nfp: flower: allow offloading of matches on 'internal' ports
[linux-block.git] / drivers / net / ethernet / netronome / nfp / flower / main.h
CommitLineData
96de2506
JK
1/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
2/* Copyright (C) 2017-2018 Netronome Systems, Inc. */
8a276873
PJV
3
4#ifndef __NFP_FLOWER_H__
5#define __NFP_FLOWER_H__ 1
6
bedeca15
JH
7#include "cmsg.h"
8
43f84b72
PJV
9#include <linux/circ_buf.h>
10#include <linux/hashtable.h>
c01d0efa 11#include <linux/rhashtable.h>
43f84b72 12#include <linux/time64.h>
8a276873 13#include <linux/types.h>
de4784ca 14#include <net/pkt_cls.h>
ffa61202 15#include <net/tcp.h>
b985f870 16#include <linux/workqueue.h>
bb9a8d03 17#include <linux/idr.h>
8a276873 18
7e24a593 19struct nfp_fl_pre_lag;
8a276873
PJV
20struct net_device;
21struct nfp_app;
22
467322e2
PJV
23#define NFP_FL_STAT_ID_MU_NUM GENMASK(31, 22)
24#define NFP_FL_STAT_ID_STAT GENMASK(21, 0)
25
12ecf615
PJV
26#define NFP_FL_STATS_ELEM_RS FIELD_SIZEOF(struct nfp_fl_stats_id, \
27 init_unalloc)
43f84b72
PJV
28#define NFP_FLOWER_MASK_ENTRY_RS 256
29#define NFP_FLOWER_MASK_ELEMENT_RS 1
30#define NFP_FLOWER_MASK_HASH_BITS 10
31
6c3ab204 32#define NFP_FL_META_FLAG_MANAGE_MASK BIT(7)
43f84b72
PJV
33
34#define NFP_FL_MASK_REUSE_TIME_NS 40000
35#define NFP_FL_MASK_ID_LOCATION 1
36
bedeca15
JH
37/* Extra features bitmap. */
38#define NFP_FL_FEATS_GENEVE BIT(0)
29a5dcae 39#define NFP_FL_NBI_MTU_SETTING BIT(1)
9e7c32fe 40#define NFP_FL_FEATS_GENEVE_OPT BIT(2)
db191db8 41#define NFP_FL_FEATS_VLAN_PCP BIT(3)
2f2622f5
JH
42#define NFP_FL_FEATS_FLOW_MOD BIT(5)
43#define NFP_FL_FEATS_FLOW_MERGE BIT(30)
898bc7d6 44#define NFP_FL_FEATS_LAG BIT(31)
611aec10 45
43f84b72
PJV
46struct nfp_fl_mask_id {
47 struct circ_buf mask_id_free_list;
51bef926 48 ktime_t *last_used;
43f84b72
PJV
49 u8 init_unallocated;
50};
51
abfcdc1d
PJV
52struct nfp_fl_stats_id {
53 struct circ_buf free_list;
54 u32 init_unalloc;
55 u8 repeated_em_count;
56};
57
f3b97577
JH
58/**
59 * struct nfp_fl_tunnel_offloads - priv data for tunnel offloads
20cce886 60 * @offloaded_macs: Hashtable of the offloaded MAC addresses
f3b97577
JH
61 * @ipv4_off_list: List of IPv4 addresses to offload
62 * @neigh_off_list: List of neighbour offloads
f3b97577
JH
63 * @ipv4_off_lock: Lock for the IPv4 address list
64 * @neigh_off_lock: Lock for the neighbour address list
65 * @mac_off_ids: IDA to manage id assignment for offloaded MACs
f3b97577
JH
66 * @neigh_nb: Notifier to monitor neighbour state
67 */
68struct nfp_fl_tunnel_offloads {
20cce886 69 struct rhashtable offloaded_macs;
f3b97577
JH
70 struct list_head ipv4_off_list;
71 struct list_head neigh_off_list;
f3b97577
JH
72 struct mutex ipv4_off_lock;
73 spinlock_t neigh_off_lock;
74 struct ida mac_off_ids;
f3b97577
JH
75 struct notifier_block neigh_nb;
76};
77
29a5dcae
JH
78/**
79 * struct nfp_mtu_conf - manage MTU setting
80 * @portnum: NFP port number of repr with requested MTU change
81 * @requested_val: MTU value requested for repr
82 * @ack: Received ack that MTU has been correctly set
83 * @wait_q: Wait queue for MTU acknowledgements
84 * @lock: Lock for setting/reading MTU variables
85 */
86struct nfp_mtu_conf {
87 u32 portnum;
88 unsigned int requested_val;
89 bool ack;
90 wait_queue_head_t wait_q;
91 spinlock_t lock;
92};
93
bb9a8d03
JH
94/**
95 * struct nfp_fl_lag - Flower APP priv data for link aggregation
bb9a8d03
JH
