#include <rte_mbuf.h>

Public Member Functions
union {
rte_iova_t buf_physaddr
}	__rte_aligned (sizeof(rte_iova_t))

Data Fields
void *	buf_addr
union {
rte_atomic16_t refcnt_atomic
uint16_t refcnt
}	__rte_aligned
uint16_t	nb_segs
uint16_t	port
uint64_t	ol_flags
uint32_t	pkt_len
uint16_t	data_len
uint16_t	vlan_tci
union {
uint32_t rss
struct {
uint32_t hi
} fdir
struct {
} sched
uint32_t usr
}	hash
uint16_t	vlan_tci_outer
uint16_t	buf_len
uint64_t	timestamp
struct rte_mempool *	pool
struct rte_mbuf *	next
uint16_t	priv_size
uint16_t	timesync
uint32_t	seqn
struct rte_mbuf_ext_shared_info *	shinfo
uint32_t	packet_type
uint32_t	l2_type:4
uint32_t	l3_type:4
uint32_t	l4_type:4
uint32_t	tun_type:4
uint8_t	inner_esp_next_proto
uint8_t	inner_l2_type:4
uint8_t	inner_l3_type:4
uint32_t	inner_l4_type:4
uint32_t	lo
void *	userdata
uint64_t	udata64
uint64_t	tx_offload
uint64_t	l2_len:7
uint64_t	l3_len:9
uint64_t	l4_len:8
uint64_t	tso_segsz:16
uint64_t	outer_l3_len:9
uint64_t	outer_l2_len:7

Detailed Description

The generic rte_mbuf, containing a packet mbuf.

Examples:: examples/bbdev_app/main.c, examples/bond/main.c, examples/distributor/main.c, examples/ethtool/ethtool-app/main.c, examples/eventdev_pipeline/main.c, examples/eventdev_pipeline/pipeline_worker_tx.c, examples/exception_path/main.c, examples/flow_classify/flow_classify.c, examples/flow_filtering/main.c, examples/ip_fragmentation/main.c, examples/ip_pipeline/mempool.c, examples/ip_pipeline/pipeline.c, examples/ip_reassembly/main.c, examples/ipsec-secgw/esp.c, examples/ipsec-secgw/ipsec-secgw.c, examples/ipsec-secgw/ipsec.c, examples/ipsec-secgw/sa.c, examples/ipv4_multicast/main.c, examples/kni/main.c, examples/l2fwd-cat/l2fwd-cat.c, examples/l2fwd-crypto/main.c, examples/l2fwd-jobstats/main.c, examples/l2fwd-keepalive/main.c, examples/l2fwd/main.c, examples/l3fwd-acl/main.c, examples/l3fwd-power/main.c, examples/l3fwd-vf/main.c, examples/l3fwd/l3fwd_em.c, examples/l3fwd/l3fwd_lpm.c, examples/link_status_interrupt/main.c, examples/load_balancer/runtime.c, examples/multi_process/client_server_mp/mp_client/client.c, examples/multi_process/client_server_mp/mp_server/main.c, examples/multi_process/l2fwd_fork/main.c, examples/multi_process/symmetric_mp/main.c, examples/netmap_compat/lib/compat_netmap.c, examples/packet_ordering/main.c, examples/performance-thread/l3fwd-thread/main.c, examples/ptpclient/ptpclient.c, examples/qos_meter/main.c, examples/qos_sched/app_thread.c, examples/qos_sched/main.c, examples/quota_watermark/qw/main.c, examples/rxtx_callbacks/main.c, examples/server_node_efd/node/node.c, examples/server_node_efd/server/main.c, examples/skeleton/basicfwd.c, examples/tep_termination/main.c, examples/tep_termination/vxlan.c, examples/tep_termination/vxlan_setup.c, examples/vhost/main.c, examples/vhost/virtio_net.c, examples/vmdq/main.c, and examples/vmdq_dcb/main.c.

Definition at line 431 of file rte_mbuf.h.

Member Function Documentation

RTE_STD_C11 union rte_mbuf::@134 __rte_aligned ( sizeof(rte_iova_t) )

Physical address of segment buffer. Force alignment to 8-bytes, so as to ensure we have the exact same mbuf cacheline0 layout for 32-bit and 64-bit. This makes working on vector drivers easier.

Field Documentation

void* buf_addr

Virtual address of segment buffer.

Definition at line 434 of file rte_mbuf.h.

rte_iova_t buf_physaddr

deprecated

Definition at line 444 of file rte_mbuf.h.

rte_atomic16_t refcnt_atomic

Atomically accessed refcnt

Definition at line 462 of file rte_mbuf.h.

uint16_t refcnt

Non-atomically accessed refcnt

Definition at line 463 of file rte_mbuf.h.

