From 45bded2c216da6010184ac5ebe88c27f73439009 Mon Sep 17 00:00:00 2001 From: Kamal Heib Date: Wed, 18 Jan 2017 14:10:32 +0200 Subject: [PATCH] IB/mlx5: Verify that Q counters are supported Make sure that the Q counters are supported by the FW before trying to allocate/deallocte them, this will avoid driver load failure when they aren't supported by the FW. Fixes: 0837e86a7a34 ('IB/mlx5: Add per port counters') Cc: # v4.7+ Signed-off-by: Kamal Heib Reviewed-by: Mark Bloch Signed-off-by: Leon Romanovsky Signed-off-by: Doug Ledford --- drivers/infiniband/hw/mlx5/main.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index a191b9327b0c..0187f1d7234a 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -3313,9 +3313,11 @@ static void *mlx5_ib_add(struct mlx5_core_dev *mdev) if (err) goto err_rsrc; - err = mlx5_ib_alloc_q_counters(dev); - if (err) - goto err_odp; + if (MLX5_CAP_GEN(dev->mdev, max_qp_cnt)) { + err = mlx5_ib_alloc_q_counters(dev); + if (err) + goto err_odp; + } dev->mdev->priv.uar = mlx5_get_uars_page(dev->mdev); if (!dev->mdev->priv.uar) @@ -3364,7 +3366,8 @@ err_uar_page: mlx5_put_uars_page(dev->mdev, dev->mdev->priv.uar); err_q_cnt: - mlx5_ib_dealloc_q_counters(dev); + if (MLX5_CAP_GEN(dev->mdev, max_qp_cnt)) + mlx5_ib_dealloc_q_counters(dev); err_odp: mlx5_ib_odp_remove_one(dev); @@ -3397,7 +3400,8 @@ static void mlx5_ib_remove(struct mlx5_core_dev *mdev, void *context) mlx5_free_bfreg(dev->mdev, &dev->fp_bfreg); mlx5_free_bfreg(dev->mdev, &dev->bfreg); mlx5_put_uars_page(dev->mdev, mdev->priv.uar); - mlx5_ib_dealloc_q_counters(dev); + if (MLX5_CAP_GEN(dev->mdev, max_qp_cnt)) + mlx5_ib_dealloc_q_counters(dev); destroy_umrc_res(dev); mlx5_ib_odp_remove_one(dev); destroy_dev_resources(&dev->devr);