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authorLinus Torvalds <torvalds@linux-foundation.org>2014-06-12 14:27:40 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-06-12 14:27:40 -0700
commitf9da455b93f6ba076935b4ef4589f61e529ae046 (patch)
tree3c4e69ce1ba1d6bf65915b97a76ca2172105b278 /Documentation/networking/bonding.txt
parent0e04c641b199435f3779454055f6a7de258ecdfc (diff)
parente5eca6d41f53db48edd8cf88a3f59d2c30227f8e (diff)
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller: 1) Seccomp BPF filters can now be JIT'd, from Alexei Starovoitov. 2) Multiqueue support in xen-netback and xen-netfront, from Andrew J Benniston. 3) Allow tweaking of aggregation settings in cdc_ncm driver, from Bjørn Mork. 4) BPF now has a "random" opcode, from Chema Gonzalez. 5) Add more BPF documentation and improve test framework, from Daniel Borkmann. 6) Support TCP fastopen over ipv6, from Daniel Lee. 7) Add software TSO helper functions and use them to support software TSO in mvneta and mv643xx_eth drivers. From Ezequiel Garcia. 8) Support software TSO in fec driver too, from Nimrod Andy. 9) Add Broadcom SYSTEMPORT driver, from Florian Fainelli. 10) Handle broadcasts more gracefully over macvlan when there are large numbers of interfaces configured, from Herbert Xu. 11) Allow more control over fwmark used for non-socket based responses, from Lorenzo Colitti. 12) Do TCP congestion window limiting based upon measurements, from Neal Cardwell. 13) Support busy polling in SCTP, from Neal Horman. 14) Allow RSS key to be configured via ethtool, from Venkata Duvvuru. 15) Bridge promisc mode handling improvements from Vlad Yasevich. 16) Don't use inetpeer entries to implement ID generation any more, it performs poorly, from Eric Dumazet. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1522 commits) rtnetlink: fix userspace API breakage for iproute2 < v3.9.0 tcp: fixing TLP's FIN recovery net: fec: Add software TSO support net: fec: Add Scatter/gather support net: fec: Increase buffer descriptor entry number net: fec: Factorize feature setting net: fec: Enable IP header hardware checksum net: fec: Factorize the .xmit transmit function bridge: fix compile error when compiling without IPv6 support bridge: fix smatch warning / potential null pointer dereference via-rhine: fix full-duplex with autoneg disable bnx2x: Enlarge the dorq threshold for VFs bnx2x: Check for UNDI in uncommon branch bnx2x: Fix 1G-baseT link bnx2x: Fix link for KR with swapped polarity lane sctp: Fix sk_ack_backlog wrap-around problem net/core: Add VF link state control policy net/fsl: xgmac_mdio is dependent on OF_MDIO net/fsl: Make xgmac_mdio read error message useful net_sched: drr: warn when qdisc is not work conserving ...
Diffstat (limited to 'Documentation/networking/bonding.txt')
-rw-r--r--Documentation/networking/bonding.txt44
1 files changed, 36 insertions, 8 deletions
diff --git a/Documentation/networking/bonding.txt b/Documentation/networking/bonding.txt
index a383c00..9c723ec 100644
--- a/Documentation/networking/bonding.txt
+++ b/Documentation/networking/bonding.txt
@@ -585,13 +585,19 @@ mode
balance-tlb or 5
Adaptive transmit load balancing: channel bonding that
- does not require any special switch support. The
- outgoing traffic is distributed according to the
- current load (computed relative to the speed) on each
- slave. Incoming traffic is received by the current
- slave. If the receiving slave fails, another slave
- takes over the MAC address of the failed receiving
- slave.
+ does not require any special switch support.
+
+ In tlb_dynamic_lb=1 mode; the outgoing traffic is
+ distributed according to the current load (computed
+ relative to the speed) on each slave.
+
+ In tlb_dynamic_lb=0 mode; the load balancing based on
+ current load is disabled and the load is distributed
+ only using the hash distribution.
+
+ Incoming traffic is received by the current slave.
+ If the receiving slave fails, another slave takes over
+ the MAC address of the failed receiving slave.
Prerequisite:
@@ -736,6 +742,28 @@ primary_reselect
This option was added for bonding version 3.6.0.
+tlb_dynamic_lb
+
+ Specifies if dynamic shuffling of flows is enabled in tlb
+ mode. The value has no effect on any other modes.
+
+ The default behavior of tlb mode is to shuffle active flows across
+ slaves based on the load in that interval. This gives nice lb
+ characteristics but can cause packet reordering. If re-ordering is
+ a concern use this variable to disable flow shuffling and rely on
+ load balancing provided solely by the hash distribution.
+ xmit-hash-policy can be used to select the appropriate hashing for
+ the setup.
+
+ The sysfs entry can be used to change the setting per bond device
+ and the initial value is derived from the module parameter. The
+ sysfs entry is allowed to be changed only if the bond device is
+ down.
+
+ The default value is "1" that enables flow shuffling while value "0"
+ disables it. This option was added in bonding driver 3.7.1
+
+
updelay
Specifies the time, in milliseconds, to wait before enabling a
@@ -769,7 +797,7 @@ use_carrier
xmit_hash_policy
Selects the transmit hash policy to use for slave selection in
- balance-xor and 802.3ad modes. Possible values are:
+ balance-xor, 802.3ad, and tlb modes. Possible values are:
layer2
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