96 * @work: Work queue for writing configs to the HW
97 * @lock: Lock to protect lag_group_list
98 * @group_list: List of all master/slave groups offloaded
99 * @ida_handle: IDA to handle group ids
100 * @pkt_num: Incremented for each config packet sent
101 * @batch_ver: Incremented for each batch of config packets
102 * @global_inst: Instance allocator for groups
103 * @rst_cfg: Marker to reset HW LAG config
2e1cc522
JH
104 * @retrans_skbs: Cmsgs that could not be processed by HW and require
105 * retransmission
bb9a8d03
JH
106 */
107struct nfp_fl_lag {
bb9a8d03
JH
108 struct delayed_work work;
109 struct mutex lock;
110 struct list_head group_list;
111 struct ida ida_handle;
112 unsigned int pkt_num;
113 unsigned int batch_ver;
114 u8 global_inst;
115 bool rst_cfg;
2e1cc522 116 struct sk_buff_head retrans_skbs;
bb9a8d03
JH
117};
118
4d12ba42
JH
119/**
120 * struct nfp_fl_internal_ports - Flower APP priv data for additional ports
121 * @port_ids: Assignment of ids to any additional ports
122 * @lock: Lock for extra ports list
123 */
124struct nfp_fl_internal_ports {
125 struct idr port_ids;
126 spinlock_t lock;
127};
128
43f84b72
PJV
129/**
130 * struct nfp_flower_priv - Flower APP per-vNIC priv data
c496291c 131 * @app: Back pointer to app
43f84b72
PJV
132 * @nn: Pointer to vNIC
133 * @mask_id_seed: Seed used for mask hash table
134 * @flower_version: HW version of flower
73997348 135 * @flower_ext_feats: Bitmap of extra features the HW supports
abfcdc1d 136 * @stats_ids: List of free stats ids
43f84b72
PJV
137 * @mask_ids: List of free mask ids
138 * @mask_table: Hash table used to store masks
12ecf615 139 * @stats_ring_size: Maximum number of allowed stats ids
43f84b72 140 * @flow_table: Hash table used to store flower rules
7fade107
PJV
141 * @stats: Stored stats updates for flower rules
142 * @stats_lock: Lock for flower rule stats updates
b985f870 143 * @cmsg_work: Workqueue for control messages processing
cf2cbadc
PJV
144 * @cmsg_skbs_high: List of higher priority skbs for control message
145 * processing
146 * @cmsg_skbs_low: List of lower priority skbs for control message
147 * processing
f3b97577 148 * @tun: Tunnel offload data
d2c2928d
DM
149 * @reify_replies: atomically stores the number of replies received
150 * from firmware for repr reify
151 * @reify_wait_queue: wait queue for repr reify response counting
29a5dcae 152 * @mtu_conf: Configuration of repr MTU value
bb9a8d03 153 * @nfp_lag: Link aggregation data block
3166dd07 154 * @indr_block_cb_priv: List of priv data passed to indirect block cbs
05d2bee6 155 * @non_repr_priv: List of offloaded non-repr ports and their priv data
467322e2
PJV
156 * @active_mem_unit: Current active memory unit for flower rules
157 * @total_mem_units: Total number of available memory units for flower rules
4d12ba42 158 * @internal_ports: Internal port ids used in offloaded rules
43f84b72
PJV
159 */
160struct nfp_flower_priv {
c496291c 161 struct nfp_app *app;
43f84b72
PJV
162 struct nfp_net *nn;
163 u32 mask_id_seed;
164 u64 flower_version;
73997348 165 u64 flower_ext_feats;
abfcdc1d 166 struct nfp_fl_stats_id stats_ids;
43f84b72
PJV
167 struct nfp_fl_mask_id mask_ids;
168 DECLARE_HASHTABLE(mask_table, NFP_FLOWER_MASK_HASH_BITS);
12ecf615 169 u32 stats_ring_size;
c01d0efa 170 struct rhashtable flow_table;
7fade107
PJV
171 struct nfp_fl_stats *stats;
172 spinlock_t stats_lock; /* lock stats */
