examples/eventdev_pipeline_sw_pmd/pipeline_common.h

   1 /*
   2  * SPDX-License-Identifier: BSD-3-Clause
   3  * Copyright 2016 Intel Corporation.
   4  * Copyright 2017 Cavium, Inc.
   5  */
   6
   7 #include <stdbool.h>
   8
   9 #include <rte_eal.h>
  10 #include <rte_mempool.h>
  11 #include <rte_mbuf.h>
  12 #include <rte_launch.h>
  13 #include <rte_malloc.h>
  14 #include <rte_random.h>
  15 #include <rte_cycles.h>
  16 #include <rte_ethdev.h>
  17 #include <rte_eventdev.h>
  18 #include <rte_event_eth_rx_adapter.h>
  19 #include <rte_service.h>
  20 #include <rte_service_component.h>
  21
  22 #define MAX_NUM_STAGES 8
  23 #define BATCH_SIZE 16
  24 #define MAX_NUM_CORE 64
  25
  26 struct cons_data {
  27         uint8_t dev_id;
  28         uint8_t port_id;
  29         uint8_t release;
  30 } __rte_cache_aligned;
  31
  32 struct worker_data {
  33         uint8_t dev_id;
  34         uint8_t port_id;
  35 } __rte_cache_aligned;
  36
  37 typedef int (*worker_loop)(void *);
  38 typedef int (*consumer_loop)(void);
  39 typedef void (*schedule_loop)(unsigned int);
  40 typedef int (*eventdev_setup)(struct cons_data *, struct worker_data *);
  41 typedef void (*rx_adapter_setup)(uint16_t nb_ports);
  42 typedef void (*opt_check)(void);
  43
  44 struct setup_data {
  45         worker_loop worker;
  46         consumer_loop consumer;
  47         schedule_loop scheduler;
  48         eventdev_setup evdev_setup;
  49         rx_adapter_setup adptr_setup;
  50         opt_check check_opt;
  51 };
  52
  53 struct fastpath_data {
  54         volatile int done;
  55         uint32_t tx_lock;
  56         uint32_t evdev_service_id;
  57         uint32_t rxadptr_service_id;
  58         bool rx_single;
  59         bool tx_single;
  60         bool sched_single;
  61         unsigned int rx_core[MAX_NUM_CORE];
  62         unsigned int tx_core[MAX_NUM_CORE];
  63         unsigned int sched_core[MAX_NUM_CORE];
  64         unsigned int worker_core[MAX_NUM_CORE];
  65         struct rte_eth_dev_tx_buffer *tx_buf[RTE_MAX_ETHPORTS];
  66         struct setup_data cap;
  67 } __rte_cache_aligned;
  68
  69 struct config_data {
  70         unsigned int active_cores;
  71         unsigned int num_workers;
  72         int64_t num_packets;
  73         unsigned int num_fids;
  74         int queue_type;
  75         int worker_cycles;
  76         int enable_queue_priorities;
  77         int quiet;
  78         int dump_dev;
  79         int dump_dev_signal;
  80         unsigned int num_stages;
  81         unsigned int worker_cq_depth;
  82         unsigned int rx_stride;
  83         /* Use rx stride value to reduce congestion in entry queue when using
  84          * multiple eth ports by forming multiple event queue pipelines.
  85          */
  86         int16_t next_qid[MAX_NUM_STAGES+2];
  87         int16_t qid[MAX_NUM_STAGES];
  88         uint8_t rx_adapter_id;
  89         uint64_t worker_lcore_mask;
  90         uint64_t rx_lcore_mask;
  91         uint64_t tx_lcore_mask;
  92         uint64_t sched_lcore_mask;
  93 };
  94
  95 struct port_link {
  96         uint8_t queue_id;
  97         uint8_t priority;
  98 };
  99
 100 struct cons_data cons_data;
 101
 102 struct fastpath_data *fdata;
 103 struct config_data cdata;
 104
 105 static __rte_always_inline void
 106 exchange_mac(struct rte_mbuf *m)
 107 {
 108         struct ether_hdr *eth;
 109         struct ether_addr addr;
 110
 111         /* change mac addresses on packet (to use mbuf data) */
 112         eth = rte_pktmbuf_mtod(m, struct ether_hdr *);
 113         ether_addr_copy(&eth->d_addr, &addr);
 114         ether_addr_copy(&addr, &eth->d_addr);
 115 }
 116
 117 static __rte_always_inline void
 118 work(void)
 119 {
 120         /* do a number of cycles of work per packet */
 121         volatile uint64_t start_tsc = rte_rdtsc();
 122         while (rte_rdtsc() < start_tsc + cdata.worker_cycles)
 123                 rte_pause();
 124 }
 125
 126 static __rte_always_inline void
 127 schedule_devices(unsigned int lcore_id)
 128 {
 129         if (fdata->rx_core[lcore_id]) {
 130                 rte_service_run_iter_on_app_lcore(fdata->rxadptr_service_id,
 131                                 !fdata->rx_single);
 132         }
 133
 134         if (fdata->sched_core[lcore_id]) {
 135                 rte_service_run_iter_on_app_lcore(fdata->evdev_service_id,
 136                                 !fdata->sched_single);
 137                 if (cdata.dump_dev_signal) {
 138                         rte_event_dev_dump(0, stdout);
 139                         cdata.dump_dev_signal = 0;
 140                 }
 141         }
 142
 143         if (fdata->tx_core[lcore_id] && (fdata->tx_single ||
 144                          rte_atomic32_cmpset(&(fdata->tx_lock), 0, 1))) {
 145                 fdata->cap.consumer();
 146                 rte_atomic32_clear((rte_atomic32_t *)&(fdata->tx_lock));
 147         }
 148 }
 149
 150 void set_worker_generic_setup_data(struct setup_data *caps, bool burst);
 151 void set_worker_tx_setup_data(struct setup_data *caps, bool burst);