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net/mlx5: Expose timeout for sync reset unload stage
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Expose new timoueout in Default Timeouts Register to be used on sync
reset flow running on smart NIC. In this flow the driver should know how
much time to wait from getting unload request till firmware will ask the
PF to continue to next stage of the flow.

Signed-off-by: Moshe Shemesh <[email protected]>
Reviewed-by: Shay Drory <[email protected]>
Signed-off-by: Saeed Mahameed <[email protected]>
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mosheshemesh2 authored and Saeed Mahameed committed Jun 16, 2023
1 parent 92501fa commit 8bb42ed
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Showing 3 changed files with 7 additions and 2 deletions.
4 changes: 3 additions & 1 deletion drivers/net/ethernet/mellanox/mlx5/core/lib/tout.c
Original file line number Diff line number Diff line change
Expand Up @@ -24,7 +24,8 @@ static const u32 tout_def_sw_val[MAX_TIMEOUT_TYPES] = {
[MLX5_TO_TEARDOWN_MS] = 3000,
[MLX5_TO_FSM_REACTIVATE_MS] = 5000,
[MLX5_TO_RECLAIM_PAGES_MS] = 5000,
[MLX5_TO_RECLAIM_VFS_PAGES_MS] = 120000
[MLX5_TO_RECLAIM_VFS_PAGES_MS] = 120000,
[MLX5_TO_RESET_UNLOAD_MS] = 300000
};

static void tout_set(struct mlx5_core_dev *dev, u64 val, enum mlx5_timeouts_types type)
Expand Down Expand Up @@ -146,6 +147,7 @@ static int tout_query_dtor(struct mlx5_core_dev *dev)
MLX5_TIMEOUT_FILL(fsm_reactivate_to, out, dev, MLX5_TO_FSM_REACTIVATE_MS, 0);
MLX5_TIMEOUT_FILL(reclaim_pages_to, out, dev, MLX5_TO_RECLAIM_PAGES_MS, 0);
MLX5_TIMEOUT_FILL(reclaim_vfs_pages_to, out, dev, MLX5_TO_RECLAIM_VFS_PAGES_MS, 0);
MLX5_TIMEOUT_FILL(reset_unload_to, out, dev, MLX5_TO_RESET_UNLOAD_MS, 0);

return 0;
}
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1 change: 1 addition & 0 deletions drivers/net/ethernet/mellanox/mlx5/core/lib/tout.h
Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,7 @@ enum mlx5_timeouts_types {
MLX5_TO_FSM_REACTIVATE_MS,
MLX5_TO_RECLAIM_PAGES_MS,
MLX5_TO_RECLAIM_VFS_PAGES_MS,
MLX5_TO_RESET_UNLOAD_MS,

MAX_TIMEOUT_TYPES
};
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4 changes: 3 additions & 1 deletion include/linux/mlx5/mlx5_ifc.h
Original file line number Diff line number Diff line change
Expand Up @@ -3117,7 +3117,9 @@ struct mlx5_ifc_dtor_reg_bits {

struct mlx5_ifc_default_timeout_bits reclaim_vfs_pages_to;

u8 reserved_at_1c0[0x40];
struct mlx5_ifc_default_timeout_bits reset_unload_to;

u8 reserved_at_1c0[0x20];
};

enum {
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