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Kuniyuki Iwashima
0f681b0ecd
Let's pass the queue index to netif_napi_add_config() to preserve
per-NAPI config.
Test:
Set 100 to defer-hard-irqs (default is 0) and check the value after
link down & up.
$ cat /sys/class/net/enp39s0/napi_defer_hard_irqs
0
$ ./tools/net/ynl/pyynl/cli.py --spec Documentation/netlink/specs/netdev.yaml \
--dump napi-get --json='{"ifindex": 2}'
[{'defer-hard-irqs': 0,
'gro-flush-timeout': 0,
'id': 65,
'ifindex': 2,
'irq': 29,
'irq-suspend-timeout': 0}]
$ sudo ./tools/net/ynl/pyynl/cli.py --spec Documentation/netlink/specs/netdev.yaml \
--do napi-set --json='{"id": 65, "defer-hard-irqs": 100}'
$ sudo ip link set enp39s0 down && sudo ip link set enp39s0 up
Without patch:
$ ./tools/net/ynl/pyynl/cli.py --spec Documentation/netlink/specs/netdev.yaml \
--dump napi-get --json='{"ifindex": 2}'
[{'defer-hard-irqs': 0, <------------------- Reset to 0
'gro-flush-timeout': 0,
'id': 66, <------------------------------- New ID
'ifindex': 2,
'irq': 29,
'irq-suspend-timeout': 0}]
With patch:
$ ./tools/net/ynl/pyynl/cli.py --spec Documentation/netlink/specs/netdev.yaml \
--dump napi-get --json='{"ifindex": 2}'
[{'defer-hard-irqs': 100, <--------------+-- Preserved
'gro-flush-timeout': 0, |
'id': 65, <----------------------------'
'ifindex': 2,
'irq': 29,
'irq-suspend-timeout': 0}]
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Joe Damato <jdamato@fastly.com>
Reviewed-by: Arthur Kiyanovski <akiyano@amazon.com>
Link: https://patch.msgid.link/20250407164802.25184-1-kuniyu@amazon.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.