// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2017 Chelsio Communications. All rights reserved. */ #include "cxgb4.h" #include "cudbg_if.h" #include "cudbg_lib_common.h" int cudbg_get_buff(struct cudbg_init *pdbg_init, struct cudbg_buffer *pdbg_buff, u32 size, struct cudbg_buffer *pin_buff) { u32 offset; offset = pdbg_buff->offset; if (offset + size > pdbg_buff->size) return CUDBG_STATUS_NO_MEM; if (pdbg_init->compress_type != CUDBG_COMPRESSION_NONE) { if (size > pdbg_init->compress_buff_size) return CUDBG_STATUS_NO_MEM; pin_buff->data = (char *)pdbg_init->compress_buff; pin_buff->offset = 0; pin_buff->size = size; return 0; } pin_buff->data = (char *)pdbg_buff->data + offset; pin_buff->offset = offset; pin_buff->size = size; return 0; } void cudbg_put_buff(struct cudbg_init *pdbg_init, struct cudbg_buffer *pin_buff) { /* Clear compression buffer for re-use */ if (pdbg_init->compress_type != CUDBG_COMPRESSION_NONE) memset(pdbg_init->compress_buff, 0, pdbg_init->compress_buff_size); pin_buff->data = NULL; pin_buff->offset = 0; pin_buff->size = 0; } void cudbg_update_buff(struct cudbg_buffer *pin_buff, struct cudbg_buffer *pout_buff) { /* We already write to buffer provided by ethool, so just * increment offset to next free space. */ pout_buff->offset += pin_buff->size; }