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2009-08-12net,pppoe: fixup module init/exit subsequent callsCyrill Gorcunov
pernet data should allocated first and freed last on module init/exit routines otherwise it's possible to have unserialized calls to packet handling routines. Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-06net: Avoid enqueuing skb for default qdiscsKrishna Kumar
dev_queue_xmit enqueue's a skb and calls qdisc_run which dequeue's the skb and xmits it. In most cases, the skb that is enqueue'd is the same one that is dequeue'd (unless the queue gets stopped or multiple cpu's write to the same queue and ends in a race with qdisc_run). For default qdiscs, we can remove the redundant enqueue/dequeue and simply xmit the skb since the default qdisc is work-conserving. The patch uses a new flag - TCQ_F_CAN_BYPASS to identify the default fast queue. The controversial part of the patch is incrementing qlen when a skb is requeued - this is to avoid checks like the second line below: + } else if ((q->flags & TCQ_F_CAN_BYPASS) && !qdisc_qlen(q) && >> !q->gso_skb && + !test_and_set_bit(__QDISC_STATE_RUNNING, &q->state)) { Results of a 2 hour testing for multiple netperf sessions (1, 2, 4, 8, 12 sessions on a 4 cpu system-X). The BW numbers are aggregate Mb/s across iterations tested with this version on System-X boxes with Chelsio 10gbps cards: ---------------------------------- Size | ORG BW NEW BW | ---------------------------------- 128K | 156964 159381 | 256K | 158650 162042 | ---------------------------------- Changes from ver1: 1. Move sch_direct_xmit declaration from sch_generic.h to pkt_sched.h 2. Update qdisc basic statistics for direct xmit path. 3. Set qlen to zero in qdisc_reset. 4. Changed some function names to more meaningful ones. Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-06mlx4_en: Not using Shared Receive QueuesYevgeny Petrilin
We use 1:1 mapping between QPs and SRQs on receive side, so additional indirection level not required. Allocated the receive buffers for the RSS QPs. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-06mlx4_en: Using real number of rings as RSS map sizeYevgeny Petrilin
There is no point in using more QPs then actual number of receive rings. If the RSS function for two streams gives the same result modulo number of rings, they will arrive to the same RX ring anyway. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-06mlx4_en: Adaptive moderation policy changeYevgeny Petrilin
If the net device is identified as "sender" (number of sent packets is higher then the number of received packets and the incoming packets are small), set the moderation time to its low limit. We do it because the incoming packets are acks, and we don't want to delay them Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-06net: smsc911x: switch to new dev_pm_opsDaniel Mack
Hibernation is unsupported for now, which meets the actual implementation in the driver. For free/thaw, the chip's D2 state should be entered. Signed-off-by: Daniel Mack <daniel@caiaq.de> Acked-by: <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-06tc35815: Use 0 RxFragSize.MinFrag value for non-packing modeAtsushi Nemoto
The datasheet say "When not enabling packing, the MinFrag value must remain at 0". Do not set value to RxFragSize register if TC35815_USE_PACKEDBUFFER disabled. This is not a bugfix. No real problem reported on this. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-06tc35815: Fix rx_missed_errors countAtsushi Nemoto
The Miss_Cnt register is cleared by reading. Accumulate its value to rx_missed_errors count. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-06tc35815: Increase timeout for mdioAtsushi Nemoto
The current timeout value is too short for very high-load condition which jiffies might jump up in busy-loop. Also add minimum delay before checking completion of MDIO. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-06tc35815: Improve BLEx / FDAEx handlingAtsushi Nemoto
Clear Int_BLEx / Int_FDAEx after (not before) processing Rx interrupt. This will reduce number of unnecessary interrupts. Also print rx error messages only if netif_msg_rx_err() enabled. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-06tc35815: Disable StripCRCAtsushi Nemoto
It seems Rx_StripCRC cause trouble on recovering from the BLEx (Buffer List Exhaust) or FDAEx (Free Descriptor Area Exhaust) condition. Do not use it. Also bump version number up. Reported-by: Ralf Roesch <ralf.roesch@rw-gmbh.de> Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-06Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
2009-08-05net/rds: Use AF_INET for sin_family fieldJulia Lawall
