summaryrefslogtreecommitdiff
path: root/examples/l3fwd-power/main.c
blob: 68527d26f60cf3ab3267b509d460754b53b11602 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright(c) 2010-2018 Intel Corporation
 */

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <inttypes.h>
#include <sys/types.h>
#include <string.h>
#include <sys/queue.h>
#include <stdarg.h>
#include <errno.h>
#include <getopt.h>
#include <unistd.h>
#include <signal.h>

#include <rte_common.h>
#include <rte_byteorder.h>
#include <rte_log.h>
#include <rte_malloc.h>
#include <rte_memory.h>
#include <rte_memcpy.h>
#include <rte_eal.h>
#include <rte_launch.h>
#include <rte_atomic.h>
#include <rte_cycles.h>
#include <rte_prefetch.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_ip.h>
#include <rte_tcp.h>
#include <rte_udp.h>
#include <rte_string_fns.h>
#include <rte_timer.h>
#include <rte_power.h>
#include <rte_spinlock.h>

#include "perf_core.h"
#include "main.h"

#define RTE_LOGTYPE_L3FWD_POWER RTE_LOGTYPE_USER1

#define MAX_PKT_BURST 32

#define MIN_ZERO_POLL_COUNT 10

/* 100 ms interval */
#define TIMER_NUMBER_PER_SECOND           10
/* 100000 us */
#define SCALING_PERIOD                    (1000000/TIMER_NUMBER_PER_SECOND)
#define SCALING_DOWN_TIME_RATIO_THRESHOLD 0.25

#define APP_LOOKUP_EXACT_MATCH          0
#define APP_LOOKUP_LPM                  1
#define DO_RFC_1812_CHECKS

#ifndef APP_LOOKUP_METHOD
#define APP_LOOKUP_METHOD             APP_LOOKUP_LPM
#endif

#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
#include <rte_hash.h>
#elif (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
#include <rte_lpm.h>
#else
#error "APP_LOOKUP_METHOD set to incorrect value"
#endif

#ifndef IPv6_BYTES
#define IPv6_BYTES_FMT "%02x%02x:%02x%02x:%02x%02x:%02x%02x:"\
                       "%02x%02x:%02x%02x:%02x%02x:%02x%02x"
#define IPv6_BYTES(addr) \
	addr[0],  addr[1], addr[2],  addr[3], \
	addr[4],  addr[5], addr[6],  addr[7], \
	addr[8],  addr[9], addr[10], addr[11],\
	addr[12], addr[13],addr[14], addr[15]
#endif

#define MAX_JUMBO_PKT_LEN  9600

#define IPV6_ADDR_LEN 16

#define MEMPOOL_CACHE_SIZE 256

/*
 * This expression is used to calculate the number of mbufs needed depending on
 * user input, taking into account memory for rx and tx hardware rings, cache
 * per lcore and mtable per port per lcore. RTE_MAX is used to ensure that
 * NB_MBUF never goes below a minimum value of 8192.
 */

#define NB_MBUF RTE_MAX	( \
	(nb_ports*nb_rx_queue*nb_rxd + \
	nb_ports*nb_lcores*MAX_PKT_BURST + \
	nb_ports*n_tx_queue*nb_txd + \
	nb_lcores*MEMPOOL_CACHE_SIZE), \
	(unsigned)8192)

#define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */

#define NB_SOCKETS 8

/* Configure how many packets ahead to prefetch, when reading packets */
#define PREFETCH_OFFSET	3

/*
 * Configurable number of RX/TX ring descriptors
 */
#define RTE_TEST_RX_DESC_DEFAULT 1024
#define RTE_TEST_TX_DESC_DEFAULT 1024
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 ports_eth_addr[RTE_MAX_ETHPORTS];

/* ethernet addresses of ports */
static rte_spinlock_t locks[RTE_MAX_ETHPORTS];

/* mask of enabled ports */
static uint32_t enabled_port_mask = 0;
/* Ports set in promiscuous mode off by default. */
static int promiscuous_on = 0;
/* NUMA is enabled by default. */
static int numa_on = 1;
static int parse_ptype; /**< Parse packet type using rx callback, and */
			/**< disabled by default */

enum freq_scale_hint_t
{
	FREQ_LOWER    =      -1,
	FREQ_CURRENT  =       0,
	FREQ_HIGHER   =       1,
	FREQ_HIGHEST  =       2
};

struct lcore_rx_queue {
	uint16_t port_id;
	uint8_t queue_id;
	enum freq_scale_hint_t freq_up_hint;
	uint32_t zero_rx_packet_count;
	uint32_t idle_hint;
} __rte_cache_aligned;

#define MAX_RX_QUEUE_PER_LCORE 16
#define MAX_TX_QUEUE_PER_PORT RTE_MAX_ETHPORTS
#define MAX_RX_QUEUE_PER_PORT 128

#define MAX_RX_QUEUE_INTERRUPT_PER_PORT 16


struct lcore_params lcore_params_array[MAX_LCORE_PARAMS];
static struct lcore_params lcore_params_array_default[] = {
	{0, 0, 2},
	{0, 1, 2},
	{0, 2, 2},
	{1, 0, 2},
	{1, 1, 2},
	{1, 2, 2},
	{2, 0, 2},
	{3, 0, 3},
	{3, 1, 3},
};

struct lcore_params *lcore_params = lcore_params_array_default;
uint16_t nb_lcore_params = sizeof(lcore_params_array_default) /
				sizeof(lcore_params_array_default[0]);

static struct rte_eth_conf port_conf = {
	.rxmode = {
		.mq_mode        = ETH_MQ_RX_RSS,
		.max_rx_pkt_len = ETHER_MAX_LEN,
		.split_hdr_size = 0,
		.offloads = DEV_RX_OFFLOAD_CHECKSUM,
	},
	.rx_adv_conf = {
		.rss_conf = {
			.rss_key = NULL,
			.rss_hf = ETH_RSS_UDP,
		},
	},
	.txmode = {
		.mq_mode = ETH_MQ_TX_NONE,
	},
	.intr_conf = {
		.rxq = 1,
	},
};

static struct rte_mempool * pktmbuf_pool[NB_SOCKETS];


#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)

#ifdef RTE_ARCH_X86
#include <rte_hash_crc.h>
#define DEFAULT_HASH_FUNC       rte_hash_crc
#else
#include <rte_jhash.h>
#define DEFAULT_HASH_FUNC       rte_jhash
#endif

struct ipv4_5tuple {
	uint32_t ip_dst;
	uint32_t ip_src;
	uint16_t port_dst;
	uint16_t port_src;
	uint8_t  proto;
} __attribute__((__packed__));

struct ipv6_5tuple {
	uint8_t  ip_dst[IPV6_ADDR_LEN];
	uint8_t  ip_src[IPV6_ADDR_LEN];
	uint16_t port_dst;
	uint16_t port_src;
	uint8_t  proto;
} __attribute__((__packed__));

struct ipv4_l3fwd_route {
	struct ipv4_5tuple key;
	uint8_t if_out;
};

struct ipv6_l3fwd_route {
	struct ipv6_5tuple key;
	uint8_t if_out;
};

static struct ipv4_l3fwd_route ipv4_l3fwd_route_array[] = {
	{{IPv4(100,10,0,1), IPv4(200,10,0,1), 101, 11, IPPROTO_TCP}, 0},
	{{IPv4(100,20,0,2), IPv4(200,20,0,2), 102, 12, IPPROTO_TCP}, 1},
	{{IPv4(100,30,0,3), IPv4(200,30,0,3), 103, 13, IPPROTO_TCP}, 2},
	{{IPv4(100,40,0,4), IPv4(200,40,0,4), 104, 14, IPPROTO_TCP}, 3},
};

static struct ipv6_l3fwd_route ipv6_l3fwd_route_array[] = {
	{
		{
			{0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			 0x02, 0x1b, 0x21, 0xff, 0xfe, 0x91, 0x38, 0x05},
			{0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			 0x02, 0x1e, 0x67, 0xff, 0xfe, 0x0d, 0xb6, 0x0a},
			 1, 10, IPPROTO_UDP
		}, 4
	},
};

typedef struct rte_hash lookup_struct_t;
static lookup_struct_t *ipv4_l3fwd_lookup_struct[NB_SOCKETS];
static lookup_struct_t *ipv6_l3fwd_lookup_struct[NB_SOCKETS];

