pcap: fix storage of name and type in queues
[dpdk.git] / lib / librte_pmd_pcap / rte_eth_pcap.c
index e988b4c..ff9b534 100644 (file)
@@ -1,14 +1,14 @@
 /*-
  *   BSD LICENSE
- * 
+ *
  *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
  *   Copyright(c) 2014 6WIND S.A.
  *   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
@@ -18,7 +18,7 @@
  *     * 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
 #include <rte_string_fns.h>
 #include <rte_cycles.h>
 #include <rte_kvargs.h>
+#include <rte_dev.h>
 
-#include "rte_eth_pcap.h"
+#include <net/if.h>
+
+#include <pcap.h>
 
 #define RTE_ETH_PCAP_SNAPSHOT_LEN 65535
 #define RTE_ETH_PCAP_SNAPLEN 4096
 #define RTE_ETH_PCAP_PROMISC 1
 #define RTE_ETH_PCAP_TIMEOUT -1
-#define ETH_PCAP_RX_PCAP_ARG   "rx_pcap"
-#define ETH_PCAP_TX_PCAP_ARG   "tx_pcap"
-#define ETH_PCAP_RX_IFACE_ARG  "rx_iface"
-#define ETH_PCAP_TX_IFACE_ARG  "tx_iface"
-#define ETH_PCAP_IFACE_ARG             "iface"
+#define ETH_PCAP_RX_PCAP_ARG  "rx_pcap"
+#define ETH_PCAP_TX_PCAP_ARG  "tx_pcap"
+#define ETH_PCAP_RX_IFACE_ARG "rx_iface"
+#define ETH_PCAP_TX_IFACE_ARG "tx_iface"
+#define ETH_PCAP_IFACE_ARG    "iface"
+
+#define ETH_PCAP_ARG_MAXLEN    64
 
 static char errbuf[PCAP_ERRBUF_SIZE];
 static struct timeval start_time;
@@ -60,9 +65,12 @@ static uint64_t hz;
 
 struct pcap_rx_queue {
        pcap_t *pcap;
+       uint8_t in_port;
        struct rte_mempool *mb_pool;
        volatile unsigned long rx_pkts;
        volatile unsigned long err_pkts;
+       char name[PATH_MAX];
+       char type[ETH_PCAP_ARG_MAXLEN];
 };
 
 struct pcap_tx_queue {
@@ -70,25 +78,32 @@ struct pcap_tx_queue {
        pcap_t *pcap;
        volatile unsigned long tx_pkts;
        volatile unsigned long err_pkts;
+       char name[PATH_MAX];
+       char type[ETH_PCAP_ARG_MAXLEN];
 };
 
 struct rx_pcaps {
        unsigned num_of_rx;
        pcap_t *pcaps[RTE_PMD_RING_MAX_RX_RINGS];
+       const char *names[RTE_PMD_RING_MAX_RX_RINGS];
+       const char *types[RTE_PMD_RING_MAX_RX_RINGS];
 };
 
 struct tx_pcaps {
        unsigned num_of_tx;
        pcap_dumper_t *dumpers[RTE_PMD_RING_MAX_TX_RINGS];
        pcap_t *pcaps[RTE_PMD_RING_MAX_RX_RINGS];
+       const char *names[RTE_PMD_RING_MAX_RX_RINGS];
+       const char *types[RTE_PMD_RING_MAX_RX_RINGS];
 };
 
 struct pmd_internals {
-       unsigned nb_rx_queues;
-       unsigned nb_tx_queues;
-
        struct pcap_rx_queue rx_queue[RTE_PMD_RING_MAX_RX_RINGS];
        struct pcap_tx_queue tx_queue[RTE_PMD_RING_MAX_TX_RINGS];
+       unsigned nb_rx_queues;
+       unsigned nb_tx_queues;
+       int if_index;
+       int single_iface;
 };
 
 const char *valid_arguments[] = {
@@ -100,6 +115,10 @@ const char *valid_arguments[] = {
        NULL
 };
 
