+++ /dev/null
-/*-
- * BSD LICENSE
- *
- * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-
-#include <rte_common.h>
-#include <rte_byteorder.h>
-#include <rte_log.h>
-#include <rte_malloc.h>
-#include <rte_ethdev.h>
-#include <rte_mbuf.h>
-#include <rte_ether.h>
-#include <rte_ip.h>
-#include <rte_jhash.h>
-
-#include <rte_port_ethdev.h>
-#include <rte_port_ring.h>
-#include <rte_table_stub.h>
-#include <rte_pipeline.h>
-
-
-#include "main.h"
-
-struct app_core_rx_message_handle_params {
- struct rte_ring *ring_req;
- struct rte_ring *ring_resp;
-
- struct rte_pipeline *p;
- uint32_t *port_in_id;
-};
-
-static void
-app_message_handle(struct app_core_rx_message_handle_params *params);
-
-static int
-app_pipeline_rx_port_in_action_handler(struct rte_mbuf **pkts, uint32_t n,
- uint64_t *pkts_mask, void *arg);
-
-void
-app_main_loop_pipeline_rx(void) {
- struct rte_pipeline *p;
- uint32_t port_in_id[APP_MAX_PORTS];
- uint32_t port_out_id[APP_MAX_PORTS];
- uint32_t table_id[APP_MAX_PORTS];
- uint32_t i;
-
- uint32_t core_id = rte_lcore_id();
- struct app_core_params *core_params = app_get_core_params(core_id);
- struct app_core_rx_message_handle_params mh_params;
-
- if ((core_params == NULL) || (core_params->core_type != APP_CORE_RX))
- rte_panic("Core %u misconfiguration\n", core_id);
-
- RTE_LOG(INFO, USER1, "Core %u is doing RX\n", core_id);
-
- /* Pipeline configuration */
- struct rte_pipeline_params pipeline_params = {
- .name = "pipeline",
- .socket_id = rte_socket_id(),
- };
-
- p = rte_pipeline_create(&pipeline_params);
- if (p == NULL)
- rte_panic("%s: Unable to configure the pipeline\n", __func__);
-
- /* Input port configuration */
- for (i = 0; i < app.n_ports; i++) {
- struct rte_port_ethdev_reader_params port_ethdev_params = {
- .port_id = app.ports[i],
- .queue_id = 0,
- };
-
- struct rte_pipeline_port_in_params port_params = {
- .ops = &rte_port_ethdev_reader_ops,
- .arg_create = (void *) &port_ethdev_params,
- .f_action = app_pipeline_rx_port_in_action_handler,
- .arg_ah = NULL,
- .burst_size = app.bsz_hwq_rd,
- };
-
- if (rte_pipeline_port_in_create(p, &port_params,
- &port_in_id[i]))
- rte_panic("%s: Unable to configure input port for "
- "port %d\n", __func__, app.ports[i]);
- }
-
- /* Output port configuration */
- for (i = 0; i < app.n_ports; i++) {
- struct rte_port_ring_writer_params port_ring_params = {
- .ring = app.rings[core_params->swq_out[i]],
- .tx_burst_sz = app.bsz_swq_wr,
- };
-
- struct rte_pipeline_port_out_params port_params = {
- .ops = &rte_port_ring_writer_ops,
- .arg_create = (void *) &port_ring_params,
- .f_action = NULL,
- .f_action_bulk = NULL,
- .arg_ah = NULL,
- };
-
- if (rte_pipeline_port_out_create(p, &port_params,
- &port_out_id[i]))
- rte_panic("%s: Unable to configure output port for "
- "ring RX %i\n", __func__, i);
- }
-
- /* Table configuration */
- for (i = 0; i < app.n_ports; i++) {
