1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2020 Intel Corporation 3 */ 4 5 #include <errno.h> 6 #include <stdlib.h> 7 #include <string.h> 8 9 #include "rte_sched_log.h" 10 #include "rte_pie.h" 11 12 #ifdef __INTEL_COMPILER 13 #pragma warning(disable:2259) /* conversion may lose significant bits */ 14 #endif 15 16 int 17 rte_pie_rt_data_init(struct rte_pie *pie) 18 { 19 if (pie == NULL) { 20 SCHED_LOG(ERR, "%s: Invalid addr for pie", __func__); 21 return -EINVAL; 22 } 23 24 memset(pie, 0, sizeof(*pie)); 25 26 return 0; 27 } 28 29 int 30 rte_pie_config_init(struct rte_pie_config *pie_cfg, 31 const uint16_t qdelay_ref, 32 const uint16_t dp_update_interval, 33 const uint16_t max_burst, 34 const uint16_t tailq_th) 35 { 36 uint64_t tsc_hz = rte_get_tsc_hz(); 37 38 if (pie_cfg == NULL) 39 return -1; 40 41 if (qdelay_ref <= 0) { 42 SCHED_LOG(ERR, 43 "%s: Incorrect value for qdelay_ref", __func__); 44 return -EINVAL; 45 } 46 47 if (dp_update_interval <= 0) { 48 SCHED_LOG(ERR, 49 "%s: Incorrect value for dp_update_interval", __func__); 50 return -EINVAL; 51 } 52 53 if (max_burst <= 0) { 54 SCHED_LOG(ERR, 55 "%s: Incorrect value for max_burst", __func__); 56 return -EINVAL; 57 } 58 59 if (tailq_th <= 0) { 60 SCHED_LOG(ERR, 61 "%s: Incorrect value for tailq_th", __func__); 62 return -EINVAL; 63 } 64 65 pie_cfg->qdelay_ref = (tsc_hz * qdelay_ref) / 1000; 66 pie_cfg->dp_update_interval = (tsc_hz * dp_update_interval) / 1000; 67 pie_cfg->max_burst = (tsc_hz * max_burst) / 1000; 68 pie_cfg->tailq_th = tailq_th; 69 70 return 0; 71 } 72