1 /* 2 * Copyright (c) 2020 HiSilicon (Shanghai) Technologies CO., LIMITED. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 * Description: hcc flow ctrl module completion. 15 * Author: 16 * Create: 2021-06-30 17 */ 18 19 #ifndef HCC_FLOW_CTRL_HEADER 20 #define HCC_FLOW_CTRL_HEADER 21 22 #include "td_type.h" 23 #include "hcc.h" 24 #include "hcc_queue.h" 25 26 #ifdef __cplusplus 27 #if __cplusplus 28 extern "C" { 29 #endif 30 #endif 31 32 #define HCC_FC_PRE_PROC_WAIT_TIME 1000 33 34 typedef enum _hcc_flowctrl_type_ { 35 HCC_FLOWCTRL_DATA, // 被动接收 接收端的状态，（msg方式） 36 HCC_FLOWCTRL_CREDIT, // 发送前主动获取接收端的剩余包数量 37 HCC_FLOWCTRL_BUTT, 38 HCC_FLOWCTRL_TYPE_INVALID = 0xF 39 } hcc_flowctrl_type; 40 41 typedef enum _hcc_flowctrl_flag_ { 42 HCC_FLOWCTRL_FLAG_OFF = 0, 43 HCC_FLOWCTRL_FLAG_ON = 1 44 } hcc_flowctrl_flag; 45 46 #ifdef CONFIG_HCC_SUPPORT_FLOW_CONTRL 47 td_bool hcc_flow_ctrl_sched_check(hcc_handler *hcc, hcc_trans_queue *queue); 48 ext_errno hcc_flow_ctrl_process(hcc_handler *hcc, hcc_trans_queue *queue); 49 td_u32 hcc_flowctrl_on_proc(td_u8 *data); 50 td_u32 hcc_flowctrl_off_proc(td_u8 *data); 51 td_u32 hcc_flowctrl_check_proc(td_u8 *data); 52 #if (defined(_PRE_OS_VERSION_LINUX) && defined(_PRE_OS_VERSION) && (_PRE_OS_VERSION_LINUX == _PRE_OS_VERSION)) 53 ext_errno hcc_flow_ctrl_pre_proc(hcc_handler *hcc, hcc_transfer_param *param, hcc_trans_queue *hcc_queue); 54 #else 55 ext_errno hcc_flow_ctrl_pre_proc(hcc_handler *hcc, TD_CONST hcc_transfer_param *param, 56 hcc_trans_queue *hcc_queue); 57 #endif 58 td_void hcc_adapt_tx_start_subq(hcc_handler *hcc, hcc_trans_queue *hcc_queue); 59 ext_errno hcc_flow_ctrl_module_init(hcc_handler *hcc); 60 td_void hcc_flow_ctrl_module_deinit(hcc_handler *hcc); 61 td_void fc_msg_init(td_u8 chl); 62 #endif 63 td_bool fc_below_low_waterline(hcc_trans_queue *hcc_queue); 64 65 #ifdef __cplusplus 66 #if __cplusplus 67 } 68 #endif 69 #endif 70 71 #endif /* HCC_FLOW_CTRL_HEADER */