1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2018 Chelsio Communications.
6 #include "cxgbe_flow.h"
8 #define __CXGBE_FILL_FS(__v, __m, fs, elem, e) \
10 if (!((fs)->val.elem || (fs)->mask.elem)) { \
11 (fs)->val.elem = (__v); \
12 (fs)->mask.elem = (__m); \
14 return rte_flow_error_set(e, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, \
15 NULL, "a filter can be specified" \
20 #define __CXGBE_FILL_FS_MEMCPY(__v, __m, fs, elem) \
22 memcpy(&(fs)->val.elem, &(__v), sizeof(__v)); \
23 memcpy(&(fs)->mask.elem, &(__m), sizeof(__m)); \
26 #define CXGBE_FILL_FS(v, m, elem) \
27 __CXGBE_FILL_FS(v, m, fs, elem, e)
29 #define CXGBE_FILL_FS_MEMCPY(v, m, elem) \
30 __CXGBE_FILL_FS_MEMCPY(v, m, fs, elem)
33 cxgbe_validate_item(const struct rte_flow_item *i, struct rte_flow_error *e)
35 /* rte_flow specification does not allow it. */
36 if (!i->spec && (i->mask || i->last))
37 return rte_flow_error_set(e, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM,
38 i, "last or mask given without spec");
40 * We don't support it.
41 * Although, we can support values in last as 0's or last == spec.
42 * But this will not provide user with any additional functionality
43 * and will only increase the complexity for us.
46 return rte_flow_error_set(e, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM,
47 i, "last is not supported by chelsio pmd");
52 cxgbe_fill_filter_region(struct adapter *adap,
53 struct ch_filter_specification *fs)
55 struct tp_params *tp = &adap->params.tp;
56 u64 hash_filter_mask = tp->hash_filter_mask;
61 if (!is_hashfilter(adap))
65 uint8_t biton[16] = {0xff, 0xff, 0xff, 0xff,
66 0xff, 0xff, 0xff, 0xff,
67 0xff, 0xff, 0xff, 0xff,
68 0xff, 0xff, 0xff, 0xff};
69 uint8_t bitoff[16] = {0};
71 if (!memcmp(fs->val.lip, bitoff, sizeof(bitoff)) ||
72 !memcmp(fs->val.fip, bitoff, sizeof(bitoff)) ||
73 memcmp(fs->mask.lip, biton, sizeof(biton)) ||
74 memcmp(fs->mask.fip, biton, sizeof(biton)))
77 uint32_t biton = 0xffffffff;
78 uint32_t bitoff = 0x0U;
80 if (!memcmp(fs->val.lip, &bitoff, sizeof(bitoff)) ||
81 !memcmp(fs->val.fip, &bitoff, sizeof(bitoff)) ||
82 memcmp(fs->mask.lip, &biton, sizeof(biton)) ||
83 memcmp(fs->mask.fip, &biton, sizeof(biton)))
87 if (!fs->val.lport || fs->mask.lport != 0xffff)
89 if (!fs->val.fport || fs->mask.fport != 0xffff)
92 if (tp->protocol_shift >= 0)
93 ntuple_mask |= (u64)fs->mask.proto << tp->protocol_shift;
94 if (tp->ethertype_shift >= 0)
95 ntuple_mask |= (u64)fs->mask.ethtype << tp->ethertype_shift;
96 if (tp->port_shift >= 0)
97 ntuple_mask |= (u64)fs->mask.iport << tp->port_shift;
99 if (ntuple_mask != hash_filter_mask)
102 fs->cap = 1; /* use hash region */
106 ch_rte_parsetype_port(const void *dmask, const struct rte_flow_item *item,
107 struct ch_filter_specification *fs,
108 struct rte_flow_error *e)
110 const struct rte_flow_item_phy_port *val = item->spec;
111 const struct rte_flow_item_phy_port *umask = item->mask;
112 const struct rte_flow_item_phy_port *mask;
114 mask = umask ? umask : (const struct rte_flow_item_phy_port *)dmask;
116 if (val->index > 0x7)
