What is Mbufs?
The mbuf (short for memory buffer) is a common concept in networking stacks. The mbuf is used to hold packet data as it traverses the stack. The mbuf also generally stores header information or other networking stack information that is carried around with the packet.
What is MBUF in DPDK?
The mbuf library provides the ability to allocate and free buffers (mbufs) that may be used by the DPDK application to store message buffers. The message buffers are stored in a mempool, using the Mempool Library.
What is MBUF freebsd?
An mbuf consists of a variable-sized header and a small internal buffer for data. The total size of an mbuf, MSIZE, is a constant defined in . The mbuf header includes: m_next (struct mbuf *) A pointer to the next mbuf in the mbuf chain.
What is a RTE_mbuf struct?
A rte_mbuf struct can carry network packet buffers or generic control buffers (indicated by the CTRL_MBUF_FLAG). This can be extended to other types. The rte_mbuf header structure is kept as small as possible and currently uses just two cache lines, with the most frequently used fields being on the first of the two cache lines.
Where can I find the uipc_mbuf function prototypes and macros?
The mbuf management functions are implemented in the files sys/kern/uipc_mbuf.c and sys/kern/uipc_mbuf2.c. The function prototypes and the macros are located in sys/sys/mbuf.h.
Can RTE_mbuf be extended to include other types?
This can be extended to other types. The rte_mbuf header structure is kept as small as possible and currently uses just two cache lines, with the most frequently used fields being on the first of the two cache lines. 7.1.
How many cache lines does RTE_mbuf use?
The rte_mbuf header structure is kept as small as possible and currently uses just two cache lines, with the most frequently used fields being on the first of the two cache lines. 7.1. Design of Packet Buffers¶