zhhyu7 opened a new pull request, #17692:
URL: https://github.com/apache/nuttx/pull/17692
## Summary
Decouple the impact of net_lock between network cards in multi-network card
scenarios.
Replace net_lock with smaller locks such as conn_lock, netdev_lock,
netdev_list_lock, and conn_list_lock to decouple the sending and receiving
processes between different network cards. In the scenario where multiple CAN
and Ethernet network cards are registered simultaneously on a single core,
ensure low latency and minimal jitter for data sending and receiving of CAN
network cards.
Since there are a relatively large number of code changes in the overall
modification, this PR only includes the complete partial code with logical
dependencies that has been verified locally. Subsequently, performance
optimization, code format optimization, and modifications to other
non-NIC-dependent protocols will be submitted through other PRs. This PR is a
minimal set that can ensure functional integrity, and removing any patch may
lead to issues with inadequate lock protection in the corresponding module.
The relevant code has been tested in the internal environment for about two
months.
## Impact
Network protocol stack and network card driver.
## Testing
sim:matter and cortex-m33 and Infineon board.
sim test log as below:
```
NuttShell (NSH) NuttX-12.11.0
MOTD: username=admin password=Administrator
nsh> ifconfig eth0 10.0.1.2/24
nsh> ifconfig
eth0 Link encap:Ethernet HWaddr 42:e1:c4:3f:48:dd at RUNNING mtu 1500
inet addr:10.0.1.2 DRaddr:10.0.1.1 Mask:255.255.255.0
inet6 addr: fe80::40e1:c4ff:fe3f:48dd/64
inet6 DRaddr: fe80::4000:d7ff:fe82:136b
IPv4 IPv6 TCP UDP ICMP ICMPv6 CAN
Received 0006 0011 0000 000e 0000 0009 0000
Dropped 0000 0000 0000 0000 0000 0007 0000
IPv4 VHL: 0000 Frg: 0000
IPv6 VHL: 0000
Checksum 0000 ---- 0000 0000 ---- ---- ----
TCP ACK: 0000 SYN: 0000
RST: 0000 0000
Type 0000 0000 ---- ---- 0000 0000 ----
Sent 0000 0008 0000 0000 0000 0008 0000
Rexmit ---- ---- 0000 ---- ---- ---- ----
nsh> ping -c 2 10.0.1.1
PING 10.0.1.1 56 bytes of data
56 bytes from 10.0.1.1: icmp_seq=0 time=0.0 ms
56 bytes from 10.0.1.1: icmp_seq=1 time=0.0 ms
2 packets transmitted, 2 received, 0% packet loss, time 2020 ms
rtt min/avg/max/mdev = 0.000/0.000/0.000/0.000 ms
nsh> ping -c 2 10.0.1.3
PING 10.0.1.3 56 bytes of data
56 bytes from 10.0.1.3: icmp_seq=0 time=20.0 ms
56 bytes from 10.0.1.3: icmp_seq=1 time=10.0 ms
2 packets transmitted, 2 received, 0% packet loss, time 2020 ms
rtt min/avg/max/mdev = 10.000/15.000/20.000/5.000 ms
nsh> ping -c 2 10.0.1.2
PING 10.0.1.2 56 bytes of data
56 bytes from 10.0.1.2: icmp_seq=0 time=0.0 ms
56 bytes from 10.0.1.2: icmp_seq=1 time=0.0 ms
2 packets transmitted, 2 received, 0% packet loss, time 2020 ms
rtt min/avg/max/mdev = 0.000/0.000/0.000/0.000 ms
nsh> iperf -c 10.0.1.1 -B 10.0.1.2
IP: 10.0.1.2
mode=tcp-client sip=10.0.1.2:5001,dip=10.0.1.1:5001, interval=3, time=30
Interval Transfer Bandwidth
0.00- 7.01 sec 440320000 Bytes 502.50 Mbits/sec
7.01- 11.93 sec 309985280 Bytes 504.04 Mbits/sec
11.93- 18.46 sec 414121984 Bytes 507.35 Mbits/sec
18.46- 26.98 sec 539918336 Bytes 506.97 Mbits/sec
26.98- 34.46 sec 470908928 Bytes 503.65 Mbits/sec
0.00- 34.46 sec 2226356224 Bytes 516.86 Mbits/sec
iperf exit
nsh> iperf -s -B 10.0.1.2
IP: 10.0.1.2
mode=tcp-server sip=10.0.1.2:5001,dip=0.0.0.0:5001, interval=3, time=0
accept: 10.0.1.1:55762
Interval Transfer Bandwidth
0.00- 3.01 sec 225084204 Bytes 598.23 Mbits/sec
3.01- 6.32 sec 269714236 Bytes 651.88 Mbits/sec
6.32- 9.63 sec 262278780 Bytes 633.91 Mbits/sec
closed by the peer: 10.0.1.1:55762
iperf exit
nsh>
nsh> iperf -s -B 10.0.1.2 -u
IP: 10.0.1.2
mode=udp-server sip=10.0.1.2:5001,dip=0.0.0.0:5001, interval=3, time=0
want recv=16384
accept: 10.0.1.1:52261
Interval Transfer Bandwidth
0.00- 3.01 sec 5292000 Bytes 14.07 Mbits/sec
3.01- 6.02 sec 5309640 Bytes 14.11 Mbits/sec
6.02- 9.03 sec 5309640 Bytes 14.11 Mbits/sec
9.03- 12.04 sec 5309640 Bytes 14.11 Mbits/sec
12.04- 15.05 sec 5309640 Bytes 14.11 Mbits/sec
15.05- 18.06 sec 5309640 Bytes 14.11 Mbits/sec
18.06- 21.07 sec 5309640 Bytes 14.11 Mbits/sec
21.07- 24.08 sec 5309640 Bytes 14.11 Mbits/sec
24.08- 27.09 sec 5292000 Bytes 14.07 Mbits/sec
27.09- 30.10 sec 5309640 Bytes 14.11 Mbits/sec
30.10- 33.11 sec 5309640 Bytes 14.11 Mbits/sec
33.11- 36.12 sec 5309640 Bytes 14.11 Mbits/sec
36.12- 39.13 sec 5309640 Bytes 14.11 Mbits/sec
39.13- 42.14 sec 5309640 Bytes 14.11 Mbits/sec
42.14- 45.15 sec 5309640 Bytes 14.11 Mbits/sec
45.15- 48.16 sec 5309640 Bytes 14.11 Mbits/sec
```
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