RTE_STD_C11 { ... } __rte_aligned

Reference counter. Its size should at least equal to the size of port field (16 bits), to support zero-copy broadcast. It should only be accessed using the following functions: rte_mbuf_refcnt_update(), rte_mbuf_refcnt_read(), and rte_mbuf_refcnt_set(). The functionality of these functions (atomic, or non-atomic) is controlled by the CONFIG_RTE_MBUF_REFCNT_ATOMIC config option.

uint16_t nb_segs

Number of segments.

Examples:: examples/exception_path/main.c, examples/ipv4_multicast/main.c, and examples/vhost/virtio_net.c.

Definition at line 465 of file rte_mbuf.h.

uint16_t port

Input port (16 bits to support more than 256 virtual ports).

Examples:: examples/distributor/main.c, examples/eventdev_pipeline/pipeline_worker_tx.c, examples/ip_fragmentation/main.c, examples/ipsec-secgw/ipsec-secgw.c, examples/ipv4_multicast/main.c, examples/l2fwd-crypto/main.c, examples/load_balancer/runtime.c, examples/multi_process/client_server_mp/mp_client/client.c, examples/packet_ordering/main.c, examples/performance-thread/l3fwd-thread/main.c, and examples/server_node_efd/node/node.c.

Definition at line 468 of file rte_mbuf.h.

uint64_t ol_flags

Offload features.

Examples:: examples/ipsec-secgw/esp.c, examples/ipsec-secgw/ipsec-secgw.c, examples/ipv4_multicast/main.c, examples/ptpclient/ptpclient.c, examples/tep_termination/vxlan.c, examples/tep_termination/vxlan_setup.c, and examples/vhost/main.c.

Definition at line 470 of file rte_mbuf.h.

uint32_t packet_type

L2/L3/L4 and tunnel information.

Examples:: examples/ip_fragmentation/main.c, examples/ip_reassembly/main.c, examples/ipsec-secgw/esp.c, examples/l3fwd-acl/main.c, examples/l3fwd-power/main.c, examples/l3fwd/l3fwd_em.c, examples/l3fwd/l3fwd_lpm.c, examples/performance-thread/l3fwd-thread/main.c, and examples/tep_termination/vxlan.c.

Definition at line 484 of file rte_mbuf.h.

uint32_t l2_type

(Outer) L2 type.

Definition at line 486 of file rte_mbuf.h.

uint32_t l3_type

(Outer) L3 type.

Definition at line 487 of file rte_mbuf.h.

uint32_t l4_type

(Outer) L4 type.

Definition at line 488 of file rte_mbuf.h.

uint32_t tun_type

Tunnel type.

Definition at line 489 of file rte_mbuf.h.

uint8_t inner_esp_next_proto

ESP next protocol type, valid if RTE_PTYPE_TUNNEL_ESP tunnel type is set on both Tx and Rx.

Examples:: examples/ipsec-secgw/esp.c.

Definition at line 493 of file rte_mbuf.h.

uint8_t inner_l2_type

Inner L2 type.

Definition at line 500 of file rte_mbuf.h.

uint8_t inner_l3_type

Inner L3 type.

Definition at line 502 of file rte_mbuf.h.

uint32_t inner_l4_type

Inner L4 type.

Definition at line 505 of file rte_mbuf.h.

uint32_t pkt_len

Total pkt len: sum of all segments.

Examples:: examples/bond/main.c, examples/exception_path/main.c, examples/ip_fragmentation/main.c, examples/ipv4_multicast/main.c, examples/l3fwd-acl/main.c, examples/l3fwd-power/main.c, examples/l3fwd-vf/main.c, examples/performance-thread/l3fwd-thread/main.c, examples/ptpclient/ptpclient.c, examples/quota_watermark/qw/main.c, examples/tep_termination/vxlan.c, examples/vhost/main.c, and examples/vhost/virtio_net.c.

Definition at line 509 of file rte_mbuf.h.

uint16_t data_len

Amount of data in segment buffer.

Examples:: examples/bond/main.c, examples/exception_path/main.c, examples/ipv4_multicast/main.c, examples/ptpclient/ptpclient.c, examples/quota_watermark/qw/main.c, examples/vhost/main.c, and examples/vhost/virtio_net.c.

Definition at line 510 of file rte_mbuf.h.

uint16_t vlan_tci

VLAN TCI (CPU order), valid if PKT_RX_VLAN is set.

