Acked-by: Nithin Dabilpuram<ndabilpu...@marvell.com>
On Wed, May 31, 2023 at 5:08 PM Amit Prakash Shukla
<amitpraka...@marvell.com> wrote:
>
> From: Sunil Kumar Kori <sk...@marvell.com>
>
> Similar to IPv4 lookup node, patch adds IPv6 lookup
> node.
>
> Signed-off-by: Sunil Kumar Kori <sk...@marvell.com>
> Signed-off-by: Amit Prakash Shukla <amitpraka...@marvell.com>
> ---
> v2:
> - Performance related changes
>
> v3:
> - Removing redundant dynamic variable
>
> doc/guides/prog_guide/graph_lib.rst | 13 +
> lib/node/ip6_lookup.c | 372 ++++++++++++++++++++++++++++
> lib/node/meson.build | 3 +-
> lib/node/node_private.h | 2 +-
> lib/node/pkt_cls.c | 14 ++
> lib/node/pkt_cls_priv.h | 1 +
> lib/node/rte_node_ip6_api.h | 80 ++++++
> lib/node/version.map | 2 +
> 8 files changed, 485 insertions(+), 2 deletions(-)
> create mode 100644 lib/node/ip6_lookup.c
> create mode 100644 lib/node/rte_node_ip6_api.h
>
> diff --git a/doc/guides/prog_guide/graph_lib.rst
> b/doc/guides/prog_guide/graph_lib.rst
> index 1cfdc86433..1f70d63628 100644
> --- a/doc/guides/prog_guide/graph_lib.rst
> +++ b/doc/guides/prog_guide/graph_lib.rst
> @@ -388,6 +388,19 @@ to determine the L2 header to be written to the packet
> before sending
> the packet out to a particular ethdev_tx node.
> ``rte_node_ip4_rewrite_add()`` is control path API to add next-hop info.
>
> +ip6_lookup
> +~~~~~~~~~~
> +This node is an intermediate node that does LPM lookup for the received
> +ipv6 packets and the result determines each packets next node.
> +
> +On successful LPM lookup, the result contains the ``next_node`` id and
> +``next-hop`` id with which the packet needs to be further processed.
> +
> +On LPM lookup failure, objects are redirected to pkt_drop node.
> +``rte_node_ip6_route_add()`` is control path API to add ipv6 routes.
> +To achieve home run, node use ``rte_node_stream_move()`` as mentioned in
> above
> +sections.
> +
> null
> ~~~~
> This node ignores the set of objects passed to it and reports that all are
> diff --git a/lib/node/ip6_lookup.c b/lib/node/ip6_lookup.c
> new file mode 100644
> index 0000000000..e4bbc7ed67
> --- /dev/null
> +++ b/lib/node/ip6_lookup.c
> @@ -0,0 +1,372 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(C) 2023 Marvell.
> + */
> +
> +#include <arpa/inet.h>
> +#include <sys/socket.h>
> +
> +#include <rte_ethdev.h>
> +#include <rte_ether.h>
> +#include <rte_graph.h>
> +#include <rte_graph_worker.h>
> +#include <rte_ip.h>
> +#include <rte_lpm6.h>
> +
> +#include "rte_node_ip6_api.h"
> +
> +#include "node_private.h"
> +
> +#define IPV6_L3FWD_LPM_MAX_RULES 1024
> +#define IPV6_L3FWD_LPM_NUMBER_TBL8S (1 << 8)
> +
> +/* IP6 Lookup global data struct */
> +struct ip6_lookup_node_main {
> + struct rte_lpm6 *lpm_tbl[RTE_MAX_NUMA_NODES];
> +};
> +
> +struct ip6_lookup_node_ctx {
> + /* Socket's LPM table */
> + struct rte_lpm6 *lpm6;
> + /* Dynamic offset to mbuf priv1 */
> + int mbuf_priv1_off;
> +};
> +
> +static struct ip6_lookup_node_main ip6_lookup_nm;
> +
