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34 #ifndef _RTE_ETHDEV_H_
35 #define _RTE_ETHDEV_H_
40 * RTE Ethernet Device API
42 * The Ethernet Device API is composed of two parts:
44 * - The application-oriented Ethernet API that includes functions to setup
45 * an Ethernet device (configure it, setup its RX and TX queues and start it),
46 * to get its MAC address, the speed and the status of its physical link,
47 * to receive and to transmit packets, and so on.
49 * - The driver-oriented Ethernet API that exports a function allowing
50 * an Ethernet Poll Mode Driver (PMD) to simultaneously register itself as
51 * an Ethernet device driver and as a PCI driver for a set of matching PCI
52 * [Ethernet] devices classes.
54 * By default, all the functions of the Ethernet Device API exported by a PMD
55 * are lock-free functions which assume to not be invoked in parallel on
56 * different logical cores to work on the same target object. For instance,
57 * the receive function of a PMD cannot be invoked in parallel on two logical
58 * cores to poll the same RX queue [of the same port]. Of course, this function
59 * can be invoked in parallel by different logical cores on different RX queues.
60 * It is the responsibility of the upper level application to enforce this rule.
62 * If needed, parallel accesses by multiple logical cores to shared queues
63 * shall be explicitly protected by dedicated inline lock-aware functions
64 * built on top of their corresponding lock-free functions of the PMD API.
66 * In all functions of the Ethernet API, the Ethernet device is
67 * designated by an integer >= 0 named the device port identifier.
69 * At the Ethernet driver level, Ethernet devices are represented by a generic
70 * data structure of type *rte_eth_dev*.
72 * Ethernet devices are dynamically registered during the PCI probing phase
73 * performed at EAL initialization time.
74 * When an Ethernet device is being probed, an *rte_eth_dev* structure and
75 * a new port identifier are allocated for that device. Then, the eth_dev_init()
76 * function supplied by the Ethernet driver matching the probed PCI
77 * device is invoked to properly initialize the device.
79 * The role of the device init function consists of resetting the hardware,
80 * checking access to Non-volatile Memory (NVM), reading the MAC address
83 * If the device init operation is successful, the correspondence between
84 * the port identifier assigned to the new device and its associated
85 * *rte_eth_dev* structure is effectively registered.
86 * Otherwise, both the *rte_eth_dev* structure and the port identifier are
89 * The functions exported by the application Ethernet API to setup a device
90 * designated by its port identifier must be invoked in the following order:
91 * - rte_eth_dev_configure()
92 * - rte_eth_tx_queue_setup()
93 * - rte_eth_rx_queue_setup()
94 * - rte_eth_dev_start()
96 * Then, the network application can invoke, in any order, the functions
97 * exported by the Ethernet API to get the MAC address of a given device, to
98 * get the speed and the status of a device physical link, to receive/transmit
99 * [burst of] packets, and so on.
101 * If the application wants to change the configuration (i.e. call
102 * rte_eth_dev_configure(), rte_eth_tx_queue_setup(), or
103 * rte_eth_rx_queue_setup()), it must call rte_eth_dev_stop() first to stop the
104 * device and then do the reconfiguration before calling rte_eth_dev_start()
105 * again. The transmit and receive functions should not be invoked when the
108 * Please note that some configuration is not stored between calls to
109 * rte_eth_dev_stop()/rte_eth_dev_start(). The following configuration will
112 * - flow control settings
113 * - receive mode configuration (promiscuous mode, hardware checksum mode,
114 * RSS/VMDQ settings etc.)
115 * - VLAN filtering configuration
116 * - MAC addresses supplied to MAC address array
117 * - flow director filtering mode (but not filtering rules)
118 * - NIC queue statistics mappings
120 * Any other configuration will not be stored and will need to be re-entered
121 * after a call to rte_eth_dev_start().
123 * Finally, a network application can close an Ethernet device by invoking the
124 * rte_eth_dev_close() function.
126 * Each function of the application Ethernet API invokes a specific function
127 * of the PMD that controls the target device designated by its port
129 * For this purpose, all device-specific functions of an Ethernet driver are
130 * supplied through a set of pointers contained in a generic structure of type
132 * The address of the *eth_dev_ops* structure is stored in the *rte_eth_dev*
133 * structure by the device init function of the Ethernet driver, which is
134 * invoked during the PCI probing phase, as explained earlier.
136 * In other words, each function of the Ethernet API simply retrieves the
137 * *rte_eth_dev* structure associated with the device port identifier and
138 * performs an indirect invocation of the corresponding driver function
139 * supplied in the *eth_dev_ops* structure of the *rte_eth_dev* structure.
141 * For performance reasons, the address of the burst-oriented RX and TX
142 * functions of the Ethernet driver are not contained in the *eth_dev_ops*
143 * structure. Instead, they are directly stored at the beginning of the
144 * *rte_eth_dev* structure to avoid an extra indirect memory access during
147 * RTE ethernet device drivers do not use interrupts for transmitting or
148 * receiving. Instead, Ethernet drivers export Poll-Mode receive and transmit
149 * functions to applications.
150 * Both receive and transmit functions are packet-burst oriented to minimize
151 * their cost per packet through the following optimizations:
153 * - Sharing among multiple packets the incompressible cost of the
154 * invocation of receive/transmit functions.
156 * - Enabling receive/transmit functions to take advantage of burst-oriented
157 * hardware features (L1 cache, prefetch instructions, NIC head/tail
158 * registers) to minimize the number of CPU cycles per packet, for instance,
159 * by avoiding useless read memory accesses to ring descriptors, or by
160 * systematically using arrays of pointers that exactly fit L1 cache line
161 * boundaries and sizes.
163 * The burst-oriented receive function does not provide any error notification,
164 * to avoid the corresponding overhead. As a hint, the upper-level application
165 * might check the status of the device link once being systematically returned
166 * a 0 value by the receive function of the driver for a given number of tries.
177 /* Use this macro to check if LRO API is supported */
178 #define RTE_ETHDEV_HAS_LRO_SUPPORT
181 #include <rte_interrupts.h>
184 #include <rte_devargs.h>
185 #include "rte_ether.h"
186 #include "rte_eth_ctrl.h"
187 #include "rte_dev_info.h"
192 * A structure used to retrieve statistics for an Ethernet port.
193 * Not all statistics fields in struct rte_eth_stats are supported
194 * by any type of network interface card (NIC). If any statistics
195 * field is not supported, its value is 0.
197 struct rte_eth_stats {
198 uint64_t ipackets; /**< Total number of successfully received packets. */
199 uint64_t opackets; /**< Total number of successfully transmitted packets.*/
200 uint64_t ibytes; /**< Total number of successfully received bytes. */
201 uint64_t obytes; /**< Total number of successfully transmitted bytes. */
203 /**< Total of RX packets dropped by the HW,
204 * because there are no available buffer (i.e. RX queues are full).
206 uint64_t ierrors; /**< Total number of erroneous received packets. */
207 uint64_t oerrors; /**< Total number of failed transmitted packets. */
208 uint64_t rx_nombuf; /**< Total number of RX mbuf allocation failures. */
209 uint64_t q_ipackets[RTE_ETHDEV_QUEUE_STAT_CNTRS];
210 /**< Total number of queue RX packets. */
211 uint64_t q_opackets[RTE_ETHDEV_QUEUE_STAT_CNTRS];
212 /**< Total number of queue TX packets. */
213 uint64_t q_ibytes[RTE_ETHDEV_QUEUE_STAT_CNTRS];
214 /**< Total number of successfully received queue bytes. */
215 uint64_t q_obytes[RTE_ETHDEV_QUEUE_STAT_CNTRS];
216 /**< Total number of successfully transmitted queue bytes. */
217 uint64_t q_errors[RTE_ETHDEV_QUEUE_STAT_CNTRS];
218 /**< Total number of queue packets received that are dropped. */
222 * Device supported speeds bitmap flags
224 #define ETH_LINK_SPEED_AUTONEG (0 << 0) /**< Autonegotiate (all speeds) */
225 #define ETH_LINK_SPEED_FIXED (1 << 0) /**< Disable autoneg (fixed speed) */
226 #define ETH_LINK_SPEED_10M_HD (1 << 1) /**< 10 Mbps half-duplex */
227 #define ETH_LINK_SPEED_10M (1 << 2) /**< 10 Mbps full-duplex */
228 #define ETH_LINK_SPEED_100M_HD (1 << 3) /**< 100 Mbps half-duplex */
229 #define ETH_LINK_SPEED_100M (1 << 4) /**< 100 Mbps full-duplex */
230 #define ETH_LINK_SPEED_1G (1 << 5) /**< 1 Gbps */
231 #define ETH_LINK_SPEED_2_5G (1 << 6) /**< 2.5 Gbps */
232 #define ETH_LINK_SPEED_5G (1 << 7) /**< 5 Gbps */
233 #define ETH_LINK_SPEED_10G (1 << 8) /**< 10 Gbps */
234 #define ETH_LINK_SPEED_20G (1 << 9) /**< 20 Gbps */
235 #define ETH_LINK_SPEED_25G (1 << 10) /**< 25 Gbps */
236 #define ETH_LINK_SPEED_40G (1 << 11) /**< 40 Gbps */
237 #define ETH_LINK_SPEED_50G (1 << 12) /**< 50 Gbps */
238 #define ETH_LINK_SPEED_56G (1 << 13) /**< 56 Gbps */
239 #define ETH_LINK_SPEED_100G (1 << 14) /**< 100 Gbps */
242 * Ethernet numeric link speeds in Mbps
244 #define ETH_SPEED_NUM_NONE 0 /**< Not defined */
245 #define ETH_SPEED_NUM_10M 10 /**< 10 Mbps */
246 #define ETH_SPEED_NUM_100M 100 /**< 100 Mbps */
247 #define ETH_SPEED_NUM_1G 1000 /**< 1 Gbps */
248 #define ETH_SPEED_NUM_2_5G 2500 /**< 2.5 Gbps */
249 #define ETH_SPEED_NUM_5G 5000 /**< 5 Gbps */
250 #define ETH_SPEED_NUM_10G 10000 /**< 10 Gbps */
251 #define ETH_SPEED_NUM_20G 20000 /**< 20 Gbps */
252 #define ETH_SPEED_NUM_25G 25000 /**< 25 Gbps */
253 #define ETH_SPEED_NUM_40G 40000 /**< 40 Gbps */
254 #define ETH_SPEED_NUM_50G 50000 /**< 50 Gbps */
255 #define ETH_SPEED_NUM_56G 56000 /**< 56 Gbps */
256 #define ETH_SPEED_NUM_100G 100000 /**< 100 Gbps */
259 * A structure used to retrieve link-level information of an Ethernet port.
262 struct rte_eth_link {
263 uint32_t link_speed; /**< ETH_SPEED_NUM_ */
264 uint16_t link_duplex : 1; /**< ETH_LINK_[HALF/FULL]_DUPLEX */
265 uint16_t link_autoneg : 1; /**< ETH_LINK_SPEED_[AUTONEG/FIXED] */
266 uint16_t link_status : 1; /**< ETH_LINK_[DOWN/UP] */
267 } __attribute__((aligned(8))); /**< aligned for atomic64 read/write */
269 /* Utility constants */
270 #define ETH_LINK_HALF_DUPLEX 0 /**< Half-duplex connection. */
271 #define ETH_LINK_FULL_DUPLEX 1 /**< Full-duplex connection. */
272 #define ETH_LINK_DOWN 0 /**< Link is down. */
273 #define ETH_LINK_UP 1 /**< Link is up. */
274 #define ETH_LINK_FIXED 0 /**< No autonegotiation. */
275 #define ETH_LINK_AUTONEG 1 /**< Autonegotiated. */
278 * A structure used to configure the ring threshold registers of an RX/TX
279 * queue for an Ethernet port.
281 struct rte_eth_thresh {
282 uint8_t pthresh; /**< Ring prefetch threshold. */
283 uint8_t hthresh; /**< Ring host threshold. */
284 uint8_t wthresh; /**< Ring writeback threshold. */
288 * Simple flags are used for rte_eth_conf.rxmode.mq_mode.
290 #define ETH_MQ_RX_RSS_FLAG 0x1
291 #define ETH_MQ_RX_DCB_FLAG 0x2
292 #define ETH_MQ_RX_VMDQ_FLAG 0x4
295 * A set of values to identify what method is to be used to route
296 * packets to multiple queues.
298 enum rte_eth_rx_mq_mode {
299 /** None of DCB,RSS or VMDQ mode */
302 /** For RX side, only RSS is on */
303 ETH_MQ_RX_RSS = ETH_MQ_RX_RSS_FLAG,
304 /** For RX side,only DCB is on. */
305 ETH_MQ_RX_DCB = ETH_MQ_RX_DCB_FLAG,
306 /** Both DCB and RSS enable */
307 ETH_MQ_RX_DCB_RSS = ETH_MQ_RX_RSS_FLAG | ETH_MQ_RX_DCB_FLAG,
309 /** Only VMDQ, no RSS nor DCB */
310 ETH_MQ_RX_VMDQ_ONLY = ETH_MQ_RX_VMDQ_FLAG,
311 /** RSS mode with VMDQ */
312 ETH_MQ_RX_VMDQ_RSS = ETH_MQ_RX_RSS_FLAG | ETH_MQ_RX_VMDQ_FLAG,
313 /** Use VMDQ+DCB to route traffic to queues */
314 ETH_MQ_RX_VMDQ_DCB = ETH_MQ_RX_VMDQ_FLAG | ETH_MQ_RX_DCB_FLAG,
315 /** Enable both VMDQ and DCB in VMDq */
316 ETH_MQ_RX_VMDQ_DCB_RSS = ETH_MQ_RX_RSS_FLAG | ETH_MQ_RX_DCB_FLAG |
321 * for rx mq mode backward compatible
323 #define ETH_RSS ETH_MQ_RX_RSS
324 #define VMDQ_DCB ETH_MQ_RX_VMDQ_DCB
325 #define ETH_DCB_RX ETH_MQ_RX_DCB
328 * A set of values to identify what method is to be used to transmit
329 * packets using multi-TCs.
331 enum rte_eth_tx_mq_mode {
332 ETH_MQ_TX_NONE = 0, /**< It is in neither DCB nor VT mode. */
333 ETH_MQ_TX_DCB, /**< For TX side,only DCB is on. */
334 ETH_MQ_TX_VMDQ_DCB, /**< For TX side,both DCB and VT is on. */
335 ETH_MQ_TX_VMDQ_ONLY, /**< Only VT on, no DCB */
339 * for tx mq mode backward compatible
341 #define ETH_DCB_NONE ETH_MQ_TX_NONE
342 #define ETH_VMDQ_DCB_TX ETH_MQ_TX_VMDQ_DCB
343 #define ETH_DCB_TX ETH_MQ_TX_DCB
346 * A structure used to configure the RX features of an Ethernet port.
348 struct rte_eth_rxmode {
349 /** The multi-queue packet distribution mode to be used, e.g. RSS. */
350 enum rte_eth_rx_mq_mode mq_mode;
351 uint32_t max_rx_pkt_len; /**< Only used if jumbo_frame enabled. */
352 uint16_t split_hdr_size; /**< hdr buf size (header_split enabled).*/
354 uint16_t header_split : 1, /**< Header Split enable. */
355 hw_ip_checksum : 1, /**< IP/UDP/TCP checksum offload enable. */
356 hw_vlan_filter : 1, /**< VLAN filter enable. */
357 hw_vlan_strip : 1, /**< VLAN strip enable. */
358 hw_vlan_extend : 1, /**< Extended VLAN enable. */
359 jumbo_frame : 1, /**< Jumbo Frame Receipt enable. */
360 hw_strip_crc : 1, /**< Enable CRC stripping by hardware. */
361 enable_scatter : 1, /**< Enable scatter packets rx handler */
362 enable_lro : 1; /**< Enable LRO */
366 * VLAN types to indicate if it is for single VLAN, inner VLAN or outer VLAN.
367 * Note that single VLAN is treated the same as inner VLAN.
370 ETH_VLAN_TYPE_UNKNOWN = 0,
371 ETH_VLAN_TYPE_INNER, /**< Inner VLAN. */
372 ETH_VLAN_TYPE_OUTER, /**< Single VLAN, or outer VLAN. */
377 * A structure used to configure the Receive Side Scaling (RSS) feature
378 * of an Ethernet port.
379 * If not NULL, the *rss_key* pointer of the *rss_conf* structure points
380 * to an array holding the RSS key to use for hashing specific header
381 * fields of received packets. The length of this array should be indicated
382 * by *rss_key_len* below. Otherwise, a default random hash key is used by
385 * The *rss_key_len* field of the *rss_conf* structure indicates the length
386 * in bytes of the array pointed by *rss_key*. To be compatible, this length
387 * will be checked in i40e only. Others assume 40 bytes to be used as before.
389 * The *rss_hf* field of the *rss_conf* structure indicates the different
390 * types of IPv4/IPv6 packets to which the RSS hashing must be applied.
391 * Supplying an *rss_hf* equal to zero disables the RSS feature.
393 struct rte_eth_rss_conf {
394 uint8_t *rss_key; /**< If not NULL, 40-byte hash key. */
395 uint8_t rss_key_len; /**< hash key length in bytes. */
396 uint64_t rss_hf; /**< Hash functions to apply - see below. */
400 * The RSS offload types are defined based on flow types which are defined
401 * in rte_eth_ctrl.h. Different NIC hardwares may support different RSS offload
402 * types. The supported flow types or RSS offload types can be queried by
403 * rte_eth_dev_info_get().
405 #define ETH_RSS_IPV4 (1ULL << RTE_ETH_FLOW_IPV4)
406 #define ETH_RSS_FRAG_IPV4 (1ULL << RTE_ETH_FLOW_FRAG_IPV4)
407 #define ETH_RSS_NONFRAG_IPV4_TCP (1ULL << RTE_ETH_FLOW_NONFRAG_IPV4_TCP)
408 #define ETH_RSS_NONFRAG_IPV4_UDP (1ULL << RTE_ETH_FLOW_NONFRAG_IPV4_UDP)
409 #define ETH_RSS_NONFRAG_IPV4_SCTP (1ULL << RTE_ETH_FLOW_NONFRAG_IPV4_SCTP)
410 #define ETH_RSS_NONFRAG_IPV4_OTHER (1ULL << RTE_ETH_FLOW_NONFRAG_IPV4_OTHER)
411 #define ETH_RSS_IPV6 (1ULL << RTE_ETH_FLOW_IPV6)
412 #define ETH_RSS_FRAG_IPV6 (1ULL << RTE_ETH_FLOW_FRAG_IPV6)
413 #define ETH_RSS_NONFRAG_IPV6_TCP (1ULL << RTE_ETH_FLOW_NONFRAG_IPV6_TCP)
414 #define ETH_RSS_NONFRAG_IPV6_UDP (1ULL << RTE_ETH_FLOW_NONFRAG_IPV6_UDP)
415 #define ETH_RSS_NONFRAG_IPV6_SCTP (1ULL << RTE_ETH_FLOW_NONFRAG_IPV6_SCTP)
416 #define ETH_RSS_NONFRAG_IPV6_OTHER (1ULL << RTE_ETH_FLOW_NONFRAG_IPV6_OTHER)
417 #define ETH_RSS_L2_PAYLOAD (1ULL << RTE_ETH_FLOW_L2_PAYLOAD)
418 #define ETH_RSS_IPV6_EX (1ULL << RTE_ETH_FLOW_IPV6_EX)
419 #define ETH_RSS_IPV6_TCP_EX (1ULL << RTE_ETH_FLOW_IPV6_TCP_EX)
420 #define ETH_RSS_IPV6_UDP_EX (1ULL << RTE_ETH_FLOW_IPV6_UDP_EX)
421 #define ETH_RSS_PORT (1ULL << RTE_ETH_FLOW_PORT)
422 #define ETH_RSS_VXLAN (1ULL << RTE_ETH_FLOW_VXLAN)
423 #define ETH_RSS_GENEVE (1ULL << RTE_ETH_FLOW_GENEVE)
424 #define ETH_RSS_NVGRE (1ULL << RTE_ETH_FLOW_NVGRE)
426 #define ETH_RSS_IP ( \
428 ETH_RSS_FRAG_IPV4 | \
429 ETH_RSS_NONFRAG_IPV4_OTHER | \
431 ETH_RSS_FRAG_IPV6 | \
432 ETH_RSS_NONFRAG_IPV6_OTHER | \
435 #define ETH_RSS_UDP ( \
436 ETH_RSS_NONFRAG_IPV4_UDP | \
437 ETH_RSS_NONFRAG_IPV6_UDP | \
440 #define ETH_RSS_TCP ( \
441 ETH_RSS_NONFRAG_IPV4_TCP | \
442 ETH_RSS_NONFRAG_IPV6_TCP | \
445 #define ETH_RSS_SCTP ( \
446 ETH_RSS_NONFRAG_IPV4_SCTP | \
447 ETH_RSS_NONFRAG_IPV6_SCTP)
449 #define ETH_RSS_TUNNEL ( \
455 /**< Mask of valid RSS hash protocols */
456 #define ETH_RSS_PROTO_MASK ( \
458 ETH_RSS_FRAG_IPV4 | \
459 ETH_RSS_NONFRAG_IPV4_TCP | \
460 ETH_RSS_NONFRAG_IPV4_UDP | \
461 ETH_RSS_NONFRAG_IPV4_SCTP | \
462 ETH_RSS_NONFRAG_IPV4_OTHER | \
464 ETH_RSS_FRAG_IPV6 | \
465 ETH_RSS_NONFRAG_IPV6_TCP | \
466 ETH_RSS_NONFRAG_IPV6_UDP | \
467 ETH_RSS_NONFRAG_IPV6_SCTP | \
468 ETH_RSS_NONFRAG_IPV6_OTHER | \
469 ETH_RSS_L2_PAYLOAD | \
471 ETH_RSS_IPV6_TCP_EX | \
472 ETH_RSS_IPV6_UDP_EX | \
479 * Definitions used for redirection table entry size.
