From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?B?UmFmYcWCIE1pxYJlY2tp?= Subject: Re: [PATCH v6 6/9] bgmac: increase rx ring size from 511 to 512 Date: Tue, 14 Apr 2015 07:57:05 +0200 Message-ID: References: <1428968537-6181-1-git-send-email-nbd@openwrt.org> <1428968537-6181-6-git-send-email-nbd@openwrt.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Network Development , Hauke Mehrtens To: Felix Fietkau Return-path: Received: from mail-lb0-f175.google.com ([209.85.217.175]:33526 "EHLO mail-lb0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751207AbbDNF5G convert rfc822-to-8bit (ORCPT ); Tue, 14 Apr 2015 01:57:06 -0400 Received: by lbbzk7 with SMTP id zk7so76151159lbb.0 for ; Mon, 13 Apr 2015 22:57:05 -0700 (PDT) In-Reply-To: <1428968537-6181-6-git-send-email-nbd@openwrt.org> Sender: netdev-owner@vger.kernel.org List-ID: On 14 April 2015 at 01:42, Felix Fietkau wrote: > Limiting it to 511 looks like a failed attempt at leaving one descrip= tor > empty to allow the hardware to stop processing a buffer that has not > been prepared yet. However, this doesn't work because this affects th= e > total ring size as well > > Signed-off-by: Felix Fietkau Acked-by: Rafa=C5=82 Mi=C5=82ecki