From 4ef250114f6672dd36f9b961a71d229642517645 Mon Sep 17 00:00:00 2001 From: Dominik Geyer Date: Tue, 29 Dec 2009 08:27:57 +0100 Subject: ath9k: Fix Kconfig depends for ATH9K_DEBUGFS Add missing DEBUG_FS dependency for ATH9K_DEBUGFS in ath9k's Kconfig. Signed-off-by: Dominik D. Geyer Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath9k/Kconfig b/drivers/net/wireless/ath/ath9k/Kconfig index 03a1106ad72..5774cea23a3 100644 --- a/drivers/net/wireless/ath/ath9k/Kconfig +++ b/drivers/net/wireless/ath/ath9k/Kconfig @@ -25,7 +25,7 @@ config ATH9K config ATH9K_DEBUGFS bool "Atheros ath9k debugging" - depends on ATH9K + depends on ATH9K && DEBUG_FS ---help--- Say Y, if you need access to ath9k's statistics for interrupts, rate control, etc. -- cgit v1.2.3 From 13bda1225072f26603d3aeefc1f14c18b2ab29cd Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Tue, 29 Dec 2009 22:57:28 +0800 Subject: ath9k: fix ito64 The unit of sizeof() is byte instead of bit, so fix it. The patch can fix debug output of some dma_addr_t variables. Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ath9k.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index e2cef2ff5d8..1597a42731e 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -33,11 +33,11 @@ struct ath_node; /* Macro to expand scalars to 64-bit objects */ -#define ito64(x) (sizeof(x) == 8) ? \ +#define ito64(x) (sizeof(x) == 1) ? \ (((unsigned long long int)(x)) & (0xff)) : \ - (sizeof(x) == 16) ? \ + (sizeof(x) == 2) ? \ (((unsigned long long int)(x)) & 0xffff) : \ - ((sizeof(x) == 32) ? \ + ((sizeof(x) == 4) ? \ (((unsigned long long int)(x)) & 0xffffffff) : \ (unsigned long long int)(x)) -- cgit v1.2.3 From 90852f7aed0f90d443efd7e0f9b82d8ac8186848 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Sat, 2 Jan 2010 10:31:42 +0100 Subject: mwl8k: fix configure_filter() memory leak on error If there was an error acquiring the firmware lock in mwl8k_configure_filter(), we would end up leaking the multicast command packet prepared by mwl8k_prepare_multicast(). 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 59d49159cf2..59f92105b0c 100644 --- a/drivers/net/wireless/mwl8k.c +++ b/drivers/net/wireless/mwl8k.c @@ -3157,8 +3157,10 @@ static void mwl8k_configure_filter(struct ieee80211_hw *hw, /* Clear unsupported feature flags */ *total_flags &= FIF_ALLMULTI | FIF_BCN_PRBRESP_PROMISC; - if (mwl8k_fw_lock(hw)) + if (mwl8k_fw_lock(hw)) { + kfree(cmd); return; + } if (priv->sniffer_enabled) { mwl8k_enable_sniffer(hw, 0); -- cgit v1.2.3 From 8a9ac160e844c7ce8074f6aa531feefb4acdee7c Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sun, 3 Jan 2010 11:19:35 +0200 Subject: iwl: off by one bug tid is used as an array offset. agg = &priv->stations[sta_id].tid[tid].agg; iwl4965_tx_status_reply_tx(priv, agg, tx_resp, txq_id, index); It should be limitted to MAX_TID_COUNT - 1; struct iwl_tid_data tid[MAX_TID_COUNT]; regards, dan carpenter Signed-off-by: Dan Carpenter CC: stable@kernel.org Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-4965.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c index 484c5fdf7c2..761aab127e7 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965.c +++ b/drivers/net/wireless/iwlwifi/iwl-4965.c @@ -1961,7 +1961,7 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv, struct ieee80211_tx_info *info; struct iwl4965_tx_resp *tx_resp = (void *)&pkt->u.raw[0]; u32 status = le32_to_cpu(tx_resp->u.status); - int tid = MAX_TID_COUNT; + int tid = MAX_TID_COUNT - 1; int sta_id; int freed; u8 *qc = NULL; -- cgit v1.2.3 From 7de3c5dc0ac89b847b00f25d16976c158dc38e4c Mon Sep 17 00:00:00 2001 From: Benoit Papillault Date: Sun, 3 Jan 2010 10:20:01 +0100 Subject: zd1211rw: Fix multicast filtering. If multicast parameter (as returned by zd_op_prepare_multicast) has changed, no bit in changed_flags is set. To handle this situation, we do not return if changed_flags is 0. If we do so, we will have some issue with IPv6 which uses multicast for link layer address resolution. Signed-off-by: Benoit Papillault Signed-off-by: John W. Linville --- drivers/net/wireless/zd1211rw/zd_mac.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/net/wireless/zd1211rw/zd_mac.c b/drivers/net/wireless/zd1211rw/zd_mac.c index cc648efb8ed..9d9b263733e 100644 --- a/drivers/net/wireless/zd1211rw/zd_mac.c +++ b/drivers/net/wireless/zd1211rw/zd_mac.c @@ -987,12 +987,13 @@ static void zd_op_configure_filter(struct ieee80211_hw *hw, changed_flags &= SUPPORTED_FIF_FLAGS; *new_flags &= SUPPORTED_FIF_FLAGS; - /* changed_flags is always populated but this driver - * doesn't support all FIF flags so its possible we don't - * need to do anything */ - if (!changed_flags) - return; - + /* + * If multicast parameter (as returned by zd_op_prepare_multicast) + * has changed, no bit in changed_flags is set. To handle this + * situation, we do not return if changed_flags is 0. If we do so, + * we will have some issue with IPv6 which uses multicast for link + * layer address resolution. + */ if (*new_flags & (FIF_PROMISC_IN_BSS | FIF_ALLMULTI)) zd_mc_add_all(&hash); -- cgit v1.2.3 From 359207c687cc8f4f9845c8dadd0d6dabad44e584 Mon Sep 17 00:00:00 2001 From: "Luis R. Rodriguez" Date: Mon, 4 Jan 2010 10:40:39 -0500 Subject: ath5k: Fix eeprom checksum check for custom sized eeproms Commit 8bf3d79bc401ca417ccf9fc076d3295d1a71dbf5 enabled EEPROM checksum checks to avoid bogus bug reports but failed to address updating the code to consider devices with custom EEPROM sizes. Devices with custom sized EEPROMs have the upper limit size stuffed in the EEPROM. Use this as the upper limit instead of the static default size. In case of a checksum error also provide back the max size and whether or not this was the default size or a custom one. If the EEPROM is busted we add a failsafe check to ensure we don't loop forever or try to read bogus areas of hardware. This closes bug 14874 http://bugzilla.kernel.org/show_bug.cgi?id=14874 Cc: stable@kernel.org Cc: David Quan Cc: Stephen Beahm Reported-by: Joshua Covington Signed-off-by: Luis R. Rodriguez Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath5k/eeprom.c | 32 +++++++++++++++++++++++++++++--- drivers/net/wireless/ath/ath5k/eeprom.h | 8 ++++++++ 2 files changed, 37 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/ath/ath5k/eeprom.c b/drivers/net/wireless/ath/ath5k/eeprom.c index 79188526260..9a96550006a 100644 --- a/drivers/net/wireless/ath/ath5k/eeprom.c +++ b/drivers/net/wireless/ath/ath5k/eeprom.c @@ -97,7 +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; + u32 cksum, offset, eep_max = AR5K_EEPROM_INFO_MAX; /* * Read values from EEPROM and store them in the capability structure @@ -116,12 +116,38 @@ ath5k_eeprom_init_header(struct ath5k_hw *ah) * Validate the checksum of the EEPROM date. There are some * devices with invalid EEPROMs. */ - for (cksum = 0, offset = 0; offset < AR5K_EEPROM_INFO_MAX; offset++) { + AR5K_EEPROM_READ(AR5K_EEPROM_SIZE_UPPER, val); + if (val) { + eep_max = (val & AR5K_EEPROM_SIZE_UPPER_MASK) << + AR5K_EEPROM_SIZE_ENDLOC_SHIFT; + AR5K_EEPROM_READ(AR5K_EEPROM_SIZE_LOWER, val); + eep_max = (eep_max | val) - AR5K_EEPROM_INFO_BASE; + + /* + * Fail safe check to prevent stupid loops due + * to busted EEPROMs. XXX: This value is likely too + * big still, waiting on a better value. + */ + if (eep_max > (3 * AR5K_EEPROM_INFO_MAX)) { + ATH5K_ERR(ah->ah_sc, "Invalid max custom EEPROM size: " + "%d (0x%04x) max expected: %d (0x%04x)\n", + eep_max, eep_max, + 3 * AR5K_EEPROM_INFO_MAX, + 3 * AR5K_EEPROM_INFO_MAX); + return -EIO; + } + } + + for (cksum = 0, offset = 0; offset < eep_max; offset++) { AR5K_EEPROM_READ(AR5K_EEPROM_INFO(offset), val); cksum ^= val; } if (cksum != AR5K_EEPROM_INFO_CKSUM) { - ATH5K_ERR(ah->ah_sc, "Invalid EEPROM checksum 0x%04x\n", cksum); + ATH5K_ERR(ah->ah_sc, "Invalid EEPROM " + "checksum: 0x%04x eep_max: 0x%04x (%s)\n", + cksum, eep_max, + eep_max == AR5K_EEPROM_INFO_MAX ? + "default size" : "custom size"); return -EIO; } diff --git a/drivers/net/wireless/ath/ath5k/eeprom.h b/drivers/net/wireless/ath/ath5k/eeprom.h index 0123f3521a0..473a483bb9c 100644 --- a/drivers/net/wireless/ath/ath5k/eeprom.h +++ b/drivers/net/wireless/ath/ath5k/eeprom.h @@ -37,6 +37,14 @@ #define AR5K_EEPROM_RFKILL_POLARITY_S 1 #define AR5K_EEPROM_REG_DOMAIN 0x00bf /* EEPROM regdom */ + +/* FLASH(EEPROM) Defines for AR531X chips */ +#define AR5K_EEPROM_SIZE_LOWER 0x1b /* size info -- lower */ +#define AR5K_EEPROM_SIZE_UPPER 0x1c /* size info -- upper */ +#define AR5K_EEPROM_SIZE_UPPER_MASK 0xfff0 +#define AR5K_EEPROM_SIZE_UPPER_SHIFT 4 +#define AR5K_EEPROM_SIZE_ENDLOC_SHIFT 12 + #define AR5K_EEPROM_CHECKSUM 0x00c0 /* EEPROM checksum */ #define AR5K_EEPROM_INFO_BASE 0x00c0 /* EEPROM header */ #define AR5K_EEPROM_INFO_MAX (0x400 - AR5K_EEPROM_INFO_BASE) -- cgit v1.2.3 From e12822e1d3fface0d9e1095c5177e10141bd6bd6 Mon Sep 17 00:00:00 2001 From: "Luis R. Rodriguez" Date: Mon, 4 Jan 2010 11:37:39 -0500 Subject: cfg80211: fix syntax error on user regulatory hints This fixes a syntax error when setting up the user regulatory hint. This change yields the same exact binary object though so it ends up just being a syntax typo fix, fortunately. Cc: stable@kernel.org Signed-off-by: Luis R. Rodriguez Signed-off-by: John W. Linville --- net/wireless/reg.