From e6918187568dbd01842d8d1d2c808ce16a894239 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 21 Apr 2024 13:54:28 +0200 Subject: Adding upstream version 18.2.2. Signed-off-by: Daniel Baumann --- src/spdk/dpdk/drivers/net/pcap/Makefile | 32 + src/spdk/dpdk/drivers/net/pcap/meson.build | 9 + src/spdk/dpdk/drivers/net/pcap/rte_eth_pcap.c | 1588 ++++++++++++++++++++ .../dpdk/drivers/net/pcap/rte_pmd_pcap_version.map | 3 + 4 files changed, 1632 insertions(+) create mode 100644 src/spdk/dpdk/drivers/net/pcap/Makefile create mode 100644 src/spdk/dpdk/drivers/net/pcap/meson.build create mode 100644 src/spdk/dpdk/drivers/net/pcap/rte_eth_pcap.c create mode 100644 src/spdk/dpdk/drivers/net/pcap/rte_pmd_pcap_version.map (limited to 'src/spdk/dpdk/drivers/net/pcap') diff --git a/src/spdk/dpdk/drivers/net/pcap/Makefile b/src/spdk/dpdk/drivers/net/pcap/Makefile new file mode 100644 index 000000000..f243d1a0f --- /dev/null +++ b/src/spdk/dpdk/drivers/net/pcap/Makefile @@ -0,0 +1,32 @@ +# SPDX-License-Identifier: BSD-3-Clause +# Copyright(c) 2010-2014 Intel Corporation. +# Copyright(c) 2014 6WIND S.A. +# All rights reserved. + +include $(RTE_SDK)/mk/rte.vars.mk + +# +# library name +# +LIB = librte_pmd_pcap.a + +CFLAGS += -O3 +CFLAGS += $(WERROR_FLAGS) +LDLIBS += -lpcap +LDLIBS += -lrte_eal -lrte_mbuf -lrte_mempool -lrte_ring +LDLIBS += -lrte_ethdev -lrte_net -lrte_kvargs +LDLIBS += -lrte_bus_vdev + +EXPORT_MAP := rte_pmd_pcap_version.map + +# +# all source are stored in SRCS-y +# +SRCS-$(CONFIG_RTE_LIBRTE_PMD_PCAP) += rte_eth_pcap.c + +# +# Export include files +# +SYMLINK-y-include += + +include $(RTE_SDK)/mk/rte.lib.mk diff --git a/src/spdk/dpdk/drivers/net/pcap/meson.build b/src/spdk/dpdk/drivers/net/pcap/meson.build new file mode 100644 index 000000000..b680710aa --- /dev/null +++ b/src/spdk/dpdk/drivers/net/pcap/meson.build @@ -0,0 +1,9 @@ +# SPDX-License-Identifier: BSD-3-Clause +# Copyright(c) 2017 Intel Corporation + +if not dpdk_conf.has('RTE_PORT_PCAP') + build = false + reason = 'missing dependency, "libpcap"' +endif +sources = files('rte_eth_pcap.c') +ext_deps += pcap_dep diff --git a/src/spdk/dpdk/drivers/net/pcap/rte_eth_pcap.c b/src/spdk/dpdk/drivers/net/pcap/rte_eth_pcap.c new file mode 100644 index 000000000..b4c79d174 --- /dev/null +++ b/src/spdk/dpdk/drivers/net/pcap/rte_eth_pcap.c @@ -0,0 +1,1588 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2010-2016 Intel Corporation. + * Copyright(c) 2014 6WIND S.A. + * All rights reserved. + */ + +#include + +#include +#include +#include +#include + +#if defined(RTE_EXEC_ENV_FREEBSD) +#include +#include +#endif + +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#define RTE_ETH_PCAP_SNAPSHOT_LEN 65535 +#define RTE_ETH_PCAP_SNAPLEN RTE_ETHER_MAX_JUMBO_FRAME_LEN +#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_RX_IFACE_IN_ARG "rx_iface_in" +#define ETH_PCAP_TX_IFACE_ARG "tx_iface" +#define ETH_PCAP_IFACE_ARG "iface" +#define ETH_PCAP_PHY_MAC_ARG "phy_mac" +#define ETH_PCAP_INFINITE_RX_ARG "infinite_rx" + +#define ETH_PCAP_ARG_MAXLEN 64 + +#define RTE_PMD_PCAP_MAX_QUEUES 16 + +static char errbuf[PCAP_ERRBUF_SIZE]; +static struct timeval start_time; +static uint64_t start_cycles; +static uint64_t hz; +static uint8_t iface_idx; + +struct queue_stat { + volatile unsigned long pkts; + volatile unsigned long bytes; + volatile unsigned long err_pkts; +}; + +struct pcap_rx_queue { + uint16_t port_id; + uint16_t queue_id; + struct rte_mempool *mb_pool; + struct queue_stat rx_stat; + char name[PATH_MAX]; + char type[ETH_PCAP_ARG_MAXLEN]; + + /* Contains pre-generated packets to be looped through */ + struct rte_ring *pkts; +}; + +struct pcap_tx_queue { + uint16_t port_id; + uint16_t queue_id; + struct queue_stat tx_stat; + char name[PATH_MAX]; + char type[ETH_PCAP_ARG_MAXLEN]; +}; + +struct pmd_internals { + struct pcap_rx_queue rx_queue[RTE_PMD_PCAP_MAX_QUEUES]; + struct pcap_tx_queue tx_queue[RTE_PMD_PCAP_MAX_QUEUES]; + char devargs[ETH_PCAP_ARG_MAXLEN]; + struct rte_ether_addr eth_addr; + int if_index; + int single_iface; + int phy_mac; + unsigned int infinite_rx; +}; + +struct pmd_process_private { + pcap_t *rx_pcap[RTE_PMD_PCAP_MAX_QUEUES]; + pcap_t *tx_pcap[RTE_PMD_PCAP_MAX_QUEUES]; + pcap_dumper_t *tx_dumper[RTE_PMD_PCAP_MAX_QUEUES]; +}; + +struct pmd_devargs { + unsigned int num_of_queue; + struct devargs_queue { + pcap_dumper_t *dumper; + pcap_t *pcap; + const char *name; + const char *type; + } queue[RTE_PMD_PCAP_MAX_QUEUES]; + int phy_mac; +}; + +struct pmd_devargs_all { + struct pmd_devargs rx_queues; + struct pmd_devargs tx_queues; + int single_iface; + unsigned int is_tx_pcap; + unsigned int is_tx_iface; + unsigned int is_rx_pcap; + unsigned int is_rx_iface; + unsigned int infinite_rx; +}; + +static const char *valid_arguments[] = { + ETH_PCAP_RX_PCAP_ARG, + ETH_PCAP_TX_PCAP_ARG, + ETH_PCAP_RX_IFACE_ARG, + ETH_PCAP_RX_IFACE_IN_ARG, + ETH_PCAP_TX_IFACE_ARG, + ETH_PCAP_IFACE_ARG, + ETH_PCAP_PHY_MAC_ARG, + ETH_PCAP_INFINITE_RX_ARG, + NULL +}; + +static struct rte_eth_link pmd_link = { + .link_speed = ETH_SPEED_NUM_10G, + .link_duplex = ETH_LINK_FULL_DUPLEX, + .link_status = ETH_LINK_DOWN, + .link_autoneg = ETH_LINK_FIXED, +}; + +static int eth_pcap_logtype; + +#define PMD_LOG(level, fmt, args...) \ + rte_log(RTE_LOG_ ## level, eth_pcap_logtype, \ + "%s(): " fmt "\n", __func__, ##args) + +static int +eth_pcap_rx_jumbo(struct rte_mempool *mb_pool, struct rte_mbuf *mbuf, + const u_char *data, uint16_t data_len) +{ + /* Copy the first segment. */ + uint16_t len = rte_pktmbuf_tailroom(mbuf); + struct rte_mbuf *m = mbuf; + + rte_memcpy(rte_pktmbuf_append(mbuf, len), data, len); + data_len -= len; + data += len; + + while (data_len > 0) { + /* Allocate next mbuf and point to that. */ + m->next = rte_pktmbuf_alloc(mb_pool); + + if (unlikely(!m->next)) + return -1; + + m = m->next; + + /* Headroom is not needed in chained mbufs. */ + rte_pktmbuf_prepend(m, rte_pktmbuf_headroom(m)); + m->pkt_len = 0; + m->data_len = 0; + + /* Copy next segment. */ + len = RTE_MIN(rte_pktmbuf_tailroom(m), data_len); + rte_memcpy(rte_pktmbuf_append(m, len), data, len); + + mbuf->nb_segs++; + data_len -= len; + data += len; + } + + return mbuf->nb_segs; +} + +static uint16_t +eth_pcap_rx_infinite(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts) +{ + int i; + struct pcap_rx_queue *pcap_q = queue; + uint32_t rx_bytes = 0; + + if (unlikely(nb_pkts == 0)) + return 0; + + if (rte_pktmbuf_alloc_bulk(pcap_q->mb_pool, bufs, nb_pkts) != 0) + return 0; + + for (i = 0; i < nb_pkts; i++) { + struct rte_mbuf *pcap_buf; + int err = rte_ring_dequeue(pcap_q->pkts, (void **)&pcap_buf); + if (err) + return i; + + rte_memcpy(rte_pktmbuf_mtod(bufs[i], void *), + rte_pktmbuf_mtod(pcap_buf, void *), + pcap_buf->data_len); + bufs[i]->data_len = pcap_buf->data_len; + bufs[i]->pkt_len = pcap_buf->pkt_len; + bufs[i]->port = pcap_q->port_id; + rx_bytes += pcap_buf->data_len; + + /* Enqueue packet back on ring to allow infinite rx. */ + rte_ring_enqueue(pcap_q->pkts, pcap_buf); + } + + pcap_q->rx_stat.pkts += i; + pcap_q->rx_stat.bytes += rx_bytes; + + return i; +} + +static uint16_t +eth_pcap_rx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts) +{ + unsigned int i; + struct pcap_pkthdr header; + struct pmd_process_private *pp; + const u_char *packet; + struct rte_mbuf *mbuf; + struct pcap_rx_queue *pcap_q = queue; + uint16_t num_rx = 0; + uint32_t rx_bytes = 0; + pcap_t *pcap; + + pp = rte_eth_devices[pcap_q->port_id].process_private; + pcap = pp->rx_pcap[pcap_q->queue_id]; + + if (unlikely(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, &header); + if (unlikely(packet == NULL)) + break; + + mbuf = rte_pktmbuf_alloc(pcap_q->mb_pool); + if (unlikely(mbuf == NULL)) + break; + + if (header.caplen <= rte_pktmbuf_tailroom(mbuf)) { + /* pcap packet will fit in the mbuf, can copy it */ + rte_memcpy(rte_pktmbuf_mtod(mbuf, void *), packet, + header.caplen); + mbuf->data_len = (uint16_t)header.caplen; + } else { + /* Try read jumbo frame into multi mbufs. */ + if (unlikely(eth_pcap_rx_jumbo(pcap_q->mb_pool, + mbuf, + packet, + header.caplen) == -1)) { + rte_pktmbuf_free(mbuf); + break; + } + } + + mbuf->pkt_len = (uint16_t)header.caplen; + mbuf->timestamp = (uint64_t)header.ts.tv_sec * 1000000 + + header.ts.tv_usec; + mbuf->ol_flags |= PKT_RX_TIMESTAMP; + mbuf->port = pcap_q->port_id; + bufs[num_rx] = mbuf; + num_rx++; + rx_bytes += header.caplen; + } + pcap_q->rx_stat.pkts += num_rx; + pcap_q->rx_stat.bytes += rx_bytes; + + return num_rx; +} + +static uint16_t +eth_null_rx(void *queue __rte_unused, + struct rte_mbuf **bufs __rte_unused, + uint16_t nb_pkts __rte_unused) +{ + return 0; +} + +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) * 1e6 / 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 int i; + struct rte_mbuf *mbuf; + struct pmd_process_private *pp; + struct pcap_tx_queue *dumper_q = queue; + uint16_t num_tx = 0; + uint32_t tx_bytes = 0; + struct pcap_pkthdr header; + pcap_dumper_t *dumper; + unsigned char temp_data[RTE_ETH_PCAP_SNAPLEN]; + size_t len, caplen; + + pp = rte_eth_devices[dumper_q->port_id].process_private; + dumper = pp->tx_dumper[dumper_q->queue_id]; + + if (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]; + len = caplen = rte_pktmbuf_pkt_len(mbuf); + if (unlikely(!rte_pktmbuf_is_contiguous(mbuf) && + len > sizeof(temp_data))) { + caplen = sizeof(temp_data); + } + + calculate_timestamp(&header.ts); + header.len = len; + header.caplen = caplen; + /* rte_pktmbuf_read() returns a pointer to the