net/hns3: fix key length when configuring RSS
[dpdk.git] / drivers / net / hns3 / hns3_flow.c
1 /* SPDX-License-Identifier: BSD-3-Clause
2  * Copyright(c) 2018-2019 Hisilicon Limited.
3  */
4
5 #include <stdbool.h>
6 #include <sys/queue.h>
7 #include <rte_flow_driver.h>
8 #include <rte_io.h>
9 #include <rte_malloc.h>
10
11 #include "hns3_ethdev.h"
12 #include "hns3_logs.h"
13
14 /* Default default keys */
15 static uint8_t hns3_hash_key[] = {
16         0x6D, 0x5A, 0x56, 0xDA, 0x25, 0x5B, 0x0E, 0xC2,
17         0x41, 0x67, 0x25, 0x3D, 0x43, 0xA3, 0x8F, 0xB0,
18         0xD0, 0xCA, 0x2B, 0xCB, 0xAE, 0x7B, 0x30, 0xB4,
19         0x77, 0xCB, 0x2D, 0xA3, 0x80, 0x30, 0xF2, 0x0C,
20         0x6A, 0x42, 0xB7, 0x3B, 0xBE, 0xAC, 0x01, 0xFA
21 };
22
23 static const uint8_t full_mask[VNI_OR_TNI_LEN] = { 0xFF, 0xFF, 0xFF };
24 static const uint8_t zero_mask[VNI_OR_TNI_LEN] = { 0x00, 0x00, 0x00 };
25
26 /* Special Filter id for non-specific packet flagging. Don't change value */
27 #define HNS3_MAX_FILTER_ID      0x0FFF
28
29 #define ETHER_TYPE_MASK         0xFFFF
30 #define IPPROTO_MASK            0xFF
31 #define TUNNEL_TYPE_MASK        0xFFFF
32
33 #define HNS3_TUNNEL_TYPE_VXLAN          0x12B5
34 #define HNS3_TUNNEL_TYPE_VXLAN_GPE      0x12B6
35 #define HNS3_TUNNEL_TYPE_GENEVE         0x17C1
36 #define HNS3_TUNNEL_TYPE_NVGRE          0x6558
37
38 static enum rte_flow_item_type first_items[] = {
39         RTE_FLOW_ITEM_TYPE_ETH,
40         RTE_FLOW_ITEM_TYPE_IPV4,
41         RTE_FLOW_ITEM_TYPE_IPV6,
42         RTE_FLOW_ITEM_TYPE_TCP,
43         RTE_FLOW_ITEM_TYPE_UDP,
44         RTE_FLOW_ITEM_TYPE_SCTP,
45         RTE_FLOW_ITEM_TYPE_ICMP,
46         RTE_FLOW_ITEM_TYPE_NVGRE,
47         RTE_FLOW_ITEM_TYPE_VXLAN,
48         RTE_FLOW_ITEM_TYPE_GENEVE,
49         RTE_FLOW_ITEM_TYPE_VXLAN_GPE,
50         RTE_FLOW_ITEM_TYPE_MPLS
51 };
52
53 static enum rte_flow_item_type L2_next_items[] = {
54         RTE_FLOW_ITEM_TYPE_VLAN,
55         RTE_FLOW_ITEM_TYPE_IPV4,
56         RTE_FLOW_ITEM_TYPE_IPV6
57 };
58
59 static enum rte_flow_item_type L3_next_items[] = {
60         RTE_FLOW_ITEM_TYPE_TCP,
61         RTE_FLOW_ITEM_TYPE_UDP,
62         RTE_FLOW_ITEM_TYPE_SCTP,
63         RTE_FLOW_ITEM_TYPE_NVGRE,
64         RTE_FLOW_ITEM_TYPE_ICMP
65 };
66
67 static enum rte_flow_item_type L4_next_items[] = {
68         RTE_FLOW_ITEM_TYPE_VXLAN,
69         RTE_FLOW_ITEM_TYPE_GENEVE,
70         RTE_FLOW_ITEM_TYPE_VXLAN_GPE,
71         RTE_FLOW_ITEM_TYPE_MPLS
72 };
73
74 static enum rte_flow_item_type tunnel_next_items[] = {
75         RTE_FLOW_ITEM_TYPE_ETH,
76         RTE_FLOW_ITEM_TYPE_VLAN
77 };
78
79 struct items_step_mngr {
80         enum rte_flow_item_type *items;
81         int count;
82 };
83
84 static inline void
85 net_addr_to_host(uint32_t *dst, const rte_be32_t *src, size_t len)
86 {
87         size_t i;
88
89         for (i = 0; i < len; i++)
90                 dst[i] = rte_be_to_cpu_32(src[i]);
91 }
92
93 static inline const struct rte_flow_action *
94 find_rss_action(const struct rte_flow_action actions[])
95 {
96         const struct rte_flow_action *next = &actions[0];
97
98         for (; next->type != RTE_FLOW_ACTION_TYPE_END; next++) {
99                 if (next->type == RTE_FLOW_ACTION_TYPE_RSS)
100                         return next;
101         }
102         return NULL;
103 }
104
105 static inline struct hns3_flow_counter *
106 hns3_counter_lookup(struct rte_eth_dev *dev, uint32_t id)
107 {
108         struct hns3_adapter *hns = dev->data->dev_private;
109         struct hns3_pf *pf = &hns->pf;
110         struct hns3_flow_counter *cnt;
111
112         LIST_FOREACH(cnt, &pf->flow_counters, next) {
113                 if (cnt->id == id)
114                         return cnt;
115         }
116         return NULL;
117 }
118
119 static int
120 hns3_counter_new(struct rte_eth_dev *dev, uint32_t shared, uint32_t id,
121                  struct rte_flow_error *error)
122 {
123         struct hns3_adapter *hns = dev->data->dev_private;
124         struct hns3_pf *pf = &hns->pf;
125         struct hns3_flow_counter *cnt;
126
127         cnt = hns3_counter_lookup(dev, id);
128         if (cnt) {
129                 if (!cnt->shared || cnt->shared != shared)
130                         return rte_flow_error_set(error, ENOTSUP,
131                                                   RTE_FLOW_ERROR_TYPE_ACTION,
132                                                   cnt,
133                                                   "Counter id is used,shared flag not match");
134                 cnt->ref_cnt++;
135                 return 0;
136         }
137
138         cnt = rte_zmalloc("hns3 counter", sizeof(*cnt), 0);
139         if (cnt == NULL)
140                 return rte_flow_error_set(error, ENOMEM,
141                                           RTE_FLOW_ERROR_TYPE_ACTION, cnt,
142                                           "Alloc mem for counter failed");
143         cnt->id = id;
144         cnt->shared = shared;
145         cnt->ref_cnt = 1;
146         cnt->hits = 0;
147         LIST_INSERT_HEAD(&pf->flow_counters, cnt, next);
148         return 0;
149 }
150
151 static int
152 hns3_counter_query(struct rte_eth_dev *dev, struct rte_flow *flow,
153                    struct rte_flow_query_count *qc,
154                    struct rte_flow_error *error)
155 {
156         struct hns3_adapter *hns = dev->data->dev_private;
157         struct hns3_flow_counter *cnt;
158         uint64_t value;
159         int ret;
160
161         /* FDIR is available only in PF driver */
162         if (hns->is_vf)
163                 return rte_flow_error_set(error, ENOTSUP,
164                                           RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
165                                           "Fdir is not supported in VF");
166         cnt = hns3_counter_lookup(dev, flow->counter_id);
167         if (cnt == NULL)
168                 return rte_flow_error_set(error, EINVAL,
169                                           RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
170                                           "Can't find counter id");
171
172         ret = hns3_get_count(&hns->hw, flow->counter_id, &value);
173         if (ret) {
174                 rte_flow_error_set(error, -ret,
175                                    RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
176                                    NULL, "Read counter fail.");
177                 return ret;
178         }
179         qc->hits_set = 1;
180         qc->hits = value;
181
182         return 0;
183 }
184
185 static int
186 hns3_counter_release(struct rte_eth_dev *dev, uint32_t id)
187 {
188         struct hns3_adapter *hns = dev->data->dev_private;
189         struct hns3_hw *hw = &hns->hw;
190         struct hns3_flow_counter *cnt;
191
192         cnt = hns3_counter_lookup(dev, id);
193         if (cnt == NULL) {
194                 hns3_err(hw, "Can't find available counter to release");
195                 return -EINVAL;
196         }
197         cnt->ref_cnt--;
198         if (cnt->ref_cnt == 0) {
199                 LIST_REMOVE(cnt, next);
200                 rte_free(cnt);
201         }
202         return 0;
203 }
204
205 static void
206 hns3_counter_flush(struct rte_eth_dev *dev)
207 {
208         struct hns3_adapter *hns = dev->data->dev_private;
209         struct hns3_pf *pf = &hns->pf;
210         struct hns3_flow_counter *cnt_ptr;
211
212         cnt_ptr = LIST_FIRST(&pf->flow_counters);
213         while (cnt_ptr) {
214                 LIST_REMOVE(cnt_ptr, next);
215                 rte_free(cnt_ptr);
216                 cnt_ptr = LIST_FIRST(&pf->flow_counters);
217         }
218 }
219
220 static int
221 hns3_handle_action_queue(struct rte_eth_dev *dev,
222                          const struct rte_flow_action *action,
223                          struct hns3_fdir_rule *rule,
224                          struct rte_flow_error *error)
225 {
226         struct hns3_adapter *hns = dev->data->dev_private;
227         const struct rte_flow_action_queue *queue;
228         struct hns3_hw *hw = &hns->hw;
229
230         queue = (const struct rte_flow_action_queue *)action->conf;
231         if (queue->index >= hw->used_rx_queues) {
232                 hns3_err(hw, "queue ID(%d) is greater than number of "
233                           "available queue (%d) in driver.",
234                           queue->index, hw->used_rx_queues);
235                 return rte_flow_error_set(error, EINVAL,
236                                           RTE_FLOW_ERROR_TYPE_ACTION, action,
237                                           "Invalid queue ID in PF");
238         }
239
240         rule->queue_id = queue->index;
241         rule->action = HNS3_FD_ACTION_ACCEPT_PACKET;
242         return 0;
243 }
244
245 /*
246  * Parse actions structure from the provided pattern.
247  * The pattern is validated as the items are copied.
