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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).
201 uint64_t ibadcrc __rte_deprecated;
202 /**< Deprecated; Total of RX packets with CRC error. */
203 uint64_t ibadlen __rte_deprecated;
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. */
210 uint64_t fdirmatch __rte_deprecated;
211 /**< Deprecated; Total number of RX packets matching a filter. */
212 uint64_t fdirmiss __rte_deprecated;
213 /**< Deprecated; Total number of RX packets not matching any filter. */
214 uint64_t tx_pause_xon __rte_deprecated;
215 /**< Deprecated; Total nb. of XON pause frame sent. */
216 uint64_t rx_pause_xon __rte_deprecated;
217 /**< Deprecated; Total nb. of XON pause frame received. */
218 uint64_t tx_pause_xoff __rte_deprecated;
219 /**< Deprecated; Total nb. of XOFF pause frame sent. */
220 uint64_t rx_pause_xoff __rte_deprecated;
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;
925 #define RTE_ETH_QUEUE_STATE_STOPPED 0
926 #define RTE_ETH_QUEUE_STATE_STARTED 1
930 struct rte_eth_dev_callback;
931 /** @internal Structure to keep track of registered callbacks */
932 TAILQ_HEAD(rte_eth_dev_cb_list, rte_eth_dev_callback);
935 * Definitions of all functions exported by an Ethernet driver through the
936 * the generic structure of type *eth_dev_ops* supplied in the *rte_eth_dev*
937 * structure associated with an Ethernet device.
940 typedef int (*eth_dev_configure_t)(struct rte_eth_dev *dev);
941 /**< @internal Ethernet device configuration. */
943 typedef int (*eth_dev_start_t)(struct rte_eth_dev *dev);
944 /**< @internal Function used to start a configured Ethernet device. */
946 typedef void (*eth_dev_stop_t)(struct rte_eth_dev *dev);
947 /**< @internal Function used to stop a configured Ethernet device. */
949 typedef int (*eth_dev_set_link_up_t)(struct rte_eth_dev *dev);
950 /**< @internal Function used to link up a configured Ethernet device. */
952 typedef int (*eth_dev_set_link_down_t)(struct rte_eth_dev *dev);
953 /**< @internal Function used to link down a configured Ethernet device. */
955 typedef void (*eth_dev_close_t)(struct rte_eth_dev *dev);
956 /**< @internal Function used to close a configured Ethernet device. */
958 typedef void (*eth_promiscuous_enable_t)(struct rte_eth_dev *dev);
959 /**< @internal Function used to enable the RX promiscuous mode of an Ethernet device. */
961 typedef void (*eth_promiscuous_disable_t)(struct rte_eth_dev *dev);
962 /**< @internal Function used to disable the RX promiscuous mode of an Ethernet device. */
964 typedef void (*eth_allmulticast_enable_t)(struct rte_eth_dev *dev);
965 /**< @internal Enable the receipt of all multicast packets by an Ethernet device. */
967 typedef void (*eth_allmulticast_disable_t)(struct rte_eth_dev *dev);
968 /**< @internal Disable the receipt of all multicast packets by an Ethernet device. */
970 typedef int (*eth_link_update_t)(struct rte_eth_dev *dev,
971 int wait_to_complete);
972 /**< @internal Get link speed, duplex mode and state (up/down) of an Ethernet device. */
974 typedef void (*eth_stats_get_t)(struct rte_eth_dev *dev,
975 struct rte_eth_stats *igb_stats);
976 /**< @internal Get global I/O statistics of an Ethernet device. */
978 typedef void (*eth_stats_reset_t)(struct rte_eth_dev *dev);
979 /**< @internal Reset global I/O statistics of an Ethernet device to 0. */
981 typedef int (*eth_xstats_get_t)(struct rte_eth_dev *dev,
982 struct rte_eth_xstats *stats, unsigned n);
983 /**< @internal Get extended stats of an Ethernet device. */
985 typedef void (*eth_xstats_reset_t)(struct rte_eth_dev *dev);
986 /**< @internal Reset extended stats of an Ethernet device. */
988 typedef int (*eth_queue_stats_mapping_set_t)(struct rte_eth_dev *dev,
992 /**< @internal Set a queue statistics mapping for a tx/rx queue of an Ethernet device. */
994 typedef void (*eth_dev_infos_get_t)(struct rte_eth_dev *dev,
995 struct rte_eth_dev_info *dev_info);
996 /**< @internal Get specific informations of an Ethernet device. */
998 typedef int (*eth_queue_start_t)(struct rte_eth_dev *dev,
1000 /**< @internal Start rx and tx of a queue of an Ethernet device. */
1002 typedef int (*eth_queue_stop_t)(struct rte_eth_dev *dev,
1004 /**< @internal Stop rx and tx of a queue of an Ethernet device. */
1006 typedef int (*eth_rx_queue_setup_t)(struct rte_eth_dev *dev,
1007 uint16_t rx_queue_id,
1008 uint16_t nb_rx_desc,
1009 unsigned int socket_id,
1010 const struct rte_eth_rxconf *rx_conf,
1011 struct rte_mempool *mb_pool);
1012 /**< @internal Set up a receive queue of an Ethernet device. */
1014 typedef int (*eth_tx_queue_setup_t)(struct rte_eth_dev *dev,
1015 uint16_t tx_queue_id,
1016 uint16_t nb_tx_desc,
1017 unsigned int socket_id,
1018 const struct rte_eth_txconf *tx_conf);
1019 /**< @internal Setup a transmit queue of an Ethernet device. */
1021 typedef int (*eth_rx_enable_intr_t)(struct rte_eth_dev *dev,
1022 uint16_t rx_queue_id);
1023 /**< @internal Enable interrupt of a receive queue of an Ethernet device. */
1025 typedef int (*eth_rx_disable_intr_t)(struct rte_eth_dev *dev,
1026 uint16_t rx_queue_id);
1027 /**< @internal Disable interrupt of a receive queue of an Ethernet device. */
1029 typedef void (*eth_queue_release_t)(void *queue);
1030 /**< @internal Release memory resources allocated by given RX/TX queue. */
1032 typedef uint32_t (*eth_rx_queue_count_t)(struct rte_eth_dev *dev,
1033 uint16_t rx_queue_id);
1034 /**< @internal Get number of available descriptors on a receive queue of an Ethernet device. */
1036 typedef int (*eth_rx_descriptor_done_t)(void *rxq, uint16_t offset);
1037 /**< @internal Check DD bit of specific RX descriptor */
1039 typedef void (*eth_rxq_info_get_t)(struct rte_eth_dev *dev,
1040 uint16_t rx_queue_id, struct rte_eth_rxq_info *qinfo);
1042 typedef void (*eth_txq_info_get_t)(struct rte_eth_dev *dev,
1043 uint16_t tx_queue_id, struct rte_eth_txq_info *qinfo);
1045 typedef int (*mtu_set_t)(struct rte_eth_dev *dev, uint16_t mtu);
1046 /**< @internal Set MTU. */
1048 typedef int (*vlan_filter_set_t)(struct rte_eth_dev *dev,
1051 /**< @internal filtering of a VLAN Tag Identifier by an Ethernet device. */
1053 typedef void (*vlan_tpid_set_t)(struct rte_eth_dev *dev,
1055 /**< @internal set the outer VLAN-TPID by an Ethernet device. */
1057 typedef void (*vlan_offload_set_t)(struct rte_eth_dev *dev, int mask);
1058 /**< @internal set VLAN offload function by an Ethernet device. */
1060 typedef int (*vlan_pvid_set_t)(struct rte_eth_dev *dev,
1063 /**< @internal set port based TX VLAN insertion by an Ethernet device. */
1065 typedef void (*vlan_strip_queue_set_t)(struct rte_eth_dev *dev,
1066 uint16_t rx_queue_id,
1068 /**< @internal VLAN stripping enable/disable by an queue of Ethernet device. */
1070 typedef uint16_t (*eth_rx_burst_t)(void *rxq,
1071 struct rte_mbuf **rx_pkts,
1073 /**< @internal Retrieve input packets from a receive queue of an Ethernet device. */
1075 typedef uint16_t (*eth_tx_burst_t)(void *txq,
1076 struct rte_mbuf **tx_pkts,
1078 /**< @internal Send output packets on a transmit queue of an Ethernet device. */
1080 typedef int (*flow_ctrl_get_t)(struct rte_eth_dev *dev,
1081 struct rte_eth_fc_conf *fc_conf);
1082 /**< @internal Get current flow control parameter on an Ethernet device */
1084 typedef int (*flow_ctrl_set_t)(struct rte_eth_dev *dev,
1085 struct rte_eth_fc_conf *fc_conf);
1086 /**< @internal Setup flow control parameter on an Ethernet device */
1088 typedef int (*priority_flow_ctrl_set_t)(struct rte_eth_dev *dev,
1089 struct rte_eth_pfc_conf *pfc_conf);
1090 /**< @internal Setup priority flow control parameter on an Ethernet device */
1092 typedef int (*reta_update_t)(struct rte_eth_dev *dev,
1093 struct rte_eth_rss_reta_entry64 *reta_conf,
1094 uint16_t reta_size);
1095 /**< @internal Update RSS redirection table on an Ethernet device */
1097 typedef int (*reta_query_t)(struct rte_eth_dev *dev,
1098 struct rte_eth_rss_reta_entry64 *reta_conf,
1099 uint16_t reta_size);
1100 /**< @internal Query RSS redirection table on an Ethernet device */
1102 typedef int (*rss_hash_update_t)(struct rte_eth_dev *dev,
1103 struct rte_eth_rss_conf *rss_conf);
1104 /**< @internal Update RSS hash configuration of an Ethernet device */
1106 typedef int (*rss_hash_conf_get_t)(struct rte_eth_dev *dev,
1107 struct rte_eth_rss_conf *rss_conf);
1108 /**< @internal Get current RSS hash configuration of an Ethernet device */
1110 typedef int (*eth_dev_led_on_t)(struct rte_eth_dev *dev);
1111 /**< @internal Turn on SW controllable LED on an Ethernet device */
1113 typedef int (*eth_dev_led_off_t)(struct rte_eth_dev *dev);
1114 /**< @internal Turn off SW controllable LED on an Ethernet device */
1116 typedef void (*eth_mac_addr_remove_t)(struct rte_eth_dev *dev, uint32_t index);
1117 /**< @internal Remove MAC address from receive address register */
1119 typedef void (*eth_mac_addr_add_t)(struct rte_eth_dev *dev,
1120 struct ether_addr *mac_addr,
1123 /**< @internal Set a MAC address into Receive Address Address Register */
1125 typedef void (*eth_mac_addr_set_t)(struct rte_eth_dev *dev,
1126 struct ether_addr *mac_addr);
1127 /**< @internal Set a MAC address into Receive Address Address Register */
1129 typedef int (*eth_uc_hash_table_set_t)(struct rte_eth_dev *dev,
1130 struct ether_addr *mac_addr,
1132 /**< @internal Set a Unicast Hash bitmap */
1134 typedef int (*eth_uc_all_hash_table_set_t)(struct rte_eth_dev *dev,
1136 /**< @internal Set all Unicast Hash bitmap */
1138 typedef int (*eth_set_vf_rx_mode_t)(struct rte_eth_dev *dev,
1142 /**< @internal Set a VF receive mode */
1144 typedef int (*eth_set_vf_rx_t)(struct rte_eth_dev *dev,
1147 /**< @internal Set a VF receive mode */
1149 typedef int (*eth_set_vf_tx_t)(struct rte_eth_dev *dev,
1152 /**< @internal Enable or disable a VF transmit */
1154 typedef int (*eth_set_vf_vlan_filter_t)(struct rte_eth_dev *dev,
1158 /**< @internal Set VF VLAN pool filter */
1160 typedef int (*eth_set_queue_rate_limit_t)(struct rte_eth_dev *dev,
1163 /**< @internal Set queue TX rate */
1165 typedef int (*eth_set_vf_rate_limit_t)(struct rte_eth_dev *dev,
1169 /**< @internal Set VF TX rate */
1171 typedef int (*eth_mirror_rule_set_t)(struct rte_eth_dev *dev,
1172 struct rte_eth_mirror_conf *mirror_conf,
1175 /**< @internal Add a traffic mirroring rule on an Ethernet device */
1177 typedef int (*eth_mirror_rule_reset_t)(struct rte_eth_dev *dev,
1179 /**< @internal Remove a traffic mirroring rule on an Ethernet device */
1181 typedef int (*eth_udp_tunnel_add_t)(struct rte_eth_dev *dev,
1182 struct rte_eth_udp_tunnel *tunnel_udp);
1183 /**< @internal Add tunneling UDP info */
1185 typedef int (*eth_udp_tunnel_del_t)(struct rte_eth_dev *dev,
