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The VF can program the RSS hash configuration over virtchnl. It does this by sending a u64 bitmask which represents the current hash configuration. It is not trivial to reverse the hardware configuration back to this hash set for migration. Instead, save the value to the ice_vf structure when its modified by the VF. The rss_hashcfg value is an 8-byte field. Make room for it in ice_vf by re-arranging some of the existing fields. There is a 4-byte gap after the first_vector_idx, and a 4-byte gap between max_tx_rate and vf_states. Move first_vector_idx into the later 4-byte gap, creating an 8 byte area where rss_hashcfg can be placed. Also move the num_msix field near min_tx_rate, filling 2 bytes of a 3 byte hole. The end result of these changes enables placing the rss_hashcfg field into the structure while also saving 8 bytes in size. It looks like there are a handful of more possible cleanups to reduce the size even further, but those have been left as a future cleanup. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Reviewed-by: Madhu Chittim <madhu.chittim@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> |
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| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .clippy.toml | ||
| .cocciconfig | ||
| .editorconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .pylintrc | ||
| .rustfmt.toml | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| 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 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.