480 * Some RSS RETA sizes may not be supported by some drivers, check the
481 * documentation or the description of relevant functions for more details.
483 #define ETH_RSS_RETA_SIZE_64 64
484 #define ETH_RSS_RETA_SIZE_128 128
485 #define ETH_RSS_RETA_SIZE_256 256
486 #define ETH_RSS_RETA_SIZE_512 512
487 #define RTE_RETA_GROUP_SIZE 64
489 /* Definitions used for VMDQ and DCB functionality */
490 #define ETH_VMDQ_MAX_VLAN_FILTERS 64 /**< Maximum nb. of VMDQ vlan filters. */
491 #define ETH_DCB_NUM_USER_PRIORITIES 8 /**< Maximum nb. of DCB priorities. */
492 #define ETH_VMDQ_DCB_NUM_QUEUES 128 /**< Maximum nb. of VMDQ DCB queues. */
493 #define ETH_DCB_NUM_QUEUES 128 /**< Maximum nb. of DCB queues. */
495 /* DCB capability defines */
496 #define ETH_DCB_PG_SUPPORT 0x00000001 /**< Priority Group(ETS) support. */
497 #define ETH_DCB_PFC_SUPPORT 0x00000002 /**< Priority Flow Control support. */
499 /* Definitions used for VLAN Offload functionality */
500 #define ETH_VLAN_STRIP_OFFLOAD 0x0001 /**< VLAN Strip On/Off */
501 #define ETH_VLAN_FILTER_OFFLOAD 0x0002 /**< VLAN Filter On/Off */
502 #define ETH_VLAN_EXTEND_OFFLOAD 0x0004 /**< VLAN Extend On/Off */
504 /* Definitions used for mask VLAN setting */
505 #define ETH_VLAN_STRIP_MASK 0x0001 /**< VLAN Strip setting mask */
506 #define ETH_VLAN_FILTER_MASK 0x0002 /**< VLAN Filter setting mask*/
507 #define ETH_VLAN_EXTEND_MASK 0x0004 /**< VLAN Extend setting mask*/
508 #define ETH_VLAN_ID_MAX 0x0FFF /**< VLAN ID is in lower 12 bits*/
510 /* Definitions used for receive MAC address */
511 #define ETH_NUM_RECEIVE_MAC_ADDR 128 /**< Maximum nb. of receive mac addr. */
513 /* Definitions used for unicast hash */
514 #define ETH_VMDQ_NUM_UC_HASH_ARRAY 128 /**< Maximum nb. of UC hash array. */
516 /* Definitions used for VMDQ pool rx mode setting */
517 #define ETH_VMDQ_ACCEPT_UNTAG 0x0001 /**< accept untagged packets. */
518 #define ETH_VMDQ_ACCEPT_HASH_MC 0x0002 /**< accept packets in multicast table . */
519 #define ETH_VMDQ_ACCEPT_HASH_UC 0x0004 /**< accept packets in unicast table. */
520 #define ETH_VMDQ_ACCEPT_BROADCAST 0x0008 /**< accept broadcast packets. */
521 #define ETH_VMDQ_ACCEPT_MULTICAST 0x0010 /**< multicast promiscuous. */
523 /** Maximum nb. of vlan per mirror rule */
524 #define ETH_MIRROR_MAX_VLANS 64
526 #define ETH_MIRROR_VIRTUAL_POOL_UP 0x01 /**< Virtual Pool uplink Mirroring. */
527 #define ETH_MIRROR_UPLINK_PORT 0x02 /**< Uplink Port Mirroring. */
528 #define ETH_MIRROR_DOWNLINK_PORT 0x04 /**< Downlink Port Mirroring. */
529 #define ETH_MIRROR_VLAN 0x08 /**< VLAN Mirroring. */
530 #define ETH_MIRROR_VIRTUAL_POOL_DOWN 0x10 /**< Virtual Pool downlink Mirroring. */
533 * A structure used to configure VLAN traffic mirror of an Ethernet port.
535 struct rte_eth_vlan_mirror {
536 uint64_t vlan_mask; /**< mask for valid VLAN ID. */
537 /** VLAN ID list for vlan mirroring. */
538 uint16_t vlan_id[ETH_MIRROR_MAX_VLANS];
542 * A structure used to configure traffic mirror of an Ethernet port.
544 struct rte_eth_mirror_conf {
545 uint8_t rule_type; /**< Mirroring rule type */
546 uint8_t dst_pool; /**< Destination pool for this mirror rule. */
547 uint64_t pool_mask; /**< Bitmap of pool for pool mirroring */
548 /** VLAN ID setting for VLAN mirroring. */
549 struct rte_eth_vlan_mirror vlan;
553 * A structure used to configure 64 entries of Redirection Table of the
554 * Receive Side Scaling (RSS) feature of an Ethernet port. To configure
555 * more than 64 entries supported by hardware, an array of this structure
558 struct rte_eth_rss_reta_entry64 {
560 /**< Mask bits indicate which entries need to be updated/queried. */
561 uint16_t reta[RTE_RETA_GROUP_SIZE];
562 /**< Group of 64 redirection table entries. */
566 * This enum indicates the possible number of traffic classes
567 * in DCB configratioins
569 enum rte_eth_nb_tcs {
570 ETH_4_TCS = 4, /**< 4 TCs with DCB. */
571 ETH_8_TCS = 8 /**< 8 TCs with DCB. */
575 * This enum indicates the possible number of queue pools
576 * in VMDQ configurations.
578 enum rte_eth_nb_pools {
579 ETH_8_POOLS = 8, /**< 8 VMDq pools. */
580 ETH_16_POOLS = 16, /**< 16 VMDq pools. */
581 ETH_32_POOLS = 32, /**< 32 VMDq pools. */
582 ETH_64_POOLS = 64 /**< 64 VMDq pools. */
585 /* This structure may be extended in future. */
586 struct rte_eth_dcb_rx_conf {
587 enum rte_eth_nb_tcs nb_tcs; /**< Possible DCB TCs, 4 or 8 TCs */
588 /** Traffic class each UP mapped to. */
589 uint8_t dcb_tc[ETH_DCB_NUM_USER_PRIORITIES];
592 struct rte_eth_vmdq_dcb_tx_conf {
593 enum rte_eth_nb_pools nb_queue_pools; /**< With DCB, 16 or 32 pools. */
594 /** Traffic class each UP mapped to. */
595 uint8_t dcb_tc[ETH_DCB_NUM_USER_PRIORITIES];
598 struct rte_eth_dcb_tx_conf {
599 enum rte_eth_nb_tcs nb_tcs; /**< Possible DCB TCs, 4 or 8 TCs. */
600 /** Traffic class each UP mapped to. */
601 uint8_t dcb_tc[ETH_DCB_NUM_USER_PRIORITIES];
604 struct rte_eth_vmdq_tx_conf {
605 enum rte_eth_nb_pools nb_queue_pools; /**< VMDq mode, 64 pools. */
609 * A structure used to configure the VMDQ+DCB feature
610 * of an Ethernet port.
612 * Using this feature, packets are routed to a pool of queues, based
613 * on the vlan id in the vlan tag, and then to a specific queue within
614 * that pool, using the user priority vlan tag field.
616 * A default pool may be used, if desired, to route all traffic which
617 * does not match the vlan filter rules.
619 struct rte_eth_vmdq_dcb_conf {
620 enum rte_eth_nb_pools nb_queue_pools; /**< With DCB, 16 or 32 pools */
621 uint8_t enable_default_pool; /**< If non-zero, use a default pool */
622 uint8_t default_pool; /**< The default pool, if applicable */
623 uint8_t nb_pool_maps; /**< We can have up to 64 filters/mappings */
625 uint16_t vlan_id; /**< The vlan id of the received frame */
626 uint64_t pools; /**< Bitmask of pools for packet rx */
627 } pool_map[ETH_VMDQ_MAX_VLAN_FILTERS]; /**< VMDq vlan pool maps. */
628 uint8_t dcb_tc[ETH_DCB_NUM_USER_PRIORITIES];
629 /**< Selects a queue in a pool */
632 struct rte_eth_vmdq_rx_conf {
633 enum rte_eth_nb_pools nb_queue_pools; /**< VMDq only mode, 8 or 64 pools */
634 uint8_t enable_default_pool; /**< If non-zero, use a default pool */
635 uint8_t default_pool; /**< The default pool, if applicable */
636 uint8_t enable_loop_back; /**< Enable VT loop back */
637 uint8_t nb_pool_maps; /**< We can have up to 64 filters/mappings */
638 uint32_t rx_mode; /**< Flags from ETH_VMDQ_ACCEPT_* */
640 uint16_t vlan_id; /**< The vlan id of the received frame */
641 uint64_t pools; /**< Bitmask of pools for packet rx */
642 } pool_map[ETH_VMDQ_MAX_VLAN_FILTERS]; /**< VMDq vlan pool maps. */
646 * A structure used to configure the TX features of an Ethernet port.
648 struct rte_eth_txmode {
649 enum rte_eth_tx_mq_mode mq_mode; /**< TX multi-queues mode. */
651 /* For i40e specifically */
654 uint8_t hw_vlan_reject_tagged : 1,
655 /**< If set, reject sending out tagged pkts */
656 hw_vlan_reject_untagged : 1,
657 /**< If set, reject sending out untagged pkts */
658 hw_vlan_insert_pvid : 1;
659 /**< If set, enable port based VLAN insertion */
663 * A structure used to configure an RX ring of an Ethernet port.
665 struct rte_eth_rxconf {
666 struct rte_eth_thresh rx_thresh; /**< RX ring threshold registers. */
667 uint16_t rx_free_thresh; /**< Drives the freeing of RX descriptors. */
668 uint8_t rx_drop_en; /**< Drop packets if no descriptors are available. */
669 uint8_t rx_deferred_start; /**< Do not start queue with rte_eth_dev_start(). */
672 #define ETH_TXQ_FLAGS_NOMULTSEGS 0x0001 /**< nb_segs=1 for all mbufs */
673 #define ETH_TXQ_FLAGS_NOREFCOUNT 0x0002 /**< refcnt can be ignored */
674 #define ETH_TXQ_FLAGS_NOMULTMEMP 0x0004 /**< all bufs come from same mempool */
675 #define ETH_TXQ_FLAGS_NOVLANOFFL 0x0100 /**< disable VLAN offload */
676 #define ETH_TXQ_FLAGS_NOXSUMSCTP 0x0200 /**< disable SCTP checksum offload */
677 #define ETH_TXQ_FLAGS_NOXSUMUDP 0x0400 /**< disable UDP checksum offload */
678 #define ETH_TXQ_FLAGS_NOXSUMTCP 0x0800 /**< disable TCP checksum offload */
679 #define ETH_TXQ_FLAGS_NOOFFLOADS \
680 (ETH_TXQ_FLAGS_NOVLANOFFL | ETH_TXQ_FLAGS_NOXSUMSCTP | \
681 ETH_TXQ_FLAGS_NOXSUMUDP | ETH_TXQ_FLAGS_NOXSUMTCP)
682 #define ETH_TXQ_FLAGS_NOXSUMS \
683 (ETH_TXQ_FLAGS_NOXSUMSCTP | ETH_TXQ_FLAGS_NOXSUMUDP | \
684 ETH_TXQ_FLAGS_NOXSUMTCP)
686 * A structure used to configure a TX ring of an Ethernet port.
688 struct rte_eth_txconf {
689 struct rte_eth_thresh tx_thresh; /**< TX ring threshold registers. */
690 uint16_t tx_rs_thresh; /**< Drives the setting of RS bit on TXDs. */
691 uint16_t tx_free_thresh; /**< Start freeing TX buffers if there are
692 less free descriptors than this value. */
694 uint32_t txq_flags; /**< Set flags for the Tx queue */
695 uint8_t tx_deferred_start; /**< Do not start queue with rte_eth_dev_start(). */
699 * A structure contains information about HW descriptor ring limitations.
701 struct rte_eth_desc_lim {
702 uint16_t nb_max; /**< Max allowed number of descriptors. */
703 uint16_t nb_min; /**< Min allowed number of descriptors. */
704 uint16_t nb_align; /**< Number of descriptors should be aligned to. */
708 * This enum indicates the flow control mode
710 enum rte_eth_fc_mode {
711 RTE_FC_NONE = 0, /**< Disable flow control. */
712 RTE_FC_RX_PAUSE, /**< RX pause frame, enable flowctrl on TX side. */
713 RTE_FC_TX_PAUSE, /**< TX pause frame, enable flowctrl on RX side. */
714 RTE_FC_FULL /**< Enable flow control on both side. */
718 * A structure used to configure Ethernet flow control parameter.
719 * These parameters will be configured into the register of the NIC.
720 * Please refer to the corresponding data sheet for proper value.
722 struct rte_eth_fc_conf {
723 uint32_t high_water; /**< High threshold value to trigger XOFF */
724 uint32_t low_water; /**< Low threshold value to trigger XON */
725 uint16_t pause_time; /**< Pause quota in the Pause frame */
726 uint16_t send_xon; /**< Is XON frame need be sent */
727 enum rte_eth_fc_mode mode; /**< Link flow control mode */
728 uint8_t mac_ctrl_frame_fwd; /**< Forward MAC control frames */
729 uint8_t autoneg; /**< Use Pause autoneg */
733 * A structure used to configure Ethernet priority flow control parameter.
734 * These parameters will be configured into the register of the NIC.
735 * Please refer to the corresponding data sheet for proper value.
737 struct rte_eth_pfc_conf {
738 struct rte_eth_fc_conf fc; /**< General flow control parameter. */
739 uint8_t priority; /**< VLAN User Priority. */
743 * Memory space that can be configured to store Flow Director filters
744 * in the board memory.
746 enum rte_fdir_pballoc_type {
747 RTE_FDIR_PBALLOC_64K = 0, /**< 64k. */
748 RTE_FDIR_PBALLOC_128K, /**< 128k. */
749 RTE_FDIR_PBALLOC_256K, /**< 256k. */
753 * Select report mode of FDIR hash information in RX descriptors.
755 enum rte_fdir_status_mode {
756 RTE_FDIR_NO_REPORT_STATUS = 0, /**< Never report FDIR hash. */
757 RTE_FDIR_REPORT_STATUS, /**< Only report FDIR hash for matching pkts. */
758 RTE_FDIR_REPORT_STATUS_ALWAYS, /**< Always report FDIR hash. */
762 * A structure used to configure the Flow Director (FDIR) feature
763 * of an Ethernet port.
765 * If mode is RTE_FDIR_DISABLE, the pballoc value is ignored.
767 struct rte_fdir_conf {
768 enum rte_fdir_mode mode; /**< Flow Director mode. */
769 enum rte_fdir_pballoc_type pballoc; /**< Space for FDIR filters. */
770 enum rte_fdir_status_mode status; /**< How to report FDIR hash. */
771 /** RX queue of packets matching a "drop" filter in perfect mode. */
773 struct rte_eth_fdir_masks mask;
774 struct rte_eth_fdir_flex_conf flex_conf;
775 /**< Flex payload configuration. */
779 * UDP tunneling configuration.
780 * Used to config the UDP port for a type of tunnel.
781 * NICs need the UDP port to identify the tunnel type.
782 * Normally a type of tunnel has a default UDP port, this structure can be used
783 * in case if the users want to change or support more UDP port.
785 struct rte_eth_udp_tunnel {
786 uint16_t udp_port; /**< UDP port used for the tunnel. */
787 uint8_t prot_type; /**< Tunnel type. Defined in rte_eth_tunnel_type. */
791 * A structure used to enable/disable specific device interrupts.
793 struct rte_intr_conf {
794 /** enable/disable lsc interrupt. 0 (default) - disable, 1 enable */
796 /** enable/disable rxq interrupt. 0 (default) - disable, 1 enable */
801 * A structure used to configure an Ethernet port.
802 * Depending upon the RX multi-queue mode, extra advanced
803 * configuration settings may be needed.
805 struct rte_eth_conf {
806 uint32_t link_speeds; /**< bitmap of ETH_LINK_SPEED_XXX of speeds to be
807 used. ETH_LINK_SPEED_FIXED disables link
808 autonegotiation, and a unique speed shall be
809 set. Otherwise, the bitmap defines the set of
810 speeds to be advertised. If the special value
811 ETH_LINK_SPEED_AUTONEG (0) is used, all speeds
812 supported are advertised. */
813 struct rte_eth_rxmode rxmode; /**< Port RX configuration. */
814 struct rte_eth_txmode txmode; /**< Port TX configuration. */
815 uint32_t lpbk_mode; /**< Loopback operation mode. By default the value
816 is 0, meaning the loopback mode is disabled.
817 Read the datasheet of given ethernet controller
818 for details. The possible values of this field
819 are defined in implementation of each driver. */
821 struct rte_eth_rss_conf rss_conf; /**< Port RSS configuration */
822 struct rte_eth_vmdq_dcb_conf vmdq_dcb_conf;
823 /**< Port vmdq+dcb configuration. */
824 struct rte_eth_dcb_rx_conf dcb_rx_conf;
825 /**< Port dcb RX configuration. */
826 struct rte_eth_vmdq_rx_conf vmdq_rx_conf;
827 /**< Port vmdq RX configuration. */
828 } rx_adv_conf; /**< Port RX filtering configuration (union). */
830 struct rte_eth_vmdq_dcb_tx_conf vmdq_dcb_tx_conf;
831 /**< Port vmdq+dcb TX configuration. */
832 struct rte_eth_dcb_tx_conf dcb_tx_conf;
833 /**< Port dcb TX configuration. */
834 struct rte_eth_vmdq_tx_conf vmdq_tx_conf;
835 /**< Port vmdq TX configuration. */
836 } tx_adv_conf; /**< Port TX DCB configuration (union). */
837 /** Currently,Priority Flow Control(PFC) are supported,if DCB with PFC
838 is needed,and the variable must be set ETH_DCB_PFC_SUPPORT. */
839 uint32_t dcb_capability_en;
840 struct rte_fdir_conf fdir_conf; /**< FDIR configuration. */
841 struct rte_intr_conf intr_conf; /**< Interrupt mode configuration. */
845 * A structure used to retrieve the contextual information of
846 * an Ethernet device, such as the controlling driver of the device,
847 * its PCI context, etc...
851 * RX offload capabilities of a device.
853 #define DEV_RX_OFFLOAD_VLAN_STRIP 0x00000001
854 #define DEV_RX_OFFLOAD_IPV4_CKSUM 0x00000002
855 #define DEV_RX_OFFLOAD_UDP_CKSUM 0x00000004
856 #define DEV_RX_OFFLOAD_TCP_CKSUM 0x00000008
857 #define DEV_RX_OFFLOAD_TCP_LRO 0x00000010
858 #define DEV_RX_OFFLOAD_QINQ_STRIP 0x00000020
859 #define DEV_RX_OFFLOAD_OUTER_IPV4_CKSUM 0x00000040
862 * TX offload capabilities of a device.
864 #define DEV_TX_OFFLOAD_VLAN_INSERT 0x00000001
865 #define DEV_TX_OFFLOAD_IPV4_CKSUM 0x00000002
866 #define DEV_TX_OFFLOAD_UDP_CKSUM 0x00000004
867 #define DEV_TX_OFFLOAD_TCP_CKSUM 0x00000008
868 #define DEV_TX_OFFLOAD_SCTP_CKSUM 0x00000010
869 #define DEV_TX_OFFLOAD_TCP_TSO 0x00000020
870 #define DEV_TX_OFFLOAD_UDP_TSO 0x00000040
871 #define DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM 0x00000080 /**< Used for tunneling packet. */
872 #define DEV_TX_OFFLOAD_QINQ_INSERT 0x00000100
873 #define DEV_TX_OFFLOAD_VXLAN_TNL_TSO 0x00000200 /**< Used for tunneling packet. */
874 #define DEV_TX_OFFLOAD_GRE_TNL_TSO 0x00000400 /**< Used for tunneling packet. */
875 #define DEV_TX_OFFLOAD_IPIP_TNL_TSO 0x00000800 /**< Used for tunneling packet. */
876 #define DEV_TX_OFFLOAD_GENEVE_TNL_TSO 0x00001000 /**< Used for tunneling packet. */
879 * Ethernet device information
881 struct rte_eth_dev_info {
882 struct rte_pci_device *pci_dev; /**< Device PCI information. */
883 const char *driver_name; /**< Device Driver name. */
884 unsigned int if_index; /**< Index to bound host interface, or 0 if none.
