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daq.patch
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daq.patch
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diff -r -N -u daq-2.1.0/configure.ac daq-a/configure.ac
--- daq-2.1.0/configure.ac 2016-06-22 03:19:07.000000000 +0800
+++ daq-a/configure.ac 2016-08-03 16:58:58.000000000 +0800
@@ -102,6 +102,22 @@
CPPFLAGS="${CPPFLAGS} -I${with_netmap_includes}"
fi
+AC_ARG_WITH(dpdk_includes,
+ [ --with-dpdk-includes=DIR dpdk include directory],
+ [with_dpdk_includes="$withval"], [with_dpdk_includes="no"])
+
+if test "x$with_dpdk_includes" != "xno"; then
+ CPPFLAGS="${CPPFLAGS} -I${with_dpdk_includes}"
+fi
+
+AC_ARG_WITH(dpdk_libraries,
+ [ --with-dpdk-libraries=DIR dpdk library directory],
+ [with_dpdk_libraries="$withval"], [with_dpdk_libraries="no"])
+
+if test "x$with_dpdk_libraries" != "xno"; then
+ DPDK_LDFLAGS="-L${with_dpdk_libraries}"
+fi
+
DEFAULT_ENABLE=yes
# Modules configuration
@@ -128,6 +144,20 @@
fi
AM_CONDITIONAL([BUILD_AFPACKET_MODULE], [test "$enable_afpacket_module" = yes])
+# DPDK Module
+AC_ARG_ENABLE(dpdk-module,
+ AC_HELP_STRING([--disable-dpdk-module],[don't build the bundled dpdk module]),
+ [enable_dpdk_module="$enableval"], [enable_dpdk_module="$DEFAULT_ENABLE"])
+if test "$enable_dpdk_module" = yes; then
+ AC_CHECK_HEADER([rte_config.h], [], [enable_dpdk_module=no])
+ if test "$enable_dpdk_module" = yes; then
+ STATIC_LIBS="${STATIC_LIBS} -lsfbpf ${DPDK_LDFLAGS} -ldpdk -lpthread"
+ CFLAGS="${CFLAGS} -std=gnu99 -Wno-pedantic"
+ fi
+fi
+AM_CONDITIONAL([BUILD_DPDK_MODULE], [test "$enable_dpdk_module" = yes])
+
+
# Dump Module
AC_ARG_ENABLE(dump-module,
AS_HELP_STRING([--disable-dump-module],[don't build the bundled Dump module]),
@@ -257,6 +287,7 @@
AM_CONDITIONAL([BUILD_MODULES], [test "$enable_afpacket_module" = yes -o \
"$enable_dump_module" = yes -o \
+ "$enable_dpdk_module" = yes -o \
"$enable_ipfw_module" = yes -o \
"$enable_ipq_module" = yes -o \
"$enable_nfq_module" = yes -o \
@@ -302,6 +333,7 @@
echo
echo "Build AFPacket DAQ module.. : $enable_afpacket_module"
+echo "Build DPDK DAQ module...... : $enable_dpdk_module"
echo "Build Dump DAQ module...... : $enable_dump_module"
echo "Build IPFW DAQ module...... : $enable_ipfw_module"
echo "Build IPQ DAQ module....... : $enable_ipq_module"
diff -r -N -u daq-2.1.0/os-daq-modules/daq_dpdk.c daq-a/os-daq-modules/daq_dpdk.c
--- daq-2.1.0/os-daq-modules/daq_dpdk.c 1970-01-01 08:00:00.000000000 +0800
+++ daq-a/os-daq-modules/daq_dpdk.c 2016-09-13 20:35:35.000000000 +0800
@@ -0,0 +1,951 @@
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <errno.h>
+#include <fcntl.h>
+#include <net/if.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/poll.h>
+#include <pthread.h>
+#include <daq_api.h>
+#include <sfbpf.h>
+#include <sfbpf_dlt.h>
+/*
+ * DPDK HEADER
+ */
+
+#include <rte_config.h>
+#include <rte_eal.h>
+#include <rte_ethdev.h>
+#include <rte_errno.h>
+
+#define RX_RING_SIZE 1024
+#define TX_RING_SIZE 1024
+
+#define QUEUE_SIZE 128
+#define PORT_SIZE 128
+#define CORE_SIZE 1024
+#define NUM_MBUFS 8191
+#define MBUF_CACHE_SIZE 250
+#define BURST_SIZE 32
+
+#define MAX_ARGS 64
+
+#define DAQ_DPDK_VERSION 16.04
+
+/* Hi! I'm completely arbitrary! */
+//#define dpdk_MAX_INTERFACES 32
+
+/* FreeBSD 10.0 uses an old version of dpdk, so work around it accordingly. */
+/*#if dpdk_API < 10
+#define nm_ring_next(r, i) dpdk_RING_NEXT(r, i)
+#define nm_ring_empty(r) ((r)->avail == 0)
+#endif
+*/
+//0 for close debug mode, 1 for open debug mode.
