1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2010-2014 Intel Corporation. 3 * Copyright 2014 6WIND S.A. 4 */ 5 6 #ifndef _RTE_MBUF_CORE_H_ 7 #define _RTE_MBUF_CORE_H_ 8 9 /** 10 * @file 11 * This file contains definition of RTE mbuf structure itself, 12 * packet offload flags and some related macros. 13 * For majority of DPDK entities, it is not recommended to include 14 * this file directly, use include <rte_mbuf.h> instead. 15 * 16 * New fields and flags should fit in the "dynamic space". 17 */ 18 19 #include <stdint.h> 20 21 #include <rte_compat.h> 22 #include <rte_byteorder.h> 23 24 #ifdef __cplusplus 25 extern "C" { 26 #endif 27 28 /* 29 * Packet Offload Features Flags. It also carry packet type information. 30 * Critical resources. Both rx/tx shared these bits. Be cautious on any change 31 * 32 * - RX flags start at bit position zero, and get added to the left of previous 33 * flags. 34 * - The most-significant 3 bits are reserved for generic mbuf flags 35 * - TX flags therefore start at bit position 60 (i.e. 63-3), and new flags get 36 * added to the right of the previously defined flags i.e. they should count 37 * downwards, not upwards. 38 * 39 * Keep these flags synchronized with rte_get_rx_ol_flag_name() and 40 * rte_get_tx_ol_flag_name(). 41 */ 42 43 /** 44 * The RX packet is a 802.1q VLAN packet, and the tci has been 45 * saved in in mbuf->vlan_tci. 46 * If the flag RTE_MBUF_F_RX_VLAN_STRIPPED is also present, the VLAN 47 * header has been stripped from mbuf data, else it is still 48 * present. 49 */ 50 #define RTE_MBUF_F_RX_VLAN (1ULL << 0) 51 #define PKT_RX_VLAN RTE_DEPRECATED(PKT_RX_VLAN) RTE_MBUF_F_RX_VLAN 52 53 /** RX packet with RSS hash result. */ 54 #define RTE_MBUF_F_RX_RSS_HASH (1ULL << 1) 55 #define PKT_RX_RSS_HASH RTE_DEPRECATED(PKT_RX_RSS_HASH) RTE_MBUF_F_RX_RSS_HASH 56 57 /** RX packet with FDIR match indicate. */ 58 #define RTE_MBUF_F_RX_FDIR (1ULL << 2) 59 #define PKT_RX_FDIR RTE_DEPRECATED(PKT_RX_FDIR) RTE_MBUF_F_RX_FDIR 60 61 /** 62 * This flag is set when the outermost IP header checksum is detected as 63 * wrong by the hardware. 64 */ 65 #define RTE_MBUF_F_RX_OUTER_IP_CKSUM_BAD (1ULL << 5) 66 #define PKT_RX_OUTER_IP_CKSUM_BAD RTE_DEPRECATED(PKT_RX_OUTER_IP_CKSUM_BAD) \ 67 RTE_MBUF_F_RX_OUTER_IP_CKSUM_BAD 68 69 /** 70 * A vlan has been stripped by the hardware and its tci is saved in 71 * mbuf->vlan_tci. This can only happen if vlan stripping is enabled 72 * in the RX configuration of the PMD. 73 * When RTE_MBUF_F_RX_VLAN_STRIPPED is set, RTE_MBUF_F_RX_VLAN must also be set. 74 */ 75 #define RTE_MBUF_F_RX_VLAN_STRIPPED (1ULL << 6) 76 #define PKT_RX_VLAN_STRIPPED RTE_DEPRECATED(PKT_RX_VLAN_STRIPPED) \ 77 RTE_MBUF_F_RX_VLAN_STRIPPED 78 79 /** 80 * Mask of bits used to determine the status of RX IP checksum. 81 * - RTE_MBUF_F_RX_IP_CKSUM_UNKNOWN: no information about the RX IP checksum 82 * - RTE_MBUF_F_RX_IP_CKSUM_BAD: the IP checksum in the packet is wrong 83 * - RTE_MBUF_F_RX_IP_CKSUM_GOOD: the IP checksum in the packet is valid 84 * - RTE_MBUF_F_RX_IP_CKSUM_NONE: the IP checksum is not correct in the packet 85 * data, but the integrity of the IP header is verified. 86 */ 87 #define RTE_MBUF_F_RX_IP_CKSUM_MASK ((1ULL << 4) | (1ULL << 7)) 88 #define PKT_RX_IP_CKSUM_MASK RTE_DEPRECATED(PKT_RX_IP_CKSUM_MASK) \ 89 RTE_MBUF_F_RX_IP_CKSUM_MASK 90 91 #define RTE_MBUF_F_RX_IP_CKSUM_UNKNOWN 0 92 #define RTE_MBUF_F_RX_IP_CKSUM_BAD (1ULL << 4) 93 #define RTE_MBUF_F_RX_IP_CKSUM_GOOD (1ULL << 7) 94 #define RTE_MBUF_F_RX_IP_CKSUM_NONE ((1ULL << 4) | (1ULL << 7)) 95 #define PKT_RX_IP_CKSUM_UNKNOWN RTE_DEPRECATED(PKT_RX_IP_CKSUM_UNKNOWN) \ 96 RTE_MBUF_F_RX_IP_CKSUM_UNKNOWN 97 #define PKT_RX_IP_CKSUM_BAD RTE_DEPRECATED(PKT_RX_IP_CKSUM_BAD) \ 98 RTE_MBUF_F_RX_IP_CKSUM_BAD 99 #define PKT_RX_IP_CKSUM_GOOD RTE_DEPRECATED(PKT_RX_IP_CKSUM_GOOD) \ 100 RTE_MBUF_F_RX_IP_CKSUM_GOOD 101 #define PKT_RX_IP_CKSUM_NONE RTE_DEPRECATED(PKT_RX_IP_CKSUM_NONE) \ 102 RTE_MBUF_F_RX_IP_CKSUM_NONE 103 104 /** 105 * Mask of bits used to determine the status of RX L4 checksum. 