Move fast path helper functions to header file for easy access.
Signed-off-by: Nithin Dabilpuram <ndabilpu...@marvell.com>
---
v2:
- Moved this patch from 4/7 to 1/7 to keep all moving as first patch
without any change in function.
- In patch 1/7, handled comments from Konstantin to check for capabilities
before
using Tx offload in case of LA and also to enable Checksum offload in case of
TSO+Inline Protocol
- In patch 2/7, handled comments from Konstantin to use RTE_ETH_IS* macros and
- In patch 2/7, used tx_offload field and RTE_MBUF_L2_LEN_BITS shift to write to
mbuf->tx_offload instead of bitfield access so that it is cleared and
there is only stores and no loads.
- In patch 5/7, made few fast path functions always_inline
examples/ipsec-secgw/ipsec-secgw.c | 575 +---------------------------------
examples/ipsec-secgw/ipsec-secgw.h | 4 +
examples/ipsec-secgw/ipsec.h | 34 ++
examples/ipsec-secgw/ipsec_process.c | 49 +--
examples/ipsec-secgw/ipsec_worker.h | 588 +++++++++++++++++++++++++++++++++++
5 files changed, 630 insertions(+), 620 deletions(-)
diff --git a/examples/ipsec-secgw/ipsec-secgw.c
b/examples/ipsec-secgw/ipsec-secgw.c
index 42b5081..959a20b 100644
--- a/examples/ipsec-secgw/ipsec-secgw.c
+++ b/examples/ipsec-secgw/ipsec-secgw.c
@@ -70,11 +70,6 @@ volatile bool force_quit;
#define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
-/* Configure how many packets ahead to prefetch, when reading packets */
-#define PREFETCH_OFFSET 3
-
-#define MAX_RX_QUEUE_PER_LCORE 16
-
#define MAX_LCORE_PARAMS 1024
/*
@@ -191,9 +186,9 @@ static uint64_t dev_tx_offload = UINT64_MAX;
/*
* global values that determine multi-seg policy
*/
-static uint32_t frag_tbl_sz;
+uint32_t frag_tbl_sz;
static uint32_t frame_buf_size = RTE_MBUF_DEFAULT_BUF_SIZE;
-static uint32_t mtu_size = RTE_ETHER_MTU;
+uint32_t mtu_size = RTE_ETHER_MTU;
static uint64_t frag_ttl_ns = MAX_FRAG_TTL_NS;
static uint32_t stats_interval;
@@ -205,11 +200,6 @@ struct app_sa_prm app_sa_prm = {
};
static const char *cfgfile;
-struct lcore_rx_queue {
- uint16_t port_id;
- uint8_t queue_id;
-} __rte_cache_aligned;
-
struct lcore_params {
uint16_t port_id;
uint8_t queue_id;
@@ -224,28 +214,7 @@ static uint16_t nb_lcore_params;
static struct rte_hash *cdev_map_in;
static struct rte_hash *cdev_map_out;
-struct buffer {
- uint16_t len;
- struct rte_mbuf *m_table[MAX_PKT_BURST] __rte_aligned(sizeof(void *));
-};
-
-struct lcore_conf {
- uint16_t nb_rx_queue;
- struct lcore_rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
- uint16_t tx_queue_id[RTE_MAX_ETHPORTS];
- struct buffer tx_mbufs[RTE_MAX_ETHPORTS];
- struct ipsec_ctx inbound;
- struct ipsec_ctx outbound;
- struct rt_ctx *rt4_ctx;
- struct rt_ctx *rt6_ctx;
- struct {
- struct rte_ip_frag_tbl *tbl;
- struct rte_mempool *pool_indir;
- struct rte_ip_frag_death_row dr;
- } frag;
-} __rte_cache_aligned;
-
-static struct lcore_conf lcore_conf[RTE_MAX_LCORE];
+struct lcore_conf lcore_conf[RTE_MAX_LCORE];
static struct rte_eth_conf port_conf = {
.rxmode = {
@@ -281,32 +250,6 @@ multi_seg_required(void)
frame_buf_size || frag_tbl_sz != 0);
}
-static inline void
-adjust_ipv4_pktlen(struct rte_mbuf *m, const struct rte_ipv4_hdr *iph,
- uint32_t l2_len)
-{
- uint32_t plen, trim;
-
- plen = rte_be_to_cpu_16(iph->total_length) + l2_len;
- if (plen < m->pkt_len) {
- trim = m->pkt_len - plen;
- rte_pktmbuf_trim(m, trim);
- }
-}
-
-static inline void
-adjust_ipv6_pktlen(struct rte_mbuf *m, const struct rte_ipv6_hdr *iph,
- uint32_t l2_len)
-{
- uint32_t plen, trim;
-
- plen = rte_be_to_cpu_16(iph->payload_len) + sizeof(*iph) + l2_len;
- if (plen < m->pkt_len) {
- trim = m->pkt_len - plen;
- rte_pktmbuf_trim(m, trim);
- }
-}
-
struct ipsec_core_statistics core_statistics[RTE_MAX_LCORE];
@@ -371,369 +314,6 @@ print_stats_cb(__rte_unused void *param)
rte_eal_alarm_set(stats_interval * US_PER_S, print_stats_cb, NULL);
}
-static inline void
-prepare_one_packet(struct rte_mbuf *pkt, struct ipsec_traffic *t)
-{
- const struct rte_ether_hdr *eth;
- const struct rte_ipv4_hdr *iph4;
- const struct rte_ipv6_hdr *iph6;
- const struct rte_udp_hdr *udp;
- uint16_t ip4_hdr_len;
- uint16_t nat_port;
-
- eth = rte_pktmbuf_mtod(pkt, const struct rte_ether_hdr *);
- if (eth->ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4)) {
-
- iph4 = (const struct rte_ipv4_hdr *)rte_pktmbuf_adj(pkt,
- RTE_ETHER_HDR_LEN);
- adjust_ipv4_pktlen(pkt, iph4, 0);
-
- switch (iph4->next_proto_id) {
- case IPPROTO_ESP:
- t->ipsec.pkts[(t->ipsec.num)++] = pkt;
- break;
- case IPPROTO_UDP:
- if (app_sa_prm.udp_encap == 1) {
- ip4_hdr_len = ((iph4->version_ihl &
- RTE_IPV4_HDR_IHL_MASK) *
- RTE_IPV4_IHL_MULTIPLIER);
- udp = rte_pktmbuf_mtod_offset(pkt,
- struct rte_udp_hdr *, ip4_hdr_len);
- nat_port = rte_cpu_to_be_16(IPSEC_NAT_T_PORT);
- if (udp->src_port == nat_port ||
- udp->dst_port == nat_port){
- t->ipsec.pkts[(t->ipsec.num)++] = pkt;
- pkt->packet_type |=
- MBUF_PTYPE_TUNNEL_ESP_IN_UDP;
- break;
- }
- }
- /* Fall through */
- default:
- t->ip4.data[t->ip4.num] = &iph4->next_proto_id;
- t->ip4.pkts[(t->ip4.num)++] = pkt;
- }
- pkt->l2_len = 0;
- pkt->l3_len = sizeof(*iph4);
- pkt->packet_type |= RTE_PTYPE_L3_IPV4;
- if (pkt->packet_type & RTE_PTYPE_L4_TCP)
- pkt->l4_len = sizeof(struct rte_tcp_hdr);
