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authorTiwei Bie <tiwei.bie@intel.com>2019-02-22 10:42:09 +0800
committerFerruh Yigit <ferruh.yigit@intel.com>2019-03-01 18:17:36 +0100
commit5c6c1480b3b01c2573cd52a85a01881aaa42b53f (patch)
tree6c5e7acecfa1397dc6362dd7383117bd6616f340 /doc
parent2a2904fa9cc44493bcea495bab944b032b24f7cb (diff)
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doc: improve vhost zero copy guide
Highlight that vhost zero copy mbufs should be consumed as soon as possible. Signed-off-by: Tiwei Bie <tiwei.bie@intel.com> Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Diffstat (limited to 'doc')
-rw-r--r--doc/guides/prog_guide/vhost_lib.rst3
1 files changed, 3 insertions, 0 deletions
diff --git a/doc/guides/prog_guide/vhost_lib.rst b/doc/guides/prog_guide/vhost_lib.rst
index c77df33..a86c07a 100644
--- a/doc/guides/prog_guide/vhost_lib.rst
+++ b/doc/guides/prog_guide/vhost_lib.rst
@@ -92,6 +92,9 @@ The following is an overview of some key Vhost API functions:
to use vfio-pci driver, please insert vfio-pci kernel module in noiommu
mode.
+ * The consumer of zero copy mbufs should consume these mbufs as soon as
+ possible, otherwise it may block the operations in vhost.
+
- ``RTE_VHOST_USER_IOMMU_SUPPORT``
IOMMU support will be enabled when this flag is set. It is disabled by