1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright 2018 6WIND S.A.
3 * Copyright 2018 Mellanox Technologies, Ltd
8 #include <libmnl/libmnl.h>
9 #include <linux/gen_stats.h>
10 #include <linux/if_ether.h>
11 #include <linux/netlink.h>
12 #include <linux/pkt_cls.h>
13 #include <linux/pkt_sched.h>
14 #include <linux/rtnetlink.h>
15 #include <linux/tc_act/tc_gact.h>
16 #include <linux/tc_act/tc_mirred.h>
17 #include <netinet/in.h>
23 #include <sys/socket.h>
25 #include <rte_byteorder.h>
26 #include <rte_errno.h>
27 #include <rte_ether.h>
29 #include <rte_malloc.h>
30 #include <rte_common.h>
33 #include "mlx5_flow.h"
34 #include "mlx5_autoconf.h"
36 #ifdef HAVE_TC_ACT_VLAN
38 #include <linux/tc_act/tc_vlan.h>
40 #else /* HAVE_TC_ACT_VLAN */
42 #define TCA_VLAN_ACT_POP 1
43 #define TCA_VLAN_ACT_PUSH 2
44 #define TCA_VLAN_ACT_MODIFY 3
45 #define TCA_VLAN_PARMS 2
46 #define TCA_VLAN_PUSH_VLAN_ID 3
47 #define TCA_VLAN_PUSH_VLAN_PROTOCOL 4
48 #define TCA_VLAN_PAD 5
49 #define TCA_VLAN_PUSH_VLAN_PRIORITY 6
56 #endif /* HAVE_TC_ACT_VLAN */
58 #ifdef HAVE_TC_ACT_PEDIT
60 #include <linux/tc_act/tc_pedit.h>
62 #else /* HAVE_TC_ACT_VLAN */
76 TCA_PEDIT_KEY_EX_HTYPE = 1,
77 TCA_PEDIT_KEY_EX_CMD = 2,
78 __TCA_PEDIT_KEY_EX_MAX
81 enum pedit_header_type {
82 TCA_PEDIT_KEY_EX_HDR_TYPE_NETWORK = 0,
83 TCA_PEDIT_KEY_EX_HDR_TYPE_ETH = 1,
84 TCA_PEDIT_KEY_EX_HDR_TYPE_IP4 = 2,
85 TCA_PEDIT_KEY_EX_HDR_TYPE_IP6 = 3,
86 TCA_PEDIT_KEY_EX_HDR_TYPE_TCP = 4,
87 TCA_PEDIT_KEY_EX_HDR_TYPE_UDP = 5,
92 TCA_PEDIT_KEY_EX_CMD_SET = 0,
93 TCA_PEDIT_KEY_EX_CMD_ADD = 1,
100 __u32 off; /*offset */
107 struct tc_pedit_sel {
111 struct tc_pedit_key keys[0];
114 #endif /* HAVE_TC_ACT_VLAN */
116 #ifdef HAVE_TC_ACT_TUNNEL_KEY
118 #include <linux/tc_act/tc_tunnel_key.h>
120 #ifndef HAVE_TCA_TUNNEL_KEY_ENC_DST_PORT
121 #define TCA_TUNNEL_KEY_ENC_DST_PORT 9
124 #ifndef HAVE_TCA_TUNNEL_KEY_NO_CSUM
125 #define TCA_TUNNEL_KEY_NO_CSUM 10
128 #else /* HAVE_TC_ACT_TUNNEL_KEY */
130 #define TCA_ACT_TUNNEL_KEY 17
131 #define TCA_TUNNEL_KEY_ACT_SET 1
132 #define TCA_TUNNEL_KEY_ACT_RELEASE 2
133 #define TCA_TUNNEL_KEY_PARMS 2
134 #define TCA_TUNNEL_KEY_ENC_IPV4_SRC 3
135 #define TCA_TUNNEL_KEY_ENC_IPV4_DST 4
136 #define TCA_TUNNEL_KEY_ENC_IPV6_SRC 5
137 #define TCA_TUNNEL_KEY_ENC_IPV6_DST 6
138 #define TCA_TUNNEL_KEY_ENC_KEY_ID 7
139 #define TCA_TUNNEL_KEY_ENC_DST_PORT 9
140 #define TCA_TUNNEL_KEY_NO_CSUM 10
142 struct tc_tunnel_key {
147 #endif /* HAVE_TC_ACT_TUNNEL_KEY */
149 /* Normally found in linux/netlink.h. */
150 #ifndef NETLINK_CAP_ACK
151 #define NETLINK_CAP_ACK 10
154 /* Normally found in linux/pkt_sched.h. */
155 #ifndef TC_H_MIN_INGRESS
156 #define TC_H_MIN_INGRESS 0xfff2u
159 /* Normally found in linux/pkt_cls.h. */
160 #ifndef TCA_CLS_FLAGS_SKIP_SW
161 #define TCA_CLS_FLAGS_SKIP_SW (1 << 1)
163 #ifndef TCA_CLS_FLAGS_IN_HW
164 #define TCA_CLS_FLAGS_IN_HW (1 << 2)
166 #ifndef HAVE_TCA_CHAIN
169 #ifndef HAVE_TCA_FLOWER_ACT
170 #define TCA_FLOWER_ACT 3
172 #ifndef HAVE_TCA_FLOWER_FLAGS
173 #define TCA_FLOWER_FLAGS 22
175 #ifndef HAVE_TCA_FLOWER_KEY_ETH_TYPE
176 #define TCA_FLOWER_KEY_ETH_TYPE 8
178 #ifndef HAVE_TCA_FLOWER_KEY_ETH_DST
179 #define TCA_FLOWER_KEY_ETH_DST 4
181 #ifndef HAVE_TCA_FLOWER_KEY_ETH_DST_MASK
182 #define TCA_FLOWER_KEY_ETH_DST_MASK 5
184 #ifndef HAVE_TCA_FLOWER_KEY_ETH_SRC
185 #define TCA_FLOWER_KEY_ETH_SRC 6
187 #ifndef HAVE_TCA_FLOWER_KEY_ETH_SRC_MASK
188 #define TCA_FLOWER_KEY_ETH_SRC_MASK 7
190 #ifndef HAVE_TCA_FLOWER_KEY_IP_PROTO
191 #define TCA_FLOWER_KEY_IP_PROTO 9
193 #ifndef HAVE_TCA_FLOWER_KEY_IPV4_SRC
194 #define TCA_FLOWER_KEY_IPV4_SRC 10
196 #ifndef HAVE_TCA_FLOWER_KEY_IPV4_SRC_MASK
197 #define TCA_FLOWER_KEY_IPV4_SRC_MASK 11
199 #ifndef HAVE_TCA_FLOWER_KEY_IPV4_DST
200 #define TCA_FLOWER_KEY_IPV4_DST 12
202 #ifndef HAVE_TCA_FLOWER_KEY_IPV4_DST_MASK
203 #define TCA_FLOWER_KEY_IPV4_DST_MASK 13
205 #ifndef HAVE_TCA_FLOWER_KEY_IPV6_SRC
206 #define TCA_FLOWER_KEY_IPV6_SRC 14
208 #ifndef HAVE_TCA_FLOWER_KEY_IPV6_SRC_MASK
209 #define TCA_FLOWER_KEY_IPV6_SRC_MASK 15
211 #ifndef HAVE_TCA_FLOWER_KEY_IPV6_DST
212 #define TCA_FLOWER_KEY_IPV6_DST 16
214 #ifndef HAVE_TCA_FLOWER_KEY_IPV6_DST_MASK
215 #define TCA_FLOWER_KEY_IPV6_DST_MASK 17
217 #ifndef HAVE_TCA_FLOWER_KEY_TCP_SRC
218 #define TCA_FLOWER_KEY_TCP_SRC 18
220 #ifndef HAVE_TCA_FLOWER_KEY_TCP_SRC_MASK
221 #define TCA_FLOWER_KEY_TCP_SRC_MASK 35
223 #ifndef HAVE_TCA_FLOWER_KEY_TCP_DST
224 #define TCA_FLOWER_KEY_TCP_DST 19
226 #ifndef HAVE_TCA_FLOWER_KEY_TCP_DST_MASK
227 #define TCA_FLOWER_KEY_TCP_DST_MASK 36
229 #ifndef HAVE_TCA_FLOWER_KEY_UDP_SRC
230 #define TCA_FLOWER_KEY_UDP_SRC 20
232 #ifndef HAVE_TCA_FLOWER_KEY_UDP_SRC_MASK
233 #define TCA_FLOWER_KEY_UDP_SRC_MASK 37
235 #ifndef HAVE_TCA_FLOWER_KEY_UDP_DST
236 #define TCA_FLOWER_KEY_UDP_DST 21
238 #ifndef HAVE_TCA_FLOWER_KEY_UDP_DST_MASK
239 #define TCA_FLOWER_KEY_UDP_DST_MASK 38
241 #ifndef HAVE_TCA_FLOWER_KEY_VLAN_ID
242 #define TCA_FLOWER_KEY_VLAN_ID 23
244 #ifndef HAVE_TCA_FLOWER_KEY_VLAN_PRIO
245 #define TCA_FLOWER_KEY_VLAN_PRIO 24
247 #ifndef HAVE_TCA_FLOWER_KEY_VLAN_ETH_TYPE
248 #define TCA_FLOWER_KEY_VLAN_ETH_TYPE 25
250 #ifndef HAVE_TCA_FLOWER_KEY_ENC_KEY_ID
251 #define TCA_FLOWER_KEY_ENC_KEY_ID 26
253 #ifndef HAVE_TCA_FLOWER_KEY_ENC_IPV4_SRC
254 #define TCA_FLOWER_KEY_ENC_IPV4_SRC 27
256 #ifndef HAVE_TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK
257 #define TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK 28
259 #ifndef HAVE_TCA_FLOWER_KEY_ENC_IPV4_DST
260 #define TCA_FLOWER_KEY_ENC_IPV4_DST 29
262 #ifndef HAVE_TCA_FLOWER_KEY_ENC_IPV4_DST_MASK
263 #define TCA_FLOWER_KEY_ENC_IPV4_DST_MASK 30
265 #ifndef HAVE_TCA_FLOWER_KEY_ENC_IPV6_SRC
266 #define TCA_FLOWER_KEY_ENC_IPV6_SRC 31
268 #ifndef HAVE_TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK
269 #define TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK 32
271 #ifndef HAVE_TCA_FLOWER_KEY_ENC_IPV6_DST
272 #define TCA_FLOWER_KEY_ENC_IPV6_DST 33
274 #ifndef HAVE_TCA_FLOWER_KEY_ENC_IPV6_DST_MASK
275 #define TCA_FLOWER_KEY_ENC_IPV6_DST_MASK 34
277 #ifndef HAVE_TCA_FLOWER_KEY_ENC_UDP_SRC_PORT
278 #define TCA_FLOWER_KEY_ENC_UDP_SRC_PORT 43
280 #ifndef HAVE_TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK
281 #define TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK 44
283 #ifndef HAVE_TCA_FLOWER_KEY_ENC_UDP_DST_PORT
284 #define TCA_FLOWER_KEY_ENC_UDP_DST_PORT 45
286 #ifndef HAVE_TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK
287 #define TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK 46
289 #ifndef HAVE_TCA_FLOWER_KEY_TCP_FLAGS
290 #define TCA_FLOWER_KEY_TCP_FLAGS 71
292 #ifndef HAVE_TCA_FLOWER_KEY_TCP_FLAGS_MASK
293 #define TCA_FLOWER_KEY_TCP_FLAGS_MASK 72
295 #ifndef HAVE_TC_ACT_GOTO_CHAIN
296 #define TC_ACT_GOTO_CHAIN 0x20000000
299 #ifndef IPV6_ADDR_LEN
300 #define IPV6_ADDR_LEN 16
303 #ifndef IPV4_ADDR_LEN
304 #define IPV4_ADDR_LEN 4
308 #define TP_PORT_LEN 2 /* Transport Port (UDP/TCP) Length */
315 #ifndef TCA_ACT_MAX_PRIO
316 #define TCA_ACT_MAX_PRIO 32
319 /** UDP port range of VXLAN devices created by driver. */
320 #define MLX5_VXLAN_PORT_MIN 30000
321 #define MLX5_VXLAN_PORT_MAX 60000
322 #define MLX5_VXLAN_DEVICE_PFX "vmlx_"
324 /** Tunnel action type, used for @p type in header structure. */
325 enum flow_tcf_tunact_type {
326 FLOW_TCF_TUNACT_VXLAN_DECAP,
327 FLOW_TCF_TUNACT_VXLAN_ENCAP,
330 /** Flags used for @p mask in tunnel action encap descriptors. */
331 #define FLOW_TCF_ENCAP_ETH_SRC (1u << 0)
332 #define FLOW_TCF_ENCAP_ETH_DST (1u << 1)
333 #define FLOW_TCF_ENCAP_IPV4_SRC (1u << 2)
334 #define FLOW_TCF_ENCAP_IPV4_DST (1u << 3)
335 #define FLOW_TCF_ENCAP_IPV6_SRC (1u << 4)
336 #define FLOW_TCF_ENCAP_IPV6_DST (1u << 5)
337 #define FLOW_TCF_ENCAP_UDP_SRC (1u << 6)
338 #define FLOW_TCF_ENCAP_UDP_DST (1u << 7)
339 #define FLOW_TCF_ENCAP_VXLAN_VNI (1u << 8)
342 * Structure for holding netlink context.
343 * Note the size of the message buffer which is MNL_SOCKET_BUFFER_SIZE.
344 * Using this (8KB) buffer size ensures that netlink messages will never be
347 struct mlx5_flow_tcf_context {
348 struct mnl_socket *nl; /* NETLINK_ROUTE libmnl socket. */
349 uint32_t seq; /* Message sequence number. */
350 uint32_t buf_size; /* Message buffer size. */
351 uint8_t *buf; /* Message buffer. */
355 * Neigh rule structure. The neigh rule is applied via Netlink to
356 * outer tunnel iface in order to provide destination MAC address
357 * for the VXLAN encapsultion. The neigh rule is implicitly related
358 * to the Flow itself and can be shared by multiple Flows.
360 struct tcf_neigh_rule {
361 LIST_ENTRY(tcf_neigh_rule) next;
363 struct ether_addr eth;
370 uint8_t dst[IPV6_ADDR_LEN];
376 * Local rule structure. The local rule is applied via Netlink to
377 * outer tunnel iface in order to provide local and peer IP addresses
378 * of the VXLAN tunnel for encapsulation. The local rule is implicitly
379 * related to the Flow itself and can be shared by multiple Flows.
381 struct tcf_local_rule {
382 LIST_ENTRY(tcf_local_rule) next;
391 uint8_t dst[IPV6_ADDR_LEN];
392 uint8_t src[IPV6_ADDR_LEN];
397 /** VXLAN virtual netdev. */
399 LIST_ENTRY(tcf_vtep) next;
400 LIST_HEAD(, tcf_neigh_rule) neigh;
401 LIST_HEAD(, tcf_local_rule) local;
403 unsigned int ifindex; /**< Own interface index. */
404 unsigned int ifouter; /**< Index of device attached to. */
409 /** Tunnel descriptor header, common for all tunnel types. */
410 struct flow_tcf_tunnel_hdr {
411 uint32_t type; /**< Tunnel action type. */
412 struct tcf_vtep *vtep; /**< Virtual tunnel endpoint device. */
413 unsigned int ifindex_org; /**< Original dst/src interface */
414 unsigned int *ifindex_ptr; /**< Interface ptr in message. */
417 struct flow_tcf_vxlan_decap {
418 struct flow_tcf_tunnel_hdr hdr;
422 struct flow_tcf_vxlan_encap {
423 struct flow_tcf_tunnel_hdr hdr;
426 struct ether_addr dst;
427 struct ether_addr src;
435 uint8_t dst[IPV6_ADDR_LEN];
436 uint8_t src[IPV6_ADDR_LEN];
448 /** Structure used when extracting the values of a flow counters
449 * from a netlink message.
451 struct flow_tcf_stats_basic {
453 struct gnet_stats_basic counters;
456 /** Empty masks for known item types. */
458 struct rte_flow_item_port_id port_id;
459 struct rte_flow_item_eth eth;
460 struct rte_flow_item_vlan vlan;
461 struct rte_flow_item_ipv4 ipv4;
462 struct rte_flow_item_ipv6 ipv6;
463 struct rte_flow_item_tcp tcp;
464 struct rte_flow_item_udp udp;
465 struct rte_flow_item_vxlan vxlan;
466 } flow_tcf_mask_empty = {
470 /** Supported masks for known item types. */
471 static const struct {
472 struct rte_flow_item_port_id port_id;
473 struct rte_flow_item_eth eth;
474 struct rte_flow_item_vlan vlan;
475 struct rte_flow_item_ipv4 ipv4;
476 struct rte_flow_item_ipv6 ipv6;
477 struct rte_flow_item_tcp tcp;
478 struct rte_flow_item_udp udp;
479 struct rte_flow_item_vxlan vxlan;
480 } flow_tcf_mask_supported = {
485 .type = RTE_BE16(0xffff),
486 .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
487 .src.addr_bytes = "\xff\xff\xff\xff\xff\xff",
490 /* PCP and VID only, no DEI. */
491 .tci = RTE_BE16(0xefff),
492 .inner_type = RTE_BE16(0xffff),
495 .next_proto_id = 0xff,
496 .src_addr = RTE_BE32(0xffffffff),
497 .dst_addr = RTE_BE32(0xffffffff),
502 "\xff\xff\xff\xff\xff\xff\xff\xff"
503 "\xff\xff\xff\xff\xff\xff\xff\xff",
505 "\xff\xff\xff\xff\xff\xff\xff\xff"
506 "\xff\xff\xff\xff\xff\xff\xff\xff",
509 .src_port = RTE_BE16(0xffff),
510 .dst_port = RTE_BE16(0xffff),
514 .src_port = RTE_BE16(0xffff),
515 .dst_port = RTE_BE16(0xffff),
518 .vni = "\xff\xff\xff",
522 #define SZ_NLATTR_HDR MNL_ALIGN(sizeof(struct nlattr))
523 #define SZ_NLATTR_NEST SZ_NLATTR_HDR
524 #define SZ_NLATTR_DATA_OF(len) MNL_ALIGN(SZ_NLATTR_HDR + (len))
525 #define SZ_NLATTR_TYPE_OF(typ) SZ_NLATTR_DATA_OF(sizeof(typ))
526 #define SZ_NLATTR_STRZ_OF(str) SZ_NLATTR_DATA_OF(strlen(str) + 1)
528 #define PTOI_TABLE_SZ_MAX(dev) (mlx5_dev_to_port_id((dev)->device, NULL, 0) + 2)
530 /** DPDK port to network interface index (ifindex) conversion. */
531 struct flow_tcf_ptoi {
532 uint16_t port_id; /**< DPDK port ID. */
533 unsigned int ifindex; /**< Network interface index. */
536 /* Due to a limitation on driver/FW. */
537 #define MLX5_TCF_GROUP_ID_MAX 3
540 * Due to a limitation on driver/FW, priority ranges from 1 to 16 in kernel.
541 * Priority in rte_flow attribute starts from 0 and is added by 1 in
542 * translation. This is subject to be changed to determine the max priority
543 * based on trial-and-error like Verbs driver once the restriction is lifted or
544 * the range is extended.
546 #define MLX5_TCF_GROUP_PRIORITY_MAX 15
548 #define MLX5_TCF_FATE_ACTIONS \
549 (MLX5_FLOW_ACTION_DROP | MLX5_FLOW_ACTION_PORT_ID | \
550 MLX5_FLOW_ACTION_JUMP)
552 #define MLX5_TCF_VLAN_ACTIONS \
553 (MLX5_FLOW_ACTION_OF_POP_VLAN | MLX5_FLOW_ACTION_OF_PUSH_VLAN | \
554 MLX5_FLOW_ACTION_OF_SET_VLAN_VID | MLX5_FLOW_ACTION_OF_SET_VLAN_PCP)
556 #define MLX5_TCF_VXLAN_ACTIONS \
557 (MLX5_FLOW_ACTION_VXLAN_ENCAP | MLX5_FLOW_ACTION_VXLAN_DECAP)
559 #define MLX5_TCF_PEDIT_ACTIONS \
560 (MLX5_FLOW_ACTION_SET_IPV4_SRC | MLX5_FLOW_ACTION_SET_IPV4_DST | \
561 MLX5_FLOW_ACTION_SET_IPV6_SRC | MLX5_FLOW_ACTION_SET_IPV6_DST | \
562 MLX5_FLOW_ACTION_SET_TP_SRC | MLX5_FLOW_ACTION_SET_TP_DST | \
563 MLX5_FLOW_ACTION_SET_TTL | MLX5_FLOW_ACTION_DEC_TTL | \
564 MLX5_FLOW_ACTION_SET_MAC_SRC | MLX5_FLOW_ACTION_SET_MAC_DST)
566 #define MLX5_TCF_CONFIG_ACTIONS \
567 (MLX5_FLOW_ACTION_PORT_ID | MLX5_FLOW_ACTION_JUMP | \
568 MLX5_FLOW_ACTION_OF_PUSH_VLAN | MLX5_FLOW_ACTION_OF_SET_VLAN_VID | \
569 MLX5_FLOW_ACTION_OF_SET_VLAN_PCP | \
570 (MLX5_TCF_PEDIT_ACTIONS & ~MLX5_FLOW_ACTION_DEC_TTL))
572 #define MAX_PEDIT_KEYS 128
573 #define SZ_PEDIT_KEY_VAL 4
575 #define NUM_OF_PEDIT_KEYS(sz) \
576 (((sz) / SZ_PEDIT_KEY_VAL) + (((sz) % SZ_PEDIT_KEY_VAL) ? 1 : 0))
578 struct pedit_key_ex {
579 enum pedit_header_type htype;
583 struct pedit_parser {
584 struct tc_pedit_sel sel;
585 struct tc_pedit_key keys[MAX_PEDIT_KEYS];
586 struct pedit_key_ex keys_ex[MAX_PEDIT_KEYS];
590 * Create space for using the implicitly created TC flow counter.
593 * Pointer to the Ethernet device structure.
596 * A pointer to the counter data structure, NULL otherwise and
599 static struct mlx5_flow_counter *
600 flow_tcf_counter_new(void)
602 struct mlx5_flow_counter *cnt;
605 * eswitch counter cannot be shared and its id is unknown.
606 * currently returning all with id 0.
607 * in the future maybe better to switch to unique numbers.
609 struct mlx5_flow_counter tmpl = {
612 cnt = rte_calloc(__func__, 1, sizeof(*cnt), 0);
618 /* Implicit counter, do not add to list. */
623 * Set pedit key of MAC address
626 * pointer to action specification
627 * @param[in,out] p_parser
628 * pointer to pedit_parser
631 flow_tcf_pedit_key_set_mac(const struct rte_flow_action *actions,
632 struct pedit_parser *p_parser)
634 int idx = p_parser->sel.nkeys;
635 uint32_t off = actions->type == RTE_FLOW_ACTION_TYPE_SET_MAC_SRC ?
636 offsetof(struct ether_hdr, s_addr) :
637 offsetof(struct ether_hdr, d_addr);
638 const struct rte_flow_action_set_mac *conf =
639 (const struct rte_flow_action_set_mac *)actions->conf;
641 p_parser->keys[idx].off = off;
642 p_parser->keys[idx].mask = ~UINT32_MAX;
643 p_parser->keys_ex[idx].htype = TCA_PEDIT_KEY_EX_HDR_TYPE_ETH;
644 p_parser->keys_ex[idx].cmd = TCA_PEDIT_KEY_EX_CMD_SET;
645 memcpy(&p_parser->keys[idx].val,
646 conf->mac_addr, SZ_PEDIT_KEY_VAL);
648 p_parser->keys[idx].off = off + SZ_PEDIT_KEY_VAL;
649 p_parser->keys[idx].mask = 0xFFFF0000;
650 p_parser->keys_ex[idx].htype = TCA_PEDIT_KEY_EX_HDR_TYPE_ETH;
651 p_parser->keys_ex[idx].cmd = TCA_PEDIT_KEY_EX_CMD_SET;
652 memcpy(&p_parser->keys[idx].val,
653 conf->mac_addr + SZ_PEDIT_KEY_VAL,
654 ETHER_ADDR_LEN - SZ_PEDIT_KEY_VAL);
655 p_parser->sel.nkeys = (++idx);
659 * Set pedit key of decrease/set ttl
662 * pointer to action specification
663 * @param[in,out] p_parser
664 * pointer to pedit_parser
665 * @param[in] item_flags
666 * flags of all items presented
669 flow_tcf_pedit_key_set_dec_ttl(const struct rte_flow_action *actions,
670 struct pedit_parser *p_parser,
673 int idx = p_parser->sel.nkeys;
675 p_parser->keys[idx].mask = 0xFFFFFF00;
676 if (item_flags & MLX5_FLOW_LAYER_OUTER_L3_IPV4) {
677 p_parser->keys_ex[idx].htype = TCA_PEDIT_KEY_EX_HDR_TYPE_IP4;
678 p_parser->keys[idx].off =
679 offsetof(struct ipv4_hdr, time_to_live);
681 if (item_flags & MLX5_FLOW_LAYER_OUTER_L3_IPV6) {
682 p_parser->keys_ex[idx].htype = TCA_PEDIT_KEY_EX_HDR_TYPE_IP6;
683 p_parser->keys[idx].off =
684 offsetof(struct ipv6_hdr, hop_limits);
686 if (actions->type == RTE_FLOW_ACTION_TYPE_DEC_TTL) {
687 p_parser->keys_ex[idx].cmd = TCA_PEDIT_KEY_EX_CMD_ADD;
688 p_parser->keys[idx].val = 0x000000FF;
690 p_parser->keys_ex[idx].cmd = TCA_PEDIT_KEY_EX_CMD_SET;
691 p_parser->keys[idx].val =
692 (__u32)((const struct rte_flow_action_set_ttl *)
693 actions->conf)->ttl_value;
695 p_parser->sel.nkeys = (++idx);
699 * Set pedit key of transport (TCP/UDP) port value
702 * pointer to action specification
703 * @param[in,out] p_parser
704 * pointer to pedit_parser
705 * @param[in] item_flags
706 * flags of all items presented
709 flow_tcf_pedit_key_set_tp_port(const struct rte_flow_action *actions,
710 struct pedit_parser *p_parser,
713 int idx = p_parser->sel.nkeys;
715 if (item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP)
716 p_parser->keys_ex[idx].htype = TCA_PEDIT_KEY_EX_HDR_TYPE_UDP;
717 if (item_flags & MLX5_FLOW_LAYER_OUTER_L4_TCP)
718 p_parser->keys_ex[idx].htype = TCA_PEDIT_KEY_EX_HDR_TYPE_TCP;
719 p_parser->keys_ex[idx].cmd = TCA_PEDIT_KEY_EX_CMD_SET;
720 /* offset of src/dst port is same for TCP and UDP */
721 p_parser->keys[idx].off =
722 actions->type == RTE_FLOW_ACTION_TYPE_SET_TP_SRC ?
