mlx5dr.h

  1/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
  2/* Copyright (c) 2019, Mellanox Technologies */
  3
  4#ifndef _MLX5DR_H_
  5#define _MLX5DR_H_
  6
  7struct mlx5dr_domain;
  8struct mlx5dr_table;
  9struct mlx5dr_matcher;
 10struct mlx5dr_rule;
 11struct mlx5dr_action;
 12
 13enum mlx5dr_domain_type {
 14	MLX5DR_DOMAIN_TYPE_NIC_RX,
 15	MLX5DR_DOMAIN_TYPE_NIC_TX,
 16	MLX5DR_DOMAIN_TYPE_FDB,
 17};
 18
 19enum mlx5dr_domain_sync_flags {
 20	MLX5DR_DOMAIN_SYNC_FLAGS_SW = 1 << 0,
 21	MLX5DR_DOMAIN_SYNC_FLAGS_HW = 1 << 1,
 22};
 23
 24enum mlx5dr_action_reformat_type {
 25	DR_ACTION_REFORMAT_TYP_TNL_L2_TO_L2,
 26	DR_ACTION_REFORMAT_TYP_L2_TO_TNL_L2,
 27	DR_ACTION_REFORMAT_TYP_TNL_L3_TO_L2,
 28	DR_ACTION_REFORMAT_TYP_L2_TO_TNL_L3,
 29	DR_ACTION_REFORMAT_TYP_INSERT_HDR,
 30	DR_ACTION_REFORMAT_TYP_REMOVE_HDR,
 31};
 32
 33struct mlx5dr_match_parameters {
 34	size_t match_sz;
 35	u64 *match_buf; /* Device spec format */
 36};
 37
 38struct mlx5dr_action_dest {
 39	struct mlx5dr_action *dest;
 40	struct mlx5dr_action *reformat;
 41};
 42
 43struct mlx5dr_domain *
 44mlx5dr_domain_create(struct mlx5_core_dev *mdev, enum mlx5dr_domain_type type);
 45
 46int mlx5dr_domain_destroy(struct mlx5dr_domain *domain);
 47
 48void mlx5dr_domain_set_peer(struct mlx5dr_domain *dmn,
 49			    struct mlx5dr_domain *peer_dmn,
 50			    u16 peer_vhca_id);
 51
 52struct mlx5dr_table *
 53mlx5dr_table_create(struct mlx5dr_domain *domain, u32 level, u32 flags,
 54		    u16 uid);
 55
 56struct mlx5dr_table *
 57mlx5dr_table_get_from_fs_ft(struct mlx5_flow_table *ft);
 58
 59int mlx5dr_table_destroy(struct mlx5dr_table *table);
 60
 61u32 mlx5dr_table_get_id(struct mlx5dr_table *table);
 62
 63struct mlx5dr_matcher *
 64mlx5dr_matcher_create(struct mlx5dr_table *table,
 65		      u32 priority,
 66		      u8 match_criteria_enable,
 67		      struct mlx5dr_match_parameters *mask);
 68
 69int mlx5dr_matcher_destroy(struct mlx5dr_matcher *matcher);
 70
 71struct mlx5dr_rule *
 72mlx5dr_rule_create(struct mlx5dr_matcher *matcher,
 73		   struct mlx5dr_match_parameters *value,
 74		   size_t num_actions,
 75		   struct mlx5dr_action *actions[],
 76		   u32 flow_source);
 77
 78int mlx5dr_rule_destroy(struct mlx5dr_rule *rule);
 79
 80int mlx5dr_table_set_miss_action(struct mlx5dr_table *tbl,
 81				 struct mlx5dr_action *action);
 82
 83struct mlx5dr_action *
 84mlx5dr_action_create_dest_table_num(struct mlx5dr_domain *dmn, u32 table_num);
 85
 86struct mlx5dr_action *
 87mlx5dr_action_create_dest_table(struct mlx5dr_table *table);
 88
 89struct mlx5dr_action *
 90mlx5dr_action_create_dest_flow_fw_table(struct mlx5dr_domain *domain,
 91					struct mlx5_flow_table *ft);
 92
 93struct mlx5dr_action *
 94mlx5dr_action_create_dest_vport(struct mlx5dr_domain *domain,
 95				u16 vport, u8 vhca_id_valid,
 96				u16 vhca_id);
 97
 98struct mlx5dr_action *
 99mlx5dr_action_create_mult_dest_tbl(struct mlx5dr_domain *dmn,
