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* [NETPOLL]: remove unused variableMatt Mackall2005-08-111-1/+0
| | | | | | | Remove unused variable Signed-off-by: Matt Mackall <mpm@selenic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETPOLL]: fix initialization/NAPI raceMatt Mackall2005-08-112-4/+8
| | | | | | | | | | | 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 <mpm@selenic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETPOLL]: pre-fill skb poolIngo Molnar2005-08-111-0/+4
| | | | | | | | | | | | | | we could do one thing (see the patch below): i think it would be useful to fill up the netlogging skb queue straight at initialization time. Especially if netpoll is used for dumping alone, the system might not be in a situation to fill up the queue at the point of crash, so better be a bit more prepared and keep the pipeline filled. [ I've modified this to be called earlier - mpm ] Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Matt Mackall <mpm@selenic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETPOLL]: add retry timeoutMatt Mackall2005-08-111-3/+10
| | | | | | | | | | | | | | Add limited retry logic to netpoll_send_skb Each time we attempt to send, decrement our per-device retry counter. On every successful send, we reset the counter. We delay 50us between attempts with up to 20000 retries for a total of 1 second. After we've exhausted our retries, subsequent failed attempts will try only once until reset by success. Signed-off-by: Matt Mackall <mpm@selenic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETPOLL]: netpoll_send_skb simplifyMatt Mackall2005-08-111-20/+22
| | | | | | | | | | Minor netpoll_send_skb restructuring Restructure to avoid confusing goto and move some bits out of the retry loop. Signed-off-by: Matt Mackall <mpm@selenic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETPOLL]: deadlock bugfixJeff Moyer2005-08-111-3/+0
| | | | | | | | | | This fixes an obvious deadlock in the netpoll code. netpoll_rx takes the npinfo->rx_lock. netpoll_rx is also the only caller of arp_reply (through __netpoll_rx). As such, it is not necessary to take this lock. Signed-off-by: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: Matt Mackall <mpm@selenic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETPOLL]: rx_flags bugfixJeff Moyer2005-08-111-0/+1
| | | | | | | | | | Initialize npinfo->rx_flags. The way it stands now, this will have random garbage, and so will incur a locking penalty even when an rx_hook isn't registered and we are not active in the netpoll polling code. Signed-off-by: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: Matt Mackall <mpm@selenic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET] Fix too aggressive backoff in dst garbage collectionDenis Lunev2005-07-301-4/+11
| | | | | | | | | | | | | | | The bug is evident when it is seen once. dst gc timer was backed off, when gc queue is not empty. But this means that timer quickly backs off, if at least one destination remains in use. Normally, the bug is invisible, because adding new dst entry to queue cancels the backoff. But it shots deadly with destination cache overflow when new destinations are not released for long time f.e. after an interface goes down. The fix is to cancel backoff when something was released. Signed-off-by: Denis Lunev <den@sw.ru> Signed-off-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Fix busy waiting in dev_close().David S. Miller2005-07-281-2/+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 <davem@davemloft.net>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2005-07-272-7/+43
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| * [NET]: Move in_aton from net/ipv4/utils.c to net/core/utils.cMatt Mackall2005-07-271-1/+36
| | | | | | | | | | | | | | | | | | | | | | | | Move in_aton to allow netpoll and pktgen to work without the rest of the IPv4 stack. Fix whitespace and add comment for the odd placement. Delete now-empty net/ipv4/utils.c Re-enable netpoll/netconsole without CONFIG_INET Signed-off-by: Matt Mackall <mpm@selenic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [NET]: Fix setsockopt locking bugKyle Moffett2005-07-271-6/+7
| | | | | | | | | | | | | | | | On Sparc, SO_DONTLINGER support resulted in sock_reset_flag being called without lock_sock(). Signed-off-by: Kyle Moffett <mrmacman_g4@mac.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [PATCH] clean up inline static vs static inlineJesper Juhl2005-07-271-1/+1