- else if (pkt->packet_type & RTE_PTYPE_L4_UDP)
- pkt->l4_len = sizeof(struct rte_udp_hdr);
- } else if (eth->ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV6)) {
- int next_proto;
- size_t l3len, ext_len;
- uint8_t *p;
-
- /* get protocol type */
- iph6 = (const struct rte_ipv6_hdr *)rte_pktmbuf_adj(pkt,
- RTE_ETHER_HDR_LEN);
- adjust_ipv6_pktlen(pkt, iph6, 0);
-
- next_proto = iph6->proto;
-
- /* determine l3 header size up to ESP extension */
- l3len = sizeof(struct ip6_hdr);
- p = rte_pktmbuf_mtod(pkt, uint8_t *);
- while (next_proto != IPPROTO_ESP && l3len < pkt->data_len &&
- (next_proto = rte_ipv6_get_next_ext(p + l3len,
- next_proto, &ext_len)) >= 0)
- l3len += ext_len;
-
- /* drop packet when IPv6 header exceeds first segment length */
- if (unlikely(l3len > pkt->data_len)) {
- free_pkts(&pkt, 1);
- return;
- }
-
- switch (next_proto) {
- case IPPROTO_ESP:
- t->ipsec.pkts[(t->ipsec.num)++] = pkt;
- break;
- case IPPROTO_UDP:
- if (app_sa_prm.udp_encap == 1) {
- udp = rte_pktmbuf_mtod_offset(pkt,
- struct rte_udp_hdr *, l3len);
- nat_port = rte_cpu_to_be_16(IPSEC_NAT_T_PORT);
- if (udp->src_port == nat_port ||
- udp->dst_port == nat_port){
- t->ipsec.pkts[(t->ipsec.num)++] = pkt;
- pkt->packet_type |=
- MBUF_PTYPE_TUNNEL_ESP_IN_UDP;
- break;
- }
- }
- /* Fall through */
- default:
- t->ip6.data[t->ip6.num] = &iph6->proto;
- t->ip6.pkts[(t->ip6.num)++] = pkt;
- }
- pkt->l2_len = 0;
- pkt->l3_len = l3len;
- pkt->packet_type |= RTE_PTYPE_L3_IPV6;
- } else {
- /* Unknown/Unsupported type, drop the packet */
- RTE_LOG(ERR, IPSEC, "Unsupported packet type 0x%x\n",
- rte_be_to_cpu_16(eth->ether_type));
- free_pkts(&pkt, 1);
- return;
- }
-
- /* Check if the packet has been processed inline. For inline protocol
- * processed packets, the metadata in the mbuf can be used to identify
- * the security processing done on the packet. The metadata will be
- * used to retrieve the application registered userdata associated
- * with the security session.
- */
-
- if (pkt->ol_flags & RTE_MBUF_F_RX_SEC_OFFLOAD &&
- rte_security_dynfield_is_registered()) {
- struct ipsec_sa *sa;
- struct ipsec_mbuf_metadata *priv;
- struct rte_security_ctx *ctx = (struct rte_security_ctx *)
- rte_eth_dev_get_sec_ctx(
- pkt->port);
-
- /* Retrieve the userdata registered. Here, the userdata
- * registered is the SA pointer.
- */
- sa = (struct ipsec_sa *)rte_security_get_userdata(ctx,
- *rte_security_dynfield(pkt));
- if (sa == NULL) {
- /* userdata could not be retrieved */
- return;
- }
-
- /* Save SA as priv member in mbuf. This will be used in the
- * IPsec selector(SP-SA) check.
- */
-
- priv = get_priv(pkt);
- priv->sa = sa;
- }
-}
-
-static inline void
-prepare_traffic(struct rte_mbuf **pkts, struct ipsec_traffic *t,
- uint16_t nb_pkts)
-{
- int32_t i;
-
- t->ipsec.num = 0;
- t->ip4.num = 0;
- t->ip6.num = 0;
-
- for (i = 0; i < (nb_pkts - PREFETCH_OFFSET); i++) {
- rte_prefetch0(rte_pktmbuf_mtod(pkts[i + PREFETCH_OFFSET],
- void *));
- prepare_one_packet(pkts[i], t);
- }
- /* Process left packets */
- for (; i < nb_pkts; i++)
- prepare_one_packet(pkts[i], t);
-}
-
-static inline void
-prepare_tx_pkt(struct rte_mbuf *pkt, uint16_t port,
- const struct lcore_conf *qconf)
-{
- struct ip *ip;
- struct rte_ether_hdr *ethhdr;
-
- ip = rte_pktmbuf_mtod(pkt, struct ip *);
-
- ethhdr = (struct rte_ether_hdr *)
- rte_pktmbuf_prepend(pkt, RTE_ETHER_HDR_LEN);
-
- if (ip->ip_v == IPVERSION) {
- pkt->ol_flags |= qconf->outbound.ipv4_offloads;
- pkt->l3_len = sizeof(struct ip);
- pkt->l2_len = RTE_ETHER_HDR_LEN;
-
- ip->ip_sum = 0;
-
- /* calculate IPv4 cksum in SW */
- if ((pkt->ol_flags & RTE_MBUF_F_TX_IP_CKSUM) == 0)
- ip->ip_sum = rte_ipv4_cksum((struct rte_ipv4_hdr *)ip);
-
- ethhdr->ether_type = rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4);
- } else {
- pkt->ol_flags |= qconf->outbound.ipv6_offloads;
- pkt->l3_len = sizeof(struct ip6_hdr);
- pkt->l2_len = RTE_ETHER_HDR_LEN;
-
- ethhdr->ether_type = rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV6);
- }
-
- memcpy(ðhdr->src_addr, ðaddr_tbl[port].src,
- sizeof(struct rte_ether_addr));
- memcpy(ðhdr->dst_addr, ðaddr_tbl[port].dst,
- sizeof(struct rte_ether_addr));
-}
-
-static inline void
-prepare_tx_burst(struct rte_mbuf *pkts[], uint16_t nb_pkts, uint16_t port,
- const struct lcore_conf *qconf)
-{
- int32_t i;
- const int32_t prefetch_offset = 2;
-
- for (i = 0; i < (nb_pkts - prefetch_offset); i++) {
- rte_mbuf_prefetch_part2(pkts[i + prefetch_offset]);
- prepare_tx_pkt(pkts[i], port, qconf);
- }
- /* Process left packets */
- for (; i < nb_pkts; i++)
- prepare_tx_pkt(pkts[i], port, qconf);
-}
-
-/* Send burst of packets on an output interface */
-static inline int32_t
-send_burst(struct lcore_conf *qconf, uint16_t n, uint16_t port)
-{
- struct rte_mbuf **m_table;
- int32_t ret;
- uint16_t queueid;
-
- queueid = qconf->tx_queue_id[port];
- m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table;
-
- prepare_tx_burst(m_table, n, port, qconf);
-
- ret = rte_eth_tx_burst(port, queueid, m_table, n);
-
- core_stats_update_tx(ret);
-
- if (unlikely(ret < n)) {
- do {
- free_pkts(&m_table[ret], 1);
- } while (++ret < n);
- }
-
- return 0;
-}
-
-/*
- * Helper function to fragment and queue for TX one packet.
