PCAP PMD
M: Nicolás Pernas Maradei <nicolas.pernas.maradei@emutex.com>
M: John McNamara <john.mcnamara@intel.com>
-F: lib/librte_pmd_pcap/
+F: drivers/net/pcap/
F: doc/guides/nics/pcap_ring.rst
Ring PMD
+-- librte_mempool # memory pool manager (fixedsized objects)
+-- librte_meter # QoS metering library
+-- librte_net # various IP-related headers
- +-- librte_pmd_pcap # PCAP poll mode driver
+-- librte_pmd_ring # ring poll mode driver
+-- librte_pmd_virtio # virtio poll mode driver
+-- librte_pmd_vmxnet3 # VMXNET3 poll mode driver
+-- ixgbe # 10GbE poll mode driver
+-- mlx4 # Mellanox ConnectX-3 poll mode driver
+-- null # NULL poll mode driver for testing
+ +-- pcap # PCAP poll mode driver
Applications
------------
DIRS-$(CONFIG_RTE_LIBRTE_IXGBE_PMD) += ixgbe
DIRS-$(CONFIG_RTE_LIBRTE_MLX4_PMD) += mlx4
DIRS-$(CONFIG_RTE_LIBRTE_PMD_NULL) += null
+DIRS-$(CONFIG_RTE_LIBRTE_PMD_PCAP) += pcap
include $(RTE_SDK)/mk/rte.sharelib.mk
include $(RTE_SDK)/mk/rte.subdir.mk
--- /dev/null
+# 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
+# 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.
+
+include $(RTE_SDK)/mk/rte.vars.mk
+
+#
+# library name
+#
+LIB = librte_pmd_pcap.a
+
+CFLAGS += -O3
+CFLAGS += $(WERROR_FLAGS)
+
+EXPORT_MAP := rte_pmd_pcap_version.map
+
+LIBABIVER := 1
+
+#
+# all source are stored in SRCS-y
+#
+SRCS-$(CONFIG_RTE_LIBRTE_PMD_PCAP) += rte_eth_pcap.c
+
+#
+# Export include files
+#
+SYMLINK-y-include +=
+
+# this lib depends upon:
+DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_PCAP) += lib/librte_mbuf
+DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_PCAP) += lib/librte_ether
+DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_PCAP) += lib/librte_malloc
+DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_PCAP) += lib/librte_kvargs
+
+include $(RTE_SDK)/mk/rte.lib.mk
--- /dev/null
+/*-
+ * 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
+ * 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.
+ */
+
+#include <time.h>
+#include <rte_mbuf.h>
+#include <rte_ethdev.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_string_fns.h>
+#include <rte_cycles.h>
+#include <rte_kvargs.h>
+#include <rte_dev.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_ARG_MAXLEN 64
+
+static char errbuf[PCAP_ERRBUF_SIZE];
+static struct timeval start_time;
+static uint64_t start_cycles;
+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 {
+ pcap_dumper_t *dumper;
+ 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 {
+ 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[] = {
+ ETH_PCAP_RX_PCAP_ARG,
+ ETH_PCAP_TX_PCAP_ARG,
+ ETH_PCAP_RX_IFACE_ARG,
+ ETH_PCAP_TX_IFACE_ARG,
+ ETH_PCAP_IFACE_ARG,
+ 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 = {
+ .link_speed = 10000,
+ .link_duplex = ETH_LINK_FULL_DUPLEX,
+ .link_status = 0
+};
+
+
+static uint16_t
+eth_pcap_rx(void *queue,
+ struct rte_mbuf **bufs,
+ uint16_t nb_pkts)
+{
+ unsigned i;
+ struct pcap_pkthdr header;
+ const u_char *packet;
+ struct rte_mbuf *mbuf;
+ struct pcap_rx_queue *pcap_q = queue;
+ uint16_t num_rx = 0;
+ uint16_t buf_size;
+
+ if (unlikely(pcap_q->pcap == NULL || nb_pkts == 0))
+ return 0;
+
+ /* Reads the given number of packets from the pcap file one by one
+ * and copies the packet data into a newly allocated mbuf to return.
+ */
+ for (i = 0; i < nb_pkts; i++) {
+ /* Get the next PCAP packet */
+ packet = pcap_next(pcap_q->pcap, &header);
+ if (unlikely(packet == NULL))
+ break;
+ else
+ mbuf = rte_pktmbuf_alloc(pcap_q->mb_pool);
+ if (unlikely(mbuf == NULL))
+ break;
+
+ /* Now get the space available for data in the mbuf */
+ 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(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,
+ "PCAP packet %d bytes will not fit in mbuf (%d bytes)\n",
+ header.len, buf_size);
+ rte_pktmbuf_free(mbuf);
+ }
+ }
+ pcap_q->rx_pkts += num_rx;
+ return num_rx;
+}
+
+static inline void
+calculate_timestamp(struct timeval *ts) {
+ uint64_t cycles;
+ struct timeval cur_time;
+
+ cycles = rte_get_timer_cycles() - start_cycles;
+ cur_time.tv_sec = cycles / hz;
+ cur_time.tv_usec = (cycles % hz) * 10e6 / hz;
+ timeradd(&start_time, &cur_time, ts);
+}
+
+/*
+ * Callback to handle writing packets to a pcap file.