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/wireless/reg.c b/net/wireless/reg.c index baa898add28..7a0754c92df 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -1690,7 +1690,7 @@ int regulatory_hint_user(const char *alpha2) request->wiphy_idx = WIPHY_IDX_STALE; request->alpha2[0] = alpha2[0]; request->alpha2[1] = alpha2[1]; - request->initiator = NL80211_REGDOM_SET_BY_USER, + request->initiator = NL80211_REGDOM_SET_BY_USER; queue_regulatory_request(request); -- cgit v1.2.3 From b59a52f12e483b79e7d32da7ec30dcf3b2e0210b Mon Sep 17 00:00:00 2001 From: Pavel Roskin Date: Wed, 30 Dec 2009 11:36:29 +0100 Subject: rt2x00: use correct headroom for transmission Use rt2x00dev->ops->extra_tx_headroom, not rt2x00dev->hw->extra_tx_headroom in the tx code, as the later may include other headroom not to be used in the chipset driver. Signed-off-by: Pavel Roskin Signed-off-by: Gertjan van Wingerde Acked-by: Ivo van Doorn Signed-off-by: John W. Linville --- drivers/net/wireless/rt2x00/rt2x00queue.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c index 239afc7a9c0..9915a09141e 100644 --- a/drivers/net/wireless/rt2x00/rt2x00queue.c +++ b/drivers/net/wireless/rt2x00/rt2x00queue.c @@ -104,7 +104,7 @@ void rt2x00queue_map_txskb(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb) * is also mapped to the DMA so it can be used for transfering * additional descriptor information to the hardware. */ - skb_push(skb, rt2x00dev->hw->extra_tx_headroom); + skb_push(skb, rt2x00dev->ops->extra_tx_headroom); skbdesc->skb_dma = dma_map_single(rt2x00dev->dev, skb->data, skb->len, DMA_TO_DEVICE); @@ -112,7 +112,7 @@ void rt2x00queue_map_txskb(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb) /* * Restore data pointer to original location again. */ - skb_pull(skb, rt2x00dev->hw->extra_tx_headroom); + skb_pull(skb, rt2x00dev->ops->extra_tx_headroom); skbdesc->flags |= SKBDESC_DMA_MAPPED_TX; } @@ -134,7 +134,7 @@ void rt2x00queue_unmap_skb(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb) * by the driver, but it was actually mapped to DMA. */ dma_unmap_single(rt2x00dev->dev, skbdesc->skb_dma, - skb->len + rt2x00dev->hw->extra_tx_headroom, + skb->len + rt2x00dev->ops->extra_tx_headroom, DMA_TO_DEVICE); skbdesc->flags &= ~SKBDESC_DMA_MAPPED_TX; } -- cgit v1.2.3 From 301a8234ea81938f0f083ae4e274d9c9296f3c86 Mon Sep 17 00:00:00 2001 From: Gertjan van Wingerde Date: Wed, 30 Dec 2009 11:36:33 +0100 Subject: rt2x00: Fix LED configuration setting for rt2800. rt2800_blink_set uses an illegal value to set the LED_CFG_G_LED_MODE field of the LED_CFG register. This field is only 2 bits large, so should be initialized with value that fits. Use default value from the vendor driver. Signed-off-by: Gertjan van Wingerde Acked-by: Ivo van Doorn Signed-off-by: John W. Linville --- drivers/net/wireless/rt2x00/rt2800lib.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c index 27bf887f145..9deae41cb78 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -340,7 +340,7 @@ static int rt2800_blink_set(struct led_classdev *led_cdev, rt2x00_set_field32(®, LED_CFG_OFF_PERIOD, *delay_off); rt2x00_set_field32(®, LED_CFG_SLOW_BLINK_PERIOD, 3); rt2x00_set_field32(®, LED_CFG_R_LED_MODE, 3); - rt2x00_set_field32(®, LED_CFG_G_LED_MODE, 12); + rt2x00_set_field32(®, LED_CFG_G_LED_MODE, 3); rt2x00_set_field32(®, LED_CFG_Y_LED_MODE, 3); rt2x00_set_field32(®, LED_CFG_LED_POLAR, 1); rt2800_register_write(led->rt2x00dev, LED_CFG, reg); -- cgit v1.2.3 From cf0277e714a0db302a8f80e1b85fd61c32cf00b3 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Tue, 5 Jan 2010 18:00:58 +0100 Subject: mac80211: fix skb buffering issue Since I removed the master netdev, we've been keeping internal queues only, and even before that we never told the networking stack above the virtual interfaces about congestion. This means that packets are queued in mac80211 and the upper layers never know, possibly leading to memory exhaustion and other problems. This patch makes all interfaces multiqueue and uses ndo_select_queue to put the packets into queues per AC. Additionally, when the driver stops a queue, we now stop all corresponding queues for the virtual interfaces as well. The injection case will use VO by default for non-data frames, and BE for data frames, but downgrade any data frames according to ACM. It needs to be fleshed out in the future to allow chosing the queue/AC in radiotap. Reported-by: Lennert Buytenhek Signed-off-by: Johannes Berg Cc: stable@kernel.org [2.6.32] Signed-off-by: John W. Linville --- net/mac80211/iface.c | 39 +++++++++++++++++++-- net/mac80211/rx.c | 4 ++- net/mac80211/tx.c | 5 ++- net/mac80211/util.c | 12 +++++++ net/mac80211/wme.c | 96 ++++++++++++++++++++++++++++++++++++++-------------- net/mac80211/wme.h | 8 +++-- 6 files changed, 132 insertions(+), 32 deletions(-) diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 80c16f6e2af..c261cdb359e 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -15,12 +15,14 @@ #include #include #include +#include #include "ieee80211_i.h" #include "sta_info.h" #include "debugfs_netdev.h" #include "mesh.h" #include "led.h" #include "driver-ops.h" +#include "wme.h" /** * DOC: Interface list locking @@ -644,6 +646,12 @@ static void ieee80211_teardown_sdata(struct net_device *dev) WARN_ON(flushed); } +static u16 ieee80211_netdev_select_queue(struct net_device *dev, + struct sk_buff *skb) +{ + return ieee80211_select_queue(IEEE80211_DEV_TO_SUB_IF(dev), skb); +} + static const struct net_device_ops ieee80211_dataif_ops = { .ndo_open = ieee80211_open, .ndo_stop = ieee80211_stop, @@ -652,8 +660,34 @@ static const struct net_device_ops ieee80211_dataif_ops = { .ndo_set_multicast_list = ieee80211_set_multicast_list, .ndo_change_mtu = ieee80211_change_mtu, .ndo_set_mac_address = eth_mac_addr, + .ndo_select_queue = ieee80211_netdev_select_queue, }; +static u16 ieee80211_monitor_select_queue(struct net_device *dev, + struct sk_buff *skb) +{ + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct ieee80211_local *local = sdata->local; + struct ieee80211_hdr *hdr; + struct ieee80211_radiotap_header *rtap = (void *)skb->data; + + if (local->hw.queues < 4) + return 0; + + if (skb->len < 4 || + skb->len < rtap->it_len + 2 /* frame control */) + return 0; /* doesn't matter, frame will be dropped */ + + hdr = (void *)((u8 *)skb->data + rtap->it_len); + + if (!ieee80211_is_data(hdr->frame_control)) { + skb->priority = 7; + return ieee802_1d_to_ac[skb->priority]; + } + + return ieee80211_downgrade_queue(local, skb); +} + static const struct net_device_ops ieee80211_monitorif_ops = { .ndo_open = ieee80211_open, .ndo_stop = ieee80211_stop, @@ -662,6 +696,7 @@ static const struct net_device_ops ieee80211_monitorif_ops = { .ndo_set_multicast_list = ieee80211_set_multicast_list, .ndo_change_mtu = ieee80211_change_mtu, .ndo_set_mac_address = eth_mac_addr, + .ndo_select_queue = ieee80211_monitor_select_queue, }; static void ieee80211_if_setup(struct net_device *dev) @@ -768,8 +803,8 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name, ASSERT_RTNL(); - ndev = alloc_netdev(sizeof(*sdata) + local->hw.vif_data_size, - name, ieee80211_if_setup); + ndev = alloc_netdev_mq(sizeof(*sdata) + local->hw.vif_data_size, + name, ieee80211_if_setup, local->hw.queues); if (!ndev) return -ENOMEM; dev_net_set(ndev, wiphy_net(local->hw.wiphy)); diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 9f2807aeaf5..54296999834 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -1746,7 +1746,9 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx) memset(info, 0, sizeof(*info)); info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING; info->control.vif = &rx->sdata->vif; - ieee80211_select_queue(local, fwd_skb); + skb_set_queue_mapping(skb, + ieee80211_select_queue(rx->sdata, fwd_skb)); + ieee80211_set_qos_hdr(local, skb); if (is_multicast_ether_addr(fwd_hdr->addr1)) IEEE80211_IFSTA_MESH_CTR_INC(&sdata->u.mesh, fwded_mcast); diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 27ceaefd7bc..ac210b58670 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -1512,7 +1512,7 @@ static void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, return; } - ieee80211_select_queue(local, skb); + ieee80211_set_qos_hdr(local, skb); ieee80211_tx(sdata, skb, false); rcu_read_unlock(); } @@ -2291,6 +2291,9 @@ void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) skb_set_network_header(skb, 0); skb_set_transport_header(skb, 0); + /* send all internal mgmt frames on VO */ + skb_set_queue_mapping(skb, 0); + /* * The other path calling ieee80211_xmit is from the tasklet, * and while we can handle concurrent transmissions locking diff --git a/net/mac80211/util.c b/net/mac80211/util.c index dc76267e436..3848140313f 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -269,6 +269,7 @@ static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue, enum queue_stop_reason reason) { struct ieee80211_local *local = hw_to_local(hw); + struct ieee80211_sub_if_data *sdata; if (WARN_ON(queue >= hw->queues)) return; @@ -281,6 +282,11 @@ static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue, if (!skb_queue_empty(&local->pending[queue])) tasklet_schedule(&local->tx_pending_tasklet); + + rcu_read_lock(); + list_for_each_entry_rcu(sdata, &local->interfaces, list) + netif_tx_wake_queue(netdev_get_tx_queue(sdata->dev, queue)); + rcu_read_unlock(); } void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue, @@ -305,11 +311,17 @@ static void __ieee80211_stop_queue(struct ieee80211_hw *hw, int queue, enum queue_stop_reason reason) { struct ieee80211_local *local = hw_to_local(hw); + struct ieee80211_sub_if_data *sdata; if (WARN_ON(queue >= hw->queues)) return; __set_bit(reason, &local->queue_stop_reasons[queue]); + + rcu_read_lock(); + list_for_each_entry_rcu(sdata, &local->interfaces, list) + netif_tx_stop_queue(netdev_get_tx_queue(sdata->dev, queue)); + rcu_read_unlock(); } void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue, diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c index b19b7696f3a..34e6d02da77 