Messages in this thread | | | Date | Wed, 6 Aug 2014 10:58:37 -0600 | From | Jason Gunthorpe <> | Subject | Re: [PATCH] PCI: keystone: add a pci quirk to limit mrrs |
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On Wed, Aug 06, 2014 at 12:56:04PM -0400, Murali Karicheri wrote: > On 08/06/2014 12:30 PM, Jason Gunthorpe wrote: > >On Wed, Aug 06, 2014 at 11:18:20AM -0400, Murali Karicheri wrote: > >>Keystone PCI controller has a limitation that memory read request > >>size must not exceed 256 bytes. This is a hardware limitation and > >>add a quirk to force this limit on all downstream devices by > >>updating mrrs. > > > >Does this still work if the tuning is enabled, or does the tuning run > >after this? > > Yes it works with tuning enabled. Tuning happens afterwards. The > 'limiting mrrs to 256' below is from my patch.
That seems backwards to me...
Jason
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