Messages in this thread | | | From | "Derrick, Jonathan" <> | Subject | Re: [PATCH 1/2] PCI/DPC: Add 'nodpc' parameter | Date | Thu, 16 Aug 2018 21:28:45 +0000 |
| |
On Thu, 2018-08-16 at 15:19 -0600, Keith Busch wrote: > On Thu, Aug 16, 2018 at 01:50:42PM -0700, Derrick, Jonathan wrote: > > It can also be disabled with setpci, but is that any less of a > > hassle? > > Genuine question to understand your point of view. > > That is not a real solution, IMO. 'setpci' is good to inject things > for testing, but it changes config space without the kernel aware > that > you've done that, so it is inherently racey with other kernel threads > touching pci config space. And the kernel or platform may end up > undoing > what you had 'setpci' do anyway with no immediate way to be notified > it > was changed.
It sounds like a sysfs toggle could be useful regardless of the boot parameter.[unhandled content-type:application/x-pkcs7-signature] | |