248  *
249  * @param actions[in]
250  * @param rule[out]
251  *   NIC specfilc actions derived from the actions.
252  * @param error[out]
253  */
254 static int
255 hns3_handle_actions(struct rte_eth_dev *dev,
256                     const struct rte_flow_action actions[],
257                     struct hns3_fdir_rule *rule, struct rte_flow_error *error)
258 {
259         struct hns3_adapter *hns = dev->data->dev_private;
260         const struct rte_flow_action_count *act_count;
261         const struct rte_flow_action_mark *mark;
262         struct hns3_pf *pf = &hns->pf;
263         uint32_t counter_num;
264         int ret;
265
266         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
267                 switch (actions->type) {
268                 case RTE_FLOW_ACTION_TYPE_QUEUE:
269                         ret = hns3_handle_action_queue(dev, actions, rule,
270                                                        error);
271                         if (ret)
272                                 return ret;
273                         break;
274                 case RTE_FLOW_ACTION_TYPE_DROP:
275                         rule->action = HNS3_FD_ACTION_DROP_PACKET;
276                         break;
277                 case RTE_FLOW_ACTION_TYPE_MARK:
278                         mark =
279                             (const struct rte_flow_action_mark *)actions->conf;
280                         if (mark->id >= HNS3_MAX_FILTER_ID)
281                                 return rte_flow_error_set(error, EINVAL,
282                                                      RTE_FLOW_ERROR_TYPE_ACTION,
283                                                      actions,
284                                                      "Invalid Mark ID");
285                         rule->fd_id = mark->id;
286                         rule->flags |= HNS3_RULE_FLAG_FDID;
287                         break;
288                 case RTE_FLOW_ACTION_TYPE_FLAG:
289                         rule->fd_id = HNS3_MAX_FILTER_ID;
290                         rule->flags |= HNS3_RULE_FLAG_FDID;
291                         break;
292                 case RTE_FLOW_ACTION_TYPE_COUNT:
293                         act_count =
294                             (const struct rte_flow_action_count *)actions->conf;
295                         counter_num = pf->fdir.fd_cfg.cnt_num[HNS3_FD_STAGE_1];
296                         if (act_count->id >= counter_num)
297                                 return rte_flow_error_set(error, EINVAL,
298                                                      RTE_FLOW_ERROR_TYPE_ACTION,
299                                                      actions,
300                                                      "Invalid counter id");
301                         rule->act_cnt = *act_count;
302                         rule->flags |= HNS3_RULE_FLAG_COUNTER;
303                         break;
304                 case RTE_FLOW_ACTION_TYPE_VOID:
305                         break;
306                 default:
307                         return rte_flow_error_set(error, ENOTSUP,
308                                                   RTE_FLOW_ERROR_TYPE_ACTION,
309                                                   NULL, "Unsupported action");
310                 }
311         }
312
313         return 0;
314 }
315
316 /* Parse to get the attr and action info of flow director rule. */
317 static int
318 hns3_check_attr(const struct rte_flow_attr *attr, struct rte_flow_error *error)
319 {
320         if (!attr->ingress)
321                 return rte_flow_error_set(error, EINVAL,
322                                           RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
323                                           attr, "Ingress can't be zero");
324         if (attr->egress)
325                 return rte_flow_error_set(error, ENOTSUP,
326                                           RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
327                                           attr, "Not support egress");
328         if (attr->transfer)
329                 return rte_flow_error_set(error, ENOTSUP,
330                                           RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER,
331                                           attr, "No support for transfer");
332         if (attr->priority)
333                 return rte_flow_error_set(error, ENOTSUP,
334                                           RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
335                                           attr, "Not support priority");
336         if (attr->group)
337                 return rte_flow_error_set(error, ENOTSUP,
338                                           RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
339                                           attr, "Not support group");
340         return 0;
341 }
342
343 static int
344 hns3_parse_eth(const struct rte_flow_item *item,
345                    struct hns3_fdir_rule *rule, struct rte_flow_error *error)
346 {
347         const struct rte_flow_item_eth *eth_spec;
348         const struct rte_flow_item_eth *eth_mask;
349
350         if (item->spec == NULL && item->mask)
351                 return rte_flow_error_set(error, EINVAL,
352                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
353                                           "Can't configure FDIR with mask but without spec");
354
355         /* Only used to describe the protocol stack. */
356         if (item->spec == NULL && item->mask == NULL)
357                 return 0;
358
359         if (item->mask) {
360                 eth_mask = item->mask;
361                 if (eth_mask->type) {
362                         hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 1);
363                         rule->key_conf.mask.ether_type =
364                             rte_be_to_cpu_16(eth_mask->type);
365                 }
366                 if (!rte_is_zero_ether_addr(&eth_mask->src)) {
367                         hns3_set_bit(rule->input_set, INNER_SRC_MAC, 1);
368                         memcpy(rule->key_conf.mask.src_mac,
369                                eth_mask->src.addr_bytes, RTE_ETHER_ADDR_LEN);
370                 }
371                 if (!rte_is_zero_ether_addr(&eth_mask->dst)) {
372                         hns3_set_bit(rule->input_set, INNER_DST_MAC, 1);
373                         memcpy(rule->key_conf.mask.dst_mac,
374                                eth_mask->dst.addr_bytes, RTE_ETHER_ADDR_LEN);
375                 }
376         }
377
378         eth_spec = item->spec;
379         rule->key_conf.spec.ether_type = rte_be_to_cpu_16(eth_spec->type);
380         memcpy(rule->key_conf.spec.src_mac, eth_spec->src.addr_bytes,
381                RTE_ETHER_ADDR_LEN);
382         memcpy(rule->key_conf.spec.dst_mac, eth_spec->dst.addr_bytes,
383                RTE_ETHER_ADDR_LEN);
384         return 0;
385 }
386
387 static int
388 hns3_parse_vlan(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
389                 struct rte_flow_error *error)
390 {
391         const struct rte_flow_item_vlan *vlan_spec;
392         const struct rte_flow_item_vlan *vlan_mask;
393
394         if (item->spec == NULL && item->mask)
395                 return rte_flow_error_set(error, EINVAL,
396                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
397                                           "Can't configure FDIR with mask but without spec");
398
399         rule->key_conf.vlan_num++;
400         if (rule->key_conf.vlan_num > VLAN_TAG_NUM_MAX)
401                 return rte_flow_error_set(error, EINVAL,
402                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
403                                           "Vlan_num is more than 2");
404
405         /* Only used to describe the protocol stack. */
406         if (item->spec == NULL && item->mask == NULL)
407                 return 0;
408
409         if (item->mask) {
410                 vlan_mask = item->mask;
411                 if (vlan_mask->tci) {
412                         if (rule->key_conf.vlan_num == 1) {
413                                 hns3_set_bit(rule->input_set, INNER_VLAN_TAG1,
414                                              1);
415                                 rule->key_conf.mask.vlan_tag1 =
416                                     rte_be_to_cpu_16(vlan_mask->tci);
417                         } else {
418                                 hns3_set_bit(rule->input_set, INNER_VLAN_TAG2,
419                                              1);
420                                 rule->key_conf.mask.vlan_tag2 =
421                                     rte_be_to_cpu_16(vlan_mask->tci);
422                         }
423                 }
424         }
425
426         vlan_spec = item->spec;
427         if (rule->key_conf.vlan_num == 1)
428                 rule->key_conf.spec.vlan_tag1 =
429                     rte_be_to_cpu_16(vlan_spec->tci);
430         else
431                 rule->key_conf.spec.vlan_tag2 =
432                     rte_be_to_cpu_16(vlan_spec->tci);
433         return 0;
434 }
435
436 static int
437 hns3_parse_ipv4(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
438                 struct rte_flow_error *error)
439 {
440         const struct rte_flow_item_ipv4 *ipv4_spec;
441         const struct rte_flow_item_ipv4 *ipv4_mask;
442
443         if (item->spec == NULL && item->mask)
444                 return rte_flow_error_set(error, EINVAL,
445                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
446                                           "Can't configure FDIR with mask but without spec");
447
448         hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 1);
449         rule->key_conf.spec.ether_type = RTE_ETHER_TYPE_IPV4;
450         rule->key_conf.mask.ether_type = ETHER_TYPE_MASK;
451         /* Only used to describe the protocol stack. */
452         if (item->spec == NULL && item->mask == NULL)
453                 return 0;
454
455         if (item->mask) {
456                 ipv4_mask = item->mask;
457
458                 if (ipv4_mask->hdr.total_length ||
459                     ipv4_mask->hdr.packet_id ||
460                     ipv4_mask->hdr.fragment_offset ||
461                     ipv4_mask->hdr.time_to_live ||
462                     ipv4_mask->hdr.hdr_checksum) {
463                         return rte_flow_error_set(error, EINVAL,
464                                                   RTE_FLOW_ERROR_TYPE_ITEM,
465                                                   item,
466                                                   "Only support src & dst ip,tos,proto in IPV4");
467                 }
468
469                 if (ipv4_mask->hdr.src_addr) {
470                         hns3_set_bit(rule->input_set, INNER_SRC_IP, 1);
471                         rule->key_conf.mask.src_ip[IP_ADDR_KEY_ID] =
472                             rte_be_to_cpu_32(ipv4_mask->hdr.src_addr);
473                 }
474
475                 if (ipv4_mask->hdr.dst_addr) {
476                         hns3_set_bit(rule->input_set, INNER_DST_IP, 1);
477                         rule->key_conf.mask.dst_ip[IP_ADDR_KEY_ID] =
478                             rte_be_to_cpu_32(ipv4_mask->hdr.dst_addr);
479                 }
480
481                 if (ipv4_mask->hdr.type_of_service) {
482                         hns3_set_bit(rule->input_set, INNER_IP_TOS, 1);