#define L3FWD_HASH_ENTRIES	1024

#define IPV4_L3FWD_NUM_ROUTES \
	(sizeof(ipv4_l3fwd_route_array) / sizeof(ipv4_l3fwd_route_array[0]))

#define IPV6_L3FWD_NUM_ROUTES \
	(sizeof(ipv6_l3fwd_route_array) / sizeof(ipv6_l3fwd_route_array[0]))

static uint16_t ipv4_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
static uint16_t ipv6_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
#endif

#if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
struct ipv4_l3fwd_route {
	uint32_t ip;
	uint8_t  depth;
	uint8_t  if_out;
};

static struct ipv4_l3fwd_route ipv4_l3fwd_route_array[] = {
	{IPv4(1,1,1,0), 24, 0},
	{IPv4(2,1,1,0), 24, 1},
	{IPv4(3,1,1,0), 24, 2},
	{IPv4(4,1,1,0), 24, 3},
	{IPv4(5,1,1,0), 24, 4},
	{IPv4(6,1,1,0), 24, 5},
	{IPv4(7,1,1,0), 24, 6},
	{IPv4(8,1,1,0), 24, 7},
};

#define IPV4_L3FWD_NUM_ROUTES \
	(sizeof(ipv4_l3fwd_route_array) / sizeof(ipv4_l3fwd_route_array[0]))

#define IPV4_L3FWD_LPM_MAX_RULES     1024

typedef struct rte_lpm lookup_struct_t;
static lookup_struct_t *ipv4_l3fwd_lookup_struct[NB_SOCKETS];
#endif

struct lcore_conf {
	uint16_t n_rx_queue;
	struct lcore_rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
	uint16_t n_tx_port;
	uint16_t tx_port_id[RTE_MAX_ETHPORTS];
	uint16_t tx_queue_id[RTE_MAX_ETHPORTS];
	struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
	lookup_struct_t * ipv4_lookup_struct;
	lookup_struct_t * ipv6_lookup_struct;
} __rte_cache_aligned;

struct lcore_stats {
	/* total sleep time in ms since last frequency scaling down */
	uint32_t sleep_time;
	/* number of long sleep recently */
	uint32_t nb_long_sleep;
	/* freq. scaling up trend */
	uint32_t trend;
	/* total packet processed recently */
	uint64_t nb_rx_processed;
	/* total iterations looped recently */
	uint64_t nb_iteration_looped;
	uint32_t padding[9];
} __rte_cache_aligned;

static struct lcore_conf lcore_conf[RTE_MAX_LCORE] __rte_cache_aligned;
static struct lcore_stats stats[RTE_MAX_LCORE] __rte_cache_aligned;
static struct rte_timer power_timers[RTE_MAX_LCORE];

static inline uint32_t power_idle_heuristic(uint32_t zero_rx_packet_count);
static inline enum freq_scale_hint_t power_freq_scaleup_heuristic( \
		unsigned int lcore_id, uint16_t port_id, uint16_t queue_id);

/* exit signal handler */
static void
signal_exit_now(int sigtype)
{
	unsigned lcore_id;
	unsigned int portid;
	int ret;

	if (sigtype == SIGINT) {
		for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
			if (rte_lcore_is_enabled(lcore_id) == 0)
				continue;

			/* init power management library */
			ret = rte_power_exit(lcore_id);
			if (ret)
				rte_exit(EXIT_FAILURE, "Power management "
					"library de-initialization failed on "
							"core%u\n", lcore_id);
		}

		RTE_ETH_FOREACH_DEV(portid) {
			if ((enabled_port_mask & (1 << portid)) == 0)
				continue;

			rte_eth_dev_stop(portid);
			rte_eth_dev_close(portid);
		}
	}

	rte_exit(EXIT_SUCCESS, "User forced exit\n");
}

/*  Freqency scale down timer callback */
static void
power_timer_cb(__attribute__((unused)) struct rte_timer *tim,
			  __attribute__((unused)) void *arg)
{
	uint64_t hz;
	float sleep_time_ratio;
	unsigned lcore_id = rte_lcore_id();

	/* accumulate total execution time in us when callback is invoked */
	sleep_time_ratio = (float)(stats[lcore_id].sleep_time) /
					(float)SCALING_PERIOD;
	/**
	 * check whether need to scale down frequency a step if it sleep a lot.
	 */
	if (sleep_time_ratio >= SCALING_DOWN_TIME_RATIO_THRESHOLD) {
		if (rte_power_freq_down)
			rte_power_freq_down(lcore_id);
	}
	else if ( (unsigned)(stats[lcore_id].nb_rx_processed /
		stats[lcore_id].nb_iteration_looped) < MAX_PKT_BURST) {
		/**
		 * scale down a step if average packet per iteration less
		 * than expectation.
		 */
		if (rte_power_freq_down)
			rte_power_freq_down(lcore_id);
	}

	/**
	 * initialize another timer according to current frequency to ensure
	 * timer interval is relatively fixed.
	 */
	hz = rte_get_timer_hz();
	rte_timer_reset(&power_timers[lcore_id], hz/TIMER_NUMBER_PER_SECOND,
				SINGLE, lcore_id, power_timer_cb, NULL);

	stats[lcore_id].nb_rx_processed = 0;
	stats[lcore_id].nb_iteration_looped = 0;

	stats[lcore_id].sleep_time = 0;
}

/* Enqueue a single packet, and send burst if queue is filled */
static inline int
send_single_packet(struct rte_mbuf *m, uint16_t port)
{
	uint32_t lcore_id;
	struct lcore_conf *qconf;

	lcore_id = rte_lcore_id();
	qconf = &lcore_conf[lcore_id];

	rte_eth_tx_buffer(port, qconf->tx_queue_id[port],
			qconf->tx_buffer[port], m);

	return 0;
}

#ifdef DO_RFC_1812_CHECKS
static inline int
is_valid_ipv4_pkt(struct ipv4_hdr *pkt, uint32_t link_len)
{
	/* From http://www.rfc-editor.org/rfc/rfc1812.txt section 5.2.2 */
	/*
	 * 1. The packet length reported by the Link Layer must be large
	 * enough to hold the minimum length legal IP datagram (20 bytes).
	 */
	if (link_len < sizeof(struct ipv4_hdr))
		return -1;

	/* 2. The IP checksum must be correct. */
	/* this is checked in H/W */

	/*
	 * 3. The IP version number must be 4. If the version number is not 4
	 * then the packet may be another version of IP, such as IPng or
	 * ST-II.
	 */
	if (((pkt->version_ihl) >> 4) != 4)
		return -3;
	/*
	 * 4. The IP header length field must be large enough to hold the
	 * minimum length legal IP datagram (20 bytes = 5 words).
	 */
	if ((pkt->version_ihl & 0xf) < 5)
		return -4;

