From f215e02bf85f68d3a6106c2a1f4f7f063f819064 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Thu, 11 Apr 2024 10:17:27 +0200
Subject: Adding upstream version 7.0.14-dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../Devices/EFI/Firmware/NetworkPkg/SnpDxe/Start.c | 162 +++++++++++++++++++++
 1 file changed, 162 insertions(+)
 create mode 100644 src/VBox/Devices/EFI/Firmware/NetworkPkg/SnpDxe/Start.c

(limited to 'src/VBox/Devices/EFI/Firmware/NetworkPkg/SnpDxe/Start.c')

diff --git a/src/VBox/Devices/EFI/Firmware/NetworkPkg/SnpDxe/Start.c b/src/VBox/Devices/EFI/Firmware/NetworkPkg/SnpDxe/Start.c
new file mode 100644
index 00000000..6a14824b
--- /dev/null
+++ b/src/VBox/Devices/EFI/Firmware/NetworkPkg/SnpDxe/Start.c
@@ -0,0 +1,162 @@
+/** @file
+    Implementation of starting a network adapter.
+
+Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "Snp.h"
+
+
+/**
+  Call UNDI to start the interface and changes the snp state.
+
+  @param  Snp                    pointer to snp driver structure.
+
+  @retval EFI_SUCCESS            UNDI is started successfully.
+  @retval EFI_DEVICE_ERROR       UNDI could not be started.
+
+**/
+EFI_STATUS
+PxeStart (
+  IN SNP_DRIVER *Snp
+  )
+{
+  PXE_CPB_START_31  *Cpb31;
+
+  Cpb31  = Snp->Cpb;
+  //
+  // Initialize UNDI Start CDB for H/W UNDI
+  //
+  Snp->Cdb.OpCode     = PXE_OPCODE_START;
+  Snp->Cdb.OpFlags    = PXE_OPFLAGS_NOT_USED;
+  Snp->Cdb.CPBsize    = PXE_CPBSIZE_NOT_USED;
+  Snp->Cdb.DBsize     = PXE_DBSIZE_NOT_USED;
+  Snp->Cdb.CPBaddr    = PXE_CPBADDR_NOT_USED;
+  Snp->Cdb.DBaddr     = PXE_DBADDR_NOT_USED;
+  Snp->Cdb.StatCode   = PXE_STATCODE_INITIALIZE;
+  Snp->Cdb.StatFlags  = PXE_STATFLAGS_INITIALIZE;
+  Snp->Cdb.IFnum      = Snp->IfNum;
+  Snp->Cdb.Control    = PXE_CONTROL_LAST_CDB_IN_LIST;
+
+  //
+  // Make changes to H/W UNDI Start CDB if this is
+  // a S/W UNDI.
+  //
+  if (Snp->IsSwUndi) {
+    Snp->Cdb.CPBsize  = (UINT16) sizeof (PXE_CPB_START_31);
+    Snp->Cdb.CPBaddr  = (UINT64)(UINTN) Cpb31;
+
+    Cpb31->Delay     = (UINT64)(UINTN) &SnpUndi32CallbackDelay;
+    Cpb31->Block     = (UINT64)(UINTN) &SnpUndi32CallbackBlock;
+
+    //
+    // Virtual == Physical.  This can be set to zero.
+    //
+    Cpb31->Virt2Phys = (UINT64)(UINTN) 0;
+    Cpb31->Mem_IO    = (UINT64)(UINTN) &SnpUndi32CallbackMemio;
+
+    Cpb31->Map_Mem   = (UINT64)(UINTN) &SnpUndi32CallbackMap;
+    Cpb31->UnMap_Mem = (UINT64)(UINTN) &SnpUndi32CallbackUnmap;
+    Cpb31->Sync_Mem  = (UINT64)(UINTN) &SnpUndi32CallbackSync;
+
+    Cpb31->Unique_ID = (UINT64)(UINTN) Snp;
+  }
+  //
+  // Issue UNDI command and check result.
+  //
+  DEBUG ((EFI_D_NET, "\nsnp->undi.start()  "));
+
+  (*Snp->IssueUndi32Command) ((UINT64)(UINTN) &Snp->Cdb);
+
+  if (Snp->Cdb.StatCode != PXE_STATCODE_SUCCESS) {
+    //
+    // UNDI could not be started. Return UNDI error.
+    //
+    DEBUG (
+      (EFI_D_ERROR,
+      "\nsnp->undi.start()  %xh:%xh\n",
+      Snp->Cdb.StatCode,
+      Snp->Cdb.StatFlags)
+      );
+
+    return EFI_DEVICE_ERROR;
+  }
+  //
+  // Set simple network state to Started and return success.
+  //
+  Snp->Mode.State = EfiSimpleNetworkStarted;
+
+  return EFI_SUCCESS;
+}
+
+
+/**
+  Change the state of a network interface from "stopped" to "started."
+
+  This function starts a network interface. If the network interface successfully
+  starts, then EFI_SUCCESS will be returned.
+
+  @param  This                   A pointer to the EFI_SIMPLE_NETWORK_PROTOCOL instance.
+
+  @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  This parameter was NULL or did not point to a valid
+                                 EFI_SIMPLE_NETWORK_PROTOCOL structure.
+  @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
+SnpUndi32Start (
+  IN EFI_SIMPLE_NETWORK_PROTOCOL *This
+  )
+{
+  SNP_DRIVER  *Snp;
+  EFI_STATUS  Status;
+  UINTN       Index;
+  EFI_TPL     OldTpl;
+
+  if (This == NULL) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  Snp = EFI_SIMPLE_NETWORK_DEV_FROM_THIS (This);
+
+  OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
+
+  switch (Snp->Mode.State) {
+  case EfiSimpleNetworkStopped:
+    break;
+
+  case EfiSimpleNetworkStarted:
+  case EfiSimpleNetworkInitialized:
+    Status = EFI_ALREADY_STARTED;
+    goto ON_EXIT;
+
+  default:
+    Status = EFI_DEVICE_ERROR;
+    goto ON_EXIT;
+  }
+
+  Status = PxeStart (Snp);
+  if (EFI_ERROR (Status)) {
+    goto ON_EXIT;
+  }
+  //
+  // clear the map_list in SNP structure
+  //
+  for (Index = 0; Index < MAX_MAP_LENGTH; Index++) {
+    Snp->MapList[Index].VirtualAddress = 0;
+    Snp->MapList[Index].MapCookie      = 0;
+  }
+
+  Snp->Mode.MCastFilterCount = 0;
+
+ON_EXIT:
+  gBS->RestoreTPL (OldTpl);
+
+  return Status;
+}
-- 
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