From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from localhost (unknown [106.216.182.233]) by dpdk.org (Postfix) with ESMTP id ECE3858EC for ; Mon, 3 Oct 2016 07:27:17 +0200 (CEST) Received: by localhost (Postfix, from userid 0) id 9EA89C0BAD; Mon, 3 Oct 2016 10:57:13 +0530 (IST) From: Rafat Jahan To: dev@dpdk.org Cc: Rafat Jahan Date: Mon, 3 Oct 2016 10:57:10 +0530 Message-Id: <1475472430-22296-1-git-send-email-rafat.jahan@tcs.com> X-Mailer: git-send-email 1.9.1 Subject: [dpdk-dev] [PATCH] l2fwd:mac learning 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: Mon, 03 Oct 2016 05:27:18 -0000 Added MAC learning to reduce load at l2 Signed-off-by: Rafat Jahan --- examples/l2fwd-mac/Makefile | 50 ++ examples/l2fwd-mac/main.c | 1325 +++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 1375 insertions(+) create mode 100644 examples/l2fwd-mac/Makefile create mode 100644 examples/l2fwd-mac/main.c diff --git a/examples/l2fwd-mac/Makefile b/examples/l2fwd-mac/Makefile new file mode 100644 index 0000000..6ab93f4 --- /dev/null +++ b/examples/l2fwd-mac/Makefile @@ -0,0 +1,50 @@ +# BSD LICENSE +# +# Copyright(c) 2010-2014 Intel Corporation. All rights reserved. +# 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. + +ifeq ($(RTE_SDK),) +$(error "Please define RTE_SDK environment variable") +endif + +# Default target, can be overriden by command line or environment +RTE_TARGET ?= x86_64-native-linuxapp-gcc + +include $(RTE_SDK)/mk/rte.vars.mk + +# binary name +APP = l2fwd-mac + +# all source are stored in SRCS-y +SRCS-y := main.c + +CFLAGS += -O3 +CFLAGS += $(WERROR_FLAGS) + +include $(RTE_SDK)/mk/rte.extapp.mk diff --git a/examples/l2fwd-mac/main.c b/examples/l2fwd-mac/main.c new file mode 100644 index 0000000..33d6a6e --- /dev/null +++ b/examples/l2fwd-mac/main.c @@ -0,0 +1,1325 @@ +/*-thread created and in which two seperate threads for updation and checking are created infinately + + final working code + + + * BSD LICENSE + * + * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. + * 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 +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define RTE_LOGTYPE_L2FWD RTE_LOGTYPE_USER1 + +#define NB_MBUF 8192 + +#define MAX_PKT_BURST 32 +#define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */ + +#define default_aging_time 30 +pthread_mutex_t mutex1 = PTHREAD_MUTEX_INITIALIZER; +/* + * Work-around of a compilation error with ICC on invocations of the + * rte_be_to_cpu_16() function. + */ +#ifdef __GCC__ +#define RTE_BE_TO_CPU_16(be_16_v) rte_be_to_cpu_16((be_16_v)) +#define RTE_CPU_TO_BE_16(cpu_16_v) rte_cpu_to_be_16((cpu_16_v)) +#else +#if RTE_BYTE_ORDER == RTE_BIG_ENDIAN +#define RTE_BE_TO_CPU_16(be_16_v) (be_16_v) +#define RTE_CPU_TO_BE_16(cpu_16_v) (cpu_16_v) +#else +#define RTE_BE_TO_CPU_16(be_16_v) \ + (uint16_t) ((((be_16_v) & 0xFF) << 8) | ((be_16_v) >> 8)) +#define RTE_CPU_TO_BE_16(cpu_16_v) \ + (uint16_t) ((((cpu_16_v) & 0xFF) << 8) | ((cpu_16_v) >> 8)) +#endif +#endif /* __GCC__ */ + +/* + * Configurable number of RX/TX ring descriptors + */ +#define RTE_TEST_RX_DESC_DEFAULT 128 +#define RTE_TEST_TX_DESC_DEFAULT 512 +static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT; +static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT; + +/* ethernet addresses of ports */ +static struct ether_addr l2fwd_ports_eth_addr[RTE_MAX_ETHPORTS]; + +/* mask of enabled ports */ +static uint32_t l2fwd_enabled_port_mask = 0; +static int64_t l2fwd_user_defined_dst_port = 0; +static int16_t l2fwd_mac_learning_enabled = 0; +uint64_t total_duplicate_packets_dropped = 0; + +/* list of enabled ports */ +static uint32_t l2fwd_dst_ports[RTE_MAX_ETHPORTS]; + +static unsigned int l2fwd_rx_queue_per_lcore = 1; + +void add_mac_entry(struct ether_hdr *eth,unsigned port); +static void l2fwd_mac_ports_update(struct ether_hdr *eth,unsigned rxport); +static void l2fwd_mac_display(void); +static void l2fwd_show_mac_entry(void); +void source_mac_table(struct