Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 6 Nov 2002 16:52:55 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 6 Nov 2002 16:52:55 -0500 Received: from svr-ganmtc-appserv-mgmt.ncf.coxexpress.com ([24.136.46.5]:3346 "EHLO svr-ganmtc-appserv-mgmt.ncf.coxexpress.com") by vger.kernel.org with ESMTP id ; Wed, 6 Nov 2002 16:52:54 -0500 Subject: Re: Regarding zerocopy implementation ... From: Robert Love To: Manish Lachwani Cc: "'linux-kernel@vger.kernel.org'" In-Reply-To: <233C89823A37714D95B1A891DE3BCE5202AB183D@xch-a.win.zambeel.com> References: <233C89823A37714D95B1A891DE3BCE5202AB183D@xch-a.win.zambeel.com> Content-Type: text/plain Content-Transfer-Encoding: 7bit X-Mailer: Ximian Evolution 1.0.8 (1.0.8-10) Date: 06 Nov 2002 16:46:24 -0500 Message-Id: <1036619185.3405.1407.camel@phantasy> Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 980 Lines: 23 On Wed, 2002-11-06 at 10:23, Manish Lachwani wrote: > Is there a zerocopy receive implementation in Linux? I know that FreeBSD > 5.0-CURRENT has such an implementation named zerocopy sockets and when used > with a Alteon Tigon II NIC with header splitting turned on in Firmware, > works well. Do we have any such implementation in Linux? Any reponse is > greatly appreciated ... Yes, we have zero-copy networking if the device supports the requisite features and the driver is so coded. Quick glance over 2.4, it looks like the following drivers support zero-copy networking: via-rhine, tg3, sunhme, sungem, starfire, ns83820, dl2k, acenic, 8139too, 8139cp, 3c59x family (includes 3c9xx), Intel e100, and Intel e1000. Robert Love - 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/