From: Pavan Nikhilesh Date: Wed, 10 Jan 2018 11:10:09 +0000 (+0530) Subject: examples/eventdev: add single stage pipeline worker X-Git-Tag: spdx-start~172 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=6df5657b3f2da76dc539da839d4d81bc454872f6;p=dpdk.git examples/eventdev: add single stage pipeline worker Add optimized eventdev pipeline when ethdev supports thread safe Tx and number of configured stages is one. Signed-off-by: Pavan Nikhilesh Acked-by: Harry van Haaren --- diff --git a/examples/eventdev_pipeline_sw_pmd/pipeline_worker_tx.c b/examples/eventdev_pipeline_sw_pmd/pipeline_worker_tx.c index 25eabbd6ca..21985b00d9 100644 --- a/examples/eventdev_pipeline_sw_pmd/pipeline_worker_tx.c +++ b/examples/eventdev_pipeline_sw_pmd/pipeline_worker_tx.c @@ -43,6 +43,90 @@ worker_tx_pkt(struct rte_mbuf *mbuf) rte_pause(); } +/* Single stage pipeline workers */ + +static int +worker_do_tx_single(void *arg) +{ + struct worker_data *data = (struct worker_data *)arg; + const uint8_t dev = data->dev_id; + const uint8_t port = data->port_id; + size_t fwd = 0, received = 0, tx = 0; + struct rte_event ev; + + while (!fdata->done) { + + if (!rte_event_dequeue_burst(dev, port, &ev, 1, 0)) { + rte_pause(); + continue; + } + + received++; + + if (ev.sched_type == RTE_SCHED_TYPE_ATOMIC) { + worker_tx_pkt(ev.mbuf); + tx++; + continue; + } + work(); + ev.queue_id++; + worker_fwd_event(&ev, RTE_SCHED_TYPE_ATOMIC); + worker_event_enqueue(dev, port, &ev); + fwd++; + } + + if (!cdata.quiet) + printf(" worker %u thread done. RX=%zu FWD=%zu TX=%zu\n", + rte_lcore_id(), received, fwd, tx); + return 0; +} + +static int +worker_do_tx_single_burst(void *arg) +{ + struct rte_event ev[BATCH_SIZE + 1]; + + struct worker_data *data = (struct worker_data *)arg; + const uint8_t dev = data->dev_id; + const uint8_t port = data->port_id; + size_t fwd = 0, received = 0, tx = 0; + + while (!fdata->done) { + uint16_t i; + uint16_t nb_rx = rte_event_dequeue_burst(dev, port, ev, + BATCH_SIZE, 0); + + if (!nb_rx) { + rte_pause(); + continue; + } + received += nb_rx; + + for (i = 0; i < nb_rx; i++) { + rte_prefetch0(ev[i + 1].mbuf); + if (ev[i].sched_type == RTE_SCHED_TYPE_ATOMIC) { + + worker_tx_pkt(ev[i].mbuf); + ev[i].op = RTE_EVENT_OP_RELEASE; + tx++; + + } else { + ev[i].queue_id++; + worker_fwd_event(&ev[i], RTE_SCHED_TYPE_ATOMIC); + } + work(); + } + + worker_event_enqueue_burst(dev, port, ev, nb_rx); + fwd += nb_rx; + } + + if (!cdata.quiet) + printf(" worker %u thread done. RX=%zu FWD=%zu TX=%zu\n", + rte_lcore_id(), received, fwd, tx); + return 0; +} + /* Multi stage Pipeline Workers */ static int @@ -617,15 +701,33 @@ get_worker_loop_non_burst(uint8_t atq) return worker_do_tx; } -void -set_worker_tx_setup_data(struct setup_data *caps, bool burst) +static worker_loop +get_worker_single_stage(bool burst) +{ + if (burst) + return worker_do_tx_single_burst; + + return worker_do_tx_single; +} + +static worker_loop +get_worker_multi_stage(bool burst) { uint8_t atq = cdata.all_type_queues ? 1 : 0; if (burst) - caps->worker = get_worker_loop_burst(atq); + return get_worker_loop_burst(atq); + + return get_worker_loop_non_burst(atq); +} + +void +set_worker_tx_setup_data(struct setup_data *caps, bool burst) +{ + if (cdata.num_stages == 1) + caps->worker = get_worker_single_stage(burst); else - caps->worker = get_worker_loop_non_burst(atq); + caps->worker = get_worker_multi_stage(burst); memset(fdata->tx_core, 0, sizeof(unsigned int) * MAX_NUM_CORE); @@ -634,4 +736,5 @@ set_worker_tx_setup_data(struct setup_data *caps, bool burst) caps->scheduler = schedule_devices; caps->evdev_setup = setup_eventdev_worker_tx; caps->adptr_setup = init_rx_adapter; + }