1186 struct rte_eth_udp_tunnel *tunnel_udp);
1187 /**< @internal Delete tunneling UDP info */
1189 typedef int (*eth_set_mc_addr_list_t)(struct rte_eth_dev *dev,
1190 struct ether_addr *mc_addr_set,
1191 uint32_t nb_mc_addr);
1192 /**< @internal set the list of multicast addresses on an Ethernet device */
1194 typedef int (*eth_timesync_enable_t)(struct rte_eth_dev *dev);
1195 /**< @internal Function used to enable IEEE1588/802.1AS timestamping. */
1197 typedef int (*eth_timesync_disable_t)(struct rte_eth_dev *dev);
1198 /**< @internal Function used to disable IEEE1588/802.1AS timestamping. */
1200 typedef int (*eth_timesync_read_rx_timestamp_t)(struct rte_eth_dev *dev,
1201 struct timespec *timestamp,
1203 /**< @internal Function used to read an RX IEEE1588/802.1AS timestamp. */
1205 typedef int (*eth_timesync_read_tx_timestamp_t)(struct rte_eth_dev *dev,
1206 struct timespec *timestamp);
1207 /**< @internal Function used to read a TX IEEE1588/802.1AS timestamp. */
1209 typedef int (*eth_timesync_adjust_time)(struct rte_eth_dev *dev, int64_t);
1210 /**< @internal Function used to adjust the device clock */
1212 typedef int (*eth_timesync_read_time)(struct rte_eth_dev *dev,
1213 struct timespec *timestamp);
1214 /**< @internal Function used to get time from the device clock. */
1216 typedef int (*eth_timesync_write_time)(struct rte_eth_dev *dev,
1217 const struct timespec *timestamp);
1218 /**< @internal Function used to get time from the device clock */
1220 typedef int (*eth_get_reg_length_t)(struct rte_eth_dev *dev);
1221 /**< @internal Retrieve device register count */
1223 typedef int (*eth_get_reg_t)(struct rte_eth_dev *dev,
1224 struct rte_dev_reg_info *info);
1225 /**< @internal Retrieve registers */
1227 typedef int (*eth_get_eeprom_length_t)(struct rte_eth_dev *dev);
1228 /**< @internal Retrieve eeprom size */
1230 typedef int (*eth_get_eeprom_t)(struct rte_eth_dev *dev,
1231 struct rte_dev_eeprom_info *info);
1232 /**< @internal Retrieve eeprom data */
1234 typedef int (*eth_set_eeprom_t)(struct rte_eth_dev *dev,
1235 struct rte_dev_eeprom_info *info);
1236 /**< @internal Program eeprom data */
1238 #ifdef RTE_NIC_BYPASS
1241 RTE_BYPASS_MODE_NONE,
1242 RTE_BYPASS_MODE_NORMAL,
1243 RTE_BYPASS_MODE_BYPASS,
1244 RTE_BYPASS_MODE_ISOLATE,
1245 RTE_BYPASS_MODE_NUM,
1248 #define RTE_BYPASS_MODE_VALID(x) \
1249 ((x) > RTE_BYPASS_MODE_NONE && (x) < RTE_BYPASS_MODE_NUM)
1252 RTE_BYPASS_EVENT_NONE,
1253 RTE_BYPASS_EVENT_START,
1254 RTE_BYPASS_EVENT_OS_ON = RTE_BYPASS_EVENT_START,
1255 RTE_BYPASS_EVENT_POWER_ON,
1256 RTE_BYPASS_EVENT_OS_OFF,
1257 RTE_BYPASS_EVENT_POWER_OFF,
1258 RTE_BYPASS_EVENT_TIMEOUT,
1259 RTE_BYPASS_EVENT_NUM
1262 #define RTE_BYPASS_EVENT_VALID(x) \
1263 ((x) > RTE_BYPASS_EVENT_NONE && (x) < RTE_BYPASS_MODE_NUM)
1266 RTE_BYPASS_TMT_OFF, /* timeout disabled. */
1267 RTE_BYPASS_TMT_1_5_SEC, /* timeout for 1.5 seconds */
1268 RTE_BYPASS_TMT_2_SEC, /* timeout for 2 seconds */
1269 RTE_BYPASS_TMT_3_SEC, /* timeout for 3 seconds */
1270 RTE_BYPASS_TMT_4_SEC, /* timeout for 4 seconds */
1271 RTE_BYPASS_TMT_8_SEC, /* timeout for 8 seconds */
1272 RTE_BYPASS_TMT_16_SEC, /* timeout for 16 seconds */
1273 RTE_BYPASS_TMT_32_SEC, /* timeout for 32 seconds */
1277 #define RTE_BYPASS_TMT_VALID(x) \
1278 ((x) == RTE_BYPASS_TMT_OFF || \
1279 ((x) > RTE_BYPASS_TMT_OFF && (x) < RTE_BYPASS_TMT_NUM))
1281 typedef void (*bypass_init_t)(struct rte_eth_dev *dev);
1282 typedef int32_t (*bypass_state_set_t)(struct rte_eth_dev *dev, uint32_t *new_state);
1283 typedef int32_t (*bypass_state_show_t)(struct rte_eth_dev *dev, uint32_t *state);
1284 typedef int32_t (*bypass_event_set_t)(struct rte_eth_dev *dev, uint32_t state, uint32_t event);
1285 typedef int32_t (*bypass_event_show_t)(struct rte_eth_dev *dev, uint32_t event_shift, uint32_t *event);
1286 typedef int32_t (*bypass_wd_timeout_set_t)(struct rte_eth_dev *dev, uint32_t timeout);
1287 typedef int32_t (*bypass_wd_timeout_show_t)(struct rte_eth_dev *dev, uint32_t *wd_timeout);
1288 typedef int32_t (*bypass_ver_show_t)(struct rte_eth_dev *dev, uint32_t *ver);
1289 typedef int32_t (*bypass_wd_reset_t)(struct rte_eth_dev *dev);
1292 typedef int (*eth_filter_ctrl_t)(struct rte_eth_dev *dev,
1293 enum rte_filter_type filter_type,
1294 enum rte_filter_op filter_op,
1296 /**< @internal Take operations to assigned filter type on an Ethernet device */
1298 typedef int (*eth_get_dcb_info)(struct rte_eth_dev *dev,
1299 struct rte_eth_dcb_info *dcb_info);
1300 /**< @internal Get dcb information on an Ethernet device */
1303 * @internal A structure containing the functions exported by an Ethernet driver.
1305 struct eth_dev_ops {
1306 eth_dev_configure_t dev_configure; /**< Configure device. */
1307 eth_dev_start_t dev_start; /**< Start device. */
1308 eth_dev_stop_t dev_stop; /**< Stop device. */
1309 eth_dev_set_link_up_t dev_set_link_up; /**< Device link up. */
1310 eth_dev_set_link_down_t dev_set_link_down; /**< Device link down. */
1311 eth_dev_close_t dev_close; /**< Close device. */
1312 eth_promiscuous_enable_t promiscuous_enable; /**< Promiscuous ON. */
1313 eth_promiscuous_disable_t promiscuous_disable;/**< Promiscuous OFF. */
1314 eth_allmulticast_enable_t allmulticast_enable;/**< RX multicast ON. */
1315 eth_allmulticast_disable_t allmulticast_disable;/**< RX multicast OF. */
1316 eth_link_update_t link_update; /**< Get device link state. */
1317 eth_stats_get_t stats_get; /**< Get generic device statistics. */
1318 eth_stats_reset_t stats_reset; /**< Reset generic device statistics. */
1319 eth_xstats_get_t xstats_get; /**< Get extended device statistics. */
1320 eth_xstats_reset_t xstats_reset; /**< Reset extended device statistics. */
1321 eth_queue_stats_mapping_set_t queue_stats_mapping_set;
1322 /**< Configure per queue stat counter mapping. */
1323 eth_dev_infos_get_t dev_infos_get; /**< Get device info. */
1324 mtu_set_t mtu_set; /**< Set MTU. */
1325 vlan_filter_set_t vlan_filter_set; /**< Filter VLAN Setup. */
1326 vlan_tpid_set_t vlan_tpid_set; /**< Outer VLAN TPID Setup. */
1327 vlan_strip_queue_set_t vlan_strip_queue_set; /**< VLAN Stripping on queue. */
1328 vlan_offload_set_t vlan_offload_set; /**< Set VLAN Offload. */
1329 vlan_pvid_set_t vlan_pvid_set; /**< Set port based TX VLAN insertion */
1330 eth_queue_start_t rx_queue_start;/**< Start RX for a queue.*/
1331 eth_queue_stop_t rx_queue_stop;/**< Stop RX for a queue.*/
1332 eth_queue_start_t tx_queue_start;/**< Start TX for a queue.*/
1333 eth_queue_stop_t tx_queue_stop;/**< Stop TX for a queue.*/
1334 eth_rx_queue_setup_t rx_queue_setup;/**< Set up device RX queue.*/
1335 eth_queue_release_t rx_queue_release;/**< Release RX queue.*/
1336 eth_rx_queue_count_t rx_queue_count; /**< Get Rx queue count. */
1337 eth_rx_descriptor_done_t rx_descriptor_done; /**< Check rxd DD bit */
1338 /**< Enable Rx queue interrupt. */
1339 eth_rx_enable_intr_t rx_queue_intr_enable;
1340 /**< Disable Rx queue interrupt.*/
1341 eth_rx_disable_intr_t rx_queue_intr_disable;
1342 eth_tx_queue_setup_t tx_queue_setup;/**< Set up device TX queue.*/
1343 eth_queue_release_t tx_queue_release;/**< Release TX queue.*/
1344 eth_dev_led_on_t dev_led_on; /**< Turn on LED. */
1345 eth_dev_led_off_t dev_led_off; /**< Turn off LED. */
1346 flow_ctrl_get_t flow_ctrl_get; /**< Get flow control. */
1347 flow_ctrl_set_t flow_ctrl_set; /**< Setup flow control. */
1348 priority_flow_ctrl_set_t priority_flow_ctrl_set; /**< Setup priority flow control.*/
1349 eth_mac_addr_remove_t mac_addr_remove; /**< Remove MAC address */
1350 eth_mac_addr_add_t mac_addr_add; /**< Add a MAC address */
1351 eth_mac_addr_set_t mac_addr_set; /**< Set a MAC address */
1352 eth_uc_hash_table_set_t uc_hash_table_set; /**< Set Unicast Table Array */
1353 eth_uc_all_hash_table_set_t uc_all_hash_table_set; /**< Set Unicast hash bitmap */
1354 eth_mirror_rule_set_t mirror_rule_set; /**< Add a traffic mirror rule.*/
1355 eth_mirror_rule_reset_t mirror_rule_reset; /**< reset a traffic mirror rule.*/
1356 eth_set_vf_rx_mode_t set_vf_rx_mode; /**< Set VF RX mode */
1357 eth_set_vf_rx_t set_vf_rx; /**< enable/disable a VF receive */
1358 eth_set_vf_tx_t set_vf_tx; /**< enable/disable a VF transmit */
1359 eth_set_vf_vlan_filter_t set_vf_vlan_filter; /**< Set VF VLAN filter */
1360 eth_udp_tunnel_add_t udp_tunnel_add;
1361 eth_udp_tunnel_del_t udp_tunnel_del;
1362 eth_set_queue_rate_limit_t set_queue_rate_limit; /**< Set queue rate limit */
1363 eth_set_vf_rate_limit_t set_vf_rate_limit; /**< Set VF rate limit */
1364 /** Update redirection table. */
1365 reta_update_t reta_update;
1366 /** Query redirection table. */
1367 reta_query_t reta_query;
1369 eth_get_reg_length_t get_reg_length;
1370 /**< Get # of registers */
1371 eth_get_reg_t get_reg;
1372 /**< Get registers */
1373 eth_get_eeprom_length_t get_eeprom_length;
1374 /**< Get eeprom length */
1375 eth_get_eeprom_t get_eeprom;
1376 /**< Get eeprom data */
1377 eth_set_eeprom_t set_eeprom;
1379 /* bypass control */
1380 #ifdef RTE_NIC_BYPASS
1381 bypass_init_t bypass_init;
1382 bypass_state_set_t bypass_state_set;
1383 bypass_state_show_t bypass_state_show;
1384 bypass_event_set_t bypass_event_set;
1385 bypass_event_show_t bypass_event_show;
1386 bypass_wd_timeout_set_t bypass_wd_timeout_set;
1387 bypass_wd_timeout_show_t bypass_wd_timeout_show;
1388 bypass_ver_show_t bypass_ver_show;
1389 bypass_wd_reset_t bypass_wd_reset;
1392 /** Configure RSS hash protocols. */
1393 rss_hash_update_t rss_hash_update;
1394 /** Get current RSS hash configuration. */
1395 rss_hash_conf_get_t rss_hash_conf_get;
1396 eth_filter_ctrl_t filter_ctrl;
1397 /**< common filter control. */
1398 eth_set_mc_addr_list_t set_mc_addr_list; /**< set list of mcast addrs */
1399 eth_rxq_info_get_t rxq_info_get;
1400 /**< retrieve RX queue information. */
1401 eth_txq_info_get_t txq_info_get;
1402 /**< retrieve TX queue information. */
1403 /** Turn IEEE1588/802.1AS timestamping on. */
1404 eth_timesync_enable_t timesync_enable;
1405 /** Turn IEEE1588/802.1AS timestamping off. */
1406 eth_timesync_disable_t timesync_disable;
1407 /** Read the IEEE1588/802.1AS RX timestamp. */
1408 eth_timesync_read_rx_timestamp_t timesync_read_rx_timestamp;
1409 /** Read the IEEE1588/802.1AS TX timestamp. */
1410 eth_timesync_read_tx_timestamp_t timesync_read_tx_timestamp;
1412 /** Get DCB information */
1413 eth_get_dcb_info get_dcb_info;
1414 /** Adjust the device clock.*/
1415 eth_timesync_adjust_time timesync_adjust_time;
1416 /** Get the device clock time. */
1417 eth_timesync_read_time timesync_read_time;
1418 /** Set the device clock time. */
1419 eth_timesync_write_time timesync_write_time;
1423 * Function type used for RX packet processing packet callbacks.
