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authorLinus Torvalds <torvalds@linux-foundation.org>2015-09-03 08:08:17 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-09-03 08:08:17 -0700
commitdd5cdb48edfd34401799056a9acf61078d773f90 (patch)
tree8e251fb4a4c196540fe9b6a6d8b13275f93a057c /Documentation/networking/ip-sysctl.txt
parentMerge tag 'dm-4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm (diff)
parentnetfilter: nf_conntrack: make nf_ct_zone_dflt built-in (diff)
downloadlinux-dev-dd5cdb48edfd34401799056a9acf61078d773f90.tar.xz
linux-dev-dd5cdb48edfd34401799056a9acf61078d773f90.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller: "Another merge window, another set of networking changes. I've heard rumblings that the lightweight tunnels infrastructure has been voted networking change of the year. But what do I know? 1) Add conntrack support to openvswitch, from Joe Stringer. 2) Initial support for VRF (Virtual Routing and Forwarding), which allows the segmentation of routing paths without using multiple devices. There are some semantic kinks to work out still, but this is a reasonably strong foundation. From David Ahern. 3) Remove spinlock fro act_bpf fast path, from Alexei Starovoitov. 4) Ignore route nexthops with a link down state in ipv6, just like ipv4. From Andy Gospodarek. 5) Remove spinlock from fast path of act_gact and act_mirred, from Eric Dumazet. 6) Document the DSA layer, from Florian Fainelli. 7) Add netconsole support to bcmgenet, systemport, and DSA. Also from Florian Fainelli. 8) Add Mellanox Switch Driver and core infrastructure, from Jiri Pirko. 9) Add support for "light weight tunnels", which allow for encapsulation and decapsulation without bearing the overhead of a full blown netdevice. From Thomas Graf, Jiri Benc, and a cast of others. 10) Add Identifier Locator Addressing support for ipv6, from Tom Herbert. 11) Support fragmented SKBs in iwlwifi, from Johannes Berg. 12) Allow perf PMUs to be accessed from eBPF programs, from Kaixu Xia. 13) Add BQL support to 3c59x driver, from Loganaden Velvindron. 14) Stop using a zero TX queue length to mean that a device shouldn't have a qdisc attached, use an explicit flag instead. From Phil Sutter. 15) Use generic geneve netdevice infrastructure in openvswitch, from Pravin B Shelar. 16) Add infrastructure to avoid re-forwarding a packet in software that was already forwarded by a hardware switch. From Scott Feldman. 17) Allow AF_PACKET fanout function to be implemented in a bpf program, from Willem de Bruijn" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1458 commits) netfilter: nf_conntrack: make nf_ct_zone_dflt built-in netfilter: nf_dup{4, 6}: fix build error when nf_conntrack disabled net: fec: clear receive interrupts before processing a packet ipv6: fix exthdrs offload registration in out_rt path xen-netback: add support for multicast control bgmac: Update fixed_phy_register() sock, diag: fix panic in sock_diag_put_filterinfo flow_dissector: Use 'const' where possible. flow_dissector: Fix function argument ordering dependency ixgbe: Resolve "initialized field overwritten" warnings ixgbe: Remove bimodal SR-IOV disabling ixgbe: Add support for reporting 2.5G link speed ixgbe: fix bounds checking in ixgbe_setup_tc for 82598 ixgbe: support for ethtool set_rxfh ixgbe: Avoid needless PHY access on copper phys ixgbe: cleanup to use cached mask value ixgbe: Remove second instance of lan_id variable ixgbe: use kzalloc for allocating one thing flow: Move __get_hash_from_flowi{4,6} into flow_dissector.c ixgbe: Remove unused PCI bus types ...
Diffstat (limited to 'Documentation/networking/ip-sysctl.txt')
-rw-r--r--Documentation/networking/ip-sysctl.txt70
1 files changed, 63 insertions, 7 deletions
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index 5fae7704daab..ebe94f2cab98 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -586,6 +586,21 @@ tcp_min_tso_segs - INTEGER
if available window is too small.
Default: 2
+tcp_pacing_ss_ratio - INTEGER
+ sk->sk_pacing_rate is set by TCP stack using a ratio applied
+ to current rate. (current_rate = cwnd * mss / srtt)
+ If TCP is in slow start, tcp_pacing_ss_ratio is applied
+ to let TCP probe for bigger speeds, assuming cwnd can be
+ doubled every other RTT.
