sq_send_hdr
return sizeof(struct sq_send_hdr) + nsge * sizeof(struct sq_sge);
calc_ils = (sizeof(struct sq_send_hdr) + ilsize);
align = sizeof(struct sq_send_hdr);
sizeof(struct sq_send_hdr);
wqe_size += sizeof(struct sq_send_hdr);
struct sq_send_hdr *sqe = base_hdr;