data directly + * in the mbuf (when the mbuf is contiguous) or, otherwise, + * a pointer to temp_data after copying into it. + */ + pcap_dump((u_char *)dumper, &header, + rte_pktmbuf_read(mbuf, 0, caplen, temp_data)); + + num_tx++; + tx_bytes += caplen; + rte_pktmbuf_free(mbuf); + } + + /* + * 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); + dumper_q->tx_stat.pkts += num_tx; + dumper_q->tx_stat.bytes += tx_bytes; + dumper_q->tx_stat.err_pkts += nb_pkts - num_tx; + + return nb_pkts; +} + +/* + * Callback to handle dropping packets in the infinite rx case. + */ +static uint16_t +eth_tx_drop(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts) +{ + unsigned int i; + uint32_t tx_bytes = 0; + struct pcap_tx_queue *tx_queue = queue; + + if (unlikely(nb_pkts == 0)) + return 0; + + for (i = 0; i < nb_pkts; i++) { + tx_bytes += bufs[i]->data_len; + rte_pktmbuf_free(bufs[i]); + } + + tx_queue->tx_stat.pkts += nb_pkts; + tx_queue->tx_stat.bytes += tx_bytes; + + return i; +} + +/* + * 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 int i; + int ret; + struct rte_mbuf *mbuf; + struct pmd_process_private *pp; + struct pcap_tx_queue *tx_queue = queue; + uint16_t num_tx = 0; + uint32_t tx_bytes = 0; + pcap_t *pcap; + unsigned char temp_data[RTE_ETH_PCAP_SNAPLEN]; + size_t len; + + pp = rte_eth_devices[tx_queue->port_id].process_private; + pcap = pp->tx_pcap[tx_queue->queue_id]; + + if (unlikely(nb_pkts == 0 || pcap == NULL)) + return 0; + + for (i = 0; i < nb_pkts; i++) { + mbuf = bufs[i]; + len = rte_pktmbuf_pkt_len(mbuf); + if (unlikely(!rte_pktmbuf_is_contiguous(mbuf) && + len > sizeof(temp_data))) { + PMD_LOG(ERR, + "Dropping multi segment PCAP packet. Size (%zd) > max size (%zd).", + len, sizeof(temp_data)); + rte_pktmbuf_free(mbuf); + continue; + } + + /* rte_pktmbuf_read() returns a pointer to the data directly + * in the mbuf (when the mbuf is contiguous) or, otherwise, + * a pointer to temp_data after copying into it. + */ + ret = pcap_sendpacket(pcap, + rte_pktmbuf_read(mbuf, 0, len, temp_data), len); + if (unlikely(ret != 0)) + break; + num_tx++; + tx_bytes += len; + rte_pktmbuf_free(mbuf); + } + + tx_queue->tx_stat.pkts += num_tx; + tx_queue->tx_stat.bytes += tx_bytes; + tx_queue->tx_stat.err_pkts += i - num_tx; + + return i; +} + +/* + * 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) { + PMD_LOG(ERR, "Couldn't open %s: %s", iface, errbuf); + return -1; + } + + return 0; +} + +static int +open_single_iface(const char *iface, pcap_t **pcap) +{ + if (open_iface_live(iface, pcap) < 0) { + PMD_LOG(ERR, "Couldn't open interface %s", iface); + return -1; + } + + 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. + */ + tx_pcap = pcap_open_dead(DLT_EN10MB, RTE_ETH_PCAP_SNAPSHOT_LEN); + if (tx_pcap == NULL) { + PMD_LOG(ERR, "Couldn't create dead pcap"); + return -1; + } + + /* The dumper is created using the previous pcap_t reference */ + *dumper = pcap_dump_open(tx_pcap, pcap_filename); + if (*dumper == NULL) { + pcap_close(tx_pcap); + PMD_LOG(ERR, "Couldn't open %s for writing.", + pcap_filename); + return -1; + } + + pcap_close(tx_pcap); + return 0; +} + +static int +open_single_rx_pcap(const char *pcap_filename, pcap_t **pcap) +{ + *pcap = pcap_open_offline(pcap_filename, errbuf); + if (*pcap == NULL) { + PMD_LOG(ERR, "Couldn't open %s: %s", pcap_filename, + errbuf); + return -1; + } + + return 0; +} + +static uint64_t +count_packets_in_pcap(pcap_t **pcap, struct pcap_rx_queue *pcap_q) +{ + const u_char *packet; + struct pcap_pkthdr header; + uint64_t pcap_pkt_count = 0; + + while ((packet = pcap_next(*pcap, &header))) + pcap_pkt_count++; + + /* The pcap is reopened so it can be used as normal later. */ + pcap_close(*pcap); + *pcap = NULL; + open_single_rx_pcap(pcap_q->name, pcap); + + return pcap_pkt_count; +} + +static int +eth_dev_start(struct rte_eth_dev *dev) +{ + unsigned int i; + struct pmd_internals *internals = dev->data->dev_private; + struct pmd_process_private *pp = dev->process_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 (!pp->tx_pcap[0] && + strcmp(tx->type, ETH_PCAP_IFACE_ARG) == 0) { + if (open_single_iface(tx->name, &pp->tx_pcap[0]) < 0) + return -1; + pp->rx_pcap[0] = pp->tx_pcap[0]; + } + + goto status_up; + } + + /* If not open already, open tx pcaps/dumpers */ + for (i = 0; i < dev->data->nb_tx_queues; i++) { + tx = &internals->tx_queue[i]; + + if (!pp->tx_dumper[i] && + strcmp(tx->type, ETH_PCAP_TX_PCAP_ARG) == 0) { + if (open_single_tx_pcap(tx->name, + &pp->tx_dumper[i]) < 0) + return -1; + } else if (!pp->tx_pcap[i] && + strcmp(tx->type, ETH_PCAP_TX_IFACE_ARG) == 0) { + if (open_single_iface(tx->name, &pp->tx_pcap[i]) < 0) + return -1; + } + } + + /* If not open already, open rx pcaps */ + for (i = 0; i < dev->data->nb_rx_queues; i++) { + rx = &internals->rx_queue[i]; + + if (pp->rx_pcap[i] != NULL) + continue; + + if (strcmp(rx->type, ETH_PCAP_RX_PCAP_ARG) == 0) { + if (open_single_rx_pcap(rx->name, &pp->rx_pcap[i]) < 0) + return -1; + } else if (strcmp(rx->type, ETH_PCAP_RX_IFACE_ARG) == 0) { + if (open_single_iface(rx->name, &pp->rx_pcap[i]) < 0) + return -1; + } + } + +status_up: + for (i = 0; i < dev->data->nb_rx_queues; i++) + dev->data->rx_queue_state[i] = RTE_ETH_QUEUE_STATE_STARTED; + + for (i = 0; i < dev->data->nb_tx_queues; i++) + dev->data->tx_queue_state[i] = RTE_ETH_QUEUE_STATE_STARTED; + + dev->data->dev_link.link_status = ETH_LINK_UP; + + 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 int i; + struct pmd_internals *internals = dev->data->dev_private; + struct pmd_process_private *pp = dev->process_private; + + /* Special iface case. Single pcap is open and shared between tx/rx. */ + if (internals->single_iface) { + pcap_close(pp->tx_pcap[0]); + pp->tx_pcap[0] = NULL; + pp->rx_pcap[0] = NULL; + goto status_down; + } + + for (i = 0; i < dev->data->nb_tx_queues; i++) { + if (pp->tx_dumper[i] != NULL) { + pcap_dump_close(pp->tx_dumper[i]); + pp->tx_dumper[i] = NULL; + } + + if (pp->tx_pcap[i] != NULL) { + pcap_close(pp->tx_pcap[i]); + pp->tx_pcap[i] = NULL; + } + } + + for (i = 0; i < dev->data->nb_rx_queues; i++) { + if (pp->rx_pcap[i] != NULL) { + pcap_close(pp->rx_pcap[i]); + pp->rx_pcap[i] = NULL; + } + } + +status_down: + for (i = 0; i < dev->data->nb_rx_queues; i++) + dev->data->rx_queue_state[i] = RTE_ETH_QUEUE_STATE_STOPPED; + + for (i = 0; i < dev->data->nb_tx_queues; i++) + dev->data->tx_queue_state[i] = RTE_ETH_QUEUE_STATE_STOPPED; + + dev->data->dev_link.link_status = ETH_LINK_DOWN; +} + +static int +eth_dev_configure(struct rte_eth_dev *dev __rte_unused) +{ + return 0; +} + +static int +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->if_index = internals->if_index; + dev_info->max_mac_addrs = 1; + dev_info->max_rx_pktlen = (uint32_t) -1; + dev_info->max_rx_queues = dev->data->nb_rx_queues; + dev_info->max_tx_queues = dev->data->nb_tx_queues; + dev_info->min_rx_bufsize = 0; + + return 0; +} + +static int +eth_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats) +{ + unsigned int i; + unsigned long rx_packets_total = 0, rx_bytes_total = 0; + unsigned long tx_packets_total = 0, tx_bytes_total = 0; + unsigned long tx_packets_err_total = 0; + const struct pmd_internals *internal = dev->data->dev_private; + + for (i = 0; i < RTE_ETHDEV_QUEUE_STAT_CNTRS && + i < dev->data->nb_rx_queues; i++) { + stats->q_ipackets[i] = internal->rx_queue[i].rx_stat.pkts; + stats->q_ibytes[i] = internal->rx_queue[i].rx_stat.bytes; + rx_packets_total += stats->q_ipackets[i]; + rx_bytes_total += stats->q_ibytes[i]; + } + + for (i = 0; i < RTE_ETHDEV_QUEUE_STAT_CNTRS && + i < dev->data->nb_tx_queues; i++) { + stats->q_opackets[i] = internal->tx_queue[i].tx_stat.pkts; + stats->q_obytes[i] = internal->tx_queue[i].tx_stat.bytes; + tx_packets_total += stats->q_opackets[i]; + tx_bytes_total += stats->q_obytes[i]; + tx_packets_err_total += internal->tx_queue[i].tx_stat.err_pkts; + } + + stats->ipackets = rx_packets_total; + stats->ibytes = rx_bytes_total; + stats->opackets = tx_packets_total; + stats->obytes = tx_bytes_total; + stats->oerrors = tx_packets_err_total; + + return 0; +} + +static int +eth_stats_reset(struct rte_eth_dev *dev) +{ + unsigned int i; + struct pmd_internals *internal = dev->data->dev_private; + + for (i = 0; i < dev->data->nb_rx_queues; i++) { + internal->rx_queue[i].rx_stat.pkts = 0; + internal->rx_queue[i].rx_stat.bytes = 0; + } + + for (i = 0; i < dev->data->nb_tx_queues; i++) { + internal->tx_queue[i].tx_stat.pkts = 0; + internal->tx_queue[i].tx_stat.bytes = 0; + internal->tx_queue[i].tx_stat.err_pkts = 0; + } + + return 0; +} + +static void +eth_dev_close(struct rte_eth_dev *dev) +{ + unsigned int i; + struct pmd_internals *internals = dev->data->dev_private; + + /* Device wide flag, but cleanup must be performed per queue. */ + if (internals->infinite_rx) { + for (i = 0; i < dev->data->nb_rx_queues; i++) { + struct pcap_rx_queue *pcap_q = &internals->rx_queue[i]; + struct rte_mbuf *pcap_buf; + + while (!rte_ring_dequeue(pcap_q->pkts, + (void **)&pcap_buf)) + rte_pktmbuf_free(pcap_buf); + + rte_ring_free(pcap_q->pkts); + } + } + +} + +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; + pcap_q->port_id = dev->data->port_id; + pcap_q->queue_id = rx_queue_id; + dev->data->rx_queues[rx_queue_id] = pcap_q; + + if (internals->infinite_rx) { + struct pmd_process_private *pp; + char ring_name[NAME_MAX]; + static uint32_t ring_number; + uint64_t pcap_pkt_count = 0; + struct rte_mbuf *bufs[1]; + pcap_t **pcap; + + pp = rte_eth_devices[pcap_q->port_id].process_private; + pcap = &pp->rx_pcap[pcap_q->queue_id]; + + if (unlikely(*pcap == NULL)) + return -ENOENT; + + pcap_pkt_count = count_packets_in_pcap(pcap, pcap_q); + + snprintf(ring_name, sizeof(ring_name), "PCAP_RING%" PRIu16, + ring_number); + + pcap_q->pkts = rte_ring_create(ring_name, + rte_align64pow2(pcap_pkt_count + 1), 0, + RING_F_SP_ENQ | RING_F_SC_DEQ); + ring_number++; + if (!pcap_q->pkts) + return -ENOENT; + + /* Fill ring with packets from PCAP file one by one. */ + while (eth_pcap_rx(pcap_q, bufs, 1)) { + /* Check for multiseg mbufs. */ + if (bufs[0]->nb_segs != 1) { + rte_pktmbuf_free(*bufs); + + while (!rte_ring_dequeue(pcap_q->pkts, + (void **)bufs)) + rte_pktmbuf_free(*bufs); + + rte_ring_free(pcap_q->pkts); + PMD_LOG(ERR, "Multiseg mbufs are not supported in infinite_rx " + "mode."); + return -EINVAL; + } + + rte_ring_enqueue_bulk(pcap_q->pkts, + (void * const *)bufs, 1, NULL); + } + /* + * Reset the stats for this queue since eth_pcap_rx calls above + * didn't result in the application receiving packets. + */ + pcap_q->rx_stat.pkts = 0; + pcap_q->rx_stat.bytes = 0; + } + + 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; + struct pcap_tx_queue *pcap_q = &internals->tx_queue[tx_queue_id]; + + pcap_q->port_id = dev->data->port_id; + pcap_q->queue_id = tx_queue_id; + dev->data->tx_queues[tx_queue_id] = pcap_q; + + return 0; +} + +static int +eth_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id) +{ + dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STARTED; + + return 0; +} + +static int +eth_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id) +{ + dev->data->tx_queue_state[tx_queue_id] = RTE_ETH_QUEUE_STATE_STARTED; + + return 0; +} + +static int +eth_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id) +{ + dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED; + + return 0; +} + +static int +eth_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id) +{ + dev->data->tx_queue_state[tx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED; + + 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_start = eth_rx_queue_start, + .tx_queue_start = eth_tx_queue_start, + .rx_queue_stop = eth_rx_queue_stop, + .tx_queue_stop = eth_tx_queue_stop, + .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 int +add_queue(struct pmd_devargs *pmd, const char *name, const char *type, + pcap_t *pcap, pcap_dumper_t *dumper) +{ + if (pmd->num_of_queue >= RTE_PMD_PCAP_MAX_QUEUES) + return -1; + if (pcap) + pmd->queue[pmd->num_of_queue].pcap = pcap; + if (dumper) + pmd->queue[pmd->num_of_queue].dumper = dumper; + pmd->queue[pmd->num_of_queue].name = name; + pmd->queue[pmd->num_of_queue].type = type; + pmd->num_of_queue++; + return 0; +} + +/* + * 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) +{ + const char *pcap_filename = value; + struct pmd_devargs *rx = extra_args; + pcap_t *pcap = NULL; + + if (open_single_rx_pcap(pcap_filename, &pcap) < 0) + return -1; + + if (add_queue(rx, pcap_filename, key, pcap, NULL) < 0) { + pcap_close(pcap); + 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) +{ + const char *pcap_filename = value; + struct pmd_devargs *dumpers = extra_args; + pcap_dumper_t *dumper; + + if (open_single_tx_pcap(pcap_filename, &dumper) < 0) + return -1; + + if (add_queue(dumpers, pcap_filename, key, NULL, dumper) < 0) { + pcap_dump_close(dumper); + 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 pmd_devargs *tx = extra_args; + pcap_t *pcap = NULL; + + if (open_single_iface(iface, &pcap) < 0) + return -1; + + tx->queue[0].pcap = pcap; + tx->queue[0].name = iface; + tx->queue[0].type = key; + + return 0; +} + +static inline int +set_iface_direction(const char *iface, pcap_t *pcap, + pcap_direction_t direction) +{ + const char *direction_str = (direction == PCAP_D_IN) ? "IN" : "OUT"; + if (pcap_setdirection(pcap, direction) < 0) { + PMD_LOG(ERR, "Setting %s pcap direction %s failed - %s\n", + iface, direction_str, pcap_geterr(pcap)); + return -1; + } + PMD_LOG(INFO, "Setting %s pcap direction %s\n", + iface, direction_str); + return 0; +} + +static inline int +open_iface(const char *key, const char *value, void *extra_args) +{ + const char *iface = value; + struct pmd_devargs *pmd = extra_args; + pcap_t *pcap = NULL; + + if (open_single_iface(iface, &pcap) < 0) + return -1; + if (add_queue(pmd, iface, key, pcap, NULL) < 0) { + pcap_close(pcap); + return -1; + } + + 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) +{ + int ret = open_iface(key, value, extra_args); + if (ret < 0) + return ret; + if (strcmp(key, ETH_PCAP_RX_IFACE_IN_ARG) == 0) { + struct pmd_devargs *pmd = extra_args; + unsigned int qid = pmd->num_of_queue - 1; + + set_iface_direction(pmd->queue[qid].name, + pmd->queue[qid].pcap, + PCAP_D_IN); + } + + return 0; +} + +static