Elsewhere the sin_family field holds a value with a name of the form AF_..., so it seems reasonable to do so here as well. Also the values of PF_INET and AF_INET are the same. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ struct sockaddr_in sip; @@ ( sip.sin_family == - PF_INET + AF_INET | sip.sin_family != - PF_INET + AF_INET | sip.sin_family = - PF_INET + AF_INET ) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-05cxgb3: fix 2 ports 1G regressionDivy Le Ray
commit 88045b3cf0f8981129cb489c7b6bc36c21dd33a7 cxgb3: fix mac index mapping Override the mac index computation for the gen2 adapter, as each port is expected to use index 0. introduces a regression on 2 port 1G adapter as its xauicfg vpd value is null. Add a check on the device id. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-05vxge: Version updateBenjamin LaHaise
Update the driver version number for any bug reports from end users. Signed-off-by: Benjamin LaHaise <ben.lahaise@neterion.com> Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-05vxge: prefetch skb->dataBenjamin LaHaise
This patch implements prefetching of skb->data from a copy of the pointer in the descriptor (which is already in the L1 cache at this point). This improves netperf rx performance (netperf -L 0,0 -c -H 192.168.254.2 -- -M 131072 -m 131072) by 4.9% on a P4 Xeon host. Signed-off-by: Benjamin LaHaise <ben.lahaise@neterion.com> Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-05vxge: prefetch RxD descriptorsBenjamin LaHaise
This patch prefetches RxD descriptors which helps to lower the latency of a cache miss in vxge_hw_ring_rxd_next_completed. This lowers the % of CPU time used by vxge_hw_ring_rxd_next_completed() where the descriptor is accessed in profiling netperf on a P4 Xeon from 1.5% to 1.0%. Signed-off-by: Benjamin LaHaise <ben.lahaise@neterion.com> Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-05vxge: improve tx performance by using mmiowb() instead of wmb()Benjamin LaHaise
wmb() is extremely heavy on x86. The semantics required in the driver are provided by mmiowb(), so use that and improve tx performance on P4 Xeons by 5-10%. Signed-off-by: Benjamin LaHaise <ben.lahaise@neterion.com> Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-05vxge: fix pktgen hangs (don't abuse skb->cb[])Benjamin LaHaise
This patch fixes a case in the transmit completion code which was resulting in pktgen hanging at the end of a run. The cause is due to the fact that the ->cb[] area of an skb cannot be used in a network driver's transmit path, as that area belongs to the network protocol. Pktgen hangs, as it sends out the same packet multiple times, and vxge's use of this area of the skb for a temporary list can only add the packet to the temporary list once (while it may be on the queue many times). The fix is to remove this abuse of skb->cb[]. Instead, skb pointers are placed into a temporary stack array, and then free outside of the tx lock. This retains the smp optimization of doing dev_kfree_skb() outside of the tx lock. Signed-off-by: Benjamin LaHaise <ben.lahaise@neterion.com> Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-05vxge: don't drop frame on tx queue fullBenjamin LaHaise
The vxge driver will drop a packet in its transmit function if the number of TxDs available hits 0. Instead of doing that, simply stop the transmit queue when transmitting a packet with the last available TxD. Signed-off-by: Benjamin LaHaise <ben.lahaise@neterion.com> Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-05ixgbe: allow vlan egress priority mapping in DCB modeLucy Liu
The skb priority to vlan-qos egress mapping that can be configured using set_egress_map with vconfig is overriden by the DCB code in the driver. This patch allows this existing mechanism to work and will increase the configuration flexibility of DCB mode on Linux. A hierarchy of configuration is: 1. Modifies the ixgbe_select_queue() routine for DCB mode to return the priority value from the VLAN tag. It will normally be zero, unless the egress priority map has modified it. This will get packets into the correct queue and result in the queue_mapping field being set correctly. 2. Any tc filter which modifies queue_mapping will be honored, as the filters are handled after the vlan egress map is handled. Signed-off-by: Lucy Liu <lucy.liu@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-05be2net: Patch to perform function reset at initializationsarveshwarb
This patch is a bug fix to avoid system going into a bad state when driver is loaded in context of kdump kernel. The patch fixes the issue by performing a soft reset of pci function at probe time. Signed-off-by: sarveshwarb <sarveshwarb@serverengines.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-05net: implement a SO_DOMAIN getsockoptionJan Engelhardt
