1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2014-2018 Broadcom
3 * All rights reserved.
4 */
5
6 #include <sys/queue.h>
7
8 #include <rte_log.h>
9 #include <rte_malloc.h>
10 #include <rte_flow.h>
11 #include <rte_flow_driver.h>
12 #include <rte_tailq.h>
13 #include <rte_alarm.h>
14 #include <rte_cycles.h>
15
16 #include "bnxt.h"
17 #include "bnxt_filter.h"
18 #include "bnxt_hwrm.h"
19 #include "bnxt_ring.h"
20 #include "bnxt_rxq.h"
21 #include "bnxt_rxr.h"
22 #include "bnxt_vnic.h"
23 #include "hsi_struct_def_dpdk.h"
24
25 static int
bnxt_flow_args_validate(const struct rte_flow_attr * attr,const struct rte_flow_item pattern[],const struct rte_flow_action actions[],struct rte_flow_error * error)26 bnxt_flow_args_validate(const struct rte_flow_attr *attr,
27 const struct rte_flow_item pattern[],
28 const struct rte_flow_action actions[],
29 struct rte_flow_error *error)
30 {
31 if (!pattern) {
32 rte_flow_error_set(error,
33 EINVAL,
34 RTE_FLOW_ERROR_TYPE_ITEM_NUM,
35 NULL,
36 "NULL pattern.");
37 return -rte_errno;
38 }
39
40 if (!actions) {
41 rte_flow_error_set(error,
42 EINVAL,
43 RTE_FLOW_ERROR_TYPE_ACTION_NUM,
44 NULL,
45 "NULL action.");
46 return -rte_errno;
47 }
48
49 if (!attr) {
50 rte_flow_error_set(error,
51 EINVAL,
52 RTE_FLOW_ERROR_TYPE_ATTR,
53 NULL,
54 "NULL attribute.");
55 return -rte_errno;
56 }
57
58 return 0;
59 }
60
61 static const struct rte_flow_item *
bnxt_flow_non_void_item(const struct rte_flow_item * cur)62 bnxt_flow_non_void_item(const struct rte_flow_item *cur)
63 {
64 while (1) {
65 if (cur->type != RTE_FLOW_ITEM_TYPE_VOID)
66 return cur;
67 cur++;
68 }
69 }
70
71 static const struct rte_flow_action *
bnxt_flow_non_void_action(const struct rte_flow_action * cur)72 bnxt_flow_non_void_action(const struct rte_flow_action *cur)
73 {
74 while (1) {
75 if (cur->type != RTE_FLOW_ACTION_TYPE_VOID)
76 return cur;
77 cur++;
78 }
79 }
80
81 static int
bnxt_filter_type_check(const struct rte_flow_item pattern[],struct rte_flow_error * error)82 bnxt_filter_type_check(const struct rte_flow_item pattern[],
83 struct rte_flow_error *error)
84 {
85 const struct rte_flow_item *item =
86 bnxt_flow_non_void_item(pattern);
87 int use_ntuple = 1;
88 bool has_vlan = 0;
89
90 while (item->type != RTE_FLOW_ITEM_TYPE_END) {
91 switch (item->type) {
92 case RTE_FLOW_ITEM_TYPE_ANY:
93 case RTE_FLOW_ITEM_TYPE_ETH:
94 use_ntuple = 0;
95 break;
96 case RTE_FLOW_ITEM_TYPE_VLAN:
97 use_ntuple = 0;
98 has_vlan = 1;
99 break;
100 case RTE_FLOW_ITEM_TYPE_IPV4:
101 case RTE_FLOW_ITEM_TYPE_IPV6:
102 case RTE_FLOW_ITEM_TYPE_TCP:
103 case RTE_FLOW_ITEM_TYPE_UDP:
104 /* FALLTHROUGH */
105 /* need ntuple match, reset exact match */
106 use_ntuple |= 1;
107 break;
108 default:
109 PMD_DRV_LOG(DEBUG, "Unknown Flow type\n");
110 use_ntuple |= 0;
111 }
112 item++;
113 }
114
115 if (has_vlan && use_ntuple) {
116 PMD_DRV_LOG(ERR,
117 "VLAN flow cannot use NTUPLE filter\n");
118 rte_flow_error_set(error, EINVAL,
119 RTE_FLOW_ERROR_TYPE_ITEM,
120 item,
121 "Cannot use VLAN with NTUPLE");
122 return -rte_errno;
123 }
124
125 return use_ntuple;
126 }
127
128 static int
bnxt_validate_and_parse_flow_type(struct bnxt * bp,const struct rte_flow_attr * attr,const struct rte_flow_item pattern[],struct rte_flow_error * error,struct bnxt_filter_info * filter)129 bnxt_validate_and_parse_flow_type(struct bnxt *bp,
130 const struct rte_flow_attr *attr,
131 const struct rte_flow_item pattern[],
132 struct rte_flow_error *error,
133 struct bnxt_filter_info *filter)
134 {
135 const struct rte_flow_item *item = bnxt_flow_non_void_item(pattern);
136 const struct rte_flow_item_vlan *vlan_spec, *vlan_mask;
137 const struct rte_flow_item_ipv4 *ipv4_spec, *ipv4_mask;
138 const struct rte_flow_item_ipv6 *ipv6_spec, *ipv6_mask;
139 const struct rte_flow_item_tcp *tcp_spec, *tcp_mask;
140 const struct rte_flow_item_udp *udp_spec, *udp_mask;
141 const struct rte_flow_item_eth *eth_spec, *eth_mask;
142 const struct rte_ether_addr *dst, *src;
143 const struct rte_flow_item_nvgre *nvgre_spec;
144 const struct rte_flow_item_nvgre *nvgre_mask;
145 const struct rte_flow_item_gre *gre_spec;
146 const struct rte_flow_item_gre *gre_mask;
147 const struct rte_flow_item_vxlan *vxlan_spec;
148 const struct rte_flow_item_vxlan *vxlan_mask;
149 uint8_t vni_mask[] = {0xFF, 0xFF, 0xFF};
150 uint8_t tni_mask[] = {0xFF, 0xFF, 0xFF};
151 const struct rte_flow_item_vf *vf_spec;
152 uint32_t tenant_id_be = 0, valid_flags = 0;
153 bool vni_masked = 0;
154 bool tni_masked = 0;
155 uint32_t en_ethertype;
156 uint8_t inner = 0;
157 uint32_t vf = 0;
158 uint32_t en = 0;
159 int use_ntuple;
160 int dflt_vnic;
161
162 use_ntuple = bnxt_filter_type_check(pattern, error);
163 if (use_ntuple < 0)
164 return use_ntuple;
165 PMD_DRV_LOG(DEBUG, "Use NTUPLE %d\n", use_ntuple);
166
167 filter->filter_type = use_ntuple ?
168 HWRM_CFA_NTUPLE_FILTER : HWRM_CFA_L2_FILTER;
169 en_ethertype = use_ntuple ?
170 NTUPLE_FLTR_ALLOC_INPUT_EN_ETHERTYPE :
171 EM_FLOW_ALLOC_INPUT_EN_ETHERTYPE;
172
173 while (item->type != RTE_FLOW_ITEM_TYPE_END) {
174 if (item->last) {
175 /* last or range is NOT supported as match criteria */
176 rte_flow_error_set(error, EINVAL,
177 RTE_FLOW_ERROR_TYPE_ITEM,
178 item,
179 "No support for range");
180 return -rte_errno;
181 }
182
183 switch (item->type) {
184 case RTE_FLOW_ITEM_TYPE_ANY:
185 inner =
186 ((const struct rte_flow_item_any *)item->spec)->num > 3;
187 if (inner)
188 PMD_DRV_LOG(DEBUG, "Parse inner header\n");
189 break;
190 case RTE_FLOW_ITEM_TYPE_ETH:
191 if (!item->spec || !item->mask)
192 break;
193
194 eth_spec = item->spec;
195 eth_mask = item->mask;
196
197 /* Source MAC address mask cannot be partially set.
198 * Should be All 0's or all 1's.
199 * Destination MAC address mask must not be partially
200 * set. Should be all 1's or all 0's.
201 */
202 if ((!rte_is_zero_ether_addr(ð_mask->src) &&
203 !rte_is_broadcast_ether_addr(ð_mask->src)) ||
204 (!rte_is_zero_ether_addr(ð_mask->dst) &&
205 !rte_is_broadcast_ether_addr(ð_mask->dst))) {
206 rte_flow_error_set(error,
207 EINVAL,
208 RTE_FLOW_ERROR_TYPE_ITEM,
209 item,
210 "MAC_addr mask not valid");
211 return -rte_errno;
212 }
213
214 /* Mask is not allowed. Only exact matches are */
215 if (eth_mask->type &&
216 eth_mask->type != RTE_BE16(0xffff)) {
217 rte_flow_error_set(error, EINVAL,
218 RTE_FLOW_ERROR_TYPE_ITEM,
219 item,
220 "ethertype mask not valid");
221 return -rte_errno;
222 }
223
224 if (rte_is_broadcast_ether_addr(ð_mask->dst)) {
225 dst = ð_spec->dst;
226 if (!rte_is_valid_assigned_ether_addr(dst)) {
227 rte_flow_error_set(error,
228 EINVAL,
229 RTE_FLOW_ERROR_TYPE_ITEM,
230 item,
231 "DMAC is invalid");
232 PMD_DRV_LOG(ERR,
233 "DMAC is invalid!\n");
234 return -rte_errno;
235 }
236 rte_memcpy(filter->dst_macaddr,
237 ð_spec->dst, RTE_ETHER_ADDR_LEN);
238 en |= use_ntuple ?
239 NTUPLE_FLTR_ALLOC_INPUT_EN_DST_MACADDR :
240 EM_FLOW_ALLOC_INPUT_EN_DST_MACADDR;
241 valid_flags |= inner ?
242 BNXT_FLOW_L2_INNER_DST_VALID_FLAG :
243 BNXT_FLOW_L2_DST_VALID_FLAG;
244 filter->priority = attr->priority;
245 PMD_DRV_LOG(DEBUG,
246 "Creating a priority flow\n");
247 }
248 if (rte_is_broadcast_ether_addr(ð_mask->src)) {
249 src = ð_spec->src;
250 if (!rte_is_valid_assigned_ether_addr(src)) {
251 rte_flow_error_set(error,
252 EINVAL,
253 RTE_FLOW_ERROR_TYPE_ITEM,
254 item,
255 "SMAC is invalid");
256 PMD_DRV_LOG(ERR,
257 "SMAC is invalid!\n");
258 return -rte_errno;
259 }
260 rte_memcpy(filter->src_macaddr,
261 ð_spec->src, RTE_ETHER_ADDR_LEN);
262 en |= use_ntuple ?
