aboutsummaryrefslogtreecommitdiffstats
path: root/Documentation/networking
Commit message (Collapse)AuthorAgeFilesLines
* RDS: Documentation: Document AF_RDS, PF_RDS and SOL_RDS correctly.Sowmini Varadhan2015-08-071-5/+4
| | | | | | | | | | | | | | commit ebe96e641dee2cbd135ee802ae7e40c361640088 upstream. AF_RDS, PF_RDS and SOL_RDS are available in header files, and there is no need to get their values from /proc. Document this correctly. Fixes: 0c5f9b8830aa ("RDS: Documentation") Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
* tcp: implement RFC 5961 3.2Eric Dumazet2013-01-161-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | [ Upstream commit 282f23c6ee343126156dd41218b22ece96d747e3 ] Implement the RFC 5691 mitigation against Blind Reset attack using RST bit. Idea is to validate incoming RST sequence, to match RCV.NXT value, instead of previouly accepted window : (RCV.NXT <= SEG.SEQ < RCV.NXT+RCV.WND) If sequence is in window but not an exact match, send a "challenge ACK", so that the other part can resend an RST with the appropriate sequence. Add a new sysctl, tcp_challenge_ack_limit, to limit number of challenge ACK sent per second. Add a new SNMP counter to count number of challenge acks sent. (netstat -s | grep TCPChallengeACK) Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Kiran Kumar Kella <kkiran@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
* tcp: change tcp_adv_win_scale and tcp_rmem[2]Eric Dumazet2012-05-201-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [ Upstream commit b49960a05e32121d29316cfdf653894b88ac9190 ] tcp_adv_win_scale default value is 2, meaning we expect a good citizen skb to have skb->len / skb->truesize ratio of 75% (3/4) In 2.6 kernels we (mis)accounted for typical MSS=1460 frame : 1536 + 64 + 256 = 1856 'estimated truesize', and 1856 * 3/4 = 1392. So these skbs were considered as not bloated. With recent truesize fixes, a typical MSS=1460 frame truesize is now the more precise : 2048 + 256 = 2304. But 2304 * 3/4 = 1728. So these skb are not good citizen anymore, because 1460 < 1728 (GRO can escape this problem because it build skbs with a too low truesize.) This also means tcp advertises a too optimistic window for a given allocated rcvspace : When receiving frames, sk_rmem_alloc can hit sk_rcvbuf limit and we call tcp_prune_queue()/tcp_collapse() too often, especially when application is slow to drain its receive queue or in case of losses (netperf is fast, scp is slow). This is a major latency source. We should adjust the len/truesize ratio to 50% instead of 75% This patch : 1) changes tcp_adv_win_scale default to 1 instead of 2 2) increase tcp_rmem[2] limit from 4MB to 6MB to take into account better truesize tracking and to allow autotuning tcp receive window to reach same value than before. Note that same amount of kernel memory is consumed compared to 2.6 kernels. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Tom Herbert <therbert@google.com> Cc: Yuchung Cheng <ycheng@google.com> Acked-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
* ipv4:correct description for tcp_max_syn_backlogPeter Pan(潘卫平)2011-12-061-5/+5
| | | | | | | | | | | | | | | | | Since commit c5ed63d66f24(tcp: fix three tcp sysctls tuning), sysctl_max_syn_backlog is determined by tcp_hashinfo->ehash_mask, and the minimal value is 128, and it will increase in proportion to the memory of machine. The original description for tcp_max_syn_backlog and sysctl_max_syn_backlog are out of date. Changelog: V2: update description for sysctl_max_syn_backlog Signed-off-by: Weiping Pan <panweiping3@gmail.com> Reviewed-by: Shan Wei <shanwei88@gmail.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: min_pmtu default is 552Eric Dumazet2011-11-081-1/+1
| | | | | | | Small fix in Documentation, since min_pmtu is 512 + 20 + 20 = 552 Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipvs: Enhance grammar used to refer to Kconfig optionsSimon Horman2011-11-011-2/+2
| | | | | | Reported-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* ipvs: secure_tcp does provide alternate state timeoutsSimon Horman2011-11-011-6/+4
| | | | | | | Also reword the test to make it read more easily (to me) Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* ipvs: Add documentation for new sysctl entriesSimon Horman2011-11-011-1/+51
| | | | | | | | | | | Add missing documentation for conntrack, snat_reroute and sync_version. Also fix up a typo, IPVS_DEBUG should be IP_VS_DEBUG. Acked-by: Julian Anastasov <ja@ssi.bg> Acked-by Hans Schillstrom <hans@schillstrom.com> Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* qlcnic: Updated License fileSritej Velaga2011-10-301-45/+6
