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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Richard Cochran , Gal Pressman , Vadim Fedorenko , linux-rdma@vger.kernel.org (open list:MELLANOX MLX5 core VPI driver) Subject: [PATCH net-next v3] net/mlx5e: link NAPI instances to queues and IRQs Date: Thu, 8 Feb 2024 03:07:00 +0000 Message-Id: <20240208030702.27296-1-jdamato@fastly.com> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-rdma@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Make mlx5 compatible with the newly added netlink queue GET APIs. Signed-off-by: Joe Damato --- v2 -> v3: - Fix commit message subject - call netif_queue_set_napi in mlx5e_ptp_activate_channel and mlx5e_ptp_deactivate_channel to enable/disable NETDEV_QUEUE_TYPE_RX for the PTP channel. - Modify mlx5e_activate_txqsq and mlx5e_deactivate_txqsq to set NETDEV_QUEUE_TYPE_TX which should take care of all TX queues including QoS/HTB and PTP. - Rearrange mlx5e_activate_channel and mlx5e_deactivate_channel for better ordering when setting and unsetting NETDEV_QUEUE_TYPE_RX NAPI structs 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 drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c | 3 +++ drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 7 +++++++ 2 files changed, 10 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c b/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c index 078f56a3cbb2..fbbc287d924d 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c @@ -927,6 +927,8 @@ void mlx5e_ptp_activate_channel(struct mlx5e_ptp *c) int tc; napi_enable(&c->napi); + netif_queue_set_napi(c->netdev, c->rq.ix, NETDEV_QUEUE_TYPE_RX, + &c->napi); if (test_bit(MLX5E_PTP_STATE_TX, c->state)) { for (tc = 0; tc < c->num_tc; tc++) @@ -951,6 +953,7 @@ void mlx5e_ptp_deactivate_channel(struct mlx5e_ptp *c) mlx5e_deactivate_txqsq(&c->ptpsq[tc].txqsq); } + netif_queue_set_napi(c->netdev, c->rq.ix, NETDEV_QUEUE_TYPE_RX, NULL); napi_disable(&c->napi); } diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c index c8e8f512803e..2f1792854dd5 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -1806,6 +1806,7 @@ void mlx5e_activate_txqsq(struct mlx5e_txqsq *sq) set_bit(MLX5E_SQ_STATE_ENABLED, &sq->state); netdev_tx_reset_queue(sq->txq); netif_tx_start_queue(sq->txq); + netif_queue_set_napi(sq->channel->netdev, sq->txq_ix, NETDEV_QUEUE_TYPE_TX, &sq->channel->napi); } void mlx5e_tx_disable_queue(struct netdev_queue *txq) @@ -1819,6 +1820,7 @@ void mlx5e_deactivate_txqsq(struct mlx5e_txqsq *sq) { struct mlx5_wq_cyc *wq = &sq->wq; + netif_queue_set_napi(sq->channel->netdev, sq->txq_ix, NETDEV_QUEUE_TYPE_TX, NULL); clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state); synchronize_net(); /* Sync with NAPI to prevent netif_tx_wake_queue. */ @@ -2560,6 +2562,7 @@ 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)) @@ -2602,12 +2605,16 @@ 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_RX, &c->napi); } static void mlx5e_deactivate_channel(struct mlx5e_channel *c) { int tc; + netif_queue_set_napi(c->netdev, c->ix, NETDEV_QUEUE_TYPE_RX, NULL); + if (test_bit(MLX5E_CHANNEL_STATE_XSK, c->state)) mlx5e_deactivate_xsk(c); else