100644 --- a/net/mac80211/wme.c +++ b/net/mac80211/wme.c @@ -44,22 +44,69 @@ static int wme_downgrade_ac(struct sk_buff *skb) } -/* Indicate which queue to use. */ -static u16 classify80211(struct ieee80211_local *local, struct sk_buff *skb) +/* Indicate which queue to use. */ +u16 ieee80211_select_queue(struct ieee80211_sub_if_data *sdata, + struct sk_buff *skb) { - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; + struct ieee80211_local *local = sdata->local; + struct sta_info *sta = NULL; + u32 sta_flags = 0; + const u8 *ra = NULL; + bool qos = false; - if (!ieee80211_is_data(hdr->frame_control)) { - /* management frames go on AC_VO queue, but are sent - * without QoS control fields */ - return 0; + if (local->hw.queues < 4 || skb->len < 6) { + skb->priority = 0; /* required for correct WPA/11i MIC */ + return min_t(u16, local->hw.queues - 1, + ieee802_1d_to_ac[skb->priority]); + } + + rcu_read_lock(); + switch (sdata->vif.type) { + case NL80211_IFTYPE_AP_VLAN: + rcu_read_lock(); + sta = rcu_dereference(sdata->u.vlan.sta); + if (sta) + sta_flags = get_sta_flags(sta); + rcu_read_unlock(); + if (sta) + break; + case NL80211_IFTYPE_AP: + ra = skb->data; + break; + case NL80211_IFTYPE_WDS: + ra = sdata->u.wds.remote_addr; + break; +#ifdef CONFIG_MAC80211_MESH + case NL80211_IFTYPE_MESH_POINT: + /* + * XXX: This is clearly broken ... but already was before, + * because ieee80211_fill_mesh_addresses() would clear A1 + * except for multicast addresses. + */ + break; +#endif + case NL80211_IFTYPE_STATION: + ra = sdata->u.mgd.bssid; + break; + case NL80211_IFTYPE_ADHOC: + ra = skb->data; + break; + default: + break; } - if (0 /* injected */) { - /* use AC from radiotap */ + if (!sta && ra && !is_multicast_ether_addr(ra)) { + sta = sta_info_get(sdata, ra); + if (sta) + sta_flags = get_sta_flags(sta); } - if (!ieee80211_is_data_qos(hdr->frame_control)) { + if (sta_flags & WLAN_STA_WME) + qos = true; + + rcu_read_unlock(); + + if (!qos) { skb->priority = 0; /* required for correct WPA/11i MIC */ return ieee802_1d_to_ac[skb->priority]; } @@ -68,6 +115,12 @@ static u16 classify80211(struct ieee80211_local *local, struct sk_buff *skb) * data frame has */ skb->priority = cfg80211_classify8021d(skb); + return ieee80211_downgrade_queue(local, skb); +} + +u16 ieee80211_downgrade_queue(struct ieee80211_local *local, + struct sk_buff *skb) +{ /* in case we are a client verify acm is not set for this ac */ while (unlikely(local->wmm_acm & BIT(skb->priority))) { if (wme_downgrade_ac(skb)) { @@ -85,24 +138,17 @@ static u16 classify80211(struct ieee80211_local *local, struct sk_buff *skb) return ieee802_1d_to_ac[skb->priority]; } -void ieee80211_select_queue(struct ieee80211_local *local, struct sk_buff *skb) +void ieee80211_set_qos_hdr(struct ieee80211_local *local, struct sk_buff *skb) { - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - u16 queue; - u8 tid; - - queue = classify80211(local, skb); - if (unlikely(queue >= local->hw.queues)) - queue = local->hw.queues - 1; - - /* - * Now we know the 1d priority, fill in the QoS header if - * there is one (and we haven't done this before). - */ + struct ieee80211_hdr *hdr = (void *)skb->data; + + /* Fill in the QoS header if there is one. */ if (ieee80211_is_data_qos(hdr->frame_control)) { u8 *p = ieee80211_get_qos_ctl(hdr); - u8 ack_policy = 0; + u8 ack_policy = 0, tid; + tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK; + if (unlikely(local->wifi_wme_noack_test)) ack_policy |= QOS_CONTROL_ACK_POLICY_NOACK << QOS_CONTROL_ACK_POLICY_SHIFT; @@ -110,6 +156,4 @@ void ieee80211_select_queue(struct ieee80211_local *local, struct sk_buff *skb) *p++ = ack_policy | tid; *p = 0; } - - skb_set_queue_mapping(skb, queue); } diff --git a/net/mac80211/wme.h b/net/mac80211/wme.h index d4fd87ca511..6053b1c9fee 100644 --- a/net/mac80211/wme.h +++ b/net/mac80211/wme.h @@ -20,7 +20,11 @@ extern const int ieee802_1d_to_ac[8]; -void ieee80211_select_queue(struct ieee80211_local *local, - struct sk_buff *skb); +u16 ieee80211_select_queue(struct ieee80211_sub_if_data *sdata, + struct sk_buff *skb); +void ieee80211_set_qos_hdr(struct ieee80211_local *local, struct sk_buff *skb); +u16 ieee80211_downgrade_queue(struct ieee80211_local *local, + struct sk_buff *skb); + #endif /* _WME_H */ -- cgit v1.2.3 From 7a4a77b7771164d61ce702a588067d1e1d66db7c Mon Sep 17 00:00:00 2001 From: Gertjan van Wingerde Date: Wed, 30 Dec 2009 11:36:30 +0100 Subject: rt2x00: Properly request tx headroom for alignment operations. Current rt2x00 drivers may result in a "ieee80211_tx_status: headroom too small" error message when a frame needs to be properly aligned before transmitting it. This is because the space needed to ensure proper alignment isn't requested from mac80211. Fix this by adding sufficient amount of alignment space to the amount of headroom requested for TX frames. Reported-by: David Ellingsworth Signed-off-by: Gertjan van Wingerde Acked-by: Ivo van Doorn Signed-off-by: John W. Linville --- drivers/net/wireless/rt2x00/rt2x00.h | 6 ++++++ drivers/net/wireless/rt2x00/rt2x00dev.c | 12 +++++++++++- 2 files changed, 17 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h index 4d841c07c97..dcfc8c25d1a 100644 --- a/drivers/net/wireless/rt2x00/rt2x00.h +++ b/drivers/net/wireless/rt2x00/rt2x00.h @@ -112,6 +112,12 @@ #define ALIGN_SIZE(__skb, __header) \ ( ((unsigned long)((__skb)->data + (__header))) & 3 ) +/* + * Constants for extra TX headroom for alignment purposes. + */ +#define RT2X00_ALIGN_SIZE 4 /* Only whole frame needs alignment */ +#define RT2X00_L2PAD_SIZE 8 /* Both header & payload need alignment */ + /* * Standard timing and size defines. * These values should follow the ieee80211 specifications. diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c index 06c43ca39bf..265e66dba55 100644 --- a/drivers/net/wireless/rt2x00/rt2x00dev.c +++ b/drivers/net/wireless/rt2x00/rt2x00dev.c @@ -686,7 +686,17 @@ static int rt2x00lib_probe_hw(struct rt2x00_dev *rt2x00dev) /* * Initialize extra TX headroom required. */ - rt2x00dev->hw->extra_tx_headroom = rt2x00dev->ops->extra_tx_headroom; + rt2x00dev->hw->extra_tx_headroom = + max_t(unsigned int, IEEE80211_TX_STATUS_HEADROOM, + rt2x00dev->ops->extra_tx_headroom); + + /* + * Take TX headroom required for alignment into account. + */ + if (test_bit(DRIVER_REQUIRE_L2PAD, &rt2x00dev->flags)) + rt2x00dev->hw->extra_tx_headroom += RT2X00_L2PAD_SIZE; + else if (test_bit(DRIVER_REQUIRE_DMA, &rt2x00dev->flags)) + rt2x00dev->hw->extra_tx_headroom += RT2X00_ALIGN_SIZE; /* * Register HW. -- cgit v1.2.3 From debde9ea24d5512400456b1b64df361e422f078d Mon Sep 17 00:00:00 2001 From: "John W. Linville" Date: Wed, 6 Jan 2010 15:35:49 -0500 Subject: mac80211: fix-up build breakage in 2.6.33 "mac80211: fix skb buffering issue" is based on what will become 2.6.34, so it includes an incompatible usage of sta_info_get. This patch will need to be effectively reverted when merging for 2.6.34. Signed-off-by: John W. Linville --- net/mac80211/wme.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c index 34e6d02da77..79d887dae73 100644 --- a/net/mac80211/wme.c +++ b/net/mac80211/wme.c @@ -96,7 +96,7 @@ u16 ieee80211_select_queue(struct ieee80211_sub_if_data *sdata, } if (!sta && ra && !is_multicast_ether_addr(ra)) { - sta = sta_info_get(sdata, ra); + sta = sta_info_get(local, ra); if (sta) sta_flags = get_sta_flags(sta); } -- cgit v1.2.3 From 8a5b33f55452c226aa0e47d737e541985ff10e16 Mon Sep 17 00:00:00 2001 From: "John W. Linville" Date: Wed, 6 Jan 2010 15:39:39 -0500 Subject: Revert "mac80211: replace netif_tx_{start,stop,wake}_all_queues" This reverts commit 53623f1a09c7a7d23b74f0f7d93dba0ebde1006b. This was inadvertantly missed in "mac80211: fix skb buffering issue", and is required with that patch to restore proper queue operation. Signed-off-by: John W. Linville --- net/mac80211/iface.c | 4 ++-- net/mac80211/mlme.c | 4 ++-- net/mac80211/scan.c | 10 +++++----- 3 files changed, 9 insertions(+), 9 deletions(-) diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index c261cdb359e..ff762ed34f1 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -316,7 +316,7 @@ static int ieee80211_open(struct net_device *dev) if (sdata->vif.type == NL80211_IFTYPE_STATION) ieee80211_queue_work(&local->hw, &sdata->u.mgd.work); - netif_start_queue(dev); + netif_tx_start_all_queues(dev); return 0; err_del_interface: @@ -345,7 +345,7 @@ static int ieee80211_stop(struct net_device *dev) /* * Stop TX on this interface first. */ - netif_stop_queue(dev); + netif_tx_stop_all_queues(dev); /* * Now delete all active aggregation sessions. diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index c79e59f82fd..3e1eab963b8 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -942,7 +942,7 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, ieee80211_recalc_ps(local, -1); mutex_unlock(&local->iflist_mtx); - netif_start_queue(sdata->dev); + netif_tx_start_all_queues(sdata->dev); netif_carrier_on(sdata->dev); } @@ -1074,7 +1074,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, * time -- we don't want the scan code to enable queues. */ - netif_stop_queue(sdata->dev); + netif_tx_stop_all_queues(sdata->dev); netif_carrier_off(sdata->dev); rcu_read_lock(); diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index f1a4c716030..f934c9620b7 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -353,10 +353,10 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted) if (sdata->vif.type == NL80211_IFTYPE_STATION) { if (sdata->u.mgd.associated) { ieee80211_scan_ps_disable(sdata); - netif_wake_queue(sdata->dev); + netif_tx_wake_all_queues(sdata->dev); } } else - netif_wake_queue(sdata->dev); + netif_tx_wake_all_queues(sdata->dev); /* re-enable beaconing */ if (sdata->vif.type == NL80211_IFTYPE_AP || @@ -411,7 +411,7 @@ static int ieee80211_start_sw_scan(struct ieee80211_local *local) * are handled in the scan state machine */ if (sdata->vif.type != NL80211_IFTYPE_STATION) - netif_stop_queue(sdata->dev); + netif_tx_stop_all_queues(sdata->dev); } mutex_unlock(&local->iflist_mtx); @@ -575,7 +575,7 @@ static void ieee80211_scan_state_leave_oper_channel(struct ieee80211_local *loca continue; if (sdata->vif.type == NL80211_IFTYPE_STATION) { - netif_stop_queue(sdata->dev); + netif_tx_stop_all_queues(sdata->dev); if (sdata->u.mgd.associated) ieee80211_scan_ps_enable(sdata); } @@ -610,7 +610,7 @@ static void ieee80211_scan_state_enter_oper_channel(struct ieee80211_local *loca if (sdata->vif.type == NL80211_IFTYPE_STATION) { if (sdata->u.mgd.associated) ieee80211_scan_ps_disable(sdata); - netif_wake_queue(sdata->dev); + netif_tx_wake_all_queues(sdata->dev); } } mutex_unlock(&local->iflist_mtx); -- cgit v1.2.3 From 045cfb71a3901005bf6dcedae98cecb3360a0bfc Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Thu, 7 Jan 2010 15:01:42 +0100 Subject: mac80211: fix queue selection for packets injected via monitor interface Commit 'mac80211: fix skb buffering issue' added an ->ndo_select_queue() for monitor interfaces which can end up dereferencing ieee802_1d_to_ac[] beyond the end of the array for injected data packets (as skb->priority isn't guaranteed to be zero or within [0:7]), which then triggers the WARN_ON in net/core/dev.c:dev_cap_txqueue(). Fix this by always setting the priority to zero on injected data frames. Signed-off-by: Lennert Buytenhek Cc: stable@kernel.org Signed-off-by: John W. Linville --- net/mac80211/iface.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index ff762ed34f1..44188ef80a6 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -685,6 +685,7 @@ static u16 ieee80211_monitor_select_queue(struct net_device *dev, return ieee802_1d_to_ac[skb->priority]; } + skb->priority = 0; return ieee80211_downgrade_queue(local, skb); } -- cgit v1.2.3 From d79074488083ec0d7ecd15352192dc1631f25643 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Thu, 7 Jan 2010 20:23:53 +0100 Subject: mac80211: add missing sanity checks for action frames Various missing sanity checks caused rejected action frames to be interpreted as channel switch announcements, which can cause a client mode interface to switch away from its operating channel, thereby losing connectivity. This patch ensures that only spectrum management action frames are processed by the CSA handling function and prevents rejected action frames from getting processed by the MLME code. Signed-off-by: Felix Fietkau Cc: stable@kernel.org Signed-off-by: John W. Linville --- net/mac80211/mlme.c | 4 +++- net/mac80211/rx.c | 4 ++++ 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 3e1eab963b8..05a18f43e1b 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -1963,7 +1963,9 @@ static void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, rma = ieee80211_rx_mgmt_disassoc(sdata, mgmt, skb->len); break; case IEEE80211_STYPE_ACTION: - /* XXX: differentiate, can only happen for CSA now! */ + if (mgmt->u.action.category != WLAN_CATEGORY_SPECTRUM_MGMT) + break; + ieee80211_sta_process_chanswitch(sdata, &mgmt->u.action.u.chan_switch.sw_elem, ifmgd->associated); diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 54296999834..82a30c1bf3a 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -2015,6 +2015,10 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx) } break; default: + /* do not process rejected action frames */ + if (mgmt->u.action.category & 0x80) + return RX_DROP_MONITOR; + return RX_CONTINUE; } -- cgit v1.2.3 From b49bb574e44226b332c28439999d196ddec2f643 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Fri, 8 Jan 2010 19:00:00 +0100 Subject: mac80211: fix endian error I forgot to convert the radiotap length to CPU endian, which sparse found thankfully. Signed-off-by: Johannes Berg Cc: stable@kernel.org Signed-off-by: John W. Linville --- net/mac80211/iface.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 44188ef80a6..d62ec0803be 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -675,10 +675,10 @@ static u16 ieee80211_monitor_select_queue(struct net_device *dev, return 0; if (skb->len < 4 || - skb->len < rtap->it_len + 2 /* frame control */) + skb->len < le16_to_cpu(rtap->it_len) + 2 /* frame control */) return 0; /* doesn't matter, frame will be dropped */ - hdr = (void *)((u8 *)skb->data + rtap->it_len); + hdr = (void *)((u8 *)skb->data + le16_to_cpu(rtap->it_len)); if (!ieee80211_is_data(hdr->frame_control)) { skb->priority = 7; -- cgit v1.2.3 From c8106d7625a58ee4387cb2efe3e82320ad44b467 Mon Sep 17 00:00:00 2001 From: Zhu Yi Date: Fri, 8 Jan 2010 10:04:30 -0800 Subject: iwlwifi: fix iwl_queue_used bug when read_ptr == write_ptr When txq read_ptr equals to write_ptr, iwl_queue_used should always return false. Because there is no used TFD in this case. This is a complementary fix to the fix already included in commit "iwl3945: fix panic in iwl3945 driver". Both fixes are needed to address the panic below. This problem was discussed on linux-wireless in http://thread.gmane.org/gmane.linux.kernel.wireless.general/43568 <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/iwl-dev.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h index 165d1f6e2dd..3822cf53e36 100644 --- a/drivers/net/wireless/iwlwifi/iwl-dev.h +++ b/drivers/net/wireless/iwlwifi/iwl-dev.h @@ -711,7 +711,7 @@ extern void iwl_txq_ctx_stop(struct iwl_priv *priv); extern int iwl_queue_space(const struct iwl_queue *q); static inline int iwl_queue_used(const struct iwl_queue *q, int i) { - return q->write_ptr > q->read_ptr ? + return q->write_ptr >= q->read_ptr ? (i >= q->read_ptr && i < q->write_ptr) : !(i < q->read_ptr && i >= q->write_ptr); } -- cgit v1.2.3 From c91c3efca5297bd67324654524ced38162f2e579 Mon Sep 17 00:00:00 2001 From: Abhijeet Kolekar Date: Fri, 8 Jan 2010 10:04:31 -0800 Subject: iwlwifi: disable tx on beacon update notification On beacon change update notification from mac we are not disabling the tx in adhoc mode. Mac sends BSS_CHANGED_BEACON_ENABLED when station leaves IBSS. Driver should indicate uCode to not to send anything on receiving this notification. Functionality to indicate uCode is duplicated across two notifications so created a common function called iwl_set_no_assoc. Fix the issue at http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2133. Signed-off-by: Abhijeet Kolekar Tested-by: Johannes Berg Signed-off-by: Reinette Chatre Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-core.c | 45 ++++++++++++++++++--------------- 1 file changed, 25 insertions(+), 20 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index 574d3665870..5461f105bd2 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -2344,6 +2344,21 @@ static void iwl_ht_conf(struct iwl_priv *priv, IWL_DEBUG_MAC80211(priv, "leave\n"); } +static inline void iwl_set_no_assoc(struct iwl_priv *priv) +{ + priv->assoc_id = 0; + iwl_led_disassociate(priv); + /* + * inform the ucode that there is no longer an + * association and that no more packets should be + * sent + */ + priv->staging_rxon.filter_flags &= + ~RXON_FILTER_ASSOC_MSK; + priv->staging_rxon.assoc_id = 0; + iwlcore_commit_rxon(priv); +} + #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6) void iwl_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif, @@ -2475,20 +2490,8 @@ void iwl_bss_info_changed(struct ieee80211_hw *hw, IWL_DELAY_NEXT_SCAN_AFTER_ASSOC; if (!iwl_is_rfkill(priv)) priv->cfg->ops->lib->post_associate(priv); - } else { - priv->assoc_id = 0; - iwl_led_disassociate(priv); - - /* - * inform the ucode that there is no longer an - * association and that no more packets should be - * send - */ - priv->staging_rxon.filter_flags &= - ~RXON_FILTER_ASSOC_MSK; - priv->staging_rxon.assoc_id = 0; - iwlcore_commit_rxon(priv); - } + } else + iwl_set_no_assoc(priv); } if (changes && iwl_is_associated(priv) && priv->assoc_id) { @@ -2503,12 +2506,14 @@ void iwl_bss_info_changed(struct ieee80211_hw *hw, } } - if ((changes & BSS_CHANGED_BEACON_ENABLED) && - vif->bss_conf.enable_beacon) { - memcpy(priv->staging_rxon.bssid_addr, - bss_conf->bssid, ETH_ALEN); - memcpy(priv->bssid, bss_conf->bssid, ETH_ALEN); - iwlcore_config_ap(priv); + if (changes & BSS_CHANGED_BEACON_ENABLED) { + if (vif->bss_conf.enable_beacon) { + memcpy(priv->staging_rxon.bssid_addr, + bss_conf->bssid, ETH_ALEN); + memcpy(priv->bssid, bss_conf->bssid, ETH_ALEN); + iwlcore_config_ap(priv); + } else + iwl_set_no_assoc(priv); } mutex_unlock(&priv->mutex); -- cgit v1.2.3 From 39825f4dc9f4e409e8ea43ef4df04a924699ad1f Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sat, 9 Jan 2010 11:41:48 +0300 Subject: iwlwifi: silence buffer overflow warning Smatch (and presumably other static checkers) complain that MAX_TID_COUNT is past the end of the array. In the resulting discussion, Zhu Yi pointed out that this value is not used in real life and the assignment was only there to silence a gcc warning. If there were a bug in the surrounding code and the value were used, the WARN_ON(!qc) would print a warning before the crash. Signed-off-by: Dan Carpenter Acked-by: Zhu Yi Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-4965.