From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [net-next-2.6 PATCH 1/3] ixgbe: set max desc to prevent total RSC packet size of 64K Date: Mon, 18 May 2009 15:10:01 -0700 (PDT) Message-ID: <20090518.151001.16071533.davem@davemloft.net> References: <20090518065745.14864.86660.stgit@localhost.localdomain> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, alexander.h.duyck@intel.com To: jeffrey.t.kirsher@intel.com Return-path: Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:35849 "EHLO sunset.davemloft.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752894AbZERWKE (ORCPT ); Mon, 18 May 2009 18:10:04 -0400 In-Reply-To: <20090518065745.14864.86660.stgit@localhost.localdomain> Sender: netdev-owner@vger.kernel.org List-ID: From: Jeff Kirsher Date: Sun, 17 May 2009 23:57:47 -0700 > From: Alexander Duyck > > The performance of hardware RSC is greatly reduced if the total for max rsc > descriptors multiplied by the buffer size is greater than 65535. To > prevent this we need to adjust the max rsc descriptors appropriately. > > Signed-off-by: Alexander Duyck > Signed-off-by: Jeff Kirsher Applied.