app/testpmd: reduce memory consumption
[dpdk.git] / app / test-pmd / testpmd.c
index 4f2a431..b374682 100644 (file)
@@ -27,7 +27,6 @@
 #include <rte_log.h>
 #include <rte_debug.h>
 #include <rte_cycles.h>
-#include <rte_malloc_heap.h>
 #include <rte_memory.h>
 #include <rte_memcpy.h>
 #include <rte_launch.h>
@@ -235,6 +234,7 @@ uint8_t dcb_test = 0;
 /*
  * Configurable number of RX/TX queues.
  */
+queueid_t nb_hairpinq; /**< Number of hairpin queues per port. */
 queueid_t nb_rxq = 1; /**< Number of RX queues per port. */
 queueid_t nb_txq = 1; /**< Number of TX queues per port. */
 
@@ -339,6 +339,11 @@ uint8_t flow_isolate_all;
  */
 uint8_t no_link_check = 0; /* check by default */
 
+/*
+ * Don't automatically start all ports in interactive mode.
+ */
+uint8_t no_device_start = 0;
+
 /*
  * Enable link status change notification
  */
@@ -354,6 +359,9 @@ uint8_t hot_plug = 0; /**< hotplug disabled by default. */
 /* After attach, port setup is called on event or by iterator */
 bool setup_on_probe_event = true;
 
+/* Clear ptypes on port initialization. */
+uint8_t clear_ptypes = true;
+
 /* Pretty printing of ethdev events */
 static const char * const eth_event_desc[] = {
        [RTE_ETH_EVENT_UNKNOWN] = "unknown",
@@ -473,41 +481,6 @@ uint8_t bitrate_enabled;
 struct gro_status gro_ports[RTE_MAX_ETHPORTS];
 uint8_t gro_flush_cycles = GRO_DEFAULT_FLUSH_CYCLES;
 
-struct vxlan_encap_conf vxlan_encap_conf = {
-       .select_ipv4 = 1,
-       .select_vlan = 0,
-       .select_tos_ttl = 0,
-       .vni = "\x00\x00\x00",
-       .udp_src = 0,
-       .udp_dst = RTE_BE16(4789),
-       .ipv4_src = RTE_IPV4(127, 0, 0, 1),
-       .ipv4_dst = RTE_IPV4(255, 255, 255, 255),
-       .ipv6_src = "\x00\x00\x00\x00\x00\x00\x00\x00"
-               "\x00\x00\x00\x00\x00\x00\x00\x01",
-       .ipv6_dst = "\x00\x00\x00\x00\x00\x00\x00\x00"
-               "\x00\x00\x00\x00\x00\x00\x11\x11",
-       .vlan_tci = 0,
-       .ip_tos = 0,
-       .ip_ttl = 255,
-       .eth_src = "\x00\x00\x00\x00\x00\x00",
-       .eth_dst = "\xff\xff\xff\xff\xff\xff",
-};
-
-struct nvgre_encap_conf nvgre_encap_conf = {
-       .select_ipv4 = 1,
-       .select_vlan = 0,
-       .tni = "\x00\x00\x00",
-       .ipv4_src = RTE_IPV4(127, 0, 0, 1),
-       .ipv4_dst = RTE_IPV4(255, 255, 255, 255),
-       .ipv6_src = "\x00\x00\x00\x00\x00\x00\x00\x00"
-               "\x00\x00\x00\x00\x00\x00\x00\x01",
-       .ipv6_dst = "\x00\x00\x00\x00\x00\x00\x00\x00"
-               "\x00\x00\x00\x00\x00\x00\x11\x11",
-       .vlan_tci = 0,
-       .eth_src = "\x00\x00\x00\x00\x00\x00",
-       .eth_dst = "\xff\xff\xff\xff\xff\xff",
-};
-
 /* Forward function declarations */
 static void setup_attached_port(portid_t pi);
 static void map_port_queue_stats_mapping_registers(portid_t pi,
@@ -1006,18 +979,22 @@ check_socket_id(const unsigned int socket_id)
 queueid_t
 get_allowed_max_nb_rxq(portid_t *pid)
 {
-       queueid_t allowed_max_rxq = MAX_QUEUE_ID;
+       queueid_t allowed_max_rxq = RTE_MAX_QUEUES_PER_PORT;
+       bool max_rxq_valid = false;
        portid_t pi;
        struct rte_eth_dev_info dev_info;
 
