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| author | np <np@FreeBSD.org> | 2011-06-04 23:31:33 +0000 |
|---|---|---|
| committer | np <np@FreeBSD.org> | 2011-06-04 23:31:33 +0000 |
| commit | e420fa8231e4613315fa0cf023046b5405070a4e (patch) | |
| tree | 1505c63ab4042128411db947be2fbe7a18b33aec /sys/dev | |
| parent | b6c58c05a42eb4e491ef68746c57324ac602ebe0 (diff) | |
| download | FreeBSD-src-e420fa8231e4613315fa0cf023046b5405070a4e.zip FreeBSD-src-e420fa8231e4613315fa0cf023046b5405070a4e.tar.gz | |
Allow lazy fill up of freelists.
MFC after: 3 days
Diffstat (limited to 'sys/dev')
| -rw-r--r-- | sys/dev/cxgbe/adapter.h | 1 | ||||
| -rw-r--r-- | sys/dev/cxgbe/t4_sge.c | 10 |
2 files changed, 10 insertions, 1 deletions
diff --git a/sys/dev/cxgbe/adapter.h b/sys/dev/cxgbe/adapter.h index 58ff04e..0b33b67 100644 --- a/sys/dev/cxgbe/adapter.h +++ b/sys/dev/cxgbe/adapter.h @@ -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) */ diff --git a/sys/dev/cxgbe/t4_sge.c b/sys/dev/cxgbe/t4_sge.c index f8efda5..b3e3567 100644 --- a/sys/dev/cxgbe/t4_sge.c +++ b/sys/dev/cxgbe/t4_sge.c @@ -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) |