117 return rte_flow_error_set(e, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM,
119 "port index upto 0x7 is supported");
121 CXGBE_FILL_FS(val->index, mask->index, iport);
127 ch_rte_parsetype_udp(const void *dmask, const struct rte_flow_item *item,
128 struct ch_filter_specification *fs,
129 struct rte_flow_error *e)
131 const struct rte_flow_item_udp *val = item->spec;
132 const struct rte_flow_item_udp *umask = item->mask;
133 const struct rte_flow_item_udp *mask;
135 mask = umask ? umask : (const struct rte_flow_item_udp *)dmask;
137 if (mask->hdr.dgram_len || mask->hdr.dgram_cksum)
138 return rte_flow_error_set(e, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM,
140 "udp: only src/dst port supported");
142 CXGBE_FILL_FS(IPPROTO_UDP, 0xff, proto);
145 CXGBE_FILL_FS(be16_to_cpu(val->hdr.src_port),
146 be16_to_cpu(mask->hdr.src_port), fport);
147 CXGBE_FILL_FS(be16_to_cpu(val->hdr.dst_port),
148 be16_to_cpu(mask->hdr.dst_port), lport);
153 ch_rte_parsetype_tcp(const void *dmask, const struct rte_flow_item *item,
154 struct ch_filter_specification *fs,
155 struct rte_flow_error *e)
157 const struct rte_flow_item_tcp *val = item->spec;
158 const struct rte_flow_item_tcp *umask = item->mask;
159 const struct rte_flow_item_tcp *mask;
161 mask = umask ? umask : (const struct rte_flow_item_tcp *)dmask;
163 if (mask->hdr.sent_seq || mask->hdr.recv_ack || mask->hdr.data_off ||
164 mask->hdr.tcp_flags || mask->hdr.rx_win || mask->hdr.cksum ||
166 return rte_flow_error_set(e, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM,
168 "tcp: only src/dst port supported");
170 CXGBE_FILL_FS(IPPROTO_TCP, 0xff, proto);
173 CXGBE_FILL_FS(be16_to_cpu(val->hdr.src_port),
174 be16_to_cpu(mask->hdr.src_port), fport);
175 CXGBE_FILL_FS(be16_to_cpu(val->hdr.dst_port),
176 be16_to_cpu(mask->hdr.dst_port), lport);
181 ch_rte_parsetype_ipv4(const void *dmask, const struct rte_flow_item *item,
182 struct ch_filter_specification *fs,
183 struct rte_flow_error *e)
185 const struct rte_flow_item_ipv4 *val = item->spec;
186 const struct rte_flow_item_ipv4 *umask = item->mask;
187 const struct rte_flow_item_ipv4 *mask;
189 mask = umask ? umask : (const struct rte_flow_item_ipv4 *)dmask;
191 if (mask->hdr.time_to_live || mask->hdr.type_of_service)
192 return rte_flow_error_set(e, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM,
193 item, "ttl/tos are not supported");
195 fs->type = FILTER_TYPE_IPV4;
196 CXGBE_FILL_FS(ETHER_TYPE_IPv4, 0xffff, ethtype);
198 return 0; /* ipv4 wild card */
200 CXGBE_FILL_FS(val->hdr.next_proto_id, mask->hdr.next_proto_id, proto);
201 CXGBE_FILL_FS_MEMCPY(val->hdr.dst_addr, mask->hdr.dst_addr, lip);
202 CXGBE_FILL_FS_MEMCPY(val->hdr.src_addr, mask->hdr.src_addr, fip);
208 ch_rte_parsetype_ipv6(const void *dmask, const struct rte_flow_item *item,
209 struct ch_filter_specification *fs,
210 struct rte_flow_error *e)
212 const struct rte_flow_item_ipv6 *val = item->spec;
213 const struct rte_flow_item_ipv6 *umask = item->mask;
214 const struct rte_flow_item_ipv6 *mask;
216 mask = umask ? umask : (const struct rte_flow_item_ipv6 *)dmask;
