From 9b1cb21c36b39057ec28a8b551f301449e5c51bb Mon Sep 17 00:00:00 2001 From: "John W. Linville" Date: Mon, 7 Dec 2009 16:37:42 -0500 Subject: 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 58b132f9cf2..00da5e152d4 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; } -- cgit v1.2.3-70-g09d2 From e84217a9fc6264fe4e73fc85cdfff185b71b7443 Mon Sep 17 00:00:00 2001 From: Kalle Valo Date: Thu, 26 Nov 2009 10:55:55 +0200 Subject: 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 ff4be7bf5d3..8353139d85d 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; } } -- cgit v1.2.3-70-g09d2 From de8df1ea489d80106ea82d4a6323e83d376913fb Mon Sep 17 00:00:00 2001 From: Kalle Valo Date: Thu, 26 Nov 2009 10:56:06 +0200 Subject: 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 8353139d85d..50d17fc0078 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, -- cgit v1.2.3-70-g09d2 From c14589eb3080636a2f71ebaf21ab9fd70ffc20cc Mon Sep 17 00:00:00 2001 From: Kalle Valo Date: Thu, 26 Nov 2009 10:56:13 +0200 Subject: 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 50d17fc0078..2f50a256efa 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"); -- cgit v1.2.3-70-g09d2 From bc83b6819289c031c439a5aa18ba0fd539d14f3e Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Sun, 29 Nov 2009 12:19:06 +0100 Subject: 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 6dc7b5ad9a4..d8d50fb5e82 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; } -- cgit v1.2.3-70-g09d2 From 7c3f4bbedc241ddcd3abe1f419c356e625231da1 Mon Sep 17 00:00:00 2001 From: Vivek Natarajan Date: Mon, 30 Nov 2009 16:50:53 +0530 Subject: 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 419f186cfcf..91dc8636d64 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 4cf387c944b..f1a4c716030 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)); } } -- cgit v1.2.3-70-g09d2 From 0b5351a8e86292dfac1ca1451deaadb416a33cb8 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 30 Nov 2009 18:11:18 +0100 Subject: 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 0cb5ecc822a..f93eddda9c0 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, -- cgit v1.2.3-70-g09d2 From 140eb5e2c1978622d7cd979d59a1c0586fe3bbdb Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 30 Nov 2009 18:11:44 +0100 Subject: 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 f93eddda9c0..0251b6144f5 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; -- cgit v1.2.3-70-g09d2 From 20f09c3df7a8a623c290f62596c1a6b0da088030 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 30 Nov 2009 18:12:08 +0100 Subject: 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 0251b6144f5..6b12d81ba94 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; + + tr = (struct mwl8k_dma_data *)skb->data; + hdrlen = ieee80211_hdrlen(tr->wh.frame_control); - dst = (void *)tr + space; - if (dst != src) { - memmove(dst, src, hdrlen); - skb_pull(skb, space); + 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; -- cgit v1.2.3-70-g09d2 From ca00930153c14b323c31b97623ac5c4f7855ed6a Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 30 Nov 2009 18:12:20 +0100 Subject: 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 | 29 +++++++++++++++-------------- 1 file changed, 15 insertions(+), 14 deletions(-) diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index 6b12d81ba94..c1cb20fceaf 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; + /* + * 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). + */ wh = (struct ieee80211_hdr *)skb->data; + hdrlen = ieee80211_hdrlen(wh->frame_control); - pktlen = skb->len; + if (hdrlen != sizeof(*tr)) + skb_push(skb, sizeof(*tr) - hdrlen); - /* - * 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). - */ - if (hdrlen != sizeof(struct mwl8k_dma_data)) - skb_push(skb, sizeof(struct mwl8k_dma_data) - 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)); } -- cgit v1.2.3-70-g09d2 From 8e9f33f0ced82a797d285b233e1c956cbd5c7de3 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 30 Nov 2009 18:12:35 +0100 Subject: 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 c1cb20fceaf..f1566f93696 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; -- cgit v1.2.3-70-g09d2 From 0c9cc640225f4bd7c9aad87b1431bd8d9a29b338 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 30 Nov 2009 18:12:49 +0100 Subject: 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 f1566f93696..793a83e10e1 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; -- cgit v1.2.3-70-g09d2 From 7e1112d34aea10fdd689422e6bdc918309043bf3 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 30 Nov 2009 18:13:04 +0100 Subject: 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 | 127 +++++++++++++++++++++++-------------------- 1 file changed, 67 insertions(+), 60 deletions(-) diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index 793a83e10e1..a16255810d1 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; - spin_unlock_bh(&priv->tx_lock); + priv->tx_wait = &tx_wait; + while (!rc) { + int oldcount; + unsigned long timeout; - if (count) { - struct mwl8k_txq_info txinfo[MWL8K_TX_QUEUES]; - int index; - int newcount; + oldcount = priv->pending_tx_pkts; + spin_unlock_bh(&priv->tx_lock); timeout = wait_for_completion_timeout(&tx_wait, - msecs_to_jiffies(5000)); - if (timeout) - return 0; - + msecs_to_jiffies(MWL8K_TX_WAIT_TIMEOUT_MS)); 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); + if (timeout) { + WARN_ON(priv->pending_tx_pkts); + if (retry) { + printk(KERN_NOTICE "%s: tx rings drained\n", + wiphy_name(hw->wiphy)); + } + break; + } - 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); + 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); - return -ETIMEDOUT; + rc = -ETIMEDOUT; } + spin_unlock_bh(&priv->tx_lock); - return 0; + return rc; } #define MWL8K_TXD_SUCCESS(status) \ -- cgit v1.2.3-70-g09d2 From 89b872e2e476833cde8aaac658c75817f67e8f81 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 30 Nov 2009 18:13:20 +0100 Subject: 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 a16255810d1..e59a9261880 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; -- cgit v1.2.3-70-g09d2 From 3db95e50c8813d8ed04a1ec7cd7b77dba7c81c80 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 30 Nov 2009 18:13:34 +0100 Subject: 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 e59a9261880..76a6071aac8 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; -- cgit v1.2.3-70-g09d2 From d8a8dd8f07aed82492c089ad13fd3d7476b692fd Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 30 Nov 2009 18:13:42 +0100 Subject: 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 76a6071aac8..2e9da9aa38e 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); -- cgit v1.2.3-70-g09d2 From d1844d77692de3158ad458ed4c7b86d78ab4085e Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 30 Nov 2009 18:13:56 +0100 Subject: 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 2e9da9aa38e..ea1173fd598 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) -- cgit v1.2.3-70-g09d2 From 16cec43da50c4b4702653ca710549fd3457a4e6c Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Mon, 30 Nov 2009 18:14:23 +0100 Subject: 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 ea1173fd598..59d49159cf2 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; } -- cgit v1.2.3-70-g09d2 From 02f7f1793023bd8e5e277ad349f6f43f8c284fb0 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Thu, 3 Dec 2009 20:45:07 -0800 Subject: 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 448e5a0fcc2..c218e07e5ca 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, -- cgit v1.2.3-70-g09d2 From 1814077fd12a9cdf478c10076e9c42094e9d9250 Mon Sep 17 00:00:00 2001 From: Vasanthakumar Thiagarajan Date: Fri, 4 Dec 2009 17:41:34 +0530 Subject: 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 d09f78bb244..78a6e924c7e 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) { -- cgit v1.2.3-70-g09d2 From 815833e7ecf0b9a017315cae6aef4d7cd9517681 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sat, 5 Dec 2009 18:08:05 +0100 Subject: 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 564c6cb1c2b..2a11cc57cee 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); -- cgit v1.2.3-70-g09d2 From 70d57139f932b9ca21026253d02af71cf53d764a Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Sat, 5 Dec 2009 19:25:22 -0600 Subject: 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 abb4907cf29..b1a24de0b7b 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 76973b8c709..bc5726dd5fe 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 cad8037ab2a..03555e1e0ca 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) -- cgit v1.2.3-70-g09d2 From a589296a3592c8879cef8fd13518fed18c5fa5a3 Mon Sep 17 00:00:00 2001 From: David Kilroy Date: Sun, 6 Dec 2009 19:28:47 +0000 Subject: 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 a3eefe109df..6d5660defd8 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, -- cgit v1.2.3-70-g09d2 From 6a213afd058436dbbd01098d7422c6a0073c39b5 Mon Sep 17 00:00:00 2001 From: Shahar Or Date: Mon, 7 Dec 2009 12:05:54 +0200 Subject: 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 d495890355d..60f547503d7 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) }, { } }; -- cgit v1.2.3-70-g09d2 From 3dc789320e1b310cb505dcd94512c279abcd5e1c Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 8 Dec 2009 20:07:54 -0800 Subject: tcp: Remove runtime check that can never be true. GCC even warns about it, as reported by Andrew Morton: net/ipv4/tcp.c: In function 'do_tcp_getsockopt': net/ipv4/tcp.c:2544: warning: comparison is always false due to limited range of data type Signed-off-by: David S. Miller --- net/ipv4/tcp.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index c8666b70cde..b0a26bb25e2 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -2540,11 +2540,6 @@ static int do_tcp_getsockopt(struct sock *sk, int level, ctd.tcpct_cookie_desired = cvp->cookie_desired; ctd.tcpct_s_data_desired = cvp->s_data_desired; - /* Cookie(s) saved, return as nonce */ - if (sizeof(ctd.tcpct_value) < cvp->cookie_pair_size) { - /* impossible? */ - return -EINVAL; - } memcpy(&ctd.tcpct_value[0], &cvp->cookie_pair[0], cvp->cookie_pair_size); ctd.tcpct_used = cvp->cookie_pair_size; -- cgit v1.2.3-70-g09d2 From 93a23f48df9c0111283302acd2a4ed2ef1d86453 Mon Sep 17 00:00:00 2001 From: Bruce Allan Date: Tue, 8 Dec 2009 07:27:41 +0000 Subject: e1000e: minor correction to name of bit in CTRL_EXT register Bit 7 in the CTRL_REG register is actually the Software Definable Pin 3, not the Software Definable Pin 7. Signed-off-by: Bruce Allan Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/e1000e/defines.h | 2 +- drivers/net/e1000e/netdev.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/e1000e/defines.h b/drivers/net/e1000e/defines.h index 86d2809763c..e02e38221ed 100644 --- a/drivers/net/e1000e/defines.h +++ b/drivers/net/e1000e/defines.h @@ -74,7 +74,7 @@ #define E1000_WUS_BC E1000_WUFC_BC /* Extended Device Control */ -#define E1000_CTRL_EXT_SDP7_DATA 0x00000080 /* Value of SW Definable Pin 7 */ +#define E1000_CTRL_EXT_SDP3_DATA 0x00000080 /* Value of SW Definable Pin 3 */ #define E1000_CTRL_EXT_EE_RST 0x00002000 /* Reinitialize from EEPROM */ #define E1000_CTRL_EXT_SPD_BYPS 0x00008000 /* Speed Select Bypass */ #define E1000_CTRL_EXT_RO_DIS 0x00020000 /* Relaxed Ordering disable */ diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c index c3105c5087e..762b697ce73 100644 --- a/drivers/net/e1000e/netdev.c +++ b/drivers/net/e1000e/netdev.c @@ -4541,7 +4541,7 @@ static int __e1000_shutdown(struct pci_dev *pdev, bool *enable_wake) e1000_media_type_internal_serdes) { /* keep the laser running in D3 */ ctrl_ext = er32(CTRL_EXT); - ctrl_ext |= E1000_CTRL_EXT_SDP7_DATA; + ctrl_ext |= E1000_CTRL_EXT_SDP3_DATA; ew32(CTRL_EXT, ctrl_ext); } -- cgit v1.2.3-70-g09d2 From 0781895067444db98050a1537bafbc7a0235ec9f Mon Sep 17 00:00:00 2001 From: Bruce Allan Date: Tue, 8 Dec 2009 07:28:01 +0000 Subject: e1000e: replace incorrect use of GG82563_REG macro The GG82563_REG() macro should not be used to determine the offset provided to the e1000e_[read|write]_kmrn_reg() functions since the first argument to the macro is already implied and gets masked off anyway in the functions. The resultant register reads/writes with this patch are functionally the same as before. Signed-off-by: Bruce Allan Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/e1000e/hw.h | 2 ++ drivers/net/e1000e/ich8lan.c | 8 +++++--- 2 files changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/net/e1000e/hw.h b/drivers/net/e1000e/hw.h index a7d08dae79c..5ed17889e64 100644 --- a/drivers/net/e1000e/hw.h +++ b/drivers/net/e1000e/hw.h @@ -302,6 +302,8 @@ enum e1e_registers { #define E1000_KMRNCTRLSTA_OFFSET_SHIFT 16 #define E1000_KMRNCTRLSTA_REN 0x00200000 #define E1000_KMRNCTRLSTA_DIAG_OFFSET 0x3 /* Kumeran Diagnostic */ +#define E1000_KMRNCTRLSTA_TIMEOUTS 0x4 /* Kumeran Timeouts */ +#define E1000_KMRNCTRLSTA_INBAND_PARAM 0x9 /* Kumeran InBand Parameters */ #define E1000_KMRNCTRLSTA_DIAG_NELPBK 0x1000 /* Nearend Loopback mode */ #define E1000_KMRNCTRLSTA_K1_CONFIG 0x7 #define E1000_KMRNCTRLSTA_K1_ENABLE 0x140E diff --git a/drivers/net/e1000e/ich8lan.c b/drivers/net/e1000e/ich8lan.c index 7b33be98a2c..9b09246af06 100644 --- a/drivers/net/e1000e/ich8lan.c +++ b/drivers/net/e1000e/ich8lan.c @@ -2755,14 +2755,16 @@ static s32 e1000_setup_copper_link_ich8lan(struct e1000_hw *hw) * and increase the max iterations when polling the phy; * this fixes erroneous timeouts at 10Mbps. */ - ret_val = e1000e_write_kmrn_reg(hw, GG82563_REG(0x34, 4), 0xFFFF); + ret_val = e1000e_write_kmrn_reg(hw, E1000_KMRNCTRLSTA_TIMEOUTS, 0xFFFF); if (ret_val) return ret_val; - ret_val = e1000e_read_kmrn_reg(hw, GG82563_REG(0x34, 9), ®_data); + ret_val = e1000e_read_kmrn_reg(hw, E1000_KMRNCTRLSTA_INBAND_PARAM, + ®_data); if (ret_val) return ret_val; reg_data |= 0x3F; - ret_val = e1000e_write_kmrn_reg(hw, GG82563_REG(0x34, 9), reg_data); + ret_val = e1000e_write_kmrn_reg(hw, E1000_KMRNCTRLSTA_INBAND_PARAM, + reg_data); if (ret_val) return ret_val; -- cgit v1.2.3-70-g09d2 From 3421eecdee750bafc78b12ac25b3e980195265eb Mon Sep 17 00:00:00 2001 From: Bruce Allan Date: Tue, 8 Dec 2009 07:28:20 +0000 Subject: e1000e: only perform ESB2 MDIC workaround on certain configurations A workaround added for all ESB2 devices (adds a delay for all MDIC accesses which resolves an issue with the MDIC ready bit being set prematurely) is applicable only to devices in which the MAC-PHY interconnect is not operating in a certain mode with in-band MDIO. Check the control register for the operating mode and enable the workaround accordingly. Signed-off-by: Bruce Allan Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/e1000e/es2lan.c | 97 ++++++++++++++++++++++++++++++--------------- drivers/net/e1000e/hw.h | 5 +++ 2 files changed, 69 insertions(+), 33 deletions(-) diff --git a/drivers/net/e1000e/es2lan.c b/drivers/net/e1000e/es2lan.c index d2a10479460..3028f23da89 100644 --- a/drivers/net/e1000e/es2lan.c +++ b/drivers/net/e1000e/es2lan.c @@ -46,6 +46,9 @@ #define E1000_KMRNCTRLSTA_HD_CTRL_1000_DEFAULT 0x0000 #define E1000_KMRNCTRLSTA_OPMODE_E_IDLE 0x2000 +#define E1000_KMRNCTRLSTA_OPMODE_MASK 0x000C +#define E1000_KMRNCTRLSTA_OPMODE_INBAND_MDIO 0x0004 + #define E1000_TCTL_EXT_GCEX_MASK 0x000FFC00 /* Gigabit Carry Extend Padding */ #define DEFAULT_TCTL_EXT_GCEX_80003ES2LAN 0x00010000 @@ -462,28 +465,36 @@ static s32 e1000_read_phy_reg_gg82563_80003es2lan(struct e1000_hw *hw, return ret_val; } - /* - * The "ready" bit in the MDIC register may be incorrectly set - * before the device has completed the "Page Select" MDI - * transaction. So we wait 200us after each MDI command... - */ - udelay(200); + if (hw->dev_spec.e80003es2lan.mdic_wa_enable == true) { + /* + * The "ready" bit in the MDIC register may be incorrectly set + * before the device has completed the "Page Select" MDI + * transaction. So we wait 200us after each MDI command... + */ + udelay(200); - /* ...and verify the command was successful. */ - ret_val = e1000e_read_phy_reg_mdic(hw, page_select, &temp); + /* ...and verify the command was successful. */ + ret_val = e1000e_read_phy_reg_mdic(hw, page_select, &temp); - if (((u16)offset >> GG82563_PAGE_SHIFT) != temp) { - ret_val = -E1000_ERR_PHY; - e1000_release_phy_80003es2lan(hw); - return ret_val; - } + if (((u16)offset >> GG82563_PAGE_SHIFT) != temp) { + ret_val = -E1000_ERR_PHY; + e1000_release_phy_80003es2lan(hw); + return ret_val; + } - udelay(200); + udelay(200); - ret_val = e1000e_read_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset, - data); + ret_val = e1000e_read_phy_reg_mdic(hw, + MAX_PHY_REG_ADDRESS & offset, + data); + + udelay(200); + } else { + ret_val = e1000e_read_phy_reg_mdic(hw, + MAX_PHY_REG_ADDRESS & offset, + data); + } - udelay(200); e1000_release_phy_80003es2lan(hw); return ret_val; @@ -526,28 +537,35 @@ static s32 e1000_write_phy_reg_gg82563_80003es2lan(struct e1000_hw *hw, return ret_val; } + if (hw->dev_spec.e80003es2lan.mdic_wa_enable == true) { + /* + * The "ready" bit in the MDIC register may be incorrectly set + * before the device has completed the "Page Select" MDI + * transaction. So we wait 200us after each MDI command... + */ + udelay(200); - /* - * The "ready" bit in the MDIC register may be incorrectly set - * before the device has completed the "Page Select" MDI - * transaction. So we wait 200us after each MDI command... - */ - udelay(200); + /* ...and verify the command was successful. */ + ret_val = e1000e_read_phy_reg_mdic(hw, page_select, &temp); - /* ...and verify the command was successful. */ - ret_val = e1000e_read_phy_reg_mdic(hw, page_select, &temp); + if (((u16)offset >> GG82563_PAGE_SHIFT) != temp) { + e1000_release_phy_80003es2lan(hw); + return -E1000_ERR_PHY; + } - if (((u16)offset >> GG82563_PAGE_SHIFT) != temp) { - e1000_release_phy_80003es2lan(hw); - return -E1000_ERR_PHY; - } + udelay(200); - udelay(200); + ret_val = e1000e_write_phy_reg_mdic(hw, + MAX_PHY_REG_ADDRESS & offset, + data); - ret_val = e1000e_write_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset, - data); + udelay(200); + } else { + ret_val = e1000e_write_phy_reg_mdic(hw, + MAX_PHY_REG_ADDRESS & offset, + data); + } - udelay(200); e1000_release_phy_80003es2lan(hw); return ret_val; @@ -866,6 +884,19 @@ static s32 e1000_init_hw_80003es2lan(struct e1000_hw *hw) reg_data &= ~0x00100000; E1000_WRITE_REG_ARRAY(hw, E1000_FFLT, 0x0001, reg_data); + /* default to true to enable the MDIC W/A */ + hw->dev_spec.e80003es2lan.mdic_wa_enable = true; + + ret_val = e1000_read_kmrn_reg_80003es2lan(hw, + E1000_KMRNCTRLSTA_OFFSET >> + E1000_KMRNCTRLSTA_OFFSET_SHIFT, + &i); + if (!ret_val) { + if ((i & E1000_KMRNCTRLSTA_OPMODE_MASK) == + E1000_KMRNCTRLSTA_OPMODE_INBAND_MDIO) + hw->dev_spec.e80003es2lan.mdic_wa_enable = false; + } + /* * Clear all of the statistics registers (clear on read). It is * important that we do this after we have tried to establish link diff --git a/drivers/net/e1000e/hw.h b/drivers/net/e1000e/hw.h index 5ed17889e64..2784cf44a6f 100644 --- a/drivers/net/e1000e/hw.h +++ b/drivers/net/e1000e/hw.h @@ -900,6 +900,10 @@ struct e1000_dev_spec_82571 { u32 smb_counter; }; +struct e1000_dev_spec_80003es2lan { + bool mdic_wa_enable; +}; + struct e1000_shadow_ram { u16 value; bool modified; @@ -928,6 +932,7 @@ struct e1000_hw { union { struct e1000_dev_spec_82571 e82571; + struct e1000_dev_spec_80003es2lan e80003es2lan; struct e1000_dev_spec_ich8lan ich8lan; } dev_spec; }; -- cgit v1.2.3-70-g09d2 From 60d51134281fbeb352013d782a440fb338d31f01 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 8 Dec 2009 07:22:03 +0000 Subject: ixgbe: Fix TX stats accounting Here is an updated version, because ixgbe_get_ethtool_stats() needs to call dev_get_stats() or "ethtool -S" wont give correct tx_bytes/tx_packets values. Several cpus can update netdev->stats.tx_bytes & netdev->stats.tx_packets in parallel. In this case, TX stats are under estimated and false sharing takes place. After a pktgen session sending exactly 200000000 packets : # ifconfig fiber0 | grep TX TX packets:198501982 errors:0 dropped:0 overruns:0 carrier:0 Multi queue devices should instead use txq->tx_bytes & txq->tx_packets in their xmit() method (appropriate txq lock already held by caller, no cache line miss), or use appropriate locking. After patch, same pktgen session gives : # ifconfig fiber0 | grep TX TX packets:200000000 errors:0 dropped:0 overruns:0 carrier:0 Signed-off-by: Eric Dumazet Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ixgbe/ixgbe_ethtool.c | 1 + drivers/net/ixgbe/ixgbe_main.c | 20 ++++---------------- 2 files changed, 5 insertions(+), 16 deletions(-) diff --git a/drivers/net/ixgbe/ixgbe_ethtool.c b/drivers/net/ixgbe/ixgbe_ethtool.c index 06a9d18bbdb..0bd49d3b9f6 100644 --- a/drivers/net/ixgbe/ixgbe_ethtool.c +++ b/drivers/net/ixgbe/ixgbe_ethtool.c @@ -990,6 +990,7 @@ static void ixgbe_get_ethtool_stats(struct net_device *netdev, char *p = NULL; ixgbe_update_stats(adapter); + dev_get_stats(netdev); for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) { switch (ixgbe_gstrings_stats[i].type) { case NETDEV_STATS: diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index 247ed2a2476..4374f441c42 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -435,8 +435,6 @@ static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector, tx_ring->total_packets += total_packets; tx_ring->stats.packets += total_packets; tx_ring->stats.bytes += total_bytes; - netdev->stats.tx_bytes += total_bytes; - netdev->stats.tx_packets += total_packets; return (count < tx_ring->work_limit); } @@ -5327,6 +5325,7 @@ static netdev_tx_t ixgbe_xmit_frame(struct sk_buff *skb, { struct ixgbe_adapter *adapter = netdev_priv(netdev); struct ixgbe_ring *tx_ring; + struct netdev_queue *txq; unsigned int first; unsigned int tx_flags = 0; u8 hdr_len = 0; @@ -5424,6 +5423,9 @@ static netdev_tx_t ixgbe_xmit_frame(struct sk_buff *skb, tx_ring->atr_count = 0; } } + txq = netdev_get_tx_queue(netdev, tx_ring->queue_index); + txq->tx_bytes += skb->len; + txq->tx_packets++; ixgbe_tx_queue(adapter, tx_ring, tx_flags, count, skb->len, hdr_len); ixgbe_maybe_stop_tx(netdev, tx_ring, DESC_NEEDED); @@ -5437,19 +5439,6 @@ static netdev_tx_t ixgbe_xmit_frame(struct sk_buff *skb, return NETDEV_TX_OK; } -/** - * ixgbe_get_stats - Get System Network Statistics - * @netdev: network interface device structure - * - * Returns the address of the device statistics structure. - * The statistics are actually updated from the timer callback. - **/ -static struct net_device_stats *ixgbe_get_stats(struct net_device *netdev) -{ - /* only return the current stats */ - return &netdev->stats; -} - /** * ixgbe_set_mac - Change the Ethernet Address of the NIC * @netdev: network interface device structure @@ -5580,7 +5569,6 @@ static const struct net_device_ops ixgbe_netdev_ops = { .ndo_stop = ixgbe_close, .ndo_start_xmit = ixgbe_xmit_frame, .ndo_select_queue = ixgbe_select_queue, - .ndo_get_stats = ixgbe_get_stats, .ndo_set_rx_mode = ixgbe_set_rx_mode, .ndo_set_multicast_list = ixgbe_set_rx_mode, .ndo_validate_addr = eth_validate_addr, -- cgit v1.2.3-70-g09d2 From 74757d49016a8b06ca028196886641d7aeb78de5 Mon Sep 17 00:00:00 2001 From: Don Skidmore Date: Tue, 8 Dec 2009 07:22:23 +0000 Subject: ixgbe: add support for 82599 KR device 0x1517 Signed-off-by: Don Skidmore Acked-by: Peter P Waskiewicz Jr Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ixgbe/ixgbe_82599.c | 1 + drivers/net/ixgbe/ixgbe_main.c | 2 ++ drivers/net/ixgbe/ixgbe_type.h | 1 + 3 files changed, 4 insertions(+) diff --git a/drivers/net/ixgbe/ixgbe_82599.c b/drivers/net/ixgbe/ixgbe_82599.c index 72106898a5c..538340527aa 100644 --- a/drivers/net/ixgbe/ixgbe_82599.c +++ b/drivers/net/ixgbe/ixgbe_82599.c @@ -342,6 +342,7 @@ static enum ixgbe_media_type ixgbe_get_media_type_82599(struct ixgbe_hw *hw) case IXGBE_DEV_ID_82599_KX4: case IXGBE_DEV_ID_82599_KX4_MEZZ: case IXGBE_DEV_ID_82599_COMBO_BACKPLANE: + case IXGBE_DEV_ID_82599_KR: case IXGBE_DEV_ID_82599_XAUI_LOM: /* Default device ID is mezzanine card KX/KX4 */ media_type = ixgbe_media_type_backplane; diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index 4374f441c42..35ea8c93fd8 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -96,6 +96,8 @@ static struct pci_device_id ixgbe_pci_tbl[] = { board_82599 }, {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_XAUI_LOM), board_82599 }, + {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KR), + board_82599 }, {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP), board_82599 }, {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_EM), diff --git a/drivers/net/ixgbe/ixgbe_type.h b/drivers/net/ixgbe/ixgbe_type.h index 21b6633da57..f3e8d52610b 100644 --- a/drivers/net/ixgbe/ixgbe_type.h +++ b/drivers/net/ixgbe/ixgbe_type.h @@ -50,6 +50,7 @@ #define IXGBE_DEV_ID_82598EB_XF_LR 0x10F4 #define IXGBE_DEV_ID_82599_KX4 0x10F7 #define IXGBE_DEV_ID_82599_KX4_MEZZ 0x1514 +#define IXGBE_DEV_ID_82599_KR 0x1517 #define IXGBE_DEV_ID_82599_CX4 0x10F9 #define IXGBE_DEV_ID_82599_SFP 0x10FB #define IXGBE_DEV_ID_82599_SFP_EM 0x1507 -- cgit v1.2.3-70-g09d2 From 9327f7053e3993c125944fdb137a0618319ef2a0 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 4 Dec 2009 03:46:54 +0000 Subject: tcp: Fix a connect() race with timewait sockets First patch changes __inet_hash_nolisten() and __inet6_hash() to get a timewait parameter to be able to unhash it from ehash at same time the new socket is inserted in hash. This makes sure timewait socket wont be found by a concurrent writer in __inet_check_established() Reported-by: kapil dakhane Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/net/inet6_hashtables.h | 2 +- include/net/inet_hashtables.h | 8 +++++--- net/dccp/ipv4.c | 2 +- net/dccp/ipv6.c | 4 ++-- net/ipv4/inet_hashtables.c | 22 ++++++++++++++++------ net/ipv4/tcp_ipv4.c | 2 +- net/ipv6/inet6_hashtables.c | 8 +++++++- net/ipv6/tcp_ipv6.c | 4 ++-- 8 files changed, 35 insertions(+), 17 deletions(-) diff --git a/include/net/inet6_hashtables.h b/include/net/inet6_hashtables.h index 92838d3a1ab..e46674d5dae 100644 --- a/include/net/inet6_hashtables.h +++ b/include/net/inet6_hashtables.h @@ -53,7 +53,7 @@ static inline int inet6_sk_ehashfn(const struct sock *sk) return inet6_ehashfn(net, laddr, lport, faddr, fport); } -extern void __inet6_hash(struct sock *sk); +extern int __inet6_hash(struct sock *sk, struct inet_timewait_sock *twp); /* * Sockets in TCP_CLOSE state are _always_ taken out of the hash, so diff --git a/include/net/inet_hashtables.h b/include/net/inet_hashtables.h index 41cbddd25b7..74358d1b3f4 100644 --- a/include/net/inet_hashtables.h +++ b/include/net/inet_hashtables.h @@ -251,7 +251,7 @@ extern void inet_put_port(struct sock *sk); void inet_hashinfo_init(struct inet_hashinfo *h); -extern void __inet_hash_nolisten(struct sock *sk); +extern int __inet_hash_nolisten(struct sock *sk, struct inet_timewait_sock *tw); extern void inet_hash(struct sock *sk); extern void inet_unhash(struct sock *sk); @@ -391,10 +391,12 @@ static inline struct sock *__inet_lookup_skb(struct inet_hashinfo *hashinfo, } extern int __inet_hash_connect(struct inet_timewait_death_row *death_row, - struct sock *sk, u32 port_offset, + struct sock *sk, + u32 port_offset, int (*check_established)(struct inet_timewait_death_row *, struct sock *, __u16, struct inet_timewait_sock **), - void (*hash)(struct sock *sk)); + int (*hash)(struct sock *sk, struct inet_timewait_sock *twp)); + extern int inet_hash_connect(struct inet_timewait_death_row *death_row, struct sock *sk); #endif /* _INET_HASHTABLES_H */ diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c index efbcfdc1279..dad7bc4878e 100644 --- a/net/dccp/ipv4.c +++ b/net/dccp/ipv4.c @@ -408,7 +408,7 @@ struct sock *dccp_v4_request_recv_sock(struct sock *sk, struct sk_buff *skb, dccp_sync_mss(newsk, dst_mtu(dst)); - __inet_hash_nolisten(newsk); + __inet_hash_nolisten(newsk, NULL); __inet_inherit_port(sk, newsk); return newsk; diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c index 6574215a1f5..baf05cf43c2 100644 --- a/net/dccp/ipv6.c +++ b/net/dccp/ipv6.c @@ -46,7 +46,7 @@ static void dccp_v6_hash(struct sock *sk) return; } local_bh_disable(); - __inet6_hash(sk); + __inet6_hash(sk, NULL); local_bh_enable(); } } @@ -644,7 +644,7 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk, newinet->inet_daddr = newinet->inet_saddr = LOOPBACK4_IPV6; newinet->inet_rcv_saddr = LOOPBACK4_IPV6; - __inet6_hash(newsk); + __inet6_hash(newsk, NULL); __inet_inherit_port(sk, newsk); return newsk; diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c index 21e5e32d8c6..c4201b7ece3 100644 --- a/net/ipv4/inet_hashtables.c +++ b/net/ipv4/inet_hashtables.c @@ -351,12 +351,13 @@ static inline u32 inet_sk_port_offset(const struct sock *sk) inet->inet_dport); } -void __inet_hash_nolisten(struct sock *sk) +int __inet_hash_nolisten(struct sock *sk, struct inet_timewait_sock *tw) { struct inet_hashinfo *hashinfo = sk->sk_prot->h.hashinfo; struct hlist_nulls_head *list; spinlock_t *lock; struct inet_ehash_bucket *head; + int twrefcnt = 0; WARN_ON(!sk_unhashed(sk)); @@ -367,8 +368,13 @@ void __inet_hash_nolisten(struct sock *sk) spin_lock(lock); __sk_nulls_add_node_rcu(sk, list); + if (tw) { + WARN_ON(sk->sk_hash != tw->tw_hash); + twrefcnt = inet_twsk_unhash(tw); + } spin_unlock(lock); sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1); + return twrefcnt; } EXPORT_SYMBOL_GPL(__inet_hash_nolisten); @@ -378,7 +384,7 @@ static void __inet_hash(struct sock *sk) struct inet_listen_hashbucket *ilb; if (sk->sk_state != TCP_LISTEN) { - __inet_hash_nolisten(sk); + __inet_hash_nolisten(sk, NULL); return; } @@ -427,7 +433,7 @@ int __inet_hash_connect(struct inet_timewait_death_row *death_row, struct sock *sk, u32 port_offset, int (*check_established)(struct inet_timewait_death_row *, struct sock *, __u16, struct inet_timewait_sock **), - void (*hash)(struct sock *sk)) + int (*hash)(struct sock *sk, struct inet_timewait_sock *twp)) { struct inet_hashinfo *hinfo = death_row->hashinfo; const unsigned short snum = inet_sk(sk)->inet_num; @@ -435,6 +441,7 @@ int __inet_hash_connect(struct inet_timewait_death_row *death_row, struct inet_bind_bucket *tb; int ret; struct net *net = sock_net(sk); + int twrefcnt = 1; if (!snum) { int i, remaining, low, high, port; @@ -493,13 +500,16 @@ ok: inet_bind_hash(sk, tb, port); if (sk_unhashed(sk)) { inet_sk(sk)->inet_sport = htons(port); - hash(sk); + twrefcnt += hash(sk, tw); } spin_unlock(&head->lock); if (tw) { inet_twsk_deschedule(tw, death_row); - inet_twsk_put(tw); + while (twrefcnt) { + twrefcnt--; + inet_twsk_put(tw); + } } ret = 0; @@ -510,7 +520,7 @@ ok: tb = inet_csk(sk)->icsk_bind_hash; spin_lock_bh(&head->lock); if (sk_head(&tb->owners) == sk && !sk->sk_bind_node.next) { - hash(sk); + hash(sk, NULL); spin_unlock_bh(&head->lock); return 0; } else { diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 29002ab26e0..15e96030ce4 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -1464,7 +1464,7 @@ struct sock *tcp_v4_syn_recv_sock(struct sock *sk, struct sk_buff *skb, } #endif - __inet_hash_nolisten(newsk); + __inet_hash_nolisten(newsk, NULL); __inet_inherit_port(sk, newsk); return newsk; diff --git a/net/ipv6/inet6_hashtables.c b/net/ipv6/inet6_hashtables.c index c813e294ec0..633a6c26613 100644 --- a/net/ipv6/inet6_hashtables.c +++ b/net/ipv6/inet6_hashtables.c @@ -22,9 +22,10 @@ #include #include -void __inet6_hash(struct sock *sk) +int __inet6_hash(struct sock *sk, struct inet_timewait_sock *tw) { struct inet_hashinfo *hashinfo = sk->sk_prot->h.hashinfo; + int twrefcnt = 0; WARN_ON(!sk_unhashed(sk)); @@ -45,10 +46,15 @@ void __inet6_hash(struct sock *sk) lock = inet_ehash_lockp(hashinfo, hash); spin_lock(lock); __sk_nulls_add_node_rcu(sk, list); + if (tw) { + WARN_ON(sk->sk_hash != tw->tw_hash); + twrefcnt = inet_twsk_unhash(tw); + } spin_unlock(lock); } sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1); + return twrefcnt; } EXPORT_SYMBOL(__inet6_hash); diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index aadd7cef73b..ee9cf62458d 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -96,7 +96,7 @@ static void tcp_v6_hash(struct sock *sk) return; } local_bh_disable(); - __inet6_hash(sk); + __inet6_hash(sk, NULL); local_bh_enable(); } } @@ -1496,7 +1496,7 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb, } #endif - __inet6_hash(newsk); + __inet6_hash(newsk, NULL); __inet_inherit_port(sk, newsk); return newsk; -- cgit v1.2.3-70-g09d2 From 3cdaedae635b17ce23c738ce7d364b442310cdec Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 4 Dec 2009 03:47:42 +0000 Subject: tcp: Fix a connect() race with timewait sockets When we find a timewait connection in __inet_hash_connect() and reuse it for a new connection request, we have a race window, releasing bind list lock and reacquiring it in __inet_twsk_kill() to remove timewait socket from list. Another thread might find the timewait socket we already chose, leading to list corruption and crashes. Fix is to remove timewait socket from bind list before releasing the bind lock. Note: This problem happens if sysctl_tcp_tw_reuse is set. Reported-by: kapil dakhane Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/net/inet_timewait_sock.h | 3 +++ net/ipv4/inet_hashtables.c | 2 ++ net/ipv4/inet_timewait_sock.c | 29 +++++++++++++++++++++-------- 3 files changed, 26 insertions(+), 8 deletions(-) diff --git a/include/net/inet_timewait_sock.h b/include/net/inet_timewait_sock.h index b801ade2295..79f67eae8a7 100644 --- a/include/net/inet_timewait_sock.h +++ b/include/net/inet_timewait_sock.h @@ -201,6 +201,9 @@ extern void inet_twsk_put(struct inet_timewait_sock *tw); extern int inet_twsk_unhash(struct inet_timewait_sock *tw); +extern int inet_twsk_bind_unhash(struct inet_timewait_sock *tw, + struct inet_hashinfo *hashinfo); + extern struct inet_timewait_sock *inet_twsk_alloc(const struct sock *sk, const int state); diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c index c4201b7ece3..2b79377b468 100644 --- a/net/ipv4/inet_hashtables.c +++ b/net/ipv4/inet_hashtables.c @@ -502,6 +502,8 @@ ok: inet_sk(sk)->inet_sport = htons(port); twrefcnt += hash(sk, tw); } + if (tw) + twrefcnt += inet_twsk_bind_unhash(tw, hinfo); spin_unlock(&head->lock); if (tw) { diff --git a/net/ipv4/inet_timewait_sock.c b/net/ipv4/inet_timewait_sock.c index 0fdf45e4c90..bf4b1e2a430 100644 --- a/net/ipv4/inet_timewait_sock.c +++ b/net/ipv4/inet_timewait_sock.c @@ -29,12 +29,29 @@ int inet_twsk_unhash(struct inet_timewait_sock *tw) return 1; } +/* + * unhash a timewait socket from bind hash + * lock must be hold by caller + */ +int inet_twsk_bind_unhash(struct inet_timewait_sock *tw, + struct inet_hashinfo *hashinfo) +{ + struct inet_bind_bucket *tb = tw->tw_tb; + + if (!tb) + return 0; + + __hlist_del(&tw->tw_bind_node); + tw->tw_tb = NULL; + inet_bind_bucket_destroy(hashinfo->bind_bucket_cachep, tb); + return 1; +} + /* Must be called with locally disabled BHs. */ static void __inet_twsk_kill(struct inet_timewait_sock *tw, struct inet_hashinfo *hashinfo) { struct inet_bind_hashbucket *bhead; - struct inet_bind_bucket *tb; int refcnt; /* Unlink from established hashes. */ spinlock_t *lock = inet_ehash_lockp(hashinfo, tw->tw_hash); @@ -46,15 +63,11 @@ static void __inet_twsk_kill(struct inet_timewait_sock *tw, /* Disassociate with bind bucket. */ bhead = &hashinfo->bhash[inet_bhashfn(twsk_net(tw), tw->tw_num, hashinfo->bhash_size)]; + spin_lock(&bhead->lock); - tb = tw->tw_tb; - if (tb) { - __hlist_del(&tw->tw_bind_node); - tw->tw_tb = NULL; - inet_bind_bucket_destroy(hashinfo->bind_bucket_cachep, tb); - refcnt++; - } + refcnt += inet_twsk_bind_unhash(tw, hashinfo); spin_unlock(&bhead->lock); + #ifdef SOCK_REFCNT_DEBUG if (atomic_read(&tw->tw_refcnt) != 1) { printk(KERN_DEBUG "%s timewait_sock %p refcnt=%d\n", -- cgit v1.2.3-70-g09d2 From 2a8875e73ffb18165ceb245f99c2ccad77378051 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 8 Dec 2009 20:19:53 -0800 Subject: [PATCH] tcp: documents timewait refcnt tricks Adds kerneldoc for inet_twsk_unhash() & inet_twsk_bind_unhash(). With help from Randy Dunlap. Suggested-by: Evgeniy Polyakov Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- net/ipv4/inet_timewait_sock.c | 38 ++++++++++++++++++++++++-------------- 1 file changed, 24 insertions(+), 14 deletions(-) diff --git a/net/ipv4/inet_timewait_sock.c b/net/ipv4/inet_timewait_sock.c index bf4b1e2a430..cc94cc2d8b2 100644 --- a/net/ipv4/inet_timewait_sock.c +++ b/net/ipv4/inet_timewait_sock.c @@ -15,9 +15,13 @@ #include -/* - * unhash a timewait socket from established hash - * lock must be hold by caller +/** + * inet_twsk_unhash - unhash a timewait socket from established hash + * @tw: timewait socket + * + * unhash a timewait socket from established hash, if hashed. + * ehash lock must be held by caller. + * Returns 1 if caller should call inet_twsk_put() after lock release. */ int inet_twsk_unhash(struct inet_timewait_sock *tw) { @@ -26,12 +30,21 @@ int inet_twsk_unhash(struct inet_timewait_sock *tw) hlist_nulls_del_rcu(&tw->tw_node); sk_nulls_node_init(&tw->tw_node); + /* + * We cannot call inet_twsk_put() ourself under lock, + * caller must call it for us. + */ return 1; } -/* - * unhash a timewait socket from bind hash - * lock must be hold by caller +/** + * inet_twsk_bind_unhash - unhash a timewait socket from bind hash + * @tw: timewait socket + * @hashinfo: hashinfo pointer + * + * unhash a timewait socket from bind hash, if hashed. + * bind hash lock must be held by caller. + * Returns 1 if caller should call inet_twsk_put() after lock release. */ int inet_twsk_bind_unhash(struct inet_timewait_sock *tw, struct inet_hashinfo *hashinfo) @@ -44,6 +57,10 @@ int inet_twsk_bind_unhash(struct inet_timewait_sock *tw, __hlist_del(&tw->tw_bind_node); tw->tw_tb = NULL; inet_bind_bucket_destroy(hashinfo->bind_bucket_cachep, tb); + /* + * We cannot call inet_twsk_put() ourself under lock, + * caller must call it for us. + */ return 1; } @@ -139,7 +156,7 @@ void __inet_twsk_hashdance(struct inet_timewait_sock *tw, struct sock *sk, /* * Notes : - * - We initially set tw_refcnt to 0 in inet_twsk_alloc() + * - We initially set tw_refcnt to 0 in inet_twsk_alloc() * - We add one reference for the bhash link * - We add one reference for the ehash link * - We want this refcnt update done before allowing other @@ -149,7 +166,6 @@ void __inet_twsk_hashdance(struct inet_timewait_sock *tw, struct sock *sk, spin_unlock(lock); } - EXPORT_SYMBOL_GPL(__inet_twsk_hashdance); struct inet_timewait_sock *inet_twsk_alloc(const struct sock *sk, const int state) @@ -190,7 +206,6 @@ struct inet_timewait_sock *inet_twsk_alloc(const struct sock *sk, const int stat return tw; } - EXPORT_SYMBOL_GPL(inet_twsk_alloc); /* Returns non-zero if quota exceeded. */ @@ -269,7 +284,6 @@ void inet_twdr_hangman(unsigned long data) out: spin_unlock(&twdr->death_lock); } - EXPORT_SYMBOL_GPL(inet_twdr_hangman); void inet_twdr_twkill_work(struct work_struct *work) @@ -300,7 +314,6 @@ void inet_twdr_twkill_work(struct work_struct *work) spin_unlock_bh(&twdr->death_lock); } } - EXPORT_SYMBOL_GPL(inet_twdr_twkill_work); /* These are always called from BH context. See callers in @@ -320,7 +333,6 @@ void inet_twsk_deschedule(struct inet_timewait_sock *tw, spin_unlock(&twdr->death_lock); __inet_twsk_kill(tw, twdr->hashinfo); } - EXPORT_SYMBOL(inet_twsk_deschedule); void inet_twsk_schedule(struct inet_timewait_sock *tw, @@ -401,7 +413,6 @@ void inet_twsk_schedule(struct inet_timewait_sock *tw, mod_timer(&twdr->tw_timer, jiffies + twdr->period); spin_unlock(&twdr->death_lock); } - EXPORT_SYMBOL_GPL(inet_twsk_schedule); void inet_twdr_twcal_tick(unsigned long data) @@ -462,7 +473,6 @@ out: #endif spin_unlock(&twdr->death_lock); } - EXPORT_SYMBOL_GPL(inet_twdr_twcal_tick); void inet_twsk_purge(struct inet_hashinfo *hashinfo, -- cgit v1.2.3-70-g09d2 From eb0445887a45a3705522aac6c2d8367e90358792 Mon Sep 17 00:00:00 2001 From: chas williams - CONTRACTOR Date: Fri, 4 Dec 2009 05:19:30 +0000 Subject: atm: [lec] initialize .netdev_ops before calling register_netdev() fix oops when initializing lane interfaces. lec should probably be changed to use alloc_netdev() instead. Signed-off-by: Chas Williams - CONTRACTOR Signed-off-by: David S. Miller --- net/atm/lec.c | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) diff --git a/net/atm/lec.c b/net/atm/lec.c index b2d64456032..42749b7b917 100644 --- a/net/atm/lec.c +++ b/net/atm/lec.c @@ -62,7 +62,6 @@ static int lec_open(struct net_device *dev); static netdev_tx_t lec_start_xmit(struct sk_buff *skb, struct net_device *dev); static int lec_close(struct net_device *dev); -static void lec_init(struct net_device *dev); static struct lec_arp_table *lec_arp_find(struct lec_priv *priv, const unsigned char *mac_addr); static int lec_arp_remove(struct lec_priv *priv, @@ -670,13 +669,6 @@ static const struct net_device_ops lec_netdev_ops = { .ndo_set_multicast_list = lec_set_multicast_list, }; - -static void lec_init(struct net_device *dev) -{ - dev->netdev_ops = &lec_netdev_ops; - printk("%s: Initialized!\n", dev->name); -} - static const unsigned char lec_ctrl_magic[] = { 0xff, 0x00, @@ -893,6 +885,7 @@ static int lecd_attach(struct atm_vcc *vcc, int arg) dev_lec[i] = alloc_etherdev(size); if (!dev_lec[i]) return -ENOMEM; + dev_lec[i]->netdev_ops = &lec_netdev_ops; snprintf(dev_lec[i]->name, IFNAMSIZ, "lec%d", i); if (register_netdev(dev_lec[i])) { free_netdev(dev_lec[i]); @@ -901,7 +894,6 @@ static int lecd_attach(struct atm_vcc *vcc, int arg) priv = netdev_priv(dev_lec[i]); priv->is_trdev = is_trdev; - lec_init(dev_lec[i]); } else { priv = netdev_priv(dev_lec[i]); if (priv->lecd) -- cgit v1.2.3-70-g09d2 From 504bb3b58e7314e0fe026da280e8168c1314be3d Mon Sep 17 00:00:00 2001 From: chas williams - CONTRACTOR Date: Fri, 4 Dec 2009 05:22:17 +0000 Subject: atm: [he] adjust tests to account for sk_wmem_alloc changes due to reference counting sk_wmem_alloc now has a value of 1 when all the outstanding data has been sent. Signed-off-by: Chas Williams - CONTRACTOR Signed-off-by: David S. Miller --- drivers/atm/he.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/atm/he.c b/drivers/atm/he.c index e90665876c4..e8c6529dc36 100644 --- a/drivers/atm/he.c +++ b/drivers/atm/he.c @@ -2505,7 +2505,7 @@ he_close(struct atm_vcc *vcc) * TBRQ, the host issues the close command to the adapter. */ - while (((tx_inuse = atomic_read(&sk_atm(vcc)->sk_wmem_alloc)) > 0) && + while (((tx_inuse = atomic_read(&sk_atm(vcc)->sk_wmem_alloc)) > 1) && (retry < MAX_RETRY)) { msleep(sleep); if (sleep < 250) @@ -2514,7 +2514,7 @@ he_close(struct atm_vcc *vcc) ++retry; } - if (tx_inuse) + if (tx_inuse > 1) hprintk("close tx cid 0x%x tx_inuse = %d\n", cid, tx_inuse); /* 2.3.1.1 generic close operations with flush */ -- cgit v1.2.3-70-g09d2 From 2e302ebfeac04beb5a5d6af1ac583c6a1fb76d1a Mon Sep 17 00:00:00 2001 From: chas williams - CONTRACTOR Date: Fri, 4 Dec 2009 11:06:32 +0000 Subject: atm: [br2684] allow routed mode operation again in routed mode, we don't have a hardware address so netdev_ops doesnt need to validate our hardware address via .ndo_validate_addr Reported-by: Manuel Fuentes Signed-off-by: Chas Williams - CONTRACTOR Signed-off-by: David S. Miller --- net/atm/br2684.