1425 * The callback function is called on RX with a burst of packets that have
1426 * been received on the given port and queue.
1429 * The Ethernet port on which RX is being performed.
1431 * The queue on the Ethernet port which is being used to receive the packets.
1433 * The burst of packets that have just been received.
1435 * The number of packets in the burst pointed to by "pkts".
1437 * The max number of packets that can be stored in the "pkts" array.
1439 * The arbitrary user parameter passed in by the application when the callback
1440 * was originally configured.
1442 * The number of packets returned to the user.
1444 typedef uint16_t (*rte_rx_callback_fn)(uint8_t port, uint16_t queue,
1445 struct rte_mbuf *pkts[], uint16_t nb_pkts, uint16_t max_pkts,
1449 * Function type used for TX packet processing packet callbacks.
1451 * The callback function is called on TX with a burst of packets immediately
1452 * before the packets are put onto the hardware queue for transmission.
1455 * The Ethernet port on which TX is being performed.
1457 * The queue on the Ethernet port which is being used to transmit the packets.
1459 * The burst of packets that are about to be transmitted.
1461 * The number of packets in the burst pointed to by "pkts".
1463 * The arbitrary user parameter passed in by the application when the callback
1464 * was originally configured.
1466 * The number of packets to be written to the NIC.
1468 typedef uint16_t (*rte_tx_callback_fn)(uint8_t port, uint16_t queue,
1469 struct rte_mbuf *pkts[], uint16_t nb_pkts, void *user_param);
1473 * Structure used to hold information about the callbacks to be called for a
1474 * queue on RX and TX.
1476 struct rte_eth_rxtx_callback {
1477 struct rte_eth_rxtx_callback *next;
1479 rte_rx_callback_fn rx;
1480 rte_tx_callback_fn tx;
1486 * The eth device type.
1488 enum rte_eth_dev_type {
1489 RTE_ETH_DEV_UNKNOWN, /**< unknown device type */
1491 /**< Physical function and Virtual function of PCI devices */
1492 RTE_ETH_DEV_VIRTUAL, /**< non hardware device */
1493 RTE_ETH_DEV_MAX /**< max value of this enum */
1498 * The generic data structure associated with each ethernet device.
1500 * Pointers to burst-oriented packet receive and transmit functions are
1501 * located at the beginning of the structure, along with the pointer to
1502 * where all the data elements for the particular device are stored in shared
1503 * memory. This split allows the function pointer and driver data to be per-
1504 * process, while the actual configuration data for the device is shared.
1506 struct rte_eth_dev {
1507 eth_rx_burst_t rx_pkt_burst; /**< Pointer to PMD receive function. */
1508 eth_tx_burst_t tx_pkt_burst; /**< Pointer to PMD transmit function. */
1509 struct rte_eth_dev_data *data; /**< Pointer to device data */
1510 const struct eth_driver *driver;/**< Driver for this device */
1511 const struct eth_dev_ops *dev_ops; /**< Functions exported by PMD */
1512 struct rte_pci_device *pci_dev; /**< PCI info. supplied by probing */
1513 /** User application callbacks for NIC interrupts */
1514 struct rte_eth_dev_cb_list link_intr_cbs;
1516 * User-supplied functions called from rx_burst to post-process
1517 * received packets before passing them to the user
1519 struct rte_eth_rxtx_callback *post_rx_burst_cbs[RTE_MAX_QUEUES_PER_PORT];
1521 * User-supplied functions called from tx_burst to pre-process
1522 * received packets before passing them to the driver for transmission.
1524 struct rte_eth_rxtx_callback *pre_tx_burst_cbs[RTE_MAX_QUEUES_PER_PORT];
1525 uint8_t attached; /**< Flag indicating the port is attached */
1526 enum rte_eth_dev_type dev_type; /**< Flag indicating the device type */
1529 struct rte_eth_dev_sriov {
1530 uint8_t active; /**< SRIOV is active with 16, 32 or 64 pools */
1531 uint8_t nb_q_per_pool; /**< rx queue number per pool */
1532 uint16_t def_vmdq_idx; /**< Default pool num used for PF */
1533 uint16_t def_pool_q_idx; /**< Default pool queue start reg index */
1535 #define RTE_ETH_DEV_SRIOV(dev) ((dev)->data->sriov)
1537 #define RTE_ETH_NAME_MAX_LEN (32)
1541 * The data part, with no function pointers, associated with each ethernet device.
1543 * This structure is safe to place in shared memory to be common among different
1544 * processes in a multi-process configuration.
1546 struct rte_eth_dev_data {
1547 char name[RTE_ETH_NAME_MAX_LEN]; /**< Unique identifier name */
1549 void **rx_queues; /**< Array of pointers to RX queues. */
1550 void **tx_queues; /**< Array of pointers to TX queues. */
1551 uint16_t nb_rx_queues; /**< Number of RX queues. */
1552 uint16_t nb_tx_queues; /**< Number of TX queues. */
1554 struct rte_eth_dev_sriov sriov; /**< SRIOV data */
1556 void *dev_private; /**< PMD-specific private data */
1558 struct rte_eth_link dev_link;
1559 /**< Link-level information & status */
1561 struct rte_eth_conf dev_conf; /**< Configuration applied to device. */
1562 uint16_t mtu; /**< Maximum Transmission Unit. */
1564 uint32_t min_rx_buf_size;
1565 /**< Common rx buffer size handled by all queues */
1567 uint64_t rx_mbuf_alloc_failed; /**< RX ring mbuf allocation failures. */
1568 struct ether_addr* mac_addrs;/**< Device Ethernet Link address. */
1569 uint64_t mac_pool_sel[ETH_NUM_RECEIVE_MAC_ADDR];
1570 /** bitmap array of associating Ethernet MAC addresses to pools */
1571 struct ether_addr* hash_mac_addrs;
1572 /** Device Ethernet MAC addresses of hash filtering. */
1573 uint8_t port_id; /**< Device [external] port identifier. */
1574 uint8_t promiscuous : 1, /**< RX promiscuous mode ON(1) / OFF(0). */
1575 scattered_rx : 1, /**< RX of scattered packets is ON(1) / OFF(0) */
1576 all_multicast : 1, /**< RX all multicast mode ON(1) / OFF(0). */
1577 dev_started : 1, /**< Device state: STARTED(1) / STOPPED(0). */
1578 lro : 1; /**< RX LRO is ON(1) / OFF(0) */
1579 uint8_t rx_queue_state[RTE_MAX_QUEUES_PER_PORT];
1580 /** Queues state: STARTED(1) / STOPPED(0) */
1581 uint8_t tx_queue_state[RTE_MAX_QUEUES_PER_PORT];
1582 /** Queues state: STARTED(1) / STOPPED(0) */
1583 uint32_t dev_flags; /**< Capabilities */
1584 enum rte_kernel_driver kdrv; /**< Kernel driver passthrough */
1585 int numa_node; /**< NUMA node connection */
1586 const char *drv_name; /**< Driver name */
1589 /** Device supports hotplug detach */
1590 #define RTE_ETH_DEV_DETACHABLE 0x0001
1591 /** Device supports link state interrupt */
1592 #define RTE_ETH_DEV_INTR_LSC 0x0002
1596 * The pool of *rte_eth_dev* structures. The size of the pool
1597 * is configured at compile-time in the <rte_ethdev.c> file.
1599 extern struct rte_eth_dev rte_eth_devices[];
1602 * Get the total number of Ethernet devices that have been successfully
1603 * initialized by the [matching] Ethernet driver during the PCI probing phase.
1604 * All devices whose port identifier is in the range
1605 * [0, rte_eth_dev_count() - 1] can be operated on by network applications
1606 * immediately after invoking rte_eal_init().
1607 * If the application unplugs a port using hotplug function, The enabled port
1608 * numbers may be noncontiguous. In the case, the applications need to manage
1609 * enabled port by themselves.
1612 * - The total number of usable Ethernet devices.
1614 extern uint8_t rte_eth_dev_count(void);
1618 * Returns a ethdev slot specified by the unique identifier name.
1621 * The pointer to the Unique identifier name for each Ethernet device
1623 * - The pointer to the ethdev slot, on success. NULL on error
1625 extern struct rte_eth_dev *rte_eth_dev_allocated(const char *name);
1629 * Allocates a new ethdev slot for an ethernet device and returns the pointer
1630 * to that slot for the driver to use.
1632 * @param name Unique identifier name for each Ethernet device
1633 * @param type Device type of this Ethernet device
1635 * - Slot in the rte_dev_devices array for a new device;
1637 struct rte_eth_dev *rte_eth_dev_allocate(const char *name,
1638 enum rte_eth_dev_type type);
1642 * Release the specified ethdev port.
1645 * The *eth_dev* pointer is the address of the *rte_eth_dev* structure.
1647 * - 0 on success, negative on error
1649 int rte_eth_dev_release_port(struct rte_eth_dev *eth_dev);
1652 * Attach a new Ethernet device specified by aruguments.
1655 * A pointer to a strings array describing the new device
1656 * to be attached. The strings should be a pci address like
1657 * '0000:01:00.0' or virtual device name like 'eth_pcap0'.
1659 * A pointer to a port identifier actually attached.
1661 * 0 on success and port_id is filled, negative on error
1663 int rte_eth_dev_attach(const char *devargs, uint8_t *port_id);
1666 * Detach a Ethernet device specified by port identifier.
1667 * This function must be called when the device is in the
1671 * The port identifier of the device to detach.
1673 * A pointer to a device name actually detached.
1675 * 0 on success and devname is filled, negative on error
1677 int rte_eth_dev_detach(uint8_t port_id, char *devname);
1682 * Initialization function of an Ethernet driver invoked for each matching
1683 * Ethernet PCI device detected during the PCI probing phase.
1686 * The *eth_dev* pointer is the address of the *rte_eth_dev* structure
1687 * associated with the matching device and which have been [automatically]
1688 * allocated in the *rte_eth_devices* array.
1689 * The *eth_dev* structure is supplied to the driver initialization function
1690 * with the following fields already initialized:
1692 * - *pci_dev*: Holds the pointers to the *rte_pci_device* structure which
1693 * contains the generic PCI information of the matching device.
1695 * - *driver*: Holds the pointer to the *eth_driver* structure.
1697 * - *dev_private*: Holds a pointer to the device private data structure.
1699 * - *mtu*: Contains the default Ethernet maximum frame length (1500).
1701 * - *port_id*: Contains the port index of the device (actually the index
1702 * of the *eth_dev* structure in the *rte_eth_devices* array).
1705 * - 0: Success, the device is properly initialized by the driver.
1706 * In particular, the driver MUST have set up the *dev_ops* pointer
1707 * of the *eth_dev* structure.
1708 * - <0: Error code of the device initialization failure.
1710 typedef int (*eth_dev_init_t)(struct rte_eth_dev *eth_dev);
1714 * Finalization function of an Ethernet driver invoked for each matching
1715 * Ethernet PCI device detected during the PCI closing phase.
1718 * The *eth_dev* pointer is the address of the *rte_eth_dev* structure
1719 * associated with the matching device and which have been [automatically]
1720 * allocated in the *rte_eth_devices* array.
1722 * - 0: Success, the device is properly finalized by the driver.
1723 * In particular, the driver MUST free the *dev_ops* pointer
1724 * of the *eth_dev* structure.
1725 * - <0: Error code of the device initialization failure.
1727 typedef int (*eth_dev_uninit_t)(struct rte_eth_dev *eth_dev);
1731 * The structure associated with a PMD Ethernet driver.
1733 * Each Ethernet driver acts as a PCI driver and is represented by a generic
1734 * *eth_driver* structure that holds:
1736 * - An *rte_pci_driver* structure (which must be the first field).
1738 * - The *eth_dev_init* function invoked for each matching PCI device.
1740 * - The *eth_dev_uninit* function invoked for each matching PCI device.
1742 * - The size of the private data to allocate for each matching device.
1745 struct rte_pci_driver pci_drv; /**< The PMD is also a PCI driver. */
1746 eth_dev_init_t eth_dev_init; /**< Device init function. */
1747 eth_dev_uninit_t eth_dev_uninit; /**< Device uninit function. */
1748 unsigned int dev_private_size; /**< Size of device private data. */
1753 * A function invoked by the initialization function of an Ethernet driver
1754 * to simultaneously register itself as a PCI driver and as an Ethernet
1755 * Poll Mode Driver (PMD).
1758 * The pointer to the *eth_driver* structure associated with
1759 * the Ethernet driver.
1761 extern void rte_eth_driver_register(struct eth_driver *eth_drv);
1764 * Configure an Ethernet device.
1765 * This function must be invoked first before any other function in the
1766 * Ethernet API. This function can also be re-invoked when a device is in the
1770 * The port identifier of the Ethernet device to configure.
1771 * @param nb_rx_queue
1772 * The number of receive queues to set up for the Ethernet device.
1773 * @param nb_tx_queue
1774 * The number of transmit queues to set up for the Ethernet device.
1776 * The pointer to the configuration data to be used for the Ethernet device.