218 if (mask->hdr.vtc_flow ||
219 mask->hdr.payload_len || mask->hdr.hop_limits)
220 return rte_flow_error_set(e, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM,
222 "tc/flow/hop are not supported");
224 fs->type = FILTER_TYPE_IPV6;
225 CXGBE_FILL_FS(ETHER_TYPE_IPv6, 0xffff, ethtype);
227 return 0; /* ipv6 wild card */
229 CXGBE_FILL_FS(val->hdr.proto, mask->hdr.proto, proto);
230 CXGBE_FILL_FS_MEMCPY(val->hdr.dst_addr, mask->hdr.dst_addr, lip);
231 CXGBE_FILL_FS_MEMCPY(val->hdr.src_addr, mask->hdr.src_addr, fip);
237 cxgbe_rtef_parse_attr(struct rte_flow *flow, const struct rte_flow_attr *attr,
238 struct rte_flow_error *e)
241 return rte_flow_error_set(e, ENOTSUP, RTE_FLOW_ERROR_TYPE_ATTR,
242 attr, "attribute:<egress> is"
245 return rte_flow_error_set(e, ENOTSUP, RTE_FLOW_ERROR_TYPE_ATTR,
246 attr, "group parameter is"
249 flow->fidx = attr->priority ? attr->priority - 1 : FILTER_ID_MAX;
254 static inline int check_rxq(struct rte_eth_dev *dev, uint16_t rxq)
256 struct port_info *pi = ethdev2pinfo(dev);
258 if (rxq > pi->n_rx_qsets)
263 static int cxgbe_validate_fidxondel(struct filter_entry *f, unsigned int fidx)
265 struct adapter *adap = ethdev2adap(f->dev);
266 struct ch_filter_specification fs = f->fs;
268 if (fidx >= adap->tids.nftids) {
269 dev_err(adap, "invalid flow index %d.\n", fidx);
272 if (!is_filter_set(&adap->tids, fidx, fs.type)) {
273 dev_err(adap, "Already free fidx:%d f:%p\n", fidx, f);
281 cxgbe_validate_fidxonadd(struct ch_filter_specification *fs,
282 struct adapter *adap, unsigned int fidx)
284 if (is_filter_set(&adap->tids, fidx, fs->type)) {
285 dev_err(adap, "filter index: %d is busy.\n", fidx);
288 if (fidx >= adap->tids.nftids) {
289 dev_err(adap, "filter index (%u) >= max(%u)\n",
290 fidx, adap->tids.nftids);
298 cxgbe_verify_fidx(struct rte_flow *flow, unsigned int fidx, uint8_t del)
301 return 0; /* Hash filters */
302 return del ? cxgbe_validate_fidxondel(flow->f, fidx) :
303 cxgbe_validate_fidxonadd(&flow->fs,
304 ethdev2adap(flow->dev), fidx);
307 static int cxgbe_get_fidx(struct rte_flow *flow, unsigned int *fidx)
309 struct ch_filter_specification *fs = &flow->fs;
310 struct adapter *adap = ethdev2adap(flow->dev);
312 /* For tcam get the next available slot, if default value specified */
313 if (flow->fidx == FILTER_ID_MAX) {
316 idx = cxgbe_alloc_ftid(adap, fs->type);
318 dev_err(adap, "unable to get a filter index in tcam\n");
321 *fidx = (unsigned int)idx;
330 cxgbe_rtef_parse_actions(struct rte_flow *flow,
331 const struct rte_flow_action action[],
332 struct rte_flow_error *e)
334 struct ch_filter_specification *fs = &flow->fs;
335 const struct rte_flow_action_queue *q;
336 const struct rte_flow_action *a;
339 for (a = action; a->type != RTE_FLOW_ACTION_TYPE_END; a++) {
341 case RTE_FLOW_ACTION_TYPE_VOID:
343 case RTE_FLOW_ACTION_TYPE_DROP:
345 return rte_flow_error_set(e, EINVAL,
346 RTE_FLOW_ERROR_TYPE_ACTION, a,
347 "specify only 1 pass/drop");
348 fs->action = FILTER_DROP;
350 case RTE_FLOW_ACTION_TYPE_QUEUE:
351 q = (const struct rte_flow_action_queue *)a->conf;