- struct rte_pipeline_table_params table_params = {
- .ops = &rte_table_stub_ops,
- .arg_create = NULL,
- .f_action_hit = NULL,
- .f_action_miss = NULL,
- .arg_ah = NULL,
- .action_data_size = 0,
- };
-
- if (rte_pipeline_table_create(p, &table_params, &table_id[i]))
- rte_panic("%s: Unable to configure table %u\n",
- __func__, table_id[i]);
- }
-
- /* Interconnecting ports and tables */
- for (i = 0; i < app.n_ports; i++)
- if (rte_pipeline_port_in_connect_to_table(p, port_in_id[i],
- table_id[i]))
- rte_panic("%s: Unable to connect input port %u to "
- "table %u\n", __func__, port_in_id[i],
- table_id[i]);
-
- /* Add entries to tables */
- for (i = 0; i < app.n_ports; i++) {
- struct rte_pipeline_table_entry default_entry = {
- .action = RTE_PIPELINE_ACTION_PORT,
- {.port_id = port_out_id[i]},
- };
-
- struct rte_pipeline_table_entry *default_entry_ptr;
-
- if (rte_pipeline_table_default_entry_add(p, table_id[i],
- &default_entry, &default_entry_ptr))
- rte_panic("%s: Unable to add default entry to "
- "table %u\n", __func__, table_id[i]);
- }
-
- /* Enable input ports */
- for (i = 0; i < app.n_ports; i++)
- if (rte_pipeline_port_in_enable(p, port_in_id[i]))
- rte_panic("Unable to enable input port %u\n",
- port_in_id[i]);
-
- /* Check pipeline consistency */
- if (rte_pipeline_check(p) < 0)
- rte_panic("%s: Pipeline consistency check failed\n", __func__);
-
- /* Message handling */
- mh_params.ring_req =
- app_get_ring_req(app_get_first_core_id(APP_CORE_RX));
- mh_params.ring_resp =
- app_get_ring_resp(app_get_first_core_id(APP_CORE_RX));
- mh_params.p = p;
- mh_params.port_in_id = port_in_id;
-
- /* Run-time */
- for (i = 0; ; i++) {
- rte_pipeline_run(p);
-
- if ((i & APP_FLUSH) == 0) {
- rte_pipeline_flush(p);
- app_message_handle(&mh_params);
- }
- }
-}
-
-uint64_t test_hash(
- void *key,
- __attribute__((unused)) uint32_t key_size,
- __attribute__((unused)) uint64_t seed)
-{
- struct app_flow_key *flow_key = (struct app_flow_key *) key;
- uint32_t ip_dst = rte_be_to_cpu_32(flow_key->ip_dst);
- uint64_t signature = (ip_dst & 0x00FFFFFFLLU) >> 2;
-
- return signature;
-}
-
-uint32_t
-rte_jhash2_16(uint32_t *k, uint32_t initval)
-{
- uint32_t a, b, c;
-
- a = b = RTE_JHASH_GOLDEN_RATIO;
- c = initval;
-
- a += k[0];
- b += k[1];
- c += k[2];
- __rte_jhash_mix(a, b, c);
-
- c += 16; /* length in bytes */
- a += k[3]; /* Remaining word */
-
- __rte_jhash_mix(a, b, c);
-
- return c;
-}
-
-static inline void
-app_pkt_metadata_fill(struct rte_mbuf *m)
-{
- uint8_t *m_data = rte_pktmbuf_mtod(m, uint8_t *);
- struct app_pkt_metadata *c =
- (struct app_pkt_metadata *) RTE_MBUF_METADATA_UINT8_PTR(m, 0);
- struct ipv4_hdr *ip_hdr =
- (struct ipv4_hdr *) &m_data[sizeof(struct ether_hdr)];
- uint64_t *ipv4_hdr_slab = (uint64_t *) ip_hdr;
-
- /* TTL and Header Checksum are set to 0 */
- c->flow_key.slab0 = ipv4_hdr_slab[1] & 0xFFFFFFFF0000FF00LLU;