> +#define IP6_LOOKUP_NODE_LPM(ctx) \
> + (((struct ip6_lookup_node_ctx *)ctx)->lpm6)
> +
> +#define IP6_LOOKUP_NODE_PRIV1_OFF(ctx) \
> + (((struct ip6_lookup_node_ctx *)ctx)->mbuf_priv1_off)
> +
> +static uint16_t
> +ip6_lookup_node_process_scalar(struct rte_graph *graph, struct rte_node
> *node,
> + void **objs, uint16_t nb_objs)
> +{
> + struct rte_mbuf *mbuf0, *mbuf1, *mbuf2, *mbuf3, **pkts;
> + struct rte_lpm6 *lpm6 = IP6_LOOKUP_NODE_LPM(node->ctx);
> + const int dyn = IP6_LOOKUP_NODE_PRIV1_OFF(node->ctx);
> + struct rte_ipv6_hdr *ipv6_hdr;
> + void **to_next, **from;
> + uint16_t last_spec = 0;
> + rte_edge_t next_index;
> + uint16_t n_left_from;
> + uint16_t held = 0;
> + uint32_t drop_nh;
> + int i, rc;
> +
> + /* Speculative next */
> + next_index = RTE_NODE_IP6_LOOKUP_NEXT_REWRITE;
> + /* Drop node */
> + drop_nh = ((uint32_t)RTE_NODE_IP6_LOOKUP_NEXT_PKT_DROP) << 16;
> +
> + pkts = (struct rte_mbuf **)objs;
> + from = objs;
> + n_left_from = nb_objs;
> +
> + for (i = OBJS_PER_CLINE; i < RTE_GRAPH_BURST_SIZE; i +=
> OBJS_PER_CLINE)
> + rte_prefetch0(&objs[i]);
> +
> + for (i = 0; i < 4 && i < n_left_from; i++)
> + rte_prefetch0(rte_pktmbuf_mtod_offset(pkts[i], void *,
> + sizeof(struct
> rte_ether_hdr)));
> +
> + /* Get stream for the speculated next node */
> + to_next = rte_node_next_stream_get(graph, node, next_index, nb_objs);
> + while (n_left_from >= 4) {
> + uint8_t ip_batch[4][16];
> + int32_t next_hop[4];
> + uint16_t next[4];
> +
> +#if RTE_GRAPH_BURST_SIZE > 64
> + /* Prefetch next-next mbufs */
> + if (likely(n_left_from > 11)) {
> + rte_prefetch0(pkts[8]);
> + rte_prefetch0(pkts[9]);
> + rte_prefetch0(pkts[10]);
> + rte_prefetch0(pkts[11]);
> + }
> +#endif
> + /* Prefetch next mbuf data */
> + if (likely(n_left_from > 7)) {
> + rte_prefetch0(rte_pktmbuf_mtod_offset(pkts[4], void *,
> + sizeof(struct
> rte_ether_hdr)));
> + rte_prefetch0(rte_pktmbuf_mtod_offset(pkts[5], void *,
> + sizeof(struct
> rte_ether_hdr)));
> + rte_prefetch0(rte_pktmbuf_mtod_offset(pkts[6], void *,
> + sizeof(struct
> rte_ether_hdr)));
> + rte_prefetch0(rte_pktmbuf_mtod_offset(pkts[7], void *,
> + sizeof(struct
> rte_ether_hdr)));
> + }
> +
> + mbuf0 = pkts[0];
> + mbuf1 = pkts[1];
> + mbuf2 = pkts[2];
> + mbuf3 = pkts[3];
> +
> + pkts += 4;
> + n_left_from -= 4;
> +
> + /* Extract DIP of mbuf0 */
> + ipv6_hdr = rte_pktmbuf_mtod_offset(mbuf0, struct rte_ipv6_hdr
> *,
> + sizeof(struct rte_ether_hdr));
> + /* Extract hop_limits as ipv6 hdr is in cache */
> + node_mbuf_priv1(mbuf0, dyn)->ttl = ipv6_hdr->hop_limits;
> + rte_memcpy(ip_batch[0], ipv6_hdr->dst_addr, 16);
> +
> + /* Extract DIP of mbuf1 */
> + ipv6_hdr = rte_pktmbuf_mtod_offset(mbuf1, struct rte_ipv6_hdr
> *,
> + sizeof(struct rte_ether_hdr));
> + /* Extract hop_limits as ipv6 hdr is in cache */
> + node_mbuf_priv1(mbuf1, dyn)->ttl = ipv6_hdr->hop_limits;
> + rte_memcpy(ip_batch[1], ipv6_hdr->dst_addr, 16);
> +
> + /* Extract DIP of mbuf2 */
> + ipv6_hdr = rte_pktmbuf_mtod_offset(mbuf2, struct rte_ipv6_hdr