b985f870 173 struct work_struct cmsg_work;
cf2cbadc
PJV
174 struct sk_buff_head cmsg_skbs_high;
175 struct sk_buff_head cmsg_skbs_low;
f3b97577 176 struct nfp_fl_tunnel_offloads tun;
d2c2928d
DM
177 atomic_t reify_replies;
178 wait_queue_head_t reify_wait_queue;
29a5dcae 179 struct nfp_mtu_conf mtu_conf;
bb9a8d03 180 struct nfp_fl_lag nfp_lag;
3166dd07 181 struct list_head indr_block_cb_priv;
05d2bee6 182 struct list_head non_repr_priv;
467322e2
PJV
183 unsigned int active_mem_unit;
184 unsigned int total_mem_units;
4d12ba42 185 struct nfp_fl_internal_ports internal_ports;
43f84b72
PJV
186};
187
b9452452
JH
188/**
189 * struct nfp_flower_repr_priv - Flower APP per-repr priv data
20cce886 190 * @nfp_repr: Back pointer to nfp_repr
b9452452 191 * @lag_port_flags: Extended port flags to record lag state of repr
13cf7103
JH
192 * @mac_offloaded: Flag indicating a MAC address is offloaded for repr
193 * @offloaded_mac_addr: MAC address that has been offloaded for repr
20cce886 194 * @mac_list: List entry of reprs that share the same offloaded MAC
b9452452
JH
195 */
196struct nfp_flower_repr_priv {
20cce886 197 struct nfp_repr *nfp_repr;
b9452452 198 unsigned long lag_port_flags;
13cf7103
JH
199 bool mac_offloaded;
200 u8 offloaded_mac_addr[ETH_ALEN];
20cce886 201 struct list_head mac_list;
b9452452
JH
202};
203
05d2bee6
JH
204/**
205 * struct nfp_flower_non_repr_priv - Priv data for non-repr offloaded ports
206 * @list: List entry of offloaded reprs
207 * @netdev: Pointer to non-repr net_device
208 * @ref_count: Number of references held for this priv data
13cf7103
JH
209 * @mac_offloaded: Flag indicating a MAC address is offloaded for device
210 * @offloaded_mac_addr: MAC address that has been offloaded for dev
05d2bee6
JH
211 */
212struct nfp_flower_non_repr_priv {
213 struct list_head list;
214 struct net_device *netdev;
215 int ref_count;
13cf7103
JH
216 bool mac_offloaded;
217 u8 offloaded_mac_addr[ETH_ALEN];
05d2bee6
JH
218};
219
af9d842c
PJV
220struct nfp_fl_key_ls {
221 u32 key_layer_two;
222 u8 key_layer;
223 int key_size;
224};
225
226struct nfp_fl_rule_metadata {
227 u8 key_len;
228 u8 mask_len;
229 u8 act_len;
230 u8 flags;
231 __be32 host_ctx_id;
232 __be64 host_cookie __packed;
233 __be64 flow_version __packed;
234 __be32 shortcut;
235};
236
abfcdc1d
PJV
237struct nfp_fl_stats {
238 u64 pkts;
239 u64 bytes;
240 u64 used;
241};
242
af9d842c
PJV
243struct nfp_fl_payload {
244 struct nfp_fl_rule_metadata meta;
43f84b72 245 unsigned long tc_flower_cookie;
c01d0efa 246 struct rhash_head fl_node;
43f84b72 247 struct rcu_head rcu;
2d9ad71a 248 __be32 nfp_tun_ipv4_addr;
54a4a034 249 struct net_device *ingress_dev;
af9d842c
PJV
250 char *unmasked_data;
251 char *mask_data;
252 char *action_data;
253};
254
c01d0efa
PJV
255extern const struct rhashtable_params nfp_flower_table_params;
256
abfcdc1d
PJV
257struct nfp_fl_stats_frame {
258 __be32 stats_con_id;
259 __be32 pkt_count;
260 __be64 byte_count;
261 __be64 stats_cookie;
262};
263
4d12ba42
JH
264static inline bool
265nfp_flower_internal_port_can_offload(struct nfp_app *app,
266 struct net_device *netdev)
267{
268 struct nfp_flower_priv *app_priv = app->priv;
269
270 if (!(app_priv->flower_ext_feats & NFP_FL_FEATS_FLOW_MERGE))
271 return false;
272 if (!netdev->rtnl_link_ops)
273 return false;
274 if (!strcmp(netdev->rtnl_link_ops->kind, "openvswitch"))
275 return true;
276