106 * - RTE_MBUF_F_RX_L4_CKSUM_UNKNOWN: no information about the RX L4 checksum 107 * - RTE_MBUF_F_RX_L4_CKSUM_BAD: the L4 checksum in the packet is wrong 108 * - RTE_MBUF_F_RX_L4_CKSUM_GOOD: the L4 checksum in the packet is valid 109 * - RTE_MBUF_F_RX_L4_CKSUM_NONE: the L4 checksum is not correct in the packet 110 * data, but the integrity of the L4 data is verified. 111 */ 112 #define RTE_MBUF_F_RX_L4_CKSUM_MASK ((1ULL << 3) | (1ULL << 8)) 113 #define PKT_RX_L4_CKSUM_MASK RTE_DEPRECATED(PKT_RX_L4_CKSUM_MASK) \ 114 RTE_MBUF_F_RX_L4_CKSUM_MASK 115 116 #define RTE_MBUF_F_RX_L4_CKSUM_UNKNOWN 0 117 #define RTE_MBUF_F_RX_L4_CKSUM_BAD (1ULL << 3) 118 #define RTE_MBUF_F_RX_L4_CKSUM_GOOD (1ULL << 8) 119 #define RTE_MBUF_F_RX_L4_CKSUM_NONE ((1ULL << 3) | (1ULL << 8)) 120 #define PKT_RX_L4_CKSUM_UNKNOWN RTE_DEPRECATED(PKT_RX_L4_CKSUM_UNKNOWN) \ 121 RTE_MBUF_F_RX_L4_CKSUM_UNKNOWN 122 #define PKT_RX_L4_CKSUM_BAD RTE_DEPRECATED(PKT_RX_L4_CKSUM_BAD) \ 123 RTE_MBUF_F_RX_L4_CKSUM_BAD 124 #define PKT_RX_L4_CKSUM_GOOD RTE_DEPRECATED(PKT_RX_L4_CKSUM_GOOD) \ 125 RTE_MBUF_F_RX_L4_CKSUM_GOOD 126 #define PKT_RX_L4_CKSUM_NONE RTE_DEPRECATED(PKT_RX_L4_CKSUM_NONE) \ 127 RTE_MBUF_F_RX_L4_CKSUM_NONE 128 129 /** RX IEEE1588 L2 Ethernet PT Packet. */ 130 #define RTE_MBUF_F_RX_IEEE1588_PTP (1ULL << 9) 131 #define PKT_RX_IEEE1588_PTP RTE_DEPRECATED(PKT_RX_IEEE1588_PTP) \ 132 RTE_MBUF_F_RX_IEEE1588_PTP 133 134 /** RX IEEE1588 L2/L4 timestamped packet.*/ 135 #define RTE_MBUF_F_RX_IEEE1588_TMST (1ULL << 10) 136 #define PKT_RX_IEEE1588_TMST RTE_DEPRECATED(PKT_RX_IEEE1588_TMST) \ 137 RTE_MBUF_F_RX_IEEE1588_TMST 138 139 /** FD id reported if FDIR match. */ 140 #define RTE_MBUF_F_RX_FDIR_ID (1ULL << 13) 141 #define PKT_RX_FDIR_ID RTE_DEPRECATED(PKT_RX_FDIR_ID) \ 142 RTE_MBUF_F_RX_FDIR_ID 143 144 /** Flexible bytes reported if FDIR match. */ 145 #define RTE_MBUF_F_RX_FDIR_FLX (1ULL << 14) 146 #define PKT_RX_FDIR_FLX RTE_DEPRECATED(PKT_RX_FDIR_FLX) \ 147 RTE_MBUF_F_RX_FDIR_FLX 148 149 /** 150 * The outer VLAN has been stripped by the hardware and its TCI is 151 * saved in mbuf->vlan_tci_outer. 152 * This can only happen if VLAN stripping is enabled in the Rx 153 * configuration of the PMD. 154 * When RTE_MBUF_F_RX_QINQ_STRIPPED is set, the flags RTE_MBUF_F_RX_VLAN 155 * and RTE_MBUF_F_RX_QINQ must also be set. 156 * 157 * - If both RTE_MBUF_F_RX_QINQ_STRIPPED and RTE_MBUF_F_RX_VLAN_STRIPPED are 158 * set, the 2 VLANs have been stripped by the hardware and their TCIs are 159 * saved in mbuf->vlan_tci (inner) and mbuf->vlan_tci_outer (outer). 160 * - If RTE_MBUF_F_RX_QINQ_STRIPPED is set and RTE_MBUF_F_RX_VLAN_STRIPPED 161 * is unset, only the outer VLAN is removed from packet data, but both tci 162 * are saved in mbuf->vlan_tci (inner) and mbuf->vlan_tci_outer (outer). 163 */ 164 #define RTE_MBUF_F_RX_QINQ_STRIPPED (1ULL << 15) 165 #define PKT_RX_QINQ_STRIPPED RTE_DEPRECATED(PKT_RX_QINQ_STRIPPED) \ 166 RTE_MBUF_F_RX_QINQ_STRIPPED 167 168 /** 169 * When packets are coalesced by a hardware or virtual driver, this flag 170 * can be set in the RX mbuf, meaning that the m->tso_segsz field is 171 * valid and is set to the segment size of original packets. 172 */ 173 #define RTE_MBUF_F_RX_LRO (1ULL << 16) 174 #define PKT_RX_LRO RTE_DEPRECATED(PKT_RX_LRO) RTE_MBUF_F_RX_LRO 175 176 /* There is no flag defined at offset 17. It is free for any future use. */ 177 178 /** 179 * Indicate that security offload processing was applied on the RX packet. 180 */ 181 #define RTE_MBUF_F_RX_SEC_OFFLOAD (1ULL << 18) 182 #define PKT_RX_SEC_OFFLOAD RTE_DEPRECATED(PKT_RX_SEC_OFFLOAD) \ 183 RTE_MBUF_F_RX_SEC_OFFLOAD 184 185 /** 186 * Indicate that security offload processing failed on the RX packet. 187 */ 188 #define RTE_MBUF_F_RX_SEC_OFFLOAD_FAILED (1ULL << 19) 189 #define PKT_RX_SEC_OFFLOAD_FAILED RTE_DEPRECATED(PKT_RX_SEC_OFFLOAD_FAILED) \ 190 RTE_MBUF_F_RX_SEC_OFFLOAD_FAILED 191 192 /** 193 * The RX packet is a double VLAN, and the outer tci has been 194 * saved in mbuf->vlan_tci_outer. If this flag is set, RTE_MBUF_F_RX_VLAN 195 * must also be set and the inner tci is saved in mbuf->vlan_tci. 196 * If the flag RTE_MBUF_F_RX_QINQ_STRIPPED is also present, both VLANs 197 * headers have been stripped from mbuf data, else they are still 198 * present. 