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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_8_POOLS = 8, /**< 8 pools with DCB. */
360 ETH_16_POOLS = 16, /**< 16 pools with DCB. */
361 ETH_32_POOLS = 32, /**< 32 pools with DCB. */
362 ETH_64_POOLS = 64 /**< 32 pools with DCB. */
365 /* This structure may be extended in future. */
366 struct rte_eth_dcb_rx_conf {
367 enum rte_eth_nb_tcs nb_tcs; /**< Possible DCB TCs, 4 or 8 TCs */
368 uint8_t dcb_queue[ETH_DCB_NUM_USER_PRIORITIES];
369 /**< Possible DCB queue,4 or 8. */
372 struct rte_eth_vmdq_dcb_tx_conf {
373 enum rte_eth_nb_pools nb_queue_pools; /**< With DCB, 16 or 32 pools. */
374 uint8_t dcb_queue[ETH_DCB_NUM_USER_PRIORITIES];
375 /**< Possible DCB queue,4 or 8. */
378 struct rte_eth_dcb_tx_conf {
379 enum rte_eth_nb_tcs nb_tcs; /**< possible DCB TCs, 4 or 8 TCs. */
380 uint8_t dcb_queue[ETH_DCB_NUM_USER_PRIORITIES];
381 /**< Possible DCB queue,4 or 8. */
385 * A structure used to configure the VMDQ+DCB feature
386 * of an Ethernet port.
388 * Using this feature, packets are routed to a pool of queues, based
389 * on the vlan id in the vlan tag, and then to a specific queue within
390 * that pool, using the user priority vlan tag field.
392 * A default pool may be used, if desired, to route all traffic which
393 * does not match the vlan filter rules.
395 struct rte_eth_vmdq_dcb_conf {
396 enum rte_eth_nb_pools nb_queue_pools; /**< With DCB, 16 or 32 pools */
397 uint8_t enable_default_pool; /**< If non-zero, use a default pool */
398 uint8_t default_pool; /**< The default pool, if applicable */
399 uint8_t nb_pool_maps; /**< We can have up to 64 filters/mappings */
401 uint16_t vlan_id; /**< The vlan id of the received frame */
402 uint64_t pools; /**< Bitmask of pools for packet rx */
403 } pool_map[ETH_VMDQ_MAX_VLAN_FILTERS]; /**< VMDq vlan pool maps. */
404 uint8_t dcb_queue[ETH_DCB_NUM_USER_PRIORITIES];
405 /**< Selects a queue in a pool */
409 * A structure used to configure the TX features of an Ethernet port.
411 struct rte_eth_txmode {
412 enum rte_eth_tx_mq_mode mq_mode; /**< TX multi-queues mode. */
416 * A structure used to configure an RX ring of an Ethernet port.
418 struct rte_eth_rxconf {
419 struct rte_eth_thresh rx_thresh; /**< RX ring threshold registers. */
420 uint16_t rx_free_thresh; /**< Drives the freeing of RX descriptors. */
421 uint8_t rx_drop_en; /**< Drop packets if no descriptors are available. */
424 #define ETH_TXQ_FLAGS_NOMULTSEGS 0x0001 /**< nb_segs=1 for all mbufs */
425 #define ETH_TXQ_FLAGS_NOREFCOUNT 0x0002 /**< refcnt can be ignored */
426 #define ETH_TXQ_FLAGS_NOMULTMEMP 0x0004 /**< all bufs come from same mempool */
427 #define ETH_TXQ_FLAGS_NOVLANOFFL 0x0100 /**< disable VLAN offload */
428 #define ETH_TXQ_FLAGS_NOXSUMSCTP 0x0200 /**< disable SCTP checksum offload */
429 #define ETH_TXQ_FLAGS_NOXSUMUDP 0x0400 /**< disable UDP checksum offload */
430 #define ETH_TXQ_FLAGS_NOXSUMTCP 0x0800 /**< disable TCP checksum offload */
431 #define ETH_TXQ_FLAGS_NOOFFLOADS \
432 (ETH_TXQ_FLAGS_NOVLANOFFL | ETH_TXQ_FLAGS_NOXSUMSCTP | \
433 ETH_TXQ_FLAGS_NOXSUMUDP | ETH_TXQ_FLAGS_NOXSUMTCP)
435 * A structure used to configure a TX ring of an Ethernet port.
437 struct rte_eth_txconf {
438 struct rte_eth_thresh tx_thresh; /**< TX ring threshold registers. */
439 uint16_t tx_rs_thresh; /**< Drives the setting of RS bit on TXDs. */
440 uint16_t tx_free_thresh; /**< Drives the freeing of TX buffers. */
441 uint32_t txq_flags; /**< Set flags for the Tx queue */
445 * This enum indicates the flow control mode
447 enum rte_eth_fc_mode {
448 RTE_FC_NONE = 0, /**< Disable flow control. */
449 RTE_FC_RX_PAUSE, /**< RX pause frame, enable flowctrl on TX side. */
450 RTE_FC_TX_PAUSE, /**< TX pause frame, enable flowctrl on RX side. */
451 RTE_FC_FULL /**< Enable flow control on both side. */
455 * A structure used to configure Ethernet flow control parameter.
456 * These parameters will be configured into the register of the NIC.
457 * Please refer to the corresponding data sheet for proper value.
459 struct rte_eth_fc_conf {
460 uint32_t high_water; /**< High threshold value to trigger XOFF */
461 uint32_t low_water; /**< Low threshold value to trigger XON */
462 uint16_t pause_time; /**< Pause quota in the Pause frame */
463 uint16_t send_xon; /**< Is XON frame need be sent */
464 enum rte_eth_fc_mode mode; /**< Link flow control mode */
468 * A structure used to configure Ethernet priority flow control parameter.
469 * These parameters will be configured into the register of the NIC.
470 * Please refer to the corresponding data sheet for proper value.
472 struct rte_eth_pfc_conf {
473 struct rte_eth_fc_conf fc; /**< General flow control parameter. */
474 uint8_t priority; /**< VLAN User Priority. */
478 * Flow Director setting modes: none (default), signature or perfect.
481 RTE_FDIR_MODE_NONE = 0, /**< Disable FDIR support. */
482 RTE_FDIR_MODE_SIGNATURE, /**< Enable FDIR signature filter mode. */
483 RTE_FDIR_MODE_PERFECT, /**< Enable FDIR perfect filter mode. */
487 * Memory space that can be configured to store Flow Director filters
488 * in the board memory.
490 enum rte_fdir_pballoc_type {
491 RTE_FDIR_PBALLOC_64K = 0, /**< 64k. */
492 RTE_FDIR_PBALLOC_128K, /**< 128k. */
493 RTE_FDIR_PBALLOC_256K, /**< 256k. */
497 * Select report mode of FDIR hash information in RX descriptors.
499 enum rte_fdir_status_mode {
500 RTE_FDIR_NO_REPORT_STATUS = 0, /**< Never report FDIR hash. */
501 RTE_FDIR_REPORT_STATUS, /**< Only report FDIR hash for matching pkts. */
502 RTE_FDIR_REPORT_STATUS_ALWAYS, /**< Always report FDIR hash. */
506 * A structure used to configure the Flow Director (FDIR) feature
507 * of an Ethernet port.
509 * If mode is RTE_FDIR_DISABLE, the pballoc value is ignored.
511 struct rte_fdir_conf {
512 enum rte_fdir_mode mode; /**< Flow Director mode. */
513 enum rte_fdir_pballoc_type pballoc; /**< Space for FDIR filters. */
514 enum rte_fdir_status_mode status; /**< How to report FDIR hash. */
515 /** Offset of flexbytes field in RX packets (in 16-bit word units). */
516 uint8_t flexbytes_offset;
517 /** RX queue of packets matching a "drop" filter in perfect mode. */
522 * Possible l4type of FDIR filters.
525 RTE_FDIR_L4TYPE_NONE = 0, /**< None. */
526 RTE_FDIR_L4TYPE_UDP, /**< UDP. */
527 RTE_FDIR_L4TYPE_TCP, /**< TCP. */
528 RTE_FDIR_L4TYPE_SCTP, /**< SCTP. */
532 * Select IPv4 or IPv6 FDIR filters.
535 RTE_FDIR_IPTYPE_IPV4 = 0, /**< IPv4. */
536 RTE_FDIR_IPTYPE_IPV6 , /**< IPv6. */
540 * A structure used to define a FDIR packet filter.
542 struct rte_fdir_filter {
543 uint16_t flex_bytes; /**< Flex bytes value to match. */
544 uint16_t vlan_id; /**< VLAN ID value to match, 0 otherwise. */
545 uint16_t port_src; /**< Source port to match, 0 otherwise. */
546 uint16_t port_dst; /**< Destination port to match, 0 otherwise. */
548 uint32_t ipv4_addr; /**< IPv4 source address to match. */
549 uint32_t ipv6_addr[4]; /**< IPv6 source address to match. */
550 } ip_src; /**< IPv4/IPv6 source address to match (union of above). */
552 uint32_t ipv4_addr; /**< IPv4 destination address to match. */
553 uint32_t ipv6_addr[4]; /**< IPv6 destination address to match */
554 } ip_dst; /**< IPv4/IPv6 destination address to match (union of above). */
555 enum rte_l4type l4type; /**< l4type to match: NONE/UDP/TCP/SCTP. */
556 enum rte_iptype iptype; /**< IP packet type to match: IPv4 or IPv6. */
560 * A structure used to configure FDIR masks that are used by the device
561 * to match the various fields of RX packet headers.
