-/*-
- * 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.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2016 Intel Corporation
*/
#ifndef __L3FWD_EM_HLM_SSE_H__
#define __L3FWD_EM_HLM_SSE_H__
-/**
- * @file
- * This is an optional implementation of packet classification in Exact-Match
- * path using rte_hash_lookup_multi method from previous implementation.
- * While sequential classification seems to be faster, it's disabled by default
- * and can be enabled with HASH_LOOKUP_MULTI global define in compilation time.
- */
-
#include "l3fwd_sse.h"
-static inline void
-em_get_dst_port_ipv4x8(struct lcore_conf *qconf, struct rte_mbuf *m[8],
- uint8_t portid, uint32_t dst_port[8])
+static __rte_always_inline void
+get_ipv4_5tuple(struct rte_mbuf *m0, __m128i mask0,
+ union ipv4_5tuple_host *key)
{
- 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 *,
+ __m128i tmpdata0 = _mm_loadu_si128(
+ rte_pktmbuf_mtod_offset(m0, __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;
-
+ key->xmm = _mm_and_si128(tmpdata0, mask0);
}
static inline void
key->xmm[1] = tmpdata1;
key->xmm[2] = _mm_and_si128(tmpdata2, mask1);
}
-
-static inline void
-em_get_dst_port_ipv6x8(struct lcore_conf *qconf, struct rte_mbuf *m[8],
- uint8_t portid, uint32_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;
-
- if (RTE_ETH_IS_IPV4_HDR(pkt->packet_type)) {
-
- /* 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 (RTE_ETH_IS_IPV6_HDR(pkt->packet_type)) {
-
- /* 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;
- uint32_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;
-
- if (pkt_type & RTE_PTYPE_L3_IPV4) {
-
- em_get_dst_port_ipv4x8(qconf, &pkts_burst[j], portid, &dst_port[j]);
-
- } else if (pkt_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], portid);
- dst_port[j+2] = em_get_dst_port(qconf, pkts_burst[j], portid);
- dst_port[j+3] = em_get_dst_port(qconf, pkts_burst[j], portid);
- dst_port[j+4] = em_get_dst_port(qconf, pkts_burst[j], portid);
- dst_port[j+5] = em_get_dst_port(qconf, pkts_burst[j], portid);
- dst_port[j+6] = em_get_dst_port(qconf, pkts_burst[j], portid);
- dst_port[j+7] = em_get_dst_port(qconf, pkts_burst[j], portid);
- }
- }
-
- for (; j < n; 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__ */