SDP_MAX_PACKET
#define SDP_MAX_PAYLOAD (SDP_MAX_PACKET - SDP_HEAD_SIZE)
#define SDP_MAX_RECV_SGES (SDP_MAX_PACKET / MCLBYTES)
#define SDP_MAX_SEND_SGES (SDP_MAX_PACKET / MCLBYTES) + 2
return MIN(new_size, SDP_MAX_PACKET);
u32 max_size = SDP_MAX_PACKET;