os_mbuf_pool_init() function

The memory pool that will hold this mbuf pool

Allocate a new packet header mbuf out of the os_mbuf_pool.

Get an mbuf from the mbuf pool. The mbuf is allocated, and initialized prior to being returned.

MSYS is a system level mbuf registry. Allows the system to share packet buffers amongst the various networking stacks that can be running simultaeneously. Mbuf pools are created in the system initialization code, and then when a mbuf is allocated out of msys, it will try and find the best fit based upon estimated mbuf size. os_msys_register() registers a mbuf pool with MSYS, and allows MSYS to allocate mbufs out of it.

Mallocs a block of memory and initializes an mbuf pool to use it. The specified block_size indicates the size of an mbuf acquired from the pool if it does not contain a pkthdr.

Mallocs a block of memory and initializes an mbuf pool to use it. The specified block_size indicates the size of an mbuf acquired from the pool if it contains a pkthdr.