From: Or Gerlitz <ogerlitz@mellanox.com>
Date: Sun, 25 Jun 2017 12:38:45 +0300
Subject: net/mlx5: Add hairpin definitions to the FW API
Patch-mainline: v4.16-rc1
Git-commit: 40817cdbb695de49fb1bfe857b0f440541cb22d8
References: bsc#1103990 FATE#326006

Add hairpin definitions to the IFC file.

This includes the HCA ID, few HCA hairpin capabilities, new
fields in RQ/SQ used later for the pairing and the WQ hairpin
data size attribute.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 include/linux/mlx5/mlx5_ifc.h |   37 ++++++++++++++++++++++++++++++-------
 1 file changed, 30 insertions(+), 7 deletions(-)

--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -1026,13 +1026,19 @@ struct mlx5_ifc_cmd_hca_cap_bits {
 	u8         reserved_at_3b8[0x3];
 	u8         log_min_stride_sz_sq[0x5];
 
-	u8         reserved_at_3c0[0x1b];
+	u8         hairpin[0x1];
+	u8         reserved_at_3c1[0x2];
+	u8         log_max_hairpin_queues[0x5];
+	u8         reserved_at_3c8[0x3];
+	u8         log_max_hairpin_wq_data_sz[0x5];
+	u8         reserved_at_3d0[0xb];
 	u8         log_max_wq_sz[0x5];
 
 	u8         nic_vport_change_event[0x1];
 	u8         disable_local_lb_uc[0x1];
 	u8         disable_local_lb_mc[0x1];
-	u8         reserved_at_3e3[0x8];
+	u8         log_min_hairpin_wq_data_sz[0x5];
+	u8         reserved_at_3e8[0x3];
 	u8         log_max_vlan_list[0x5];
 	u8         reserved_at_3f0[0x3];
 	u8         log_max_current_mc_list[0x5];
@@ -1171,7 +1177,10 @@ struct mlx5_ifc_wq_bits {
 	u8         reserved_at_118[0x3];
 	u8         log_wq_sz[0x5];
 
-	u8         reserved_at_120[0x15];
+	u8         reserved_at_120[0xb];
+	u8         log_hairpin_data_sz[0x5];
+	u8         reserved_at_130[0x5];
+
 	u8         log_wqe_num_of_strides[0x3];
 	u8         two_byte_shift_en[0x1];
 	u8         reserved_at_139[0x4];
@@ -2491,7 +2500,8 @@ struct mlx5_ifc_sqc_bits {
 	u8         state[0x4];
 	u8         reg_umr[0x1];
 	u8         allow_swp[0x1];
-	u8         reserved_at_e[0x12];
+	u8         hairpin[0x1];
+	u8         reserved_at_f[0x11];
 
 	u8         reserved_at_20[0x8];
 	u8         user_index[0x18];
@@ -2499,7 +2509,13 @@ struct mlx5_ifc_sqc_bits {
 	u8         reserved_at_40[0x8];
 	u8         cqn[0x18];
 
-	u8         reserved_at_60[0x90];
+	u8         reserved_at_60[0x8];
+	u8         hairpin_peer_rq[0x18];
+
+	u8         reserved_at_80[0x10];
+	u8         hairpin_peer_vhca[0x10];
+
+	u8         reserved_at_a0[0x50];
 
 	u8         packet_pacing_rate_limit_index[0x10];
 	u8         tis_lst_sz[0x10];
@@ -2571,7 +2587,8 @@ struct mlx5_ifc_rqc_bits {
 	u8         state[0x4];
 	u8         reserved_at_c[0x1];
 	u8         flush_in_error_en[0x1];
-	u8         reserved_at_e[0x12];
+	u8         hairpin[0x1];
+	u8         reserved_at_f[0x11];
 
 	u8         reserved_at_20[0x8];
 	u8         user_index[0x18];
@@ -2585,7 +2602,13 @@ struct mlx5_ifc_rqc_bits {
 	u8         reserved_at_80[0x8];
 	u8         rmpn[0x18];
 
-	u8         reserved_at_a0[0xe0];
+	u8         reserved_at_a0[0x8];
+	u8         hairpin_peer_sq[0x18];
+
+	u8         reserved_at_c0[0x10];
+	u8         hairpin_peer_vhca[0x10];
+
+	u8         reserved_at_e0[0xa0];
 
 	struct mlx5_ifc_wq_bits wq;
 };