- 05 Oct, 2010 23 commits
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Eric Dumazet authored
David This is the first step for RCU conversion of neigh code. Next patches will convert hash_buckets[] and "struct neighbour" to RCU protected objects. Thanks [PATCH net-next] net neigh: RCU conversion of neigh hash table Instead of storing hash_buckets, hash_mask and hash_rnd in "struct neigh_table", a new structure is defined : struct neigh_hash_table { struct neighbour **hash_buckets; unsigned int hash_mask; __u32 hash_rnd; struct rcu_head rcu; }; And "struct neigh_table" has an RCU protected pointer to such a neigh_hash_table. This means the signature of (*hash)() function changed: We need to add a third parameter with the actual hash_rnd value, since this is not anymore a neigh_table field. Signed-off-by:Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
neigh_delete() and neigh_add() dont need to touch device refcount, we hold RTNL when calling them, so device cannot disappear under us. Signed-off-by:
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Eric Dumazet authored
In various situations, a device provides a packet to our stack and we drop it before it enters protocol stack : - softnet backlog full (accounted in /proc/net/softnet_stat) - bad vlan tag (not accounted) - unknown/unregistered protocol (not accounted) We can handle a per-device counter of such dropped frames at core level, and automatically adds it to the device provided stats (rx_dropped), so that standard tools can be used (ifconfig, ip link, cat /proc/net/dev) This is a generalization of commit 8990f468 (net: rx_dropped accounting), thus reverting it. Signed-off-by:
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David S. Miller authored
Do this instead of subverting fields in skb proper. The macros that could very easily match variable or function names were also just asking for trouble. Signed-off-by: -
stephen hemminger authored
Another exported symbol only used in one file Signed-off-by:
Stephen Hemminger <shemminger@vyatta.com> Acked-by:
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stephen hemminger authored
fib_rules_cleanup_ups is only defined and used in one place. Signed-off-by:
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Eric Dumazet authored
Code style cleanups before upcoming functional changes. C99 initializer for fib_props array. Signed-off-by:
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stephen hemminger authored
Make wimax variables and functions local if possible. Compile tested only. This also removes a couple of unused EXPORT_SYMBOL. If this breaks some out of tree code, please fix that by putting the code in the kernel tree. Signed-off-by:
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stephen hemminger authored
This driver has several pieces of dead code (found by running make namespacecheck). This patch removes them. Signed-off-by:
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Nicolas Kaiser authored
Remove duplicated include. Signed-off-by:
Nicolas Kaiser <nikai@nikai.net> Acked-by:
Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by:
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Uwe Kleine-König authored
The kernel doesn't have a symbol called BCM63XX. There is a symbol BCM63XX_ENET (introduced in 9b1fc55a, 6 weeks after 09bb9aa0 that introduced BCM63XX_PHY), but the driver compiles without that, too. Cc: Maxime Bizon <mbizon@freebox.fr> Cc: Florian Fainelli <florian@openwrt.org> Cc: David S. Miller <davem@davemloft.net> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by:
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by:
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Uwe Kleine-König authored
MODULE_DEVICE_TABLE only expands to something if it's compiled for a module. So when building-in support for the phys, the mdio_device_id tables are unused. Marking them with __maybe_unused fixes the following warnings: drivers/net/phy/bcm63xx.c:134: warning: 'bcm63xx_tbl' defined but not used drivers/net/phy/broadcom.c:933: warning: 'broadcom_tbl' defined but not used drivers/net/phy/cicada.c:162: warning: 'cicada_tbl' defined but not used drivers/net/phy/davicom.c:222: warning: 'davicom_tbl' defined but not used drivers/net/phy/et1011c.c:114: warning: 'et1011c_tbl' defined but not used drivers/net/phy/icplus.c:137: warning: 'icplus_tbl' defined but not used drivers/net/phy/lxt.c:226: warning: 'lxt_tbl' defined but not used drivers/net/phy/marvell.c:724: warning: 'marvell_tbl' defined but not used drivers/net/phy/micrel.c:234: warning: 'micrel_tbl' defined but not used drivers/net/phy/national.c:154: warning: 'ns_tbl' defined but not used drivers/net/phy/qsemi.c:141: warning: 'qs6612_tbl' defined but not used drivers/net/phy/realtek.c:82: warning: 'realtek_tbl' defined but not used drivers/net/phy/smsc.c:257: warning: 'smsc_tbl' defined but not used drivers/net/phy/ste10Xp.c:135: warning: 'ste10Xp_tbl' defined but not used drivers/net/phy/vitesse.c:195: warning: 'vitesse_tbl' defined but not used Signed-off-by:
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David S. Miller authored
rtnl_dereference() is used in contexts where RTNL is held, to fetch an RCU protected pointer. Updates to this pointer are prevented by RTNL, so we dont need smp_read_barrier_depends() and the ACCESS_ONCE() provided in rcu_dereference_check(). rtnl_dereference() is mainly a macro to document the locking invariant. Signed-off-by:
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David S. Miller authored
Signed-off-by:
Simon Horman <horms@verge.net.au>
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Eric Dumazet authored
ingress being not used very much, and net_device->ingress_queue being quite a big object (128 or 256 bytes), use a dynamic allocation if needed (tc qdisc add dev eth0 ingress ...) dev_ingress_queue(dev) helper should be used only with RTNL taken. Signed-off-by:
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Sritej Velaga authored
Setting mtu < 68 is not supported. Signed-off-by:
Sritej Velaga <sritej.velaga@qlogic.com> Signed-off-by:
Amit Kumar Salecha <amit.salecha@qlogic.com> Signed-off-by:
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Sritej Velaga authored
Port mode setting is not required for Qlogic CNA adapters. Signed-off-by:
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Sucheta Chakraborty authored
Signed-off-by:
Sucheta Chakraborty <sucheta.chakraborty@qlogic.com> Signed-off-by:
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Sucheta Chakraborty authored
o desc->vlan_tci is in __le16 format. Doing htons and cpu_to_le64 again on vlan_tci, result in invalid value on ppc. Signed-off-by:
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Sucheta Chakraborty authored
ipaddress in ifa->ifa_address field are in big endian format. Also device requires ip address in big endian only. Signed-off-by:
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Amit Kumar Salecha authored
regs_buff[i] and diag_registers[j] array should use different index variable. Signed-off-by:
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Amit Kumar Salecha authored
Some of the counters are not implemented in fw. Fw return NOT AVAILABLE VALUE as (0xffffffffffffffff). Adding these counters, result in invalid value. Signed-off-by:
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Amit Kumar Salecha authored
o Loop 10 times with delay of 1 ms to rcv packet. o Print garbage packet. o Try send/receive MAX(16) packet, instead of exit from test, if a packet is not received. Signed-off-by:
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- 04 Oct, 2010 17 commits
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David S. Miller authored
Conflicts: net/ipv4/Kconfig net/ipv4/tcp_timer.c
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Eric Dumazet authored
While doing stress tests with IP route cache disabled, and multi queue devices, I noticed a very high contention on one rwlock used in neighbour code. When many cpus are trying to send frames (possibly using a high performance multiqueue device) to the same neighbour, they fight for the neigh->lock rwlock in order to call neigh_hh_init(), and fight on hh->hh_refcnt (a pair of atomic_inc/atomic_dec_and_test()) But we dont need to call neigh_hh_init() for dst that are used only once. It costs four atomic operations at least, on two contended cache lines, plus the high contention on neigh->lock rwlock. Introduce a new dst flag, DST_NOCACHE, that is set when dst was not inserted in route cache. With the stress test bench, sending 160000000 frames on one neighbour, results are : Before patch: real 2m28.406s user 0m11.781s sys 36m17.964s After patch: real 1m26.532s user 0m12.185s sys 20m3.903s Signed-off-by:
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David S. Miller authored
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Sathya Perla authored
This patch adds multiple RX queue support to be2net. There are upto 4 extra rx-queues per port into which TCP/UDP traffic can be hashed into. Some of the ethtool stats are now displayed on a per queue basis. Signed-off-by:
Sathya Perla <sathya.perla@emulex.com> Signed-off-by:
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David S. Miller authored
Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
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Ursula Braun authored
This patch adapts qeth to handle tagged frames with VLAN-ID 0 and with or without priority information in the tag. It enables qeth to receive priority-tagged frames on a base interface, for example from z/OS, without configuring an additional VLAN interface. Signed-off-by:
Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by:
Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by:
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Dimitris Michailidis authored
Remove a bogus PCI function number check from the driver's .remove method that causes pci_release_regions not to be called for function 0 if additional functions are attached and one of them is used as primary. Signed-off-by:
Dimitris Michailidis <dm@chelsio.com> Signed-off-by:
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Julia Lawall authored
This code does not call deinit_card(card); in an error case, as done in other error-handling code in the same function. But actually, the called function init_sram can only return 0, so there is no need for the error check at all. init_sram is also given a void return type, and its single return statement at the end of the function is dropped. A simplified version of the sematic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r exists@ @r@ statement S1,S2,S3; constant C1,C2,C3; @@ *if (...) {... S1 return -C1;} ... *if (...) {... when != S1 return -C2;} ... *if (...) {... S1 return -C3;} // </smpl> Signed-off-by:
Julia Lawall <julia@diku.dk> Signed-off-by:
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Andrew Morton authored
ERROR: trailing statements should be on next line #23: FILE: drivers/net/tulip/de4x5.c:5477: + if (copy_to_user(ioc->data, tmp.lval, ioc->len)) return -EFAULT; total: 1 errors, 0 warnings, 8 lines checked ./patches/drivers-net-tulip-de4x5c-fix-copy-length-in-de4x5_ioctl.patch has style problems, please review. If any of these errors are false positives report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Dan Rosenberg <dan.j.rosenberg@gmail.com> Cc: Grant Grundler <grundler@parisc-linux.org> Cc: Jeff Mahoney <jeffm@suse.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Dan Rosenberg authored
The sctp_asoc_get_hmac() function iterates through a peer's hmac_ids array and attempts to ensure that only a supported hmac entry is returned. The current code fails to do this properly - if the last id in the array is out of range (greater than SCTP_AUTH_HMAC_ID_MAX), the id integer remains set after exiting the loop, and the address of an out-of-bounds entry will be returned and subsequently used in the parent function, causing potentially ugly memory corruption. This patch resets the id integer to 0 on encountering an invalid id so that NULL will be returned after finishing the loop if no valid ids are found. Signed-off-by:
Dan Rosenberg <drosenberg@vsecurity.com> Acked-by:
Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by:
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Dan Rosenberg authored
Two user-controlled allocations in SCTP are subsequently dereferenced as sockaddr structs, without checking if the dereferenced struct members fall beyond the end of the allocated chunk. There doesn't appear to be any information leakage here based on how these members are used and additional checking, but it's still worth fixing. [akpm@linux-foundation.org: remove unfashionable newlines, fix gmail tab->space conversion] Signed-off-by:
Dan Rosenberg <dan.j.rosenberg@gmail.com> Acked-by:
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David Stevens authored
A recent patch to allow IGMPv2 responses to IGMPv3 queries bypasses length checks for valid query lengths, incorrectly resets the v2_seen timer, and does not support IGMPv1. The following patch responds with a v2 report as required by IGMPv2 while correcting the other problems introduced by the patch. Signed-Off-By:
David L Stevens <dlstevens@us.ibm.com> Signed-off-by:
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Eric Dumazet authored
Various code style cleanups Signed-off-by:
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Eric Dumazet authored
Use RCU & RTNL protection for mfc_cache_array[] ipmr_cache_find() is called under rcu_read_lock(); Signed-off-by:
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Eric Dumazet authored
Use RCU and RTNL to protect (struct mr_table)->mroute_sk Readers use RCU, writers use RTNL. ip_ra_control() already use an RCU grace period before ip_ra_destroy_rcu(), so we dont need synchronize_rcu() in mrtsock_destruct() Signed-off-by:
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Eric Dumazet authored
No need to get a reference on reg_dev and release it, we are in a rcu_read_lock() protected section. Signed-off-by:
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stephen hemminger authored
This table is only used in gre.c Signed-off-by:
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