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/net/atm/br2684.c b/net/atm/br2684.c index 26a646d4eb3..c9230c39869 100644 --- a/net/atm/br2684.c +++ b/net/atm/br2684.c @@ -554,6 +554,12 @@ static const struct net_device_ops br2684_netdev_ops = { .ndo_validate_addr = eth_validate_addr, }; +static const struct net_device_ops br2684_netdev_ops_routed = { + .ndo_start_xmit = br2684_start_xmit, + .ndo_set_mac_address = br2684_mac_addr, + .ndo_change_mtu = eth_change_mtu +}; + static void br2684_setup(struct net_device *netdev) { struct br2684_dev *brdev = BRPRIV(netdev); @@ -569,11 +575,10 @@ static void br2684_setup(struct net_device *netdev) static void br2684_setup_routed(struct net_device *netdev) { struct br2684_dev *brdev = BRPRIV(netdev); - brdev->net_dev = netdev; + brdev->net_dev = netdev; netdev->hard_header_len = 0; - - netdev->netdev_ops = &br2684_netdev_ops; + netdev->netdev_ops = &br2684_netdev_ops_routed; netdev->addr_len = 0; netdev->mtu = 1500; netdev->type = ARPHRD_PPP; -- cgit v1.2.3-70-g09d2 From 4b860abf636fdd963731ae4ccafdd39ebcd5f962 Mon Sep 17 00:00:00 2001 From: Brice Goglin Date: Tue, 8 Dec 2009 20:24:35 -0800 Subject: myri10ge: use src+dst for rss hashing Use a more effective rss hash by default (src + dst, rather than just src). Signed-off-by: Brice Goglin Signed-off-by: David S. Miller --- drivers/net/myri10ge/myri10ge.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c index d38921906bb..3fcb1c356e0 100644 --- a/drivers/net/myri10ge/myri10ge.c +++ b/drivers/net/myri10ge/myri10ge.c @@ -75,7 +75,7 @@ #include "myri10ge_mcp.h" #include "myri10ge_mcp_gen_header.h" -#define MYRI10GE_VERSION_STR "1.5.1-1.451" +#define MYRI10GE_VERSION_STR "1.5.1-1.453" MODULE_DESCRIPTION("Myricom 10G driver (10GbE)"); MODULE_AUTHOR("Maintainer: help@myri.com"); @@ -347,7 +347,7 @@ static int myri10ge_max_slices = 1; module_param(myri10ge_max_slices, int, S_IRUGO); MODULE_PARM_DESC(myri10ge_max_slices, "Max tx/rx queues"); -static int myri10ge_rss_hash = MXGEFW_RSS_HASH_TYPE_SRC_PORT; +static int myri10ge_rss_hash = MXGEFW_RSS_HASH_TYPE_SRC_DST_PORT; module_param(myri10ge_rss_hash, int, S_IRUGO); MODULE_PARM_DESC(myri10ge_rss_hash, "Type of RSS hashing to do"); -- cgit v1.2.3-70-g09d2 From 1e4e0767ecb1cf53a43343518c0e09ad7ee5e23a Mon Sep 17 00:00:00 2001 From: Asier Llano Date: Tue, 8 Dec 2009 20:29:10 -0800 Subject: net/mpc5200: Fix locking on fec_mpc52xx driver Fix the locking scheme on the fec_mpc52xx driver. This device can receive IRQs from three sources; the FEC itself, the tx DMA, and the rx DMA. Mutual exclusion was handled by taking a spin_lock() in the critical regions, but because the handlers are run with IRQs enabled, spin_lock() is insufficient and the driver can end up interrupting a critical region anyway from another IRQ. Asier Llano discovered that this occurs when an error IRQ is raised in the middle of handling rx irqs which resulted in an sk_buff memory leak. In addition, locking is spotty at best in the driver and inspection revealed quite a few places with insufficient locking. This patch is based on Asier's initial work, but reworks a number of things so that locks are held for as short a time as possible, so that spin_lock_irqsave() is used everywhere, and so the locks are dropped when calling into the network stack (because the lock only protects the hardware interface; not the network stack). Boot tested on a lite5200 with an NFS root. Has not been performance tested. Signed-off-by: Asier Llano Signed-off-by: Grant Likely Signed-off-by: David S. Miller --- drivers/net/fec_mpc52xx.c | 121 ++++++++++++++++++++++++---------------------- 1 file changed, 62 insertions(+), 59 deletions(-) diff --git a/drivers/net/fec_mpc52xx.c b/drivers/net/fec_mpc52xx.c index 6407672b28e..848e8407ea8 100644 --- a/drivers/net/fec_mpc52xx.c +++ b/drivers/net/fec_mpc52xx.c @@ -85,11 +85,15 @@ MODULE_PARM_DESC(debug, "debugging messages level"); static void mpc52xx_fec_tx_timeout(struct net_device *dev) { + struct mpc52xx_fec_priv *priv = netdev_priv(dev); + unsigned long flags; + dev_warn(&dev->dev, "transmit timed out\n"); + spin_lock_irqsave(&priv->lock, flags); mpc52xx_fec_reset(dev); - dev->stats.tx_errors++; + spin_unlock_irqrestore(&priv->lock, flags); netif_wake_queue(dev); } @@ -135,28 +139,32 @@ static void mpc52xx_fec_free_rx_buffers(struct net_device *dev, struct bcom_task } } +static void +mpc52xx_fec_rx_submit(struct net_device *dev, struct sk_buff *rskb) +{ + struct mpc52xx_fec_priv *priv = netdev_priv(dev); + struct bcom_fec_bd *bd; + + bd = (struct bcom_fec_bd *) bcom_prepare_next_buffer(priv->rx_dmatsk); + bd->status = FEC_RX_BUFFER_SIZE; + bd->skb_pa = dma_map_single(dev->dev.parent, rskb->data, + FEC_RX_BUFFER_SIZE, DMA_FROM_DEVICE); + bcom_submit_next_buffer(priv->rx_dmatsk, rskb); +} + static int mpc52xx_fec_alloc_rx_buffers(struct net_device *dev, struct bcom_task *rxtsk) { - while (!bcom_queue_full(rxtsk)) { - struct sk_buff *skb; - struct bcom_fec_bd *bd; + struct sk_buff *skb; + while (!bcom_queue_full(rxtsk)) { skb = dev_alloc_skb(FEC_RX_BUFFER_SIZE); - if (skb == NULL) + if (!skb) return -EAGAIN; /* zero out the initial receive buffers to aid debugging */ memset(skb->data, 0, FEC_RX_BUFFER_SIZE); - - bd = (struct bcom_fec_bd *)bcom_prepare_next_buffer(rxtsk); - - bd->status = FEC_RX_BUFFER_SIZE; - bd->skb_pa = dma_map_single(dev->dev.parent, skb->data, - FEC_RX_BUFFER_SIZE, DMA_FROM_DEVICE); - - bcom_submit_next_buffer(rxtsk, skb); + mpc52xx_fec_rx_submit(dev, skb); } - return 0; } @@ -328,13 +336,12 @@ static int mpc52xx_fec_start_xmit(struct sk_buff *skb, struct net_device *dev) DMA_TO_DEVICE); bcom_submit_next_buffer(priv->tx_dmatsk, skb); + spin_unlock_irqrestore(&priv->lock, flags); if (bcom_queue_full(priv->tx_dmatsk)) { netif_stop_queue(dev); } - spin_unlock_irqrestore(&priv->lock, flags); - return NETDEV_TX_OK; } @@ -359,9 +366,9 @@ static irqreturn_t mpc52xx_fec_tx_interrupt(int irq, void *dev_id) { struct net_device *dev = dev_id; struct mpc52xx_fec_priv *priv = netdev_priv(dev); + unsigned long flags; - spin_lock(&priv->lock); - + spin_lock_irqsave(&priv->lock, flags); while (bcom_buffer_done(priv->tx_dmatsk)) { struct sk_buff *skb; struct bcom_fec_bd *bd; @@ -372,11 +379,10 @@ static irqreturn_t mpc52xx_fec_tx_interrupt(int irq, void *dev_id) dev_kfree_skb_irq(skb); } + spin_unlock_irqrestore(&priv->lock, flags); netif_wake_queue(dev); - spin_unlock(&priv->lock); - return IRQ_HANDLED; } @@ -384,67 +390,60 @@ static irqreturn_t mpc52xx_fec_rx_interrupt(int irq, void *dev_id) { struct net_device *dev = dev_id; struct mpc52xx_fec_priv *priv = netdev_priv(dev); + struct sk_buff *rskb; /* received sk_buff */ + struct sk_buff *skb; /* new sk_buff to enqueue in its place */ + struct bcom_fec_bd *bd; + u32 status, physaddr; + int length; + unsigned long flags; + + spin_lock_irqsave(&priv->lock, flags); while (bcom_buffer_done(priv->rx_dmatsk)) { - struct sk_buff *skb; - struct sk_buff *rskb; - struct bcom_fec_bd *bd; - u32 status; rskb = bcom_retrieve_buffer(priv->rx_dmatsk, &status, - (struct bcom_bd **)&bd); - dma_unmap_single(dev->dev.parent, bd->skb_pa, rskb->len, - DMA_FROM_DEVICE); + (struct bcom_bd **)&bd); + physaddr = bd->skb_pa; /* Test for errors in received frame */ if (status & BCOM_FEC_RX_BD_ERRORS) { /* Drop packet and reuse the buffer */ - bd = (struct bcom_fec_bd *) - bcom_prepare_next_buffer(priv->rx_dmatsk); - - bd->status = FEC_RX_BUFFER_SIZE; - bd->skb_pa = dma_map_single(dev->dev.parent, - rskb->data, - FEC_RX_BUFFER_SIZE, DMA_FROM_DEVICE); - - bcom_submit_next_buffer(priv->rx_dmatsk, rskb); - + mpc52xx_fec_rx_submit(dev, rskb); dev->stats.rx_dropped++; - continue; } /* skbs are allocated on open, so now we allocate a new one, * and remove the old (with the packet) */ skb = dev_alloc_skb(FEC_RX_BUFFER_SIZE); - if (skb) { - /* Process the received skb */ - int length = status & BCOM_FEC_RX_BD_LEN_MASK; - - skb_put(rskb, length - 4); /* length without CRC32 */ - - rskb->dev = dev; - rskb->protocol = eth_type_trans(rskb, dev); - - netif_rx(rskb); - } else { + if (!skb) { /* Can't get a new one : reuse the same & drop pkt */ - dev_notice(&dev->dev, "Memory squeeze, dropping packet.\n"); + dev_notice(&dev->dev, "Low memory - dropped packet.\n"); + mpc52xx_fec_rx_submit(dev, rskb); dev->stats.rx_dropped++; - - skb = rskb; + continue; } - bd = (struct bcom_fec_bd *) - bcom_prepare_next_buffer(priv->rx_dmatsk); + /* Enqueue the new sk_buff back on the hardware */ + mpc52xx_fec_rx_submit(dev, skb); - bd->status = FEC_RX_BUFFER_SIZE; - bd->skb_pa = dma_map_single(dev->dev.parent, skb->data, - FEC_RX_BUFFER_SIZE, DMA_FROM_DEVICE); + /* Process the received skb - Drop the spin lock while + * calling into the network stack */ + spin_unlock_irqrestore(&priv->lock, flags); - bcom_submit_next_buffer(priv->rx_dmatsk, skb); + dma_unmap_single(dev->dev.parent, physaddr, rskb->len, + DMA_FROM_DEVICE); + length = status & BCOM_FEC_RX_BD_LEN_MASK; + skb_put(rskb, length - 4); /* length without CRC32 */ + rskb->dev = dev; + rskb->protocol = eth_type_trans(rskb, dev); + netif_rx(rskb); + + spin_lock_irqsave(&priv->lock, flags); } + spin_unlock_irqrestore(&priv->lock, flags); + return IRQ_HANDLED; } @@ -454,6 +453,7 @@ static irqreturn_t mpc52xx_fec_interrupt(int irq, void *dev_id) struct mpc52xx_fec_priv *priv = netdev_priv(dev); struct mpc52xx_fec __iomem *fec = priv->fec; u32 ievent; + unsigned long flags; ievent = in_be32(&fec->ievent); @@ -471,9 +471,10 @@ static irqreturn_t mpc52xx_fec_interrupt(int irq, void *dev_id) if (net_ratelimit() && (ievent & FEC_IEVENT_XFIFO_ERROR)) dev_warn(&dev->dev, "FEC_IEVENT_XFIFO_ERROR\n"); + spin_lock_irqsave(&priv->lock, flags); mpc52xx_fec_reset(dev); + spin_unlock_irqrestore(&priv->lock, flags); - netif_wake_queue(dev); return IRQ_HANDLED; } @@ -768,6 +769,8 @@ static void mpc52xx_fec_reset(struct net_device *dev) bcom_enable(priv->tx_dmatsk); mpc52xx_fec_start(dev); + + netif_wake_queue(dev); } -- cgit v1.2.3-70-g09d2 From 073886ff23bfbe7b88c9133d7a556d6ec51f0b50 Mon Sep 17 00:00:00 2001 From: Tilman Schmidt Date: Sat, 5 Dec 2009 08:04:16 +0000 Subject: gigaset: don't enable any debugging output by default When built with debugging support, the Gigaset driver enabled some debugging messages by default. Change the default to "all off". Signed-off-by: Tilman Schmidt Signed-off-by: David S. Miller --- drivers/isdn/gigaset/common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/isdn/gigaset/common.c b/drivers/isdn/gigaset/common.c index 82ed1cd14ff..664b0c519c3 100644 --- a/drivers/isdn/gigaset/common.c +++ b/drivers/isdn/gigaset/common.c @@ -29,7 +29,7 @@ #endif /* Module parameters */ -int gigaset_debuglevel = DEBUG_DEFAULT; +int gigaset_debuglevel; EXPORT_SYMBOL_GPL(gigaset_debuglevel); module_param_named(debug, gigaset_debuglevel, int, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(debug, "debug level"); -- cgit v1.2.3-70-g09d2 From 64f16603eae17e869d5fc8a60ae987394190e639 Mon Sep 17 00:00:00 2001 From: Tilman Schmidt Date: Sat, 5 Dec 2009 08:54:20 +0000 Subject: gigaset: documentation amendments Various additions and improvements to the Gigaset driver's README file, and added comments to its userspace visible include file. Signed-off-by: Tilman Schmidt Signed-off-by: David S. Miller --- Documentation/isdn/README.gigaset | 116 ++++++++++++++++++++++++++++++-------- include/linux/gigaset_dev.h | 22 +++++--- 2 files changed, 106 insertions(+), 32 deletions(-) diff --git a/Documentation/isdn/README.gigaset b/Documentation/isdn/README.gigaset index 0fc9831d7ec..794941fc949 100644 --- a/Documentation/isdn/README.gigaset +++ b/Documentation/isdn/README.gigaset @@ -68,22 +68,38 @@ GigaSet 307x Device Driver for troubleshooting or to pass module parameters. The module ser_gigaset provides a serial line discipline N_GIGASET_M101 - which drives the device through the regular serial line driver. It must - be attached to the serial line to which the M101 is connected with the - ldattach(8) command (requires util-linux-ng release 2.14 or later), for - example: - ldattach GIGASET_M101 /dev/ttyS1 + which uses the regular serial port driver to access the device, and must + therefore be attached to the serial device to which the M101 is connected. + The ldattach(8) command (included in util-linux-ng release 2.14 or later) + can be used for that purpose, for example: + ldattach GIGASET_M101 /dev/ttyS1 This will open the device file, attach the line discipline to it, and then sleep in the background, keeping the device open so that the line discipline remains active. To deactivate it, kill the daemon, for example with - killall ldattach + killall ldattach before disconnecting the device. To have this happen automatically at system startup/shutdown on an LSB compatible system, create and activate an appropriate LSB startup script /etc/init.d/gigaset. (The init name 'gigaset' is officially assigned to this project by LANANA.) Alternatively, just add the 'ldattach' command line to /etc/rc.local. + The modules accept the following parameters: + + Module Parameter Meaning + + gigaset debug debug level (see section 3.2.) + + startmode initial operation mode (see section 2.5.): + bas_gigaset ) 1=ISDN4linux/CAPI (default), 0=Unimodem + ser_gigaset ) + usb_gigaset ) cidmode initial Call-ID mode setting (see section + 2.5.): 1=on (default), 0=off + + Depending on your distribution you may want to create a separate module + configuration file /etc/modprobe.d/gigaset for these, or add them to a + custom file like /etc/modprobe.conf.local. + 2.2. Device nodes for user space programs ------------------------------------ The device can be accessed from user space (eg. by the user space tools @@ -93,11 +109,48 @@ GigaSet 307x Device Driver - /dev/ttyGU0 for M105 (USB data boxes) - /dev/ttyGB0 for the base driver (direct USB connection) - You can also select a "default device" which is used by the frontends when + If you connect more than one device of a type, they will get consecutive + device nodes, eg. /dev/ttyGU1 for a second M105. + + You can also set a "default device" for the user space tools to use when no device node is given as parameter, by creating a symlink /dev/ttyG to one of them, eg.: - ln -s /dev/ttyGB0 /dev/ttyG + ln -s /dev/ttyGB0 /dev/ttyG + + The devices accept the following device specific ioctl calls + (defined in gigaset_dev.h): + + ioctl(int fd, GIGASET_REDIR, int *cmd); + If cmd==1, the device is set to be controlled exclusively through the + character device node; access from the ISDN subsystem is blocked. + If cmd==0, the device is set to be used from the ISDN subsystem and does + not communicate through the character device node. + + ioctl(int fd, GIGASET_CONFIG, int *cmd); + (ser_gigaset and usb_gigaset only) + If cmd==1, the device is set to adapter configuration mode where commands + are interpreted by the M10x DECT adapter itself instead of being + forwarded to the base station. In this mode, the device accepts the + commands described in Siemens document "AT-Kommando Alignment M10x Data" + for setting the operation mode, associating with a base station and + querying parameters like field strengh and signal quality. + Note that there is no ioctl command for leaving adapter configuration + mode and returning to regular operation. In order to leave adapter + configuration mode, write the command ATO to the device. + + ioctl(int fd, GIGASET_BRKCHARS, unsigned char brkchars[6]); + (usb_gigaset only) + Set the break characters on an M105's internal serial adapter to the six + bytes stored in brkchars[]. Unused bytes should be set to zero. + + ioctl(int fd, GIGASET_VERSION, unsigned version[4]); + Retrieve version information from the driver. version[0] must be set to + one of: + - GIGVER_DRIVER: retrieve driver version + - GIGVER_COMPAT: retrieve interface compatibility version + - GIGVER_FWBASE: retrieve the firmware version of the base + Upon return, version[] is filled with the requested version information. 2.3. ISDN4linux ---------- @@ -113,15 +166,24 @@ GigaSet 307x Device Driver Connection State: 0, Response: -1 gigaset_process_response: resp_code -1 in ConState 0 ! Timeout occurred - you might need to use unimodem mode. (see section 2.5.) + you probably need to use unimodem mode. (see section 2.5.) 2.4. CAPI ---- If the driver is compiled with CAPI support (kernel configuration option GIGASET_CAPI, experimental) it can also be used with CAPI 2.0 kernel and - user space applications. ISDN4Linux is supported in this configuration + user space applications. For user space access, the module capi.ko must + be loaded. The capiinit command (included in the capi4k-utils package) + does this for you. + + The CAPI variant of the driver supports legacy ISDN4Linux applications via the capidrv compatibility driver. The kernel module capidrv.ko must - be loaded explicitly ("modprobe capidrv") if needed. + be loaded explicitly with the command + modprobe capidrv + if needed, and cannot be unloaded again without unloading the driver + first. (These are limitations of capidrv.) + + The note about unimodem mode in the preceding section applies here, too. 2.5. Unimodem mode ------------- @@ -134,9 +196,14 @@ GigaSet 307x Device Driver You can switch back using gigacontr --mode isdn - You can also load the driver using e.g. - modprobe usb_gigaset startmode=0 - to prevent the driver from starting in "isdn4linux mode". + You can also put the driver directly into Unimodem mode when it's loaded, + by passing the module parameter startmode=0 to the hardware specific + module, e.g. + modprobe usb_gigaset startmode=0 + or by adding a line like + options usb_gigaset startmode=0 + to an appropriate module configuration file, like /etc/modprobe.d/gigaset + or /etc/modprobe.conf.local. In this mode the device works like a modem connected to a serial port (the /dev/ttyGU0, ... mentioned above) which understands the commands @@ -164,9 +231,8 @@ GigaSet 307x Device Driver options ppp_async flag_time=0 - to /etc/modprobe.conf. If your distribution has some local module - configuration file like /etc/modprobe.conf.local, - using that should be preferred. + to an appropriate module configuration file, like /etc/modprobe.d/gigaset + or /etc/modprobe.conf.local. 2.6. Call-ID (CID) mode ------------------ @@ -189,12 +255,13 @@ GigaSet 307x Device Driver settings (CID mode). - If you have several DECT data devices (M10x) which you want to use in turn, select Unimodem mode by passing the parameter "cidmode=0" to - the driver ("modprobe usb_gigaset cidmode=0" or modprobe.conf). + the appropriate driver module (ser_gigaset or usb_gigaset). If you want both of these at once, you are out of luck. - You can also use /sys/class/tty/ttyGxy/cidmode for changing the CID mode - setting (ttyGxy is ttyGU0 or ttyGB0). + You can also use the tty class parameter "cidmode" of the device to + change its CID mode while the driver is loaded, eg. + echo 0 > /sys/class/tty/ttyGU0/cidmode 2.7. Unregistered Wireless Devices (M101/M105) ----------------------------------------- @@ -208,7 +275,7 @@ GigaSet 307x Device Driver driver. In that situation, a restricted set of functions is available which includes, in particular, those necessary for registering the device to a base or for switching it between Fixed Part and Portable Part - modes. + modes. See the gigacontr(8) manpage for details. 3. Troubleshooting --------------- @@ -222,9 +289,7 @@ GigaSet 307x Device Driver options isdn dialtimeout=15 - to /etc/modprobe.conf. If your distribution has some local module - configuration file like /etc/modprobe.conf.local, - using that should be preferred. + to /etc/modprobe.d/gigaset, /etc/modprobe.conf.local or a similar file. Problem: Your isdn script aborts with a message about isdnlog. @@ -264,7 +329,8 @@ GigaSet 307x Device Driver The initial value can be set using the debug parameter when loading the module "gigaset", e.g. by adding a line options gigaset debug=0 - to /etc/modprobe.conf, ... + to your module configuration file, eg. /etc/modprobe.d/gigaset or + /etc/modprobe.conf.local. Generated debugging information can be found - as output of the command diff --git a/include/linux/gigaset_dev.h b/include/linux/gigaset_dev.h index 5dc4a316ca3..258ba82937e 100644 --- a/include/linux/gigaset_dev.h +++ b/include/linux/gigaset_dev.h @@ -16,15 +16,23 @@ #include +/* The magic IOCTL value for this interface. */ #define GIGASET_IOCTL 0x47 -#define GIGVER_DRIVER 0 -#define GIGVER_COMPAT 1 -#define GIGVER_FWBASE 2 +/* enable/disable device control via character device (lock out ISDN subsys) */ +#define GIGASET_REDIR _IOWR(GIGASET_IOCTL, 0, int) -#define GIGASET_REDIR _IOWR (GIGASET_IOCTL, 0, int) -#define GIGASET_CONFIG _IOWR (GIGASET_IOCTL, 1, int) -#define GIGASET_BRKCHARS _IOW (GIGASET_IOCTL, 2, unsigned char[6]) //FIXME [6] okay? -#define GIGASET_VERSION _IOWR (GIGASET_IOCTL, 3, unsigned[4]) +/* enable adapter configuration mode (M10x only) */ +#define GIGASET_CONFIG _IOWR(GIGASET_IOCTL, 1, int) + +/* set break characters (M105 only) */ +#define GIGASET_BRKCHARS _IOW(GIGASET_IOCTL, 2, unsigned char[6]) + +/* get version information selected by arg[0] */ +#define GIGASET_VERSION _IOWR(GIGASET_IOCTL, 3, unsigned[4]) +/* values for GIGASET_VERSION arg[0] */ +#define GIGVER_DRIVER 0 /* get driver version */ +#define GIGVER_COMPAT 1 /* get interface compatibility version */ +#define GIGVER_FWBASE 2 /* get base station firmware version */ #endif -- cgit v1.2.3-70-g09d2 From a29ec08a1b649436248c140a3bc389bc11434c94 Mon Sep 17 00:00:00 2001 From: Denis Kirjanov Date: Tue, 8 Dec 2009 20:36:00 -0800 Subject: mv643xx_eth: check for valid hw address (resubmit) Check for valid hw address. Signed-off-by: Denis Kirjanov Signed-off-by: David S. Miller --- drivers/net/mv643xx_eth.