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 <[email protected]>
Reviewed-by: Vitaly Lifshits <[email protected]>
---
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 <[email protected]>
