ac675ec653
Rework the Ameba WHC WiFi driver from the legacy flat net_driver_s model to the netdev lower-half framework (netdev_lowerhalf_s + netdev_ops_s with .transmit/.receive, IOB-based quota backpressure and a dedicated NETDEV_RX_THREAD). This provides real TX backpressure and moves RX off the IPC callback onto a bounded rx queue. Raise the host TX skb pool (skb_num_ap) to a minimum of 16. The SDK default of 4 is too small for sustained TCP TX: the host send runs out of buffers (-2), which exhausts retransmits and tears the connection down. Enable CONFIG_NET_TCP_SELECTIVE_ACK (which selects OUT_OF_ORDER) in both board defconfigs. WiFi's occasional loss otherwise stalls TCP RX on RTO timeouts (~2 Mbit/s); with SACK + out-of-order queuing RX recovers to ~12-13 Mbit/s. Signed-off-by: raul_chen <raul_chen@realsil.com.cn> |
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| .github | ||
| arch | ||
| audio | ||
| binfmt | ||
| boards | ||
| cmake | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| dummy | ||
| fs | ||
| graphics | ||
| include | ||
| libs | ||
| mm | ||
| net | ||
| openamp | ||
| pass1 | ||
| sched | ||
| syscall | ||
| tools | ||
| video | ||
| wireless | ||
| .asf.yaml | ||
| .codespell-ignore-lines | ||
| .codespellrc | ||
| .editorconfig | ||
| .gitignore | ||
| .gitmessage | ||
| .pre-commit-config.yaml | ||
| .yamllint | ||
| AUTHORS | ||
| CMakeLists.txt | ||
| CONTRIBUTING.md | ||
| INVIOLABLES.md | ||
| Kconfig | ||
| LICENSE | ||
| Makefile | ||
| NOTICE | ||
| README.md | ||
| ReleaseNotes | ||
Apache NuttX is a real-time operating system (RTOS) with an emphasis on standards compliance and small footprint. Scalable from 8-bit to 64-bit microcontroller environments, the primary governing standards in NuttX are POSIX and ANSI standards. Additional standard APIs from Unix and other common RTOSs (such as VxWorks) are adopted for functionality not available under these standards, or for functionality that is not appropriate for deeply-embedded environments (such as fork()).
For brevity, many parts of the documentation will refer to Apache NuttX as simply NuttX.
Getting Started
First time on NuttX? Read the Getting Started guide! If you don't have a board available, NuttX has its own simulator that you can run on terminal.
Documentation
You can find the current NuttX documentation on the Documentation Page.
Alternatively, you can build the documentation yourself by following the Documentation Build Instructions.
The old NuttX documentation is still available in the Apache wiki.
Supported Boards
NuttX supports a wide variety of platforms. See the full list on the Supported Platforms page.
Contributing
If you wish to contribute to the NuttX project, read the Contributing guidelines for information on Git usage, coding standard, workflow and the NuttX principles.
License
The code in this repository is under either the Apache 2 license, or a license compatible with the Apache 2 license. See the License Page for more information.