562 * @note The only_ip_flow field has the opposite meaning compared to other
565 struct rte_fdir_masks {
566 /** When set to 1, packet l4type is \b NOT relevant in filters, and
567 source and destination port masks must be set to zero. */
568 uint8_t only_ip_flow;
569 /** If set to 1, vlan_id is relevant in filters. */
571 /** If set to 1, vlan_prio is relevant in filters. */
573 /** If set to 1, flexbytes is relevant in filters. */
575 /** If set to 1, set the IPv6 masks. Otherwise set the IPv4 masks. */
576 uint8_t set_ipv6_mask;
577 /** When set to 1, comparison of destination IPv6 address with IP6AT
578 registers is meaningful. */
579 uint8_t comp_ipv6_dst;
580 /** Mask of Destination IPv4 Address. All bits set to 1 define the
581 relevant bits to use in the destination address of an IPv4 packet
582 when matching it against FDIR filters. */
583 uint32_t dst_ipv4_mask;
584 /** Mask of Source IPv4 Address. All bits set to 1 define
585 the relevant bits to use in the source address of an IPv4 packet
586 when matching it against FDIR filters. */
587 uint32_t src_ipv4_mask;
588 /** Mask of Source IPv6 Address. All bits set to 1 define the
589 relevant BYTES to use in the source address of an IPv6 packet
590 when matching it against FDIR filters. */
591 uint16_t dst_ipv6_mask;
592 /** Mask of Destination IPv6 Address. All bits set to 1 define the
593 relevant BYTES to use in the destination address of an IPv6 packet
594 when matching it against FDIR filters. */
595 uint16_t src_ipv6_mask;
596 /** Mask of Source Port. All bits set to 1 define the relevant
597 bits to use in the source port of an IP packets when matching it
598 against FDIR filters. */
599 uint16_t src_port_mask;
600 /** Mask of Destination Port. All bits set to 1 define the relevant
601 bits to use in the destination port of an IP packet when matching it
602 against FDIR filters. */
603 uint16_t dst_port_mask;
607 * A structure used to report the status of the flow director filters in use.
609 struct rte_eth_fdir {
610 /** Number of filters with collision indication. */
612 /** Number of free (non programmed) filters. */
614 /** The Lookup hash value of the added filter that updated the value
615 of the MAXLEN field */
617 /** Longest linked list of filters in the table. */
619 /** Number of added filters. */
621 /** Number of removed filters. */
623 /** Number of failed added filters (no more space in device). */
625 /** Number of failed removed filters. */
630 * A structure used to enable/disable specific device interrupts.
632 struct rte_intr_conf {
633 /** enable/disable lsc interrupt. 0 (default) - disable, 1 enable */
638 * A structure used to configure an Ethernet port.
639 * Depending upon the RX multi-queue mode, extra advanced
640 * configuration settings may be needed.
642 struct rte_eth_conf {
644 /**< ETH_LINK_SPEED_10[0|00|000], or 0 for autonegotation */
645 uint16_t link_duplex;
646 /**< ETH_LINK_[HALF_DUPLEX|FULL_DUPLEX], or 0 for autonegotation */
647 struct rte_eth_rxmode rxmode; /**< Port RX configuration. */
648 struct rte_eth_txmode txmode; /**< Port TX configuration. */
650 struct rte_eth_rss_conf rss_conf; /**< Port RSS configuration */
651 struct rte_eth_vmdq_dcb_conf vmdq_dcb_conf;
652 /**< Port vmdq+dcb configuration. */
653 struct rte_eth_dcb_rx_conf dcb_rx_conf;
654 /**< Port dcb RX configuration. */
655 } rx_adv_conf; /**< Port RX filtering configuration (union). */
657 struct rte_eth_vmdq_dcb_tx_conf vmdq_dcb_tx_conf;
658 /**< Port vmdq+dcb TX configuration. */
659 struct rte_eth_dcb_tx_conf dcb_tx_conf;
660 /**< Port dcb TX configuration. */
661 } tx_adv_conf; /**< Port TX DCB configuration (union). */
662 /** Currently,Priority Flow Control(PFC) are supported,if DCB with PFC
663 is needed,and the variable must be set ETH_DCB_PFC_SUPPORT. */
664 uint32_t dcb_capability_en;
665 struct rte_fdir_conf fdir_conf; /**< FDIR configuration. */
666 struct rte_intr_conf intr_conf; /**< Interrupt mode configuration. */
670 * A structure used to retrieve the contextual information of
671 * an Ethernet device, such as the controlling driver of the device,
672 * its PCI context, etc...
674 struct rte_eth_dev_info {
675 struct rte_pci_device *pci_dev; /**< Device PCI information. */
676 const char *driver_name; /**< Device Driver name. */
677 uint32_t min_rx_bufsize; /**< Minimum size of RX buffer. */
678 uint32_t max_rx_pktlen; /**< Maximum configurable length of RX pkt. */
679 uint16_t max_rx_queues; /**< Maximum number of RX queues. */
680 uint16_t max_tx_queues; /**< Maximum number of TX queues. */
681 uint32_t max_mac_addrs; /**< Maximum number of MAC addresses. */
686 struct rte_eth_dev_callback;
687 /** @internal Structure to keep track of registered callbacks */
688 TAILQ_HEAD(rte_eth_dev_cb_list, rte_eth_dev_callback);
691 * Definitions of all functions exported by an Ethernet driver through the
692 * the generic structure of type *eth_dev_ops* supplied in the *rte_eth_dev*
693 * structure associated with an Ethernet device.
696 typedef int (*eth_dev_configure_t)(struct rte_eth_dev *dev);
697 /**< @internal Ethernet device configuration. */
699 typedef int (*eth_dev_start_t)(struct rte_eth_dev *dev);
700 /**< @internal Function used to start a configured Ethernet device. */
702 typedef void (*eth_dev_stop_t)(struct rte_eth_dev *dev);
703 /**< @internal Function used to stop a configured Ethernet device. */
705 typedef void (*eth_dev_close_t)(struct rte_eth_dev *dev);
706 /**< @internal Function used to close a configured Ethernet device. */
708 typedef void (*eth_promiscuous_enable_t)(struct rte_eth_dev *dev);
709 /**< @internal Function used to enable the RX promiscuous mode of an Ethernet device. */
711 typedef void (*eth_promiscuous_disable_t)(struct rte_eth_dev *dev);
712 /**< @internal Function used to disable the RX promiscuous mode of an Ethernet device. */
714 typedef void (*eth_allmulticast_enable_t)(struct rte_eth_dev *dev);
715 /**< @internal Enable the receipt of all multicast packets by an Ethernet device. */
717 typedef void (*eth_allmulticast_disable_t)(struct rte_eth_dev *dev);
718 /**< @internal Disable the receipt of all multicast packets by an Ethernet device. */
720 typedef int (*eth_link_update_t)(struct rte_eth_dev *dev,
721 int wait_to_complete);
722 /**< @internal Get link speed, duplex mode and state (up/down) of an Ethernet device. */
724 typedef void (*eth_stats_get_t)(struct rte_eth_dev *dev,
725 struct rte_eth_stats *igb_stats);
726 /**< @internal Get global I/O statistics of an Ethernet device. */
728 typedef void (*eth_stats_reset_t)(struct rte_eth_dev *dev);
729 /**< @internal Reset global I/O statistics of an Ethernet device to 0. */
731 typedef int (*eth_queue_stats_mapping_set_t)(struct rte_eth_dev *dev,
735 /**< @internal Set a queue statistics mapping for a tx/rx queue of an Ethernet device. */
737 typedef void (*eth_dev_infos_get_t)(struct rte_eth_dev *dev,
738 struct rte_eth_dev_info *dev_info);
739 /**< @internal Get specific informations of an Ethernet device. */
741 typedef int (*eth_rx_queue_setup_t)(struct rte_eth_dev *dev,
742 uint16_t rx_queue_id,
744 unsigned int socket_id,
745 const struct rte_eth_rxconf *rx_conf,
746 struct rte_mempool *mb_pool);
747 /**< @internal Set up a receive queue of an Ethernet device. */
749 typedef int (*eth_tx_queue_setup_t)(struct rte_eth_dev *dev,
750 uint16_t tx_queue_id,
752 unsigned int socket_id,
753 const struct rte_eth_txconf *tx_conf);
754 /**< @internal Setup a transmit queue of an Ethernet device. */
756 typedef void (*eth_queue_release_t)(void *queue);
757 /**< @internal Release memory resources allocated by given RX/TX queue. */
759 typedef uint32_t (*eth_rx_queue_count_t)(struct rte_eth_dev *dev,
760 uint16_t rx_queue_id);
761 /**< Get number of available descriptors on a receive queue of an Ethernet device. */
763 typedef int (*vlan_filter_set_t)(struct rte_eth_dev *dev,
