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35 #ifndef _RTE_ETHDEV_H_
36 #define _RTE_ETHDEV_H_
41 * RTE Ethernet Device API
43 * The Ethernet Device API is composed of two parts:
45 * - The application-oriented Ethernet API that includes functions to setup
46 * an Ethernet device (configure it, setup its RX and TX queues and start it),
47 * to get its MAC address, the speed and the status of its physical link,
48 * to receive and to transmit packets, and so on.
50 * - The driver-oriented Ethernet API that exports a function allowing
51 * an Ethernet Poll Mode Driver (PMD) to simultaneously register itself as
52 * an Ethernet device driver and as a PCI driver for a set of matching PCI
53 * [Ethernet] devices classes.
55 * By default, all the functions of the Ethernet Device API exported by a PMD
56 * are lock-free functions which assume to not be invoked in parallel on
57 * different logical cores to work on the same target object. For instance,
58 * the receive function of a PMD cannot be invoked in parallel on two logical
59 * cores to poll the same RX queue [of the same port]. Of course, this function
60 * can be invoked in parallel by different logical cores on different RX queues.
61 * It is the responsibility of the upper level application to enforce this rule.
63 * If needed, parallel accesses by multiple logical cores to shared queues
64 * shall be explicitly protected by dedicated inline lock-aware functions
65 * built on top of their corresponding lock-free functions of the PMD API.
67 * In all functions of the Ethernet API, the Ethernet device is
68 * designated by an integer >= 0 named the device port identifier.
70 * At the Ethernet driver level, Ethernet devices are represented by a generic
71 * data structure of type *rte_eth_dev*.
73 * Ethernet devices are dynamically registered during the PCI probing phase
74 * performed at EAL initialization time.
75 * When an Ethernet device is being probed, an *rte_eth_dev* structure and
76 * a new port identifier are allocated for that device. Then, the eth_dev_init()
77 * function supplied by the Ethernet driver matching the probed PCI
78 * device is invoked to properly initialize the device.
80 * The role of the device init function consists of resetting the hardware,
81 * checking access to Non-volatile Memory (NVM), reading the MAC address
84 * If the device init operation is successful, the correspondence between
85 * the port identifier assigned to the new device and its associated
86 * *rte_eth_dev* structure is effectively registered.
87 * Otherwise, both the *rte_eth_dev* structure and the port identifier are
90 * The functions exported by the application Ethernet API to setup a device
91 * designated by its port identifier must be invoked in the following order:
92 * - rte_eth_dev_configure()
93 * - rte_eth_tx_queue_setup()
94 * - rte_eth_rx_queue_setup()
95 * - rte_eth_dev_start()
97 * Then, the network application can invoke, in any order, the functions
98 * exported by the Ethernet API to get the MAC address of a given device, to
99 * get the speed and the status of a device physical link, to receive/transmit
100 * [burst of] packets, and so on.
102 * If the application wants to change the configuration (i.e. call
103 * rte_eth_dev_configure(), rte_eth_tx_queue_setup(), or
104 * rte_eth_rx_queue_setup()), it must call rte_eth_dev_stop() first to stop the
105 * device and then do the reconfiguration before calling rte_eth_dev_start()
106 * again. The tramsit and receive functions should not be invoked when the
109 * Please note that some configuration is not stored between calls to
110 * rte_eth_dev_stop()/rte_eth_dev_start(). The following configuration will
113 * - flow control settings
114 * - receive mode configuration (promiscuous mode, hardware checksum mode,
115 * RSS/VMDQ settings etc.)
116 * - VLAN filtering configuration
117 * - MAC addresses supplied to MAC address array
118 * - flow director filtering mode (but not filtering rules)
119 * - NIC queue statistics mappings
121 * Any other configuration will not be stored and will need to be re-entered
122 * after a call to rte_eth_dev_start().
124 * Finally, a network application can close an Ethernet device by invoking the
125 * rte_eth_dev_close() function.
127 * Each function of the application Ethernet API invokes a specific function
128 * of the PMD that controls the target device designated by its port
130 * For this purpose, all device-specific functions of an Ethernet driver are
131 * supplied through a set of pointers contained in a generic structure of type
133 * The address of the *eth_dev_ops* structure is stored in the *rte_eth_dev*
134 * structure by the device init function of the Ethernet driver, which is
135 * invoked during the PCI probing phase, as explained earlier.
137 * In other words, each function of the Ethernet API simply retrieves the
138 * *rte_eth_dev* structure associated with the device port identifier and
139 * performs an indirect invocation of the corresponding driver function
140 * supplied in the *eth_dev_ops* structure of the *rte_eth_dev* structure.
142 * For performance reasons, the address of the burst-oriented RX and TX
143 * functions of the Ethernet driver are not contained in the *eth_dev_ops*
144 * structure. Instead, they are directly stored at the beginning of the
145 * *rte_eth_dev* structure to avoid an extra indirect memory access during
148 * RTE ethernet device drivers do not use interrupts for transmitting or
149 * receiving. Instead, Ethernet drivers export Poll-Mode receive and transmit
150 * functions to applications.
151 * Both receive and transmit functions are packet-burst oriented to minimize
152 * their cost per packet through the following optimizations:
154 * - Sharing among multiple packets the incompressible cost of the
155 * invocation of receive/transmit functions.
157 * - Enabling receive/transmit functions to take advantage of burst-oriented
158 * hardware features (L1 cache, prefetch instructions, NIC head/tail
159 * registers) to minimize the number of CPU cycles per packet, for instance,
160 * by avoiding useless read memory accesses to ring descriptors, or by
161 * systematically using arrays of pointers that exactly fit L1 cache line
162 * boundaries and sizes.
164 * The burst-oriented receive function does not provide any error notification,
165 * to avoid the corresponding overhead. As a hint, the upper-level application
166 * might check the status of the device link once being systematically returned
167 * a 0 value by the receive function of the driver for a given number of tries.
177 #include <rte_interrupts.h>
179 #include <rte_mbuf.h>
180 #include "rte_ether.h"
183 * A structure used to retrieve statistics for an Ethernet port.
185 struct rte_eth_stats {
186 uint64_t ipackets; /**< Total number of successfully received packets. */
187 uint64_t opackets; /**< Total number of successfully transmitted packets.*/
188 uint64_t ibytes; /**< Total number of successfully received bytes. */
189 uint64_t obytes; /**< Total number of successfully transmitted bytes. */
190 uint64_t ierrors; /**< Total number of erroneous received packets. */
191 uint64_t oerrors; /**< Total number of failed transmitted packets. */
192 uint64_t imcasts; /**< Total number of multicast received packets. */
193 uint64_t rx_nombuf; /**< Total number of RX mbuf allocation failures. */
194 uint64_t fdirmatch; /**< Total number of RX packets matching a filter. */
195 uint64_t fdirmiss; /**< Total number of RX packets not matching any filter. */
196 uint64_t q_ipackets[RTE_ETHDEV_QUEUE_STAT_CNTRS];
197 /**< Total number of queue RX packets. */
198 uint64_t q_opackets[RTE_ETHDEV_QUEUE_STAT_CNTRS];
199 /**< Total number of queue TX packets. */
200 uint64_t q_ibytes[RTE_ETHDEV_QUEUE_STAT_CNTRS];
201 /**< Total number of successfully received queue bytes. */
202 uint64_t q_obytes[RTE_ETHDEV_QUEUE_STAT_CNTRS];
203 /**< Total number of successfully transmitted queue bytes. */
204 uint64_t q_errors[RTE_ETHDEV_QUEUE_STAT_CNTRS];
205 /**< Total number of queue packets received that are dropped. */
207 /**< Total number of good packets received from loopback,VF Only */
209 /**< Total number of good packets transmitted to loopback,VF Only */
211 /**< Total number of good bytes received from loopback,VF Only */
213 /**< Total number of good bytes transmitted to loopback,VF Only */
217 * A structure used to retrieve link-level information of an Ethernet port.
219 struct rte_eth_link {
220 uint16_t link_speed; /**< ETH_LINK_SPEED_[10, 100, 1000, 10000] */
221 uint16_t link_duplex; /**< ETH_LINK_[HALF_DUPLEX, FULL_DUPLEX] */
222 uint8_t link_status : 1; /**< 1 -> link up, 0 -> link down */
223 }__attribute__((aligned(8))); /**< aligned for atomic64 read/write */
225 #define ETH_LINK_SPEED_AUTONEG 0 /**< Auto-negotiate link speed. */
226 #define ETH_LINK_SPEED_10 10 /**< 10 megabits/second. */
227 #define ETH_LINK_SPEED_100 100 /**< 100 megabits/second. */
228 #define ETH_LINK_SPEED_1000 1000 /**< 1 gigabits/second. */
229 #define ETH_LINK_SPEED_10000 10000 /**< 10 gigabits/second. */
231 #define ETH_LINK_AUTONEG_DUPLEX 0 /**< Auto-negotiate duplex. */
232 #define ETH_LINK_HALF_DUPLEX 1 /**< Half-duplex connection. */
233 #define ETH_LINK_FULL_DUPLEX 2 /**< Full-duplex connection. */
236 * A structure used to configure the ring threshold registers of an RX/TX
237 * queue for an Ethernet port.
239 struct rte_eth_thresh {
240 uint8_t pthresh; /**< Ring prefetch threshold. */
241 uint8_t hthresh; /**< Ring host threshold. */
242 uint8_t wthresh; /**< Ring writeback threshold. */
246 * A set of values to identify what method is to be used to route
247 * packets to multiple queues.
249 enum rte_eth_rx_mq_mode {
250 ETH_RSS = 0, /**< Default to RSS mode */
251 ETH_VMDQ_DCB, /**< Use VMDQ+DCB to route traffic to queues */
252 ETH_DCB_RX /**< For RX side,only DCB is on. */
256 * A set of values to identify what method is to be used to transmit
257 * packets using multi-TCs.
259 enum rte_eth_tx_mq_mode {
260 ETH_DCB_NONE = 0, /**< It is not in DCB mode. */
261 ETH_VMDQ_DCB_TX, /**< For TX side,both DCB and VT is on. */
262 ETH_DCB_TX /**< For TX side,only DCB is on. */
266 * A structure used to configure the RX features of an Ethernet port.
268 struct rte_eth_rxmode {
269 /** The multi-queue packet distribution mode to be used, e.g. RSS. */
270 enum rte_eth_rx_mq_mode mq_mode;
271 uint32_t max_rx_pkt_len; /**< Only used if jumbo_frame enabled. */
272 uint16_t split_hdr_size; /**< hdr buf size (header_split enabled).*/
273 uint8_t header_split : 1, /**< Header Split enable. */
274 hw_ip_checksum : 1, /**< IP/UDP/TCP checksum offload enable. */
275 hw_vlan_filter : 1, /**< VLAN filter enable. */
276 hw_vlan_strip : 1, /**< VLAN strip enable. */
277 hw_vlan_extend : 1, /**< Extended VLAN enable. */
278 jumbo_frame : 1, /**< Jumbo Frame Receipt enable. */
279 hw_strip_crc : 1; /**< Enable CRC stripping by hardware. */
283 * A structure used to configure the Receive Side Scaling (RSS) feature
284 * of an Ethernet port.
