1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2020 Intel Corporation 3 */ 4 5 #include <stdlib.h> 6 #include <string.h> 7 8 #include "rte_pie.h" 9 10 #ifdef __INTEL_COMPILER 11 #pragma warning(disable:2259) /* conversion may lose significant bits */ 12 #endif 13 14 int 15 rte_pie_rt_data_init(struct rte_pie *pie) 16 { 17 if (pie == NULL) { 18 RTE_LOG(ERR, SCHED, "%s: Invalid addr for pie\n", __func__); 19 return -EINVAL; 20 } 21 22 memset(pie, 0, sizeof(*pie)); 23 24 return 0; 25 } 26 27 int 28 rte_pie_config_init(struct rte_pie_config *pie_cfg, 29 const uint16_t qdelay_ref, 30 const uint16_t dp_update_interval, 31 const uint16_t max_burst, 32 const uint16_t tailq_th) 33 { 34 uint64_t tsc_hz = rte_get_tsc_hz(); 35 36 if (pie_cfg == NULL) 37 return -1; 38 39 if (qdelay_ref <= 0) { 40 RTE_LOG(ERR, SCHED, 41 "%s: Incorrect value for qdelay_ref\n", __func__); 42 return -EINVAL; 43 } 44 45 if (dp_update_interval <= 0) { 46 RTE_LOG(ERR, SCHED, 47 "%s: Incorrect value for dp_update_interval\n", __func__); 48 return -EINVAL; 49 } 50 51 if (max_burst <= 0) { 52 RTE_LOG(ERR, SCHED, 53 "%s: Incorrect value for max_burst\n", __func__); 54 return -EINVAL; 55 } 56 57 if (tailq_th <= 0) { 58 RTE_LOG(ERR, SCHED, 59 "%s: Incorrect value for tailq_th\n", __func__); 60 return -EINVAL; 61 } 62 63 pie_cfg->qdelay_ref = (tsc_hz * qdelay_ref) / 1000; 64 pie_cfg->dp_update_interval = (tsc_hz * dp_update_interval) / 1000; 65 pie_cfg->max_burst = (tsc_hz * max_burst) / 1000; 66 pie_cfg->tailq_th = tailq_th; 67 68 return 0; 69 } 70