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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 tramsit 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.
175 /* Use this macro to check if LRO API is supported */
176 #define RTE_ETHDEV_HAS_LRO_SUPPORT
179 #include <rte_interrupts.h>
182 #include <rte_devargs.h>
183 #include "rte_ether.h"
184 #include "rte_eth_ctrl.h"
185 #include "rte_dev_info.h"
190 * A structure used to retrieve statistics for an Ethernet port.
192 struct rte_eth_stats {
193 uint64_t ipackets; /**< Total number of successfully received packets. */
194 uint64_t opackets; /**< Total number of successfully transmitted packets.*/
195 uint64_t ibytes; /**< Total number of successfully received bytes. */
196 uint64_t obytes; /**< Total number of successfully transmitted bytes. */
198 /**< Total of RX packets dropped by the HW,
199 * because there are no available mbufs (i.e. RX queues are full).
202 /**< Deprecated; Total of RX packets with CRC error. */
204 /**< Deprecated; Total of RX packets with bad length. */
205 uint64_t ierrors; /**< Total number of erroneous received packets. */
206 uint64_t oerrors; /**< Total number of failed transmitted packets. */
208 /**< Deprecated; Total number of multicast received packets. */
209 uint64_t rx_nombuf; /**< Total number of RX mbuf allocation failures. */
211 /**< Deprecated; Total number of RX packets matching a filter. */
213 /**< Deprecated; Total number of RX packets not matching any filter. */
214 uint64_t tx_pause_xon;
215 /**< Deprecated; Total nb. of XON pause frame sent. */
216 uint64_t rx_pause_xon;
217 /**< Deprecated; Total nb. of XON pause frame received. */
218 uint64_t tx_pause_xoff;
219 /**< Deprecated; Total nb. of XOFF pause frame sent. */
220 uint64_t rx_pause_xoff;
221 /**< Deprecated; Total nb. of XOFF pause frame received. */
222 uint64_t q_ipackets[RTE_ETHDEV_QUEUE_STAT_CNTRS];
223 /**< Total number of queue RX packets. */
224 uint64_t q_opackets[RTE_ETHDEV_QUEUE_STAT_CNTRS];
225 /**< Total number of queue TX packets. */
226 uint64_t q_ibytes[RTE_ETHDEV_QUEUE_STAT_CNTRS];
227 /**< Total number of successfully received queue bytes. */
228 uint64_t q_obytes[RTE_ETHDEV_QUEUE_STAT_CNTRS];
229 /**< Total number of successfully transmitted queue bytes. */
230 uint64_t q_errors[RTE_ETHDEV_QUEUE_STAT_CNTRS];
231 /**< Total number of queue packets received that are dropped. */
233 /**< Total number of good packets received from loopback,VF Only */
235 /**< Total number of good packets transmitted to loopback,VF Only */
237 /**< Total number of good bytes received from loopback,VF Only */
239 /**< Total number of good bytes transmitted to loopback,VF Only */
243 * A structure used to retrieve link-level information of an Ethernet port.
245 struct rte_eth_link {
246 uint16_t link_speed; /**< ETH_LINK_SPEED_[10, 100, 1000, 10000] */
247 uint16_t link_duplex; /**< ETH_LINK_[HALF_DUPLEX, FULL_DUPLEX] */
248 uint8_t link_status : 1; /**< 1 -> link up, 0 -> link down */
249 }__attribute__((aligned(8))); /**< aligned for atomic64 read/write */
251 #define ETH_LINK_SPEED_AUTONEG 0 /**< Auto-negotiate link speed. */
252 #define ETH_LINK_SPEED_10 10 /**< 10 megabits/second. */
253 #define ETH_LINK_SPEED_100 100 /**< 100 megabits/second. */
254 #define ETH_LINK_SPEED_1000 1000 /**< 1 gigabits/second. */
255 #define ETH_LINK_SPEED_10000 10000 /**< 10 gigabits/second. */
256 #define ETH_LINK_SPEED_10G 10000 /**< alias of 10 gigabits/second. */
257 #define ETH_LINK_SPEED_20G 20000 /**< 20 gigabits/second. */
258 #define ETH_LINK_SPEED_40G 40000 /**< 40 gigabits/second. */
260 #define ETH_LINK_AUTONEG_DUPLEX 0 /**< Auto-negotiate duplex. */
261 #define ETH_LINK_HALF_DUPLEX 1 /**< Half-duplex connection. */
262 #define ETH_LINK_FULL_DUPLEX 2 /**< Full-duplex connection. */
265 * A structure used to configure the ring threshold registers of an RX/TX
266 * queue for an Ethernet port.
268 struct rte_eth_thresh {
269 uint8_t pthresh; /**< Ring prefetch threshold. */
270 uint8_t hthresh; /**< Ring host threshold. */
271 uint8_t wthresh; /**< Ring writeback threshold. */
275 * Simple flags are used for rte_eth_conf.rxmode.mq_mode.
277 #define ETH_MQ_RX_RSS_FLAG 0x1
278 #define ETH_MQ_RX_DCB_FLAG 0x2
279 #define ETH_MQ_RX_VMDQ_FLAG 0x4
282 * A set of values to identify what method is to be used to route
283 * packets to multiple queues.
285 enum rte_eth_rx_mq_mode {
286 /** None of DCB,RSS or VMDQ mode */
289 /** For RX side, only RSS is on */
290 ETH_MQ_RX_RSS = ETH_MQ_RX_RSS_FLAG,
291 /** For RX side,only DCB is on. */
292 ETH_MQ_RX_DCB = ETH_MQ_RX_DCB_FLAG,
293 /** Both DCB and RSS enable */
294 ETH_MQ_RX_DCB_RSS = ETH_MQ_RX_RSS_FLAG | ETH_MQ_RX_DCB_FLAG,
296 /** Only VMDQ, no RSS nor DCB */
297 ETH_MQ_RX_VMDQ_ONLY = ETH_MQ_RX_VMDQ_FLAG,
298 /** RSS mode with VMDQ */
299 ETH_MQ_RX_VMDQ_RSS = ETH_MQ_RX_RSS_FLAG | ETH_MQ_RX_VMDQ_FLAG,
300 /** Use VMDQ+DCB to route traffic to queues */
301 ETH_MQ_RX_VMDQ_DCB = ETH_MQ_RX_VMDQ_FLAG | ETH_MQ_RX_DCB_FLAG,
302 /** Enable both VMDQ and DCB in VMDq */
303 ETH_MQ_RX_VMDQ_DCB_RSS = ETH_MQ_RX_RSS_FLAG | ETH_MQ_RX_DCB_FLAG |
308 * for rx mq mode backward compatible
310 #define ETH_RSS ETH_MQ_RX_RSS
311 #define VMDQ_DCB ETH_MQ_RX_VMDQ_DCB
312 #define ETH_DCB_RX ETH_MQ_RX_DCB
315 * A set of values to identify what method is to be used to transmit
316 * packets using multi-TCs.
318 enum rte_eth_tx_mq_mode {
319 ETH_MQ_TX_NONE = 0, /**< It is in neither DCB nor VT mode. */
320 ETH_MQ_TX_DCB, /**< For TX side,only DCB is on. */
321 ETH_MQ_TX_VMDQ_DCB, /**< For TX side,both DCB and VT is on. */
322 ETH_MQ_TX_VMDQ_ONLY, /**< Only VT on, no DCB */
326 * for tx mq mode backward compatible
328 #define ETH_DCB_NONE ETH_MQ_TX_NONE
329 #define ETH_VMDQ_DCB_TX ETH_MQ_TX_VMDQ_DCB
330 #define ETH_DCB_TX ETH_MQ_TX_DCB
333 * A structure used to configure the RX features of an Ethernet port.
335 struct rte_eth_rxmode {
336 /** The multi-queue packet distribution mode to be used, e.g. RSS. */
337 enum rte_eth_rx_mq_mode mq_mode;
338 uint32_t max_rx_pkt_len; /**< Only used if jumbo_frame enabled. */
339 uint16_t split_hdr_size; /**< hdr buf size (header_split enabled).*/
340 uint16_t header_split : 1, /**< Header Split enable. */
341 hw_ip_checksum : 1, /**< IP/UDP/TCP checksum offload enable. */
342 hw_vlan_filter : 1, /**< VLAN filter enable. */
343 hw_vlan_strip : 1, /**< VLAN strip enable. */
344 hw_vlan_extend : 1, /**< Extended VLAN enable. */
345 jumbo_frame : 1, /**< Jumbo Frame Receipt enable. */
346 hw_strip_crc : 1, /**< Enable CRC stripping by hardware. */
347 enable_scatter : 1, /**< Enable scatter packets rx handler */
348 enable_lro : 1; /**< Enable LRO */
352 * A structure used to configure the Receive Side Scaling (RSS) feature
353 * of an Ethernet port.
354 * If not NULL, the *rss_key* pointer of the *rss_conf* structure points
355 * to an array holding the RSS key to use for hashing specific header
356 * fields of received packets. The length of this array should be indicated
357 * by *rss_key_len* below. Otherwise, a default random hash key is used by
360 * The *rss_key_len* field of the *rss_conf* structure indicates the length
361 * in bytes of the array pointed by *rss_key*. To be compatible, this length
362 * will be checked in i40e only. Others assume 40 bytes to be used as before.
364 * The *rss_hf* field of the *rss_conf* structure indicates the different
365 * types of IPv4/IPv6 packets to which the RSS hashing must be applied.
366 * Supplying an *rss_hf* equal to zero disables the RSS feature.
368 struct rte_eth_rss_conf {
369 uint8_t *rss_key; /**< If not NULL, 40-byte hash key. */
370 uint8_t rss_key_len; /**< hash key length in bytes. */
371 uint64_t rss_hf; /**< Hash functions to apply - see below. */
375 * The RSS offload types are defined based on flow types which are defined
376 * in rte_eth_ctrl.h. Different NIC hardwares may support different RSS offload
377 * types. The supported flow types or RSS offload types can be queried by
378 * rte_eth_dev_info_get().
380 #define ETH_RSS_IPV4 (1ULL << RTE_ETH_FLOW_IPV4)
381 #define ETH_RSS_FRAG_IPV4 (1ULL << RTE_ETH_FLOW_FRAG_IPV4)
382 #define ETH_RSS_NONFRAG_IPV4_TCP (1ULL << RTE_ETH_FLOW_NONFRAG_IPV4_TCP)
383 #define ETH_RSS_NONFRAG_IPV4_UDP (1ULL << RTE_ETH_FLOW_NONFRAG_IPV4_UDP)
384 #define ETH_RSS_NONFRAG_IPV4_SCTP (1ULL << RTE_ETH_FLOW_NONFRAG_IPV4_SCTP)
385 #define ETH_RSS_NONFRAG_IPV4_OTHER (1ULL << RTE_ETH_FLOW_NONFRAG_IPV4_OTHER)
386 #define ETH_RSS_IPV6 (1ULL << RTE_ETH_FLOW_IPV6)
387 #define ETH_RSS_FRAG_IPV6 (1ULL << RTE_ETH_FLOW_FRAG_IPV6)
388 #define ETH_RSS_NONFRAG_IPV6_TCP (1ULL << RTE_ETH_FLOW_NONFRAG_IPV6_TCP)
389 #define ETH_RSS_NONFRAG_IPV6_UDP (1ULL << RTE_ETH_FLOW_NONFRAG_IPV6_UDP)
390 #define ETH_RSS_NONFRAG_IPV6_SCTP (1ULL << RTE_ETH_FLOW_NONFRAG_IPV6_SCTP)
391 #define ETH_RSS_NONFRAG_IPV6_OTHER (1ULL << RTE_ETH_FLOW_NONFRAG_IPV6_OTHER)
392 #define ETH_RSS_L2_PAYLOAD (1ULL << RTE_ETH_FLOW_L2_PAYLOAD)
393 #define ETH_RSS_IPV6_EX (1ULL << RTE_ETH_FLOW_IPV6_EX)
394 #define ETH_RSS_IPV6_TCP_EX (1ULL << RTE_ETH_FLOW_IPV6_TCP_EX)
395 #define ETH_RSS_IPV6_UDP_EX (1ULL << RTE_ETH_FLOW_IPV6_UDP_EX)
397 #define ETH_RSS_IP ( \
399 ETH_RSS_FRAG_IPV4 | \
400 ETH_RSS_NONFRAG_IPV4_OTHER | \
402 ETH_RSS_FRAG_IPV6 | \
403 ETH_RSS_NONFRAG_IPV6_OTHER | \
406 #define ETH_RSS_UDP ( \
407 ETH_RSS_NONFRAG_IPV4_UDP | \
408 ETH_RSS_NONFRAG_IPV6_UDP | \
411 #define ETH_RSS_TCP ( \
412 ETH_RSS_NONFRAG_IPV4_TCP | \
413 ETH_RSS_NONFRAG_IPV6_TCP | \
416 #define ETH_RSS_SCTP ( \
417 ETH_RSS_NONFRAG_IPV4_SCTP | \
418 ETH_RSS_NONFRAG_IPV6_SCTP)
420 /**< Mask of valid RSS hash protocols */
421 #define ETH_RSS_PROTO_MASK ( \
423 ETH_RSS_FRAG_IPV4 | \
424 ETH_RSS_NONFRAG_IPV4_TCP | \
425 ETH_RSS_NONFRAG_IPV4_UDP | \
426 ETH_RSS_NONFRAG_IPV4_SCTP | \
427 ETH_RSS_NONFRAG_IPV4_OTHER | \
429 ETH_RSS_FRAG_IPV6 | \
430 ETH_RSS_NONFRAG_IPV6_TCP | \
431 ETH_RSS_NONFRAG_IPV6_UDP | \
432 ETH_RSS_NONFRAG_IPV6_SCTP | \
433 ETH_RSS_NONFRAG_IPV6_OTHER | \
434 ETH_RSS_L2_PAYLOAD | \
436 ETH_RSS_IPV6_TCP_EX | \
440 * Definitions used for redirection table entry size.
441 * Some RSS RETA sizes may not be supported by some drivers, check the
442 * documentation or the description of relevant functions for more details.
444 #define ETH_RSS_RETA_SIZE_64 64
445 #define ETH_RSS_RETA_SIZE_128 128
446 #define ETH_RSS_RETA_SIZE_512 512
447 #define RTE_RETA_GROUP_SIZE 64
449 /* Definitions used for VMDQ and DCB functionality */
450 #define ETH_VMDQ_MAX_VLAN_FILTERS 64 /**< Maximum nb. of VMDQ vlan filters. */
451 #define ETH_DCB_NUM_USER_PRIORITIES 8 /**< Maximum nb. of DCB priorities. */
452 #define ETH_VMDQ_DCB_NUM_QUEUES 128 /**< Maximum nb. of VMDQ DCB queues. */
453 #define ETH_DCB_NUM_QUEUES 128 /**< Maximum nb. of DCB queues. */
455 /* DCB capability defines */
456 #define ETH_DCB_PG_SUPPORT 0x00000001 /**< Priority Group(ETS) support. */
457 #define ETH_DCB_PFC_SUPPORT 0x00000002 /**< Priority Flow Control support. */
459 /* Definitions used for VLAN Offload functionality */
460 #define ETH_VLAN_STRIP_OFFLOAD 0x0001 /**< VLAN Strip On/Off */
461 #define ETH_VLAN_FILTER_OFFLOAD 0x0002 /**< VLAN Filter On/Off */
462 #define ETH_VLAN_EXTEND_OFFLOAD 0x0004 /**< VLAN Extend On/Off */
464 /* Definitions used for mask VLAN setting */
465 #define ETH_VLAN_STRIP_MASK 0x0001 /**< VLAN Strip setting mask */
466 #define ETH_VLAN_FILTER_MASK 0x0002 /**< VLAN Filter setting mask*/
467 #define ETH_VLAN_EXTEND_MASK 0x0004 /**< VLAN Extend setting mask*/
468 #define ETH_VLAN_ID_MAX 0x0FFF /**< VLAN ID is in lower 12 bits*/
470 /* Definitions used for receive MAC address */
471 #define ETH_NUM_RECEIVE_MAC_ADDR 128 /**< Maximum nb. of receive mac addr. */
473 /* Definitions used for unicast hash */
474 #define ETH_VMDQ_NUM_UC_HASH_ARRAY 128 /**< Maximum nb. of UC hash array. */
476 /* Definitions used for VMDQ pool rx mode setting */
477 #define ETH_VMDQ_ACCEPT_UNTAG 0x0001 /**< accept untagged packets. */
478 #define ETH_VMDQ_ACCEPT_HASH_MC 0x0002 /**< accept packets in multicast table . */
479 #define ETH_VMDQ_ACCEPT_HASH_UC 0x0004 /**< accept packets in unicast table. */
480 #define ETH_VMDQ_ACCEPT_BROADCAST 0x0008 /**< accept broadcast packets. */
481 #define ETH_VMDQ_ACCEPT_MULTICAST 0x0010 /**< multicast promiscuous. */
483 /** Maximum nb. of vlan per mirror rule */
484 #define ETH_MIRROR_MAX_VLANS 64
486 #define ETH_MIRROR_VIRTUAL_POOL_UP 0x01 /**< Virtual Pool uplink Mirroring. */
487 #define ETH_MIRROR_UPLINK_PORT 0x02 /**< Uplink Port Mirroring. */
488 #define ETH_MIRROR_DOWNLINK_PORT 0x04 /**< Downlink Port Mirroring. */
489 #define ETH_MIRROR_VLAN 0x08 /**< VLAN Mirroring. */
490 #define ETH_MIRROR_VIRTUAL_POOL_DOWN 0x10 /**< Virtual Pool downlink Mirroring. */
493 * A structure used to configure VLAN traffic mirror of an Ethernet port.
