net/mlx5: remove unnecessary structure initializers

[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 5e7f24c..df4d6f9 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
 .. 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.
 
 
 Then start testpmd for packet forwarding testing.
 


@@ -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.
 
 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
 -------------
 
 Common Issues
 -------------
 


@@ -181,3 +185,19 @@ Common Issues
 * Failed to build DPDK in VM
 
   Make sure "-cpu host" QEMU option is given.
 * Failed to build DPDK in VM
 
   Make sure "-cpu host" QEMU option is given.

+
+* Device start fails if NIC's max queues > the default number of 128
+
+  mbuf pool size is dependent on the MAX_QUEUES configuration, if NIC's
+  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.