Add a functional test that exercises the AST2600 PCIe RC_H by creating a root port and an e1000e endpoint behind it. The AST2600/ASPEED driver treats root bus 0x80 specially: only two device addresses are usable on the root bus, addr 0 (ASPEED host bridge) and addr 8. To attach endpoints without code changes, the test places a QEMU PCIe root port at 0x80:08.0 and hangs e1000e behind it so the endpoint enumerates on bus 0x81.
The test appends: -device pcie-root-port,id=root_port0,slot=1,addr=8,bus=pcie.0 -device e1000e,netdev=net0,bus=root_port0 -netdev user,id=net0 It then verifies enumeration with lspci: 0001:80:00.0 Host bridge: ASPEED Technology, Inc. AST1150 PCI-to-PCI Bridge 0001:80:08.0 PCI bridge: Red Hat, Inc. QEMU PCIe Root port 0001:81:00.0 Ethernet controller: Intel Corporation 82574L Gigabit Network Connection This is a temporary solution that allows attaching multiple PCIe devices while the ASPEED drivers does not support placing endpoints directly on bus numbers 0x80. Reference: https://github.com/AspeedTech-BMC/linux/blob/aspeed-master-v6.6/drivers/pci/controller/pcie-aspeed.c#L309 Signed-off-by: Jamin Lin <jamin_...@aspeedtech.com> --- tests/functional/test_arm_aspeed_ast2600.py | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/tests/functional/test_arm_aspeed_ast2600.py b/tests/functional/test_arm_aspeed_ast2600.py index fdae4c939d..9ffcef513d 100755 --- a/tests/functional/test_arm_aspeed_ast2600.py +++ b/tests/functional/test_arm_aspeed_ast2600.py @@ -110,6 +110,10 @@ def test_arm_ast2600_evb_sdk(self): 'tmp105,bus=aspeed.i2c.bus.5,address=0x4d,id=tmp-test') self.vm.add_args('-device', 'ds1338,bus=aspeed.i2c.bus.5,address=0x32') + self.vm.add_args('-device', + 'pcie-root-port,id=root_port0,slot=1,addr=8,bus=pcie.0') + self.vm.add_args('-device', 'e1000e,netdev=net0,bus=root_port0') + self.vm.add_args('-netdev', 'user,id=net0') self.do_test_arm_aspeed_sdk_start( self.scratch_file("ast2600-default", "image-bmc")) @@ -136,5 +140,15 @@ def test_arm_ast2600_evb_sdk(self): exec_command_and_wait_for_pattern(self, '/sbin/hwclock -f /dev/rtc1', year) + exec_command_and_wait_for_pattern(self, + 'lspci -s 0001:80:00.0', + '0001:80:00.0 Host bridge: ASPEED Technology, Inc. AST1150 PCI-to-PCI Bridge') + exec_command_and_wait_for_pattern(self, + 'lspci -s 0001:80:08.0', + '0001:80:08.0 PCI bridge: Red Hat, Inc. QEMU PCIe Root port') + exec_command_and_wait_for_pattern(self, + 'lspci -s 0001:81:00.0', + '0001:81:00.0 Ethernet controller: Intel Corporation 82574L Gigabit Network Connection') + if __name__ == '__main__': AspeedTest.main() -- 2.43.0
