1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2010-2017 Intel Corporation 3 */ 4 5 #ifndef _RTE_ETHDEV_H_ 6 #define _RTE_ETHDEV_H_ 7 8 /** 9 * @file 10 * 11 * RTE Ethernet Device API 12 * 13 * The Ethernet Device API is composed of two parts: 14 * 15 * - The application-oriented Ethernet API that includes functions to setup 16 * an Ethernet device (configure it, setup its Rx and Tx queues and start it), 17 * to get its MAC address, the speed and the status of its physical link, 18 * to receive and to transmit packets, and so on. 19 * 20 * - The driver-oriented Ethernet API that exports functions allowing 21 * an Ethernet Poll Mode Driver (PMD) to allocate an Ethernet device instance, 22 * create memzone for HW rings and process registered callbacks, and so on. 23 * PMDs should include ethdev_driver.h instead of this header. 24 * 25 * By default, all the functions of the Ethernet Device API exported by a PMD 26 * are lock-free functions which assume to not be invoked in parallel on 27 * different logical cores to work on the same target object. For instance, 28 * the receive function of a PMD cannot be invoked in parallel on two logical 29 * cores to poll the same Rx queue [of the same port]. Of course, this function 30 * can be invoked in parallel by different logical cores on different Rx queues. 31 * It is the responsibility of the upper level application to enforce this rule. 32 * 33 * If needed, parallel accesses by multiple logical cores to shared queues 34 * shall be explicitly protected by dedicated inline lock-aware functions 35 * built on top of their corresponding lock-free functions of the PMD API. 36 * 37 * In all functions of the Ethernet API, the Ethernet device is 38 * designated by an integer >= 0 named the device port identifier. 39 * 40 * At the Ethernet driver level, Ethernet devices are represented by a generic 41 * data structure of type *rte_eth_dev*. 42 * 43 * Ethernet devices are dynamically registered during the PCI probing phase 44 * performed at EAL initialization time. 45 * When an Ethernet device is being probed, an *rte_eth_dev* structure and 46 * a new port identifier are allocated for that device. Then, the eth_dev_init() 47 * function supplied by the Ethernet driver matching the probed PCI 48 * device is invoked to properly initialize the device. 49 * 50 * The role of the device init function consists of resetting the hardware, 51 * checking access to Non-volatile Memory (NVM), reading the MAC address 52 * from NVM etc. 53 * 54 * If the device init operation is successful, the correspondence between 55 * the port identifier assigned to the new device and its associated 56 * *rte_eth_dev* structure is effectively registered. 57 * Otherwise, both the *rte_eth_dev* structure and the port identifier are 58 * freed. 59 * 60 * The functions exported by the application Ethernet API to setup a device 61 * designated by its port identifier must be invoked in the following order: 62 * - rte_eth_dev_configure() 63 * - rte_eth_tx_queue_setup() 64 * - rte_eth_rx_queue_setup() 65 * - rte_eth_dev_start() 66 * 67 * Then, the network application can invoke, in any order, the functions 68 * exported by the Ethernet API to get the MAC address of a given device, to 69 * get the speed and the status of a device physical link, to receive/transmit 70 * [burst of] packets, and so on. 71 * 72 * If the application wants to change the configuration (i.e. call 73 * rte_eth_dev_configure(), rte_eth_tx_queue_setup(), or 74 * rte_eth_rx_queue_setup()), it must call rte_eth_dev_stop() first to stop the 75 * device and then do the reconfiguration before calling rte_eth_dev_start() 76 * again. The transmit and receive functions should not be invoked when the 77 * device is stopped. 78 * 79 * Please note that some configuration is not stored between calls to 80 * rte_eth_dev_stop()/rte_eth_dev_start(). The following configuration will 81 * be retained: 82 * 83 * - MTU 84 * - flow control settings 85 * - receive mode configuration (promiscuous mode, all-multicast mode, 86 * hardware checksum mode, RSS/VMDq settings etc.) 87 * - VLAN filtering configuration 88 * - default MAC address 89 * - MAC addresses supplied to MAC address array 90 * - flow director filtering mode (but not filtering rules) 91 * - NIC queue statistics mappings 92 * 93 * The following configuration may be retained or not 94 * depending on the device capabilities: 95 * 96 * - flow rules 97 * - flow-related shared objects, e.g. indirect actions 98 * 99 * Any other configuration will not be stored and will need to be re-entered 100 * before a call to rte_eth_dev_start(). 101 * 102 * Finally, a network application can close an Ethernet device by invoking the 103 * rte_eth_dev_close() function. 104 * 105 * Each function of the application Ethernet API invokes a specific function 106 * of the PMD that controls the target device designated by its port 107 * identifier. 108 * For this purpose, all device-specific functions of an Ethernet driver are 109 * supplied through a set of pointers contained in a generic structure of type 110 * *eth_dev_ops*. 111 * The address of the *eth_dev_ops* structure is stored in the *rte_eth_dev* 112 * structure by the device init function of the Ethernet driver, which is 113 * invoked during the PCI probing phase, as explained earlier. 114 * 115 * In other words, each function of the Ethernet API simply retrieves the 116 * *rte_eth_dev* structure associated with the device port identifier and 117 * performs an indirect invocation of the corresponding driver function 118 * supplied in the *eth_dev_ops* structure of the *rte_eth_dev* structure. 119 * 120 * For performance reasons, the address of the burst-oriented Rx and Tx 121 * functions of the Ethernet driver are not contained in the *eth_dev_ops* 122 * structure. Instead, they are directly stored at the beginning of the 123 * *rte_eth_dev* structure to avoid an extra indirect memory access during 124 * their invocation. 125 * 126 * RTE Ethernet device drivers do not use interrupts for transmitting or 127 * receiving. Instead, Ethernet drivers export Poll-Mode receive and transmit 128 * functions to applications. 129 * Both receive and transmit functions are packet-burst oriented to minimize 130 * their cost per packet through the following optimizations: 131 * 132 * - Sharing among multiple packets the incompressible cost of the 133 * invocation of receive/transmit functions. 134 * 135 * - Enabling receive/transmit functions to take advantage of burst-oriented 136 * hardware features (L1 cache, prefetch instructions, NIC head/tail 137 * registers) to minimize the number of CPU cycles per packet, for instance, 138 * by avoiding useless read memory accesses to ring descriptors, or by 139 * systematically using arrays of pointers that exactly fit L1 cache line 140 * boundaries and sizes. 141 * 142 * The burst-oriented receive function does not provide any error notification, 143 * to avoid the corresponding overhead. As a hint, the upper-level application 144 * might check the status of the device link once being systematically returned 145 * a 0 value by the receive function of the driver for a given number of tries. 146 */ 147 148 #ifdef __cplusplus 149 extern "C" { 150 #endif 151 152 #include <stdint.h> 153 154 /* Use this macro to check if LRO API is supported */ 155 #define RTE_ETHDEV_HAS_LRO_SUPPORT 156 157 /* Alias RTE_LIBRTE_ETHDEV_DEBUG for backward compatibility. */ 158 #ifdef RTE_LIBRTE_ETHDEV_DEBUG 159 #define RTE_ETHDEV_DEBUG_RX 160 #define RTE_ETHDEV_DEBUG_TX 161 #endif 162 163 #include <rte_compat.h> 164 #include <rte_log.h> 165 #include <rte_interrupts.h> 166 #include <rte_dev.h> 167 #include <rte_devargs.h> 168 #include <rte_bitops.h> 169 #include <rte_errno.h> 170 #include <rte_common.h> 171 #include <rte_config.h> 172 #include <rte_ether.h> 173 #include <rte_power_intrinsics.h> 174 175 #include "rte_ethdev_trace_fp.h" 176 #include "rte_dev_info.h" 177 178 extern int rte_eth_dev_logtype; 179 180 #define RTE_ETHDEV_LOG(level, ...) \ 181 rte_log(RTE_LOG_ ## level, rte_eth_dev_logtype, "" __VA_ARGS__) 182 183 struct rte_mbuf; 184 185 /** 186 * Initializes a device iterator. 187 * 188 * This iterator allows accessing a list of devices matching some devargs. 189 * 190 * @param iter 191 * Device iterator handle initialized by the function. 192 * The fields bus_str and cls_str might be dynamically allocated, 193 * and could be freed by calling rte_eth_iterator_cleanup(). 194 * 195 * @param devargs 196 * Device description string. 197 * 198 * @return 199 * 0 on successful initialization, negative otherwise. 200 */ 201 int rte_eth_iterator_init(struct rte_dev_iterator *iter, const char *devargs); 202 203 /** 204 * Iterates on devices with devargs filter. 205 * The ownership is not checked. 206 * 207 * The next port ID is returned, and the iterator is updated. 208 * 209 * @param iter 210 * Device iterator handle initialized by rte_eth_iterator_init(). 211 * Some fields bus_str and cls_str might be freed when no more port is found, 212 * by calling rte_eth_iterator_cleanup(). 213 * 214 * @return 215 * A port ID if found, RTE_MAX_ETHPORTS otherwise. 216 */ 217 uint16_t rte_eth_iterator_next(struct rte_dev_iterator *iter); 218 219 /** 220 * Free some allocated fields of the iterator. 221 * 222 * This function is automatically called by rte_eth_iterator_next() 223 * on the last iteration (i.e. when no more matching port is found). 224 * 225 * It is safe to call this function twice; it will do nothing more. 226 * 227 * @param iter 228 * Device iterator handle initialized by rte_eth_iterator_init(). 229 * The fields bus_str and cls_str are freed if needed. 230 */ 231 void rte_eth_iterator_cleanup(struct rte_dev_iterator *iter); 232 233 /** 234 * Macro to iterate over all ethdev ports matching some devargs. 235 * 236 * If a break is done before the end of the loop, 237 * the function rte_eth_iterator_cleanup() must be called. 238 * 239 * @param id 240 * Iterated port ID of type uint16_t. 241 * @param devargs 242 * Device parameters input as string of type char*. 243 * @param iter 244 * Iterator handle of type struct rte_dev_iterator, used internally. 245 */ 246 #define RTE_ETH_FOREACH_MATCHING_DEV(id, devargs, iter) \ 247 for (rte_eth_iterator_init(iter, devargs), \ 248 id = rte_eth_iterator_next(iter); \ 249 id != RTE_MAX_ETHPORTS; \ 250 id = rte_eth_iterator_next(iter)) 251 252 /** 253 * A structure used to retrieve statistics for an Ethernet port. 254 * Not all statistics fields in struct rte_eth_stats are supported 255 * by any type of network interface card (NIC). If any statistics 256 * field is not supported, its value is 0. 257 * All byte-related statistics do not include Ethernet FCS regardless 258 * of whether these bytes have been delivered to the application 259 * (see RTE_ETH_RX_OFFLOAD_KEEP_CRC). 260 */ 261 struct rte_eth_stats { 262 uint64_t ipackets; /**< Total number of successfully received packets. */ 263 uint64_t opackets; /**< Total number of successfully transmitted packets.*/ 264 uint64_t ibytes; /**< Total number of successfully received bytes. */ 265 uint64_t obytes; /**< Total number of successfully transmitted bytes. */ 266 /** 267 * Total of Rx packets dropped by the HW, 268 * because there are no available buffer (i.e. Rx queues are full). 269 */ 270 uint64_t imissed; 271 uint64_t ierrors; /**< Total number of erroneous received packets. */ 272 uint64_t oerrors; /**< Total number of failed transmitted packets. */ 273 uint64_t rx_nombuf; /**< Total number of Rx mbuf allocation failures. */ 274 /* Queue stats are limited to max 256 queues */ 275 /** Total number of queue Rx packets. */ 276 uint64_t q_ipackets[RTE_ETHDEV_QUEUE_STAT_CNTRS]; 277 /** Total number of queue Tx packets. */ 278 uint64_t q_opackets[RTE_ETHDEV_QUEUE_STAT_CNTRS]; 279 /** Total number of successfully received queue bytes. */ 280 uint64_t q_ibytes[RTE_ETHDEV_QUEUE_STAT_CNTRS]; 281 /** Total number of successfully transmitted queue bytes. */ 282 uint64_t q_obytes[RTE_ETHDEV_QUEUE_STAT_CNTRS]; 283 /** Total number of queue packets received that are dropped. */ 284 uint64_t q_errors[RTE_ETHDEV_QUEUE_STAT_CNTRS]; 285 }; 286 287 /**@{@name Link speed capabilities 288 * Device supported speeds bitmap flags 289 */ 290 #define RTE_ETH_LINK_SPEED_AUTONEG 0 /**< Autonegotiate (all speeds) */ 291 #define ETH_LINK_SPEED_AUTONEG RTE_ETH_LINK_SPEED_AUTONEG 292 #define RTE_ETH_LINK_SPEED_FIXED RTE_BIT32(0) /**< Disable autoneg (fixed speed) */ 293 #define ETH_LINK_SPEED_FIXED RTE_ETH_LINK_SPEED_FIXED 294 #define RTE_ETH_LINK_SPEED_10M_HD RTE_BIT32(1) /**< 10 Mbps half-duplex */ 295 #define ETH_LINK_SPEED_10M_HD RTE_ETH_LINK_SPEED_10M_HD 296 #define RTE_ETH_LINK_SPEED_10M RTE_BIT32(2) /**< 10 Mbps full-duplex */ 297 #define ETH_LINK_SPEED_10M RTE_ETH_LINK_SPEED_10M 298 #define RTE_ETH_LINK_SPEED_100M_HD RTE_BIT32(3) /**< 100 Mbps half-duplex */ 299 #define ETH_LINK_SPEED_100M_HD RTE_ETH_LINK_SPEED_100M_HD 300 #define RTE_ETH_LINK_SPEED_100M RTE_BIT32(4) /**< 100 Mbps full-duplex */ 301 #define ETH_LINK_SPEED_100M RTE_ETH_LINK_SPEED_100M 302 #define RTE_ETH_LINK_SPEED_1G RTE_BIT32(5) /**< 1 Gbps */ 303 #define ETH_LINK_SPEED_1G RTE_ETH_LINK_SPEED_1G 304 #define RTE_ETH_LINK_SPEED_2_5G RTE_BIT32(6) /**< 2.5 Gbps */ 305 #define ETH_LINK_SPEED_2_5G RTE_ETH_LINK_SPEED_2_5G 306 #define RTE_ETH_LINK_SPEED_5G RTE_BIT32(7) /**< 5 Gbps */ 307 #define ETH_LINK_SPEED_5G RTE_ETH_LINK_SPEED_5G 308 #define RTE_ETH_LINK_SPEED_10G RTE_BIT32(8) /**< 10 Gbps */ 309 #define ETH_LINK_SPEED_10G RTE_ETH_LINK_SPEED_10G 310 #define RTE_ETH_LINK_SPEED_20G RTE_BIT32(9) /**< 20 Gbps */ 311 #define ETH_LINK_SPEED_20G RTE_ETH_LINK_SPEED_20G 312 #define RTE_ETH_LINK_SPEED_25G RTE_BIT32(10) /**< 25 Gbps */ 313 #define ETH_LINK_SPEED_25G RTE_ETH_LINK_SPEED_25G 314 #define RTE_ETH_LINK_SPEED_40G RTE_BIT32(11) /**< 40 Gbps */ 315 #define ETH_LINK_SPEED_40G RTE_ETH_LINK_SPEED_40G 316 #define RTE_ETH_LINK_SPEED_50G RTE_BIT32(12) /**< 50 Gbps */ 317 #define ETH_LINK_SPEED_50G RTE_ETH_LINK_SPEED_50G 318 #define RTE_ETH_LINK_SPEED_56G RTE_BIT32(13) /**< 56 Gbps */ 319 #define ETH_LINK_SPEED_56G RTE_ETH_LINK_SPEED_56G 320 #define RTE_ETH_LINK_SPEED_100G RTE_BIT32(14) /**< 100 Gbps */ 321 #define ETH_LINK_SPEED_100G RTE_ETH_LINK_SPEED_100G 322 #define RTE_ETH_LINK_SPEED_200G RTE_BIT32(15) /**< 200 Gbps */ 323 #define ETH_LINK_SPEED_200G RTE_ETH_LINK_SPEED_200G 324 /**@}*/ 325 326 /**@{@name Link speed 327 * Ethernet numeric link speeds in Mbps 328 */ 329 #define RTE_ETH_SPEED_NUM_NONE 0 /**< Not defined */ 330 #define ETH_SPEED_NUM_NONE RTE_ETH_SPEED_NUM_NONE 331 #define RTE_ETH_SPEED_NUM_10M 10 /**< 10 Mbps */ 332 #define ETH_SPEED_NUM_10M RTE_ETH_SPEED_NUM_10M 333 #define RTE_ETH_SPEED_NUM_100M 100 /**< 100 Mbps */ 334 #define ETH_SPEED_NUM_100M RTE_ETH_SPEED_NUM_100M 335 #define RTE_ETH_SPEED_NUM_1G 1000 /**< 1 Gbps */ 336 #define ETH_SPEED_NUM_1G RTE_ETH_SPEED_NUM_1G 337 #define RTE_ETH_SPEED_NUM_2_5G 2500 /**< 2.5 Gbps */ 338 #define ETH_SPEED_NUM_2_5G RTE_ETH_SPEED_NUM_2_5G 339 #define RTE_ETH_SPEED_NUM_5G 5000 /**< 5 Gbps */ 340 #define ETH_SPEED_NUM_5G RTE_ETH_SPEED_NUM_5G 341 #define RTE_ETH_SPEED_NUM_10G 10000 /**< 10 Gbps */ 342 #define ETH_SPEED_NUM_10G RTE_ETH_SPEED_NUM_10G 343 #define RTE_ETH_SPEED_NUM_20G 20000 /**< 20 Gbps */ 344 #define ETH_SPEED_NUM_20G RTE_ETH_SPEED_NUM_20G 345 #define RTE_ETH_SPEED_NUM_25G 25000 /**< 25 Gbps */ 346 #define ETH_SPEED_NUM_25G RTE_ETH_SPEED_NUM_25G 347 #define RTE_ETH_SPEED_NUM_40G 40000 /**< 40 Gbps */ 348 #define ETH_SPEED_NUM_40G RTE_ETH_SPEED_NUM_40G 349 #define RTE_ETH_SPEED_NUM_50G 50000 /**< 50 Gbps */ 350 #define ETH_SPEED_NUM_50G RTE_ETH_SPEED_NUM_50G 351 #define RTE_ETH_SPEED_NUM_56G 56000 /**< 56 Gbps */ 352 #define ETH_SPEED_NUM_56G RTE_ETH_SPEED_NUM_56G 353 #define RTE_ETH_SPEED_NUM_100G 100000 /**< 100 Gbps */ 354 #define ETH_SPEED_NUM_100G RTE_ETH_SPEED_NUM_100G 355 #define RTE_ETH_SPEED_NUM_200G 200000 /**< 200 Gbps */ 356 #define ETH_SPEED_NUM_200G RTE_ETH_SPEED_NUM_200G 357 #define RTE_ETH_SPEED_NUM_UNKNOWN UINT32_MAX /**< Unknown */ 358 #define ETH_SPEED_NUM_UNKNOWN RTE_ETH_SPEED_NUM_UNKNOWN 359 /**@}*/ 360 361 /** 362 * A structure used to retrieve link-level information of an Ethernet port. 363 */ 364 __extension__ 365 struct rte_eth_link { 366 uint32_t link_speed; /**< RTE_ETH_SPEED_NUM_ */ 367 uint16_t link_duplex : 1; /**< RTE_ETH_LINK_[HALF/FULL]_DUPLEX */ 368 uint16_t link_autoneg : 1; /**< RTE_ETH_LINK_[AUTONEG/FIXED] */ 369 uint16_t link_status : 1; /**< RTE_ETH_LINK_[DOWN/UP] */ 370 } __rte_aligned(8); /**< aligned for atomic64 read/write */ 371 372 /**@{@name Link negotiation 373 * Constants used in link management. 374 */ 375 #define RTE_ETH_LINK_HALF_DUPLEX 0 /**< Half-duplex connection (see link_duplex). */ 376 #define ETH_LINK_HALF_DUPLEX RTE_ETH_LINK_HALF_DUPLEX 377 #define RTE_ETH_LINK_FULL_DUPLEX 1 /**< Full-duplex connection (see link_duplex). */ 378 #define ETH_LINK_FULL_DUPLEX RTE_ETH_LINK_FULL_DUPLEX 379 #define RTE_ETH_LINK_DOWN 0 /**< Link is down (see link_status). */ 380 #define ETH_LINK_DOWN RTE_ETH_LINK_DOWN 381 #define RTE_ETH_LINK_UP 1 /**< Link is up (see link_status). */ 382 #define ETH_LINK_UP RTE_ETH_LINK_UP 383 #define RTE_ETH_LINK_FIXED 0 /**< No autonegotiation (see link_autoneg). */ 384 #define ETH_LINK_FIXED RTE_ETH_LINK_FIXED 385 #define RTE_ETH_LINK_AUTONEG 1 /**< Autonegotiated (see link_autoneg). */ 386 #define ETH_LINK_AUTONEG RTE_ETH_LINK_AUTONEG 387 #define RTE_ETH_LINK_MAX_STR_LEN 40 /**< Max length of default link string. */ 388 /**@}*/ 389 390 /** 391 * A structure used to configure the ring threshold registers of an Rx/Tx 392 * queue for an Ethernet port. 393 */ 394 struct rte_eth_thresh { 395 uint8_t pthresh; /**< Ring prefetch threshold. */ 396 uint8_t hthresh; /**< Ring host threshold. */ 397 uint8_t wthresh; /**< Ring writeback threshold. */ 398 }; 399 400 /**@{@name Multi-queue mode 401 * @see rte_eth_conf.rxmode.mq_mode. 402 */ 403 #define RTE_ETH_MQ_RX_RSS_FLAG RTE_BIT32(0) /**< Enable RSS. @see rte_eth_rss_conf */ 404 #define ETH_MQ_RX_RSS_FLAG RTE_ETH_MQ_RX_RSS_FLAG 405 #define RTE_ETH_MQ_RX_DCB_FLAG RTE_BIT32(1) /**< Enable DCB. */ 406 #define ETH_MQ_RX_DCB_FLAG RTE_ETH_MQ_RX_DCB_FLAG 407 #define RTE_ETH_MQ_RX_VMDQ_FLAG RTE_BIT32(2) /**< Enable VMDq. */ 408 #define ETH_MQ_RX_VMDQ_FLAG RTE_ETH_MQ_RX_VMDQ_FLAG 409 /**@}*/ 410 411 /** 412 * A set of values to identify what method is to be used to route 413 * packets to multiple queues. 414 */ 415 enum rte_eth_rx_mq_mode { 416 /** None of DCB, RSS or VMDq mode */ 417 RTE_ETH_MQ_RX_NONE = 0, 418 419 /** For Rx side, only RSS is on */ 420 RTE_ETH_MQ_RX_RSS = RTE_ETH_MQ_RX_RSS_FLAG, 421 /** For Rx side,only DCB is on. */ 422 RTE_ETH_MQ_RX_DCB = RTE_ETH_MQ_RX_DCB_FLAG, 423 /** Both DCB and RSS enable */ 424 RTE_ETH_MQ_RX_DCB_RSS = RTE_ETH_MQ_RX_RSS_FLAG | RTE_ETH_MQ_RX_DCB_FLAG, 425 426 /** Only VMDq, no RSS nor DCB */ 427 RTE_ETH_MQ_RX_VMDQ_ONLY = RTE_ETH_MQ_RX_VMDQ_FLAG, 428 /** RSS mode with VMDq */ 429 RTE_ETH_MQ_RX_VMDQ_RSS = RTE_ETH_MQ_RX_RSS_FLAG | RTE_ETH_MQ_RX_VMDQ_FLAG, 430 /** Use VMDq+DCB to route traffic to queues */ 431 RTE_ETH_MQ_RX_VMDQ_DCB = RTE_ETH_MQ_RX_VMDQ_FLAG | RTE_ETH_MQ_RX_DCB_FLAG, 432 /** Enable both VMDq and DCB in VMDq */ 433 RTE_ETH_MQ_RX_VMDQ_DCB_RSS = RTE_ETH_MQ_RX_RSS_FLAG | RTE_ETH_MQ_RX_DCB_FLAG | 434 RTE_ETH_MQ_RX_VMDQ_FLAG, 435 }; 436 437 #define ETH_MQ_RX_NONE RTE_ETH_MQ_RX_NONE 438 #define ETH_MQ_RX_RSS RTE_ETH_MQ_RX_RSS 439 #define ETH_MQ_RX_DCB RTE_ETH_MQ_RX_DCB 440 #define ETH_MQ_RX_DCB_RSS RTE_ETH_MQ_RX_DCB_RSS 441 #define ETH_MQ_RX_VMDQ_ONLY RTE_ETH_MQ_RX_VMDQ_ONLY 442 #define ETH_MQ_RX_VMDQ_RSS RTE_ETH_MQ_RX_VMDQ_RSS 443 #define ETH_MQ_RX_VMDQ_DCB RTE_ETH_MQ_RX_VMDQ_DCB 444 #define ETH_MQ_RX_VMDQ_DCB_RSS RTE_ETH_MQ_RX_VMDQ_DCB_RSS 445 446 /** 447 * A set of values to identify what method is to be used to transmit 448 * packets using multi-TCs. 449 */ 450 enum rte_eth_tx_mq_mode { 451 RTE_ETH_MQ_TX_NONE = 0, /**< It is in neither DCB nor VT mode. */ 452 RTE_ETH_MQ_TX_DCB, /**< For Tx side,only DCB is on. */ 453 RTE_ETH_MQ_TX_VMDQ_DCB, /**< For Tx side,both DCB and VT is on. */ 454 RTE_ETH_MQ_TX_VMDQ_ONLY, /**< Only VT on, no DCB */ 455 }; 456 #define ETH_MQ_TX_NONE RTE_ETH_MQ_TX_NONE 457 #define ETH_MQ_TX_DCB RTE_ETH_MQ_TX_DCB 458 #define ETH_MQ_TX_VMDQ_DCB RTE_ETH_MQ_TX_VMDQ_DCB 459 #define ETH_MQ_TX_VMDQ_ONLY RTE_ETH_MQ_TX_VMDQ_ONLY 460 461 /** 462 * A structure used to configure the Rx features of an Ethernet port. 463 */ 464 struct rte_eth_rxmode { 465 /** The multi-queue packet distribution mode to be used, e.g. RSS. */ 466 enum rte_eth_rx_mq_mode mq_mode; 467 uint32_t mtu; /**< Requested MTU. */ 468 /** Maximum allowed size of LRO aggregated packet. */ 469 uint32_t max_lro_pkt_size; 470 uint16_t split_hdr_size; /**< hdr buf size (header_split enabled).*/ 471 /** 472 * Per-port Rx offloads to be set using RTE_ETH_RX_OFFLOAD_* flags. 473 * Only offloads set on rx_offload_capa field on rte_eth_dev_info 474 * structure are allowed to be set. 475 */ 476 uint64_t offloads; 477 478 uint64_t reserved_64s[2]; /**< Reserved for future fields */ 479 void *reserved_ptrs[2]; /**< Reserved for future fields */ 480 }; 481 482 /** 483 * VLAN types to indicate if it is for single VLAN, inner VLAN or outer VLAN. 484 * Note that single VLAN is treated the same as inner VLAN. 485 */ 486 enum rte_vlan_type { 487 RTE_ETH_VLAN_TYPE_UNKNOWN = 0, 488 RTE_ETH_VLAN_TYPE_INNER, /**< Inner VLAN. */ 489 RTE_ETH_VLAN_TYPE_OUTER, /**< Single VLAN, or outer VLAN. */ 490 RTE_ETH_VLAN_TYPE_MAX, 491 }; 492 493 #define ETH_VLAN_TYPE_UNKNOWN RTE_ETH_VLAN_TYPE_UNKNOWN 494 #define ETH_VLAN_TYPE_INNER RTE_ETH_VLAN_TYPE_INNER 495 #define ETH_VLAN_TYPE_OUTER RTE_ETH_VLAN_TYPE_OUTER 496 #define ETH_VLAN_TYPE_MAX RTE_ETH_VLAN_TYPE_MAX 497 498 /** 499 * A structure used to describe a VLAN filter. 500 * If the bit corresponding to a VID is set, such VID is on. 501 */ 502 struct rte_vlan_filter_conf { 503 uint64_t ids[64]; 504 }; 505 506 /** 507 * A structure used to configure the Receive Side Scaling (RSS) feature 508 * of an Ethernet port. 509 * If not NULL, the *rss_key* pointer of the *rss_conf* structure points 510 * to an array holding the RSS key to use for hashing specific header 511 * fields of received packets. The length of this array should be indicated 512 * by *rss_key_len* below. Otherwise, a default random hash key is used by 513 * the device driver. 514 * 515 * The *rss_key_len* field of the *rss_conf* structure indicates the length 516 * in bytes of the array pointed by *rss_key*. To be compatible, this length 517 * will be checked in i40e only. Others assume 40 bytes to be used as before. 518 * 519 * The *rss_hf* field of the *rss_conf* structure indicates the different 520 * types of IPv4/IPv6 packets to which the RSS hashing must be applied. 521 * Supplying an *rss_hf* equal to zero disables the RSS feature. 522 */ 523 struct rte_eth_rss_conf { 524 uint8_t *rss_key; /**< If not NULL, 40-byte hash key. */ 525 uint8_t rss_key_len; /**< hash key length in bytes. */ 526 uint64_t rss_hf; /**< Hash functions to apply - see below. */ 527 }; 528 529 /* 530 * A packet can be identified by hardware as different flow types. Different 531 * NIC hardware may support different flow types. 532 * Basically, the NIC hardware identifies the flow type as deep protocol as 533 * possible, and exclusively. For example, if a packet is identified as 534 * 'RTE_ETH_FLOW_NONFRAG_IPV4_TCP', it will not be any of other flow types, 535 * though it is an actual IPV4 packet. 536 */ 537 #define RTE_ETH_FLOW_UNKNOWN 0 538 #define RTE_ETH_FLOW_RAW 1 539 #define RTE_ETH_FLOW_IPV4 2 540 #define RTE_ETH_FLOW_FRAG_IPV4 3 541 #define RTE_ETH_FLOW_NONFRAG_IPV4_TCP 4 542 #define RTE_ETH_FLOW_NONFRAG_IPV4_UDP 5 543 #define RTE_ETH_FLOW_NONFRAG_IPV4_SCTP 6 544 #define RTE_ETH_FLOW_NONFRAG_IPV4_OTHER 7 545 #define RTE_ETH_FLOW_IPV6 8 546 #define RTE_ETH_FLOW_FRAG_IPV6 9 547 #define RTE_ETH_FLOW_NONFRAG_IPV6_TCP 10 548 #define RTE_ETH_FLOW_NONFRAG_IPV6_UDP 11 549 #define RTE_ETH_FLOW_NONFRAG_IPV6_SCTP 12 550 #define RTE_ETH_FLOW_NONFRAG_IPV6_OTHER 13 551 #define RTE_ETH_FLOW_L2_PAYLOAD 14 552 #define RTE_ETH_FLOW_IPV6_EX 15 553 #define RTE_ETH_FLOW_IPV6_TCP_EX 16 554 #define RTE_ETH_FLOW_IPV6_UDP_EX 17 555 /** Consider device port number as a flow differentiator */ 556 #define RTE_ETH_FLOW_PORT 18 557 #define RTE_ETH_FLOW_VXLAN 19 /**< VXLAN protocol based flow */ 558 #define RTE_ETH_FLOW_GENEVE 20 /**< GENEVE protocol based flow */ 559 #define RTE_ETH_FLOW_NVGRE 21 /**< NVGRE protocol based flow */ 560 #define RTE_ETH_FLOW_VXLAN_GPE 22 /**< VXLAN-GPE protocol based flow */ 561 #define RTE_ETH_FLOW_GTPU 23 /**< GTPU protocol based flow */ 562 #define RTE_ETH_FLOW_MAX 24 563 564 /* 565 * Below macros are defined for RSS offload types, they can be used to 566 * fill rte_eth_rss_conf.rss_hf or rte_flow_action_rss.types. 567 */ 568 #define RTE_ETH_RSS_IPV4 RTE_BIT64(2) 569 #define ETH_RSS_IPV4 RTE_ETH_RSS_IPV4 570 #define RTE_ETH_RSS_FRAG_IPV4 RTE_BIT64(3) 571 #define ETH_RSS_FRAG_IPV4 RTE_ETH_RSS_FRAG_IPV4 572 #define RTE_ETH_RSS_NONFRAG_IPV4_TCP RTE_BIT64(4) 573 #define ETH_RSS_NONFRAG_IPV4_TCP RTE_ETH_RSS_NONFRAG_IPV4_TCP 574 #define RTE_ETH_RSS_NONFRAG_IPV4_UDP RTE_BIT64(5) 575 #define ETH_RSS_NONFRAG_IPV4_UDP RTE_ETH_RSS_NONFRAG_IPV4_UDP 576 #define RTE_ETH_RSS_NONFRAG_IPV4_SCTP RTE_BIT64(6) 577 #define ETH_RSS_NONFRAG_IPV4_SCTP RTE_ETH_RSS_NONFRAG_IPV4_SCTP 578 #define RTE_ETH_RSS_NONFRAG_IPV4_OTHER RTE_BIT64(7) 579 #define ETH_RSS_NONFRAG_IPV4_OTHER RTE_ETH_RSS_NONFRAG_IPV4_OTHER 580 #define RTE_ETH_RSS_IPV6 RTE_BIT64(8) 581 #define ETH_RSS_IPV6 RTE_ETH_RSS_IPV6 582 #define RTE_ETH_RSS_FRAG_IPV6 RTE_BIT64(9) 583 #define ETH_RSS_FRAG_IPV6 RTE_ETH_RSS_FRAG_IPV6 584 #define RTE_ETH_RSS_NONFRAG_IPV6_TCP RTE_BIT64(10) 585 #define ETH_RSS_NONFRAG_IPV6_TCP RTE_ETH_RSS_NONFRAG_IPV6_TCP 586 #define RTE_ETH_RSS_NONFRAG_IPV6_UDP RTE_BIT64(11) 587 #define ETH_RSS_NONFRAG_IPV6_UDP RTE_ETH_RSS_NONFRAG_IPV6_UDP 588 #define RTE_ETH_RSS_NONFRAG_IPV6_SCTP RTE_BIT64(12) 589 #define ETH_RSS_NONFRAG_IPV6_SCTP RTE_ETH_RSS_NONFRAG_IPV6_SCTP 590 #define RTE_ETH_RSS_NONFRAG_IPV6_OTHER RTE_BIT64(13) 591 #define ETH_RSS_NONFRAG_IPV6_OTHER RTE_ETH_RSS_NONFRAG_IPV6_OTHER 592 #define RTE_ETH_RSS_L2_PAYLOAD RTE_BIT64(14) 593 #define ETH_RSS_L2_PAYLOAD RTE_ETH_RSS_L2_PAYLOAD 594 #define RTE_ETH_RSS_IPV6_EX RTE_BIT64(15) 595 #define ETH_RSS_IPV6_EX RTE_ETH_RSS_IPV6_EX 596 #define RTE_ETH_RSS_IPV6_TCP_EX RTE_BIT64(16) 597 #define ETH_RSS_IPV6_TCP_EX RTE_ETH_RSS_IPV6_TCP_EX 598 #define RTE_ETH_RSS_IPV6_UDP_EX RTE_BIT64(17) 599 #define ETH_RSS_IPV6_UDP_EX RTE_ETH_RSS_IPV6_UDP_EX 600 #define RTE_ETH_RSS_PORT RTE_BIT64(18) 601 #define ETH_RSS_PORT RTE_ETH_RSS_PORT 602 #define RTE_ETH_RSS_VXLAN RTE_BIT64(19) 603 #define ETH_RSS_VXLAN RTE_ETH_RSS_VXLAN 604 #define RTE_ETH_RSS_GENEVE RTE_BIT64(20) 605 #define ETH_RSS_GENEVE RTE_ETH_RSS_GENEVE 606 #define RTE_ETH_RSS_NVGRE RTE_BIT64(21) 607 #define ETH_RSS_NVGRE RTE_ETH_RSS_NVGRE 608 #define RTE_ETH_RSS_GTPU RTE_BIT64(23) 609 #define ETH_RSS_GTPU RTE_ETH_RSS_GTPU 610 #define RTE_ETH_RSS_ETH RTE_BIT64(24) 611 #define ETH_RSS_ETH RTE_ETH_RSS_ETH 612 #define RTE_ETH_RSS_S_VLAN RTE_BIT64(25) 613 #define ETH_RSS_S_VLAN RTE_ETH_RSS_S_VLAN 614 #define RTE_ETH_RSS_C_VLAN RTE_BIT64(26) 615 #define ETH_RSS_C_VLAN RTE_ETH_RSS_C_VLAN 616 #define RTE_ETH_RSS_ESP RTE_BIT64(27) 617 #define ETH_RSS_ESP RTE_ETH_RSS_ESP 618 #define RTE_ETH_RSS_AH RTE_BIT64(28) 619 #define ETH_RSS_AH RTE_ETH_RSS_AH 620 #define RTE_ETH_RSS_L2TPV3 RTE_BIT64(29) 621 #define ETH_RSS_L2TPV3 RTE_ETH_RSS_L2TPV3 622 #define RTE_ETH_RSS_PFCP RTE_BIT64(30) 623 #define ETH_RSS_PFCP RTE_ETH_RSS_PFCP 624 #define RTE_ETH_RSS_PPPOE RTE_BIT64(31) 625 #define ETH_RSS_PPPOE RTE_ETH_RSS_PPPOE 626 #define RTE_ETH_RSS_ECPRI RTE_BIT64(32) 627 #define ETH_RSS_ECPRI RTE_ETH_RSS_ECPRI 628 #define RTE_ETH_RSS_MPLS RTE_BIT64(33) 629 #define ETH_RSS_MPLS RTE_ETH_RSS_MPLS 630 #define RTE_ETH_RSS_IPV4_CHKSUM RTE_BIT64(34) 631 #define ETH_RSS_IPV4_CHKSUM RTE_ETH_RSS_IPV4_CHKSUM 632 633 /** 634 * The ETH_RSS_L4_CHKSUM works on checksum field of any L4 header. 635 * It is similar to ETH_RSS_PORT that they don't specify the specific type of 636 * L4 header. This macro is defined to replace some specific L4 (TCP/UDP/SCTP) 637 * checksum type for constructing the use of RSS offload bits. 638 * 639 * Due to above reason, some old APIs (and configuration) don't support 640 * RTE_ETH_RSS_L4_CHKSUM. The rte_flow RSS API supports it. 641 * 642 * For the case that checksum is not used in an UDP header, 643 * it takes the reserved value 0 as input for the hash function. 