- */
-static inline uint32_t
-send_fragment_packet(struct lcore_conf *qconf, struct rte_mbuf *m,
- uint16_t port, uint8_t proto)
-{
- struct buffer *tbl;
- uint32_t len, n;
- int32_t rc;
-
- tbl = qconf->tx_mbufs + port;
- len = tbl->len;
-
- /* free space for new fragments */
- if (len + RTE_LIBRTE_IP_FRAG_MAX_FRAG >= RTE_DIM(tbl->m_table)) {
- send_burst(qconf, len, port);
- len = 0;
- }
-
- n = RTE_DIM(tbl->m_table) - len;
-
- if (proto == IPPROTO_IP)
- rc = rte_ipv4_fragment_packet(m, tbl->m_table + len,
- n, mtu_size, m->pool, qconf->frag.pool_indir);
- else
- rc = rte_ipv6_fragment_packet(m, tbl->m_table + len,
- n, mtu_size, m->pool, qconf->frag.pool_indir);
-
- if (rc >= 0)
- len += rc;
- else
- RTE_LOG(ERR, IPSEC,
- "%s: failed to fragment packet with size %u, "
- "error code: %d\n",
- __func__, m->pkt_len, rte_errno);
-
- free_pkts(&m, 1);
- return len;
-}
-
-/* Enqueue a single packet, and send burst if queue is filled */
-static inline int32_t
-send_single_packet(struct rte_mbuf *m, uint16_t port, uint8_t proto)
-{
- uint32_t lcore_id;
- uint16_t len;
- struct lcore_conf *qconf;
-
- lcore_id = rte_lcore_id();
-
- qconf = &lcore_conf[lcore_id];
- len = qconf->tx_mbufs[port].len;
-
- if (m->pkt_len <= mtu_size) {
- qconf->tx_mbufs[port].m_table[len] = m;
- len++;
-
- /* need to fragment the packet */
- } else if (frag_tbl_sz > 0)
- len = send_fragment_packet(qconf, m, port, proto);
- else
- free_pkts(&m, 1);
-
- /* enough pkts to be sent */
- if (unlikely(len == MAX_PKT_BURST)) {
- send_burst(qconf, MAX_PKT_BURST, port);
- len = 0;
- }
-
- qconf->tx_mbufs[port].len = len;
- return 0;
-}
-
-static inline void
-inbound_sp_sa(struct sp_ctx *sp, struct sa_ctx *sa, struct traffic_type *ip,
- uint16_t lim, struct ipsec_spd_stats *stats)
-{
- struct rte_mbuf *m;
- uint32_t i, j, res, sa_idx;
-
- if (ip->num == 0 || sp == NULL)
- return;
-
- rte_acl_classify((struct rte_acl_ctx *)sp, ip->data, ip->res,
- ip->num, DEFAULT_MAX_CATEGORIES);
-
- j = 0;
- for (i = 0; i < ip->num; i++) {
- m = ip->pkts[i];
- res = ip->res[i];
- if (res == BYPASS) {
- ip->pkts[j++] = m;
- stats->bypass++;
- continue;
- }
- if (res == DISCARD) {
- free_pkts(&m, 1);
- stats->discard++;
- continue;
- }
-
- /* Only check SPI match for processed IPSec packets */
- if (i < lim && ((m->ol_flags & RTE_MBUF_F_RX_SEC_OFFLOAD) ==
0)) {
- stats->discard++;
- free_pkts(&m, 1);
- continue;
- }
-
- sa_idx = res - 1;
- if (!inbound_sa_check(sa, m, sa_idx)) {
- stats->discard++;
- free_pkts(&m, 1);
- continue;
- }
- ip->pkts[j++] = m;
- stats->protect++;
- }
- ip->num = j;
-}
-
static void
split46_traffic(struct ipsec_traffic *trf, struct rte_mbuf *mb[], uint32_t num)
{
@@ -962,140 +542,6 @@ process_pkts_outbound_nosp(struct ipsec_ctx *ipsec_ctx,
}
}
-static inline int32_t
-get_hop_for_offload_pkt(struct rte_mbuf *pkt, int is_ipv6)
-{
- struct ipsec_mbuf_metadata *priv;
- struct ipsec_sa *sa;
-
- priv = get_priv(pkt);
-
- sa = priv->sa;
- if (unlikely(sa == NULL)) {
- RTE_LOG(ERR, IPSEC, "SA not saved in private data\n");
- goto fail;
- }
-
- if (is_ipv6)
- return sa->portid;
-
- /* else */
- return (sa->portid | RTE_LPM_LOOKUP_SUCCESS);
-
-fail:
- if (is_ipv6)
- return -1;
-
- /* else */
- return 0;
-}
-
-static inline void
-route4_pkts(struct rt_ctx *rt_ctx, struct rte_mbuf *pkts[], uint8_t nb_pkts)
-{
- uint32_t hop[MAX_PKT_BURST * 2];
- uint32_t dst_ip[MAX_PKT_BURST * 2];
- int32_t pkt_hop = 0;
- uint16_t i, offset;
- uint16_t lpm_pkts = 0;
- unsigned int lcoreid = rte_lcore_id();
-
- if (nb_pkts == 0)
- return;
-
- /* Need to do an LPM lookup for non-inline packets. Inline packets will
- * have port ID in the SA
- */
-
- for (i = 0; i < nb_pkts; i++) {
- if (!(pkts[i]->ol_flags & RTE_MBUF_F_TX_SEC_OFFLOAD)) {
- /* Security offload not enabled. So an LPM lookup is
- * required to get the hop
- */
- offset = offsetof(struct ip, ip_dst);
- dst_ip[lpm_pkts] = *rte_pktmbuf_mtod_offset(pkts[i],
- uint32_t *, offset);
- dst_ip[lpm_pkts] = rte_be_to_cpu_32(dst_ip[lpm_pkts]);
- lpm_pkts++;
- }
- }
-
- rte_lpm_lookup_bulk((struct rte_lpm *)rt_ctx, dst_ip, hop, lpm_pkts);
-
- lpm_pkts = 0;
-
- for (i = 0; i < nb_pkts; i++) {
- if (pkts[i]->ol_flags & RTE_MBUF_F_TX_SEC_OFFLOAD) {
- /* Read hop from the SA */
- pkt_hop = get_hop_for_offload_pkt(pkts[i], 0);
- } else {
- /* Need to use hop returned by lookup */
- pkt_hop = hop[lpm_pkts++];
- }
-
- if ((pkt_hop & RTE_LPM_LOOKUP_SUCCESS) == 0) {
- core_statistics[lcoreid].lpm4.miss++;
- free_pkts(&pkts[i], 1);
- continue;
- }
- send_single_packet(pkts[i], pkt_hop & 0xff, IPPROTO_IP);
- }
-}
-
-static inline void
-route6_pkts(struct rt_ctx *rt_ctx, struct rte_mbuf *pkts[], uint8_t nb_pkts)
-{