+ */
+static uint16_t
+eth_pcap_tx_dumper(void *queue,
+ struct rte_mbuf **bufs,
+ uint16_t nb_pkts)
+{
+ unsigned i;
+ struct rte_mbuf *mbuf;
+ struct pcap_tx_queue *dumper_q = queue;
+ uint16_t num_tx = 0;
+ struct pcap_pkthdr header;
+
+ if (dumper_q->dumper == NULL || nb_pkts == 0)
+ return 0;
+
+ /* writes the nb_pkts packets to the previously opened pcap file dumper */
+ for (i = 0; i < nb_pkts; i++) {
+ mbuf = bufs[i];
+ calculate_timestamp(&header.ts);
+ header.len = mbuf->data_len;
+ header.caplen = header.len;
+ pcap_dump((u_char *)dumper_q->dumper, &header,
+ rte_pktmbuf_mtod(mbuf, void*));
+ rte_pktmbuf_free(mbuf);
+ num_tx++;
+ }
+
+ /*
+ * Since there's no place to hook a callback when the forwarding
+ * process stops and to make sure the pcap file is actually written,
+ * we flush the pcap dumper within each burst.
+ */
+ pcap_dump_flush(dumper_q->dumper);
+ dumper_q->tx_pkts += num_tx;
+ dumper_q->err_pkts += nb_pkts - num_tx;
+ return num_tx;
+}
+
+/*
+ * Callback to handle sending packets through a real NIC.
+ */
+static uint16_t
+eth_pcap_tx(void *queue,
+ struct rte_mbuf **bufs,
+ uint16_t nb_pkts)
+{
+ unsigned i;
+ int ret;
+ struct rte_mbuf *mbuf;
+ struct pcap_tx_queue *tx_queue = queue;
+ uint16_t num_tx = 0;
+
+ if (unlikely(nb_pkts == 0 || tx_queue->pcap == NULL))
+ return 0;
+
+ for (i = 0; i < nb_pkts; i++) {
+ mbuf = bufs[i];
+ 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);
+ }
+
+ tx_queue->tx_pkts += num_tx;
+ tx_queue->err_pkts += nb_pkts - num_tx;
+ return num_tx;
+}
+
+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;
+}
+
+/*
+ * This function gets called when the current port gets stopped.
+ * Is the only place for us to close all the tx streams dumpers.
+ * If not called the dumpers will be flushed within each tx burst.
+ */
+static void
+eth_dev_stop(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];
+ pcap_close(tx->pcap);
+ tx->pcap = NULL;
+ rx->pcap = NULL;
+ goto status_down;
+ }
+
+ for (i = 0; i < internals->nb_tx_queues; i++) {
+ 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;
+}
+
+static int
+eth_dev_configure(struct rte_eth_dev *dev __rte_unused)
+{
+ return 0;
+}
+
+static void
+eth_dev_info(struct rte_eth_dev *dev,
+ struct rte_eth_dev_info *dev_info)
+{
+ 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;
+ dev_info->max_tx_queues = (uint16_t)internals->nb_tx_queues;
+ dev_info->min_rx_bufsize = 0;
+ dev_info->pci_dev = NULL;
+}
+
+static void
+eth_stats_get(struct rte_eth_dev *dev,
+ struct rte_eth_stats *igb_stats)
+{
+ unsigned i;
+ unsigned long rx_total = 0, tx_total = 0, tx_err_total = 0;
+ const struct pmd_internals *internal = dev->data->dev_private;
+
+ 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;
+ rx_total += igb_stats->q_ipackets[i];
+ }
+
+ for (i = 0; i < RTE_ETHDEV_QUEUE_STAT_CNTRS && i < internal->nb_tx_queues;
+ i++) {
+ igb_stats->q_opackets[i] = internal->tx_queue[i].tx_pkts;
+ igb_stats->q_errors[i] = internal->tx_queue[i].err_pkts;
+ tx_total += igb_stats->q_opackets[i];
+ tx_err_total += igb_stats->q_errors[i];
+ }
+
+ igb_stats->ipackets = rx_total;
+ igb_stats->opackets = tx_total;
+ igb_stats->oerrors = tx_err_total;
+}
+
+static void
+eth_stats_reset(struct rte_eth_dev *dev)
+{
+ unsigned i;
+ struct pmd_internals *internal = dev->data->dev_private;
+ for (i = 0; i < internal->nb_rx_queues; i++)
+ internal->rx_queue[i].rx_pkts = 0;
+ for (i = 0; i < internal->nb_tx_queues; i++) {
+ internal->tx_queue[i].tx_pkts = 0;
+ internal->tx_queue[i].err_pkts = 0;
+ }
+}
+
+static void
+eth_dev_close(struct rte_eth_dev *dev __rte_unused)
+{
+}
+
+static void
+eth_queue_release(void *q __rte_unused)
+{
+}
+
+static int