495 struct rte_eth_vlan_mirror {
496 uint64_t vlan_mask; /**< mask for valid VLAN ID. */
497 /** VLAN ID list for vlan mirroring. */
498 uint16_t vlan_id[ETH_MIRROR_MAX_VLANS];
502 * A structure used to configure traffic mirror of an Ethernet port.
504 struct rte_eth_mirror_conf {
505 uint8_t rule_type; /**< Mirroring rule type */
506 uint8_t dst_pool; /**< Destination pool for this mirror rule. */
507 uint64_t pool_mask; /**< Bitmap of pool for pool mirroring */
508 /** VLAN ID setting for VLAN mirroring. */
509 struct rte_eth_vlan_mirror vlan;
513 * A structure used to configure 64 entries of Redirection Table of the
514 * Receive Side Scaling (RSS) feature of an Ethernet port. To configure
515 * more than 64 entries supported by hardware, an array of this structure
518 struct rte_eth_rss_reta_entry64 {
520 /**< Mask bits indicate which entries need to be updated/queried. */
521 uint8_t reta[RTE_RETA_GROUP_SIZE];
522 /**< Group of 64 redirection table entries. */
526 * This enum indicates the possible number of traffic classes
527 * in DCB configratioins
529 enum rte_eth_nb_tcs {
530 ETH_4_TCS = 4, /**< 4 TCs with DCB. */
531 ETH_8_TCS = 8 /**< 8 TCs with DCB. */
535 * This enum indicates the possible number of queue pools
536 * in VMDQ configurations.
538 enum rte_eth_nb_pools {
539 ETH_8_POOLS = 8, /**< 8 VMDq pools. */
540 ETH_16_POOLS = 16, /**< 16 VMDq pools. */
541 ETH_32_POOLS = 32, /**< 32 VMDq pools. */
542 ETH_64_POOLS = 64 /**< 64 VMDq pools. */
545 /* This structure may be extended in future. */
546 struct rte_eth_dcb_rx_conf {
547 enum rte_eth_nb_tcs nb_tcs; /**< Possible DCB TCs, 4 or 8 TCs */
548 /** Traffic class each UP mapped to. */
549 uint8_t dcb_tc[ETH_DCB_NUM_USER_PRIORITIES];
552 struct rte_eth_vmdq_dcb_tx_conf {
553 enum rte_eth_nb_pools nb_queue_pools; /**< With DCB, 16 or 32 pools. */
554 /** Traffic class each UP mapped to. */
555 uint8_t dcb_tc[ETH_DCB_NUM_USER_PRIORITIES];
558 struct rte_eth_dcb_tx_conf {
559 enum rte_eth_nb_tcs nb_tcs; /**< Possible DCB TCs, 4 or 8 TCs. */
560 /** Traffic class each UP mapped to. */
561 uint8_t dcb_tc[ETH_DCB_NUM_USER_PRIORITIES];
564 struct rte_eth_vmdq_tx_conf {
565 enum rte_eth_nb_pools nb_queue_pools; /**< VMDq mode, 64 pools. */
569 * A structure used to configure the VMDQ+DCB feature
570 * of an Ethernet port.
572 * Using this feature, packets are routed to a pool of queues, based
573 * on the vlan id in the vlan tag, and then to a specific queue within
574 * that pool, using the user priority vlan tag field.
576 * A default pool may be used, if desired, to route all traffic which
577 * does not match the vlan filter rules.
579 struct rte_eth_vmdq_dcb_conf {
580 enum rte_eth_nb_pools nb_queue_pools; /**< With DCB, 16 or 32 pools */
581 uint8_t enable_default_pool; /**< If non-zero, use a default pool */
582 uint8_t default_pool; /**< The default pool, if applicable */
583 uint8_t nb_pool_maps; /**< We can have up to 64 filters/mappings */
585 uint16_t vlan_id; /**< The vlan id of the received frame */
586 uint64_t pools; /**< Bitmask of pools for packet rx */
587 } pool_map[ETH_VMDQ_MAX_VLAN_FILTERS]; /**< VMDq vlan pool maps. */
588 uint8_t dcb_tc[ETH_DCB_NUM_USER_PRIORITIES];
589 /**< Selects a queue in a pool */
592 struct rte_eth_vmdq_rx_conf {
593 enum rte_eth_nb_pools nb_queue_pools; /**< VMDq only mode, 8 or 64 pools */
594 uint8_t enable_default_pool; /**< If non-zero, use a default pool */
595 uint8_t default_pool; /**< The default pool, if applicable */
596 uint8_t enable_loop_back; /**< Enable VT loop back */
597 uint8_t nb_pool_maps; /**< We can have up to 64 filters/mappings */
598 uint32_t rx_mode; /**< Flags from ETH_VMDQ_ACCEPT_* */
600 uint16_t vlan_id; /**< The vlan id of the received frame */
601 uint64_t pools; /**< Bitmask of pools for packet rx */
602 } pool_map[ETH_VMDQ_MAX_VLAN_FILTERS]; /**< VMDq vlan pool maps. */
606 * A structure used to configure the TX features of an Ethernet port.
608 struct rte_eth_txmode {
609 enum rte_eth_tx_mq_mode mq_mode; /**< TX multi-queues mode. */
611 /* For i40e specifically */
613 uint8_t hw_vlan_reject_tagged : 1,
614 /**< If set, reject sending out tagged pkts */
615 hw_vlan_reject_untagged : 1,
616 /**< If set, reject sending out untagged pkts */
617 hw_vlan_insert_pvid : 1;
618 /**< If set, enable port based VLAN insertion */
622 * A structure used to configure an RX ring of an Ethernet port.
624 struct rte_eth_rxconf {
625 struct rte_eth_thresh rx_thresh; /**< RX ring threshold registers. */
626 uint16_t rx_free_thresh; /**< Drives the freeing of RX descriptors. */
627 uint8_t rx_drop_en; /**< Drop packets if no descriptors are available. */
628 uint8_t rx_deferred_start; /**< Do not start queue with rte_eth_dev_start(). */
631 #define ETH_TXQ_FLAGS_NOMULTSEGS 0x0001 /**< nb_segs=1 for all mbufs */
632 #define ETH_TXQ_FLAGS_NOREFCOUNT 0x0002 /**< refcnt can be ignored */
633 #define ETH_TXQ_FLAGS_NOMULTMEMP 0x0004 /**< all bufs come from same mempool */
634 #define ETH_TXQ_FLAGS_NOVLANOFFL 0x0100 /**< disable VLAN offload */
635 #define ETH_TXQ_FLAGS_NOXSUMSCTP 0x0200 /**< disable SCTP checksum offload */
636 #define ETH_TXQ_FLAGS_NOXSUMUDP 0x0400 /**< disable UDP checksum offload */
637 #define ETH_TXQ_FLAGS_NOXSUMTCP 0x0800 /**< disable TCP checksum offload */
638 #define ETH_TXQ_FLAGS_NOOFFLOADS \
639 (ETH_TXQ_FLAGS_NOVLANOFFL | ETH_TXQ_FLAGS_NOXSUMSCTP | \
640 ETH_TXQ_FLAGS_NOXSUMUDP | ETH_TXQ_FLAGS_NOXSUMTCP)
641 #define ETH_TXQ_FLAGS_NOXSUMS \
642 (ETH_TXQ_FLAGS_NOXSUMSCTP | ETH_TXQ_FLAGS_NOXSUMUDP | \
643 ETH_TXQ_FLAGS_NOXSUMTCP)
645 * A structure used to configure a TX ring of an Ethernet port.
647 struct rte_eth_txconf {
648 struct rte_eth_thresh tx_thresh; /**< TX ring threshold registers. */
649 uint16_t tx_rs_thresh; /**< Drives the setting of RS bit on TXDs. */
650 uint16_t tx_free_thresh; /**< Start freeing TX buffers if there are
651 less free descriptors than this value. */
653 uint32_t txq_flags; /**< Set flags for the Tx queue */
654 uint8_t tx_deferred_start; /**< Do not start queue with rte_eth_dev_start(). */
658 * A structure contains information about HW descriptor ring limitations.
660 struct rte_eth_desc_lim {
661 uint16_t nb_max; /**< Max allowed number of descriptors. */
662 uint16_t nb_min; /**< Min allowed number of descriptors. */
663 uint16_t nb_align; /**< Number of descriptors should be aligned to. */
667 * This enum indicates the flow control mode
669 enum rte_eth_fc_mode {
670 RTE_FC_NONE = 0, /**< Disable flow control. */
671 RTE_FC_RX_PAUSE, /**< RX pause frame, enable flowctrl on TX side. */
672 RTE_FC_TX_PAUSE, /**< TX pause frame, enable flowctrl on RX side. */
673 RTE_FC_FULL /**< Enable flow control on both side. */
677 * A structure used to configure Ethernet flow control parameter.
678 * These parameters will be configured into the register of the NIC.
679 * Please refer to the corresponding data sheet for proper value.
681 struct rte_eth_fc_conf {
682 uint32_t high_water; /**< High threshold value to trigger XOFF */
683 uint32_t low_water; /**< Low threshold value to trigger XON */
684 uint16_t pause_time; /**< Pause quota in the Pause frame */
685 uint16_t send_xon; /**< Is XON frame need be sent */
686 enum rte_eth_fc_mode mode; /**< Link flow control mode */
687 uint8_t mac_ctrl_frame_fwd; /**< Forward MAC control frames */
688 uint8_t autoneg; /**< Use Pause autoneg */
692 * A structure used to configure Ethernet priority flow control parameter.
693 * These parameters will be configured into the register of the NIC.
694 * Please refer to the corresponding data sheet for proper value.
696 struct rte_eth_pfc_conf {
697 struct rte_eth_fc_conf fc; /**< General flow control parameter. */
698 uint8_t priority; /**< VLAN User Priority. */
702 * Memory space that can be configured to store Flow Director filters
703 * in the board memory.
705 enum rte_fdir_pballoc_type {
706 RTE_FDIR_PBALLOC_64K = 0, /**< 64k. */
707 RTE_FDIR_PBALLOC_128K, /**< 128k. */
708 RTE_FDIR_PBALLOC_256K, /**< 256k. */
712 * Select report mode of FDIR hash information in RX descriptors.
714 enum rte_fdir_status_mode {
715 RTE_FDIR_NO_REPORT_STATUS = 0, /**< Never report FDIR hash. */
716 RTE_FDIR_REPORT_STATUS, /**< Only report FDIR hash for matching pkts. */
717 RTE_FDIR_REPORT_STATUS_ALWAYS, /**< Always report FDIR hash. */
721 * A structure used to configure the Flow Director (FDIR) feature
722 * of an Ethernet port.
724 * If mode is RTE_FDIR_DISABLE, the pballoc value is ignored.
726 struct rte_fdir_conf {
727 enum rte_fdir_mode mode; /**< Flow Director mode. */
728 enum rte_fdir_pballoc_type pballoc; /**< Space for FDIR filters. */
729 enum rte_fdir_status_mode status; /**< How to report FDIR hash. */
730 /** RX queue of packets matching a "drop" filter in perfect mode. */
732 struct rte_eth_fdir_masks mask;
733 struct rte_eth_fdir_flex_conf flex_conf;
734 /**< Flex payload configuration. */
738 * UDP tunneling configuration.
740 struct rte_eth_udp_tunnel {
746 * A structure used to enable/disable specific device interrupts.
748 struct rte_intr_conf {
749 /** enable/disable lsc interrupt. 0 (default) - disable, 1 enable */
751 /** enable/disable rxq interrupt. 0 (default) - disable, 1 enable */
756 * A structure used to configure an Ethernet port.
757 * Depending upon the RX multi-queue mode, extra advanced
758 * configuration settings may be needed.
760 struct rte_eth_conf {
762 /**< ETH_LINK_SPEED_10[0|00|000], or 0 for autonegotation */
763 uint16_t link_duplex;
764 /**< ETH_LINK_[HALF_DUPLEX|FULL_DUPLEX], or 0 for autonegotation */
765 struct rte_eth_rxmode rxmode; /**< Port RX configuration. */
766 struct rte_eth_txmode txmode; /**< Port TX configuration. */
767 uint32_t lpbk_mode; /**< Loopback operation mode. By default the value
768 is 0, meaning the loopback mode is disabled.
769 Read the datasheet of given ethernet controller
770 for details. The possible values of this field
771 are defined in implementation of each driver. */
773 struct rte_eth_rss_conf rss_conf; /**< Port RSS configuration */
774 struct rte_eth_vmdq_dcb_conf vmdq_dcb_conf;
775 /**< Port vmdq+dcb configuration. */
776 struct rte_eth_dcb_rx_conf dcb_rx_conf;
777 /**< Port dcb RX configuration. */
778 struct rte_eth_vmdq_rx_conf vmdq_rx_conf;
779 /**< Port vmdq RX configuration. */
780 } rx_adv_conf; /**< Port RX filtering configuration (union). */
782 struct rte_eth_vmdq_dcb_tx_conf vmdq_dcb_tx_conf;
783 /**< Port vmdq+dcb TX configuration. */
784 struct rte_eth_dcb_tx_conf dcb_tx_conf;
785 /**< Port dcb TX configuration. */
786 struct rte_eth_vmdq_tx_conf vmdq_tx_conf;
787 /**< Port vmdq TX configuration. */
788 } tx_adv_conf; /**< Port TX DCB configuration (union). */
789 /** Currently,Priority Flow Control(PFC) are supported,if DCB with PFC
790 is needed,and the variable must be set ETH_DCB_PFC_SUPPORT. */
791 uint32_t dcb_capability_en;
792 struct rte_fdir_conf fdir_conf; /**< FDIR configuration. */
793 struct rte_intr_conf intr_conf; /**< Interrupt mode configuration. */
797 * A structure used to retrieve the contextual information of
798 * an Ethernet device, such as the controlling driver of the device,
799 * its PCI context, etc...
803 * RX offload capabilities of a device.
805 #define DEV_RX_OFFLOAD_VLAN_STRIP 0x00000001
806 #define DEV_RX_OFFLOAD_IPV4_CKSUM 0x00000002
807 #define DEV_RX_OFFLOAD_UDP_CKSUM 0x00000004
808 #define DEV_RX_OFFLOAD_TCP_CKSUM 0x00000008
809 #define DEV_RX_OFFLOAD_TCP_LRO 0x00000010
810 #define DEV_RX_OFFLOAD_QINQ_STRIP 0x00000020
813 * TX offload capabilities of a device.
815 #define DEV_TX_OFFLOAD_VLAN_INSERT 0x00000001
816 #define DEV_TX_OFFLOAD_IPV4_CKSUM 0x00000002
817 #define DEV_TX_OFFLOAD_UDP_CKSUM 0x00000004
818 #define DEV_TX_OFFLOAD_TCP_CKSUM 0x00000008
819 #define DEV_TX_OFFLOAD_SCTP_CKSUM 0x00000010
820 #define DEV_TX_OFFLOAD_TCP_TSO 0x00000020
821 #define DEV_TX_OFFLOAD_UDP_TSO 0x00000040
822 #define DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM 0x00000080 /**< Used for tunneling packet. */
823 #define DEV_TX_OFFLOAD_QINQ_INSERT 0x00000100
825 struct rte_eth_dev_info {
826 struct rte_pci_device *pci_dev; /**< Device PCI information. */
827 const char *driver_name; /**< Device Driver name. */
828 unsigned int if_index; /**< Index to bound host interface, or 0 if none.
829 Use if_indextoname() to translate into an interface name. */
830 uint32_t min_rx_bufsize; /**< Minimum size of RX buffer. */
831 uint32_t max_rx_pktlen; /**< Maximum configurable length of RX pkt. */
832 uint16_t max_rx_queues; /**< Maximum number of RX queues. */
833 uint16_t max_tx_queues; /**< Maximum number of TX queues. */
834 uint32_t max_mac_addrs; /**< Maximum number of MAC addresses. */
835 uint32_t max_hash_mac_addrs;
836 /** Maximum number of hash MAC addresses for MTA and UTA. */
837 uint16_t max_vfs; /**< Maximum number of VFs. */
838 uint16_t max_vmdq_pools; /**< Maximum number of VMDq pools. */
839 uint32_t rx_offload_capa; /**< Device RX offload capabilities. */
840 uint32_t tx_offload_capa; /**< Device TX offload capabilities. */
842 /**< Device redirection table size, the total number of entries. */
843 uint8_t hash_key_size; /**< Hash key size in bytes */
844 /** Bit mask of RSS offloads, the bit offset also means flow type */
845 uint64_t flow_type_rss_offloads;
846 struct rte_eth_rxconf default_rxconf; /**< Default RX configuration */
847 struct rte_eth_txconf default_txconf; /**< Default TX configuration */
848 uint16_t vmdq_queue_base; /**< First queue ID for VMDQ pools. */
849 uint16_t vmdq_queue_num; /**< Queue number for VMDQ pools. */
850 uint16_t vmdq_pool_base; /**< First ID of VMDQ pools. */
851 struct rte_eth_desc_lim rx_desc_lim; /**< RX descriptors limits */
852 struct rte_eth_desc_lim tx_desc_lim; /**< TX descriptors limits */
856 * Ethernet device RX queue information structure.