263 NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_MACADDR :
264 EM_FLOW_ALLOC_INPUT_EN_SRC_MACADDR;
265 valid_flags |= inner ?
266 BNXT_FLOW_L2_INNER_SRC_VALID_FLAG :
267 BNXT_FLOW_L2_SRC_VALID_FLAG;
268 } /*
269 * else {
270 * PMD_DRV_LOG(ERR, "Handle this condition\n");
271 * }
272 */
273 if (eth_mask->type) {
274 filter->ethertype =
275 rte_be_to_cpu_16(eth_spec->type);
276 en |= en_ethertype;
277 }
278 if (inner)
279 valid_flags |= BNXT_FLOW_PARSE_INNER_FLAG;
280
281 break;
282 case RTE_FLOW_ITEM_TYPE_VLAN:
283 vlan_spec = item->spec;
284 vlan_mask = item->mask;
285 if (en & en_ethertype) {
286 rte_flow_error_set(error, EINVAL,
287 RTE_FLOW_ERROR_TYPE_ITEM,
288 item,
289 "VLAN TPID matching is not"
290 " supported");
291 return -rte_errno;
292 }
293 if (vlan_mask->tci &&
294 vlan_mask->tci == RTE_BE16(0x0fff)) {
295 /* Only the VLAN ID can be matched. */
296 filter->l2_ovlan =
297 rte_be_to_cpu_16(vlan_spec->tci &
298 RTE_BE16(0x0fff));
299 en |= EM_FLOW_ALLOC_INPUT_EN_OVLAN_VID;
300 } else {
301 rte_flow_error_set(error,
302 EINVAL,
303 RTE_FLOW_ERROR_TYPE_ITEM,
304 item,
305 "VLAN mask is invalid");
306 return -rte_errno;
307 }
308 if (vlan_mask->inner_type &&
309 vlan_mask->inner_type != RTE_BE16(0xffff)) {
310 rte_flow_error_set(error, EINVAL,
311 RTE_FLOW_ERROR_TYPE_ITEM,
312 item,
313 "inner ethertype mask not"
314 " valid");
315 return -rte_errno;
316 }
317 if (vlan_mask->inner_type) {
318 filter->ethertype =
319 rte_be_to_cpu_16(vlan_spec->inner_type);
320 en |= en_ethertype;
321 }
322
323 break;
324 case RTE_FLOW_ITEM_TYPE_IPV4:
325 /* If mask is not involved, we could use EM filters. */
326 ipv4_spec = item->spec;
327 ipv4_mask = item->mask;
328
329 if (!item->spec || !item->mask)
330 break;
331
332 /* Only IP DST and SRC fields are maskable. */
333 if (ipv4_mask->hdr.version_ihl ||
334 ipv4_mask->hdr.type_of_service ||
335 ipv4_mask->hdr.total_length ||
336 ipv4_mask->hdr.packet_id ||
337 ipv4_mask->hdr.fragment_offset ||
338 ipv4_mask->hdr.time_to_live ||
339 ipv4_mask->hdr.next_proto_id ||
340 ipv4_mask->hdr.hdr_checksum) {
341 rte_flow_error_set(error,
342 EINVAL,
343 RTE_FLOW_ERROR_TYPE_ITEM,
344 item,
345 "Invalid IPv4 mask.");
346 return -rte_errno;
347 }
348
349 filter->dst_ipaddr[0] = ipv4_spec->hdr.dst_addr;
350 filter->src_ipaddr[0] = ipv4_spec->hdr.src_addr;
351
352 if (use_ntuple)
353 en |= NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_IPADDR |
354 NTUPLE_FLTR_ALLOC_INPUT_EN_DST_IPADDR;
355 else
356 en |= EM_FLOW_ALLOC_INPUT_EN_SRC_IPADDR |
357 EM_FLOW_ALLOC_INPUT_EN_DST_IPADDR;
358
359 if (ipv4_mask->hdr.src_addr) {
360 filter->src_ipaddr_mask[0] =
361 ipv4_mask->hdr.src_addr;
362 en |= !use_ntuple ? 0 :
363 NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_IPADDR_MASK;
364 }
365
366 if (ipv4_mask->hdr.dst_addr) {
367 filter->dst_ipaddr_mask[0] =
368 ipv4_mask->hdr.dst_addr;
369 en |= !use_ntuple ? 0 :
370 NTUPLE_FLTR_ALLOC_INPUT_EN_DST_IPADDR_MASK;
371 }
372
373 filter->ip_addr_type = use_ntuple ?
374 HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_IP_ADDR_TYPE_IPV4 :
375 HWRM_CFA_EM_FLOW_ALLOC_INPUT_IP_ADDR_TYPE_IPV4;
376
377 if (ipv4_spec->hdr.next_proto_id) {
378 filter->ip_protocol =
379 ipv4_spec->hdr.next_proto_id;
380 if (use_ntuple)
381 en |= NTUPLE_FLTR_ALLOC_IN_EN_IP_PROTO;
382 else
383 en |= EM_FLOW_ALLOC_INPUT_EN_IP_PROTO;
384 }
385 break;
386 case RTE_FLOW_ITEM_TYPE_IPV6:
387 ipv6_spec = item->spec;
388 ipv6_mask = item->mask;
389
390 if (!item->spec || !item->mask)
391 break;
392
393 /* Only IP DST and SRC fields are maskable. */
394 if (ipv6_mask->hdr.vtc_flow ||
395 ipv6_mask->hdr.payload_len ||
396 ipv6_mask->hdr.proto ||
397 ipv6_mask->hdr.hop_limits) {
398 rte_flow_error_set(error,
399 EINVAL,
400 RTE_FLOW_ERROR_TYPE_ITEM,
401 item,
402 "Invalid IPv6 mask.");
403 return -rte_errno;
404 }
405
406 if (use_ntuple)
407 en |= NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_IPADDR |
408 NTUPLE_FLTR_ALLOC_INPUT_EN_DST_IPADDR;
409 else
410 en |= EM_FLOW_ALLOC_INPUT_EN_SRC_IPADDR |
411 EM_FLOW_ALLOC_INPUT_EN_DST_IPADDR;
412
413 rte_memcpy(filter->src_ipaddr,
414 ipv6_spec->hdr.src_addr, 16);
415 rte_memcpy(filter->dst_ipaddr,
416 ipv6_spec->hdr.dst_addr, 16);
417
418 if (!bnxt_check_zero_bytes(ipv6_mask->hdr.src_addr,
419 16)) {
420 rte_memcpy(filter->src_ipaddr_mask,
421 ipv6_mask->hdr.src_addr, 16);
422 en |= !use_ntuple ? 0 :
423 NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_IPADDR_MASK;
424 }
425
426 if (!bnxt_check_zero_bytes(ipv6_mask->hdr.dst_addr,
427 16)) {
428 rte_memcpy(filter->dst_ipaddr_mask,
429 ipv6_mask->hdr.dst_addr, 16);
430 en |= !use_ntuple ? 0 :
431 NTUPLE_FLTR_ALLOC_INPUT_EN_DST_IPADDR_MASK;
432 }
433
434 filter->ip_addr_type = use_ntuple ?
435 NTUPLE_FLTR_ALLOC_INPUT_IP_ADDR_TYPE_IPV6 :
436 EM_FLOW_ALLOC_INPUT_IP_ADDR_TYPE_IPV6;
437 break;
438 case RTE_FLOW_ITEM_TYPE_TCP:
439 tcp_spec = item->spec;
440 tcp_mask = item->mask;
441
442 if (!item->spec || !item->mask)
443 break;
444
445 /* Check TCP mask. Only DST & SRC ports are maskable */
446 if (tcp_mask->hdr.sent_seq ||
447 tcp_mask->hdr.recv_ack ||
448 tcp_mask->hdr.data_off ||
449 tcp_mask->hdr.tcp_flags ||
450 tcp_mask->hdr.rx_win ||
451 tcp_mask->hdr.cksum ||
452 tcp_mask->hdr.tcp_urp) {
453 rte_flow_error_set(error,
454 EINVAL,
455 RTE_FLOW_ERROR_TYPE_ITEM,
456 item,
457 "Invalid TCP mask");
458 return -rte_errno;
459 }
460
461 filter->src_port = tcp_spec->hdr.src_port;
462 filter->dst_port = tcp_spec->hdr.dst_port;
463
464 if (use_ntuple)
465 en |= NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_PORT |
466 NTUPLE_FLTR_ALLOC_INPUT_EN_DST_PORT;
467 else
468 en |= EM_FLOW_ALLOC_INPUT_EN_SRC_PORT |
469 EM_FLOW_ALLOC_INPUT_EN_DST_PORT;
470
471 if (tcp_mask->hdr.dst_port) {
472 filter->dst_port_mask = tcp_mask->hdr.dst_port;
473 en |= !use_ntuple ? 0 :
474 NTUPLE_FLTR_ALLOC_INPUT_EN_DST_PORT_MASK;
475 }
476
477 if (tcp_mask->hdr.src_port) {
478 filter->src_port_mask = tcp_mask->hdr.src_port;
479 en |= !use_ntuple ? 0 :
480 NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_PORT_MASK;
481 }
482 break;
483 case RTE_FLOW_ITEM_TYPE_UDP:
484 udp_spec = item->spec;
485 udp_mask = item->mask;
486
487 if (!item->spec || !item->mask)
488 break;
489
490 if (udp_mask->hdr.dgram_len ||
491 udp_mask->hdr.dgram_cksum) {
492 rte_flow_error_set(error,
493 EINVAL,
494 RTE_FLOW_ERROR_TYPE_ITEM,
495 item,
496 "Invalid UDP mask");
497 return -rte_errno;
498 }
499
500 filter->src_port = udp_spec->hdr.src_port;
501 filter->dst_port = udp_spec->hdr.dst_port;
502
503 if (use_ntuple)
504 en |= NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_PORT |
505 NTUPLE_FLTR_ALLOC_INPUT_EN_DST_PORT;
506 else
507 en |= EM_FLOW_ALLOC_INPUT_EN_SRC_PORT |
508 EM_FLOW_ALLOC_INPUT_EN_DST_PORT;
509
510 if (udp_mask->hdr.dst_port) {
511 filter->dst_port_mask = udp_mask->hdr.dst_port;
512 en |= !use_ntuple ? 0 :
513 NTUPLE_FLTR_ALLOC_INPUT_EN_DST_PORT_MASK;
514 }
515
516 if (udp_mask->hdr.src_port) {
517 filter->src_port_mask = udp_mask->hdr.src_port;
518 en |= !use_ntuple ? 0 :
519 NTUPLE_FLTR_ALLOC_INPUT_EN_SRC_PORT_MASK;
520 }
521 break;
522 case RTE_FLOW_ITEM_TYPE_VXLAN:
523 vxlan_spec = item->spec;
524 vxlan_mask = item->mask;
525 /* Check if VXLAN item is used to describe protocol.