+static int open_single_tx_pcap(const char *pcap_filename, pcap_dumper_t **dumper);
+static int open_single_rx_pcap(const char *pcap_filename, pcap_t **pcap);
+static int open_single_iface(const char *iface, pcap_t **pcap);
+
 static struct ether_addr eth_addr = { .addr_bytes = { 0, 0, 0, 0x1, 0x2, 0x3 } };
 static const char *drivername = "Pcap PMD";
 static struct rte_eth_link pmd_link = {
@@ -119,7 +138,6 @@ eth_pcap_rx(void *queue,
        const u_char *packet;
        struct rte_mbuf *mbuf;
        struct pcap_rx_queue *pcap_q = queue;
-       struct rte_pktmbuf_pool_private *mbp_priv;
        uint16_t num_rx = 0;
        uint16_t buf_size;
 
@@ -134,26 +152,27 @@ eth_pcap_rx(void *queue,
                packet = pcap_next(pcap_q->pcap, &header);
                if (unlikely(packet == NULL))
                        break;
-               else 
+               else
                        mbuf = rte_pktmbuf_alloc(pcap_q->mb_pool);
                if (unlikely(mbuf == NULL))
                        break;
 
                /* Now get the space available for data in the mbuf */
-               mbp_priv =  rte_mempool_get_priv(pcap_q->mb_pool);
-               buf_size = (uint16_t) (mbp_priv->mbuf_data_room_size -
+               buf_size = (uint16_t)(rte_pktmbuf_data_room_size(pcap_q->mb_pool) -
                                RTE_PKTMBUF_HEADROOM);
 
                if (header.len <= buf_size) {
                        /* pcap packet will fit in the mbuf, go ahead and copy */
-                       rte_memcpy(mbuf->pkt.data, packet, header.len);
-                       mbuf->pkt.data_len = (uint16_t)header.len;
-                       mbuf->pkt.pkt_len = mbuf->pkt.data_len;
-                       bufs[i] = mbuf;
+                       rte_memcpy(rte_pktmbuf_mtod(mbuf, void *), packet,
+                                       header.len);
+                       mbuf->data_len = (uint16_t)header.len;
+                       mbuf->pkt_len = mbuf->data_len;
+                       mbuf->port = pcap_q->in_port;
+                       bufs[num_rx] = mbuf;
                        num_rx++;
                } else {
                        /* pcap packet will not fit in the mbuf, so drop packet */
-                       RTE_LOG(ERR, PMD, 
+                       RTE_LOG(ERR, PMD,
                                        "PCAP packet %d bytes will not fit in mbuf (%d bytes)\n",
                                        header.len, buf_size);
                        rte_pktmbuf_free(mbuf);
@@ -195,9 +214,10 @@ eth_pcap_tx_dumper(void *queue,
        for (i = 0; i < nb_pkts; i++) {
                mbuf = bufs[i];
                calculate_timestamp(&header.ts);
-               header.len = mbuf->pkt.data_len;
+               header.len = mbuf->data_len;
                header.caplen = header.len;
-               pcap_dump((u_char*) dumper_q->dumper, &header, mbuf->pkt.data);
+               pcap_dump((u_char *)dumper_q->dumper, &header,
+                               rte_pktmbuf_mtod(mbuf, void*));
                rte_pktmbuf_free(mbuf);
                num_tx++;
        }
@@ -232,10 +252,12 @@ eth_pcap_tx(void *queue,
 
        for (i = 0; i < nb_pkts; i++) {
                mbuf = bufs[i];
-               ret = pcap_sendpacket(tx_queue->pcap, (u_char*) mbuf->pkt.data,
-                               mbuf->pkt.data_len);
-               if(likely(!ret))
-                       num_tx++;
+               ret = pcap_sendpacket(tx_queue->pcap,
+                               rte_pktmbuf_mtod(mbuf, u_char *),
+                               mbuf->data_len);
+               if (unlikely(ret != 0))
+                       break;
+               num_tx++;
                rte_pktmbuf_free(mbuf);
        }
 
