[Patch v1 1/2] [NetworkPkg/SnpDxe] More logging to see why SnpDxe fails to start

["Frederik van Hövell" <frederik@fvhovell.nl>]

Add debug logging to see where SnpDxe is failing using a UsbIo UNDI
driver.

Signed-off-by: Frederik van Hövell <frederik@fvhovell.nl>
---
 NetworkPkg/SnpDxe/Snp.h | 1 +
 NetworkPkg/SnpDxe/Snp.c | 7 ++++++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/NetworkPkg/SnpDxe/Snp.h b/NetworkPkg/SnpDxe/Snp.h
index d57804ca2873..dec238c9eb2c 100644
--- a/NetworkPkg/SnpDxe/Snp.h
+++ b/NetworkPkg/SnpDxe/Snp.h
@@ -27,6 +27,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 #include <Library/MemoryAllocationLib.h>
 #include <Library/PrintLib.h>
 #include <Library/PcdLib.h>
+#include <Library/DevicePathLib.h>
 
 #include <IndustryStandard/Pci.h>
 #include <IndustryStandard/Acpi.h>
diff --git a/NetworkPkg/SnpDxe/Snp.c b/NetworkPkg/SnpDxe/Snp.c
index 95361c3cd343..86bf527f31dd 100644
--- a/NetworkPkg/SnpDxe/Snp.c
+++ b/NetworkPkg/SnpDxe/Snp.c
@@ -160,6 +160,7 @@ SimpleNetworkDriverSupported (
   // check the version, we don't want to connect to the undi16
   //
   if (NiiProtocol->Type != EfiNetworkInterfaceUndi) {
+    DEBUG ((DEBUG_NET, "%a: Unsupported type %a for handle %p\n", __FUNCTION__, NiiProtocol->Type, Controller));
     Status = EFI_UNSUPPORTED;
     goto Done;
   }
@@ -218,7 +219,7 @@ SimpleNetworkDriverSupported (
   }
 
   Status = EFI_SUCCESS;
-  DEBUG ((DEBUG_INFO, "Support(): supported on %p\n", Controller));
+  DEBUG ((DEBUG_INFO, "%a: supported on %p\n", __FUNCTION__, Controller));
 
 Done:
   gBS->CloseProtocol (
@@ -283,6 +284,7 @@ SimpleNetworkDriverStart (
                   );
 
   if (EFI_ERROR (Status)) {
+    DEBUG ((DEBUG_ERROR, "%a: Failed to get DevicePath for driver %p and handle %p - status %r\n", __FUNCTION__, This->DriverBindingHandle, Controller, Status));
     return Status;
   }
 
@@ -293,6 +295,7 @@ SimpleNetworkDriverStart (
                   );
 
   if (EFI_ERROR (Status)) {
+    DEBUG ((DEBUG_ERROR, "%a: Failed to locate DevicePath using PCI path %s - status %r\n", __FUNCTION__, ConvertDevicePathToText(NiiDevicePath, TRUE, TRUE), Status));
     return Status;
   }
 
@@ -305,6 +308,7 @@ SimpleNetworkDriverStart (
                   EFI_OPEN_PROTOCOL_GET_PROTOCOL
                   );
   if (EFI_ERROR (Status)) {
+    DEBUG ((DEBUG_ERROR, "%a: Failed to open PciIo protocol for driver %p and handle %p - status %r\n", __FUNCTION__, This->DriverBindingHandle, Handle, Status));
     return Status;
   }
 
@@ -320,6 +324,7 @@ SimpleNetworkDriverStart (
                   EFI_OPEN_PROTOCOL_BY_DRIVER
                   );
   if (EFI_ERROR (Status)) {
+    DEBUG ((DEBUG_ERROR, "%a: Failed to open NII protocol for driver %p and controller %p - status %r\n", __FUNCTION__, This->DriverBindingHandle, Controller, Status));
     gBS->CloseProtocol (
            Controller,
            &gEfiDevicePathProtocolGuid,
-- 
2.35.1