> *,
> + sizeof(struct rte_ether_hdr));
> + /* Extract hop_limits as ipv6 hdr is in cache */
> + node_mbuf_priv1(mbuf2, dyn)->ttl = ipv6_hdr->hop_limits;
> + rte_memcpy(ip_batch[2], ipv6_hdr->dst_addr, 16);
> +
> + /* Extract DIP of mbuf3 */
> + ipv6_hdr = rte_pktmbuf_mtod_offset(mbuf3, struct rte_ipv6_hdr
> *,
> + sizeof(struct rte_ether_hdr));
> + /* Extract hop_limits as ipv6 hdr is in cache */
> + node_mbuf_priv1(mbuf3, dyn)->ttl = ipv6_hdr->hop_limits;
> + rte_memcpy(ip_batch[3], ipv6_hdr->dst_addr, 16);
> +
> + rc = rte_lpm6_lookup_bulk_func(lpm6, ip_batch, next_hop, 4);
> +
> + next_hop[0] = (next_hop[0] < 0) ? (int32_t)drop_nh :
> next_hop[0];
> + node_mbuf_priv1(mbuf0, dyn)->nh = (uint16_t)next_hop[0];
> + next[0] = (uint16_t)(next_hop[0] >> 16);
> +
> + next_hop[1] = (next_hop[1] < 0) ? (int32_t)drop_nh :
> next_hop[1];
> + node_mbuf_priv1(mbuf1, dyn)->nh = (uint16_t)next_hop[1];
> + next[1] = (uint16_t)(next_hop[1] >> 16);
> +
> + next_hop[2] = (next_hop[2] < 0) ? (int32_t)drop_nh :
> next_hop[2];
> + node_mbuf_priv1(mbuf2, dyn)->nh = (uint16_t)next_hop[2];
> + next[2] = (uint16_t)(next_hop[2] >> 16);
> +
> + next_hop[3] = (next_hop[3] < 0) ? (int32_t)drop_nh :
> next_hop[3];
> + node_mbuf_priv1(mbuf3, dyn)->nh = (uint16_t)next_hop[3];
> + next[3] = (uint16_t)(next_hop[3] >> 16);
> +
> + rte_edge_t fix_spec = ((next_index == next[0]) &&
> + (next_index == next[1]) &&
> + (next_index == next[2]) &&
> + (next_index == next[3]));
> +
> + if (unlikely(fix_spec == 0)) {
> + /* Copy things successfully speculated till now */
> + rte_memcpy(to_next, from, last_spec *
> sizeof(from[0]));
> + from += last_spec;
> + to_next += last_spec;
> + held += last_spec;
> + last_spec = 0;
> +
> + /* Next0 */
> + if (next_index == next[0]) {
> + to_next[0] = from[0];
> + to_next++;
> + held++;
> + } else {
> + rte_node_enqueue_x1(graph, node, next[0],
> from[0]);
> + }
> +
> + /* Next1 */
> + if (next_index == next[1]) {
> + to_next[0] = from[1];
> + to_next++;
> + held++;
> + } else {
> + rte_node_enqueue_x1(graph, node, next[1],
> from[1]);
> + }
> +
> + /* Next2 */
> + if (next_index == next[2]) {
> + to_next[0] = from[2];
> + to_next++;
> + held++;
> + } else {
> + rte_node_enqueue_x1(graph, node, next[2],
> from[2]);
> + }
> +
> + /* Next3 */
> + if (next_index == next[3]) {
> + to_next[0] = from[3];
> + to_next++;
> + held++;
> + } else {
> + rte_node_enqueue_x1(graph, node, next[3],
> from[3]);
> + }
> +
> + from += 4;
> + } else {
> + last_spec += 4;
> + }
> + }
> +
> + while (n_left_from > 0) {
> + uint32_t next_hop;
> + uint16_t next0;
> +
> + mbuf0 = pkts[0];
> +
> + pkts += 1;
> + n_left_from -= 1;
> +
> + /* Extract DIP of mbuf0 */
> + ipv6_hdr = rte_pktmbuf_mtod_offset(mbuf0, struct rte_ipv6_hdr
> *,
> + sizeof(struct rte_ether_hdr));
> + /* Extract ttl as ipv6 hdr is in cache */
> + node_mbuf_priv1(mbuf0, dyn)->ttl = ipv6_hdr->hop_limits;
> +
> + rc = rte_lpm6_lookup(lpm6, ipv6_hdr->dst_addr, &next_hop);
