Imported Upstream version 16.04

Change-Id: I77eadcd8538a9122e4773cbe55b24033dc451757
Signed-off-by: C.J. Collier <cjcollier@linuxfoundation.org>

1 files changed, 342 insertions, 0 deletions

diff --git a/examples/l3fwd/l3fwd_em_hlm_sse.h b/examples/l3fwd/l3fwd_em_hlm_sse.h
new file mode 100644
index 00000000..5001c724
--- /dev/null
+++ b/examples/l3fwd/l3fwd_em_hlm_sse.h
@@ -0,0 +1,342 @@
+/*-
+ *   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__ */