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2010-10-03ipmr: __pim_rcv() is called under rcu_read_lockEric Dumazet
No need to get a reference on reg_dev and release it, we are in a rcu_read_lock() protected section. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-03gre: protocol table can be staticstephen hemminger
This table is only used in gre.c Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-01enic: Update MAINTAINERSVasanthy Kolluri
Update MAINTAINERS list Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com> Signed-off-by: Roopa Prabhu <roprabhu@cisco.com> Signed-off-by: David Wang <dwang2@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-01enic: Make local functions staticVasanthy Kolluri
Make functions used locally in a file as static Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com> Signed-off-by: Roopa Prabhu <roprabhu@cisco.com> Signed-off-by: David Wang <dwang2@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-01enic: Remove dead codeVasanthy Kolluri
Removed code that is unused Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com> Signed-off-by: Roopa Prabhu <roprabhu@cisco.com> Signed-off-by: David Wang <dwang2@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-01neigh: reorder fields in struct neighbourEric Dumazet
On 64bit arches, there are two 32bit holes that we can remove. sizeof(struct neighbour) shrinks from 0xf8 to 0xf0 bytes Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-01isdn/gigaset: improve bas_gigaset USB error reportingTilman Schmidt
Rephrase some USB error messages to make them clearer and more consistent. Downgrade some warning messages that may occur during normal operation to debug messages. Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-01isdn/gigaset: fix bas_gigaset interrupt read error handlingTilman Schmidt
Rework the handling of USB errors in interrupt input reads to clear halts correctly, delay URB resubmission after errors, limit retries, and improve error recovery. Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-01isdn/gigaset: unclog bas_gigaset AT response pipeTilman Schmidt
Recover from a lost HD_RECEIVEATDATA_ACK message by sending a zero-length HD_READ_ATMESSAGE command when ev_layer sends "+++". Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-01isdn/gigaset: try USB reset for bas_gigaset error recoveryTilman Schmidt
In error_reset(), if sending HD_RESET_INTERRUPT_PIPE to the device fails, try performing an USB reset. Also correct an error in the leading comment. Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-01isdn/gigaset: bas_gigaset timer cleanupTilman Schmidt
Use setup_timer() and mod_timer() instead of direct assignment to timer structure members, simplify the argument of one timer routine, and make extra sure all timers are stopped during suspend. Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-01isdn/gigaset: drop obsolete debug optionTilman Schmidt
Remove the debug flag DEBUG_DRIVER and associated code. It doesn't serve any useful purpose anymore. Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-01isdn/gigaset: correct bas_gigaset rx buffer handlingTilman Schmidt
In transparent data reception, avoid a NULL pointer dereference in case an skbuff cannot be allocated, remove an inappropriate call to the HDLC flush routine, and correct the accounting of received bytes for continued buffers. Signed-off-by: Tilman Schmidt <tilman@imap.cc> CC: stable <stable@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-01isdn/gigaset: fix bas_gigaset AT read error handlingTilman Schmidt
Rework the handling of USB errors in AT response reads to fix a possible infinite retry loop and a memory leak, and silence a few overly verbose kernel messages. Signed-off-by: Tilman Schmidt <tilman@imap.cc> CC: stable <stable@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-01isdn/gigaset: bas_gigaset locking fixTilman Schmidt
Unlock cs->lock before calling error_hangup() which is marked "cs->lock must not be held". Signed-off-by: Tilman Schmidt <tilman@imap.cc> CC: stable <stable@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-01tg3: Update version to 3.114Matt Carlson