1777 * The *rte_eth_conf* structure includes:
1778 * - the hardware offload features to activate, with dedicated fields for
1779 * each statically configurable offload hardware feature provided by
1780 * Ethernet devices, such as IP checksum or VLAN tag stripping for
1782 * - the Receive Side Scaling (RSS) configuration when using multiple RX
1785 * Embedding all configuration information in a single data structure
1786 * is the more flexible method that allows the addition of new features
1787 * without changing the syntax of the API.
1789 * - 0: Success, device configured.
1790 * - <0: Error code returned by the driver configuration function.
1792 extern int rte_eth_dev_configure(uint8_t port_id,
1793 uint16_t nb_rx_queue,
1794 uint16_t nb_tx_queue,
1795 const struct rte_eth_conf *eth_conf);
1798 * Allocate and set up a receive queue for an Ethernet device.
1800 * The function allocates a contiguous block of memory for *nb_rx_desc*
1801 * receive descriptors from a memory zone associated with *socket_id*
1802 * and initializes each receive descriptor with a network buffer allocated
1803 * from the memory pool *mb_pool*.
1806 * The port identifier of the Ethernet device.
1807 * @param rx_queue_id
1808 * The index of the receive queue to set up.
1809 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
1810 * to rte_eth_dev_configure().
1812 * The number of receive descriptors to allocate for the receive ring.
1814 * The *socket_id* argument is the socket identifier in case of NUMA.
1815 * The value can be *SOCKET_ID_ANY* if there is no NUMA constraint for
1816 * the DMA memory allocated for the receive descriptors of the ring.
1818 * The pointer to the configuration data to be used for the receive queue.
1819 * NULL value is allowed, in which case default RX configuration
1821 * The *rx_conf* structure contains an *rx_thresh* structure with the values
1822 * of the Prefetch, Host, and Write-Back threshold registers of the receive
1825 * The pointer to the memory pool from which to allocate *rte_mbuf* network
1826 * memory buffers to populate each descriptor of the receive ring.
1828 * - 0: Success, receive queue correctly set up.
1829 * - -EINVAL: The size of network buffers which can be allocated from the
1830 * memory pool does not fit the various buffer sizes allowed by the
1831 * device controller.
1832 * - -ENOMEM: Unable to allocate the receive ring descriptors or to
1833 * allocate network memory buffers from the memory pool when
1834 * initializing receive descriptors.
1836 extern int rte_eth_rx_queue_setup(uint8_t port_id, uint16_t rx_queue_id,
1837 uint16_t nb_rx_desc, unsigned int socket_id,
1838 const struct rte_eth_rxconf *rx_conf,
1839 struct rte_mempool *mb_pool);
1842 * Allocate and set up a transmit queue for an Ethernet device.
1845 * The port identifier of the Ethernet device.
1846 * @param tx_queue_id
1847 * The index of the transmit queue to set up.
1848 * The value must be in the range [0, nb_tx_queue - 1] previously supplied
1849 * to rte_eth_dev_configure().
1851 * The number of transmit descriptors to allocate for the transmit ring.
1853 * The *socket_id* argument is the socket identifier in case of NUMA.
1854 * Its value can be *SOCKET_ID_ANY* if there is no NUMA constraint for
1855 * the DMA memory allocated for the transmit descriptors of the ring.
1857 * The pointer to the configuration data to be used for the transmit queue.
1858 * NULL value is allowed, in which case default RX configuration
1860 * The *tx_conf* structure contains the following data:
1861 * - The *tx_thresh* structure with the values of the Prefetch, Host, and
1862 * Write-Back threshold registers of the transmit ring.
1863 * When setting Write-Back threshold to the value greater then zero,
1864 * *tx_rs_thresh* value should be explicitly set to one.
1865 * - The *tx_free_thresh* value indicates the [minimum] number of network
1866 * buffers that must be pending in the transmit ring to trigger their
1867 * [implicit] freeing by the driver transmit function.
1868 * - The *tx_rs_thresh* value indicates the [minimum] number of transmit
1869 * descriptors that must be pending in the transmit ring before setting the
1870 * RS bit on a descriptor by the driver transmit function.
1871 * The *tx_rs_thresh* value should be less or equal then
1872 * *tx_free_thresh* value, and both of them should be less then
1874 * - The *txq_flags* member contains flags to pass to the TX queue setup
1875 * function to configure the behavior of the TX queue. This should be set
1876 * to 0 if no special configuration is required.
1878 * Note that setting *tx_free_thresh* or *tx_rs_thresh* value to 0 forces
1879 * the transmit function to use default values.
1881 * - 0: Success, the transmit queue is correctly set up.
1882 * - -ENOMEM: Unable to allocate the transmit ring descriptors.
1884 extern int rte_eth_tx_queue_setup(uint8_t port_id, uint16_t tx_queue_id,
1885 uint16_t nb_tx_desc, unsigned int socket_id,
1886 const struct rte_eth_txconf *tx_conf);
1889 * Return the NUMA socket to which an Ethernet device is connected
1892 * The port identifier of the Ethernet device
1894 * The NUMA socket id to which the Ethernet device is connected or
1895 * a default of zero if the socket could not be determined.
1896 * -1 is returned is the port_id value is out of range.
1898 extern int rte_eth_dev_socket_id(uint8_t port_id);
1901 * Check if port_id of device is attached
1904 * The port identifier of the Ethernet device
1906 * - 0 if port is out of range or not attached
1907 * - 1 if device is attached
1909 extern int rte_eth_dev_is_valid_port(uint8_t port_id);
1912 * Allocate mbuf from mempool, setup the DMA physical address
1913 * and then start RX for specified queue of a port. It is used
1914 * when rx_deferred_start flag of the specified queue is true.
1917 * The port identifier of the Ethernet device
1918 * @param rx_queue_id
1919 * The index of the rx queue to update the ring.
1920 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
1921 * to rte_eth_dev_configure().
1923 * - 0: Success, the transmit queue is correctly set up.
1924 * - -EINVAL: The port_id or the queue_id out of range.
1925 * - -ENOTSUP: The function not supported in PMD driver.
1927 extern int rte_eth_dev_rx_queue_start(uint8_t port_id, uint16_t rx_queue_id);
1930 * Stop specified RX queue of a port
1933 * The port identifier of the Ethernet device
1934 * @param rx_queue_id
1935 * The index of the rx queue to update the ring.
1936 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
1937 * to rte_eth_dev_configure().
1939 * - 0: Success, the transmit queue is correctly set up.
1940 * - -EINVAL: The port_id or the queue_id out of range.
1941 * - -ENOTSUP: The function not supported in PMD driver.
1943 extern int rte_eth_dev_rx_queue_stop(uint8_t port_id, uint16_t rx_queue_id);
1946 * Start TX for specified queue of a port. It is used when tx_deferred_start
1947 * flag of the specified queue is true.
1950 * The port identifier of the Ethernet device
1951 * @param tx_queue_id
1952 * The index of the tx queue to update the ring.
1953 * The value must be in the range [0, nb_tx_queue - 1] previously supplied
1954 * to rte_eth_dev_configure().
1956 * - 0: Success, the transmit queue is correctly set up.
1957 * - -EINVAL: The port_id or the queue_id out of range.
1958 * - -ENOTSUP: The function not supported in PMD driver.
1960 extern int rte_eth_dev_tx_queue_start(uint8_t port_id, uint16_t tx_queue_id);
1963 * Stop specified TX queue of a port
1966 * The port identifier of the Ethernet device
1967 * @param tx_queue_id
1968 * The index of the tx queue to update the ring.
1969 * The value must be in the range [0, nb_tx_queue - 1] previously supplied
1970 * to rte_eth_dev_configure().
1972 * - 0: Success, the transmit queue is correctly set up.
1973 * - -EINVAL: The port_id or the queue_id out of range.
1974 * - -ENOTSUP: The function not supported in PMD driver.
1976 extern int rte_eth_dev_tx_queue_stop(uint8_t port_id, uint16_t tx_queue_id);
1981 * Start an Ethernet device.
1983 * The device start step is the last one and consists of setting the configured
1984 * offload features and in starting the transmit and the receive units of the
1986 * On success, all basic functions exported by the Ethernet API (link status,
1987 * receive/transmit, and so on) can be invoked.
1990 * The port identifier of the Ethernet device.
1992 * - 0: Success, Ethernet device started.
1993 * - <0: Error code of the driver device start function.
1995 extern int rte_eth_dev_start(uint8_t port_id);
1998 * Stop an Ethernet device. The device can be restarted with a call to
1999 * rte_eth_dev_start()
2002 * The port identifier of the Ethernet device.
2004 extern void rte_eth_dev_stop(uint8_t port_id);
2008 * Link up an Ethernet device.
2010 * Set device link up will re-enable the device rx/tx
2011 * functionality after it is previously set device linked down.
2014 * The port identifier of the Ethernet device.
2016 * - 0: Success, Ethernet device linked up.
2017 * - <0: Error code of the driver device link up function.
2019 extern int rte_eth_dev_set_link_up(uint8_t port_id);
2022 * Link down an Ethernet device.
2023 * The device rx/tx functionality will be disabled if success,
2024 * and it can be re-enabled with a call to
2025 * rte_eth_dev_set_link_up()
2028 * The port identifier of the Ethernet device.
2030 extern int rte_eth_dev_set_link_down(uint8_t port_id);
2033 * Close a stopped Ethernet device. The device cannot be restarted!
2034 * The function frees all resources except for needed by the
2035 * closed state. To free these resources, call rte_eth_dev_detach().
2038 * The port identifier of the Ethernet device.
2040 extern void rte_eth_dev_close(uint8_t port_id);
2043 * Enable receipt in promiscuous mode for an Ethernet device.
2046 * The port identifier of the Ethernet device.
2048 extern void rte_eth_promiscuous_enable(uint8_t port_id);
2051 * Disable receipt in promiscuous mode for an Ethernet device.
2054 * The port identifier of the Ethernet device.
2056 extern void rte_eth_promiscuous_disable(uint8_t port_id);
2059 * Return the value of promiscuous mode for an Ethernet device.
2062 * The port identifier of the Ethernet device.
2064 * - (1) if promiscuous is enabled
2065 * - (0) if promiscuous is disabled.
2068 extern int rte_eth_promiscuous_get(uint8_t port_id);
2071 * Enable the receipt of any multicast frame by an Ethernet device.
2074 * The port identifier of the Ethernet device.
2076 extern void rte_eth_allmulticast_enable(uint8_t port_id);
2079 * Disable the receipt of all multicast frames by an Ethernet device.
2082 * The port identifier of the Ethernet device.
2084 extern void rte_eth_allmulticast_disable(uint8_t port_id);
2087 * Return the value of allmulticast mode for an Ethernet device.
2090 * The port identifier of the Ethernet device.
2092 * - (1) if allmulticast is enabled
2093 * - (0) if allmulticast is disabled.
2096 extern int rte_eth_allmulticast_get(uint8_t port_id);
2099 * Retrieve the status (ON/OFF), the speed (in Mbps) and the mode (HALF-DUPLEX
2100 * or FULL-DUPLEX) of the physical link of an Ethernet device. It might need
2101 * to wait up to 9 seconds in it.
2104 * The port identifier of the Ethernet device.
2106 * A pointer to an *rte_eth_link* structure to be filled with
2107 * the status, the speed and the mode of the Ethernet device link.
2109 extern void rte_eth_link_get(uint8_t port_id, struct rte_eth_link *link);
2112 * Retrieve the status (ON/OFF), the speed (in Mbps) and the mode (HALF-DUPLEX
2113 * or FULL-DUPLEX) of the physical link of an Ethernet device. It is a no-wait
2114 * version of rte_eth_link_get().
2117 * The port identifier of the Ethernet device.
2119 * A pointer to an *rte_eth_link* structure to be filled with
2120 * the status, the speed and the mode of the Ethernet device link.
2122 extern void rte_eth_link_get_nowait(uint8_t port_id,
2123 struct rte_eth_link *link);
2126 * Retrieve the general I/O statistics of an Ethernet device.
2129 * The port identifier of the Ethernet device.
2131 * A pointer to a structure of type *rte_eth_stats* to be filled with
2132 * the values of device counters for the following set of statistics:
2133 * - *ipackets* with the total of successfully received packets.
2134 * - *opackets* with the total of successfully transmitted packets.
2135 * - *ibytes* with the total of successfully received bytes.
2136 * - *obytes* with the total of successfully transmitted bytes.
2137 * - *ierrors* with the total of erroneous received packets.
2138 * - *oerrors* with the total of failed transmitted packets.
2140 * Zero if successful. Non-zero otherwise.
2142 extern int rte_eth_stats_get(uint8_t port_id, struct rte_eth_stats *stats);
2145 * Reset the general I/O statistics of an Ethernet device.
2148 * The port identifier of the Ethernet device.
2150 extern void rte_eth_stats_reset(uint8_t port_id);
2153 * Retrieve extended statistics of an Ethernet device.
2156 * The port identifier of the Ethernet device.
2158 * A pointer to a table of structure of type *rte_eth_xstats*
2159 * to be filled with device statistics names and values.
2160 * This parameter can be set to NULL if n is 0.
2162 * The size of the stats table, which should be large enough to store
2163 * all the statistics of the device.
2165 * - positive value lower or equal to n: success. The return value
2166 * is the number of entries filled in the stats table.
