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From: "Luís Mendes" <luis.p.mendes@gmail.com>
To: Bjorn Helgaas <helgaas@kernel.org>
Cc: Nicholas Johnson <nicholas.johnson-opensource@outlook.com.au>,
	Linux PCI <linux-pci@vger.kernel.org>,
	Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
	Jason Cooper <jason@lakedaemon.net>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>
Subject: Re: Problem with PCIe enumeration of Google/Coral TPU Edge module on Linux
Date: Thu, 2 Apr 2020 15:13:36 +0100	[thread overview]
Message-ID: <CAEzXK1qmYkpHzhbBmYG_Mvk+s6-NAJO-17+VW9fm-=trSZ-v5Q@mail.gmail.com> (raw)
In-Reply-To: <20200401233121.GA152016@google.com>

Hi Bjorn,

The command that worked was:
#  sh -c "echo 1 >
/sys/bus/pci/devices/0000\:00\:01.0/pci_bus/0000\:01/bus_rescan"

The only new information compared to yesterday dmesg are the following lines:
...
[   20.633566] mvneta f1070000.ethernet eth0: Link is Up - 1Gbps/Full
- flow control off
[   20.633598] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 1048.661591] FAT-fs (sda1): Volume was not properly unmounted. Some
data may be corrupt. Please run fsck.
[ 1049.792121] EXT4-fs (sdb1): mounted filesystem with ordered data
mode. Opts: (null)
[60026.321476] pci_bus 0000:01: __pci_bus_assign_resources
[60026.321481] pci_bus 0000:01: pbus_assign_resources_sorted
[60026.321485] pci 0000:01:00.0: __dev_sort_resources
[60026.321487] __assign_resources_sorted
[60026.321490] pci 0000:01:00.0: __pci_bus_assign_resources
[60026.321493] pci 0000:01:00.0: pdev_assign_fixed_resources

Luís

On Thu, Apr 2, 2020 at 12:31 AM Bjorn Helgaas <helgaas@kernel.org> wrote:
>
> On Wed, Apr 01, 2020 at 10:20:42PM +0100, Luís Mendes wrote:
> > Hi Bjorn,
> >
> > Here is the dmesg output with the new kernel patch:
> > https://paste.ubuntu.com/p/7cv7ZcyrnG/
>
> Thanks.  What happens if you do this:
>
>   # echo 1 > sys/devices/pci0000:00/0000:00:01.0/pci_bus/0000:01/rescan
>
> (I think on v5.6 that file is "bus_rescan" instead of "rescan".
> There's a patch queued up to change it.)

  reply	other threads:[~2020-04-02 14:13 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-06 14:32 Problem with PCIe enumeration of Google/Coral TPU Edge module on Linux Luís Mendes
2020-03-06 21:47 ` Bjorn Helgaas
2020-03-07 12:11   ` Luís Mendes
2020-03-07 15:26     ` Luís Mendes
2020-03-07 21:38       ` Bjorn Helgaas
2020-03-08  5:51         ` Nicholas Johnson
2020-03-09 11:21           ` Luís Mendes
2020-03-11 14:20             ` Luís Mendes
2020-03-29 22:11               ` Luís Mendes
2020-03-30 19:49                 ` Bjorn Helgaas
2020-03-31 21:28                   ` Luís Mendes
2020-04-01 18:16                     ` Bjorn Helgaas
2020-04-01 21:20                       ` Luís Mendes
2020-04-01 21:55                         ` Luís Mendes
2020-04-01 23:31                         ` Bjorn Helgaas
2020-04-02 14:13                           ` Luís Mendes [this message]
2020-04-04  1:32                             ` Bjorn Helgaas
2020-04-04 21:39                               ` Luís Mendes
2020-04-08 23:05                                 ` Luís Mendes
2020-04-09 15:25                                   ` Luís Mendes
2020-04-09 15:29                                     ` Luís Mendes
2020-04-09 16:30                                     ` Bjorn Helgaas
2020-04-09 17:32                                       ` Luís Mendes
2020-04-09 18:08                                       ` Bjorn Helgaas
2020-04-09 20:07                                         ` Luís Mendes

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