[linux-2.6-block.git] / include / linux / mlx5 / fs.h

/*
 * Copyright (c) 2015, Mellanox Technologies. All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#ifndef _MLX5_FS_
#define _MLX5_FS_

#include <linux/mlx5/driver.h>
#include <linux/mlx5/mlx5_ifc.h>

#define MLX5_FS_DEFAULT_FLOW_TAG 0x0

enum {
	MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO	= 1 << 16,
	MLX5_FLOW_CONTEXT_ACTION_ENCRYPT	= 1 << 17,
	MLX5_FLOW_CONTEXT_ACTION_DECRYPT	= 1 << 18,
};

enum {
	MLX5_FLOW_TABLE_TUNNEL_EN_REFORMAT = BIT(0),
	MLX5_FLOW_TABLE_TUNNEL_EN_DECAP = BIT(1),
	MLX5_FLOW_TABLE_TERMINATION = BIT(2),
};

#define LEFTOVERS_RULE_NUM	 2
static inline void build_leftovers_ft_param(int *priority,
					    int *n_ent,
					    int *n_grp)
{
	*priority = 0; /* Priority of leftovers_prio-0 */
	*n_ent = LEFTOVERS_RULE_NUM;
	*n_grp = LEFTOVERS_RULE_NUM;
}

enum mlx5_flow_namespace_type {
	MLX5_FLOW_NAMESPACE_BYPASS,
	MLX5_FLOW_NAMESPACE_LAG,
	MLX5_FLOW_NAMESPACE_OFFLOADS,
	MLX5_FLOW_NAMESPACE_ETHTOOL,
	MLX5_FLOW_NAMESPACE_KERNEL,
	MLX5_FLOW_NAMESPACE_LEFTOVERS,
	MLX5_FLOW_NAMESPACE_ANCHOR,
	MLX5_FLOW_NAMESPACE_FDB,
	MLX5_FLOW_NAMESPACE_ESW_EGRESS,
	MLX5_FLOW_NAMESPACE_ESW_INGRESS,
	MLX5_FLOW_NAMESPACE_SNIFFER_RX,
	MLX5_FLOW_NAMESPACE_SNIFFER_TX,
	MLX5_FLOW_NAMESPACE_EGRESS,
	MLX5_FLOW_NAMESPACE_RDMA_RX,
};

enum {
	FDB_BYPASS_PATH,
	FDB_FAST_PATH,
	FDB_SLOW_PATH,
};

struct mlx5_flow_table;
struct mlx5_flow_group;
struct mlx5_flow_namespace;
struct mlx5_flow_handle;

enum {
	FLOW_CONTEXT_HAS_TAG = BIT(0),
};

struct mlx5_flow_context {
	u32 flags;
	u32 flow_tag;
	u32 flow_source;
};

struct mlx5_flow_spec {
	u8   match_criteria_enable;
	u32  match_criteria[MLX5_ST_SZ_DW(fte_match_param)];
	u32  match_value[MLX5_ST_SZ_DW(fte_match_param)];
	struct mlx5_flow_context flow_context;
};

enum {
	MLX5_FLOW_DEST_VPORT_VHCA_ID      = BIT(0),
	MLX5_FLOW_DEST_VPORT_REFORMAT_ID  = BIT(1),
};

struct mlx5_flow_destination {
	enum mlx5_flow_destination_type	type;
	union {
		u32			tir_num;
		u32			ft_num;
		struct mlx5_flow_table	*ft;
		u32			counter_id;
		struct {
			u16		num;
			u16		vhca_id;
			u32		reformat_id;
			u8		flags;
		} vport;
	};
};

struct mlx5_flow_namespace *
mlx5_get_fdb_sub_ns(struct mlx5_core_dev *dev, int n);
struct mlx5_flow_namespace *
mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
			enum mlx5_flow_namespace_type type);
struct mlx5_flow_namespace *
mlx5_get_flow_vport_acl_namespace(struct mlx5_core_dev *dev,
				  enum mlx5_flow_namespace_type type,
				  int vport);

