diff options
author | ae <ae@FreeBSD.org> | 2016-08-14 20:22:03 +0000 |
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committer | ae <ae@FreeBSD.org> | 2016-08-14 20:22:03 +0000 |
commit | ddd610a8d454bf59eef203cb59d0c34ac95a8758 (patch) | |
tree | f3f0df89608b9d26103ab2c4cc08312b99dbbc11 /sys/netinet6/ip6_input.c | |
parent | b30706fc4deb4310a6e49820c9282c48f978b931 (diff) | |
download | FreeBSD-src-ddd610a8d454bf59eef203cb59d0c34ac95a8758.zip FreeBSD-src-ddd610a8d454bf59eef203cb59d0c34ac95a8758.tar.gz |
MFC r302906:
Add net.inet6.ip6.intr_queue_maxlen sysctl. It can be used to
change netisr queue limit for IPv6 at runtime.
Diffstat (limited to 'sys/netinet6/ip6_input.c')
-rw-r--r-- | sys/netinet6/ip6_input.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/sys/netinet6/ip6_input.c b/sys/netinet6/ip6_input.c index 485499d..ba0fd1f 100644 --- a/sys/netinet6/ip6_input.c +++ b/sys/netinet6/ip6_input.c @@ -86,6 +86,7 @@ __FBSDID("$FreeBSD$"); #include <sys/lock.h> #include <sys/rmlock.h> #include <sys/syslog.h> +#include <sys/sysctl.h> #include <net/if.h> #include <net/if_var.h> @@ -145,6 +146,24 @@ static struct netisr_handler ip6_nh = { #endif }; +static int +sysctl_netinet6_intr_queue_maxlen(SYSCTL_HANDLER_ARGS) +{ + int error, qlimit; + + netisr_getqlimit(&ip6_nh, &qlimit); + error = sysctl_handle_int(oidp, &qlimit, 0, req); + if (error || !req->newptr) + return (error); + if (qlimit < 1) + return (EINVAL); + return (netisr_setqlimit(&ip6_nh, qlimit)); +} +SYSCTL_DECL(_net_inet6_ip6); +SYSCTL_PROC(_net_inet6_ip6, IPV6CTL_INTRQMAXLEN, intr_queue_maxlen, + CTLTYPE_INT|CTLFLAG_RW, 0, 0, sysctl_netinet6_intr_queue_maxlen, "I", + "Maximum size of the IPv6 input queue"); + #ifdef RSS static struct netisr_handler ip6_direct_nh = { .nh_name = "ip6_direct", @@ -154,6 +173,24 @@ static struct netisr_handler ip6_direct_nh = { .nh_policy = NETISR_POLICY_CPU, .nh_dispatch = NETISR_DISPATCH_HYBRID, }; + +static int +sysctl_netinet6_intr_direct_queue_maxlen(SYSCTL_HANDLER_ARGS) +{ + int error, qlimit; + + netisr_getqlimit(&ip6_direct_nh, &qlimit); + error = sysctl_handle_int(oidp, &qlimit, 0, req); + if (error || !req->newptr) + return (error); + if (qlimit < 1) + return (EINVAL); + return (netisr_setqlimit(&ip6_direct_nh, qlimit)); +} +SYSCTL_PROC(_net_inet6_ip6, IPV6CTL_INTRDQMAXLEN, intr_direct_queue_maxlen, + CTLTYPE_INT|CTLFLAG_RW, 0, 0, sysctl_netinet6_intr_direct_queue_maxlen, + "I", "Maximum size of the IPv6 direct input queue"); + #endif VNET_DEFINE(struct pfil_head, inet6_pfil_hook); |