net/mlx5: query LRO capabilities via DevX

Update function mlx5_devx_cmd_query_hca_attr() to query HCA
capabilities related to LRO.

Add relevant structs in drivers/net/mlx5/mlx5_prm.h.

Signed-off-by: Dekel Peled <dekelp@mellanox.com>
Acked-by: Matan Azrad <matan@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>

diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h
index e494572..738c55b 100644 (file)
--- a/drivers/net/mlx5/mlx5.h
+++ b/drivers/net/mlx5/mlx5.h
@@ -165,6 +165,9 @@ struct mlx5_devx_mkey_attr {
        uint32_t pd;
 };
 
+/* HCA supports this number of time periods for LRO. */
+#define MLX5_LRO_NUM_SUPP_PERIODS 4
+
 /* HCA attributes. */
 struct mlx5_hca_attr {
        uint32_t eswitch_manager:1;
@@ -175,6 +178,11 @@ struct mlx5_hca_attr {
        uint32_t wqe_vlan_insert:1;
        uint32_t wqe_inline_mode:2;
        uint32_t vport_inline_mode:3;
+       uint32_t lro_cap:1;
+       uint32_t tunnel_lro_gre:1;
+       uint32_t tunnel_lro_vxlan:1;
+       uint32_t lro_max_msg_sz_mode:2;
+       uint32_t lro_timer_supported_periods[MLX5_LRO_NUM_SUPP_PERIODS];
 };
 
 /* Flow list . */

diff --git a/drivers/net/mlx5/mlx5_devx_cmds.c b/drivers/net/mlx5/mlx5_devx_cmds.c
index 18f8ab6..1cba00f 100644 (file)
--- a/drivers/net/mlx5/mlx5_devx_cmds.c
+++ b/drivers/net/mlx5/mlx5_devx_cmds.c
@@ -360,6 +360,20 @@ mlx5_devx_cmd_query_hca_attr(struct ibv_context *ctx,
        hcattr = MLX5_ADDR_OF(query_hca_cap_out, out, capability);
        attr->wqe_vlan_insert = MLX5_GET(per_protocol_networking_offload_caps,
                                         hcattr, wqe_vlan_insert);
+       attr->lro_cap = MLX5_GET(per_protocol_networking_offload_caps, hcattr,
+                                lro_cap);
+       attr->tunnel_lro_gre = MLX5_GET(per_protocol_networking_offload_caps,
+                                       hcattr, tunnel_lro_gre);
+       attr->tunnel_lro_vxlan = MLX5_GET(per_protocol_networking_offload_caps,
+                                         hcattr, tunnel_lro_vxlan);
+       attr->lro_max_msg_sz_mode = MLX5_GET
+                                       (per_protocol_networking_offload_caps,
+                                        hcattr, lro_max_msg_sz_mode);
+       for (int i = 0 ; i < MLX5_LRO_NUM_SUPP_PERIODS ; i++) {
+               attr->lro_timer_supported_periods[i] =
+                       MLX5_GET(per_protocol_networking_offload_caps, hcattr,
+                                lro_timer_supported_periods[i]);
+       }
        attr->wqe_inline_mode = MLX5_GET(per_protocol_networking_offload_caps,
                                         hcattr, wqe_inline_mode);
        if (attr->wqe_inline_mode != MLX5_CAP_INLINE_MODE_VPORT_CONTEXT)

diff --git a/drivers/net/mlx5/mlx5_prm.h b/drivers/net/mlx5/mlx5_prm.h
index 3c2b3d8..4f20dea 100644 (file)
--- a/drivers/net/mlx5/mlx5_prm.h
+++ b/drivers/net/mlx5/mlx5_prm.h
@@ -1084,16 +1084,42 @@ struct mlx5_ifc_cmd_hca_cap_bits {
        u8 reserved_at_61f[0x1e1];
 };
 
