From owner-cvs-src-old@FreeBSD.ORG Thu Jun 18 05:46:43 2009 Return-Path: Delivered-To: cvs-src-old@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0498410657BE for ; Thu, 18 Jun 2009 05:46:43 +0000 (UTC) (envelope-from yongari@FreeBSD.org) Received: from repoman.freebsd.org (repoman.freebsd.org [IPv6:2001:4f8:fff6::29]) by mx1.freebsd.org (Postfix) with ESMTP id E5CD68FC14 for ; Thu, 18 Jun 2009 05:46:42 +0000 (UTC) (envelope-from yongari@FreeBSD.org) Received: from repoman.freebsd.org (localhost [127.0.0.1]) by repoman.freebsd.org (8.14.3/8.14.3) with ESMTP id n5I5kgtq057438 for ; Thu, 18 Jun 2009 05:46:42 GMT (envelope-from yongari@repoman.freebsd.org) Received: (from svn2cvs@localhost) by repoman.freebsd.org (8.14.3/8.14.3/Submit) id n5I5kgLF057437 for cvs-src-old@freebsd.org; Thu, 18 Jun 2009 05:46:42 GMT (envelope-from yongari@repoman.freebsd.org) Message-Id: <200906180546.n5I5kgLF057437@repoman.freebsd.org> X-Authentication-Warning: repoman.freebsd.org: svn2cvs set sender to yongari@repoman.freebsd.org using -f From: Pyun YongHyeon Date: Thu, 18 Jun 2009 05:46:33 +0000 (UTC) To: cvs-src-old@freebsd.org X-FreeBSD-CVS-Branch: RELENG_7 Subject: cvs commit: src/sys/dev/msk if_msk.c if_mskreg.h X-BeenThere: cvs-src-old@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: **OBSOLETE** CVS commit messages for the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 18 Jun 2009 05:46:43 -0000 yongari 2009-06-18 05:46:33 UTC FreeBSD src repository Modified files: (Branch: RELENG_7) sys/dev/msk if_msk.c if_mskreg.h Log: SVN rev 194422 on 2009-06-18 05:46:33Z by yongari MFC r193293-193294: r193293: Add preliminary Yukon Extreme support and register definitions. Yukon Extreme uses new descriptor format for TSO and has Tx frame parser which greatly reduces CPU cycles spent in computing TCP/UDP payload offset calculation in Tx checksum offloading path. The new descriptor format also removed TCP/UDP payload computation for TSO which in turn results in better TSO performance. It seems Yukon Extreme has a lot of new (unknown) features but only basic offloading is supported at this time. So far there are two known issues. o Sometimes Rx overrun errors happen when pulling data over gigabit link. Running over 100Mbps seem to ok. o Ethernet hardware address shows all-zeroed value on 88E8070. Assigning ethernet address with ifconfig is necessary to make it work. Support for Yukon Extreme is not perfect but it would be better than having a non-working device. Special thanks to jbh who fixed several bugs of initial patch. Tested by: jhb, Warren Block ( wblock <> wonkity dot com ) r193294: Add frame parser capability of Yukon FE+ and Yukon Extreme. With this feature hardware automatically computes TCP/UDP payload offset. Introduce MSK_FLAG_AUTOTX_CSUM to mark the capability. Yukon Extreme B0 revision is known to have a silicon for the feature so disable it. Yukon Extreme B0 still can do Tx checksum offloading but CPU have to compute TCP/UDP payload offset. To enable traditional checksum offloading, disable automatic Tx checksum calculation capability. Yukon Extreme A0 revision could not use store-and-forward mode for jumbo frames(silicon bug) so disable Tx checksum offloading for jumbo frames. I believe controllers that have MSK_FLAG_AUTOTX_CSUM capability or new descriptor format do not have Tx checksum offload bug so disable checksum offloading workaround for for short frames. Tested by: jhb, Warren Block ( wblock <> wonkity dot com ) Revision Changes Path 1.18.2.24 +132 -37 src/sys/dev/msk/if_msk.c 1.6.2.14 +112 -9 src/sys/dev/msk/if_mskreg.h