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2006-02-05[PATCH] percpu data: only iterate over possible CPUsEric Dumazet1-1/+1
percpu_data blindly allocates bootmem memory to store NR_CPUS instances of cpudata, instead of allocating memory only for possible cpus. As a preparation for changing that, we need to convert various 0 -> NR_CPUS loops to use for_each_cpu(). (The above only applies to users of asm-generic/percpu.h. powerpc has gone it alone and is presently only allocating memory for present CPUs, so it's currently corrupting memory). Signed-off-by: Eric Dumazet <[email protected]> Cc: "David S. Miller" <[email protected]> Cc: James Bottomley <[email protected]> Acked-by: Ingo Molnar <[email protected]> Cc: Jens Axboe <[email protected]> Cc: Anton Blanchard <[email protected]> Acked-by: William Irwin <[email protected]> Cc: Andi Kleen <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-24[BONDING]: Remove CAP_NET_ADMIN requirement for INFOQUERY ioctlThomas Graf1-2/+3
This information is already available via /proc/net/bonding/* therefore it doesn't make sense to require CAP_NET_ADMIN privileges. Original patch by Laurent Deniel <[email protected]> Signed-off-by: Thomas Graf <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2006-01-11[PATCH] capable/capability.h (net/)Randy Dunlap1-0/+1
net: Use <linux/capability.h> where capable() is used. Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-01-09[NET]: Change some "if (x) BUG();" to "BUG_ON(x);"Kris Katterjohn1-6/+3
This changes some simple "if (x) BUG();" statements to "BUG_ON(x);" Signed-off-by: Kris Katterjohn <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2006-01-04Merge branch 'upstream-linus' of ↵Linus Torvalds1-1/+2
master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6
2006-01-03[NET]: Add a dev_ioctl() fallback to sock_ioctl()Christoph Hellwig1-1/+0
Currently all network protocols need to call dev_ioctl as the default fallback in their ioctl implementations. This patch adds a fallback to dev_ioctl to sock_ioctl if the protocol returned -ENOIOCTLCMD. This way all the procotol ioctl handlers can be simplified and we don't need to export dev_ioctl. Signed-off-by: Christoph Hellwig <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2005-12-12Merge branch 'master'Jeff Garzik1-1/+2
2005-12-08[NET]: Fix NULL pointer deref in checksum debugging.Stephen Hemminger1-1/+2
The problem I was seeing turned out to be that skb->dev is NULL when the checksum is being completed in user context. This happens because the reference to the device is dropped (to allow it to be released when packets are in the queue). Because skb->dev was NULL, the netdev_rx_csum_fault was panicing on deref of dev->name. How about this? Signed-off-by: Stephen Hemminger <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2005-11-13[PATCH] net: make dev_valid_name publicMitch Williams1-1/+2
dev_valid_name() is a useful function. Make it public. Signed-off-by: Mitch Williams <[email protected]> Acked-by: Jay Vosburgh <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2005-11-10[NET]: Detect hardware rx checksum faults correctlyHerbert Xu1-0/+12
Here is the patch that introduces the generic skb_checksum_complete which also checks for hardware RX checksum faults. If that happens, it'll call netdev_rx_csum_fault which currently prints out a stack trace with the device name. In future it can turn off RX checksum. I've converted every spot under net/ that does RX checksum checks to use skb_checksum_complete or __skb_checksum_complete with the exceptions of: * Those places where checksums are done bit by bit. These will call netdev_rx_csum_fault directly. * The following have not been completely checked/converted: ipmr ip_vs netfilter dccp This patch is based on patches and suggestions from Stephen Hemminger and David S. Miller. Signed-off-by: Herbert Xu <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2005-10-28[IPv4/IPv6]: UFO Scatter-gather approachAnanda Raju1-0/+14