This patch updates the tg3 version to 3.114. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-01tg3: Add extend rx ring sizes for 5717 and 5719Matt Carlson
This patch increases the rx ring sizes for those asic revs that support them. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-01tg3: Prepare for larger rx ring sizesMatt Carlson
This patch adds two new variables to track the size of the standard and jumbo rx producer ring sizes. The code is then pivoted to these variables from preprocessor constants. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-01tg3: Futureproof the loopback testMatt Carlson
There are other multiqueue modes 5717 and 5719 devices can assume. This patch makes sure that the loopback test is safe, should those other modes be enabled in the future. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-01tg3: Cleanup missing VPD partno sectionMatt Carlson
This patch cleans up the default VPD partno section. New entries for 5717 asic rev devices were also added. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-01tg3: Remove 5724 device IDMatt Carlson
This product was never released to the public. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-01tg3: 5719: Prevent tx data corruptionMatt Carlson
This patch enables a bit that prevents read DMA overflows and adjusts the txmbuf margin from the hardware default. The combination of these modifications prevents a tx data corruption issue we were seeing on the 5719. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-01tg3: Fix potential netpoll crashMatt Carlson
Up until now the tg3 driver would call netif_napi_add() for the maximum number of NAPI instances the driver could use. The problem is that netpoll could call tg3_poll() on instances that are not active. The net effect is that the driver will crash attempting to dereference uninitialized pointers. The fix is to only allocate as many NAPI instances as the driver would use in tg3_open() and deleted them in tg3_close(). Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-30ipv4: rcu conversion in ip_route_output_slowEric Dumazet
ip_route_output_slow() is enclosed in an rcu_read_lock() protected section, so that no references are taken/released on device, thanks to __ip_dev_find() & dev_get_by_index_rcu() Tested with ip route cache disabled, and a stress test : Before patch: elapsed time : real 1m38.347s user 0m11.909s sys 23m51.501s Profile: 13788.00 22.7% ip_route_output_slow [kernel] 7875.00 13.0% dst_destroy [kernel] 3925.00 6.5% fib_semantic_match [kernel] 3144.00 5.2% fib_rules_lookup [kernel] 3061.00 5.0% dst_alloc [kernel] 2276.00 3.7% rt_set_nexthop [kernel] 1762.00 2.9% fib_table_lookup [kernel] 1538.00 2.5% _raw_read_lock [kernel] 1358.00 2.2% ip_output [kernel] After patch: real 1m28.808s user 0m13.245s sys 20m37.293s 10950.00 17.2% ip_route_output_slow [kernel] 10726.00 16.9% dst_destroy [kernel] 5170.00 8.1% fib_semantic_match [kernel] 3937.00 6.2% dst_alloc [kernel] 3635.00 5.7% rt_set_nexthop [kernel] 2900.00 4.6% fib_rules_lookup [kernel] 2240.00 3.5% fib_table_lookup [kernel] 1427.00 2.2% _raw_read_lock [kernel] 1157.00 1.8% kmem_cache_alloc [kernel] Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-30ipv4: introduce __ip_dev_find()Eric Dumazet
ip_dev_find(net, addr) finds a device given an IPv4 source address and takes a reference on it. Introduce __ip_dev_find(), taking a third argument, to optionally take the device reference. Callers not asking the reference to be taken should be in an rcu_read_lock() protected section. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-30e1000e: 82579 performance improvementsBruce Allan
The initial support for 82579 was tuned poorly for performance. Adjust the packet buffer allocation appropriately for both standard and jumbo frames; and for jumbo frames increase the receive descriptor pre-fetch, disable adaptive interrupt moderation and set the DMA latency tolerance. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-30e1000e: use hardware writeback batchingJesse Brandeburg
