4 * Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
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8 * modification, are permitted provided that the following conditions
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
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14 * notice, this list of conditions and the following disclaimer in
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31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 #include <sys/types.h>
41 #include <sys/queue.h>
42 #include <netinet/in.h>
49 #include <rte_common.h>
51 #include <rte_malloc.h>
52 #include <rte_memory.h>
53 #include <rte_memcpy.h>
54 #include <rte_memzone.h>
56 #include <rte_per_lcore.h>
57 #include <rte_launch.h>
58 #include <rte_atomic.h>
59 #include <rte_cycles.h>
60 #include <rte_prefetch.h>
61 #include <rte_lcore.h>
62 #include <rte_per_lcore.h>
63 #include <rte_branch_prediction.h>
64 #include <rte_interrupts.h>
66 #include <rte_random.h>
67 #include <rte_debug.h>
68 #include <rte_ether.h>
69 #include <rte_ethdev.h>
70 #include <rte_mempool.h>
73 #define RTE_LOGTYPE_LSI RTE_LOGTYPE_USER1
77 #define MAX_PKT_BURST 32
78 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
81 * Configurable number of RX/TX ring descriptors
83 #define RTE_TEST_RX_DESC_DEFAULT 128
84 #define RTE_TEST_TX_DESC_DEFAULT 512
85 static uint16_t nb_rxd
= RTE_TEST_RX_DESC_DEFAULT
;
86 static uint16_t nb_txd
= RTE_TEST_TX_DESC_DEFAULT
;
88 /* ethernet addresses of ports */
89 static struct ether_addr lsi_ports_eth_addr
[RTE_MAX_ETHPORTS
];
91 /* mask of enabled ports */
92 static uint32_t lsi_enabled_port_mask
= 0;
94 static unsigned int lsi_rx_queue_per_lcore
= 1;
96 /* destination port for L2 forwarding */
97 static unsigned lsi_dst_ports
[RTE_MAX_ETHPORTS
] = {0};
99 #define MAX_PKT_BURST 32
101 #define MAX_RX_QUEUE_PER_LCORE 16
102 #define MAX_TX_QUEUE_PER_PORT 16
103 struct lcore_queue_conf
{
105 unsigned rx_port_list
[MAX_RX_QUEUE_PER_LCORE
];
106 unsigned tx_queue_id
;
107 } __rte_cache_aligned
;
108 struct lcore_queue_conf lcore_queue_conf
[RTE_MAX_LCORE
];
110 struct rte_eth_dev_tx_buffer
*tx_buffer
[RTE_MAX_ETHPORTS
];
112 static const struct rte_eth_conf port_conf
= {
115 .header_split
= 0, /**< Header Split disabled */
116 .hw_ip_checksum
= 0, /**< IP checksum offload disabled */
117 .hw_vlan_filter
= 0, /**< VLAN filtering disabled */
118 .jumbo_frame
= 0, /**< Jumbo Frame Support disabled */
119 .hw_strip_crc
= 1, /**< CRC stripped by hardware */
122 .mq_mode
= ETH_MQ_TX_NONE
,
125 .lsc
= 1, /**< lsc interrupt feature enabled */
129 struct rte_mempool
* lsi_pktmbuf_pool
= NULL
;
131 /* Per-port statistics struct */
132 struct lsi_port_statistics
{
136 } __rte_cache_aligned
;
137 struct lsi_port_statistics port_statistics
[RTE_MAX_ETHPORTS
];
139 /* A tsc-based timer responsible for triggering statistics printout */
140 #define TIMER_MILLISECOND 2000000ULL /* around 1ms at 2 Ghz */
141 #define MAX_TIMER_PERIOD 86400 /* 1 day max */
142 static int64_t timer_period
= 10 * TIMER_MILLISECOND
* 1000; /* default period is 10 seconds */
144 /* Print out statistics on packets dropped */
148 struct rte_eth_link link
;
149 uint64_t total_packets_dropped
, total_packets_tx
, total_packets_rx
;