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c index 761aab127e7..9b4b8b5c757 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965.c +++ b/drivers/net/wireless/iwlwifi/iwl-4965.c @@ -1961,7 +1961,7 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv, struct ieee80211_tx_info *info; struct iwl4965_tx_resp *tx_resp = (void *)&pkt->u.raw[0]; u32 status = le32_to_cpu(tx_resp->u.status); - int tid = MAX_TID_COUNT - 1; + int uninitialized_var(tid); int sta_id; int freed; u8 *qc = NULL; -- cgit v1.2.3 From 193e70ef65a6c33f2935ce1f4adeb08ecb9202cf Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Mon, 11 Jan 2010 06:47:00 +0100 Subject: mac80211: fix queue selection for data frames on monitor interfaces When ieee80211_monitor_select_queue encounters data frames, it selects the WMM AC based on skb->priority and assumes that skb->priority contains a valid 802.1d tag. However this assumption is incorrect, since ieee80211_select_queue has not been called at this point. If skb->priority > 7, an array overrun occurs, which could lead to invalid values, resulting in crashes in the tx path. Fix this by setting skb->priority based on the 802.11 header for QoS frames and using the default AC for all non-QoS frames. Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- net/mac80211/iface.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index d62ec0803be..32abae3ce32 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -670,6 +670,7 @@ static u16 ieee80211_monitor_select_queue(struct net_device *dev, struct ieee80211_local *local = sdata->local; struct ieee80211_hdr *hdr; struct ieee80211_radiotap_header *rtap = (void *)skb->data; + u8 *p; if (local->hw.queues < 4) return 0; @@ -680,12 +681,14 @@ static u16 ieee80211_monitor_select_queue(struct net_device *dev, hdr = (void *)((u8 *)skb->data + le16_to_cpu(rtap->it_len)); - if (!ieee80211_is_data(hdr->frame_control)) { + if (!ieee80211_is_data_qos(hdr->frame_control)) { skb->priority = 7; return ieee802_1d_to_ac[skb->priority]; } - skb->priority = 0; + p = ieee80211_get_qos_ctl(hdr); + skb->priority = *p & IEEE80211_QOS_CTL_TAG1D_MASK; + return ieee80211_downgrade_queue(local, skb); } -- cgit v1.2.3 From 8c5d9808e95739c9001b852464fd58fd0f583280 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Mon, 11 Jan 2010 16:14:57 +0100 Subject: cfg80211: fix refcount imbalance when wext is disabled When CONFIG_CFG80211_WEXT is not set, there is a refcount imbalance with rdev->opencount, fix that by moving it out of the ifdef. Reported-by: Alan Stern Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- net/wireless/core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/wireless/core.c b/net/wireless/core.c index c2a2c563d21..92b81244248 100644 --- a/net/wireless/core.c +++ b/net/wireless/core.c @@ -745,9 +745,9 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb, mutex_unlock(&rdev->devlist_mtx); dev_put(dev); } -#ifdef CONFIG_CFG80211_WEXT cfg80211_lock_rdev(rdev); mutex_lock(&rdev->devlist_mtx); +#ifdef CONFIG_CFG80211_WEXT wdev_lock(wdev); switch (wdev->iftype) { case NL80211_IFTYPE_ADHOC: @@ -760,10 +760,10 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb, break; } wdev_unlock(wdev); +#endif rdev->opencount++; mutex_unlock(&rdev->devlist_mtx); cfg80211_unlock_rdev(rdev); -#endif break; case NETDEV_UNREGISTER: /* -- cgit v1.2.3 From 1a647bd213d85c88507967104aea79b2649e6a6e Mon Sep 17 00:00:00 2001 From: Alexander Duyck Date: Wed, 13 Jan 2010 01:49:13 +0000 Subject: ixgbe: Do not attempt to perform interrupts in netpoll when down This patch resolves issues seen when running netconsole and rebooting via reboot -f. The issue was due to the fact that we were attempting to perform interrupt actions when the q_vectors and rings had already been freed via the ixgbe_shutdown routines. Signed-off-by: Alexander Duyck Acked-by: Mallikarjuna R Chilakala Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ixgbe/ixgbe_main.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index 2ad754c864c..385976709e7 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -5576,6 +5576,10 @@ static void ixgbe_netpoll(struct net_device *netdev) struct ixgbe_adapter *adapter = netdev_priv(netdev); int i; + /* if interface is down do nothing */ + if (test_bit(__IXGBE_DOWN, &adapter->state)) + return; + adapter->flags |= IXGBE_FLAG_IN_NETPOLL; if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { int num_q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; -- cgit v1.2.3 From 8c47eaa76600cebc4869a42abb4568925ade6c47 Mon Sep 17 00:00:00 2001 From: Shannon Nelson Date: Wed, 13 Jan 2010 01:49:34 +0000 Subject: ixgbe: update copyright dates Signed-off-by: Shannon Nelson Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ixgbe/Makefile | 2 +- drivers/net/ixgbe/ixgbe.h | 2 +- drivers/net/ixgbe/ixgbe_82598.c | 2 +- drivers/net/ixgbe/ixgbe_82599.c | 2 +- drivers/net/ixgbe/ixgbe_common.c | 2 +- drivers/net/ixgbe/ixgbe_common.h | 2 +- drivers/net/ixgbe/ixgbe_dcb.c | 2 +- drivers/net/ixgbe/ixgbe_dcb.h | 2 +- drivers/net/ixgbe/ixgbe_dcb_82598.c | 2 +- drivers/net/ixgbe/ixgbe_dcb_82598.h | 2 +- drivers/net/ixgbe/ixgbe_dcb_82599.c | 2 +- drivers/net/ixgbe/ixgbe_dcb_82599.h | 2 +- drivers/net/ixgbe/ixgbe_dcb_nl.c | 2 +- drivers/net/ixgbe/ixgbe_ethtool.c | 2 +- drivers/net/ixgbe/ixgbe_fcoe.c | 2 +- drivers/net/ixgbe/ixgbe_fcoe.h | 2 +- drivers/net/ixgbe/ixgbe_main.c | 4 ++-- drivers/net/ixgbe/ixgbe_phy.c | 2 +- drivers/net/ixgbe/ixgbe_phy.h | 2 +- drivers/net/ixgbe/ixgbe_type.h | 2 +- 20 files changed, 21 insertions(+), 21 deletions(-) diff --git a/drivers/net/ixgbe/Makefile b/drivers/net/ixgbe/Makefile index 21b41f42b61..bfef0ebcba9 100644 --- a/drivers/net/ixgbe/Makefile +++ b/drivers/net/ixgbe/Makefile @@ -1,7 +1,7 @@ ################################################################################ # # Intel 10 Gigabit PCI Express Linux driver -# Copyright(c) 1999 - 2009 Intel Corporation. +# Copyright(c) 1999 - 2010 Intel Corporation. # # This program is free software; you can redistribute it and/or modify it # under the terms and conditions of the GNU General Public License, diff --git a/drivers/net/ixgbe/ixgbe.h b/drivers/net/ixgbe/ixgbe.h index 8da8eb53508..303e7bd39b6 100644 --- a/drivers/net/ixgbe/ixgbe.h +++ b/drivers/net/ixgbe/ixgbe.h @@ -1,7 +1,7 @@ /******************************************************************************* Intel 10 Gigabit PCI Express Linux driver - Copyright(c) 1999 - 2009 Intel Corporation. + Copyright(c) 1999 - 2010 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, diff --git a/drivers/net/ixgbe/ixgbe_82598.c b/drivers/net/ixgbe/ixgbe_82598.c index 204177d78ce..3103f416531 100644 --- a/drivers/net/ixgbe/ixgbe_82598.c +++ b/drivers/net/ixgbe/ixgbe_82598.c @@ -1,7 +1,7 @@ /******************************************************************************* Intel 10 Gigabit PCI Express Linux driver - Copyright(c) 1999 - 2009 Intel Corporation. + Copyright(c) 1999 - 2010 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, diff --git a/drivers/net/ixgbe/ixgbe_82599.c b/drivers/net/ixgbe/ixgbe_82599.c index 538340527aa..b49bd6b9feb 100644 --- a/drivers/net/ixgbe/ixgbe_82599.c +++ b/drivers/net/ixgbe/ixgbe_82599.c @@ -1,7 +1,7 @@ /******************************************************************************* Intel 10 Gigabit PCI Express Linux driver - Copyright(c) 1999 - 2009 Intel Corporation. + Copyright(c) 1999 - 2010 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, diff --git a/drivers/net/ixgbe/ixgbe_common.c b/drivers/net/ixgbe/ixgbe_common.c index 688b8ca5da3..21f158f79dd 100644 --- a/drivers/net/ixgbe/ixgbe_common.c +++ b/drivers/net/ixgbe/ixgbe_common.c @@ -1,7 +1,7 @@ /******************************************************************************* Intel 10 Gigabit PCI Express Linux driver - Copyright(c) 1999 - 2009 Intel Corporation. + Copyright(c) 1999 - 2010 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, diff --git a/drivers/net/ixgbe/ixgbe_common.h b/drivers/net/ixgbe/ixgbe_common.h index 27f3214bed2..dfff0ffaa50 100644 --- a/drivers/net/ixgbe/ixgbe_common.h +++ b/drivers/net/ixgbe/ixgbe_common.h @@ -1,7 +1,7 @@ /******************************************************************************* Intel 10 Gigabit PCI Express Linux driver - Copyright(c) 1999 - 2009 Intel Corporation. + Copyright(c) 1999 - 2010 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, diff --git a/drivers/net/ixgbe/ixgbe_dcb.c b/drivers/net/ixgbe/ixgbe_dcb.c index a1562287342..9aea4f04bbd 100644 --- a/drivers/net/ixgbe/ixgbe_dcb.c +++ b/drivers/net/ixgbe/ixgbe_dcb.c @@ -1,7 +1,7 @@ /******************************************************************************* Intel 10 Gigabit PCI Express Linux driver - Copyright(c) 1999 - 2009 Intel Corporation. + Copyright(c) 1999 - 2010 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, diff --git a/drivers/net/ixgbe/ixgbe_dcb.h b/drivers/net/ixgbe/ixgbe_dcb.h index 64a9fa15c05..5caafd4afbc 100644 --- a/drivers/net/ixgbe/ixgbe_dcb.h +++ b/drivers/net/ixgbe/ixgbe_dcb.h @@ -1,7 +1,7 @@ /******************************************************************************* Intel 10 Gigabit PCI Express Linux driver - Copyright(c) 1999 - 2009 Intel Corporation. + Copyright(c) 1999 - 2010 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, diff --git a/drivers/net/ixgbe/ixgbe_dcb_82598.c b/drivers/net/ixgbe/ixgbe_dcb_82598.c index f30263898eb..f0e9279d466 100644 --- a/drivers/net/ixgbe/ixgbe_dcb_82598.c +++ b/drivers/net/ixgbe/ixgbe_dcb_82598.c @@ -1,7 +1,7 @@ /******************************************************************************* Intel 10 Gigabit PCI Express Linux driver - Copyright(c) 1999 - 2009 Intel Corporation. + Copyright(c) 1999 - 2010 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, diff --git a/drivers/net/ixgbe/ixgbe_dcb_82598.h b/drivers/net/ixgbe/ixgbe_dcb_82598.h index ebbe53c352a..cc728fa092e 100644 --- a/drivers/net/ixgbe/ixgbe_dcb_82598.h +++ b/drivers/net/ixgbe/ixgbe_dcb_82598.h @@ -1,7 +1,7 @@ /******************************************************************************* Intel 10 Gigabit PCI Express Linux driver - Copyright(c) 1999 - 2009 Intel Corporation. + Copyright(c) 1999 - 2010 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, diff --git a/drivers/net/ixgbe/ixgbe_dcb_82599.c b/drivers/net/ixgbe/ixgbe_dcb_82599.c index ec8a252636d..4f7a26ab411 100644 --- a/drivers/net/ixgbe/ixgbe_dcb_82599.c +++ b/drivers/net/ixgbe/ixgbe_dcb_82599.c @@ -1,7 +1,7 @@ /******************************************************************************* Intel 10 Gigabit PCI Express Linux driver - Copyright(c) 1999 - 2009 Intel Corporation. + Copyright(c) 1999 - 2010 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, diff --git a/drivers/net/ixgbe/ixgbe_dcb_82599.h b/drivers/net/ixgbe/ixgbe_dcb_82599.h index 9e5e2827e4a..0f3f791e1e1 100644 --- a/drivers/net/ixgbe/ixgbe_dcb_82599.h +++ b/drivers/net/ixgbe/ixgbe_dcb_82599.h @@ -1,7 +1,7 @@ /******************************************************************************* Intel 10 Gigabit PCI Express Linux driver - Copyright(c) 1999 - 2009 Intel Corporation. + Copyright(c) 1999 - 2010 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, diff --git a/drivers/net/ixgbe/ixgbe_dcb_nl.c b/drivers/net/ixgbe/ixgbe_dcb_nl.c index 3c7a79a7d7c..56f37f66b69 100644 --- a/drivers/net/ixgbe/ixgbe_dcb_nl.c +++ b/drivers/net/ixgbe/ixgbe_dcb_nl.c @@ -1,7 +1,7 @@ /******************************************************************************* Intel 10 Gigabit PCI Express Linux driver - Copyright(c) 1999 - 2009 Intel Corporation. + Copyright(c) 1999 - 2010 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, diff --git a/drivers/net/ixgbe/ixgbe_ethtool.c b/drivers/net/ixgbe/ixgbe_ethtool.c index 0bd49d3b9f6..d77961fc75f 100644 --- a/drivers/net/ixgbe/ixgbe_ethtool.c +++ b/drivers/net/ixgbe/ixgbe_ethtool.c @@ -1,7 +1,7 @@ /******************************************************************************* Intel 10 Gigabit PCI Express Linux driver - Copyright(c) 1999 - 2009 Intel Corporation. + Copyright(c) 1999 - 2010 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, diff --git a/drivers/net/ixgbe/ixgbe_fcoe.c b/drivers/net/ixgbe/ixgbe_fcoe.c index da32a108a7b..e9a20c88c15 100644 --- a/drivers/net/ixgbe/ixgbe_fcoe.c +++ b/drivers/net/ixgbe/ixgbe_fcoe.c @@ -1,7 +1,7 @@ /******************************************************************************* Intel 10 Gigabit PCI Express Linux driver - Copyright(c) 1999 - 2009 Intel Corporation. + Copyright(c) 1999 - 2010 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, diff --git a/drivers/net/ixgbe/ixgbe_fcoe.h b/drivers/net/ixgbe/ixgbe_fcoe.h index de8ff53187d..abf4b2b3f25 100644 --- a/drivers/net/ixgbe/ixgbe_fcoe.h +++ b/drivers/net/ixgbe/ixgbe_fcoe.h @@ -1,7 +1,7 @@ /******************************************************************************* Intel 10 Gigabit PCI Express Linux driver - Copyright(c) 1999 - 2009 Intel Corporation. + Copyright(c) 1999 - 2010 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index 385976709e7..9c9202f40b1 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -1,7 +1,7 @@ /******************************************************************************* Intel 10 Gigabit PCI Express Linux driver - Copyright(c) 1999 - 2009 Intel Corporation. + Copyright(c) 1999 - 2010 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, @@ -52,7 +52,7 @@ static const char ixgbe_driver_string[] = #define DRV_VERSION "2.0.44-k2" const char ixgbe_driver_version[] = DRV_VERSION; -static char ixgbe_copyright[] = "Copyright (c) 1999-2009 Intel Corporation."; +static char ixgbe_copyright[] = "Copyright (c) 1999-2010 Intel Corporation."; static const struct ixgbe_info *ixgbe_info_tbl[] = { [board_82598] = &ixgbe_82598_info, diff --git a/drivers/net/ixgbe/ixgbe_phy.c b/drivers/net/ixgbe/ixgbe_phy.c index 9ecad17522c..1c1efd38695 100644 --- a/drivers/net/ixgbe/ixgbe_phy.c +++ b/drivers/net/ixgbe/ixgbe_phy.c @@ -1,7 +1,7 @@ /******************************************************************************* Intel 10 Gigabit PCI Express Linux driver - Copyright(c) 1999 - 2009 Intel Corporation. + Copyright(c) 1999 - 2010 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, diff --git a/drivers/net/ixgbe/ixgbe_phy.h b/drivers/net/ixgbe/ixgbe_phy.h index 9b700f5bf1e..9cf5f3b4cc5 100644 --- a/drivers/net/ixgbe/ixgbe_phy.h +++ b/drivers/net/ixgbe/ixgbe_phy.h @@ -1,7 +1,7 @@ /******************************************************************************* Intel 10 Gigabit PCI Express Linux driver - Copyright(c) 1999 - 2009 Intel Corporation. + Copyright(c) 1999 - 2010 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, diff --git a/drivers/net/ixgbe/ixgbe_type.h b/drivers/net/ixgbe/ixgbe_type.h index 84650c6ebe0..9eafddfa1b9 100644 --- a/drivers/net/ixgbe/ixgbe_type.h +++ b/drivers/net/ixgbe/ixgbe_type.h @@ -1,7 +1,7 @@ /******************************************************************************* Intel 10 Gigabit PCI Express Linux driver - Copyright(c) 1999 - 2009 Intel Corporation. + Copyright(c) 1999 - 2010 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, -- cgit v1.2.3 From fddaa1aff881c98f524221236af98ce70dcd04cf Mon Sep 17 00:00:00 2001 From: Bruce Allan Date: Wed, 13 Jan 2010 01:52:49 +0000 Subject: e1000e: MDIO slow mode should always be done for 82577 A previous 82577 workaround that set the MDIO access speed to slow mode for every PHY register read/write when the cable is unplugged should instead set the access mode to always be slow before any PHY register access. Since the mode bit gets cleared when the PHY is reset, set the mode after every PHY reset. Signed-off-by: Bruce Allan Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/e1000e/e1000.h | 1 - drivers/net/e1000e/ich8lan.c | 57 ++++++++++++++++++++++++++--- drivers/net/e1000e/phy.c | 85 -------------------------------------------- 3 files changed, 53 insertions(+), 90 deletions(-) diff --git a/drivers/net/e1000e/e1000.h b/drivers/net/e1000e/e1000.h index cebbd9079d5..d6ee28f6ea0 100644 --- a/drivers/net/e1000e/e1000.h +++ b/drivers/net/e1000e/e1000.h @@ -582,7 +582,6 @@ extern s32 e1000_read_phy_reg_hv_locked(struct e1000_hw *hw, u32 offset, extern s32 e1000_write_phy_reg_hv(struct e1000_hw *hw, u32 offset, u16 data); extern s32 e1000_write_phy_reg_hv_locked(struct e1000_hw *hw, u32 offset, u16 data); -extern s32 e1000_set_mdio_slow_mode_hv(struct e1000_hw *hw, bool slow); extern s32 e1000_link_stall_workaround_hv(struct e1000_hw *hw); extern s32 e1000_copper_link_setup_82577(struct e1000_hw *hw); extern s32 e1000_check_polarity_82577(struct e1000_hw *hw); diff --git a/drivers/net/e1000e/ich8lan.c b/drivers/net/e1000e/ich8lan.c index ad08cf3f40c..c2ea8619750 100644 --- a/drivers/net/e1000e/ich8lan.c +++ b/drivers/net/e1000e/ich8lan.c @@ -138,6 +138,10 @@ #define E1000_NVM_K1_CONFIG 0x1B /* NVM K1 Config Word */ #define E1000_NVM_K1_ENABLE 0x1 /* NVM Enable K1 bit */ +/* KMRN Mode Control */ +#define HV_KMRN_MODE_CTRL PHY_REG(769, 16) +#define HV_KMRN_MDIO_SLOW 0x0400 + /* ICH GbE Flash Hardware Sequencing Flash Status Register bit breakdown */ /* Offset 04h HSFSTS */ union ich8_hws_flash_status { @@ -219,6 +223,7 @@ static s32 e1000_set_lplu_state_pchlan(struct e1000_hw *hw, bool active); static void e1000_power_down_phy_copper_ich8lan(struct e1000_hw *hw); static void e1000_lan_init_done_ich8lan(struct e1000_hw *hw); static s32 e1000_k1_gig_workaround_hv(struct e1000_hw *hw, bool link); +static s32 e1000_set_mdio_slow_mode_hv(struct e1000_hw *hw); static inline u16 __er16flash(struct e1000_hw *hw, unsigned long reg) { @@ -270,7 +275,21 @@ static s32 e1000_init_phy_params_pchlan(struct e1000_hw *hw) phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT; phy->id = e1000_phy_unknown; - e1000e_get_phy_id(hw); + ret_val = e1000e_get_phy_id(hw); + if (ret_val) + goto out; + if ((phy->id == 0) || (phy->id == PHY_REVISION_MASK)) { + /* + * In case the PHY needs to be in mdio slow mode (eg. 82577), + * set slow mode and try to get the PHY id again. + */ + ret_val = e1000_set_mdio_slow_mode_hv(hw); + if (ret_val) + goto out; + ret_val = e1000e_get_phy_id(hw); + if (ret_val) + goto out; + } phy->type = e1000e_get_phy_type_from_id(phy->id); switch (phy->type) { @@ -292,6 +311,7 @@ static s32 e1000_init_phy_params_pchlan(struct e1000_hw *hw) break; } +out: return ret_val; } @@ -1075,6 +1095,26 @@ out: } +/** + * e1000_set_mdio_slow_mode_hv - Set slow MDIO access mode + * @hw: pointer to the HW structure + **/ +static s32 e1000_set_mdio_slow_mode_hv(struct e1000_hw *hw) +{ + s32 ret_val; + u16 data; + + ret_val = e1e_rphy(hw, HV_KMRN_MODE_CTRL, &data); + if (ret_val) + return ret_val; + + data |= HV_KMRN_MDIO_SLOW; + + ret_val = e1e_wphy(hw, HV_KMRN_MODE_CTRL, data); + + return ret_val; +} + /** * e1000_hv_phy_workarounds_ich8lan - A series of Phy workarounds to be * done after every PHY reset. @@ -1086,6 +1126,13 @@ static s32 e1000_hv_phy_workarounds_ich8lan(struct e1000_hw *hw) if (hw->mac.type != e1000_pchlan) return ret_val; + /* Set MDIO slow mode before any other MDIO access */ + if (hw->phy.type == e1000_phy_82577) { + ret_val = e1000_set_mdio_slow_mode_hv(hw); + if (ret_val) + goto out; + } + if (((hw->phy.type == e1000_phy_82577) && ((hw->phy.revision == 1) || (hw->phy.revision == 2))) || ((hw->phy.type == e1000_phy_82578) && (hw->phy.revision == 1))) { @@ -1184,6 +1231,7 @@ static s32 e1000_phy_hw_reset_ich8lan(struct e1000_hw *hw) /* Allow time for h/w to get to a quiescent state after reset */ mdelay(10); + /* Perform any necessary post-reset workarounds */ if (hw->mac.type == e1000_pchlan) { ret_val = e1000_hv_phy_workarounds_ich8lan(hw); if (ret_val) @@ -2484,6 +2532,10 @@ static s32 e1000_reset_hw_ich8lan(struct e1000_hw *hw) if (!ret_val) e1000_release_swflag_ich8lan(hw); + /* Perform any necessary post-reset workarounds */ + if (hw->mac.type == e1000_pchlan) + ret_val = e1000_hv_phy_workarounds_ich8lan(hw); + if (ctrl & E1000_CTRL_PHY_RST) ret_val = hw->phy.ops.get_cfg_done(hw); @@ -2528,9 +2580,6 @@ static s32 e1000_reset_hw_ich8lan(struct e1000_hw *hw) kab |= E1000_KABGTXD_BGSQLBIAS; ew32(KABGTXD, kab); - if (hw->mac.type == e1000_pchlan) - ret_val = e1000_hv_phy_workarounds_ich8lan(hw); - out: return ret_val; } diff --git a/drivers/net/e1000e/phy.c b/drivers/net/e1000e/phy.c index 55a2c0acfee..7f3ceb9dad6 100644 --- a/drivers/net/e1000e/phy.c +++ b/drivers/net/e1000e/phy.c @@ -152,32 +152,9 @@ s32 e1000e_get_phy_id(struct e1000_hw *hw) if (phy->id != 0 && phy->id != PHY_REVISION_MASK) goto out; - /* - * If the PHY ID is still unknown, we may have an 82577 - * without link. We will try again after setting Slow MDIC - * mode. No harm in trying again in this case since the PHY - * ID is unknown at this point anyway. - */ - ret_val = phy->ops.acquire(hw); - if (ret_val) - goto out; - ret_val = e1000_set_mdio_slow_mode_hv(hw, true); - if (ret_val) - goto out; - phy->ops.release(hw); - retry_count++; } out: - /* Revert to MDIO fast mode, if applicable */ - if (retry_count) { - ret_val = phy->ops.acquire(hw); - if (ret_val) - return ret_val; - ret_val = e1000_set_mdio_slow_mode_hv(hw, false); - phy->ops.release(hw); - } - return ret_val; } @@ -2790,38 +2767,6 @@ static s32 e1000_set_d0_lplu_state(struct e1000_hw *hw, bool active) return 0; } -/** - * e1000_set_mdio_slow_mode_hv - Set slow MDIO access mode - * @hw: pointer to the HW structure - * @slow: true for slow mode, false for normal mode - * - * Assumes semaphore already acquired. - **/ -s32 e1000_set_mdio_slow_mode_hv(struct e1000_hw *hw, bool slow) -{ - s32 ret_val = 0; - u16 data = 0; - - /* Set MDIO mode - page 769, register 16: 0x2580==slow, 0x2180==fast */ - hw->phy.addr = 1; - ret_val = e1000e_write_phy_reg_mdic(hw, IGP01E1000_PHY_PAGE_SELECT, - (BM_PORT_CTRL_PAGE << IGP_PAGE_SHIFT)); - if (ret_val) - goto out; - - ret_val = e1000e_write_phy_reg_mdic(hw, BM_CS_CTRL1, - (0x2180 | (slow << 10))); - if (ret_val) - goto out; - - /* dummy read when reverting to fast mode - throw away result */ - if (!slow) - ret_val = e1000e_read_phy_reg_mdic(hw, BM_CS_CTRL1, &data); - -out: - return ret_val; -} - /** * __e1000_read_phy_reg_hv - Read HV PHY register * @hw: pointer to the HW structure @@ -2839,7 +2784,6 @@ static s32 __e1000_read_phy_reg_hv(struct e1000_hw *hw, u32 offset, u16 *data, s32 ret_val; u16 page = BM_PHY_REG_PAGE(offset); u16 reg = BM_PHY_REG_NUM(offset); - bool in_slow_mode = false; if (!locked) { ret_val = hw->phy.ops.acquire(hw); @@ -2847,16 +2791,6 @@ static s32 __e1000_read_phy_reg_hv(struct e1000_hw *hw, u32 offset, u16 *data, return ret_val; } - /* Workaround failure in MDIO access while cable is disconnected */ - if ((hw->phy.type == e1000_phy_82577) && - !(er32(STATUS) & E1000_STATUS_LU)) { - ret_val = e1000_set_mdio_slow_mode_hv(hw, true); - if (ret_val) - goto out; - - in_slow_mode = true; - } - /* Page 800 works differently than the rest so it has its own func */ if (page == BM_WUC_PAGE) { ret_val = e1000_access_phy_wakeup_reg_bm(hw, offset, @@ -2893,10 +2827,6 @@ static s32 __e1000_read_phy_reg_hv(struct e1000_hw *hw, u32 offset, u16 *data, ret_val = e1000e_read_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & reg, data); out: - /* Revert to MDIO fast mode, if applicable */ - if ((hw->phy.type == e1000_phy_82577) && in_slow_mode) - ret_val |= e1000_set_mdio_slow_mode_hv(hw, false); - if (!locked) hw->phy.ops.release(hw); @@ -2948,7 +2878,6 @@ static s32 __e1000_write_phy_reg_hv(struct e1000_hw *hw, u32 offset, u16 data, s32 ret_val; u16 page = BM_PHY_REG_PAGE(offset); u16 reg = BM_PHY_REG_NUM(offset); - bool in_slow_mode = false; if (!locked) { ret_val = hw->phy.ops.acquire(hw); @@ -2956,16 +2885,6 @@ static s32 __e1000_write_phy_reg_hv(struct e1000_hw *hw, u32 offset, u16 data, return ret_val; } - /* Workaround failure in MDIO access while cable is disconnected */ - if ((hw->phy.type == e1000_phy_82577) && - !(er32(STATUS) & E1000_STATUS_LU)) { - ret_val = e1000_set_mdio_slow_mode_hv(hw, true); - if (ret_val) - goto out; - - in_slow_mode = true; - } - /* Page 800 works differently than the rest so it has its own func */ if (page == BM_WUC_PAGE) { ret_val = e1000_access_phy_wakeup_reg_bm(hw, offset, @@ -3019,10 +2938,6 @@ static s32 __e1000_write_phy_reg_hv(struct e1000_hw *hw, u32 offset, u16 data, data); out: - /* Revert to MDIO fast mode, if applicable */ - if ((hw->phy.type == e1000_phy_82577) && in_slow_mode) - ret_val |= e1000_set_mdio_slow_mode_hv(hw, false); - if (!locked) hw->phy.ops.release(hw); -- cgit v1.2.3 From baf86c9d36826fab0160251bbc87dfab3af48a21 Mon Sep 17 00:00:00 2001 From: Bruce Allan Date: Wed, 13 Jan 2010 01:53:08 +0000 Subject: e1000e: workaround link issues on busy hub in half duplex on 82577/82578 This patch removes a delay in hardware after every received packet allowing more time for transmitted packets to go out in between received packets in half duplex. Signed-off-by: Bruce Allan Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/e1000e/ich8lan.c | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) diff --git a/drivers/net/e1000e/ich8lan.c b/drivers/net/e1000e/ich8lan.c index c2ea8619750..8b6ecd12788 100644 --- a/drivers/net/e1000e/ich8lan.c +++ b/drivers/net/e1000e/ich8lan.c @@ -1122,6 +1122,7 @@ static s32 e1000_set_mdio_slow_mode_hv(struct e1000_hw *hw) static s32 e1000_hv_phy_workarounds_ich8lan(struct e1000_hw *hw) { s32 ret_val = 0; + u16 phy_data; if (hw->mac.type != e1000_pchlan) return ret_val; @@ -1165,16 +1166,32 @@ static s32 e1000_hv_phy_workarounds_ich8lan(struct e1000_hw *hw) hw->phy.addr = 1; ret_val = e1000e_write_phy_reg_mdic(hw, IGP01E1000_PHY_PAGE_SELECT, 0); + hw->phy.ops.release(hw); if (ret_val) goto out; - hw->phy.ops.release(hw); /* * Configure the K1 Si workaround during phy reset assuming there is * link so that it disables K1 if link is in 1Gbps. */ ret_val = e1000_k1_gig_workaround_hv(hw, true); + if (ret_val) + goto out; + /* Workaround for link disconnects on a busy hub in half duplex */ + ret_val = hw->phy.ops.acquire(hw); + if (ret_val) + goto out; + ret_val = hw->phy.ops.read_reg_locked(hw, + PHY_REG(BM_PORT_CTRL_PAGE, 17), + &phy_data); + if (ret_val) + goto release; + ret_val = hw->phy.ops.write_reg_locked(hw, + PHY_REG(BM_PORT_CTRL_PAGE, 17), + phy_data & 0x00FF); +release: + hw->phy.ops.release(hw); out: return ret_val; } -- cgit v1.2.3 From 55029c1d65158aea9672c5dfadb43a57f23e3100 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Wed, 13 Jan 2010 04:34:25 +0000 Subject: sfc: Fix polling for slow MCDI operations When the interface is down and we are using polled mode for MCDI operations, we busy-wait for completion for approximately 1 jiffy using udelay() and then back off to schedule(). But the completion will not wake the task, since we are using polled mode! We must use schedule_timeout_uninterruptible() instead. Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller --- drivers/net/sfc/mcdi.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/net/sfc/mcdi.c b/drivers/net/sfc/mcdi.c index 683353b904c..0d4eba7266e 100644 --- a/drivers/net/sfc/mcdi.c +++ b/drivers/net/sfc/mcdi.c @@ -142,8 +142,9 @@ static int efx_mcdi_poll(struct efx_nic *efx) if (spins != 0) { --spins; udelay(1); - } else - schedule(); + } else { + schedule_timeout_uninterruptible(1); + } time = get_seconds(); -- cgit v1.2.3 From f3766c26a5d00189e5c0965c66f01956d15a92d6 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Wed, 13 Jan 2010 10:59:13 +0000 Subject: sfc: Fix conditions for MDIO self-test The MDIO self-test should not be run on boards without an MDIO PHY, such as SFN5122F-R3 and later revisions. It should also not try to address a specific MMD in an MDIO clause 22 PHY. Check the mode_support field to decide which mode to use, if any. Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller --- drivers/net/sfc/selftest.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/net/sfc/selftest.c b/drivers/net/sfc/selftest.c index af393357979..250c8827b84 100644 --- a/drivers/net/sfc/selftest.c +++ b/drivers/net/sfc/selftest.c @@ -79,10 +79,14 @@ struct efx_loopback_state { static int efx_test_mdio(struct efx_nic *efx, struct efx_self_tests *tests) { int rc = 0; - int devad = __ffs(efx->mdio.mmds); + int devad; u16 physid1, physid2; - if (efx->phy_type == PHY_TYPE_NONE) + if (efx->mdio.mode_support & MDIO_SUPPORTS_C45) + devad = __ffs(efx->mdio.mmds); + else if (efx->mdio.mode_support & MDIO_SUPPORTS_C22) + devad = MDIO_DEVAD_NONE; + else return 0; mutex_lock(&efx->mac_lock); -- cgit v1.2.3 From 13fa95b0398d65885a79c6e95a09976ee9f8c009 Mon Sep 17 00:00:00 2001 From: Matt Carlson Date: Tue, 12 Jan 2010 10:11:36 +0000 Subject: tg3: Fix std prod ring nicaddr for 5787 and 57765 Commit 87668d352aa8d135bd695a050f18bbfc7b50b506, titled "tg3: Don't touch RCB nic addresses", tried to avoid assigning the nic address of the standard producer ring. Unfortunately, the default nic address is not correct for the 5787, the 5755M, or the 57765. This patch reenables the old behavior and opts out of the assignment only for the 5717. Signed-off-by: Matt Carlson Reviewed-by: Michael Chan Tested-by: Chow Loong Jin Tested-by: Dmitry Torokhov Signed-off-by: David S. Miller --- drivers/net/tg3.