644 */ 645 #define RTE_ETH_RSS_L4_CHKSUM RTE_BIT64(35) 646 #define ETH_RSS_L4_CHKSUM RTE_ETH_RSS_L4_CHKSUM 647 648 /* 649 * We use the following macros to combine with above RTE_ETH_RSS_* for 650 * more specific input set selection. These bits are defined starting 651 * from the high end of the 64 bits. 652 * Note: If we use above RTE_ETH_RSS_* without SRC/DST_ONLY, it represents 653 * both SRC and DST are taken into account. If SRC_ONLY and DST_ONLY of 654 * the same level are used simultaneously, it is the same case as none of 655 * them are added. 656 */ 657 #define RTE_ETH_RSS_L3_SRC_ONLY RTE_BIT64(63) 658 #define ETH_RSS_L3_SRC_ONLY RTE_ETH_RSS_L3_SRC_ONLY 659 #define RTE_ETH_RSS_L3_DST_ONLY RTE_BIT64(62) 660 #define ETH_RSS_L3_DST_ONLY RTE_ETH_RSS_L3_DST_ONLY 661 #define RTE_ETH_RSS_L4_SRC_ONLY RTE_BIT64(61) 662 #define ETH_RSS_L4_SRC_ONLY RTE_ETH_RSS_L4_SRC_ONLY 663 #define RTE_ETH_RSS_L4_DST_ONLY RTE_BIT64(60) 664 #define ETH_RSS_L4_DST_ONLY RTE_ETH_RSS_L4_DST_ONLY 665 #define RTE_ETH_RSS_L2_SRC_ONLY RTE_BIT64(59) 666 #define ETH_RSS_L2_SRC_ONLY RTE_ETH_RSS_L2_SRC_ONLY 667 #define RTE_ETH_RSS_L2_DST_ONLY RTE_BIT64(58) 668 #define ETH_RSS_L2_DST_ONLY RTE_ETH_RSS_L2_DST_ONLY 669 670 /* 671 * Only select IPV6 address prefix as RSS input set according to 672 * https:tools.ietf.org/html/rfc6052 673 * Must be combined with RTE_ETH_RSS_IPV6, RTE_ETH_RSS_NONFRAG_IPV6_UDP, 674 * RTE_ETH_RSS_NONFRAG_IPV6_TCP, RTE_ETH_RSS_NONFRAG_IPV6_SCTP. 675 */ 676 #define RTE_ETH_RSS_L3_PRE32 RTE_BIT64(57) 677 #define RTE_ETH_RSS_L3_PRE40 RTE_BIT64(56) 678 #define RTE_ETH_RSS_L3_PRE48 RTE_BIT64(55) 679 #define RTE_ETH_RSS_L3_PRE56 RTE_BIT64(54) 680 #define RTE_ETH_RSS_L3_PRE64 RTE_BIT64(53) 681 #define RTE_ETH_RSS_L3_PRE96 RTE_BIT64(52) 682 683 /* 684 * Use the following macros to combine with the above layers 685 * to choose inner and outer layers or both for RSS computation. 686 * Bits 50 and 51 are reserved for this. 687 */ 688 689 /** 690 * level 0, requests the default behavior. 691 * Depending on the packet type, it can mean outermost, innermost, 692 * anything in between or even no RSS. 693 * It basically stands for the innermost encapsulation level RSS 694 * can be performed on according to PMD and device capabilities. 695 */ 696 #define RTE_ETH_RSS_LEVEL_PMD_DEFAULT (UINT64_C(0) << 50) 697 #define ETH_RSS_LEVEL_PMD_DEFAULT RTE_ETH_RSS_LEVEL_PMD_DEFAULT 698 699 /** 700 * level 1, requests RSS to be performed on the outermost packet 701 * encapsulation level. 702 */ 703 #define RTE_ETH_RSS_LEVEL_OUTERMOST (UINT64_C(1) << 50) 704 #define ETH_RSS_LEVEL_OUTERMOST RTE_ETH_RSS_LEVEL_OUTERMOST 705 706 /** 707 * level 2, requests RSS to be performed on the specified inner packet 708 * encapsulation level, from outermost to innermost (lower to higher values). 709 */ 710 #define RTE_ETH_RSS_LEVEL_INNERMOST (UINT64_C(2) << 50) 711 #define ETH_RSS_LEVEL_INNERMOST RTE_ETH_RSS_LEVEL_INNERMOST 712 #define RTE_ETH_RSS_LEVEL_MASK (UINT64_C(3) << 50) 713 #define ETH_RSS_LEVEL_MASK RTE_ETH_RSS_LEVEL_MASK 714 715 #define RTE_ETH_RSS_LEVEL(rss_hf) ((rss_hf & RTE_ETH_RSS_LEVEL_MASK) >> 50) 716 #define ETH_RSS_LEVEL(rss_hf) RTE_ETH_RSS_LEVEL(rss_hf) 717 718 /** 719 * For input set change of hash filter, if SRC_ONLY and DST_ONLY of 720 * the same level are used simultaneously, it is the same case as 721 * none of them are added. 722 * 723 * @param rss_hf 724 * RSS types with SRC/DST_ONLY. 725 * @return 726 * RSS types. 727 */ 728 static inline uint64_t 729 rte_eth_rss_hf_refine(uint64_t rss_hf) 730 { 731 if ((rss_hf & RTE_ETH_RSS_L3_SRC_ONLY) && (rss_hf & RTE_ETH_RSS_L3_DST_ONLY)) 732 rss_hf &= ~(RTE_ETH_RSS_L3_SRC_ONLY | RTE_ETH_RSS_L3_DST_ONLY); 733 734 if ((rss_hf & RTE_ETH_RSS_L4_SRC_ONLY) && (rss_hf & RTE_ETH_RSS_L4_DST_ONLY)) 735 rss_hf &= ~(RTE_ETH_RSS_L4_SRC_ONLY | RTE_ETH_RSS_L4_DST_ONLY); 736 737 return rss_hf; 738 } 739 740 #define RTE_ETH_RSS_IPV6_PRE32 ( \ 741 RTE_ETH_RSS_IPV6 | \ 742 RTE_ETH_RSS_L3_PRE32) 743 #define ETH_RSS_IPV6_PRE32 RTE_ETH_RSS_IPV6_PRE32 744 745 #define RTE_ETH_RSS_IPV6_PRE40 ( \ 746 RTE_ETH_RSS_IPV6 | \ 747 RTE_ETH_RSS_L3_PRE40) 748 #define ETH_RSS_IPV6_PRE40 RTE_ETH_RSS_IPV6_PRE40 749 750 #define RTE_ETH_RSS_IPV6_PRE48 ( \ 751 RTE_ETH_RSS_IPV6 | \ 752 RTE_ETH_RSS_L3_PRE48) 753 #define ETH_RSS_IPV6_PRE48 RTE_ETH_RSS_IPV6_PRE48 754 755 #define RTE_ETH_RSS_IPV6_PRE56 ( \ 756 RTE_ETH_RSS_IPV6 | \ 757 RTE_ETH_RSS_L3_PRE56) 758 #define ETH_RSS_IPV6_PRE56 RTE_ETH_RSS_IPV6_PRE56 759 760 #define RTE_ETH_RSS_IPV6_PRE64 ( \ 761 RTE_ETH_RSS_IPV6 | \ 762 RTE_ETH_RSS_L3_PRE64) 763 #define ETH_RSS_IPV6_PRE64 RTE_ETH_RSS_IPV6_PRE64 764 765 #define RTE_ETH_RSS_IPV6_PRE96 ( \ 766 RTE_ETH_RSS_IPV6 | \ 767 RTE_ETH_RSS_L3_PRE96) 768 #define ETH_RSS_IPV6_PRE96 RTE_ETH_RSS_IPV6_PRE96 769 770 #define RTE_ETH_RSS_IPV6_PRE32_UDP ( \ 771 RTE_ETH_RSS_NONFRAG_IPV6_UDP | \ 772 RTE_ETH_RSS_L3_PRE32) 773 #define ETH_RSS_IPV6_PRE32_UDP RTE_ETH_RSS_IPV6_PRE32_UDP 774 775 #define RTE_ETH_RSS_IPV6_PRE40_UDP ( \ 776 RTE_ETH_RSS_NONFRAG_IPV6_UDP | \ 777 RTE_ETH_RSS_L3_PRE40) 778 #define ETH_RSS_IPV6_PRE40_UDP RTE_ETH_RSS_IPV6_PRE40_UDP 779 780 #define RTE_ETH_RSS_IPV6_PRE48_UDP ( \ 781 RTE_ETH_RSS_NONFRAG_IPV6_UDP | \ 782 RTE_ETH_RSS_L3_PRE48) 783 #define ETH_RSS_IPV6_PRE48_UDP RTE_ETH_RSS_IPV6_PRE48_UDP 784 785 #define RTE_ETH_RSS_IPV6_PRE56_UDP ( \ 786 RTE_ETH_RSS_NONFRAG_IPV6_UDP | \ 787 RTE_ETH_RSS_L3_PRE56) 788 #define ETH_RSS_IPV6_PRE56_UDP RTE_ETH_RSS_IPV6_PRE56_UDP 789 790 #define RTE_ETH_RSS_IPV6_PRE64_UDP ( \ 791 RTE_ETH_RSS_NONFRAG_IPV6_UDP | \ 792 RTE_ETH_RSS_L3_PRE64) 793 #define ETH_RSS_IPV6_PRE64_UDP RTE_ETH_RSS_IPV6_PRE64_UDP 794 795 #define RTE_ETH_RSS_IPV6_PRE96_UDP ( \ 796 RTE_ETH_RSS_NONFRAG_IPV6_UDP | \ 797 RTE_ETH_RSS_L3_PRE96) 798 #define ETH_RSS_IPV6_PRE96_UDP RTE_ETH_RSS_IPV6_PRE96_UDP 799 800 #define RTE_ETH_RSS_IPV6_PRE32_TCP ( \ 801 RTE_ETH_RSS_NONFRAG_IPV6_TCP | \ 802 RTE_ETH_RSS_L3_PRE32) 803 #define ETH_RSS_IPV6_PRE32_TCP RTE_ETH_RSS_IPV6_PRE32_TCP 804 805 #define RTE_ETH_RSS_IPV6_PRE40_TCP ( \ 806 RTE_ETH_RSS_NONFRAG_IPV6_TCP | \ 807 RTE_ETH_RSS_L3_PRE40) 808 #define ETH_RSS_IPV6_PRE40_TCP RTE_ETH_RSS_IPV6_PRE40_TCP 809 810 #define RTE_ETH_RSS_IPV6_PRE48_TCP ( \ 811 RTE_ETH_RSS_NONFRAG_IPV6_TCP | \ 812 RTE_ETH_RSS_L3_PRE48) 813 #define ETH_RSS_IPV6_PRE48_TCP RTE_ETH_RSS_IPV6_PRE48_TCP 814 815 #define RTE_ETH_RSS_IPV6_PRE56_TCP ( \ 816 RTE_ETH_RSS_NONFRAG_IPV6_TCP | \ 817 RTE_ETH_RSS_L3_PRE56) 818 #define ETH_RSS_IPV6_PRE56_TCP RTE_ETH_RSS_IPV6_PRE56_TCP 819 820 #define RTE_ETH_RSS_IPV6_PRE64_TCP ( \ 821 RTE_ETH_RSS_NONFRAG_IPV6_TCP | \ 822 RTE_ETH_RSS_L3_PRE64) 823 #define ETH_RSS_IPV6_PRE64_TCP RTE_ETH_RSS_IPV6_PRE64_TCP 824 825 #define RTE_ETH_RSS_IPV6_PRE96_TCP ( \ 826 RTE_ETH_RSS_NONFRAG_IPV6_TCP | \ 827 RTE_ETH_RSS_L3_PRE96) 828 #define ETH_RSS_IPV6_PRE96_TCP RTE_ETH_RSS_IPV6_PRE96_TCP 829 830 #define RTE_ETH_RSS_IPV6_PRE32_SCTP ( \ 831 RTE_ETH_RSS_NONFRAG_IPV6_SCTP | \ 832 RTE_ETH_RSS_L3_PRE32) 833 #define ETH_RSS_IPV6_PRE32_SCTP RTE_ETH_RSS_IPV6_PRE32_SCTP 834 835 #define RTE_ETH_RSS_IPV6_PRE40_SCTP ( \ 836 RTE_ETH_RSS_NONFRAG_IPV6_SCTP | \ 837 RTE_ETH_RSS_L3_PRE40) 838 #define ETH_RSS_IPV6_PRE40_SCTP RTE_ETH_RSS_IPV6_PRE40_SCTP 839 840 #define RTE_ETH_RSS_IPV6_PRE48_SCTP ( \ 841 RTE_ETH_RSS_NONFRAG_IPV6_SCTP | \ 842 RTE_ETH_RSS_L3_PRE48) 843 #define ETH_RSS_IPV6_PRE48_SCTP RTE_ETH_RSS_IPV6_PRE48_SCTP 844 845 #define RTE_ETH_RSS_IPV6_PRE56_SCTP ( \ 846 RTE_ETH_RSS_NONFRAG_IPV6_SCTP | \ 847 RTE_ETH_RSS_L3_PRE56) 848 #define ETH_RSS_IPV6_PRE56_SCTP RTE_ETH_RSS_IPV6_PRE56_SCTP 849 850 #define RTE_ETH_RSS_IPV6_PRE64_SCTP ( \ 851 RTE_ETH_RSS_NONFRAG_IPV6_SCTP | \ 852 RTE_ETH_RSS_L3_PRE64) 853 #define ETH_RSS_IPV6_PRE64_SCTP RTE_ETH_RSS_IPV6_PRE64_SCTP 854 855 #define RTE_ETH_RSS_IPV6_PRE96_SCTP ( \ 856 RTE_ETH_RSS_NONFRAG_IPV6_SCTP | \ 857 RTE_ETH_RSS_L3_PRE96) 858 #define ETH_RSS_IPV6_PRE96_SCTP RTE_ETH_RSS_IPV6_PRE96_SCTP 859 860 #define RTE_ETH_RSS_IP ( \ 861 RTE_ETH_RSS_IPV4 | \ 862 RTE_ETH_RSS_FRAG_IPV4 | \ 863 RTE_ETH_RSS_NONFRAG_IPV4_OTHER | \ 864 RTE_ETH_RSS_IPV6 | \ 865 RTE_ETH_RSS_FRAG_IPV6 | \ 866 RTE_ETH_RSS_NONFRAG_IPV6_OTHER | \ 867 RTE_ETH_RSS_IPV6_EX) 868 #define ETH_RSS_IP RTE_ETH_RSS_IP 869 870 #define RTE_ETH_RSS_UDP ( \ 871 RTE_ETH_RSS_NONFRAG_IPV4_UDP | \ 872 RTE_ETH_RSS_NONFRAG_IPV6_UDP | \ 873 RTE_ETH_RSS_IPV6_UDP_EX) 874 #define ETH_RSS_UDP RTE_ETH_RSS_UDP 875 876 #define RTE_ETH_RSS_TCP ( \ 877 RTE_ETH_RSS_NONFRAG_IPV4_TCP | \ 878 RTE_ETH_RSS_NONFRAG_IPV6_TCP | \ 879 RTE_ETH_RSS_IPV6_TCP_EX) 880 #define ETH_RSS_TCP RTE_ETH_RSS_TCP 881 882 #define RTE_ETH_RSS_SCTP ( \ 883 RTE_ETH_RSS_NONFRAG_IPV4_SCTP | \ 884 RTE_ETH_RSS_NONFRAG_IPV6_SCTP) 885 #define ETH_RSS_SCTP RTE_ETH_RSS_SCTP 886 887 #define RTE_ETH_RSS_TUNNEL ( \ 888 RTE_ETH_RSS_VXLAN | \ 889 RTE_ETH_RSS_GENEVE | \ 890 RTE_ETH_RSS_NVGRE) 891 #define ETH_RSS_TUNNEL RTE_ETH_RSS_TUNNEL 892 893 #define RTE_ETH_RSS_VLAN ( \ 894 RTE_ETH_RSS_S_VLAN | \ 895 RTE_ETH_RSS_C_VLAN) 896 #define ETH_RSS_VLAN RTE_ETH_RSS_VLAN 897 898 /** Mask of valid RSS hash protocols */ 899 #define RTE_ETH_RSS_PROTO_MASK ( \ 900 RTE_ETH_RSS_IPV4 | \ 901 RTE_ETH_RSS_FRAG_IPV4 | \ 902 RTE_ETH_RSS_NONFRAG_IPV4_TCP | \ 903 RTE_ETH_RSS_NONFRAG_IPV4_UDP | \ 904 RTE_ETH_RSS_NONFRAG_IPV4_SCTP | \ 905 RTE_ETH_RSS_NONFRAG_IPV4_OTHER | \ 906 RTE_ETH_RSS_IPV6 | \ 907 RTE_ETH_RSS_FRAG_IPV6 | \ 908 RTE_ETH_RSS_NONFRAG_IPV6_TCP | \ 909 RTE_ETH_RSS_NONFRAG_IPV6_UDP | \ 910 RTE_ETH_RSS_NONFRAG_IPV6_SCTP | \ 911 RTE_ETH_RSS_NONFRAG_IPV6_OTHER | \ 912 RTE_ETH_RSS_L2_PAYLOAD | \ 913 RTE_ETH_RSS_IPV6_EX | \ 914 RTE_ETH_RSS_IPV6_TCP_EX | \ 915 RTE_ETH_RSS_IPV6_UDP_EX | \ 916 RTE_ETH_RSS_PORT | \ 917 RTE_ETH_RSS_VXLAN | \ 918 RTE_ETH_RSS_GENEVE | \ 919 RTE_ETH_RSS_NVGRE | \ 920 RTE_ETH_RSS_MPLS) 921 #define ETH_RSS_PROTO_MASK RTE_ETH_RSS_PROTO_MASK 922 923 /* 924 * Definitions used for redirection table entry size. 925 * Some RSS RETA sizes may not be supported by some drivers, check the 926 * documentation or the description of relevant functions for more details. 927 */ 928 #define RTE_ETH_RSS_RETA_SIZE_64 64 929 #define ETH_RSS_RETA_SIZE_64 RTE_ETH_RSS_RETA_SIZE_64 930 #define RTE_ETH_RSS_RETA_SIZE_128 128 931 #define ETH_RSS_RETA_SIZE_128 RTE_ETH_RSS_RETA_SIZE_128 932 #define RTE_ETH_RSS_RETA_SIZE_256 256 933 #define ETH_RSS_RETA_SIZE_256 RTE_ETH_RSS_RETA_SIZE_256 934 #define RTE_ETH_RSS_RETA_SIZE_512 512 935 #define ETH_RSS_RETA_SIZE_512 RTE_ETH_RSS_RETA_SIZE_512 936 #define RTE_ETH_RETA_GROUP_SIZE 64 937 #define RTE_RETA_GROUP_SIZE RTE_ETH_RETA_GROUP_SIZE 938 939 /**@{@name VMDq and DCB maximums */ 940 #define RTE_ETH_VMDQ_MAX_VLAN_FILTERS 64 /**< Maximum nb. of VMDq VLAN filters. */ 941 #define ETH_VMDQ_MAX_VLAN_FILTERS RTE_ETH_VMDQ_MAX_VLAN_FILTERS 942 #define RTE_ETH_DCB_NUM_USER_PRIORITIES 8 /**< Maximum nb. of DCB priorities. */ 943 #define ETH_DCB_NUM_USER_PRIORITIES RTE_ETH_DCB_NUM_USER_PRIORITIES 944 #define RTE_ETH_VMDQ_DCB_NUM_QUEUES 128 /**< Maximum nb. of VMDq DCB queues. */ 945 #define ETH_VMDQ_DCB_NUM_QUEUES RTE_ETH_VMDQ_DCB_NUM_QUEUES 946 #define RTE_ETH_DCB_NUM_QUEUES 128 /**< Maximum nb. of DCB queues. */ 947 #define ETH_DCB_NUM_QUEUES RTE_ETH_DCB_NUM_QUEUES 948 /**@}*/ 949 950 /**@{@name DCB capabilities */ 951 #define RTE_ETH_DCB_PG_SUPPORT RTE_BIT32(0) /**< Priority Group(ETS) support. */ 952 #define ETH_DCB_PG_SUPPORT RTE_ETH_DCB_PG_SUPPORT 953 #define RTE_ETH_DCB_PFC_SUPPORT RTE_BIT32(1) /**< Priority Flow Control support. */ 954 #define ETH_DCB_PFC_SUPPORT RTE_ETH_DCB_PFC_SUPPORT 955 /**@}*/ 956 957 /**@{@name VLAN offload bits */ 958 #define RTE_ETH_VLAN_STRIP_OFFLOAD 0x0001 /**< VLAN Strip On/Off */ 959 #define ETH_VLAN_STRIP_OFFLOAD RTE_ETH_VLAN_STRIP_OFFLOAD 960 #define RTE_ETH_VLAN_FILTER_OFFLOAD 0x0002 /**< VLAN Filter On/Off */ 961 #define ETH_VLAN_FILTER_OFFLOAD RTE_ETH_VLAN_FILTER_OFFLOAD 962 #define RTE_ETH_VLAN_EXTEND_OFFLOAD 0x0004 /**< VLAN Extend On/Off */ 963 #define ETH_VLAN_EXTEND_OFFLOAD RTE_ETH_VLAN_EXTEND_OFFLOAD 964 #define RTE_ETH_QINQ_STRIP_OFFLOAD 0x0008 /**< QINQ Strip On/Off */ 965 #define ETH_QINQ_STRIP_OFFLOAD RTE_ETH_QINQ_STRIP_OFFLOAD 966 967 #define RTE_ETH_VLAN_STRIP_MASK 0x0001 /**< VLAN Strip setting mask */ 968 #define ETH_VLAN_STRIP_MASK RTE_ETH_VLAN_STRIP_MASK 969 #define RTE_ETH_VLAN_FILTER_MASK 0x0002 /**< VLAN Filter setting mask*/ 970 #define ETH_VLAN_FILTER_MASK RTE_ETH_VLAN_FILTER_MASK 971 #define RTE_ETH_VLAN_EXTEND_MASK 0x0004 /**< VLAN Extend setting mask*/ 972 #define ETH_VLAN_EXTEND_MASK RTE_ETH_VLAN_EXTEND_MASK 973 #define RTE_ETH_QINQ_STRIP_MASK 0x0008 /**< QINQ Strip setting mask */ 974 #define ETH_QINQ_STRIP_MASK RTE_ETH_QINQ_STRIP_MASK 975 #define RTE_ETH_VLAN_ID_MAX 0x0FFF /**< VLAN ID is in lower 12 bits*/ 976 #define ETH_VLAN_ID_MAX RTE_ETH_VLAN_ID_MAX 977 /**@}*/ 978 979 /* Definitions used for receive MAC address */ 980 #define RTE_ETH_NUM_RECEIVE_MAC_ADDR 128 /**< Maximum nb. of receive mac addr. */ 981 #define ETH_NUM_RECEIVE_MAC_ADDR RTE_ETH_NUM_RECEIVE_MAC_ADDR 982 983 /* Definitions used for unicast hash */ 984 #define RTE_ETH_VMDQ_NUM_UC_HASH_ARRAY 128 /**< Maximum nb. of UC hash array. */ 985 #define ETH_VMDQ_NUM_UC_HASH_ARRAY RTE_ETH_VMDQ_NUM_UC_HASH_ARRAY 986 987 /**@{@name VMDq Rx mode 988 * @see rte_eth_vmdq_rx_conf.rx_mode 989 */ 990 /** Accept untagged packets. */ 991 #define RTE_ETH_VMDQ_ACCEPT_UNTAG RTE_BIT32(0) 992 #define ETH_VMDQ_ACCEPT_UNTAG RTE_ETH_VMDQ_ACCEPT_UNTAG 993 /** Accept packets in multicast table. */ 994 #define RTE_ETH_VMDQ_ACCEPT_HASH_MC RTE_BIT32(1) 995 #define ETH_VMDQ_ACCEPT_HASH_MC RTE_ETH_VMDQ_ACCEPT_HASH_MC 996 /** Accept packets in unicast table. */ 997 #define RTE_ETH_VMDQ_ACCEPT_HASH_UC RTE_BIT32(2) 998 #define ETH_VMDQ_ACCEPT_HASH_UC RTE_ETH_VMDQ_ACCEPT_HASH_UC 999 /** Accept broadcast packets. */ 1000 #define RTE_ETH_VMDQ_ACCEPT_BROADCAST RTE_BIT32(3) 1001 #define ETH_VMDQ_ACCEPT_BROADCAST RTE_ETH_VMDQ_ACCEPT_BROADCAST 1002 /** Multicast promiscuous. */ 1003 #define RTE_ETH_VMDQ_ACCEPT_MULTICAST RTE_BIT32(4) 1004 #define ETH_VMDQ_ACCEPT_MULTICAST RTE_ETH_VMDQ_ACCEPT_MULTICAST 1005 /**@}*/ 1006 1007 /** 1008 * A structure used to configure 64 entries of Redirection Table of the 1009 * Receive Side Scaling (RSS) feature of an Ethernet port. To configure 1010 * more than 64 entries supported by hardware, an array of this structure 1011 * is needed. 1012 */ 1013 struct rte_eth_rss_reta_entry64 { 1014 /** Mask bits indicate which entries need to be updated/queried. */ 1015 uint64_t mask; 1016 /** Group of 64 redirection table entries. */ 1017 uint16_t reta[RTE_ETH_RETA_GROUP_SIZE]; 1018 }; 1019 1020 /** 1021 * This enum indicates the possible number of traffic classes 1022 * in DCB configurations 1023 */ 1024 enum rte_eth_nb_tcs { 1025 RTE_ETH_4_TCS = 4, /**< 4 TCs with DCB. */ 1026 RTE_ETH_8_TCS = 8 /**< 8 TCs with DCB. */ 1027 }; 1028 #define ETH_4_TCS RTE_ETH_4_TCS 1029 #define ETH_8_TCS RTE_ETH_8_TCS 1030 1031 /** 1032 * This enum indicates the possible number of queue pools 1033 * in VMDq configurations. 1034 */ 1035 enum rte_eth_nb_pools { 1036 RTE_ETH_8_POOLS = 8, /**< 8 VMDq pools. */ 1037 RTE_ETH_16_POOLS = 16, /**< 16 VMDq pools. */ 1038 RTE_ETH_32_POOLS = 32, /**< 32 VMDq pools. */ 1039 RTE_ETH_64_POOLS = 64 /**< 64 VMDq pools. */ 1040 }; 1041 #define ETH_8_POOLS RTE_ETH_8_POOLS 1042 #define ETH_16_POOLS RTE_ETH_16_POOLS 1043 #define ETH_32_POOLS RTE_ETH_32_POOLS 1044 #define ETH_64_POOLS RTE_ETH_64_POOLS 1045 1046 /* This structure may be extended in future. */ 1047 struct rte_eth_dcb_rx_conf { 1048 enum rte_eth_nb_tcs nb_tcs; /**< Possible DCB TCs, 4 or 8 TCs */ 1049 /** Traffic class each UP mapped to. */ 1050 uint8_t dcb_tc[RTE_ETH_DCB_NUM_USER_PRIORITIES]; 1051 }; 1052 1053 struct rte_eth_vmdq_dcb_tx_conf { 1054 enum rte_eth_nb_pools nb_queue_pools; /**< With DCB, 16 or 32 pools. */ 1055 /** Traffic class each UP mapped to. */ 1056 uint8_t dcb_tc[RTE_ETH_DCB_NUM_USER_PRIORITIES]; 1057 }; 1058 1059 struct rte_eth_dcb_tx_conf { 1060 enum rte_eth_nb_tcs nb_tcs; /**< Possible DCB TCs, 4 or 8 TCs. */ 1061 /** Traffic class each UP mapped to. */ 1062 uint8_t dcb_tc[RTE_ETH_DCB_NUM_USER_PRIORITIES]; 1063 }; 1064 1065 struct rte_eth_vmdq_tx_conf { 1066 enum rte_eth_nb_pools nb_queue_pools; /**< VMDq mode, 64 pools. */ 1067 }; 1068 1069 /** 1070 * A structure used to configure the VMDq+DCB feature 1071 * of an Ethernet port. 1072 * 1073 * Using this feature, packets are routed to a pool of queues, based 1074 * on the VLAN ID in the VLAN tag, and then to a specific queue within 1075 * that pool, using the user priority VLAN tag field. 1076 * 1077 * A default pool may be used, if desired, to route all traffic which 1078 * does not match the VLAN filter rules. 1079 */ 1080 struct rte_eth_vmdq_dcb_conf { 1081 enum rte_eth_nb_pools nb_queue_pools; /**< With DCB, 16 or 32 pools */ 1082 uint8_t enable_default_pool; /**< If non-zero, use a default pool */ 1083 uint8_t default_pool; /**< The default pool, if applicable */ 1084 uint8_t nb_pool_maps; /**< We can have up to 64 filters/mappings */ 1085 struct { 1086 uint16_t vlan_id; /**< The VLAN ID of the received frame */ 1087 uint64_t pools; /**< Bitmask of pools for packet Rx */ 1088 } pool_map[RTE_ETH_VMDQ_MAX_VLAN_FILTERS]; /**< VMDq VLAN pool maps. */ 1089 /** Selects a queue in a pool */ 1090 uint8_t dcb_tc[RTE_ETH_DCB_NUM_USER_PRIORITIES]; 1091 }; 1092 1093 /** 1094 * A structure used to configure the VMDq feature of an Ethernet port when 1095 * not combined with the DCB feature. 1096 * 1097 * Using this feature, packets are routed to a pool of queues. By default, 1098 * the pool selection is based on the MAC address, the VLAN ID in the 1099 * VLAN tag as specified in the pool_map array. 1100 * Passing the RTE_ETH_VMDQ_ACCEPT_UNTAG in the rx_mode field allows pool 1101 * selection using only the MAC address. MAC address to pool mapping is done 1102 * using the rte_eth_dev_mac_addr_add function, with the pool parameter 1103 * corresponding to the pool ID. 1104 * 1105 * Queue selection within the selected pool will be done using RSS when 1106 * it is enabled or revert to the first queue of the pool if not. 1107 * 1108 * A default pool may be used, if desired, to route all traffic which 1109 * does not match the VLAN filter rules or any pool MAC address. 1110 */ 1111 struct rte_eth_vmdq_rx_conf { 1112 enum rte_eth_nb_pools nb_queue_pools; /**< VMDq only mode, 8 or 64 pools */ 1113 uint8_t enable_default_pool; /**< If non-zero, use a default pool */ 1114 uint8_t default_pool; /**< The default pool, if applicable */ 1115 uint8_t enable_loop_back; /**< Enable VT loop back */ 1116 uint8_t nb_pool_maps; /**< We can have up to 64 filters/mappings */ 1117 uint32_t rx_mode; /**< Flags from ETH_VMDQ_ACCEPT_* */ 1118 struct { 1119 uint16_t vlan_id; /**< The VLAN ID of the received frame */ 1120 uint64_t pools; /**< Bitmask of pools for packet Rx */ 1121 } pool_map[RTE_ETH_VMDQ_MAX_VLAN_FILTERS]; /**< VMDq VLAN pool maps. */ 1122 }; 1123 1124 /** 1125 * A structure used to configure the Tx features of an Ethernet port. 1126 */ 1127 struct rte_eth_txmode { 1128 enum rte_eth_tx_mq_mode mq_mode; /**< Tx multi-queues mode. */ 1129 /** 1130 * Per-port Tx offloads to be set using RTE_ETH_TX_OFFLOAD_* flags. 1131 * Only offloads set on tx_offload_capa field on rte_eth_dev_info 1132 * structure are allowed to be set. 1133 */ 1134 uint64_t offloads; 1135 1136 uint16_t pvid; 1137 __extension__ 1138 uint8_t /** If set, reject sending out tagged pkts */ 1139 hw_vlan_reject_tagged : 1, 1140 /** If set, reject sending out untagged pkts */ 1141 hw_vlan_reject_untagged : 1, 1142 /** If set, enable port based VLAN insertion */ 1143 hw_vlan_insert_pvid : 1; 1144 1145 uint64_t reserved_64s[2]; /**< Reserved for future fields */ 1146 void *reserved_ptrs[2]; /**< Reserved for future fields */ 1147 }; 1148 1149 /** 1150 * @warning 1151 * @b EXPERIMENTAL: this structure may change without prior notice. 1152 * 1153 * A structure used to configure an Rx packet segment to split. 1154 * 1155 * If RTE_ETH_RX_OFFLOAD_BUFFER_SPLIT flag is set in offloads field, 1156 * the PMD will split the received packets into multiple segments 1157 * according to the specification in the description array: 1158 * 1159 * - The first network buffer will be allocated from the memory pool, 1160 * specified in the first array element, the second buffer, from the 1161 * pool in the second element, and so on. 1162 * 1163 * - The offsets from the segment description elements specify 1164 * the data offset from the buffer beginning except the first mbuf. 1165 * The first segment offset is added with RTE_PKTMBUF_HEADROOM. 1166 * 1167 * - The lengths in the elements define the maximal data amount 1168 * being received to each segment. The receiving starts with filling 1169 * up the first mbuf data buffer up to specified length. If the 1170 * there are data remaining (packet is longer than buffer in the first 1171 * mbuf) the following data will be pushed to the next segment 1172 * up to its own length, and so on. 1173 * 1174 * - If the length in the segment description element is zero 1175 * the actual buffer size will be deduced from the appropriate 1176 * memory pool properties. 1177 * 1178 * - If there is not enough elements to describe the buffer for entire 1179 * packet of maximal length the following parameters will be used 1180 * for the all remaining segments: 1181 * - pool from the last valid element 1182 * - the buffer size from this pool 1183 * - zero offset 1184 */ 1185 struct rte_eth_rxseg_split { 1186 struct rte_mempool *mp; /**< Memory pool to allocate segment from. */ 1187 uint16_t length; /**< Segment data length, configures split point. */ 1188 uint16_t offset; /**< Data offset from beginning of mbuf data buffer. */ 1189 uint32_t reserved; /**< Reserved field. */ 1190 }; 1191 1192 /** 1193 * @warning 1194 * @b EXPERIMENTAL: this structure may change without prior notice. 1195 * 1196 * A common structure used to describe Rx packet segment properties. 1197 */ 1198 union rte_eth_rxseg { 1199 /* The settings for buffer split offload. */ 1200 struct rte_eth_rxseg_split split; 1201 /* The other features settings should be added here. */ 1202 }; 1203 1204 /** 1205 * A structure used to configure an Rx ring of an Ethernet port. 1206 */ 1207 struct rte_eth_rxconf { 1208 struct rte_eth_thresh rx_thresh; /**< Rx ring threshold registers. */ 1209 uint16_t rx_free_thresh; /**< Drives the freeing of Rx descriptors. */ 1210 uint8_t rx_drop_en; /**< Drop packets if no descriptors are available. */ 1211 uint8_t rx_deferred_start; /**< Do not start queue with rte_eth_dev_start(). */ 1212 uint16_t rx_nseg; /**< Number of descriptions in rx_seg array. */ 1213 /** 1214 * Share group index in Rx domain and switch domain. 1215 * Non-zero value to enable Rx queue share, zero value disable share. 1216 * PMD is responsible for Rx queue consistency checks to avoid member 1217 * port's configuration contradict to each other. 1218 */ 1219 uint16_t share_group; 1220 uint16_t share_qid; /**< Shared Rx queue ID in group */ 1221 /** 1222 * Per-queue Rx offloads to be set using RTE_ETH_RX_OFFLOAD_* flags. 1223 * Only offloads set on rx_queue_offload_capa or rx_offload_capa 1224 * fields on rte_eth_dev_info structure are allowed to be set. 1225 */ 1226 uint64_t offloads; 1227 /** 1228 * Points to the array of segment descriptions for an entire packet. 1229 * Array elements are properties for consecutive Rx segments. 1230 * 1231 * The supported capabilities of receiving segmentation is reported 1232 * in rte_eth_dev_info.rx_seg_capa field. 1233 */ 1234 union rte_eth_rxseg *rx_seg; 1235 1236 uint64_t reserved_64s[2]; /**< Reserved for future fields */ 1237 void *reserved_ptrs[2]; /**< Reserved for future fields */ 1238 }; 1239 1240 /** 1241 * A structure used to configure a Tx ring of an Ethernet port. 1242 */ 1243 struct rte_eth_txconf { 1244 struct rte_eth_thresh tx_thresh; /**< Tx ring threshold registers. */ 1245 uint16_t tx_rs_thresh; /**< Drives the setting of RS bit on TXDs. */ 1246 uint16_t tx_free_thresh; /**< Start freeing Tx buffers if there are 1247 less free descriptors than this value. */ 1248 1249 uint8_t tx_deferred_start; /**< Do not start queue with rte_eth_dev_start(). */ 1250 /** 1251 * Per-queue Tx offloads to be set using RTE_ETH_TX_OFFLOAD_* flags. 1252 * Only offloads set on tx_queue_offload_capa or tx_offload_capa 1253 * fields on rte_eth_dev_info structure are allowed to be set. 1254 */ 1255 uint64_t offloads; 1256 1257 uint64_t reserved_64s[2]; /**< Reserved for future fields */ 1258 void *reserved_ptrs[2]; /**< Reserved for future fields */ 1259 }; 1260 1261 /** 1262 * @warning 1263 * @b EXPERIMENTAL: this API may change, or be removed, without prior notice 1264 * 1265 * A structure used to return the hairpin capabilities that are supported. 1266 */ 1267 struct rte_eth_hairpin_cap { 1268 /** The max number of hairpin queues (different bindings). */ 1269 uint16_t max_nb_queues; 1270 /** Max number of Rx queues to be connected to one Tx queue. */ 1271 uint16_t max_rx_2_tx; 1272 /** Max number of Tx queues to be connected to one Rx queue. */ 1273 uint16_t max_tx_2_rx; 1274 uint16_t max_nb_desc; /**< The max num of descriptors. */ 1275 }; 1276 1277 #define RTE_ETH_MAX_HAIRPIN_PEERS 32 1278 1279 /** 1280 * @warning 1281 * @b EXPERIMENTAL: this API may change, or be removed, without prior notice 1282 * 1283 * A structure used to hold hairpin peer data. 1284 */ 1285 struct rte_eth_hairpin_peer { 1286 uint16_t port; /**< Peer port. */ 1287 uint16_t queue; /**< Peer queue. */ 1288 }; 1289 1290 /** 1291 * @warning 1292 * @b EXPERIMENTAL: this API may change, or be removed, without prior notice 1293 * 1294 * A structure used to configure hairpin binding. 1295 */ 1296 struct rte_eth_hairpin_conf { 1297 uint32_t peer_count:16; /**< The number of peers. */ 1298 1299 /** 1300 * Explicit Tx flow rule mode. 1301 * One hairpin pair of queues should have the same attribute. 1302 * 1303 * - When set, the user should be responsible for inserting the hairpin 1304 * Tx part flows and removing them. 1305 * - When clear, the PMD will try to handle the Tx part of the flows, 1306 * e.g., by splitting one flow into two parts. 1307 */ 1308 uint32_t tx_explicit:1; 1309 1310 /** 1311 * Manually bind hairpin queues. 1312 * One hairpin pair of queues should have the same attribute. 1313 * 1314 * - When set, to enable hairpin, the user should call the hairpin bind 1315 * function after all the queues are set up properly and the ports are 1316 * started. Also, the hairpin unbind function should be called 1317 * accordingly before stopping a port that with hairpin configured. 1318 * - When clear, the PMD will try to enable the hairpin with the queues 1319 * configured automatically during port start. 1320 */ 1321 uint32_t manual_bind:1; 1322 uint32_t reserved:14; /**< Reserved bits. */ 1323 struct rte_eth_hairpin_peer peers[RTE_ETH_MAX_HAIRPIN_PEERS]; 1324 }; 1325 1326 /** 1327 * A structure contains information about HW descriptor ring limitations. 1328 */ 1329 struct rte_eth_desc_lim { 1330 uint16_t nb_max; /**< Max allowed number of descriptors. */ 1331 uint16_t nb_min; /**< Min allowed number of descriptors. */ 1332 uint16_t nb_align; /**< Number of descriptors should be aligned to. */ 1333 1334 /** 1335 * Max allowed number of segments per whole packet. 1336 * 1337 * - For TSO packet this is the total number of data descriptors allowed 1338 * by device. 1339 * 1340 * @see nb_mtu_seg_max 1341 */ 1342 uint16_t nb_seg_max; 1343 1344 /** 1345 * Max number of segments per one MTU. 1346 * 1347 * - For non-TSO packet, this is the maximum allowed number of segments 1348 * in a single transmit packet. 1349 * 1350 * - For TSO packet each segment within the TSO may span up to this 1351 * value. 1352 * 1353 * @see nb_seg_max 1354 */ 1355 uint16_t nb_mtu_seg_max; 1356 }; 1357 1358 /** 1359 * This enum indicates the flow control mode 1360 */ 1361 enum rte_eth_fc_mode { 1362 RTE_ETH_FC_NONE = 0, /**< Disable flow control. */ 1363 RTE_ETH_FC_RX_PAUSE, /**< Rx pause frame, enable flowctrl on Tx side. */ 1364 RTE_ETH_FC_TX_PAUSE, /**< Tx pause frame, enable flowctrl on Rx side. */ 1365 RTE_ETH_FC_FULL /**< Enable flow control on both side. */ 1366 }; 1367 1368 #define RTE_FC_NONE RTE_ETH_FC_NONE 1369 #define RTE_FC_RX_PAUSE RTE_ETH_FC_RX_PAUSE 1370 #define RTE_FC_TX_PAUSE RTE_ETH_FC_TX_PAUSE 1371 #define RTE_FC_FULL RTE_ETH_FC_FULL 1372 1373 /** 1374 * A structure used to configure Ethernet flow control parameter. 1375 * These parameters will be configured into the register of the NIC. 1376 * Please refer to the corresponding data sheet for proper value. 1377 */ 1378 struct rte_eth_fc_conf { 1379 uint32_t high_water; /**< High threshold value to trigger XOFF */ 1380 uint32_t low_water; /**< Low threshold value to trigger XON */ 1381 uint16_t pause_time; /**< Pause quota in the Pause frame */ 1382 uint16_t send_xon; /**< Is XON frame need be sent */ 1383 enum rte_eth_fc_mode mode; /**< Link flow control mode */ 1384 uint8_t mac_ctrl_frame_fwd; /**< Forward MAC control frames */ 1385 uint8_t autoneg; /**< Use Pause autoneg */ 1386 }; 1387 1388 /** 1389 * A structure used to configure Ethernet priority flow control parameter. 