Kelvin Cao 526180408b switchtec: Remove immediate status check after submitting MRPC command ... After submitting a Firmware Download MRPC command, Switchtec firmware will delay Management EP BAR MemRd TLP responses by more than 10ms. This is a firmware limitation. Delayed MemRd completions are a problem for systems with a low Completion Timeout (CTO). The current driver checks the MRPC status immediately after submitting an MRPC command, which results in a delayed MemRd completion that may cause a Completion Timeout. Remove the immediate status check and rely on the check after receiving an interrupt or timing out. This is only a software workaround to the READ issue and a proper fix of this should be done in firmware. Fixes: 080b47def5 ("MicroSemi Switchtec management interface driver") Signed-off-by: Kelvin Cao <kelvin.cao@microchip.com> Signed-off-by: Wesley Sheng <wesley.sheng@microchip.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Logan Gunthorpe <logang@deltatee.com>		2018-12-12 16:30:03 -06:00
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Kconfig	PCI: Add SPDX GPL-2.0 when no license was specified	2018-01-26 11:45:16 -06:00
Makefile	PCI: Add SPDX GPL-2.0 when no license was specified	2018-01-26 11:45:16 -06:00
switchtec.c	switchtec: Remove immediate status check after submitting MRPC command	2018-12-12 16:30:03 -06:00