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c index 796a493f95a..1405a170bb4 100644 --- a/drivers/net/mv643xx_eth.c +++ b/drivers/net/mv643xx_eth.c @@ -1827,6 +1827,9 @@ static int mv643xx_eth_set_mac_address(struct net_device *dev, void *addr) { struct sockaddr *sa = addr; + if (!is_valid_ether_addr(sa->sa_data)) + return -EINVAL; + memcpy(dev->dev_addr, sa->sa_data, ETH_ALEN); netif_addr_lock_bh(dev); -- cgit v1.2.3-70-g09d2 From 6f7714196b4e01d7462df31d705c3ca53ecbdfc1 Mon Sep 17 00:00:00 2001 From: Amit Kumar Salecha Date: Sat, 5 Dec 2009 12:23:54 +0000 Subject: netxen: protect device reset by rtnl_lock o To prevent race conditions with other reset events. During suspend/resume and firmware recovery, acquire rtnl_lock, while changing interface state. Acked-by: Dhananjay Phadke Signed-off-by: Amit Kumar Salecha Signed-off-by: David S. Miller --- drivers/net/netxen/netxen_nic_main.c | 43 +++++++++++++++++++++++++++++------- 1 file changed, 35 insertions(+), 8 deletions(-) diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c index e5d187fce51..8ffb30bc798 100644 --- a/drivers/net/netxen/netxen_nic_main.c +++ b/drivers/net/netxen/netxen_nic_main.c @@ -946,8 +946,9 @@ netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter) NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS; } +/* with rtnl_lock */ static int -netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev) +__netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev) { int err; @@ -988,8 +989,24 @@ netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev) return 0; } +/* Usage: During resume and firmware recovery module.*/ + +static inline int +netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev) +{ + int err = 0; + + rtnl_lock(); + if (netif_running(netdev)) + err = __netxen_nic_up(adapter, netdev); + rtnl_unlock(); + + return err; +} + +/* with rtnl_lock */ static void -netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) +__netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) { if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) return; @@ -1014,6 +1031,17 @@ netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) spin_unlock(&adapter->tx_clean_lock); } +/* Usage: During suspend and firmware recovery module */ + +static inline void +netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) +{ + rtnl_lock(); + if (netif_running(netdev)) + __netxen_nic_down(adapter, netdev); + rtnl_unlock(); + +} static int netxen_nic_attach(struct netxen_adapter *adapter) @@ -1122,14 +1150,14 @@ netxen_nic_reset_context(struct netxen_adapter *adapter) netif_device_detach(netdev); if (netif_running(netdev)) - netxen_nic_down(adapter, netdev); + __netxen_nic_down(adapter, netdev); netxen_nic_detach(adapter); if (netif_running(netdev)) { err = netxen_nic_attach(adapter); if (!err) - err = netxen_nic_up(adapter, netdev); + err = __netxen_nic_up(adapter, netdev); if (err) goto done; @@ -1499,7 +1527,7 @@ static int netxen_nic_open(struct net_device *netdev) if (err) return err; - err = netxen_nic_up(adapter, netdev); + err = __netxen_nic_up(adapter, netdev); if (err) goto err_out; @@ -1519,7 +1547,7 @@ static int netxen_nic_close(struct net_device *netdev) { struct netxen_adapter *adapter = netdev_priv(netdev); - netxen_nic_down(adapter, netdev); + __netxen_nic_down(adapter, netdev); return 0; } @@ -2210,8 +2238,7 @@ netxen_detach_work(struct work_struct *work) netif_device_detach(netdev); - if (netif_running(netdev)) - netxen_nic_down(adapter, netdev); + netxen_nic_down(adapter, netdev); netxen_nic_detach(adapter); -- cgit v1.2.3-70-g09d2 From f2251f668e9527b87c9ba7256e7497cb49abbc20 Mon Sep 17 00:00:00 2001 From: Amit Kumar Salecha Date: Sat, 5 Dec 2009 12:23:55 +0000 Subject: netxen:fix napi intr enable check o netif_running() check for enabling interrupt at end of napi poll is not enough to cover firmwar recovery. Instead test __NX_DEV_UP bit. o Avoid re-entry into to netxen_nic_down() with __NX_DEV_UP bit check. Acked-by: Dhananjay Phadke Signed-off-by: Amit Kumar Salecha Signed-off-by: David S. Miller --- drivers/net/netxen/netxen_nic_main.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c index 8ffb30bc798..f4996846a23 100644 --- a/drivers/net/netxen/netxen_nic_main.c +++ b/drivers/net/netxen/netxen_nic_main.c @@ -1011,8 +1011,10 @@ __netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) return; - clear_bit(__NX_DEV_UP, &adapter->state); + if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state)) + return; + smp_mb(); spin_lock(&adapter->tx_clean_lock); netif_carrier_off(netdev); netif_tx_disable(netdev); @@ -2053,7 +2055,7 @@ static int netxen_nic_poll(struct napi_struct *napi, int budget) if ((work_done < budget) && tx_complete) { napi_complete(&sds_ring->napi); - if (netif_running(adapter->netdev)) + if (test_bit(__NX_DEV_UP, &adapter->state)) netxen_nic_enable_int(sds_ring); } -- cgit v1.2.3-70-g09d2 From 634d7df89a93a52561f598bf9512f4cf72946954 Mon Sep 17 00:00:00 2001 From: Dhananjay Phadke Date: Sat, 5 Dec 2009 12:23:56 +0000 Subject: netxen: fix firmware type check Unified firmware image may not contain MN type of firmware. Driver should fall back to NOMN firmware type instead of going to flash. Signed-off-by: Dhananjay Phadke Signed-off-by: Amit Kumar Salecha Signed-off-by: David S. Miller --- drivers/net/netxen/netxen_nic_init.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/net/netxen/netxen_nic_init.c b/drivers/net/netxen/netxen_nic_init.c index 80a66746051..02f8d4b4db6 100644 --- a/drivers/net/netxen/netxen_nic_init.c +++ b/drivers/net/netxen/netxen_nic_init.c @@ -619,17 +619,20 @@ nx_set_product_offs(struct netxen_adapter *adapter) uint32_t i; __le32 entries; + int mn_present = (NX_IS_REVISION_P2(adapter->ahw.revision_id)) ? + 1 : netxen_p3_has_mn(adapter); + ptab_descr = nx_get_table_desc(unirom, NX_UNI_DIR_SECT_PRODUCT_TBL); if (ptab_descr == NULL) return -1; entries = cpu_to_le32(ptab_descr->num_entries); +nomn: for (i = 0; i < entries; i++) { __le32 flags, file_chiprev, offs; u8 chiprev = adapter->ahw.revision_id; - int mn_present = netxen_p3_has_mn(adapter); uint32_t flagbit; offs = cpu_to_le32(ptab_descr->findex) + @@ -647,6 +650,11 @@ nx_set_product_offs(struct netxen_adapter *adapter) } } + if (mn_present && NX_IS_REVISION_P3(adapter->ahw.revision_id)) { + mn_present = 0; + goto nomn; + } + return -1; } @@ -1021,6 +1029,10 @@ netxen_p3_has_mn(struct netxen_adapter *adapter) u32 capability, flashed_ver; capability = 0; + /* NX2031 always had MN */ + if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) + return 1; + netxen_rom_fast_read(adapter, NX_FW_VERSION_OFFSET, (int *)&flashed_ver); flashed_ver = NETXEN_DECODE_VERSION(flashed_ver); -- cgit v1.2.3-70-g09d2 From b38310e99ed09163062902285edd6d7b3fc136d6 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Sun, 6 Dec 2009 10:35:30 +0000 Subject: include/linux/if_ether.h: Remove unused defines MAC_BUF_SIZE and DECLARE_MAC_BUF Signed-off-by: Joe Perches Signed-off-by: David S. Miller --- include/linux/if_ether.h | 2 -- 1 file changed, 2 deletions(-) diff --git a/include/linux/if_ether.h b/include/linux/if_ether.h index 005e1525ab8..299b4121f91 100644 --- a/include/linux/if_ether.h +++ b/include/linux/if_ether.h @@ -137,8 +137,6 @@ extern struct ctl_table ether_table[]; extern ssize_t sysfs_format_mac(char *buf, const unsigned char *addr, int len); #define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x" -#define MAC_BUF_SIZE 18 -#define DECLARE_MAC_BUF(var) char var[MAC_BUF_SIZE] #endif -- cgit v1.2.3-70-g09d2 From 4b45e3424e7210688f95039b8cdffb11d2e48934 Mon Sep 17 00:00:00 2001 From: Jie Yang Date: Sun, 6 Dec 2009 22:56:59 +0000 Subject: atl1c:add pci map direction in atl1c_buffer flags add pci map direction in atl1c_buffer flags, it is used when call pci_unmap apis. Signed-off-by: Jie Yang Signed-off-by: David S. Miller --- drivers/net/atl1c/atl1c.h | 11 ++++++++--- drivers/net/atl1c/atl1c_main.c | 22 ++++++++++++++++------ 2 files changed, 24 insertions(+), 9 deletions(-) diff --git a/drivers/net/atl1c/atl1c.h b/drivers/net/atl1c/atl1c.h index a348a22551d..7e09084f75a 100644 --- a/drivers/net/atl1c/atl1c.h +++ b/drivers/net/atl1c/atl1c.h @@ -479,6 +479,9 @@ struct atl1c_buffer { #define ATL1C_PCIMAP_PAGE 0x0008 #define ATL1C_PCIMAP_TYPE_MASK 0x000C +#define ATL1C_PCIMAP_TODEVICE 0x0010 +#define ATL1C_PCIMAP_FROMDEVICE 0x0020 +#define ATL1C_PCIMAP_DIRECTION_MASK 0x0030 dma_addr_t dma; }; @@ -487,9 +490,11 @@ struct atl1c_buffer { ((buff)->flags) |= (state); \ } while (0) -#define ATL1C_SET_PCIMAP_TYPE(buff, type) do { \ - ((buff)->flags) &= ~ATL1C_PCIMAP_TYPE_MASK; \ - ((buff)->flags) |= (type); \ +#define ATL1C_SET_PCIMAP_TYPE(buff, type, direction) do { \ + ((buff)->flags) &= ~ATL1C_PCIMAP_TYPE_MASK; \ + ((buff)->flags) |= (type); \ + ((buff)->flags) &= ~ATL1C_PCIMAP_DIRECTION_MASK; \ + ((buff)->flags) |= (direction); \ } while (0) /* transimit packet descriptor (tpd) ring */ diff --git a/drivers/net/atl1c/atl1c_main.c b/drivers/net/atl1c/atl1c_main.c index 1e2f57d4c36..1098dad3d38 100644 --- a/drivers/net/atl1c/atl1c_main.c +++ b/drivers/net/atl1c/atl1c_main.c @@ -713,15 +713,21 @@ static int __devinit atl1c_sw_init(struct atl1c_adapter *adapter) static inline void atl1c_clean_buffer(struct pci_dev *pdev, struct atl1c_buffer *buffer_info, int in_irq) { + u16 pci_driection; if (buffer_info->flags & ATL1C_BUFFER_FREE) return; if (buffer_info->dma) { + if (buffer_info->flags & ATL1C_PCIMAP_FROMDEVICE) + pci_driection = PCI_DMA_FROMDEVICE; + else + pci_driection = PCI_DMA_TODEVICE; + if (buffer_info->flags & ATL1C_PCIMAP_SINGLE) pci_unmap_single(pdev, buffer_info->dma, - buffer_info->length, PCI_DMA_TODEVICE); + buffer_info->length, pci_driection); else if (buffer_info->flags & ATL1C_PCIMAP_PAGE) pci_unmap_page(pdev, buffer_info->dma, - buffer_info->length, PCI_DMA_TODEVICE); + buffer_info->length, pci_driection); } if (buffer_info->skb) { if (in_irq) @@ -1606,7 +1612,8 @@ static int atl1c_alloc_rx_buffer(struct atl1c_adapter *adapter, const int ringid buffer_info->dma = pci_map_single(pdev, vir_addr, buffer_info->length, PCI_DMA_FROMDEVICE); - ATL1C_SET_PCIMAP_TYPE(buffer_info, ATL1C_PCIMAP_SINGLE); + ATL1C_SET_PCIMAP_TYPE(buffer_info, ATL1C_PCIMAP_SINGLE, + ATL1C_PCIMAP_FROMDEVICE); rfd_desc->buffer_addr = cpu_to_le64(buffer_info->dma); rfd_next_to_use = next_next; if (++next_next == rfd_ring->count) @@ -1967,7 +1974,8 @@ static void atl1c_tx_map(struct atl1c_adapter *adapter, buffer_info->dma = pci_map_single(adapter->pdev, skb->data, hdr_len, PCI_DMA_TODEVICE); ATL1C_SET_BUFFER_STATE(buffer_info, ATL1C_BUFFER_BUSY); - ATL1C_SET_PCIMAP_TYPE(buffer_info, ATL1C_PCIMAP_SINGLE); + ATL1C_SET_PCIMAP_TYPE(buffer_info, ATL1C_PCIMAP_SINGLE, + ATL1C_PCIMAP_TODEVICE); mapped_len += map_len; use_tpd->buffer_addr = cpu_to_le64(buffer_info->dma); use_tpd->buffer_len = cpu_to_le16(buffer_info->length); @@ -1988,7 +1996,8 @@ static void atl1c_tx_map(struct atl1c_adapter *adapter, pci_map_single(adapter->pdev, skb->data + mapped_len, buffer_info->length, PCI_DMA_TODEVICE); ATL1C_SET_BUFFER_STATE(buffer_info, ATL1C_BUFFER_BUSY); - ATL1C_SET_PCIMAP_TYPE(buffer_info, ATL1C_PCIMAP_SINGLE); + ATL1C_SET_PCIMAP_TYPE(buffer_info, ATL1C_PCIMAP_SINGLE, + ATL1C_PCIMAP_TODEVICE); use_tpd->buffer_addr = cpu_to_le64(buffer_info->dma); use_tpd->buffer_len = cpu_to_le16(buffer_info->length); } @@ -2009,7 +2018,8 @@ static void atl1c_tx_map(struct atl1c_adapter *adapter, buffer_info->length, PCI_DMA_TODEVICE); ATL1C_SET_BUFFER_STATE(buffer_info, ATL1C_BUFFER_BUSY); - ATL1C_SET_PCIMAP_TYPE(buffer_info, ATL1C_PCIMAP_PAGE); + ATL1C_SET_PCIMAP_TYPE(buffer_info, ATL1C_PCIMAP_PAGE, + ATL1C_PCIMAP_TODEVICE); use_tpd->buffer_addr = cpu_to_le64(buffer_info->dma); use_tpd->buffer_len = cpu_to_le16(buffer_info->length); } -- cgit v1.2.3-70-g09d2 From cb19054697e92a793f336380fd72c588521178ff Mon Sep 17 00:00:00 2001 From: Jie Yang Date: Sun, 6 Dec 2009 23:16:58 +0000 Subject: atl1c:use common_task instead of reset_task and link_chg_task use common_task instead of reset_task and link_chg_task, so it fix "call cancel_work_sync from the work itself". Signed-off-by: Jie Yang Signed-off-by: David S. Miller --- drivers/net/atl1c/atl1c.h | 6 ++-- drivers/net/atl1c/atl1c_main.c | 72 +++++++++++++++++++----------------------- 2 files changed, 37 insertions(+), 41 deletions(-) diff --git a/drivers/net/atl1c/atl1c.h b/drivers/net/atl1c/atl1c.h index 7e09084f75a..efe5435bc3d 100644 --- a/drivers/net/atl1c/atl1c.h +++ b/drivers/net/atl1c/atl1c.h @@ -555,6 +555,9 @@ struct atl1c_adapter { #define __AT_TESTING 0x0001 #define __AT_RESETTING 0x0002 #define __AT_DOWN 0x0003 + u8 work_event; +#define ATL1C_WORK_EVENT_RESET 0x01 +#define ATL1C_WORK_EVENT_LINK_CHANGE 0x02 u32 msg_enable; bool have_msi; @@ -566,8 +569,7 @@ struct atl1c_adapter { spinlock_t tx_lock; atomic_t irq_sem; - struct work_struct reset_task; - struct work_struct link_chg_task; + struct work_struct common_task; struct timer_list watchdog_timer; struct timer_list phy_config_timer; diff --git a/drivers/net/atl1c/atl1c_main.c b/drivers/net/atl1c/atl1c_main.c index 1098dad3d38..666261b5851 100644 --- a/drivers/net/atl1c/atl1c_main.c +++ b/drivers/net/atl1c/atl1c_main.c @@ -198,27 +198,12 @@ static void atl1c_phy_config(unsigned long data) void atl1c_reinit_locked(struct atl1c_adapter *adapter) { - WARN_ON(in_interrupt()); atl1c_down(adapter); atl1c_up(adapter); clear_bit(__AT_RESETTING, &adapter->flags); } -static void atl1c_reset_task(struct work_struct *work) -{ - struct atl1c_adapter *adapter; - struct net_device *netdev; - - adapter = container_of(work, struct atl1c_adapter, reset_task); - netdev = adapter->netdev; - - netif_device_detach(netdev); - atl1c_down(adapter); - atl1c_up(adapter); - netif_device_attach(netdev); -} - static void atl1c_check_link_status(struct atl1c_adapter *adapter) { struct atl1c_hw *hw = &adapter->hw; @@ -275,18 +260,6 @@ static void atl1c_check_link_status(struct atl1c_adapter *adapter) } } -/* - * atl1c_link_chg_task - deal with link change event Out of interrupt context - * @netdev: network interface device structure - */ -static void atl1c_link_chg_task(struct work_struct *work) -{ - struct atl1c_adapter *adapter; - - adapter = container_of(work, struct atl1c_adapter, link_chg_task); - atl1c_check_link_status(adapter); -} - static void atl1c_link_chg_event(struct atl1c_adapter *adapter) { struct net_device *netdev = adapter->netdev; @@ -311,20 +284,40 @@ static void atl1c_link_chg_event(struct atl1c_adapter *adapter) adapter->link_speed = SPEED_0; } } - schedule_work(&adapter->link_chg_task); + + adapter->work_event |= ATL1C_WORK_EVENT_LINK_CHANGE; + schedule_work(&adapter->common_task); } -static void atl1c_del_timer(struct atl1c_adapter *adapter) +static void atl1c_common_task(struct work_struct *work) { - del_timer_sync(&adapter->phy_config_timer); + struct atl1c_adapter *adapter; + struct net_device *netdev; + + adapter = container_of(work, struct atl1c_adapter, common_task); + netdev = adapter->netdev; + + if (adapter->work_event & ATL1C_WORK_EVENT_RESET) { + netif_device_detach(netdev); + atl1c_down(adapter); + atl1c_up(adapter); + netif_device_attach(netdev); + return; + } + + if (adapter->work_event & ATL1C_WORK_EVENT_LINK_CHANGE) + atl1c_check_link_status(adapter); + + return; } -static void atl1c_cancel_work(struct atl1c_adapter *adapter) + +static void atl1c_del_timer(struct atl1c_adapter *adapter) { - cancel_work_sync(&adapter->reset_task); - cancel_work_sync(&adapter->link_chg_task); + del_timer_sync(&adapter->phy_config_timer); } + /* * atl1c_tx_timeout - Respond to a Tx Hang * @netdev: network interface device structure @@ -334,7 +327,8 @@ static void atl1c_tx_timeout(struct net_device *netdev) struct atl1c_adapter *adapter = netdev_priv(netdev); /* Do the reset outside of interrupt context */ - schedule_work(&adapter->reset_task); + adapter->work_event |= ATL1C_WORK_EVENT_RESET; + schedule_work(&adapter->common_task); } /* @@ -1539,7 +1533,8 @@ static irqreturn_t atl1c_intr(int irq, void *data) /* reset MAC */ hw->intr_mask &= ~ISR_ERROR; AT_WRITE_REG(hw, REG_IMR, hw->intr_mask); - schedule_work(&adapter->reset_task); + adapter->work_event |= ATL1C_WORK_EVENT_RESET; + schedule_work(&adapter->common_task); break; } @@ -2208,8 +2203,7 @@ void atl1c_down(struct atl1c_adapter *adapter) struct net_device *netdev = adapter->netdev; atl1c_del_timer(adapter); - atl1c_cancel_work(adapter); - + adapter->work_event = 0; /* clear all event */ /* signal that we're down so the interrupt handler does not * reschedule our watchdog timer */ set_bit(__AT_DOWN, &adapter->flags); @@ -2609,8 +2603,8 @@ static int __devinit atl1c_probe(struct pci_dev *pdev, adapter->hw.mac_addr[4], adapter->hw.mac_addr[5]); atl1c_hw_set_mac_addr(&adapter->hw); - INIT_WORK(&adapter->reset_task, atl1c_reset_task); - INIT_WORK(&adapter->link_chg_task, atl1c_link_chg_task); + INIT_WORK(&adapter->common_task, atl1c_common_task); + adapter->work_event = 0; err = register_netdev(netdev); if (err) { dev_err(&pdev->dev, "register netdevice failed\n"); -- cgit v1.2.3-70-g09d2 From 07f29bc5bbae4e53e982ab956fed7207990a7786 Mon Sep 17 00:00:00 2001 From: Damian Lukowski Date: Mon, 7 Dec 2009 06:06:15 +0000 Subject: tcp: Stalling connections: Fix timeout calculation routine MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch fixes a problem in the TCP connection timeout calculation. Currently, timeout decisions are made on the basis of the current tcp_time_stamp and retrans_stamp, which is usually set at the first retransmission. However, if the retransmission fails in tcp_retransmit_skb(), retrans_stamp is not updated and remains zero. This leads to wrong decisions in retransmits_timed_out() if tcp_time_stamp is larger than the specified timeout, which is very likely. In this case, the TCP connection dies after the first attempted (and unsuccessful) retransmission. With this patch, tcp_skb_cb->when is used instead, when retrans_stamp is not available. This bug has been introduced together with retransmits_timed_out() in 2.6.32, as the number of retransmissions has been used for timeout decisions before. The corresponding commit was 6fa12c85031485dff38ce550c24f10da23b0adaa (Revert Backoff [v3]: Calculate TCP's connection close threshold as a time value.). Thanks to Ilpo Järvinen for code suggestions and Frederic Leroy for testing. Reported-by: Frederic Leroy Signed-off-by: Damian Lukowski Acked-by: Ilpo Järvinen Signed-off-by: David S. Miller --- include/net/tcp.h | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/include/net/tcp.h b/include/net/tcp.h index e2d2ca2509b..e54bd85d9d4 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -1265,14 +1265,20 @@ static inline struct sk_buff *tcp_write_queue_prev(struct sock *sk, struct sk_bu * TCP connection after "boundary" unsucessful, exponentially backed-off * retransmissions with an initial RTO of TCP_RTO_MIN. */ -static inline bool retransmits_timed_out(const struct sock *sk, +static inline bool retransmits_timed_out(struct sock *sk, unsigned int boundary) { unsigned int timeout, linear_backoff_thresh; + unsigned int start_ts; if (!inet_csk(sk)->icsk_retransmits) return false; + if (unlikely(!tcp_sk(sk)->retrans_stamp)) + start_ts = TCP_SKB_CB(tcp_write_queue_head(sk))->when; + else + start_ts = tcp_sk(sk)->retrans_stamp; + linear_backoff_thresh = ilog2(TCP_RTO_MAX/TCP_RTO_MIN); if (boundary <= linear_backoff_thresh) @@ -1281,7 +1287,7 @@ static inline bool retransmits_timed_out(const struct sock *sk, timeout = ((2 << linear_backoff_thresh) - 1) * TCP_RTO_MIN + (boundary - linear_backoff_thresh) * TCP_RTO_MAX; - return (tcp_time_stamp - tcp_sk(sk)->retrans_stamp) >= timeout; + return (tcp_time_stamp - start_ts) >= timeout; } static inline struct sk_buff *tcp_send_head(struct sock *sk) -- cgit v1.2.3-70-g09d2 From 2f7de5710a4d394920405febc2a9937c69e16dda Mon Sep 17 00:00:00 2001 From: Damian Lukowski Date: Mon, 7 Dec 2009 06:06:16 +0000 Subject: tcp: Stalling connections: Move timeout calculation routine MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch moves retransmits_timed_out() from include/net/tcp.h to tcp_timer.c, where it is used. Reported-by: Frederic Leroy Signed-off-by: Damian Lukowski Acked-by: Ilpo Järvinen Signed-off-by: David S. Miller --- include/net/tcp.h | 28 ---------------------------- net/ipv4/tcp_timer.c | 29 +++++++++++++++++++++++++++++ 2 files changed, 29 insertions(+), 28 deletions(-) diff --git a/include/net/tcp.h b/include/net/tcp.h index e54bd85d9d4..0248c181a92 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -1261,34 +1261,6 @@ static inline struct sk_buff *tcp_write_queue_prev(struct sock *sk, struct sk_bu #define tcp_for_write_queue_from_safe(skb, tmp, sk) \ skb_queue_walk_from_safe(&(sk)->sk_write_queue, skb, tmp) -/* This function calculates a "timeout" which is equivalent to the timeout of a - * TCP connection after "boundary" unsucessful, exponentially backed-off - * retransmissions with an initial RTO of TCP_RTO_MIN. - */ -static inline bool retransmits_timed_out(struct sock *sk, - unsigned int boundary) -{ - unsigned int timeout, linear_backoff_thresh; - unsigned int start_ts; - - if (!inet_csk(sk)->icsk_retransmits) - return false; - - if (unlikely(!tcp_sk(sk)->retrans_stamp)) - start_ts = TCP_SKB_CB(tcp_write_queue_head(sk))->when; - else - start_ts = tcp_sk(sk)->retrans_stamp; - - linear_backoff_thresh = ilog2(TCP_RTO_MAX/TCP_RTO_MIN); - - if (boundary <= linear_backoff_thresh) - timeout = ((2 << boundary) - 1) * TCP_RTO_MIN; - else - timeout = ((2 << linear_backoff_thresh) - 1) * TCP_RTO_MIN + - (boundary - linear_backoff_thresh) * TCP_RTO_MAX; - - return (tcp_time_stamp - start_ts) >= timeout; -} static inline struct sk_buff *tcp_send_head(struct sock *sk) { diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c index 8353a538cd4..8816a20c259 100644 --- a/net/ipv4/tcp_timer.c +++ b/net/ipv4/tcp_timer.c @@ -132,6 +132,35 @@ static void tcp_mtu_probing(struct inet_connection_sock *icsk, struct sock *sk) } } +/* This function calculates a "timeout" which is equivalent to the timeout of a + * TCP connection after "boundary" unsucessful, exponentially backed-off + * retransmissions with an initial RTO of TCP_RTO_MIN. + */ +static bool retransmits_timed_out(struct sock *sk, + unsigned int boundary) +{ + unsigned int timeout, linear_backoff_thresh; + unsigned int start_ts; + + if (!inet_csk(sk)->icsk_retransmits) + return false; + + if (unlikely(!tcp_sk(sk)->retrans_stamp)) + start_ts = TCP_SKB_CB(tcp_write_queue_head(sk))->when; + else + start_ts = tcp_sk(sk)->retrans_stamp; + + linear_backoff_thresh = ilog2(TCP_RTO_MAX/TCP_RTO_MIN); + + if (boundary <= linear_backoff_thresh) + timeout = ((2 << boundary) - 1) * TCP_RTO_MIN; + else + timeout = ((2 << linear_backoff_thresh) - 1) * TCP_RTO_MIN + + (boundary - linear_backoff_thresh) * TCP_RTO_MAX; + + return (tcp_time_stamp - start_ts) >= timeout; +} + /* A write timeout has occurred. Process the after effects. */ static int tcp_write_timeout(struct sock *sk) { -- cgit v1.2.3-70-g09d2 From 77722b177a1606669c0b95dde03347e37d13b8fe Mon Sep 17 00:00:00 2001 From: Ilpo Järvinen Date: Tue, 8 Dec 2009 20:54:11 -0800 Subject: tcp: fix retrans_stamp advancing in error cases MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit It can happen, that tcp_retransmit_skb fails due to some error. In such cases we might end up into a state where tp->retrans_out is zero but that's only because we removed the TCPCB_SACKED_RETRANS bit from a segment but couldn't retransmit it because of the error that happened. Therefore some assumptions that retrans_out checks are based do not necessarily hold, as there still can be an old retransmission but that is only visible in TCPCB_EVER_RETRANS bit. As retransmission happen in sequential order (except for some very rare corner cases), it's enough to check the head skb for that bit. Main reason for all this complexity is the fact that connection dying time now depends on the validity of the retrans_stamp, in particular, that successive retransmissions of a segment must not advance retrans_stamp under any conditions. It seems after quick thinking that this has relatively low impact as eventually TCP will go into CA_Loss and either use the existing check for !retrans_stamp case or send a retransmission successfully, setting a new base time for the dying timer (can happen only once). At worst, the dying time will be approximately the double of the intented time. In addition, tcp_packet_delayed() will return wrong result (has some cc aspects but due to rarity of these errors, it's hardly an issue). One of retrans_stamp clearing happens indirectly through first going into CA_Open state and then a later ACK lets the clearing to happen. Thus tcp_try_keep_open has to be modified too. Thanks to Damian Lukowski for hinting that this possibility exists (though the particular case discussed didn't after all have it happening but was just a debug patch artifact). Signed-off-by: Ilpo Järvinen Signed-off-by: David S. Miller --- net/ipv4/tcp_input.c | 35 ++++++++++++++++++++++++++++++++--- 1 file changed, 32 insertions(+), 3 deletions(-) diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 57ae96a0422..12cab7d74db 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -2717,6 +2717,35 @@ static void tcp_try_undo_dsack(struct sock *sk) } } +/* We can clear retrans_stamp when there are no retransmissions in the + * window. It would seem that it is trivially available for us in + * tp->retrans_out, however, that kind of assumptions doesn't consider + * what will happen if errors occur when sending retransmission for the + * second time. ...It could the that such segment has only + * TCPCB_EVER_RETRANS set at the present time. It seems that checking + * the head skb is enough except for some reneging corner cases that + * are not worth the effort. + * + * Main reason for all this complexity is the fact that connection dying + * time now depends on the validity of the retrans_stamp, in particular, + * that successive retransmissions of a segment must not advance + * retrans_stamp under any conditions. + */ +static int tcp_any_retrans_done(struct sock *sk) +{ + struct tcp_sock *tp = tcp_sk(sk); + struct sk_buff *skb; + + if (tp->retrans_out) + return 1; + + skb = tcp_write_queue_head(sk); + if (unlikely(skb && TCP_SKB_CB(skb)->sacked & TCPCB_EVER_RETRANS)) + return 1; + + return 0; +} + /* Undo during fast recovery after partial ACK. */ static int tcp_try_undo_partial(struct sock *sk, int acked) @@ -2729,7 +2758,7 @@ static int tcp_try_undo_partial(struct sock *sk, int acked) /* Plain luck! Hole if filled with delayed * packet, rather than with a retransmit. */ - if (tp->retrans_out == 0) + if (!tcp_any_retrans_done(sk)) tp->retrans_stamp = 0; tcp_update_reordering(sk, tcp_fackets_out(tp) + acked, 1); @@ -2788,7 +2817,7 @@ static void tcp_try_keep_open(struct sock *sk) struct tcp_sock *tp = tcp_sk(sk); int state = TCP_CA_Open; - if (tcp_left_out(tp) || tp->retrans_out || tp->undo_marker) + if (tcp_left_out(tp) || tcp_any_retrans_done(sk) || tp->undo_marker) state = TCP_CA_Disorder; if (inet_csk(sk)->icsk_ca_state != state) { @@ -2803,7 +2832,7 @@ static void tcp_try_to_open(struct sock *sk, int flag) tcp_verify_left_out(tp); - if (!tp->frto_counter && tp->retrans_out == 0) + if (!tp->frto_counter && !tcp_any_retrans_done(sk)) tp->retrans_stamp = 0; if (flag & FLAG_ECE) -- cgit v1.2.3-70-g09d2 From e0188829cb724e7d12a2d4e343b368ff1d6e1471 Mon Sep 17 00:00:00 2001 From: Stanislav Brabec Date: Tue, 8 Dec 2009 21:00:22 -0800 Subject: b44 WOL setup: one-bit-off stack corruption kernel panic fix About 50% of shutdowns of b44 Ethernet adapter ends by kernel panic with kernels compiled with stack-protector. Checking b44_magic_pattern() return values, one call of b44_magic_pattern() returns 127. It means, that set_bit(128, pmask) was called on line 1509. It means that bit 0 of 17th byte of pmask was overwritten. But pmask has only 16 bytes. Stack corruption happens. It seems that set_bit() on line 1509 always writes one bit off. The fix does not only solve the stack corruption, but also makes Wake On LAN working on my onboard B44 on Asus A7V-333X mainboard. It seems that this problem affects all kernel versions since commit 725ad800 ([PATCH] b44: add wol for old nic) on 2006-06-20. Signed-off-by: Stanislav Brabec Signed-off-by: David S. Miller --- drivers/net/b44.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/b44.c b/drivers/net/b44.c index 2a9132343b6..4869adb6958 100644 --- a/drivers/net/b44.c +++ b/drivers/net/b44.c @@ -1505,8 +1505,7 @@ static int b44_magic_pattern(u8 *macaddr, u8 *ppattern, u8 *pmask, int offset) for (k = 0; k< ethaddr_bytes; k++) { ppattern[offset + magicsync + (j * ETH_ALEN) + k] = macaddr[k]; - len++; - set_bit(len, (unsigned long *) pmask); + set_bit(len++, (unsigned long *) pmask); } } return len - 1; -- cgit v1.2.3-70-g09d2 From 43de004b6c197b0ea408bdebf4f14afdead74b63 Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Wed, 9 Dec 2009 02:52:19 -0800 Subject: gianfar: Fix build with CONFIG_NET_POLL_CONTROLLER=y commit 46ceb60ca80fa07703bc6eb8f4651f900dff5a82 ("gianfar: Add Multiple group Support") introduced the following build error with CONFIG_NET_POLL_CONTROLLER=y: CC ggianfar.o ggianfar.c: In function 'gfar_netpoll': ggianfar.c:2653: error: invalid storage class for function 'gfar_interrupt' ggianfar.c:2652: warning: ISO C90 forbids mixed declarations and code ggianfar.c:2681: error: invalid storage class for function 'adjust_link' ggianfar.c:2764: error: invalid storage class for function 'gfar_set_multi' ggianfar.c:2855: error: invalid storage class for function 'gfar_clear_exact_match' ggianfar.c:2877: error: invalid storage class for function 'gfar_set_hash_for_addr' ggianfar.c:2898: error: invalid storage class for function 'gfar_set_mac_for_addr' ggianfar.c:2922: error: invalid storage class for function 'gfar_error' ggianfar.c:3020: warning: ISO C90 forbids mixed declarations and code ggianfar.c:3032: error: invalid storage class for function 'gfar_init' ggianfar.c:3037: error: invalid storage class for function 'gfar_exit' ggianfar.c:3041: error: initializer element is not constant ggianfar.c:3042: error: initializer element is not constant ggianfar.c:3042: warning: ISO C90 forbids mixed declarations and code ggianfar.c:3042: error: expected declaration or statement at end of input make[1]: *** [ggianfar.o] Error 1 This patch fixes the issue. Reported-by: Benjamin Herrenschmidt Signed-off-by: Anton Vorontsov Signed-off-by: David S. Miller --- drivers/net/gianfar.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c index 16def131c39..6850dc0a7b9 100644 --- a/drivers/net/gianfar.c +++ b/drivers/net/gianfar.c @@ -2644,6 +2644,7 @@ static void gfar_netpoll(struct net_device *dev) gfar_interrupt(priv->gfargrp[i].interruptTransmit, &priv->gfargrp[i]); enable_irq(priv->gfargrp[i].interruptTransmit); + } } } #endif -- cgit v1.2.3-70-g09d2 From d55fb891f9da8ee17374349ff482b2715623b7e5 Mon Sep 17 00:00:00 2001 From: Vivek Natarajan Date: Tue, 24 Nov 2009 11:54:10 -0500 Subject: cfg80211: Clear encryption privacy when key off is done. When the current_bss is not set, 'iwconfig key off' does not clear the private flag. Hence after we connect with WEP to an AP and then try to connect with another non-WEP AP, it does not work. This issue will not be seen if supplicant is used. Signed-off-by: Vivek Natarajan Signed-off-by: John W. Linville --- net/wireless/wext-compat.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c index 584eb4826e0..54face3d442 100644 --- a/net/wireless/wext-compat.c +++ b/net/wireless/wext-compat.c @@ -479,6 +479,7 @@ static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev, } err = rdev->ops->del_key(&rdev->wiphy, dev, idx, addr); } + wdev->wext.connect.privacy = false; /* * Applications using wireless extensions expect to be * able to delete keys that don't exist, so allow that. -- cgit v1.2.3-70-g09d2 From 19deffbeba930030cfaf000b920333c6ba99ad52 Mon Sep 17 00:00:00 2001 From: "John W. Linville" Date: Tue, 8 Dec 2009 17:10:13 -0500 Subject: wireless: correctly report signal value for IEEE80211_HW_SIGNAL_UNSPEC This part was missed in "cfg80211: implement get_wireless_stats", probably because sta_set_sinfo already existed and was only handling dBm signals. Cc: stable@kernel.org Signed-off-by: John W. Linville --- net/mac80211/cfg.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 93ee1fd5c08..6dc3579c0ac 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -354,7 +354,8 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo) sinfo->rx_packets = sta->rx_packets; sinfo->tx_packets = sta->tx_packets; - if (sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) { + if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) || + (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) { sinfo->filled |= STATION_INFO_SIGNAL; sinfo->signal = (s8)sta->last_signal; } -- cgit v1.2.3-70-g09d2 From 512414b0bed0d376ac4d5ec1dd6f0b1a3551febc Mon Sep 17 00:00:00 2001 From: "Luis R. Rodriguez" Date: Wed, 25 Nov 2009 17:23:26 -0500 Subject: ath5k: enable EEPROM checksum check Without this we have no gaurantee of the integrity of the EEPROM and are likely to encounter a lot of bogus bug reports due to actual issues on the EEPROM. With the EEPROM checksum check in place we can easily rule those issues out. If you run patch during a revert *you* have a card with a busted EEPROM and only older kernel will support that concoction. This patch is a trade off between not accepitng bogus EEPROMs and avoiding bogus bug reports allowing developers to focus instead on real concrete issues. If stable keeps bogus bug reports because of a possibly busted EEPROM feel free to apply this there too. Tested on an AR5414 Cc: stable@kernel.org Cc: jirislaby@gmail.com Cc: akpm@linux-foundation.org Cc: rjw@sisk.pl Cc: me@bobcopeland.com Cc: david.quan@atheros.com Signed-off-by: Luis R. Rodriguez Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath5k/eeprom.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/wireless/ath/ath5k/eeprom.c b/drivers/net/wireless/ath/ath5k/eeprom.c index 644962adda9..79188526260 100644 --- a/drivers/net/wireless/ath/ath5k/eeprom.c +++ b/drivers/net/wireless/ath/ath5k/eeprom.c @@ -97,6 +97,7 @@ ath5k_eeprom_init_header(struct ath5k_hw *ah) struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom; int ret; u16 val; + u32 cksum, offset; /* * Read values from EEPROM and store them in the capability structure @@ -111,7 +112,6 @@ ath5k_eeprom_init_header(struct ath5k_hw *ah) if (ah->ah_ee_version < AR5K_EEPROM_VERSION_3_0) return 0; -#ifdef notyet /* * Validate the checksum of the EEPROM date. There are some * devices with invalid EEPROMs. @@ -124,7 +124,6 @@ ath5k_eeprom_init_header(struct ath5k_hw *ah) ATH5K_ERR(ah->ah_sc, "Invalid EEPROM checksum 0x%04x\n", cksum); return -EIO; } -#endif AR5K_EEPROM_READ_HDR(AR5K_EEPROM_ANT_GAIN(ah->ah_ee_version), ee_ant_gain); -- cgit v1.2.3-70-g09d2 From 49d7590ce494a971311ca55d8aaa6ea9a87b108f Mon Sep 17 00:00:00 2001 From: Herton Ronaldo Krzesinski Date: Wed, 9 Dec 2009 14:56:13 -0200 Subject: rtl8187: add radio led and fix warnings on suspend Michael Buesch reports that his rtl8187 gives warnings on suspend ("queueing ieee80211 work while going to suspend" warnings), as rtl8187 can call ieee80211_queue_delayed_work after mac80211 is suspended. This change enhances rtl8187 led code so we can avoid queuing work after mac80211 is suspended: now we register a radio led and make additional checks to ensure led is off/on properly as mac80211 wants. Signed-off-by: Herton Ronaldo Krzesinski Tested-by: Larry Finger Cc: Stable Signed-off-by: John W. Linville --- drivers/net/wireless/rtl818x/rtl8187.h | 1 + drivers/net/wireless/rtl818x/rtl8187_leds.c | 68 ++++++++++++++++++++--------- drivers/net/wireless/rtl818x/rtl8187_leds.h | 2 + 3 files changed, 50 insertions(+), 21 deletions(-) diff --git a/drivers/net/wireless/rtl818x/rtl8187.h b/drivers/net/wireless/rtl818x/rtl8187.h index b1a24de0b7b..6af0f3f71f3 100644 --- a/drivers/net/wireless/rtl818x/rtl8187.h +++ b/drivers/net/wireless/rtl818x/rtl8187.h @@ -108,6 +108,7 @@ struct rtl8187_priv { struct delayed_work work; struct ieee80211_hw *dev; #ifdef CONFIG_RTL8187_LEDS + struct rtl8187_led led_radio; struct rtl8187_led led_tx; struct rtl8187_led led_rx; struct delayed_work led_on; diff --git a/drivers/net/wireless/rtl818x/rtl8187_leds.c b/drivers/net/wireless/rtl818x/rtl8187_leds.c index cf8a4a40fdf..ded44c045eb 100644 --- a/drivers/net/wireless/rtl818x/rtl8187_leds.c +++ b/drivers/net/wireless/rtl818x/rtl8187_leds.c @@ -105,19 +105,36 @@ static void rtl8187_led_brightness_set(struct led_classdev *led_dev, struct rtl8187_led *led = container_of(led_dev, struct rtl8187_led, led_dev); struct ieee80211_hw *hw = led->dev; - struct rtl8187_priv *priv = hw->priv; + struct rtl8187_priv *priv; + static bool radio_on; - if (brightness == LED_OFF) { - ieee80211_queue_delayed_work(hw, &priv->led_off, 0); - /* The LED is off for 1/20 sec so that it just blinks. */ - ieee80211_queue_delayed_work(hw, &priv->led_on, HZ / 20); - } else - ieee80211_queue_delayed_work(hw, &priv->led_on, 0); + if (!hw) + return; + priv = hw->priv; + if (led->is_radio) { + if (brightness == LED_FULL) { + ieee80211_queue_delayed_work(hw, &priv->led_on, 0); + radio_on = true; + } else if (radio_on) { + radio_on = false; + cancel_delayed_work_sync(&priv->led_on); + ieee80211_queue_delayed_work(hw, &priv->led_off, 0); + } + } else if (radio_on) { + if (brightness == LED_OFF) { + ieee80211_queue_delayed_work(hw, &priv->led_off, 0); + /* The LED is off for 1/20 sec - it just blinks. */ + ieee80211_queue_delayed_work(hw, &priv->led_on, + HZ / 20); + } else + ieee80211_queue_delayed_work(hw, &priv->led_on, 0); + } } static int rtl8187_register_led(struct ieee80211_hw *dev, struct rtl8187_led *led, const char *name, - const char *default_trigger, u8 ledpin) + const char *default_trigger, u8 ledpin, + bool is_radio) { int err; struct rtl8187_priv *priv = dev->priv; @@ -128,6 +145,7 @@ static int rtl8187_register_led(struct ieee80211_hw *dev, return -EINVAL; led->dev = dev; led->ledpin = ledpin; + led->is_radio = is_radio; strncpy(led->name, name, sizeof(led->name)); led->led_dev.name = led->name; @@ -145,7 +163,11 @@ static int rtl8187_register_led(struct ieee80211_hw *dev, static void rtl8187_unregister_led(struct rtl8187_led *led) { + struct ieee80211_hw *hw = led->dev; + struct rtl8187_priv *priv = hw->priv; + led_classdev_unregister(&led->led_dev); + flush_delayed_work(&priv->led_off); led->dev = NULL; } @@ -182,34 +204,38 @@ void rtl8187_leds_init(struct ieee80211_hw *dev, u16 custid) INIT_DELAYED_WORK(&priv->led_on, led_turn_on); INIT_DELAYED_WORK(&priv->led_off, led_turn_off); + snprintf(name, sizeof(name), + "rtl8187-%s::radio", wiphy_name(dev->wiphy)); + err = rtl8187_register_led(dev, &priv->led_radio, name, + ieee80211_get_radio_led_name(dev), ledpin, true); + if (err) + return; + snprintf(name, sizeof(name), "rtl8187-%s::tx", wiphy_name(dev->wiphy)); err = rtl8187_register_led(dev, &priv->led_tx, name, - ieee80211_get_tx_led_name(dev), ledpin); + ieee80211_get_tx_led_name(dev), ledpin, false); if (err) - goto error; + goto err_tx; + snprintf(name, sizeof(name), "rtl8187-%s::rx", wiphy_name(dev->wiphy)); err = rtl8187_register_led(dev, &priv->led_rx, name, - ieee80211_get_rx_led_name(dev), ledpin); - if (!err) { - ieee80211_queue_delayed_work(dev, &priv->led_on, 0); + ieee80211_get_rx_led_name(dev), ledpin, false); + if (!err) return; - } - /* registration of RX LED failed - unregister TX */ + + /* registration of RX LED failed - unregister */ rtl8187_unregister_led(&priv->led_tx); -error: - /* If registration of either failed, cancel delayed work */ - cancel_delayed_work_sync(&priv->led_off); - cancel_delayed_work_sync(&priv->led_on); +err_tx: + rtl8187_unregister_led(&priv->led_radio); } void rtl8187_leds_exit(struct ieee80211_hw *dev) { struct rtl8187_priv *priv = dev->priv; - /* turn the LED off before exiting */ - ieee80211_queue_delayed_work(dev, &priv->led_off, 0); + rtl8187_unregister_led(&priv->led_radio); rtl8187_unregister_led(&priv->led_rx); rtl8187_unregister_led(&priv->led_tx); cancel_delayed_work_sync(&priv->led_off); diff --git a/drivers/net/wireless/rtl818x/rtl8187_leds.h b/drivers/net/wireless/rtl818x/rtl8187_leds.h index a0332027aea..efe8041bdda 100644 --- a/drivers/net/wireless/rtl818x/rtl8187_leds.h +++ b/drivers/net/wireless/rtl818x/rtl8187_leds.h @@ -47,6 +47,8 @@ struct rtl8187_led { u8 ledpin; /* The unique name string for this LED device. */ char name[RTL8187_LED_MAX_NAME_LEN + 1]; + /* If the LED is radio or tx/rx */ + bool is_radio; }; void rtl8187_leds_init(struct ieee80211_hw *dev, u16 code); -- cgit v1.2.3-70-g09d2 From 214ac9a4ead6cb254451c09d9c8234a76693feb1 Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Wed, 9 Dec 2009 13:25:56 -0600 Subject: b43: Remove reset after fatal DMA error As shown in Kernel Bugzilla #14761, doing a controller restart after a fatal DMA error does not accomplish anything other than consume the CPU on an affected system. Accordingly, substitute a meaningful message for the restart. Signed-off-by: Larry Finger Cc: Stable [2.6.32] Signed-off-by: John W. Linville --- drivers/net/wireless/b43/main.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index 077480c4916..19b4eae47b5 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -1784,7 +1784,10 @@ static void b43_do_interrupt_thread(struct b43_wldev *dev) dma_reason[0], dma_reason[1], dma_reason[2], dma_reason[3], dma_reason[4], dma_reason[5]); - b43_controller_restart(dev, "DMA error"); + b43err(dev->wl, "This device does not support DMA " + "on your system. Please use PIO instead.\n"); + b43err(dev->wl, "CONFIG_B43_FORCE_PIO must be set in " + "your kernel configuration.\n"); return; } if (merged_dma_reason & B43_DMAIRQ_NONFATALMASK) { -- cgit v1.2.3-70-g09d2 From 0c3cee72a403e3b4992a5478c9c33d668c246c22 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Wed, 9 Dec 2009 20:25:59 +0100 Subject: net/mac80211: Correct size given to memset Memset should be given the size of the structure, not the size of the pointer. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // @@ type T; T *x; expression E; @@ memset(x, E, sizeof( + * x)) // Signed-off-by: Julia Lawall Signed-off-by: John W. Linville --- net/mac80211/mesh.