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net/mlx5: Introduce set delay drop command

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Add support to SET_DELAY_DROP command.

This command will be used in downstream patches for delay packet drop.
The timeout value should be indicated by delay_drop_timeout field.
Packet processing will be delayed till timeout value passed or until
more WQEs are posted.

Setting this value to 0 disables the feature.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Maor Gottlieb
2017-05-30 10:29:11 +03:00
committed by Doug Ledford
parent 7d9336d80b
commit c1e0bfc131
3 changed files with 41 additions and 1 deletions
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25
include/linux/mlx5/mlx5_ifc.h
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@@ -200,6 +200,7 @@ enum {
MLX5_CMD_OP_QUERY_SQ = 0x907,
MLX5_CMD_OP_CREATE_RQ = 0x908,
MLX5_CMD_OP_MODIFY_RQ = 0x909,
MLX5_CMD_OP_SET_DELAY_DROP_PARAMS = 0x910,
MLX5_CMD_OP_DESTROY_RQ = 0x90a,
MLX5_CMD_OP_QUERY_RQ = 0x90b,
MLX5_CMD_OP_CREATE_RMP = 0x90c,
@@ -840,7 +841,7 @@ struct mlx5_ifc_cmd_hca_cap_bits {
u8 retransmission_q_counters[0x1];
u8 reserved_at_183[0x1];
u8 modify_rq_counter_set_id[0x1];
u8 reserved_at_185[0x1];
u8 rq_delay_drop[0x1];
u8 max_qp_cnt[0xa];
u8 pkey_table_size[0x10];
@@ -5853,6 +5854,28 @@ struct mlx5_ifc_destroy_rq_in_bits {
u8 reserved_at_60[0x20];
};
struct mlx5_ifc_set_delay_drop_params_in_bits {
u8 opcode[0x10];
u8 reserved_at_10[0x10];
u8 reserved_at_20[0x10];
u8 op_mod[0x10];
u8 reserved_at_40[0x20];
u8 reserved_at_60[0x10];
u8 delay_drop_timeout[0x10];
};
struct mlx5_ifc_set_delay_drop_params_out_bits {
u8 status[0x8];
u8 reserved_at_8[0x18];
u8 syndrome[0x20];
u8 reserved_at_40[0x40];
};
struct mlx5_ifc_destroy_rmp_out_bits {
u8 status[0x8];
u8 reserved_at_8[0x18];