--- /dev/null
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2016 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __L3FWD_EM_HLM_SSE_H__
+#define __L3FWD_EM_HLM_SSE_H__
+
+#include "l3fwd_sse.h"
+
+static inline __attribute__((always_inline)) void
+em_get_dst_port_ipv4x8(struct lcore_conf *qconf, struct rte_mbuf *m[8],
+ uint8_t portid, uint16_t dst_port[8])
+{
+ int32_t ret[8];
+ union ipv4_5tuple_host key[8];
+ __m128i data[8];
+
+ data[0] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[0], __m128i *,
+ sizeof(struct ether_hdr) +
+ offsetof(struct ipv4_hdr, time_to_live)));
+ data[1] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[1], __m128i *,
+ sizeof(struct ether_hdr) +
+ offsetof(struct ipv4_hdr, time_to_live)));
+ data[2] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[2], __m128i *,
+ sizeof(struct ether_hdr) +
+ offsetof(struct ipv4_hdr, time_to_live)));
+ data[3] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[3], __m128i *,
+ sizeof(struct ether_hdr) +
+ offsetof(struct ipv4_hdr, time_to_live)));
+ data[4] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[4], __m128i *,
+ sizeof(struct ether_hdr) +
+ offsetof(struct ipv4_hdr, time_to_live)));
+ data[5] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[5], __m128i *,
+ sizeof(struct ether_hdr) +
+ offsetof(struct ipv4_hdr, time_to_live)));
+ data[6] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[6], __m128i *,
+ sizeof(struct ether_hdr) +
+ offsetof(struct ipv4_hdr, time_to_live)));
+ data[7] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[7], __m128i *,
+ sizeof(struct ether_hdr) +
+ offsetof(struct ipv4_hdr, time_to_live)));
+
+ key[0].xmm = _mm_and_si128(data[0], mask0.x);
+ key[1].xmm = _mm_and_si128(data[1], mask0.x);
+ key[2].xmm = _mm_and_si128(data[2], mask0.x);
+ key[3].xmm = _mm_and_si128(data[3], mask0.x);
+ key[4].xmm = _mm_and_si128(data[4], mask0.x);
+ key[5].xmm = _mm_and_si128(data[5], mask0.x);
+ key[6].xmm = _mm_and_si128(data[6], mask0.x);
+ key[7].xmm = _mm_and_si128(data[7], mask0.x);
+
+ const void *key_array[8] = {&key[0], &key[1], &key[2], &key[3],
+ &key[4], &key[5], &key[6], &key[7]};
+
+ rte_hash_lookup_multi(qconf->ipv4_lookup_struct, &key_array[0], 8, ret);
+
+ dst_port[0] = (uint8_t) ((ret[0] < 0) ?
+ portid : ipv4_l3fwd_out_if[ret[0]]);
+ dst_port[1] = (uint8_t) ((ret[1] < 0) ?
+ portid : ipv4_l3fwd_out_if[ret[1]]);
+ dst_port[2] = (uint8_t) ((ret[2] < 0) ?
+ portid : ipv4_l3fwd_out_if[ret[2]]);
+ dst_port[3] = (uint8_t) ((ret[3] < 0) ?
+ portid : ipv4_l3fwd_out_if[ret[3]]);
+ dst_port[4] = (uint8_t) ((ret[4] < 0) ?
+ portid : ipv4_l3fwd_out_if[ret[4]]);
+ dst_port[5] = (uint8_t) ((ret[5] < 0) ?
+ portid : ipv4_l3fwd_out_if[ret[5]]);
+ dst_port[6] = (uint8_t) ((ret[6] < 0) ?
+ portid : ipv4_l3fwd_out_if[ret[6]]);
+ dst_port[7] = (uint8_t) ((ret[7] < 0) ?
