecs_to_jiffies(5000)); - if (timeout) - return 0; - - spin_lock_bh(&priv->tx_lock); - priv->tx_wait = NULL; - newcount = priv->pending_tx_pkts; - mwl8k_scan_tx_ring(priv, txinfo); - spin_unlock_bh(&priv->tx_lock); - - printk(KERN_ERR "%s(%u) TIMEDOUT:5000ms Pend:%u-->%u\n", - __func__, __LINE__, count, newcount); - - for (index = 0; index < MWL8K_TX_QUEUES; index++) - printk(KERN_ERR "TXQ:%u L:%u H:%u T:%u FW:%u " - "DRV:%u U:%u\n", - index, - txinfo[index].len, - txinfo[index].head, - txinfo[index].tail, - txinfo[index].fw_owned, - txinfo[index].drv_owned, - txinfo[index].unused); - - return -ETIMEDOUT; - } - - return 0; + return rc; } #define MWL8K_TXD_SUCCESS(status) \ From 89b872e2e476833cde8aaac658c75817f67e8f81 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 30 Nov 2009 18:13:20 +0100 Subject: [PATCH 14/24] mwl8k: increase firmware loading timeouts The time between loading the helper image and starting to upload the main firmware image should be at least 5 ms or so. We were doing an msleep(1) before, and 1 ms appears to not be enough in almost all cases, but building with HZ=100 has always masked this so far. Bumping the msleep argument to 5 fixes firmware loading e.g. when HZ=1000. Some firmware images need more than 200ms to initialize. Bump the ready code timeout to 500ms to accommodate for this. Signed-off-by: Lennert Buytenhek Signed-off-by: John W. Linville --- drivers/net/wireless/mwl8k.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index a16255810d15..e59a92618807 100644 --- a/drivers/net/wireless/mwl8k.c +++ b/drivers/net/wireless/mwl8k.c @@ -571,7 +571,7 @@ static int mwl8k_load_firmware(struct ieee80211_hw *hw) "helper image\n", pci_name(priv->pdev)); return rc; } - msleep(1); + msleep(5); rc = mwl8k_feed_fw_image(priv, fw->data, fw->size); } else { @@ -588,9 +588,8 @@ static int mwl8k_load_firmware(struct ieee80211_hw *hw) iowrite32(MWL8K_MODE_AP, priv->regs + MWL8K_HIU_GEN_PTR); else iowrite32(MWL8K_MODE_STA, priv->regs + MWL8K_HIU_GEN_PTR); - msleep(1); - loops = 200000; + loops = 500000; do { u32 ready_code; From 3db95e50c8813d8ed04a1ec7cd7b77dba7c81c80 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 30 Nov 2009 18:13:34 +0100 Subject: [PATCH 15/24] mwl8k: don't forget to call pci_disable_device() Don't forget to call pci_disable_device() if pci_request_regions() fails during probe. Signed-off-by: Lennert Buytenhek Signed-off-by: John W. Linville --- drivers/net/wireless/mwl8k.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index e59a92618807..76a6071aac8a 100644 --- a/drivers/net/wireless/mwl8k.c +++ b/drivers/net/wireless/mwl8k.c @@ -3378,7 +3378,7 @@ static int __devinit mwl8k_probe(struct pci_dev *pdev, if (rc) { printk(KERN_ERR "%s: Cannot obtain PCI resources\n", MWL8K_NAME); - return rc; + goto err_disable_device; } pci_set_master(pdev); @@ -3609,6 +3609,8 @@ err_iounmap: err_free_reg: pci_release_regions(pdev); + +err_disable_device: pci_disable_device(pdev); return rc; From d8a8dd8f07aed82492c089ad13fd3d7476b692fd Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 30 Nov 2009 18:13:42 +0100 Subject: [PATCH 16/24] mwl8k: struct ieee80211_rx_status::qual is deprecated Signed-off-by: Lennert Buytenhek Signed-off-by: John W. Linville --- drivers/net/wireless/mwl8k.