100				   struct mlx5dr_action_dest *dests,
101				   u32 num_of_dests,
102				   bool ignore_flow_level,
103				   u32 flow_source);
104
105struct mlx5dr_action *mlx5dr_action_create_drop(void);
106
107struct mlx5dr_action *mlx5dr_action_create_tag(u32 tag_value);
108
109struct mlx5dr_action *
110mlx5dr_action_create_flow_sampler(struct mlx5dr_domain *dmn, u32 sampler_id);
111
112struct mlx5dr_action *
113mlx5dr_action_create_flow_counter(u32 counter_id);
114
115struct mlx5dr_action *
116mlx5dr_action_create_packet_reformat(struct mlx5dr_domain *dmn,
117				     enum mlx5dr_action_reformat_type reformat_type,
118				     u8 reformat_param_0,
119				     u8 reformat_param_1,
120				     size_t data_sz,
121				     void *data);
122
123struct mlx5dr_action *
124mlx5dr_action_create_modify_header(struct mlx5dr_domain *domain,
125				   u32 flags,
126				   size_t actions_sz,
127				   __be64 actions[]);
128
129struct mlx5dr_action *mlx5dr_action_create_pop_vlan(void);
130
131struct mlx5dr_action *
132mlx5dr_action_create_push_vlan(struct mlx5dr_domain *domain, __be32 vlan_hdr);
133
134struct mlx5dr_action *
135mlx5dr_action_create_aso(struct mlx5dr_domain *dmn,
136			 u32 obj_id,
137			 u8 return_reg_id,
138			 u8 aso_type,
139			 u8 init_color,
140			 u8 meter_id);
141
142struct mlx5dr_action *
143mlx5dr_action_create_dest_match_range(struct mlx5dr_domain *dmn,
144				      u32 field,
145				      struct mlx5_flow_table *hit_ft,
146				      struct mlx5_flow_table *miss_ft,
147				      u32 min,
148				      u32 max);
149
150int mlx5dr_action_destroy(struct mlx5dr_action *action);
151
152u32 mlx5dr_action_get_pkt_reformat_id(struct mlx5dr_action *action);
153
154static inline bool
155mlx5dr_is_supported(struct mlx5_core_dev *dev)
156{
157	return MLX5_CAP_GEN(dev, roce) &&
158	       (MLX5_CAP_ESW_FLOWTABLE_FDB(dev, sw_owner) ||
159		(MLX5_CAP_ESW_FLOWTABLE_FDB(dev, sw_owner_v2) &&
160		 (MLX5_CAP_GEN(dev, steering_format_version) <=
161		  MLX5_STEERING_FORMAT_CONNECTX_8)));
162}
163
164/* buddy functions & structure */
165
166struct mlx5dr_icm_mr;
167
168struct mlx5dr_icm_buddy_mem {
169	unsigned long		**bitmap;
170	unsigned int		*num_free;
171	u32			max_order;
172	struct list_head	list_node;
173	struct mlx5dr_icm_mr	*icm_mr;
174	struct mlx5dr_icm_pool	*pool;
175
176	/* Amount of memory in used chunks - HW may be accessing this memory */
177	u64			used_memory;
178
179	/* Memory optimisation */
180	struct mlx5dr_ste	*ste_arr;
181	struct list_head	*miss_list;
182	u8			*hw_ste_arr;
183};
184
185int mlx5dr_buddy_init(struct mlx5dr_icm_buddy_mem *buddy,
186		      unsigned int max_order);
187void mlx5dr_buddy_cleanup(struct mlx5dr_icm_buddy_mem *buddy);
188int mlx5dr_buddy_alloc_mem(struct mlx5dr_icm_buddy_mem *buddy,
189			   unsigned int order,
190			   unsigned int *segment);
191void mlx5dr_buddy_free_mem(struct mlx5dr_icm_buddy_mem *buddy,
192			   unsigned int seg, unsigned int order);
193
194#endif /* _MLX5DR_H_ */