+#define DEBUG 0
+#if DEBUG
+#define DBG(var, ...) printf(var, __VA_ARGS__)
+#else
+#define DBG(var, ...) //printf(var, __VA_ARGS__)
+#endif
+
+typedef struct _dpdk_instance
+{
+ struct _dpdk_instance *next;
+ struct _dpdk_instance *peer;
+ int fd;
+#define NMINST_FWD_BLOCKED 0x1
+#define NMINST_TX_BLOCKED 0x2
+ int index;
+ //NIC config
+ uint16_t queue_size;
+ uint16_t port;//the port id of nic.
+ int start;
+ int end;
+ int tx_num;
+ //
+ struct rte_mbuf *bufs[BURST_SIZE];
+ struct rte_mempool * mp;
+ volatile int break_loop;
+ DAQ_Stats_t stats;
+ struct sfbpf_program fcode;
+ DAQ_State state;
+ char *filter;
+ char errbuf[256];
+} DPDKInstance;
+
+typedef struct _dpdk_context
+{
+ char *device;
+ char *filter;
+ int snaplen;
+ int timeout;
+ int debug;
+ int threadNum;//the num of threads use this content. If num ==0, then free the dpdkc.
+ pthread_t *portMap;//portmap[port] = threadId;
+ DPDKInstance *instances;
+ DPDKInstance **insMap;
+ struct rte_mempool * mp;
+ uint32_t intf_count;//the num of interface.
+ struct sfbpf_program fcode;
+ volatile int break_loop;
+ DAQ_Stats_t stats;
+ DAQ_State state;
+ int promisc_flag;
+ char errbuf[256];
+} DPDK_Context_t;
+DPDK_Context_t * local_ctx = NULL;
+static int isInit = -1;
+pthread_mutex_t mutex;
+//todo
+
+#define FIND_IDX() do { \
+ pthread_t tid = pthread_self(); \
+ idx = -1; \
+ for (uint8_t i =0;i<dpdkc->intf_count;i++ ){ \
+ if(tid == dpdkc->portMap[i]){ \
+ idx = i; \
+ break; \
+ } \
+ } \
+ DBG("%s(),%d:idx %d tid %d.\n",__FUNCTION__,__LINE__,idx,tid); \
+} while(0)
+
+static int parse_args(char *inputstring, char **argv)
+{
+ char **ap;
+
+ for (ap = argv; (*ap = strsep(&inputstring, " \t")) != NULL;)
+ {
+ if (**ap != '\0')
+ if (++ap >= &argv[MAX_ARGS])
+ break;
+ }
+ return ap - argv;
+}
+
+static void destroy_instance(DPDKInstance *instance)
+{
+ if (instance)
+ {
+ for (int i =instance->start;i<instance->end;i++)
+ rte_pktmbuf_free(instance->bufs[i]);
+ //here may need change.
+ rte_eth_dev_stop(instance->port);
+ free(instance);
+ }
+}
+
+static int dpdk_close(DPDK_Context_t *dpdkc)
+{
+ DPDKInstance *instance;
+
+ if (!dpdkc)
+ return -1;
+ int idx = -1;
+ FIND_IDX();
+ if (idx == -1){
+ return 0;
+ }
+ dpdkc->portMap[idx] = -1;
+ pthread_mutex_lock(&mutex);
+ dpdkc->threadNum--;
+ if(dpdkc->threadNum >0){
+ pthread_mutex_unlock(&mutex);
+ return 0;
+ }
+ /* Free all of the device instances. */
+ while ((instance = dpdkc->instances) != NULL)
+ {
+ dpdkc->instances = instance->next;
+ if (dpdkc->debug)
+ {
+ printf("dpdk instance %d (%d) tx %d pkts on TX while forwarding.\n",
+ instance->port, instance->index, instance->tx_num);
+ }
+ sfbpf_freecode(&instance->fcode);
+ destroy_instance(instance);
+ }
+
+ sfbpf_freecode(&dpdkc->fcode);
+
+ dpdkc->state = DAQ_STATE_STOPPED;
+ pthread_mutex_unlock(&mutex);
+ return 0;
+}
+//here to init a port.
+static DPDKInstance *create_instance(const char *device, DPDKInstance *parent, char *errbuf, size_t errlen)
+{
+ DPDKInstance *instance;
+ int port;
+ static int index = 0;
+ instance = calloc(1, sizeof(DPDKInstance));
+ if (!instance)
+ {
+ snprintf(errbuf, errlen, "%s: Could not allocate a new instance structure.", __FUNCTION__);
+ goto err;
+ }
+
+ /* Initialize the instance, including an arbitrary and unique device index. */
+ instance->index = index;
+ index++;
+
+
+ if(strncmp(device, "dpdk", 4) != 0 || sscanf(device,"dpdk%d",&port)!=1){
+ snprintf(errbuf, errlen, "%s: Could not open /dev/dpdk: %s (%d)",
+ __FUNCTION__, strerror(errno), errno);
+ goto err;
+ }
+ /* Initialize the dpdk request object. */
+ instance -> port = port;
+ instance -> queue_size = 1;//the queue size need to change.
