2022-08-29 19:09:15 +03:00
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Maher Sanalla <msanalla@nvidia.com>
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Date: Sun, 24 Jul 2022 11:28:21 +0300
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Subject: [PATCH] net/mlx5: Adjust log_max_qp to be 18 at most
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[ Upstream commit a6e9085d791f8306084fd5bc44dd3fdd4e1ac27b ]
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The cited commit limited log_max_qp to be 17 due to FW capabilities.
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Recently, it turned out that there are old FW versions that supported
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more than 17, so the cited commit caused a degradation.
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Thus, set the maximum log_max_qp back to 18 as it was before the
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cited commit.
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Fixes: 7f839965b2d7 ("net/mlx5: Update log_max_qp value to be 17 at most")
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Signed-off-by: Maher Sanalla <msanalla@nvidia.com>
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Reviewed-by: Maor Gottlieb <maorg@nvidia.com>
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Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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Signed-off-by: Sasha Levin <sashal@kernel.org>
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Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
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---
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drivers/net/ethernet/mellanox/mlx5/core/main.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
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2022-08-02 10:17:19 +03:00
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index c9b4e50a593e..95f26624b57c 100644
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2022-08-29 19:09:15 +03:00
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--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
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+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
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2022-08-02 10:17:19 +03:00
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@@ -524,7 +524,7 @@ static int handle_hca_cap(struct mlx5_core_dev *dev, void *set_ctx)
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2022-08-29 19:09:15 +03:00
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/* Check log_max_qp from HCA caps to set in current profile */
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if (prof->log_max_qp == LOG_MAX_SUPPORTED_QPS) {
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- prof->log_max_qp = min_t(u8, 17, MLX5_CAP_GEN_MAX(dev, log_max_qp));
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+ prof->log_max_qp = min_t(u8, 18, MLX5_CAP_GEN_MAX(dev, log_max_qp));
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} else if (MLX5_CAP_GEN_MAX(dev, log_max_qp) < prof->log_max_qp) {
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mlx5_core_warn(dev, "log_max_qp value in current profile is %d, changing it to HCA capability limit (%d)\n",
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prof->log_max_qp,
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