ether_hdr *eth,unsigned port); +void add_src_mac_entry(struct ether_hdr *eth,unsigned port); +void update_aging(struct ether_hdr *eth); +void *thread1(void); +void *thread2(void); +void *threadInit(void); + + +struct node +{ + unsigned port; + struct ether_addr s_addr; /**< Source address. */ + struct ether_addr d_addr; /**< Destination address. */ + time_t starttime; + struct node *next; +}*head = NULL; + +struct mac_list +{ + unsigned port; + struct ether_addr s_addr; + time_t rx_time; + char *buff; + int aging_time; + struct mac_list *next; +}*start = NULL; + + +struct mbuf_table { + unsigned len; + struct rte_mbuf *m_table[MAX_PKT_BURST]; +}; + +void update_node(struct mac_list *ptr); +#define MAX_RX_QUEUE_PER_LCORE 16 +#define MAX_TX_QUEUE_PER_PORT 16 +struct lcore_queue_conf { + unsigned n_rx_port; + unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE]; + struct mbuf_table tx_mbufs[RTE_MAX_ETHPORTS]; + +} __rte_cache_aligned; +struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE]; + +static const struct rte_eth_conf port_conf = { + .rxmode = { + .split_hdr_size = 0, + .header_split = 0, /**< Header Split disabled */ + .hw_ip_checksum = 0, /**< IP checksum offload disabled */ + .hw_vlan_filter = 0, /**< VLAN filtering disabled */ + .jumbo_frame = 0, /**< Jumbo Frame Support disabled */ + .hw_strip_crc = 0, /**< CRC stripped by hardware */ + }, + .txmode = { + .mq_mode = ETH_MQ_TX_NONE, + }, +}; + +struct rte_mempool * l2fwd_pktmbuf_pool = NULL; + +/* Per-port statistics struct */ +struct l2fwd_port_statistics { + uint64_t tx; + uint64_t rx; + uint64_t dropped; +} __rte_cache_aligned; +struct l2fwd_port_statistics port_statistics[RTE_MAX_ETHPORTS]; + +/* A tsc-based timer responsible for triggering statistics printout */ +#define TIMER_MILLISECOND 2000000ULL /* around 1ms at 2 Ghz */ +#define MAX_TIMER_PERIOD 86400 /* 1 day max */ +static int64_t timer_period = 10 * TIMER_MILLISECOND * 1000; /* default period is 10 seconds */ + +static inline void +print_ether_addr(const char *what, struct ether_addr *eth_addr) +{ + char buf[ETHER_ADDR_FMT_SIZE]; + ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr); + printf("%s%s", what, buf); +} + +static void +ipv4_addr_to_dot(uint32_t be_ipv4_addr, char *buf) +{ + uint32_t ipv4_addr; + + ipv4_addr = rte_be_to_cpu_32(be_ipv4_addr); + sprintf(buf, "%d.%d.%d.%d", (ipv4_addr >> 24) & 0xFF, + (ipv4_addr >> 16) & 0xFF, (ipv4_addr >> 8) & 0xFF, + ipv4_addr & 0xFF); +} + +static void +ipv4_addr_dump(const char *what, uint32_t be_ipv4_addr) +{ + char buf[16]; + + ipv4_addr_to_dot(be_ipv4_addr, buf); + if (what) + printf("%s", what); + printf("%s", buf); +} + +void add_mac_entry(struct ether_hdr *eth,unsigned port) +{ + struct node *new = NULL; + new = (struct node*)malloc(sizeof(struct node)); + if(new == NULL) + { + printf("Memory not allocated for MAC database"); + } + + source_mac_table(eth,port); + + new->port = port; + new->starttime = time(NULL); + ether_addr_copy(ð->s_addr, &new->s_addr); + ether_addr_copy(ð->d_addr, &new->d_addr); + if(head == NULL) + { + head = new; + head->next = NULL; + + } + else + { + new->next = head; + head = new; + + } +} + +void source_mac_table(struct ether_hdr *eth,unsigned port) +{ + + struct mac_list *ptr = NULL; + ptr = start; + if(start == NULL) + { + printf("Adding entry to the table\n"); + add_src_mac_entry(eth,port); + } + else + { + while(ptr != NULL) + { + if (memcmp(ð->s_addr, &ptr->s_addr, ETHER_ADDR_LEN) == 0) + { + + ptr->rx_time=time(NULL); + ptr->aging_time=default_aging_time; + if(ptr->port != port ) + { + ptr->port = port; + break; + } + else + break; // received from same mac + } + ptr = ptr->next; + } + if(ptr == NULL) + { + /*If the mac entry is not found in the table, then add the entry + to the mac table */ + printf("Adding MAC entry to table\n"); + add_src_mac_entry(eth,port); + } + + } +} + +void add_src_mac_entry(struct ether_hdr *eth,unsigned port) +{ + struct mac_list *new = NULL; + new = (struct