From b6c3f5be7c6ac3375f44de4545c1ffe216b34022 Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Tue, 2 Feb 2010 10:08:19 -0600 Subject: b43: Fix throughput regression Commit c7ab5ef9bcd281135c21b4732c9be779585181be entitled "b43: implement short slot and basic rate handling" reduced the transmit throughput for my BCM4311 device from 18 Mb/s to 0.7 Mb/s. The basic rate handling portion is OK, the problem is in the short slot handling. Prior to this change, the short slot enable/disable routines were never called. Experimentation showed that the critical part was changing the value at offset 0x0010 in the shared memory. This is supposed to contain the 802.11 Slot Time in usec, but if it is changed from its initial value of zero, performance is destroyed. On the other hand, changing the value in the MMIO register corresponding to the Interframe Slot Time increased performance from 18 to 22 Mb/s. A BCM4306/3 also shows dramatic improvement of the transmit rate from 5.3 to 19.0 Mb/s. Other changes in the patch include removal of the magic number for the MMIO register, and allowing the slot time to be set for any PHY operating in the 2.4 GHz band. Previously, the routine was executed only for G PHYs. Signed-off-by: Larry Finger Cc: Stable [Any stable version back through 2.6.28] Signed-off-by: John W. Linville --- drivers/net/wireless/b43/b43.h | 1 + drivers/net/wireless/b43/main.c | 13 ++++++++++--- 2 files changed, 11 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h index fe3bf949199..c484cc25389 100644 --- a/drivers/net/wireless/b43/b43.h +++ b/drivers/net/wireless/b43/b43.h @@ -115,6 +115,7 @@ #define B43_MMIO_TSF_2 0x636 /* core rev < 3 only */ #define B43_MMIO_TSF_3 0x638 /* core rev < 3 only */ #define B43_MMIO_RNG 0x65A +#define B43_MMIO_IFSSLOT 0x684 /* Interframe slot time */ #define B43_MMIO_IFSCTL 0x688 /* Interframe space control */ #define B43_MMIO_IFSCTL_USE_EDCF 0x0004 #define B43_MMIO_POWERUP_DELAY 0x6A8 diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index 19b4eae47b5..fcbf0e27d9f 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -628,10 +628,17 @@ static void b43_upload_card_macaddress(struct b43_wldev *dev) static void b43_set_slot_time(struct b43_wldev *dev, u16 slot_time) { /* slot_time is in usec. */ - if (dev->phy.type != B43_PHYTYPE_G) + /* This test used to exit for all but a G PHY. */ + if (b43_current_band(dev->wl) == IEEE80211_BAND_5GHZ) return; - b43_write16(dev, 0x684, 510 + slot_time); - b43_shm_write16(dev, B43_SHM_SHARED, 0x0010, slot_time); + b43_write16(dev, B43_MMIO_IFSSLOT, 510 + slot_time); + /* Shared memory location 0x0010 is the slot time and should be + * set to slot_time; however, this register is initially 0 and changing + * the value adversely affects the transmit rate for BCM4311 + * devices. Until this behavior is unterstood, delete this step + * + * b43_shm_write16(dev, B43_SHM_SHARED, 0x0010, slot_time); + */ } static void b43_short_slot_timing_enable(struct b43_wldev *dev) -- cgit v1.2.3 From 391ae22ae5726d2a8cebfa62879635c54a349642 Mon Sep 17 00:00:00 2001 From: Michael Buesch Date: Wed, 3 Feb 2010 18:24:35 +0100 Subject: ssb: Fix CONFIG_SSB_SDIOHOST typo This fixes a CONFIG_SSB_SDIOHOST typo. Signed-off-by: Michael Buesch Reported-by: Christoph Egger Tested-By: Albert Herranz Signed-off-by: John W. Linville --- drivers/ssb/main.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c index 5681ebed9c6..03dfd27c4bf 100644 --- a/drivers/ssb/main.c +++ b/drivers/ssb/main.c @@ -494,8 +494,7 @@ static int ssb_devices_register(struct ssb_bus *bus) #endif break; case SSB_BUSTYPE_SDIO: -#ifdef CONFIG_SSB_SDIO - sdev->irq = bus->host_sdio->dev.irq; +#ifdef CONFIG_SSB_SDIOHOST dev->parent = &bus->host_sdio->dev; #endif break; -- cgit v1.2.3 From 0da780c269957783d341fc3559e6b4c9912af7b4 Mon Sep 17 00:00:00 2001 From: Benoit Papillault Date: Fri, 5 Feb 2010 01:21:03 +0100 Subject: mac80211: Fix probe request filtering in IBSS mode We only reply to probe request if either the requested SSID is the broadcast SSID or if the requested SSID matches our own SSID. This latter case was not properly handled since we were replying to different SSID with the same length as our own SSID. Signed-off-by: Benoit Papillault Cc: stable@kernel.org Signed-off-by: John W. Linville --- net/mac80211/ibss.