examples: add flush after stats printing
[dpdk.git] / examples / ioat / ioatfwd.c
index 2fc0b11..b66ee73 100644 (file)
@@ -48,6 +48,23 @@ struct rxtx_transmission_config {
        uint16_t nb_lcores;
 };
 
+/* per-port statistics struct */
+struct ioat_port_statistics {
+       uint64_t rx[RTE_MAX_ETHPORTS];
+       uint64_t tx[RTE_MAX_ETHPORTS];
+       uint64_t tx_dropped[RTE_MAX_ETHPORTS];
+       uint64_t copy_dropped[RTE_MAX_ETHPORTS];
+};
+struct ioat_port_statistics port_statistics;
+
+struct total_statistics {
+       uint64_t total_packets_dropped;
+       uint64_t total_packets_tx;
+       uint64_t total_packets_rx;
+       uint64_t total_successful_enqueues;
+       uint64_t total_failed_enqueues;
+};
+
 typedef enum copy_mode_t {
 #define COPY_MODE_SW "sw"
        COPY_MODE_SW_NUM,
@@ -89,6 +106,209 @@ static struct rte_ether_addr ioat_ports_eth_addr[RTE_MAX_ETHPORTS];
 static struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
 struct rte_mempool *ioat_pktmbuf_pool;
 
