0001 .. SPDX-License-Identifier: GPL-2.0
0002
0003 ======================================
0004 Texas Instruments CPSW ethernet driver
0005 ======================================
0006
0007 Multiqueue & CBS & MQPRIO
0008 =========================
0009
0010
0011 The cpsw has 3 CBS shapers for each external ports. This document
0012 describes MQPRIO and CBS Qdisc offload configuration for cpsw driver
0013 based on examples. It potentially can be used in audio video bridging
0014 (AVB) and time sensitive networking (TSN).
0015
0016 The following examples were tested on AM572x EVM and BBB boards.
0017
0018 Test setup
0019 ==========
0020
0021 Under consideration two examples with AM572x EVM running cpsw driver
0022 in dual_emac mode.
0023
0024 Several prerequisites:
0025
0026 - TX queues must be rated starting from txq0 that has highest priority
0027 - Traffic classes are used starting from 0, that has highest priority
0028 - CBS shapers should be used with rated queues
0029 - The bandwidth for CBS shapers has to be set a little bit more then
0030 potential incoming rate, thus, rate of all incoming tx queues has
0031 to be a little less
0032 - Real rates can differ, due to discreetness
0033 - Map skb-priority to txq is not enough, also skb-priority to l2 prio
0034 map has to be created with ip or vconfig tool
0035 - Any l2/socket prio (0 - 7) for classes can be used, but for
0036 simplicity default values are used: 3 and 2
0037 - only 2 classes tested: A and B, but checked and can work with more,
0038 maximum allowed 4, but only for 3 rate can be set.
0039
0040 Test setup for examples
0041 =======================
0042
0043 ::
0044
0045 +-------------------------------+
0046 |--+ |
0047 | | Workstation0 |
0048 |E | MAC 18:03:73:66:87:42 |
0049 +-----------------------------+ +--|t | |
0050 | | 1 | E | | |h |./tsn_listener -d \ |
0051 | Target board: | 0 | t |--+ |0 | 18:03:73:66:87:42 -i eth0 \|
0052 | AM572x EVM | 0 | h | | | -s 1500 |
0053 | | 0 | 0 | |--+ |
0054 | Only 2 classes: |Mb +---| +-------------------------------+
0055 | class A, class B | |
0056 | | +---| +-------------------------------+
0057 | | 1 | E | |--+ |
0058 | | 0 | t | | | Workstation1 |
0059 | | 0 | h |--+ |E | MAC 20:cf:30:85:7d:fd |
0060 | |Mb | 1 | +--|t | |
0061 +-----------------------------+ |h |./tsn_listener -d \ |
0062 |0 | 20:cf:30:85:7d:fd -i eth0 \|
0063 | | -s 1500 |
0064 |--+ |
0065 +-------------------------------+
0066
0067
0068 Example 1: One port tx AVB configuration scheme for target board
0069 ----------------------------------------------------------------
0070
0071 (prints and scheme for AM572x evm, applicable for single port boards)
0072
0073 - tc - traffic class
0074 - txq - transmit queue
0075 - p - priority
0076 - f - fifo (cpsw fifo)
0077 - S - shaper configured
0078
0079 ::
0080
0081 +------------------------------------------------------------------+ u
0082 | +---------------+ +---------------+ +------+ +------+ | s
0083 | | | | | | | | | | e
0084 | | App 1 | | App 2 | | Apps | | Apps | | r
0085 | | Class A | | Class B | | Rest | | Rest | |
0086 | | Eth0 | | Eth0 | | Eth0 | | Eth1 | | s
0087 | | VLAN100 | | VLAN100 | | | | | | | | p
0088 | | 40 Mb/s | | 20 Mb/s | | | | | | | | a
0089 | | SO_PRIORITY=3 | | SO_PRIORITY=2 | | | | | | | | c
0090 | | | | | | | | | | | | | | e
0091 | +---|-----------+ +---|-----------+ +---|--+ +---|--+ |
0092 +-----|------------------|------------------|--------|-------------+
0093 +-+ +------------+ | |
0094 | | +-----------------+ +--+
0095 | | | |
0096 +---|-------|-------------|-----------------------|----------------+
0097 | +----+ +----+ +----+ +----+ +----+ |
0098 | | p3 | | p2 | | p1 | | p0 | | p0 | | k
0099 | \ / \ / \ / \ / \ / | e
0100 | \ / \ / \ / \ / \ / | r
0101 | \/ \/ \/ \/ \/ | n
0102 | | | | | | e
0103 | | | +-----+ | | l
0104 | | | | | |
0105 | +----+ +----+ +----+ +----+ | s
0106 | |tc0 | |tc1 | |tc2 | |tc0 | | p
0107 | \ / \ / \ / \ / | a
0108 | \ / \ / \ / \ / | c
0109 | \/ \/ \/ \/ | e
0110 | | | +-----+ | |
0111 | | | | | | |
0112 | | | | | | |
0113 | | | | | | |
0114 | +----+ +----+ +----+ +----+ +----+ |
0115 | |txq0| |txq1| |txq2| |txq3| |txq4| |
0116 | \ / \ / \ / \ / \ / |
0117 | \ / \ / \ / \ / \ / |
0118 | \/ \/ \/ \/ \/ |
0119 | +-|------|------|------|--+ +--|--------------+ |
0120 | | | | | | | Eth0.100 | | Eth1 | |
0121 +---|------|------|------|------------------------|----------------+
0122 | | | | |
0123 p p p p |
0124 3 2 0-1, 4-7 <- L2 priority |
0125 | | | | |
0126 | | | | |
0127 +---|------|------|------|------------------------|----------------+
0128 | | | | | |----------+ |
0129 | +----+ +----+ +----+ +----+ +----+ |
0130 | |dma7| |dma6| |dma5| |dma4| |dma3| |
0131 | \ / \ / \ / \ / \ / | c
0132 | \S / \S / \ / \ / \ / | p
0133 | \/ \/ \/ \/ \/ | s
0134 | | | | +----- | | w
0135 | | | | | | |
0136 | | | | | | | d
0137 | +----+ +----+ +----+p p+----+ | r
0138 | | | | | | |o o| | | i
0139 | | f3 | | f2 | | f0 |r r| f0 | | v
0140 | |tc0 | |tc1 | |tc2 |t t|tc0 | | e
0141 | \CBS / \CBS / \CBS /1 2\CBS / | r
0142 | \S / \S / \ / \ / |
0143 | \/ \/ \/ \/ |
0144 +------------------------------------------------------------------+
0145
0146
0147 1) ::
0148
0149
0150 // Add 4 tx queues, for interface Eth0, and 1 tx queue for Eth1
0151 $ ethtool -L eth0 rx 1 tx 5
0152 rx unmodified, ignoring
0153
0154 2) ::
0155
0156 // Check if num of queues is set correctly:
0157 $ ethtool -l eth0
0158 Channel parameters for eth0:
0159 Pre-set maximums:
0160 RX: 8
0161 TX: 8
0162 Other: 0
0163 Combined: 0
0164 Current hardware settings:
0165 RX: 1
0166 TX: 5
0167 Other: 0
0168 Combined: 0
0169
0170 3) ::
0171
0172 // TX queues must be rated starting from 0, so set bws for tx0 and tx1
0173 // Set rates 40 and 20 Mb/s appropriately.
0174 // Pay attention, real speed can differ a bit due to discreetness.
0175 // Leave last 2 tx queues not rated.
0176 $ echo 40 > /sys/class/net/eth0/queues/tx-0/tx_maxrate
0177 $ echo 20 > /sys/class/net/eth0/queues/tx-1/tx_maxrate
0178
0179 4) ::
0180
0181 // Check maximum rate of tx (cpdma) queues:
0182 $ cat /sys/class/net/eth0/queues/tx-*/tx_maxrate
0183 40
0184 20
0185 0
0186 0
0187 0
0188
0189 5) ::
0190
0191 // Map skb->priority to traffic class:
0192 // 3pri -> tc0, 2pri -> tc1, (0,1,4-7)pri -> tc2
0193 // Map traffic class to transmit queue:
0194 // tc0 -> txq0, tc1 -> txq1, tc2 -> (txq2, txq3)
0195 $ tc qdisc replace dev eth0 handle 100: parent root mqprio num_tc 3 \
0196 map 2 2 1 0 2 2 2 2 2 2 2 2 2 2 2 2 queues 1@0 1@1 2@2 hw 1
0197
0198 5a) ::
0199
0200 // As two interface sharing same set of tx queues, assign all traffic
0201 // coming to interface Eth1 to separate queue in order to not mix it
0202 // with traffic from interface Eth0, so use separate txq to send
0203 // packets to Eth1, so all prio -> tc0 and tc0 -> txq4
0204 // Here hw 0, so here still default configuration for eth1 in hw
0205 $ tc qdisc replace dev eth1 handle 100: parent root mqprio num_tc 1 \
0206 map 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 queues 1@4 hw 0
0207
0208 6) ::
0209
0210 // Check classes settings
0211 $ tc -g class show dev eth0
0212 +---(100:ffe2) mqprio
0213 | +---(100:3) mqprio
0214 | +---(100:4) mqprio
0215 |
0216 +---(100:ffe1) mqprio
0217 | +---(100:2) mqprio
0218 |
0219 +---(100:ffe0) mqprio
0220 +---(100:1) mqprio
0221
0222 $ tc -g class show dev eth1
0223 +---(100:ffe0) mqprio
0224 +---(100:5) mqprio
0225
0226 7) ::
0227
0228 // Set rate for class A - 41 Mbit (tc0, txq0) using CBS Qdisc
0229 // Set it +1 Mb for reserve (important!)
0230 // here only idle slope is important, others arg are ignored
0231 // Pay attention, real speed can differ a bit due to discreetness
0232 $ tc qdisc add dev eth0 parent 100:1 cbs locredit -1438 \
0233 hicredit 62 sendslope -959000 idleslope 41000 offload 1
0234 net eth0: set FIFO3 bw = 50
0235
0236 8) ::
0237
0238 // Set rate for class B - 21 Mbit (tc1, txq1) using CBS Qdisc:
0239 // Set it +1 Mb for reserve (important!)
0240 $ tc qdisc add dev eth0 parent 100:2 cbs locredit -1468 \
0241 hicredit 65 sendslope -979000 idleslope 21000 offload 1
0242 net eth0: set FIFO2 bw = 30
0243
0244 9) ::
0245
0246 // Create vlan 100 to map sk->priority to vlan qos
0247 $ ip link add link eth0 name eth0.100 type vlan id 100
0248 8021q: 802.1Q VLAN Support v1.8
0249 8021q: adding VLAN 0 to HW filter on device eth0
0250 8021q: adding VLAN 0 to HW filter on device eth1
0251 net eth0: Adding vlanid 100 to vlan filter
0252
0253 10) ::
0254
0255 // Map skb->priority to L2 prio, 1 to 1
0256 $ ip link set eth0.100 type vlan \
0257 egress 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7
0258
0259 11) ::
0260
0261 // Check egress map for vlan 100
0262 $ cat /proc/net/vlan/eth0.100
0263 [...]
0264 INGRESS priority mappings: 0:0 1:0 2:0 3:0 4:0 5:0 6:0 7:0
0265 EGRESS priority mappings: 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7
0266
0267 12) ::
0268
0269 // Run your appropriate tools with socket option "SO_PRIORITY"
0270 // to 3 for class A and/or to 2 for class B
0271 // (I took at https://www.spinics.net/lists/netdev/msg460869.html)
0272 ./tsn_talker -d 18:03:73:66:87:42 -i eth0.100 -p3 -s 1500&
0273 ./tsn_talker -d 18:03:73:66:87:42 -i eth0.100 -p2 -s 1500&
0274
0275 13) ::
0276
0277 // run your listener on workstation (should be in same vlan)
0278 // (I took at https://www.spinics.net/lists/netdev/msg460869.html)
0279 ./tsn_listener -d 18:03:73:66:87:42 -i enp5s0 -s 1500
0280 Receiving data rate: 39012 kbps
0281 Receiving data rate: 39012 kbps
0282 Receiving data rate: 39012 kbps
0283 Receiving data rate: 39012 kbps
0284 Receiving data rate: 39012 kbps
0285 Receiving data rate: 39012 kbps
0286 Receiving data rate: 39012 kbps
0287 Receiving data rate: 39012 kbps
0288 Receiving data rate: 39012 kbps
0289 Receiving data rate: 39012 kbps
0290 Receiving data rate: 39012 kbps
0291 Receiving data rate: 39012 kbps
0292 Receiving data rate: 39000 kbps
0293
0294 14) ::
0295
0296 // Restore default configuration if needed
0297 $ ip link del eth0.100
0298 $ tc qdisc del dev eth1 root
0299 $ tc qdisc del dev eth0 root
0300 net eth0: Prev FIFO2 is shaped
0301 net eth0: set FIFO3 bw = 0
0302 net eth0: set FIFO2 bw = 0
0303 $ ethtool -L eth0 rx 1 tx 1
0304
0305 Example 2: Two port tx AVB configuration scheme for target board
0306 ----------------------------------------------------------------
0307
0308 (prints and scheme for AM572x evm, for dual emac boards only)
0309
0310 ::
0311
0312 +------------------------------------------------------------------+ u
0313 | +----------+ +----------+ +------+ +----------+ +----------+ | s
0314 | | | | | | | | | | | | e
0315 | | App 1 | | App 2 | | Apps | | App 3 | | App 4 | | r
0316 | | Class A | | Class B | | Rest | | Class B | | Class A | |
0317 | | Eth0 | | Eth0 | | | | | Eth1 | | Eth1 | | s
0318 | | VLAN100 | | VLAN100 | | | | | VLAN100 | | VLAN100 | | p
0319 | | 40 Mb/s | | 20 Mb/s | | | | | 10 Mb/s | | 30 Mb/s | | a
0320 | | SO_PRI=3 | | SO_PRI=2 | | | | | SO_PRI=3 | | SO_PRI=2 | | c
0321 | | | | | | | | | | | | | | | | | e
0322 | +---|------+ +---|------+ +---|--+ +---|------+ +---|------+ |
0323 +-----|-------------|-------------|---------|-------------|--------+
0324 +-+ +-------+ | +----------+ +----+
0325 | | +-------+------+ | |
0326 | | | | | |
0327 +---|-------|-------------|--------------|-------------|-------|---+
0328 | +----+ +----+ +----+ +----+ +----+ +----+ +----+ +----+ |
0329 | | p3 | | p2 | | p1 | | p0 | | p0 | | p1 | | p2 | | p3 | | k
0330 | \ / \ / \ / \ / \ / \ / \ / \ / | e
0331 | \ / \ / \ / \ / \ / \ / \ / \ / | r
0332 | \/ \/ \/ \/ \/ \/ \/ \/ | n
0333 | | | | | | | | e
0334 | | | +----+ +----+ | | | l
0335 | | | | | | | |
0336 | +----+ +----+ +----+ +----+ +----+ +----+ | s
0337 | |tc0 | |tc1 | |tc2 | |tc2 | |tc1 | |tc0 | | p
0338 | \ / \ / \ / \ / \ / \ / | a
0339 | \ / \ / \ / \ / \ / \ / | c
0340 | \/ \/ \/ \/ \/ \/ | e
0341 | | | +-----+ +-----+ | | |
0342 | | | | | | | | | |
0343 | | | | | | | | | |
0344 | | | | | E E | | | | |
0345 | +----+ +----+ +----+ +----+ t t +----+ +----+ +----+ +----+ |
0346 | |txq0| |txq1| |txq4| |txq5| h h |txq6| |txq7| |txq3| |txq2| |
0347 | \ / \ / \ / \ / 0 1 \ / \ / \ / \ / |
0348 | \ / \ / \ / \ / . . \ / \ / \ / \ / |
0349 | \/ \/ \/ \/ 1 1 \/ \/ \/ \/ |
0350 | +-|------|------|------|--+ 0 0 +-|------|------|------|--+ |
0351 | | | | | | | 0 0 | | | | | | |
0352 +---|------|------|------|---------------|------|------|------|----+
0353 | | | | | | | |
0354 p p p p p p p p
0355 3 2 0-1, 4-7 <-L2 pri-> 0-1, 4-7 2 3
0356 | | | | | | | |
0357 | | | | | | | |
0358 +---|------|------|------|---------------|------|------|------|----+
0359 | | | | | | | | | |
0360 | +----+ +----+ +----+ +----+ +----+ +----+ +----+ +----+ |
0361 | |dma7| |dma6| |dma3| |dma2| |dma1| |dma0| |dma4| |dma5| |
0362 | \ / \ / \ / \ / \ / \ / \ / \ / | c
0363 | \S / \S / \ / \ / \ / \ / \S / \S / | p
0364 | \/ \/ \/ \/ \/ \/ \/ \/ | s
0365 | | | | +----- | | | | | w
0366 | | | | | +----+ | | | |
0367 | | | | | | | | | | d
0368 | +----+ +----+ +----+p p+----+ +----+ +----+ | r
0369 | | | | | | |o o| | | | | | | i
0370 | | f3 | | f2 | | f0 |r CPSW r| f3 | | f2 | | f0 | | v
0371 | |tc0 | |tc1 | |tc2 |t t|tc0 | |tc1 | |tc2 | | e
0372 | \CBS / \CBS / \CBS /1 2\CBS / \CBS / \CBS / | r
0373 | \S / \S / \ / \S / \S / \ / |
0374 | \/ \/ \/ \/ \/ \/ |
0375 +------------------------------------------------------------------+
0376 ========================================Eth==========================>
0377
0378 1) ::
0379
0380 // Add 8 tx queues, for interface Eth0, but they are common, so are accessed
0381 // by two interfaces Eth0 and Eth1.
0382 $ ethtool -L eth1 rx 1 tx 8
0383 rx unmodified, ignoring
0384
0385 2) ::
0386
0387 // Check if num of queues is set correctly:
0388 $ ethtool -l eth0
0389 Channel parameters for eth0:
0390 Pre-set maximums:
0391 RX: 8
0392 TX: 8
0393 Other: 0
0394 Combined: 0
0395 Current hardware settings:
0396 RX: 1
0397 TX: 8
0398 Other: 0
0399 Combined: 0
0400
0401 3) ::
0402
0403 // TX queues must be rated starting from 0, so set bws for tx0 and tx1 for Eth0
0404 // and for tx2 and tx3 for Eth1. That is, rates 40 and 20 Mb/s appropriately
0405 // for Eth0 and 30 and 10 Mb/s for Eth1.
0406 // Real speed can differ a bit due to discreetness
0407 // Leave last 4 tx queues as not rated
0408 $ echo 40 > /sys/class/net/eth0/queues/tx-0/tx_maxrate
0409 $ echo 20 > /sys/class/net/eth0/queues/tx-1/tx_maxrate
0410 $ echo 30 > /sys/class/net/eth1/queues/tx-2/tx_maxrate
0411 $ echo 10 > /sys/class/net/eth1/queues/tx-3/tx_maxrate
0412
0413 4) ::
0414
0415 // Check maximum rate of tx (cpdma) queues:
0416 $ cat /sys/class/net/eth0/queues/tx-*/tx_maxrate
0417 40
0418 20
0419 30
0420 10
0421 0
0422 0
0423 0
0424 0
0425
0426 5) ::
0427
0428 // Map skb->priority to traffic class for Eth0:
0429 // 3pri -> tc0, 2pri -> tc1, (0,1,4-7)pri -> tc2
0430 // Map traffic class to transmit queue:
0431 // tc0 -> txq0, tc1 -> txq1, tc2 -> (txq4, txq5)
0432 $ tc qdisc replace dev eth0 handle 100: parent root mqprio num_tc 3 \
0433 map 2 2 1 0 2 2 2 2 2 2 2 2 2 2 2 2 queues 1@0 1@1 2@4 hw 1
0434
0435 6) ::
0436
0437 // Check classes settings
0438 $ tc -g class show dev eth0
0439 +---(100:ffe2) mqprio
0440 | +---(100:5) mqprio
0441 | +---(100:6) mqprio
0442 |
0443 +---(100:ffe1) mqprio
0444 | +---(100:2) mqprio
0445 |
0446 +---(100:ffe0) mqprio
0447 +---(100:1) mqprio
0448
0449 7) ::
0450
0451 // Set rate for class A - 41 Mbit (tc0, txq0) using CBS Qdisc for Eth0
0452 // here only idle slope is important, others ignored
0453 // Real speed can differ a bit due to discreetness
0454 $ tc qdisc add dev eth0 parent 100:1 cbs locredit -1470 \
0455 hicredit 62 sendslope -959000 idleslope 41000 offload 1
0456 net eth0: set FIFO3 bw = 50
0457
0458 8) ::
0459
0460 // Set rate for class B - 21 Mbit (tc1, txq1) using CBS Qdisc for Eth0
0461 $ tc qdisc add dev eth0 parent 100:2 cbs locredit -1470 \
0462 hicredit 65 sendslope -979000 idleslope 21000 offload 1
0463 net eth0: set FIFO2 bw = 30
0464
0465 9) ::
0466
0467 // Create vlan 100 to map sk->priority to vlan qos for Eth0
0468 $ ip link add link eth0 name eth0.100 type vlan id 100
0469 net eth0: Adding vlanid 100 to vlan filter
0470
0471 10) ::
0472
0473 // Map skb->priority to L2 prio for Eth0.100, one to one
0474 $ ip link set eth0.100 type vlan \
0475 egress 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7
0476
0477 11) ::
0478
0479 // Check egress map for vlan 100
0480 $ cat /proc/net/vlan/eth0.100
0481 [...]
0482 INGRESS priority mappings: 0:0 1:0 2:0 3:0 4:0 5:0 6:0 7:0
0483 EGRESS priority mappings: 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7
0484
0485 12) ::
0486
0487 // Map skb->priority to traffic class for Eth1:
0488 // 3pri -> tc0, 2pri -> tc1, (0,1,4-7)pri -> tc2
0489 // Map traffic class to transmit queue:
0490 // tc0 -> txq2, tc1 -> txq3, tc2 -> (txq6, txq7)
0491 $ tc qdisc replace dev eth1 handle 100: parent root mqprio num_tc 3 \
0492 map 2 2 1 0 2 2 2 2 2 2 2 2 2 2 2 2 queues 1@2 1@3 2@6 hw 1
0493
0494 13) ::
0495
0496 // Check classes settings
0497 $ tc -g class show dev eth1
0498 +---(100:ffe2) mqprio
0499 | +---(100:7) mqprio
0500 | +---(100:8) mqprio
0501 |
0502 +---(100:ffe1) mqprio
0503 | +---(100:4) mqprio
0504 |
0505 +---(100:ffe0) mqprio
0506 +---(100:3) mqprio
0507
0508 14) ::
0509
0510 // Set rate for class A - 31 Mbit (tc0, txq2) using CBS Qdisc for Eth1
0511 // here only idle slope is important, others ignored, but calculated
0512 // for interface speed - 100Mb for eth1 port.
0513 // Set it +1 Mb for reserve (important!)
0514 $ tc qdisc add dev eth1 parent 100:3 cbs locredit -1035 \
0515 hicredit 465 sendslope -69000 idleslope 31000 offload 1
0516 net eth1: set FIFO3 bw = 31
0517
0518 15) ::
0519
0520 // Set rate for class B - 11 Mbit (tc1, txq3) using CBS Qdisc for Eth1
0521 // Set it +1 Mb for reserve (important!)
0522 $ tc qdisc add dev eth1 parent 100:4 cbs locredit -1335 \
0523 hicredit 405 sendslope -89000 idleslope 11000 offload 1
0524 net eth1: set FIFO2 bw = 11
0525
0526 16) ::
0527
0528 // Create vlan 100 to map sk->priority to vlan qos for Eth1
0529 $ ip link add link eth1 name eth1.100 type vlan id 100
0530 net eth1: Adding vlanid 100 to vlan filter
0531
0532 17) ::
0533
0534 // Map skb->priority to L2 prio for Eth1.100, one to one
0535 $ ip link set eth1.100 type vlan \
0536 egress 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7
0537
0538 18) ::
0539
0540 // Check egress map for vlan 100
0541 $ cat /proc/net/vlan/eth1.100
0542 [...]
0543 INGRESS priority mappings: 0:0 1:0 2:0 3:0 4:0 5:0 6:0 7:0
0544 EGRESS priority mappings: 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7
0545
0546 19) ::
0547
0548 // Run appropriate tools with socket option "SO_PRIORITY" to 3
0549 // for class A and to 2 for class B. For both interfaces
0550 ./tsn_talker -d 18:03:73:66:87:42 -i eth0.100 -p2 -s 1500&
0551 ./tsn_talker -d 18:03:73:66:87:42 -i eth0.100 -p3 -s 1500&
0552 ./tsn_talker -d 20:cf:30:85:7d:fd -i eth1.100 -p2 -s 1500&
0553 ./tsn_talker -d 20:cf:30:85:7d:fd -i eth1.100 -p3 -s 1500&
0554
0555 20) ::
0556
0557 // run your listener on workstation (should be in same vlan)
0558 // (I took at https://www.spinics.net/lists/netdev/msg460869.html)
0559 ./tsn_listener -d 18:03:73:66:87:42 -i enp5s0 -s 1500
0560 Receiving data rate: 39012 kbps
0561 Receiving data rate: 39012 kbps
0562 Receiving data rate: 39012 kbps
0563 Receiving data rate: 39012 kbps
0564 Receiving data rate: 39012 kbps
0565 Receiving data rate: 39012 kbps
0566 Receiving data rate: 39012 kbps
0567 Receiving data rate: 39012 kbps
0568 Receiving data rate: 39012 kbps
0569 Receiving data rate: 39012 kbps
0570 Receiving data rate: 39012 kbps
0571 Receiving data rate: 39012 kbps
0572 Receiving data rate: 39000 kbps
0573
0574 21) ::
0575
0576 // Restore default configuration if needed
0577 $ ip link del eth1.100
0578 $ ip link del eth0.100
0579 $ tc qdisc del dev eth1 root
0580 net eth1: Prev FIFO2 is shaped
0581 net eth1: set FIFO3 bw = 0
0582 net eth1: set FIFO2 bw = 0
0583 $ tc qdisc del dev eth0 root
0584 net eth0: Prev FIFO2 is shaped
0585 net eth0: set FIFO3 bw = 0
0586 net eth0: set FIFO2 bw = 0
0587 $ ethtool -L eth0 rx 1 tx 1