	/*
	 * 5. The IP total length field must be large enough to hold the IP
	 * datagram header, whose length is specified in the IP header length
	 * field.
	 */
	if (rte_cpu_to_be_16(pkt->total_length) < sizeof(struct ipv4_hdr))
		return -5;

	return 0;
}
#endif

#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
static void
print_ipv4_key(struct ipv4_5tuple key)
{
	printf("IP dst = %08x, IP src = %08x, port dst = %d, port src = %d, "
		"proto = %d\n", (unsigned)key.ip_dst, (unsigned)key.ip_src,
				key.port_dst, key.port_src, key.proto);
}
static void
print_ipv6_key(struct ipv6_5tuple key)
{
	printf( "IP dst = " IPv6_BYTES_FMT ", IP src = " IPv6_BYTES_FMT ", "
	        "port dst = %d, port src = %d, proto = %d\n",
	        IPv6_BYTES(key.ip_dst), IPv6_BYTES(key.ip_src),
	        key.port_dst, key.port_src, key.proto);
}

static inline uint16_t
get_ipv4_dst_port(struct ipv4_hdr *ipv4_hdr, uint16_t portid,
		lookup_struct_t * ipv4_l3fwd_lookup_struct)
{
	struct ipv4_5tuple key;
	struct tcp_hdr *tcp;
	struct udp_hdr *udp;
	int ret = 0;

	key.ip_dst = rte_be_to_cpu_32(ipv4_hdr->dst_addr);
	key.ip_src = rte_be_to_cpu_32(ipv4_hdr->src_addr);
	key.proto = ipv4_hdr->next_proto_id;

	switch (ipv4_hdr->next_proto_id) {
	case IPPROTO_TCP:
		tcp = (struct tcp_hdr *)((unsigned char *)ipv4_hdr +
					sizeof(struct ipv4_hdr));
		key.port_dst = rte_be_to_cpu_16(tcp->dst_port);
		key.port_src = rte_be_to_cpu_16(tcp->src_port);
		break;

	case IPPROTO_UDP:
		udp = (struct udp_hdr *)((unsigned char *)ipv4_hdr +
					sizeof(struct ipv4_hdr));
		key.port_dst = rte_be_to_cpu_16(udp->dst_port);
		key.port_src = rte_be_to_cpu_16(udp->src_port);
		break;

	default:
		key.port_dst = 0;
		key.port_src = 0;
		break;
	}

	/* Find destination port */
	ret = rte_hash_lookup(ipv4_l3fwd_lookup_struct, (const void *)&key);
	return ((ret < 0) ? portid : ipv4_l3fwd_out_if[ret]);
}

static inline uint16_t
get_ipv6_dst_port(struct ipv6_hdr *ipv6_hdr, uint16_t portid,
			lookup_struct_t *ipv6_l3fwd_lookup_struct)
{
	struct ipv6_5tuple key;
	struct tcp_hdr *tcp;
	struct udp_hdr *udp;
	int ret = 0;

	memcpy(key.ip_dst, ipv6_hdr->dst_addr, IPV6_ADDR_LEN);
	memcpy(key.ip_src, ipv6_hdr->src_addr, IPV6_ADDR_LEN);

	key.proto = ipv6_hdr->proto;

	switch (ipv6_hdr->proto) {
	case IPPROTO_TCP:
		tcp = (struct tcp_hdr *)((unsigned char *) ipv6_hdr +
					sizeof(struct ipv6_hdr));
		key.port_dst = rte_be_to_cpu_16(tcp->dst_port);
		key.port_src = rte_be_to_cpu_16(tcp->src_port);
		break;

	case IPPROTO_UDP:
		udp = (struct udp_hdr *)((unsigned char *) ipv6_hdr +
					sizeof(struct ipv6_hdr));
		key.port_dst = rte_be_to_cpu_16(udp->dst_port);
		key.port_src = rte_be_to_cpu_16(udp->src_port);
		break;

	default:
		key.port_dst = 0;
		key.port_src = 0;
		break;
	}

	/* Find destination port */
	ret = rte_hash_lookup(ipv6_l3fwd_lookup_struct, (const void *)&key);
	return ((ret < 0) ? portid : ipv6_l3fwd_out_if[ret]);
}
#endif

#if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
static inline uint16_t
get_ipv4_dst_port(struct ipv4_hdr *ipv4_hdr, uint16_t portid,
		lookup_struct_t *ipv4_l3fwd_lookup_struct)
{
	uint32_t next_hop;

	return ((rte_lpm_lookup(ipv4_l3fwd_lookup_struct,
			rte_be_to_cpu_32(ipv4_hdr->dst_addr), &next_hop) == 0)?
			next_hop : portid);
}
#endif

static inline void
parse_ptype_one(struct rte_mbuf *m)
{
	struct ether_hdr *eth_hdr;
	uint32_t packet_type = RTE_PTYPE_UNKNOWN;
	uint16_t ether_type;

	eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);
	ether_type = eth_hdr->ether_type;
	if (ether_type == rte_cpu_to_be_16(ETHER_TYPE_IPv4))
		packet_type |= RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
	else if (ether_type == rte_cpu_to_be_16(ETHER_TYPE_IPv6))
		packet_type |= RTE_PTYPE_L3_IPV6_EXT_UNKNOWN;

	m->packet_type = packet_type;
}

static uint16_t
cb_parse_ptype(uint16_t port __rte_unused, uint16_t queue __rte_unused,
	       struct rte_mbuf *pkts[], uint16_t nb_pkts,
	       uint16_t max_pkts __rte_unused,
	       void *user_param __rte_unused)
{
	unsigned int i;

	for (i = 0; i < nb_pkts; ++i)
		parse_ptype_one(pkts[i]);

	return nb_pkts;
}

static int
add_cb_parse_ptype(uint16_t portid, uint16_t queueid)
{
	printf("Port %d: softly parse packet type info\n", portid);
	if (rte_eth_add_rx_callback(portid, queueid, cb_parse_ptype, NULL))
		return 0;

	printf("Failed to add rx callback: port=%d\n", portid);
	return -1;
}

static inline void
l3fwd_simple_forward(struct rte_mbuf *m, uint16_t portid,
				struct lcore_conf *qconf)
{
	struct ether_hdr *eth_hdr;
	struct ipv4_hdr *ipv4_hdr;
	void *d_addr_bytes;
	uint16_t dst_port;

	eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);

	if (RTE_ETH_IS_IPV4_HDR(m->packet_type)) {
		/* Handle IPv4 headers.*/
		ipv4_hdr =
			rte_pktmbuf_mtod_offset(m, struct ipv4_hdr *,
						sizeof(struct ether_hdr));

#ifdef DO_RFC_1812_CHECKS
		/* Check to make sure the packet is valid (RFC1812) */
		if (is_valid_ipv4_pkt(ipv4_hdr, m->pkt_len) < 0) {
			rte_pktmbuf_free(m);
			return;
		}
#endif

		dst_port = get_ipv4_dst_port(ipv4_hdr, portid,
					qconf->ipv4_lookup_struct);
		if (dst_port >= RTE_MAX_ETHPORTS ||
				(enabled_port_mask & 1 << dst_port) == 0)
			dst_port = portid;

		/* 02:00:00:00:00:xx */
		d_addr_bytes = &eth_hdr->d_addr.addr_bytes[0];
		*((uint64_t *)d_addr_bytes) =
			0x000000000002 + ((uint64_t)dst_port << 40);

#ifdef DO_RFC_1812_CHECKS
		/* Update time to live and header checksum */
		--(ipv4_hdr->time_to_live);
		++(ipv4_hdr->hdr_checksum);
#endif

		/* src addr */
		ether_addr_copy(&ports_eth_addr[dst_port], &eth_hdr->s_addr);

		send_single_packet(m, dst_port);
	} else if (RTE_ETH_IS_IPV6_HDR(m->packet_type)) {
		/* Handle IPv6 headers.*/
#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
		struct ipv6_hdr *ipv6_hdr;

		ipv6_hdr =
			rte_pktmbuf_mtod_offset(m, struct ipv6_hdr *,
						sizeof(struct ether_hdr));

		dst_port = get_ipv6_dst_port(ipv6_hdr, portid,
					qconf->ipv6_lookup_struct);

		if (dst_port >= RTE_MAX_ETHPORTS ||
				(enabled_port_mask & 1 << dst_port) == 0)
			dst_port = portid;