| | | | | | | | Updated qlcnic's license file. Signed-off-by: Sritej Velaga <sritej.velaga@qlogic.com> Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds2011-10-255-17/+60
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1745 commits) dp83640: free packet queues on remove dp83640: use proper function to free transmit time stamping packets ipv6: Do not use routes from locally generated RAs |PATCH net-next] tg3: add tx_dropped counter be2net: don't create multiple RX/TX rings in multi channel mode be2net: don't create multiple TXQs in BE2 be2net: refactor VF setup/teardown code into be_vf_setup/clear() be2net: add vlan/rx-mode/flow-control config to be_setup() net_sched: cls_flow: use skb_header_pointer() ipv4: avoid useless call of the function check_peer_pmtu TCP: remove TCP_DEBUG net: Fix driver name for mdio-gpio.c ipv4: tcp: fix TOS value in ACK messages sent from TIME_WAIT rtnetlink: Add missing manual netlink notification in dev_change_net_namespaces ipv4: fix ipsec forward performance regression jme: fix irq storm after suspend/resume route: fix ICMP redirect validation net: hold sock reference while processing tx timestamps tcp: md5: add more const attributes Add ethtool -g support to virtio_net ... Fix up conflicts in: - drivers/net/Kconfig: The split-up generated a trivial conflict with removal of a stale reference to Documentation/networking/net-modules.txt. Remove it from the new location instead. - fs/sysfs/dir.c: Fairly nasty conflicts with the sysfs rb-tree usage, conflicting with Eric Biederman's changes for tagged directories.
| * stmmac: update the driver version and doc (V4)Giuseppe CAVALLARO2011-10-191-1/+10
| | | | | | | | | | Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * Merge branch 'master' of ↵John W. Linville2011-10-171-0/+4
| |\ | | | | | | | | | git://git.infradead.org/users/linville/wireless-next into for-davem
| | * mac80211: Update injection documentationHelmut Schaa2011-10-111-0/+4
| | | | | | | | | | | | | | | | | | | | | Add documentation about NOACK tx flag usage. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | Merge branch 'master' of github.com:davem330/netDavid S. Miller2011-10-072-8/+8
| |\ \ | | | | | | | | | | | | | | | | Conflicts: net/batman-adv/soft-interface.c
| * \ \ Merge branch 'master' of github.com:davem330/netDavid S. Miller2011-09-222-2/+3
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: MAINTAINERS drivers/net/Kconfig drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c drivers/net/ethernet/broadcom/tg3.c drivers/net/wireless/iwlwifi/iwl-pci.c drivers/net/wireless/iwlwifi/iwl-trans-tx-pcie.c drivers/net/wireless/rt2x00/rt2800usb.c drivers/net/wireless/wl12xx/main.c
| * \ \ \ Merge branch 'batman-adv/next' of git://git.open-mesh.org/linux-mergeDavid S. Miller2011-09-211-4/+4
| |\ \ \ \
| | * | | | batman-adv: update README (date & ap isolation sysfs file)Simon Wunderlich2011-09-081-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
| * | | | | ipv6: Send ICMPv6 RSes only when RAs are acceptedTore Anderson2011-09-161-9/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch improves the logic determining when to send ICMPv6 Router Solicitations, so that they are 1) always sent when the kernel is accepting Router Advertisements, and 2) never sent when the kernel is not accepting RAs. In other words, the operational setting of the "accept_ra" sysctl is used. The change also makes the special "Hybrid Router" forwarding mode ("forwarding" sysctl set to 2) operate exactly the same as the standard Router mode (forwarding=1). The only difference between the two was that RSes was being sent in the Hybrid Router mode only. The sysctl documentation describing the special Hybrid Router mode has therefore been removed. Rationale for the change: Currently, the value of forwarding sysctl is the only thing determining whether or not to send RSes. If it has the value 0 or 2, they are sent, otherwise they are not. This leads to inconsistent behaviour in the following cases: * accept_ra=0, forwarding=0 * accept_ra=0, forwarding=2 * accept_ra=1, forwarding=2 * accept_ra=2, forwarding=1 In the first three cases, the kernel will send RSes, even though it will not accept any RAs received in reply. In the last case, it will not send any RSes, even though it will accept and process any RAs received. (Most routers will send unsolicited RAs periodically, so suppressing RSes in the last case will merely delay auto-configuration, not prevent it.) Also, it is my opinion that having the forwarding sysctl control RS sending behaviour (completely independent of whether RAs are being accepted or not) is simply not what most users would intuitively expect to be the case. Signed-off-by: Tore Anderson <tore@fud.no> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | stmmac: update the doc with new info about the driver's debug (v3)Giuseppe CAVALLARO2011-09-151-1/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/netDavid S. Miller2011-08-202-0/+494
