From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932736AbcLICyf (ORCPT ); Thu, 8 Dec 2016 21:54:35 -0500 Received: from mail-sn1nam02on0085.outbound.protection.outlook.com ([104.47.36.85]:34254 "EHLO NAM02-SN1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S932192AbcLICyd (ORCPT ); Thu, 8 Dec 2016 21:54:33 -0500 X-Greylist: delayed 41116 seconds by postgrey-1.27 at vger.kernel.org; Thu, 08 Dec 2016 21:54:32 EST Authentication-Results: spf=pass (sender IP is 149.199.60.100) smtp.mailfrom=xilinx.com; qca.qualcomm.com; dkim=none (message not signed) header.d=none;qca.qualcomm.com; dmarc=bestguesspass action=none header.from=xilinx.com; X-IncomingTopHeaderMarker: OriginalChecksum:;UpperCasedChecksum:;SizeAsReceived:2867;Count:27 From: Bharat Kumar Gogada To: Bharat Kumar Gogada , Marc Zyngier , Bjorn Helgaas CC: "linux-kernel@vger.kernel.org" , "linux-pci@vger.kernel.org" , "Janusz.Dziedzic@tieto.com" , "rmanohar@qti.qualcomm.com" , Kalle Valo , "ath9k-devel@qca.qualcomm.com" Subject: RE: ATH9 driver issues on ARM64 Thread-Topic: ATH9 driver issues on ARM64 Thread-Index: AQHSUWNLKRFHQUL67ky5AgPY+zl5DKD+JeSA//+s/ICAAIojQP//h1GAgAD2EhCAAA1nwA== Date: Fri, 9 Dec 2016 02:39:43 +0000 Message-ID: <8520D5D51A55D047800579B094147198263A79ED@XAP-PVEXMBX02.xlnx.xilinx.com> References: <8520D5D51A55D047800579B094147198263A7222@XAP-PVEXMBX02.xlnx.xilinx.com> <20161208145608.GA19822@bhelgaas-glaptop.roam.corp.google.com> <8520D5D51A55D047800579B094147198263A72F5@XAP-PVEXMBX02.xlnx.xilinx.com> <48ec7cdf-5a5f-bd4a-3ba2-a7bb294e161f@arm.com> <8520D5D51A55D047800579B094147198263A77C5@XAP-PVEXMBX02.xlnx.xilinx.com> <6a718bb8-f827-8b7f-ac10-f924cbc5e463@arm.com> <8520D5D51A55D047800579B094147198263A79AC@XAP-PVEXMBX02.xlnx.xilinx.com> In-Reply-To: <8520D5D51A55D047800579B094147198263A79AC@XAP-PVEXMBX02.xlnx.xilinx.com> Accept-Language: en-US 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quoted-printable to 8bit by mail.home.local id uB92sggQ002294 > > >> On 08/12/16 15:29, Bharat Kumar Gogada wrote: > > >> > > >> Two things: > > >> > > >>> Here is the cat /proc/interrupts (after we do interface up): > > >>> > > >>> root@:~# ifconfig wlan0 up > > >>> [ 1548.926601] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready > > >>> root@Xilinx-ZCU102-2016_3:~# cat /proc/interrupts > > >>> CPU0 CPU1 CPU2 CPU3 > > >>> 1: 0 0 0 0 GICv2 29 Edge arch_timer > > >>> 2: 19873 20058 19089 17435 GICv2 30 Edge arch_timer > > > > By the way, please use a recent kernel. Seeing edge here means you're > > running with something that is a bit old (and broken). And since you > > haven't even said what revision of the kernel you're using, hslping > > you is not an easy task. tglx told you something similar about a week ago. > > > > >>> 12: 0 0 0 0 GICv2 156 Level zynqmp-dma > > >>> 13: 0 0 0 0 GICv2 157 Level zynqmp-dma > > >>> 14: 0 0 0 0 GICv2 158 Level zynqmp-dma > > >>> 15: 0 0 0 0 GICv2 159 Level zynqmp-dma > > >>> 16: 0 0 0 0 GICv2 160 Level zynqmp-dma > > >>> 17: 0 0 0 0 GICv2 161 Level zynqmp-dma > > >>> 18: 0 0 0 0 GICv2 162 Level zynqmp-dma > > >>> 19: 0 0 0 0 GICv2 163 Level zynqmp-dma > > >>> 20: 0 0 0 0 GICv2 164 Level Mali_GP_MMU, > > Mali_GP, > > >> Mali_PP0_MMU, Mali_PP0, Mali_PP1_MMU, Mali_PP1 > > >> > > >> I'm not even going to consider looking at something that is running > > >> out of tree