ipsec: support multi-segment packets

[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 9112e78..a71ada6 100644 (file)
--- a/doc/guides/sample_app_ug/vhost.rst
+++ b/doc/guides/sample_app_ug/vhost.rst
@@ -78,7 +78,7 @@ 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
+   $RTE_SDK/usertools/dpdk-devbind.py -b uio_pci_generic 0000:00:04.0
 
 Then start testpmd for packet forwarding testing.
 
@@ -116,7 +116,7 @@ will create it. Put simply, it's the server to create the socket file.
 The vm2vm parameter sets the mode of packet switching between guests in
 the host.
 
-- 0 disables vm2vm, impling that VM's packets will always go to the NIC port.
+- 0 disables vm2vm, implying that VM's packets will always go to the NIC port.
 - 1 means a normal mac lookup packet routing.
 - 2 means hardware mode packet forwarding between guests, it allows packets
   go to the NIC port, hardware L2 switch will determine which guest the
@@ -148,7 +148,7 @@ default value is 15.
 
 **--dequeue-zero-copy**
 Dequeue zero copy will be enabled when this option is given. it is worth to
-note that if NIC is binded to driver with iommu enabled, dequeue zero copy
+note that if NIC is bound to driver with iommu enabled, dequeue zero copy
 cannot work at VM2NIC mode (vm2vm=0) due to currently we don't setup iommu
 dma mapping for guest memory.
 
@@ -158,6 +158,10 @@ when disabling VLAN strip. Such feature, which heavily depends on hardware,
 should be removed from this example to reduce confusion. Now, VLAN strip is
 enabled and cannot be disabled.
 
+**--builtin-net-driver**
+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.
+
 Common Issues
 -------------
 
@@ -192,3 +196,8 @@ Common Issues
   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.