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    Subject[PATCH 5.15 370/779] net/mlx5: Adjust log_max_qp to be 18 at most
    Date
    From: Maher Sanalla <msanalla@nvidia.com>

    [ Upstream commit a6e9085d791f8306084fd5bc44dd3fdd4e1ac27b ]

    The cited commit limited log_max_qp to be 17 due to FW capabilities.
    Recently, it turned out that there are old FW versions that supported
    more than 17, so the cited commit caused a degradation.

    Thus, set the maximum log_max_qp back to 18 as it was before the
    cited commit.

    Fixes: 7f839965b2d7 ("net/mlx5: Update log_max_qp value to be 17 at most")
    Signed-off-by: Maher Sanalla <msanalla@nvidia.com>
    Reviewed-by: Maor Gottlieb <maorg@nvidia.com>
    Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/net/ethernet/mellanox/mlx5/core/main.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
    index 4ed740994279..5a6606c843ed 100644
    --- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
    +++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
    @@ -516,7 +516,7 @@ static int handle_hca_cap(struct mlx5_core_dev *dev, void *set_ctx)

    /* Check log_max_qp from HCA caps to set in current profile */
    if (prof->log_max_qp == LOG_MAX_SUPPORTED_QPS) {
    - prof->log_max_qp = min_t(u8, 17, MLX5_CAP_GEN_MAX(dev, log_max_qp));
    + prof->log_max_qp = min_t(u8, 18, MLX5_CAP_GEN_MAX(dev, log_max_qp));
    } else if (MLX5_CAP_GEN_MAX(dev, log_max_qp) < prof->log_max_qp) {
    mlx5_core_warn(dev, "log_max_qp value in current profile is %d, changing it to HCA capability limit (%d)\n",
    prof->log_max_qp,
    --
    2.35.1


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