diff options
Diffstat (limited to 'net/Kconfig')
| -rw-r--r-- | net/Kconfig | 106 |
1 files changed, 54 insertions, 52 deletions
diff --git a/net/Kconfig b/net/Kconfig index 2eeb0e55f7c9..48c33c222199 100644 --- a/net/Kconfig +++ b/net/Kconfig @@ -8,7 +8,7 @@ menuconfig NET select NLATTR select GENERIC_NET_UTILS select BPF - ---help--- + help Unless you really know what you are doing, you should say Y here. The reason is that some programs need kernel networking support even when running on a stand-alone machine that isn't connected to any @@ -52,6 +52,9 @@ config NET_INGRESS config NET_EGRESS bool +config NET_REDIRECT + bool + config SKB_EXTENSIONS bool @@ -67,7 +70,7 @@ source "net/xdp/Kconfig" config INET bool "TCP/IP networking" - ---help--- + help These are the protocols used on the Internet and on most local Ethernets. It is highly recommended to say Y here (this will enlarge your kernel by about 400 KB), since some programs (e.g. the X window @@ -83,7 +86,7 @@ config INET "Sysctl support" below, you can change various aspects of the behavior of the TCP/IP code by writing to the (virtual) files in /proc/sys/net/ipv4/*; the options are explained in the file - <file:Documentation/networking/ip-sysctl.txt>. + <file:Documentation/networking/ip-sysctl.rst>. Short answer: say Y. @@ -118,7 +121,7 @@ config NETWORK_PHY_TIMESTAMPING menuconfig NETFILTER bool "Network packet filtering framework (Netfilter)" - ---help--- + help Netfilter is a framework for filtering and mangling network packets that pass through your Linux box. @@ -189,7 +192,7 @@ config BRIDGE_NETFILTER depends on NETFILTER_ADVANCED select NETFILTER_FAMILY_BRIDGE select SKB_EXTENSIONS - ---help--- + help Enabling this option will let arptables resp. iptables see bridged ARP resp. IP traffic. If you want a bridging firewall, you probably want this option enabled. @@ -201,7 +204,6 @@ config BRIDGE_NETFILTER source "net/netfilter/Kconfig" source "net/ipv4/netfilter/Kconfig" source "net/ipv6/netfilter/Kconfig" -source "net/decnet/netfilter/Kconfig" source "net/bridge/netfilter/Kconfig" endif @@ -218,7 +220,6 @@ source "net/802/Kconfig" source "net/bridge/Kconfig" source "net/dsa/Kconfig" source "net/8021q/Kconfig" -source "net/decnet/Kconfig" source "net/llc/Kconfig" source "drivers/net/appletalk/Kconfig" source "net/x25/Kconfig" @@ -242,6 +243,14 @@ source "net/l3mdev/Kconfig" source "net/qrtr/Kconfig" source "net/ncsi/Kconfig" +config PCPU_DEV_REFCNT + bool "Use percpu variables to maintain network device refcount" + depends on SMP + default y + help + network device refcount are using per cpu variables if this option is set. + This can be forced to N to detect underflows (with a performance drop). + config RPS bool depends on SMP && SYSFS @@ -253,9 +262,13 @@ config RFS_ACCEL select CPU_RMAP default y +config SOCK_RX_QUEUE_MAPPING + bool + config XPS bool depends on SMP + select SOCK_RX_QUEUE_MAPPING default y config HWBM @@ -265,7 +278,7 @@ config CGROUP_NET_PRIO bool "Network priority cgroup" depends on CGROUPS select SOCK_CGROUP_DATA - ---help--- + help Cgroup subsystem for use in assigning processes to network priorities on a per-interface basis. @@ -273,13 +286,13 @@ config CGROUP_NET_CLASSID bool "Network classid cgroup" depends on CGROUPS select SOCK_CGROUP_DATA - ---help--- + help Cgroup subsystem for use as general purpose socket classid marker that is being used in cls_cgroup and for netfilter matching. config NET_RX_BUSY_POLL bool - default y + default y if !PREEMPT_RT config BQL bool @@ -287,21 +300,6 @@ config BQL select DQL default y -config BPF_JIT - bool "enable BPF Just In Time compiler" - depends on HAVE_CBPF_JIT || HAVE_EBPF_JIT - depends on MODULES - ---help--- - Berkeley Packet Filter filtering capabilities are normally handled - by an interpreter. This option allows kernel to generate a native - code when filter is loaded in memory. This should speedup - packet sniffing (libpcap/tcpdump). - - Note, admin should enable this feature changing: - /proc/sys/net/core/bpf_jit_enable - /proc/sys/net/core/bpf_jit_harden (optional) - /proc/sys/net/core/bpf_jit_kallsyms (optional) - config BPF_STREAM_PARSER bool "enable BPF STREAM_PARSER" depends on INET @@ -309,19 +307,15 @@ config BPF_STREAM_PARSER depends on CGROUP_BPF select STREAM_PARSER select NET_SOCK_MSG - ---help--- - Enabling this allows a stream parser to be used with + help + Enabling this allows a TCP stream parser to be used with BPF_MAP_TYPE_SOCKMAP. - BPF_MAP_TYPE_SOCKMAP provides a map type to use with network sockets. - It can be used to enforce socket policy, implement socket redirects, - etc. - config NET_FLOW_LIMIT bool depends on RPS default y - ---help--- + help The network stack has to drop packets when a receive processing CPU's backlog reaches netdev_max_backlog. If a few out of many active flows generate the vast majority of load, drop their traffic earlier to @@ -334,14 +328,14 @@ menu "Network testing" config NET_PKTGEN tristate "Packet Generator (USE WITH CAUTION)" depends on INET && PROC_FS - ---help--- + help This module will inject preconfigured packets, at a configurable rate, out of a given interface. It is used for network interface stress testing and performance analysis. If you don't understand what was just said, you don't need it: say N. Documentation on how to use the packet generator can be found - at <file:Documentation/networking/pktgen.txt>. + at <file:Documentation/networking/pktgen.rst>. To compile this code as a module, choose M here: the module will be called pktgen. @@ -349,7 +343,7 @@ config NET_PKTGEN config NET_DROP_MONITOR tristate "Network packet drop alerting service" depends on INET && TRACEPOINTS - ---help--- + help This feature provides an alerting service to userspace in the event that packets are discarded in the network stack. Alerts are broadcast via netlink socket to any listening user space @@ -367,6 +361,7 @@ source "net/bluetooth/Kconfig" source "net/rxrpc/Kconfig" source "net/kcm/Kconfig" source "net/strparser/Kconfig" +source "net/mctp/Kconfig" config FIB_RULES bool @@ -383,8 +378,6 @@ source "net/mac80211/Kconfig" endif # WIRELESS -source "net/wimax/Kconfig" - source "net/rfkill/Kconfig" source "net/9p/Kconfig" source "net/caif/Kconfig" @@ -395,7 +388,7 @@ source "net/ife/Kconfig" config LWTUNNEL bool "Network light weight tunnels" - ---help--- + help This feature provides an infrastructure to support light weight tunnels like mpls. There is no netdevice associated with a light weight tunnel endpoint. Tunnel encapsulation parameters are stored @@ -405,7 +398,7 @@ config LWTUNNEL_BPF bool "Execute BPF program as route nexthop action" depends on LWTUNNEL && INET default y if LWTUNNEL=y - ---help--- + help Allows to run BPF programs as a nexthop action following a route lookup for incoming and outgoing packets. @@ -420,6 +413,10 @@ config GRO_CELLS config SOCK_VALIDATE_XMIT bool +config NET_SELFTESTS + def_tristate PHYLIB + depends on PHYLIB && INET + config NET_SOCK_MSG bool default n @@ -431,11 +428,23 @@ config NET_SOCK_MSG config NET_DEVLINK bool default n - imply NET_DROP_MONITOR config PAGE_POOL bool +config PAGE_POOL_STATS + default n + bool "Page pool stats" + depends on PAGE_POOL + help + Enable page pool statistics to track page allocation and recycling + in page pools. This option incurs additional CPU cost in allocation + and recycle paths and additional memory cost to store the statistics. + These statistics are only available if this option is enabled and if + the driver using the page pool supports exporting this data. + + If unsure, say N. + config FAILOVER tristate "Generic failover module" help @@ -457,16 +466,9 @@ config ETHTOOL_NETLINK netlink. It provides better extensibility and some new features, e.g. notification messages. -endif # if NET - -# Used by archs to tell that they support BPF JIT compiler plus which flavour. -# Only one of the two can be selected for a specific arch since eBPF JIT supersedes -# the cBPF JIT. +config NETDEV_ADDR_LIST_TEST + tristate "Unit tests for device address list" + default KUNIT_ALL_TESTS + depends on KUNIT -# Classic BPF JIT (cBPF) -config HAVE_CBPF_JIT - bool - -# Extended BPF JIT (eBPF) -config HAVE_EBPF_JIT - bool +endif # if NET |