766 /**< @internal filtering of a VLAN Tag Identifier by an Ethernet device. */
768 typedef void (*vlan_tpid_set_t)(struct rte_eth_dev *dev,
770 /**< @internal set the outer VLAN-TPID by an Ethernet device. */
772 typedef void (*vlan_offload_set_t)(struct rte_eth_dev *dev, int mask);
773 /**< @internal set VLAN offload function by an Ethernet device. */
775 typedef void (*vlan_strip_queue_set_t)(struct rte_eth_dev *dev,
776 uint16_t rx_queue_id,
778 /**< @internal VLAN stripping enable/disable by an queue of Ethernet device. */
780 typedef uint16_t (*eth_rx_burst_t)(void *rxq,
781 struct rte_mbuf **rx_pkts,
783 /**< @internal Retrieve input packets from a receive queue of an Ethernet device. */
785 typedef uint16_t (*eth_tx_burst_t)(void *txq,
786 struct rte_mbuf **tx_pkts,
788 /**< @internal Send output packets on a transmit queue of an Ethernet device. */
790 typedef int (*fdir_add_signature_filter_t)(struct rte_eth_dev *dev,
791 struct rte_fdir_filter *fdir_ftr,
793 /**< @internal Setup a new signature filter rule on an Ethernet device */
795 typedef int (*fdir_update_signature_filter_t)(struct rte_eth_dev *dev,
796 struct rte_fdir_filter *fdir_ftr,
798 /**< @internal Update a signature filter rule on an Ethernet device */
800 typedef int (*fdir_remove_signature_filter_t)(struct rte_eth_dev *dev,
801 struct rte_fdir_filter *fdir_ftr);
802 /**< @internal Remove a signature filter rule on an Ethernet device */
804 typedef void (*fdir_infos_get_t)(struct rte_eth_dev *dev,
805 struct rte_eth_fdir *fdir);
806 /**< @internal Get information about fdir status */
808 typedef int (*fdir_add_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 Setup a new perfect filter rule on an Ethernet device */
814 typedef int (*fdir_update_perfect_filter_t)(struct rte_eth_dev *dev,
815 struct rte_fdir_filter *fdir_ftr,
816 uint16_t soft_id, uint8_t rx_queue,
818 /**< @internal Update a perfect filter rule on an Ethernet device */
820 typedef int (*fdir_remove_perfect_filter_t)(struct rte_eth_dev *dev,
821 struct rte_fdir_filter *fdir_ftr,
823 /**< @internal Remove a perfect filter rule on an Ethernet device */
825 typedef int (*fdir_set_masks_t)(struct rte_eth_dev *dev,
826 struct rte_fdir_masks *fdir_masks);
827 /**< @internal Setup flow director masks on an Ethernet device */
829 typedef int (*flow_ctrl_set_t)(struct rte_eth_dev *dev,
830 struct rte_eth_fc_conf *fc_conf);
831 /**< @internal Setup flow control parameter on an Ethernet device */
833 typedef int (*priority_flow_ctrl_set_t)(struct rte_eth_dev *dev,
834 struct rte_eth_pfc_conf *pfc_conf);
835 /**< @internal Setup priority flow control parameter on an Ethernet device */
837 typedef int (*reta_update_t)(struct rte_eth_dev *dev,
838 struct rte_eth_rss_reta *reta_conf);
839 /**< @internal Update RSS redirection table on an Ethernet device */
841 typedef int (*reta_query_t)(struct rte_eth_dev *dev,
842 struct rte_eth_rss_reta *reta_conf);
843 /**< @internal Query RSS redirection table on an Ethernet device */
845 typedef int (*eth_dev_led_on_t)(struct rte_eth_dev *dev);
846 /**< @internal Turn on SW controllable LED on an Ethernet device */
848 typedef int (*eth_dev_led_off_t)(struct rte_eth_dev *dev);
849 /**< @internal Turn off SW controllable LED on an Ethernet device */
851 typedef void (*eth_mac_addr_remove_t)(struct rte_eth_dev *dev, uint32_t index);
852 /**< @internal Remove MAC address from receive address register */
854 typedef void (*eth_mac_addr_add_t)(struct rte_eth_dev *dev,
855 struct ether_addr *mac_addr,
858 /**< @internal Set a MAC address into Receive Address Address Register */
861 * @internal A structure containing the functions exported by an Ethernet driver.
864 eth_dev_configure_t dev_configure; /**< Configure device. */
865 eth_dev_start_t dev_start; /**< Start device. */
866 eth_dev_stop_t dev_stop; /**< Stop device. */
867 eth_dev_close_t dev_close; /**< Close device. */
868 eth_promiscuous_enable_t promiscuous_enable; /**< Promiscuous ON. */
869 eth_promiscuous_disable_t promiscuous_disable;/**< Promiscuous OFF. */
870 eth_allmulticast_enable_t allmulticast_enable;/**< RX multicast ON. */
871 eth_allmulticast_disable_t allmulticast_disable;/**< RX multicast OF. */
872 eth_link_update_t link_update; /**< Get device link state. */
873 eth_stats_get_t stats_get; /**< Get device statistics. */
874 eth_stats_reset_t stats_reset; /**< Reset device statistics. */
875 eth_queue_stats_mapping_set_t queue_stats_mapping_set;
876 /**< Configure per queue stat counter mapping. */
877 eth_dev_infos_get_t dev_infos_get; /**< Get device info. */
878 vlan_filter_set_t vlan_filter_set; /**< Filter VLAN Setup. */
879 vlan_tpid_set_t vlan_tpid_set; /**< Outer VLAN TPID Setup. */
880 vlan_strip_queue_set_t vlan_strip_queue_set; /**< VLAN Stripping on queue. */
881 vlan_offload_set_t vlan_offload_set; /**< Set VLAN Offload. */
882 eth_rx_queue_setup_t rx_queue_setup;/**< Set up device RX queue.*/
883 eth_queue_release_t rx_queue_release;/**< Release RX queue.*/
884 eth_rx_queue_count_t rx_queue_count; /**< Get Rx queue count. */
885 eth_tx_queue_setup_t tx_queue_setup;/**< Set up device TX queue.*/
886 eth_queue_release_t tx_queue_release;/**< Release TX queue.*/
887 eth_dev_led_on_t dev_led_on; /**< Turn on LED. */
888 eth_dev_led_off_t dev_led_off; /**< Turn off LED. */
889 flow_ctrl_set_t flow_ctrl_set; /**< Setup flow control. */
890 priority_flow_ctrl_set_t priority_flow_ctrl_set; /**< Setup priority flow control.*/
891 eth_mac_addr_remove_t mac_addr_remove; /**< Remove MAC address */
892 eth_mac_addr_add_t mac_addr_add; /**< Add a MAC address */
894 /** Add a signature filter. */
895 fdir_add_signature_filter_t fdir_add_signature_filter;
896 /** Update a signature filter. */
897 fdir_update_signature_filter_t fdir_update_signature_filter;
898 /** Remove a signature filter. */
899 fdir_remove_signature_filter_t fdir_remove_signature_filter;
900 /** Get information about FDIR status. */
901 fdir_infos_get_t fdir_infos_get;
902 /** Add a perfect filter. */
903 fdir_add_perfect_filter_t fdir_add_perfect_filter;
904 /** Update a perfect filter. */
905 fdir_update_perfect_filter_t fdir_update_perfect_filter;
906 /** Remove a perfect filter. */
907 fdir_remove_perfect_filter_t fdir_remove_perfect_filter;
908 /** Setup masks for FDIR filtering. */
909 fdir_set_masks_t fdir_set_masks;
910 /** Update redirection table. */
911 reta_update_t reta_update;
912 /** Query redirection table. */
913 reta_query_t reta_query;
918 * The generic data structure associated with each ethernet device.
920 * Pointers to burst-oriented packet receive and transmit functions are
921 * located at the beginning of the structure, along with the pointer to
922 * where all the data elements for the particular device are stored in shared
923 * memory. This split allows the function pointer and driver data to be per-
924 * process, while the actual configuration data for the device is shared.
927 eth_rx_burst_t rx_pkt_burst; /**< Pointer to PMD receive function. */
928 eth_tx_burst_t tx_pkt_burst; /**< Pointer to PMD transmit function. */
929 struct rte_eth_dev_data *data; /**< Pointer to device data */
930 const struct eth_driver *driver;/**< Driver for this device */
931 struct eth_dev_ops *dev_ops; /**< Functions exported by PMD */
932 struct rte_pci_device *pci_dev; /**< PCI info. supplied by probing */
933 struct rte_eth_dev_cb_list callbacks; /**< User application callbacks */
936 struct rte_eth_dev_sriov {
937 uint8_t active; /**< SRIOV is active with 16, 32 or 64 pools */
938 uint8_t nb_q_per_pool; /**< rx queue number per pool */
939 uint16_t def_vmdq_idx; /**< Default pool num used for PF */
940 uint16_t def_pool_q_idx; /**< Default pool queue start reg index */
942 #define RTE_ETH_DEV_SRIOV(dev) ((dev)->data->sriov)
946 * The data part, with no function pointers, associated with each ethernet device.