+eth_link_update(struct rte_eth_dev *dev __rte_unused,
+ int wait_to_complete __rte_unused)
+{
+ return 0;
+}
+
+static int
+eth_rx_queue_setup(struct rte_eth_dev *dev,
+ uint16_t rx_queue_id,
+ uint16_t nb_rx_desc __rte_unused,
+ unsigned int socket_id __rte_unused,
+ const struct rte_eth_rxconf *rx_conf __rte_unused,
+ struct rte_mempool *mb_pool)
+{
+ struct pmd_internals *internals = dev->data->dev_private;
+ 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;
+}
+
+static int
+eth_tx_queue_setup(struct rte_eth_dev *dev,
+ uint16_t tx_queue_id,
+ uint16_t nb_tx_desc __rte_unused,
+ unsigned int socket_id __rte_unused,
+ const struct rte_eth_txconf *tx_conf __rte_unused)
+{
+
+ struct pmd_internals *internals = dev->data->dev_private;
+ dev->data->tx_queues[tx_queue_id] = &internals->tx_queue[tx_queue_id];
+ return 0;
+}
+
+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,
+ },
+};
+
+/*
+ * Function handler that opens the pcap file for reading a stores a
+ * reference of it for use it later on.
+ */
+static int
+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 *pcap = NULL;
+
+ for (i = 0; i < pcaps->num_of_rx; i++) {
+ if (open_single_rx_pcap(pcap_filename, &pcap) < 0)
+ return -1;
+
+ 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, const char *value, void *extra_args)
+{
+ unsigned i;
+ const char *pcap_filename = value;
+ struct tx_pcaps *dumpers = extra_args;
+ pcap_dumper_t *dumper;
+
+ for (i = 0; i < dumpers->num_of_tx; i++) {
+ if (open_single_tx_pcap(pcap_filename, &dumper) < 0)
+ 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;
+}
+
+/*
+ * pcap_open_live wrapper function
+ */
+static inline int
+open_iface_live(const char *iface, pcap_t **pcap) {
+ *pcap = pcap_open_live(iface, RTE_ETH_PCAP_SNAPLEN,
+ RTE_ETH_PCAP_PROMISC, RTE_ETH_PCAP_TIMEOUT, errbuf);
+
+ if (*pcap == NULL) {
+ RTE_LOG(ERR, PMD, "Couldn't open %s: %s\n", iface, errbuf);
+ return -1;
+ }
+ return 0;
+}
+
+/*
+ * Opens an interface for reading and writing
+ */
+static inline int
+open_rx_tx_iface(const char *key, const char *value, void *extra_args)
+{
+ const char *iface = value;
+ struct rx_pcaps *pcaps = extra_args;
+ pcap_t *pcap = NULL;
+
+ if (open_single_iface(iface, &pcap) < 0)
+ return -1;
+
+ pcaps->pcaps[0] = pcap;
+ pcaps->names[0] = iface;
+ pcaps->types[0] = key;
+
+ return 0;
+}
+
+/*
+ * Opens a NIC for reading packets from it
+ */
+static inline int
+open_rx_iface(const char *key, const char *value, void *extra_args)
+{
+ unsigned i;
+ const char *iface = value;
+ struct rx_pcaps *pcaps = extra_args;
+ pcap_t *pcap = NULL;
+
+ for (i = 0; i < pcaps->num_of_rx; i++) {
+ if (open_single_iface(iface, &pcap) < 0)
+ return -1;
+ pcaps->pcaps[i] = pcap;
+ pcaps->names[i] = iface;
+ pcaps->types[i] = key;
+ }
+
+ return 0;
+}
+
+/*
+ * Opens a NIC for writing packets to it
+ */
+static int
+open_tx_iface(const char *key, const char *value, void *extra_args)
+{
+ unsigned i;
+ const char *iface = value;
+ struct tx_pcaps *pcaps = extra_args;
+ pcap_t *pcap;
+
+ for (i = 0; i < pcaps->num_of_tx; i++) {
+ 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 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_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);
+
+ /* now do all data allocation - for eth_dev structure, dummy pci driver
+ * and internal (private) data
+ */
+ data = rte_zmalloc_socket(name, sizeof(*data), 0, numa_node);
+ if (data == NULL)
+ goto error;
+
+ pci_dev = rte_zmalloc_socket(name, sizeof(*pci_dev), 0, numa_node);
+ if (pci_dev == NULL)
+ goto error;
+
+ *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(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
