Author: bz
Date: Thu Oct 24 20:00:37 2019
New Revision: 354042
URL: https://svnweb.freebsd.org/changeset/base/354042
Log:
frag6: export another counter read-only by sysctl
Similar to the system global counter also export the per-VNET counter
"frag6_nfragpackets" detailing the current number of fragment packets
in this VNET's reassembly queues.
The read-only counter is helpful for in-VNET statistical monitoring and
for test-cases.
MFC after: 3 weeks
Sponsored by: Netflix
Modified:
head/sys/netinet6/frag6.c
Modified: head/sys/netinet6/frag6.c
==============================================================================
--- head/sys/netinet6/frag6.c Thu Oct 24 20:00:28 2019 (r354041)
+++ head/sys/netinet6/frag6.c Thu Oct 24 20:00:37 2019 (r354042)
@@ -202,6 +202,10 @@ SYSCTL_PROC(_net_inet6_ip6, IPV6CTL_MAXFRAGPACKETS, ma
"Default maximum number of outstanding fragmented IPv6 packets. "
"A value of 0 means no fragmented packets will be accepted, while a "
"a value of -1 means no limit");
+SYSCTL_UINT(_net_inet6_ip6, OID_AUTO, frag6_nfragpackets,
+ CTLFLAG_VNET | CTLFLAG_RD,
+ __DEVOLATILE(u_int *, &VNET_NAME(frag6_nfragpackets)), 0,
+ "Per-VNET number of IPv6 fragments across all reassembly queues.");
SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGSPERPACKET, maxfragsperpacket,
CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(ip6_maxfragsperpacket), 0,
"Maximum allowed number of fragments per packet");
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