|/ | | | | | | | | | | | | | | `gcc -W' likes to complain if the static keyword is not at the beginning of the declaration. This patch fixes all remaining occurrences of "inline static" up with "static inline" in the entire kernel tree (140 occurrences in 47 files). While making this change I came across a few lines with trailing whitespace that I also fixed up, I have also added or removed a blank line or two here and there, but there are no functional changes in the patch. Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [NET]: Fix tc_verd thinko in skb_clone()David S. Miller2005-07-191-2/+2
| | | | | | | It was overwriting the computer n->tc_verd value over and over with skb->tc_verd, by mistake. Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Only build flow.o if CONFIG_XFRM=yPatrick McHardy2005-07-191-1/+2
| | | | | Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Fix sparse warningsVictor Fusco2005-07-083-12/+18
| | | | | | | | | | From: Victor Fusco <victor@cetuc.puc-rio.br> Fix the sparse warning "implicit cast to nocast type" Signed-off-by: Victor Fusco <victor@cetuc.puc-rio.br> Signed-off-by: Domen Puncer <domen@coderock.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: improve readability of dev_set_promiscuity() in net/core/dev.cDavid Chau2005-07-051-2/+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 <ddcc@mit.edu> Signed-off-by: Domen Puncer <domen@coderock.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Remove unused security member in sk_buffThomas Graf2005-07-051-2/+0
| | | | | Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: net/core/filter.c: make len cover the entire packetPatrick McHardy2005-07-051-6/+2
| | | | | | | | | | As suggested by Herbert Xu: Since we don't require anything to be in the linear packet range anymore make len cover the entire packet. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Consolidate common code in net/core/filter.cPatrick McHardy2005-07-051-57/+33
| | | | | Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Remove redundant code in net/core/filter.cPatrick McHardy2005-07-051-12/+0
| | | | | | | | | skb_header_pointer handles linear and non-linear data, no need to handle linear data again. Signed-off-by: Patrick McHardy <kaber@trash.net> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETLINK]: Missing initializations in dumped dataPatrick McHardy2005-06-283-0/+8
| | | | | | | | Mostly missing initialization of padding fields of 1 or 2 bytes length, two instances of uninitialized nlmsgerr->msg of 16 bytes length. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETLINK]: Clear padding in netlink messagesPatrick McHardy2005-06-281-0/+1
| | | | | Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [PKTGEN]: Fix random packet sizes causing panicRobert Olsson2005-06-261-16/+13
| | | | | Signed-off-by: Robert Olsson <robert.olsson@its.uu.se> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: skb_find_text() - Find a text pattern in skb dataThomas Graf2005-06-231-0/+40
| | | | | | | | | | Finds a pattern in the skb data according to the specified textsearch configuration. Use textsearch_next() to retrieve subsequent occurrences of the pattern. Returns the offset to the first occurrence or UINT_MAX if no match was found. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Zerocopy sequential reading of skb dataThomas Graf2005-06-231-0/+117
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implements sequential reading for both linear and non-linear skb data at zerocopy cost. The data is returned in chunks of arbitary length, therefore random access is not possible. Usage: from := 0 to := 128 state := undef data := undef len := undef consumed := 0 skb_prepare_seq_read(skb, from, to, &state) while (len = skb_seq_read(consumed, &data, &state)) != 0 do /* do something with 'data' of length 'len' */ if abort then /* abort read if we don't wait for * skb_seq_read() to return 0 */ skb_abort_seq_read(&state) return endif /* not necessary to consume all of 'len' */ consumed += len done Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Separate two usages of netdev_max_backlog.Stephen Hemminger2005-06-232-3/+12
| | | | | | | | | | | | 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 <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Eliminate netif_rx massive packet drops.Stephen Hemminger2005-06-231-19/+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 <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Remove obsolete netif_rx congestion sensing mechanism.Stephen Hemminger2005-06-232-123/+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 <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Remove obsolete fastroute stats.Stephen Hemminger2005-06-232-9/+2
| | | | | | | Remove last vestiages of fastroute code that is no longer used. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [PATCH] create a kstrdup library functionPaulo Marques2005-06-232-16/+2
