From mboxrd@z Thu Jan 1 00:00:00 1970 From: Zhirun Yan Subject: [PATCH v9 3/3] doc: update queue number per vf for i40e Date: Thu, 20 Dec 2018 11:01:30 +0000 Message-ID: <20181220110130.37913-4-zhirun.yan@intel.com> References: <20181220110130.37913-1-zhirun.yan@intel.com> Reply-To: 20181219133743.57423-1-zhirun.yan@intel.com Cc: Zhirun Yan To: dev@dpdk.org, qi.z.zhang@intel.com Return-path: Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by dpdk.org (Postfix) with ESMTP id 436DE1B945 for ; Thu, 20 Dec 2018 04:24:44 +0100 (CET) In-Reply-To: <20181220110130.37913-1-zhirun.yan@intel.com> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Updated the doc and release notes on the support for requesting more queues. Signed-off-by: Zhirun Yan --- 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 bfacbd117..6aceb53ea 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 069f429a7..fd5dc806b 100644 --- a/doc/guides/rel_notes/release_19_02.rst +++ b/doc/guides/rel_notes/release_19_02.rst @@ -65,6 +65,14 @@ New Features Added a new performance test tool to test the compressdev PMD. The tool tests compression ratio and compression throughput. +* **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. + Removed Items ------------- -- 2.17.1