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index 1f2db647bb5..22f0c2aa7a8 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -647,7 +647,7 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata, } if (pos[1] != 0 && (pos[1] != ifibss->ssid_len || - !memcmp(pos + 2, ifibss->ssid, ifibss->ssid_len))) { + memcmp(pos + 2, ifibss->ssid, ifibss->ssid_len))) { /* Ignore ProbeReq for foreign SSID */ return; } -- cgit v1.2.3 From 098dfded5b1b09927995e89c6d689f85a0f53384 Mon Sep 17 00:00:00 2001 From: Wey-Yi Guy Date: Fri, 5 Feb 2010 11:40:00 -0800 Subject: iwlwifi: Fix to set correct ht configuration iwl_set_rxon_ht() only get called in iwl_post_associate(); which cause possible incorrect ht configuration. Adding the call in iwl_mac_config() if IEEE80211_CONF_CHANGE_CHANNEL flag is set to re-configure and send rxon command. Fixes http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2146 Signed-off-by: Wey-Yi Guy Signed-off-by: Reinette Chatre CC: stable@kernel.org Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index 5461f105bd2..d10bea64fce 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -2744,6 +2744,7 @@ int iwl_mac_config(struct ieee80211_hw *hw, u32 changed) if ((le16_to_cpu(priv->staging_rxon.channel) != ch)) priv->staging_rxon.flags = 0; + iwl_set_rxon_ht(priv, ht_conf); iwl_set_rxon_channel(priv, conf->channel); iwl_set_flags_for_band(priv, conf->channel->band); -- cgit v1.2.3 From c0ce77b8323c1a0d4eeef97caf16c0ea971222a9 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 3 Feb 2010 10:22:31 +0100 Subject: mac80211: fix deferred hardware scan requests Reinette found the reason for the warnings that happened occasionally when a hw-offloaded scan finished; her description of the problem: mac80211 will defer the handling of scan requests if it is busy with management work at the time. The scan requests are deferred and run after the work has completed. When this occurs there are currently two problems. * The scan request for hardware scan is not fully populated with the band and channels to scan not initialized. * When the scan is queued the state is not correctly updated to reflect that a scan is in progress. The problem here is that when the driver completes the scan and calls ieee80211_scan_completed() a warning will be triggered since mac80211 was not aware that a scan was in progress. The reason is that the queued scan work will start the hw scan right away when the hw_scan_req struct has already been allocated. However, in the first pass it will not have been filled, which happens at the same time as setting the bits. To fix this, simply move the allocation after the pending work test as well, so that the first iteration of the scan work will call __ieee80211_start_scan() even in the hardware scan case. Bug-identified-by: Reinette Chatre Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- net/mac80211/scan.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index f934c9620b7..bc17cf7d68d 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -439,6 +439,16 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata, if (local->scan_req) return -EBUSY; + if (req != local->int_scan_req && + sdata->vif.type == NL80211_IFTYPE_STATION && + !list_empty(&ifmgd->work_list)) { + /* actually wait for the work it's doing to finish/time out */ + set_bit(IEEE80211_STA_REQ_SCAN, &ifmgd->request); + local->scan_req = req; + local->scan_sdata = sdata; + return 0; + } + if (local->ops->hw_scan) { u8 *ies; @@ -463,14 +473,6 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata, local->scan_req = req; local->scan_sdata = sdata; - if (req != local->int_scan_req && - sdata->vif.type == NL80211_IFTYPE_STATION && - !list_empty(&ifmgd->work_list)) { - /* actually wait for the work it's doing to finish/time out */ - set_bit(IEEE80211_STA_REQ_SCAN, &ifmgd->request); - return 