948 * This structure is safe to place in shared memory to be common among different
949 * processes in a multi-process configuration.
951 struct rte_eth_dev_data {
952 void **rx_queues; /**< Array of pointers to RX queues. */
953 void **tx_queues; /**< Array of pointers to TX queues. */
954 uint16_t nb_rx_queues; /**< Number of RX queues. */
955 uint16_t nb_tx_queues; /**< Number of TX queues. */
957 struct rte_eth_dev_sriov sriov; /**< SRIOV data */
959 void *dev_private; /**< PMD-specific private data */
961 struct rte_eth_link dev_link;
962 /**< Link-level information & status */
964 struct rte_eth_conf dev_conf; /**< Configuration applied to device. */
965 uint16_t max_frame_size; /**< Default is ETHER_MAX_LEN (1518). */
967 uint64_t rx_mbuf_alloc_failed; /**< RX ring mbuf allocation failures. */
968 struct ether_addr* mac_addrs;/**< Device Ethernet Link address. */
969 uint8_t port_id; /**< Device [external] port identifier. */
970 uint8_t promiscuous : 1, /**< RX promiscuous mode ON(1) / OFF(0). */
971 scattered_rx : 1, /**< RX of scattered packets is ON(1) / OFF(0) */
972 all_multicast : 1, /**< RX all multicast mode ON(1) / OFF(0). */
973 dev_started : 1; /**< Device state: STARTED(1) / STOPPED(0). */
978 * The pool of *rte_eth_dev* structures. The size of the pool
979 * is configured at compile-time in the <rte_ethdev.c> file.
981 extern struct rte_eth_dev rte_eth_devices[];
984 * Get the total number of Ethernet devices that have been successfully
985 * initialized by the [matching] Ethernet driver during the PCI probing phase.
986 * All devices whose port identifier is in the range
987 * [0, rte_eth_dev_count() - 1] can be operated on by network applications.
990 * - The total number of usable Ethernet devices.
992 extern uint8_t rte_eth_dev_count(void);
997 * Initialization function of an Ethernet driver invoked for each matching
998 * Ethernet PCI device detected during the PCI probing phase.
1001 * The pointer to the [matching] Ethernet driver structure supplied by
1002 * the PMD when it registered itself.
1004 * The *eth_dev* pointer is the address of the *rte_eth_dev* structure
1005 * associated with the matching device and which have been [automatically]
1006 * allocated in the *rte_eth_devices* array.
1007 * The *eth_dev* structure is supplied to the driver initialization function
1008 * with the following fields already initialized:
1010 * - *pci_dev*: Holds the pointers to the *rte_pci_device* structure which
1011 * contains the generic PCI information of the matching device.
1013 * - *dev_private*: Holds a pointer to the device private data structure.
1015 * - *max_frame_size*: Contains the default Ethernet maximum frame length
1018 * - *port_id*: Contains the port index of the device (actually the index
1019 * of the *eth_dev* structure in the *rte_eth_devices* array).
1022 * - 0: Success, the device is properly initialized by the driver.
1023 * In particular, the driver MUST have set up the *dev_ops* pointer
1024 * of the *eth_dev* structure.
1025 * - <0: Error code of the device initialization failure.
1027 typedef int (*eth_dev_init_t)(struct eth_driver *eth_drv,
1028 struct rte_eth_dev *eth_dev);
1032 * The structure associated with a PMD Ethernet driver.
1034 * Each Ethernet driver acts as a PCI driver and is represented by a generic
1035 * *eth_driver* structure that holds:
1037 * - An *rte_pci_driver* structure (which must be the first field).
1039 * - The *eth_dev_init* function invoked for each matching PCI device.
1041 * - The size of the private data to allocate for each matching device.
1044 struct rte_pci_driver pci_drv; /**< The PMD is also a PCI driver. */
1045 eth_dev_init_t eth_dev_init; /**< Device init function. */
1046 unsigned int dev_private_size; /**< Size of device private data. */
1051 * A function invoked by the initialization function of an Ethernet driver
1052 * to simultaneously register itself as a PCI driver and as an Ethernet
1053 * Poll Mode Driver (PMD).
1056 * The pointer to the *eth_driver* structure associated with
1057 * the Ethernet driver.
1059 extern void rte_eth_driver_register(struct eth_driver *eth_drv);
1062 * The initialization function of the driver for
1063 * Intel(r) IGB Gigabit Ethernet Controller devices.
1064 * This function is invoked once at EAL start time.
1068 extern int rte_igb_pmd_init(void);
1071 * The initialization function of the driver for
1072 * Intel(r) EM Gigabit Ethernet Controller devices.
1073 * This function is invoked once at EAL start time.
1077 extern int rte_em_pmd_init(void);
1080 * The initialization function of the driver for 1Gbps Intel IGB_VF
1082 * Invoked once at EAL start time.
1086 extern int rte_igbvf_pmd_init(void);
1089 * The initialization function of the driver for 10Gbps Intel IXGBE
1091 * Invoked once at EAL start time.
1095 extern int rte_ixgbe_pmd_init(void);
1098 * The initialization function of the driver for 10Gbps Intel IXGBE_VF
1100 * Invoked once at EAL start time.
1104 extern int rte_ixgbevf_pmd_init(void);
1107 * The initialization function of *all* supported and enabled drivers.
1108 * Right now, the following PMDs are supported:
1114 * This function is invoked once at EAL start time.
1117 * Error code of the device initialization failure,
1118 * -ENODEV if there are no drivers available
1119 * (e.g. if all driver config options are = n).
1122 int rte_pmd_init_all(void)
1126 #ifdef RTE_LIBRTE_IGB_PMD
1127 if ((ret = rte_igb_pmd_init()) != 0) {
1128 RTE_LOG(ERR, PMD, "Cannot init igb PMD\n");
1131 if ((ret = rte_igbvf_pmd_init()) != 0) {
1132 RTE_LOG(ERR, PMD, "Cannot init igbvf PMD\n");
1135 #endif /* RTE_LIBRTE_IGB_PMD */
1137 #ifdef RTE_LIBRTE_EM_PMD
1138 if ((ret = rte_em_pmd_init()) != 0) {
1139 RTE_LOG(ERR, PMD, "Cannot init em PMD\n");
1142 #endif /* RTE_LIBRTE_EM_PMD */
1144 #ifdef RTE_LIBRTE_IXGBE_PMD
1145 if ((ret = rte_ixgbe_pmd_init()) != 0) {
1146 RTE_LOG(ERR, PMD, "Cannot init ixgbe PMD\n");
1149 if ((ret = rte_ixgbevf_pmd_init()) != 0) {
1150 RTE_LOG(ERR, PMD, "Cannot init ixgbevf PMD\n");
1153 #endif /* RTE_LIBRTE_IXGBE_PMD */
1156 RTE_LOG(ERR, PMD, "No PMD(s) are configured\n");
1161 * Configure an Ethernet device.
1162 * This function must be invoked first before any other function in the
1163 * Ethernet API. This function can also be re-invoked when a device is in the
1167 * The port identifier of the Ethernet device to configure.
1168 * @param nb_rx_queue
1169 * The number of receive queues to set up for the Ethernet device.
1170 * @param nb_tx_queue
1171 * The number of transmit queues to set up for the Ethernet device.
1173 * The pointer to the configuration data to be used for the Ethernet device.
1174 * The *rte_eth_conf* structure includes:
1175 * - the hardware offload features to activate, with dedicated fields for
1176 * each statically configurable offload hardware feature provided by
1177 * Ethernet devices, such as IP checksum or VLAN tag stripping for
1179 * - the Receive Side Scaling (RSS) configuration when using multiple RX
1182 * Embedding all configuration information in a single data structure
1183 * is the more flexible method that allows the addition of new features
1184 * without changing the syntax of the API.
1186 * - 0: Success, device configured.
1187 * - <0: Error code returned by the driver configuration function.
1189 extern int rte_eth_dev_configure(uint8_t port_id,
1190 uint16_t nb_rx_queue,
1191 uint16_t nb_tx_queue,
1192 const struct rte_eth_conf *eth_conf);
1195 * Allocate and set up a receive queue for an Ethernet device.
1197 * The function allocates a contiguous block of memory for *nb_rx_desc*
1198 * receive descriptors from a memory zone associated with *socket_id*
1199 * and initializes each receive descriptor with a network buffer allocated
1200 * from the memory pool *mb_pool*.
1203 * The port identifier of the Ethernet device.
1204 * @param rx_queue_id
1205 * The index of the receive queue to set up.
1206 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
1207 * to rte_eth_dev_configure().