857 * Used to retieve information about configured queue.
859 struct rte_eth_rxq_info {
860 struct rte_mempool *mp; /**< mempool used by that queue. */
861 struct rte_eth_rxconf conf; /**< queue config parameters. */
862 uint8_t scattered_rx; /**< scattered packets RX supported. */
863 uint16_t nb_desc; /**< configured number of RXDs. */
864 } __rte_cache_aligned;
867 * Ethernet device TX queue information structure.
868 * Used to retieve information about configured queue.
870 struct rte_eth_txq_info {
871 struct rte_eth_txconf conf; /**< queue config parameters. */
872 uint16_t nb_desc; /**< configured number of TXDs. */
873 } __rte_cache_aligned;
875 /** Maximum name length for extended statistics counters */
876 #define RTE_ETH_XSTATS_NAME_SIZE 64
879 * An Ethernet device extended statistic structure
881 * This structure is used by ethdev->eth_xstats_get() to provide
882 * statistics that are not provided in the generic rte_eth_stats
885 struct rte_eth_xstats {
886 char name[RTE_ETH_XSTATS_NAME_SIZE];
890 #define ETH_DCB_NUM_TCS 8
891 #define ETH_MAX_VMDQ_POOL 64
894 * A structure used to get the information of queue and
895 * TC mapping on both TX and RX paths.
897 struct rte_eth_dcb_tc_queue_mapping {
898 /** rx queues assigned to tc per Pool */
902 } tc_rxq[ETH_MAX_VMDQ_POOL][ETH_DCB_NUM_TCS];
903 /** rx queues assigned to tc per Pool */
907 } tc_txq[ETH_MAX_VMDQ_POOL][ETH_DCB_NUM_TCS];
911 * A structure used to get the information of DCB.
912 * It includes TC UP mapping and queue TC mapping.
914 struct rte_eth_dcb_info {
915 uint8_t nb_tcs; /**< number of TCs */
916 uint8_t prio_tc[ETH_DCB_NUM_USER_PRIORITIES]; /**< Priority to tc */
917 uint8_t tc_bws[ETH_DCB_NUM_TCS]; /**< TX BW percentage for each TC */
918 /** rx queues assigned to tc */
919 struct rte_eth_dcb_tc_queue_mapping tc_queue;
924 struct rte_eth_dev_callback;
925 /** @internal Structure to keep track of registered callbacks */
926 TAILQ_HEAD(rte_eth_dev_cb_list, rte_eth_dev_callback);
929 * Definitions of all functions exported by an Ethernet driver through the
930 * the generic structure of type *eth_dev_ops* supplied in the *rte_eth_dev*
931 * structure associated with an Ethernet device.
934 typedef int (*eth_dev_configure_t)(struct rte_eth_dev *dev);
935 /**< @internal Ethernet device configuration. */
937 typedef int (*eth_dev_start_t)(struct rte_eth_dev *dev);
938 /**< @internal Function used to start a configured Ethernet device. */
940 typedef void (*eth_dev_stop_t)(struct rte_eth_dev *dev);
941 /**< @internal Function used to stop a configured Ethernet device. */
943 typedef int (*eth_dev_set_link_up_t)(struct rte_eth_dev *dev);
944 /**< @internal Function used to link up a configured Ethernet device. */
946 typedef int (*eth_dev_set_link_down_t)(struct rte_eth_dev *dev);
947 /**< @internal Function used to link down a configured Ethernet device. */
949 typedef void (*eth_dev_close_t)(struct rte_eth_dev *dev);
950 /**< @internal Function used to close a configured Ethernet device. */
952 typedef void (*eth_promiscuous_enable_t)(struct rte_eth_dev *dev);
953 /**< @internal Function used to enable the RX promiscuous mode of an Ethernet device. */
955 typedef void (*eth_promiscuous_disable_t)(struct rte_eth_dev *dev);
956 /**< @internal Function used to disable the RX promiscuous mode of an Ethernet device. */
958 typedef void (*eth_allmulticast_enable_t)(struct rte_eth_dev *dev);
959 /**< @internal Enable the receipt of all multicast packets by an Ethernet device. */
961 typedef void (*eth_allmulticast_disable_t)(struct rte_eth_dev *dev);
962 /**< @internal Disable the receipt of all multicast packets by an Ethernet device. */
964 typedef int (*eth_link_update_t)(struct rte_eth_dev *dev,
965 int wait_to_complete);
966 /**< @internal Get link speed, duplex mode and state (up/down) of an Ethernet device. */
968 typedef void (*eth_stats_get_t)(struct rte_eth_dev *dev,
969 struct rte_eth_stats *igb_stats);
970 /**< @internal Get global I/O statistics of an Ethernet device. */
972 typedef void (*eth_stats_reset_t)(struct rte_eth_dev *dev);
973 /**< @internal Reset global I/O statistics of an Ethernet device to 0. */
975 typedef int (*eth_xstats_get_t)(struct rte_eth_dev *dev,
976 struct rte_eth_xstats *stats, unsigned n);
977 /**< @internal Get extended stats of an Ethernet device. */
979 typedef void (*eth_xstats_reset_t)(struct rte_eth_dev *dev);
980 /**< @internal Reset extended stats of an Ethernet device. */
982 typedef int (*eth_queue_stats_mapping_set_t)(struct rte_eth_dev *dev,
986 /**< @internal Set a queue statistics mapping for a tx/rx queue of an Ethernet device. */
988 typedef void (*eth_dev_infos_get_t)(struct rte_eth_dev *dev,
989 struct rte_eth_dev_info *dev_info);
990 /**< @internal Get specific informations of an Ethernet device. */
992 typedef int (*eth_queue_start_t)(struct rte_eth_dev *dev,
994 /**< @internal Start rx and tx of a queue of an Ethernet device. */
996 typedef int (*eth_queue_stop_t)(struct rte_eth_dev *dev,
998 /**< @internal Stop rx and tx of a queue of an Ethernet device. */
1000 typedef int (*eth_rx_queue_setup_t)(struct rte_eth_dev *dev,
1001 uint16_t rx_queue_id,
1002 uint16_t nb_rx_desc,
1003 unsigned int socket_id,
1004 const struct rte_eth_rxconf *rx_conf,
1005 struct rte_mempool *mb_pool);
1006 /**< @internal Set up a receive queue of an Ethernet device. */
1008 typedef int (*eth_tx_queue_setup_t)(struct rte_eth_dev *dev,
1009 uint16_t tx_queue_id,
1010 uint16_t nb_tx_desc,
1011 unsigned int socket_id,
1012 const struct rte_eth_txconf *tx_conf);
1013 /**< @internal Setup a transmit queue of an Ethernet device. */
1015 typedef int (*eth_rx_enable_intr_t)(struct rte_eth_dev *dev,
1016 uint16_t rx_queue_id);
1017 /**< @internal Enable interrupt of a receive queue of an Ethernet device. */
1019 typedef int (*eth_rx_disable_intr_t)(struct rte_eth_dev *dev,
1020 uint16_t rx_queue_id);
1021 /**< @internal Disable interrupt of a receive queue of an Ethernet device. */
1023 typedef void (*eth_queue_release_t)(void *queue);
1024 /**< @internal Release memory resources allocated by given RX/TX queue. */
1026 typedef uint32_t (*eth_rx_queue_count_t)(struct rte_eth_dev *dev,
1027 uint16_t rx_queue_id);
1028 /**< @internal Get number of available descriptors on a receive queue of an Ethernet device. */
1030 typedef int (*eth_rx_descriptor_done_t)(void *rxq, uint16_t offset);
1031 /**< @internal Check DD bit of specific RX descriptor */
1033 typedef void (*eth_rxq_info_get_t)(struct rte_eth_dev *dev,
1034 uint16_t rx_queue_id, struct rte_eth_rxq_info *qinfo);
1036 typedef void (*eth_txq_info_get_t)(struct rte_eth_dev *dev,
1037 uint16_t tx_queue_id, struct rte_eth_txq_info *qinfo);
1039 typedef int (*mtu_set_t)(struct rte_eth_dev *dev, uint16_t mtu);
1040 /**< @internal Set MTU. */
1042 typedef int (*vlan_filter_set_t)(struct rte_eth_dev *dev,
1045 /**< @internal filtering of a VLAN Tag Identifier by an Ethernet device. */
1047 typedef void (*vlan_tpid_set_t)(struct rte_eth_dev *dev,
1049 /**< @internal set the outer VLAN-TPID by an Ethernet device. */
1051 typedef void (*vlan_offload_set_t)(struct rte_eth_dev *dev, int mask);
1052 /**< @internal set VLAN offload function by an Ethernet device. */
1054 typedef int (*vlan_pvid_set_t)(struct rte_eth_dev *dev,
1057 /**< @internal set port based TX VLAN insertion by an Ethernet device. */
1059 typedef void (*vlan_strip_queue_set_t)(struct rte_eth_dev *dev,
1060 uint16_t rx_queue_id,
1062 /**< @internal VLAN stripping enable/disable by an queue of Ethernet device. */
1064 typedef uint16_t (*eth_rx_burst_t)(void *rxq,
1065 struct rte_mbuf **rx_pkts,
1067 /**< @internal Retrieve input packets from a receive queue of an Ethernet device. */
1069 typedef uint16_t (*eth_tx_burst_t)(void *txq,
1070 struct rte_mbuf **tx_pkts,
1072 /**< @internal Send output packets on a transmit queue of an Ethernet device. */
1074 typedef int (*flow_ctrl_get_t)(struct rte_eth_dev *dev,
1075 struct rte_eth_fc_conf *fc_conf);
1076 /**< @internal Get current flow control parameter on an Ethernet device */
1078 typedef int (*flow_ctrl_set_t)(struct rte_eth_dev *dev,
1079 struct rte_eth_fc_conf *fc_conf);
1080 /**< @internal Setup flow control parameter on an Ethernet device */
1082 typedef int (*priority_flow_ctrl_set_t)(struct rte_eth_dev *dev,
1083 struct rte_eth_pfc_conf *pfc_conf);
1084 /**< @internal Setup priority flow control parameter on an Ethernet device */
1086 typedef int (*reta_update_t)(struct rte_eth_dev *dev,
1087 struct rte_eth_rss_reta_entry64 *reta_conf,
1088 uint16_t reta_size);
1089 /**< @internal Update RSS redirection table on an Ethernet device */
1091 typedef int (*reta_query_t)(struct rte_eth_dev *dev,
1092 struct rte_eth_rss_reta_entry64 *reta_conf,
1093 uint16_t reta_size);
1094 /**< @internal Query RSS redirection table on an Ethernet device */
1096 typedef int (*rss_hash_update_t)(struct rte_eth_dev *dev,
1097 struct rte_eth_rss_conf *rss_conf);
1098 /**< @internal Update RSS hash configuration of an Ethernet device */
1100 typedef int (*rss_hash_conf_get_t)(struct rte_eth_dev *dev,
1101 struct rte_eth_rss_conf *rss_conf);
1102 /**< @internal Get current RSS hash configuration of an Ethernet device */
1104 typedef int (*eth_dev_led_on_t)(struct rte_eth_dev *dev);
1105 /**< @internal Turn on SW controllable LED on an Ethernet device */
1107 typedef int (*eth_dev_led_off_t)(struct rte_eth_dev *dev);
1108 /**< @internal Turn off SW controllable LED on an Ethernet device */
1110 typedef void (*eth_mac_addr_remove_t)(struct rte_eth_dev *dev, uint32_t index);
1111 /**< @internal Remove MAC address from receive address register */
1113 typedef void (*eth_mac_addr_add_t)(struct rte_eth_dev *dev,
1114 struct ether_addr *mac_addr,
1117 /**< @internal Set a MAC address into Receive Address Address Register */
1119 typedef void (*eth_mac_addr_set_t)(struct rte_eth_dev *dev,
1120 struct ether_addr *mac_addr);
1121 /**< @internal Set a MAC address into Receive Address Address Register */
1123 typedef int (*eth_uc_hash_table_set_t)(struct rte_eth_dev *dev,
1124 struct ether_addr *mac_addr,
1126 /**< @internal Set a Unicast Hash bitmap */
1128 typedef int (*eth_uc_all_hash_table_set_t)(struct rte_eth_dev *dev,
1130 /**< @internal Set all Unicast Hash bitmap */
1132 typedef int (*eth_set_vf_rx_mode_t)(struct rte_eth_dev *dev,
1136 /**< @internal Set a VF receive mode */
1138 typedef int (*eth_set_vf_rx_t)(struct rte_eth_dev *dev,
1141 /**< @internal Set a VF receive mode */
1143 typedef int (*eth_set_vf_tx_t)(struct rte_eth_dev *dev,
1146 /**< @internal Enable or disable a VF transmit */
1148 typedef int (*eth_set_vf_vlan_filter_t)(struct rte_eth_dev *dev,
1152 /**< @internal Set VF VLAN pool filter */
1154 typedef int (*eth_set_queue_rate_limit_t)(struct rte_eth_dev *dev,
1157 /**< @internal Set queue TX rate */
1159 typedef int (*eth_set_vf_rate_limit_t)(struct rte_eth_dev *dev,
1163 /**< @internal Set VF TX rate */
1165 typedef int (*eth_mirror_rule_set_t)(struct rte_eth_dev *dev,
1166 struct rte_eth_mirror_conf *mirror_conf,
1169 /**< @internal Add a traffic mirroring rule on an Ethernet device */
1171 typedef int (*eth_mirror_rule_reset_t)(struct rte_eth_dev *dev,
1173 /**< @internal Remove a traffic mirroring rule on an Ethernet device */
1175 typedef int (*eth_udp_tunnel_add_t)(struct rte_eth_dev *dev,
1176 struct rte_eth_udp_tunnel *tunnel_udp);
1177 /**< @internal Add tunneling UDP info */
1179 typedef int (*eth_udp_tunnel_del_t)(struct rte_eth_dev *dev,
1180 struct rte_eth_udp_tunnel *tunnel_udp);
1181 /**< @internal Delete tunneling UDP info */
1183 typedef int (*eth_set_mc_addr_list_t)(struct rte_eth_dev *dev,
1184 struct ether_addr *mc_addr_set,
1185 uint32_t nb_mc_addr);
1186 /**< @internal set the list of multicast addresses on an Ethernet device */
1188 typedef int (*eth_timesync_enable_t)(struct rte_eth_dev *dev);
1189 /**< @internal Function used to enable IEEE1588/802.1AS timestamping. */
1191 typedef int (*eth_timesync_disable_t)(struct rte_eth_dev *dev);
1192 /**< @internal Function used to disable IEEE1588/802.1AS timestamping. */
1194 typedef int (*eth_timesync_read_rx_timestamp_t)(struct rte_eth_dev *dev,
1195 struct timespec *timestamp,
1197 /**< @internal Function used to read an RX IEEE1588/802.1AS timestamp. */
1199 typedef int (*eth_timesync_read_tx_timestamp_t)(struct rte_eth_dev *dev,
1200 struct timespec *timestamp);
1201 /**< @internal Function used to read a TX IEEE1588/802.1AS timestamp. */
1203 typedef int (*eth_get_reg_length_t)(struct rte_eth_dev *dev);
1204 /**< @internal Retrieve device register count */
1206 typedef int (*eth_get_reg_t)(struct rte_eth_dev *dev,
1207 struct rte_dev_reg_info *info);
1208 /**< @internal Retrieve registers */
1210 typedef int (*eth_get_eeprom_length_t)(struct rte_eth_dev *dev);
1211 /**< @internal Retrieve eeprom size */
1213 typedef int (*eth_get_eeprom_t)(struct rte_eth_dev *dev,
1214 struct rte_dev_eeprom_info *info);
1215 /**< @internal Retrieve eeprom data */
1217 typedef int (*eth_set_eeprom_t)(struct rte_eth_dev *dev,
1218 struct rte_dev_eeprom_info *info);
1219 /**< @internal Program eeprom data */
1221 #ifdef RTE_NIC_BYPASS
1224 RTE_BYPASS_MODE_NONE,
1225 RTE_BYPASS_MODE_NORMAL,
1226 RTE_BYPASS_MODE_BYPASS,
1227 RTE_BYPASS_MODE_ISOLATE,
1228 RTE_BYPASS_MODE_NUM,
1231 #define RTE_BYPASS_MODE_VALID(x) \
1232 ((x) > RTE_BYPASS_MODE_NONE && (x) < RTE_BYPASS_MODE_NUM)
1235 RTE_BYPASS_EVENT_NONE,
1236 RTE_BYPASS_EVENT_START,
1237 RTE_BYPASS_EVENT_OS_ON = RTE_BYPASS_EVENT_START,
1238 RTE_BYPASS_EVENT_POWER_ON,
1239 RTE_BYPASS_EVENT_OS_OFF,
1240 RTE_BYPASS_EVENT_POWER_OFF,
1241 RTE_BYPASS_EVENT_TIMEOUT,
1242 RTE_BYPASS_EVENT_NUM
1245 #define RTE_BYPASS_EVENT_VALID(x) \
1246 ((x) > RTE_BYPASS_EVENT_NONE && (x) < RTE_BYPASS_MODE_NUM)
1249 RTE_BYPASS_TMT_OFF, /* timeout disabled. */
1250 RTE_BYPASS_TMT_1_5_SEC, /* timeout for 1.5 seconds */
1251 RTE_BYPASS_TMT_2_SEC, /* timeout for 2 seconds */
1252 RTE_BYPASS_TMT_3_SEC, /* timeout for 3 seconds */
1253 RTE_BYPASS_TMT_4_SEC, /* timeout for 4 seconds */
1254 RTE_BYPASS_TMT_8_SEC, /* timeout for 8 seconds */
1255 RTE_BYPASS_TMT_16_SEC, /* timeout for 16 seconds */
1256 RTE_BYPASS_TMT_32_SEC, /* timeout for 32 seconds */
1260 #define RTE_BYPASS_TMT_VALID(x) \
1261 ((x) == RTE_BYPASS_TMT_OFF || \
1262 ((x) > RTE_BYPASS_TMT_OFF && (x) < RTE_BYPASS_TMT_NUM))
1264 typedef void (*bypass_init_t)(struct rte_eth_dev *dev);
1265 typedef int32_t (*bypass_state_set_t)(struct rte_eth_dev *dev, uint32_t *new_state);
1266 typedef int32_t (*bypass_state_show_t)(struct rte_eth_dev *dev, uint32_t *state);
1267 typedef int32_t (*bypass_event_set_t)(struct rte_eth_dev *dev, uint32_t state, uint32_t event);
1268 typedef int32_t (*bypass_event_show_t)(struct rte_eth_dev *dev, uint32_t event_shift, uint32_t *event);
1269 typedef int32_t (*bypass_wd_timeout_set_t)(struct rte_eth_dev *dev, uint32_t timeout);
1270 typedef int32_t (*bypass_wd_timeout_show_t)(struct rte_eth_dev *dev, uint32_t *wd_timeout);
1271 typedef int32_t (*bypass_ver_show_t)(struct rte_eth_dev *dev, uint32_t *ver);
1272 typedef int32_t (*bypass_wd_reset_t)(struct rte_eth_dev *dev);
1275 typedef int (*eth_filter_ctrl_t)(struct rte_eth_dev *dev,
1276 enum rte_filter_type filter_type,
1277 enum rte_filter_op filter_op,
1279 /**< @internal Take operations to assigned filter type on an Ethernet device */
1281 typedef int (*eth_get_dcb_info)(struct rte_eth_dev *dev,
1282 struct rte_eth_dcb_info *dcb_info);
1283 /**< @internal Get dcb information on an Ethernet device */
1286 * @internal A structure containing the functions exported by an Ethernet driver.
