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ae680bcbd0
For XDP TX, even tough we start out with correctly aligned buffers, the XDP program might change the data's alignment. For REDIRECT, we have no control over the alignment either. Create a new workaround for xdp_frame structures to verify the erratum conditions and move the data to a fresh buffer if necessary. Create a new xdp_frame for managing the new buffer and free the old one using the XDP API. Due to alignment constraints, all frames have a 256 byte headroom that is offered fully to XDP under the erratum. If the XDP program uses all of it, the data needs to be move to make room for the xdpf backpointer. Disable the metadata support since the information can be lost. Acked-by: Madalin Bucur <madalin.bucur@oss.nxp.com> Signed-off-by: Camelia Groza <camelia.groza@nxp.com> Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
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| README | ||
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.