1209 * The number of receive descriptors to allocate for the receive ring.
1211 * The *socket_id* argument is the socket identifier in case of NUMA.
1212 * The value can be *SOCKET_ID_ANY* if there is no NUMA constraint for
1213 * the DMA memory allocated for the receive descriptors of the ring.
1215 * The pointer to the configuration data to be used for the receive queue.
1216 * The *rx_conf* structure contains an *rx_thresh* structure with the values
1217 * of the Prefetch, Host, and Write-Back threshold registers of the receive
1220 * The pointer to the memory pool from which to allocate *rte_mbuf* network
1221 * memory buffers to populate each descriptor of the receive ring.
1223 * - 0: Success, receive queue correctly set up.
1224 * - -EINVAL: The size of network buffers which can be allocated from the
1225 * memory pool does not fit the various buffer sizes allowed by the
1226 * device controller.
1227 * - -ENOMEM: Unable to allocate the receive ring descriptors or to
1228 * allocate network memory buffers from the memory pool when
1229 * initializing receive descriptors.
1231 extern int rte_eth_rx_queue_setup(uint8_t port_id, uint16_t rx_queue_id,
1232 uint16_t nb_rx_desc, unsigned int socket_id,
1233 const struct rte_eth_rxconf *rx_conf,
1234 struct rte_mempool *mb_pool);
1237 * Allocate and set up a transmit queue for an Ethernet device.
1240 * The port identifier of the Ethernet device.
1241 * @param tx_queue_id
1242 * The index of the transmit queue to set up.
1243 * The value must be in the range [0, nb_tx_queue - 1] previously supplied
1244 * to rte_eth_dev_configure().
1246 * The number of transmit descriptors to allocate for the transmit ring.
1248 * The *socket_id* argument is the socket identifier in case of NUMA.
1249 * Its value can be *SOCKET_ID_ANY* if there is no NUMA constraint for
1250 * the DMA memory allocated for the transmit descriptors of the ring.
1252 * The pointer to the configuration data to be used for the transmit queue.
1253 * The *tx_conf* structure contains the following data:
1254 * - The *tx_thresh* structure with the values of the Prefetch, Host, and
1255 * Write-Back threshold registers of the transmit ring.
1256 * When setting Write-Back threshold to the value greater then zero,
1257 * *tx_rs_thresh* value should be explicitly set to one.
1258 * - The *tx_free_thresh* value indicates the [minimum] number of network
1259 * buffers that must be pending in the transmit ring to trigger their
1260 * [implicit] freeing by the driver transmit function.
1261 * - The *tx_rs_thresh* value indicates the [minimum] number of transmit
1262 * descriptors that must be pending in the transmit ring before setting the
1263 * RS bit on a descriptor by the driver transmit function.
1264 * The *tx_rs_thresh* value should be less or equal then
1265 * *tx_free_thresh* value, and both of them should be less then
1267 * - The *txq_flags* member contains flags to pass to the TX queue setup
1268 * function to configure the behavior of the TX queue. This should be set
1269 * to 0 if no special configuration is required.
1271 * Note that setting *tx_free_thresh* or *tx_rs_thresh* value to 0 forces
1272 * the transmit function to use default values.
1274 * - 0: Success, the transmit queue is correctly set up.
1275 * - -ENOMEM: Unable to allocate the transmit ring descriptors.
1277 extern int rte_eth_tx_queue_setup(uint8_t port_id, uint16_t tx_queue_id,
1278 uint16_t nb_tx_desc, unsigned int socket_id,
1279 const struct rte_eth_txconf *tx_conf);
1282 * Return the NUMA socket to which an Ethernet device is connected
1285 * The port identifier of the Ethernet device
1287 * The NUMA socket id to which the Ethernet device is connected or
1288 * a default of zero if the socket could not be determined.
1289 * -1 is returned is the port_id value is out of range.
1291 extern int rte_eth_dev_socket_id(uint8_t port_id);
1295 * Start an Ethernet device.
1297 * The device start step is the last one and consists of setting the configured
1298 * offload features and in starting the transmit and the receive units of the
1300 * On success, all basic functions exported by the Ethernet API (link status,
1301 * receive/transmit, and so on) can be invoked.
1304 * The port identifier of the Ethernet device.
1306 * - 0: Success, Ethernet device started.
1307 * - <0: Error code of the driver device start function.
1309 extern int rte_eth_dev_start(uint8_t port_id);
1312 * Stop an Ethernet device. The device can be restarted with a call to
1313 * rte_eth_dev_start()
1316 * The port identifier of the Ethernet device.
1318 extern void rte_eth_dev_stop(uint8_t port_id);
1321 * Close an Ethernet device. The device cannot be restarted!
1324 * The port identifier of the Ethernet device.
1326 extern void rte_eth_dev_close(uint8_t port_id);
1329 * Enable receipt in promiscuous mode for an Ethernet device.
1332 * The port identifier of the Ethernet device.
1334 extern void rte_eth_promiscuous_enable(uint8_t port_id);
1337 * Disable receipt in promiscuous mode for an Ethernet device.
1340 * The port identifier of the Ethernet device.
1342 extern void rte_eth_promiscuous_disable(uint8_t port_id);
1345 * Return the value of promiscuous mode for an Ethernet device.
1348 * The port identifier of the Ethernet device.
1350 * - (1) if promiscuous is enabled
1351 * - (0) if promiscuous is disabled.
1354 extern int rte_eth_promiscuous_get(uint8_t port_id);
1357 * Enable the receipt of any multicast frame by an Ethernet device.
1360 * The port identifier of the Ethernet device.
1362 extern void rte_eth_allmulticast_enable(uint8_t port_id);
1365 * Disable the receipt of all multicast frames by an Ethernet device.
1368 * The port identifier of the Ethernet device.
1370 extern void rte_eth_allmulticast_disable(uint8_t port_id);
1373 * Return the value of allmulticast mode for an Ethernet device.
1376 * The port identifier of the Ethernet device.
1378 * - (1) if allmulticast is enabled
1379 * - (0) if allmulticast is disabled.
1382 extern int rte_eth_allmulticast_get(uint8_t port_id);
1385 * Retrieve the status (ON/OFF), the speed (in Mbps) and the mode (HALF-DUPLEX
1386 * or FULL-DUPLEX) of the physical link of an Ethernet device. It might need
1387 * to wait up to 9 seconds in it.
1390 * The port identifier of the Ethernet device.
1392 * A pointer to an *rte_eth_link* structure to be filled with
1393 * the status, the speed and the mode of the Ethernet device link.
1395 extern void rte_eth_link_get(uint8_t port_id, struct rte_eth_link *link);
1398 * Retrieve the status (ON/OFF), the speed (in Mbps) and the mode (HALF-DUPLEX
1399 * or FULL-DUPLEX) of the physical link of an Ethernet device. It is a no-wait
1400 * version of rte_eth_link_get().
1403 * The port identifier of the Ethernet device.
1405 * A pointer to an *rte_eth_link* structure to be filled with
1406 * the status, the speed and the mode of the Ethernet device link.
1408 extern void rte_eth_link_get_nowait(uint8_t port_id,
1409 struct rte_eth_link *link);
1412 * Retrieve the general I/O statistics of an Ethernet device.
1415 * The port identifier of the Ethernet device.
1417 * A pointer to a structure of type *rte_eth_stats* to be filled with
1418 * the values of device counters for the following set of statistics:
1419 * - *ipackets* with the total of successfully received packets.
1420 * - *opackets* with the total of successfully transmitted packets.
1421 * - *ibytes* with the total of successfully received bytes.
1422 * - *obytes* with the total of successfully transmitted bytes.
1423 * - *ierrors* with the total of erroneous received packets.
1424 * - *oerrors* with the total of failed transmitted packets.
1426 extern void rte_eth_stats_get(uint8_t port_id, struct rte_eth_stats *stats);
1429 * Reset the general I/O statistics of an Ethernet device.
1432 * The port identifier of the Ethernet device.
1434 extern void rte_eth_stats_reset(uint8_t port_id);
1437 * Set a mapping for the specified transmit queue to the specified per-queue
1438 * statistics counter.
1441 * The port identifier of the Ethernet device.
1442 * @param tx_queue_id
1443 * The index of the transmit queue for which a queue stats mapping is required.
1444 * The value must be in the range [0, nb_tx_queue - 1] previously supplied
1445 * to rte_eth_dev_configure().
1447 * The per-queue packet statistics functionality number that the transmit
1448 * queue is to be assigned.
1449 * The value must be in the range [0, RTE_MAX_ETHPORT_QUEUE_STATS_MAPS - 1].
1451 * Zero if successful. Non-zero otherwise.
1453 extern int rte_eth_dev_set_tx_queue_stats_mapping(uint8_t port_id,
1454 uint16_t tx_queue_id,
1458 * Set a mapping for the specified receive queue to the specified per-queue
1459 * statistics counter.
1462 * The port identifier of the Ethernet device.
1463 * @param rx_queue_id
1464 * The index of the receive queue for which a queue stats mapping is required.
