[PATCH net-next v2] eth: mlx5: link NAPI instances to queues and IRQs

[Joe Damato <jdamato@fastly.com>]

Make mlx5 compatible with the newly added netlink queue GET APIs.

v1 -> v2:
  - Move netlink NULL code to mlx5e_deactivate_channel
  - Move netif_napi_set_irq to mlx5e_open_channel and avoid storing the
    irq, after netif_napi_add which itself sets the IRQ to -1.
  - Fix white space where IRQ is stored in mlx5e_open_channel

Signed-off-by: Joe Damato <jdamato@fastly.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index c8e8f512803e..3e74c7de6050 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -2560,6 +2560,7 @@ static int mlx5e_open_channel(struct mlx5e_priv *priv, int ix,
 	c->lag_port = mlx5e_enumerate_lag_port(priv->mdev, ix);
 
 	netif_napi_add(netdev, &c->napi, mlx5e_napi_poll);
+	netif_napi_set_irq(&c->napi, irq);
 
 	err = mlx5e_open_queues(c, params, cparam);
 	if (unlikely(err))
@@ -2602,6 +2603,9 @@ static void mlx5e_activate_channel(struct mlx5e_channel *c)
 		mlx5e_activate_xsk(c);
 	else
 		mlx5e_activate_rq(&c->rq);
+
+	netif_queue_set_napi(c->netdev, c->ix, NETDEV_QUEUE_TYPE_TX, &c->napi);
+	netif_queue_set_napi(c->netdev, c->ix, NETDEV_QUEUE_TYPE_RX, &c->napi);
 }
 
 static void mlx5e_deactivate_channel(struct mlx5e_channel *c)
@@ -2619,6 +2623,9 @@ static void mlx5e_deactivate_channel(struct mlx5e_channel *c)
 		mlx5e_deactivate_txqsq(&c->sq[tc]);
 	mlx5e_qos_deactivate_queues(c);
 
+	netif_queue_set_napi(c->netdev, c->ix, NETDEV_QUEUE_TYPE_TX, NULL);
+	netif_queue_set_napi(c->netdev, c->ix, NETDEV_QUEUE_TYPE_RX, NULL);
+
 	napi_disable(&c->napi);
 }
 
-- 
2.25.1