Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756078Ab1DTUYa (ORCPT ); Wed, 20 Apr 2011 16:24:30 -0400 Received: from stargate.chelsio.com ([67.207.112.58]:6968 "EHLO stargate.chelsio.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756044Ab1DTUY3 (ORCPT ); Wed, 20 Apr 2011 16:24:29 -0400 Message-ID: <4DAF40EB.20303@chelsio.com> Date: Wed, 20 Apr 2011 13:24:11 -0700 From: Dimitris Michailidis Organization: Chelsio Communications User-Agent: Thunderbird 1.5.0.12 (X11/20070530) MIME-Version: 1.0 To: Shirley Ma CC: Ben Hutchings , David Miller , mst@redhat.com, Eric Dumazet , Avi Kivity , Arnd Bergmann , netdev@vger.kernel.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH V3 2/8] Add a new zerocopy device flag References: <1303328216.19336.18.camel@localhost.localdomain> <1303328648.19336.24.camel@localhost.localdomain> <1303328906.2823.24.camel@bwh-desktop> <1303330173.19336.52.camel@localhost.localdomain> In-Reply-To: <1303330173.19336.52.camel@localhost.localdomain> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1296 Lines: 38 On 04/20/2011 01:09 PM, Shirley Ma wrote: > Resubmit this patch with the new bit. Bit 30 is also taken in net-next. > > Signed-off-by: Shirley Ma > --- > > include/linux/netdevice.h | 3 +++ > 1 files changed, 3 insertions(+), 0 deletions(-) > > diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h > index 0249fe7..0998d3d 100644 > --- a/include/linux/netdevice.h > +++ b/include/linux/netdevice.h > @@ -1067,6 +1067,9 @@ struct net_device { > #define NETIF_F_RXHASH (1 << 28) /* Receive hashing offload */ > #define NETIF_F_RXCSUM (1 << 29) /* Receive checksumming offload */ > > +/* Bit 30 is for device to map userspace buffers -- zerocopy */ > +#define NETIF_F_ZEROCOPY (1 << 30) > + > /* Segmentation offload features */ > #define NETIF_F_GSO_SHIFT 16 > #define NETIF_F_GSO_MASK 0x00ff0000 > > > -- > To unsubscribe from this list: send the line "unsubscribe netdev" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- 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/