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author | Christian Ehrhardt <christian.ehrhardt@canonical.com> | 2018-06-01 09:09:08 +0200 |
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committer | Christian Ehrhardt <christian.ehrhardt@canonical.com> | 2018-06-04 15:56:02 +0200 |
commit | 15dedf321036ae67c61f35a3ab55de767b07801f (patch) | |
tree | 08e18a1b8bb1339a8a8b68802fe4c4ad09b9cdfb /doc/guides/nics/virtio.rst | |
parent | 9f3a8cb4cfe59ea63e267f69700fb0fde13d7dd3 (diff) |
New upstream version 18.05upstream-18.05-stable
Change-Id: Ib515da8d5db1114f07a5fe26239d1c2061007c1c
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Diffstat (limited to 'doc/guides/nics/virtio.rst')
-rw-r--r-- | doc/guides/nics/virtio.rst | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/doc/guides/nics/virtio.rst b/doc/guides/nics/virtio.rst index ca09cd20..a42d1bb3 100644 --- a/doc/guides/nics/virtio.rst +++ b/doc/guides/nics/virtio.rst @@ -234,7 +234,7 @@ By default, the non-vector callbacks are used: Vector callbacks will be used when: -* ``txq_flags`` is set to ``VIRTIO_SIMPLE_FLAGS`` (0xF01), which implies: +* ``txmode.offloads`` is set to ``0x0``, which implies: * Single segment is specified. @@ -252,7 +252,7 @@ The corresponding callbacks are: Example of using the vector version of the virtio poll mode driver in ``testpmd``:: - testpmd -l 0-2 -n 4 -- -i --txqflags=0xF01 --rxq=1 --txq=1 --nb-cores=1 + testpmd -l 0-2 -n 4 -- -i --tx-offloads=0x0 --rxq=1 --txq=1 --nb-cores=1 Interrupt mode @@ -318,3 +318,16 @@ Here we use l3fwd-power as an example to show how to get started. $ l3fwd-power -l 0-1 -- -p 1 -P --config="(0,0,1)" \ --no-numa --parse-ptype + + +Virtio PMD arguments +-------------------- + +The user can specify below argument in devargs. + +#. ``vdpa``: + + A virtio device could also be driven by vDPA (vhost data path acceleration) + driver, and works as a HW vhost backend. This argument is used to specify + a virtio device needs to work in vDPA mode. + (Default: 0 (disabled)) |