linux-pci.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Dominik Brodowski <linux@dominikbrodowski.net>
To: bhelgaas@google.com, linux-pci@vger.kernel.org
Cc: "Michael ." <keltoiboy@gmail.com>,
	linux-kernel@vger.kernel.org,
	Trevor Jacobs <trevor_jacobs@aol.com>,
	Kris Cleveland <tridentperfusion@yahoo.com>,
	Jeff <bluerocksaddles@willitsonline.com>,
	Morgan Klym <moklym@gmail.com>
Subject: PCI device function not being enumerated [Was: PCMCIA not working on Panasonic Toughbook CF-29]
Date: Sun, 20 Oct 2019 11:08:00 +0200	[thread overview]
Message-ID: <20191020090800.GA2778@light.dominikbrodowski.net> (raw)
In-Reply-To: <CANfzparZ17SMzE1qzzF=Rixu=aYpf1RiKqR4KXXS0S+u7Q3TwQ@mail.gmail.com>

On the basis of the additional information (thanks), there might be a
more specific path to investigate: It is that the PCI code does not
enumerate the second cardbus bridge PCI function in the more recent 4.19
kernel compared to the anvient (and working) 2.6 kernel.

Namely, only one CardBus bridge is recognized

...
06:01.0 CardBus bridge: Ricoh Co Ltd RL5c476 II (rev 8b)
06:01.1 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 11)
06:02.0 Network controller: Intel Corporation PRO/Wireless 2915ABG [Calexico2] Network Connection (rev 05)
...

instead of the two which really should be present:

...
06:01.0 CardBus bridge: Ricoh Co Ltd RL5c476 II (rev 8b)
06:01.1 CardBus bridge: Ricoh Co Ltd RL5c476 II (rev 8b)
06:01.2 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 11)
06:02.0 Network controller: Intel Corporation PRO/Wireless 2915ABG [Calexico2] Network Connection (rev 05)
...

To the PCI folks: any idea on what may cause the second cardbus bridge PCI
device function to be missed? Are there any command line options the users
who reported this issue[*] may try?

As this isn't really a PCMCIA (16bit) issue, but a PCI enumeration issue,
this issue is outside my area of expertise.

Thanks,
	Dominik

[*] For more information, see this thread:
	https://lore.kernel.org/lkml/CAFjuqNi+knSb9WVQOahCVFyxsiqoGgwoM7Z1aqDBebNzp_-jYw@mail.gmail.com/

       reply	other threads:[~2019-10-20  9:17 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CAFjuqNh1=B7Ft6v7nzo3BW70EbAvK=Eko_4yqrJ4Z4N3w_Y+Xw@mail.gmail.com>
     [not found] ` <CAFjuqNjLJw8J0nU2oo8rDfDUBavHLC7D0=AAwM62tp6=kHHk-A@mail.gmail.com>
     [not found]   ` <20191015064801.GA104469@owl.dominikbrodowski.net>
     [not found]     ` <CAFjuqNgxAuf+JTkWqhimDspzPd0+s5yGJro=Zi164uoxu4CmOA@mail.gmail.com>
     [not found]       ` <CANfzparZ17SMzE1qzzF=Rixu=aYpf1RiKqR4KXXS0S+u7Q3TwQ@mail.gmail.com>
2019-10-20  9:08         ` Dominik Brodowski [this message]
2019-10-21 16:09           ` PCI device function not being enumerated [Was: PCMCIA not working on Panasonic Toughbook CF-29] Bjorn Helgaas
2019-10-21 18:17             ` Michael .
2019-10-21 18:47               ` Dominik Brodowski
2019-10-21 18:59                 ` Michael .
     [not found]                   ` <CAFjuqNg8_G-B5Owz1NBxa-nw620hXwcn9WkE4sfETVR81MWatA@mail.gmail.com>
     [not found]                     ` <CAFjuqNiToDC9BSJVdahdkPz8Ejb-rM3VRkyoBNUTJr8go=7zrg@mail.gmail.com>
     [not found]                       ` <20191025075536.GA14531@owl.dominikbrodowski.net>
2019-10-25 18:34                         ` Michael .
2019-10-29  8:58                           ` Michael .
2019-10-29 17:02                             ` Bjorn Helgaas
2020-02-22 16:56                               ` Bjorn Helgaas
2020-02-22 18:14                                 ` Michael .
2020-02-25 15:03                                 ` Ulf Hansson
2020-02-25 19:15                                   ` Bjorn Helgaas
2020-02-25 23:46                                   ` bluerocksaddles
2020-02-26  1:13                                   ` Arvind Sankar
2020-02-26  1:50                                     ` Michael .
2020-02-26  3:12                                       ` Trevor Jacobs
2020-02-26  4:51                                         ` Arvind Sankar
2020-02-26  5:20                                           ` Philip Langdale
2020-02-26  6:10                                             ` Michael .
2020-02-26 19:46                                               ` bluerocksaddles
2020-07-28  1:50                                                 ` Michael .
2020-08-02  5:58                                                   ` Michael .

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=20191020090800.GA2778@light.dominikbrodowski.net \
    --to=linux@dominikbrodowski.net \
    --cc=bhelgaas@google.com \
    --cc=bluerocksaddles@willitsonline.com \
    --cc=keltoiboy@gmail.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-pci@vger.kernel.org \
    --cc=moklym@gmail.com \
    --cc=trevor_jacobs@aol.com \
    --cc=tridentperfusion@yahoo.com \
    /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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).