- int32_t hop[MAX_PKT_BURST * 2];
- uint8_t dst_ip[MAX_PKT_BURST * 2][16];
- uint8_t *ip6_dst;
- int32_t pkt_hop = 0;
- uint16_t i, offset;
- uint16_t lpm_pkts = 0;
- unsigned int lcoreid = rte_lcore_id();
-
- if (nb_pkts == 0)
- return;
-
- /* Need to do an LPM lookup for non-inline packets. Inline packets will
- * have port ID in the SA
- */
-
- for (i = 0; i < nb_pkts; i++) {
- if (!(pkts[i]->ol_flags & RTE_MBUF_F_TX_SEC_OFFLOAD)) {
- /* Security offload not enabled. So an LPM lookup is
- * required to get the hop
- */
- offset = offsetof(struct ip6_hdr, ip6_dst);
- ip6_dst = rte_pktmbuf_mtod_offset(pkts[i], uint8_t *,
- offset);
- memcpy(&dst_ip[lpm_pkts][0], ip6_dst, 16);
- lpm_pkts++;
- }
- }
-
- rte_lpm6_lookup_bulk_func((struct rte_lpm6 *)rt_ctx, dst_ip, hop,
- lpm_pkts);
-
- lpm_pkts = 0;
-
- for (i = 0; i < nb_pkts; i++) {
- if (pkts[i]->ol_flags & RTE_MBUF_F_TX_SEC_OFFLOAD) {
- /* Read hop from the SA */
- pkt_hop = get_hop_for_offload_pkt(pkts[i], 1);
- } else {
- /* Need to use hop returned by lookup */
- pkt_hop = hop[lpm_pkts++];
- }
-
- if (pkt_hop == -1) {
- core_statistics[lcoreid].lpm6.miss++;
- free_pkts(&pkts[i], 1);
- continue;
- }
- send_single_packet(pkts[i], pkt_hop & 0xff, IPPROTO_IPV6);
- }
-}
-
static inline void
process_pkts(struct lcore_conf *qconf, struct rte_mbuf **pkts,
uint8_t nb_pkts, uint16_t portid)
@@ -1121,21 +567,6 @@ process_pkts(struct lcore_conf *qconf, struct rte_mbuf
**pkts,
}
static inline void
-drain_tx_buffers(struct lcore_conf *qconf)
-{
- struct buffer *buf;
- uint32_t portid;
-
- for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
- buf = &qconf->tx_mbufs[portid];
- if (buf->len == 0)
- continue;
- send_burst(qconf, buf->len, portid);
- buf->len = 0;
- }
-}
-
-static inline void
drain_crypto_buffers(struct lcore_conf *qconf)
{
uint32_t i;
diff --git a/examples/ipsec-secgw/ipsec-secgw.h
b/examples/ipsec-secgw/ipsec-secgw.h
index 24f11ad..fceb835 100644
--- a/examples/ipsec-secgw/ipsec-secgw.h
+++ b/examples/ipsec-secgw/ipsec-secgw.h
@@ -6,6 +6,7 @@
#include <stdbool.h>
+#define MAX_RX_QUEUE_PER_LCORE 16
#define NB_SOCKETS 4
@@ -136,6 +137,9 @@ extern uint32_t nb_bufs_in_pool;
extern bool per_port_pool;
+extern uint32_t mtu_size;
+extern uint32_t frag_tbl_sz;
+
static inline uint8_t
is_unprotected_port(uint16_t port_id)
{
diff --git a/examples/ipsec-secgw/ipsec.h b/examples/ipsec-secgw/ipsec.h
index ccfde8e..9a4e7ea 100644
--- a/examples/ipsec-secgw/ipsec.h
+++ b/examples/ipsec-secgw/ipsec.h
@@ -9,6 +9,7 @@
#include <rte_byteorder.h>
#include <rte_crypto.h>
+#include <rte_ip_frag.h>
#include <rte_security.h>
#include <rte_flow.h>
#include <rte_ipsec.h>
@@ -37,6 +38,11 @@
#define IP6_VERSION (6)
+#define SATP_OUT_IPV4(t) \
+ ((((t) & RTE_IPSEC_SATP_MODE_MASK) == RTE_IPSEC_SATP_MODE_TRANS && \
+ (((t) & RTE_IPSEC_SATP_IPV_MASK) == RTE_IPSEC_SATP_IPV4)) || \
+ ((t) & RTE_IPSEC_SATP_MODE_MASK) == RTE_IPSEC_SATP_MODE_TUNLV4)
+
struct rte_crypto_xform;
struct ipsec_xform;
struct rte_mbuf;
@@ -260,6 +266,34 @@ struct cnt_blk {
uint32_t cnt;
} __rte_packed;
+struct lcore_rx_queue {
+ uint16_t port_id;
+ uint8_t queue_id;
+} __rte_cache_aligned;
+
+struct buffer {
+ uint16_t len;
+ struct rte_mbuf *m_table[MAX_PKT_BURST] __rte_aligned(sizeof(void *));
+};
+
+struct lcore_conf {
+ uint16_t nb_rx_queue;
+ struct lcore_rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
+ uint16_t tx_queue_id[RTE_MAX_ETHPORTS];
+ struct buffer tx_mbufs[RTE_MAX_ETHPORTS];
+ struct ipsec_ctx inbound;
+ struct ipsec_ctx outbound;
+ struct rt_ctx *rt4_ctx;
+ struct rt_ctx *rt6_ctx;
+ struct {
+ struct rte_ip_frag_tbl *tbl;
+ struct rte_mempool *pool_indir;
+ struct rte_ip_frag_death_row dr;
+ } frag;
+} __rte_cache_aligned;
+
+extern struct lcore_conf lcore_conf[RTE_MAX_LCORE];
+
/* Socket ctx */
extern struct socket_ctx socket_ctx[NB_SOCKETS];
diff --git a/examples/ipsec-secgw/ipsec_process.c
b/examples/ipsec-secgw/ipsec_process.c
index 285e9c7..089d89f 100644
--- a/examples/ipsec-secgw/ipsec_process.c
+++ b/examples/ipsec-secgw/ipsec_process.c
@@ -13,11 +13,7 @@
#include "ipsec.h"
#include "ipsec-secgw.h"
-
-#define SATP_OUT_IPV4(t) \
- ((((t) & RTE_IPSEC_SATP_MODE_MASK) == RTE_IPSEC_SATP_MODE_TRANS && \
- (((t) & RTE_IPSEC_SATP_IPV_MASK) == RTE_IPSEC_SATP_IPV4)) || \
- ((t) & RTE_IPSEC_SATP_MODE_MASK) == RTE_IPSEC_SATP_MODE_TUNLV4)
+#include "ipsec_worker.h"
/* helper routine to free bulk of crypto-ops and related packets */
static inline void
@@ -209,49 +205,6 @@ ipsec_prepare_crypto_group(struct ipsec_ctx *ctx, struct
ipsec_sa *sa,
}
/*
- * helper routine for inline and cpu(synchronous) processing
- * this is just to satisfy inbound_sa_check() and get_hop_for_offload_pkt().