code. So please start things with a fresh kernel that > > >> doesn't contain stuff we can't debug. > > >> > > > Ok will test with fresh kernel. > > > > > >>> 30: 0 0 0 0 GICv2 95 Level eth0, eth0 > > >>> 206: 314 0 0 0 GICv2 49 Level cdns-i2c > > >>> 207: 40 0 0 0 GICv2 50 Level cdns-i2c > > >>> 209: 0 0 0 0 GICv2 150 Level nwl_pcie:misc > This irq line is handling miscellaneous interrupts this shows level triggered. > > >>> 214: 12 0 0 0 GICv2 47 Level ff0f0000.spi > > >>> 215: 0 0 0 0 GICv2 58 Level ffa60000.rtc > > >>> 216: 0 0 0 0 GICv2 59 Level ffa60000.rtc > > >>> 217: 0 0 0 0 GICv2 165 Level ahci- > > ceva[fd0c0000.ahci] > > >>> 218: 61 0 0 0 GICv2 81 Level mmc0 > > >>> 219: 0 0 0 0 GICv2 187 Level arm-smmu global > fault > > >>> 220: 471 0 0 0 GICv2 53 Level xuartps > > >>> 223: 0 0 0 0 GICv2 154 Level fd4c0000.dma > > >>> 224: 3 0 0 0 dummy 1 Edge ath9k > > >> > > >> What is this "dummy" controller? And if that's supposed to be a > > >> legacy interrupt from the PCI device, it has the wrong trigger. > > > > > > Yes it is for legacy interrupt, wrong trigger means ? > > > > Aren't legacy interrupts supposed to be *level* triggered, and not edge? > > > Yes agreed. > For legacy interrupts im using irq_set_chained_handler_and_data so the irq line > between bridge and GIC Will not be shown here. The above how is virq for > legacy, which is given by kernel, not sure why its state is set to edge. > > Here I'm adding fresh kernel log: (using 4.6.0 kernel version) root@Xilinx-ZCU102-2016_3:~# cat /proc/interrupts CPU0 CPU1 CPU2 CPU3 1: 0 0 0 0 GICv2 29 Edge arch_timer 2: 1368 1294 1655 2657 GICv2 30 Edge arch_timer 30: 0 0 0 0 GICv2 95 Level eth0, eth0 206: 311 0 0 0 GICv2 49 Level cdns-i2c 207: 40 0 0 0 GICv2 50 Level cdns-i2c 209: 0 0 0 0 GICv2 150 Level nwl_pcie:misc 214: 7 0 0 0 GICv2 47 Level ff0f0000.spi 215: 0 0 0 0 GICv2 58 Level ffa60000.rtc 216: 0 0 0 0 GICv2 59 Level ffa60000.rtc 217: 0 0 0 0 GICv2 165 Level ahci-ceva[fd0c0000.ahci] 218: 0 0 0 0 GICv2 81 Level mmc0 219: 0 0 0 0 GICv2 187 Level arm-smmu global fault 220: 126 0 0 0 GICv2 53 Level xuartps 224: 3 0 0 0 dummy 1 Edge ath9k IPI0: 1293 1003 914 671 Rescheduling interrupts IPI1: 77 78 25 55 Function call interrupts IPI2: 0 0 0 0 CPU stop interrupts IPI3: 0 0 0 0 Timer broadcast interrupts IPI4: 0 0 0 0 IRQ work interrupts IPI5: 0 0 0 0 CPU wake-up interrupts root@Xilinx-ZCU102-2016_3:~#iw dev wlan0 scan [ 95.869644] INFO: rcu_sched detected stalls on CPUs/tasks: [ 95.875051] 0-...: (1 GPs behind) idle=659/140000000000001/0 softirq=1166/1166 fqs=257 [ 95.883125] (detected by 3, t=5253 jiffies, g=217, c=216, q=54) [ 95.889108] Task dump for CPU 0: [ 95.892318] kworker/u8:0 R running task 0 6 2 0x00000002 [ 95.899359] Workqueue: phy0 ieee80211_scan_work [ 95.903862] Call trace: [ 95.906299] [] __switch_to+0x9c/0xd0 [ 95.911417] [] 0xffffffc87b87fc00 [ 158.969641] INFO: rcu_sched detected stalls on CPUs/tasks: [ 158.975046] 0-...: (1 GPs behind) idle=659/140000000000001/0 softirq=1166/1166 fqs=1028 [ 158.983209] (detected by 3, t=21028 jiffies, g=217, c=216, q=54) [ 158.989278] Task dump for CPU 0: [ 158.992489] kworker/u8:0 R running task 0 6 2 0x00000002 [ 158.999523] Workqueue: phy0 ieee80211_scan_work [ 159.004032] Call trace: [ 159.006467] [] __switch_to+0x9c/0xd0 [ 159.011588] [] 0xffffffc87b87fc00 Thans & Regards, Bharat