struct mlx5_flow_table *
mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns,
				    int prio,
				    int num_flow_table_entries,
				    int max_num_groups,
				    u32 level,
				    u32 flags);

struct mlx5_flow_table_attr {
	int prio;
	int max_fte;
	u32 level;
	u32 flags;
};

struct mlx5_flow_table *
mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
		       struct mlx5_flow_table_attr *ft_attr);

struct mlx5_flow_table *
mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns,
			     int prio,
			     int num_flow_table_entries,
			     u32 level, u16 vport);
struct mlx5_flow_table *mlx5_create_lag_demux_flow_table(
					       struct mlx5_flow_namespace *ns,
					       int prio, u32 level);
int mlx5_destroy_flow_table(struct mlx5_flow_table *ft);

/* inbox should be set with the following values:
 * start_flow_index
 * end_flow_index
 * match_criteria_enable
 * match_criteria
 */
struct mlx5_flow_group *
mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in);
void mlx5_destroy_flow_group(struct mlx5_flow_group *fg);

struct mlx5_fs_vlan {
        u16 ethtype;
        u16 vid;
        u8  prio;
};

#define MLX5_FS_VLAN_DEPTH	2

enum {
	FLOW_ACT_NO_APPEND = BIT(0),
};

struct mlx5_flow_act {
	u32 action;
	u32 reformat_id;
	u32 modify_id;
	uintptr_t esp_id;
	u32 flags;
	struct mlx5_fs_vlan vlan[MLX5_FS_VLAN_DEPTH];
	struct ib_counters *counters;
};

#define MLX5_DECLARE_FLOW_ACT(name) \
	struct mlx5_flow_act name = { .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,\
				      .reformat_id = 0, \
				      .modify_id = 0, \
				      .flags =  0, }

/* Single destination per rule.
 * Group ID is implied by the match criteria.
 */
struct mlx5_flow_handle *
mlx5_add_flow_rules(struct mlx5_flow_table *ft,
		    const struct mlx5_flow_spec *spec,
		    struct mlx5_flow_act *flow_act,
		    struct mlx5_flow_destination *dest,
		    int num_dest);
void mlx5_del_flow_rules(struct mlx5_flow_handle *fr);

int mlx5_modify_rule_destination(struct mlx5_flow_handle *handler,
				 struct mlx5_flow_destination *new_dest,
				 struct mlx5_flow_destination *old_dest);

struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging);
void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter);
u64 mlx5_fc_query_lastuse(struct mlx5_fc *counter);
void mlx5_fc_query_cached(struct mlx5_fc *counter,
			  u64 *bytes, u64 *packets, u64 *lastuse);
int mlx5_fc_query(struct mlx5_core_dev *dev, struct mlx5_fc *counter,
		  u64 *packets, u64 *bytes);
u32 mlx5_fc_id(struct mlx5_fc *counter);

int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);

int mlx5_modify_header_alloc(struct mlx5_core_dev *dev,
			     u8 namespace, u8 num_actions,
			     void *modify_actions, u32 *modify_header_id);
void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev,
				u32 modify_header_id);

int mlx5_packet_reformat_alloc(struct mlx5_core_dev *dev,
			       int reformat_type,
			       size_t size,
			       void *reformat_data,
			       enum mlx5_flow_namespace_type namespace,
			       u32 *packet_reformat_id);
void mlx5_packet_reformat_dealloc(struct mlx5_core_dev *dev,
				  u32 packet_reformat_id);