0; - } - if (local->ops->hw_scan) __set_bit(SCAN_HW_SCANNING, &local->scanning); else -- cgit v1.2.3 From 6c8afef551fef87a3bf24f8a74c69a7f2f72fc82 Mon Sep 17 00:00:00 2001 From: Sujith Date: Tue, 9 Feb 2010 10:07:00 +0530 Subject: ath9k: Fix sequence numbers for PAE frames Currently, PAE frames are not assigned proper sequence numbers. Since sending PAE frames as part of aggregates breaks crupto with several APs, they are sent as normal MPDUs. Fix the seqeuence number issue by updating the frame with the internal sequence number. Tested-by: Felix Fietkau Signed-off-by: Sujith Cc: stable@kernel.org Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/xmit.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index fa12b9060b0..29bf33692f7 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -1615,7 +1615,7 @@ static int ath_tx_setup_buffer(struct ieee80211_hw *hw, struct ath_buf *bf, bf->bf_frmlen -= padsize; } - if (conf_is_ht(&hw->conf) && !is_pae(skb)) + if (conf_is_ht(&hw->conf)) bf->bf_state.bf_type |= BUF_HT; bf->bf_flags = setup_tx_flags(sc, skb, txctl->txq); @@ -1701,7 +1701,7 @@ static void ath_tx_start_dma(struct ath_softc *sc, struct ath_buf *bf, goto tx_done; } - if (tx_info->flags & IEEE80211_TX_CTL_AMPDU) { + if ((tx_info->flags & IEEE80211_TX_CTL_AMPDU) && !is_pae(skb)) { /* * Try aggregation if it's a unicast data frame * and the destination is HT capable. -- cgit v1.2.3 From 33a5d083e786f0c3fb4efedb59b0e8e3de39963b Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Tue, 9 Feb 2010 12:07:41 +0100 Subject: iwmc3200wifi: Test of wrong pointer after kzalloc in iwm_mlme_update_bss_table() The wrong pointer was tested. Signed-off-by: Roel Kluin Acked-by: Samuel Ortiz Signed-off-by: John W. Linville --- drivers/net/wireless/iwmc3200wifi/rx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/iwmc3200wifi/rx.c b/drivers/net/wireless/iwmc3200wifi/rx.c index 3db3d8b0749..64d16fe37f9 100644 --- a/drivers/net/wireless/iwmc3200wifi/rx.c +++ b/drivers/net/wireless/iwmc3200wifi/rx.c @@ -794,7 +794,7 @@ static int iwm_mlme_update_bss_table(struct iwm_priv *iwm, u8 *buf, } bss->bss = kzalloc(bss_len, GFP_KERNEL); - if (!bss) { + if (!bss->bss) { kfree(bss); IWM_ERR(iwm, "Couldn't allocate bss\n"); return -ENOMEM; -- cgit v1.2.3 From 174b24963eaf96dc5e093502ee09639aed13eb2f Mon Sep 17 00:00:00 2001 From: Jelle Martijn Kok Date: Wed, 10 Feb 2010 09:34:09 -0600 Subject: rtl8187: Add new device ID Add new RTL8187B device. Signed-off-by: Larry Finger Cc: Stable Signed-off-by: John W. Linville --- drivers/net/wireless/rtl818x/rtl8187_dev.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/wireless/rtl818x/rtl8187_dev.c b/drivers/net/wireless/rtl818x/rtl8187_dev.c index bc5726dd5fe..7ba3052b070 100644 --- a/drivers/net/wireless/rtl818x/rtl8187_dev.c +++ b/drivers/net/wireless/rtl818x/rtl8187_dev.c @@ -65,6 +65,7 @@ static struct usb_device_id rtl8187_table[] __devinitdata = { /* Sitecom */ {USB_DEVICE(0x0df6, 0x000d), .driver_info = DEVICE_RTL8187}, {USB_DEVICE(0x0df6, 0x0028), .driver_info = DEVICE_RTL8187B}, + {USB_DEVICE(0x0df6, 0x0029), .driver_info = DEVICE_RTL8187B}, /* Sphairon Access Systems GmbH */ {USB_DEVICE(0x114B, 0x0150), .driver_info = DEVICE_RTL8187}, /* Dick Smith Electronics */ -- cgit v1.2.3 From d6cade0f7f40834ff3b48f2469d00b1be0ea0db6 Mon Sep 17 00:00:00 2001 From: Simon Kagstrom Date: Tue, 9 Feb 2010 23:37:54 +0000 Subject: via-velocity: Remove unused IRQ status parameter from rx_srv and tx_srv Signed-off-by: Simon Kagstrom Signed-off-by: David S. Miller --- drivers/net/via-velocity.c | 17 +++++++---------- 1 file changed, 7 insertions(+), 10 deletions(-) diff --git a/drivers/net/via-velocity.c b/drivers/net/via-velocity.c index c93f58f5c6f..133069738ba 100644 --- a/drivers/net/via-velocity.c +++ b/drivers/net/via-velocity.c @@ -1877,13 +1877,12 @@ static void velocity_error(struct velocity_info *vptr, int status) /** * tx_srv - transmit interrupt service * @vptr; Velocity - * @status: * * Scan the queues looking for transmitted packets that * we can