199 */ 200 #define RTE_MBUF_F_RX_QINQ (1ULL << 20) 201 #define PKT_RX_QINQ RTE_DEPRECATED(PKT_RX_QINQ) RTE_MBUF_F_RX_QINQ 202 203 /** 204 * Mask of bits used to determine the status of outer RX L4 checksum. 205 * - RTE_MBUF_F_RX_OUTER_L4_CKSUM_UNKNOWN: no info about the outer RX L4 206 * checksum 207 * - RTE_MBUF_F_RX_OUTER_L4_CKSUM_BAD: the outer L4 checksum in the packet 208 * is wrong 209 * - RTE_MBUF_F_RX_OUTER_L4_CKSUM_GOOD: the outer L4 checksum in the packet 210 * is valid 211 * - RTE_MBUF_F_RX_OUTER_L4_CKSUM_INVALID: invalid outer L4 checksum state. 212 * 213 * The detection of RTE_MBUF_F_RX_OUTER_L4_CKSUM_GOOD shall be based on the 214 * given HW capability, At minimum, the PMD should support 215 * RTE_MBUF_F_RX_OUTER_L4_CKSUM_UNKNOWN and RTE_MBUF_F_RX_OUTER_L4_CKSUM_BAD 216 * states if the RTE_ETH_RX_OFFLOAD_OUTER_UDP_CKSUM offload is available. 217 */ 218 #define RTE_MBUF_F_RX_OUTER_L4_CKSUM_MASK ((1ULL << 21) | (1ULL << 22)) 219 #define PKT_RX_OUTER_L4_CKSUM_MASK RTE_DEPRECATED(PKT_RX_OUTER_L4_CKSUM_MASK) \ 220 RTE_MBUF_F_RX_OUTER_L4_CKSUM_MASK 221 222 #define RTE_MBUF_F_RX_OUTER_L4_CKSUM_UNKNOWN 0 223 #define RTE_MBUF_F_RX_OUTER_L4_CKSUM_BAD (1ULL << 21) 224 #define RTE_MBUF_F_RX_OUTER_L4_CKSUM_GOOD (1ULL << 22) 225 #define RTE_MBUF_F_RX_OUTER_L4_CKSUM_INVALID ((1ULL << 21) | (1ULL << 22)) 226 #define PKT_RX_OUTER_L4_CKSUM_UNKNOWN \ 227 RTE_DEPRECATED(PKT_RX_OUTER_L4_CKSUM_UNKNOWN) \ 228 RTE_MBUF_F_RX_OUTER_L4_CKSUM_UNKNOWN 229 #define PKT_RX_OUTER_L4_CKSUM_BAD RTE_DEPRECATED(PKT_RX_OUTER_L4_CKSUM_BAD) \ 230 RTE_MBUF_F_RX_OUTER_L4_CKSUM_BAD 231 #define PKT_RX_OUTER_L4_CKSUM_GOOD RTE_DEPRECATED(PKT_RX_OUTER_L4_CKSUM_GOOD) \ 232 RTE_MBUF_F_RX_OUTER_L4_CKSUM_GOOD 233 #define PKT_RX_OUTER_L4_CKSUM_INVALID \ 234 RTE_DEPRECATED(PKT_RX_OUTER_L4_CKSUM_INVALID) \ 235 RTE_MBUF_F_RX_OUTER_L4_CKSUM_INVALID 236 237 /* add new RX flags here, don't forget to update RTE_MBUF_F_FIRST_FREE */ 238 239 #define RTE_MBUF_F_FIRST_FREE (1ULL << 23) 240 #define PKT_FIRST_FREE RTE_DEPRECATED(PKT_FIRST_FREE) RTE_MBUF_F_FIRST_FREE 241 #define RTE_MBUF_F_LAST_FREE (1ULL << 40) 242 #define PKT_LAST_FREE RTE_DEPRECATED(PKT_LAST_FREE) RTE_MBUF_F_LAST_FREE 243 244 /* add new TX flags here, don't forget to update RTE_MBUF_F_LAST_FREE */ 245 246 /** 247 * Outer UDP checksum offload flag. This flag is used for enabling 248 * outer UDP checksum in PMD. To use outer UDP checksum, the user needs to 249 * 1) Enable the following in mbuf, 250 * a) Fill outer_l2_len and outer_l3_len in mbuf. 251 * b) Set the RTE_MBUF_F_TX_OUTER_UDP_CKSUM flag. 252 * c) Set the RTE_MBUF_F_TX_OUTER_IPV4 or RTE_MBUF_F_TX_OUTER_IPV6 flag. 253 * 2) Configure RTE_ETH_TX_OFFLOAD_OUTER_UDP_CKSUM offload flag. 254 */ 255 #define RTE_MBUF_F_TX_OUTER_UDP_CKSUM (1ULL << 41) 256 #define PKT_TX_OUTER_UDP_CKSUM RTE_DEPRECATED(PKT_TX_OUTER_UDP_CKSUM) \ 257 RTE_MBUF_F_TX_OUTER_UDP_CKSUM 258 259 /** 260 * UDP Fragmentation Offload flag. This flag is used for enabling UDP 261 * fragmentation in SW or in HW. When use UFO, mbuf->tso_segsz is used 262 * to store the MSS of UDP fragments. 263 */ 264 #define RTE_MBUF_F_TX_UDP_SEG (1ULL << 42) 265 #define PKT_TX_UDP_SEG RTE_DEPRECATED(PKT_TX_UDP_SEG) RTE_MBUF_F_TX_UDP_SEG 266 267 /** 268 * Request security offload processing on the TX packet. 269 * To use Tx security offload, the user needs to fill l2_len in mbuf 270 * indicating L2 header size and where L3 header starts. 271 */ 272 #define RTE_MBUF_F_TX_SEC_OFFLOAD (1ULL << 43) 273 #define PKT_TX_SEC_OFFLOAD RTE_DEPRECATED(PKT_TX_SEC_OFFLOAD) \ 274 RTE_MBUF_F_TX_SEC_OFFLOAD 275 276 /** 277 * Offload the MACsec. This flag must be set by the application to enable 278 * this offload feature for a packet to be transmitted. 279 */ 280 #define RTE_MBUF_F_TX_MACSEC (1ULL << 44) 281 #define PKT_TX_MACSEC RTE_DEPRECATED(PKT_TX_MACSEC) RTE_MBUF_F_TX_MACSEC 282 283 /** 284 * Bits 45:48 used for the tunnel type. 285 * The tunnel type must be specified for TSO or checksum on the inner part 286 * of tunnel packets. 287 * These flags can be used with RTE_MBUF_F_TX_TCP_SEG for TSO, or 288 * RTE_MBUF_F_TX_xxx_CKSUM. 