        RTE_ETH_FOREACH_DEV(pi) {
-               rte_eth_dev_info_get(pi, &dev_info);
+               if (eth_dev_info_get_print_err(pi, &dev_info) != 0)
+                       continue;
+
+               max_rxq_valid = true;
                if (dev_info.max_rx_queues < allowed_max_rxq) {
                        allowed_max_rxq = dev_info.max_rx_queues;
                        *pid = pi;
                }
        }
-       return allowed_max_rxq;
+       return max_rxq_valid ? allowed_max_rxq : 0;
 }
 
 /*
@@ -1052,18 +1029,22 @@ check_nb_rxq(queueid_t rxq)
 queueid_t
 get_allowed_max_nb_txq(portid_t *pid)
 {
-       queueid_t allowed_max_txq = MAX_QUEUE_ID;
+       queueid_t allowed_max_txq = RTE_MAX_QUEUES_PER_PORT;
+       bool max_txq_valid = false;
        portid_t pi;
        struct rte_eth_dev_info dev_info;
 
        RTE_ETH_FOREACH_DEV(pi) {
-               rte_eth_dev_info_get(pi, &dev_info);
+               if (eth_dev_info_get_print_err(pi, &dev_info) != 0)
+                       continue;
+
+               max_txq_valid = true;
                if (dev_info.max_tx_queues < allowed_max_txq) {
                        allowed_max_txq = dev_info.max_tx_queues;
                        *pid = pi;
                }
        }
-       return allowed_max_txq;
+       return max_txq_valid ? allowed_max_txq : 0;
 }
 
 /*
@@ -1090,6 +1071,53 @@ check_nb_txq(queueid_t txq)
        return 0;
 }
 
+/*
+ * Get the allowed maximum number of hairpin queues.
+ * *pid return the port id which has minimal value of
+ * max_hairpin_queues in all ports.
+ */
+queueid_t
+get_allowed_max_nb_hairpinq(portid_t *pid)
+{
+       queueid_t allowed_max_hairpinq = RTE_MAX_QUEUES_PER_PORT;
+       portid_t pi;
+       struct rte_eth_hairpin_cap cap;
+
+       RTE_ETH_FOREACH_DEV(pi) {
+               if (rte_eth_dev_hairpin_capability_get(pi, &cap) != 0) {
+                       *pid = pi;
+                       return 0;
+               }
+               if (cap.max_nb_queues < allowed_max_hairpinq) {
+                       allowed_max_hairpinq = cap.max_nb_queues;
+                       *pid = pi;
+               }
+       }
+       return allowed_max_hairpinq;
+}
+
+/*
+ * Check input hairpin is valid or not.
+ * If input hairpin is not greater than any of maximum number
+ * of hairpin queues of all ports, it is valid.
+ * if valid, return 0, else return -1
+ */
+int
+check_nb_hairpinq(queueid_t hairpinq)
+{
+       queueid_t allowed_max_hairpinq;
+       portid_t pid = 0;
+
+       allowed_max_hairpinq = get_allowed_max_nb_hairpinq(&pid);
+       if (hairpinq > allowed_max_hairpinq) {
+               printf("Fail: input hairpin (%u) can't be greater "
+                      "than max_hairpin_queues (%u) of port %u\n",
+                      hairpinq, allowed_max_hairpinq, pid);
+               return -1;
+       }
+       return 0;
+}
+
 static void
 init_config(void)
 {
@@ -1101,7 +1129,10 @@ init_config(void)
        uint8_t port_per_socket[RTE_MAX_NUMA_NODES];
        struct rte_gro_param gro_param;
        uint32_t gso_types;
+       uint16_t data_size;
+       bool warning = 0;
        int k;
+       int ret;
 
        memset(port_per_socket,0,RTE_MAX_NUMA_NODES);
 
