Re: [RFC 1/1] s390/pci: expose UID checking state in sysfs

2021-01-21 Thread Niklas Schnelle
On 1/21/21 6:28 PM, Greg Kroah-Hartman wrote: > On Thu, Jan 21, 2021 at 06:04:52PM +0100, Niklas Schnelle wrote: >> >> >> On 1/21/21 4:54 PM, Bjorn Helgaas wrote: >>> [Greg may be able to help compare/contrast this s390 UID with udev >>> persistent names] >>> >>> On Thu, Jan 21, 2021 at

Re: [RFC 1/1] s390/pci: expose UID checking state in sysfs

2021-01-21 Thread Greg Kroah-Hartman
On Thu, Jan 21, 2021 at 06:04:52PM +0100, Niklas Schnelle wrote: > > > On 1/21/21 4:54 PM, Bjorn Helgaas wrote: > > [Greg may be able to help compare/contrast this s390 UID with udev > > persistent names] > > > > On Thu, Jan 21, 2021 at 04:31:55PM +0100, Niklas Schnelle wrote: > >> On 1/15/21

Re: [RFC 1/1] s390/pci: expose UID checking state in sysfs

2021-01-21 Thread Niklas Schnelle
On 1/21/21 4:54 PM, Bjorn Helgaas wrote: > [Greg may be able to help compare/contrast this s390 UID with udev > persistent names] > > On Thu, Jan 21, 2021 at 04:31:55PM +0100, Niklas Schnelle wrote: >> On 1/15/21 4:29 PM, Bjorn Helgaas wrote: >>> On Fri, Jan 15, 2021 at 12:20:59PM +0100,

Re: [RFC 1/1] s390/pci: expose UID checking state in sysfs

2021-01-21 Thread Bjorn Helgaas
[Greg may be able to help compare/contrast this s390 UID with udev persistent names] On Thu, Jan 21, 2021 at 04:31:55PM +0100, Niklas Schnelle wrote: > On 1/15/21 4:29 PM, Bjorn Helgaas wrote: > > On Fri, Jan 15, 2021 at 12:20:59PM +0100, Niklas Schnelle wrote: > >> On 1/14/21 5:14 PM, Greg

Re: [RFC 1/1] s390/pci: expose UID checking state in sysfs

2021-01-21 Thread Greg Kroah-Hartman
On Thu, Jan 21, 2021 at 09:54:45AM -0600, Bjorn Helgaas wrote: > [Greg may be able to help compare/contrast this s390 UID with udev > persistent names] > > On Thu, Jan 21, 2021 at 04:31:55PM +0100, Niklas Schnelle wrote: > > On 1/15/21 4:29 PM, Bjorn Helgaas wrote: > > > On Fri, Jan 15, 2021 at

Re: [RFC 1/1] s390/pci: expose UID checking state in sysfs

2021-01-21 Thread Niklas Schnelle
On 1/15/21 4:29 PM, Bjorn Helgaas wrote: > On Fri, Jan 15, 2021 at 12:20:59PM +0100, Niklas Schnelle wrote: >> On 1/14/21 5:14 PM, Greg Kroah-Hartman wrote: >>> On Thu, Jan 14, 2021 at 04:51:17PM +0100, Niklas Schnelle wrote: On 1/14/21 4:17 PM, Greg Kroah-Hartman wrote: > On Thu, Jan

Re: [RFC 1/1] s390/pci: expose UID checking state in sysfs

2021-01-15 Thread Niklas Schnelle
On 1/15/21 4:29 PM, Bjorn Helgaas wrote: > On Fri, Jan 15, 2021 at 12:20:59PM +0100, Niklas Schnelle wrote: >> On 1/14/21 5:14 PM, Greg Kroah-Hartman wrote: >>> On Thu, Jan 14, 2021 at 04:51:17PM +0100, Niklas Schnelle wrote: On 1/14/21 4:17 PM, Greg Kroah-Hartman wrote: > On Thu, Jan