723 offsetof(struct tcp_hdr, src_port) :
724 offsetof(struct tcp_hdr, dst_port);
725 p_parser->keys[idx].mask = 0xFFFF0000;
726 p_parser->keys[idx].val =
727 (__u32)((const struct rte_flow_action_set_tp *)
728 actions->conf)->port;
729 p_parser->sel.nkeys = (++idx);
733 * Set pedit key of ipv6 address
736 * pointer to action specification
737 * @param[in,out] p_parser
738 * pointer to pedit_parser
741 flow_tcf_pedit_key_set_ipv6_addr(const struct rte_flow_action *actions,
742 struct pedit_parser *p_parser)
744 int idx = p_parser->sel.nkeys;
745 int keys = NUM_OF_PEDIT_KEYS(IPV6_ADDR_LEN);
747 actions->type == RTE_FLOW_ACTION_TYPE_SET_IPV6_SRC ?
748 offsetof(struct ipv6_hdr, src_addr) :
749 offsetof(struct ipv6_hdr, dst_addr);
750 const struct rte_flow_action_set_ipv6 *conf =
751 (const struct rte_flow_action_set_ipv6 *)actions->conf;
753 for (int i = 0; i < keys; i++, idx++) {
754 p_parser->keys_ex[idx].htype = TCA_PEDIT_KEY_EX_HDR_TYPE_IP6;
755 p_parser->keys_ex[idx].cmd = TCA_PEDIT_KEY_EX_CMD_SET;
756 p_parser->keys[idx].off = off_base + i * SZ_PEDIT_KEY_VAL;
757 p_parser->keys[idx].mask = ~UINT32_MAX;
758 memcpy(&p_parser->keys[idx].val,
759 conf->ipv6_addr + i * SZ_PEDIT_KEY_VAL,
762 p_parser->sel.nkeys += keys;
766 * Set pedit key of ipv4 address
769 * pointer to action specification
770 * @param[in,out] p_parser
771 * pointer to pedit_parser
774 flow_tcf_pedit_key_set_ipv4_addr(const struct rte_flow_action *actions,
775 struct pedit_parser *p_parser)
777 int idx = p_parser->sel.nkeys;
779 p_parser->keys_ex[idx].htype = TCA_PEDIT_KEY_EX_HDR_TYPE_IP4;
780 p_parser->keys_ex[idx].cmd = TCA_PEDIT_KEY_EX_CMD_SET;
781 p_parser->keys[idx].off =
782 actions->type == RTE_FLOW_ACTION_TYPE_SET_IPV4_SRC ?
783 offsetof(struct ipv4_hdr, src_addr) :
784 offsetof(struct ipv4_hdr, dst_addr);
785 p_parser->keys[idx].mask = ~UINT32_MAX;
786 p_parser->keys[idx].val =
787 ((const struct rte_flow_action_set_ipv4 *)
788 actions->conf)->ipv4_addr;
789 p_parser->sel.nkeys = (++idx);
793 * Create the pedit's na attribute in netlink message
794 * on pre-allocate message buffer
797 * pointer to pre-allocated netlink message buffer
798 * @param[in,out] actions
799 * pointer to pointer of actions specification.
800 * @param[in,out] action_flags
801 * pointer to actions flags
802 * @param[in] item_flags
803 * flags of all item presented
806 flow_tcf_create_pedit_mnl_msg(struct nlmsghdr *nl,
807 const struct rte_flow_action **actions,
810 struct pedit_parser p_parser;
811 struct nlattr *na_act_options;
812 struct nlattr *na_pedit_keys;
814 memset(&p_parser, 0, sizeof(p_parser));
815 mnl_attr_put_strz(nl, TCA_ACT_KIND, "pedit");
816 na_act_options = mnl_attr_nest_start(nl, TCA_ACT_OPTIONS);
817 /* all modify header actions should be in one tc-pedit action */
818 for (; (*actions)->type != RTE_FLOW_ACTION_TYPE_END; (*actions)++) {
819 switch ((*actions)->type) {
820 case RTE_FLOW_ACTION_TYPE_SET_IPV4_SRC:
821 case RTE_FLOW_ACTION_TYPE_SET_IPV4_DST:
822 flow_tcf_pedit_key_set_ipv4_addr(*actions, &p_parser);
824 case RTE_FLOW_ACTION_TYPE_SET_IPV6_SRC:
825 case RTE_FLOW_ACTION_TYPE_SET_IPV6_DST:
826 flow_tcf_pedit_key_set_ipv6_addr(*actions, &p_parser);
828 case RTE_FLOW_ACTION_TYPE_SET_TP_SRC:
829 case RTE_FLOW_ACTION_TYPE_SET_TP_DST:
830 flow_tcf_pedit_key_set_tp_port(*actions,
831 &p_parser, item_flags);
833 case RTE_FLOW_ACTION_TYPE_SET_TTL:
834 case RTE_FLOW_ACTION_TYPE_DEC_TTL:
835 flow_tcf_pedit_key_set_dec_ttl(*actions,
836 &p_parser, item_flags);
838 case RTE_FLOW_ACTION_TYPE_SET_MAC_SRC:
839 case RTE_FLOW_ACTION_TYPE_SET_MAC_DST:
840 flow_tcf_pedit_key_set_mac(*actions, &p_parser);
843 goto pedit_mnl_msg_done;
847 p_parser.sel.action = TC_ACT_PIPE;
848 mnl_attr_put(nl, TCA_PEDIT_PARMS_EX,
849 sizeof(p_parser.sel) +
850 p_parser.sel.nkeys * sizeof(struct tc_pedit_key),
853 mnl_attr_nest_start(nl, TCA_PEDIT_KEYS_EX | NLA_F_NESTED);
854 for (int i = 0; i < p_parser.sel.nkeys; i++) {
855 struct nlattr *na_pedit_key =
856 mnl_attr_nest_start(nl,
857 TCA_PEDIT_KEY_EX | NLA_F_NESTED);
858 mnl_attr_put_u16(nl, TCA_PEDIT_KEY_EX_HTYPE,
859 p_parser.keys_ex[i].htype);
860 mnl_attr_put_u16(nl, TCA_PEDIT_KEY_EX_CMD,
861 p_parser.keys_ex[i].cmd);
862 mnl_attr_nest_end(nl, na_pedit_key);
864 mnl_attr_nest_end(nl, na_pedit_keys);
865 mnl_attr_nest_end(nl, na_act_options);
870 * Calculate max memory size of one TC-pedit actions.
871 * One TC-pedit action can contain set of keys each defining
872 * a rewrite element (rte_flow action)
874 * @param[in,out] actions
875 * actions specification.
876 * @param[in,out] action_flags
878 * @param[in,out] size
881 * Max memory size of one TC-pedit action
884 flow_tcf_get_pedit_actions_size(const struct rte_flow_action **actions,
885 uint64_t *action_flags)
891 pedit_size += SZ_NLATTR_NEST + /* na_act_index. */
892 SZ_NLATTR_STRZ_OF("pedit") +
893 SZ_NLATTR_NEST; /* TCA_ACT_OPTIONS. */
894 for (; (*actions)->type != RTE_FLOW_ACTION_TYPE_END; (*actions)++) {
895 switch ((*actions)->type) {
896 case RTE_FLOW_ACTION_TYPE_SET_IPV4_SRC:
897 keys += NUM_OF_PEDIT_KEYS(IPV4_ADDR_LEN);
898 flags |= MLX5_FLOW_ACTION_SET_IPV4_SRC;
900 case RTE_FLOW_ACTION_TYPE_SET_IPV4_DST:
901 keys += NUM_OF_PEDIT_KEYS(IPV4_ADDR_LEN);
902 flags |= MLX5_FLOW_ACTION_SET_IPV4_DST;
904 case RTE_FLOW_ACTION_TYPE_SET_IPV6_SRC:
905 keys += NUM_OF_PEDIT_KEYS(IPV6_ADDR_LEN);
906 flags |= MLX5_FLOW_ACTION_SET_IPV6_SRC;
908 case RTE_FLOW_ACTION_TYPE_SET_IPV6_DST:
909 keys += NUM_OF_PEDIT_KEYS(IPV6_ADDR_LEN);
910 flags |= MLX5_FLOW_ACTION_SET_IPV6_DST;
912 case RTE_FLOW_ACTION_TYPE_SET_TP_SRC:
913 /* TCP is as same as UDP */
914 keys += NUM_OF_PEDIT_KEYS(TP_PORT_LEN);
915 flags |= MLX5_FLOW_ACTION_SET_TP_SRC;
917 case RTE_FLOW_ACTION_TYPE_SET_TP_DST:
918 /* TCP is as same as UDP */
919 keys += NUM_OF_PEDIT_KEYS(TP_PORT_LEN);
920 flags |= MLX5_FLOW_ACTION_SET_TP_DST;
922 case RTE_FLOW_ACTION_TYPE_SET_TTL:
923 keys += NUM_OF_PEDIT_KEYS(TTL_LEN);
924 flags |= MLX5_FLOW_ACTION_SET_TTL;
926 case RTE_FLOW_ACTION_TYPE_DEC_TTL:
927 keys += NUM_OF_PEDIT_KEYS(TTL_LEN);
928 flags |= MLX5_FLOW_ACTION_DEC_TTL;
930 case RTE_FLOW_ACTION_TYPE_SET_MAC_SRC:
931 keys += NUM_OF_PEDIT_KEYS(ETHER_ADDR_LEN);
932 flags |= MLX5_FLOW_ACTION_SET_MAC_SRC;
934 case RTE_FLOW_ACTION_TYPE_SET_MAC_DST:
935 keys += NUM_OF_PEDIT_KEYS(ETHER_ADDR_LEN);
936 flags |= MLX5_FLOW_ACTION_SET_MAC_DST;
939 goto get_pedit_action_size_done;
942 get_pedit_action_size_done:
943 /* TCA_PEDIT_PARAMS_EX */
945 SZ_NLATTR_DATA_OF(sizeof(struct tc_pedit_sel) +
946 keys * sizeof(struct tc_pedit_key));
947 pedit_size += SZ_NLATTR_NEST; /* TCA_PEDIT_KEYS */
949 /* TCA_PEDIT_KEY_EX + HTYPE + CMD */
950 (SZ_NLATTR_NEST + SZ_NLATTR_DATA_OF(2) +
951 SZ_NLATTR_DATA_OF(2));
952 (*action_flags) |= flags;
958 * Retrieve mask for pattern item.
960 * This function does basic sanity checks on a pattern item in order to
961 * return the most appropriate mask for it.
964 * Item specification.
965 * @param[in] mask_default
966 * Default mask for pattern item as specified by the flow API.
967 * @param[in] mask_supported
968 * Mask fields supported by the implementation.
969 * @param[in] mask_empty
970 * Empty mask to return when there is no specification.
972 * Perform verbose error reporting if not NULL.
975 * Either @p item->mask or one of the mask parameters on success, NULL
976 * otherwise and rte_errno is set.
979 flow_tcf_item_mask(const struct rte_flow_item *item, const void *mask_default,
980 const void *mask_supported, const void *mask_empty,
981 size_t mask_size, struct rte_flow_error *error)
986 /* item->last and item->mask cannot exist without item->spec. */
987 if (!item->spec && (item->mask || item->last)) {
988 rte_flow_error_set(error, EINVAL,
989 RTE_FLOW_ERROR_TYPE_ITEM, item,
990 "\"mask\" or \"last\" field provided without"
991 " a corresponding \"spec\"");
994 /* No spec, no mask, no problem. */
997 mask = item->mask ? item->mask : mask_default;
1000 * Single-pass check to make sure that:
1001 * - Mask is supported, no bits are set outside mask_supported.
1002 * - Both item->spec and item->last are included in mask.
1004 for (i = 0; i != mask_size; ++i) {
1007 if ((mask[i] | ((const uint8_t *)mask_supported)[i]) !=
1008 ((const uint8_t *)mask_supported)[i]) {
1009 rte_flow_error_set(error, ENOTSUP,
1010 RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
1011 "unsupported field found"
1016 (((const uint8_t *)item->spec)[i] & mask[i]) !=
1017 (((const uint8_t *)item->last)[i] & mask[i])) {
1018 rte_flow_error_set(error, EINVAL,
1019 RTE_FLOW_ERROR_TYPE_ITEM_LAST,
1021 "range between \"spec\" and \"last\""
1022 " not comprised in \"mask\"");
1030 * Build a conversion table between port ID and ifindex.
1033 * Pointer to Ethernet device.
1035 * Pointer to ptoi table.
1037 * Size of ptoi table provided.
1040 * Size of ptoi table filled.
1043 flow_tcf_build_ptoi_table(struct rte_eth_dev *dev, struct flow_tcf_ptoi *ptoi,
1046 unsigned int n = mlx5_dev_to_port_id(dev->device, NULL, 0);
1047 uint16_t port_id[n + 1];
1049 unsigned int own = 0;
1051 /* At least one port is needed when no switch domain is present. */
1054 port_id[0] = dev->data->port_id;
1056 n = RTE_MIN(mlx5_dev_to_port_id(dev->device, port_id, n), n);
1060 for (i = 0; i != n; ++i) {
1061 struct rte_eth_dev_info dev_info;
1063 rte_eth_dev_info_get(port_id[i], &dev_info);
1064 if (port_id[i] == dev->data->port_id)
1066 ptoi[i].port_id = port_id[i];
1067 ptoi[i].ifindex = dev_info.if_index;
1069 /* Ensure first entry of ptoi[] is the current device. */
1072 ptoi[0] = ptoi[own];
1073 ptoi[own] = ptoi[n];
1075 /* An entry with zero ifindex terminates ptoi[]. */
1076 ptoi[n].port_id = 0;
1077 ptoi[n].ifindex = 0;
1082 * Verify the @p attr will be correctly understood by the E-switch.
1085 * Pointer to flow attributes
1087 * Pointer to error structure.
1090 * 0 on success, a negative errno value otherwise and rte_errno is set.
1093 flow_tcf_validate_attributes(const struct rte_flow_attr *attr,
1094 struct rte_flow_error *error)
1097 * Supported attributes: groups, some priorities and ingress only.
1098 * group is supported only if kernel supports chain. Don't care about
1099 * transfer as it is the caller's problem.
1101 if (attr->group > MLX5_TCF_GROUP_ID_MAX)
1102 return rte_flow_error_set(error, ENOTSUP,
1103 RTE_FLOW_ERROR_TYPE_ATTR_GROUP, attr,
1104 "group ID larger than "
1105 RTE_STR(MLX5_TCF_GROUP_ID_MAX)
1106 " isn't supported");
1107 else if (attr->priority > MLX5_TCF_GROUP_PRIORITY_MAX)
1108 return rte_flow_error_set(error, ENOTSUP,
1109 RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
1111 "priority more than "
1112 RTE_STR(MLX5_TCF_GROUP_PRIORITY_MAX)
1113 " is not supported");
1115 return rte_flow_error_set(error, EINVAL,
1116 RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
1117 attr, "only ingress is supported");
1119 return rte_flow_error_set(error, ENOTSUP,
1120 RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
1121 attr, "egress is not supported");
1126 * Validate VXLAN_ENCAP action RTE_FLOW_ITEM_TYPE_ETH item for E-Switch.
1127 * The routine checks the L2 fields to be used in encapsulation header.
1130 * Pointer to the item structure.
1132 * Pointer to the error structure.
1135 * 0 on success, a negative errno value otherwise and rte_errno is set.
1138 flow_tcf_validate_vxlan_encap_eth(const struct rte_flow_item *item,
1139 struct rte_flow_error *error)
1141 const struct rte_flow_item_eth *spec = item->spec;
1142 const struct rte_flow_item_eth *mask = item->mask;
1146 * Specification for L2 addresses can be empty
1147 * because these ones are optional and not
1148 * required directly by tc rule. Kernel tries
1149 * to resolve these ones on its own
1154 /* If mask is not specified use the default one. */
1155 mask = &rte_flow_item_eth_mask;
1157 if (memcmp(&mask->dst,
1158 &flow_tcf_mask_empty.eth.dst,
1159 sizeof(flow_tcf_mask_empty.eth.dst))) {
1160 if (memcmp(&mask->dst,
1161 &rte_flow_item_eth_mask.dst,
1162 sizeof(rte_flow_item_eth_mask.dst)))
1163 return rte_flow_error_set
1165 RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
1166 "no support for partial mask on"
1167 " \"eth.dst\" field");
1169 if (memcmp(&mask->src,
1170 &flow_tcf_mask_empty.eth.src,
1171 sizeof(flow_tcf_mask_empty.eth.src))) {
1172 if (memcmp(&mask->src,
1173 &rte_flow_item_eth_mask.src,
1174 sizeof(rte_flow_item_eth_mask.src)))
1175 return rte_flow_error_set
1177 RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
1178 "no support for partial mask on"
1179 " \"eth.src\" field");
1181 if (mask->type != RTE_BE16(0x0000)) {
1182 if (mask->type != RTE_BE16(0xffff))
1183 return rte_flow_error_set
1185 RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
1186 "no support for partial mask on"
1187 " \"eth.type\" field");
1189 "outer ethernet type field"
1190 " cannot be forced for vxlan"
1191 " encapsulation, parameter ignored");
1197 * Validate VXLAN_ENCAP action RTE_FLOW_ITEM_TYPE_IPV4 item for E-Switch.
1198 * The routine checks the IPv4 fields to be used in encapsulation header.
1201 * Pointer to the item structure.
1203 * Pointer to the error structure.
1206 * 0 on success, a negative errno value otherwise and rte_errno is set.
1209 flow_tcf_validate_vxlan_encap_ipv4(const struct rte_flow_item *item,
1210 struct rte_flow_error *error)
1212 const struct rte_flow_item_ipv4 *spec = item->spec;
1213 const struct rte_flow_item_ipv4 *mask = item->mask;
1217 * Specification for IP addresses cannot be empty
1218 * because it is required by tunnel_key parameter.
1220 return rte_flow_error_set(error, EINVAL,
1221 RTE_FLOW_ERROR_TYPE_ITEM, item,
1222 "NULL outer ipv4 address"
1223 " specification for vxlan"
1227 mask = &rte_flow_item_ipv4_mask;
1228 if (mask->hdr.dst_addr != RTE_BE32(0x00000000)) {
1229 if (mask->hdr.dst_addr != RTE_BE32(0xffffffff))
1230 return rte_flow_error_set
1232 RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
1233 "no support for partial mask on"
1234 " \"ipv4.hdr.dst_addr\" field"
1235 " for vxlan encapsulation");
1236 /* More IPv4 address validations can be put here. */
1239 * Kernel uses the destination IP address to determine
1240 * the routing path and obtain the MAC destination
1241 * address, so IP destination address must be
1242 * specified in the tc rule.
1244 return rte_flow_error_set(error, EINVAL,
1245 RTE_FLOW_ERROR_TYPE_ITEM, item,
1246 "outer ipv4 destination address"
1247 " must be specified for"
1248 " vxlan encapsulation");
1250 if (mask->hdr.src_addr != RTE_BE32(0x00000000)) {
1251 if (mask->hdr.src_addr != RTE_BE32(0xffffffff))
1252 return rte_flow_error_set
1254 RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
1255 "no support for partial mask on"
1256 " \"ipv4.hdr.src_addr\" field"
1257 " for vxlan encapsulation");
1258 /* More IPv4 address validations can be put here. */
1261 * Kernel uses the source IP address to select the
1262 * interface for egress encapsulated traffic, so
1263 * it must be specified in the tc rule.
1265 return rte_flow_error_set(error, EINVAL,
1266 RTE_FLOW_ERROR_TYPE_ITEM, item,
1267 "outer ipv4 source address"
1268 " must be specified for"
1269 " vxlan encapsulation");
1275 * Validate VXLAN_ENCAP action RTE_FLOW_ITEM_TYPE_IPV6 item for E-Switch.
1276 * The routine checks the IPv6 fields to be used in encapsulation header.
1279 * Pointer to the item structure.
1281 * Pointer to the error structure.
1284 * 0 on success, a negative errno value otherwise and rte_ernno is set.
1287 flow_tcf_validate_vxlan_encap_ipv6(const struct rte_flow_item *item,
1288 struct rte_flow_error *error)
1290 const struct rte_flow_item_ipv6 *spec = item->spec;
1291 const struct rte_flow_item_ipv6 *mask = item->mask;
1295 * Specification for IP addresses cannot be empty
1296 * because it is required by tunnel_key parameter.
1298 return rte_flow_error_set(error, EINVAL,
1299 RTE_FLOW_ERROR_TYPE_ITEM, item,
1300 "NULL outer ipv6 address"
1301 " specification for"
1302 " vxlan encapsulation");
1305 mask = &rte_flow_item_ipv6_mask;
1306 if (memcmp(&mask->hdr.dst_addr,
1307 &flow_tcf_mask_empty.ipv6.hdr.dst_addr,
1309 if (memcmp(&mask->hdr.dst_addr,
1310 &rte_flow_item_ipv6_mask.hdr.dst_addr,
1312 return rte_flow_error_set
1314 RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
1315 "no support for partial mask on"
1316 " \"ipv6.hdr.dst_addr\" field"
1317 " for vxlan encapsulation");
1318 /* More IPv6 address validations can be put here. */
1321 * Kernel uses the destination IP address to determine
1322 * the routing path and obtain the MAC destination
1323 * address (heigh or gate), so IP destination address
1324 * must be specified within the tc rule.
1326 return rte_flow_error_set(error, EINVAL,
1327 RTE_FLOW_ERROR_TYPE_ITEM, item,
1328 "outer ipv6 destination address"
1329 " must be specified for"
1330 " vxlan encapsulation");
1332 if (memcmp(&mask->hdr.src_addr,
1333 &flow_tcf_mask_empty.ipv6.hdr.src_addr,
1335 if (memcmp(&mask->hdr.src_addr,
1336 &rte_flow_item_ipv6_mask.hdr.src_addr,
1338 return rte_flow_error_set
1340 RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
1341 "no support for partial mask on"
1342 " \"ipv6.hdr.src_addr\" field"
1343 " for vxlan encapsulation");
1344 /* More L3 address validation can be put here. */
1347 * Kernel uses the source IP address to select the
1348 * interface for egress encapsulated traffic, so
1349 * it must be specified in the tc rule.
1351 return rte_flow_error_set(error, EINVAL,
1352 RTE_FLOW_ERROR_TYPE_ITEM, item,
1353 "outer L3 source address"
1354 " must be specified for"
1355 " vxlan encapsulation");
1361 * Validate VXLAN_ENCAP action RTE_FLOW_ITEM_TYPE_UDP item for E-Switch.
1362 * The routine checks the UDP fields to be used in encapsulation header.
1365 * Pointer to the item structure.
1367 * Pointer to the error structure.
1370 * 0 on success, a negative errno value otherwise and rte_ernno is set.
1373 flow_tcf_validate_vxlan_encap_udp(const struct rte_flow_item *item,
1374 struct rte_flow_error *error)
1376 const struct rte_flow_item_udp *spec = item->spec;
1377 const struct rte_flow_item_udp *mask = item->mask;
1381 * Specification for UDP ports cannot be empty
1382 * because it is required by tunnel_key parameter.
1384 return rte_flow_error_set(error, EINVAL,
1385 RTE_FLOW_ERROR_TYPE_ITEM, item,
1386 "NULL UDP port specification "
1387 " for vxlan encapsulation");
1390 mask = &rte_flow_item_udp_mask;
1391 if (mask->hdr.dst_port != RTE_BE16(0x0000)) {
1392 if (mask->hdr.dst_port != RTE_BE16(0xffff))
1393 return rte_flow_error_set
1395 RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
1396 "no support for partial mask on"
1397 " \"udp.hdr.dst_port\" field"
1398 " for vxlan encapsulation");
1399 if (!spec->hdr.dst_port)
1400 return rte_flow_error_set
1402 RTE_FLOW_ERROR_TYPE_ITEM, item,
1403 "outer UDP remote port cannot be"
1404 " 0 for vxlan encapsulation");
1406 return rte_flow_error_set(error, EINVAL,
1407 RTE_FLOW_ERROR_TYPE_ITEM, item,
1408 "outer UDP remote port"
1409 " must be specified for"
1410 " vxlan encapsulation");
1412 if (mask->hdr.src_port != RTE_BE16(0x0000)) {
1413 if (mask->hdr.src_port != RTE_BE16(0xffff))
1414 return rte_flow_error_set
1416 RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
1417 "no support for partial mask on"
1418 " \"udp.hdr.src_port\" field"
1419 " for vxlan encapsulation");
1421 "outer UDP source port cannot be"
1422 " forced for vxlan encapsulation,"
1423 " parameter ignored");
1429 * Validate VXLAN_ENCAP action RTE_FLOW_ITEM_TYPE_VXLAN item for E-Switch.
1430 * The routine checks the VNIP fields to be used in encapsulation header.
1433 * Pointer to the item structure.
1435 * Pointer to the error structure.
1438 * 0 on success, a negative errno value otherwise and rte_ernno is set.
1441 flow_tcf_validate_vxlan_encap_vni(const struct rte_flow_item *item,
1442 struct rte_flow_error *error)
1444 const struct rte_flow_item_vxlan *spec = item->spec;
1445 const struct rte_flow_item_vxlan *mask = item->mask;
1448 /* Outer VNI is required by tunnel_key parameter. */
1449 return rte_flow_error_set(error, EINVAL,
1450 RTE_FLOW_ERROR_TYPE_ITEM, item,
1451 "NULL VNI specification"
1452 " for vxlan encapsulation");
1455 mask = &rte_flow_item_vxlan_mask;
1456 if (!mask->vni[0] && !mask->vni[1] && !mask->vni[2])
1457 return rte_flow_error_set(error, EINVAL,
1458 RTE_FLOW_ERROR_TYPE_ITEM, item,
1459 "outer VNI must be specified "
1460 "for vxlan encapsulation");
1461 if (mask->vni[0] != 0xff ||
1462 mask->vni[1] != 0xff ||
1463 mask->vni[2] != 0xff)
1464 return rte_flow_error_set(error, ENOTSUP,
1465 RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
1466 "no support for partial mask on"
1467 " \"vxlan.vni\" field");
1469 if (!spec->vni[0] && !spec->vni[1] && !spec->vni[2])
1470 return rte_flow_error_set(error, EINVAL,
1471 RTE_FLOW_ERROR_TYPE_ITEM, item,
1472 "vxlan vni cannot be 0");
1477 * Validate VXLAN_ENCAP action item list for E-Switch.
