o add a flags parameter to netisr_register that is used to specify

  whether or not the isr needs to hold Giant when running; Giant-less
  operation is also controlled by the setting of debug_mpsafenet
o mark all netisr's except NETISR_IP as needing Giant
o add a GIANT_REQUIRED assertion to the top of netisr's that need Giant
o pickup Giant (when debug_mpsafenet is 1) inside ip_input before
  calling up with a packet
o change netisr handling so swi_net runs w/o Giant; instead we grab
  Giant before invoking handlers based on whether the handler needs Giant
o change netisr handling so that netisr's that are marked MPSAFE may
  have multiple instances active at a time
o add netisr statistics for packets dropped because the isr is inactive

Supported by:	FreeBSD Foundation

1 files changed, 1 insertions, 1 deletions

diff --git a/sys/netinet/if_ether.c b/sys/netinet/if_ether.c
index c2fefd6..b6dafe7 100644
--- a/sys/netinet/if_ether.c
+++ b/sys/netinet/if_ether.c
@@ -980,6 +980,6 @@ arp_init(void)
 	mtx_init(&arpintrq.ifq_mtx, "arp_inq", NULL, MTX_DEF);
 	LIST_INIT(&llinfo_arp);
 	callout_init(&arp_callout, CALLOUT_MPSAFE);
-	netisr_register(NETISR_ARP, arpintr, &arpintrq);
+	netisr_register(NETISR_ARP, arpintr, &arpintrq, NETISR_MPSAFE);
 }
 SYSINIT(arp, SI_SUB_PROTO_DOMAIN, SI_ORDER_ANY, arp_init, 0);