- c->flow_key.slab1 = ipv4_hdr_slab[2];
- c->signature = test_hash((void *) &c->flow_key, 0, 0);
-
- /* Pop Ethernet header */
- if (app.ether_hdr_pop_push) {
- rte_pktmbuf_adj(m, (uint16_t)sizeof(struct ether_hdr));
- m->l2_len = 0;
- m->l3_len = sizeof(struct ipv4_hdr);
- }
-}
-
-int
-app_pipeline_rx_port_in_action_handler(
- struct rte_mbuf **pkts,
- uint32_t n,
- uint64_t *pkts_mask,
- __rte_unused void *arg)
-{
- uint32_t i;
-
- for (i = 0; i < n; i++) {
- struct rte_mbuf *m = pkts[i];
-
- app_pkt_metadata_fill(m);
- }
-
- *pkts_mask = (~0LLU) >> (64 - n);
-
- return 0;
-}
-
-void
-app_main_loop_rx(void) {
- struct app_mbuf_array *ma;
- uint32_t i, j;
- int ret;
-
- uint32_t core_id = rte_lcore_id();
- struct app_core_params *core_params = app_get_core_params(core_id);
-
- if ((core_params == NULL) || (core_params->core_type != APP_CORE_RX))
- rte_panic("Core %u misconfiguration\n", core_id);
-
- RTE_LOG(INFO, USER1, "Core %u is doing RX (no pipeline)\n", core_id);
-
- ma = rte_malloc_socket(NULL, sizeof(struct app_mbuf_array),
- RTE_CACHE_LINE_SIZE, rte_socket_id());
- if (ma == NULL)
- rte_panic("%s: cannot allocate buffer space\n", __func__);
-
- for (i = 0; ; i = ((i + 1) & (app.n_ports - 1))) {
- uint32_t n_mbufs;
-
- n_mbufs = rte_eth_rx_burst(
- app.ports[i],
- 0,
- ma->array,
- app.bsz_hwq_rd);
-
- if (n_mbufs == 0)
- continue;
-
- for (j = 0; j < n_mbufs; j++) {
- struct rte_mbuf *m = ma->array[j];
-
- app_pkt_metadata_fill(m);
- }
-
- do {
- ret = rte_ring_sp_enqueue_bulk(
- app.rings[core_params->swq_out[i]],
- (void **) ma->array,
- n_mbufs);
- } while (ret < 0);
- }
-}
-
-void
-app_message_handle(struct app_core_rx_message_handle_params *params)
-{
- struct rte_ring *ring_req = params->ring_req;
- struct rte_ring *ring_resp;
- void *msg;
- struct app_msg_req *req;
- struct app_msg_resp *resp;
- struct rte_pipeline *p;
- uint32_t *port_in_id;
- int result;
-
- /* Read request message */
- result = rte_ring_sc_dequeue(ring_req, &msg);
- if (result != 0)
- return;
-
- ring_resp = params->ring_resp;
- p = params->p;
- port_in_id = params->port_in_id;
-
- /* Handle request */
- req = (struct app_msg_req *)rte_ctrlmbuf_data((struct rte_mbuf *)msg);
- switch (req->type) {
- case APP_MSG_REQ_PING:
- {
- result = 0;
- break;
- }
-
- case APP_MSG_REQ_RX_PORT_ENABLE:
- {
- result = rte_pipeline_port_in_enable(p,
- port_in_id[req->rx_up.port]);
- break;
- }
-
- case APP_MSG_REQ_RX_PORT_DISABLE:
- {
- result = rte_pipeline_port_in_disable(p,
- port_in_id[req->rx_down.port]);
- break;
- }
-
- default:
- rte_panic("RX Unrecognized message type (%u)\n", req->type);
- }
-
- /* Fill in response message */
- resp = (struct app_msg_resp *)rte_ctrlmbuf_data((struct rte_mbuf *)msg);
- resp->result = result;
-
- /* Send response */
- do {
- result = rte_ring_sp_enqueue(ring_resp, msg);
- } while (result == -ENOBUFS);
-}
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