doc: update queue number per VF for i40e

Updated the doc and release notes on the support for requesting more
queues.

Signed-off-by: Zhirun Yan <zhirun.yan@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>

diff --git a/doc/guides/nics/i40e.rst b/doc/guides/nics/i40e.rst
index bfacbd1..6aceb53 100644 (file)
--- a/doc/guides/nics/i40e.rst
+++ b/doc/guides/nics/i40e.rst
@@ -129,13 +129,16 @@ Please note that enabling debugging options may affect system performance.
 Runtime Config Options
 ~~~~~~~~~~~~~~~~~~~~~~
 
-- ``Number of Queues per VF`` (default ``4``)
+- ``Reserved number of Queues per VF`` (default ``4``)
+
+  The number of reserved queue per VF is determined by its host PF. If the
+  PCI address of an i40e PF is aaaa:bb.cc, the number of reserved queues per
+  VF can be configured with EAL parameter like -w aaaa:bb.cc,queue-num-per-vf=n.
+  The value n can be 1, 2, 4, 8 or 16. If no such parameter is configured, the
+  number of reserved queues per VF is 4 by default. If VF request more than
+  reserved queues per VF, PF will able to allocate max to 16 queues after a VF
+  reset.
 
-  The number of queue per VF is determined by its host PF. If the PCI address
-  of an i40e PF is aaaa:bb.cc, the number of queues per VF can be configured
-  with EAL parameter like -w aaaa:bb.cc,queue-num-per-vf=n. The value n can be
-  1, 2, 4, 8 or 16. If no such parameter is configured, the number of queues
-  per VF is 4 by default.
 
 - ``Support multiple driver`` (default ``disable``)
 

diff --git a/doc/guides/rel_notes/release_19_02.rst b/doc/guides/rel_notes/release_19_02.rst
index a67566e..243e687 100644 (file)
--- a/doc/guides/rel_notes/release_19_02.rst
+++ b/doc/guides/rel_notes/release_19_02.rst
@@ -80,6 +80,14 @@ New Features
   * Added the handler to get firmware version string.
   * Added support for multicast filtering.
 
+* **Added dynamic queues allocation support for i40e VF.**
+
+  Previously, available queues of VF is reserved by PF at initialize stage.
+  Now both DPDK PF and Kernel PF (>=2.1.14) will support dynamic queue
+  allocation. At runtime, when VF request more queue number exceed the initial
+  reserved amount, PF can allocate up to 16 queues as the request after a VF
+  reset.
+
 * **Added ICE net PMD**
 
   Added the new ``ice`` net driver for Intel® Ethernet Network Adapters E810.