353 return rte_flow_error_set(e, EINVAL,
354 RTE_FLOW_ERROR_TYPE_ACTION, q,
355 "specify rx queue index");
356 if (check_rxq(flow->dev, q->index))
357 return rte_flow_error_set(e, EINVAL,
358 RTE_FLOW_ERROR_TYPE_ACTION, q,
361 return rte_flow_error_set(e, EINVAL,
362 RTE_FLOW_ERROR_TYPE_ACTION, a,
363 "specify only 1 pass/drop");
364 fs->action = FILTER_PASS;
368 case RTE_FLOW_ACTION_TYPE_COUNT:
372 /* Not supported action : return error */
373 return rte_flow_error_set(e, ENOTSUP,
374 RTE_FLOW_ERROR_TYPE_ACTION,
375 a, "Action not supported");
382 struct chrte_fparse parseitem[] = {
383 [RTE_FLOW_ITEM_TYPE_PHY_PORT] = {
384 .fptr = ch_rte_parsetype_port,
385 .dmask = &(const struct rte_flow_item_phy_port){
390 [RTE_FLOW_ITEM_TYPE_IPV4] = {
391 .fptr = ch_rte_parsetype_ipv4,
392 .dmask = &rte_flow_item_ipv4_mask,
395 [RTE_FLOW_ITEM_TYPE_IPV6] = {
396 .fptr = ch_rte_parsetype_ipv6,
397 .dmask = &rte_flow_item_ipv6_mask,
400 [RTE_FLOW_ITEM_TYPE_UDP] = {
401 .fptr = ch_rte_parsetype_udp,
402 .dmask = &rte_flow_item_udp_mask,
405 [RTE_FLOW_ITEM_TYPE_TCP] = {
406 .fptr = ch_rte_parsetype_tcp,
407 .dmask = &rte_flow_item_tcp_mask,
412 cxgbe_rtef_parse_items(struct rte_flow *flow,
413 const struct rte_flow_item items[],
414 struct rte_flow_error *e)
416 struct adapter *adap = ethdev2adap(flow->dev);
417 const struct rte_flow_item *i;
418 char repeat[ARRAY_SIZE(parseitem)] = {0};
420 for (i = items; i->type != RTE_FLOW_ITEM_TYPE_END; i++) {
421 struct chrte_fparse *idx = &flow->item_parser[i->type];
424 if (i->type > ARRAY_SIZE(parseitem))
425 return rte_flow_error_set(e, ENOTSUP,
426 RTE_FLOW_ERROR_TYPE_ITEM,
427 i, "Item not supported");
430 case RTE_FLOW_ITEM_TYPE_VOID:
433 /* check if item is repeated */
435 return rte_flow_error_set(e, ENOTSUP,
436 RTE_FLOW_ERROR_TYPE_ITEM, i,
437 "parse items cannot be repeated (except void)");
440 /* validate the item */
441 ret = cxgbe_validate_item(i, e);
445 if (!idx || !idx->fptr) {
446 return rte_flow_error_set(e, ENOTSUP,
447 RTE_FLOW_ERROR_TYPE_ITEM, i,
448 "Item not supported");
450 ret = idx->fptr(idx->dmask, i, &flow->fs, e);
457 cxgbe_fill_filter_region(adap, &flow->fs);
463 cxgbe_flow_parse(struct rte_flow *flow,
464 const struct rte_flow_attr *attr,
465 const struct rte_flow_item item[],
466 const struct rte_flow_action action[],
467 struct rte_flow_error *e)
471 /* parse user request into ch_filter_specification */
472 ret = cxgbe_rtef_parse_attr(flow, attr, e);
475 ret = cxgbe_rtef_parse_items(flow, item, e);
478 return cxgbe_rtef_parse_actions(flow, action, e);
481 static int __cxgbe_flow_create(struct rte_eth_dev *dev, struct rte_flow *flow)
483 struct ch_filter_specification *fs = &flow->fs;
484 struct adapter *adap = ethdev2adap(dev);
485 struct tid_info *t = &adap->tids;
486 struct filter_ctx ctx;
490 if (cxgbe_get_fidx(flow, &fidx))
492 if (cxgbe_verify_fidx(flow, fidx, 0))
495 t4_init_completion(&ctx.completion);
496 /* go create the filter */
497 err = cxgbe_set_filter(dev, fidx, fs, &ctx);
499 dev_err(adap, "Error %d while creating filter.\n", err);
503 /* Poll the FW for reply */