| |\ \ \ \ \
| * | | | | | net: remove ndo_set_multicast_list callbackJiri Pirko2011-08-171-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove no longer used operation. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | | | Merge branch 'for-linus' of ↵Linus Torvalds2011-10-251-1/+1
|\ \ \ \ \ \ \ | |_|_|_|_|/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (59 commits) MAINTAINERS: linux-m32r is moderated for non-subscribers linux@lists.openrisc.net is moderated for non-subscribers Drop default from "DM365 codec select" choice parisc: Kconfig: cleanup Kernel page size default Kconfig: remove redundant CONFIG_ prefix on two symbols cris: remove arch/cris/arch-v32/lib/nand_init.S microblaze: add missing CONFIG_ prefixes h8300: drop puzzling Kconfig dependencies MAINTAINERS: microblaze-uclinux@itee.uq.edu.au is moderated for non-subscribers tty: drop superfluous dependency in Kconfig ARM: mxc: fix Kconfig typo 'i.MX51' Fix file references in Kconfig files aic7xxx: fix Kconfig references to READMEs Fix file references in drivers/ide/ thinkpad_acpi: Fix printk typo 'bluestooth' bcmring: drop commented out line in Kconfig btmrvl_sdio: fix typo 'btmrvl_sdio_sd6888' doc: raw1394: Trivial typo fix CIFS: Don't free volume_info->UNC until we are entirely done with it. treewide: Correct spelling of successfully in comments ...
| * | | | | | doc: fix broken referencesPaul Bolle2011-09-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are numerous broken references to Documentation files (in other Documentation files, in comments, etc.). These broken references are caused by typo's in the references, and by renames or removals of the Documentation files. Some broken references are simply odd. Fix these broken references, sometimes by dropping the irrelevant text they were part of. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | | | | | | net: fix typos in Documentation/networking/scaling.txtBenjamin Poirier2011-10-061-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The second hunk fixes rps_sock_flow_table but has to re-wrap the paragraph. Signed-off-by: Benjamin Poirier <benjamin.poirier@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | | | net: Documentation: Fix type of variablesRoy.Li2011-09-291-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Roy.Li <rongqing.li@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | | | net: fix a typo in Documentation/networking/scaling.txtJason Wang2011-09-271-1/+1
| |_|_|_|/ / |/| | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | | Documentation: networking: dmfe.txt: Remove the maintainer of orphan ↵Marcos Paulo de Souza2011-09-151-1/+2
|/ / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | networking driver The dmfe module is a orphan driver, and with this was removed the maintainer of the documentation. Signed-off-by: Marcos Paulo de Souza <marcos.mage@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | net: Documentation: RFC 2553bis is now RFC 3493Geoffrey Thomas2011-08-221-1/+1
| |/ / / |/| | | | | | | | | | | | | | | Signed-off-by: Geoffrey Thomas <geofft@mit.edu> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | net: netdev-features.txt update to Documentation/networking/00-INDEXWillem de Bruijn2011-08-181-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update netdev-features.txt entry in 00-INDEX to incorporate feedback by Michał Mirosław. v2: restored tabs that were inadvertently changed to spaces in v1. sorry for the error. Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | net: minor update to Documentation/networking/scaling.txtWillem de Bruijn2011-08-131-8/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Incorporate last comments about hyperthreading, interrupt coalescing and the definition of cache domains into the network scaling document scaling.txt Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | net: add missing entries to Documentation/networking/00-INDEXWillem de Bruijn2011-08-131-0/+116
