CV-Bowen opened a new pull request, #17807:
URL: https://github.com/apache/nuttx/pull/17807
## Summary
### Commit 1
RPMSG Test Framework: Added a comprehensive RPMSG API test service
(rpmsg_test) that allows kernel-level testing of RPMSG hold/release buffer
functionality through ioctl interface.
### Commit 2
Configuration Enhancement: Enabled CONFIG_RPMSG_PING for sim
rpserver/rpproxy configurations to facilitate RPMSG feature testing.
## Impact
Add new Rpmsg Services, should has no impact on other rpmsg services
## Testing
```c
❯ ./nuttx/cmake_out/sim_server/nuttx
NuttShell (NSH) NuttX-12.10.0
server>
server>
server> ps
TID PID PPID PRI POLICY TYPE NPX STATE EVENT SIGMASK
STACK COMMAND
0 0 4 0 FIFO Kthread - Ready
0000000000000000 0069616 Idle_Task
1 0 4 224 FIFO Kthread - Waiting Semaphore
0000000000000000 0067504 rpmsgdev_server 0xe6617850 0xe6617898
2 0 4 224 FIFO Kthread - Waiting Semaphore
0000000000000000 0067520 hpwork 0x400ee0c0 0x400ee108
3 0 4 100 FIFO Kthread - Waiting Semaphore
0000000000000000 0067520 lpwork 0x400ee140 0x400ee188
4 4 0 100 FIFO Task - Running
0000000000000000 0067528 nsh_main
5 0 4 224 FIFO Kthread - Waiting Semaphore
0000000000000000 0069560 rptun proxy 0xe677ae20
6 4 0 80 FIFO pthread - Waiting Semaphore
0000000000000000 0067560 netinit 0x400751d2 0
server>
server>
server>
server>
server>
server> cu
NuttShell (NSH) NuttX-12.10.0
proxy>
proxy>
proxy> ps
TID PID PPID PRI POLICY TYPE NPX STATE EVENT SIGMASK
STACK COMMAND
0 0 2 0 FIFO Kthread - Ready
0000000000000000 0069616 Idle_Task
1 0 2 224 FIFO Kthread - Waiting Semaphore
0000000000000000 0067512 hpwork 0x400bf0c0 0x400bf108
2 2 0 100 FIFO Task - Running
0000000000000000 0067536 nsh_main
3 0 2 224 FIFO Kthread - Waiting Semaphore
0000000000000000 0069560 rptun server 0xe5e98050
proxy>
proxy>
proxy> server>
server>
server>
server> rptun ping all 1 1 1 1
[ 16.370000] [server] ping times: 1
[ 16.370000] [server] buffer_len: 2032, send_len: 17
[ 16.370000] [server] avg: 0 s, 19969287 ns
[ 16.370000] [server] min: 0 s, 19969287 ns
[ 16.370000] [server] max: 0 s, 19969287 ns
[ 16.370000] [server] rate: 0.006810 Mbits/sec
server>
server>
server> rptun ping all 1 1 1 1
[ 17.510000] [server] ping times: 1
[ 17.510000] [server] buffer_len: 2032, send_len: 17
[ 17.510000] [server] avg: 0 s, 19946854 ns
[ 17.510000] [server] min: 0 s, 19946854 ns
[ 17.510000] [server] max: 0 s, 19946854 ns
[ 17.510000] [server] rate: 0.006818 Mbits/sec
server> rptun ping all 1 1 1 1
[ 17.890000] [server] ping times: 1
[ 17.890000] [server] buffer_len: 2032, send_len: 17
[ 17.890000] [server] avg: 0 s, 9969876 ns
[ 17.890000] [server] min: 0 s, 9969876 ns
[ 17.890000] [server] max: 0 s, 9969876 ns
[ 17.890000] [server] rate: 0.013641 Mbits/sec
server>
server>
server> rpmsg test /dev/rptun/proxy
[ 28.900000] [server] Rpmsg Test: start send
[ 28.900000] [server] Rpmsg Test: tx buffer num=8 space=2032
[ 28.900000] [server] Rpmsg Test: send finish
server> [ 25.810000] [proxy] Rpmsg Test: hold rx buffer finish
[ 25.830000] [proxy] Rpmsg Test: release rx buffers start
[ 25.830000] [proxy] Rpmsg Test: release rx buffers end
server>
server>
server>
server>
server> uname -a
NuttX server 12.10.0 80e35af3960-dirty Jan 8 2026 17:20:30 sim sim
```
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