		/* 02:00:00:00:00:xx */
		d_addr_bytes = &eth_hdr->d_addr.addr_bytes[0];
		*((uint64_t *)d_addr_bytes) =
			0x000000000002 + ((uint64_t)dst_port << 40);

		/* src addr */
		ether_addr_copy(&ports_eth_addr[dst_port], &eth_hdr->s_addr);

		send_single_packet(m, dst_port);
#else
		/* We don't currently handle IPv6 packets in LPM mode. */
		rte_pktmbuf_free(m);
#endif
	} else
		rte_pktmbuf_free(m);

}

#define MINIMUM_SLEEP_TIME         1
#define SUSPEND_THRESHOLD          300

static inline uint32_t
power_idle_heuristic(uint32_t zero_rx_packet_count)
{
	/* If zero count is less than 100,  sleep 1us */
	if (zero_rx_packet_count < SUSPEND_THRESHOLD)
		return MINIMUM_SLEEP_TIME;
	/* If zero count is less than 1000, sleep 100 us which is the
		minimum latency switching from C3/C6 to C0
	*/
	else
		return SUSPEND_THRESHOLD;
}

static inline enum freq_scale_hint_t
power_freq_scaleup_heuristic(unsigned lcore_id,
			     uint16_t port_id,
			     uint16_t queue_id)
{
	uint32_t rxq_count = rte_eth_rx_queue_count(port_id, queue_id);
/**
 * HW Rx queue size is 128 by default, Rx burst read at maximum 32 entries
 * per iteration
 */
#define FREQ_GEAR1_RX_PACKET_THRESHOLD             MAX_PKT_BURST
#define FREQ_GEAR2_RX_PACKET_THRESHOLD             (MAX_PKT_BURST*2)
#define FREQ_GEAR3_RX_PACKET_THRESHOLD             (MAX_PKT_BURST*3)
#define FREQ_UP_TREND1_ACC   1
#define FREQ_UP_TREND2_ACC   100
#define FREQ_UP_THRESHOLD    10000

	if (likely(rxq_count > FREQ_GEAR3_RX_PACKET_THRESHOLD)) {
		stats[lcore_id].trend = 0;
		return FREQ_HIGHEST;
	} else if (likely(rxq_count > FREQ_GEAR2_RX_PACKET_THRESHOLD))
		stats[lcore_id].trend += FREQ_UP_TREND2_ACC;
	else if (likely(rxq_count > FREQ_GEAR1_RX_PACKET_THRESHOLD))
		stats[lcore_id].trend += FREQ_UP_TREND1_ACC;

	if (likely(stats[lcore_id].trend > FREQ_UP_THRESHOLD)) {
		stats[lcore_id].trend = 0;
		return FREQ_HIGHER;
	}

	return FREQ_CURRENT;
}

/**
 * force polling thread sleep until one-shot rx interrupt triggers
 * @param port_id
 *  Port id.
 * @param queue_id
 *  Rx queue id.
 * @return
 *  0 on success
 */
static int
sleep_until_rx_interrupt(int num)
{
	struct rte_epoll_event event[num];
	int n, i;
	uint16_t port_id;
	uint8_t queue_id;
	void *data;

	RTE_LOG(INFO, L3FWD_POWER,
		"lcore %u sleeps until interrupt triggers\n",
		rte_lcore_id());

	n = rte_epoll_wait(RTE_EPOLL_PER_THREAD, event, num, -1);
	for (i = 0; i < n; i++) {
		data = event[i].epdata.data;
		port_id = ((uintptr_t)data) >> CHAR_BIT;
		queue_id = ((uintptr_t)data) &
			RTE_LEN2MASK(CHAR_BIT, uint8_t);
		rte_eth_dev_rx_intr_disable(port_id, queue_id);
		RTE_LOG(INFO, L3FWD_POWER,
			"lcore %u is waked up from rx interrupt on"
			" port %d queue %d\n",
			rte_lcore_id(), port_id, queue_id);
	}

	return 0;
}

static void turn_on_intr(struct lcore_conf *qconf)
{
	int i;
	struct lcore_rx_queue *rx_queue;
	uint8_t queue_id;
	uint16_t port_id;

	for (i = 0; i < qconf->n_rx_queue; ++i) {
		rx_queue = &(qconf->rx_queue_list[i]);
		port_id = rx_queue->port_id;
		queue_id = rx_queue->queue_id;

		rte_spinlock_lock(&(locks[port_id]));
		rte_eth_dev_rx_intr_enable(port_id, queue_id);
		rte_spinlock_unlock(&(locks[port_id]));
	}
}

static int event_register(struct lcore_conf *qconf)
{
	struct lcore_rx_queue *rx_queue;
	uint8_t queueid;
	uint16_t portid;
	uint32_t data;
	int ret;
	int i;

	for (i = 0; i < qconf->n_rx_queue; ++i) {
		rx_queue = &(qconf->rx_queue_list[i]);
		portid = rx_queue->port_id;
		queueid = rx_queue->queue_id;
		data = portid << CHAR_BIT | queueid;

		ret = rte_eth_dev_rx_intr_ctl_q(portid, queueid,
						RTE_EPOLL_PER_THREAD,
						RTE_INTR_EVENT_ADD,
						(void *)((uintptr_t)data));
		if (ret)
			return ret;
	}

	return 0;
}

/* main processing loop */
static int
main_loop(__attribute__((unused)) void *dummy)
{
	struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
	unsigned lcore_id;
	uint64_t prev_tsc, diff_tsc, cur_tsc, tim_res_tsc, hz;
	uint64_t prev_tsc_power = 0, cur_tsc_power, diff_tsc_power;
	int i, j, nb_rx;
	uint8_t queueid;
	uint16_t portid;
	struct lcore_conf *qconf;
	struct lcore_rx_queue *rx_queue;
	enum freq_scale_hint_t lcore_scaleup_hint;
	uint32_t lcore_rx_idle_count = 0;
	uint32_t lcore_idle_hint = 0;
	int intr_en = 0;

	const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US;

	prev_tsc = 0;
	hz = rte_get_timer_hz();
	tim_res_tsc = hz/TIMER_NUMBER_PER_SECOND;

	lcore_id = rte_lcore_id();
	qconf = &lcore_conf[lcore_id];

	if (qconf->n_rx_queue == 0) {
		RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n", lcore_id);
		return 0;
	}

	RTE_LOG(INFO, L3FWD_POWER, "entering main loop on lcore %u\n", lcore_id);

	for (i = 0; i < qconf->n_rx_queue; i++) {
		portid = qconf->rx_queue_list[i].port_id;
		queueid = qconf->rx_queue_list[i].queue_id;
		RTE_LOG(INFO, L3FWD_POWER, " -- lcoreid=%u portid=%u "
			"rxqueueid=%hhu\n", lcore_id, portid, queueid);
	}

	/* add into event wait list */
	if (event_register(qconf) == 0)
		intr_en = 1;
	else
		RTE_LOG(INFO, L3FWD_POWER, "RX interrupt won't enable.\n");

	while (1) {
		stats[lcore_id].nb_iteration_looped++;

		cur_tsc = rte_rdtsc();
		cur_tsc_power = cur_tsc;

