fs.h

  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
 36#include <linux/mlx5/driver.h>
 37#include <linux/mlx5/mlx5_ifc.h>
 38
 39#define MLX5_FS_DEFAULT_FLOW_TAG 0x0
 40
 41#define MLX5_SET_CFG(p, f, v) MLX5_SET(create_flow_group_in, p, f, v)
 42
 43#define MLX5_RDMA_TRANSPORT_BYPASS_PRIO 16
 44#define MLX5_FS_MAX_POOL_SIZE BIT(30)
 45
 46enum mlx5_flow_destination_type {
 47	MLX5_FLOW_DESTINATION_TYPE_NONE,
 48	MLX5_FLOW_DESTINATION_TYPE_VPORT,
 49	MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE,
 50	MLX5_FLOW_DESTINATION_TYPE_TIR,
 51	MLX5_FLOW_DESTINATION_TYPE_FLOW_SAMPLER,
 52	MLX5_FLOW_DESTINATION_TYPE_UPLINK,
 53	MLX5_FLOW_DESTINATION_TYPE_PORT,
 54	MLX5_FLOW_DESTINATION_TYPE_COUNTER,
 55	MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE_NUM,
 56	MLX5_FLOW_DESTINATION_TYPE_RANGE,
 57	MLX5_FLOW_DESTINATION_TYPE_TABLE_TYPE,
 58};
 59
 60enum {
 61	MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO	= 1 << 16,
 62	MLX5_FLOW_CONTEXT_ACTION_ENCRYPT	= 1 << 17,
 63	MLX5_FLOW_CONTEXT_ACTION_DECRYPT	= 1 << 18,
 64	MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_NS	= 1 << 19,
 65};
 66
 67enum {
 68	MLX5_FLOW_TABLE_TUNNEL_EN_REFORMAT = BIT(0),
 69	MLX5_FLOW_TABLE_TUNNEL_EN_DECAP = BIT(1),
 70	MLX5_FLOW_TABLE_TERMINATION = BIT(2),
 71	MLX5_FLOW_TABLE_UNMANAGED = BIT(3),
 72	MLX5_FLOW_TABLE_OTHER_VPORT = BIT(4),
 73	MLX5_FLOW_TABLE_UPLINK_VPORT = BIT(5),
 74	MLX5_FLOW_TABLE_OTHER_ESWITCH = BIT(6),
 75};
 76
 77#define LEFTOVERS_RULE_NUM	 2
 78static inline void build_leftovers_ft_param(int *priority,
 79					    int *n_ent,
 80					    int *n_grp)
 81{
 82	*priority = 0; /* Priority of leftovers_prio-0 */
 83	*n_ent = LEFTOVERS_RULE_NUM;
 84	*n_grp = LEFTOVERS_RULE_NUM;
 85}
 86
 87enum mlx5_flow_namespace_type {
 88	MLX5_FLOW_NAMESPACE_BYPASS,
 89	MLX5_FLOW_NAMESPACE_KERNEL_RX_MACSEC,
 90	MLX5_FLOW_NAMESPACE_LAG,
 91	MLX5_FLOW_NAMESPACE_OFFLOADS,
 92	MLX5_FLOW_NAMESPACE_ETHTOOL,
 93	MLX5_FLOW_NAMESPACE_KERNEL,
 94	MLX5_FLOW_NAMESPACE_LEFTOVERS,
 95	MLX5_FLOW_NAMESPACE_ANCHOR,
 96	MLX5_FLOW_NAMESPACE_FDB_BYPASS,
 97	MLX5_FLOW_NAMESPACE_FDB,
 98	MLX5_FLOW_NAMESPACE_ESW_EGRESS,
 99	MLX5_FLOW_NAMESPACE_ESW_INGRESS,
100	MLX5_FLOW_NAMESPACE_SNIFFER_RX,
101	MLX5_FLOW_NAMESPACE_SNIFFER_TX,
102	MLX5_FLOW_NAMESPACE_EGRESS,
103	MLX5_FLOW_NAMESPACE_EGRESS_IPSEC,
104	MLX5_FLOW_NAMESPACE_EGRESS_MACSEC,
105	MLX5_FLOW_NAMESPACE_RDMA_RX,
106	MLX5_FLOW_NAMESPACE_RDMA_RX_KERNEL,
107	MLX5_FLOW_NAMESPACE_RDMA_TX,
108	MLX5_FLOW_NAMESPACE_PORT_SEL,
109	MLX5_FLOW_NAMESPACE_RDMA_RX_COUNTERS,
110	MLX5_FLOW_NAMESPACE_RDMA_TX_COUNTERS,
111	MLX5_FLOW_NAMESPACE_RDMA_RX_IPSEC,
112	MLX5_FLOW_NAMESPACE_RDMA_TX_IPSEC,
113	MLX5_FLOW_NAMESPACE_RDMA_RX_MACSEC,
114	MLX5_FLOW_NAMESPACE_RDMA_TX_MACSEC,
115	MLX5_FLOW_NAMESPACE_RDMA_TRANSPORT_RX,
116	MLX5_FLOW_NAMESPACE_RDMA_TRANSPORT_TX,
117};
118
119enum {
120	FDB_DROP_ROOT,
121	FDB_BYPASS_PATH,
122	FDB_CRYPTO_INGRESS,
123	FDB_TC_OFFLOAD,
124	FDB_FT_OFFLOAD,
125	FDB_TC_MISS,
126	FDB_BR_OFFLOAD,
127	FDB_SLOW_PATH,
128	FDB_CRYPTO_EGRESS,
129	FDB_PER_VPORT,
130};
131
132enum fs_flow_table_type {
133	FS_FT_NIC_RX          = 0x0,
134	FS_FT_NIC_TX          = 0x1,
135	FS_FT_ESW_EGRESS_ACL  = 0x2,
136	FS_FT_ESW_INGRESS_ACL = 0x3,
137	FS_FT_FDB             = 0X4,
138	FS_FT_SNIFFER_RX	= 0X5,
139	FS_FT_SNIFFER_TX	= 0X6,
140	FS_FT_RDMA_RX		= 0X7,
141	FS_FT_RDMA_TX		= 0X8,
142	FS_FT_PORT_SEL		= 0X9,
143	FS_FT_FDB_RX		= 0xa,
144	FS_FT_FDB_TX		= 0xb,
145	FS_FT_RDMA_TRANSPORT_RX	= 0xd,
146	FS_FT_RDMA_TRANSPORT_TX	= 0xe,
147	FS_FT_MAX_TYPE = FS_FT_RDMA_TRANSPORT_TX,