+ * - point eth_dev_data to internals and pci_driver
+ * - and point eth_dev structure to new eth_dev_data structure
+ */
+ /* NOTE: we'll replace the data element, of originally allocated eth_dev
+ * so the rings are local per-process */
+
+ (*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 = ð_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:
+ rte_free(data);
+ rte_free(pci_dev);
+ rte_free(*internals);
+
+ return -1;
+}
+
+static int
+rte_eth_from_pcaps_n_dumpers(const char *name,
+ struct rx_pcaps *rx_queues,
+ const unsigned nb_rx_queues,
+ struct tx_pcaps *tx_queues,
+ const unsigned nb_tx_queues,
+ const unsigned numa_node,
+ struct rte_kvargs *kvlist)
+{
+ struct pmd_internals *internals = NULL;
+ struct rte_eth_dev *eth_dev = NULL;
+ unsigned i;
+
+ /* do some parameter checking */
+ if (rx_queues == NULL && nb_rx_queues > 0)
+ return -1;
+ if (tx_queues == NULL && nb_tx_queues > 0)
+ return -1;
+
+ if (rte_pmd_init_internals(name, nb_rx_queues, nb_tx_queues, numa_node,
+ &internals, ð_dev, kvlist) < 0)
+ return -1;
+
+ for (i = 0; i < nb_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[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;
+}
+
+static int
+rte_eth_from_pcaps(const char *name,
+ struct rx_pcaps *rx_queues,
+ const unsigned nb_rx_queues,
+ struct tx_pcaps *tx_queues,
+ const unsigned nb_tx_queues,
+ const unsigned numa_node,
+ struct rte_kvargs *kvlist,
+ int single_iface)
+{
+ struct pmd_internals *internals = NULL;
+ struct rte_eth_dev *eth_dev = NULL;
+ unsigned i;
+
+ /* do some parameter checking */
+ if (rx_queues == NULL && nb_rx_queues > 0)
+ return -1;
+ if (tx_queues == NULL && nb_tx_queues > 0)
+ return -1;
+
+ if (rte_pmd_init_internals(name, nb_rx_queues, nb_tx_queues, numa_node,
+ &internals, ð_dev, kvlist) < 0)
+ return -1;
+
+ for (i = 0; i < nb_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[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;
+
+ return 0;
+}
+
+
+static int
+rte_pmd_pcap_devinit(const char *name, const char *params)
+{
+ unsigned numa_node, using_dumpers = 0;
+ int ret;
+ struct rte_kvargs *kvlist;
+ struct rx_pcaps pcaps;
+ struct tx_pcaps dumpers;
+
+ RTE_LOG(INFO, PMD, "Initializing pmd_pcap for %s\n", name);
+
+ numa_node = rte_socket_id();
+
+ gettimeofday(&start_time, NULL);
+ start_cycles = rte_get_timer_cycles();
+ hz = rte_get_timer_hz();
+
+ kvlist = rte_kvargs_parse(params, valid_arguments);
+ if (kvlist == NULL)
+ return -1;
+
+ /*
+ * If iface argument is passed we open the NICs and use them for
+ * reading / writing
+ */
+ if (rte_kvargs_count(kvlist, ETH_PCAP_IFACE_ARG) == 1) {
+
+ ret = rte_kvargs_process(kvlist, ETH_PCAP_IFACE_ARG,
+ &open_rx_tx_iface, &pcaps);
+ if (ret < 0)
+ 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;
+ }
+
+ /*
+ * We check whether we want to open a RX stream from a real NIC or a
+ * pcap file
+ */
+ if ((pcaps.num_of_rx = rte_kvargs_count(kvlist, ETH_PCAP_RX_PCAP_ARG))) {
+ ret = rte_kvargs_process(kvlist, ETH_PCAP_RX_PCAP_ARG,
+ &open_rx_pcap, &pcaps);
+ } else {
+ pcaps.num_of_rx = rte_kvargs_count(kvlist,
+ ETH_PCAP_RX_IFACE_ARG);
+ ret = rte_kvargs_process(kvlist, ETH_PCAP_RX_IFACE_ARG,
+ &open_rx_iface, &pcaps);
+ }
+
+ if (ret < 0)
+ goto free_kvlist;
+
+ /*
+ * We check whether we want to open a TX stream to a real NIC or a
+ * pcap file
+ */
+ if ((dumpers.num_of_tx = rte_kvargs_count(kvlist,
+ ETH_PCAP_TX_PCAP_ARG))) {
+ ret = rte_kvargs_process(kvlist, ETH_PCAP_TX_PCAP_ARG,
+ &open_tx_pcap, &dumpers);
+ using_dumpers = 1;
+ } else {
+ dumpers.num_of_tx = rte_kvargs_count(kvlist,
+ ETH_PCAP_TX_IFACE_ARG);
+ ret = rte_kvargs_process(kvlist, ETH_PCAP_TX_IFACE_ARG,
+ &open_tx_iface, &dumpers);
+ }
+