+ Default: 200
+
+tcp_pacing_ca_ratio - INTEGER
+ sk->sk_pacing_rate is set by TCP stack using a ratio applied
+ to current rate. (current_rate = cwnd * mss / srtt)
+ If TCP is in congestion avoidance phase, tcp_pacing_ca_ratio
+ is applied to conservatively probe for bigger throughput.
+ Default: 120
+
tcp_tso_win_divisor - INTEGER
This allows control over what percentage of the congestion window
can be consumed by a single TSO frame.
@@ -1181,6 +1196,16 @@ tag - INTEGER
Allows you to write a number, which can be used as required.
Default value is 0.
+xfrm4_gc_thresh - INTEGER
+ The threshold at which we will start garbage collecting for IPv4
+ destination cache entries. At twice this value the system will
+ refuse new allocations.
+
+igmp_link_local_mcast_reports - BOOLEAN
+ Enable IGMP reports for link local multicast groups in the
+ 224.0.0.X range.
+ Default TRUE
+
Alexey Kuznetsov.
kuznet@ms2.inr.ac.ru
@@ -1215,14 +1240,20 @@ flowlabel_consistency - BOOLEAN
FALSE: disabled
Default: TRUE
-auto_flowlabels - BOOLEAN
- Automatically generate flow labels based based on a flow hash
- of the packet. This allows intermediate devices, such as routers,
- to idenfify packet flows for mechanisms like Equal Cost Multipath
+auto_flowlabels - INTEGER
+ Automatically generate flow labels based on a flow hash of the
+ packet. This allows intermediate devices, such as routers, to
+ identify packet flows for mechanisms like Equal Cost Multipath
Routing (see RFC 6438).
- TRUE: enabled
- FALSE: disabled
- Default: false
+ 0: automatic flow labels are completely disabled
+ 1: automatic flow labels are enabled by default, they can be
+ disabled on a per socket basis using the IPV6_AUTOFLOWLABEL
+ socket option
+ 2: automatic flow labels are allowed, they may be enabled on a
+ per socket basis using the IPV6_AUTOFLOWLABEL socket option
+ 3: automatic flow labels are enabled and enforced, they cannot
+ be disabled by the socket option
+ Default: 1
flowlabel_state_ranges - BOOLEAN
Split the flow label number space into two ranges. 0-0x7FFFF is
@@ -1340,6 +1371,14 @@ accept_ra_from_local - BOOLEAN
disabled if accept_ra_from_local is disabled
on a specific interface.
+accept_ra_min_hop_limit - INTEGER
+ Minimum hop limit Information in Router Advertisement.
+
+ Hop limit Information in Router Advertisement less than this
+ variable shall be ignored.
+
+ Default: 1
+
accept_ra_pinfo - BOOLEAN
Learn Prefix Information in Router Advertisement.
@@ -1435,6 +1474,11 @@ mtu - INTEGER
Default Maximum Transfer Unit
Default: 1280 (IPv6 required minimum)
+ip_nonlocal_bind - BOOLEAN
+ If set, allows processes to bind() to non-local IPv6 addresses,
+ which can be quite useful - but may break some applications.
+ Default: 0
+
router_probe_interval - INTEGER
Minimum interval (in seconds) between Router Probing described
in RFC4191.
@@ -1455,6 +1499,13 @@ router_solicitations - INTEGER
routers are present.
Default: 3
+use_oif_addrs_only - BOOLEAN
+ When enabled, the candidate source addresses for destinations
+ routed via this interface are restricted to the set of addresses
+ configured on this interface (vis. RFC 6724, section 4).
+
+ Default: false
+
use_tempaddr - INTEGER
Preference for Privacy Extensions (RFC3041).
<= 0 : disable Privacy Extensions
@@ -1591,6 +1642,11 @@ ratelimit - INTEGER
otherwise the minimal space between responses in milliseconds.
Default: 1000
+xfrm6_gc_thresh - INTEGER
+ The threshold at which we will start garbage collecting for IPv6
+ destination cache entries. At twice this value the system will
+ refuse new allocations.
+
IPv6 Update by:
Pekka Savola <pekkas@netcore.fi>