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 3a74d216859..5c77e6a4870 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -7742,7 +7742,7 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy) ((u64) tpr->rx_std_mapping >> 32)); tw32(RCVDBDI_STD_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_LOW, ((u64) tpr->rx_std_mapping & 0xffffffff)); - if (!(tp->tg3_flags3 & TG3_FLG3_5755_PLUS)) + if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5717) tw32(RCVDBDI_STD_BD + TG3_BDINFO_NIC_ADDR, NIC_SRAM_RX_BUFFER_DESC); -- cgit v1.2.3 From 86cfe4ff02a51294cb2c974a8bedc7f648491df9 Mon Sep 17 00:00:00 2001 From: Matt Carlson Date: Tue, 12 Jan 2010 10:11:37 +0000 Subject: tg3: Fix std rx prod ring handling There are some tg3 devices that require the driver to post new rx buffers in smaller increments. Commit 4361935afe3abc3e5a93006b99197fac1fabbd50, "tg3: Consider rx_std_prod_idx a hw mailbox" changed how the driver tracks the rx producer ring updates, but it does not make any special considerations for the above-mentioned devices. For those devices, it is possible for the driver to hit the special case path, which updates the hardware mailbox register but skips updating the shadow software mailbox member. If the special case path represents the final mailbox update for this ISR iteration, the hardware and software mailbox values will be out of sync. Ultimately, this will cause the driver to use a stale mailbox value on the next iteration, which will appear to the hardware as a large rx buffer update. Bad things ensue. The fix is to update the software shadow mailbox member when the special case path is taken. Signed-off-by: Matt Carlson Reviewed-by: Michael Chan Reported-by: Dmitry Torokhov Signed-off-by: David S. Miller --- drivers/net/tg3.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 5c77e6a4870..4e8b87d1ffa 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -4693,8 +4693,9 @@ next_pkt: (*post_ptr)++; if (unlikely(rx_std_posted >= tp->rx_std_max_post)) { - u32 idx = *post_ptr % TG3_RX_RING_SIZE; - tw32_rx_mbox(TG3_RX_STD_PROD_IDX_REG, idx); + tpr->rx_std_prod_idx = std_prod_idx % TG3_RX_RING_SIZE; + tw32_rx_mbox(TG3_RX_STD_PROD_IDX_REG, + tpr->rx_std_prod_idx); work_mask &= ~RXD_OPAQUE_RING_STD; rx_std_posted = 0; } -- cgit v1.2.3 From d1ec96af77df611d1728f3bb70289f83a02df1ea Mon Sep 17 00:00:00 2001 From: Matt Carlson Date: Tue, 12 Jan 2010 10:11:38 +0000 Subject: tg3: Add reliable serdes detection for 5717 A0 The serdes status bit does not work as intended for the 5717 A0. This patch implements an alternative detection scheme that will only be valid for A0 revisions. Signed-off-by: Matt Carlson Reviewed-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/tg3.c | 9 +++++++-- drivers/net/tg3.h | 2 ++ 2 files changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 4e8b87d1ffa..0a632f96d16 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -1037,7 +1037,11 @@ static void tg3_mdio_start(struct tg3 *tp) else tp->phy_addr = 1; - is_serdes = tr32(SG_DIG_STATUS) & SG_DIG_IS_SERDES; + if (tp->pci_chip_rev_id != CHIPREV_ID_5717_A0) + is_serdes = tr32(SG_DIG_STATUS) & SG_DIG_IS_SERDES; + else + is_serdes = tr32(TG3_CPMU_PHY_STRAP) & + TG3_CPMU_PHY_STRAP_IS_SERDES; if (is_serdes) tp->phy_addr += 7; } else @@ -12123,7 +12127,8 @@ static void __devinit tg3_get_eeprom_hw_cfg(struct tg3 *tp) tp->phy_id = eeprom_phy_id; if (eeprom_phy_serdes) { - if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS) + if ((tp->tg3_flags2 & TG3_FLG2_5780_CLASS) || + GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717) tp->tg3_flags2 |= TG3_FLG2_MII_SERDES; else tp->tg3_flags2 |= TG3_FLG2_PHY_SERDES; diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h index cd30889650f..43ed41b9f55 100644 --- a/drivers/net/tg3.h +++ b/drivers/net/tg3.h @@ -1054,6 +1054,8 @@ #define CPMU_MUTEX_REQ_DRIVER 0x00001000 #define TG3_CPMU_MUTEX_GNT 0x00003660 #define CPMU_MUTEX_GNT_DRIVER 0x00001000 +#define TG3_CPMU_PHY_STRAP 0x00003664 +#define TG3_CPMU_PHY_STRAP_IS_SERDES 0x00000020 /* 0x3664 --> 0x3800 unused */ /* Mbuf cluster free registers */ -- cgit v1.2.3 From 55dffe79b34e2af98bd1315f1e00c2fc6a7a7078 Mon Sep 17 00:00:00 2001 From: Matt Carlson Date: Tue, 12 Jan 2010 10:11:39 +0000 Subject: tg3: Disable 5717 serdes and B0 support The B0 revision of the 5717 will not get enough testing by the time 2.6.33 ships. Since the kernel is already at RC3, serdes support will require too many patches to fix. For these reasons, this patch disables 5717 serdes support and will refuse to attach to all 5717 devices that are later than an A0 revision. Signed-off-by: Matt Carlson Reviewed-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/tg3.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 0a632f96d16..2d1a7404057 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -13390,6 +13390,11 @@ static int __devinit tg3_get_invariants(struct tg3 *tp) if (err) return err; + if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 && + (tp->pci_chip_rev_id != CHIPREV_ID_5717_A0 || + (tp->tg3_flags2 & TG3_FLG2_MII_SERDES))) + return -ENOTSUPP; + /* Initialize data/descriptor byte/word swapping. */ val = tr32(GRC_MODE); val &= GRC_MODE_HOST_STACKUP; -- cgit v1.2.3 From ba5b0bfa06b6fbee03c6889046e9adcefa5d2c20 Mon Sep 17 00:00:00 2001 From: Matt Carlson Date: Tue, 12 Jan 2010 10:11:40 +0000 Subject: tg3: Update copyright and driver version This patch updates the copyright notice for 2010 and updates the version number to 3.106. Signed-off-by: Matt Carlson Reviewed-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/tg3.c | 6 +++--- drivers/net/tg3.h | 1 + 2 files changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 2d1a7404057..7f82b0238e0 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -4,7 +4,7 @@ * Copyright (C) 2001, 2002, 2003, 2004 David S. Miller (davem@redhat.com) * Copyright (C) 2001, 2002, 2003 Jeff Garzik (jgarzik@pobox.com) * Copyright (C) 2004 Sun Microsystems Inc. - * Copyright (C) 2005-2009 Broadcom Corporation. + * Copyright (C) 2005-2010 Broadcom Corporation. * * Firmware is: * Derived from proprietary unpublished source code, @@ -68,8 +68,8 @@ #define DRV_MODULE_NAME "tg3" #define PFX DRV_MODULE_NAME ": " -#define DRV_MODULE_VERSION "3.105" -#define DRV_MODULE_RELDATE "December 2, 2009" +#define DRV_MODULE_VERSION "3.106" +#define DRV_MODULE_RELDATE "January 12, 2010" #define TG3_DEF_MAC_MODE 0 #define TG3_DEF_RX_MODE 0 diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h index 43ed41b9f55..8a167912902 100644 --- a/drivers/net/tg3.h +++ b/drivers/net/tg3.h @@ -4,6 +4,7 @@ * Copyright (C) 2001, 2002, 2003, 2004 David S. Miller (davem@redhat.com) * Copyright (C) 2001 Jeff Garzik (jgarzik@pobox.com) * Copyright (C) 2004 Sun Microsystems Inc. + * Copyright (C) 2007-2010 Broadcom Corporation. */ #ifndef _T3_H -- cgit v1.2.3 From 2570a4f5428bcdb1077622342181755741e7fa60 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 13 Jan 2010 17:27:37 -0800 Subject: ipv6: skb_dst() can be NULL in ipv6_hop_jumbo(). This fixes CERT-FI FICORA #341748 Discovered by Olli Jarva and Tuomo Untinen from the CROSS project at Codenomicon Ltd. Just like in CVE-2007-4567, we can't rely upon skb_dst() being non-NULL at this point. We fixed that in commit e76b2b2567b83448c2ee85a896433b96150c92e6 ("[IPV6]: Do no rely on skb->dst before it is assigned.") However commit 483a47d2fe794328d29950fe00ce26dd405d9437 ("ipv6: added net argument to IP6_INC_STATS_BH") put a new version of the same bug into this function. Complicating analysis further, this bug can only trigger when network namespaces are enabled in the build. When namespaces are turned off, the dev_net() does not evaluate it's argument, so the dereference would not occur. So, for a long time, namespaces couldn't be turned on unless SYSFS was disabled. Therefore, this code has largely been disabled except by people turning it on explicitly for namespace development. With help from Eugene Teo Signed-off-by: David S. Miller --- net/ipv6/exthdrs.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c index df159fffe4b..4bac362b133 100644 --- a/net/ipv6/exthdrs.c +++ b/net/ipv6/exthdrs.c @@ -559,6 +559,11 @@ static inline struct inet6_dev *ipv6_skb_idev(struct sk_buff *skb) return skb_dst(skb) ? ip6_dst_idev(skb_dst(skb)) : __in6_dev_get(skb->dev); } +static inline struct net *ipv6_skb_net(struct sk_buff *skb) +{ + return skb_dst(skb) ? dev_net(skb_dst(skb)->dev) : dev_net(skb->dev); +} + /* Router Alert as of RFC 2711 */ static int ipv6_hop_ra(struct sk_buff *skb, int optoff) @@ -580,8 +585,8 @@ static int ipv6_hop_ra(struct sk_buff *skb, int optoff) static int ipv6_hop_jumbo(struct sk_buff *skb, int optoff) { const unsigned char *nh = skb_network_header(skb); + struct net *net = ipv6_skb_net(skb); u32 pkt_len; - struct net *net = dev_net(skb_dst(skb)->dev); if (nh[optoff + 1] != 4 || (optoff & 3) != 2) { LIMIT_NETDEBUG(KERN_DEBUG "ipv6_hop_jumbo: wrong jumbo opt length/alignment %d\n", -- cgit v1.2.3 From cd65c3c7d1081290b7365897c2290a84aa967d4d Mon Sep 17 00:00:00 2001 From: Octavian Purdila Date: Wed, 13 Jan 2010 18:10:36 -0800 Subject: net: fix build erros with CONFIG_BUG=n, CONFIG_GENERIC_BUG=n Fixed build errors introduced by commit 7ad6848c (ip: fix mc_loop checks for tunnels with multicast outer addresses) Signed-off-by: Octavian Purdila Signed-off-by: David S. Miller --- include/net/ip.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/net/ip.h b/include/net/ip.h index d9a0e74d892..fb63371c07a 100644 --- a/include/net/ip.h +++ b/include/net/ip.h @@ -338,7 +338,7 @@ static inline int sk_mc_loop(struct sock *sk) return inet6_sk(sk)->mc_loop; #endif } - __WARN(); + WARN_ON(1); return 1; } -- cgit v1.2.3