1478 * The routine checks items to be used in encapsulation header.
1481 * Pointer to the VXLAN_ENCAP action structure.
1483 * Pointer to the error structure.
1486 * 0 on success, a negative errno value otherwise and rte_ernno is set.
1489 flow_tcf_validate_vxlan_encap(const struct rte_flow_action *action,
1490 struct rte_flow_error *error)
1492 const struct rte_flow_item *items;
1494 uint32_t item_flags = 0;
1497 return rte_flow_error_set(error, EINVAL,
1498 RTE_FLOW_ERROR_TYPE_ACTION, action,
1499 "Missing vxlan tunnel"
1500 " action configuration");
1501 items = ((const struct rte_flow_action_vxlan_encap *)
1502 action->conf)->definition;
1504 return rte_flow_error_set(error, EINVAL,
1505 RTE_FLOW_ERROR_TYPE_ACTION, action,
1506 "Missing vxlan tunnel"
1507 " encapsulation parameters");
1508 for (; items->type != RTE_FLOW_ITEM_TYPE_END; items++) {
1509 switch (items->type) {
1510 case RTE_FLOW_ITEM_TYPE_VOID:
1512 case RTE_FLOW_ITEM_TYPE_ETH:
1513 ret = mlx5_flow_validate_item_eth(items, item_flags,
1517 ret = flow_tcf_validate_vxlan_encap_eth(items, error);
1520 item_flags |= MLX5_FLOW_LAYER_OUTER_L2;
1523 case RTE_FLOW_ITEM_TYPE_IPV4:
1524 ret = mlx5_flow_validate_item_ipv4(items, item_flags,
1528 ret = flow_tcf_validate_vxlan_encap_ipv4(items, error);
1531 item_flags |= MLX5_FLOW_LAYER_OUTER_L3_IPV4;
1533 case RTE_FLOW_ITEM_TYPE_IPV6:
1534 ret = mlx5_flow_validate_item_ipv6(items, item_flags,
1538 ret = flow_tcf_validate_vxlan_encap_ipv6(items, error);
1541 item_flags |= MLX5_FLOW_LAYER_OUTER_L3_IPV6;
1543 case RTE_FLOW_ITEM_TYPE_UDP:
1544 ret = mlx5_flow_validate_item_udp(items, item_flags,
1548 ret = flow_tcf_validate_vxlan_encap_udp(items, error);
1551 item_flags |= MLX5_FLOW_LAYER_OUTER_L4_UDP;
1553 case RTE_FLOW_ITEM_TYPE_VXLAN:
1554 ret = mlx5_flow_validate_item_vxlan(items,
1558 ret = flow_tcf_validate_vxlan_encap_vni(items, error);
1561 item_flags |= MLX5_FLOW_LAYER_VXLAN;
1564 return rte_flow_error_set
1566 RTE_FLOW_ERROR_TYPE_ITEM, items,
1567 "vxlan encap item not supported");
1570 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L3))
1571 return rte_flow_error_set(error, EINVAL,
1572 RTE_FLOW_ERROR_TYPE_ACTION, action,
1573 "no outer IP layer found"
1574 " for vxlan encapsulation");
1575 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP))
1576 return rte_flow_error_set(error, EINVAL,
1577 RTE_FLOW_ERROR_TYPE_ACTION, action,
1578 "no outer UDP layer found"
1579 " for vxlan encapsulation");
1580 if (!(item_flags & MLX5_FLOW_LAYER_VXLAN))
1581 return rte_flow_error_set(error, EINVAL,
1582 RTE_FLOW_ERROR_TYPE_ACTION, action,
1583 "no VXLAN VNI found"
1584 " for vxlan encapsulation");
1589 * Validate outer RTE_FLOW_ITEM_TYPE_UDP item if tunnel item
1590 * RTE_FLOW_ITEM_TYPE_VXLAN is present in item list.
1593 * Outer UDP layer item (if any, NULL otherwise).
1595 * Pointer to the error structure.
1598 * 0 on success, a negative errno value otherwise and rte_errno is set.
1601 flow_tcf_validate_vxlan_decap_udp(const struct rte_flow_item *udp,
1602 struct rte_flow_error *error)
1604 const struct rte_flow_item_udp *spec = udp->spec;
1605 const struct rte_flow_item_udp *mask = udp->mask;
1609 * Specification for UDP ports cannot be empty
1610 * because it is required as decap parameter.
1612 return rte_flow_error_set(error, EINVAL,
1613 RTE_FLOW_ERROR_TYPE_ITEM, udp,
1614 "NULL UDP port specification"
1615 " for VXLAN decapsulation");
1617 mask = &rte_flow_item_udp_mask;
1618 if (mask->hdr.dst_port != RTE_BE16(0x0000)) {
1619 if (mask->hdr.dst_port != RTE_BE16(0xffff))
1620 return rte_flow_error_set
1622 RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
1623 "no support for partial mask on"
1624 " \"udp.hdr.dst_port\" field");
1625 if (!spec->hdr.dst_port)
1626 return rte_flow_error_set
1628 RTE_FLOW_ERROR_TYPE_ITEM, udp,
1629 "zero decap local UDP port");
1631 return rte_flow_error_set(error, EINVAL,
1632 RTE_FLOW_ERROR_TYPE_ITEM, udp,
1633 "outer UDP destination port must be "
1634 "specified for vxlan decapsulation");
1636 if (mask->hdr.src_port != RTE_BE16(0x0000)) {
1637 if (mask->hdr.src_port != RTE_BE16(0xffff))
1638 return rte_flow_error_set
1640 RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
1641 "no support for partial mask on"
1642 " \"udp.hdr.src_port\" field");
1644 "outer UDP local port cannot be "
1645 "forced for VXLAN encapsulation, "
1646 "parameter ignored");
1652 * Validate flow for E-Switch.
1655 * Pointer to the priv structure.
1657 * Pointer to the flow attributes.
1659 * Pointer to the list of items.
1660 * @param[in] actions
1661 * Pointer to the list of actions.
1663 * Pointer to the error structure.
1666 * 0 on success, a negative errno value otherwise and rte_ernno is set.
1669 flow_tcf_validate(struct rte_eth_dev *dev,
1670 const struct rte_flow_attr *attr,
1671 const struct rte_flow_item items[],
1672 const struct rte_flow_action actions[],
1673 struct rte_flow_error *error)
1676 const struct rte_flow_item_port_id *port_id;
1677 const struct rte_flow_item_eth *eth;
1678 const struct rte_flow_item_vlan *vlan;
1679 const struct rte_flow_item_ipv4 *ipv4;
1680 const struct rte_flow_item_ipv6 *ipv6;
1681 const struct rte_flow_item_tcp *tcp;
1682 const struct rte_flow_item_udp *udp;
1683 const struct rte_flow_item_vxlan *vxlan;
1686 const struct rte_flow_action_port_id *port_id;
1687 const struct rte_flow_action_jump *jump;
1688 const struct rte_flow_action_of_push_vlan *of_push_vlan;
1689 const struct rte_flow_action_of_set_vlan_vid *
1691 const struct rte_flow_action_of_set_vlan_pcp *
1693 const struct rte_flow_action_vxlan_encap *vxlan_encap;
1694 const struct rte_flow_action_set_ipv4 *set_ipv4;
1695 const struct rte_flow_action_set_ipv6 *set_ipv6;
1697 const struct rte_flow_item *outer_udp = NULL;
1698 uint64_t item_flags = 0;
1699 uint64_t action_flags = 0;
1700 uint8_t next_protocol = -1;
1701 unsigned int tcm_ifindex = 0;
1702 uint8_t pedit_validated = 0;
1703 struct flow_tcf_ptoi ptoi[PTOI_TABLE_SZ_MAX(dev)];
1704 struct rte_eth_dev *port_id_dev = NULL;
1705 bool in_port_id_set;
1708 claim_nonzero(flow_tcf_build_ptoi_table(dev, ptoi,
1709 PTOI_TABLE_SZ_MAX(dev)));
1710 ret = flow_tcf_validate_attributes(attr, error);
1713 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
1715 uint64_t current_action_flag = 0;
1717 switch (actions->type) {
1718 case RTE_FLOW_ACTION_TYPE_VOID:
1720 case RTE_FLOW_ACTION_TYPE_PORT_ID:
1721 current_action_flag = MLX5_FLOW_ACTION_PORT_ID;
1724 conf.port_id = actions->conf;
1725 if (conf.port_id->original)
1728 for (i = 0; ptoi[i].ifindex; ++i)
1729 if (ptoi[i].port_id == conf.port_id->id)
1731 if (!ptoi[i].ifindex)
1732 return rte_flow_error_set
1734 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1736 "missing data to convert port ID to"
1738 port_id_dev = &rte_eth_devices[conf.port_id->id];
1740 case RTE_FLOW_ACTION_TYPE_JUMP:
1741 current_action_flag = MLX5_FLOW_ACTION_JUMP;
1744 conf.jump = actions->conf;
1745 if (attr->group >= conf.jump->group)
1746 return rte_flow_error_set
1748 RTE_FLOW_ERROR_TYPE_ACTION,
1750 "can jump only to a group forward");
1752 case RTE_FLOW_ACTION_TYPE_DROP:
1753 current_action_flag = MLX5_FLOW_ACTION_DROP;
1755 case RTE_FLOW_ACTION_TYPE_COUNT:
1757 case RTE_FLOW_ACTION_TYPE_OF_POP_VLAN:
1758 current_action_flag = MLX5_FLOW_ACTION_OF_POP_VLAN;
1760 case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN: {
1761 rte_be16_t ethertype;
1763 current_action_flag = MLX5_FLOW_ACTION_OF_PUSH_VLAN;
1766 conf.of_push_vlan = actions->conf;
1767 ethertype = conf.of_push_vlan->ethertype;
1768 if (ethertype != RTE_BE16(ETH_P_8021Q) &&
1769 ethertype != RTE_BE16(ETH_P_8021AD))
1770 return rte_flow_error_set
1772 RTE_FLOW_ERROR_TYPE_ACTION, actions,
1773 "vlan push TPID must be "
1774 "802.1Q or 802.1AD");
1777 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID:
1778 if (!(action_flags & MLX5_FLOW_ACTION_OF_PUSH_VLAN))
1779 return rte_flow_error_set
1781 RTE_FLOW_ERROR_TYPE_ACTION, actions,
1782 "vlan modify is not supported,"
1783 " set action must follow push action");
1784 current_action_flag = MLX5_FLOW_ACTION_OF_SET_VLAN_VID;
1786 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP:
1787 if (!(action_flags & MLX5_FLOW_ACTION_OF_PUSH_VLAN))
1788 return rte_flow_error_set
1790 RTE_FLOW_ERROR_TYPE_ACTION, actions,
1791 "vlan modify is not supported,"
1792 " set action must follow push action");
1793 current_action_flag = MLX5_FLOW_ACTION_OF_SET_VLAN_PCP;
1795 case RTE_FLOW_ACTION_TYPE_VXLAN_DECAP:
1796 current_action_flag = MLX5_FLOW_ACTION_VXLAN_DECAP;
1798 case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
1799 ret = flow_tcf_validate_vxlan_encap(actions, error);
1802 current_action_flag = MLX5_FLOW_ACTION_VXLAN_ENCAP;
1804 case RTE_FLOW_ACTION_TYPE_SET_IPV4_SRC:
1805 current_action_flag = MLX5_FLOW_ACTION_SET_IPV4_SRC;
1807 case RTE_FLOW_ACTION_TYPE_SET_IPV4_DST:
1808 current_action_flag = MLX5_FLOW_ACTION_SET_IPV4_DST;
1810 case RTE_FLOW_ACTION_TYPE_SET_IPV6_SRC:
1811 current_action_flag = MLX5_FLOW_ACTION_SET_IPV6_SRC;
1813 case RTE_FLOW_ACTION_TYPE_SET_IPV6_DST:
1814 current_action_flag = MLX5_FLOW_ACTION_SET_IPV6_DST;
1816 case RTE_FLOW_ACTION_TYPE_SET_TP_SRC:
1817 current_action_flag = MLX5_FLOW_ACTION_SET_TP_SRC;
1819 case RTE_FLOW_ACTION_TYPE_SET_TP_DST:
1820 current_action_flag = MLX5_FLOW_ACTION_SET_TP_DST;
1822 case RTE_FLOW_ACTION_TYPE_SET_TTL:
1823 current_action_flag = MLX5_FLOW_ACTION_SET_TTL;
1825 case RTE_FLOW_ACTION_TYPE_DEC_TTL:
1826 current_action_flag = MLX5_FLOW_ACTION_DEC_TTL;
1828 case RTE_FLOW_ACTION_TYPE_SET_MAC_SRC:
1829 current_action_flag = MLX5_FLOW_ACTION_SET_MAC_SRC;
1831 case RTE_FLOW_ACTION_TYPE_SET_MAC_DST:
1832 current_action_flag = MLX5_FLOW_ACTION_SET_MAC_DST;
1835 return rte_flow_error_set(error, ENOTSUP,
1836 RTE_FLOW_ERROR_TYPE_ACTION,
1838 "action not supported");
1840 if (current_action_flag & MLX5_TCF_CONFIG_ACTIONS) {
1842 return rte_flow_error_set
1844 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1846 "action configuration not set");
1848 if ((current_action_flag & MLX5_TCF_PEDIT_ACTIONS) &&
1850 return rte_flow_error_set(error, ENOTSUP,
1851 RTE_FLOW_ERROR_TYPE_ACTION,
1853 "set actions should be "
1854 "listed successively");
1855 if ((current_action_flag & ~MLX5_TCF_PEDIT_ACTIONS) &&
1856 (action_flags & MLX5_TCF_PEDIT_ACTIONS))
1857 pedit_validated = 1;
1858 if ((current_action_flag & MLX5_TCF_FATE_ACTIONS) &&
1859 (action_flags & MLX5_TCF_FATE_ACTIONS))
1860 return rte_flow_error_set(error, EINVAL,
1861 RTE_FLOW_ERROR_TYPE_ACTION,
1863 "can't have multiple fate"
1865 if ((current_action_flag & MLX5_TCF_VXLAN_ACTIONS) &&
1866 (action_flags & MLX5_TCF_VXLAN_ACTIONS))
1867 return rte_flow_error_set(error, EINVAL,
1868 RTE_FLOW_ERROR_TYPE_ACTION,
1870 "can't have multiple vxlan"
1872 if ((current_action_flag & MLX5_TCF_VXLAN_ACTIONS) &&
1873 (action_flags & MLX5_TCF_VLAN_ACTIONS))
1874 return rte_flow_error_set(error, ENOTSUP,
1875 RTE_FLOW_ERROR_TYPE_ACTION,
1877 "can't have vxlan and vlan"
1878 " actions in the same rule");
1879 action_flags |= current_action_flag;
1881 for (; items->type != RTE_FLOW_ITEM_TYPE_END; items++) {
1884 switch (items->type) {
1885 case RTE_FLOW_ITEM_TYPE_VOID:
1887 case RTE_FLOW_ITEM_TYPE_PORT_ID:
1888 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
1889 return rte_flow_error_set
1891 RTE_FLOW_ERROR_TYPE_ITEM, items,
1892 "inner tunnel port id"
1893 " item is not supported");
1894 mask.port_id = flow_tcf_item_mask
1895 (items, &rte_flow_item_port_id_mask,
1896 &flow_tcf_mask_supported.port_id,
1897 &flow_tcf_mask_empty.port_id,
1898 sizeof(flow_tcf_mask_supported.port_id),
1902 if (mask.port_id == &flow_tcf_mask_empty.port_id) {
1906 spec.port_id = items->spec;
1907 if (mask.port_id->id && mask.port_id->id != 0xffffffff)
1908 return rte_flow_error_set
1910 RTE_FLOW_ERROR_TYPE_ITEM_MASK,
1912 "no support for partial mask on"
1914 if (!mask.port_id->id)
1917 for (i = 0; ptoi[i].ifindex; ++i)
1918 if (ptoi[i].port_id == spec.port_id->id)
1920 if (!ptoi[i].ifindex)
1921 return rte_flow_error_set
1923 RTE_FLOW_ERROR_TYPE_ITEM_SPEC,
1925 "missing data to convert port ID to"
1927 if (in_port_id_set && ptoi[i].ifindex != tcm_ifindex)
1928 return rte_flow_error_set
1930 RTE_FLOW_ERROR_TYPE_ITEM_SPEC,
1932 "cannot match traffic for"
1933 " several port IDs through"
1934 " a single flow rule");
1935 tcm_ifindex = ptoi[i].ifindex;
1938 case RTE_FLOW_ITEM_TYPE_ETH:
1939 ret = mlx5_flow_validate_item_eth(items, item_flags,
1943 item_flags |= (item_flags & MLX5_FLOW_LAYER_TUNNEL) ?
1944 MLX5_FLOW_LAYER_INNER_L2 :
1945 MLX5_FLOW_LAYER_OUTER_L2;
1947 * Redundant check due to different supported mask.
1948 * Same for the rest of items.
1950 mask.eth = flow_tcf_item_mask
1951 (items, &rte_flow_item_eth_mask,
1952 &flow_tcf_mask_supported.eth,
1953 &flow_tcf_mask_empty.eth,
1954 sizeof(flow_tcf_mask_supported.eth),
1958 if (mask.eth->type && mask.eth->type !=
1960 return rte_flow_error_set
1962 RTE_FLOW_ERROR_TYPE_ITEM_MASK,
1964 "no support for partial mask on"
1967 case RTE_FLOW_ITEM_TYPE_VLAN:
1968 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
1969 return rte_flow_error_set
1971 RTE_FLOW_ERROR_TYPE_ITEM, items,
1973 " is not supported");
1974 ret = mlx5_flow_validate_item_vlan(items, item_flags,
1978 item_flags |= MLX5_FLOW_LAYER_OUTER_VLAN;
1979 mask.vlan = flow_tcf_item_mask
1980 (items, &rte_flow_item_vlan_mask,
1981 &flow_tcf_mask_supported.vlan,
1982 &flow_tcf_mask_empty.vlan,
1983 sizeof(flow_tcf_mask_supported.vlan),
1987 if ((mask.vlan->tci & RTE_BE16(0xe000) &&
1988 (mask.vlan->tci & RTE_BE16(0xe000)) !=
1989 RTE_BE16(0xe000)) ||
1990 (mask.vlan->tci & RTE_BE16(0x0fff) &&
1991 (mask.vlan->tci & RTE_BE16(0x0fff)) !=
1992 RTE_BE16(0x0fff)) ||
1993 (mask.vlan->inner_type &&
1994 mask.vlan->inner_type != RTE_BE16(0xffff)))
1995 return rte_flow_error_set
1997 RTE_FLOW_ERROR_TYPE_ITEM_MASK,
1999 "no support for partial masks on"
2000 " \"tci\" (PCP and VID parts) and"
2001 " \"inner_type\" fields");
2003 case RTE_FLOW_ITEM_TYPE_IPV4:
2004 ret = mlx5_flow_validate_item_ipv4(items, item_flags,
2008 item_flags |= (item_flags & MLX5_FLOW_LAYER_TUNNEL) ?
2009 MLX5_FLOW_LAYER_INNER_L3_IPV4 :
2010 MLX5_FLOW_LAYER_OUTER_L3_IPV4;
2011 mask.ipv4 = flow_tcf_item_mask
2012 (items, &rte_flow_item_ipv4_mask,
2013 &flow_tcf_mask_supported.ipv4,
2014 &flow_tcf_mask_empty.ipv4,
2015 sizeof(flow_tcf_mask_supported.ipv4),
2019 if (mask.ipv4->hdr.next_proto_id &&
2020 mask.ipv4->hdr.next_proto_id != 0xff)
2021 return rte_flow_error_set
2023 RTE_FLOW_ERROR_TYPE_ITEM_MASK,
2025 "no support for partial mask on"
2026 " \"hdr.next_proto_id\" field");
2027 else if (mask.ipv4->hdr.next_proto_id)
2029 ((const struct rte_flow_item_ipv4 *)
2030 (items->spec))->hdr.next_proto_id;
2032 case RTE_FLOW_ITEM_TYPE_IPV6:
2033 ret = mlx5_flow_validate_item_ipv6(items, item_flags,
2037 item_flags |= (item_flags & MLX5_FLOW_LAYER_TUNNEL) ?
2038 MLX5_FLOW_LAYER_INNER_L3_IPV6 :
2039 MLX5_FLOW_LAYER_OUTER_L3_IPV6;
2040 mask.ipv6 = flow_tcf_item_mask
2041 (items, &rte_flow_item_ipv6_mask,
2042 &flow_tcf_mask_supported.ipv6,
2043 &flow_tcf_mask_empty.ipv6,
2044 sizeof(flow_tcf_mask_supported.ipv6),
2048 if (mask.ipv6->hdr.proto &&
2049 mask.ipv6->hdr.proto != 0xff)
2050 return rte_flow_error_set
2052 RTE_FLOW_ERROR_TYPE_ITEM_MASK,
2054 "no support for partial mask on"
2055 " \"hdr.proto\" field");
2056 else if (mask.ipv6->hdr.proto)
2058 ((const struct rte_flow_item_ipv6 *)
2059 (items->spec))->hdr.proto;
2061 case RTE_FLOW_ITEM_TYPE_UDP:
2062 ret = mlx5_flow_validate_item_udp(items, item_flags,
2063 next_protocol, error);
2066 item_flags |= (item_flags & MLX5_FLOW_LAYER_TUNNEL) ?
2067 MLX5_FLOW_LAYER_INNER_L4_UDP :
2068 MLX5_FLOW_LAYER_OUTER_L4_UDP;
2069 mask.udp = flow_tcf_item_mask
2070 (items, &rte_flow_item_udp_mask,
2071 &flow_tcf_mask_supported.udp,
2072 &flow_tcf_mask_empty.udp,
2073 sizeof(flow_tcf_mask_supported.udp),
2078 * Save the presumed outer UDP item for extra check
2079 * if the tunnel item will be found later in the list.
2081 if (!(item_flags & MLX5_FLOW_LAYER_TUNNEL))
2084 case RTE_FLOW_ITEM_TYPE_TCP:
2085 ret = mlx5_flow_validate_item_tcp
2088 &flow_tcf_mask_supported.tcp,
2092 item_flags |= (item_flags & MLX5_FLOW_LAYER_TUNNEL) ?
2093 MLX5_FLOW_LAYER_INNER_L4_TCP :
2094 MLX5_FLOW_LAYER_OUTER_L4_TCP;
2095 mask.tcp = flow_tcf_item_mask
2096 (items, &rte_flow_item_tcp_mask,
2097 &flow_tcf_mask_supported.tcp,
2098 &flow_tcf_mask_empty.tcp,
2099 sizeof(flow_tcf_mask_supported.tcp),
2104 case RTE_FLOW_ITEM_TYPE_VXLAN:
2105 if (item_flags & MLX5_FLOW_LAYER_OUTER_VLAN)
2106 return rte_flow_error_set
2108 RTE_FLOW_ERROR_TYPE_ITEM, items,
2109 "vxlan tunnel over vlan"
2110 " is not supported");
2111 ret = mlx5_flow_validate_item_vxlan(items,
2115 item_flags |= MLX5_FLOW_LAYER_VXLAN;
2116 mask.vxlan = flow_tcf_item_mask
2117 (items, &rte_flow_item_vxlan_mask,
2118 &flow_tcf_mask_supported.vxlan,
2119 &flow_tcf_mask_empty.vxlan,
2120 sizeof(flow_tcf_mask_supported.vxlan), error);
2123 if (mask.vxlan->vni[0] != 0xff ||
2124 mask.vxlan->vni[1] != 0xff ||
2125 mask.vxlan->vni[2] != 0xff)
2126 return rte_flow_error_set
2128 RTE_FLOW_ERROR_TYPE_ITEM_MASK,
2130 "no support for partial or "
2131 "empty mask on \"vxlan.vni\" field");
2133 * The VNI item assumes the VXLAN tunnel, it requires
2134 * at least the outer destination UDP port must be
2135 * specified without wildcards to allow kernel select
2136 * the virtual VXLAN device by port. Also outer IPv4
2137 * or IPv6 item must be specified (wilcards or even
2138 * zero mask are allowed) to let driver know the tunnel
2139 * IP version and process UDP traffic correctly.
2142 (MLX5_FLOW_LAYER_OUTER_L3_IPV4 |
2143 MLX5_FLOW_LAYER_OUTER_L3_IPV6)))
2144 return rte_flow_error_set
2146 RTE_FLOW_ERROR_TYPE_ACTION,
2148 "no outer IP pattern found"
2149 " for vxlan tunnel");
2150 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP))
2151 return rte_flow_error_set
2153 RTE_FLOW_ERROR_TYPE_ACTION,
2155 "no outer UDP pattern found"
2156 " for vxlan tunnel");
2158 * All items preceding the tunnel item become outer
2159 * ones and we should do extra validation for them
2160 * due to tc limitations for tunnel outer parameters.
2161 * Currently only outer UDP item requres extra check,
2162 * use the saved pointer instead of item list rescan.
