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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 Reviewed-by: Frank Li Reviewed-by: Koichiro Den --- 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 14e61ebe1f116ce04789b6f4c3e965296701ec53..7eb94dffac2d193477a43decd7b= 952c78b99eb5f 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; 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This signifies to the pci_endpoint test to skip this test. Signed-off-by: Christian Bruel Reviewed-by: Niklas Cassel Reviewed-by: Frank Li Reviewed-by: Koichiro Den --- 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 38679dfb1f9b67d92a2d0d90a1a58b72ea9fde6b..dbd017cabbb92394c20d07c4785= 18f5fefe2067e 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 @@ -480,7 +481,7 @@ 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; 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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 Reviewed-by: Frank Li Reviewed-by: Koichiro Den --- 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..588d75c97ad181d2f8e84c9b86b= 865439152e20d 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 inbound windows"); EXPECT_FALSE(ret) TH_LOG("Test failed for BAR%d", variant->barno); } =20 --=20 2.34.1