From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by dpdk.org (Postfix) with ESMTP id 001DA5A5E for ; Fri, 15 May 2015 17:57:10 +0200 (CEST) Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga103.jf.intel.com with ESMTP; 15 May 2015 08:57:10 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.13,434,1427785200"; d="scan'208";a="710767892" Received: from irvmail001.ir.intel.com ([163.33.26.43]) by fmsmga001.fm.intel.com with ESMTP; 15 May 2015 08:57:09 -0700 Received: from sivswdev01.ir.intel.com (sivswdev01.ir.intel.com [10.237.217.45]) by irvmail001.ir.intel.com (8.14.3/8.13.6/MailSET/Hub) with ESMTP id t4FFv8oC030304; Fri, 15 May 2015 16:57:08 +0100 Received: from sivswdev01.ir.intel.com (localhost [127.0.0.1]) by sivswdev01.ir.intel.com with ESMTP id t4FFv8aA016258; Fri, 15 May 2015 16:57:08 +0100 Received: (from bricha3@localhost) by sivswdev01.ir.intel.com with id t4FFv83Q016254; Fri, 15 May 2015 16:57:08 +0100 From: Bruce Richardson To: dev@dpdk.org Date: Fri, 15 May 2015 16:56:56 +0100 Message-Id: <1431705423-16134-13-git-send-email-bruce.richardson@intel.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1431705423-16134-1-git-send-email-bruce.richardson@intel.com> References: <1431450315-13179-1-git-send-email-bruce.richardson@intel.com> <1431705423-16134-1-git-send-email-bruce.richardson@intel.com> Subject: [dpdk-dev] [PATCH v2 12/19] pcap: move pcap pmd to drivers/net X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 15 May 2015 15:57:12 -0000 Move pcap pmd to drivers/net directory Signed-off-by: Bruce Richardson --- drivers/net/Makefile | 2 +- drivers/net/pcap/Makefile | 63 ++ drivers/net/pcap/rte_eth_pcap.c | 994 +++++++++++++++++++++++++++ drivers/net/pcap/rte_pmd_pcap_version.map | 4 + lib/Makefile | 1 - lib/librte_eal/bsdapp/eal/Makefile | 4 +- lib/librte_eal/linuxapp/eal/Makefile | 2 +- lib/librte_pmd_pcap/Makefile | 63 -- lib/librte_pmd_pcap/rte_eth_pcap.c | 994 --------------------------- lib/librte_pmd_pcap/rte_pmd_pcap_version.map | 4 - 10 files changed, 1065 insertions(+), 1066 deletions(-) create mode 100644 drivers/net/pcap/Makefile create mode 100644 drivers/net/pcap/rte_eth_pcap.c create mode 100644 drivers/net/pcap/rte_pmd_pcap_version.map delete mode 100644 lib/librte_pmd_pcap/Makefile delete mode 100644 lib/librte_pmd_pcap/rte_eth_pcap.c delete mode 100644 lib/librte_pmd_pcap/rte_pmd_pcap_version.map diff --git a/drivers/net/Makefile b/drivers/net/Makefile index bbed6f8..d9cba6c 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile @@ -40,8 +40,8 @@ DIRS-$(CONFIG_RTE_LIBRTE_I40E_PMD) += i40e DIRS-$(CONFIG_RTE_LIBRTE_IXGBE_PMD) += ixgbe DIRS-$(CONFIG_RTE_LIBRTE_MLX4_PMD) += mlx4 DIRS-$(CONFIG_RTE_LIBRTE_PMD_NULL) += null +DIRS-$(CONFIG_RTE_LIBRTE_PMD_PCAP) += pcap #DIRS-$(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 diff --git a/drivers/net/pcap/Makefile b/drivers/net/pcap/Makefile new file mode 100644 index 0000000..0775dbc --- /dev/null +++ b/drivers/net/pcap/Makefile @@ -0,0 +1,63 @@ +# 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 diff --git a/drivers/net/pcap/rte_eth_pcap.c b/drivers/net/pcap/rte_eth_pcap.c new file mode 100644 index 0000000..ff9b534 --- /dev/null +++ b/drivers/net/pcap/rte_eth_pcap.c @@ -0,0 +1,994 @@ +/*- + * 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 +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include + +#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); diff --git a/drivers/net/pcap/rte_pmd_pcap_version.map b/drivers/net/pcap/rte_pmd_pcap_version.map new file mode 100644 index 0000000..ef35398 --- /dev/null +++ b/drivers/net/pcap/rte_pmd_pcap_version.map @@ -0,0 +1,4 @@ +DPDK_2.0 { + + local: *; +}; diff --git a/lib/Makefile b/lib/Makefile index d4533dc..e63f1fe 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -42,7 +42,6 @@ DIRS-$(CONFIG_RTE_LIBRTE_CFGFILE) += librte_cfgfile 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-$(CONFIG_RTE_LIBRTE_PMD_XENVIRT) += librte_pmd_xenvirt diff --git a/lib/librte_eal/bsdapp/eal/Makefile b/lib/librte_eal/bsdapp/eal/Makefile index 2357cfa..c2fe933 100644 --- a/lib/librte_eal/bsdapp/eal/Makefile +++ b/lib/librte_eal/bsdapp/eal/Makefile @@ -1,6 +1,6 @@ # BSD LICENSE # -# Copyright(c) 2010-2014 Intel Corporation. All rights reserved. +# Copyright(c) 2010-2015 Intel Corporation. All rights reserved. # All rights reserved. # # Redistribution and use in source and binary forms, with or without @@ -43,7 +43,7 @@ CFLAGS += -I$(RTE_SDK)/lib/librte_mempool 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 += $(WERROR_FLAGS) -O3 EXPORT_MAP := rte_eal_version.map diff --git a/lib/librte_eal/linuxapp/eal/Makefile b/lib/librte_eal/linuxapp/eal/Makefile index 7d3cf66..fdb3656 100644 --- a/lib/librte_eal/linuxapp/eal/Makefile +++ b/lib/librte_eal/linuxapp/eal/Makefile @@ -48,7 +48,7 @@ CFLAGS += -I$(RTE_SDK)/lib/librte_malloc 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 diff --git a/lib/librte_pmd_pcap/Makefile b/lib/librte_pmd_pcap/Makefile deleted file mode 100644 index 0775dbc..0000000 --- a/lib/librte_pmd_pcap/Makefile +++ /dev/null @@ -1,63 +0,0 @@ -# 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 diff --git a/lib/librte_pmd_pcap/rte_eth_pcap.c b/lib/librte_pmd_pcap/rte_eth_pcap.c deleted file mode 100644 index ff9b534..0000000 --- a/lib/librte_pmd_pcap/rte_eth_pcap.c +++ /dev/null @@ -1,994 +0,0 @@ -/*- - * 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 -#include -#include -#include -#include -#include -#include -#include -#include - -#include - -#include - -#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); diff --git a/lib/librte_pmd_pcap/rte_pmd_pcap_version.map b/lib/librte_pmd_pcap/rte_pmd_pcap_version.map deleted file mode 100644 index ef35398..0000000 --- a/lib/librte_pmd_pcap/rte_pmd_pcap_version.map +++ /dev/null @@ -1,4 +0,0 @@ -DPDK_2.0 { - - local: *; -}; -- 2.1.0