Commit 94a78b79 authored by Vladislav Zolotarov's avatar Vladislav Zolotarov Committed by David S. Miller
Browse files

bnx2x: Separated FW from the source. 



>From now on FW will be downloaded from the binary file using request_firmware.

There will be different files for every supported chip. Currently 57710 (e1) and
57711 (e1h).

File names have the following format: bnx2x-<chip version>-<FW version>.fw.
ihex versions of current FW files are submitted in the next patch.

Each binary file has a header in the following format:


struct bnx2x_fw_file_section {
	__be32 len;
	__be32 offset;
}

struct bnx2x_fw_file_hdr {
	struct bnx2x_fw_file_section init_ops;
	struct bnx2x_fw_file_section init_ops_offsets;
	struct bnx2x_fw_file_section init_data;
	struct bnx2x_fw_file_section tsem_int_table_data;
	struct bnx2x_fw_file_section tsem_pram_data;
	struct bnx2x_fw_file_section usem_int_table_data;
	struct bnx2x_fw_file_section usem_pram_data;
	struct bnx2x_fw_file_section csem_int_table_data;
	struct bnx2x_fw_file_section csem_pram_data;
	struct bnx2x_fw_file_section xsem_int_table_data;
	struct bnx2x_fw_file_section xsem_pram_data;
	struct bnx2x_fw_file_section fw_version;
}

Each bnx2x_fw_file_section contains the length and the offset of the appropriate
section in the binary file. Values are stored in the big endian format.

Data types of arrays:

init_data            __be32
init_ops_offsets     __be16
XXsem_pram_data         u8
XXsem_int_table_data    u8
init_ops             struct raw_op {
                          u8   op;
			__be24 offset;
                        __be32 data;
		     }
fw_version              u8

>From now boundaries of a specific initialization stage are stored in
init_ops_offsets array instead of being defined by separate macroes. The index 
in init_ops_offsets is calculated by BLOCK_OPS_IDX macro:

#define BLOCK_OPS_IDX(block, stage, end) \
       (2*(((block)*STAGE_IDX_MAX) + (stage)) + (end))

Security:

In addition to sanity check of array boundaries bnx2x will check a FW version.
Additional checks might be added in the future.

Signed-off-by: default avatarVladislav Zolotarov <vladz@broadcom.com>
Signed-off-by: default avatarEilon Greenstein <eilong@broadcom.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent ec9323f4

drivers/net/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -2676,6 +2676,7 @@ config TEHUTI 
config BNX2X

	tristate "Broadcom NetXtremeII 10Gb support"

	depends on PCI

	select FW_LOADER

	select ZLIB_INFLATE

	select LIBCRC32C

	help

drivers/net/bnx2x.h

+15 −0
Original line number Diff line number Diff line
@@ -965,6 +965,21 @@ struct bnx2x { 
	int			gunzip_outlen;

#define FW_BUF_SIZE			0x8000



	struct raw_op          *init_ops;

	/* Init blocks offsets inside init_ops */

	u16                    *init_ops_offsets;

	/* Data blob - has 32 bit granularity */

	u32                    *init_data;

	/* Zipped PRAM blobs - raw data */

	const u8               *tsem_int_table_data;

	const u8               *tsem_pram_data;

	const u8               *usem_int_table_data;

	const u8               *usem_pram_data;

	const u8               *xsem_int_table_data;

	const u8               *xsem_pram_data;

	const u8               *csem_int_table_data;

	const u8               *csem_pram_data;

        const struct firmware  *firmware;

};

drivers/net/bnx2x_fw_file_hdr.h

0 → 100644
+37 −0
Original line number Diff line number Diff line 
/* bnx2x_fw_file_hdr.h: FW binary file header structure.

 *

 * Copyright (c) 2007-2009 Broadcom Corporation

 *

 * 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.

 *

 * Maintained by: Eilon Greenstein <eilong@broadcom.com>

 * Written by: Vladislav Zolotarov <vladz@broadcom.com>

 * Based on the original idea of John Wright <john.wright@hp.com>.

 */



#ifndef BNX2X_INIT_FILE_HDR_H

#define BNX2X_INIT_FILE_HDR_H



struct bnx2x_fw_file_section {

	__be32 len;

	__be32 offset;

};



struct bnx2x_fw_file_hdr {

	struct bnx2x_fw_file_section init_ops;

	struct bnx2x_fw_file_section init_ops_offsets;

	struct bnx2x_fw_file_section init_data;

	struct bnx2x_fw_file_section tsem_int_table_data;

	struct bnx2x_fw_file_section tsem_pram_data;

	struct bnx2x_fw_file_section usem_int_table_data;

	struct bnx2x_fw_file_section usem_pram_data;

	struct bnx2x_fw_file_section csem_int_table_data;

	struct bnx2x_fw_file_section csem_pram_data;

	struct bnx2x_fw_file_section xsem_int_table_data;

	struct bnx2x_fw_file_section xsem_pram_data;

	struct bnx2x_fw_file_section fw_version;

};



#endif /* BNX2X_INIT_FILE_HDR_H */

drivers/net/bnx2x_init.h

+69 −536

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drivers/net/bnx2x_init_ops.h

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+442 −0

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