Joe DamatoandTony Nguyen 8f7ff18a5e e1000: Link NAPI instances to queues and IRQs
Add support for netdev-genl, allowing users to query IRQ, NAPI, and queue
information.

After this patch is applied, note the IRQ assigned to my NIC:

$ cat /proc/interrupts | grep enp0s8 | cut -f1 --delimiter=':'
 18

Note the output from the cli:

$ ./tools/net/ynl/cli.py --spec Documentation/netlink/specs/netdev.yaml \
                         --dump napi-get --json='{"ifindex": 2}'
[{'id': 513, 'ifindex': 2, 'irq': 18}]

This device supports only 1 rx and 1 tx queue, so querying that:

$ ./tools/net/ynl/cli.py --spec Documentation/netlink/specs/netdev.yaml \
                         --dump queue-get --json='{"ifindex": 2}'
[{'id': 0, 'ifindex': 2, 'napi-id': 513, 'type': 'rx'},
 {'id': 0, 'ifindex': 2, 'napi-id': 513, 'type': 'tx'}]

Signed-off-by: Joe Damato <jdamato@fastly.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2024-10-08 15:22:32 -07:00

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.
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