285 * If not NULL, the *rss_key* pointer of the *rss_conf* structure points
286 * to an array of 40 bytes holding the RSS key to use for hashing specific
287 * header fields of received packets.
288 * Otherwise, a default random hash key is used by the device driver.
290 * The *rss_hf* field of the *rss_conf* structure indicates the different
291 * types of IPv4/IPv6 packets to which the RSS hashing must be applied.
292 * Supplying an *rss_hf* equal to zero disables the RSS feature.
294 struct rte_eth_rss_conf {
295 uint8_t *rss_key; /**< If not NULL, 40-byte hash key. */
296 uint16_t rss_hf; /**< Hash functions to apply - see below. */
299 #define ETH_RSS_IPV4 0x0001 /**< IPv4 packet. */
300 #define ETH_RSS_IPV4_TCP 0x0002 /**< IPv4/TCP packet. */
301 #define ETH_RSS_IPV6 0x0004 /**< IPv6 packet. */
302 #define ETH_RSS_IPV6_EX 0x0008 /**< IPv6 packet with extension headers.*/
303 #define ETH_RSS_IPV6_TCP 0x0010 /**< IPv6/TCP packet. */
304 #define ETH_RSS_IPV6_TCP_EX 0x0020 /**< IPv6/TCP with extension headers. */
305 /* Intel RSS extensions to UDP packets */
306 #define ETH_RSS_IPV4_UDP 0x0040 /**< IPv4/UDP packet. */
307 #define ETH_RSS_IPV6_UDP 0x0080 /**< IPv6/UDP packet. */
308 #define ETH_RSS_IPV6_UDP_EX 0x0100 /**< IPv6/UDP with extension headers. */
309 /* Definitions used for redirection table entry size */
310 #define ETH_RSS_RETA_NUM_ENTRIES 128
311 #define ETH_RSS_RETA_MAX_QUEUE 16
313 /* Definitions used for VMDQ and DCB functionality */
314 #define ETH_VMDQ_MAX_VLAN_FILTERS 64 /**< Maximum nb. of VMDQ vlan filters. */
315 #define ETH_DCB_NUM_USER_PRIORITIES 8 /**< Maximum nb. of DCB priorities. */
316 #define ETH_VMDQ_DCB_NUM_QUEUES 128 /**< Maximum nb. of VMDQ DCB queues. */
317 #define ETH_DCB_NUM_QUEUES 128 /**< Maximum nb. of DCB queues. */
319 /* DCB capability defines */
320 #define ETH_DCB_PG_SUPPORT 0x00000001 /**< Priority Group(ETS) support. */
321 #define ETH_DCB_PFC_SUPPORT 0x00000002 /**< Priority Flow Control support. */
323 /* Definitions used for VLAN Offload functionality */
324 #define ETH_VLAN_STRIP_OFFLOAD 0x0001 /**< VLAN Strip On/Off */
325 #define ETH_VLAN_FILTER_OFFLOAD 0x0002 /**< VLAN Filter On/Off */
326 #define ETH_VLAN_EXTEND_OFFLOAD 0x0004 /**< VLAN Extend On/Off */
328 /* Definitions used for mask VLAN setting */
329 #define ETH_VLAN_STRIP_MASK 0x0001 /**< VLAN Strip setting mask */
330 #define ETH_VLAN_FILTER_MASK 0x0002 /**< VLAN Filter setting mask*/
331 #define ETH_VLAN_EXTEND_MASK 0x0004 /**< VLAN Extend setting mask*/
334 * A structure used to configure Redirection Table of the Receive Side
335 * Scaling (RSS) feature of an Ethernet port.
337 struct rte_eth_rss_reta {
338 /** First 64 mask bits indicate which entry(s) need to updated/queried. */
340 /** Second 64 mask bits indicate which entry(s) need to updated/queried. */
342 uint8_t reta[ETH_RSS_RETA_NUM_ENTRIES]; /**< 128 RETA entries*/
346 * This enum indicates the possible number of traffic classes
347 * in DCB configratioins
349 enum rte_eth_nb_tcs {
350 ETH_4_TCS = 4, /**< 4 TCs with DCB. */
351 ETH_8_TCS = 8 /**< 8 TCs with DCB. */
355 * This enum indicates the possible number of queue pools
356 * in VMDQ+DCB configurations.
358 enum rte_eth_nb_pools {
359 ETH_16_POOLS = 16, /**< 16 pools with DCB. */
360 ETH_32_POOLS = 32 /**< 32 pools with DCB. */
363 /* This structure may be extended in future. */
364 struct rte_eth_dcb_rx_conf {
365 enum rte_eth_nb_tcs nb_tcs; /**< Possible DCB TCs, 4 or 8 TCs */
366 uint8_t dcb_queue[ETH_DCB_NUM_USER_PRIORITIES];
367 /**< Possible DCB queue,4 or 8. */
370 struct rte_eth_vmdq_dcb_tx_conf {
371 enum rte_eth_nb_pools nb_queue_pools; /**< With DCB, 16 or 32 pools. */
372 uint8_t dcb_queue[ETH_DCB_NUM_USER_PRIORITIES];
373 /**< Possible DCB queue,4 or 8. */
376 struct rte_eth_dcb_tx_conf {
377 enum rte_eth_nb_tcs nb_tcs; /**< possible DCB TCs, 4 or 8 TCs. */
378 uint8_t dcb_queue[ETH_DCB_NUM_USER_PRIORITIES];
379 /**< Possible DCB queue,4 or 8. */
383 * A structure used to configure the VMDQ+DCB feature
384 * of an Ethernet port.
386 * Using this feature, packets are routed to a pool of queues, based
387 * on the vlan id in the vlan tag, and then to a specific queue within
388 * that pool, using the user priority vlan tag field.
390 * A default pool may be used, if desired, to route all traffic which
391 * does not match the vlan filter rules.
393 struct rte_eth_vmdq_dcb_conf {
394 enum rte_eth_nb_pools nb_queue_pools; /**< With DCB, 16 or 32 pools */
395 uint8_t enable_default_pool; /**< If non-zero, use a default pool */
396 uint8_t default_pool; /**< The default pool, if applicable */
397 uint8_t nb_pool_maps; /**< We can have up to 64 filters/mappings */
399 uint16_t vlan_id; /**< The vlan id of the received frame */
400 uint64_t pools; /**< Bitmask of pools for packet rx */
401 } pool_map[ETH_VMDQ_MAX_VLAN_FILTERS]; /**< VMDq vlan pool maps. */
402 uint8_t dcb_queue[ETH_DCB_NUM_USER_PRIORITIES];
403 /**< Selects a queue in a pool */
407 * A structure used to configure the TX features of an Ethernet port.
409 struct rte_eth_txmode {
410 enum rte_eth_tx_mq_mode mq_mode; /**< TX multi-queues mode. */
414 * A structure used to configure an RX ring of an Ethernet port.
416 struct rte_eth_rxconf {
417 struct rte_eth_thresh rx_thresh; /**< RX ring threshold registers. */
418 uint16_t rx_free_thresh; /**< Drives the freeing of RX descriptors. */
419 uint8_t rx_drop_en; /**< Drop packets if no descriptors are available. */
422 #define ETH_TXQ_FLAGS_NOMULTSEGS 0x0001 /**< nb_segs=1 for all mbufs */
423 #define ETH_TXQ_FLAGS_NOREFCOUNT 0x0002 /**< refcnt can be ignored */
424 #define ETH_TXQ_FLAGS_NOMULTMEMP 0x0004 /**< all bufs come from same mempool */
425 #define ETH_TXQ_FLAGS_NOVLANOFFL 0x0100 /**< disable VLAN offload */
426 #define ETH_TXQ_FLAGS_NOXSUMSCTP 0x0200 /**< disable SCTP checksum offload */
427 #define ETH_TXQ_FLAGS_NOXSUMUDP 0x0400 /**< disable UDP checksum offload */
428 #define ETH_TXQ_FLAGS_NOXSUMTCP 0x0800 /**< disable TCP checksum offload */
429 #define ETH_TXQ_FLAGS_NOOFFLOADS \
430 (ETH_TXQ_FLAGS_NOVLANOFFL | ETH_TXQ_FLAGS_NOXSUMSCTP | \
431 ETH_TXQ_FLAGS_NOXSUMUDP | ETH_TXQ_FLAGS_NOXSUMTCP)
433 * A structure used to configure a TX ring of an Ethernet port.
435 struct rte_eth_txconf {
436 struct rte_eth_thresh tx_thresh; /**< TX ring threshold registers. */
437 uint16_t tx_rs_thresh; /**< Drives the setting of RS bit on TXDs. */
438 uint16_t tx_free_thresh; /**< Drives the freeing of TX buffers. */
439 uint32_t txq_flags; /**< Set flags for the Tx queue */
443 * This enum indicates the flow control mode
445 enum rte_eth_fc_mode {
446 RTE_FC_NONE = 0, /**< Disable flow control. */
447 RTE_FC_RX_PAUSE, /**< RX pause frame, enable flowctrl on TX side. */
448 RTE_FC_TX_PAUSE, /**< TX pause frame, enable flowctrl on RX side. */
449 RTE_FC_FULL /**< Enable flow control on both side. */
453 * A structure used to configure Ethernet flow control parameter.
454 * These parameters will be configured into the register of the NIC.
455 * Please refer to the corresponding data sheet for proper value.
457 struct rte_eth_fc_conf {
458 uint32_t high_water; /**< High threshold value to trigger XOFF */
459 uint32_t low_water; /**< Low threshold value to trigger XON */
460 uint16_t pause_time; /**< Pause quota in the Pause frame */
461 uint16_t send_xon; /**< Is XON frame need be sent */
462 enum rte_eth_fc_mode mode; /**< Link flow control mode */
466 * A structure used to configure Ethernet priority flow control parameter.
467 * These parameters will be configured into the register of the NIC.
468 * Please refer to the corresponding data sheet for proper value.
470 struct rte_eth_pfc_conf {
471 struct rte_eth_fc_conf fc; /**< General flow control parameter. */
472 uint8_t priority; /**< VLAN User Priority. */
476 * Flow Director setting modes: none (default), signature or perfect.
