netdev - [PATCH V2 mlx5-next 04/11] IB/mlx5: Restrict 'DELAY_DROP

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Date:   Mon, 29 Apr 2019 18:14:07 +0000
From:   Saeed Mahameed <saeedm@...lanox.com>
To:     Saeed Mahameed <saeedm@...lanox.com>,
        Leon Romanovsky <leonro@...lanox.com>
CC:     Jason Gunthorpe <jgg@...lanox.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        Aya Levin <ayal@...lanox.com>
Subject: [PATCH V2 mlx5-next 04/11] IB/mlx5: Restrict 'DELAY_DROP_TIMEOUT'
 subtype to Ethernet interfaces

From: Aya Levin <ayal@...lanox.com>

Subtype 'DELAY_DROP_TIMEOUT' (under 'GENERAL' event) is restricted to
Ethernet interfaces. This patch doesn't change functionality or breaks
current flow. In the downstream patch, non Ethernet (like IB) interfaces
will receive 'GENERAL' event.

Fixes: 5d3c537f9070 ("net/mlx5: Handle event of power detection in the PCIE slot")
Signed-off-by: Aya Levin <ayal@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
---
 drivers/infiniband/hw/mlx5/main.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index 44d00cc5ffe2..fae6a6a1fbea 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -4347,9 +4347,13 @@ static void delay_drop_handler(struct work_struct *work)
 static void handle_general_event(struct mlx5_ib_dev *ibdev, struct mlx5_eqe *eqe,
 				 struct ib_event *ibev)
 {
+	u8 port = (eqe->data.port.port >> 4) & 0xf;
+
 	switch (eqe->sub_type) {
 	case MLX5_GENERAL_SUBTYPE_DELAY_DROP_TIMEOUT:
-		schedule_work(&ibdev->delay_drop.delay_drop_work);
+		if (mlx5_ib_port_link_layer(&ibdev->ib_dev, port) ==
+					    IB_LINK_LAYER_ETHERNET)
+			schedule_work(&ibdev->delay_drop.delay_drop_work);
 		break;
 	default: /* do nothing */
 		return;
-- 
2.20.1