| | | | | | | | | | | | | | | | This patch creates a new kstrdup library function and changes the "local" implementations in several places to use this function. Most of the changes come from the sound and net subsystems. The sound part had already been acknowledged by Takashi Iwai and the net part by David S. Miller. I left UML alone for now because I would need more time to read the code carefully before making changes there. Signed-off-by: Paulo Marques <pmarques@grupopie.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [NETPOLL]: allow multiple netpoll_clients to register against one interfaceJeff Moyer2005-06-221-10/+29
| | | | | | | | | | | | | | | | | | | | This patch provides support for registering multiple netpoll clients to the same network device. Only one of these clients may register an rx_hook, however. In practice, this restriction has not been problematic. It is worth mentioning, though, that the current design can be easily extended to allow for the registration of multiple rx_hooks. The basic idea of the patch is that the rx_np pointer in the netpoll_info structure points to the struct netpoll that has rx_hook filled in. Aside from this one case, there is no need for a pointer from the struct net_device to an individual struct netpoll. A lock is introduced to protect the setting and clearing of the np_rx pointer. The pointer will only be cleared upon netpoll client module removal, and the lock should be uncontested. Signed-off-by: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETPOLL]: Introduce a netpoll_info structJeff Moyer2005-06-221-19/+38
| | | | | | | | | | | | | | | This patch introduces a netpoll_info structure, which the struct net_device will now point to instead of pointing to a struct netpoll. The reason for this is two-fold: 1) fields such as the rx_flags, poll_owner, and poll_lock should be maintained per net_device, not per netpoll; and 2) this is a first step in providing support for multiple netpoll clients to register against the same net_device. The struct netpoll is now pointed to by the netpoll_info structure. As such, the previous behaviour of the code is preserved. Signed-off-by: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: Kill nf_debugPatrick McHardy2005-06-212-144/+0
| | | | | Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETLINK]: Set correct pid for ioctl originating netlink eventsJamal Hadi Salim2005-06-181-1/+1
| | | | | | | | | This patch ensures that netlink events created as a result of programns using ioctls (such as ifconfig, route etc) contains the correct PID of those events. Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETLINK]: Correctly set NLM_F_MULTI without checking the pidJamal Hadi Salim2005-06-182-12/+15
| | | | | | | | | | | This patch rectifies some rtnetlink message builders that derive the flags from the pid. It is now explicit like the other cases which get it right. Also fixes half a dozen dumpers which did not set NLM_F_MULTI at all. Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETLINK]: Introduce NLMSG_NEW macro to better handle netlink flagsThomas Graf2005-06-181-4/+4
| | | | | | | | | | | | | | Introduces a new macro NLMSG_NEW which extends NLMSG_PUT but takes a flags argument. NLMSG_PUT stays there for compatibility but now calls NLMSG_NEW with flags == 0. NLMSG_PUT_ANSWER is renamed to NLMSG_NEW_ANSWER which now also takes a flags argument. Also converts the users of NLMSG_PUT_ANSWER to use NLMSG_NEW_ANSWER and fixes the two direct users of __nlmsg_put to either provide the flags or use NLMSG_NEW(_ANSWER). Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NEIGH]: Fix use of uninitialized variable when trimming in neightbl_fill_parmsThomas Graf2005-06-181-1/+3
| | | | | Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETLINK]: Kill bogus NLMSG_SET_MULTIPART uses.Thomas Graf2005-06-181-4/+4
| | | | | Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETLINK]: Neighbour table configuration and statistics via rtnetlinkThomas Graf2005-06-182-11/+326
| | | | | | | | | | | | | | | | | | | | | | | | | | | To retrieve the neighbour tables send RTM_GETNEIGHTBL with the NLM_F_DUMP flag set. Every neighbour table configuration is spread over multiple messages to avoid running into message size limits on systems with many interfaces. The first message in the sequence transports all not device specific data such as statistics, configuration, and the default parameter set. This message is followed by 0..n messages carrying device specific parameter sets. Although the ordering should be sufficient, NDTA_NAME can be used to identify sequences. The initial message can be identified by checking for NDTA_CONFIG. The device specific messages do not contain this TLV but have NDTPA_IFINDEX set to the corresponding interface index. To change neighbour table attributes, send RTM_SETNEIGHTBL with NDTA_NAME set. Changeable attribute include NDTA_THRESH[1-3], NDTA_GC_INTERVAL, and all TLVs in NDTA_PARMS unless marked otherwise. Device specific parameter sets can be changed by setting NDTPA_IFINDEX to the interface index of the corresponding device. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Move sysctl_max_syn_backlog into request_sock.cDavid S. Miller2005-06-181-0/+16
