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2010-04-27net/sb1250: setup the pdevice within the soc codeSebastian Andrzej Siewior
doing it within the driver does not look good. And surely isn't how platform devices were meat to be used. Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27net/sb1250: remove CONFIG_SIBYTE_STANDALONESebastian Andrzej Siewior
CONFIG_SIBYTE_STANDALONE is gone since v2.6.31-rc1 ("MIPS: Sibyte: Remove standalone kernel support") This is a missing piece. Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27net: disallow to use net_assign_generic externallyJiri Pirko
Now there's no need to use this fuction directly because it's handled by register_pernet_device. So to make this simple and easy to understand, make this static to do not tempt potentional users. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27cxgb4: increase serial number lengthDimitris Michailidis
Some boards have longer serial numbers in their VPD, up to 24 bytes. Signed-off-by: Dimitris Michailidis <dm@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27cxgb4: parse the VPD instead of relying on a static VPD layoutDimitris Michailidis
Some boards' VPDs contain additional keywords or have longer serial numbers, meaning the keyword locations are variable. Ditch the static layout and use the pci_vpd_* family of functions to parse the VPD instead. Signed-off-by: Dimitris Michailidis <dm@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27net: sk_add_backlog() take rmem_alloc into accountEric Dumazet
Current socket backlog limit is not enough to really stop DDOS attacks, because user thread spend many time to process a full backlog each round, and user might crazy spin on socket lock. We should add backlog size and receive_queue size (aka rmem_alloc) to pace writers, and let user run without being slow down too much. Introduce a sk_rcvqueues_full() helper, to avoid taking socket lock in stress situations. Under huge stress from a multiqueue/RPS enabled NIC, a single flow udp receiver can now process ~200.000 pps (instead of ~100 pps before the patch) on a 8 core machine. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27net: batch skb dequeueing from softnet input_pkt_queueChangli Gao
batch skb dequeueing from softnet input_pkt_queue to reduce potential lock contention when RPS is enabled. Note: in the worst case, the number of packets in a softnet_data may be double of netdev_max_backlog. Signed-off-by: Changli Gao <xiaosuo@gmail.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27net: Make RFS socket operations not be inet specific.David S. Miller
Idea from Eric Dumazet. As for placement inside of struct sock, I tried to choose a place that otherwise has a 32-bit hole on 64-bit systems. Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
2010-04-27ixgbe: Properly display 1 gig downshift warning for backplaneAnjali Singhai
Description: When using Intel smartspeed, the patch displays a warning when the link down shifts to 1 Gig. Signed-off-by: Anjali Singhai <anjali.singhai@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27ixgbe: cleanup ethtool autoneg inputDon Skidmore
The way we were setting autoneg via ethtool was inconstant with that of our other drivers. It will change the following: If autoneg is off: >ethtool -a eth0 Pause parameters for eth0: Autonegotiate: off RX: off TX: off Before: >ethtool -A eth0 autoneg on >ethtool -a eth0 Pause parameters for eth0: Autonegotiate: off RX: off TX: off Now: >ethtool -A eth0 autoneg on >ethtool -a eth0 Pause parameters for eth0: Autonegotiate: on RX: on TX: on Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27ixgbevf: Fix link speed displayGreg Rose
The ixgbevf driver would always report 10Gig speeds even when the link speed is downshifted to 1Gig. This patch fixes that problem. Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27net: reimplement softnet_data.output_queue as a FIFO queueChangli Gao
reimplement softnet_data.output_queue as a FIFO queue to keep the fairness among the qdiscs rescheduled. Signed-off-by: Changli Gao <xiaosuo@gmail.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> ---- include/linux/netdevice.h | 1 + net/core/dev.c | 22 ++++++++++++---------- 2 files changed, 13 insertions(+), 10 deletions(-) Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/kaber/ipmr-2.6
2010-04-27ixgb: Use pr_<level> and netdev_<level>Joe Perches
