From owner-cvs-all@FreeBSD.ORG  Thu Dec  8 16:12:37 2005
Return-Path: <owner-cvs-all@FreeBSD.ORG>
X-Original-To: cvs-all@FreeBSD.org
Delivered-To: cvs-all@FreeBSD.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 9AF5716A422;
	Thu,  8 Dec 2005 16:12:37 +0000 (GMT)
	(envelope-from glebius@FreeBSD.org)
Received: from repoman.freebsd.org (repoman.freebsd.org [216.136.204.115])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 45A8C43D83;
	Thu,  8 Dec 2005 16:11:46 +0000 (GMT)
	(envelope-from glebius@FreeBSD.org)
Received: from repoman.freebsd.org (localhost [127.0.0.1])
	by repoman.freebsd.org (8.13.1/8.13.1) with ESMTP id jB8GBjtb092514;
	Thu, 8 Dec 2005 16:11:45 GMT
	(envelope-from glebius@repoman.freebsd.org)
Received: (from glebius@localhost)
	by repoman.freebsd.org (8.13.1/8.13.1/Submit) id jB8GBjkG092513;
	Thu, 8 Dec 2005 16:11:45 GMT (envelope-from glebius)
Message-Id: <200512081611.jB8GBjkG092513@repoman.freebsd.org>
From: Gleb Smirnoff <glebius@FreeBSD.org>
Date: Thu, 8 Dec 2005 16:11:45 +0000 (UTC)
To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org
X-FreeBSD-CVS-Branch: HEAD
Cc: 
Subject: cvs commit: src/sys/dev/bge if_bge.c if_bgereg.h
X-BeenThere: cvs-all@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: CVS commit messages for the entire tree <cvs-all.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-all>,
	<mailto:cvs-all-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/cvs-all>
List-Post: <mailto:cvs-all@freebsd.org>
List-Help: <mailto:cvs-all-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-all>,
	<mailto:cvs-all-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 08 Dec 2005 16:12:38 -0000

glebius     2005-12-08 16:11:45 UTC

  FreeBSD src repository

  Modified files:
    sys/dev/bge          if_bge.c if_bgereg.h 
  Log:
  A big rewrite of receive Jumbo frame handling. Remove the local Jumbo
  cluster allocator, that wasn't MPSAFE. Instead, utilize our new generic
  UMA jumbo cluster allocator. Since UMA gives us a 9k piece that is contigous
  in virtual memory, but isn't contigous in physical memory we need to handle
  a few segments. To deal with this we utilize Tigon chip feature - extended
  RX descriptors, that can handle up to four DMA segments for one frame.
  
  Details:
  
  o Remove bge_alloc_jumbo_mem(), bge_free_jumbo_mem(),
    bge_jalloc(), bge_jfree() functions.
  o Remove SLIST heads, bge_jumbo_tag, bge_jumbo_map from softc.
  o Use extended RX BDs for Jumbo receive producer ring, and
    initialize it appropriately.
  o New bge_newbuf_jumbo():
    - Allocate an mbuf with Jumbo cluster with help of m_cljget().
    - Load the cluster for DMA with help of bus_dmamap_load_mbuf_sg().
    - Assert that we got 3 segments in the DMA mapping.
    - Fill in these 3 segments into the extended RX descriptor.
  
  Revision  Changes    Path
  1.103     +49 -233   src/sys/dev/bge/if_bge.c
  1.39      +26 -15    src/sys/dev/bge/if_bgereg.h