@@ -1129,16 +1160,16 @@ init_config(void)
                /* Apply default TxRx configuration for all ports */
                port->dev_conf.txmode = tx_mode;
                port->dev_conf.rxmode = rx_mode;
-               rte_eth_dev_info_get(pid, &port->dev_info);
+
+               ret = eth_dev_info_get_print_err(pid, &port->dev_info);
+               if (ret != 0)
+                       rte_exit(EXIT_FAILURE,
+                                "rte_eth_dev_info_get() failed\n");
 
                if (!(port->dev_info.tx_offload_capa &
                      DEV_TX_OFFLOAD_MBUF_FAST_FREE))
                        port->dev_conf.txmode.offloads &=
                                ~DEV_TX_OFFLOAD_MBUF_FAST_FREE;
-               if (!(port->dev_info.tx_offload_capa &
-                       DEV_TX_OFFLOAD_MATCH_METADATA))
-                       port->dev_conf.txmode.offloads &=
-                               ~DEV_TX_OFFLOAD_MATCH_METADATA;
                if (numa_support) {
                        if (port_numa[pid] != NUMA_NO_CONFIG)
                                port_per_socket[port_numa[pid]]++;
@@ -1168,8 +1199,28 @@ init_config(void)
                port->need_reconfig = 1;
                port->need_reconfig_queues = 1;
                port->tx_metadata = 0;
+
+               /* Check for maximum number of segments per MTU. Accordingly
+                * update the mbuf data size.
+                */
+               if (port->dev_info.rx_desc_lim.nb_mtu_seg_max != UINT16_MAX &&
+                               port->dev_info.rx_desc_lim.nb_mtu_seg_max != 0) {
+                       data_size = rx_mode.max_rx_pkt_len /
+                               port->dev_info.rx_desc_lim.nb_mtu_seg_max;
+
+                       if ((data_size + RTE_PKTMBUF_HEADROOM) >
+                                                       mbuf_data_size) {
+                               mbuf_data_size = data_size +
+                                                RTE_PKTMBUF_HEADROOM;
+                               warning = 1;
+                       }
+               }
        }
 
+       if (warning)
+               TESTPMD_LOG(WARNING, "Configured mbuf size %hu\n",
+                           mbuf_data_size);
+
        /*
         * Create pools of mbuf.
         * If NUMA support is disabled, create a single pool of mbuf in
@@ -1268,10 +1319,14 @@ void
 reconfig(portid_t new_port_id, unsigned socket_id)
 {
        struct rte_port *port;
+       int ret;
 
        /* Reconfiguration of Ethernet ports. */
        port = &ports[new_port_id];
-       rte_eth_dev_info_get(new_port_id, &port->dev_info);
+
+       ret = eth_dev_info_get_print_err(new_port_id, &port->dev_info);
+       if (ret != 0)
+               return;
 
        /* set flag to initialize port/queue */
        port->need_reconfig = 1;
@@ -2012,6 +2067,63 @@ port_is_started(portid_t port_id)
        return 1;
 }
 