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c index c0fe46493f7..6a433142959 100644 --- a/net/mac80211/mesh.c +++ b/net/mac80211/mesh.c @@ -427,7 +427,7 @@ int ieee80211_new_mesh_header(struct ieee80211s_hdr *meshhdr, char *addr5, char *addr6) { int aelen = 0; - memset(meshhdr, 0, sizeof(meshhdr)); + memset(meshhdr, 0, sizeof(*meshhdr)); meshhdr->ttl = sdata->u.mesh.mshcfg.dot11MeshTTL; put_unaligned(cpu_to_le32(sdata->u.mesh.mesh_seqnum), &meshhdr->seqnum); sdata->u.mesh.mesh_seqnum++; -- cgit v1.2.3-70-g09d2 From 5d618cb81aeea19879975cd1f9a1e707694dfd7c Mon Sep 17 00:00:00 2001 From: Javier Cardona Date: Wed, 9 Dec 2009 18:43:00 -0800 Subject: mac80211: Fixed bug in mesh portal paths Paths to mesh portals were being timed out immediately after each use in intermediate forwarding nodes. mppath->exp_time is set to the expiration time so assigning it to jiffies was marking the path as expired. Signed-off-by: Javier Cardona Signed-off-by: Andrey Yurovsky Cc: stable@kernel.org Signed-off-by: John W. Linville --- net/mac80211/rx.c | 1 - 1 file changed, 1 deletion(-) diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index f237df40837..9f2807aeaf5 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -1712,7 +1712,6 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx) mpp_path_add(proxied_addr, mpp_addr, sdata); } else { spin_lock_bh(&mppath->state_lock); - mppath->exp_time = jiffies; if (compare_ether_addr(mppath->mpp, mpp_addr) != 0) memcpy(mppath->mpp, mpp_addr, ETH_ALEN); spin_unlock_bh(&mppath->state_lock); -- cgit v1.2.3-70-g09d2 From 7b324d28a94dac5a451e8cba66e8d324601e5b9a Mon Sep 17 00:00:00 2001 From: Javier Cardona Date: Wed, 9 Dec 2009 18:43:01 -0800 Subject: mac80211: Revert 'Use correct sign for mesh active path refresh' The patch ("mac80211: Use correct sign for mesh active path refresh.") was actually a bug. Reverted it and improved the explanation of how mesh path refresh works. Signed-off-by: Javier Cardona Signed-off-by: Andrey Yurovsky Cc: stable@kernel.org Signed-off-by: John W. Linville --- net/mac80211/mesh.h | 5 +++-- net/mac80211/mesh_hwmp.c | 2 +- 2 files changed, 4 insertions(+), 3 deletions(-) diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h index 31e10254186..85562c59d7d 100644 --- a/net/mac80211/mesh.h +++ b/net/mac80211/mesh.h @@ -188,8 +188,9 @@ struct mesh_rmc { */ #define MESH_PREQ_MIN_INT 10 #define MESH_DIAM_TRAVERSAL_TIME 50 -/* Paths will be refreshed if they are closer than PATH_REFRESH_TIME to their - * expiration +/* A path will be refreshed if it is used PATH_REFRESH_TIME milliseconds before + * timing out. This way it will remain ACTIVE and no data frames will be + * unnecesarily held in the pending queue. */ #define MESH_PATH_REFRESH_TIME 1000 #define MESH_MIN_DISCOVERY_TIMEOUT (2 * MESH_DIAM_TRAVERSAL_TIME) diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c index 833b2f3670c..d28acb6b1f8 100644 --- a/net/mac80211/mesh_hwmp.c +++ b/net/mac80211/mesh_hwmp.c @@ -937,7 +937,7 @@ int mesh_nexthop_lookup(struct sk_buff *skb, if (mpath->flags & MESH_PATH_ACTIVE) { if (time_after(jiffies, - mpath->exp_time + + mpath->exp_time - msecs_to_jiffies(sdata->u.mesh.mshcfg.path_refresh_time)) && !memcmp(sdata->dev->dev_addr, hdr->addr4, ETH_ALEN) && !(mpath->flags & MESH_PATH_RESOLVING) && -- cgit v1.2.3-70-g09d2 From 65182b9fb004220f250d4269c864cf0f1f372e85 Mon Sep 17 00:00:00 2001 From: "John W. Linville" Date: Wed, 9 Dec 2009 15:11:22 -0500 Subject: wireless: update old static regulatory domain rules Update "US" and "JP" for current rules, and replace "EU" rules with the world roaming domain (since it was only a pseudo-domain anyway). Signed-off-by: John W. Linville --- net/wireless/reg.c | 75 ++++++++++++++++++------------------------------------ 1 file changed, 25 insertions(+), 50 deletions(-) diff --git a/net/wireless/reg.c b/net/wireless/reg.c index c01470e7de1..baa898add28 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -141,62 +141,35 @@ static const struct ieee80211_regdomain us_regdom = { .reg_rules = { /* IEEE 802.11b/g, channels 1..11 */ REG_RULE(2412-10, 2462+10, 40, 6, 27, 0), - /* IEEE 802.11a, channel 36 */ - REG_RULE(5180-10, 5180+10, 40, 6, 23, 0), - /* IEEE 802.11a, channel 40 */ - REG_RULE(5200-10, 5200+10, 40, 6, 23, 0), - /* IEEE 802.11a, channel 44 */ - REG_RULE(5220-10, 5220+10, 40, 6, 23, 0), + /* IEEE 802.11a, channel 36..48 */ + REG_RULE(5180-10, 5240+10, 40, 6, 17, 0), /* IEEE 802.11a, channels 48..64 */ - REG_RULE(5240-10, 5320+10, 40, 6, 23, 0), + REG_RULE(5260-10, 5320+10, 40, 6, 20, NL80211_RRF_DFS), + /* IEEE 802.11a, channels 100..124 */ + REG_RULE(5500-10, 5590+10, 40, 6, 20, NL80211_RRF_DFS), + /* IEEE 802.11a, channels 132..144 */ + REG_RULE(5660-10, 5700+10, 40, 6, 20, NL80211_RRF_DFS), /* IEEE 802.11a, channels 149..165, outdoor */ REG_RULE(5745-10, 5825+10, 40, 6, 30, 0), } }; static const struct ieee80211_regdomain jp_regdom = { - .n_reg_rules = 3, + .n_reg_rules = 6, .alpha2 = "JP", .reg_rules = { - /* IEEE 802.11b/g, channels 1..14 */ - REG_RULE(2412-10, 2484+10, 40, 6, 20, 0), - /* IEEE 802.11a, channels 34..48 */ - REG_RULE(5170-10, 5240+10, 40, 6, 20, - NL80211_RRF_PASSIVE_SCAN), + /* IEEE 802.11b/g, channels 1..11 */ + REG_RULE(2412-10, 2462+10, 40, 6, 20, 0), + /* IEEE 802.11b/g, channels 12..13 */ + REG_RULE(2467-10, 2472+10, 20, 6, 20, 0), + /* IEEE 802.11b/g, channel 14 */ + REG_RULE(2484-10, 2484+10, 20, 6, 20, NL80211_RRF_NO_OFDM), + /* IEEE 802.11a, channels 36..48 */ + REG_RULE(5180-10, 5240+10, 40, 6, 20, 0), /* IEEE 802.11a, channels 52..64 */ - REG_RULE(5260-10, 5320+10, 40, 6, 20, - NL80211_RRF_NO_IBSS | - NL80211_RRF_DFS), - } -}; - -static const struct ieee80211_regdomain eu_regdom = { - .n_reg_rules = 6, - /* - * This alpha2 is bogus, we leave it here just for stupid - * backward compatibility - */ - .alpha2 = "EU", - .reg_rules = { - /* IEEE 802.11b/g, channels 1..13 */ - REG_RULE(2412-10, 2472+10, 40, 6, 20, 0), - /* IEEE 802.11a, channel 36 */ - REG_RULE(5180-10, 5180+10, 40, 6, 23, - NL80211_RRF_PASSIVE_SCAN), - /* IEEE 802.11a, channel 40 */ - REG_RULE(5200-10, 5200+10, 40, 6, 23, - NL80211_RRF_PASSIVE_SCAN), - /* IEEE 802.11a, channel 44 */ - REG_RULE(5220-10, 5220+10, 40, 6, 23, - NL80211_RRF_PASSIVE_SCAN), - /* IEEE 802.11a, channels 48..64 */ - REG_RULE(5240-10, 5320+10, 40, 6, 20, - NL80211_RRF_NO_IBSS | - NL80211_RRF_DFS), - /* IEEE 802.11a, channels 100..140 */ - REG_RULE(5500-10, 5700+10, 40, 6, 30, - NL80211_RRF_NO_IBSS | - NL80211_RRF_DFS), + REG_RULE(5260-10, 5320+10, 40, 6, 20, NL80211_RRF_DFS), + /* IEEE 802.11a, channels 100..144 */ + REG_RULE(5500-10, 5700+10, 40, 6, 23, NL80211_RRF_DFS), } }; @@ -206,15 +179,17 @@ static const struct ieee80211_regdomain *static_regdom(char *alpha2) return &us_regdom; if (alpha2[0] == 'J' && alpha2[1] == 'P') return &jp_regdom; + /* Use world roaming rules for "EU", since it was a pseudo + domain anyway... */ if (alpha2[0] == 'E' && alpha2[1] == 'U') - return &eu_regdom; - /* Default, as per the old rules */ - return &us_regdom; + return &world_regdom; + /* Default, world roaming rules */ + return &world_regdom; } static bool is_old_static_regdom(const struct ieee80211_regdomain *rd) { - if (rd == &us_regdom || rd == &jp_regdom || rd == &eu_regdom) + if (rd == &us_regdom || rd == &jp_regdom || rd == &world_regdom) return true; return false; } -- cgit v1.2.3-70-g09d2 From b2ec153a637409bd87952d44409905b7d98418b8 Mon Sep 17 00:00:00 2001 From: Gertjan van Wingerde Date: Mon, 14 Dec 2009 14:09:49 -0500 Subject: rt2x00: Fix rt2800usb detection in rt2800lib. rt2800lib incorrectly detected whether RT2800USB was enabled because it didn't account for a modularized RT2800USB driver. Signed-off-by: Gertjan van Wingerde Acked-by: Ivo van Doorn Signed-off-by: John W. Linville --- drivers/net/wireless/rt2x00/rt2800lib.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c index eb1e1d00bec..6e13650cb5d 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -37,7 +37,7 @@ #include #include "rt2x00.h" -#ifdef CONFIG_RT2800USB +#if defined(CONFIG_RT2800USB) || defined(CONFIG_RT2800USB_MODULE) #include "rt2x00usb.h" #endif #include "rt2800lib.h" @@ -1121,7 +1121,7 @@ int rt2800_init_registers(struct rt2x00_dev *rt2x00dev) if (rt2x00_intf_is_usb(rt2x00dev)) { rt2800_register_write(rt2x00dev, USB_DMA_CFG, 0x00000000); -#ifdef CONFIG_RT2800USB +#if defined(CONFIG_RT2800USB) || defined(CONFIG_RT2800USB_MODULE) rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE, 0, USB_MODE_RESET, REGISTER_TIMEOUT); #endif -- cgit v1.2.3-70-g09d2 From d24deb2580823ab0b8425790c6f5d18e2ff749d8 Mon Sep 17 00:00:00 2001 From: Gertjan van Wingerde Date: Fri, 4 Dec 2009 23:46:54 +0100 Subject: mac80211: Add define for TX headroom reserved by mac80211 itself. Add a definition of the amount of TX headroom reserved by mac80211 itself for its own purposes. Also add BUILD_BUG_ON to validate the value. This define can then be used by drivers to request additional TX headroom in the most efficient manner. Signed-off-by: Gertjan van Wingerde Acked-by: Johannes Berg Signed-off-by: John W. Linville --- include/net/mac80211.h | 6 ++++++ net/mac80211/main.c | 2 ++ 2 files changed, 8 insertions(+) diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 2aff4906b2a..538d6b76188 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -1737,6 +1737,12 @@ static inline void ieee80211_rx_ni(struct ieee80211_hw *hw, local_bh_enable(); } +/* + * The TX headroom reserved by mac80211 for its own tx_status functions. + * This is enough for the radiotap header. + */ +#define IEEE80211_TX_STATUS_HEADROOM 13 + /** * ieee80211_tx_status - transmit status callback * diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 8116d1a96a4..0d2d94881f1 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -515,6 +515,8 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) * and we need some headroom for passing the frame to monitor * interfaces, but never both at the same time. */ + BUILD_BUG_ON(IEEE80211_TX_STATUS_HEADROOM != + sizeof(struct ieee80211_tx_status_rtap_hdr)); local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom, sizeof(struct ieee80211_tx_status_rtap_hdr)); -- cgit v1.2.3-70-g09d2 From 64a76b504b04b5da16d1e7658a95dd126594e02f Mon Sep 17 00:00:00 2001 From: Zhu Yi Date: Thu, 10 Dec 2009 14:37:21 -0800 Subject: iwlwifi: allocated rx page accounting cleanup In iwlwifi, priv->alloc_rxb_page is used to keep track of the Rx pages allocated by the driver. This cleans up the page free routines by introducing __iwl_free_pages/iwl_free_pages so that the accounting is more accurate and less error prone. This also fixes two instances where the counter was not updated. Signed-off-by: Zhu Yi Signed-off-by: Reinette Chatre Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-3945.c | 3 +-- drivers/net/wireless/iwlwifi/iwl-dev.h | 11 +++++++++++ drivers/net/wireless/iwlwifi/iwl-hcmd.c | 2 +- drivers/net/wireless/iwlwifi/iwl-rx.c | 8 ++------ drivers/net/wireless/iwlwifi/iwl-scan.c | 3 +-- drivers/net/wireless/iwlwifi/iwl-sta.c | 8 ++------ drivers/net/wireless/iwlwifi/iwl3945-base.c | 10 +++------- 7 files changed, 21 insertions(+), 24 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c index 7da1dab933d..4609323d843 100644 --- a/drivers/net/wireless/iwlwifi/iwl-3945.c +++ b/drivers/net/wireless/iwlwifi/iwl-3945.c @@ -1835,8 +1835,7 @@ static int iwl3945_send_rxon_assoc(struct iwl_priv *priv) rc = -EIO; } - priv->alloc_rxb_page--; - free_pages(cmd.reply_page, priv->hw_params.rx_page_order); + iwl_free_pages(priv, cmd.reply_page); return rc; } diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h index 2673e9a4db9..e1032f2bdc7 100644 --- a/drivers/net/wireless/iwlwifi/iwl-dev.h +++ b/drivers/net/wireless/iwlwifi/iwl-dev.h @@ -1353,4 +1353,15 @@ static inline int is_channel_ibss(const struct iwl_channel_info *ch) return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0; } +static inline void __iwl_free_pages(struct iwl_priv *priv, struct page *page) +{ + __free_pages(page, priv->hw_params.rx_page_order); + priv->alloc_rxb_page--; +} + +static inline void iwl_free_pages(struct iwl_priv *priv, unsigned long page) +{ + free_pages(page, priv->hw_params.rx_page_order); + priv->alloc_rxb_page--; +} #endif /* __iwl_dev_h__ */ diff --git a/drivers/net/wireless/iwlwifi/iwl-hcmd.c b/drivers/net/wireless/iwlwifi/iwl-hcmd.c index a2316594820..30e9ea6d54e 100644 --- a/drivers/net/wireless/iwlwifi/iwl-hcmd.c +++ b/drivers/net/wireless/iwlwifi/iwl-hcmd.c @@ -234,7 +234,7 @@ cancel: } fail: if (cmd->reply_page) { - free_pages(cmd->reply_page, priv->hw_params.rx_page_order); + iwl_free_pages(priv, cmd->reply_page); cmd->reply_page = 0; } out: diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c index 6090bc15a6d..f5c87e72660 100644 --- a/drivers/net/wireless/iwlwifi/iwl-rx.c +++ b/drivers/net/wireless/iwlwifi/iwl-rx.c @@ -345,10 +345,8 @@ void iwl_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq) pci_unmap_page(priv->pci_dev, rxq->pool[i].page_dma, PAGE_SIZE << priv->hw_params.rx_page_order, PCI_DMA_FROMDEVICE); - __free_pages(rxq->pool[i].page, - priv->hw_params.rx_page_order); + __iwl_free_pages(priv, rxq->pool[i].page); rxq->pool[i].page = NULL; - priv->alloc_rxb_page--; } } @@ -416,9 +414,7 @@ void iwl_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq) pci_unmap_page(priv->pci_dev, rxq->pool[i].page_dma, PAGE_SIZE << priv->hw_params.rx_page_order, PCI_DMA_FROMDEVICE); - priv->alloc_rxb_page--; - __free_pages(rxq->pool[i].page, - priv->hw_params.rx_page_order); + __iwl_free_pages(priv, rxq->pool[i].page); rxq->pool[i].page = NULL; } list_add_tail(&rxq->pool[i].list, &rxq->rx_used); diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c index a2b2b8315ff..fa1c89ba645 100644 --- a/drivers/net/wireless/iwlwifi/iwl-scan.c +++ b/drivers/net/wireless/iwlwifi/iwl-scan.c @@ -144,8 +144,7 @@ static int iwl_send_scan_abort(struct iwl_priv *priv) clear_bit(STATUS_SCAN_HW, &priv->status); } - priv->alloc_rxb_page--; - free_pages(cmd.reply_page, priv->hw_params.rx_page_order); + iwl_free_pages(priv, cmd.reply_page); return ret; } diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c index cd6a6901216..cde09a890b7 100644 --- a/drivers/net/wireless/iwlwifi/iwl-sta.c +++ b/drivers/net/wireless/iwlwifi/iwl-sta.c @@ -164,9 +164,7 @@ int iwl_send_add_sta(struct iwl_priv *priv, break; } } - - priv->alloc_rxb_page--; - free_pages(cmd.reply_page, priv->hw_params.rx_page_order); + iwl_free_pages(priv, cmd.reply_page); return ret; } @@ -391,9 +389,7 @@ static int iwl_send_remove_station(struct iwl_priv *priv, const u8 *addr, break; } } - - priv->alloc_rxb_page--; - free_pages(cmd.reply_page, priv->hw_params.rx_page_order); + iwl_free_pages(priv, cmd.reply_page); return ret; } diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c index 2a28a1f8b1f..994db4a2e1c 100644 --- a/drivers/net/wireless/iwlwifi/iwl3945-base.c +++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c @@ -812,7 +812,7 @@ static int iwl3945_get_measurement(struct iwl_priv *priv, break; } - free_pages(cmd.reply_page, priv->hw_params.rx_page_order); + iwl_free_pages(priv, cmd.reply_page); return rc; } @@ -1198,9 +1198,7 @@ void iwl3945_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq) pci_unmap_page(priv->pci_dev, rxq->pool[i].page_dma, PAGE_SIZE << priv->hw_params.rx_page_order, PCI_DMA_FROMDEVICE); - priv->alloc_rxb_page--; - __free_pages(rxq->pool[i].page, - priv->hw_params.rx_page_order); + __iwl_free_pages(priv, rxq->pool[i].page); rxq->pool[i].page = NULL; } list_add_tail(&rxq->pool[i].list, &rxq->rx_used); @@ -1247,10 +1245,8 @@ static void iwl3945_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rx pci_unmap_page(priv->pci_dev, rxq->pool[i].page_dma, PAGE_SIZE << priv->hw_params.rx_page_order, PCI_DMA_FROMDEVICE); - __free_pages(rxq->pool[i].page, - priv->hw_params.rx_page_order); + __iwl_free_pages(priv, rxq->pool[i].page); rxq->pool[i].page = NULL; - priv->alloc_rxb_page--; } } -- cgit v1.2.3-70-g09d2 From f8701fe3aec24fcfb0dfa19aab47904611f96daf Mon Sep 17 00:00:00 2001 From: Reinette Chatre Date: Thu, 10 Dec 2009 14:37:22 -0800 Subject: iwlwifi: power up all devices for EEPROM read Recent commits "iwlwifi: remove power-wasting calls to apm_ops.init()" and "iwlagn: power up device before initializing EEPROM" had the goal of reducing device power consumption from the time the module is loaded until the interface is brought up and the device's power saving mechanisms kick in. The idea is that once the module is loaded there is no need for the device to consume power until the interface is brought up. With the current solution the device is only powered up during EEPROM read, and then so also only if the EEPROM type is OTP. We have found that on certain platforms even non-OTP devices require power to be up during EEPROM read. On these platforms the driver never loads and the system log contains the following: iwlagn 0000:03:00.0: MAC is in deep sleep!. CSR_GP_CNTRL = 0x080403D8 We thus now power up all devices during EEPROM read. Signed-off-by: Reinette Chatre Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-csr.h | 8 +++----- drivers/net/wireless/iwlwifi/iwl-eeprom.c | 14 +++----------- 2 files changed, 6 insertions(+), 16 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-csr.h b/drivers/net/wireless/iwlwifi/iwl-csr.h index a7bfae01f19..1ec8cb4d5ea 100644 --- a/drivers/net/wireless/iwlwifi/iwl-csr.h +++ b/drivers/net/wireless/iwlwifi/iwl-csr.h @@ -77,8 +77,7 @@ * The MAC (uCode processor, etc.) does not need to be powered up for accessing * the CSR registers. * - * NOTE: Newer devices using one-time-programmable (OTP) memory - * require device to be awake in order to read this memory + * NOTE: Device does need to be awake in order to read this memory * via CSR_EEPROM and CSR_OTP registers */ #define CSR_BASE (0x000) @@ -111,9 +110,8 @@ /* * EEPROM and OTP (one-time-programmable) memory reads * - * NOTE: For (newer) devices using OTP, device must be awake, initialized via - * apm_ops.init() in order to read. Older devices (3945/4965/5000) - * use EEPROM and do not require this. + * NOTE: Device must be awake, initialized via apm_ops.init(), + * in order to read. */ #define CSR_EEPROM_REG (CSR_BASE+0x02c) #define CSR_EEPROM_GP (CSR_BASE+0x030) diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom.c b/drivers/net/wireless/iwlwifi/iwl-eeprom.c index 3946e5c03f8..72f0d77955c 100644 --- a/drivers/net/wireless/iwlwifi/iwl-eeprom.c +++ b/drivers/net/wireless/iwlwifi/iwl-eeprom.c @@ -518,10 +518,7 @@ int iwl_eeprom_init(struct iwl_priv *priv) } e = (u16 *)priv->eeprom; - if (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP) { - /* OTP reads require powered-up chip */ - priv->cfg->ops->lib->apm_ops.init(priv); - } + priv->cfg->ops->lib->apm_ops.init(priv); ret = priv->cfg->ops->lib->eeprom_ops.verify_signature(priv); if (ret < 0) { @@ -570,13 +567,6 @@ int iwl_eeprom_init(struct iwl_priv *priv) e[cache_addr / 2] = eeprom_data; cache_addr += sizeof(u16); } - - /* - * Now that OTP reads are complete, reset chip to save - * power until we load uCode during "up". - */ - priv->cfg->ops->lib->apm_ops.stop(priv); - } else { /* eeprom is an array of 16bit values */ for (addr = 0; addr < sz; addr += sizeof(u16)) { @@ -603,6 +593,8 @@ done: err: if (ret) iwl_eeprom_free(priv); + /* Reset chip to save power until we load uCode during "up". */ + priv->cfg->ops->lib->apm_ops.stop(priv); alloc_err: return ret; } -- cgit v1.2.3-70-g09d2 From 521d9bce86331d8261213b807a9127f7e2ec046b Mon Sep 17 00:00:00 2001 From: Wey-Yi Guy Date: Thu, 10 Dec 2009 14:37:23 -0800 Subject: iwlwifi: fix syslog message for event log dump size When trigger event log dumping from debugfs, the entire event log should be dumped and the size should match the number of events being dump. Signed-off-by: Wey-Yi Guy Signed-off-by: Reinette Chatre Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-agn.c | 2 +- drivers/net/wireless/iwlwifi/iwl3945-base.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index b8377efb3ba..715db219f90 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -1842,7 +1842,7 @@ void iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log) } #ifdef CONFIG_IWLWIFI_DEBUG - if (!(iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS)) + if (!(iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) && !full_log) size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES) ? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size; #else diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c index 994db4a2e1c..4c0e4758689 100644 --- a/drivers/net/wireless/iwlwifi/iwl3945-base.c +++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c @@ -1684,7 +1684,7 @@ void iwl3945_dump_nic_event_log(struct iwl_priv *priv, bool full_log) } #ifdef CONFIG_IWLWIFI_DEBUG - if (!(iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS)) + if (!(iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) && !full_log) size = (size > DEFAULT_IWL3945_DUMP_EVENT_LOG_ENTRIES) ? DEFAULT_IWL3945_DUMP_EVENT_LOG_ENTRIES : size; #else -- cgit v1.2.3-70-g09d2 From 4d91f9f3730d6d82a3ba67cae215a1823ba6a191 Mon Sep 17 00:00:00 2001 From: Benoit Papillault Date: Sat, 12 Dec 2009 00:22:35 +0100 Subject: ath9k: Last fix for TX software padding. First, we copy/paste the padding stuff from ath9k_tx to ath_tx_cabq since it needs to same kind of padding, but for internally generated beacons. Next, software padding done on TX needs to be removed before calling ieee80211_tx_status. The code was already there in ath_tx_complete but it was wrong. Fix it by using ath9k_cmn_padpos. This later code has been tested by sending packets to a monitor interface and reading packets from the same interface. Signed-off-by: Benoit PAPILLAULT Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/xmit.c | 23 ++++++++++++----------- 1 file changed, 12 insertions(+), 11 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index 2a11cc57cee..67706205699 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -1780,7 +1780,8 @@ void ath_tx_cabq(struct ieee80211_hw *hw, struct sk_buff *skb) struct ath_wiphy *aphy = hw->priv; struct ath_softc *sc = aphy->sc; struct ath_common *common = ath9k_hw_common(sc->sc_ah); - int hdrlen, padsize; + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; + int padpos, padsize; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); struct ath_tx_control txctl; @@ -1792,7 +1793,6 @@ void ath_tx_cabq(struct ieee80211_hw *hw, struct sk_buff *skb) * BSSes. */ if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) { - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT) sc->tx.seq_no += 0x10; hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG); @@ -1800,9 +1800,9 @@ void ath_tx_cabq(struct ieee80211_hw *hw, struct sk_buff *skb) } /* Add the padding after the header if this is not already done */ - hdrlen = ieee80211_get_hdrlen_from_skb(skb); - if (hdrlen & 3) { - padsize = hdrlen % 4; + padpos = ath9k_cmn_padpos(hdr->frame_control); + padsize = padpos & 3; + if (padsize && skb->len>padpos) { if (skb_headroom(skb) < padsize) { ath_print(common, ATH_DBG_XMIT, "TX CABQ padding failed\n"); @@ -1810,7 +1810,7 @@ void ath_tx_cabq(struct ieee80211_hw *hw, struct sk_buff *skb) return; } skb_push(skb, padsize); - memmove(skb->data, skb->data + padsize, hdrlen); + memmove(skb->data, skb->data + padsize, padpos); } txctl.txq = sc->beacon.cabq; @@ -1838,7 +1838,8 @@ static void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb, struct ieee80211_hw *hw = sc->hw; struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); struct ath_common *common = ath9k_hw_common(sc->sc_ah); - int hdrlen, padsize; + struct ieee80211_hdr * hdr = (struct ieee80211_hdr *)skb->data; + int padpos, padsize; ath_print(common, ATH_DBG_XMIT, "TX complete: skb: %p\n", skb); @@ -1853,14 +1854,14 @@ static void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb, tx_info->flags |= IEEE80211_TX_STAT_ACK; } - hdrlen = ieee80211_get_hdrlen_from_skb(skb); - padsize = hdrlen & 3; - if (padsize && hdrlen >= 24) { + padpos = ath9k_cmn_padpos(hdr->frame_control); + padsize = padpos & 3; + if (padsize && skb->len>padpos+padsize) { /* * Remove MAC header padding before giving the frame back to * mac80211. */ - memmove(skb->data + padsize, skb->data, hdrlen); + memmove(skb->data + padsize, skb->data, padpos); skb_pull(skb, padsize); } -- cgit v1.2.3-70-g09d2 From 855da5e07ef4dba5f23d8f6f31004116ba16c52a Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sun, 13 Dec 2009 17:07:45 +0100 Subject: drivers/net/wireless: Correct code taking the size of a pointer sizeof(iv16) and sizeof(iv32) are the sizes of pointers. Change them to the size of the copied data. Furthermore, iveiv_entry is a local structure that has just been initialized and is not visible outside this function. Thus, there would seem to be no point to copy data into it. The order of the arguments is thus changed to copy the data into the parameters, which are provided as pointers, suggesting in this case that they should be used to return values. A simplified version of the semantic patch that finds the first problem is as follows: (http://coccinelle.lip6.fr/) // @@ expression *x; expression f; type T; @@ *f(...,(T)x,...) // Signed-off-by: Julia Lawall Acked-by: Gertjan van Wingerde Acked-by: Ivo van Doorn Signed-off-by: John W. Linville --- drivers/net/wireless/rt2x00/rt2800lib.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c index 6e13650cb5d..a199f85e155 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -2140,8 +2140,8 @@ static void rt2800_get_tkip_seq(struct ieee80211_hw *hw, u8 hw_key_idx, rt2800_register_multiread(rt2x00dev, offset, &iveiv_entry, sizeof(iveiv_entry)); - memcpy(&iveiv_entry.iv[0], iv16, sizeof(iv16)); - memcpy(&iveiv_entry.iv[4], iv32, sizeof(iv32)); + memcpy(iv16, &iveiv_entry.iv[0], sizeof(*iv16)); + memcpy(iv32, &iveiv_entry.iv[4], sizeof(*iv32)); } static int rt2800_set_rts_threshold(struct ieee80211_hw *hw, u32 value) -- cgit v1.2.3-70-g09d2 From 93b6bd26b74efe46b4579592560f9f1cb7b61994 Mon Sep 17 00:00:00 2001 From: Gertjan van Wingerde Date: Mon, 14 Dec 2009 20:33:55 +0100 Subject: rt2x00: Disable powersaving for rt61pci and rt2800pci. We've had many reports of rt61pci failures with powersaving enabled. Therefore, as a stop-gap measure, disable powersaving of the rt61pci until we have found a proper solution. Also disable powersaving on rt2800pci as it most probably will show the same problem. Cc: stable@kernel.org Signed-off-by: Gertjan van Wingerde Acked-by: Ivo van Doorn Signed-off-by: John W. Linville --- drivers/net/wireless/rt2x00/rt2800lib.c | 6 ++++++ drivers/net/wireless/rt2x00/rt61pci.c | 5 +++++ 2 files changed, 11 insertions(+) diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c index a199f85e155..6bf6c0f12f3 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -2021,6 +2021,12 @@ int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev) unsigned int i; u16 eeprom; + /* + * Disable powersaving as default on PCI devices. + */ + if (rt2x00_intf_is_pci(rt2x00dev)) + rt2x00dev->hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; + /* * Initialize all hw fields. */ diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c index 687e17dc2e9..0ca589306d7 100644 --- a/drivers/net/wireless/rt2x00/rt61pci.c +++ b/drivers/net/wireless/rt2x00/rt61pci.c @@ -2538,6 +2538,11 @@ static int rt61pci_probe_hw_mode(struct rt2x00_dev *rt2x00dev) char *tx_power; unsigned int i; + /* + * Disable powersaving as default. + */ + rt2x00dev->hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; + /* * Initialize all hw fields. */ -- cgit v1.2.3-70-g09d2 From af6b8ee38833b39f70946f767740565ceb126961 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Mon, 14 Dec 2009 14:12:08 -0800 Subject: iwlwifi: fix EEPROM/OTP reading endian annotations and a bug The construct "le16_to_cpu((__force __le16)(r >> 16))" has always bothered me when looking through the iwlwifi code, it shouldn't be necessary to __force anything, and before this code, "r" was obtained with an ioread32, which swaps each of the two u16 values in it properly when swapping the entire u32 value. I've had arguments about this code with people before, but always conceded they were right because removing it only made things not work at all on big endian platforms. However, analysing a failure of the OTP reading code, I now finally figured out what is going on, and why my intuition about that code being wrong was right all along. It turns out that the 'priv->eeprom' u8 array really wants to have the data in it in little endian. So the force code above and all really converts *to* little endian, not from it. Cf., for instance, the function iwl_eeprom_query16() -- it reads two u8 values and combines them into a u16, in a little-endian way. And considering it more, it makes sense to have the eeprom array as on the device, after all not all values really are 16-bit values, the MAC address for instance is not. Now, what this really means is that all the annotations are completely wrong. The eeprom reading code should fill the priv->eeprom array as a __le16 array, with __le16 values. This also means that iwl_read_otp_word() should really have a __le16 pointer as the data argument, since it should be filling that in a format suitable for priv->eeprom. Propagating these changes throughout, iwl_find_otp_image() is found to be, now obviously visible, defective -- it uses the data returned by iwl_read_otp_word() directly as if it was CPU endianness. Fixing that, which is this hunk of the patch: - next_link_addr = link_value * sizeof(u16); + next_link_addr = le16_to_cpu(link_value) * sizeof(u16); is the only real change of this patch. Everything else is just fixing the sparse annotations. Also, the bug only shows up on big endian platforms with a 1000 series card. 5000 and previous series do not use OTP, and 6000 series has shadow RAM support which means we don't ever use the defective code on any cards but 1000. Signed-off-by: Johannes Berg Cc: stable@kernel.org Signed-off-by: Reinette Chatre Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-dev.h | 2 +- drivers/net/wireless/iwlwifi/iwl-eeprom.c | 20 +++++++++++--------- 2 files changed, 12 insertions(+), 10 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h index e1032f2bdc7..165d1f6e2dd 100644 --- a/drivers/net/wireless/iwlwifi/iwl-dev.h +++ b/drivers/net/wireless/iwlwifi/iwl-dev.h @@ -1168,7 +1168,7 @@ struct iwl_priv { u32 last_beacon_time; u64 last_tsf; - /* eeprom */ + /* eeprom -- this is in the card's little endian byte order */ u8 *eeprom; int nvm_device_type; struct iwl_eeprom_calib_info *calib_info; diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom.c b/drivers/net/wireless/iwlwifi/iwl-eeprom.c index 72f0d77955c..08ad6e41a1c 100644 --- a/drivers/net/wireless/iwlwifi/iwl-eeprom.c +++ b/drivers/net/wireless/iwlwifi/iwl-eeprom.c @@ -370,7 +370,7 @@ static int iwl_init_otp_access(struct iwl_priv *priv) return ret; } -static int iwl_read_otp_word(struct iwl_priv *priv, u16 addr, u16 *eeprom_data) +static int iwl_read_otp_word(struct iwl_priv *priv, u16 addr, __le16 *eeprom_data) { int ret = 0; u32 r; @@ -404,7 +404,7 @@ static int iwl_read_otp_word(struct iwl_priv *priv, u16 addr, u16 *eeprom_data) CSR_OTP_GP_REG_ECC_CORR_STATUS_MSK); IWL_ERR(priv, "Correctable OTP ECC error, continue read\n"); } - *eeprom_data = le16_to_cpu((__force __le16)(r >> 16)); + *eeprom_data = cpu_to_le16(r >> 16); return 0; } @@ -413,7 +413,8 @@ static int iwl_read_otp_word(struct iwl_priv *priv, u16 addr, u16 *eeprom_data) */ static bool iwl_is_otp_empty(struct iwl_priv *priv) { - u16 next_link_addr = 0, link_value; + u16 next_link_addr = 0; + __le16 link_value; bool is_empty = false; /* locate the beginning of OTP link list */ @@ -443,7 +444,8 @@ static bool iwl_is_otp_empty(struct iwl_priv *priv) static int iwl_find_otp_image(struct iwl_priv *priv, u16 *validblockaddr) { - u16 next_link_addr = 0, link_value = 0, valid_addr; + u16 next_link_addr = 0, valid_addr; + __le16 link_value = 0; int usedblocks = 0; /* set addressing mode to absolute to traverse the link list */ @@ -463,7 +465,7 @@ static int iwl_find_otp_image(struct iwl_priv *priv, * check for more block on the link list */ valid_addr = next_link_addr; - next_link_addr = link_value * sizeof(u16); + next_link_addr = le16_to_cpu(link_value) * sizeof(u16); IWL_DEBUG_INFO(priv, "OTP blocks %d addr 0x%x\n", usedblocks, next_link_addr); if (iwl_read_otp_word(priv, next_link_addr, &link_value)) @@ -497,7 +499,7 @@ static int iwl_find_otp_image(struct iwl_priv *priv, */ int iwl_eeprom_init(struct iwl_priv *priv) { - u16 *e; + __le16 *e; u32 gp = iwl_read32(priv, CSR_EEPROM_GP); int sz; int ret; @@ -516,7 +518,7 @@ int iwl_eeprom_init(struct iwl_priv *priv) ret = -ENOMEM; goto alloc_err; } - e = (u16 *)priv->eeprom; + e = (__le16 *)priv->eeprom; priv->cfg->ops->lib->apm_ops.init(priv); @@ -559,7 +561,7 @@ int iwl_eeprom_init(struct iwl_priv *priv) } for (addr = validblockaddr; addr < validblockaddr + sz; addr += sizeof(u16)) { - u16 eeprom_data; + __le16 eeprom_data; ret = iwl_read_otp_word(priv, addr, &eeprom_data); if (ret) @@ -584,7 +586,7 @@ int iwl_eeprom_init(struct iwl_priv *priv) goto done; } r = _iwl_read_direct32(priv, CSR_EEPROM_REG); - e[addr / 2] = le16_to_cpu((__force __le16)(r >> 16)); + e[addr / 2] = cpu_to_le16(r >> 16); } } ret = 0; -- cgit v1.2.3-70-g09d2 From b7bb1756cb6a610cdbac8cfdad9e79bb5670b63b Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Mon, 14 Dec 2009 14:12:09 -0800 Subject: iwlwifi: fix more eeprom endian bugs I've also for a long time had a problem with the temperature calculation code, which I had fixed by byte-swapping the values, and now it turns out that was the correct fix after all. Also, any use of iwl_eeprom_query_addr() that is for more than a u8 must be cast to little endian, and some structs as well. Fix all this. Again, no real impact on platforms that already are little endian. Signed-off-by: Johannes Berg Cc: stable@kernel.org Signed-off-by: Reinette Chatre Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-4965.c | 2 +- drivers/net/wireless/iwlwifi/iwl-5000-hw.h | 14 +++++++++----- drivers/net/wireless/iwlwifi/iwl-5000.c | 7 ++++--- drivers/net/wireless/iwlwifi/iwl-eeprom.h | 4 ++-- 4 files changed, 16 insertions(+), 11 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c index 386513b601f..484c5fdf7c2 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965.c +++ b/drivers/net/wireless/iwlwifi/iwl-4965.c @@ -1204,7 +1204,7 @@ static int iwl4965_fill_txpower_tbl(struct iwl_priv *priv, u8 band, u16 channel, iwl4965_interpolate_chan(priv, channel, &ch_eeprom_info); /* calculate tx gain adjustment based on power supply voltage */ - voltage = priv->calib_info->voltage; + voltage = le16_to_cpu(priv->calib_info->voltage); init_voltage = (s32)le32_to_cpu(priv->card_alive_init.voltage); voltage_compensation = iwl4965_get_voltage_compensation(voltage, init_voltage); diff --git a/drivers/net/wireless/iwlwifi/iwl-5000-hw.h b/drivers/net/wireless/iwlwifi/iwl-5000-hw.h index 4ef6804a455..bc056e9ab85 100644 --- a/drivers/net/wireless/iwlwifi/iwl-5000-hw.h +++ b/drivers/net/wireless/iwlwifi/iwl-5000-hw.h @@ -92,11 +92,15 @@ static inline s32 iwl_temp_calib_to_offset(struct iwl_priv *priv) { - u16 *temp_calib = (u16 *)iwl_eeprom_query_addr(priv, - EEPROM_5000_TEMPERATURE); - /* offset = temperature - voltage / coef */ - s32 offset = (s32)(temp_calib[0] - temp_calib[1] / IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF); - return offset; + u16 temperature, voltage; + __le16 *temp_calib = + (__le16 *)iwl_eeprom_query_addr(priv, EEPROM_5000_TEMPERATURE); + + temperature = le16_to_cpu(temp_calib[0]); + voltage = le16_to_cpu(temp_calib[1]); + + /* offset = temp - volt / coeff */ + return (s32)(temperature - voltage / IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF); } /* Fixed (non-configurable) rx data from phy */ diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c index e2f8615c8c9..33a5866538e 100644 --- a/drivers/net/wireless/iwlwifi/iwl-5000.c +++ b/drivers/net/wireless/iwlwifi/iwl-5000.c @@ -333,14 +333,15 @@ static void iwl5000_set_ct_threshold(struct iwl_priv *priv) static int iwl5000_set_Xtal_calib(struct iwl_priv *priv) { struct iwl_calib_xtal_freq_cmd cmd; - u16 *xtal_calib = (u16 *)iwl_eeprom_query_addr(priv, EEPROM_5000_XTAL); + __le16 *xtal_calib = + (__le16 *)iwl_eeprom_query_addr(priv, EEPROM_5000_XTAL); cmd.hdr.op_code = IWL_PHY_CALIBRATE_CRYSTAL_FRQ_CMD; cmd.hdr.first_group = 0; cmd.hdr.groups_num = 1; cmd.hdr.data_valid = 1; - cmd.cap_pin1 = (u8)xtal_calib[0]; - cmd.cap_pin2 = (u8)xtal_calib[1]; + cmd.cap_pin1 = le16_to_cpu(xtal_calib[0]); + cmd.cap_pin2 = le16_to_cpu(xtal_calib[1]); return iwl_calib_set(&priv->calib_results[IWL_CALIB_XTAL], (u8 *)&cmd, sizeof(cmd)); } diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom.h b/drivers/net/wireless/iwlwifi/iwl-eeprom.h index 5cd2b66bbe4..0cd9c02ee04 100644 --- a/drivers/net/wireless/iwlwifi/iwl-eeprom.h +++ b/drivers/net/wireless/iwlwifi/iwl-eeprom.h @@ -137,7 +137,7 @@ struct iwl_eeprom_channel { * */ struct iwl_eeprom_enhanced_txpwr { - u16 common; + __le16 common; s8 chain_a_max; s8 chain_b_max; s8 chain_c_max; @@ -360,7 +360,7 @@ struct iwl_eeprom_calib_subband_info { struct iwl_eeprom_calib_info { u8 saturation_power24; /* half-dBm (e.g. "34" = 17 dBm) */ u8 saturation_power52; /* half-dBm */ - s16 voltage; /* signed */ + __le16 voltage; /* signed */ struct iwl_eeprom_calib_subband_info band_info[EEPROM_TX_POWER_BANDS]; } __attribute__ ((packed)); -- cgit v1.2.3-70-g09d2 From bc45a67079c916a9bd0a95b0b879cc0f259bac6e Mon Sep 17 00:00:00 2001 From: Reinette Chatre Date: Mon, 14 Dec 2009 14:12:10 -0800 Subject: iwl3945: disable power save we see from http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2125 that power saving does not work well on 3945. Since then power saving has also been connected with association problems where an AP deathenticates a 3945 after it is unable to transmit data to it - this happens when 3945 enters power savings mode. Disable power save support until issues are resolved. Signed-off-by: Reinette Chatre CC: stable@kernel.org Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-3945.c | 2 ++ drivers/net/wireless/iwlwifi/iwl3945-base.c | 8 +++++--- 2 files changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c index 4609323d843..e413bd35bc4 100644 --- a/drivers/net/wireless/iwlwifi/iwl-3945.c +++ b/drivers/net/wireless/iwlwifi/iwl-3945.c @@ -2835,6 +2835,7 @@ static struct iwl_cfg iwl3945_bg_cfg = { .use_isr_legacy = true, .ht_greenfield_support = false, .led_compensation = 64, + .broken_powersave = true, }; static struct iwl_cfg iwl3945_abg_cfg = { @@ -2851,6 +2852,7 @@ static struct iwl_cfg iwl3945_abg_cfg = { .use_isr_legacy = true, .ht_greenfield_support = false, .led_compensation = 64, + .broken_powersave = true, }; struct pci_device_id iwl3945_hw_card_ids[] = { diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c index 4c0e4758689..c322d6c1318 100644 --- a/drivers/net/wireless/iwlwifi/iwl3945-base.c +++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c @@ -3932,9 +3932,11 @@ static int iwl3945_setup_mac(struct iwl_priv *priv) /* Tell mac80211 our characteristics */ hw->flags = IEEE80211_HW_SIGNAL_DBM | IEEE80211_HW_NOISE_DBM | - IEEE80211_HW_SPECTRUM_MGMT | - IEEE80211_HW_SUPPORTS_PS | - IEEE80211_HW_SUPPORTS_DYNAMIC_PS; + IEEE80211_HW_SPECTRUM_MGMT; + + if (!priv->cfg->broken_powersave) + hw->flags |= IEEE80211_HW_SUPPORTS_PS | + IEEE80211_HW_SUPPORTS_DYNAMIC_PS; hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | -- cgit v1.2.3-70-g09d2 From 731a29b74aa823e09a6547befce3f721bef32f86 Mon Sep 17 00:00:00 2001 From: Reinette Chatre Date: Mon, 14 Dec 2009 14:12:11 -0800 Subject: iwlwifi: initialize spinlock before use Recent powersaving work resulted in power management ops being called during EEPROM initialization. The lock used by these functions is not initialized at this time. Ensure lock is initialized before it is used. Signed-off-by: Reinette Chatre Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-agn.c | 4 ++-- drivers/net/wireless/iwlwifi/iwl3945-base.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index 715db219f90..1c9866daf81 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -3173,7 +3173,6 @@ static int iwl_init_drv(struct iwl_priv *priv) priv->ibss_beacon = NULL; - spin_lock_init(&priv->lock); spin_lock_init(&priv->sta_lock); spin_lock_init(&priv->hcmd_lock); @@ -3361,10 +3360,11 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) (unsigned long long) pci_resource_len(pdev, 0)); IWL_DEBUG_INFO(priv, "pci_resource_base = %p\n", priv->hw_base); - /* this spin lock will be used in apm_ops.init and EEPROM access + /* these spin locks will be used in apm_ops.init and EEPROM access * we should init now */ spin_lock_init(&priv->reg_lock); + spin_lock_init(&priv->lock); iwl_hw_detect(priv); IWL_INFO(priv, "Detected Intel Wireless WiFi Link %s REV=0x%X\n", priv->cfg->name, priv->hw_rev); diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c index c322d6c1318..96b23f4571c 100644 --- a/drivers/net/wireless/iwlwifi/iwl3945-base.c +++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c @@ -3863,7 +3863,6 @@ static int iwl3945_init_drv(struct iwl_priv *priv) priv->retry_rate = 1; priv->ibss_beacon = NULL; - spin_lock_init(&priv->lock); spin_lock_init(&priv->sta_lock); spin_lock_init(&priv->hcmd_lock); @@ -4055,10 +4054,11 @@ static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e * PCI Tx retries from interfering with C3 CPU state */ pci_write_config_byte(pdev, 0x41, 0x00); - /* this spin lock will be used in apm_ops.init and EEPROM access + /* these spin locks will be used in apm_ops.init and EEPROM access * we should init now */ spin_lock_init(&priv->reg_lock); + spin_lock_init(&priv->lock); /*********************** * 4. Read EEPROM -- cgit v1.2.3-70-g09d2 From dc57a303faab8562b92e85df0d79c4a05d7e2a61 Mon Sep 17 00:00:00 2001 From: Zhu Yi Date: Mon, 14 Dec 2009 14:12:12 -0800 Subject: iwl3945: fix panic in iwl3945 driver 3945 updated write_ptr without regard to read_ptr on the Tx path. This messes up our TFD on high load and result in the following: <1>[ 7290.414172] IP: [] iwl3945_rx_reply_tx+0xc1/0x450 [iwl3945] <4>[ 7290.414205] PGD 0 <1>[ 7290.414214] Thread overran stack, or stack corrupted <0>[ 7290.414229] Oops: 0002 [#1] PREEMPT SMP <0>[ 7290.414246] last sysfs file: /sys/devices/platform/coretemp.1/temp1_input <4>[ 7290.414265] CPU 0 <4>[ 7290.414274] Modules linked in: af_packet nfsd usb_storage usb_libusual cpufreq_powersave exportfs cpufreq_conservative iwl3945 nfs cpufreq_userspace snd_hda_codec_realtek acpi_cpufreq uvcvideo lockd iwlcore snd_hda_intel joydev coretemp nfs_acl videodev snd_hda_codec mac80211 v4l1_compat snd_hwdep sbp2 v4l2_compat_ioctl32 uhci_hcd psmouse auth_rpcgss ohci1394 cfg80211 ehci_hcd video ieee1394 snd_pcm serio_raw battery ac nvidia(P) usbcore output sunrpc evdev lirc_ene0100 snd_page_alloc rfkill tg3 libphy fuse lzo lzo_decompress lzo_compress <6>[ 7290.414486] Pid: 0, comm: swapper Tainted: P 2.6.32-rc8-wl #213 Aspire 5720 <6>[ 7290.414507] RIP: 0010:[] [] iwl3945_rx_reply_tx+0xc1/0x450 [iwl3945] <6>[ 7290.414541] RSP: 0018:ffff880002203d60 EFLAGS: 00010246 <6>[ 7290.414557] RAX: 000000000000004f RBX: ffff880064c11600 RCX: 0000000000000013 <6>[ 7290.414576] RDX: ffffffffa0ddcf20 RSI: ffff8800512b7008 RDI: 0000000000000038 <6>[ 7290.414596] RBP: ffff880002203dd0 R08: 0000000000000000 R09: 0000000000000100 <6>[ 7290.414616] R10: 0000000000000001 R11: 0000000000000000 R12: 00000000000000a0 <6>[ 