From: Oliver Neukum <oneukum@suse.com>
To: David Laight <David.Laight@ACULAB.COM>,
"'Rafael J. Wysocki'" <rafael@kernel.org>
Cc: Rajat Jain <rajatja@google.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Bjorn Helgaas <bhelgaas@google.com>,
Alan Stern <stern@rowland.harvard.edu>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Linux PCI <linux-pci@vger.kernel.org>,
"open list:ULTRA-WIDEBAND (UWB) SUBSYSTEM:"
<linux-usb@vger.kernel.org>, Bjorn Helgaas <helgaas@kernel.org>,
Rajat Jain <rajatxjain@gmail.com>,
Jesse Barnes <jsbarnes@google.com>,
Dmitry Torokhov <dtor@google.com>
Subject: Re: [PATCH v2 2/2] pci: Support "removable" attribute for PCI devices
Date: Tue, 27 Apr 2021 13:59:52 +0200 [thread overview]
Message-ID: <21c6b5002c5ad36cd7fe0bb849f5eba12a614bca.camel@suse.com> (raw)
In-Reply-To: <79b994f2476249498797e1784f735fd7@AcuMS.aculab.com>
Am Montag, den 26.04.2021, 13:01 +0000 schrieb David Laight:
> From: Rafael J. Wysocki
> > Sent: 26 April 2021 12:49
> >
> > On Mon, Apr 26, 2021 at 11:17 AM Oliver Neukum <oneukum@suse.com> wrote:
> > > Am Freitag, den 23.04.2021, 19:16 -0700 schrieb Rajat Jain:
> > > > Export the already available info, to the userspace via the
> > > > device core, so that userspace can implement whatever policies it
> > > > wants to, for external removable devices.
> > >
> > > Hi,
> > >
> > > is there a way to tell apart whether a device can undergo regular
> > > surprise removal?
> >
> > PCI devices located under a removable parent can undergo surprise
> > removal. The ones on a Thunderbolt chain too.
> >
> > > Do we want that?
> >
> > Do you mean surprise removal? Yes, we do.
>
> Always been true - think of cardbus (PCI pcmcia) cards with
> PCI bridges to external PCI expansion chassis containing
> additional PCI slots.
> The cardbus card is hot removable.
Hi,
that is true for those options, but not for the style
of PCI hotplug which requires you to push a button and wait
for the blinking light.
REgards
Oliver
next prev parent reply other threads:[~2021-04-27 12:00 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-24 2:16 [PATCH v2 1/2] driver core: Move the "removable" attribute from USB to core Rajat Jain
2021-04-24 2:16 ` [PATCH v2 2/2] pci: Support "removable" attribute for PCI devices Rajat Jain
2021-04-26 9:17 ` Oliver Neukum
2021-04-26 11:49 ` Rafael J. Wysocki
2021-04-26 13:01 ` David Laight
2021-04-26 19:47 ` Rajat Jain
2021-04-27 11:59 ` Oliver Neukum [this message]
2021-04-27 12:59 ` David Laight
2021-04-28 6:56 ` Oliver Neukum
2021-04-28 12:21 ` Rafael J. Wysocki
2021-04-29 9:03 ` Oliver Neukum
2021-04-29 9:57 ` Rafael J. Wysocki
2021-04-29 16:59 ` Rajat Jain
2021-05-11 21:30 ` Bjorn Helgaas
2021-05-11 22:15 ` Rajat Jain
2021-05-11 23:02 ` Bjorn Helgaas
2021-05-12 0:02 ` Rajat Jain
2021-05-12 22:28 ` Rajat Jain
2021-04-25 14:58 ` [PATCH v2 1/2] driver core: Move the "removable" attribute from USB to core Alan Stern
2021-05-11 19:22 ` Bjorn Helgaas
2021-05-11 21:36 ` Rajat Jain
2021-05-12 1:00 ` Krzysztof Wilczyński
2021-05-12 1:20 ` Rajat Jain
2021-05-12 22:27 ` Rajat Jain
2021-05-12 23:32 ` Krzysztof Wilczyński
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