This sockopt goes in line with SO_TYPE and SO_PROTOCOL. It makes it possible for userspace programs to pass around file descriptors — I am referring to arguments-to-functions, but it may even work for the fd passing over UNIX sockets — without needing to also pass the auxiliary information (PF_INET6/IPPROTO_TCP). Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-05net: implement a SO_PROTOCOL getsockoptionJan Engelhardt
Similar to SO_TYPE returning the socket type, SO_PROTOCOL allows to retrieve the protocol used with a given socket. I am not quite sure why we have that-many copies of socket.h, and why the values are not the same on all arches either, but for where hex numbers dominate, I use 0x1029 for SO_PROTOCOL as that seems to be the next free unused number across a bunch of operating systems, or so Google results make me want to believe. SO_PROTOCOL for others just uses the next free Linux number, 38. Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-05netxen: add hardware LRO supportDhananjay Phadke
Add support to handle aggregate packets from firmware. Local TCP flows are automatically identified by firmware based on the dest IP hash added by driver for local IP addresses. The packets are sent down on the jumbo rx ring. Signed-off-by: Narender Kumar <narender.kumar@qlogic.com> Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-05netxen: remove unnecessary structuresDhananjay Phadke
Remove unnecessary offsetof calulations on these structures: netxen_board_info, netxen_user_old_info, netxen_new_user_info. The offsets into the flash are fixed, don't need to be calculated. Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-05netxen: fix vlan tso caseDhananjay Phadke
Fix the calculation of remaining header length in TSO over vlan device case. This was inadvertently missed out in patch 028afe719855a157e32450c ("netxen: add vlan tx acceleration support"). Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-05cpmac: unmark as brokenFlorian Fainelli
Starting with version 0.5.1, cpmac is no longer broken. Signed-off-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-05cpmac: bump version to 0.5.1Florian Fainelli
Signed-off-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-05cpmac: wait longer after MDIO resetFlorian Fainelli
This patch slows down the MDIO_ALIVE busy waiting to let switches and PHY come up after reset. Previous loop was too quick for IC+175C and ADM6996C/L switches to come up. Signed-off-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-05cpmac: add support for fixed PHYFlorian Fainelli
This patch adds support for fixed PHY connected in MII mode to cpmac. We allow external and dumb_switch module parameters to override the PHY detection process since they are always connected with MDIO bus identifier 0. This lets fixed PHYs to be detected correctly and be connected to the their corresponding MDIO bus identifier. Signed-off-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-05ar7: add fixed PHY support for the two on-board cpmacFlorian Fainelli
This patch adds fixed PHY support for the two on-chip cpmac Ethernet adapters. Signed-off-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-05cpmac: fix wrong MDIO bus identifierFlorian Fainelli
This patch fixes the wrong MDIO bus identifier which was set to 0 unconditionaly, suitable for external switches while it is actually 1 for PHYs different than external switches which are autodetected. Signed-off-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-05net: mark read-only arrays as constJan Engelhardt
String literals are constant, and usually, we can also tag the array of pointers const too, moving it to the .rodata section. Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-04xfrm6: Fix xfrm6_policy.c build when SYSCTL disabled.David S. Miller
Same as how Randy Dunlap fixed the ipv4 side of things. Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-04xfrm4: fix build when SYSCTLs are disabledRandy Dunlap
Fix build errors when SYSCTLs are not enabled: (.init.text+0x5154): undefined reference to `net_ipv4_ctl_path' (.init.text+0x5176): undefined reference to `register_net_sysctl_table' xfrm4_policy.c:(.exit.text+0x573): undefined reference to `unregister_net_sysctl_table Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-04ath9k: fix compile warning on ath9k_hw_AR9287_check_eeprom()Luis R. Rodriguez
CC [M] drivers/net/wireless/ath/ath9k/eeprom.o drivers/net/wireless/ath/ath9k/eeprom.c: In function ‘ath9k_hw_AR9287_check_eeprom’: drivers/net/wireless/ath/ath9k/eeprom.c:2866: warning: comparison of distinct pointer types lacks a cast Cc: Vivek Natarajan <vnatarajan@atheros.com> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04mac80211: FIF_PSPOLL filter flagIgor Perminov
