aboutsummaryrefslogtreecommitdiffstats
path: root/src/plugins/dpdk/device/cli.c
blob: 40ec32325e403687e13281535c2dee7f690626da (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
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
/*
 * Copyright (c) 2015 Cisco and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <unistd.h>
#include <fcntl.h>

#include <vnet/vnet.h>
#include <vppinfra/vec.h>
#include <vppinfra/error.h>
#include <vppinfra/format.h>
#include <vppinfra/xxhash.h>
#include <vppinfra/linux/sysfs.c>

#include <vnet/ethernet/ethernet.h>
#include <dpdk/device/dpdk.h>
#include <vnet/classify/vnet_classify.h>
#include <vnet/mpls/packet.h>

#include <dpdk/device/dpdk_priv.h>

/**
 * @file
 * @brief CLI for DPDK Abstraction Layer and pcap Tx Trace.
 *
 * This file contains the source code for CLI for DPDK
 * Abstraction Layer and pcap Tx Trace.
 */


static clib_error_t *
get_hqos (u32 hw_if_index, u32 subport_id, dpdk_device_t ** xd,
	  dpdk_device_config_t ** devconf)
{
  dpdk_main_t *dm = &dpdk_main;
  vnet_hw_interface_t *hw;
  struct rte_eth_dev_info dev_info;
  struct rte_pci_device *pci_dev;
  uword *p = 0;
  clib_error_t *error = NULL;


  if (hw_if_index == (u32) ~ 0)
    {
      error = clib_error_return (0, "please specify valid interface name");
      goto done;
    }

  if (subport_id != 0)
    {
      error = clib_error_return (0, "Invalid subport");
      goto done;
    }

  hw = vnet_get_hw_interface (dm->vnet_main, hw_if_index);
  *xd = vec_elt_at_index (dm->devices, hw->dev_instance);

  rte_eth_dev_info_get ((*xd)->port_id, &dev_info);

#if RTE_VERSION < RTE_VERSION_NUM(18, 5, 0, 0)
  pci_dev = dev_info.pci_dev;
#else
  pci_dev = RTE_DEV_TO_PCI (dev_info.device);
#endif

  if (pci_dev)
    {				/* bonded interface has no pci info */
      vlib_pci_addr_t pci_addr;

      pci_addr.domain = pci_dev->addr.domain;
      pci_addr.bus = pci_dev->addr.bus;
      pci_addr.slot = pci_dev->addr.devid;
      pci_addr.function = pci_dev->addr.function;

      p =
	hash_get (dm->conf->device_config_index_by_pci_addr, pci_addr.as_u32);
    }

  if (p)
    (*devconf) = pool_elt_at_index (dm->conf->dev_confs, p[0]);
  else
    (*devconf) = &dm->conf->default_devconf;

done:
  return error;
}

static inline clib_error_t *
pcap_trace_command_internal (vlib_main_t * vm,
			     unformat_input_t * input,
			     vlib_cli_command_t * cmd, int rx_tx)
{
#define PCAP_DEF_PKT_TO_CAPTURE (100)

  unformat_input_t _line_input, *line_input = &_line_input;
  dpdk_main_t *dm = &dpdk_main;
  u8 *filename;
  u8 *chroot_filename = 0;
  u32 max = 0;
  int enabled = 0;
  int errorFlag = 0;
  clib_error_t *error = 0;

  /* Get a line of input. */
  if (!unformat_user (input, unformat_line_input, line_input))
    return 0;

  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
    {
      if (unformat (line_input, "on"))
	{
	  if (dm->pcap[rx_tx].pcap_enable == 0)
	    {
	      enabled = 1;
	    }
	  else
	    {
	      vlib_cli_output (vm, "pcap tx capture already on...");
	      errorFlag = 1;
	      break;
	    }
	}
      else if (unformat (line_input, "off"))
	{
	  if (dm->pcap[rx_tx].pcap_enable)
	    {
	      vlib_cli_output
		(vm, "captured %d pkts...",
		 dm->pcap[rx_tx].pcap_main.n_packets_captured);
	      if (dm->pcap[rx_tx].pcap_main.n_packets_captured)
		{
		  dm->pcap[rx_tx].pcap_main.n_packets_to_capture =
		    dm->pcap[rx_tx].pcap_main.n_packets_captured;
		  error = pcap_write (&dm->pcap[rx_tx].pcap_main);
		  if (error)
		    clib_error_report (error);
		  else
		    vlib_cli_output (vm, "saved to %s...",
				     dm->pcap[rx_tx].pcap_main.file_name);
		}

	      dm->pcap[rx_tx].pcap_enable = 0;
	    }
	  else
	    {
	      vlib_cli_output (vm, "pcap tx capture already off...");
	      errorFlag = 1;
	      break;
	    }
	}
      else if (unformat (line_input, "max %d", &max))
	{
	  if (dm->pcap[rx_tx].pcap_enable)
	    {
	      vlib_cli_output
		(vm,
		 "can't change max value while pcap tx capture active...");
	      errorFlag = 1;
	      break;
	    }
	  dm->pcap[rx_tx].pcap_main.n_packets_to_capture = max;
	}
      else if (unformat (line_input, "intfc %U",
			 unformat_vnet_sw_interface, dm->vnet_main,
			 &dm->pcap[rx_tx].pcap_sw_if_index))
	;

      else if (unformat (line_input, "intfc any"))
	{
	  dm->pcap[rx_tx].pcap_sw_if_index = 0;
	}
      else if (unformat (line_input, "file %s", &filename))
	{
	  if (dm->pcap[rx_tx].pcap_enable)
	    {
	      vlib_cli_output
		(vm, "can't change file while pcap tx capture active...");
	      errorFlag = 1;
	      break;
	    }

	  /* Brain-police user path input */
	  if (strstr ((char *) filename, "..")
	      || index ((char *) filename, '/'))
	    {
	      vlib_cli_output (vm, "illegal characters in filename '%s'",
			       filename);
	      vlib_cli_output (vm, "Hint: .. and / are not allowed.");
	      vec_free (filename);
	      errorFlag = 1;
	      break;
	    }

	  chroot_filename = format (0, "/tmp/%s%c", filename, 0);
	  vec_free (filename);
	}
      else if (unformat (line_input, "status"))
	{
	  if (dm->pcap[rx_tx].pcap_sw_if_index == 0)
	    {
	      vlib_cli_output
		(vm, "max is %d for any interface to file %s",
		 dm->pcap[rx_tx].pcap_main.n_packets_to_capture ?
		 dm->pcap[rx_tx].pcap_main.n_packets_to_capture
		 : PCAP_DEF_PKT_TO_CAPTURE,
		 dm->pcap[rx_tx].pcap_main.file_name ?
		 (u8 *) dm->pcap[rx_tx].pcap_main.file_name :
		 (u8 *) "/tmp/vpe.pcap");
	    }
	  else
	    {
	      vlib_cli_output (vm, "max is %d for interface %U to file %s",
			       dm->pcap[rx_tx].pcap_main.n_packets_to_capture
			       ? dm->pcap[rx_tx].
			       pcap_main.n_packets_to_capture :
			       PCAP_DEF_PKT_TO_CAPTURE,
			       format_vnet_sw_if_index_name, dm->vnet_main,
			       dm->pcap_sw_if_index,
			       dm->pcap[rx_tx].
			       pcap_main.file_name ? (u8 *) dm->pcap[rx_tx].
			       pcap_main.file_name : (u8 *) "/tmp/vpe.pcap");
	    }

	  if (dm->pcap[rx_tx].pcap_enable == 0)
	    {
	      vlib_cli_output (vm, "pcap %s capture is off...",
			       (rx_tx == VLIB_RX) ? "rx" : "tx");
	    }
	  else
	    {
	      vlib_cli_output (vm, "pcap %s capture is on: %d of %d pkts...",
			       (rx_tx == VLIB_RX) ? "rx" : "tx",
			       dm->pcap[rx_tx].pcap_main.n_packets_captured,
			       dm->pcap[rx_tx].
			       pcap_main.n_packets_to_capture);
	    }
	  break;
	}

      else
	{
	  error = clib_error_return (0, "unknown input `%U'",
				     format_unformat_error, line_input);
	  errorFlag = 1;
	  break;
	}
    }
  unformat_free (line_input);


  if (errorFlag == 0)
    {
      /* Since no error, save configured values. */
      if (chroot_filename)
	{
	  if (dm->pcap[rx_tx].pcap_main.file_name)
	    vec_free (dm->pcap[rx_tx].pcap_main.file_name);
	  vec_add1 (chroot_filename, 0);
	  dm->pcap[rx_tx].pcap_main.file_name = (char *) chroot_filename;
	}

      if (max)
	dm->pcap[rx_tx].pcap_main.n_packets_to_capture = max;

      if (enabled)
	{
	  if (dm->pcap[rx_tx].pcap_main.file_name == 0)
	    dm->pcap[rx_tx].pcap_main.file_name
	      = (char *) format (0, "/tmp/vpe.pcap%c", 0);

	  dm->pcap[rx_tx].pcap_main.n_packets_captured = 0;
	  dm->pcap[rx_tx].pcap_main.packet_type = PCAP_PACKET_TYPE_ethernet;
	  if (dm->pcap[rx_tx].pcap_main.lock == 0)
	    clib_spinlock_init (&(dm->pcap[rx_tx].pcap_main.lock));
	  dm->pcap[rx_tx].pcap_enable = 1;
	  vlib_cli_output (vm, "pcap %s capture on...",
			   rx_tx == VLIB_RX ? "rx" : "tx");
	}
    }
  else if (chroot_filename)
    vec_free (chroot_filename);

  return error;
}

static clib_error_t *
pcap_rx_trace_command_fn (vlib_main_t * vm,
			  unformat_input_t * input, vlib_cli_command_t * cmd)
{
  return pcap_trace_command_internal (vm, input, cmd, VLIB_RX);
}

static clib_error_t *
pcap_tx_trace_command_fn (vlib_main_t * vm,
			  unformat_input_t * input, vlib_cli_command_t * cmd)
{
  return pcap_trace_command_internal (vm, input, cmd, VLIB_TX);
}


