[dpdk-dev] [PATCH] doc: update i40e guide
Beilei Xing
beilei.xing at intel.com
Sun Feb 4 04:40:57 CET 2018
This patch updates the i40e guide with new device
parameter support-multi-driver.
Signed-off-by: Beilei Xing <beilei.xing at intel.com>
Cc: stable at dpdk.org
---
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 166f447..a83af6d 100644
--- a/doc/guides/nics/i40e.rst
+++ b/doc/guides/nics/i40e.rst
@@ -136,6 +136,17 @@ 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
------------------------------
--
2.5.5
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