Re: [RFC 1/1] s390/pci: expose UID checking state in sysfs

2021-01-15 Thread Bjorn Helgaas
On Fri, Jan 15, 2021 at 12:20:59PM +0100, Niklas Schnelle wrote: > On 1/14/21 5:14 PM, Greg Kroah-Hartman wrote: > > On Thu, Jan 14, 2021 at 04:51:17PM +0100, Niklas Schnelle wrote: > >> On 1/14/21 4:17 PM, Greg Kroah-Hartman wrote: > >>> On Thu, Jan 14, 2021 at 04:06:11PM +0100, Niklas Schnelle

Re: [RFC 1/1] s390/pci: expose UID checking state in sysfs

2021-01-15 Thread Greg Kroah-Hartman
On Fri, Jan 15, 2021 at 12:20:59PM +0100, Niklas Schnelle wrote: > > > On 1/14/21 5:14 PM, Greg Kroah-Hartman wrote: > > On Thu, Jan 14, 2021 at 04:51:17PM +0100, Niklas Schnelle wrote: > >> > >> > >> On 1/14/21 4:17 PM, Greg Kroah-Hartman wrote: > >>> On Thu, Jan 14, 2021 at 04:06:11PM +0100,

Re: [RFC 1/1] s390/pci: expose UID checking state in sysfs

2021-01-15 Thread Niklas Schnelle
On 1/14/21 5:14 PM, Greg Kroah-Hartman wrote: > On Thu, Jan 14, 2021 at 04:51:17PM +0100, Niklas Schnelle wrote: >> >> >> On 1/14/21 4:17 PM, Greg Kroah-Hartman wrote: >>> On Thu, Jan 14, 2021 at 04:06:11PM +0100, Niklas Schnelle wrote: On 1/14/21 2:58 PM, Greg Kroah-Hartman

Re: [RFC 1/1] s390/pci: expose UID checking state in sysfs

2021-01-14 Thread Greg Kroah-Hartman
On Thu, Jan 14, 2021 at 04:51:17PM +0100, Niklas Schnelle wrote: > > > On 1/14/21 4:17 PM, Greg Kroah-Hartman wrote: > > On Thu, Jan 14, 2021 at 04:06:11PM +0100, Niklas Schnelle wrote: > >> > >> > >> On 1/14/21 2:58 PM, Greg Kroah-Hartman wrote: > >>> On Thu, Jan 14, 2021 at 02:44:53PM +0100,

Re: [RFC 1/1] s390/pci: expose UID checking state in sysfs

2021-01-14 Thread Niklas Schnelle
On 1/14/21 4:17 PM, Greg Kroah-Hartman wrote: > On Thu, Jan 14, 2021 at 04:06:11PM +0100, Niklas Schnelle wrote: >> >> >> On 1/14/21 2:58 PM, Greg Kroah-Hartman wrote: >>> On Thu, Jan 14, 2021 at 02:44:53PM +0100, Christian Brauner wrote: On Thu, Jan 14, 2021 at 02:20:10PM +0100, Niklas

Re: [RFC 1/1] s390/pci: expose UID checking state in sysfs

2021-01-14 Thread Greg Kroah-Hartman
On Thu, Jan 14, 2021 at 04:06:11PM +0100, Niklas Schnelle wrote: > > > On 1/14/21 2:58 PM, Greg Kroah-Hartman wrote: > > On Thu, Jan 14, 2021 at 02:44:53PM +0100, Christian Brauner wrote: > >> On Thu, Jan 14, 2021 at 02:20:10PM +0100, Niklas Schnelle wrote: > >>> > >>> > >>> On 1/13/21 7:55 PM,