885 Use if_indextoname() to translate into an interface name. */
886 uint32_t min_rx_bufsize; /**< Minimum size of RX buffer. */
887 uint32_t max_rx_pktlen; /**< Maximum configurable length of RX pkt. */
888 uint16_t max_rx_queues; /**< Maximum number of RX queues. */
889 uint16_t max_tx_queues; /**< Maximum number of TX queues. */
890 uint32_t max_mac_addrs; /**< Maximum number of MAC addresses. */
891 uint32_t max_hash_mac_addrs;
892 /** Maximum number of hash MAC addresses for MTA and UTA. */
893 uint16_t max_vfs; /**< Maximum number of VFs. */
894 uint16_t max_vmdq_pools; /**< Maximum number of VMDq pools. */
895 uint32_t rx_offload_capa; /**< Device RX offload capabilities. */
896 uint32_t tx_offload_capa; /**< Device TX offload capabilities. */
898 /**< Device redirection table size, the total number of entries. */
899 uint8_t hash_key_size; /**< Hash key size in bytes */
900 /** Bit mask of RSS offloads, the bit offset also means flow type */
901 uint64_t flow_type_rss_offloads;
902 struct rte_eth_rxconf default_rxconf; /**< Default RX configuration */
903 struct rte_eth_txconf default_txconf; /**< Default TX configuration */
904 uint16_t vmdq_queue_base; /**< First queue ID for VMDQ pools. */
905 uint16_t vmdq_queue_num; /**< Queue number for VMDQ pools. */
906 uint16_t vmdq_pool_base; /**< First ID of VMDQ pools. */
907 struct rte_eth_desc_lim rx_desc_lim; /**< RX descriptors limits */
908 struct rte_eth_desc_lim tx_desc_lim; /**< TX descriptors limits */
909 uint32_t speed_capa; /**< Supported speeds bitmap (ETH_LINK_SPEED_). */
910 /** Configured number of rx/tx queues */
911 uint16_t nb_rx_queues; /**< Number of RX queues. */
912 uint16_t nb_tx_queues; /**< Number of TX queues. */
916 * Ethernet device RX queue information structure.
917 * Used to retieve information about configured queue.
919 struct rte_eth_rxq_info {
920 struct rte_mempool *mp; /**< mempool used by that queue. */
921 struct rte_eth_rxconf conf; /**< queue config parameters. */
922 uint8_t scattered_rx; /**< scattered packets RX supported. */
923 uint16_t nb_desc; /**< configured number of RXDs. */
924 } __rte_cache_min_aligned;
927 * Ethernet device TX queue information structure.
928 * Used to retieve information about configured queue.
930 struct rte_eth_txq_info {
931 struct rte_eth_txconf conf; /**< queue config parameters. */
932 uint16_t nb_desc; /**< configured number of TXDs. */
933 } __rte_cache_min_aligned;
935 /** Maximum name length for extended statistics counters */
936 #define RTE_ETH_XSTATS_NAME_SIZE 64
939 * An Ethernet device extended statistic structure
941 * This structure is used by ethdev->eth_xstats_get() to provide
942 * statistics that are not provided in the generic rte_eth_stats
945 struct rte_eth_xstat {
951 * A name-key lookup element for extended statistics.
953 * This structure is used to map between names and ID numbers
954 * for extended ethernet statistics.
956 struct rte_eth_xstat_name {
957 char name[RTE_ETH_XSTATS_NAME_SIZE];
960 #define ETH_DCB_NUM_TCS 8
961 #define ETH_MAX_VMDQ_POOL 64
964 * A structure used to get the information of queue and
965 * TC mapping on both TX and RX paths.
967 struct rte_eth_dcb_tc_queue_mapping {
968 /** rx queues assigned to tc per Pool */
972 } tc_rxq[ETH_MAX_VMDQ_POOL][ETH_DCB_NUM_TCS];
973 /** rx queues assigned to tc per Pool */
977 } tc_txq[ETH_MAX_VMDQ_POOL][ETH_DCB_NUM_TCS];
981 * A structure used to get the information of DCB.
982 * It includes TC UP mapping and queue TC mapping.
984 struct rte_eth_dcb_info {
985 uint8_t nb_tcs; /**< number of TCs */
986 uint8_t prio_tc[ETH_DCB_NUM_USER_PRIORITIES]; /**< Priority to tc */
987 uint8_t tc_bws[ETH_DCB_NUM_TCS]; /**< TX BW percentage for each TC */
988 /** rx queues assigned to tc */
989 struct rte_eth_dcb_tc_queue_mapping tc_queue;
995 #define RTE_ETH_QUEUE_STATE_STOPPED 0
996 #define RTE_ETH_QUEUE_STATE_STARTED 1
1000 struct rte_eth_dev_callback;
1001 /** @internal Structure to keep track of registered callbacks */
1002 TAILQ_HEAD(rte_eth_dev_cb_list, rte_eth_dev_callback);
1005 #ifdef RTE_LIBRTE_ETHDEV_DEBUG
1006 #define RTE_PMD_DEBUG_TRACE(...) \
1007 rte_pmd_debug_trace(__func__, __VA_ARGS__)
1009 #define RTE_PMD_DEBUG_TRACE(...)
1013 /* Macros to check for valid port */
1014 #define RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, retval) do { \
1015 if (!rte_eth_dev_is_valid_port(port_id)) { \
1016 RTE_PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id); \
1021 #define RTE_ETH_VALID_PORTID_OR_RET(port_id) do { \
1022 if (!rte_eth_dev_is_valid_port(port_id)) { \
1023 RTE_PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id); \
1029 * l2 tunnel configuration.
1032 /**< l2 tunnel enable mask */
1033 #define ETH_L2_TUNNEL_ENABLE_MASK 0x00000001
1034 /**< l2 tunnel insertion mask */
1035 #define ETH_L2_TUNNEL_INSERTION_MASK 0x00000002
1036 /**< l2 tunnel stripping mask */
1037 #define ETH_L2_TUNNEL_STRIPPING_MASK 0x00000004
1038 /**< l2 tunnel forwarding mask */
1039 #define ETH_L2_TUNNEL_FORWARDING_MASK 0x00000008
1042 * Definitions of all functions exported by an Ethernet driver through the
1043 * the generic structure of type *eth_dev_ops* supplied in the *rte_eth_dev*
1044 * structure associated with an Ethernet device.
1047 typedef int (*eth_dev_configure_t)(struct rte_eth_dev *dev);
1048 /**< @internal Ethernet device configuration. */
1050 typedef int (*eth_dev_start_t)(struct rte_eth_dev *dev);
1051 /**< @internal Function used to start a configured Ethernet device. */
1053 typedef void (*eth_dev_stop_t)(struct rte_eth_dev *dev);
1054 /**< @internal Function used to stop a configured Ethernet device. */
1056 typedef int (*eth_dev_set_link_up_t)(struct rte_eth_dev *dev);
1057 /**< @internal Function used to link up a configured Ethernet device. */
1059 typedef int (*eth_dev_set_link_down_t)(struct rte_eth_dev *dev);
1060 /**< @internal Function used to link down a configured Ethernet device. */
1062 typedef void (*eth_dev_close_t)(struct rte_eth_dev *dev);
1063 /**< @internal Function used to close a configured Ethernet device. */
1065 typedef void (*eth_promiscuous_enable_t)(struct rte_eth_dev *dev);
1066 /**< @internal Function used to enable the RX promiscuous mode of an Ethernet device. */
1068 typedef void (*eth_promiscuous_disable_t)(struct rte_eth_dev *dev);
1069 /**< @internal Function used to disable the RX promiscuous mode of an Ethernet device. */
1071 typedef void (*eth_allmulticast_enable_t)(struct rte_eth_dev *dev);
1072 /**< @internal Enable the receipt of all multicast packets by an Ethernet device. */
1074 typedef void (*eth_allmulticast_disable_t)(struct rte_eth_dev *dev);
1075 /**< @internal Disable the receipt of all multicast packets by an Ethernet device. */
1077 typedef int (*eth_link_update_t)(struct rte_eth_dev *dev,
1078 int wait_to_complete);
1079 /**< @internal Get link speed, duplex mode and state (up/down) of an Ethernet device. */
1081 typedef void (*eth_stats_get_t)(struct rte_eth_dev *dev,
1082 struct rte_eth_stats *igb_stats);
1083 /**< @internal Get global I/O statistics of an Ethernet device. */
1085 typedef void (*eth_stats_reset_t)(struct rte_eth_dev *dev);
1086 /**< @internal Reset global I/O statistics of an Ethernet device to 0. */
1088 typedef int (*eth_xstats_get_t)(struct rte_eth_dev *dev,
1089 struct rte_eth_xstat *stats, unsigned n);
1090 /**< @internal Get extended stats of an Ethernet device. */
1092 typedef void (*eth_xstats_reset_t)(struct rte_eth_dev *dev);
1093 /**< @internal Reset extended stats of an Ethernet device. */
1095 typedef int (*eth_xstats_get_names_t)(struct rte_eth_dev *dev,
1096 struct rte_eth_xstat_name *xstats_names, unsigned size);
1097 /**< @internal Get names of extended stats of an Ethernet device. */
1099 typedef int (*eth_queue_stats_mapping_set_t)(struct rte_eth_dev *dev,
1103 /**< @internal Set a queue statistics mapping for a tx/rx queue of an Ethernet device. */
1105 typedef void (*eth_dev_infos_get_t)(struct rte_eth_dev *dev,
1106 struct rte_eth_dev_info *dev_info);
1107 /**< @internal Get specific informations of an Ethernet device. */
1109 typedef const uint32_t *(*eth_dev_supported_ptypes_get_t)(struct rte_eth_dev *dev);
1110 /**< @internal Get supported ptypes of an Ethernet device. */
1112 typedef int (*eth_queue_start_t)(struct rte_eth_dev *dev,
1114 /**< @internal Start rx and tx of a queue of an Ethernet device. */
1116 typedef int (*eth_queue_stop_t)(struct rte_eth_dev *dev,
1118 /**< @internal Stop rx and tx of a queue of an Ethernet device. */
1120 typedef int (*eth_rx_queue_setup_t)(struct rte_eth_dev *dev,
1121 uint16_t rx_queue_id,
1122 uint16_t nb_rx_desc,
1123 unsigned int socket_id,
1124 const struct rte_eth_rxconf *rx_conf,
1125 struct rte_mempool *mb_pool);
1126 /**< @internal Set up a receive queue of an Ethernet device. */
1128 typedef int (*eth_tx_queue_setup_t)(struct rte_eth_dev *dev,
1129 uint16_t tx_queue_id,
1130 uint16_t nb_tx_desc,
1131 unsigned int socket_id,
1132 const struct rte_eth_txconf *tx_conf);
1133 /**< @internal Setup a transmit queue of an Ethernet device. */
1135 typedef int (*eth_rx_enable_intr_t)(struct rte_eth_dev *dev,
1136 uint16_t rx_queue_id);
1137 /**< @internal Enable interrupt of a receive queue of an Ethernet device. */
1139 typedef int (*eth_rx_disable_intr_t)(struct rte_eth_dev *dev,
1140 uint16_t rx_queue_id);
1141 /**< @internal Disable interrupt of a receive queue of an Ethernet device. */
1143 typedef void (*eth_queue_release_t)(void *queue);
1144 /**< @internal Release memory resources allocated by given RX/TX queue. */
1146 typedef uint32_t (*eth_rx_queue_count_t)(struct rte_eth_dev *dev,
1147 uint16_t rx_queue_id);
1148 /**< @internal Get number of available descriptors on a receive queue of an Ethernet device. */
1150 typedef int (*eth_rx_descriptor_done_t)(void *rxq, uint16_t offset);
1151 /**< @internal Check DD bit of specific RX descriptor */
1153 typedef void (*eth_rxq_info_get_t)(struct rte_eth_dev *dev,
1154 uint16_t rx_queue_id, struct rte_eth_rxq_info *qinfo);
1156 typedef void (*eth_txq_info_get_t)(struct rte_eth_dev *dev,
1157 uint16_t tx_queue_id, struct rte_eth_txq_info *qinfo);
1159 typedef int (*mtu_set_t)(struct rte_eth_dev *dev, uint16_t mtu);
1160 /**< @internal Set MTU. */
1162 typedef int (*vlan_filter_set_t)(struct rte_eth_dev *dev,
1165 /**< @internal filtering of a VLAN Tag Identifier by an Ethernet device. */
1167 typedef int (*vlan_tpid_set_t)(struct rte_eth_dev *dev,
1168 enum rte_vlan_type type, uint16_t tpid);
1169 /**< @internal set the outer/inner VLAN-TPID by an Ethernet device. */
1171 typedef void (*vlan_offload_set_t)(struct rte_eth_dev *dev, int mask);
1172 /**< @internal set VLAN offload function by an Ethernet device. */
1174 typedef int (*vlan_pvid_set_t)(struct rte_eth_dev *dev,
1177 /**< @internal set port based TX VLAN insertion by an Ethernet device. */
1179 typedef void (*vlan_strip_queue_set_t)(struct rte_eth_dev *dev,
1180 uint16_t rx_queue_id,
1182 /**< @internal VLAN stripping enable/disable by an queue of Ethernet device. */
1184 typedef uint16_t (*eth_rx_burst_t)(void *rxq,
1185 struct rte_mbuf **rx_pkts,
1187 /**< @internal Retrieve input packets from a receive queue of an Ethernet device. */
1189 typedef uint16_t (*eth_tx_burst_t)(void *txq,
1190 struct rte_mbuf **tx_pkts,
1192 /**< @internal Send output packets on a transmit queue of an Ethernet device. */
1194 typedef int (*flow_ctrl_get_t)(struct rte_eth_dev *dev,
1195 struct rte_eth_fc_conf *fc_conf);
1196 /**< @internal Get current flow control parameter on an Ethernet device */
1198 typedef int (*flow_ctrl_set_t)(struct rte_eth_dev *dev,
1199 struct rte_eth_fc_conf *fc_conf);
1200 /**< @internal Setup flow control parameter on an Ethernet device */
1202 typedef int (*priority_flow_ctrl_set_t)(struct rte_eth_dev *dev,
1203 struct rte_eth_pfc_conf *pfc_conf);
1204 /**< @internal Setup priority flow control parameter on an Ethernet device */
1206 typedef int (*reta_update_t)(struct rte_eth_dev *dev,
1207 struct rte_eth_rss_reta_entry64 *reta_conf,
1208 uint16_t reta_size);
1209 /**< @internal Update RSS redirection table on an Ethernet device */
1211 typedef int (*reta_query_t)(struct rte_eth_dev *dev,
1212 struct rte_eth_rss_reta_entry64 *reta_conf,
1213 uint16_t reta_size);
1214 /**< @internal Query RSS redirection table on an Ethernet device */
1216 typedef int (*rss_hash_update_t)(struct rte_eth_dev *dev,
1217 struct rte_eth_rss_conf *rss_conf);
1218 /**< @internal Update RSS hash configuration of an Ethernet device */
1220 typedef int (*rss_hash_conf_get_t)(struct rte_eth_dev *dev,
1221 struct rte_eth_rss_conf *rss_conf);
1222 /**< @internal Get current RSS hash configuration of an Ethernet device */
1224 typedef int (*eth_dev_led_on_t)(struct rte_eth_dev *dev);
1225 /**< @internal Turn on SW controllable LED on an Ethernet device */
1227 typedef int (*eth_dev_led_off_t)(struct rte_eth_dev *dev);
1228 /**< @internal Turn off SW controllable LED on an Ethernet device */
1230 typedef void (*eth_mac_addr_remove_t)(struct rte_eth_dev *dev, uint32_t index);
1231 /**< @internal Remove MAC address from receive address register */
1233 typedef void (*eth_mac_addr_add_t)(struct rte_eth_dev *dev,
1234 struct ether_addr *mac_addr,
1237 /**< @internal Set a MAC address into Receive Address Address Register */
1239 typedef void (*eth_mac_addr_set_t)(struct rte_eth_dev *dev,
1240 struct ether_addr *mac_addr);
1241 /**< @internal Set a MAC address into Receive Address Address Register */
1243 typedef int (*eth_uc_hash_table_set_t)(struct rte_eth_dev *dev,
1244 struct ether_addr *mac_addr,
1246 /**< @internal Set a Unicast Hash bitmap */
1248 typedef int (*eth_uc_all_hash_table_set_t)(struct rte_eth_dev *dev,
1250 /**< @internal Set all Unicast Hash bitmap */
1252 typedef int (*eth_set_vf_rx_mode_t)(struct rte_eth_dev *dev,
1256 /**< @internal Set a VF receive mode */
1258 typedef int (*eth_set_vf_rx_t)(struct rte_eth_dev *dev,
1261 /**< @internal Set a VF receive mode */
1263 typedef int (*eth_set_vf_tx_t)(struct rte_eth_dev *dev,
1266 /**< @internal Enable or disable a VF transmit */
1268 typedef int (*eth_set_vf_vlan_filter_t)(struct rte_eth_dev *dev,
1272 /**< @internal Set VF VLAN pool filter */
1274 typedef int (*eth_set_queue_rate_limit_t)(struct rte_eth_dev *dev,
1277 /**< @internal Set queue TX rate */
1279 typedef int (*eth_set_vf_rate_limit_t)(struct rte_eth_dev *dev,
1283 /**< @internal Set VF TX rate */
1285 typedef int (*eth_mirror_rule_set_t)(struct rte_eth_dev *dev,
1286 struct rte_eth_mirror_conf *mirror_conf,
1289 /**< @internal Add a traffic mirroring rule on an Ethernet device */
1291 typedef int (*eth_mirror_rule_reset_t)(struct rte_eth_dev *dev,
1293 /**< @internal Remove a traffic mirroring rule on an Ethernet device */
1295 typedef int (*eth_udp_tunnel_port_add_t)(struct rte_eth_dev *dev,
1296 struct rte_eth_udp_tunnel *tunnel_udp);
1297 /**< @internal Add tunneling UDP port */
1299 typedef int (*eth_udp_tunnel_port_del_t)(struct rte_eth_dev *dev,
1300 struct rte_eth_udp_tunnel *tunnel_udp);
1301 /**< @internal Delete tunneling UDP port */
1303 typedef int (*eth_set_mc_addr_list_t)(struct rte_eth_dev *dev,
1304 struct ether_addr *mc_addr_set,
1305 uint32_t nb_mc_addr);
1306 /**< @internal set the list of multicast addresses on an Ethernet device */
1308 typedef int (*eth_timesync_enable_t)(struct rte_eth_dev *dev);
1309 /**< @internal Function used to enable IEEE1588/802.1AS timestamping. */
1311 typedef int (*eth_timesync_disable_t)(struct rte_eth_dev *dev);
1312 /**< @internal Function used to disable IEEE1588/802.1AS timestamping. */
1314 typedef int (*eth_timesync_read_rx_timestamp_t)(struct rte_eth_dev *dev,
1315 struct timespec *timestamp,
1317 /**< @internal Function used to read an RX IEEE1588/802.1AS timestamp. */
1319 typedef int (*eth_timesync_read_tx_timestamp_t)(struct rte_eth_dev *dev,
1320 struct timespec *timestamp);
1321 /**< @internal Function used to read a TX IEEE1588/802.1AS timestamp. */
1323 typedef int (*eth_timesync_adjust_time)(struct rte_eth_dev *dev, int64_t);
1324 /**< @internal Function used to adjust the device clock */
1326 typedef int (*eth_timesync_read_time)(struct rte_eth_dev *dev,
1327 struct timespec *timestamp);
1328 /**< @internal Function used to get time from the device clock. */
1330 typedef int (*eth_timesync_write_time)(struct rte_eth_dev *dev,
1331 const struct timespec *timestamp);
1332 /**< @internal Function used to get time from the device clock */
1334 typedef int (*eth_get_reg_t)(struct rte_eth_dev *dev,
1335 struct rte_dev_reg_info *info);
1336 /**< @internal Retrieve registers */
1338 typedef int (*eth_get_eeprom_length_t)(struct rte_eth_dev *dev);
1339 /**< @internal Retrieve eeprom size */
1341 typedef int (*eth_get_eeprom_t)(struct rte_eth_dev *dev,
1342 struct rte_dev_eeprom_info *info);
1343 /**< @internal Retrieve eeprom data */
1345 typedef int (*eth_set_eeprom_t)(struct rte_eth_dev *dev,
1346 struct rte_dev_eeprom_info *info);
1347 /**< @internal Program eeprom data */
1349 typedef int (*eth_l2_tunnel_eth_type_conf_t)
1350 (struct rte_eth_dev *dev, struct rte_eth_l2_tunnel_conf *l2_tunnel);
1351 /**< @internal config l2 tunnel ether type */
1353 typedef int (*eth_l2_tunnel_offload_set_t)
1354 (struct rte_eth_dev *dev,
1355 struct rte_eth_l2_tunnel_conf *l2_tunnel,
1358 /**< @internal enable/disable the l2 tunnel offload functions */
1360 #ifdef RTE_NIC_BYPASS
1363 RTE_BYPASS_MODE_NONE,
1364 RTE_BYPASS_MODE_NORMAL,
1365 RTE_BYPASS_MODE_BYPASS,
1366 RTE_BYPASS_MODE_ISOLATE,
1367 RTE_BYPASS_MODE_NUM,
1370 #define RTE_BYPASS_MODE_VALID(x) \
1371 ((x) > RTE_BYPASS_MODE_NONE && (x) < RTE_BYPASS_MODE_NUM)
1374 RTE_BYPASS_EVENT_NONE,
1375 RTE_BYPASS_EVENT_START,
1376 RTE_BYPASS_EVENT_OS_ON = RTE_BYPASS_EVENT_START,
1377 RTE_BYPASS_EVENT_POWER_ON,
1378 RTE_BYPASS_EVENT_OS_OFF,
1379 RTE_BYPASS_EVENT_POWER_OFF,
1380 RTE_BYPASS_EVENT_TIMEOUT,
1381 RTE_BYPASS_EVENT_NUM
1384 #define RTE_BYPASS_EVENT_VALID(x) \
1385 ((x) > RTE_BYPASS_EVENT_NONE && (x) < RTE_BYPASS_MODE_NUM)
1388 RTE_BYPASS_TMT_OFF, /* timeout disabled. */
1389 RTE_BYPASS_TMT_1_5_SEC, /* timeout for 1.5 seconds */
1390 RTE_BYPASS_TMT_2_SEC, /* timeout for 2 seconds */
1391 RTE_BYPASS_TMT_3_SEC, /* timeout for 3 seconds */
1392 RTE_BYPASS_TMT_4_SEC, /* timeout for 4 seconds */
1393 RTE_BYPASS_TMT_8_SEC, /* timeout for 8 seconds */
1394 RTE_BYPASS_TMT_16_SEC, /* timeout for 16 seconds */
1395 RTE_BYPASS_TMT_32_SEC, /* timeout for 32 seconds */
1399 #define RTE_BYPASS_TMT_VALID(x) \
1400 ((x) == RTE_BYPASS_TMT_OFF || \
1401 ((x) > RTE_BYPASS_TMT_OFF && (x) < RTE_BYPASS_TMT_NUM))
1403 typedef void (*bypass_init_t)(struct rte_eth_dev *dev);
1404 typedef int32_t (*bypass_state_set_t)(struct rte_eth_dev *dev, uint32_t *new_state);
1405 typedef int32_t (*bypass_state_show_t)(struct rte_eth_dev *dev, uint32_t *state);
1406 typedef int32_t (*bypass_event_set_t)(struct rte_eth_dev *dev, uint32_t state, uint32_t event);
1407 typedef int32_t (*bypass_event_show_t)(struct rte_eth_dev *dev, uint32_t event_shift, uint32_t *event);
1408 typedef int32_t (*bypass_wd_timeout_set_t)(struct rte_eth_dev *dev, uint32_t timeout);
1409 typedef int32_t (*bypass_wd_timeout_show_t)(struct rte_eth_dev *dev, uint32_t *wd_timeout);
1410 typedef int32_t (*bypass_ver_show_t)(struct rte_eth_dev *dev, uint32_t *ver);
1411 typedef int32_t (*bypass_wd_reset_t)(struct rte_eth_dev *dev);
1414 typedef int (*eth_filter_ctrl_t)(struct rte_eth_dev *dev,
1415 enum rte_filter_type filter_type,
1416 enum rte_filter_op filter_op,
1418 /**< @internal Take operations to assigned filter type on an Ethernet device */
1420 typedef int (*eth_get_dcb_info)(struct rte_eth_dev *dev,
1421 struct rte_eth_dcb_info *dcb_info);
1422 /**< @internal Get dcb information on an Ethernet device */
1425 * @internal A structure containing the functions exported by an Ethernet driver.