		/*
		 * TX burst queue drain
		 */
		diff_tsc = cur_tsc - prev_tsc;
		if (unlikely(diff_tsc > drain_tsc)) {
			for (i = 0; i < qconf->n_tx_port; ++i) {
				portid = qconf->tx_port_id[i];
				rte_eth_tx_buffer_flush(portid,
						qconf->tx_queue_id[portid],
						qconf->tx_buffer[portid]);
			}
			prev_tsc = cur_tsc;
		}

		diff_tsc_power = cur_tsc_power - prev_tsc_power;
		if (diff_tsc_power > tim_res_tsc) {
			rte_timer_manage();
			prev_tsc_power = cur_tsc_power;
		}

start_rx:
		/*
		 * Read packet from RX queues
		 */
		lcore_scaleup_hint = FREQ_CURRENT;
		lcore_rx_idle_count = 0;
		for (i = 0; i < qconf->n_rx_queue; ++i) {
			rx_queue = &(qconf->rx_queue_list[i]);
			rx_queue->idle_hint = 0;
			portid = rx_queue->port_id;
			queueid = rx_queue->queue_id;

			nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
								MAX_PKT_BURST);

			stats[lcore_id].nb_rx_processed += nb_rx;
			if (unlikely(nb_rx == 0)) {
				/**
				 * no packet received from rx queue, try to
				 * sleep for a while forcing CPU enter deeper
				 * C states.
				 */
				rx_queue->zero_rx_packet_count++;

				if (rx_queue->zero_rx_packet_count <=
							MIN_ZERO_POLL_COUNT)
					continue;

				rx_queue->idle_hint = power_idle_heuristic(\
					rx_queue->zero_rx_packet_count);
				lcore_rx_idle_count++;
			} else {
				rx_queue->zero_rx_packet_count = 0;

				/**
				 * do not scale up frequency immediately as
				 * user to kernel space communication is costly
				 * which might impact packet I/O for received
				 * packets.
				 */
				rx_queue->freq_up_hint =
					power_freq_scaleup_heuristic(lcore_id,
							portid, queueid);
			}

			/* Prefetch first packets */
			for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
				rte_prefetch0(rte_pktmbuf_mtod(
						pkts_burst[j], void *));
			}

			/* Prefetch and forward already prefetched packets */
			for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
				rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
						j + PREFETCH_OFFSET], void *));
				l3fwd_simple_forward(pkts_burst[j], portid,
								qconf);
			}

			/* Forward remaining prefetched packets */
			for (; j < nb_rx; j++) {
				l3fwd_simple_forward(pkts_burst[j], portid,
								qconf);
			}
		}

		if (likely(lcore_rx_idle_count != qconf->n_rx_queue)) {
			for (i = 1, lcore_scaleup_hint =
				qconf->rx_queue_list[0].freq_up_hint;
					i < qconf->n_rx_queue; ++i) {
				rx_queue = &(qconf->rx_queue_list[i]);
				if (rx_queue->freq_up_hint >
						lcore_scaleup_hint)
					lcore_scaleup_hint =
						rx_queue->freq_up_hint;
			}

			if (lcore_scaleup_hint == FREQ_HIGHEST) {
				if (rte_power_freq_max)
					rte_power_freq_max(lcore_id);
			} else if (lcore_scaleup_hint == FREQ_HIGHER) {
				if (rte_power_freq_up)
					rte_power_freq_up(lcore_id);
			}
		} else {
			/**
			 * All Rx queues empty in recent consecutive polls,
			 * sleep in a conservative manner, meaning sleep as
			 * less as possible.
			 */
			for (i = 1, lcore_idle_hint =
				qconf->rx_queue_list[0].idle_hint;
					i < qconf->n_rx_queue; ++i) {
				rx_queue = &(qconf->rx_queue_list[i]);
				if (rx_queue->idle_hint < lcore_idle_hint)
					lcore_idle_hint = rx_queue->idle_hint;
			}

			if (lcore_idle_hint < SUSPEND_THRESHOLD)
				/**
				 * execute "pause" instruction to avoid context
				 * switch which generally take hundred of
				 * microseconds for short sleep.
				 */
				rte_delay_us(lcore_idle_hint);
			else {
				/* suspend until rx interrupt trigges */
				if (intr_en) {
					turn_on_intr(qconf);
					sleep_until_rx_interrupt(
						qconf->n_rx_queue);
					/**
					 * start receiving packets immediately
					 */
					goto start_rx;
				}
			}
			stats[lcore_id].sleep_time += lcore_idle_hint;
		}
	}
}

static int
check_lcore_params(void)
{
	uint8_t queue, lcore;
	uint16_t i;
	int socketid;

	for (i = 0; i < nb_lcore_params; ++i) {
		queue = lcore_params[i].queue_id;
		if (queue >= MAX_RX_QUEUE_PER_PORT) {
			printf("invalid queue number: %hhu\n", queue);
			return -1;
		}
		lcore = lcore_params[i].lcore_id;
		if (!rte_lcore_is_enabled(lcore)) {
			printf("error: lcore %hhu is not enabled in lcore "
							"mask\n", lcore);
			return -1;
		}
		if ((socketid = rte_lcore_to_socket_id(lcore) != 0) &&
							(numa_on == 0)) {
			printf("warning: lcore %hhu is on socket %d with numa "
						"off\n", lcore, socketid);
		}
	}
	return 0;
}

static int
check_port_config(void)
{
	unsigned portid;
	uint16_t i;

	for (i = 0; i < nb_lcore_params; ++i) {
		portid = lcore_params[i].port_id;
		if ((enabled_port_mask & (1 << portid)) == 0) {
			printf("port %u is not enabled in port mask\n",
								portid);
			return -1;
		}
		if (!rte_eth_dev_is_valid_port(portid)) {
			printf("port %u is not present on the board\n",
								portid);
			return -1;
		}
	}
	return 0;
}

static uint8_t
get_port_n_rx_queues(const uint16_t port)
{
	int queue = -1;
	uint16_t i;

	for (i = 0; i < nb_lcore_params; ++i) {
		if (lcore_params[i].port_id == port &&
				lcore_params[i].queue_id > queue)
			queue = lcore_params[i].queue_id;
	}
	return (uint8_t)(++queue);
}

static int
init_lcore_rx_queues(void)
{
	uint16_t i, nb_rx_queue;
	uint8_t lcore;

	for (i = 0; i < nb_lcore_params; ++i) {
		lcore = lcore_params[i].lcore_id;
		nb_rx_queue = lcore_conf[lcore].n_rx_queue;
		if (nb_rx_queue >= MAX_RX_QUEUE_PER_LCORE) {
			printf("error: too many queues (%u) for lcore: %u\n",
				(unsigned)nb_rx_queue + 1, (unsigned)lcore);
			return -1;
		} else {
			lcore_conf[lcore].rx_queue_list[nb_rx_queue].port_id =
				lcore_params[i].port_id;
			lcore_conf[lcore].rx_queue_list[nb_rx_queue].queue_id =
				lcore_params[i].queue_id;
			lcore_conf[lcore].n_rx_queue++;
		}
	}
	return 0;
}

/* display usage */
static void
print_usage(const char *prgname)
{
	printf ("%s [EAL options] -- -p PORTMASK -P"
		"  [--config (port,queue,lcore)[,(port,queue,lcore]]"
		"  [--high-perf-cores CORELIST"
		"  [--perf-config (port,queue,hi_perf,lcore_index)[,(port,queue,hi_perf,lcore_index]]"
		"  [--enable-jumbo [--max-pkt-len PKTLEN]]\n"
		"  -p PORTMASK: hexadecimal bitmask of ports to configure\n"
		"  -P : enable promiscuous mode\n"
		"  --config (port,queue,lcore): rx queues configuration\n"
		"  --high-perf-cores CORELIST: list of high performance cores\n"
		"  --perf-config: similar as config, cores specified as indices"
		" for bins containing high or regular performance cores\n"
		"  --no-numa: optional, disable numa awareness\n"
		"  --enable-jumbo: enable jumbo frame"
		" which max packet len is PKTLEN in decimal (64-9600)\n"
		"  --parse-ptype: parse packet type by software\n",
		prgname);
}

static int parse_max_pkt_len(const char *pktlen)
{
	char *end = NULL;
	unsigned long len;

