diff options
| author | Christian Bruel <christian.bruel@foss.st.com> | 2026-04-07 14:04:08 +0200 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2026-04-08 14:41:39 -0500 |
| commit | 1d3225cb5d82680143ffd705088199917ceafd76 (patch) | |
| tree | 58983fc5c1f4c9df9ee9eb532d9b9198c1b1de15 /drivers/misc | |
| parent | 5ab7a225888baa5474def18ba3b0a298d27e6ba0 (diff) | |
selftests: pci_endpoint: Skip BAR subrange test on -ENOSPC
In pci-epf-test.c, set the STATUS_NO_RESOURCE status bit if
pci_epc_set_bar() returns -ENOSPC. This status bit is used to indicate
that there are not enough inbound window resources to allocate the
subrange.
In pci_endpoint_test.c, return -ENOSPC instead of -EIO when
STATUS_NO_RESOURCE is set.
In pci_endpoint_test.c, skip the BAR subrange test if -ENOSPC, i.e., there
are not enough inbound window resources to run the test.
Signed-off-by: Christian Bruel <christian.bruel@foss.st.com>
[mani: commit log]
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
[bhelgaas: squash related commits]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Niklas Cassel <cassel@kernel.org>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Koichiro Den <den@valinux.co.jp>
Link: https://patch.msgid.link/20260407-skip-bar_subrange-tests-if-enospc-v4-1-6f2e65f2298c@foss.st.com
Link: https://patch.msgid.link/20260407-skip-bar_subrange-tests-if-enospc-v4-2-6f2e65f2298c@foss.st.com
Link: https://patch.msgid.link/20260407-skip-bar_subrange-tests-if-enospc-v4-3-6f2e65f2298c@foss.st.com
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/pci_endpoint_test.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/misc/pci_endpoint_test.c b/drivers/misc/pci_endpoint_test.c index 38679dfb1f9b..dbd017cabbb9 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) #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 pci_endpoint_test *test, status = pci_endpoint_test_readl(test, PCI_ENDPOINT_TEST_STATUS); if (status & fail_bit) - return -EIO; + return (status & STATUS_NO_RESOURCE) ? -ENOSPC : -EIO; if (!(status & ok_bit)) return -EIO; |