152 total_packets_dropped
= 0;
153 total_packets_tx
= 0;
154 total_packets_rx
= 0;
156 const char clr
[] = { 27, '[', '2', 'J', '\0' };
157 const char topLeft
[] = { 27, '[', '1', ';', '1', 'H','\0' };
159 /* Clear screen and move to top left */
160 printf("%s%s", clr
, topLeft
);
162 printf("\nPort statistics ====================================");
164 for (portid
= 0; portid
< RTE_MAX_ETHPORTS
; portid
++) {
165 /* skip ports that are not enabled */
166 if ((lsi_enabled_port_mask
& (1 << portid
)) == 0)
169 memset(&link
, 0, sizeof(link
));
170 rte_eth_link_get_nowait((uint8_t)portid
, &link
);
171 printf("\nStatistics for port %u ------------------------------"
172 "\nLink status: %25s"
174 "\nLink duplex: %25s"
175 "\nPackets sent: %24"PRIu64
176 "\nPackets received: %20"PRIu64
177 "\nPackets dropped: %21"PRIu64
,
179 (link
.link_status
? "Link up" : "Link down"),
180 (unsigned)link
.link_speed
,
181 (link
.link_duplex
== ETH_LINK_FULL_DUPLEX
? \
182 "full-duplex" : "half-duplex"),
183 port_statistics
[portid
].tx
,
184 port_statistics
[portid
].rx
,
185 port_statistics
[portid
].dropped
);
187 total_packets_dropped
+= port_statistics
[portid
].dropped
;
188 total_packets_tx
+= port_statistics
[portid
].tx
;
189 total_packets_rx
+= port_statistics
[portid
].rx
;
191 printf("\nAggregate statistics ==============================="
192 "\nTotal packets sent: %18"PRIu64
193 "\nTotal packets received: %14"PRIu64
194 "\nTotal packets dropped: %15"PRIu64
,
197 total_packets_dropped
);
198 printf("\n====================================================\n");
202 lsi_simple_forward(struct rte_mbuf
*m
, unsigned portid
)
204 struct ether_hdr
*eth
;
206 unsigned dst_port
= lsi_dst_ports
[portid
];
208 struct rte_eth_dev_tx_buffer
*buffer
;
210 eth
= rte_pktmbuf_mtod(m
, struct ether_hdr
*);
212 /* 02:00:00:00:00:xx */
213 tmp
= ð
->d_addr
.addr_bytes
[0];
214 *((uint64_t *)tmp
) = 0x000000000002 + ((uint64_t)dst_port
<< 40);
217 ether_addr_copy(&lsi_ports_eth_addr
[dst_port
], ð
->s_addr
);
219 buffer
= tx_buffer
[dst_port
];
220 sent
= rte_eth_tx_buffer(dst_port
, 0, buffer
, m
);
222 port_statistics
[dst_port
].tx
+= sent
;
225 /* main processing loop */
229 struct rte_mbuf
*pkts_burst
[MAX_PKT_BURST
];
233 uint64_t prev_tsc
, diff_tsc
, cur_tsc
, timer_tsc
;
234 unsigned i
, j
, portid
, nb_rx
;
235 struct lcore_queue_conf
*qconf
;
236 const uint64_t drain_tsc
= (rte_get_tsc_hz() + US_PER_S
- 1) / US_PER_S
*
238 struct rte_eth_dev_tx_buffer
*buffer
;
243 lcore_id
= rte_lcore_id();
244 qconf
= &lcore_queue_conf
[lcore_id
];
246 if (qconf
->n_rx_port
== 0) {
247 RTE_LOG(INFO
, LSI
, "lcore %u has nothing to do\n", lcore_id
);
251 RTE_LOG(INFO
, LSI
, "entering main loop on lcore %u\n", lcore_id
);
253 for (i
= 0; i
< qconf
->n_rx_port
; i
++) {
255 portid
= qconf
->rx_port_list
[i
];
256 RTE_LOG(INFO
, LSI
, " -- lcoreid=%u portid=%u\n", lcore_id
,
262 cur_tsc
= rte_rdtsc();
265 * TX burst queue drain
267 diff_tsc
= cur_tsc
- prev_tsc
;
268 if (unlikely(diff_tsc
> drain_tsc
)) {
270 for (i
= 0; i
< qconf
->n_rx_port
; i
++) {
272 portid
= lsi_dst_ports
[qconf
->rx_port_list
[i
]];
273 buffer
= tx_buffer
[portid
];
275 sent
= rte_eth_tx_buffer_flush(portid
, 0, buffer
);
277 port_statistics
[portid
].tx
