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

1 files changed, 39 insertions, 5 deletions

diff --git a/MdeModulePkg/Include/Library/NetLib.h b/MdeModulePkg/Include/Library/NetLib.h
index 3a3b1901f6..854aa0fee0 100644
--- a/MdeModulePkg/Include/Library/NetLib.h
+++ b/MdeModulePkg/Include/Library/NetLib.h
@@ -1093,6 +1093,40 @@ NetLibGetMacString (
   );

 

 /**

+  Detect media status for specified network device.

+

+  The underlying UNDI driver may or may not support reporting media status from

+  GET_STATUS command (PXE_STATFLAGS_GET_STATUS_NO_MEDIA_SUPPORTED). This routine

+  will try to invoke Snp->GetStatus() to get the media status: if media already

+  present, it return directly; if media not present, it will stop SNP and then

+  restart SNP to get the latest media status, this give chance to get the correct

+  media status for old UNDI driver which doesn't support reporting media status

+  from GET_STATUS command.

+  Note: there will be two limitations for current algorithm:

+  1) for UNDI with this capability, in case of cable is not attached, there will

+     be an redundant Stop/Start() process;

+  2) for UNDI without this capability, in case cable is attached in UNDI

+     initialize while unattached latter, NetLibDetectMedia() will report

+     MediaPresent as TRUE, this cause upper layer apps wait for timeout time.

+

+  @param[in]   ServiceHandle    The handle where network service binding protocols are

+                                installed on.

+  @param[out]  MediaPresent     The pointer to store the media status.

+

+  @retval EFI_SUCCESS           Media detection success.

+  @retval EFI_INVALID_PARAMETER ServiceHandle is not valid network device handle.

+  @retval EFI_UNSUPPORTED       Network device does not support media detection.

+  @retval EFI_DEVICE_ERROR      SNP is in unknown state.

+

+**/

+EFI_STATUS

+EFIAPI

+NetLibDetectMedia (

+  IN  EFI_HANDLE            ServiceHandle,

+  OUT BOOLEAN               *MediaPresent

+  );

+

+/**

   Create an IPv4 device path node.

 

   The header type of IPv4 device path node is MESSAGING_DEVICE_PATH.

@@ -1201,7 +1235,7 @@ NetLibDefaultUnload (
   @param[in]      String         The pointer to the Ascii string.

   @param[out]     Ip4Address     The pointer to the converted IPv4 address.

 

-  @retval EFI_SUCCESS            Convert to IPv4 address successfully.  

+  @retval EFI_SUCCESS            Convert to IPv4 address successfully.

   @retval EFI_INVALID_PARAMETER  The string is mal-formated or Ip4Address is NULL.

 

 **/

@@ -1218,7 +1252,7 @@ NetLibAsciiStrToIp4 (
   @param[in]      String         The pointer to the Ascii string.

   @param[out]     Ip6Address     The pointer to the converted IPv6 address.

 

-  @retval EFI_SUCCESS            Convert to IPv6 address successfully.  

+  @retval EFI_SUCCESS            Convert to IPv6 address successfully.

   @retval EFI_INVALID_PARAMETER  The string is mal-formated or Ip6Address is NULL.

 

 **/

@@ -1234,7 +1268,7 @@ NetLibAsciiStrToIp6 (
   @param[in]      String         The pointer to the Ascii string.

   @param[out]     Ip4Address     The pointer to the converted IPv4 address.

 

-  @retval EFI_SUCCESS            Convert to IPv4 address successfully.  

+  @retval EFI_SUCCESS            Convert to IPv4 address successfully.

   @retval EFI_INVALID_PARAMETER  The string is mal-formated or Ip4Address is NULL.

   @retval EFI_OUT_OF_RESOURCES   Fail to perform the operation due to lack of resource.

 

@@ -1252,7 +1286,7 @@ NetLibStrToIp4 (
   @param[in]      String         The pointer to the Ascii string.

   @param[out]     Ip6Address     The pointer to the converted IPv6 address.

 

-  @retval EFI_SUCCESS            Convert to IPv6 address successfully.  

+  @retval EFI_SUCCESS            Convert to IPv6 address successfully.

   @retval EFI_INVALID_PARAMETER  The string is mal-formated or Ip6Address is NULL.

   @retval EFI_OUT_OF_RESOURCES   Fail to perform the operation due to lack of resource.

 

@@ -1272,7 +1306,7 @@ NetLibStrToIp6 (
   @param[out]     Ip6Address     The pointer to the converted IPv6 address.

   @param[out]     PrefixLength   The pointer to the converted prefix length.

 

-  @retval EFI_SUCCESS            Convert to IPv6 address successfully.  

+  @retval EFI_SUCCESS            Convert to IPv6 address successfully.

   @retval EFI_INVALID_PARAMETER  The string is mal-formated or Ip6Address is NULL.

   @retval EFI_OUT_OF_RESOURCES   Fail to perform the operation due to lack of resource.