ceph/src/seastar/dpdk/examples/l3fwd/l3fwd_em_hlm_sse.h

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2016 Intel Corporation. All rights reserved.
   5  *   All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of Intel Corporation nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #ifndef __L3FWD_EM_HLM_SSE_H__
  35 #define __L3FWD_EM_HLM_SSE_H__
  36
  37 #include "l3fwd_sse.h"
  38
  39 static inline __attribute__((always_inline)) void
  40 em_get_dst_port_ipv4x8(struct lcore_conf *qconf, struct rte_mbuf *m[8],
  41                 uint8_t portid, uint16_t dst_port[8])
  42 {
  43         int32_t ret[8];
  44         union ipv4_5tuple_host key[8];
  45         __m128i data[8];
  46
  47         data[0] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[0], __m128i *,
  48                                 sizeof(struct ether_hdr) +
  49                                 offsetof(struct ipv4_hdr, time_to_live)));
  50         data[1] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[1], __m128i *,
  51                                 sizeof(struct ether_hdr) +
  52                                 offsetof(struct ipv4_hdr, time_to_live)));
  53         data[2] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[2], __m128i *,
  54                                 sizeof(struct ether_hdr) +
  55                                 offsetof(struct ipv4_hdr, time_to_live)));
  56         data[3] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[3], __m128i *,
  57                                 sizeof(struct ether_hdr) +
  58                                 offsetof(struct ipv4_hdr, time_to_live)));
  59         data[4] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[4], __m128i *,
  60                                 sizeof(struct ether_hdr) +
  61                                 offsetof(struct ipv4_hdr, time_to_live)));
  62         data[5] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[5], __m128i *,
  63                                 sizeof(struct ether_hdr) +
  64                                 offsetof(struct ipv4_hdr, time_to_live)));
  65         data[6] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[6], __m128i *,
  66                                 sizeof(struct ether_hdr) +
  67                                 offsetof(struct ipv4_hdr, time_to_live)));
  68         data[7] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[7], __m128i *,
  69                                 sizeof(struct ether_hdr) +
  70                                 offsetof(struct ipv4_hdr, time_to_live)));
  71
  72         key[0].xmm = _mm_and_si128(data[0], mask0.x);
  73         key[1].xmm = _mm_and_si128(data[1], mask0.x);
  74         key[2].xmm = _mm_and_si128(data[2], mask0.x);
  75         key[3].xmm = _mm_and_si128(data[3], mask0.x);
  76         key[4].xmm = _mm_and_si128(data[4], mask0.x);
  77         key[5].xmm = _mm_and_si128(data[5], mask0.x);
  78         key[6].xmm = _mm_and_si128(data[6], mask0.x);
  79         key[7].xmm = _mm_and_si128(data[7], mask0.x);
  80
  81         const void *key_array[8] = {&key[0], &key[1], &key[2], &key[3],
  82                                 &key[4], &key[5], &key[6], &key[7]};
  83
  84         rte_hash_lookup_bulk(qconf->ipv4_lookup_struct, &key_array[0], 8, ret);
  85
  86         dst_port[0] = (uint8_t) ((ret[0] < 0) ?
  87                         portid : ipv4_l3fwd_out_if[ret[0]]);
  88         dst_port[1] = (uint8_t) ((ret[1] < 0) ?
  89                         portid : ipv4_l3fwd_out_if[ret[1]]);
  90         dst_port[2] = (uint8_t) ((ret[2] < 0) ?
  91                         portid : ipv4_l3fwd_out_if[ret[2]]);
  92         dst_port[3] = (uint8_t) ((ret[3] < 0) ?
  93                         portid : ipv4_l3fwd_out_if[ret[3]]);
  94         dst_port[4] = (uint8_t) ((ret[4] < 0) ?
  95                         portid : ipv4_l3fwd_out_if[ret[4]]);
  96         dst_port[5] = (uint8_t) ((ret[5] < 0) ?
  97                         portid : ipv4_l3fwd_out_if[ret[5]]);
  98         dst_port[6] = (uint8_t) ((ret[6] < 0) ?
  99                         portid : ipv4_l3fwd_out_if[ret[6]]);
 100         dst_port[7] = (uint8_t) ((ret[7] < 0) ?
