From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wi0-f181.google.com ([209.85.212.181]:35564 "EHLO mail-wi0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752490AbbGORsk (ORCPT ); Wed, 15 Jul 2015 13:48:40 -0400 Received: by wiga1 with SMTP id a1so6886496wig.0 for ; Wed, 15 Jul 2015 10:48:39 -0700 (PDT) Date: Wed, 15 Jul 2015 19:48:34 +0200 From: Alexander Aring Subject: Re: ping6 -> lowpan0 -> wpan0. Ping6 doesn't succeed to send messages Message-ID: <20150715174830.GA2288@omega> References: <20150713174807.GA3056@omega> <20150714181114.GA3113@omega> <20150715071214.GA5680@omega> <20150715071339.GB5680@omega> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: Sender: linux-wpan-owner@vger.kernel.org List-ID: To: Baptiste Clenet Cc: linux-wpan@vger.kernel.org On Wed, Jul 15, 2015 at 04:34:09PM +0200, Baptiste Clenet wrote: > 2015-07-15 9:13 GMT+02:00 Alexander Aring : > > Hi, > > > > adding missed cc. > > > > On Wed, Jul 15, 2015 at 09:12:14AM +0200, Alexander Aring wrote: > >> On Tue, Jul 14, 2015 at 11:22:32PM +0200, Baptiste Clenet wrote: > >> ... > >> > > >> > Kind of a backtrace (printk at each beginning of a function) > >> > root@OpenWrt:/# ip link set lowpan0 up > >> > [ 214.708111] lowpan_header_create > >> > [ 214.714520] lowpan_xmit > >> > [ 214.719378] lowpan_header > >> > [ 214.724569] tx.c dev_queue_xmit > >> > [ 214.730795] at86rf230_xmit_start > >> > [ 214.737669] at86rf230_write_frame > >> > [ 214.745539] at86rf230_write_frame_complete > >> > [ 214.828082] lowpan_header_create > >> > [ 214.834484] lowpan_xmit > >> > [ 214.839334] lowpan_header > >> > [ 214.844523] tx.c dev_queue_xmit > >> > [ 215.368119] lowpan_header_create > >> > [ 215.374529] lowpan_xmit > >> > [ 215.379398] lowpan_header > >> > [ 215.384589] tx.c dev_queue_xmit > >> > [ 216.368196] lowpan_header_create > >> > [ 216.374604] lowpan_xmit > >> > [ 216.379468] lowpan_header > >> > [ 216.384658] tx.c dev_queue_xmit > >> > [ 216.390934] lowpan_header_create > >> > [ 216.397319] lowpan_xmit > >> > [ 216.402168] lowpan_header > >> > [ 216.407351] tx.c dev_queue_xmit > >> > [ 216.898090] lowpan_header_create > >> > > >> > [ 216.904496] lowpan_xmit > >> > > >> > [ 216.909350] lowpan_header > >> > [ 216.914539] tx.c dev_queue_xmit > >> > [ 216.978063] lowpan_header_create > >> > [ 216.984464] lowpan_xmit > >> > [ 216.989312] lowpan_header > >> > [ 216.994498] tx.c dev_queue_xmit > >> > > >> > You see that at86rf230_xmit_start is called only once so I seems > >> > logical that while doing a ping6, it's not called as well. > >> > >> I maybe know what happens here. > >> > >> You transmit only one frame at beginning, this occurs that the netdev > >> queue will be stopped -> The driver layer doesn't get new "send a frame", > >> the xmit callback. > >> > >> This happens once, then the queue is stopped on the "tx completion > >> interrupt" we awake the queue again. -> The driver layer can send a > >> frame again. > >> > >> It seems for me that you don't get any irq, instrument please the function: > >> > >> at86rf230_isr > No call for isr but most of all, no irq on the irq line. polarity set > to 0 (reg 0x04), TRX enable (reg 0x0E) > This is definitely the problem > "no irq on the irq line" -> this means you check the irq line on the at86rf212 and it's not high? If not can you please check that with some multimeter. > >> > >> and check > >> > >> cat /proc/interrupts > Yes the spi int is defined > 23: 0 INTC 15 spi32765.0 > Why 23 on the left and 15 ont the right? > 23 is definitely the irqnum, the 15 is some system internal number of your arm soc. Maybe 15 is GPIO15, does this makes any sense? :-) I have there (beaglebone): 141: 77445 481ae000.gpio 19 Level spi1.0 (RPi): 111: 129 pinctrl-bcm2835 23 Level spi32766.0 When the above test results into "the irq line is high and the system doesn't do anything at the at86rf230_isr function" then something is wrong with your interrupt setup in your device tree file and I can't help you there. - Alex