X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=doc%2Fguides%2Fsample_app_ug%2Fvhost.rst;h=bacf7898f974bc506705d09f3818e1ddc2de9a50;hb=769b2de7fb528607bee5cc443dbcddb905a8f61e;hp=a71ada6549fa94388205455f17c2785ad0e99719;hpb=d629b7b5fe812f0040b83d27d2ada33b003aa918;p=dpdk.git

diff --git a/doc/guides/sample_app_ug/vhost.rst b/doc/guides/sample_app_ug/vhost.rst
index a71ada6549..bacf7898f9 100644
--- a/doc/guides/sample_app_ug/vhost.rst
+++ b/doc/guides/sample_app_ug/vhost.rst
@@ -38,7 +38,7 @@ Start the vswitch example
 
 .. code-block:: console
 
-        ./vhost-switch -l 0-3 -n 4 --socket-mem 1024  \
+        ./dpdk-vhost-switch -l 0-3 -n 4 --socket-mem 1024  \
              -- --socket-file /tmp/sock0 --client \
              ...
 
@@ -78,13 +78,13 @@ could be done by:
 .. code-block:: console
 
    modprobe uio_pci_generic
-   $RTE_SDK/usertools/dpdk-devbind.py -b uio_pci_generic 0000:00:04.0
+   dpdk/usertools/dpdk-devbind.py -b uio_pci_generic 0000:00:04.0
 
 Then start testpmd for packet forwarding testing.
 
 .. code-block:: console
 
-    ./x86_64-native-gcc/app/testpmd -l 0-1 -- -i
+    ./<build_dir>/app/dpdk-testpmd -l 0-1 -- -i
     > start tx_first
 
 Inject packets
@@ -192,12 +192,14 @@ Common Issues
   max queue number is larger than 128, device start will fail due to
   insufficient mbuf.
 
-  Change the default number to make it work as below, just set the number
-  according to the NIC's property. ::
-
-      make EXTRA_CFLAGS="-DMAX_QUEUES=320"
-
 * Option "builtin-net-driver" is incompatible with QEMU
 
   QEMU vhost net device start will fail if protocol feature is not negotiated.
   DPDK virtio-user pmd can be the replacement of QEMU.
+
+* Device start fails when enabling "builtin-net-driver" without memory
+  pre-allocation
+
+  The builtin example doesn't support dynamic memory allocation. When vhost
+  backend enables "builtin-net-driver", "--socket-mem" option should be
+  added at virtio-user pmd side as a startup item.