Examples:: examples/ipv4_multicast/main.c, and examples/vhost/main.c.

Definition at line 512 of file rte_mbuf.h.

uint32_t rss

RSS hash result if RSS enabled

Definition at line 515 of file rte_mbuf.h.

uint32_t lo

Second 4 flexible bytes

Definition at line 524 of file rte_mbuf.h.

uint32_t hi

First 4 flexible bytes or FD ID, dependent on PKT_RX_FDIR_* flag in ol_flags.

Definition at line 527 of file rte_mbuf.h.

struct { ... } fdir

Filter identifier if FDIR enabled

struct { ... } sched

Hierarchical scheduler

uint32_t usr

User defined tags. See rte_distributor_process()

Definition at line 534 of file rte_mbuf.h.

union { ... } hash

hash information

uint16_t vlan_tci_outer

Outer VLAN TCI (CPU order), valid if PKT_RX_QINQ is set.

Examples:: examples/ipv4_multicast/main.c.

Definition at line 538 of file rte_mbuf.h.

uint16_t buf_len

Length of segment buffer.

Examples:: examples/vhost/virtio_net.c.

Definition at line 540 of file rte_mbuf.h.

uint64_t timestamp

Valid if PKT_RX_TIMESTAMP is set. The unit and time reference are not normalized but are always the same for a given port.

Definition at line 545 of file rte_mbuf.h.

void* userdata

Can be used for external metadata

Examples:: examples/bbdev_app/main.c.

Definition at line 552 of file rte_mbuf.h.

uint64_t udata64

Allow 8-byte userdata on 32-bit

Examples:: examples/ipsec-secgw/ipsec-secgw.c.

Definition at line 553 of file rte_mbuf.h.

struct rte_mempool* pool

Pool from which mbuf was allocated.

Definition at line 556 of file rte_mbuf.h.

struct rte_mbuf* next

Next segment of scattered packet.

Examples:: examples/exception_path/main.c, examples/ipv4_multicast/main.c, examples/vhost/main.c, and examples/vhost/virtio_net.c.

Definition at line 557 of file rte_mbuf.h.

uint64_t tx_offload

combined for easy fetch

Examples:: examples/ipv4_multicast/main.c.

Definition at line 562 of file rte_mbuf.h.

uint64_t l2_len

L2 (MAC) Header Length for non-tunneling pkt. Outer_L4_len + ... + Inner_L2_len for tunneling pkt.

Examples:: examples/ip_fragmentation/main.c, examples/ip_reassembly/main.c, examples/ipsec-secgw/ipsec-secgw.c, examples/tep_termination/vxlan.c, and examples/vhost/main.c.

Definition at line 566 of file rte_mbuf.h.

uint64_t l3_len

L3 (IP) Header Length.

Examples:: examples/ip_reassembly/main.c, examples/ipsec-secgw/ipsec-secgw.c, examples/tep_termination/vxlan.c, and examples/vhost/main.c.

Definition at line 569 of file rte_mbuf.h.

uint64_t l4_len

L4 (TCP/UDP) Header Length.

Examples:: examples/tep_termination/vxlan.c.

Definition at line 570 of file rte_mbuf.h.

uint64_t tso_segsz

TCP TSO segment size

Examples:: examples/tep_termination/vxlan.c.

Definition at line 571 of file rte_mbuf.h.

uint64_t outer_l3_len

Outer L3 (IP) Hdr Length.

Examples:: examples/tep_termination/vxlan.c.

Definition at line 574 of file rte_mbuf.h.

uint64_t outer_l2_len

Outer L2 (MAC) Hdr Length.

Examples:: examples/tep_termination/vxlan.c.

Definition at line 575 of file rte_mbuf.h.

uint16_t priv_size

Size of the application private data. In case of an indirect mbuf, it stores the direct mbuf private data size.

Definition at line 583 of file rte_mbuf.h.

uint16_t timesync

Timesync flags for use with IEEE1588.

Examples:: examples/ptpclient/ptpclient.c.

Definition at line 586 of file rte_mbuf.h.

uint32_t seqn

Sequence number. See also rte_reorder_insert().

Definition at line 589 of file rte_mbuf.h.

struct rte_mbuf_ext_shared_info* shinfo

Shared data for external buffer attached to mbuf. See rte_pktmbuf_attach_extbuf().

Definition at line 594 of file rte_mbuf.h.

The documentation for this struct was generated from the following file:

lib/librte_mbuf/rte_mbuf.h

Public Member Functions

Data Fields

Detailed Description

Member Function Documentation

Field Documentation