+ return instance;
+err:
+ destroy_instance(instance);
+ return NULL;
+}
+
+static int create_bridge(DPDK_Context_t *dpdkc, const int port1, const int port2)
+{
+ DPDKInstance *instance, *peer1, *peer2;
+
+ peer1 = peer2 = NULL;
+ for (instance = dpdkc->instances; instance; instance = instance->next)
+ {
+ if (port1 == instance->port)
+ peer1 = instance;
+ else if (port2 == instance->port)
+ peer2 = instance;
+ }
+
+ if (!peer1 || !peer2)
+ return DAQ_ERROR_NODEV;
+
+ peer1->peer = peer2;
+ peer2->peer = peer1;
+
+ return DAQ_SUCCESS;
+}
+//start a port to get core.
+static int start_instance(DPDK_Context_t *dpdkc, DPDKInstance *instance)
+{
+ DBG("%s():%d.\n",__FUNCTION__,__LINE__);
+
+ struct rte_mempool * mp = dpdkc->mp;
+ int queue = instance -> queue_size;
+ //instance -> queue_size = 4;
+ 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,
+ },
+ };
+ //static const struct rte_eth_conf port_conf = {
+ //.rxmode = { .max_rx_pkt_len = ETHER_MAX_LEN }
+ //};
+ int port = instance -> port;
+ if(port > rte_eth_dev_count()){
+ DBG("%s():%d.\n",__FUNCTION__,__LINE__);
+ return DAQ_ERROR;
+ }
+ int retval = rte_eth_dev_configure(port,queue,queue,&port_conf);
+ if(retval !=0){
+ DPE(dpdkc->errbuf, "%s: Couldn't configure port %d\n", __FUNCTION__, port);
+ return DAQ_ERROR;
+ }
+ for(queue = 0; queue < instance -> queue_size;queue++){
+ retval = rte_eth_rx_queue_setup(port, queue, RX_RING_SIZE,rte_eth_dev_socket_id(port), NULL, mp);
+ if (retval < 0){
+ DPE(dpdkc->errbuf, "%s: Couldn't setup rx queue %d for port %d\n", __FUNCTION__, queue, port);
+ return DAQ_ERROR;
+ }
+ retval = rte_eth_tx_queue_setup(port, queue, TX_RING_SIZE,rte_eth_dev_socket_id(port), NULL);
+ if (retval < 0){
+ DPE(dpdkc->errbuf, "%s: Couldn't setup tx queue %d for port %d\n", __FUNCTION__, queue, port);
+ return DAQ_ERROR;
+ }
+ }
+ retval = rte_eth_dev_start(port);
+ if(retval <0){
+ DPE(dpdkc->errbuf, "%s: Couldn't start device for port %d\n", __FUNCTION__, port);
+ return DAQ_ERROR;
+ }
+ //here need to edit.
+ if(dpdkc->promisc_flag)
+ rte_eth_promiscuous_enable(port);//one slow point
+ instance -> start = 0;
+ instance -> end = 0;
+ instance ->tx_num = 0;
+ instance ->mp = mp;
+ return DAQ_SUCCESS;
+}
+
+
+static int dpdk_daq_initialize(const DAQ_Config_t * config, void **ctxt_ptr, char *errbuf, size_t errlen)
+{
+ DPDK_Context_t *dpdkc;
+ DPDKInstance *instance;
+ DAQ_Dict *entry;
+ char intf[IFNAMSIZ];
+ uint32_t num_intfs = 0;
+ size_t len;
+ int port1,port2,ports;
+ char *dev;
+ static int count =0;
+ char *dpdk_args = NULL;
+ char argv0[] = "NachtZ";
+ char *argv[MAX_ARGS + 1];
+ int rval = DAQ_ERROR,ret;
+ if(isInit == -1){
+ DBG("%s(),%d:Init mutex.\n",__FUNCTION__,__LINE__);
+ pthread_mutex_init(&mutex,NULL);
+ isInit = 0;
+ }
+ pthread_mutex_lock(&mutex);
+ DBG("%s(),%d:Lock Mutex.\n",__FUNCTION__,__LINE__);
+ if(isInit == 1){
+ int idx = -1;
+ dpdkc = local_ctx;
+ for(int i =0;i<dpdkc->intf_count;i++){
+ if (dpdkc->portMap[i] == -1){
+ idx = i;
+ break;
+ }
+ }
+ if (idx == -1){
+ snprintf(errbuf, errlen, "%s: Couldn't found free port!", __FUNCTION__);
+ pthread_mutex_unlock(&mutex);
+ return DAQ_ERROR_NODEV;
+ }
+ dpdkc->portMap[idx] = pthread_self();
+ dpdkc->threadNum =1;
+ *ctxt_ptr = local_ctx;
+
+ pthread_mutex_unlock(&mutex);
+ return DAQ_SUCCESS;
+ }
+ DBG("In NachtZ's 9.13 15:08 edition dpdk module of daq:%d.\n",count ++);
+ dpdkc = calloc(1, sizeof(DPDK_Context_t));
+ if (!dpdkc)
+ {
+ snprintf(errbuf, errlen, "%s: Couldn't allocate memory for the new DPDK context!", __FUNCTION__);
