-/*-
- * 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.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2017 Intel Corporation
*/
#include <stdint.h>
#include <rte_debug.h>
#include <rte_prefetch.h>
#include <rte_distributor.h>
+#include <rte_pause.h>
-#define RX_RING_SIZE 256
+#define RX_RING_SIZE 512
#define TX_RING_SIZE 512
#define NUM_MBUFS ((64*1024)-1)
-#define MBUF_CACHE_SIZE 250
-#define BURST_SIZE 32
-#define RTE_RING_SZ 1024
+#define MBUF_CACHE_SIZE 128
+#define BURST_SIZE 64
+#define SCHED_RX_RING_SZ 8192
+#define SCHED_TX_RING_SZ 65536
+#define BURST_SIZE_TX 32
#define RTE_LOGTYPE_DISTRAPP RTE_LOGTYPE_USER1
volatile uint8_t quit_signal;
volatile uint8_t quit_signal_rx;
volatile uint8_t quit_signal_dist;
+volatile uint8_t quit_signal_work;
static volatile struct app_stats {
struct {
* coming from the mbuf_pool passed as parameter
*/
static inline int
-port_init(uint8_t port, struct rte_mempool *mbuf_pool)
+port_init(uint16_t port, struct rte_mempool *mbuf_pool)
{
struct rte_eth_conf port_conf = port_conf_default;
const uint16_t rxRings = 1, txRings = rte_lcore_count() - 1;
int retval;
uint16_t q;
+ uint16_t nb_rxd = RX_RING_SIZE;
+ uint16_t nb_txd = TX_RING_SIZE;
if (port >= rte_eth_dev_count())
return -1;
if (retval != 0)
return retval;
+ retval = rte_eth_dev_adjust_nb_rx_tx_desc(port, &nb_rxd, &nb_txd);
+ if (retval != 0)
+ return retval;
+
for (q = 0; q < rxRings; q++) {
- retval = rte_eth_rx_queue_setup(port, q, RX_RING_SIZE,
+ retval = rte_eth_rx_queue_setup(port, q, nb_rxd,
rte_eth_dev_socket_id(port),
NULL, mbuf_pool);
if (retval < 0)
}
for (q = 0; q < txRings; q++) {
- retval = rte_eth_tx_queue_setup(port, q, TX_RING_SIZE,
+ retval = rte_eth_tx_queue_setup(port, q, nb_txd,
rte_eth_dev_socket_id(port),
NULL);
if (retval < 0)
struct rte_eth_link link;
rte_eth_link_get_nowait(port, &link);
- if (!link.link_status) {
+ while (!link.link_status) {
+ printf("Waiting for Link up on port %"PRIu16"\n", port);
sleep(1);
rte_eth_link_get_nowait(port, &link);
}
if (!link.link_status) {
- printf("Link down on port %"PRIu8"\n", port);
+ printf("Link down on port %"PRIu16"\n", port);
return 0;
}
rte_eth_macaddr_get(port, &addr);
printf("Port %u MAC: %02"PRIx8" %02"PRIx8" %02"PRIx8
" %02"PRIx8" %02"PRIx8" %02"PRIx8"\n",
- (unsigned)port,
+ port,
addr.addr_bytes[0], addr.addr_bytes[1],
addr.addr_bytes[2], addr.addr_bytes[3],
addr.addr_bytes[4], addr.addr_bytes[5]);
struct lcore_params {
unsigned worker_id;
struct rte_distributor *d;
- struct rte_ring *r;
+ struct rte_ring *rx_dist_ring;
+ struct rte_ring *dist_tx_ring;
struct rte_mempool *mem_pool;
};
-static int
-quit_workers(struct rte_distributor *d, struct rte_mempool *p)
-{
- const unsigned num_workers = rte_lcore_count() - 2;
- unsigned i;
- struct rte_mbuf *bufs[num_workers];
-
- if (rte_mempool_get_bulk(p, (void *)bufs, num_workers) != 0) {
- printf("line %d: Error getting mbufs from pool\n", __LINE__);
- return -1;
- }
-
- for (i = 0; i < num_workers; i++)
- bufs[i]->hash.rss = i << 1;
-
- rte_distributor_process(d, bufs, num_workers);
- rte_mempool_put_bulk(p, (void *)bufs, num_workers);
-
- return 0;
-}
-
static int
lcore_rx(struct lcore_params *p)
{
- struct rte_distributor *d = p->d;
- struct rte_mempool *mem_pool = p->mem_pool;
- struct rte_ring *r = p->r;
- const uint8_t nb_ports = rte_eth_dev_count();
+ const uint16_t nb_ports = rte_eth_dev_count();
const int socket_id = rte_socket_id();
- uint8_t port;
+ uint16_t port;
+ struct rte_mbuf *bufs[BURST_SIZE*2];
for (port = 0; port < nb_ports; port++) {
/* skip ports that are not enabled */
port = 0;
continue;
}
- struct rte_mbuf *bufs[BURST_SIZE*2];
const uint16_t nb_rx = rte_eth_rx_burst(port, 0, bufs,
BURST_SIZE);
if (unlikely(nb_rx == 0)) {
}
app_stats.rx.rx_pkts += nb_rx;
- rte_distributor_process(d, bufs, nb_rx);
- const uint16_t nb_ret = rte_distributor_returned_pkts(d,
- bufs, BURST_SIZE*2);
+/*
+ * You can run the distributor on the rx core with this code. Returned
+ * packets are then send straight to the tx core.
