This patch adds support to remote checksum checksum offload
to VXLAN. This patch adds remcsumtx and remcsumrx to ip vxlan
configuration to enable remote checksum offload for transmit
and receive on the VXLAN tunnel.
https://tools.ietf.org/html/draft-herbert-vxlan-rco-00
Example:
ip link add name vxlan0 type vxlan id 42 group 239.1.1.1 dev eth0 \
udpcsum remcsumtx remcsumrx
Testing:
Ran single netperf over mlnx4 to illustrate the effest:
- Without RCO (UDP csum set to zero)
4335.99 Mbps
- With RCO enabled
7661.81 Mbps
Signed-off-by: Tom Herbert <tom@herbertland.com>
Add udpcsum option to enable transmitting UDP checksums when doing
VXLAN/IPv4. Add udp6zerocsumtx, and udp6zerocsumrx options to enable
sending zero checksums and receiving zero checksums in VXLAN/IPv6.
Signed-off-by: Tom Herbert <therbert@google.com>
Allow to print particular link type usage by:
ip link help [TYPE]
Currently to print usage for some link type it is needed
to use the following way:
ip link { add | del | set } type TYPE help
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Parenthesis are required else maxaddr value is a bool and thus output is always
1 when the option is set.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
When we create a tunnel on top of a link and the link specified
in cmdline doesn't exist, an error message should be shown.
Cc: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
The kernel already supports it, so add the support
to iproute2 as well.
Cc: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
This patch allows setting VXLAN destination to unicast address.
It allows that VXLAN can be used as peer-to-peer tunnel without
multicast.
v6: change back to the v3 except for using new attribute because
replacing command-line parameters breaks existing scripts,
based by Cong Wang's comments.
v5: rebase on the latest.
v4: replace "group" with "remote" based by David Stevens's comments.
v3: move a new attribute REMOTE into the last of an enum list
based by Stephen Hemminger's comments.
fix the usage to show explicitly that both "remote" and "group"
cannot be specified, based by Ben Hutchings's comments.
v2: use a new argument "remote" instead of "group" based by
Stephen Hemminger's comments.
Signed-off-by: Atzm Watanabe <atzm@stratosphere.co.jp>
This change shifts burden onto the users to choose the UDP port value.
Kernel default value is incorrect UDP port 5287 but now there is
an official assigned port for VXLAN.
The kernel can't change because of legacy compatibility
but new deployments should not use the legacy port value.
Add ability to set UDP destination port on a per device basis.
If no port is assigned, the default IANA assigned port will be used.
If you want the kernel default value, then use port 0.
Source port range option is now called 'srcport', to avoid
confusion. The old option syntax is accepted for compatiablity.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
This patch improves many error messages as follows:
- For incorrect parameters, show the value of the offending parameter, rather than just say that it is incorrect
- Rephrased messages for clarity
- Rephrased to more `mainstream' english
Signed-off-by: Kees van Reeuwijk <reeuwijk@few.vu.nl>
This patch adds a new flag to iproute2 for vxlan devices to enable
DOVE features. It also adds support for L2 and L3 switch lookup miss
netlink messages to "ip monitor".
Changes since v2: fix merge conflict
Changes since v1:
- split "dove" flag into separate feature flags:
- "proxy" for ARP reduction
- "rsc" for route short circuiting
- "l2miss" for L2 switch miss notifications
- "l3miss" for L3 switch miss notifications
Signed-off-by: David L Stevens <dlstevens@us.ibm.com>
Tom Herbert
Thomas Graf
Tom Herbert
vadimk
Nicolas Dichtel
Cong Wang
Stephen Hemminger
Atzm Watanabe
Kees van Reeuwijk
David L Stevens
Stephen Hemminger