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There is no need to hold an ingress queue's lock while processing its

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descriptors.

MFC after:	1 week
This commit is contained in:
np 2011-03-05 04:04:23 +00:00
parent f10916da62
commit cb91098a1a
1 changed files with 0 additions and 8 deletions
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8
sys/dev/cxgbe/t4_sge.c
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@ -414,7 +414,6 @@ t4_intr_fwd(void *arg)
int ndesc_pending = 0, ndesc_total = 0;
int qid;
IQ_LOCK(iq);
while (is_new_response(iq, &ctrl)) {
rmb();
@ -441,7 +440,6 @@ t4_intr_fwd(void *arg)
iq_next(iq);
}
IQ_UNLOCK(iq);
if (ndesc_total > 0) {
t4_write_reg(sc, MYPF_REG(A_SGE_PF_GTS),
@ -474,7 +472,6 @@ t4_intr_evt(void *arg)
KASSERT(iq == &sc->sge.fwq, ("%s: unexpected ingress queue", __func__));
IQ_LOCK(iq);
while (is_new_response(iq, &ctrl)) {
rmb();
@ -517,7 +514,6 @@ t4_intr_evt(void *arg)
}
iq_next(iq);
}
IQ_UNLOCK(iq);
if (ndesc_total > 0) {
t4_write_reg(sc, MYPF_REG(A_SGE_PF_GTS),
@ -549,7 +545,6 @@ t4_intr_data(void *arg)
prefetch(sd->m);
prefetch(sd->cl);
IQ_LOCK(iq);
iq->intr_next = iq->intr_params;
while (is_new_response(iq, &ctrl)) {
@ -670,7 +665,6 @@ t4_intr_data(void *arg)
len -= m->m_len;
}
IQ_UNLOCK(iq);
#ifdef INET
if (cpl->l2info & htobe32(F_RXF_LRO) &&
rxq->flags & RXQ_LRO_ENABLED &&
@ -679,7 +673,6 @@ t4_intr_data(void *arg)
} else
#endif
ifp->if_input(ifp, m0);
IQ_LOCK(iq);
FL_LOCK(fl);
fl->needed += i;
@ -700,7 +693,6 @@ nextdesc: ndescs++;
ndescs = 0;
}
}
IQ_UNLOCK(iq);
#ifdef INET
while (!SLIST_EMPTY(&lro->lro_active)) {