479 RTE_FDIR_MODE_NONE = 0, /**< Disable FDIR support. */
480 RTE_FDIR_MODE_SIGNATURE, /**< Enable FDIR signature filter mode. */
481 RTE_FDIR_MODE_PERFECT, /**< Enable FDIR perfect filter mode. */
485 * Memory space that can be configured to store Flow Director filters
486 * in the board memory.
488 enum rte_fdir_pballoc_type {
489 RTE_FDIR_PBALLOC_64K = 0, /**< 64k. */
490 RTE_FDIR_PBALLOC_128K, /**< 128k. */
491 RTE_FDIR_PBALLOC_256K, /**< 256k. */
495 * Select report mode of FDIR hash information in RX descriptors.
497 enum rte_fdir_status_mode {
498 RTE_FDIR_NO_REPORT_STATUS = 0, /**< Never report FDIR hash. */
499 RTE_FDIR_REPORT_STATUS, /**< Only report FDIR hash for matching pkts. */
500 RTE_FDIR_REPORT_STATUS_ALWAYS, /**< Always report FDIR hash. */
504 * A structure used to configure the Flow Director (FDIR) feature
505 * of an Ethernet port.
507 * If mode is RTE_FDIR_DISABLE, the pballoc value is ignored.
509 struct rte_fdir_conf {
510 enum rte_fdir_mode mode; /**< Flow Director mode. */
511 enum rte_fdir_pballoc_type pballoc; /**< Space for FDIR filters. */
512 enum rte_fdir_status_mode status; /**< How to report FDIR hash. */
513 /** Offset of flexbytes field in RX packets (in 16-bit word units). */
514 uint8_t flexbytes_offset;
515 /** RX queue of packets matching a "drop" filter in perfect mode. */
520 * Possible l4type of FDIR filters.
523 RTE_FDIR_L4TYPE_NONE = 0, /**< None. */
524 RTE_FDIR_L4TYPE_UDP, /**< UDP. */
525 RTE_FDIR_L4TYPE_TCP, /**< TCP. */
526 RTE_FDIR_L4TYPE_SCTP, /**< SCTP. */
530 * Select IPv4 or IPv6 FDIR filters.
533 RTE_FDIR_IPTYPE_IPV4 = 0, /**< IPv4. */
534 RTE_FDIR_IPTYPE_IPV6 , /**< IPv6. */
538 * A structure used to define a FDIR packet filter.
540 struct rte_fdir_filter {
541 uint16_t flex_bytes; /**< Flex bytes value to match. */
542 uint16_t vlan_id; /**< VLAN ID value to match, 0 otherwise. */
543 uint16_t port_src; /**< Source port to match, 0 otherwise. */
544 uint16_t port_dst; /**< Destination port to match, 0 otherwise. */
546 uint32_t ipv4_addr; /**< IPv4 source address to match. */
547 uint32_t ipv6_addr[4]; /**< IPv6 source address to match. */
548 } ip_src; /**< IPv4/IPv6 source address to match (union of above). */
550 uint32_t ipv4_addr; /**< IPv4 destination address to match. */
551 uint32_t ipv6_addr[4]; /**< IPv6 destination address to match */
552 } ip_dst; /**< IPv4/IPv6 destination address to match (union of above). */
553 enum rte_l4type l4type; /**< l4type to match: NONE/UDP/TCP/SCTP. */
554 enum rte_iptype iptype; /**< IP packet type to match: IPv4 or IPv6. */
558 * A structure used to configure FDIR masks that are used by the device
559 * to match the various fields of RX packet headers.
560 * @note The only_ip_flow field has the opposite meaning compared to other
563 struct rte_fdir_masks {
564 /** When set to 1, packet l4type is \b NOT relevant in filters, and
565 source and destination port masks must be set to zero. */
566 uint8_t only_ip_flow;
567 /** If set to 1, vlan_id is relevant in filters. */
569 /** If set to 1, vlan_prio is relevant in filters. */
571 /** If set to 1, flexbytes is relevant in filters. */
573 /** If set to 1, set the IPv6 masks. Otherwise set the IPv4 masks. */
574 uint8_t set_ipv6_mask;
575 /** When set to 1, comparison of destination IPv6 address with IP6AT
576 registers is meaningful. */
577 uint8_t comp_ipv6_dst;
578 /** Mask of Destination IPv4 Address. All bits set to 1 define the
579 relevant bits to use in the destination address of an IPv4 packet
580 when matching it against FDIR filters. */
581 uint32_t dst_ipv4_mask;
582 /** Mask of Source IPv4 Address. All bits set to 1 define
583 the relevant bits to use in the source address of an IPv4 packet
584 when matching it against FDIR filters. */
585 uint32_t src_ipv4_mask;
586 /** Mask of Source IPv6 Address. All bits set to 1 define the
587 relevant BYTES to use in the source address of an IPv6 packet
588 when matching it against FDIR filters. */
589 uint16_t dst_ipv6_mask;
590 /** Mask of Destination IPv6 Address. All bits set to 1 define the
591 relevant BYTES to use in the destination address of an IPv6 packet
592 when matching it against FDIR filters. */
593 uint16_t src_ipv6_mask;
594 /** Mask of Source Port. All bits set to 1 define the relevant
595 bits to use in the source port of an IP packets when matching it
596 against FDIR filters. */
597 uint16_t src_port_mask;
598 /** Mask of Destination Port. All bits set to 1 define the relevant
599 bits to use in the destination port of an IP packet when matching it
600 against FDIR filters. */
601 uint16_t dst_port_mask;
605 * A structure used to report the status of the flow director filters in use.
607 struct rte_eth_fdir {
608 /** Number of filters with collision indication. */
610 /** Number of free (non programmed) filters. */
612 /** The Lookup hash value of the added filter that updated the value
613 of the MAXLEN field */
615 /** Longest linked list of filters in the table. */
617 /** Number of added filters. */
619 /** Number of removed filters. */
621 /** Number of failed added filters (no more space in device). */
623 /** Number of failed removed filters. */
628 * A structure used to enable/disable specific device interrupts.
630 struct rte_intr_conf {
631 /** enable/disable lsc interrupt. 0 (default) - disable, 1 enable */
636 * A structure used to configure an Ethernet port.
637 * Depending upon the RX multi-queue mode, extra advanced
638 * configuration settings may be needed.
640 struct rte_eth_conf {
642 /**< ETH_LINK_SPEED_10[0|00|000], or 0 for autonegotation */
643 uint16_t link_duplex;
644 /**< ETH_LINK_[HALF_DUPLEX|FULL_DUPLEX], or 0 for autonegotation */
645 struct rte_eth_rxmode rxmode; /**< Port RX configuration. */
646 struct rte_eth_txmode txmode; /**< Port TX configuration. */
648 struct rte_eth_rss_conf rss_conf; /**< Port RSS configuration */
649 struct rte_eth_vmdq_dcb_conf vmdq_dcb_conf;
650 /**< Port vmdq+dcb configuration. */
651 struct rte_eth_dcb_rx_conf dcb_rx_conf;
652 /**< Port dcb RX configuration. */
653 } rx_adv_conf; /**< Port RX filtering configuration (union). */
655 struct rte_eth_vmdq_dcb_tx_conf vmdq_dcb_tx_conf;
656 /**< Port vmdq+dcb TX configuration. */
657 struct rte_eth_dcb_tx_conf dcb_tx_conf;
658 /**< Port dcb TX configuration. */
659 } tx_adv_conf; /**< Port TX DCB configuration (union). */
660 /** Currently,Priority Flow Control(PFC) are supported,if DCB with PFC
661 is needed,and the variable must be set ETH_DCB_PFC_SUPPORT. */
662 uint32_t dcb_capability_en;
663 struct rte_fdir_conf fdir_conf; /**< FDIR configuration. */
664 struct rte_intr_conf intr_conf; /**< Interrupt mode configuration. */
668 * A structure used to retrieve the contextual information of
669 * an Ethernet device, such as the controlling driver of the device,
670 * its PCI context, etc...
672 struct rte_eth_dev_info {
673 struct rte_pci_device *pci_dev; /**< Device PCI information. */
674 const char *driver_name; /**< Device Driver name. */
675 uint32_t min_rx_bufsize; /**< Minimum size of RX buffer. */
676 uint32_t max_rx_pktlen; /**< Maximum configurable length of RX pkt. */
677 uint16_t max_rx_queues; /**< Maximum number of RX queues. */
678 uint16_t max_tx_queues; /**< Maximum number of TX queues. */
679 uint32_t max_mac_addrs; /**< Maximum number of MAC addresses. */
684 struct rte_eth_dev_callback;
685 /** @internal Structure to keep track of registered callbacks */
686 TAILQ_HEAD(rte_eth_dev_cb_list, rte_eth_dev_callback);
689 * Definitions of all functions exported by an Ethernet driver through the
690 * the generic structure of type *eth_dev_ops* supplied in the *rte_eth_dev*
691 * structure associated with an Ethernet device.
