If using flow control with a high CTS the thread may be
blocked forever on the second transmit attempt due to waiting
on the txdma semaphore. The calling thread can then never
make progress and release any resources it has taken, thus
may cause a deadlock in other parts of the system.
The implementation differs in behavior from interrupt-driven
TX. It should not implicitly wait on a taken semaphore but
return immediately and let the upper layers decide on what to
do next.
If using flow control with a high CTS the thread may be
blocked forever on the second transmit attempt due to waiting
on the txdma semaphore. The calling thread can then never
make progress and release any resources it has taken, thus
may cause a deadlock in other parts of the system.
The implementation differs in behavior from interrupt-driven
TX. It should not implicitly wait on a taken semaphore but
return immediately and let the upper layers decide on what to
do next.
If using flow control with a high CTS the thread may be
blocked forever on the second transmit attempt due to waiting
on the txdma semaphore. The calling thread can then never
make progress and release any resources it has taken, thus
may cause a deadlock in other parts of the system.
The implementation differs in behavior from interrupt-driven
TX. It should not implicitly wait on a taken semaphore but
return immediately and let the upper layers decide on what to
do next.
This commit sets the BLE's interrupt as a IRAM-enabled interrupt,
which enables it to run during a SPI flash operation. This enables
us to create a cache to off-load semaphores and message queues
operations and treat them when the SPI flash operation is finished.
By doing that, we avoid packet losses during a SPI flash operation.
This commit provides an interface to register ISRs that run from
IRAM and keeps track of the non-IRAM interrupts. It enables, for
instance, to avoid disabling all the interrupts during a SPI flash
operation: IRAM-enabled ISRs are, then, able to run during these
operations.
It also makes the code look more similar to the ESP32-S3 SPI flash
implementation by creating a common `esp32_spiflash_init` that is
responsible to create the SPI flash operation tasks. The function
intended to initialize the SPI flash partions was, then, renamed to
`board_spiflash_init`.
Whenever we enter/leave a critical section, the interrupt status is
saved and, then, restored. However, for the ESP32's BLE adapter,
entering/leaving a critical section is done on separate functions
that need to be registered as a callback.
The status flag was being saved as a global variable. However,
calling nested enter_critical_section would overwrite this global
variable that was storing the previous flag and, when leaving the
last critical section, the restored status would be different from
the one expected. The proposed solution for this issue is to create
a global array to store the interrupt status flags for nested calls.
During PSRAM initialization and flash operations, the Cache needs to be disabled.
So all data and code for the aforementioned scope is required to be placed in Internal RAM.
If using flow control with a high CTS the thread may be blocked forever
on the second transmit attempt due to waiting on the txdma semaphore.
The calling thread can then never make progress and release any
resources it has taken, thus may cause a deadlock in other parts of the
system.
The implementation differs in behavior from interrupt-driven TX and the
STM32F7 TXDMA . It should not implicitly wait on a taken semaphore but
return immediately and let the upper layers decide on what to do next.
Some APIs are implemented both in common code and CHIP-specific code,
and the link needs to be based on the implementation in CHIP, so move
NUTTX_CHIP_ABS_DIR before common src.
Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
When implementing IPv6-related logic, we found the `net_ipv6_pref2mask`
and `net_ipv6addr_copy` are using different argument order:
```
net_ipv6addr_copy(ifaddr->addr, addr);
net_ipv6_pref2mask(preflen, ifaddr->mask);
```
Change the order to:
```
net_ipv6addr_copy(ifaddr->addr, addr);
net_ipv6_pref2mask(ifaddr->mask, preflen);
```
Signed-off-by: Zhe Weng <wengzhe@xiaomi.com>
1. Supporting `SIOCSIFADDR` and `SIOCDIFADDR` with Linux in6_ifreq struct to manage ipv6 addresses.
Ref: https://man7.org/linux/man-pages/man7/netdevice.7.html
2. Supporting alias like 'eth0:0' for multiple IPv6 addresses, to keep previous ioctl `SIOCGLIFADDR`, `SIOCSLIFADDR`, `SIOCGLIFNETMASK` and `SIOCSLIFNETMASK` working.
Ref: https://man7.org/linux/man-pages/man8/ifconfig.8.html
Signed-off-by: Zhe Weng <wengzhe@xiaomi.com>
Note that user-space related code, like procfs and lifreq related ioctl commands, are not touched in this commit.
Signed-off-by: Zhe Weng <wengzhe@xiaomi.com>
Compatible with previous usage, because may network drivers are using old member name to print logs, and there's no significant need to change them now.
Signed-off-by: Zhe Weng <wengzhe@xiaomi.com>
Prepare for multiple IPv6 addresses per net device, then we can notify
add/remove of a single address later.
Signed-off-by: Zhe Weng <wengzhe@xiaomi.com>
Race condition if the remote proc is stoped during initialization phase
| #0 0x0249f959 in rpmsg_destroy_ept (ept=0xffffffc0) at open-amp/lib/rpmsg/rpmsg.c:376
| #1 0x024a938c in rpmsg_deinit_vdev (rvdev=0xf2303a48) at open-amp/lib/rpmsg/rpmsg_virtio.c:971
| #2 0x02117e33 in rptun_dev_stop (rproc=0xf2303a04, stop_ns=true) at rptun/rptun.c:891
| #3 0x021181d8 in rptun_do_ioctl (priv=0xf2303a00, cmd=11010, arg=0) at rptun/rptun.c:922
| #4 0x02119722 in rptun_ioctl_foreach (cpuname=0x0, cmd=11010, value=0) at rptun/rptun.c:1086
| #5 0x0211b9df in rptun_poweroff (cpuname=0x0) at rptun/rptun.c:1378
| #6 0x02053aa6 in board_power_off (status=0) at sim/sim_head.c:206
| #7 0x0253d65c in boardctl (cmd=65283, arg=0) at boardctl.c:400
| #8 0x021eb497 in cmd_poweroff (vtbl=0xef606280, argc=1, argv=0xef9b73e0) at nsh_syscmds.c:356
| #9 0x021cdb4d in nsh_command (vtbl=0xef606280, argc=1, argv=0xef9b73e0) at nsh_command.c:1164
| #10 0x021baa72 in nsh_execute (vtbl=0xef606280, argc=1, argv=0xef9b73e0, redirfile=0x0, oflags=0) at nsh_parse.c:845
| #11 0x021c6b0a in nsh_parse_command (vtbl=0xef606280, cmdline=0xef606708 "poweroff") at nsh_parse.c:2744
| #12 0x021c7166 in nsh_parse (vtbl=0xef606280, cmdline=0xef606708 "poweroff") at nsh_parse.c:2828
| #13 0x0221fa2f in nsh_session (pstate=0xef606280, login=1, argc=1, argv=0xef7a7860) at nsh_session.c:245
| #14 0x021f8c04 in nsh_consolemain (argc=1, argv=0xef7a7860) at nsh_consolemain.c:75
| #15 0x021b77eb in nsh_main (argc=1, argv=0xef7a7860) at nsh_main.c:74
| #16 0x02166ddf in nxtask_startup (entrypt=0x21b76ca <nsh_main>, argc=1, argv=0xef7a7860) at sched/task_startup.c:70
| #17 0x020b363c in nxtask_start () at task/task_start.c:134
Signed-off-by: chao an <anchao@xiaomi.com>
