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Message-Id: <1472035154-14517-6-git-send-email-saeedm@mellanox.com>
Date: Wed, 24 Aug 2016 13:39:04 +0300
From: Saeed Mahameed <saeedm@...lanox.com>
To: "David S. Miller" <davem@...emloft.net>,
Doug Ledford <dledford@...hat.com>
Cc: netdev@...r.kernel.org, linux-rdma@...r.kernel.org,
Leon Romanovsky <leonro@...lanox.com>,
Tal Alon <talal@...lanox.com>,
Matan Barak <matanb@...lanox.com>,
Majd Dibbiny <majd@...lanox.com>,
Aviv Heller <avivh@...lanox.com>,
Saeed Mahameed <saeedm@...lanox.com>,
Leon Romanovsky <leon@...nel.org>
Subject: [PATCH for-next 05/15] net/mlx5: Add HW interfaces used by LAG
From: Aviv Heller <avivh@...lanox.com>
Exposed LAG commands enum and layouts:
- CREATE_LAG
HW enters LAG mode:
RoCE traffic from port two is received on PF0 core dev.
Allows to set tx_affinity (tx port) for QPs and TISes.
Allows to port remap QPs and TISes, overriding their
tx_affinity behavior.
- MODIFY_LAG
Remap QPs and TISes to another port.
- QUERY_LAG
Query whether LAG mode is active.
- DESTROY_LAG
HW exits LAG mode, returning to non-LAG behavior.
- CREATE_VPORT_LAG
Merge Ethernet flow steering, such that traffic received on port
two jumps to PF0 root flow table.
Available only in LAG mode.
- DESTROY_VPORT_LAG
Ethernet flow steering returns to non-LAG behavior.
Caps added:
- lag_master
Driver is in charge of managing the LAG.
This is currently the only option.
- num_lag_ports
LAG is supported only if this field's value is 2.
Other fields:
- QP/TIS tx port affinity
During LAG, this field controls on which port a QP or TIS resides.
- TIS strict tx affinity
When this field is set, the TIS will not be subject to port remap by
CREATE_LAG/MODIFY_LAG.
- LAG demux flow table
Flow table used for redirecting non user-space traffic back to
PF1 root flow table, if the packet was received on port two.
Signed-off-by: Aviv Heller <avivh@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
Signed-off-by: Leon Romanovsky <leon@...nel.org>
---
drivers/net/ethernet/mellanox/mlx5/core/cmd.c | 12 ++
include/linux/mlx5/mlx5_ifc.h | 166 ++++++++++++++++++++++++--
2 files changed, 171 insertions(+), 7 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
index 00bec60..6388bc0 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
@@ -285,6 +285,8 @@ static int mlx5_internal_err_ret_value(struct mlx5_core_dev *dev, u16 op,
case MLX5_CMD_OP_DEALLOC_TRANSPORT_DOMAIN:
case MLX5_CMD_OP_DELETE_VXLAN_UDP_DPORT:
case MLX5_CMD_OP_DELETE_L2_TABLE_ENTRY:
+ case MLX5_CMD_OP_DESTROY_LAG:
+ case MLX5_CMD_OP_DESTROY_VPORT_LAG:
case MLX5_CMD_OP_DESTROY_TIR:
case MLX5_CMD_OP_DESTROY_SQ:
case MLX5_CMD_OP_DESTROY_RQ:
@@ -376,6 +378,10 @@ static int mlx5_internal_err_ret_value(struct mlx5_core_dev *dev, u16 op,