289 * The mbuf fields for inner and outer header lengths are required: 290 * outer_l2_len, outer_l3_len, l2_len, l3_len, l4_len and tso_segsz for TSO. 291 */ 292 #define RTE_MBUF_F_TX_TUNNEL_VXLAN (0x1ULL << 45) 293 #define RTE_MBUF_F_TX_TUNNEL_GRE (0x2ULL << 45) 294 #define RTE_MBUF_F_TX_TUNNEL_IPIP (0x3ULL << 45) 295 #define RTE_MBUF_F_TX_TUNNEL_GENEVE (0x4ULL << 45) 296 /** TX packet with MPLS-in-UDP RFC 7510 header. */ 297 #define RTE_MBUF_F_TX_TUNNEL_MPLSINUDP (0x5ULL << 45) 298 #define RTE_MBUF_F_TX_TUNNEL_VXLAN_GPE (0x6ULL << 45) 299 #define RTE_MBUF_F_TX_TUNNEL_GTP (0x7ULL << 45) 300 #define RTE_MBUF_F_TX_TUNNEL_ESP (0x8ULL << 45) 301 /** 302 * Generic IP encapsulated tunnel type, used for TSO and checksum offload. 303 * It can be used for tunnels which are not standards or listed above. 304 * It is preferred to use specific tunnel flags like RTE_MBUF_F_TX_TUNNEL_GRE 305 * or RTE_MBUF_F_TX_TUNNEL_IPIP if possible. 306 * The ethdev must be configured with RTE_ETH_TX_OFFLOAD_IP_TNL_TSO. 307 * Outer and inner checksums are done according to the existing flags like 308 * RTE_MBUF_F_TX_xxx_CKSUM. 309 * Specific tunnel headers that contain payload length, sequence id 310 * or checksum are not expected to be updated. 311 */ 312 #define RTE_MBUF_F_TX_TUNNEL_IP (0xDULL << 45) 313 /** 314 * Generic UDP encapsulated tunnel type, used for TSO and checksum offload. 315 * UDP tunnel type implies outer IP layer. 316 * It can be used for tunnels which are not standards or listed above. 317 * It is preferred to use specific tunnel flags like RTE_MBUF_F_TX_TUNNEL_VXLAN 318 * if possible. 319 * The ethdev must be configured with RTE_ETH_TX_OFFLOAD_UDP_TNL_TSO. 320 * Outer and inner checksums are done according to the existing flags like 321 * RTE_MBUF_F_TX_xxx_CKSUM. 322 * Specific tunnel headers that contain payload length, sequence id 323 * or checksum are not expected to be updated. 324 */ 325 #define RTE_MBUF_F_TX_TUNNEL_UDP (0xEULL << 45) 326 /* add new TX TUNNEL type here */ 327 #define RTE_MBUF_F_TX_TUNNEL_MASK (0xFULL << 45) 328 329 #define PKT_TX_TUNNEL_VXLAN RTE_DEPRECATED(PKT_TX_TUNNEL_VXLAN) \ 330 RTE_MBUF_F_TX_TUNNEL_VXLAN 331 #define PKT_TX_TUNNEL_GRE RTE_DEPRECATED(PKT_TX_TUNNEL_GRE) \ 332 RTE_MBUF_F_TX_TUNNEL_GRE 333 #define PKT_TX_TUNNEL_IPIP RTE_DEPRECATED(PKT_TX_TUNNEL_IPIP) \ 334 RTE_MBUF_F_TX_TUNNEL_IPIP 335 #define PKT_TX_TUNNEL_GENEVE RTE_DEPRECATED(PKT_TX_TUNNEL_GENEVE) \ 336 RTE_MBUF_F_TX_TUNNEL_GENEVE 337 #define PKT_TX_TUNNEL_MPLSINUDP RTE_DEPRECATED(PKT_TX_TUNNEL_MPLSINUDP) \ 338 RTE_MBUF_F_TX_TUNNEL_MPLSINUDP 339 #define PKT_TX_TUNNEL_VXLAN_GPE RTE_DEPRECATED(PKT_TX_TUNNEL_VXLAN_GPE) \ 340 RTE_MBUF_F_TX_TUNNEL_VXLAN_GPE 341 #define PKT_TX_TUNNEL_GTP RTE_DEPRECATED(PKT_TX_TUNNEL_GTP) \ 342 RTE_MBUF_F_TX_TUNNEL_GTP 343 #define PKT_TX_TUNNEL_IP RTE_DEPRECATED(PKT_TX_TUNNEL_IP) \ 344 RTE_MBUF_F_TX_TUNNEL_IP 345 #define PKT_TX_TUNNEL_UDP RTE_DEPRECATED(PKT_TX_TUNNEL_UDP) \ 346 RTE_MBUF_F_TX_TUNNEL_UDP 347 #define PKT_TX_TUNNEL_MASK RTE_DEPRECATED(PKT_TX_TUNNEL_MASK) \ 348 RTE_MBUF_F_TX_TUNNEL_MASK 349 350 /** 351 * Double VLAN insertion (QinQ) request to driver, driver may offload the 352 * insertion based on device capability. 353 * mbuf 'vlan_tci' & 'vlan_tci_outer' must be valid when this flag is set. 354 */ 355 #define RTE_MBUF_F_TX_QINQ (1ULL << 49) 356 #define PKT_TX_QINQ RTE_DEPRECATED(PKT_TX_QINQ) RTE_MBUF_F_TX_QINQ 357 #define PKT_TX_QINQ_PKT RTE_DEPRECATED(PKT_TX_QINQ_PKT) RTE_MBUF_F_TX_QINQ 358 359 /** 360 * TCP segmentation offload. To enable this offload feature for a 361 * packet to be transmitted on hardware supporting TSO: 362 * - set the RTE_MBUF_F_TX_TCP_SEG flag in mbuf->ol_flags (this flag implies 363 * RTE_MBUF_F_TX_TCP_CKSUM) 364 * - set the flag RTE_MBUF_F_TX_IPV4 or RTE_MBUF_F_TX_IPV6 365 * - if it's IPv4, set the RTE_MBUF_F_TX_IP_CKSUM flag 366 * - fill the mbuf offload information: l2_len, l3_len, l4_len, tso_segsz 367 */ 368 #define RTE_MBUF_F_TX_TCP_SEG (1ULL << 50) 369 #define PKT_TX_TCP_SEG RTE_DEPRECATED(PKT_TX_TCP_SEG) RTE_MBUF_F_TX_TCP_SEG 370 371 /** TX IEEE1588 packet to timestamp. */ 372 #define RTE_MBUF_F_TX_IEEE1588_TMST (1ULL << 51) 373 #define PKT_TX_IEEE1588_TMST RTE_DEPRECATED(PKT_TX_IEEE1588_TMST) \ 374 RTE_MBUF_F_TX_IEEE1588_TMST 375 376 /* 377 * Bits 52+53 used for L4 packet type with checksum enabled: 00: Reserved, 378 * 01: TCP checksum, 