+ rval = DAQ_ERROR_NOMEM;
+ goto err;
+ }
+
+ dpdkc->device = strdup(config->name);
+ if (!dpdkc->device)
+ {
+ snprintf(errbuf, errlen, "%s: Couldn't allocate memory for the device string!", __FUNCTION__);
+ rval = DAQ_ERROR_NOMEM;
+ goto err;
+ }
+
+ dpdkc->snaplen = config->snaplen;
+ dpdkc->timeout = (config->timeout > 0) ? (int) config->timeout : -1;
+ dpdkc->promisc_flag = (config->flags & DAQ_CFG_PROMISC);
+ //here need to be edit.
+ /*int argc = 3;
+ char * argv[] = {"dpdk","-c","3"};
+ ret = rte_eal_init(argc,argv);
+ if(ret <0){
+ snprintf(errbuf, errlen, "%s: EAL init failed!", __FUNCTION__);
+ rval = DAQ_ERROR_INVAL;
+ goto err;
+ }*/
+ for (entry = config->values; entry; entry = entry->next)
+ {
+ if (!strcmp(entry->key, "dpdk_args"))
+ dpdk_args = entry->value;
+ }
+
+ if (!dpdk_args)
+ {
+ snprintf(errbuf, errlen, "%s: Missing EAL arguments!", __FUNCTION__);
+ rval = DAQ_ERROR_INVAL;
+ goto err;
+ }
+ argv[0] = argv0;
+ int argc = parse_args(dpdk_args, &argv[1]) + 1;
+ optind = 1;
+
+ ret = rte_eal_init(argc, argv);
+ if (ret < 0)
+ {
+ snprintf(errbuf, errlen, "%s: Invalid EAL arguments!\n", __FUNCTION__);
+ rval = DAQ_ERROR_INVAL;
+ goto err;
+ }
+
+ ports = rte_eth_dev_count();
+ if(ports <=0){
+ snprintf(errbuf, errlen, "%s: No ports found!", __FUNCTION__);
+ rval = DAQ_ERROR_NODEV;
+ goto err;
+ }
+
+ dpdkc -> mp = rte_pktmbuf_pool_create("MBUF_POOL",
+ NUM_MBUFS*ports, MBUF_CACHE_SIZE, 0,
+ RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
+ if(dpdkc ->mp == NULL){
+
+ snprintf(errbuf, errlen, "%s: No Mem reserved, DPDK errno is %s.", __FUNCTION__,rte_strerror(rte_errno));
+ rval = DAQ_ERROR_NOMEM;
+ goto err;
+ }
+ dev = dpdkc->device;
+ if (*dev == ':' || ((len = strlen(dev)) > 0 && *(dev + len - 1) == ':') ||
+ (config->mode == DAQ_MODE_PASSIVE && strstr(dev, "::")))
+ {
+ snprintf(errbuf, errlen, "%s: Invalid interface specification: '%s'!", __FUNCTION__, dpdkc->device);
+ goto err;
+ }
+
+ while (*dev != '\0')
+ {
+ len = strcspn(dev, ":");
+ if (len >= sizeof(intf))
+ {
+ snprintf(errbuf, errlen, "%s: Interface name too long! (%zu)", __FUNCTION__, len);
+ goto err;
+ }
+ if (len != 0)
+ {
+ dpdkc->intf_count++;
+ if (dpdkc->intf_count > ports)
+ {
+ snprintf(errbuf, errlen, "%s: Using more than %d interfaces is not supported!",
+ __FUNCTION__, ports);
+ goto err;
+ }
+ snprintf(intf, len + 1, "%s", dev);
+ instance = create_instance(intf, dpdkc->instances, errbuf, errlen);
+ if (!instance)
+ goto err;
+
+ instance->next = dpdkc->instances;
+ dpdkc->instances = instance;
+ num_intfs++;
+ if (config->mode != DAQ_MODE_PASSIVE)
+ {
+ if (num_intfs == 2)
+ {
+ //name1 = nmc->instances->next->req.nr_name;
+ //name2 = nmc->instances->req.nr_name;
+ port1 = dpdkc -> instances -> next ->port;
+ port2 = dpdkc -> instances -> port;
+
+ if (create_bridge(dpdkc, port1, port2) != DAQ_SUCCESS)
+ {
+ snprintf(errbuf, errlen, "%s: Couldn't create the bridge between %d and %d!",
+ __FUNCTION__, port1, port2);
+ goto err;
+ }
+ num_intfs = 0;
+ }
+ else if (num_intfs > 2)
+ break;
+ }
+ }
+ else
+ len = 1;
+ dev += len;
+ }
+ /* If there are any leftover unbridged interfaces and we're not in Passive mode, error out. */
+ if (!dpdkc->instances || (config->mode != DAQ_MODE_PASSIVE && num_intfs != 0))
+ {
+ snprintf(errbuf, errlen, "%s: Invalid interface specification: '%s'!",
+ __FUNCTION__, dpdkc->device);
+ goto err;
+ }
+ //to init the thread map and instances map, then put this thread into the thread map.