case MLX5_CMD_OP_ADD_VXLAN_UDP_DPORT:
case MLX5_CMD_OP_SET_L2_TABLE_ENTRY:
case MLX5_CMD_OP_QUERY_L2_TABLE_ENTRY:
+ case MLX5_CMD_OP_CREATE_LAG:
+ case MLX5_CMD_OP_MODIFY_LAG:
+ case MLX5_CMD_OP_QUERY_LAG:
+ case MLX5_CMD_OP_CREATE_VPORT_LAG:
case MLX5_CMD_OP_CREATE_TIR:
case MLX5_CMD_OP_MODIFY_TIR:
case MLX5_CMD_OP_QUERY_TIR:
@@ -514,6 +520,12 @@ const char *mlx5_command_str(int command)
MLX5_COMMAND_STR_CASE(DELETE_L2_TABLE_ENTRY);
MLX5_COMMAND_STR_CASE(SET_WOL_ROL);
MLX5_COMMAND_STR_CASE(QUERY_WOL_ROL);
+ MLX5_COMMAND_STR_CASE(CREATE_LAG);
+ MLX5_COMMAND_STR_CASE(MODIFY_LAG);
+ MLX5_COMMAND_STR_CASE(QUERY_LAG);
+ MLX5_COMMAND_STR_CASE(DESTROY_LAG);
+ MLX5_COMMAND_STR_CASE(CREATE_VPORT_LAG);
+ MLX5_COMMAND_STR_CASE(DESTROY_VPORT_LAG);
MLX5_COMMAND_STR_CASE(CREATE_TIR);
MLX5_COMMAND_STR_CASE(MODIFY_TIR);
MLX5_COMMAND_STR_CASE(DESTROY_TIR);
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index 5f150c8..043d525 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -174,6 +174,12 @@ enum {
MLX5_CMD_OP_DELETE_L2_TABLE_ENTRY = 0x82b,
MLX5_CMD_OP_SET_WOL_ROL = 0x830,
MLX5_CMD_OP_QUERY_WOL_ROL = 0x831,
+ MLX5_CMD_OP_CREATE_LAG = 0x840,
+ MLX5_CMD_OP_MODIFY_LAG = 0x841,
+ MLX5_CMD_OP_QUERY_LAG = 0x842,
+ MLX5_CMD_OP_DESTROY_LAG = 0x843,
+ MLX5_CMD_OP_CREATE_VPORT_LAG = 0x844,
+ MLX5_CMD_OP_DESTROY_VPORT_LAG = 0x845,
MLX5_CMD_OP_CREATE_TIR = 0x900,
MLX5_CMD_OP_MODIFY_TIR = 0x901,
MLX5_CMD_OP_DESTROY_TIR = 0x902,
@@ -884,7 +890,10 @@ struct mlx5_ifc_cmd_hca_cap_bits {
u8 pad_tx_eth_packet[0x1];
u8 reserved_at_263[0x8];
u8 log_bf_reg_size[0x5];
- u8 reserved_at_270[0x10];
+
+ u8 reserved_at_270[0xb];
+ u8 lag_master[0x1];
+ u8 num_lag_ports[0x4];
u8 reserved_at_280[0x10];
u8 max_wqe_sz_sq[0x10];
@@ -1918,7 +1927,7 @@ enum {
struct mlx5_ifc_qpc_bits {
u8 state[0x4];
- u8 reserved_at_4[0x4];
+ u8 lag_tx_port_affinity[0x4];
u8 st[0x8];
u8 reserved_at_10[0x3];
u8 pm_state[0x2];
@@ -2167,7 +2176,11 @@ struct mlx5_ifc_traffic_counter_bits {
};
struct mlx5_ifc_tisc_bits {
- u8 reserved_at_0[0xc];
+ u8 strict_lag_tx_port_affinity[0x1];
+ u8 reserved_at_1[0x3];
+ u8 lag_tx_port_affinity[0x04];
+
+ u8 reserved_at_8[0x4];
u8 prio[0x4];
u8 reserved_at_10[0x10];
@@ -4617,7 +4630,9 @@ struct mlx5_ifc_modify_tis_out_bits {
struct mlx5_ifc_modify_tis_bitmask_bits {
u8 reserved_at_0[0x20];
- u8 reserved_at_20[0x1f];
+ u8 reserved_at_20[0x1d];
+ u8 lag_tx_port_affinity[0x1];
+ u8 strict_lag_tx_port_affinity[0x1];
u8 prio[0x1];
};
@@ -6215,7 +6230,10 @@ struct mlx5_ifc_create_flow_table_in_bits {
u8 reserved_at_e0[0x8];
u8 table_miss_id[0x18];
- u8 reserved_at_100[0x100];
+ u8 reserved_at_100[0x8];
+ u8 lag_master_next_table_id[0x18];
+
+ u8 reserved_at_120[0x80];
};
struct mlx5_ifc_create_flow_group_out_bits {
@@ -7669,7 +7687,8 @@ struct mlx5_ifc_set_flow_table_root_in_bits {
