Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / ipxe / src / drivers / net / efi / snp.c

diff --git a/qemu/roms/ipxe/src/drivers/net/efi/snp.c b/qemu/roms/ipxe/src/drivers/net/efi/snp.c
new file mode 100644 (file)
index 0000000..2b5fc86
--- /dev/null
+++ b/qemu/roms/ipxe/src/drivers/net/efi/snp.c
@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) 2014 Michael Brown <mbrown@fensystems.co.uk>.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <errno.h>
+#include <ipxe/efi/efi.h>
+#include <ipxe/efi/efi_driver.h>
+#include <ipxe/efi/efi_snp.h>
+#include "snpnet.h"
+#include "nii.h"
+
+/** @file
+ *
+ * SNP driver
+ *
+ */
+
+/**
+ * Check to see if driver supports a device
+ *
+ * @v device           EFI device handle
+ * @ret rc             Return status code
+ */
+static int snp_supported ( EFI_HANDLE device ) {
+       EFI_BOOT_SERVICES *bs = efi_systab->BootServices;
+       EFI_STATUS efirc;
+
+       /* Check that this is not a device we are providing ourselves */
+       if ( find_snpdev ( device ) != NULL ) {
+               DBGCP ( device, "SNP %p %s is provided by this binary\n",
+                       device, efi_handle_name ( device ) );
+               return -ENOTTY;
+       }
+
+       /* Test for presence of simple network protocol */
+       if ( ( efirc = bs->OpenProtocol ( device,
+                                         &efi_simple_network_protocol_guid,
+                                         NULL, efi_image_handle, device,
+                                         EFI_OPEN_PROTOCOL_TEST_PROTOCOL))!=0){
+               DBGCP ( device, "SNP %p %s is not an SNP device\n",
+                       device, efi_handle_name ( device ) );
+               return -EEFI ( efirc );
+       }
+       DBGC ( device, "SNP %p %s is an SNP device\n",
+              device, efi_handle_name ( device ) );
+
+       return 0;
+}
+
+/**
+ * Check to see if driver supports a device
+ *
+ * @v device           EFI device handle
+ * @ret rc             Return status code
+ */
+static int nii_supported ( EFI_HANDLE device ) {
+       EFI_BOOT_SERVICES *bs = efi_systab->BootServices;
+       EFI_STATUS efirc;
+
+       /* Check that this is not a device we are providing ourselves */
+       if ( find_snpdev ( device ) != NULL ) {
+               DBGCP ( device, "NII %p %s is provided by this binary\n",
+                       device, efi_handle_name ( device ) );
+               return -ENOTTY;
+       }
+
+       /* Test for presence of NII protocol */
+       if ( ( efirc = bs->OpenProtocol ( device,
+                                         &efi_nii31_protocol_guid,
+                                         NULL, efi_image_handle, device,
+                                         EFI_OPEN_PROTOCOL_TEST_PROTOCOL))!=0){
+               DBGCP ( device, "NII %p %s is not an NII device\n",
+                       device, efi_handle_name ( device ) );
+               return -EEFI ( efirc );
+       }
+       DBGC ( device, "NII %p %s is an NII device\n",
+              device, efi_handle_name ( device ) );
+
+       return 0;
+}
+
+/** EFI SNP driver */
+struct efi_driver snp_driver __efi_driver ( EFI_DRIVER_NORMAL ) = {
+       .name = "SNP",
+       .supported = snp_supported,
+       .start = snpnet_start,
+       .stop = snpnet_stop,
+};
+
+/** EFI NII driver */
+struct efi_driver nii_driver __efi_driver ( EFI_DRIVER_NORMAL ) = {
+       .name = "NII",
+       .supported = nii_supported,
+       .start = nii_start,
+       .stop = nii_stop,
+};