Support SCSI storage

HyperV only support SCSI storage.
To run on HyperV, SCSI storage must be supported

Tracked-On: OAM-92157
Signed-off-by: JianFeng,Zhou <jianfeng.zhou@intel.com>

Author: zhouji3x

include/storage.h

@@ -43,6 +43,7 @@ enum storage_type {
 	STORAGE_SATA,
 	STORAGE_NVME,
 	STORAGE_VIRTUAL,
+	STORAGE_ISCSI,
 #ifdef USB_STORAGE
 	STORAGE_USB,
 #endif
@@ -94,4 +95,6 @@ EFI_STATUS set_logical_unit(UINT64 user_lun, UINT64 factory_lun);
 void print_progress(EFI_LBA done, EFI_LBA total, uint32_t sec, uint32_t *prev_sec, uint32_t *prev);
 void set_exclude_device(EFI_HANDLE device);
 
+SCSI_DEVICE_PATH* get_scsi_device_path(EFI_DEVICE_PATH *p);
+
 #endif	/* _STORAGE_H_ */

libfastboot/fastboot_oem.c

@@ -338,6 +338,10 @@ static void cmd_oem_set_storage(INTN argc, CHAR8 **argv)
 			types[total_types++] = STORAGE_NVME;
 			continue;
 		}
+		if (!strcmp(argv[i], (CHAR8 *)"iscsi")) {
+			types[total_types++] = STORAGE_ISCSI;
+			continue;
+		}
 		if (!strcmp(argv[i], (CHAR8 *)"sdcard")) {
 			types[total_types++] = STORAGE_SDCARD;
 			continue;

libkernelflinger/Android.mk

@@ -123,6 +123,7 @@ LOCAL_SRC_FILES := \
 	qsort.c \
 	timer.c \
 	nvme.c \
+	iscsi.c \
 	virtual_media.c \
 	general_block.c \
 	aes_gcm.c \

libkernelflinger/android.c

@@ -1063,17 +1063,27 @@ static EFI_STATUS setup_command_line(
         PCI_DEVICE_PATH *boot_device = get_boot_device();
         if (boot_device) {
                 CHAR16 *diskbus = NULL;
+                enum storage_type storage_type;
 #ifdef AUTO_DISKBUS
                 diskbus = PoolPrint(L"%02x.%x", boot_device->Device, boot_device->Function);
 #else
                 diskbus = PoolPrint(L"%a", (CHAR8 *)PREDEF_DISK_BUS);
 #endif
                 StrToLower(diskbus);
-                ret = prepend_command_line(&cmdline16,
-                                           (aosp_header->header_version < 2)
-                                           ? L"androidboot.diskbus=%s"
-                                           : L"androidboot.boot_devices=pci0000:00/0000:00:%s",
-                                           diskbus);
+
+                get_boot_device_type(&storage_type);
+                if(aosp_header->header_version < 2)
+                    ret = prepend_command_line(&cmdline16,
+                                        L"androidboot.diskbus=%s",
+                                        diskbus);
+                else
+                if(storage_type == STORAGE_ISCSI)
+                    ret = prepend_command_line(&cmdline16,
+                                   L"androidboot.boot_devices=scsi_disk/0:0:0:0");
+                else
+                    ret = prepend_command_line(&cmdline16,
+                                   L"androidboot.boot_devices=pci0000:00/0000:00:%s",
+                                   diskbus);
                 FreePool(diskbus);
                 if (EFI_ERROR(ret))
                         goto out;

libkernelflinger/iscsi.c

@@ -0,0 +1,100 @@
+/*
+ * Copyright (c) 2020, Intel Corporation
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *    * Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *    * Redistributions in binary form must reproduce the above copyright
+ *      notice, this list of conditions and the following disclaimer
+ *      in the documentation and/or other materials provided with the
+ *      distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This file defines bootlogic data structures, try to keep it without
+ * any external definitions in order to ease export of it.
+ */
+
+#include <lib.h>
+#include "storage.h"
+
+#include "protocol/NvmExpressHci.h"
+#include "protocol/DevicePath.h"
+#include "protocol/NvmExpressPassthru.h"
+
+#define ATTR_UNUSED __attribute__((unused))
+
+#define MSG_SCSI_DP               0x02
+
+#include "pci.h"
+
+#if 0
+static void *get_iscsi_device_path(EFI_DEVICE_PATH *p)
+{
+	for (; !IsDevicePathEndType(p); p = NextDevicePathNode(p)) {
+		if (DevicePathType(p) == MESSAGING_DEVICE_PATH
+		   && DevicePathSubType(p) == MSG_SCSI_DP)
+			return (void *)p;
+	}
+
+	return NULL;
+}
+#endif
+
+SCSI_DEVICE_PATH* get_scsi_device_path(EFI_DEVICE_PATH *p)
+{
+	if (!p)
+		return NULL;
+
+	while (!IsDevicePathEndType(p)) {
+		if (DevicePathType(p) == MESSAGING_DEVICE_PATH
+		    && DevicePathSubType(p) == MSG_SCSI_DP)
+			return (SCSI_DEVICE_PATH *)p;
+		p = NextDevicePathNode(p);
+	}
+	return NULL;
+}
+
+static EFI_STATUS iscsi_erase_blocks(
+	EFI_HANDLE handle ATTR_UNUSED,
+	EFI_BLOCK_IO *bio ATTR_UNUSED,
+	EFI_LBA start ATTR_UNUSED,
+	EFI_LBA end ATTR_UNUSED
+)
+{
+	return EFI_UNSUPPORTED;
+}
+
+static EFI_STATUS iscsi_check_logical_unit(ATTR_UNUSED EFI_DEVICE_PATH *p, ATTR_UNUSED logical_unit_t log_unit)
+{
+	return log_unit == LOGICAL_UNIT_USER ? EFI_SUCCESS : EFI_UNSUPPORTED;
+}
+
+static BOOLEAN is_iscsi(EFI_DEVICE_PATH *p)
+{
+	return get_scsi_device_path(p) != NULL;
+}
+
+struct storage STORAGE(STORAGE_ISCSI) = {
+	.erase_blocks = iscsi_erase_blocks,
+	.check_logical_unit = iscsi_check_logical_unit,
+	.probe = is_iscsi,
+	.name = L"ISCSI"
+};
+
+