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Allow lazy fill up of freelists.

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MFC after:	3 days
This commit is contained in:
np 2011-06-04 23:31:33 +00:00
parent b6c58c05a4
commit e420fa8231
2 changed files with 10 additions and 1 deletions
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1
sys/dev/cxgbe/adapter.h
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@ -396,6 +396,7 @@ struct sge_ctrlq {
struct sge {
uint16_t timer_val[SGE_NTIMERS];
uint8_t counter_val[SGE_NCOUNTERS];
int fl_starve_threshold;
int nrxq; /* total rx queues (all ports and the rest) */
int ntxq; /* total tx queues (all ports and the rest) */

10
sys/dev/cxgbe/t4_sge.c
View File

@ -203,6 +203,9 @@ t4_sge_init(struct adapter *sc)
FL_BUF_SIZE(i));
}
i = t4_read_reg(sc, A_SGE_CONM_CTRL);
s->fl_starve_threshold = G_EGRTHRESHOLD(i) * 2 + 1;
t4_write_reg(sc, A_SGE_INGRESS_RX_THRESHOLD,
V_THRESHOLD_0(s->counter_val[0]) |
V_THRESHOLD_1(s->counter_val[1]) |
@ -1233,7 +1236,8 @@ alloc_iq_fl(struct port_info *pi, struct sge_iq *iq, struct sge_fl *fl,
sc->sge.eqmap[cntxt_id] = (void *)fl;
FL_LOCK(fl);
refill_fl(sc, fl, -1, 8);
/* Just enough to make sure it doesn't starve right away. */
refill_fl(sc, fl, roundup(sc->sge.fl_starve_threshold, 8), 8);
FL_UNLOCK(fl);
}
@ -1389,6 +1393,10 @@ alloc_rxq(struct port_info *pi, struct sge_rxq *rxq, int intr_idx, int idx)
if (rc != 0)
return (rc);
FL_LOCK(&rxq->fl);
refill_fl(pi->adapter, &rxq->fl, rxq->fl.needed / 8, 8);
FL_UNLOCK(&rxq->fl);
#ifdef INET
rc = tcp_lro_init(&rxq->lro);
if (rc != 0)