69 lines
1.9 KiB
C
69 lines
1.9 KiB
C
/*
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* Copyright (C) 2017 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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#include "cxgb4.h"
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#include "cudbg_if.h"
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#include "cudbg_lib_common.h"
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int cudbg_get_buff(struct cudbg_init *pdbg_init,
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struct cudbg_buffer *pdbg_buff, u32 size,
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struct cudbg_buffer *pin_buff)
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{
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u32 offset;
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offset = pdbg_buff->offset;
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if (offset + size > pdbg_buff->size)
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return CUDBG_STATUS_NO_MEM;
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if (pdbg_init->compress_type != CUDBG_COMPRESSION_NONE) {
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if (size > pdbg_init->compress_buff_size)
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return CUDBG_STATUS_NO_MEM;
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pin_buff->data = (char *)pdbg_init->compress_buff;
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pin_buff->offset = 0;
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pin_buff->size = size;
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return 0;
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}
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pin_buff->data = (char *)pdbg_buff->data + offset;
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pin_buff->offset = offset;
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pin_buff->size = size;
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return 0;
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}
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void cudbg_put_buff(struct cudbg_init *pdbg_init,
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struct cudbg_buffer *pin_buff)
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{
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/* Clear compression buffer for re-use */
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if (pdbg_init->compress_type != CUDBG_COMPRESSION_NONE)
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memset(pdbg_init->compress_buff, 0,
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pdbg_init->compress_buff_size);
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pin_buff->data = NULL;
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pin_buff->offset = 0;
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pin_buff->size = 0;
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}
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void cudbg_update_buff(struct cudbg_buffer *pin_buff,
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struct cudbg_buffer *pout_buff)
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{
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/* We already write to buffer provided by ethool, so just
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* increment offset to next free space.
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*/
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pout_buff->offset += pin_buff->size;
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}
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