1427 struct eth_dev_ops {
1428 eth_dev_configure_t dev_configure; /**< Configure device. */
1429 eth_dev_start_t dev_start; /**< Start device. */
1430 eth_dev_stop_t dev_stop; /**< Stop device. */
1431 eth_dev_set_link_up_t dev_set_link_up; /**< Device link up. */
1432 eth_dev_set_link_down_t dev_set_link_down; /**< Device link down. */
1433 eth_dev_close_t dev_close; /**< Close device. */
1434 eth_promiscuous_enable_t promiscuous_enable; /**< Promiscuous ON. */
1435 eth_promiscuous_disable_t promiscuous_disable;/**< Promiscuous OFF. */
1436 eth_allmulticast_enable_t allmulticast_enable;/**< RX multicast ON. */
1437 eth_allmulticast_disable_t allmulticast_disable;/**< RX multicast OF. */
1438 eth_link_update_t link_update; /**< Get device link state. */
1439 eth_stats_get_t stats_get; /**< Get generic device statistics. */
1440 eth_stats_reset_t stats_reset; /**< Reset generic device statistics. */
1441 eth_xstats_get_t xstats_get; /**< Get extended device statistics. */
1442 eth_xstats_reset_t xstats_reset; /**< Reset extended device statistics. */
1443 eth_xstats_get_names_t xstats_get_names;
1444 /**< Get names of extended statistics. */
1445 eth_queue_stats_mapping_set_t queue_stats_mapping_set;
1446 /**< Configure per queue stat counter mapping. */
1447 eth_dev_infos_get_t dev_infos_get; /**< Get device info. */
1448 eth_dev_supported_ptypes_get_t dev_supported_ptypes_get;
1449 /**< Get packet types supported and identified by device*/
1450 mtu_set_t mtu_set; /**< Set MTU. */
1451 vlan_filter_set_t vlan_filter_set; /**< Filter VLAN Setup. */
1452 vlan_tpid_set_t vlan_tpid_set; /**< Outer/Inner VLAN TPID Setup. */
1453 vlan_strip_queue_set_t vlan_strip_queue_set; /**< VLAN Stripping on queue. */
1454 vlan_offload_set_t vlan_offload_set; /**< Set VLAN Offload. */
1455 vlan_pvid_set_t vlan_pvid_set; /**< Set port based TX VLAN insertion */
1456 eth_queue_start_t rx_queue_start;/**< Start RX for a queue.*/
1457 eth_queue_stop_t rx_queue_stop;/**< Stop RX for a queue.*/
1458 eth_queue_start_t tx_queue_start;/**< Start TX for a queue.*/
1459 eth_queue_stop_t tx_queue_stop;/**< Stop TX for a queue.*/
1460 eth_rx_queue_setup_t rx_queue_setup;/**< Set up device RX queue.*/
1461 eth_queue_release_t rx_queue_release;/**< Release RX queue.*/
1462 eth_rx_queue_count_t rx_queue_count; /**< Get Rx queue count. */
1463 eth_rx_descriptor_done_t rx_descriptor_done; /**< Check rxd DD bit */
1464 /**< Enable Rx queue interrupt. */
1465 eth_rx_enable_intr_t rx_queue_intr_enable;
1466 /**< Disable Rx queue interrupt.*/
1467 eth_rx_disable_intr_t rx_queue_intr_disable;
1468 eth_tx_queue_setup_t tx_queue_setup;/**< Set up device TX queue.*/
1469 eth_queue_release_t tx_queue_release;/**< Release TX queue.*/
1470 eth_dev_led_on_t dev_led_on; /**< Turn on LED. */
1471 eth_dev_led_off_t dev_led_off; /**< Turn off LED. */
1472 flow_ctrl_get_t flow_ctrl_get; /**< Get flow control. */
1473 flow_ctrl_set_t flow_ctrl_set; /**< Setup flow control. */
1474 priority_flow_ctrl_set_t priority_flow_ctrl_set; /**< Setup priority flow control.*/
1475 eth_mac_addr_remove_t mac_addr_remove; /**< Remove MAC address */
1476 eth_mac_addr_add_t mac_addr_add; /**< Add a MAC address */
1477 eth_mac_addr_set_t mac_addr_set; /**< Set a MAC address */
1478 eth_uc_hash_table_set_t uc_hash_table_set; /**< Set Unicast Table Array */
1479 eth_uc_all_hash_table_set_t uc_all_hash_table_set; /**< Set Unicast hash bitmap */
1480 eth_mirror_rule_set_t mirror_rule_set; /**< Add a traffic mirror rule.*/
1481 eth_mirror_rule_reset_t mirror_rule_reset; /**< reset a traffic mirror rule.*/
1482 eth_set_vf_rx_mode_t set_vf_rx_mode; /**< Set VF RX mode */
1483 eth_set_vf_rx_t set_vf_rx; /**< enable/disable a VF receive */
1484 eth_set_vf_tx_t set_vf_tx; /**< enable/disable a VF transmit */
1485 eth_set_vf_vlan_filter_t set_vf_vlan_filter; /**< Set VF VLAN filter */
1486 /** Add UDP tunnel port. */
1487 eth_udp_tunnel_port_add_t udp_tunnel_port_add;
1488 /** Del UDP tunnel port. */
1489 eth_udp_tunnel_port_del_t udp_tunnel_port_del;
1490 eth_set_queue_rate_limit_t set_queue_rate_limit; /**< Set queue rate limit */
1491 eth_set_vf_rate_limit_t set_vf_rate_limit; /**< Set VF rate limit */
1492 /** Update redirection table. */
1493 reta_update_t reta_update;
1494 /** Query redirection table. */
1495 reta_query_t reta_query;
1497 eth_get_reg_t get_reg;
1498 /**< Get registers */
1499 eth_get_eeprom_length_t get_eeprom_length;
1500 /**< Get eeprom length */
1501 eth_get_eeprom_t get_eeprom;
1502 /**< Get eeprom data */
1503 eth_set_eeprom_t set_eeprom;
1505 /* bypass control */
1506 #ifdef RTE_NIC_BYPASS
1507 bypass_init_t bypass_init;
1508 bypass_state_set_t bypass_state_set;
1509 bypass_state_show_t bypass_state_show;
1510 bypass_event_set_t bypass_event_set;
1511 bypass_event_show_t bypass_event_show;
1512 bypass_wd_timeout_set_t bypass_wd_timeout_set;
1513 bypass_wd_timeout_show_t bypass_wd_timeout_show;
1514 bypass_ver_show_t bypass_ver_show;
1515 bypass_wd_reset_t bypass_wd_reset;
1518 /** Configure RSS hash protocols. */
1519 rss_hash_update_t rss_hash_update;
1520 /** Get current RSS hash configuration. */
1521 rss_hash_conf_get_t rss_hash_conf_get;
1522 eth_filter_ctrl_t filter_ctrl;
1523 /**< common filter control. */
1524 eth_set_mc_addr_list_t set_mc_addr_list; /**< set list of mcast addrs */
1525 eth_rxq_info_get_t rxq_info_get;
1526 /**< retrieve RX queue information. */
1527 eth_txq_info_get_t txq_info_get;
1528 /**< retrieve TX queue information. */
1529 /** Turn IEEE1588/802.1AS timestamping on. */
1530 eth_timesync_enable_t timesync_enable;
1531 /** Turn IEEE1588/802.1AS timestamping off. */
1532 eth_timesync_disable_t timesync_disable;
1533 /** Read the IEEE1588/802.1AS RX timestamp. */
1534 eth_timesync_read_rx_timestamp_t timesync_read_rx_timestamp;
1535 /** Read the IEEE1588/802.1AS TX timestamp. */
1536 eth_timesync_read_tx_timestamp_t timesync_read_tx_timestamp;
1538 /** Get DCB information */
1539 eth_get_dcb_info get_dcb_info;
1540 /** Adjust the device clock.*/
1541 eth_timesync_adjust_time timesync_adjust_time;
1542 /** Get the device clock time. */
1543 eth_timesync_read_time timesync_read_time;
1544 /** Set the device clock time. */
1545 eth_timesync_write_time timesync_write_time;
1546 /** Config ether type of l2 tunnel */
1547 eth_l2_tunnel_eth_type_conf_t l2_tunnel_eth_type_conf;
1548 /** Enable/disable l2 tunnel offload functions */
1549 eth_l2_tunnel_offload_set_t l2_tunnel_offload_set;
1553 * Function type used for RX packet processing packet callbacks.
1555 * The callback function is called on RX with a burst of packets that have
1556 * been received on the given port and queue.
1559 * The Ethernet port on which RX is being performed.
1561 * The queue on the Ethernet port which is being used to receive the packets.
1563 * The burst of packets that have just been received.
1565 * The number of packets in the burst pointed to by "pkts".
1567 * The max number of packets that can be stored in the "pkts" array.
1569 * The arbitrary user parameter passed in by the application when the callback
1570 * was originally configured.
1572 * The number of packets returned to the user.
1574 typedef uint16_t (*rte_rx_callback_fn)(uint8_t port, uint16_t queue,
1575 struct rte_mbuf *pkts[], uint16_t nb_pkts, uint16_t max_pkts,
1579 * Function type used for TX packet processing packet callbacks.
1581 * The callback function is called on TX with a burst of packets immediately
1582 * before the packets are put onto the hardware queue for transmission.
1585 * The Ethernet port on which TX is being performed.
1587 * The queue on the Ethernet port which is being used to transmit the packets.
1589 * The burst of packets that are about to be transmitted.
1591 * The number of packets in the burst pointed to by "pkts".
1593 * The arbitrary user parameter passed in by the application when the callback
1594 * was originally configured.
1596 * The number of packets to be written to the NIC.
1598 typedef uint16_t (*rte_tx_callback_fn)(uint8_t port, uint16_t queue,
1599 struct rte_mbuf *pkts[], uint16_t nb_pkts, void *user_param);
1603 * Structure used to hold information about the callbacks to be called for a
1604 * queue on RX and TX.
1606 struct rte_eth_rxtx_callback {
1607 struct rte_eth_rxtx_callback *next;
1609 rte_rx_callback_fn rx;
1610 rte_tx_callback_fn tx;
1617 * The generic data structure associated with each ethernet device.
1619 * Pointers to burst-oriented packet receive and transmit functions are
1620 * located at the beginning of the structure, along with the pointer to
1621 * where all the data elements for the particular device are stored in shared
1622 * memory. This split allows the function pointer and driver data to be per-
1623 * process, while the actual configuration data for the device is shared.
1625 struct rte_eth_dev {
1626 eth_rx_burst_t rx_pkt_burst; /**< Pointer to PMD receive function. */
1627 eth_tx_burst_t tx_pkt_burst; /**< Pointer to PMD transmit function. */
1628 struct rte_eth_dev_data *data; /**< Pointer to device data */
1629 const struct eth_driver *driver;/**< Driver for this device */
1630 const struct eth_dev_ops *dev_ops; /**< Functions exported by PMD */
1631 struct rte_pci_device *pci_dev; /**< PCI info. supplied by probing */
1632 /** User application callbacks for NIC interrupts */
1633 struct rte_eth_dev_cb_list link_intr_cbs;
1635 * User-supplied functions called from rx_burst to post-process
1636 * received packets before passing them to the user
1638 struct rte_eth_rxtx_callback *post_rx_burst_cbs[RTE_MAX_QUEUES_PER_PORT];
1640 * User-supplied functions called from tx_burst to pre-process
1641 * received packets before passing them to the driver for transmission.
1643 struct rte_eth_rxtx_callback *pre_tx_burst_cbs[RTE_MAX_QUEUES_PER_PORT];
1644 uint8_t attached; /**< Flag indicating the port is attached */
1645 } __rte_cache_aligned;
1647 struct rte_eth_dev_sriov {
1648 uint8_t active; /**< SRIOV is active with 16, 32 or 64 pools */
1649 uint8_t nb_q_per_pool; /**< rx queue number per pool */
1650 uint16_t def_vmdq_idx; /**< Default pool num used for PF */
1651 uint16_t def_pool_q_idx; /**< Default pool queue start reg index */
1653 #define RTE_ETH_DEV_SRIOV(dev) ((dev)->data->sriov)
1655 #define RTE_ETH_NAME_MAX_LEN (32)
1659 * The data part, with no function pointers, associated with each ethernet device.
1661 * This structure is safe to place in shared memory to be common among different
1662 * processes in a multi-process configuration.
1664 struct rte_eth_dev_data {
1665 char name[RTE_ETH_NAME_MAX_LEN]; /**< Unique identifier name */
1667 void **rx_queues; /**< Array of pointers to RX queues. */
1668 void **tx_queues; /**< Array of pointers to TX queues. */
1669 uint16_t nb_rx_queues; /**< Number of RX queues. */
1670 uint16_t nb_tx_queues; /**< Number of TX queues. */
1672 struct rte_eth_dev_sriov sriov; /**< SRIOV data */
1674 void *dev_private; /**< PMD-specific private data */
1676 struct rte_eth_link dev_link;
1677 /**< Link-level information & status */
1679 struct rte_eth_conf dev_conf; /**< Configuration applied to device. */
1680 uint16_t mtu; /**< Maximum Transmission Unit. */
1682 uint32_t min_rx_buf_size;
1683 /**< Common rx buffer size handled by all queues */
1685 uint64_t rx_mbuf_alloc_failed; /**< RX ring mbuf allocation failures. */
1686 struct ether_addr* mac_addrs;/**< Device Ethernet Link address. */
1687 uint64_t mac_pool_sel[ETH_NUM_RECEIVE_MAC_ADDR];
1688 /** bitmap array of associating Ethernet MAC addresses to pools */
1689 struct ether_addr* hash_mac_addrs;
1690 /** Device Ethernet MAC addresses of hash filtering. */
1691 uint8_t port_id; /**< Device [external] port identifier. */
1693 uint8_t promiscuous : 1, /**< RX promiscuous mode ON(1) / OFF(0). */
1694 scattered_rx : 1, /**< RX of scattered packets is ON(1) / OFF(0) */
1695 all_multicast : 1, /**< RX all multicast mode ON(1) / OFF(0). */
1696 dev_started : 1, /**< Device state: STARTED(1) / STOPPED(0). */
1697 lro : 1; /**< RX LRO is ON(1) / OFF(0) */
1698 uint8_t rx_queue_state[RTE_MAX_QUEUES_PER_PORT];
1699 /** Queues state: STARTED(1) / STOPPED(0) */
1700 uint8_t tx_queue_state[RTE_MAX_QUEUES_PER_PORT];
1701 /** Queues state: STARTED(1) / STOPPED(0) */
1702 uint32_t dev_flags; /**< Capabilities */
1703 enum rte_kernel_driver kdrv; /**< Kernel driver passthrough */
1704 int numa_node; /**< NUMA node connection */
1705 const char *drv_name; /**< Driver name */
1708 /** Device supports hotplug detach */
1709 #define RTE_ETH_DEV_DETACHABLE 0x0001
1710 /** Device supports link state interrupt */
1711 #define RTE_ETH_DEV_INTR_LSC 0x0002
1712 /** Device is a bonded slave */
1713 #define RTE_ETH_DEV_BONDED_SLAVE 0x0004
1717 * The pool of *rte_eth_dev* structures. The size of the pool
1718 * is configured at compile-time in the <rte_ethdev.c> file.
1720 extern struct rte_eth_dev rte_eth_devices[];
1723 * Get the total number of Ethernet devices that have been successfully
1724 * initialized by the [matching] Ethernet driver during the PCI probing phase.
1725 * All devices whose port identifier is in the range
1726 * [0, rte_eth_dev_count() - 1] can be operated on by network applications
1727 * immediately after invoking rte_eal_init().
1728 * If the application unplugs a port using hotplug function, The enabled port
1729 * numbers may be noncontiguous. In the case, the applications need to manage
1730 * enabled port by themselves.
1733 * - The total number of usable Ethernet devices.
1735 uint8_t rte_eth_dev_count(void);
1739 * Returns a ethdev slot specified by the unique identifier name.
1742 * The pointer to the Unique identifier name for each Ethernet device
1744 * - The pointer to the ethdev slot, on success. NULL on error
1746 struct rte_eth_dev *rte_eth_dev_allocated(const char *name);
1750 * Allocates a new ethdev slot for an ethernet device and returns the pointer
1751 * to that slot for the driver to use.
1753 * @param name Unique identifier name for each Ethernet device
1754 * @param type Device type of this Ethernet device
1756 * - Slot in the rte_dev_devices array for a new device;
1758 struct rte_eth_dev *rte_eth_dev_allocate(const char *name);
1762 * Release the specified ethdev port.
1765 * The *eth_dev* pointer is the address of the *rte_eth_dev* structure.
1767 * - 0 on success, negative on error
1769 int rte_eth_dev_release_port(struct rte_eth_dev *eth_dev);
1772 * Attach a new Ethernet device specified by aruguments.
1775 * A pointer to a strings array describing the new device
1776 * to be attached. The strings should be a pci address like
1777 * '0000:01:00.0' or virtual device name like 'net_pcap0'.
1779 * A pointer to a port identifier actually attached.
