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[v6,3/4] doc: update vhost sample doc for vhost async data path

Message ID 20201016042909.27542-4-Cheng1.jiang@intel.com (mailing list archive)
State Superseded, archived
Delegated to: Maxime Coquelin
Headers show
Series add async data path in vhost sample | expand


Context Check Description
ci/checkpatch success coding style OK

Commit Message

Cheng Jiang Oct. 16, 2020, 4:29 a.m. UTC
Add vhost async driver arguments information for vhost async data
path in vhost sample application.

Signed-off-by: Cheng Jiang <Cheng1.jiang@intel.com>
 doc/guides/sample_app_ug/vhost.rst | 11 +++++++++++
 1 file changed, 11 insertions(+)
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diff --git a/doc/guides/sample_app_ug/vhost.rst b/doc/guides/sample_app_ug/vhost.rst
index b7ed4f8bd..0f4f70945 100644
--- a/doc/guides/sample_app_ug/vhost.rst
+++ b/doc/guides/sample_app_ug/vhost.rst
@@ -162,6 +162,17 @@  enabled and cannot be disabled.
 A very simple vhost-user net driver which demonstrates how to use the generic
 vhost APIs will be used when this option is given. It is disabled by default.
+This parameter is used to specify DMA type for async vhost-user net driver which
+demonstrates how to use the async vhost APIs. It's used in combination with dmas.
+This parameter is used to specify the assigned DMA device of a vhost device.
+Async vhost-user net driver will be used if --dmas is set. For example
+--dmas [txd0@00:04.0,txd1@00:04.1] means use DMA channel 00:04.0 for vhost
+device 0 enqueue operation and use DMA channel 00:04.1 for vhost device 1
+enqueue operation.
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