@@ -247,6 +269,59 @@ eth_pcap_tx(void *queue,
 static int
 eth_dev_start(struct rte_eth_dev *dev)
 {
+       unsigned i;
+       struct pmd_internals *internals = dev->data->dev_private;
+       struct pcap_tx_queue *tx;
+       struct pcap_rx_queue *rx;
+
+       /* Special iface case. Single pcap is open and shared between tx/rx. */
+       if (internals->single_iface) {
+               tx = &internals->tx_queue[0];
+               rx = &internals->rx_queue[0];
+
+               if (!tx->pcap && strcmp(tx->type, ETH_PCAP_IFACE_ARG) == 0) {
+                       if (open_single_iface(tx->name, &tx->pcap) < 0)
+                               return -1;
+                       rx->pcap = tx->pcap;
+               }
+               goto status_up;
+       }
+
+       /* If not open already, open tx pcaps/dumpers */
+       for (i = 0; i < internals->nb_tx_queues; i++) {
+               tx = &internals->tx_queue[i];
+
+               if (!tx->dumper && strcmp(tx->type, ETH_PCAP_TX_PCAP_ARG) == 0) {
+                       if (open_single_tx_pcap(tx->name, &tx->dumper) < 0)
+                               return -1;
+               }
+
+               else if (!tx->pcap && strcmp(tx->type, ETH_PCAP_TX_IFACE_ARG) == 0) {
+                       if (open_single_iface(tx->name, &tx->pcap) < 0)
+                               return -1;
+               }
+       }
+
+       /* If not open already, open rx pcaps */
+       for (i = 0; i < internals->nb_rx_queues; i++) {
+               rx = &internals->rx_queue[i];
+
+               if (rx->pcap != NULL)
+                       continue;
+
+               if (strcmp(rx->type, ETH_PCAP_RX_PCAP_ARG) == 0) {
+                       if (open_single_rx_pcap(rx->name, &rx->pcap) < 0)
+                               return -1;
+               }
+
+               else if (strcmp(rx->type, ETH_PCAP_RX_IFACE_ARG) == 0) {
+                       if (open_single_iface(rx->name, &rx->pcap) < 0)
+                               return -1;
+               }
+       }
+
+status_up:
+
        dev->data->dev_link.link_status = 1;
        return 0;
 }
@@ -260,19 +335,44 @@ static void
 eth_dev_stop(struct rte_eth_dev *dev)
 {
        unsigned i;
-       pcap_dumper_t *dumper;
-       pcap_t *pcap;
        struct pmd_internals *internals = dev->data->dev_private;
+       struct pcap_tx_queue *tx;
+       struct pcap_rx_queue *rx;
+
+       /* Special iface case. Single pcap is open and shared between tx/rx. */
+       if (internals->single_iface) {
+               tx = &internals->tx_queue[0];
+               rx = &internals->rx_queue[0];
+               pcap_close(tx->pcap);
+               tx->pcap = NULL;
+               rx->pcap = NULL;
+               goto status_down;
+       }
 
        for (i = 0; i < internals->nb_tx_queues; i++) {
-               dumper = internals->tx_queue[i].dumper;
-               if(dumper != NULL)
-                       pcap_dump_close(dumper);
-               pcap = internals->tx_queue[i].pcap;
-               if(pcap != NULL)
-                       pcap_close(pcap);
+               tx = &internals->tx_queue[i];
+
+               if (tx->dumper != NULL) {
+                       pcap_dump_close(tx->dumper);
+                       tx->dumper = NULL;
+               }
+
+               if (tx->pcap != NULL) {
+                       pcap_close(tx->pcap);
+                       tx->pcap = NULL;
+               }
        }
 
+       for (i = 0; i < internals->nb_rx_queues; i++) {
+               rx = &internals->rx_queue[i];
+
+               if (rx->pcap != NULL) {
+                       pcap_close(rx->pcap);
+                       rx->pcap = NULL;
+               }
+       }
+
+status_down:
        dev->data->dev_link.link_status = 0;
 }
 
@@ -288,6 +388,7 @@ eth_dev_info(struct rte_eth_dev *dev,
 {
        struct pmd_internals *internals = dev->data->dev_private;
        dev_info->driver_name = drivername;
+       dev_info->if_index = internals->if_index;
        dev_info->max_mac_addrs = 1;
        dev_info->max_rx_pktlen = (uint32_t) -1;
        dev_info->max_rx_queues = (uint16_t)internals->nb_rx_queues;
@@ -304,7 +405,6 @@ eth_stats_get(struct rte_eth_dev *dev,
        unsigned long rx_total = 0, tx_total = 0, tx_err_total = 0;
        const struct pmd_internals *internal = dev->data->dev_private;
 