1781 * 0 on success and port_id is filled, negative on error
1783 int rte_eth_dev_attach(const char *devargs, uint8_t *port_id);
1786 * Detach a Ethernet device specified by port identifier.
1787 * This function must be called when the device is in the
1791 * The port identifier of the device to detach.
1793 * A pointer to a device name actually detached.
1795 * 0 on success and devname is filled, negative on error
1797 int rte_eth_dev_detach(uint8_t port_id, char *devname);
1802 * Initialization function of an Ethernet driver invoked for each matching
1803 * Ethernet PCI device detected during the PCI probing phase.
1806 * The *eth_dev* pointer is the address of the *rte_eth_dev* structure
1807 * associated with the matching device and which have been [automatically]
1808 * allocated in the *rte_eth_devices* array.
1809 * The *eth_dev* structure is supplied to the driver initialization function
1810 * with the following fields already initialized:
1812 * - *pci_dev*: Holds the pointers to the *rte_pci_device* structure which
1813 * contains the generic PCI information of the matching device.
1815 * - *driver*: Holds the pointer to the *eth_driver* structure.
1817 * - *dev_private*: Holds a pointer to the device private data structure.
1819 * - *mtu*: Contains the default Ethernet maximum frame length (1500).
1821 * - *port_id*: Contains the port index of the device (actually the index
1822 * of the *eth_dev* structure in the *rte_eth_devices* array).
1825 * - 0: Success, the device is properly initialized by the driver.
1826 * In particular, the driver MUST have set up the *dev_ops* pointer
1827 * of the *eth_dev* structure.
1828 * - <0: Error code of the device initialization failure.
1830 typedef int (*eth_dev_init_t)(struct rte_eth_dev *eth_dev);
1834 * Finalization function of an Ethernet driver invoked for each matching
1835 * Ethernet PCI device detected during the PCI closing phase.
1838 * The *eth_dev* pointer is the address of the *rte_eth_dev* structure
1839 * associated with the matching device and which have been [automatically]
1840 * allocated in the *rte_eth_devices* array.
1842 * - 0: Success, the device is properly finalized by the driver.
1843 * In particular, the driver MUST free the *dev_ops* pointer
1844 * of the *eth_dev* structure.
1845 * - <0: Error code of the device initialization failure.
1847 typedef int (*eth_dev_uninit_t)(struct rte_eth_dev *eth_dev);
1851 * The structure associated with a PMD Ethernet driver.
1853 * Each Ethernet driver acts as a PCI driver and is represented by a generic
1854 * *eth_driver* structure that holds:
1856 * - An *rte_pci_driver* structure (which must be the first field).
1858 * - The *eth_dev_init* function invoked for each matching PCI device.
1860 * - The *eth_dev_uninit* function invoked for each matching PCI device.
1862 * - The size of the private data to allocate for each matching device.
1865 struct rte_pci_driver pci_drv; /**< The PMD is also a PCI driver. */
1866 eth_dev_init_t eth_dev_init; /**< Device init function. */
1867 eth_dev_uninit_t eth_dev_uninit; /**< Device uninit function. */
1868 unsigned int dev_private_size; /**< Size of device private data. */
1872 * Convert a numerical speed in Mbps to a bitmap flag that can be used in
1873 * the bitmap link_speeds of the struct rte_eth_conf
1876 * Numerical speed value in Mbps
1878 * ETH_LINK_[HALF/FULL]_DUPLEX (only for 10/100M speeds)
1880 * 0 if the speed cannot be mapped
1882 uint32_t rte_eth_speed_bitflag(uint32_t speed, int duplex);
1885 * Configure an Ethernet device.
1886 * This function must be invoked first before any other function in the
1887 * Ethernet API. This function can also be re-invoked when a device is in the
1891 * The port identifier of the Ethernet device to configure.
1892 * @param nb_rx_queue
1893 * The number of receive queues to set up for the Ethernet device.
1894 * @param nb_tx_queue
1895 * The number of transmit queues to set up for the Ethernet device.
1897 * The pointer to the configuration data to be used for the Ethernet device.
1898 * The *rte_eth_conf* structure includes:
1899 * - the hardware offload features to activate, with dedicated fields for
1900 * each statically configurable offload hardware feature provided by
1901 * Ethernet devices, such as IP checksum or VLAN tag stripping for
1903 * - the Receive Side Scaling (RSS) configuration when using multiple RX
1906 * Embedding all configuration information in a single data structure
1907 * is the more flexible method that allows the addition of new features
1908 * without changing the syntax of the API.
1910 * - 0: Success, device configured.
1911 * - <0: Error code returned by the driver configuration function.
1913 int rte_eth_dev_configure(uint8_t port_id, uint16_t nb_rx_queue,
1914 uint16_t nb_tx_queue, const struct rte_eth_conf *eth_conf);
1917 * Allocate and set up a receive queue for an Ethernet device.
1919 * The function allocates a contiguous block of memory for *nb_rx_desc*
1920 * receive descriptors from a memory zone associated with *socket_id*
1921 * and initializes each receive descriptor with a network buffer allocated
1922 * from the memory pool *mb_pool*.
1925 * The port identifier of the Ethernet device.
1926 * @param rx_queue_id
1927 * The index of the receive queue to set up.
1928 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
1929 * to rte_eth_dev_configure().
1931 * The number of receive descriptors to allocate for the receive ring.
1933 * The *socket_id* argument is the socket identifier in case of NUMA.
1934 * The value can be *SOCKET_ID_ANY* if there is no NUMA constraint for
1935 * the DMA memory allocated for the receive descriptors of the ring.
1937 * The pointer to the configuration data to be used for the receive queue.
1938 * NULL value is allowed, in which case default RX configuration
1940 * The *rx_conf* structure contains an *rx_thresh* structure with the values
1941 * of the Prefetch, Host, and Write-Back threshold registers of the receive
1944 * The pointer to the memory pool from which to allocate *rte_mbuf* network
1945 * memory buffers to populate each descriptor of the receive ring.
1947 * - 0: Success, receive queue correctly set up.
1948 * - -EINVAL: The size of network buffers which can be allocated from the
1949 * memory pool does not fit the various buffer sizes allowed by the
1950 * device controller.
1951 * - -ENOMEM: Unable to allocate the receive ring descriptors or to
1952 * allocate network memory buffers from the memory pool when
1953 * initializing receive descriptors.
1955 int rte_eth_rx_queue_setup(uint8_t port_id, uint16_t rx_queue_id,
1956 uint16_t nb_rx_desc, unsigned int socket_id,
1957 const struct rte_eth_rxconf *rx_conf,
1958 struct rte_mempool *mb_pool);
1961 * Allocate and set up a transmit queue for an Ethernet device.
1964 * The port identifier of the Ethernet device.
1965 * @param tx_queue_id
1966 * The index of the transmit queue to set up.
1967 * The value must be in the range [0, nb_tx_queue - 1] previously supplied
1968 * to rte_eth_dev_configure().
1970 * The number of transmit descriptors to allocate for the transmit ring.
1972 * The *socket_id* argument is the socket identifier in case of NUMA.
1973 * Its value can be *SOCKET_ID_ANY* if there is no NUMA constraint for
1974 * the DMA memory allocated for the transmit descriptors of the ring.
1976 * The pointer to the configuration data to be used for the transmit queue.
1977 * NULL value is allowed, in which case default RX configuration
1979 * The *tx_conf* structure contains the following data:
1980 * - The *tx_thresh* structure with the values of the Prefetch, Host, and
1981 * Write-Back threshold registers of the transmit ring.
1982 * When setting Write-Back threshold to the value greater then zero,
1983 * *tx_rs_thresh* value should be explicitly set to one.
1984 * - The *tx_free_thresh* value indicates the [minimum] number of network
1985 * buffers that must be pending in the transmit ring to trigger their
1986 * [implicit] freeing by the driver transmit function.
1987 * - The *tx_rs_thresh* value indicates the [minimum] number of transmit
1988 * descriptors that must be pending in the transmit ring before setting the
1989 * RS bit on a descriptor by the driver transmit function.
1990 * The *tx_rs_thresh* value should be less or equal then
1991 * *tx_free_thresh* value, and both of them should be less then
1993 * - The *txq_flags* member contains flags to pass to the TX queue setup
1994 * function to configure the behavior of the TX queue. This should be set
1995 * to 0 if no special configuration is required.
1997 * Note that setting *tx_free_thresh* or *tx_rs_thresh* value to 0 forces
1998 * the transmit function to use default values.
2000 * - 0: Success, the transmit queue is correctly set up.
2001 * - -ENOMEM: Unable to allocate the transmit ring descriptors.
2003 int rte_eth_tx_queue_setup(uint8_t port_id, uint16_t tx_queue_id,
2004 uint16_t nb_tx_desc, unsigned int socket_id,
2005 const struct rte_eth_txconf *tx_conf);
2008 * Return the NUMA socket to which an Ethernet device is connected
2011 * The port identifier of the Ethernet device
2013 * The NUMA socket id to which the Ethernet device is connected or
2014 * a default of zero if the socket could not be determined.
2015 * -1 is returned is the port_id value is out of range.
2017 int rte_eth_dev_socket_id(uint8_t port_id);
2020 * Check if port_id of device is attached
2023 * The port identifier of the Ethernet device
2025 * - 0 if port is out of range or not attached
2026 * - 1 if device is attached
2028 int rte_eth_dev_is_valid_port(uint8_t port_id);
2031 * Start specified RX queue of a port. It is used when rx_deferred_start
2032 * flag of the specified queue is true.
2035 * The port identifier of the Ethernet device
2036 * @param rx_queue_id
2037 * The index of the rx queue to update the ring.
2038 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
2039 * to rte_eth_dev_configure().
2041 * - 0: Success, the receive queue is started.
2042 * - -EINVAL: The port_id or the queue_id out of range.
2043 * - -ENOTSUP: The function not supported in PMD driver.
2045 int rte_eth_dev_rx_queue_start(uint8_t port_id, uint16_t rx_queue_id);
2048 * Stop specified RX queue of a port
2051 * The port identifier of the Ethernet device
2052 * @param rx_queue_id
2053 * The index of the rx queue to update the ring.
2054 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
2055 * to rte_eth_dev_configure().
2057 * - 0: Success, the receive queue is stopped.
2058 * - -EINVAL: The port_id or the queue_id out of range.
2059 * - -ENOTSUP: The function not supported in PMD driver.
2061 int rte_eth_dev_rx_queue_stop(uint8_t port_id, uint16_t rx_queue_id);
2064 * Start TX for specified queue of a port. It is used when tx_deferred_start
2065 * flag of the specified queue is true.
2068 * The port identifier of the Ethernet device
2069 * @param tx_queue_id
2070 * The index of the tx queue to update the ring.
2071 * The value must be in the range [0, nb_tx_queue - 1] previously supplied
2072 * to rte_eth_dev_configure().
2074 * - 0: Success, the transmit queue is started.
2075 * - -EINVAL: The port_id or the queue_id out of range.
2076 * - -ENOTSUP: The function not supported in PMD driver.
2078 int rte_eth_dev_tx_queue_start(uint8_t port_id, uint16_t tx_queue_id);
2081 * Stop specified TX queue of a port
2084 * The port identifier of the Ethernet device
2085 * @param tx_queue_id
2086 * The index of the tx queue to update the ring.
2087 * The value must be in the range [0, nb_tx_queue - 1] previously supplied
2088 * to rte_eth_dev_configure().
2090 * - 0: Success, the transmit queue is stopped.
2091 * - -EINVAL: The port_id or the queue_id out of range.
2092 * - -ENOTSUP: The function not supported in PMD driver.
2094 int rte_eth_dev_tx_queue_stop(uint8_t port_id, uint16_t tx_queue_id);
2099 * Start an Ethernet device.
2101 * The device start step is the last one and consists of setting the configured
2102 * offload features and in starting the transmit and the receive units of the
2104 * On success, all basic functions exported by the Ethernet API (link status,
2105 * receive/transmit, and so on) can be invoked.
2108 * The port identifier of the Ethernet device.
2110 * - 0: Success, Ethernet device started.
2111 * - <0: Error code of the driver device start function.
2113 int rte_eth_dev_start(uint8_t port_id);
2116 * Stop an Ethernet device. The device can be restarted with a call to
2117 * rte_eth_dev_start()
2120 * The port identifier of the Ethernet device.
2122 void rte_eth_dev_stop(uint8_t port_id);
2126 * Link up an Ethernet device.
2128 * Set device link up will re-enable the device rx/tx
2129 * functionality after it is previously set device linked down.
2132 * The port identifier of the Ethernet device.
2134 * - 0: Success, Ethernet device linked up.
2135 * - <0: Error code of the driver device link up function.
2137 int rte_eth_dev_set_link_up(uint8_t port_id);
2140 * Link down an Ethernet device.
2141 * The device rx/tx functionality will be disabled if success,
2142 * and it can be re-enabled with a call to
2143 * rte_eth_dev_set_link_up()
2146 * The port identifier of the Ethernet device.
2148 int rte_eth_dev_set_link_down(uint8_t port_id);
2151 * Close a stopped Ethernet device. The device cannot be restarted!
2152 * The function frees all resources except for needed by the
2153 * closed state. To free these resources, call rte_eth_dev_detach().
2156 * The port identifier of the Ethernet device.
2158 void rte_eth_dev_close(uint8_t port_id);
2161 * Enable receipt in promiscuous mode for an Ethernet device.
2164 * The port identifier of the Ethernet device.
2166 void rte_eth_promiscuous_enable(uint8_t port_id);
2169 * Disable receipt in promiscuous mode for an Ethernet device.
2172 * The port identifier of the Ethernet device.
2174 void rte_eth_promiscuous_disable(uint8_t port_id);
2177 * Return the value of promiscuous mode for an Ethernet device.
2180 * The port identifier of the Ethernet device.
2182 * - (1) if promiscuous is enabled
2183 * - (0) if promiscuous is disabled.
2186 int rte_eth_promiscuous_get(uint8_t port_id);
2189 * Enable the receipt of any multicast frame by an Ethernet device.
2192 * The port identifier of the Ethernet device.
2194 void rte_eth_allmulticast_enable(uint8_t port_id);
2197 * Disable the receipt of all multicast frames by an Ethernet device.
2200 * The port identifier of the Ethernet device.
2202 void rte_eth_allmulticast_disable(uint8_t port_id);
2205 * Return the value of allmulticast mode for an Ethernet device.
2208 * The port identifier of the Ethernet device.
2210 * - (1) if allmulticast is enabled
2211 * - (0) if allmulticast is disabled.
2214 int rte_eth_allmulticast_get(uint8_t port_id);
2217 * Retrieve the status (ON/OFF), the speed (in Mbps) and the mode (HALF-DUPLEX
2218 * or FULL-DUPLEX) of the physical link of an Ethernet device. It might need
2219 * to wait up to 9 seconds in it.
2222 * The port identifier of the Ethernet device.
2224 * A pointer to an *rte_eth_link* structure to be filled with
2225 * the status, the speed and the mode of the Ethernet device link.
2227 void rte_eth_link_get(uint8_t port_id, struct rte_eth_link *link);
2230 * Retrieve the status (ON/OFF), the speed (in Mbps) and the mode (HALF-DUPLEX
2231 * or FULL-DUPLEX) of the physical link of an Ethernet device. It is a no-wait
2232 * version of rte_eth_link_get().
2235 * The port identifier of the Ethernet device.
2237 * A pointer to an *rte_eth_link* structure to be filled with
2238 * the status, the speed and the mode of the Ethernet device link.
2240 void rte_eth_link_get_nowait(uint8_t port_id, struct rte_eth_link *link);
2243 * Retrieve the general I/O statistics of an Ethernet device.
2246 * The port identifier of the Ethernet device.
2248 * A pointer to a structure of type *rte_eth_stats* to be filled with
2249 * the values of device counters for the following set of statistics:
2250 * - *ipackets* with the total of successfully received packets.
2251 * - *opackets* with the total of successfully transmitted packets.
2252 * - *ibytes* with the total of successfully received bytes.
2253 * - *obytes* with the total of successfully transmitted bytes.
2254 * - *ierrors* with the total of erroneous received packets.
2255 * - *oerrors* with the total of failed transmitted packets.
2257 * Zero if successful. Non-zero otherwise.
2259 int rte_eth_stats_get(uint8_t port_id, struct rte_eth_stats *stats);
2262 * Reset the general I/O statistics of an Ethernet device.
2265 * The port identifier of the Ethernet device.
2267 void rte_eth_stats_reset(uint8_t port_id);
2270 * Retrieve names of extended statistics of an Ethernet device.
2273 * The port identifier of the Ethernet device.
2274 * @param xstats_names
2275 * Block of memory to insert names into. Must be at least size in capacity.
2276 * If set to NULL, function returns required capacity.
2278 * Capacity of xstats_names (number of names).
2280 * - positive value lower or equal to size: success. The return value
2281 * is the number of entries filled in the stats table.
2282 * - positive value higher than size: error, the given statistics table
2283 * is too small. The return value corresponds to the size that should
2284 * be given to succeed. The entries in the table are not valid and
2285 * shall not be used by the caller.
2286 * - negative value on error (invalid port id)
2288 int rte_eth_xstats_get_names(uint8_t port_id,
2289 struct rte_eth_xstat_name *xstats_names,
2293 * Retrieve extended statistics of an Ethernet device.
2296 * The port identifier of the Ethernet device.
2298 * A pointer to a table of structure of type *rte_eth_xstat*
2299 * to be filled with device statistics ids and values.
2300 * This parameter can be set to NULL if n is 0.
2302 * The size of the stats table, which should be large enough to store
2303 * all the statistics of the device.
2305 * - positive value lower or equal to n: success. The return value
2306 * is the number of entries filled in the stats table.
2307 * - positive value higher than n: error, the given statistics table
2308 * is too small. The return value corresponds to the size that should
2309 * be given to succeed. The entries in the table are not valid and
2310 * shall not be used by the caller.
2311 * - negative value on error (invalid port id)
2313 int rte_eth_xstats_get(uint8_t port_id, struct rte_eth_xstat *xstats,
2317 * Reset extended statistics of an Ethernet device.
2320 * The port identifier of the Ethernet device.
2322 void rte_eth_xstats_reset(uint8_t port_id);
2325 * Set a mapping for the specified transmit queue to the specified per-queue
2326 * statistics counter.
2329 * The port identifier of the Ethernet device.
2330 * @param tx_queue_id
2331 * The index of the transmit queue for which a queue stats mapping is required.
2332 * The value must be in the range [0, nb_tx_queue - 1] previously supplied
2333 * to rte_eth_dev_configure().
2335 * The per-queue packet statistics functionality number that the transmit
2336 * queue is to be assigned.
2337 * The value must be in the range [0, RTE_MAX_ETHPORT_QUEUE_STATS_MAPS - 1].
2339 * Zero if successful. Non-zero otherwise.
2341 int rte_eth_dev_set_tx_queue_stats_mapping(uint8_t port_id,
2342 uint16_t tx_queue_id, uint8_t stat_idx);
2345 * Set a mapping for the specified receive queue to the specified per-queue
2346 * statistics counter.
2349 * The port identifier of the Ethernet device.
2350 * @param rx_queue_id
2351 * The index of the receive queue for which a queue stats mapping is required.
2352 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
2353 * to rte_eth_dev_configure().
2355 * The per-queue packet statistics functionality number that the receive
2356 * queue is to be assigned.
2357 * The value must be in the range [0, RTE_MAX_ETHPORT_QUEUE_STATS_MAPS - 1].
2359 * Zero if successful. Non-zero otherwise.
2361 int rte_eth_dev_set_rx_queue_stats_mapping(uint8_t port_id,
2362 uint16_t rx_queue_id,
2366 * Retrieve the Ethernet address of an Ethernet device.
2369 * The port identifier of the Ethernet device.
2371 * A pointer to a structure of type *ether_addr* to be filled with
2372 * the Ethernet address of the Ethernet device.
2374 void rte_eth_macaddr_get(uint8_t port_id, struct ether_addr *mac_addr);
2377 * Retrieve the contextual information of an Ethernet device.
2380 * The port identifier of the Ethernet device.
2382 * A pointer to a structure of type *rte_eth_dev_info* to be filled with
2383 * the contextual information of the Ethernet device.
2385 void rte_eth_dev_info_get(uint8_t port_id, struct rte_eth_dev_info *dev_info);
2388 * Retrieve the supported packet types of an Ethernet device.
2390 * When a packet type is announced as supported, it *must* be recognized by
2391 * the PMD. For instance, if RTE_PTYPE_L2_ETHER, RTE_PTYPE_L2_ETHER_VLAN
2392 * and RTE_PTYPE_L3_IPV4 are announced, the PMD must return the following
2393 * packet types for these packets:
2394 * - Ether/IPv4 -> RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4
2395 * - Ether/Vlan/IPv4 -> RTE_PTYPE_L2_ETHER_VLAN | RTE_PTYPE_L3_IPV4
2396 * - Ether/[anything else] -> RTE_PTYPE_L2_ETHER
2397 * - Ether/Vlan/[anything else] -> RTE_PTYPE_L2_ETHER_VLAN
2399 * When a packet is received by a PMD, the most precise type must be
2400 * returned among the ones supported. However a PMD is allowed to set
2401 * packet type that is not in the supported list, at the condition that it
2402 * is more precise. Therefore, a PMD announcing no supported packet types
2403 * can still set a matching packet type in a received packet.
