- 05 Jun, 2010 5 commits
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Alexander Duyck authored
We can avoid an unecessary cache miss by checking if the skb is non-linear before accessing gso_size/gso_type in skb_warn_if_lro, the same can also be done to avoid a cache miss on nr_frags if data_len is 0. 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>
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Rami Rosen authored
Hi, __pppoe_xmit() in drivers/net/pppoe always returns 1. When the methods fails (via goto abort), it should return 0 and not 1. Regards, Rami Rosen Signed-off-by:
Rami Rosen <ramirose@gmail.com> Signed-off-by:
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Florian Westphal authored
- ipv6 msstab: account for ipv6 header size - ipv4 msstab: add mss for Jumbograms. Signed-off-by:
Florian Westphal <fw@strlen.de> Signed-off-by:
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Florian Westphal authored
caller: if (!th->rst && !th->syn && th->ack) callee: if (!th->ack) make the caller only check for !syn (common for 3whs), and move the !rst / ack test to the callee. Signed-off-by:
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Florian Westphal authored
both syn_flood_warning functions print a message, but ipv4 version only prints a warning if CONFIG_SYN_COOKIES=y. Make the v4 one behave like the v6 one. Signed-off-by:
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- 04 Jun, 2010 5 commits
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Anirban Chakraborty authored
Original code was placed incorrectly inside a block of code marked with CONFIG_INET directive. Fix by moving it outside. Signed-off-by:
Anirban Chakraborty <anirban.chakraborty@qlogic.com> Reported-by:
Randy Dunlap <randy.dunlap@oracle.com> Tested-by:
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Eric Dumazet authored
From: Eric Dumazet <eric.dumazet@gmail.com> Date: Thu, 3 Jun 2010 04:29:41 +0000 Subject: [PATCH 2/3] net: net/socket.c and net/compat.c cleanups cleanup patch, to match modern coding style. Signed-off-by:
Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by:
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Emil Tantilov authored
This patch is alternative to a previous patch submitted by Joe Perches. Create common macros e_<level> and e_dev_<level> that use netdev_<level> and dev_<level> similar to e1000e. Redefined pr_fmt for driver messages. Use %pM to display MAC address. Aligned text to better match the new format. CC: Joe Perches <joe@perches.com> Signed-off-by:
Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by:
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Eric Dumazet authored
Avoid two atomic ops in arp_fwd_proxy() Avoid two atomic ops in arp_process() Valid optims since arp_rcv() is run under rcu_read_lock() Signed-off-by:
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Eric Dumazet authored
Avoid two atomic ops on output device refcount Signed-off-by:
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- 03 Jun, 2010 9 commits
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Eric Dumazet authored
cleanup patch. Use new __packed annotation in net/ and include/ (except netfilter) Signed-off-by:
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Eric Dumazet authored
cleanup patch. Use new __packed annotation in drivers/net/ Signed-off-by:
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Denis Kirjanov authored
Cleanup PHY probing: use helpers from phylib Signed-off-by:
Denis Kirjanov <dkirjanov@kernel.org> Signed-off-by:
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Denis Kirjanov authored
Convert TX hook return value to netdev_tx_t Signed-off-by:
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Geert Uytterhoeven authored
commit 5c7fffd0 ("drivers/net/mac8390.c: Remove useless memcpy casting") removed too many casts, introducing the following warnings: | drivers/net/mac8390.c:248: warning: passing argument 1 of '__builtin_memcpy' makes pointer from integer without a cast | drivers/net/mac8390.c:253: warning: passing argument 1 of 'word_memcpy_tocard' makes pointer from integer without a cast | drivers/net/mac8390.c:255: warning: passing argument 2 of 'word_memcpy_fromcard' makes pointer from integer without a cast Instead of just readding the casts, - move all casts inside word_memcpy_{to,from}card(), - replace an incorrect memcpy() by memcpy_toio(), - add memcmp_withio() as a wrapper around memcmp(), - replace an incorrect memcpy_toio() by memcpy_fromio(). Signed-off-by:
Geert Uytterhoeven <geert@linux-m68k.org> Tested-by:
Finn Thain <fthain@telegraphics.com.au> Signed-off-by:
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Roland Dreier authored
CONFIG_CHELSIO_T1_COUGAR cannot be set (it appears nowhere in any Kconfig files), and the code it protects could never build (cspi.h was never added to the kernel tree). Therefore it's pretty safe to remove all vestiges of this dead code. Signed-off-by:
Roland Dreier <rolandd@cisco.com> Signed-off-by:
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Eric Dumazet authored
Avoid two atomic ops on struct in_device refcount per incoming packet, if slow path taken, (or route cache disabled) Signed-off-by:
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Eric Dumazet authored
Christoph Lameter mentioned that packets could be dropped in input path because of rp_filter settings, without any SNMP counter being incremented. System administrator can have a hard time to track the problem. This patch introduces a new counter, LINUX_MIB_IPRPFILTER, incremented each time we drop a packet because Reverse Path Filter triggers. (We receive an IPv4 datagram on a given interface, and find the route to send an answer would use another interface) netstat -s | grep IPReversePathFilter IPReversePathFilter: 21714 Reported-by:Christoph Lameter <cl@linux-foundation.org> Signed-off-by:
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Wu Fengguang authored
Now it's possible to update the DNS record for $HOST_NAME with ip=::::$HOST_NAME::dhcp CC: Andi Kleen <ak@linux.intel.com> Signed-off-by:
Wu Fengguang <fengguang.wu@intel.com> Signed-off-by:
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- 02 Jun, 2010 21 commits
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Jiri Pirko authored
What this patch does is it removes two receive frame hooks (for bridge and for macvlan) from __netif_receive_skb. These are replaced them with a single hook for both. It only supports one hook per device because it makes no sense to do bridging and macvlan on the same device. Then a network driver (of virtual netdev like macvlan or bridge) can register an rx_handler for needed net device. Signed-off-by:
Jiri Pirko <jpirko@redhat.com> Signed-off-by:
Stephen Hemminger <shemminger@vyatta.com> Signed-off-by:
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Arnaud Ebalard authored
There are more than a dozen occurrences of following code in the IPv6 stack: if (opt && opt->srcrt) { struct rt0_hdr *rt0 = (struct rt0_hdr *) opt->srcrt; ipv6_addr_copy(&final, &fl.fl6_dst); ipv6_addr_copy(&fl.fl6_dst, rt0->addr); final_p = &final; } Replace those with a helper. Note that the helper overrides final_p in all cases. This is ok as final_p was previously initialized to NULL when declared. Signed-off-by:Arnaud Ebalard <arno@natisbad.org> Signed-off-by:
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Finn Thain authored
Log error conditions using KERN_ERR priority. Signed-off-by:
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Wu Fengguang authored
Normally dhclient can be configured to send the "host-name" option in DHCP requests to update the client's DNS record. However for an NFSROOT system, dhclient shall never be called (which may change the IP addr and therefore lose your root NFS mount connection). So enable updating the DNS record with kernel parameter ip=::::$HOST_NAME::dhcp Signed-off-by:
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Scott McMillan authored
This patch adds a setting, PACKET_TIMESTAMP, to specify the packet timestamp source that is exported to capture utilities like tcpdump by packet_mmap. PACKET_TIMESTAMP accepts the same integer bit field as SO_TIMESTAMPING. However, only the SOF_TIMESTAMPING_SYS_HARDWARE and SOF_TIMESTAMPING_RAW_HARDWARE values are currently recognized by PACKET_TIMESTAMP. SOF_TIMESTAMPING_SYS_HARDWARE takes precedence over SOF_TIMESTAMPING_RAW_HARDWARE if both bits are set. If PACKET_TIMESTAMP is not set, a software timestamp generated inside the networking stack is used (the behavior before this setting was added). Signed-off-by:
Scott McMillan <scott.a.mcmillan@intel.com> Signed-off-by:
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Prarit Bhargava authored
Linux 2.6.33 reports this checkstack warning: drivers/net/vxge/vxge-main.c: In function 'vxge_probe': drivers/net/vxge/vxge-main.c:4409: warning: the frame size of 1028 bytes is larger than 1024 bytes This warning does not occur in the latest linux-2.6 or linux-next, however, when I do a 'make -j32 CONFIG_FRAME_WARN=512' instead of 1024 I see drivers/net/vxge/vxge-main.c: In function ‘vxge_probe’: drivers/net/vxge/vxge-main.c:4423: warning: the frame size of 1024 bytes is larger than 512 bytes This patch moves the large vxge_config struct off the stack. Signed-off-by:
