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         int16_t next_qid[MAX_NUM_STAGES+2];
  83         int16_t qid[MAX_NUM_STAGES];
  84         uint8_t rx_adapter_id;
  85 };
  86
  87 struct port_link {
  88         uint8_t queue_id;
  89         uint8_t priority;
  90 };
  91
  92 struct cons_data cons_data;
  93
  94 struct fastpath_data *fdata;
  95 struct config_data cdata;
  96
  97 static __rte_always_inline void
  98 work(struct rte_mbuf *m)
  99 {
 100         struct ether_hdr *eth;
 101         struct ether_addr addr;
 102
 103         /* change mac addresses on packet (to use mbuf data) */
 104         /*
 105          * FIXME Swap mac address properly and also handle the
 106          * case for both odd and even number of stages that the
 107          * addresses end up the same at the end of the pipeline
 108          */
 109         eth = rte_pktmbuf_mtod(m, struct ether_hdr *);
 110         ether_addr_copy(&eth->d_addr, &addr);
 111         ether_addr_copy(&addr, &eth->d_addr);
 112
 113         /* do a number of cycles of work per packet */
 114         volatile uint64_t start_tsc = rte_rdtsc();
 115         while (rte_rdtsc() < start_tsc + cdata.worker_cycles)
 116                 rte_pause();
 117 }
 118
 119 static __rte_always_inline void
 120 schedule_devices(unsigned int lcore_id)
 121 {
 122         if (fdata->rx_core[lcore_id]) {
 123                 rte_service_run_iter_on_app_lcore(fdata->rxadptr_service_id,
 124                                 !fdata->rx_single);
 125         }
 126
 127         if (fdata->sched_core[lcore_id]) {
 128                 rte_service_run_iter_on_app_lcore(fdata->evdev_service_id,
 129                                 !fdata->sched_single);
 130                 if (cdata.dump_dev_signal) {
 131                         rte_event_dev_dump(0, stdout);
 132                         cdata.dump_dev_signal = 0;
 133                 }
 134         }
 135
 136         if (fdata->tx_core[lcore_id] && (fdata->tx_single ||
 137                          rte_atomic32_cmpset(&(fdata->tx_lock), 0, 1))) {
 138                 fdata->cap.consumer();
 139                 rte_atomic32_clear((rte_atomic32_t *)&(fdata->tx_lock));
 140         }
 141 }
 142
 143 void set_worker_generic_setup_data(struct setup_data *caps, bool burst);