> + next_hop = (rc == 0) ? next_hop : drop_nh;
> +
> + node_mbuf_priv1(mbuf0, dyn)->nh = (uint16_t)next_hop;
> + next_hop = next_hop >> 16;
> + next0 = (uint16_t)next_hop;
> +
> + if (unlikely(next_index ^ next0)) {
> + /* Copy things successfully speculated till now */
> + rte_memcpy(to_next, from, last_spec *
> sizeof(from[0]));
> + from += last_spec;
> + to_next += last_spec;
> + held += last_spec;
> + last_spec = 0;
> +
> + rte_node_enqueue_x1(graph, node, next0, from[0]);
> + from += 1;
> + } else {
> + last_spec += 1;
> + }
> + }
> +
> + /* !!! Home run !!! */
> + if (likely(last_spec == nb_objs)) {
> + rte_node_next_stream_move(graph, node, next_index);
> + return nb_objs;
> + }
> + held += last_spec;
> + rte_memcpy(to_next, from, last_spec * sizeof(from[0]));
> + rte_node_next_stream_put(graph, node, next_index, held);
> +
> + return nb_objs;
> +}
> +
> +int
> +rte_node_ip6_route_add(const uint8_t *ip, uint8_t depth, uint16_t next_hop,
> + enum rte_node_ip6_lookup_next next_node)
> +{
> + char abuf[INET6_ADDRSTRLEN];
> + struct in6_addr in6;
> + uint8_t socket;
> + uint32_t val;
> + int ret;
> +
> + memcpy(in6.s6_addr, ip, RTE_LPM6_IPV6_ADDR_SIZE);
> + inet_ntop(AF_INET6, &in6, abuf, sizeof(abuf));
> + /* Embedded next node id into 24 bit next hop */
> + val = ((next_node << 16) | next_hop) & ((1ull << 24) - 1);
> + node_dbg("ip6_lookup", "LPM: Adding route %s / %d nh (0x%x)", abuf,
> + depth, val);
> +
> + for (socket = 0; socket < RTE_MAX_NUMA_NODES; socket++) {
> + if (!ip6_lookup_nm.lpm_tbl[socket])
> + continue;
> +
> + ret = rte_lpm6_add(ip6_lookup_nm.lpm_tbl[socket], ip, depth,
> + val);
> + if (ret < 0) {
> + node_err("ip6_lookup",
> + "Unable to add entry %s / %d nh (%x) to LPM "
> + "table on sock %d, rc=%d\n",
> + abuf, depth, val, socket, ret);
> + return ret;
> + }
> + }
> +
> + return 0;
> +}
> +
> +static int
> +setup_lpm6(struct ip6_lookup_node_main *nm, int socket)
> +{
> + struct rte_lpm6_config config_ipv6;
> + char s[RTE_LPM6_NAMESIZE];
> +
> + /* One LPM table per socket */
> + if (nm->lpm_tbl[socket])
> + return 0;
> +
> + /* create the LPM table */
> + config_ipv6.max_rules = IPV6_L3FWD_LPM_MAX_RULES;
> + config_ipv6.number_tbl8s = IPV6_L3FWD_LPM_NUMBER_TBL8S;
> + config_ipv6.flags = 0;
> + snprintf(s, sizeof(s), "IPV6_L3FWD_LPM_%d", socket);
> + nm->lpm_tbl[socket] = rte_lpm6_create(s, socket, &config_ipv6);
> + if (nm->lpm_tbl[socket] == NULL)
> + return -rte_errno;
> +
> + return 0;
> +}
> +
> +static int
> +ip6_lookup_node_init(const struct rte_graph *graph, struct rte_node *node)
> +{
> + uint16_t socket, lcore_id;
> + static uint8_t init_once;
> + int rc;
> +
> + RTE_SET_USED(graph);
> + RTE_BUILD_BUG_ON(sizeof(struct ip6_lookup_node_ctx) >
> RTE_NODE_CTX_SZ);
> +
> + if (!init_once) {
> + node_mbuf_priv1_dynfield_offset =
> + rte_mbuf_dynfield_register(
> + &node_mbuf_priv1_dynfield_desc);
> + if (node_mbuf_priv1_dynfield_offset < 0)
> + return -rte_errno;
> +
> + /* Setup LPM tables for all sockets */