mac_list*)malloc(sizeof(struct mac_list)); + if(new == NULL) + { + printf("Memory not allocated for MAC database"); + } + new->port = port; + ether_addr_copy(ð->s_addr, &new->s_addr); + new->rx_time=time(NULL); + new->aging_time=default_aging_time; + if(start == NULL) + { + start = new; + start->next = NULL; + } + else + { + new->next=start; + start=new; + } + +} + +/* Print out statistics on packets dropped */ +static void +print_stats(void) +{ + uint64_t total_packets_dropped, total_packets_tx, total_packets_rx; + unsigned portid; + + total_packets_dropped = 0; + total_packets_tx = 0; + total_packets_rx = 0; + + const char clr[] = { 27, '[', '2', 'J', '\0' }; + const char topLeft[] = { 27, '[', '1', ';', '1', 'H','\0' }; + + /* Clear screen and move to top left */ + printf("%s%s", clr, topLeft); + + printf("\nPort statistics ===================================="); + + for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) { + /* skip disabled ports */ + if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) + continue; + printf("\nStatistics for port %u ------------------------------" + "\nPackets sent: %24"PRIu64 + "\nPackets received: %20"PRIu64 + "\nPackets dropped: %21"PRIu64, + portid, + port_statistics[portid].tx, + port_statistics[portid].rx, + port_statistics[portid].dropped); + + total_packets_dropped += port_statistics[portid].dropped; + total_packets_tx += port_statistics[portid].tx; + total_packets_rx += port_statistics[portid].rx; + } + printf("\nAggregate statistics ===============================" + "\nTotal packets sent: %18"PRIu64 + "\nTotal packets received: %14"PRIu64 + "\nTotal packets dropped: %15"PRIu64, + total_packets_tx, + total_packets_rx, + total_packets_dropped); + printf("\nTotal duplicate packets dropped: %5"PRIu64, + total_duplicate_packets_dropped); + printf("\n====================================================\n"); +} + + +/* Send the burst of packets on an output interface */ +static int +l2fwd_send_burst(struct lcore_queue_conf *qconf, unsigned n, uint8_t port) +{ + struct rte_mbuf **m_table; + unsigned ret; + unsigned queueid =0; + + m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table; + + ret = rte_eth_tx_burst(port, (uint16_t) queueid, m_table, (uint16_t) n); + port_statistics[port].tx += ret; + if (unlikely(ret < n)) { + port_statistics[port].dropped += (n - ret); + do { + rte_pktmbuf_free(m_table[ret]); + } while (++ret < n); + } + + return 0; +} + +/* Enqueue packets for TX and prepare them to be sent */ +static int +l2fwd_send_packet(struct rte_mbuf *m, uint8_t port) +{ + unsigned lcore_id, len; + struct lcore_queue_conf *qconf; + + lcore_id = rte_lcore_id(); + + qconf = &lcore_queue_conf[lcore_id]; + len = qconf->tx_mbufs[port].len; + qconf->tx_mbufs[port].m_table[len] = m; + len++; + + /* enough pkts to be sent */ + if (unlikely(len == MAX_PKT_BURST)) { + l2fwd_send_burst(qconf, MAX_PKT_BURST, port); + len = 0; + } + + qconf->tx_mbufs[port].len = len; + return 0; +} +static void l2fwd_mac_display(void) +{ + struct node *node = NULL; + printf("\n==============DEBUGGING MAC TABLE=================\n"); + printf(" SMAC DMAC PORT \n"); + node = head; + while(node != NULL) + { + print_ether_addr("", &node->s_addr); + print_ether_addr(" ",&node->d_addr); + printf(" %d\n",node->port); + node = node->next; + } + printf("========================================\n"); +} +static void l2fwd_show_mac_entry(void) +{ + struct mac_list *node = NULL; + printf("\n==============MAC TABLE=================\n"); + printf(" MAC PORT\taging time\n"); + node = start; + while(node != NULL) + { + print_ether_addr("", &node->s_addr); + printf(" %d\t",node->port); + printf("%d\n",node->aging_time); + + node = node->next; + } + printf("========================================\n"); +} +static void l2fwd_mac_ports_update(struct ether_hdr *eth,unsigned rxport) +{ + struct node *ptr = NULL; + struct mac_list *ptr1 = NULL; + + ptr = head; + while(ptr != NULL) + { + if (memcmp(ð->s_addr, &ptr->s_addr, ETHER_ADDR_LEN) == 0) + { + ptr->port = rxport; + } + ptr = ptr->next; + } + + ptr1 = start; + while(ptr1 != NULL) + { + if (memcmp(ð->s_addr, &ptr1->s_addr, ETHER_ADDR_LEN) == 0) + { + ptr1->port = rxport; + ptr1->rx_time=time(NULL); + ptr1->aging_time=default_aging_time; + } + ptr1 = ptr1->next; + } + +} +void update_aging(struct ether_hdr *eth) +{ + struct mac_list *ptr1=NULL; + ptr1 = start; + while(ptr1 != NULL) + { + if (memcmp(ð->s_addr, &ptr1->s_addr, ETHER_ADDR_LEN) == 0) + { + ptr1->rx_time=time(NULL); + ptr1->aging_time=default_aging_time; + } + ptr1 = ptr1->next; + } +} +static void +l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid) +{ + struct ether_hdr *eth; + void *tmp; + unsigned dst_port; + int currenttime,difference,timeout = 8; + //int err; + //pthread_t t1,t2; + dst_port = l2fwd_dst_ports[portid]; + printf("---------- Forwarding Path ----------\n"); + printf("Default forwarding dst port : %d\n",dst_port); + + eth = rte_pktmbuf_mtod(m, struct ether_hdr *); + + if(l2fwd_user_defined_dst_port > 0) + { + dst_port = l2fwd_user_defined_dst_port; + printf("User defined dst Port : %d\n",dst_port); + printf("----------------------------------------\n"); + printf("Forwarding path has been modified from default to user defined\n"); + } + else if(l2fwd_mac_learning_enabled) + { + //l2fwd_mac_display(); + //l2fwd_show_mac_entry(); + //pthread_mutex_lock( &mutex1 ); + struct node *ptr = NULL; + struct mac_list *temp = NULL; + ptr = head; + if(head == NULL) + { + printf("No MAC address exist in table , adding entry to the table\n"); + add_mac_entry(eth,portid); + } + else + { + /* condition to check and overwrite the 'port' if the same mac address + was already received from another 'port' earlier*/ + while(ptr != NULL) + { + if ((memcmp(ð->s_addr, &ptr->s_addr, ETHER_ADDR_LEN) == 0) && + (memcmp(ð->d_addr, &ptr->d_addr, ETHER_ADDR_LEN) == 0)) + { + // printf("----->same SMAC DMAC\n"); + if(portid != ptr->port) + { + printf("port id is different %d\n",portid); + currenttime = time(NULL); + difference = currenttime - (ptr->starttime); + if(difference > timeout) + { + printf("----->difference %d\n",difference); + ptr->port = portid; + ptr->starttime = time(NULL); + l2fwd_mac_ports_update(eth,portid); + // add_mac_entry(eth,portid); + break; + } else { + printf("Detected duplication,packet dropped \n"); + //duplicate packet + total_duplicate_packets_dropped++; + //need to check whether break is needed + // return; + } + } + + ptr->starttime = time(NULL); + update_aging(eth); + // printf("---->received from same mac diff %d\n",difference); + break; + } + ptr = ptr->next; + } + if(ptr == NULL) + { + /*If the mac entry is not found in the table, then add the entry + to the mac table */ + printf("Adding MAC entry to table\n"); + add_mac_entry(eth,portid); + //l2fwd_mac_ports_update(eth,portid); + } + } + + + /* lookup to get the dst port if the mac entry is already present in the table*/ + temp = start; + while(temp != NULL) + { + if (memcmp(ð->d_addr, &temp->s_addr, ETHER_ADDR_LEN) == 0) + { + dst_port = temp->port; + printf("\n"); + printf("dst port from table : %d\n",dst_port); + break; + } + temp = temp->next; + } + /*If the dst mac is not available,then forward the packet in dumping port*/ + if(temp == NULL) + { + dst_port = 9; + printf("Dumping port : %d\n",dst_port); + } + + } + else + { +//======================================================== + /* 02:00:00:00:00:xx */ + tmp = ð->d_addr.addr_bytes[0]; + *((uint64_t *)tmp) = 0xffffffffffff ; + //*((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40); + + /* src addr */ + ether_addr_copy(&l2fwd_ports_eth_addr[dst_port], ð->s_addr); + } + + printf("========================================\n"); + l2fwd_mac_display(); + l2fwd_show_mac_entry(); + //pthread_mutex_unlock( &mutex1 ); + l2fwd_send_packet(m, (uint8_t) dst_port); +} + +/* main processing loop */ +static void +l2fwd_main_loop(void) +{ + struct rte_mbuf *pkts_burst[MAX_PKT_BURST]; + struct rte_mbuf *m; + unsigned lcore_id; + uint64_t prev_tsc, diff_tsc, cur_tsc, timer_tsc; + unsigned i, j, portid, nb_rx; + struct lcore_queue_conf *qconf; + const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US; + struct ether_hdr *eth_hdr; + uint16_t eth_type; + struct ipv4_hdr *ip_h; + int l2_len; + struct arp_hdr *arp_h; + uint32_t sip_addr,tip_addr; + + prev_tsc = 0; + timer_tsc = 0; + + lcore_id = rte_lcore_id(); + qconf = &lcore_queue_conf[lcore_id]; + + if (qconf->n_rx_port == 0) { + RTE_LOG(INFO, L2FWD, "lcore %u has nothing to do\n", lcore_id); + return; + } + + RTE_LOG(INFO, L2FWD, "entering main loop on lcore %u\n", lcore_id); + + for (i = 0; i < qconf->n_rx_port; i++) { + + portid = qconf->rx_port_list[i]; + RTE_LOG(INFO, L2FWD, " -- lcoreid=%u portid=%u\n", lcore_id, + portid); + } + + while (1) { + + cur_tsc = rte_rdtsc(); + + /* + * TX burst queue drain + */ + diff_tsc = cur_tsc - prev_tsc; + if (unlikely(diff_tsc > drain_tsc)) { + + for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) { + if (qconf->tx_mbufs[portid].len == 0) + continue; + l2fwd_send_burst(&lcore_queue_conf[lcore_id], + qconf->tx_mbufs[portid].len, + (uint8_t) portid); + qconf->tx_mbufs[portid].len = 0; + } + + /* if timer is enabled */ + if (timer_period > 0) { + + /* advance the timer */ + timer_tsc += diff_tsc; + + /* if timer has reached its timeout */ + if (unlikely(timer_tsc >= (uint64_t) timer_period)) { + + /* do this only on master core */ + if (lcore_id == rte_get_master_lcore()) { + print_stats(); + /* reset the timer */ + timer_tsc = 0; + } + } + } + + prev_tsc = cur_tsc; + } + + /* + * Read packet from RX queues + */ + for (i = 0; i < qconf->n_rx_port; i++) { + + portid = qconf->rx_port_list[i]; + nb_rx = rte_eth_rx_burst((uint8_t) portid, 0, + pkts_burst, MAX_PKT_BURST); + + if(nb_rx == 0) + continue; + port_statistics[portid].rx += nb_rx; + + for (j = 0; j < nb_rx; j++) { + m = pkts_burst[j]; + rte_prefetch0(rte_pktmbuf_mtod(m, void *)); + + eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *); + eth_type = RTE_BE_TO_CPU_16(eth_hdr->ether_type); + l2_len = sizeof(struct ether_hdr); + + //if (eth_type != ETHER_TYPE_IPv4) { + // rte_pktmbuf_free(m); + // continue; + //} + + printf("========================================\n"); + printf("Packet received on port :%d\n",portid); + printf("------------ L2 Details------------\n"); + print_ether_addr(" Source MAC : ", ð_hdr->s_addr); + print_ether_addr("\n Destination MAC : ", ð_hdr->d_addr); + printf("\n Port : %d" + "\n Ethernet Type : 0x%04x" + "\n Length : %u " + "\n Nb_segs : %d", + portid, + eth_type, + (unsigned) m->pkt_len, + (int)m->nb_segs); + printf("\n"); + + if (eth_type == ETHER_TYPE_ARP) + { + arp_h = (struct arp_hdr *) ((char *)eth_hdr + l2_len); + sip_addr = arp_h->arp_data.arp_sip; + tip_addr = arp_h->arp_data.arp_tip; + } else + { + if (eth_type != ETHER_TYPE_IPv4) { + rte_pktmbuf_free(m); + continue; + } + ip_h = (struct ipv4_hdr *) ((char *)eth_hdr + l2_len); + sip_addr = ip_h->src_addr; + tip_addr = ip_h->dst_addr; + } + printf("------------ L3 Details------------\n"); + ipv4_addr_dump(" Source IP : ", sip_addr); + ipv4_addr_dump("\n Destination IP : ", tip_addr); + printf("\n"); + + l2fwd_simple_forward(m, portid); + } + } + } +} + +static int +l2fwd_launch_one_lcore(__attribute__((unused)) void *dummy) +{ + l2fwd_main_loop(); + return 0; +} + +/* display usage */ +static void +l2fwd_usage(const char *prgname) +{ + printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n" + " -p PORTMASK: hexadecimal bitmask of ports to configure\n" + " -q NQ: number of queue (=ports) per lcore (default is 1)\n" + " -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n" + " -d DST PORT: user input to select the destination port\n" + " -l MAC LEARNING: enable l2fwd mac learning 1-enable : 0 - disable(default) \n", + prgname); +} + +static int +l2fwd_parse_portmask(const char *portmask) +{ + char *end = NULL; + unsigned