	/* parse decimal string */
	len = strtoul(pktlen, &end, 10);
	if ((pktlen[0] == '\0') || (end == NULL) || (*end != '\0'))
		return -1;

	if (len == 0)
		return -1;

	return len;
}

static int
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 int
parse_config(const char *q_arg)
{
	char s[256];
	const char *p, *p0 = q_arg;
	char *end;
	enum fieldnames {
		FLD_PORT = 0,
		FLD_QUEUE,
		FLD_LCORE,
		_NUM_FLD
	};
	unsigned long int_fld[_NUM_FLD];
	char *str_fld[_NUM_FLD];
	int i;
	unsigned size;

	nb_lcore_params = 0;

	while ((p = strchr(p0,'(')) != NULL) {
		++p;
		if((p0 = strchr(p,')')) == NULL)
			return -1;

		size = p0 - p;
		if(size >= sizeof(s))
			return -1;

		snprintf(s, sizeof(s), "%.*s", size, p);
		if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') !=
								_NUM_FLD)
			return -1;
		for (i = 0; i < _NUM_FLD; i++){
			errno = 0;
			int_fld[i] = strtoul(str_fld[i], &end, 0);
			if (errno != 0 || end == str_fld[i] || int_fld[i] >
									255)
				return -1;
		}
		if (nb_lcore_params >= MAX_LCORE_PARAMS) {
			printf("exceeded max number of lcore params: %hu\n",
				nb_lcore_params);
			return -1;
		}
		lcore_params_array[nb_lcore_params].port_id =
				(uint8_t)int_fld[FLD_PORT];
		lcore_params_array[nb_lcore_params].queue_id =
				(uint8_t)int_fld[FLD_QUEUE];
		lcore_params_array[nb_lcore_params].lcore_id =
				(uint8_t)int_fld[FLD_LCORE];
		++nb_lcore_params;
	}
	lcore_params = lcore_params_array;

	return 0;
}

#define CMD_LINE_OPT_PARSE_PTYPE "parse-ptype"

/* Parse the argument given in the command line of the application */
static int
parse_args(int argc, char **argv)
{
	int opt, ret;
	char **argvopt;
	int option_index;
	char *prgname = argv[0];
	static struct option lgopts[] = {
		{"config", 1, 0, 0},
		{"perf-config", 1, 0, 0},
		{"high-perf-cores", 1, 0, 0},
		{"no-numa", 0, 0, 0},
		{"enable-jumbo", 0, 0, 0},
		{CMD_LINE_OPT_PARSE_PTYPE, 0, 0, 0},
		{NULL, 0, 0, 0}
	};

	argvopt = argv;

	while ((opt = getopt_long(argc, argvopt, "p:P",
				lgopts, &option_index)) != EOF) {

		switch (opt) {
		/* portmask */
		case 'p':
			enabled_port_mask = parse_portmask(optarg);
			if (enabled_port_mask == 0) {
				printf("invalid portmask\n");
				print_usage(prgname);
				return -1;
			}
			break;
		case 'P':
			printf("Promiscuous mode selected\n");
			promiscuous_on = 1;
			break;

		/* long options */
		case 0:
			if (!strncmp(lgopts[option_index].name, "config", 6)) {
				ret = parse_config(optarg);
				if (ret) {
					printf("invalid config\n");
					print_usage(prgname);
					return -1;
				}
			}

			if (!strncmp(lgopts[option_index].name,
					"perf-config", 11)) {
				ret = parse_perf_config(optarg);
				if (ret) {
					printf("invalid perf-config\n");
					print_usage(prgname);
					return -1;
				}
			}

			if (!strncmp(lgopts[option_index].name,
					"high-perf-cores", 15)) {
				ret = parse_perf_core_list(optarg);
				if (ret) {
					printf("invalid high-perf-cores\n");
					print_usage(prgname);
					return -1;
				}
			}

			if (!strncmp(lgopts[option_index].name,
						"no-numa", 7)) {
				printf("numa is disabled \n");
				numa_on = 0;
			}

			if (!strncmp(lgopts[option_index].name,
					"enable-jumbo", 12)) {
				struct option lenopts =
					{"max-pkt-len", required_argument, \
									0, 0};

				printf("jumbo frame is enabled \n");
				port_conf.rxmode.offloads |=
						DEV_RX_OFFLOAD_JUMBO_FRAME;
				port_conf.txmode.offloads |=
						DEV_TX_OFFLOAD_MULTI_SEGS;

				/**
				 * if no max-pkt-len set, use the default value
				 * ETHER_MAX_LEN
				 */
				if (0 == getopt_long(argc, argvopt, "",
						&lenopts, &option_index)) {
					ret = parse_max_pkt_len(optarg);
					if ((ret < 64) ||
						(ret > MAX_JUMBO_PKT_LEN)){
						printf("invalid packet "
								"length\n");
						print_usage(prgname);
						return -1;
					}
					port_conf.rxmode.max_rx_pkt_len = ret;
				}
				printf("set jumbo frame "
					"max packet length to %u\n",
				(unsigned int)port_conf.rxmode.max_rx_pkt_len);
			}

			if (!strncmp(lgopts[option_index].name,
				     CMD_LINE_OPT_PARSE_PTYPE,
				     sizeof(CMD_LINE_OPT_PARSE_PTYPE))) {
				printf("soft parse-ptype is enabled\n");
				parse_ptype = 1;
			}

			break;

		default:
			print_usage(prgname);
			return -1;
		}
	}

	if (optind >= 0)
		argv[optind-1] = prgname;

	ret = optind-1;
	optind = 1; /* reset getopt lib */
	return ret;
}

static void
print_ethaddr(const char *name, const struct ether_addr *eth_addr)
{
	char buf[ETHER_ADDR_FMT_SIZE];
	ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr);
	printf("%s%s", name, buf);
}

#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
static void
setup_hash(int socketid)
{
	struct rte_hash_parameters ipv4_l3fwd_hash_params = {
		.name = NULL,
		.entries = L3FWD_HASH_ENTRIES,
		.key_len = sizeof(struct ipv4_5tuple),
		.hash_func = DEFAULT_HASH_FUNC,
		.hash_func_init_val = 0,
	};

	struct rte_hash_parameters ipv6_l3fwd_hash_params = {
		.name = NULL,
		.entries = L3FWD_HASH_ENTRIES,
		.key_len = sizeof(struct ipv6_5tuple),
		.hash_func = DEFAULT_HASH_FUNC,
		.hash_func_init_val = 0,
	};

	unsigned i;
	int ret;
	char s[64];

	/* create ipv4 hash */
	snprintf(s, sizeof(s), "ipv4_l3fwd_hash_%d", socketid);
	ipv4_l3fwd_hash_params.name = s;
	ipv4_l3fwd_hash_params.socket_id = socketid;
	ipv4_l3fwd_lookup_struct[socketid] =
		rte_hash_create(&ipv4_l3fwd_hash_params);
	if (ipv4_l3fwd_lookup_struct[socketid] == NULL)
		rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on "
				"socket %d\n", socketid);

	/* create ipv6 hash */
	snprintf(s, sizeof(s), "ipv6_l3fwd_hash_%d", socketid);
	ipv6_l3fwd_hash_params.name = s;
	ipv6_l3fwd_hash_params.socket_id = socketid;
	ipv6_l3fwd_lookup_struct[socketid] =
		rte_hash_create(&ipv6_l3fwd_hash_params);
	if (ipv6_l3fwd_lookup_struct[socketid] == NULL)
		rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on "
				"socket %d\n", socketid);