-       memset(igb_stats, 0, sizeof(*igb_stats));
        for (i = 0; i < RTE_ETHDEV_QUEUE_STAT_CNTRS && i < internal->nb_rx_queues;
                        i++) {
                igb_stats->q_ipackets[i] = internal->rx_queue[i].rx_pkts;
@@ -366,6 +466,7 @@ eth_rx_queue_setup(struct rte_eth_dev *dev,
        struct pcap_rx_queue *pcap_q = &internals->rx_queue[rx_queue_id];
        pcap_q->mb_pool = mb_pool;
        dev->data->rx_queues[rx_queue_id] = pcap_q;
+       pcap_q->in_port = dev->data->port_id;
        return 0;
 }
 
@@ -382,19 +483,26 @@ eth_tx_queue_setup(struct rte_eth_dev *dev,
        return 0;
 }
 
-static struct eth_dev_ops ops = {
-               .dev_start = eth_dev_start,
-               .dev_stop =     eth_dev_stop,
-               .dev_close = eth_dev_close,
-               .dev_configure = eth_dev_configure,
-               .dev_infos_get = eth_dev_info,
-               .rx_queue_setup = eth_rx_queue_setup,
-               .tx_queue_setup = eth_tx_queue_setup,
-               .rx_queue_release = eth_queue_release,
-               .tx_queue_release = eth_queue_release,
-               .link_update = eth_link_update,
-               .stats_get = eth_stats_get,
-               .stats_reset = eth_stats_reset,
+static const struct eth_dev_ops ops = {
+       .dev_start = eth_dev_start,
+       .dev_stop =     eth_dev_stop,
+       .dev_close = eth_dev_close,
+       .dev_configure = eth_dev_configure,
+       .dev_infos_get = eth_dev_info,
+       .rx_queue_setup = eth_rx_queue_setup,
+       .tx_queue_setup = eth_tx_queue_setup,
+       .rx_queue_release = eth_queue_release,
+       .tx_queue_release = eth_queue_release,
+       .link_update = eth_link_update,
+       .stats_get = eth_stats_get,
+       .stats_reset = eth_stats_reset,
+};
+
+static struct eth_driver rte_pcap_pmd = {
+       .pci_drv = {
+               .name = "rte_pcap_pmd",
+               .drv_flags = RTE_PCI_DRV_DETACHABLE,
+       },
 };
 
 /*
@@ -402,55 +510,79 @@ static struct eth_dev_ops ops = {
  * reference of it for use it later on.
  */
 static int
-open_rx_pcap(const char *key __rte_unused, const char *value, void *extra_args)
+open_rx_pcap(const char *key, const char *value, void *extra_args)
 {
        unsigned i;
        const char *pcap_filename = value;
        struct rx_pcaps *pcaps = extra_args;
-       pcap_t *rx_pcap;
+       pcap_t *pcap = NULL;
 
        for (i = 0; i < pcaps->num_of_rx; i++) {
-               if ((rx_pcap = pcap_open_offline(pcap_filename, errbuf)) == NULL) {
-                       RTE_LOG(ERR, PMD, "Couldn't open %s: %s\n", pcap_filename, errbuf);
+               if (open_single_rx_pcap(pcap_filename, &pcap) < 0)
                        return -1;
-               }
-               pcaps->pcaps[i] = rx_pcap;
+
+               pcaps->pcaps[i] = pcap;
+               pcaps->names[i] = pcap_filename;
+               pcaps->types[i] = key;
        }
 
        return 0;
 }
 
+static int
+open_single_rx_pcap(const char *pcap_filename, pcap_t **pcap)
+{
+       if ((*pcap = pcap_open_offline(pcap_filename, errbuf)) == NULL) {
+               RTE_LOG(ERR, PMD, "Couldn't open %s: %s\n", pcap_filename, errbuf);
+               return -1;
+       }
+       return 0;
+}
+
 /*
  * Opens a pcap file for writing and stores a reference to it
  * for use it later on.
  */
 static int
-open_tx_pcap(const char *key __rte_unused, const char *value, void *extra_args)
+open_tx_pcap(const char *key, const char *value, void *extra_args)
 {
        unsigned i;
        const char *pcap_filename = value;
        struct tx_pcaps *dumpers = extra_args;
-       pcap_t *tx_pcap;
        pcap_dumper_t *dumper;
 
        for (i = 0; i < dumpers->num_of_tx; i++) {
-               /*
-                * We need to create a dummy empty pcap_t to use it
-                * with pcap_dump_open(). We create big enough an Ethernet
-                * pcap holder.
-                */
-               if ((tx_pcap = pcap_open_dead(DLT_EN10MB, RTE_ETH_PCAP_SNAPSHOT_LEN))
-                               == NULL) {
-                       RTE_LOG(ERR, PMD, "Couldn't create dead pcap\n");
+               if (open_single_tx_pcap(pcap_filename, &dumper) < 0)
                        return -1;
-               }
 