1288 struct eth_dev_ops {
1289 eth_dev_configure_t dev_configure; /**< Configure device. */
1290 eth_dev_start_t dev_start; /**< Start device. */
1291 eth_dev_stop_t dev_stop; /**< Stop device. */
1292 eth_dev_set_link_up_t dev_set_link_up; /**< Device link up. */
1293 eth_dev_set_link_down_t dev_set_link_down; /**< Device link down. */
1294 eth_dev_close_t dev_close; /**< Close device. */
1295 eth_promiscuous_enable_t promiscuous_enable; /**< Promiscuous ON. */
1296 eth_promiscuous_disable_t promiscuous_disable;/**< Promiscuous OFF. */
1297 eth_allmulticast_enable_t allmulticast_enable;/**< RX multicast ON. */
1298 eth_allmulticast_disable_t allmulticast_disable;/**< RX multicast OF. */
1299 eth_link_update_t link_update; /**< Get device link state. */
1300 eth_stats_get_t stats_get; /**< Get generic device statistics. */
1301 eth_stats_reset_t stats_reset; /**< Reset generic device statistics. */
1302 eth_xstats_get_t xstats_get; /**< Get extended device statistics. */
1303 eth_xstats_reset_t xstats_reset; /**< Reset extended device statistics. */
1304 eth_queue_stats_mapping_set_t queue_stats_mapping_set;
1305 /**< Configure per queue stat counter mapping. */
1306 eth_dev_infos_get_t dev_infos_get; /**< Get device info. */
1307 mtu_set_t mtu_set; /**< Set MTU. */
1308 vlan_filter_set_t vlan_filter_set; /**< Filter VLAN Setup. */
1309 vlan_tpid_set_t vlan_tpid_set; /**< Outer VLAN TPID Setup. */
1310 vlan_strip_queue_set_t vlan_strip_queue_set; /**< VLAN Stripping on queue. */
1311 vlan_offload_set_t vlan_offload_set; /**< Set VLAN Offload. */
1312 vlan_pvid_set_t vlan_pvid_set; /**< Set port based TX VLAN insertion */
1313 eth_queue_start_t rx_queue_start;/**< Start RX for a queue.*/
1314 eth_queue_stop_t rx_queue_stop;/**< Stop RX for a queue.*/
1315 eth_queue_start_t tx_queue_start;/**< Start TX for a queue.*/
1316 eth_queue_stop_t tx_queue_stop;/**< Stop TX for a queue.*/
1317 eth_rx_queue_setup_t rx_queue_setup;/**< Set up device RX queue.*/
1318 eth_queue_release_t rx_queue_release;/**< Release RX queue.*/
1319 eth_rx_queue_count_t rx_queue_count; /**< Get Rx queue count. */
1320 eth_rx_descriptor_done_t rx_descriptor_done; /**< Check rxd DD bit */
1321 /**< Enable Rx queue interrupt. */
1322 eth_rx_enable_intr_t rx_queue_intr_enable;
1323 /**< Disable Rx queue interrupt.*/
1324 eth_rx_disable_intr_t rx_queue_intr_disable;
1325 eth_tx_queue_setup_t tx_queue_setup;/**< Set up device TX queue.*/
1326 eth_queue_release_t tx_queue_release;/**< Release TX queue.*/
1327 eth_dev_led_on_t dev_led_on; /**< Turn on LED. */
1328 eth_dev_led_off_t dev_led_off; /**< Turn off LED. */
1329 flow_ctrl_get_t flow_ctrl_get; /**< Get flow control. */
1330 flow_ctrl_set_t flow_ctrl_set; /**< Setup flow control. */
1331 priority_flow_ctrl_set_t priority_flow_ctrl_set; /**< Setup priority flow control.*/
1332 eth_mac_addr_remove_t mac_addr_remove; /**< Remove MAC address */
1333 eth_mac_addr_add_t mac_addr_add; /**< Add a MAC address */
1334 eth_mac_addr_set_t mac_addr_set; /**< Set a MAC address */
1335 eth_uc_hash_table_set_t uc_hash_table_set; /**< Set Unicast Table Array */
1336 eth_uc_all_hash_table_set_t uc_all_hash_table_set; /**< Set Unicast hash bitmap */
1337 eth_mirror_rule_set_t mirror_rule_set; /**< Add a traffic mirror rule.*/
1338 eth_mirror_rule_reset_t mirror_rule_reset; /**< reset a traffic mirror rule.*/
1339 eth_set_vf_rx_mode_t set_vf_rx_mode; /**< Set VF RX mode */
1340 eth_set_vf_rx_t set_vf_rx; /**< enable/disable a VF receive */
1341 eth_set_vf_tx_t set_vf_tx; /**< enable/disable a VF transmit */
1342 eth_set_vf_vlan_filter_t set_vf_vlan_filter; /**< Set VF VLAN filter */
1343 eth_udp_tunnel_add_t udp_tunnel_add;
1344 eth_udp_tunnel_del_t udp_tunnel_del;
1345 eth_set_queue_rate_limit_t set_queue_rate_limit; /**< Set queue rate limit */
1346 eth_set_vf_rate_limit_t set_vf_rate_limit; /**< Set VF rate limit */
1347 /** Update redirection table. */
1348 reta_update_t reta_update;
1349 /** Query redirection table. */
1350 reta_query_t reta_query;
1352 eth_get_reg_length_t get_reg_length;
1353 /**< Get # of registers */
1354 eth_get_reg_t get_reg;
1355 /**< Get registers */
1356 eth_get_eeprom_length_t get_eeprom_length;
1357 /**< Get eeprom length */
1358 eth_get_eeprom_t get_eeprom;
1359 /**< Get eeprom data */
1360 eth_set_eeprom_t set_eeprom;
1362 /* bypass control */
1363 #ifdef RTE_NIC_BYPASS
1364 bypass_init_t bypass_init;
1365 bypass_state_set_t bypass_state_set;
1366 bypass_state_show_t bypass_state_show;
1367 bypass_event_set_t bypass_event_set;
1368 bypass_event_show_t bypass_event_show;
1369 bypass_wd_timeout_set_t bypass_wd_timeout_set;
1370 bypass_wd_timeout_show_t bypass_wd_timeout_show;
1371 bypass_ver_show_t bypass_ver_show;
1372 bypass_wd_reset_t bypass_wd_reset;
1375 /** Configure RSS hash protocols. */
1376 rss_hash_update_t rss_hash_update;
1377 /** Get current RSS hash configuration. */
1378 rss_hash_conf_get_t rss_hash_conf_get;
1379 eth_filter_ctrl_t filter_ctrl;
1380 /**< common filter control. */
1381 eth_set_mc_addr_list_t set_mc_addr_list; /**< set list of mcast addrs */
1382 eth_rxq_info_get_t rxq_info_get;
1383 /**< retrieve RX queue information. */
1384 eth_txq_info_get_t txq_info_get;
1385 /**< retrieve TX queue information. */
1386 /** Turn IEEE1588/802.1AS timestamping on. */
1387 eth_timesync_enable_t timesync_enable;
1388 /** Turn IEEE1588/802.1AS timestamping off. */
1389 eth_timesync_disable_t timesync_disable;
1390 /** Read the IEEE1588/802.1AS RX timestamp. */
1391 eth_timesync_read_rx_timestamp_t timesync_read_rx_timestamp;
1392 /** Read the IEEE1588/802.1AS TX timestamp. */
1393 eth_timesync_read_tx_timestamp_t timesync_read_tx_timestamp;
1395 /** Get DCB information */
1396 eth_get_dcb_info get_dcb_info;
1400 * Function type used for RX packet processing packet callbacks.
1402 * The callback function is called on RX with a burst of packets that have
1403 * been received on the given port and queue.
1406 * The Ethernet port on which RX is being performed.
1408 * The queue on the Ethernet port which is being used to receive the packets.
1410 * The burst of packets that have just been received.
1412 * The number of packets in the burst pointed to by "pkts".
1414 * The max number of packets that can be stored in the "pkts" array.
1416 * The arbitrary user parameter passed in by the application when the callback
1417 * was originally configured.
1419 * The number of packets returned to the user.
1421 typedef uint16_t (*rte_rx_callback_fn)(uint8_t port, uint16_t queue,
1422 struct rte_mbuf *pkts[], uint16_t nb_pkts, uint16_t max_pkts,
1426 * Function type used for TX packet processing packet callbacks.
1428 * The callback function is called on TX with a burst of packets immediately
1429 * before the packets are put onto the hardware queue for transmission.
1432 * The Ethernet port on which TX is being performed.
1434 * The queue on the Ethernet port which is being used to transmit the packets.
1436 * The burst of packets that are about to be transmitted.
1438 * The number of packets in the burst pointed to by "pkts".
1440 * The arbitrary user parameter passed in by the application when the callback
1441 * was originally configured.
1443 * The number of packets to be written to the NIC.
1445 typedef uint16_t (*rte_tx_callback_fn)(uint8_t port, uint16_t queue,
1446 struct rte_mbuf *pkts[], uint16_t nb_pkts, void *user_param);
1450 * Structure used to hold information about the callbacks to be called for a
1451 * queue on RX and TX.
1453 struct rte_eth_rxtx_callback {
1454 struct rte_eth_rxtx_callback *next;
1456 rte_rx_callback_fn rx;
1457 rte_tx_callback_fn tx;
1463 * The eth device type.
1465 enum rte_eth_dev_type {
1466 RTE_ETH_DEV_UNKNOWN, /**< unknown device type */
1468 /**< Physical function and Virtual function of PCI devices */
1469 RTE_ETH_DEV_VIRTUAL, /**< non hardware device */
1470 RTE_ETH_DEV_MAX /**< max value of this enum */
1475 * The generic data structure associated with each ethernet device.
1477 * Pointers to burst-oriented packet receive and transmit functions are
1478 * located at the beginning of the structure, along with the pointer to
1479 * where all the data elements for the particular device are stored in shared
1480 * memory. This split allows the function pointer and driver data to be per-
1481 * process, while the actual configuration data for the device is shared.
1483 struct rte_eth_dev {
1484 eth_rx_burst_t rx_pkt_burst; /**< Pointer to PMD receive function. */
1485 eth_tx_burst_t tx_pkt_burst; /**< Pointer to PMD transmit function. */
1486 struct rte_eth_dev_data *data; /**< Pointer to device data */
1487 const struct eth_driver *driver;/**< Driver for this device */
1488 const struct eth_dev_ops *dev_ops; /**< Functions exported by PMD */
1489 struct rte_pci_device *pci_dev; /**< PCI info. supplied by probing */
1490 /** User application callbacks for NIC interrupts */
1491 struct rte_eth_dev_cb_list link_intr_cbs;
1493 * User-supplied functions called from rx_burst to post-process
1494 * received packets before passing them to the user
1496 struct rte_eth_rxtx_callback *post_rx_burst_cbs[RTE_MAX_QUEUES_PER_PORT];
1498 * User-supplied functions called from tx_burst to pre-process
1499 * received packets before passing them to the driver for transmission.
1501 struct rte_eth_rxtx_callback *pre_tx_burst_cbs[RTE_MAX_QUEUES_PER_PORT];
1502 uint8_t attached; /**< Flag indicating the port is attached */
1503 enum rte_eth_dev_type dev_type; /**< Flag indicating the device type */
1506 struct rte_eth_dev_sriov {
1507 uint8_t active; /**< SRIOV is active with 16, 32 or 64 pools */
1508 uint8_t nb_q_per_pool; /**< rx queue number per pool */
1509 uint16_t def_vmdq_idx; /**< Default pool num used for PF */
1510 uint16_t def_pool_q_idx; /**< Default pool queue start reg index */
1512 #define RTE_ETH_DEV_SRIOV(dev) ((dev)->data->sriov)
1514 #define RTE_ETH_NAME_MAX_LEN (32)
1518 * The data part, with no function pointers, associated with each ethernet device.
1520 * This structure is safe to place in shared memory to be common among different
1521 * processes in a multi-process configuration.
1523 struct rte_eth_dev_data {
1524 char name[RTE_ETH_NAME_MAX_LEN]; /**< Unique identifier name */
1526 void **rx_queues; /**< Array of pointers to RX queues. */
1527 void **tx_queues; /**< Array of pointers to TX queues. */
1528 uint16_t nb_rx_queues; /**< Number of RX queues. */
1529 uint16_t nb_tx_queues; /**< Number of TX queues. */
1531 struct rte_eth_dev_sriov sriov; /**< SRIOV data */
1533 void *dev_private; /**< PMD-specific private data */
1535 struct rte_eth_link dev_link;
1536 /**< Link-level information & status */
1538 struct rte_eth_conf dev_conf; /**< Configuration applied to device. */
1539 uint16_t mtu; /**< Maximum Transmission Unit. */
1541 uint32_t min_rx_buf_size;
1542 /**< Common rx buffer size handled by all queues */
1544 uint64_t rx_mbuf_alloc_failed; /**< RX ring mbuf allocation failures. */
1545 struct ether_addr* mac_addrs;/**< Device Ethernet Link address. */
1546 uint64_t mac_pool_sel[ETH_NUM_RECEIVE_MAC_ADDR];
1547 /** bitmap array of associating Ethernet MAC addresses to pools */
1548 struct ether_addr* hash_mac_addrs;
1549 /** Device Ethernet MAC addresses of hash filtering. */
1550 uint8_t port_id; /**< Device [external] port identifier. */
1551 uint8_t promiscuous : 1, /**< RX promiscuous mode ON(1) / OFF(0). */
1552 scattered_rx : 1, /**< RX of scattered packets is ON(1) / OFF(0) */
1553 all_multicast : 1, /**< RX all multicast mode ON(1) / OFF(0). */
1554 dev_started : 1, /**< Device state: STARTED(1) / STOPPED(0). */
1555 lro : 1; /**< RX LRO is ON(1) / OFF(0) */
1556 uint32_t dev_flags; /**< Capabilities */
1557 enum rte_kernel_driver kdrv; /**< Kernel driver passthrough */
1558 int numa_node; /**< NUMA node connection */
1559 const char *drv_name; /**< Driver name */
1562 /** Device supports hotplug detach */
1563 #define RTE_ETH_DEV_DETACHABLE 0x0001
1564 /** Device supports link state interrupt */
1565 #define RTE_ETH_DEV_INTR_LSC 0x0002
1569 * The pool of *rte_eth_dev* structures. The size of the pool
1570 * is configured at compile-time in the <rte_ethdev.c> file.
1572 extern struct rte_eth_dev rte_eth_devices[];
1575 * Get the total number of Ethernet devices that have been successfully
1576 * initialized by the [matching] Ethernet driver during the PCI probing phase.
1577 * All devices whose port identifier is in the range
1578 * [0, rte_eth_dev_count() - 1] can be operated on by network applications
1579 * immediately after invoking rte_eal_init().
1580 * If the application unplugs a port using hotplug function, The enabled port
1581 * numbers may be noncontiguous. In the case, the applications need to manage
1582 * enabled port by themselves.
1585 * - The total number of usable Ethernet devices.
1587 extern uint8_t rte_eth_dev_count(void);
1591 * Returns a ethdev slot specified by the unique identifier name.
