From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Monjalon Subject: Re: [PATCH] ixgbe: remove l3_l4_xsum_errors from rx errors Date: Wed, 04 Nov 2015 17:08:26 +0100 Message-ID: <3719124.DH6p50L0ak@xps13> References: <5639CB88.7040108@allegro-packets.com> <1446652230-10009-1-git-send-email-harry.van.haaren@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Cc: dev@dpdk.org To: Harry van Haaren Return-path: Received: from mail-wi0-f178.google.com (mail-wi0-f178.google.com [209.85.212.178]) by dpdk.org (Postfix) with ESMTP id 20A6F8D96 for ; Wed, 4 Nov 2015 17:09:39 +0100 (CET) Received: by wikq8 with SMTP id q8so95335021wik.1 for ; Wed, 04 Nov 2015 08:09:38 -0800 (PST) In-Reply-To: <1446652230-10009-1-git-send-email-harry.van.haaren@intel.com> List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" 2015-11-04 15:50, Harry van Haaren: > This patch removes l3_l4_xsum_errors from rx errors. > > The reason to remove it is that UDP packets have an optional checksum, and > when not calculated the checksum field should be set to zero. When the > checksum is not calculated (zero-ed out), the hardware still counts a valid > UDP packet as an l3_l4_xsum_error. > > This hardware issue is documented in 82599 errata, titled: > "Integrity Error Reported for IPv4/UDP Packets with Zero Checksum" Please Harry, could you add a Fixes tag to track the origin of the bug?