/*?
 * This command is used to start or stop a packet capture, or show
 * the status of packet capture. Note that both "pcap rx trace" and
 * "pcap tx trace" are implemented. The command syntax is identical,
 * simply substitute rx for tx as needed.
 *
 * This command has the following optional parameters:
 *
 * - <b>on|off</b> - Used to start or stop a packet capture.
 *
 * - <b>max <nn></b> - Depth of local buffer. Once '<em>nn</em>' number
 *   of packets have been received, buffer is flushed to file. Once another
 *   '<em>nn</em>' number of packets have been received, buffer is flushed
 *   to file, overwriting previous write. If not entered, value defaults
 *   to 100. Can only be updated if packet capture is off.
 *
 * - <b>intfc <interface>|any</b> - Used to specify a given interface,
 *   or use '<em>any</em>' to run packet capture on all interfaces.
 *   '<em>any</em>' is the default if not provided. Settings from a previous
 *   packet capture are preserved, so '<em>any</em>' can be used to reset
 *   the interface setting.
 *
 * - <b>file <name></b> - Used to specify the output filename. The file will
 *   be placed in the '<em>/tmp</em>' directory, so only the filename is
 *   supported. Directory should not be entered. If file already exists, file
 *   will be overwritten. If no filename is provided, '<em>/tmp/vpe.pcap</em>'
 *   will be used. Can only be updated if packet capture is off.
 *
 * - <b>status</b> - Displays the current status and configured attributes
 *   associated with a packet capture. If packet capture is in progress,
 *   '<em>status</em>' also will return the number of packets currently in
 *   the local buffer. All additional attributes entered on command line
 *   with '<em>status</em>' will be ingnored and not applied.
 *
 * @cliexpar
 * Example of how to display the status of a tx packet capture when off:
 * @cliexstart{pcap tx trace status}
 * max is 100, for any interface to file /tmp/vpe.pcap
 * pcap tx capture is off...
 * @cliexend
 * Example of how to start a tx packet capture:
 * @cliexstart{pcap tx trace on max 35 intfc GigabitEthernet0/8/0 file vppTest.pcap}
 * pcap tx capture on...
 * @cliexend
 * Example of how to display the status of a tx packet capture in progress:
 * @cliexstart{pcap tx trace status}
 * max is 35, for interface GigabitEthernet0/8/0 to file /tmp/vppTest.pcap
 * pcap tx capture is on: 20 of 35 pkts...
 * @cliexend
 * Example of how to stop a tx packet capture:
 * @cliexstart{vppctl pcap tx trace off}
 * captured 21 pkts...
 * saved to /tmp/vppTest.pcap...
 * @cliexend
?*/
/* *INDENT-OFF* */

VLIB_CLI_COMMAND (pcap_tx_trace_command, static) = {
    .path = "pcap tx trace",
    .short_help =
    "pcap tx trace [on|off] [max <nn>] [intfc <interface>|any] [file <name>] [status]",
    .function = pcap_tx_trace_command_fn,
};
VLIB_CLI_COMMAND (pcap_rx_trace_command, static) = {
    .path = "pcap rx trace",
    .short_help =
    "pcap rx trace [on|off] [max <nn>] [intfc <interface>|any] [file <name>] [status]",
    .function = pcap_rx_trace_command_fn,
};
/* *INDENT-ON* */


static clib_error_t *
show_dpdk_buffer (vlib_main_t * vm, unformat_input_t * input,
		  vlib_cli_command_t * cmd)
{
  struct rte_mempool *rmp;
  int i;

  for (i = 0; i < vec_len (dpdk_main.pktmbuf_pools); i++)
    {
      rmp = dpdk_main.pktmbuf_pools[i];
      if (rmp)
	{
	  unsigned count = rte_mempool_avail_count (rmp);
	  unsigned free_count = rte_mempool_in_use_count (rmp);

	  vlib_cli_output (vm,
			   "name=\"%s\"  available = %7d allocated = %7d total = %7d\n",
			   rmp->name, (u32) count, (u32) free_count,
			   (u32) (count + free_count));
	}
      else
	{
	  vlib_cli_output (vm, "rte_mempool is NULL (!)\n");
	}
    }
  return 0;
}

/*?
 * This command displays statistics of each DPDK mempool.
 *
 * @cliexpar
 * Example of how to display DPDK buffer data:
 * @cliexstart{show dpdk buffer}
 * name="mbuf_pool_socket0"  available =   15104 allocated =    1280 total =   16384
 * @cliexend
?*/
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (cmd_show_dpdk_buffer,static) = {
    .path = "show dpdk buffer",
    .short_help = "show dpdk buffer",
    .function = show_dpdk_buffer,
    .is_mp_safe = 1,
};
/* *INDENT-ON* */

static clib_error_t *
show_dpdk_physmem (vlib_main_t * vm, unformat_input_t * input,
		   vlib_cli_command_t * cmd)
{
  clib_error_t *err = 0;
  u32 pipe_max_size;
  int fds[2];
  u8 *s = 0;
  int n, n_try;
  FILE *f;

  err = clib_sysfs_read ("/proc/sys/fs/pipe-max-size", "%u", &pipe_max_size);

  if (err)
    return err;

  if (pipe (fds) == -1)
    return clib_error_return_unix (0, "pipe");

#ifndef F_SETPIPE_SZ
#define F_SETPIPE_SZ	(1024 + 7)
#endif

  if (fcntl (fds[1], F_SETPIPE_SZ, pipe_max_size) == -1)
    {
      err = clib_error_return_unix (0, "fcntl(F_SETPIPE_SZ)");
      goto error;
    }

  if (fcntl (fds[0], F_SETFL, O_NONBLOCK) == -1)
    {
      err = clib_error_return_unix (0, "fcntl(F_SETFL)");
      goto error;
    }

  if ((f = fdopen (fds[1], "a")) == 0)
    {
      err = clib_error_return_unix (0, "fdopen");
      goto error;
    }

  rte_dump_physmem_layout (f);
  fflush (f);

  n = n_try = 4096;
  while (n == n_try)
    {
      uword len = vec_len (s);
      vec_resize (s, len + n_try);

      n = read (fds[0], s + len, n_try);
      if (n < 0 && errno != EAGAIN)
	{
	  err = clib_error_return_unix (0, "read");
	  goto error;
	}
      _vec_len (s) = len + (n < 0 ? 0 : n);
    }

  vlib_cli_output (vm, "%v", s);

error:
  close (fds[0]);
  close (fds[1]);
  vec_free (s);
  return err;
}

/*?
 * This command displays DPDK physmem layout
 *
 * @cliexpar
 * Example of how to display DPDK physmem layout:
 * @cliexstart{show dpdk physmem}
 * @cliexend
?*/
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (cmd_show_dpdk_physmem,static) = {
    .path = "show dpdk physmem",
    .short_help = "show dpdk physmem",
    .function = show_dpdk_physmem,
    .is_mp_safe = 1,
};
/* *INDENT-ON* */

static clib_error_t *
test_dpdk_buffer (vlib_main_t * vm, unformat_input_t * input,
		  vlib_cli_command_t * cmd)
{
  static u32 *allocated_buffers;
  u32 n_alloc = 0;
  u32 n_free = 0;
  u32 first, actual_alloc;

  while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
    {
      if (unformat (input, "allocate %d", &n_alloc))
	;
      else if (unformat (input, "free %d", &n_free))
	;
      else
	break;
    }

  if (n_free)
    {
      if (vec_len (allocated_buffers) < n_free)
	return clib_error_return (0, "Can't free %d, only %d allocated",
				  n_free, vec_len (allocated_buffers));

      first = vec_len (allocated_buffers) - n_free;
      vlib_buffer_free (vm, allocated_buffers + first, n_free);
      _vec_len (allocated_buffers) = first;
    }
  if (n_alloc)
    {
      first = vec_len (allocated_buffers);
      vec_validate (allocated_buffers,
		    vec_len (allocated_buffers) + n_alloc - 1);

