Thanks for putting this together. Like we discussed offline, a lot of the hyper-v values are subject to change in the near future, but the matrix represents that state of the Hyper-V datapath as of today.
Acked-by: Nithin Raju <nit...@vmware.com> -----Original Message----- From: Daniele Di Proietto <diproiet...@vmware.com> Date: Monday, December 7, 2015 at 1:00 PM To: "dev@openvswitch.org" <dev@openvswitch.org> Cc: Daniele Di Proietto <diproiet...@vmware.com>, Nithin Raju <nit...@vmware.com> Subject: [PATCH] FAQ: Add entry about different datapaths features. >This is an easy way to keep track of the features supported by the >different datapaths. > >Nithin helped filling the list for the Hyper-V port. > >CC: Nithin Raju <nit...@vmware.com> >Signed-off-by: Daniele Di Proietto <diproiet...@vmware.com> >--- > FAQ.md | 64 >++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 64 insertions(+) > >diff --git a/FAQ.md b/FAQ.md >index 8397e0f..aaf2026 100644 >--- a/FAQ.md >+++ b/FAQ.md >@@ -188,6 +188,70 @@ A: Features are gradually introduced into the >upstream kernel so unless > | STT | 2.4+ | 3.5+ > | Conntrack | 2.5+ | 3.10+ > >+### Q: Are all features available with all datapaths? >+ >+A: Open vSwitch supports different datapaths on different platforms. >Each >+ datapath has a different feature set: the following tables try to >summarize >+ the status. >+ >+ Supported datapaths: >+ >+ * *Linux upstream*: The datapath implemented by the kernel module >shipped >+ with the upstream Linux kernel. The numbers here >refer >+ to the minimum Linux version that has an >openvswitch >+ module supporting a feature. >+ >+ * *Linux OVS tree*: The datapath implemented by the Linux kernel >module >+ distributed with the OVS source tree. The numbers >here >+ refer to the minimum Linux kernel version against >which >+ the module can be compiled to support a feature. >+ >+ * *Userspace*: Also known as DPDK, dpif-netdev or dummy datapath. >+ >+ * *Hyper-V*: Also known as the windows datapath. >+ >+ The following table lists the datapath supported features from >+ an Open vSwitch user's perspective. >+ >+Feature | Linux upstream | Linux OVS tree | Userspace | >Hyper-V | >+----------------------|:--------------:|:--------------:|:---------:|:--- >----:| >+Connection tracking | 4.3 | 3.10 | NO | >NO | >+Tunnel - LISP | NO | YES | NO | >NO | >+Tunnel - STT | NO | 3.5 | NO | >YES | >+Tunnel - GRE | 3.11 | YES | YES | >NO | >+Tunnel - VXLAN | 3.12 | YES | YES | >YES | >+Tunnel - Geneve | 3.18 | YES | YES | >NO | >+QoS | YES | YES | NO | >NO | >+sFlow | YES | YES | YES | >NO | >+Set action | YES | YES | YES | >PARTIAL | >+NIC Bonding | YES | YES | YES | >NO | >+Multiple VTEPs | YES | YES | YES | >NO | >+ >+ **Notes:** >+ * Only a limited set of flow fields is modifiable via the set action >by the >+ Hyper-V datapath. >+ * The Hyper-V datapath only supports one physical NIC per datapath. >This is >+ why bonding is not supported. >+ * The Hyper-V datapath can have at most one IP address configured as a >+ tunnel endpoint. >+ >+ The following table lists features that do not *directly* impact an >+ Open vSwitch user, e.g. because their absence can be hidden by the >ofproto >+ layer (usually this comes with a performance penalty). >+ >+Feature | Linux upstream | Linux OVS tree | Userspace | >Hyper-V | >+----------------------|:--------------:|:--------------:|:---------:|:--- >----:| >+SCTP flows | 3.12 | YES | YES | >YES | >+MPLS | 3.19 | YES | YES | >NO | >+UFID | 4.0 | YES | YES | >NO | >+Megaflows | 3.12 | YES | YES | >NO | >+Masked set action | 4.0 | YES | YES | >NO | >+Recirculation | 3.19 | YES | YES | >NO | >+TCP flags matching | 3.13 | YES | YES | >NO | >+Validate flow actions | YES | YES | N/A | >NO | >+Multiple datapaths | YES | YES | YES | >NO | >+Tunnel TSO - STT | N/A | YES | NO | >YES | >+ > ### Q: I get an error like this when I configure Open vSwitch: > > configure: error: Linux kernel in <dir> is version <x>, but >-- >2.1.4 > _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