1390 * These parameters will be configured into the register of the NIC. 1391 * Please refer to the corresponding data sheet for proper value. 1392 */ 1393 struct rte_eth_pfc_conf { 1394 struct rte_eth_fc_conf fc; /**< General flow control parameter. */ 1395 uint8_t priority; /**< VLAN User Priority. */ 1396 }; 1397 1398 /** 1399 * Tunnel type for device-specific classifier configuration. 1400 * @see rte_eth_udp_tunnel 1401 */ 1402 enum rte_eth_tunnel_type { 1403 RTE_ETH_TUNNEL_TYPE_NONE = 0, 1404 RTE_ETH_TUNNEL_TYPE_VXLAN, 1405 RTE_ETH_TUNNEL_TYPE_GENEVE, 1406 RTE_ETH_TUNNEL_TYPE_TEREDO, 1407 RTE_ETH_TUNNEL_TYPE_NVGRE, 1408 RTE_ETH_TUNNEL_TYPE_IP_IN_GRE, 1409 RTE_ETH_L2_TUNNEL_TYPE_E_TAG, 1410 RTE_ETH_TUNNEL_TYPE_VXLAN_GPE, 1411 RTE_ETH_TUNNEL_TYPE_ECPRI, 1412 RTE_ETH_TUNNEL_TYPE_MAX, 1413 }; 1414 1415 #define RTE_TUNNEL_TYPE_NONE RTE_ETH_TUNNEL_TYPE_NONE 1416 #define RTE_TUNNEL_TYPE_VXLAN RTE_ETH_TUNNEL_TYPE_VXLAN 1417 #define RTE_TUNNEL_TYPE_GENEVE RTE_ETH_TUNNEL_TYPE_GENEVE 1418 #define RTE_TUNNEL_TYPE_TEREDO RTE_ETH_TUNNEL_TYPE_TEREDO 1419 #define RTE_TUNNEL_TYPE_NVGRE RTE_ETH_TUNNEL_TYPE_NVGRE 1420 #define RTE_TUNNEL_TYPE_IP_IN_GRE RTE_ETH_TUNNEL_TYPE_IP_IN_GRE 1421 #define RTE_L2_TUNNEL_TYPE_E_TAG RTE_ETH_L2_TUNNEL_TYPE_E_TAG 1422 #define RTE_TUNNEL_TYPE_VXLAN_GPE RTE_ETH_TUNNEL_TYPE_VXLAN_GPE 1423 #define RTE_TUNNEL_TYPE_ECPRI RTE_ETH_TUNNEL_TYPE_ECPRI 1424 #define RTE_TUNNEL_TYPE_MAX RTE_ETH_TUNNEL_TYPE_MAX 1425 1426 /* Deprecated API file for rte_eth_dev_filter_* functions */ 1427 #include "rte_eth_ctrl.h" 1428 1429 /** 1430 * Memory space that can be configured to store Flow Director filters 1431 * in the board memory. 1432 */ 1433 enum rte_eth_fdir_pballoc_type { 1434 RTE_ETH_FDIR_PBALLOC_64K = 0, /**< 64k. */ 1435 RTE_ETH_FDIR_PBALLOC_128K, /**< 128k. */ 1436 RTE_ETH_FDIR_PBALLOC_256K, /**< 256k. */ 1437 }; 1438 #define rte_fdir_pballoc_type rte_eth_fdir_pballoc_type 1439 1440 #define RTE_FDIR_PBALLOC_64K RTE_ETH_FDIR_PBALLOC_64K 1441 #define RTE_FDIR_PBALLOC_128K RTE_ETH_FDIR_PBALLOC_128K 1442 #define RTE_FDIR_PBALLOC_256K RTE_ETH_FDIR_PBALLOC_256K 1443 1444 /** 1445 * Select report mode of FDIR hash information in Rx descriptors. 1446 */ 1447 enum rte_fdir_status_mode { 1448 RTE_FDIR_NO_REPORT_STATUS = 0, /**< Never report FDIR hash. */ 1449 RTE_FDIR_REPORT_STATUS, /**< Only report FDIR hash for matching pkts. */ 1450 RTE_FDIR_REPORT_STATUS_ALWAYS, /**< Always report FDIR hash. */ 1451 }; 1452 1453 /** 1454 * A structure used to configure the Flow Director (FDIR) feature 1455 * of an Ethernet port. 1456 * 1457 * If mode is RTE_FDIR_MODE_NONE, the pballoc value is ignored. 1458 */ 1459 struct rte_eth_fdir_conf { 1460 enum rte_fdir_mode mode; /**< Flow Director mode. */ 1461 enum rte_eth_fdir_pballoc_type pballoc; /**< Space for FDIR filters. */ 1462 enum rte_fdir_status_mode status; /**< How to report FDIR hash. */ 1463 /** Rx queue of packets matching a "drop" filter in perfect mode. */ 1464 uint8_t drop_queue; 1465 struct rte_eth_fdir_masks mask; 1466 /** Flex payload configuration. */ 1467 struct rte_eth_fdir_flex_conf flex_conf; 1468 }; 1469 1470 #define rte_fdir_conf rte_eth_fdir_conf 1471 1472 /** 1473 * UDP tunneling configuration. 1474 * 1475 * Used to configure the classifier of a device, 1476 * associating an UDP port with a type of tunnel. 1477 * 1478 * Some NICs may need such configuration to properly parse a tunnel 1479 * with any standard or custom UDP port. 1480 */ 1481 struct rte_eth_udp_tunnel { 1482 uint16_t udp_port; /**< UDP port used for the tunnel. */ 1483 uint8_t prot_type; /**< Tunnel type. @see rte_eth_tunnel_type */ 1484 }; 1485 1486 /** 1487 * A structure used to enable/disable specific device interrupts. 1488 */ 1489 struct rte_eth_intr_conf { 1490 /** enable/disable lsc interrupt. 0 (default) - disable, 1 enable */ 1491 uint32_t lsc:1; 1492 /** enable/disable rxq interrupt. 0 (default) - disable, 1 enable */ 1493 uint32_t rxq:1; 1494 /** enable/disable rmv interrupt. 0 (default) - disable, 1 enable */ 1495 uint32_t rmv:1; 1496 }; 1497 1498 #define rte_intr_conf rte_eth_intr_conf 1499 1500 /** 1501 * A structure used to configure an Ethernet port. 1502 * Depending upon the Rx multi-queue mode, extra advanced 1503 * configuration settings may be needed. 1504 */ 1505 struct rte_eth_conf { 1506 uint32_t link_speeds; /**< bitmap of RTE_ETH_LINK_SPEED_XXX of speeds to be 1507 used. RTE_ETH_LINK_SPEED_FIXED disables link 1508 autonegotiation, and a unique speed shall be 1509 set. Otherwise, the bitmap defines the set of 1510 speeds to be advertised. If the special value 1511 RTE_ETH_LINK_SPEED_AUTONEG (0) is used, all speeds 1512 supported are advertised. */ 1513 struct rte_eth_rxmode rxmode; /**< Port Rx configuration. */ 1514 struct rte_eth_txmode txmode; /**< Port Tx configuration. */ 1515 uint32_t lpbk_mode; /**< Loopback operation mode. By default the value 1516 is 0, meaning the loopback mode is disabled. 1517 Read the datasheet of given Ethernet controller 1518 for details. The possible values of this field 1519 are defined in implementation of each driver. */ 1520 struct { 1521 struct rte_eth_rss_conf rss_conf; /**< Port RSS configuration */ 1522 /** Port VMDq+DCB configuration. */ 1523 struct rte_eth_vmdq_dcb_conf vmdq_dcb_conf; 1524 /** Port DCB Rx configuration. */ 1525 struct rte_eth_dcb_rx_conf dcb_rx_conf; 1526 /** Port VMDq Rx configuration. */ 1527 struct rte_eth_vmdq_rx_conf vmdq_rx_conf; 1528 } rx_adv_conf; /**< Port Rx filtering configuration. */ 1529 union { 1530 /** Port VMDq+DCB Tx configuration. */ 1531 struct rte_eth_vmdq_dcb_tx_conf vmdq_dcb_tx_conf; 1532 /** Port DCB Tx configuration. */ 1533 struct rte_eth_dcb_tx_conf dcb_tx_conf; 1534 /** Port VMDq Tx configuration. */ 1535 struct rte_eth_vmdq_tx_conf vmdq_tx_conf; 1536 } tx_adv_conf; /**< Port Tx DCB configuration (union). */ 1537 /** Currently,Priority Flow Control(PFC) are supported,if DCB with PFC 1538 is needed,and the variable must be set RTE_ETH_DCB_PFC_SUPPORT. */ 1539 uint32_t dcb_capability_en; 1540 struct rte_eth_fdir_conf fdir_conf; /**< FDIR configuration. DEPRECATED */ 1541 struct rte_eth_intr_conf intr_conf; /**< Interrupt mode configuration. */ 1542 }; 1543 1544 /** 1545 * Rx offload capabilities of a device. 1546 */ 1547 #define RTE_ETH_RX_OFFLOAD_VLAN_STRIP RTE_BIT64(0) 1548 #define DEV_RX_OFFLOAD_VLAN_STRIP RTE_ETH_RX_OFFLOAD_VLAN_STRIP 1549 #define RTE_ETH_RX_OFFLOAD_IPV4_CKSUM RTE_BIT64(1) 1550 #define DEV_RX_OFFLOAD_IPV4_CKSUM RTE_ETH_RX_OFFLOAD_IPV4_CKSUM 1551 #define RTE_ETH_RX_OFFLOAD_UDP_CKSUM RTE_BIT64(2) 1552 #define DEV_RX_OFFLOAD_UDP_CKSUM RTE_ETH_RX_OFFLOAD_UDP_CKSUM 1553 #define RTE_ETH_RX_OFFLOAD_TCP_CKSUM RTE_BIT64(3) 1554 #define DEV_RX_OFFLOAD_TCP_CKSUM RTE_ETH_RX_OFFLOAD_TCP_CKSUM 1555 #define RTE_ETH_RX_OFFLOAD_TCP_LRO RTE_BIT64(4) 1556 #define DEV_RX_OFFLOAD_TCP_LRO RTE_ETH_RX_OFFLOAD_TCP_LRO 1557 #define RTE_ETH_RX_OFFLOAD_QINQ_STRIP RTE_BIT64(5) 1558 #define DEV_RX_OFFLOAD_QINQ_STRIP RTE_ETH_RX_OFFLOAD_QINQ_STRIP 1559 #define RTE_ETH_RX_OFFLOAD_OUTER_IPV4_CKSUM RTE_BIT64(6) 1560 #define DEV_RX_OFFLOAD_OUTER_IPV4_CKSUM RTE_ETH_RX_OFFLOAD_OUTER_IPV4_CKSUM 1561 #define RTE_ETH_RX_OFFLOAD_MACSEC_STRIP RTE_BIT64(7) 1562 #define DEV_RX_OFFLOAD_MACSEC_STRIP RTE_ETH_RX_OFFLOAD_MACSEC_STRIP 1563 #define RTE_ETH_RX_OFFLOAD_HEADER_SPLIT RTE_BIT64(8) 1564 #define DEV_RX_OFFLOAD_HEADER_SPLIT RTE_ETH_RX_OFFLOAD_HEADER_SPLIT 1565 #define RTE_ETH_RX_OFFLOAD_VLAN_FILTER RTE_BIT64(9) 1566 #define DEV_RX_OFFLOAD_VLAN_FILTER RTE_ETH_RX_OFFLOAD_VLAN_FILTER 1567 #define RTE_ETH_RX_OFFLOAD_VLAN_EXTEND RTE_BIT64(10) 1568 #define DEV_RX_OFFLOAD_VLAN_EXTEND RTE_ETH_RX_OFFLOAD_VLAN_EXTEND 1569 #define RTE_ETH_RX_OFFLOAD_SCATTER RTE_BIT64(13) 1570 #define DEV_RX_OFFLOAD_SCATTER RTE_ETH_RX_OFFLOAD_SCATTER 1571 /** 1572 * Timestamp is set by the driver in RTE_MBUF_DYNFIELD_TIMESTAMP_NAME 1573 * and RTE_MBUF_DYNFLAG_RX_TIMESTAMP_NAME is set in ol_flags. 1574 * The mbuf field and flag are registered when the offload is configured. 1575 */ 1576 #define RTE_ETH_RX_OFFLOAD_TIMESTAMP RTE_BIT64(14) 1577 #define DEV_RX_OFFLOAD_TIMESTAMP RTE_ETH_RX_OFFLOAD_TIMESTAMP 1578 #define RTE_ETH_RX_OFFLOAD_SECURITY RTE_BIT64(15) 1579 #define DEV_RX_OFFLOAD_SECURITY RTE_ETH_RX_OFFLOAD_SECURITY 1580 #define RTE_ETH_RX_OFFLOAD_KEEP_CRC RTE_BIT64(16) 1581 #define DEV_RX_OFFLOAD_KEEP_CRC RTE_ETH_RX_OFFLOAD_KEEP_CRC 1582 #define RTE_ETH_RX_OFFLOAD_SCTP_CKSUM RTE_BIT64(17) 1583 #define DEV_RX_OFFLOAD_SCTP_CKSUM RTE_ETH_RX_OFFLOAD_SCTP_CKSUM 1584 #define RTE_ETH_RX_OFFLOAD_OUTER_UDP_CKSUM RTE_BIT64(18) 1585 #define DEV_RX_OFFLOAD_OUTER_UDP_CKSUM RTE_ETH_RX_OFFLOAD_OUTER_UDP_CKSUM 1586 #define RTE_ETH_RX_OFFLOAD_RSS_HASH RTE_BIT64(19) 1587 #define DEV_RX_OFFLOAD_RSS_HASH RTE_ETH_RX_OFFLOAD_RSS_HASH 1588 #define RTE_ETH_RX_OFFLOAD_BUFFER_SPLIT RTE_BIT64(20) 1589 1590 #define RTE_ETH_RX_OFFLOAD_CHECKSUM (RTE_ETH_RX_OFFLOAD_IPV4_CKSUM | \ 1591 RTE_ETH_RX_OFFLOAD_UDP_CKSUM | \ 1592 RTE_ETH_RX_OFFLOAD_TCP_CKSUM) 1593 #define DEV_RX_OFFLOAD_CHECKSUM RTE_ETH_RX_OFFLOAD_CHECKSUM 1594 #define RTE_ETH_RX_OFFLOAD_VLAN (RTE_ETH_RX_OFFLOAD_VLAN_STRIP | \ 1595 RTE_ETH_RX_OFFLOAD_VLAN_FILTER | \ 1596 RTE_ETH_RX_OFFLOAD_VLAN_EXTEND | \ 1597 RTE_ETH_RX_OFFLOAD_QINQ_STRIP) 1598 #define DEV_RX_OFFLOAD_VLAN RTE_ETH_RX_OFFLOAD_VLAN 1599 1600 /* 1601 * If new Rx offload capabilities are defined, they also must be 1602 * mentioned in rte_rx_offload_names in rte_ethdev.c file. 1603 */ 1604 1605 /** 1606 * Tx offload capabilities of a device. 1607 */ 1608 #define RTE_ETH_TX_OFFLOAD_VLAN_INSERT RTE_BIT64(0) 1609 #define DEV_TX_OFFLOAD_VLAN_INSERT RTE_ETH_TX_OFFLOAD_VLAN_INSERT 1610 #define RTE_ETH_TX_OFFLOAD_IPV4_CKSUM RTE_BIT64(1) 1611 #define DEV_TX_OFFLOAD_IPV4_CKSUM RTE_ETH_TX_OFFLOAD_IPV4_CKSUM 1612 #define RTE_ETH_TX_OFFLOAD_UDP_CKSUM RTE_BIT64(2) 1613 #define DEV_TX_OFFLOAD_UDP_CKSUM RTE_ETH_TX_OFFLOAD_UDP_CKSUM 1614 #define RTE_ETH_TX_OFFLOAD_TCP_CKSUM RTE_BIT64(3) 1615 #define DEV_TX_OFFLOAD_TCP_CKSUM RTE_ETH_TX_OFFLOAD_TCP_CKSUM 1616 #define RTE_ETH_TX_OFFLOAD_SCTP_CKSUM RTE_BIT64(4) 1617 #define DEV_TX_OFFLOAD_SCTP_CKSUM RTE_ETH_TX_OFFLOAD_SCTP_CKSUM 1618 #define RTE_ETH_TX_OFFLOAD_TCP_TSO RTE_BIT64(5) 1619 #define DEV_TX_OFFLOAD_TCP_TSO RTE_ETH_TX_OFFLOAD_TCP_TSO 1620 #define RTE_ETH_TX_OFFLOAD_UDP_TSO RTE_BIT64(6) 1621 #define DEV_TX_OFFLOAD_UDP_TSO RTE_ETH_TX_OFFLOAD_UDP_TSO 1622 #define RTE_ETH_TX_OFFLOAD_OUTER_IPV4_CKSUM RTE_BIT64(7) /**< Used for tunneling packet. */ 1623 #define DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM RTE_ETH_TX_OFFLOAD_OUTER_IPV4_CKSUM 1624 #define RTE_ETH_TX_OFFLOAD_QINQ_INSERT RTE_BIT64(8) 1625 #define DEV_TX_OFFLOAD_QINQ_INSERT RTE_ETH_TX_OFFLOAD_QINQ_INSERT 1626 #define RTE_ETH_TX_OFFLOAD_VXLAN_TNL_TSO RTE_BIT64(9) /**< Used for tunneling packet. */ 1627 #define DEV_TX_OFFLOAD_VXLAN_TNL_TSO RTE_ETH_TX_OFFLOAD_VXLAN_TNL_TSO 1628 #define RTE_ETH_TX_OFFLOAD_GRE_TNL_TSO RTE_BIT64(10) /**< Used for tunneling packet. */ 1629 #define DEV_TX_OFFLOAD_GRE_TNL_TSO RTE_ETH_TX_OFFLOAD_GRE_TNL_TSO 1630 #define RTE_ETH_TX_OFFLOAD_IPIP_TNL_TSO RTE_BIT64(11) /**< Used for tunneling packet. */ 1631 #define DEV_TX_OFFLOAD_IPIP_TNL_TSO RTE_ETH_TX_OFFLOAD_IPIP_TNL_TSO 1632 #define RTE_ETH_TX_OFFLOAD_GENEVE_TNL_TSO RTE_BIT64(12) /**< Used for tunneling packet. */ 1633 #define DEV_TX_OFFLOAD_GENEVE_TNL_TSO RTE_ETH_TX_OFFLOAD_GENEVE_TNL_TSO 1634 #define RTE_ETH_TX_OFFLOAD_MACSEC_INSERT RTE_BIT64(13) 1635 #define DEV_TX_OFFLOAD_MACSEC_INSERT RTE_ETH_TX_OFFLOAD_MACSEC_INSERT 1636 /** 1637 * Multiple threads can invoke rte_eth_tx_burst() concurrently on the same 1638 * Tx queue without SW lock. 1639 */ 1640 #define RTE_ETH_TX_OFFLOAD_MT_LOCKFREE RTE_BIT64(14) 1641 #define DEV_TX_OFFLOAD_MT_LOCKFREE RTE_ETH_TX_OFFLOAD_MT_LOCKFREE 1642 /** Device supports multi segment send. */ 1643 #define RTE_ETH_TX_OFFLOAD_MULTI_SEGS RTE_BIT64(15) 1644 #define DEV_TX_OFFLOAD_MULTI_SEGS RTE_ETH_TX_OFFLOAD_MULTI_SEGS 1645 /** 1646 * Device supports optimization for fast release of mbufs. 1647 * When set application must guarantee that per-queue all mbufs comes from 1648 * the same mempool and has refcnt = 1. 1649 */ 1650 #define RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE RTE_BIT64(16) 1651 #define DEV_TX_OFFLOAD_MBUF_FAST_FREE RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE 1652 #define RTE_ETH_TX_OFFLOAD_SECURITY RTE_BIT64(17) 1653 #define DEV_TX_OFFLOAD_SECURITY RTE_ETH_TX_OFFLOAD_SECURITY 1654 /** 1655 * Device supports generic UDP tunneled packet TSO. 1656 * Application must set RTE_MBUF_F_TX_TUNNEL_UDP and other mbuf fields required 1657 * for tunnel TSO. 1658 */ 1659 #define RTE_ETH_TX_OFFLOAD_UDP_TNL_TSO RTE_BIT64(18) 1660 #define DEV_TX_OFFLOAD_UDP_TNL_TSO RTE_ETH_TX_OFFLOAD_UDP_TNL_TSO 1661 /** 1662 * Device supports generic IP tunneled packet TSO. 1663 * Application must set RTE_MBUF_F_TX_TUNNEL_IP and other mbuf fields required 1664 * for tunnel TSO. 1665 */ 1666 #define RTE_ETH_TX_OFFLOAD_IP_TNL_TSO RTE_BIT64(19) 1667 #define DEV_TX_OFFLOAD_IP_TNL_TSO RTE_ETH_TX_OFFLOAD_IP_TNL_TSO 1668 /** Device supports outer UDP checksum */ 1669 #define RTE_ETH_TX_OFFLOAD_OUTER_UDP_CKSUM RTE_BIT64(20) 1670 #define DEV_TX_OFFLOAD_OUTER_UDP_CKSUM RTE_ETH_TX_OFFLOAD_OUTER_UDP_CKSUM 1671 /** 1672 * Device sends on time read from RTE_MBUF_DYNFIELD_TIMESTAMP_NAME 1673 * if RTE_MBUF_DYNFLAG_TX_TIMESTAMP_NAME is set in ol_flags. 1674 * The mbuf field and flag are registered when the offload is configured. 1675 */ 1676 #define RTE_ETH_TX_OFFLOAD_SEND_ON_TIMESTAMP RTE_BIT64(21) 1677 #define DEV_TX_OFFLOAD_SEND_ON_TIMESTAMP RTE_ETH_TX_OFFLOAD_SEND_ON_TIMESTAMP 1678 /* 1679 * If new Tx offload capabilities are defined, they also must be 1680 * mentioned in rte_tx_offload_names in rte_ethdev.c file. 1681 */ 1682 1683 /**@{@name Device capabilities 1684 * Non-offload capabilities reported in rte_eth_dev_info.dev_capa. 1685 */ 1686 /** Device supports Rx queue setup after device started. */ 1687 #define RTE_ETH_DEV_CAPA_RUNTIME_RX_QUEUE_SETUP RTE_BIT64(0) 1688 /** Device supports Tx queue setup after device started. */ 1689 #define RTE_ETH_DEV_CAPA_RUNTIME_TX_QUEUE_SETUP RTE_BIT64(1) 1690 /** 1691 * Device supports shared Rx queue among ports within Rx domain and 1692 * switch domain. Mbufs are consumed by shared Rx queue instead of 1693 * each queue. Multiple groups are supported by share_group of Rx 1694 * queue configuration. Shared Rx queue is identified by PMD using 1695 * share_qid of Rx queue configuration. Polling any port in the group 1696 * receive packets of all member ports, source port identified by 1697 * mbuf->port field. 1698 */ 1699 #define RTE_ETH_DEV_CAPA_RXQ_SHARE RTE_BIT64(2) 1700 /** Device supports keeping flow rules across restart. */ 1701 #define RTE_ETH_DEV_CAPA_FLOW_RULE_KEEP RTE_BIT64(3) 1702 /** Device supports keeping shared flow objects across restart. */ 1703 #define RTE_ETH_DEV_CAPA_FLOW_SHARED_OBJECT_KEEP RTE_BIT64(4) 1704 /**@}*/ 1705 1706 /* 1707 * Fallback default preferred Rx/Tx port parameters. 1708 * These are used if an application requests default parameters 1709 * but the PMD does not provide preferred values. 1710 */ 1711 #define RTE_ETH_DEV_FALLBACK_RX_RINGSIZE 512 1712 #define RTE_ETH_DEV_FALLBACK_TX_RINGSIZE 512 1713 #define RTE_ETH_DEV_FALLBACK_RX_NBQUEUES 1 1714 #define RTE_ETH_DEV_FALLBACK_TX_NBQUEUES 1 1715 1716 /** 1717 * Preferred Rx/Tx port parameters. 1718 * There are separate instances of this structure for transmission 1719 * and reception respectively. 1720 */ 1721 struct rte_eth_dev_portconf { 1722 uint16_t burst_size; /**< Device-preferred burst size */ 1723 uint16_t ring_size; /**< Device-preferred size of queue rings */ 1724 uint16_t nb_queues; /**< Device-preferred number of queues */ 1725 }; 1726 1727 /** 1728 * Default values for switch domain ID when ethdev does not support switch 1729 * domain definitions. 1730 */ 1731 #define RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID (UINT16_MAX) 1732 1733 /** 1734 * Ethernet device associated switch information 1735 */ 1736 struct rte_eth_switch_info { 1737 const char *name; /**< switch name */ 1738 uint16_t domain_id; /**< switch domain ID */ 1739 /** 1740 * Mapping to the devices physical switch port as enumerated from the 1741 * perspective of the embedded interconnect/switch. For SR-IOV enabled 1742 * device this may correspond to the VF_ID of each virtual function, 1743 * but each driver should explicitly define the mapping of switch 1744 * port identifier to that physical interconnect/switch 1745 */ 1746 uint16_t port_id; 1747 /** 1748 * Shared Rx queue sub-domain boundary. Only ports in same Rx domain 1749 * and switch domain can share Rx queue. Valid only if device advertised 1750 * RTE_ETH_DEV_CAPA_RXQ_SHARE capability. 1751 */ 1752 uint16_t rx_domain; 1753 }; 1754 1755 /** 1756 * @warning 1757 * @b EXPERIMENTAL: this structure may change without prior notice. 1758 * 1759 * Ethernet device Rx buffer segmentation capabilities. 1760 */ 1761 struct rte_eth_rxseg_capa { 1762 __extension__ 1763 uint32_t multi_pools:1; /**< Supports receiving to multiple pools.*/ 1764 uint32_t offset_allowed:1; /**< Supports buffer offsets. */ 1765 uint32_t offset_align_log2:4; /**< Required offset alignment. */ 1766 uint16_t max_nseg; /**< Maximum amount of segments to split. */ 1767 uint16_t reserved; /**< Reserved field. */ 1768 }; 1769 1770 /** 1771 * Ethernet device information 1772 */ 1773 1774 /** 1775 * Ethernet device representor port type. 1776 */ 1777 enum rte_eth_representor_type { 1778 RTE_ETH_REPRESENTOR_NONE, /**< not a representor. */ 1779 RTE_ETH_REPRESENTOR_VF, /**< representor of Virtual Function. */ 1780 RTE_ETH_REPRESENTOR_SF, /**< representor of Sub Function. */ 1781 RTE_ETH_REPRESENTOR_PF, /**< representor of Physical Function. */ 1782 }; 1783 1784 /** 1785 * A structure used to retrieve the contextual information of 1786 * an Ethernet device, such as the controlling driver of the 1787 * device, etc... 1788 */ 1789 struct rte_eth_dev_info { 1790 struct rte_device *device; /** Generic device information */ 1791 const char *driver_name; /**< Device Driver name. */ 1792 unsigned int if_index; /**< Index to bound host interface, or 0 if none. 1793 Use if_indextoname() to translate into an interface name. */ 1794 uint16_t min_mtu; /**< Minimum MTU allowed */ 1795 uint16_t max_mtu; /**< Maximum MTU allowed */ 1796 const uint32_t *dev_flags; /**< Device flags */ 1797 uint32_t min_rx_bufsize; /**< Minimum size of Rx buffer. */ 1798 uint32_t max_rx_pktlen; /**< Maximum configurable length of Rx pkt. */ 1799 /** Maximum configurable size of LRO aggregated packet. */ 1800 uint32_t max_lro_pkt_size; 1801 uint16_t max_rx_queues; /**< Maximum number of Rx queues. */ 1802 uint16_t max_tx_queues; /**< Maximum number of Tx queues. */ 1803 uint32_t max_mac_addrs; /**< Maximum number of MAC addresses. */ 1804 uint32_t max_hash_mac_addrs; 1805 /** Maximum number of hash MAC addresses for MTA and UTA. */ 1806 uint16_t max_vfs; /**< Maximum number of VFs. */ 1807 uint16_t max_vmdq_pools; /**< Maximum number of VMDq pools. */ 1808 struct rte_eth_rxseg_capa rx_seg_capa; /**< Segmentation capability.*/ 1809 /** All Rx offload capabilities including all per-queue ones */ 1810 uint64_t rx_offload_capa; 1811 /** All Tx offload capabilities including all per-queue ones */ 1812 uint64_t tx_offload_capa; 1813 /** Device per-queue Rx offload capabilities. */ 1814 uint64_t rx_queue_offload_capa; 1815 /** Device per-queue Tx offload capabilities. */ 1816 uint64_t tx_queue_offload_capa; 1817 /** Device redirection table size, the total number of entries. */ 1818 uint16_t reta_size; 1819 uint8_t hash_key_size; /**< Hash key size in bytes */ 1820 /** Bit mask of RSS offloads, the bit offset also means flow type */ 1821 uint64_t flow_type_rss_offloads; 1822 struct rte_eth_rxconf default_rxconf; /**< Default Rx configuration */ 1823 struct rte_eth_txconf default_txconf; /**< Default Tx configuration */ 1824 uint16_t vmdq_queue_base; /**< First queue ID for VMDq pools. */ 1825 uint16_t vmdq_queue_num; /**< Queue number for VMDq pools. */ 1826 uint16_t vmdq_pool_base; /**< First ID of VMDq pools. */ 1827 struct rte_eth_desc_lim rx_desc_lim; /**< Rx descriptors limits */ 1828 struct rte_eth_desc_lim tx_desc_lim; /**< Tx descriptors limits */ 1829 uint32_t speed_capa; /**< Supported speeds bitmap (RTE_ETH_LINK_SPEED_). */ 1830 /** Configured number of Rx/Tx queues */ 1831 uint16_t nb_rx_queues; /**< Number of Rx queues. */ 1832 uint16_t nb_tx_queues; /**< Number of Tx queues. */ 1833 /** Rx parameter recommendations */ 1834 struct rte_eth_dev_portconf default_rxportconf; 1835 /** Tx parameter recommendations */ 1836 struct rte_eth_dev_portconf default_txportconf; 1837 /** Generic device capabilities (RTE_ETH_DEV_CAPA_). */ 1838 uint64_t dev_capa; 1839 /** 1840 * Switching information for ports on a device with a 1841 * embedded managed interconnect/switch. 1842 */ 1843 struct rte_eth_switch_info switch_info; 1844 1845 uint64_t reserved_64s[2]; /**< Reserved for future fields */ 1846 void *reserved_ptrs[2]; /**< Reserved for future fields */ 1847 }; 1848 1849 /**@{@name Rx/Tx queue states */ 1850 #define RTE_ETH_QUEUE_STATE_STOPPED 0 /**< Queue stopped. */ 1851 #define RTE_ETH_QUEUE_STATE_STARTED 1 /**< Queue started. */ 1852 #define RTE_ETH_QUEUE_STATE_HAIRPIN 2 /**< Queue used for hairpin. */ 1853 /**@}*/ 1854 1855 /** 1856 * Ethernet device Rx queue information structure. 1857 * Used to retrieve information about configured queue. 1858 */ 1859 struct rte_eth_rxq_info { 1860 struct rte_mempool *mp; /**< mempool used by that queue. */ 1861 struct rte_eth_rxconf conf; /**< queue config parameters. */ 1862 uint8_t scattered_rx; /**< scattered packets Rx supported. */ 1863 uint8_t queue_state; /**< one of RTE_ETH_QUEUE_STATE_*. */ 1864 uint16_t nb_desc; /**< configured number of RXDs. */ 1865 uint16_t rx_buf_size; /**< hardware receive buffer size. */ 1866 } __rte_cache_min_aligned; 1867 1868 /** 1869 * Ethernet device Tx queue information structure. 1870 * Used to retrieve information about configured queue. 1871 */ 1872 struct rte_eth_txq_info { 1873 struct rte_eth_txconf conf; /**< queue config parameters. */ 1874 uint16_t nb_desc; /**< configured number of TXDs. */ 1875 uint8_t queue_state; /**< one of RTE_ETH_QUEUE_STATE_*. */ 1876 } __rte_cache_min_aligned; 1877 1878 /* Generic Burst mode flag definition, values can be ORed. */ 1879 1880 /** 1881 * If the queues have different burst mode description, this bit will be set 1882 * by PMD, then the application can iterate to retrieve burst description for 1883 * all other queues. 1884 */ 1885 #define RTE_ETH_BURST_FLAG_PER_QUEUE RTE_BIT64(0) 1886 1887 /** 1888 * Ethernet device Rx/Tx queue packet burst mode information structure. 1889 * Used to retrieve information about packet burst mode setting. 1890 */ 1891 struct rte_eth_burst_mode { 1892 uint64_t flags; /**< The ORed values of RTE_ETH_BURST_FLAG_xxx */ 1893 1894 #define RTE_ETH_BURST_MODE_INFO_SIZE 1024 /**< Maximum size for information */ 1895 char info[RTE_ETH_BURST_MODE_INFO_SIZE]; /**< burst mode information */ 1896 }; 1897 1898 /** Maximum name length for extended statistics counters */ 1899 #define RTE_ETH_XSTATS_NAME_SIZE 64 1900 1901 /** 1902 * An Ethernet device extended statistic structure 1903 * 1904 * This structure is used by rte_eth_xstats_get() to provide 1905 * statistics that are not provided in the generic *rte_eth_stats* 1906 * structure. 1907 * It maps a name ID, corresponding to an index in the array returned 1908 * by rte_eth_xstats_get_names(), to a statistic value. 1909 */ 1910 struct rte_eth_xstat { 1911 uint64_t id; /**< The index in xstats name array. */ 1912 uint64_t value; /**< The statistic counter value. */ 1913 }; 1914 1915 /** 1916 * A name element for extended statistics. 1917 * 1918 * An array of this structure is returned by rte_eth_xstats_get_names(). 1919 * It lists the names of extended statistics for a PMD. The *rte_eth_xstat* 1920 * structure references these names by their array index. 1921 * 1922 * The xstats should follow a common naming scheme. 1923 * Some names are standardized in rte_stats_strings. 1924 * Examples: 1925 * - rx_missed_errors 1926 * - tx_q3_bytes 1927 * - tx_size_128_to_255_packets 1928 */ 1929 struct rte_eth_xstat_name { 1930 char name[RTE_ETH_XSTATS_NAME_SIZE]; /**< The statistic name. */ 1931 }; 1932 1933 #define RTE_ETH_DCB_NUM_TCS 8 1934 #define ETH_DCB_NUM_TCS RTE_ETH_DCB_NUM_TCS 1935 #define RTE_ETH_MAX_VMDQ_POOL 64 1936 #define ETH_MAX_VMDQ_POOL RTE_ETH_MAX_VMDQ_POOL 1937 1938 /** 1939 * A structure used to get the information of queue and 1940 * TC mapping on both Tx and Rx paths. 1941 */ 1942 struct rte_eth_dcb_tc_queue_mapping { 1943 /** Rx queues assigned to tc per Pool */ 1944 struct { 1945 uint16_t base; 1946 uint16_t nb_queue; 1947 } tc_rxq[RTE_ETH_MAX_VMDQ_POOL][RTE_ETH_DCB_NUM_TCS]; 1948 /** Rx queues assigned to tc per Pool */ 1949 struct { 1950 uint16_t base; 1951 uint16_t nb_queue; 1952 } tc_txq[RTE_ETH_MAX_VMDQ_POOL][RTE_ETH_DCB_NUM_TCS]; 1953 }; 1954 1955 /** 1956 * A structure used to get the information of DCB. 1957 * It includes TC UP mapping and queue TC mapping. 1958 */ 1959 struct rte_eth_dcb_info { 1960 uint8_t nb_tcs; /**< number of TCs */ 1961 uint8_t prio_tc[RTE_ETH_DCB_NUM_USER_PRIORITIES]; /**< Priority to tc */ 1962 uint8_t tc_bws[RTE_ETH_DCB_NUM_TCS]; /**< Tx BW percentage for each TC */ 1963 /** Rx queues assigned to tc */ 1964 struct rte_eth_dcb_tc_queue_mapping tc_queue; 1965 }; 1966 1967 /** 1968 * This enum indicates the possible Forward Error Correction (FEC) modes 1969 * of an ethdev port. 1970 */ 1971 enum rte_eth_fec_mode { 1972 RTE_ETH_FEC_NOFEC = 0, /**< FEC is off */ 1973 RTE_ETH_FEC_AUTO, /**< FEC autonegotiation modes */ 1974 RTE_ETH_FEC_BASER, /**< FEC using common algorithm */ 1975 RTE_ETH_FEC_RS, /**< FEC using RS algorithm */ 1976 }; 1977 1978 /* Translate from FEC mode to FEC capa */ 1979 #define RTE_ETH_FEC_MODE_TO_CAPA(x) RTE_BIT32(x) 1980 1981 /* This macro indicates FEC capa mask */ 1982 #define RTE_ETH_FEC_MODE_CAPA_MASK(x) RTE_BIT32(RTE_ETH_FEC_ ## x) 1983 1984 /* A structure used to get capabilities per link speed */ 1985 struct rte_eth_fec_capa { 1986 uint32_t speed; /**< Link speed (see RTE_ETH_SPEED_NUM_*) */ 1987 uint32_t capa; /**< FEC capabilities bitmask */ 1988 }; 1989 1990 #define RTE_ETH_ALL RTE_MAX_ETHPORTS 1991 1992 /* Macros to check for valid port */ 1993 #define RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, retval) do { \ 1994 if (!rte_eth_dev_is_valid_port(port_id)) { \ 1995 RTE_ETHDEV_LOG(ERR, "Invalid port_id=%u\n", port_id); \ 1996 return retval; \ 1997 } \ 1998 } while (0) 1999 2000 #define RTE_ETH_VALID_PORTID_OR_RET(port_id) do { \ 2001 if (!rte_eth_dev_is_valid_port(port_id)) { \ 2002 RTE_ETHDEV_LOG(ERR, "Invalid port_id=%u\n", port_id); \ 2003 return; \ 2004 } \ 2005 } while (0) 2006 2007 /** 2008 * Function type used for Rx packet processing packet callbacks. 2009 * 2010 * The callback function is called on Rx with a burst of packets that have 2011 * been received on the given port and queue. 2012 * 2013 * @param port_id 2014 * The Ethernet port on which Rx is being performed. 2015 * @param queue 2016 * The queue on the Ethernet port which is being used to receive the packets. 2017 * @param pkts 2018 * The burst of packets that have just been received. 2019 * @param nb_pkts 2020 * The number of packets in the burst pointed to by "pkts". 2021 * @param max_pkts 2022 * The max number of packets that can be stored in the "pkts" array. 2023 * @param user_param 2024 * The arbitrary user parameter passed in by the application when the callback 2025 * was originally configured. 2026 * @return 2027 * The number of packets returned to the user. 2028 */ 2029 typedef uint16_t (*rte_rx_callback_fn)(uint16_t port_id, uint16_t queue, 2030 struct rte_mbuf *pkts[], uint16_t nb_pkts, uint16_t max_pkts, 2031 void *user_param); 2032 2033 /** 2034 * Function type used for Tx packet processing packet callbacks. 2035 * 2036 * The callback function is called on Tx with a burst of packets immediately 2037 * before the packets are put onto the hardware queue for transmission. 2038 * 2039 * @param port_id 2040 * The Ethernet port on which Tx is being performed. 2041 * @param queue 2042 * The queue on the Ethernet port which is being used to transmit the packets. 2043 * @param pkts 2044 * The burst of packets that are about to be transmitted. 2045 * @param nb_pkts 2046 * The number of packets in the burst pointed to by "pkts". 