526 * If yes, both spec and mask should be NULL.
527 * If no, both spec and mask shouldn't be NULL.
528 */
529 if ((!vxlan_spec && vxlan_mask) ||
530 (vxlan_spec && !vxlan_mask)) {
531 rte_flow_error_set(error,
532 EINVAL,
533 RTE_FLOW_ERROR_TYPE_ITEM,
534 item,
535 "Invalid VXLAN item");
536 return -rte_errno;
537 }
538
539 if (!vxlan_spec && !vxlan_mask) {
540 filter->tunnel_type =
541 CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_VXLAN;
542 break;
543 }
544
545 if (vxlan_spec->rsvd1 || vxlan_spec->rsvd0[0] ||
546 vxlan_spec->rsvd0[1] || vxlan_spec->rsvd0[2] ||
547 vxlan_spec->flags != 0x8) {
548 rte_flow_error_set(error,
549 EINVAL,
550 RTE_FLOW_ERROR_TYPE_ITEM,
551 item,
552 "Invalid VXLAN item");
553 return -rte_errno;
554 }
555
556 /* Check if VNI is masked. */
557 if (vxlan_mask != NULL) {
558 vni_masked =
559 !!memcmp(vxlan_mask->vni, vni_mask,
560 RTE_DIM(vni_mask));
561 if (vni_masked) {
562 rte_flow_error_set
563 (error,
564 EINVAL,
565 RTE_FLOW_ERROR_TYPE_ITEM,
566 item,
567 "Invalid VNI mask");
568 return -rte_errno;
569 }
570
571 rte_memcpy(((uint8_t *)&tenant_id_be + 1),
572 vxlan_spec->vni, 3);
573 filter->vni =
574 rte_be_to_cpu_32(tenant_id_be);
575 filter->tunnel_type =
576 CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_VXLAN;
577 }
578 break;
579 case RTE_FLOW_ITEM_TYPE_NVGRE:
580 nvgre_spec = item->spec;
581 nvgre_mask = item->mask;
582 /* Check if NVGRE item is used to describe protocol.
583 * If yes, both spec and mask should be NULL.
584 * If no, both spec and mask shouldn't be NULL.
585 */
586 if ((!nvgre_spec && nvgre_mask) ||
587 (nvgre_spec && !nvgre_mask)) {
588 rte_flow_error_set(error,
589 EINVAL,
590 RTE_FLOW_ERROR_TYPE_ITEM,
591 item,
592 "Invalid NVGRE item");
593 return -rte_errno;
594 }
595
596 if (!nvgre_spec && !nvgre_mask) {
597 filter->tunnel_type =
598 CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_NVGRE;
599 break;
600 }
601
602 if (nvgre_spec->c_k_s_rsvd0_ver != 0x2000 ||
603 nvgre_spec->protocol != 0x6558) {
604 rte_flow_error_set(error,
605 EINVAL,
606 RTE_FLOW_ERROR_TYPE_ITEM,
607 item,
608 "Invalid NVGRE item");
609 return -rte_errno;
610 }
611
612 if (nvgre_spec && nvgre_mask) {
613 tni_masked =
614 !!memcmp(nvgre_mask->tni, tni_mask,
615 RTE_DIM(tni_mask));
616 if (tni_masked) {
617 rte_flow_error_set
618 (error,
619 EINVAL,
620 RTE_FLOW_ERROR_TYPE_ITEM,
621 item,
622 "Invalid TNI mask");
623 return -rte_errno;
624 }
625 rte_memcpy(((uint8_t *)&tenant_id_be + 1),
626 nvgre_spec->tni, 3);
627 filter->vni =
628 rte_be_to_cpu_32(tenant_id_be);
629 filter->tunnel_type =
630 CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_NVGRE;
631 }
632 break;
633
634 case RTE_FLOW_ITEM_TYPE_GRE:
635 gre_spec = (const struct rte_flow_item_gre *)item->spec;
636 gre_mask = (const struct rte_flow_item_gre *)item->mask;
637
638 /*
639 *Check if GRE item is used to describe protocol.
640 * If yes, both spec and mask should be NULL.
641 * If no, both spec and mask shouldn't be NULL.
642 */
643 if (!!gre_spec ^ !!gre_mask) {
644 rte_flow_error_set(error, EINVAL,
645 RTE_FLOW_ERROR_TYPE_ITEM,
646 item,
647 "Invalid GRE item");
648 return -rte_errno;
649 }
650
651 if (!gre_spec && !gre_mask) {
652 filter->tunnel_type =
653 CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_IPGRE;
654 break;
655 }
656 break;
657
658 case RTE_FLOW_ITEM_TYPE_VF:
659 vf_spec = item->spec;
660 vf = vf_spec->id;
661 if (!BNXT_PF(bp)) {
662 rte_flow_error_set(error,
663 EINVAL,
664 RTE_FLOW_ERROR_TYPE_ITEM,
665 item,
666 "Configuring on a VF!");
667 return -rte_errno;
668 }
669
670 if (vf >= bp->pdev->max_vfs) {
671 rte_flow_error_set(error,
672 EINVAL,
673 RTE_FLOW_ERROR_TYPE_ITEM,
674 item,
675 "Incorrect VF id!");
676 return -rte_errno;
677 }
678
679 if (!attr->transfer) {
680 rte_flow_error_set(error,
681 ENOTSUP,
682 RTE_FLOW_ERROR_TYPE_ITEM,
683 item,
684 "Matching VF traffic without"
685 " affecting it (transfer attribute)"
686 " is unsupported");
687 return -rte_errno;
688 }
689
690 filter->mirror_vnic_id =
691 dflt_vnic = bnxt_hwrm_func_qcfg_vf_dflt_vnic_id(bp, vf);
692 if (dflt_vnic < 0) {
693 /* This simply indicates there's no driver
694 * loaded. This is not an error.
695 */
696 rte_flow_error_set
697 (error,
698 EINVAL,
699 RTE_FLOW_ERROR_TYPE_ITEM,
700 item,
701 "Unable to get default VNIC for VF");
702 return -rte_errno;
703 }
704
705 filter->mirror_vnic_id = dflt_vnic;
706 en |= NTUPLE_FLTR_ALLOC_INPUT_EN_MIRROR_VNIC_ID;
707 break;
708 default:
709 break;
710 }
711 item++;
712 }
713 filter->enables = en;
714 filter->valid_flags = valid_flags;
715
716 return 0;
717 }
718
719 /* Parse attributes */
720 static int
bnxt_flow_parse_attr(const struct rte_flow_attr * attr,struct rte_flow_error * error)721 bnxt_flow_parse_attr(const struct rte_flow_attr *attr,
722 struct rte_flow_error *error)
723 {
724 /* Must be input direction */
725 if (!attr->ingress) {
726 rte_flow_error_set(error,
727 EINVAL,
728 RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
729 attr,
730 "Only support ingress.");
731 return -rte_errno;
732 }
733
734 /* Not supported */
735 if (attr->egress) {
736 rte_flow_error_set(error,
737 EINVAL,
738 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
739 attr,
740 "No support for egress.");
741 return -rte_errno;
742 }
743
744 return 0;
745 }
746
747 static struct bnxt_filter_info *
bnxt_find_matching_l2_filter(struct bnxt * bp,struct bnxt_filter_info * nf)748 bnxt_find_matching_l2_filter(struct bnxt *bp, struct bnxt_filter_info *nf)
749 {
750 struct bnxt_filter_info *mf, *f0;
751 struct bnxt_vnic_info *vnic0;
752 int i;
753
754 vnic0 = BNXT_GET_DEFAULT_VNIC(bp);
755 f0 = STAILQ_FIRST(&vnic0->filter);
756
757 /* This flow has same DST MAC as the port/l2 filter. */
758 if (memcmp(f0->l2_addr, nf->dst_macaddr, RTE_ETHER_ADDR_LEN) == 0)
759 return f0;
760
761 for (i = bp->max_vnics - 1; i >= 0; i--) {
762 struct bnxt_vnic_info *vnic = &bp->vnic_info[i];
763
764 if (vnic->fw_vnic_id == INVALID_VNIC_ID)
765 continue;
766
767 STAILQ_FOREACH(mf, &vnic->filter, next) {
768
769 if (mf->matching_l2_fltr_ptr)
770 continue;
771
772 if (mf->ethertype == nf->ethertype &&
773 mf->l2_ovlan == nf->l2_ovlan &&
774 mf->l2_ovlan_mask == nf->l2_ovlan_mask &&
775 mf->l2_ivlan == nf->l2_ivlan &&
776 mf->l2_ivlan_mask == nf->l2_ivlan_mask &&
777 !memcmp(mf->src_macaddr, nf->src_macaddr,
778 RTE_ETHER_ADDR_LEN) &&
779 !memcmp(mf->dst_macaddr, nf->dst_macaddr,
780 RTE_ETHER_ADDR_LEN))
781 return mf;
782 }
783 }
784 return NULL;
785 }
786
787 static struct bnxt_filter_info *
bnxt_create_l2_filter(struct bnxt * bp,struct bnxt_filter_info * nf,struct bnxt_vnic_info * vnic)788 bnxt_create_l2_filter(struct bnxt *bp, struct bnxt_filter_info *nf,
789 struct bnxt_vnic_info *vnic)
790 {
791 struct bnxt_filter_info *filter1;
792 int rc;
793
794 /* Alloc new L2 filter.
795 * This flow needs MAC filter which does not match any existing
796 * L2 filters.
