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From: Mika Westerberg <mika.westerberg@linux.intel.com>
To: Bjorn Helgaas <bhelgaas@google.com>
Cc: Ashok Raj <ashok.raj@intel.com>,
	Keith Busch <keith.busch@intel.com>,
	"Rafael J . Wysocki" <rafael.j.wysocki@intel.com>,
	Lukas Wunner <lukas@wunner.de>,
	Michael Jamet <michael.jamet@intel.com>,
	Yehezkel Bernat <yehezkel.bernat@intel.com>,
	Mario.Limonciello@dell.com, linux-pci@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/7] PCI: Improvements for native PCIe hotplug
Date: Mon, 9 Oct 2017 11:47:39 +0300	[thread overview]
Message-ID: <20171009084739.GK2761@lahna.fi.intel.com> (raw)
In-Reply-To: <20170926141720.25067-1-mika.westerberg@linux.intel.com>

On Tue, Sep 26, 2017 at 05:17:13PM +0300, Mika Westerberg wrote:
> Hi,
> 
> Currently when plugging PCIe device using native PCIe hotplug Linux PCI
> core tries to allocate bus space and resources so that the newly enumerated
> topology barely fits there. Now, if the PCIe topology that was just plugged
> in has more PCIe hotplug ports we will run out of bus space and resources
> pretty quickly. There is a workaround for this by passing pci=hpbussize=N
> in the kernel command line but it runs to the same situation after next
> hotplug.

Hi Bjorn,

Do you have any comments regarding this series? I think I need to respin
this on top of Andy's for_each_pci_bridge() patch but if there are other
comments I can address them at the same time.

Thanks!

      parent reply	other threads:[~2017-10-09  8:56 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-26 14:17 Mika Westerberg
2017-09-26 14:17 ` [PATCH 1/7] PCI: Do not allocate more buses than available in parent Mika Westerberg
2017-09-26 14:17 ` [PATCH 2/7] PCI: Introduce pcie_upstream_port() Mika Westerberg
2017-09-26 14:17 ` [PATCH 3/7] PCI: Distribute available buses to hotplug capable PCIe downstream ports Mika Westerberg
2017-10-11 23:32   ` Bjorn Helgaas
2017-10-12  9:50     ` David Laight
2017-10-12 12:47     ` Mika Westerberg
2017-10-12 18:32       ` Bjorn Helgaas
2017-10-13 10:26         ` Mika Westerberg
2017-09-26 14:17 ` [PATCH 4/7] PCI: Distribute available resources " Mika Westerberg
2017-09-26 14:17 ` [PATCH 5/7] PCI: pciehp: Fix race condition handling surprise link down Mika Westerberg
2017-09-26 14:17 ` [PATCH 6/7] PCI: pciehp: Do not clear Presence Detect Changed during initialization Mika Westerberg
2017-09-26 14:17 ` [PATCH 7/7] PCI: pciehp: Check that the device is really present before touching it Mika Westerberg
2017-10-09  8:47 ` Mika Westerberg [this message]

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