91c1953de3
Use zlib deflate to compress firmware dump. Collect and compress as much firmware dump as possible into a 32 MB buffer. Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> Signed-off-by: Vishal Kulkarni <vishal@chelsio.com> Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
57 lines
1.5 KiB
C
57 lines
1.5 KiB
C
/*
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* Copyright (C) 2018 Chelsio Communications. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* The full GNU General Public License is included in this distribution in
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* the file called "COPYING".
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*
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*/
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#ifndef __CUDBG_ZLIB_H__
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#define __CUDBG_ZLIB_H__
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#include <linux/zlib.h>
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#define CUDBG_ZLIB_COMPRESS_ID 17
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#define CUDBG_ZLIB_WIN_BITS 12
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#define CUDBG_ZLIB_MEM_LVL 4
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struct cudbg_compress_hdr {
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u32 compress_id;
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u64 decompress_size;
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u64 compress_size;
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u64 rsvd[32];
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};
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static inline int cudbg_get_workspace_size(void)
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{
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#ifdef CONFIG_ZLIB_DEFLATE
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return zlib_deflate_workspacesize(CUDBG_ZLIB_WIN_BITS,
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CUDBG_ZLIB_MEM_LVL);
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#else
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return 0;
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#endif /* CONFIG_ZLIB_DEFLATE */
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}
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#ifndef CONFIG_ZLIB_DEFLATE
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static inline int cudbg_compress_buff(struct cudbg_init *pdbg_init,
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struct cudbg_buffer *pin_buff,
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struct cudbg_buffer *pout_buff)
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{
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return 0;
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}
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#else
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int cudbg_compress_buff(struct cudbg_init *pdbg_init,
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struct cudbg_buffer *pin_buff,
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struct cudbg_buffer *pout_buff);
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#endif /* CONFIG_ZLIB_DEFLATE */
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#endif /* __CUDBG_ZLIB_H__ */
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