/** @file
Implementation of the SNP.Start() function and its private helpers if any.
Copyright (c) 2021, Oracle and/or its affiliates.
Copyright (C) 2013, Red Hat, Inc.
Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include
#include "E1kNet.h"
/**
Changes the state of a network interface from "stopped" to "started".
@param This Protocol instance pointer.
@retval EFI_SUCCESS The network interface was started.
@retval EFI_ALREADY_STARTED The network interface is already in the started
state.
@retval EFI_INVALID_PARAMETER One or more of the parameters has an
unsupported value.
@retval EFI_DEVICE_ERROR The command could not be sent to the network
interface.
@retval EFI_UNSUPPORTED This function is not supported by the network
interface.
**/
EFI_STATUS
EFIAPI
E1kNetStart (
IN EFI_SIMPLE_NETWORK_PROTOCOL *This
)
{
E1K_NET_DEV *Dev;
EFI_TPL OldTpl;
EFI_STATUS Status;
if (This == NULL) {
return EFI_INVALID_PARAMETER;
}
Dev = E1K_NET_FROM_SNP (This);
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
if (Dev->Snm.State != EfiSimpleNetworkStopped) {
Status = EFI_ALREADY_STARTED;
}
else {
Dev->Snm.State = EfiSimpleNetworkStarted;
Status = EFI_SUCCESS;
}
gBS->RestoreTPL (OldTpl);
return Status;
}