net/sched/sch_tbf.c

61 	one with rate P (peak rate) and depth M (equal to link MTU)
89 	Note that the peak rate TBF is much more tough: with MTU 1500
102 	s64		buffer;		/* Token bucket depth/rate: MUST BE >= MTU/B */
103 	s64		mtu;
293 			if (ptoks > q->mtu)
294 				ptoks = q->mtu;
342 	q->ptokens = q->mtu;
368 	s64 buffer, mtu;
392 	mtu = min_t(u64, PSCHED_TICKS2NS(qopt->mtu), ~0U);
419 			mtu = psched_l2t_ns(&peak, pburst);
421 			max_size = min_t(u64, max_size, psched_ns_t2l(&peak, mtu));
428 		pr_warn_ratelimited("sch_tbf: burst %llu is lower than device %s mtu (%u) !\n",
461 		q->mtu = mtu;
463 		q->mtu = PSCHED_TICKS2NS(qopt->mtu);
470 	q->ptokens = q->mtu;
530 	opt.mtu = PSCHED_NS2TICKS(q->mtu);