+= sent
;
281 /* if timer is enabled */
282 if (timer_period
> 0) {
284 /* advance the timer */
285 timer_tsc
+= diff_tsc
;
287 /* if timer has reached its timeout */
288 if (unlikely(timer_tsc
>= (uint64_t) timer_period
)) {
290 /* do this only on master core */
291 if (lcore_id
== rte_get_master_lcore()) {
293 /* reset the timer */
303 * Read packet from RX queues
305 for (i
= 0; i
< qconf
->n_rx_port
; i
++) {
307 portid
= qconf
->rx_port_list
[i
];
308 nb_rx
= rte_eth_rx_burst((uint8_t) portid
, 0,
309 pkts_burst
, MAX_PKT_BURST
);
311 port_statistics
[portid
].rx
+= nb_rx
;
313 for (j
= 0; j
< nb_rx
; j
++) {
315 rte_prefetch0(rte_pktmbuf_mtod(m
, void *));
316 lsi_simple_forward(m
, portid
);
323 lsi_launch_one_lcore(__attribute__((unused
)) void *dummy
)
331 lsi_usage(const char *prgname
)
333 printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n"
334 " -p PORTMASK: hexadecimal bitmask of ports to configure\n"
335 " -q NQ: number of queue (=ports) per lcore (default is 1)\n"
336 " -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n",
341 lsi_parse_portmask(const char *portmask
)
346 /* parse hexadecimal string */
347 pm
= strtoul(portmask
, &end
, 16);
348 if ((portmask
[0] == '\0') || (end
== NULL
) || (*end
!= '\0'))
358 lsi_parse_nqueue(const char *q_arg
)
363 /* parse hexadecimal string */
364 n
= strtoul(q_arg
, &end
, 10);
365 if ((q_arg
[0] == '\0') || (end
== NULL
) || (*end
!= '\0'))
369 if (n
>= MAX_RX_QUEUE_PER_LCORE
)
376 lsi_parse_timer_period(const char *q_arg
)
381 /* parse number string */
382 n
= strtol(q_arg
, &end
, 10);
383 if ((q_arg
[0] == '\0') || (end
== NULL
) || (*end
!= '\0'))
385 if (n
>= MAX_TIMER_PERIOD
)
391 /* Parse the argument given in the command line of the application */
393 lsi_parse_args(int argc
, char **argv
)
398 char *prgname
= argv
[0];
399 static struct option lgopts
[] = {
405 while ((opt
= getopt_long(argc
, argvopt
, "p:q:T:",
406 lgopts
, &option_index
)) != EOF
) {
411 lsi_enabled_port_mask
= lsi_parse_portmask(optarg
);
412 if (lsi_enabled_port_mask
== 0) {
413 printf("invalid portmask\n");
421 lsi_rx_queue_per_lcore
= lsi_parse_nqueue(optarg
);
422 if (lsi_rx_queue_per_lcore
== 0) {
423 printf("invalid queue number\n");
431 timer_period
= lsi_parse_timer_period(optarg
) * 1000 * TIMER_MILLISECOND
;
432 if (timer_period
< 0) {
433 printf("invalid timer period\n");
451 argv
[optind
-1] = prgname
;
454 optind
= 1; /* reset getopt lib */
459 * It will be called as the callback for specified port after a LSI interrupt
460 * has been fully handled. This callback needs to be implemented carefully as
461 * it will be called in the interrupt host thread which is different from the
462 * application main thread.
469 * Pointer to(address of) the parameters.
475 lsi_event_callback(uint8_t port_id
, enum rte_eth_event_type type
, void *param
)
477 struct rte_eth_link link
;
481 printf("\n\nIn registered callback...\n");
482 printf("Event type: %s\n", type
== RTE_ETH_EVENT_INTR_LSC
? "LSC interrupt" : "unknown event");
483 rte_eth_link_get_nowait(port_id
, &link
);
484 if (link
.link_status
) {
485 printf("Port %d Link Up - speed %u Mbps - %s\n\n",
486 port_id
, (unsigned)link
.link_speed
,
487 (link
.link_duplex
== ETH_LINK_FULL_DUPLEX
) ?