+ if(dpdkc->intf_count >0){
+ dpdkc->insMap = calloc(1,dpdkc->intf_count * sizeof(DPDKInstance *));
+ dpdkc->portMap = calloc(1,dpdkc->intf_count * sizeof(pthread_t));
+ if(dpdkc->insMap == NULL || dpdkc->portMap == NULL){
+ snprintf(errbuf, errlen, "%s: Can't calloc the insMap's mem!",
+ __FUNCTION__ );
+ goto err;
+ }
+ instance = dpdkc->instances;
+ for (int i =0;instance!= NULL&& i< dpdkc->intf_count;i++){
+ dpdkc->insMap[i] = instance;
+ instance->state = DAQ_STATE_INITIALIZED;
+ instance = instance->next;
+ dpdkc->portMap[i] = -1;
+ DBG("%s() in %d: isnMap %d is %d.\n",__FUNCTION__,__LINE__,i,dpdkc->insMap[i]->port);
+ }
+ dpdkc->portMap[0] = pthread_self();//get the id;
+ dpdkc->threadNum = 1;
+ }
+
+
+ /* Initialize other default configuration values. */
+ dpdkc->debug = 0;
+
+ /* Import the configuration dictionary requests. */
+ for (entry = config->values; entry; entry = entry->next)
+ {
+ if (!strcmp(entry->key, "debug"))
+ dpdkc->debug = 1;
+ }
+
+ dpdkc->state = DAQ_STATE_INITIALIZED;
+ *ctxt_ptr = dpdkc;
+ local_ctx = dpdkc;
+ isInit = 1;
+ DBG("%s() in %d:unluck, T.\n",__FUNCTION__,__LINE__);
+ pthread_mutex_unlock(&mutex);
+ return DAQ_SUCCESS;
+
+err:
+ DBG("%s() in %d:Error :%s.\n",__FUNCTION__,__LINE__,errbuf);
+ if (dpdkc)
+ {
+ dpdk_close(dpdkc);
+ if (dpdkc->device)
+ free(dpdkc->device);
+ free(dpdkc);
+ }
+ DBG("%s() in %d:unluck, F.\n",__FUNCTION__,__LINE__);
+ pthread_mutex_unlock(&mutex);
+ return rval;
+}
+
+static int dpdk_daq_set_filter(void *handle, const char *filter)
+{
+ DPDK_Context_t *dpdkc = (DPDK_Context_t *) handle;
+ struct sfbpf_program fcode;
+ int idx = -1;
+ FIND_IDX();
+ if(idx == -1){
+ DPE(dpdkc->errbuf, "%s: Couldn't find the port!", __FUNCTION__);
+ return DAQ_ERROR;
+ }
+ if (dpdkc->insMap[idx]->filter)
+ free(dpdkc->insMap[idx]->filter);
+
+ dpdkc->insMap[idx]->filter = strdup(filter);
+ if (!dpdkc->insMap[idx]->filter)
+ {
+ DPE(dpdkc->insMap[idx]->errbuf, "%s: Couldn't allocate memory for the filter string!", __FUNCTION__);
+ return DAQ_ERROR;
+ }
+
+ if (sfbpf_compile(dpdkc->snaplen, DLT_EN10MB, &fcode, dpdkc->insMap[idx]->filter, 1, 0) < 0)
+ {
+ DPE(dpdkc->insMap[idx]->errbuf, "%s: BPF state machine compilation failed!", __FUNCTION__);
+ return DAQ_ERROR;
+ }
+
+ sfbpf_freecode(&dpdkc->insMap[idx]->filter);
+ dpdkc->insMap[idx]->fcode.bf_len = fcode.bf_len;
+ dpdkc->insMap[idx]->fcode.bf_insns = fcode.bf_insns;
+
+ return DAQ_SUCCESS;
+}
+
+static int dpdk_daq_start(void *handle)
+{
+ DBG("%s() in line %d.\n",__FUNCTION__,__LINE__);
+ DPDK_Context_t *dpdkc = (DPDK_Context_t *) handle;
+ DPDKInstance *instance;
+ int idx = -1;
+ FIND_IDX();
+ if(idx == -1){
+ DBG("%s() in line %d: 404.\n",__FUNCTION__,__LINE__);
+ return DAQ_ERROR;
+ }
+ instance = dpdkc->insMap[idx];
+ if (start_instance(dpdkc, instance) != DAQ_SUCCESS)