2406 * Better to invoke this API after the device is already started or rx burst
2407 * function is decided, to obtain correct supported ptypes.
2409 * if a given PMD does not report what ptypes it supports, then the supported
2410 * ptype count is reported as 0.
2412 * The port identifier of the Ethernet device.
2414 * A hint of what kind of packet type which the caller is interested in.
2416 * An array pointer to store adequent packet types, allocated by caller.
2418 * Size of the array pointed by param ptypes.
2420 * - (>=0) Number of supported ptypes. If the number of types exceeds num,
2421 * only num entries will be filled into the ptypes array, but the full
2422 * count of supported ptypes will be returned.
2423 * - (-ENODEV) if *port_id* invalid.
2425 int rte_eth_dev_get_supported_ptypes(uint8_t port_id, uint32_t ptype_mask,
2426 uint32_t *ptypes, int num);
2429 * Retrieve the MTU of an Ethernet device.
2432 * The port identifier of the Ethernet device.
2434 * A pointer to a uint16_t where the retrieved MTU is to be stored.
2436 * - (0) if successful.
2437 * - (-ENODEV) if *port_id* invalid.
2439 int rte_eth_dev_get_mtu(uint8_t port_id, uint16_t *mtu);
2442 * Change the MTU of an Ethernet device.
2445 * The port identifier of the Ethernet device.
2447 * A uint16_t for the MTU to be applied.
2449 * - (0) if successful.
2450 * - (-ENOTSUP) if operation is not supported.
2451 * - (-ENODEV) if *port_id* invalid.
2452 * - (-EINVAL) if *mtu* invalid.
2453 * - (-EBUSY) if operation is not allowed when the port is running
2455 int rte_eth_dev_set_mtu(uint8_t port_id, uint16_t mtu);
2458 * Enable/Disable hardware filtering by an Ethernet device of received
2459 * VLAN packets tagged with a given VLAN Tag Identifier.
2462 * The port identifier of the Ethernet device.
2464 * The VLAN Tag Identifier whose filtering must be enabled or disabled.
2466 * If > 0, enable VLAN filtering of VLAN packets tagged with *vlan_id*.
2467 * Otherwise, disable VLAN filtering of VLAN packets tagged with *vlan_id*.
2469 * - (0) if successful.
2470 * - (-ENOSUP) if hardware-assisted VLAN filtering not configured.
2471 * - (-ENODEV) if *port_id* invalid.
2472 * - (-ENOSYS) if VLAN filtering on *port_id* disabled.
2473 * - (-EINVAL) if *vlan_id* > 4095.
2475 int rte_eth_dev_vlan_filter(uint8_t port_id, uint16_t vlan_id, int on);
2478 * Enable/Disable hardware VLAN Strip by a rx queue of an Ethernet device.
2479 * 82599/X540/X550 can support VLAN stripping at the rx queue level
2482 * The port identifier of the Ethernet device.
2483 * @param rx_queue_id
2484 * The index of the receive queue for which a queue stats mapping is required.
2485 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
2486 * to rte_eth_dev_configure().
2488 * If 1, Enable VLAN Stripping of the receive queue of the Ethernet port.
2489 * If 0, Disable VLAN Stripping of the receive queue of the Ethernet port.
2491 * - (0) if successful.
2492 * - (-ENOSUP) if hardware-assisted VLAN stripping not configured.
2493 * - (-ENODEV) if *port_id* invalid.
2494 * - (-EINVAL) if *rx_queue_id* invalid.
2496 int rte_eth_dev_set_vlan_strip_on_queue(uint8_t port_id, uint16_t rx_queue_id,
2500 * Set the Outer VLAN Ether Type by an Ethernet device, it can be inserted to
2501 * the VLAN Header. This is a register setup available on some Intel NIC, not
2502 * but all, please check the data sheet for availability.
2505 * The port identifier of the Ethernet device.
2509 * The Tag Protocol ID
2511 * - (0) if successful.
2512 * - (-ENOSUP) if hardware-assisted VLAN TPID setup is not supported.
2513 * - (-ENODEV) if *port_id* invalid.
2515 int rte_eth_dev_set_vlan_ether_type(uint8_t port_id,
2516 enum rte_vlan_type vlan_type,
2520 * Set VLAN offload configuration on an Ethernet device
2521 * Enable/Disable Extended VLAN by an Ethernet device, This is a register setup
2522 * available on some Intel NIC, not but all, please check the data sheet for
2524 * Enable/Disable VLAN Strip can be done on rx queue for certain NIC, but here
2525 * the configuration is applied on the port level.
2528 * The port identifier of the Ethernet device.
2529 * @param offload_mask
2530 * The VLAN Offload bit mask can be mixed use with "OR"
2531 * ETH_VLAN_STRIP_OFFLOAD
2532 * ETH_VLAN_FILTER_OFFLOAD
2533 * ETH_VLAN_EXTEND_OFFLOAD
2535 * - (0) if successful.
2536 * - (-ENOSUP) if hardware-assisted VLAN filtering not configured.
2537 * - (-ENODEV) if *port_id* invalid.
2539 int rte_eth_dev_set_vlan_offload(uint8_t port_id, int offload_mask);
2542 * Read VLAN Offload configuration from an Ethernet device
2545 * The port identifier of the Ethernet device.
2547 * - (>0) if successful. Bit mask to indicate
2548 * ETH_VLAN_STRIP_OFFLOAD
2549 * ETH_VLAN_FILTER_OFFLOAD
2550 * ETH_VLAN_EXTEND_OFFLOAD
2551 * - (-ENODEV) if *port_id* invalid.
2553 int rte_eth_dev_get_vlan_offload(uint8_t port_id);
2556 * Set port based TX VLAN insersion on or off.
2559 * The port identifier of the Ethernet device.
2561 * Port based TX VLAN identifier togeth with user priority.
2563 * Turn on or off the port based TX VLAN insertion.
2566 * - (0) if successful.
2567 * - negative if failed.
2569 int rte_eth_dev_set_vlan_pvid(uint8_t port_id, uint16_t pvid, int on);
2573 * Retrieve a burst of input packets from a receive queue of an Ethernet
2574 * device. The retrieved packets are stored in *rte_mbuf* structures whose
2575 * pointers are supplied in the *rx_pkts* array.
2577 * The rte_eth_rx_burst() function loops, parsing the RX ring of the
2578 * receive queue, up to *nb_pkts* packets, and for each completed RX
2579 * descriptor in the ring, it performs the following operations:
2581 * - Initialize the *rte_mbuf* data structure associated with the
2582 * RX descriptor according to the information provided by the NIC into
2583 * that RX descriptor.
2585 * - Store the *rte_mbuf* data structure into the next entry of the
2588 * - Replenish the RX descriptor with a new *rte_mbuf* buffer
2589 * allocated from the memory pool associated with the receive queue at
2590 * initialization time.
2592 * When retrieving an input packet that was scattered by the controller
2593 * into multiple receive descriptors, the rte_eth_rx_burst() function
2594 * appends the associated *rte_mbuf* buffers to the first buffer of the
2597 * The rte_eth_rx_burst() function returns the number of packets
2598 * actually retrieved, which is the number of *rte_mbuf* data structures
2599 * effectively supplied into the *rx_pkts* array.
2600 * A return value equal to *nb_pkts* indicates that the RX queue contained
2601 * at least *rx_pkts* packets, and this is likely to signify that other
2602 * received packets remain in the input queue. Applications implementing
2603 * a "retrieve as much received packets as possible" policy can check this
2604 * specific case and keep invoking the rte_eth_rx_burst() function until
2605 * a value less than *nb_pkts* is returned.
2607 * This receive method has the following advantages:
2609 * - It allows a run-to-completion network stack engine to retrieve and
2610 * to immediately process received packets in a fast burst-oriented
2611 * approach, avoiding the overhead of unnecessary intermediate packet
2612 * queue/dequeue operations.
2614 * - Conversely, it also allows an asynchronous-oriented processing
2615 * method to retrieve bursts of received packets and to immediately
2616 * queue them for further parallel processing by another logical core,
2617 * for instance. However, instead of having received packets being
2618 * individually queued by the driver, this approach allows the invoker
2619 * of the rte_eth_rx_burst() function to queue a burst of retrieved
2620 * packets at a time and therefore dramatically reduce the cost of
2621 * enqueue/dequeue operations per packet.
2623 * - It allows the rte_eth_rx_burst() function of the driver to take
2624 * advantage of burst-oriented hardware features (CPU cache,
2625 * prefetch instructions, and so on) to minimize the number of CPU
2626 * cycles per packet.
2628 * To summarize, the proposed receive API enables many
2629 * burst-oriented optimizations in both synchronous and asynchronous
2630 * packet processing environments with no overhead in both cases.
2632 * The rte_eth_rx_burst() function does not provide any error
2633 * notification to avoid the corresponding overhead. As a hint, the
2634 * upper-level application might check the status of the device link once
2635 * being systematically returned a 0 value for a given number of tries.
2638 * The port identifier of the Ethernet device.
2640 * The index of the receive queue from which to retrieve input packets.
2641 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
2642 * to rte_eth_dev_configure().
2644 * The address of an array of pointers to *rte_mbuf* structures that
2645 * must be large enough to store *nb_pkts* pointers in it.
2647 * The maximum number of packets to retrieve.
2649 * The number of packets actually retrieved, which is the number
2650 * of pointers to *rte_mbuf* structures effectively supplied to the
2653 static inline uint16_t
2654 rte_eth_rx_burst(uint8_t port_id, uint16_t queue_id,
2655 struct rte_mbuf **rx_pkts, const uint16_t nb_pkts)
2657 struct rte_eth_dev *dev = &rte_eth_devices[port_id];
2659 #ifdef RTE_LIBRTE_ETHDEV_DEBUG
2660 RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, 0);
2661 RTE_FUNC_PTR_OR_ERR_RET(*dev->rx_pkt_burst, 0);
2663 if (queue_id >= dev->data->nb_rx_queues) {
2664 RTE_PMD_DEBUG_TRACE("Invalid RX queue_id=%d\n", queue_id);
2668 int16_t nb_rx = (*dev->rx_pkt_burst)(dev->data->rx_queues[queue_id],
2671 #ifdef RTE_ETHDEV_RXTX_CALLBACKS
2672 struct rte_eth_rxtx_callback *cb = dev->post_rx_burst_cbs[queue_id];
2674 if (unlikely(cb != NULL)) {
2676 nb_rx = cb->fn.rx(port_id, queue_id, rx_pkts, nb_rx,
2677 nb_pkts, cb->param);
2679 } while (cb != NULL);
2687 * Get the number of used descriptors in a specific queue
2690 * The port identifier of the Ethernet device.
2692 * The queue id on the specific port.
2694 * The number of used descriptors in the specific queue, or:
2695 * (-EINVAL) if *port_id* is invalid
2696 * (-ENOTSUP) if the device does not support this function
2699 rte_eth_rx_queue_count(uint8_t port_id, uint16_t queue_id)
2701 struct rte_eth_dev *dev = &rte_eth_devices[port_id];
2702 RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -EINVAL);
2703 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->rx_queue_count, -ENOTSUP);
2704 return (*dev->dev_ops->rx_queue_count)(dev, queue_id);
2708 * Check if the DD bit of the specific RX descriptor in the queue has been set
2711 * The port identifier of the Ethernet device.
2713 * The queue id on the specific port.
2715 * The offset of the descriptor ID from tail.
2717 * - (1) if the specific DD bit is set.
2718 * - (0) if the specific DD bit is not set.
2719 * - (-ENODEV) if *port_id* invalid.
2720 * - (-ENOTSUP) if the device does not support this function
2723 rte_eth_rx_descriptor_done(uint8_t port_id, uint16_t queue_id, uint16_t offset)
2725 struct rte_eth_dev *dev = &rte_eth_devices[port_id];
2726 RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV);
2727 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->rx_descriptor_done, -ENOTSUP);
2728 return (*dev->dev_ops->rx_descriptor_done)( \
2729 dev->data->rx_queues[queue_id], offset);
2733 * Send a burst of output packets on a transmit queue of an Ethernet device.
2735 * The rte_eth_tx_burst() function is invoked to transmit output packets
2736 * on the output queue *queue_id* of the Ethernet device designated by its
2738 * The *nb_pkts* parameter is the number of packets to send which are
2739 * supplied in the *tx_pkts* array of *rte_mbuf* structures, each of them
2740 * allocated from a pool created with rte_pktmbuf_pool_create().
2741 * The rte_eth_tx_burst() function loops, sending *nb_pkts* packets,
2742 * up to the number of transmit descriptors available in the TX ring of the
2744 * For each packet to send, the rte_eth_tx_burst() function performs
2745 * the following operations:
2747 * - Pick up the next available descriptor in the transmit ring.
2749 * - Free the network buffer previously sent with that descriptor, if any.
2751 * - Initialize the transmit descriptor with the information provided
2752 * in the *rte_mbuf data structure.
2754 * In the case of a segmented packet composed of a list of *rte_mbuf* buffers,
2755 * the rte_eth_tx_burst() function uses several transmit descriptors
2758 * The rte_eth_tx_burst() function returns the number of packets it
2759 * actually sent. A return value equal to *nb_pkts* means that all packets
2760 * have been sent, and this is likely to signify that other output packets
2761 * could be immediately transmitted again. Applications that implement a
2762 * "send as many packets to transmit as possible" policy can check this
2763 * specific case and keep invoking the rte_eth_tx_burst() function until
2764 * a value less than *nb_pkts* is returned.
2766 * It is the responsibility of the rte_eth_tx_burst() function to
2767 * transparently free the memory buffers of packets previously sent.
2768 * This feature is driven by the *tx_free_thresh* value supplied to the
2769 * rte_eth_dev_configure() function at device configuration time.
2770 * When the number of free TX descriptors drops below this threshold, the
2771 * rte_eth_tx_burst() function must [attempt to] free the *rte_mbuf* buffers
2772 * of those packets whose transmission was effectively completed.
2775 * The port identifier of the Ethernet device.
2777 * The index of the transmit queue through which output packets must be
2779 * The value must be in the range [0, nb_tx_queue - 1] previously supplied
2780 * to rte_eth_dev_configure().
2782 * The address of an array of *nb_pkts* pointers to *rte_mbuf* structures
2783 * which contain the output packets.
2785 * The maximum number of packets to transmit.
2787 * The number of output packets actually stored in transmit descriptors of
2788 * the transmit ring. The return value can be less than the value of the
2789 * *tx_pkts* parameter when the transmit ring is full or has been filled up.
2791 static inline uint16_t
2792 rte_eth_tx_burst(uint8_t port_id, uint16_t queue_id,
2793 struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
2795 struct rte_eth_dev *dev = &rte_eth_devices[port_id];
2797 #ifdef RTE_LIBRTE_ETHDEV_DEBUG
2798 RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, 0);
2799 RTE_FUNC_PTR_OR_ERR_RET(*dev->tx_pkt_burst, 0);
2801 if (queue_id >= dev->data->nb_tx_queues) {
2802 RTE_PMD_DEBUG_TRACE("Invalid TX queue_id=%d\n", queue_id);
2807 #ifdef RTE_ETHDEV_RXTX_CALLBACKS
2808 struct rte_eth_rxtx_callback *cb = dev->pre_tx_burst_cbs[queue_id];
2810 if (unlikely(cb != NULL)) {
2812 nb_pkts = cb->fn.tx(port_id, queue_id, tx_pkts, nb_pkts,
2815 } while (cb != NULL);
2819 return (*dev->tx_pkt_burst)(dev->data->tx_queues[queue_id], tx_pkts, nb_pkts);
2822 typedef void (*buffer_tx_error_fn)(struct rte_mbuf **unsent, uint16_t count,
2826 * Structure used to buffer packets for future TX
2827 * Used by APIs rte_eth_tx_buffer and rte_eth_tx_buffer_flush
2829 struct rte_eth_dev_tx_buffer {
2830 buffer_tx_error_fn error_callback;
2831 void *error_userdata;
2832 uint16_t size; /**< Size of buffer for buffered tx */
2833 uint16_t length; /**< Number of packets in the array */
2834 struct rte_mbuf *pkts[];
2835 /**< Pending packets to be sent on explicit flush or when full */
2839 * Calculate the size of the tx buffer.
2842 * Number of stored packets.
2844 #define RTE_ETH_TX_BUFFER_SIZE(sz) \
2845 (sizeof(struct rte_eth_dev_tx_buffer) + (sz) * sizeof(struct rte_mbuf *))
2848 * Initialize default values for buffered transmitting
2851 * Tx buffer to be initialized.
2858 rte_eth_tx_buffer_init(struct rte_eth_dev_tx_buffer *buffer, uint16_t size);
2861 * Send any packets queued up for transmission on a port and HW queue
2863 * This causes an explicit flush of packets previously buffered via the
2864 * rte_eth_tx_buffer() function. It returns the number of packets successfully
2865 * sent to the NIC, and calls the error callback for any unsent packets. Unless
2866 * explicitly set up otherwise, the default callback simply frees the unsent
2867 * packets back to the owning mempool.
2870 * The port identifier of the Ethernet device.
2872 * The index of the transmit queue through which output packets must be
2874 * The value must be in the range [0, nb_tx_queue - 1] previously supplied
2875 * to rte_eth_dev_configure().
2877 * Buffer of packets to be transmit.
2879 * The number of packets successfully sent to the Ethernet device. The error
2880 * callback is called for any packets which could not be sent.
2882 static inline uint16_t
2883 rte_eth_tx_buffer_flush(uint8_t port_id, uint16_t queue_id,
2884 struct rte_eth_dev_tx_buffer *buffer)
2887 uint16_t to_send = buffer->length;
2892 sent = rte_eth_tx_burst(port_id, queue_id, buffer->pkts, to_send);
2896 /* All packets sent, or to be dealt with by callback below */
2897 if (unlikely(sent != to_send))
2898 buffer->error_callback(&buffer->pkts[sent], to_send - sent,
2899 buffer->error_userdata);
2905 * Buffer a single packet for future transmission on a port and queue
2907 * This function takes a single mbuf/packet and buffers it for later
2908 * transmission on the particular port and queue specified. Once the buffer is
2909 * full of packets, an attempt will be made to transmit all the buffered
2910 * packets. In case of error, where not all packets can be transmitted, a
2911 * callback is called with the unsent packets as a parameter. If no callback
2912 * is explicitly set up, the unsent packets are just freed back to the owning
2913 * mempool. The function returns the number of packets actually sent i.e.
2914 * 0 if no buffer flush occurred, otherwise the number of packets successfully
2918 * The port identifier of the Ethernet device.
2920 * The index of the transmit queue through which output packets must be
2922 * The value must be in the range [0, nb_tx_queue - 1] previously supplied
2923 * to rte_eth_dev_configure().
2925 * Buffer used to collect packets to be sent.
2927 * Pointer to the packet mbuf to be sent.
2929 * 0 = packet has been buffered for later transmission
2930 * N > 0 = packet has been buffered, and the buffer was subsequently flushed,
2931 * causing N packets to be sent, and the error callback to be called for
2934 static inline uint16_t __attribute__((always_inline))
2935 rte_eth_tx_buffer(uint8_t port_id, uint16_t queue_id,
2936 struct rte_eth_dev_tx_buffer *buffer, struct rte_mbuf *tx_pkt)
2938 buffer->pkts[buffer->length++] = tx_pkt;
2939 if (buffer->length < buffer->size)
2942 return rte_eth_tx_buffer_flush(port_id, queue_id, buffer);
2946 * Configure a callback for buffered packets which cannot be sent
2948 * Register a specific callback to be called when an attempt is made to send
2949 * all packets buffered on an ethernet port, but not all packets can
2950 * successfully be sent. The callback registered here will be called only
2951 * from calls to rte_eth_tx_buffer() and rte_eth_tx_buffer_flush() APIs.
2952 * The default callback configured for each queue by default just frees the
2953 * packets back to the calling mempool. If additional behaviour is required,
2954 * for example, to count dropped packets, or to retry transmission of packets
2955 * which cannot be sent, this function should be used to register a suitable
2956 * callback function to implement the desired behaviour.
2957 * The example callback "rte_eth_count_unsent_packet_callback()" is also
2958 * provided as reference.
2961 * The port identifier of the Ethernet device.
2963 * The function to be used as the callback.
2965 * Arbitrary parameter to be passed to the callback function
2967 * 0 on success, or -1 on error with rte_errno set appropriately
2970 rte_eth_tx_buffer_set_err_callback(struct rte_eth_dev_tx_buffer *buffer,
2971 buffer_tx_error_fn callback, void *userdata);
2974 * Callback function for silently dropping unsent buffered packets.
