projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| a7975a2f RL |
1 | /* |
| 2 | * Copyright (C) 2017 Chelsio Communications. All rights reserved. | |
| 3 | * | |
| 4 | * This program is free software; you can redistribute it and/or modify it | |
| 5 | * under the terms and conditions of the GNU General Public License, | |
| 6 | * version 2, as published by the Free Software Foundation. | |
| 7 | * | |
| 8 | * This program is distributed in the hope it will be useful, but WITHOUT | |
| 9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
| 11 | * more details. | |
| 12 | * | |
| 13 | * The full GNU General Public License is included in this distribution in | |
| 14 | * the file called "COPYING". | |
| 15 | * | |
| 16 | */ | |
| 17 | ||
| 18 | #include "cxgb4.h" | |
| 19 | #include "cudbg_if.h" | |
| 20 | #include "cudbg_lib_common.h" | |
| 21 | ||
| 56cf2635 RL |
22 | int cudbg_get_buff(struct cudbg_init *pdbg_init, |
| 23 | struct cudbg_buffer *pdbg_buff, u32 size, | |
| a7975a2f RL |
24 | struct cudbg_buffer *pin_buff) |
| 25 | { | |
| 26 | u32 offset; | |
| 27 | ||
| 28 | offset = pdbg_buff->offset; | |
| 29 | if (offset + size > pdbg_buff->size) | |
| 30 | return CUDBG_STATUS_NO_MEM; | |
| 31 | ||
| 56cf2635 RL |
32 | if (pdbg_init->compress_type != CUDBG_COMPRESSION_NONE) { |
| 33 | if (size > pdbg_init->compress_buff_size) | |
| 34 | return CUDBG_STATUS_NO_MEM; | |
| 35 | ||
| 36 | pin_buff->data = (char *)pdbg_init->compress_buff; | |
| 37 | pin_buff->offset = 0; | |
| 38 | pin_buff->size = size; | |
| 39 | return 0; | |
| 40 | } | |
| 41 | ||
| a7975a2f RL |
42 | pin_buff->data = (char *)pdbg_buff->data + offset; |
| 43 | pin_buff->offset = offset; | |
| 44 | pin_buff->size = size; | |
| a7975a2f RL |
45 | return 0; |
| 46 | } | |
| 47 | ||
| 56cf2635 RL |
48 | void cudbg_put_buff(struct cudbg_init *pdbg_init, |
| 49 | struct cudbg_buffer *pin_buff) | |
| a7975a2f | 50 | { |
| 56cf2635 RL |
51 | /* Clear compression buffer for re-use */ |
| 52 | if (pdbg_init->compress_type != CUDBG_COMPRESSION_NONE) | |
| 53 | memset(pdbg_init->compress_buff, 0, | |
| 54 | pdbg_init->compress_buff_size); | |
| 55 | ||
| a7975a2f RL |
56 | pin_buff->data = NULL; |
| 57 | pin_buff->offset = 0; | |
| 58 | pin_buff->size = 0; | |
| 59 | } | |
| 60 | ||
| 61 | void cudbg_update_buff(struct cudbg_buffer *pin_buff, | |
| 62 | struct cudbg_buffer *pout_buff) | |
| 63 | { | |
| 64 | /* We already write to buffer provided by ethool, so just | |
| 65 | * increment offset to next free space. | |
| 66 | */ | |
| 67 | pout_buff->offset += pin_buff->size; | |
| 68 | } |