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6 commits

Author SHA1 Message Date
Matt Macy
4f6c66cc9c UDP: further performance improvements on tx 
Cumulative throughput while running 64
  netperf -H $DUT -t UDP_STREAM -- -m 1
on a 2x8x2 SKL went from 1.1Mpps to 2.5Mpps

Single stream throughput increases from 910kpps to 1.18Mpps

Baseline:
https://people.freebsd.org/~mmacy/2018.05.11/udpsender2.svg

- Protect read access to global ifnet list with epoch
https://people.freebsd.org/~mmacy/2018.05.11/udpsender3.svg

- Protect short lived ifaddr references with epoch
https://people.freebsd.org/~mmacy/2018.05.11/udpsender4.svg

- Convert if_afdata read lock path to epoch
https://people.freebsd.org/~mmacy/2018.05.11/udpsender5.svg

A fix for the inpcbhash contention is pending sufficient time
on a canary at LLNW.

Reviewed by:	gallatin
Sponsored by:	Limelight Networks
Differential Revision:	https://reviews.freebsd.org/D15409
 2018-05-23 21:02:14 +00:00
Hans Petter Selasky
6263f8b78d Only search the scope ID in ip6_find_dev() for IPv6 addresses which 
have a scope ID. Change size of the searched scope ID to the full
16-bits. There can typically be more than 255 interfaces.

Suggested by:		ae @
MFC after:		1 week
Sponsored by:		Mellanox Technologies
 2017-09-09 12:50:12 +00:00
Hans Petter Selasky
f4cf3177a2 Resolve IPv6 scope ID issues when using ip6_find_dev() in the LinuxKPI. 
Workaround problem that ifa_ifwithaddr() also matches the scope ID of
the IPv6 address when searching for a maching IPv6 address. For now
simply try all valid scope IDs until a match is found.

MFC after:		1 week
Sponsored by:		Mellanox Technologies
 2017-09-09 07:21:27 +00:00
Hans Petter Selasky
8300fb13dd Add helper function similar to ip_dev_find() to the LinuxKPI to lookup 
a network device by its IPv6 address in the given VNET.

MFC after:		1 week
Sponsored by:		Mellanox Technologies
 2017-03-16 10:02:45 +00:00
Hans Petter Selasky
404027276b Add basic support for VIMAGE to the LinuxKPI and ibcore. 
Support is implemented by mapping Linux's "struct net" into FreeBSD's
"struct vnet". Currently only vnet0 is supported by ibcore.

MFC after:		1 week
Sponsored by:		Mellanox Technologies
 2017-03-16 09:59:35 +00:00
Hans Petter Selasky
8d59ecb214 Finish process of moving the LinuxKPI module into the default kernel build. 
- Move all files related to the LinuxKPI into sys/compat/linuxkpi and
  its subfolders.
- Update sys/conf/files and some Makefiles to use new file locations.
- Added description of COMPAT_LINUXKPI to sys/conf/NOTES which in turn
  adds the LinuxKPI to all LINT builds.
- The LinuxKPI can be added to the kernel by setting the
  COMPAT_LINUXKPI option. The OFED kernel option no longer builds the
  LinuxKPI into the kernel. This was done to keep the build rules for
  the LinuxKPI in sys/conf/files simple.
- Extend the LinuxKPI module to include support for USB by moving the
  Linux USB compat from usb.ko to linuxkpi.ko.
- Bump the FreeBSD_version.
- A universe kernel build has been done.

Reviewed by:	np @ (cxgb and cxgbe related changes only)
Sponsored by:	Mellanox Technologies
 2015-10-29 08:28:39 +00:00
Renamed from sys/ofed/include/linux/inetdevice.h (Browse further)