Author: np
Date: Sun May 14 09:07:13 2017
New Revision: 318263
URL: https://svnweb.freebsd.org/changeset/base/318263
Log:
cxgbe(4): netmap-only interrupts for a VI do not have an associated rxq
or ofld_rxq and should be ignored by vi_intr_iq.
MFC after: 3 days.
Sponsored by: Chelsio Communications
Modified:
head/sys/dev/cxgbe/t4_sge.c
Modified: head/sys/dev/cxgbe/t4_sge.c
==============================================================================
--- head/sys/dev/cxgbe/t4_sge.c Sun May 14 00:38:41 2017 (r318262)
+++ head/sys/dev/cxgbe/t4_sge.c Sun May 14 09:07:13 2017 (r318263)
@@ -969,6 +969,11 @@ vi_intr_iq(struct vi_info *vi, int idx)
return (&sc->sge.fwq);
nintr = vi->nintr;
+#ifdef DEV_NETMAP
+ /* Do not consider any netmap-only interrupts */
+ if (vi->flags & INTR_RXQ && vi->nnmrxq > vi->nrxq)
+ nintr -= vi->nnmrxq - vi->nrxq;
+#endif
KASSERT(nintr != 0,
("%s: vi %p has no exclusive interrupts, total interrupts = %d",
__func__, vi, sc->intr_count));
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