      actual_alloc = vlib_buffer_alloc (vm, allocated_buffers + first,
					n_alloc);
      _vec_len (allocated_buffers) = first + actual_alloc;

      if (actual_alloc < n_alloc)
	vlib_cli_output (vm, "WARNING: only allocated %d buffers",
			 actual_alloc);
    }

  vlib_cli_output (vm, "Currently %d buffers allocated",
		   vec_len (allocated_buffers));

  if (allocated_buffers && vec_len (allocated_buffers) == 0)
    vec_free (allocated_buffers);

  return 0;
}

/*?
 * This command tests the allocation and freeing of DPDK buffers.
 * If both '<em>allocate</em>' and '<em>free</em>' are entered on the
 * same command, the '<em>free</em>' is executed first. If no
 * parameters are provided, this command display how many DPDK buffers
 * the test command has allocated.
 *
 * @cliexpar
 * @parblock
 *
 * Example of how to display how many DPDK buffer test command has allcoated:
 * @cliexstart{test dpdk buffer}
 * Currently 0 buffers allocated
 * @cliexend
 *
 * Example of how to allocate DPDK buffers using the test command:
 * @cliexstart{test dpdk buffer allocate 10}
 * Currently 10 buffers allocated
 * @cliexend
 *
 * Example of how to free DPDK buffers allocated by the test command:
 * @cliexstart{test dpdk buffer free 10}
 * Currently 0 buffers allocated
 * @cliexend
 * @endparblock
?*/
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (cmd_test_dpdk_buffer,static) = {
    .path = "test dpdk buffer",
    .short_help = "test dpdk buffer [allocate <nn>] [free <nn>]",
    .function = test_dpdk_buffer,
    .is_mp_safe = 1,
};
/* *INDENT-ON* */

static clib_error_t *
set_dpdk_if_desc (vlib_main_t * vm, unformat_input_t * input,
		  vlib_cli_command_t * cmd)
{
  unformat_input_t _line_input, *line_input = &_line_input;
  dpdk_main_t *dm = &dpdk_main;
  vnet_hw_interface_t *hw;
  dpdk_device_t *xd;
  u32 hw_if_index = (u32) ~ 0;
  u32 nb_rx_desc = (u32) ~ 0;
  u32 nb_tx_desc = (u32) ~ 0;
  clib_error_t *error = NULL;

  if (!unformat_user (input, unformat_line_input, line_input))
    return 0;

  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
    {
      if (unformat
	  (line_input, "%U", unformat_vnet_hw_interface, dm->vnet_main,
	   &hw_if_index))
	;
      else if (unformat (line_input, "tx %d", &nb_tx_desc))
	;
      else if (unformat (line_input, "rx %d", &nb_rx_desc))
	;
      else
	{
	  error = clib_error_return (0, "parse error: '%U'",
				     format_unformat_error, line_input);
	  goto done;
	}
    }

  if (hw_if_index == (u32) ~ 0)
    {
      error = clib_error_return (0, "please specify valid interface name");
      goto done;
    }

  hw = vnet_get_hw_interface (dm->vnet_main, hw_if_index);
  xd = vec_elt_at_index (dm->devices, hw->dev_instance);

  if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
    {
      error =
	clib_error_return (0,
			   "number of descriptors can be set only for "
			   "physical devices");
      goto done;
    }

  if ((nb_rx_desc == (u32) ~ 0 || nb_rx_desc == xd->nb_rx_desc) &&
      (nb_tx_desc == (u32) ~ 0 || nb_tx_desc == xd->nb_tx_desc))
    {
      error = clib_error_return (0, "nothing changed");
      goto done;
    }

  if (nb_rx_desc != (u32) ~ 0)
    xd->nb_rx_desc = nb_rx_desc;

  if (nb_tx_desc != (u32) ~ 0)
    xd->nb_tx_desc = nb_tx_desc;

  dpdk_device_setup (xd);

  if (vec_len (xd->errors))
    return clib_error_return (0, "%U", format_dpdk_device_errors, xd);

done:
  unformat_free (line_input);

  return error;
}

/*?
 * This command sets the number of DPDK '<em>rx</em>' and
 * '<em>tx</em>' descriptors for the given physical interface. Use
 * the command '<em>show hardware-interface</em>' to display the
 * current descriptor allocation.
 *
 * @cliexpar
 * Example of how to set the DPDK interface descriptors:
 * @cliexcmd{set dpdk interface descriptors GigabitEthernet0/8/0 rx 512 tx 512}
?*/
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (cmd_set_dpdk_if_desc,static) = {
    .path = "set dpdk interface descriptors",
    .short_help = "set dpdk interface descriptors <interface> [rx <nn>] [tx <nn>]",
    .function = set_dpdk_if_desc,
};
/* *INDENT-ON* */

static int
dpdk_device_queue_sort (void *a1, void *a2)
{
  dpdk_device_and_queue_t *dq1 = a1;
  dpdk_device_and_queue_t *dq2 = a2;

  if (dq1->device > dq2->device)
    return 1;
  else if (dq1->device < dq2->device)
    return -1;
  else if (dq1->queue_id > dq2->queue_id)
    return 1;
  else if (dq1->queue_id < dq2->queue_id)
    return -1;
  else
    return 0;
}


static clib_error_t *
show_dpdk_if_hqos_placement (vlib_main_t * vm, unformat_input_t * input,
			     vlib_cli_command_t * cmd)
{
  vlib_thread_main_t *tm = vlib_get_thread_main ();
  dpdk_main_t *dm = &dpdk_main;
  dpdk_device_and_queue_t *dq;
  int cpu;

  if (tm->n_vlib_mains == 1)
    vlib_cli_output (vm, "All interfaces are handled by main thread");

  for (cpu = 0; cpu < vec_len (dm->devices_by_hqos_cpu); cpu++)
    {
      if (cpu >= dm->hqos_cpu_first_index &&
	  cpu < (dm->hqos_cpu_first_index + dm->hqos_cpu_count))
	vlib_cli_output (vm, "Thread %u (%s at lcore %u):", cpu,
			 vlib_worker_threads[cpu].name,
			 vlib_worker_threads[cpu].lcore_id);

      vec_foreach (dq, dm->devices_by_hqos_cpu[cpu])
      {
	u32 hw_if_index = dm->devices[dq->device].hw_if_index;
	vnet_hw_interface_t *hi =
	  vnet_get_hw_interface (dm->vnet_main, hw_if_index);
	vlib_cli_output (vm, "  %v queue %u", hi->name, dq->queue_id);
      }
    }
  return 0;
}

/*?
 * This command is used to display the thread and core each
 * DPDK output interface and HQoS queue is assigned too.
 *
 * @cliexpar
 * Example of how to display the DPDK output interface and HQoS queue placement:
 * @cliexstart{show dpdk interface hqos placement}
 * Thread 1 (vpp_hqos-threads_0 at lcore 3):
 *   GigabitEthernet0/8/0 queue 0
 * Thread 2 (vpp_hqos-threads_1 at lcore 4):
 *   GigabitEthernet0/9/0 queue 0
 * @cliexend
?*/
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (cmd_show_dpdk_if_hqos_placement, static) = {
  .path = "show dpdk interface hqos placement",
  .short_help = "show dpdk interface hqos placement",
  .function = show_dpdk_if_hqos_placement,
};
/* *INDENT-ON* */

static clib_error_t *
set_dpdk_if_hqos_placement (vlib_main_t * vm, unformat_input_t * input,
			    vlib_cli_command_t * cmd)
{
  unformat_input_t _line_input, *line_input = &_line_input;
  dpdk_main_t *dm = &dpdk_main;
  dpdk_device_and_queue_t *dq;
  vnet_hw_interface_t *hw;
  dpdk_device_t *xd;
  u32 hw_if_index = (u32) ~ 0;
  u32 cpu = (u32) ~ 0;
  int i;
  clib_error_t *error = NULL;

  if (!unformat_user (input, unformat_line_input, line_input))
    return 0;

