Re: [Intel-wired-lan] [PATCH iwl-next v6 1/2] igc: Link IRQs to NAPI instances

[Avigail Dahan <Avigailx.dahan@intel.com>]

On 29/10/2024 22:12, Joe Damato wrote:
> Link IRQs to NAPI instances via netdev-genl API so that users can query
> this information with netlink.
> 
> Compare the output of /proc/interrupts (noting that IRQ 128 is the
> "other" IRQ which does not appear to have a NAPI instance):
> 
> $ cat /proc/interrupts | grep enp86s0 | cut --delimiter=":" -f1
>   128
>   129
>   130
>   131
>   132
> 
> The output from netlink shows the mapping of NAPI IDs to IRQs (again
> noting that 128 is absent as it is the "other" IRQ):
> 
> $ ./tools/net/ynl/cli.py --spec Documentation/netlink/specs/netdev.yaml \
>                           --dump napi-get --json='{"ifindex": 2}'
> 
> [{'defer-hard-irqs': 0,
>    'gro-flush-timeout': 0,
>    'id': 8196,
>    'ifindex': 2,
>    'irq': 132},
>   {'defer-hard-irqs': 0,
>    'gro-flush-timeout': 0,
>    'id': 8195,
>    'ifindex': 2,
>    'irq': 131},
>   {'defer-hard-irqs': 0,
>    'gro-flush-timeout': 0,
>    'id': 8194,
>    'ifindex': 2,
>    'irq': 130},
>   {'defer-hard-irqs': 0,
>    'gro-flush-timeout': 0,
>    'id': 8193,
>    'ifindex': 2,
>    'irq': 129}]
> 
> Signed-off-by: Joe Damato <jdamato@fastly.com>
> Reviewed-by: Vitaly Lifshits <vitaly.lifshits@intel.com>
> ---
>   v4:
>     - Fix typo in commit message (replacing 144 with 128)
> 
>   v2:
>     - Line wrap at 80 characters
> 
>   drivers/net/ethernet/intel/igc/igc_main.c | 3 +++
>   1 file changed, 3 insertions(+)
> 
Tested-by: Avigail Dahan <avigailx.dahan@intel.com>