2165 ret = flow_tcf_validate_vxlan_decap_udp
2169 /* Reset L4 protocol for inner parameters. */
2170 next_protocol = 0xff;
2173 return rte_flow_error_set(error, ENOTSUP,
2174 RTE_FLOW_ERROR_TYPE_ITEM,
2175 items, "item not supported");
2178 if ((action_flags & MLX5_TCF_PEDIT_ACTIONS) &&
2179 (action_flags & MLX5_FLOW_ACTION_DROP))
2180 return rte_flow_error_set(error, ENOTSUP,
2181 RTE_FLOW_ERROR_TYPE_ACTION,
2183 "set action is not compatible with "
2185 if ((action_flags & MLX5_TCF_PEDIT_ACTIONS) &&
2186 !(action_flags & MLX5_FLOW_ACTION_PORT_ID))
2187 return rte_flow_error_set(error, ENOTSUP,
2188 RTE_FLOW_ERROR_TYPE_ACTION,
2190 "set action must be followed by "
2193 (MLX5_FLOW_ACTION_SET_IPV4_SRC | MLX5_FLOW_ACTION_SET_IPV4_DST)) {
2194 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L3_IPV4))
2195 return rte_flow_error_set(error, EINVAL,
2196 RTE_FLOW_ERROR_TYPE_ACTION,
2198 "no ipv4 item found in"
2202 (MLX5_FLOW_ACTION_SET_IPV6_SRC | MLX5_FLOW_ACTION_SET_IPV6_DST)) {
2203 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L3_IPV6))
2204 return rte_flow_error_set(error, EINVAL,
2205 RTE_FLOW_ERROR_TYPE_ACTION,
2207 "no ipv6 item found in"
2211 (MLX5_FLOW_ACTION_SET_TP_SRC | MLX5_FLOW_ACTION_SET_TP_DST)) {
2213 (MLX5_FLOW_LAYER_OUTER_L4_UDP |
2214 MLX5_FLOW_LAYER_OUTER_L4_TCP)))
2215 return rte_flow_error_set(error, EINVAL,
2216 RTE_FLOW_ERROR_TYPE_ACTION,
2218 "no TCP/UDP item found in"
2222 * FW syndrome (0xA9C090):
2223 * set_flow_table_entry: push vlan action fte in fdb can ONLY be
2224 * forward to the uplink.
2226 if ((action_flags & MLX5_FLOW_ACTION_OF_PUSH_VLAN) &&
2227 (action_flags & MLX5_FLOW_ACTION_PORT_ID) &&
2228 ((struct priv *)port_id_dev->data->dev_private)->representor)
2229 return rte_flow_error_set(error, ENOTSUP,
2230 RTE_FLOW_ERROR_TYPE_ACTION, actions,
2231 "vlan push can only be applied"
2232 " when forwarding to uplink port");
2234 * FW syndrome (0x294609):
2235 * set_flow_table_entry: modify/pop/push actions in fdb flow table
2236 * are supported only while forwarding to vport.
2238 if ((action_flags & MLX5_TCF_VLAN_ACTIONS) &&
2239 !(action_flags & MLX5_FLOW_ACTION_PORT_ID))
2240 return rte_flow_error_set(error, ENOTSUP,
2241 RTE_FLOW_ERROR_TYPE_ACTION, actions,
2242 "vlan actions are supported"
2243 " only with port_id action");
2244 if ((action_flags & MLX5_TCF_VXLAN_ACTIONS) &&
2245 !(action_flags & MLX5_FLOW_ACTION_PORT_ID))
2246 return rte_flow_error_set(error, ENOTSUP,
2247 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
2248 "vxlan actions are supported"
2249 " only with port_id action");
2250 if (!(action_flags & MLX5_TCF_FATE_ACTIONS))
2251 return rte_flow_error_set(error, EINVAL,
2252 RTE_FLOW_ERROR_TYPE_ACTION, actions,
2253 "no fate action is found");
2255 (MLX5_FLOW_ACTION_SET_TTL | MLX5_FLOW_ACTION_DEC_TTL)) {
2257 (MLX5_FLOW_LAYER_OUTER_L3_IPV4 |
2258 MLX5_FLOW_LAYER_OUTER_L3_IPV6)))
2259 return rte_flow_error_set(error, EINVAL,
2260 RTE_FLOW_ERROR_TYPE_ACTION,
2262 "no IP found in pattern");
2265 (MLX5_FLOW_ACTION_SET_MAC_SRC | MLX5_FLOW_ACTION_SET_MAC_DST)) {
2266 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L2))
2267 return rte_flow_error_set(error, ENOTSUP,
2268 RTE_FLOW_ERROR_TYPE_ACTION,
2270 "no ethernet found in"
2273 if ((action_flags & MLX5_FLOW_ACTION_VXLAN_DECAP) &&
2274 !(item_flags & MLX5_FLOW_LAYER_VXLAN))
2275 return rte_flow_error_set(error, EINVAL,
2276 RTE_FLOW_ERROR_TYPE_ACTION,
2278 "no VNI pattern found"
2279 " for vxlan decap action");
2280 if ((action_flags & MLX5_FLOW_ACTION_VXLAN_ENCAP) &&
2281 (item_flags & MLX5_FLOW_LAYER_TUNNEL))
2282 return rte_flow_error_set(error, EINVAL,
2283 RTE_FLOW_ERROR_TYPE_ACTION,
2285 "vxlan encap not supported"
2286 " for tunneled traffic");
2291 * Calculate maximum size of memory for flow items of Linux TC flower.
2294 * Pointer to the flow attributes.
2296 * Pointer to the list of items.
2297 * @param[out] action_flags
2298 * Pointer to the detected actions.
2301 * Maximum size of memory for items.
2304 flow_tcf_get_items_size(const struct rte_flow_attr *attr,
2305 const struct rte_flow_item items[],
2306 uint64_t *action_flags)
2310 size += SZ_NLATTR_STRZ_OF("flower") +
2311 SZ_NLATTR_NEST + /* TCA_OPTIONS. */
2312 SZ_NLATTR_TYPE_OF(uint32_t); /* TCA_CLS_FLAGS_SKIP_SW. */
2313 if (attr->group > 0)
2314 size += SZ_NLATTR_TYPE_OF(uint32_t); /* TCA_CHAIN. */
2315 for (; items->type != RTE_FLOW_ITEM_TYPE_END; items++) {
2316 switch (items->type) {
2317 case RTE_FLOW_ITEM_TYPE_VOID:
2319 case RTE_FLOW_ITEM_TYPE_PORT_ID:
2321 case RTE_FLOW_ITEM_TYPE_ETH:
2322 size += SZ_NLATTR_TYPE_OF(uint16_t) + /* Ether type. */
2323 SZ_NLATTR_DATA_OF(ETHER_ADDR_LEN) * 4;
2324 /* dst/src MAC addr and mask. */
2326 case RTE_FLOW_ITEM_TYPE_VLAN:
2327 size += SZ_NLATTR_TYPE_OF(uint16_t) + /* Ether type. */
2328 SZ_NLATTR_TYPE_OF(uint16_t) +
2329 /* VLAN Ether type. */
2330 SZ_NLATTR_TYPE_OF(uint8_t) + /* VLAN prio. */
2331 SZ_NLATTR_TYPE_OF(uint16_t); /* VLAN ID. */
2333 case RTE_FLOW_ITEM_TYPE_IPV4:
2334 size += SZ_NLATTR_TYPE_OF(uint16_t) + /* Ether type. */
2335 SZ_NLATTR_TYPE_OF(uint8_t) + /* IP proto. */
2336 SZ_NLATTR_TYPE_OF(uint32_t) * 4;
2337 /* dst/src IP addr and mask. */
2339 case RTE_FLOW_ITEM_TYPE_IPV6:
2340 size += SZ_NLATTR_TYPE_OF(uint16_t) + /* Ether type. */
2341 SZ_NLATTR_TYPE_OF(uint8_t) + /* IP proto. */
2342 SZ_NLATTR_DATA_OF(IPV6_ADDR_LEN) * 4;
2343 /* dst/src IP addr and mask. */
2345 case RTE_FLOW_ITEM_TYPE_UDP:
2346 size += SZ_NLATTR_TYPE_OF(uint8_t) + /* IP proto. */
2347 SZ_NLATTR_TYPE_OF(uint16_t) * 4;
2348 /* dst/src port and mask. */
2350 case RTE_FLOW_ITEM_TYPE_TCP:
2351 size += SZ_NLATTR_TYPE_OF(uint8_t) + /* IP proto. */
2352 SZ_NLATTR_TYPE_OF(uint16_t) * 4;
2353 /* dst/src port and mask. */
2355 case RTE_FLOW_ITEM_TYPE_VXLAN:
2356 size += SZ_NLATTR_TYPE_OF(uint32_t);
2358 * There might be no VXLAN decap action in the action
2359 * list, nonetheless the VXLAN tunnel flow requires
2360 * the decap structure to be correctly applied to
2361 * VXLAN device, set the flag to create the structure.
2362 * Translation routine will not put the decap action
2363 * in tne Netlink message if there is no actual action
2366 *action_flags |= MLX5_FLOW_ACTION_VXLAN_DECAP;
2370 "unsupported item %p type %d,"
2371 " items must be validated before flow creation",
2372 (const void *)items, items->type);
2380 * Calculate size of memory to store the VXLAN encapsultion
2381 * related items in the Netlink message buffer. Items list
2382 * is specified by RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP action.
2383 * The item list should be validated.
2386 * RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP action object.
2387 * List of pattern items to scan data from.
2390 * The size the part of Netlink message buffer to store the
2391 * VXLAN encapsulation item attributes.
2394 flow_tcf_vxlan_encap_size(const struct rte_flow_action *action)
2396 const struct rte_flow_item *items;
2399 assert(action->type == RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP);
2400 assert(action->conf);
2402 items = ((const struct rte_flow_action_vxlan_encap *)
2403 action->conf)->definition;
2405 for (; items->type != RTE_FLOW_ITEM_TYPE_END; items++) {
2406 switch (items->type) {
2407 case RTE_FLOW_ITEM_TYPE_VOID:
2409 case RTE_FLOW_ITEM_TYPE_ETH:
2410 /* This item does not require message buffer. */
2412 case RTE_FLOW_ITEM_TYPE_IPV4:
2413 size += SZ_NLATTR_DATA_OF(IPV4_ADDR_LEN) * 2;
2415 case RTE_FLOW_ITEM_TYPE_IPV6:
2416 size += SZ_NLATTR_DATA_OF(IPV6_ADDR_LEN) * 2;
2418 case RTE_FLOW_ITEM_TYPE_UDP: {
2419 const struct rte_flow_item_udp *udp = items->mask;
2421 size += SZ_NLATTR_TYPE_OF(uint16_t);
2422 if (!udp || udp->hdr.src_port != RTE_BE16(0x0000))
2423 size += SZ_NLATTR_TYPE_OF(uint16_t);
2426 case RTE_FLOW_ITEM_TYPE_VXLAN:
2427 size += SZ_NLATTR_TYPE_OF(uint32_t);
2432 "unsupported item %p type %d,"
2433 " items must be validated"
2434 " before flow creation",
2435 (const void *)items, items->type);
2443 * Calculate maximum size of memory for flow actions of Linux TC flower and
2444 * extract specified actions.
2446 * @param[in] actions
2447 * Pointer to the list of actions.
2448 * @param[out] action_flags
2449 * Pointer to the detected actions.
2452 * Maximum size of memory for actions.
2455 flow_tcf_get_actions_and_size(const struct rte_flow_action actions[],
2456 uint64_t *action_flags)
2461 size += SZ_NLATTR_NEST; /* TCA_FLOWER_ACT. */
2462 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
2463 switch (actions->type) {
2464 case RTE_FLOW_ACTION_TYPE_VOID:
2466 case RTE_FLOW_ACTION_TYPE_PORT_ID:
2467 size += SZ_NLATTR_NEST + /* na_act_index. */
2468 SZ_NLATTR_STRZ_OF("mirred") +
2469 SZ_NLATTR_NEST + /* TCA_ACT_OPTIONS. */
2470 SZ_NLATTR_TYPE_OF(struct tc_mirred);
2471 flags |= MLX5_FLOW_ACTION_PORT_ID;
2473 case RTE_FLOW_ACTION_TYPE_JUMP:
2474 size += SZ_NLATTR_NEST + /* na_act_index. */
2475 SZ_NLATTR_STRZ_OF("gact") +
2476 SZ_NLATTR_NEST + /* TCA_ACT_OPTIONS. */
2477 SZ_NLATTR_TYPE_OF(struct tc_gact);
2478 flags |= MLX5_FLOW_ACTION_JUMP;
2480 case RTE_FLOW_ACTION_TYPE_DROP:
2481 size += SZ_NLATTR_NEST + /* na_act_index. */
2482 SZ_NLATTR_STRZ_OF("gact") +
2483 SZ_NLATTR_NEST + /* TCA_ACT_OPTIONS. */
2484 SZ_NLATTR_TYPE_OF(struct tc_gact);
2485 flags |= MLX5_FLOW_ACTION_DROP;
2487 case RTE_FLOW_ACTION_TYPE_COUNT:
2489 case RTE_FLOW_ACTION_TYPE_OF_POP_VLAN:
2490 flags |= MLX5_FLOW_ACTION_OF_POP_VLAN;
2491 goto action_of_vlan;
2492 case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN:
2493 flags |= MLX5_FLOW_ACTION_OF_PUSH_VLAN;
2494 goto action_of_vlan;
2495 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID:
2496 flags |= MLX5_FLOW_ACTION_OF_SET_VLAN_VID;
2497 goto action_of_vlan;
2498 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP:
2499 flags |= MLX5_FLOW_ACTION_OF_SET_VLAN_PCP;
2500 goto action_of_vlan;
2502 size += SZ_NLATTR_NEST + /* na_act_index. */
2503 SZ_NLATTR_STRZ_OF("vlan") +
2504 SZ_NLATTR_NEST + /* TCA_ACT_OPTIONS. */
2505 SZ_NLATTR_TYPE_OF(struct tc_vlan) +
2506 SZ_NLATTR_TYPE_OF(uint16_t) +
2507 /* VLAN protocol. */
2508 SZ_NLATTR_TYPE_OF(uint16_t) + /* VLAN ID. */
2509 SZ_NLATTR_TYPE_OF(uint8_t); /* VLAN prio. */
2511 case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
2512 size += SZ_NLATTR_NEST + /* na_act_index. */
2513 SZ_NLATTR_STRZ_OF("tunnel_key") +
2514 SZ_NLATTR_NEST + /* TCA_ACT_OPTIONS. */
2515 SZ_NLATTR_TYPE_OF(uint8_t);
2516 size += SZ_NLATTR_TYPE_OF(struct tc_tunnel_key);
2517 size += flow_tcf_vxlan_encap_size(actions) +
2518 RTE_ALIGN_CEIL /* preceding encap params. */
2519 (sizeof(struct flow_tcf_vxlan_encap),
2521 flags |= MLX5_FLOW_ACTION_VXLAN_ENCAP;
2523 case RTE_FLOW_ACTION_TYPE_VXLAN_DECAP:
2524 size += SZ_NLATTR_NEST + /* na_act_index. */
2525 SZ_NLATTR_STRZ_OF("tunnel_key") +
2526 SZ_NLATTR_NEST + /* TCA_ACT_OPTIONS. */
2527 SZ_NLATTR_TYPE_OF(uint8_t);
2528 size += SZ_NLATTR_TYPE_OF(struct tc_tunnel_key);
2529 size += RTE_ALIGN_CEIL /* preceding decap params. */
2530 (sizeof(struct flow_tcf_vxlan_decap),
2532 flags |= MLX5_FLOW_ACTION_VXLAN_DECAP;
2534 case RTE_FLOW_ACTION_TYPE_SET_IPV4_SRC:
2535 case RTE_FLOW_ACTION_TYPE_SET_IPV4_DST:
2536 case RTE_FLOW_ACTION_TYPE_SET_IPV6_SRC:
2537 case RTE_FLOW_ACTION_TYPE_SET_IPV6_DST:
2538 case RTE_FLOW_ACTION_TYPE_SET_TP_SRC:
2539 case RTE_FLOW_ACTION_TYPE_SET_TP_DST:
2540 case RTE_FLOW_ACTION_TYPE_SET_TTL:
2541 case RTE_FLOW_ACTION_TYPE_DEC_TTL:
2542 case RTE_FLOW_ACTION_TYPE_SET_MAC_SRC:
2543 case RTE_FLOW_ACTION_TYPE_SET_MAC_DST:
2544 size += flow_tcf_get_pedit_actions_size(&actions,
2549 "unsupported action %p type %d,"
2550 " items must be validated before flow creation",
2551 (const void *)actions, actions->type);
2555 *action_flags = flags;
2560 * Brand rtnetlink buffer with unique handle.
2562 * This handle should be unique for a given network interface to avoid
2566 * Pointer to Netlink message.
2568 * Unique 32-bit handle to use.
2571 flow_tcf_nl_brand(struct nlmsghdr *nlh, uint32_t handle)
2573 struct tcmsg *tcm = mnl_nlmsg_get_payload(nlh);
2575 tcm->tcm_handle = handle;
2576 DRV_LOG(DEBUG, "Netlink msg %p is branded with handle %x",
2577 (void *)nlh, handle);
2581 * Prepare a flow object for Linux TC flower. It calculates the maximum size of
2582 * memory required, allocates the memory, initializes Netlink message headers
2583 * and set unique TC message handle.
2586 * Pointer to the flow attributes.
2588 * Pointer to the list of items.
2589 * @param[in] actions
2590 * Pointer to the list of actions.
2592 * Pointer to the error structure.
2595 * Pointer to mlx5_flow object on success,
2596 * otherwise NULL and rte_ernno is set.
2598 static struct mlx5_flow *
2599 flow_tcf_prepare(const struct rte_flow_attr *attr,
2600 const struct rte_flow_item items[],
2601 const struct rte_flow_action actions[],
2602 struct rte_flow_error *error)
2604 size_t size = RTE_ALIGN_CEIL
2605 (sizeof(struct mlx5_flow),
2606 alignof(struct flow_tcf_tunnel_hdr)) +
2607 MNL_ALIGN(sizeof(struct nlmsghdr)) +
2608 MNL_ALIGN(sizeof(struct tcmsg));
2609 struct mlx5_flow *dev_flow;
2610 uint64_t action_flags = 0;
2611 struct nlmsghdr *nlh;
2613 uint8_t *sp, *tun = NULL;
2615 size += flow_tcf_get_items_size(attr, items, &action_flags);
2616 size += flow_tcf_get_actions_and_size(actions, &action_flags);
2617 dev_flow = rte_zmalloc(__func__, size, MNL_ALIGNTO);
2619 rte_flow_error_set(error, ENOMEM,
2620 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
2621 "not enough memory to create E-Switch flow");
2624 sp = (uint8_t *)(dev_flow + 1);
2625 if (action_flags & MLX5_FLOW_ACTION_VXLAN_ENCAP) {
2627 (sp, alignof(struct flow_tcf_tunnel_hdr));
2629 sp += RTE_ALIGN_CEIL
2630 (sizeof(struct flow_tcf_vxlan_encap),
2633 size -= RTE_ALIGN_CEIL
2634 (sizeof(struct flow_tcf_vxlan_encap),
2637 } else if (action_flags & MLX5_FLOW_ACTION_VXLAN_DECAP) {
2639 (sp, alignof(struct flow_tcf_tunnel_hdr));
2641 sp += RTE_ALIGN_CEIL
2642 (sizeof(struct flow_tcf_vxlan_decap),
2645 size -= RTE_ALIGN_CEIL
2646 (sizeof(struct flow_tcf_vxlan_decap),
2650 sp = RTE_PTR_ALIGN(sp, MNL_ALIGNTO);
2652 nlh = mnl_nlmsg_put_header(sp);
2653 tcm = mnl_nlmsg_put_extra_header(nlh, sizeof(*tcm));
2654 *dev_flow = (struct mlx5_flow){
2655 .tcf = (struct mlx5_flow_tcf){
2657 .nlsize = size - RTE_ALIGN_CEIL
2658 (sizeof(struct mlx5_flow),
2659 alignof(struct flow_tcf_tunnel_hdr)),
2661 .tunnel = (struct flow_tcf_tunnel_hdr *)tun,
2666 if (action_flags & MLX5_FLOW_ACTION_VXLAN_DECAP)
2667 dev_flow->tcf.tunnel->type = FLOW_TCF_TUNACT_VXLAN_DECAP;
2668 else if (action_flags & MLX5_FLOW_ACTION_VXLAN_ENCAP)
2669 dev_flow->tcf.tunnel->type = FLOW_TCF_TUNACT_VXLAN_ENCAP;
2671 * Generate a reasonably unique handle based on the address of the
2674 * This is straightforward on 32-bit systems where the flow pointer can
2675 * be used directly. Otherwise, its least significant part is taken
2676 * after shifting it by the previous power of two of the pointed buffer
2679 if (sizeof(dev_flow) <= 4)
2680 flow_tcf_nl_brand(nlh, (uintptr_t)dev_flow);
2682 flow_tcf_nl_brand(nlh, (uintptr_t)dev_flow >>
2683 rte_log2_u32(rte_align32prevpow2(size)));
2688 * Make adjustments for supporting count actions.
2691 * Pointer to the Ethernet device structure.
2692 * @param[in] dev_flow
2693 * Pointer to mlx5_flow.
2695 * Pointer to error structure.
2698 * 0 On success else a negative errno value is returned and rte_errno is set.
2701 flow_tcf_translate_action_count(struct rte_eth_dev *dev __rte_unused,
2702 struct mlx5_flow *dev_flow,
2703 struct rte_flow_error *error)
2705 struct rte_flow *flow = dev_flow->flow;
2707 if (!flow->counter) {
2708 flow->counter = flow_tcf_counter_new();
2710 return rte_flow_error_set(error, rte_errno,
2711 RTE_FLOW_ERROR_TYPE_ACTION,
2713 "cannot get counter"
2720 * Convert VXLAN VNI to 32-bit integer.
2723 * VXLAN VNI in 24-bit wire format.
2726 * VXLAN VNI as a 32-bit integer value in network endian.
2728 static inline rte_be32_t
2729 vxlan_vni_as_be32(const uint8_t vni[3])
2735 .vni = { 0, vni[0], vni[1], vni[2] },
2741 * Helper function to process RTE_FLOW_ITEM_TYPE_ETH entry in configuration
2742 * of action RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP. Fills the MAC address fields
2743 * in the encapsulation parameters structure. The item must be prevalidated,
2744 * no any validation checks performed by function.
2747 * RTE_FLOW_ITEM_TYPE_ETH entry specification.
2749 * RTE_FLOW_ITEM_TYPE_ETH entry mask.
2751 * Structure to fill the gathered MAC address data.
2754 flow_tcf_parse_vxlan_encap_eth(const struct rte_flow_item_eth *spec,
2755 const struct rte_flow_item_eth *mask,
2756 struct flow_tcf_vxlan_encap *encap)
2758 /* Item must be validated before. No redundant checks. */
2760 if (!mask || !memcmp(&mask->dst,
2761 &rte_flow_item_eth_mask.dst,
2762 sizeof(rte_flow_item_eth_mask.dst))) {
2764 * Ethernet addresses are not supported by
2765 * tc as tunnel_key parameters. Destination
2766 * address is needed to form encap packet
2767 * header and retrieved by kernel from
2768 * implicit sources (ARP table, etc),
2769 * address masks are not supported at all.
2771 encap->eth.dst = spec->dst;
2772 encap->mask |= FLOW_TCF_ENCAP_ETH_DST;
2774 if (!mask || !memcmp(&mask->src,
2775 &rte_flow_item_eth_mask.src,
2776 sizeof(rte_flow_item_eth_mask.src))) {
2778 * Ethernet addresses are not supported by
2779 * tc as tunnel_key parameters. Source ethernet
2780 * address is ignored anyway.
2782 encap->eth.src = spec->src;
2783 encap->mask |= FLOW_TCF_ENCAP_ETH_SRC;
2788 * Helper function to process RTE_FLOW_ITEM_TYPE_IPV4 entry in configuration
2789 * of action RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP. Fills the IPV4 address fields
2790 * in the encapsulation parameters structure. The item must be prevalidated,
2791 * no any validation checks performed by function.
2794 * RTE_FLOW_ITEM_TYPE_IPV4 entry specification.
2796 * Structure to fill the gathered IPV4 address data.
2799 flow_tcf_parse_vxlan_encap_ipv4(const struct rte_flow_item_ipv4 *spec,
2800 struct flow_tcf_vxlan_encap *encap)
2802 /* Item must be validated before. No redundant checks. */
2804 encap->ipv4.dst = spec->hdr.dst_addr;
2805 encap->ipv4.src = spec->hdr.src_addr;
2806 encap->mask |= FLOW_TCF_ENCAP_IPV4_SRC |
2807 FLOW_TCF_ENCAP_IPV4_DST;
2811 * Helper function to process RTE_FLOW_ITEM_TYPE_IPV6 entry in configuration
2812 * of action RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP. Fills the IPV6 address fields
2813 * in the encapsulation parameters structure. The item must be prevalidated,
2814 * no any validation checks performed by function.
2817 * RTE_FLOW_ITEM_TYPE_IPV6 entry specification.
2819 * Structure to fill the gathered IPV6 address data.
2822 flow_tcf_parse_vxlan_encap_ipv6(const struct rte_flow_item_ipv6 *spec,
2823 struct flow_tcf_vxlan_encap *encap)
2825 /* Item must be validated before. No redundant checks. */
2827 memcpy(encap->ipv6.dst, spec->hdr.dst_addr, IPV6_ADDR_LEN);
2828 memcpy(encap->ipv6.src, spec->hdr.src_addr, IPV6_ADDR_LEN);
2829 encap->mask |= FLOW_TCF_ENCAP_IPV6_SRC |
2830 FLOW_TCF_ENCAP_IPV6_DST;
2834 * Helper function to process RTE_FLOW_ITEM_TYPE_UDP entry in configuration
2835 * of action RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP. Fills the UDP port fields
2836 * in the encapsulation parameters structure. The item must be prevalidated,
2837 * no any validation checks performed by function.
2840 * RTE_FLOW_ITEM_TYPE_UDP entry specification.
2842 * RTE_FLOW_ITEM_TYPE_UDP entry mask.
2844 * Structure to fill the gathered UDP port data.
2847 flow_tcf_parse_vxlan_encap_udp(const struct rte_flow_item_udp *spec,
2848 const struct rte_flow_item_udp *mask,
2849 struct flow_tcf_vxlan_encap *encap)
2852 encap->udp.dst = spec->hdr.dst_port;
2853 encap->mask |= FLOW_TCF_ENCAP_UDP_DST;
2854 if (!mask || mask->hdr.src_port != RTE_BE16(0x0000)) {
2855 encap->udp.src = spec->hdr.src_port;
2856 encap->mask |= FLOW_TCF_ENCAP_IPV4_SRC;
2861 * Helper function to process RTE_FLOW_ITEM_TYPE_VXLAN entry in configuration
2862 * of action RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP. Fills the VNI fields
2863 * in the encapsulation parameters structure. The item must be prevalidated,
2864 * no any validation checks performed by function.
2867 * RTE_FLOW_ITEM_TYPE_VXLAN entry specification.