 101                         portid : ipv4_l3fwd_out_if[ret[7]]);
 102
 103         if (dst_port[0] >= RTE_MAX_ETHPORTS ||
 104                         (enabled_port_mask & 1 << dst_port[0]) == 0)
 105                 dst_port[0] = portid;
 106
 107         if (dst_port[1] >= RTE_MAX_ETHPORTS ||
 108                         (enabled_port_mask & 1 << dst_port[1]) == 0)
 109                 dst_port[1] = portid;
 110
 111         if (dst_port[2] >= RTE_MAX_ETHPORTS ||
 112                         (enabled_port_mask & 1 << dst_port[2]) == 0)
 113                 dst_port[2] = portid;
 114
 115         if (dst_port[3] >= RTE_MAX_ETHPORTS ||
 116                         (enabled_port_mask & 1 << dst_port[3]) == 0)
 117                 dst_port[3] = portid;
 118
 119         if (dst_port[4] >= RTE_MAX_ETHPORTS ||
 120                         (enabled_port_mask & 1 << dst_port[4]) == 0)
 121                 dst_port[4] = portid;
 122
 123         if (dst_port[5] >= RTE_MAX_ETHPORTS ||
 124                         (enabled_port_mask & 1 << dst_port[5]) == 0)
 125                 dst_port[5] = portid;
 126
 127         if (dst_port[6] >= RTE_MAX_ETHPORTS ||
 128                         (enabled_port_mask & 1 << dst_port[6]) == 0)
 129                 dst_port[6] = portid;
 130
 131         if (dst_port[7] >= RTE_MAX_ETHPORTS ||
 132                         (enabled_port_mask & 1 << dst_port[7]) == 0)
 133                 dst_port[7] = portid;
 134
 135 }
 136
 137 static inline void
 138 get_ipv6_5tuple(struct rte_mbuf *m0, __m128i mask0,
 139                 __m128i mask1, union ipv6_5tuple_host *key)
 140 {
 141         __m128i tmpdata0 = _mm_loadu_si128(
 142                         rte_pktmbuf_mtod_offset(m0, __m128i *,
 143                                 sizeof(struct ether_hdr) +
 144                                 offsetof(struct ipv6_hdr, payload_len)));
 145
 146         __m128i tmpdata1 = _mm_loadu_si128(
 147                         rte_pktmbuf_mtod_offset(m0, __m128i *,
 148                                 sizeof(struct ether_hdr) +
 149                                 offsetof(struct ipv6_hdr, payload_len) +
 150                                 sizeof(__m128i)));
 151
 152         __m128i tmpdata2 = _mm_loadu_si128(
 153                         rte_pktmbuf_mtod_offset(m0, __m128i *,
 154                                 sizeof(struct ether_hdr) +
 155                                 offsetof(struct ipv6_hdr, payload_len) +
 156                                 sizeof(__m128i) + sizeof(__m128i)));
 157
 158         key->xmm[0] = _mm_and_si128(tmpdata0, mask0);
 159         key->xmm[1] = tmpdata1;
 160         key->xmm[2] = _mm_and_si128(tmpdata2, mask1);
 161 }
 162
 163 static inline __attribute__((always_inline)) void
 164 em_get_dst_port_ipv6x8(struct lcore_conf *qconf, struct rte_mbuf *m[8],
 165                 uint8_t portid, uint16_t dst_port[8])
 166 {
 167         int32_t ret[8];
 168         union ipv6_5tuple_host key[8];
 169
 170         get_ipv6_5tuple(m[0], mask1.x, mask2.x, &key[0]);
 171         get_ipv6_5tuple(m[1], mask1.x, mask2.x, &key[1]);
 172         get_ipv6_5tuple(m[2], mask1.x, mask2.x, &key[2]);
 173         get_ipv6_5tuple(m[3], mask1.x, mask2.x, &key[3]);
 174         get_ipv6_5tuple(m[4], mask1.x, mask2.x, &key[4]);
 175         get_ipv6_5tuple(m[5], mask1.x, mask2.x, &key[5]);
 176         get_ipv6_5tuple(m[6], mask1.x, mask2.x, &key[6]);
 177         get_ipv6_5tuple(m[7], mask1.x, mask2.x, &key[7]);
 178
 179         const void *key_array[8] = {&key[0], &key[1], &key[2], &key[3],
 180                         &key[4], &key[5], &key[6], &key[7]};
 181
 182         rte_hash_lookup_bulk(qconf->ipv6_lookup_struct, &key_array[0], 8, ret);
 183
 184         dst_port[0] = (uint8_t) ((ret[0] < 0) ?