1465 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
1466 * to rte_eth_dev_configure().
1468 * The per-queue packet statistics functionality number that the receive
1469 * queue is to be assigned.
1470 * The value must be in the range [0, RTE_MAX_ETHPORT_QUEUE_STATS_MAPS - 1].
1472 * Zero if successful. Non-zero otherwise.
1474 extern int rte_eth_dev_set_rx_queue_stats_mapping(uint8_t port_id,
1475 uint16_t rx_queue_id,
1479 * Retrieve the Ethernet address of an Ethernet device.
1482 * The port identifier of the Ethernet device.
1484 * A pointer to a structure of type *ether_addr* to be filled with
1485 * the Ethernet address of the Ethernet device.
1487 extern void rte_eth_macaddr_get(uint8_t port_id, struct ether_addr *mac_addr);
1490 * Retrieve the contextual information of an Ethernet device.
1493 * The port identifier of the Ethernet device.
1495 * A pointer to a structure of type *rte_eth_dev_info* to be filled with
1496 * the contextual information of the Ethernet device.
1498 extern void rte_eth_dev_info_get(uint8_t port_id,
1499 struct rte_eth_dev_info *dev_info);
1502 * Enable/Disable hardware filtering by an Ethernet device of received
1503 * VLAN packets tagged with a given VLAN Tag Identifier.
1506 * The port identifier of the Ethernet device.
1508 * The VLAN Tag Identifier whose filtering must be enabled or disabled.
1510 * If > 0, enable VLAN filtering of VLAN packets tagged with *vlan_id*.
1511 * Otherwise, disable VLAN filtering of VLAN packets tagged with *vlan_id*.
1513 * - (0) if successful.
1514 * - (-ENOSUP) if hardware-assisted VLAN filtering not configured.
1515 * - (-ENODEV) if *port_id* invalid.
1516 * - (-ENOSYS) if VLAN filtering on *port_id* disabled.
1517 * - (-EINVAL) if *vlan_id* > 4095.
1519 extern int rte_eth_dev_vlan_filter(uint8_t port_id, uint16_t vlan_id , int on);
1522 * Enable/Disable hardware VLAN Strip by a rx queue of an Ethernet device.
1523 * 82599/X540 can support VLAN stripping at the rx queue level
1526 * The port identifier of the Ethernet device.
1527 * @param rx_queue_id
1528 * The index of the receive queue for which a queue stats mapping is required.
1529 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
1530 * to rte_eth_dev_configure().
1532 * If 1, Enable VLAN Stripping of the receive queue of the Ethernet port.
1533 * If 0, Disable VLAN Stripping of the receive queue of the Ethernet port.
1535 * - (0) if successful.
1536 * - (-ENOSUP) if hardware-assisted VLAN stripping not configured.
1537 * - (-ENODEV) if *port_id* invalid.
1538 * - (-EINVAL) if *rx_queue_id* invalid.
1540 extern int rte_eth_dev_set_vlan_strip_on_queue(uint8_t port_id,
1541 uint16_t rx_queue_id, int on);
1544 * Set the Outer VLAN Ether Type by an Ethernet device, it can be inserted to
1545 * the VLAN Header. This is a register setup available on some Intel NIC, not
1546 * but all, please check the data sheet for availability.
1549 * The port identifier of the Ethernet device.
1551 * The Tag Protocol ID
1553 * - (0) if successful.
1554 * - (-ENOSUP) if hardware-assisted VLAN TPID setup is not supported.
1555 * - (-ENODEV) if *port_id* invalid.
1557 extern int rte_eth_dev_set_vlan_ether_type(uint8_t port_id, uint16_t tag_type);
1560 * Set VLAN offload configuration on an Ethernet device
1561 * Enable/Disable Extended VLAN by an Ethernet device, This is a register setup
1562 * available on some Intel NIC, not but all, please check the data sheet for
1564 * Enable/Disable VLAN Strip can be done on rx queue for certain NIC, but here
1565 * the configuration is applied on the port level.
1568 * The port identifier of the Ethernet device.
1569 * @param offload_mask
1570 * The VLAN Offload bit mask can be mixed use with "OR"
1571 * ETH_VLAN_STRIP_OFFLOAD
1572 * ETH_VLAN_FILTER_OFFLOAD
1573 * ETH_VLAN_EXTEND_OFFLOAD
1575 * - (0) if successful.
1576 * - (-ENOSUP) if hardware-assisted VLAN filtering not configured.
1577 * - (-ENODEV) if *port_id* invalid.
1579 extern int rte_eth_dev_set_vlan_offload(uint8_t port_id, int offload_mask);
1582 * Read VLAN Offload configuration from an Ethernet device
1585 * The port identifier of the Ethernet device.
1587 * - (>0) if successful. Bit mask to indicate
1588 * ETH_VLAN_STRIP_OFFLOAD
1589 * ETH_VLAN_FILTER_OFFLOAD
1590 * ETH_VLAN_EXTEND_OFFLOAD
1591 * - (-ENODEV) if *port_id* invalid.
1593 extern int rte_eth_dev_get_vlan_offload(uint8_t port_id);
1597 * Retrieve a burst of input packets from a receive queue of an Ethernet
1598 * device. The retrieved packets are stored in *rte_mbuf* structures whose
1599 * pointers are supplied in the *rx_pkts* array.
1601 * The rte_eth_rx_burst() function loops, parsing the RX ring of the
1602 * receive queue, up to *nb_pkts* packets, and for each completed RX
1603 * descriptor in the ring, it performs the following operations:
1605 * - Initialize the *rte_mbuf* data structure associated with the
1606 * RX descriptor according to the information provided by the NIC into
1607 * that RX descriptor.
1609 * - Store the *rte_mbuf* data structure into the next entry of the
1612 * - Replenish the RX descriptor with a new *rte_mbuf* buffer
1613 * allocated from the memory pool associated with the receive queue at
1614 * initialization time.
1616 * When retrieving an input packet that was scattered by the controller
1617 * into multiple receive descriptors, the rte_eth_rx_burst() function
1618 * appends the associated *rte_mbuf* buffers to the first buffer of the
1621 * The rte_eth_rx_burst() function returns the number of packets
1622 * actually retrieved, which is the number of *rte_mbuf* data structures
1623 * effectively supplied into the *rx_pkts* array.
1624 * A return value equal to *nb_pkts* indicates that the RX queue contained
1625 * at least *rx_pkts* packets, and this is likely to signify that other
1626 * received packets remain in the input queue. Applications implementing
1627 * a "retrieve as much received packets as possible" policy can check this
1628 * specific case and keep invoking the rte_eth_rx_burst() function until
1629 * a value less than *nb_pkts* is returned.
1631 * This receive method has the following advantages:
1633 * - It allows a run-to-completion network stack engine to retrieve and
1634 * to immediately process received packets in a fast burst-oriented
1635 * approach, avoiding the overhead of unnecessary intermediate packet
1636 * queue/dequeue operations.
1638 * - Conversely, it also allows an asynchronous-oriented processing
1639 * method to retrieve bursts of received packets and to immediately
1640 * queue them for further parallel processing by another logical core,
1641 * for instance. However, instead of having received packets being
1642 * individually queued by the driver, this approach allows the invoker
1643 * of the rte_eth_rx_burst() function to queue a burst of retrieved
1644 * packets at a time and therefore dramatically reduce the cost of
1645 * enqueue/dequeue operations per packet.
1647 * - It allows the rte_eth_rx_burst() function of the driver to take
1648 * advantage of burst-oriented hardware features (CPU cache,
1649 * prefetch instructions, and so on) to minimize the number of CPU
1650 * cycles per packet.
1652 * To summarize, the proposed receive API enables many
1653 * burst-oriented optimizations in both synchronous and asynchronous
1654 * packet processing environments with no overhead in both cases.
1656 * The rte_eth_rx_burst() function does not provide any error
1657 * notification to avoid the corresponding overhead. As a hint, the
1658 * upper-level application might check the status of the device link once
1659 * being systematically returned a 0 value for a given number of tries.
1662 * The port identifier of the Ethernet device.
1664 * The index of the receive queue from which to retrieve input packets.
1665 * The value must be in the range [0, nb_rx_queue - 1] previously supplied
1666 * to rte_eth_dev_configure().
1668 * The address of an array of pointers to *rte_mbuf* structures that
1669 * must be large enough to store *nb_pkts* pointers in it.
1671 * The maximum number of packets to retrieve.