504 err = cxgbe_poll_for_completion(&adap->sge.fw_evtq,
509 dev_err(adap, "Filter set operation timed out (%d)\n", err);
513 dev_err(adap, "Hardware error %d while creating the filter.\n",
518 if (fs->cap) { /* to destroy the filter */
519 flow->fidx = ctx.tid;
520 flow->f = lookup_tid(t, ctx.tid);
523 flow->f = &adap->tids.ftid_tab[fidx];
529 static struct rte_flow *
530 cxgbe_flow_create(struct rte_eth_dev *dev,
531 const struct rte_flow_attr *attr,
532 const struct rte_flow_item item[],
533 const struct rte_flow_action action[],
534 struct rte_flow_error *e)
536 struct rte_flow *flow;
539 flow = t4_os_alloc(sizeof(struct rte_flow));
541 rte_flow_error_set(e, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE,
542 NULL, "Unable to allocate memory for"
547 flow->item_parser = parseitem;
550 if (cxgbe_flow_parse(flow, attr, item, action, e)) {
555 /* go, interact with cxgbe_filter */
556 ret = __cxgbe_flow_create(dev, flow);
558 rte_flow_error_set(e, ret, RTE_FLOW_ERROR_TYPE_HANDLE,
559 NULL, "Unable to create flow rule");
564 flow->f->private = flow; /* Will be used during flush */
569 static int __cxgbe_flow_destroy(struct rte_eth_dev *dev, struct rte_flow *flow)
571 struct adapter *adap = ethdev2adap(dev);
572 struct filter_entry *f = flow->f;
573 struct ch_filter_specification *fs;
574 struct filter_ctx ctx;
578 if (cxgbe_verify_fidx(flow, flow->fidx, 1))
581 t4_init_completion(&ctx.completion);
582 err = cxgbe_del_filter(dev, flow->fidx, fs, &ctx);
584 dev_err(adap, "Error %d while deleting filter.\n", err);
588 /* Poll the FW for reply */
589 err = cxgbe_poll_for_completion(&adap->sge.fw_evtq,
594 dev_err(adap, "Filter delete operation timed out (%d)\n", err);
598 dev_err(adap, "Hardware error %d while deleting the filter.\n",
607 cxgbe_flow_destroy(struct rte_eth_dev *dev, struct rte_flow *flow,
608 struct rte_flow_error *e)
612 ret = __cxgbe_flow_destroy(dev, flow);
614 return rte_flow_error_set(e, ret, RTE_FLOW_ERROR_TYPE_HANDLE,
615 flow, "error destroying filter.");
620 static int __cxgbe_flow_query(struct rte_flow *flow, u64 *count,
623 struct adapter *adap = ethdev2adap(flow->dev);
624 struct ch_filter_specification fs = flow->f->fs;
625 unsigned int fidx = flow->fidx;
628 ret = cxgbe_get_filter_count(adap, fidx, count, fs.cap, 0);
631 return cxgbe_get_filter_count(adap, fidx, byte_count, fs.cap, 1);
635 cxgbe_flow_query(struct rte_eth_dev *dev, struct rte_flow *flow,
636 const struct rte_flow_action *action, void *data,
637 struct rte_flow_error *e)
639 struct ch_filter_specification fs;
640 struct rte_flow_query_count *c;
641 struct filter_entry *f;
649 if (action->type != RTE_FLOW_ACTION_TYPE_COUNT)
650 return rte_flow_error_set(e, ENOTSUP,
651 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
652 "only count supported for query");
655 * This is a valid operation, Since we are allowed to do chelsio
656 * specific operations in rte side of our code but not vise-versa
658 * So, fs can be queried/modified here BUT rte_flow_query_count
659 * cannot be worked on by the lower layer since we want to maintain
660 * it as rte_flow agnostic.
