X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fpcap%2Frte_eth_pcap.c;h=075e3bed55e3ef545482fb06d46daf1c5dec1163;hb=8b00f426eb6614d5c01fec95cdc271700f85f886;hp=ce8782dfba4778310ec09348502f8a6a707dcfab;hpb=8fb9e2bbf9958351cb8c2ed5bee6e68613dfaae2;p=dpdk.git diff --git a/drivers/net/pcap/rte_eth_pcap.c b/drivers/net/pcap/rte_eth_pcap.c index ce8782dfba..075e3bed55 100644 --- a/drivers/net/pcap/rte_eth_pcap.c +++ b/drivers/net/pcap/rte_eth_pcap.c @@ -1,7 +1,7 @@ /*- * BSD LICENSE * - * Copyright(c) 2010-2015 Intel Corporation. All rights reserved. + * Copyright(c) 2010-2016 Intel Corporation. All rights reserved. * Copyright(c) 2014 6WIND S.A. * All rights reserved. * @@ -33,23 +33,23 @@ */ #include -#include -#include -#include -#include -#include -#include -#include -#include #include #include +#include +#include +#include +#include +#include +#include + #define RTE_ETH_PCAP_SNAPSHOT_LEN 65535 #define RTE_ETH_PCAP_SNAPLEN 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" @@ -58,19 +58,25 @@ #define ETH_PCAP_ARG_MAXLEN 64 +#define RTE_PMD_PCAP_MAX_QUEUES 16 + static char errbuf[PCAP_ERRBUF_SIZE]; static unsigned char tx_pcap_data[RTE_ETH_PCAP_SNAPLEN]; static struct timeval start_time; static uint64_t start_cycles; static uint64_t hz; +struct queue_stat { + volatile unsigned long pkts; + volatile unsigned long bytes; + volatile unsigned long err_pkts; +}; + struct pcap_rx_queue { pcap_t *pcap; uint8_t in_port; struct rte_mempool *mb_pool; - volatile unsigned long rx_pkts; - volatile unsigned long rx_bytes; - volatile unsigned long err_pkts; + struct queue_stat rx_stat; char name[PATH_MAX]; char type[ETH_PCAP_ARG_MAXLEN]; }; @@ -78,38 +84,29 @@ struct pcap_rx_queue { struct pcap_tx_queue { pcap_dumper_t *dumper; pcap_t *pcap; - volatile unsigned long tx_pkts; - volatile unsigned long tx_bytes; - volatile unsigned long err_pkts; + struct queue_stat tx_stat; 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; + struct pcap_rx_queue rx_queue[RTE_PMD_PCAP_MAX_QUEUES]; + struct pcap_tx_queue tx_queue[RTE_PMD_PCAP_MAX_QUEUES]; int if_index; int single_iface; }; -const char *valid_arguments[] = { +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]; +}; + +static const char *valid_arguments[] = { ETH_PCAP_RX_PCAP_ARG, ETH_PCAP_TX_PCAP_ARG, ETH_PCAP_RX_IFACE_ARG, @@ -118,28 +115,24 @@ const char *valid_arguments[] = { NULL }; -static int open_single_tx_pcap(const char *pcap_filename, pcap_dumper_t **dumper); -static int open_single_rx_pcap(const char *pcap_filename, pcap_t **pcap); -static int open_single_iface(const char *iface, pcap_t **pcap); +static struct ether_addr eth_addr = { + .addr_bytes = { 0, 0, 0, 0x1, 0x2, 0x3 } +}; -static 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_speed = ETH_SPEED_NUM_10G, .link_duplex = ETH_LINK_FULL_DUPLEX, - .link_status = 0 + .link_status = ETH_LINK_DOWN, + .link_autoneg = ETH_LINK_SPEED_FIXED, }; static int -eth_pcap_rx_jumbo(struct rte_mempool *mb_pool, - struct rte_mbuf *mbuf, - const u_char *data, - uint16_t data_len) +eth_pcap_rx_jumbo(struct rte_mempool *mb_pool, struct rte_mbuf *mbuf, + const u_char *data, uint16_t data_len) { - struct rte_mbuf *m = mbuf; - /* 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; @@ -179,7 +172,7 @@ eth_pcap_gather_data(unsigned char *data, struct rte_mbuf *mbuf) while (mbuf) { rte_memcpy(data + data_len, rte_pktmbuf_mtod(mbuf, void *), - mbuf->data_len); + mbuf->data_len); data_len += mbuf->data_len; mbuf = mbuf->next; @@ -187,11 +180,9 @@ eth_pcap_gather_data(unsigned char *data, struct rte_mbuf *mbuf) } static uint16_t -eth_pcap_rx(void *queue, - struct rte_mbuf **bufs, - uint16_t nb_pkts) +eth_pcap_rx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts) { - unsigned