[PATCH v2 2/3] drivers: pci: sandbox: Add stub sandbox PCI MPS support
stcarlso at linux.microsoft.com
stcarlso at linux.microsoft.com
Fri Mar 10 20:07:14 CET 2023
From: Stephen Carlson <stcarlso at linux.microsoft.com>
Reports the sandbox swapcase PCI Express device to support a 256 byte
Maximum Payload Size for MPS tuning tests.
Signed-off-by: Stephen Carlson <stcarlso at linux.microsoft.com>
---
drivers/misc/swap_case.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/misc/swap_case.c b/drivers/misc/swap_case.c
index 7093ad1cd4..ee5c12bd0a 100644
--- a/drivers/misc/swap_case.c
+++ b/drivers/misc/swap_case.c
@@ -165,6 +165,9 @@ static int sandbox_swap_case_read_config(const struct udevice *emul,
case PCI_CAP_ID_EXP_OFFSET + PCI_CAP_LIST_NEXT:
*valuep = PCI_CAP_ID_MSIX_OFFSET;
break;
+ case PCI_CAP_ID_EXP_OFFSET + PCI_EXP_DEVCAP:
+ *valuep = PCI_EXP_DEVCAP_PAYLOAD_256B;
+ break;
case PCI_CAP_ID_MSIX_OFFSET:
if (sandbox_swap_case_use_ea(emul))
*valuep = (PCI_CAP_ID_EA_OFFSET << 8) | PCI_CAP_ID_MSIX;
--
2.25.1
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