-               /* The dumper is created using the previous pcap_t reference */
-               if ((dumper = pcap_dump_open(tx_pcap, pcap_filename)) == NULL) {
-                       RTE_LOG(ERR, PMD, "Couldn't open %s for writing.\n", pcap_filename);
-                       return -1;
-               }
                dumpers->dumpers[i] = dumper;
+               dumpers->names[i] = pcap_filename;
+               dumpers->types[i] = key;
+       }
+
+       return 0;
+}
+
+static int
+open_single_tx_pcap(const char *pcap_filename, pcap_dumper_t **dumper)
+{
+       pcap_t *tx_pcap;
+       /*
+        * We need to create a dummy empty pcap_t to use it
+        * with pcap_dump_open(). We create big enough an Ethernet
+        * pcap holder.
+        */
+
+       if ((tx_pcap = pcap_open_dead(DLT_EN10MB, RTE_ETH_PCAP_SNAPSHOT_LEN))
+                       == NULL) {
+               RTE_LOG(ERR, PMD, "Couldn't create dead pcap\n");
+               return -1;
+       }
+
+       /* The dumper is created using the previous pcap_t reference */
+       if ((*dumper = pcap_dump_open(tx_pcap, pcap_filename)) == NULL) {
+               RTE_LOG(ERR, PMD, "Couldn't open %s for writing.\n", pcap_filename);
+               return -1;
        }
 
        return 0;
@@ -475,13 +607,19 @@ open_iface_live(const char *iface, pcap_t **pcap) {
  * Opens an interface for reading and writing
  */
 static inline int
-open_rx_tx_iface(const char *key __rte_unused, const char *value, void *extra_args)
+open_rx_tx_iface(const char *key, const char *value, void *extra_args)
 {
        const char *iface = value;
-       pcap_t **pcap = extra_args;
+       struct rx_pcaps *pcaps = extra_args;
+       pcap_t *pcap = NULL;
 
-       if(open_iface_live(iface, pcap) < 0)
+       if (open_single_iface(iface, &pcap) < 0)
                return -1;
+
+       pcaps->pcaps[0] = pcap;
+       pcaps->names[0] = iface;
+       pcaps->types[0] = key;
+
        return 0;
 }
 
@@ -489,7 +627,7 @@ open_rx_tx_iface(const char *key __rte_unused, const char *value, void *extra_ar
  * Opens a NIC for reading packets from it
  */
 static inline int
-open_rx_iface(const char *key __rte_unused, const char *value, void *extra_args)
+open_rx_iface(const char *key, const char *value, void *extra_args)
 {
        unsigned i;
        const char *iface = value;
@@ -497,9 +635,11 @@ open_rx_iface(const char *key __rte_unused, const char *value, void *extra_args)
        pcap_t *pcap = NULL;
 
        for (i = 0; i < pcaps->num_of_rx; i++) {
-               if(open_iface_live(iface, &pcap) < 0)
+               if (open_single_iface(iface, &pcap) < 0)
                        return -1;
                pcaps->pcaps[i] = pcap;
+               pcaps->names[i] = iface;
+               pcaps->types[i] = key;
        }
 
        return 0;
@@ -508,8 +648,8 @@ open_rx_iface(const char *key __rte_unused, const char *value, void *extra_args)
 /*
  * Opens a NIC for writing packets to it
  */
-static inline int
-open_tx_iface(const char *key __rte_unused, const char *value, void *extra_args)
+static int
+open_tx_iface(const char *key, const char *value, void *extra_args)
 {
        unsigned i;
        const char *iface = value;
@@ -517,24 +657,45 @@ open_tx_iface(const char *key __rte_unused, const char *value, void *extra_args)
        pcap_t *pcap;
 
        for (i = 0; i < pcaps->num_of_tx; i++) {
-               if(open_iface_live(iface, &pcap) < 0)
+               if (open_single_iface(iface, &pcap) < 0)
                        return -1;
                pcaps->pcaps[i] = pcap;
+               pcaps->names[i] = iface;
+               pcaps->types[i] = key;
        }
 