	/* populate the ipv4 hash */
	for (i = 0; i < IPV4_L3FWD_NUM_ROUTES; i++) {
		ret = rte_hash_add_key (ipv4_l3fwd_lookup_struct[socketid],
				(void *) &ipv4_l3fwd_route_array[i].key);
		if (ret < 0) {
			rte_exit(EXIT_FAILURE, "Unable to add entry %u to the"
				"l3fwd hash on socket %d\n", i, socketid);
		}
		ipv4_l3fwd_out_if[ret] = ipv4_l3fwd_route_array[i].if_out;
		printf("Hash: Adding key\n");
		print_ipv4_key(ipv4_l3fwd_route_array[i].key);
	}

	/* populate the ipv6 hash */
	for (i = 0; i < IPV6_L3FWD_NUM_ROUTES; i++) {
		ret = rte_hash_add_key (ipv6_l3fwd_lookup_struct[socketid],
				(void *) &ipv6_l3fwd_route_array[i].key);
		if (ret < 0) {
			rte_exit(EXIT_FAILURE, "Unable to add entry %u to the"
				"l3fwd hash on socket %d\n", i, socketid);
		}
		ipv6_l3fwd_out_if[ret] = ipv6_l3fwd_route_array[i].if_out;
		printf("Hash: Adding key\n");
		print_ipv6_key(ipv6_l3fwd_route_array[i].key);
	}
}
#endif

#if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
static void
setup_lpm(int socketid)
{
	unsigned i;
	int ret;
	char s[64];

	/* create the LPM table */
	struct rte_lpm_config lpm_ipv4_config;

	lpm_ipv4_config.max_rules = IPV4_L3FWD_LPM_MAX_RULES;
	lpm_ipv4_config.number_tbl8s = 256;
	lpm_ipv4_config.flags = 0;

	snprintf(s, sizeof(s), "IPV4_L3FWD_LPM_%d", socketid);
	ipv4_l3fwd_lookup_struct[socketid] =
			rte_lpm_create(s, socketid, &lpm_ipv4_config);
	if (ipv4_l3fwd_lookup_struct[socketid] == NULL)
		rte_exit(EXIT_FAILURE, "Unable to create the l3fwd LPM table"
				" on socket %d\n", socketid);

	/* populate the LPM table */
	for (i = 0; i < IPV4_L3FWD_NUM_ROUTES; i++) {
		ret = rte_lpm_add(ipv4_l3fwd_lookup_struct[socketid],
			ipv4_l3fwd_route_array[i].ip,
			ipv4_l3fwd_route_array[i].depth,
			ipv4_l3fwd_route_array[i].if_out);

		if (ret < 0) {
			rte_exit(EXIT_FAILURE, "Unable to add entry %u to the "
				"l3fwd LPM table on socket %d\n",
				i, socketid);
		}

		printf("LPM: Adding route 0x%08x / %d (%d)\n",
			(unsigned)ipv4_l3fwd_route_array[i].ip,
			ipv4_l3fwd_route_array[i].depth,
			ipv4_l3fwd_route_array[i].if_out);
	}
}
#endif

static int
init_mem(unsigned nb_mbuf)
{
	struct lcore_conf *qconf;
	int socketid;
	unsigned lcore_id;
	char s[64];

	for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
		if (rte_lcore_is_enabled(lcore_id) == 0)
			continue;

		if (numa_on)
			socketid = rte_lcore_to_socket_id(lcore_id);
		else
			socketid = 0;

		if (socketid >= NB_SOCKETS) {
			rte_exit(EXIT_FAILURE, "Socket %d of lcore %u is "
					"out of range %d\n", socketid,
						lcore_id, NB_SOCKETS);
		}
		if (pktmbuf_pool[socketid] == NULL) {
			snprintf(s, sizeof(s), "mbuf_pool_%d", socketid);
			pktmbuf_pool[socketid] =
				rte_pktmbuf_pool_create(s, nb_mbuf,
					MEMPOOL_CACHE_SIZE, 0,
					RTE_MBUF_DEFAULT_BUF_SIZE,
					socketid);
			if (pktmbuf_pool[socketid] == NULL)
				rte_exit(EXIT_FAILURE,
					"Cannot init mbuf pool on socket %d\n",
								socketid);
			else
				printf("Allocated mbuf pool on socket %d\n",
								socketid);

#if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
			setup_lpm(socketid);
#else
			setup_hash(socketid);
#endif
		}
		qconf = &lcore_conf[lcore_id];
		qconf->ipv4_lookup_struct = ipv4_l3fwd_lookup_struct[socketid];
#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
		qconf->ipv6_lookup_struct = ipv6_l3fwd_lookup_struct[socketid];
#endif
	}
	return 0;
}

/* Check the link status of all ports in up to 9s, and print them finally */
static void
check_all_ports_link_status(uint32_t port_mask)
{
#define CHECK_INTERVAL 100 /* 100ms */
#define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
	uint8_t count, all_ports_up, print_flag = 0;
	uint16_t portid;
	struct rte_eth_link link;

	printf("\nChecking link status");
	fflush(stdout);
	for (count = 0; count <= MAX_CHECK_TIME; count++) {
		all_ports_up = 1;
		RTE_ETH_FOREACH_DEV(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 == ETH_LINK_DOWN) {
				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");
		}
	}
}

static int check_ptype(uint16_t portid)
{
	int i, ret;
	int ptype_l3_ipv4 = 0;
#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
	int ptype_l3_ipv6 = 0;
#endif
	uint32_t ptype_mask = RTE_PTYPE_L3_MASK;

	ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, NULL, 0);
	if (ret <= 0)
		return 0;

	uint32_t ptypes[ret];

	ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, ptypes, ret);
	for (i = 0; i < ret; ++i) {
		if (ptypes[i] & RTE_PTYPE_L3_IPV4)
			ptype_l3_ipv4 = 1;
#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
		if (ptypes[i] & RTE_PTYPE_L3_IPV6)
			ptype_l3_ipv6 = 1;
#endif
	}

	if (ptype_l3_ipv4 == 0)
		printf("port %d cannot parse RTE_PTYPE_L3_IPV4\n", portid);

#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
	if (ptype_l3_ipv6 == 0)
		printf("port %d cannot parse RTE_PTYPE_L3_IPV6\n", portid);
#endif

#if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
	if (ptype_l3_ipv4)
#else /* APP_LOOKUP_EXACT_MATCH */
	if (ptype_l3_ipv4 && ptype_l3_ipv6)
#endif
		return 1;

	return 0;

}

static int
init_power_library(void)
{
	int ret = 0, lcore_id;
	for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
		if (rte_lcore_is_enabled(lcore_id)) {
			/* init power management library */
			ret = rte_power_init(lcore_id);
			if (ret)
				RTE_LOG(ERR, POWER,
				"Library initialization failed on core %u\n",
				lcore_id);
		}
	}
	return ret;
}

int
main(int argc, char **argv)
{
	struct lcore_conf *qconf;
	struct rte_eth_dev_info dev_info;
	struct rte_eth_txconf *txconf;
	int ret;
	uint16_t nb_ports;
	uint16_t queueid;
	unsigned lcore_id;
	uint64_t hz;
	uint32_t n_tx_queue, nb_lcores;
	uint32_t dev_rxq_num, dev_txq_num;
	uint8_t nb_rx_queue, queue, socketid;
	uint16_t portid;

	/* catch SIGINT and restore cpufreq governor to ondemand */
	signal(SIGINT, signal_exit_now);

	/* init EAL */
	ret = rte_eal_init(argc, argv);
	if (ret < 0)
		rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
	argc -= ret;
	argv += ret;

	/* init RTE timer library to be used late */
	rte_timer_subsystem_init();

