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Chapter II. Network (NIC/TOE)
Chelsio T5/T4 Unified Wire For Linux Page 57
GROPackets is the number of held packets. Those are candidate packets held by the kernel to
be processed individually or to be merged to larger packets. This number is usually zero.
GROMerged is the number of packets that merged to larger packets. Usually this number
increases if there is any continuous traffic stream present.
ethtool can also be used to switch off the GRO/LRO options when necessary:
[root@host]# ethtool -K eth6 gro off
[root@host]# ethtool -k eth6
Offload parameters for eth6:
rx-checksumming: on
tx-checksumming: on
scatter-gather: on
tcp-segmentation-offload: on
udp-fragmentation-offload: off
generic-segmentation-offload: on
generic-receive-offload: off
large-receive-offload: off
The output above shows a disabled GRO.
- Document History 3
- TABLE OF CONTENTS 4
- I. CHELSIO UNIFIED WIRE 12 4
- II. NETWORK (NIC/TOE) 47 4
- IV. IWARP (RDMA) 64 5
- V. WD-UDP 80 5
- VI. WD-TOE 91 5
- vii 7
- XVI. BYPASS DRIVER 216 8
- XXI. UNIFIED BOOT 387 10
- XXIII. APPENDIX A 455 11
- I. Chelsio Unified Wire 12
- 1. Introduction 13
- 1.2. Hardware Requirements 14
- 1.4. Package Contents 14
- Page 15 15
- 1.4.2. RPM package 16
- 2. Hardware Installation 17
- Page 18 18
- Page 19 19
- Configuration 20
- Tuning Option 20
- Description 20
- Driver/Software installed 20
- 3.1. Pre-requisites 21
- Page 22 22
- Page 23 23
- Page 24 24
- Page 25 25
- [root@host]# ./install.py 26
- [root@host]#./install.py –h 27
- 3.2.3. CLI mode 28
- Page 29 29
- Page 30 30
- Page 31 31
- 3.3.1. Menu Mode 32
- 3.3.2. CLI mode 33
- [root@host]# ./install.py –h 34
- 3.4. Firmware update 35
- Page 37 37
- 4.1.3. CLI mode 38
- Page 39 39
- Page 40 40
- Page 41 41
- Page 42 42
- Page 43 43
- Page 44 44
- 5.4. Checking Link 45
- 6. Software/Driver Update 46
- II. Network (NIC/TOE) 47
- 4.2. Performance tuning 52
- Page 53 53
- Page 54 54
- [root@host]# ethtool -h 55
- Page 56 56
- Page 57 57
- Page 58 58
- Page 63 63
- IV. iWARP (RDMA) 64
- Page 66 66
- [root@host]# make 67
- [root@host]# make install 67
- Page 69 69
- 4.2. Enabling various MPIs 70
- Intel-MPI 71
- Page 72 72
- Page 73 73
- Page 74 74
- Page 75 75
- 4.2.4. Building MPI tests 76
- Page 77 77
- 4.3. Setting up NFS-RDMA 78
- Page 79 79
- V. WD-UDP 80
- Page 82 82
- Page 85 85
- 4.1.2. Using libcxgb4_sock 86
- Page 87 87
- Page 88 88
- Page 89 89
- Page 90 90
- VI. WD-TOE 91
- Page 93 93
- Page 96 96
- Page 97 97
- 1.2.2. Adapter Requirements 100
- 1.2.3. Storage Requirements 100
- 1.3. Software Requirements 101
- Page 102 102
- 2. Software/Driver Loading 103
- Page 104 104
- Page 105 105
- 2.3.1. Linux Requirements 106
- Page 107 107
- 3. Software/Driver Unloading 108
- 4.1. Command Line Tools 109
- Page 110 110
- 4.3.2. Basic iSCSI Control 111
- Page 112 112
- Page 113 113
- specifies 119
- Page 121 121
- Page 122 122
- Page 123 123
- Page 124 124
- 4.6.1. ACL Enforcement 125
- 4.7.1. RAM Disk Details 126
- Page 127 127
- Page 128 128
- 4.9.1. iscsictl 129
- 4.9.2. chisns 129
- 4.9.3. iscsictl options 130
- 4.11.1. iscsi_offload_mode 135
- 4.11.2. iscsi_auth_order 136
- Page 137 137
- 1.2. Software Requirements 139
- Page 141 141
- Page 143 143
- 4.1.3. Discovery and Login 144
- Page 145 145
- Page 146 146
- Page 147 147
- Page 151 151
- Page 152 152
- Page 153 153
- Page 154 154
- Page 155 155
- Page 156 156
- X. FCoE PDU Offload Target 157
- Page 159 159
- Page 160 160
- Page 162 162
- Page 163 163
- Page 164 164
- Page 165 165
- Page 166 166
- Page 167 167
- Page 168 168
- Page 169 169
- Page 170 170
- Page 171 171
- Page 172 172
- 3.6. Removing LUNs 173
- 3.7. Performance tuning 173
- Page 174 174
- Page 175 175
- 4. Software/Driver Unloading 176
- Page 177 177
- 4.2.1. Verifying Local Ports 181
- Page 182 182
- Page 183 183
- Page 184 184
- [root@host]# lsscsi –g 185
- Page 186 186
- 4.4. Creating Filesystem 187
- Page 188 188
- XII. Offload Bonding driver 189
- Page 191 191
- Page 194 194
- Page 195 195
- Page 200 200
- Page 201 201
- Page 202 202
- 1.1. Hardware Requirements 204
- *Limited QA Performed 205
- Page 208 208
- Page 209 209
- 4.2. Configuring UDP Pacing 210
- XV. Offload IPv6 driver 211
- Page 213 213
- XVI. Bypass Driver 216
- 4.1. Starting ba server 222
- 4.2. Bypass API (CLI) 222
- 4.2.3. Bypass State 223
- 4.2.5. Redirect Management 224
- Command 225
- Page 227 227
- Page 228 228
- 1. Theory of Operation 229
- 2. Installation and Usage 232
- Page 233 233
- Page 234 234
- 2. Usage 237
- 2.2.1. Examples 238
- 2.3. Listing Filter Rules 239
- 2.4. Removing Filter Rules 239
- 2.5. Layer 3 example 240
- Page 241 241
- Page 242 242
- 2.6. Layer 2 example 243
- Page 244 244
- Page 245 245
- Page 246 246
- 3. Hash/DDR Filters 247
- 3.2. Listing Filter Rules 248
- 3.3. Removing Filter Rules 249
- 3.4. Swap MAC feature 249
- 3.5. Hit Counters 250
- Page 251 251
- XIX. Traffic Management 252
- 4.1.1. Class Rate Limiting 257
- Page 258 258
- Page 259 259
- Page 260 260
- Page 261 261
- 5. Usage 262
- Page 263 263
- Page 264 264
- 1.2. Reference Architecture 266
- CLI Client 267
- Web GUI Client 267
- 2. Hardware and Software 268
- 2.3. Platform/Driver Matrix 269
- Page 270 270
- Page 271 271
- Page 272 272
- 5. Management Agent 273
- 5.4. Firewall 274
- 6. CLI client 275
- 7. Web GUI client 276
- Page 277 277
- Page 278 278
- Page 279 279
- 7.3. Layout and Navigation 280
- 7.4. Home page 281
- Page 282 282
- Service Discovery 283
- Bulk Driver Installation 284
- 7.4.2. Add System 285
- 7.4.3. Remove System 286
- 7.4.4. Refresh 286
- 7.4.6. Bulk Configuration 287
- Manage Groups 288
- Boot Configuration 289
- Network Configuration 290
- Card Configuration 291
- Port Configuration 292
- Bypass Configuration 293
- 7.5. System page 294
- 7.5.2. Drivers Installation 295
- Page 296 296
- 7.5.3. Driver Details 297
- 7.5.4. System Diagnostics 298
- [root@host]# rmmod kvm 299
- [root@host]# rmmod cxgb4 299
- [root@host]# modprobe cxgb4 300
- Page 301 301
- Page 302 302
- 7.5.9. Xen Configurations 303
- 7.5.10. Xen VF Properties 304
- Page 305 305
- 7.6. Network page 306
- Page 307 307
- Page 308 308
- Page 309 309
- Card statistics 310
- Port summary 311
- Port settings 312
- Port statistics 313
- Page 314 314
- Page 315 315
- System network statistics 316
- Page 317 317
- Page 318 318
- Page 319 319
- Network troubleshooting 320
- Page 321 321
- 7.6.3.1. Hypervisor 322
- Xen Bridge Configuration 322
- Page 323 323
- Page 324 324
- Page 325 325
- Page 326 326
- Page 327 327
- Page 328 328
- 7.6.4. iWARP 329
- iWARP Settings 329
- Page 330 330
- Page 331 331
- 7.6.5. Wire Direct 332
- Page 333 333
- Page 334 334
- 7.7. Storage Page 335
- Page 336 336
- 7.7.1.2. FCoE Port 337
- FCoE Port Summary 337
- FCoE Port Attributes 338
- FCoE NPIV management 339
- 7.7.1.3. FCoE Remote Port 340
- Page 341 341
- 7.7.1.4. FCoE Virtual Port 342
- FCoE Virtual Port Summary 342
- Page 343 343
- Page 344 344
- Initiator nodes 345
- Page 346 346
- Page 347 347
- Discover targets 348
- Page 349 349
- Targets 350
- Page 351 351
- FO iSCSI Manage Ports 352
- Page 353 353
- FO iSCSI Manage Instances 354
- FO iSCSI Discover Details 355
- FO iSCSI Session Details 356
- Page 357 357
- 7.7.4. iSCSI Target (Linux) 358
- Target Stack Globals 358
- Target properties 359
- Page 360 360
- Session details 361
- New Target Creation 362
- 7.7.5. LUNs 363
- Add LUN 364
- 7.7.6. Portal Groups 365
- Add Portal 366
- 7.7.7. ACLs 367
- Add ACL 368
- 7.8. Hardware Features 369
- Page 370 370
- Page 371 371
- 7.8.3. Boot 372
- Page 373 373
- T5/T4 Boot Configuration 374
- Page 375 375
- Page 376 376
- Page 377 377
- Page 378 378
- Page 379 379
- 7.8.4. Bypass 380
- Redirect Configuration 381
- Page 382 382
- Page 383 383
- Egress Queue Map 384
- Egress Packet Scheduler 384
- Page 385 385
- Page 386 386
- XXI. Unified Boot 387
- 2.1. Using Flash Utility 390
- C:\CHELSIO>cfut4 –l 391
- Page 392 392
- Page 393 393
- 2.2. Using cxgbtool 394
- 3. Configuring PXE Server 395
- 4. PXE boot process 396
- Page 397 397
- Page 398 398
- Page 399 399
- Page 400 400
- 5. FCoE boot process 401
- Page 402 402
- Page 403 403
- Page 404 404
- Page 405 405
- Page 406 406
- Page 407 407
- Page 408 408
- Page 409 409
- 6. iSCSI boot process 410
- Page 411 411
- Page 412 412
- Page 413 413
- Page 414 414
- Page 415 415
- Page 416 416
- Page 417 417
- Page 418 418
- Page 419 419
- Page 420 420
- Page 421 421
- Page 422 422
- Page 423 423
- Page 424 424
- 8. OS Installation 425
- Page 426 426
- Page 427 427
- Page 428 428
- Page 429 429
- Page 430 430
- Page 431 431
- Page 432 432
- Page 433 433
- Page 434 434
- 8.2.1. Using CD/DVD ROM 435
- Page 436 436
- Page 437 437
- Page 438 438
- Page 439 439
- 8.3.1. Using CD/DVD ROM 440
- Page 441 441
- Page 442 442
- Page 443 443
- Page 444 444
- Page 445 445
- Page 446 446
- Page 447 447
- Page 448 448
- Chapter XXI. Unified Boot 449
- XXII. Lustre File System 450
- Page 453 453
- Page 454 454
- XXIII. Appendix A 455
- 1. Troubleshooting 456
- Page 457 457
- Chapter XXIII. Appendix 458
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