[PATCH net-next 07/16] idpf: link NAPIs to queues

Alexander Lobakin
2025-03-05T16:22:44Z

Add the missing linking of NAPIs to netdev queues when enabling
interrupt vectors in order to support NAPI configuration and
interfaces requiring get_rx_queue()->napi to be set (like XSk
busy polling).

Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
---
drivers/net/ethernet/intel/idpf/idpf_txrx.c | 30 +++++++++++++++++++++
1 file changed, 30 insertions(+)

diff --git a/drivers/net/ethernet/intel/idpf/idpf_txrx.c b/drivers/net/ethernet/intel/idpf/idpf_txrx.c
index 2f221c0abad8..a3f6e8cff7a0 100644
--- a/drivers/net/ethernet/intel/idpf/idpf_txrx.c
+++ b/drivers/net/ethernet/intel/idpf/idpf_txrx.c
@@ -3560,8 +3560,11 @@ void idpf_vport_intr_rel(struct idpf_vport *vport)
static void idpf_vport_intr_rel_irq(struct idpf_vport *vport)
{
struct idpf_adapter *adapter = vport->adapter;
+ bool unlock;
int vector;

+ unlock = rtnl_trylock();
+
for (vector = 0; vector < vport->num_q_vectors; vector++) {
struct idpf_q_vector *q_vector = &vport->q_vectors[vector];
int irq_num, vidx;
@@ -3573,8 +3576,23 @@ static void idpf_vport_intr_rel_irq(struct idpf_vport *vport)
vidx = vport->q_vector_idxs[vector];
irq_num = adapter->msix_entries[vidx].vector;

+ for (u32 i = 0; i < q_vector->num_rxq; i++)
+ netif_queue_set_napi(vport->netdev,
+ q_vector->rx[i]->idx,
+ NETDEV_QUEUE_TYPE_RX,
+ NULL);
+
+ for (u32 i = 0; i < q_vector->num_txq; i++)
+ netif_queue_set_napi(vport->netdev,
+ q_vector->tx[i]->idx,
+ NETDEV_QUEUE_TYPE_TX,
+ NULL);
+
kfree(free_irq(irq_num, q_vector));
}
+
+ if (unlock)
+ rtnl_unlock();
}

/**
@@ -3760,6 +3778,18 @@ static int idpf_vport_intr_req_irq(struct idpf_vport *vport)
"Request_irq failed, error: %d\n", err);
goto free_q_irqs;
}
+
+ for (u32 i = 0; i < q_vector->num_rxq; i++)
+ netif_queue_set_napi(vport->netdev,
+ q_vector->rx[i]->idx,
+ NETDEV_QUEUE_TYPE_RX,
+ &q_vector->napi);
+
+ for (u32 i = 0; i < q_vector->num_txq; i++)
+ netif_queue_set_napi(vport->netdev,
+ q_vector->tx[i]->idx,
+ NETDEV_QUEUE_TYPE_TX,
+ &q_vector->napi);
}

return 0;
--
2.48.1