+struct mlx5_ifc_qos_cap_bits {
+       u8 packet_pacing[0x1];
+       u8 esw_scheduling[0x1];
+       u8 esw_bw_share[0x1];
+       u8 esw_rate_limit[0x1];
+       u8 reserved_at_4[0x1];
+       u8 packet_pacing_burst_bound[0x1];
+       u8 packet_pacing_typical_size[0x1];
+       u8 flow_meter_srtcm[0x1];
+       u8 reserved_at_8[0x8];
+       u8 log_max_flow_meter[0x8];
+       u8 flow_meter_reg_id[0x8];
+       u8 reserved_at_25[0x20];
+       u8 packet_pacing_max_rate[0x20];
+       u8 packet_pacing_min_rate[0x20];
+       u8 reserved_at_80[0x10];
+       u8 packet_pacing_rate_table_size[0x10];
+       u8 esw_element_type[0x10];
+       u8 esw_tsar_type[0x10];
+       u8 reserved_at_c0[0x10];
+       u8 max_qos_para_vport[0x10];
+       u8 max_tsar_bw_share[0x20];
+       u8 reserved_at_100[0x6e8];
+};
+
 struct mlx5_ifc_per_protocol_networking_offload_caps_bits {
        u8 csum_cap[0x1];
        u8 vlan_cap[0x1];
        u8 lro_cap[0x1];
        u8 lro_psh_flag[0x1];
        u8 lro_time_stamp[0x1];
-       u8 reserved_at_5[0x2];
+       u8 lro_max_msg_sz_mode[0x2];
        u8 wqe_vlan_insert[0x1];
        u8 self_lb_en_modifiable[0x1];
-       u8 reserved_at_9[0x2];
+       u8 self_lb_mc[0x1];
+       u8 self_lb_uc[0x1];
        u8 max_lso_cap[0x5];
        u8 multi_pkt_send_wqe[0x2];
        u8 wqe_inline_mode[0x2];
@@ -1102,7 +1128,8 @@ struct mlx5_ifc_per_protocol_networking_offload_caps_bits {
        u8 scatter_fcs[0x1];
        u8 enhanced_multi_pkt_send_wqe[0x1];
        u8 tunnel_lso_const_out_ip_id[0x1];
-       u8 reserved_at_1c[0x2];
+       u8 tunnel_lro_gre[0x1];
+       u8 tunnel_lro_vxlan[0x1];
        u8 tunnel_stateless_gre[0x1];
        u8 tunnel_stateless_vxlan[0x1];
        u8 swp[0x1];
@@ -1120,31 +1147,6 @@ struct mlx5_ifc_per_protocol_networking_offload_caps_bits {
        u8 reserved_at_200[0x600];
 };
 
-struct mlx5_ifc_qos_cap_bits {
-       u8 packet_pacing[0x1];
-       u8 esw_scheduling[0x1];
-       u8 esw_bw_share[0x1];
-       u8 esw_rate_limit[0x1];
-       u8 reserved_at_4[0x1];
-       u8 packet_pacing_burst_bound[0x1];
-       u8 packet_pacing_typical_size[0x1];
-       u8 flow_meter_srtcm[0x1];
-       u8 reserved_at_8[0x8];
-       u8 log_max_flow_meter[0x8];
-       u8 flow_meter_reg_id[0x8];
-       u8 reserved_at_25[0x20];
-       u8 packet_pacing_max_rate[0x20];
-       u8 packet_pacing_min_rate[0x20];
-       u8 reserved_at_80[0x10];
-       u8 packet_pacing_rate_table_size[0x10];
-       u8 esw_element_type[0x10];
-       u8 esw_tsar_type[0x10];
-       u8 reserved_at_c0[0x10];
-       u8 max_qos_para_vport[0x10];
-       u8 max_tsar_bw_share[0x20];
-       u8 reserved_at_100[0x6e8];
-};
-
 union mlx5_ifc_hca_cap_union_bits {
        struct mlx5_ifc_cmd_hca_cap_bits cmd_hca_cap;
        struct mlx5_ifc_per_protocol_networking_offload_caps_bits