1673 * The number of packets actually retrieved, which is the number
1674 * of pointers to *rte_mbuf* structures effectively supplied to the
1677 #ifdef RTE_LIBRTE_ETHDEV_DEBUG
1678 extern uint16_t rte_eth_rx_burst(uint8_t port_id, uint16_t queue_id,
1679 struct rte_mbuf **rx_pkts, uint16_t nb_pkts);
1681 static inline uint16_t
1682 rte_eth_rx_burst(uint8_t port_id, uint16_t queue_id,
1683 struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
1685 struct rte_eth_dev *dev;
1687 dev = &rte_eth_devices[port_id];
1688 return (*dev->rx_pkt_burst)(dev->data->rx_queues[queue_id], rx_pkts, nb_pkts);
1692 #ifdef RTE_LIBRTE_ETHDEV_DEBUG
1693 extern uint32_t rte_eth_rx_queue_count(uint8_t port_id, uint16_t queue_id);
1695 static inline uint32_t
1696 rte_eth_rx_queue_count(uint8_t port_id, uint16_t queue_id)
1698 struct rte_eth_dev *dev;
1700 dev = &rte_eth_devices[port_id];
1701 return (*dev->dev_ops->rx_queue_count)(dev, queue_id);
1706 * Send a burst of output packets on a transmit queue of an Ethernet device.
1708 * The rte_eth_tx_burst() function is invoked to transmit output packets
1709 * on the output queue *queue_id* of the Ethernet device designated by its
1711 * The *nb_pkts* parameter is the number of packets to send which are
1712 * supplied in the *tx_pkts* array of *rte_mbuf* structures.
1713 * The rte_eth_tx_burst() function loops, sending *nb_pkts* packets,
1714 * up to the number of transmit descriptors available in the TX ring of the
1716 * For each packet to send, the rte_eth_tx_burst() function performs
1717 * the following operations:
1719 * - Pick up the next available descriptor in the transmit ring.
1721 * - Free the network buffer previously sent with that descriptor, if any.
1723 * - Initialize the transmit descriptor with the information provided
1724 * in the *rte_mbuf data structure.
1726 * In the case of a segmented packet composed of a list of *rte_mbuf* buffers,
1727 * the rte_eth_tx_burst() function uses several transmit descriptors
1730 * The rte_eth_tx_burst() function returns the number of packets it
1731 * actually sent. A return value equal to *nb_pkts* means that all packets
1732 * have been sent, and this is likely to signify that other output packets
1733 * could be immediately transmitted again. Applications that implement a
1734 * "send as many packets to transmit as possible" policy can check this
1735 * specific case and keep invoking the rte_eth_tx_burst() function until
1736 * a value less than *nb_pkts* is returned.
1738 * It is the responsibility of the rte_eth_tx_burst() function to
1739 * transparently free the memory buffers of packets previously sent.
1740 * This feature is driven by the *tx_free_thresh* value supplied to the
1741 * rte_eth_dev_configure() function at device configuration time.
1742 * When the number of previously sent packets reached the "minimum transmit
1743 * packets to free" threshold, the rte_eth_tx_burst() function must
1744 * [attempt to] free the *rte_mbuf* buffers of those packets whose
1745 * transmission was effectively completed.
1748 * The port identifier of the Ethernet device.
1750 * The index of the transmit queue through which output packets must be
1752 * The value must be in the range [0, nb_tx_queue - 1] previously supplied
1753 * to rte_eth_dev_configure().
1755 * The address of an array of *nb_pkts* pointers to *rte_mbuf* structures
1756 * which contain the output packets.
1758 * The maximum number of packets to transmit.
1760 * The number of output packets actually stored in transmit descriptors of
1761 * the transmit ring. The return value can be less than the value of the
1762 * *tx_pkts* parameter when the transmit ring is full or has been filled up.
1764 #ifdef RTE_LIBRTE_ETHDEV_DEBUG
1765 extern uint16_t rte_eth_tx_burst(uint8_t port_id, uint16_t queue_id,
1766 struct rte_mbuf **tx_pkts, uint16_t nb_pkts);
1768 static inline uint16_t
1769 rte_eth_tx_burst(uint8_t port_id, uint16_t queue_id,
1770 struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
1772 struct rte_eth_dev *dev;
1774 dev = &rte_eth_devices[port_id];
1775 return (*dev->tx_pkt_burst)(dev->data->tx_queues[queue_id], tx_pkts, nb_pkts);
1780 * Setup a new signature filter rule on an Ethernet device
1783 * The port identifier of the Ethernet device.
1784 * @param fdir_filter
1785 * The pointer to the fdir filter structure describing the signature filter
1787 * The *rte_fdir_filter* structure includes the values of the different fields
1788 * to match: source and destination IP addresses, vlan id, flexbytes, source
1789 * and destination ports, and so on.
1791 * The index of the RX queue where to store RX packets matching the added
1792 * signature filter defined in fdir_filter.
1794 * - (0) if successful.
1795 * - (-ENOTSUP) if hardware doesn't support flow director mode.
1796 * - (-ENODEV) if *port_id* invalid.
1797 * - (-ENOSYS) if the FDIR mode is not configured in signature mode
1799 * - (-EINVAL) if the fdir_filter information is not correct.
1801 int rte_eth_dev_fdir_add_signature_filter(uint8_t port_id,
1802 struct rte_fdir_filter *fdir_filter,
1806 * Update a signature filter rule on an Ethernet device.
1807 * If the rule doesn't exits, it is created.
1810 * The port identifier of the Ethernet device.
1812 * The pointer to the structure describing the signature filter rule.
1813 * The *rte_fdir_filter* structure includes the values of the different fields
1814 * to match: source and destination IP addresses, vlan id, flexbytes, source
1815 * and destination ports, and so on.
1817 * The index of the RX queue where to store RX packets matching the added
1818 * signature filter defined in fdir_ftr.
1820 * - (0) if successful.
1821 * - (-ENOTSUP) if hardware doesn't support flow director mode.
1822 * - (-ENODEV) if *port_id* invalid.
1823 * - (-ENOSYS) if the flow director mode is not configured in signature mode
1825 * - (-EINVAL) if the fdir_filter information is not correct.
1827 int rte_eth_dev_fdir_update_signature_filter(uint8_t port_id,
1828 struct rte_fdir_filter *fdir_ftr,
1832 * Remove a signature filter rule on an Ethernet device.
1835 * The port identifier of the Ethernet device.
1837 * The pointer to the structure describing the signature filter rule.
1838 * The *rte_fdir_filter* structure includes the values of the different fields
1839 * to match: source and destination IP addresses, vlan id, flexbytes, source
1840 * and destination ports, and so on.
1842 * - (0) if successful.
1843 * - (-ENOTSUP) if hardware doesn't support flow director mode.
1844 * - (-ENODEV) if *port_id* invalid.
1845 * - (-ENOSYS) if the flow director mode is not configured in signature mode
1847 * - (-EINVAL) if the fdir_filter information is not correct.
1849 int rte_eth_dev_fdir_remove_signature_filter(uint8_t port_id,
1850 struct rte_fdir_filter *fdir_ftr);
1853 * Retrieve the flow director information of an Ethernet device.
1856 * The port identifier of the Ethernet device.
1858 * A pointer to a structure of type *rte_eth_dev_fdir* to be filled with
1859 * the flow director information of the Ethernet device.
1861 * - (0) if successful.
1862 * - (-ENOTSUP) if hardware doesn't support flow director mode.
1863 * - (-ENODEV) if *port_id* invalid.
1864 * - (-ENOSYS) if the flow director mode is not configured on *port_id*.
1866 int rte_eth_dev_fdir_get_infos(uint8_t port_id, struct rte_eth_fdir *fdir);
1869 * Add a new perfect filter rule on an Ethernet device.
1872 * The port identifier of the Ethernet device.
1873 * @param fdir_filter
1874 * The pointer to the structure describing the perfect filter rule.
1875 * The *rte_fdir_filter* structure includes the values of the different fields
1876 * to match: source and destination IP addresses, vlan id, flexbytes, source
1877 * and destination ports, and so on.
1878 * IPv6 are not supported.
1880 * The 16-bit value supplied in the field hash.fdir.id of mbuf for RX
1881 * packets matching the perfect filter.
1883 * The index of the RX queue where to store RX packets matching the added
1884 * perfect filter defined in fdir_filter.
1886 * If drop is set to 1, matching RX packets are stored into the RX drop
1887 * queue defined in the rte_fdir_conf.
1889 * - (0) if successful.
1890 * - (-ENOTSUP) if hardware doesn't support flow director mode.
1891 * - (-ENODEV) if *port_id* invalid.
1892 * - (-ENOSYS) if the flow director mode is not configured in perfect mode
1894 * - (-EINVAL) if the fdir_filter information is not correct.
1896 int rte_eth_dev_fdir_add_perfect_filter(uint8_t port_id,
1897 struct rte_fdir_filter *fdir_filter,
1898 uint16_t soft_id, uint8_t rx_queue,
1902 * Update a perfect filter rule on an Ethernet device.
1903 * If the rule doesn't exits, it is created.
1906 * The port identifier of the Ethernet device.
1907 * @param fdir_filter
1908 * The pointer to the structure describing the perfect filter rule.
1909 * The *rte_fdir_filter* structure includes the values of the different fields
1910 * to match: source and destination IP addresses, vlan id, flexbytes, source
1911 * and destination ports, and so on.
1912 * IPv6 are not supported.
1914 * The 16-bit value supplied in the field hash.fdir.id of mbuf for RX
1915 * packets matching the perfect filter.