10: SCTP checksum, 11: UDP checksum. To use hardware 379 * L4 checksum offload, the user needs to: 380 * - fill l2_len and l3_len in mbuf 381 * - set the flags RTE_MBUF_F_TX_TCP_CKSUM, RTE_MBUF_F_TX_SCTP_CKSUM or 382 * RTE_MBUF_F_TX_UDP_CKSUM 383 * - set the flag RTE_MBUF_F_TX_IPV4 or RTE_MBUF_F_TX_IPV6 384 */ 385 386 /** Disable L4 cksum of TX pkt. */ 387 #define RTE_MBUF_F_TX_L4_NO_CKSUM (0ULL << 52) 388 389 /** TCP cksum of TX pkt. computed by NIC. */ 390 #define RTE_MBUF_F_TX_TCP_CKSUM (1ULL << 52) 391 392 /** SCTP cksum of TX pkt. computed by NIC. */ 393 #define RTE_MBUF_F_TX_SCTP_CKSUM (2ULL << 52) 394 395 /** UDP cksum of TX pkt. computed by NIC. */ 396 #define RTE_MBUF_F_TX_UDP_CKSUM (3ULL << 52) 397 398 /** Mask for L4 cksum offload request. */ 399 #define RTE_MBUF_F_TX_L4_MASK (3ULL << 52) 400 401 #define PKT_TX_L4_NO_CKSUM RTE_DEPRECATED(PKT_TX_L4_NO_CKSUM) \ 402 RTE_MBUF_F_TX_L4_NO_CKSUM 403 #define PKT_TX_TCP_CKSUM RTE_DEPRECATED(PKT_TX_TCP_CKSUM) \ 404 RTE_MBUF_F_TX_TCP_CKSUM 405 #define PKT_TX_SCTP_CKSUM RTE_DEPRECATED(PKT_TX_SCTP_CKSUM) \ 406 RTE_MBUF_F_TX_SCTP_CKSUM 407 #define PKT_TX_UDP_CKSUM RTE_DEPRECATED(PKT_TX_UDP_CKSUM) \ 408 RTE_MBUF_F_TX_UDP_CKSUM 409 #define PKT_TX_L4_MASK RTE_DEPRECATED(PKT_TX_L4_MASK) RTE_MBUF_F_TX_L4_MASK 410 411 /** 412 * Offload the IP checksum in the hardware. The flag RTE_MBUF_F_TX_IPV4 should 413 * also be set by the application, although a PMD will only check 414 * RTE_MBUF_F_TX_IP_CKSUM. 415 * - fill the mbuf offload information: l2_len, l3_len 416 */ 417 #define RTE_MBUF_F_TX_IP_CKSUM (1ULL << 54) 418 #define PKT_TX_IP_CKSUM RTE_DEPRECATED(PKT_TX_IP_CKSUM) RTE_MBUF_F_TX_IP_CKSUM 419 420 /** 421 * Packet is IPv4. This flag must be set when using any offload feature 422 * (TSO, L3 or L4 checksum) to tell the NIC that the packet is an IPv4 423 * packet. If the packet is a tunneled packet, this flag is related to 424 * the inner headers. 425 */ 426 #define RTE_MBUF_F_TX_IPV4 (1ULL << 55) 427 #define PKT_TX_IPV4 RTE_DEPRECATED(PKT_TX_IPV4) RTE_MBUF_F_TX_IPV4 428 429 /** 430 * Packet is IPv6. This flag must be set when using an offload feature 431 * (TSO or L4 checksum) to tell the NIC that the packet is an IPv6 432 * packet. If the packet is a tunneled packet, this flag is related to 433 * the inner headers. 434 */ 435 #define RTE_MBUF_F_TX_IPV6 (1ULL << 56) 436 #define PKT_TX_IPV6 RTE_DEPRECATED(PKT_TX_IPV6) RTE_MBUF_F_TX_IPV6 437 438 /** 439 * VLAN tag insertion request to driver, driver may offload the insertion 440 * based on the device capability. 441 * mbuf 'vlan_tci' field must be valid when this flag is set. 442 */ 443 #define RTE_MBUF_F_TX_VLAN (1ULL << 57) 444 #define PKT_TX_VLAN RTE_DEPRECATED(PKT_TX_VLAN) RTE_MBUF_F_TX_VLAN 445 #define PKT_TX_VLAN_PKT RTE_DEPRECATED(PKT_TX_VLAN_PKT) RTE_MBUF_F_TX_VLAN 446 447 /** 448 * Offload the IP checksum of an external header in the hardware. The 449 * flag RTE_MBUF_F_TX_OUTER_IPV4 should also be set by the application, although 450 * a PMD will only check RTE_MBUF_F_TX_OUTER_IP_CKSUM. 451 * - fill the mbuf offload information: outer_l2_len, outer_l3_len 452 */ 453 #define RTE_MBUF_F_TX_OUTER_IP_CKSUM (1ULL << 58) 454 #define PKT_TX_OUTER_IP_CKSUM RTE_DEPRECATED(PKT_TX_OUTER_IP_CKSUM) \ 455 RTE_MBUF_F_TX_OUTER_IP_CKSUM 456 457 /** 458 * Packet outer header is IPv4. This flag must be set when using any 459 * outer offload feature (L3 or L4 checksum) to tell the NIC that the 460 * outer header of the tunneled packet is an IPv4 packet. 461 */ 462 #define RTE_MBUF_F_TX_OUTER_IPV4 (1ULL << 59) 463 #define PKT_TX_OUTER_IPV4 RTE_DEPRECATED(PKT_TX_OUTER_IPV4) \ 464 RTE_MBUF_F_TX_OUTER_IPV4 465 466 /** 467 * Packet outer header is IPv6. This flag must be set when using any 468 * outer offload feature (L4 checksum) to tell the NIC that the outer 469 * header of the tunneled packet is an IPv6 packet. 470 */ 471 #define RTE_MBUF_F_TX_OUTER_IPV6 (1ULL << 60) 472 #define PKT_TX_OUTER_IPV6 RTE_DEPRECATED(PKT_TX_OUTER_IPV6) \ 473 RTE_MBUF_F_TX_OUTER_IPV6 474 475 /** 476 * Bitmask of all supported packet Tx offload features flags, 477 * which can be set for packet. 