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index 76a6071aac8a..2e9da9aa38e7 100644 --- a/drivers/net/wireless/mwl8k.c +++ b/drivers/net/wireless/mwl8k.c @@ -915,7 +915,6 @@ mwl8k_rxd_8687_process(void *_rxd, struct ieee80211_rx_status *status, status->signal = -rxd->rssi; status->noise = -rxd->noise_level; - status->qual = rxd->link_quality; status->antenna = MWL8K_8687_RATE_INFO_ANTSELECT(rate_info); status->rate_idx = MWL8K_8687_RATE_INFO_RATEID(rate_info); From d1844d77692de3158ad458ed4c7b86d78ab4085e Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 30 Nov 2009 18:13:56 +0100 Subject: [PATCH 17/24] mwl8k: don't overwrite mwl8k_vif::bssid until after disassociation When disassociating, mac80211 zeroes vif->bss_info.bssid before calling our ->bss_info_changed(), but we need the BSSID to remove the hardware station database entry for our AP, so we can't clear our local copy of the BSSID until after we've done that. Signed-off-by: Lennert Buytenhek Signed-off-by: John W. Linville --- drivers/net/wireless/mwl8k.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index 2e9da9aa38e7..ea1173fd598c 100644 --- a/drivers/net/wireless/mwl8k.c +++ b/drivers/net/wireless/mwl8k.c @@ -3025,9 +3025,6 @@ static void mwl8k_bss_info_changed(struct ieee80211_hw *hw, struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif); int rc; - if (changed & BSS_CHANGED_BSSID) - memcpy(mwl8k_vif->bssid, info->bssid, ETH_ALEN); - if ((changed & BSS_CHANGED_ASSOC) == 0) return; @@ -3041,6 +3038,8 @@ static void mwl8k_bss_info_changed(struct ieee80211_hw *hw, memcpy(&mwl8k_vif->bss_info, info, sizeof(struct ieee80211_bss_conf)); + memcpy(mwl8k_vif->bssid, info->bssid, ETH_ALEN); + /* Install rates */ rc = mwl8k_update_rateset(hw, vif); if (rc) From 16cec43da50c4b4702653ca710549fd3457a4e6c Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 30 Nov 2009 18:14:23 +0100 Subject: [PATCH 18/24] mwl8k: don't complain about oversized beacons in FINALIZE_JOIN The FINALIZE_JOIN firmware command only looks at the first couple of fields in the beacon, and therefore it's not necessary to complain if the beacon is longer than 128 bytes. Signed-off-by: Lennert Buytenhek Signed-off-by: John W. Linville --- drivers/net/wireless/mwl8k.c | 29 ++++++++--------------------- 1 file changed, 8 insertions(+), 21 deletions(-) diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index ea1173fd598c..59d49159cf2a 100644 --- a/drivers/net/wireless/mwl8k.c +++ b/drivers/net/wireless/mwl8k.c @@ -2469,8 +2469,6 @@ mwl8k_set_edca_params(struct ieee80211_hw *hw, __u8 qnum, /* * CMD_FINALIZE_JOIN. */ - -/* FJ beacon buffer size is compiled into the firmware. */ #define MWL8K_FJ_BEACON_MAXLEN 128 struct mwl8k_cmd_finalize_join { @@ -2480,17 +2478,13 @@ struct mwl8k_cmd_finalize_join { } __attribute__((packed)); static int mwl8k_finalize_join(struct ieee80211_hw *hw, void *frame, - __u16 framelen, __u16 dtim) + int framelen, int dtim) { struct mwl8k_cmd_finalize_join *cmd; struct ieee80211_mgmt *payload = frame; - u16 hdrlen; - u32 payload_len; + int payload_len; int rc; - if (frame == NULL) - return -EINVAL; - cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); if (cmd == NULL) return -ENOMEM; @@ -2499,24 +2493,17 @@ static int mwl8k_finalize_join(struct ieee80211_hw *hw, void *frame, cmd->header.length = cpu_to_le16(sizeof(*cmd)); cmd->sleep_interval = cpu_to_le32(dtim ? dtim : 1); - hdrlen = ieee80211_hdrlen(payload->frame_control); - - payload_len = framelen > hdrlen ? framelen - hdrlen : 0; - - /* XXX TBD Might just have to abort and return an error */ - if (payload_len > MWL8K_FJ_BEACON_MAXLEN) - printk(KERN_ERR "%s(): WARNING: Incomplete beacon " - "sent to firmware. Sz=%u MAX=%u\n", __func__, - payload_len, MWL8K_FJ_BEACON_MAXLEN); - - if (payload_len > MWL8K_FJ_BEACON_MAXLEN) + payload_len = framelen - ieee80211_hdrlen(payload->frame_control); + if (payload_len < 0) + payload_len = 0; + else if (payload_len > MWL8K_FJ_BEACON_MAXLEN) payload_len = MWL8K_FJ_BEACON_MAXLEN; - if (payload && payload_len) - memcpy(cmd->beacon_data, &payload->u.beacon, payload_len); + memcpy(cmd->beacon_data, &payload->u.beacon, payload_len); rc = mwl8k_post_cmd(hw, &cmd->header); kfree(cmd); + return rc; } From 02f7f1793023bd8e5e277ad349f6f43f8c284fb0 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Thu, 3 Dec 2009 20:45:07 -0800 Subject: [PATCH 19/24] net/rfkill/core.c: work around gcc-4.0.2 silliness net/rfkill/core.c: In function 'rfkill_type_show': net/rfkill/core.c:610: warning: control may reach end of non-void function 'rfkill_get_type_str' being inlined A gcc bug, but simple enough to squish. Cc: John W. Linville Cc: Johannes Berg Cc: David S. Miller Signed-off-by: Andrew Morton Signed-off-by: John W. Linville --- net/rfkill/core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/rfkill/core.c b/net/rfkill/core.c index 448e5a0fcc2e..c218e07e5caf 100644 --- a/net/rfkill/core.c +++ b/net/rfkill/core.c @@ -579,6 +579,8 @@ static ssize_t rfkill_name_show(struct device *dev, static const char *rfkill_get_type_str(enum rfkill_type type) { + BUILD_BUG_ON(NUM_RFKILL_TYPES != RFKILL_TYPE_FM + 1); + switch (type) { case RFKILL_TYPE_WLAN: return "wlan"; @@ -597,8 +599,6 @@ static const char *rfkill_get_type_str(enum rfkill_type type) default: BUG(); } - - BUILD_BUG_ON(NUM_RFKILL_TYPES != RFKILL_TYPE_FM + 1); } static ssize_t rfkill_type_show(struct device *dev, From 1814077fd12a9cdf478c10076e9c42094e9d9250 Mon Sep 17 00:00:00 2001 From: Vasanthakumar Thiagarajan Date: Fri, 4 Dec 2009 17:41:34 +0530 Subject: [PATCH 20/24] mac80211: Fix bug in computing crc over dynamic IEs in beacon On a 32-bit machine, BIT() macro does not give the required bit value if the bit is mroe than 31. In ieee802_11_parse_elems_crc(), BIT() is suppossed to get the bit value more than 31 (42 (id of ERP_INFO_IE), 37 (CHANNEL_SWITCH_IE), (42), 32 (POWER_CONSTRAINT_IE), 45 (HT_CAP_IE), 61 (HT_INFO_IE)). As we do not get the required bit value for the above IEs, crc over these IEs are never calculated, so any dynamic change in these IEs after the association is not really handled on 32-bit platforms. This patch fixes this issue. Cc: stable@kernel.org Signed-off-by: Vasanthakumar Thiagarajan Signed-off-by: John W. Linville --- net/mac80211/util.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/mac80211/util.c b/net/mac80211/util.c index d09f78bb2442..78a6e924c7e1 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -579,7 +579,7 @@ u32 ieee802_11_parse_elems_crc(u8 *start, size_t len, if (elen > left) break; - if (calc_crc && id < 64 && (filter & BIT(id))) + if (calc_crc && id < 64 && (filter & (1ULL << id))) crc = crc32_be(crc, pos - 2, elen + 2); switch (id) { From 815833e7ecf0b9a017315cae6aef4d7cd9517681 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sat, 5 Dec 2009 18:08:05 +0100 Subject: [PATCH 21/24] ath9k: fix tx status reporting This patch fixes a bug in ath9k's tx status check, which caused mac80211 to consider regularly transmitted unicast frames as un-acked. When checking the ts_status field for errors, it needs to be masked with ATH9K_TXERR_FILT, because this field also contains other fields like ATH9K_TX_ACKED. Without this patch, AP mode is pretty much unusable, as hostapd checks the ACK status for the frames that it injects. Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/xmit.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index 564c6cb1c2b4..2a11cc57ceea 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -2078,7 +2078,7 @@ static void ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq) &txq->axq_q, lastbf->list.prev); txq->axq_depth--; - txok = (ds->ds_txstat.ts_status == 0); + txok = !(ds->ds_txstat.ts_status & ATH9K_TXERR_FILT); txq->axq_tx_inprogress = false; spin_unlock_bh(&txq->axq_lock); From 70d57139f932b9ca21026253d02af71cf53d764a Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Sat, 5 Dec 2009 19:25:22 -0600 Subject: [PATCH 22/24] rtl8187: Fix wrong rfkill switch mask for some models MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit There are different bits used to convey the setting of the rfkill switch to the driver. The current driver only supports one of these possibilities. These changes were derived from the latest version of the vendor driver. This patch fixes the regression noted in kernel Bugzilla #14743. Signed-off-by: Larry Finger Reported-and-tested-by: Antti Kaijanmäki Tested-by: Hin-Tak Leung Cc: Stable Signed-off-by: John W. Linville --- drivers/net/wireless/rtl818x/rtl8187.h | 5 +++++ drivers/net/wireless/rtl818x/rtl8187_dev.c | 12 ++++++++++-- drivers/net/wireless/rtl818x/rtl8187_rfkill.c | 4 ++-- 3 files changed, 17 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/rtl818x/rtl8187.h b/drivers/net/wireless/rtl818x/rtl8187.h index abb4907cf296..b1a24de0b7b0 100644 --- a/drivers/net/wireless/rtl818x/rtl8187.h +++ b/drivers/net/wireless/rtl818x/rtl8187.h @@ -23,6 +23,7 @@ #define RTL8187_EEPROM_TXPWR_CHAN_1 0x16 /* 3 channels */ #define RTL8187_EEPROM_TXPWR_CHAN_6 0x1B /* 2 channels */ #define RTL8187_EEPROM_TXPWR_CHAN_4 0x3D /* 2 channels */ +#define RTL8187_EEPROM_SELECT_GPIO 0x3B #define RTL8187_REQT_READ 0xC0 #define RTL8187_REQT_WRITE 0x40 @@ -31,6 +32,9 @@ #define RTL8187_MAX_RX 0x9C4 +#define RFKILL_MASK_8187_89_97 0x2 +#define RFKILL_MASK_8198 0x4 + struct rtl8187_rx_info { struct urb *urb; struct ieee80211_hw *dev; @@ -122,6 +126,7 @@ struct rtl8187_priv { u8 noise; u8 slot_time; u8 aifsn[4]; + u8 rfkill_mask; struct { __le64 buf; struct sk_buff_head queue; diff --git a/drivers/net/wireless/rtl818x/rtl8187_dev.c b/drivers/net/wireless/rtl818x/rtl8187_dev.c index 76973b8c7099..bc5726dd5fe4 100644 --- a/drivers/net/wireless/rtl818x/rtl8187_dev.c +++ b/drivers/net/wireless/rtl818x/rtl8187_dev.c @@ -1322,6 +1322,7 @@ static int __devinit rtl8187_probe(struct usb_interface *intf, struct ieee80211_channel *channel; const char *chip_name; u16 txpwr, reg; + u16 product_id = le16_to_cpu(udev->descriptor.idProduct); int err, i; dev = ieee80211_alloc_hw(sizeof(*priv), &rtl8187_ops); @@ -1481,6 +1482,13 @@ static int __devinit rtl8187_probe(struct usb_interface *intf, (*channel++).hw_value = txpwr & 0xFF; (*channel++).hw_value = txpwr >> 8; } + /* Handle the differing rfkill GPIO