797 */
798 filter1 = bnxt_get_unused_filter(bp);
799 if (filter1 == NULL)
800 return NULL;
801
802 memcpy(filter1, nf, sizeof(*filter1));
803
804 filter1->flags = HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_XDP_DISABLE;
805 filter1->flags |= HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_PATH_RX;
806 if (nf->valid_flags & BNXT_FLOW_L2_SRC_VALID_FLAG ||
807 nf->valid_flags & BNXT_FLOW_L2_DST_VALID_FLAG) {
808 filter1->flags |=
809 HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_OUTERMOST;
810 PMD_DRV_LOG(DEBUG, "Create Outer filter\n");
811 }
812
813 if (nf->filter_type == HWRM_CFA_L2_FILTER &&
814 (nf->valid_flags & BNXT_FLOW_L2_SRC_VALID_FLAG ||
815 nf->valid_flags & BNXT_FLOW_L2_INNER_SRC_VALID_FLAG)) {
816 PMD_DRV_LOG(DEBUG, "Create L2 filter for SRC MAC\n");
817 filter1->flags |=
818 HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_SOURCE_VALID;
819 memcpy(filter1->l2_addr, nf->src_macaddr, RTE_ETHER_ADDR_LEN);
820 } else {
821 PMD_DRV_LOG(DEBUG, "Create L2 filter for DST MAC\n");
822 memcpy(filter1->l2_addr, nf->dst_macaddr, RTE_ETHER_ADDR_LEN);
823 }
824
825 if (nf->priority &&
826 (nf->valid_flags & BNXT_FLOW_L2_DST_VALID_FLAG ||
827 nf->valid_flags & BNXT_FLOW_L2_INNER_DST_VALID_FLAG)) {
828 /* Tell the FW where to place the filter in the table. */
829 if (nf->priority > 65535) {
830 filter1->pri_hint =
831 HWRM_CFA_L2_FILTER_ALLOC_INPUT_PRI_HINT_BELOW_FILTER;
832 /* This will place the filter in TCAM */
833 filter1->l2_filter_id_hint = (uint64_t)-1;
834 }
835 }
836
837 if (nf->valid_flags & (BNXT_FLOW_L2_DST_VALID_FLAG |
838 BNXT_FLOW_L2_SRC_VALID_FLAG |
839 BNXT_FLOW_L2_INNER_SRC_VALID_FLAG |
840 BNXT_FLOW_L2_INNER_DST_VALID_FLAG)) {
841 filter1->enables =
842 HWRM_CFA_L2_FILTER_ALLOC_INPUT_ENABLES_L2_ADDR |
843 L2_FILTER_ALLOC_INPUT_EN_L2_ADDR_MASK;
844 memset(filter1->l2_addr_mask, 0xff, RTE_ETHER_ADDR_LEN);
845 }
846
847 if (nf->valid_flags & BNXT_FLOW_L2_DROP_FLAG) {
848 filter1->flags |=
849 HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_DROP;
850 if (nf->ethertype == RTE_ETHER_TYPE_IPV4) {
851 /* Num VLANs for drop filter will/should be 0.
852 * If the req is memset to 0, then the count will
853 * be automatically set to 0.
854 */
855 if (nf->valid_flags & BNXT_FLOW_PARSE_INNER_FLAG) {
856 filter1->enables |=
857 L2_FILTER_ALLOC_INPUT_EN_T_NUM_VLANS;
858 } else {
859 filter1->enables |=
860 L2_FILTER_ALLOC_INPUT_EN_NUM_VLANS;
861 filter1->flags |=
862 HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_OUTERMOST;
863 }
864 }
865 }
866
867 rc = bnxt_hwrm_set_l2_filter(bp, vnic->fw_vnic_id,
868 filter1);
869 if (rc) {
870 bnxt_free_filter(bp, filter1);
871 return NULL;
872 }
873 return filter1;
874 }
875
876 struct bnxt_filter_info *
bnxt_get_l2_filter(struct bnxt * bp,struct bnxt_filter_info * nf,struct bnxt_vnic_info * vnic)877 bnxt_get_l2_filter(struct bnxt *bp, struct bnxt_filter_info *nf,
878 struct bnxt_vnic_info *vnic)
879 {
880 struct bnxt_filter_info *l2_filter = NULL;
881
882 l2_filter = bnxt_find_matching_l2_filter(bp, nf);
883 if (l2_filter) {
884 l2_filter->l2_ref_cnt++;
885 } else {
886 l2_filter = bnxt_create_l2_filter(bp, nf, vnic);
887 if (l2_filter) {
888 STAILQ_INSERT_TAIL(&vnic->filter, l2_filter, next);
889 l2_filter->vnic = vnic;
890 }
891 }
892 nf->matching_l2_fltr_ptr = l2_filter;
893
894 return l2_filter;
895 }
896
bnxt_vnic_prep(struct bnxt * bp,struct bnxt_vnic_info * vnic)897 static int bnxt_vnic_prep(struct bnxt *bp, struct bnxt_vnic_info *vnic)
898 {
899 struct rte_eth_conf *dev_conf = &bp->eth_dev->data->dev_conf;
900 uint64_t rx_offloads = dev_conf->rxmode.offloads;
901 int rc;
902
903 rc = bnxt_vnic_grp_alloc(bp, vnic);
904 if (rc)
905 goto ret;
906
907 rc = bnxt_hwrm_vnic_alloc(bp, vnic);
908 if (rc) {
909 PMD_DRV_LOG(ERR, "HWRM vnic alloc failure rc: %x\n", rc);
910 goto ret;
911 }
912 bp->nr_vnics++;
913
914 /* RSS context is required only when there is more than one RSS ring */
915 if (vnic->rx_queue_cnt > 1) {
916 rc = bnxt_hwrm_vnic_ctx_alloc(bp, vnic, 0 /* ctx_idx 0 */);
917 if (rc) {
918 PMD_DRV_LOG(ERR,
919 "HWRM vnic ctx alloc failure: %x\n", rc);
920 goto ret;
921 }
922 } else {
923 PMD_DRV_LOG(DEBUG, "No RSS context required\n");
924 }
925
926 if (rx_offloads & DEV_RX_OFFLOAD_VLAN_STRIP)
927 vnic->vlan_strip = true;
928 else
929 vnic->vlan_strip = false;
930
931 rc = bnxt_hwrm_vnic_cfg(bp, vnic);
932 if (rc)
933 goto ret;
934
935 bnxt_hwrm_vnic_plcmode_cfg(bp, vnic);
936
937 ret:
938 return rc;
939 }
940
match_vnic_rss_cfg(struct bnxt * bp,struct bnxt_vnic_info * vnic,const struct rte_flow_action_rss * rss)941 static int match_vnic_rss_cfg(struct bnxt *bp,
942 struct bnxt_vnic_info *vnic,
943 const struct rte_flow_action_rss *rss)
944 {
945 unsigned int match = 0, i;
946
947 if (vnic->rx_queue_cnt != rss->queue_num)
948 return -EINVAL;
949
950 for (i = 0; i < rss->queue_num; i++) {
951 if (!bp->rx_queues[rss->queue[i]]->vnic->rx_queue_cnt &&
952 !bp->rx_queues[rss->queue[i]]->rx_started)
953 return -EINVAL;
954 }
955
956 for (i = 0; i < vnic->rx_queue_cnt; i++) {
957 int j;
958
959 for (j = 0; j < vnic->rx_queue_cnt; j++) {
960 if (bp->grp_info[rss->queue[i]].fw_grp_id ==
961 vnic->fw_grp_ids[j])
962 match++;
963 }
964 }
965
966 if (match != vnic->rx_queue_cnt) {
967 PMD_DRV_LOG(ERR,
968 "VNIC queue count %d vs queues matched %d\n",
969 match, vnic->rx_queue_cnt);
970 return -EINVAL;
971 }
972
973 return 0;
974 }
975
976 static void
bnxt_update_filter_flags_en(struct bnxt_filter_info * filter,struct bnxt_filter_info * filter1,int use_ntuple)977 bnxt_update_filter_flags_en(struct bnxt_filter_info *filter,
978 struct bnxt_filter_info *filter1,
979 int use_ntuple)
980 {
981 if (!use_ntuple &&
982 !(filter->valid_flags &
983 ~(BNXT_FLOW_L2_DST_VALID_FLAG |
984 BNXT_FLOW_L2_SRC_VALID_FLAG |
985 BNXT_FLOW_L2_INNER_SRC_VALID_FLAG |
986 BNXT_FLOW_L2_INNER_DST_VALID_FLAG |
987 BNXT_FLOW_L2_DROP_FLAG |
988 BNXT_FLOW_PARSE_INNER_FLAG))) {
989 filter->flags = filter1->flags;
990 filter->enables = filter1->enables;
991 filter->filter_type = HWRM_CFA_L2_FILTER;
992 memcpy(filter->l2_addr, filter1->l2_addr, RTE_ETHER_ADDR_LEN);
993 memset(filter->l2_addr_mask, 0xff, RTE_ETHER_ADDR_LEN);
994 filter->pri_hint = filter1->pri_hint;
995 filter->l2_filter_id_hint = filter1->l2_filter_id_hint;
996 }
997 filter->fw_l2_filter_id = filter1->fw_l2_filter_id;
998 filter->l2_ref_cnt = filter1->l2_ref_cnt;
999 filter->flow_id = filter1->flow_id;
1000 PMD_DRV_LOG(DEBUG,
1001 "l2_filter: %p fw_l2_filter_id %" PRIx64 " l2_ref_cnt %u\n",
1002 filter1, filter->fw_l2_filter_id, filter->l2_ref_cnt);
1003 }
1004
1005 static int
bnxt_validate_and_parse_flow(struct rte_eth_dev * dev,const struct rte_flow_item pattern[],const struct rte_flow_action actions[],const struct rte_flow_attr * attr,struct rte_flow_error * error,struct bnxt_filter_info * filter)1006 bnxt_validate_and_parse_flow(struct rte_eth_dev *dev,
1007 const struct rte_flow_item pattern[],
1008 const struct rte_flow_action actions[],
1009 const struct rte_flow_attr *attr,
1010 struct rte_flow_error *error,
1011 struct bnxt_filter_info *filter)
1012 {
1013 const struct rte_flow_action *act =
1014 bnxt_flow_non_void_action(actions);
1015 struct bnxt *bp = dev->data->dev_private;
1016 struct rte_eth_conf *dev_conf = &bp->eth_dev->data->dev_conf;
1017 struct bnxt_vnic_info *vnic = NULL, *vnic0 = NULL;
1018 const struct rte_flow_action_queue *act_q;
1019 const struct rte_flow_action_vf *act_vf;
1020 struct bnxt_filter_info *filter1 = NULL;
1021 const struct rte_flow_action_rss *rss;
1022 struct bnxt_rx_queue *rxq = NULL;
1023 int dflt_vnic, vnic_id;
1024 unsigned int rss_idx;
1025 uint32_t vf = 0, i;
1026 int rc, use_ntuple;
1027
1028 rc =
1029 bnxt_validate_and_parse_flow_type(bp, attr, pattern, error, filter);
1030 if (rc != 0)
1031 goto ret;
1032
1033 rc = bnxt_flow_parse_attr(attr, error);
1034 if (rc != 0)
1035 goto ret;
1036
1037 /* Since we support ingress attribute only - right now. */
1038 if (filter->filter_type == HWRM_CFA_EM_FILTER)
1039 filter->flags = HWRM_CFA_EM_FLOW_ALLOC_INPUT_FLAGS_PATH_RX;
1040
1041 use_ntuple = bnxt_filter_type_check(pattern, error);
1042
1043 start:
1044 switch (act->type) {
1045 case RTE_FLOW_ACTION_TYPE_QUEUE:
1046 /* Allow this flow. Redirect to a VNIC. */
1047 act_q = (const struct rte_flow_action_queue *)act->conf;
1048 if (!act_q->index || act_q->index >= bp->rx_nr_rings) {
1049 rte_flow_error_set(error,
1050 EINVAL,
1051 RTE_FLOW_ERROR_TYPE_ACTION,
1052 act,
1053 "Invalid queue ID.");
1054 rc = -rte_errno;
1055 goto ret;
1056 }
1057 PMD_DRV_LOG(DEBUG, "Queue index %d\n", act_q->index);
1058
1059 vnic_id = attr->group;
1060 if (!vnic_id) {
1061 PMD_DRV_LOG(DEBUG, "Group id is 0\n");
1062 vnic_id = act_q->index;
1063 }
1064
1065 BNXT_VALID_VNIC_OR_RET(bp, vnic_id);
1066
1067 vnic = &bp->vnic_info[vnic_id];
1068 if (vnic->rx_queue_cnt) {
1069 if (vnic->start_grp_id != act_q->index) {
1070 PMD_DRV_LOG(ERR,
1071 "VNIC already in use\n");
1072 rte_flow_error_set(error,
1073 EINVAL,
1074 RTE_FLOW_ERROR_TYPE_ACTION,
1075 act,
1076 "VNIC already in use");
1077 rc = -rte_errno;
1078 goto ret;
1079 }
1080 goto use_vnic;
1081 }
1082
1083 rxq = bp->rx_queues[act_q->index];
1084
1085 if (!(dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS) && rxq &&
1086 vnic->fw_vnic_id != INVALID_HW_RING_ID)
1087 goto use_vnic;
1088
1089 if (!rxq) {
1090 PMD_DRV_LOG(ERR,
1091 "Queue invalid or used with other VNIC\n");
1092 rte_flow_error_set(error,
1093 EINVAL,
1094 RTE_FLOW_ERROR_TYPE_ACTION,
1095 act,
1096 "Queue invalid queue or in use");
1097 rc = -rte_errno;
1098 goto ret;
1099 }
1100
1101 rxq->vnic = vnic;
1102 rxq->rx_started = 1;
1103 vnic->rx_queue_cnt++;
1104 vnic->start_grp_id = act_q->index;
1105 vnic->end_grp_id = act_q->index;
1106 vnic->func_default = 0; //This is not a default VNIC.
