linux-kernel - [RFC net-next v3 9/9] mlx4: Add support for napi storage to RX CQs

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Message-Id: <20240912100738.16567-10-jdamato@fastly.com>
Date: Thu, 12 Sep 2024 10:07:17 +0000
From: Joe Damato <jdamato@...tly.com>
To: netdev@...r.kernel.org
Cc: mkarsten@...terloo.ca,
	kuba@...nel.org,
	skhawaja@...gle.com,
	sdf@...ichev.me,
	bjorn@...osinc.com,
	amritha.nambiar@...el.com,
	sridhar.samudrala@...el.com,
	Joe Damato <jdamato@...tly.com>,
	Tariq Toukan <tariqt@...dia.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Paolo Abeni <pabeni@...hat.com>,
	linux-rdma@...r.kernel.org (open list:MELLANOX MLX4 core VPI driver),
	linux-kernel@...r.kernel.org (open list)
Subject: [RFC net-next v3 9/9] mlx4: Add support for napi storage to RX CQs

Use netif_napi_add_storage to assign per-NAPI storage when initializing
RX CQ NAPIs.

Presently, struct napi_storage only has support for two fields used for
RX, so there is no need to support them with TX CQs, yet.

Signed-off-by: Joe Damato <jdamato@...tly.com>
---
 drivers/net/ethernet/mellanox/mlx4/en_cq.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_cq.c b/drivers/net/ethernet/mellanox/mlx4/en_cq.c
index 461cc2c79c71..6943268e8256 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_cq.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_cq.c
@@ -156,7 +156,8 @@ int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq,
 		break;
 	case RX:
 		cq->mcq.comp = mlx4_en_rx_irq;
-		netif_napi_add(cq->dev, &cq->napi, mlx4_en_poll_rx_cq);
+		netif_napi_add_storage(cq->dev, &cq->napi, mlx4_en_poll_rx_cq,
+				       cq_idx);
 		netif_napi_set_irq(&cq->napi, irq);
 		napi_enable(&cq->napi);
 		netif_queue_set_napi(cq->dev, cq_idx, NETDEV_QUEUE_TYPE_RX, &cq->napi);
-- 
2.25.1