| | | | | | | This fixes the CONFIG_INET=n build failure noticed by Andrew Morton. Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET] rename struct tcp_listen_opt to struct listen_sockArnaldo Carvalho de Melo2005-06-181-2/+2
| | | | | Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET] Generalise tcp_listen_optArnaldo Carvalho de Melo2005-06-182-1/+50
| | | | | | | | | | | | | This chunks out the accept_queue and tcp_listen_opt code and moves them to net/core/request_sock.c and include/net/request_sock.h, to make it useful for other transport protocols, DCCP being the first one to use it. Next patches will rename tcp_listen_opt to accept_sock and remove the inline tcp functions that just call a reqsk_queue_ function. Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET] Generalise TCP's struct open_request minisock infrastructureArnaldo Carvalho de Melo2005-06-181-0/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Kept this first changeset minimal, without changing existing names to ease peer review. Basicaly tcp_openreq_alloc now receives the or_calltable, that in turn has two new members: ->slab, that replaces tcp_openreq_cachep ->obj_size, to inform the size of the openreq descendant for a specific protocol The protocol specific fields in struct open_request were moved to a class hierarchy, with the things that are common to all connection oriented PF_INET protocols in struct inet_request_sock, the TCP ones in tcp_request_sock, that is an inet_request_sock, that is an open_request. I.e. this uses the same approach used for the struct sock class hierarchy, with sk_prot indicating if the protocol wants to use the open_request infrastructure by filling in sk_prot->rsk_prot with an or_calltable. Results? Performance is improved and TCP v4 now uses only 64 bytes per open request minisock, down from 96 without this patch :-) Next changeset will rename some of the structs, fields and functions mentioned above, struct or_calltable is way unclear, better name it struct request_sock_ops, s/struct open_request/struct request_sock/g, etc. Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* Manual merge of ↵Linus Torvalds2005-06-181-2/+72
|\ | | | | | | | | | | | | | | rsync://rsync.kernel.org/pub/scm/linux/kernel/git/jgarzik/netdev-2.6.git This is a fixed-up version of the broken "upstream-2.6.13" branch, where I re-did the manual merge of drivers/net/r8169.c by hand, and made sure the history is all good.
| * Automatic merge of /spare/repo/netdev-2.6 branch we182005-06-041-2/+72
| |\
| | * [PATCH] Wireless Extensions 18 (aka WPA)2005-05-121-2/+72
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is version 18 of the Wireless Extensions. The main change is that it adds all the necessary APIs for WPA and WPA2 support. This work was entirely done by Jouni Malinen, so let's thank him for both his hard work and deep expertise on the subject ;-) This APIs obviously doesn't do much by itself and works in concert with driver support (Jouni already sent you the HostAP changes) and userspace (Jouni is updating wpa_supplicant). This is also orthogonal with the ongoing work on in-kernel IEEE support (but potentially useful). The patch is attached, tested with 2.6.11. Normally, I would ask you to push that directly in the kernel (99% of the patch has been on my web page for ages and it does not affect non-WPA stuff), but Jouni convinced me that it should bake a few weeks in wireless-2.6 first, so that other driver maintainers can get up to speed with it. Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
* | | [NET]: Fix sysctl net.core.dev_weightStephen Hemminger2005-06-081-0/+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 <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | [NET]: Allow controlling NAPI device weight with sysfsStephen Hemminger2005-06-081-0/+17
| | | | | | | | | | | | | | | | | | | | | | | | Simple interface to allow changing network device scheduling weight with sysfs. Please consider this for 2.6.12, since risk/impact is small. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | [ETHTOOL]: Check correct pointer in ethtool_set_coalesce().David S. Miller2005-06-061-1/+1
|/ / | | | | | | | | | | | | It was checking the "GET" function pointer instead of the "SET" one. Looks like a cut&paste error :-) Signed-off-by: David S. Miller <davem@davemloft.net>
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