2167 * - positive value higher than n: error, the given statistics table
2168 * is too small. The return value corresponds to the size that should
2169 * be given to succeed. The entries in the table are not valid and
2170 * shall not be used by the caller.
2171 * - negative value on error (invalid port id)
2173 extern int rte_eth_xstats_get(uint8_t port_id,
2174 struct rte_eth_xstats *xstats, unsigned n);
2177 * Reset extended statistics of an Ethernet device.
2180 * The port identifier of the Ethernet device.
2182 extern void rte_eth_xstats_reset(uint8_t port_id);
2185 * Set a mapping for the specified transmit queue to the specified per-queue
2186 * statistics counter.
2189 * The port identifier of the Ethernet device.
2190 * @param tx_queue_id
2191 * The index of the transmit queue for which a queue stats mapping is required.
2192 * The value must be in the range [0, nb_tx_queue - 1] previously supplied
2193 * to rte_eth_dev_configure().
2195 * The per-queue packet statistics functionality number that the transmit
2196 * queue is to be assigned.
2197 * The value must be in the range [0, RTE_MAX_ETHPORT_QUEUE_STATS_MAPS - 1].
2199 * Zero if successful. Non-zero otherwise.
2201 extern int rte_eth_dev_set_tx_queue_stats_mapping(uint8_t port_id,
2202 uint16_t tx_queue_id,
2206 * Set a mapping for the specified receive queue to the specified per-queue
2207 * statistics counter.
2210 * The port identifier of the Ethernet device.
2211 * @param rx_queue_id
2212 * The index of the receive queue for which a queue stats mapping is required.
2213 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
2214 * to rte_eth_dev_configure().
2216 * The per-queue packet statistics functionality number that the receive
2217 * queue is to be assigned.
2218 * The value must be in the range [0, RTE_MAX_ETHPORT_QUEUE_STATS_MAPS - 1].
2220 * Zero if successful. Non-zero otherwise.
2222 extern int rte_eth_dev_set_rx_queue_stats_mapping(uint8_t port_id,
2223 uint16_t rx_queue_id,
2227 * Retrieve the Ethernet address of an Ethernet device.
2230 * The port identifier of the Ethernet device.
2232 * A pointer to a structure of type *ether_addr* to be filled with
2233 * the Ethernet address of the Ethernet device.
2235 extern void rte_eth_macaddr_get(uint8_t port_id, struct ether_addr *mac_addr);
2238 * Retrieve the contextual information of an Ethernet device.
2241 * The port identifier of the Ethernet device.
2243 * A pointer to a structure of type *rte_eth_dev_info* to be filled with
2244 * the contextual information of the Ethernet device.
2246 extern void rte_eth_dev_info_get(uint8_t port_id,
2247 struct rte_eth_dev_info *dev_info);
2250 * Retrieve the MTU of an Ethernet device.
2253 * The port identifier of the Ethernet device.
2255 * A pointer to a uint16_t where the retrieved MTU is to be stored.
2257 * - (0) if successful.
2258 * - (-ENODEV) if *port_id* invalid.
2260 extern int rte_eth_dev_get_mtu(uint8_t port_id, uint16_t *mtu);
2263 * Change the MTU of an Ethernet device.
2266 * The port identifier of the Ethernet device.
2268 * A uint16_t for the MTU to be applied.
2270 * - (0) if successful.
2271 * - (-ENOTSUP) if operation is not supported.
2272 * - (-ENODEV) if *port_id* invalid.
2273 * - (-EINVAL) if *mtu* invalid.
2275 extern int rte_eth_dev_set_mtu(uint8_t port_id, uint16_t mtu);
2278 * Enable/Disable hardware filtering by an Ethernet device of received
2279 * VLAN packets tagged with a given VLAN Tag Identifier.
2282 * The port identifier of the Ethernet device.
2284 * The VLAN Tag Identifier whose filtering must be enabled or disabled.
2286 * If > 0, enable VLAN filtering of VLAN packets tagged with *vlan_id*.
2287 * Otherwise, disable VLAN filtering of VLAN packets tagged with *vlan_id*.
2289 * - (0) if successful.
2290 * - (-ENOSUP) if hardware-assisted VLAN filtering not configured.
2291 * - (-ENODEV) if *port_id* invalid.
2292 * - (-ENOSYS) if VLAN filtering on *port_id* disabled.
2293 * - (-EINVAL) if *vlan_id* > 4095.
2295 extern int rte_eth_dev_vlan_filter(uint8_t port_id, uint16_t vlan_id , int on);
2298 * Enable/Disable hardware VLAN Strip by a rx queue of an Ethernet device.
2299 * 82599/X540/X550 can support VLAN stripping at the rx queue level
2302 * The port identifier of the Ethernet device.
2303 * @param rx_queue_id
2304 * The index of the receive queue for which a queue stats mapping is required.
2305 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
2306 * to rte_eth_dev_configure().
2308 * If 1, Enable VLAN Stripping of the receive queue of the Ethernet port.
2309 * If 0, Disable VLAN Stripping of the receive queue of the Ethernet port.
2311 * - (0) if successful.
2312 * - (-ENOSUP) if hardware-assisted VLAN stripping not configured.
2313 * - (-ENODEV) if *port_id* invalid.
2314 * - (-EINVAL) if *rx_queue_id* invalid.
2316 extern int rte_eth_dev_set_vlan_strip_on_queue(uint8_t port_id,
2317 uint16_t rx_queue_id, int on);
2320 * Set the Outer VLAN Ether Type by an Ethernet device, it can be inserted to
2321 * the VLAN Header. This is a register setup available on some Intel NIC, not
2322 * but all, please check the data sheet for availability.
2325 * The port identifier of the Ethernet device.
2327 * The Tag Protocol ID
2329 * - (0) if successful.
2330 * - (-ENOSUP) if hardware-assisted VLAN TPID setup is not supported.
2331 * - (-ENODEV) if *port_id* invalid.
2333 extern int rte_eth_dev_set_vlan_ether_type(uint8_t port_id, uint16_t tag_type);
2336 * Set VLAN offload configuration on an Ethernet device
2337 * Enable/Disable Extended VLAN by an Ethernet device, This is a register setup
2338 * available on some Intel NIC, not but all, please check the data sheet for
2340 * Enable/Disable VLAN Strip can be done on rx queue for certain NIC, but here
2341 * the configuration is applied on the port level.
2344 * The port identifier of the Ethernet device.
2345 * @param offload_mask
2346 * The VLAN Offload bit mask can be mixed use with "OR"
2347 * ETH_VLAN_STRIP_OFFLOAD
2348 * ETH_VLAN_FILTER_OFFLOAD
2349 * ETH_VLAN_EXTEND_OFFLOAD
2351 * - (0) if successful.
2352 * - (-ENOSUP) if hardware-assisted VLAN filtering not configured.
2353 * - (-ENODEV) if *port_id* invalid.
2355 extern int rte_eth_dev_set_vlan_offload(uint8_t port_id, int offload_mask);
2358 * Read VLAN Offload configuration from an Ethernet device
2361 * The port identifier of the Ethernet device.
2363 * - (>0) if successful. Bit mask to indicate
2364 * ETH_VLAN_STRIP_OFFLOAD
2365 * ETH_VLAN_FILTER_OFFLOAD
2366 * ETH_VLAN_EXTEND_OFFLOAD
2367 * - (-ENODEV) if *port_id* invalid.
2369 extern int rte_eth_dev_get_vlan_offload(uint8_t port_id);
2372 * Set port based TX VLAN insersion on or off.
2375 * The port identifier of the Ethernet device.
2377 * Port based TX VLAN identifier togeth with user priority.
2379 * Turn on or off the port based TX VLAN insertion.
2382 * - (0) if successful.
2383 * - negative if failed.
2385 extern int rte_eth_dev_set_vlan_pvid(uint8_t port_id, uint16_t pvid, int on);
2389 * Retrieve a burst of input packets from a receive queue of an Ethernet
2390 * device. The retrieved packets are stored in *rte_mbuf* structures whose
2391 * pointers are supplied in the *rx_pkts* array.
2393 * The rte_eth_rx_burst() function loops, parsing the RX ring of the
2394 * receive queue, up to *nb_pkts* packets, and for each completed RX
2395 * descriptor in the ring, it performs the following operations:
2397 * - Initialize the *rte_mbuf* data structure associated with the
2398 * RX descriptor according to the information provided by the NIC into
2399 * that RX descriptor.
2401 * - Store the *rte_mbuf* data structure into the next entry of the
2404 * - Replenish the RX descriptor with a new *rte_mbuf* buffer
2405 * allocated from the memory pool associated with the receive queue at
2406 * initialization time.
2408 * When retrieving an input packet that was scattered by the controller
2409 * into multiple receive descriptors, the rte_eth_rx_burst() function
2410 * appends the associated *rte_mbuf* buffers to the first buffer of the
2413 * The rte_eth_rx_burst() function returns the number of packets
2414 * actually retrieved, which is the number of *rte_mbuf* data structures
2415 * effectively supplied into the *rx_pkts* array.
2416 * A return value equal to *nb_pkts* indicates that the RX queue contained
2417 * at least *rx_pkts* packets, and this is likely to signify that other
2418 * received packets remain in the input queue. Applications implementing
2419 * a "retrieve as much received packets as possible" policy can check this
2420 * specific case and keep invoking the rte_eth_rx_burst() function until
2421 * a value less than *nb_pkts* is returned.
2423 * This receive method has the following advantages:
2425 * - It allows a run-to-completion network stack engine to retrieve and
2426 * to immediately process received packets in a fast burst-oriented
2427 * approach, avoiding the overhead of unnecessary intermediate packet
2428 * queue/dequeue operations.
2430 * - Conversely, it also allows an asynchronous-oriented processing
2431 * method to retrieve bursts of received packets and to immediately
2432 * queue them for further parallel processing by another logical core,
2433 * for instance. However, instead of having received packets being
2434 * individually queued by the driver, this approach allows the invoker
2435 * of the rte_eth_rx_burst() function to queue a burst of retrieved
2436 * packets at a time and therefore dramatically reduce the cost of
2437 * enqueue/dequeue operations per packet.
2439 * - It allows the rte_eth_rx_burst() function of the driver to take
2440 * advantage of burst-oriented hardware features (CPU cache,
2441 * prefetch instructions, and so on) to minimize the number of CPU
2442 * cycles per packet.
2444 * To summarize, the proposed receive API enables many
2445 * burst-oriented optimizations in both synchronous and asynchronous
2446 * packet processing environments with no overhead in both cases.
2448 * The rte_eth_rx_burst() function does not provide any error
2449 * notification to avoid the corresponding overhead. As a hint, the
2450 * upper-level application might check the status of the device link once
2451 * being systematically returned a 0 value for a given number of tries.
2454 * The port identifier of the Ethernet device.
2456 * The index of the receive queue from which to retrieve input packets.
2457 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
2458 * to rte_eth_dev_configure().
2460 * The address of an array of pointers to *rte_mbuf* structures that
2461 * must be large enough to store *nb_pkts* pointers in it.
2463 * The maximum number of packets to retrieve.
2465 * The number of packets actually retrieved, which is the number
2466 * of pointers to *rte_mbuf* structures effectively supplied to the
2469 #ifdef RTE_LIBRTE_ETHDEV_DEBUG
2470 extern uint16_t rte_eth_rx_burst(uint8_t port_id, uint16_t queue_id,
2471 struct rte_mbuf **rx_pkts, uint16_t nb_pkts);
2473 static inline uint16_t
2474 rte_eth_rx_burst(uint8_t port_id, uint16_t queue_id,
2475 struct rte_mbuf **rx_pkts, const uint16_t nb_pkts)
2477 struct rte_eth_dev *dev;
2479 dev = &rte_eth_devices[port_id];
2481 int16_t nb_rx = (*dev->rx_pkt_burst)(dev->data->rx_queues[queue_id],
2484 #ifdef RTE_ETHDEV_RXTX_CALLBACKS
2485 struct rte_eth_rxtx_callback *cb = dev->post_rx_burst_cbs[queue_id];
2487 if (unlikely(cb != NULL)) {
2489 nb_rx = cb->fn.rx(port_id, queue_id, rx_pkts, nb_rx,
2490 nb_pkts, cb->param);
2492 } while (cb != NULL);
2501 * Get the number of used descriptors in a specific queue
2504 * The port identifier of the Ethernet device.
2506 * The queue id on the specific port.
2508 * The number of used descriptors in the specific queue.
2510 #ifdef RTE_LIBRTE_ETHDEV_DEBUG
2511 extern uint32_t rte_eth_rx_queue_count(uint8_t port_id, uint16_t queue_id);
2513 static inline uint32_t
2514 rte_eth_rx_queue_count(uint8_t port_id, uint16_t queue_id)
2516 struct rte_eth_dev *dev;
2518 dev = &rte_eth_devices[port_id];
2519 return (*dev->dev_ops->rx_queue_count)(dev, queue_id);
2524 * Check if the DD bit of the specific RX descriptor in the queue has been set
2527 * The port identifier of the Ethernet device.
2529 * The queue id on the specific port.
2531 * The offset of the descriptor ID from tail.
2533 * - (1) if the specific DD bit is set.
2534 * - (0) if the specific DD bit is not set.
2535 * - (-ENODEV) if *port_id* invalid.
