write_gl_to_txd
static void write_gl_to_txd(struct sge_txq *, struct mbuf *, caddr_t *, int);
write_gl_to_txd(txq, m0, &dst, 0);
write_gl_to_txd(txq, m0, &dst, eq->sidx - ndesc < eq->pidx);
write_gl_to_txd(txq, m0, &dst, eq->sidx - ndesc < eq->pidx);
write_gl_to_txd(txq, m, (caddr_t *)(&flitp), checkwrap);
write_gl_to_txd(txq, m, (caddr_t *)(&flitp), 0);