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dpdk.cpp
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#include <stdlib.h>
#include <inttypes.h>
#include <unistd.h>
#include <sys/resource.h>
#include <string.h>
#include "pstat.h"
#include "tools.h"
#include "tools_global.h"
#include "sync.h"
#include "pcap_queue.h"
#include "dpdk.h"
#if HAVE_LIBDPDK
#define ALLOW_EXPERIMENTAL_API 1
#include <rte_config.h>
#include <rte_common.h>
#include <rte_errno.h>
#include <rte_log.h>
#include <rte_malloc.h>
#include <rte_memory.h>
#include <rte_eal.h>
#include <rte_launch.h>
#include <rte_atomic.h>
#include <rte_cycles.h>
#include <rte_lcore.h>
#include <rte_per_lcore.h>
#include <rte_branch_prediction.h>
#include <rte_interrupts.h>
#include <rte_random.h>
#include <rte_debug.h>
#include <rte_ether.h>
#include <rte_ethdev.h>
#include <rte_mempool.h>
#include <rte_mbuf.h>
#include <rte_bus.h>
#if HAVE_LIBDPDK_VDEV
#include <rte_bus_vdev.h>
#endif
extern string opt_dpdk_cpu_cores;
extern string opt_dpdk_cpu_cores_map;
extern int opt_dpdk_main_thread_lcore;
extern string opt_dpdk_read_thread_lcore;
extern string opt_dpdk_worker_thread_lcore;
extern string opt_dpdk_worker2_thread_lcore;
extern bool opt_dpdk_worker_slave_thread;
extern int opt_dpdk_memory_channels;
extern string opt_dpdk_pci_device;
extern int opt_dpdk_force_max_simd_bitwidth;
extern int opt_dpdk_nb_mbufs;
extern bool opt_dpdk_nb_mbufs_strictly;
extern int opt_dpdk_pkt_burst;
extern int opt_dpdk_ring_size;
extern int opt_dpdk_mempool_cache_size;
extern int opt_dpdk_batch_read;
extern int opt_dpdk_copy_packetbuffer;
extern int opt_dpdk_mbufs_in_packetbuffer;
extern int opt_dpdk_timer_reset_interval;
extern int opt_dpdk_mtu;
extern vector<string> opt_dpdk_vdev;
#define MAXIMUM_SNAPLEN 262144
#define DPDK_ARGC_MAX 64
#define DPDK_DEF_LOG_LEV RTE_LOG_ERR
#define DPDK_LIB_NAME ((char*)"vm_dpdk")
#if DPDK_ENV_CFG
#define DPDK_CFG_ENV_NAME "DPDK_CFG"
#define DPDK_DEF_CFG "--log-level=error -l0 -dlibrte_pmd_e1000.so -dlibrte_pmd_ixgbe.so -dlibrte_mempool_ring.so"
#define DPDK_CFG_MAX_LEN 1024
#endif
#define DPDK_PORTID_MAX (64 * 1024U - 1)
#define DPDK_NB_MBUFS ((opt_dpdk_nb_mbufs ? opt_dpdk_nb_mbufs : 1024) * (opt_dpdk_nb_mbufs_strictly ? 1 : 1024))
#define DPDK_DEF_MAC_ADDR "00:00:00:00:00:00"
#define DPDK_TX_BUF_NAME "tx_buffer"
#define DPDK_PREFIX "dpdk:"
#define DPDK_MAC_ADDR_SIZE 32
#define DPDK_PCI_ADDR_SIZE 16
#define MAX_PKT_BURST (opt_dpdk_pkt_burst ? opt_dpdk_pkt_burst : 32)
#define RING_SIZE (opt_dpdk_ring_size ? opt_dpdk_ring_size * 1024 : DPDK_NB_MBUFS)
#define MBUF_POOL_NAME "mbuf_pool"
#define MEMPOOL_CACHE_SIZE (opt_dpdk_mempool_cache_size ? opt_dpdk_mempool_cache_size : 512)
#define DPDK_ERR_PERM_MSG "permission denied, DPDK needs root permission"
// #ifdef HAVE_STRUCT_RTE_ETHER_ADDR
#define ETHER_ADDR_TYPE struct rte_ether_addr
// #else
// #define ETHER_ADDR_TYPE struct ether_addr
// #endif
#define DPDK_ENV_CFG 0
#define DPDK_TIMESTAMP_IN_MBUF 1
#define DPDK_WAIT_FOR_EMPTY_RING_IF_FULL 1
#define WORKER2_THREAD_SUPPORT 0
#define DPDK_ZC_SUPPORT 0
#define DEBUG_CYCLES false
#define DEBUG_CYCLES_MAX_LT_MS 100
#define DEBUG_EXT_STAT false
#define ENABLE_WORKER_SLAVE (opt_dpdk_worker_slave_thread && opt_dpdk_copy_packetbuffer && !opt_dpdk_mbufs_in_packetbuffer)
#define MIN(a,b) (((a)<(b))?(a):(b))
#if DEBUG_CYCLES
struct sDpdk_cycles {
u_int64_t count;
u_int64_t sum;
u_int64_t min;
u_int64_t max;
u_int64_t begin;
u_int64_t end;
bool reset;
inline void setBegin() {
if(reset) {
memset(this, 0, sizeof(*this));
reset = false;
}
begin = rte_get_timer_cycles();
}
inline void setEnd() {
end = rte_get_timer_cycles();
u_int64_t diff = end - begin;
++count;
sum += diff;
if(!min || diff < min) min = diff;
if(diff > max) max = diff;
}
};
#endif
struct dpdk_ts_helper{
uint64_t start_time;
uint64_t start_cycles;
uint64_t hz;
};
class cDpdkTools {
public:
