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Ahmed Zaki says: ==================== net: napi: add CPU affinity to napi->config Drivers usually need to re-apply the user-set IRQ affinity to their IRQs after reset. However, since there can be only one IRQ affinity notifier for each IRQ, registering IRQ notifiers conflicts with the ARFS rmap management in the core (which also registers separate IRQ affinity notifiers). Move the IRQ affinity management to the napi struct. This way we can have a unified IRQ notifier to re-apply the user-set affinity and also manage the ARFS rmaps. The first patch moves the aRFS rmap management to core. It also adds the IRQ affinity mask to napi_config and re-applies the mask after reset. Patches 2, 4 and 5 use the new API for ena, ice and idpf drivers. ICE does not always delete the NAPIs before releasing the IRQs. The third patch makes sure the driver removes the IRQ number along with the queue when the NAPIs are disabled. Without this, the next patches in this series would free the IRQ before releasing the IRQ notifier (which generates warnings). Tested on ice and idpf. v8: https://lore.kernel.org/20250211210657.428439-1-ahmed.zaki@intel.com v7: https://lore.kernel.org/20250204220622.156061-1-ahmed.zaki@intel.com v6: https://lore.kernel.org/20250118003335.155379-1-ahmed.zaki@intel.com v5: https://lore.kernel.org/20250113171042.158123-1-ahmed.zaki@intel.com v4: https://lore.kernel.org/20250109233107.17519-1-ahmed.zaki@intel.com v3: https://lore.kernel.org/20250104004314.208259-1-ahmed.zaki@intel.com v2: https://lore.kernel.org/202412190454.nwvp3hU2-lkp@intel.com v1: https://lore.kernel.org/20241210002626.366878-1-ahmed.zaki@intel.com ==================== Link: https://patch.msgid.link/20250224232228.990783-1-ahmed.zaki@intel.com Signed-off-by: Jakub Kicinski <kuba@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 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.