2047 * @param user_param 2048 * The arbitrary user parameter passed in by the application when the callback 2049 * was originally configured. 2050 * @return 2051 * The number of packets to be written to the NIC. 2052 */ 2053 typedef uint16_t (*rte_tx_callback_fn)(uint16_t port_id, uint16_t queue, 2054 struct rte_mbuf *pkts[], uint16_t nb_pkts, void *user_param); 2055 2056 /** 2057 * Possible states of an ethdev port. 2058 */ 2059 enum rte_eth_dev_state { 2060 /** Device is unused before being probed. */ 2061 RTE_ETH_DEV_UNUSED = 0, 2062 /** Device is attached when allocated in probing. */ 2063 RTE_ETH_DEV_ATTACHED, 2064 /** Device is in removed state when plug-out is detected. */ 2065 RTE_ETH_DEV_REMOVED, 2066 }; 2067 2068 struct rte_eth_dev_sriov { 2069 uint8_t active; /**< SRIOV is active with 16, 32 or 64 pools */ 2070 uint8_t nb_q_per_pool; /**< Rx queue number per pool */ 2071 uint16_t def_vmdq_idx; /**< Default pool num used for PF */ 2072 uint16_t def_pool_q_idx; /**< Default pool queue start reg index */ 2073 }; 2074 #define RTE_ETH_DEV_SRIOV(dev) ((dev)->data->sriov) 2075 2076 #define RTE_ETH_NAME_MAX_LEN RTE_DEV_NAME_MAX_LEN 2077 2078 #define RTE_ETH_DEV_NO_OWNER 0 2079 2080 #define RTE_ETH_MAX_OWNER_NAME_LEN 64 2081 2082 struct rte_eth_dev_owner { 2083 uint64_t id; /**< The owner unique identifier. */ 2084 char name[RTE_ETH_MAX_OWNER_NAME_LEN]; /**< The owner name. */ 2085 }; 2086 2087 /**@{@name Device flags 2088 * Flags internally saved in rte_eth_dev_data.dev_flags 2089 * and reported in rte_eth_dev_info.dev_flags. 2090 */ 2091 /** PMD supports thread-safe flow operations */ 2092 #define RTE_ETH_DEV_FLOW_OPS_THREAD_SAFE RTE_BIT32(0) 2093 /** Device supports link state interrupt */ 2094 #define RTE_ETH_DEV_INTR_LSC RTE_BIT32(1) 2095 /** Device is a bonded slave */ 2096 #define RTE_ETH_DEV_BONDED_SLAVE RTE_BIT32(2) 2097 /** Device supports device removal interrupt */ 2098 #define RTE_ETH_DEV_INTR_RMV RTE_BIT32(3) 2099 /** Device is port representor */ 2100 #define RTE_ETH_DEV_REPRESENTOR RTE_BIT32(4) 2101 /** Device does not support MAC change after started */ 2102 #define RTE_ETH_DEV_NOLIVE_MAC_ADDR RTE_BIT32(5) 2103 /** 2104 * Queue xstats filled automatically by ethdev layer. 2105 * PMDs filling the queue xstats themselves should not set this flag 2106 */ 2107 #define RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS RTE_BIT32(6) 2108 /**@}*/ 2109 2110 /** 2111 * Iterates over valid ethdev ports owned by a specific owner. 2112 * 2113 * @param port_id 2114 * The ID of the next possible valid owned port. 2115 * @param owner_id 2116 * The owner identifier. 2117 * RTE_ETH_DEV_NO_OWNER means iterate over all valid ownerless ports. 2118 * @return 2119 * Next valid port ID owned by owner_id, RTE_MAX_ETHPORTS if there is none. 2120 */ 2121 uint64_t rte_eth_find_next_owned_by(uint16_t port_id, 2122 const uint64_t owner_id); 2123 2124 /** 2125 * Macro to iterate over all enabled ethdev ports owned by a specific owner. 2126 */ 2127 #define RTE_ETH_FOREACH_DEV_OWNED_BY(p, o) \ 2128 for (p = rte_eth_find_next_owned_by(0, o); \ 2129 (unsigned int)p < (unsigned int)RTE_MAX_ETHPORTS; \ 2130 p = rte_eth_find_next_owned_by(p + 1, o)) 2131 2132 /** 2133 * Iterates over valid ethdev ports. 2134 * 2135 * @param port_id 2136 * The ID of the next possible valid port. 2137 * @return 2138 * Next valid port ID, RTE_MAX_ETHPORTS if there is none. 2139 */ 2140 uint16_t rte_eth_find_next(uint16_t port_id); 2141 2142 /** 2143 * Macro to iterate over all enabled and ownerless ethdev ports. 2144 */ 2145 #define RTE_ETH_FOREACH_DEV(p) \ 2146 RTE_ETH_FOREACH_DEV_OWNED_BY(p, RTE_ETH_DEV_NO_OWNER) 2147 2148 /** 2149 * Iterates over ethdev ports of a specified device. 2150 * 2151 * @param port_id_start 2152 * The ID of the next possible valid port. 2153 * @param parent 2154 * The generic device behind the ports to iterate. 2155 * @return 2156 * Next port ID of the device, possibly port_id_start, 2157 * RTE_MAX_ETHPORTS if there is none. 2158 */ 2159 uint16_t 2160 rte_eth_find_next_of(uint16_t port_id_start, 2161 const struct rte_device *parent); 2162 2163 /** 2164 * Macro to iterate over all ethdev ports of a specified device. 2165 * 2166 * @param port_id 2167 * The ID of the matching port being iterated. 2168 * @param parent 2169 * The rte_device pointer matching the iterated ports. 2170 */ 2171 #define RTE_ETH_FOREACH_DEV_OF(port_id, parent) \ 2172 for (port_id = rte_eth_find_next_of(0, parent); \ 2173 port_id < RTE_MAX_ETHPORTS; \ 2174 port_id = rte_eth_find_next_of(port_id + 1, parent)) 2175 2176 /** 2177 * Iterates over sibling ethdev ports (i.e. sharing the same rte_device). 2178 * 2179 * @param port_id_start 2180 * The ID of the next possible valid sibling port. 2181 * @param ref_port_id 2182 * The ID of a reference port to compare rte_device with. 2183 * @return 2184 * Next sibling port ID, possibly port_id_start or ref_port_id itself, 2185 * RTE_MAX_ETHPORTS if there is none. 2186 */ 2187 uint16_t 2188 rte_eth_find_next_sibling(uint16_t port_id_start, uint16_t ref_port_id); 2189 2190 /** 2191 * Macro to iterate over all ethdev ports sharing the same rte_device 2192 * as the specified port. 2193 * Note: the specified reference port is part of the loop iterations. 2194 * 2195 * @param port_id 2196 * The ID of the matching port being iterated. 2197 * @param ref_port_id 2198 * The ID of the port being compared. 2199 */ 2200 #define RTE_ETH_FOREACH_DEV_SIBLING(port_id, ref_port_id) \ 2201 for (port_id = rte_eth_find_next_sibling(0, ref_port_id); \ 2202 port_id < RTE_MAX_ETHPORTS; \ 2203 port_id = rte_eth_find_next_sibling(port_id + 1, ref_port_id)) 2204 2205 /** 2206 * @warning 2207 * @b EXPERIMENTAL: this API may change without prior notice. 2208 * 2209 * Get a new unique owner identifier. 2210 * An owner identifier is used to owns Ethernet devices by only one DPDK entity 2211 * to avoid multiple management of device by different entities. 2212 * 2213 * @param owner_id 2214 * Owner identifier pointer. 2215 * @return 2216 * Negative errno value on error, 0 on success. 2217 */ 2218 __rte_experimental 2219 int rte_eth_dev_owner_new(uint64_t *owner_id); 2220 2221 /** 2222 * @warning 2223 * @b EXPERIMENTAL: this API may change without prior notice. 2224 * 2225 * Set an Ethernet device owner. 2226 * 2227 * @param port_id 2228 * The identifier of the port to own. 2229 * @param owner 2230 * The owner pointer. 2231 * @return 2232 * Negative errno value on error, 0 on success. 2233 */ 2234 __rte_experimental 2235 int rte_eth_dev_owner_set(const uint16_t port_id, 2236 const struct rte_eth_dev_owner *owner); 2237 2238 /** 2239 * @warning 2240 * @b EXPERIMENTAL: this API may change without prior notice. 2241 * 2242 * Unset Ethernet device owner to make the device ownerless. 2243 * 2244 * @param port_id 2245 * The identifier of port to make ownerless. 2246 * @param owner_id 2247 * The owner identifier. 2248 * @return 2249 * 0 on success, negative errno value on error. 2250 */ 2251 __rte_experimental 2252 int rte_eth_dev_owner_unset(const uint16_t port_id, 2253 const uint64_t owner_id); 2254 2255 /** 2256 * @warning 2257 * @b EXPERIMENTAL: this API may change without prior notice. 2258 * 2259 * Remove owner from all Ethernet devices owned by a specific owner. 2260 * 2261 * @param owner_id 2262 * The owner identifier. 2263 * @return 2264 * 0 on success, negative errno value on error. 2265 */ 2266 __rte_experimental 2267 int rte_eth_dev_owner_delete(const uint64_t owner_id); 2268 2269 /** 2270 * @warning 2271 * @b EXPERIMENTAL: this API may change without prior notice. 2272 * 2273 * Get the owner of an Ethernet device. 2274 * 2275 * @param port_id 2276 * The port identifier. 2277 * @param owner 2278 * The owner structure pointer to fill. 2279 * @return 2280 * 0 on success, negative errno value on error.. 2281 */ 2282 __rte_experimental 2283 int rte_eth_dev_owner_get(const uint16_t port_id, 2284 struct rte_eth_dev_owner *owner); 2285 2286 /** 2287 * Get the number of ports which are usable for the application. 2288 * 2289 * These devices must be iterated by using the macro 2290 * ``RTE_ETH_FOREACH_DEV`` or ``RTE_ETH_FOREACH_DEV_OWNED_BY`` 2291 * to deal with non-contiguous ranges of devices. 2292 * 2293 * @return 2294 * The count of available Ethernet devices. 2295 */ 2296 uint16_t rte_eth_dev_count_avail(void); 2297 2298 /** 2299 * Get the total number of ports which are allocated. 2300 * 2301 * Some devices may not be available for the application. 2302 * 2303 * @return 2304 * The total count of Ethernet devices. 2305 */ 2306 uint16_t rte_eth_dev_count_total(void); 2307 2308 /** 2309 * Convert a numerical speed in Mbps to a bitmap flag that can be used in 2310 * the bitmap link_speeds of the struct rte_eth_conf 2311 * 2312 * @param speed 2313 * Numerical speed value in Mbps 2314 * @param duplex 2315 * RTE_ETH_LINK_[HALF/FULL]_DUPLEX (only for 10/100M speeds) 2316 * @return 2317 * 0 if the speed cannot be mapped 2318 */ 2319 uint32_t rte_eth_speed_bitflag(uint32_t speed, int duplex); 2320 2321 /** 2322 * Get RTE_ETH_RX_OFFLOAD_* flag name. 2323 * 2324 * @param offload 2325 * Offload flag. 2326 * @return 2327 * Offload name or 'UNKNOWN' if the flag cannot be recognised. 2328 */ 2329 const char *rte_eth_dev_rx_offload_name(uint64_t offload); 2330 2331 /** 2332 * Get RTE_ETH_TX_OFFLOAD_* flag name. 2333 * 2334 * @param offload 2335 * Offload flag. 2336 * @return 2337 * Offload name or 'UNKNOWN' if the flag cannot be recognised. 2338 */ 2339 const char *rte_eth_dev_tx_offload_name(uint64_t offload); 2340 2341 /** 2342 * @warning 2343 * @b EXPERIMENTAL: this API may change without prior notice. 2344 * 2345 * Get RTE_ETH_DEV_CAPA_* flag name. 2346 * 2347 * @param capability 2348 * Capability flag. 2349 * @return 2350 * Capability name or 'UNKNOWN' if the flag cannot be recognized. 2351 */ 2352 __rte_experimental 2353 const char *rte_eth_dev_capability_name(uint64_t capability); 2354 2355 /** 2356 * Configure an Ethernet device. 2357 * This function must be invoked first before any other function in the 2358 * Ethernet API. This function can also be re-invoked when a device is in the 2359 * stopped state. 2360 * 2361 * @param port_id 2362 * The port identifier of the Ethernet device to configure. 2363 * @param nb_rx_queue 2364 * The number of receive queues to set up for the Ethernet device. 2365 * @param nb_tx_queue 2366 * The number of transmit queues to set up for the Ethernet device. 2367 * @param eth_conf 2368 * The pointer to the configuration data to be used for the Ethernet device. 2369 * The *rte_eth_conf* structure includes: 2370 * - the hardware offload features to activate, with dedicated fields for 2371 * each statically configurable offload hardware feature provided by 2372 * Ethernet devices, such as IP checksum or VLAN tag stripping for 2373 * example. 2374 * The Rx offload bitfield API is obsolete and will be deprecated. 2375 * Applications should set the ignore_bitfield_offloads bit on *rxmode* 2376 * structure and use offloads field to set per-port offloads instead. 2377 * - Any offloading set in eth_conf->[rt]xmode.offloads must be within 2378 * the [rt]x_offload_capa returned from rte_eth_dev_info_get(). 2379 * Any type of device supported offloading set in the input argument 2380 * eth_conf->[rt]xmode.offloads to rte_eth_dev_configure() is enabled 2381 * on all queues and it can't be disabled in rte_eth_[rt]x_queue_setup() 2382 * - the Receive Side Scaling (RSS) configuration when using multiple Rx 2383 * queues per port. Any RSS hash function set in eth_conf->rss_conf.rss_hf 2384 * must be within the flow_type_rss_offloads provided by drivers via 2385 * rte_eth_dev_info_get() API. 2386 * 2387 * Embedding all configuration information in a single data structure 2388 * is the more flexible method that allows the addition of new features 2389 * without changing the syntax of the API. 2390 * @return 2391 * - 0: Success, device configured. 2392 * - <0: Error code returned by the driver configuration function. 2393 */ 2394 int rte_eth_dev_configure(uint16_t port_id, uint16_t nb_rx_queue, 2395 uint16_t nb_tx_queue, const struct rte_eth_conf *eth_conf); 2396 2397 /** 2398 * Check if an Ethernet device was physically removed. 2399 * 2400 * @param port_id 2401 * The port identifier of the Ethernet device. 2402 * @return 2403 * 1 when the Ethernet device is removed, otherwise 0. 2404 */ 2405 int 2406 rte_eth_dev_is_removed(uint16_t port_id); 2407 2408 /** 2409 * Allocate and set up a receive queue for an Ethernet device. 2410 * 2411 * The function allocates a contiguous block of memory for *nb_rx_desc* 2412 * receive descriptors from a memory zone associated with *socket_id* 2413 * and initializes each receive descriptor with a network buffer allocated 2414 * from the memory pool *mb_pool*. 2415 * 2416 * @param port_id 2417 * The port identifier of the Ethernet device. 2418 * @param rx_queue_id 2419 * The index of the receive queue to set up. 2420 * The value must be in the range [0, nb_rx_queue - 1] previously supplied 2421 * to rte_eth_dev_configure(). 2422 * @param nb_rx_desc 2423 * The number of receive descriptors to allocate for the receive ring. 2424 * @param socket_id 2425 * The *socket_id* argument is the socket identifier in case of NUMA. 2426 * The value can be *SOCKET_ID_ANY* if there is no NUMA constraint for 2427 * the DMA memory allocated for the receive descriptors of the ring. 2428 * @param rx_conf 2429 * The pointer to the configuration data to be used for the receive queue. 2430 * NULL value is allowed, in which case default Rx configuration 2431 * will be used. 2432 * The *rx_conf* structure contains an *rx_thresh* structure with the values 2433 * of the Prefetch, Host, and Write-Back threshold registers of the receive 2434 * ring. 2435 * In addition it contains the hardware offloads features to activate using 2436 * the RTE_ETH_RX_OFFLOAD_* flags. 2437 * If an offloading set in rx_conf->offloads 2438 * hasn't been set in the input argument eth_conf->rxmode.offloads 2439 * to rte_eth_dev_configure(), it is a new added offloading, it must be 2440 * per-queue type and it is enabled for the queue. 2441 * No need to repeat any bit in rx_conf->offloads which has already been 2442 * enabled in rte_eth_dev_configure() at port level. An offloading enabled 2443 * at port level can't be disabled at queue level. 2444 * The configuration structure also contains the pointer to the array 2445 * of the receiving buffer segment descriptions, see rx_seg and rx_nseg 2446 * fields, this extended configuration might be used by split offloads like 2447 * RTE_ETH_RX_OFFLOAD_BUFFER_SPLIT. If mb_pool is not NULL, 2448 * the extended configuration fields must be set to NULL and zero. 2449 * @param mb_pool 2450 * The pointer to the memory pool from which to allocate *rte_mbuf* network 2451 * memory buffers to populate each descriptor of the receive ring. There are 2452 * two options to provide Rx buffer configuration: 2453 * - single pool: 2454 * mb_pool is not NULL, rx_conf.rx_nseg is 0. 2455 * - multiple segments description: 2456 * mb_pool is NULL, rx_conf.rx_seg is not NULL, rx_conf.rx_nseg is not 0. 2457 * Taken only if flag RTE_ETH_RX_OFFLOAD_BUFFER_SPLIT is set in offloads. 2458 * 2459 * @return 2460 * - 0: Success, receive queue correctly set up. 2461 * - -EIO: if device is removed. 2462 * - -ENODEV: if *port_id* is invalid. 2463 * - -EINVAL: The memory pool pointer is null or the size of network buffers 2464 * which can be allocated from this memory pool does not fit the various 2465 * buffer sizes allowed by the device controller. 2466 * - -ENOMEM: Unable to allocate the receive ring descriptors or to 2467 * allocate network memory buffers from the memory pool when 2468 * initializing receive descriptors. 2469 */ 2470 int rte_eth_rx_queue_setup(uint16_t port_id, uint16_t rx_queue_id, 2471 uint16_t nb_rx_desc, unsigned int socket_id, 2472 const struct rte_eth_rxconf *rx_conf, 2473 struct rte_mempool *mb_pool); 2474 2475 /** 2476 * @warning 2477 * @b EXPERIMENTAL: this API may change, or be removed, without prior notice 2478 * 2479 * Allocate and set up a hairpin receive queue for an Ethernet device. 2480 * 2481 * The function set up the selected queue to be used in hairpin. 2482 * 2483 * @param port_id 2484 * The port identifier of the Ethernet device. 2485 * @param rx_queue_id 2486 * The index of the receive queue to set up. 2487 * The value must be in the range [0, nb_rx_queue - 1] previously supplied 2488 * to rte_eth_dev_configure(). 2489 * @param nb_rx_desc 2490 * The number of receive descriptors to allocate for the receive ring. 2491 * 0 means the PMD will use default value. 2492 * @param conf 2493 * The pointer to the hairpin configuration. 2494 * 2495 * @return 2496 * - (0) if successful. 2497 * - (-ENODEV) if *port_id* is invalid. 2498 * - (-ENOTSUP) if hardware doesn't support. 2499 * - (-EINVAL) if bad parameter. 2500 * - (-ENOMEM) if unable to allocate the resources. 2501 */ 2502 __rte_experimental 2503 int rte_eth_rx_hairpin_queue_setup 2504 (uint16_t port_id, uint16_t rx_queue_id, uint16_t nb_rx_desc, 2505 const struct rte_eth_hairpin_conf *conf); 2506 2507 /** 2508 * Allocate and set up a transmit queue for an Ethernet device. 2509 * 2510 * @param port_id 2511 * The port identifier of the Ethernet device. 2512 * @param tx_queue_id 2513 * The index of the transmit queue to set up. 2514 * The value must be in the range [0, nb_tx_queue - 1] previously supplied 2515 * to rte_eth_dev_configure(). 2516 * @param nb_tx_desc 2517 * The number of transmit descriptors to allocate for the transmit ring. 2518 * @param socket_id 2519 * The *socket_id* argument is the socket identifier in case of NUMA. 2520 * Its value can be *SOCKET_ID_ANY* if there is no NUMA constraint for 2521 * the DMA memory allocated for the transmit descriptors of the ring. 2522 * @param tx_conf 2523 * The pointer to the configuration data to be used for the transmit queue. 2524 * NULL value is allowed, in which case default Tx configuration 2525 * will be used. 2526 * The *tx_conf* structure contains the following data: 2527 * - The *tx_thresh* structure with the values of the Prefetch, Host, and 2528 * Write-Back threshold registers of the transmit ring. 2529 * When setting Write-Back threshold to the value greater then zero, 2530 * *tx_rs_thresh* value should be explicitly set to one. 2531 * - The *tx_free_thresh* value indicates the [minimum] number of network 2532 * buffers that must be pending in the transmit ring to trigger their 2533 * [implicit] freeing by the driver transmit function. 2534 * - The *tx_rs_thresh* value indicates the [minimum] number of transmit 2535 * descriptors that must be pending in the transmit ring before setting the 2536 * RS bit on a descriptor by the driver transmit function. 2537 * The *tx_rs_thresh* value should be less or equal then 2538 * *tx_free_thresh* value, and both of them should be less then 2539 * *nb_tx_desc* - 3. 2540 * - The *offloads* member contains Tx offloads to be enabled. 2541 * If an offloading set in tx_conf->offloads 2542 * hasn't been set in the input argument eth_conf->txmode.offloads 2543 * to rte_eth_dev_configure(), it is a new added offloading, it must be 2544 * per-queue type and it is enabled for the queue. 2545 * No need to repeat any bit in tx_conf->offloads which has already been 2546 * enabled in rte_eth_dev_configure() at port level. An offloading enabled 2547 * at port level can't be disabled at queue level. 2548 * 2549 * Note that setting *tx_free_thresh* or *tx_rs_thresh* value to 0 forces 2550 * the transmit function to use default values. 2551 * @return 2552 * - 0: Success, the transmit queue is correctly set up. 2553 * - -ENOMEM: Unable to allocate the transmit ring descriptors. 2554 */ 2555 int rte_eth_tx_queue_setup(uint16_t port_id, uint16_t tx_queue_id, 2556 uint16_t nb_tx_desc, unsigned int socket_id, 2557 const struct rte_eth_txconf *tx_conf); 2558 2559 /** 2560 * @warning 2561 * @b EXPERIMENTAL: this API may change, or be removed, without prior notice 2562 * 2563 * Allocate and set up a transmit hairpin queue for an Ethernet device. 2564 * 2565 * @param port_id 2566 * The port identifier of the Ethernet device. 2567 * @param tx_queue_id 2568 * The index of the transmit queue to set up. 2569 * The value must be in the range [0, nb_tx_queue - 1] previously supplied 2570 * to rte_eth_dev_configure(). 2571 * @param nb_tx_desc 2572 * The number of transmit descriptors to allocate for the transmit ring. 2573 * 0 to set default PMD value. 2574 * @param conf 2575 * The hairpin configuration. 2576 * 2577 * @return 2578 * - (0) if successful. 2579 * - (-ENODEV) if *port_id* is invalid. 2580 * - (-ENOTSUP) if hardware doesn't support. 2581 * - (-EINVAL) if bad parameter. 2582 * - (-ENOMEM) if unable to allocate the resources. 2583 */ 2584 __rte_experimental 2585 int rte_eth_tx_hairpin_queue_setup 2586 (uint16_t port_id, uint16_t tx_queue_id, uint16_t nb_tx_desc, 2587 const struct rte_eth_hairpin_conf *conf); 2588 2589 /** 2590 * @warning 2591 * @b EXPERIMENTAL: this API may change, or be removed, without prior notice 2592 * 2593 * Get all the hairpin peer Rx / Tx ports of the current port. 2594 * The caller should ensure that the array is large enough to save the ports 2595 * list. 2596 * 2597 * @param port_id 2598 * The port identifier of the Ethernet device. 2599 * @param peer_ports 2600 * Pointer to the array to store the peer ports list. 2601 * @param len 2602 * Length of the array to store the port identifiers. 2603 * @param direction 2604 * Current port to peer port direction 2605 * positive - current used as Tx to get all peer Rx ports. 2606 * zero - current used as Rx to get all peer Tx ports. 2607 * 2608 * @return 2609 * - (0 or positive) actual peer ports number. 2610 * - (-EINVAL) if bad parameter. 2611 * - (-ENODEV) if *port_id* invalid 2612 * - (-ENOTSUP) if hardware doesn't support. 2613 * - Others detailed errors from PMD drivers. 2614 */ 2615 __rte_experimental 2616 int rte_eth_hairpin_get_peer_ports(uint16_t port_id, uint16_t *peer_ports, 2617 size_t len, uint32_t direction); 2618 2619 /** 2620 * @warning 2621 * @b EXPERIMENTAL: this API may change, or be removed, without prior notice 2622 * 2623 * Bind all hairpin Tx queues of one port to the Rx queues of the peer port. 2624 * It is only allowed to call this function after all hairpin queues are 2625 * configured properly and the devices are in started state. 2626 * 2627 * @param tx_port 2628 * The identifier of the Tx port. 2629 * @param rx_port 2630 * The identifier of peer Rx port. 2631 * RTE_MAX_ETHPORTS is allowed for the traversal of all devices. 2632 * Rx port ID could have the same value as Tx port ID. 2633 * 2634 * @return 2635 * - (0) if successful. 2636 * - (-ENODEV) if Tx port ID is invalid. 2637 * - (-EBUSY) if device is not in started state. 2638 * - (-ENOTSUP) if hardware doesn't support. 2639 * - Others detailed errors from PMD drivers. 2640 */ 2641 __rte_experimental 2642 int rte_eth_hairpin_bind(uint16_t tx_port, uint16_t rx_port); 2643 2644 /** 2645 * @warning 2646 * @b EXPERIMENTAL: this API may change, or be removed, without prior notice 2647 * 2648 * Unbind all hairpin Tx queues of one port from the Rx queues of the peer port. 2649 * This should be called before closing the Tx or Rx devices, if the bind 2650 * function is called before. 2651 * After unbinding the hairpin ports pair, it is allowed to bind them again. 2652 * Changing queues configuration should be after stopping the device(s). 2653 * 2654 * @param tx_port 2655 * The identifier of the Tx port. 2656 * @param rx_port 2657 * The identifier of peer Rx port. 2658 * RTE_MAX_ETHPORTS is allowed for traversal of all devices. 2659 * Rx port ID could have the same value as Tx port ID. 2660 * 2661 * @return 2662 * - (0) if successful. 2663 * - (-ENODEV) if Tx port ID is invalid. 2664 * - (-EBUSY) if device is in stopped state. 2665 * - (-ENOTSUP) if hardware doesn't support. 2666 * - Others detailed errors from PMD drivers. 2667 */ 2668 __rte_experimental 2669 int rte_eth_hairpin_unbind(uint16_t tx_port, uint16_t rx_port); 2670 2671 /** 2672 * Return the NUMA socket to which an Ethernet device is connected 2673 * 2674 * @param port_id 2675 * The port identifier of the Ethernet device 2676 * @return 2677 * The NUMA socket ID to which the Ethernet device is connected or 2678 * a default of zero if the socket could not be determined. 2679 * -1 is returned is the port_id value is out of range. 2680 */ 2681 int rte_eth_dev_socket_id(uint16_t port_id); 2682 2683 /** 2684 * Check if port_id of device is attached 2685 * 2686 * @param port_id 2687 * The port identifier of the Ethernet device 2688 * @return 2689 * - 0 if port is out of range or not attached 2690 * - 1 if device is attached 2691 */ 2692 int rte_eth_dev_is_valid_port(uint16_t port_id); 2693 2694 /** 2695 * Start specified Rx queue of a port. It is used when rx_deferred_start 2696 * flag of the specified queue is true. 2697 * 2698 * @param port_id 2699 * The port identifier of the Ethernet device 2700 * @param rx_queue_id 2701 * The index of the Rx queue to update the ring. 2702 * The value must be in the range [0, nb_rx_queue - 1] previously supplied 2703 * to rte_eth_dev_configure(). 2704 * @return 2705 * - 0: Success, the receive queue is started. 2706 * - -ENODEV: if *port_id* is invalid. 2707 * - -EINVAL: The queue_id out of range or belong to hairpin. 2708 * - -EIO: if device is removed. 2709 * - -ENOTSUP: The function not supported in PMD driver. 2710 */ 2711 int rte_eth_dev_rx_queue_start(uint16_t port_id, uint16_t rx_queue_id); 2712 2713 /** 2714 * Stop specified Rx queue of a port 2715 * 2716 * @param port_id 2717 * The port identifier of the Ethernet device 2718 * @param rx_queue_id 2719 * The index of the Rx queue to update the ring. 2720 * The value must be in the range [0, nb_rx_queue - 1] previously supplied 2721 * to rte_eth_dev_configure(). 2722 * @return 2723 * - 0: Success, the receive queue is stopped. 2724 * - -ENODEV: if *port_id* is invalid. 2725 * - -EINVAL: The queue_id out of range or belong to hairpin. 2726 * - -EIO: if device is removed. 2727 * - -ENOTSUP: The function not supported in PMD driver. 2728 */ 2729 int rte_eth_dev_rx_queue_stop(uint16_t port_id, uint16_t rx_queue_id); 2730 2731 /** 2732 * Start Tx for specified queue of a port. It is used when tx_deferred_start 2733 * flag of the specified queue is true. 2734 * 2735 * @param port_id 2736 * The port identifier of the Ethernet device 2737 * @param tx_queue_id 2738 * The index of the Tx queue to update the ring. 2739 * The value must be in the range [0, nb_tx_queue - 1] previously supplied 2740 * to rte_eth_dev_configure(). 2741 * @return 2742 * - 0: Success, the transmit queue is started. 2743 * - -ENODEV: if *port_id* is invalid. 2744 * - -EINVAL: The queue_id out of range or belong to hairpin. 2745 * - -EIO: if device is removed. 2746 * - -ENOTSUP: The function not supported in PMD driver. 2747 */ 2748 int rte_eth_dev_tx_queue_start(uint16_t port_id, uint16_t tx_queue_id); 2749 2750 /** 2751 * Stop specified Tx queue of a port 2752 * 2753 * @param port_id 2754 * The port identifier of the Ethernet device 2755 * @param tx_queue_id 2756 * The index of the Tx queue to update the ring. 2757 * The value must be in the range [0, nb_tx_queue - 1] previously supplied 2758 * to rte_eth_dev_configure(). 2759 * @return 2760 * - 0: Success, the transmit queue is stopped. 2761 * - -ENODEV: if *port_id* is invalid. 2762 * - -EINVAL: The queue_id out of range or belong to hairpin. 2763 * - -EIO: if device is removed. 2764 * - -ENOTSUP: The function not supported in PMD driver. 2765 */ 2766 int rte_eth_dev_tx_queue_stop(uint16_t port_id, uint16_t tx_queue_id); 2767 2768 /** 2769 * Start an Ethernet device. 2770 * 2771 * The device start step is the last one and consists of setting the configured 2772 * offload features and in starting the transmit and the receive units of the 2773 * device. 2774 * 2775 * Device RTE_ETH_DEV_NOLIVE_MAC_ADDR flag causes MAC address to be set before 2776 * PMD port start callback function is invoked. 2777 * 2778 * On success, all basic functions exported by the Ethernet API (link status, 2779 * receive/transmit, and so on) can be invoked. 2780 * 2781 * @param port_id 2782 * The port identifier of the Ethernet device. 2783 * @return 2784 * - 0: Success, Ethernet device started. 2785 * - <0: Error code of the driver device start function. 2786 */ 2787 int rte_eth_dev_start(uint16_t port_id); 2788 2789 /** 2790 * Stop an Ethernet device. The device can be restarted with a call to 2791 * rte_eth_dev_start() 2792 * 2793 * @param port_id 2794 * The port identifier of the Ethernet device. 