enum eTypeLcore {
_tlc_read,
_tlc_worker,
_tlc_worker2
};
public:
cDpdkTools();
void init();
void setLCoresMap();
int getFreeLcore(eTypeLcore type, int numa_node);
void setUseLcore(int lcore);
void setFreeLcore(int lcore);
string getAllCores(bool without_main, bool detect_ht);
string getCoresMap();
int getMainThreadLcore();
void getCoresForLcore(int lcore, list<int> *cores);
string getCoresForLcore(int lcore);
private:
int getFreeLcore(map<int, bool> &main_map, int numa_node);
bool lcoreIsUsed(int lcore);
bool lcoreIsInAny(int lcore);
private:
int main_thread_lcore;
map<int, bool> read_lcores;
map<int, bool> worker_lcores;
map<int, bool> worker2_lcores;
map<int, bool> used_lcores;
string lcores_map_str;
map<int, list<int> > lcores_map;
volatile int _sync_lcore;
};
struct sDpdk {
uint16_t portid;
bool portid_set;
int must_clear_promisc;
rte_mempool *pktmbuf_pool;
rte_ring *rx_to_worker_ring;
#if WORKER2_THREAD_SUPPORT
rte_ring *worker_to_worker2_ring;
#endif
u_int64_t prev_ts_us;
u_int64_t curr_ts_us;
rte_eth_stats prev_stats;
rte_eth_stats curr_stats;
dpdk_ts_helper ts_helper;
ETHER_ADDR_TYPE eth_addr;
char mac_addr[DPDK_MAC_ADDR_SIZE];
char pci_addr[DPDK_PCI_ADDR_SIZE];
sDpdkConfig config;
uint64_t pps;
uint64_t bps;
uint64_t bpf_drop;
uint64_t ring_full_drop;
#if WORKER2_THREAD_SUPPORT
uint64_t ring2_full_drop;
#endif
bool terminating;
int rte_read_thread_pid;
int rte_worker_thread_pid;
int rte_worker_slave_thread_pid;
#if WORKER2_THREAD_SUPPORT
int rte_worker2_thread_pid;
#endif
pstat_data rte_read_thread_pstat_data[2];
pstat_data rte_worker_thread_pstat_data[2];
pstat_data rte_worker_slave_thread_pstat_data[2];
#if WORKER2_THREAD_SUPPORT
pstat_data rte_worker2_thread_pstat_data[2];
#endif
volatile bool initialized;
#if DEBUG_CYCLES
sDpdk_cycles cycles[10];
#endif
bool cycles_reset;
rte_mbuf **pkts_burst;
u_int32_t *pkts_len;
void **pb_headers;
void **pb_packets;
volatile u_int32_t batch_start;
volatile u_int32_t batch_count;
volatile int worker_slave_state;
u_int64_t timestamp_us;
#if LOG_PACKETS_SUM
u_int64_t count_packets[2];
#endif
u_int64_t last_stat_ipackets;
u_int64_t last_stat_ierrors;
u_int64_t last_stat_imissed;
u_int64_t last_stat_nombuf;
u_int64_t last_stat_cout_packets[2];
u_int64_t last_stat_ring_full_drop;
u_int64_t last_stat_ring2_full_drop;
sDpdk() {
memset((void*)this, 0, sizeof(*this));
}
void worker_alloc() {
pkts_burst = new FILE_LINE(0) rte_mbuf*[MAX_PKT_BURST];
if(ENABLE_WORKER_SLAVE) {
if(!pkts_len) {
pkts_len = new FILE_LINE(0) u_int32_t[MAX_PKT_BURST];
}
if(!pb_headers) {
pb_headers = new FILE_LINE(0) void*[MAX_PKT_BURST];
}
if(!pb_packets) {
pb_packets = new FILE_LINE(0) void*[MAX_PKT_BURST];
}
}
}
void worker_free() {
if(pkts_len) {
delete [] pkts_len;
}
if(pb_headers) {
delete [] pb_headers;
}
if(pb_packets) {
delete [] pb_packets;
}
delete [] pkts_burst;
}
};
static int rte_read_thread(void *arg);
static int rte_worker_thread(void *arg);
static int rte_worker_slave_thread(void *arg);
#if WORKER2_THREAD_SUPPORT
static int rte_worker2_thread(void *arg);
#endif
static inline void dpdk_process_packet(sDpdk *dpdk, rte_mbuf *mbuff, u_int64_t timestamp_us);
static inline void dpdk_process_packet_2__std(sDpdk *dpdk, rte_mbuf *mbuff, u_int64_t timestamp_us
#if WORKER2_THREAD_SUPPORT
,bool free_mbuff
#endif
);
static inline void dpdk_process_packet_2__std_2(sDpdk *dpdk, rte_mbuf *mbuff, u_int64_t timestamp_us
#if WORKER2_THREAD_SUPPORT
,bool free_mbuff
#endif
);
static inline void dpdk_process_packet_2__mbufs_in_packetbuffer(sDpdk *dpdk, rte_mbuf *mbuff, u_int64_t timestamp_us
#if WORKER2_THREAD_SUPPORT
,bool free_mbuff
#endif
);
static inline void dpdk_copy_data(unsigned char *data, uint32_t maxlen, struct rte_mbuf *mbuf);
static inline uint32_t dpdk_gather_data(unsigned char *data, uint32_t maxlen, struct rte_mbuf *mbuf);
static inline u_int32_t get_len(rte_mbuf *mbuf);
