Re: [PATCH v5 03/23] PCI: hotplug: Add a flag for the movable BARs feature

2019-10-16 Thread Bjorn Helgaas
On Wed, Oct 16, 2019 at 06:50:30PM +0300, Sergey Miroshnichenko wrote: > On 10/16/19 1:14 AM, Bjorn Helgaas wrote: > > On Mon, Sep 30, 2019 at 03:59:25PM +0300, Sergey Miroshnichenko wrote: > > > On 9/28/19 1:02 AM, Bjorn Helgaas wrote: > > > > It's possible that a hot-add will trigger this

Re: [PATCH v5 03/23] PCI: hotplug: Add a flag for the movable BARs feature

2019-10-16 Thread Sergey Miroshnichenko
On 10/16/19 1:14 AM, Bjorn Helgaas wrote: On Mon, Sep 30, 2019 at 03:59:25PM +0300, Sergey Miroshnichenko wrote: Hello Bjorn, On 9/28/19 1:02 AM, Bjorn Helgaas wrote: On Fri, Aug 16, 2019 at 07:50:41PM +0300, Sergey Miroshnichenko wrote: When hot-adding a device, the bridge may have windows

Re: [PATCH v5 03/23] PCI: hotplug: Add a flag for the movable BARs feature

2019-10-15 Thread Bjorn Helgaas
On Mon, Sep 30, 2019 at 03:59:25PM +0300, Sergey Miroshnichenko wrote: > Hello Bjorn, > > On 9/28/19 1:02 AM, Bjorn Helgaas wrote: > > On Fri, Aug 16, 2019 at 07:50:41PM +0300, Sergey Miroshnichenko wrote: > > > When hot-adding a device, the bridge may have windows not big enough (or > > >

Re: [PATCH v5 03/23] PCI: hotplug: Add a flag for the movable BARs feature

2019-09-30 Thread Sergey Miroshnichenko
Hello David, On 9/30/19 11:44 AM, David Laight wrote: From: Bjorn Helgaas Sent: 27 September 2019 23:02 On Fri, Aug 16, 2019 at 07:50:41PM +0300, Sergey Miroshnichenko wrote: When hot-adding a device, the bridge may have windows not big enough (or fragmented too much) for newly requested BARs

Re: [PATCH v5 03/23] PCI: hotplug: Add a flag for the movable BARs feature

2019-09-30 Thread Sergey Miroshnichenko
Hello Bjorn, On 9/28/19 1:02 AM, Bjorn Helgaas wrote: On Fri, Aug 16, 2019 at 07:50:41PM +0300, Sergey Miroshnichenko wrote: When hot-adding a device, the bridge may have windows not big enough (or fragmented too much) for newly requested BARs to fit in. And expanding these bridge windows may

RE: [PATCH v5 03/23] PCI: hotplug: Add a flag for the movable BARs feature

2019-09-30 Thread David Laight
From: Bjorn Helgaas > Sent: 27 September 2019 23:02 > On Fri, Aug 16, 2019 at 07:50:41PM +0300, Sergey Miroshnichenko wrote: > > When hot-adding a device, the bridge may have windows not big enough (or > > fragmented too much) for newly requested BARs to fit in. And expanding > > these bridge

Re: [PATCH v5 03/23] PCI: hotplug: Add a flag for the movable BARs feature

2019-09-27 Thread Bjorn Helgaas
On Fri, Aug 16, 2019 at 07:50:41PM +0300, Sergey Miroshnichenko wrote: > When hot-adding a device, the bridge may have windows not big enough (or > fragmented too much) for newly requested BARs to fit in. And expanding > these bridge windows may be impossible because blocked by "neighboring" >