2869 * Structure to fill the gathered VNI address data.
2872 flow_tcf_parse_vxlan_encap_vni(const struct rte_flow_item_vxlan *spec,
2873 struct flow_tcf_vxlan_encap *encap)
2875 /* Item must be validated before. Do not redundant checks. */
2877 memcpy(encap->vxlan.vni, spec->vni, sizeof(encap->vxlan.vni));
2878 encap->mask |= FLOW_TCF_ENCAP_VXLAN_VNI;
2882 * Populate consolidated encapsulation object from list of pattern items.
2884 * Helper function to process configuration of action such as
2885 * RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP. The item list should be
2886 * validated, there is no way to return an meaningful error.
2889 * RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP action object.
2890 * List of pattern items to gather data from.
2892 * Structure to fill gathered data.
2895 flow_tcf_vxlan_encap_parse(const struct rte_flow_action *action,
2896 struct flow_tcf_vxlan_encap *encap)
2899 const struct rte_flow_item_eth *eth;
2900 const struct rte_flow_item_ipv4 *ipv4;
2901 const struct rte_flow_item_ipv6 *ipv6;
2902 const struct rte_flow_item_udp *udp;
2903 const struct rte_flow_item_vxlan *vxlan;
2905 const struct rte_flow_item *items;
2907 assert(action->type == RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP);
2908 assert(action->conf);
2910 items = ((const struct rte_flow_action_vxlan_encap *)
2911 action->conf)->definition;
2913 for (; items->type != RTE_FLOW_ITEM_TYPE_END; items++) {
2914 switch (items->type) {
2915 case RTE_FLOW_ITEM_TYPE_VOID:
2917 case RTE_FLOW_ITEM_TYPE_ETH:
2918 mask.eth = items->mask;
2919 spec.eth = items->spec;
2920 flow_tcf_parse_vxlan_encap_eth(spec.eth, mask.eth,
2923 case RTE_FLOW_ITEM_TYPE_IPV4:
2924 spec.ipv4 = items->spec;
2925 flow_tcf_parse_vxlan_encap_ipv4(spec.ipv4, encap);
2927 case RTE_FLOW_ITEM_TYPE_IPV6:
2928 spec.ipv6 = items->spec;
2929 flow_tcf_parse_vxlan_encap_ipv6(spec.ipv6, encap);
2931 case RTE_FLOW_ITEM_TYPE_UDP:
2932 mask.udp = items->mask;
2933 spec.udp = items->spec;
2934 flow_tcf_parse_vxlan_encap_udp(spec.udp, mask.udp,
2937 case RTE_FLOW_ITEM_TYPE_VXLAN:
2938 spec.vxlan = items->spec;
2939 flow_tcf_parse_vxlan_encap_vni(spec.vxlan, encap);
2944 "unsupported item %p type %d,"
2945 " items must be validated"
2946 " before flow creation",
2947 (const void *)items, items->type);
2955 * Translate flow for Linux TC flower and construct Netlink message.
2958 * Pointer to the priv structure.
2959 * @param[in, out] flow
2960 * Pointer to the sub flow.
2962 * Pointer to the flow attributes.
2964 * Pointer to the list of items.
2965 * @param[in] actions
2966 * Pointer to the list of actions.
2968 * Pointer to the error structure.
2971 * 0 on success, a negative errno value otherwise and rte_ernno is set.
2974 flow_tcf_translate(struct rte_eth_dev *dev, struct mlx5_flow *dev_flow,
2975 const struct rte_flow_attr *attr,
2976 const struct rte_flow_item items[],
2977 const struct rte_flow_action actions[],
2978 struct rte_flow_error *error)
2981 const struct rte_flow_item_port_id *port_id;
2982 const struct rte_flow_item_eth *eth;
2983 const struct rte_flow_item_vlan *vlan;
2984 const struct rte_flow_item_ipv4 *ipv4;
2985 const struct rte_flow_item_ipv6 *ipv6;
2986 const struct rte_flow_item_tcp *tcp;
2987 const struct rte_flow_item_udp *udp;
2988 const struct rte_flow_item_vxlan *vxlan;
2991 const struct rte_flow_action_port_id *port_id;
2992 const struct rte_flow_action_jump *jump;
2993 const struct rte_flow_action_of_push_vlan *of_push_vlan;
2994 const struct rte_flow_action_of_set_vlan_vid *
2996 const struct rte_flow_action_of_set_vlan_pcp *
3000 struct flow_tcf_tunnel_hdr *hdr;
3001 struct flow_tcf_vxlan_decap *vxlan;
3006 struct flow_tcf_tunnel_hdr *hdr;
3007 struct flow_tcf_vxlan_encap *vxlan;
3011 struct flow_tcf_ptoi ptoi[PTOI_TABLE_SZ_MAX(dev)];
3012 struct nlmsghdr *nlh = dev_flow->tcf.nlh;
3013 struct tcmsg *tcm = dev_flow->tcf.tcm;
3014 uint32_t na_act_index_cur;
3015 bool eth_type_set = 0;
3016 bool vlan_present = 0;
3017 bool vlan_eth_type_set = 0;
3018 bool ip_proto_set = 0;
3019 bool tunnel_outer = 0;
3020 struct nlattr *na_flower;
3021 struct nlattr *na_flower_act;
3022 struct nlattr *na_vlan_id = NULL;
3023 struct nlattr *na_vlan_priority = NULL;
3024 uint64_t item_flags = 0;
3027 claim_nonzero(flow_tcf_build_ptoi_table(dev, ptoi,
3028 PTOI_TABLE_SZ_MAX(dev)));
3029 if (dev_flow->tcf.tunnel) {
3030 switch (dev_flow->tcf.tunnel->type) {
3031 case FLOW_TCF_TUNACT_VXLAN_DECAP:
3032 decap.vxlan = dev_flow->tcf.vxlan_decap;
3035 case FLOW_TCF_TUNACT_VXLAN_ENCAP:
3036 encap.vxlan = dev_flow->tcf.vxlan_encap;
3038 /* New tunnel actions can be added here. */
3044 nlh = dev_flow->tcf.nlh;
3045 tcm = dev_flow->tcf.tcm;
3046 /* Prepare API must have been called beforehand. */
3047 assert(nlh != NULL && tcm != NULL);
3048 tcm->tcm_family = AF_UNSPEC;
3049 tcm->tcm_ifindex = ptoi[0].ifindex;
3050 tcm->tcm_parent = TC_H_MAKE(TC_H_INGRESS, TC_H_MIN_INGRESS);
3052 * Priority cannot be zero to prevent the kernel from picking one
3055 tcm->tcm_info = TC_H_MAKE((attr->priority + 1) << 16,
3056 RTE_BE16(ETH_P_ALL));
3057 if (attr->group > 0)
3058 mnl_attr_put_u32(nlh, TCA_CHAIN, attr->group);
3059 mnl_attr_put_strz(nlh, TCA_KIND, "flower");
3060 na_flower = mnl_attr_nest_start(nlh, TCA_OPTIONS);
3061 for (; items->type != RTE_FLOW_ITEM_TYPE_END; items++) {
3064 switch (items->type) {
3065 case RTE_FLOW_ITEM_TYPE_VOID:
3067 case RTE_FLOW_ITEM_TYPE_PORT_ID:
3068 mask.port_id = flow_tcf_item_mask
3069 (items, &rte_flow_item_port_id_mask,
3070 &flow_tcf_mask_supported.port_id,
3071 &flow_tcf_mask_empty.port_id,
3072 sizeof(flow_tcf_mask_supported.port_id),
3074 assert(mask.port_id);
3075 if (mask.port_id == &flow_tcf_mask_empty.port_id)
3077 spec.port_id = items->spec;
3078 if (!mask.port_id->id)
3081 for (i = 0; ptoi[i].ifindex; ++i)
3082 if (ptoi[i].port_id == spec.port_id->id)
3084 assert(ptoi[i].ifindex);
3085 tcm->tcm_ifindex = ptoi[i].ifindex;
3087 case RTE_FLOW_ITEM_TYPE_ETH:
3088 item_flags |= (item_flags & MLX5_FLOW_LAYER_TUNNEL) ?
3089 MLX5_FLOW_LAYER_INNER_L2 :
3090 MLX5_FLOW_LAYER_OUTER_L2;
3091 mask.eth = flow_tcf_item_mask
3092 (items, &rte_flow_item_eth_mask,
3093 &flow_tcf_mask_supported.eth,
3094 &flow_tcf_mask_empty.eth,
3095 sizeof(flow_tcf_mask_supported.eth),
3098 if (mask.eth == &flow_tcf_mask_empty.eth)
3100 spec.eth = items->spec;
3103 "outer L2 addresses cannot be"
3104 " forced is outer ones for tunnel,"
3105 " parameter is ignored");
3108 if (mask.eth->type) {
3109 mnl_attr_put_u16(nlh, TCA_FLOWER_KEY_ETH_TYPE,
3113 if (!is_zero_ether_addr(&mask.eth->dst)) {
3114 mnl_attr_put(nlh, TCA_FLOWER_KEY_ETH_DST,
3116 spec.eth->dst.addr_bytes);
3117 mnl_attr_put(nlh, TCA_FLOWER_KEY_ETH_DST_MASK,
3119 mask.eth->dst.addr_bytes);
3121 if (!is_zero_ether_addr(&mask.eth->src)) {
3122 mnl_attr_put(nlh, TCA_FLOWER_KEY_ETH_SRC,
3124 spec.eth->src.addr_bytes);
3125 mnl_attr_put(nlh, TCA_FLOWER_KEY_ETH_SRC_MASK,
3127 mask.eth->src.addr_bytes);
3129 assert(dev_flow->tcf.nlsize >= nlh->nlmsg_len);
3131 case RTE_FLOW_ITEM_TYPE_VLAN:
3134 assert(!tunnel_outer);
3135 item_flags |= MLX5_FLOW_LAYER_OUTER_VLAN;
3136 mask.vlan = flow_tcf_item_mask
3137 (items, &rte_flow_item_vlan_mask,
3138 &flow_tcf_mask_supported.vlan,
3139 &flow_tcf_mask_empty.vlan,
3140 sizeof(flow_tcf_mask_supported.vlan),
3144 mnl_attr_put_u16(nlh, TCA_FLOWER_KEY_ETH_TYPE,
3145 RTE_BE16(ETH_P_8021Q));
3148 if (mask.vlan == &flow_tcf_mask_empty.vlan)
3150 spec.vlan = items->spec;
3151 if (mask.vlan->inner_type) {
3152 mnl_attr_put_u16(nlh,
3153 TCA_FLOWER_KEY_VLAN_ETH_TYPE,
3154 spec.vlan->inner_type);
3155 vlan_eth_type_set = 1;
3157 if (mask.vlan->tci & RTE_BE16(0xe000))
3158 mnl_attr_put_u8(nlh, TCA_FLOWER_KEY_VLAN_PRIO,
3160 (spec.vlan->tci) >> 13) & 0x7);
3161 if (mask.vlan->tci & RTE_BE16(0x0fff))
3162 mnl_attr_put_u16(nlh, TCA_FLOWER_KEY_VLAN_ID,
3166 assert(dev_flow->tcf.nlsize >= nlh->nlmsg_len);
3168 case RTE_FLOW_ITEM_TYPE_IPV4:
3169 item_flags |= (item_flags & MLX5_FLOW_LAYER_TUNNEL) ?
3170 MLX5_FLOW_LAYER_INNER_L3_IPV4 :
3171 MLX5_FLOW_LAYER_OUTER_L3_IPV4;
3172 mask.ipv4 = flow_tcf_item_mask
3173 (items, &rte_flow_item_ipv4_mask,
3174 &flow_tcf_mask_supported.ipv4,
3175 &flow_tcf_mask_empty.ipv4,
3176 sizeof(flow_tcf_mask_supported.ipv4),
3179 spec.ipv4 = items->spec;
3180 if (!tunnel_outer) {
3181 if (!eth_type_set ||
3182 (!vlan_eth_type_set && vlan_present))
3186 TCA_FLOWER_KEY_VLAN_ETH_TYPE :
3187 TCA_FLOWER_KEY_ETH_TYPE,
3188 RTE_BE16(ETH_P_IP));
3190 vlan_eth_type_set = 1;
3192 if (!tunnel_outer && mask.ipv4->hdr.next_proto_id) {
3194 * No way to set IP protocol for outer tunnel
3195 * layers. Usually it is fixed, for example,
3196 * to UDP for VXLAN/GPE.
3198 assert(spec.ipv4); /* Mask is not empty. */
3199 mnl_attr_put_u8(nlh, TCA_FLOWER_KEY_IP_PROTO,
3200 spec.ipv4->hdr.next_proto_id);
3203 if (mask.ipv4 == &flow_tcf_mask_empty.ipv4 ||
3204 (!mask.ipv4->hdr.src_addr &&
3205 !mask.ipv4->hdr.dst_addr)) {
3209 * For tunnel outer we must set outer IP key
3210 * anyway, even if the specification/mask is
3211 * empty. There is no another way to tell
3212 * kernel about he outer layer protocol.
3215 (nlh, TCA_FLOWER_KEY_ENC_IPV4_SRC,
3216 mask.ipv4->hdr.src_addr);
3218 (nlh, TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK,
3219 mask.ipv4->hdr.src_addr);
3220 assert(dev_flow->tcf.nlsize >= nlh->nlmsg_len);
3223 if (mask.ipv4->hdr.src_addr) {
3225 (nlh, tunnel_outer ?
3226 TCA_FLOWER_KEY_ENC_IPV4_SRC :
3227 TCA_FLOWER_KEY_IPV4_SRC,
3228 spec.ipv4->hdr.src_addr);
3230 (nlh, tunnel_outer ?
3231 TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK :
3232 TCA_FLOWER_KEY_IPV4_SRC_MASK,
3233 mask.ipv4->hdr.src_addr);
3235 if (mask.ipv4->hdr.dst_addr) {
3237 (nlh, tunnel_outer ?
3238 TCA_FLOWER_KEY_ENC_IPV4_DST :
3239 TCA_FLOWER_KEY_IPV4_DST,
3240 spec.ipv4->hdr.dst_addr);
3242 (nlh, tunnel_outer ?
3243 TCA_FLOWER_KEY_ENC_IPV4_DST_MASK :
3244 TCA_FLOWER_KEY_IPV4_DST_MASK,
3245 mask.ipv4->hdr.dst_addr);
3247 assert(dev_flow->tcf.nlsize >= nlh->nlmsg_len);
3249 case RTE_FLOW_ITEM_TYPE_IPV6: {
3250 bool ipv6_src, ipv6_dst;
3252 item_flags |= (item_flags & MLX5_FLOW_LAYER_TUNNEL) ?
3253 MLX5_FLOW_LAYER_INNER_L3_IPV6 :
3254 MLX5_FLOW_LAYER_OUTER_L3_IPV6;
3255 mask.ipv6 = flow_tcf_item_mask
3256 (items, &rte_flow_item_ipv6_mask,
3257 &flow_tcf_mask_supported.ipv6,
3258 &flow_tcf_mask_empty.ipv6,
3259 sizeof(flow_tcf_mask_supported.ipv6),
3262 spec.ipv6 = items->spec;
3263 if (!tunnel_outer) {
3264 if (!eth_type_set ||
3265 (!vlan_eth_type_set && vlan_present))
3269 TCA_FLOWER_KEY_VLAN_ETH_TYPE :
3270 TCA_FLOWER_KEY_ETH_TYPE,
3271 RTE_BE16(ETH_P_IPV6));
3273 vlan_eth_type_set = 1;
3275 if (!tunnel_outer && mask.ipv6->hdr.proto) {
3277 * No way to set IP protocol for outer tunnel
3278 * layers. Usually it is fixed, for example,
3279 * to UDP for VXLAN/GPE.
3281 assert(spec.ipv6); /* Mask is not empty. */
3282 mnl_attr_put_u8(nlh, TCA_FLOWER_KEY_IP_PROTO,
3283 spec.ipv6->hdr.proto);
3286 ipv6_dst = !IN6_IS_ADDR_UNSPECIFIED
3287 (mask.ipv6->hdr.dst_addr);
3288 ipv6_src = !IN6_IS_ADDR_UNSPECIFIED
3289 (mask.ipv6->hdr.src_addr);
3290 if (mask.ipv6 == &flow_tcf_mask_empty.ipv6 ||
3291 (!ipv6_dst && !ipv6_src)) {
3295 * For tunnel outer we must set outer IP key
3296 * anyway, even if the specification/mask is
3297 * empty. There is no another way to tell
3298 * kernel about he outer layer protocol.
3301 TCA_FLOWER_KEY_ENC_IPV6_SRC,
3303 mask.ipv6->hdr.src_addr);
3305 TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK,
3307 mask.ipv6->hdr.src_addr);
3308 assert(dev_flow->tcf.nlsize >= nlh->nlmsg_len);
3312 mnl_attr_put(nlh, tunnel_outer ?
3313 TCA_FLOWER_KEY_ENC_IPV6_SRC :
3314 TCA_FLOWER_KEY_IPV6_SRC,
3316 spec.ipv6->hdr.src_addr);
3317 mnl_attr_put(nlh, tunnel_outer ?
3318 TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK :
3319 TCA_FLOWER_KEY_IPV6_SRC_MASK,
3321 mask.ipv6->hdr.src_addr);
3324 mnl_attr_put(nlh, tunnel_outer ?
3325 TCA_FLOWER_KEY_ENC_IPV6_DST :
3326 TCA_FLOWER_KEY_IPV6_DST,
3328 spec.ipv6->hdr.dst_addr);
3329 mnl_attr_put(nlh, tunnel_outer ?
3330 TCA_FLOWER_KEY_ENC_IPV6_DST_MASK :
3331 TCA_FLOWER_KEY_IPV6_DST_MASK,
3333 mask.ipv6->hdr.dst_addr);
3335 assert(dev_flow->tcf.nlsize >= nlh->nlmsg_len);
3338 case RTE_FLOW_ITEM_TYPE_UDP:
3339 item_flags |= (item_flags & MLX5_FLOW_LAYER_TUNNEL) ?
3340 MLX5_FLOW_LAYER_INNER_L4_UDP :
3341 MLX5_FLOW_LAYER_OUTER_L4_UDP;
3342 mask.udp = flow_tcf_item_mask
3343 (items, &rte_flow_item_udp_mask,
3344 &flow_tcf_mask_supported.udp,
3345 &flow_tcf_mask_empty.udp,
3346 sizeof(flow_tcf_mask_supported.udp),
3349 spec.udp = items->spec;
3350 if (!tunnel_outer) {
3353 (nlh, TCA_FLOWER_KEY_IP_PROTO,
3355 if (mask.udp == &flow_tcf_mask_empty.udp)
3358 assert(mask.udp != &flow_tcf_mask_empty.udp);
3359 decap.vxlan->udp_port =
3361 (spec.udp->hdr.dst_port);
3363 if (mask.udp->hdr.src_port) {
3365 (nlh, tunnel_outer ?
3366 TCA_FLOWER_KEY_ENC_UDP_SRC_PORT :
3367 TCA_FLOWER_KEY_UDP_SRC,
3368 spec.udp->hdr.src_port);
3370 (nlh, tunnel_outer ?
3371 TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK :
3372 TCA_FLOWER_KEY_UDP_SRC_MASK,
3373 mask.udp->hdr.src_port);
3375 if (mask.udp->hdr.dst_port) {
3377 (nlh, tunnel_outer ?
3378 TCA_FLOWER_KEY_ENC_UDP_DST_PORT :
3379 TCA_FLOWER_KEY_UDP_DST,
3380 spec.udp->hdr.dst_port);
3382 (nlh, tunnel_outer ?
3383 TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK :
3384 TCA_FLOWER_KEY_UDP_DST_MASK,
3385 mask.udp->hdr.dst_port);
3387 assert(dev_flow->tcf.nlsize >= nlh->nlmsg_len);
3389 case RTE_FLOW_ITEM_TYPE_TCP:
3390 item_flags |= (item_flags & MLX5_FLOW_LAYER_TUNNEL) ?
3391 MLX5_FLOW_LAYER_INNER_L4_TCP :
3392 MLX5_FLOW_LAYER_OUTER_L4_TCP;
3393 mask.tcp = flow_tcf_item_mask
3394 (items, &rte_flow_item_tcp_mask,
3395 &flow_tcf_mask_supported.tcp,
3396 &flow_tcf_mask_empty.tcp,
3397 sizeof(flow_tcf_mask_supported.tcp),
3401 mnl_attr_put_u8(nlh, TCA_FLOWER_KEY_IP_PROTO,
3403 if (mask.tcp == &flow_tcf_mask_empty.tcp)
3405 spec.tcp = items->spec;
3406 if (mask.tcp->hdr.src_port) {
3407 mnl_attr_put_u16(nlh, TCA_FLOWER_KEY_TCP_SRC,
3408 spec.tcp->hdr.src_port);
3409 mnl_attr_put_u16(nlh,
3410 TCA_FLOWER_KEY_TCP_SRC_MASK,
3411 mask.tcp->hdr.src_port);
3413 if (mask.tcp->hdr.dst_port) {
3414 mnl_attr_put_u16(nlh, TCA_FLOWER_KEY_TCP_DST,
3415 spec.tcp->hdr.dst_port);
3416 mnl_attr_put_u16(nlh,
3417 TCA_FLOWER_KEY_TCP_DST_MASK,
3418 mask.tcp->hdr.dst_port);
3420 if (mask.tcp->hdr.tcp_flags) {
3423 TCA_FLOWER_KEY_TCP_FLAGS,
3425 (spec.tcp->hdr.tcp_flags));
3428 TCA_FLOWER_KEY_TCP_FLAGS_MASK,
3430 (mask.tcp->hdr.tcp_flags));
3432 assert(dev_flow->tcf.nlsize >= nlh->nlmsg_len);
3434 case RTE_FLOW_ITEM_TYPE_VXLAN:
3435 assert(decap.vxlan);
3437 item_flags |= MLX5_FLOW_LAYER_VXLAN;
3438 spec.vxlan = items->spec;
3439 mnl_attr_put_u32(nlh,
3440 TCA_FLOWER_KEY_ENC_KEY_ID,
3441 vxlan_vni_as_be32(spec.vxlan->vni));
3442 assert(dev_flow->tcf.nlsize >= nlh->nlmsg_len);
3445 return rte_flow_error_set(error, ENOTSUP,
3446 RTE_FLOW_ERROR_TYPE_ITEM,
3447 NULL, "item not supported");
3450 na_flower_act = mnl_attr_nest_start(nlh, TCA_FLOWER_ACT);
3451 na_act_index_cur = 1;
3452 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
3453 struct nlattr *na_act_index;
3454 struct nlattr *na_act;
3455 unsigned int vlan_act;
3458 switch (actions->type) {
3459 case RTE_FLOW_ACTION_TYPE_VOID:
3461 case RTE_FLOW_ACTION_TYPE_PORT_ID:
3462 conf.port_id = actions->conf;
3463 if (conf.port_id->original)
3466 for (i = 0; ptoi[i].ifindex; ++i)
3467 if (ptoi[i].port_id == conf.port_id->id)
3469 assert(ptoi[i].ifindex);
3471 mnl_attr_nest_start(nlh, na_act_index_cur++);
3472 assert(na_act_index);
3473 mnl_attr_put_strz(nlh, TCA_ACT_KIND, "mirred");
3474 na_act = mnl_attr_nest_start(nlh, TCA_ACT_OPTIONS);
3477 assert(dev_flow->tcf.tunnel);
3478 dev_flow->tcf.tunnel->ifindex_ptr =
3479 &((struct tc_mirred *)
3480 mnl_attr_get_payload
3481 (mnl_nlmsg_get_payload_tail
3484 mnl_attr_put(nlh, TCA_MIRRED_PARMS,
3485 sizeof(struct tc_mirred),
3486 &(struct tc_mirred){
3487 .action = TC_ACT_STOLEN,
3488 .eaction = TCA_EGRESS_REDIR,
3489 .ifindex = ptoi[i].ifindex,
3491 mnl_attr_nest_end(nlh, na_act);
3492 mnl_attr_nest_end(nlh, na_act_index);
3494 case RTE_FLOW_ACTION_TYPE_JUMP:
3495 conf.jump = actions->conf;
3497 mnl_attr_nest_start(nlh, na_act_index_cur++);
3498 assert(na_act_index);
3499 mnl_attr_put_strz(nlh, TCA_ACT_KIND, "gact");
3500 na_act = mnl_attr_nest_start(nlh, TCA_ACT_OPTIONS);
3502 mnl_attr_put(nlh, TCA_GACT_PARMS,
3503 sizeof(struct tc_gact),
3505 .action = TC_ACT_GOTO_CHAIN |
3508 mnl_attr_nest_end(nlh, na_act);
3509 mnl_attr_nest_end(nlh, na_act_index);
3511 case RTE_FLOW_ACTION_TYPE_DROP:
3513 mnl_attr_nest_start(nlh, na_act_index_cur++);
3514 assert(na_act_index);
3515 mnl_attr_put_strz(nlh, TCA_ACT_KIND, "gact");
3516 na_act = mnl_attr_nest_start(nlh, TCA_ACT_OPTIONS);
3518 mnl_attr_put(nlh, TCA_GACT_PARMS,
3519 sizeof(struct tc_gact),
3521 .action = TC_ACT_SHOT,
3523 mnl_attr_nest_end(nlh, na_act);
3524 mnl_attr_nest_end(nlh, na_act_index);
3526 case RTE_FLOW_ACTION_TYPE_COUNT:
3528 * Driver adds the count action implicitly for
3529 * each rule it creates.
