Macros
#define	PBUF_LINK_HLEN (14 + ETH_PAD_SIZE)
	PBUF_LINK_HLEN: the number of bytes that should be allocated for a link level header. More...

#define	PBUF_LINK_ENCAPSULATION_HLEN 0
	PBUF_LINK_ENCAPSULATION_HLEN: the number of bytes that should be allocated for an additional encapsulation header before ethernet headers (e.g. More...

#define	PBUF_POOL_BUFSIZE LWIP_MEM_ALIGN_SIZE(TCP_MSS+40+PBUF_LINK_ENCAPSULATION_HLEN+PBUF_LINK_HLEN)
	PBUF_POOL_BUFSIZE: the size of each pbuf in the pbuf pool. More...

#define	LWIP_PBUF_REF_T u8_t
	LWIP_PBUF_REF_T: Refcount type in pbuf. More...

Detailed Description

Macro Definition Documentation

#define LWIP_PBUF_REF_T u8_t

LWIP_PBUF_REF_T: Refcount type in pbuf.

Default width of u8_t can be increased if 255 refs are not enough for you.

Definition at line 1556 of file opt.h.

#define PBUF_LINK_ENCAPSULATION_HLEN 0

PBUF_LINK_ENCAPSULATION_HLEN: the number of bytes that should be allocated for an additional encapsulation header before ethernet headers (e.g.

802.11)

Definition at line 1539 of file opt.h.

#define PBUF_LINK_HLEN (14 + ETH_PAD_SIZE)

PBUF_LINK_HLEN: the number of bytes that should be allocated for a link level header.

The default is 14, the standard value for Ethernet.

Definition at line 1530 of file opt.h.

PBUF_POOL_BUFSIZE: the size of each pbuf in the pbuf pool.

The default is designed to accommodate single full size TCP frame in one pbuf, including TCP_MSS, IP header, and link header.

Definition at line 1548 of file opt.h.