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/* SPDX-License-Identifier: GPL-2.0-only */
/****************************************************************************
* Driver for AMD network controllers and boards
* Copyright (C) 2025, Advanced Micro Devices, Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation, incorporated herein by reference.
*/
#ifndef _EFX_FW_FORMATS_H
#define _EFX_FW_FORMATS_H
/* Header layouts of firmware update images recognised by Efx NICs.
* The sources-of-truth for these layouts are AMD internal documents
* and sfregistry headers, neither of which are available externally
* nor usable directly by the driver.
*
* While each format includes a 'magic number', these are at different
* offsets in the various formats, and a legal header for one format
* could have the right value in whichever field occupies that offset
* to match another format's magic.
* Besides, some packaging formats (such as CMS/PKCS#7 signed images)
* prepend a header for which finding the size is a non-trivial task;
* rather than trying to parse those headers, we search byte-by-byte
* through the provided firmware image looking for a valid header.
* Thus, format recognition has to include validation of the checksum
* field, even though the firmware will validate that itself before
* applying the image.
*/
/* EF10 (Medford2, X2) "reflash" header format. Defined in SF-121352-AN */
#define EFX_REFLASH_HEADER_MAGIC_OFST 0
#define EFX_REFLASH_HEADER_MAGIC_LEN 4
#define EFX_REFLASH_HEADER_MAGIC_VALUE 0x106F1A5
#define EFX_REFLASH_HEADER_VERSION_OFST 4
#define EFX_REFLASH_HEADER_VERSION_LEN 4
#define EFX_REFLASH_HEADER_VERSION_VALUE 4
#define EFX_REFLASH_HEADER_FIRMWARE_TYPE_OFST 8
#define EFX_REFLASH_HEADER_FIRMWARE_TYPE_LEN 4
#define EFX_REFLASH_FIRMWARE_TYPE_BOOTROM 0x2
#define EFX_REFLASH_FIRMWARE_TYPE_BUNDLE 0xd
#define EFX_REFLASH_HEADER_FIRMWARE_SUBTYPE_OFST 12
#define EFX_REFLASH_HEADER_FIRMWARE_SUBTYPE_LEN 4
#define EFX_REFLASH_HEADER_PAYLOAD_SIZE_OFST 16
#define EFX_REFLASH_HEADER_PAYLOAD_SIZE_LEN 4
#define EFX_REFLASH_HEADER_LENGTH_OFST 20
#define EFX_REFLASH_HEADER_LENGTH_LEN 4
/* Reflash trailer */
#define EFX_REFLASH_TRAILER_CRC_OFST 0
#define EFX_REFLASH_TRAILER_CRC_LEN 4
#define EFX_REFLASH_TRAILER_LEN \
(EFX_REFLASH_TRAILER_CRC_OFST + EFX_REFLASH_TRAILER_CRC_LEN)
/* EF100 "SmartNIC image" header format.
* Defined in sfregistry "src/layout/snic_image_hdr.h".
*/
#define EFX_SNICIMAGE_HEADER_MAGIC_OFST 16
#define EFX_SNICIMAGE_HEADER_MAGIC_LEN 4
#define EFX_SNICIMAGE_HEADER_MAGIC_VALUE 0x541C057A
#define EFX_SNICIMAGE_HEADER_VERSION_OFST 20
#define EFX_SNICIMAGE_HEADER_VERSION_LEN 4
#define EFX_SNICIMAGE_HEADER_VERSION_VALUE 1
#define EFX_SNICIMAGE_HEADER_LENGTH_OFST 24
#define EFX_SNICIMAGE_HEADER_LENGTH_LEN 4
#define EFX_SNICIMAGE_HEADER_PARTITION_TYPE_OFST 36
#define EFX_SNICIMAGE_HEADER_PARTITION_TYPE_LEN 4
#define EFX_SNICIMAGE_HEADER_PARTITION_SUBTYPE_OFST 40
#define EFX_SNICIMAGE_HEADER_PARTITION_SUBTYPE_LEN 4
#define EFX_SNICIMAGE_HEADER_PAYLOAD_SIZE_OFST 60
#define EFX_SNICIMAGE_HEADER_PAYLOAD_SIZE_LEN 4
#define EFX_SNICIMAGE_HEADER_CRC_OFST 64
#define EFX_SNICIMAGE_HEADER_CRC_LEN 4
#define EFX_SNICIMAGE_HEADER_MINLEN 256
/* EF100 "SmartNIC bundle" header format. Defined in SF-122606-TC */
#define EFX_SNICBUNDLE_HEADER_MAGIC_OFST 0
#define EFX_SNICBUNDLE_HEADER_MAGIC_LEN 4
#define EFX_SNICBUNDLE_HEADER_MAGIC_VALUE 0xB1001001
#define EFX_SNICBUNDLE_HEADER_VERSION_OFST 4
#define EFX_SNICBUNDLE_HEADER_VERSION_LEN 4
#define EFX_SNICBUNDLE_HEADER_VERSION_VALUE 1
#define EFX_SNICBUNDLE_HEADER_BUNDLE_TYPE_OFST 8
#define EFX_SNICBUNDLE_HEADER_BUNDLE_TYPE_LEN 4
#define EFX_SNICBUNDLE_HEADER_BUNDLE_SUBTYPE_OFST 12
#define EFX_SNICBUNDLE_HEADER_BUNDLE_SUBTYPE_LEN 4
#define EFX_SNICBUNDLE_HEADER_LENGTH_OFST 20
#define EFX_SNICBUNDLE_HEADER_LENGTH_LEN 4
#define EFX_SNICBUNDLE_HEADER_CRC_OFST 224
#define EFX_SNICBUNDLE_HEADER_CRC_LEN 4
#define EFX_SNICBUNDLE_HEADER_LEN \
(EFX_SNICBUNDLE_HEADER_CRC_OFST + EFX_SNICBUNDLE_HEADER_CRC_LEN)
#endif /* _EFX_FW_FORMATS_H */
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