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| author | Laszlo Ersek <lersek@redhat.com> | 2013-06-14 07:40:05 +0000 |
|---|---|---|
| committer | jljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524> | 2013-06-14 07:40:05 +0000 |
| commit | 12384f9b2657946052fab05cbe86d147124c71bf (patch) | |
| tree | c0c96c086882afe6f53d7e6a53df18a9437770e5 /OvmfPkg/VirtioNetDxe/SnpSharedHelpers.c | |
| parent | 395e912e7268ae5c26aee662b23209211d7a2f2f (diff) | |
| download | edk2-platforms-12384f9b2657946052fab05cbe86d147124c71bf.tar.xz | |
OvmfPkg: VirtioNetDxe: add SNP.Initialize and shared dependencies
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14410 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'OvmfPkg/VirtioNetDxe/SnpSharedHelpers.c')
| -rw-r--r-- | OvmfPkg/VirtioNetDxe/SnpSharedHelpers.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/OvmfPkg/VirtioNetDxe/SnpSharedHelpers.c b/OvmfPkg/VirtioNetDxe/SnpSharedHelpers.c new file mode 100644 index 0000000000..9fedb72fdb --- /dev/null +++ b/OvmfPkg/VirtioNetDxe/SnpSharedHelpers.c @@ -0,0 +1,53 @@ +/** @file
+
+ Helper functions used by at least two Simple Network Protocol methods.
+
+ Copyright (C) 2013, Red Hat, Inc.
+
+ 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
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT
+ WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <Library/MemoryAllocationLib.h>
+
+#include "VirtioNet.h"
+
+/**
+ Release RX and TX resources on the boundary of the
+ EfiSimpleNetworkInitialized state.
+
+ These functions contribute to rolling back a partial, failed initialization
+ of the virtio-net SNP driver instance, or to shutting down a fully
+ initialized, running instance.
+
+ They are only callable by the VirtioNetInitialize() and the
+ VirtioNetShutdown() SNP methods. See the state diagram in "VirtioNet.h".
+
+ @param[in,out] Dev The VNET_DEV driver instance being shut down, or whose
+ partial, failed initialization is being rolled back.
+*/
+
+VOID
+EFIAPI
+VirtioNetShutdownRx (
+ IN OUT VNET_DEV *Dev
+ )
+{
+ FreePool (Dev->RxBuf);
+}
+
+
+VOID
+EFIAPI
+VirtioNetShutdownTx (
+ IN OUT VNET_DEV *Dev
+ )
+{
+ FreePool (Dev->TxFreeStack);
+}
|