1107
1108 PMD_DRV_LOG(DEBUG, "VNIC found\n");
1109
1110 rc = bnxt_vnic_prep(bp, vnic);
1111 if (rc) {
1112 rte_flow_error_set(error,
1113 EINVAL,
1114 RTE_FLOW_ERROR_TYPE_ACTION,
1115 act,
1116 "VNIC prep fail");
1117 rc = -rte_errno;
1118 goto ret;
1119 }
1120
1121 PMD_DRV_LOG(DEBUG,
1122 "vnic[%d] = %p vnic->fw_grp_ids = %p\n",
1123 act_q->index, vnic, vnic->fw_grp_ids);
1124
1125 use_vnic:
1126 vnic->ff_pool_idx = vnic_id;
1127 PMD_DRV_LOG(DEBUG,
1128 "Setting vnic ff_idx %d\n", vnic->ff_pool_idx);
1129 filter->dst_id = vnic->fw_vnic_id;
1130
1131 /* For ntuple filter, create the L2 filter with default VNIC.
1132 * The user specified redirect queue will be set while creating
1133 * the ntuple filter in hardware.
1134 */
1135 vnic0 = BNXT_GET_DEFAULT_VNIC(bp);
1136 if (use_ntuple)
1137 filter1 = bnxt_get_l2_filter(bp, filter, vnic0);
1138 else
1139 filter1 = bnxt_get_l2_filter(bp, filter, vnic);
1140 if (filter1 == NULL) {
1141 rte_flow_error_set(error,
1142 ENOSPC,
1143 RTE_FLOW_ERROR_TYPE_ACTION,
1144 act,
1145 "Filter not available");
1146 rc = -rte_errno;
1147 goto ret;
1148 }
1149
1150 PMD_DRV_LOG(DEBUG, "new fltr: %p l2fltr: %p l2_ref_cnt: %d\n",
1151 filter, filter1, filter1->l2_ref_cnt);
1152 bnxt_update_filter_flags_en(filter, filter1, use_ntuple);
1153 break;
1154 case RTE_FLOW_ACTION_TYPE_DROP:
1155 vnic0 = &bp->vnic_info[0];
1156 filter->dst_id = vnic0->fw_vnic_id;
1157 filter->valid_flags |= BNXT_FLOW_L2_DROP_FLAG;
1158 filter1 = bnxt_get_l2_filter(bp, filter, vnic0);
1159 if (filter1 == NULL) {
1160 rte_flow_error_set(error,
1161 ENOSPC,
1162 RTE_FLOW_ERROR_TYPE_ACTION,
1163 act,
1164 "Filter not available");
1165 rc = -rte_errno;
1166 goto ret;
1167 }
1168
1169 if (filter->filter_type == HWRM_CFA_EM_FILTER)
1170 filter->flags =
1171 HWRM_CFA_EM_FLOW_ALLOC_INPUT_FLAGS_DROP;
1172 else if (filter->filter_type == HWRM_CFA_NTUPLE_FILTER)
1173 filter->flags =
1174 HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_FLAGS_DROP;
1175
1176 bnxt_update_filter_flags_en(filter, filter1, use_ntuple);
1177 break;
1178 case RTE_FLOW_ACTION_TYPE_COUNT:
1179 vnic0 = &bp->vnic_info[0];
1180 filter1 = bnxt_get_l2_filter(bp, filter, vnic0);
1181 if (filter1 == NULL) {
1182 rte_flow_error_set(error,
1183 ENOSPC,
1184 RTE_FLOW_ERROR_TYPE_ACTION,
1185 act,
1186 "New filter not available");
1187 rc = -rte_errno;
1188 goto ret;
1189 }
1190
1191 filter->fw_l2_filter_id = filter1->fw_l2_filter_id;
1192 filter->flow_id = filter1->flow_id;
1193 filter->flags = HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_FLAGS_METER;
1194 break;
1195 case RTE_FLOW_ACTION_TYPE_VF:
1196 act_vf = (const struct rte_flow_action_vf *)act->conf;
1197 vf = act_vf->id;
1198
1199 if (filter->tunnel_type ==
1200 CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_VXLAN ||
1201 filter->tunnel_type ==
1202 CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_IPGRE) {
1203 /* If issued on a VF, ensure id is 0 and is trusted */
1204 if (BNXT_VF(bp)) {
1205 if (!BNXT_VF_IS_TRUSTED(bp) || vf) {
1206 rte_flow_error_set(error, EINVAL,
1207 RTE_FLOW_ERROR_TYPE_ACTION,
1208 act,
1209 "Incorrect VF");
1210 rc = -rte_errno;
1211 goto ret;
1212 }
1213 }
1214
1215 filter->enables |= filter->tunnel_type;
1216 filter->filter_type = HWRM_CFA_TUNNEL_REDIRECT_FILTER;
1217 goto done;
1218 }
1219
1220 if (vf >= bp->pdev->max_vfs) {
1221 rte_flow_error_set(error,
1222 EINVAL,
1223 RTE_FLOW_ERROR_TYPE_ACTION,
1224 act,
1225 "Incorrect VF id!");
1226 rc = -rte_errno;
1227 goto ret;
1228 }
1229
1230 filter->mirror_vnic_id =
1231 dflt_vnic = bnxt_hwrm_func_qcfg_vf_dflt_vnic_id(bp, vf);
1232 if (dflt_vnic < 0) {
1233 /* This simply indicates there's no driver loaded.
1234 * This is not an error.
1235 */
1236 rte_flow_error_set(error,
1237 EINVAL,
1238 RTE_FLOW_ERROR_TYPE_ACTION,
1239 act,
1240 "Unable to get default VNIC for VF");
1241 rc = -rte_errno;
1242 goto ret;
1243 }
1244
1245 filter->mirror_vnic_id = dflt_vnic;
1246 filter->enables |= NTUPLE_FLTR_ALLOC_INPUT_EN_MIRROR_VNIC_ID;
1247
1248 vnic0 = &bp->vnic_info[0];
1249 filter1 = bnxt_get_l2_filter(bp, filter, vnic0);
1250 if (filter1 == NULL) {
1251 rte_flow_error_set(error,
1252 ENOSPC,
1253 RTE_FLOW_ERROR_TYPE_ACTION,
1254 act,
1255 "New filter not available");
1256 rc = -rte_errno;
1257 goto ret;
1258 }
1259
1260 filter->fw_l2_filter_id = filter1->fw_l2_filter_id;
1261 filter->flow_id = filter1->flow_id;
1262 break;
1263 case RTE_FLOW_ACTION_TYPE_RSS:
1264 rss = (const struct rte_flow_action_rss *)act->conf;
1265
1266 vnic_id = attr->group;
1267
1268 BNXT_VALID_VNIC_OR_RET(bp, vnic_id);
1269 vnic = &bp->vnic_info[vnic_id];
1270
1271 /* Check if requested RSS config matches RSS config of VNIC
1272 * only if it is not a fresh VNIC configuration.
1273 * Otherwise the existing VNIC configuration can be used.
1274 */
1275 if (vnic->rx_queue_cnt) {
1276 rc = match_vnic_rss_cfg(bp, vnic, rss);
1277 if (rc) {
1278 PMD_DRV_LOG(ERR,
1279 "VNIC and RSS config mismatch\n");
1280 rte_flow_error_set(error,
1281 EINVAL,
1282 RTE_FLOW_ERROR_TYPE_ACTION,
1283 act,
1284 "VNIC and RSS cfg mismatch");
1285 rc = -rte_errno;
1286 goto ret;
1287 }
1288 goto vnic_found;
1289 }
1290
1291 for (i = 0; i < rss->queue_num; i++) {
1292 PMD_DRV_LOG(DEBUG, "RSS action Queue %d\n",
1293 rss->queue[i]);
1294
1295 if (!rss->queue[i] ||
1296 rss->queue[i] >= bp->rx_nr_rings ||
1297 !bp->rx_queues[rss->queue[i]]) {
1298 rte_flow_error_set(error,
1299 EINVAL,
1300 RTE_FLOW_ERROR_TYPE_ACTION,
1301 act,
1302 "Invalid queue ID for RSS");
1303 rc = -rte_errno;
1304 goto ret;
1305 }
1306 rxq = bp->rx_queues[rss->queue[i]];
1307
1308 if (bp->vnic_info[0].fw_grp_ids[rss->queue[i]] !=
1309 INVALID_HW_RING_ID) {
1310 PMD_DRV_LOG(ERR,
1311 "queue active with other VNIC\n");
1312 rte_flow_error_set(error,
1313 EINVAL,
1314 RTE_FLOW_ERROR_TYPE_ACTION,
1315 act,
1316 "Invalid queue ID for RSS");
1317 rc = -rte_errno;
1318 goto ret;
1319 }
1320
1321 rxq->vnic = vnic;
1322 rxq->rx_started = 1;
1323 vnic->rx_queue_cnt++;
1324 }
1325
1326 vnic->start_grp_id = rss->queue[0];
1327 vnic->end_grp_id = rss->queue[rss->queue_num - 1];
1328 vnic->func_default = 0; //This is not a default VNIC.