+ if (ret < 0)
+ goto free_kvlist;
+
+ if (using_dumpers)
+ 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;
+}
+
+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);
--- /dev/null
+DPDK_2.0 {
+
+ local: *;
+};
DIRS-$(CONFIG_RTE_LIBRTE_CMDLINE) += librte_cmdline
DIRS-$(CONFIG_RTE_LIBRTE_ETHER) += librte_ether
DIRS-$(CONFIG_RTE_LIBRTE_PMD_RING) += librte_pmd_ring
-DIRS-$(CONFIG_RTE_LIBRTE_PMD_PCAP) += librte_pmd_pcap
DIRS-$(CONFIG_RTE_LIBRTE_VIRTIO_PMD) += librte_pmd_virtio
DIRS-$(CONFIG_RTE_LIBRTE_VMXNET3_PMD) += librte_pmd_vmxnet3
DIRS-$(CONFIG_RTE_LIBRTE_PMD_XENVIRT) += librte_pmd_xenvirt
# BSD LICENSE
#
-# Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+# Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
CFLAGS += -I$(RTE_SDK)/lib/librte_malloc
CFLAGS += -I$(RTE_SDK)/lib/librte_ether
CFLAGS += -I$(RTE_SDK)/lib/librte_pmd_ring
-CFLAGS += -I$(RTE_SDK)/lib/librte_pmd_pcap
+CFLAGS += -I$(RTE_SDK)/drivers/net/pcap
CFLAGS += $(WERROR_FLAGS) -O3
EXPORT_MAP := rte_eal_version.map
CFLAGS += -I$(RTE_SDK)/lib/librte_ether
CFLAGS += -I$(RTE_SDK)/lib/librte_ivshmem
CFLAGS += -I$(RTE_SDK)/lib/librte_pmd_ring
-CFLAGS += -I$(RTE_SDK)/lib/librte_pmd_pcap
+CFLAGS += -I$(RTE_SDK)/drivers/net/pcap
CFLAGS += -I$(RTE_SDK)/drivers/net/af_packet
CFLAGS += -I$(RTE_SDK)/lib/librte_pmd_xenvirt
CFLAGS += $(WERROR_FLAGS) -O3
+++ /dev/null
-# 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
-# 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.
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-#
-# library name
-#
-LIB = librte_pmd_pcap.a
-
-CFLAGS += -O3
-CFLAGS += $(WERROR_FLAGS)
-
-EXPORT_MAP := rte_pmd_pcap_version.map
-
-LIBABIVER := 1
-
-#
-# all source are stored in SRCS-y
-#
-SRCS-$(CONFIG_RTE_LIBRTE_PMD_PCAP) += rte_eth_pcap.c
-
-#
-# Export include files
-#
-SYMLINK-y-include +=
-
-# this lib depends upon:
-DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_PCAP) += lib/librte_mbuf
-DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_PCAP) += lib/librte_ether
-DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_PCAP) += lib/librte_malloc
-DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_PCAP) += lib/librte_kvargs
-
-include $(RTE_SDK)/mk/rte.lib.mk
+++ /dev/null
-/*-
- * 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
- * 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.
- */
-
-#include <time.h>
-#include <rte_mbuf.h>
-#include <rte_ethdev.h>
-#include <rte_malloc.h>
-#include <rte_memcpy.h>
-#include <rte_string_fns.h>
-#include <rte_cycles.h>
-#include <rte_kvargs.h>
-#include <rte_dev.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_ARG_MAXLEN 64
-
-static char errbuf[PCAP_ERRBUF_SIZE];
-static struct timeval start_time;
-static uint64_t start_cycles;
-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 {
- pcap_dumper_t *dumper;
- 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 {
- 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[] = {
- ETH_PCAP_RX_PCAP_ARG,
- ETH_PCAP_TX_PCAP_ARG,
- ETH_PCAP_RX_IFACE_ARG,
- ETH_PCAP_TX_IFACE_ARG,
- ETH_PCAP_IFACE_ARG,
- 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 = {
- .link_speed = 10000,
- .link_duplex = ETH_LINK_FULL_DUPLEX,
- .link_status = 0
-};
-
-
-static uint16_t
-eth_pcap_rx(void *queue,
- struct rte_mbuf **bufs,
- uint16_t nb_pkts)
-{
- unsigned i;
- struct pcap_pkthdr header;
- const u_char *packet;
- struct rte_mbuf *mbuf;
- struct pcap_rx_queue *pcap_q = queue;
- uint16_t num_rx = 0;
- uint16_t buf_size;
-
- if (unlikely(pcap_q->pcap == NULL || nb_pkts == 0))
- return 0;
-
- /* Reads the given number of packets from the pcap file one by one
- * and copies the packet data into a newly allocated mbuf to return.
