From 715e96546833fa250d9c1020aa37b359d38f9f84 Mon Sep 17 00:00:00 2001 From: Yong Liu Date: Fri, 30 Oct 2015 17:23:08 +0800 Subject: [PATCH] e1000: add interrupt limitations in guide Update interrupt related limitations for e1000em nic. It only support one interrupt source and not support auto-clear. Signed-off-by: Marvin Liu Acked-by: John McNamara --- doc/guides/nics/e1000em.rst | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/doc/guides/nics/e1000em.rst b/doc/guides/nics/e1000em.rst index fedafad412..265b147a0a 100644 --- a/doc/guides/nics/e1000em.rst +++ b/doc/guides/nics/e1000em.rst @@ -176,3 +176,7 @@ The following are known limitations: testpmd [options] -- --mbuf-size= #. Qemu e1000 does not validate the checksum of incoming packets. + +#. Qemu e1000 only supports one interrupt source, so link and Rx interrupt should be exclusive. + +#. Qemu e1000 does not support interrupt auto-clear, application should disable interrupt immediately when woken up. -- 2.20.1