694 typedef int (*eth_dev_configure_t)(struct rte_eth_dev *dev);
695 /**< @internal Ethernet device configuration. */
697 typedef int (*eth_dev_start_t)(struct rte_eth_dev *dev);
698 /**< @internal Function used to start a configured Ethernet device. */
700 typedef void (*eth_dev_stop_t)(struct rte_eth_dev *dev);
701 /**< @internal Function used to stop a configured Ethernet device. */
703 typedef void (*eth_dev_close_t)(struct rte_eth_dev *dev);
704 /**< @internal Function used to close a configured Ethernet device. */
706 typedef void (*eth_promiscuous_enable_t)(struct rte_eth_dev *dev);
707 /**< @internal Function used to enable the RX promiscuous mode of an Ethernet device. */
709 typedef void (*eth_promiscuous_disable_t)(struct rte_eth_dev *dev);
710 /**< @internal Function used to disable the RX promiscuous mode of an Ethernet device. */
712 typedef void (*eth_allmulticast_enable_t)(struct rte_eth_dev *dev);
713 /**< @internal Enable the receipt of all multicast packets by an Ethernet device. */
715 typedef void (*eth_allmulticast_disable_t)(struct rte_eth_dev *dev);
716 /**< @internal Disable the receipt of all multicast packets by an Ethernet device. */
718 typedef int (*eth_link_update_t)(struct rte_eth_dev *dev,
719 int wait_to_complete);
720 /**< @internal Get link speed, duplex mode and state (up/down) of an Ethernet device. */
722 typedef void (*eth_stats_get_t)(struct rte_eth_dev *dev,
723 struct rte_eth_stats *igb_stats);
724 /**< @internal Get global I/O statistics of an Ethernet device. */
726 typedef void (*eth_stats_reset_t)(struct rte_eth_dev *dev);
727 /**< @internal Reset global I/O statistics of an Ethernet device to 0. */
729 typedef int (*eth_queue_stats_mapping_set_t)(struct rte_eth_dev *dev,
733 /**< @internal Set a queue statistics mapping for a tx/rx queue of an Ethernet device. */
735 typedef void (*eth_dev_infos_get_t)(struct rte_eth_dev *dev,
736 struct rte_eth_dev_info *dev_info);
737 /**< @internal Get specific informations of an Ethernet device. */
739 typedef int (*eth_rx_queue_setup_t)(struct rte_eth_dev *dev,
740 uint16_t rx_queue_id,
742 unsigned int socket_id,
743 const struct rte_eth_rxconf *rx_conf,
744 struct rte_mempool *mb_pool);
745 /**< @internal Set up a receive queue of an Ethernet device. */
747 typedef int (*eth_tx_queue_setup_t)(struct rte_eth_dev *dev,
748 uint16_t tx_queue_id,
750 unsigned int socket_id,
751 const struct rte_eth_txconf *tx_conf);
752 /**< @internal Setup a transmit queue of an Ethernet device. */
754 typedef void (*eth_queue_release_t)(void *queue);
755 /**< @internal Release memory resources allocated by given RX/TX queue. */
757 typedef int (*vlan_filter_set_t)(struct rte_eth_dev *dev,
760 /**< @internal filtering of a VLAN Tag Identifier by an Ethernet device. */
762 typedef void (*vlan_tpid_set_t)(struct rte_eth_dev *dev,
764 /**< @internal set the outer VLAN-TPID by an Ethernet device. */
766 typedef void (*vlan_offload_set_t)(struct rte_eth_dev *dev, int mask);
767 /**< @internal set VLAN offload function by an Ethernet device. */
769 typedef void (*vlan_strip_queue_set_t)(struct rte_eth_dev *dev,
770 uint16_t rx_queue_id,
772 /**< @internal VLAN stripping enable/disable by an queue of Ethernet device. */
774 typedef uint16_t (*eth_rx_burst_t)(void *rxq,
775 struct rte_mbuf **rx_pkts,
777 /**< @internal Retrieve input packets from a receive queue of an Ethernet device. */
779 typedef uint16_t (*eth_tx_burst_t)(void *txq,
780 struct rte_mbuf **tx_pkts,
782 /**< @internal Send output packets on a transmit queue of an Ethernet device. */
784 typedef int (*fdir_add_signature_filter_t)(struct rte_eth_dev *dev,
785 struct rte_fdir_filter *fdir_ftr,
787 /**< @internal Setup a new signature filter rule on an Ethernet device */
789 typedef int (*fdir_update_signature_filter_t)(struct rte_eth_dev *dev,
790 struct rte_fdir_filter *fdir_ftr,
792 /**< @internal Update a signature filter rule on an Ethernet device */
794 typedef int (*fdir_remove_signature_filter_t)(struct rte_eth_dev *dev,
795 struct rte_fdir_filter *fdir_ftr);
796 /**< @internal Remove a signature filter rule on an Ethernet device */
798 typedef void (*fdir_infos_get_t)(struct rte_eth_dev *dev,
799 struct rte_eth_fdir *fdir);
800 /**< @internal Get information about fdir status */
802 typedef int (*fdir_add_perfect_filter_t)(struct rte_eth_dev *dev,
803 struct rte_fdir_filter *fdir_ftr,
804 uint16_t soft_id, uint8_t rx_queue,
806 /**< @internal Setup a new perfect filter rule on an Ethernet device */
808 typedef int (*fdir_update_perfect_filter_t)(struct rte_eth_dev *dev,
809 struct rte_fdir_filter *fdir_ftr,
810 uint16_t soft_id, uint8_t rx_queue,
812 /**< @internal Update a perfect filter rule on an Ethernet device */
814 typedef int (*fdir_remove_perfect_filter_t)(struct rte_eth_dev *dev,
815 struct rte_fdir_filter *fdir_ftr,
817 /**< @internal Remove a perfect filter rule on an Ethernet device */
819 typedef int (*fdir_set_masks_t)(struct rte_eth_dev *dev,
820 struct rte_fdir_masks *fdir_masks);
821 /**< @internal Setup flow director masks on an Ethernet device */
823 typedef int (*flow_ctrl_set_t)(struct rte_eth_dev *dev,
824 struct rte_eth_fc_conf *fc_conf);
825 /**< @internal Setup flow control parameter on an Ethernet device */
827 typedef int (*priority_flow_ctrl_set_t)(struct rte_eth_dev *dev,
828 struct rte_eth_pfc_conf *pfc_conf);
829 /**< @internal Setup priority flow control parameter on an Ethernet device */
831 typedef int (*reta_update_t)(struct rte_eth_dev *dev,
832 struct rte_eth_rss_reta *reta_conf);
833 /**< @internal Update RSS redirection table on an Ethernet device */
835 typedef int (*reta_query_t)(struct rte_eth_dev *dev,
836 struct rte_eth_rss_reta *reta_conf);
837 /**< @internal Query RSS redirection table on an Ethernet device */
839 typedef int (*eth_dev_led_on_t)(struct rte_eth_dev *dev);
840 /**< @internal Turn on SW controllable LED on an Ethernet device */
842 typedef int (*eth_dev_led_off_t)(struct rte_eth_dev *dev);
843 /**< @internal Turn off SW controllable LED on an Ethernet device */
845 typedef void (*eth_mac_addr_remove_t)(struct rte_eth_dev *dev, uint32_t index);
846 /**< @internal Remove MAC address from receive address register */
848 typedef void (*eth_mac_addr_add_t)(struct rte_eth_dev *dev,
849 struct ether_addr *mac_addr,
852 /**< @internal Set a MAC address into Receive Address Address Register */
855 * @internal A structure containing the functions exported by an Ethernet driver.
858 eth_dev_configure_t dev_configure; /**< Configure device. */
859 eth_dev_start_t dev_start; /**< Start device. */
860 eth_dev_stop_t dev_stop; /**< Stop device. */
861 eth_dev_close_t dev_close; /**< Close device. */
862 eth_promiscuous_enable_t promiscuous_enable; /**< Promiscuous ON. */
863 eth_promiscuous_disable_t promiscuous_disable;/**< Promiscuous OFF. */
864 eth_allmulticast_enable_t allmulticast_enable;/**< RX multicast ON. */
865 eth_allmulticast_disable_t allmulticast_disable;/**< RX multicast OF. */
866 eth_link_update_t link_update; /**< Get device link state. */
867 eth_stats_get_t stats_get; /**< Get device statistics. */
868 eth_stats_reset_t stats_reset; /**< Reset device statistics. */
869 eth_queue_stats_mapping_set_t queue_stats_mapping_set;
870 /**< Configure per queue stat counter mapping. */
871 eth_dev_infos_get_t dev_infos_get; /**< Get device info. */
872 vlan_filter_set_t vlan_filter_set; /**< Filter VLAN Setup. */
873 vlan_tpid_set_t vlan_tpid_set; /**< Outer VLAN TPID Setup. */
874 vlan_strip_queue_set_t vlan_strip_queue_set; /**< VLAN Stripping on queue. */
875 vlan_offload_set_t vlan_offload_set; /**< Set VLAN Offload. */
876 eth_rx_queue_setup_t rx_queue_setup;/**< Set up device RX queue.*/
877 eth_queue_release_t rx_queue_release;/**< Release RX queue.*/
878 eth_tx_queue_setup_t tx_queue_setup;/**< Set up device TX queue.*/
879 eth_queue_release_t tx_queue_release;/**< Release TX queue.*/
880 eth_dev_led_on_t dev_led_on; /**< Turn on LED. */
881 eth_dev_led_off_t dev_led_off; /**< Turn off LED. */
882 flow_ctrl_set_t flow_ctrl_set; /**< Setup flow control. */
883 priority_flow_ctrl_set_t priority_flow_ctrl_set; /**< Setup priority flow control.*/
884 eth_mac_addr_remove_t mac_addr_remove; /**< Remove MAC address */
885 eth_mac_addr_add_t mac_addr_add; /**< Add a MAC address */
887 /** Add a signature filter. */
888 fdir_add_signature_filter_t fdir_add_signature_filter;
889 /** Update a signature filter. */
890 fdir_update_signature_filter_t fdir_update_signature_filter;
891 /** Remove a signature filter. */
892 fdir_remove_signature_filter_t fdir_remove_signature_filter;
893 /** Get information about FDIR status. */
894 fdir_infos_get_t fdir_infos_get;
895 /** Add a perfect filter. */
896 fdir_add_perfect_filter_t fdir_add_perfect_filter;
897 /** Update a perfect filter. */
898 fdir_update_perfect_filter_t fdir_update_perfect_filter;
899 /** Remove a perfect filter. */
900 fdir_remove_perfect_filter_t fdir_remove_perfect_filter;
901 /** Setup masks for FDIR filtering. */
902 fdir_set_masks_t fdir_set_masks;
903 /** Update redirection table. */
904 reta_update_t reta_update;
905 /** Query redirection table. */
906 reta_query_t reta_query;
911 * The generic data structure associated with each ethernet device.
913 * Pointers to burst-oriented packet receive and transmit functions are
914 * located at the beginning of the structure, along with the pointer to
915 * where all the data elements for the particular device are stored in shared
916 * memory. This split allows the function pointer and driver data to be per-
917 * process, while the actual configuration data for the device is shared.
920 eth_rx_burst_t rx_pkt_burst; /**< Pointer to PMD receive function. */
921 eth_tx_burst_t tx_pkt_burst; /**< Pointer to PMD transmit function. */
922 struct rte_eth_dev_data *data; /**< Pointer to device data */
923 const struct eth_driver *driver;/**< Driver for this device */
924 struct eth_dev_ops *dev_ops; /**< Functions exported by PMD */
925 struct rte_pci_device *pci_dev; /**< PCI info. supplied by probing */
926 struct rte_eth_dev_cb_list callbacks; /**< User application callbacks */
931 * The data part, with no function pointers, associated with each ethernet device.
933 * This structure is safe to place in shared memory to be common among different
934 * processes in a multi-process configuration.
936 struct rte_eth_dev_data {
937 void **rx_queues; /**< Array of pointers to RX queues. */
938 void **tx_queues; /**< Array of pointers to TX queues. */
939 uint16_t nb_rx_queues; /**< Number of RX queues. */
940 uint16_t nb_tx_queues; /**< Number of TX queues. */
942 void *dev_private; /**< PMD-specific private data */
944 struct rte_eth_link dev_link;
945 /**< Link-level information & status */
947 struct rte_eth_conf dev_conf; /**< Configuration applied to device. */
948 uint16_t max_frame_size; /**< Default is ETHER_MAX_LEN (1518). */
950 uint64_t rx_mbuf_alloc_failed; /**< RX ring mbuf allocation failures. */
951 struct ether_addr* mac_addrs;/**< Device Ethernet Link address. */
952 uint8_t port_id; /**< Device [external] port identifier. */
953 uint8_t promiscuous : 1, /**< RX promiscuous mode ON(1) / OFF(0). */
954 scattered_rx : 1, /**< RX of scattered packets is ON(1) / OFF(0) */
955 all_multicast : 1, /**< RX all multicast mode ON(1) / OFF(0). */
956 dev_started : 1; /**< Device state: STARTED(1) / STOPPED(0). */
961 * The pool of *rte_eth_dev* structures. The size of the pool
962 * is configured at compile-time in the <rte_ethdev.c> file.