+ return DAQ_ERROR;
+//todo: change the dpdkc->state to instance->state
+ memset(&instance->stats, 0, sizeof(DAQ_Stats_t));;
+
+ instance->state = DAQ_STATE_STARTED;
+
+ return DAQ_SUCCESS;
+}
+
+static const DAQ_Verdict verdict_translation_table[MAX_DAQ_VERDICT] = {
+ DAQ_VERDICT_PASS, /* DAQ_VERDICT_PASS */
+ DAQ_VERDICT_BLOCK, /* DAQ_VERDICT_BLOCK */
+ DAQ_VERDICT_PASS, /* DAQ_VERDICT_REPLACE */
+ DAQ_VERDICT_PASS, /* DAQ_VERDICT_WHITELIST */
+ DAQ_VERDICT_BLOCK, /* DAQ_VERDICT_BLACKLIST */
+ DAQ_VERDICT_PASS, /* DAQ_VERDICT_IGNORE */
+ DAQ_VERDICT_BLOCK /* DAQ_VERDICT_RETRY */
+};
+
+static int dpdk_daq_acquire(void *handle, int cnt, DAQ_Analysis_Func_t callback, DAQ_Meta_Func_t metaback, void *user)
+{
+ //struct pollfd pfd[dpdk_MAX_INTERFACES];
+ //struct dpdk_ring *rx_ring, *tx_ring;
+ //struct dpdk_slot *rx_slot, *tx_slot;
+ DPDK_Context_t *dpdkc = (DPDK_Context_t *) handle;
+ int idx = -1;
+ FIND_IDX();
+ if (idx == -1){
+ return 0;
+ }
+
+ DPDKInstance *instance = dpdkc->insMap[idx], *peer;
+ DAQ_PktHdr_t daqhdr;
+ DAQ_Verdict verdict;
+ const uint8_t *data;
+ uint32_t i, rx_cur;
+ uint16_t len;
+ int got_one, ignored_one,sent_one;
+ int ret, c = 0,queue;
+ int burst_size;
+ struct timeval ts;
+ struct rte_mbuf *bufs[BURST_SIZE];//one possible slow point
+ while (c < cnt || cnt <= 0)
+ {
+ got_one = 0;
+ ignored_one = 0;
+ // start_rx_ring = instance->cur_rx_ring;
+
+ /* Has breakloop() been called? */
+ if (instance->break_loop)
+ {
+ instance->break_loop = 0;
+ return 0;
+ }
+ peer = instance -> peer;
+ if(peer){
+ burst_size = peer->end - peer->start;
+ if(burst_size >0)
+ goto poll;
+ }
+
+ verdict = DAQ_VERDICT_PASS;
+
+ /* If we blocked on forwarding previously, it means we know we
+ already want to send this packet, so attempt to do so
+ immediately. */
+ /*
+ if (instance->flags & NMINST_FWD_BLOCKED)
+ {
+ instance->flags &= ~NMINST_FWD_BLOCKED;
+ got_one = 1;
+ goto send_packet;
+ }
+
+ nmc->stats.hw_packets_received++;
+
+ if (nmc->fcode.bf_insns && sfbpf_filter(nmc->fcode.bf_insns, data, len, len) == 0)
+ {
+ ignored_one = 1;
+ nmc->stats.packets_filtered++;
+ goto send_packet;
+ }*/
+ for(queue = 0;queue < instance -> queue_size;queue ++){
+ gettimeofday(&ts,0);//one slow point
+ if(cnt <=0 || BURST_SIZE + c <= cnt){
+ burst_size = BURST_SIZE;
+ }else{
+ burst_size = cnt - c;
+ }
+ uint16_t nb_rx = rte_eth_rx_burst(instance->port,queue,bufs,burst_size);
+ if (unlikely(nb_rx == 0))
+ continue;
+ for(i =0;i<nb_rx;++i){
+ verdict = DAQ_VERDICT_PASS;
+ data = rte_pktmbuf_mtod(bufs[i],void *);
+ len = rte_pktmbuf_data_len(bufs[i]);
+ instance->stats.hw_packets_received ++;
+ if (instance->fcode.bf_insns && sfbpf_filter(instance->fcode.bf_insns, data, len, len) == 0)
+ {
+ ignored_one = 1;
+ instance->stats.packets_filtered++;