long pm; + + /* parse hexadecimal string */ + pm = strtoul(portmask, &end, 16); + if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0')) + return -1; + + if (pm == 0) + return -1; + + return pm; +} + +static unsigned int +l2fwd_parse_nqueue(const char *q_arg) +{ + char *end = NULL; + unsigned long n; + + /* parse hexadecimal string */ + n = strtoul(q_arg, &end, 10); + if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0')) + return 0; + if (n == 0) + return 0; + if (n >= MAX_RX_QUEUE_PER_LCORE) + return 0; + + return n; +} + +static int +l2fwd_parse_timer_period(const char *q_arg) +{ + char *end = NULL; + int n; + + /* parse number string */ + n = strtol(q_arg, &end, 10); + if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0')) + return -1; + if (n >= MAX_TIMER_PERIOD) + return -1; + + return n; +} + +static int +pktcap_parse_dst_port(const char *q_arg) +{ + char *end = NULL; + int n; + + /* parse number string */ + n = strtol(q_arg, &end, 10); + if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0')) + return -1; + if (n > RTE_MAX_ETHPORTS) + return -1; + + return n; +} + +static int +l2fwd_parse_mac_learning(const char *q_arg) +{ + char *end = NULL; + int n; + + /* parse number string */ + n = strtol(q_arg, &end, 0); + if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0')) + return -1; + if (n > 1) + return -1; + + return n; +} +/* Parse the argument given in the command line of the application */ +static int +l2fwd_parse_args(int argc, char **argv) +{ + int opt, ret; + char **argvopt; + int option_index; + char *prgname = argv[0]; + static struct option lgopts[] = { + {NULL, 0, 0, 0} + }; + + argvopt = argv; + + while ((opt = getopt_long(argc, argvopt, "p:q:T:d:l:", + lgopts, &option_index)) != EOF) { + + switch (opt) { + /* portmask */ + case 'p': + l2fwd_enabled_port_mask = l2fwd_parse_portmask(optarg); + if (l2fwd_enabled_port_mask == 0) { + printf("invalid portmask\n"); + l2fwd_usage(prgname); + return -1; + } + break; + + /* nqueue */ + case 'q': + l2fwd_rx_queue_per_lcore = l2fwd_parse_nqueue(optarg); + if (l2fwd_rx_queue_per_lcore == 0) { + printf("invalid queue number\n"); + l2fwd_usage(prgname); + return -1; + } + break; + + /* timer period */ + case 'T': + timer_period = l2fwd_parse_timer_period(optarg) * 1000 * TIMER_MILLISECOND; + if (timer_period < 0) { + printf("invalid timer period\n"); + l2fwd_usage(prgname); + return -1; + } + break; + + /* user defined dst port*/ + case 'd': + l2fwd_user_defined_dst_port = pktcap_parse_dst_port(optarg); + if (l2fwd_user_defined_dst_port < 0) { + printf("invalid port number\n"); + l2fwd_usage(prgname); + return -1; + } + break; + + /* l2 mac learning*/ + case 'l': + l2fwd_mac_learning_enabled = l2fwd_parse_mac_learning(optarg); + if (l2fwd_mac_learning_enabled < 0) { + printf("invalid option\n"); + l2fwd_usage(prgname); + return -1; + } + break; + /* long options */ + case 0: + l2fwd_usage(prgname); + return -1; + + default: + l2fwd_usage(prgname); + return -1; + } + } + + if (optind >= 0) + argv[optind-1] = prgname; + + ret = optind-1; + optind = 0; /* reset getopt lib */ + return ret; +} + +/* Check the link status of all ports in up to 9s, and print them finally */ +static void +check_all_ports_link_status(uint8_t port_num, uint32_t port_mask) +{ +#define CHECK_INTERVAL 100 /* 100ms */ +#define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */ + uint8_t portid, count, all_ports_up, print_flag = 0; + struct rte_eth_link link; + + printf("\nChecking link status"); + fflush(stdout); + for (count = 0; count <= MAX_CHECK_TIME; count++) { + all_ports_up = 1; + for (portid = 0; portid < port_num; portid++) { + if ((port_mask & (1 << portid)) == 0) + continue; + memset(&link, 0, sizeof(link)); + rte_eth_link_get_nowait(portid, &link); + /* print link status if flag set */ + if (print_flag == 1) { + if (link.link_status) + printf("Port %d Link Up - speed %u " + "Mbps - %s\n", (uint8_t)portid, + (unsigned)link.link_speed, + (link.link_duplex == ETH_LINK_FULL_DUPLEX) ? + ("full-duplex") : ("half-duplex\n")); + else + printf("Port %d Link Down\n", + (uint8_t)portid); + continue; + } + /* clear all_ports_up flag if any link down */ + if (link.link_status == 0) { + all_ports_up = 0; + break; + } + } + /* after finally printing all link status, get out */ + if (print_flag == 1) + break; + + if (all_ports_up == 0) { + printf("."); + fflush(stdout); + rte_delay_ms(CHECK_INTERVAL); + } + + /* set the print_flag if all ports up or timeout */ + if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) { + print_flag = 1; + printf("done\n"); + } + } +} + +void *thread2(void) +{ + if(start!=NULL) + { + + pthread_mutex_lock( &mutex1 ); + struct mac_list *temp=start; + while(temp!=NULL) + { + if(temp->aging_time>0) + temp->aging_time=default_aging_time-(time(NULL)-temp->rx_time); + //strcpy(temp->buff,"check"); + temp=temp->next; + } + pthread_mutex_unlock( &mutex1 ); + } + pthread_exit(NULL); + return NULL; +} + +void update_node(struct mac_list *l_temp) +{ + struct node *temp,*temp2,*prev; + if(head!=NULL) + { + while(head!=NULL) + { + if(memcmp(&l_temp->s_addr, &head->s_addr, ETHER_ADDR_LEN) == 0) + { + temp=head; + head=head->next; + free(temp); + } + else + break; + } + // if(head!=NULL) + temp=head->next; + prev=head; + while(temp!=NULL && head!=NULL) + { + if(memcmp(&l_temp->s_addr, &temp->s_addr, ETHER_ADDR_LEN) == 0) + { + prev->next=temp->next; + temp2=temp; + temp=temp->next; + free(temp2); + } + else + { + temp=temp->next; + prev=prev->next; + } + } + } + + +} + + +void *thread1(void) +{ + struct mac_list *temp,*temp2,*prev; + + if(start!=NULL) + { + + pthread_mutex_lock( &mutex1 ); + while(start!=NULL) + { + if( start->aging_time==0) + { + temp = start; + update_node(temp); + start=start->next; + free(temp); + + } + else + break; + } + // if(start!=NULL) + temp = start->next; + prev=start; + while(temp!= NULL && start!=NULL) + { + + if(temp->aging_time==0) + { + update_node(temp); + prev->next=temp->next; + temp2=temp; + temp=temp->next; + if(temp2!=NULL) + free(temp2); + } + else + { + temp = temp->next; + prev=prev->next; + } + } + pthread_mutex_unlock( &mutex1 ); + } + pthread_exit(NULL); + return NULL; +} +void *threadInit(void) +{ + pthread_t t1,t2; + int err; + while(1) + { + err=pthread_create(&t1, NULL,(void *)thread1,NULL);//for checking the mac table + pthread_join(t1,NULL); + + + err=pthread_create(&t2,NULL,(void *)thread2,NULL);//for updating the mac table + pthread_join(t2,NULL); + + if(err!=0) + { + printf("thread not created\n"); + exit(0); + } + } + return NULL; +} + +int +main(int argc, char **argv) +{ + struct lcore_queue_conf *qconf; + struct rte_eth_dev_info dev_info; + int ret,err; + uint8_t nb_ports; + uint8_t nb_ports_available; + uint8_t portid, last_port; + unsigned lcore_id, rx_lcore_id; + unsigned nb_ports_in_mask = 0; + pthread_t t3; + /* init EAL */ + ret = rte_eal_init(argc, argv); + if (ret < 0) + rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n"); + argc -= ret; + argv += ret; + + /* parse application arguments (after the EAL ones) */ + ret = l2fwd_parse_args(argc, argv); + if (ret < 0) + rte_exit(EXIT_FAILURE, "Invalid L2FWD arguments\n"); + + /* create the mbuf pool */ + l2fwd_pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF, 32, + 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id()); + if (l2fwd_pktmbuf_pool == NULL) + rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n"); + + nb_ports = rte_eth_dev_count(); + if (nb_ports == 0) + rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n"); + + if (nb_ports > RTE_MAX_ETHPORTS) + nb_ports = RTE_MAX_ETHPORTS; + + /* reset l2fwd_dst_ports */ + for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) + l2fwd_dst_ports[portid] = 0; + last_port = 0; + + printf("Entered port : %" PRId64 "\n",l2fwd_user_defined_dst_port); + + /* + * Each logical core is assigned a dedicated TX queue on each port. + */ + if(l2fwd_user_defined_dst_port == 0) + { + for (portid = 0; portid < nb_ports; portid++) { + /* skip ports that are not enabled */ + if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) + continue; + + if (nb_ports_in_mask % 2) { + l2fwd_dst_ports[portid] = last_port; + l2fwd_dst_ports[last_port] = portid; + } + else + last_port = portid; + + nb_ports_in_mask++; + + rte_eth_dev_info_get(portid, &dev_info); + } + if (nb_ports_in_mask % 2) { + printf("Notice: odd number of ports in portmask.