- * Should be removed in future.
- */
-static inline void
-prep_process_group(void *sa, struct rte_mbuf *mb[], uint32_t cnt)
-{
- uint32_t j;
- struct ipsec_mbuf_metadata *priv;
-
- for (j = 0; j != cnt; j++) {
- priv = get_priv(mb[j]);
- priv->sa = sa;
- /* setup TSO related fields if TSO enabled*/
- if (priv->sa->mss) {
- uint32_t ptype = mb[j]->packet_type;
- /* only TCP is supported */
- if ((ptype & RTE_PTYPE_L4_MASK) == RTE_PTYPE_L4_TCP) {
- mb[j]->tso_segsz = priv->sa->mss;
- if ((IS_TUNNEL(priv->sa->flags))) {
- mb[j]->outer_l3_len = mb[j]->l3_len;
- mb[j]->outer_l2_len = mb[j]->l2_len;
- mb[j]->ol_flags |=
- RTE_MBUF_F_TX_TUNNEL_ESP;
- if (RTE_ETH_IS_IPV4_HDR(ptype))
- mb[j]->ol_flags |=
- RTE_MBUF_F_TX_OUTER_IP_CKSUM;
- }
- mb[j]->l4_len = sizeof(struct rte_tcp_hdr);
- mb[j]->ol_flags |= (RTE_MBUF_F_TX_TCP_SEG |
- RTE_MBUF_F_TX_TCP_CKSUM);
- if (RTE_ETH_IS_IPV4_HDR(ptype))
- mb[j]->ol_flags |=
- RTE_MBUF_F_TX_OUTER_IPV4;
- else
- mb[j]->ol_flags |=
- RTE_MBUF_F_TX_OUTER_IPV6;
- }
- }
- }
-}
-
-/*
* finish processing of packets successfully decrypted by an inline processor
*/
static uint32_t
diff --git a/examples/ipsec-secgw/ipsec_worker.h
b/examples/ipsec-secgw/ipsec_worker.h
index 5d85cf1..e0b0a82 100644
--- a/examples/ipsec-secgw/ipsec_worker.h
+++ b/examples/ipsec-secgw/ipsec_worker.h
@@ -4,8 +4,15 @@
#ifndef _IPSEC_WORKER_H_
#define _IPSEC_WORKER_H_
+#include <rte_acl.h>
+#include <rte_ethdev.h>
+#include <rte_lpm.h>
+#include <rte_lpm6.h>
+
#include "ipsec.h"
+/* Configure how many packets ahead to prefetch, when reading packets */
+#define PREFETCH_OFFSET 3
enum pkt_type {
PKT_TYPE_PLAIN_IPV4 = 1,
PKT_TYPE_IPSEC_IPV4,
@@ -38,4 +45,585 @@ void ipsec_poll_mode_worker(void);
int ipsec_launch_one_lcore(void *args);
+/*
+ * helper routine for inline and cpu(synchronous) processing
+ * this is just to satisfy inbound_sa_check() and get_hop_for_offload_pkt().
+ * Should be removed in future.