2537 #ifdef RTE_LIBRTE_ETHDEV_DEBUG
2538 extern int rte_eth_rx_descriptor_done(uint8_t port_id,
2543 rte_eth_rx_descriptor_done(uint8_t port_id, uint16_t queue_id, uint16_t offset)
2545 struct rte_eth_dev *dev;
2547 dev = &rte_eth_devices[port_id];
2548 return (*dev->dev_ops->rx_descriptor_done)( \
2549 dev->data->rx_queues[queue_id], offset);
2554 * Send a burst of output packets on a transmit queue of an Ethernet device.
2556 * The rte_eth_tx_burst() function is invoked to transmit output packets
2557 * on the output queue *queue_id* of the Ethernet device designated by its
2559 * The *nb_pkts* parameter is the number of packets to send which are
2560 * supplied in the *tx_pkts* array of *rte_mbuf* structures.
2561 * The rte_eth_tx_burst() function loops, sending *nb_pkts* packets,
2562 * up to the number of transmit descriptors available in the TX ring of the
2564 * For each packet to send, the rte_eth_tx_burst() function performs
2565 * the following operations:
2567 * - Pick up the next available descriptor in the transmit ring.
2569 * - Free the network buffer previously sent with that descriptor, if any.
2571 * - Initialize the transmit descriptor with the information provided
2572 * in the *rte_mbuf data structure.
2574 * In the case of a segmented packet composed of a list of *rte_mbuf* buffers,
2575 * the rte_eth_tx_burst() function uses several transmit descriptors
2578 * The rte_eth_tx_burst() function returns the number of packets it
2579 * actually sent. A return value equal to *nb_pkts* means that all packets
2580 * have been sent, and this is likely to signify that other output packets
2581 * could be immediately transmitted again. Applications that implement a
2582 * "send as many packets to transmit as possible" policy can check this
2583 * specific case and keep invoking the rte_eth_tx_burst() function until
2584 * a value less than *nb_pkts* is returned.
2586 * It is the responsibility of the rte_eth_tx_burst() function to
2587 * transparently free the memory buffers of packets previously sent.
2588 * This feature is driven by the *tx_free_thresh* value supplied to the
2589 * rte_eth_dev_configure() function at device configuration time.
2590 * When the number of free TX descriptors drops below this threshold, the
2591 * rte_eth_tx_burst() function must [attempt to] free the *rte_mbuf* buffers
2592 * of those packets whose transmission was effectively completed.
2595 * The port identifier of the Ethernet device.
2597 * The index of the transmit queue through which output packets must be
2599 * The value must be in the range [0, nb_tx_queue - 1] previously supplied
2600 * to rte_eth_dev_configure().
2602 * The address of an array of *nb_pkts* pointers to *rte_mbuf* structures
2603 * which contain the output packets.
2605 * The maximum number of packets to transmit.
2607 * The number of output packets actually stored in transmit descriptors of
2608 * the transmit ring. The return value can be less than the value of the
2609 * *tx_pkts* parameter when the transmit ring is full or has been filled up.
2611 #ifdef RTE_LIBRTE_ETHDEV_DEBUG
2612 extern uint16_t rte_eth_tx_burst(uint8_t port_id, uint16_t queue_id,
2613 struct rte_mbuf **tx_pkts, uint16_t nb_pkts);
2615 static inline uint16_t
2616 rte_eth_tx_burst(uint8_t port_id, uint16_t queue_id,
2617 struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
2619 struct rte_eth_dev *dev;
2621 dev = &rte_eth_devices[port_id];
2623 #ifdef RTE_ETHDEV_RXTX_CALLBACKS
2624 struct rte_eth_rxtx_callback *cb = dev->pre_tx_burst_cbs[queue_id];
2626 if (unlikely(cb != NULL)) {
2628 nb_pkts = cb->fn.tx(port_id, queue_id, tx_pkts, nb_pkts,
2631 } while (cb != NULL);
2635 return (*dev->tx_pkt_burst)(dev->data->tx_queues[queue_id], tx_pkts, nb_pkts);
2640 * The eth device event type for interrupt, and maybe others in the future.
2642 enum rte_eth_event_type {
2643 RTE_ETH_EVENT_UNKNOWN, /**< unknown event type */
2644 RTE_ETH_EVENT_INTR_LSC, /**< lsc interrupt event */
2645 RTE_ETH_EVENT_MAX /**< max value of this enum */
2648 typedef void (*rte_eth_dev_cb_fn)(uint8_t port_id, \
2649 enum rte_eth_event_type event, void *cb_arg);
2650 /**< user application callback to be registered for interrupts */
2655 * Register a callback function for specific port id.
2662 * User supplied callback function to be called.
2664 * Pointer to the parameters for the registered callback.
2667 * - On success, zero.
2668 * - On failure, a negative value.
2670 int rte_eth_dev_callback_register(uint8_t port_id,
2671 enum rte_eth_event_type event,
2672 rte_eth_dev_cb_fn cb_fn, void *cb_arg);
2675 * Unregister a callback function for specific port id.
2682 * User supplied callback function to be called.
2684 * Pointer to the parameters for the registered callback. -1 means to
2685 * remove all for the same callback address and same event.
2688 * - On success, zero.
2689 * - On failure, a negative value.
2691 int rte_eth_dev_callback_unregister(uint8_t port_id,
2692 enum rte_eth_event_type event,
2693 rte_eth_dev_cb_fn cb_fn, void *cb_arg);
2696 * @internal Executes all the user application registered callbacks for
2697 * the specific device. It is for DPDK internal user only. User
2698 * application should not call it directly.
2701 * Pointer to struct rte_eth_dev.
2703 * Eth device interrupt event type.
2708 void _rte_eth_dev_callback_process(struct rte_eth_dev *dev,
2709 enum rte_eth_event_type event);
2712 * When there is no rx packet coming in Rx Queue for a long time, we can
2713 * sleep lcore related to RX Queue for power saving, and enable rx interrupt
2714 * to be triggered when rx packect arrives.
2716 * The rte_eth_dev_rx_intr_enable() function enables rx queue
2717 * interrupt on specific rx queue of a port.
2720 * The port identifier of the Ethernet device.
2722 * The index of the receive queue from which to retrieve input packets.
2723 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
2724 * to rte_eth_dev_configure().
2726 * - (0) if successful.
2727 * - (-ENOTSUP) if underlying hardware OR driver doesn't support
2729 * - (-ENODEV) if *port_id* invalid.
2731 int rte_eth_dev_rx_intr_enable(uint8_t port_id, uint16_t queue_id);
2734 * When lcore wakes up from rx interrupt indicating packet coming, disable rx
2735 * interrupt and returns to polling mode.
2737 * The rte_eth_dev_rx_intr_disable() function disables rx queue
2738 * interrupt on specific rx queue of a port.
2741 * The port identifier of the Ethernet device.
2743 * The index of the receive queue from which to retrieve input packets.
2744 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
2745 * to rte_eth_dev_configure().
2747 * - (0) if successful.
2748 * - (-ENOTSUP) if underlying hardware OR driver doesn't support
2750 * - (-ENODEV) if *port_id* invalid.
2752 int rte_eth_dev_rx_intr_disable(uint8_t port_id, uint16_t queue_id);
2755 * RX Interrupt control per port.
2758 * The port identifier of the Ethernet device.
2760 * Epoll instance fd which the intr vector associated to.
2761 * Using RTE_EPOLL_PER_THREAD allows to use per thread epoll instance.
2763 * The operation be performed for the vector.
2764 * Operation type of {RTE_INTR_EVENT_ADD, RTE_INTR_EVENT_DEL}.
2768 * - On success, zero.
2769 * - On failure, a negative value.
2771 int rte_eth_dev_rx_intr_ctl(uint8_t port_id, int epfd, int op, void *data);
2774 * RX Interrupt control per queue.
2777 * The port identifier of the Ethernet device.
2779 * The index of the receive queue from which to retrieve input packets.
2780 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
2781 * to rte_eth_dev_configure().
2783 * Epoll instance fd which the intr vector associated to.
2784 * Using RTE_EPOLL_PER_THREAD allows to use per thread epoll instance.
2786 * The operation be performed for the vector.
2787 * Operation type of {RTE_INTR_EVENT_ADD, RTE_INTR_EVENT_DEL}.
2791 * - On success, zero.
2792 * - On failure, a negative value.
2794 int rte_eth_dev_rx_intr_ctl_q(uint8_t port_id, uint16_t queue_id,
2795 int epfd, int op, void *data);
2798 * Turn on the LED on the Ethernet device.
2799 * This function turns on the LED on the Ethernet device.
2802 * The port identifier of the Ethernet device.
2804 * - (0) if successful.
2805 * - (-ENOTSUP) if underlying hardware OR driver doesn't support
2807 * - (-ENODEV) if *port_id* invalid.
2809 int rte_eth_led_on(uint8_t port_id);
2812 * Turn off the LED on the Ethernet device.
2813 * This function turns off the LED on the Ethernet device.
2816 * The port identifier of the Ethernet device.
2818 * - (0) if successful.
2819 * - (-ENOTSUP) if underlying hardware OR driver doesn't support
2821 * - (-ENODEV) if *port_id* invalid.
2823 int rte_eth_led_off(uint8_t port_id);
2826 * Get current status of the Ethernet link flow control for Ethernet device
2829 * The port identifier of the Ethernet device.
2831 * The pointer to the structure where to store the flow control parameters.
2833 * - (0) if successful.
2834 * - (-ENOTSUP) if hardware doesn't support flow control.
2835 * - (-ENODEV) if *port_id* invalid.
2837 int rte_eth_dev_flow_ctrl_get(uint8_t port_id,
2838 struct rte_eth_fc_conf *fc_conf);
2841 * Configure the Ethernet link flow control for Ethernet device
2844 * The port identifier of the Ethernet device.
2846 * The pointer to the structure of the flow control parameters.
2848 * - (0) if successful.
2849 * - (-ENOTSUP) if hardware doesn't support flow control mode.
2850 * - (-ENODEV) if *port_id* invalid.
2851 * - (-EINVAL) if bad parameter
2852 * - (-EIO) if flow control setup failure
2854 int rte_eth_dev_flow_ctrl_set(uint8_t port_id,
2855 struct rte_eth_fc_conf *fc_conf);
2858 * Configure the Ethernet priority flow control under DCB environment
2859 * for Ethernet device.
2862 * The port identifier of the Ethernet device.
2864 * The pointer to the structure of the priority flow control parameters.
2866 * - (0) if successful.
2867 * - (-ENOTSUP) if hardware doesn't support priority flow control mode.
2868 * - (-ENODEV) if *port_id* invalid.
2869 * - (-EINVAL) if bad parameter
2870 * - (-EIO) if flow control setup failure
2872 int rte_eth_dev_priority_flow_ctrl_set(uint8_t port_id,
2873 struct rte_eth_pfc_conf *pfc_conf);
2876 * Add a MAC address to an internal array of addresses used to enable whitelist
2877 * filtering to accept packets only if the destination MAC address matches.
2880 * The port identifier of the Ethernet device.
2882 * The MAC address to add.
2884 * VMDq pool index to associate address with (if VMDq is enabled). If VMDq is
2885 * not enabled, this should be set to 0.
2887 * - (0) if successfully added or *mac_addr" was already added.
2888 * - (-ENOTSUP) if hardware doesn't support this feature.
2889 * - (-ENODEV) if *port* is invalid.
2890 * - (-ENOSPC) if no more MAC addresses can be added.
2891 * - (-EINVAL) if MAC address is invalid.
2893 int rte_eth_dev_mac_addr_add(uint8_t port, struct ether_addr *mac_addr,
2897 * Remove a MAC address from the internal array of addresses.
2900 * The port identifier of the Ethernet device.
2902 * MAC address to remove.
2904 * - (0) if successful, or *mac_addr* didn't exist.
2905 * - (-ENOTSUP) if hardware doesn't support.
2906 * - (-ENODEV) if *port* invalid.
2907 * - (-EADDRINUSE) if attempting to remove the default MAC address
2909 int rte_eth_dev_mac_addr_remove(uint8_t port, struct ether_addr *mac_addr);
2912 * Set the default MAC address.
2915 * The port identifier of the Ethernet device.
2917 * New default MAC address.
2919 * - (0) if successful, or *mac_addr* didn't exist.
2920 * - (-ENOTSUP) if hardware doesn't support.
2921 * - (-ENODEV) if *port* invalid.
2922 * - (-EINVAL) if MAC address is invalid.
2924 int rte_eth_dev_default_mac_addr_set(uint8_t port, struct ether_addr *mac_addr);
2928 * Update Redirection Table(RETA) of Receive Side Scaling of Ethernet device.
2931 * The port identifier of the Ethernet device.
2935 * Redirection table size. The table size can be queried by
2936 * rte_eth_dev_info_get().
2938 * - (0) if successful.
2939 * - (-ENOTSUP) if hardware doesn't support.
2940 * - (-EINVAL) if bad parameter.
2942 int rte_eth_dev_rss_reta_update(uint8_t port,
2943 struct rte_eth_rss_reta_entry64 *reta_conf,
2944 uint16_t reta_size);
2947 * Query Redirection Table(RETA) of Receive Side Scaling of Ethernet device.
2950 * The port identifier of the Ethernet device.
2954 * Redirection table size. The table size can be queried by
2955 * rte_eth_dev_info_get().
2957 * - (0) if successful.