Most e1000e parts support batching writebacks. The problem with this is that when some of the TADV or TIDV timers are not set, Tx can sit forever. This is solved in this patch with write flushes using the Flush Partial Descriptors (FPD) bit in TIDV and RDTR. This improves bus utilization and removes partial writes on e1000e, particularly from 82571 parts in S5500 chipset based machines. Only ES2LAN and 82571/2 parts are included in this optimization, to reduce testing load. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-30ixgbe: fix link issues and panic with shared interrupts for 82598Emil Tantilov
Fix possible panic/hang with shared Legacy interrupts by not enabling interrupts when interface is down. Also fixes an intermittent link by enabling LSC upon exit from ixgbe_intr() This patch adds flags to ixgbe_irq_enable() to allow for some flexibility when enabling interrupts. Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Stephen Ko <stephen.s.ko@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-30ipv4: __mkroute_output() speedupEric Dumazet
While doing stress tests with a disabled IP route cache, I found __mkroute_output() was touching three times in_device atomic refcount. Use RCU to touch it once to reduce cache line ping pongs. Before patch time to perform the test real 1m42.009s user 0m12.545s sys 25m0.726s Profile : 16109.00 26.4% ip_route_output_slow vmlinux 7434.00 12.2% dst_destroy vmlinux 3280.00 5.4% fib_rules_lookup vmlinux 3252.00 5.3% fib_semantic_match vmlinux 2622.00 4.3% fib_table_lookup vmlinux 2535.00 4.1% dst_alloc vmlinux 1750.00 2.9% _raw_read_lock vmlinux 1532.00 2.5% rt_set_nexthop vmlinux After patch real 1m36.503s user 0m12.977s sys 23m25.608s 14234.00 22.4% ip_route_output_slow vmlinux 8717.00 13.7% dst_destroy vmlinux 4052.00 6.4% fib_rules_lookup vmlinux 3951.00 6.2% fib_semantic_match vmlinux 3191.00 5.0% dst_alloc vmlinux 1764.00 2.8% fib_table_lookup vmlinux 1692.00 2.7% _raw_read_lock vmlinux 1605.00 2.5% rt_set_nexthop vmlinux Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-30Phonet: restore flow control credits when sending failsRémi Denis-Courmont
This patch restores the below flow control patch submitted by Rémi Denis-Courmont, which accidentaly got lost due to Pipe controller patch on Phonet. commit 1a98214feef2221cd7c24b17cd688a5a9d85b2ea Author: Rémi Denis-Courmont <remi.denis-courmont@nokia.com> Date: Mon Aug 30 12:57:03 2010 +0000 Phonet: restore flow control credits when sending fails Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Kumar Sanghvi <kumar.sanghvi@stericsson.com> Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-30net: pxa168_etc.c recognize additional contributorsPhilip Rakity
Signed-off-by: Philip Rakity <prakity@marvell.com> Signed-off-by: Sachin Sanap <ssanap@marvell.com> Signed-off-by: Mark Brown <markb@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-29ip_gre: comments changeEric Dumazet
HARD_TX_LOCK no longer protects tunnels from dead loops, but xmit_recursion percpu counter. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-29de2104x: remove experimental statusOndrej Zary
It should be ready after 8 years...remove the experimental dependency. Signed-off-by: Ondrej Zary <linux@rainbow-software.org> Acked-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-29de2104x: disable media debug messages by defaultOndrej Zary
Print media debug messages only when HW debug is enabled. Signed-off-by: Ondrej Zary <linux@rainbow-software.org> Acked-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-29myri10ge: DCA update (resubmit)Andrew Gallatin
This patch contains the following DCA improvements to myri10ge: 1) Finally move myri10ge to use dca3 API 2) Disable PCIe relaxed ordering when enabling DCA on myri10ge. This provides a performance boost on Nehalem based Xeons 3) Make sure to properly initialize NIC's DCA state when it is enabled, rather than giving the NIC a bogus tag (0) and waiting for the first received packet to trigger an update. Not using a real tag can cause hardware exceptions on some motherboards when a CPU socket is empty. 3) Always update the cached CPU when our interrupt affinity changes so as to avoid excessive calls to dca3_get_tag() Signed-off-by: Andrew Gallatin <gallatin@myri.com> Signed-off-by: Loic Prylli <loic@myri.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-29bnx2x: Moved enabling of MSI to the bnx2x_set_num_queues()Dmitry Kravkov
