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24f0bfbad5
freebsd-dev/sys/net
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Kristof Provost 24f0bfbad5 if_epair: implement fanout 
Allow multiple cores to be used to process if_epair traffic. We do this
(if RSS is enabled) based on the RSS hash of the incoming packet. This
allows us to distribute the load over multiple cores, rather than
sending everything to the same one.

We also switch from swi_sched() to taskqueues, which also contributes to
better throughput.

Benchmark results:
With net.isr.maxthreads=-1

Setup A: (cc0 - bridge0 - epair0a) (epair0b - bridge1 - cc1)

Before          627 Kpps
After (no RSS)  1.198 Mpps
After (RSS)     3.148 Mpps

Setup B: (cc0 - bridge0 - epaira0) (epair0b - vnet jail - epair1a) (epair1b - bridge1 - cc1)

Before          7.705 Kpps
After (no RSS)  1.017 Mpps
After (RSS)     2.083 Mpps

MFC after:	3 weeks
Sponsored by:	Orange Business Services
Differential Revision:	https://reviews.freebsd.org/D33731
2022-02-15 09:03:24 +01:00
..
altq altq: mark callouts as mpsafe 2021-09-04 17:26:10 +02:00
route Fix kernel build without INET and INET6 2022-01-05 09:41:38 -05:00
bpf_buffer.c
bpf_buffer.h
bpf_filter.c
bpf_jitter.c
bpf_jitter.h
bpf_zerocopy.c
bpf_zerocopy.h
bpf.c bpf: Fix the write filter for detached descriptors 2021-10-26 10:00:39 -04:00
bpf.h bpf: Add an ioctl to set the VLAN Priority on packets sent by bpf 2021-07-26 23:13:31 +02:00
bpfdesc.h bpf: Add an ioctl to set the VLAN Priority on packets sent by bpf 2021-07-26 23:13:31 +02:00
bridgestp.c
bridgestp.h
debugnet_inet.c debugnet: Fix false-positive assertions for dp_state 2021-07-28 16:34:14 -07:00
debugnet_int.h
debugnet.c debugnet: Include some required headers 2021-09-14 11:02:45 -04:00
debugnet.h
dlt.h
ethernet.h net: make ethernet.h self-contained 2021-12-17 12:38:35 +01:00
firewire.h
ieee8023ad_lacp.c LACP: Do not wait response for marker messages not sent 2021-09-23 10:57:11 +02:00
ieee8023ad_lacp.h
ieee_oui.h Remove "All Rights Reserved" from FreeBSD Foundation sys/ copyrights 2021-08-08 10:42:24 -04:00
if_arp.h
if_bridge.c if_bridge: add ALTQ support 2021-08-26 11:23:44 +02:00
if_bridgevar.h net: make if_bridgevar.h self-contained 2021-12-17 12:38:35 +01:00
if_clone.c if_clone: correctly destroy a clone from a different vnet 2022-01-24 21:07:16 -08:00
if_clone.h if_vmove: improve restoration in cloner's ifgroup membership 2022-01-24 21:06:59 -08:00
if_dead.c Add a switch structure for send tags. 2021-09-14 11:43:41 -07:00
if_disc.c routing: Allow using IPv6 next-hops for IPv4 routes (RFC 5549). 2021-08-22 22:56:08 +00:00
if_dl.h
if_edsc.c
if_enc.c
if_enc.h
if_epair.c if_epair: implement fanout 2022-02-15 09:03:24 +01:00
if_ethersubr.c vlan: allow net.link.vlan.mtag_pcp to be set per vnet 2022-02-14 22:51:10 +01:00
if_fwsubr.c routing: Allow using IPv6 next-hops for IPv4 routes (RFC 5549). 2021-08-22 22:56:08 +00:00
if_gif.c if_gif: fix vnet shutdown panic 2021-11-08 12:00:00 +01:00
if_gif.h
if_gre.c routing: Allow using IPv6 next-hops for IPv4 routes (RFC 5549). 2021-08-22 22:56:08 +00:00
if_gre.h
if_infiniband.c routing: Allow using IPv6 next-hops for IPv4 routes (RFC 5549). 2021-08-22 22:56:08 +00:00
