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803f9fb819
The RXWM(RxWaterMark) sets the minimum number of free location within the RX FIFO before the watermark is exceeded which in turn will cause the Transport Layer to instruct the Link Layer to transmit HOLDS to the transmitting end. Based on the default RXWM value 0x20, RX FIFO overflow might be observed on i.MX8QM MEK board, when some Gen3 SATA disks are used. The FIFO overflow will result in CRC error, internal error and protocol error, then the SATA link is not stable anymore. To fix this issue, enlarge RX water mark setting from 0x20 to 0x29. Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com> Link: https://lore.kernel.org/r/1723428055-27021-5-git-send-email-hongxing.zhu@nxp.com Signed-off-by: Niklas Cassel <cassel@kernel.org> |
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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.