Author: np
Date: Mon Jan 11 17:52:42 2016
New Revision: 293674
URL: https://svnweb.freebsd.org/changeset/base/293674
Log:
cxgbe: bind the ithreads that handle NIC rx to the correct CPU if the kernel
is built with option RSS.
Modified:
head/sys/dev/cxgbe/t4_main.c
Modified: head/sys/dev/cxgbe/t4_main.c
==============================================================================
--- head/sys/dev/cxgbe/t4_main.c Mon Jan 11 17:33:51 2016
(r293673)
+++ head/sys/dev/cxgbe/t4_main.c Mon Jan 11 17:52:42 2016
(r293674)
@@ -3642,6 +3642,9 @@ setup_intr_handlers(struct adapter *sc)
#ifdef DEV_NETMAP
struct sge_nm_rxq *nm_rxq;
#endif
+#ifdef RSS
+ int nbuckets = rss_getnumbuckets();
+#endif
/*
* Setup interrupts.
@@ -3700,6 +3703,10 @@ setup_intr_handlers(struct adapter *sc)
t4_intr, rxq, s);
if (rc != 0)
return (rc);
+#ifdef RSS
+ bus_bind_intr(sc->dev, irq->res,
+ rss_getcpu(q % nbuckets));
+#endif
irq++;
rid++;
vi->nintr++;
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