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Here this is used to indicate there are not enough inbound window resources to allocate the subrange. Signed-off-by: Christian Bruel Reviewed-by: Niklas Cassel --- drivers/pci/endpoint/functions/pci-epf-test.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/en= dpoint/functions/pci-epf-test.c index 06bf53b28fb7ae2244a6d82bd5fe76d40db830b7..591d301fa89d89addf5df16e775= e80460b689589 100644 --- a/drivers/pci/endpoint/functions/pci-epf-test.c +++ b/drivers/pci/endpoint/functions/pci-epf-test.c @@ -54,6 +54,7 @@ #define STATUS_BAR_SUBRANGE_SETUP_FAIL BIT(15) #define STATUS_BAR_SUBRANGE_CLEAR_SUCCESS BIT(16) #define STATUS_BAR_SUBRANGE_CLEAR_FAIL BIT(17) +#define STATUS_NO_RESOURCE BIT(18) =20 #define FLAG_USE_DMA BIT(0) =20 @@ -901,6 +902,8 @@ static void pci_epf_test_bar_subrange_setup(struct pci_= epf_test *epf_test, ret =3D pci_epc_set_bar(epc, epf->func_no, epf->vfunc_no, bar); if (ret) { dev_err(&epf->dev, "pci_epc_set_bar() failed: %d\n", ret); + if (ret =3D=3D -ENOSPC) + status |=3D STATUS_NO_RESOURCE; bar->submap =3D old_submap; 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This signifies to the pci_endpoint test to skip this test. Signed-off-by: Christian Bruel Reviewed-by: Niklas Cassel --- drivers/misc/pci_endpoint_test.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/misc/pci_endpoint_test.c b/drivers/misc/pci_endpoint_t= est.c index 55e128ed82f00ae13b6fe9768cdbe56adbe8f9da..202196adf8ad84106ab3cf72016= fa791a74697ee 100644 --- a/drivers/misc/pci_endpoint_test.c +++ b/drivers/misc/pci_endpoint_test.c @@ -61,6 +61,7 @@ #define STATUS_BAR_SUBRANGE_SETUP_FAIL BIT(15) #define STATUS_BAR_SUBRANGE_CLEAR_SUCCESS BIT(16) #define STATUS_BAR_SUBRANGE_CLEAR_FAIL BIT(17) +#define STATUS_NO_RESOURCE BIT(18) =20 #define PCI_ENDPOINT_TEST_LOWER_SRC_ADDR 0x0c #define PCI_ENDPOINT_TEST_UPPER_SRC_ADDR 0x10 @@ -477,7 +478,7 @@ static int pci_endpoint_test_bar_subrange_cmd(struct pc= i_endpoint_test *test, =20 status =3D pci_endpoint_test_readl(test, PCI_ENDPOINT_TEST_STATUS); if (status & fail_bit) - return -EIO; + return (status & STATUS_NO_RESOURCE) ? -ENOSPC : -EIO; =20 if (!(status & ok_bit)) return -EIO; 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Skip the test if the number of available inbound windows is insufficient to map the subrange. Signed-off-by: Christian Bruel Reviewed-by: Niklas Cassel --- tools/testing/selftests/pci_endpoint/pci_endpoint_test.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/testing/selftests/pci_endpoint/pci_endpoint_test.c b/too= ls/testing/selftests/pci_endpoint/pci_endpoint_test.c index c417fb3a198b2d92c3060938c23807cc8bea5573..97212a0b41c930f981687086b58= 8b056cf44ee62 100644 --- a/tools/testing/selftests/pci_endpoint/pci_endpoint_test.c +++ b/tools/testing/selftests/pci_endpoint/pci_endpoint_test.c @@ -88,6 +88,8 @@ TEST_F(pci_ep_bar, BAR_SUBRANGE_TEST) SKIP(return, "Subrange map is not supported"); if (ret =3D=3D -ENOBUFS) SKIP(return, "BAR is reserved"); + if (ret =3D=3D -ENOSPC) + SKIP(return, "Not enough BAR inbound windows"); EXPECT_FALSE(ret) TH_LOG("Test failed for BAR%d", variant->barno); } =20 --=20 2.34.1