Re: [PATCH v3 5/6] PCI/AER: Forward RCH downstream port-detected errors to the CXL.mem dev handler

2023-04-19 Thread Robert Richter
Bjorn, On 18.04.23 00:00:58, Robert Richter wrote: > On 14.04.23 16:32:54, Bjorn Helgaas wrote: > > On Thu, Apr 13, 2023 at 01:40:52PM +0200, Robert Richter wrote: > > > On 12.04.23 17:02:33, Bjorn Helgaas wrote: > > > > On Tue, Apr 11, 2023 at 01:03:01PM -0500, Terry Bowman wrote: > > I'm

Re: [PATCH v3 5/6] PCI/AER: Forward RCH downstream port-detected errors to the CXL.mem dev handler

2023-04-19 Thread Robert Richter
Dan, thanks for review, see comments inline. On 17.04.23 18:01:41, Dan Williams wrote: > Terry Bowman wrote: > > From: Robert Richter > > > > In Restricted CXL Device (RCD) mode a CXL device is exposed as an > > RCiEP, but CXL downstream and upstream ports are not enumerated and > > not

RE: [PATCH v3 5/6] PCI/AER: Forward RCH downstream port-detected errors to the CXL.mem dev handler

2023-04-17 Thread Dan Williams
Terry Bowman wrote: > From: Robert Richter > > In Restricted CXL Device (RCD) mode a CXL device is exposed as an > RCiEP, but CXL downstream and upstream ports are not enumerated and > not visible in the PCIe hierarchy. Protocol and link errors are sent > to an RCEC. > > Restricted CXL host

Re: [PATCH v3 5/6] PCI/AER: Forward RCH downstream port-detected errors to the CXL.mem dev handler

2023-04-17 Thread Robert Richter
On 14.04.23 16:32:54, Bjorn Helgaas wrote: > On Thu, Apr 13, 2023 at 01:40:52PM +0200, Robert Richter wrote: > > On 12.04.23 17:02:33, Bjorn Helgaas wrote: > > > On Tue, Apr 11, 2023 at 01:03:01PM -0500, Terry Bowman wrote: > > > > From: Robert Richter > > > ... > > Let's assume just a simple

Re: [PATCH v3 5/6] PCI/AER: Forward RCH downstream port-detected errors to the CXL.mem dev handler

2023-04-17 Thread Robert Richter
Hi Jonathan, On 17.04.23 17:54:31, Jonathan Cameron wrote: > On Fri, 14 Apr 2023 16:35:05 +0200 > Robert Richter wrote: > > > On 14.04.23 13:19:50, Jonathan Cameron wrote: > > > On Tue, 11 Apr 2023 13:03:01 -0500 > > > Terry Bowman wrote: > > > > > > > From: Robert Richter > > > > > > > >

Re: [PATCH v3 5/6] PCI/AER: Forward RCH downstream port-detected errors to the CXL.mem dev handler

2023-04-17 Thread Jonathan Cameron
On Fri, 14 Apr 2023 16:35:05 +0200 Robert Richter wrote: > On 14.04.23 13:19:50, Jonathan Cameron wrote: > > On Tue, 11 Apr 2023 13:03:01 -0500 > > Terry Bowman wrote: > > > > > From: Robert Richter > > > > > > In Restricted CXL Device (RCD) mode a CXL device is exposed as an > > > RCiEP,

Re: [PATCH v3 5/6] PCI/AER: Forward RCH downstream port-detected errors to the CXL.mem dev handler

2023-04-14 Thread Bjorn Helgaas
On Thu, Apr 13, 2023 at 01:40:52PM +0200, Robert Richter wrote: > On 12.04.23 17:02:33, Bjorn Helgaas wrote: > > On Tue, Apr 11, 2023 at 01:03:01PM -0500, Terry Bowman wrote: > > > From: Robert Richter > ... > Let's assume just a simple CXL RCH topology: > > PCI hierarchy: > >

Re: [PATCH v3 5/6] PCI/AER: Forward RCH downstream port-detected errors to the CXL.mem dev handler

2023-04-14 Thread Robert Richter
On 14.04.23 13:19:50, Jonathan Cameron wrote: > On Tue, 11 Apr 2023 13:03:01 -0500 > Terry Bowman wrote: > > > From: Robert Richter > > > > In Restricted CXL Device (RCD) mode a CXL device is exposed as an > > RCiEP, but CXL downstream and upstream ports are not enumerated and > > not visible

Re: [PATCH v3 5/6] PCI/AER: Forward RCH downstream port-detected errors to the CXL.mem dev handler

2023-04-14 Thread Jonathan Cameron
On Tue, 11 Apr 2023 13:03:01 -0500 Terry Bowman wrote: > From: Robert Richter > > In Restricted CXL Device (RCD) mode a CXL device is exposed as an > RCiEP, but CXL downstream and upstream ports are not enumerated and > not visible in the PCIe hierarchy. Protocol and link errors are sent > to

Re: [PATCH v3 5/6] PCI/AER: Forward RCH downstream port-detected errors to the CXL.mem dev handler

2023-04-13 Thread Robert Richter
Bjorn, thanks for your detailed review. On 12.04.23 17:02:33, Bjorn Helgaas wrote: > On Tue, Apr 11, 2023 at 01:03:01PM -0500, Terry Bowman wrote: > > From: Robert Richter > > > > In Restricted CXL Device (RCD) mode a CXL device is exposed as an > > RCiEP, but CXL downstream and upstream ports

Re: [PATCH v3 5/6] PCI/AER: Forward RCH downstream port-detected errors to the CXL.mem dev handler

2023-04-12 Thread Bjorn Helgaas
On Tue, Apr 11, 2023 at 01:03:01PM -0500, Terry Bowman wrote: > From: Robert Richter > > In Restricted CXL Device (RCD) mode a CXL device is exposed as an > RCiEP, but CXL downstream and upstream ports are not enumerated and > not visible in the PCIe hierarchy. Protocol and link errors are sent