On Mon, Mar 23, 2026 at 12:59:26PM +0100, Christian Bruel wrote: > For platforms with a limited iATU inbound window entries, pci_epc_set_bar() > might fail to allocate the ATU entries for subrange maps requiring more > than 1 slot. > For the dwc controller, this failure is reported with -ENOSPC in > dw_pcie_ep_set_bar(). In this case, the epf test cannot be run and needs > to be skipped. > > For other controllers (Rockchip, RCar, Cadence) the .set_bar functions do > not use this error. > > Signed-off-by: Christian Bruel <[email protected]> > --- > Changes in v3: > - Remove 'BAR' from SKIP print message (Niklas) > - Added 'Reviewed-by: Niklas Cassel <[email protected]>' tag > - Link to v2: > https://lore.kernel.org/r/20260323-skip-bar_subrange-tests-if-enospc-v2-0-2080f8781...@foss.st.com > > Changes in v2: > - Rebased, reordered patches > - Clarified reporting message in selftest > - Renamed STATUS_BAR_SUBRANGE_SETUP_NOPSC STATUS_NO_RESOURCE > - Link to v1: > https://lore.kernel.org/r/20260318-skip-bar_subrange-tests-if-enospc-v1-0-f1a49534e...@foss.st.com > > --- > Christian Bruel (3): > PCI: endpoint: pci-epf-test: Handle -ENOSPC in subrange_setup > misc: pci_endpoint_test: Handle -ENOSPC in subrange mapping test case > selftests: pci_endpoint: Skip BAR subrange test on -ENOSPC > > drivers/misc/pci_endpoint_test.c | 3 ++- > drivers/pci/endpoint/functions/pci-epf-test.c | 3 +++ > tools/testing/selftests/pci_endpoint/pci_endpoint_test.c | 2 ++ > 3 files changed, 7 insertions(+), 1 deletion(-) > --- > base-commit: 785f0eb2f85decbe7c1ef9ae922931f0194ffc2e > change-id: 20260318-skip-bar_subrange-tests-if-enospc-c26f03038e92 > > Best regards, > -- > Christian Bruel <[email protected]>
Hi Christian, Thanks for the work. Looks good to me. Reviewed-by: Koichiro Den <[email protected]> For maintainers: For this series to behave as intended in all scenarios, please apply [1] first, then apply this series on top, as it depends on [1]. [1] https://lore.kernel.org/linux-pci/[email protected]/ Best regards, Koichiro >