2795 * @return 2796 * - 0: Success, Ethernet device stopped. 2797 * - <0: Error code of the driver device stop function. 2798 */ 2799 int rte_eth_dev_stop(uint16_t port_id); 2800 2801 /** 2802 * Link up an Ethernet device. 2803 * 2804 * Set device link up will re-enable the device Rx/Tx 2805 * functionality after it is previously set device linked down. 2806 * 2807 * @param port_id 2808 * The port identifier of the Ethernet device. 2809 * @return 2810 * - 0: Success, Ethernet device linked up. 2811 * - <0: Error code of the driver device link up function. 2812 */ 2813 int rte_eth_dev_set_link_up(uint16_t port_id); 2814 2815 /** 2816 * Link down an Ethernet device. 2817 * The device Rx/Tx functionality will be disabled if success, 2818 * and it can be re-enabled with a call to 2819 * rte_eth_dev_set_link_up() 2820 * 2821 * @param port_id 2822 * The port identifier of the Ethernet device. 2823 */ 2824 int rte_eth_dev_set_link_down(uint16_t port_id); 2825 2826 /** 2827 * Close a stopped Ethernet device. The device cannot be restarted! 2828 * The function frees all port resources. 2829 * 2830 * @param port_id 2831 * The port identifier of the Ethernet device. 2832 * @return 2833 * - Zero if the port is closed successfully. 2834 * - Negative if something went wrong. 2835 */ 2836 int rte_eth_dev_close(uint16_t port_id); 2837 2838 /** 2839 * Reset a Ethernet device and keep its port ID. 2840 * 2841 * When a port has to be reset passively, the DPDK application can invoke 2842 * this function. For example when a PF is reset, all its VFs should also 2843 * be reset. Normally a DPDK application can invoke this function when 2844 * RTE_ETH_EVENT_INTR_RESET event is detected, but can also use it to start 2845 * a port reset in other circumstances. 2846 * 2847 * When this function is called, it first stops the port and then calls the 2848 * PMD specific dev_uninit( ) and dev_init( ) to return the port to initial 2849 * state, in which no Tx and Rx queues are setup, as if the port has been 2850 * reset and not started. The port keeps the port ID it had before the 2851 * function call. 2852 * 2853 * After calling rte_eth_dev_reset( ), the application should use 2854 * rte_eth_dev_configure( ), rte_eth_rx_queue_setup( ), 2855 * rte_eth_tx_queue_setup( ), and rte_eth_dev_start( ) 2856 * to reconfigure the device as appropriate. 2857 * 2858 * Note: To avoid unexpected behavior, the application should stop calling 2859 * Tx and Rx functions before calling rte_eth_dev_reset( ). For thread 2860 * safety, all these controlling functions should be called from the same 2861 * thread. 2862 * 2863 * @param port_id 2864 * The port identifier of the Ethernet device. 2865 * 2866 * @return 2867 * - (0) if successful. 2868 * - (-ENODEV) if *port_id* is invalid. 2869 * - (-ENOTSUP) if hardware doesn't support this function. 2870 * - (-EPERM) if not ran from the primary process. 2871 * - (-EIO) if re-initialisation failed or device is removed. 2872 * - (-ENOMEM) if the reset failed due to OOM. 2873 * - (-EAGAIN) if the reset temporarily failed and should be retried later. 2874 */ 2875 int rte_eth_dev_reset(uint16_t port_id); 2876 2877 /** 2878 * Enable receipt in promiscuous mode for an Ethernet device. 2879 * 2880 * @param port_id 2881 * The port identifier of the Ethernet device. 2882 * @return 2883 * - (0) if successful. 2884 * - (-ENOTSUP) if support for promiscuous_enable() does not exist 2885 * for the device. 2886 * - (-ENODEV) if *port_id* invalid. 2887 */ 2888 int rte_eth_promiscuous_enable(uint16_t port_id); 2889 2890 /** 2891 * Disable receipt in promiscuous mode for an Ethernet device. 2892 * 2893 * @param port_id 2894 * The port identifier of the Ethernet device. 2895 * @return 2896 * - (0) if successful. 2897 * - (-ENOTSUP) if support for promiscuous_disable() does not exist 2898 * for the device. 2899 * - (-ENODEV) if *port_id* invalid. 2900 */ 2901 int rte_eth_promiscuous_disable(uint16_t port_id); 2902 2903 /** 2904 * Return the value of promiscuous mode for an Ethernet device. 2905 * 2906 * @param port_id 2907 * The port identifier of the Ethernet device. 2908 * @return 2909 * - (1) if promiscuous is enabled 2910 * - (0) if promiscuous is disabled. 2911 * - (-1) on error 2912 */ 2913 int rte_eth_promiscuous_get(uint16_t port_id); 2914 2915 /** 2916 * Enable the receipt of any multicast frame by an Ethernet device. 2917 * 2918 * @param port_id 2919 * The port identifier of the Ethernet device. 2920 * @return 2921 * - (0) if successful. 2922 * - (-ENOTSUP) if support for allmulticast_enable() does not exist 2923 * for the device. 2924 * - (-ENODEV) if *port_id* invalid. 2925 */ 2926 int rte_eth_allmulticast_enable(uint16_t port_id); 2927 2928 /** 2929 * Disable the receipt of all multicast frames by an Ethernet device. 2930 * 2931 * @param port_id 2932 * The port identifier of the Ethernet device. 2933 * @return 2934 * - (0) if successful. 2935 * - (-ENOTSUP) if support for allmulticast_disable() does not exist 2936 * for the device. 2937 * - (-ENODEV) if *port_id* invalid. 2938 */ 2939 int rte_eth_allmulticast_disable(uint16_t port_id); 2940 2941 /** 2942 * Return the value of allmulticast mode for an Ethernet device. 2943 * 2944 * @param port_id 2945 * The port identifier of the Ethernet device. 2946 * @return 2947 * - (1) if allmulticast is enabled 2948 * - (0) if allmulticast is disabled. 2949 * - (-1) on error 2950 */ 2951 int rte_eth_allmulticast_get(uint16_t port_id); 2952 2953 /** 2954 * Retrieve the link status (up/down), the duplex mode (half/full), 2955 * the negotiation (auto/fixed), and if available, the speed (Mbps). 2956 * 2957 * It might need to wait up to 9 seconds. 2958 * @see rte_eth_link_get_nowait. 2959 * 2960 * @param port_id 2961 * The port identifier of the Ethernet device. 2962 * @param link 2963 * Link information written back. 2964 * @return 2965 * - (0) if successful. 2966 * - (-ENOTSUP) if the function is not supported in PMD driver. 2967 * - (-ENODEV) if *port_id* invalid. 2968 * - (-EINVAL) if bad parameter. 2969 */ 2970 int rte_eth_link_get(uint16_t port_id, struct rte_eth_link *link); 2971 2972 /** 2973 * Retrieve the link status (up/down), the duplex mode (half/full), 2974 * the negotiation (auto/fixed), and if available, the speed (Mbps). 2975 * 2976 * @param port_id 2977 * The port identifier of the Ethernet device. 2978 * @param link 2979 * Link information written back. 2980 * @return 2981 * - (0) if successful. 2982 * - (-ENOTSUP) if the function is not supported in PMD driver. 2983 * - (-ENODEV) if *port_id* invalid. 2984 * - (-EINVAL) if bad parameter. 2985 */ 2986 int rte_eth_link_get_nowait(uint16_t port_id, struct rte_eth_link *link); 2987 2988 /** 2989 * @warning 2990 * @b EXPERIMENTAL: this API may change without prior notice. 2991 * 2992 * The function converts a link_speed to a string. It handles all special 2993 * values like unknown or none speed. 2994 * 2995 * @param link_speed 2996 * link_speed of rte_eth_link struct 2997 * @return 2998 * Link speed in textual format. It's pointer to immutable memory. 2999 * No free is required. 3000 */ 3001 __rte_experimental 3002 const char *rte_eth_link_speed_to_str(uint32_t link_speed); 3003 3004 /** 3005 * @warning 3006 * @b EXPERIMENTAL: this API may change without prior notice. 3007 * 3008 * The function converts a rte_eth_link struct representing a link status to 3009 * a string. 3010 * 3011 * @param str 3012 * A pointer to a string to be filled with textual representation of 3013 * device status. At least RTE_ETH_LINK_MAX_STR_LEN bytes should be allocated to 3014 * store default link status text. 3015 * @param len 3016 * Length of available memory at 'str' string. 3017 * @param eth_link 3018 * Link status returned by rte_eth_link_get function 3019 * @return 3020 * Number of bytes written to str array or -EINVAL if bad parameter. 3021 */ 3022 __rte_experimental 3023 int rte_eth_link_to_str(char *str, size_t len, 3024 const struct rte_eth_link *eth_link); 3025 3026 /** 3027 * Retrieve the general I/O statistics of an Ethernet device. 3028 * 3029 * @param port_id 3030 * The port identifier of the Ethernet device. 3031 * @param stats 3032 * A pointer to a structure of type *rte_eth_stats* to be filled with 3033 * the values of device counters for the following set of statistics: 3034 * - *ipackets* with the total of successfully received packets. 3035 * - *opackets* with the total of successfully transmitted packets. 3036 * - *ibytes* with the total of successfully received bytes. 3037 * - *obytes* with the total of successfully transmitted bytes. 3038 * - *ierrors* with the total of erroneous received packets. 3039 * - *oerrors* with the total of failed transmitted packets. 3040 * @return 3041 * Zero if successful. Non-zero otherwise. 3042 */ 3043 int rte_eth_stats_get(uint16_t port_id, struct rte_eth_stats *stats); 3044 3045 /** 3046 * Reset the general I/O statistics of an Ethernet device. 3047 * 3048 * @param port_id 3049 * The port identifier of the Ethernet device. 3050 * @return 3051 * - (0) if device notified to reset stats. 3052 * - (-ENOTSUP) if hardware doesn't support. 3053 * - (-ENODEV) if *port_id* invalid. 3054 * - (<0): Error code of the driver stats reset function. 3055 */ 3056 int rte_eth_stats_reset(uint16_t port_id); 3057 3058 /** 3059 * Retrieve names of extended statistics of an Ethernet device. 3060 * 3061 * There is an assumption that 'xstat_names' and 'xstats' arrays are matched 3062 * by array index: 3063 * xstats_names[i].name => xstats[i].value 3064 * 3065 * And the array index is same with id field of 'struct rte_eth_xstat': 3066 * xstats[i].id == i 3067 * 3068 * This assumption makes key-value pair matching less flexible but simpler. 3069 * 3070 * @param port_id 3071 * The port identifier of the Ethernet device. 3072 * @param xstats_names 3073 * An rte_eth_xstat_name array of at least *size* elements to 3074 * be filled. If set to NULL, the function returns the required number 3075 * of elements. 3076 * @param size 3077 * The size of the xstats_names array (number of elements). 3078 * @return 3079 * - A positive value lower or equal to size: success. The return value 3080 * is the number of entries filled in the stats table. 3081 * - A positive value higher than size: error, the given statistics table 3082 * is too small. The return value corresponds to the size that should 3083 * be given to succeed. The entries in the table are not valid and 3084 * shall not be used by the caller. 3085 * - A negative value on error (invalid port ID). 3086 */ 3087 int rte_eth_xstats_get_names(uint16_t port_id, 3088 struct rte_eth_xstat_name *xstats_names, 3089 unsigned int size); 3090 3091 /** 3092 * Retrieve extended statistics of an Ethernet device. 3093 * 3094 * There is an assumption that 'xstat_names' and 'xstats' arrays are matched 3095 * by array index: 3096 * xstats_names[i].name => xstats[i].value 3097 * 3098 * And the array index is same with id field of 'struct rte_eth_xstat': 3099 * xstats[i].id == i 3100 * 3101 * This assumption makes key-value pair matching less flexible but simpler. 3102 * 3103 * @param port_id 3104 * The port identifier of the Ethernet device. 3105 * @param xstats 3106 * A pointer to a table of structure of type *rte_eth_xstat* 3107 * to be filled with device statistics ids and values. 3108 * This parameter can be set to NULL if n is 0. 3109 * @param n 3110 * The size of the xstats array (number of elements). 3111 * @return 3112 * - A positive value lower or equal to n: success. The return value 3113 * is the number of entries filled in the stats table. 3114 * - A positive value higher than n: error, the given statistics table 3115 * is too small. The return value corresponds to the size that should 3116 * be given to succeed. The entries in the table are not valid and 3117 * shall not be used by the caller. 3118 * - A negative value on error (invalid port ID). 3119 */ 3120 int rte_eth_xstats_get(uint16_t port_id, struct rte_eth_xstat *xstats, 3121 unsigned int n); 3122 3123 /** 3124 * Retrieve names of extended statistics of an Ethernet device. 3125 * 3126 * @param port_id 3127 * The port identifier of the Ethernet device. 3128 * @param xstats_names 3129 * Array to be filled in with names of requested device statistics. 3130 * Must not be NULL if @p ids are specified (not NULL). 3131 * @param size 3132 * Number of elements in @p xstats_names array (if not NULL) and in 3133 * @p ids array (if not NULL). Must be 0 if both array pointers are NULL. 3134 * @param ids 3135 * IDs array given by app to retrieve specific statistics. May be NULL to 3136 * retrieve names of all available statistics or, if @p xstats_names is 3137 * NULL as well, just the number of available statistics. 3138 * @return 3139 * - A positive value lower or equal to size: success. The return value 3140 * is the number of entries filled in the stats table. 3141 * - A positive value higher than size: success. The given statistics table 3142 * is too small. The return value corresponds to the size that should 3143 * be given to succeed. The entries in the table are not valid and 3144 * shall not be used by the caller. 3145 * - A negative value on error. 3146 */ 3147 int 3148 rte_eth_xstats_get_names_by_id(uint16_t port_id, 3149 struct rte_eth_xstat_name *xstats_names, unsigned int size, 3150 uint64_t *ids); 3151 3152 /** 3153 * Retrieve extended statistics of an Ethernet device. 3154 * 3155 * @param port_id 3156 * The port identifier of the Ethernet device. 3157 * @param ids 3158 * IDs array given by app to retrieve specific statistics. May be NULL to 3159 * retrieve all available statistics or, if @p values is NULL as well, 3160 * just the number of available statistics. 3161 * @param values 3162 * Array to be filled in with requested device statistics. 3163 * Must not be NULL if ids are specified (not NULL). 3164 * @param size 3165 * Number of elements in @p values array (if not NULL) and in @p ids 3166 * array (if not NULL). Must be 0 if both array pointers are NULL. 3167 * @return 3168 * - A positive value lower or equal to size: success. The return value 3169 * is the number of entries filled in the stats table. 3170 * - A positive value higher than size: success: The given statistics table 3171 * is too small. The return value corresponds to the size that should 3172 * be given to succeed. The entries in the table are not valid and 3173 * shall not be used by the caller. 3174 * - A negative value on error. 3175 */ 3176 int rte_eth_xstats_get_by_id(uint16_t port_id, const uint64_t *ids, 3177 uint64_t *values, unsigned int size); 3178 3179 /** 3180 * Gets the ID of a statistic from its name. 3181 * 3182 * This function searches for the statistics using string compares, and 3183 * as such should not be used on the fast-path. For fast-path retrieval of 3184 * specific statistics, store the ID as provided in *id* from this function, 3185 * and pass the ID to rte_eth_xstats_get() 3186 * 3187 * @param port_id The port to look up statistics from 3188 * @param xstat_name The name of the statistic to return 3189 * @param[out] id A pointer to an app-supplied uint64_t which should be 3190 * set to the ID of the stat if the stat exists. 3191 * @return 3192 * 0 on success 3193 * -ENODEV for invalid port_id, 3194 * -EIO if device is removed, 3195 * -EINVAL if the xstat_name doesn't exist in port_id 3196 * -ENOMEM if bad parameter. 3197 */ 3198 int rte_eth_xstats_get_id_by_name(uint16_t port_id, const char *xstat_name, 3199 uint64_t *id); 3200 3201 /** 3202 * Reset extended statistics of an Ethernet device. 3203 * 3204 * @param port_id 3205 * The port identifier of the Ethernet device. 3206 * @return 3207 * - (0) if device notified to reset extended stats. 3208 * - (-ENOTSUP) if pmd doesn't support both 3209 * extended stats and basic stats reset. 3210 * - (-ENODEV) if *port_id* invalid. 3211 * - (<0): Error code of the driver xstats reset function. 3212 */ 3213 int rte_eth_xstats_reset(uint16_t port_id); 3214 3215 /** 3216 * Set a mapping for the specified transmit queue to the specified per-queue 3217 * statistics counter. 3218 * 3219 * @param port_id 3220 * The port identifier of the Ethernet device. 3221 * @param tx_queue_id 3222 * The index of the transmit queue for which a queue stats mapping is required. 3223 * The value must be in the range [0, nb_tx_queue - 1] previously supplied 3224 * to rte_eth_dev_configure(). 3225 * @param stat_idx 3226 * The per-queue packet statistics functionality number that the transmit 3227 * queue is to be assigned. 3228 * The value must be in the range [0, RTE_ETHDEV_QUEUE_STAT_CNTRS - 1]. 3229 * Max RTE_ETHDEV_QUEUE_STAT_CNTRS being 256. 3230 * @return 3231 * Zero if successful. Non-zero otherwise. 3232 */ 3233 int rte_eth_dev_set_tx_queue_stats_mapping(uint16_t port_id, 3234 uint16_t tx_queue_id, uint8_t stat_idx); 3235 3236 /** 3237 * Set a mapping for the specified receive queue to the specified per-queue 3238 * statistics counter. 3239 * 3240 * @param port_id 3241 * The port identifier of the Ethernet device. 3242 * @param rx_queue_id 3243 * The index of the receive queue for which a queue stats mapping is required. 3244 * The value must be in the range [0, nb_rx_queue - 1] previously supplied 3245 * to rte_eth_dev_configure(). 3246 * @param stat_idx 3247 * The per-queue packet statistics functionality number that the receive 3248 * queue is to be assigned. 3249 * The value must be in the range [0, RTE_ETHDEV_QUEUE_STAT_CNTRS - 1]. 3250 * Max RTE_ETHDEV_QUEUE_STAT_CNTRS being 256. 3251 * @return 3252 * Zero if successful. Non-zero otherwise. 3253 */ 3254 int rte_eth_dev_set_rx_queue_stats_mapping(uint16_t port_id, 3255 uint16_t rx_queue_id, 3256 uint8_t stat_idx); 3257 3258 /** 3259 * Retrieve the Ethernet address of an Ethernet device. 3260 * 3261 * @param port_id 3262 * The port identifier of the Ethernet device. 3263 * @param mac_addr 3264 * A pointer to a structure of type *ether_addr* to be filled with 3265 * the Ethernet address of the Ethernet device. 3266 * @return 3267 * - (0) if successful 3268 * - (-ENODEV) if *port_id* invalid. 3269 * - (-EINVAL) if bad parameter. 3270 */ 3271 int rte_eth_macaddr_get(uint16_t port_id, struct rte_ether_addr *mac_addr); 3272 3273 /** 3274 * @warning 3275 * @b EXPERIMENTAL: this API may change without prior notice 3276 * 3277 * Retrieve the Ethernet addresses of an Ethernet device. 3278 * 3279 * @param port_id 3280 * The port identifier of the Ethernet device. 3281 * @param ma 3282 * A pointer to an array of structures of type *ether_addr* to be filled with 3283 * the Ethernet addresses of the Ethernet device. 3284 * @param num 3285 * Number of elements in the @p ma array. 3286 * Note that rte_eth_dev_info::max_mac_addrs can be used to retrieve 3287 * max number of Ethernet addresses for given port. 3288 * @return 3289 * - number of retrieved addresses if successful 3290 * - (-ENODEV) if *port_id* invalid. 3291 * - (-EINVAL) if bad parameter. 3292 */ 3293 __rte_experimental 3294 int rte_eth_macaddrs_get(uint16_t port_id, struct rte_ether_addr *ma, 3295 unsigned int num); 3296 3297 /** 3298 * Retrieve the contextual information of an Ethernet device. 3299 * 3300 * As part of this function, a number of of fields in dev_info will be 3301 * initialized as follows: 3302 * 3303 * rx_desc_lim = lim 3304 * tx_desc_lim = lim 3305 * 3306 * Where lim is defined within the rte_eth_dev_info_get as 3307 * 3308 * const struct rte_eth_desc_lim lim = { 3309 * .nb_max = UINT16_MAX, 3310 * .nb_min = 0, 3311 * .nb_align = 1, 3312 * .nb_seg_max = UINT16_MAX, 3313 * .nb_mtu_seg_max = UINT16_MAX, 3314 * }; 3315 * 3316 * device = dev->device 3317 * min_mtu = RTE_ETHER_MIN_LEN - RTE_ETHER_HDR_LEN - RTE_ETHER_CRC_LEN 3318 * max_mtu = UINT16_MAX 3319 * 3320 * The following fields will be populated if support for dev_infos_get() 3321 * exists for the device and the rte_eth_dev 'dev' has been populated 3322 * successfully with a call to it: 3323 * 3324 * driver_name = dev->device->driver->name 3325 * nb_rx_queues = dev->data->nb_rx_queues 3326 * nb_tx_queues = dev->data->nb_tx_queues 3327 * dev_flags = &dev->data->dev_flags 3328 * 3329 * @param port_id 3330 * The port identifier of the Ethernet device. 3331 * @param dev_info 3332 * A pointer to a structure of type *rte_eth_dev_info* to be filled with 3333 * the contextual information of the Ethernet device. 3334 * @return 3335 * - (0) if successful. 3336 * - (-ENOTSUP) if support for dev_infos_get() does not exist for the device. 3337 * - (-ENODEV) if *port_id* invalid. 3338 * - (-EINVAL) if bad parameter. 3339 */ 3340 int rte_eth_dev_info_get(uint16_t port_id, struct rte_eth_dev_info *dev_info); 3341 3342 /** 3343 * @warning 3344 * @b EXPERIMENTAL: this API may change without prior notice. 3345 * 3346 * Retrieve the configuration of an Ethernet device. 3347 * 3348 * @param port_id 3349 * The port identifier of the Ethernet device. 3350 * @param dev_conf 3351 * Location for Ethernet device configuration to be filled in. 3352 * @return 3353 * - (0) if successful. 3354 * - (-ENODEV) if *port_id* invalid. 3355 * - (-EINVAL) if bad parameter. 3356 */ 3357 __rte_experimental 3358 int rte_eth_dev_conf_get(uint16_t port_id, struct rte_eth_conf *dev_conf); 3359 3360 /** 3361 * Retrieve the firmware version of a device. 3362 * 3363 * @param port_id 3364 * The port identifier of the device. 3365 * @param fw_version 3366 * A pointer to a string array storing the firmware version of a device, 3367 * the string includes terminating null. This pointer is allocated by caller. 3368 * @param fw_size 3369 * The size of the string array pointed by fw_version, which should be 3370 * large enough to store firmware version of the device. 3371 * @return 3372 * - (0) if successful. 3373 * - (-ENOTSUP) if operation is not supported. 3374 * - (-ENODEV) if *port_id* invalid. 3375 * - (-EIO) if device is removed. 3376 * - (-EINVAL) if bad parameter. 3377 * - (>0) if *fw_size* is not enough to store firmware version, return 3378 * the size of the non truncated string. 3379 */ 3380 int rte_eth_dev_fw_version_get(uint16_t port_id, 3381 char *fw_version, size_t fw_size); 3382 3383 /** 3384 * Retrieve the supported packet types of an Ethernet device. 3385 * 3386 * When a packet type is announced as supported, it *must* be recognized by 3387 * the PMD. For instance, if RTE_PTYPE_L2_ETHER, RTE_PTYPE_L2_ETHER_VLAN 3388 * and RTE_PTYPE_L3_IPV4 are announced, the PMD must return the following 3389 * packet types for these packets: 3390 * - Ether/IPv4 -> RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4 3391 * - Ether/VLAN/IPv4 -> RTE_PTYPE_L2_ETHER_VLAN | RTE_PTYPE_L3_IPV4 3392 * - Ether/[anything else] -> RTE_PTYPE_L2_ETHER 3393 * - Ether/VLAN/[anything else] -> RTE_PTYPE_L2_ETHER_VLAN 3394 * 3395 * When a packet is received by a PMD, the most precise type must be 3396 * returned among the ones supported. However a PMD is allowed to set 3397 * packet type that is not in the supported list, at the condition that it 3398 * is more precise. Therefore, a PMD announcing no supported packet types 3399 * can still set a matching packet type in a received packet. 3400 * 3401 * @note 3402 * Better to invoke this API after the device is already started or Rx burst 3403 * function is decided, to obtain correct supported ptypes. 3404 * @note 3405 * if a given PMD does not report what ptypes it supports, then the supported 3406 * ptype count is reported as 0. 3407 * @param port_id 3408 * The port identifier of the Ethernet device. 3409 * @param ptype_mask 3410 * A hint of what kind of packet type which the caller is interested in. 3411 * @param ptypes 3412 * An array pointer to store adequate packet types, allocated by caller. 3413 * @param num 3414 * Size of the array pointed by param ptypes. 3415 * @return 3416 * - (>=0) Number of supported ptypes. If the number of types exceeds num, 3417 * only num entries will be filled into the ptypes array, but the full 3418 * count of supported ptypes will be returned. 3419 * - (-ENODEV) if *port_id* invalid. 3420 * - (-EINVAL) if bad parameter. 3421 */ 3422 int rte_eth_dev_get_supported_ptypes(uint16_t port_id, uint32_t ptype_mask, 3423 uint32_t *ptypes, int num); 3424 /** 3425 * Inform Ethernet device about reduced range of packet types to handle. 3426 * 3427 * Application can use this function to set only specific ptypes that it's 3428 * interested. This information can be used by the PMD to optimize Rx path. 3429 * 3430 * The function accepts an array `set_ptypes` allocated by the caller to 3431 * store the packet types set by the driver, the last element of the array 3432 * is set to RTE_PTYPE_UNKNOWN. The size of the `set_ptype` array should be 3433 * `rte_eth_dev_get_supported_ptypes() + 1` else it might only be filled 3434 * partially. 3435 * 3436 * @param port_id 3437 * The port identifier of the Ethernet device. 3438 * @param ptype_mask 3439 * The ptype family that application is interested in should be bitwise OR of 3440 * RTE_PTYPE_*_MASK or 0. 3441 * @param set_ptypes 3442 * An array pointer to store set packet types, allocated by caller. The 3443 * function marks the end of array with RTE_PTYPE_UNKNOWN. 3444 * @param num 3445 * Size of the array pointed by param ptypes. 3446 * Should be rte_eth_dev_get_supported_ptypes() + 1 to accommodate the 3447 * set ptypes. 3448 * @return 3449 * - (0) if Success. 3450 * - (-ENODEV) if *port_id* invalid. 3451 * - (-EINVAL) if *ptype_mask* is invalid (or) set_ptypes is NULL and 3452 * num > 0. 3453 */ 3454 int rte_eth_dev_set_ptypes(uint16_t port_id, uint32_t ptype_mask, 3455 uint32_t *set_ptypes, unsigned int num); 3456 3457 /** 3458 * Retrieve the MTU of an Ethernet device. 3459 * 3460 * @param port_id 3461 * The port identifier of the Ethernet device. 3462 * @param mtu 3463 * A pointer to a uint16_t where the retrieved MTU is to be stored. 3464 * @return 3465 * - (0) if successful. 3466 * - (-ENODEV) if *port_id* invalid. 3467 * - (-EINVAL) if bad parameter. 3468 */ 3469 int rte_eth_dev_get_mtu(uint16_t port_id, uint16_t *mtu); 3470 3471 /** 3472 * Change the MTU of an Ethernet device. 3473 * 3474 * @param port_id 3475 * The port identifier of the Ethernet device. 3476 * @param mtu 3477 * A uint16_t for the MTU to be applied. 3478 * @return 3479 * - (0) if successful. 3480 * - (-ENOTSUP) if operation is not supported. 3481 * - (-ENODEV) if *port_id* invalid. 3482 * - (-EIO) if device is removed. 3483 * - (-EINVAL) if *mtu* invalid, validation of mtu can occur within 3484 * rte_eth_dev_set_mtu if dev_infos_get is supported by the device or 3485 * when the mtu is set using dev->dev_ops->mtu_set. 3486 * - (-EBUSY) if operation is not allowed when the port is running 3487 */ 3488 int rte_eth_dev_set_mtu(uint16_t port_id, uint16_t mtu); 3489 3490 /** 3491 * Enable/Disable hardware filtering by an Ethernet device of received 3492 * VLAN packets tagged with a given VLAN Tag Identifier. 3493 * 3494 * @param port_id 3495 * The port identifier of the Ethernet device. 3496 * @param vlan_id 3497 * The VLAN Tag Identifier whose filtering must be enabled or disabled. 3498 * @param on 3499 * If > 0, enable VLAN filtering of VLAN packets tagged with *vlan_id*. 3500 * Otherwise, disable VLAN filtering of VLAN packets tagged with *vlan_id*. 3501 * @return 3502 * - (0) if successful. 3503 * - (-ENOTSUP) if hardware-assisted VLAN filtering not configured. 3504 * - (-ENODEV) if *port_id* invalid. 3505 * - (-EIO) if device is removed. 3506 * - (-ENOSYS) if VLAN filtering on *port_id* disabled. 3507 * - (-EINVAL) if *vlan_id* > 4095. 3508 */ 3509 int rte_eth_dev_vlan_filter(uint16_t port_id, uint16_t vlan_id, int on); 3510 3511 /** 3512 * Enable/Disable hardware VLAN Strip by a Rx queue of an Ethernet device. 3513 * 3514 * @param port_id 3515 * The port identifier of the Ethernet device. 3516 * @param rx_queue_id 3517 * The index of the receive queue for which a queue stats mapping is required. 3518 * The value must be in the range [0, nb_rx_queue - 1] previously supplied 3519 * to rte_eth_dev_configure(). 3520 * @param on 3521 * If 1, Enable VLAN Stripping of the receive queue of the Ethernet port. 3522 * If 0, Disable VLAN Stripping of the receive queue of the Ethernet port. 3523 * @return 3524 * - (0) if successful. 3525 * - (-ENOTSUP) if hardware-assisted VLAN stripping not configured. 3526 * - (-ENODEV) if *port_id* invalid. 3527 * - (-EINVAL) if *rx_queue_id* invalid. 3528 */ 3529 int rte_eth_dev_set_vlan_strip_on_queue(uint16_t port_id, uint16_t rx_queue_id, 3530 int on); 3531 3532 /** 3533 * Set the Outer VLAN Ether Type by an Ethernet device, it can be inserted to 3534 * the VLAN header. 3535 * 3536 * @param port_id 3537 * The port identifier of the Ethernet device. 3538 * @param vlan_type 3539 * The VLAN type. 3540 * @param tag_type 3541 * The Tag Protocol ID 3542 * @return 3543 * - (0) if successful. 