+ */
+#if 0
+ rte_distributor_process(d, bufs, nb_rx);
+ const uint16_t nb_ret = rte_distributor_returned_pktsd,
+ bufs, BURST_SIZE*2);
+
app_stats.rx.returned_pkts += nb_ret;
if (unlikely(nb_ret == 0)) {
if (++port == nb_ports)
continue;
}
- uint16_t sent = rte_ring_enqueue_burst(r, (void *)bufs, nb_ret);
+ struct rte_ring *tx_ring = p->dist_tx_ring;
+ uint16_t sent = rte_ring_enqueue_burst(tx_ring,
+ (void *)bufs, nb_ret, NULL);
+#else
+ uint16_t nb_ret = nb_rx;
+ /*
+ * Swap the following two lines if you want the rx traffic
+ * to go directly to tx, no distribution.
+ */
+ struct rte_ring *out_ring = p->rx_dist_ring;
+ /* struct rte_ring *out_ring = p->dist_tx_ring; */
+
+ uint16_t sent = rte_ring_enqueue_burst(out_ring,
+ (void *)bufs, nb_ret, NULL);
+#endif
+
app_stats.rx.enqueued_pkts += sent;
if (unlikely(sent < nb_ret)) {
+ app_stats.rx.enqdrop_pkts += nb_ret - sent;
RTE_LOG_DP(DEBUG, DISTRAPP,
"%s:Packet loss due to full ring\n", __func__);
while (sent < nb_ret)
if (++port == nb_ports)
port = 0;
}
- rte_distributor_process(d, NULL, 0);
- /* flush distributor to bring to known state */
- rte_distributor_flush(d);
/* set worker & tx threads quit flag */
+ printf("\nCore %u exiting rx task.\n", rte_lcore_id());
quit_signal = 1;
- /*
- * worker threads may hang in get packet as
- * distributor process is not running, just make sure workers
- * get packets till quit_signal is actually been
- * received and they gracefully shutdown
- */
- if (quit_workers(d, mem_pool) != 0)
- return -1;
- /* rx thread should quit at last */
return 0;
}
static inline void
flush_one_port(struct output_buffer *outbuf, uint8_t outp)
{
- unsigned nb_tx = rte_eth_tx_burst(outp, 0, outbuf->mbufs,
- outbuf->count);
- app_stats.tx.tx_pkts += nb_tx;
+ unsigned int nb_tx = rte_eth_tx_burst(outp, 0,
+ outbuf->mbufs, outbuf->count);
+ app_stats.tx.tx_pkts += outbuf->count;
if (unlikely(nb_tx < outbuf->count)) {
- RTE_LOG_DP(DEBUG, DISTRAPP,
- "%s:Packet loss with tx_burst\n", __func__);
+ app_stats.tx.enqdrop_pkts += outbuf->count - nb_tx;
do {
rte_pktmbuf_free(outbuf->mbufs[nb_tx]);
} while (++nb_tx < outbuf->count);
}
static inline void
-flush_all_ports(struct output_buffer *tx_buffers, uint8_t nb_ports)
+flush_all_ports(struct output_buffer *tx_buffers, uint16_t nb_ports)
{
- uint8_t outp;
+ uint16_t outp;
+
for (outp = 0; outp < nb_ports; outp++) {
/* skip ports that are not enabled */
if ((enabled_port_mask & (1 << outp)) == 0)
}
}
+
+
+static int
+lcore_distributor(struct lcore_params *p)
+{
+ struct rte_ring *in_r = p->rx_dist_ring;
+ struct rte_ring *out_r = p->dist_tx_ring;
+ struct rte_mbuf *bufs[BURST_SIZE * 4];
+ struct rte_distributor *d = p->d;
+
+ printf("\nCore %u acting as distributor core.\n", rte_lcore_id());
+ while (!quit_signal_dist) {
+ const uint16_t nb_rx = rte_ring_dequeue_burst(in_r,
+ (void *)bufs, BURST_SIZE*1, NULL);
+ if (nb_rx) {
+ app_stats.dist.in_pkts += nb_rx;
+
+ /* Distribute the packets */
+ rte_distributor_process(d, bufs, nb_rx);
+ /* Handle Returns */
+ const uint16_t nb_ret =
+ rte_distributor_returned_pkts(d,