1329
1330 rc = bnxt_vnic_prep(bp, vnic);
1331 if (rc) {
1332 rte_flow_error_set(error,
1333 EINVAL,
1334 RTE_FLOW_ERROR_TYPE_ACTION,
1335 act,
1336 "VNIC prep fail");
1337 rc = -rte_errno;
1338 goto ret;
1339 }
1340
1341 PMD_DRV_LOG(DEBUG,
1342 "vnic[%d] = %p vnic->fw_grp_ids = %p\n",
1343 vnic_id, vnic, vnic->fw_grp_ids);
1344
1345 vnic->ff_pool_idx = vnic_id;
1346 PMD_DRV_LOG(DEBUG,
1347 "Setting vnic ff_pool_idx %d\n", vnic->ff_pool_idx);
1348
1349 /* This can be done only after vnic_grp_alloc is done. */
1350 for (i = 0; i < vnic->rx_queue_cnt; i++) {
1351 vnic->fw_grp_ids[i] =
1352 bp->grp_info[rss->queue[i]].fw_grp_id;
1353 /* Make sure vnic0 does not use these rings. */
1354 bp->vnic_info[0].fw_grp_ids[rss->queue[i]] =
1355 INVALID_HW_RING_ID;
1356 }
1357
1358 for (rss_idx = 0; rss_idx < HW_HASH_INDEX_SIZE; ) {
1359 for (i = 0; i < vnic->rx_queue_cnt; i++)
1360 vnic->rss_table[rss_idx++] =
1361 vnic->fw_grp_ids[i];
1362 }
1363
1364 /* Configure RSS only if the queue count is > 1 */
1365 if (vnic->rx_queue_cnt > 1) {
1366 vnic->hash_type =
1367 bnxt_rte_to_hwrm_hash_types(rss->types);
1368 vnic->hash_mode =
1369 bnxt_rte_to_hwrm_hash_level(bp, rss->types, rss->level);
1370
1371 if (!rss->key_len) {
1372 /* If hash key has not been specified,
1373 * use random hash key.
1374 */
1375 prandom_bytes(vnic->rss_hash_key,
1376 HW_HASH_KEY_SIZE);
1377 } else {
1378 if (rss->key_len > HW_HASH_KEY_SIZE)
1379 memcpy(vnic->rss_hash_key,
1380 rss->key,
1381 HW_HASH_KEY_SIZE);
1382 else
1383 memcpy(vnic->rss_hash_key,
1384 rss->key,
1385 rss->key_len);
1386 }
1387 bnxt_hwrm_vnic_rss_cfg(bp, vnic);
1388 } else {
1389 PMD_DRV_LOG(DEBUG, "No RSS config required\n");
1390 }
1391
1392 vnic_found:
1393 filter->dst_id = vnic->fw_vnic_id;
1394 filter1 = bnxt_get_l2_filter(bp, filter, vnic);
1395 if (filter1 == NULL) {
1396 rte_flow_error_set(error,
1397 ENOSPC,
1398 RTE_FLOW_ERROR_TYPE_ACTION,
1399 act,
1400 "New filter not available");
1401 rc = -rte_errno;
1402 goto ret;
1403 }
1404
1405 PMD_DRV_LOG(DEBUG, "L2 filter created\n");
1406 bnxt_update_filter_flags_en(filter, filter1, use_ntuple);
1407 break;
1408 case RTE_FLOW_ACTION_TYPE_MARK:
1409 if (bp->mark_table == NULL) {
1410 rte_flow_error_set(error,
1411 ENOMEM,
1412 RTE_FLOW_ERROR_TYPE_ACTION,
1413 act,
1414 "Mark table not allocated.");
1415 rc = -rte_errno;
1416 goto ret;
1417 }
1418
1419 if (bp->flags & BNXT_FLAG_RX_VECTOR_PKT_MODE) {
1420 PMD_DRV_LOG(DEBUG,
1421 "Disabling vector processing for mark\n");
1422 bp->eth_dev->rx_pkt_burst = bnxt_recv_pkts;
1423 bp->flags &= ~BNXT_FLAG_RX_VECTOR_PKT_MODE;
1424 }
1425
1426 filter->valid_flags |= BNXT_FLOW_MARK_FLAG;
1427 filter->mark = ((const struct rte_flow_action_mark *)
1428 act->conf)->id;
1429 PMD_DRV_LOG(DEBUG, "Mark the flow %d\n", filter->mark);
1430 break;
1431 default:
1432 rte_flow_error_set(error,
1433 EINVAL,
1434 RTE_FLOW_ERROR_TYPE_ACTION,
1435 act,
1436 "Invalid action.");
1437 rc = -rte_errno;
1438 goto ret;
1439 }
1440
1441 done:
1442 act = bnxt_flow_non_void_action(++act);
1443 while (act->type != RTE_FLOW_ACTION_TYPE_END)
1444 goto start;
1445
1446 return rc;
1447 ret:
1448
1449 if (filter1) {
1450 bnxt_hwrm_clear_l2_filter(bp, filter1);
1451 bnxt_free_filter(bp, filter1);
1452 }
1453
1454 if (rte_errno) {
1455 if (vnic && STAILQ_EMPTY(&vnic->filter))
1456 vnic->rx_queue_cnt = 0;
1457
1458 if (rxq && !vnic->rx_queue_cnt)
1459 rxq->vnic = &bp->vnic_info[0];
1460 }
1461 return -rte_errno;
1462 }
1463
1464 static
find_matching_vnic(struct bnxt * bp,struct bnxt_filter_info * filter)1465 struct bnxt_vnic_info *find_matching_vnic(struct bnxt *bp,
1466 struct bnxt_filter_info *filter)
1467 {
1468 struct bnxt_vnic_info *vnic = NULL;
1469 unsigned int i;
1470
1471 for (i = 0; i < bp->max_vnics; i++) {
1472 vnic = &bp->vnic_info[i];
1473 if (vnic->fw_vnic_id != INVALID_VNIC_ID &&
1474 filter->dst_id == vnic->fw_vnic_id) {
1475 PMD_DRV_LOG(DEBUG, "Found matching VNIC Id %d\n",
1476 vnic->ff_pool_idx);
1477 return vnic;
1478 }
1479 }
1480 return NULL;
1481 }
1482
1483 static int
bnxt_flow_validate(struct rte_eth_dev * dev,const struct rte_flow_attr * attr,const struct rte_flow_item pattern[],const struct rte_flow_action actions[],struct rte_flow_error * error)1484 bnxt_flow_validate(struct rte_eth_dev *dev,
1485 const struct rte_flow_attr *attr,
1486 const struct rte_flow_item pattern[],
1487 const struct rte_flow_action actions[],
1488 struct rte_flow_error *error)
1489 {
1490 struct bnxt *bp = dev->data->dev_private;
1491 struct bnxt_vnic_info *vnic = NULL;
1492 struct bnxt_filter_info *filter;
1493 int ret = 0;
1494
1495 bnxt_acquire_flow_lock(bp);
1496 ret = bnxt_flow_args_validate(attr, pattern, actions, error);
1497 if (ret != 0) {
1498 bnxt_release_flow_lock(bp);
1499 return ret;
1500 }
1501
1502 filter = bnxt_get_unused_filter(bp);
1503 if (filter == NULL) {
1504 PMD_DRV_LOG(ERR, "Not enough resources for a new flow.\n");
1505 bnxt_release_flow_lock(bp);
1506 return -ENOMEM;
1507 }
1508
1509 ret = bnxt_validate_and_parse_flow(dev, pattern, actions, attr,
1510 error, filter);
1511 if (ret)
1512 goto exit;
1513
1514 vnic = find_matching_vnic(bp, filter);
1515 if (vnic) {
1516 if (STAILQ_EMPTY(&vnic->filter)) {
1517 rte_free(vnic->fw_grp_ids);
1518 bnxt_hwrm_vnic_ctx_free(bp, vnic);
1519 bnxt_hwrm_vnic_free(bp, vnic);
1520 vnic->rx_queue_cnt = 0;
1521 PMD_DRV_LOG(DEBUG, "Free VNIC\n");
1522 }
1523 }
1524
1525 if (filter->filter_type == HWRM_CFA_EM_FILTER)
1526 bnxt_hwrm_clear_em_filter(bp, filter);
1527 else if (filter->filter_type == HWRM_CFA_NTUPLE_FILTER)
1528 bnxt_hwrm_clear_ntuple_filter(bp, filter);
1529 else
1530 bnxt_hwrm_clear_l2_filter(bp, filter);
1531
1532 exit:
1533 /* No need to hold on to this filter if we are just validating flow */
1534 bnxt_free_filter(bp, filter);
1535 bnxt_release_flow_lock(bp);
1536
1537 return ret;
1538 }
1539
1540 static void
bnxt_update_filter(struct bnxt * bp,struct bnxt_filter_info * old_filter,struct bnxt_filter_info * new_filter)1541 bnxt_update_filter(struct bnxt *bp, struct bnxt_filter_info *old_filter,
1542 struct bnxt_filter_info *new_filter)
1543 {
1544 /* Clear the new L2 filter that was created in the previous step in
1545 * bnxt_validate_and_parse_flow. For L2 filters, we will use the new
1546 * filter which points to the new destination queue and so we clear
1547 * the previous L2 filter. For ntuple filters, we are going to reuse
1548 * the old L2 filter and create new NTUPLE filter with this new
1549 * destination queue subsequently during bnxt_flow_create. So we
1550 * decrement the ref cnt of the L2 filter that would've been bumped
1551 * up previously in bnxt_validate_and_parse_flow as the old n-tuple
1552 * filter that was referencing it will be deleted now.
