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Jordan Whited f0230ce0b5 go.mod,net/tstun,wgengine/netstack: implement gVisor TCP GRO for Linux (#12921) ... This commit implements TCP GRO for packets being written to gVisor on Linux. Windows support will follow later. The wireguard-go dependency is updated in order to make use of newly exported IP checksum functions. gVisor is updated in order to make use of newly exported stack.PacketBuffer GRO logic. TCP throughput towards gVisor, i.e. TUN write direction, is dramatically improved as a result of this commit. Benchmarks show substantial improvement, sometimes as high as 2x. High bandwidth-delay product paths remain receive window limited, bottlenecked by gVisor's default TCP receive socket buffer size. This will be addressed in a follow-on commit. The iperf3 results below demonstrate the effect of this commit between two Linux computers with i5-12400 CPUs. There is roughly ~13us of round trip latency between them. The first result is from commit 57856fc without TCP GRO. Starting Test: protocol: TCP, 1 streams, 131072 byte blocks - - - - - - - - - - - - - - - - - - - - - - - - - Test Complete. Summary Results: [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 4.77 GBytes 4.10 Gbits/sec 20 sender [ 5] 0.00-10.00 sec 4.77 GBytes 4.10 Gbits/sec receiver The second result is from this commit with TCP GRO. Starting Test: protocol: TCP, 1 streams, 131072 byte blocks - - - - - - - - - - - - - - - - - - - - - - - - - Test Complete. Summary Results: [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 10.6 GBytes 9.14 Gbits/sec 20 sender [ 5] 0.00-10.00 sec 10.6 GBytes 9.14 Gbits/sec receiver Updates #6816 Signed-off-by: Jordan Whited <jordan@tailscale.com>		3 months ago
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bench	ipn/ipnlocal, all: plumb health trackers in tests	6 months ago
capture	various: add golangci-lint, fix issues (#7905)	2 years ago
filter	wgengine/filter: support FilterRules matching on srcIP node caps [capver 100]	5 months ago
magicsock	ipn,wgengine/magicsock: allow setting static node endpoints via tailscaled configfile (#12882)	4 months ago
netlog	wgengine: add exit destination logging enable for wgengine logger (#11952)	6 months ago
netstack	go.mod,net/tstun,wgengine/netstack: implement gVisor TCP GRO for Linux (#12921)	3 months ago
router	wgengine/router: use quad-100 as the nexthop on Windows	4 months ago
wgcfg	ipn,wgengine: remove vestigial Prefs.AllowSingleHosts	6 months ago
wgint	wgengine{,/wgint}: add wgint.Peer wrapper type, add to wgengine.Engine	9 months ago
wglog	all: use Go 1.22 range-over-int	7 months ago
winnet	all: add test for package comments, fix, add comments as needed	4 months ago
mem_ios.go	all: update copyright and license headers	2 years ago
pendopen.go	net/flowtrack: optimize Tuple type for use as map key	5 months ago
userspace.go	net/ipset, wgengine/filter/filtertype: add split-out packages	5 months ago
userspace_ext_test.go	ipn/ipnlocal, all: plumb health trackers in tests	6 months ago
userspace_test.go	ipn/ipnlocal, all: plumb health trackers in tests	6 months ago
watchdog.go	ipn/ipnlocal,net/tstun,wgengine: create and plumb jailed packet filter	6 months ago
watchdog_js.go	all: update copyright and license headers	2 years ago
watchdog_test.go	ipn/ipnlocal, all: plumb health trackers in tests	6 months ago
wgengine.go	all: add test for package comments, fix, add comments as needed	4 months ago