From owner-cvs-src-old@FreeBSD.ORG Wed Jan 6 22:49:33 2010 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 BE78F10656A6 for ; Wed, 6 Jan 2010 22:49:33 +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 AD1808FC16 for ; Wed, 6 Jan 2010 22:49:33 +0000 (UTC) Received: from repoman.freebsd.org (localhost [127.0.0.1]) by repoman.freebsd.org (8.14.3/8.14.3) with ESMTP id o06MnXIO047088 for ; Wed, 6 Jan 2010 22:49:33 GMT (envelope-from yongari@repoman.freebsd.org) Received: (from svn2cvs@localhost) by repoman.freebsd.org (8.14.3/8.14.3/Submit) id o06MnXQ9047087 for cvs-src-old@freebsd.org; Wed, 6 Jan 2010 22:49:33 GMT (envelope-from yongari@repoman.freebsd.org) Message-Id: <201001062249.o06MnXQ9047087@repoman.freebsd.org> X-Authentication-Warning: repoman.freebsd.org: svn2cvs set sender to yongari@repoman.freebsd.org using -f From: Pyun YongHyeon Date: Wed, 6 Jan 2010 22:49:10 +0000 (UTC) To: cvs-src-old@freebsd.org X-FreeBSD-CVS-Branch: RELENG_7 Subject: cvs commit: src/sys/dev/bge if_bge.c if_bgereg.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: Wed, 06 Jan 2010 22:49:33 -0000 yongari 2010-01-06 22:49:10 UTC FreeBSD src repository Modified files: (Branch: RELENG_7) sys/dev/bge if_bge.c if_bgereg.h Log: SVN rev 201686 on 2010-01-06 22:49:10Z by yongari MFC r198923-198924,198927-198928 r198923: Use correct dma tag for jumbo buffer. r198924: Covert bge_newbuf_std to use bus_dmamap_load_mbuf_sg(9). Note, bge_newbuf_std still has a bug for handling dma map load failure under high network load. Just reusing mbuf is not enough as driver already unloaded the dma map of the mbuf. Graceful recovery needs more work. Ideally we can just update dma address part of a Rx descriptor because the controller never overwrite the Rx descriptor. This requires some Rx initialization code changes and it would be done later after fixing other incorrect bus_dma(9) usages. r198927: Remove common DMA tag used for TX/RX mbufs and create Tx DMA tag and Rx DMA tag separately. Previously it used a common mbuf DMA tag for both Tx and Rx path but Rx buffer(standard ring case) should have a single DMA segment and maximum buffer size of the segment should be less than or equal to MCLBYTES. This change also make it possible to add TSO with minor changes. r198928: Make bge_newbuf_std()/bge_newbuf_jumbo() returns actual error code for buffer allocation. If driver know we are out of Rx buffers let controller stop. This should fix panic when interface is run even if it had no configured Rx buffers. Revision Changes Path 1.198.2.22 +70 -52 src/sys/dev/bge/if_bge.c 1.73.2.9 +3 -2 src/sys/dev/bge/if_bgereg.h