complete and clean up. Update any statistics as * necessary/ */ -static int velocity_tx_srv(struct velocity_info *vptr, u32 status) +static int velocity_tx_srv(struct velocity_info *vptr) { struct tx_desc *td; int qnum; @@ -2090,14 +2089,12 @@ static int velocity_receive_frame(struct velocity_info *vptr, int idx) /** * velocity_rx_srv - service RX interrupt * @vptr: velocity - * @status: adapter status (unused) * * Walk the receive ring of the velocity adapter and remove * any received packets from the receive queue. Hand the ring * slots back to the adapter for reuse. */ -static int velocity_rx_srv(struct velocity_info *vptr, int status, - int budget_left) +static int velocity_rx_srv(struct velocity_info *vptr, int budget_left) { struct net_device_stats *stats = &vptr->dev->stats; int rd_curr = vptr->rx.curr; @@ -2165,10 +2162,10 @@ static int velocity_poll(struct napi_struct *napi, int budget) * Do rx and tx twice for performance (taken from the VIA * out-of-tree driver). */ - rx_done = velocity_rx_srv(vptr, isr_status, budget / 2); - velocity_tx_srv(vptr, isr_status); - rx_done += velocity_rx_srv(vptr, isr_status, budget - rx_done); - velocity_tx_srv(vptr, isr_status); + rx_done = velocity_rx_srv(vptr, budget / 2); + velocity_tx_srv(vptr); + rx_done += velocity_rx_srv(vptr, budget - rx_done); + velocity_tx_srv(vptr); spin_unlock(&vptr->lock); @@ -3100,7 +3097,7 @@ static int velocity_resume(struct pci_dev *pdev) velocity_init_registers(vptr, VELOCITY_INIT_WOL); mac_disable_int(vptr->mac_regs); - velocity_tx_srv(vptr, 0); + velocity_tx_srv(vptr); for (i = 0; i < vptr->tx.numq; i++) { if (vptr->tx.used[i]) -- cgit v1.2.3 From 39c2ff43ea3830ccc693f965abdace96e514b1c5 Mon Sep 17 00:00:00 2001 From: Simon Kagstrom Date: Tue, 9 Feb 2010 23:38:07 +0000 Subject: via-velocity: Take spinlock on set coalesce velocity_set_coalesce touches ISR and some other sensitive registers not covered by the rtnl lock, so take the velocity spinlock. Signed-off-by: Simon Kagstrom Signed-off-by: David S. Miller --- drivers/net/via-velocity.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/via-velocity.c b/drivers/net/via-velocity.c index 133069738ba..54bafdab1f9 100644 --- a/drivers/net/via-velocity.c +++ b/drivers/net/via-velocity.c @@ -3341,6 +3341,7 @@ static int velocity_set_coalesce(struct net_device *dev, { struct velocity_info *vptr = netdev_priv(dev); int max_us = 0x3f * 64; + unsigned long flags; /* 6 bits of */ if (ecmd->tx_coalesce_usecs > max_us) @@ -3362,6 +3363,7 @@ static int velocity_set_coalesce(struct net_device *dev, ecmd->tx_coalesce_usecs); /* Setup the interrupt suppression and queue timers */ + spin_lock_irqsave(&vptr->lock, flags); mac_disable_int(vptr->mac_regs); setup_adaptive_interrupts(vptr); setup_queue_timers(vptr); @@ -3369,6 +3371,7 @@ static int velocity_set_coalesce(struct net_device *dev, mac_write_int_mask(vptr->int_mask, vptr->mac_regs); mac_clear_isr(vptr->mac_regs); mac_enable_int(vptr->mac_regs); + spin_unlock_irqrestore(&vptr->lock, flags); return 0; } -- cgit v1.2.3 From 3f2e8d9f13246382fbda6f03178eef867a9bfbe2 Mon Sep 17 00:00:00 2001 From: Simon Kagstrom Date: Tue, 9 Feb 2010 23:38:25 +0000 Subject: via-velocity: Fix races on shared interrupts This patch fixes two potential races in the velocity driver: * Move the ACK and error handler to the interrupt handler. This fixes a potential race with shared interrupts when the other device interrupts before the NAPI poll handler has finished. As the velocity driver hasn't acked it's own interrupt, it will then steal the interrupt from the other device. * Use spin_lock_irqsave in velocity_poll. In the current code, the interrupt handler will deadlock if e.g., the NAPI poll handler is executing when an interrupt (for another device) comes in since it tries to take the already held lock. Also unlock the spinlock only after enabling the interrupt in velocity_poll. The error path is moved to the interrupt handler since this is where the ISR is checked now. Signed-off-by: Simon Kagstrom Signed-off-by: Anders Grafstrom Signed-off-by: David S. Miller --- drivers/net/via-velocity.c | 21 ++++++++++----------- 1 file changed, 10 insertions(+), 11 deletions(-) diff --git a/drivers/net/via-velocity.c b/drivers/net/via-velocity.c index 54bafdab1f9..317aa34b21c 100644 --- a/drivers/net/via-velocity.c +++ b/drivers/net/via-velocity.c @@ -2148,16 +2148,9 @@ static int velocity_poll(struct napi_struct *napi, int budget) struct velocity_info *vptr = container_of(napi, struct velocity_info, napi); unsigned int rx_done; - u32 isr_status; - - spin_lock(&vptr->lock); - isr_status = mac_read_isr(vptr->mac_regs); - - /* Ack the interrupt */ - mac_write_isr(vptr->mac_regs, isr_status); - if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI))) - velocity_error(vptr, isr_status); + unsigned long flags; + spin_lock_irqsave(&vptr->lock, flags); /* * Do rx and tx twice for performance (taken from the VIA * out-of-tree driver). @@ -2167,13 +2160,12 @@ static int velocity_poll(struct napi_struct *napi, int budget) rx_done += velocity_rx_srv(vptr, budget - rx_done); velocity_tx_srv(vptr); - spin_unlock(&vptr->lock); - /* If budget not fully consumed, exit the polling mode */ if (rx_done < budget) { napi_complete(napi); mac_enable_int(vptr->mac_regs); } + spin_unlock_irqrestore(&vptr->lock, flags); return rx_done; } @@ -2203,10 +2195,17 @@ static irqreturn_t velocity_intr(int irq, void *dev_instance) return IRQ_NONE; } + /* Ack the interrupt */ + mac_write_isr(vptr->mac_regs, isr_status); + if (likely(napi_schedule_prep(&vptr->napi))) { mac_disable_int(vptr->mac_regs); __napi_schedule(&vptr->napi); } + + if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI))) + velocity_error(vptr, isr_status); + spin_unlock(&vptr->lock); return IRQ_HANDLED; -- cgit v1.2.3 From 598856407d4e20ebb4de01a91a93d89325924d43 Mon Sep 17 00:00:00 2001 From: Damian Lukowski Date: Wed, 10 Feb 2010 18:04:08 -0800 Subject: tcp: fix ICMP-RTO war Make sure, that TCP has a nonzero RTT estimation after three-way handshake. Currently, a listening TCP has a value of 0 for srtt, rttvar and rto right after the three-way handshake is completed with TCP timestamps disabled. This will lead to corrupt RTO recalculation and retransmission flood when RTO is recalculated on backoff reversion as introduced in "Revert RTO on ICMP destination unreachable" (f1ecd5d9e7366609d640ff4040304ea197fbc618). This behaviour can be provoked by connecting to a server which "responds first" (like SMTP) and rejecting every packet after the handshake with dest-unreachable, which will lead to softirq load on the server (up to 30% per socket in some tests). Thanks to Ilpo Jarvinen for providing debug patches and to Denys Fedoryshchenko for reporting and testing. Changes since v3: Removed bad characters in patchfile. Reported-by: Denys Fedoryshchenko Signed-off-by: Damian Lukowski Signed-off-by: David S. Miller --- net/ipv4/tcp_input.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 28e02963249..3fddc69cccc 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -5783,11 +5783,9 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb, /* tcp_ack considers this ACK as duplicate * and does not calculate rtt. - * Fix it at least with timestamps. + * Force it here. */ - if (tp->rx_opt.saw_tstamp && - tp->rx_opt.rcv_tsecr && !tp->srtt) - tcp_ack_saw_tstamp(sk, 0); + tcp_ack_update_rtt(sk, 0, 0); if (tp->rx_opt.tstamp_ok) tp->advmss -= TCPOLEN_TSTAMP_ALIGNED; -- cgit v1.2.3 From fafaf31bf9f965d91462ee115e27ef6c262b74ea Mon Sep 17 00:00:00 2001 From: Shanyu Zhao Date: Thu, 11 Feb 2010 10:42:22 -0800 Subject: iwlwifi: fix AMSDU Rx after paged Rx patch Previous patch "use paged Rx" broke AMSDU Rx functionality. If an AP sends out A-MSDU packets the station will crash. Fix it by linearizing skbuff for AMSDU packet before handing it to mac80211 since mac80211 doesn't support paged skbuff. This fixes http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2155 Reported-by: Norbert Preining Signed-off-by: Shanyu Zhao Acked-by: Zhu Yi Signed-off-by: Reinette Chatre Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-rx.