1917 * The index of the RX queue where to store RX packets matching the added
1918 * perfect filter defined in fdir_filter.
1920 * If drop is set to 1, matching RX packets are stored into the RX drop
1921 * queue defined in the rte_fdir_conf.
1923 * - (0) if successful.
1924 * - (-ENOTSUP) if hardware doesn't support flow director mode.
1925 * - (-ENODEV) if *port_id* invalid.
1926 * - (-ENOSYS) if the flow director mode is not configured in perfect mode
1928 * - (-EINVAL) if the fdir_filter information is not correct.
1930 int rte_eth_dev_fdir_update_perfect_filter(uint8_t port_id,
1931 struct rte_fdir_filter *fdir_filter,
1932 uint16_t soft_id, uint8_t rx_queue,
1936 * Remove a perfect filter rule on an Ethernet device.
1939 * The port identifier of the Ethernet device.
1940 * @param fdir_filter
1941 * The pointer to the structure describing the perfect filter rule.
1942 * The *rte_fdir_filter* structure includes the values of the different fields
1943 * to match: source and destination IP addresses, vlan id, flexbytes, source
1944 * and destination ports, and so on.
1945 * IPv6 are not supported.
1947 * The soft_id value provided when adding/updating the removed filter.
1949 * - (0) if successful.
1950 * - (-ENOTSUP) if hardware doesn't support flow director mode.
1951 * - (-ENODEV) if *port_id* invalid.
1952 * - (-ENOSYS) if the flow director mode is not configured in perfect mode
1954 * - (-EINVAL) if the fdir_filter information is not correct.
1956 int rte_eth_dev_fdir_remove_perfect_filter(uint8_t port_id,
1957 struct rte_fdir_filter *fdir_filter,
1960 * Configure globally the masks for flow director mode for an Ethernet device.
1961 * For example, the device can match packets with only the first 24 bits of
1962 * the IPv4 source address.
1964 * The following fields can be masked: IPv4 addresses and L4 port numbers.
1965 * The following fields can be either enabled or disabled completely for the
1966 * matching functionality: VLAN ID tag; VLAN Priority + CFI bit; Flexible 2-byte
1968 * IPv6 masks are not supported.
1970 * All filters must comply with the masks previously configured.
1971 * For example, with a mask equal to 255.255.255.0 for the source IPv4 address,
1972 * all IPv4 filters must be created with a source IPv4 address that fits the
1975 * This function flushes all filters that have been previously added in
1979 * The port identifier of the Ethernet device.
1981 * The pointer to the fdir mask structure describing relevant headers fields
1982 * and relevant bits to use when matching packets addresses and ports.
1983 * IPv6 masks are not supported.
1985 * - (0) if successful.
1986 * - (-ENOTSUP) if hardware doesn't support flow director mode.
1987 * - (-ENODEV) if *port_id* invalid.
1988 * - (-ENOSYS) if the flow director mode is not configured in perfect
1989 * mode on *port_id*.
1990 * - (-EINVAL) if the fdir_filter information is not correct
1992 int rte_eth_dev_fdir_set_masks(uint8_t port_id,
1993 struct rte_fdir_masks *fdir_mask);
1996 * The eth device event type for interrupt, and maybe others in the future.
1998 enum rte_eth_event_type {
1999 RTE_ETH_EVENT_UNKNOWN, /**< unknown event type */
2000 RTE_ETH_EVENT_INTR_LSC, /**< lsc interrupt event */
2001 RTE_ETH_EVENT_MAX /**< max value of this enum */
2004 typedef void (*rte_eth_dev_cb_fn)(uint8_t port_id, \
2005 enum rte_eth_event_type event, void *cb_arg);
2006 /**< user application callback to be registered for interrupts */
2011 * Register a callback function for specific port id.
2018 * User supplied callback function to be called.
2020 * Pointer to the parameters for the registered callback.
2023 * - On success, zero.
2024 * - On failure, a negative value.
2026 int rte_eth_dev_callback_register(uint8_t port_id,
2027 enum rte_eth_event_type event,
2028 rte_eth_dev_cb_fn cb_fn, void *cb_arg);
2031 * Unregister a callback function for specific port id.
2038 * User supplied callback function to be called.
2040 * Pointer to the parameters for the registered callback. -1 means to
2041 * remove all for the same callback address and same event.
2044 * - On success, zero.
2045 * - On failure, a negative value.
2047 int rte_eth_dev_callback_unregister(uint8_t port_id,
2048 enum rte_eth_event_type event,
2049 rte_eth_dev_cb_fn cb_fn, void *cb_arg);
2052 * @internal Executes all the user application registered callbacks for
2053 * the specific device. It is for DPDK internal user only. User
2054 * application should not call it directly.
2057 * Pointer to struct rte_eth_dev.
2059 * Eth device interrupt event type.
2064 void _rte_eth_dev_callback_process(struct rte_eth_dev *dev,
2065 enum rte_eth_event_type event);
2068 * Turn on the LED on the Ethernet device.
2069 * This function turns on the LED on the Ethernet device.
2072 * The port identifier of the Ethernet device.
2074 * - (0) if successful.
2075 * - (-ENOTSUP) if underlying hardware OR driver doesn't support
2077 * - (-ENODEV) if *port_id* invalid.
2079 int rte_eth_led_on(uint8_t port_id);
2082 * Turn off the LED on the Ethernet device.
2083 * This function turns off the LED on the Ethernet device.
2086 * The port identifier of the Ethernet device.
2088 * - (0) if successful.
2089 * - (-ENOTSUP) if underlying hardware OR driver doesn't support
2091 * - (-ENODEV) if *port_id* invalid.
2093 int rte_eth_led_off(uint8_t port_id);
2096 * Configure the Ethernet link flow control for Ethernet device
2099 * The port identifier of the Ethernet device.
2101 * The pointer to the structure of the flow control parameters.
2103 * - (0) if successful.
2104 * - (-ENOTSUP) if hardware doesn't support flow control mode.
2105 * - (-ENODEV) if *port_id* invalid.
2106 * - (-EINVAL) if bad parameter
2107 * - (-EIO) if flow control setup failure
2109 int rte_eth_dev_flow_ctrl_set(uint8_t port_id,
2110 struct rte_eth_fc_conf *fc_conf);
2113 * Configure the Ethernet priority flow control under DCB environment
2114 * for Ethernet device.
2117 * The port identifier of the Ethernet device.
2119 * The pointer to the structure of the priority flow control parameters.
2121 * - (0) if successful.
2122 * - (-ENOTSUP) if hardware doesn't support priority flow control mode.
2123 * - (-ENODEV) if *port_id* invalid.
2124 * - (-EINVAL) if bad parameter
2125 * - (-EIO) if flow control setup failure
2127 int rte_eth_dev_priority_flow_ctrl_set(uint8_t port_id,
2128 struct rte_eth_pfc_conf *pfc_conf);
2131 * Add a MAC address to an internal array of addresses used to enable whitelist
2132 * filtering to accept packets only if the destination MAC address matches.
2135 * The port identifier of the Ethernet device.
2137 * The MAC address to add.
2139 * VMDq pool index to associate address with (if VMDq is enabled). If VMDq is
2140 * not enabled, this should be set to 0.
2142 * - (0) if successfully added or *mac_addr" was already added.
2143 * - (-ENOTSUP) if hardware doesn't support this feature.
2144 * - (-ENODEV) if *port* is invalid.
2145 * - (-ENOSPC) if no more MAC addresses can be added.
2146 * - (-EINVAL) if MAC address is invalid.
2148 int rte_eth_dev_mac_addr_add(uint8_t port, struct ether_addr *mac_addr,
2152 * Remove a MAC address from the internal array of addresses.
2155 * The port identifier of the Ethernet device.
2157 * MAC address to remove.
2159 * - (0) if successful, or *mac_addr* didn't exist.
2160 * - (-ENOTSUP) if hardware doesn't support.
2161 * - (-ENODEV) if *port* invalid.
2162 * - (-EADDRINUSE) if attempting to remove the default MAC address
2164 int rte_eth_dev_mac_addr_remove(uint8_t port, struct ether_addr *mac_addr);
2167 * Update Redirection Table(RETA) of Receive Side Scaling of Ethernet device.
2170 * The port identifier of the Ethernet device.
2174 * - (0) if successful.
2175 * - (-ENOTSUP) if hardware doesn't support.
2176 * - (-EINVAL) if bad parameter.
2178 int rte_eth_dev_rss_reta_update(uint8_t port,
2179 struct rte_eth_rss_reta *reta_conf);
2182 * Query Redirection Table(RETA) of Receive Side Scaling of Ethernet device.
2185 * The port identifier of the Ethernet device.
2189 * - (0) if successful.
2190 * - (-ENOTSUP) if hardware doesn't support.
2191 * - (-EINVAL) if bad parameter.
2193 int rte_eth_dev_rss_reta_query(uint8_t port,
2194 struct rte_eth_rss_reta *reta_conf);
2200 #endif /* _RTE_ETHDEV_H_ */