Moved enabling of MSI to the bnx2x_set_num_queues() - the same functions that handles the initialization of the MSI-X. From: Vladislav Zolotarov <vladz@broadcom.com> Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Vladislav Zolotarov <vladz@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-29tcp: tcp_enter_quickack_mode can be staticstephen hemminger
Function only used in tcp_input.c Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-29arp: remove unnecessary export of arp_broken_opsstephen hemminger
arp_broken_ops is only used in arp.c Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-29net: rename netdev rx_queue to ingress_queueEric Dumazet
There is some confusion with rx_queue name after RPS, and net drivers private rx_queue fields. I suggest to rename "struct net_device"->rx_queue to ingress_queue. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-29ip6tnl: percpu stats accountingEric Dumazet
Maintain per_cpu tx_bytes, tx_packets, rx_bytes, rx_packets. Other seldom used fields are kept in netdev->stats structure, possibly unsafe. This is a preliminary work to support lockless transmit path, and correct RX stats, that are already unsafe. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-29ipip: enable lockless xmitsEric Dumazet
IPIP tunnels can benefit from lockless xmits, using NETIF_F_LLTX Bench on a 16 cpus machine (dual E5540 cpus), 16 threads sending 10000000 UDP frames via one ipip tunnel (size:200 bytes per frame) Before patch : real 2m53.321s user 0m10.277s sys 46m0.597s After patch: real 0m32.063s user 0m9.237s sys 8m16.255s Last problem to solve is the contention on dst : 16118.00 28.3% __ip_route_output_key vmlinux 6135.00 10.8% dst_release vmlinux 3220.00 5.6% ip_finish_output vmlinux 2149.00 3.8% ip_route_output_flow vmlinux 1575.00 2.8% ip_append_data vmlinux 1481.00 2.6% ip_push_pending_frames vmlinux 1349.00 2.4% __xfrm_lookup vmlinux 1216.00 2.1% csum_partial_copy_generic vmlinux 1208.00 2.1% udp_sendmsg vmlinux Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-29ip_gre: lockless xmitEric Dumazet
GRE tunnels can benefit from lockless xmits, using NETIF_F_LLTX Note: If tunnels are created with the "oseq" option, LLTX is not enabled : Even using an atomic_t o_seq, we would increase chance for packets being out of order at receiver. Bench on a 16 cpus machine (dual E5540 cpus), 16 threads sending 10000000 UDP frames via one gre tunnel (size:200 bytes per frame) Before patch : real 3m0.094s user 0m9.365s sys 47m50.103s After patch: real 0m29.756s user 0m11.097s sys 7m33.012s Last problem to solve is the contention on dst : 38660.00 21.4% __ip_route_output_key vmlinux 20786.00 11.5% dst_release vmlinux 14191.00 7.8% __xfrm_lookup vmlinux 12410.00 6.9% ip_finish_output vmlinux 4540.00 2.5% ip_push_pending_frames vmlinux 4427.00 2.4% ip_append_data vmlinux 4265.00 2.4% __alloc_skb vmlinux 4140.00 2.3% __ip_local_out vmlinux 3991.00 2.2% dev_queue_xmit vmlinux Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-29sit: enable lockless xmitsEric Dumazet
SIT tunnels can benefit from lockless xmits, using NETIF_F_LLTX Bench on a 16 cpus machine (dual E5540 cpus), 16 threads sending 10000000 UDP frames via one sit tunnel (size:220 bytes per frame) Before patch : real 3m15.399s user 0m9.185s sys 51m55.403s 75029.00 87.5% _raw_spin_lock vmlinux 1090.00 1.3% dst_release vmlinux 902.00 1.1% dev_queue_xmit vmlinux 627.00 0.7% sock_wfree vmlinux 613.00 0.7% ip6_push_pending_frames ipv6.ko 505.00 0.6% __ip_route_output_key vmlinux After patch: real 1m1.387s user 0m12.489s sys 15m58.868s 28239.00 23.3% dst_release vmlinux 13570.00 11.2% ip6_push_pending_frames ipv6.ko 13118.00 10.8% ip6_append_data ipv6.ko 7995.00 6.6% __ip_route_output_key vmlinux 7924.00 6.5% sk_dst_check vmlinux 5015.00 4.1% udpv6_sendmsg ipv6.ko 3594.00 3.0% sock_alloc_send_pskb vmlinux 3135.00 2.6% sock_wfree vmlinux 3055.00 2.5% ip6_sk_dst_lookup ipv6.ko 2473.00 2.0% ip_finish_output vmlinux Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-29sit: fix percpu stats accountingEric Dumazet