  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
    {
      if (unformat
	  (line_input, "%U", unformat_vnet_hw_interface, dm->vnet_main,
	   &hw_if_index))
	;
      else if (unformat (line_input, "thread %d", &cpu))
	;
      else
	{
	  error = clib_error_return (0, "parse error: '%U'",
				     format_unformat_error, line_input);
	  goto done;
	}
    }

  if (hw_if_index == (u32) ~ 0)
    return clib_error_return (0, "please specify valid interface name");

  if (cpu < dm->hqos_cpu_first_index ||
      cpu >= (dm->hqos_cpu_first_index + dm->hqos_cpu_count))
    {
      error = clib_error_return (0, "please specify valid thread id");
      goto done;
    }

  hw = vnet_get_hw_interface (dm->vnet_main, hw_if_index);
  xd = vec_elt_at_index (dm->devices, hw->dev_instance);

  for (i = 0; i < vec_len (dm->devices_by_hqos_cpu); i++)
    {
      vec_foreach (dq, dm->devices_by_hqos_cpu[i])
      {
	if (hw_if_index == dm->devices[dq->device].hw_if_index)
	  {
	    if (cpu == i)	/* nothing to do */
	      goto done;

	    vec_del1 (dm->devices_by_hqos_cpu[i],
		      dq - dm->devices_by_hqos_cpu[i]);
	    vec_add2 (dm->devices_by_hqos_cpu[cpu], dq, 1);
	    dq->queue_id = 0;
	    dq->device = xd->device_index;

	    vec_sort_with_function (dm->devices_by_hqos_cpu[i],
				    dpdk_device_queue_sort);

	    vec_sort_with_function (dm->devices_by_hqos_cpu[cpu],
				    dpdk_device_queue_sort);

	    goto done;
	  }
      }
    }

  error = clib_error_return (0, "not found");

done:
  unformat_free (line_input);

  return error;
}

/*?
 * This command is used to assign a given DPDK output interface and
 * HQoS queue to a different thread. This will not create a thread,
 * so the thread must already exist. Use '<em>/etc/vpp/startup.conf</em>'
 * for the initial thread creation. See @ref qos_doc for more details.
 *
 * @cliexpar
 * Example of how to display the DPDK output interface and HQoS queue placement:
 * @cliexstart{show dpdk interface hqos placement}
 * Thread 1 (vpp_hqos-threads_0 at lcore 3):
 *   GigabitEthernet0/8/0 queue 0
 * Thread 2 (vpp_hqos-threads_1 at lcore 4):
 *   GigabitEthernet0/9/0 queue 0
 * @cliexend
 * Example of how to assign a DPDK output interface and HQoS queue to a thread:
 * @cliexcmd{set dpdk interface hqos placement GigabitEthernet0/8/0 thread 2}
?*/
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (cmd_set_dpdk_if_hqos_placement, static) = {
  .path = "set dpdk interface hqos placement",
  .short_help = "set dpdk interface hqos placement <interface> thread <n>",
  .function = set_dpdk_if_hqos_placement,
};
/* *INDENT-ON* */

static clib_error_t *
set_dpdk_if_hqos_pipe (vlib_main_t * vm, unformat_input_t * input,
		       vlib_cli_command_t * cmd)
{
  unformat_input_t _line_input, *line_input = &_line_input;
  dpdk_main_t *dm = &dpdk_main;
  vnet_hw_interface_t *hw;
  dpdk_device_t *xd;
  u32 hw_if_index = (u32) ~ 0;
  u32 subport_id = (u32) ~ 0;
  u32 pipe_id = (u32) ~ 0;
  u32 profile_id = (u32) ~ 0;
  int rv;
  clib_error_t *error = NULL;

  if (!unformat_user (input, unformat_line_input, line_input))
    return 0;

  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
    {
      if (unformat
	  (line_input, "%U", unformat_vnet_hw_interface, dm->vnet_main,
	   &hw_if_index))
	;
      else if (unformat (line_input, "subport %d", &subport_id))
	;
      else if (unformat (line_input, "pipe %d", &pipe_id))
	;
      else if (unformat (line_input, "profile %d", &profile_id))
	;
      else
	{
	  error = clib_error_return (0, "parse error: '%U'",
				     format_unformat_error, line_input);
	  goto done;
	}
    }

  if (hw_if_index == (u32) ~ 0)
    {
      error = clib_error_return (0, "please specify valid interface name");
      goto done;
    }

  hw = vnet_get_hw_interface (dm->vnet_main, hw_if_index);
  xd = vec_elt_at_index (dm->devices, hw->dev_instance);

  rv =
    rte_sched_pipe_config (xd->hqos_ht->hqos, subport_id, pipe_id,
			   profile_id);
  if (rv)
    {
      error = clib_error_return (0, "pipe configuration failed");
      goto done;
    }

done:
  unformat_free (line_input);

  return error;
}

/*?
 * This command is used to change the profile associate with a HQoS pipe. The
 * '<em><profile_id></em>' is zero based. Use the command
 * '<em>show dpdk interface hqos</em>' to display the content of each profile.
 * See @ref qos_doc for more details.
 *
 * @note
 * Currently there is not an API to create a new HQoS pipe profile. One is
 * created by default in the code (search for '<em>hqos_pipe_params_default</em>'').
 * Additional profiles can be created in code and code recompiled. Then use this
 * command to assign it.
 *
 * @cliexpar
 * Example of how to assign a new profile to a HQoS pipe:
 * @cliexcmd{set dpdk interface hqos pipe GigabitEthernet0/8/0 subport 0 pipe 2 profile 1}
?*/
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (cmd_set_dpdk_if_hqos_pipe, static) =
{
  .path = "set dpdk interface hqos pipe",
  .short_help = "set dpdk interface hqos pipe <interface> subport <subport_id> pipe <pipe_id> "
                  "profile <profile_id>",
  .function = set_dpdk_if_hqos_pipe,
};
/* *INDENT-ON* */

static clib_error_t *
set_dpdk_if_hqos_subport (vlib_main_t * vm, unformat_input_t * input,
			  vlib_cli_command_t * cmd)
{
  unformat_input_t _line_input, *line_input = &_line_input;
  dpdk_main_t *dm = &dpdk_main;
  dpdk_device_t *xd = NULL;
  u32 hw_if_index = (u32) ~ 0;
  u32 subport_id = (u32) ~ 0;
  struct rte_sched_subport_params p;
  int rv;
  clib_error_t *error = NULL;
  u32 tb_rate = (u32) ~ 0;
  u32 tb_size = (u32) ~ 0;
  u32 tc_rate[RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE] =
    { (u32) ~ 0, (u32) ~ 0, (u32) ~ 0, (u32) ~ 0 };
  u32 tc_period = (u32) ~ 0;
  dpdk_device_config_t *devconf = NULL;

  if (!unformat_user (input, unformat_line_input, line_input))
    return 0;

  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
    {
      if (unformat
	  (line_input, "%U", unformat_vnet_hw_interface, dm->vnet_main,
	   &hw_if_index))
	;
      else if (unformat (line_input, "subport %d", &subport_id))
	;
      else if (unformat (line_input, "rate %d", &tb_rate))
	;
      else if (unformat (line_input, "bktsize %d", &tb_size))
	;
      else if (unformat (line_input, "tc0 %d", &tc_rate[0]))
	;
      else if (unformat (line_input, "tc1 %d", &tc_rate[1]))
	;
      else if (unformat (line_input, "tc2 %d", &tc_rate[2]))
	;
      else if (unformat (line_input, "tc3 %d", &tc_rate[3]))
	;
      else if (unformat (line_input, "period %d", &tc_period))
	;
      else
	{
	  error = clib_error_return (0, "parse error: '%U'",
				     format_unformat_error, line_input);
	  goto done;
	}
    }

  error = get_hqos (hw_if_index, subport_id, &xd, &devconf);

  if (error == NULL)
    {
      /* Copy the current values over to local structure. */
      memcpy (&p, &devconf->hqos.subport[subport_id], sizeof (p));

      /* Update local structure with input values. */
      if (tb_rate != (u32) ~ 0)
	{
	  p.tb_rate = tb_rate;
	  p.tc_rate[0] = tb_rate;
	  p.tc_rate[1] = tb_rate;
	  p.tc_rate[2] = tb_rate;
	  p.tc_rate[3] = tb_rate;
	}
      if (tb_size != (u32) ~ 0)
	{
	  p.tb_size = tb_size;
	}
      if (tc_rate[0] != (u32) ~ 0)
	{
	  p.tc_rate[0] = tc_rate[0];
	}
      if (tc_rate[1] != (u32) ~ 0)
	{
	  p.tc_rate[1] = tc_rate[1];
	}
      if (tc_rate[2] != (u32) ~ 0)
	{
	  p.tc_rate[2] = tc_rate[2];
	}
      if (tc_rate[3] != (u32) ~ 0)
	{
	  p.tc_rate[3] = tc_rate[3];
	}
      if (tc_period != (u32) ~ 0)
	{
	  p.tc_period = tc_period;
	}

