From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <yliu84x@shecgisg004.sh.intel.com>
Received: from mga02.intel.com (mga02.intel.com [134.134.136.20])
 by dpdk.org (Postfix) with ESMTP id 23D0D8DAC
 for <dev@dpdk.org>; Fri, 30 Oct 2015 10:26:33 +0100 (CET)
Received: from orsmga001.jf.intel.com ([10.7.209.18])
 by orsmga101.jf.intel.com with ESMTP; 30 Oct 2015 02:26:32 -0700
X-ExtLoop1: 1
X-IronPort-AV: E=Sophos;i="5.20,217,1444719600"; d="scan'208";a="807333068"
Received: from shvmail01.sh.intel.com ([10.239.29.42])
 by orsmga001.jf.intel.com with ESMTP; 30 Oct 2015 02:23:14 -0700
Received: from shecgisg004.sh.intel.com (shecgisg004.sh.intel.com
 [10.239.29.89])
 by shvmail01.sh.intel.com with ESMTP id t9U9NClh010628;
 Fri, 30 Oct 2015 17:23:12 +0800
Received: from shecgisg004.sh.intel.com (localhost [127.0.0.1])
 by shecgisg004.sh.intel.com (8.13.6/8.13.6/SuSE Linux 0.8) with ESMTP id
 t9U9NAjL003670; Fri, 30 Oct 2015 17:23:12 +0800
Received: (from yliu84x@localhost)
 by shecgisg004.sh.intel.com (8.13.6/8.13.6/Submit) id t9U9N9xe003666;
 Fri, 30 Oct 2015 17:23:09 +0800
From: Yong Liu <yong.liu@intel.com>
To: dev@dpdk.org
Date: Fri, 30 Oct 2015 17:23:08 +0800
Message-Id: <1446196988-3634-1-git-send-email-yong.liu@intel.com>
X-Mailer: git-send-email 1.7.4.1
Subject: [dpdk-dev] [PATCH] doc: update user guide about e1000em limitations
X-BeenThere: dev@dpdk.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: patches and discussions about DPDK <dev.dpdk.org>
List-Unsubscribe: <http://dpdk.org/ml/options/dev>,
 <mailto:dev-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://dpdk.org/ml/archives/dev/>
List-Post: <mailto:dev@dpdk.org>
List-Help: <mailto:dev-request@dpdk.org?subject=help>
List-Subscribe: <http://dpdk.org/ml/listinfo/dev>,
 <mailto:dev-request@dpdk.org?subject=subscribe>
X-List-Received-Date: Fri, 30 Oct 2015 09:26:34 -0000

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>

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.
-- 
1.9.3