On 10/21/2024 8:48 PM, Vinicius Costa Gomes wrote:
Joe Damato <jdam...@fastly.com> writes:

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 144 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 144 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 <jdam...@fastly.com>
---

Acked-by: Vinicius Costa Gomes <vinicius.go...@intel.com>

Reviewed-by: Vitaly Lifshits <vitaly.lifsh...@intel.com>



Cheers,

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