ovs-rcu: Comment fixes.

[cascardo/ovs.git] / FAQ.md

diff --git a/FAQ.md b/FAQ.md
index d283c1a..045eed1 100644 (file)
--- a/FAQ.md
+++ b/FAQ.md
@@ -156,7 +156,7 @@ A: The following table lists the Linux kernel versions against which the
 |    2.0.x     | 2.6.32 to 3.10
 |    2.1.x     | 2.6.32 to 3.11
 |    2.3.x     | 2.6.32 to 3.14
-|    2.4.x     | 2.6.32 to 3.19
+|    2.4.x     | 2.6.32 to 4.0
 
    Open vSwitch userspace should also work with the Linux kernel module
    built into Linux 3.3 and later.
@@ -360,6 +360,25 @@ A: Yes.  How you configure it depends on what you mean by "promiscuous
     SPAN, see "How do I configure a port as a SPAN port, that is,
     enable mirroring of all traffic to that port?"
 
+### Q: How do I configure a DPDK port as an access port?
+
+A: Firstly, you must have a DPDK-enabled version of Open vSwitch.
+
+   If your version is DPDK-enabled it will support the --dpdk
+   argument on the command line and will display lines with
+   "EAL:..." during startup when --dpdk is supplied.
+
+   Secondly, when adding a DPDK port, unlike a system port, the
+   type for the interface must be specified. For example;
+
+       ovs-vsctl add-br br0
+       ovs-vsctl add-port br0 dpdk0 -- set Interface dpdk0 type=dpdk
+
+   Finally, it is required that DPDK port names begin with 'dpdk'.
+
+   See [INSTALL.DPDK.md] for more information on enabling and using DPDK with
+   Open vSwitch.
+
 ### Q: How do I configure a VLAN as an RSPAN VLAN, that is, enable mirroring of all traffic to that VLAN?
 
 A: The following commands configure br0 with eth0 as a trunk port and
@@ -649,6 +668,9 @@ A: More than likely, you've looped your network.  Probably, eth0 and
      documentation on the Port table in ovs-vswitchd.conf.db(5)
      for all the details.
 
+     Configuration for DPDK-enabled interfaces is slightly less
+     straightforward: see [INSTALL.DPDK.md].
+
    - Perhaps you don't actually need eth0 and eth1 to be on the
      same bridge.  For example, if you simply want to be able to
      connect each of them to virtual machines, then you can put
@@ -1897,3 +1919,4 @@ http://openvswitch.org/
 [WHY-OVS.md]:WHY-OVS.md
 [INSTALL.md]:INSTALL.md
 [OPENFLOW-1.1+.md]:OPENFLOW-1.1+.md
+[INSTALL.DPDK.md]:INSTALL.DPDK.md