+/* Print out statistics for one port. */
+static void
+print_port_stats(uint16_t port_id)
+{
+       printf("\nStatistics for port %u ------------------------------"
+               "\nPackets sent: %34"PRIu64
+               "\nPackets received: %30"PRIu64
+               "\nPackets dropped on tx: %25"PRIu64
+               "\nPackets dropped on copy: %23"PRIu64,
+               port_id,
+               port_statistics.tx[port_id],
+               port_statistics.rx[port_id],
+               port_statistics.tx_dropped[port_id],
+               port_statistics.copy_dropped[port_id]);
+}
+
+/* Print out statistics for one IOAT rawdev device. */
+static void
+print_rawdev_stats(uint32_t dev_id, uint64_t *xstats,
+       unsigned int *ids_xstats, uint16_t nb_xstats,
+       struct rte_rawdev_xstats_name *names_xstats)
+{
+       uint16_t i;
+
+       printf("\nIOAT channel %u", dev_id);
+       for (i = 0; i < nb_xstats; i++)
+               printf("\n\t %s: %*"PRIu64,
+                       names_xstats[ids_xstats[i]].name,
+                       (int)(37 - strlen(names_xstats[ids_xstats[i]].name)),
+                       xstats[i]);
+}
+
+static void
+print_total_stats(struct total_statistics *ts)
+{
+       printf("\nAggregate statistics ==============================="
+               "\nTotal packets Tx: %24"PRIu64" [pps]"
+               "\nTotal packets Rx: %24"PRIu64" [pps]"
+               "\nTotal packets dropped: %19"PRIu64" [pps]",
+               ts->total_packets_tx,
+               ts->total_packets_rx,
+               ts->total_packets_dropped);
+
+       if (copy_mode == COPY_MODE_IOAT_NUM) {
+               printf("\nTotal IOAT successful enqueues: %8"PRIu64" [enq/s]"
+                       "\nTotal IOAT failed enqueues: %12"PRIu64" [enq/s]",
+                       ts->total_successful_enqueues,
+                       ts->total_failed_enqueues);
+       }
+
+       printf("\n====================================================\n");
+}
+
+/* Print out statistics on packets dropped. */
+static void
+print_stats(char *prgname)
+{
+       struct total_statistics ts, delta_ts;
+       uint32_t i, port_id, dev_id;
+       struct rte_rawdev_xstats_name *names_xstats;
+       uint64_t *xstats;
+       unsigned int *ids_xstats, nb_xstats;
+       char status_string[120]; /* to print at the top of the output */
+       int status_strlen;
+       int ret;
+
+       const char clr[] = { 27, '[', '2', 'J', '\0' };
+       const char topLeft[] = { 27, '[', '1', ';', '1', 'H', '\0' };
+
+       status_strlen = snprintf(status_string, sizeof(status_string),
+               "%s, ", prgname);
+       status_strlen += snprintf(status_string + status_strlen,
+               sizeof(status_string) - status_strlen,
+               "Worker Threads = %d, ",
+               rte_lcore_count() > 2 ? 2 : 1);
+       status_strlen += snprintf(status_string + status_strlen,
+               sizeof(status_string) - status_strlen,
+               "Copy Mode = %s,\n", copy_mode == COPY_MODE_SW_NUM ?
+               COPY_MODE_SW : COPY_MODE_IOAT);
+       status_strlen += snprintf(status_string + status_strlen,
+               sizeof(status_string) - status_strlen,
+               "Updating MAC = %s, ", mac_updating ?
+               "enabled" : "disabled");
+       status_strlen += snprintf(status_string + status_strlen,
+               sizeof(status_string) - status_strlen,
+               "Rx Queues = %d, ", nb_queues);
+       status_strlen += snprintf(status_string + status_strlen,
+               sizeof(status_string) - status_strlen,
+               "Ring Size = %d\n", ring_size);
+
+       /* Allocate memory for xstats names and values */
+       ret = rte_rawdev_xstats_names_get(
+               cfg.ports[0].ioat_ids[0], NULL, 0);
+       if (ret < 0)
+               return;
+       nb_xstats = (unsigned int)ret;
+
+       names_xstats = malloc(sizeof(*names_xstats) * nb_xstats);
+       if (names_xstats == NULL) {
+               rte_exit(EXIT_FAILURE,
+                       "Error allocating xstat names memory\n");
+       }
+       rte_rawdev_xstats_names_get(cfg.ports[0].ioat_ids[0],
+               names_xstats, nb_xstats);
+
+       ids_xstats = malloc(sizeof(*ids_xstats) * 2);
+       if (ids_xstats == NULL) {
+               rte_exit(EXIT_FAILURE,
+                       "Error allocating xstat ids_xstats memory\n");
+       }
+
+       xstats = malloc(sizeof(*xstats) * 2);
+       if (xstats == NULL) {
+               rte_exit(EXIT_FAILURE,
+                       "Error allocating xstat memory\n");
+       }
+
+       /* Get failed/successful enqueues stats index */
+       ids_xstats[0] = ids_xstats[1] = nb_xstats;
+       for (i = 0; i < nb_xstats; i++) {
+               if (!strcmp(names_xstats[i].name, "failed_enqueues"))
+                       ids_xstats[0] = i;
+               else if (!strcmp(names_xstats[i].name, "successful_enqueues"))
+                       ids_xstats[1] = i;
+               if (ids_xstats[0] < nb_xstats && ids_xstats[1] < nb_xstats)
+                       break;
+       }
+       if (ids_xstats[0] == nb_xstats || ids_xstats[1] == nb_xstats) {
+               rte_exit(EXIT_FAILURE,
+                       "Error getting failed/successful enqueues stats index\n");
+       }
+
+       memset(&ts, 0, sizeof(struct total_statistics));
+
+       while (!force_quit) {
+               /* Sleep for 1 second each round - init sleep allows reading
+                * messages from app startup.
+                */
+               sleep(1);
+
+               /* Clear screen and move to top left */
+               printf("%s%s", clr, topLeft);
+
+               memset(&delta_ts, 0, sizeof(struct total_statistics));
+
+               printf("%s", status_string);
+
+               for (i = 0; i < cfg.nb_ports; i++) {
+                       port_id = cfg.ports[i].rxtx_port;
+                       print_port_stats(port_id);
+
+                       delta_ts.total_packets_dropped +=
+                               port_statistics.tx_dropped[port_id]
+                               + port_statistics.copy_dropped[port_id];
+                       delta_ts.total_packets_tx +=
+                               port_statistics.tx[port_id];
+                       delta_ts.total_packets_rx +=
+                               port_statistics.rx[port_id];
+
+                       if (copy_mode == COPY_MODE_IOAT_NUM) {
+                               uint32_t j;
+
+                               for (j = 0; j < cfg.ports[i].nb_queues; j++) {
+                                       dev_id = cfg.ports[i].ioat_ids[j];
+                                       rte_rawdev_xstats_get(dev_id,
+                                               ids_xstats, xstats, 2);
+
+                                       print_rawdev_stats(dev_id, xstats,
+                                               ids_xstats, 2, names_xstats);
+
+                                       delta_ts.total_failed_enqueues +=
+                                               xstats[ids_xstats[0]];
+                                       delta_ts.total_successful_enqueues +=
+                                               xstats[ids_xstats[1]];
+                               }
+                       }
+               }
+
+               delta_ts.total_packets_tx -= ts.total_packets_tx;
+               delta_ts.total_packets_rx -= ts.total_packets_rx;
+               delta_ts.total_packets_dropped -= ts.total_packets_dropped;
+               delta_ts.total_failed_enqueues -= ts.total_failed_enqueues;
+               delta_ts.total_successful_enqueues -=
+                       ts.total_successful_enqueues;
+
+               printf("\n");
+               print_total_stats(&delta_ts);
+
+               fflush(stdout);
+
+               ts.total_packets_tx += delta_ts.total_packets_tx;
+               ts.total_packets_rx += delta_ts.total_packets_rx;
+               ts.total_packets_dropped += delta_ts.total_packets_dropped;
+               ts.total_failed_enqueues += delta_ts.total_failed_enqueues;
+               ts.total_successful_enqueues +=
+                       delta_ts.total_successful_enqueues;
+       }
+
+       free(names_xstats);
+       free(xstats);
+       free(ids_xstats);
+}
+
 static void
 update_mac_addrs(struct rte_mbuf *m, uint32_t dest_portid)
 {
@@ -179,6 +399,8 @@ ioat_rx_port(struct rxtx_port_config *rx_config)
                if (nb_rx == 0)
                        continue;
 