7290.414635] R13: 0000000000000002 R14: 0000000000000013 R15: 0000000000020201 <6>[ 7290.414655] FS: 0000000000000000(0000) GS:ffff880002200000(0000) knlGS:0000000000000000 <6>[ 7290.414677] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b <6>[ 7290.414693] CR2: 0000000000000041 CR3: 0000000001001000 CR4: 00000000000006f0 <6>[ 7290.414712] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 <6>[ 7290.414732] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 <4>[ 7290.414752] Process swapper (pid: 0, threadinfo ffffffff81524000, task ffffffff81528b60) <0>[ 7290.414772] Stack: <4>[ 7290.414780] ffff880002203da0 0000000000000046 0000000000000000 0000000000000046 <4>[ 7290.414804] <0> 0000000000000282 0000000000000282 0000000000000282 ffff880064c12010 <4>[ 7290.414830] <0> ffff880002203db0 ffff880064c11600 ffff880064c12e50 ffff8800512b7000 <0>[ 7290.414858] Call Trace: <0>[ 7290.414867] <4>[ 7290.414884] [] iwl3945_irq_tasklet+0x657/0x1740 [iwl3945] <4>[ 7290.414910] [] ? _spin_unlock+0x30/0x60 <4>[ 7290.414931] [] tasklet_action+0x101/0x110 <4>[ 7290.414950] [] __do_softirq+0xc0/0x160 <4>[ 7290.414968] [] call_softirq+0x1c/0x30 <4>[ 7290.414986] [] do_softirq+0x75/0xb0 <4>[ 7290.415003] [] irq_exit+0x95/0xa0 <4>[ 7290.415020] [] do_IRQ+0x77/0xf0 <4>[ 7290.415038] [] ret_from_intr+0x0/0xf <0>[ 7290.415052] <4>[ 7290.415067] [] ? acpi_idle_enter_bm+0x270/0x2a5 <4>[ 7290.415087] [] ? acpi_idle_enter_bm+0x27a/0x2a5 <4>[ 7290.415107] [] ? acpi_idle_enter_bm+0x270/0x2a5 <4>[ 7290.415130] [] ? cpuidle_idle_call+0x93/0xf0 <4>[ 7290.415149] [] ? cpu_idle+0xa7/0x110 <4>[ 7290.415168] [] ? rest_init+0x75/0x80 <4>[ 7290.415187] [] ? start_kernel+0x3a7/0x3b3 <4>[ 7290.415206] [] ? x86_64_start_reservations+0x125/0x129 <4>[ 7290.415227] [] ? x86_64_start_kernel+0xe4/0xeb <0>[ 7290.415243] Code: 00 41 39 ce 0f 8d e8 01 00 00 48 8b 47 40 48 63 d2 48 69 d2 98 00 00 00 4c 8b 04 02 48 c7 c2 20 cf dd a0 49 8d 78 38 49 8d 40 4f 47 09 00 c6 47 0c 00 c6 47 0f 00 c6 47 12 00 c6 47 15 00 49 <1>[ 7290.415382] RIP [] iwl3945_rx_reply_tx+0xc1/0x450 [iwl3945] <4>[ 7290.415410] RSP <0>[ 7290.415421] CR2: 0000000000000041 <4>[ 7290.415436] ---[ end trace ec46807277caa515 ]--- <0>[ 7290.415450] Kernel panic - not syncing: Fatal exception in interrupt <4>[ 7290.415468] Pid: 0, comm: swapper Tainted: P D 2.6.32-rc8-wl #213 <4>[ 7290.415486] Call Trace: <4>[ 7290.415495] [] panic+0x7d/0x13a <4>[ 7290.415519] [] oops_end+0xda/0xe0 <4>[ 7290.415538] [] no_context+0xea/0x250 <4>[ 7290.415557] [] ? select_task_rq_fair+0x511/0x780 <4>[ 7290.415578] [] __bad_area_nosemaphore+0x125/0x1e0 <4>[ 7290.415597] [] ? __enqueue_entity+0x7c/0x80 <4>[ 7290.415616] [] ? enqueue_task_fair+0x111/0x150 <4>[ 7290.415636] [] bad_area_nosemaphore+0xe/0x10 <4>[ 7290.415656] [] do_page_fault+0x26a/0x320 <4>[ 7290.415674] [] page_fault+0x1f/0x30 <4>[ 7290.415697] [] ? iwl3945_rx_reply_tx+0xc1/0x450 [iwl3945] <4>[ 7290.415723] [] iwl3945_irq_tasklet+0x657/0x1740 [iwl3945] <4>[ 7290.415746] [] ? _spin_unlock+0x30/0x60 <4>[ 7290.415764] [] tasklet_action+0x101/0x110 <4>[ 7290.415783] [] __do_softirq+0xc0/0x160 <4>[ 7290.415801] [] call_softirq+0x1c/0x30 <4>[ 7290.415818] [] do_softirq+0x75/0xb0 <4>[ 7290.415835] [] irq_exit+0x95/0xa0 <4>[ 7290.415852] [] do_IRQ+0x77/0xf0 <4>[ 7290.415869] [] ret_from_intr+0x0/0xf <4>[ 7290.415883] [] ? acpi_idle_enter_bm+0x270/0x2a5 <4>[ 7290.415911] [] ? acpi_idle_enter_bm+0x27a/0x2a5 <4>[ 7290.415931] [] ? acpi_idle_enter_bm+0x270/0x2a5 <4>[ 7290.415952] [] ? cpuidle_idle_call+0x93/0xf0 <4>[ 7290.415971] [] ? cpu_idle+0xa7/0x110 <4>[ 7290.415989] [] ? rest_init+0x75/0x80 <4>[ 7290.416007] [] ? start_kernel+0x3a7/0x3b3 <4>[ 7290.416026] [] ? x86_64_start_reservations+0x125/0x129 <4>[ 7290.416047] [] ? x86_64_start_kernel+0xe4/0xeb Reported-by: Maxim Levitsky Tested-by: Maxim Levitsky Signed-off-by: Zhu Yi Signed-off-by: Reinette Chatre CC: stable@kernel.org Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl3945-base.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c index 96b23f4571c..e5d8fa38432 100644 --- a/drivers/net/wireless/iwlwifi/iwl3945-base.c +++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c @@ -548,6 +548,9 @@ static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb) txq = &priv->txq[txq_id]; q = &txq->q; + if ((iwl_queue_space(q) < q->high_mark)) + goto drop; + spin_lock_irqsave(&priv->lock, flags); idx = get_cmd_index(q, q->write_ptr, 0); -- cgit v1.2.3-70-g09d2 From 6c3069b1e7e983e176a5f826e2edffefdd404a08 Mon Sep 17 00:00:00 2001 From: Reinette Chatre Date: Mon, 14 Dec 2009 14:12:13 -0800 Subject: iwlwifi: fix 40MHz operation setting on cards that do not allow it Some devices have 40MHz operation disabled entirely. Ensure that driver do not enable 40MHz operation if a channel does not allow this. This fixes http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2135 Signed-off-by: Reinette Chatre CC: stable@kernel.org Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-eeprom.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom.c b/drivers/net/wireless/iwlwifi/iwl-eeprom.c index 08ad6e41a1c..4a30969689f 100644 --- a/drivers/net/wireless/iwlwifi/iwl-eeprom.c +++ b/drivers/net/wireless/iwlwifi/iwl-eeprom.c @@ -749,7 +749,8 @@ static int iwl_mod_ht40_chan_info(struct iwl_priv *priv, ch_info->ht40_eeprom = *eeprom_ch; ch_info->ht40_max_power_avg = eeprom_ch->max_power_avg; ch_info->ht40_flags = eeprom_ch->flags; - ch_info->ht40_extension_channel &= ~clear_ht40_extension_channel; + if (eeprom_ch->flags & EEPROM_CHANNEL_VALID) + ch_info->ht40_extension_channel &= ~clear_ht40_extension_channel; return 0; } -- cgit v1.2.3-70-g09d2 From 7988436c6330eab98f64b6e799ce2d30fe5ffd55 Mon Sep 17 00:00:00 2001 From: Gertjan van Wingerde Date: Mon, 14 Dec 2009 23:32:31 +0100 Subject: rt2x00: Fix calculation of rt2800 iveiv entry offset. Fix typo. The index should be multiplied by the entry size, not 'and'-ed. Found via code-inspection. Signed-off-by: Gertjan van Wingerde Acked-by: Ivo van Doorn Signed-off-by: John W. Linville --- drivers/net/wireless/rt2x00/rt2800.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/rt2x00/rt2800.h b/drivers/net/wireless/rt2x00/rt2800.h index c5fe867665e..1a7eae357fe 100644 --- a/drivers/net/wireless/rt2x00/rt2800.h +++ b/drivers/net/wireless/rt2x00/rt2800.h @@ -1323,7 +1323,7 @@ #define PAIRWISE_KEY_ENTRY(__idx) \ ( PAIRWISE_KEY_TABLE_BASE + ((__idx) * sizeof(struct hw_key_entry)) ) #define MAC_IVEIV_ENTRY(__idx) \ - ( MAC_IVEIV_TABLE_BASE + ((__idx) & sizeof(struct mac_iveiv_entry)) ) + ( MAC_IVEIV_TABLE_BASE + ((__idx) * sizeof(struct mac_iveiv_entry)) ) #define MAC_WCID_ATTR_ENTRY(__idx) \ ( MAC_WCID_ATTRIBUTE_BASE + ((__idx) * sizeof(u32)) ) #define SHARED_KEY_ENTRY(__idx) \ -- cgit v1.2.3-70-g09d2 From 17b182e3db255ab068c2ebb85f34840607a53cc4 Mon Sep 17 00:00:00 2001 From: Sujith Date: Mon, 14 Dec 2009 14:56:56 +0530 Subject: ath9k: Fix bug in assigning sequence number The internal, driver-specific maintenance of sequence numbers is applicable only for HT frames. Also, remove comments that are not relevant anymore. Signed-off-by: Sujith Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/xmit.c | 13 +++---------- 1 file changed, 3 insertions(+), 10 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index 67706205699..fd0cf4d854e 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -1414,17 +1414,9 @@ static void assign_aggr_tid_seqno(struct sk_buff *skb, * For HT capable stations, we save tidno for later use. * We also override seqno set by upper layer with the one * in tx aggregation state. - * - * If fragmentation is on, the sequence number is - * not overridden, since it has been - * incremented by the fragmentation routine. - * - * FIXME: check if the fragmentation threshold exceeds - * IEEE80211 max. */ tid = ATH_AN_2_TID(an, bf->bf_tidno); - hdr->seq_ctrl = cpu_to_le16(tid->seq_next << - IEEE80211_SEQ_SEQ_SHIFT); + hdr->seq_ctrl = cpu_to_le16(tid->seq_next << IEEE80211_SEQ_SEQ_SHIFT); bf->bf_seqno = tid->seq_next; INCR(tid->seq_next, IEEE80211_SEQ_MAX); } @@ -1636,7 +1628,8 @@ static int ath_tx_setup_buffer(struct ieee80211_hw *hw, struct ath_buf *bf, bf->bf_keyix = ATH9K_TXKEYIX_INVALID; } - if (ieee80211_is_data_qos(fc) && (sc->sc_flags & SC_OP_TXAGGR)) + if (ieee80211_is_data_qos(fc) && bf_isht(bf) && + (sc->sc_flags & SC_OP_TXAGGR)) assign_aggr_tid_seqno(skb, bf); bf->bf_mpdu = skb; -- cgit v1.2.3-70-g09d2 From e8009e9850d59000d518296af372888911a129bd Mon Sep 17 00:00:00 2001 From: Sujith Date: Mon, 14 Dec 2009 14:57:08 +0530 Subject: ath9k: Fix TX queue draining When TX DMA termination has failed, the HW has to be reset completely. Doing a fast channel change in this case is insufficient. Also, change the debug level of a couple of messages to FATAL. Cc: stable@kernel.org Signed-off-by: Sujith Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/mac.c | 2 +- drivers/net/wireless/ath/ath9k/xmit.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/mac.c b/drivers/net/wireless/ath/ath9k/mac.c index 71b84d91dcf..efc420cd42b 100644 --- a/drivers/net/wireless/ath/ath9k/mac.c +++ b/drivers/net/wireless/ath/ath9k/mac.c @@ -186,7 +186,7 @@ bool ath9k_hw_stoptxdma(struct ath_hw *ah, u32 q) wait = wait_time; while (ath9k_hw_numtxpending(ah, q)) { if ((--wait) == 0) { - ath_print(common, ATH_DBG_QUEUE, + ath_print(common, ATH_DBG_FATAL, "Failed to stop TX DMA in 100 " "msec after killing last frame\n"); break; diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index fd0cf4d854e..1e813bbf474 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -1108,11 +1108,11 @@ void ath_drain_all_txq(struct ath_softc *sc, bool retry_tx) if (npend) { int r; - ath_print(common, ATH_DBG_XMIT, + ath_print(common, ATH_DBG_FATAL, "Unable to stop TxDMA. Reset HAL!\n"); spin_lock_bh(&sc->sc_resetlock); - r = ath9k_hw_reset(ah, sc->sc_ah->curchan, true); + r = ath9k_hw_reset(ah, sc->sc_ah->curchan, false); if (r) ath_print(common, ATH_DBG_FATAL, "Unable to reset hardware; reset status %d\n", -- cgit v1.2.3-70-g09d2 From 2ab81d4a9a5ecb13d343269b3cdf5d975c81c570 Mon Sep 17 00:00:00 2001 From: Sujith Date: Mon, 14 Dec 2009 16:34:56 +0530 Subject: ath9k: Stop ANI when doing a reset The MIB counters are disabled when doing a chip reset. Since ANI depends on the MIB registers for its operation, relying on the contents of said registers during HW reset results in sub-optimal performance. Cc: stable@kernel.org Signed-off-by: Sujith Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/main.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index c4874345251..9e68c1a8aef 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -1973,6 +1973,9 @@ int ath_reset(struct ath_softc *sc, bool retry_tx) struct ieee80211_hw *hw = sc->hw; int r; + /* Stop ANI */ + del_timer_sync(&common->ani.timer); + ath9k_hw_set_interrupts(ah, 0); ath_drain_all_txq(sc, retry_tx); ath_stoprecv(sc); @@ -2014,6 +2017,9 @@ int ath_reset(struct ath_softc *sc, bool retry_tx) } } + /* Start ANI */ + ath_start_ani(common); + return r; } -- cgit v1.2.3-70-g09d2 From 77ca7d9e2c099b4484bb10075948b4267f37d9fa Mon Sep 17 00:00:00 2001 From: "akpm@linux-foundation.org" Date: Mon, 14 Dec 2009 15:56:54 -0800 Subject: drivers/net/wireless/iwlwifi/iwl-tx.c: fix gcc-3.4.5 warning drivers/net/wireless/iwlwifi/iwl-tx.c: In function `iwl_hw_txq_ctx_free': drivers/net/wireless/iwlwifi/iwl-tx.c:410: warning: suggest explicit braces to avoid ambiguous `else' Cc: Zhu Yi Cc: Reinette Chatre Signed-off-by: Andrew Morton Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-tx.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c index 00da5e152d4..87ce2bd292c 100644 --- a/drivers/net/wireless/iwlwifi/iwl-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-tx.c @@ -407,13 +407,14 @@ void iwl_hw_txq_ctx_free(struct iwl_priv *priv) int txq_id; /* Tx queues */ - if (priv->txq) + if (priv->txq) { for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) if (txq_id == IWL_CMD_QUEUE_NUM) iwl_cmd_queue_free(priv); else iwl_tx_queue_free(priv, txq_id); + } iwl_free_dma_ptr(priv, &priv->kw); iwl_free_dma_ptr(priv, &priv->scd_bc_tbls); -- cgit v1.2.3-70-g09d2 From 45b241689179a6065384260242637cf21dabfb2d Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Wed, 16 Dec 2009 05:12:58 +0100 Subject: Libertas: fix buffer overflow in lbs_get_essid() The libertas driver copies the SSID buffer back to the wireless core and appends a trailing NULL character for termination. This is a) unnecessary because the buffer is allocated with kzalloc and is hence already NULLed when this function is called, and b) for priv->curbssparams.ssid_len == 32, it writes back one byte too much which causes memory corruptions. Fix this by removing the extra write. Signed-off-by: Daniel Mack Cc: Stephen Hemminger Cc: Maithili Hinge Cc: Kiran Divekar Cc: Michael Hirsch Cc: netdev@vger.kernel.org Cc: libertas-dev@lists.infradead.org Cc: linux-wireless@lists.infradead.org Cc: stable@kernel.org Acked-by: Holger Schurig Acked-by: Dan Williams Signed-off-by: John W. Linville --- drivers/net/wireless/libertas/wext.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/net/wireless/libertas/wext.c b/drivers/net/wireless/libertas/wext.c index a8eb9e1fcf3..4b1aab593a8 100644 --- a/drivers/net/wireless/libertas/wext.c +++ b/drivers/net/wireless/libertas/wext.c @@ -2025,10 +2025,8 @@ static int lbs_get_essid(struct net_device *dev, struct iw_request_info *info, if (priv->connect_status == LBS_CONNECTED) { memcpy(extra, priv->curbssparams.ssid, priv->curbssparams.ssid_len); - extra[priv->curbssparams.ssid_len] = '\0'; } else { memset(extra, 0, 32); - extra[priv->curbssparams.ssid_len] = '\0'; } /* * If none, we may want to get the one that was set -- cgit v1.2.3-70-g09d2 From 8585c2b896861aacd15337c3c7e58ad114e6cf60 Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Wed, 16 Dec 2009 17:01:38 +0100 Subject: iwmc3200wifi: Fix test of unsigned in iwm_ntf_stop_resume_tx() `queue' was unsigned so the test did not work. Signed-off-by: Roel Kluin Reviewed-by: Pavel Roskin Acked-by: Zhu Yi Signed-off-by: John W. Linville --- drivers/net/wireless/iwmc3200wifi/iwm.h | 2 +- drivers/net/wireless/iwmc3200wifi/netdev.c | 2 +- drivers/net/wireless/iwmc3200wifi/rx.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/iwmc3200wifi/iwm.h b/drivers/net/wireless/iwmc3200wifi/iwm.h index 5a26bb05a33..79ffa3b98d7 100644 --- a/drivers/net/wireless/iwmc3200wifi/iwm.h +++ b/drivers/net/wireless/iwmc3200wifi/iwm.h @@ -349,7 +349,7 @@ int iwm_up(struct iwm_priv *iwm); int iwm_down(struct iwm_priv *iwm); /* TX API */ -u16 iwm_tid_to_queue(u16 tid); +int iwm_tid_to_queue(u16 tid); void iwm_tx_credit_inc(struct iwm_priv *iwm, int id, int total_freed_pages); void iwm_tx_worker(struct work_struct *work); int iwm_xmit_frame(struct sk_buff *skb, struct net_device *netdev); diff --git a/drivers/net/wireless/iwmc3200wifi/netdev.c b/drivers/net/wireless/iwmc3200wifi/netdev.c index e4f0f8705f6..c4c0d23c63e 100644 --- a/drivers/net/wireless/iwmc3200wifi/netdev.c +++ b/drivers/net/wireless/iwmc3200wifi/netdev.c @@ -76,7 +76,7 @@ static int iwm_stop(struct net_device *ndev) */ static const u16 iwm_1d_to_queue[8] = { 1, 0, 0, 1, 2, 2, 3, 3 }; -u16 iwm_tid_to_queue(u16 tid) +int iwm_tid_to_queue(u16 tid) { if (tid > IWM_UMAC_TID_NR - 2) return -EINVAL; diff --git a/drivers/net/wireless/iwmc3200wifi/rx.c b/drivers/net/wireless/iwmc3200wifi/rx.c index 72c27a3e552..3db3d8b0749 100644 --- a/drivers/net/wireless/iwmc3200wifi/rx.c +++ b/drivers/net/wireless/iwmc3200wifi/rx.c @@ -1126,7 +1126,7 @@ static int iwm_ntf_stop_resume_tx(struct iwm_priv *iwm, u8 *buf, if (!stop) { struct iwm_tx_queue *txq; - u16 queue = iwm_tid_to_queue(bit); + int queue = iwm_tid_to_queue(bit); if (queue < 0) continue; -- cgit v1.2.3-70-g09d2 From 9a418af5df03ad133cd8c8f6742b75e542db6392 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 17 Dec 2009 13:55:48 +0100 Subject: mac80211: fix peer HT capabilities I noticed yesterday, because Jeff had noticed a speed regression, cf. bug http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2138 that the SM PS settings for peers were wrong. Instead of overwriting the SM PS settings with the local bits, we need to keep the remote bits. The bug was part of the original HT code from over two years ago, but unfortunately nobody noticed that it makes no sense -- we shouldn't be overwriting the peer's setting with our own but rather keep it intact when masking the peer capabilities with our own. While fixing that, I noticed that the masking of capabilities is completely useless for most of the bits, so also fix those other bits. Finally, I also noticed that PSMP_SUPPORT no longer exists in the final 802.11n version, so also remove that. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- drivers/net/wireless/rt2x00/rt2800lib.c | 3 +-- include/linux/ieee80211.h | 2 +- net/mac80211/ht.c | 25 ++++++++++++++++++++++--- 3 files changed, 24 insertions(+), 6 deletions(-) diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c index 6bf6c0f12f3..27bf887f145 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -2080,8 +2080,7 @@ int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev) IEEE80211_HT_CAP_SGI_20 | IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_TX_STBC | - IEEE80211_HT_CAP_RX_STBC | - IEEE80211_HT_CAP_PSMP_SUPPORT; + IEEE80211_HT_CAP_RX_STBC; spec->ht.ampdu_factor = 3; spec->ht.ampdu_density = 4; spec->ht.mcs.tx_params = diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index d9724a28c0c..163c840437d 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -832,7 +832,7 @@ struct ieee80211_ht_cap { #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_RESERVED 0x2000 #define IEEE80211_HT_CAP_40MHZ_INTOLERANT 0x4000 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT 0x8000 diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c index 3787455fb69..d7dcee68072 100644 --- a/net/mac80211/ht.c +++ b/net/mac80211/ht.c @@ -34,9 +34,28 @@ void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband, ht_cap->ht_supported = true; - ht_cap->cap = le16_to_cpu(ht_cap_ie->cap_info) & sband->ht_cap.cap; - ht_cap->cap &= ~IEEE80211_HT_CAP_SM_PS; - ht_cap->cap |= sband->ht_cap.cap & IEEE80211_HT_CAP_SM_PS; + /* + * The bits listed in this expression should be + * the same for the peer and us, if the station + * advertises more then we can't use those thus + * we mask them out. + */ + ht_cap->cap = le16_to_cpu(ht_cap_ie->cap_info) & + (sband->ht_cap.cap | + ~(IEEE80211_HT_CAP_LDPC_CODING | + IEEE80211_HT_CAP_SUP_WIDTH_20_40 | + IEEE80211_HT_CAP_GRN_FLD | + IEEE80211_HT_CAP_SGI_20 | + IEEE80211_HT_CAP_SGI_40 | + IEEE80211_HT_CAP_DSSSCCK40)); + /* + * The STBC bits are asymmetric -- if we don't have + * TX then mask out the peer's RX and vice versa. + */ + if (!(sband->ht_cap.cap & IEEE80211_HT_CAP_TX_STBC)) + ht_cap->cap &= ~IEEE80211_HT_CAP_RX_STBC; + if (!(sband->ht_cap.cap & IEEE80211_HT_CAP_RX_STBC)) + ht_cap->cap &= ~IEEE80211_HT_CAP_TX_STBC; ampdu_info = ht_cap_ie->ampdu_params_info; ht_cap->ampdu_factor = -- cgit v1.2.3-70-g09d2 From 0183826b58a2712ffe608bc3302447be3e6a3ab8 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 17 Dec 2009 16:16:53 +0100 Subject: mac80211: fix WMM AP settings application My commit 77fdaa12cea26c204cc12c312fe40bc0f3dcdfd8 Author: Johannes Berg Date: Tue Jul 7 03:45:17 2009 +0200 mac80211: rework MLME for multiple authentications inadvertedly broke WMM because it removed, along with a bunch of other now useless initialisations, the line initialising sdata->u.mgd.wmm_last_param_set to -1 which would make it adopt any WMM parameter set. If, as is usually the case, the AP uses WMM parameter set sequence number zero, we'd never update it until the AP changes the sequence number. Add the missing initialisation back to get the WMM settings from the AP applied locally. Signed-off-by: Johannes Berg Cc: stable@kernel.org [2.6.31+] Signed-off-by: John W. Linville --- net/mac80211/mlme.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index d8d50fb5e82..c79e59f82fd 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -915,6 +915,14 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, sdata->u.mgd.flags &= ~(IEEE80211_STA_CONNECTION_POLL | IEEE80211_STA_BEACON_POLL); + /* + * Always handle WMM once after association regardless + * of the first value the AP uses. Setting -1 here has + * that effect because the AP values is an unsigned + * 4-bit value. + */ + sdata->u.mgd.wmm_last_param_set = -1; + ieee80211_led_assoc(local, 1); sdata->vif.bss_conf.assoc = 1; -- cgit v1.2.3-70-g09d2 From 92c6f8d849178582fc527aaf1e51dd37a74767d3 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Fri, 18 Dec 2009 11:19:32 -0800 Subject: ps3_gelic_wireless: Fix build failure due to missing WEXT_PRIV The option to support the old style PSK interface in the PS3 GELIC wireless drivers requires CONFIG_WEXT_PRIV to be set Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Geoff Levand Signed-off-by: John W. Linville --- drivers/net/Kconfig | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 0bbd5ae4986..18ff622703b 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -2344,6 +2344,7 @@ config GELIC_NET config GELIC_WIRELESS bool "PS3 Wireless support" + depends on WLAN depends on GELIC_NET select WIRELESS_EXT help @@ -2356,6 +2357,7 @@ config GELIC_WIRELESS config GELIC_WIRELESS_OLD_PSK_INTERFACE bool "PS3 Wireless private PSK interface (OBSOLETE)" depends on GELIC_WIRELESS + select WEXT_PRIV help This option retains the obsolete private interface to pass the PSK from user space programs to the driver. The PSK -- cgit v1.2.3-70-g09d2