3531 ret = flow_tcf_translate_action_count(dev,
3536 case RTE_FLOW_ACTION_TYPE_OF_POP_VLAN:
3537 conf.of_push_vlan = NULL;
3538 vlan_act = TCA_VLAN_ACT_POP;
3539 goto action_of_vlan;
3540 case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN:
3541 conf.of_push_vlan = actions->conf;
3542 vlan_act = TCA_VLAN_ACT_PUSH;
3543 goto action_of_vlan;
3544 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID:
3545 conf.of_set_vlan_vid = actions->conf;
3547 goto override_na_vlan_id;
3548 vlan_act = TCA_VLAN_ACT_MODIFY;
3549 goto action_of_vlan;
3550 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP:
3551 conf.of_set_vlan_pcp = actions->conf;
3552 if (na_vlan_priority)
3553 goto override_na_vlan_priority;
3554 vlan_act = TCA_VLAN_ACT_MODIFY;
3555 goto action_of_vlan;
3558 mnl_attr_nest_start(nlh, na_act_index_cur++);
3559 assert(na_act_index);
3560 mnl_attr_put_strz(nlh, TCA_ACT_KIND, "vlan");
3561 na_act = mnl_attr_nest_start(nlh, TCA_ACT_OPTIONS);
3563 mnl_attr_put(nlh, TCA_VLAN_PARMS,
3564 sizeof(struct tc_vlan),
3566 .action = TC_ACT_PIPE,
3567 .v_action = vlan_act,
3569 if (vlan_act == TCA_VLAN_ACT_POP) {
3570 mnl_attr_nest_end(nlh, na_act);
3571 mnl_attr_nest_end(nlh, na_act_index);
3574 if (vlan_act == TCA_VLAN_ACT_PUSH)
3575 mnl_attr_put_u16(nlh,
3576 TCA_VLAN_PUSH_VLAN_PROTOCOL,
3577 conf.of_push_vlan->ethertype);
3578 na_vlan_id = mnl_nlmsg_get_payload_tail(nlh);
3579 mnl_attr_put_u16(nlh, TCA_VLAN_PAD, 0);
3580 na_vlan_priority = mnl_nlmsg_get_payload_tail(nlh);
3581 mnl_attr_put_u8(nlh, TCA_VLAN_PAD, 0);
3582 mnl_attr_nest_end(nlh, na_act);
3583 mnl_attr_nest_end(nlh, na_act_index);
3584 if (actions->type ==
3585 RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID) {
3586 override_na_vlan_id:
3587 na_vlan_id->nla_type = TCA_VLAN_PUSH_VLAN_ID;
3588 *(uint16_t *)mnl_attr_get_payload(na_vlan_id) =
3590 (conf.of_set_vlan_vid->vlan_vid);
3591 } else if (actions->type ==
3592 RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP) {
3593 override_na_vlan_priority:
3594 na_vlan_priority->nla_type =
3595 TCA_VLAN_PUSH_VLAN_PRIORITY;
3596 *(uint8_t *)mnl_attr_get_payload
3597 (na_vlan_priority) =
3598 conf.of_set_vlan_pcp->vlan_pcp;
3601 case RTE_FLOW_ACTION_TYPE_VXLAN_DECAP:
3602 assert(decap.vxlan);
3603 assert(dev_flow->tcf.tunnel);
3604 dev_flow->tcf.tunnel->ifindex_ptr =
3605 (unsigned int *)&tcm->tcm_ifindex;
3607 mnl_attr_nest_start(nlh, na_act_index_cur++);
3608 assert(na_act_index);
3609 mnl_attr_put_strz(nlh, TCA_ACT_KIND, "tunnel_key");
3610 na_act = mnl_attr_nest_start(nlh, TCA_ACT_OPTIONS);
3612 mnl_attr_put(nlh, TCA_TUNNEL_KEY_PARMS,
3613 sizeof(struct tc_tunnel_key),
3614 &(struct tc_tunnel_key){
3615 .action = TC_ACT_PIPE,
3616 .t_action = TCA_TUNNEL_KEY_ACT_RELEASE,
3618 mnl_attr_nest_end(nlh, na_act);
3619 mnl_attr_nest_end(nlh, na_act_index);
3620 assert(dev_flow->tcf.nlsize >= nlh->nlmsg_len);
3622 case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
3623 assert(encap.vxlan);
3624 flow_tcf_vxlan_encap_parse(actions, encap.vxlan);
3626 mnl_attr_nest_start(nlh, na_act_index_cur++);
3627 assert(na_act_index);
3628 mnl_attr_put_strz(nlh, TCA_ACT_KIND, "tunnel_key");
3629 na_act = mnl_attr_nest_start(nlh, TCA_ACT_OPTIONS);
3631 mnl_attr_put(nlh, TCA_TUNNEL_KEY_PARMS,
3632 sizeof(struct tc_tunnel_key),
3633 &(struct tc_tunnel_key){
3634 .action = TC_ACT_PIPE,
3635 .t_action = TCA_TUNNEL_KEY_ACT_SET,
3637 if (encap.vxlan->mask & FLOW_TCF_ENCAP_UDP_DST)
3638 mnl_attr_put_u16(nlh,
3639 TCA_TUNNEL_KEY_ENC_DST_PORT,
3640 encap.vxlan->udp.dst);
3641 if (encap.vxlan->mask & FLOW_TCF_ENCAP_IPV4_SRC)
3642 mnl_attr_put_u32(nlh,
3643 TCA_TUNNEL_KEY_ENC_IPV4_SRC,
3644 encap.vxlan->ipv4.src);
3645 if (encap.vxlan->mask & FLOW_TCF_ENCAP_IPV4_DST)
3646 mnl_attr_put_u32(nlh,
3647 TCA_TUNNEL_KEY_ENC_IPV4_DST,
3648 encap.vxlan->ipv4.dst);
3649 if (encap.vxlan->mask & FLOW_TCF_ENCAP_IPV6_SRC)
3651 TCA_TUNNEL_KEY_ENC_IPV6_SRC,
3652 sizeof(encap.vxlan->ipv6.src),
3653 &encap.vxlan->ipv6.src);
3654 if (encap.vxlan->mask & FLOW_TCF_ENCAP_IPV6_DST)
3656 TCA_TUNNEL_KEY_ENC_IPV6_DST,
3657 sizeof(encap.vxlan->ipv6.dst),
3658 &encap.vxlan->ipv6.dst);
3659 if (encap.vxlan->mask & FLOW_TCF_ENCAP_VXLAN_VNI)
3660 mnl_attr_put_u32(nlh,
3661 TCA_TUNNEL_KEY_ENC_KEY_ID,
3663 (encap.vxlan->vxlan.vni));
3664 mnl_attr_put_u8(nlh, TCA_TUNNEL_KEY_NO_CSUM, 0);
3665 mnl_attr_nest_end(nlh, na_act);
3666 mnl_attr_nest_end(nlh, na_act_index);
3667 assert(dev_flow->tcf.nlsize >= nlh->nlmsg_len);
3669 case RTE_FLOW_ACTION_TYPE_SET_IPV4_SRC:
3670 case RTE_FLOW_ACTION_TYPE_SET_IPV4_DST:
3671 case RTE_FLOW_ACTION_TYPE_SET_IPV6_SRC:
3672 case RTE_FLOW_ACTION_TYPE_SET_IPV6_DST:
3673 case RTE_FLOW_ACTION_TYPE_SET_TP_SRC:
3674 case RTE_FLOW_ACTION_TYPE_SET_TP_DST:
3675 case RTE_FLOW_ACTION_TYPE_SET_TTL:
3676 case RTE_FLOW_ACTION_TYPE_DEC_TTL:
3677 case RTE_FLOW_ACTION_TYPE_SET_MAC_SRC:
3678 case RTE_FLOW_ACTION_TYPE_SET_MAC_DST:
3680 mnl_attr_nest_start(nlh, na_act_index_cur++);
3681 flow_tcf_create_pedit_mnl_msg(nlh,
3682 &actions, item_flags);
3683 mnl_attr_nest_end(nlh, na_act_index);
3686 return rte_flow_error_set(error, ENOTSUP,
3687 RTE_FLOW_ERROR_TYPE_ACTION,
3689 "action not supported");
3693 assert(na_flower_act);
3694 mnl_attr_nest_end(nlh, na_flower_act);
3695 dev_flow->tcf.ptc_flags = mnl_attr_get_payload
3696 (mnl_nlmsg_get_payload_tail(nlh));
3697 mnl_attr_put_u32(nlh, TCA_FLOWER_FLAGS, decap.vxlan ?
3698 0 : TCA_CLS_FLAGS_SKIP_SW);
3699 mnl_attr_nest_end(nlh, na_flower);
3700 if (dev_flow->tcf.tunnel && dev_flow->tcf.tunnel->ifindex_ptr)
3701 dev_flow->tcf.tunnel->ifindex_org =
3702 *dev_flow->tcf.tunnel->ifindex_ptr;
3703 assert(dev_flow->tcf.nlsize >= nlh->nlmsg_len);
3708 * Send Netlink message with acknowledgment.
3711 * Flow context to use.
3713 * Message to send. This function always raises the NLM_F_ACK flag before
3716 * Callback handler for received message.
3718 * Context pointer for callback handler.
3721 * 0 on success, a negative errno value otherwise and rte_errno is set.
3724 flow_tcf_nl_ack(struct mlx5_flow_tcf_context *tcf,
3725 struct nlmsghdr *nlh,
3726 mnl_cb_t cb, void *arg)
3728 unsigned int portid = mnl_socket_get_portid(tcf->nl);
3729 uint32_t seq = tcf->seq++;
3735 /* seq 0 is reserved for kernel event-driven notifications. */
3738 nlh->nlmsg_seq = seq;
3739 nlh->nlmsg_flags |= NLM_F_ACK;
3740 ret = mnl_socket_sendto(tcf->nl, nlh, nlh->nlmsg_len);
3742 /* Message send error occurres. */
3746 nlh = (struct nlmsghdr *)(tcf->buf);
3748 * The following loop postpones non-fatal errors until multipart
3749 * messages are complete.
3752 ret = mnl_socket_recvfrom(tcf->nl, tcf->buf, tcf->buf_size);
3756 * In case of overflow Will receive till
3757 * end of multipart message. We may lost part
3758 * of reply messages but mark and return an error.
3760 if (err != ENOSPC ||
3761 !(nlh->nlmsg_flags & NLM_F_MULTI) ||
3762 nlh->nlmsg_type == NLMSG_DONE)
3765 ret = mnl_cb_run(nlh, ret, seq, portid, cb, arg);
3768 * libmnl returns 0 if DONE or
3769 * success ACK message found.
3775 * ACK message with error found
3776 * or some error occurred.
3781 /* We should continue receiving. */
3790 #define MNL_BUF_EXTRA_SPACE 16
3791 #define MNL_REQUEST_SIZE_MIN 256
3792 #define MNL_REQUEST_SIZE_MAX 2048
3793 #define MNL_REQUEST_SIZE RTE_MIN(RTE_MAX(sysconf(_SC_PAGESIZE), \
3794 MNL_REQUEST_SIZE_MIN), MNL_REQUEST_SIZE_MAX)
3796 /* Data structures used by flow_tcf_xxx_cb() routines. */
3797 struct tcf_nlcb_buf {
3798 LIST_ENTRY(tcf_nlcb_buf) next;
3800 alignas(struct nlmsghdr)
3801 uint8_t msg[]; /**< Netlink message data. */
3804 struct tcf_nlcb_context {
3805 unsigned int ifindex; /**< Base interface index. */
3807 LIST_HEAD(, tcf_nlcb_buf) nlbuf;
3811 * Allocate space for netlink command in buffer list
3813 * @param[in, out] ctx
3814 * Pointer to callback context with command buffers list.
3816 * Required size of data buffer to be allocated.
3819 * Pointer to allocated memory, aligned as message header.
3820 * NULL if some error occurred.
3822 static struct nlmsghdr *
3823 flow_tcf_alloc_nlcmd(struct tcf_nlcb_context *ctx, uint32_t size)
3825 struct tcf_nlcb_buf *buf;
3826 struct nlmsghdr *nlh;
3828 size = NLMSG_ALIGN(size);
3829 buf = LIST_FIRST(&ctx->nlbuf);
3830 if (buf && (buf->size + size) <= ctx->bufsize) {
3831 nlh = (struct nlmsghdr *)&buf->msg[buf->size];
3835 if (size > ctx->bufsize) {
3836 DRV_LOG(WARNING, "netlink: too long command buffer requested");
3839 buf = rte_malloc(__func__,
3840 ctx->bufsize + sizeof(struct tcf_nlcb_buf),
3841 alignof(struct tcf_nlcb_buf));
3843 DRV_LOG(WARNING, "netlink: no memory for command buffer");
3846 LIST_INSERT_HEAD(&ctx->nlbuf, buf, next);
3848 nlh = (struct nlmsghdr *)&buf->msg[0];
3853 * Send the buffers with prepared netlink commands. Scans the list and
3854 * sends all found buffers. Buffers are sent and freed anyway in order
3855 * to prevent memory leakage if some every message in received packet.
3858 * Context object initialized by mlx5_flow_tcf_context_create().
3859 * @param[in, out] ctx
3860 * Pointer to callback context with command buffers list.
3863 * Zero value on success, negative errno value otherwise
3864 * and rte_errno is set.
3867 flow_tcf_send_nlcmd(struct mlx5_flow_tcf_context *tcf,
3868 struct tcf_nlcb_context *ctx)
3870 struct tcf_nlcb_buf *bc = LIST_FIRST(&ctx->nlbuf);
3874 struct tcf_nlcb_buf *bn = LIST_NEXT(bc, next);
3875 struct nlmsghdr *nlh;
3879 while (msg < bc->size) {
3881 * Send Netlink commands from buffer in one by one
3882 * fashion. If we send multiple rule deletion commands
3883 * in one Netlink message and some error occurs it may
3884 * cause multiple ACK error messages and break sequence
3885 * numbers of Netlink communication, because we expect
3886 * the only one ACK reply.
3888 assert((bc->size - msg) >= sizeof(struct nlmsghdr));
3889 nlh = (struct nlmsghdr *)&bc->msg[msg];
3890 assert((bc->size - msg) >= nlh->nlmsg_len);
3891 msg += nlh->nlmsg_len;
3892 rc = flow_tcf_nl_ack(tcf, nlh, NULL, NULL);
3895 "netlink: cleanup error %d", rc);
3903 LIST_INIT(&ctx->nlbuf);
3908 * Collect local IP address rules with scope link attribute on specified
3909 * network device. This is callback routine called by libmnl mnl_cb_run()
3910 * in loop for every message in received packet.
3913 * Pointer to reply header.
3914 * @param[in, out] arg
3915 * Opaque data pointer for this callback.
3918 * A positive, nonzero value on success, negative errno value otherwise
3919 * and rte_errno is set.
3922 flow_tcf_collect_local_cb(const struct nlmsghdr *nlh, void *arg)
3924 struct tcf_nlcb_context *ctx = arg;
3925 struct nlmsghdr *cmd;
3926 struct ifaddrmsg *ifa;
3928 struct nlattr *na_local = NULL;
3929 struct nlattr *na_peer = NULL;
3930 unsigned char family;
3933 if (nlh->nlmsg_type != RTM_NEWADDR) {
3937 ifa = mnl_nlmsg_get_payload(nlh);
3938 family = ifa->ifa_family;
3939 if (ifa->ifa_index != ctx->ifindex ||
3940 ifa->ifa_scope != RT_SCOPE_LINK ||
3941 !(ifa->ifa_flags & IFA_F_PERMANENT) ||
3942 (family != AF_INET && family != AF_INET6))
3944 mnl_attr_for_each(na, nlh, sizeof(*ifa)) {
3945 switch (mnl_attr_get_type(na)) {
3953 if (na_local && na_peer)
3956 if (!na_local || !na_peer)
3958 /* Local rule found with scope link, permanent and assigned peer. */
3959 size = MNL_ALIGN(sizeof(struct nlmsghdr)) +
3960 MNL_ALIGN(sizeof(struct ifaddrmsg)) +
3961 (family == AF_INET6 ? 2 * SZ_NLATTR_DATA_OF(IPV6_ADDR_LEN)
3962 : 2 * SZ_NLATTR_TYPE_OF(uint32_t));
3963 cmd = flow_tcf_alloc_nlcmd(ctx, size);
3968 cmd = mnl_nlmsg_put_header(cmd);
3969 cmd->nlmsg_type = RTM_DELADDR;
3970 cmd->nlmsg_flags = NLM_F_REQUEST;
3971 ifa = mnl_nlmsg_put_extra_header(cmd, sizeof(*ifa));
3972 ifa->ifa_flags = IFA_F_PERMANENT;
3973 ifa->ifa_scope = RT_SCOPE_LINK;
3974 ifa->ifa_index = ctx->ifindex;
3975 if (family == AF_INET) {
3976 ifa->ifa_family = AF_INET;
3977 ifa->ifa_prefixlen = 32;
3978 mnl_attr_put_u32(cmd, IFA_LOCAL, mnl_attr_get_u32(na_local));
3979 mnl_attr_put_u32(cmd, IFA_ADDRESS, mnl_attr_get_u32(na_peer));
3981 ifa->ifa_family = AF_INET6;
3982 ifa->ifa_prefixlen = 128;
3983 mnl_attr_put(cmd, IFA_LOCAL, IPV6_ADDR_LEN,
3984 mnl_attr_get_payload(na_local));
3985 mnl_attr_put(cmd, IFA_ADDRESS, IPV6_ADDR_LEN,
3986 mnl_attr_get_payload(na_peer));
3988 assert(size == cmd->nlmsg_len);
3993 * Cleanup the local IP addresses on outer interface.
3996 * Context object initialized by mlx5_flow_tcf_context_create().
3997 * @param[in] ifindex
3998 * Network inferface index to perform cleanup.
4001 flow_tcf_encap_local_cleanup(struct mlx5_flow_tcf_context *tcf,
4002 unsigned int ifindex)
4004 struct nlmsghdr *nlh;
4005 struct ifaddrmsg *ifa;
4006 struct tcf_nlcb_context ctx = {
4008 .bufsize = MNL_REQUEST_SIZE,
4009 .nlbuf = LIST_HEAD_INITIALIZER(),
4015 * Seek and destroy leftovers of local IP addresses with
4016 * matching properties "scope link".
4018 nlh = mnl_nlmsg_put_header(tcf->buf);
4019 nlh->nlmsg_type = RTM_GETADDR;
4020 nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
4021 ifa = mnl_nlmsg_put_extra_header(nlh, sizeof(*ifa));
4022 ifa->ifa_family = AF_UNSPEC;
4023 ifa->ifa_index = ifindex;
4024 ifa->ifa_scope = RT_SCOPE_LINK;
4025 ret = flow_tcf_nl_ack(tcf, nlh, flow_tcf_collect_local_cb, &ctx);
4027 DRV_LOG(WARNING, "netlink: query device list error %d", ret);
4028 ret = flow_tcf_send_nlcmd(tcf, &ctx);
4030 DRV_LOG(WARNING, "netlink: device delete error %d", ret);
4034 * Collect neigh permament rules on specified network device.
4035 * This is callback routine called by libmnl mnl_cb_run() in loop for
4036 * every message in received packet.
4039 * Pointer to reply header.
4040 * @param[in, out] arg
4041 * Opaque data pointer for this callback.
4044 * A positive, nonzero value on success, negative errno value otherwise
4045 * and rte_errno is set.
4048 flow_tcf_collect_neigh_cb(const struct nlmsghdr *nlh, void *arg)
4050 struct tcf_nlcb_context *ctx = arg;
4051 struct nlmsghdr *cmd;
4054 struct nlattr *na_ip = NULL;
4055 struct nlattr *na_mac = NULL;
4056 unsigned char family;
4059 if (nlh->nlmsg_type != RTM_NEWNEIGH) {
4063 ndm = mnl_nlmsg_get_payload(nlh);
4064 family = ndm->ndm_family;
4065 if (ndm->ndm_ifindex != (int)ctx->ifindex ||
4066 !(ndm->ndm_state & NUD_PERMANENT) ||
4067 (family != AF_INET && family != AF_INET6))
4069 mnl_attr_for_each(na, nlh, sizeof(*ndm)) {
4070 switch (mnl_attr_get_type(na)) {
4078 if (na_mac && na_ip)
4081 if (!na_mac || !na_ip)
4083 /* Neigh rule with permenent attribute found. */
4084 size = MNL_ALIGN(sizeof(struct nlmsghdr)) +
4085 MNL_ALIGN(sizeof(struct ndmsg)) +
4086 SZ_NLATTR_DATA_OF(ETHER_ADDR_LEN) +
4087 (family == AF_INET6 ? SZ_NLATTR_DATA_OF(IPV6_ADDR_LEN)
4088 : SZ_NLATTR_TYPE_OF(uint32_t));
4089 cmd = flow_tcf_alloc_nlcmd(ctx, size);
4094 cmd = mnl_nlmsg_put_header(cmd);
4095 cmd->nlmsg_type = RTM_DELNEIGH;
4096 cmd->nlmsg_flags = NLM_F_REQUEST;
4097 ndm = mnl_nlmsg_put_extra_header(cmd, sizeof(*ndm));
4098 ndm->ndm_ifindex = ctx->ifindex;
4099 ndm->ndm_state = NUD_PERMANENT;
4102 if (family == AF_INET) {
4103 ndm->ndm_family = AF_INET;
4104 mnl_attr_put_u32(cmd, NDA_DST, mnl_attr_get_u32(na_ip));
4106 ndm->ndm_family = AF_INET6;
4107 mnl_attr_put(cmd, NDA_DST, IPV6_ADDR_LEN,
4108 mnl_attr_get_payload(na_ip));
4110 mnl_attr_put(cmd, NDA_LLADDR, ETHER_ADDR_LEN,
4111 mnl_attr_get_payload(na_mac));
4112 assert(size == cmd->nlmsg_len);
4117 * Cleanup the neigh rules on outer interface.
4120 * Context object initialized by mlx5_flow_tcf_context_create().
4121 * @param[in] ifindex
4122 * Network inferface index to perform cleanup.
4125 flow_tcf_encap_neigh_cleanup(struct mlx5_flow_tcf_context *tcf,
4126 unsigned int ifindex)
4128 struct nlmsghdr *nlh;
4130 struct tcf_nlcb_context ctx = {
4132 .bufsize = MNL_REQUEST_SIZE,
4133 .nlbuf = LIST_HEAD_INITIALIZER(),
4138 /* Seek and destroy leftovers of neigh rules. */
4139 nlh = mnl_nlmsg_put_header(tcf->buf);
4140 nlh->nlmsg_type = RTM_GETNEIGH;
4141 nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
4142 ndm = mnl_nlmsg_put_extra_header(nlh, sizeof(*ndm));
4143 ndm->ndm_family = AF_UNSPEC;
4144 ndm->ndm_ifindex = ifindex;
4145 ndm->ndm_state = NUD_PERMANENT;
4146 ret = flow_tcf_nl_ack(tcf, nlh, flow_tcf_collect_neigh_cb, &ctx);
4148 DRV_LOG(WARNING, "netlink: query device list error %d", ret);
4149 ret = flow_tcf_send_nlcmd(tcf, &ctx);
4151 DRV_LOG(WARNING, "netlink: device delete error %d", ret);
4155 * Collect indices of VXLAN encap/decap interfaces associated with device.
4156 * This is callback routine called by libmnl mnl_cb_run() in loop for
4157 * every message in received packet.
4160 * Pointer to reply header.
4161 * @param[in, out] arg
4162 * Opaque data pointer for this callback.
4165 * A positive, nonzero value on success, negative errno value otherwise
4166 * and rte_errno is set.
4169 flow_tcf_collect_vxlan_cb(const struct nlmsghdr *nlh, void *arg)
4171 struct tcf_nlcb_context *ctx = arg;
4172 struct nlmsghdr *cmd;
4173 struct ifinfomsg *ifm;
4175 struct nlattr *na_info = NULL;
4176 struct nlattr *na_vxlan = NULL;
4178 unsigned int vxindex;
4181 if (nlh->nlmsg_type != RTM_NEWLINK) {
4185 ifm = mnl_nlmsg_get_payload(nlh);
4186 if (!ifm->ifi_index) {
4190 mnl_attr_for_each(na, nlh, sizeof(*ifm))
4191 if (mnl_attr_get_type(na) == IFLA_LINKINFO) {
4197 mnl_attr_for_each_nested(na, na_info) {
4198 switch (mnl_attr_get_type(na)) {
4199 case IFLA_INFO_KIND:
4200 if (!strncmp("vxlan", mnl_attr_get_str(na),
4201 mnl_attr_get_len(na)))
4204 case IFLA_INFO_DATA:
4208 if (found && na_vxlan)
4211 if (!found || !na_vxlan)
4214 mnl_attr_for_each_nested(na, na_vxlan) {
4215 if (mnl_attr_get_type(na) == IFLA_VXLAN_LINK &&
4216 mnl_attr_get_u32(na) == ctx->ifindex) {
4223 /* Attached VXLAN device found, store the command to delete. */
4224 vxindex = ifm->ifi_index;
4225 size = MNL_ALIGN(sizeof(struct nlmsghdr)) +
4226 MNL_ALIGN(sizeof(struct ifinfomsg));
4227 cmd = flow_tcf_alloc_nlcmd(ctx, size);
4232 cmd = mnl_nlmsg_put_header(cmd);
4233 cmd->nlmsg_type = RTM_DELLINK;
4234 cmd->nlmsg_flags = NLM_F_REQUEST;
4235 ifm = mnl_nlmsg_put_extra_header(cmd, sizeof(*ifm));
4236 ifm->ifi_family = AF_UNSPEC;
4237 ifm->ifi_index = vxindex;
4238 assert(size == cmd->nlmsg_len);
4243 * Cleanup the outer interface. Removes all found vxlan devices
4244 * attached to specified index, flushes the meigh and local IP
4248 * Context object initialized by mlx5_flow_tcf_context_create().
4249 * @param[in] ifindex
4250 * Network inferface index to perform cleanup.
4253 flow_tcf_encap_iface_cleanup(struct mlx5_flow_tcf_context *tcf,
4254 unsigned int ifindex)
4256 struct nlmsghdr *nlh;
4257 struct ifinfomsg *ifm;
4258 struct tcf_nlcb_context ctx = {
4260 .bufsize = MNL_REQUEST_SIZE,
4261 .nlbuf = LIST_HEAD_INITIALIZER(),
4267 * Seek and destroy leftover VXLAN encap/decap interfaces with
4268 * matching properties.
4270 nlh = mnl_nlmsg_put_header(tcf->buf);
4271 nlh->nlmsg_type = RTM_GETLINK;
4272 nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
4273 ifm = mnl_nlmsg_put_extra_header(nlh, sizeof(*ifm));
4274 ifm->ifi_family = AF_UNSPEC;
4275 ret = flow_tcf_nl_ack(tcf, nlh, flow_tcf_collect_vxlan_cb, &ctx);
4277 DRV_LOG(WARNING, "netlink: query device list error %d", ret);
4278 ret = flow_tcf_send_nlcmd(tcf, &ctx);
4280 DRV_LOG(WARNING, "netlink: device delete error %d", ret);
4284 * Emit Netlink message to add/remove local address to the outer device.
4285 * The address being added is visible within the link only (scope link).