Attached is kernel patch for UDP Fragmentation Offload (UFO) feature. 1. This patch incorporate the review comments by Jeff Garzik. 2. Renamed USO as UFO (UDP Fragmentation Offload) 3. udp sendfile support with UFO This patches uses scatter-gather feature of skb to generate large UDP datagram. Below is a "how-to" on changes required in network device driver to use the UFO interface. UDP Fragmentation Offload (UFO) Interface: ------------------------------------------- UFO is a feature wherein the Linux kernel network stack will offload the IP fragmentation functionality of large UDP datagram to hardware. This will reduce the overhead of stack in fragmenting the large UDP datagram to MTU sized packets 1) Drivers indicate their capability of UFO using dev->features |= NETIF_F_UFO | NETIF_F_HW_CSUM | NETIF_F_SG NETIF_F_HW_CSUM is required for UFO over ipv6. 2) UFO packet will be submitted for transmission using driver xmit routine. UFO packet will have a non-zero value for "skb_shinfo(skb)->ufo_size" skb_shinfo(skb)->ufo_size will indicate the length of data part in each IP fragment going out of the adapter after IP fragmentation by hardware. skb->data will contain MAC/IP/UDP header and skb_shinfo(skb)->frags[] contains the data payload. The skb->ip_summed will be set to CHECKSUM_HW indicating that hardware has to do checksum calculation. Hardware should compute the UDP checksum of complete datagram and also ip header checksum of each fragmented IP packet. For IPV6 the UFO provides the fragment identification-id in skb_shinfo(skb)->ip6_frag_id. The adapter should use this ID for generating IPv6 fragments. Signed-off-by: Ananda Raju <[email protected]> Signed-off-by: Rusty Russell <[email protected]> (forwarded) Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2005-10-08[PATCH] gfp flags annotations - part 1Al Viro1-1/+1
- added typedef unsigned int __nocast gfp_t; - replaced __nocast uses for gfp flags with gfp_t - it gives exactly the same warnings as far as sparse is concerned, doesn't change generated code (from gcc point of view we replaced unsigned int with typedef) and documents what's going on far better. Signed-off-by: Al Viro <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2005-09-27[NET]: Prefetch dev->qdisc_lock in dev_queue_xmit()Eric Dumazet1-0/+2
We know the lock is going to be taken. Signed-off-by: Eric Dumazet <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2005-09-22[LLC]: Fix for Bugzilla ticket #5156Jochen Friedrich1-0/+2
Signed-off-by: Jochen Friedrich <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2005-08-29[NET]: Fix sparse warningsArnaldo Carvalho de Melo1-6/+0
Of this type, mostly: CHECK net/ipv6/netfilter.c net/ipv6/netfilter.c:96:12: warning: symbol 'ipv6_netfilter_init' was not declared. Should it be static? net/ipv6/netfilter.c:101:6: warning: symbol 'ipv6_netfilter_fini' was not declared. Should it be static? Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2005-08-29[NET]: Store skb->timestamp as offset to a base timestampPatrick McHardy1-9/+19
Reduces skb size by 8 bytes on 64-bit. Signed-off-by: Patrick McHardy <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2005-08-29[NET]: Remove explicit initializations of skb->input_devDavid S. Miller1-5/+5
Instead, set it in one place, namely the beginning of netif_receive_skb(). Based upon suggestions from Jamal Hadi Salim. Signed-off-by: David S. Miller <[email protected]>
2005-08-29[NET]: Kill skb->real_devDavid S. Miller1-16/+19
Bonding just wants the device before the skb_bond() decapsulation occurs, so simply pass that original device into packet_type->func() as an argument. It remains to be seen whether we can use this same exact thing to get rid of skb->input_dev as well. Signed-off-by: David S. Miller <[email protected]>
2005-08-11[NETPOLL]: fix initialization/NAPI raceMatt Mackall1-4/+5
This fixes a race during initialization with the NAPI softirq processing by using an RCU approach. This race was discovered when refill_skbs() was added to the setup code. Signed-off-by: Matt Mackall <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2005-07-28[NET]: Fix busy waiting in dev_close().David S. Miller1-2/+1
If the current task has signal_pending(), the loop we have to wait for the __LINK_STATE_RX_SCHED bit to clear becomes a pure busy-loop. Fixed by using msleep() instead of the hand-crafted version. Noticed by Andrew Morton. Signed-off-by: David S. Miller <[email protected]>