Re: [RFC 1/1] s390/pci: expose UID checking state in sysfs

2021-01-14 Thread Niklas Schnelle
On 1/14/21 2:58 PM, Greg Kroah-Hartman wrote: > On Thu, Jan 14, 2021 at 02:44:53PM +0100, Christian Brauner wrote: >> On Thu, Jan 14, 2021 at 02:20:10PM +0100, Niklas Schnelle wrote: >>> >>> >>> On 1/13/21 7:55 PM, Bjorn Helgaas wrote: On Wed, Jan 13, 2021 at 08:47:58AM +0100, Niklas

Re: [RFC 1/1] s390/pci: expose UID checking state in sysfs

2021-01-14 Thread Greg Kroah-Hartman
On Thu, Jan 14, 2021 at 02:44:53PM +0100, Christian Brauner wrote: > On Thu, Jan 14, 2021 at 02:20:10PM +0100, Niklas Schnelle wrote: > > > > > > On 1/13/21 7:55 PM, Bjorn Helgaas wrote: > > > On Wed, Jan 13, 2021 at 08:47:58AM +0100, Niklas Schnelle wrote: > > >> On 1/12/21 10:50 PM, Bjorn

Re: [RFC 1/1] s390/pci: expose UID checking state in sysfs

2021-01-14 Thread Christian Brauner
On Thu, Jan 14, 2021 at 02:20:10PM +0100, Niklas Schnelle wrote: > > > On 1/13/21 7:55 PM, Bjorn Helgaas wrote: > > On Wed, Jan 13, 2021 at 08:47:58AM +0100, Niklas Schnelle wrote: > >> On 1/12/21 10:50 PM, Bjorn Helgaas wrote: > >>> On Mon, Jan 11, 2021 at 10:38:57AM +0100, Niklas Schnelle

Re: [RFC 1/1] s390/pci: expose UID checking state in sysfs

2021-01-14 Thread Niklas Schnelle
On 1/13/21 7:55 PM, Bjorn Helgaas wrote: > On Wed, Jan 13, 2021 at 08:47:58AM +0100, Niklas Schnelle wrote: >> On 1/12/21 10:50 PM, Bjorn Helgaas wrote: >>> On Mon, Jan 11, 2021 at 10:38:57AM +0100, Niklas Schnelle wrote: We use the UID of a zPCI adapter, or the UID of the function zero if

Re: [RFC 1/1] s390/pci: expose UID checking state in sysfs

2021-01-13 Thread Bjorn Helgaas
On Wed, Jan 13, 2021 at 08:47:58AM +0100, Niklas Schnelle wrote: > On 1/12/21 10:50 PM, Bjorn Helgaas wrote: > > On Mon, Jan 11, 2021 at 10:38:57AM +0100, Niklas Schnelle wrote: > >> We use the UID of a zPCI adapter, or the UID of the function zero if > >> there are multiple functions in an

Re: [RFC 1/1] s390/pci: expose UID checking state in sysfs

2021-01-12 Thread Niklas Schnelle
On 1/12/21 10:50 PM, Bjorn Helgaas wrote: > On Mon, Jan 11, 2021 at 10:38:57AM +0100, Niklas Schnelle wrote: >> We use the UID of a zPCI adapter, or the UID of the function zero if >> there are multiple functions in an adapter, as PCI domain if and only if >> UID Checking is turned on. >>

Re: [RFC 1/1] s390/pci: expose UID checking state in sysfs

2021-01-12 Thread Bjorn Helgaas
On Mon, Jan 11, 2021 at 10:38:57AM +0100, Niklas Schnelle wrote: > We use the UID of a zPCI adapter, or the UID of the function zero if > there are multiple functions in an adapter, as PCI domain if and only if > UID Checking is turned on. > Otherwise we automatically generate domains as devices

[RFC 1/1] s390/pci: expose UID checking state in sysfs

2021-01-11 Thread Niklas Schnelle
We use the UID of a zPCI adapter, or the UID of the function zero if there are multiple functions in an adapter, as PCI domain if and only if UID Checking is turned on. Otherwise we automatically generate domains as devices appear. The state of UID Checking is thus essential to know if the PCI