#endif
Commit	Line	Data
26a81453 MG	1	/*
	2	* Copyright (c) 2015, Mellanox Technologies. All rights reserved.
	3	*
	4	* This software is available to you under a choice of one of two
	5	* licenses. You may choose to be licensed under the terms of the GNU
	6	* General Public License (GPL) Version 2, available from the file
	7	* COPYING in the main directory of this source tree, or the
	8	* OpenIB.org BSD license below:
	9	*
	10	* Redistribution and use in source and binary forms, with or
	11	* without modification, are permitted provided that the following
	12	* conditions are met:
	13	*
	14	* - Redistributions of source code must retain the above
	15	* copyright notice, this list of conditions and the following
	16	* disclaimer.
	17	*
	18	* - Redistributions in binary form must reproduce the above
	19	* copyright notice, this list of conditions and the following
	20	* disclaimer in the documentation and/or other materials
	21	* provided with the distribution.
	22	*
	23	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	24	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	25	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
	26	* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
	27	* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
	28	* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	29	* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	30	* SOFTWARE.
	31	*/
	32
	33	#ifndef _MLX5_FS_
	34	#define _MLX5_FS_
	35
86d722ad	36	#include <linux/mlx5/driver.h>
26a81453 MG	37	#include <linux/mlx5/mlx5_ifc.h>
26a81453 MG	38
25302363 MG	39	#define MLX5_FS_DEFAULT_FLOW_TAG 0x0
25302363 MG	40
b3638e1a MG	41	enum {
b3638e1a MG	42	MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO = 1 << 16,
05564d0a AY	43	MLX5_FLOW_CONTEXT_ACTION_ENCRYPT = 1 << 17,
05564d0a AY	44	MLX5_FLOW_CONTEXT_ACTION_DECRYPT = 1 << 18,
b3638e1a MG	45	};
b3638e1a MG	46
c9f1b073	47	enum {
60786f09	48	MLX5_FLOW_TABLE_TUNNEL_EN_REFORMAT = BIT(0),
61444b45	49	MLX5_FLOW_TABLE_TUNNEL_EN_DECAP = BIT(1),
c6d4e45d	50	MLX5_FLOW_TABLE_TERMINATION = BIT(2),
c9f1b073 HHZ	51	};
c9f1b073 HHZ	52
038d2ef8 MG	53	#define LEFTOVERS_RULE_NUM 2
	54	static inline void build_leftovers_ft_param(int *priority,
	55	int *n_ent,
	56	int *n_grp)
	57	{
	58	priority = 0; / Priority of leftovers_prio-0 */
	59	*n_ent = LEFTOVERS_RULE_NUM;
	60	*n_grp = LEFTOVERS_RULE_NUM;
	61	}
	62
25302363	63	enum mlx5_flow_namespace_type {
4cbdd30e	64	MLX5_FLOW_NAMESPACE_BYPASS,
3e75d4eb	65	MLX5_FLOW_NAMESPACE_LAG,
acbc2004	66	MLX5_FLOW_NAMESPACE_OFFLOADS,
6dc6071c	67	MLX5_FLOW_NAMESPACE_ETHTOOL,
25302363	68	MLX5_FLOW_NAMESPACE_KERNEL,
4cbdd30e	69	MLX5_FLOW_NAMESPACE_LEFTOVERS,
153fefbf	70	MLX5_FLOW_NAMESPACE_ANCHOR,
25302363	71	MLX5_FLOW_NAMESPACE_FDB,
efdc810b MHY	72	MLX5_FLOW_NAMESPACE_ESW_EGRESS,
efdc810b MHY	73	MLX5_FLOW_NAMESPACE_ESW_INGRESS,
87d22483 MG	74	MLX5_FLOW_NAMESPACE_SNIFFER_RX,
87d22483 MG	75	MLX5_FLOW_NAMESPACE_SNIFFER_TX,