- */
- for (i = 0; i < nb_pkts; i++) {
- /* Get the next PCAP packet */
- packet = pcap_next(pcap_q->pcap, &header);
- if (unlikely(packet == NULL))
- break;
- else
- mbuf = rte_pktmbuf_alloc(pcap_q->mb_pool);
- if (unlikely(mbuf == NULL))
- break;
-
- /* Now get the space available for data in the mbuf */
- 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(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,
- "PCAP packet %d bytes will not fit in mbuf (%d bytes)\n",
- header.len, buf_size);
- rte_pktmbuf_free(mbuf);
- }
- }
- pcap_q->rx_pkts += num_rx;
- return num_rx;
-}
-
-static inline void
-calculate_timestamp(struct timeval *ts) {
- uint64_t cycles;
- struct timeval cur_time;
-
- cycles = rte_get_timer_cycles() - start_cycles;
- cur_time.tv_sec = cycles / hz;
- cur_time.tv_usec = (cycles % hz) * 10e6 / hz;
- timeradd(&start_time, &cur_time, ts);
-}
-
-/*
- * Callback to handle writing packets to a pcap file.
- */
-static uint16_t
-eth_pcap_tx_dumper(void *queue,
- struct rte_mbuf **bufs,
- uint16_t nb_pkts)
-{
- unsigned i;
- struct rte_mbuf *mbuf;
- struct pcap_tx_queue *dumper_q = queue;
- uint16_t num_tx = 0;
- struct pcap_pkthdr header;
-
- if (dumper_q->dumper == NULL || nb_pkts == 0)
- return 0;
-
- /* writes the nb_pkts packets to the previously opened pcap file dumper */
- for (i = 0; i < nb_pkts; i++) {
- mbuf = bufs[i];
- calculate_timestamp(&header.ts);
- header.len = mbuf->data_len;
- header.caplen = header.len;
- pcap_dump((u_char *)dumper_q->dumper, &header,
- rte_pktmbuf_mtod(mbuf, void*));
- rte_pktmbuf_free(mbuf);
- num_tx++;
- }
-
- /*
- * Since there's no place to hook a callback when the forwarding
- * process stops and to make sure the pcap file is actually written,
- * we flush the pcap dumper within each burst.
- */
- pcap_dump_flush(dumper_q->dumper);
- dumper_q->tx_pkts += num_tx;
- dumper_q->err_pkts += nb_pkts - num_tx;
- return num_tx;
-}
-
-/*
- * Callback to handle sending packets through a real NIC.
- */
-static uint16_t
-eth_pcap_tx(void *queue,
- struct rte_mbuf **bufs,
- uint16_t nb_pkts)
-{
- unsigned i;
- int ret;
- struct rte_mbuf *mbuf;
- struct pcap_tx_queue *tx_queue = queue;
- uint16_t num_tx = 0;
-
- if (unlikely(nb_pkts == 0 || tx_queue->pcap == NULL))
- return 0;
-
- for (i = 0; i < nb_pkts; i++) {
- mbuf = bufs[i];
- 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);
- }
-
- tx_queue->tx_pkts += num_tx;
- tx_queue->err_pkts += nb_pkts - num_tx;
- return num_tx;
-}
-
-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;
-}
-
-/*
- * This function gets called when the current port gets stopped.
- * Is the only place for us to close all the tx streams dumpers.
- * If not called the dumpers will be flushed within each tx burst.
- */
-static void
-eth_dev_stop(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];
- pcap_close(tx->pcap);
- tx->pcap = NULL;
- rx->pcap = NULL;
- goto status_down;
- }
-
- for (i = 0; i < internals->nb_tx_queues; i++) {
- 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;
-}
-
-static int
-eth_dev_configure(struct rte_eth_dev *dev __rte_unused)
-{
- return 0;
-}
-
-static void
-eth_dev_info(struct rte_eth_dev *dev,
- struct rte_eth_dev_info *dev_info)
-{
- 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;
- dev_info->max_tx_queues = (uint16_t)internals->nb_tx_queues;
- dev_info->min_rx_bufsize = 0;
- dev_info->pci_dev = NULL;
-}
-
-static void
-eth_stats_get(struct rte_eth_dev *dev,
- struct rte_eth_stats *igb_stats)
-{
- unsigned i;
- unsigned long rx_total = 0, tx_total = 0, tx_err_total = 0;
- const struct pmd_internals *internal = dev->data->dev_private;
-
- 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;
- rx_total += igb_stats->q_ipackets[i];
- }
-
- for (i = 0; i < RTE_ETHDEV_QUEUE_STAT_CNTRS && i < internal->nb_tx_queues;
- i++) {
- igb_stats->q_opackets[i] = internal->tx_queue[i].tx_pkts;
- igb_stats->q_errors[i] = internal->tx_queue[i].err_pkts;
- tx_total += igb_stats->q_opackets[i];
- tx_err_total += igb_stats->q_errors[i];
- }
-
- igb_stats->ipackets = rx_total;
- igb_stats->opackets = tx_total;
