Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261554AbVANB5b (ORCPT ); Thu, 13 Jan 2005 20:57:31 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261496AbVANB5V (ORCPT ); Thu, 13 Jan 2005 20:57:21 -0500 Received: from cml183.neoplus.adsl.tpnet.pl ([83.31.139.183]:13841 "EHLO defiant.pm.waw.pl") by vger.kernel.org with ESMTP id S261724AbVANBym (ORCPT ); Thu, 13 Jan 2005 20:54:42 -0500 To: Adam Anthony Cc: Francois Romieu , linux-kernel@vger.kernel.org Subject: Re: Linux HDLC Stack - N2 module References: <4F23E557A0317D45864097982DE907941A38A8@pilotmail.sbscorp.sbs.com> From: Krzysztof Halasa Date: Fri, 14 Jan 2005 02:53:37 +0100 In-Reply-To: <4F23E557A0317D45864097982DE907941A38A8@pilotmail.sbscorp.sbs.com> (Adam Anthony's message of "Thu, 13 Jan 2005 09:02:20 -0700") Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1443 Lines: 31 Adam Anthony writes: > Krzysztof and Ueimor, > Following the advice prescribed below, I've had a look at existing > HDLC work in the kernel. I tried firing up a Riscom/N2 adapter with the > 2.4.28 N2 module and HDLC support but was faced with a number of problems. > It seems like the transmit buffers aren't getting emptied after transmit, > because I can only transmit a few frames before traffic halts. Transmit > statistics don't increment either, but I am seeing frames on the remote end. Looks like IRQ problem. Can you see IRQ handler being called? I.e. doesn the counter in /proc/interrupts increment? > Has the N2 module been tested with recent kernels? Is it useable? It should be, though I haven't used N2 card for a year maybe. Still, other cards (c101 and pci200syn) share the same low-level driver core, I know people with c101 (not sure about their kernel versions) and I personally use pci200syn with latest 2.6 kernels. There are some issues wrt Frame-Relay code (no PVC list locking, there is some small possibility of kernel panic etc. while removing a PVC on live interface - will fix when time permits, problem never reported). -- Krzysztof Halasa - 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/