[v3 05/18] common/mlx5: query set capability of registers

[Alex Vesker <valex@nvidia.com>]

From: Bing Zhao <bingz@nvidia.com>

In the flow table capabilities, new fields are added to query the
capability to set, add, copy to a REG_C_x.

The set capability are queried and saved for the future usage.

Signed-off-by: Bing Zhao <bingz@nvidia.com>
---
 drivers/common/mlx5/mlx5_devx_cmds.c | 30 +++++++++++++++++++
 drivers/common/mlx5/mlx5_devx_cmds.h |  2 ++
 drivers/common/mlx5/mlx5_prm.h       | 45 +++++++++++++++++++++++++---
 3 files changed, 73 insertions(+), 4 deletions(-)

diff --git a/drivers/common/mlx5/mlx5_devx_cmds.c b/drivers/common/mlx5/mlx5_devx_cmds.c
index 76f0b6724f..9c185366d0 100644
--- a/drivers/common/mlx5/mlx5_devx_cmds.c
+++ b/drivers/common/mlx5/mlx5_devx_cmds.c
@@ -1064,6 +1064,24 @@ mlx5_devx_cmd_query_hca_attr(void *ctx,
 	attr->modify_outer_ip_ecn = MLX5_GET
 		(flow_table_nic_cap, hcattr,
 		 ft_header_modify_nic_receive.outer_ip_ecn);
+	attr->set_reg_c = 0xff;
+	if (attr->nic_flow_table) {
+#define GET_RX_REG_X_BITS \
+		MLX5_GET(flow_table_nic_cap, hcattr, \
+			 ft_header_modify_nic_receive.metadata_reg_c_x)
+#define GET_TX_REG_X_BITS \
+		MLX5_GET(flow_table_nic_cap, hcattr, \
+			 ft_header_modify_nic_transmit.metadata_reg_c_x)
+
+		uint32_t tx_reg, rx_reg;
+
+		tx_reg = GET_TX_REG_X_BITS;
+		rx_reg = GET_RX_REG_X_BITS;
+		attr->set_reg_c &= (rx_reg & tx_reg);
+
+#undef GET_RX_REG_X_BITS
+#undef GET_TX_REG_X_BITS
+	}
 	attr->pkt_integrity_match = mlx5_devx_query_pkt_integrity_match(hcattr);
 	attr->inner_ipv4_ihl = MLX5_GET
 		(flow_table_nic_cap, hcattr,
@@ -1163,6 +1181,18 @@ mlx5_devx_cmd_query_hca_attr(void *ctx,
 		attr->esw_mgr_vport_id =
 			MLX5_GET(esw_cap, hcattr, esw_manager_vport_number);
 	}
+	if (attr->eswitch_manager) {
+		uint32_t esw_reg;
+
+		hcattr = mlx5_devx_get_hca_cap(ctx, in, out, &rc,
+				MLX5_GET_HCA_CAP_OP_MOD_ESW_FLOW_TABLE |
+				MLX5_HCA_CAP_OPMOD_GET_CUR);
+		if (!hcattr)
+			return rc;
+		esw_reg = MLX5_GET(flow_table_esw_cap, hcattr,
+				   ft_header_modify_esw_fdb.metadata_reg_c_x);
+		attr->set_reg_c &= esw_reg;
+	}
 	return 0;
 error:
 	rc = (rc > 0) ? -rc : rc;
diff --git a/drivers/common/mlx5/mlx5_devx_cmds.h b/drivers/common/mlx5/mlx5_devx_cmds.h
index cceaf3411d..a10aa3331b 100644
--- a/drivers/common/mlx5/mlx5_devx_cmds.h
+++ b/drivers/common/mlx5/mlx5_devx_cmds.h
@@ -263,6 +263,8 @@ struct mlx5_hca_attr {
 	uint32_t crypto_wrapped_import_method:1;
 	uint16_t esw_mgr_vport_id; /* E-Switch Mgr vport ID . */
 	uint16_t max_wqe_sz_sq;
+	uint32_t set_reg_c:8;
+	uint32_t nic_flow_table:1;
 	uint32_t modify_outer_ip_ecn:1;
 };
 
