From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752127AbcAZTEx (ORCPT ); Tue, 26 Jan 2016 14:04:53 -0500 Received: from hq.vniiem.ru ([78.107.120.166]:60843 "EHLO mx.svc.vniiem.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751632AbcAZTEv (ORCPT ); Tue, 26 Jan 2016 14:04:51 -0500 From: =?UTF-8?B?0J7Qu9C10LMg0JzQvtGA0L7Qtw==?= To: Bjorn Helgaas Cc: Bjorn Helgaas , "linux-pci@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Jiang Liu Subject: Re: PCI device driver broken between 4.2 and 4.3 References: <56A32702.7080909@mcc.vniiem.ru> <56A4D690.1020804@mcc.vniiem.ru> <20160125215251.GB10272@localhost> <20160126153210.GA11375@localhost> Message-ID: <56A7C35F.3090708@mcc.vniiem.ru> Date: Tue, 26 Jan 2016 22:05:03 +0300 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.5.1 MIME-Version: 1.0 In-Reply-To: <20160126153210.GA11375@localhost> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I confirmed it works in 890e4847587f and do not works in 991de2e59090 26.01.2016 18:32, Bjorn Helgaas пишет: > [+cc Jiang] > > On Mon, Jan 25, 2016 at 03:52:51PM -0600, Bjorn Helgaas wrote: >> Hi Олег, >> >> On Sun, Jan 24, 2016 at 04:50:08PM +0300, Олег Мороз wrote: >>> Okay. I've sent logs (dmesg and lspci) from both 4.2 and 4.3 to bugzilla >> I don't see anything wrong in either log. Both v4.2 and v4.3 >> enumerate the device the same way, and the driver seems to claim it >> the same way: >> >> pci 0000:0d:00.0: [10b5:9030] type 00 class 0x078000 >> pci 0000:0d:00.0: reg 0x14: [io 0x2100-0x217f] >> pci 0000:0d:00.0: reg 0x18: [io 0x2380-0x239f] >> pci 0000:0d:00.0: PME# supported from D0 D3hot >> pci 0000:0d:01.0: [10b5:9030] type 00 class 0x078000 >> pci 0000:0d:01.0: reg 0x14: [io 0x2180-0x21ff] >> pci 0000:0d:01.0: reg 0x18: [io 0x23a0-0x23bf] >> pci 0000:0d:01.0: PME# supported from D0 D3hot >> pci 0000:0d:02.0: [10b5:9030] type 00 class 0x078000 >> pci 0000:0d:02.0: reg 0x14: [io 0x2200-0x227f] >> pci 0000:0d:02.0: reg 0x18: [io 0x2280-0x22ff] >> pci 0000:0d:02.0: reg 0x1c: [io 0x2300-0x237f] >> pci 0000:0d:02.0: PME# supported from D0 D3hot >> >> sja1000_plx_pci 0000:0d:02.0: Detected "Eclus CAN-200-PCI" card at slot #2 >> sja1000_plx_pci 0000:0d:02.0: Channel #1 at 0x0000000000012280, irq 22 registered as can0 >> sja1000_plx_pci 0000:0d:02.0: Channel #2 at 0x0000000000012300, irq 22 registered as can1 >> sja1000_plx_pci 0000:0d:02.0 can0: setting BTR0=0x03 BTR1=0x37 >> >> One option is always to bisect between v4.2 and v4.3 to see which >> commit made it stop working. See https://git-scm.com/docs/git-bisect > Jiang, Олег bisected this to 991de2e59090 ("PCI, x86: Implement > pcibios_alloc_irq() and pcibios_free_irq()"). > > Олег, please double-check and confirm that 890e4847587f works and > 991de2e59090 fails. > > Then please add some printks in the pcibios_enable_device() and > pcibios_alloc_irq() paths and in your driver to see exactly what changed > between 890e4847587f and 991de2e59090 > > Bjorn > >>> 23.01.2016 17:54, Bjorn Helgaas пишет: >>>> [+cc linux-kernel] >>>> >>>> Hi Олег, >>>> >>>> On Sat, Jan 23, 2016 at 1:08 AM, Олег Мороз wrote: >>>>> Hello. I've got a device driver for MIL-1553b card called TA1-PCI, which >>>>> could be found at >>>>> https://github.com/qmor/elcus-1553-driver-linux >>>>> Card is using PLX_PCI9030 PCI controller. >>>>> Today i've found that this driver compiles, installes, but is not working as >>>>> it should. >>>>> Looks like it not receives any interrupts from PCI. I've test it again with >>>>> kernel >>>>> 4.2 and it works okay. What changes was made in PCI subsystem from 4.2 to >>>>> 4.3 >>>>> which could have impact this driver work. >>>> Thank you very much for this problem report. There were many PCI >>>> changes between v4.2 and v4.3, and without more information, I can't >>>> guess what might be causing this problem. >>>> >>>> I opened a bug report at https://bugzilla.kernel.org/show_bug.cgi?id=111211 >>>> >>>> Please attach complete dmesg logs for both v4.2 and v4.3 to that bug >>>> report. Also, please attach the complete "lspci -vv" output (as >>>> root). >>>> >>>> Thanks! >>>> >>>> Bjorn >>> -- >>> To unsubscribe from this list: send the line "unsubscribe linux-pci" in >>> the body of a message to majordomo@vger.kernel.org >>> More majordomo info at http://vger.kernel.org/majordomo-info.html >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-pci" in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html