277 return false;
278}
279
467322e2
PJV
280int nfp_flower_metadata_init(struct nfp_app *app, u64 host_ctx_count,
281 unsigned int host_ctx_split);
43f84b72
PJV
282void nfp_flower_metadata_cleanup(struct nfp_app *app);
283
8a276873 284int nfp_flower_setup_tc(struct nfp_app *app, struct net_device *netdev,
de4784ca 285 enum tc_setup_type type, void *type_data);
7885b4fc
JH
286int nfp_flower_compile_flow_match(struct nfp_app *app,
287 struct tc_cls_flower_offload *flow,
5571e8c9
PJV
288 struct nfp_fl_key_ls *key_ls,
289 struct net_device *netdev,
bedeca15
JH
290 struct nfp_fl_payload *nfp_flow,
291 enum nfp_flower_tun_type tun_type);
7e24a593
JH
292int nfp_flower_compile_action(struct nfp_app *app,
293 struct tc_cls_flower_offload *flow,
1a1e586f
PJV
294 struct net_device *netdev,
295 struct nfp_fl_payload *nfp_flow);
43f84b72
PJV
296int nfp_compile_flow_metadata(struct nfp_app *app,
297 struct tc_cls_flower_offload *flow,
54a4a034
JH
298 struct nfp_fl_payload *nfp_flow,
299 struct net_device *netdev);
43f84b72
PJV
300int nfp_modify_flow_metadata(struct nfp_app *app,
301 struct nfp_fl_payload *nfp_flow);
302
303struct nfp_fl_payload *
54a4a034 304nfp_flower_search_fl_table(struct nfp_app *app, unsigned long tc_flower_cookie,
d4b69bad 305 struct net_device *netdev);
43f84b72
PJV
306struct nfp_fl_payload *
307nfp_flower_remove_fl_table(struct nfp_app *app, unsigned long tc_flower_cookie);
5571e8c9 308
abfcdc1d
PJV
309void nfp_flower_rx_flow_stats(struct nfp_app *app, struct sk_buff *skb);
310
fd0dd1ab
JH
311int nfp_tunnel_config_start(struct nfp_app *app);
312void nfp_tunnel_config_stop(struct nfp_app *app);
0c665e2b
JK
313int nfp_tunnel_mac_event_handler(struct nfp_app *app,
314 struct net_device *netdev,
315 unsigned long event, void *ptr);
2d9ad71a
JH
316void nfp_tunnel_del_ipv4_off(struct nfp_app *app, __be32 ipv4);
317void nfp_tunnel_add_ipv4_off(struct nfp_app *app, __be32 ipv4);
8e6a9046 318void nfp_tunnel_request_route(struct nfp_app *app, struct sk_buff *skb);
856f5b13 319void nfp_tunnel_keep_alive(struct nfp_app *app, struct sk_buff *skb);
bb9a8d03
JH
320void nfp_flower_lag_init(struct nfp_fl_lag *lag);
321void nfp_flower_lag_cleanup(struct nfp_fl_lag *lag);
322int nfp_flower_lag_reset(struct nfp_fl_lag *lag);
0c665e2b
JK
323int nfp_flower_lag_netdev_event(struct nfp_flower_priv *priv,
324 struct net_device *netdev,
325 unsigned long event, void *ptr);
2e1cc522 326bool nfp_flower_lag_unprocessed_msg(struct nfp_app *app, struct sk_buff *skb);
7e24a593
JH
327int nfp_flower_lag_populate_pre_action(struct nfp_app *app,
328 struct net_device *master,
329 struct nfp_fl_pre_lag *pre_act);
330int nfp_flower_lag_get_output_id(struct nfp_app *app,
331 struct net_device *master);
3166dd07
JH
332int nfp_flower_reg_indir_block_handler(struct nfp_app *app,
333 struct net_device *netdev,
334 unsigned long event);
fd0dd1ab 335
05d2bee6
JH
336void
337__nfp_flower_non_repr_priv_get(struct nfp_flower_non_repr_priv *non_repr_priv);
338struct nfp_flower_non_repr_priv *
339nfp_flower_non_repr_priv_get(struct nfp_app *app, struct net_device *netdev);
340void
341__nfp_flower_non_repr_priv_put(struct nfp_flower_non_repr_priv *non_repr_priv);
342void
343nfp_flower_non_repr_priv_put(struct nfp_app *app, struct net_device *netdev);
4d12ba42
JH
344u32 nfp_flower_get_port_id_from_netdev(struct nfp_app *app,
345 struct net_device *netdev);
8a276873 346#endif