478 */ 479 #define RTE_MBUF_F_TX_OFFLOAD_MASK ( \ 480 RTE_MBUF_F_TX_OUTER_IPV6 | \ 481 RTE_MBUF_F_TX_OUTER_IPV4 | \ 482 RTE_MBUF_F_TX_OUTER_IP_CKSUM | \ 483 RTE_MBUF_F_TX_VLAN | \ 484 RTE_MBUF_F_TX_IPV6 | \ 485 RTE_MBUF_F_TX_IPV4 | \ 486 RTE_MBUF_F_TX_IP_CKSUM | \ 487 RTE_MBUF_F_TX_L4_MASK | \ 488 RTE_MBUF_F_TX_IEEE1588_TMST | \ 489 RTE_MBUF_F_TX_TCP_SEG | \ 490 RTE_MBUF_F_TX_QINQ | \ 491 RTE_MBUF_F_TX_TUNNEL_MASK | \ 492 RTE_MBUF_F_TX_MACSEC | \ 493 RTE_MBUF_F_TX_SEC_OFFLOAD | \ 494 RTE_MBUF_F_TX_UDP_SEG | \ 495 RTE_MBUF_F_TX_OUTER_UDP_CKSUM) 496 #define PKT_TX_OFFLOAD_MASK RTE_DEPRECATED(PKT_TX_OFFLOAD_MASK) RTE_MBUF_F_TX_OFFLOAD_MASK 497 498 /** 499 * Mbuf having an external buffer attached. shinfo in mbuf must be filled. 500 */ 501 #define RTE_MBUF_F_EXTERNAL (1ULL << 61) 502 #define EXT_ATTACHED_MBUF RTE_DEPRECATED(EXT_ATTACHED_MBUF) RTE_MBUF_F_EXTERNAL 503 504 #define RTE_MBUF_F_INDIRECT (1ULL << 62) /**< Indirect attached mbuf */ 505 #define IND_ATTACHED_MBUF RTE_DEPRECATED(IND_ATTACHED_MBUF) RTE_MBUF_F_INDIRECT 506 507 /** Alignment constraint of mbuf private area. */ 508 #define RTE_MBUF_PRIV_ALIGN 8 509 510 /** 511 * Some NICs need at least 2KB buffer to RX standard Ethernet frame without 512 * splitting it into multiple segments. 513 * So, for mbufs that planned to be involved into RX/TX, the recommended 514 * minimal buffer length is 2KB + RTE_PKTMBUF_HEADROOM. 515 */ 516 #define RTE_MBUF_DEFAULT_DATAROOM 2048 517 #define RTE_MBUF_DEFAULT_BUF_SIZE \ 518 (RTE_MBUF_DEFAULT_DATAROOM + RTE_PKTMBUF_HEADROOM) 519 520 struct rte_mbuf_sched { 521 uint32_t queue_id; /**< Queue ID. */ 522 uint8_t traffic_class; 523 /**< Traffic class ID. Traffic class 0 524 * is the highest priority traffic class. 525 */ 526 uint8_t color; 527 /**< Color. @see enum rte_color.*/ 528 uint16_t reserved; /**< Reserved. */ 529 }; /**< Hierarchical scheduler */ 530 531 /** 532 * enum for the tx_offload bit-fields lengths and offsets. 533 * defines the layout of rte_mbuf tx_offload field. 534 */ 535 enum { 536 RTE_MBUF_L2_LEN_BITS = 7, 537 RTE_MBUF_L3_LEN_BITS = 9, 538 RTE_MBUF_L4_LEN_BITS = 8, 539 RTE_MBUF_TSO_SEGSZ_BITS = 16, 540 RTE_MBUF_OUTL3_LEN_BITS = 9, 541 RTE_MBUF_OUTL2_LEN_BITS = 7, 542 RTE_MBUF_TXOFLD_UNUSED_BITS = sizeof(uint64_t) * CHAR_BIT - 543 RTE_MBUF_L2_LEN_BITS - 544 RTE_MBUF_L3_LEN_BITS - 545 RTE_MBUF_L4_LEN_BITS - 546 RTE_MBUF_TSO_SEGSZ_BITS - 547 RTE_MBUF_OUTL3_LEN_BITS - 548 RTE_MBUF_OUTL2_LEN_BITS, 549 #if RTE_BYTE_ORDER == RTE_BIG_ENDIAN 550 RTE_MBUF_L2_LEN_OFS = 551 sizeof(uint64_t) * CHAR_BIT - RTE_MBUF_L2_LEN_BITS, 552 RTE_MBUF_L3_LEN_OFS = RTE_MBUF_L2_LEN_OFS - RTE_MBUF_L3_LEN_BITS, 553 RTE_MBUF_L4_LEN_OFS = RTE_MBUF_L3_LEN_OFS - RTE_MBUF_L4_LEN_BITS, 554 RTE_MBUF_TSO_SEGSZ_OFS = RTE_MBUF_L4_LEN_OFS - RTE_MBUF_TSO_SEGSZ_BITS, 555 RTE_MBUF_OUTL3_LEN_OFS = 556 RTE_MBUF_TSO_SEGSZ_OFS - RTE_MBUF_OUTL3_LEN_BITS, 557 RTE_MBUF_OUTL2_LEN_OFS = 558 RTE_MBUF_OUTL3_LEN_OFS - RTE_MBUF_OUTL2_LEN_BITS, 559 RTE_MBUF_TXOFLD_UNUSED_OFS = 560 RTE_MBUF_OUTL2_LEN_OFS - RTE_MBUF_TXOFLD_UNUSED_BITS, 561 #else 562 RTE_MBUF_L2_LEN_OFS = 0, 563 RTE_MBUF_L3_LEN_OFS = RTE_MBUF_L2_LEN_OFS + RTE_MBUF_L2_LEN_BITS, 564 RTE_MBUF_L4_LEN_OFS = RTE_MBUF_L3_LEN_OFS + RTE_MBUF_L3_LEN_BITS, 565 RTE_MBUF_TSO_SEGSZ_OFS = RTE_MBUF_L4_LEN_OFS + RTE_MBUF_L4_LEN_BITS, 566 RTE_MBUF_OUTL3_LEN_OFS = 567 RTE_MBUF_TSO_SEGSZ_OFS + RTE_MBUF_TSO_SEGSZ_BITS, 568 RTE_MBUF_OUTL2_LEN_OFS = 569 RTE_MBUF_OUTL3_LEN_OFS + RTE_MBUF_OUTL3_LEN_BITS, 570 RTE_MBUF_TXOFLD_UNUSED_OFS = 571 RTE_MBUF_OUTL2_LEN_OFS + RTE_MBUF_OUTL2_LEN_BITS, 572 #endif 573 }; 574 575 /** 576 * The generic rte_mbuf, containing a packet mbuf. 577 */ 578 struct rte_mbuf { 579 RTE_MARKER cacheline0; 580 581 void *buf_addr; /**< Virtual address of segment buffer. */ 582 /** 583 * Physical address of segment buffer. 584 * Force alignment to 8-bytes, so as to ensure we have the exact 585 * same mbuf cacheline0 layout for 32-bit and 64-bit. This makes 586 * working on vector drivers easier. 587 */ 588 rte_iova_t buf_iova __rte_aligned(sizeof(rte_iova_t)); 589 590 /* next 8 bytes are initialised on RX descriptor rearm */ 591 RTE_MARKER64 rearm_data; 592 uint16_t data_off; 593 594 /** 595 * Reference counter. Its size should at least equal to the size 596 * of port field (16 bits), to support zero-copy broadcast. 