964 extern struct rte_eth_dev rte_eth_devices[];
967 * Get the total number of Ethernet devices that have been successfully
968 * initialized by the [matching] Ethernet driver during the PCI probing phase.
969 * All devices whose port identifier is in the range
970 * [0, rte_eth_dev_count() - 1] can be operated on by network applications.
973 * - The total number of usable Ethernet devices.
975 extern uint8_t rte_eth_dev_count(void);
980 * Initialization function of an Ethernet driver invoked for each matching
981 * Ethernet PCI device detected during the PCI probing phase.
984 * The pointer to the [matching] Ethernet driver structure supplied by
985 * the PMD when it registered itself.
987 * The *eth_dev* pointer is the address of the *rte_eth_dev* structure
988 * associated with the matching device and which have been [automatically]
989 * allocated in the *rte_eth_devices* array.
990 * The *eth_dev* structure is supplied to the driver initialization function
991 * with the following fields already initialized:
993 * - *pci_dev*: Holds the pointers to the *rte_pci_device* structure which
994 * contains the generic PCI information of the matching device.
996 * - *dev_private*: Holds a pointer to the device private data structure.
998 * - *max_frame_size*: Contains the default Ethernet maximum frame length
1001 * - *port_id*: Contains the port index of the device (actually the index
1002 * of the *eth_dev* structure in the *rte_eth_devices* array).
1005 * - 0: Success, the device is properly initialized by the driver.
1006 * In particular, the driver MUST have set up the *dev_ops* pointer
1007 * of the *eth_dev* structure.
1008 * - <0: Error code of the device initialization failure.
1010 typedef int (*eth_dev_init_t)(struct eth_driver *eth_drv,
1011 struct rte_eth_dev *eth_dev);
1015 * The structure associated with a PMD Ethernet driver.
1017 * Each Ethernet driver acts as a PCI driver and is represented by a generic
1018 * *eth_driver* structure that holds:
1020 * - An *rte_pci_driver* structure (which must be the first field).
1022 * - The *eth_dev_init* function invoked for each matching PCI device.
1024 * - The size of the private data to allocate for each matching device.
1027 struct rte_pci_driver pci_drv; /**< The PMD is also a PCI driver. */
1028 eth_dev_init_t eth_dev_init; /**< Device init function. */
1029 unsigned int dev_private_size; /**< Size of device private data. */
1034 * A function invoked by the initialization function of an Ethernet driver
1035 * to simultaneously register itself as a PCI driver and as an Ethernet
1036 * Poll Mode Driver (PMD).
1039 * The pointer to the *eth_driver* structure associated with
1040 * the Ethernet driver.
1042 extern void rte_eth_driver_register(struct eth_driver *eth_drv);
1045 * The initialization function of the driver for
1046 * Intel(r) IGB Gigabit Ethernet Controller devices.
1047 * This function is invoked once at EAL start time.
1051 extern int rte_igb_pmd_init(void);
1054 * The initialization function of the driver for
1055 * Intel(r) EM Gigabit Ethernet Controller devices.
1056 * This function is invoked once at EAL start time.
1060 extern int rte_em_pmd_init(void);
1063 * The initialization function of the driver for 1Gbps Intel IGB_VF
1065 * Invoked once at EAL start time.
1069 extern int rte_igbvf_pmd_init(void);
1072 * The initialization function of the driver for 10Gbps Intel IXGBE
1074 * Invoked once at EAL start time.
1078 extern int rte_ixgbe_pmd_init(void);
1081 * The initialization function of the driver for 10Gbps Intel IXGBE_VF
1083 * Invoked once at EAL start time.
1087 extern int rte_ixgbevf_pmd_init(void);
1090 * The initialization function of *all* supported and enabled drivers.
1091 * Right now, the following PMDs are supported:
1097 * This function is invoked once at EAL start time.
1100 * Error code of the device initialization failure,
1101 * -ENODEV if there are no drivers available
1102 * (e.g. if all driver config options are = n).
1105 int rte_pmd_init_all(void)
1109 #ifdef RTE_LIBRTE_IGB_PMD
1110 if ((ret = rte_igb_pmd_init()) != 0) {
1111 RTE_LOG(ERR, PMD, "Cannot init igb PMD\n");
1114 if ((ret = rte_igbvf_pmd_init()) != 0) {
1115 RTE_LOG(ERR, PMD, "Cannot init igbvf PMD\n");
1118 #endif /* RTE_LIBRTE_IGB_PMD */
1120 #ifdef RTE_LIBRTE_EM_PMD
1121 if ((ret = rte_em_pmd_init()) != 0) {
1122 RTE_LOG(ERR, PMD, "Cannot init em PMD\n");
1125 #endif /* RTE_LIBRTE_EM_PMD */
1127 #ifdef RTE_LIBRTE_IXGBE_PMD
1128 if ((ret = rte_ixgbe_pmd_init()) != 0) {
1129 RTE_LOG(ERR, PMD, "Cannot init ixgbe PMD\n");
1132 if ((ret = rte_ixgbevf_pmd_init()) != 0) {
1133 RTE_LOG(ERR, PMD, "Cannot init ixgbevf PMD\n");
1136 #endif /* RTE_LIBRTE_IXGBE_PMD */
1139 RTE_LOG(ERR, PMD, "No PMD(s) are configured\n");
1144 * Configure an Ethernet device.
1145 * This function must be invoked first before any other function in the
1146 * Ethernet API. This function can also be re-invoked when a device is in the
1150 * The port identifier of the Ethernet device to configure.
1151 * @param nb_rx_queue
1152 * The number of receive queues to set up for the Ethernet device.
1153 * @param nb_tx_queue
1154 * The number of transmit queues to set up for the Ethernet device.
1156 * The pointer to the configuration data to be used for the Ethernet device.
1157 * The *rte_eth_conf* structure includes:
1158 * - the hardware offload features to activate, with dedicated fields for
1159 * each statically configurable offload hardware feature provided by
1160 * Ethernet devices, such as IP checksum or VLAN tag stripping for
1162 * - the Receive Side Scaling (RSS) configuration when using multiple RX
1165 * Embedding all configuration information in a single data structure
1166 * is the more flexible method that allows the addition of new features
1167 * without changing the syntax of the API.
1169 * - 0: Success, device configured.
1170 * - <0: Error code returned by the driver configuration function.
1172 extern int rte_eth_dev_configure(uint8_t port_id,
1173 uint16_t nb_rx_queue,
1174 uint16_t nb_tx_queue,
1175 const struct rte_eth_conf *eth_conf);
1178 * Allocate and set up a receive queue for an Ethernet device.
1180 * The function allocates a contiguous block of memory for *nb_rx_desc*
1181 * receive descriptors from a memory zone associated with *socket_id*
1182 * and initializes each receive descriptor with a network buffer allocated
1183 * from the memory pool *mb_pool*.
1186 * The port identifier of the Ethernet device.
1187 * @param rx_queue_id
1188 * The index of the receive queue to set up.
1189 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
1190 * to rte_eth_dev_configure().
1192 * The number of receive descriptors to allocate for the receive ring.
1194 * The *socket_id* argument is the socket identifier in case of NUMA.
1195 * The value can be *SOCKET_ID_ANY* if there is no NUMA constraint for
1196 * the DMA memory allocated for the receive descriptors of the ring.
1198 * The pointer to the configuration data to be used for the receive queue.
1199 * The *rx_conf* structure contains an *rx_thresh* structure with the values
1200 * of the Prefetch, Host, and Write-Back threshold registers of the receive
1203 * The pointer to the memory pool from which to allocate *rte_mbuf* network
1204 * memory buffers to populate each descriptor of the receive ring.
1206 * - 0: Success, receive queue correctly set up.
1207 * - -EINVAL: The size of network buffers which can be allocated from the
1208 * memory pool does not fit the various buffer sizes allowed by the
1209 * device controller.
1210 * - -ENOMEM: Unable to allocate the receive ring descriptors or to
1211 * allocate network memory buffers from the memory pool when
1212 * initializing receive descriptors.
1214 extern int rte_eth_rx_queue_setup(uint8_t port_id, uint16_t rx_queue_id,
1215 uint16_t nb_rx_desc, unsigned int socket_id,
1216 const struct rte_eth_rxconf *rx_conf,
1217 struct rte_mempool *mb_pool);
1220 * Allocate and set up a transmit queue for an Ethernet device.
1223 * The port identifier of the Ethernet device.
1224 * @param tx_queue_id
1225 * The index of the transmit queue to set up.
1226 * The value must be in the range [0, nb_tx_queue - 1] previously supplied
1227 * to rte_eth_dev_configure().
1229 * The number of transmit descriptors to allocate for the transmit ring.
1231 * The *socket_id* argument is the socket identifier in case of NUMA.
1232 * Its value can be *SOCKET_ID_ANY* if there is no NUMA constraint for
1233 * the DMA memory allocated for the transmit descriptors of the ring.
1235 * The pointer to the configuration data to be used for the transmit queue.
1236 * The *tx_conf* structure contains the following data:
1237 * - The *tx_thresh* structure with the values of the Prefetch, Host, and
1238 * Write-Back threshold registers of the transmit ring.
1239 * When setting Write-Back threshold to the value greater then zero,
1240 * *tx_rs_thresh* value should be explicitly set to one.
1241 * - The *tx_free_thresh* value indicates the [minimum] number of network
1242 * buffers that must be pending in the transmit ring to trigger their
1243 * [implicit] freeing by the driver transmit function.
1244 * - The *tx_rs_thresh* value indicates the [minimum] number of transmit
1245 * descriptors that must be pending in the transmit ring before setting the
1246 * RS bit on a descriptor by the driver transmit function.
1247 * The *tx_rs_thresh* value should be less or equal then
1248 * *tx_free_thresh* value, and both of them should be less then
1250 * - The *txq_flags* member contains flags to pass to the TX queue setup
1251 * function to configure the behavior of the TX queue. This should be set
1252 * to 0 if no special configuration is required.
1254 * Note that setting *tx_free_thresh* or *tx_rs_thresh* value to 0 forces
1255 * the transmit function to use default values.
