--- /dev/null
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2016 Intel Corporation. All rights reserved.
+ * Copyright(c) 2017, Linaro Limited
+ * 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_H__
+#define __L3FWD_EM_HLM_H__
+
+#if defined RTE_ARCH_X86
+#include "l3fwd_sse.h"
+#include "l3fwd_em_hlm_sse.h"
+#elif defined RTE_MACHINE_CPUFLAG_NEON
+#include "l3fwd_neon.h"
+#include "l3fwd_em_hlm_neon.h"
+#endif
+
+#ifdef RTE_ARCH_ARM64
+#define EM_HASH_LOOKUP_COUNT 16
+#else
+#define EM_HASH_LOOKUP_COUNT 8
+#endif
+
+
+static __rte_always_inline void
+em_get_dst_port_ipv4xN(struct lcore_conf *qconf, struct rte_mbuf *m[],
+ uint8_t portid, uint16_t dst_port[])
+{
+ int i;
+ int32_t ret[EM_HASH_LOOKUP_COUNT];
+ union ipv4_5tuple_host key[EM_HASH_LOOKUP_COUNT];
+ const void *key_array[EM_HASH_LOOKUP_COUNT];
+
+ for (i = 0; i < EM_HASH_LOOKUP_COUNT; i++) {
+ get_ipv4_5tuple(m[i], mask0.x, &key[i]);
+ key_array[i] = &key[i];
+ }
+
+ rte_hash_lookup_bulk(qconf->ipv4_lookup_struct, &key_array[0],
+ EM_HASH_LOOKUP_COUNT, ret);
+
+ for (i = 0; i < EM_HASH_LOOKUP_COUNT; i++) {
+ dst_port[i] = (uint8_t) ((ret[i] < 0) ?
+ portid : ipv4_l3fwd_out_if[ret[i]]);
+
+ if (dst_port[i] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[i]) == 0)
+ dst_port[i] = portid;
+ }
+}
+
+static __rte_always_inline void
+em_get_dst_port_ipv6xN(struct lcore_conf *qconf, struct rte_mbuf *m[],
+ uint8_t portid, uint16_t dst_port[])
+{
+ int i;
+ int32_t ret[EM_HASH_LOOKUP_COUNT];
+ union ipv6_5tuple_host key[EM_HASH_LOOKUP_COUNT];
+ const void *key_array[EM_HASH_LOOKUP_COUNT];
+
+ for (i = 0; i < EM_HASH_LOOKUP_COUNT; i++) {
+ get_ipv6_5tuple(m[i], mask1.x, mask2.x, &key[i]);
+ key_array[i] = &key[i];
+ }
+
+ rte_hash_lookup_bulk(qconf->ipv6_lookup_struct, &key_array[0],
+ EM_HASH_LOOKUP_COUNT, ret);
+
+ for (i = 0; i < EM_HASH_LOOKUP_COUNT; i++) {
+ dst_port[i] = (uint8_t) ((ret[i] < 0) ?
+ portid : ipv6_l3fwd_out_if[ret[i]]);
+
+ if (dst_port[i] >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port[i]) == 0)
+ dst_port[i] = portid;
+ }
+}
+
+static __rte_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 i, j, pos;
+ uint16_t dst_port[MAX_PKT_BURST];
+
+ /*
+ * Send nb_rx - nb_rx % EM_HASH_LOOKUP_COUNT packets
+ * in groups of EM_HASH_LOOKUP_COUNT.
+ */
+ int32_t n = RTE_ALIGN_FLOOR(nb_rx, EM_HASH_LOOKUP_COUNT);
+
+ for (j = 0; j < EM_HASH_LOOKUP_COUNT && j < nb_rx; j++) {
+ rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[j],
+ struct ether_hdr *) + 1);
+ }
+
+ for (j = 0; j < n; j += EM_HASH_LOOKUP_COUNT) {
+
+ uint32_t pkt_type = RTE_PTYPE_L3_MASK |
+ RTE_PTYPE_L4_TCP | RTE_PTYPE_L4_UDP;
+ uint32_t l3_type, tcp_or_udp;
+
+ for (i = 0; i < EM_HASH_LOOKUP_COUNT; i++)
+ pkt_type &= pkts_burst[j + i]->packet_type;
+
+ l3_type = pkt_type & RTE_PTYPE_L3_MASK;
+ tcp_or_udp = pkt_type & (RTE_PTYPE_L4_TCP | RTE_PTYPE_L4_UDP);
+
+ for (i = 0, pos = j + EM_HASH_LOOKUP_COUNT;
+ i < EM_HASH_LOOKUP_COUNT && pos < nb_rx; i++, pos++) {
+ rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[pos],
+ struct ether_hdr *) + 1);
+ }
+
+ if (tcp_or_udp && (l3_type == RTE_PTYPE_L3_IPV4)) {
+
+ em_get_dst_port_ipv4xN(qconf, &pkts_burst[j], portid,
+ &dst_port[j]);
+
+ } else if (tcp_or_udp && (l3_type == RTE_PTYPE_L3_IPV6)) {
+
+ em_get_dst_port_ipv6xN(qconf, &pkts_burst[j], portid,
+ &dst_port[j]);
+
+ } else {
+ for (i = 0; i < EM_HASH_LOOKUP_COUNT; i++)
+ dst_port[j + i] = em_get_dst_port(qconf,
+ pkts_burst[j + i], 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_HLM_H__ */
Code Review / deb_dpdk.git / blobdiff