static inline u_int32_t get_caplen(u_int32_t len, sDpdk *dpdk);
static inline u_int64_t get_timestamp_us(sDpdk *dpdk);
static int dpdk_pre_init(string *error_str);
static uint16_t portid_by_device(const char * device);
#if DPDK_ENV_CFG
static int parse_dpdk_cfg(char* dpdk_cfg,char** dargv);
#endif
static void dpdk_eval_res(int res_no, const char *cust_error, int syslog_print, string *error_str, const char *fmt, ...);
static int dpdk_init_timer(sDpdk *dpdk);
static void eth_addr_str(ETHER_ADDR_TYPE *addrp, char* mac_str, int len);
static int check_link_status(uint16_t portid, struct rte_eth_link *plink);
static int is_dpdk_pre_inited = 0;
#if DPDK_ENV_CFG
static char dpdk_cfg_buf[DPDK_CFG_MAX_LEN];
#endif
static rte_eth_conf port_conf;
#if DPDK_TIMESTAMP_IN_MBUF == 1
static rte_mbuf_dynfield timestamp_dynfield_desc;
static int timestamp_dynfield_offset = -1;
#endif
static cDpdkTools *dpdk_tools;
sDpdkHandle *create_dpdk_handle() {
return(new sDpdk);
}
void destroy_dpdk_handle(sDpdkHandle *dpdk) {
if(dpdk->portid_set) {
if(dpdk->must_clear_promisc) {
rte_eth_promiscuous_disable(dpdk->portid);
}
rte_eth_dev_stop(dpdk->portid);
rte_eth_dev_close(dpdk->portid);
}
delete dpdk;
}
int dpdk_activate(sDpdkConfig *config, sDpdk *dpdk, std::string *error) {
int ret = PCAP_ERROR;
uint16_t nb_ports = 0;
uint16_t portid = DPDK_PORTID_MAX;
struct rte_eth_rxconf rxq_conf;
struct rte_eth_txconf txq_conf;
// port_conf.rxmode.split_hdr_size = 0; // obsolete
port_conf.txmode.mq_mode = RTE_ETH_MQ_TX_NONE;
struct rte_eth_conf local_port_conf = port_conf;
struct rte_eth_dev_info dev_info;
int is_port_up = 0;
struct rte_eth_link link;
//init EAL; fail if we have insufficient permission
int is_dpdk_pre_inited_old = is_dpdk_pre_inited;
ret = dpdk_pre_init(error);
if(ret > 0 && is_dpdk_pre_inited_old <= 0 && is_dpdk_pre_inited > 0) {
config->init_in_activate = true;
} else if(ret < 0) {
return(PCAP_ERROR);
} else if(ret == 0) {
*error = "DPDK is not available on this machine";
return(PCAP_ERROR_NO_SUCH_DEVICE);
}
ret = dpdk_init_timer(dpdk);
dpdk_eval_res(ret, NULL, 2, error,
"dpdk_activate(%s) - dpdk_init_timer",
config->device);
if(ret < 0) {
return(PCAP_ERROR);
}
nb_ports = rte_eth_dev_count_avail();
if(nb_ports == 0) {
dpdk_eval_res(0, "no ethernet ports", 2, error,
"dpdk_activate(%s) - rte_eth_dev_count_avail",
config->device);
return(PCAP_ERROR);
}
if(opt_dpdk_vdev.size()) {
ret = rte_eth_dev_get_port_by_name(config->device, &portid);
dpdk_eval_res(ret, NULL, 2, error,
"dpdk_activate(%s) - rte_eth_dev_get_port_by_name(%s)",
config->device,
config->device);
} else {
ret = -1;
}
if(ret < 0) {
portid = portid_by_device(config->device);
if(portid == DPDK_PORTID_MAX) {
dpdk_eval_res(0, "portid is invalid", 2, error,
"dpdk_activate(%s) - portid_by_device(%s)",
config->device,
config->device);
return(PCAP_ERROR_NO_SUCH_DEVICE);
}
}
int numa_node = rte_eth_dev_socket_id(portid);
dpdk_eval_res(numa_node < 0 ? -rte_errno : 0, NULL, 2, error,
"dpdk_activate(%s) - rte_eth_dev_socket_id(%i) - rslt (numa_node): %i",
config->device,
portid,
numa_node);
dpdk->portid = portid;
dpdk->portid_set = true;
if(config->snapshot <= 0 || config->snapshot > MAXIMUM_SNAPLEN) {
config->snapshot = MAXIMUM_SNAPLEN;
}
// create the mbuf pool
dpdk->pktmbuf_pool = rte_pktmbuf_pool_create((string(MBUF_POOL_NAME) + "_" + config->device).c_str(), DPDK_NB_MBUFS,
MEMPOOL_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE,
rte_socket_id());
dpdk_eval_res(dpdk->pktmbuf_pool == NULL ? -rte_errno : 0, dpdk->pktmbuf_pool == NULL && !rte_errno ? "failed allocation mbuf pool" : NULL, 2, error,
"dpdk_activate(%s) - rte_pktmbuf_pool_create",
config->device);
if(dpdk->pktmbuf_pool == NULL) {
return(PCAP_ERROR);
}
// config dev
ret = rte_eth_dev_info_get(portid, &dev_info);
dpdk_eval_res(ret, NULL, 2, error,
"dpdk_activate(%s) - rte_eth_dev_info_get(%i)",
config->device,
portid);
if(ret < 0) {