488 ("full-duplex") : ("half-duplex"));
490 printf("Port %d Link Down\n\n", port_id
);
493 /* Check the link status of all ports in up to 9s, and print them finally */
495 check_all_ports_link_status(uint8_t port_num
, uint32_t port_mask
)
497 #define CHECK_INTERVAL 100 /* 100ms */
498 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
499 uint8_t portid
, count
, all_ports_up
, print_flag
= 0;
500 struct rte_eth_link link
;
502 printf("\nChecking link status");
504 for (count
= 0; count
<= MAX_CHECK_TIME
; count
++) {
506 for (portid
= 0; portid
< port_num
; portid
++) {
507 if ((port_mask
& (1 << portid
)) == 0)
509 memset(&link
, 0, sizeof(link
));
510 rte_eth_link_get_nowait(portid
, &link
);
511 /* print link status if flag set */
512 if (print_flag
== 1) {
513 if (link
.link_status
)
514 printf("Port %d Link Up - speed %u "
515 "Mbps - %s\n", (uint8_t)portid
,
516 (unsigned)link
.link_speed
,
517 (link
.link_duplex
== ETH_LINK_FULL_DUPLEX
) ?
518 ("full-duplex") : ("half-duplex\n"));
520 printf("Port %d Link Down\n",
524 /* clear all_ports_up flag if any link down */
525 if (link
.link_status
== ETH_LINK_DOWN
) {
530 /* after finally printing all link status, get out */
534 if (all_ports_up
== 0) {
537 rte_delay_ms(CHECK_INTERVAL
);
540 /* set the print_flag if all ports up or timeout */
541 if (all_ports_up
== 1 || count
== (MAX_CHECK_TIME
- 1)) {
549 main(int argc
, char **argv
)
551 struct lcore_queue_conf
*qconf
;
552 struct rte_eth_dev_info dev_info
;
555 uint8_t portid
, portid_last
= 0;
556 unsigned lcore_id
, rx_lcore_id
;
557 unsigned nb_ports_in_mask
= 0;
560 ret
= rte_eal_init(argc
, argv
);
562 rte_exit(EXIT_FAILURE
, "rte_eal_init failed");
566 /* parse application arguments (after the EAL ones) */
567 ret
= lsi_parse_args(argc
, argv
);
569 rte_exit(EXIT_FAILURE
, "Invalid arguments");
571 /* create the mbuf pool */
573 rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF
, 32, 0,
574 RTE_MBUF_DEFAULT_BUF_SIZE
, rte_socket_id());
575 if (lsi_pktmbuf_pool
== NULL
)
576 rte_panic("Cannot init mbuf pool\n");
578 nb_ports
= rte_eth_dev_count();
580 rte_panic("No Ethernet port - bye\n");
583 * Each logical core is assigned a dedicated TX queue on each port.
585 for (portid
= 0; portid
< nb_ports
; portid
++) {
586 /* skip ports that are not enabled */
587 if ((lsi_enabled_port_mask
& (1 << portid
)) == 0)
590 /* save the destination port id */
591 if (nb_ports_in_mask
% 2) {
592 lsi_dst_ports
[portid
] = portid_last
;
593 lsi_dst_ports
[portid_last
] = portid
;
596 portid_last
= portid
;
600 rte_eth_dev_info_get(portid
, &dev_info
);
602 if (nb_ports_in_mask
< 2 || nb_ports_in_mask
% 2)
603 rte_exit(EXIT_FAILURE
, "Current enabled port number is %u, "
604 "but it should be even and at least 2\n",
608 qconf
= &lcore_queue_conf
[rx_lcore_id
];
610 /* Initialize the port/queue configuration of each logical core */
611 for (portid
= 0; portid
< nb_ports
; portid
++) {
612 /* skip ports that are not enabled */
613 if ((lsi_enabled_port_mask
& (1 << portid
)) == 0)
616 /* get the lcore_id for this port */
617 while (rte_lcore_is_enabled(rx_lcore_id
) == 0 ||
618 lcore_queue_conf
[rx_lcore_id
].n_rx_port
==
619 lsi_rx_queue_per_lcore
) {
622 if (rx_lcore_id
>= RTE_MAX_LCORE
)
623 rte_exit(EXIT_FAILURE
, "Not enough cores\n");
625 if (qconf
!= &lcore_queue_conf
[rx_lcore_id
])
626 /* Assigned a new logical core in the loop above. */
627 qconf
= &lcore_queue_conf
[rx_lcore_id
];
629 qconf
->rx_port_list
[qconf
->n_rx_port
] = portid
;
631 printf("Lcore %u: RX port %u\n",rx_lcore_id
, (unsigned) portid
);
634 /* Initialise each port */
635 for (portid
= 0; portid
< nb_ports
; portid
++) {
636 /* skip ports that are not enabled */
637 if ((lsi_enabled_port_mask
& (1 << portid
)) == 0) {
638 printf("Skipping disabled port %u\n", (unsigned) portid
);
642 printf("Initializing port %u... ", (unsigned) portid
);
644 ret
= rte_eth_dev_configure(portid
, 1, 1, &port_conf
);
646 rte_exit(EXIT_FAILURE
, "Cannot configure device: err=%d, port=%u\n",
647 ret
, (unsigned) portid
);
649 /* register lsi interrupt callback, need to be after
650 * rte_eth_dev_configure(). if (intr_conf.lsc == 0), no
651 * lsc interrupt will be present, and below callback to
652 * be registered will never be called.
