This fix issue when access config from PCIe switch.
The PCIe controller need to send Type 0 config TLP if the targeting bus
matches with the secondary bus number, which is when the TLP is targeting
the immediate device on the link.
The PCIe controller send Type 1 config TLP if the targeting bus is
larger than the secondary bus, which is when the TLP is targeting the
device not immediate on the link.
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
Hardware return completion status non-zero when read from non exist
function in multi-function PCIe device. Return error will cause PCIe
enumeration fail.
Change it to return 0 and return value 0xffffffff when error.
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
Add PCIe driver for Intel FPGA PCIe IP. This driver operates the PCIe IP in
rootport mode only, the EP mode is not supported. The driver is tested
with the Intel e1000e NIC driver.
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