1594 * The pointer to the Unique identifier name for each Ethernet device
1596 * - The pointer to the ethdev slot, on success. NULL on error
1598 extern struct rte_eth_dev *rte_eth_dev_allocated(const char *name);
1602 * Allocates a new ethdev slot for an ethernet device and returns the pointer
1603 * to that slot for the driver to use.
1605 * @param name Unique identifier name for each Ethernet device
1606 * @param type Device type of this Ethernet device
1608 * - Slot in the rte_dev_devices array for a new device;
1610 struct rte_eth_dev *rte_eth_dev_allocate(const char *name,
1611 enum rte_eth_dev_type type);
1615 * Release the specified ethdev port.
1618 * The *eth_dev* pointer is the address of the *rte_eth_dev* structure.
1620 * - 0 on success, negative on error
1622 int rte_eth_dev_release_port(struct rte_eth_dev *eth_dev);
1625 * Attach a new Ethernet device specified by aruguments.
1628 * A pointer to a strings array describing the new device
1629 * to be attached. The strings should be a pci address like
1630 * '0000:01:00.0' or virtual device name like 'eth_pcap0'.
1632 * A pointer to a port identifier actually attached.
1634 * 0 on success and port_id is filled, negative on error
1636 int rte_eth_dev_attach(const char *devargs, uint8_t *port_id);
1639 * Detach a Ethernet device specified by port identifier.
1640 * This function must be called when the device is in the
1644 * The port identifier of the device to detach.
1646 * A pointer to a device name actually detached.
1648 * 0 on success and devname is filled, negative on error
1650 int rte_eth_dev_detach(uint8_t port_id, char *devname);
1655 * Initialization function of an Ethernet driver invoked for each matching
1656 * Ethernet PCI device detected during the PCI probing phase.
1659 * The *eth_dev* pointer is the address of the *rte_eth_dev* structure
1660 * associated with the matching device and which have been [automatically]
1661 * allocated in the *rte_eth_devices* array.
1662 * The *eth_dev* structure is supplied to the driver initialization function
1663 * with the following fields already initialized:
1665 * - *pci_dev*: Holds the pointers to the *rte_pci_device* structure which
1666 * contains the generic PCI information of the matching device.
1668 * - *driver*: Holds the pointer to the *eth_driver* structure.
1670 * - *dev_private*: Holds a pointer to the device private data structure.
1672 * - *mtu*: Contains the default Ethernet maximum frame length (1500).
1674 * - *port_id*: Contains the port index of the device (actually the index
1675 * of the *eth_dev* structure in the *rte_eth_devices* array).
1678 * - 0: Success, the device is properly initialized by the driver.
1679 * In particular, the driver MUST have set up the *dev_ops* pointer
1680 * of the *eth_dev* structure.
1681 * - <0: Error code of the device initialization failure.
1683 typedef int (*eth_dev_init_t)(struct rte_eth_dev *eth_dev);
1687 * Finalization function of an Ethernet driver invoked for each matching
1688 * Ethernet PCI device detected during the PCI closing phase.
1691 * The *eth_dev* pointer is the address of the *rte_eth_dev* structure
1692 * associated with the matching device and which have been [automatically]
1693 * allocated in the *rte_eth_devices* array.
1695 * - 0: Success, the device is properly finalized by the driver.
1696 * In particular, the driver MUST free the *dev_ops* pointer
1697 * of the *eth_dev* structure.
1698 * - <0: Error code of the device initialization failure.
1700 typedef int (*eth_dev_uninit_t)(struct rte_eth_dev *eth_dev);
1704 * The structure associated with a PMD Ethernet driver.
1706 * Each Ethernet driver acts as a PCI driver and is represented by a generic
1707 * *eth_driver* structure that holds:
1709 * - An *rte_pci_driver* structure (which must be the first field).
1711 * - The *eth_dev_init* function invoked for each matching PCI device.
1713 * - The *eth_dev_uninit* function invoked for each matching PCI device.
1715 * - The size of the private data to allocate for each matching device.
1718 struct rte_pci_driver pci_drv; /**< The PMD is also a PCI driver. */
1719 eth_dev_init_t eth_dev_init; /**< Device init function. */
1720 eth_dev_uninit_t eth_dev_uninit; /**< Device uninit function. */
1721 unsigned int dev_private_size; /**< Size of device private data. */
1726 * A function invoked by the initialization function of an Ethernet driver
1727 * to simultaneously register itself as a PCI driver and as an Ethernet
1728 * Poll Mode Driver (PMD).
1731 * The pointer to the *eth_driver* structure associated with
1732 * the Ethernet driver.
1734 extern void rte_eth_driver_register(struct eth_driver *eth_drv);
1737 * Configure an Ethernet device.
1738 * This function must be invoked first before any other function in the
1739 * Ethernet API. This function can also be re-invoked when a device is in the
1743 * The port identifier of the Ethernet device to configure.
1744 * @param nb_rx_queue
1745 * The number of receive queues to set up for the Ethernet device.
1746 * @param nb_tx_queue
1747 * The number of transmit queues to set up for the Ethernet device.
1749 * The pointer to the configuration data to be used for the Ethernet device.
1750 * The *rte_eth_conf* structure includes:
1751 * - the hardware offload features to activate, with dedicated fields for
1752 * each statically configurable offload hardware feature provided by
1753 * Ethernet devices, such as IP checksum or VLAN tag stripping for
1755 * - the Receive Side Scaling (RSS) configuration when using multiple RX
1758 * Embedding all configuration information in a single data structure
1759 * is the more flexible method that allows the addition of new features
1760 * without changing the syntax of the API.
1762 * - 0: Success, device configured.
1763 * - <0: Error code returned by the driver configuration function.
1765 extern int rte_eth_dev_configure(uint8_t port_id,
1766 uint16_t nb_rx_queue,
1767 uint16_t nb_tx_queue,
1768 const struct rte_eth_conf *eth_conf);
1771 * Allocate and set up a receive queue for an Ethernet device.
1773 * The function allocates a contiguous block of memory for *nb_rx_desc*
1774 * receive descriptors from a memory zone associated with *socket_id*
1775 * and initializes each receive descriptor with a network buffer allocated
1776 * from the memory pool *mb_pool*.
1779 * The port identifier of the Ethernet device.
1780 * @param rx_queue_id
1781 * The index of the receive queue to set up.
1782 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
1783 * to rte_eth_dev_configure().
1785 * The number of receive descriptors to allocate for the receive ring.
1787 * The *socket_id* argument is the socket identifier in case of NUMA.
1788 * The value can be *SOCKET_ID_ANY* if there is no NUMA constraint for
1789 * the DMA memory allocated for the receive descriptors of the ring.
1791 * The pointer to the configuration data to be used for the receive queue.
1792 * NULL value is allowed, in which case default RX configuration
1794 * The *rx_conf* structure contains an *rx_thresh* structure with the values
1795 * of the Prefetch, Host, and Write-Back threshold registers of the receive
1798 * The pointer to the memory pool from which to allocate *rte_mbuf* network
1799 * memory buffers to populate each descriptor of the receive ring.
1801 * - 0: Success, receive queue correctly set up.
1802 * - -EINVAL: The size of network buffers which can be allocated from the
1803 * memory pool does not fit the various buffer sizes allowed by the
1804 * device controller.
1805 * - -ENOMEM: Unable to allocate the receive ring descriptors or to
1806 * allocate network memory buffers from the memory pool when
1807 * initializing receive descriptors.
1809 extern int rte_eth_rx_queue_setup(uint8_t port_id, uint16_t rx_queue_id,
1810 uint16_t nb_rx_desc, unsigned int socket_id,
1811 const struct rte_eth_rxconf *rx_conf,
1812 struct rte_mempool *mb_pool);
1815 * Allocate and set up a transmit queue for an Ethernet device.
1818 * The port identifier of the Ethernet device.
1819 * @param tx_queue_id
1820 * The index of the transmit queue to set up.
1821 * The value must be in the range [0, nb_tx_queue - 1] previously supplied
1822 * to rte_eth_dev_configure().
1824 * The number of transmit descriptors to allocate for the transmit ring.
1826 * The *socket_id* argument is the socket identifier in case of NUMA.
1827 * Its value can be *SOCKET_ID_ANY* if there is no NUMA constraint for
1828 * the DMA memory allocated for the transmit descriptors of the ring.
1830 * The pointer to the configuration data to be used for the transmit queue.
1831 * NULL value is allowed, in which case default RX configuration
1833 * The *tx_conf* structure contains the following data:
1834 * - The *tx_thresh* structure with the values of the Prefetch, Host, and
1835 * Write-Back threshold registers of the transmit ring.
1836 * When setting Write-Back threshold to the value greater then zero,
1837 * *tx_rs_thresh* value should be explicitly set to one.
1838 * - The *tx_free_thresh* value indicates the [minimum] number of network
1839 * buffers that must be pending in the transmit ring to trigger their
1840 * [implicit] freeing by the driver transmit function.
1841 * - The *tx_rs_thresh* value indicates the [minimum] number of transmit
1842 * descriptors that must be pending in the transmit ring before setting the
1843 * RS bit on a descriptor by the driver transmit function.
1844 * The *tx_rs_thresh* value should be less or equal then
1845 * *tx_free_thresh* value, and both of them should be less then
1847 * - The *txq_flags* member contains flags to pass to the TX queue setup
1848 * function to configure the behavior of the TX queue. This should be set
1849 * to 0 if no special configuration is required.
1851 * Note that setting *tx_free_thresh* or *tx_rs_thresh* value to 0 forces
1852 * the transmit function to use default values.
1854 * - 0: Success, the transmit queue is correctly set up.
1855 * - -ENOMEM: Unable to allocate the transmit ring descriptors.
1857 extern int rte_eth_tx_queue_setup(uint8_t port_id, uint16_t tx_queue_id,
1858 uint16_t nb_tx_desc, unsigned int socket_id,
1859 const struct rte_eth_txconf *tx_conf);
1862 * Return the NUMA socket to which an Ethernet device is connected
1865 * The port identifier of the Ethernet device
1867 * The NUMA socket id to which the Ethernet device is connected or
1868 * a default of zero if the socket could not be determined.
1869 * -1 is returned is the port_id value is out of range.
1871 extern int rte_eth_dev_socket_id(uint8_t port_id);
1874 * Check if port_id of device is attached
1877 * The port identifier of the Ethernet device
1879 * - 0 if port is out of range or not attached
1880 * - 1 if device is attached
1882 extern int rte_eth_dev_is_valid_port(uint8_t port_id);
1885 * Allocate mbuf from mempool, setup the DMA physical address
1886 * and then start RX for specified queue of a port. It is used
1887 * when rx_deferred_start flag of the specified queue is true.
1890 * The port identifier of the Ethernet device
1891 * @param rx_queue_id
1892 * The index of the rx queue to update the ring.
1893 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
1894 * to rte_eth_dev_configure().
1896 * - 0: Success, the transmit queue is correctly set up.
1897 * - -EINVAL: The port_id or the queue_id out of range.
1898 * - -ENOTSUP: The function not supported in PMD driver.
1900 extern int rte_eth_dev_rx_queue_start(uint8_t port_id, uint16_t rx_queue_id);
1903 * Stop specified RX queue of a port
1906 * The port identifier of the Ethernet device
1907 * @param rx_queue_id
1908 * The index of the rx queue to update the ring.
1909 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
1910 * to rte_eth_dev_configure().
1912 * - 0: Success, the transmit queue is correctly set up.
1913 * - -EINVAL: The port_id or the queue_id out of range.
1914 * - -ENOTSUP: The function not supported in PMD driver.
1916 extern int rte_eth_dev_rx_queue_stop(uint8_t port_id, uint16_t rx_queue_id);
1919 * Start TX for specified queue of a port. It is used when tx_deferred_start
1920 * flag of the specified queue is true.
1923 * The port identifier of the Ethernet device
1924 * @param tx_queue_id
1925 * The index of the tx queue to update the ring.
1926 * The value must be in the range [0, nb_tx_queue - 1] previously supplied
1927 * to rte_eth_dev_configure().
1929 * - 0: Success, the transmit queue is correctly set up.
1930 * - -EINVAL: The port_id or the queue_id out of range.
1931 * - -ENOTSUP: The function not supported in PMD driver.
1933 extern int rte_eth_dev_tx_queue_start(uint8_t port_id, uint16_t tx_queue_id);
1936 * Stop specified TX queue of a port
1939 * The port identifier of the Ethernet device
1940 * @param tx_queue_id
1941 * The index of the tx queue to update the ring.
1942 * The value must be in the range [0, nb_tx_queue - 1] previously supplied
1943 * to rte_eth_dev_configure().
1945 * - 0: Success, the transmit queue is correctly set up.
1946 * - -EINVAL: The port_id or the queue_id out of range.
1947 * - -ENOTSUP: The function not supported in PMD driver.
1949 extern int rte_eth_dev_tx_queue_stop(uint8_t port_id, uint16_t tx_queue_id);
1954 * Start an Ethernet device.
1956 * The device start step is the last one and consists of setting the configured
1957 * offload features and in starting the transmit and the receive units of the
1959 * On success, all basic functions exported by the Ethernet API (link status,
1960 * receive/transmit, and so on) can be invoked.
1963 * The port identifier of the Ethernet device.
1965 * - 0: Success, Ethernet device started.
1966 * - <0: Error code of the driver device start function.
1968 extern int rte_eth_dev_start(uint8_t port_id);
1971 * Stop an Ethernet device. The device can be restarted with a call to
1972 * rte_eth_dev_start()
1975 * The port identifier of the Ethernet device.
1977 extern void rte_eth_dev_stop(uint8_t port_id);
1981 * Link up an Ethernet device.
1983 * Set device link up will re-enable the device rx/tx
1984 * functionality after it is previously set device linked down.
1987 * The port identifier of the Ethernet device.
1989 * - 0: Success, Ethernet device linked up.
1990 * - <0: Error code of the driver device link up function.
1992 extern int rte_eth_dev_set_link_up(uint8_t port_id);
1995 * Link down an Ethernet device.
1996 * The device rx/tx functionality will be disabled if success,
1997 * and it can be re-enabled with a call to
1998 * rte_eth_dev_set_link_up()
2001 * The port identifier of the Ethernet device.
2003 extern int rte_eth_dev_set_link_down(uint8_t port_id);
2006 * Close a stopped Ethernet device. The device cannot be restarted!
2007 * The function frees all resources except for needed by the
2008 * closed state. To free these resources, call rte_eth_dev_detach().
2011 * The port identifier of the Ethernet device.
2013 extern void rte_eth_dev_close(uint8_t port_id);
2016 * Enable receipt in promiscuous mode for an Ethernet device.
2019 * The port identifier of the Ethernet device.
2021 extern void rte_eth_promiscuous_enable(uint8_t port_id);
2024 * Disable receipt in promiscuous mode for an Ethernet device.
2027 * The port identifier of the Ethernet device.
2029 extern void rte_eth_promiscuous_disable(uint8_t port_id);
2032 * Return the value of promiscuous mode for an Ethernet device.
2035 * The port identifier of the Ethernet device.
2037 * - (1) if promiscuous is enabled
2038 * - (0) if promiscuous is disabled.
2041 extern int rte_eth_promiscuous_get(uint8_t port_id);
2044 * Enable the receipt of any multicast frame by an Ethernet device.
2047 * The port identifier of the Ethernet device.
2049 extern void rte_eth_allmulticast_enable(uint8_t port_id);
2052 * Disable the receipt of all multicast frames by an Ethernet device.
2055 * The port identifier of the Ethernet device.
2057 extern void rte_eth_allmulticast_disable(uint8_t port_id);
2060 * Return the value of allmulticast mode for an Ethernet device.
2063 * The port identifier of the Ethernet device.
2065 * - (1) if allmulticast is enabled
2066 * - (0) if allmulticast is disabled.
2069 extern int rte_eth_allmulticast_get(uint8_t port_id);
2072 * Retrieve the status (ON/OFF), the speed (in Mbps) and the mode (HALF-DUPLEX
2073 * or FULL-DUPLEX) of the physical link of an Ethernet device. It might need
2074 * to wait up to 9 seconds in it.
2077 * The port identifier of the Ethernet device.
2079 * A pointer to an *rte_eth_link* structure to be filled with
2080 * the status, the speed and the mode of the Ethernet device link.
2082 extern void rte_eth_link_get(uint8_t port_id, struct rte_eth_link *link);
2085 * Retrieve the status (ON/OFF), the speed (in Mbps) and the mode (HALF-DUPLEX
2086 * or FULL-DUPLEX) of the physical link of an Ethernet device. It is a no-wait
2087 * version of rte_eth_link_get().
2090 * The port identifier of the Ethernet device.
2092 * A pointer to an *rte_eth_link* structure to be filled with
2093 * the status, the speed and the mode of the Ethernet device link.
2095 extern void rte_eth_link_get_nowait(uint8_t port_id,
2096 struct rte_eth_link *link);
2099 * Retrieve the general I/O statistics of an Ethernet device.
2102 * The port identifier of the Ethernet device.
2104 * A pointer to a structure of type *rte_eth_stats* to be filled with
2105 * the values of device counters for the following set of statistics:
2106 * - *ipackets* with the total of successfully received packets.
2107 * - *opackets* with the total of successfully transmitted packets.
2108 * - *ibytes* with the total of successfully received bytes.
2109 * - *obytes* with the total of successfully transmitted bytes.
2110 * - *ierrors* with the total of erroneous received packets.