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A simple janitor duty patch that adds a one sentence overview to 00-INDEX for all files that lacked it. - does not add entries for subdirectories - does not modify existing entries. Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | net: add Documentation/networking/scaling.txtWillem de Bruijn2011-08-101-0/+371
|/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Describes RSS, RPS, RFS, accelerated RFS, and XPS. This version incorporates comments by Randy Dunlap and Rick Jones. Besides text cleanup, it adds an explicit "Suggested Configuration" heading to each section. Signed-off-by: Willem de Bruijn <willemb@google.com> Acked-By: Rick Jones <rick.jones2@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | bonding: document two undocumented options.Nicolas de Pesloüan2011-08-071-0/+29
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 655f8919d549ad1872e24d826b6ce42530516d2e bonding: add min links parameter to 802.3ad and commit ebd8e4977a87cb81d93c62a9bff0102a9713722f bonding: add all_slaves_active parameter introduced new options to bonding, but didn't provide the documentation for those options. V2: add the default value for both options. V3: document the exact behavior of min_links default value. Signed-off-by: Nicolas de Pesloüan <nicolas.2p.debian@free.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Documentation/bonding.txt: Update to 3.x version numbersJesper Juhl2011-08-011-1/+1
|/ | | | | Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* stmmac: improve and up-to-date the documentationGiuseppe CAVALLARO2011-07-211-64/+136
| | | | | | | | This patch adds new information for the driver especially about its platform structure fields. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵David S. Miller2011-07-141-1/+1
|\ | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: net/bluetooth/l2cap_core.c
| * net: Fix default in docs for tcp_orphan_retries.David S. Miller2011-07-081-1/+1
| | | | | | | | | | | | | | Default should be listed at 8 instead of 7. Reported-by: Denys Fedoryshchenko <denys@visp.net.lb> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: Add documentation for netdev features handlingMichał Mirosław2011-07-121-0/+154
| | | | | | | | | | | | | | v2: incorporated suggestions from Randy Dunlap Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'master' of ↵John W. Linville2011-07-081-0/+128
|\ \ | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem
| * | NFC: add Documentation/networking/nfc.txtAloisio Almeida Jr2011-07-051-0/+128
| | | | | | | | | | | | | | | | | | Signed-off-by: Aloisio Almeida Jr <aloisio.almeida@openbossa.org> Signed-off-by: Lauro Ramos Venancio <lauro.venancio@openbossa.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | net: doc: fix compile warning of no format arguments in ifenslave.cShan Wei2011-07-071-9/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix following warning in ifenslave.c with gcc version 4.5.2 (Ubuntu/Linaro 4.5.2-8ubuntu4). Documentation/networking/ifenslave.c:263:4: warning: format not a string literal and no format arguments Documentation/networking/ifenslave.c:271:3: warning: format not a string literal and no format arguments Documentation/networking/ifenslave.c:277:3: warning: format not a string literal and no format arguments Documentation/networking/ifenslave.c:285:3: warning: format not a string literal and no format arguments Documentation/networking/ifenslave.c:291:3: warning: format not a string literal and no format arguments Documentation/networking/ifenslave.c:292:3: warning: format not a string literal and no format arguments Documentation/networking/ifenslave.c:312:4: warning: format not a string literal and no format arguments Documentation/networking/ifenslave.c:323:3: warning: format not a string literal and no format arguments Documentation/networking/ifenslave.c:342:4: warning: format not a string literal and no format arguments Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | Update documented default values for various TCP/UDP tunablesMax Matveev2011-07-041-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | tcp_rmem and tcp_wmem use 1 page as default value for the minimum amount of memory to be used, same as udp_wmem_min and udp_rmem_min. Pages are different size on different architectures - use the right units when describing the defaults. Reviewed-by: Shan Wei <shanwei@cn.fujitsu.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Max Matveev <makc@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | Update description of net.sctp.sctp_rmem and net.sctp.sctp_wmem tunablesMax Matveev2011-07-041-2/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sctp does not use second and third ("default" and "max") values of sctp_rmem tunable. The format is the same as tcp_rmem but the meaning is different so make the documentation explicit to avoid confusion. sctp_wmem is not used at all. Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Max Matveev <makc@redhat.com> Reviewed-by: Shan Wei <shanwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | inetpeer: remove unused listEric Dumazet2011-06-081-10/+0