Convert DEBUGOUTx to pr_debug Convert DEBUGFUNC to more commonly used ENTER Convert mac address output to %pM Use #define pr_fmt Convert a few printks to pr_<level> Improve ixgb_mc_addr_list_update: use a temporary for current mc address Use etherdevice.h functions for mac address testing Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27ixgbe: ixgbe_down needs to stop dev_watchdogJohn Fastabend
There is a small race between when the tx queues are stopped and when netif_carrier_off() is called in ixgbe_down. If the dev_watchdog() timer fires during this time it is possible for a false tx timeout to occur. This patch moves the netif_carrier_off() so that it is called before the tx queues are stopped preventing the dev_watchdog timer from detecting false tx timeouts. The race is seen occosionally when FCoE or DCB settings are being configured or changed. Testing note, running ifconfig up/down will not reproduce this issue because dev_open/dev_close call dev_deactivate() and then dev_activate(). Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27igb: add support for reporting 5GT/s during probe on PCIe Gen2Alexander Duyck
This change corrects the fact that we were not reporting Gen2 link speeds when we were in fact connected at Gen2 rates. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27ixgbe: fix bug when EITR=0 causing no writebacksJesse Brandeburg
writebacks can be held indefinitely by hardware if EITR=0, when combined with TXDCTL.WTHRESH=8. When EITR=0, WTHRESH should be set back to zero. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27ixgbe: enable extremely low latencyJesse Brandeburg
82598/82599 can support EITR == 0, which allows for the absolutely lowest latency setting in the hardware. This disables writeback batching and anything else that relies upon a delayed interrupt. This patch enables the feature of "override" when a user sets rx-usecs to zero, the driver will respect that setting over using RSC, and automatically disable RSC. If rx-usecs is used to set the EITR value to 0, then the driver should disable LRO (aka RSC) internally until EITR is set to non-zero again. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27igbvf: double increment nr_fragsKoki Sanagi
There is no need to increment nr_frags because skb_fill_page_desc increments it. Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27igb: double increment nr_fragsKoki Sanagi
There is no need to increment nr_frags because skb_fill_page_desc increments it. Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27net: fix a lockdep rcu warning in __sk_dst_set()Eric Dumazet
__sk_dst_set() might be called while no state can be integrated in a rcu_dereference_check() condition. So use rcu_dereference_raw() to shutup lockdep warnings (if CONFIG_PROVE_RCU is set) Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27rps: inet_rps_save_rxhash() argument is not constEric Dumazet
const qualifier on sock argument is misleading, since we can modify rxhash. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27TCP: avoid to send keepalive probes if receiving dataFlavio Leitner
RFC 1122 says the following: ... Keep-alive packets MUST only be sent when no data or acknowledgement packets have been received for the connection within an interval. ... The acknowledgement packet is reseting the keepalive timer but the data packet isn't. This patch fixes it by checking the timestamp of the last received data packet too when the keepalive timer expires. Signed-off-by: Flavio Leitner <fleitner@redhat.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27bridge: multicast router list manipulationstephen hemminger
I prefer that the hlist be only accessed through the hlist macro objects. Explicit twiddling of links (especially with RCU) exposes the code to future bugs. Compile tested only. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27bridge: use is_multicast_ether_addrstephen hemminger
Use existing inline function. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/e100.c drivers/net/e1000e/netdev.c
2010-04-27net: suppress RCU lockdep false positive in twsk_net()Paul E. McKenney
Calls to twsk_net() are in some cases protected by reference counting as an alternative to RCU protection. Cases covered by reference counts include __inet_twsk_kill(), inet_twsk_free(), inet_twdr_do_twkill_work(), inet_twdr_twcal_tick(), and tcp_timewait_state_process(). RCU is used by inet_twsk_purge(). Locking is used by established_get_first() and established_get_next(). Finally, __inet_twsk_hashdance() is an initialization case. It appears to be non-trivial to locate the appropriate locks and reference counts from within twsk_net(), so used rcu_dereference_raw(). Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27cxgb3: Wait longer for control packets on initializationAndre Detsch
