From 5c6c1480b3b01c2573cd52a85a01881aaa42b53f Mon Sep 17 00:00:00 2001 From: Tiwei Bie Date: Fri, 22 Feb 2019 10:42:09 +0800 Subject: [PATCH] doc: improve vhost zero copy guide Highlight that vhost zero copy mbufs should be consumed as soon as possible. Signed-off-by: Tiwei Bie Reviewed-by: Maxime Coquelin --- doc/guides/prog_guide/vhost_lib.rst | 3 +++ 1 file changed, 3 insertions(+) diff --git a/doc/guides/prog_guide/vhost_lib.rst b/doc/guides/prog_guide/vhost_lib.rst index c77df338fa..a86c07a620 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 -- 2.20.1