\n"); + l2fwd_dst_ports[last_port] = last_port; + } + + } + rx_lcore_id = 0; + qconf = NULL; + + /* Initialize the port/queue configuration of each logical core */ + for (portid = 0; portid < nb_ports; portid++) { + /* skip ports that are not enabled */ + if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) + continue; + + /* get the lcore_id for this port */ + while (rte_lcore_is_enabled(rx_lcore_id) == 0 || + lcore_queue_conf[rx_lcore_id].n_rx_port == + l2fwd_rx_queue_per_lcore) { + rx_lcore_id++; + if (rx_lcore_id >= RTE_MAX_LCORE) + rte_exit(EXIT_FAILURE, "Not enough cores\n"); + } + + if (qconf != &lcore_queue_conf[rx_lcore_id]) + /* Assigned a new logical core in the loop above. */ + qconf = &lcore_queue_conf[rx_lcore_id]; + + qconf->rx_port_list[qconf->n_rx_port] = portid; + qconf->n_rx_port++; + printf("Lcore %u: RX port %u\n", rx_lcore_id, (unsigned) portid); + } + + nb_ports_available = nb_ports; + + /* Initialise each port */ + for (portid = 0; portid < nb_ports; portid++) { + /* skip ports that are not enabled */ + if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) { + printf("Skipping disabled port %u\n", (unsigned) portid); + nb_ports_available--; + continue; + } + /* init port */ + printf("Initializing port %u... ", (unsigned) portid); + fflush(stdout); + ret = rte_eth_dev_configure(portid, 1, 1, &port_conf); + if (ret < 0) + rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%u\n", + ret, (unsigned) portid); + + rte_eth_macaddr_get(portid,&l2fwd_ports_eth_addr[portid]); + + /* init one RX queue */ + fflush(stdout); + ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd, + rte_eth_dev_socket_id(portid), + NULL, + l2fwd_pktmbuf_pool); + if (ret < 0) + rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup:err=%d, port=%u\n", + ret, (unsigned) portid); + + /* init one TX queue on each port */ + fflush(stdout); + ret = rte_eth_tx_queue_setup(portid, 0, nb_txd, + rte_eth_dev_socket_id(portid), + NULL); + if (ret < 0) + rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup:err=%d, port=%u\n", + ret, (unsigned) portid); + /****************************************/ + err=pthread_create(&t3,NULL,(void *)threadInit,NULL); + //thread for checking and updating the mac table + if(err!=0) + { + printf("thread not created\n"); + exit(0); + } + /****************************************/ + /* Start device */ + ret = rte_eth_dev_start(portid); + if (ret < 0) + rte_exit(EXIT_FAILURE, "rte_eth_dev_start:err=%d, port=%u\n", + ret, (unsigned) portid); + + printf("done: \n"); + + rte_eth_promiscuous_enable(portid); + + printf("Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n", + (unsigned) portid, + l2fwd_ports_eth_addr[portid].addr_bytes[0], + l2fwd_ports_eth_addr[portid].addr_bytes[1], + l2fwd_ports_eth_addr[portid].addr_bytes[2], + l2fwd_ports_eth_addr[portid].addr_bytes[3], + l2fwd_ports_eth_addr[portid].addr_bytes[4], + l2fwd_ports_eth_addr[portid].addr_bytes[5]); + + /* initialize port stats */ + memset(&port_statistics, 0, sizeof(port_statistics)); + } + + if (!nb_ports_available) { + rte_exit(EXIT_FAILURE, + "All available ports are disabled. Please set portmask.\n"); + } + + check_all_ports_link_status(nb_ports, l2fwd_enabled_port_mask); + + /* launch per-lcore init on every lcore */ + rte_eal_mp_remote_launch(l2fwd_launch_one_lcore, NULL, CALL_MASTER); + RTE_LCORE_FOREACH_SLAVE(lcore_id) { + if (rte_eal_wait_lcore(lcore_id) < 0) + return -1; + } + //pthread_join(t1,NULL); + //pthread_join(t2,NULL); + + return 0; +} -- 1.9.1