 185                         portid : ipv6_l3fwd_out_if[ret[0]]);
 186         dst_port[1] = (uint8_t) ((ret[1] < 0) ?
 187                         portid : ipv6_l3fwd_out_if[ret[1]]);
 188         dst_port[2] = (uint8_t) ((ret[2] < 0) ?
 189                         portid : ipv6_l3fwd_out_if[ret[2]]);
 190         dst_port[3] = (uint8_t) ((ret[3] < 0) ?
 191                         portid : ipv6_l3fwd_out_if[ret[3]]);
 192         dst_port[4] = (uint8_t) ((ret[4] < 0) ?
 193                         portid : ipv6_l3fwd_out_if[ret[4]]);
 194         dst_port[5] = (uint8_t) ((ret[5] < 0) ?
 195                         portid : ipv6_l3fwd_out_if[ret[5]]);
 196         dst_port[6] = (uint8_t) ((ret[6] < 0) ?
 197                         portid : ipv6_l3fwd_out_if[ret[6]]);
 198         dst_port[7] = (uint8_t) ((ret[7] < 0) ?
 199                         portid : ipv6_l3fwd_out_if[ret[7]]);
 200
 201         if (dst_port[0] >= RTE_MAX_ETHPORTS ||
 202                         (enabled_port_mask & 1 << dst_port[0]) == 0)
 203                 dst_port[0] = portid;
 204
 205         if (dst_port[1] >= RTE_MAX_ETHPORTS ||
 206                         (enabled_port_mask & 1 << dst_port[1]) == 0)
 207                 dst_port[1] = portid;
 208
 209         if (dst_port[2] >= RTE_MAX_ETHPORTS ||
 210                         (enabled_port_mask & 1 << dst_port[2]) == 0)
 211                 dst_port[2] = portid;
 212
 213         if (dst_port[3] >= RTE_MAX_ETHPORTS ||
 214                         (enabled_port_mask & 1 << dst_port[3]) == 0)
 215                 dst_port[3] = portid;
 216
 217         if (dst_port[4] >= RTE_MAX_ETHPORTS ||
 218                         (enabled_port_mask & 1 << dst_port[4]) == 0)
 219                 dst_port[4] = portid;
 220
 221         if (dst_port[5] >= RTE_MAX_ETHPORTS ||
 222                         (enabled_port_mask & 1 << dst_port[5]) == 0)
 223                 dst_port[5] = portid;
 224
 225         if (dst_port[6] >= RTE_MAX_ETHPORTS ||
 226                         (enabled_port_mask & 1 << dst_port[6]) == 0)
 227                 dst_port[6] = portid;
 228
 229         if (dst_port[7] >= RTE_MAX_ETHPORTS ||
 230                         (enabled_port_mask & 1 << dst_port[7]) == 0)
 231                 dst_port[7] = portid;
 232
 233 }
 234
 235 static inline __attribute__((always_inline)) uint16_t
 236 em_get_dst_port(const struct lcore_conf *qconf, struct rte_mbuf *pkt,
 237                 uint8_t portid)
 238 {
 239         uint8_t next_hop;
 240         struct ipv4_hdr *ipv4_hdr;
 241         struct ipv6_hdr *ipv6_hdr;
 242         uint32_t tcp_or_udp;
 243         uint32_t l3_ptypes;
 244
 245         tcp_or_udp = pkt->packet_type & (RTE_PTYPE_L4_TCP | RTE_PTYPE_L4_UDP);
 246         l3_ptypes = pkt->packet_type & RTE_PTYPE_L3_MASK;
 247
 248         if (tcp_or_udp && (l3_ptypes == RTE_PTYPE_L3_IPV4)) {
 249
 250                 /* Handle IPv4 headers.*/
 251                 ipv4_hdr = rte_pktmbuf_mtod_offset(pkt, struct ipv4_hdr *,
 252                                 sizeof(struct ether_hdr));
 253
 254                 next_hop = em_get_ipv4_dst_port(ipv4_hdr, portid,
 255                                 qconf->ipv4_lookup_struct);
 256
 257                 if (next_hop >= RTE_MAX_ETHPORTS ||
 258                                 (enabled_port_mask & 1 << next_hop) == 0)
 259                         next_hop = portid;
 260
 261                 return next_hop;
 262
 263         } else if (tcp_or_udp && (l3_ptypes == RTE_PTYPE_L3_IPV6)) {
 264
 265                 /* Handle IPv6 headers.*/
 266                 ipv6_hdr = rte_pktmbuf_mtod_offset(pkt, struct ipv6_hdr *,
 267                                 sizeof(struct ether_hdr));
 268
 269                 next_hop = em_get_ipv6_dst_port(ipv6_hdr, portid,
 270                                 qconf->ipv6_lookup_struct);
 271
 272                 if (next_hop >= RTE_MAX_ETHPORTS ||
 273                                 (enabled_port_mask & 1 << next_hop) == 0)
 274                         next_hop = portid;
 275
 276                 return next_hop;
 277
 278         }
 279
 280         return portid;
 281 }
 282
 283 /*
 284  * Buffer optimized handling of packets, invoked
 285  * from main_loop.
