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rtw89 has several ways of handling TX status report events. The first one is based on RPP feature which is used by PCIe HCI. The other one depends on firmware sending a corresponding C2H message, quite similar to what rtw88 has. Toggle a bit in the TX descriptor to indicate to the firmware that TX report for the frame is expected. This will allow handling TX wait skbs and the ones flagged with IEEE80211_TX_CTL_REQ_TX_STATUS correctly. Do the bulk of the patch according to the vendor driver for RTL8851BU. However, there are slight differences in C2H message format between different types of chips. RTL885xB ones follow format V0. RTL8852C has format V1, and RTL8922AU has format V2. Found by Linux Verification Center (linuxtesting.org). Suggested-by: Bitterblue Smith <rtl8821cerfe2@gmail.com> Acked-by: Ping-Ke Shih <pkshih@realtek.com> Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Link: https://patch.msgid.link/20251104135720.321110-6-pchelkin@ispras.ru
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.