+ goto send_packet;
+ }
+ got_one = 1;
+ daqhdr.ts = ts;
+ daqhdr.caplen = len;
+ daqhdr.pktlen = len;
+ daqhdr.ingress_index = instance->index;
+ daqhdr.egress_index = peer ? peer->index : DAQ_PKTHDR_UNKNOWN;
+ daqhdr.ingress_group = DAQ_PKTHDR_UNKNOWN;
+ daqhdr.egress_group = DAQ_PKTHDR_UNKNOWN;
+ daqhdr.flags = 0;
+ daqhdr.opaque = 0;
+ daqhdr.priv_ptr = NULL;
+ daqhdr.address_space_id = 0;
+
+ if (callback){
+ verdict = callback(user, &daqhdr, data);
+ if (verdict >= MAX_DAQ_VERDICT)
+ verdict = DAQ_VERDICT_PASS;
+ instance->stats.verdicts[verdict]++;
+ verdict = verdict_translation_table[verdict];
+ }
+ instance->stats.packets_received++;
+ c++;
+send_packet:
+ if (verdict == DAQ_VERDICT_PASS && peer){
+ peer->bufs[peer->end] =bufs[i];
+ peer->end ++;
+ }else{
+ rte_pktmbuf_free(bufs[i]);
+ }
+ }
+ }
+
+ if (peer){
+ burst_size = peer->end - peer->start;
+ if (unlikely(burst_size == 0))
+ continue;
+
+poll:
+ for (queue = 0;burst_size !=0 && queue < peer->queue_size;queue ++){
+ const uint16_t nb_tx = rte_eth_tx_burst(peer->port,queue,&peer->bufs[peer->start],burst_size);
+ if (unlikely(nb_tx ==0))
+ continue;
+ sent_one = 1;
+ burst_size -= nb_tx;
+ peer->start += nb_tx;
+ }
+ if (burst_size == 0){
+ peer->start = 0;
+ peer->end = 0;
+ }
+ }
+
+ if (!got_one && !ignored_one && !sent_one)
+ {
+ struct timeval now;
+ if(dpdkc->timeout == -1)
+ continue;
+ gettimeofday(&now,0);
+ if (now.tv_sec > ts.tv_sec ||(now.tv_usec - ts.tv_usec) > dpdkc->timeout * 1000)
+ return 0;
+ }else{
+ gettimeofday(&ts,0);;//slow down
+ }
+ }
+
+ return 0;
+}
+
+static int dpdk_daq_inject(void *handle, const DAQ_PktHdr_t *hdr,
+ const uint8_t *packet_data, uint32_t len,
+ int reverse)
+{
+ //this function do not edit. As it look for instance according to it's own mark.
+ DPDK_Context_t *dpdkc = (DPDK_Context_t *) handle;
+ DPDKInstance *instance;
+ struct rte_mbuf * m = NULL;
+
+ /* Find the instance that the packet was received on. */
+ for (instance = dpdkc->instances; instance; instance = instance->next)
+ {
+ if (instance->index == hdr->ingress_index)
+ break;
+ }
+
+ if (!instance)
+ {
+ DPE(dpdkc->errbuf, "%s: Unrecognized ingress interface specified: %u",
+ __FUNCTION__, hdr->ingress_index);
+ return DAQ_ERROR_NODEV;
+ }
+
+ if (!reverse && !(instance = instance->peer))
+ {
+ DPE(dpdkc->errbuf, "%s: Specified ingress interface (%u) has no peer for forward injection.",
+ __FUNCTION__, hdr->ingress_index);
+ return DAQ_ERROR_NODEV;
+ }
+
+ /* Find a TX ring with space to send on. */
+ m = rte_pktmbuf_alloc(instance->mp);
+ if(m == NULL){
+ DPE(dpdkc->errbuf, "%s: Specified ingress interface (%u) has no mem reserved.",
+ __FUNCTION__, hdr->ingress_index);
+ return DAQ_ERROR_NOMEM;
+ }
+ rte_memcpy(rte_pktmbuf_mtod(m,void *),packet_data,len);
+ //here may have bugs.