2111 * - *oerrors* with the total of failed transmitted packets.
2113 * Zero if successful. Non-zero otherwise.
2115 extern int rte_eth_stats_get(uint8_t port_id, struct rte_eth_stats *stats);
2118 * Reset the general I/O statistics of an Ethernet device.
2121 * The port identifier of the Ethernet device.
2123 extern void rte_eth_stats_reset(uint8_t port_id);
2126 * Retrieve extended statistics of an Ethernet device.
2129 * The port identifier of the Ethernet device.
2131 * A pointer to a table of structure of type *rte_eth_xstats*
2132 * to be filled with device statistics names and values.
2133 * This parameter can be set to NULL if n is 0.
2135 * The size of the stats table, which should be large enough to store
2136 * all the statistics of the device.
2138 * - positive value lower or equal to n: success. The return value
2139 * is the number of entries filled in the stats table.
2140 * - positive value higher than n: error, the given statistics table
2141 * is too small. The return value corresponds to the size that should
2142 * be given to succeed. The entries in the table are not valid and
2143 * shall not be used by the caller.
2144 * - negative value on error (invalid port id)
2146 extern int rte_eth_xstats_get(uint8_t port_id,
2147 struct rte_eth_xstats *xstats, unsigned n);
2150 * Reset extended statistics of an Ethernet device.
2153 * The port identifier of the Ethernet device.
2155 extern void rte_eth_xstats_reset(uint8_t port_id);
2158 * Set a mapping for the specified transmit queue to the specified per-queue
2159 * statistics counter.
2162 * The port identifier of the Ethernet device.
2163 * @param tx_queue_id
2164 * The index of the transmit queue for which a queue stats mapping is required.
2165 * The value must be in the range [0, nb_tx_queue - 1] previously supplied
2166 * to rte_eth_dev_configure().
2168 * The per-queue packet statistics functionality number that the transmit
2169 * queue is to be assigned.
2170 * The value must be in the range [0, RTE_MAX_ETHPORT_QUEUE_STATS_MAPS - 1].
2172 * Zero if successful. Non-zero otherwise.
2174 extern int rte_eth_dev_set_tx_queue_stats_mapping(uint8_t port_id,
2175 uint16_t tx_queue_id,
2179 * Set a mapping for the specified receive queue to the specified per-queue
2180 * statistics counter.
2183 * The port identifier of the Ethernet device.
2184 * @param rx_queue_id
2185 * The index of the receive queue for which a queue stats mapping is required.
2186 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
2187 * to rte_eth_dev_configure().
2189 * The per-queue packet statistics functionality number that the receive
2190 * queue is to be assigned.
2191 * The value must be in the range [0, RTE_MAX_ETHPORT_QUEUE_STATS_MAPS - 1].
2193 * Zero if successful. Non-zero otherwise.
2195 extern int rte_eth_dev_set_rx_queue_stats_mapping(uint8_t port_id,
2196 uint16_t rx_queue_id,
2200 * Retrieve the Ethernet address of an Ethernet device.
2203 * The port identifier of the Ethernet device.
2205 * A pointer to a structure of type *ether_addr* to be filled with
2206 * the Ethernet address of the Ethernet device.
2208 extern void rte_eth_macaddr_get(uint8_t port_id, struct ether_addr *mac_addr);
2211 * Retrieve the contextual information of an Ethernet device.
2214 * The port identifier of the Ethernet device.
2216 * A pointer to a structure of type *rte_eth_dev_info* to be filled with
2217 * the contextual information of the Ethernet device.
2219 extern void rte_eth_dev_info_get(uint8_t port_id,
2220 struct rte_eth_dev_info *dev_info);
2223 * Retrieve the MTU of an Ethernet device.
2226 * The port identifier of the Ethernet device.
2228 * A pointer to a uint16_t where the retrieved MTU is to be stored.
2230 * - (0) if successful.
2231 * - (-ENODEV) if *port_id* invalid.
2233 extern int rte_eth_dev_get_mtu(uint8_t port_id, uint16_t *mtu);
2236 * Change the MTU of an Ethernet device.
2239 * The port identifier of the Ethernet device.
2241 * A uint16_t for the MTU to be applied.
2243 * - (0) if successful.
2244 * - (-ENOTSUP) if operation is not supported.
2245 * - (-ENODEV) if *port_id* invalid.
2246 * - (-EINVAL) if *mtu* invalid.
2248 extern int rte_eth_dev_set_mtu(uint8_t port_id, uint16_t mtu);
2251 * Enable/Disable hardware filtering by an Ethernet device of received
2252 * VLAN packets tagged with a given VLAN Tag Identifier.
2255 * The port identifier of the Ethernet device.
2257 * The VLAN Tag Identifier whose filtering must be enabled or disabled.
2259 * If > 0, enable VLAN filtering of VLAN packets tagged with *vlan_id*.
2260 * Otherwise, disable VLAN filtering of VLAN packets tagged with *vlan_id*.
2262 * - (0) if successful.
2263 * - (-ENOSUP) if hardware-assisted VLAN filtering not configured.
2264 * - (-ENODEV) if *port_id* invalid.
2265 * - (-ENOSYS) if VLAN filtering on *port_id* disabled.
2266 * - (-EINVAL) if *vlan_id* > 4095.
2268 extern int rte_eth_dev_vlan_filter(uint8_t port_id, uint16_t vlan_id , int on);
2271 * Enable/Disable hardware VLAN Strip by a rx queue of an Ethernet device.
2272 * 82599/X540/X550 can support VLAN stripping at the rx queue level
2275 * The port identifier of the Ethernet device.
2276 * @param rx_queue_id
2277 * The index of the receive queue for which a queue stats mapping is required.
2278 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
2279 * to rte_eth_dev_configure().
2281 * If 1, Enable VLAN Stripping of the receive queue of the Ethernet port.
2282 * If 0, Disable VLAN Stripping of the receive queue of the Ethernet port.
2284 * - (0) if successful.
2285 * - (-ENOSUP) if hardware-assisted VLAN stripping not configured.
2286 * - (-ENODEV) if *port_id* invalid.
2287 * - (-EINVAL) if *rx_queue_id* invalid.
2289 extern int rte_eth_dev_set_vlan_strip_on_queue(uint8_t port_id,
2290 uint16_t rx_queue_id, int on);
2293 * Set the Outer VLAN Ether Type by an Ethernet device, it can be inserted to
2294 * the VLAN Header. This is a register setup available on some Intel NIC, not
2295 * but all, please check the data sheet for availability.
2298 * The port identifier of the Ethernet device.
2300 * The Tag Protocol ID
2302 * - (0) if successful.
2303 * - (-ENOSUP) if hardware-assisted VLAN TPID setup is not supported.
2304 * - (-ENODEV) if *port_id* invalid.
2306 extern int rte_eth_dev_set_vlan_ether_type(uint8_t port_id, uint16_t tag_type);
2309 * Set VLAN offload configuration on an Ethernet device
2310 * Enable/Disable Extended VLAN by an Ethernet device, This is a register setup
2311 * available on some Intel NIC, not but all, please check the data sheet for
2313 * Enable/Disable VLAN Strip can be done on rx queue for certain NIC, but here
2314 * the configuration is applied on the port level.
2317 * The port identifier of the Ethernet device.
2318 * @param offload_mask
2319 * The VLAN Offload bit mask can be mixed use with "OR"
2320 * ETH_VLAN_STRIP_OFFLOAD
2321 * ETH_VLAN_FILTER_OFFLOAD
2322 * ETH_VLAN_EXTEND_OFFLOAD
2324 * - (0) if successful.
2325 * - (-ENOSUP) if hardware-assisted VLAN filtering not configured.
2326 * - (-ENODEV) if *port_id* invalid.
2328 extern int rte_eth_dev_set_vlan_offload(uint8_t port_id, int offload_mask);
2331 * Read VLAN Offload configuration from an Ethernet device
2334 * The port identifier of the Ethernet device.
2336 * - (>0) if successful. Bit mask to indicate
2337 * ETH_VLAN_STRIP_OFFLOAD
2338 * ETH_VLAN_FILTER_OFFLOAD
2339 * ETH_VLAN_EXTEND_OFFLOAD
2340 * - (-ENODEV) if *port_id* invalid.
2342 extern int rte_eth_dev_get_vlan_offload(uint8_t port_id);
2345 * Set port based TX VLAN insersion on or off.
2348 * The port identifier of the Ethernet device.
2350 * Port based TX VLAN identifier togeth with user priority.
2352 * Turn on or off the port based TX VLAN insertion.
2355 * - (0) if successful.
2356 * - negative if failed.
2358 extern int rte_eth_dev_set_vlan_pvid(uint8_t port_id, uint16_t pvid, int on);
2362 * Retrieve a burst of input packets from a receive queue of an Ethernet
2363 * device. The retrieved packets are stored in *rte_mbuf* structures whose
2364 * pointers are supplied in the *rx_pkts* array.
2366 * The rte_eth_rx_burst() function loops, parsing the RX ring of the
2367 * receive queue, up to *nb_pkts* packets, and for each completed RX
2368 * descriptor in the ring, it performs the following operations:
2370 * - Initialize the *rte_mbuf* data structure associated with the
2371 * RX descriptor according to the information provided by the NIC into
2372 * that RX descriptor.
2374 * - Store the *rte_mbuf* data structure into the next entry of the
2377 * - Replenish the RX descriptor with a new *rte_mbuf* buffer
2378 * allocated from the memory pool associated with the receive queue at
2379 * initialization time.
2381 * When retrieving an input packet that was scattered by the controller
2382 * into multiple receive descriptors, the rte_eth_rx_burst() function
2383 * appends the associated *rte_mbuf* buffers to the first buffer of the
2386 * The rte_eth_rx_burst() function returns the number of packets
2387 * actually retrieved, which is the number of *rte_mbuf* data structures
2388 * effectively supplied into the *rx_pkts* array.
2389 * A return value equal to *nb_pkts* indicates that the RX queue contained
2390 * at least *rx_pkts* packets, and this is likely to signify that other
2391 * received packets remain in the input queue. Applications implementing
2392 * a "retrieve as much received packets as possible" policy can check this
2393 * specific case and keep invoking the rte_eth_rx_burst() function until
2394 * a value less than *nb_pkts* is returned.
2396 * This receive method has the following advantages:
2398 * - It allows a run-to-completion network stack engine to retrieve and
2399 * to immediately process received packets in a fast burst-oriented
2400 * approach, avoiding the overhead of unnecessary intermediate packet
2401 * queue/dequeue operations.
2403 * - Conversely, it also allows an asynchronous-oriented processing
2404 * method to retrieve bursts of received packets and to immediately
2405 * queue them for further parallel processing by another logical core,
2406 * for instance. However, instead of having received packets being
2407 * individually queued by the driver, this approach allows the invoker
2408 * of the rte_eth_rx_burst() function to queue a burst of retrieved
2409 * packets at a time and therefore dramatically reduce the cost of
2410 * enqueue/dequeue operations per packet.
2412 * - It allows the rte_eth_rx_burst() function of the driver to take
2413 * advantage of burst-oriented hardware features (CPU cache,
2414 * prefetch instructions, and so on) to minimize the number of CPU
2415 * cycles per packet.
2417 * To summarize, the proposed receive API enables many
2418 * burst-oriented optimizations in both synchronous and asynchronous
2419 * packet processing environments with no overhead in both cases.
2421 * The rte_eth_rx_burst() function does not provide any error
2422 * notification to avoid the corresponding overhead. As a hint, the
2423 * upper-level application might check the status of the device link once
2424 * being systematically returned a 0 value for a given number of tries.
2427 * The port identifier of the Ethernet device.
2429 * The index of the receive queue from which to retrieve input packets.
2430 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
2431 * to rte_eth_dev_configure().
2433 * The address of an array of pointers to *rte_mbuf* structures that
2434 * must be large enough to store *nb_pkts* pointers in it.
2436 * The maximum number of packets to retrieve.
2438 * The number of packets actually retrieved, which is the number
2439 * of pointers to *rte_mbuf* structures effectively supplied to the
2442 #ifdef RTE_LIBRTE_ETHDEV_DEBUG
2443 extern uint16_t rte_eth_rx_burst(uint8_t port_id, uint16_t queue_id,
2444 struct rte_mbuf **rx_pkts, uint16_t nb_pkts);
2446 static inline uint16_t
2447 rte_eth_rx_burst(uint8_t port_id, uint16_t queue_id,
2448 struct rte_mbuf **rx_pkts, const uint16_t nb_pkts)
2450 struct rte_eth_dev *dev;
2452 dev = &rte_eth_devices[port_id];
2454 int16_t nb_rx = (*dev->rx_pkt_burst)(dev->data->rx_queues[queue_id],
2457 #ifdef RTE_ETHDEV_RXTX_CALLBACKS
2458 struct rte_eth_rxtx_callback *cb = dev->post_rx_burst_cbs[queue_id];
2460 if (unlikely(cb != NULL)) {
2462 nb_rx = cb->fn.rx(port_id, queue_id, rx_pkts, nb_rx,
2463 nb_pkts, cb->param);
2465 } while (cb != NULL);
2474 * Get the number of used descriptors in a specific queue
2477 * The port identifier of the Ethernet device.
2479 * The queue id on the specific port.
2481 * The number of used descriptors in the specific queue.
2483 #ifdef RTE_LIBRTE_ETHDEV_DEBUG
2484 extern uint32_t rte_eth_rx_queue_count(uint8_t port_id, uint16_t queue_id);
2486 static inline uint32_t
2487 rte_eth_rx_queue_count(uint8_t port_id, uint16_t queue_id)
2489 struct rte_eth_dev *dev;
2491 dev = &rte_eth_devices[port_id];
2492 return (*dev->dev_ops->rx_queue_count)(dev, queue_id);
2497 * Check if the DD bit of the specific RX descriptor in the queue has been set
2500 * The port identifier of the Ethernet device.
2502 * The queue id on the specific port.
2504 * The offset of the descriptor ID from tail.
2506 * - (1) if the specific DD bit is set.
2507 * - (0) if the specific DD bit is not set.
2508 * - (-ENODEV) if *port_id* invalid.
2510 #ifdef RTE_LIBRTE_ETHDEV_DEBUG
2511 extern int rte_eth_rx_descriptor_done(uint8_t port_id,
2516 rte_eth_rx_descriptor_done(uint8_t port_id, uint16_t queue_id, uint16_t offset)
2518 struct rte_eth_dev *dev;
2520 dev = &rte_eth_devices[port_id];
2521 return (*dev->dev_ops->rx_descriptor_done)( \
2522 dev->data->rx_queues[queue_id], offset);
2527 * Send a burst of output packets on a transmit queue of an Ethernet device.
2529 * The rte_eth_tx_burst() function is invoked to transmit output packets
2530 * on the output queue *queue_id* of the Ethernet device designated by its
2532 * The *nb_pkts* parameter is the number of packets to send which are
2533 * supplied in the *tx_pkts* array of *rte_mbuf* structures.
2534 * The rte_eth_tx_burst() function loops, sending *nb_pkts* packets,
2535 * up to the number of transmit descriptors available in the TX ring of the
2537 * For each packet to send, the rte_eth_tx_burst() function performs
2538 * the following operations:
2540 * - Pick up the next available descriptor in the transmit ring.
2542 * - Free the network buffer previously sent with that descriptor, if any.
2544 * - Initialize the transmit descriptor with the information provided
2545 * in the *rte_mbuf data structure.
2547 * In the case of a segmented packet composed of a list of *rte_mbuf* buffers,
2548 * the rte_eth_tx_burst() function uses several transmit descriptors
2551 * The rte_eth_tx_burst() function returns the number of packets it
2552 * actually sent. A return value equal to *nb_pkts* means that all packets
2553 * have been sent, and this is likely to signify that other output packets
2554 * could be immediately transmitted again. Applications that implement a
2555 * "send as many packets to transmit as possible" policy can check this
2556 * specific case and keep invoking the rte_eth_tx_burst() function until
2557 * a value less than *nb_pkts* is returned.
2559 * It is the responsibility of the rte_eth_tx_burst() function to
2560 * transparently free the memory buffers of packets previously sent.
2561 * This feature is driven by the *tx_free_thresh* value supplied to the
2562 * rte_eth_dev_configure() function at device configuration time.
2563 * When the number of free TX descriptors drops below this threshold, the
2564 * rte_eth_tx_burst() function must [attempt to] free the *rte_mbuf* buffers
2565 * of those packets whose transmission was effectively completed.
2568 * The port identifier of the Ethernet device.
2570 * The index of the transmit queue through which output packets must be
2572 * The value must be in the range [0, nb_tx_queue - 1] previously supplied
2573 * to rte_eth_dev_configure().
2575 * The address of an array of *nb_pkts* pointers to *rte_mbuf* structures
2576 * which contain the output packets.
2578 * The maximum number of packets to transmit.
2580 * The number of output packets actually stored in transmit descriptors of
2581 * the transmit ring. The return value can be less than the value of the
2582 * *tx_pkts* parameter when the transmit ring is full or has been filled up.
