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This patch is the second part of update flow implementation. Instead of using two action RTCs, we use the same RTC which is twice the size of what was required before the update flow support. This way we always allocate STEs from the same RTC (same pool), which means that update is done similar to how create is done. The bigger size allows us to allocate and write new STEs, and later free the old (pre-update) STEs. Similar to rule creation, STEs are written in reverse order: - write action STEs, while match STE is still pointing to the old action STEs - overwrite the match STE with the new one, which now is pointing to the new action STEs Old action STEs can be freed only once we got completion on the writing of the new match STE. To implement this we added new rule states: UPDATING/UPDATED. Rule is moved to UPDATING state in the beginning of the update flow. Once all completions are received, rule is moved to UPDATED state. At this point old action STEs are freed and rule goes back to CREATED state. Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com> Signed-off-by: Vlad Dogaru <vdogaru@nvidia.com> Reviewed-by: Mark Bloch <mbloch@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Link: https://patch.msgid.link/20250109160546.1733647-16-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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.