projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 4fa9c49f | 1 | // SPDX-License-Identifier: GPL-2.0-only |
| a7975a2f RL |
2 | /* |
| 3 | * Copyright (C) 2017 Chelsio Communications. All rights reserved. | |
| a7975a2f RL |
4 | */ |
| 5 | ||
| 6 | #include "cxgb4.h" | |
| 7 | #include "cudbg_if.h" | |
| 8 | #include "cudbg_lib_common.h" | |
| 9 | ||
| 56cf2635 RL |
10 | int cudbg_get_buff(struct cudbg_init *pdbg_init, |
| 11 | struct cudbg_buffer *pdbg_buff, u32 size, | |
| a7975a2f RL |
12 | struct cudbg_buffer *pin_buff) |
| 13 | { | |
| 14 | u32 offset; | |
| 15 | ||
| 16 | offset = pdbg_buff->offset; | |
| 17 | if (offset + size > pdbg_buff->size) | |
| 18 | return CUDBG_STATUS_NO_MEM; | |
| 19 | ||
| 56cf2635 RL |
20 | if (pdbg_init->compress_type != CUDBG_COMPRESSION_NONE) { |
| 21 | if (size > pdbg_init->compress_buff_size) | |
| 22 | return CUDBG_STATUS_NO_MEM; | |
| 23 | ||
| 24 | pin_buff->data = (char *)pdbg_init->compress_buff; | |
| 25 | pin_buff->offset = 0; | |
| 26 | pin_buff->size = size; | |
| 27 | return 0; | |
| 28 | } | |
| 29 | ||
| a7975a2f RL |
30 | pin_buff->data = (char *)pdbg_buff->data + offset; |
| 31 | pin_buff->offset = offset; | |
| 32 | pin_buff->size = size; | |
| a7975a2f RL |
33 | return 0; |
| 34 | } | |
| 35 | ||
| 56cf2635 RL |
36 | void cudbg_put_buff(struct cudbg_init *pdbg_init, |
| 37 | struct cudbg_buffer *pin_buff) | |
| a7975a2f | 38 | { |
| 56cf2635 RL |
39 | /* Clear compression buffer for re-use */ |
| 40 | if (pdbg_init->compress_type != CUDBG_COMPRESSION_NONE) | |
| 41 | memset(pdbg_init->compress_buff, 0, | |
| 42 | pdbg_init->compress_buff_size); | |
| 43 | ||
| a7975a2f RL |
44 | pin_buff->data = NULL; |
| 45 | pin_buff->offset = 0; | |
| 46 | pin_buff->size = 0; | |
| 47 | } | |
| 48 | ||
| 49 | void cudbg_update_buff(struct cudbg_buffer *pin_buff, | |
| 50 | struct cudbg_buffer *pout_buff) | |
| 51 | { | |
| 52 | /* We already write to buffer provided by ethool, so just | |
| 53 | * increment offset to next free space. | |
| 54 | */ | |
| 55 | pout_buff->offset += pin_buff->size; | |
| 56 | } |