- igb_stats->oerrors = tx_err_total;
-}
-
-static void
-eth_stats_reset(struct rte_eth_dev *dev)
-{
- unsigned i;
- struct pmd_internals *internal = dev->data->dev_private;
- for (i = 0; i < internal->nb_rx_queues; i++)
- internal->rx_queue[i].rx_pkts = 0;
- for (i = 0; i < internal->nb_tx_queues; i++) {
- internal->tx_queue[i].tx_pkts = 0;
- internal->tx_queue[i].err_pkts = 0;
- }
-}
-
-static void
-eth_dev_close(struct rte_eth_dev *dev __rte_unused)
-{
-}
-
-static void
-eth_queue_release(void *q __rte_unused)
-{
-}
-
-static int
-eth_link_update(struct rte_eth_dev *dev __rte_unused,
- int wait_to_complete __rte_unused)
-{
- return 0;
-}
-
-static int
-eth_rx_queue_setup(struct rte_eth_dev *dev,
- uint16_t rx_queue_id,
- uint16_t nb_rx_desc __rte_unused,
- unsigned int socket_id __rte_unused,
- const struct rte_eth_rxconf *rx_conf __rte_unused,
- struct rte_mempool *mb_pool)
-{
- struct pmd_internals *internals = dev->data->dev_private;
- 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;
-}
-
-static int
-eth_tx_queue_setup(struct rte_eth_dev *dev,
- uint16_t tx_queue_id,
- uint16_t nb_tx_desc __rte_unused,
- unsigned int socket_id __rte_unused,
- const struct rte_eth_txconf *tx_conf __rte_unused)
-{
-
- struct pmd_internals *internals = dev->data->dev_private;
- dev->data->tx_queues[tx_queue_id] = &internals->tx_queue[tx_queue_id];
- return 0;
-}
-
-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,
- },
-};
-
-/*
- * Function handler that opens the pcap file for reading a stores a
- * reference of it for use it later on.
- */
-static int
-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 *pcap = NULL;
-
- for (i = 0; i < pcaps->num_of_rx; i++) {
- if (open_single_rx_pcap(pcap_filename, &pcap) < 0)
- return -1;
-
- 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, const char *value, void *extra_args)
-{
- unsigned i;
- const char *pcap_filename = value;
- struct tx_pcaps *dumpers = extra_args;
- pcap_dumper_t *dumper;
-
- for (i = 0; i < dumpers->num_of_tx; i++) {
- if (open_single_tx_pcap(pcap_filename, &dumper) < 0)
- 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;
-}
-
-/*
- * pcap_open_live wrapper function
- */
-static inline int
-open_iface_live(const char *iface, pcap_t **pcap) {
- *pcap = pcap_open_live(iface, RTE_ETH_PCAP_SNAPLEN,
- RTE_ETH_PCAP_PROMISC, RTE_ETH_PCAP_TIMEOUT, errbuf);
-
- if (*pcap == NULL) {
- RTE_LOG(ERR, PMD, "Couldn't open %s: %s\n", iface, errbuf);
- return -1;
- }
- return 0;
-}
-
-/*
- * Opens an interface for reading and writing
- */
-static inline int
-open_rx_tx_iface(const char *key, const char *value, void *extra_args)
-{
- const char *iface = value;
- struct rx_pcaps *pcaps = extra_args;
- pcap_t *pcap = NULL;
-
- if (open_single_iface(iface, &pcap) < 0)
- return -1;
-
- pcaps->pcaps[0] = pcap;
- pcaps->names[0] = iface;
- pcaps->types[0] = key;
-
- return 0;
-}
-
-/*
- * Opens a NIC for reading packets from it
- */
-static inline int
-open_rx_iface(const char *key, const char *value, void *extra_args)
-{
- unsigned i;
- const char *iface = value;
- struct rx_pcaps *pcaps = extra_args;
- pcap_t *pcap = NULL;
-
- for (i = 0; i < pcaps->num_of_rx; i++) {
- if (open_single_iface(iface, &pcap) < 0)
- return -1;
- pcaps->pcaps[i] = pcap;
- pcaps->names[i] = iface;
- pcaps->types[i] = key;
- }
-
- return 0;
-}
-
-/*
- * Opens a NIC for writing packets to it
- */
-static int
-open_tx_iface(const char *key, const char *value, void *extra_args)
-{
- unsigned i;
- const char *iface = value;
- struct tx_pcaps *pcaps = extra_args;
- pcap_t *pcap;
-
- for (i = 0; i < pcaps->num_of_tx; i++) {
- 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 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_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);
-
- /* now do all data allocation - for eth_dev structure, dummy pci driver
- * and internal (private) data
- */
- data = rte_zmalloc_socket(name, sizeof(*data), 0, numa_node);
- if (data == NULL)
- goto error;
-
- pci_dev = rte_zmalloc_socket(name, sizeof(*pci_dev), 0, numa_node);
- if (pci_dev == NULL)
- goto error;
