From: xdu2 <xdu2@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Tue, 16 Mar 2010 13:16:19 +0000 (+0000)
Subject: Add check of MediaPresentSupported field in SNP mode data to support UNDI without... 
X-Git-Tag: edk2-stable201903~16082
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=412d1ed9fcfa169548993acb7b2bc4ffb0b77649;p=mirror_edk2.git

Add check of MediaPresentSupported field in SNP mode data to support UNDI without cable detect capability.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10256 6f19259b-4bc3-4df7-8a09-765794883524
---

diff --git a/MdeModulePkg/Universal/Network/MnpDxe/MnpIo.c b/MdeModulePkg/Universal/Network/MnpDxe/MnpIo.c
index 32cffd5730..695873d2f6 100644
--- a/MdeModulePkg/Universal/Network/MnpDxe/MnpIo.c
+++ b/MdeModulePkg/Universal/Network/MnpDxe/MnpIo.c
@@ -214,10 +214,11 @@ MnpSyncSendPacket (
   // Check media status before transmit packet.
   // Note: media status will be updated by periodic timer MediaDetectTimer.
   //
-  if (!Snp->Mode->MediaPresent) {
+  if (Snp->Mode->MediaPresentSupported && !Snp->Mode->MediaPresent) {
     //
     // Media not present, skip packet transmit and report EFI_NO_MEDIA
     //
+    DEBUG ((EFI_D_WARN, "MnpSyncSendPacket: No network cable detected.\n"));
     Status = EFI_NO_MEDIA;
     goto SIGNAL_TOKEN;
   }