> + RTE_LCORE_FOREACH(lcore_id)
> + {
> + socket = rte_lcore_to_socket_id(lcore_id);
> + rc = setup_lpm6(&ip6_lookup_nm, socket);
> + if (rc) {
> + node_err("ip6_lookup",
> + "Failed to setup lpm6 tbl for "
> + "sock %u, rc=%d", socket, rc);
> + return rc;
> + }
> + }
> + init_once = 1;
> + }
> +
> + /* Update socket's LPM and mbuf dyn priv1 offset in node ctx */
> + IP6_LOOKUP_NODE_LPM(node->ctx) = ip6_lookup_nm.lpm_tbl[graph->socket];
> + IP6_LOOKUP_NODE_PRIV1_OFF(node->ctx) =
> + node_mbuf_priv1_dynfield_offset;
> +
> + node_dbg("ip6_lookup", "Initialized ip6_lookup node");
> +
> + return 0;
> +}
> +
> +static struct rte_node_register ip6_lookup_node = {
> + .process = ip6_lookup_node_process_scalar,
> + .name = "ip6_lookup",
> +
> + .init = ip6_lookup_node_init,
> +
> + .nb_edges = RTE_NODE_IP6_LOOKUP_NEXT_MAX,
> + .next_nodes = {
> + [RTE_NODE_IP6_LOOKUP_NEXT_REWRITE] = "ip6_rewrite",
> + [RTE_NODE_IP6_LOOKUP_NEXT_PKT_DROP] = "pkt_drop",
> + },
> +};
> +
> +RTE_NODE_REGISTER(ip6_lookup_node);
> diff --git a/lib/node/meson.build b/lib/node/meson.build
> index dbdf673c86..cd30847a0b 100644
> --- a/lib/node/meson.build
> +++ b/lib/node/meson.build
> @@ -12,13 +12,14 @@ sources = files(
> 'ethdev_rx.c',
> 'ethdev_tx.c',
> 'ip4_lookup.c',
> + 'ip6_lookup.c',
> 'ip4_rewrite.c',
> 'log.c',
> 'null.c',
> 'pkt_cls.c',
> 'pkt_drop.c',
> )
> -headers = files('rte_node_ip4_api.h', 'rte_node_eth_api.h')
> +headers = files('rte_node_ip4_api.h', 'rte_node_ip6_api.h',
> 'rte_node_eth_api.h')
> # Strict-aliasing rules are violated by uint8_t[] to context size casts.
> cflags += '-fno-strict-aliasing'
> deps += ['graph', 'mbuf', 'lpm', 'ethdev', 'mempool', 'cryptodev']
> diff --git a/lib/node/node_private.h b/lib/node/node_private.h
> index 8c73d5dc10..26135aaa5b 100644
> --- a/lib/node/node_private.h
> +++ b/lib/node/node_private.h
> @@ -26,7 +26,7 @@ extern int rte_node_logtype;
> */
> struct node_mbuf_priv1 {
> union {
> - /* IP4 rewrite */
> + /* IP4/IP6 rewrite */
> struct {
> uint16_t nh;
> uint16_t ttl;
> diff --git a/lib/node/pkt_cls.c b/lib/node/pkt_cls.c
> index 3e75f2cf78..a8302b8d28 100644
> --- a/lib/node/pkt_cls.c
> +++ b/lib/node/pkt_cls.c
> @@ -24,6 +24,19 @@ static const uint8_t p_nxt[256] __rte_cache_aligned = {
>
> [RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L2_ETHER] =
> PKT_CLS_NEXT_IP4_LOOKUP,
> +
> + [RTE_PTYPE_L3_IPV6] = PKT_CLS_NEXT_IP6_LOOKUP,
> +
> + [RTE_PTYPE_L3_IPV6_EXT] = PKT_CLS_NEXT_IP6_LOOKUP,
> +
> + [RTE_PTYPE_L3_IPV6_EXT_UNKNOWN] = PKT_CLS_NEXT_IP6_LOOKUP,
> +
> + [RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L2_ETHER] = PKT_CLS_NEXT_IP6_LOOKUP,
> +
> + [RTE_PTYPE_L3_IPV6_EXT | RTE_PTYPE_L2_ETHER] =
> PKT_CLS_NEXT_IP6_LOOKUP,
> +
> + [RTE_PTYPE_L3_IPV6_EXT_UNKNOWN | RTE_PTYPE_L2_ETHER] =
> + PKT_CLS_NEXT_IP6_LOOKUP,
> };
>
> static uint16_t
> @@ -216,6 +229,7 @@ struct rte_node_register pkt_cls_node = {
> /* Pkt drop node starts at '0' */
> [PKT_CLS_NEXT_PKT_DROP] = "pkt_drop",
> [PKT_CLS_NEXT_IP4_LOOKUP] = "ip4_lookup",
