[for-next 10/10] net/mlx5: Activate support for 4K UARs
From: Saeed Mahameed <hidden>
Date: 2017-01-03 21:55:28
Also in:
linux-rdma
Subsystem:
mellanox mlx5 core vpi driver, networking drivers, the rest · Maintainers:
Saeed Mahameed, Leon Romanovsky, Tariq Toukan, Mark Bloch, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Eli Cohen <eli-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org> Activate 4K UAR support for firmware versions that support it. Signed-off-by: Eli Cohen <eli-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org> Reviewed-by: Matan Barak <matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org> Signed-off-by: Leon Romanovsky <redacted> Signed-off-by: Saeed Mahameed <saeedm-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org> --- drivers/net/ethernet/mellanox/mlx5/core/main.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index ff1f144..a16ee16 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c@@ -530,6 +530,10 @@ static int handle_hca_cap(struct mlx5_core_dev *dev) /* disable cmdif checksum */ MLX5_SET(cmd_hca_cap, set_hca_cap, cmdif_checksum, 0); + /* If the HCA supports 4K UARs use it */ + if (MLX5_CAP_GEN_MAX(dev, uar_4k)) + MLX5_SET(cmd_hca_cap, set_hca_cap, uar_4k, 1); + MLX5_SET(cmd_hca_cap, set_hca_cap, log_uar_page_sz, PAGE_SHIFT - 12); err = set_caps(dev, set_ctx, set_sz,
--
2.7.4
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