};
enum {
- MLX5_MODIFY_FLOW_TABLE_MISS_TABLE_ID = 0x1,
+ MLX5_MODIFY_FLOW_TABLE_MISS_TABLE_ID = (1UL << 0),
+ MLX5_MODIFY_FLOW_TABLE_LAG_NEXT_TABLE_ID = (1UL << 15),
};
struct mlx5_ifc_modify_flow_table_out_bits {
@@ -7708,7 +7727,10 @@ struct mlx5_ifc_modify_flow_table_in_bits {
u8 reserved_at_e0[0x8];
u8 table_miss_id[0x18];
- u8 reserved_at_100[0x100];
+ u8 reserved_at_100[0x8];
+ u8 lag_master_next_table_id[0x18];
+
+ u8 reserved_at_120[0x80];
};
struct mlx5_ifc_ets_tcn_config_reg_bits {
@@ -7816,4 +7838,134 @@ struct mlx5_ifc_dcbx_param_bits {
u8 error[0x8];
u8 reserved_at_a0[0x160];
};
+
+struct mlx5_ifc_lagc_bits {
+ u8 reserved_at_0[0x1d];
+ u8 lag_state[0x3];
+
+ u8 reserved_at_20[0x14];
+ u8 tx_remap_affinity_2[0x4];
+ u8 reserved_at_38[0x4];
+ u8 tx_remap_affinity_1[0x4];
+};
+
+struct mlx5_ifc_create_lag_out_bits {
+ u8 status[0x8];
+ u8 reserved_at_8[0x18];
+
+ u8 syndrome[0x20];
+
+ u8 reserved_at_40[0x40];
+};
+
+struct mlx5_ifc_create_lag_in_bits {
+ u8 opcode[0x10];
+ u8 reserved_at_10[0x10];
+
+ u8 reserved_at_20[0x10];
+ u8 op_mod[0x10];
+
+ struct mlx5_ifc_lagc_bits ctx;
+};
+
+struct mlx5_ifc_modify_lag_out_bits {
+ u8 status[0x8];
+ u8 reserved_at_8[0x18];
+
+ u8 syndrome[0x20];
+
+ u8 reserved_at_40[0x40];
+};
+
+struct mlx5_ifc_modify_lag_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 field_select[0x20];
+
+ struct mlx5_ifc_lagc_bits ctx;
+};
+
+struct mlx5_ifc_query_lag_out_bits {
+ u8 status[0x8];
+ u8 reserved_at_8[0x18];
+
+ u8 syndrome[0x20];
+
+ u8 reserved_at_40[0x40];
+
+ struct mlx5_ifc_lagc_bits ctx;
+};
+
+struct mlx5_ifc_query_lag_in_bits {
+ u8 opcode[0x10];
+ u8 reserved_at_10[0x10];
+
+ u8 reserved_at_20[0x10];
+ u8 op_mod[0x10];
+
+ u8 reserved_at_40[0x40];
+};
+
+struct mlx5_ifc_destroy_lag_out_bits {
+ u8 status[0x8];
+ u8 reserved_at_8[0x18];
+
+ u8 syndrome[0x20];
+
+ u8 reserved_at_40[0x40];
+};
+
+struct mlx5_ifc_destroy_lag_in_bits {
+ u8 opcode[0x10];
+ u8 reserved_at_10[0x10];
+
+ u8 reserved_at_20[0x10];
+ u8 op_mod[0x10];
+
+ u8 reserved_at_40[0x40];
+};
+
+struct mlx5_ifc_create_vport_lag_out_bits {
+ u8 status[0x8];
+ u8 reserved_at_8[0x18];
+
+ u8 syndrome[0x20];
+
+ u8 reserved_at_40[0x40];
+};
+
+struct mlx5_ifc_create_vport_lag_in_bits {
+ u8 opcode[0x10];
+ u8 reserved_at_10[0x10];
+
+ u8 reserved_at_20[0x10];
+ u8 op_mod[0x10];
+
+ u8 reserved_at_40[0x40];
+};
+
+struct mlx5_ifc_destroy_vport_lag_out_bits {
+ u8 status[0x8];
+ u8 reserved_at_8[0x18];
+
+ u8 syndrome[0x20];
+
+ u8 reserved_at_40[0x40];
+};
+
+struct mlx5_ifc_destroy_vport_lag_in_bits {
+ u8 opcode[0x10];
+ u8 reserved_at_10[0x10];
+
+ u8 reserved_at_20[0x10];
+ u8 op_mod[0x10];
+
+ u8 reserved_at_40[0x40];
+};
+
#endif /* MLX5_IFC_H */
--
2.7.4
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