From 68d35933a960442a373346b76f2ad6de0eae27f9 Mon Sep 17 00:00:00 2001 From: Beilei Xing Date: Sun, 4 Feb 2018 11:40:57 +0800 Subject: [PATCH] doc: add multi-driver option in i40e guide This patch updates the i40e guide with new device parameter of 'support-multi-driver'. Signed-off-by: Beilei Xing Acked-by: Marko Kovacevic Acked-by: John McNamara --- doc/guides/nics/i40e.rst | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/doc/guides/nics/i40e.rst b/doc/guides/nics/i40e.rst index 3bef88f5c4..e1b8083c1e 100644 --- a/doc/guides/nics/i40e.rst +++ b/doc/guides/nics/i40e.rst @@ -109,6 +109,17 @@ Runtime Config Options 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``) + + There was a multiple driver support issue during use of 700 series Ethernet + Adapter with both Linux kernel and DPDK PMD. To fix this issue, ``devargs`` + parameter ``support-multi-driver`` is introduced, for example:: + + -w 84:00.0,support-multi-driver=1 + + With the above configuration, DPDK PMD will not change global registers, and + will switch PF interrupt from IntN to Int0 to avoid interrupt conflict between + DPDK and Linux Kernel. Driver compilation and testing ------------------------------ -- 2.20.1