      /* Apply changes. */
      rv = rte_sched_subport_config (xd->hqos_ht->hqos, subport_id, &p);
      if (rv)
	{
	  error = clib_error_return (0, "subport configuration failed");
	  goto done;
	}
      else
	{
	  /* Successfully applied, so save of the input values. */
	  memcpy (&devconf->hqos.subport[subport_id], &p, sizeof (p));
	}
    }

done:
  unformat_free (line_input);

  return error;
}

/*?
 * This command is used to set the subport level parameters such as token
 * bucket rate (bytes per seconds), token bucket size (bytes), traffic class
 * rates (bytes per seconds) and token update period (Milliseconds).
 *
 * By default, the '<em>rate</em>' is set to 1250000000 bytes/second (10GbE
 * rate) and each of the four traffic classes is set to 100% of the port rate.
 * If the '<em>rate</em>' is updated by this command, all four traffic classes
 * are assigned the same value. Each of the four traffic classes can be updated
 * individually.
 *
 * @cliexpar
 * Example of how modify the subport attributes for a 1GbE link:
 * @cliexcmd{set dpdk interface hqos subport GigabitEthernet0/8/0 subport 0 rate 125000000}
?*/
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (cmd_set_dpdk_if_hqos_subport, static) = {
  .path = "set dpdk interface hqos subport",
  .short_help = "set dpdk interface hqos subport <interface> subport <subport_id> "
                 "[rate <n>] [bktsize <n>] [tc0 <n>] [tc1 <n>] [tc2 <n>] [tc3 <n>] "
                 "[period <n>]",
  .function = set_dpdk_if_hqos_subport,
};
/* *INDENT-ON* */

static clib_error_t *
set_dpdk_if_hqos_tctbl (vlib_main_t * vm, unformat_input_t * input,
			vlib_cli_command_t * cmd)
{
  unformat_input_t _line_input, *line_input = &_line_input;
  vlib_thread_main_t *tm = vlib_get_thread_main ();
  dpdk_main_t *dm = &dpdk_main;
  vnet_hw_interface_t *hw;
  dpdk_device_t *xd;
  u32 hw_if_index = (u32) ~ 0;
  u32 tc = (u32) ~ 0;
  u32 queue = (u32) ~ 0;
  u32 entry = (u32) ~ 0;
  u32 val, i;
  clib_error_t *error = NULL;

  if (!unformat_user (input, unformat_line_input, line_input))
    return 0;

  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
    {
      if (unformat
	  (line_input, "%U", unformat_vnet_hw_interface, dm->vnet_main,
	   &hw_if_index))
	;
      else if (unformat (line_input, "entry %d", &entry))
	;
      else if (unformat (line_input, "tc %d", &tc))
	;
      else if (unformat (line_input, "queue %d", &queue))
	;
      else
	{
	  error = clib_error_return (0, "parse error: '%U'",
				     format_unformat_error, line_input);
	  goto done;
	}
    }

  if (hw_if_index == (u32) ~ 0)
    {
      error = clib_error_return (0, "please specify valid interface name");
      goto done;
    }
  if (entry >= 64)
    {
      error = clib_error_return (0, "invalid entry");
      goto done;
    }
  if (tc >= RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE)
    {
      error = clib_error_return (0, "invalid traffic class");
      goto done;
    }
  if (queue >= RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS)
    {
      error = clib_error_return (0, "invalid traffic class queue");
      goto done;
    }

  hw = vnet_get_hw_interface (dm->vnet_main, hw_if_index);
  xd = vec_elt_at_index (dm->devices, hw->dev_instance);

  /* Detect the set of worker threads */
  uword *p = hash_get_mem (tm->thread_registrations_by_name, "workers");
  /* Should never happen, shut up Coverity warning */
  if (p == 0)
    {
      error = clib_error_return (0, "no worker registrations?");
      goto done;
    }

  vlib_thread_registration_t *tr = (vlib_thread_registration_t *) p[0];
  int worker_thread_first = tr->first_index;
  int worker_thread_count = tr->count;

  val = tc * RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS + queue;
  for (i = 0; i < worker_thread_count; i++)
    xd->hqos_wt[worker_thread_first + i].hqos_tc_table[entry] = val;

done:
  unformat_free (line_input);

  return error;
}

/*?
 * This command is used to set the traffic class translation table. The
 * traffic class translation table is used to map 64 values (0-63) to one of
 * four traffic class and one of four HQoS input queue. Use the '<em>show
 * dpdk interface hqos</em>' command to display the traffic class translation
 * table. See @ref qos_doc for more details.
 *
 * This command has the following parameters:
 *
 * - <b><interface></b> - Used to specify the output interface.
 *
 * - <b>entry <map_val></b> - Mapped value (0-63) to assign traffic class and queue to.
 *
 * - <b>tc <tc_id></b> - Traffic class (0-3) to be used by the provided mapped value.
 *
 * - <b>queue <queue_id></b> - HQoS input queue (0-3) to be used by the provided mapped value.
 *
 * @cliexpar
 * Example of how modify the traffic class translation table:
 * @cliexcmd{set dpdk interface hqos tctbl GigabitEthernet0/8/0 entry 16 tc 2 queue 2}
?*/
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (cmd_set_dpdk_if_hqos_tctbl, static) = {
  .path = "set dpdk interface hqos tctbl",
  .short_help = "set dpdk interface hqos tctbl <interface> entry <map_val> tc <tc_id> queue <queue_id>",
  .function = set_dpdk_if_hqos_tctbl,
};
/* *INDENT-ON* */

static clib_error_t *
set_dpdk_if_hqos_pktfield (vlib_main_t * vm, unformat_input_t * input,
			   vlib_cli_command_t * cmd)
{
  unformat_input_t _line_input, *line_input = &_line_input;
  vlib_thread_main_t *tm = vlib_get_thread_main ();
  dpdk_main_t *dm = &dpdk_main;
  clib_error_t *error = NULL;

  /* Device specific data */
  struct rte_eth_dev_info dev_info;
  struct rte_pci_device *pci_dev;
  dpdk_device_config_t *devconf = 0;
  vnet_hw_interface_t *hw;
  dpdk_device_t *xd;
  u32 hw_if_index = (u32) ~ 0;

  /* Detect the set of worker threads */
  uword *p = hash_get_mem (tm->thread_registrations_by_name, "workers");
  /* Should never happen, shut up Coverity warning */
  if (p == 0)
    return clib_error_return (0, "no worker registrations?");

  vlib_thread_registration_t *tr = (vlib_thread_registration_t *) p[0];
  int worker_thread_first = tr->first_index;
  int worker_thread_count = tr->count;

  /* Packet field configuration */
  u64 mask = (u64) ~ 0;
  u32 id = (u32) ~ 0;
  u32 offset = (u32) ~ 0;

  /* HQoS params */
  u32 n_subports_per_port, n_pipes_per_subport, tctbl_size;

  u32 i;

  /* Parse input arguments */
  if (!unformat_user (input, unformat_line_input, line_input))
    return 0;

  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
    {
      if (unformat
	  (line_input, "%U", unformat_vnet_hw_interface, dm->vnet_main,
	   &hw_if_index))
	;
      else if (unformat (line_input, "id subport"))
	id = 0;
      else if (unformat (line_input, "id pipe"))
	id = 1;
      else if (unformat (line_input, "id tc"))
	id = 2;
      else if (unformat (line_input, "id %d", &id))
	;
      else if (unformat (line_input, "offset %d", &offset))
	;
      else if (unformat (line_input, "mask %llx", &mask))
	;
      else
	{
	  error = clib_error_return (0, "parse error: '%U'",
				     format_unformat_error, line_input);
	  goto done;
	}
    }

  /* Get interface */
  if (hw_if_index == (u32) ~ 0)
    {
      error = clib_error_return (0, "please specify valid interface name");
      goto done;
    }

  hw = vnet_get_hw_interface (dm->vnet_main, hw_if_index);
  xd = vec_elt_at_index (dm->devices, hw->dev_instance);

  rte_eth_dev_info_get (xd->port_id, &dev_info);

#if RTE_VERSION < RTE_VERSION_NUM(18, 5, 0, 0)
  pci_dev = dev_info.pci_dev;
#else
  pci_dev = RTE_DEV_TO_PCI (dev_info.device);
#endif

  if (pci_dev)
    {				/* bonded interface has no pci info */
      vlib_pci_addr_t pci_addr;

      pci_addr.domain = pci_dev->addr.domain;
      pci_addr.bus = pci_dev->addr.bus;
      pci_addr.slot = pci_dev->addr.devid;
      pci_addr.function = pci_dev->addr.function;

      p =
	hash_get (dm->conf->device_config_index_by_pci_addr, pci_addr.as_u32);
    }

  if (p)
    devconf = pool_elt_at_index (dm->conf->dev_confs, p[0]);
  else
    devconf = &dm->conf->default_devconf;

  if (devconf->hqos_enabled == 0)
    {
      vlib_cli_output (vm, "HQoS disabled for this interface");
      goto done;
    }

  n_subports_per_port = devconf->hqos.port.n_subports_per_port;
  n_pipes_per_subport = devconf->hqos.port.n_pipes_per_subport;
  tctbl_size = RTE_DIM (devconf->hqos.tc_table);

  /* Validate packet field configuration: id, offset and mask */
  if (id >= 3)
    {
      error = clib_error_return (0, "invalid packet field id");
      goto done;
    }

  switch (id)
    {
    case 0:
      if (dpdk_hqos_validate_mask (mask, n_subports_per_port) != 0)
	{
	  error = clib_error_return (0, "invalid subport ID mask "
				     "(n_subports_per_port = %u)",
				     n_subports_per_port);
	  goto done;
	}
      break;
    case 1:
      if (dpdk_hqos_validate_mask (mask, n_pipes_per_subport) != 0)
	{
	  error = clib_error_return (0, "invalid pipe ID mask "
				     "(n_pipes_per_subport = %u)",
				     n_pipes_per_subport);
	  goto done;
	}
      break;
    case 2:
    default:
      if (dpdk_hqos_validate_mask (mask, tctbl_size) != 0)
	{
	  error = clib_error_return (0, "invalid TC table index mask "
				     "(TC table size = %u)", tctbl_size);
	  goto done;
	}
    }

