ofpbuf: Fix trivial spelling typo.

[cascardo/ovs.git] / INSTALL.DPDK.md

diff --git a/INSTALL.DPDK.md b/INSTALL.DPDK.md
index a19a685..dca79bd 100644 (file)
--- a/INSTALL.DPDK.md
+++ b/INSTALL.DPDK.md
@@ -272,9 +272,12 @@ Performance Tuning:
 
        NIC port0 <-> OVS <-> VM <-> OVS <-> NIC port 1
 
-       The OVS log can be checked to confirm that the port/rxq assignment to
-       pmd threads is as required. This can also be checked with the following
-       commands:
+       The following command can be used to confirm that the port/rxq assignment
+       to pmd threads is as required:
+
+       `ovs-appctl dpif-netdev/pmd-rxq-show`
+
+       This can also be checked with:
 
        ```
        top -H
@@ -508,7 +511,8 @@ Adding DPDK vhost-user ports to the Switch:
 
 Following the steps above to create a bridge, you can now add DPDK vhost-user
 as a port to the vswitch. Unlike DPDK ring ports, DPDK vhost-user ports can
-have arbitrary names.
+have arbitrary names, except that forward and backward slashes are prohibited
+in the names.
 
   -  For vhost-user, the name of the port type is `dpdkvhostuser`
 
@@ -586,6 +590,22 @@ Follow the steps below to attach vhost-user port(s) to a VM.
    -device virtio-net-pci,mac=00:00:00:00:00:02,netdev=mynet2,mq=on,vectors=$v
    ```
 
+   If one wishes to use multiple queues for an interface in the guest, the
+   driver in the guest operating system must be configured to do so. It is
+   recommended that the number of queues configured be equal to '$q'.
+
+   For example, this can be done for the Linux kernel virtio-net driver with:
+
+   ```
+   ethtool -L <DEV> combined <$q>
+   ```
+
+   A note on the command above:
+
+   `-L`: Changes the numbers of channels of the specified network device
+
+   `combined`: Changes the number of multi-purpose channels.
+
 DPDK vhost-cuse:
 ----------------