2976 * This function can be passed to rte_eth_tx_buffer_set_err_callback() to
2977 * adjust the default behavior when buffered packets cannot be sent. This
2978 * function drops any unsent packets silently and is used by tx buffered
2979 * operations as default behavior.
2981 * NOTE: this function should not be called directly, instead it should be used
2982 * as a callback for packet buffering.
2984 * NOTE: when configuring this function as a callback with
2985 * rte_eth_tx_buffer_set_err_callback(), the final, userdata parameter
2986 * should point to an uint64_t value.
2989 * The previously buffered packets which could not be sent
2991 * The number of unsent packets in the pkts array
2996 rte_eth_tx_buffer_drop_callback(struct rte_mbuf **pkts, uint16_t unsent,
3000 * Callback function for tracking unsent buffered packets.
3002 * This function can be passed to rte_eth_tx_buffer_set_err_callback() to
3003 * adjust the default behavior when buffered packets cannot be sent. This
3004 * function drops any unsent packets, but also updates a user-supplied counter
3005 * to track the overall number of packets dropped. The counter should be an
3006 * uint64_t variable.
3008 * NOTE: this function should not be called directly, instead it should be used
3009 * as a callback for packet buffering.
3011 * NOTE: when configuring this function as a callback with
3012 * rte_eth_tx_buffer_set_err_callback(), the final, userdata parameter
3013 * should point to an uint64_t value.
3016 * The previously buffered packets which could not be sent
3018 * The number of unsent packets in the pkts array
3020 * Pointer to an uint64_t value, which will be incremented by unsent
3023 rte_eth_tx_buffer_count_callback(struct rte_mbuf **pkts, uint16_t unsent,
3027 * The eth device event type for interrupt, and maybe others in the future.
3029 enum rte_eth_event_type {
3030 RTE_ETH_EVENT_UNKNOWN, /**< unknown event type */
3031 RTE_ETH_EVENT_INTR_LSC, /**< lsc interrupt event */
3032 RTE_ETH_EVENT_QUEUE_STATE,
3033 /**< queue state event (enabled/disabled) */
3034 RTE_ETH_EVENT_INTR_RESET,
3035 /**< reset interrupt event, sent to VF on PF reset */
3036 RTE_ETH_EVENT_VF_MBOX, /**< message from the VF received by PF */
3037 RTE_ETH_EVENT_MAX /**< max value of this enum */
3040 typedef void (*rte_eth_dev_cb_fn)(uint8_t port_id, \
3041 enum rte_eth_event_type event, void *cb_arg);
3042 /**< user application callback to be registered for interrupts */
3047 * Register a callback function for specific port id.
3054 * User supplied callback function to be called.
3056 * Pointer to the parameters for the registered callback.
3058 * The user data is overwritten in the case of RTE_ETH_EVENT_VF_MBOX.
3059 * This even occurs when a message from the VF is received by the PF.
3060 * The user data is overwritten with struct rte_pmd_ixgbe_mb_event_param.
3061 * This struct is defined in rte_pmd_ixgbe.h.
3064 * - On success, zero.
3065 * - On failure, a negative value.
3067 int rte_eth_dev_callback_register(uint8_t port_id,
3068 enum rte_eth_event_type event,
3069 rte_eth_dev_cb_fn cb_fn, void *cb_arg);
3072 * Unregister a callback function for specific port id.
3079 * User supplied callback function to be called.
3081 * Pointer to the parameters for the registered callback. -1 means to
3082 * remove all for the same callback address and same event.
3085 * - On success, zero.
3086 * - On failure, a negative value.
3088 int rte_eth_dev_callback_unregister(uint8_t port_id,
3089 enum rte_eth_event_type event,
3090 rte_eth_dev_cb_fn cb_fn, void *cb_arg);
3093 * @internal Executes all the user application registered callbacks for
3094 * the specific device. It is for DPDK internal user only. User
3095 * application should not call it directly.
3098 * Pointer to struct rte_eth_dev.
3100 * Eth device interrupt event type.
3102 * Update callback parameter to pass data back to user application.
3103 * This allows the user application to decide if a particular function
3104 * is permitted or not.
3109 void _rte_eth_dev_callback_process(struct rte_eth_dev *dev,
3110 enum rte_eth_event_type event, void *cb_arg);
3113 * When there is no rx packet coming in Rx Queue for a long time, we can
3114 * sleep lcore related to RX Queue for power saving, and enable rx interrupt
3115 * to be triggered when rx packect arrives.
3117 * The rte_eth_dev_rx_intr_enable() function enables rx queue
3118 * interrupt on specific rx queue of a port.
3121 * The port identifier of the Ethernet device.
3123 * The index of the receive queue from which to retrieve input packets.
3124 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
3125 * to rte_eth_dev_configure().
3127 * - (0) if successful.
3128 * - (-ENOTSUP) if underlying hardware OR driver doesn't support
3130 * - (-ENODEV) if *port_id* invalid.
3132 int rte_eth_dev_rx_intr_enable(uint8_t port_id, uint16_t queue_id);
3135 * When lcore wakes up from rx interrupt indicating packet coming, disable rx
3136 * interrupt and returns to polling mode.
3138 * The rte_eth_dev_rx_intr_disable() function disables rx queue
3139 * interrupt on specific rx queue of a port.
3142 * The port identifier of the Ethernet device.
3144 * The index of the receive queue from which to retrieve input packets.
3145 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
3146 * to rte_eth_dev_configure().
3148 * - (0) if successful.
3149 * - (-ENOTSUP) if underlying hardware OR driver doesn't support
3151 * - (-ENODEV) if *port_id* invalid.
3153 int rte_eth_dev_rx_intr_disable(uint8_t port_id, uint16_t queue_id);
3156 * RX Interrupt control per port.
3159 * The port identifier of the Ethernet device.
3161 * Epoll instance fd which the intr vector associated to.
3162 * Using RTE_EPOLL_PER_THREAD allows to use per thread epoll instance.
3164 * The operation be performed for the vector.
3165 * Operation type of {RTE_INTR_EVENT_ADD, RTE_INTR_EVENT_DEL}.
3169 * - On success, zero.
3170 * - On failure, a negative value.
3172 int rte_eth_dev_rx_intr_ctl(uint8_t port_id, int epfd, int op, void *data);
3175 * RX Interrupt control per queue.
3178 * The port identifier of the Ethernet device.
3180 * The index of the receive queue from which to retrieve input packets.
3181 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
3182 * to rte_eth_dev_configure().
3184 * Epoll instance fd which the intr vector associated to.
3185 * Using RTE_EPOLL_PER_THREAD allows to use per thread epoll instance.
3187 * The operation be performed for the vector.
3188 * Operation type of {RTE_INTR_EVENT_ADD, RTE_INTR_EVENT_DEL}.
3192 * - On success, zero.
3193 * - On failure, a negative value.
3195 int rte_eth_dev_rx_intr_ctl_q(uint8_t port_id, uint16_t queue_id,
3196 int epfd, int op, void *data);
3199 * Turn on the LED on the Ethernet device.
3200 * This function turns on the LED on the Ethernet device.
3203 * The port identifier of the Ethernet device.
3205 * - (0) if successful.
3206 * - (-ENOTSUP) if underlying hardware OR driver doesn't support
3208 * - (-ENODEV) if *port_id* invalid.
3210 int rte_eth_led_on(uint8_t port_id);
3213 * Turn off the LED on the Ethernet device.
3214 * This function turns off the LED on the Ethernet device.
3217 * The port identifier of the Ethernet device.
3219 * - (0) if successful.
3220 * - (-ENOTSUP) if underlying hardware OR driver doesn't support
3222 * - (-ENODEV) if *port_id* invalid.
3224 int rte_eth_led_off(uint8_t port_id);
3227 * Get current status of the Ethernet link flow control for Ethernet device
3230 * The port identifier of the Ethernet device.
3232 * The pointer to the structure where to store the flow control parameters.
3234 * - (0) if successful.
3235 * - (-ENOTSUP) if hardware doesn't support flow control.
3236 * - (-ENODEV) if *port_id* invalid.
3238 int rte_eth_dev_flow_ctrl_get(uint8_t port_id,
3239 struct rte_eth_fc_conf *fc_conf);
3242 * Configure the Ethernet link flow control for Ethernet device
3245 * The port identifier of the Ethernet device.
3247 * The pointer to the structure of the flow control parameters.
3249 * - (0) if successful.
3250 * - (-ENOTSUP) if hardware doesn't support flow control mode.
3251 * - (-ENODEV) if *port_id* invalid.
3252 * - (-EINVAL) if bad parameter
3253 * - (-EIO) if flow control setup failure
3255 int rte_eth_dev_flow_ctrl_set(uint8_t port_id,
3256 struct rte_eth_fc_conf *fc_conf);
3259 * Configure the Ethernet priority flow control under DCB environment
3260 * for Ethernet device.
3263 * The port identifier of the Ethernet device.
3265 * The pointer to the structure of the priority flow control parameters.
3267 * - (0) if successful.
3268 * - (-ENOTSUP) if hardware doesn't support priority flow control mode.
3269 * - (-ENODEV) if *port_id* invalid.
3270 * - (-EINVAL) if bad parameter
3271 * - (-EIO) if flow control setup failure
3273 int rte_eth_dev_priority_flow_ctrl_set(uint8_t port_id,
3274 struct rte_eth_pfc_conf *pfc_conf);
3277 * Add a MAC address to an internal array of addresses used to enable whitelist
3278 * filtering to accept packets only if the destination MAC address matches.
3281 * The port identifier of the Ethernet device.
3283 * The MAC address to add.
3285 * VMDq pool index to associate address with (if VMDq is enabled). If VMDq is
3286 * not enabled, this should be set to 0.
3288 * - (0) if successfully added or *mac_addr" was already added.
3289 * - (-ENOTSUP) if hardware doesn't support this feature.
3290 * - (-ENODEV) if *port* is invalid.
3291 * - (-ENOSPC) if no more MAC addresses can be added.
3292 * - (-EINVAL) if MAC address is invalid.
3294 int rte_eth_dev_mac_addr_add(uint8_t port, struct ether_addr *mac_addr,
3298 * Remove a MAC address from the internal array of addresses.
3301 * The port identifier of the Ethernet device.
3303 * MAC address to remove.
3305 * - (0) if successful, or *mac_addr* didn't exist.
3306 * - (-ENOTSUP) if hardware doesn't support.
3307 * - (-ENODEV) if *port* invalid.
3308 * - (-EADDRINUSE) if attempting to remove the default MAC address
3310 int rte_eth_dev_mac_addr_remove(uint8_t port, struct ether_addr *mac_addr);
3313 * Set the default MAC address.
3316 * The port identifier of the Ethernet device.
3318 * New default MAC address.
3320 * - (0) if successful, or *mac_addr* didn't exist.
3321 * - (-ENOTSUP) if hardware doesn't support.
3322 * - (-ENODEV) if *port* invalid.
3323 * - (-EINVAL) if MAC address is invalid.
3325 int rte_eth_dev_default_mac_addr_set(uint8_t port, struct ether_addr *mac_addr);
3329 * Update Redirection Table(RETA) of Receive Side Scaling of Ethernet device.
3332 * The port identifier of the Ethernet device.
3336 * Redirection table size. The table size can be queried by
3337 * rte_eth_dev_info_get().
3339 * - (0) if successful.
3340 * - (-ENOTSUP) if hardware doesn't support.
3341 * - (-EINVAL) if bad parameter.
3343 int rte_eth_dev_rss_reta_update(uint8_t port,
3344 struct rte_eth_rss_reta_entry64 *reta_conf,
3345 uint16_t reta_size);
3348 * Query Redirection Table(RETA) of Receive Side Scaling of Ethernet device.
3351 * The port identifier of the Ethernet device.
3355 * Redirection table size. The table size can be queried by
3356 * rte_eth_dev_info_get().
3358 * - (0) if successful.
3359 * - (-ENOTSUP) if hardware doesn't support.
3360 * - (-EINVAL) if bad parameter.
3362 int rte_eth_dev_rss_reta_query(uint8_t port,
3363 struct rte_eth_rss_reta_entry64 *reta_conf,
3364 uint16_t reta_size);
3367 * Updates unicast hash table for receiving packet with the given destination
3368 * MAC address, and the packet is routed to all VFs for which the RX mode is
3369 * accept packets that match the unicast hash table.
3372 * The port identifier of the Ethernet device.
3374 * Unicast MAC address.
3376 * 1 - Set an unicast hash bit for receiving packets with the MAC address.
3377 * 0 - Clear an unicast hash bit.
3379 * - (0) if successful.
3380 * - (-ENOTSUP) if hardware doesn't support.
3381 * - (-ENODEV) if *port_id* invalid.
3382 * - (-EINVAL) if bad parameter.
3384 int rte_eth_dev_uc_hash_table_set(uint8_t port,struct ether_addr *addr,
3388 * Updates all unicast hash bitmaps for receiving packet with any Unicast
3389 * Ethernet MAC addresses,the packet is routed to all VFs for which the RX
3390 * mode is accept packets that match the unicast hash table.
3393 * The port identifier of the Ethernet device.
3395 * 1 - Set all unicast hash bitmaps for receiving all the Ethernet
3397 * 0 - Clear all unicast hash bitmaps
3399 * - (0) if successful.
3400 * - (-ENOTSUP) if hardware doesn't support.
3401 * - (-ENODEV) if *port_id* invalid.
3402 * - (-EINVAL) if bad parameter.
3404 int rte_eth_dev_uc_all_hash_table_set(uint8_t port,uint8_t on);
3407 * Set RX L2 Filtering mode of a VF of an Ethernet device.
3410 * The port identifier of the Ethernet device.
3414 * The RX mode mask, which is one or more of accepting Untagged Packets,
3415 * packets that match the PFUTA table, Broadcast and Multicast Promiscuous.
3416 * ETH_VMDQ_ACCEPT_UNTAG,ETH_VMDQ_ACCEPT_HASH_UC,
3417 * ETH_VMDQ_ACCEPT_BROADCAST and ETH_VMDQ_ACCEPT_MULTICAST will be used
3420 * 1 - Enable a VF RX mode.
3421 * 0 - Disable a VF RX mode.
3423 * - (0) if successful.
3424 * - (-ENOTSUP) if hardware doesn't support.
3425 * - (-ENOTSUP) if hardware doesn't support.
3426 * - (-EINVAL) if bad parameter.
3428 int rte_eth_dev_set_vf_rxmode(uint8_t port, uint16_t vf, uint16_t rx_mode,
3432 * Enable or disable a VF traffic transmit of the Ethernet device.
3435 * The port identifier of the Ethernet device.
3439 * 1 - Enable a VF traffic transmit.
3440 * 0 - Disable a VF traffic transmit.
3442 * - (0) if successful.
3443 * - (-ENODEV) if *port_id* invalid.
3444 * - (-ENOTSUP) if hardware doesn't support.
3445 * - (-EINVAL) if bad parameter.
3448 rte_eth_dev_set_vf_tx(uint8_t port,uint16_t vf, uint8_t on);
3451 * Enable or disable a VF traffic receive of an Ethernet device.
3454 * The port identifier of the Ethernet device.
3458 * 1 - Enable a VF traffic receive.
3459 * 0 - Disable a VF traffic receive.
3461 * - (0) if successful.
3462 * - (-ENOTSUP) if hardware doesn't support.
3463 * - (-ENODEV) if *port_id* invalid.
3464 * - (-EINVAL) if bad parameter.
3467 rte_eth_dev_set_vf_rx(uint8_t port,uint16_t vf, uint8_t on);
3470 * Enable/Disable hardware VF VLAN filtering by an Ethernet device of
3471 * received VLAN packets tagged with a given VLAN Tag Identifier.
3474 * The port identifier of the Ethernet device.
3476 * The VLAN Tag Identifier whose filtering must be enabled or disabled.
3478 * Bitmap listing which VFs participate in the VLAN filtering.
3480 * 1 - Enable VFs VLAN filtering.
3481 * 0 - Disable VFs VLAN filtering.
3483 * - (0) if successful.
3484 * - (-ENOTSUP) if hardware doesn't support.
3485 * - (-ENODEV) if *port_id* invalid.
3486 * - (-EINVAL) if bad parameter.
3489 rte_eth_dev_set_vf_vlan_filter(uint8_t port, uint16_t vlan_id,
3494 * Set a traffic mirroring rule on an Ethernet device
3497 * The port identifier of the Ethernet device.
3498 * @param mirror_conf
3499 * The pointer to the traffic mirroring structure describing the mirroring rule.
3500 * The *rte_eth_vm_mirror_conf* structure includes the type of mirroring rule,
3501 * destination pool and the value of rule if enable vlan or pool mirroring.
3504 * The index of traffic mirroring rule, we support four separated rules.
3506 * 1 - Enable a mirroring rule.
3507 * 0 - Disable a mirroring rule.
3509 * - (0) if successful.
3510 * - (-ENOTSUP) if hardware doesn't support this feature.
3511 * - (-ENODEV) if *port_id* invalid.
3512 * - (-EINVAL) if the mr_conf information is not correct.
3514 int rte_eth_mirror_rule_set(uint8_t port_id,
3515 struct rte_eth_mirror_conf *mirror_conf,
3520 * Reset a traffic mirroring rule on an Ethernet device.
3523 * The port identifier of the Ethernet device.
3525 * The index of traffic mirroring rule, we support four separated rules.
3527 * - (0) if successful.
3528 * - (-ENOTSUP) if hardware doesn't support this feature.
3529 * - (-ENODEV) if *port_id* invalid.
3530 * - (-EINVAL) if bad parameter.
3532 int rte_eth_mirror_rule_reset(uint8_t port_id,
3536 * Set the rate limitation for a queue on an Ethernet device.
3539 * The port identifier of the Ethernet device.
3543 * The tx rate in Mbps. Allocated from the total port link speed.
3545 * - (0) if successful.
3546 * - (-ENOTSUP) if hardware doesn't support this feature.
3547 * - (-ENODEV) if *port_id* invalid.
3548 * - (-EINVAL) if bad parameter.
3550 int rte_eth_set_queue_rate_limit(uint8_t port_id, uint16_t queue_idx,
3554 * Set the rate limitation for a vf on an Ethernet device.
3557 * The port identifier of the Ethernet device.
3561 * The tx rate allocated from the total link speed for this VF id.
3563 * The queue mask which need to set the rate.
3565 * - (0) if successful.
3566 * - (-ENOTSUP) if hardware doesn't support this feature.
3567 * - (-ENODEV) if *port_id* invalid.
3568 * - (-EINVAL) if bad parameter.
3570 int rte_eth_set_vf_rate_limit(uint8_t port_id, uint16_t vf,
3571 uint16_t tx_rate, uint64_t q_msk);
3574 * Initialize bypass logic. This function needs to be called before
3575 * executing any other bypass API.
3578 * The port identifier of the Ethernet device.
3580 * - (0) if successful.
3581 * - (-ENOTSUP) if hardware doesn't support.
3582 * - (-EINVAL) if bad parameter.
3584 int rte_eth_dev_bypass_init(uint8_t port);
3587 * Return bypass state.
3590 * The port identifier of the Ethernet device.
3592 * The return bypass state.
3595 * - (3) Isolate mode
3597 * - (0) if successful.
3598 * - (-ENOTSUP) if hardware doesn't support.
3599 * - (-EINVAL) if bad parameter.
3601 int rte_eth_dev_bypass_state_show(uint8_t port, uint32_t *state);
3607 * The port identifier of the Ethernet device.
3609 * The current bypass state.
3612 * - (3) Isolate mode
3614 * - (0) if successful.
3615 * - (-ENOTSUP) if hardware doesn't support.
3616 * - (-EINVAL) if bad parameter.
3618 int rte_eth_dev_bypass_state_set(uint8_t port, uint32_t *new_state);
3621 * Return bypass state when given event occurs.
3624 * The port identifier of the Ethernet device.
3627 * - (1) Main power on (power button is pushed)
3628 * - (2) Auxiliary power on (power supply is being plugged)
3629 * - (3) Main power off (system shutdown and power supply is left plugged in)
3630 * - (4) Auxiliary power off (power supply is being unplugged)
3631 * - (5) Display or set the watchdog timer
3633 * The bypass state when given event occurred.
3636 * - (3) Isolate mode
3638 * - (0) if successful.
3639 * - (-ENOTSUP) if hardware doesn't support.
3640 * - (-EINVAL) if bad parameter.
3642 int rte_eth_dev_bypass_event_show(uint8_t port, uint32_t event, uint32_t *state);
3645 * Set bypass state when given event occurs.
3648 * The port identifier of the Ethernet device.
3651 * - (1) Main power on (power button is pushed)
3652 * - (2) Auxiliary power on (power supply is being plugged)
3653 * - (3) Main power off (system shutdown and power supply is left plugged in)
3654 * - (4) Auxiliary power off (power supply is being unplugged)
3655 * - (5) Display or set the watchdog timer
3657 * The assigned state when given event occurs.
3660 * - (3) Isolate mode
3662 * - (0) if successful.
3663 * - (-ENOTSUP) if hardware doesn't support.
3664 * - (-EINVAL) if bad parameter.
