- 18 3月, 2010 10 次提交
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由 Jan Engelhardt 提交于
ENOMEM is a very obvious error code (cf. EINVAL), so I think we do not really need a warning message. Not to mention that if the allocation fails, the user is most likely going to get a stack trace from slab already. Signed-off-by: NJan Engelhardt <jengelh@medozas.de>
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由 Jan Engelhardt 提交于
This will save one full padding chunk (8 bytes on x86_64) per target. Signed-off-by: NJan Engelhardt <jengelh@medozas.de>
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由 Jan Engelhardt 提交于
This member is taking up a "long" per match, yet is only used by one module out of the roughly 90 modules, ip6t_hbh. ip6t_hbh can be restructured a little to accomodate for the lack of the .data member. This variant uses checking the par->match address, which should avoid having to add two extra functions, including calls, i.e. (hbh_mt6: call hbhdst_mt6(skb, par, NEXTHDR_OPT), dst_mt6: call hbhdst_mt6(skb, par, NEXTHDR_DEST)) Signed-off-by: NJan Engelhardt <jengelh@medozas.de>
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由 Jan Engelhardt 提交于
Signed-off-by: NJan Engelhardt <jengelh@medozas.de>
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由 Jan Engelhardt 提交于
The matches can have .family = NFPROTO_UNSPEC, and though that is not the case for the touched modules, it seems better to just use the nfproto from the caller. Signed-off-by: NJan Engelhardt <jengelh@medozas.de>
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由 Jan Engelhardt 提交于
Restore alphabetical ordering of the list and put the xt_osf option into its 'right' place again. Signed-off-by: NJan Engelhardt <jengelh@medozas.de>
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由 Jan Engelhardt 提交于
I do not see a point of allowing the MAC module to work with devices that don't possibly have one, e.g. various tunnel interfaces such as tun and sit. Signed-off-by: NJan Engelhardt <jengelh@medozas.de>
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由 Jan Engelhardt 提交于
Signed-off-by: NJan Engelhardt <jengelh@medozas.de>
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由 Jan Engelhardt 提交于
XT_ALIGN is already applied on matchsize/targetsize in x_tables.c, so it is not strictly needed in the extensions. Signed-off-by: NJan Engelhardt <jengelh@medozas.de>
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由 Patrick McHardy 提交于
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- 17 3月, 2010 30 次提交
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由 Zhitong Wang 提交于
Remove unused headers in net/netfilter/nfnetlink.c Signed-off-by: NZhitong Wang <zhitong.wangzt@alibaba-inc.com> Signed-off-by: NPatrick McHardy <kaber@trash.net>
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由 Tim Gardner 提交于
Signed-off-by: NTim Gardner <tim.gardner@canonical.com> Signed-off-by: NPatrick McHardy <kaber@trash.net>
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由 Tim Gardner 提交于
One of the problems with the way xt_recent is implemented is that there is no efficient way to remove expired entries. Of course, one can write a rule '-m recent --remove', but you have to know beforehand which entry to delete. This commit adds reaper logic which checks the head of the LRU list when a rule is invoked that has a '--seconds' value and XT_RECENT_REAP set. If an entry ceases to accumulate time stamps, then it will eventually bubble to the top of the LRU list where it is then reaped. Signed-off-by: NTim Gardner <tim.gardner@canonical.com> Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NPatrick McHardy <kaber@trash.net>
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由 Jan Engelhardt 提交于
The compat option was introduced in October 2008. Signed-off-by: NJan Engelhardt <jengelh@medozas.de>
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由 Jan Engelhardt 提交于
It had IPv6 for quite a while already :-) Signed-off-by: NJan Engelhardt <jengelh@medozas.de>
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由 Jan Engelhardt 提交于
Cc: Kuo-Lang Tseng <kuo-lang.tseng@intel.com> Signed-off-by: NJan Engelhardt <jengelh@medozas.de>
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由 Jan Engelhardt 提交于
Signed-off-by: NJan Engelhardt <jengelh@medozas.de>
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由 Jan Engelhardt 提交于
It is being superseded by xt_CT (-j CT --notrack). Signed-off-by: NJan Engelhardt <jengelh@medozas.de>
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由 Jan Engelhardt 提交于
Signed-off-by: NJan Engelhardt <jengelh@medozas.de>
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由 Jan Engelhardt 提交于
Two arguments for combining the two: - xt_mark is pretty useless without xt_MARK - the actual code is so small anyway that the kmod metadata and the module in its loaded state totally outweighs the combined actual code size. i586-before: -rw-r--r-- 1 jengelh users 3821 Feb 10 01:01 xt_MARK.ko -rw-r--r-- 1 jengelh users 2592 Feb 10 00:04 xt_MARK.o -rw-r--r-- 1 jengelh users 3274 Feb 10 01:01 xt_mark.ko -rw-r--r-- 1 jengelh users 2108 Feb 10 00:05 xt_mark.o text data bss dec hex filename 354 264 0 618 26a xt_MARK.o 223 176 0 399 18f xt_mark.o And the runtime size is like 14 KB. i586-after: -rw-r--r-- 1 jengelh users 3264 Feb 18 17:28 xt_mark.o Signed-off-by: NJan Engelhardt <jengelh@medozas.de>