+ */
+static inline void
+prep_process_group(void *sa, struct rte_mbuf *mb[], uint32_t cnt)
+{
+ uint32_t j;
+ struct ipsec_mbuf_metadata *priv;
+
+ for (j = 0; j != cnt; j++) {
+ priv = get_priv(mb[j]);
+ priv->sa = sa;
+ /* setup TSO related fields if TSO enabled*/
+ if (priv->sa->mss) {
+ uint32_t ptype = mb[j]->packet_type;
+ /* only TCP is supported */
+ if ((ptype & RTE_PTYPE_L4_MASK) == RTE_PTYPE_L4_TCP) {
+ mb[j]->tso_segsz = priv->sa->mss;
+ if ((IS_TUNNEL(priv->sa->flags))) {
+ mb[j]->outer_l3_len = mb[j]->l3_len;
+ mb[j]->outer_l2_len = mb[j]->l2_len;
+ mb[j]->ol_flags |=
+ RTE_MBUF_F_TX_TUNNEL_ESP;
+ if (RTE_ETH_IS_IPV4_HDR(ptype))
+ mb[j]->ol_flags |=
+ RTE_MBUF_F_TX_OUTER_IP_CKSUM;
+ }
+ mb[j]->l4_len = sizeof(struct rte_tcp_hdr);
+ mb[j]->ol_flags |= (RTE_MBUF_F_TX_TCP_SEG |
+ RTE_MBUF_F_TX_TCP_CKSUM);
+ if (RTE_ETH_IS_IPV4_HDR(ptype))
+ mb[j]->ol_flags |=
+ RTE_MBUF_F_TX_OUTER_IPV4;
+ else
+ mb[j]->ol_flags |=
+ RTE_MBUF_F_TX_OUTER_IPV6;
+ }
+ }
+ }
+}
+
+static inline void
+adjust_ipv4_pktlen(struct rte_mbuf *m, const struct rte_ipv4_hdr *iph,
+ uint32_t l2_len)
+{
+ uint32_t plen, trim;
+
+ plen = rte_be_to_cpu_16(iph->total_length) + l2_len;
+ if (plen < m->pkt_len) {
+ trim = m->pkt_len - plen;
+ rte_pktmbuf_trim(m, trim);
+ }
+}
+
+static inline void
+adjust_ipv6_pktlen(struct rte_mbuf *m, const struct rte_ipv6_hdr *iph,
+ uint32_t l2_len)
+{
+ uint32_t plen, trim;
+
+ plen = rte_be_to_cpu_16(iph->payload_len) + sizeof(*iph) + l2_len;
+ if (plen < m->pkt_len) {
+ trim = m->pkt_len - plen;
+ rte_pktmbuf_trim(m, trim);
+ }
+}
+
+static inline void
+prepare_one_packet(struct rte_mbuf *pkt, struct ipsec_traffic *t)
+{
+ const struct rte_ether_hdr *eth;
+ const struct rte_ipv4_hdr *iph4;
+ const struct rte_ipv6_hdr *iph6;
+ const struct rte_udp_hdr *udp;
+ uint16_t ip4_hdr_len;
+ uint16_t nat_port;
+
+ eth = rte_pktmbuf_mtod(pkt, const struct rte_ether_hdr *);
+ if (eth->ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4)) {
+
+ iph4 = (const struct rte_ipv4_hdr *)rte_pktmbuf_adj(pkt,
+ RTE_ETHER_HDR_LEN);
+ adjust_ipv4_pktlen(pkt, iph4, 0);
+
+ switch (iph4->next_proto_id) {
+ case IPPROTO_ESP:
+ t->ipsec.pkts[(t->ipsec.num)++] = pkt;
+ break;
+ case IPPROTO_UDP:
+ if (app_sa_prm.udp_encap == 1) {
+ ip4_hdr_len = ((iph4->version_ihl &
+ RTE_IPV4_HDR_IHL_MASK) *
+ RTE_IPV4_IHL_MULTIPLIER);
+ udp = rte_pktmbuf_mtod_offset(pkt,
+ struct rte_udp_hdr *, ip4_hdr_len);
+ nat_port = rte_cpu_to_be_16(IPSEC_NAT_T_PORT);
+ if (udp->src_port == nat_port ||
+ udp->dst_port == nat_port){
+ t->ipsec.pkts[(t->ipsec.num)++] = pkt;
+ pkt->packet_type |=
+ MBUF_PTYPE_TUNNEL_ESP_IN_UDP;
+ break;
+ }
+ }
+ /* Fall through */
+ default:
+ t->ip4.data[t->ip4.num] = &iph4->next_proto_id;
+ t->ip4.pkts[(t->ip4.num)++] = pkt;
+ }
+ pkt->l2_len = 0;
+ pkt->l3_len = sizeof(*iph4);
+ pkt->packet_type |= RTE_PTYPE_L3_IPV4;
+ if (pkt->packet_type & RTE_PTYPE_L4_TCP)
+ pkt->l4_len = sizeof(struct rte_tcp_hdr);
+ else if (pkt->packet_type & RTE_PTYPE_L4_UDP)
+ pkt->l4_len = sizeof(struct rte_udp_hdr);
+ } else if (eth->ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV6)) {
+ int next_proto;
+ size_t l3len, ext_len;
+ uint8_t *p;
+
+ /* get protocol type */
+ iph6 = (const struct rte_ipv6_hdr *)rte_pktmbuf_adj(pkt,
+ RTE_ETHER_HDR_LEN);
+ adjust_ipv6_pktlen(pkt, iph6, 0);
+
+ next_proto = iph6->proto;
+
+ /* determine l3 header size up to ESP extension */
+ l3len = sizeof(struct ip6_hdr);
+ p = rte_pktmbuf_mtod(pkt, uint8_t *);
+ while (next_proto != IPPROTO_ESP && l3len < pkt->data_len &&
+ (next_proto = rte_ipv6_get_next_ext(p + l3len,
+ next_proto, &ext_len)) >= 0)
+ l3len += ext_len;
+
+ /* drop packet when IPv6 header exceeds first segment length */
+ if (unlikely(l3len > pkt->data_len)) {
+ free_pkts(&pkt, 1);
+ return;
+ }
+
+ switch (next_proto) {
+ case IPPROTO_ESP:
+ t->ipsec.pkts[(t->ipsec.num)++] = pkt;
+ break;
+ case IPPROTO_UDP:
+ if (app_sa_prm.udp_encap == 1) {
+ udp = rte_pktmbuf_mtod_offset(pkt,
+ struct rte_udp_hdr *, l3len);
+ nat_port = rte_cpu_to_be_16(IPSEC_NAT_T_PORT);
+ if (udp->src_port == nat_port ||
+ udp->dst_port == nat_port){
+ t->ipsec.pkts[(t->ipsec.num)++] = pkt;
+ pkt->packet_type |=
+ MBUF_PTYPE_TUNNEL_ESP_IN_UDP;
+ break;
+ }
+ }
+ /* Fall through */
+ default:
+ t->ip6.data[t->ip6.num] = &iph6->proto;
+ t->ip6.pkts[(t->ip6.num)++] = pkt;
+ }
+ pkt->l2_len = 0;
+ pkt->l3_len = l3len;
+ pkt->packet_type |= RTE_PTYPE_L3_IPV6;
+ } else {
+ /* Unknown/Unsupported type, drop the packet */
+ RTE_LOG(ERR, IPSEC, "Unsupported packet type 0x%x\n",
+ rte_be_to_cpu_16(eth->ether_type));
+ free_pkts(&pkt, 1);
+ return;
+ }
+
+ /* Check if the packet has been processed inline. For inline protocol
+ * processed packets, the metadata in the mbuf can be used to identify
+ * the security processing done on the packet. The metadata will be
+ * used to retrieve the application registered userdata associated
+ * with the security session.
+ */
+
+ if (pkt->ol_flags & RTE_MBUF_F_RX_SEC_OFFLOAD &&
+ rte_security_dynfield_is_registered()) {
+ struct ipsec_sa *sa;
+ struct ipsec_mbuf_metadata *priv;
+ struct rte_security_ctx *ctx = (struct rte_security_ctx *)
+ rte_eth_dev_get_sec_ctx(
+ pkt->port);
+
+ /* Retrieve the userdata registered. Here, the userdata
+ * registered is the SA pointer.
+ */
+ sa = (struct ipsec_sa *)rte_security_get_userdata(ctx,
+ *rte_security_dynfield(pkt));
+ if (sa == NULL) {
+ /* userdata could not be retrieved */
+ return;
+ }
+
+ /* Save SA as priv member in mbuf. This will be used in the
+ * IPsec selector(SP-SA) check.