return(PCAP_ERROR);
}
if(dev_info.tx_offload_capa & RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE) {
local_port_conf.txmode.offloads |= RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE;
}
// only support 1 queue
ret = rte_eth_dev_configure(portid, 1, 1, &local_port_conf);
dpdk_eval_res(ret, NULL, 2, error,
"dpdk_activate(%s) - rte_eth_dev_configure(%i)",
config->device,
portid);
if(ret < 0) {
return(PCAP_ERROR);
}
// adjust rx tx
extern int opt_dpdk_nb_rx;
extern int opt_dpdk_nb_tx;
uint16_t nb_rx = opt_dpdk_nb_rx;
uint16_t nb_tx = opt_dpdk_nb_tx;
ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rx, &nb_tx);
dpdk_eval_res(ret, NULL, 2, error,
"dpdk_activate(%s) - rte_eth_dev_adjust_nb_rx_tx_desc(%i)",
config->device,
portid);
if(ret < 0) {
return(PCAP_ERROR);
}
// get MAC addr
rte_eth_macaddr_get(portid, &(dpdk->eth_addr));
eth_addr_str(&(dpdk->eth_addr), dpdk->mac_addr, DPDK_MAC_ADDR_SIZE-1);
// init one RX queue
rxq_conf = dev_info.default_rxconf;
rxq_conf.offloads = local_port_conf.rxmode.offloads;
rxq_conf.rx_free_thresh = MAX_PKT_BURST;
ret = rte_eth_rx_queue_setup(portid, 0, nb_rx,
rte_eth_dev_socket_id(portid),
&rxq_conf,
dpdk->pktmbuf_pool);
dpdk_eval_res(ret, NULL, 2, error,
"dpdk_activate(%s) - rte_eth_rx_queue_setup(%i)",
config->device,
portid);
if(ret < 0) {
return(PCAP_ERROR);
}
// init one TX queue
txq_conf = dev_info.default_txconf;
txq_conf.offloads = local_port_conf.txmode.offloads;
ret = rte_eth_tx_queue_setup(portid, 0, nb_tx,
rte_eth_dev_socket_id(portid),
&txq_conf);
dpdk_eval_res(ret, NULL, 2, error,
"dpdk_activate(%s) - rte_eth_tx_queue_setup(%i)",
config->device,
portid);
if(ret < 0) {
return(PCAP_ERROR);
}
// Initialize TX buffers
rte_eth_dev_tx_buffer *tx_buffer;
tx_buffer = (rte_eth_dev_tx_buffer*)rte_zmalloc_socket(DPDK_TX_BUF_NAME,
RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
rte_eth_dev_socket_id(portid));
dpdk_eval_res(tx_buffer == NULL ? -rte_errno : 0, NULL, 2, error,
"dpdk_activate(%s) - rte_zmalloc_socket",
config->device);
if(tx_buffer == NULL) {
return(PCAP_ERROR);
}
ret = rte_eth_tx_buffer_init(tx_buffer, MAX_PKT_BURST);
dpdk_eval_res(ret, NULL, 2, error,
"dpdk_activate(%s) - rte_eth_tx_buffer_init",
config->device);
if(ret < 0) {
return(PCAP_ERROR);
}
if(config->type_worker_thread != _dpdk_twt_na) {
dpdk->rx_to_worker_ring = rte_ring_create((string("rx_to_worker") + "_" + config->device).c_str(), RING_SIZE, rte_socket_id(), RING_F_SP_ENQ | RING_F_SC_DEQ);
dpdk_eval_res(dpdk->rx_to_worker_ring == NULL ? -rte_errno : 0, NULL, 2, error,
"dpdk_activate(%s) - rte_ring_create(rx_to_worker)",
config->device);
if(dpdk->rx_to_worker_ring == NULL) {
return(PCAP_ERROR);
}
}
#if WORKER2_THREAD_SUPPORT
if(config->type_worker_thread == _dpdk_twt_rte && config->type_worker2_thread == _dpdk_tw2t_rte) {
dpdk->worker_to_worker2_ring = rte_ring_create((string("worker_to_worker2") + "_" + config->device).c_str(), RING_SIZE, rte_socket_id(), RING_F_SP_ENQ | RING_F_SC_DEQ);
dpdk_eval_res(dpdk->worker_to_worker2_ring == NULL ? -rte_errno : 0, NULL, 2, error,
"dpdk_activate(%s) - rte_ring_create(worker_to_worker2)",
config->device);
if(dpdk->rx_to_worker_ring == NULL) {
return(PCAP_ERROR);
}
}
#endif
dpdk->config = *config;
if(config->type_worker_thread == _dpdk_twt_rte) {
int lcore_id = dpdk_tools->getFreeLcore(cDpdkTools::_tlc_worker, numa_node);
dpdk_eval_res(lcore_id, lcore_id < 0 ? "not available free lcore for worker thread" : NULL, 2, error,
"dpdk_activate(%s) - getFreeLcore(cDpdkTools::_tlc_worker)",
config->device);
if(lcore_id < 0) {
return(PCAP_ERROR);
} else {
ret = rte_eal_remote_launch(rte_worker_thread, dpdk, lcore_id);
string cores_info;
if(ret >= 0) {
cores_info = dpdk_tools->getCoresForLcore(lcore_id);
if(!cores_info.empty()) {
cores_info = "/" + cores_info;
}
}
dpdk_eval_res(ret, NULL, 2, error,
"dpdk_activate(%s) - rte_eal_remote_launch(%i%s) / worker",
