device/pciexp: Match Max_Payload_Size between ends of a link

Ends of a PCIe link may advertise different Max_Payload_Size in
their PCIe Express Capabilities, Device Capabilities block.

For correct operation, both ends of the link need to have their
Device Control Max_Payload_Size programmed to match and not
exceed the other end's Device Capabilities.

Fixes: https://ticket.coreboot.org/issues/218

Change-Id: I8b1de13e9c73abb30e5ccc792918bb4f81e5fe84
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37769
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>

0 files changed, 0 insertions, 0 deletions