Prarit Bhargava <prarit@redhat.com> Signed-off-by:
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Eric Dumazet authored
Use read_pnet() and write_pnet() to reduce number of ifdef CONFIG_NET_NS Signed-off-by:
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stephen hemminger authored
Sparse complains about shadowed declaration of skb. So use other name. Signed-off-by:
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Finn Thain authored
Use the request_irq() error code as the return value for mac8390_open(). EAGAIN doesn't make sense for Nubus slot IRQs. Only this driver can claim this IRQ (until the NIC is removed, which means everything is powered down). Signed-off-by:
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Dan Carpenter authored
I added newlines after the declarations in caif_serial.c. This is normal kernel style, although I can't see anywhere it's documented. Signed-off-by:
Dan Carpenter <error27@gmail.com> Signed-off-by:
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Dan Carpenter authored
We don't use the "ser" variable so I've removed it. Signed-off-by:
Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by:
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Eric Dumazet authored
When many cpus compete for sending frames on a given qdisc, the qdisc spinlock suffers from very high contention. The cpu owning __QDISC_STATE_RUNNING bit has same priority to acquire the lock, and cannot dequeue packets fast enough, since it must wait for this lock for each dequeued packet. One solution to this problem is to force all cpus spinning on a second lock before trying to get the main lock, when/if they see __QDISC_STATE_RUNNING already set. The owning cpu then compete with at most one other cpu for the main lock, allowing for higher dequeueing rate. Based on a previous patch from Alexander Duyck. I added the heuristic to avoid the atomic in fast path, and put the new lock far away from the cache line used by the dequeue worker. Also try to release the busylock lock as late as possible. Tests with following script gave a boost from ~50.000 pps to ~600.000 pps on a dual quad core machine (E5450 @3.00GHz), tg3 driver. (A single netperf flow can reach ~800.000 pps on this platform) for j in `seq 0 3`; do for i in `seq 0 7`; do netperf -H 192.168.0.1 -t UDP_STREAM -l 60 -N -T $i -- -m 6 & done done Signed-off-by: -
Jiri Pirko authored
In the worst case, when the first loop breaks an the end of the slave list, the slave list is iterated through twice. This patch reduces this function only to one loop. Also makes it simpler. Signed-off-by:
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Jiri Pirko authored
This is stored but never restored. So remove this as it is useless. Signed-off-by:
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Jiri Pirko authored
Move the code that copies slave's mac address in case that's the first slave into bond_enslave. Ifenslave app does this also but that's not a problem. This is something that should be done in bond_enslave, and it shound not matter from where is it called. Signed-off-by:
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Wolfram Sang authored
- don't free bus->irq (obsoleted by ca816d98) - don't dispose irqs (should be done in of_mdiobus_register()) - use fec-pointer consistently in transfer() - use resource_size() - cosmetic fixes Signed-off-by:
Wolfram Sang <w.sang@pengutronix.de> Signed-off-by:
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Jiri Pirko authored
This patch makes bonding_store_slaves function nicer and easier to understand. Signed-off-by:
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Jiri Pirko authored
(it's actually the same as v1) Remove checks that duplicates similar checks in bond_enslave. Signed-off-by:
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Jiri Pirko authored
V1->V2: corrected res/ret use For some reason, MTU handling (storing, and restoring) is taking place in bond_sysfs. The correct place for this code is in bond_enslave, bond_release. So move it there. Signed-off-by:
Jay Vosburgh <fubar@us.ibm.com> Signed-off-by:
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Jiri Pirko authored
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