config->device,
lcore_id,
cores_info.c_str());
if(ret < 0) {
return(PCAP_ERROR);
}
dpdk_tools->setUseLcore(lcore_id);
}
}
if(config->type_worker_thread == _dpdk_twt_rte &&
ENABLE_WORKER_SLAVE) {
int lcore_id = dpdk_tools->getFreeLcore(cDpdkTools::_tlc_worker, numa_node);
dpdk_eval_res(lcore_id, lcore_id < 0 ? "not available free lcore for worker slave thread" : NULL, 2, error,
"dpdk_activate(%s) - getFreeLcore(cDpdkTools::_tlc_worker)",
config->device);
if(lcore_id < 0) {
return(PCAP_ERROR);
} else {
ret = rte_eal_remote_launch(rte_worker_slave_thread, dpdk, lcore_id);
string cores_info;
if(ret >= 0) {
cores_info = dpdk_tools->getCoresForLcore(lcore_id);
if(!cores_info.empty()) {
cores_info = "/" + cores_info;
}
}
dpdk_eval_res(ret, NULL, 2, error,
"dpdk_activate(%s) - rte_eal_remote_launch(%i%s) / worker slave",
config->device,
lcore_id,
cores_info.c_str());
if(ret < 0) {
return(PCAP_ERROR);
}
dpdk_tools->setUseLcore(lcore_id);
}
}
#if WORKER2_THREAD_SUPPORT
if(config->type_worker2_thread == _dpdk_tw2t_rte) {
int lcore_id = dpdk->tools->getFreeLcore(cDpdkTools::_tlc_worker2, numa_node);
dpdk_eval_res(lcore_id, lcore_id < 0 ? "not available free lcore for worker2 thread" : NULL, 2, error,
"dpdk_activate(%s) - getFreeLcore(cDpdkTools::_tlc_worker2)",
config->device);
if(lcore_id < 0) {
return(PCAP_ERROR);
} else {
ret = rte_eal_remote_launch(rte_worker2_thread, dpdk, lcore_id);
string cores_info;
if(ret >= 0) {
cores_info = dpdk_tools->getCoresForLcore(lcore_id);
if(!cores_info.empty()) {
cores_info = "/" + cores_info;
}
}
dpdk_eval_res(ret, NULL, 2, error,
"dpdk_activate(%s) - rte_eal_remote_launch(%i%s) / worker 2",
config->device,
lcore_id,
cores_info.c_str());
if(ret < 0) {
return(PCAP_ERROR);
}
dpdk->tools->setUseLcore(lcore_id);
}
}
#endif
if(config->type_read_thread == _dpdk_trt_rte) {
int lcore_id = dpdk_tools->getFreeLcore(cDpdkTools::_tlc_read, numa_node);
dpdk_eval_res(lcore_id, lcore_id < 0 ? "not available free lcore for read thread" : NULL, 2, error,
"dpdk_activate(%s) - getFreeLcore(cDpdkTools::_tlc_read)",
config->device);
if(lcore_id < 0) {
return(PCAP_ERROR);
} else {
ret = rte_eal_remote_launch(rte_read_thread, dpdk, lcore_id);
string cores_info;
if(ret >= 0) {
cores_info = dpdk_tools->getCoresForLcore(lcore_id);
if(!cores_info.empty()) {
cores_info = "/" + cores_info;
}
}
dpdk_eval_res(ret, NULL, 2, error,
"dpdk_activate(%s) - rte_eal_remote_launch(%i%s) / read",
config->device,
lcore_id,
cores_info.c_str());
if(ret < 0) {
return(PCAP_ERROR);
}
dpdk_tools->setUseLcore(lcore_id);
}
}
if(opt_dpdk_mtu) {
ret = rte_eth_dev_set_mtu(portid, opt_dpdk_mtu);
dpdk_eval_res(ret, NULL, 2, error,
"dpdk_activate(%s) - rte_eth_dev_set_mtu",
config->device);
if(ret < 0) {
return(PCAP_ERROR);
}
}
// Start device
ret = rte_eth_dev_start(portid);
dpdk_eval_res(ret, NULL, 2, error,
"dpdk_activate(%s) - rte_eth_dev_start(%i)",
config->device,
portid);
if(ret < 0) {
return(PCAP_ERROR);
}
// set promiscuous mode
if(config->promisc) {
dpdk->must_clear_promisc=1;
rte_eth_promiscuous_enable(portid);
}
// check link status
for(int i = 0; i < (opt_dpdk_vdev.size() ? 2 : 1); i++) {
if(i == 1) {
if(opt_dpdk_vdev.size()) {
ret = rte_eth_dev_set_link_up(portid);
dpdk_eval_res(ret, NULL, 2, error,
"dpdk_activate(%s) - rte_eth_dev_set_link_up(%i)",
config->device,
portid);
} else {
break;
}
}
is_port_up = check_link_status(portid, &link);
dpdk_eval_res(is_port_up, is_port_up == 0 ? "link is down" : NULL, 2, error,
"dpdk_activate(%s) - check_link_status(%i)",
config->device,
portid);
if(is_port_up) {
break;
}
}
if(!is_port_up) {
return(PCAP_ERROR_IFACE_NOT_UP);
}
// reset statistics
dpdk_reset_statistics(dpdk, true);
/*
// format pcap_t
pd->portid = portid;
p->fd = pd->portid;
if(p->snapshot <=0 || p->snapshot> MAXIMUM_SNAPLEN)
{
p->snapshot = MAXIMUM_SNAPLEN;
}
p->linktype = DLT_EN10MB; // Ethernet, the 10MB is historical.