diff --git a/drivers/common/mlx5/mlx5_prm.h b/drivers/common/mlx5/mlx5_prm.h
index 9c1c93f916..ca4763f53d 100644
--- a/drivers/common/mlx5/mlx5_prm.h
+++ b/drivers/common/mlx5/mlx5_prm.h
@@ -1295,6 +1295,7 @@ enum {
 	MLX5_GET_HCA_CAP_OP_MOD_QOS_CAP = 0xc << 1,
 	MLX5_GET_HCA_CAP_OP_MOD_ROCE = 0x4 << 1,
 	MLX5_GET_HCA_CAP_OP_MOD_NIC_FLOW_TABLE = 0x7 << 1,
+	MLX5_GET_HCA_CAP_OP_MOD_ESW_FLOW_TABLE = 0x8 << 1,
 	MLX5_SET_HCA_CAP_OP_MOD_ESW = 0x9 << 1,
 	MLX5_GET_HCA_CAP_OP_MOD_VDPA_EMULATION = 0x13 << 1,
 	MLX5_GET_HCA_CAP_OP_MOD_CRYPTO = 0x1A << 1,
@@ -1892,6 +1893,7 @@ struct mlx5_ifc_roce_caps_bits {
 };
 
 struct mlx5_ifc_ft_fields_support_bits {
+	/* set_action_field_support */
 	u8 outer_dmac[0x1];
 	u8 outer_smac[0x1];
 	u8 outer_ether_type[0x1];
@@ -1919,7 +1921,7 @@ struct mlx5_ifc_ft_fields_support_bits {
 	u8 outer_gre_key[0x1];
 	u8 outer_vxlan_vni[0x1];
 	u8 reserved_at_1a[0x5];
-	u8 source_eswitch_port[0x1];
+	u8 source_eswitch_port[0x1]; /* end of DW0 */
 	u8 inner_dmac[0x1];
 	u8 inner_smac[0x1];
 	u8 inner_ether_type[0x1];
@@ -1943,8 +1945,33 @@ struct mlx5_ifc_ft_fields_support_bits {
 	u8 inner_tcp_sport[0x1];
 	u8 inner_tcp_dport[0x1];
 	u8 inner_tcp_flags[0x1];
-	u8 reserved_at_37[0x9];
-	u8 reserved_at_40[0x40];
+	u8 reserved_at_37[0x9]; /* end of DW1 */
+	u8 reserved_at_40[0x20]; /* end of DW2 */
+	u8 reserved_at_60[0x18];
+	union {
+		struct {
+			u8 metadata_reg_c_7[0x1];
+			u8 metadata_reg_c_6[0x1];
+			u8 metadata_reg_c_5[0x1];
+			u8 metadata_reg_c_4[0x1];
+			u8 metadata_reg_c_3[0x1];
+			u8 metadata_reg_c_2[0x1];
+			u8 metadata_reg_c_1[0x1];
+			u8 metadata_reg_c_0[0x1];
+		};
+		u8 metadata_reg_c_x[0x8];
+	}; /* end of DW3 */
+	/* set_action_field_support_2 */
+	u8 reserved_at_80[0x80];
+	/* add_action_field_support */
+	u8 reserved_at_100[0x80];
+	/* add_action_field_support_2 */
+	u8 reserved_at_180[0x80];
+	/* copy_action_field_support */
+	u8 reserved_at_200[0x80];
+	/* copy_action_field_support_2 */
+	u8 reserved_at_280[0x80];
+	u8 reserved_at_300[0x100];
 };
 
 /*
@@ -1989,9 +2016,18 @@ struct mlx5_ifc_flow_table_nic_cap_bits {
 	u8 reserved_at_e00[0x200];
 	struct mlx5_ifc_ft_fields_support_bits
 		ft_header_modify_nic_receive;
-	u8 reserved_at_1080[0x380];
 	struct mlx5_ifc_ft_fields_support_2_bits
 		ft_field_support_2_nic_receive;
+	u8 reserved_at_1480[0x780];
+	struct mlx5_ifc_ft_fields_support_bits
+		ft_header_modify_nic_transmit;
+	u8 reserved_at_2000[0x6000];
+};
+
+struct mlx5_ifc_flow_table_esw_cap_bits {
+	u8 reserved_at_0[0x800];
+	struct mlx5_ifc_ft_fields_support_bits ft_header_modify_esw_fdb;
+	u8 reserved_at_C00[0x7400];
 };
 
 /*
@@ -2046,6 +2082,7 @@ union mlx5_ifc_hca_cap_union_bits {
 	struct mlx5_ifc_qos_cap_bits qos_cap;
 	struct mlx5_ifc_virtio_emulation_cap_bits vdpa_caps;
 	struct mlx5_ifc_flow_table_nic_cap_bits flow_table_nic_cap;
+	struct mlx5_ifc_flow_table_esw_cap_bits flow_table_esw_cap;
 	struct mlx5_ifc_esw_cap_bits esw_cap;
 	struct mlx5_ifc_roce_caps_bits roce_caps;
 	u8 reserved_at_0[0x8000];
-- 
2.18.1