From: Bjorn Helgaas <helgaas@kernel.org>
To: Frank de Jong <frapex@xs4all.nl>
Cc: linux-pci@vger.kernel.org, linux-ide@vger.kernel.org
Subject: Re: missing PCI ID refs
Date: Mon, 5 Oct 2015 12:52:00 -0500 [thread overview]
Message-ID: <20151005175159.GA18545@localhost> (raw)
In-Reply-To: <56117FFE.6020304@xs4all.nl>
[+cc linux-ide]
On Sun, Oct 04, 2015 at 09:37:34PM +0200, Frank de Jong wrote:
> Hi,
>
> Somewhere between kernel v3.15 and v3.18 several PCI ID refs went missing.
> By accident, I presume. Kernel v3.14 is fine.
>
> This might just be the tip of iceberg, so to speak, as more PCI ID
> refs are probably missing.
>
> In v3.14:
> - "0000:03:00.0" was shown as "pata_pdc2027x" (PCI ID: 105a:4d68)
> - "0000:00:1f.2" was shown as "ahci" (PCI ID: 8086:1c02)
> - "0000:06:00.0" was shown as "ahci" (PCI ID: 1b21:0612)
>
> # snippet from /proc/interrupts
> CPU0 CPU1
> 0: 15 0 IO-APIC-edge timer
> 1: 31 0 IO-APIC-edge i8042
> 4: 39043 0 IO-APIC-edge serial
> 5: 1 0 IO-APIC-edge parport0
> 8: 111 0 IO-APIC-edge rtc0
> 9: 3 0 IO-APIC-fasteoi acpi
> 12: 144 0 IO-APIC-edge i8042
> 16: 99 0 IO-APIC 16-fasteoi ehci_hcd:usb1
> 18: 5173 0 IO-APIC 18-fasteoi 0000:03:00.0
> 19: 2871417 0 IO-APIC 19-fasteoi eth0
> 23: 33 0 IO-APIC 23-fasteoi ehci_hcd:usb4
> 24: 759 0 PCI-MSI-edge 0000:00:1f.2
> 25: 16582 0 PCI-MSI-edge 0000:06:00.0
I think the names shown in /proc/interrupts are supplied by the driver
when it calls request_irq(), so I don't think this is a PCI problem.
It might be a driver problem, but I think it's more likely an
intentional change, either this one or something similar: 4f37b504768c
("libata: Use dev_name() for request_irq() to distinguish devices")
> 26: 29172 0 PCI-MSI-edge eth1
> 27: 502 0 PCI-MSI-edge snd_hda_intel
> 28: 0 0 PCI-MSI-edge xhci_hcd
> 29: 0 0 PCI-MSI-edge xhci_hcd
> 30: 0 0 PCI-MSI-edge xhci_hcd
> 31: 17 0 PCI-MSI-edge i915
>
> # snippet from lspci
> 00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series
> Chipset Family SATA AHCI Controller (rev 05) (prog-if 01 [AHCI 1.0])
> Subsystem: Micro-Star International Co., Ltd. Device 7732
> Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 24
> I/O ports at f0b0 [size=8]
> I/O ports at f0a0 [size=4]
> I/O ports at f090 [size=8]
> I/O ports at f080 [size=4]
> I/O ports at f060 [size=32]
> Memory at f7f05000 (32-bit, non-prefetchable) [size=2K]
> Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
> Capabilities: [70] Power Management version 3
> Capabilities: [a8] SATA HBA v1.0
> Capabilities: [b0] PCI Advanced Features
> Kernel driver in use: ahci
>
> 03:00.0 Mass storage controller: Promise Technology, Inc. PDC20268
> [Ultra100 TX2] (rev 02) (prog-if 85)
> Subsystem: Promise Technology, Inc. Ultra100 TX2
> Flags: bus master, 66MHz, slow devsel, latency 64, IRQ 18
> I/O ports at e0c0 [size=8]
> I/O ports at e0b0 [size=4]
> I/O ports at e0a0 [size=8]
> I/O ports at e090 [size=4]
> I/O ports at e080 [size=16]
> Memory at f7e24000 (32-bit, non-prefetchable) [size=16K]
> Expansion ROM at f7e20000 [disabled] [size=16K]
> Capabilities: [60] Power Management version 1
> Kernel driver in use: pata_pdc2027x
>
> 06:00.0 SATA controller: ASMedia Technology Inc. ASM1062 Serial ATA
> Controller (rev 01) (prog-if 01 [AHCI 1.0])
> Subsystem: Micro-Star International Co., Ltd. Device 7732
> Flags: bus master, fast devsel, latency 0, IRQ 25
> I/O ports at c050 [size=8]
> I/O ports at c040 [size=4]
> I/O ports at c030 [size=8]
> I/O ports at c020 [size=4]
> I/O ports at c000 [size=32]
> Memory at f7c00000 (32-bit, non-prefetchable) [size=512]
> Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit-
> Capabilities: [78] Power Management version 3
> Capabilities: [80] Express Legacy Endpoint, MSI 00
> Capabilities: [100] Virtual Channel
> Kernel driver in use: ahci
>
> Kind regards,
> Frank de Jong
> --
> 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
prev parent reply other threads:[~2015-10-05 17:52 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-04 19:37 missing PCI ID refs Frank de Jong
2015-10-05 17:52 ` Bjorn Helgaas [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20151005175159.GA18545@localhost \
--to=helgaas@kernel.org \
--cc=frapex@xs4all.nl \
--cc=linux-ide@vger.kernel.org \
--cc=linux-pci@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.