3666 int rte_eth_dev_bypass_event_store(uint8_t port, uint32_t event, uint32_t state);
3669 * Set bypass watchdog timeout count.
3672 * The port identifier of the Ethernet device.
3674 * The timeout to be set.
3675 * - (0) 0 seconds (timer is off)
3684 * - (0) if successful.
3685 * - (-ENOTSUP) if hardware doesn't support.
3686 * - (-EINVAL) if bad parameter.
3688 int rte_eth_dev_wd_timeout_store(uint8_t port, uint32_t timeout);
3691 * Get bypass firmware version.
3694 * The port identifier of the Ethernet device.
3696 * The firmware version
3698 * - (0) if successful.
3699 * - (-ENOTSUP) if hardware doesn't support.
3700 * - (-EINVAL) if bad parameter.
3702 int rte_eth_dev_bypass_ver_show(uint8_t port, uint32_t *ver);
3705 * Return bypass watchdog timeout in seconds
3708 * The port identifier of the Ethernet device.
3710 * The return watchdog timeout. "0" represents timer expired
3711 * - (0) 0 seconds (timer is off)
3720 * - (0) if successful.
3721 * - (-ENOTSUP) if hardware doesn't support.
3722 * - (-EINVAL) if bad parameter.
3724 int rte_eth_dev_bypass_wd_timeout_show(uint8_t port, uint32_t *wd_timeout);
3727 * Reset bypass watchdog timer
3730 * The port identifier of the Ethernet device.
3732 * - (0) if successful.
3733 * - (-ENOTSUP) if hardware doesn't support.
3734 * - (-EINVAL) if bad parameter.
3736 int rte_eth_dev_bypass_wd_reset(uint8_t port);
3739 * Configuration of Receive Side Scaling hash computation of Ethernet device.
3742 * The port identifier of the Ethernet device.
3744 * The new configuration to use for RSS hash computation on the port.
3746 * - (0) if successful.
3747 * - (-ENODEV) if port identifier is invalid.
3748 * - (-ENOTSUP) if hardware doesn't support.
3749 * - (-EINVAL) if bad parameter.
3751 int rte_eth_dev_rss_hash_update(uint8_t port_id,
3752 struct rte_eth_rss_conf *rss_conf);
3755 * Retrieve current configuration of Receive Side Scaling hash computation
3756 * of Ethernet device.
3759 * The port identifier of the Ethernet device.
3761 * Where to store the current RSS hash configuration of the Ethernet device.
3763 * - (0) if successful.
3764 * - (-ENODEV) if port identifier is invalid.
3765 * - (-ENOTSUP) if hardware doesn't support RSS.
3768 rte_eth_dev_rss_hash_conf_get(uint8_t port_id,
3769 struct rte_eth_rss_conf *rss_conf);
3772 * Add UDP tunneling port for a specific type of tunnel.
3773 * The packets with this UDP port will be identified as this type of tunnel.
3774 * Before enabling any offloading function for a tunnel, users can call this API
3775 * to change or add more UDP port for the tunnel. So the offloading function
3776 * can take effect on the packets with the sepcific UDP port.
3779 * The port identifier of the Ethernet device.
3781 * UDP tunneling configuration.
3784 * - (0) if successful.
3785 * - (-ENODEV) if port identifier is invalid.
3786 * - (-ENOTSUP) if hardware doesn't support tunnel type.
3789 rte_eth_dev_udp_tunnel_port_add(uint8_t port_id,
3790 struct rte_eth_udp_tunnel *tunnel_udp);
3793 * Delete UDP tunneling port a specific type of tunnel.
3794 * The packets with this UDP port will not be identified as this type of tunnel
3796 * Before enabling any offloading function for a tunnel, users can call this API
3797 * to delete a UDP port for the tunnel. So the offloading function will not take
3798 * effect on the packets with the sepcific UDP port.
3801 * The port identifier of the Ethernet device.
3803 * UDP tunneling configuration.
3806 * - (0) if successful.
3807 * - (-ENODEV) if port identifier is invalid.
3808 * - (-ENOTSUP) if hardware doesn't support tunnel type.
3811 rte_eth_dev_udp_tunnel_port_delete(uint8_t port_id,
3812 struct rte_eth_udp_tunnel *tunnel_udp);
3815 * Check whether the filter type is supported on an Ethernet device.
3816 * All the supported filter types are defined in 'rte_eth_ctrl.h'.
3819 * The port identifier of the Ethernet device.
3820 * @param filter_type
3823 * - (0) if successful.
3824 * - (-ENOTSUP) if hardware doesn't support this filter type.
3825 * - (-ENODEV) if *port_id* invalid.
3827 int rte_eth_dev_filter_supported(uint8_t port_id, enum rte_filter_type filter_type);
3830 * Take operations to assigned filter type on an Ethernet device.
3831 * All the supported operations and filter types are defined in 'rte_eth_ctrl.h'.
3834 * The port identifier of the Ethernet device.
3835 * @param filter_type
3838 * Type of operation.
3840 * A pointer to arguments defined specifically for the operation.
3842 * - (0) if successful.
3843 * - (-ENOTSUP) if hardware doesn't support.
3844 * - (-ENODEV) if *port_id* invalid.
3845 * - others depends on the specific operations implementation.
3847 int rte_eth_dev_filter_ctrl(uint8_t port_id, enum rte_filter_type filter_type,
3848 enum rte_filter_op filter_op, void *arg);
3851 * Get DCB information on an Ethernet device.
3854 * The port identifier of the Ethernet device.
3858 * - (0) if successful.
3859 * - (-ENODEV) if port identifier is invalid.
3860 * - (-ENOTSUP) if hardware doesn't support.
3862 int rte_eth_dev_get_dcb_info(uint8_t port_id,
3863 struct rte_eth_dcb_info *dcb_info);
3866 * Add a callback to be called on packet RX on a given port and queue.
3868 * This API configures a function to be called for each burst of
3869 * packets received on a given NIC port queue. The return value is a pointer
3870 * that can be used to later remove the callback using
3871 * rte_eth_remove_rx_callback().
3873 * Multiple functions are called in the order that they are added.
3876 * The port identifier of the Ethernet device.
3878 * The queue on the Ethernet device on which the callback is to be added.
3880 * The callback function
3882 * A generic pointer parameter which will be passed to each invocation of the
3883 * callback function on this port and queue.
3887 * On success, a pointer value which can later be used to remove the callback.
3889 void *rte_eth_add_rx_callback(uint8_t port_id, uint16_t queue_id,
3890 rte_rx_callback_fn fn, void *user_param);
3893 * Add a callback that must be called first on packet RX on a given port
3896 * This API configures a first function to be called for each burst of
3897 * packets received on a given NIC port queue. The return value is a pointer
3898 * that can be used to later remove the callback using
3899 * rte_eth_remove_rx_callback().
3901 * Multiple functions are called in the order that they are added.
3904 * The port identifier of the Ethernet device.
3906 * The queue on the Ethernet device on which the callback is to be added.
3908 * The callback function
3910 * A generic pointer parameter which will be passed to each invocation of the
3911 * callback function on this port and queue.
3915 * On success, a pointer value which can later be used to remove the callback.
3917 void *rte_eth_add_first_rx_callback(uint8_t port_id, uint16_t queue_id,
3918 rte_rx_callback_fn fn, void *user_param);
3921 * Add a callback to be called on packet TX on a given port and queue.
3923 * This API configures a function to be called for each burst of
3924 * packets sent on a given NIC port queue. The return value is a pointer
3925 * that can be used to later remove the callback using
3926 * rte_eth_remove_tx_callback().
3928 * Multiple functions are called in the order that they are added.
3931 * The port identifier of the Ethernet device.
3933 * The queue on the Ethernet device on which the callback is to be added.
3935 * The callback function
3937 * A generic pointer parameter which will be passed to each invocation of the
3938 * callback function on this port and queue.
3942 * On success, a pointer value which can later be used to remove the callback.
3944 void *rte_eth_add_tx_callback(uint8_t port_id, uint16_t queue_id,
3945 rte_tx_callback_fn fn, void *user_param);
3948 * Remove an RX packet callback from a given port and queue.
3950 * This function is used to removed callbacks that were added to a NIC port
3951 * queue using rte_eth_add_rx_callback().
3953 * Note: the callback is removed from the callback list but it isn't freed
3954 * since the it may still be in use. The memory for the callback can be
3955 * subsequently freed back by the application by calling rte_free():
3957 * - Immediately - if the port is stopped, or the user knows that no
3958 * callbacks are in flight e.g. if called from the thread doing RX/TX
3961 * - After a short delay - where the delay is sufficient to allow any
3962 * in-flight callbacks to complete.
3965 * The port identifier of the Ethernet device.
3967 * The queue on the Ethernet device from which the callback is to be removed.
3969 * User supplied callback created via rte_eth_add_rx_callback().
3972 * - 0: Success. Callback was removed.
3973 * - -ENOTSUP: Callback support is not available.
3974 * - -EINVAL: The port_id or the queue_id is out of range, or the callback
3975 * is NULL or not found for the port/queue.
3977 int rte_eth_remove_rx_callback(uint8_t port_id, uint16_t queue_id,
3978 struct rte_eth_rxtx_callback *user_cb);
3981 * Remove a TX packet callback from a given port and queue.
3983 * This function is used to removed callbacks that were added to a NIC port
3984 * queue using rte_eth_add_tx_callback().
3986 * Note: the callback is removed from the callback list but it isn't freed
3987 * since the it may still be in use. The memory for the callback can be
3988 * subsequently freed back by the application by calling rte_free():
3990 * - Immediately - if the port is stopped, or the user knows that no
3991 * callbacks are in flight e.g. if called from the thread doing RX/TX
3994 * - After a short delay - where the delay is sufficient to allow any
3995 * in-flight callbacks to complete.
3998 * The port identifier of the Ethernet device.
4000 * The queue on the Ethernet device from which the callback is to be removed.
4002 * User supplied callback created via rte_eth_add_tx_callback().
4005 * - 0: Success. Callback was removed.
4006 * - -ENOTSUP: Callback support is not available.
4007 * - -EINVAL: The port_id or the queue_id is out of range, or the callback
4008 * is NULL or not found for the port/queue.
4010 int rte_eth_remove_tx_callback(uint8_t port_id, uint16_t queue_id,
4011 struct rte_eth_rxtx_callback *user_cb);
4014 * Retrieve information about given port's RX queue.
4017 * The port identifier of the Ethernet device.
4019 * The RX queue on the Ethernet device for which information
4020 * will be retrieved.
4022 * A pointer to a structure of type *rte_eth_rxq_info_info* to be filled with
4023 * the information of the Ethernet device.
4027 * - -ENOTSUP: routine is not supported by the device PMD.
4028 * - -EINVAL: The port_id or the queue_id is out of range.
4030 int rte_eth_rx_queue_info_get(uint8_t port_id, uint16_t queue_id,
4031 struct rte_eth_rxq_info *qinfo);
4034 * Retrieve information about given port's TX queue.
4037 * The port identifier of the Ethernet device.
4039 * The TX queue on the Ethernet device for which information
4040 * will be retrieved.
4042 * A pointer to a structure of type *rte_eth_txq_info_info* to be filled with
4043 * the information of the Ethernet device.
4047 * - -ENOTSUP: routine is not supported by the device PMD.
4048 * - -EINVAL: The port_id or the queue_id is out of range.
4050 int rte_eth_tx_queue_info_get(uint8_t port_id, uint16_t queue_id,
4051 struct rte_eth_txq_info *qinfo);
4054 * Retrieve device registers and register attributes (number of registers and
4058 * The port identifier of the Ethernet device.
4060 * Pointer to rte_dev_reg_info structure to fill in. If info->data is
4061 * NULL the function fills in the width and length fields. If non-NULL
4062 * the registers are put into the buffer pointed at by the data field.
4064 * - (0) if successful.
4065 * - (-ENOTSUP) if hardware doesn't support.
4066 * - (-ENODEV) if *port_id* invalid.
4067 * - others depends on the specific operations implementation.
4069 int rte_eth_dev_get_reg_info(uint8_t port_id, struct rte_dev_reg_info *info);
4072 * Retrieve size of device EEPROM
4075 * The port identifier of the Ethernet device.
4077 * - (>=0) EEPROM size if successful.
4078 * - (-ENOTSUP) if hardware doesn't support.
4079 * - (-ENODEV) if *port_id* invalid.
4080 * - others depends on the specific operations implementation.
4082 int rte_eth_dev_get_eeprom_length(uint8_t port_id);
4085 * Retrieve EEPROM and EEPROM attribute
4088 * The port identifier of the Ethernet device.
4090 * The template includes buffer for return EEPROM data and
4091 * EEPROM attributes to be filled.
4093 * - (0) if successful.
4094 * - (-ENOTSUP) if hardware doesn't support.
4095 * - (-ENODEV) if *port_id* invalid.
4096 * - others depends on the specific operations implementation.
4098 int rte_eth_dev_get_eeprom(uint8_t port_id, struct rte_dev_eeprom_info *info);
4101 * Program EEPROM with provided data
4104 * The port identifier of the Ethernet device.
4106 * The template includes EEPROM data for programming and
4107 * EEPROM attributes to be filled
4109 * - (0) if successful.
4110 * - (-ENOTSUP) if hardware doesn't support.
4111 * - (-ENODEV) if *port_id* invalid.
4112 * - others depends on the specific operations implementation.
4114 int rte_eth_dev_set_eeprom(uint8_t port_id, struct rte_dev_eeprom_info *info);
4117 * Set the list of multicast addresses to filter on an Ethernet device.
4120 * The port identifier of the Ethernet device.
4121 * @param mc_addr_set
4122 * The array of multicast addresses to set. Equal to NULL when the function
4123 * is invoked to flush the set of filtered addresses.
4125 * The number of multicast addresses in the *mc_addr_set* array. Equal to 0
4126 * when the function is invoked to flush the set of filtered addresses.
4128 * - (0) if successful.
4129 * - (-ENODEV) if *port_id* invalid.
4130 * - (-ENOTSUP) if PMD of *port_id* doesn't support multicast filtering.
4131 * - (-ENOSPC) if *port_id* has not enough multicast filtering resources.
4133 int rte_eth_dev_set_mc_addr_list(uint8_t port_id,
4134 struct ether_addr *mc_addr_set,
4135 uint32_t nb_mc_addr);
4138 * Enable IEEE1588/802.1AS timestamping for an Ethernet device.
4141 * The port identifier of the Ethernet device.
4145 * - -ENODEV: The port ID is invalid.
4146 * - -ENOTSUP: The function is not supported by the Ethernet driver.
4148 int rte_eth_timesync_enable(uint8_t port_id);
4151 * Disable IEEE1588/802.1AS timestamping for an Ethernet device.
4154 * The port identifier of the Ethernet device.
4158 * - -ENODEV: The port ID is invalid.
4159 * - -ENOTSUP: The function is not supported by the Ethernet driver.
4161 int rte_eth_timesync_disable(uint8_t port_id);
4164 * Read an IEEE1588/802.1AS RX timestamp from an Ethernet device.
4167 * The port identifier of the Ethernet device.
4169 * Pointer to the timestamp struct.
4171 * Device specific flags. Used to pass the RX timesync register index to
4172 * i40e. Unused in igb/ixgbe, pass 0 instead.
4176 * - -EINVAL: No timestamp is available.
4177 * - -ENODEV: The port ID is invalid.
4178 * - -ENOTSUP: The function is not supported by the Ethernet driver.
4180 int rte_eth_timesync_read_rx_timestamp(uint8_t port_id,
4181 struct timespec *timestamp, uint32_t flags);
4184 * Read an IEEE1588/802.1AS TX timestamp from an Ethernet device.
4187 * The port identifier of the Ethernet device.
4189 * Pointer to the timestamp struct.
4193 * - -EINVAL: No timestamp is available.
4194 * - -ENODEV: The port ID is invalid.
4195 * - -ENOTSUP: The function is not supported by the Ethernet driver.
4197 int rte_eth_timesync_read_tx_timestamp(uint8_t port_id,
4198 struct timespec *timestamp);
4201 * Adjust the timesync clock on an Ethernet device.
4203 * This is usually used in conjunction with other Ethdev timesync functions to
4204 * synchronize the device time using the IEEE1588/802.1AS protocol.
4207 * The port identifier of the Ethernet device.
4209 * The adjustment in nanoseconds.
4213 * - -ENODEV: The port ID is invalid.
4214 * - -ENOTSUP: The function is not supported by the Ethernet driver.
4216 int rte_eth_timesync_adjust_time(uint8_t port_id, int64_t delta);
4219 * Read the time from the timesync clock on an Ethernet device.
4221 * This is usually used in conjunction with other Ethdev timesync functions to
4222 * synchronize the device time using the IEEE1588/802.1AS protocol.
4225 * The port identifier of the Ethernet device.
4227 * Pointer to the timespec struct that holds the time.
4232 int rte_eth_timesync_read_time(uint8_t port_id, struct timespec *time);
4235 * Set the time of the timesync clock on an Ethernet device.
4237 * This is usually used in conjunction with other Ethdev timesync functions to
4238 * synchronize the device time using the IEEE1588/802.1AS protocol.
4241 * The port identifier of the Ethernet device.
4243 * Pointer to the timespec struct that holds the time.
4247 * - -EINVAL: No timestamp is available.
4248 * - -ENODEV: The port ID is invalid.
4249 * - -ENOTSUP: The function is not supported by the Ethernet driver.
4251 int rte_eth_timesync_write_time(uint8_t port_id, const struct timespec *time);
4254 * Copy pci device info to the Ethernet device data.
4257 * The *eth_dev* pointer is the address of the *rte_eth_dev* structure.
4259 * The *pci_dev* pointer is the address of the *rte_pci_device* structure.
4262 * - 0 on success, negative on error
4264 void rte_eth_copy_pci_info(struct rte_eth_dev *eth_dev,
4265 struct rte_pci_device *pci_dev);
4268 * Create memzone for HW rings.
4269 * malloc can't be used as the physical address is needed.
4270 * If the memzone is already created, then this function returns a ptr
4274 * The *eth_dev* pointer is the address of the *rte_eth_dev* structure
4276 * The name of the memory zone
4278 * The index of the queue to add to name
4280 * The sizeof of the memory area
4282 * Alignment for resulting memzone. Must be a power of 2.
4284 * The *socket_id* argument is the socket identifier in case of NUMA.
4286 const struct rte_memzone *
4287 rte_eth_dma_zone_reserve(const struct rte_eth_dev *eth_dev, const char *name,
4288 uint16_t queue_id, size_t size,
4289 unsigned align, int socket_id);
4292 * Config l2 tunnel ether type of an Ethernet device for filtering specific
4293 * tunnel packets by ether type.
4296 * The port identifier of the Ethernet device.
4298 * l2 tunnel configuration.
4301 * - (0) if successful.
4302 * - (-ENODEV) if port identifier is invalid.
4303 * - (-ENOTSUP) if hardware doesn't support tunnel type.
4306 rte_eth_dev_l2_tunnel_eth_type_conf(uint8_t port_id,
4307 struct rte_eth_l2_tunnel_conf *l2_tunnel);
4310 * Enable/disable l2 tunnel offload functions. Include,
4311 * 1, The ability of parsing a type of l2 tunnel of an Ethernet device.
4312 * Filtering, forwarding and offloading this type of tunnel packets depend on
4314 * 2, Stripping the l2 tunnel tag.
4315 * 3, Insertion of the l2 tunnel tag.
4316 * 4, Forwarding the packets based on the l2 tunnel tag.
4319 * The port identifier of the Ethernet device.
4321 * l2 tunnel parameters.
4323 * Indicate the offload function.
4325 * Enable or disable this function.
4328 * - (0) if successful.
4329 * - (-ENODEV) if port identifier is invalid.
4330 * - (-ENOTSUP) if hardware doesn't support tunnel type.
4333 rte_eth_dev_l2_tunnel_offload_set(uint8_t port_id,
4334 struct rte_eth_l2_tunnel_conf *l2_tunnel,
4339 * Get the port id from pci adrress or device name
4340 * Ex: 0000:2:00.0 or vdev name net_pcap0
4343 * pci address or name of the device
4345 * pointer to port identifier of the device
4347 * - (0) if successful.
4348 * - (-ENODEV or -EINVAL) on failure.
4351 rte_eth_dev_get_port_by_name(const char *name, uint8_t *port_id);
4354 * Get the device name from port id
4357 * pointer to port identifier of the device
4359 * pci address or name of the device
4361 * - (0) if successful.
4362 * - (-EINVAL) on failure.
4365 rte_eth_dev_get_name_by_port(uint8_t port_id, char *name);
4369 * Wrapper for use by pci drivers as a .probe function to attach to a ethdev
4372 int rte_eth_dev_pci_probe(struct rte_pci_driver *pci_drv,
4373 struct rte_pci_device *pci_dev);
4377 * Wrapper for use by pci drivers as a .remove function to detach a ethdev
4380 int rte_eth_dev_pci_remove(struct rte_pci_device *pci_dev);
4386 #endif /* _RTE_ETHDEV_H_ */