Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758743Ab1FAJuL (ORCPT ); Wed, 1 Jun 2011 05:50:11 -0400 Received: from mx1.redhat.com ([209.132.183.28]:21804 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753235Ab1FAJuH (ORCPT ); Wed, 1 Jun 2011 05:50:07 -0400 Date: Wed, 1 Jun 2011 12:49:37 +0300 From: "Michael S. Tsirkin" To: linux-kernel@vger.kernel.org Cc: Rusty Russell , Carsten Otte , Christian Borntraeger , linux390@de.ibm.com, Martin Schwidefsky , Heiko Carstens , Shirley Ma , lguest@lists.ozlabs.org, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, linux-s390@vger.kernel.org, kvm@vger.kernel.org, Krishna Kumar , Tom Lendacky , steved@us.ibm.com, habanero@linux.vnet.ibm.com Subject: [PATCH RFC 0/3] virtio and vhost-net capacity handling Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Mutt-Fcc: =sent User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1260 Lines: 33 OK, here's a new attempt to use the new capacity api. I also added more comments to clarify the logic. Hope this is more readable. Let me know pls. This is on top of the patches applied by Rusty. Note: there are now actually 2 calls to fee_old_xmit_skbs on data path so instead of passing flag '2' to the second one I thought we can just make each call free up at least 1 skb. This will work and even might be a bit faster (less branches), but in the end I discarded this idea as too fragile (relies on two calls on data path to function properly). Warning: untested. Posting now to give people chance to comment on the API. Michael S. Tsirkin (3): virtio_ring: add capacity check API virtio_net: fix tx capacity checks using new API virtio_net: limit xmit polling drivers/net/virtio_net.c | 65 +++++++++++++++++++++++------------------ drivers/virtio/virtio_ring.c | 8 +++++ include/linux/virtio.h | 5 +++ 3 files changed, 49 insertions(+), 29 deletions(-) -- 1.7.5.53.gc233e -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/