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| author |   Luca Boccassi <luca.boccassi@gmail.com> | 2018-11-01 11:59:50 +0000 |
|---|---|---|
| committer | Luca Boccassi <luca.boccassi@gmail.com> | 2018-11-01 12:00:19 +0000 |
| commit | 8d01b9cd70a67cdafd5b965a70420c3bd7fb3f82 (patch) | |
| tree | 208e3bc33c220854d89d010e3abf720a2e62e546 /doc/guides/nics/tap.rst | |
| parent | b63264c8342e6a1b6971c79550d2af2024b6a4de (diff) | |
New upstream version 18.11-rc1upstream/18.11-rc1
Change-Id: Iaa71986dd6332e878d8f4bf493101b2bbc6313bb
Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>
Diffstat (limited to 'doc/guides/nics/tap.rst')
| -rw-r--r-- | doc/guides/nics/tap.rst | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/doc/guides/nics/tap.rst b/doc/guides/nics/tap.rst index 27148681..9a3d7b34 100644 --- a/doc/guides/nics/tap.rst +++ b/doc/guides/nics/tap.rst @@ -152,6 +152,22 @@ Distribute IPv4 TCP packets using RSS to a given MAC address over queues 0-3:: testpmd> flow create 0 priority 4 ingress pattern eth dst is 0a:0b:0c:0d:0e:0f \ / ipv4 / tcp / end actions rss queues 0 1 2 3 end / end +Multi-process sharing +--------------------- + +It is possible to attach an existing TAP device in a secondary process, +by declaring it as a vdev with the same name as in the primary process, +and without any parameter. + +The port attached in a secondary process will give access to the +statistics and the queues. +Therefore it can be used for monitoring or Rx/Tx processing. + +The IPC synchronization of Rx/Tx queues is currently limited: + + - Maximum 8 queues shared + - Synchronized on probing, but not on later port update + Example ------- |