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RQTs (Receive Queue Table) should redirect traffic to the channels' RQs when they're active. Otherwise, redirect to the designated "drop RQ". RQTs are created in "inactive" state, pointing to the "drop RQ". In activate and de-activate flows, do not "deactivate" the rest of RQTs (beyond the num of channels), as they are already inactive. This cuts down unnecessary execution of FW commands (MODIFY_RQT), and improves the latency of open/close channels or configuration change. Perf: NIC: Connect-X7. Configuration: 1 combined channel, max num channels 248. Measure time for "interface up + interface down". Before: 0.313 sec After: 0.057 sec (5.5x faster) 247 MODIFY_RQT commands saved in interface up. 247 MODIFY_RQT commands saved in interface down. Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/1752009387-13300-6-git-send-email-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.