597 * It should only be accessed using the following functions: 598 * rte_mbuf_refcnt_update(), rte_mbuf_refcnt_read(), and 599 * rte_mbuf_refcnt_set(). The functionality of these functions (atomic, 600 * or non-atomic) is controlled by the RTE_MBUF_REFCNT_ATOMIC flag. 601 */ 602 uint16_t refcnt; 603 604 /** 605 * Number of segments. Only valid for the first segment of an mbuf 606 * chain. 607 */ 608 uint16_t nb_segs; 609 610 /** Input port (16 bits to support more than 256 virtual ports). 611 * The event eth Tx adapter uses this field to specify the output port. 612 */ 613 uint16_t port; 614 615 uint64_t ol_flags; /**< Offload features. */ 616 617 /* remaining bytes are set on RX when pulling packet from descriptor */ 618 RTE_MARKER rx_descriptor_fields1; 619 620 /* 621 * The packet type, which is the combination of outer/inner L2, L3, L4 622 * and tunnel types. The packet_type is about data really present in the 623 * mbuf. Example: if vlan stripping is enabled, a received vlan packet 624 * would have RTE_PTYPE_L2_ETHER and not RTE_PTYPE_L2_VLAN because the 625 * vlan is stripped from the data. 626 */ 627 RTE_STD_C11 628 union { 629 uint32_t packet_type; /**< L2/L3/L4 and tunnel information. */ 630 __extension__ 631 struct { 632 uint8_t l2_type:4; /**< (Outer) L2 type. */ 633 uint8_t l3_type:4; /**< (Outer) L3 type. */ 634 uint8_t l4_type:4; /**< (Outer) L4 type. */ 635 uint8_t tun_type:4; /**< Tunnel type. */ 636 RTE_STD_C11 637 union { 638 uint8_t inner_esp_next_proto; 639 /**< ESP next protocol type, valid if 640 * RTE_PTYPE_TUNNEL_ESP tunnel type is set 641 * on both Tx and Rx. 642 */ 643 __extension__ 644 struct { 645 uint8_t inner_l2_type:4; 646 /**< Inner L2 type. */ 647 uint8_t inner_l3_type:4; 648 /**< Inner L3 type. */ 649 }; 650 }; 651 uint8_t inner_l4_type:4; /**< Inner L4 type. */ 652 }; 653 }; 654 655 uint32_t pkt_len; /**< Total pkt len: sum of all segments. */ 656 uint16_t data_len; /**< Amount of data in segment buffer. */ 657 /** VLAN TCI (CPU order), valid if RTE_MBUF_F_RX_VLAN is set. */ 658 uint16_t vlan_tci; 659 660 RTE_STD_C11 661 union { 662 union { 663 uint32_t rss; /**< RSS hash result if RSS enabled */ 664 struct { 665 union { 666 struct { 667 uint16_t hash; 668 uint16_t id; 669 }; 670 uint32_t lo; 671 /**< Second 4 flexible bytes */ 672 }; 673 uint32_t hi; 674 /**< First 4 flexible bytes or FD ID, dependent 675 * on RTE_MBUF_F_RX_FDIR_* flag in ol_flags. 676 */ 677 } fdir; /**< Filter identifier if FDIR enabled */ 678 struct rte_mbuf_sched sched; 679 /**< Hierarchical scheduler : 8 bytes */ 680 struct { 681 uint32_t reserved1; 682 uint16_t reserved2; 683 uint16_t txq; 684 /**< The event eth Tx adapter uses this field 685 * to store Tx queue id. 686 * @see rte_event_eth_tx_adapter_txq_set() 687 */ 688 } txadapter; /**< Eventdev ethdev Tx adapter */ 689 /**< User defined tags. See rte_distributor_process() */ 690 uint32_t usr; 691 } hash; /**< hash information */ 692 }; 693 694 /** Outer VLAN TCI (CPU order), valid if RTE_MBUF_F_RX_QINQ is set. */ 695 uint16_t vlan_tci_outer; 696 697 uint16_t buf_len; /**< Length of segment buffer. */ 698 699 struct rte_mempool *pool; /**< Pool from which mbuf was allocated. */ 700 701 /* second cache line - fields only used in slow path or on TX */ 702 RTE_MARKER cacheline1 __rte_cache_min_aligned; 703 704 /** 705 * Next segment of scattered packet. Must be NULL in the last segment or 706 * in case of non-segmented packet. 707 */ 708 struct rte_mbuf *next; 709 710 /* fields to support TX offloads */ 711 RTE_STD_C11 712 union { 713 uint64_t tx_offload; /**< combined for easy fetch */ 714 __extension__ 715 struct { 716 uint64_t l2_len:RTE_MBUF_L2_LEN_BITS; 717 /**< L2 (MAC) Header Length for non-tunneling pkt. 718 * Outer_L4_len + ... + Inner_L2_len for tunneling pkt. 719 */ 720 uint64_t l3_len:RTE_MBUF_L3_LEN_BITS; 721 /**< L3 (IP) Header Length. */ 722 uint64_t l4_len:RTE_MBUF_L4_LEN_BITS; 723 /**< L4 (TCP/UDP) Header Length. */ 724 uint64_t tso_segsz:RTE_MBUF_TSO_SEGSZ_BITS; 725 /**< TCP TSO segment size */ 726 727 /* 728 * Fields for Tx offloading of tunnels. 