3544 * - (-ENOTSUP) if hardware-assisted VLAN TPID setup is not supported. 3545 * - (-ENODEV) if *port_id* invalid. 3546 * - (-EIO) if device is removed. 3547 */ 3548 int rte_eth_dev_set_vlan_ether_type(uint16_t port_id, 3549 enum rte_vlan_type vlan_type, 3550 uint16_t tag_type); 3551 3552 /** 3553 * Set VLAN offload configuration on an Ethernet device. 3554 * 3555 * @param port_id 3556 * The port identifier of the Ethernet device. 3557 * @param offload_mask 3558 * The VLAN Offload bit mask can be mixed use with "OR" 3559 * RTE_ETH_VLAN_STRIP_OFFLOAD 3560 * RTE_ETH_VLAN_FILTER_OFFLOAD 3561 * RTE_ETH_VLAN_EXTEND_OFFLOAD 3562 * RTE_ETH_QINQ_STRIP_OFFLOAD 3563 * @return 3564 * - (0) if successful. 3565 * - (-ENOTSUP) if hardware-assisted VLAN filtering not configured. 3566 * - (-ENODEV) if *port_id* invalid. 3567 * - (-EIO) if device is removed. 3568 */ 3569 int rte_eth_dev_set_vlan_offload(uint16_t port_id, int offload_mask); 3570 3571 /** 3572 * Read VLAN Offload configuration from an Ethernet device 3573 * 3574 * @param port_id 3575 * The port identifier of the Ethernet device. 3576 * @return 3577 * - (>0) if successful. Bit mask to indicate 3578 * RTE_ETH_VLAN_STRIP_OFFLOAD 3579 * RTE_ETH_VLAN_FILTER_OFFLOAD 3580 * RTE_ETH_VLAN_EXTEND_OFFLOAD 3581 * RTE_ETH_QINQ_STRIP_OFFLOAD 3582 * - (-ENODEV) if *port_id* invalid. 3583 */ 3584 int rte_eth_dev_get_vlan_offload(uint16_t port_id); 3585 3586 /** 3587 * Set port based Tx VLAN insertion on or off. 3588 * 3589 * @param port_id 3590 * The port identifier of the Ethernet device. 3591 * @param pvid 3592 * Port based Tx VLAN identifier together with user priority. 3593 * @param on 3594 * Turn on or off the port based Tx VLAN insertion. 3595 * 3596 * @return 3597 * - (0) if successful. 3598 * - negative if failed. 3599 */ 3600 int rte_eth_dev_set_vlan_pvid(uint16_t port_id, uint16_t pvid, int on); 3601 3602 typedef void (*buffer_tx_error_fn)(struct rte_mbuf **unsent, uint16_t count, 3603 void *userdata); 3604 3605 /** 3606 * Structure used to buffer packets for future Tx 3607 * Used by APIs rte_eth_tx_buffer and rte_eth_tx_buffer_flush 3608 */ 3609 struct rte_eth_dev_tx_buffer { 3610 buffer_tx_error_fn error_callback; 3611 void *error_userdata; 3612 uint16_t size; /**< Size of buffer for buffered Tx */ 3613 uint16_t length; /**< Number of packets in the array */ 3614 /** Pending packets to be sent on explicit flush or when full */ 3615 struct rte_mbuf *pkts[]; 3616 }; 3617 3618 /** 3619 * Calculate the size of the Tx buffer. 3620 * 3621 * @param sz 3622 * Number of stored packets. 3623 */ 3624 #define RTE_ETH_TX_BUFFER_SIZE(sz) \ 3625 (sizeof(struct rte_eth_dev_tx_buffer) + (sz) * sizeof(struct rte_mbuf *)) 3626 3627 /** 3628 * Initialize default values for buffered transmitting 3629 * 3630 * @param buffer 3631 * Tx buffer to be initialized. 3632 * @param size 3633 * Buffer size 3634 * @return 3635 * 0 if no error 3636 */ 3637 int 3638 rte_eth_tx_buffer_init(struct rte_eth_dev_tx_buffer *buffer, uint16_t size); 3639 3640 /** 3641 * Configure a callback for buffered packets which cannot be sent 3642 * 3643 * Register a specific callback to be called when an attempt is made to send 3644 * all packets buffered on an Ethernet port, but not all packets can 3645 * successfully be sent. The callback registered here will be called only 3646 * from calls to rte_eth_tx_buffer() and rte_eth_tx_buffer_flush() APIs. 3647 * The default callback configured for each queue by default just frees the 3648 * packets back to the calling mempool. If additional behaviour is required, 3649 * for example, to count dropped packets, or to retry transmission of packets 3650 * which cannot be sent, this function should be used to register a suitable 3651 * callback function to implement the desired behaviour. 3652 * The example callback "rte_eth_count_unsent_packet_callback()" is also 3653 * provided as reference. 3654 * 3655 * @param buffer 3656 * The port identifier of the Ethernet device. 3657 * @param callback 3658 * The function to be used as the callback. 3659 * @param userdata 3660 * Arbitrary parameter to be passed to the callback function 3661 * @return 3662 * 0 on success, or -EINVAL if bad parameter 3663 */ 3664 int 3665 rte_eth_tx_buffer_set_err_callback(struct rte_eth_dev_tx_buffer *buffer, 3666 buffer_tx_error_fn callback, void *userdata); 3667 3668 /** 3669 * Callback function for silently dropping unsent buffered packets. 3670 * 3671 * This function can be passed to rte_eth_tx_buffer_set_err_callback() to 3672 * adjust the default behavior when buffered packets cannot be sent. This 3673 * function drops any unsent packets silently and is used by Tx buffered 3674 * operations as default behavior. 3675 * 3676 * NOTE: this function should not be called directly, instead it should be used 3677 * as a callback for packet buffering. 3678 * 3679 * NOTE: when configuring this function as a callback with 3680 * rte_eth_tx_buffer_set_err_callback(), the final, userdata parameter 3681 * should point to an uint64_t value. 3682 * 3683 * @param pkts 3684 * The previously buffered packets which could not be sent 3685 * @param unsent 3686 * The number of unsent packets in the pkts array 3687 * @param userdata 3688 * Not used 3689 */ 3690 void 3691 rte_eth_tx_buffer_drop_callback(struct rte_mbuf **pkts, uint16_t unsent, 3692 void *userdata); 3693 3694 /** 3695 * Callback function for tracking unsent buffered packets. 3696 * 3697 * This function can be passed to rte_eth_tx_buffer_set_err_callback() to 3698 * adjust the default behavior when buffered packets cannot be sent. This 3699 * function drops any unsent packets, but also updates a user-supplied counter 3700 * to track the overall number of packets dropped. The counter should be an 3701 * uint64_t variable. 3702 * 3703 * NOTE: this function should not be called directly, instead it should be used 3704 * as a callback for packet buffering. 3705 * 3706 * NOTE: when configuring this function as a callback with 3707 * rte_eth_tx_buffer_set_err_callback(), the final, userdata parameter 3708 * should point to an uint64_t value. 3709 * 3710 * @param pkts 3711 * The previously buffered packets which could not be sent 3712 * @param unsent 3713 * The number of unsent packets in the pkts array 3714 * @param userdata 3715 * Pointer to an uint64_t value, which will be incremented by unsent 3716 */ 3717 void 3718 rte_eth_tx_buffer_count_callback(struct rte_mbuf **pkts, uint16_t unsent, 3719 void *userdata); 3720 3721 /** 3722 * Request the driver to free mbufs currently cached by the driver. The 3723 * driver will only free the mbuf if it is no longer in use. It is the 3724 * application's responsibility to ensure rte_eth_tx_buffer_flush(..) is 3725 * called if needed. 3726 * 3727 * @param port_id 3728 * The port identifier of the Ethernet device. 3729 * @param queue_id 3730 * The index of the transmit queue through which output packets must be 3731 * sent. 3732 * The value must be in the range [0, nb_tx_queue - 1] previously supplied 3733 * to rte_eth_dev_configure(). 3734 * @param free_cnt 3735 * Maximum number of packets to free. Use 0 to indicate all possible packets 3736 * should be freed. Note that a packet may be using multiple mbufs. 3737 * @return 3738 * Failure: < 0 3739 * -ENODEV: Invalid interface 3740 * -EIO: device is removed 3741 * -ENOTSUP: Driver does not support function 3742 * Success: >= 0 3743 * 0-n: Number of packets freed. More packets may still remain in ring that 3744 * are in use. 3745 */ 3746 int 3747 rte_eth_tx_done_cleanup(uint16_t port_id, uint16_t queue_id, uint32_t free_cnt); 3748 3749 /** 3750 * Subtypes for IPsec offload event(@ref RTE_ETH_EVENT_IPSEC) raised by 3751 * eth device. 3752 */ 3753 enum rte_eth_event_ipsec_subtype { 3754 /** Unknown event type */ 3755 RTE_ETH_EVENT_IPSEC_UNKNOWN = 0, 3756 /** Sequence number overflow */ 3757 RTE_ETH_EVENT_IPSEC_ESN_OVERFLOW, 3758 /** Soft time expiry of SA */ 3759 RTE_ETH_EVENT_IPSEC_SA_TIME_EXPIRY, 3760 /** Soft byte expiry of SA */ 3761 RTE_ETH_EVENT_IPSEC_SA_BYTE_EXPIRY, 3762 /** Max value of this enum */ 3763 RTE_ETH_EVENT_IPSEC_MAX 3764 }; 3765 3766 /** 3767 * Descriptor for @ref RTE_ETH_EVENT_IPSEC event. Used by eth dev to send extra 3768 * information of the IPsec offload event. 3769 */ 3770 struct rte_eth_event_ipsec_desc { 3771 /** Type of RTE_ETH_EVENT_IPSEC_* event */ 3772 enum rte_eth_event_ipsec_subtype subtype; 3773 /** 3774 * Event specific metadata. 3775 * 3776 * For the following events, *userdata* registered 3777 * with the *rte_security_session* would be returned 3778 * as metadata, 3779 * 3780 * - @ref RTE_ETH_EVENT_IPSEC_ESN_OVERFLOW 3781 * - @ref RTE_ETH_EVENT_IPSEC_SA_TIME_EXPIRY 3782 * - @ref RTE_ETH_EVENT_IPSEC_SA_BYTE_EXPIRY 3783 * 3784 * @see struct rte_security_session_conf 3785 * 3786 */ 3787 uint64_t metadata; 3788 }; 3789 3790 /** 3791 * The eth device event type for interrupt, and maybe others in the future. 3792 */ 3793 enum rte_eth_event_type { 3794 RTE_ETH_EVENT_UNKNOWN, /**< unknown event type */ 3795 RTE_ETH_EVENT_INTR_LSC, /**< lsc interrupt event */ 3796 /** queue state event (enabled/disabled) */ 3797 RTE_ETH_EVENT_QUEUE_STATE, 3798 /** reset interrupt event, sent to VF on PF reset */ 3799 RTE_ETH_EVENT_INTR_RESET, 3800 RTE_ETH_EVENT_VF_MBOX, /**< message from the VF received by PF */ 3801 RTE_ETH_EVENT_MACSEC, /**< MACsec offload related event */ 3802 RTE_ETH_EVENT_INTR_RMV, /**< device removal event */ 3803 RTE_ETH_EVENT_NEW, /**< port is probed */ 3804 RTE_ETH_EVENT_DESTROY, /**< port is released */ 3805 RTE_ETH_EVENT_IPSEC, /**< IPsec offload related event */ 3806 RTE_ETH_EVENT_FLOW_AGED,/**< New aged-out flows is detected */ 3807 RTE_ETH_EVENT_MAX /**< max value of this enum */ 3808 }; 3809 3810 /** User application callback to be registered for interrupts. */ 3811 typedef int (*rte_eth_dev_cb_fn)(uint16_t port_id, 3812 enum rte_eth_event_type event, void *cb_arg, void *ret_param); 3813 3814 /** 3815 * Register a callback function for port event. 3816 * 3817 * @param port_id 3818 * Port ID. 3819 * RTE_ETH_ALL means register the event for all port ids. 3820 * @param event 3821 * Event interested. 3822 * @param cb_fn 3823 * User supplied callback function to be called. 3824 * @param cb_arg 3825 * Pointer to the parameters for the registered callback. 3826 * 3827 * @return 3828 * - On success, zero. 3829 * - On failure, a negative value. 3830 */ 3831 int rte_eth_dev_callback_register(uint16_t port_id, 3832 enum rte_eth_event_type event, 3833 rte_eth_dev_cb_fn cb_fn, void *cb_arg); 3834 3835 /** 3836 * Unregister a callback function for port event. 3837 * 3838 * @param port_id 3839 * Port ID. 3840 * RTE_ETH_ALL means unregister the event for all port ids. 3841 * @param event 3842 * Event interested. 3843 * @param cb_fn 3844 * User supplied callback function to be called. 3845 * @param cb_arg 3846 * Pointer to the parameters for the registered callback. -1 means to 3847 * remove all for the same callback address and same event. 3848 * 3849 * @return 3850 * - On success, zero. 3851 * - On failure, a negative value. 3852 */ 3853 int rte_eth_dev_callback_unregister(uint16_t port_id, 3854 enum rte_eth_event_type event, 3855 rte_eth_dev_cb_fn cb_fn, void *cb_arg); 3856 3857 /** 3858 * When there is no Rx packet coming in Rx Queue for a long time, we can 3859 * sleep lcore related to Rx Queue for power saving, and enable Rx interrupt 3860 * to be triggered when Rx packet arrives. 3861 * 3862 * The rte_eth_dev_rx_intr_enable() function enables Rx queue 3863 * interrupt on specific Rx queue of a port. 3864 * 3865 * @param port_id 3866 * The port identifier of the Ethernet device. 3867 * @param queue_id 3868 * The index of the receive queue from which to retrieve input packets. 3869 * The value must be in the range [0, nb_rx_queue - 1] previously supplied 3870 * to rte_eth_dev_configure(). 3871 * @return 3872 * - (0) if successful. 3873 * - (-ENOTSUP) if underlying hardware OR driver doesn't support 3874 * that operation. 3875 * - (-ENODEV) if *port_id* invalid. 3876 * - (-EIO) if device is removed. 3877 */ 3878 int rte_eth_dev_rx_intr_enable(uint16_t port_id, uint16_t queue_id); 3879 3880 /** 3881 * When lcore wakes up from Rx interrupt indicating packet coming, disable Rx 3882 * interrupt and returns to polling mode. 3883 * 3884 * The rte_eth_dev_rx_intr_disable() function disables Rx queue 3885 * interrupt on specific Rx queue of a port. 3886 * 3887 * @param port_id 3888 * The port identifier of the Ethernet device. 3889 * @param queue_id 3890 * The index of the receive queue from which to retrieve input packets. 3891 * The value must be in the range [0, nb_rx_queue - 1] previously supplied 3892 * to rte_eth_dev_configure(). 3893 * @return 3894 * - (0) if successful. 3895 * - (-ENOTSUP) if underlying hardware OR driver doesn't support 3896 * that operation. 3897 * - (-ENODEV) if *port_id* invalid. 3898 * - (-EIO) if device is removed. 3899 */ 3900 int rte_eth_dev_rx_intr_disable(uint16_t port_id, uint16_t queue_id); 3901 3902 /** 3903 * Rx Interrupt control per port. 3904 * 3905 * @param port_id 3906 * The port identifier of the Ethernet device. 3907 * @param epfd 3908 * Epoll instance fd which the intr vector associated to. 3909 * Using RTE_EPOLL_PER_THREAD allows to use per thread epoll instance. 3910 * @param op 3911 * The operation be performed for the vector. 3912 * Operation type of {RTE_INTR_EVENT_ADD, RTE_INTR_EVENT_DEL}. 3913 * @param data 3914 * User raw data. 3915 * @return 3916 * - On success, zero. 3917 * - On failure, a negative value. 3918 */ 3919 int rte_eth_dev_rx_intr_ctl(uint16_t port_id, int epfd, int op, void *data); 3920 3921 /** 3922 * Rx Interrupt control per queue. 3923 * 3924 * @param port_id 3925 * The port identifier of the Ethernet device. 3926 * @param queue_id 3927 * The index of the receive queue from which to retrieve input packets. 3928 * The value must be in the range [0, nb_rx_queue - 1] previously supplied 3929 * to rte_eth_dev_configure(). 3930 * @param epfd 3931 * Epoll instance fd which the intr vector associated to. 3932 * Using RTE_EPOLL_PER_THREAD allows to use per thread epoll instance. 3933 * @param op 3934 * The operation be performed for the vector. 3935 * Operation type of {RTE_INTR_EVENT_ADD, RTE_INTR_EVENT_DEL}. 3936 * @param data 3937 * User raw data. 3938 * @return 3939 * - On success, zero. 3940 * - On failure, a negative value. 3941 */ 3942 int rte_eth_dev_rx_intr_ctl_q(uint16_t port_id, uint16_t queue_id, 3943 int epfd, int op, void *data); 3944 3945 /** 3946 * Get interrupt fd per Rx queue. 3947 * 3948 * @param port_id 3949 * The port identifier of the Ethernet device. 3950 * @param queue_id 3951 * The index of the receive queue from which to retrieve input packets. 3952 * The value must be in the range [0, nb_rx_queue - 1] previously supplied 3953 * to rte_eth_dev_configure(). 3954 * @return 3955 * - (>=0) the interrupt fd associated to the requested Rx queue if 3956 * successful. 3957 * - (-1) on error. 3958 */ 3959 int 3960 rte_eth_dev_rx_intr_ctl_q_get_fd(uint16_t port_id, uint16_t queue_id); 3961 3962 /** 3963 * Turn on the LED on the Ethernet device. 3964 * This function turns on the LED on the Ethernet device. 3965 * 3966 * @param port_id 3967 * The port identifier of the Ethernet device. 3968 * @return 3969 * - (0) if successful. 3970 * - (-ENOTSUP) if underlying hardware OR driver doesn't support 3971 * that operation. 3972 * - (-ENODEV) if *port_id* invalid. 3973 * - (-EIO) if device is removed. 3974 */ 3975 int rte_eth_led_on(uint16_t port_id); 3976 3977 /** 3978 * Turn off the LED on the Ethernet device. 3979 * This function turns off the LED on the Ethernet device. 3980 * 3981 * @param port_id 3982 * The port identifier of the Ethernet device. 3983 * @return 3984 * - (0) if successful. 3985 * - (-ENOTSUP) if underlying hardware OR driver doesn't support 3986 * that operation. 3987 * - (-ENODEV) if *port_id* invalid. 3988 * - (-EIO) if device is removed. 3989 */ 3990 int rte_eth_led_off(uint16_t port_id); 3991 3992 /** 3993 * @warning 3994 * @b EXPERIMENTAL: this API may change, or be removed, without prior notice 3995 * 3996 * Get Forward Error Correction(FEC) capability. 3997 * 3998 * @param port_id 3999 * The port identifier of the Ethernet device. 4000 * @param speed_fec_capa 4001 * speed_fec_capa is out only with per-speed capabilities. 4002 * If set to NULL, the function returns the required number 4003 * of required array entries. 4004 * @param num 4005 * a number of elements in an speed_fec_capa array. 4006 * 4007 * @return 4008 * - A non-negative value lower or equal to num: success. The return value 4009 * is the number of entries filled in the fec capa array. 4010 * - A non-negative value higher than num: error, the given fec capa array 4011 * is too small. The return value corresponds to the num that should 4012 * be given to succeed. The entries in fec capa array are not valid and 4013 * shall not be used by the caller. 4014 * - (-ENOTSUP) if underlying hardware OR driver doesn't support. 4015 * that operation. 4016 * - (-EIO) if device is removed. 4017 * - (-ENODEV) if *port_id* invalid. 4018 * - (-EINVAL) if *num* or *speed_fec_capa* invalid 4019 */ 4020 __rte_experimental 4021 int rte_eth_fec_get_capability(uint16_t port_id, 4022 struct rte_eth_fec_capa *speed_fec_capa, 4023 unsigned int num); 4024 4025 /** 4026 * @warning 4027 * @b EXPERIMENTAL: this API may change, or be removed, without prior notice 4028 * 4029 * Get current Forward Error Correction(FEC) mode. 4030 * If link is down and AUTO is enabled, AUTO is returned, otherwise, 4031 * configured FEC mode is returned. 4032 * If link is up, current FEC mode is returned. 4033 * 4034 * @param port_id 4035 * The port identifier of the Ethernet device. 4036 * @param fec_capa 4037 * A bitmask of enabled FEC modes. If AUTO bit is set, other 4038 * bits specify FEC modes which may be negotiated. If AUTO 4039 * bit is clear, specify FEC modes to be used (only one valid 4040 * mode per speed may be set). 4041 * @return 4042 * - (0) if successful. 4043 * - (-ENOTSUP) if underlying hardware OR driver doesn't support. 4044 * that operation. 4045 * - (-EIO) if device is removed. 4046 * - (-ENODEV) if *port_id* invalid. 4047 */ 4048 __rte_experimental 4049 int rte_eth_fec_get(uint16_t port_id, uint32_t *fec_capa); 4050 4051 /** 4052 * @warning 4053 * @b EXPERIMENTAL: this API may change, or be removed, without prior notice 4054 * 4055 * Set Forward Error Correction(FEC) mode. 4056 * 4057 * @param port_id 4058 * The port identifier of the Ethernet device. 4059 * @param fec_capa 4060 * A bitmask of allowed FEC modes. If AUTO bit is set, other 4061 * bits specify FEC modes which may be negotiated. If AUTO 4062 * bit is clear, specify FEC modes to be used (only one valid 4063 * mode per speed may be set). 4064 * @return 4065 * - (0) if successful. 4066 * - (-EINVAL) if the FEC mode is not valid. 4067 * - (-ENOTSUP) if underlying hardware OR driver doesn't support. 4068 * - (-EIO) if device is removed. 4069 * - (-ENODEV) if *port_id* invalid. 4070 */ 4071 __rte_experimental 4072 int rte_eth_fec_set(uint16_t port_id, uint32_t fec_capa); 4073 4074 /** 4075 * Get current status of the Ethernet link flow control for Ethernet device 4076 * 4077 * @param port_id 4078 * The port identifier of the Ethernet device. 4079 * @param fc_conf 4080 * The pointer to the structure where to store the flow control parameters. 4081 * @return 4082 * - (0) if successful. 4083 * - (-ENOTSUP) if hardware doesn't support flow control. 4084 * - (-ENODEV) if *port_id* invalid. 4085 * - (-EIO) if device is removed. 4086 * - (-EINVAL) if bad parameter. 4087 */ 4088 int rte_eth_dev_flow_ctrl_get(uint16_t port_id, 4089 struct rte_eth_fc_conf *fc_conf); 4090 4091 /** 4092 * Configure the Ethernet link flow control for Ethernet device 4093 * 4094 * @param port_id 4095 * The port identifier of the Ethernet device. 4096 * @param fc_conf 4097 * The pointer to the structure of the flow control parameters. 4098 * @return 4099 * - (0) if successful. 4100 * - (-ENOTSUP) if hardware doesn't support flow control mode. 4101 * - (-ENODEV) if *port_id* invalid. 4102 * - (-EINVAL) if bad parameter 4103 * - (-EIO) if flow control setup failure or device is removed. 4104 */ 4105 int rte_eth_dev_flow_ctrl_set(uint16_t port_id, 4106 struct rte_eth_fc_conf *fc_conf); 4107 4108 /** 4109 * Configure the Ethernet priority flow control under DCB environment 4110 * for Ethernet device. 4111 * 4112 * @param port_id 4113 * The port identifier of the Ethernet device. 4114 * @param pfc_conf 4115 * The pointer to the structure of the priority flow control parameters. 4116 * @return 4117 * - (0) if successful. 4118 * - (-ENOTSUP) if hardware doesn't support priority flow control mode. 4119 * - (-ENODEV) if *port_id* invalid. 4120 * - (-EINVAL) if bad parameter 4121 * - (-EIO) if flow control setup failure or device is removed. 4122 */ 4123 int rte_eth_dev_priority_flow_ctrl_set(uint16_t port_id, 4124 struct rte_eth_pfc_conf *pfc_conf); 4125 4126 /** 4127 * Add a MAC address to the set used for filtering incoming packets. 4128 * 4129 * @param port_id 4130 * The port identifier of the Ethernet device. 4131 * @param mac_addr 4132 * The MAC address to add. 4133 * @param pool 4134 * VMDq pool index to associate address with (if VMDq is enabled). If VMDq is 4135 * not enabled, this should be set to 0. 4136 * @return 4137 * - (0) if successfully added or *mac_addr* was already added. 4138 * - (-ENOTSUP) if hardware doesn't support this feature. 4139 * - (-ENODEV) if *port* is invalid. 4140 * - (-EIO) if device is removed. 4141 * - (-ENOSPC) if no more MAC addresses can be added. 4142 * - (-EINVAL) if MAC address is invalid. 4143 */ 4144 int rte_eth_dev_mac_addr_add(uint16_t port_id, struct rte_ether_addr *mac_addr, 4145 uint32_t pool); 4146 4147 /** 4148 * Remove a MAC address from the internal array of addresses. 4149 * 4150 * @param port_id 4151 * The port identifier of the Ethernet device. 4152 * @param mac_addr 4153 * MAC address to remove. 4154 * @return 4155 * - (0) if successful, or *mac_addr* didn't exist. 4156 * - (-ENOTSUP) if hardware doesn't support. 4157 * - (-ENODEV) if *port* invalid. 4158 * - (-EADDRINUSE) if attempting to remove the default MAC address. 4159 * - (-EINVAL) if MAC address is invalid. 4160 */ 4161 int rte_eth_dev_mac_addr_remove(uint16_t port_id, 4162 struct rte_ether_addr *mac_addr); 4163 4164 /** 4165 * Set the default MAC address. 4166 * 4167 * @param port_id 4168 * The port identifier of the Ethernet device. 4169 * @param mac_addr 4170 * New default MAC address. 4171 * @return 4172 * - (0) if successful, or *mac_addr* didn't exist. 4173 * - (-ENOTSUP) if hardware doesn't support. 4174 * - (-ENODEV) if *port* invalid. 4175 * - (-EINVAL) if MAC address is invalid. 4176 */ 4177 int rte_eth_dev_default_mac_addr_set(uint16_t port_id, 4178 struct rte_ether_addr *mac_addr); 4179 4180 /** 4181 * Update Redirection Table(RETA) of Receive Side Scaling of Ethernet device. 4182 * 4183 * @param port_id 4184 * The port identifier of the Ethernet device. 4185 * @param reta_conf 4186 * RETA to update. 4187 * @param reta_size 4188 * Redirection table size. The table size can be queried by 4189 * rte_eth_dev_info_get(). 4190 * @return 4191 * - (0) if successful. 4192 * - (-ENODEV) if *port_id* is invalid. 4193 * - (-ENOTSUP) if hardware doesn't support. 4194 * - (-EINVAL) if bad parameter. 4195 * - (-EIO) if device is removed. 4196 */ 4197 int rte_eth_dev_rss_reta_update(uint16_t port_id, 4198 struct rte_eth_rss_reta_entry64 *reta_conf, 4199 uint16_t reta_size); 4200 4201 /** 4202 * Query Redirection Table(RETA) of Receive Side Scaling of Ethernet device. 4203 * 4204 * @param port_id 4205 * The port identifier of the Ethernet device. 4206 * @param reta_conf 4207 * RETA to query. For each requested reta entry, corresponding bit 4208 * in mask must be set. 4209 * @param reta_size 4210 * Redirection table size. The table size can be queried by 4211 * rte_eth_dev_info_get(). 4212 * @return 4213 * - (0) if successful. 4214 * - (-ENODEV) if *port_id* is invalid. 4215 * - (-ENOTSUP) if hardware doesn't support. 4216 * - (-EINVAL) if bad parameter. 4217 * - (-EIO) if device is removed. 4218 */ 4219 int rte_eth_dev_rss_reta_query(uint16_t port_id, 4220 struct rte_eth_rss_reta_entry64 *reta_conf, 4221 uint16_t reta_size); 4222 4223 /** 4224 * Updates unicast hash table for receiving packet with the given destination 4225 * MAC address, and the packet is routed to all VFs for which the Rx mode is 4226 * accept packets that match the unicast hash table. 4227 * 4228 * @param port_id 4229 * The port identifier of the Ethernet device. 4230 * @param addr 4231 * Unicast MAC address. 4232 * @param on 4233 * 1 - Set an unicast hash bit for receiving packets with the MAC address. 4234 * 0 - Clear an unicast hash bit. 4235 * @return 4236 * - (0) if successful. 4237 * - (-ENOTSUP) if hardware doesn't support. 4238 * - (-ENODEV) if *port_id* invalid. 4239 * - (-EIO) if device is removed. 4240 * - (-EINVAL) if bad parameter. 4241 */ 4242 int rte_eth_dev_uc_hash_table_set(uint16_t port_id, struct rte_ether_addr *addr, 4243 uint8_t on); 4244 4245 /** 4246 * Updates all unicast hash bitmaps for receiving packet with any Unicast 4247 * Ethernet MAC addresses,the packet is routed to all VFs for which the Rx 4248 * mode is accept packets that match the unicast hash table. 4249 * 4250 * @param port_id 4251 * The port identifier of the Ethernet device. 4252 * @param on 4253 * 1 - Set all unicast hash bitmaps for receiving all the Ethernet 4254 * MAC addresses 4255 * 0 - Clear all unicast hash bitmaps 4256 * @return 4257 * - (0) if successful. 4258 * - (-ENOTSUP) if hardware doesn't support. 4259 * - (-ENODEV) if *port_id* invalid. 4260 * - (-EIO) if device is removed. 4261 * - (-EINVAL) if bad parameter. 4262 */ 4263 int rte_eth_dev_uc_all_hash_table_set(uint16_t port_id, uint8_t on); 4264 4265 /** 4266 * Set the rate limitation for a queue on an Ethernet device. 4267 * 4268 * @param port_id 4269 * The port identifier of the Ethernet device. 4270 * @param queue_idx 4271 * The queue ID. 4272 * @param tx_rate 4273 * The Tx rate in Mbps. Allocated from the total port link speed. 4274 * @return 4275 * - (0) if successful. 4276 * - (-ENOTSUP) if hardware doesn't support this feature. 4277 * - (-ENODEV) if *port_id* invalid. 4278 * - (-EIO) if device is removed. 4279 * - (-EINVAL) if bad parameter. 4280 */ 4281 int rte_eth_set_queue_rate_limit(uint16_t port_id, uint16_t queue_idx, 4282 uint16_t tx_rate); 4283 4284 /** 4285 * Configuration of Receive Side Scaling hash computation of Ethernet device. 4286 * 4287 * @param port_id 4288 * The port identifier of the Ethernet device. 4289 * @param rss_conf 4290 * The new configuration to use for RSS hash computation on the port. 4291 * @return 4292 * - (0) if successful. 4293 * - (-ENODEV) if port identifier is invalid. 4294 * - (-EIO) if device is removed. 4295 * - (-ENOTSUP) if hardware doesn't support. 4296 * - (-EINVAL) if bad parameter. 4297 */ 4298 int rte_eth_dev_rss_hash_update(uint16_t port_id, 4299 struct rte_eth_rss_conf *rss_conf); 4300 4301 /** 4302 * Retrieve current configuration of Receive Side Scaling hash computation 4303 * of Ethernet device. 4304 * 4305 * @param port_id 4306 * The port identifier of the Ethernet device. 4307 * @param rss_conf 4308 * Where to store the current RSS hash configuration of the Ethernet device. 4309 * @return 4310 * - (0) if successful. 4311 * - (-ENODEV) if port identifier is invalid. 4312 * - (-EIO) if device is removed. 4313 * - (-ENOTSUP) if hardware doesn't support RSS. 4314 * - (-EINVAL) if bad parameter. 4315 */ 4316 int 4317 rte_eth_dev_rss_hash_conf_get(uint16_t port_id, 4318 struct rte_eth_rss_conf *rss_conf); 4319 4320 /** 4321 * Add UDP tunneling port for a type of tunnel. 4322 * 4323 * Some NICs may require such configuration to properly parse a tunnel 4324 * with any standard or custom UDP port. 4325 * The packets with this UDP port will be parsed for this type of tunnel. 4326 * The device parser will also check the rest of the tunnel headers 4327 * before classifying the packet. 4328 * 4329 * With some devices, this API will affect packet classification, i.e.: 4330 * - mbuf.packet_type reported on Rx 4331 * - rte_flow rules with tunnel items 4332 * 4333 * @param port_id 4334 * The port identifier of the Ethernet device. 4335 * @param tunnel_udp 4336 * UDP tunneling configuration. 4337 * 4338 * @return 4339 * - (0) if successful. 4340 * - (-ENODEV) if port identifier is invalid. 4341 * - (-EIO) if device is removed. 