From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bruce Richardson Subject: Re: No packets received if burst is too small in rte_eth_rx_burst Date: Wed, 14 Dec 2016 16:52:21 +0000 Message-ID: <20161214165220.GC110884@bricha3-MOBL3.ger.corp.intel.com> References: <415214732.17903310.1481728244157.JavaMail.zimbra@ulg.ac.be> <597694261.17905196.1481728433903.JavaMail.zimbra@ulg.ac.be> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: dev@dpdk.org To: tom.barbette@ulg.ac.be Return-path: Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by dpdk.org (Postfix) with ESMTP id CA1DA282 for ; Wed, 14 Dec 2016 17:52:24 +0100 (CET) Content-Disposition: inline In-Reply-To: <597694261.17905196.1481728433903.JavaMail.zimbra@ulg.ac.be> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" On Wed, Dec 14, 2016 at 04:13:53PM +0100, tom.barbette@ulg.ac.be wrote: > Hi list, > > Between 2.2.0 and 16.04 (up to at least 16.07.2 if not current), with the XL710 controller I do not get any packet when calling rte_eth_rx_burst if nb_pkts is too small. I would say smaller than 32. The input rate is not big, if that helps. But It should definitely get at least one packet per second. > > Any ideas? Is that a bug or expected behaviour? Could be caused by other ABI changes? > Does this issue still occur even if you disable the vector driver in your build-time configuration? /Bruce