i; + unsigned int i; struct pcap_pkthdr header; const u_char *packet; struct rte_mbuf *mbuf; @@ -211,37 +202,40 @@ eth_pcap_rx(void *queue, packet = pcap_next(pcap_q->pcap, &header); if (unlikely(packet == NULL)) break; - else - mbuf = rte_pktmbuf_alloc(pcap_q->mb_pool); + + 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); + buf_size = 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 */ + if (header.caplen <= buf_size) { + /* pcap packet will fit in the mbuf, can copy it */ rte_memcpy(rte_pktmbuf_mtod(mbuf, void *), packet, - header.len); - mbuf->data_len = (uint16_t)header.len; + 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.len) == -1)) + header.caplen) == -1)) { + rte_pktmbuf_free(mbuf); break; + } } - mbuf->pkt_len = (uint16_t)header.len; + mbuf->pkt_len = (uint16_t)header.caplen; mbuf->port = pcap_q->in_port; bufs[num_rx] = mbuf; num_rx++; - rx_bytes += header.len; + rx_bytes += header.caplen; } - pcap_q->rx_pkts += num_rx; - pcap_q->rx_bytes += rx_bytes; + pcap_q->rx_stat.pkts += num_rx; + pcap_q->rx_stat.bytes += rx_bytes; + return num_rx; } @@ -252,7 +246,7 @@ calculate_timestamp(struct timeval *ts) { cycles = rte_get_timer_cycles() - start_cycles; cur_time.tv_sec = cycles / hz; - cur_time.tv_usec = (cycles % hz) * 10e6 / hz; + cur_time.tv_usec = (cycles % hz) * 1e6 / hz; timeradd(&start_time, &cur_time, ts); } @@ -260,11 +254,9 @@ calculate_timestamp(struct timeval *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) +eth_pcap_tx_dumper(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts) { - unsigned i; + unsigned int i; struct rte_mbuf *mbuf; struct pcap_tx_queue *dumper_q = queue; uint16_t num_tx = 0; @@ -274,7 +266,8 @@ eth_pcap_tx_dumper(void *queue, if (dumper_q->dumper == NULL || nb_pkts == 0) return 0; - /* writes the nb_pkts packets to the previously opened pcap file dumper */ + /* 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); @@ -291,8 +284,7 @@ eth_pcap_tx_dumper(void *queue, tx_pcap_data); } else { RTE_LOG(ERR, PMD, - "Dropping PCAP packet. " - "Size (%d) > max jumbo size (%d).\n", + "Dropping PCAP packet. Size (%d) > max jumbo size (%d).\n", mbuf->pkt_len, ETHER_MAX_JUMBO_FRAME_LEN); @@ -301,9 +293,9 @@ eth_pcap_tx_dumper(void *queue, } } - rte_pktmbuf_free(mbuf); num_tx++; tx_bytes += mbuf->pkt_len; + rte_pktmbuf_free(mbuf); } /* @@ -312,9 +304,10 @@ eth_pcap_tx_dumper(void *queue, * we flush the pcap dumper within each burst. */ pcap_dump_flush(dumper_q->dumper); - dumper_q->tx_pkts += num_tx; - dumper_q->tx_bytes += tx_bytes; - dumper_q->err_pkts += nb_pkts - num_tx; + 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 num_tx; } @@ -322,11 +315,9 @@ eth_pcap_tx_dumper(void *queue, * 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) +eth_pcap_tx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts) { - unsigned i; + unsigned int i; int ret; struct rte_mbuf *mbuf; struct pcap_tx_queue *tx_queue = queue; @@ -341,18 +332,16 @@ eth_pcap_tx(void *queue, if (likely(mbuf->nb_segs == 1)) { ret = pcap_sendpacket(tx_queue->pcap, - rte_pktmbuf_mtod(mbuf, u_char *), - mbuf->pkt_len); + rte_pktmbuf_mtod(mbuf, u_char *), + mbuf->pkt_len); } else { if (mbuf->pkt_len <= ETHER_MAX_JUMBO_FRAME_LEN) { eth_pcap_gather_data(tx_pcap_data, mbuf); ret = pcap_sendpacket(tx_queue->pcap, - tx_pcap_data, - mbuf->pkt_len); + tx_pcap_data, mbuf->pkt_len); } else { RTE_LOG(ERR, PMD, - "Dropping PCAP packet. " - "Size (%d) > max jumbo size (%d).\n", + "Dropping PCAP packet. Size (%d) > max jumbo size (%d).