4342 * - (-ENOTSUP) if hardware doesn't support tunnel type. 4343 */ 4344 int 4345 rte_eth_dev_udp_tunnel_port_add(uint16_t port_id, 4346 struct rte_eth_udp_tunnel *tunnel_udp); 4347 4348 /** 4349 * Delete UDP tunneling port for a type of tunnel. 4350 * 4351 * The packets with this UDP port will not be classified as this type of tunnel 4352 * anymore if the device use such mapping for tunnel packet classification. 4353 * 4354 * @see rte_eth_dev_udp_tunnel_port_add 4355 * 4356 * @param port_id 4357 * The port identifier of the Ethernet device. 4358 * @param tunnel_udp 4359 * UDP tunneling configuration. 4360 * 4361 * @return 4362 * - (0) if successful. 4363 * - (-ENODEV) if port identifier is invalid. 4364 * - (-EIO) if device is removed. 4365 * - (-ENOTSUP) if hardware doesn't support tunnel type. 4366 */ 4367 int 4368 rte_eth_dev_udp_tunnel_port_delete(uint16_t port_id, 4369 struct rte_eth_udp_tunnel *tunnel_udp); 4370 4371 /** 4372 * Get DCB information on an Ethernet device. 4373 * 4374 * @param port_id 4375 * The port identifier of the Ethernet device. 4376 * @param dcb_info 4377 * DCB information. 4378 * @return 4379 * - (0) if successful. 4380 * - (-ENODEV) if port identifier is invalid. 4381 * - (-EIO) if device is removed. 4382 * - (-ENOTSUP) if hardware doesn't support. 4383 * - (-EINVAL) if bad parameter. 4384 */ 4385 int rte_eth_dev_get_dcb_info(uint16_t port_id, 4386 struct rte_eth_dcb_info *dcb_info); 4387 4388 struct rte_eth_rxtx_callback; 4389 4390 /** 4391 * Add a callback to be called on packet Rx on a given port and queue. 4392 * 4393 * This API configures a function to be called for each burst of 4394 * packets received on a given NIC port queue. The return value is a pointer 4395 * that can be used to later remove the callback using 4396 * rte_eth_remove_rx_callback(). 4397 * 4398 * Multiple functions are called in the order that they are added. 4399 * 4400 * @param port_id 4401 * The port identifier of the Ethernet device. 4402 * @param queue_id 4403 * The queue on the Ethernet device on which the callback is to be added. 4404 * @param fn 4405 * The callback function 4406 * @param user_param 4407 * A generic pointer parameter which will be passed to each invocation of the 4408 * callback function on this port and queue. Inter-thread synchronization 4409 * of any user data changes is the responsibility of the user. 4410 * 4411 * @return 4412 * NULL on error. 4413 * On success, a pointer value which can later be used to remove the callback. 4414 */ 4415 const struct rte_eth_rxtx_callback * 4416 rte_eth_add_rx_callback(uint16_t port_id, uint16_t queue_id, 4417 rte_rx_callback_fn fn, void *user_param); 4418 4419 /** 4420 * Add a callback that must be called first on packet Rx on a given port 4421 * and queue. 4422 * 4423 * This API configures a first function to be called for each burst of 4424 * packets received on a given NIC port queue. The return value is a pointer 4425 * that can be used to later remove the callback using 4426 * rte_eth_remove_rx_callback(). 4427 * 4428 * Multiple functions are called in the order that they are added. 4429 * 4430 * @param port_id 4431 * The port identifier of the Ethernet device. 4432 * @param queue_id 4433 * The queue on the Ethernet device on which the callback is to be added. 4434 * @param fn 4435 * The callback function 4436 * @param user_param 4437 * A generic pointer parameter which will be passed to each invocation of the 4438 * callback function on this port and queue. Inter-thread synchronization 4439 * of any user data changes is the responsibility of the user. 4440 * 4441 * @return 4442 * NULL on error. 4443 * On success, a pointer value which can later be used to remove the callback. 4444 */ 4445 const struct rte_eth_rxtx_callback * 4446 rte_eth_add_first_rx_callback(uint16_t port_id, uint16_t queue_id, 4447 rte_rx_callback_fn fn, void *user_param); 4448 4449 /** 4450 * Add a callback to be called on packet Tx on a given port and queue. 4451 * 4452 * This API configures a function to be called for each burst of 4453 * packets sent on a given NIC port queue. The return value is a pointer 4454 * that can be used to later remove the callback using 4455 * rte_eth_remove_tx_callback(). 4456 * 4457 * Multiple functions are called in the order that they are added. 4458 * 4459 * @param port_id 4460 * The port identifier of the Ethernet device. 4461 * @param queue_id 4462 * The queue on the Ethernet device on which the callback is to be added. 4463 * @param fn 4464 * The callback function 4465 * @param user_param 4466 * A generic pointer parameter which will be passed to each invocation of the 4467 * callback function on this port and queue. Inter-thread synchronization 4468 * of any user data changes is the responsibility of the user. 4469 * 4470 * @return 4471 * NULL on error. 4472 * On success, a pointer value which can later be used to remove the callback. 4473 */ 4474 const struct rte_eth_rxtx_callback * 4475 rte_eth_add_tx_callback(uint16_t port_id, uint16_t queue_id, 4476 rte_tx_callback_fn fn, void *user_param); 4477 4478 /** 4479 * Remove an Rx packet callback from a given port and queue. 4480 * 4481 * This function is used to removed callbacks that were added to a NIC port 4482 * queue using rte_eth_add_rx_callback(). 4483 * 4484 * Note: the callback is removed from the callback list but it isn't freed 4485 * since the it may still be in use. The memory for the callback can be 4486 * subsequently freed back by the application by calling rte_free(): 4487 * 4488 * - Immediately - if the port is stopped, or the user knows that no 4489 * callbacks are in flight e.g. if called from the thread doing Rx/Tx 4490 * on that queue. 4491 * 4492 * - After a short delay - where the delay is sufficient to allow any 4493 * in-flight callbacks to complete. Alternately, the RCU mechanism can be 4494 * used to detect when data plane threads have ceased referencing the 4495 * callback memory. 4496 * 4497 * @param port_id 4498 * The port identifier of the Ethernet device. 4499 * @param queue_id 4500 * The queue on the Ethernet device from which the callback is to be removed. 4501 * @param user_cb 4502 * User supplied callback created via rte_eth_add_rx_callback(). 4503 * 4504 * @return 4505 * - 0: Success. Callback was removed. 4506 * - -ENODEV: If *port_id* is invalid. 4507 * - -ENOTSUP: Callback support is not available. 4508 * - -EINVAL: The queue_id is out of range, or the callback 4509 * is NULL or not found for the port/queue. 4510 */ 4511 int rte_eth_remove_rx_callback(uint16_t port_id, uint16_t queue_id, 4512 const struct rte_eth_rxtx_callback *user_cb); 4513 4514 /** 4515 * Remove a Tx packet callback from a given port and queue. 4516 * 4517 * This function is used to removed callbacks that were added to a NIC port 4518 * queue using rte_eth_add_tx_callback(). 4519 * 4520 * Note: the callback is removed from the callback list but it isn't freed 4521 * since the it may still be in use. The memory for the callback can be 4522 * subsequently freed back by the application by calling rte_free(): 4523 * 4524 * - Immediately - if the port is stopped, or the user knows that no 4525 * callbacks are in flight e.g. if called from the thread doing Rx/Tx 4526 * on that queue. 4527 * 4528 * - After a short delay - where the delay is sufficient to allow any 4529 * in-flight callbacks to complete. Alternately, the RCU mechanism can be 4530 * used to detect when data plane threads have ceased referencing the 4531 * callback memory. 4532 * 4533 * @param port_id 4534 * The port identifier of the Ethernet device. 4535 * @param queue_id 4536 * The queue on the Ethernet device from which the callback is to be removed. 4537 * @param user_cb 4538 * User supplied callback created via rte_eth_add_tx_callback(). 4539 * 4540 * @return 4541 * - 0: Success. Callback was removed. 4542 * - -ENODEV: If *port_id* is invalid. 4543 * - -ENOTSUP: Callback support is not available. 4544 * - -EINVAL: The queue_id is out of range, or the callback 4545 * is NULL or not found for the port/queue. 4546 */ 4547 int rte_eth_remove_tx_callback(uint16_t port_id, uint16_t queue_id, 4548 const struct rte_eth_rxtx_callback *user_cb); 4549 4550 /** 4551 * Retrieve information about given port's Rx queue. 4552 * 4553 * @param port_id 4554 * The port identifier of the Ethernet device. 4555 * @param queue_id 4556 * The Rx queue on the Ethernet device for which information 4557 * will be retrieved. 4558 * @param qinfo 4559 * A pointer to a structure of type *rte_eth_rxq_info_info* to be filled with 4560 * the information of the Ethernet device. 4561 * 4562 * @return 4563 * - 0: Success 4564 * - -ENODEV: If *port_id* is invalid. 4565 * - -ENOTSUP: routine is not supported by the device PMD. 4566 * - -EINVAL: The queue_id is out of range, or the queue 4567 * is hairpin queue. 4568 */ 4569 int rte_eth_rx_queue_info_get(uint16_t port_id, uint16_t queue_id, 4570 struct rte_eth_rxq_info *qinfo); 4571 4572 /** 4573 * Retrieve information about given port's Tx queue. 4574 * 4575 * @param port_id 4576 * The port identifier of the Ethernet device. 4577 * @param queue_id 4578 * The Tx queue on the Ethernet device for which information 4579 * will be retrieved. 4580 * @param qinfo 4581 * A pointer to a structure of type *rte_eth_txq_info_info* to be filled with 4582 * the information of the Ethernet device. 4583 * 4584 * @return 4585 * - 0: Success 4586 * - -ENODEV: If *port_id* is invalid. 4587 * - -ENOTSUP: routine is not supported by the device PMD. 4588 * - -EINVAL: The queue_id is out of range, or the queue 4589 * is hairpin queue. 4590 */ 4591 int rte_eth_tx_queue_info_get(uint16_t port_id, uint16_t queue_id, 4592 struct rte_eth_txq_info *qinfo); 4593 4594 /** 4595 * Retrieve information about the Rx packet burst mode. 4596 * 4597 * @param port_id 4598 * The port identifier of the Ethernet device. 4599 * @param queue_id 4600 * The Rx queue on the Ethernet device for which information 4601 * will be retrieved. 4602 * @param mode 4603 * A pointer to a structure of type *rte_eth_burst_mode* to be filled 4604 * with the information of the packet burst mode. 4605 * 4606 * @return 4607 * - 0: Success 4608 * - -ENODEV: If *port_id* is invalid. 4609 * - -ENOTSUP: routine is not supported by the device PMD. 4610 * - -EINVAL: The queue_id is out of range. 4611 */ 4612 int rte_eth_rx_burst_mode_get(uint16_t port_id, uint16_t queue_id, 4613 struct rte_eth_burst_mode *mode); 4614 4615 /** 4616 * Retrieve information about the Tx packet burst mode. 4617 * 4618 * @param port_id 4619 * The port identifier of the Ethernet device. 4620 * @param queue_id 4621 * The Tx queue on the Ethernet device for which information 4622 * will be retrieved. 4623 * @param mode 4624 * A pointer to a structure of type *rte_eth_burst_mode* to be filled 4625 * with the information of the packet burst mode. 4626 * 4627 * @return 4628 * - 0: Success 4629 * - -ENODEV: If *port_id* is invalid. 4630 * - -ENOTSUP: routine is not supported by the device PMD. 4631 * - -EINVAL: The queue_id is out of range. 4632 */ 4633 int rte_eth_tx_burst_mode_get(uint16_t port_id, uint16_t queue_id, 4634 struct rte_eth_burst_mode *mode); 4635 4636 /** 4637 * @warning 4638 * @b EXPERIMENTAL: this API may change without prior notice. 4639 * 4640 * Retrieve the monitor condition for a given receive queue. 4641 * 4642 * @param port_id 4643 * The port identifier of the Ethernet device. 4644 * @param queue_id 4645 * The Rx queue on the Ethernet device for which information 4646 * will be retrieved. 4647 * @param pmc 4648 * The pointer to power-optimized monitoring condition structure. 4649 * 4650 * @return 4651 * - 0: Success. 4652 * -ENOTSUP: Operation not supported. 4653 * -EINVAL: Invalid parameters. 4654 * -ENODEV: Invalid port ID. 4655 */ 4656 __rte_experimental 4657 int rte_eth_get_monitor_addr(uint16_t port_id, uint16_t queue_id, 4658 struct rte_power_monitor_cond *pmc); 4659 4660 /** 4661 * Retrieve device registers and register attributes (number of registers and 4662 * register size) 4663 * 4664 * @param port_id 4665 * The port identifier of the Ethernet device. 4666 * @param info 4667 * Pointer to rte_dev_reg_info structure to fill in. If info->data is 4668 * NULL the function fills in the width and length fields. If non-NULL 4669 * the registers are put into the buffer pointed at by the data field. 4670 * @return 4671 * - (0) if successful. 4672 * - (-ENOTSUP) if hardware doesn't support. 4673 * - (-EINVAL) if bad parameter. 4674 * - (-ENODEV) if *port_id* invalid. 4675 * - (-EIO) if device is removed. 4676 * - others depends on the specific operations implementation. 4677 */ 4678 int rte_eth_dev_get_reg_info(uint16_t port_id, struct rte_dev_reg_info *info); 4679 4680 /** 4681 * Retrieve size of device EEPROM 4682 * 4683 * @param port_id 4684 * The port identifier of the Ethernet device. 4685 * @return 4686 * - (>=0) EEPROM size if successful. 4687 * - (-ENOTSUP) if hardware doesn't support. 4688 * - (-ENODEV) if *port_id* invalid. 4689 * - (-EIO) if device is removed. 4690 * - others depends on the specific operations implementation. 4691 */ 4692 int rte_eth_dev_get_eeprom_length(uint16_t port_id); 4693 4694 /** 4695 * Retrieve EEPROM and EEPROM attribute 4696 * 4697 * @param port_id 4698 * The port identifier of the Ethernet device. 4699 * @param info 4700 * The template includes buffer for return EEPROM data and 4701 * EEPROM attributes to be filled. 4702 * @return 4703 * - (0) if successful. 4704 * - (-ENOTSUP) if hardware doesn't support. 4705 * - (-EINVAL) if bad parameter. 4706 * - (-ENODEV) if *port_id* invalid. 4707 * - (-EIO) if device is removed. 4708 * - others depends on the specific operations implementation. 4709 */ 4710 int rte_eth_dev_get_eeprom(uint16_t port_id, struct rte_dev_eeprom_info *info); 4711 4712 /** 4713 * Program EEPROM with provided data 4714 * 4715 * @param port_id 4716 * The port identifier of the Ethernet device. 4717 * @param info 4718 * The template includes EEPROM data for programming and 4719 * EEPROM attributes to be filled 4720 * @return 4721 * - (0) if successful. 4722 * - (-ENOTSUP) if hardware doesn't support. 4723 * - (-ENODEV) if *port_id* invalid. 4724 * - (-EINVAL) if bad parameter. 4725 * - (-EIO) if device is removed. 4726 * - others depends on the specific operations implementation. 4727 */ 4728 int rte_eth_dev_set_eeprom(uint16_t port_id, struct rte_dev_eeprom_info *info); 4729 4730 /** 4731 * @warning 4732 * @b EXPERIMENTAL: this API may change without prior notice. 4733 * 4734 * Retrieve the type and size of plugin module EEPROM 4735 * 4736 * @param port_id 4737 * The port identifier of the Ethernet device. 4738 * @param modinfo 4739 * The type and size of plugin module EEPROM. 4740 * @return 4741 * - (0) if successful. 4742 * - (-ENOTSUP) if hardware doesn't support. 4743 * - (-ENODEV) if *port_id* invalid. 4744 * - (-EINVAL) if bad parameter. 4745 * - (-EIO) if device is removed. 4746 * - others depends on the specific operations implementation. 4747 */ 4748 __rte_experimental 4749 int 4750 rte_eth_dev_get_module_info(uint16_t port_id, 4751 struct rte_eth_dev_module_info *modinfo); 4752 4753 /** 4754 * @warning 4755 * @b EXPERIMENTAL: this API may change without prior notice. 4756 * 4757 * Retrieve the data of plugin module EEPROM 4758 * 4759 * @param port_id 4760 * The port identifier of the Ethernet device. 4761 * @param info 4762 * The template includes the plugin module EEPROM attributes, and the 4763 * buffer for return plugin module EEPROM data. 4764 * @return 4765 * - (0) if successful. 4766 * - (-ENOTSUP) if hardware doesn't support. 4767 * - (-EINVAL) if bad parameter. 4768 * - (-ENODEV) if *port_id* invalid. 4769 * - (-EIO) if device is removed. 4770 * - others depends on the specific operations implementation. 4771 */ 4772 __rte_experimental 4773 int 4774 rte_eth_dev_get_module_eeprom(uint16_t port_id, 4775 struct rte_dev_eeprom_info *info); 4776 4777 /** 4778 * Set the list of multicast addresses to filter on an Ethernet device. 4779 * 4780 * @param port_id 4781 * The port identifier of the Ethernet device. 4782 * @param mc_addr_set 4783 * The array of multicast addresses to set. Equal to NULL when the function 4784 * is invoked to flush the set of filtered addresses. 4785 * @param nb_mc_addr 4786 * The number of multicast addresses in the *mc_addr_set* array. Equal to 0 4787 * when the function is invoked to flush the set of filtered addresses. 4788 * @return 4789 * - (0) if successful. 4790 * - (-ENODEV) if *port_id* invalid. 4791 * - (-EIO) if device is removed. 4792 * - (-ENOTSUP) if PMD of *port_id* doesn't support multicast filtering. 4793 * - (-ENOSPC) if *port_id* has not enough multicast filtering resources. 4794 * - (-EINVAL) if bad parameter. 4795 */ 4796 int rte_eth_dev_set_mc_addr_list(uint16_t port_id, 4797 struct rte_ether_addr *mc_addr_set, 4798 uint32_t nb_mc_addr); 4799 4800 /** 4801 * Enable IEEE1588/802.1AS timestamping for an Ethernet device. 4802 * 4803 * @param port_id 4804 * The port identifier of the Ethernet device. 4805 * 4806 * @return 4807 * - 0: Success. 4808 * - -ENODEV: The port ID is invalid. 4809 * - -EIO: if device is removed. 4810 * - -ENOTSUP: The function is not supported by the Ethernet driver. 4811 */ 4812 int rte_eth_timesync_enable(uint16_t port_id); 4813 4814 /** 4815 * Disable IEEE1588/802.1AS timestamping for an Ethernet device. 4816 * 4817 * @param port_id 4818 * The port identifier of the Ethernet device. 4819 * 4820 * @return 4821 * - 0: Success. 4822 * - -ENODEV: The port ID is invalid. 4823 * - -EIO: if device is removed. 4824 * - -ENOTSUP: The function is not supported by the Ethernet driver. 4825 */ 4826 int rte_eth_timesync_disable(uint16_t port_id); 4827 4828 /** 4829 * Read an IEEE1588/802.1AS Rx timestamp from an Ethernet device. 4830 * 4831 * @param port_id 4832 * The port identifier of the Ethernet device. 4833 * @param timestamp 4834 * Pointer to the timestamp struct. 4835 * @param flags 4836 * Device specific flags. Used to pass the Rx timesync register index to 4837 * i40e. Unused in igb/ixgbe, pass 0 instead. 4838 * 4839 * @return 4840 * - 0: Success. 4841 * - -EINVAL: No timestamp is available. 4842 * - -ENODEV: The port ID is invalid. 4843 * - -EIO: if device is removed. 4844 * - -ENOTSUP: The function is not supported by the Ethernet driver. 4845 */ 4846 int rte_eth_timesync_read_rx_timestamp(uint16_t port_id, 4847 struct timespec *timestamp, uint32_t flags); 4848 4849 /** 4850 * Read an IEEE1588/802.1AS Tx timestamp from an Ethernet device. 4851 * 4852 * @param port_id 4853 * The port identifier of the Ethernet device. 4854 * @param timestamp 4855 * Pointer to the timestamp struct. 4856 * 4857 * @return 4858 * - 0: Success. 4859 * - -EINVAL: No timestamp is available. 4860 * - -ENODEV: The port ID is invalid. 4861 * - -EIO: if device is removed. 4862 * - -ENOTSUP: The function is not supported by the Ethernet driver. 4863 */ 4864 int rte_eth_timesync_read_tx_timestamp(uint16_t port_id, 4865 struct timespec *timestamp); 4866 4867 /** 4868 * Adjust the timesync clock on an Ethernet device. 4869 * 4870 * This is usually used in conjunction with other Ethdev timesync functions to 4871 * synchronize the device time using the IEEE1588/802.1AS protocol. 4872 * 4873 * @param port_id 4874 * The port identifier of the Ethernet device. 4875 * @param delta 4876 * The adjustment in nanoseconds. 4877 * 4878 * @return 4879 * - 0: Success. 4880 * - -ENODEV: The port ID is invalid. 4881 * - -EIO: if device is removed. 4882 * - -ENOTSUP: The function is not supported by the Ethernet driver. 4883 */ 4884 int rte_eth_timesync_adjust_time(uint16_t port_id, int64_t delta); 4885 4886 /** 4887 * Read the time from the timesync clock on an Ethernet device. 4888 * 4889 * This is usually used in conjunction with other Ethdev timesync functions to 4890 * synchronize the device time using the IEEE1588/802.1AS protocol. 4891 * 4892 * @param port_id 4893 * The port identifier of the Ethernet device. 4894 * @param time 4895 * Pointer to the timespec struct that holds the time. 4896 * 4897 * @return 4898 * - 0: Success. 4899 * - -EINVAL: Bad parameter. 4900 */ 4901 int rte_eth_timesync_read_time(uint16_t port_id, struct timespec *time); 4902 4903 /** 4904 * Set the time of the timesync clock on an Ethernet device. 4905 * 4906 * This is usually used in conjunction with other Ethdev timesync functions to 4907 * synchronize the device time using the IEEE1588/802.1AS protocol. 4908 * 4909 * @param port_id 4910 * The port identifier of the Ethernet device. 4911 * @param time 4912 * Pointer to the timespec struct that holds the time. 4913 * 4914 * @return 4915 * - 0: Success. 4916 * - -EINVAL: No timestamp is available. 4917 * - -ENODEV: The port ID is invalid. 4918 * - -EIO: if device is removed. 4919 * - -ENOTSUP: The function is not supported by the Ethernet driver. 4920 */ 4921 int rte_eth_timesync_write_time(uint16_t port_id, const struct timespec *time); 4922 4923 /** 4924 * @warning 4925 * @b EXPERIMENTAL: this API may change without prior notice. 4926 * 4927 * Read the current clock counter of an Ethernet device 4928 * 4929 * This returns the current raw clock value of an Ethernet device. It is 4930 * a raw amount of ticks, with no given time reference. 4931 * The value returned here is from the same clock than the one 4932 * filling timestamp field of Rx packets when using hardware timestamp 4933 * offload. Therefore it can be used to compute a precise conversion of 4934 * the device clock to the real time. 4935 * 4936 * E.g, a simple heuristic to derivate the frequency would be: 4937 * uint64_t start, end; 4938 * rte_eth_read_clock(port, start); 4939 * rte_delay_ms(100); 4940 * rte_eth_read_clock(port, end); 4941 * double freq = (end - start) * 10; 4942 * 4943 * Compute a common reference with: 4944 * uint64_t base_time_sec = current_time(); 4945 * uint64_t base_clock; 4946 * rte_eth_read_clock(port, base_clock); 4947 * 4948 * Then, convert the raw mbuf timestamp with: 4949 * base_time_sec + (double)(*timestamp_dynfield(mbuf) - base_clock) / freq; 4950 * 4951 * This simple example will not provide a very good accuracy. One must 4952 * at least measure multiple times the frequency and do a regression. 4953 * To avoid deviation from the system time, the common reference can 4954 * be repeated from time to time. The integer division can also be 4955 * converted by a multiplication and a shift for better performance. 4956 * 4957 * @param port_id 4958 * The port identifier of the Ethernet device. 4959 * @param clock 4960 * Pointer to the uint64_t that holds the raw clock value. 4961 * 4962 * @return 4963 * - 0: Success. 4964 * - -ENODEV: The port ID is invalid. 4965 * - -ENOTSUP: The function is not supported by the Ethernet driver. 4966 * - -EINVAL: if bad parameter. 4967 */ 4968 __rte_experimental 4969 int 4970 rte_eth_read_clock(uint16_t port_id, uint64_t *clock); 4971 4972 /** 4973 * Get the port ID from device name. The device name should be specified 4974 * as below: 4975 * - PCIe address (Domain:Bus:Device.Function), for example- 0000:2:00.0 4976 * - SoC device name, for example- fsl-gmac0 4977 * - vdev dpdk name, for example- net_[pcap0|null0|tap0] 4978 * 4979 * @param name 4980 * pci address or name of the device 4981 * @param port_id 4982 * pointer to port identifier of the device 4983 * @return 4984 * - (0) if successful and port_id is filled. 4985 * - (-ENODEV or -EINVAL) on failure. 4986 */ 4987 int 4988 rte_eth_dev_get_port_by_name(const char *name, uint16_t *port_id); 4989 4990 /** 4991 * Get the device name from port ID. The device name is specified as below: 4992 * - PCIe address (Domain:Bus:Device.Function), for example- 0000:02:00.0 4993 * - SoC device name, for example- fsl-gmac0 4994 * - vdev dpdk name, for example- net_[pcap0|null0|tun0|tap0] 4995 * 4996 * @param port_id 4997 * Port identifier of the device. 4998 * @param name 4999 * Buffer of size RTE_ETH_NAME_MAX_LEN to store the name. 5000 * @return 5001 * - (0) if successful. 5002 * - (-ENODEV) if *port_id* is invalid. 5003 * - (-EINVAL) on failure. 5004 */ 5005 int 5006 rte_eth_dev_get_name_by_port(uint16_t port_id, char *name); 5007 5008 /** 5009 * Check that numbers of Rx and Tx descriptors satisfy descriptors limits from 5010 * the Ethernet device information, otherwise adjust them to boundaries. 5011 * 5012 * @param port_id 5013 * The port identifier of the Ethernet device. 5014 * @param nb_rx_desc 5015 * A pointer to a uint16_t where the number of receive 5016 * descriptors stored. 5017 * @param nb_tx_desc 5018 * A pointer to a uint16_t where the number of transmit 5019 * descriptors stored. 5020 * @return 5021 * - (0) if successful. 5022 * - (-ENOTSUP, -ENODEV or -EINVAL) on failure. 5023 */ 5024 int rte_eth_dev_adjust_nb_rx_tx_desc(uint16_t port_id, 5025 uint16_t *nb_rx_desc, 5026 uint16_t *nb_tx_desc); 5027 5028 /** 5029 * Test if a port supports specific mempool ops. 5030 * 5031 * @param port_id 5032 * Port identifier of the Ethernet device. 5033 * @param [in] pool 5034 * The name of the pool operations to test. 5035 * @return 5036 * - 0: best mempool ops choice for this port. 5037 * - 1: mempool ops are supported for this port. 5038 * - -ENOTSUP: mempool ops not supported for this port. 5039 * - -ENODEV: Invalid port Identifier. 5040 * - -EINVAL: Pool param is null. 5041 */ 5042 int 5043 rte_eth_dev_pool_ops_supported(uint16_t port_id, const char *pool); 5044 5045 /** 5046 * Get the security context for the Ethernet device. 5047 * 5048 * @param port_id 5049 * Port identifier of the Ethernet device 5050 * @return 5051 * - NULL on error. 5052 * - pointer to security context on success. 5053 */ 5054 void * 5055 rte_eth_dev_get_sec_ctx(uint16_t port_id); 5056 5057 /** 5058 * @warning 5059 * @b EXPERIMENTAL: this API may change, or be removed, without prior notice 5060 * 5061 * Query the device hairpin capabilities. 5062 * 5063 * @param port_id 5064 * The port identifier of the Ethernet device. 5065 * @param cap 5066 * Pointer to a structure that will hold the hairpin capabilities. 5067 * @return 5068 * - (0) if successful. 5069 * - (-ENOTSUP) if hardware doesn't support. 5070 * - (-EINVAL) if bad parameter. 5071 */ 5072 __rte_experimental 5073 int rte_eth_dev_hairpin_capability_get(uint16_t port_id, 5074 struct rte_eth_hairpin_cap *cap); 5075 5076 /** 5077 * @warning 5078 * @b EXPERIMENTAL: this structure may change without prior notice. 5079 * 5080 * Ethernet device representor ID range entry 5081 */ 5082 struct rte_eth_representor_range { 5083 enum rte_eth_representor_type type; /**< Representor type */ 5084 int controller; /**< Controller index */ 5085 int pf; /**< Physical function index */ 5086 __extension__ 5087 union { 5088 int vf; /**< VF start index */ 5089 int sf; /**< SF start index */ 5090 }; 5091 uint32_t id_base; /**< Representor ID start index */ 5092 uint32_t id_end; /**< Representor ID end index */ 5093 char name[RTE_DEV_NAME_MAX_LEN]; /**< Representor name */ 5094 }; 5095 5096 /** 5097 * @warning 5098 * @b EXPERIMENTAL: this structure may change without prior notice. 5099 * 5100 * Ethernet device representor information 5101 */ 5102 struct rte_eth_representor_info { 5103 uint16_t controller; /**< Controller ID of caller device. */ 5104 uint16_t pf; /**< Physical function ID of caller device. */ 5105 uint32_t nb_ranges_alloc; /**< Size of the ranges array. */ 5106 uint32_t nb_ranges; /**< Number of initialized ranges. */ 5107 struct rte_eth_representor_range ranges[];/**< Representor ID range. */ 5108 }; 5109 5110 /** 5111 * Retrieve the representor info of the device. 5112 * 5113 * Get device representor info to be able to calculate a unique 5114 * representor ID. @see rte_eth_representor_id_get helper. 5115 * 5116 * @param port_id 5117 * The port identifier of the device. 5118 * @param info 5119 * A pointer to a representor info structure. 5120 * NULL to return number of range entries and allocate memory 5121 * for next call to store detail. 5122 * The number of ranges that were written into this structure 5123 * will be placed into its nb_ranges field. This number cannot be 5124 * larger than the nb_ranges_alloc that by the user before calling 5125 * this function. It can be smaller than the value returned by the 5126 * function, however. 5127 * @return 5128 * - (-ENOTSUP) if operation is not supported. 5129 * - (-ENODEV) if *port_id* invalid. 5130 * - (-EIO) if device is removed. 5131 * - (>=0) number of available representor range entries. 