2584 #ifdef RTE_LIBRTE_ETHDEV_DEBUG
2585 extern uint16_t rte_eth_tx_burst(uint8_t port_id, uint16_t queue_id,
2586 struct rte_mbuf **tx_pkts, uint16_t nb_pkts);
2588 static inline uint16_t
2589 rte_eth_tx_burst(uint8_t port_id, uint16_t queue_id,
2590 struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
2592 struct rte_eth_dev *dev;
2594 dev = &rte_eth_devices[port_id];
2596 #ifdef RTE_ETHDEV_RXTX_CALLBACKS
2597 struct rte_eth_rxtx_callback *cb = dev->pre_tx_burst_cbs[queue_id];
2599 if (unlikely(cb != NULL)) {
2601 nb_pkts = cb->fn.tx(port_id, queue_id, tx_pkts, nb_pkts,
2604 } while (cb != NULL);
2608 return (*dev->tx_pkt_burst)(dev->data->tx_queues[queue_id], tx_pkts, nb_pkts);
2613 * The eth device event type for interrupt, and maybe others in the future.
2615 enum rte_eth_event_type {
2616 RTE_ETH_EVENT_UNKNOWN, /**< unknown event type */
2617 RTE_ETH_EVENT_INTR_LSC, /**< lsc interrupt event */
2618 RTE_ETH_EVENT_MAX /**< max value of this enum */
2621 typedef void (*rte_eth_dev_cb_fn)(uint8_t port_id, \
2622 enum rte_eth_event_type event, void *cb_arg);
2623 /**< user application callback to be registered for interrupts */
2628 * Register a callback function for specific port id.
2635 * User supplied callback function to be called.
2637 * Pointer to the parameters for the registered callback.
2640 * - On success, zero.
2641 * - On failure, a negative value.
2643 int rte_eth_dev_callback_register(uint8_t port_id,
2644 enum rte_eth_event_type event,
2645 rte_eth_dev_cb_fn cb_fn, void *cb_arg);
2648 * Unregister a callback function for specific port id.
2655 * User supplied callback function to be called.
2657 * Pointer to the parameters for the registered callback. -1 means to
2658 * remove all for the same callback address and same event.
2661 * - On success, zero.
2662 * - On failure, a negative value.
2664 int rte_eth_dev_callback_unregister(uint8_t port_id,
2665 enum rte_eth_event_type event,
2666 rte_eth_dev_cb_fn cb_fn, void *cb_arg);
2669 * @internal Executes all the user application registered callbacks for
2670 * the specific device. It is for DPDK internal user only. User
2671 * application should not call it directly.
2674 * Pointer to struct rte_eth_dev.
2676 * Eth device interrupt event type.
2681 void _rte_eth_dev_callback_process(struct rte_eth_dev *dev,
2682 enum rte_eth_event_type event);
2685 * When there is no rx packet coming in Rx Queue for a long time, we can
2686 * sleep lcore related to RX Queue for power saving, and enable rx interrupt
2687 * to be triggered when rx packect arrives.
2689 * The rte_eth_dev_rx_intr_enable() function enables rx queue
2690 * interrupt on specific rx queue of a port.
2693 * The port identifier of the Ethernet device.
2695 * The index of the receive queue from which to retrieve input packets.
2696 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
2697 * to rte_eth_dev_configure().
2699 * - (0) if successful.
2700 * - (-ENOTSUP) if underlying hardware OR driver doesn't support
2702 * - (-ENODEV) if *port_id* invalid.
2704 int rte_eth_dev_rx_intr_enable(uint8_t port_id, uint16_t queue_id);
2707 * When lcore wakes up from rx interrupt indicating packet coming, disable rx
2708 * interrupt and returns to polling mode.
2710 * The rte_eth_dev_rx_intr_disable() function disables rx queue
2711 * interrupt on specific rx queue of a port.
2714 * The port identifier of the Ethernet device.
2716 * The index of the receive queue from which to retrieve input packets.
2717 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
2718 * to rte_eth_dev_configure().
2720 * - (0) if successful.
2721 * - (-ENOTSUP) if underlying hardware OR driver doesn't support
2723 * - (-ENODEV) if *port_id* invalid.
2725 int rte_eth_dev_rx_intr_disable(uint8_t port_id, uint16_t queue_id);
2728 * RX Interrupt control per port.
2731 * The port identifier of the Ethernet device.
2733 * Epoll instance fd which the intr vector associated to.
2734 * Using RTE_EPOLL_PER_THREAD allows to use per thread epoll instance.
2736 * The operation be performed for the vector.
2737 * Operation type of {RTE_INTR_EVENT_ADD, RTE_INTR_EVENT_DEL}.
2741 * - On success, zero.
2742 * - On failure, a negative value.
2744 int rte_eth_dev_rx_intr_ctl(uint8_t port_id, int epfd, int op, void *data);
2747 * RX Interrupt control per queue.
2750 * The port identifier of the Ethernet device.
2752 * The index of the receive queue from which to retrieve input packets.
2753 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
2754 * to rte_eth_dev_configure().
2756 * Epoll instance fd which the intr vector associated to.
2757 * Using RTE_EPOLL_PER_THREAD allows to use per thread epoll instance.
2759 * The operation be performed for the vector.
2760 * Operation type of {RTE_INTR_EVENT_ADD, RTE_INTR_EVENT_DEL}.
2764 * - On success, zero.
2765 * - On failure, a negative value.
2767 int rte_eth_dev_rx_intr_ctl_q(uint8_t port_id, uint16_t queue_id,
2768 int epfd, int op, void *data);
2771 * Turn on the LED on the Ethernet device.
2772 * This function turns on the LED on the Ethernet device.
2775 * The port identifier of the Ethernet device.
2777 * - (0) if successful.
2778 * - (-ENOTSUP) if underlying hardware OR driver doesn't support
2780 * - (-ENODEV) if *port_id* invalid.
2782 int rte_eth_led_on(uint8_t port_id);
2785 * Turn off the LED on the Ethernet device.
2786 * This function turns off the LED on the Ethernet device.
2789 * The port identifier of the Ethernet device.
2791 * - (0) if successful.
2792 * - (-ENOTSUP) if underlying hardware OR driver doesn't support
2794 * - (-ENODEV) if *port_id* invalid.
2796 int rte_eth_led_off(uint8_t port_id);
2799 * Get current status of the Ethernet link flow control for Ethernet device
2802 * The port identifier of the Ethernet device.
2804 * The pointer to the structure where to store the flow control parameters.
2806 * - (0) if successful.
2807 * - (-ENOTSUP) if hardware doesn't support flow control.
2808 * - (-ENODEV) if *port_id* invalid.
2810 int rte_eth_dev_flow_ctrl_get(uint8_t port_id,
2811 struct rte_eth_fc_conf *fc_conf);
2814 * Configure the Ethernet link flow control for Ethernet device
2817 * The port identifier of the Ethernet device.
2819 * The pointer to the structure of the flow control parameters.
2821 * - (0) if successful.
2822 * - (-ENOTSUP) if hardware doesn't support flow control mode.
2823 * - (-ENODEV) if *port_id* invalid.
2824 * - (-EINVAL) if bad parameter
2825 * - (-EIO) if flow control setup failure
2827 int rte_eth_dev_flow_ctrl_set(uint8_t port_id,
2828 struct rte_eth_fc_conf *fc_conf);
2831 * Configure the Ethernet priority flow control under DCB environment
2832 * for Ethernet device.
2835 * The port identifier of the Ethernet device.
2837 * The pointer to the structure of the priority flow control parameters.
2839 * - (0) if successful.
2840 * - (-ENOTSUP) if hardware doesn't support priority flow control mode.
2841 * - (-ENODEV) if *port_id* invalid.
2842 * - (-EINVAL) if bad parameter
2843 * - (-EIO) if flow control setup failure
2845 int rte_eth_dev_priority_flow_ctrl_set(uint8_t port_id,
2846 struct rte_eth_pfc_conf *pfc_conf);
2849 * Add a MAC address to an internal array of addresses used to enable whitelist
2850 * filtering to accept packets only if the destination MAC address matches.
2853 * The port identifier of the Ethernet device.
2855 * The MAC address to add.
2857 * VMDq pool index to associate address with (if VMDq is enabled). If VMDq is
2858 * not enabled, this should be set to 0.
2860 * - (0) if successfully added or *mac_addr" was already added.
2861 * - (-ENOTSUP) if hardware doesn't support this feature.
2862 * - (-ENODEV) if *port* is invalid.
2863 * - (-ENOSPC) if no more MAC addresses can be added.
2864 * - (-EINVAL) if MAC address is invalid.
2866 int rte_eth_dev_mac_addr_add(uint8_t port, struct ether_addr *mac_addr,
2870 * Remove a MAC address from the internal array of addresses.
2873 * The port identifier of the Ethernet device.
2875 * MAC address to remove.
2877 * - (0) if successful, or *mac_addr* didn't exist.
2878 * - (-ENOTSUP) if hardware doesn't support.
2879 * - (-ENODEV) if *port* invalid.
2880 * - (-EADDRINUSE) if attempting to remove the default MAC address
2882 int rte_eth_dev_mac_addr_remove(uint8_t port, struct ether_addr *mac_addr);
2885 * Set the default MAC address.
2888 * The port identifier of the Ethernet device.
2890 * New default MAC address.
2892 * - (0) if successful, or *mac_addr* didn't exist.
2893 * - (-ENOTSUP) if hardware doesn't support.
2894 * - (-ENODEV) if *port* invalid.
2895 * - (-EINVAL) if MAC address is invalid.
2897 int rte_eth_dev_default_mac_addr_set(uint8_t port, struct ether_addr *mac_addr);
2901 * Update Redirection Table(RETA) of Receive Side Scaling of Ethernet device.
2904 * The port identifier of the Ethernet device.
2908 * Redirection table size. The table size can be queried by
2909 * rte_eth_dev_info_get().
2911 * - (0) if successful.
2912 * - (-ENOTSUP) if hardware doesn't support.
2913 * - (-EINVAL) if bad parameter.
2915 int rte_eth_dev_rss_reta_update(uint8_t port,
2916 struct rte_eth_rss_reta_entry64 *reta_conf,
2917 uint16_t reta_size);
2920 * Query Redirection Table(RETA) of Receive Side Scaling of Ethernet device.
2923 * The port identifier of the Ethernet device.
2927 * Redirection table size. The table size can be queried by
2928 * rte_eth_dev_info_get().
2930 * - (0) if successful.
2931 * - (-ENOTSUP) if hardware doesn't support.
2932 * - (-EINVAL) if bad parameter.
2934 int rte_eth_dev_rss_reta_query(uint8_t port,
2935 struct rte_eth_rss_reta_entry64 *reta_conf,
2936 uint16_t reta_size);
2939 * Updates unicast hash table for receiving packet with the given destination
2940 * MAC address, and the packet is routed to all VFs for which the RX mode is
2941 * accept packets that match the unicast hash table.
2944 * The port identifier of the Ethernet device.
2946 * Unicast MAC address.
2948 * 1 - Set an unicast hash bit for receiving packets with the MAC address.
2949 * 0 - Clear an unicast hash bit.
2951 * - (0) if successful.
2952 * - (-ENOTSUP) if hardware doesn't support.
2953 * - (-ENODEV) if *port_id* invalid.
2954 * - (-EINVAL) if bad parameter.
2956 int rte_eth_dev_uc_hash_table_set(uint8_t port,struct ether_addr *addr,
2960 * Updates all unicast hash bitmaps for receiving packet with any Unicast
2961 * Ethernet MAC addresses,the packet is routed to all VFs for which the RX
2962 * mode is accept packets that match the unicast hash table.
2965 * The port identifier of the Ethernet device.
2967 * 1 - Set all unicast hash bitmaps for receiving all the Ethernet
2969 * 0 - Clear all unicast hash bitmaps
2971 * - (0) if successful.
2972 * - (-ENOTSUP) if hardware doesn't support.
2973 * - (-ENODEV) if *port_id* invalid.
2974 * - (-EINVAL) if bad parameter.
2976 int rte_eth_dev_uc_all_hash_table_set(uint8_t port,uint8_t on);
2979 * Set RX L2 Filtering mode of a VF of an Ethernet device.
2982 * The port identifier of the Ethernet device.
2986 * The RX mode mask, which is one or more of accepting Untagged Packets,
2987 * packets that match the PFUTA table, Broadcast and Multicast Promiscuous.
2988 * ETH_VMDQ_ACCEPT_UNTAG,ETH_VMDQ_ACCEPT_HASH_UC,
2989 * ETH_VMDQ_ACCEPT_BROADCAST and ETH_VMDQ_ACCEPT_MULTICAST will be used
2992 * 1 - Enable a VF RX mode.
2993 * 0 - Disable a VF RX mode.
2995 * - (0) if successful.
2996 * - (-ENOTSUP) if hardware doesn't support.
2997 * - (-ENOTSUP) if hardware doesn't support.
2998 * - (-EINVAL) if bad parameter.
3000 int rte_eth_dev_set_vf_rxmode(uint8_t port, uint16_t vf, uint16_t rx_mode,
3004 * Enable or disable a VF traffic transmit of the Ethernet device.
3007 * The port identifier of the Ethernet device.
3011 * 1 - Enable a VF traffic transmit.
3012 * 0 - Disable a VF traffic transmit.
3014 * - (0) if successful.
3015 * - (-ENODEV) if *port_id* invalid.
3016 * - (-ENOTSUP) if hardware doesn't support.
3017 * - (-EINVAL) if bad parameter.
3020 rte_eth_dev_set_vf_tx(uint8_t port,uint16_t vf, uint8_t on);
3023 * Enable or disable a VF traffic receive of an Ethernet device.
3026 * The port identifier of the Ethernet device.
3030 * 1 - Enable a VF traffic receive.
3031 * 0 - Disable a VF traffic receive.
3033 * - (0) if successful.
3034 * - (-ENOTSUP) if hardware doesn't support.
3035 * - (-ENODEV) if *port_id* invalid.
3036 * - (-EINVAL) if bad parameter.
3039 rte_eth_dev_set_vf_rx(uint8_t port,uint16_t vf, uint8_t on);
3042 * Enable/Disable hardware VF VLAN filtering by an Ethernet device of
3043 * received VLAN packets tagged with a given VLAN Tag Identifier.
3046 * The port identifier of the Ethernet device.
3048 * The VLAN Tag Identifier whose filtering must be enabled or disabled.
3050 * Bitmap listing which VFs participate in the VLAN filtering.
3052 * 1 - Enable VFs VLAN filtering.
3053 * 0 - Disable VFs VLAN filtering.
3055 * - (0) if successful.
3056 * - (-ENOTSUP) if hardware doesn't support.
3057 * - (-ENODEV) if *port_id* invalid.
3058 * - (-EINVAL) if bad parameter.
3061 rte_eth_dev_set_vf_vlan_filter(uint8_t port, uint16_t vlan_id,
3066 * Set a traffic mirroring rule on an Ethernet device
3069 * The port identifier of the Ethernet device.
3070 * @param mirror_conf
3071 * The pointer to the traffic mirroring structure describing the mirroring rule.
3072 * The *rte_eth_vm_mirror_conf* structure includes the type of mirroring rule,
3073 * destination pool and the value of rule if enable vlan or pool mirroring.
3076 * The index of traffic mirroring rule, we support four separated rules.
3078 * 1 - Enable a mirroring rule.
3079 * 0 - Disable a mirroring rule.
3081 * - (0) if successful.
3082 * - (-ENOTSUP) if hardware doesn't support this feature.
3083 * - (-ENODEV) if *port_id* invalid.
3084 * - (-EINVAL) if the mr_conf information is not correct.
3086 int rte_eth_mirror_rule_set(uint8_t port_id,
3087 struct rte_eth_mirror_conf *mirror_conf,
3092 * Reset a traffic mirroring rule on an Ethernet device.
3095 * The port identifier of the Ethernet device.
3097 * The index of traffic mirroring rule, we support four separated rules.
3099 * - (0) if successful.
3100 * - (-ENOTSUP) if hardware doesn't support this feature.
3101 * - (-ENODEV) if *port_id* invalid.
3102 * - (-EINVAL) if bad parameter.
3104 int rte_eth_mirror_rule_reset(uint8_t port_id,
3108 * Set the rate limitation for a queue on an Ethernet device.
3111 * The port identifier of the Ethernet device.
3115 * The tx rate allocated from the total link speed for this queue.
3117 * - (0) if successful.
3118 * - (-ENOTSUP) if hardware doesn't support this feature.
3119 * - (-ENODEV) if *port_id* invalid.
3120 * - (-EINVAL) if bad parameter.
3122 int rte_eth_set_queue_rate_limit(uint8_t port_id, uint16_t queue_idx,
3126 * Set the rate limitation for a vf on an Ethernet device.
3129 * The port identifier of the Ethernet device.
3133 * The tx rate allocated from the total link speed for this VF id.
3135 * The queue mask which need to set the rate.
3137 * - (0) if successful.
3138 * - (-ENOTSUP) if hardware doesn't support this feature.
3139 * - (-ENODEV) if *port_id* invalid.
3140 * - (-EINVAL) if bad parameter.
3142 int rte_eth_set_vf_rate_limit(uint8_t port_id, uint16_t vf,
3143 uint16_t tx_rate, uint64_t q_msk);
3146 * Initialize bypass logic. This function needs to be called before
3147 * executing any other bypass API.
3150 * The port identifier of the Ethernet device.
3152 * - (0) if successful.
3153 * - (-ENOTSUP) if hardware doesn't support.
3154 * - (-EINVAL) if bad parameter.
3156 int rte_eth_dev_bypass_init(uint8_t port);
3159 * Return bypass state.
3162 * The port identifier of the Ethernet device.
3164 * The return bypass state.
3167 * - (3) Isolate mode
3169 * - (0) if successful.