663 return rte_flow_error_set(e, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION,
664 &fs, "filter hit counters were not"
665 " enabled during filter creation");
667 c = (struct rte_flow_query_count *)data;
668 ret = __cxgbe_flow_query(flow, &c->hits, &c->bytes);
670 return rte_flow_error_set(e, -ret, RTE_FLOW_ERROR_TYPE_ACTION,
671 f, "cxgbe pmd failed to"
674 /* Query was successful */
678 return 0; /* success / partial_success */
682 cxgbe_flow_validate(struct rte_eth_dev *dev,
683 const struct rte_flow_attr *attr,
684 const struct rte_flow_item item[],
685 const struct rte_flow_action action[],
686 struct rte_flow_error *e)
688 struct adapter *adap = ethdev2adap(dev);
689 struct rte_flow *flow;
693 flow = t4_os_alloc(sizeof(struct rte_flow));
695 return rte_flow_error_set(e, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE,
697 "Unable to allocate memory for filter_entry");
699 flow->item_parser = parseitem;
702 ret = cxgbe_flow_parse(flow, attr, item, action, e);
708 if (validate_filter(adap, &flow->fs)) {
710 return rte_flow_error_set(e, EINVAL, RTE_FLOW_ERROR_TYPE_HANDLE,
712 "validation failed. Check f/w config file.");
715 if (cxgbe_get_fidx(flow, &fidx)) {
717 return rte_flow_error_set(e, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE,
718 NULL, "no memory in tcam.");
721 if (cxgbe_verify_fidx(flow, fidx, 0)) {
723 return rte_flow_error_set(e, EINVAL, RTE_FLOW_ERROR_TYPE_HANDLE,
724 NULL, "validation failed");
732 * @ret : > 0 filter destroyed succsesfully
733 * < 0 error destroying filter
734 * == 1 filter not active / not found
737 cxgbe_check_n_destroy(struct filter_entry *f, struct rte_eth_dev *dev,
738 struct rte_flow_error *e)
740 if (f && (f->valid || f->pending) &&
741 f->dev == dev && /* Only if user has asked for this port */
742 f->private) /* We (rte_flow) created this filter */
743 return cxgbe_flow_destroy(dev, (struct rte_flow *)f->private,
748 static int cxgbe_flow_flush(struct rte_eth_dev *dev, struct rte_flow_error *e)
750 struct adapter *adap = ethdev2adap(dev);
754 if (adap->tids.ftid_tab) {
755 struct filter_entry *f = &adap->tids.ftid_tab[0];
757 for (i = 0; i < adap->tids.nftids; i++, f++) {
758 ret = cxgbe_check_n_destroy(f, dev, e);
764 if (is_hashfilter(adap) && adap->tids.tid_tab) {
765 struct filter_entry *f;
767 for (i = adap->tids.hash_base; i <= adap->tids.ntids; i++) {
768 f = (struct filter_entry *)adap->tids.tid_tab[i];
770 ret = cxgbe_check_n_destroy(f, dev, e);
777 return ret >= 0 ? 0 : ret;
780 static const struct rte_flow_ops cxgbe_flow_ops = {
781 .validate = cxgbe_flow_validate,
782 .create = cxgbe_flow_create,
783 .destroy = cxgbe_flow_destroy,
784 .flush = cxgbe_flow_flush,
785 .query = cxgbe_flow_query,
790 cxgbe_dev_filter_ctrl(struct rte_eth_dev *dev,
791 enum rte_filter_type filter_type,
792 enum rte_filter_op filter_op,
798 switch (filter_type) {
799 case RTE_ETH_FILTER_GENERIC:
800 if (filter_op != RTE_ETH_FILTER_GET)
802 *(const void **)arg = &cxgbe_flow_ops;