From 01431a8790fecaceb27eca813877218b2aa59dc8 Mon Sep 17 00:00:00 2001 From: Zhirun Yan Date: Thu, 20 Dec 2018 11:01:30 +0000 Subject: [PATCH] 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 Acked-by: Qi Zhang --- doc/guides/nics/i40e.rst | 15 +++++++++------ doc/guides/rel_notes/release_19_02.rst | 8 ++++++++ 2 files changed, 17 insertions(+), 6 deletions(-) diff --git a/doc/guides/nics/i40e.rst b/doc/guides/nics/i40e.rst index bfacbd1175..6aceb53ea6 100644 --- 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 a67566e8b5..243e687acc 100644 --- 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. -- 2.20.1