5f418378	76	MLX5_FLOW_NAMESPACE_EGRESS,
d83eb50e	77	MLX5_FLOW_NAMESPACE_RDMA_RX,
25302363 MG	78	};
25302363 MG	79
b6d9ccb1	80	enum {
d9cb0675	81	FDB_BYPASS_PATH,
b6d9ccb1 MB	82	FDB_FAST_PATH,
	83	FDB_SLOW_PATH,
	84	};
	85
26a81453	86	struct mlx5_flow_table;
86d722ad	87	struct mlx5_flow_group;
86d722ad	88	struct mlx5_flow_namespace;
74491de9	89	struct mlx5_flow_handle;
26a81453	90
bb0ee7dc JL	91	enum {
	92	FLOW_CONTEXT_HAS_TAG = BIT(0),
	93	};
	94
	95	struct mlx5_flow_context {
	96	u32 flags;
	97	u32 flow_tag;
8d212ff0	98	u32 flow_source;
bb0ee7dc JL	99	};
bb0ee7dc JL	100
c5bb1730 MG	101	struct mlx5_flow_spec {
	102	u8 match_criteria_enable;
	103	u32 match_criteria[MLX5_ST_SZ_DW(fte_match_param)];
	104	u32 match_value[MLX5_ST_SZ_DW(fte_match_param)];
bb0ee7dc	105	struct mlx5_flow_context flow_context;
c5bb1730 MG	106	};
c5bb1730 MG	107
aa39c2c0 EB	108	enum {
aa39c2c0 EB	109	MLX5_FLOW_DEST_VPORT_VHCA_ID = BIT(0),
a2c6162b	110	MLX5_FLOW_DEST_VPORT_REFORMAT_ID = BIT(1),
aa39c2c0 EB	111	};
aa39c2c0 EB	112
26a81453 MG	113	struct mlx5_flow_destination {
	114	enum mlx5_flow_destination_type type;
	115	union {
	116	u32 tir_num;
664000b6	117	u32 ft_num;
26a81453	118	struct mlx5_flow_table *ft;
171c7625	119	u32 counter_id;
b17f7fc1 SK	120	struct {
	121	u16 num;
	122	u16 vhca_id;
a2c6162b	123	u32 reformat_id;
aa39c2c0	124	u8 flags;
b17f7fc1	125	} vport;
26a81453 MG	126	};
26a81453 MG	127	};
86d722ad	128
328edb49 PB	129	struct mlx5_flow_namespace *
328edb49 PB	130	mlx5_get_fdb_sub_ns(struct mlx5_core_dev *dev, int n);
86d722ad MG	131	struct mlx5_flow_namespace *
	132	mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
	133	enum mlx5_flow_namespace_type type);
9b93ab98 GP	134	struct mlx5_flow_namespace *
	135	mlx5_get_flow_vport_acl_namespace(struct mlx5_core_dev *dev,
	136	enum mlx5_flow_namespace_type type,
	137	int vport);
86d722ad	138
f0d22d18 MG	139	struct mlx5_flow_table *
	140	mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns,
	141	int prio,
	142	int num_flow_table_entries,
d63cd286	143	int max_num_groups,
c9f1b073 HHZ	144	u32 level,
c9f1b073 HHZ	145	u32 flags);
f0d22d18	146
b3ba5149 ES	147	struct mlx5_flow_table_attr {
	148	int prio;
	149	int max_fte;
	150	u32 level;
	151	u32 flags;
b3ba5149 ES	152	};
b3ba5149 ES	153
86d722ad MG	154	struct mlx5_flow_table *
86d722ad MG	155	mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
b3ba5149 ES	156	struct mlx5_flow_table_attr *ft_attr);
b3ba5149 ES	157
efdc810b MHY	158	struct mlx5_flow_table *
	159	mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns,
	160	int prio,
	161	int num_flow_table_entries,
	162	u32 level, u16 vport);
aaff1bea AH	163	struct mlx5_flow_table *mlx5_create_lag_demux_flow_table(
	164	struct mlx5_flow_namespace *ns,
	165	int prio, u32 level);
86d722ad MG	166	int mlx5_destroy_flow_table(struct mlx5_flow_table *ft);
	167
	168	/* inbox should be set with the following values:
	169	* start_flow_index
	170	* end_flow_index
