From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:45422) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TOvV2-0005A4-S2 for qemu-devel@nongnu.org; Thu, 18 Oct 2012 15:11:22 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TOvV1-0002dl-OR for qemu-devel@nongnu.org; Thu, 18 Oct 2012 15:11:20 -0400 Received: from mail-wg0-f41.google.com ([74.125.82.41]:63773) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TOvV1-0002dY-FW for qemu-devel@nongnu.org; Thu, 18 Oct 2012 15:11:19 -0400 Received: by mail-wg0-f41.google.com with SMTP id ds1so1126643wgb.4 for ; Thu, 18 Oct 2012 12:11:18 -0700 (PDT) From: Dmitry Fleytman Date: Thu, 18 Oct 2012 20:59:10 +0200 Message-Id: <1350586751-19050-1-git-send-email-dmitry@daynix.com> Subject: [Qemu-devel] [PATCH V2] E1000 RX ring management fix List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Yan Vugenfirer , Alexander Duyck , Dmitry Fleytman , Chris Webb , Richard Davies Following patch fixes improper RX ring management E1000 code Changes from version 1: 1st patch changed so it drops check_rxov field because it is redundant and leads to race conditions See commit description for details 2nd patch (live migration) dropped because corresponding field got deleted Also I've made short experiment with an Intel adapter controlled by e1000e driver. Indeed I saw no RX indication attempt when RX ring's RDH and RDT are equal. Dmitry Fleytman (1): Drop check_rxov, always treat RX ring with RHD == RDT as empty hw/e1000.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) -- 1.7.11.4