4287 * Note that an implicit route is maintained by the kernel due to the
4288 * presence of a peer address (IFA_ADDRESS).
4290 * These rules are used for encapsultion only and allow to assign
4291 * the outer tunnel source IP address.
4294 * Libmnl socket context object.
4296 * Encapsulation properties (source address and its peer).
4297 * @param[in] ifindex
4298 * Network interface to apply rule.
4300 * Toggle between add and remove.
4302 * Perform verbose error reporting if not NULL.
4305 * 0 on success, a negative errno value otherwise and rte_errno is set.
4308 flow_tcf_rule_local(struct mlx5_flow_tcf_context *tcf,
4309 const struct flow_tcf_vxlan_encap *encap,
4310 unsigned int ifindex,
4312 struct rte_flow_error *error)
4314 struct nlmsghdr *nlh;
4315 struct ifaddrmsg *ifa;
4316 alignas(struct nlmsghdr)
4317 uint8_t buf[mnl_nlmsg_size(sizeof(*ifa) + 128)];
4319 nlh = mnl_nlmsg_put_header(buf);
4320 nlh->nlmsg_type = enable ? RTM_NEWADDR : RTM_DELADDR;
4322 NLM_F_REQUEST | (enable ? NLM_F_CREATE | NLM_F_REPLACE : 0);
4324 ifa = mnl_nlmsg_put_extra_header(nlh, sizeof(*ifa));
4325 ifa->ifa_flags = IFA_F_PERMANENT;
4326 ifa->ifa_scope = RT_SCOPE_LINK;
4327 ifa->ifa_index = ifindex;
4328 if (encap->mask & FLOW_TCF_ENCAP_IPV4_SRC) {
4329 ifa->ifa_family = AF_INET;
4330 ifa->ifa_prefixlen = 32;
4331 mnl_attr_put_u32(nlh, IFA_LOCAL, encap->ipv4.src);
4332 if (encap->mask & FLOW_TCF_ENCAP_IPV4_DST)
4333 mnl_attr_put_u32(nlh, IFA_ADDRESS,
4336 assert(encap->mask & FLOW_TCF_ENCAP_IPV6_SRC);
4337 ifa->ifa_family = AF_INET6;
4338 ifa->ifa_prefixlen = 128;
4339 mnl_attr_put(nlh, IFA_LOCAL,
4340 sizeof(encap->ipv6.src),
4342 if (encap->mask & FLOW_TCF_ENCAP_IPV6_DST)
4343 mnl_attr_put(nlh, IFA_ADDRESS,
4344 sizeof(encap->ipv6.dst),
4347 if (!flow_tcf_nl_ack(tcf, nlh, NULL, NULL))
4349 return rte_flow_error_set(error, rte_errno,
4350 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
4351 "netlink: cannot complete IFA request"
4356 * Emit Netlink message to add/remove neighbor.
4359 * Libmnl socket context object.
4361 * Encapsulation properties (destination address).
4362 * @param[in] ifindex
4363 * Network interface.
4365 * Toggle between add and remove.
4367 * Perform verbose error reporting if not NULL.
4370 * 0 on success, a negative errno value otherwise and rte_errno is set.
4373 flow_tcf_rule_neigh(struct mlx5_flow_tcf_context *tcf,
4374 const struct flow_tcf_vxlan_encap *encap,
4375 unsigned int ifindex,
4377 struct rte_flow_error *error)
4379 struct nlmsghdr *nlh;
4381 alignas(struct nlmsghdr)
4382 uint8_t buf[mnl_nlmsg_size(sizeof(*ndm) + 128)];
4384 nlh = mnl_nlmsg_put_header(buf);
4385 nlh->nlmsg_type = enable ? RTM_NEWNEIGH : RTM_DELNEIGH;
4387 NLM_F_REQUEST | (enable ? NLM_F_CREATE | NLM_F_REPLACE : 0);
4389 ndm = mnl_nlmsg_put_extra_header(nlh, sizeof(*ndm));
4390 ndm->ndm_ifindex = ifindex;
4391 ndm->ndm_state = NUD_PERMANENT;
4394 if (encap->mask & FLOW_TCF_ENCAP_IPV4_DST) {
4395 ndm->ndm_family = AF_INET;
4396 mnl_attr_put_u32(nlh, NDA_DST, encap->ipv4.dst);
4398 assert(encap->mask & FLOW_TCF_ENCAP_IPV6_DST);
4399 ndm->ndm_family = AF_INET6;
4400 mnl_attr_put(nlh, NDA_DST, sizeof(encap->ipv6.dst),
4403 if (encap->mask & FLOW_TCF_ENCAP_ETH_SRC && enable)
4405 "outer ethernet source address cannot be "
4406 "forced for VXLAN encapsulation");
4407 if (encap->mask & FLOW_TCF_ENCAP_ETH_DST)
4408 mnl_attr_put(nlh, NDA_LLADDR, sizeof(encap->eth.dst),
4410 if (!flow_tcf_nl_ack(tcf, nlh, NULL, NULL))
4412 return rte_flow_error_set(error, rte_errno,
4413 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
4414 "netlink: cannot complete ND request"
4419 * Manage the local IP addresses and their peers IP addresses on the
4420 * outer interface for encapsulation purposes. The kernel searches the
4421 * appropriate device for tunnel egress traffic using the outer source
4422 * IP, this IP should be assigned to the outer network device, otherwise
4423 * kernel rejects the rule.
4425 * Adds or removes the addresses using the Netlink command like this:
4426 * ip addr add <src_ip> peer <dst_ip> scope link dev <ifouter>
4428 * The addresses are local to the netdev ("scope link"), this reduces
4429 * the risk of conflicts. Note that an implicit route is maintained by
4430 * the kernel due to the presence of a peer address (IFA_ADDRESS).
4433 * Libmnl socket context object.
4435 * VTEP object, contains rule database and ifouter index.
4436 * @param[in] dev_flow
4437 * Flow object, contains the tunnel parameters (for encap only).
4439 * Toggle between add and remove.
4441 * Perform verbose error reporting if not NULL.
4444 * 0 on success, a negative errno value otherwise and rte_errno is set.
4447 flow_tcf_encap_local(struct mlx5_flow_tcf_context *tcf,
4448 struct tcf_vtep *vtep,
4449 struct mlx5_flow *dev_flow,
4451 struct rte_flow_error *error)
4453 const struct flow_tcf_vxlan_encap *encap = dev_flow->tcf.vxlan_encap;
4454 struct tcf_local_rule *rule;
4459 assert(encap->hdr.type == FLOW_TCF_TUNACT_VXLAN_ENCAP);
4460 if (encap->mask & FLOW_TCF_ENCAP_IPV4_SRC) {
4461 assert(encap->mask & FLOW_TCF_ENCAP_IPV4_DST);
4462 LIST_FOREACH(rule, &vtep->local, next) {
4463 if (rule->mask & FLOW_TCF_ENCAP_IPV4_SRC &&
4464 encap->ipv4.src == rule->ipv4.src &&
4465 encap->ipv4.dst == rule->ipv4.dst) {
4471 assert(encap->mask & FLOW_TCF_ENCAP_IPV6_SRC);
4472 assert(encap->mask & FLOW_TCF_ENCAP_IPV6_DST);
4473 LIST_FOREACH(rule, &vtep->local, next) {
4474 if (rule->mask & FLOW_TCF_ENCAP_IPV6_SRC &&
4475 !memcmp(&encap->ipv6.src, &rule->ipv6.src,
4476 sizeof(encap->ipv6.src)) &&
4477 !memcmp(&encap->ipv6.dst, &rule->ipv6.dst,
4478 sizeof(encap->ipv6.dst))) {
4489 if (!rule->refcnt || !--rule->refcnt) {
4490 LIST_REMOVE(rule, next);
4491 return flow_tcf_rule_local(tcf, encap,
4492 vtep->ifouter, false, error);
4497 DRV_LOG(WARNING, "disabling not existing local rule");
4498 rte_flow_error_set(error, ENOENT,
4499 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
4500 "disabling not existing local rule");
4503 rule = rte_zmalloc(__func__, sizeof(struct tcf_local_rule),
4504 alignof(struct tcf_local_rule));
4506 rte_flow_error_set(error, ENOMEM,
4507 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
4508 "unable to allocate memory for local rule");
4511 *rule = (struct tcf_local_rule){.refcnt = 0,
4514 if (encap->mask & FLOW_TCF_ENCAP_IPV4_SRC) {
4515 rule->mask = FLOW_TCF_ENCAP_IPV4_SRC
4516 | FLOW_TCF_ENCAP_IPV4_DST;
4517 rule->ipv4.src = encap->ipv4.src;
4518 rule->ipv4.dst = encap->ipv4.dst;
4520 rule->mask = FLOW_TCF_ENCAP_IPV6_SRC
4521 | FLOW_TCF_ENCAP_IPV6_DST;
4522 memcpy(&rule->ipv6.src, &encap->ipv6.src, IPV6_ADDR_LEN);
4523 memcpy(&rule->ipv6.dst, &encap->ipv6.dst, IPV6_ADDR_LEN);
4525 ret = flow_tcf_rule_local(tcf, encap, vtep->ifouter, true, error);
4531 LIST_INSERT_HEAD(&vtep->local, rule, next);
4536 * Manage the destination MAC/IP addresses neigh database, kernel uses
4537 * this one to determine the destination MAC address within encapsulation
4538 * header. Adds or removes the entries using the Netlink command like this:
4539 * ip neigh add dev <ifouter> lladdr <dst_mac> to <dst_ip> nud permanent
4542 * Libmnl socket context object.
4544 * VTEP object, contains rule database and ifouter index.
4545 * @param[in] dev_flow
4546 * Flow object, contains the tunnel parameters (for encap only).
4548 * Toggle between add and remove.
4550 * Perform verbose error reporting if not NULL.
4553 * 0 on success, a negative errno value otherwise and rte_errno is set.
4556 flow_tcf_encap_neigh(struct mlx5_flow_tcf_context *tcf,
4557 struct tcf_vtep *vtep,
4558 struct mlx5_flow *dev_flow,
4560 struct rte_flow_error *error)
4562 const struct flow_tcf_vxlan_encap *encap = dev_flow->tcf.vxlan_encap;
4563 struct tcf_neigh_rule *rule;
4568 assert(encap->hdr.type == FLOW_TCF_TUNACT_VXLAN_ENCAP);
4569 if (encap->mask & FLOW_TCF_ENCAP_IPV4_DST) {
4570 assert(encap->mask & FLOW_TCF_ENCAP_IPV4_SRC);
4571 LIST_FOREACH(rule, &vtep->neigh, next) {
4572 if (rule->mask & FLOW_TCF_ENCAP_IPV4_DST &&
4573 encap->ipv4.dst == rule->ipv4.dst) {
4579 assert(encap->mask & FLOW_TCF_ENCAP_IPV6_SRC);
4580 assert(encap->mask & FLOW_TCF_ENCAP_IPV6_DST);
4581 LIST_FOREACH(rule, &vtep->neigh, next) {
4582 if (rule->mask & FLOW_TCF_ENCAP_IPV6_DST &&
4583 !memcmp(&encap->ipv6.dst, &rule->ipv6.dst,
4584 sizeof(encap->ipv6.dst))) {
4591 if (memcmp(&encap->eth.dst, &rule->eth,
4592 sizeof(encap->eth.dst))) {
4593 DRV_LOG(WARNING, "Destination MAC differs"
4595 rte_flow_error_set(error, EEXIST,
4596 RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
4597 NULL, "Different MAC address"
4598 " neigh rule for the same"
4606 if (!rule->refcnt || !--rule->refcnt) {
4607 LIST_REMOVE(rule, next);
4608 return flow_tcf_rule_neigh(tcf, encap,
4615 DRV_LOG(WARNING, "Disabling not existing neigh rule");
4616 rte_flow_error_set(error, ENOENT,
4617 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
4618 "unable to allocate memory for neigh rule");
4621 rule = rte_zmalloc(__func__, sizeof(struct tcf_neigh_rule),
4622 alignof(struct tcf_neigh_rule));
4624 rte_flow_error_set(error, ENOMEM,
4625 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
4626 "unable to allocate memory for neigh rule");
4629 *rule = (struct tcf_neigh_rule){.refcnt = 0,
4632 if (encap->mask & FLOW_TCF_ENCAP_IPV4_DST) {
4633 rule->mask = FLOW_TCF_ENCAP_IPV4_DST;
4634 rule->ipv4.dst = encap->ipv4.dst;
4636 rule->mask = FLOW_TCF_ENCAP_IPV6_DST;
4637 memcpy(&rule->ipv6.dst, &encap->ipv6.dst, IPV6_ADDR_LEN);
4639 memcpy(&rule->eth, &encap->eth.dst, sizeof(rule->eth));
4640 ret = flow_tcf_rule_neigh(tcf, encap, vtep->ifouter, true, error);
4646 LIST_INSERT_HEAD(&vtep->neigh, rule, next);
4650 /* VTEP device list is shared between PMD port instances. */
4651 static LIST_HEAD(, tcf_vtep) vtep_list_vxlan = LIST_HEAD_INITIALIZER();
4652 static pthread_mutex_t vtep_list_mutex = PTHREAD_MUTEX_INITIALIZER;
4655 * Deletes VTEP network device.
4658 * Context object initialized by mlx5_flow_tcf_context_create().
4660 * Object represinting the network device to delete. Memory
4661 * allocated for this object is freed by routine.
4664 flow_tcf_vtep_delete(struct mlx5_flow_tcf_context *tcf,
4665 struct tcf_vtep *vtep)
4667 struct nlmsghdr *nlh;
4668 struct ifinfomsg *ifm;
4669 alignas(struct nlmsghdr)
4670 uint8_t buf[mnl_nlmsg_size(MNL_ALIGN(sizeof(*ifm))) +
4671 MNL_BUF_EXTRA_SPACE];
4674 assert(!vtep->refcnt);
4675 /* Delete only ifaces those we actually created. */
4676 if (vtep->created && vtep->ifindex) {
4677 DRV_LOG(INFO, "VTEP delete (%d)", vtep->ifindex);
4678 nlh = mnl_nlmsg_put_header(buf);
4679 nlh->nlmsg_type = RTM_DELLINK;
4680 nlh->nlmsg_flags = NLM_F_REQUEST;
4681 ifm = mnl_nlmsg_put_extra_header(nlh, sizeof(*ifm));
4682 ifm->ifi_family = AF_UNSPEC;
4683 ifm->ifi_index = vtep->ifindex;
4684 assert(sizeof(buf) >= nlh->nlmsg_len);
4685 ret = flow_tcf_nl_ack(tcf, nlh, NULL, NULL);
4687 DRV_LOG(WARNING, "netlink: error deleting vxlan"
4688 " encap/decap ifindex %u",
4695 * Creates VTEP network device.
4698 * Context object initialized by mlx5_flow_tcf_context_create().
4699 * @param[in] ifouter
4700 * Outer interface to attach new-created VXLAN device
4701 * If zero the VXLAN device will not be attached to any device.
4702 * These VTEPs are used for decapsulation and can be precreated
4703 * and shared between processes.
4705 * UDP port of created VTEP device.
4707 * Perform verbose error reporting if not NULL.
4710 * Pointer to created device structure on success,
4711 * NULL otherwise and rte_errno is set.
4713 #ifdef HAVE_IFLA_VXLAN_COLLECT_METADATA
4714 static struct tcf_vtep*
4715 flow_tcf_vtep_create(struct mlx5_flow_tcf_context *tcf,
4716 unsigned int ifouter,
4717 uint16_t port, struct rte_flow_error *error)
4719 struct tcf_vtep *vtep;
4720 struct nlmsghdr *nlh;
4721 struct ifinfomsg *ifm;
4722 char name[sizeof(MLX5_VXLAN_DEVICE_PFX) + 24];
4723 alignas(struct nlmsghdr)
4724 uint8_t buf[mnl_nlmsg_size(sizeof(*ifm)) +
4725 SZ_NLATTR_DATA_OF(sizeof(name)) +
4726 SZ_NLATTR_NEST * 2 +
4727 SZ_NLATTR_STRZ_OF("vxlan") +
4728 SZ_NLATTR_DATA_OF(sizeof(uint32_t)) +
4729 SZ_NLATTR_DATA_OF(sizeof(uint16_t)) +
4730 SZ_NLATTR_DATA_OF(sizeof(uint8_t)) * 3 +
4731 MNL_BUF_EXTRA_SPACE];
4732 struct nlattr *na_info;
4733 struct nlattr *na_vxlan;
4734 rte_be16_t vxlan_port = rte_cpu_to_be_16(port);
4737 vtep = rte_zmalloc(__func__, sizeof(*vtep), alignof(struct tcf_vtep));
4739 rte_flow_error_set(error, ENOMEM,
4740 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
4741 "unable to allocate memory for VTEP");
4744 *vtep = (struct tcf_vtep){
4746 .local = LIST_HEAD_INITIALIZER(),
4747 .neigh = LIST_HEAD_INITIALIZER(),
4749 memset(buf, 0, sizeof(buf));
4750 nlh = mnl_nlmsg_put_header(buf);
4751 nlh->nlmsg_type = RTM_NEWLINK;
4752 nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL;
4753 ifm = mnl_nlmsg_put_extra_header(nlh, sizeof(*ifm));
4754 ifm->ifi_family = AF_UNSPEC;
4757 ifm->ifi_flags = IFF_UP;
4758 ifm->ifi_change = 0xffffffff;
4759 snprintf(name, sizeof(name), "%s%u", MLX5_VXLAN_DEVICE_PFX, port);
4760 mnl_attr_put_strz(nlh, IFLA_IFNAME, name);
4761 na_info = mnl_attr_nest_start(nlh, IFLA_LINKINFO);
4763 mnl_attr_put_strz(nlh, IFLA_INFO_KIND, "vxlan");
4764 na_vxlan = mnl_attr_nest_start(nlh, IFLA_INFO_DATA);
4766 mnl_attr_put_u32(nlh, IFLA_VXLAN_LINK, ifouter);
4768 mnl_attr_put_u8(nlh, IFLA_VXLAN_COLLECT_METADATA, 1);
4769 mnl_attr_put_u8(nlh, IFLA_VXLAN_UDP_ZERO_CSUM6_RX, 1);
4770 mnl_attr_put_u8(nlh, IFLA_VXLAN_LEARNING, 0);
4771 mnl_attr_put_u16(nlh, IFLA_VXLAN_PORT, vxlan_port);
4772 mnl_attr_nest_end(nlh, na_vxlan);
4773 mnl_attr_nest_end(nlh, na_info);
4774 assert(sizeof(buf) >= nlh->nlmsg_len);
4775 ret = flow_tcf_nl_ack(tcf, nlh, NULL, NULL);
4778 "netlink: VTEP %s create failure (%d)",
4780 if (rte_errno != EEXIST || ifouter)
4782 * Some unhandled error occurred or device is
4783 * for encapsulation and cannot be shared.
4788 * Mark device we actually created.
4789 * We should explicitly delete
4790 * when we do not need it anymore.
4794 /* Try to get ifindex of created of pre-existing device. */
4795 ret = if_nametoindex(name);
4798 "VTEP %s failed to get index (%d)", name, errno);
4801 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
4802 "netlink: failed to retrieve VTEP ifindex");
4805 vtep->ifindex = ret;
4806 vtep->ifouter = ifouter;
4807 memset(buf, 0, sizeof(buf));
4808 nlh = mnl_nlmsg_put_header(buf);
4809 nlh->nlmsg_type = RTM_NEWLINK;
4810 nlh->nlmsg_flags = NLM_F_REQUEST;
4811 ifm = mnl_nlmsg_put_extra_header(nlh, sizeof(*ifm));
4812 ifm->ifi_family = AF_UNSPEC;
4814 ifm->ifi_index = vtep->ifindex;
4815 ifm->ifi_flags = IFF_UP;
4816 ifm->ifi_change = IFF_UP;
4817 ret = flow_tcf_nl_ack(tcf, nlh, NULL, NULL);
4819 rte_flow_error_set(error, -errno,
4820 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
4821 "netlink: failed to set VTEP link up");
4822 DRV_LOG(WARNING, "netlink: VTEP %s set link up failure (%d)",
4826 ret = mlx5_flow_tcf_init(tcf, vtep->ifindex, error);
4828 DRV_LOG(WARNING, "VTEP %s init failure (%d)", name, rte_errno);
4831 DRV_LOG(INFO, "VTEP create (%d, %d)", vtep->port, vtep->ifindex);
4835 flow_tcf_vtep_delete(tcf, vtep);
4842 static struct tcf_vtep*
4843 flow_tcf_vtep_create(struct mlx5_flow_tcf_context *tcf __rte_unused,
4844 unsigned int ifouter __rte_unused,
4845 uint16_t port __rte_unused,
4846 struct rte_flow_error *error)
4848 rte_flow_error_set(error, ENOTSUP,
4849 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
4850 "netlink: failed to create VTEP, "
4851 "vxlan metadata are not supported by kernel");
4854 #endif /* HAVE_IFLA_VXLAN_COLLECT_METADATA */
4857 * Acquire target interface index for VXLAN tunneling decapsulation.
4858 * In order to share the UDP port within the other interfaces the
4859 * VXLAN device created as not attached to any interface (if created).
4862 * Context object initialized by mlx5_flow_tcf_context_create().
4863 * @param[in] dev_flow
4864 * Flow tcf object with tunnel structure pointer set.
4866 * Perform verbose error reporting if not NULL.
4868 * Interface descriptor pointer on success,
4869 * NULL otherwise and rte_errno is set.
4871 static struct tcf_vtep*
4872 flow_tcf_decap_vtep_acquire(struct mlx5_flow_tcf_context *tcf,
4873 struct mlx5_flow *dev_flow,
4874 struct rte_flow_error *error)
4876 struct tcf_vtep *vtep;
4877 uint16_t port = dev_flow->tcf.vxlan_decap->udp_port;
4879 LIST_FOREACH(vtep, &vtep_list_vxlan, next) {
4880 if (vtep->port == port)
4883 if (vtep && vtep->ifouter) {
4884 rte_flow_error_set(error, -errno,
4885 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
4886 "Failed to create decap VTEP with specified"
4887 " UDP port, atatched device exists");
4891 /* Device exists, just increment the reference counter. */
4893 assert(vtep->ifindex);
4896 /* No decapsulation device exists, try to create the new one. */
4897 vtep = flow_tcf_vtep_create(tcf, 0, port, error);
4899 LIST_INSERT_HEAD(&vtep_list_vxlan, vtep, next);
4904 * Aqcuire target interface index for VXLAN tunneling encapsulation.
4907 * Context object initialized by mlx5_flow_tcf_context_create().
4908 * @param[in] ifouter
4909 * Network interface index to attach VXLAN encap device to.
4910 * @param[in] dev_flow
4911 * Flow tcf object with tunnel structure pointer set.
4913 * Perform verbose error reporting if not NULL.
4915 * Interface descriptor pointer on success,
4916 * NULL otherwise and rte_errno is set.
4918 static struct tcf_vtep*
4919 flow_tcf_encap_vtep_acquire(struct mlx5_flow_tcf_context *tcf,
4920 unsigned int ifouter,
4921 struct mlx5_flow *dev_flow __rte_unused,
4922 struct rte_flow_error *error)
4924 static uint16_t encap_port = MLX5_VXLAN_PORT_MIN - 1;
4925 struct tcf_vtep *vtep;
4929 /* Look whether the attached VTEP for encap is created. */
4930 LIST_FOREACH(vtep, &vtep_list_vxlan, next) {
4931 if (vtep->ifouter == ifouter)
4935 /* VTEP already exists, just increment the reference. */
4940 /* Not found, we should create the new attached VTEP. */
4941 flow_tcf_encap_iface_cleanup(tcf, ifouter);
4942 flow_tcf_encap_local_cleanup(tcf, ifouter);
4943 flow_tcf_encap_neigh_cleanup(tcf, ifouter);
4944 for (pcnt = 0; pcnt <= (MLX5_VXLAN_PORT_MAX
4945 - MLX5_VXLAN_PORT_MIN); pcnt++) {
4947 /* Wraparound the UDP port index. */
4948 if (encap_port < MLX5_VXLAN_PORT_MIN ||
4949 encap_port > MLX5_VXLAN_PORT_MAX)
4950 encap_port = MLX5_VXLAN_PORT_MIN;
4951 /* Check whether UDP port is in already in use. */
4952 LIST_FOREACH(vtep, &vtep_list_vxlan, next) {
4953 if (vtep->port == encap_port)
4957 /* Port is in use, try the next one. */
4961 vtep = flow_tcf_vtep_create(tcf, ifouter,
4964 LIST_INSERT_HEAD(&vtep_list_vxlan, vtep, next);
4967 if (rte_errno != EEXIST)
4973 assert(vtep->ifouter == ifouter);
4974 assert(vtep->ifindex);
4975 /* Create local ipaddr with peer to specify the outer IPs. */
4976 ret = flow_tcf_encap_local(tcf, vtep, dev_flow, true, error);
4978 /* Create neigh rule to specify outer destination MAC. */
4979 ret = flow_tcf_encap_neigh(tcf, vtep, dev_flow, true, error);
4981 flow_tcf_encap_local(tcf, vtep,
4982 dev_flow, false, error);
4985 if (--vtep->refcnt == 0)
4986 flow_tcf_vtep_delete(tcf, vtep);
4993 * Acquires target interface index for tunneling of any type.
4994 * Creates the new VTEP if needed.
4997 * Context object initialized by mlx5_flow_tcf_context_create().
4998 * @param[in] ifouter
4999 * Network interface index to attach VXLAN encap device to.
5000 * @param[in] dev_flow
5001 * Flow tcf object with tunnel structure pointer set.
5003 * Perform verbose error reporting if not NULL.
5005 * Interface descriptor pointer on success,
5006 * NULL otherwise and rte_errno is set.
5008 static struct tcf_vtep*
5009 flow_tcf_vtep_acquire(struct mlx5_flow_tcf_context *tcf,
5010 unsigned int ifouter,
5011 struct mlx5_flow *dev_flow,
5012 struct rte_flow_error *error)
5014 struct tcf_vtep *vtep = NULL;
5016 assert(dev_flow->tcf.tunnel);
5017 pthread_mutex_lock(&vtep_list_mutex);
5018 switch (dev_flow->tcf.tunnel->type) {
5019 case FLOW_TCF_TUNACT_VXLAN_ENCAP:
5020 vtep = flow_tcf_encap_vtep_acquire(tcf, ifouter,
5023 case FLOW_TCF_TUNACT_VXLAN_DECAP:
5024 vtep = flow_tcf_decap_vtep_acquire(tcf, dev_flow, error);
5027 rte_flow_error_set(error, ENOTSUP,
5028 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
5029 "unsupported tunnel type");
5032 pthread_mutex_unlock(&vtep_list_mutex);
5037 * Release tunneling interface by ifindex. Decrements reference
5038 * counter and actually removes the device if counter is zero.
