doc: fix spelling

[dpdk.git] / doc / guides / sample_app_ug / vhost.rst

diff --git a/doc/guides/sample_app_ug/vhost.rst b/doc/guides/sample_app_ug/vhost.rst
index bacf789..9afde9c 100644 (file)
--- a/doc/guides/sample_app_ug/vhost.rst
+++ b/doc/guides/sample_app_ug/vhost.rst
@@ -72,7 +72,7 @@ Run testpmd inside guest
 ~~~~~~~~~~~~~~~~~~~~~~~~
 
 Make sure you have DPDK built inside the guest. Also make sure the
-corresponding virtio-net PCI device is bond to a uio driver, which
+corresponding virtio-net PCI device is bond to a UIO driver, which
 could be done by:
 
 .. code-block:: console
@@ -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.
 
+**--dma-type**
+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.
+
+**--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.
+
 Common Issues
 -------------
 
@@ -177,7 +188,7 @@ Common Issues
 
   .. code-block:: console
 
-      cat /sys/kernel/mm/hugepages/hugepages-<pagesize>/nr_hugepages
+     dpdk-hugepages.py --show
 
   The command above indicates how many hugepages are free to support QEMU's
   allocation request.