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c index 6f36b6e79f5..2dbce85404a 100644 --- a/drivers/net/wireless/iwlwifi/iwl-rx.c +++ b/drivers/net/wireless/iwlwifi/iwl-rx.c @@ -928,7 +928,10 @@ static void iwl_pass_packet_to_mac80211(struct iwl_priv *priv, if (ieee80211_is_mgmt(fc) || ieee80211_has_protected(fc) || ieee80211_has_morefrags(fc) || - le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG) + le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG || + (ieee80211_is_data_qos(fc) && + *ieee80211_get_qos_ctl(hdr) & + IEEE80211_QOS_CONTROL_A_MSDU_PRESENT)) ret = skb_linearize(skb); else ret = __pskb_pull_tail(skb, min_t(u16, IWL_LINK_HDR_MAX, len)) ? -- cgit v1.2.3 From c6b471e6454c0e1c6d756672841cbaeae7c949f8 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Sun, 7 Feb 2010 17:26:30 +0000 Subject: inet: Remove bogus IGMPv3 report handling Currently we treat IGMPv3 reports as if it were an IGMPv2/v1 report. This is broken as IGMPv3 reports are formatted differently. So we end up suppressing a bogus multicast group (which should be harmless as long as the leading reserved field is zero). In fact, IGMPv3 does not allow membership report suppression so we should simply ignore IGMPv3 membership reports as a host. This patch does exactly that. I kept the case statement for it so people won't accidentally add it back thinking that we overlooked this case. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- net/ipv4/igmp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c index 76c08402c93..a42f658e756 100644 --- a/net/ipv4/igmp.c +++ b/net/ipv4/igmp.c @@ -946,7 +946,6 @@ int igmp_rcv(struct sk_buff *skb) break; case IGMP_HOST_MEMBERSHIP_REPORT: case IGMPV2_HOST_MEMBERSHIP_REPORT: - case IGMPV3_HOST_MEMBERSHIP_REPORT: /* Is it our report looped back? */ if (skb_rtable(skb)->fl.iif == 0) break; @@ -960,6 +959,7 @@ int igmp_rcv(struct sk_buff *skb) in_dev_put(in_dev); return pim_rcv_v1(skb); #endif + case IGMPV3_HOST_MEMBERSHIP_REPORT: case IGMP_DVMRP: case IGMP_TRACE: case IGMP_HOST_LEAVE_MESSAGE: -- cgit v1.2.3 From 5affcd6ba2036b59a4dee3f0576ae3584e92e4f1 Mon Sep 17 00:00:00 2001 From: Juuso Oikarinen Date: Fri, 12 Feb 2010 10:05:45 +0200 Subject: mac80211: fix handling of null-rate control in rate_control_get_rate For hardware with IEEE80211_HW_HAS_RATE_CONTROL the rate controller is not initialized. However, calling functions such as ieee80211_beacon_get result in the rate_control_get_rate function getting called, which is accessing (in this case uninitialized) rate control structures unconditionally. Fix by exiting the function before setting the rates for HW with IEEE80211_HW_HAS_RATE_CONTROL set. The initialization of the ieee80211_tx_info struct is intentionally still executed. Signed-off-by: Juuso Oikarinen Reviewed-by: Kalle Valo Cc: stable@kernel.org Signed-off-by: John W. Linville --- net/mac80211/rate.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c index b9007f80cb9..12a2bff7dcd 100644 --- a/net/mac80211/rate.c +++ b/net/mac80211/rate.c @@ -245,6 +245,9 @@ void rate_control_get_rate(struct ieee80211_sub_if_data *sdata, info->control.rates[i].count = 1; } + if (sdata->local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) + return; + if (sta && sdata->force_unicast_rateidx > -1) { info->control.rates[0].idx = sdata->force_unicast_rateidx; } else { -- cgit v1.2.3 From 5e2a911cecc7e0fd89b1d2d001b7b89d47057ad6 Mon Sep 17 00:00:00 2001 From: Steve Hodgson Date: Fri, 12 Feb 2010 12:32:27 -0800 Subject: sfc: Fix SFE4002 initialisation From: Steve Hodgson Commit 357d46a17e54c9a87e0e6ef3930ff4ab2d232b81 "sfc: QT202x: Remove unreliable MMD check at initialisation" broke initialisation of the SFE4002. efx_mdio_reset_mmd() returns a positive value rather than 0 on success. The above commit causes this value to be propagated up by qt202x_reset_phy(), which is treated as a failure by its callers. Change qt202x_reset_phy() to return 0 if successful. The PCI layer treats >0 as "fail, but please call remove() anyway", which means that unloading the driver would cause a crash. Add a WARN_ON() on the failure path of efx_pci_probe() to provide early warning if there are any other cases where we do this. Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller --- drivers/net/sfc/efx.c | 1 + drivers/net/sfc/qt202x_phy.c | 2 +- 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c index 103e8b0e2a0..46997e177ee 100644 --- a/drivers/net/sfc/efx.c +++ b/drivers/net/sfc/efx.c @@ -2284,6 +2284,7 @@ static int __devinit efx_pci_probe(struct pci_dev *pci_dev, fail2: efx_fini_struct(efx); fail1: + WARN_ON(rc > 0); EFX_LOG(efx, "initialisation failed. rc=%d\n", rc); free_netdev(net_dev); return rc; diff --git a/drivers/net/sfc/qt202x_phy.c b/drivers/net/sfc/qt202x_phy.c index e0d13a45101..67eec7a6e48 100644 --- a/drivers/net/sfc/qt202x_phy.c +++ b/drivers/net/sfc/qt202x_phy.c @@ -320,7 +320,7 @@ static int qt202x_reset_phy(struct efx_nic *efx) falcon_board(efx)->type->init_phy(efx); - return rc; + return 0; fail: EFX_ERR(efx, "PHY reset timed out\n"); -- cgit v1.2.3 From a626e8478b18de4fdee0e6d13975cea2b23efea5 Mon Sep 17 00:00:00 2001 From: Don Skidmore Date: Thu, 11 Feb 2010 04:13:49 +0000 Subject: ixgbe: Fix - Do not allow Rx FC on 82598 at 1G due to errata The 82598 has an erratum that receipt of pause frames at 1G could lead to a Tx Hang. To avoid this this patch disables Rx FC while at 1G speed for all 82598 parts. Signed-off-by: Don Skidmore Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ixgbe/ixgbe_82598.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/drivers/net/ixgbe/ixgbe_82598.c b/drivers/net/ixgbe/ixgbe_82598.c index 3103f416531..35a06b47587 100644 --- a/drivers/net/ixgbe/ixgbe_82598.c +++ b/drivers/net/ixgbe/ixgbe_82598.c @@ -357,12 +357,34 @@ static s32 ixgbe_fc_enable_82598(struct ixgbe_hw *hw, s32 packetbuf_num) u32 fctrl_reg; u32 rmcs_reg; u32 reg; + u32 link_speed = 0; + bool link_up; #ifdef CONFIG_DCB if (hw->fc.requested_mode == ixgbe_fc_pfc) goto out; #endif /* CONFIG_DCB */ + /* + * On 82598 having Rx FC on causes resets while doing 1G + * so if it's on turn it off once we know link_speed. For + * more details see 82598 Specification update. + */ + hw->mac.ops.check_link(hw, &link_speed, &link_up, false); + if (link_up && link_speed == IXGBE_LINK_SPEED_1GB_FULL) { + switch (hw->fc.requested_mode) { + case ixgbe_fc_full: + hw->fc.requested_mode = ixgbe_fc_tx_pause; + break; + case ixgbe_fc_rx_pause: + hw->fc.requested_mode = ixgbe_fc_none; + break; + default: + /* no change */ + break; + } + } + /* Negotiate the fc mode to use */ ret_val = ixgbe_fc_autoneg(hw); if (ret_val) -- cgit v1.2.3 From e86bff0edaa514a63ecd80e1ed2b3472b2507880 Mon Sep 17 00:00:00 2001 From: Don Skidmore Date: Thu, 11 Feb 2010 04:14:08 +0000 Subject: ixgbe: fix WOL register setup for 82599 We need to have the WUS register set to all 1's in order for the hardware to be capable of ever waking up. Set it here in the ixgbe_probe(). Signed-off-by: Don Skidmore 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 7b7c8486c0b..951b73cf5ca 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -5763,6 +5763,10 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev, if (err) goto err_sw_init; + /* Make it possible the adapter to be woken up via WOL */ + if (adapter->hw.mac.type == ixgbe_mac_82599EB) + IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0); + /* * If there is a fan on this device and it has failed log the * failure. -- cgit v1.2.3 From 1cab819b5e244e1b853c7b440981e6a960da3bfb Mon Sep 17 00:00:00 2001 From: stephen hemminger Date: Thu, 11 Feb 2010 13:48:29 +0000 Subject: ethtool: allow non-admin user to read GRO settings. Looks like an oversight in GRO design. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- net/core/ethtool.