483                         rule->key_conf.mask.ip_tos =
484                             ipv4_mask->hdr.type_of_service;
485                 }
486
487                 if (ipv4_mask->hdr.next_proto_id) {
488                         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
489                         rule->key_conf.mask.ip_proto =
490                             ipv4_mask->hdr.next_proto_id;
491                 }
492         }
493
494         ipv4_spec = item->spec;
495         rule->key_conf.spec.src_ip[IP_ADDR_KEY_ID] =
496             rte_be_to_cpu_32(ipv4_spec->hdr.src_addr);
497         rule->key_conf.spec.dst_ip[IP_ADDR_KEY_ID] =
498             rte_be_to_cpu_32(ipv4_spec->hdr.dst_addr);
499         rule->key_conf.spec.ip_tos = ipv4_spec->hdr.type_of_service;
500         rule->key_conf.spec.ip_proto = ipv4_spec->hdr.next_proto_id;
501         return 0;
502 }
503
504 static int
505 hns3_parse_ipv6(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
506                 struct rte_flow_error *error)
507 {
508         const struct rte_flow_item_ipv6 *ipv6_spec;
509         const struct rte_flow_item_ipv6 *ipv6_mask;
510
511         if (item->spec == NULL && item->mask)
512                 return rte_flow_error_set(error, EINVAL,
513                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
514                                           "Can't configure FDIR with mask but without spec");
515
516         hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 1);
517         rule->key_conf.spec.ether_type = RTE_ETHER_TYPE_IPV6;
518         rule->key_conf.mask.ether_type = ETHER_TYPE_MASK;
519
520         /* Only used to describe the protocol stack. */
521         if (item->spec == NULL && item->mask == NULL)
522                 return 0;
523
524         if (item->mask) {
525                 ipv6_mask = item->mask;
526                 if (ipv6_mask->hdr.vtc_flow ||
527                     ipv6_mask->hdr.payload_len || ipv6_mask->hdr.hop_limits) {
528                         return rte_flow_error_set(error, EINVAL,
529                                                   RTE_FLOW_ERROR_TYPE_ITEM,
530                                                   item,
531                                                   "Only support src & dst ip,proto in IPV6");
532                 }
533                 net_addr_to_host(rule->key_conf.mask.src_ip,
534                                  (const rte_be32_t *)ipv6_mask->hdr.src_addr,
535                                  IP_ADDR_LEN);
536                 net_addr_to_host(rule->key_conf.mask.dst_ip,
537                                  (const rte_be32_t *)ipv6_mask->hdr.dst_addr,
538                                  IP_ADDR_LEN);
539                 rule->key_conf.mask.ip_proto = ipv6_mask->hdr.proto;
540                 if (rule->key_conf.mask.src_ip[IP_ADDR_KEY_ID])
541                         hns3_set_bit(rule->input_set, INNER_SRC_IP, 1);
542                 if (rule->key_conf.mask.dst_ip[IP_ADDR_KEY_ID])
543                         hns3_set_bit(rule->input_set, INNER_DST_IP, 1);
544                 if (ipv6_mask->hdr.proto)
545                         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
546         }
547
548         ipv6_spec = item->spec;
549         net_addr_to_host(rule->key_conf.spec.src_ip,
550                          (const rte_be32_t *)ipv6_spec->hdr.src_addr,
551                          IP_ADDR_LEN);
552         net_addr_to_host(rule->key_conf.spec.dst_ip,
553                          (const rte_be32_t *)ipv6_spec->hdr.dst_addr,
554                          IP_ADDR_LEN);
555         rule->key_conf.spec.ip_proto = ipv6_spec->hdr.proto;
556
557         return 0;
558 }
559
560 static int
561 hns3_parse_tcp(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
562                struct rte_flow_error *error)
563 {
564         const struct rte_flow_item_tcp *tcp_spec;
565         const struct rte_flow_item_tcp *tcp_mask;
566
567         if (item->spec == NULL && item->mask)
568                 return rte_flow_error_set(error, EINVAL,
569                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
570                                           "Can't configure FDIR with mask but without spec");
571
572         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
573         rule->key_conf.spec.ip_proto = IPPROTO_TCP;
574         rule->key_conf.mask.ip_proto = IPPROTO_MASK;
575
576         /* Only used to describe the protocol stack. */
577         if (item->spec == NULL && item->mask == NULL)
578                 return 0;
579
580         if (item->mask) {
581                 tcp_mask = item->mask;
582                 if (tcp_mask->hdr.sent_seq ||
583                     tcp_mask->hdr.recv_ack ||
584                     tcp_mask->hdr.data_off ||
585                     tcp_mask->hdr.tcp_flags ||
586                     tcp_mask->hdr.rx_win ||
587                     tcp_mask->hdr.cksum || tcp_mask->hdr.tcp_urp) {
588                         return rte_flow_error_set(error, EINVAL,
589                                                   RTE_FLOW_ERROR_TYPE_ITEM,
590                                                   item,
591                                                   "Only support src & dst port in TCP");
592                 }
593
594                 if (tcp_mask->hdr.src_port) {
595                         hns3_set_bit(rule->input_set, INNER_SRC_PORT, 1);
596                         rule->key_conf.mask.src_port =
597                             rte_be_to_cpu_16(tcp_mask->hdr.src_port);
598                 }
599                 if (tcp_mask->hdr.dst_port) {
600                         hns3_set_bit(rule->input_set, INNER_DST_PORT, 1);
601                         rule->key_conf.mask.dst_port =
602                             rte_be_to_cpu_16(tcp_mask->hdr.dst_port);
603                 }
604         }
605
606         tcp_spec = item->spec;
607         rule->key_conf.spec.src_port = rte_be_to_cpu_16(tcp_spec->hdr.src_port);
608         rule->key_conf.spec.dst_port = rte_be_to_cpu_16(tcp_spec->hdr.dst_port);
609
610         return 0;
611 }
612
613 static int
614 hns3_parse_udp(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
615                struct rte_flow_error *error)
616 {
617         const struct rte_flow_item_udp *udp_spec;
618         const struct rte_flow_item_udp *udp_mask;
619
620         if (item->spec == NULL && item->mask)
621                 return rte_flow_error_set(error, EINVAL,
622                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
623                                           "Can't configure FDIR with mask but without spec");
624
625         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
626         rule->key_conf.spec.ip_proto = IPPROTO_UDP;
627         rule->key_conf.mask.ip_proto = IPPROTO_MASK;
628         /* Only used to describe the protocol stack. */
629         if (item->spec == NULL && item->mask == NULL)
630                 return 0;
631
632         if (item->mask) {
633                 udp_mask = item->mask;
634                 if (udp_mask->hdr.dgram_len || udp_mask->hdr.dgram_cksum) {
635                         return rte_flow_error_set(error, EINVAL,
636                                                   RTE_FLOW_ERROR_TYPE_ITEM,
637                                                   item,
638                                                   "Only support src & dst port in UDP");
639                 }
640                 if (udp_mask->hdr.src_port) {
641                         hns3_set_bit(rule->input_set, INNER_SRC_PORT, 1);
642                         rule->key_conf.mask.src_port =
643                             rte_be_to_cpu_16(udp_mask->hdr.src_port);
644                 }
645                 if (udp_mask->hdr.dst_port) {
646                         hns3_set_bit(rule->input_set, INNER_DST_PORT, 1);
647                         rule->key_conf.mask.dst_port =
648                             rte_be_to_cpu_16(udp_mask->hdr.dst_port);
649                 }
650         }
651
652         udp_spec = item->spec;
653         rule->key_conf.spec.src_port = rte_be_to_cpu_16(udp_spec->hdr.src_port);
654         rule->key_conf.spec.dst_port = rte_be_to_cpu_16(udp_spec->hdr.dst_port);
655
656         return 0;
657 }
658
659 static int
660 hns3_parse_sctp(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
661                 struct rte_flow_error *error)
662 {
663         const struct rte_flow_item_sctp *sctp_spec;
664         const struct rte_flow_item_sctp *sctp_mask;
665
666         if (item->spec == NULL && item->mask)
667                 return rte_flow_error_set(error, EINVAL,
668                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
669                                           "Can't configure FDIR with mask but without spec");
670
671         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
672         rule->key_conf.spec.ip_proto = IPPROTO_SCTP;
673         rule->key_conf.mask.ip_proto = IPPROTO_MASK;
674
675         /* Only used to describe the protocol stack. */
676         if (item->spec == NULL && item->mask == NULL)
677                 return 0;
678
679         if (item->mask) {
680                 sctp_mask = item->mask;
681                 if (sctp_mask->hdr.cksum)
682                         return rte_flow_error_set(error, EINVAL,
683                                                   RTE_FLOW_ERROR_TYPE_ITEM,
684                                                   item,
685                                                   "Only support src & dst port in SCTP");
686
687                 if (sctp_mask->hdr.src_port) {
688                         hns3_set_bit(rule->input_set, INNER_SRC_PORT, 1);
689                         rule->key_conf.mask.src_port =
690                             rte_be_to_cpu_16(sctp_mask->hdr.src_port);
691                 }
692                 if (sctp_mask->hdr.dst_port) {
693                         hns3_set_bit(rule->input_set, INNER_DST_PORT, 1);
694                         rule->key_conf.mask.dst_port =
695                             rte_be_to_cpu_16(sctp_mask->hdr.dst_port);
696                 }
697                 if (sctp_mask->hdr.tag) {
698                         hns3_set_bit(rule->input_set, INNER_SCTP_TAG, 1);
699                         rule->key_conf.mask.sctp_tag =
700                             rte_be_to_cpu_32(sctp_mask->hdr.tag);
701                 }
702         }
703
704         sctp_spec = item->spec;
705         rule->key_conf.spec.src_port =
706             rte_be_to_cpu_16(sctp_spec->hdr.src_port);
707         rule->key_conf.spec.dst_port =
708             rte_be_to_cpu_16(sctp_spec->hdr.dst_port);
709         rule->key_conf.spec.sctp_tag = rte_be_to_cpu_32(sctp_spec->hdr.tag);
710
711         return 0;
712 }
713
714 /*
715  * Check items before tunnel, save inner configs to outer configs,and clear
716  * inner configs.
717  * The key consists of two parts: meta_data and tuple keys.
718  * Meta data uses 15 bits, including vlan_num(2bit), des_port(12bit) and tunnel
719  * packet(1bit).
720  * Tuple keys uses 384bit, including ot_dst-mac(48bit), ot_dst-port(16bit),
721  * ot_tun_vni(24bit), ot_flow_id(8bit), src-mac(48bit), dst-mac(48bit),
722  * src-ip(32/128bit), dst-ip(32/128bit), src-port(16bit), dst-port(16bit),
723  * tos(8bit), ether-proto(16bit), ip-proto(8bit), vlantag1(16bit),
724  * Vlantag2(16bit) and sctp-tag(32bit).
