From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933208Ab0J2KXM (ORCPT ); Fri, 29 Oct 2010 06:23:12 -0400 Received: from rere.qmqm.pl ([89.167.52.164]:44357 "EHLO rere.qmqm.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752261Ab0J2KXJ (ORCPT ); Fri, 29 Oct 2010 06:23:09 -0400 Message-Id: From: =?UTF-8?q?Micha=C5=82=20Miros=C5=82aw?= To: Hans Ulli Kroll , Russell King , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org Cc: Paulius Zaleckas , Janos Laube Subject: [RFC PATCH 0/2] SL351x (Gemini) ethernet driver MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Date: Fri, 29 Oct 2010 12:23:06 +0200 (CEST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is a driver for SL351x (Gemini) SoC ethernet peripheral. Based on work by Paulius Zaleckas and GPLd code from Raidsonic and other NAS vendors. This is work in progress. Please comment and test if you can. Patches are against 2.6.37-rc (current Linus' tree) but should apply to 2.6.36. You probably also need patches for PATA from git://git.berlios.de/gemini-board ib4220 Known bugs: - repeatable bad HW calculated TCP csum happens for only some packets in a TCP stream looks like it doesn't like some data pattern or timing (difference between correct and generated csum is the same when the packet is retransmitted with changed header/TCP tstamp) - TX DMA hangs sometimes (needs module reload when that happens) with debugging printks disabled and HW TX csum enabled - unsynced counters I started to work on Paulius' code to find out why the TX DMA hangs happen, but then I realized that complete rewrite was a better way to understand how the hardware works and why it doesn't. As a "bonus" this got some additional features: - ethtool support - 64-bit counters - proper cleanup on ifdown/module unload - better DMA API usage - cleaned up code - a lot of tx/rx debugging printks - based on 2.6.36 DMA and netdev interfaces TODO: - NAPI - MTU changing For normal use tx-csum and tso have to be disabled: ethtool -K eth0 tso off tx off Tested on Raidsonic IcyBox 4220-B (dual SATA NAS). I'm also interested in getting copies of various GPL packages for StorLink SL3516. I already have following packages (md5sum): 89991e543eb2e473e3d380ac9a4cd8b4 GPL_source_code(Raidsonic).zip 6ba8b833c429794315f0a73ce2961bd8 Gemini_v2_6_0-n.tgz fe87e97a33554bcab8284d25ff86e383 n299_n199_1.00.24_GPL.tar.bz2 eca8994354368304ca3b5bd1429c20bb sl-boot_1.0.9.tgz eafd6497074fe0651459bf38c39d66bd vt4kern-1.5.tar.bz2.tar Best Regards, Michał Mirosław --- Michał Mirosław (2): Gemini: create platform device for ethernet in Raidsonic IB-4220B Gemini: SL351x Ethernet driver arch/arm/mach-gemini/board-nas4220b.c | 53 + arch/arm/mach-gemini/common.h | 2 + arch/arm/mach-gemini/devices.c | 52 + arch/arm/mach-gemini/include/mach/gmac.h | 21 + drivers/net/Kconfig | 7 + drivers/net/Makefile | 1 + drivers/net/sl351x.c | 1706 ++++++++++++++++++++++++++++++ drivers/net/sl351x_hw.h | 1423 +++++++++++++++++++++++++ 8 files changed, 3265 insertions(+), 0 deletions(-) create mode 100644 arch/arm/mach-gemini/include/mach/gmac.h create mode 100644 drivers/net/sl351x.c create mode 100644 drivers/net/sl351x_hw.h