        return 0;
 }
 
+static int
+open_single_iface(const char *iface, pcap_t **pcap)
+{
+       if (open_iface_live(iface, pcap) < 0) {
+               RTE_LOG(ERR, PMD, "Couldn't open interface %s\n", iface);
+               return -1;
+       }
+
+       return 0;
+}
 
 static int
-rte_pmd_init_internals(const unsigned nb_rx_queues,
+rte_pmd_init_internals(const char *name, const unsigned nb_rx_queues,
                const unsigned nb_tx_queues,
                const unsigned numa_node,
                struct pmd_internals **internals,
-               struct rte_eth_dev **eth_dev)
+               struct rte_eth_dev **eth_dev,
+               struct rte_kvargs *kvlist)
 {
        struct rte_eth_dev_data *data = NULL;
        struct rte_pci_device *pci_dev = NULL;
+       unsigned k_idx;
+       struct rte_kvargs_pair *pair = NULL;
+
+       for (k_idx = 0; k_idx < kvlist->count; k_idx++) {
+               pair = &kvlist->pairs[k_idx];
+               if (strstr(pair->key, ETH_PCAP_IFACE_ARG) != NULL)
+                       break;
+       }
 
        RTE_LOG(INFO, PMD,
                        "Creating pcap-backed ethdev on numa socket %u\n", numa_node);
@@ -542,23 +703,27 @@ rte_pmd_init_internals(const unsigned nb_rx_queues,
        /* now do all data allocation - for eth_dev structure, dummy pci driver
         * and internal (private) data
         */
-       data = rte_zmalloc_socket(NULL, sizeof(*data), 0, numa_node);
+       data = rte_zmalloc_socket(name, sizeof(*data), 0, numa_node);
        if (data == NULL)
                goto error;
 
-       pci_dev = rte_zmalloc_socket(NULL, sizeof(*pci_dev), 0, numa_node);
+       pci_dev = rte_zmalloc_socket(name, sizeof(*pci_dev), 0, numa_node);
        if (pci_dev == NULL)
                goto error;
 
-       *internals = rte_zmalloc_socket(NULL, sizeof(**internals), 0, numa_node);
+       *internals = rte_zmalloc_socket(name, sizeof(**internals), 0, numa_node);
        if (*internals == NULL)
                goto error;
 
        /* reserve an ethdev entry */
-       *eth_dev = rte_eth_dev_allocate();
+       *eth_dev = rte_eth_dev_allocate(name, RTE_ETH_DEV_VIRTUAL);
        if (*eth_dev == NULL)
                goto error;
 
+       /* check length of device name */
+       if ((strlen((*eth_dev)->data->name) + 1) > sizeof(data->name))
+               goto error;
+
        /* now put it all together
         * - store queue data in internals,
         * - store numa_node info in pci_driver
@@ -571,36 +736,46 @@ rte_pmd_init_internals(const unsigned nb_rx_queues,
        (*internals)->nb_rx_queues = nb_rx_queues;
        (*internals)->nb_tx_queues = nb_tx_queues;
 
+       if (pair == NULL)
+               (*internals)->if_index = 0;
+       else
+               (*internals)->if_index = if_nametoindex(pair->value);
+
        pci_dev->numa_node = numa_node;
 
        data->dev_private = *internals;
        data->port_id = (*eth_dev)->data->port_id;
+       snprintf(data->name, sizeof(data->name), "%s", (*eth_dev)->data->name);
        data->nb_rx_queues = (uint16_t)nb_rx_queues;
        data->nb_tx_queues = (uint16_t)nb_tx_queues;
        data->dev_link = pmd_link;
        data->mac_addrs = &eth_addr;
+       strncpy(data->name,
+               (*eth_dev)->data->name, strlen((*eth_dev)->data->name));
 
        (*eth_dev)->data = data;
        (*eth_dev)->dev_ops = &ops;
        (*eth_dev)->pci_dev = pci_dev;
+       (*eth_dev)->driver = &rte_pcap_pmd;
 
        return 0;
 
-       error: if (data)
-               rte_free(data);
-       if (pci_dev)
-               rte_free(pci_dev);
-       if (*internals)
-               rte_free(*internals);
+error: 
+       rte_free(data);
+       rte_free(pci_dev);
+       rte_free(*internals);
+
        return -1;
 }
 
