[PATCH] PCI: Mark Nvidia GB10 to avoid bus reset

[Johnny-CC Chang (張晋嘉)]

On Tue, 2025-11-18 at 17:39 +0800, Johnny-CC Chang wrote:
> On Thu, 2025-11-13 at 10:39 +0100, Lukas Wunner wrote:
> > On Thu, Nov 13, 2025 at 04:44:06PM +0800, Johnny Chang wrote:
> > > Nvidia GB10 PCIe hosts will encounter problem occasionally
> > > after SBR(secondary bus reset) is applied.
> > 
> > Could you elaborate what kinds of problems occur, how often they
> > occur, etc?
> 
> There is about 1/1000 chance that after SBR is applied, any further
> access via this root port will be blocked and make system crash. 
> 
> Thanks,
> 
> Johnny

I would like to update below description to replace original comment in
v1 patch, is this information sufficient? 
--------
/*
 * After SBR(secondary bus reset) is applied on an Nvidia GB10
 * PCIe root port, there is 1/1000 chance that further requests
 * via this root port will be blocked and cause system unstable.
 */
--------