1553 */
1554 bnxt_hwrm_clear_l2_filter(bp, old_filter);
1555 if (new_filter->filter_type == HWRM_CFA_L2_FILTER) {
1556 bnxt_hwrm_set_l2_filter(bp, new_filter->dst_id, new_filter);
1557 } else {
1558 if (new_filter->filter_type == HWRM_CFA_EM_FILTER)
1559 bnxt_hwrm_clear_em_filter(bp, old_filter);
1560 if (new_filter->filter_type == HWRM_CFA_NTUPLE_FILTER)
1561 bnxt_hwrm_clear_ntuple_filter(bp, old_filter);
1562 }
1563 }
1564
1565 static int
bnxt_match_filter(struct bnxt * bp,struct bnxt_filter_info * nf)1566 bnxt_match_filter(struct bnxt *bp, struct bnxt_filter_info *nf)
1567 {
1568 struct bnxt_filter_info *mf;
1569 struct rte_flow *flow;
1570 int i;
1571
1572 for (i = bp->max_vnics - 1; i >= 0; i--) {
1573 struct bnxt_vnic_info *vnic = &bp->vnic_info[i];
1574
1575 if (vnic->fw_vnic_id == INVALID_VNIC_ID)
1576 continue;
1577
1578 STAILQ_FOREACH(flow, &vnic->flow_list, next) {
1579 mf = flow->filter;
1580
1581 if (mf->filter_type == nf->filter_type &&
1582 mf->flags == nf->flags &&
1583 mf->src_port == nf->src_port &&
1584 mf->src_port_mask == nf->src_port_mask &&
1585 mf->dst_port == nf->dst_port &&
1586 mf->dst_port_mask == nf->dst_port_mask &&
1587 mf->ip_protocol == nf->ip_protocol &&
1588 mf->ip_addr_type == nf->ip_addr_type &&
1589 mf->ethertype == nf->ethertype &&
1590 mf->vni == nf->vni &&
1591 mf->tunnel_type == nf->tunnel_type &&
1592 mf->l2_ovlan == nf->l2_ovlan &&
1593 mf->l2_ovlan_mask == nf->l2_ovlan_mask &&
1594 mf->l2_ivlan == nf->l2_ivlan &&
1595 mf->l2_ivlan_mask == nf->l2_ivlan_mask &&
1596 !memcmp(mf->l2_addr, nf->l2_addr,
1597 RTE_ETHER_ADDR_LEN) &&
1598 !memcmp(mf->l2_addr_mask, nf->l2_addr_mask,
1599 RTE_ETHER_ADDR_LEN) &&
1600 !memcmp(mf->src_macaddr, nf->src_macaddr,
1601 RTE_ETHER_ADDR_LEN) &&
1602 !memcmp(mf->dst_macaddr, nf->dst_macaddr,
1603 RTE_ETHER_ADDR_LEN) &&
1604 !memcmp(mf->src_ipaddr, nf->src_ipaddr,
1605 sizeof(nf->src_ipaddr)) &&
1606 !memcmp(mf->src_ipaddr_mask, nf->src_ipaddr_mask,
1607 sizeof(nf->src_ipaddr_mask)) &&
1608 !memcmp(mf->dst_ipaddr, nf->dst_ipaddr,
1609 sizeof(nf->dst_ipaddr)) &&
1610 !memcmp(mf->dst_ipaddr_mask, nf->dst_ipaddr_mask,
1611 sizeof(nf->dst_ipaddr_mask))) {
1612 if (mf->dst_id == nf->dst_id)
1613 return -EEXIST;
1614 /* Free the old filter, update flow
1615 * with new filter
1616 */
1617 bnxt_update_filter(bp, mf, nf);
1618 STAILQ_REMOVE(&vnic->filter, mf,
1619 bnxt_filter_info, next);
1620 STAILQ_INSERT_TAIL(&vnic->filter, nf, next);
1621 bnxt_free_filter(bp, mf);
1622 flow->filter = nf;
1623 return -EXDEV;
1624 }
1625 }
1626 }
1627 return 0;
1628 }
1629
1630 static void
bnxt_setup_flow_counter(struct bnxt * bp)1631 bnxt_setup_flow_counter(struct bnxt *bp)
1632 {
1633 if (bp->fw_cap & BNXT_FW_CAP_ADV_FLOW_COUNTERS &&
1634 !(bp->flags & BNXT_FLAG_FC_THREAD) && BNXT_FLOW_XSTATS_EN(bp)) {
1635 rte_eal_alarm_set(US_PER_S * BNXT_FC_TIMER,
1636 bnxt_flow_cnt_alarm_cb,
1637 (void *)bp);
1638 bp->flags |= BNXT_FLAG_FC_THREAD;
1639 }
1640 }
1641
bnxt_flow_cnt_alarm_cb(void * arg)1642 void bnxt_flow_cnt_alarm_cb(void *arg)
1643 {
1644 int rc = 0;
1645 struct bnxt *bp = arg;
1646
1647 if (!bp->flow_stat->rx_fc_out_tbl.va) {
1648 PMD_DRV_LOG(ERR, "bp->flow_stat->rx_fc_out_tbl.va is NULL?\n");
1649 bnxt_cancel_fc_thread(bp);
1650 return;
1651 }
1652
1653 if (!bp->flow_stat->flow_count) {
1654 bnxt_cancel_fc_thread(bp);
1655 return;
1656 }
1657
1658 if (!bp->eth_dev->data->dev_started) {
1659 bnxt_cancel_fc_thread(bp);
1660 return;
1661 }
1662
1663 rc = bnxt_flow_stats_req(bp);
1664 if (rc) {
1665 PMD_DRV_LOG(ERR, "Flow stat alarm not rescheduled.\n");
1666 return;
1667 }
1668
1669 rte_eal_alarm_set(US_PER_S * BNXT_FC_TIMER,
1670 bnxt_flow_cnt_alarm_cb,
1671 (void *)bp);
1672 }
1673
1674
1675 static struct rte_flow *
bnxt_flow_create(struct rte_eth_dev * dev,const struct rte_flow_attr * attr,const struct rte_flow_item pattern[],const struct rte_flow_action actions[],struct rte_flow_error * error)1676 bnxt_flow_create(struct rte_eth_dev *dev,
1677 const struct rte_flow_attr *attr,
1678 const struct rte_flow_item pattern[],
1679 const struct rte_flow_action actions[],
1680 struct rte_flow_error *error)
1681 {
1682 struct bnxt *bp = dev->data->dev_private;
1683 struct bnxt_vnic_info *vnic = NULL;
1684 struct bnxt_filter_info *filter;
1685 bool update_flow = false;
1686 struct rte_flow *flow;
1687 int ret = 0;
1688 uint32_t tun_type, flow_id;
1689
1690 if (BNXT_VF(bp) && !BNXT_VF_IS_TRUSTED(bp)) {
1691 rte_flow_error_set(error, EINVAL,
1692 RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1693 "Failed to create flow, Not a Trusted VF!");
1694 return NULL;
1695 }
1696
1697 if (!dev->data->dev_started) {
1698 rte_flow_error_set(error,
1699 EINVAL,
1700 RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
1701 NULL,
1702 "Device must be started");
1703 return NULL;
1704 }
1705
1706 flow = rte_zmalloc("bnxt_flow", sizeof(struct rte_flow), 0);
1707 if (!flow) {
1708 rte_flow_error_set(error, ENOMEM,
1709 RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1710 "Failed to allocate memory");
1711 return flow;
1712 }
1713
1714 bnxt_acquire_flow_lock(bp);
1715 ret = bnxt_flow_args_validate(attr, pattern, actions, error);
1716 if (ret != 0) {
1717 PMD_DRV_LOG(ERR, "Not a validate flow.\n");
1718 goto free_flow;
1719 }
1720
1721 filter = bnxt_get_unused_filter(bp);
1722 if (filter == NULL) {
1723 rte_flow_error_set(error, ENOSPC,
1724 RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1725 "Not enough resources for a new flow");
1726 goto free_flow;
1727 }
1728
1729 ret = bnxt_validate_and_parse_flow(dev, pattern, actions, attr,
1730 error, filter);
1731 if (ret != 0)
1732 goto free_filter;
1733
1734 ret = bnxt_match_filter(bp, filter);
1735 if (ret == -EEXIST) {
1736 PMD_DRV_LOG(DEBUG, "Flow already exists.\n");
1737 /* Clear the filter that was created as part of
1738 * validate_and_parse_flow() above
1739 */
1740 bnxt_hwrm_clear_l2_filter(bp, filter);
1741 goto free_filter;
1742 } else if (ret == -EXDEV) {
1743 PMD_DRV_LOG(DEBUG, "Flow with same pattern exists\n");
1744 PMD_DRV_LOG(DEBUG, "Updating with different destination\n");
1745 update_flow = true;
1746 }
1747
1748 /* If tunnel redirection to a VF/PF is specified then only tunnel_type
1749 * is set and enable is set to the tunnel type. Issue hwrm cmd directly
1750 * in such a case.
1751 */
1752 if (filter->filter_type == HWRM_CFA_TUNNEL_REDIRECT_FILTER &&
1753 filter->enables == filter->tunnel_type) {
1754 ret = bnxt_hwrm_tunnel_redirect_query(bp, &tun_type);
1755 if (ret) {
1756 rte_flow_error_set(error, -ret,
1757 RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1758 "Unable to query tunnel to VF");
1759 goto free_filter;
1760 }
1761 if (tun_type == (1U << filter->tunnel_type)) {
1762 ret =
1763 bnxt_hwrm_tunnel_redirect_free(bp,
1764 filter->tunnel_type);
1765 if (ret) {
1766 PMD_DRV_LOG(ERR,
1767 "Unable to free existing tunnel\n");
1768 rte_flow_error_set(error, -ret,
1769 RTE_FLOW_ERROR_TYPE_HANDLE,
1770 NULL,
1771 "Unable to free preexisting "
1772 "tunnel on VF");
1773 goto free_filter;
1774 }
1775 }
1776 ret = bnxt_hwrm_tunnel_redirect(bp, filter->tunnel_type);
1777 if (ret) {
1778 rte_flow_error_set(error, -ret,
1779 RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1780 "Unable to redirect tunnel to VF");
1781 goto free_filter;
1782 }
1783 vnic = &bp->vnic_info[0];
1784 goto done;
1785 }
1786
1787 if (filter->filter_type == HWRM_CFA_EM_FILTER) {
1788 filter->enables |=
1789 HWRM_CFA_EM_FLOW_ALLOC_INPUT_ENABLES_L2_FILTER_ID;
1790 ret = bnxt_hwrm_set_em_filter(bp, filter->dst_id, filter);
1791 if (ret != 0) {
1792 rte_flow_error_set(error, -ret,
1793 RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1794 "Failed to create EM filter");
1795 goto free_filter;
1796 }
1797 }
1798
1799 if (filter->filter_type == HWRM_CFA_NTUPLE_FILTER) {
1800 filter->enables |=
1801 HWRM_CFA_NTUPLE_FILTER_ALLOC_INPUT_ENABLES_L2_FILTER_ID;
1802 ret = bnxt_hwrm_set_ntuple_filter(bp, filter->dst_id, filter);
1803 if (ret != 0) {
1804 rte_flow_error_set(error, -ret,
1805 RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1806 "Failed to create ntuple filter");
1807 goto free_filter;
1808 }
1809 }
1810
1811 vnic = find_matching_vnic(bp, filter);
1812 done:
1813 if (!ret || update_flow) {
1814 flow->filter = filter;
1815 flow->vnic = vnic;
1816 if (update_flow) {
1817 ret = -EXDEV;
1818 goto free_flow;
1819 }
1820
1821 if (filter->valid_flags & BNXT_FLOW_MARK_FLAG) {
1822 PMD_DRV_LOG(DEBUG,
1823 "Mark action: mark id 0x%x, flow id 0x%x\n",
1824 filter->mark, filter->flow_id);
1825
1826 /* TCAM and EM should be 16-bit only.