-
- *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(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
- * - point eth_dev_data to internals and pci_driver
- * - and point eth_dev structure to new eth_dev_data structure
- */
- /* NOTE: we'll replace the data element, of originally allocated eth_dev
- * so the rings are local per-process */
-
- (*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 = ð_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:
- rte_free(data);
- rte_free(pci_dev);
- rte_free(*internals);
-
- return -1;
-}
-
-static int
-rte_eth_from_pcaps_n_dumpers(const char *name,
- struct rx_pcaps *rx_queues,
- const unsigned nb_rx_queues,
- struct tx_pcaps *tx_queues,
- const unsigned nb_tx_queues,
- const unsigned numa_node,
- struct rte_kvargs *kvlist)
-{
- struct pmd_internals *internals = NULL;
- struct rte_eth_dev *eth_dev = NULL;
- unsigned i;
-
- /* do some parameter checking */
- if (rx_queues == NULL && nb_rx_queues > 0)
- return -1;
- if (tx_queues == NULL && nb_tx_queues > 0)
- return -1;
-
- if (rte_pmd_init_internals(name, nb_rx_queues, nb_tx_queues, numa_node,
- &internals, ð_dev, kvlist) < 0)
- return -1;
-
- for (i = 0; i < nb_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[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;
-}
-
-static int
-rte_eth_from_pcaps(const char *name,
- struct rx_pcaps *rx_queues,
- const unsigned nb_rx_queues,
- struct tx_pcaps *tx_queues,
- const unsigned nb_tx_queues,
- const unsigned numa_node,
- struct rte_kvargs *kvlist,
- int single_iface)
-{
- struct pmd_internals *internals = NULL;
- struct rte_eth_dev *eth_dev = NULL;
- unsigned i;
-
- /* do some parameter checking */
- if (rx_queues == NULL && nb_rx_queues > 0)
- return -1;
- if (tx_queues == NULL && nb_tx_queues > 0)
- return -1;
-
- if (rte_pmd_init_internals(name, nb_rx_queues, nb_tx_queues, numa_node,
- &internals, ð_dev, kvlist) < 0)
- return -1;
-
- for (i = 0; i < nb_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[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;
-
- return 0;
-}
-
-
-static int
-rte_pmd_pcap_devinit(const char *name, const char *params)
-{
- unsigned numa_node, using_dumpers = 0;
- int ret;
- struct rte_kvargs *kvlist;
- struct rx_pcaps pcaps;
- struct tx_pcaps dumpers;
-
- RTE_LOG(INFO, PMD, "Initializing pmd_pcap for %s\n", name);
-
- numa_node = rte_socket_id();
-
- gettimeofday(&start_time, NULL);
- start_cycles = rte_get_timer_cycles();
- hz = rte_get_timer_hz();
-
- kvlist = rte_kvargs_parse(params, valid_arguments);
- if (kvlist == NULL)
- return -1;
-
- /*
- * If iface argument is passed we open the NICs and use them for
- * reading / writing
- */
- if (rte_kvargs_count(kvlist, ETH_PCAP_IFACE_ARG) == 1) {
-
- ret = rte_kvargs_process(kvlist, ETH_PCAP_IFACE_ARG,
- &open_rx_tx_iface, &pcaps);
- if (ret < 0)
- 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;
- }
-
- /*
- * We check whether we want to open a RX stream from a real NIC or a
- * pcap file
- */
- if ((pcaps.num_of_rx = rte_kvargs_count(kvlist, ETH_PCAP_RX_PCAP_ARG))) {
- ret = rte_kvargs_process(kvlist, ETH_PCAP_RX_PCAP_ARG,
- &open_rx_pcap, &pcaps);
- } else {
- pcaps.num_of_rx = rte_kvargs_count(kvlist,
- ETH_PCAP_RX_IFACE_ARG);
- ret = rte_kvargs_process(kvlist, ETH_PCAP_RX_IFACE_ARG,
- &open_rx_iface, &pcaps);
- }
-
- if (ret < 0)
- goto free_kvlist;
-
- /*
- * We check whether we want to open a TX stream to a real NIC or a
- * pcap file
- */
- if ((dumpers.num_of_tx = rte_kvargs_count(kvlist,
- ETH_PCAP_TX_PCAP_ARG))) {
- ret = rte_kvargs_process(kvlist, ETH_PCAP_TX_PCAP_ARG,
- &open_tx_pcap, &dumpers);
- using_dumpers = 1;
- } else {
- dumpers.num_of_tx = rte_kvargs_count(kvlist,
- ETH_PCAP_TX_IFACE_ARG);
- ret = rte_kvargs_process(kvlist, ETH_PCAP_TX_IFACE_ARG,
- &open_tx_iface, &dumpers);
- }
-
- if (ret < 0)
- goto free_kvlist;
-
- if (using_dumpers)
- 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;
-}
-
-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);
+++ /dev/null
-DPDK_2.0 {
-
- local: *;
-};
git.droids-corp.org / dpdk.git / commitdiff