+ bufs, BURST_SIZE*2);
+
+ if (unlikely(nb_ret == 0))
+ continue;
+ app_stats.dist.ret_pkts += nb_ret;
+
+ uint16_t sent = rte_ring_enqueue_burst(out_r,
+ (void *)bufs, nb_ret, NULL);
+ app_stats.dist.sent_pkts += sent;
+ if (unlikely(sent < nb_ret)) {
+ app_stats.dist.enqdrop_pkts += nb_ret - sent;
+ RTE_LOG(DEBUG, DISTRAPP,
+ "%s:Packet loss due to full out ring\n",
+ __func__);
+ while (sent < nb_ret)
+ rte_pktmbuf_free(bufs[sent++]);
+ }
+ }
+ }
+ printf("\nCore %u exiting distributor task.\n", rte_lcore_id());
+ quit_signal_work = 1;
+
+ rte_distributor_flush(d);
+ /* Unblock any returns so workers can exit */
+ rte_distributor_clear_returns(d);
+ quit_signal_rx = 1;
+ return 0;
+}
+
+
static int
lcore_tx(struct rte_ring *in_r)
{
static struct output_buffer tx_buffers[RTE_MAX_ETHPORTS];
- const uint8_t nb_ports = rte_eth_dev_count();
+ const uint16_t nb_ports = rte_eth_dev_count();
const int socket_id = rte_socket_id();
- uint8_t port;
+ uint16_t port;
for (port = 0; port < nb_ports; port++) {
/* skip ports that are not enabled */
if ((enabled_port_mask & (1 << port)) == 0)
continue;
- struct rte_mbuf *bufs[BURST_SIZE];
+ struct rte_mbuf *bufs[BURST_SIZE_TX];
const uint16_t nb_rx = rte_ring_dequeue_burst(in_r,
- (void *)bufs, BURST_SIZE);
+ (void *)bufs, BURST_SIZE_TX, NULL);
app_stats.tx.dequeue_pkts += nb_rx;
/* if we get no traffic, flush anything we have */
outbuf = &tx_buffers[outp];
outbuf->mbufs[outbuf->count++] = bufs[i];
- if (outbuf->count == BURST_SIZE)
+ if (outbuf->count == BURST_SIZE_TX)
flush_one_port(outbuf, outp);
}
}
}
+ printf("\nCore %u exiting tx task.\n", rte_lcore_id());
return 0;
}
{
printf("Exiting on signal %d\n", sig_num);
/* set quit flag for rx thread to exit */
- quit_signal_rx = 1;
+ quit_signal_dist = 1;
}
static void
for (i = 0; i < 8; i++)
buf[i] = NULL;
+ app_stats.worker_pkts[p->worker_id] = 1;
+
printf("\nCore %u acting as worker core.\n", rte_lcore_id());
- while (!quit_signal) {
+ while (!quit_signal_work) {
num = rte_distributor_get_pkt(d, id, buf, buf, num);
/* Do a little bit of work for each packet */
for (i = 0; i < num; i++) {
rte_pause();
buf[i]->port ^= xor_val;
}
+
+ app_stats.worker_pkts[p->worker_id] += num;
+ if (num > 0)
+ app_stats.worker_bursts[p->worker_id][num-1]++;
}
return 0;
}
{
struct rte_mempool *mbuf_pool;
struct rte_distributor *d;
- struct rte_ring *output_ring;
+ struct rte_ring *dist_tx_ring;
+ struct rte_ring *rx_dist_ring;
unsigned lcore_id, worker_id = 0;
unsigned nb_ports;
- uint8_t portid;
- uint8_t nb_ports_available;
+ uint16_t portid;
+ uint16_t nb_ports_available;
uint64_t t, freq;
/* catch ctrl-c so we can print on exit */
if (ret < 0)
rte_exit(EXIT_FAILURE, "Invalid distributor parameters\n");
- if (rte_lcore_count() < 3)
+ if (rte_lcore_count() < 5)
rte_exit(EXIT_FAILURE, "Error, This application needs at "
- "least 3 logical cores to run:\n"
- "1 lcore for packet RX and distribution\n"
+ "least 5 logical cores to run:\n"
+ "1 lcore for stats (can be core 0)\n"
+ "1 lcore for packet RX\n"
+ "1 lcore for distribution\n"
"1 lcore for packet TX\n"
