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ATDS (Alternate Descriptor Size) is a part of the DMA Bus Mode configs (together with PBL, ALL, EME, etc) of the DW GMAC controllers. Seeing it's not changed at runtime but is activated as long as the IP-core has it supported (at least due to the Type 2 Full Checksum Offload Engine feature), move the respective parameter from the stmmac_dma_ops::init() callback argument to the stmmac_dma_cfg structure, which already have the rest of the DMA-related configs defined. Besides the being added in the next commit DW GMAC multi-channels support will require to add the stmmac_dma_ops::init_chan() callback and have the ATDS flag set/cleared for each channel in there. Having the atds-flag in the stmmac_dma_cfg structure will make the parameter accessible from stmmac_dma_ops::init_chan() callback too. Signed-off-by: Feiyang Chen <chenfeiyang@loongson.cn> Signed-off-by: Yinggang Gu <guyinggang@loongson.cn> Reviewed-by: Serge Semin <fancer.lancer@gmail.com> Acked-by: Huacai Chen <chenhuacai@loongson.cn> Signed-off-by: Yanteng Si <siyanteng@loongson.cn> Tested-by: Serge Semin <fancer.lancer@gmail.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
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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.