p->selectable_fd = p->fd;
p->read_op = pcap_dpdk_dispatch;
p->inject_op = pcap_dpdk_inject;
// using pcap_filter currently, though DPDK provides their own BPF function. Because DPDK BPF needs load a ELF file as a filter.
p->setfilter_op = install_bpf_program;
p->setdirection_op = NULL;
p->set_datalink_op = NULL;
p->getnonblock_op = pcap_dpdk_getnonblock;
p->setnonblock_op = pcap_dpdk_setnonblock;
p->stats_op = pcap_dpdk_stats;
p->cleanup_op = pcap_dpdk_close;
p->breakloop_op = pcap_breakloop_common;
// set default timeout
pd->required_select_timeout.tv_sec = 0;
pd->required_select_timeout.tv_usec = DPDK_DEF_MIN_SLEEP_MS*1000;
p->required_select_timeout = &pd->required_select_timeout;
*/
rte_eth_dev_get_name_by_port(portid,dpdk->pci_addr);
syslog(LOG_INFO, "DPDK - Port %d device: %s, MAC:%s, PCI:%s\n",
portid, config->device, dpdk->mac_addr, dpdk->pci_addr);
syslog(LOG_INFO, "DPDK - Port %d Link Up. Speed %u Mbps - %s\n",
portid, link.link_speed,
(link.link_duplex == RTE_ETH_LINK_FULL_DUPLEX) ? ("full-duplex") : ("half-duplex\n"));
return(0);
}
int dpdk_do_pre_init(std::string *error) {
return(dpdk_pre_init(error));
}
void dpdk_set_initialized(sDpdkHandle *dpdk) {
dpdk->initialized = true;
}
void dpdk_reset_statistics(sDpdkHandle *dpdk, bool flush_buffer) {
if(flush_buffer) {
u_int16_t nb_rx;
rte_mbuf *pkts_burst[MAX_PKT_BURST];
while((nb_rx = rte_eth_rx_burst(dpdk->portid, 0, pkts_burst, MAX_PKT_BURST)) > 0) {
for(u_int16_t i = 0; i < nb_rx; i++) {
rte_pktmbuf_free(pkts_burst[i]);
}
}
}
rte_eth_stats_reset(dpdk->portid);
dpdk->prev_ts_us = get_timestamp_us(dpdk);
rte_eth_stats_get(dpdk->portid, &(dpdk->prev_stats));
}
int dpdk_read_proc(sDpdk *dpdk) {
rte_mbuf *pkts_burst[MAX_PKT_BURST];
u_int64_t timestamp_us;
if(dpdk->rx_to_worker_ring) {
#if 0
while(true) {
u_int16_t nb_rx = rte_eth_rx_burst(dpdk->portid, 0, pkts_burst, MAX_PKT_BURST);
if(nb_rx > 0) {
for(u_int16_t i = 0; i < nb_rx; i++) {
rte_pktmbuf_free(pkts_burst[i]);
}
//printf(" * %i\n", nb_rx);
}
}
return(0);
#else
int nb_rx_sum = 0;
for(int i = 0; i < dpdk->config.iterations_per_call; i++) {
int nb_rx = (int)rte_eth_rx_burst(dpdk->portid, 0, pkts_burst, MAX_PKT_BURST);
if(likely(nb_rx)) {
#if DPDK_TIMESTAMP_IN_MBUF
timestamp_us = get_timestamp_us(dpdk);
for(u_int16_t i = 0; i < nb_rx; i++) {
#if DPDK_TIMESTAMP_IN_MBUF == 1
*RTE_MBUF_DYNFIELD(pkts_burst[i], timestamp_dynfield_offset, u_int64_t*) = timestamp_us;
#elif DPDK_TIMESTAMP_IN_MBUF == 2
*(u_int64_t*)&pkts_burst[i]->dynfield1[0] = timestamp_us;
#endif
}
#endif
u_int16_t nb_rx_enqueue = rte_ring_enqueue_burst(dpdk->rx_to_worker_ring, (void *const *)pkts_burst, nb_rx, NULL);
if(nb_rx_enqueue < nb_rx) {
for(u_int16_t i = nb_rx_enqueue; i < nb_rx; i++) {
rte_pktmbuf_free(pkts_burst[i]);
}
dpdk->ring_full_drop += nb_rx - nb_rx_enqueue;
}
nb_rx_sum += nb_rx;
} else if(dpdk->config.read_usleep_if_no_packet) {
if(dpdk->config.read_usleep_type == _dpdk_usleep_type_rte) {
rte_delay_us_block(dpdk->config.read_usleep_if_no_packet);
} else if(dpdk->config.read_usleep_type == _dpdk_usleep_type_rte_pause) {
rte_pause();
} else {
USLEEP(dpdk->config.read_usleep_if_no_packet);
}
}
}
