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Commit 7c60bcbb authored by Matan Barak's avatar Matan Barak Committed by Doug Ledford
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IB/mlx5: Add support for hca_core_clock and timestamp_mask 



Reporting the hca_core_clock (in kHZ) and the timestamp_mask in
query_device extended verb. timestamp_mask is used by users in order
to know what is the valid range of the raw timestamps, while
hca_core_clock reports the clock frequency that is used for
timestamps.

Signed-off-by: default avatarMatan Barak <matanb@mellanox.com>
Reviewed-by: default avatarMoshe Lazer <moshel@mellanox.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent 301a721e

drivers/infiniband/hw/mlx5/main.c

+2 −0
Original line number Diff line number Diff line
@@ -503,6 +503,8 @@ static int mlx5_ib_query_device(struct ib_device *ibdev, 
	props->max_total_mcast_qp_attach = props->max_mcast_qp_attach *

					   props->max_mcast_grp;

	props->max_map_per_fmr = INT_MAX; /* no limit in ConnectIB */

	props->hca_core_clock = MLX5_CAP_GEN(mdev, device_frequency_khz);

	props->timestamp_mask = 0x7FFFFFFFFFFFFFFFULL;



#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING

	if (MLX5_CAP_GEN(mdev, pg))

include/linux/mlx5/mlx5_ifc.h

+6 −3
Original line number Diff line number Diff line
@@ -794,15 +794,18 @@ struct mlx5_ifc_cmd_hca_cap_bits { 
	u8         reserved_63[0x8];

	u8         log_uar_page_sz[0x10];



	u8         reserved_64[0x100];

	u8	   reserved_64[0x20];

	u8	   device_frequency_mhz[0x20];

	u8	   device_frequency_khz[0x20];

	u8         reserved_65[0xa0];



	u8         reserved_65[0x1f];

	u8         reserved_66[0x1f];

	u8         cqe_zip[0x1];



	u8         cqe_zip_timeout[0x10];

	u8         cqe_zip_max_num[0x10];



	u8         reserved_66[0x220];

	u8         reserved_67[0x220];

};



enum {