729 * These are undefined for packets which don't request 730 * any tunnel offloads (outer IP or UDP checksum, 731 * tunnel TSO). 732 * 733 * PMDs should not use these fields unconditionally 734 * when calculating offsets. 735 * 736 * Applications are expected to set appropriate tunnel 737 * offload flags when they fill in these fields. 738 */ 739 uint64_t outer_l3_len:RTE_MBUF_OUTL3_LEN_BITS; 740 /**< Outer L3 (IP) Hdr Length. */ 741 uint64_t outer_l2_len:RTE_MBUF_OUTL2_LEN_BITS; 742 /**< Outer L2 (MAC) Hdr Length. */ 743 744 /* uint64_t unused:RTE_MBUF_TXOFLD_UNUSED_BITS; */ 745 }; 746 }; 747 748 /** Shared data for external buffer attached to mbuf. See 749 * rte_pktmbuf_attach_extbuf(). 750 */ 751 struct rte_mbuf_ext_shared_info *shinfo; 752 753 /** Size of the application private data. In case of an indirect 754 * mbuf, it stores the direct mbuf private data size. 755 */ 756 uint16_t priv_size; 757 758 /** Timesync flags for use with IEEE1588. */ 759 uint16_t timesync; 760 761 uint32_t dynfield1[9]; /**< Reserved for dynamic fields. */ 762 } __rte_cache_aligned; 763 764 /** 765 * Function typedef of callback to free externally attached buffer. 766 */ 767 typedef void (*rte_mbuf_extbuf_free_callback_t)(void *addr, void *opaque); 768 769 /** 770 * Shared data at the end of an external buffer. 771 */ 772 struct rte_mbuf_ext_shared_info { 773 rte_mbuf_extbuf_free_callback_t free_cb; /**< Free callback function */ 774 void *fcb_opaque; /**< Free callback argument */ 775 uint16_t refcnt; 776 }; 777 778 /** Maximum number of nb_segs allowed. */ 779 #define RTE_MBUF_MAX_NB_SEGS UINT16_MAX 780 781 /** 782 * Returns TRUE if given mbuf is cloned by mbuf indirection, or FALSE 783 * otherwise. 784 * 785 * If a mbuf has its data in another mbuf and references it by mbuf 786 * indirection, this mbuf can be defined as a cloned mbuf. 787 */ 788 #define RTE_MBUF_CLONED(mb) ((mb)->ol_flags & RTE_MBUF_F_INDIRECT) 789 790 /** 791 * Returns TRUE if given mbuf has an external buffer, or FALSE otherwise. 792 * 793 * External buffer is a user-provided anonymous buffer. 794 */ 795 #define RTE_MBUF_HAS_EXTBUF(mb) ((mb)->ol_flags & RTE_MBUF_F_EXTERNAL) 796 797 /** 798 * Returns TRUE if given mbuf is direct, or FALSE otherwise. 799 * 800 * If a mbuf embeds its own data after the rte_mbuf structure, this mbuf 801 * can be defined as a direct mbuf. 802 */ 803 #define RTE_MBUF_DIRECT(mb) \ 804 (!((mb)->ol_flags & (RTE_MBUF_F_INDIRECT | RTE_MBUF_F_EXTERNAL))) 805 806 /** Uninitialized or unspecified port. */ 807 #define RTE_MBUF_PORT_INVALID UINT16_MAX 808 /** For backwards compatibility. */ 809 #define MBUF_INVALID_PORT RTE_MBUF_PORT_INVALID 810 811 /** 812 * A macro that points to an offset into the data in the mbuf. 813 * 814 * The returned pointer is cast to type t. Before using this 815 * function, the user must ensure that the first segment is large 816 * enough to accommodate its data. 817 * 818 * @param m 819 * The packet mbuf. 820 * @param o 821 * The offset into the mbuf data. 822 * @param t 823 * The type to cast the result into. 824 */ 825 #define rte_pktmbuf_mtod_offset(m, t, o) \ 826 ((t)(void *)((char *)(m)->buf_addr + (m)->data_off + (o))) 827 828 /** 829 * A macro that points to the start of the data in the mbuf. 830 * 831 * The returned pointer is cast to type t. Before using this 832 * function, the user must ensure that the first segment is large 833 * enough to accommodate its data. 834 * 835 * @param m 836 * The packet mbuf. 837 * @param t 838 * The type to cast the result into. 839 */ 840 #define rte_pktmbuf_mtod(m, t) rte_pktmbuf_mtod_offset(m, t, 0) 841 842 /** 843 * A macro that returns the IO address that points to an offset of the 844 * start of the data in the mbuf 845 * 846 * @param m 847 * The packet mbuf. 848 * @param o 849 * The offset into the data to calculate address from. 850 */ 851 #define rte_pktmbuf_iova_offset(m, o) \ 852 (rte_iova_t)((m)->buf_iova + (m)->data_off + (o)) 853 854 /** 855 * A macro that returns the IO address that points to the start of the 856 * data in the mbuf 857 * 858 * @param m 859 * The packet mbuf. 860 */ 861 #define rte_pktmbuf_iova(m) rte_pktmbuf_iova_offset(m, 0) 862 863 #ifdef __cplusplus 864 } 865 #endif 866 867 #endif /* _RTE_MBUF_CORE_H_ */ 868