+ if(0 == rte_eth_tx_burst(instance->port,instance->tx_num &3,&m,1)){
+ DPE(dpdkc->errbuf, "%s: Could not Send. Try again.", __FUNCTION__);
+ return DAQ_ERROR_AGAIN;
+ }
+ instance->tx_num ++;
+ return DAQ_SUCCESS;
+ /* If we got here, it means we couldn't find an available TX slot, so tell the user to try again. */
+
+}
+
+static int dpdk_daq_breakloop(void *handle)
+{
+ DPDK_Context_t *dpdkc = (DPDK_Context_t *) handle;
+
+ int idx = -1;
+ FIND_IDX();
+ if (idx == -1){
+ for (int i =0;i< dpdkc->intf_count;i++){
+ dpdkc->insMap[i]->break_loop = 1;
+ }
+ return DAQ_SUCCESS;
+ }
+ dpdkc->insMap[idx]->break_loop = 1;
+
+ return DAQ_SUCCESS;
+}
+
+static int dpdk_daq_stop(void *handle)
+{
+ DPDK_Context_t *dpdkc = (DPDK_Context_t *) handle;
+
+ dpdk_close(dpdkc);
+
+ return DAQ_SUCCESS;
+}
+
+static void dpdk_daq_shutdown(void *handle)
+{
+ DPDK_Context_t *dpdkc = (DPDK_Context_t *) handle;
+
+ dpdk_close(dpdkc);
+ if(dpdkc->threadNum != 0){
+ return ;
+ }
+ if (dpdkc->device)
+ free(dpdkc->device);
+ if (dpdkc->filter)
+ free(dpdkc->filter);
+ free(dpdkc);
+ isInit = 0;
+}
+
+static DAQ_State dpdk_daq_check_status(void *handle)
+{
+ DPDK_Context_t *dpdkc = (DPDK_Context_t *) handle;
+ int idx = -1;
+ FIND_IDX();
+ return dpdkc->insMap[idx]->state;
+}
+
+static int dpdk_daq_get_stats(void *handle, DAQ_Stats_t * stats)
+{
+ DPDK_Context_t *dpdkc = (DPDK_Context_t *) handle;
+ int idx = -1;
+ FIND_IDX();
+ memcpy(stats, &dpdkc->insMap[idx]->stats, sizeof(DAQ_Stats_t));
+
+ return DAQ_SUCCESS;
+}
+
+static void dpdk_daq_reset_stats(void *handle)
+{
+ DPDK_Context_t *dpdkc = (DPDK_Context_t *) handle;
+ int idx = -1;
+ FIND_IDX();
+ memset(&dpdkc->insMap[idx]->stats, 0, sizeof(DAQ_Stats_t));;
+}
+
+static int dpdk_daq_get_snaplen(void *handle)
+{
+ DPDK_Context_t *dpdkc = (DPDK_Context_t *) handle;
+
+ return dpdkc->snaplen;
+}
+
+static uint32_t dpdk_daq_get_capabilities(void *handle)
+{
+ return DAQ_CAPA_BLOCK | DAQ_CAPA_REPLACE | DAQ_CAPA_INJECT |
+ DAQ_CAPA_UNPRIV_START | DAQ_CAPA_BREAKLOOP | DAQ_CAPA_BPF |
+ DAQ_CAPA_DEVICE_INDEX;
+}
+
+static int dpdk_daq_get_datalink_type(void *handle)
+{
+ return DLT_EN10MB;
+}
+
+static const char *dpdk_daq_get_errbuf(void *handle)
+{
+ DPDK_Context_t *dpdkc = (DPDK_Context_t *) handle;
+ int idx = -1;
+ FIND_IDX();
+ return dpdkc->insMap[idx]->errbuf;
+}
+
+static void dpdk_daq_set_errbuf(void *handle, const char *string)
+{
+ DPDK_Context_t *dpdkc = (DPDK_Context_t *) handle;
+
+ if (!string)
+ return;
+ int idx = -1;
+ FIND_IDX();
+ DPE(dpdkc->insMap[idx]->errbuf, "%s", string);
+}
+
+static int dpdk_daq_get_device_index(void *handle, const char *device)
+{
+ DPDK_Context_t *dpdkc = (DPDK_Context_t *) handle;
+ DPDKInstance *instance;
+ int port;
+ if(sscanf(device,"dpdk%d",&port)!=1){
+ return DAQ_ERROR_NODEV;
+ }
+
+ for (instance = dpdkc->instances; instance; instance = instance->next)
+ {
+ if (port == instance->port)
+ return instance->index;
+ }
+
+ return DAQ_ERROR_NODEV;
+}
+
+#ifdef BUILDING_SO
+DAQ_SO_PUBLIC const DAQ_Module_t DAQ_MODULE_DATA =
+#else
+const DAQ_Module_t dpdk_daq_module_data =
+#endif
+{
+ /* .api_version = */ DAQ_API_VERSION,
+ /* .module_version = */ DAQ_DPDK_VERSION,
+ /* .name = */ "dpdk",
+ /* .type = */ DAQ_TYPE_INLINE_CAPABLE | DAQ_TYPE_INTF_CAPABLE | DAQ_TYPE_MULTI_INSTANCE,
+ /* .initialize = */ dpdk_daq_initialize,
+ /* .set_filter = */ dpdk_daq_set_filter,
+ /* .start = */ dpdk_daq_start,
+ /* .acquire = */ dpdk_daq_acquire,
+ /* .inject = */ dpdk_daq_inject,