2958 * - (-ENOTSUP) if hardware doesn't support.
2959 * - (-EINVAL) if bad parameter.
2961 int rte_eth_dev_rss_reta_query(uint8_t port,
2962 struct rte_eth_rss_reta_entry64 *reta_conf,
2963 uint16_t reta_size);
2966 * Updates unicast hash table for receiving packet with the given destination
2967 * MAC address, and the packet is routed to all VFs for which the RX mode is
2968 * accept packets that match the unicast hash table.
2971 * The port identifier of the Ethernet device.
2973 * Unicast MAC address.
2975 * 1 - Set an unicast hash bit for receiving packets with the MAC address.
2976 * 0 - Clear an unicast hash bit.
2978 * - (0) if successful.
2979 * - (-ENOTSUP) if hardware doesn't support.
2980 * - (-ENODEV) if *port_id* invalid.
2981 * - (-EINVAL) if bad parameter.
2983 int rte_eth_dev_uc_hash_table_set(uint8_t port,struct ether_addr *addr,
2987 * Updates all unicast hash bitmaps for receiving packet with any Unicast
2988 * Ethernet MAC addresses,the packet is routed to all VFs for which the RX
2989 * mode is accept packets that match the unicast hash table.
2992 * The port identifier of the Ethernet device.
2994 * 1 - Set all unicast hash bitmaps for receiving all the Ethernet
2996 * 0 - Clear all unicast hash bitmaps
2998 * - (0) if successful.
2999 * - (-ENOTSUP) if hardware doesn't support.
3000 * - (-ENODEV) if *port_id* invalid.
3001 * - (-EINVAL) if bad parameter.
3003 int rte_eth_dev_uc_all_hash_table_set(uint8_t port,uint8_t on);
3006 * Set RX L2 Filtering mode of a VF of an Ethernet device.
3009 * The port identifier of the Ethernet device.
3013 * The RX mode mask, which is one or more of accepting Untagged Packets,
3014 * packets that match the PFUTA table, Broadcast and Multicast Promiscuous.
3015 * ETH_VMDQ_ACCEPT_UNTAG,ETH_VMDQ_ACCEPT_HASH_UC,
3016 * ETH_VMDQ_ACCEPT_BROADCAST and ETH_VMDQ_ACCEPT_MULTICAST will be used
3019 * 1 - Enable a VF RX mode.
3020 * 0 - Disable a VF RX mode.
3022 * - (0) if successful.
3023 * - (-ENOTSUP) if hardware doesn't support.
3024 * - (-ENOTSUP) if hardware doesn't support.
3025 * - (-EINVAL) if bad parameter.
3027 int rte_eth_dev_set_vf_rxmode(uint8_t port, uint16_t vf, uint16_t rx_mode,
3031 * Enable or disable a VF traffic transmit of the Ethernet device.
3034 * The port identifier of the Ethernet device.
3038 * 1 - Enable a VF traffic transmit.
3039 * 0 - Disable a VF traffic transmit.
3041 * - (0) if successful.
3042 * - (-ENODEV) if *port_id* invalid.
3043 * - (-ENOTSUP) if hardware doesn't support.
3044 * - (-EINVAL) if bad parameter.
3047 rte_eth_dev_set_vf_tx(uint8_t port,uint16_t vf, uint8_t on);
3050 * Enable or disable a VF traffic receive of an Ethernet device.
3053 * The port identifier of the Ethernet device.
3057 * 1 - Enable a VF traffic receive.
3058 * 0 - Disable a VF traffic receive.
3060 * - (0) if successful.
3061 * - (-ENOTSUP) if hardware doesn't support.
3062 * - (-ENODEV) if *port_id* invalid.
3063 * - (-EINVAL) if bad parameter.
3066 rte_eth_dev_set_vf_rx(uint8_t port,uint16_t vf, uint8_t on);
3069 * Enable/Disable hardware VF VLAN filtering by an Ethernet device of
3070 * received VLAN packets tagged with a given VLAN Tag Identifier.
3073 * The port identifier of the Ethernet device.
3075 * The VLAN Tag Identifier whose filtering must be enabled or disabled.
3077 * Bitmap listing which VFs participate in the VLAN filtering.
3079 * 1 - Enable VFs VLAN filtering.
3080 * 0 - Disable VFs VLAN filtering.
3082 * - (0) if successful.
3083 * - (-ENOTSUP) if hardware doesn't support.
3084 * - (-ENODEV) if *port_id* invalid.
3085 * - (-EINVAL) if bad parameter.
3088 rte_eth_dev_set_vf_vlan_filter(uint8_t port, uint16_t vlan_id,
3093 * Set a traffic mirroring rule on an Ethernet device
3096 * The port identifier of the Ethernet device.
3097 * @param mirror_conf
3098 * The pointer to the traffic mirroring structure describing the mirroring rule.
3099 * The *rte_eth_vm_mirror_conf* structure includes the type of mirroring rule,
3100 * destination pool and the value of rule if enable vlan or pool mirroring.
3103 * The index of traffic mirroring rule, we support four separated rules.
3105 * 1 - Enable a mirroring rule.
3106 * 0 - Disable a mirroring rule.
3108 * - (0) if successful.
3109 * - (-ENOTSUP) if hardware doesn't support this feature.
3110 * - (-ENODEV) if *port_id* invalid.
3111 * - (-EINVAL) if the mr_conf information is not correct.
3113 int rte_eth_mirror_rule_set(uint8_t port_id,
3114 struct rte_eth_mirror_conf *mirror_conf,
3119 * Reset a traffic mirroring rule on an Ethernet device.
3122 * The port identifier of the Ethernet device.
3124 * The index of traffic mirroring rule, we support four separated rules.
3126 * - (0) if successful.
3127 * - (-ENOTSUP) if hardware doesn't support this feature.
3128 * - (-ENODEV) if *port_id* invalid.
3129 * - (-EINVAL) if bad parameter.
3131 int rte_eth_mirror_rule_reset(uint8_t port_id,
3135 * Set the rate limitation for a queue on an Ethernet device.
3138 * The port identifier of the Ethernet device.
3142 * The tx rate in Mbps. Allocated from the total port link speed.
3144 * - (0) if successful.
3145 * - (-ENOTSUP) if hardware doesn't support this feature.
3146 * - (-ENODEV) if *port_id* invalid.
3147 * - (-EINVAL) if bad parameter.
3149 int rte_eth_set_queue_rate_limit(uint8_t port_id, uint16_t queue_idx,
3153 * Set the rate limitation for a vf on an Ethernet device.
3156 * The port identifier of the Ethernet device.
3160 * The tx rate allocated from the total link speed for this VF id.
3162 * The queue mask which need to set the rate.
3164 * - (0) if successful.
3165 * - (-ENOTSUP) if hardware doesn't support this feature.
3166 * - (-ENODEV) if *port_id* invalid.
3167 * - (-EINVAL) if bad parameter.
3169 int rte_eth_set_vf_rate_limit(uint8_t port_id, uint16_t vf,
3170 uint16_t tx_rate, uint64_t q_msk);
3173 * Initialize bypass logic. This function needs to be called before
3174 * executing any other bypass API.
3177 * The port identifier of the Ethernet device.
3179 * - (0) if successful.
3180 * - (-ENOTSUP) if hardware doesn't support.
3181 * - (-EINVAL) if bad parameter.
3183 int rte_eth_dev_bypass_init(uint8_t port);
3186 * Return bypass state.
3189 * The port identifier of the Ethernet device.
3191 * The return bypass state.
3194 * - (3) Isolate mode
3196 * - (0) if successful.
3197 * - (-ENOTSUP) if hardware doesn't support.
3198 * - (-EINVAL) if bad parameter.
3200 int rte_eth_dev_bypass_state_show(uint8_t port, uint32_t *state);
3206 * The port identifier of the Ethernet device.
3208 * The current bypass state.
3211 * - (3) Isolate mode
3213 * - (0) if successful.
3214 * - (-ENOTSUP) if hardware doesn't support.
3215 * - (-EINVAL) if bad parameter.
3217 int rte_eth_dev_bypass_state_set(uint8_t port, uint32_t *new_state);
3220 * Return bypass state when given event occurs.
3223 * The port identifier of the Ethernet device.
3226 * - (1) Main power on (power button is pushed)
3227 * - (2) Auxiliary power on (power supply is being plugged)
3228 * - (3) Main power off (system shutdown and power supply is left plugged in)
3229 * - (4) Auxiliary power off (power supply is being unplugged)
3230 * - (5) Display or set the watchdog timer
3232 * The bypass state when given event occurred.
3235 * - (3) Isolate mode
3237 * - (0) if successful.
3238 * - (-ENOTSUP) if hardware doesn't support.
3239 * - (-EINVAL) if bad parameter.
3241 int rte_eth_dev_bypass_event_show(uint8_t port, uint32_t event, uint32_t *state);
3244 * Set bypass state when given event occurs.
3247 * The port identifier of the Ethernet device.
3250 * - (1) Main power on (power button is pushed)
3251 * - (2) Auxiliary power on (power supply is being plugged)
3252 * - (3) Main power off (system shutdown and power supply is left plugged in)
3253 * - (4) Auxiliary power off (power supply is being unplugged)
3254 * - (5) Display or set the watchdog timer
3256 * The assigned state when given event occurs.
3259 * - (3) Isolate mode
3261 * - (0) if successful.
3262 * - (-ENOTSUP) if hardware doesn't support.
3263 * - (-EINVAL) if bad parameter.
3265 int rte_eth_dev_bypass_event_store(uint8_t port, uint32_t event, uint32_t state);
3268 * Set bypass watchdog timeout count.
3271 * The port identifier of the Ethernet device.
3273 * The timeout to be set.
3274 * - (0) 0 seconds (timer is off)
3283 * - (0) if successful.
3284 * - (-ENOTSUP) if hardware doesn't support.
3285 * - (-EINVAL) if bad parameter.
3287 int rte_eth_dev_wd_timeout_store(uint8_t port, uint32_t timeout);
3290 * Get bypass firmware version.
3293 * The port identifier of the Ethernet device.
3295 * The firmware version
3297 * - (0) if successful.
3298 * - (-ENOTSUP) if hardware doesn't support.
3299 * - (-EINVAL) if bad parameter.
3301 int rte_eth_dev_bypass_ver_show(uint8_t port, uint32_t *ver);
3304 * Return bypass watchdog timeout in seconds
3307 * The port identifier of the Ethernet device.
3309 * The return watchdog timeout. "0" represents timer expired
3310 * - (0) 0 seconds (timer is off)
3319 * - (0) if successful.
3320 * - (-ENOTSUP) if hardware doesn't support.
3321 * - (-EINVAL) if bad parameter.
3323 int rte_eth_dev_bypass_wd_timeout_show(uint8_t port, uint32_t *wd_timeout);
3326 * Reset bypass watchdog timer
3329 * The port identifier of the Ethernet device.
3331 * - (0) if successful.
3332 * - (-ENOTSUP) if hardware doesn't support.
3333 * - (-EINVAL) if bad parameter.
3335 int rte_eth_dev_bypass_wd_reset(uint8_t port);
3338 * Configuration of Receive Side Scaling hash computation of Ethernet device.
3341 * The port identifier of the Ethernet device.
3343 * The new configuration to use for RSS hash computation on the port.
3345 * - (0) if successful.
3346 * - (-ENODEV) if port identifier is invalid.
3347 * - (-ENOTSUP) if hardware doesn't support.
3348 * - (-EINVAL) if bad parameter.
3350 int rte_eth_dev_rss_hash_update(uint8_t port_id,
3351 struct rte_eth_rss_conf *rss_conf);
3354 * Retrieve current configuration of Receive Side Scaling hash computation
3355 * of Ethernet device.
3358 * The port identifier of the Ethernet device.
3360 * Where to store the current RSS hash configuration of the Ethernet device.
3362 * - (0) if successful.
3363 * - (-ENODEV) if port identifier is invalid.
3364 * - (-ENOTSUP) if hardware doesn't support RSS.
3367 rte_eth_dev_rss_hash_conf_get(uint8_t port_id,
3368 struct rte_eth_rss_conf *rss_conf);
3371 * Add UDP tunneling port of an Ethernet device for filtering a specific
3372 * tunneling packet by UDP port number.
3375 * The port identifier of the Ethernet device.
3377 * UDP tunneling configuration.
3380 * - (0) if successful.
3381 * - (-ENODEV) if port identifier is invalid.
3382 * - (-ENOTSUP) if hardware doesn't support tunnel type.
3385 rte_eth_dev_udp_tunnel_add(uint8_t port_id,
3386 struct rte_eth_udp_tunnel *tunnel_udp);
3389 * Detete UDP tunneling port configuration of Ethernet device
3392 * The port identifier of the Ethernet device.
3394 * UDP tunneling configuration.
3397 * - (0) if successful.
3398 * - (-ENODEV) if port identifier is invalid.
3399 * - (-ENOTSUP) if hardware doesn't support tunnel type.
3402 rte_eth_dev_udp_tunnel_delete(uint8_t port_id,
3403 struct rte_eth_udp_tunnel *tunnel_udp);
3406 * Check whether the filter type is supported on an Ethernet device.
3407 * All the supported filter types are defined in 'rte_eth_ctrl.h'.
3410 * The port identifier of the Ethernet device.
3411 * @param filter_type
3414 * - (0) if successful.