148};
149
150struct mlx5_pkt_reformat;
151struct mlx5_modify_hdr;
152struct mlx5_flow_definer;
153struct mlx5_flow_table;
154struct mlx5_flow_group;
155struct mlx5_flow_namespace;
156struct mlx5_flow_handle;
157
158enum {
159	FLOW_CONTEXT_HAS_TAG = BIT(0),
160	FLOW_CONTEXT_UPLINK_HAIRPIN_EN = BIT(1),
161};
162
163struct mlx5_flow_context {
164	u32 flags;
165	u32 flow_tag;
166	u32 flow_source;
167};
168
169struct mlx5_flow_spec {
170	u8   match_criteria_enable;
171	u32  match_criteria[MLX5_ST_SZ_DW(fte_match_param)];
172	u32  match_value[MLX5_ST_SZ_DW(fte_match_param)];
173	struct mlx5_flow_context flow_context;
174};
175
176enum {
177	MLX5_FLOW_DEST_VPORT_VHCA_ID      = BIT(0),
178	MLX5_FLOW_DEST_VPORT_REFORMAT_ID  = BIT(1),
179};
180
181enum mlx5_flow_dest_range_field {
182	MLX5_FLOW_DEST_RANGE_FIELD_PKT_LEN = 0,
183};
184
185struct mlx5_flow_destination {
186	enum mlx5_flow_destination_type	type;
187	union {
188		u32			tir_num;
189		u32			ft_num;
190		struct mlx5_flow_table	*ft;
191		struct mlx5_fc          *counter;
192		struct {
193			u16		num;
194			u16		vhca_id;
195			struct mlx5_pkt_reformat *pkt_reformat;
196			u8		flags;
197		} vport;
198		struct {
199			struct mlx5_flow_table         *hit_ft;
200			struct mlx5_flow_table         *miss_ft;
201			enum mlx5_flow_dest_range_field field;
202			u32                             min;
203			u32                             max;
204		} range;
205		u32			sampler_id;
206	};
207};
208
209struct mod_hdr_tbl {
210	struct mutex lock; /* protects hlist */
211	DECLARE_HASHTABLE(hlist, 8);
212};
213
214struct mlx5_flow_namespace *
215mlx5_get_fdb_sub_ns(struct mlx5_core_dev *dev, int n);
216struct mlx5_flow_namespace *
217mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
218			enum mlx5_flow_namespace_type type);
219struct mlx5_flow_namespace *
220mlx5_get_flow_vport_namespace(struct mlx5_core_dev *dev,
221			      enum mlx5_flow_namespace_type type,
222			      int vport_idx);
223
224struct mlx5_flow_table_attr {
225	int prio;
226	int max_fte;
227	u32 level;
228	u32 flags;
229	u16 uid;
230	u16 vport;
231	u16 esw_owner_vhca_id;
232	struct mlx5_flow_table *next_ft;
233
234	struct {
235		int max_num_groups;
236		int num_reserved_entries;
237	} autogroup;
238};
239
240struct mlx5_flow_table *
241mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
242		       struct mlx5_flow_table_attr *ft_attr);
243
244struct mlx5_flow_table *
245mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns,
246				    struct mlx5_flow_table_attr *ft_attr);
247
248struct mlx5_flow_table *
249mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns,
250			     struct mlx5_flow_table_attr *ft_attr, u16 vport);
251struct mlx5_flow_table *mlx5_create_lag_demux_flow_table(
252					       struct mlx5_flow_namespace *ns,
253					       int prio, u32 level);
254int mlx5_destroy_flow_table(struct mlx5_flow_table *ft);
255
256/* inbox should be set with the following values:
257 * start_flow_index
258 * end_flow_index
259 * match_criteria_enable
260 * match_criteria
261 */
262struct mlx5_flow_group *
263mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in);
264void mlx5_destroy_flow_group(struct mlx5_flow_group *fg);
265
266struct mlx5_exe_aso {
267	u32 object_id;
268	int base_id;
269	u8 type;
270	u8 return_reg_id;
271	union {
272		u32 ctrl_data;
273		struct {
274			u8 meter_idx;
275			u8 init_color;
276		} flow_meter;
277	};
278};
279
280struct mlx5_fs_vlan {
281        u16 ethtype;
282        u16 vid;
283        u8  prio;
284};
285