+/* Configure the Rx and Tx hairpin queues for the selected port. */
+static int
+setup_hairpin_queues(portid_t pi)
+{
+       queueid_t qi;
+       struct rte_eth_hairpin_conf hairpin_conf = {
+               .peer_count = 1,
+       };
+       int i;
+       int diag;
+       struct rte_port *port = &ports[pi];
+
+       for (qi = nb_txq, i = 0; qi < nb_hairpinq + nb_txq; qi++) {
+               hairpin_conf.peers[0].port = pi;
+               hairpin_conf.peers[0].queue = i + nb_rxq;
+               diag = rte_eth_tx_hairpin_queue_setup
+                       (pi, qi, nb_txd, &hairpin_conf);
+               i++;
+               if (diag == 0)
+                       continue;
+
+               /* Fail to setup rx queue, return */
+               if (rte_atomic16_cmpset(&(port->port_status),
+                                       RTE_PORT_HANDLING,
+                                       RTE_PORT_STOPPED) == 0)
+                       printf("Port %d can not be set back "
+                                       "to stopped\n", pi);
+               printf("Fail to configure port %d hairpin "
+                               "queues\n", pi);
+               /* try to reconfigure queues next time */
+               port->need_reconfig_queues = 1;
+               return -1;
+       }
+       for (qi = nb_rxq, i = 0; qi < nb_hairpinq + nb_rxq; qi++) {
+               hairpin_conf.peers[0].port = pi;
+               hairpin_conf.peers[0].queue = i + nb_txq;
+               diag = rte_eth_rx_hairpin_queue_setup
+                       (pi, qi, nb_rxd, &hairpin_conf);
+               i++;
+               if (diag == 0)
+                       continue;
+
+               /* Fail to setup rx queue, return */
+               if (rte_atomic16_cmpset(&(port->port_status),
+                                       RTE_PORT_HANDLING,
+                                       RTE_PORT_STOPPED) == 0)
+                       printf("Port %d can not be set back "
+                                       "to stopped\n", pi);
+               printf("Fail to configure port %d hairpin "
+                               "queues\n", pi);
+               /* try to reconfigure queues next time */
+               port->need_reconfig_queues = 1;
+               return -1;
+       }
+       return 0;
+}
+
 int
 start_port(portid_t pid)
 {
@@ -2020,6 +2132,7 @@ start_port(portid_t pid)
        queueid_t qi;
        struct rte_port *port;
        struct rte_ether_addr mac_addr;
+       struct rte_eth_hairpin_cap cap;
 
        if (port_id_is_invalid(pid, ENABLED_WARN))
                return 0;
@@ -2052,9 +2165,16 @@ start_port(portid_t pid)
                        configure_rxtx_dump_callbacks(0);
                        printf("Configuring Port %d (socket %u)\n", pi,
                                        port->socket_id);
+                       if (nb_hairpinq > 0 &&
+                           rte_eth_dev_hairpin_capability_get(pi, &cap)) {
+                               printf("Port %d doesn't support hairpin "
+                                      "queues\n", pi);
+                               return -1;
+                       }
                        /* configure port */
-                       diag = rte_eth_dev_configure(pi, nb_rxq, nb_txq,
-                                               &(port->dev_conf));
+                       diag = rte_eth_dev_configure(pi, nb_rxq + nb_hairpinq,
+                                                    nb_txq + nb_hairpinq,
+                                                    &(port->dev_conf));
                        if (diag != 0) {
                                if (rte_atomic16_cmpset(&(port->port_status),
                                RTE_PORT_HANDLING, RTE_PORT_STOPPED) == 0)
@@ -2147,8 +2267,20 @@ start_port(portid_t pid)
                                port->need_reconfig_queues = 1;
                                return -1;
                        }
+                       /* setup hairpin queues */
+                       if (setup_hairpin_queues(pi) != 0)
+                               return -1;
                }
                configure_rxtx_dump_callbacks(verbose_level);
+               if (clear_ptypes) {
+                       diag = rte_eth_dev_set_ptypes(pi, RTE_PTYPE_UNKNOWN,
+                                       NULL, 0);
+                       if (diag < 0)
+                               printf(
+                               "Port %d: Failed to disable Ptype parsing\n",
+                               pi);
+               }
+
                /* start port */
                if (rte_eth_dev_start(pi) < 0) {
                        printf("Fail to start port %d\n", pi);
@@ -2165,8 +2297,8 @@ start_port(portid_t pid)
                        RTE_PORT_HANDLING, RTE_PORT_STARTED) == 0)
                        printf("Port %d can not be set into started\n", pi);
 
-               rte_eth_macaddr_get(pi, &mac_addr);
-               printf("Port %d: %02X:%02X:%02X:%02X:%02X:%02X\n", pi,
+               if (eth_macaddr_get_print_err(pi, &mac_addr) == 0)
+                       printf("Port %d: %02X:%02X:%02X:%02X:%02X:%02X\n", pi,
                                mac_addr.addr_bytes[0], mac_addr.addr_bytes[1],
                                mac_addr.addr_bytes[2], mac_addr.addr_bytes[3],
                                mac_addr.addr_bytes[4], mac_addr.addr_bytes[5]);
@@ -2317,6 +2449,12 @@ reset_port(portid_t pid)
        if (port_id_is_invalid(pid, ENABLED_WARN))
                return;
 