return(nb_rx_sum);
#endif
} else {
int nb_rx = (int)rte_eth_rx_burst(dpdk->portid, 0, pkts_burst, MAX_PKT_BURST);
if(likely(nb_rx)) {
timestamp_us = get_timestamp_us(dpdk);
for(int i = 0; i < nb_rx; i++) {
dpdk_process_packet(dpdk, pkts_burst[i], timestamp_us);
}
}
return(nb_rx);
}
}
int dpdk_worker_proc(sDpdk *dpdk) {
#if DEBUG_CYCLES
dpdk->cycles[9].setBegin();
#endif
rte_mbuf *pkts_burst[MAX_PKT_BURST];
#if not DPDK_TIMESTAMP_IN_MBUF
u_int64_t timestamp_us;
#endif
int nb_rx = (int)rte_ring_dequeue_burst(dpdk->rx_to_worker_ring, (void**)pkts_burst, MAX_PKT_BURST, NULL);
if(likely(nb_rx)) {
#if not DPDK_TIMESTAMP_IN_MBUF
timestamp_us = get_timestamp_us(dpdk);
#endif
for(int i = 0; i < nb_rx; i++) {
dpdk_process_packet(dpdk, pkts_burst[i],
#if DPDK_TIMESTAMP_IN_MBUF == 1
*RTE_MBUF_DYNFIELD(pkts_burst[i], timestamp_dynfield_offset, u_int64_t*)
#elif DPDK_TIMESTAMP_IN_MBUF == 2
*(u_int64_t*)&pkts_burst[i]->dynfield1[0]
#else
timestamp_us
#endif
);
}
}
#if DEBUG_CYCLES
dpdk->cycles[9].setEnd();
#endif
return(nb_rx);
}
int pcap_dpdk_stats(sDpdk *dpdk, pcap_stat *ps, string *str_out) {
dpdk->curr_ts_us = get_timestamp_us(dpdk);
rte_eth_stats_get(dpdk->portid,&(dpdk->curr_stats));
if(ps) {
ps->ps_recv = dpdk->curr_stats.ipackets;
ps->ps_drop = dpdk->curr_stats.ierrors;
ps->ps_drop += dpdk->bpf_drop;
ps->ps_ifdrop = dpdk->curr_stats.imissed;
}
uint64_t delta_pkt = dpdk->curr_stats.ipackets - dpdk->prev_stats.ipackets;
uint64_t delta_usec = dpdk->curr_ts_us - dpdk->prev_ts_us;
uint64_t delta_bit = (dpdk->curr_stats.ibytes-dpdk->prev_stats.ibytes)*8;
dpdk->pps = (uint64_t)(delta_pkt*1e6f/delta_usec);
dpdk->bps = (uint64_t)(delta_bit*1e6f/delta_usec);
if(str_out) {
ostringstream outStr;
outStr << fixed
<< "DPDK "
<< dpdk->config.device
<< " portid " << dpdk->portid
<< " ["
<< setprecision(2) << dpdk->bps/1e6f << "Mb/s"
<< "; packets: " << (dpdk->curr_stats.ipackets - dpdk->last_stat_ipackets)
<< "; errors: " << (dpdk->curr_stats.ierrors - dpdk->last_stat_ierrors)
<< "; imissed: " << (dpdk->curr_stats.imissed - dpdk->last_stat_imissed)
<< "; nombuf: " << (dpdk->curr_stats.rx_nombuf - dpdk->last_stat_nombuf);
dpdk->last_stat_ipackets = dpdk->curr_stats.ipackets;
dpdk->last_stat_ierrors = dpdk->curr_stats.ierrors;
dpdk->last_stat_imissed = dpdk->curr_stats.imissed;
dpdk->last_stat_nombuf = dpdk->curr_stats.rx_nombuf;
#if LOG_PACKETS_SUM
if(dpdk->count_packets[0] > 0) {
outStr << "; packets_read: " << (dpdk->count_packets[0] - dpdk->last_stat_cout_packets[0]);
dpdk->last_stat_cout_packets[0] = dpdk->count_packets[0];
}
if(dpdk->count_packets[1] > 0) {
outStr << "; packets_worker: " << (dpdk->count_packets[1] - dpdk->last_stat_cout_packets[1]);
dpdk->last_stat_cout_packets[1] = dpdk->count_packets[1];
}
#endif
if(dpdk->rx_to_worker_ring) {
outStr << "; ring count: " << rte_ring_count(dpdk->rx_to_worker_ring);
outStr << "; ring full: " << (dpdk->ring_full_drop - dpdk->last_stat_ring_full_drop);
dpdk->last_stat_ring_full_drop = dpdk->ring_full_drop;
}
#if WORKER2_THREAD_SUPPORT
if(dpdk->worker_to_worker2_ring) {
outStr << "; ring2 count: " << rte_ring_count(dpdk->worker_to_worker2_ring);