inline int +rx_iface_args_process(const char *key, const char *value, void *extra_args) +{ + if (strcmp(key, ETH_PCAP_RX_IFACE_ARG) == 0 || + strcmp(key, ETH_PCAP_RX_IFACE_IN_ARG) == 0) + return open_rx_iface(key, value, extra_args); + + return 0; +} + +/* + * Opens a NIC for writing packets to it + */ +static int +open_tx_iface(const char *key, const char *value, void *extra_args) +{ + return open_iface(key, value, extra_args); +} + +static int +select_phy_mac(const char *key __rte_unused, const char *value, + void *extra_args) +{ + if (extra_args) { + const int phy_mac = atoi(value); + int *enable_phy_mac = extra_args; + + if (phy_mac) + *enable_phy_mac = 1; + } + return 0; +} + +static int +get_infinite_rx_arg(const char *key __rte_unused, + const char *value, void *extra_args) +{ + if (extra_args) { + const int infinite_rx = atoi(value); + int *enable_infinite_rx = extra_args; + + if (infinite_rx > 0) + *enable_infinite_rx = 1; + } + return 0; +} + +static int +pmd_init_internals(struct rte_vdev_device *vdev, + const unsigned int nb_rx_queues, + const unsigned int nb_tx_queues, + struct pmd_internals **internals, + struct rte_eth_dev **eth_dev) +{ + struct rte_eth_dev_data *data; + struct pmd_process_private *pp; + unsigned int numa_node = vdev->device.numa_node; + + PMD_LOG(INFO, "Creating pcap-backed ethdev on numa socket %d", + numa_node); + + pp = (struct pmd_process_private *) + rte_zmalloc(NULL, sizeof(struct pmd_process_private), + RTE_CACHE_LINE_SIZE); + + if (pp == NULL) { + PMD_LOG(ERR, + "Failed to allocate memory for process private"); + return -1; + } + + /* reserve an ethdev entry */ + *eth_dev = rte_eth_vdev_allocate(vdev, sizeof(**internals)); + if (!(*eth_dev)) { + rte_free(pp); + return -1; + } + (*eth_dev)->process_private = pp; + /* now put it all together + * - store queue data in internals, + * - store numa_node info in eth_dev + * - point eth_dev_data to internals + * - and point eth_dev structure to new eth_dev_data structure + */ + *internals = (*eth_dev)->data->dev_private; + /* + * Interface MAC = 02:70:63:61:70: + * derived from: 'locally administered':'p':'c':'a':'p':'iface_idx' + * where the middle 4 characters are converted to hex. + */ + (*internals)->eth_addr = (struct rte_ether_addr) { + .addr_bytes = { 0x02, 0x70, 0x63, 0x61, 0x70, iface_idx++ } + }; + (*internals)->phy_mac = 0; + data = (*eth_dev)->data; + 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 = &(*internals)->eth_addr; + data->promiscuous = 1; + data->all_multicast = 1; + + /* + * NOTE: we'll replace the data element, of originally allocated + * eth_dev so the rings are local per-process + */ + (*eth_dev)->dev_ops = &ops; + + strlcpy((*internals)->devargs, rte_vdev_device_args(vdev), + ETH_PCAP_ARG_MAXLEN); + + return 0; +} + +static int +eth_pcap_update_mac(const char *if_name, struct rte_eth_dev *eth_dev, + const unsigned int numa_node) +{ +#if defined(RTE_EXEC_ENV_LINUX) + void *mac_addrs; + struct ifreq ifr; + int if_fd = socket(AF_INET, SOCK_DGRAM, 0); + + if (if_fd == -1) + return -1; + + rte_strscpy(ifr.ifr_name, if_name, sizeof(ifr.ifr_name)); + if (ioctl(if_fd, SIOCGIFHWADDR, &ifr)) { + close(if_fd); + return -1; + } + + mac_addrs = rte_zmalloc_socket(NULL, RTE_ETHER_ADDR_LEN, 0, numa_node); + if (!mac_addrs) { + close(if_fd); + return -1; + } + + PMD_LOG(INFO, "Setting phy MAC for %s", if_name); + eth_dev->data->mac_addrs = mac_addrs; + rte_memcpy(eth_dev->data->mac_addrs[0].addr_bytes, + ifr.ifr_hwaddr.sa_data, RTE_ETHER_ADDR_LEN); + + close(if_fd); + + return 0; + +#elif defined(RTE_EXEC_ENV_FREEBSD) + void *mac_addrs; + struct if_msghdr *ifm; + struct sockaddr_dl *sdl; + int mib[6]; + size_t len = 0; + char *buf; + + mib[0] = CTL_NET; + mib[1] = AF_ROUTE; + mib[2] = 0; + mib[3] = AF_LINK; + mib[4] = NET_RT_IFLIST; + mib[5] = if_nametoindex(if_name); + + if (sysctl(mib, 6, NULL, &len, NULL, 0) < 0) + return -1; + + if (len == 0) + return -1; + + buf = rte_malloc(NULL, len, 0); + if (!buf) + return -1; + + if (sysctl(mib, 6, buf, &len, NULL, 0) < 0) { + rte_free(buf); + return -1; + } + ifm = (struct if_msghdr *)buf; + sdl = (struct sockaddr_dl *)(ifm + 1); + + mac_addrs = rte_zmalloc_socket(NULL, RTE_ETHER_ADDR_LEN, 0, numa_node); + if (!mac_addrs) { + rte_free(buf); + return -1; + } + + PMD_LOG(INFO, "Setting phy MAC for %s", if_name); + eth_dev->data->mac_addrs = mac_addrs; + rte_memcpy(eth_dev->data->mac_addrs[0].addr_bytes, + LLADDR(sdl), RTE_ETHER_ADDR_LEN); + + rte_free(buf); + + return 0; +#else + return -1; +#endif +} + +static int +eth_from_pcaps_common(struct rte_vdev_device *vdev, + struct pmd_devargs_all *devargs_all, + struct pmd_internals **internals, struct rte_eth_dev **eth_dev) +{ + struct pmd_process_private *pp; + struct pmd_devargs *rx_queues = &devargs_all->rx_queues; + struct pmd_devargs *tx_queues = &devargs_all->tx_queues; + const unsigned int nb_rx_queues = rx_queues->num_of_queue; + const unsigned int nb_tx_queues = tx_queues->num_of_queue; + unsigned int i; + + if (pmd_init_internals(vdev, nb_rx_queues, nb_tx_queues, internals, + eth_dev) < 0) + return -1; + + pp = (*eth_dev)->process_private; + for (i = 0; i < nb_rx_queues; i++) { + struct pcap_rx_queue *rx = &(*internals)->rx_queue[i]; + struct devargs_queue *queue = &rx_queues->queue[i]; + + pp->rx_pcap[i] = queue->pcap; + strlcpy(rx->name, queue->name, sizeof(rx->name)); + strlcpy(rx->type, queue->type, sizeof(rx->type)); + } + + for (i = 0; i < nb_tx_queues; i++) { + struct pcap_tx_queue *tx = &(*internals)->tx_queue[i]; + struct devargs_queue *queue = &tx_queues->queue[i]; + + pp->tx_dumper[i] = queue->dumper; + pp->tx_pcap[i] = queue->pcap; + strlcpy(tx->name, queue->name, sizeof(tx->name)); + strlcpy(tx->type, queue->type, sizeof(tx->type)); + } + + return 0; +} + +static int +eth_from_pcaps(struct rte_vdev_device *vdev, + struct pmd_devargs_all *devargs_all) +{ + struct pmd_internals *internals = NULL; + struct rte_eth_dev *eth_dev = NULL; + struct pmd_devargs *rx_queues = &devargs_all->rx_queues; + int single_iface = devargs_all->single_iface; + unsigned int infinite_rx = devargs_all->infinite_rx; + int ret; + + ret = eth_from_pcaps_common(vdev, devargs_all, &internals, ð_dev); + + if (ret < 0) + return ret; + + /* store weather we are using a single interface for rx/tx or not */ + internals->single_iface = single_iface; + + if (single_iface) { + internals->if_index = if_nametoindex(rx_queues->queue[0].name); + + /* phy_mac arg is applied only only if "iface" devarg is provided */ + if (rx_queues->phy_mac) { + int ret = eth_pcap_update_mac(rx_queues->queue[0].name, + eth_dev, vdev->device.numa_node); + if (ret == 0) + internals->phy_mac = 1; + } + } + + internals->infinite_rx = infinite_rx; + /* Assign rx ops. */ + if (infinite_rx) + eth_dev->rx_pkt_burst = eth_pcap_rx_infinite; + else if (devargs_all->is_rx_pcap || devargs_all->is_rx_iface || + single_iface) + eth_dev->rx_pkt_burst = eth_pcap_rx; + else + eth_dev->rx_pkt_burst = eth_null_rx; + + /* Assign tx ops. */ + if (devargs_all->is_tx_pcap) + eth_dev->tx_pkt_burst = eth_pcap_tx_dumper; + else if (devargs_all->is_tx_iface || single_iface) + eth_dev->tx_pkt_burst = eth_pcap_tx; + else + eth_dev->tx_pkt_burst = eth_tx_drop; + + rte_eth_dev_probing_finish(eth_dev); + return 0; +} + +static int +pmd_pcap_probe(struct rte_vdev_device *dev) +{ + const char *name; + struct rte_kvargs *kvlist; + struct pmd_devargs pcaps = {0}; + struct pmd_devargs dumpers = {0}; + struct rte_eth_dev *eth_dev = NULL; + struct pmd_internals *internal; + int ret = 0; + + struct pmd_devargs_all devargs_all = { + .single_iface = 0, + .is_tx_pcap = 0, + .is_tx_iface = 0, + .infinite_rx = 0, + }; + + name = rte_vdev_device_name(dev); + PMD_LOG(INFO, "Initializing pmd_pcap for %s", name); + + gettimeofday(&start_time, NULL); + start_cycles = rte_get_timer_cycles(); + hz = rte_get_timer_hz(); + + if (rte_eal_process_type() == RTE_PROC_SECONDARY) { + eth_dev = rte_eth_dev_attach_secondary(name); + if (!eth_dev) { + PMD_LOG(ERR, "Failed to probe %s", name); + return -1; + } + + internal = eth_dev->data->dev_private; + + kvlist = rte_kvargs_parse(internal->devargs, valid_arguments); + if (kvlist == NULL) + return -1; + } else { + kvlist = rte_kvargs_parse(rte_vdev_device_args(dev), + 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.queue[0] = pcaps.queue[0]; + + ret = rte_kvargs_process(kvlist, ETH_PCAP_PHY_MAC_ARG, + &select_phy_mac, &pcaps.phy_mac); + if (ret < 0) + goto free_kvlist; + + dumpers.phy_mac = pcaps.phy_mac; + + devargs_all.single_iface = 1; + pcaps.num_of_queue = 1; + dumpers.num_of_queue = 1; + + goto create_eth; + } + + /* + * We check whether we want to open a RX stream from a real NIC, a + * pcap file or open a dummy RX stream + */ + devargs_all.is_rx_pcap = + rte_kvargs_count(kvlist, ETH_PCAP_RX_PCAP_ARG) ? 1 : 0; + devargs_all.is_rx_iface = + rte_kvargs_count(kvlist, ETH_PCAP_RX_IFACE_ARG) ? 1 : 0; + pcaps.num_of_queue = 0; + + devargs_all.is_tx_pcap = + rte_kvargs_count(kvlist, ETH_PCAP_TX_PCAP_ARG) ? 1 : 0; + devargs_all.is_tx_iface = + rte_kvargs_count(kvlist, ETH_PCAP_TX_IFACE_ARG) ? 