725  */
726 static int
727 hns3_handle_tunnel(const struct rte_flow_item *item,
728                    struct hns3_fdir_rule *rule, struct rte_flow_error *error)
729 {
730         /* check eth config */
731         if (rule->input_set & (BIT(INNER_SRC_MAC) | BIT(INNER_DST_MAC)))
732                 return rte_flow_error_set(error, EINVAL,
733                                           RTE_FLOW_ERROR_TYPE_ITEM,
734                                           item, "Outer eth mac is unsupported");
735         if (rule->input_set & BIT(INNER_ETH_TYPE)) {
736                 hns3_set_bit(rule->input_set, OUTER_ETH_TYPE, 1);
737                 rule->key_conf.spec.outer_ether_type =
738                     rule->key_conf.spec.ether_type;
739                 rule->key_conf.mask.outer_ether_type =
740                     rule->key_conf.mask.ether_type;
741                 hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 0);
742                 rule->key_conf.spec.ether_type = 0;
743                 rule->key_conf.mask.ether_type = 0;
744         }
745
746         /* check vlan config */
747         if (rule->input_set & (BIT(INNER_VLAN_TAG1) | BIT(INNER_VLAN_TAG2)))
748                 return rte_flow_error_set(error, EINVAL,
749                                           RTE_FLOW_ERROR_TYPE_ITEM,
750                                           item,
751                                           "Outer vlan tags is unsupported");
752
753         /* clear vlan_num for inner vlan select */
754         rule->key_conf.outer_vlan_num = rule->key_conf.vlan_num;
755         rule->key_conf.vlan_num = 0;
756
757         /* check L3 config */
758         if (rule->input_set &
759             (BIT(INNER_SRC_IP) | BIT(INNER_DST_IP) | BIT(INNER_IP_TOS)))
760                 return rte_flow_error_set(error, EINVAL,
761                                           RTE_FLOW_ERROR_TYPE_ITEM,
762                                           item, "Outer ip is unsupported");
763         if (rule->input_set & BIT(INNER_IP_PROTO)) {
764                 hns3_set_bit(rule->input_set, OUTER_IP_PROTO, 1);
765                 rule->key_conf.spec.outer_proto = rule->key_conf.spec.ip_proto;
766                 rule->key_conf.mask.outer_proto = rule->key_conf.mask.ip_proto;
767                 hns3_set_bit(rule->input_set, INNER_IP_PROTO, 0);
768                 rule->key_conf.spec.ip_proto = 0;
769                 rule->key_conf.mask.ip_proto = 0;
770         }
771
772         /* check L4 config */
773         if (rule->input_set & BIT(INNER_SCTP_TAG))
774                 return rte_flow_error_set(error, EINVAL,
775                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
776                                           "Outer sctp tag is unsupported");
777
778         if (rule->input_set & BIT(INNER_SRC_PORT)) {
779                 hns3_set_bit(rule->input_set, OUTER_SRC_PORT, 1);
780                 rule->key_conf.spec.outer_src_port =
781                     rule->key_conf.spec.src_port;
782                 rule->key_conf.mask.outer_src_port =
783                     rule->key_conf.mask.src_port;
784                 hns3_set_bit(rule->input_set, INNER_SRC_PORT, 0);
785                 rule->key_conf.spec.src_port = 0;
786                 rule->key_conf.mask.src_port = 0;
787         }
788         if (rule->input_set & BIT(INNER_DST_PORT)) {
789                 hns3_set_bit(rule->input_set, INNER_DST_PORT, 0);
790                 rule->key_conf.spec.dst_port = 0;
791                 rule->key_conf.mask.dst_port = 0;
792         }
793         return 0;
794 }
795
796 static int
797 hns3_parse_vxlan(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
798                  struct rte_flow_error *error)
799 {
800         const struct rte_flow_item_vxlan *vxlan_spec;
801         const struct rte_flow_item_vxlan *vxlan_mask;
802
803         if (item->spec == NULL && item->mask)
804                 return rte_flow_error_set(error, EINVAL,
805                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
806                                           "Can't configure FDIR with mask but without spec");
807         else if (item->spec && (item->mask == NULL))
808                 return rte_flow_error_set(error, EINVAL,
809                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
810                                           "Tunnel packets must configure with mask");
811
812         hns3_set_bit(rule->input_set, OUTER_DST_PORT, 1);
813         rule->key_conf.mask.tunnel_type = TUNNEL_TYPE_MASK;
814         if (item->type == RTE_FLOW_ITEM_TYPE_VXLAN)
815                 rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_VXLAN;
816         else
817                 rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_VXLAN_GPE;
818
819         /* Only used to describe the protocol stack. */
820         if (item->spec == NULL && item->mask == NULL)
821                 return 0;
822
823         vxlan_mask = item->mask;
824         vxlan_spec = item->spec;
825
826         if (vxlan_mask->flags)
827                 return rte_flow_error_set(error, EINVAL,
828                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
829                                           "Flags is not supported in VxLAN");
830
831         /* VNI must be totally masked or not. */
832         if (memcmp(vxlan_mask->vni, full_mask, VNI_OR_TNI_LEN) &&
833             memcmp(vxlan_mask->vni, zero_mask, VNI_OR_TNI_LEN))
834                 return rte_flow_error_set(error, EINVAL,
835                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
836                                           "VNI must be totally masked or not in VxLAN");
837         if (vxlan_mask->vni[0]) {
838                 hns3_set_bit(rule->input_set, OUTER_TUN_VNI, 1);
839                 memcpy(rule->key_conf.mask.outer_tun_vni, vxlan_mask->vni,
840                            VNI_OR_TNI_LEN);
841         }
842         memcpy(rule->key_conf.spec.outer_tun_vni, vxlan_spec->vni,
843                    VNI_OR_TNI_LEN);
844         return 0;
845 }
846
847 static int
848 hns3_parse_nvgre(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
849                  struct rte_flow_error *error)
850 {
851         const struct rte_flow_item_nvgre *nvgre_spec;
852         const struct rte_flow_item_nvgre *nvgre_mask;
853
854         if (item->spec == NULL && item->mask)
855                 return rte_flow_error_set(error, EINVAL,
856                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
857                                           "Can't configure FDIR with mask but without spec");
858         else if (item->spec && (item->mask == NULL))
859                 return rte_flow_error_set(error, EINVAL,
860                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
861                                           "Tunnel packets must configure with mask");
862
863         hns3_set_bit(rule->input_set, OUTER_IP_PROTO, 1);
864         rule->key_conf.spec.outer_proto = IPPROTO_GRE;
865         rule->key_conf.mask.outer_proto = IPPROTO_MASK;
866
867         hns3_set_bit(rule->input_set, OUTER_DST_PORT, 1);
868         rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_NVGRE;
869         rule->key_conf.mask.tunnel_type = ~HNS3_TUNNEL_TYPE_NVGRE;
870         /* Only used to describe the protocol stack. */
871         if (item->spec == NULL && item->mask == NULL)
872                 return 0;
873
874         nvgre_mask = item->mask;
875         nvgre_spec = item->spec;
876
877         if (nvgre_mask->protocol || nvgre_mask->c_k_s_rsvd0_ver)
878                 return rte_flow_error_set(error, EINVAL,
879                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
880                                           "Ver/protocal is not supported in NVGRE");
881
882         /* TNI must be totally masked or not. */
883         if (memcmp(nvgre_mask->tni, full_mask, VNI_OR_TNI_LEN) &&
884             memcmp(nvgre_mask->tni, zero_mask, VNI_OR_TNI_LEN))
885                 return rte_flow_error_set(error, EINVAL,
886                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
887                                           "TNI must be totally masked or not in NVGRE");
888
889         if (nvgre_mask->tni[0]) {
890                 hns3_set_bit(rule->input_set, OUTER_TUN_VNI, 1);
891                 memcpy(rule->key_conf.mask.outer_tun_vni, nvgre_mask->tni,
892                            VNI_OR_TNI_LEN);
893         }
894         memcpy(rule->key_conf.spec.outer_tun_vni, nvgre_spec->tni,
895                    VNI_OR_TNI_LEN);
896
897         if (nvgre_mask->flow_id) {
898                 hns3_set_bit(rule->input_set, OUTER_TUN_FLOW_ID, 1);
899                 rule->key_conf.mask.outer_tun_flow_id = nvgre_mask->flow_id;
900         }
901         rule->key_conf.spec.outer_tun_flow_id = nvgre_spec->flow_id;
902         return 0;
903 }
904
905 static int
906 hns3_parse_geneve(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
907                   struct rte_flow_error *error)
908 {
909         const struct rte_flow_item_geneve *geneve_spec;
910         const struct rte_flow_item_geneve *geneve_mask;
911
912         if (item->spec == NULL && item->mask)
913                 return rte_flow_error_set(error, EINVAL,
914                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
915                                           "Can't configure FDIR with mask but without spec");
916         else if (item->spec && (item->mask == NULL))
917                 return rte_flow_error_set(error, EINVAL,
918                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
919                                           "Tunnel packets must configure with mask");
920
921         hns3_set_bit(rule->input_set, OUTER_DST_PORT, 1);
922         rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_GENEVE;
923         rule->key_conf.mask.tunnel_type = TUNNEL_TYPE_MASK;
924         /* Only used to describe the protocol stack. */
925         if (item->spec == NULL && item->mask == NULL)
926                 return 0;
927
928         geneve_mask = item->mask;
929         geneve_spec = item->spec;
930
931         if (geneve_mask->ver_opt_len_o_c_rsvd0 || geneve_mask->protocol)
932                 return rte_flow_error_set(error, EINVAL,
933                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
934                                           "Ver/protocal is not supported in GENEVE");
935         /* VNI must be totally masked or not. */
936         if (memcmp(geneve_mask->vni, full_mask, VNI_OR_TNI_LEN) &&
937             memcmp(geneve_mask->vni, zero_mask, VNI_OR_TNI_LEN))
938                 return rte_flow_error_set(error, EINVAL,
939                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
940                                           "VNI must be totally masked or not in GENEVE");
941         if (geneve_mask->vni[0]) {
942                 hns3_set_bit(rule->input_set, OUTER_TUN_VNI, 1);
943                 memcpy(rule->key_conf.mask.outer_tun_vni, geneve_mask->vni,
944                            VNI_OR_TNI_LEN);
945         }
946         memcpy(rule->key_conf.spec.outer_tun_vni, geneve_spec->vni,
947                    VNI_OR_TNI_LEN);
948         return 0;
949 }
950
951 static int
952 hns3_parse_tunnel(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
953                   struct rte_flow_error *error)
954 {
955         int ret;
956
957         switch (item->type) {
958         case RTE_FLOW_ITEM_TYPE_VXLAN:
959         case RTE_FLOW_ITEM_TYPE_VXLAN_GPE:
960                 ret = hns3_parse_vxlan(item, rule, error);
961                 break;
962         case RTE_FLOW_ITEM_TYPE_NVGRE:
963                 ret = hns3_parse_nvgre(item, rule, error);
964                 break;
965         case RTE_FLOW_ITEM_TYPE_GENEVE:
966                 ret = hns3_parse_geneve(item, rule, error);
967                 break;
968         default:
969                 return rte_flow_error_set(error, ENOTSUP,
970                                           RTE_FLOW_ERROR_TYPE_HANDLE,
971                                           NULL, "Unsupported tunnel type!");
972         }
973         if (ret)
974                 return ret;
975         return hns3_handle_tunnel(item, rule, error);
976 }
977
978 static int
979 hns3_parse_normal(const struct rte_flow_item *item,
980                   struct hns3_fdir_rule *rule,
981                   struct items_step_mngr *step_mngr,
982                   struct rte_flow_error *error)
983 {
984         int ret;
985
986         switch (item->type) {
987         case RTE_FLOW_ITEM_TYPE_ETH:
988                 ret = hns3_parse_eth(item, rule, error);
989                 step_mngr->items = L2_next_items;
990                 step_mngr->count = ARRAY_SIZE(L2_next_items);
991                 break;
992         case RTE_FLOW_ITEM_TYPE_VLAN:
993                 ret = hns3_parse_vlan(item, rule, error);
994                 step_mngr->items = L2_next_items;
995                 step_mngr->count = ARRAY_SIZE(L2_next_items);
996                 break;
997         case RTE_FLOW_ITEM_TYPE_IPV4:
998                 ret = hns3_parse_ipv4(item, rule, error);
999                 step_mngr->items = L3_next_items;
1000                 step_mngr->count = ARRAY_SIZE(L3_next_items);
1001                 break;
1002         case RTE_FLOW_ITEM_TYPE_IPV6:
1003                 ret = hns3_parse_ipv6(item, rule, error);
1004                 step_mngr->items = L3_next_items;
1005                 step_mngr->count = ARRAY_SIZE(L3_next_items);
1006                 break;
1007         case RTE_FLOW_ITEM_TYPE_TCP:
1008                 ret = hns3_parse_tcp(item, rule, error);
1009                 step_mngr->items = L4_next_items;
1010                 step_mngr->count = ARRAY_SIZE(L4_next_items);
1011                 break;
1012         case RTE_FLOW_ITEM_TYPE_UDP:
1013                 ret = hns3_parse_udp(item, rule, error);
1014                 step_mngr->items = L4_next_items;
1015                 step_mngr->count = ARRAY_SIZE(L4_next_items);
1016                 break;
1017         case RTE_FLOW_ITEM_TYPE_SCTP:
1018                 ret = hns3_parse_sctp(item, rule, error);
1019                 step_mngr->items = L4_next_items;
1020                 step_mngr->count = ARRAY_SIZE(L4_next_items);
1021                 break;
1022         default:
1023                 return rte_flow_error_set(error, ENOTSUP,
1024                                           RTE_FLOW_ERROR_TYPE_HANDLE,
1025                                           NULL, "Unsupported normal type!");
1026         }
1027
1028         return ret;
1029 }
1030
1031 static int
1032 hns3_validate_item(const struct rte_flow_item *item,
1033                    struct items_step_mngr step_mngr,
1034                    struct rte_flow_error *error)
1035 {
1036         int i;
1037
1038         if (item->last)
1039                 return rte_flow_error_set(error, ENOTSUP,
1040                                           RTE_FLOW_ERROR_TYPE_UNSPECIFIED, item,
1041                                           "Not supported last point for range");
1042
1043         for (i = 0; i < step_mngr.count; i++) {
1044                 if (item->type == step_mngr.items[i])
1045                         break;
1046         }
1047
1048         if (i == step_mngr.count) {
1049                 return rte_flow_error_set(error, EINVAL,
1050                                           RTE_FLOW_ERROR_TYPE_ITEM,
1051                                           item, "Inval or missing item");
1052         }
1053         return 0;
1054 }
1055
1056 static inline bool
1057 is_tunnel_packet(enum rte_flow_item_type type)
1058 {
1059         if (type == RTE_FLOW_ITEM_TYPE_VXLAN_GPE ||
1060             type == RTE_FLOW_ITEM_TYPE_VXLAN ||
1061             type == RTE_FLOW_ITEM_TYPE_NVGRE ||
1062             type == RTE_FLOW_ITEM_TYPE_GENEVE ||
1063             type == RTE_FLOW_ITEM_TYPE_MPLS)
1064                 return true;
1065         return false;
1066 }
1067
1068 /*
1069  * Parse the rule to see if it is a IP or MAC VLAN flow director rule.
1070  * And get the flow director filter info BTW.
1071  * UDP/TCP/SCTP PATTERN:
1072  * The first not void item can be ETH or IPV4 or IPV6
1073  * The second not void item must be IPV4 or IPV6 if the first one is ETH.
1074  * The next not void item could be UDP or TCP or SCTP (optional)
1075  * The next not void item could be RAW (for flexbyte, optional)
1076  * The next not void item must be END.
1077  * A Fuzzy Match pattern can appear at any place before END.
1078  * Fuzzy Match is optional for IPV4 but is required for IPV6
1079  * MAC VLAN PATTERN:
1080  * The first not void item must be ETH.
1081  * The second not void item must be MAC VLAN.
1082  * The next not void item must be END.
1083  * ACTION:
1084  * The first not void action should be QUEUE or DROP.
1085  * The second not void optional action should be MARK,
1086  * mark_id is a uint32_t number.
1087  * The next not void action should be END.
1088  * UDP/TCP/SCTP pattern example:
1089  * ITEM         Spec                    Mask
1090  * ETH          NULL                    NULL
1091  * IPV4         src_addr 192.168.1.20   0xFFFFFFFF
1092  *              dst_addr 192.167.3.50   0xFFFFFFFF
1093  * UDP/TCP/SCTP src_port        80      0xFFFF
1094  *              dst_port        80      0xFFFF
1095  * END
1096  * MAC VLAN pattern example:
1097  * ITEM         Spec                    Mask
1098  * ETH          dst_addr
1099                 {0xAC, 0x7B, 0xA1,      {0xFF, 0xFF, 0xFF,
1100                 0x2C, 0x6D, 0x36}       0xFF, 0xFF, 0xFF}
1101  * MAC VLAN     tci     0x2016          0xEFFF
1102  * END
1103  * Other members in mask and spec should set to 0x00.
1104  * Item->last should be NULL.
1105  */
1106 static int
1107 hns3_parse_fdir_filter(struct rte_eth_dev *dev,
1108                        const struct rte_flow_item pattern[],
1109                        const struct rte_flow_action actions[],
1110                        struct hns3_fdir_rule *rule,
1111                        struct rte_flow_error *error)
1112 {
1113         struct hns3_adapter *hns = dev->data->dev_private;
1114         const struct rte_flow_item *item;
1115         struct items_step_mngr step_mngr;
1116         int ret;
1117
1118         /* FDIR is available only in PF driver */
1119         if (hns->is_vf)
1120                 return rte_flow_error_set(error, ENOTSUP,
1121                                           RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1122                                           "Fdir not supported in VF");
1123
1124         if (dev->data->dev_conf.fdir_conf.mode != RTE_FDIR_MODE_PERFECT)
1125                 return rte_flow_error_set(error, ENOTSUP,
1126                                           RTE_FLOW_ERROR_TYPE_ITEM_NUM, NULL,
1127                                           "fdir_conf.mode isn't perfect");
1128
1129         step_mngr.items = first_items;
1130         step_mngr.count = ARRAY_SIZE(first_items);
1131         for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
1132                 if (item->type == RTE_FLOW_ITEM_TYPE_VOID)
1133                         continue;
1134
1135                 ret = hns3_validate_item(item, step_mngr, error);
1136                 if (ret)
1137                         return ret;
1138
1139                 if (is_tunnel_packet(item->type)) {
1140                         ret = hns3_parse_tunnel(item, rule, error);
1141                         if (ret)
1142                                 return ret;
1143                         step_mngr.items = tunnel_next_items;
1144                         step_mngr.count = ARRAY_SIZE(tunnel_next_items);
1145                 } else {
1146                         ret = hns3_parse_normal(item, rule, &step_mngr, error);
1147                         if (ret)
1148                                 return ret;
1149                 }
1150         }
1151
1152         return hns3_handle_actions(dev, actions, rule, error);
1153 }
1154
1155 void
1156 hns3_filterlist_init(struct rte_eth_dev *dev)
1157 {
1158         struct hns3_process_private *process_list = dev->process_private;
1159
1160         TAILQ_INIT(&process_list->fdir_list);
1161         TAILQ_INIT(&process_list->filter_rss_list);
1162         TAILQ_INIT(&process_list->flow_list);
1163 }
1164
1165 static void
1166 hns3_filterlist_flush(struct rte_eth_dev *dev)
1167 {
1168         struct hns3_process_private *process_list = dev->process_private;
1169         struct hns3_fdir_rule_ele *fdir_rule_ptr;
1170         struct hns3_rss_conf_ele *rss_filter_ptr;
1171         struct hns3_flow_mem *flow_node;
1172
1173         fdir_rule_ptr = TAILQ_FIRST(&process_list->fdir_list);
1174         while (fdir_rule_ptr) {
1175                 TAILQ_REMOVE(&process_list->fdir_list, fdir_rule_ptr, entries);
1176                 rte_free(fdir_rule_ptr);
1177                 fdir_rule_ptr = TAILQ_FIRST(&process_list->fdir_list);
1178         }
1179
1180         rss_filter_ptr = TAILQ_FIRST(&process_list->filter_rss_list);
1181         while (rss_filter_ptr) {
1182                 TAILQ_REMOVE(&process_list->filter_rss_list, rss_filter_ptr,
1183                              entries);
1184                 rte_free(rss_filter_ptr);
1185                 rss_filter_ptr = TAILQ_FIRST(&process_list->filter_rss_list);
1186         }
1187
1188         flow_node = TAILQ_FIRST(&process_list->flow_list);
1189         while (flow_node) {
1190                 TAILQ_REMOVE(&process_list->flow_list, flow_node, entries);
1191                 rte_free(flow_node->flow);
1192                 rte_free(flow_node);
1193                 flow_node = TAILQ_FIRST(&process_list->flow_list);
1194         }
1195 }
1196
1197 static bool
1198 hns3_action_rss_same(const struct rte_flow_action_rss *comp,
1199                      const struct rte_flow_action_rss *with)
1200 {
1201         return (comp->func == with->func &&
1202                 comp->level == with->level &&
1203                 comp->types == with->types &&
1204                 comp->key_len == with->key_len &&
1205                 comp->queue_num == with->queue_num &&
1206                 !memcmp(comp->key, with->key, with->key_len) &&
1207                 !memcmp(comp->queue, with->queue,
1208                         sizeof(*with->queue) * with->queue_num));
1209 }
1210
1211 static int
1212 hns3_rss_conf_copy(struct hns3_rss_conf *out,
1213                    const struct rte_flow_action_rss *in)
1214 {
1215         if (in->key_len > RTE_DIM(out->key) ||
1216             in->queue_num > RTE_DIM(out->queue))
1217                 return -EINVAL;
1218         if (in->key == NULL && in->key_len)
1219                 return -EINVAL;
1220         out->conf = (struct rte_flow_action_rss) {
1221                 .func = in->func,
1222                 .level = in->level,
1223                 .types = in->types,
1224                 .key_len = in->key_len,
1225                 .queue_num = in->queue_num,
1226         };
1227         out->conf.queue =
1228                 memcpy(out->queue, in->queue,
1229                        sizeof(*in->queue) * in->queue_num);
1230         if (in->key)
1231                 out->conf.key = memcpy(out->key, in->key, in->key_len);
1232
1233         return 0;
1234 }
1235
1236 /*
1237  * This function is used to parse rss action validatation.