1257 * - 0: Success, the transmit queue is correctly set up.
1258 * - -ENOMEM: Unable to allocate the transmit ring descriptors.
1260 extern int rte_eth_tx_queue_setup(uint8_t port_id, uint16_t tx_queue_id,
1261 uint16_t nb_tx_desc, unsigned int socket_id,
1262 const struct rte_eth_txconf *tx_conf);
1265 * Return the NUMA socket to which an Ethernet device is connected
1268 * The port identifier of the Ethernet device
1270 * The NUMA socket id to which the Ethernet device is connected or
1271 * a default of zero if the socket could not be determined.
1272 * -1 is returned is the port_id value is out of range.
1274 extern int rte_eth_dev_socket_id(uint8_t port_id);
1278 * Start an Ethernet device.
1280 * The device start step is the last one and consists of setting the configured
1281 * offload features and in starting the transmit and the receive units of the
1283 * On success, all basic functions exported by the Ethernet API (link status,
1284 * receive/transmit, and so on) can be invoked.
1287 * The port identifier of the Ethernet device.
1289 * - 0: Success, Ethernet device started.
1290 * - <0: Error code of the driver device start function.
1292 extern int rte_eth_dev_start(uint8_t port_id);
1295 * Stop an Ethernet device. The device can be restarted with a call to
1296 * rte_eth_dev_start()
1299 * The port identifier of the Ethernet device.
1301 extern void rte_eth_dev_stop(uint8_t port_id);
1304 * Close an Ethernet device. The device cannot be restarted!
1307 * The port identifier of the Ethernet device.
1309 extern void rte_eth_dev_close(uint8_t port_id);
1312 * Enable receipt in promiscuous mode for an Ethernet device.
1315 * The port identifier of the Ethernet device.
1317 extern void rte_eth_promiscuous_enable(uint8_t port_id);
1320 * Disable receipt in promiscuous mode for an Ethernet device.
1323 * The port identifier of the Ethernet device.
1325 extern void rte_eth_promiscuous_disable(uint8_t port_id);
1328 * Return the value of promiscuous mode for an Ethernet device.
1331 * The port identifier of the Ethernet device.
1333 * - (1) if promiscuous is enabled
1334 * - (0) if promiscuous is disabled.
1337 extern int rte_eth_promiscuous_get(uint8_t port_id);
1340 * Enable the receipt of any multicast frame by an Ethernet device.
1343 * The port identifier of the Ethernet device.
1345 extern void rte_eth_allmulticast_enable(uint8_t port_id);
1348 * Disable the receipt of all multicast frames by an Ethernet device.
1351 * The port identifier of the Ethernet device.
1353 extern void rte_eth_allmulticast_disable(uint8_t port_id);
1356 * Return the value of allmulticast mode for an Ethernet device.
1359 * The port identifier of the Ethernet device.
1361 * - (1) if allmulticast is enabled
1362 * - (0) if allmulticast is disabled.
1365 extern int rte_eth_allmulticast_get(uint8_t port_id);
1368 * Retrieve the status (ON/OFF), the speed (in Mbps) and the mode (HALF-DUPLEX
1369 * or FULL-DUPLEX) of the physical link of an Ethernet device. It might need
1370 * to wait up to 9 seconds in it.
1373 * The port identifier of the Ethernet device.
1375 * A pointer to an *rte_eth_link* structure to be filled with
1376 * the status, the speed and the mode of the Ethernet device link.
1378 extern void rte_eth_link_get(uint8_t port_id, struct rte_eth_link *link);
1381 * Retrieve the status (ON/OFF), the speed (in Mbps) and the mode (HALF-DUPLEX
1382 * or FULL-DUPLEX) of the physical link of an Ethernet device. It is a no-wait
1383 * version of rte_eth_link_get().
1386 * The port identifier of the Ethernet device.
1388 * A pointer to an *rte_eth_link* structure to be filled with
1389 * the status, the speed and the mode of the Ethernet device link.
1391 extern void rte_eth_link_get_nowait(uint8_t port_id,
1392 struct rte_eth_link *link);
1395 * Retrieve the general I/O statistics of an Ethernet device.
1398 * The port identifier of the Ethernet device.
1400 * A pointer to a structure of type *rte_eth_stats* to be filled with
1401 * the values of device counters for the following set of statistics:
1402 * - *ipackets* with the total of successfully received packets.
1403 * - *opackets* with the total of successfully transmitted packets.
1404 * - *ibytes* with the total of successfully received bytes.
1405 * - *obytes* with the total of successfully transmitted bytes.
1406 * - *ierrors* with the total of erroneous received packets.
1407 * - *oerrors* with the total of failed transmitted packets.
1409 extern void rte_eth_stats_get(uint8_t port_id, struct rte_eth_stats *stats);
1412 * Reset the general I/O statistics of an Ethernet device.
1415 * The port identifier of the Ethernet device.
1417 extern void rte_eth_stats_reset(uint8_t port_id);
1420 * Set a mapping for the specified transmit queue to the specified per-queue
1421 * statistics counter.
1424 * The port identifier of the Ethernet device.
1425 * @param tx_queue_id
1426 * The index of the transmit queue for which a queue stats mapping is required.
1427 * The value must be in the range [0, nb_tx_queue - 1] previously supplied
1428 * to rte_eth_dev_configure().
1430 * The per-queue packet statistics functionality number that the transmit
1431 * queue is to be assigned.
1432 * The value must be in the range [0, RTE_MAX_ETHPORT_QUEUE_STATS_MAPS - 1].
1434 * Zero if successful. Non-zero otherwise.
1436 extern int rte_eth_dev_set_tx_queue_stats_mapping(uint8_t port_id,
1437 uint16_t tx_queue_id,
1441 * Set a mapping for the specified receive queue to the specified per-queue
1442 * statistics counter.
1445 * The port identifier of the Ethernet device.
1446 * @param rx_queue_id
1447 * The index of the receive queue for which a queue stats mapping is required.
1448 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
1449 * to rte_eth_dev_configure().
1451 * The per-queue packet statistics functionality number that the receive
1452 * queue is to be assigned.
1453 * The value must be in the range [0, RTE_MAX_ETHPORT_QUEUE_STATS_MAPS - 1].
1455 * Zero if successful. Non-zero otherwise.
1457 extern int rte_eth_dev_set_rx_queue_stats_mapping(uint8_t port_id,
1458 uint16_t rx_queue_id,
1462 * Retrieve the Ethernet address of an Ethernet device.
1465 * The port identifier of the Ethernet device.
1467 * A pointer to a structure of type *ether_addr* to be filled with
1468 * the Ethernet address of the Ethernet device.
1470 extern void rte_eth_macaddr_get(uint8_t port_id, struct ether_addr *mac_addr);
1473 * Retrieve the contextual information of an Ethernet device.
1476 * The port identifier of the Ethernet device.
1478 * A pointer to a structure of type *rte_eth_dev_info* to be filled with
1479 * the contextual information of the Ethernet device.
1481 extern void rte_eth_dev_info_get(uint8_t port_id,
1482 struct rte_eth_dev_info *dev_info);
1485 * Enable/Disable hardware filtering by an Ethernet device of received
1486 * VLAN packets tagged with a given VLAN Tag Identifier.
1489 * The port identifier of the Ethernet device.
1491 * The VLAN Tag Identifier whose filtering must be enabled or disabled.
1493 * If > 0, enable VLAN filtering of VLAN packets tagged with *vlan_id*.
1494 * Otherwise, disable VLAN filtering of VLAN packets tagged with *vlan_id*.
1496 * - (0) if successful.
1497 * - (-ENOSUP) if hardware-assisted VLAN filtering not configured.
1498 * - (-ENODEV) if *port_id* invalid.
1499 * - (-ENOSYS) if VLAN filtering on *port_id* disabled.
1500 * - (-EINVAL) if *vlan_id* > 4095.
1502 extern int rte_eth_dev_vlan_filter(uint8_t port_id, uint16_t vlan_id , int on);
1505 * Enable/Disable hardware VLAN Strip by a rx queue of an Ethernet device.
1506 * 82599/X540 can support VLAN stripping at the rx queue level
1509 * The port identifier of the Ethernet device.
1510 * @param rx_queue_id
1511 * The index of the receive queue for which a queue stats mapping is required.
1512 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
1513 * to rte_eth_dev_configure().
1515 * If 1, Enable VLAN Stripping of the receive queue of the Ethernet port.
1516 * If 0, Disable VLAN Stripping of the receive queue of the Ethernet port.
1518 * - (0) if successful.
1519 * - (-ENOSUP) if hardware-assisted VLAN stripping not configured.
1520 * - (-ENODEV) if *port_id* invalid.
1521 * - (-EINVAL) if *rx_queue_id* invalid.
1523 extern int rte_eth_dev_set_vlan_strip_on_queue(uint8_t port_id,
1524 uint16_t rx_queue_id, int on);
1527 * Set the Outer VLAN Ether Type by an Ethernet device, it can be inserted to
1528 * the VLAN Header. This is a register setup available on some Intel NIC, not
1529 * but all, please check the data sheet for availability.
1532 * The port identifier of the Ethernet device.
1534 * The Tag Protocol ID
1536 * - (0) if successful.
1537 * - (-ENOSUP) if hardware-assisted VLAN TPID setup is not supported.
1538 * - (-ENODEV) if *port_id* invalid.
1540 extern int rte_eth_dev_set_vlan_ether_type(uint8_t port_id, uint16_t tag_type);
1543 * Set VLAN offload configuration on an Ethernet device
1544 * Enable/Disable Extended VLAN by an Ethernet device, This is a register setup
1545 * available on some Intel NIC, not but all, please check the data sheet for
1547 * Enable/Disable VLAN Strip can be done on rx queue for certain NIC, but here
1548 * the configuration is applied on the port level.
1551 * The port identifier of the Ethernet device.
1552 * @param offload_mask
1553 * The VLAN Offload bit mask can be mixed use with "OR"
1554 * ETH_VLAN_STRIP_OFFLOAD
1555 * ETH_VLAN_FILTER_OFFLOAD
1556 * ETH_VLAN_EXTEND_OFFLOAD
1558 * - (0) if successful.
1559 * - (-ENOSUP) if hardware-assisted VLAN filtering not configured.
1560 * - (-ENODEV) if *port_id* invalid.
1562 extern int rte_eth_dev_set_vlan_offload(uint8_t port_id, int offload_mask);
1565 * Read VLAN Offload configuration from an Ethernet device
1568 * The port identifier of the Ethernet device.
1570 * - (>0) if successful. Bit mask to indicate
1571 * ETH_VLAN_STRIP_OFFLOAD
1572 * ETH_VLAN_FILTER_OFFLOAD
1573 * ETH_VLAN_EXTEND_OFFLOAD
1574 * - (-ENODEV) if *port_id* invalid.