+       if ((pid == (portid_t)RTE_PORT_ALL && !all_ports_stopped()) ||
+               (pid != (portid_t)RTE_PORT_ALL && !port_is_stopped(pid))) {
+               printf("Can not reset port(s), please stop port(s) first.\n");
+               return;
+       }
+
        printf("Resetting ports...\n");
 
        RTE_ETH_FOREACH_DEV(pi) {
@@ -2361,7 +2499,7 @@ attach_port(char *identifier)
                return;
        }
 
-       if (rte_dev_probe(identifier) != 0) {
+       if (rte_dev_probe(identifier) < 0) {
                TESTPMD_LOG(ERR, "Failed to attach port %s\n", identifier);
                return;
        }
@@ -2389,13 +2527,17 @@ static void
 setup_attached_port(portid_t pi)
 {
        unsigned int socket_id;
+       int ret;
 
        socket_id = (unsigned)rte_eth_dev_socket_id(pi);
        /* if socket_id is invalid, set to the first available socket. */
        if (check_socket_id(socket_id) < 0)
                socket_id = socket_ids[0];
        reconfig(pi, socket_id);
-       rte_eth_promiscuous_enable(pi);
+       ret = rte_eth_promiscuous_enable(pi);
+       if (ret != 0)
+               printf("Error during enabling promiscuous mode for port %u: %s - ignore\n",
+                       pi, rte_strerror(-ret));
 
        ports_ids[nb_ports++] = pi;
        fwd_ports_ids[nb_fwd_ports++] = pi;
@@ -2415,6 +2557,9 @@ detach_port_device(portid_t port_id)
 
        printf("Removing a device...\n");
 
+       if (port_id_is_invalid(port_id, ENABLED_WARN))
+               return;
+
        dev = rte_eth_devices[port_id].device;
        if (dev == NULL) {
                printf("Device already removed\n");
@@ -2431,7 +2576,7 @@ detach_port_device(portid_t port_id)
                        port_flow_flush(port_id);
        }
 
-       if (rte_dev_remove(dev) != 0) {
+       if (rte_dev_remove(dev) < 0) {
                TESTPMD_LOG(ERR, "Failed to detach device %s\n", dev->name);
                return;
        }
@@ -2453,10 +2598,55 @@ detach_port_device(portid_t port_id)
        return;
 }
 
+void
+detach_device(char *identifier)
+{
+       struct rte_dev_iterator iterator;
+       struct rte_devargs da;
+       portid_t port_id;
+
+       printf("Removing a device...\n");
+
+       memset(&da, 0, sizeof(da));
+       if (rte_devargs_parsef(&da, "%s", identifier)) {
+               printf("cannot parse identifier\n");
+               if (da.args)
+                       free(da.args);
+               return;
+       }
+
+       RTE_ETH_FOREACH_MATCHING_DEV(port_id, identifier, &iterator) {
+               if (ports[port_id].port_status != RTE_PORT_CLOSED) {
+                       if (ports[port_id].port_status != RTE_PORT_STOPPED) {
+                               printf("Port %u not stopped\n", port_id);
+                               rte_eth_iterator_cleanup(&iterator);
+                               return;
+                       }
+
+                       /* sibling ports are forced to be closed */
+                       if (ports[port_id].flow_list)
+                               port_flow_flush(port_id);
+                       ports[port_id].port_status = RTE_PORT_CLOSED;
+                       printf("Port %u is now closed\n", port_id);
+               }
+       }
+
+       if (rte_eal_hotplug_remove(da.bus->name, da.name) != 0) {
+               TESTPMD_LOG(ERR, "Failed to detach device %s(%s)\n",
+                           da.name, da.bus->name);
+               return;
+       }
+
+       remove_invalid_ports();
+
+       printf("Device %s is detached\n", identifier);
+       printf("Now total ports is %d\n", nb_ports);
+       printf("Done\n");
+}
+
 void
 pmd_test_exit(void)
 {
-       struct rte_device *device;
        portid_t pt_id;
        int ret;
        int i;
@@ -2482,18 +2672,6 @@ pmd_test_exit(void)
                        printf("\nShutting down port %d...\n", pt_id);
                        fflush(stdout);
                        close_port(pt_id);
-
-                       /*
-                        * This is a workaround to fix a virtio-user issue that
-                        * requires to call clean-up routine to remove existing
-                        * socket.
-                        * This workaround valid only for testpmd, needs a fix
-                        * valid for all applications.
-                        * TODO: Implement proper resource cleanup
-                        */
-                       device = rte_eth_devices[pt_id].device;
-                       if (device && !strcmp(device->driver->name, "net_virtio_user"))
-                               detach_port_device(pt_id);
                }
        }
 