outStr << "; ring2 full: " << (dpdk->ring2_full_drop - dpdk->last_stat_ring2_full_drop);
dpdk->last_stat_ring2_full_drop = dpdk->ring2_full_drop;
}
#endif
#if DEBUG_EXT_STAT
int len = rte_eth_xstats_get(dpdk->portid, NULL, 0);
if(len < 0) {
outStr << "; error: " << "rte_eth_xstats_get failed";
} else {
struct rte_eth_xstat *xstats = (rte_eth_xstat*)calloc(len, sizeof(*xstats));
if(xstats == NULL) {
outStr << "; error: " << "failed to calloc memory for xstats";
} else {
int ret = rte_eth_xstats_get(portid, xstats, len);
if(ret < 0 || ret > len) {
outStr << "; error: " << "rte_eth_xstats_get failed";
} else {
rte_eth_xstat_name *xstats_names = (rte_eth_xstat_name*)calloc(len, sizeof(*xstats_names));
if(xstats_names == NULL) {
outStr << "; error: " << "failed to calloc memory for xstats_names";
} else {
ret = rte_eth_xstats_get_names(portid, xstats_names, len);
if(ret < 0 || ret > len) {
outStr << "; error: " << "rte_eth_xstats_get_names failed";
} else {
for(int i = 0; i < len; i++) {
if(xstats[i].value > 0) {
outStr << "; " << xstats_names[i].name << ": " << xstats[i].value;
}
}
}
free(xstats_names);
}
}
free(xstats);
}
}
#endif
outStr << "]";
#if DEBUG_CYCLES
for(unsigned i = 0; i < sizeof(dpdk->cycles) / sizeof(dpdk->cycles[0]); i++) {
if(dpdk->cycles[i].count &&
(!DEBUG_CYCLES_MAX_LT_MS ||
dpdk->cycles[i].max * 1000000000 / dpdk->ts_helper.hz > DEBUG_CYCLES_MAX_LT_MS * 1000000ul)) {
outStr << " * C" << i
<< " " << dpdk->cycles[i].sum / dpdk->cycles[i].count * 1000000000 / dpdk->ts_helper.hz
<< " " << dpdk->cycles[i].min * 1000000000 / dpdk->ts_helper.hz
<< " " << dpdk->cycles[i].max * 1000000000 / dpdk->ts_helper.hz
<< endl;
}
dpdk->cycles[i].reset = true;
}
#endif
*str_out = outStr.str();
}
dpdk->prev_stats = dpdk->curr_stats;
dpdk->prev_ts_us = get_timestamp_us(dpdk);
return 0;
}
sDpdkConfig *dpdk_config(sDpdk *dpdk) {
return(&dpdk->config);
}
void dpdk_terminating(sDpdk *dpdk) {
dpdk->terminating = true;
}
double rte_read_thread_cpu_usage(sDpdk *dpdk) {
if(!dpdk->rte_read_thread_pid) {
return(-1);
}
if(dpdk->rte_read_thread_pstat_data[0].cpu_total_time) {
dpdk->rte_read_thread_pstat_data[1] = dpdk->rte_read_thread_pstat_data[0];
}
pstat_get_data(dpdk->rte_read_thread_pid, dpdk->rte_read_thread_pstat_data);
double ucpu_usage, scpu_usage;
if(dpdk->rte_read_thread_pstat_data[0].cpu_total_time && dpdk->rte_read_thread_pstat_data[1].cpu_total_time) {
pstat_calc_cpu_usage_pct(
&dpdk->rte_read_thread_pstat_data[0], &dpdk->rte_read_thread_pstat_data[1],
&ucpu_usage, &scpu_usage);
return(ucpu_usage + scpu_usage);
}
return(-1);
}
double rte_worker_thread_cpu_usage(sDpdk *dpdk) {
if(!dpdk->rte_worker_thread_pid) {
return(-1);
}
if(dpdk->rte_worker_thread_pstat_data[0].cpu_total_time) {
dpdk->rte_worker_thread_pstat_data[1] = dpdk->rte_worker_thread_pstat_data[0];
}
pstat_get_data(dpdk->rte_worker_thread_pid, dpdk->rte_worker_thread_pstat_data);
double ucpu_usage, scpu_usage;
if(dpdk->rte_worker_thread_pstat_data[0].cpu_total_time && dpdk->rte_worker_thread_pstat_data[1].cpu_total_time) {
pstat_calc_cpu_usage_pct(
&dpdk->rte_worker_thread_pstat_data[0], &dpdk->rte_worker_thread_pstat_data[1],
&ucpu_usage, &scpu_usage);