"and at least 1 lcore for worker threads\n");
continue;
}
/* init port */
- printf("Initializing port %u... done\n", (unsigned) portid);
+ printf("Initializing port %u... done\n", portid);
if (port_init(portid, mbuf_pool) != 0)
- rte_exit(EXIT_FAILURE, "Cannot initialize port %"PRIu8"\n",
+ rte_exit(EXIT_FAILURE, "Cannot initialize port %u\n",
portid);
}
}
d = rte_distributor_create("PKT_DIST", rte_socket_id(),
- rte_lcore_count() - 2,
+ rte_lcore_count() - 4,
RTE_DIST_ALG_BURST);
if (d == NULL)
rte_exit(EXIT_FAILURE, "Cannot create distributor\n");
/*
- * scheduler ring is read only by the transmitter core, but written to
- * by multiple threads
+ * scheduler ring is read by the transmitter core, and written to
+ * by scheduler core
*/
- output_ring = rte_ring_create("Output_ring", RTE_RING_SZ,
- rte_socket_id(), RING_F_SC_DEQ);
- if (output_ring == NULL)
+ dist_tx_ring = rte_ring_create("Output_ring", SCHED_TX_RING_SZ,
+ rte_socket_id(), RING_F_SC_DEQ | RING_F_SP_ENQ);
+ if (dist_tx_ring == NULL)
+ rte_exit(EXIT_FAILURE, "Cannot create output ring\n");
+
+ rx_dist_ring = rte_ring_create("Input_ring", SCHED_RX_RING_SZ,
+ rte_socket_id(), RING_F_SC_DEQ | RING_F_SP_ENQ);
+ if (rx_dist_ring == NULL)
rte_exit(EXIT_FAILURE, "Cannot create output ring\n");
RTE_LCORE_FOREACH_SLAVE(lcore_id) {
- if (worker_id == rte_lcore_count() - 2)
+ if (worker_id == rte_lcore_count() - 3) {
+ printf("Starting distributor on lcore_id %d\n",
+ lcore_id);
+ /* distributor core */
+ struct lcore_params *p =
+ rte_malloc(NULL, sizeof(*p), 0);
+ if (!p)
+ rte_panic("malloc failure\n");
+ *p = (struct lcore_params){worker_id, d,
+ rx_dist_ring, dist_tx_ring, mbuf_pool};
+ rte_eal_remote_launch(
+ (lcore_function_t *)lcore_distributor,
+ p, lcore_id);
+ } else if (worker_id == rte_lcore_count() - 4) {
+ printf("Starting tx on worker_id %d, lcore_id %d\n",
+ worker_id, lcore_id);
+ /* tx core */
rte_eal_remote_launch((lcore_function_t *)lcore_tx,
- output_ring, lcore_id);
- else {
+ dist_tx_ring, lcore_id);
+ } else if (worker_id == rte_lcore_count() - 2) {
+ printf("Starting rx on worker_id %d, lcore_id %d\n",
+ worker_id, lcore_id);
+ /* rx core */
struct lcore_params *p =
rte_malloc(NULL, sizeof(*p), 0);
if (!p)
rte_panic("malloc failure\n");
- *p = (struct lcore_params){worker_id, d, output_ring, mbuf_pool};
+ *p = (struct lcore_params){worker_id, d, rx_dist_ring,
+ dist_tx_ring, mbuf_pool};
+ rte_eal_remote_launch((lcore_function_t *)lcore_rx,
+ p, lcore_id);
+ } else {
+ printf("Starting worker on worker_id %d, lcore_id %d\n",
+ worker_id, lcore_id);
+ struct lcore_params *p =
+ rte_malloc(NULL, sizeof(*p), 0);
+ if (!p)
+ rte_panic("malloc failure\n");
+ *p = (struct lcore_params){worker_id, d, rx_dist_ring,
+ dist_tx_ring, mbuf_pool};
rte_eal_remote_launch((lcore_function_t *)lcore_worker,
p, lcore_id);
}
worker_id++;
}
- /* call lcore_main on master core only */
- struct lcore_params p = { 0, d, output_ring, mbuf_pool};
-
- if (lcore_rx(&p) != 0)
- return -1;
freq = rte_get_timer_hz();
t = rte_rdtsc() + freq;
git.droids-corp.org / dpdk.git / blobdiff