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由 Jan Engelhardt 提交于
Signed-off-by: NJan Engelhardt <jengelh@medozas.de>
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由 Jan Engelhardt 提交于
Signed-off-by: NJan Engelhardt <jengelh@medozas.de>
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由 Jan Engelhardt 提交于
Signed-off-by: NJan Engelhardt <jengelh@medozas.de>
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由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Joe Perches 提交于
Convert DPRINTK, commonly used for debugging, to netif_<level> Remove #define PFX Use #define pr_fmt Consistently use no periods for non-sentence logging messages Signed-off-by: NJoe Perches <joe@perches.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Jason Gunthorpe 提交于
IEEE 802.3ae clause 45 specifies a somewhat modified MDIO protocol for use by 10GIGE phys. The main change is a 21 bit address split into a 5 bit device ID and a 16 bit register offset. The definition is designed so that normal and extended devices can run on the same MDIO bus. Extend mdio-bitbang to do the new protocol. At the MDIO bus level the protocol is requested by or'ing MII_ADDR_C45 into the register offset. Make phy_read/phy_write/etc pass a full 32 bit register offset. This does not attempt to make the phy layer support C45 style PHYs, just to provide the MDIO bus support. Tested against a Broadcom 10GE phy with ID 0x206034, and several Broadcom 10/100/1000 Phys in normal mode. Signed-off-by: NJason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Rafael J. Wysocki 提交于
Use the PCI runtime power management framework to add basic PCI runtime PM support to the e1000e driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. [This feature is disabled until the user space enables it with the help of the /sys/devices/.../power/contol device attribute.] Based on a patch from Matthew Garrett. Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Rafael J. Wysocki 提交于
Use the PCI runtime power management framework to add basic PCI runtime PM support to the r8169 driver. Namely, make the driver suspend the device when the link is not present and set it up for generating a wakeup event after the link has been detected again. [This feature is disabled until the user space enables it with the help of the /sys/devices/.../power/contol device attribute.] Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Jiri Pirko 提交于
In mlx4, using char * to store mc address in private structure instead. Signed-off-by: NJiri Pirko <jpirko@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Joe Perches 提交于
I'm not sure this is correct. It changes logging macros from: dev_<level>(&ks->spidev->dev, to netdev_<level>(ks->netdev, Comments? Use netdev_<level> Use netif_<level> Use pr_<level> Add #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt Add missing line to message in ks8851_remove Change kmalloc/memset(,0) to kzalloc Remove ks_<level> macros Consolidation code into set_media_state Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Neil Horman 提交于
Forward port commit fc477e160af086f6e30c3d4fdf5f5c000d29beb5 from git://tipc.cslab.ericsson.net/pub/git/people/allan/tipc.git Origional commit message: Allow retransmission of cloned buffers This patch fixes an issue with TIPC's message retransmission logic that prevented retransmission of clone sk_buffs. Originally intended as a means of avoiding wasted work in retransmitting messages that were still on the driver's outbound queue, it also prevented TIPC from retransmitting messages through other means -- such as the secondary bearer of the broadcast link, or another interface in a set of bonded interfaces. This fix removes existing checks for cloned sk_buffs that prevented such retransmission. Origionally-Signed-off-by: NAllan Stephens <allan.stephens@windriver.com> Signed-off-by: NNeil Horman <nhorman@tuxdriver.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Neil Horman 提交于
Forward port commit 29eb572941501c40ac6e62dbc5043bf9ee76ee56 from git://tipc.cslab.ericsson.net/pub/git/people/allan/tipc.git Origional commit message: Increase frequency of load distribution over broadcast link This patch enhances the behavior of TIPC's broadcast link so that it alternates between redundant bearers (if available) after every message sent, rather than after every 10 messages. This change helps to speed up delivery of retransmitted messages by ensuring that they are not sent repeatedly over a bearer that is no longer working, but not yet recognized as failed. Tested by myself in the latest net-2.6 tree using the tipc sanity test suite Origionally-signed-off-by: NAllan Stephens <allan.stephens@windriver.com> Signed-off-by: NNeil Horman <nhorman@tuxdriver.com> bcast.c | 35 ++++++++++++++--------------------- 1 file changed, 14 insertions(+), 21 deletions(-) Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Jan Engelhardt 提交于