  /* Propagate packet field configuration to all workers */
  for (i = 0; i < worker_thread_count; i++)
    switch (id)
      {
      case 0:
	xd->hqos_wt[worker_thread_first + i].hqos_field0_slabpos = offset;
	xd->hqos_wt[worker_thread_first + i].hqos_field0_slabmask = mask;
	xd->hqos_wt[worker_thread_first + i].hqos_field0_slabshr =
	  count_trailing_zeros (mask);
	break;
      case 1:
	xd->hqos_wt[worker_thread_first + i].hqos_field1_slabpos = offset;
	xd->hqos_wt[worker_thread_first + i].hqos_field1_slabmask = mask;
	xd->hqos_wt[worker_thread_first + i].hqos_field1_slabshr =
	  count_trailing_zeros (mask);
	break;
      case 2:
      default:
	xd->hqos_wt[worker_thread_first + i].hqos_field2_slabpos = offset;
	xd->hqos_wt[worker_thread_first + i].hqos_field2_slabmask = mask;
	xd->hqos_wt[worker_thread_first + i].hqos_field2_slabshr =
	  count_trailing_zeros (mask);
      }

done:
  unformat_free (line_input);

  return error;
}

/*?
 * This command is used to set the packet fields required for classifiying the
 * incoming packet. As a result of classification process, packet field
 * information will be mapped to 5 tuples (subport, pipe, traffic class, pipe,
 * color) and stored in packet mbuf.
 *
 * This command has the following parameters:
 *
 * - <b><interface></b> - Used to specify the output interface.
 *
 * - <b>id subport|pipe|tc</b> - Classification occurs across three fields.
 * This parameter indicates which of the three masks are being configured. Legacy
 * code used 0-2 to represent these three fields, so 0-2 is still accepted.
 *   - <b>subport|0</b> - Currently only one subport is supported, so only
 * an empty mask is supported for the subport classification.
 *   - <b>pipe|1</b> - Currently, 4096 pipes per subport are supported, so a
 * 12-bit mask should be configure to map to the 0-4095 pipes.
 *   - <b>tc|2</b> - The translation table (see '<em>set dpdk interface hqos
 * tctbl</em>' command) maps each value (0-63) into one of the 4 traffic classes
 * per pipe. A 6-bit mask should be configure to map this field to a traffic class.
 *
 * - <b>offset <n></b> - Offset in the packet to apply the 64-bit mask for classification.
 * The offset should be on an 8-byte boundary (0,8,16,24..).
 *
 * - <b>mask <hex-mask></b> - 64-bit mask to apply to packet at the given '<em>offset</em>'.
 * Bits must be contiguous and should not include '<em>0x</em>'.
 *
 * The default values for the '<em>pktfield</em>' assumes Ethernet/IPv4/UDP packets with
 * no VLAN. Adjust based on expected packet format and desired classification field.
 * - '<em>subport</em>' is always empty (offset 0 mask 0000000000000000)
 * - By default, '<em>pipe</em>' maps to the UDP payload bits 12 .. 23 (offset 40
 * mask 0000000fff000000)
 * - By default, '<em>tc</em>' maps to the DSCP field in IP header (offset 48 mask
 * 00000000000000fc)
 *
 * @cliexpar
 * Example of how modify the '<em>pipe</em>' classification filter to match VLAN:
 * @cliexcmd{set dpdk interface hqos pktfield GigabitEthernet0/8/0 id pipe offset 8 mask 0000000000000FFF}
?*/
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (cmd_set_dpdk_if_hqos_pktfield, static) = {
  .path = "set dpdk interface hqos pktfield",
  .short_help = "set dpdk interface hqos pktfield <interface> id subport|pipe|tc offset <n> "
                 "mask <hex-mask>",
  .function = set_dpdk_if_hqos_pktfield,
};
/* *INDENT-ON* */

static clib_error_t *
show_dpdk_if_hqos (vlib_main_t * vm, unformat_input_t * input,
		   vlib_cli_command_t * cmd)
{
  unformat_input_t _line_input, *line_input = &_line_input;
  vlib_thread_main_t *tm = vlib_get_thread_main ();
  dpdk_main_t *dm = &dpdk_main;
  vnet_hw_interface_t *hw;
  dpdk_device_t *xd;
  dpdk_device_config_hqos_t *cfg;
  dpdk_device_hqos_per_hqos_thread_t *ht;
  dpdk_device_hqos_per_worker_thread_t *wk;
  u32 *tctbl;
  u32 hw_if_index = (u32) ~ 0;
  u32 profile_id, subport_id, i;
  struct rte_eth_dev_info dev_info;
  struct rte_pci_device *pci_dev;
  dpdk_device_config_t *devconf = 0;
  vlib_thread_registration_t *tr;
  uword *p = 0;
  clib_error_t *error = NULL;

  if (!unformat_user (input, unformat_line_input, line_input))
    return 0;

  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
    {
      if (unformat
	  (line_input, "%U", unformat_vnet_hw_interface, dm->vnet_main,
	   &hw_if_index))
	;
      else
	{
	  error = clib_error_return (0, "parse error: '%U'",
				     format_unformat_error, line_input);
	  goto done;
	}
    }

  if (hw_if_index == (u32) ~ 0)
    {
      error = clib_error_return (0, "please specify interface name!!");
      goto done;
    }

  hw = vnet_get_hw_interface (dm->vnet_main, hw_if_index);
  xd = vec_elt_at_index (dm->devices, hw->dev_instance);

  rte_eth_dev_info_get (xd->port_id, &dev_info);

#if RTE_VERSION < RTE_VERSION_NUM(18, 5, 0, 0)
  pci_dev = dev_info.pci_dev;
#else
  pci_dev = RTE_DEV_TO_PCI (dev_info.device);
#endif

  if (pci_dev)
    {				/* bonded interface has no pci info */
      vlib_pci_addr_t pci_addr;

      pci_addr.domain = pci_dev->addr.domain;
      pci_addr.bus = pci_dev->addr.bus;
      pci_addr.slot = pci_dev->addr.devid;
      pci_addr.function = pci_dev->addr.function;

      p =
	hash_get (dm->conf->device_config_index_by_pci_addr, pci_addr.as_u32);
    }

  if (p)
    devconf = pool_elt_at_index (dm->conf->dev_confs, p[0]);
  else
    devconf = &dm->conf->default_devconf;

  if (devconf->hqos_enabled == 0)
    {
      vlib_cli_output (vm, "HQoS disabled for this interface");
      goto done;
    }

  /* Detect the set of worker threads */
  p = hash_get_mem (tm->thread_registrations_by_name, "workers");

  /* Should never happen, shut up Coverity warning */
  if (p == 0)
    {
      error = clib_error_return (0, "no worker registrations?");
      goto done;
    }

  tr = (vlib_thread_registration_t *) p[0];

  cfg = &devconf->hqos;
  ht = xd->hqos_ht;
  wk = &xd->hqos_wt[tr->first_index];
  tctbl = wk->hqos_tc_table;

  vlib_cli_output (vm, " Thread:");
  vlib_cli_output (vm, "   Input SWQ size = %u packets", cfg->swq_size);
  vlib_cli_output (vm, "   Enqueue burst size = %u packets",
		   ht->hqos_burst_enq);
  vlib_cli_output (vm, "   Dequeue burst size = %u packets",
		   ht->hqos_burst_deq);

