| Message ID | 20241005145717.302575-2-jdamato@fastly.com (mailing list archive) |
|---|---|
| State | Superseded |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | tg3: Link IRQs, NAPIs, and queues | expand |
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index 378815917741..6564072b47ba 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -7413,9 +7413,11 @@ static void tg3_napi_init(struct tg3 *tp) { int i; - netif_napi_add(tp->dev, &tp->napi[0].napi, tg3_poll); - for (i = 1; i < tp->irq_cnt; i++) - netif_napi_add(tp->dev, &tp->napi[i].napi, tg3_poll_msix); + for (i = 0; i < tp->irq_cnt; i++) { + netif_napi_add(tp->dev, &tp->napi[i].napi, + i ? tg3_poll_msix : tg3_poll); + netif_napi_set_irq(&tp->napi[i].napi, tp->napi[i].irq_vec); + } } static void tg3_napi_fini(struct tg3 *tp)
Link IRQs to NAPI instances with netif_napi_set_irq. This information can be queried with the netdev-genl API. Compare the output of /proc/interrupts for my tg3 device with the output of netdev-genl after applying this patch: $ cat /proc/interrupts | grep eth0 | cut -f1 --delimiter=':' 343 344 345 346 347 $ ./tools/net/ynl/cli.py --spec Documentation/netlink/specs/netdev.yaml \ --dump napi-get --json='{"ifindex": 2}' [{'id': 8197, 'ifindex': 2, 'irq': 347}, {'id': 8196, 'ifindex': 2, 'irq': 346}, {'id': 8195, 'ifindex': 2, 'irq': 345}, {'id': 8194, 'ifindex': 2, 'irq': 344}, {'id': 8193, 'ifindex': 2, 'irq': 343}] Signed-off-by: Joe Damato <jdamato@fastly.com> Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com> --- rfcv3: - wrapped the netif_napi_add call to 80 characters drivers/net/ethernet/broadcom/tg3.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)