+ */
+
+ priv = get_priv(pkt);
+ priv->sa = sa;
+ }
+}
+
+static inline void
+prepare_traffic(struct rte_mbuf **pkts, struct ipsec_traffic *t,
+ uint16_t nb_pkts)
+{
+ int32_t i;
+
+ t->ipsec.num = 0;
+ t->ip4.num = 0;
+ t->ip6.num = 0;
+
+ for (i = 0; i < (nb_pkts - PREFETCH_OFFSET); i++) {
+ rte_prefetch0(rte_pktmbuf_mtod(pkts[i + PREFETCH_OFFSET],
+ void *));
+ prepare_one_packet(pkts[i], t);
+ }
+ /* Process left packets */
+ for (; i < nb_pkts; i++)
+ prepare_one_packet(pkts[i], t);
+}
+
+static inline void
+prepare_tx_pkt(struct rte_mbuf *pkt, uint16_t port,
+ const struct lcore_conf *qconf)
+{
+ struct ip *ip;
+ struct rte_ether_hdr *ethhdr;
+
+ ip = rte_pktmbuf_mtod(pkt, struct ip *);
+
+ ethhdr = (struct rte_ether_hdr *)
+ rte_pktmbuf_prepend(pkt, RTE_ETHER_HDR_LEN);
+
+ if (ip->ip_v == IPVERSION) {
+ pkt->ol_flags |= qconf->outbound.ipv4_offloads;
+ pkt->l3_len = sizeof(struct ip);
+ pkt->l2_len = RTE_ETHER_HDR_LEN;
+
+ ip->ip_sum = 0;
+
+ /* calculate IPv4 cksum in SW */
+ if ((pkt->ol_flags & RTE_MBUF_F_TX_IP_CKSUM) == 0)
+ ip->ip_sum = rte_ipv4_cksum((struct rte_ipv4_hdr *)ip);
+
+ ethhdr->ether_type = rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4);
+ } else {
+ pkt->ol_flags |= qconf->outbound.ipv6_offloads;
+ pkt->l3_len = sizeof(struct ip6_hdr);
+ pkt->l2_len = RTE_ETHER_HDR_LEN;
+
+ ethhdr->ether_type = rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV6);
+ }
+
+ memcpy(ðhdr->src_addr, ðaddr_tbl[port].src,
+ sizeof(struct rte_ether_addr));
+ memcpy(ðhdr->dst_addr, ðaddr_tbl[port].dst,
+ sizeof(struct rte_ether_addr));
+}
+
+static inline void
+prepare_tx_burst(struct rte_mbuf *pkts[], uint16_t nb_pkts, uint16_t port,
+ const struct lcore_conf *qconf)
+{
+ int32_t i;
+ const int32_t prefetch_offset = 2;
+
+ for (i = 0; i < (nb_pkts - prefetch_offset); i++) {
+ rte_mbuf_prefetch_part2(pkts[i + prefetch_offset]);
+ prepare_tx_pkt(pkts[i], port, qconf);
+ }
+ /* Process left packets */
+ for (; i < nb_pkts; i++)
+ prepare_tx_pkt(pkts[i], port, qconf);
+}
+
+/* Send burst of packets on an output interface */
+static inline int32_t
+send_burst(struct lcore_conf *qconf, uint16_t n, uint16_t port)
+{
+ struct rte_mbuf **m_table;
+ int32_t ret;
+ uint16_t queueid;
+
+ queueid = qconf->tx_queue_id[port];
+ m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table;
+
+ prepare_tx_burst(m_table, n, port, qconf);
+
+ ret = rte_eth_tx_burst(port, queueid, m_table, n);
+
+ core_stats_update_tx(ret);
+
+ if (unlikely(ret < n)) {
+ do {
+ free_pkts(&m_table[ret], 1);
+ } while (++ret < n);
+ }
+
+ return 0;
+}
+
+/*
+ * Helper function to fragment and queue for TX one packet.
+ */
+static inline uint32_t
+send_fragment_packet(struct lcore_conf *qconf, struct rte_mbuf *m,
+ uint16_t port, uint8_t proto)
+{
+ struct buffer *tbl;
+ uint32_t len, n;
+ int32_t rc;
+
+ tbl = qconf->tx_mbufs + port;
+ len = tbl->len;
+
+ /* free space for new fragments */
+ if (len + RTE_LIBRTE_IP_FRAG_MAX_FRAG >= RTE_DIM(tbl->m_table)) {
+ send_burst(qconf, len, port);
+ len = 0;
+ }
+
+ n = RTE_DIM(tbl->m_table) - len;
+
+ if (proto == IPPROTO_IP)
+ rc = rte_ipv4_fragment_packet(m, tbl->m_table + len,
+ n, mtu_size, m->pool, qconf->frag.pool_indir);
+ else
+ rc = rte_ipv6_fragment_packet(m, tbl->m_table + len,
+ n, mtu_size, m->pool, qconf->frag.pool_indir);
+
+ if (rc >= 0)
+ len += rc;
+ else
+ RTE_LOG(ERR, IPSEC,
+ "%s: failed to fragment packet with size %u, "
+ "error code: %d\n",
+ __func__, m->pkt_len, rte_errno);
+
+ free_pkts(&m, 1);
+ return len;
+}
+
+/* Enqueue a single packet, and send burst if queue is filled */
+static inline int32_t
+send_single_packet(struct rte_mbuf *m, uint16_t port, uint8_t proto)
+{
+ uint32_t lcore_id;
+ uint16_t len;
+ struct lcore_conf *qconf;
+
+ lcore_id = rte_lcore_id();
+
+ qconf = &lcore_conf[lcore_id];
+ len = qconf->tx_mbufs[port].len;
+
+ if (m->pkt_len <= mtu_size) {
+ qconf->tx_mbufs[port].m_table[len] = m;
+ len++;
+
+ /* need to fragment the packet */
+ } else if (frag_tbl_sz > 0)
+ len = send_fragment_packet(qconf, m, port, proto);
+ else
+ free_pkts(&m, 1);
+
+ /* enough pkts to be sent */
+ if (unlikely(len == MAX_PKT_BURST)) {
+ send_burst(qconf, MAX_PKT_BURST, port);
+ len = 0;
+ }
+
+ qconf->tx_mbufs[port].len = len;
+ return 0;
+}
+
+static inline void
+inbound_sp_sa(struct sp_ctx *sp, struct sa_ctx *sa, struct traffic_type *ip,