\n", mbuf->pkt_len, ETHER_MAX_JUMBO_FRAME_LEN); @@ -368,16 +357,84 @@ eth_pcap_tx(void *queue, rte_pktmbuf_free(mbuf); } - tx_queue->tx_pkts += num_tx; - tx_queue->tx_bytes += tx_bytes; - tx_queue->err_pkts += nb_pkts - num_tx; + tx_queue->tx_stat.pkts += num_tx; + tx_queue->tx_stat.bytes += tx_bytes; + tx_queue->tx_stat.err_pkts += nb_pkts - num_tx; + return num_tx; } +/* + * 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; +} + +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 +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) { + RTE_LOG(ERR, PMD, "Couldn't create dead pcap\n"); + return -1; + } + + /* The dumper is created using the previous pcap_t reference */ + *dumper = pcap_dump_open(tx_pcap, pcap_filename); + if (*dumper == NULL) { + RTE_LOG(ERR, PMD, "Couldn't open %s for writing.\n", + pcap_filename); + return -1; + } + + 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) { + RTE_LOG(ERR, PMD, "Couldn't open %s: %s\n", pcap_filename, + errbuf); + return -1; + } + + return 0; +} + static int eth_dev_start(struct rte_eth_dev *dev) { - unsigned i; + unsigned int i; struct pmd_internals *internals = dev->data->dev_private; struct pcap_tx_queue *tx; struct pcap_rx_queue *rx; @@ -396,22 +453,22 @@ eth_dev_start(struct rte_eth_dev *dev) } /* If not open already, open tx pcaps/dumpers */ - for (i = 0; i < internals->nb_tx_queues; i++) { + for (i = 0; i < dev->data->nb_tx_queues; i++) { tx = &internals->tx_queue[i]; - if (!tx->dumper && strcmp(tx->type, ETH_PCAP_TX_PCAP_ARG) == 0) { + 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) { + } 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++) { + for (i = 0; i < dev->data->nb_rx_queues; i++) { rx = &internals->rx_queue[i]; if (rx->pcap != NULL) @@ -420,17 +477,15 @@ eth_dev_start(struct rte_eth_dev *dev) 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) { + } 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 = ETH_LINK_UP; - dev->data->dev_link.link_status = 1; return 0; } @@ -442,7 +497,7 @@ status_up: static void eth_dev_stop(struct rte_eth_dev *dev) { - unsigned i; + unsigned int i; struct pmd_internals *internals = dev->data->dev_private; struct pcap_tx_queue *tx; struct pcap_rx_queue *rx; @@ -457,7 +512,7 @@ eth_dev_stop(struct rte_eth_dev *dev) goto status_down; } - for (i = 0; i < internals->nb_tx_queues; i++) { + for (i = 0; i < dev->data->nb_tx_queues; i++) { tx = &internals->tx_queue[i]; if (tx->dumper != NULL) { @@ -471,7 +526,7 @@ eth_dev_stop(struct rte_eth_dev *dev) } } - for (i = 0; i < internals->nb_rx_queues; i++) { + for (i = 0; i < dev->data->nb_rx_queues; i++) { rx = &internals->rx_queue[i]; if (rx->pcap != NULL) { @@ -481,7 +536,7 @@ eth_dev_stop(struct rte_eth_dev *dev) } status_down: - dev->data->dev_link.link_status = 0; + dev->data->dev_link.link_status = ETH_LINK_DOWN; } static int @@ -495,64 +550,64 @@ 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->max_rx_queues = dev->data->nb_rx_queues; + dev_info->max_tx_queues = dev->data->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) +eth_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats) { - unsigned i; + 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 < internal->nb_rx_queues; - i++) { - igb_stats->q_ipackets[i] = internal->rx_queue[i].rx_pkts; - igb_stats->q_ibytes[i] = internal->rx_queue[i].rx_bytes; - rx_packets_total += igb_stats->q_ipackets[i]; - rx_bytes_total += igb_stats->q_ibytes[i]; + 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 < internal->nb_tx_queues; - i++) { - igb_stats->q_opackets[i] = internal->tx_queue[i].tx_pkts; - igb_stats->q_obytes[i] = internal->tx_queue[i].tx_bytes; - igb_stats->q_errors[i] = internal->tx_queue[i].err_pkts; - tx_packets_total += igb_stats->q_opackets[i]; - tx_bytes_total += igb_stats->q_obytes[i]; - tx_packets_err_total += igb_stats->q_errors[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; + stats->q_errors[i] = internal->tx_queue[i].tx_stat.err_pkts; + tx_packets_total += stats->q_opackets[i]; + tx_bytes_total += stats->q_obytes[i]; + tx_packets_err_total += stats->q_errors[i]; } - igb_stats->ipackets = rx_packets_total; - igb_stats->ibytes = rx_bytes_total; - igb_stats->opackets = tx_packets_total; - igb_stats->obytes = tx_bytes_total; - igb_stats->oerrors = tx_packets_err_total; + 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; } static void eth_stats_reset(struct rte_eth_dev *dev) { - unsigned i; + unsigned int 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; - internal->rx_queue[i].rx_bytes = 0; + + 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 < internal->nb_tx_queues; i++) { - internal->tx_queue[i].tx_pkts = 0; - internal->tx_queue[i].tx_bytes = 0; - internal->tx_queue[i].err_pkts = 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; } } @@ -583,9 +638,11 @@ eth_rx_queue_setup(struct rte_eth_dev *dev, { 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; } @@ -596,15 +653,16 @@ eth_tx_queue_setup(struct rte_eth_dev *dev, 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_stop = eth_dev_stop, .dev_close = eth_dev_close, .dev_configure = eth_dev_configure, .dev_infos_get = eth_dev_info, @@ -617,13 +675,6 @@ static const struct eth_dev_ops ops = { .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. @@ -631,33 +682,23 @@ static struct eth_driver rte_pcap_pmd = { static int open_rx_pcap(const char *key, const char *value, void *extra_args) { - unsigned i; + unsigned int i; const char *pcap_filename = value; - struct rx_pcaps *pcaps = extra_args; + struct pmd_devargs *rx = extra_args; pcap_t *pcap = NULL; - for (i = 0; i < pcaps->num_of_rx; i++) { + for (i = 0; i < rx->num_of_queue; 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; + rx->queue[i].pcap = pcap; + rx->queue[i].name = pcap_filename; + rx->queue[i].type = 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. @@ -665,63 +706,23 @@ open_single_rx_pcap(const char *pcap_filename, pcap_t **pcap) static int open_tx_pcap(const char *key, const char *value, void *extra_args) { - unsigned i; + unsigned int i; const char *pcap_filename = value; - struct tx_pcaps *dumpers = extra_args; + struct pmd_devargs *dumpers = extra_args; pcap_dumper_t *dumper; - for (i = 0; i < dumpers->num_of_tx; i++) { + for (i = 0; i < dumpers->num_of_queue; 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; + dumpers->queue[i].dumper = dumper; + dumpers->queue[i].name = pcap_filename; + dumpers->queue[i].type = 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 */ @@ -729,15 +730,15 @@ 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; + struct pmd_devargs *tx = 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; + tx->queue[0].pcap = pcap; + tx->queue[0].name = iface; + tx->queue[0].type = key; return 0; } @@ -748,17 +749,17 @@ open_rx_tx_iface(const char *key, const char *value, void *extra_args) static inline int open_rx_iface(const char *key, const char *value, void *extra_args) { - unsigned i; + unsigned int i; const char *iface = value; - struct rx_pcaps *pcaps = extra_args; + struct pmd_devargs *rx = extra_args; pcap_t *pcap = NULL; - for (i = 0; i < pcaps->num_of_rx; i++) { + for (i = 0; i < rx->num_of_queue; i++) { if (open_single_iface(iface, &pcap) < 0) return -1; - pcaps->pcaps[i] = pcap; - pcaps->names[i] = iface; - pcaps->types[i] = key; + rx->queue[i].pcap = pcap; + rx->queue[i].name = iface; + rx->queue[i].type = key; } return 0; @@ -770,98 +771,59 @@ open_rx_iface(const char *key, const char *value, void *extra_args) static int open_tx_iface(const char *key, const char *value, void *extra_args) { - unsigned i; + unsigned int i; const char *iface = value; - struct tx_pcaps *pcaps = extra_args; + struct