	171	* match_criteria_enable
	172	* match_criteria
	173	*/
	174	struct mlx5_flow_group *
	175	mlx5_create_flow_group(struct mlx5_flow_table ft, u32 in);
	176	void mlx5_destroy_flow_group(struct mlx5_flow_group *fg);
	177
0c06897a OG	178	struct mlx5_fs_vlan {
	179	u16 ethtype;
	180	u16 vid;
	181	u8 prio;
	182	};
	183
8da6fe2a JL	184	#define MLX5_FS_VLAN_DEPTH 2
8da6fe2a JL	185
d5634fee	186	enum {
bb0ee7dc	187	FLOW_ACT_NO_APPEND = BIT(0),
d5634fee PB	188	};
d5634fee PB	189
66958ed9 HHZ	190	struct mlx5_flow_act {
66958ed9 HHZ	191	u32 action;
60786f09	192	u32 reformat_id;
2a69cb9f	193	u32 modify_id;
05564d0a	194	uintptr_t esp_id;
d5634fee	195	u32 flags;
8da6fe2a	196	struct mlx5_fs_vlan vlan[MLX5_FS_VLAN_DEPTH];
3b3233fb	197	struct ib_counters *counters;
66958ed9 HHZ	198	};
66958ed9 HHZ	199
e753b2b5	200	#define MLX5_DECLARE_FLOW_ACT(name) \
d5634fee	201	struct mlx5_flow_act name = { .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,\
d5634fee PB	202	.reformat_id = 0, \
	203	.modify_id = 0, \
	204	.flags = 0, }
e753b2b5	205
86d722ad MG	206	/* Single destination per rule.
	207	* Group ID is implied by the match criteria.
	208	*/
74491de9 MB	209	struct mlx5_flow_handle *
74491de9 MB	210	mlx5_add_flow_rules(struct mlx5_flow_table *ft,
5233794b	211	const struct mlx5_flow_spec *spec,
66958ed9	212	struct mlx5_flow_act *flow_act,
74491de9	213	struct mlx5_flow_destination *dest,
cf916ffb	214	int num_dest);
74491de9 MB	215	void mlx5_del_flow_rules(struct mlx5_flow_handle *fr);
	216
	217	int mlx5_modify_rule_destination(struct mlx5_flow_handle *handler,
	218	struct mlx5_flow_destination *new_dest,
	219	struct mlx5_flow_destination *old_dest);
	220
43a335e0 AV	221	struct mlx5_fc mlx5_fc_create(struct mlx5_core_dev dev, bool aging);
43a335e0 AV	222	void mlx5_fc_destroy(struct mlx5_core_dev dev, struct mlx5_fc counter);
90bb7692	223	u64 mlx5_fc_query_lastuse(struct mlx5_fc *counter);
43a335e0 AV	224	void mlx5_fc_query_cached(struct mlx5_fc *counter,
43a335e0 AV	225	u64 bytes, u64 packets, u64 *lastuse);
5f9bf63a RS	226	int mlx5_fc_query(struct mlx5_core_dev dev, struct mlx5_fc counter,
5f9bf63a RS	227	u64 packets, u64 bytes);
171c7625	228	u32 mlx5_fc_id(struct mlx5_fc *counter);
5f9bf63a	229
50854114 YH	230	int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
	231	int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
	232
90c1d1b8 MB	233	int mlx5_modify_header_alloc(struct mlx5_core_dev *dev,
	234	u8 namespace, u8 num_actions,
	235	void modify_actions, u32 modify_header_id);
	236	void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev,
	237	u32 modify_header_id);
	238
50acec06 MB	239	int mlx5_packet_reformat_alloc(struct mlx5_core_dev *dev,
	240	int reformat_type,
	241	size_t size,
	242	void *reformat_data,
	243	enum mlx5_flow_namespace_type namespace,
	244	u32 *packet_reformat_id);
	245	void mlx5_packet_reformat_dealloc(struct mlx5_core_dev *dev,
	246	u32 packet_reformat_id);
	247
26a81453	248	#endif