+ uint16_t lim, struct ipsec_spd_stats *stats)
+{
+ struct rte_mbuf *m;
+ uint32_t i, j, res, sa_idx;
+
+ if (ip->num == 0 || sp == NULL)
+ return;
+
+ rte_acl_classify((struct rte_acl_ctx *)sp, ip->data, ip->res,
+ ip->num, DEFAULT_MAX_CATEGORIES);
+
+ j = 0;
+ for (i = 0; i < ip->num; i++) {
+ m = ip->pkts[i];
+ res = ip->res[i];
+ if (res == BYPASS) {
+ ip->pkts[j++] = m;
+ stats->bypass++;
+ continue;
+ }
+ if (res == DISCARD) {
+ free_pkts(&m, 1);
+ stats->discard++;
+ continue;
+ }
+
+ /* Only check SPI match for processed IPSec packets */
+ if (i < lim && ((m->ol_flags & RTE_MBUF_F_RX_SEC_OFFLOAD) ==
0)) {
+ stats->discard++;
+ free_pkts(&m, 1);
+ continue;
+ }
+
+ sa_idx = res - 1;
+ if (!inbound_sa_check(sa, m, sa_idx)) {
+ stats->discard++;
+ free_pkts(&m, 1);
+ continue;
+ }
+ ip->pkts[j++] = m;
+ stats->protect++;
+ }
+ ip->num = j;
+}
+
+static inline int32_t
+get_hop_for_offload_pkt(struct rte_mbuf *pkt, int is_ipv6)
+{
+ struct ipsec_mbuf_metadata *priv;
+ struct ipsec_sa *sa;
+
+ priv = get_priv(pkt);
+
+ sa = priv->sa;
+ if (unlikely(sa == NULL)) {
+ RTE_LOG(ERR, IPSEC, "SA not saved in private data\n");
+ goto fail;
+ }
+
+ if (is_ipv6)
+ return sa->portid;
+
+ /* else */
+ return (sa->portid | RTE_LPM_LOOKUP_SUCCESS);
+
+fail:
+ if (is_ipv6)
+ return -1;
+
+ /* else */
+ return 0;
+}
+
+static inline void
+route4_pkts(struct rt_ctx *rt_ctx, struct rte_mbuf *pkts[], uint8_t nb_pkts)
+{
+ uint32_t hop[MAX_PKT_BURST * 2];
+ uint32_t dst_ip[MAX_PKT_BURST * 2];
+ int32_t pkt_hop = 0;
+ uint16_t i, offset;
+ uint16_t lpm_pkts = 0;
+ unsigned int lcoreid = rte_lcore_id();
+
+ if (nb_pkts == 0)
+ return;
+
+ /* Need to do an LPM lookup for non-inline packets. Inline packets will
+ * have port ID in the SA
+ */
+
+ for (i = 0; i < nb_pkts; i++) {
+ if (!(pkts[i]->ol_flags & RTE_MBUF_F_TX_SEC_OFFLOAD)) {
+ /* Security offload not enabled. So an LPM lookup is
+ * required to get the hop
+ */
+ offset = offsetof(struct ip, ip_dst);
+ dst_ip[lpm_pkts] = *rte_pktmbuf_mtod_offset(pkts[i],
+ uint32_t *, offset);
+ dst_ip[lpm_pkts] = rte_be_to_cpu_32(dst_ip[lpm_pkts]);
+ lpm_pkts++;
+ }
+ }
+
+ rte_lpm_lookup_bulk((struct rte_lpm *)rt_ctx, dst_ip, hop, lpm_pkts);
+
+ lpm_pkts = 0;
+
+ for (i = 0; i < nb_pkts; i++) {
+ if (pkts[i]->ol_flags & RTE_MBUF_F_TX_SEC_OFFLOAD) {
+ /* Read hop from the SA */
+ pkt_hop = get_hop_for_offload_pkt(pkts[i], 0);
+ } else {
+ /* Need to use hop returned by lookup */
+ pkt_hop = hop[lpm_pkts++];
+ }
+
+ if ((pkt_hop & RTE_LPM_LOOKUP_SUCCESS) == 0) {
+ core_statistics[lcoreid].lpm4.miss++;
+ free_pkts(&pkts[i], 1);
+ continue;
+ }
+ send_single_packet(pkts[i], pkt_hop & 0xff, IPPROTO_IP);
+ }
+}
+
+static inline void
+route6_pkts(struct rt_ctx *rt_ctx, struct rte_mbuf *pkts[], uint8_t nb_pkts)
+{
+ int32_t hop[MAX_PKT_BURST * 2];
+ uint8_t dst_ip[MAX_PKT_BURST * 2][16];
+ uint8_t *ip6_dst;
+ int32_t pkt_hop = 0;
+ uint16_t i, offset;
+ uint16_t lpm_pkts = 0;
+ unsigned int lcoreid = rte_lcore_id();
+
+ if (nb_pkts == 0)
+ return;
+
+ /* Need to do an LPM lookup for non-inline packets. Inline packets will
+ * have port ID in the SA
+ */
+
+ for (i = 0; i < nb_pkts; i++) {
+ if (!(pkts[i]->ol_flags & RTE_MBUF_F_TX_SEC_OFFLOAD)) {
+ /* Security offload not enabled. So an LPM lookup is
+ * required to get the hop
+ */
+ offset = offsetof(struct ip6_hdr, ip6_dst);
+ ip6_dst = rte_pktmbuf_mtod_offset(pkts[i], uint8_t *,
+ offset);
+ memcpy(&dst_ip[lpm_pkts][0], ip6_dst, 16);
+ lpm_pkts++;
+ }
+ }
+
+ rte_lpm6_lookup_bulk_func((struct rte_lpm6 *)rt_ctx, dst_ip, hop,
+ lpm_pkts);
+
+ lpm_pkts = 0;
+
+ for (i = 0; i < nb_pkts; i++) {
+ if (pkts[i]->ol_flags & RTE_MBUF_F_TX_SEC_OFFLOAD) {
+ /* Read hop from the SA */
+ pkt_hop = get_hop_for_offload_pkt(pkts[i], 1);
+ } else {
+ /* Need to use hop returned by lookup */
+ pkt_hop = hop[lpm_pkts++];
+ }
+
+ if (pkt_hop == -1) {
+ core_statistics[lcoreid].lpm6.miss++;
+ free_pkts(&pkts[i], 1);
+ continue;
+ }
+ send_single_packet(pkts[i], pkt_hop & 0xff, IPPROTO_IPV6);
+ }
+}
+
+static inline void
+drain_tx_buffers(struct lcore_conf *qconf)
+{
+ struct buffer *buf;
+ uint32_t portid;
+
+ for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
+ buf = &qconf->tx_mbufs[portid];
+ if (buf->len == 0)
+ continue;
+ send_burst(qconf, buf->len, portid);
+ buf->len = 0;
+ }
+}
+
#endif /* _IPSEC_WORKER_H_ */
--
2.8.4