@@ -2545,6 +2723,7 @@ check_all_ports_link_status(uint32_t port_mask)
        portid_t portid;
        uint8_t count, all_ports_up, print_flag = 0;
        struct rte_eth_link link;
+       int ret;
 
        printf("Checking link statuses...\n");
        fflush(stdout);
@@ -2554,7 +2733,14 @@ check_all_ports_link_status(uint32_t port_mask)
                        if ((port_mask & (1 << portid)) == 0)
                                continue;
                        memset(&link, 0, sizeof(link));
-                       rte_eth_link_get_nowait(portid, &link);
+                       ret = rte_eth_link_get_nowait(portid, &link);
+                       if (ret < 0) {
+                               all_ports_up = 0;
+                               if (print_flag == 1)
+                                       printf("Port %u link get failed: %s\n",
+                                               portid, rte_strerror(-ret));
+                               continue;
+                       }
                        /* print link status if flag set */
                        if (print_flag == 1) {
                                if (link.link_status)
@@ -2815,7 +3001,8 @@ rxtx_port_config(struct rte_port *port)
        for (qid = 0; qid < nb_rxq; qid++) {
                offloads = port->rx_conf[qid].offloads;
                port->rx_conf[qid] = port->dev_info.default_rxconf;
-               port->rx_conf[qid].offloads |= offloads;
+               if (offloads != 0)
+                       port->rx_conf[qid].offloads = offloads;
 
                /* Check if any Rx parameters have been passed */
                if (rx_pthresh != RTE_PMD_PARAM_UNSET)
@@ -2839,7 +3026,8 @@ rxtx_port_config(struct rte_port *port)
        for (qid = 0; qid < nb_txq; qid++) {
                offloads = port->tx_conf[qid].offloads;
                port->tx_conf[qid] = port->dev_info.default_txconf;
-               port->tx_conf[qid].offloads |= offloads;
+               if (offloads != 0)
+                       port->tx_conf[qid].offloads = offloads;
 
                /* Check if any Tx parameters have been passed */
                if (tx_pthresh != RTE_PMD_PARAM_UNSET)
@@ -2866,11 +3054,16 @@ init_port_config(void)
 {
        portid_t pid;
        struct rte_port *port;
+       int ret;
 
        RTE_ETH_FOREACH_DEV(pid) {
                port = &ports[pid];
                port->dev_conf.fdir_conf = fdir_conf;
-               rte_eth_dev_info_get(pid, &port->dev_info);
+
+               ret = eth_dev_info_get_print_err(pid, &port->dev_info);
+               if (ret != 0)
+                       return;
+
                if (nb_rxq > 1) {
                        port->dev_conf.rx_adv_conf.rss_conf.rss_key = NULL;
                        port->dev_conf.rx_adv_conf.rss_conf.rss_hf =
@@ -2889,7 +3082,9 @@ init_port_config(void)
 
                rxtx_port_config(port);
 
-               rte_eth_macaddr_get(pid, &port->eth_addr);
+               ret = eth_macaddr_get_print_err(pid, &port->eth_addr);
+               if (ret != 0)
+                       return;
 
                map_port_queue_stats_mapping_registers(pid, port);
 #if defined RTE_LIBRTE_IXGBE_PMD && defined RTE_LIBRTE_IXGBE_BYPASS
@@ -3045,7 +3240,10 @@ init_port_dcb_config(portid_t pid,
        retval = rte_eth_dev_configure(pid, nb_rxq, nb_rxq, &port_conf);
        if (retval < 0)
                return retval;
-       rte_eth_dev_info_get(pid, &rte_port->dev_info);
+
+       retval = eth_dev_info_get_print_err(pid, &rte_port->dev_info);
+       if (retval != 0)
+               return retval;
 