+ portid : ipv4_l3fwd_out_if[ret[7]]);
+
+ if (dst_port[0] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[0]) == 0)
+ dst_port[0] = portid;
+
+ if (dst_port[1] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[1]) == 0)
+ dst_port[1] = portid;
+
+ if (dst_port[2] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[2]) == 0)
+ dst_port[2] = portid;
+
+ if (dst_port[3] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[3]) == 0)
+ dst_port[3] = portid;
+
+ if (dst_port[4] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[4]) == 0)
+ dst_port[4] = portid;
+
+ if (dst_port[5] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[5]) == 0)
+ dst_port[5] = portid;
+
+ if (dst_port[6] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[6]) == 0)
+ dst_port[6] = portid;
+
+ if (dst_port[7] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[7]) == 0)
+ dst_port[7] = portid;
+
+}
+
+static inline void
+get_ipv6_5tuple(struct rte_mbuf *m0, __m128i mask0,
+ __m128i mask1, union ipv6_5tuple_host *key)
+{
+ __m128i tmpdata0 = _mm_loadu_si128(
+ rte_pktmbuf_mtod_offset(m0, __m128i *,
+ sizeof(struct ether_hdr) +
+ offsetof(struct ipv6_hdr, payload_len)));
+
+ __m128i tmpdata1 = _mm_loadu_si128(
+ rte_pktmbuf_mtod_offset(m0, __m128i *,
+ sizeof(struct ether_hdr) +
+ offsetof(struct ipv6_hdr, payload_len) +
+ sizeof(__m128i)));
+
+ __m128i tmpdata2 = _mm_loadu_si128(
+ rte_pktmbuf_mtod_offset(m0, __m128i *,
+ sizeof(struct ether_hdr) +
+ offsetof(struct ipv6_hdr, payload_len) +
+ sizeof(__m128i) + sizeof(__m128i)));
+
+ key->xmm[0] = _mm_and_si128(tmpdata0, mask0);
+ key->xmm[1] = tmpdata1;
+ key->xmm[2] = _mm_and_si128(tmpdata2, mask1);
+}
+
+static inline __attribute__((always_inline)) void
+em_get_dst_port_ipv6x8(struct lcore_conf *qconf, struct rte_mbuf *m[8],
+ uint8_t portid, uint16_t dst_port[8])
+{
+ int32_t ret[8];
+ union ipv6_5tuple_host key[8];
+
+ get_ipv6_5tuple(m[0], mask1.x, mask2.x, &key[0]);
+ get_ipv6_5tuple(m[1], mask1.x, mask2.x, &key[1]);
+ get_ipv6_5tuple(m[2], mask1.x, mask2.x, &key[2]);
+ get_ipv6_5tuple(m[3], mask1.x, mask2.x, &key[3]);
+ get_ipv6_5tuple(m[4], mask1.x, mask2.x, &key[4]);
+ get_ipv6_5tuple(m[5], mask1.x, mask2.x, &key[5]);
+ get_ipv6_5tuple(m[6], mask1.x, mask2.x, &key[6]);
+ get_ipv6_5tuple(m[7], mask1.x, mask2.x, &key[7]);
+
+ const void *key_array[8] = {&key[0], &key[1], &key[2], &key[3],
+ &key[4], &key[5], &key[6], &key[7]};
+
+ rte_hash_lookup_multi(qconf->ipv6_lookup_struct, &key_array[0], 8, ret);
+
+ dst_port[0] = (uint8_t) ((ret[0] < 0) ?
+ portid : ipv6_l3fwd_out_if[ret[0]]);
+ dst_port[1] = (uint8_t) ((ret[1] < 0) ?
+ portid : ipv6_l3fwd_out_if[ret[1]]);
+ dst_port[2] = (uint8_t) ((ret[2] < 0) ?
+ portid : ipv6_l3fwd_out_if[ret[2]]);
+ dst_port[3] = (uint8_t) ((ret[3] < 0) ?
+ portid : ipv6_l3fwd_out_if[ret[3]]);
+ dst_port[4] = (uint8_t) ((ret[4] < 0) ?
+ portid : ipv6_l3fwd_out_if[ret[4]]);
+ dst_port[5] = (uint8_t) ((ret[5] < 0) ?
+ portid : ipv6_l3fwd_out_if[ret[5]]);
+ dst_port[6] = (uint8_t) ((ret[6] < 0) ?
+ portid : ipv6_l3fwd_out_if[ret[6]]);
+ dst_port[7] = (uint8_t) ((ret[7] < 0) ?