+               port_statistics.rx[rx_config->rxtx_port] += nb_rx;
+
                if (copy_mode == COPY_MODE_IOAT_NUM) {
                        /* Perform packet hardware copy */
                        nb_enq = ioat_enqueue_packets(pkts_burst,
@@ -213,6 +435,9 @@ ioat_rx_port(struct rxtx_port_config *rx_config)
                                (void *)&pkts_burst_copy[nb_enq],
                                nb_rx - nb_enq);
                }
+
+               port_statistics.copy_dropped[rx_config->rxtx_port] +=
+                       (nb_rx - nb_enq);
        }
 }
 
@@ -237,7 +462,7 @@ ioat_tx_port(struct rxtx_port_config *tx_config)
                                MAX_PKT_BURST, NULL);
                }
 
-               if (nb_dq == 0)
+               if ((int32_t) nb_dq <= 0)
                        return;
 
                if (copy_mode == COPY_MODE_IOAT_NUM)
@@ -255,6 +480,8 @@ ioat_tx_port(struct rxtx_port_config *tx_config)
                        tx_config->rxtx_port, 0,
                        (void *)mbufs_dst, nb_dq);
 
+               port_statistics.tx[tx_config->rxtx_port] += nb_tx;
+
                /* Free any unsent packets. */
                if (unlikely(nb_tx < nb_dq))
                        rte_mempool_put_bulk(ioat_pktmbuf_pool,
@@ -472,7 +699,7 @@ check_link_status(uint32_t port_mask)
 {
        uint16_t portid;
        struct rte_eth_link link;
-       int retval = 0;
+       int ret, link_status = 0;
 
        printf("\nChecking link status\n");
        RTE_ETH_FOREACH_DEV(portid) {
@@ -480,7 +707,12 @@ check_link_status(uint32_t port_mask)
                        continue;
 
                memset(&link, 0, sizeof(link));
-               rte_eth_link_get(portid, &link);
+               ret = rte_eth_link_get(portid, &link);
+               if (ret < 0) {
+                       printf("Port %u link get failed: err=%d\n",
+                                       portid, ret);
+                       continue;
+               }
 
                /* Print link status */
                if (link.link_status) {
@@ -488,12 +720,12 @@ check_link_status(uint32_t port_mask)
                                "Port %d Link Up. Speed %u Mbps - %s\n",
                                portid, link.link_speed,
                                (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
-                               ("full-duplex") : ("half-duplex\n"));
-                       retval = 1;
+                               ("full-duplex") : ("half-duplex"));
+                       link_status = 1;
                } else
                        printf("Port %d Link Down\n", portid);
        }
-       return retval;
+       return link_status;
 }
 
 static void
@@ -526,8 +758,9 @@ assign_rawdevs(void)
                                if (rdev_id == rte_rawdev_count())
                                        goto end;
                                rte_rawdev_info_get(rdev_id++, &rdev_info);
-                       } while (strcmp(rdev_info.driver_name,
-                               IOAT_PMD_RAWDEV_NAME_STR) != 0);
+                       } while (rdev_info.driver_name == NULL ||
+                                       strcmp(rdev_info.driver_name,
+                                               IOAT_PMD_RAWDEV_NAME_STR) != 0);
 
                        cfg.ports[i].ioat_ids[j] = rdev_id - 1;
                        configure_rawdev_queue(cfg.ports[i].ioat_ids[j]);
@@ -598,7 +831,11 @@ port_init(uint16_t portid, struct rte_mempool *mbuf_pool, uint16_t nb_queues)
        /* Init port */
        printf("Initializing port %u... ", portid);
        fflush(stdout);
-       rte_eth_dev_info_get(portid, &dev_info);
+       ret = rte_eth_dev_info_get(portid, &dev_info);
+       if (ret < 0)
+               rte_exit(EXIT_FAILURE, "Cannot get device info: %s, port=%u\n",
+                       rte_strerror(-ret), portid);
+
        local_port_conf.rx_adv_conf.rss_conf.rss_hf &=
                dev_info.flow_type_rss_offloads;
        if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
@@ -653,6 +890,14 @@ port_init(uint16_t portid, struct rte_mempool *mbuf_pool, uint16_t nb_queues)
 
        rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST);
 
+       ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid],
+               rte_eth_tx_buffer_count_callback,
+               &port_statistics.tx_dropped[portid]);
+       if (ret < 0)
+               rte_exit(EXIT_FAILURE,
+                       "Cannot set error callback for tx buffer on port %u\n",
+                       portid);
+
        /* Start device */
        ret = rte_eth_dev_start(portid);
        if (ret < 0)
@@ -729,6 +974,9 @@ main(int argc, char **argv)
        RTE_ETH_FOREACH_DEV(portid)
                port_init(portid, ioat_pktmbuf_pool, nb_queues);
 
+       /* Initialize port xstats */
+       memset(&port_statistics, 0, sizeof(port_statistics));
+
        while (!check_link_status(ioat_enabled_port_mask) && !force_quit)
                sleep(1);
 
@@ -744,6 +992,8 @@ main(int argc, char **argv)
                assign_rings();
 
        start_forwarding_cores();
+       /* master core prints stats while other cores forward */
+       print_stats(argv[0]);
 
        /* force_quit is true when we get here */
        rte_eal_mp_wait_lcore();