        /* If dev_info.vmdq_pool_base is greater than 0,
         * the queue id of vmdq pools is started after pf queues.
@@ -3089,7 +3287,10 @@ init_port_dcb_config(portid_t pid,
        for (i = 0; i < RTE_DIM(vlan_tags); i++)
                rx_vft_set(pid, vlan_tags[i], 1);
 
-       rte_eth_macaddr_get(pid, &rte_port->eth_addr);
+       retval = eth_macaddr_get_print_err(pid, &rte_port->eth_addr);
+       if (retval != 0)
+               return retval;
+
        map_port_queue_stats_mapping_registers(pid, rte_port);
 
        rte_port->dcb_flag = 1;
@@ -3151,7 +3352,8 @@ signal_handler(int signum)
                rte_pdump_uninit();
 #endif
 #ifdef RTE_LIBRTE_LATENCY_STATS
-               rte_latencystats_uninit();
+               if (latencystats_enabled != 0)
+                       rte_latencystats_uninit();
 #endif
                force_quit();
                /* Set flag to indicate the force termination. */
@@ -3173,18 +3375,23 @@ main(int argc, char** argv)
        signal(SIGINT, signal_handler);
        signal(SIGTERM, signal_handler);
 
-       diag = rte_eal_init(argc, argv);
-       if (diag < 0)
-               rte_panic("Cannot init EAL\n");
-
        testpmd_logtype = rte_log_register("testpmd");
        if (testpmd_logtype < 0)
-               rte_panic("Cannot register log type");
+               rte_exit(EXIT_FAILURE, "Cannot register log type");
        rte_log_set_level(testpmd_logtype, RTE_LOG_DEBUG);
 
+       diag = rte_eal_init(argc, argv);
+       if (diag < 0)
+               rte_exit(EXIT_FAILURE, "Cannot init EAL: %s\n",
+                        rte_strerror(rte_errno));
+
+       if (rte_eal_process_type() == RTE_PROC_SECONDARY)
+               rte_exit(EXIT_FAILURE,
+                        "Secondary process type not supported.\n");
+
        ret = register_eth_event_callback();
        if (ret != 0)
-               rte_panic("Cannot register for ethdev events");
+               rte_exit(EXIT_FAILURE, "Cannot register for ethdev events");
 
 #ifdef RTE_LIBRTE_PDUMP
        /* initialize packet capture framework */
@@ -3205,8 +3412,8 @@ main(int argc, char** argv)
 
        set_def_fwd_config();
        if (nb_lcores == 0)
-               rte_panic("Empty set of forwarding logical cores - check the "
-                         "core mask supplied in the command parameters\n");
+               rte_exit(EXIT_FAILURE, "No cores defined for forwarding\n"
+                        "Check the core mask argument\n");
 
        /* Bitrate/latency stats disabled by default */
 #ifdef RTE_LIBRTE_BITRATE
@@ -3277,12 +3484,16 @@ main(int argc, char** argv)
                }
        }
 
-       if (start_port(RTE_PORT_ALL) != 0)
+       if (!no_device_start && start_port(RTE_PORT_ALL) != 0)
                rte_exit(EXIT_FAILURE, "Start ports failed\n");
 
        /* set all ports to promiscuous mode by default */
-       RTE_ETH_FOREACH_DEV(port_id)
-               rte_eth_promiscuous_enable(port_id);
+       RTE_ETH_FOREACH_DEV(port_id) {
+               ret = rte_eth_promiscuous_enable(port_id);
+               if (ret != 0)
+                       printf("Error during enabling promiscuous mode for port %u: %s - ignore\n",
+                               port_id, rte_strerror(-ret));
+       }
 
        /* Init metrics library */
        rte_metrics_init(rte_socket_id());