 286  */
 287 static inline void
 288 l3fwd_em_send_packets(int nb_rx, struct rte_mbuf **pkts_burst,
 289                 uint8_t portid, struct lcore_conf *qconf)
 290 {
 291         int32_t j;
 292         uint16_t dst_port[MAX_PKT_BURST];
 293
 294         /*
 295          * Send nb_rx - nb_rx%8 packets
 296          * in groups of 8.
 297          */
 298         int32_t n = RTE_ALIGN_FLOOR(nb_rx, 8);
 299
 300         for (j = 0; j < n; j += 8) {
 301
 302                 uint32_t pkt_type =
 303                         pkts_burst[j]->packet_type &
 304                         pkts_burst[j+1]->packet_type &
 305                         pkts_burst[j+2]->packet_type &
 306                         pkts_burst[j+3]->packet_type &
 307                         pkts_burst[j+4]->packet_type &
 308                         pkts_burst[j+5]->packet_type &
 309                         pkts_burst[j+6]->packet_type &
 310                         pkts_burst[j+7]->packet_type;
 311
 312                 uint32_t l3_type = pkt_type & RTE_PTYPE_L3_MASK;
 313                 uint32_t tcp_or_udp = pkt_type &
 314                         (RTE_PTYPE_L4_TCP | RTE_PTYPE_L4_UDP);
 315
 316                 if (tcp_or_udp && (l3_type == RTE_PTYPE_L3_IPV4)) {
 317
 318                         em_get_dst_port_ipv4x8(qconf, &pkts_burst[j], portid, &dst_port[j]);
 319
 320                 } else if (tcp_or_udp && (l3_type == RTE_PTYPE_L3_IPV6)) {
 321
 322                         em_get_dst_port_ipv6x8(qconf, &pkts_burst[j], portid, &dst_port[j]);
 323
 324                 } else {
 325                         dst_port[j]   = em_get_dst_port(qconf, pkts_burst[j], portid);
 326                         dst_port[j+1] = em_get_dst_port(qconf, pkts_burst[j+1], portid);
 327                         dst_port[j+2] = em_get_dst_port(qconf, pkts_burst[j+2], portid);
 328                         dst_port[j+3] = em_get_dst_port(qconf, pkts_burst[j+3], portid);
 329                         dst_port[j+4] = em_get_dst_port(qconf, pkts_burst[j+4], portid);
 330                         dst_port[j+5] = em_get_dst_port(qconf, pkts_burst[j+5], portid);
 331                         dst_port[j+6] = em_get_dst_port(qconf, pkts_burst[j+6], portid);
 332                         dst_port[j+7] = em_get_dst_port(qconf, pkts_burst[j+7], portid);
 333                 }
 334         }
 335
 336         for (; j < nb_rx; j++)
 337                 dst_port[j] = em_get_dst_port(qconf, pkts_burst[j], portid);
 338
 339         send_packets_multi(qconf, pkts_burst, dst_port, nb_rx);
 340
 341 }
 342 #endif /* __L3FWD_EM_SSE_HLM_H__ */