For network dynamic media support:

1. add library function NetLibDetectMedia to NetLib for media detection
2. update MnpDxe to periodically poll for media status update and check for media status before packet transmit
3. update Ip4Dxe to return ModeData using Mnp->GetModeData()
4. update IScsiDxe to check for media status before try to do DHCP and session login
5. update UefiPxeBcDxe to check for media status before PXE start

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9919 6f19259b-4bc3-4df7-8a09-765794883524

4 files changed, 32 insertions, 4 deletions

diff --git a/MdeModulePkg/Universal/Network/IScsiDxe/IScsiDhcp.c b/MdeModulePkg/Universal/Network/IScsiDxe/IScsiDhcp.c
index 996a290..c770e27 100644
--- a/MdeModulePkg/Universal/Network/IScsiDxe/IScsiDhcp.c
+++ b/MdeModulePkg/Universal/Network/IScsiDxe/IScsiDhcp.c
@@ -1,7 +1,7 @@
 /** @file

   iSCSI DHCP related configuration routines.

 

-Copyright (c) 2004 - 2009, Intel Corporation.<BR>

+Copyright (c) 2004 - 2010, Intel Corporation.<BR>

 All rights reserved. This program and the accompanying materials

 are licensed and made available under the terms and conditions of the BSD License

 which accompanies this distribution.  The full text of the license may be found at

@@ -344,7 +344,9 @@ IScsiParseDhcpAck (
 

   @retval EFI_SUCCESS           The DNS information is got from the DHCP ACK.

   @retval EFI_OUT_OF_RESOURCES  Failed to allocate memory.

+  @retval EFI_NO_MEDIA          There was a media error.

   @retval Others                Other errors as indicated.

+

 **/

 EFI_STATUS

 IScsiDoDhcp (

@@ -358,12 +360,22 @@ IScsiDoDhcp (
   EFI_STATUS              Status;

   EFI_DHCP4_PACKET_OPTION *ParaList;

   EFI_DHCP4_CONFIG_DATA   Dhcp4ConfigData;

+  BOOLEAN                 MediaPresent;

 

   Dhcp4Handle = NULL;

   Dhcp4       = NULL;

   ParaList    = NULL;

 

   //

+  // Check media status before do DHCP

+  //

+  MediaPresent = TRUE;

+  NetLibDetectMedia (Controller, &MediaPresent);

+  if (!MediaPresent) {

+    return EFI_NO_MEDIA;

+  }

+

+  //

   // Create a DHCP4 child instance and get the protocol.

   //

   Status = NetLibCreateServiceChild (

diff --git a/MdeModulePkg/Universal/Network/IScsiDxe/IScsiDhcp.h b/MdeModulePkg/Universal/Network/IScsiDxe/IScsiDhcp.h
index 07b30a9..eefc5b3 100644
--- a/MdeModulePkg/Universal/Network/IScsiDxe/IScsiDhcp.h
+++ b/MdeModulePkg/Universal/Network/IScsiDxe/IScsiDhcp.h
@@ -1,7 +1,7 @@
 /** @file

   The header file of IScsiDhcp.

 

-Copyright (c) 2004 - 2009, Intel Corporation.<BR>

+Copyright (c) 2004 - 2010, Intel Corporation.<BR>

 All rights reserved. This program and the accompanying materials

 are licensed and made available under the terms and conditions of the BSD License

 which accompanies this distribution.  The full text of the license may be found at

@@ -47,7 +47,9 @@ typedef struct _ISCSI_ROOT_PATH_FIELD {
 

   @retval EFI_SUCCESS           The DNS information is got from the DHCP ACK.

   @retval EFI_OUT_OF_RESOURCES  Failed to allocate memory.

+  @retval EFI_NO_MEDIA          There was a media error.

   @retval Others                Other errors as indicated.

+

 **/

 EFI_STATUS

 IScsiDoDhcp (

diff --git a/MdeModulePkg/Universal/Network/IScsiDxe/IScsiProto.c b/MdeModulePkg/Universal/Network/IScsiDxe/IScsiProto.c
index ac0d8d8..2261bc1 100644
--- a/MdeModulePkg/Universal/Network/IScsiDxe/IScsiProto.c
+++ b/MdeModulePkg/Universal/Network/IScsiDxe/IScsiProto.c
@@ -1,7 +1,7 @@
 /** @file

   The implementation of iSCSI protocol based on RFC3720.

 

-Copyright (c) 2004 - 2009, Intel Corporation.<BR>

+Copyright (c) 2004 - 2010, Intel Corporation.<BR>

 All rights reserved. This program and the accompanying materials

 are licensed and made available under the terms and conditions of the BSD License

 which accompanies this distribution.  The full text of the license may be found at

@@ -276,7 +276,9 @@ IScsiDestroyConnection (
 

   @retval EFI_SUCCESS          The iSCSI session login procedure finished.

   @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.

+  @retval EFI_NO_MEDIA         There was a media error.

   @retval Others               Other errors as indicated.

+

 **/

 EFI_STATUS

 IScsiSessionLogin (

@@ -287,10 +289,20 @@ IScsiSessionLogin (
   ISCSI_SESSION     *Session;

   ISCSI_CONNECTION  *Conn;

   EFI_TCP4_PROTOCOL *Tcp4;

+  BOOLEAN           MediaPresent;

 

   Session = &Private->Session;

 

   //

+  // Check media status before session login

+  //

+  MediaPresent = TRUE;

+  NetLibDetectMedia (Private->Controller, &MediaPresent);

+  if (!MediaPresent) {

+    return EFI_NO_MEDIA;

+  }

+

+  //

   // Create a connection for the session.

   //

   Conn = IScsiCreateConnection (Private, Session);

diff --git a/MdeModulePkg/Universal/Network/IScsiDxe/IScsiProto.h b/MdeModulePkg/Universal/Network/IScsiDxe/IScsiProto.h
index 93fe2af..e11565e 100644
--- a/MdeModulePkg/Universal/Network/IScsiDxe/IScsiProto.h
+++ b/MdeModulePkg/Universal/Network/IScsiDxe/IScsiProto.h
@@ -1,7 +1,7 @@
 /** @file

   The header file of iSCSI Protocol that defines many specific data structures.

 

-Copyright (c) 2004 - 2009, Intel Corporation.<BR>

+Copyright (c) 2004 - 2010, Intel Corporation.<BR>

 All rights reserved. This program and the accompanying materials

 are licensed and made available under the terms and conditions of the BSD License

 which accompanies this distribution.  The full text of the license may be found at

@@ -692,7 +692,9 @@ IScsiDestroyConnection (
 

   @retval EFI_SUCCESS          The iSCSI session login procedure finished.

   @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.

+  @retval EFI_NO_MEDIA         There was a media error.

   @retval Others               Other errors as indicated.

+

 **/

 EFI_STATUS

 IScsiSessionLogin (