• Vladislav Zolotarov's avatar
    bnx2x: Separated FW from the source. · 94a78b79
    Vladislav Zolotarov authored
    
    >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>
    94a78b79
bnx2x_fw_file_hdr.h 1.2 KB
/* 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 */