-int
-rte_eth_from_pcaps_n_dumpers(pcap_t * const rx_queues[],
+static int
+rte_eth_from_pcaps_n_dumpers(const char *name,
+               struct rx_pcaps *rx_queues,
                const unsigned nb_rx_queues,
-               pcap_dumper_t * const tx_queues[],
+               struct tx_pcaps *tx_queues,
                const unsigned nb_tx_queues,
-               const unsigned numa_node)
+               const unsigned numa_node,
+               struct rte_kvargs *kvlist)
 {
        struct pmd_internals *internals = NULL;
        struct rte_eth_dev *eth_dev = NULL;
@@ -612,29 +787,47 @@ rte_eth_from_pcaps_n_dumpers(pcap_t * const rx_queues[],
        if (tx_queues == NULL && nb_tx_queues > 0)
                return -1;
 
-       if (rte_pmd_init_internals(nb_rx_queues, nb_tx_queues, numa_node,
-                       &internals, &eth_dev) < 0)
+       if (rte_pmd_init_internals(name, nb_rx_queues, nb_tx_queues, numa_node,
+                       &internals, &eth_dev, kvlist) < 0)
                return -1;
 
        for (i = 0; i < nb_rx_queues; i++) {
-               internals->rx_queue->pcap = rx_queues[i];
+               internals->rx_queue[i].pcap = rx_queues->pcaps[i];
+               snprintf(internals->rx_queue[i].name,
+                       sizeof(internals->rx_queue[i].name), "%s",
+                       rx_queues->names[i]);
+               snprintf(internals->rx_queue[i].type,
+                       sizeof(internals->rx_queue[i].type), "%s",
+                       rx_queues->types[i]);
        }
        for (i = 0; i < nb_tx_queues; i++) {
-               internals->tx_queue->dumper = tx_queues[i];
+               internals->tx_queue[i].dumper = tx_queues->dumpers[i];
+               snprintf(internals->tx_queue[i].name,
+                       sizeof(internals->tx_queue[i].name), "%s",
+                       tx_queues->names[i]);
+               snprintf(internals->tx_queue[i].type,
+                       sizeof(internals->tx_queue[i].type), "%s",
+                       tx_queues->types[i]);
        }
 
+       /* using multiple pcaps/interfaces */
+       internals->single_iface = 0;
+
        eth_dev->rx_pkt_burst = eth_pcap_rx;
        eth_dev->tx_pkt_burst = eth_pcap_tx_dumper;
 
        return 0;
 }
 
-int
-rte_eth_from_pcaps(pcap_t * const rx_queues[],
+static int
+rte_eth_from_pcaps(const char *name,
+               struct rx_pcaps *rx_queues,
                const unsigned nb_rx_queues,
-               pcap_t * const tx_queues[],
+               struct tx_pcaps *tx_queues,
                const unsigned nb_tx_queues,
-               const unsigned numa_node)
+               const unsigned numa_node,
+               struct rte_kvargs *kvlist,
+               int single_iface)
 {
        struct pmd_internals *internals = NULL;
        struct rte_eth_dev *eth_dev = NULL;
@@ -646,17 +839,32 @@ rte_eth_from_pcaps(pcap_t * const rx_queues[],
        if (tx_queues == NULL && nb_tx_queues > 0)
                return -1;
 
-       if (rte_pmd_init_internals(nb_rx_queues, nb_tx_queues, numa_node,
-                       &internals, &eth_dev) < 0)
+       if (rte_pmd_init_internals(name, nb_rx_queues, nb_tx_queues, numa_node,
+                       &internals, &eth_dev, kvlist) < 0)
                return -1;
 
        for (i = 0; i < nb_rx_queues; i++) {
-               internals->rx_queue->pcap = rx_queues[i];
+               internals->rx_queue[i].pcap = rx_queues->pcaps[i];
+               snprintf(internals->rx_queue[i].name,
+                       sizeof(internals->rx_queue[i].name), "%s",
+                       rx_queues->names[i]);
+               snprintf(internals->rx_queue[i].type,
+                       sizeof(internals->rx_queue[i].type), "%s",
+                       rx_queues->types[i]);
        }
        for (i = 0; i < nb_tx_queues; i++) {
-               internals->tx_queue->pcap = tx_queues[i];
+               internals->tx_queue[i].dumper = tx_queues->dumpers[i];
+               snprintf(internals->tx_queue[i].name,
+                       sizeof(internals->tx_queue[i].name), "%s",
+                       tx_queues->names[i]);
+               snprintf(internals->tx_queue[i].type,
+                       sizeof(internals->tx_queue[i].type), "%s",
+                       tx_queues->types[i]);
        }
 