| |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Andi Kleen and Tim Chen reported huge contention on inetpeer unused_peers.lock, on memcached workload on a 40 core machine, with disabled route cache. It appears we constantly flip peers refcnt between 0 and 1 values, and we must insert/remove peers from unused_peers.list, holding a contended spinlock. Remove this list completely and perform a garbage collection on-the-fly, at lookup time, using the expired nodes we met during the tree traversal. This removes a lot of code, makes locking more standard, and obsoletes two sysctls (inet_peer_gc_mintime and inet_peer_gc_maxtime). This also removes two pointers in inet_peer structure. There is still a false sharing effect because refcnt is in first cache line of object [were the links and keys used by lookups are located], we might move it at the end of inet_peer structure to let this first cache line mostly read by cpus. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Andi Kleen <andi@firstfloor.org> CC: Tim Chen <tim.c.chen@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'docs-move' of ↵Linus Torvalds2011-05-271-2/+2
|\ \ | |/ |/| | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rdunlap/linux-docs * 'docs-move' of git://git.kernel.org/pub/scm/linux/kernel/git/rdunlap/linux-docs: Create Documentation/security/, move LSM-, credentials-, and keys-related files from Documentation/ to Documentation/security/, add Documentation/security/00-INDEX, and update all occurrences of Documentation/<moved_file> to Documentation/security/<moved_file>.
| * Create Documentation/security/,Randy Dunlap2011-05-191-2/+2
| | | | | | | | | | | | | | | | move LSM-, credentials-, and keys-related files from Documentation/ to Documentation/security/, add Documentation/security/00-INDEX, and update all occurrences of Documentation/<moved_file> to Documentation/security/<moved_file>.
* | bonding: documentation and code cleanup for resend_igmpFlavio Leitner2011-05-251-2/+11
| | | | | | | | | | | | | | | | | | Improves the documentation about how IGMP resend parameter works, fix two missing checks and coding style issues. Signed-off-by: Flavio Leitner <fbl@redhat.com> Acked-by: Rick Jones <rick.jones2@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'batman-adv/next' of git://git.open-mesh.org/ecsv/linux-mergeDavid S. Miller2011-05-081-5/+6
|\ \
| * | batman-adv: rename everything from *hna* into *tt* (translation table)Antonio Quartulli2011-05-081-5/+6
| | | | | | | | | | | | | | | | | | | | | | | | To be coherent, all the functions/variables/constants have been renamed to the TranslationTable style Signed-off-by: Antonio Quartulli <ordex@autistici.org> Signed-off-by: Sven Eckelmann <sven@narfation.org>
* | | ipv4, ipv6, bonding: Restore control over number of peer notificationsBen Hutchings2011-04-291-18/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For backward compatibility, we should retain the module parameters and sysfs attributes to control the number of peer notifications (gratuitous ARPs and unsolicited NAs) sent after bonding failover. Also, it is possible for failover to take place even though the new active slave does not have link up, and in that case the peer notification should be deferred until it does. Change ipv4 and ipv6 so they do not automatically send peer notifications on bonding failover. Change the bonding driver to send separate NETDEV_NOTIFY_PEERS notifications when the link is up, as many times as requested. Since it does not directly control which protocols send notifications, make num_grat_arp and num_unsol_na aliases for a single parameter. Bump the bonding version number and update its documentation. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Acked-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
generated by cgit v1.1 at 2024-05-15 18:33:17 +0000