654 rte_eth_dev_callback_register(portid
,
655 RTE_ETH_EVENT_INTR_LSC
, lsi_event_callback
, NULL
);
657 rte_eth_macaddr_get(portid
,
658 &lsi_ports_eth_addr
[portid
]);
660 /* init one RX queue */
662 ret
= rte_eth_rx_queue_setup(portid
, 0, nb_rxd
,
663 rte_eth_dev_socket_id(portid
),
667 rte_exit(EXIT_FAILURE
, "rte_eth_rx_queue_setup: err=%d, port=%u\n",
668 ret
, (unsigned) portid
);
670 /* init one TX queue logical core on each port */
672 ret
= rte_eth_tx_queue_setup(portid
, 0, nb_txd
,
673 rte_eth_dev_socket_id(portid
),
676 rte_exit(EXIT_FAILURE
, "rte_eth_tx_queue_setup: err=%d,port=%u\n",
677 ret
, (unsigned) portid
);
679 /* Initialize TX buffers */
680 tx_buffer
[portid
] = rte_zmalloc_socket("tx_buffer",
681 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST
), 0,
682 rte_eth_dev_socket_id(portid
));
683 if (tx_buffer
[portid
] == NULL
)
684 rte_exit(EXIT_FAILURE
, "Cannot allocate buffer for tx on port %u\n",
687 rte_eth_tx_buffer_init(tx_buffer
[portid
], MAX_PKT_BURST
);
689 ret
= rte_eth_tx_buffer_set_err_callback(tx_buffer
[portid
],
690 rte_eth_tx_buffer_count_callback
,
691 &port_statistics
[portid
].dropped
);
693 rte_exit(EXIT_FAILURE
, "Cannot set error callback for "
694 "tx buffer on port %u\n", (unsigned) portid
);
697 ret
= rte_eth_dev_start(portid
);
699 rte_exit(EXIT_FAILURE
, "rte_eth_dev_start: err=%d, port=%u\n",
700 ret
, (unsigned) portid
);
703 rte_eth_promiscuous_enable(portid
);
705 printf("Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n",
707 lsi_ports_eth_addr
[portid
].addr_bytes
[0],
708 lsi_ports_eth_addr
[portid
].addr_bytes
[1],
709 lsi_ports_eth_addr
[portid
].addr_bytes
[2],
710 lsi_ports_eth_addr
[portid
].addr_bytes
[3],
711 lsi_ports_eth_addr
[portid
].addr_bytes
[4],
712 lsi_ports_eth_addr
[portid
].addr_bytes
[5]);
714 /* initialize port stats */
715 memset(&port_statistics
, 0, sizeof(port_statistics
));
718 check_all_ports_link_status(nb_ports
, lsi_enabled_port_mask
);
720 /* launch per-lcore init on every lcore */
721 rte_eal_mp_remote_launch(lsi_launch_one_lcore
, NULL
, CALL_MASTER
);
722 RTE_LCORE_FOREACH_SLAVE(lcore_id
) {
723 if (rte_eal_wait_lcore(lcore_id
) < 0)