Feature/tw8155 optimize tx flow control
1. Remove TX flow control in LWIP
2. Make the return value of esp_wifi_internal_tx consistent with LWIP error code
See merge request !164
API reference, first batch
This includes fixes to documentation formats in header files, some standalone doc fixes, necessary files for readthedocs, and instructions for documenting the code.
See merge request !162
146f5962 - Make the return value of esp_wifi_internal_tx consistent with LWIP error code so that
the up-layer can detect the out-of-memory error and take action accordingly, such do flow control.
lwip: fix tcp rx abnormal issue(tw8242)
In tcp_alloc(), initialize per_soc_tcp_wnd before initializing recv_wnd because recv_wnd depends on per_soc_tcp_wnd.
See merge request !160
nvs: fix memory leaks in HashList and nvs_close
Fixes TW8162.
Associated test case is run under Instruments on macOS, until I set up valgrind to test this automatically on Linux.
See merge request !150
Add cross-core int to accelerate task being awoken from another CPU.
This adds a per-CPU interrupt that can be used to poke the CPU to go do something. In this case all that is implemented is a request to yield the current task, used in case a CPU unblocks a task that runs on another CPU. This gets rid of the limitation that inter-CPU communication using queues, muxes etc can take up to a FreeRTOS tick to happen.
Specs!
Sending an in in a queue of length 1 (essentially a semaphore) as quickly as possible (just a small delay in the sender, to make sure the receiver task gets swapped out) for 10 seconds. Number indicates the amount of ints transferred
Old code:
CPU0->CPU0: 42986
CPU0->CPU1,: 2999
New code:
CPU0->CPU0: 42868
CPU0->CPU1: 62073
See merge request !155
Fix the things that broke when adding the new WDTs
Seemingly, I broke a bunch of things when adding the interrupt WDTs and moved the panic handler to the esp32 directory. This fixes that, as well as the issue where flashing would trigger the int wdt. It also bodges in a fix for a merge artifact breaking the halt-on-first-thread-when-openocd-is-connected; that fix should be refined later.
See merge request !157
lwip: support max 16 sockets
Since the customers need more sockets in their application, support max 16 sockets,
in other words, the total socket number of UDP/TCP/RAW sockets should not exceed 16.
See merge request !156