commit 15fc1f7056ebd (sit: percpu stats accounting) forgot the fallback tunnel case (sit0), and can crash pretty fast. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-29ipip: fix percpu stats accountingEric Dumazet
commit 3c97af99a5aa1 (ipip: percpu stats accounting) forgot the fallback tunnel case (tunl0), and can crash pretty fast. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-29dummy: percpu stats and lockless xmitEric Dumazet
Converts dummy network device driver to : - percpu stats - 64bit stats - lockless xmit (NETIF_F_LLTX) - performance features added (NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_TSO | NETIF_F_NO_CSUM | NETIF_F_HIGHDMA) Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-29net: add a recursion limit in xmit pathEric Dumazet
As tunnel devices are going to be lockless, we need to make sure a misconfigured machine wont enter an infinite loop. Add a percpu variable, and limit to three the number of stacked xmits. Reported-by: Jesse Gross <jesse@nicira.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-28ipv6: Implement Any-IP support for IPv6.Maciej Żenczykowski
AnyIP is the capability to receive packets and establish incoming connections on IPs we have not explicitly configured on the machine. An example use case is to configure a machine to accept all incoming traffic on eth0, and leave the policy of whether traffic for a given IP should be delivered to the machine up to the load balancer. Can be setup as follows: ip -6 rule from all iif eth0 lookup 200 ip -6 route add local default dev lo table 200 (in this case for all IPv6 addresses) Signed-off-by: Maciej Żenczykowski <maze@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-28ipv4: Allow configuring subnets as local addressesTom Herbert
This patch allows a host to be configured to respond to any address in a specified range as if it were local, without actually needing to configure the address on an interface. This is done through routing table configuration. For instance, to configure a host to respond to any address in 10.1/16 received on eth0 as a local address we can do: ip rule add from all iif eth0 lookup 200 ip route add local 10.1/16 dev lo proto kernel scope host src 127.0.0.1 table 200 This host is now reachable by any 10.1/16 address (route lookup on input for packets received on eth0 can find the route). On output, the rule will not be matched so that this host can still send packets to 10.1/16 (not sent on loopback). Presumably, external routing can be configured to make sense out of this. To make this work, we needed to modify the logic in finding the interface which is assigned a given source address for output (dev_ip_find). We perform a normal fib_lookup instead of just a lookup on the local table, and in the lookup we ignore the input interface for matching. This patch is useful to implement IP-anycast for subnets of virtual addresses. Signed-off-by: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-28pch_gbe: add header filesRandy Dunlap
Fix build errors, more header files needed. drivers/net/pch_gbe/pch_gbe_main.c:965: error: implicit declaration of function 'tcp_hdr' drivers/net/pch_gbe/pch_gbe_main.c:965: error: invalid type argument of '->' (have 'int') drivers/net/pch_gbe/pch_gbe_main.c:968: error: invalid type argument of '->' (have 'int') drivers/net/pch_gbe/pch_gbe_main.c:976: error: implicit declaration of function 'udp_hdr' drivers/net/pch_gbe/pch_gbe_main.c:976: error: invalid type argument of '->' (have 'int') drivers/net/pch_gbe/pch_gbe_main.c:980: error: invalid type argument of '->' (have 'int') Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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