286#define MLX5_FS_VLAN_DEPTH	2
287
288enum {
289	FLOW_ACT_NO_APPEND = BIT(0),
290	FLOW_ACT_IGNORE_FLOW_LEVEL = BIT(1),
291};
292
293struct mlx5_flow_act {
294	u32 action;
295	struct mlx5_modify_hdr  *modify_hdr;
296	struct mlx5_pkt_reformat *pkt_reformat;
297	struct mlx5_flow_act_crypto_params {
298		u8 type;
299		u32 obj_id;
300	} crypto;
301	u32 flags;
302	struct mlx5_fs_vlan vlan[MLX5_FS_VLAN_DEPTH];
303	struct ib_counters *counters;
304	struct mlx5_flow_group *fg;
305	struct mlx5_exe_aso exe_aso;
306};
307
308#define MLX5_DECLARE_FLOW_ACT(name) \
309	struct mlx5_flow_act name = { .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,\
310				      .flags =  0, }
311
312/* Single destination per rule.
313 * Group ID is implied by the match criteria.
314 */
315struct mlx5_flow_handle *
316mlx5_add_flow_rules(struct mlx5_flow_table *ft,
317		    const struct mlx5_flow_spec *spec,
318		    struct mlx5_flow_act *flow_act,
319		    struct mlx5_flow_destination *dest,
320		    int num_dest);
321void mlx5_del_flow_rules(struct mlx5_flow_handle *fr);
322
323int mlx5_modify_rule_destination(struct mlx5_flow_handle *handler,
324				 struct mlx5_flow_destination *new_dest,
325				 struct mlx5_flow_destination *old_dest);
326
327struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging);
328
329void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter);
330struct mlx5_fc *mlx5_fc_local_create(u32 counter_id, u32 offset, u32 bulk_size);
331void mlx5_fc_local_destroy(struct mlx5_fc *counter);
332void mlx5_fc_local_get(struct mlx5_fc *counter);
333void mlx5_fc_local_put(struct mlx5_fc *counter);
334u64 mlx5_fc_query_lastuse(struct mlx5_fc *counter);
335void mlx5_fc_query_cached(struct mlx5_fc *counter,
336			  u64 *bytes, u64 *packets, u64 *lastuse);
337void mlx5_fc_query_cached_raw(struct mlx5_fc *counter,
338			      u64 *bytes, u64 *packets, u64 *lastuse);
339int mlx5_fc_query(struct mlx5_core_dev *dev, struct mlx5_fc *counter,
340		  u64 *packets, u64 *bytes);
341u32 mlx5_fc_id(struct mlx5_fc *counter);
342
343int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
344int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
345
346struct mlx5_modify_hdr *mlx5_modify_header_alloc(struct mlx5_core_dev *dev,
347						 u8 ns_type, u8 num_actions,
348						 void *modify_actions);
349void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev,
350				struct mlx5_modify_hdr *modify_hdr);
351struct mlx5_flow_definer *
352mlx5_create_match_definer(struct mlx5_core_dev *dev,
353			  enum mlx5_flow_namespace_type ns_type, u16 format_id,
354			  u32 *match_mask);
355void mlx5_destroy_match_definer(struct mlx5_core_dev *dev,
356				struct mlx5_flow_definer *definer);
357int mlx5_get_match_definer_id(struct mlx5_flow_definer *definer);
358
359struct mlx5_pkt_reformat_params {
360	int type;
361	u8 param_0;
362	u8 param_1;
363	size_t size;
364	void *data;
365};
366
367struct mlx5_pkt_reformat *mlx5_packet_reformat_alloc(struct mlx5_core_dev *dev,
368						     struct mlx5_pkt_reformat_params *params,
369						     enum mlx5_flow_namespace_type ns_type);
370void mlx5_packet_reformat_dealloc(struct mlx5_core_dev *dev,
371				  struct mlx5_pkt_reformat *reformat);
372
373u32 mlx5_flow_table_id(struct mlx5_flow_table *ft);
374
375struct mlx5_flow_root_namespace *
376mlx5_get_root_namespace(struct mlx5_core_dev *dev, enum mlx5_flow_namespace_type ns_type);
377
378int mlx5_fs_set_root_dev(struct mlx5_core_dev *dev,
379			 struct mlx5_core_dev *new_dev,
380			 enum fs_flow_table_type table_type);
381#endif