1 : 0; + dumpers.num_of_queue = 0; + + if (devargs_all.is_rx_pcap) { + /* + * We check whether we want to infinitely rx the pcap file. + */ + unsigned int infinite_rx_arg_cnt = rte_kvargs_count(kvlist, + ETH_PCAP_INFINITE_RX_ARG); + + if (infinite_rx_arg_cnt == 1) { + ret = rte_kvargs_process(kvlist, + ETH_PCAP_INFINITE_RX_ARG, + &get_infinite_rx_arg, + &devargs_all.infinite_rx); + if (ret < 0) + goto free_kvlist; + PMD_LOG(INFO, "infinite_rx has been %s for %s", + devargs_all.infinite_rx ? "enabled" : "disabled", + name); + + } else if (infinite_rx_arg_cnt > 1) { + PMD_LOG(WARNING, "infinite_rx has not been enabled since the " + "argument has been provided more than once " + "for %s", name); + } + + ret = rte_kvargs_process(kvlist, ETH_PCAP_RX_PCAP_ARG, + &open_rx_pcap, &pcaps); + } else if (devargs_all.is_rx_iface) { + ret = rte_kvargs_process(kvlist, NULL, + &rx_iface_args_process, &pcaps); + } else if (devargs_all.is_tx_iface || devargs_all.is_tx_pcap) { + unsigned int i; + + /* Count number of tx queue args passed before dummy rx queue + * creation so a dummy rx queue can be created for each tx queue + */ + unsigned int num_tx_queues = + (rte_kvargs_count(kvlist, ETH_PCAP_TX_PCAP_ARG) + + rte_kvargs_count(kvlist, ETH_PCAP_TX_IFACE_ARG)); + + PMD_LOG(INFO, "Creating null rx queue since no rx queues were provided."); + + /* Creating a dummy rx queue for each tx queue passed */ + for (i = 0; i < num_tx_queues; i++) + ret = add_queue(&pcaps, "dummy_rx", "rx_null", NULL, + NULL); + } else { + PMD_LOG(ERR, "Error - No rx or tx queues provided"); + ret = -ENOENT; + } + if (ret < 0) + goto free_kvlist; + + /* + * We check whether we want to open a TX stream to a real NIC, + * a pcap file, or drop packets on tx + */ + if (devargs_all.is_tx_pcap) { + ret = rte_kvargs_process(kvlist, ETH_PCAP_TX_PCAP_ARG, + &open_tx_pcap, &dumpers); + } else if (devargs_all.is_tx_iface) { + ret = rte_kvargs_process(kvlist, ETH_PCAP_TX_IFACE_ARG, + &open_tx_iface, &dumpers); + } else { + unsigned int i; + + PMD_LOG(INFO, "Dropping packets on tx since no tx queues were provided."); + + /* Add 1 dummy queue per rxq which counts and drops packets. */ + for (i = 0; i < pcaps.num_of_queue; i++) + ret = add_queue(&dumpers, "dummy_tx", "tx_drop", NULL, + NULL); + } + + if (ret < 0) + goto free_kvlist; + +create_eth: + if (rte_eal_process_type() == RTE_PROC_SECONDARY) { + struct pmd_process_private *pp; + unsigned int i; + + internal = eth_dev->data->dev_private; + pp = (struct pmd_process_private *) + rte_zmalloc(NULL, + sizeof(struct pmd_process_private), + RTE_CACHE_LINE_SIZE); + + if (pp == NULL) { + PMD_LOG(ERR, + "Failed to allocate memory for process private"); + ret = -1; + goto free_kvlist; + } + + eth_dev->dev_ops = &ops; + eth_dev->device = &dev->device; + + /* setup process private */ + for (i = 0; i < pcaps.num_of_queue; i++) + pp->rx_pcap[i] = pcaps.queue[i].pcap; + + for (i = 0; i < dumpers.num_of_queue; i++) { + pp->tx_dumper[i] = dumpers.queue[i].dumper; + pp->tx_pcap[i] = dumpers.queue[i].pcap; + } + + eth_dev->process_private = pp; + eth_dev->rx_pkt_burst = eth_pcap_rx; + if (devargs_all.is_tx_pcap) + eth_dev->tx_pkt_burst = eth_pcap_tx_dumper; + else + eth_dev->tx_pkt_burst = eth_pcap_tx; + + rte_eth_dev_probing_finish(eth_dev); + goto free_kvlist; + } + + devargs_all.rx_queues = pcaps; + devargs_all.tx_queues = dumpers; + + ret = eth_from_pcaps(dev, &devargs_all); + +free_kvlist: + rte_kvargs_free(kvlist); + + return ret; +} + +static int +pmd_pcap_remove(struct rte_vdev_device *dev) +{ + struct pmd_internals *internals = NULL; + struct rte_eth_dev *eth_dev = NULL; + + PMD_LOG(INFO, "Closing pcap ethdev on numa socket %d", + rte_socket_id()); + + if (!dev) + return -1; + + /* reserve an ethdev entry */ + eth_dev = rte_eth_dev_allocated(rte_vdev_device_name(dev)); + if (eth_dev == NULL) + return -1; + + if (rte_eal_process_type() == RTE_PROC_PRIMARY) { + internals = eth_dev->data->dev_private; + if (internals != NULL && internals->phy_mac == 0) + /* not dynamically allocated, must not be freed */ + eth_dev->data->mac_addrs = NULL; + } + + eth_dev_close(eth_dev); + + rte_free(eth_dev->process_private); + rte_eth_dev_release_port(eth_dev); + + return 0; +} + +static struct rte_vdev_driver pmd_pcap_drv = { + .probe = pmd_pcap_probe, + .remove = pmd_pcap_remove, +}; + +RTE_PMD_REGISTER_VDEV(net_pcap, pmd_pcap_drv); +RTE_PMD_REGISTER_ALIAS(net_pcap, eth_pcap); +RTE_PMD_REGISTER_PARAM_STRING(net_pcap, + ETH_PCAP_RX_PCAP_ARG "= " + ETH_PCAP_TX_PCAP_ARG "= " + ETH_PCAP_RX_IFACE_ARG "= " + ETH_PCAP_RX_IFACE_IN_ARG "= " + ETH_PCAP_TX_IFACE_ARG "= " + ETH_PCAP_IFACE_ARG "= " + ETH_PCAP_PHY_MAC_ARG "=" + ETH_PCAP_INFINITE_RX_ARG "=<0|1>"); + +RTE_INIT(eth_pcap_init_log) +{ + eth_pcap_logtype = rte_log_register("pmd.net.pcap"); + if (eth_pcap_logtype >= 0) + rte_log_set_level(eth_pcap_logtype, RTE_LOG_NOTICE); +} diff --git a/src/spdk/dpdk/drivers/net/pcap/rte_pmd_pcap_version.map b/src/spdk/dpdk/drivers/net/pcap/rte_pmd_pcap_version.map new file mode 100644 index 000000000..f9f17e4f6 --- /dev/null +++ b/src/spdk/dpdk/drivers/net/pcap/rte_pmd_pcap_version.map @@ -0,0 +1,3 @@ +DPDK_20.0 { + local: *; +}; -- cgit v1.2.3