pmd_devargs *tx = extra_args; pcap_t *pcap; - for (i = 0; i < pcaps->num_of_tx; i++) { + for (i = 0; i < tx->num_of_queue; i++) { if (open_single_iface(iface, &pcap) < 0) return -1; - pcaps->pcaps[i] = pcap; - pcaps->names[i] = iface; - pcaps->types[i] = key; + tx->queue[i].pcap = pcap; + tx->queue[i].name = iface; + tx->queue[i].type = 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 struct rte_vdev_driver pmd_pcap_drv; static int -rte_pmd_init_internals(const char *name, const unsigned nb_rx_queues, - const unsigned nb_tx_queues, - const unsigned numa_node, +pmd_init_internals(const char *name, const unsigned int nb_rx_queues, + const unsigned int nb_tx_queues, struct pmd_internals **internals, - struct rte_eth_dev **eth_dev, - struct rte_kvargs *kvlist) + struct rte_eth_dev **eth_dev) { 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; - } + unsigned int numa_node = rte_socket_id(); - RTE_LOG(INFO, PMD, - "Creating pcap-backed ethdev on numa socket %u\n", numa_node); + 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 + /* now do all data allocation - for eth_dev structure * 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); + *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); + *eth_dev = rte_eth_dev_allocate(name); 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 eth_dev * - point eth_dev_data to internals * - 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); @@ -869,41 +831,37 @@ rte_pmd_init_internals(const char *name, const unsigned 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)); + /* + * NOTE: we'll replace the data element, of originally allocated + * eth_dev so the rings are local per-process + */ (*eth_dev)->data = data; (*eth_dev)->dev_ops = &ops; - (*eth_dev)->pci_dev = pci_dev; - (*eth_dev)->driver = &rte_pcap_pmd; - (*eth_dev)->data->dev_flags = RTE_ETH_DEV_DETACHABLE; (*eth_dev)->driver = NULL; - (*eth_dev)->data->kdrv = RTE_KDRV_NONE; - (*eth_dev)->data->drv_name = drivername; - (*eth_dev)->data->numa_node = numa_node; + data->dev_flags = RTE_ETH_DEV_DETACHABLE; + data->kdrv = RTE_KDRV_NONE; + data->drv_name = pmd_pcap_drv.driver.name; + data->numa_node = numa_node; 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) +eth_from_pcaps_common(const char *name, struct pmd_devargs *rx_queues, + const unsigned int nb_rx_queues, struct pmd_devargs *tx_queues, + const unsigned int nb_tx_queues, struct rte_kvargs *kvlist, + struct pmd_internals **internals, struct rte_eth_dev **eth_dev) { - struct pmd_internals *internals = NULL; - struct rte_eth_dev *eth_dev = NULL; - unsigned i; + struct rte_kvargs_pair *pair = NULL; + unsigned int k_idx; + unsigned int i; /* do some parameter checking */ if (rx_queues == NULL && nb_rx_queues > 0) @@ -911,104 +869,84 @@ rte_eth_from_pcaps_n_dumpers(const char *name, 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) + if (pmd_init_internals(name, nb_rx_queues, nb_tx_queues, internals, + eth_dev) < 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]); + struct pcap_rx_queue *rx = &(*internals)->rx_queue[i]; + struct devargs_queue *queue = &rx_queues->queue[i]; + + rx->pcap = queue->pcap; + snprintf(rx->name, sizeof(rx->name), "%s", queue->name); + snprintf(rx->type, sizeof(rx->type), "%s", queue->type); } + 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]); + struct pcap_tx_queue *tx = &(*internals)->tx_queue[i]; + struct devargs_queue *queue = &tx_queues->queue[i]; + + tx->dumper = queue->dumper; + tx->pcap = queue->pcap; + snprintf(tx->name, sizeof(tx->name), "%s", queue->name); + snprintf(tx->type, sizeof(tx->type), "%s", queue->type); } - /* using multiple pcaps/interfaces */ - internals->single_iface = 0; + 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; + } - eth_dev->rx_pkt_burst = eth_pcap_rx; - eth_dev->tx_pkt_burst = eth_pcap_tx_dumper; + if (pair == NULL) + (*internals)->if_index = 0; + else + (*internals)->if_index = if_nametoindex(pair->value); 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) +eth_from_pcaps(const char *name, struct pmd_devargs *rx_queues, + const unsigned int nb_rx_queues, struct pmd_devargs *tx_queues, + const unsigned int nb_tx_queues, struct rte_kvargs *kvlist, + int single_iface, unsigned int using_dumpers) { 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; + int ret; - if (rte_pmd_init_internals(name, nb_rx_queues, nb_tx_queues, numa_node, - &internals, ð_dev, kvlist) < 0) - return -1; + ret = eth_from_pcaps_common(name, rx_queues, nb_rx_queues, + tx_queues, nb_tx_queues, kvlist, &internals, ð_dev); - 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]); - } + if (ret < 0) + return ret; - /* store wether we are using a single interface for rx/tx or not */ + /* store weather 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; + + if (using_dumpers) + eth_dev->tx_pkt_burst = eth_pcap_tx_dumper; + else + eth_dev->tx_pkt_burst = eth_pcap_tx; return 0; } - static int -rte_pmd_pcap_devinit(const char *name, const char *params) +pmd_pcap_probe(const char *name, const char *params) { - unsigned numa_node, using_dumpers = 0; - int ret; + unsigned int is_rx_pcap = 0, is_tx_pcap = 0; struct rte_kvargs *kvlist; - struct rx_pcaps pcaps; - struct tx_pcaps dumpers; + struct pmd_devargs pcaps = {0}; + struct pmd_devargs dumpers = {0}; + int single_iface = 0; + int ret; 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(); @@ -1025,29 +963,39 @@ rte_pmd_pcap_devinit(const char *name, const char *params) 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; + + dumpers.queue[0] = pcaps.queue[0]; + + 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 or a * pcap file */ - if ((pcaps.num_of_rx = rte_kvargs_count(kvlist, ETH_PCAP_RX_PCAP_ARG))) { + pcaps.num_of_queue = rte_kvargs_count(kvlist, ETH_PCAP_RX_PCAP_ARG); + if (pcaps.num_of_queue) + is_rx_pcap = 1; + else + pcaps.num_of_queue = rte_kvargs_count(kvlist, + ETH_PCAP_RX_IFACE_ARG); + + if (pcaps.num_of_queue > RTE_PMD_PCAP_MAX_QUEUES) + pcaps.num_of_queue = RTE_PMD_PCAP_MAX_QUEUES; + + if (is_rx_pcap) 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); + else ret = rte_kvargs_process(kvlist, ETH_PCAP_RX_IFACE_ARG, &open_rx_iface, &pcaps); - } if (ret < 0) goto free_kvlist; @@ -1056,35 +1004,38 @@ rte_pmd_pcap_devinit(const char *name, const char *params) * 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))) { + dumpers.num_of_queue = rte_kvargs_count(kvlist, ETH_PCAP_TX_PCAP_ARG); + if (dumpers.num_of_queue) + is_tx_pcap = 1; + else + dumpers.num_of_queue = rte_kvargs_count(kvlist, + ETH_PCAP_TX_IFACE_ARG); + + if (dumpers.num_of_queue > RTE_PMD_PCAP_MAX_QUEUES) + dumpers.num_of_queue = RTE_PMD_PCAP_MAX_QUEUES; + + if (is_tx_pcap) 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); + else 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); +create_eth: + ret = eth_from_pcaps(name, &pcaps, pcaps.num_of_queue, &dumpers, + dumpers.num_of_queue, kvlist, single_iface, is_tx_pcap); free_kvlist: rte_kvargs_free(kvlist); + return ret; } static int -rte_pmd_pcap_devuninit(const char *name) +pmd_pcap_remove(const char *name) { struct rte_eth_dev *eth_dev = NULL; @@ -1101,18 +1052,22 @@ rte_pmd_pcap_devuninit(const char *name) 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, +static struct rte_vdev_driver pmd_pcap_drv = { + .probe = pmd_pcap_probe, + .remove = pmd_pcap_remove, }; -PMD_REGISTER_DRIVER(pmd_pcap_drv); +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_TX_IFACE_ARG "= " + ETH_PCAP_IFACE_ARG "=");