+ portid : ipv6_l3fwd_out_if[ret[7]]);
+
+ if (dst_port[0] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[0]) == 0)
+ dst_port[0] = portid;
+
+ if (dst_port[1] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[1]) == 0)
+ dst_port[1] = portid;
+
+ if (dst_port[2] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[2]) == 0)
+ dst_port[2] = portid;
+
+ if (dst_port[3] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[3]) == 0)
+ dst_port[3] = portid;
+
+ if (dst_port[4] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[4]) == 0)
+ dst_port[4] = portid;
+
+ if (dst_port[5] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[5]) == 0)
+ dst_port[5] = portid;
+
+ if (dst_port[6] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[6]) == 0)
+ dst_port[6] = portid;
+
+ if (dst_port[7] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[7]) == 0)
+ dst_port[7] = portid;
+
+}
+
+static inline __attribute__((always_inline)) uint16_t
+em_get_dst_port(const struct lcore_conf *qconf, struct rte_mbuf *pkt,
+ uint8_t portid)
+{
+ uint8_t next_hop;
+ struct ipv4_hdr *ipv4_hdr;
+ struct ipv6_hdr *ipv6_hdr;
+ uint32_t tcp_or_udp;
+ uint32_t l3_ptypes;
+
+ tcp_or_udp = pkt->packet_type & (RTE_PTYPE_L4_TCP | RTE_PTYPE_L4_UDP);
+ l3_ptypes = pkt->packet_type & RTE_PTYPE_L3_MASK;
+
+ if (tcp_or_udp && (l3_ptypes == RTE_PTYPE_L3_IPV4)) {
+
+ /* Handle IPv4 headers.*/
+ ipv4_hdr = rte_pktmbuf_mtod_offset(pkt, struct ipv4_hdr *,
+ sizeof(struct ether_hdr));
+
+ next_hop = em_get_ipv4_dst_port(ipv4_hdr, portid,
+ qconf->ipv4_lookup_struct);
+
+ if (next_hop >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << next_hop) == 0)
+ next_hop = portid;
+
+ return next_hop;
+
+ } else if (tcp_or_udp && (l3_ptypes == RTE_PTYPE_L3_IPV6)) {
+
+ /* Handle IPv6 headers.*/
+ ipv6_hdr = rte_pktmbuf_mtod_offset(pkt, struct ipv6_hdr *,
+ sizeof(struct ether_hdr));
+
+ next_hop = em_get_ipv6_dst_port(ipv6_hdr, portid,
+ qconf->ipv6_lookup_struct);
+
+ if (next_hop >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << next_hop) == 0)
+ next_hop = portid;
+
+ return next_hop;
+
+ }
+
+ return portid;
+}
+
+/*
+ * Buffer optimized handling of packets, invoked
+ * from main_loop.
+ */
+static inline void
+l3fwd_em_send_packets(int nb_rx, struct rte_mbuf **pkts_burst,
+ uint8_t portid, struct lcore_conf *qconf)
+{
+ int32_t j;
+ uint16_t dst_port[MAX_PKT_BURST];
+
+ /*
+ * Send nb_rx - nb_rx%8 packets
+ * in groups of 8.
+ */
+ int32_t n = RTE_ALIGN_FLOOR(nb_rx, 8);
+
+ for (j = 0; j < n; j += 8) {
+
+ uint32_t pkt_type =
+ pkts_burst[j]->packet_type &
+ pkts_burst[j+1]->packet_type &
+ pkts_burst[j+2]->packet_type &
+ pkts_burst[j+3]->packet_type &
+ pkts_burst[j+4]->packet_type &
+ pkts_burst[j+5]->packet_type &
+ pkts_burst[j+6]->packet_type &
+ pkts_burst[j+7]->packet_type;
+
+ uint32_t l3_type = pkt_type & RTE_PTYPE_L3_MASK;
+ uint32_t tcp_or_udp = pkt_type &
+ (RTE_PTYPE_L4_TCP | RTE_PTYPE_L4_UDP);
+
+ if (tcp_or_udp && (l3_type == RTE_PTYPE_L3_IPV4)) {
+
+ em_get_dst_port_ipv4x8(qconf, &pkts_burst[j], portid, &dst_port[j]);
+
+ } else if (tcp_or_udp && (l3_type == RTE_PTYPE_L3_IPV6)) {
+
+ em_get_dst_port_ipv6x8(qconf, &pkts_burst[j], portid, &dst_port[j]);
+
+ } else {
+ dst_port[j] = em_get_dst_port(qconf, pkts_burst[j], portid);
+ dst_port[j+1] = em_get_dst_port(qconf, pkts_burst[j+1], portid);
+ dst_port[j+2] = em_get_dst_port(qconf, pkts_burst[j+2], portid);
+ dst_port[j+3] = em_get_dst_port(qconf, pkts_burst[j+3], portid);
+ dst_port[j+4] = em_get_dst_port(qconf, pkts_burst[j+4], portid);
+ dst_port[j+5] = em_get_dst_port(qconf, pkts_burst[j+5], portid);
+ dst_port[j+6] = em_get_dst_port(qconf, pkts_burst[j+6], portid);
+ dst_port[j+7] = em_get_dst_port(qconf, pkts_burst[j+7], portid);
+ }
+ }
+
+ for (; j < nb_rx; j++)
+ dst_port[j] = em_get_dst_port(qconf, pkts_burst[j], portid);
+
+ send_packets_multi(qconf, pkts_burst, dst_port, nb_rx);
+
+}
+#endif /* __L3FWD_EM_SSE_HLM_H__ */
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