1576 extern int rte_eth_dev_get_vlan_offload(uint8_t port_id);
1580 * Retrieve a burst of input packets from a receive queue of an Ethernet
1581 * device. The retrieved packets are stored in *rte_mbuf* structures whose
1582 * pointers are supplied in the *rx_pkts* array.
1584 * The rte_eth_rx_burst() function loops, parsing the RX ring of the
1585 * receive queue, up to *nb_pkts* packets, and for each completed RX
1586 * descriptor in the ring, it performs the following operations:
1588 * - Initialize the *rte_mbuf* data structure associated with the
1589 * RX descriptor according to the information provided by the NIC into
1590 * that RX descriptor.
1592 * - Store the *rte_mbuf* data structure into the next entry of the
1595 * - Replenish the RX descriptor with a new *rte_mbuf* buffer
1596 * allocated from the memory pool associated with the receive queue at
1597 * initialization time.
1599 * When retrieving an input packet that was scattered by the controller
1600 * into multiple receive descriptors, the rte_eth_rx_burst() function
1601 * appends the associated *rte_mbuf* buffers to the first buffer of the
1604 * The rte_eth_rx_burst() function returns the number of packets
1605 * actually retrieved, which is the number of *rte_mbuf* data structures
1606 * effectively supplied into the *rx_pkts* array.
1607 * A return value equal to *nb_pkts* indicates that the RX queue contained
1608 * at least *rx_pkts* packets, and this is likely to signify that other
1609 * received packets remain in the input queue. Applications implementing
1610 * a "retrieve as much received packets as possible" policy can check this
1611 * specific case and keep invoking the rte_eth_rx_burst() function until
1612 * a value less than *nb_pkts* is returned.
1614 * This receive method has the following advantages:
1616 * - It allows a run-to-completion network stack engine to retrieve and
1617 * to immediately process received packets in a fast burst-oriented
1618 * approach, avoiding the overhead of unnecessary intermediate packet
1619 * queue/dequeue operations.
1621 * - Conversely, it also allows an asynchronous-oriented processing
1622 * method to retrieve bursts of received packets and to immediately
1623 * queue them for further parallel processing by another logical core,
1624 * for instance. However, instead of having received packets being
1625 * individually queued by the driver, this approach allows the invoker
1626 * of the rte_eth_rx_burst() function to queue a burst of retrieved
1627 * packets at a time and therefore dramatically reduce the cost of
1628 * enqueue/dequeue operations per packet.
1630 * - It allows the rte_eth_rx_burst() function of the driver to take
1631 * advantage of burst-oriented hardware features (CPU cache,
1632 * prefetch instructions, and so on) to minimize the number of CPU
1633 * cycles per packet.
1635 * To summarize, the proposed receive API enables many
1636 * burst-oriented optimizations in both synchronous and asynchronous
1637 * packet processing environments with no overhead in both cases.
1639 * The rte_eth_rx_burst() function does not provide any error
1640 * notification to avoid the corresponding overhead. As a hint, the
1641 * upper-level application might check the status of the device link once
1642 * being systematically returned a 0 value for a given number of tries.
1645 * The port identifier of the Ethernet device.
1647 * The index of the receive queue from which to retrieve input packets.
1648 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
1649 * to rte_eth_dev_configure().
1651 * The address of an array of pointers to *rte_mbuf* structures that
1652 * must be large enough to store *nb_pkts* pointers in it.
1654 * The maximum number of packets to retrieve.
1656 * The number of packets actually retrieved, which is the number
1657 * of pointers to *rte_mbuf* structures effectively supplied to the
1660 #ifdef RTE_LIBRTE_ETHDEV_DEBUG
1661 extern uint16_t rte_eth_rx_burst(uint8_t port_id, uint16_t queue_id,
1662 struct rte_mbuf **rx_pkts, uint16_t nb_pkts);
1664 static inline uint16_t
1665 rte_eth_rx_burst(uint8_t port_id, uint16_t queue_id,
1666 struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
1668 struct rte_eth_dev *dev;
1670 dev = &rte_eth_devices[port_id];
1671 return (*dev->rx_pkt_burst)(dev->data->rx_queues[queue_id], rx_pkts, nb_pkts);
1676 * Send a burst of output packets on a transmit queue of an Ethernet device.
1678 * The rte_eth_tx_burst() function is invoked to transmit output packets
1679 * on the output queue *queue_id* of the Ethernet device designated by its
1681 * The *nb_pkts* parameter is the number of packets to send which are
1682 * supplied in the *tx_pkts* array of *rte_mbuf* structures.
1683 * The rte_eth_tx_burst() function loops, sending *nb_pkts* packets,
1684 * up to the number of transmit descriptors available in the TX ring of the
1686 * For each packet to send, the rte_eth_tx_burst() function performs
1687 * the following operations:
1689 * - Pick up the next available descriptor in the transmit ring.
1691 * - Free the network buffer previously sent with that descriptor, if any.
1693 * - Initialize the transmit descriptor with the information provided
1694 * in the *rte_mbuf data structure.
1696 * In the case of a segmented packet composed of a list of *rte_mbuf* buffers,
1697 * the rte_eth_tx_burst() function uses several transmit descriptors
1700 * The rte_eth_tx_burst() function returns the number of packets it
1701 * actually sent. A return value equal to *nb_pkts* means that all packets
1702 * have been sent, and this is likely to signify that other output packets
1703 * could be immediately transmitted again. Applications that implement a
1704 * "send as many packets to transmit as possible" policy can check this
1705 * specific case and keep invoking the rte_eth_tx_burst() function until
1706 * a value less than *nb_pkts* is returned.
1708 * It is the responsibility of the rte_eth_tx_burst() function to
1709 * transparently free the memory buffers of packets previously sent.
1710 * This feature is driven by the *tx_free_thresh* value supplied to the
1711 * rte_eth_dev_configure() function at device configuration time.
1712 * When the number of previously sent packets reached the "minimum transmit
1713 * packets to free" threshold, the rte_eth_tx_burst() function must
1714 * [attempt to] free the *rte_mbuf* buffers of those packets whose
1715 * transmission was effectively completed.
1718 * The port identifier of the Ethernet device.
1720 * The index of the transmit queue through which output packets must be
1722 * The value must be in the range [0, nb_tx_queue - 1] previously supplied
1723 * to rte_eth_dev_configure().
1725 * The address of an array of *nb_pkts* pointers to *rte_mbuf* structures
1726 * which contain the output packets.
1728 * The maximum number of packets to transmit.
1730 * The number of output packets actually stored in transmit descriptors of
1731 * the transmit ring. The return value can be less than the value of the
1732 * *tx_pkts* parameter when the transmit ring is full or has been filled up.
1734 #ifdef RTE_LIBRTE_ETHDEV_DEBUG
1735 extern uint16_t rte_eth_tx_burst(uint8_t port_id, uint16_t queue_id,
1736 struct rte_mbuf **tx_pkts, uint16_t nb_pkts);
1738 static inline uint16_t
1739 rte_eth_tx_burst(uint8_t port_id, uint16_t queue_id,
1740 struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
1742 struct rte_eth_dev *dev;
1744 dev = &rte_eth_devices[port_id];
1745 return (*dev->tx_pkt_burst)(dev->data->tx_queues[queue_id], tx_pkts, nb_pkts);
1750 * Setup a new signature filter rule on an Ethernet device
1753 * The port identifier of the Ethernet device.
1754 * @param fdir_filter
1755 * The pointer to the fdir filter structure describing the signature filter
1757 * The *rte_fdir_filter* structure includes the values of the different fields
1758 * to match: source and destination IP addresses, vlan id, flexbytes, source
1759 * and destination ports, and so on.
1761 * The index of the RX queue where to store RX packets matching the added
1762 * signature filter defined in fdir_filter.
1764 * - (0) if successful.
1765 * - (-ENOTSUP) if hardware doesn't support flow director mode.
1766 * - (-ENODEV) if *port_id* invalid.
1767 * - (-ENOSYS) if the FDIR mode is not configured in signature mode
1769 * - (-EINVAL) if the fdir_filter information is not correct.
1771 int rte_eth_dev_fdir_add_signature_filter(uint8_t port_id,
1772 struct rte_fdir_filter *fdir_filter,
1776 * Update a signature filter rule on an Ethernet device.
1777 * If the rule doesn't exits, it is created.
1780 * The port identifier of the Ethernet device.
1782 * The pointer to the structure describing the signature filter rule.
1783 * The *rte_fdir_filter* structure includes the values of the different fields
1784 * to match: source and destination IP addresses, vlan id, flexbytes, source
1785 * and destination ports, and so on.
1787 * The index of the RX queue where to store RX packets matching the added
1788 * signature filter defined in fdir_ftr.
1790 * - (0) if successful.
1791 * - (-ENOTSUP) if hardware doesn't support flow director mode.
1792 * - (-ENODEV) if *port_id* invalid.
1793 * - (-ENOSYS) if the flow director mode is not configured in signature mode
1795 * - (-EINVAL) if the fdir_filter information is not correct.
1797 int rte_eth_dev_fdir_update_signature_filter(uint8_t port_id,
1798 struct rte_fdir_filter *fdir_ftr,
1802 * Remove a signature filter rule on an Ethernet device.
1805 * The port identifier of the Ethernet device.
1807 * The pointer to the structure describing the signature filter rule.
1808 * The *rte_fdir_filter* structure includes the values of the different fields
1809 * to match: source and destination IP addresses, vlan id, flexbytes, source
1810 * and destination ports, and so on.
1812 * - (0) if successful.
1813 * - (-ENOTSUP) if hardware doesn't support flow director mode.
1814 * - (-ENODEV) if *port_id* invalid.
1815 * - (-ENOSYS) if the flow director mode is not configured in signature mode
1817 * - (-EINVAL) if the fdir_filter information is not correct.
1819 int rte_eth_dev_fdir_remove_signature_filter(uint8_t port_id,
1820 struct rte_fdir_filter *fdir_ftr);
1823 * Retrieve the flow director information of an Ethernet device.
1826 * The port identifier of the Ethernet device.
1828 * A pointer to a structure of type *rte_eth_dev_fdir* to be filled with
1829 * the flow director information of the Ethernet device.
1831 * - (0) if successful.
1832 * - (-ENOTSUP) if hardware doesn't support flow director mode.
1833 * - (-ENODEV) if *port_id* invalid.
1834 * - (-ENOSYS) if the flow director mode is not configured on *port_id*.
1836 int rte_eth_dev_fdir_get_infos(uint8_t port_id, struct rte_eth_fdir *fdir);
1839 * Add a new perfect filter rule on an Ethernet device.
1842 * The port identifier of the Ethernet device.