2005-07-08[NET]: Fix sparse warningsVictor Fusco1-1/+1
From: Victor Fusco <[email protected]> Fix the sparse warning "implicit cast to nocast type" Signed-off-by: Victor Fusco <[email protected]> Signed-off-by: Domen Puncer <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2005-07-05[NET]: improve readability of dev_set_promiscuity() in net/core/dev.cDavid Chau1-2/+3
A trivial patch to improve the readability of dev_set_promiscuity() in net/core/dev.c. New code does exactly the same thing as original code. Signed-off-by: David Chau <[email protected]> Signed-off-by: Domen Puncer <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2005-06-23[NET]: Separate two usages of netdev_max_backlog.Stephen Hemminger1-3/+3
Separate out the two uses of netdev_max_backlog. One controls the upper bound on packets processed per softirq, the new name for this is netdev_budget; the other controls the limit on packets queued via netif_rx. Increase the max_backlog default to account for faster processors. Signed-off-by: Stephen Hemminger <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2005-06-23[NET]: Eliminate netif_rx massive packet drops.Stephen Hemminger1-19/+2
Eliminate the throttling behaviour when the netif receive queue fills because it behaves badly when using high speed networks under load. The throttling cause multiple packet drops that cause TCP to go into slow start mode. The same effective patch has been part of BIC TCP and H-TCP as well as part of Web100. The existing code drops 100's of packets when the queue fills; this changes it to individual packet drop-tail. Signed-off-by: Stephen Hemmminger <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2005-06-23[NET]: Remove obsolete netif_rx congestion sensing mechanism.Stephen Hemminger1-87/+1
Remove the congestion sensing mechanism from netif_rx, and always return either full or empty. Almost no driver checks the return value from netif_rx, and those that do only use it for debug messages. The original design of netif_rx was to do flow control based on the receive queue, but NAPI has supplanted this and no driver uses the feedback. Signed-off-by: Stephen Hemminger <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2005-06-23[NET]: Remove obsolete fastroute stats.Stephen Hemminger1-8/+2
Remove last vestiages of fastroute code that is no longer used. Signed-off-by: Stephen Hemminger <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2005-06-08[NET]: Fix sysctl net.core.dev_weightStephen Hemminger1-0/+1
Changing the sysctl net.core.dev_weight has no effect because the weight of the backlog devices is set during initialization and never changed. This patch propagates any changes to the global value affected by sysctl to the per-cpu devices. It is done every time the packet handler function is run. Signed-off-by: Stephen Hemminger <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2005-05-29[BRIDGE]: features change notificationStephen Hemminger1-0/+12
Resend of earlier patch (no changes) from Catalin used to provide device feature change notification. Signed-off-by: Catalin BOIE <catab at umbrella.ro> Acked-by: Stephen Hemminger <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2005-05-05[PATCH] update Ross Biro bouncing email addressJesper Juhl1-1/+1
Ross moved. Remove the bad email address so people will find the correct one in ./CREDITS. Signed-off-by: Jesper Juhl <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2005-05-01[PATCH] Change synchronize_kernel to _rcu and _schedPaul E. McKenney1-1/+1
This patch changes calls to synchronize_kernel(), deprecated in the earlier "Deprecate synchronize_kernel, GPL replacement" patch to instead call the new synchronize_rcu() and synchronize_sched() APIs. Signed-off-by: Paul E. McKenney <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2005-04-24[NET]: Document ->hard_start_xmit() locking in comments.Ben Greear1-0/+13
Signed-off-by: David S. Miller <[email protected]>
2005-04-16Linux-2.6.12-rc2Linus Torvalds1-0/+3359
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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