bit in different models */ + priv->rfkill_mask = RFKILL_MASK_8187_89_97; + if (product_id == 0x8197 || product_id == 0x8198) { + eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_SELECT_GPIO, ®); + if (reg & 0xFF00) + priv->rfkill_mask = RFKILL_MASK_8198; + } /* * XXX: Once this driver supports anything that requires @@ -1509,9 +1517,9 @@ static int __devinit rtl8187_probe(struct usb_interface *intf, mutex_init(&priv->conf_mutex); skb_queue_head_init(&priv->b_tx_status.queue); - printk(KERN_INFO "%s: hwaddr %pM, %s V%d + %s\n", + printk(KERN_INFO "%s: hwaddr %pM, %s V%d + %s, rfkill mask %d\n", wiphy_name(dev->wiphy), dev->wiphy->perm_addr, - chip_name, priv->asic_rev, priv->rf->name); + chip_name, priv->asic_rev, priv->rf->name, priv->rfkill_mask); #ifdef CONFIG_RTL8187_LEDS eeprom_93cx6_read(&eeprom, 0x3F, ®); diff --git a/drivers/net/wireless/rtl818x/rtl8187_rfkill.c b/drivers/net/wireless/rtl818x/rtl8187_rfkill.c index cad8037ab2af..03555e1e0cab 100644 --- a/drivers/net/wireless/rtl818x/rtl8187_rfkill.c +++ b/drivers/net/wireless/rtl818x/rtl8187_rfkill.c @@ -25,10 +25,10 @@ static bool rtl8187_is_radio_enabled(struct rtl8187_priv *priv) u8 gpio; gpio = rtl818x_ioread8(priv, &priv->map->GPIO0); - rtl818x_iowrite8(priv, &priv->map->GPIO0, gpio & ~0x02); + rtl818x_iowrite8(priv, &priv->map->GPIO0, gpio & ~priv->rfkill_mask); gpio = rtl818x_ioread8(priv, &priv->map->GPIO1); - return gpio & 0x02; + return gpio & priv->rfkill_mask; } void rtl8187_rfkill_init(struct ieee80211_hw *hw) From a589296a3592c8879cef8fd13518fed18c5fa5a3 Mon Sep 17 00:00:00 2001 From: David Kilroy Date: Sun, 6 Dec 2009 19:28:47 +0000 Subject: [PATCH 23/24] orinoco: remove spare KERN_DEBUG A KERN_DEBUG didn't get removed when transitioning from printk to pr_debug Signed-off-by: David Kilroy Signed-off-by: John W. Linville --- drivers/net/wireless/orinoco/hermes_dld.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/orinoco/hermes_dld.c b/drivers/net/wireless/orinoco/hermes_dld.c index a3eefe109df4..6d5660defd87 100644 --- a/drivers/net/wireless/orinoco/hermes_dld.c +++ b/drivers/net/wireless/orinoco/hermes_dld.c @@ -427,7 +427,7 @@ int hermesi_program_init(hermes_t *hw, u32 offset) if (err) return err; - pr_debug(KERN_DEBUG PFX "Enabling volatile, EP 0x%08x\n", offset); + pr_debug(PFX "Enabling volatile, EP 0x%08x\n", offset); err = hermes_doicmd_wait(hw, HERMES_PROGRAM_ENABLE_VOLATILE, offset & 0xFFFFu, From 6a213afd058436dbbd01098d7422c6a0073c39b5 Mon Sep 17 00:00:00 2001 From: Shahar Or Date: Mon, 7 Dec 2009 12:05:54 +0200 Subject: [PATCH 24/24] ath5k: add support for Dell Vostro A860 LED Adds support for the WiFi activity LED on the Dell Vostro A860 laptop. Signed-off-by: Shahar Or Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath5k/led.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/wireless/ath/ath5k/led.c b/drivers/net/wireless/ath/ath5k/led.c index d495890355d9..60f547503d75 100644 --- a/drivers/net/wireless/ath/ath5k/led.c +++ b/drivers/net/wireless/ath/ath5k/led.c @@ -79,6 +79,8 @@ static const struct pci_device_id ath5k_led_devices[] = { { ATH_SDEVICE(PCI_VENDOR_ID_HP, 0x0137b), ATH_LED(3, 1) }, /* IBM-specific AR5212 (all others) */ { PCI_VDEVICE(ATHEROS, PCI_DEVICE_ID_ATHEROS_AR5212_IBM), ATH_LED(0, 0) }, + /* Dell Vostro A860 (shahar@shahar-or.co.il) */ + { ATH_SDEVICE(PCI_VENDOR_ID_QMI, 0x0112), ATH_LED(3, 0) }, { } };