In some Power7 platforms, when using VIOS (Virtual I/O Server), we need to wait longer for control packets to finish transfer during initialization. Without this change, initialization may fail prematurely. Signed-off-by: Wen Xiong <wenxiong@us.ibm.com> Signed-off-by: Andre Detsch <adetsch@br.ibm.com> Acked-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27e1000e: enable/disable ASPM L0s and L1 and ERT according to hardware errataBruce Allan
Prompted by a previous patch submitted by Matthew Garret <mjg@redhat.com>, further digging into errata documentation reveals the current enabling or disabling of ASPM L0s and L1 states for certain parts supported by this driver are incorrect. 82571 and 82572 should always disable L1. For standard frames, 82573/82574/82583 can enable L1 but L0s must be disabled, and for jumbo frames 82573/82574 must disable L1. This allows for some parts to enable L1 in certain configurations leading to better power savings. Also according to the same errata, Early Receive (ERT) should be disabled on 82573 when using jumbo frames. Cc: Matthew Garret <mjg@redhat.com> Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27ixgbe: Power down PHY during driver resetsPeter Waskiewicz
The PHY laser is still on during driver init. It's allowing garbage to hit our FIFO, which eventually can cause the entire device to die. Power down the laser while setting up the device, and re-enable the laser before getting link. Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27bridge: Fix build of ipv6 multicast code.David S. Miller
Based upon a report from Stephen Rothwell: -------------------- net/bridge/br_multicast.c: In function 'br_ip6_multicast_alloc_query': net/bridge/br_multicast.c:469: error: implicit declaration of function 'csum_ipv6_magic' Introduced by commit 08b202b6726459626c73ecfa08fcdc8c3efc76c2 ("bridge br_multicast: IPv6 MLD support") from the net tree. csum_ipv6_magic is declared in net/ip6_checksum.h ... -------------------- Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-26r8169: more broken register writes workaroundfrançois romieu
78f1cd02457252e1ffbc6caa44a17424a45286b8 ("fix broken register writes") does not work for Al Viro's r8169 (XID 18000000). Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-26r8169: failure to enable mwi should not be fatalfrançois romieu
Few (6) network drivers enable mwi explicitly. Fewer worry about a failure. It is not a fix but it should avoid some annoyance like http://bugzilla.kernel.org/show_bug.cgi?id=15454 Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Cc: Conrad Kostecki <conikost@gmx.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-26bridge br_multicast: Ensure to initialize BR_INPUT_SKB_CB(skb)->mrouters_only.YOSHIFUJI Hideaki / 吉藤英明
Even with commit 32dec5dd0233ebffa9cae25ce7ba6daeb7df4467 ("bridge br_multicast: Don't refer to BR_INPUT_SKB_CB(skb)->mrouters_only without IGMP snooping."), BR_INPUT_SKB_CB(skb)->mrouters_only is not appropriately initialized if IGMP/MLD snooping support is compiled and disabled, so we can see garbage. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-26bridge br_multicast: Ensure to initialize BR_INPUT_SKB_CB(skb)->mrouters_only.YOSHIFUJI Hideaki / 吉藤英明
Even with commit 32dec5dd0233ebffa9cae25ce7ba6daeb7df4467 ("bridge br_multicast: Don't refer to BR_INPUT_SKB_CB(skb)->mrouters_only without IGMP snooping."), BR_INPUT_SKB_CB(skb)->mrouters_only is not appropriately initialized if IGMP snooping support is compiled and disabled, so we can see garbage. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-26ieee802154: Fix oops during ieee802154_sock_ioctlStefan Schmidt
Trying to run izlisten (from lowpan-tools tests) on a device that does not exists I got the oops below. The problem is that we are using get_dev_by_name without checking if we really get a device back. We don't in this case and writing to dev->type generates this oops. [Oops code removed by Dmitry Eremin-Solenikov] If possible this patch should be applied to the current -rc fixes branch. Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org> Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-26net: use sk_sleep()Eric Dumazet
Commit aa395145 (net: sk_sleep() helper) missed three files in the conversion. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-26pppoe: use pppoe_pernet instead of directly net_genericJiri Pirko
Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-26phonet: use phonet_pernet instead of directly net_genericJiri Pirko
As in for example pppoe introduce phonet_pernet and use it instead of calling net_generic directly. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-26tg3: Fix INTx fallback when MSI failsAndre Detsch
tg3: Fix INTx fallback when MSI fails MSI setup changes the value of irq_vec in struct tg3 *tp. This attribute must be taken into account and restored before we try to do a new request_irq for INTx fallback. In powerpc, the original code was leading to an EINVAL return within request_irq, because the driver was trying to use the disabled MSI virtual irq number instead of tp->pdev->irq. Signed-off-by: Andre Detsch <adetsch@br.ibm.com> Acked-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-26net: ipmr: add support for dumping routing tables over netlinkPatrick McHardy
The ipmr /proc interface (ip_mr_cache) can't be extended to dump routes from any tables but the main table in a backwards compatible fashion since the output format ends in a variable amount of output interfaces. Introduce a new netlink interface to dump multicast routes from all tables, similar to the netlink interface for regular routes. Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-04-26net: rtnetlink: decouple rtnetlink address families from real address familiesPatrick McHardy
Decouple rtnetlink address families from real address families in socket.h to be able to add rtnetlink interfaces to code that is not a real address family without increasing AF_MAX/NPROTO. This will be used to add support for multicast route dumping from all tables as the proc interface can't be extended to support anything but the main table without breaking compatibility. This partialy undoes the patch to introduce independant families for routing rules and converts ipmr routing rules to a new rtnetlink family. Similar to that patch, values up to 127 are reserved for real address families, values above that may be used arbitrarily. Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-04-26net: fib_rules: mark arguments to fib_rules_register const and __net_initdataPatrick McHardy
fib_rules_register() duplicates the template passed to it without modification, mark the argument as const. Additionally the templates are only needed when instantiating a new namespace, so mark them as __net_initdata, which means they can be discarded when CONFIG_NET_NS=n. Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-04-25ipv6: Fix inet6_csk_bind_conflict()Eric Dumazet
Commit fda48a0d7a84 (tcp: bind() fix when many ports are bound) introduced a bug on IPV6 part. We should not call ipv6_addr_any(inet6_rcv_saddr(sk2)) but ipv6_addr_any(inet6_rcv_saddr(sk)) because sk2 can be IPV4, while sk is IPV6. Reported-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-25netns: rename unregister_pernet_subsys parameterJiri Pirko
Stay consistent with other functions and with comment also and name pernet_operations parameter properly. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-24rps: optimize rps_get_cpu()Changli Gao
optimize rps_get_cpu(). don't initialize ports when we can get the ports. one memory access for ports than two. Signed-off-by: Changli Gao <xiaosuo@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-24e100: Fix the TX workqueue raceAlan Cox
Nothing stops the workqueue being left to run in parallel with close or a few other operations. This causes double unmaps and the like. See kerneloops.org #1041230 for an example Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-24sky2: add support for receive hashingStephen Hemminger
Sky2 hardware supports hardware receive hash calculation. Now that Receive Packet Steering is available, add support to enable it. This version does not depend on CONFIG_RPS. Also set_flags rejects all values except RXHASH, so driver won't have to change next time somebody adds a new one. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-23Merge branch 'net-next-2.6_20100423a/br/br_multicast_v3' of ↵David S. Miller
git://git.linux-ipv6.org/gitroot/yoshfuji/linux-2.6-next
2010-04-23IPv6: Complete IPV6_DONTFRAG supportBrian Haley
Finally add support to detect a local IPV6_DONTFRAG event and return the relevant data to the user if they've enabled IPV6_RECVPATHMTU on the socket. The next recvmsg() will return no data, but have an IPV6_PATHMTU as ancillary data. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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