1827 * Other modes not supported.
1828 */
1829 flow_id = filter->flow_id & BNXT_FLOW_ID_MASK;
1830 if (bp->mark_table[flow_id].valid) {
1831 rte_flow_error_set(error, EEXIST,
1832 RTE_FLOW_ERROR_TYPE_HANDLE,
1833 NULL,
1834 "Flow with mark id exists");
1835 bnxt_clear_one_vnic_filter(bp, filter);
1836 goto free_filter;
1837 }
1838 bp->mark_table[flow_id].valid = true;
1839 bp->mark_table[flow_id].mark_id = filter->mark;
1840 }
1841
1842 STAILQ_INSERT_TAIL(&vnic->filter, filter, next);
1843 STAILQ_INSERT_TAIL(&vnic->flow_list, flow, next);
1844
1845 if (BNXT_FLOW_XSTATS_EN(bp))
1846 bp->flow_stat->flow_count++;
1847 bnxt_release_flow_lock(bp);
1848 bnxt_setup_flow_counter(bp);
1849 PMD_DRV_LOG(DEBUG, "Successfully created flow.\n");
1850 return flow;
1851 }
1852
1853 free_filter:
1854 bnxt_free_filter(bp, filter);
1855 free_flow:
1856 if (ret == -EEXIST)
1857 rte_flow_error_set(error, ret,
1858 RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1859 "Matching Flow exists.");
1860 else if (ret == -EXDEV)
1861 rte_flow_error_set(error, 0,
1862 RTE_FLOW_ERROR_TYPE_NONE, NULL,
1863 "Flow with pattern exists, updating destination queue");
1864 else if (!rte_errno)
1865 rte_flow_error_set(error, -ret,
1866 RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1867 "Failed to create flow.");
1868 rte_free(flow);
1869 flow = NULL;
1870 bnxt_release_flow_lock(bp);
1871 return flow;
1872 }
1873
bnxt_handle_tunnel_redirect_destroy(struct bnxt * bp,struct bnxt_filter_info * filter,struct rte_flow_error * error)1874 static int bnxt_handle_tunnel_redirect_destroy(struct bnxt *bp,
1875 struct bnxt_filter_info *filter,
1876 struct rte_flow_error *error)
1877 {
1878 uint16_t tun_dst_fid;
1879 uint32_t tun_type;
1880 int ret = 0;
1881
1882 ret = bnxt_hwrm_tunnel_redirect_query(bp, &tun_type);
1883 if (ret) {
1884 rte_flow_error_set(error, -ret,
1885 RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1886 "Unable to query tunnel to VF");
1887 return ret;
1888 }
1889 if (tun_type == (1U << filter->tunnel_type)) {
1890 ret = bnxt_hwrm_tunnel_redirect_info(bp, filter->tunnel_type,
1891 &tun_dst_fid);
1892 if (ret) {
1893 rte_flow_error_set(error, -ret,
1894 RTE_FLOW_ERROR_TYPE_HANDLE,
1895 NULL,
1896 "tunnel_redirect info cmd fail");
1897 return ret;
1898 }
1899 PMD_DRV_LOG(INFO, "Pre-existing tunnel fid = %x vf->fid = %x\n",
1900 tun_dst_fid + bp->first_vf_id, bp->fw_fid);
1901
1902 /* Tunnel doesn't belong to this VF, so don't send HWRM
1903 * cmd, just delete the flow from driver
1904 */
1905 if (bp->fw_fid != (tun_dst_fid + bp->first_vf_id))
1906 PMD_DRV_LOG(ERR,
1907 "Tunnel does not belong to this VF, skip hwrm_tunnel_redirect_free\n");
1908 else
1909 ret = bnxt_hwrm_tunnel_redirect_free(bp,
1910 filter->tunnel_type);
1911 }
1912 return ret;
1913 }
1914
1915 static int
_bnxt_flow_destroy(struct bnxt * bp,struct rte_flow * flow,struct rte_flow_error * error)1916 _bnxt_flow_destroy(struct bnxt *bp,
1917 struct rte_flow *flow,
1918 struct rte_flow_error *error)
1919 {
1920 struct bnxt_filter_info *filter;
1921 struct bnxt_vnic_info *vnic;
1922 int ret = 0;
1923 uint32_t flow_id;
1924
1925 filter = flow->filter;
1926 vnic = flow->vnic;
1927
1928 if (filter->filter_type == HWRM_CFA_TUNNEL_REDIRECT_FILTER &&
1929 filter->enables == filter->tunnel_type) {
1930 ret = bnxt_handle_tunnel_redirect_destroy(bp, filter, error);
1931 if (!ret)
1932 goto done;
1933 else
1934 return ret;
1935 }
1936
1937 ret = bnxt_match_filter(bp, filter);
1938 if (ret == 0)
1939 PMD_DRV_LOG(ERR, "Could not find matching flow\n");
1940
1941 if (filter->valid_flags & BNXT_FLOW_MARK_FLAG) {
1942 flow_id = filter->flow_id & BNXT_FLOW_ID_MASK;
1943 memset(&bp->mark_table[flow_id], 0,
1944 sizeof(bp->mark_table[flow_id]));
1945 filter->flow_id = 0;
1946 }
1947
1948 ret = bnxt_clear_one_vnic_filter(bp, filter);
1949
1950 done:
1951 if (!ret) {
1952 /* If it is a L2 drop filter, when the filter is created,
1953 * the FW updates the BC/MC records.
1954 * Once this filter is removed, issue the set_rx_mask command
1955 * to reset the BC/MC records in the HW to the settings
1956 * before the drop counter is created.
1957 */
1958 if (filter->valid_flags & BNXT_FLOW_L2_DROP_FLAG)
1959 bnxt_set_rx_mask_no_vlan(bp, &bp->vnic_info[0]);
1960
1961 STAILQ_REMOVE(&vnic->filter, filter, bnxt_filter_info, next);
1962 bnxt_free_filter(bp, filter);
1963 STAILQ_REMOVE(&vnic->flow_list, flow, rte_flow, next);
1964 rte_free(flow);
1965 if (BNXT_FLOW_XSTATS_EN(bp))
1966 bp->flow_stat->flow_count--;
1967
1968 /* If this was the last flow associated with this vnic,
1969 * switch the queue back to RSS pool.
1970 */
1971 if (vnic && !vnic->func_default &&
1972 STAILQ_EMPTY(&vnic->flow_list)) {
1973 rte_free(vnic->fw_grp_ids);
1974 if (vnic->rx_queue_cnt > 1)
1975 bnxt_hwrm_vnic_ctx_free(bp, vnic);
1976
1977 bnxt_hwrm_vnic_free(bp, vnic);
1978 vnic->rx_queue_cnt = 0;
1979 }
1980 } else {
1981 rte_flow_error_set(error, -ret,
1982 RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1983 "Failed to destroy flow.");
1984 }
1985
1986 return ret;
1987 }
1988
1989 static int
bnxt_flow_destroy(struct rte_eth_dev * dev,struct rte_flow * flow,struct rte_flow_error * error)1990 bnxt_flow_destroy(struct rte_eth_dev *dev,
1991 struct rte_flow *flow,
1992 struct rte_flow_error *error)
1993 {
1994 struct bnxt *bp = dev->data->dev_private;
1995 int ret = 0;
1996
1997 bnxt_acquire_flow_lock(bp);
1998 if (!flow) {
1999 rte_flow_error_set(error, EINVAL,
2000 RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
2001 "Invalid flow: failed to destroy flow.");
2002 bnxt_release_flow_lock(bp);
2003 return -EINVAL;
2004 }
2005
2006 if (!flow->filter) {
2007 rte_flow_error_set(error, EINVAL,
2008 RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
2009 "Invalid flow: failed to destroy flow.");
2010 bnxt_release_flow_lock(bp);
2011 return -EINVAL;
2012 }
2013 ret = _bnxt_flow_destroy(bp, flow, error);
2014 bnxt_release_flow_lock(bp);
2015
2016 return ret;
2017 }
2018
bnxt_cancel_fc_thread(struct bnxt * bp)2019 void bnxt_cancel_fc_thread(struct bnxt *bp)
2020 {
2021 bp->flags &= ~BNXT_FLAG_FC_THREAD;
2022 rte_eal_alarm_cancel(bnxt_flow_cnt_alarm_cb, (void *)bp);
2023 }
2024
2025 static int
bnxt_flow_flush(struct rte_eth_dev * dev,struct rte_flow_error * error)2026 bnxt_flow_flush(struct rte_eth_dev *dev, struct rte_flow_error *error)
2027 {
2028 struct bnxt *bp = dev->data->dev_private;
2029 struct bnxt_vnic_info *vnic;
2030 struct rte_flow *flow;
2031 unsigned int i;
2032 int ret = 0;
2033
2034 bnxt_acquire_flow_lock(bp);
2035 for (i = 0; i < bp->max_vnics; i++) {
2036 vnic = &bp->vnic_info[i];
2037 if (vnic && vnic->fw_vnic_id == INVALID_VNIC_ID)
2038 continue;
2039
2040 while (!STAILQ_EMPTY(&vnic->flow_list)) {
2041 flow = STAILQ_FIRST(&vnic->flow_list);
2042
2043 if (!flow->filter)
2044 continue;
2045
2046 ret = _bnxt_flow_destroy(bp, flow, error);
2047 if (ret)
2048 break;
2049 }
2050 }
2051
2052 bnxt_cancel_fc_thread(bp);
2053 bnxt_release_flow_lock(bp);
2054
2055 return ret;
2056 }
2057
2058 const struct rte_flow_ops bnxt_flow_ops = {
2059 .validate = bnxt_flow_validate,
2060 .create = bnxt_flow_create,
2061 .destroy = bnxt_flow_destroy,
2062 .flush = bnxt_flow_flush,
2063 };
2064