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From: Yong Liu <yong.liu@intel.com>
To: dev@dpdk.org
Date: Fri, 30 Oct 2015 17:23:08 +0800
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Subject: [dpdk-dev] [PATCH] doc: update user guide about e1000em limitations
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Update interrupt related limitations for e1000em nic.
It only support one interrupt source and not support auto-clear.

Signed-off-by: Marvin Liu <yong.liu@intel.com>
Acked-by: John McNamara <john.mcnamara@intel.com>

diff --git a/doc/guides/nics/e1000em.rst b/doc/guides/nics/e1000em.rst
index fedafad..a84e8e1 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=<your-max-packet-size>
 
 #.  Qemu e1000 does not validate the checksum of incoming packets.
+
+#.  Qemu e1000 only support 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 waked up.