5041 * Context object initialized by mlx5_flow_tcf_context_create().
5043 * VTEP device descriptor structure.
5044 * @param[in] dev_flow
5045 * Flow tcf object with tunnel structure pointer set.
5048 flow_tcf_vtep_release(struct mlx5_flow_tcf_context *tcf,
5049 struct tcf_vtep *vtep,
5050 struct mlx5_flow *dev_flow)
5052 assert(dev_flow->tcf.tunnel);
5053 pthread_mutex_lock(&vtep_list_mutex);
5054 switch (dev_flow->tcf.tunnel->type) {
5055 case FLOW_TCF_TUNACT_VXLAN_DECAP:
5057 case FLOW_TCF_TUNACT_VXLAN_ENCAP:
5058 /* Remove the encap ancillary rules first. */
5059 flow_tcf_encap_neigh(tcf, vtep, dev_flow, false, NULL);
5060 flow_tcf_encap_local(tcf, vtep, dev_flow, false, NULL);
5064 DRV_LOG(WARNING, "Unsupported tunnel type");
5067 assert(vtep->refcnt);
5068 if (--vtep->refcnt == 0) {
5069 LIST_REMOVE(vtep, next);
5070 flow_tcf_vtep_delete(tcf, vtep);
5072 pthread_mutex_unlock(&vtep_list_mutex);
5075 struct tcf_nlcb_query {
5078 uint32_t flags_valid:1;
5082 * Collect queried rule attributes. This is callback routine called by
5083 * libmnl mnl_cb_run() in loop for every message in received packet.
5084 * Current implementation collects the flower flags only.
5087 * Pointer to reply header.
5088 * @param[in, out] arg
5089 * Context pointer for this callback.
5092 * A positive, nonzero value on success (required by libmnl
5093 * to continue messages processing).
5096 flow_tcf_collect_query_cb(const struct nlmsghdr *nlh, void *arg)
5098 struct tcf_nlcb_query *query = arg;
5099 struct tcmsg *tcm = mnl_nlmsg_get_payload(nlh);
5100 struct nlattr *na, *na_opt;
5101 bool flower = false;
5103 if (nlh->nlmsg_type != RTM_NEWTFILTER ||
5104 tcm->tcm_handle != query->handle)
5106 mnl_attr_for_each(na, nlh, sizeof(*tcm)) {
5107 switch (mnl_attr_get_type(na)) {
5109 if (strcmp(mnl_attr_get_payload(na), "flower")) {
5110 /* Not flower filter, drop entire message. */
5117 /* Not flower options, drop entire message. */
5120 /* Check nested flower options. */
5121 mnl_attr_for_each_nested(na_opt, na) {
5122 switch (mnl_attr_get_type(na_opt)) {
5123 case TCA_FLOWER_FLAGS:
5124 query->flags_valid = 1;
5126 mnl_attr_get_u32(na_opt);
5137 * Query a TC flower rule flags via netlink.
5140 * Context object initialized by mlx5_flow_tcf_context_create().
5141 * @param[in] dev_flow
5142 * Pointer to the flow.
5143 * @param[out] pflags
5144 * pointer to the data retrieved by the query.
5147 * 0 on success, a negative errno value otherwise.
5150 flow_tcf_query_flags(struct mlx5_flow_tcf_context *tcf,
5151 struct mlx5_flow *dev_flow,
5154 struct nlmsghdr *nlh;
5156 struct tcf_nlcb_query query = {
5157 .handle = dev_flow->tcf.tcm->tcm_handle,
5160 nlh = mnl_nlmsg_put_header(tcf->buf);
5161 nlh->nlmsg_type = RTM_GETTFILTER;
5162 nlh->nlmsg_flags = NLM_F_REQUEST;
5163 tcm = mnl_nlmsg_put_extra_header(nlh, sizeof(*tcm));
5164 memcpy(tcm, dev_flow->tcf.tcm, sizeof(*tcm));
5166 * Ignore Netlink error for filter query operations.
5167 * The reply length is sent by kernel as errno.
5168 * Just check we got the flags option.
5170 flow_tcf_nl_ack(tcf, nlh, flow_tcf_collect_query_cb, &query);
5171 if (!query.flags_valid) {
5175 *pflags = query.tc_flags;
5180 * Query and check the in_hw set for specified rule.
5183 * Context object initialized by mlx5_flow_tcf_context_create().
5184 * @param[in] dev_flow
5185 * Pointer to the flow to check.
5188 * 0 on success, a negative errno value otherwise.
5191 flow_tcf_check_inhw(struct mlx5_flow_tcf_context *tcf,
5192 struct mlx5_flow *dev_flow)
5197 ret = flow_tcf_query_flags(tcf, dev_flow, &flags);
5200 return (flags & TCA_CLS_FLAGS_IN_HW) ? 0 : -ENOENT;
5204 * Remove flow from E-Switch by sending Netlink message.
5207 * Pointer to Ethernet device.
5208 * @param[in, out] flow
5209 * Pointer to the sub flow.
5212 flow_tcf_remove(struct rte_eth_dev *dev, struct rte_flow *flow)
5214 struct priv *priv = dev->data->dev_private;
5215 struct mlx5_flow_tcf_context *ctx = priv->tcf_context;
5216 struct mlx5_flow *dev_flow;
5217 struct nlmsghdr *nlh;
5221 dev_flow = LIST_FIRST(&flow->dev_flows);
5224 /* E-Switch flow can't be expanded. */
5225 assert(!LIST_NEXT(dev_flow, next));
5226 if (dev_flow->tcf.applied) {
5227 nlh = dev_flow->tcf.nlh;
5228 nlh->nlmsg_type = RTM_DELTFILTER;
5229 nlh->nlmsg_flags = NLM_F_REQUEST;
5230 flow_tcf_nl_ack(ctx, nlh, NULL, NULL);
5231 if (dev_flow->tcf.tunnel) {
5232 assert(dev_flow->tcf.tunnel->vtep);
5233 flow_tcf_vtep_release(ctx,
5234 dev_flow->tcf.tunnel->vtep,
5236 dev_flow->tcf.tunnel->vtep = NULL;
5238 dev_flow->tcf.applied = 0;
5243 * Apply flow to E-Switch by sending Netlink message.
5246 * Pointer to Ethernet device.
5247 * @param[in, out] flow
5248 * Pointer to the sub flow.
5250 * Pointer to the error structure.
5253 * 0 on success, a negative errno value otherwise and rte_ernno is set.
5256 flow_tcf_apply(struct rte_eth_dev *dev, struct rte_flow *flow,
5257 struct rte_flow_error *error)
5259 struct priv *priv = dev->data->dev_private;
5260 struct mlx5_flow_tcf_context *ctx = priv->tcf_context;
5261 struct mlx5_flow *dev_flow;
5262 struct nlmsghdr *nlh;
5264 dev_flow = LIST_FIRST(&flow->dev_flows);
5265 /* E-Switch flow can't be expanded. */
5266 assert(!LIST_NEXT(dev_flow, next));
5267 if (dev_flow->tcf.applied)
5269 nlh = dev_flow->tcf.nlh;
5270 nlh->nlmsg_type = RTM_NEWTFILTER;
5271 nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL;
5272 if (dev_flow->tcf.tunnel) {
5274 * Replace the interface index, target for
5275 * encapsulation, source for decapsulation.
5277 assert(!dev_flow->tcf.tunnel->vtep);
5278 assert(dev_flow->tcf.tunnel->ifindex_ptr);
5279 /* Acquire actual VTEP device when rule is being applied. */
5280 dev_flow->tcf.tunnel->vtep =
5281 flow_tcf_vtep_acquire(ctx,
5282 dev_flow->tcf.tunnel->ifindex_org,
5284 if (!dev_flow->tcf.tunnel->vtep)
5286 DRV_LOG(INFO, "Replace ifindex: %d->%d",
5287 dev_flow->tcf.tunnel->vtep->ifindex,
5288 dev_flow->tcf.tunnel->ifindex_org);
5289 *dev_flow->tcf.tunnel->ifindex_ptr =
5290 dev_flow->tcf.tunnel->vtep->ifindex;
5292 if (!flow_tcf_nl_ack(ctx, nlh, NULL, NULL)) {
5293 dev_flow->tcf.applied = 1;
5294 if (*dev_flow->tcf.ptc_flags & TCA_CLS_FLAGS_SKIP_SW)
5297 * Rule was applied without skip_sw flag set.
5298 * We should check whether the rule was acctually
5299 * accepted by hardware (have look at in_hw flag).
5301 if (flow_tcf_check_inhw(ctx, dev_flow)) {
5302 flow_tcf_remove(dev, flow);
5303 return rte_flow_error_set
5305 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
5306 "netlink: rule has no in_hw flag set");
5310 if (dev_flow->tcf.tunnel) {
5311 /* Rollback the VTEP configuration if rule apply failed. */
5312 assert(dev_flow->tcf.tunnel->vtep);
5313 flow_tcf_vtep_release(ctx, dev_flow->tcf.tunnel->vtep,
5315 dev_flow->tcf.tunnel->vtep = NULL;
5317 return rte_flow_error_set(error, rte_errno,
5318 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
5319 "netlink: failed to create TC flow rule");
5323 * Remove flow from E-Switch and release resources of the device flow.
5326 * Pointer to Ethernet device.
5327 * @param[in, out] flow
5328 * Pointer to the sub flow.
5331 flow_tcf_destroy(struct rte_eth_dev *dev, struct rte_flow *flow)
5333 struct mlx5_flow *dev_flow;
5337 flow_tcf_remove(dev, flow);
5338 if (flow->counter) {
5339 if (--flow->counter->ref_cnt == 0) {
5340 rte_free(flow->counter);
5341 flow->counter = NULL;
5344 dev_flow = LIST_FIRST(&flow->dev_flows);
5347 /* E-Switch flow can't be expanded. */
5348 assert(!LIST_NEXT(dev_flow, next));
5349 LIST_REMOVE(dev_flow, next);
5354 * Helper routine for figuring the space size required for a parse buffer.
5357 * array of values to use.
5359 * Current location in array.
5361 * Value to compare with.
5364 * The maximum between the given value and the array value on index.
5367 flow_tcf_arr_val_max(uint16_t array[], int idx, uint16_t value)
5369 return idx < 0 ? (value) : RTE_MAX((array)[idx], value);
5373 * Parse rtnetlink message attributes filling the attribute table with the info
5377 * Attribute table to be filled.
5379 * Maxinum entry in the attribute table.
5381 * The attributes section in the message to be parsed.
5383 * The length of the attributes section in the message.
5386 flow_tcf_nl_parse_rtattr(struct rtattr *tb[], int max,
5387 struct rtattr *rta, int len)
5389 unsigned short type;
5390 memset(tb, 0, sizeof(struct rtattr *) * (max + 1));
5391 while (RTA_OK(rta, len)) {
5392 type = rta->rta_type;
5393 if (type <= max && !tb[type])
5395 rta = RTA_NEXT(rta, len);
5400 * Extract flow counters from flower action.
5403 * flower action stats properties in the Netlink message received.
5405 * The backward sequence of rta_types, as written in the attribute table,
5406 * we need to traverse in order to get to the requested object.
5408 * Current location in rta_type table.
5410 * data holding the count statistics of the rte_flow retrieved from
5414 * 0 if data was found and retrieved, -1 otherwise.
5417 flow_tcf_nl_action_stats_parse_and_get(struct rtattr *rta,
5418 uint16_t rta_type[], int idx,
5419 struct gnet_stats_basic *data)
5421 int tca_stats_max = flow_tcf_arr_val_max(rta_type, idx,
5423 struct rtattr *tbs[tca_stats_max + 1];
5425 if (rta == NULL || idx < 0)
5427 flow_tcf_nl_parse_rtattr(tbs, tca_stats_max,
5428 RTA_DATA(rta), RTA_PAYLOAD(rta));
5429 switch (rta_type[idx]) {
5430 case TCA_STATS_BASIC:
5431 if (tbs[TCA_STATS_BASIC]) {
5432 memcpy(data, RTA_DATA(tbs[TCA_STATS_BASIC]),
5433 RTE_MIN(RTA_PAYLOAD(tbs[TCA_STATS_BASIC]),
5445 * Parse flower single action retrieving the requested action attribute,
5449 * flower action properties in the Netlink message received.
5451 * The backward sequence of rta_types, as written in the attribute table,
5452 * we need to traverse in order to get to the requested object.
5454 * Current location in rta_type table.
5456 * Count statistics retrieved from the message query.
5459 * 0 if data was found and retrieved, -1 otherwise.
5462 flow_tcf_nl_parse_one_action_and_get(struct rtattr *arg,
5463 uint16_t rta_type[], int idx, void *data)
5465 int tca_act_max = flow_tcf_arr_val_max(rta_type, idx, TCA_ACT_STATS);
5466 struct rtattr *tb[tca_act_max + 1];
5468 if (arg == NULL || idx < 0)
5470 flow_tcf_nl_parse_rtattr(tb, tca_act_max,
5471 RTA_DATA(arg), RTA_PAYLOAD(arg));
5472 if (tb[TCA_ACT_KIND] == NULL)
5474 switch (rta_type[idx]) {
5476 if (tb[TCA_ACT_STATS])
5477 return flow_tcf_nl_action_stats_parse_and_get
5480 (struct gnet_stats_basic *)data);
5489 * Parse flower action section in the message retrieving the requested
5490 * attribute from the first action that provides it.
5493 * flower section in the Netlink message received.
5495 * The backward sequence of rta_types, as written in the attribute table,
5496 * we need to traverse in order to get to the requested object.
5498 * Current location in rta_type table.
5500 * data retrieved from the message query.
5503 * 0 if data was found and retrieved, -1 otherwise.
5506 flow_tcf_nl_action_parse_and_get(struct rtattr *arg,
5507 uint16_t rta_type[], int idx, void *data)
5509 struct rtattr *tb[TCA_ACT_MAX_PRIO + 1];
5512 if (arg == NULL || idx < 0)
5514 flow_tcf_nl_parse_rtattr(tb, TCA_ACT_MAX_PRIO,
5515 RTA_DATA(arg), RTA_PAYLOAD(arg));
5516 switch (rta_type[idx]) {
5518 * flow counters are stored in the actions defined by the flow
5519 * and not in the flow itself, therefore we need to traverse the
5520 * flower chain of actions in search for them.
5522 * Note that the index is not decremented here.
5525 for (i = 0; i <= TCA_ACT_MAX_PRIO; i++) {
5527 !flow_tcf_nl_parse_one_action_and_get(tb[i],
5540 * Parse flower classifier options in the message, retrieving the requested
5541 * attribute if found.
5544 * flower section in the Netlink message received.
5546 * The backward sequence of rta_types, as written in the attribute table,
5547 * we need to traverse in order to get to the requested object.
5549 * Current location in rta_type table.
5551 * data retrieved from the message query.
5554 * 0 if data was found and retrieved, -1 otherwise.
5557 flow_tcf_nl_opts_parse_and_get(struct rtattr *opt,
5558 uint16_t rta_type[], int idx, void *data)
5560 int tca_flower_max = flow_tcf_arr_val_max(rta_type, idx,
5562 struct rtattr *tb[tca_flower_max + 1];
5564 if (!opt || idx < 0)
5566 flow_tcf_nl_parse_rtattr(tb, tca_flower_max,
5567 RTA_DATA(opt), RTA_PAYLOAD(opt));
5568 switch (rta_type[idx]) {
5569 case TCA_FLOWER_ACT:
5570 if (tb[TCA_FLOWER_ACT])
5571 return flow_tcf_nl_action_parse_and_get
5572 (tb[TCA_FLOWER_ACT],
5573 rta_type, --idx, data);
5582 * Parse Netlink reply on filter query, retrieving the flow counters.
5585 * Message received from Netlink.
5587 * The backward sequence of rta_types, as written in the attribute table,
5588 * we need to traverse in order to get to the requested object.
5590 * Current location in rta_type table.
5592 * data retrieved from the message query.
5595 * 0 if data was found and retrieved, -1 otherwise.
5598 flow_tcf_nl_filter_parse_and_get(struct nlmsghdr *cnlh,
5599 uint16_t rta_type[], int idx, void *data)
5601 struct nlmsghdr *nlh = cnlh;
5602 struct tcmsg *t = NLMSG_DATA(nlh);
5603 int len = nlh->nlmsg_len;
5604 int tca_max = flow_tcf_arr_val_max(rta_type, idx, TCA_OPTIONS);
5605 struct rtattr *tb[tca_max + 1];
5609 if (nlh->nlmsg_type != RTM_NEWTFILTER &&
5610 nlh->nlmsg_type != RTM_GETTFILTER &&
5611 nlh->nlmsg_type != RTM_DELTFILTER)
5613 len -= NLMSG_LENGTH(sizeof(*t));
5616 flow_tcf_nl_parse_rtattr(tb, tca_max, TCA_RTA(t), len);
5617 /* Not a TC flower flow - bail out */
5618 if (!tb[TCA_KIND] ||
5619 strcmp(RTA_DATA(tb[TCA_KIND]), "flower"))
5621 switch (rta_type[idx]) {
5623 if (tb[TCA_OPTIONS])
5624 return flow_tcf_nl_opts_parse_and_get(tb[TCA_OPTIONS],
5635 * A callback to parse Netlink reply on TC flower query.
5638 * Message received from Netlink.
5640 * Pointer to data area to be filled by the parsing routine.
5641 * assumed to be a pointer to struct flow_tcf_stats_basic.
5647 flow_tcf_nl_message_get_stats_basic(const struct nlmsghdr *nlh, void *data)
5650 * The backward sequence of rta_types to pass in order to get
5653 uint16_t rta_type[] = { TCA_STATS_BASIC, TCA_ACT_STATS,
5654 TCA_FLOWER_ACT, TCA_OPTIONS };
5655 struct flow_tcf_stats_basic *sb_data = data;
5657 const struct nlmsghdr *c;
5658 struct nlmsghdr *nc;
5659 } tnlh = { .c = nlh };
5661 if (!flow_tcf_nl_filter_parse_and_get(tnlh.nc, rta_type,
5662 RTE_DIM(rta_type) - 1,
5663 (void *)&sb_data->counters))
5664 sb_data->valid = true;
5669 * Query a TC flower rule for its statistics via netlink.
5672 * Pointer to Ethernet device.
5674 * Pointer to the sub flow.
5676 * data retrieved by the query.
5678 * Perform verbose error reporting if not NULL.
5681 * 0 on success, a negative errno value otherwise and rte_errno is set.
5684 flow_tcf_query_count(struct rte_eth_dev *dev,
5685 struct rte_flow *flow,
5687 struct rte_flow_error *error)
5689 struct flow_tcf_stats_basic sb_data;
5690 struct rte_flow_query_count *qc = data;
5691 struct priv *priv = dev->data->dev_private;
5692 struct mlx5_flow_tcf_context *ctx = priv->tcf_context;
5693 struct mnl_socket *nl = ctx->nl;
5694 struct mlx5_flow *dev_flow;
5695 struct nlmsghdr *nlh;
5696 uint32_t seq = priv->tcf_context->seq++;
5700 memset(&sb_data, 0, sizeof(sb_data));
5701 dev_flow = LIST_FIRST(&flow->dev_flows);
5702 /* E-Switch flow can't be expanded. */
5703 assert(!LIST_NEXT(dev_flow, next));
5704 if (!dev_flow->flow->counter)
5706 nlh = dev_flow->tcf.nlh;
5707 nlh->nlmsg_type = RTM_GETTFILTER;
5708 nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_ECHO;
5709 nlh->nlmsg_seq = seq;
5710 if (mnl_socket_sendto(nl, nlh, nlh->nlmsg_len) == -1)
5713 ret = mnl_socket_recvfrom(nl, ctx->buf, ctx->buf_size);
5716 ret = mnl_cb_run(ctx->buf, ret, seq,
5717 mnl_socket_get_portid(nl),
5718 flow_tcf_nl_message_get_stats_basic,
5721 /* Return the delta from last reset. */
5722 if (sb_data.valid) {
5723 /* Return the delta from last reset. */
5726 qc->hits = sb_data.counters.packets - flow->counter->hits;
5727 qc->bytes = sb_data.counters.bytes - flow->counter->bytes;
5729 flow->counter->hits = sb_data.counters.packets;
5730 flow->counter->bytes = sb_data.counters.bytes;
5734 return rte_flow_error_set(error, EINVAL,
5735 RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
5737 "flow does not have counter");
5739 return rte_flow_error_set
5740 (error, errno, RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
5741 NULL, "netlink: failed to read flow rule counters");
5743 return rte_flow_error_set
5744 (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
5745 NULL, "counters are not available.");
5751 * @see rte_flow_query()
5755 flow_tcf_query(struct rte_eth_dev *dev,
5756 struct rte_flow *flow,
5757 const struct rte_flow_action *actions,
5759 struct rte_flow_error *error)
5763 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
5764 switch (actions->type) {
5765 case RTE_FLOW_ACTION_TYPE_VOID:
5767 case RTE_FLOW_ACTION_TYPE_COUNT:
5768 ret = flow_tcf_query_count(dev, flow, data, error);
5771 return rte_flow_error_set(error, ENOTSUP,
5772 RTE_FLOW_ERROR_TYPE_ACTION,
5774 "action not supported");
5780 const struct mlx5_flow_driver_ops mlx5_flow_tcf_drv_ops = {
5781 .validate = flow_tcf_validate,
5782 .prepare = flow_tcf_prepare,
5783 .translate = flow_tcf_translate,
5784 .apply = flow_tcf_apply,
5785 .remove = flow_tcf_remove,
5786 .destroy = flow_tcf_destroy,
5787 .query = flow_tcf_query,
5791 * Create and configure a libmnl socket for Netlink flow rules.
5794 * A valid libmnl socket object pointer on success, NULL otherwise and
5797 static struct mnl_socket *
5798 flow_tcf_mnl_socket_create(void)
5800 struct mnl_socket *nl = mnl_socket_open(NETLINK_ROUTE);
5803 mnl_socket_setsockopt(nl, NETLINK_CAP_ACK, &(int){ 1 },
5805 if (!mnl_socket_bind(nl, 0, MNL_SOCKET_AUTOPID))
5810 mnl_socket_close(nl);
5815 * Destroy a libmnl socket.
5818 * Libmnl socket of the @p NETLINK_ROUTE kind.
5821 flow_tcf_mnl_socket_destroy(struct mnl_socket *nl)
5824 mnl_socket_close(nl);
5828 * Initialize ingress qdisc of a given network interface.
5831 * Pointer to tc-flower context to use.
5833 * Index of network interface to initialize.
5835 * Perform verbose error reporting if not NULL.
5838 * 0 on success, a negative errno value otherwise and rte_errno is set.
5841 mlx5_flow_tcf_init(struct mlx5_flow_tcf_context *ctx,
5842 unsigned int ifindex, struct rte_flow_error *error)
5844 struct nlmsghdr *nlh;
5846 alignas(struct nlmsghdr)
5847 uint8_t buf[mnl_nlmsg_size(sizeof(*tcm)) +
5848 SZ_NLATTR_STRZ_OF("ingress") +
5849 MNL_BUF_EXTRA_SPACE];
5851 /* Destroy existing ingress qdisc and everything attached to it. */
5852 nlh = mnl_nlmsg_put_header(buf);
5853 nlh->nlmsg_type = RTM_DELQDISC;
5854 nlh->nlmsg_flags = NLM_F_REQUEST;
5855 tcm = mnl_nlmsg_put_extra_header(nlh, sizeof(*tcm));
5856 tcm->tcm_family = AF_UNSPEC;
5857 tcm->tcm_ifindex = ifindex;
5858 tcm->tcm_handle = TC_H_MAKE(TC_H_INGRESS, 0);
5859 tcm->tcm_parent = TC_H_INGRESS;
5860 assert(sizeof(buf) >= nlh->nlmsg_len);
5861 /* Ignore errors when qdisc is already absent. */
5862 if (flow_tcf_nl_ack(ctx, nlh, NULL, NULL) &&
5863 rte_errno != EINVAL && rte_errno != ENOENT)
5864 return rte_flow_error_set(error, rte_errno,
5865 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
5866 "netlink: failed to remove ingress"
5868 /* Create fresh ingress qdisc. */
5869 nlh = mnl_nlmsg_put_header(buf);
5870 nlh->nlmsg_type = RTM_NEWQDISC;
5871 nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL;
5872 tcm = mnl_nlmsg_put_extra_header(nlh, sizeof(*tcm));
5873 tcm->tcm_family = AF_UNSPEC;
5874 tcm->tcm_ifindex = ifindex;
5875 tcm->tcm_handle = TC_H_MAKE(TC_H_INGRESS, 0);
5876 tcm->tcm_parent = TC_H_INGRESS;
5877 mnl_attr_put_strz_check(nlh, sizeof(buf), TCA_KIND, "ingress");
5878 assert(sizeof(buf) >= nlh->nlmsg_len);
5879 if (flow_tcf_nl_ack(ctx, nlh, NULL, NULL))
5880 return rte_flow_error_set(error, rte_errno,
5881 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
5882 "netlink: failed to create ingress"
5888 * Create libmnl context for Netlink flow rules.
5891 * A valid libmnl socket object pointer on success, NULL otherwise and
5894 struct mlx5_flow_tcf_context *
5895 mlx5_flow_tcf_context_create(void)
5897 struct mlx5_flow_tcf_context *ctx = rte_zmalloc(__func__,
5902 ctx->nl = flow_tcf_mnl_socket_create();
5905 ctx->buf_size = MNL_SOCKET_BUFFER_SIZE;
5906 ctx->buf = rte_zmalloc(__func__,
5907 ctx->buf_size, sizeof(uint32_t));
5910 ctx->seq = random();
5913 mlx5_flow_tcf_context_destroy(ctx);
5918 * Destroy a libmnl context.
5921 * Libmnl socket of the @p NETLINK_ROUTE kind.
5924 mlx5_flow_tcf_context_destroy(struct mlx5_flow_tcf_context *ctx)
5928 flow_tcf_mnl_socket_destroy(ctx->nl);