1238  */
1239 static int
1240 hns3_parse_rss_filter(struct rte_eth_dev *dev,
1241                       const struct rte_flow_action *actions,
1242                       struct rte_flow_error *error)
1243 {
1244         struct hns3_adapter *hns = dev->data->dev_private;
1245         struct hns3_hw *hw = &hns->hw;
1246         struct hns3_rss_conf *rss_conf = &hw->rss_info;
1247         const struct rte_flow_action_rss *rss;
1248         const struct rte_flow_action *act;
1249         uint32_t act_index = 0;
1250         uint64_t flow_types;
1251         uint16_t n;
1252
1253         NEXT_ITEM_OF_ACTION(act, actions, act_index);
1254         /* Get configuration args from APP cmdline input */
1255         rss = act->conf;
1256
1257         if (rss == NULL || rss->queue_num == 0) {
1258                 return rte_flow_error_set(error, EINVAL,
1259                                           RTE_FLOW_ERROR_TYPE_ACTION,
1260                                           act, "no valid queues");
1261         }
1262
1263         for (n = 0; n < rss->queue_num; n++) {
1264                 if (rss->queue[n] < dev->data->nb_rx_queues)
1265                         continue;
1266                 return rte_flow_error_set(error, EINVAL,
1267                                           RTE_FLOW_ERROR_TYPE_ACTION,
1268                                           act,
1269                                           "queue id > max number of queues");
1270         }
1271
1272         /* Parse flow types of RSS */
1273         if (!(rss->types & HNS3_ETH_RSS_SUPPORT) && rss->types)
1274                 return rte_flow_error_set(error, EINVAL,
1275                                           RTE_FLOW_ERROR_TYPE_ACTION,
1276                                           act,
1277                                           "Flow types is unsupported by "
1278                                           "hns3's RSS");
1279
1280         flow_types = rss->types & HNS3_ETH_RSS_SUPPORT;
1281         if (flow_types != rss->types)
1282                 hns3_warn(hw, "RSS flow types(%" PRIx64 ") include unsupported "
1283                           "flow types", rss->types);
1284
1285         /* Parse RSS related parameters from RSS configuration */
1286         switch (rss->func) {
1287         case RTE_ETH_HASH_FUNCTION_DEFAULT:
1288         case RTE_ETH_HASH_FUNCTION_TOEPLITZ:
1289         case RTE_ETH_HASH_FUNCTION_SIMPLE_XOR:
1290                 break;
1291         default:
1292                 return rte_flow_error_set(error, ENOTSUP,
1293                                           RTE_FLOW_ERROR_TYPE_ACTION, act,
1294                                           "input RSS hash functions are not supported");
1295         }
1296
1297         if (rss->level)
1298                 return rte_flow_error_set(error, ENOTSUP,
1299                                           RTE_FLOW_ERROR_TYPE_ACTION, act,
1300                                           "a nonzero RSS encapsulation level is not supported");
1301         if (rss->key_len && rss->key_len != RTE_DIM(rss_conf->key))
1302                 return rte_flow_error_set(error, ENOTSUP,
1303                                           RTE_FLOW_ERROR_TYPE_ACTION, act,
1304                                           "RSS hash key must be exactly 40 bytes");
1305         if (rss->queue_num > RTE_DIM(rss_conf->queue))
1306                 return rte_flow_error_set(error, ENOTSUP,
1307                                           RTE_FLOW_ERROR_TYPE_ACTION, act,
1308                                           "too many queues for RSS context");
1309
1310         act_index++;
1311
1312         /* Check if the next not void action is END */
1313         NEXT_ITEM_OF_ACTION(act, actions, act_index);
1314         if (act->type != RTE_FLOW_ACTION_TYPE_END) {
1315                 memset(rss_conf, 0, sizeof(struct hns3_rss_conf));
1316                 return rte_flow_error_set(error, EINVAL,
1317                                           RTE_FLOW_ERROR_TYPE_ACTION,
1318                                           act, "Not supported action.");
1319         }
1320
1321         return 0;
1322 }
1323
1324 static int
1325 hns3_disable_rss(struct hns3_hw *hw)
1326 {
1327         int ret;
1328
1329         /* Redirected the redirection table to queue 0 */
1330         ret = hns3_rss_reset_indir_table(hw);
1331         if (ret)
1332                 return ret;
1333
1334         /* Disable RSS */
1335         hw->rss_info.conf.types = 0;
1336         hw->rss_dis_flag = true;
1337
1338         return 0;
1339 }
1340
1341 static void
1342 hns3_parse_rss_key(struct hns3_hw *hw, struct rte_flow_action_rss *rss_conf)
1343 {
1344         if (rss_conf->key == NULL ||
1345             rss_conf->key_len < HNS3_RSS_KEY_SIZE) {
1346                 hns3_info(hw, "Default RSS hash key to be set");
1347                 rss_conf->key = hns3_hash_key;
1348                 rss_conf->key_len = HNS3_RSS_KEY_SIZE;
1349         }
1350 }
1351
1352 static int
1353 hns3_parse_rss_algorithm(struct hns3_hw *hw, enum rte_eth_hash_function *func,
1354                          uint8_t *hash_algo)
1355 {
1356         enum rte_eth_hash_function algo_func = *func;
1357         switch (algo_func) {
1358         case RTE_ETH_HASH_FUNCTION_DEFAULT:
1359                 /* Keep *hash_algo as what it used to be */
1360                 algo_func = hw->rss_info.conf.func;
1361                 break;
1362         case RTE_ETH_HASH_FUNCTION_TOEPLITZ:
1363                 *hash_algo = HNS3_RSS_HASH_ALGO_TOEPLITZ;
1364                 break;
1365         case RTE_ETH_HASH_FUNCTION_SIMPLE_XOR:
1366                 *hash_algo = HNS3_RSS_HASH_ALGO_SIMPLE;
1367                 break;
1368         default:
1369                 hns3_err(hw, "Invalid RSS algorithm configuration(%u)",
1370                          algo_func);
1371                 return -EINVAL;
1372         }
1373         *func = algo_func;
1374
1375         return 0;
1376 }
1377
1378 static int
1379 hns3_hw_rss_hash_set(struct hns3_hw *hw, struct rte_flow_action_rss *rss_config)
1380 {
1381         uint8_t hash_algo =
1382                 (hw->rss_info.conf.func == RTE_ETH_HASH_FUNCTION_TOEPLITZ ?
1383                  HNS3_RSS_HASH_ALGO_TOEPLITZ : HNS3_RSS_HASH_ALGO_SIMPLE);
1384         struct hns3_rss_tuple_cfg *tuple;
1385         int ret;
1386
1387         /* Parse hash key */
1388         hns3_parse_rss_key(hw, rss_config);
1389
1390         /* Parse hash algorithm */
1391         ret = hns3_parse_rss_algorithm(hw, &rss_config->func, &hash_algo);
1392         if (ret)
1393                 return ret;
1394
1395         ret = hns3_set_rss_algo_key(hw, hash_algo, rss_config->key);
1396         if (ret)
1397                 return ret;
1398
1399         /* Update algorithm of hw */
1400         hw->rss_info.conf.func = rss_config->func;
1401
1402         /* Set flow type supported */
1403         tuple = &hw->rss_info.rss_tuple_sets;
1404         ret = hns3_set_rss_tuple_by_rss_hf(hw, tuple, rss_config->types);
1405         if (ret)
1406                 hns3_err(hw, "Update RSS tuples by rss hf failed %d", ret);
1407
1408         return ret;
1409 }
1410
1411 static int
1412 hns3_update_indir_table(struct rte_eth_dev *dev,
1413                         const struct rte_flow_action_rss *conf, uint16_t num)
1414 {
1415         struct hns3_adapter *hns = dev->data->dev_private;
1416         struct hns3_hw *hw = &hns->hw;
1417         uint8_t indir_tbl[HNS3_RSS_IND_TBL_SIZE];
1418         uint16_t j, allow_rss_queues;
1419         uint8_t queue_id;
1420         uint32_t i;
1421
1422         if (num == 0) {
1423                 hns3_err(hw, "No PF queues are configured to enable RSS");
1424                 return -ENOTSUP;
1425         }
1426
1427         allow_rss_queues = RTE_MIN(dev->data->nb_rx_queues, hw->rss_size_max);
1428         /* Fill in redirection table */
1429         memcpy(indir_tbl, hw->rss_info.rss_indirection_tbl,
1430                HNS3_RSS_IND_TBL_SIZE);
1431         for (i = 0, j = 0; i < HNS3_RSS_IND_TBL_SIZE; i++, j++) {
1432                 j %= num;
1433                 if (conf->queue[j] >= allow_rss_queues) {
1434                         hns3_err(hw, "Invalid queue id(%u) to be set in "
1435                                      "redirection table, max number of rss "
1436                                      "queues: %u", conf->queue[j],
1437                                  allow_rss_queues);
1438                         return -EINVAL;
1439                 }
1440                 queue_id = conf->queue[j];
1441                 indir_tbl[i] = queue_id;
1442         }
1443
1444         return hns3_set_rss_indir_table(hw, indir_tbl, HNS3_RSS_IND_TBL_SIZE);
1445 }
1446
1447 static int
1448 hns3_config_rss_filter(struct rte_eth_dev *dev,
1449                        const struct hns3_rss_conf *conf, bool add)
1450 {
1451         struct hns3_adapter *hns = dev->data->dev_private;
1452         struct hns3_hw *hw = &hns->hw;
1453         struct hns3_rss_conf *rss_info;
1454         uint64_t flow_types;
1455         uint16_t num;
1456         int ret;
1457
1458         struct rte_flow_action_rss rss_flow_conf = {
1459                 .func = conf->conf.func,
1460                 .level = conf->conf.level,
1461                 .types = conf->conf.types,
1462                 .key_len = conf->conf.key_len,
1463                 .queue_num = conf->conf.queue_num,
1464                 .key = conf->conf.key_len ?
1465                     (void *)(uintptr_t)conf->conf.key : NULL,
1466                 .queue = conf->conf.queue,
1467         };
1468
1469         /* The types is Unsupported by hns3' RSS */
1470         if (!(rss_flow_conf.types & HNS3_ETH_RSS_SUPPORT) &&
1471             rss_flow_conf.types) {
1472                 hns3_err(hw,
1473                          "Flow types(%" PRIx64 ") is unsupported by hns3's RSS",
1474                          rss_flow_conf.types);
1475                 return -EINVAL;
1476         }
1477
1478         if (rss_flow_conf.key_len &&
1479             rss_flow_conf.key_len > RTE_DIM(rss_info->key)) {
1480                 hns3_err(hw,
1481                         "input hash key(%u) greater than supported len(%zu)",
1482                         rss_flow_conf.key_len, RTE_DIM(rss_info->key));
1483                 return -EINVAL;
1484         }
1485
1486         /* Filter the unsupported flow types */
1487         flow_types = rss_flow_conf.types & HNS3_ETH_RSS_SUPPORT;
1488         if (flow_types != rss_flow_conf.types)
1489                 hns3_warn(hw, "modified RSS types based on hardware support, "
1490                               "requested:%" PRIx64 " configured:%" PRIx64,
1491                           rss_flow_conf.types, flow_types);
1492         /* Update the useful flow types */
1493         rss_flow_conf.types = flow_types;
1494
1495         if ((rss_flow_conf.types & ETH_RSS_PROTO_MASK) == 0)
1496                 return hns3_disable_rss(hw);
1497
1498         rss_info = &hw->rss_info;
1499         if (!add) {
1500                 if (hns3_action_rss_same(&rss_info->conf, &rss_flow_conf)) {
1501                         ret = hns3_disable_rss(hw);
1502                         if (ret) {
1503                                 hns3_err(hw, "RSS disable failed(%d)", ret);
1504                                 return ret;
1505                         }
1506                         memset(rss_info, 0, sizeof(struct hns3_rss_conf));
1507                         return 0;
1508                 }
1509                 return -EINVAL;
1510         }
1511
1512         /* Get rx queues num */
1513         num = dev->data->nb_rx_queues;
1514
1515         /* Set rx queues to use */
1516         num = RTE_MIN(num, rss_flow_conf.queue_num);
1517         if (rss_flow_conf.queue_num > num)
1518                 hns3_warn(hw, "Config queue numbers %u are beyond the scope of truncated",
1519                           rss_flow_conf.queue_num);
1520         hns3_info(hw, "Max of contiguous %u PF queues are configured", num);
1521
1522         rte_spinlock_lock(&hw->lock);
1523         /* Update redirection talbe of rss */
1524         ret = hns3_update_indir_table(dev, &rss_flow_conf, num);
1525         if (ret)
1526                 goto rss_config_err;
1527
1528         /* Set hash algorithm and flow types by the user's config */
1529         ret = hns3_hw_rss_hash_set(hw, &rss_flow_conf);
1530         if (ret)
1531                 goto rss_config_err;
1532
1533         ret = hns3_rss_conf_copy(rss_info, &rss_flow_conf);
1534         if (ret) {
1535                 hns3_err(hw, "RSS config init fail(%d)", ret);
1536                 goto rss_config_err;
1537         }
1538
1539 rss_config_err:
1540         rte_spinlock_unlock(&hw->lock);
1541
1542         return ret;
1543 }
1544
1545 /* Remove the rss filter */
1546 static int
1547 hns3_clear_rss_filter(struct rte_eth_dev *dev)
1548 {
1549         struct hns3_adapter *hns = dev->data->dev_private;
1550         struct hns3_hw *hw = &hns->hw;
1551
1552         if (hw->rss_info.conf.queue_num == 0)
1553                 return 0;
1554
1555         return hns3_config_rss_filter(dev, &hw->rss_info, false);
1556 }
1557
1558 /* Restore the rss filter */
1559 int
1560 hns3_restore_rss_filter(struct rte_eth_dev *dev)
1561 {
1562         struct hns3_adapter *hns = dev->data->dev_private;
1563         struct hns3_hw *hw = &hns->hw;
1564
1565         if (hw->rss_info.conf.queue_num == 0)
1566                 return 0;
1567
1568         return hns3_config_rss_filter(dev, &hw->rss_info, true);
1569 }
1570
1571 static int
1572 hns3_flow_parse_rss(struct rte_eth_dev *dev,
1573                     const struct hns3_rss_conf *conf, bool add)
1574 {
1575         struct hns3_adapter *hns = dev->data->dev_private;
1576         struct hns3_hw *hw = &hns->hw;
1577         bool ret;
1578
1579         /* Action rss same */
1580         ret = hns3_action_rss_same(&hw->rss_info.conf, &conf->conf);
1581         if (ret) {
1582                 hns3_err(hw, "Enter duplicate RSS configuration : %d", ret);
1583                 return -EINVAL;
1584         }
1585
1586         return hns3_config_rss_filter(dev, conf, add);
1587 }
1588
1589 static int
1590 hns3_flow_args_check(const struct rte_flow_attr *attr,
1591                      const struct rte_flow_item pattern[],
1592                      const struct rte_flow_action actions[],
1593                      struct rte_flow_error *error)
1594 {
1595         if (pattern == NULL)
1596                 return rte_flow_error_set(error, EINVAL,
1597                                           RTE_FLOW_ERROR_TYPE_ITEM_NUM,
1598                                           NULL, "NULL pattern.");
1599
1600         if (actions == NULL)
1601                 return rte_flow_error_set(error, EINVAL,
1602                                           RTE_FLOW_ERROR_TYPE_ACTION_NUM,
1603                                           NULL, "NULL action.");
1604
1605         if (attr == NULL)
1606                 return rte_flow_error_set(error, EINVAL,
1607                                           RTE_FLOW_ERROR_TYPE_ATTR,
1608                                           NULL, "NULL attribute.");
1609
1610         return hns3_check_attr(attr, error);
1611 }
1612
1613 /*
1614  * Check if the flow rule is supported by hns3.
1615  * It only checkes the format. Don't guarantee the rule can be programmed into
1616  * the HW. Because there can be no enough room for the rule.
1617  */
1618 static int
1619 hns3_flow_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
1620                    const struct rte_flow_item pattern[],
1621                    const struct rte_flow_action actions[],
1622                    struct rte_flow_error *error)
1623 {
1624         struct hns3_fdir_rule fdir_rule;
1625         int ret;
1626
1627         ret = hns3_flow_args_check(attr, pattern, actions, error);
1628         if (ret)
1629                 return ret;
1630
1631         if (find_rss_action(actions))
1632                 return hns3_parse_rss_filter(dev, actions, error);
1633
1634         memset(&fdir_rule, 0, sizeof(struct hns3_fdir_rule));
1635         return hns3_parse_fdir_filter(dev, pattern, actions, &fdir_rule, error);
1636 }
1637
1638 /*
1639  * Create or destroy a flow rule.
1640  * Theorically one rule can match more than one filters.
1641  * We will let it use the filter which it hitt first.
1642  * So, the sequence matters.
