doc: add how to set VF MAC address on ixgbe

Add the description of how to add a MAC address for a VF
from PF on ixgbe.

Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>

diff --git a/doc/guides/nics/ixgbe.rst b/doc/guides/nics/ixgbe.rst
index 696ff69..c687c63 100644 (file)
--- a/doc/guides/nics/ixgbe.rst
+++ b/doc/guides/nics/ixgbe.rst
@@ -227,6 +227,17 @@ So when the user sets different MTUs on PF and VF ports in one physical port,
 the real MTU for all these PF and VF ports is the largest value set.
 This behavior is based on the kernel driver behavior.
 
+VF MAC address setting
+~~~~~~~~~~~~~~~~~~~~~~
+
+On ixgbe, the concept of "pool" can be used for different things depending on
+the mode. In VMDq mode, "pool" means a VMDq pool. In IOV mode, "pool" means a
+VF.
+
+There is no RTE API to add a VF's MAC address from the PF. On ixgbe, the
+``rte_eth_dev_mac_addr_add()`` function can be used to add a VF's MAC address,
+as a workaround.
+
 
 Supported Chipsets and NICs
 ---------------------------