3170 * - (-ENOTSUP) if hardware doesn't support.
3171 * - (-EINVAL) if bad parameter.
3173 int rte_eth_dev_bypass_state_show(uint8_t port, uint32_t *state);
3179 * The port identifier of the Ethernet device.
3181 * The current bypass state.
3184 * - (3) Isolate mode
3186 * - (0) if successful.
3187 * - (-ENOTSUP) if hardware doesn't support.
3188 * - (-EINVAL) if bad parameter.
3190 int rte_eth_dev_bypass_state_set(uint8_t port, uint32_t *new_state);
3193 * Return bypass state when given event occurs.
3196 * The port identifier of the Ethernet device.
3199 * - (1) Main power on (power button is pushed)
3200 * - (2) Auxiliary power on (power supply is being plugged)
3201 * - (3) Main power off (system shutdown and power supply is left plugged in)
3202 * - (4) Auxiliary power off (power supply is being unplugged)
3203 * - (5) Display or set the watchdog timer
3205 * The bypass state when given event occurred.
3208 * - (3) Isolate mode
3210 * - (0) if successful.
3211 * - (-ENOTSUP) if hardware doesn't support.
3212 * - (-EINVAL) if bad parameter.
3214 int rte_eth_dev_bypass_event_show(uint8_t port, uint32_t event, uint32_t *state);
3217 * Set bypass state when given event occurs.
3220 * The port identifier of the Ethernet device.
3223 * - (1) Main power on (power button is pushed)
3224 * - (2) Auxiliary power on (power supply is being plugged)
3225 * - (3) Main power off (system shutdown and power supply is left plugged in)
3226 * - (4) Auxiliary power off (power supply is being unplugged)
3227 * - (5) Display or set the watchdog timer
3229 * The assigned state when given event occurs.
3232 * - (3) Isolate mode
3234 * - (0) if successful.
3235 * - (-ENOTSUP) if hardware doesn't support.
3236 * - (-EINVAL) if bad parameter.
3238 int rte_eth_dev_bypass_event_store(uint8_t port, uint32_t event, uint32_t state);
3241 * Set bypass watchdog timeout count.
3244 * The port identifier of the Ethernet device.
3246 * The timeout to be set.
3247 * - (0) 0 seconds (timer is off)
3256 * - (0) if successful.
3257 * - (-ENOTSUP) if hardware doesn't support.
3258 * - (-EINVAL) if bad parameter.
3260 int rte_eth_dev_wd_timeout_store(uint8_t port, uint32_t timeout);
3263 * Get bypass firmware version.
3266 * The port identifier of the Ethernet device.
3268 * The firmware version
3270 * - (0) if successful.
3271 * - (-ENOTSUP) if hardware doesn't support.
3272 * - (-EINVAL) if bad parameter.
3274 int rte_eth_dev_bypass_ver_show(uint8_t port, uint32_t *ver);
3277 * Return bypass watchdog timeout in seconds
3280 * The port identifier of the Ethernet device.
3282 * The return watchdog timeout. "0" represents timer expired
3283 * - (0) 0 seconds (timer is off)
3292 * - (0) if successful.
3293 * - (-ENOTSUP) if hardware doesn't support.
3294 * - (-EINVAL) if bad parameter.
3296 int rte_eth_dev_bypass_wd_timeout_show(uint8_t port, uint32_t *wd_timeout);
3299 * Reset bypass watchdog timer
3302 * The port identifier of the Ethernet device.
3304 * - (0) if successful.
3305 * - (-ENOTSUP) if hardware doesn't support.
3306 * - (-EINVAL) if bad parameter.
3308 int rte_eth_dev_bypass_wd_reset(uint8_t port);
3311 * Configuration of Receive Side Scaling hash computation of Ethernet device.
3314 * The port identifier of the Ethernet device.
3316 * The new configuration to use for RSS hash computation on the port.
3318 * - (0) if successful.
3319 * - (-ENODEV) if port identifier is invalid.
3320 * - (-ENOTSUP) if hardware doesn't support.
3321 * - (-EINVAL) if bad parameter.
3323 int rte_eth_dev_rss_hash_update(uint8_t port_id,
3324 struct rte_eth_rss_conf *rss_conf);
3327 * Retrieve current configuration of Receive Side Scaling hash computation
3328 * of Ethernet device.
3331 * The port identifier of the Ethernet device.
3333 * Where to store the current RSS hash configuration of the Ethernet device.
3335 * - (0) if successful.
3336 * - (-ENODEV) if port identifier is invalid.
3337 * - (-ENOTSUP) if hardware doesn't support RSS.
3340 rte_eth_dev_rss_hash_conf_get(uint8_t port_id,
3341 struct rte_eth_rss_conf *rss_conf);
3344 * Add UDP tunneling port of an Ethernet device for filtering a specific
3345 * tunneling packet by UDP port number.
3348 * The port identifier of the Ethernet device.
3350 * UDP tunneling configuration.
3353 * - (0) if successful.
3354 * - (-ENODEV) if port identifier is invalid.
3355 * - (-ENOTSUP) if hardware doesn't support tunnel type.
3358 rte_eth_dev_udp_tunnel_add(uint8_t port_id,
3359 struct rte_eth_udp_tunnel *tunnel_udp);
3362 * Detete UDP tunneling port configuration of Ethernet device
3365 * The port identifier of the Ethernet device.
3367 * UDP tunneling configuration.
3370 * - (0) if successful.
3371 * - (-ENODEV) if port identifier is invalid.
3372 * - (-ENOTSUP) if hardware doesn't support tunnel type.
3375 rte_eth_dev_udp_tunnel_delete(uint8_t port_id,
3376 struct rte_eth_udp_tunnel *tunnel_udp);
3379 * Check whether the filter type is supported on an Ethernet device.
3380 * All the supported filter types are defined in 'rte_eth_ctrl.h'.
3383 * The port identifier of the Ethernet device.
3384 * @param filter_type
3387 * - (0) if successful.
3388 * - (-ENOTSUP) if hardware doesn't support this filter type.
3389 * - (-ENODEV) if *port_id* invalid.
3391 int rte_eth_dev_filter_supported(uint8_t port_id, enum rte_filter_type filter_type);
3394 * Take operations to assigned filter type on an Ethernet device.
3395 * All the supported operations and filter types are defined in 'rte_eth_ctrl.h'.
3398 * The port identifier of the Ethernet device.
3399 * @param filter_type
3402 * Type of operation.
3404 * A pointer to arguments defined specifically for the operation.
3406 * - (0) if successful.
3407 * - (-ENOTSUP) if hardware doesn't support.
3408 * - (-ENODEV) if *port_id* invalid.
3409 * - others depends on the specific operations implementation.
3411 int rte_eth_dev_filter_ctrl(uint8_t port_id, enum rte_filter_type filter_type,
3412 enum rte_filter_op filter_op, void *arg);
3415 * Get DCB information on an Ethernet device.
3418 * The port identifier of the Ethernet device.
3422 * - (0) if successful.
3423 * - (-ENODEV) if port identifier is invalid.
3424 * - (-ENOTSUP) if hardware doesn't support.
3426 int rte_eth_dev_get_dcb_info(uint8_t port_id,
3427 struct rte_eth_dcb_info *dcb_info);
3430 * Add a callback to be called on packet RX on a given port and queue.
3432 * This API configures a function to be called for each burst of
3433 * packets received on a given NIC port queue. The return value is a pointer
3434 * that can be used to later remove the callback using
3435 * rte_eth_remove_rx_callback().
3437 * Multiple functions are called in the order that they are added.
3440 * The port identifier of the Ethernet device.
3442 * The queue on the Ethernet device on which the callback is to be added.
3444 * The callback function
3446 * A generic pointer parameter which will be passed to each invocation of the
3447 * callback function on this port and queue.
3451 * On success, a pointer value which can later be used to remove the callback.
3453 void *rte_eth_add_rx_callback(uint8_t port_id, uint16_t queue_id,
3454 rte_rx_callback_fn fn, void *user_param);
3457 * Add a callback to be called on packet TX on a given port and queue.
3459 * This API configures a function to be called for each burst of
3460 * packets sent on a given NIC port queue. The return value is a pointer
3461 * that can be used to later remove the callback using
3462 * rte_eth_remove_tx_callback().
3464 * Multiple functions are called in the order that they are added.
3467 * The port identifier of the Ethernet device.
3469 * The queue on the Ethernet device on which the callback is to be added.
3471 * The callback function
3473 * A generic pointer parameter which will be passed to each invocation of the
3474 * callback function on this port and queue.
3478 * On success, a pointer value which can later be used to remove the callback.
3480 void *rte_eth_add_tx_callback(uint8_t port_id, uint16_t queue_id,
3481 rte_tx_callback_fn fn, void *user_param);
3484 * Remove an RX packet callback from a given port and queue.
3486 * This function is used to removed callbacks that were added to a NIC port
3487 * queue using rte_eth_add_rx_callback().
3489 * Note: the callback is removed from the callback list but it isn't freed
3490 * since the it may still be in use. The memory for the callback can be
3491 * subsequently freed back by the application by calling rte_free():
3493 * - Immediately - if the port is stopped, or the user knows that no
3494 * callbacks are in flight e.g. if called from the thread doing RX/TX
3497 * - After a short delay - where the delay is sufficient to allow any
3498 * in-flight callbacks to complete.
3501 * The port identifier of the Ethernet device.
3503 * The queue on the Ethernet device from which the callback is to be removed.
3505 * User supplied callback created via rte_eth_add_rx_callback().
3508 * - 0: Success. Callback was removed.
3509 * - -ENOTSUP: Callback support is not available.
3510 * - -EINVAL: The port_id or the queue_id is out of range, or the callback
3511 * is NULL or not found for the port/queue.
3513 int rte_eth_remove_rx_callback(uint8_t port_id, uint16_t queue_id,
3514 struct rte_eth_rxtx_callback *user_cb);
3517 * Remove a TX packet callback from a given port and queue.
3519 * This function is used to removed callbacks that were added to a NIC port
3520 * queue using rte_eth_add_tx_callback().
3522 * Note: the callback is removed from the callback list but it isn't freed
3523 * since the it may still be in use. The memory for the callback can be
3524 * subsequently freed back by the application by calling rte_free():
3526 * - Immediately - if the port is stopped, or the user knows that no
3527 * callbacks are in flight e.g. if called from the thread doing RX/TX
3530 * - After a short delay - where the delay is sufficient to allow any
3531 * in-flight callbacks to complete.
3534 * The port identifier of the Ethernet device.
3536 * The queue on the Ethernet device from which the callback is to be removed.
3538 * User supplied callback created via rte_eth_add_tx_callback().
3541 * - 0: Success. Callback was removed.
3542 * - -ENOTSUP: Callback support is not available.
3543 * - -EINVAL: The port_id or the queue_id is out of range, or the callback
3544 * is NULL or not found for the port/queue.
3546 int rte_eth_remove_tx_callback(uint8_t port_id, uint16_t queue_id,
3547 struct rte_eth_rxtx_callback *user_cb);
3550 * Retrieve information about given port's RX queue.
3553 * The port identifier of the Ethernet device.
3555 * The RX queue on the Ethernet device for which information
3556 * will be retrieved.
3558 * A pointer to a structure of type *rte_eth_rxq_info_info* to be filled with
3559 * the information of the Ethernet device.
3563 * - -ENOTSUP: routine is not supported by the device PMD.
3564 * - -EINVAL: The port_id or the queue_id is out of range.
3566 int rte_eth_rx_queue_info_get(uint8_t port_id, uint16_t queue_id,
3567 struct rte_eth_rxq_info *qinfo);
3570 * Retrieve information about given port's TX queue.
3573 * The port identifier of the Ethernet device.
3575 * The TX queue on the Ethernet device for which information
3576 * will be retrieved.
3578 * A pointer to a structure of type *rte_eth_txq_info_info* to be filled with
3579 * the information of the Ethernet device.
3583 * - -ENOTSUP: routine is not supported by the device PMD.
3584 * - -EINVAL: The port_id or the queue_id is out of range.
3586 int rte_eth_tx_queue_info_get(uint8_t port_id, uint16_t queue_id,
3587 struct rte_eth_txq_info *qinfo);
3590 * Retrieve number of available registers for access
3593 * The port identifier of the Ethernet device.
3595 * - (>=0) number of registers if successful.
3596 * - (-ENOTSUP) if hardware doesn't support.
3597 * - (-ENODEV) if *port_id* invalid.
3598 * - others depends on the specific operations implementation.
3600 int rte_eth_dev_get_reg_length(uint8_t port_id);
3603 * Retrieve device registers and register attributes
3606 * The port identifier of the Ethernet device.
3608 * The template includes buffer for register data and attribute to be filled.
3610 * - (0) if successful.
3611 * - (-ENOTSUP) if hardware doesn't support.
3612 * - (-ENODEV) if *port_id* invalid.
3613 * - others depends on the specific operations implementation.
3615 int rte_eth_dev_get_reg_info(uint8_t port_id, struct rte_dev_reg_info *info);
3618 * Retrieve size of device EEPROM
3621 * The port identifier of the Ethernet device.
3623 * - (>=0) EEPROM size if successful.
3624 * - (-ENOTSUP) if hardware doesn't support.
3625 * - (-ENODEV) if *port_id* invalid.
3626 * - others depends on the specific operations implementation.
3628 int rte_eth_dev_get_eeprom_length(uint8_t port_id);
3631 * Retrieve EEPROM and EEPROM attribute
3634 * The port identifier of the Ethernet device.
3636 * The template includes buffer for return EEPROM data and
3637 * EEPROM attributes to be filled.
3639 * - (0) if successful.
3640 * - (-ENOTSUP) if hardware doesn't support.
3641 * - (-ENODEV) if *port_id* invalid.
3642 * - others depends on the specific operations implementation.
3644 int rte_eth_dev_get_eeprom(uint8_t port_id, struct rte_dev_eeprom_info *info);
3647 * Program EEPROM with provided data
3650 * The port identifier of the Ethernet device.
3652 * The template includes EEPROM data for programming and
3653 * EEPROM attributes to be filled
3655 * - (0) if successful.
3656 * - (-ENOTSUP) if hardware doesn't support.
3657 * - (-ENODEV) if *port_id* invalid.
3658 * - others depends on the specific operations implementation.
3660 int rte_eth_dev_set_eeprom(uint8_t port_id, struct rte_dev_eeprom_info *info);
3663 * Set the list of multicast addresses to filter on an Ethernet device.
3666 * The port identifier of the Ethernet device.
3667 * @param mc_addr_set
3668 * The array of multicast addresses to set. Equal to NULL when the function
3669 * is invoked to flush the set of filtered addresses.
3671 * The number of multicast addresses in the *mc_addr_set* array. Equal to 0
3672 * when the function is invoked to flush the set of filtered addresses.
3674 * - (0) if successful.
3675 * - (-ENODEV) if *port_id* invalid.
3676 * - (-ENOTSUP) if PMD of *port_id* doesn't support multicast filtering.
3677 * - (-ENOSPC) if *port_id* has not enough multicast filtering resources.
3679 int rte_eth_dev_set_mc_addr_list(uint8_t port_id,
3680 struct ether_addr *mc_addr_set,
3681 uint32_t nb_mc_addr);
3684 * Enable IEEE1588/802.1AS timestamping for an Ethernet device.
3687 * The port identifier of the Ethernet device.
3691 * - -ENODEV: The port ID is invalid.
3692 * - -ENOTSUP: The function is not supported by the Ethernet driver.
3694 extern int rte_eth_timesync_enable(uint8_t port_id);
3697 * Disable IEEE1588/802.1AS timestamping for an Ethernet device.
3700 * The port identifier of the Ethernet device.
3704 * - -ENODEV: The port ID is invalid.
3705 * - -ENOTSUP: The function is not supported by the Ethernet driver.
3707 extern int rte_eth_timesync_disable(uint8_t port_id);
3710 * Read an IEEE1588/802.1AS RX timestamp from an Ethernet device.
3713 * The port identifier of the Ethernet device.
3715 * Pointer to the timestamp struct.
3717 * Device specific flags. Used to pass the RX timesync register index to
3718 * i40e. Unused in igb/ixgbe, pass 0 instead.
3722 * - -EINVAL: No timestamp is available.
3723 * - -ENODEV: The port ID is invalid.
3724 * - -ENOTSUP: The function is not supported by the Ethernet driver.
3726 extern int rte_eth_timesync_read_rx_timestamp(uint8_t port_id,
3727 struct timespec *timestamp,
3731 * Read an IEEE1588/802.1AS TX timestamp from an Ethernet device.
3734 * The port identifier of the Ethernet device.
3736 * Pointer to the timestamp struct.
3740 * - -EINVAL: No timestamp is available.
3741 * - -ENODEV: The port ID is invalid.
3742 * - -ENOTSUP: The function is not supported by the Ethernet driver.
3744 extern int rte_eth_timesync_read_tx_timestamp(uint8_t port_id,
3745 struct timespec *timestamp);
3748 * Copy pci device info to the Ethernet device data.
3751 * The *eth_dev* pointer is the address of the *rte_eth_dev* structure.
3753 * The *pci_dev* pointer is the address of the *rte_pci_device* structure.
3756 * - 0 on success, negative on error
3758 extern void rte_eth_copy_pci_info(struct rte_eth_dev *eth_dev, struct rte_pci_device *pci_dev);
3765 #endif /* _RTE_ETHDEV_H_ */