1843 * @param fdir_filter
1844 * The pointer to the structure describing the perfect filter rule.
1845 * The *rte_fdir_filter* structure includes the values of the different fields
1846 * to match: source and destination IP addresses, vlan id, flexbytes, source
1847 * and destination ports, and so on.
1848 * IPv6 are not supported.
1850 * The 16-bit value supplied in the field hash.fdir.id of mbuf for RX
1851 * packets matching the perfect filter.
1853 * The index of the RX queue where to store RX packets matching the added
1854 * perfect filter defined in fdir_filter.
1856 * If drop is set to 1, matching RX packets are stored into the RX drop
1857 * queue defined in the rte_fdir_conf.
1859 * - (0) if successful.
1860 * - (-ENOTSUP) if hardware doesn't support flow director mode.
1861 * - (-ENODEV) if *port_id* invalid.
1862 * - (-ENOSYS) if the flow director mode is not configured in perfect mode
1864 * - (-EINVAL) if the fdir_filter information is not correct.
1866 int rte_eth_dev_fdir_add_perfect_filter(uint8_t port_id,
1867 struct rte_fdir_filter *fdir_filter,
1868 uint16_t soft_id, uint8_t rx_queue,
1872 * Update a perfect filter rule on an Ethernet device.
1873 * If the rule doesn't exits, it is created.
1876 * The port identifier of the Ethernet device.
1877 * @param fdir_filter
1878 * The pointer to the structure describing the perfect filter rule.
1879 * The *rte_fdir_filter* structure includes the values of the different fields
1880 * to match: source and destination IP addresses, vlan id, flexbytes, source
1881 * and destination ports, and so on.
1882 * IPv6 are not supported.
1884 * The 16-bit value supplied in the field hash.fdir.id of mbuf for RX
1885 * packets matching the perfect filter.
1887 * The index of the RX queue where to store RX packets matching the added
1888 * perfect filter defined in fdir_filter.
1890 * If drop is set to 1, matching RX packets are stored into the RX drop
1891 * queue defined in the rte_fdir_conf.
1893 * - (0) if successful.
1894 * - (-ENOTSUP) if hardware doesn't support flow director mode.
1895 * - (-ENODEV) if *port_id* invalid.
1896 * - (-ENOSYS) if the flow director mode is not configured in perfect mode
1898 * - (-EINVAL) if the fdir_filter information is not correct.
1900 int rte_eth_dev_fdir_update_perfect_filter(uint8_t port_id,
1901 struct rte_fdir_filter *fdir_filter,
1902 uint16_t soft_id, uint8_t rx_queue,
1906 * Remove a perfect filter rule on an Ethernet device.
1909 * The port identifier of the Ethernet device.
1910 * @param fdir_filter
1911 * The pointer to the structure describing the perfect filter rule.
1912 * The *rte_fdir_filter* structure includes the values of the different fields
1913 * to match: source and destination IP addresses, vlan id, flexbytes, source
1914 * and destination ports, and so on.
1915 * IPv6 are not supported.
1917 * The soft_id value provided when adding/updating the removed filter.
1919 * - (0) if successful.
1920 * - (-ENOTSUP) if hardware doesn't support flow director mode.
1921 * - (-ENODEV) if *port_id* invalid.
1922 * - (-ENOSYS) if the flow director mode is not configured in perfect mode
1924 * - (-EINVAL) if the fdir_filter information is not correct.
1926 int rte_eth_dev_fdir_remove_perfect_filter(uint8_t port_id,
1927 struct rte_fdir_filter *fdir_filter,
1930 * Configure globally the masks for flow director mode for an Ethernet device.
1931 * For example, the device can match packets with only the first 24 bits of
1932 * the IPv4 source address.
1934 * The following fields can be masked: IPv4 addresses and L4 port numbers.
1935 * The following fields can be either enabled or disabled completely for the
1936 * matching functionality: VLAN ID tag; VLAN Priority + CFI bit; Flexible 2-byte
1938 * IPv6 masks are not supported.
1940 * All filters must comply with the masks previously configured.
1941 * For example, with a mask equal to 255.255.255.0 for the source IPv4 address,
1942 * all IPv4 filters must be created with a source IPv4 address that fits the
1945 * This function flushes all filters that have been previously added in
1949 * The port identifier of the Ethernet device.
1951 * The pointer to the fdir mask structure describing relevant headers fields
1952 * and relevant bits to use when matching packets addresses and ports.
1953 * IPv6 masks are not supported.
1955 * - (0) if successful.
1956 * - (-ENOTSUP) if hardware doesn't support flow director mode.
1957 * - (-ENODEV) if *port_id* invalid.
1958 * - (-ENOSYS) if the flow director mode is not configured in perfect
1959 * mode on *port_id*.
1960 * - (-EINVAL) if the fdir_filter information is not correct
1962 int rte_eth_dev_fdir_set_masks(uint8_t port_id,
1963 struct rte_fdir_masks *fdir_mask);
1966 * The eth device event type for interrupt, and maybe others in the future.
1968 enum rte_eth_event_type {
1969 RTE_ETH_EVENT_UNKNOWN, /**< unknown event type */
1970 RTE_ETH_EVENT_INTR_LSC, /**< lsc interrupt event */
1971 RTE_ETH_EVENT_MAX /**< max value of this enum */
1974 typedef void (*rte_eth_dev_cb_fn)(uint8_t port_id, \
1975 enum rte_eth_event_type event, void *cb_arg);
1976 /**< user application callback to be registered for interrupts */
1981 * Register a callback function for specific port id.
1988 * User supplied callback function to be called.
1990 * Pointer to the parameters for the registered callback.
1993 * - On success, zero.
1994 * - On failure, a negative value.
1996 int rte_eth_dev_callback_register(uint8_t port_id,
1997 enum rte_eth_event_type event,
1998 rte_eth_dev_cb_fn cb_fn, void *cb_arg);
2001 * Unregister a callback function for specific port id.
2008 * User supplied callback function to be called.
2010 * Pointer to the parameters for the registered callback. -1 means to
2011 * remove all for the same callback address and same event.
2014 * - On success, zero.
2015 * - On failure, a negative value.
2017 int rte_eth_dev_callback_unregister(uint8_t port_id,
2018 enum rte_eth_event_type event,
2019 rte_eth_dev_cb_fn cb_fn, void *cb_arg);
2022 * @internal Executes all the user application registered callbacks for
2023 * the specific device. It is for DPDK internal user only. User
2024 * application should not call it directly.
2027 * Pointer to struct rte_eth_dev.
2029 * Eth device interrupt event type.
2034 void _rte_eth_dev_callback_process(struct rte_eth_dev *dev,
2035 enum rte_eth_event_type event);
2038 * Turn on the LED on the Ethernet device.
2039 * This function turns on the LED on the Ethernet device.
2042 * The port identifier of the Ethernet device.
2044 * - (0) if successful.
2045 * - (-ENOTSUP) if underlying hardware OR driver doesn't support
2047 * - (-ENODEV) if *port_id* invalid.
2049 int rte_eth_led_on(uint8_t port_id);
2052 * Turn off the LED on the Ethernet device.
2053 * This function turns off the LED on the Ethernet device.
2056 * The port identifier of the Ethernet device.
2058 * - (0) if successful.
2059 * - (-ENOTSUP) if underlying hardware OR driver doesn't support
2061 * - (-ENODEV) if *port_id* invalid.
2063 int rte_eth_led_off(uint8_t port_id);
2066 * Configure the Ethernet link flow control for Ethernet device
2069 * The port identifier of the Ethernet device.
2071 * The pointer to the structure of the flow control parameters.
2073 * - (0) if successful.
2074 * - (-ENOTSUP) if hardware doesn't support flow control mode.
2075 * - (-ENODEV) if *port_id* invalid.
2076 * - (-EINVAL) if bad parameter
2077 * - (-EIO) if flow control setup failure
2079 int rte_eth_dev_flow_ctrl_set(uint8_t port_id,
2080 struct rte_eth_fc_conf *fc_conf);
2083 * Configure the Ethernet priority flow control under DCB environment
2084 * for Ethernet device.
2087 * The port identifier of the Ethernet device.
2089 * The pointer to the structure of the priority flow control parameters.
2091 * - (0) if successful.
2092 * - (-ENOTSUP) if hardware doesn't support priority flow control mode.
2093 * - (-ENODEV) if *port_id* invalid.
2094 * - (-EINVAL) if bad parameter
2095 * - (-EIO) if flow control setup failure
2097 int rte_eth_dev_priority_flow_ctrl_set(uint8_t port_id,
2098 struct rte_eth_pfc_conf *pfc_conf);
2101 * Add a MAC address to an internal array of addresses used to enable whitelist
2102 * filtering to accept packets only if the destination MAC address matches.
2105 * The port identifier of the Ethernet device.
2107 * The MAC address to add.
2109 * VMDq pool index to associate address with (if VMDq is enabled). If VMDq is
2110 * not enabled, this should be set to 0.
2112 * - (0) if successfully added or *mac_addr" was already added.
2113 * - (-ENOTSUP) if hardware doesn't support this feature.
2114 * - (-ENODEV) if *port* is invalid.
2115 * - (-ENOSPC) if no more MAC addresses can be added.
2116 * - (-EINVAL) if MAC address is invalid.
2118 int rte_eth_dev_mac_addr_add(uint8_t port, struct ether_addr *mac_addr,
2122 * Remove a MAC address from the internal array of addresses.
2125 * The port identifier of the Ethernet device.
2127 * MAC address to remove.
2129 * - (0) if successful, or *mac_addr* didn't exist.
2130 * - (-ENOTSUP) if hardware doesn't support.
2131 * - (-ENODEV) if *port* invalid.
2132 * - (-EADDRINUSE) if attempting to remove the default MAC address
2134 int rte_eth_dev_mac_addr_remove(uint8_t port, struct ether_addr *mac_addr);
2137 * Update Redirection Table(RETA) of Receive Side Scaling of Ethernet device.
2140 * The port identifier of the Ethernet device.
2144 * - (0) if successful.
2145 * - (-ENOTSUP) if hardware doesn't support.
2146 * - (-EINVAL) if bad parameter.
2148 int rte_eth_dev_rss_reta_update(uint8_t port,
2149 struct rte_eth_rss_reta *reta_conf);
2152 * Query Redirection Table(RETA) of Receive Side Scaling of Ethernet device.
2155 * The port identifier of the Ethernet device.
2159 * - (0) if successful.
2160 * - (-ENOTSUP) if hardware doesn't support.
2161 * - (-EINVAL) if bad parameter.
2163 int rte_eth_dev_rss_reta_query(uint8_t port,
2164 struct rte_eth_rss_reta *reta_conf);
2170 #endif /* _RTE_ETHDEV_H_ */