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/core/ethtool.c b/net/core/ethtool.c index d8aee584e8d..236a9988ea9 100644 --- a/net/core/ethtool.c +++ b/net/core/ethtool.c @@ -927,6 +927,7 @@ int dev_ethtool(struct net *net, struct ifreq *ifr) case ETHTOOL_GPERMADDR: case ETHTOOL_GUFO: case ETHTOOL_GGSO: + case ETHTOOL_GGRO: case ETHTOOL_GFLAGS: case ETHTOOL_GPFLAGS: case ETHTOOL_GRXFH: -- cgit v1.2.3 From 10e7454ed7a2da39f1f6255f63d7df27ab4bb67f Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Mon, 15 Feb 2010 19:24:30 +0000 Subject: ipcomp: Avoid duplicate calls to ipcomp_destroy When ipcomp_tunnel_attach fails we will call ipcomp_destroy twice. This may lead to double-frees on certain structures. As there is no reason to explicitly call ipcomp_destroy, this patch removes it from ipcomp*.c and lets the standard xfrm_state destruction take place. This is based on the discovery and patch by Alexey Dobriyan. Tested-by: Alexey Dobriyan Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- net/ipv4/ipcomp.c | 6 +----- net/ipv6/ipcomp6.c | 6 +----- 2 files changed, 2 insertions(+), 10 deletions(-) diff --git a/net/ipv4/ipcomp.c b/net/ipv4/ipcomp.c index 38fbf04150a..544ce0876f1 100644 --- a/net/ipv4/ipcomp.c +++ b/net/ipv4/ipcomp.c @@ -124,16 +124,12 @@ static int ipcomp4_init_state(struct xfrm_state *x) if (x->props.mode == XFRM_MODE_TUNNEL) { err = ipcomp_tunnel_attach(x); if (err) - goto error_tunnel; + goto out; } err = 0; out: return err; - -error_tunnel: - ipcomp_destroy(x); - goto out; } static const struct xfrm_type ipcomp_type = { diff --git a/net/ipv6/ipcomp6.c b/net/ipv6/ipcomp6.c index 2f2a5ca2c87..002e6eef912 100644 --- a/net/ipv6/ipcomp6.c +++ b/net/ipv6/ipcomp6.c @@ -154,16 +154,12 @@ static int ipcomp6_init_state(struct xfrm_state *x) if (x->props.mode == XFRM_MODE_TUNNEL) { err = ipcomp6_tunnel_attach(x); if (err) - goto error_tunnel; + goto out; } err = 0; out: return err; -error_tunnel: - ipcomp_destroy(x); - - goto out; } static const struct xfrm_type ipcomp6_type = -- cgit v1.2.3 From 553f9118abc4fc53674fff87f6fe5fa3f56a41ed Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Mon, 15 Feb 2010 20:00:51 +0000 Subject: xfrm: Fix xfrm_state_clone leak xfrm_state_clone calls kfree instead of xfrm_state_put to free a failed state. Depending on the state of the failed state, it can cause leaks to things like module references. All states should be freed by xfrm_state_put past the point of xfrm_init_state. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- net/xfrm/xfrm_state.c | 12 +++--------- 1 file changed, 3 insertions(+), 9 deletions(-) diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c index b36cc344474..f445ea1c5f5 100644 --- a/net/xfrm/xfrm_state.c +++ b/net/xfrm/xfrm_state.c @@ -1102,7 +1102,7 @@ static struct xfrm_state *xfrm_state_clone(struct xfrm_state *orig, int *errp) int err = -ENOMEM; struct xfrm_state *x = xfrm_state_alloc(net); if (!x) - goto error; + goto out; memcpy(&x->id, &orig->id, sizeof(x->id)); memcpy(&x->sel, &orig->sel, sizeof(x->sel)); @@ -1160,16 +1160,10 @@ static struct xfrm_state *xfrm_state_clone(struct xfrm_state *orig, int *errp) return x; error: + xfrm_state_put(x); +out: if (errp) *errp = err; - if (x) { - kfree(x->aalg); - kfree(x->ealg); - kfree(x->calg); - kfree(x->encap); - kfree(x->coaddr); - } - kfree(x); return NULL; } -- cgit v1.2.3 From 07793d33b4fba00f5bd1dac78fa038bb0e23fa5c Mon Sep 17 00:00:00 2001 From: Ajit Khaparde Date: Tue, 16 Feb 2010 00:18:46 +0000 Subject: be2net: set proper value to version field in req hdr Before sending a command to the ASIC, set version properly. This is necessary for the ARM firmware to send correct data to the driver. This also fixes a bug in certain skews of the ASIC where the statistics are misreported. Signed-off-by: Ajit Khaparde Signed-off-by: David S. Miller --- drivers/net/benet/be_cmds.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/benet/be_cmds.c b/drivers/net/benet/be_cmds.c index fee6eee7ae5..006cb2efcd2 100644 --- a/drivers/net/benet/be_cmds.c +++ b/drivers/net/benet/be_cmds.c @@ -296,6 +296,7 @@ static void be_cmd_hdr_prepare(struct be_cmd_req_hdr *req_hdr, req_hdr->opcode = opcode; req_hdr->subsystem = subsystem; req_hdr->request_length = cpu_to_le32(cmd_len - sizeof(*req_hdr)); + req_hdr->version = 0; } static void be_cmd_page_addrs_prepare(struct phys_addr *pages, u32 max_pages, -- cgit v1.2.3