Differential D39795 Diff 120980 sys/dev/jedec_dimm/jedec_dimm.h

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sys/dev/jedec_dimm/jedec_dimm.h

	/*-			/*-
	* SPDX-License-Identifier: BSD-2-Clause-FreeBSD			* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
	*			*
	* Authors: Ravi Pokala (rpokala@freebsd.org)			* Authors: Ravi Pokala (rpokala@freebsd.org)
	*			*
	* Copyright (c) 2018 Panasas			* Copyright (c) 2018,2023 Panasas
				impUnsubmitted Done Inline Actions typically we'd use a '-' here rather than a ',' since ranges of copyright years are all that are really needed.... Unless your IP department insists on the comma, please consider changing. imp: typically we'd use a '-' here rather than a ',' since ranges of copyright years are all that…
	*			*
	* Redistribution and use in source and binary forms, with or without			* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions			* modification, are permitted provided that the following conditions
	* are met:			* are met:
	* 1. Redistributions of source code must retain the above copyright			* 1. Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.			* notice, this list of conditions and the following disclaimer.
	* 2. Redistributions in binary form must reproduce the above copyright			* 2. Redistributions in binary form must reproduce the above copyright
	* notice, this list of conditions and the following disclaimer in the			* notice, this list of conditions and the following disclaimer in the
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	* calculate the DIMM capacity.			* calculate the DIMM capacity.
	*/			*/
	#define SPD_OFFSET_DRAM_TYPE 2			#define SPD_OFFSET_DRAM_TYPE 2
	#define SPD_OFFSET_DDR3_SDRAM_CAPACITY 4			#define SPD_OFFSET_DDR3_SDRAM_CAPACITY 4
	#define SPD_OFFSET_DDR3_DIMM_RANKS 7			#define SPD_OFFSET_DDR3_DIMM_RANKS 7
	#define SPD_OFFSET_DDR3_SDRAM_WIDTH 7			#define SPD_OFFSET_DDR3_SDRAM_WIDTH 7
	#define SPD_OFFSET_DDR3_BUS_WIDTH 8			#define SPD_OFFSET_DDR3_BUS_WIDTH 8
	#define SPD_OFFSET_DDR3_TSOD_PRESENT 32			#define SPD_OFFSET_DDR3_TSOD_PRESENT 32
				#define SPD_OFFSET_DDR3_MOD_MFG_YEAR 120
				#define SPD_OFFSET_DDR3_MOD_MFG_WEEK 121
	#define SPD_OFFSET_DDR3_SERIAL 122			#define SPD_OFFSET_DDR3_SERIAL 122
	#define SPD_LEN_DDR3_SERIAL 4			#define SPD_LEN_DDR3_SERIAL 4
	#define SPD_OFFSET_DDR3_PARTNUM 128			#define SPD_OFFSET_DDR3_PARTNUM 128
	#define SPD_LEN_DDR3_PARTNUM 18			#define SPD_LEN_DDR3_PARTNUM 18
	#define SPD_OFFSET_DDR4_SDRAM_CAPACITY 4			#define SPD_OFFSET_DDR4_SDRAM_CAPACITY 4
	#define SPD_OFFSET_DDR4_SDRAM_PKG_TYPE 6			#define SPD_OFFSET_DDR4_SDRAM_PKG_TYPE 6
	#define SPD_OFFSET_DDR4_DIMM_RANKS 12			#define SPD_OFFSET_DDR4_DIMM_RANKS 12
	#define SPD_OFFSET_DDR4_SDRAM_WIDTH 12			#define SPD_OFFSET_DDR4_SDRAM_WIDTH 12
	#define SPD_OFFSET_DDR4_BUS_WIDTH 13			#define SPD_OFFSET_DDR4_BUS_WIDTH 13
	#define SPD_OFFSET_DDR4_TSOD_PRESENT 14			#define SPD_OFFSET_DDR4_TSOD_PRESENT 14
				#define SPD_OFFSET_DDR4_MOD_MFG_YEAR 323
				#define SPD_OFFSET_DDR4_MOD_MFG_WEEK 324
	#define SPD_OFFSET_DDR4_SERIAL 325			#define SPD_OFFSET_DDR4_SERIAL 325
	#define SPD_LEN_DDR4_SERIAL 4			#define SPD_LEN_DDR4_SERIAL 4
	#define SPD_OFFSET_DDR4_PARTNUM 329			#define SPD_OFFSET_DDR4_PARTNUM 329
	#define SPD_LEN_DDR4_PARTNUM 20			#define SPD_LEN_DDR4_PARTNUM 20

	/* The "DRAM Type" field of the SPD enumerates various memory technologies which			/* The "DRAM Type" field of the SPD enumerates various memory technologies which
	* have been used over the years. The list is append-only, so we need only refer			* have been used over the years. The list is append-only, so we need only refer
	* to the latest SPD specification. In this case, Annex L for DDR4.			* to the latest SPD specification. In this case, Annex L for DDR4.
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