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c00743cbf2
'struct hns_roce_hem' is used to refer to the last level of dma buffer managed by the hw, pointed by a single BA(base address) in the previous level of BT(base table), so the dma buffer in 'struct hns_roce_hem' must be contiguous. Right now the size of dma buffer in 'struct hns_roce_hem' is decided by mhop->buf_chunk_size in get_hem_table_config(), which ensure the mhop->buf_chunk_size is power of two of PAGE_SIZE, so there will be only one contiguous dma buffer allocated in hns_roce_alloc_hem(), which means hem->chunk_list and chunk->mem for linking multi dma buffers is unnecessary. This patch removes the hem->chunk_list and chunk->mem and other related macro and function accordingly. Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com> Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com> Link: https://lore.kernel.org/r/20240113085935.2838701-7-huangjunxian6@hisilicon.com Signed-off-by: Leon Romanovsky <leon@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 Restructured Text 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.