3415 * - (-ENOTSUP) if hardware doesn't support this filter type.
3416 * - (-ENODEV) if *port_id* invalid.
3418 int rte_eth_dev_filter_supported(uint8_t port_id, enum rte_filter_type filter_type);
3421 * Take operations to assigned filter type on an Ethernet device.
3422 * All the supported operations and filter types are defined in 'rte_eth_ctrl.h'.
3425 * The port identifier of the Ethernet device.
3426 * @param filter_type
3429 * Type of operation.
3431 * A pointer to arguments defined specifically for the operation.
3433 * - (0) if successful.
3434 * - (-ENOTSUP) if hardware doesn't support.
3435 * - (-ENODEV) if *port_id* invalid.
3436 * - others depends on the specific operations implementation.
3438 int rte_eth_dev_filter_ctrl(uint8_t port_id, enum rte_filter_type filter_type,
3439 enum rte_filter_op filter_op, void *arg);
3442 * Get DCB information on an Ethernet device.
3445 * The port identifier of the Ethernet device.
3449 * - (0) if successful.
3450 * - (-ENODEV) if port identifier is invalid.
3451 * - (-ENOTSUP) if hardware doesn't support.
3453 int rte_eth_dev_get_dcb_info(uint8_t port_id,
3454 struct rte_eth_dcb_info *dcb_info);
3457 * Add a callback to be called on packet RX on a given port and queue.
3459 * This API configures a function to be called for each burst of
3460 * packets received 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_rx_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_rx_callback(uint8_t port_id, uint16_t queue_id,
3481 rte_rx_callback_fn fn, void *user_param);
3484 * Add a callback to be called on packet TX on a given port and queue.
3486 * This API configures a function to be called for each burst of
3487 * packets sent on a given NIC port queue. The return value is a pointer
3488 * that can be used to later remove the callback using
3489 * rte_eth_remove_tx_callback().
3491 * Multiple functions are called in the order that they are added.
3494 * The port identifier of the Ethernet device.
3496 * The queue on the Ethernet device on which the callback is to be added.
3498 * The callback function
3500 * A generic pointer parameter which will be passed to each invocation of the
3501 * callback function on this port and queue.
3505 * On success, a pointer value which can later be used to remove the callback.
3507 void *rte_eth_add_tx_callback(uint8_t port_id, uint16_t queue_id,
3508 rte_tx_callback_fn fn, void *user_param);
3511 * Remove an RX packet callback from a given port and queue.
3513 * This function is used to removed callbacks that were added to a NIC port
3514 * queue using rte_eth_add_rx_callback().
3516 * Note: the callback is removed from the callback list but it isn't freed
3517 * since the it may still be in use. The memory for the callback can be
3518 * subsequently freed back by the application by calling rte_free():
3520 * - Immediately - if the port is stopped, or the user knows that no
3521 * callbacks are in flight e.g. if called from the thread doing RX/TX
3524 * - After a short delay - where the delay is sufficient to allow any
3525 * in-flight callbacks to complete.
3528 * The port identifier of the Ethernet device.
3530 * The queue on the Ethernet device from which the callback is to be removed.
3532 * User supplied callback created via rte_eth_add_rx_callback().
3535 * - 0: Success. Callback was removed.
3536 * - -ENOTSUP: Callback support is not available.
3537 * - -EINVAL: The port_id or the queue_id is out of range, or the callback
3538 * is NULL or not found for the port/queue.
3540 int rte_eth_remove_rx_callback(uint8_t port_id, uint16_t queue_id,
3541 struct rte_eth_rxtx_callback *user_cb);
3544 * Remove a TX packet callback from a given port and queue.
3546 * This function is used to removed callbacks that were added to a NIC port
3547 * queue using rte_eth_add_tx_callback().
3549 * Note: the callback is removed from the callback list but it isn't freed
3550 * since the it may still be in use. The memory for the callback can be
3551 * subsequently freed back by the application by calling rte_free():
3553 * - Immediately - if the port is stopped, or the user knows that no
3554 * callbacks are in flight e.g. if called from the thread doing RX/TX
3557 * - After a short delay - where the delay is sufficient to allow any
3558 * in-flight callbacks to complete.
3561 * The port identifier of the Ethernet device.
3563 * The queue on the Ethernet device from which the callback is to be removed.
3565 * User supplied callback created via rte_eth_add_tx_callback().
3568 * - 0: Success. Callback was removed.
3569 * - -ENOTSUP: Callback support is not available.
3570 * - -EINVAL: The port_id or the queue_id is out of range, or the callback
3571 * is NULL or not found for the port/queue.
3573 int rte_eth_remove_tx_callback(uint8_t port_id, uint16_t queue_id,
3574 struct rte_eth_rxtx_callback *user_cb);
3577 * Retrieve information about given port's RX queue.
3580 * The port identifier of the Ethernet device.
3582 * The RX queue on the Ethernet device for which information
3583 * will be retrieved.
3585 * A pointer to a structure of type *rte_eth_rxq_info_info* to be filled with
3586 * the information of the Ethernet device.
3590 * - -ENOTSUP: routine is not supported by the device PMD.
3591 * - -EINVAL: The port_id or the queue_id is out of range.
3593 int rte_eth_rx_queue_info_get(uint8_t port_id, uint16_t queue_id,
3594 struct rte_eth_rxq_info *qinfo);
3597 * Retrieve information about given port's TX queue.
3600 * The port identifier of the Ethernet device.
3602 * The TX queue on the Ethernet device for which information
3603 * will be retrieved.
3605 * A pointer to a structure of type *rte_eth_txq_info_info* to be filled with
3606 * the information of the Ethernet device.
3610 * - -ENOTSUP: routine is not supported by the device PMD.
3611 * - -EINVAL: The port_id or the queue_id is out of range.
3613 int rte_eth_tx_queue_info_get(uint8_t port_id, uint16_t queue_id,
3614 struct rte_eth_txq_info *qinfo);
3617 * Retrieve number of available registers for access
3620 * The port identifier of the Ethernet device.
3622 * - (>=0) number of registers if successful.
3623 * - (-ENOTSUP) if hardware doesn't support.
3624 * - (-ENODEV) if *port_id* invalid.
3625 * - others depends on the specific operations implementation.
3627 int rte_eth_dev_get_reg_length(uint8_t port_id);
3630 * Retrieve device registers and register attributes
3633 * The port identifier of the Ethernet device.
3635 * The template includes buffer for register data and attribute to be filled.
3637 * - (0) if successful.
3638 * - (-ENOTSUP) if hardware doesn't support.
3639 * - (-ENODEV) if *port_id* invalid.
3640 * - others depends on the specific operations implementation.
3642 int rte_eth_dev_get_reg_info(uint8_t port_id, struct rte_dev_reg_info *info);
3645 * Retrieve size of device EEPROM
3648 * The port identifier of the Ethernet device.
3650 * - (>=0) EEPROM size if successful.
3651 * - (-ENOTSUP) if hardware doesn't support.
3652 * - (-ENODEV) if *port_id* invalid.
3653 * - others depends on the specific operations implementation.
3655 int rte_eth_dev_get_eeprom_length(uint8_t port_id);
3658 * Retrieve EEPROM and EEPROM attribute
3661 * The port identifier of the Ethernet device.
3663 * The template includes buffer for return EEPROM data and
3664 * EEPROM attributes to be filled.
3666 * - (0) if successful.
3667 * - (-ENOTSUP) if hardware doesn't support.
3668 * - (-ENODEV) if *port_id* invalid.
3669 * - others depends on the specific operations implementation.
3671 int rte_eth_dev_get_eeprom(uint8_t port_id, struct rte_dev_eeprom_info *info);
3674 * Program EEPROM with provided data
3677 * The port identifier of the Ethernet device.
3679 * The template includes EEPROM data for programming and
3680 * EEPROM attributes to be filled
3682 * - (0) if successful.
3683 * - (-ENOTSUP) if hardware doesn't support.
3684 * - (-ENODEV) if *port_id* invalid.
3685 * - others depends on the specific operations implementation.
3687 int rte_eth_dev_set_eeprom(uint8_t port_id, struct rte_dev_eeprom_info *info);
3690 * Set the list of multicast addresses to filter on an Ethernet device.
3693 * The port identifier of the Ethernet device.
3694 * @param mc_addr_set
3695 * The array of multicast addresses to set. Equal to NULL when the function
3696 * is invoked to flush the set of filtered addresses.
3698 * The number of multicast addresses in the *mc_addr_set* array. Equal to 0
3699 * when the function is invoked to flush the set of filtered addresses.
3701 * - (0) if successful.
3702 * - (-ENODEV) if *port_id* invalid.
3703 * - (-ENOTSUP) if PMD of *port_id* doesn't support multicast filtering.
3704 * - (-ENOSPC) if *port_id* has not enough multicast filtering resources.
3706 int rte_eth_dev_set_mc_addr_list(uint8_t port_id,
3707 struct ether_addr *mc_addr_set,
3708 uint32_t nb_mc_addr);
3711 * Enable IEEE1588/802.1AS timestamping for an Ethernet device.
3714 * The port identifier of the Ethernet device.
3718 * - -ENODEV: The port ID is invalid.
3719 * - -ENOTSUP: The function is not supported by the Ethernet driver.
3721 extern int rte_eth_timesync_enable(uint8_t port_id);
3724 * Disable IEEE1588/802.1AS timestamping for an Ethernet device.
3727 * The port identifier of the Ethernet device.
3731 * - -ENODEV: The port ID is invalid.
3732 * - -ENOTSUP: The function is not supported by the Ethernet driver.
3734 extern int rte_eth_timesync_disable(uint8_t port_id);
3737 * Read an IEEE1588/802.1AS RX timestamp from an Ethernet device.
3740 * The port identifier of the Ethernet device.
3742 * Pointer to the timestamp struct.
3744 * Device specific flags. Used to pass the RX timesync register index to
3745 * i40e. Unused in igb/ixgbe, pass 0 instead.
3749 * - -EINVAL: No timestamp is available.
3750 * - -ENODEV: The port ID is invalid.
3751 * - -ENOTSUP: The function is not supported by the Ethernet driver.
3753 extern int rte_eth_timesync_read_rx_timestamp(uint8_t port_id,
3754 struct timespec *timestamp,
3758 * Read an IEEE1588/802.1AS TX timestamp from an Ethernet device.
3761 * The port identifier of the Ethernet device.
3763 * Pointer to the timestamp struct.
3767 * - -EINVAL: No timestamp is available.
3768 * - -ENODEV: The port ID is invalid.
3769 * - -ENOTSUP: The function is not supported by the Ethernet driver.
3771 extern int rte_eth_timesync_read_tx_timestamp(uint8_t port_id,
3772 struct timespec *timestamp);
3775 * Adjust the timesync clock on an Ethernet device.
3777 * This is usually used in conjunction with other Ethdev timesync functions to
3778 * synchronize the device time using the IEEE1588/802.1AS protocol.
3781 * The port identifier of the Ethernet device.
3783 * The adjustment in nanoseconds.
3787 * - -ENODEV: The port ID is invalid.
3788 * - -ENOTSUP: The function is not supported by the Ethernet driver.
3790 extern int rte_eth_timesync_adjust_time(uint8_t port_id, int64_t delta);
3793 * Read the time from the timesync clock on an Ethernet device.
3795 * This is usually used in conjunction with other Ethdev timesync functions to
3796 * synchronize the device time using the IEEE1588/802.1AS protocol.
3799 * The port identifier of the Ethernet device.
3801 * Pointer to the timespec struct that holds the time.
3806 extern int rte_eth_timesync_read_time(uint8_t port_id, struct timespec *time);
3809 * Set the time of the timesync clock on an Ethernet device.
3811 * This is usually used in conjunction with other Ethdev timesync functions to
3812 * synchronize the device time using the IEEE1588/802.1AS protocol.
3815 * The port identifier of the Ethernet device.
3817 * Pointer to the timespec struct that holds the time.
3821 * - -EINVAL: No timestamp is available.
3822 * - -ENODEV: The port ID is invalid.
3823 * - -ENOTSUP: The function is not supported by the Ethernet driver.
3825 extern int rte_eth_timesync_write_time(uint8_t port_id,
3826 const struct timespec *time);
3829 * Copy pci device info to the Ethernet device data.
3832 * The *eth_dev* pointer is the address of the *rte_eth_dev* structure.
3834 * The *pci_dev* pointer is the address of the *rte_pci_device* structure.
3837 * - 0 on success, negative on error
3839 extern void rte_eth_copy_pci_info(struct rte_eth_dev *eth_dev, struct rte_pci_device *pci_dev);
3843 * Create memzone for HW rings.
3844 * malloc can't be used as the physical address is needed.
3845 * If the memzone is already created, then this function returns a ptr
3849 * The *eth_dev* pointer is the address of the *rte_eth_dev* structure
3851 * The name of the memory zone
3853 * The index of the queue to add to name
3855 * The sizeof of the memory area
3857 * Alignment for resulting memzone. Must be a power of 2.
3859 * The *socket_id* argument is the socket identifier in case of NUMA.
3861 const struct rte_memzone *
3862 rte_eth_dma_zone_reserve(const struct rte_eth_dev *eth_dev, const char *name,
3863 uint16_t queue_id, size_t size,
3864 unsigned align, int socket_id);
3870 #endif /* _RTE_ETHDEV_H_ */