+       /* store wether we are using a single interface for rx/tx or not */
+       internals->single_iface = single_iface;
+
        eth_dev->rx_pkt_burst = eth_pcap_rx;
        eth_dev->tx_pkt_burst = eth_pcap_tx;
 
@@ -664,8 +872,8 @@ rte_eth_from_pcaps(pcap_t * const rx_queues[],
 }
 
 
-int
-rte_pmd_pcap_init(const char *name, const char *params)
+static int
+rte_pmd_pcap_devinit(const char *name, const char *params)
 {
        unsigned numa_node, using_dumpers = 0;
        int ret;
@@ -692,11 +900,15 @@ rte_pmd_pcap_init(const char *name, const char *params)
        if (rte_kvargs_count(kvlist, ETH_PCAP_IFACE_ARG) == 1) {
 
                ret = rte_kvargs_process(kvlist, ETH_PCAP_IFACE_ARG,
-                               &open_rx_tx_iface, &pcaps.pcaps[0]);
+                               &open_rx_tx_iface, &pcaps);
                if (ret < 0)
-                       return -1;
-
-               return rte_eth_from_pcaps(pcaps.pcaps, 1, pcaps.pcaps, 1, numa_node);
+                       goto free_kvlist;
+               dumpers.pcaps[0] = pcaps.pcaps[0];
+               dumpers.names[0] = pcaps.names[0];
+               dumpers.types[0] = pcaps.types[0];
+               ret = rte_eth_from_pcaps(name, &pcaps, 1, &dumpers, 1,
+                               numa_node, kvlist, 1);
+               goto free_kvlist;
        }
 
        /*
@@ -714,7 +926,7 @@ rte_pmd_pcap_init(const char *name, const char *params)
        }
 
        if (ret < 0)
-               return -1;
+               goto free_kvlist;
 
        /*
         * We check whether we want to open a TX stream to a real NIC or a
@@ -733,14 +945,50 @@ rte_pmd_pcap_init(const char *name, const char *params)
        }
 
        if (ret < 0)
-               return -1;
+               goto free_kvlist;
 
        if (using_dumpers)
-               return rte_eth_from_pcaps_n_dumpers(pcaps.pcaps, pcaps.num_of_rx,
-                               dumpers.dumpers, dumpers.num_of_tx, numa_node);
+               ret = rte_eth_from_pcaps_n_dumpers(name, &pcaps, pcaps.num_of_rx,
+                               &dumpers, dumpers.num_of_tx, numa_node, kvlist);
+       else
+               ret = rte_eth_from_pcaps(name, &pcaps, pcaps.num_of_rx, &dumpers,
+                       dumpers.num_of_tx, numa_node, kvlist, 0);
+
+free_kvlist:
+       rte_kvargs_free(kvlist);
+       return ret;
+}
 
-       return rte_eth_from_pcaps(pcaps.pcaps, pcaps.num_of_rx, dumpers.pcaps,
-                       dumpers.num_of_tx, numa_node);
+static int
+rte_pmd_pcap_devuninit(const char *name)
+{
+       struct rte_eth_dev *eth_dev = NULL;
+
+       RTE_LOG(INFO, PMD, "Closing pcap ethdev on numa socket %u\n",
+                       rte_socket_id());
+
+       if (name == NULL)
+               return -1;
+
+       /* reserve an ethdev entry */
+       eth_dev = rte_eth_dev_allocated(name);
+       if (eth_dev == NULL)
+               return -1;
+
+       rte_free(eth_dev->data->dev_private);
+       rte_free(eth_dev->data);
+       rte_free(eth_dev->pci_dev);
+
+       rte_eth_dev_release_port(eth_dev);
 
+       return 0;
 }
 
+static struct rte_driver pmd_pcap_drv = {
+       .name = "eth_pcap",
+       .type = PMD_VDEV,
+       .init = rte_pmd_pcap_devinit,
+       .uninit = rte_pmd_pcap_devuninit,
+};
+
+PMD_REGISTER_DRIVER(pmd_pcap_drv);