  vlib_cli_output (vm,
		   "   Packet field 0: slab position = %4u, slab bitmask = 0x%016llx   (subport)",
		   wk->hqos_field0_slabpos, wk->hqos_field0_slabmask);
  vlib_cli_output (vm,
		   "   Packet field 1: slab position = %4u, slab bitmask = 0x%016llx   (pipe)",
		   wk->hqos_field1_slabpos, wk->hqos_field1_slabmask);
  vlib_cli_output (vm,
		   "   Packet field 2: slab position = %4u, slab bitmask = 0x%016llx   (tc)",
		   wk->hqos_field2_slabpos, wk->hqos_field2_slabmask);
  vlib_cli_output (vm,
		   "   Packet field 2  tc translation table: ([Mapped Value Range]: tc/queue tc/queue ...)");
  vlib_cli_output (vm,
		   "     [ 0 .. 15]: "
		   "%u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u",
		   tctbl[0] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[0] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[1] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[1] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[2] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[2] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[3] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[3] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[4] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[4] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[5] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[5] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[6] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[6] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[7] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[7] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[8] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[8] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[9] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[9] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[10] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[10] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[11] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[11] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[12] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[12] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[13] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[13] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[14] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[14] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[15] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[15] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS);
  vlib_cli_output (vm,
		   "     [16 .. 31]: "
		   "%u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u",
		   tctbl[16] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[16] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[17] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[17] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[18] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[18] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[19] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[19] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[20] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[20] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[21] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[21] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[22] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[22] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[23] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[23] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[24] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[24] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[25] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[25] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[26] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[26] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[27] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[27] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[28] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[28] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[29] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[29] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[30] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[30] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[31] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[31] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS);
  vlib_cli_output (vm,
		   "     [32 .. 47]: "
		   "%u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u",
		   tctbl[32] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[32] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[33] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[33] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[34] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[34] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[35] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[35] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[36] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[36] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[37] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[37] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[38] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[38] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[39] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[39] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[40] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[40] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[41] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[41] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[42] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[42] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[43] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[43] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[44] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[44] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[45] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[45] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[46] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[46] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[47] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[47] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS);
  vlib_cli_output (vm,
		   "     [48 .. 63]: "
		   "%u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u %u/%u",
		   tctbl[48] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[48] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[49] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[49] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[50] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[50] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[51] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[51] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[52] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[52] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[53] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[53] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[54] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[54] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[55] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[55] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[56] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[56] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[57] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[57] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[58] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[58] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[59] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[59] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[60] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[60] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[61] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[61] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[62] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[62] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[63] / RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS,
		   tctbl[63] % RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS);
  vlib_cli_output (vm, " Port:");
  vlib_cli_output (vm, "   Rate = %u bytes/second", cfg->port.rate);
  vlib_cli_output (vm, "   MTU = %u bytes", cfg->port.mtu);
  vlib_cli_output (vm, "   Frame overhead = %u bytes",
		   cfg->port.frame_overhead);
  vlib_cli_output (vm, "   Number of subports = %u",
		   cfg->port.n_subports_per_port);
  vlib_cli_output (vm, "   Number of pipes per subport = %u",
		   cfg->port.n_pipes_per_subport);
  vlib_cli_output (vm,
		   "   Packet queue size: TC0 = %u, TC1 = %u, TC2 = %u, TC3 = %u packets",
		   cfg->port.qsize[0], cfg->port.qsize[1], cfg->port.qsize[2],
		   cfg->port.qsize[3]);
  vlib_cli_output (vm, "   Number of pipe profiles = %u",
		   cfg->port.n_pipe_profiles);

  for (subport_id = 0; subport_id < vec_len (cfg->subport); subport_id++)
    {
      vlib_cli_output (vm, " Subport %u:", subport_id);
      vlib_cli_output (vm, "   Rate = %u bytes/second",
		       cfg->subport[subport_id].tb_rate);
      vlib_cli_output (vm, "   Token bucket size = %u bytes",
		       cfg->subport[subport_id].tb_size);
      vlib_cli_output (vm,
		       "   Traffic class rate: TC0 = %u, TC1 = %u, TC2 = %u, TC3 = %u bytes/second",
		       cfg->subport[subport_id].tc_rate[0],
		       cfg->subport[subport_id].tc_rate[1],
		       cfg->subport[subport_id].tc_rate[2],
		       cfg->subport[subport_id].tc_rate[3]);
      vlib_cli_output (vm, "   TC period = %u milliseconds",
		       cfg->subport[subport_id].tc_period);
    }

  for (profile_id = 0; profile_id < vec_len (cfg->pipe); profile_id++)
    {
      vlib_cli_output (vm, " Pipe profile %u:", profile_id);
      vlib_cli_output (vm, "   Rate = %u bytes/second",
		       cfg->pipe[profile_id].tb_rate);
      vlib_cli_output (vm, "   Token bucket size = %u bytes",
		       cfg->pipe[profile_id].tb_size);
      vlib_cli_output (vm,
		       "   Traffic class rate: TC0 = %u, TC1 = %u, TC2 = %u, TC3 = %u bytes/second",
		       cfg->pipe[profile_id].tc_rate[0],
		       cfg->pipe[profile_id].tc_rate[1],
		       cfg->pipe[profile_id].tc_rate[2],
		       cfg->pipe[profile_id].tc_rate[3]);
      vlib_cli_output (vm, "   TC period = %u milliseconds",
		       cfg->pipe[profile_id].tc_period);
#ifdef RTE_SCHED_SUBPORT_TC_OV
      vlib_cli_output (vm, "   TC3 oversubscription_weight = %u",
		       cfg->pipe[profile_id].tc_ov_weight);
#endif

      for (i = 0; i < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; i++)
	{
	  vlib_cli_output (vm,
			   "   TC%u WRR weights: Q0 = %u, Q1 = %u, Q2 = %u, Q3 = %u",
			   i, cfg->pipe[profile_id].wrr_weights[i * 4],
			   cfg->pipe[profile_id].wrr_weights[i * 4 + 1],
			   cfg->pipe[profile_id].wrr_weights[i * 4 + 2],
			   cfg->pipe[profile_id].wrr_weights[i * 4 + 3]);
	}
    }

#ifdef RTE_SCHED_RED
  vlib_cli_output (vm, " Weighted Random Early Detection (WRED):");
  for (i = 0; i < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; i++)
    {
      vlib_cli_output (vm, "   TC%u min: G = %u, Y = %u, R = %u", i,
		       cfg->port.red_params[i][e_RTE_METER_GREEN].min_th,
		       cfg->port.red_params[i][e_RTE_METER_YELLOW].min_th,
		       cfg->port.red_params[i][e_RTE_METER_RED].min_th);

      vlib_cli_output (vm, "   TC%u max: G = %u, Y = %u, R = %u", i,
		       cfg->port.red_params[i][e_RTE_METER_GREEN].max_th,
		       cfg->port.red_params[i][e_RTE_METER_YELLOW].max_th,
		       cfg->port.red_params[i][e_RTE_METER_RED].max_th);

      vlib_cli_output (vm,
		       "   TC%u inverted probability: G = %u, Y = %u, R = %u",
		       i, cfg->port.red_params[i][e_RTE_METER_GREEN].maxp_inv,
		       cfg->port.red_params[i][e_RTE_METER_YELLOW].maxp_inv,
		       cfg->port.red_params[i][e_RTE_METER_RED].maxp_inv);

      vlib_cli_output (vm, "   TC%u weight: R = %u, Y = %u, R = %u", i,
		       cfg->port.red_params[i][e_RTE_METER_GREEN].wq_log2,
		       cfg->port.red_params[i][e_RTE_METER_YELLOW].wq_log2,
		       cfg->port.red_params[i][e_RTE_METER_RED].wq_log2);
    }
#endif

done:
  unformat_free (line_input);

  return error;
}

/*?
 * This command is used to display details of an output interface's HQoS
 * settings.
 *
 * @cliexpar
 * Example of how to display HQoS settings for an interfaces:
 * @cliexstart{show dpdk interface hqos GigabitEthernet0/8/0}
 *  Thread:
 *    Input SWQ size = 4096 packets
 *    Enqueue burst size = 256 packets
 *    Dequeue burst size = 220 packets
 *    Packet field 0: slab position =    0, slab bitmask = 0x0000000000000000   (subport)
 *    Packet field 1: slab position =   40, slab bitmask = 0x0000000fff000000   (pipe)
 *    Packet field 2: slab position =    8, slab bitmask = 0x00000000000000fc   (tc)
 *    Packet field 2  tc translation table: ([Mapped Value Range]: tc/queue tc/queue ...)
 *      [ 0 .. 15]: 0/0 0/1 0/2 0/3 1/0 1/1 1/2 1/3 2/0 2/1 2/2 2/3 3/0 3/1 3/2 3/3
 *      [16 .. 31]: 0/0 0/1 0/2 0/3 1/0 1/1 1/2 1/3 2/0 2/1 2/2 2/3 3/0 3/1 3/2 3/3
 *      [32 .. 47]: 0/0 0/1 0/2 0/3 1/0 1/1 1/2 1/3 2/0 2/1 2/2 2/3 3/0 3/1 3/2 3/3
 *      [48 .. 63]: 0/0 0/1 0/2 0/3 1/0 1/1 1/2 1/3 2/0 2/1 2/2 2/3 3/0 3/1 3/2 3/3
 *  Port:
 *    Rate = 1250000000 bytes/second
 *    MTU = 1514 bytes
 *    Frame overhead = 24 bytes
 *    Number of subports = 1
 *    Number of pipes per subport = 4096
 *    Packet queue size: TC0 = 64, TC1 = 64, TC2 = 64, TC3 = 64 packets
 *    Number of pipe profiles = 2
 *  Subport 0:
 *    Rate = 1250000000 bytes/second
 *    Token bucket size = 1000000 bytes
 *    Traffic class rate: TC0 = 1250000000, TC1 = 1250000000, TC2 = 1250000000, TC3 = 1250000000 bytes/second
 *    TC period = 10 milliseconds
 *  Pipe profile 0:
 *    Rate = 305175 bytes/second
 *    Token bucket size = 1000000 bytes
 *    Traffic class rate: TC0 = 305175, TC1 = 305175, TC2 = 305175, TC3 = 305175 bytes/second
 *    TC period = 40 milliseconds
 *    TC0 WRR weights: Q0 = 1, Q1 = 1, Q2 = 1, Q3 = 1
 *    TC1 WRR weights: Q0 = 1, Q1 = 1, Q2 = 1, Q3 = 1
 *    TC2 WRR weights: Q0 = 1, Q1 = 1, Q2 = 1, Q3 = 1
 *    TC3 WRR weights: Q0 = 1, Q1 = 1, Q2 = 1, Q3 = 1
 * @cliexend
?*/
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (cmd_show_dpdk_if_hqos, static) = {
  .path = "show dpdk interface hqos",
  .short_help = "show dpdk interface hqos <interface>",
  .function = show_dpdk_if_hqos,
};