1643  */
1644 static struct rte_flow *
1645 hns3_flow_create(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
1646                  const struct rte_flow_item pattern[],
1647                  const struct rte_flow_action actions[],
1648                  struct rte_flow_error *error)
1649 {
1650         struct hns3_process_private *process_list = dev->process_private;
1651         struct hns3_adapter *hns = dev->data->dev_private;
1652         struct hns3_hw *hw = &hns->hw;
1653         const struct hns3_rss_conf *rss_conf;
1654         struct hns3_fdir_rule_ele *fdir_rule_ptr;
1655         struct hns3_rss_conf_ele *rss_filter_ptr;
1656         struct hns3_flow_mem *flow_node;
1657         const struct rte_flow_action *act;
1658         struct rte_flow *flow;
1659         struct hns3_fdir_rule fdir_rule;
1660         int ret;
1661
1662         ret = hns3_flow_args_check(attr, pattern, actions, error);
1663         if (ret)
1664                 return NULL;
1665
1666         flow = rte_zmalloc("hns3 flow", sizeof(struct rte_flow), 0);
1667         if (flow == NULL) {
1668                 rte_flow_error_set(error, ENOMEM,
1669                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1670                                    "Failed to allocate flow memory");
1671                 return NULL;
1672         }
1673         flow_node = rte_zmalloc("hns3 flow node",
1674                                 sizeof(struct hns3_flow_mem), 0);
1675         if (flow_node == NULL) {
1676                 rte_flow_error_set(error, ENOMEM,
1677                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1678                                    "Failed to allocate flow list memory");
1679                 rte_free(flow);
1680                 return NULL;
1681         }
1682
1683         flow_node->flow = flow;
1684         TAILQ_INSERT_TAIL(&process_list->flow_list, flow_node, entries);
1685
1686         act = find_rss_action(actions);
1687         if (act) {
1688                 rss_conf = act->conf;
1689
1690                 ret = hns3_flow_parse_rss(dev, rss_conf, true);
1691                 if (ret)
1692                         goto err;
1693
1694                 rss_filter_ptr = rte_zmalloc("hns3 rss filter",
1695                                              sizeof(struct hns3_rss_conf_ele),
1696                                              0);
1697                 if (rss_filter_ptr == NULL) {
1698                         hns3_err(hw,
1699                                     "Failed to allocate hns3_rss_filter memory");
1700                         ret = -ENOMEM;
1701                         goto err;
1702                 }
1703                 memcpy(&rss_filter_ptr->filter_info, rss_conf,
1704                         sizeof(struct hns3_rss_conf));
1705                 TAILQ_INSERT_TAIL(&process_list->filter_rss_list,
1706                                   rss_filter_ptr, entries);
1707
1708                 flow->rule = rss_filter_ptr;
1709                 flow->filter_type = RTE_ETH_FILTER_HASH;
1710                 return flow;
1711         }
1712
1713         memset(&fdir_rule, 0, sizeof(struct hns3_fdir_rule));
1714         ret = hns3_parse_fdir_filter(dev, pattern, actions, &fdir_rule, error);
1715         if (ret)
1716                 goto out;
1717
1718         if (fdir_rule.flags & HNS3_RULE_FLAG_COUNTER) {
1719                 ret = hns3_counter_new(dev, fdir_rule.act_cnt.shared,
1720                                        fdir_rule.act_cnt.id, error);
1721                 if (ret)
1722                         goto out;
1723
1724                 flow->counter_id = fdir_rule.act_cnt.id;
1725         }
1726         ret = hns3_fdir_filter_program(hns, &fdir_rule, false);
1727         if (!ret) {
1728                 fdir_rule_ptr = rte_zmalloc("hns3 fdir rule",
1729                                             sizeof(struct hns3_fdir_rule_ele),
1730                                             0);
1731                 if (fdir_rule_ptr == NULL) {
1732                         hns3_err(hw, "Failed to allocate fdir_rule memory");
1733                         ret = -ENOMEM;
1734                         goto err_fdir;
1735                 }
1736                 memcpy(&fdir_rule_ptr->fdir_conf, &fdir_rule,
1737                         sizeof(struct hns3_fdir_rule));
1738                 TAILQ_INSERT_TAIL(&process_list->fdir_list,
1739                                   fdir_rule_ptr, entries);
1740                 flow->rule = fdir_rule_ptr;
1741                 flow->filter_type = RTE_ETH_FILTER_FDIR;
1742
1743                 return flow;
1744         }
1745
1746 err_fdir:
1747         if (fdir_rule.flags & HNS3_RULE_FLAG_COUNTER)
1748                 hns3_counter_release(dev, fdir_rule.act_cnt.id);
1749
1750 err:
1751         rte_flow_error_set(error, -ret, RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1752                            "Failed to create flow");
1753 out:
1754         TAILQ_REMOVE(&process_list->flow_list, flow_node, entries);
1755         rte_free(flow_node);
1756         rte_free(flow);
1757         return NULL;
1758 }
1759
1760 /* Destroy a flow rule on hns3. */
1761 static int
1762 hns3_flow_destroy(struct rte_eth_dev *dev, struct rte_flow *flow,
1763                   struct rte_flow_error *error)
1764 {
1765         struct hns3_process_private *process_list = dev->process_private;
1766         struct hns3_adapter *hns = dev->data->dev_private;
1767         struct hns3_fdir_rule_ele *fdir_rule_ptr;
1768         struct hns3_rss_conf_ele *rss_filter_ptr;
1769         struct hns3_flow_mem *flow_node;
1770         struct hns3_hw *hw = &hns->hw;
1771         enum rte_filter_type filter_type;
1772         struct hns3_fdir_rule fdir_rule;
1773         int ret;
1774
1775         if (flow == NULL)
1776                 return rte_flow_error_set(error, EINVAL,
1777                                           RTE_FLOW_ERROR_TYPE_HANDLE,
1778                                           flow, "Flow is NULL");
1779         filter_type = flow->filter_type;
1780         switch (filter_type) {
1781         case RTE_ETH_FILTER_FDIR:
1782                 fdir_rule_ptr = (struct hns3_fdir_rule_ele *)flow->rule;
1783                 memcpy(&fdir_rule, &fdir_rule_ptr->fdir_conf,
1784                            sizeof(struct hns3_fdir_rule));
1785
1786                 ret = hns3_fdir_filter_program(hns, &fdir_rule, true);
1787                 if (ret)
1788                         return rte_flow_error_set(error, EIO,
1789                                                   RTE_FLOW_ERROR_TYPE_HANDLE,
1790                                                   flow,
1791                                                   "Destroy FDIR fail.Try again");
1792                 if (fdir_rule.flags & HNS3_RULE_FLAG_COUNTER)
1793                         hns3_counter_release(dev, fdir_rule.act_cnt.id);
1794                 TAILQ_REMOVE(&process_list->fdir_list, fdir_rule_ptr, entries);
1795                 rte_free(fdir_rule_ptr);
1796                 fdir_rule_ptr = NULL;
1797                 break;
1798         case RTE_ETH_FILTER_HASH:
1799                 rss_filter_ptr = (struct hns3_rss_conf_ele *)flow->rule;
1800                 ret = hns3_config_rss_filter(dev, &hw->rss_info, false);
1801                 if (ret)
1802                         return rte_flow_error_set(error, EIO,
1803                                                   RTE_FLOW_ERROR_TYPE_HANDLE,
1804                                                   flow,
1805                                                   "Destroy RSS fail.Try again");
1806                 TAILQ_REMOVE(&process_list->filter_rss_list, rss_filter_ptr,
1807                              entries);
1808                 rte_free(rss_filter_ptr);
1809                 rss_filter_ptr = NULL;
1810                 break;
1811         default:
1812                 return rte_flow_error_set(error, EINVAL,
1813                                           RTE_FLOW_ERROR_TYPE_HANDLE, flow,
1814                                           "Unsupported filter type");
1815         }
1816
1817         TAILQ_FOREACH(flow_node, &process_list->flow_list, entries) {
1818                 if (flow_node->flow == flow) {
1819                         TAILQ_REMOVE(&process_list->flow_list, flow_node,
1820                                      entries);
1821                         rte_free(flow_node);
1822                         flow_node = NULL;
1823                         break;
1824                 }
1825         }
1826         rte_free(flow);
1827         flow = NULL;
1828
1829         return 0;
1830 }
1831
1832 /*  Destroy all flow rules associated with a port on hns3. */
1833 static int
1834 hns3_flow_flush(struct rte_eth_dev *dev, struct rte_flow_error *error)
1835 {
1836         struct hns3_adapter *hns = dev->data->dev_private;
1837         int ret;
1838
1839         /* FDIR is available only in PF driver */
1840         if (!hns->is_vf) {
1841                 ret = hns3_clear_all_fdir_filter(hns);
1842                 if (ret) {
1843                         rte_flow_error_set(error, ret,
1844                                            RTE_FLOW_ERROR_TYPE_HANDLE,
1845                                            NULL, "Failed to flush rule");
1846                         return ret;
1847                 }
1848                 hns3_counter_flush(dev);
1849         }
1850
1851         ret = hns3_clear_rss_filter(dev);
1852         if (ret) {
1853                 rte_flow_error_set(error, ret, RTE_FLOW_ERROR_TYPE_HANDLE,
1854                                    NULL, "Failed to flush rss filter");
1855                 return ret;
1856         }
1857
1858         hns3_filterlist_flush(dev);
1859
1860         return 0;
1861 }
1862
1863 /* Query an existing flow rule. */
1864 static int
1865 hns3_flow_query(struct rte_eth_dev *dev, struct rte_flow *flow,
1866                 const struct rte_flow_action *actions, void *data,
1867                 struct rte_flow_error *error)
1868 {
1869         struct rte_flow_query_count *qc;
1870         int ret;
1871
1872         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
1873                 switch (actions->type) {
1874                 case RTE_FLOW_ACTION_TYPE_VOID:
1875                         break;
1876                 case RTE_FLOW_ACTION_TYPE_COUNT:
1877                         qc = (struct rte_flow_query_count *)data;
1878                         ret = hns3_counter_query(dev, flow, qc, error);
1879                         if (ret)
1880                                 return ret;
1881                         break;
1882                 default:
1883                         return rte_flow_error_set(error, ENOTSUP,
1884                                                   RTE_FLOW_ERROR_TYPE_ACTION,
1885                                                   actions,
1886                                                   "Query action only support count");
1887                 }
1888         }
1889         return 0;
1890 }
1891
1892 static const struct rte_flow_ops hns3_flow_ops = {
1893         .validate = hns3_flow_validate,
1894         .create = hns3_flow_create,
1895         .destroy = hns3_flow_destroy,
1896         .flush = hns3_flow_flush,
1897         .query = hns3_flow_query,
1898         .isolate = NULL,
1899 };
1900
1901 /*
1902  * The entry of flow API.
1903  * @param dev
1904  *   Pointer to Ethernet device.
1905  * @return
1906  *   0 on success, a negative errno value otherwise is set.
1907  */
1908 int
1909 hns3_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
1910                      enum rte_filter_op filter_op, void *arg)
1911 {
1912         struct hns3_hw *hw;
1913         int ret = 0;
1914
1915         hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1916         switch (filter_type) {
1917         case RTE_ETH_FILTER_GENERIC:
1918                 if (filter_op != RTE_ETH_FILTER_GET)
1919                         return -EINVAL;
1920                 if (hw->adapter_state >= HNS3_NIC_CLOSED)
1921                         return -ENODEV;
1922                 *(const void **)arg = &hns3_flow_ops;
1923                 break;
1924         default:
1925                 hns3_err(hw, "Filter type (%d) not supported", filter_type);
1926                 ret = -EOPNOTSUPP;
1927                 break;
1928         }
1929
1930         return ret;
1931 }