> + [PKT_CLS_NEXT_IP6_LOOKUP] = "ip6_lookup",
> },
> };
> RTE_NODE_REGISTER(pkt_cls_node);
> diff --git a/lib/node/pkt_cls_priv.h b/lib/node/pkt_cls_priv.h
> index 6f5374f0be..16135807a1 100644
> --- a/lib/node/pkt_cls_priv.h
> +++ b/lib/node/pkt_cls_priv.h
> @@ -13,6 +13,7 @@ struct pkt_cls_node_ctx {
> enum pkt_cls_next_nodes {
> PKT_CLS_NEXT_PKT_DROP,
> PKT_CLS_NEXT_IP4_LOOKUP,
> + PKT_CLS_NEXT_IP6_LOOKUP,
> PKT_CLS_NEXT_MAX,
> };
>
> diff --git a/lib/node/rte_node_ip6_api.h b/lib/node/rte_node_ip6_api.h
> new file mode 100644
> index 0000000000..1696ed154d
> --- /dev/null
> +++ b/lib/node/rte_node_ip6_api.h
> @@ -0,0 +1,80 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(C) 2023 Marvell.
> + */
> +
> +#ifndef __INCLUDE_RTE_NODE_IP6_API_H__
> +#define __INCLUDE_RTE_NODE_IP6_API_H__
> +
> +/**
> + * @file rte_node_ip6_api.h
> + *
> + * @warning
> + * @b EXPERIMENTAL:
> + * All functions in this file may be changed or removed without prior notice.
> + *
> + * This API allows to do control path functions of ip6_* nodes
> + * like ip6_lookup, ip6_rewrite.
> + *
> + */
> +#ifdef __cplusplus
> +extern "C" {
> +#endif
> +
> +#include <rte_common.h>
> +#include <rte_compat.h>
> +
> +/**
> + * IP6 lookup next nodes.
> + */
> +enum rte_node_ip6_lookup_next {
> + RTE_NODE_IP6_LOOKUP_NEXT_REWRITE,
> + /**< Rewrite node. */
> + RTE_NODE_IP6_LOOKUP_NEXT_PKT_DROP,
> + /**< Packet drop node. */
> + RTE_NODE_IP6_LOOKUP_NEXT_MAX,
> + /**< Number of next nodes of lookup node. */
> +};
> +
> +/**
> + * Add ipv6 route to lookup table.
> + *
> + * @param ip
> + * IPv6 address of route to be added.
> + * @param depth
> + * Depth of the rule to be added.
> + * @param next_hop
> + * Next hop id of the rule result to be added.
> + * @param next_node
> + * Next node to redirect traffic to.
> + *
> + * @return
> + * 0 on success, negative otherwise.
> + */
> +__rte_experimental
> +int rte_node_ip6_route_add(const uint8_t *ip, uint8_t depth, uint16_t
> next_hop,
> + enum rte_node_ip6_lookup_next next_node);
> +
> +/**
> + * Add a next hop's rewrite data.
> + *
> + * @param next_hop
> + * Next hop id to add rewrite data to.
> + * @param rewrite_data
> + * Rewrite data.
> + * @param rewrite_len
> + * Length of rewrite data.
> + * @param dst_port
> + * Destination port to redirect traffic to.
> + *
> + * @return
> + * 0 on success, negative otherwise.
> + */
> +__rte_experimental
> +int rte_node_ip6_rewrite_add(uint16_t next_hop, uint8_t *rewrite_data,
> + uint8_t rewrite_len, uint16_t dst_port);
> +
> +#ifdef __cplusplus
> +}
> +#endif
> +
> +#endif /* __INCLUDE_RTE_NODE_IP6_API_H__ */
> diff --git a/lib/node/version.map b/lib/node/version.map
> index a799b0d389..40df308bfe 100644
> --- a/lib/node/version.map
> +++ b/lib/node/version.map
> @@ -4,6 +4,8 @@ EXPERIMENTAL {
> rte_node_eth_config;
> rte_node_ip4_route_add;
> rte_node_ip4_rewrite_add;
> + rte_node_ip6_rewrite_add;
> + rte_node_ip6_route_add;
> rte_node_logtype;
> local: *;
> };
> --
> 2.25.1
>