When an interface is configured in the AP mode, the mac80211 implementation doesn't inform the driver to receive PS Poll frames. It leads to inability to communicate with power-saving stations reliably. The FIF_CONTROL flag isn't passed by mac80211 to ieee80211_ops.configure_filter when an interface is in the AP mode. And it's ok, because we don't want to receive ACK frames and other control ones, but only PS Poll ones. This patch introduces the FIF_PSPOLL filter flag in addition to FIF_CONTROL, which means for the driver "pass PS Poll frames". This flag is passed to the driver: A) When an interface is configured in the AP mode. B) In all cases, when the FIF_CONTROL flag was passed earlier (in addition to it). Signed-off-by: Igor Perminov <igor.perminov@inbox.ru> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04ath9k: cancel xmit poll work at stop() callbackLuis R. Rodriguez
We forgot to cancel this work at the stop() callback. ------------[ cut here ]------------ WARNING: at net/mac80211/util.c:511 ieee80211_queue_delayed_work+0x3a/0x40 [mac80211]() Hardware name: 6460DWU queueing ieee80211 work while going to suspend Modules linked in: <-- snip --> Pid: 5124, comm: phy0 Tainted: G W 2.6.31-rc3-wl #4 Call Trace: [<ffffffffa03adcda>] ? ieee80211_queue_delayed_work+0x3a/0x40 [mac80211] [<ffffffff810552b8>] warn_slowpath_common+0x78/0xd0 [<ffffffff81055394>] warn_slowpath_fmt+0x64/0x70 [<ffffffff814ed2c9>] ? thread_return+0x3e/0x635 [<ffffffffa03adcda>] ieee80211_queue_delayed_work+0x3a/0x40 [mac80211] [<ffffffffa0297690>] ath_tx_complete_poll_work+0xc0/0x100 [ath9k] [<ffffffffa02975d0>] ? ath_tx_complete_poll_work+0x0/0x100 [ath9k] [<ffffffff81069b68>] worker_thread+0x178/0x260 [<ffffffff8106ecc0>] ? autoremove_wake_function+0x0/0x40 [<ffffffff810699f0>] ? worker_thread+0x0/0x260 [<ffffffff8106e89e>] kthread+0x9e/0xb0 [<ffffffff8101302a>] child_rip+0xa/0x20 [<ffffffff8106e800>] ? kthread+0x0/0xb0 [<ffffffff81013020>] ? child_rip+0x0/0x20 Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04ath9k: add initial hardware support for ar9271Luis R. Rodriguez
We will finalize this after some driver core changes, for now we leave this unsupported. Cc: Stephen Chen <stephen.chen@atheros.com> Cc: Zhifeng Cai <zhifeng.cai@atheros.com> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04ath9k: add initvals and registry definitions for AR9271Luis R. Rodriguez
Cc: Stephen Chen <stephen.chen@atheros.com> Cc: Zhifeng Cai <zhifeng.cai@atheros.com> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04ath9k: add ar9271 revision and subrevision ID helpersLuis R. Rodriguez
These will be used later to add support for ar9271. Cc: Stephen Chen <stephen.chen@atheros.com> Cc: Zhifeng Cai <zhifeng.cai@atheros.com> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04ath9k: Remove _t postfix for ar9287_eeprom structureLuis R. Rodriguez
We don't use typdefs on ath9k, remove that _t. Cc: Vivek Natarajan <vnatarajan@atheros.com> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04ath9k: remove spurious check for channel on keycache resetLuis R. Rodriguez
ath9k_hw_keyreset() has a spurious check for ah->curchan.. remove it. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04ath9k: remove dangling error check on keycache reset on hw initLuis R. Rodriguez
The keycache reset will not fail as right above we ensure to set the sc->keymax to be <= ah->caps.keycache_size. Just remove this dangling check. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04ath9k: call ath9k_hw_detach() once upon hw init failureLuis R. Rodriguez
If hw initialization fails (ath9k_hw_init()) on ath_init_softc() we bail out and call ath9k_hw_detach(). The call ath9k_hw_detach() is conditional though as ath9k_hw_init() could itself have called ath9k_hw_detach(). Just describing this is itself a brain twister. Avoid this nonsense by removing ath9k_hw_detach() from ath9k_hw_init(). Upon hw initialization failure we expect the callers to take care of the cleanup. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04ath9k: set sc->sc_ah to NULL after freeing itLuis R. Rodriguez
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04ath9k: set ah to null after freeingLuis R. Rodriguez
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04ath9k: rename ath9k_hw_ani_detach() to ath9k_hw_ani_disable()Luis R. Rodriguez
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04ath9k: rename ath9k_hw_rfdetach() to ath9k_hw_rf_free()Luis R. Rodriguez
This makes it clear what this does. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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