5132 */ 5133 __rte_experimental 5134 int rte_eth_representor_info_get(uint16_t port_id, 5135 struct rte_eth_representor_info *info); 5136 5137 /** The NIC is able to deliver flag (if set) with packets to the PMD. */ 5138 #define RTE_ETH_RX_METADATA_USER_FLAG RTE_BIT64(0) 5139 5140 /** The NIC is able to deliver mark ID with packets to the PMD. */ 5141 #define RTE_ETH_RX_METADATA_USER_MARK RTE_BIT64(1) 5142 5143 /** The NIC is able to deliver tunnel ID with packets to the PMD. */ 5144 #define RTE_ETH_RX_METADATA_TUNNEL_ID RTE_BIT64(2) 5145 5146 /** 5147 * @warning 5148 * @b EXPERIMENTAL: this API may change without prior notice 5149 * 5150 * Negotiate the NIC's ability to deliver specific kinds of metadata to the PMD. 5151 * 5152 * Invoke this API before the first rte_eth_dev_configure() invocation 5153 * to let the PMD make preparations that are inconvenient to do later. 5154 * 5155 * The negotiation process is as follows: 5156 * 5157 * - the application requests features intending to use at least some of them; 5158 * - the PMD responds with the guaranteed subset of the requested feature set; 5159 * - the application can retry negotiation with another set of features; 5160 * - the application can pass zero to clear the negotiation result; 5161 * - the last negotiated result takes effect upon 5162 * the ethdev configure and start. 5163 * 5164 * @note 5165 * The PMD is supposed to first consider enabling the requested feature set 5166 * in its entirety. Only if it fails to do so, does it have the right to 5167 * respond with a smaller set of the originally requested features. 5168 * 5169 * @note 5170 * Return code (-ENOTSUP) does not necessarily mean that the requested 5171 * features are unsupported. In this case, the application should just 5172 * assume that these features can be used without prior negotiations. 5173 * 5174 * @param port_id 5175 * Port (ethdev) identifier 5176 * 5177 * @param[inout] features 5178 * Feature selection buffer 5179 * 5180 * @return 5181 * - (-EBUSY) if the port can't handle this in its current state; 5182 * - (-ENOTSUP) if the method itself is not supported by the PMD; 5183 * - (-ENODEV) if *port_id* is invalid; 5184 * - (-EINVAL) if *features* is NULL; 5185 * - (-EIO) if the device is removed; 5186 * - (0) on success 5187 */ 5188 __rte_experimental 5189 int rte_eth_rx_metadata_negotiate(uint16_t port_id, uint64_t *features); 5190 5191 #include <rte_ethdev_core.h> 5192 5193 /** 5194 * @internal 5195 * Helper routine for rte_eth_rx_burst(). 5196 * Should be called at exit from PMD's rte_eth_rx_bulk implementation. 5197 * Does necessary post-processing - invokes Rx callbacks if any, etc. 5198 * 5199 * @param port_id 5200 * The port identifier of the Ethernet device. 5201 * @param queue_id 5202 * The index of the receive queue from which to retrieve input packets. 5203 * @param rx_pkts 5204 * The address of an array of pointers to *rte_mbuf* structures that 5205 * have been retrieved from the device. 5206 * @param nb_rx 5207 * The number of packets that were retrieved from the device. 5208 * @param nb_pkts 5209 * The number of elements in @p rx_pkts array. 5210 * @param opaque 5211 * Opaque pointer of Rx queue callback related data. 5212 * 5213 * @return 5214 * The number of packets effectively supplied to the @p rx_pkts array. 5215 */ 5216 uint16_t rte_eth_call_rx_callbacks(uint16_t port_id, uint16_t queue_id, 5217 struct rte_mbuf **rx_pkts, uint16_t nb_rx, uint16_t nb_pkts, 5218 void *opaque); 5219 5220 /** 5221 * 5222 * Retrieve a burst of input packets from a receive queue of an Ethernet 5223 * device. The retrieved packets are stored in *rte_mbuf* structures whose 5224 * pointers are supplied in the *rx_pkts* array. 5225 * 5226 * The rte_eth_rx_burst() function loops, parsing the Rx ring of the 5227 * receive queue, up to *nb_pkts* packets, and for each completed Rx 5228 * descriptor in the ring, it performs the following operations: 5229 * 5230 * - Initialize the *rte_mbuf* data structure associated with the 5231 * Rx descriptor according to the information provided by the NIC into 5232 * that Rx descriptor. 5233 * 5234 * - Store the *rte_mbuf* data structure into the next entry of the 5235 * *rx_pkts* array. 5236 * 5237 * - Replenish the Rx descriptor with a new *rte_mbuf* buffer 5238 * allocated from the memory pool associated with the receive queue at 5239 * initialization time. 5240 * 5241 * When retrieving an input packet that was scattered by the controller 5242 * into multiple receive descriptors, the rte_eth_rx_burst() function 5243 * appends the associated *rte_mbuf* buffers to the first buffer of the 5244 * packet. 5245 * 5246 * The rte_eth_rx_burst() function returns the number of packets 5247 * actually retrieved, which is the number of *rte_mbuf* data structures 5248 * effectively supplied into the *rx_pkts* array. 5249 * A return value equal to *nb_pkts* indicates that the Rx queue contained 5250 * at least *rx_pkts* packets, and this is likely to signify that other 5251 * received packets remain in the input queue. Applications implementing 5252 * a "retrieve as much received packets as possible" policy can check this 5253 * specific case and keep invoking the rte_eth_rx_burst() function until 5254 * a value less than *nb_pkts* is returned. 5255 * 5256 * This receive method has the following advantages: 5257 * 5258 * - It allows a run-to-completion network stack engine to retrieve and 5259 * to immediately process received packets in a fast burst-oriented 5260 * approach, avoiding the overhead of unnecessary intermediate packet 5261 * queue/dequeue operations. 5262 * 5263 * - Conversely, it also allows an asynchronous-oriented processing 5264 * method to retrieve bursts of received packets and to immediately 5265 * queue them for further parallel processing by another logical core, 5266 * for instance. However, instead of having received packets being 5267 * individually queued by the driver, this approach allows the caller 5268 * of the rte_eth_rx_burst() function to queue a burst of retrieved 5269 * packets at a time and therefore dramatically reduce the cost of 5270 * enqueue/dequeue operations per packet. 5271 * 5272 * - It allows the rte_eth_rx_burst() function of the driver to take 5273 * advantage of burst-oriented hardware features (CPU cache, 5274 * prefetch instructions, and so on) to minimize the number of CPU 5275 * cycles per packet. 5276 * 5277 * To summarize, the proposed receive API enables many 5278 * burst-oriented optimizations in both synchronous and asynchronous 5279 * packet processing environments with no overhead in both cases. 5280 * 5281 * @note 5282 * Some drivers using vector instructions require that *nb_pkts* is 5283 * divisible by 4 or 8, depending on the driver implementation. 5284 * 5285 * The rte_eth_rx_burst() function does not provide any error 5286 * notification to avoid the corresponding overhead. As a hint, the 5287 * upper-level application might check the status of the device link once 5288 * being systematically returned a 0 value for a given number of tries. 5289 * 5290 * @param port_id 5291 * The port identifier of the Ethernet device. 5292 * @param queue_id 5293 * The index of the receive queue from which to retrieve input packets. 5294 * The value must be in the range [0, nb_rx_queue - 1] previously supplied 5295 * to rte_eth_dev_configure(). 5296 * @param rx_pkts 5297 * The address of an array of pointers to *rte_mbuf* structures that 5298 * must be large enough to store *nb_pkts* pointers in it. 5299 * @param nb_pkts 5300 * The maximum number of packets to retrieve. 5301 * The value must be divisible by 8 in order to work with any driver. 5302 * @return 5303 * The number of packets actually retrieved, which is the number 5304 * of pointers to *rte_mbuf* structures effectively supplied to the 5305 * *rx_pkts* array. 5306 */ 5307 static inline uint16_t 5308 rte_eth_rx_burst(uint16_t port_id, uint16_t queue_id, 5309 struct rte_mbuf **rx_pkts, const uint16_t nb_pkts) 5310 { 5311 uint16_t nb_rx; 5312 struct rte_eth_fp_ops *p; 5313 void *qd; 5314 5315 #ifdef RTE_ETHDEV_DEBUG_RX 5316 if (port_id >= RTE_MAX_ETHPORTS || 5317 queue_id >= RTE_MAX_QUEUES_PER_PORT) { 5318 RTE_ETHDEV_LOG(ERR, 5319 "Invalid port_id=%u or queue_id=%u\n", 5320 port_id, queue_id); 5321 return 0; 5322 } 5323 #endif 5324 5325 /* fetch pointer to queue data */ 5326 p = &rte_eth_fp_ops[port_id]; 5327 qd = p->rxq.data[queue_id]; 5328 5329 #ifdef RTE_ETHDEV_DEBUG_RX 5330 RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, 0); 5331 5332 if (qd == NULL) { 5333 RTE_ETHDEV_LOG(ERR, "Invalid Rx queue_id=%u for port_id=%u\n", 5334 queue_id, port_id); 5335 return 0; 5336 } 5337 #endif 5338 5339 nb_rx = p->rx_pkt_burst(qd, rx_pkts, nb_pkts); 5340 5341 #ifdef RTE_ETHDEV_RXTX_CALLBACKS 5342 { 5343 void *cb; 5344 5345 /* __ATOMIC_RELEASE memory order was used when the 5346 * call back was inserted into the list. 5347 * Since there is a clear dependency between loading 5348 * cb and cb->fn/cb->next, __ATOMIC_ACQUIRE memory order is 5349 * not required. 5350 */ 5351 cb = __atomic_load_n((void **)&p->rxq.clbk[queue_id], 5352 __ATOMIC_RELAXED); 5353 if (unlikely(cb != NULL)) 5354 nb_rx = rte_eth_call_rx_callbacks(port_id, queue_id, 5355 rx_pkts, nb_rx, nb_pkts, cb); 5356 } 5357 #endif 5358 5359 rte_ethdev_trace_rx_burst(port_id, queue_id, (void **)rx_pkts, nb_rx); 5360 return nb_rx; 5361 } 5362 5363 /** 5364 * Get the number of used descriptors of a Rx queue 5365 * 5366 * @param port_id 5367 * The port identifier of the Ethernet device. 5368 * @param queue_id 5369 * The queue ID on the specific port. 5370 * @return 5371 * The number of used descriptors in the specific queue, or: 5372 * - (-ENODEV) if *port_id* is invalid. 5373 * (-EINVAL) if *queue_id* is invalid 5374 * (-ENOTSUP) if the device does not support this function 5375 */ 5376 static inline int 5377 rte_eth_rx_queue_count(uint16_t port_id, uint16_t queue_id) 5378 { 5379 struct rte_eth_fp_ops *p; 5380 void *qd; 5381 5382 if (port_id >= RTE_MAX_ETHPORTS || 5383 queue_id >= RTE_MAX_QUEUES_PER_PORT) { 5384 RTE_ETHDEV_LOG(ERR, 5385 "Invalid port_id=%u or queue_id=%u\n", 5386 port_id, queue_id); 5387 return -EINVAL; 5388 } 5389 5390 /* fetch pointer to queue data */ 5391 p = &rte_eth_fp_ops[port_id]; 5392 qd = p->rxq.data[queue_id]; 5393 5394 RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV); 5395 RTE_FUNC_PTR_OR_ERR_RET(*p->rx_queue_count, -ENOTSUP); 5396 if (qd == NULL) 5397 return -EINVAL; 5398 5399 return (int)(*p->rx_queue_count)(qd); 5400 } 5401 5402 /**@{@name Rx hardware descriptor states 5403 * @see rte_eth_rx_descriptor_status 5404 */ 5405 #define RTE_ETH_RX_DESC_AVAIL 0 /**< Desc available for hw. */ 5406 #define RTE_ETH_RX_DESC_DONE 1 /**< Desc done, filled by hw. */ 5407 #define RTE_ETH_RX_DESC_UNAVAIL 2 /**< Desc used by driver or hw. */ 5408 /**@}*/ 5409 5410 /** 5411 * Check the status of a Rx descriptor in the queue 5412 * 5413 * It should be called in a similar context than the Rx function: 5414 * - on a dataplane core 5415 * - not concurrently on the same queue 5416 * 5417 * Since it's a dataplane function, no check is performed on port_id and 5418 * queue_id. The caller must therefore ensure that the port is enabled 5419 * and the queue is configured and running. 5420 * 5421 * Note: accessing to a random descriptor in the ring may trigger cache 5422 * misses and have a performance impact. 5423 * 5424 * @param port_id 5425 * A valid port identifier of the Ethernet device which. 5426 * @param queue_id 5427 * A valid Rx queue identifier on this port. 5428 * @param offset 5429 * The offset of the descriptor starting from tail (0 is the next 5430 * packet to be received by the driver). 5431 * 5432 * @return 5433 * - (RTE_ETH_RX_DESC_AVAIL): Descriptor is available for the hardware to 5434 * receive a packet. 5435 * - (RTE_ETH_RX_DESC_DONE): Descriptor is done, it is filled by hw, but 5436 * not yet processed by the driver (i.e. in the receive queue). 5437 * - (RTE_ETH_RX_DESC_UNAVAIL): Descriptor is unavailable, either hold by 5438 * the driver and not yet returned to hw, or reserved by the hw. 5439 * - (-EINVAL) bad descriptor offset. 5440 * - (-ENOTSUP) if the device does not support this function. 5441 * - (-ENODEV) bad port or queue (only if compiled with debug). 5442 */ 5443 static inline int 5444 rte_eth_rx_descriptor_status(uint16_t port_id, uint16_t queue_id, 5445 uint16_t offset) 5446 { 5447 struct rte_eth_fp_ops *p; 5448 void *qd; 5449 5450 #ifdef RTE_ETHDEV_DEBUG_RX 5451 if (port_id >= RTE_MAX_ETHPORTS || 5452 queue_id >= RTE_MAX_QUEUES_PER_PORT) { 5453 RTE_ETHDEV_LOG(ERR, 5454 "Invalid port_id=%u or queue_id=%u\n", 5455 port_id, queue_id); 5456 return -EINVAL; 5457 } 5458 #endif 5459 5460 /* fetch pointer to queue data */ 5461 p = &rte_eth_fp_ops[port_id]; 5462 qd = p->rxq.data[queue_id]; 5463 5464 #ifdef RTE_ETHDEV_DEBUG_RX 5465 RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV); 5466 if (qd == NULL) 5467 return -ENODEV; 5468 #endif 5469 RTE_FUNC_PTR_OR_ERR_RET(*p->rx_descriptor_status, -ENOTSUP); 5470 return (*p->rx_descriptor_status)(qd, offset); 5471 } 5472 5473 /**@{@name Tx hardware descriptor states 5474 * @see rte_eth_tx_descriptor_status 5475 */ 5476 #define RTE_ETH_TX_DESC_FULL 0 /**< Desc filled for hw, waiting xmit. */ 5477 #define RTE_ETH_TX_DESC_DONE 1 /**< Desc done, packet is transmitted. */ 5478 #define RTE_ETH_TX_DESC_UNAVAIL 2 /**< Desc used by driver or hw. */ 5479 /**@}*/ 5480 5481 /** 5482 * Check the status of a Tx descriptor in the queue. 5483 * 5484 * It should be called in a similar context than the Tx function: 5485 * - on a dataplane core 5486 * - not concurrently on the same queue 5487 * 5488 * Since it's a dataplane function, no check is performed on port_id and 5489 * queue_id. The caller must therefore ensure that the port is enabled 5490 * and the queue is configured and running. 5491 * 5492 * Note: accessing to a random descriptor in the ring may trigger cache 5493 * misses and have a performance impact. 5494 * 5495 * @param port_id 5496 * A valid port identifier of the Ethernet device which. 5497 * @param queue_id 5498 * A valid Tx queue identifier on this port. 5499 * @param offset 5500 * The offset of the descriptor starting from tail (0 is the place where 5501 * the next packet will be send). 5502 * 5503 * @return 5504 * - (RTE_ETH_TX_DESC_FULL) Descriptor is being processed by the hw, i.e. 5505 * in the transmit queue. 5506 * - (RTE_ETH_TX_DESC_DONE) Hardware is done with this descriptor, it can 5507 * be reused by the driver. 5508 * - (RTE_ETH_TX_DESC_UNAVAIL): Descriptor is unavailable, reserved by the 5509 * driver or the hardware. 5510 * - (-EINVAL) bad descriptor offset. 5511 * - (-ENOTSUP) if the device does not support this function. 5512 * - (-ENODEV) bad port or queue (only if compiled with debug). 5513 */ 5514 static inline int rte_eth_tx_descriptor_status(uint16_t port_id, 5515 uint16_t queue_id, uint16_t offset) 5516 { 5517 struct rte_eth_fp_ops *p; 5518 void *qd; 5519 5520 #ifdef RTE_ETHDEV_DEBUG_TX 5521 if (port_id >= RTE_MAX_ETHPORTS || 5522 queue_id >= RTE_MAX_QUEUES_PER_PORT) { 5523 RTE_ETHDEV_LOG(ERR, 5524 "Invalid port_id=%u or queue_id=%u\n", 5525 port_id, queue_id); 5526 return -EINVAL; 5527 } 5528 #endif 5529 5530 /* fetch pointer to queue data */ 5531 p = &rte_eth_fp_ops[port_id]; 5532 qd = p->txq.data[queue_id]; 5533 5534 #ifdef RTE_ETHDEV_DEBUG_TX 5535 RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV); 5536 if (qd == NULL) 5537 return -ENODEV; 5538 #endif 5539 RTE_FUNC_PTR_OR_ERR_RET(*p->tx_descriptor_status, -ENOTSUP); 5540 return (*p->tx_descriptor_status)(qd, offset); 5541 } 5542 5543 /** 5544 * @internal 5545 * Helper routine for rte_eth_tx_burst(). 5546 * Should be called before entry PMD's rte_eth_tx_bulk implementation. 5547 * Does necessary pre-processing - invokes Tx callbacks if any, etc. 5548 * 5549 * @param port_id 5550 * The port identifier of the Ethernet device. 5551 * @param queue_id 5552 * The index of the transmit queue through which output packets must be 5553 * sent. 5554 * @param tx_pkts 5555 * The address of an array of *nb_pkts* pointers to *rte_mbuf* structures 5556 * which contain the output packets. 5557 * @param nb_pkts 5558 * The maximum number of packets to transmit. 5559 * @return 5560 * The number of output packets to transmit. 5561 */ 5562 uint16_t rte_eth_call_tx_callbacks(uint16_t port_id, uint16_t queue_id, 5563 struct rte_mbuf **tx_pkts, uint16_t nb_pkts, void *opaque); 5564 5565 /** 5566 * Send a burst of output packets on a transmit queue of an Ethernet device. 5567 * 5568 * The rte_eth_tx_burst() function is invoked to transmit output packets 5569 * on the output queue *queue_id* of the Ethernet device designated by its 5570 * *port_id*. 5571 * The *nb_pkts* parameter is the number of packets to send which are 5572 * supplied in the *tx_pkts* array of *rte_mbuf* structures, each of them 5573 * allocated from a pool created with rte_pktmbuf_pool_create(). 5574 * The rte_eth_tx_burst() function loops, sending *nb_pkts* packets, 5575 * up to the number of transmit descriptors available in the Tx ring of the 5576 * transmit queue. 5577 * For each packet to send, the rte_eth_tx_burst() function performs 5578 * the following operations: 5579 * 5580 * - Pick up the next available descriptor in the transmit ring. 5581 * 5582 * - Free the network buffer previously sent with that descriptor, if any. 5583 * 5584 * - Initialize the transmit descriptor with the information provided 5585 * in the *rte_mbuf data structure. 5586 * 5587 * In the case of a segmented packet composed of a list of *rte_mbuf* buffers, 5588 * the rte_eth_tx_burst() function uses several transmit descriptors 5589 * of the ring. 5590 * 5591 * The rte_eth_tx_burst() function returns the number of packets it 5592 * actually sent. A return value equal to *nb_pkts* means that all packets 5593 * have been sent, and this is likely to signify that other output packets 5594 * could be immediately transmitted again. Applications that implement a 5595 * "send as many packets to transmit as possible" policy can check this 5596 * specific case and keep invoking the rte_eth_tx_burst() function until 5597 * a value less than *nb_pkts* is returned. 5598 * 5599 * It is the responsibility of the rte_eth_tx_burst() function to 5600 * transparently free the memory buffers of packets previously sent. 5601 * This feature is driven by the *tx_free_thresh* value supplied to the 5602 * rte_eth_dev_configure() function at device configuration time. 5603 * When the number of free Tx descriptors drops below this threshold, the 5604 * rte_eth_tx_burst() function must [attempt to] free the *rte_mbuf* buffers 5605 * of those packets whose transmission was effectively completed. 5606 * 5607 * If the PMD is RTE_ETH_TX_OFFLOAD_MT_LOCKFREE capable, multiple threads can 5608 * invoke this function concurrently on the same Tx queue without SW lock. 5609 * @see rte_eth_dev_info_get, struct rte_eth_txconf::offloads 5610 * 5611 * @see rte_eth_tx_prepare to perform some prior checks or adjustments 5612 * for offloads. 5613 * 5614 * @param port_id 5615 * The port identifier of the Ethernet device. 5616 * @param queue_id 5617 * The index of the transmit queue through which output packets must be 5618 * sent. 5619 * The value must be in the range [0, nb_tx_queue - 1] previously supplied 5620 * to rte_eth_dev_configure(). 5621 * @param tx_pkts 5622 * The address of an array of *nb_pkts* pointers to *rte_mbuf* structures 5623 * which contain the output packets. 5624 * @param nb_pkts 5625 * The maximum number of packets to transmit. 5626 * @return 5627 * The number of output packets actually stored in transmit descriptors of 5628 * the transmit ring. The return value can be less than the value of the 5629 * *tx_pkts* parameter when the transmit ring is full or has been filled up. 5630 */ 5631 static inline uint16_t 5632 rte_eth_tx_burst(uint16_t port_id, uint16_t queue_id, 5633 struct rte_mbuf **tx_pkts, uint16_t nb_pkts) 5634 { 5635 struct rte_eth_fp_ops *p; 5636 void *qd; 5637 5638 #ifdef RTE_ETHDEV_DEBUG_TX 5639 if (port_id >= RTE_MAX_ETHPORTS || 5640 queue_id >= RTE_MAX_QUEUES_PER_PORT) { 5641 RTE_ETHDEV_LOG(ERR, 5642 "Invalid port_id=%u or queue_id=%u\n", 5643 port_id, queue_id); 5644 return 0; 5645 } 5646 #endif 5647 5648 /* fetch pointer to queue data */ 5649 p = &rte_eth_fp_ops[port_id]; 5650 qd = p->txq.data[queue_id]; 5651 5652 #ifdef RTE_ETHDEV_DEBUG_TX 5653 RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, 0); 5654 5655 if (qd == NULL) { 5656 RTE_ETHDEV_LOG(ERR, "Invalid Tx queue_id=%u for port_id=%u\n", 5657 queue_id, port_id); 5658 return 0; 5659 } 5660 #endif 5661 5662 #ifdef RTE_ETHDEV_RXTX_CALLBACKS 5663 { 5664 void *cb; 5665 5666 /* __ATOMIC_RELEASE memory order was used when the 5667 * call back was inserted into the list. 5668 * Since there is a clear dependency between loading 5669 * cb and cb->fn/cb->next, __ATOMIC_ACQUIRE memory order is 5670 * not required. 5671 */ 5672 cb = __atomic_load_n((void **)&p->txq.clbk[queue_id], 5673 __ATOMIC_RELAXED); 5674 if (unlikely(cb != NULL)) 5675 nb_pkts = rte_eth_call_tx_callbacks(port_id, queue_id, 5676 tx_pkts, nb_pkts, cb); 5677 } 5678 #endif 5679 5680 nb_pkts = p->tx_pkt_burst(qd, tx_pkts, nb_pkts); 5681 5682 rte_ethdev_trace_tx_burst(port_id, queue_id, (void **)tx_pkts, nb_pkts); 5683 return nb_pkts; 5684 } 5685 5686 /** 5687 * Process a burst of output packets on a transmit queue of an Ethernet device. 5688 * 5689 * The rte_eth_tx_prepare() function is invoked to prepare output packets to be 5690 * transmitted on the output queue *queue_id* of the Ethernet device designated 5691 * by its *port_id*. 5692 * The *nb_pkts* parameter is the number of packets to be prepared which are 5693 * supplied in the *tx_pkts* array of *rte_mbuf* structures, each of them 5694 * allocated from a pool created with rte_pktmbuf_pool_create(). 5695 * For each packet to send, the rte_eth_tx_prepare() function performs 5696 * the following operations: 5697 * 5698 * - Check if packet meets devices requirements for Tx offloads. 5699 * 5700 * - Check limitations about number of segments. 5701 * 5702 * - Check additional requirements when debug is enabled. 5703 * 5704 * - Update and/or reset required checksums when Tx offload is set for packet. 5705 * 5706 * Since this function can modify packet data, provided mbufs must be safely 5707 * writable (e.g. modified data cannot be in shared segment). 5708 * 5709 * The rte_eth_tx_prepare() function returns the number of packets ready to be 5710 * sent. A return value equal to *nb_pkts* means that all packets are valid and 5711 * ready to be sent, otherwise stops processing on the first invalid packet and 5712 * leaves the rest packets untouched. 5713 * 5714 * When this functionality is not implemented in the driver, all packets are 5715 * are returned untouched. 5716 * 5717 * @param port_id 5718 * The port identifier of the Ethernet device. 5719 * The value must be a valid port ID. 5720 * @param queue_id 5721 * The index of the transmit queue through which output packets must be 5722 * sent. 5723 * The value must be in the range [0, nb_tx_queue - 1] previously supplied 5724 * to rte_eth_dev_configure(). 5725 * @param tx_pkts 5726 * The address of an array of *nb_pkts* pointers to *rte_mbuf* structures 5727 * which contain the output packets. 5728 * @param nb_pkts 5729 * The maximum number of packets to process. 5730 * @return 5731 * The number of packets correct and ready to be sent. The return value can be 5732 * less than the value of the *tx_pkts* parameter when some packet doesn't 5733 * meet devices requirements with rte_errno set appropriately: 5734 * - EINVAL: offload flags are not correctly set 5735 * - ENOTSUP: the offload feature is not supported by the hardware 5736 * - ENODEV: if *port_id* is invalid (with debug enabled only) 5737 * 5738 */ 5739 5740 #ifndef RTE_ETHDEV_TX_PREPARE_NOOP 5741 5742 static inline uint16_t 5743 rte_eth_tx_prepare(uint16_t port_id, uint16_t queue_id, 5744 struct rte_mbuf **tx_pkts, uint16_t nb_pkts) 5745 { 5746 struct rte_eth_fp_ops *p; 5747 void *qd; 5748 5749 #ifdef RTE_ETHDEV_DEBUG_TX 5750 if (port_id >= RTE_MAX_ETHPORTS || 5751 queue_id >= RTE_MAX_QUEUES_PER_PORT) { 5752 RTE_ETHDEV_LOG(ERR, 5753 "Invalid port_id=%u or queue_id=%u\n", 5754 port_id, queue_id); 5755 rte_errno = ENODEV; 5756 return 0; 5757 } 5758 #endif 5759 5760 /* fetch pointer to queue data */ 5761 p = &rte_eth_fp_ops[port_id]; 5762 qd = p->txq.data[queue_id]; 5763 5764 #ifdef RTE_ETHDEV_DEBUG_TX 5765 if (!rte_eth_dev_is_valid_port(port_id)) { 5766 RTE_ETHDEV_LOG(ERR, "Invalid Tx port_id=%u\n", port_id); 5767 rte_errno = ENODEV; 5768 return 0; 5769 } 5770 if (qd == NULL) { 5771 RTE_ETHDEV_LOG(ERR, "Invalid Tx queue_id=%u for port_id=%u\n", 5772 queue_id, port_id); 5773 rte_errno = EINVAL; 5774 return 0; 5775 } 5776 #endif 5777 5778 if (!p->tx_pkt_prepare) 5779 return nb_pkts; 5780 5781 return p->tx_pkt_prepare(qd, tx_pkts, nb_pkts); 5782 } 5783 5784 #else 5785 5786 /* 5787 * Native NOOP operation for compilation targets which doesn't require any 5788 * preparations steps, and functional NOOP may introduce unnecessary performance 5789 * drop. 5790 * 5791 * Generally this is not a good idea to turn it on globally and didn't should 5792 * be used if behavior of tx_preparation can change. 5793 */ 5794 5795 static inline uint16_t 5796 rte_eth_tx_prepare(__rte_unused uint16_t port_id, 5797 __rte_unused uint16_t queue_id, 5798 __rte_unused struct rte_mbuf **tx_pkts, uint16_t nb_pkts) 5799 { 5800 return nb_pkts; 5801 } 5802 5803 #endif 5804 5805 /** 5806 * Send any packets queued up for transmission on a port and HW queue 5807 * 5808 * This causes an explicit flush of packets previously buffered via the 5809 * rte_eth_tx_buffer() function. It returns the number of packets successfully 5810 * sent to the NIC, and calls the error callback for any unsent packets. Unless 5811 * explicitly set up otherwise, the default callback simply frees the unsent 5812 * packets back to the owning mempool. 5813 * 5814 * @param port_id 5815 * The port identifier of the Ethernet device. 5816 * @param queue_id 5817 * The index of the transmit queue through which output packets must be 5818 * sent. 5819 * The value must be in the range [0, nb_tx_queue - 1] previously supplied 5820 * to rte_eth_dev_configure(). 5821 * @param buffer 5822 * Buffer of packets to be transmit. 5823 * @return 5824 * The number of packets successfully sent to the Ethernet device. The error 5825 * callback is called for any packets which could not be sent. 5826 */ 5827 static inline uint16_t 5828 rte_eth_tx_buffer_flush(uint16_t port_id, uint16_t queue_id, 5829 struct rte_eth_dev_tx_buffer *buffer) 5830 { 5831 uint16_t sent; 5832 uint16_t to_send = buffer->length; 5833 5834 if (to_send == 0) 5835 return 0; 5836 5837 sent = rte_eth_tx_burst(port_id, queue_id, buffer->pkts, to_send); 5838 5839 buffer->length = 0; 5840 5841 /* All packets sent, or to be dealt with by callback below */ 5842 if (unlikely(sent != to_send)) 5843 buffer->error_callback(&buffer->pkts[sent], 5844 (uint16_t)(to_send - sent), 5845 buffer->error_userdata); 5846 5847 return sent; 5848 } 5849 5850 /** 5851 * Buffer a single packet for future transmission on a port and queue 5852 * 5853 * This function takes a single mbuf/packet and buffers it for later 5854 * transmission on the particular port and queue specified. Once the buffer is 5855 * full of packets, an attempt will be made to transmit all the buffered 5856 * packets. In case of error, where not all packets can be transmitted, a 5857 * callback is called with the unsent packets as a parameter. If no callback 5858 * is explicitly set up, the unsent packets are just freed back to the owning 5859 * mempool. The function returns the number of packets actually sent i.e. 5860 * 0 if no buffer flush occurred, otherwise the number of packets successfully 5861 * flushed 5862 * 5863 * @param port_id 5864 * The port identifier of the Ethernet device. 5865 * @param queue_id 5866 * The index of the transmit queue through which output packets must be 5867 * sent. 5868 * The value must be in the range [0, nb_tx_queue - 1] previously supplied 5869 * to rte_eth_dev_configure(). 5870 * @param buffer 5871 * Buffer used to collect packets to be sent. 5872 * @param tx_pkt 5873 * Pointer to the packet mbuf to be sent. 5874 * @return 5875 * 0 = packet has been buffered for later transmission 5876 * N > 0 = packet has been buffered, and the buffer was subsequently flushed, 5877 * causing N packets to be sent, and the error callback to be called for 5878 * the rest. 5879 */ 5880 static __rte_always_inline uint16_t 5881 rte_eth_tx_buffer(uint16_t port_id, uint16_t queue_id, 5882 struct rte_eth_dev_tx_buffer *buffer, struct rte_mbuf *tx_pkt) 5883 { 5884 buffer->pkts[buffer->length++] = tx_pkt; 5885 if (buffer->length < buffer->size) 5886 return 0; 5887 5888 return rte_eth_tx_buffer_flush(port_id, queue_id, buffer); 5889 } 5890 5891 #ifdef __cplusplus 5892 } 5893 #endif 5894 5895 #endif /* _RTE_ETHDEV_H_ */ 5896