if_ipsec.c Use network epoch to protect local IPv4 addresses hash. 2021-10-22 14:40:53 -07:00
if_ipsec.h
if_lagg.c lagg: fix unused-but-set-variable 2021-11-19 22:01:27 +01:00
if_lagg.h
if_llatbl.c Fix kernel build without INET and INET6 2022-01-05 09:41:38 -05:00
if_llatbl.h routing: Add unified level-based logging support for the routing subsystem. 2021-12-29 21:30:18 +00:00
if_llc.h
if_loop.c routing: Allow using IPv6 next-hops for IPv4 routes (RFC 5549). 2021-08-22 22:56:08 +00:00
if_me.c Use network epoch to protect local IPv4 addresses hash. 2021-10-22 14:40:53 -07:00
if_media.c
if_media.h
if_mib.c ifnet: make V_if_index static to if.c 2021-12-06 09:32:31 -08:00
if_mib.h
if_pflog.h pflog: align header to 4 bytes, not 8 2022-02-01 18:17:44 +01:00
if_pfsync.h pf: make if_pfsync.h self-contained 2021-12-17 12:38:35 +01:00
if_stf.c if_stf: KASAN fix 2021-11-30 17:35:15 +01:00
if_stf.h if_stf: make if_stf.h self-contained 2021-12-17 12:38:34 +01:00
if_tap.h
if_tun.h
if_tuntap.c routing: Allow using IPv6 next-hops for IPv4 routes (RFC 5549). 2021-08-22 22:56:08 +00:00
if_types.h
if_var.h ifnet: garbage collect unused function ifaddr_byindex(). 2022-01-28 09:51:52 -08:00
if_vlan_var.h vlan: deduplicate bpf_setpcp() and pf_ieee8021q_setpcp() 2021-07-26 23:13:31 +02:00
if_vlan.c vlan: allow net.link.vlan.mtag_pcp to be set per vnet 2022-02-14 22:51:10 +01:00
if_vxlan.c if_vxlan(4): Allow netmap_generic to intercept RX packets. 2022-02-06 15:27:46 +03:00
if_vxlan.h
if.c ifnet: garbage collect unused function ifaddr_byindex(). 2022-01-28 09:51:52 -08:00
if.h
ifdi_if.m
iflib_clone.c Create wrapper for Giant taken for newbus 2021-12-09 17:04:45 -07:00
iflib_private.h
iflib.c iflib: Allow drivers to determine which queue to TX on 2022-01-24 18:22:02 -08:00
iflib.h iflib: Allow drivers to determine which queue to TX on 2022-01-24 18:22:02 -08:00
ifq.h
infiniband.h
mp_ring.c
mp_ring.h
mppc.h
mppcc.c
mppcd.c
netisr_internal.h
netisr.c netisr: serialize/restore m_pkthdr.rcvif when queueing mbufs 2022-01-26 21:58:50 -08:00
netisr.h
netmap_legacy.h
netmap_user.h netmap: import changes from upstream 2021-08-22 09:31:05 +00:00
netmap_virt.h
netmap.h
paravirt.h
pfil.c net: whack "set but not used" warnings in net/pfil.c 2021-11-14 17:19:58 +00:00
pfil.h
pfkeyv2.h
pfvar.h pf: Initialize pf_kpool mutexes earlier 2022-01-31 16:14:00 -05:00
ppp_defs.h
radix.c routing: Fix crashes with dpdk_lpm[46] algo. 2021-08-17 20:46:22 +00:00
radix.h routing: Fix crashes with dpdk_lpm[46] algo. 2021-08-17 20:46:22 +00:00
raw_cb.c
raw_cb.h protocols: init with standard SYSINIT(9) or VNET_SYSINIT 2022-01-03 10:15:21 -08:00
raw_usrreq.c protocols: init with standard SYSINIT(9) or VNET_SYSINIT 2022-01-03 10:15:21 -08:00
rndis.h
route.c routing: fix source address selection rules for IPv4 over IPv6. 2021-09-07 21:41:05 +00:00
route.h routing: Add unified level-based logging support for the routing subsystem. 2021-12-29 21:30:18 +00:00
rss_config.c Revert "wpa: Import wpa_supplicant/hostapd commit 14ab4a816" 2021-12-02 14:45:04 -08:00
rss_config.h
rtsock.c rtsock: always set m_pkthdr.rcvif when queueing on netisr 2022-01-27 09:41:31 -08:00
sff8436.h
sff8472.h
slcompress.c
slcompress.h
toeplitz.c
toeplitz.h
vnet.c
vnet.h