	/* parse application arguments (after the EAL ones) */
	ret = parse_args(argc, argv);
	if (ret < 0)
		rte_exit(EXIT_FAILURE, "Invalid L3FWD parameters\n");

	if (init_power_library())
		rte_exit(EXIT_FAILURE, "init_power_library failed\n");

	if (update_lcore_params() < 0)
		rte_exit(EXIT_FAILURE, "update_lcore_params failed\n");

	if (check_lcore_params() < 0)
		rte_exit(EXIT_FAILURE, "check_lcore_params failed\n");

	ret = init_lcore_rx_queues();
	if (ret < 0)
		rte_exit(EXIT_FAILURE, "init_lcore_rx_queues failed\n");

	nb_ports = rte_eth_dev_count_avail();

	if (check_port_config() < 0)
		rte_exit(EXIT_FAILURE, "check_port_config failed\n");

	nb_lcores = rte_lcore_count();

	/* initialize all ports */
	RTE_ETH_FOREACH_DEV(portid) {
		struct rte_eth_conf local_port_conf = port_conf;

		/* skip ports that are not enabled */
		if ((enabled_port_mask & (1 << portid)) == 0) {
			printf("\nSkipping disabled port %d\n", portid);
			continue;
		}

		/* init port */
		printf("Initializing port %d ... ", portid );
		fflush(stdout);

		rte_eth_dev_info_get(portid, &dev_info);
		dev_rxq_num = dev_info.max_rx_queues;
		dev_txq_num = dev_info.max_tx_queues;

		nb_rx_queue = get_port_n_rx_queues(portid);
		if (nb_rx_queue > dev_rxq_num)
			rte_exit(EXIT_FAILURE,
				"Cannot configure not existed rxq: "
				"port=%d\n", portid);

		n_tx_queue = nb_lcores;
		if (n_tx_queue > dev_txq_num)
			n_tx_queue = dev_txq_num;
		printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
			nb_rx_queue, (unsigned)n_tx_queue );
		/* If number of Rx queue is 0, no need to enable Rx interrupt */
		if (nb_rx_queue == 0)
			local_port_conf.intr_conf.rxq = 0;
		rte_eth_dev_info_get(portid, &dev_info);
		if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
			local_port_conf.txmode.offloads |=
				DEV_TX_OFFLOAD_MBUF_FAST_FREE;

		local_port_conf.rx_adv_conf.rss_conf.rss_hf &=
			dev_info.flow_type_rss_offloads;
		if (local_port_conf.rx_adv_conf.rss_conf.rss_hf !=
				port_conf.rx_adv_conf.rss_conf.rss_hf) {
			printf("Port %u modified RSS hash function based on hardware support,"
				"requested:%#"PRIx64" configured:%#"PRIx64"\n",
				portid,
				port_conf.rx_adv_conf.rss_conf.rss_hf,
				local_port_conf.rx_adv_conf.rss_conf.rss_hf);
		}

		ret = rte_eth_dev_configure(portid, nb_rx_queue,
					(uint16_t)n_tx_queue, &local_port_conf);
		if (ret < 0)
			rte_exit(EXIT_FAILURE, "Cannot configure device: "
					"err=%d, port=%d\n", ret, portid);

		ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
						       &nb_txd);
		if (ret < 0)
			rte_exit(EXIT_FAILURE,
				 "Cannot adjust number of descriptors: err=%d, port=%d\n",
				 ret, portid);

		rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
		print_ethaddr(" Address:", &ports_eth_addr[portid]);
		printf(", ");

		/* init memory */
		ret = init_mem(NB_MBUF);
		if (ret < 0)
			rte_exit(EXIT_FAILURE, "init_mem failed\n");

		for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
			if (rte_lcore_is_enabled(lcore_id) == 0)
				continue;

			/* Initialize TX buffers */
			qconf = &lcore_conf[lcore_id];
			qconf->tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
				RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
				rte_eth_dev_socket_id(portid));
			if (qconf->tx_buffer[portid] == NULL)
				rte_exit(EXIT_FAILURE, "Can't allocate tx buffer for port %u\n",
						 portid);

			rte_eth_tx_buffer_init(qconf->tx_buffer[portid], MAX_PKT_BURST);
		}

		/* init one TX queue per couple (lcore,port) */
		queueid = 0;
		for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
			if (rte_lcore_is_enabled(lcore_id) == 0)
				continue;

			if (queueid >= dev_txq_num)
				continue;

			if (numa_on)
				socketid = \
				(uint8_t)rte_lcore_to_socket_id(lcore_id);
			else
				socketid = 0;

			printf("txq=%u,%d,%d ", lcore_id, queueid, socketid);
			fflush(stdout);

			txconf = &dev_info.default_txconf;
			txconf->offloads = local_port_conf.txmode.offloads;
			ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
						     socketid, txconf);
			if (ret < 0)
				rte_exit(EXIT_FAILURE,
					"rte_eth_tx_queue_setup: err=%d, "
						"port=%d\n", ret, portid);

			qconf = &lcore_conf[lcore_id];
			qconf->tx_queue_id[portid] = queueid;
			queueid++;

			qconf->tx_port_id[qconf->n_tx_port] = portid;
			qconf->n_tx_port++;
		}
		printf("\n");
	}

	for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
		if (rte_lcore_is_enabled(lcore_id) == 0)
			continue;

		/* init timer structures for each enabled lcore */
		rte_timer_init(&power_timers[lcore_id]);
		hz = rte_get_timer_hz();
		rte_timer_reset(&power_timers[lcore_id],
			hz/TIMER_NUMBER_PER_SECOND, SINGLE, lcore_id,
						power_timer_cb, NULL);

		qconf = &lcore_conf[lcore_id];
		printf("\nInitializing rx queues on lcore %u ... ", lcore_id );
		fflush(stdout);
		/* init RX queues */
		for(queue = 0; queue < qconf->n_rx_queue; ++queue) {
			struct rte_eth_rxconf rxq_conf;
			struct rte_eth_dev *dev;
			struct rte_eth_conf *conf;

			portid = qconf->rx_queue_list[queue].port_id;
			queueid = qconf->rx_queue_list[queue].queue_id;
			dev = &rte_eth_devices[portid];
			conf = &dev->data->dev_conf;

			if (numa_on)
				socketid = \
				(uint8_t)rte_lcore_to_socket_id(lcore_id);
			else
				socketid = 0;

			printf("rxq=%d,%d,%d ", portid, queueid, socketid);
			fflush(stdout);

			rte_eth_dev_info_get(portid, &dev_info);
			rxq_conf = dev_info.default_rxconf;
			rxq_conf.offloads = conf->rxmode.offloads;
			ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
				socketid, &rxq_conf,
				pktmbuf_pool[socketid]);
			if (ret < 0)
				rte_exit(EXIT_FAILURE,
					"rte_eth_rx_queue_setup: err=%d, "
						"port=%d\n", ret, portid);

			if (parse_ptype) {
				if (add_cb_parse_ptype(portid, queueid) < 0)
					rte_exit(EXIT_FAILURE,
						 "Fail to add ptype cb\n");
			} else if (!check_ptype(portid))
				rte_exit(EXIT_FAILURE,
					 "PMD can not provide needed ptypes\n");
		}
	}

	printf("\n");

	/* start ports */
	RTE_ETH_FOREACH_DEV(portid) {
		if ((enabled_port_mask & (1 << portid)) == 0) {
			continue;
		}
		/* Start device */
		ret = rte_eth_dev_start(portid);
		if (ret < 0)
			rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, "
						"port=%d\n", ret, portid);
		/*
		 * If enabled, put device in promiscuous mode.
		 * This allows IO forwarding mode to forward packets
		 * to itself through 2 cross-connected  ports of the
		 * target machine.
		 */
		if (promiscuous_on)
			rte_eth_promiscuous_enable(portid);
		/* initialize spinlock for each port */
		rte_spinlock_init(&(locks[portid]));
	}

	check_all_ports_link_status(enabled_port_mask);

	/* launch per-lcore init on every lcore */
	rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER);
	RTE_LCORE_FOREACH_SLAVE(lcore_id) {
		if (rte_eal_wait_lcore(lcore_id) < 0)
			return -1;
	}

	return 0;
}