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net/mlx5: Adjust log_max_qp to be 18 at most

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[ 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>
This commit is contained in:
Maher Sanalla 2022-07-24 11:28:21 +03:00 committed by Greg Kroah-Hartman
parent 0edd855cde
commit b04871077d
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/mellanox/mlx5/core/main.c
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@ -524,7 +524,7 @@ 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,