`ip -s link` shows interface counters truncated to 32 bit. This is because interface statistics are transported only in 32-bit quantity to userspace. This commit adds a new IFLA_STATS64 attribute that exports them in full 64 bit. References: http://lkml.indiana.edu/hypermail/linux/kernel/0307.3/0215.htmlSigned-off-by: NJan Engelhardt <jengelh@medozas.de> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Jan Engelhardt 提交于
Signed-off-by: NJan Engelhardt <jengelh@medozas.de> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Jan Engelhardt 提交于
Signed-off-by: NJan Engelhardt <jengelh@medozas.de> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
We hold RTNL at this point and dont use RCU variants of list traversals, we dont need rcu_read_lock()/rcu_read_unlock() Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 stephen hemminger 提交于
The shared packet statistics are a potential source of slow down on bridged traffic. Convert to per-cpu array, but only keep those statistics which change per-packet. Signed-off-by: NStephen Hemminger <shemminger@vyatta.com> Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Tom Herbert 提交于
This patch implements software receive side packet steering (RPS). RPS distributes the load of received packet processing across multiple CPUs. Problem statement: Protocol processing done in the NAPI context for received packets is serialized per device queue and becomes a bottleneck under high packet load. This substantially limits pps that can be achieved on a single queue NIC and provides no scaling with multiple cores. This solution queues packets early on in the receive path on the backlog queues of other CPUs. This allows protocol processing (e.g. IP and TCP) to be performed on packets in parallel. For each device (or each receive queue in a multi-queue device) a mask of CPUs is set to indicate the CPUs that can process packets. A CPU is selected on a per packet basis by hashing contents of the packet header (e.g. the TCP or UDP 4-tuple) and using the result to index into the CPU mask. The IPI mechanism is used to raise networking receive softirqs between CPUs. This effectively emulates in software what a multi-queue NIC can provide, but is generic requiring no device support. Many devices now provide a hash over the 4-tuple on a per packet basis (e.g. the Toeplitz hash). This patch allow drivers to set the HW reported hash in an skb field, and that value in turn is used to index into the RPS maps. Using the HW generated hash can avoid cache misses on the packet when steering it to a remote CPU. The CPU mask is set on a per device and per queue basis in the sysfs variable /sys/class/net/<device>/queues/rx-<n>/rps_cpus. This is a set of canonical bit maps for receive queues in the device (numbered by <n>). If a device does not support multi-queue, a single variable is used for the device (rx-0). Generally, we have found this technique increases pps capabilities of a single queue device with good CPU utilization. Optimal settings for the CPU mask seem to depend on architectures and cache hierarcy. Below are some results running 500 instances of netperf TCP_RR test with 1 byte req. and resp. Results show cumulative transaction rate and system CPU utilization. e1000e on 8 core Intel Without RPS: 108K tps at 33% CPU With RPS: 311K tps at 64% CPU forcedeth on 16 core AMD Without RPS: 156K tps at 15% CPU With RPS: 404K tps at 49% CPU bnx2x on 16 core AMD Without RPS 567K tps at 61% CPU (4 HW RX queues) Without RPS 738K tps at 96% CPU (8 HW RX queues) With RPS: 854K tps at 76% CPU (4 HW RX queues) Caveats: - The benefits of this patch are dependent on architecture and cache hierarchy. Tuning the masks to get best performance is probably necessary. - This patch adds overhead in the path for processing a single packet. In a lightly loaded server this overhead may eliminate the advantages of increased parallelism, and possibly cause some relative performance degradation. We have found that masks that are cache aware (share same caches with the interrupting CPU) mitigate much of this. - The RPS masks can be changed dynamically, however whenever the mask is changed this introduces the possibility of generating out of order packets. It's probably best not change the masks too frequently. Signed-off-by: NTom Herbert <therbert@google.com> include/linux/netdevice.h | 32 ++++- include/linux/skbuff.h | 3 + net/core/dev.c | 335 +++++++++++++++++++++++++++++++++++++-------- net/core/net-sysfs.c | 225 ++++++++++++++++++++++++++++++- net/core/skbuff.c | 2 + 5 files changed, 538 insertions(+), 59 deletions(-) Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Tina Yang 提交于
Create per-cpu workqueue threads instead of a single krdsd thread. This is a step towards better scalability. Signed-off-by: NAndy Grover <andy.grover@oracle.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Andy Grover 提交于
set_page_dirty() unconditionally re-enables interrupts, so if we call it with irqs off, they will be on after the call, and that's bad. This patch moves the call after we've re-enabled interrupts in send_drop_to(), so it's safe. Also, add BUG_ONs to let us know if we ever do call set_page_dirty with interrupts off. Signed-off-by: NAndy Grover <andy.grover@oracle.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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