/* *INDENT-ON* */

static clib_error_t *
show_dpdk_hqos_queue_stats (vlib_main_t * vm, unformat_input_t * input,
			    vlib_cli_command_t * cmd)
{
  unformat_input_t _line_input, *line_input = &_line_input;
  clib_error_t *error = NULL;
#ifdef RTE_SCHED_COLLECT_STATS
  dpdk_main_t *dm = &dpdk_main;
  u32 hw_if_index = (u32) ~ 0;
  u32 subport = (u32) ~ 0;
  u32 pipe = (u32) ~ 0;
  u32 tc = (u32) ~ 0;
  u32 tc_q = (u32) ~ 0;
  vnet_hw_interface_t *hw;
  dpdk_device_t *xd;
  uword *p = 0;
  struct rte_eth_dev_info dev_info;
  dpdk_device_config_t *devconf = 0;
  u32 qindex;
  struct rte_sched_queue_stats stats;
  u16 qlen;

  if (!unformat_user (input, unformat_line_input, line_input))
    return 0;

  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
    {
      if (unformat
	  (line_input, "%U", unformat_vnet_hw_interface, dm->vnet_main,
	   &hw_if_index))
	;

      else if (unformat (line_input, "subport %d", &subport))
	;

      else if (unformat (line_input, "pipe %d", &pipe))
	;

      else if (unformat (line_input, "tc %d", &tc))
	;

      else if (unformat (line_input, "tc_q %d", &tc_q))
	;

      else
	{
	  error = clib_error_return (0, "parse error: '%U'",
				     format_unformat_error, line_input);
	  goto done;
	}
    }

  if (hw_if_index == (u32) ~ 0)
    {
      error = clib_error_return (0, "please specify interface name!!");
      goto done;
    }

  hw = vnet_get_hw_interface (dm->vnet_main, hw_if_index);
  xd = vec_elt_at_index (dm->devices, hw->dev_instance);

  rte_eth_dev_info_get (xd->port_id, &dev_info);
  if (dev_info.pci_dev)
    {				/* bonded interface has no pci info */
      vlib_pci_addr_t pci_addr;

      pci_addr.domain = dev_info.pci_dev->addr.domain;
      pci_addr.bus = dev_info.pci_dev->addr.bus;
      pci_addr.slot = dev_info.pci_dev->addr.devid;
      pci_addr.function = dev_info.pci_dev->addr.function;

      p =
	hash_get (dm->conf->device_config_index_by_pci_addr, pci_addr.as_u32);
    }

  if (p)
    devconf = pool_elt_at_index (dm->conf->dev_confs, p[0]);
  else
    devconf = &dm->conf->default_devconf;

  if (devconf->hqos_enabled == 0)
    {
      vlib_cli_output (vm, "HQoS disabled for this interface");
      goto done;
    }

  /*
   * Figure out which queue to query.  cf rte_sched_port_qindex.  (Not sure why
   * that method isn't made public by DPDK - how _should_ we get the queue ID?)
   */
  qindex = subport * devconf->hqos.port.n_pipes_per_subport + pipe;
  qindex = qindex * RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE + tc;
  qindex = qindex * RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS + tc_q;

  if (rte_sched_queue_read_stats (xd->hqos_ht->hqos, qindex, &stats, &qlen) !=
      0)
    {
      error = clib_error_return (0, "failed to read stats");
      goto done;
    }

  vlib_cli_output (vm, "%=24s%=16s", "Stats Parameter", "Value");
  vlib_cli_output (vm, "%=24s%=16d", "Packets", stats.n_pkts);
  vlib_cli_output (vm, "%=24s%=16d", "Packets dropped", stats.n_pkts_dropped);
#ifdef RTE_SCHED_RED
  vlib_cli_output (vm, "%=24s%=16d", "Packets dropped (RED)",
		   stats.n_pkts_red_dropped);
#endif
  vlib_cli_output (vm, "%=24s%=16d", "Bytes", stats.n_bytes);
  vlib_cli_output (vm, "%=24s%=16d", "Bytes dropped", stats.n_bytes_dropped);

#else

  /* Get a line of input */
  if (!unformat_user (input, unformat_line_input, line_input))
    return 0;

  vlib_cli_output (vm, "RTE_SCHED_COLLECT_STATS disabled in DPDK");
  goto done;

#endif

done:
  unformat_free (line_input);

  return error;
}

/*?
 * This command is used to display statistics associated with a HQoS traffic class
 * queue.
 *
 * @note
 * Statistic collection by the scheduler is disabled by default in DPDK. In order to
 * turn it on, add the following line to '<em>../vpp/dpdk/Makefile</em>':
 * - <b>$(call set,RTE_SCHED_COLLECT_STATS,y)</b>
 *
 * @cliexpar
 * Example of how to display statistics of HQoS a HQoS traffic class queue:
 * @cliexstart{show dpdk hqos queue GigabitEthernet0/9/0 subport 0 pipe 3181 tc 0 tc_q 0}
 *      Stats Parameter          Value
 *          Packets               140
 *      Packets dropped            0
 *           Bytes               8400
 *       Bytes dropped             0
 * @cliexend
?*/
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (cmd_show_dpdk_hqos_queue_stats, static) = {
  .path = "show dpdk hqos queue",
  .short_help = "show dpdk hqos queue <interface> subport <subport_id> pipe <pipe_id> tc <tc_id> tc_q <queue_id>",
  .function = show_dpdk_hqos_queue_stats,
};
/* *INDENT-ON* */

static clib_error_t *
show_dpdk_version_command_fn (vlib_main_t * vm,
			      unformat_input_t * input,
			      vlib_cli_command_t * cmd)
{
#define _(a,b,c) vlib_cli_output (vm, "%-25s " b, a ":", c);
  _("DPDK Version", "%s", rte_version ());
  _("DPDK EAL init args", "%s", dpdk_config_main.eal_init_args_str);
#undef _
  return 0;
}

/*?
 * This command is used to display the current DPDK version and
 * the list of arguments passed to DPDK when started.
 *
 * @cliexpar
 * Example of how to display how many DPDK buffer test command has allcoated:
 * @cliexstart{show dpdk version}
 * DPDK Version:        DPDK 16.11.0
 * DPDK EAL init args:  -c 1 -n 4 --huge-dir /run/vpp/hugepages --file-prefix vpp -w 0000:00:08.0 -w 0000:00:09.0 --master-lcore 0 --socket-mem 256
 * @cliexend
?*/
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (show_vpe_version_command, static) = {
  .path = "show dpdk version",
  .short_help = "show dpdk version",
  .function = show_dpdk_version_command_fn,
};
/* *INDENT-ON* */

#if CLI_DEBUG

static clib_error_t *
dpdk_validate_buffers_fn (vlib_main_t * vm, unformat_input_t * input,
			  vlib_cli_command_t * cmd_arg)
{
  u32 n_invalid_bufs = 0, uninitialized = 0;
  u32 is_poison = 0, is_test = 0;
  while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
    {
      if (unformat (input, "poison"))
	is_poison = 1;
      else if (unformat (input, "trajectory"))
	is_test = 1;
      else
	return clib_error_return (0, "unknown input `%U'",
				  format_unformat_error, input);
    }

  if (VLIB_BUFFER_TRACE_TRAJECTORY == 0)
    {
      vlib_cli_output (vm, "Trajectory not enabled. Recompile with "
		       "VLIB_BUFFER_TRACE_TRAJECTORY 1");
      return 0;
    }
  if (is_poison)
    {
      dpdk_buffer_poison_trajectory_all ();
    }
  if (is_test)
    {
      n_invalid_bufs = dpdk_buffer_validate_trajectory_all (&uninitialized);
      if (!n_invalid_bufs)
	vlib_cli_output (vm, "All buffers are valid %d uninitialized",
			 uninitialized);
      else
	vlib_cli_output (vm, "Found %d invalid buffers and %d uninitialized",
			 n_invalid_bufs, uninitialized);
    }
  return 0;
}

/* *INDENT-OFF* */
VLIB_CLI_COMMAND (test_dpdk_buffers_command, static) =
{
  .path = "test dpdk buffers",
  .short_help = "test dpdk buffers [poison] [trajectory]",
  .function = dpdk_validate_buffers_fn,
};
/* *INDENT-ON* */

#endif

clib_error_t *
dpdk_cli_init (vlib_main_t * vm)
{
  return 0;
}

VLIB_INIT_FUNCTION (dpdk_cli_init);

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */