zhhyu7 opened a new pull request, #17842:
URL: https://github.com/apache/nuttx/pull/17842
## Summary
1. Adapt rpmsgdrv.c to netdev_upperhalf;
2. Add bidirectional data netdev support, both cores have a complete network
protocol stack, and a network interface card can be created through this module
on each core to implement inter-core network communication;
3. It also supports the previous implementation of the cross-core network
card driver, but the network card driver for the other core requires additional
implementation;
4. We have also implemented the rpmsgdrv on the Linux side, which can
provide network-level interconnection with another core Linux system, and this
is also the current main usage scenario;
5. The network cards on both cores will enter the RUNNING state only after
both have been ifup, and only then can they send and receive packets to and
from each other.
## Impact
Expanded the usage scenarios of rpmsgdrv.
## Testing
sim:rpproxy and sim:rpserver with local change:
rpserver
```
+CONFIG_EXAMPLES_HELLO=y
+CONFIG_EXAMPLES_HELLO_STACKSIZE=4096
```
rpproxy
```
-# CONFIG_NET_ETHERNET is not set
+CONFIG_EXAMPLES_HELLO_STACKSIZE=4096
+CONFIG_NETDEV_IFINDEX=y
+CONFIG_NETDEV_PHY_IOCTL=y
+CONFIG_NETUTILS_IPERFTEST_DEVNAME="lo"
+CONFIG_NET_ICMP_SOCKET=y
+CONFIG_NET_LOOPBACK=y
-CONFIG_NET_USRSOCK=y
-CONFIG_NET_USRSOCK_ICMP=y
-CONFIG_NET_USRSOCK_RPMSG=y
-CONFIG_NET_USRSOCK_RPMSG_CPUNAME="server"
-CONFIG_NET_USRSOCK_TCP=y
-CONFIG_NET_USRSOCK_UDP=y
+CONFIG_NET_RPMSG_DRV=y
+CONFIG_NET_RPMSG_DRV_SERVER=y
+CONFIG_NET_TCP=y
+CONFIG_NET_UDP=y
```
test code(create rpmsg network device):
```
#include <nuttx/config.h>
#include <stdio.h>
#include <nuttx/net/rpmsgdrv.h>
int main(int argc, FAR char *argv[])
{
net_rpmsg_drv_init(argv[1], argv[2], NET_LL_ETHERNET);
syslog(0, "create rpmsgdrv done cpu[%s] dev[%s]\n", argv[1], argv[2]);
return 0;
}
```
test log (both sides are clients):
```
NuttShell (NSH) NuttX-12.12.0
server> ifconfig
eth0 Link encap:Ethernet HWaddr 00:00:00:00:00:00 at RUNNING mtu 576
inet addr:0.0.0.0 DRaddr:10.0.0.1 Mask:255.255.255.0
RX: Received Fragment Errors Bytes
00000000 00000000 00000000 0
IPv4 ARP Dropped
00000000 00000000 00000000
TX: Queued Sent Errors Timeouts Bytes
00000003 00000000 00000000 00000000 39c
Total Errors: 00000000
lo Link encap:Local Loopback at RUNNING mtu 1518
inet addr:127.0.0.1 DRaddr:127.0.0.1 Mask:255.0.0.0
RX: Received Fragment Errors Bytes
00000000 00000000 00000000 0
IPv4 ARP Dropped
00000000 00000000 00000000
TX: Queued Sent Errors Timeouts Bytes
00000000 00000000 00000000 00000000 0
Total Errors: 00000000
IPv4 TCP UDP ICMP
Received 0000 0000 0000 0000
Dropped 0000 0000 0000 0000
IPv4 VHL: 0000 Frg: 0000
Checksum 0000 0000 0000 ----
TCP ACK: 0000 SYN: 0000
RST: 0000 0000
Type 0000 ---- ---- 0000
Sent 0003 0000 0003 0000
Rexmit ---- 0000 ---- ----
server>
server> hello proxy rpmsg-dev
[ 24.750000] [server] create rpmsgdrv done cpu[proxy] dev[rpmsg-dev]
server> ifconfig
eth0 Link encap:Ethernet HWaddr 00:00:00:00:00:00 at RUNNING mtu 576
inet addr:0.0.0.0 DRaddr:10.0.0.1 Mask:255.255.255.0
RX: Received Fragment Errors Bytes
00000000 00000000 00000000 0
IPv4 ARP Dropped
00000000 00000000 00000000
TX: Queued Sent Errors Timeouts Bytes
00000003 00000000 00000000 00000000 39c
Total Errors: 00000000
lo Link encap:Local Loopback at RUNNING mtu 1518
inet addr:127.0.0.1 DRaddr:127.0.0.1 Mask:255.0.0.0
RX: Received Fragment Errors Bytes
00000000 00000000 00000000 0
IPv4 ARP Dropped
00000000 00000000 00000000
TX: Queued Sent Errors Timeouts Bytes
00000000 00000000 00000000 00000000 0
Total Errors: 00000000
rpmsg-dev Link encap:Ethernet HWaddr c3:0a:f7:12:df:23 at DOWN mtu 576
inet addr:0.0.0.0 DRaddr:0.0.0.0 Mask:0.0.0.0
RX: Received Fragment Errors Bytes
00000000 00000000 00000000 0
IPv4 ARP Dropped
00000000 00000000 00000000
TX: Queued Sent Errors Timeouts Bytes
00000000 00000000 00000000 00000000 0
Total Errors: 00000000
IPv4 TCP UDP ICMP
Received 0000 0000 0000 0000
Dropped 0000 0000 0000 0000
IPv4 VHL: 0000 Frg: 0000
Checksum 0000 0000 0000 ----
TCP ACK: 0000 SYN: 0000
RST: 0000 0000
Type 0000 ---- ---- 0000
Sent 0003 0000 0003 0000
Rexmit ---- 0000 ---- ----
server> ifconfig rpmsg-dev 100.0.0.1/24
server>
server> cu
NuttShell (NSH) NuttX-12.12.0
proxy>
proxy>
proxy> ifconfig
lo Link encap:Local Loopback at RUNNING mtu 1518
inet addr:127.0.0.1 DRaddr:127.0.0.1 Mask:255.0.0.0
proxy> hello server rpmsg-dev
proxy> [ 80.630000] [proxy] create rpmsgdrv done cpu[server] dev[rpmsg-dev]
proxy> ifconfig
lo Link encap:Local Loopback at RUNNING mtu 1518
inet addr:127.0.0.1 DRaddr:127.0.0.1 Mask:255.0.0.0
rpmsg-dev Link encap:Ethernet HWaddr 8f:10:0a:80:ab:29 at DOWN mtu 576
inet addr:0.0.0.0 DRaddr:0.0.0.0 Mask:0.0.0.0
proxy> ifconfig rpmsg-dev 100.0.0.2/24
proxy> ping -c 3 100.0.0.1
PING 100.0.0.1 56 bytes of data
ERROR: sendto failed at seqno 0: 101
ERROR: sendto failed at seqno 1: 101
ERROR: sendto failed at seqno 2: 101
3 packets transmitted, 0 received, 100% packet loss, time 3030 ms
proxy>
proxy> ifup rpmsg-dev
ifup rpmsg-dev...OK
proxy>
proxy> server>
server> ifup rpmsg-dev
ifup rpmsg-dev...OK
server>
server> cu
proxy>
proxy> ping -c 3 100.0.0.2
PING 100.0.0.2 56 bytes of data
56 bytes from 100.0.0.2: icmp_seq=0 time=0.0 ms
56 bytes from 100.0.0.2: icmp_seq=1 time=0.0 ms
56 bytes from 100.0.0.2: icmp_seq=2 time=0.0 ms
3 packets transmitted, 3 received, 0% packet loss, time 3030 ms
rtt min/avg/max/mdev = 0.000/0.000/0.000/0.000 ms
proxy>
proxy> ping -c 3 100.0.0.1
PING 100.0.0.1 56 bytes of data
56 bytes from 100.0.0.1: icmp_seq=0 time=40.0 ms
56 bytes from 100.0.0.1: icmp_seq=1 time=30.0 ms
56 bytes from 100.0.0.1: icmp_seq=2 time=20.0 ms
3 packets transmitted, 3 received, 0% packet loss, time 3030 ms
rtt min/avg/max/mdev = 20.000/30.000/40.000/8.164 ms
proxy>
proxy> server> ping -c 3 100.0.0.1
PING 100.0.0.1 56 bytes of data
56 bytes from 100.0.0.1: icmp_seq=0 time=0.0 ms
56 bytes from 100.0.0.1: icmp_seq=1 time=0.0 ms
56 bytes from 100.0.0.1: icmp_seq=2 time=0.0 ms
3 packets transmitted, 3 received, 0% packet loss, time 3030 ms
rtt min/avg/max/mdev = 0.000/0.000/0.000/0.000 ms
server> ping -c 3 100.0.0.2
PING 100.0.0.2 56 bytes of data
56 bytes from 100.0.0.2: icmp_seq=0 time=20.0 ms
56 bytes from 100.0.0.2: icmp_seq=1 time=10.0 ms
56 bytes from 100.0.0.2: icmp_seq=2 time=20.0 ms
3 packets transmitted, 3 received, 0% packet loss, time 3030 ms
rtt min/avg/max/mdev = 10.000/16.666/20.000/4.716 ms
server>
server>
```
test log (rpserver is rpmsgdrv client, rpproxy is rpmsg server):
```
NuttShell (NSH) NuttX-12.12.0
proxy>
proxy> ifconfig
lo Link encap:Local Loopback at RUNNING mtu 1518
inet addr:127.0.0.1 DRaddr:127.0.0.1 Mask:255.0.0.0
proxy>
proxy> server> hello proxy rpmsg-dev
[ 16.710000] [server] create rpmsgdrv done cpu[proxy] dev[rpmsg-dev]
server>
server> cu
proxy> ifconfig
lo Link encap:Local Loopback at RUNNING mtu 1518
inet addr:127.0.0.1 DRaddr:127.0.0.1 Mask:255.0.0.0
rpmsg-dev Link encap:Ethernet HWaddr 53:18:62:65:6f:31 at DOWN mtu 576
inet addr:0.0.0.0 DRaddr:0.0.0.0 Mask:0.0.0.0
proxy> ifconfig rpmsg-dev 100.0.0.2/24
proxy> ifup rpmsg-dev
ifup rpmsg-dev...OK
proxy>
proxy> server> ifconfig
eth0 Link encap:Ethernet HWaddr 00:00:00:00:00:00 at RUNNING mtu 576
inet addr:0.0.0.0 DRaddr:10.0.0.1 Mask:255.255.255.0
RX: Received Fragment Errors Bytes
00000000 00000000 00000000 0
IPv4 ARP Dropped
00000000 00000000 00000000
TX: Queued Sent Errors Timeouts Bytes
00000003 00000000 00000000 00000000 39c
Total Errors: 00000000
lo Link encap:Local Loopback at RUNNING mtu 1518
inet addr:127.0.0.1 DRaddr:127.0.0.1 Mask:255.0.0.0
RX: Received Fragment Errors Bytes
00000000 00000000 00000000 0
IPv4 ARP Dropped
00000000 00000000 00000000
TX: Queued Sent Errors Timeouts Bytes
00000000 00000000 00000000 00000000 0
Total Errors: 00000000
rpmsg-dev Link encap:Ethernet HWaddr c7:53:31:f9:e3:6c at RUNNING mtu 576
inet addr:0.0.0.0 DRaddr:0.0.0.0 Mask:0.0.0.0
RX: Received Fragment Errors Bytes
00000000 00000000 00000000 0
IPv4 ARP Dropped
00000000 00000000 00000000
TX: Queued Sent Errors Timeouts Bytes
00000000 00000000 00000000 00000000 0
Total Errors: 00000000
IPv4 TCP UDP ICMP
Received 0000 0000 0000 0000
Dropped 0000 0000 0000 0000
IPv4 VHL: 0000 Frg: 0000
Checksum 0000 0000 0000 ----
TCP ACK: 0000 SYN: 0000
RST: 0000 0000
Type 0000 ---- ---- 0000
Sent 0003 0000 0003 0000
Rexmit ---- 0000 ---- ----
server> ifconfig rpmsg-dev 100.0.0.1/24
server> ifup rpmsg-dev
ifup rpmsg-dev...OK
server>
server> ping -c 3 100.0.0.2
PING 100.0.0.2 56 bytes of data
56 bytes from 100.0.0.2: icmp_seq=0 time=40.0 ms
56 bytes from 100.0.0.2: icmp_seq=1 time=10.0 ms
56 bytes from 100.0.0.2: icmp_seq=2 time=20.0 ms
3 packets transmitted, 3 received, 0% packet loss, time 3030 ms
rtt min/avg/max/mdev = 10.000/23.333/40.000/12.472 ms
server>
server> cu
proxy> ping -c 3 100.0.0.1
PING 100.0.0.1 56 bytes of data
56 bytes from 100.0.0.1: icmp_seq=0 time=20.0 ms
56 bytes from 100.0.0.1: icmp_seq=1 time=30.0 ms
56 bytes from 100.0.0.1: icmp_seq=2 time=20.0 ms
3 packets transmitted, 3 received, 0% packet loss, time 3030 ms
rtt min/avg/max/mdev = 20.000/23.333/30.000/4.715 ms
proxy>
proxy> server>
server>
```
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