Commit Graph

6 Commits

Author SHA1 Message Date
Enji Cooper
193d9e768b sys/modules: normalize .CURDIR-relative paths to SRCTOP
This simplifies make output/logic

Tested with:	`cd sys/modules; make ALL_MODULES=` on amd64
MFC after:	1 month
Sponsored by:	Dell EMC Isilon
2017-03-04 10:10:17 +00:00
Luigi Rizzo
37e3a6d349 Import the current version of netmap, aligned with the one on github.
This commit, long overdue, contains contributions in the last 2 years
from Stefano Garzarella, Giuseppe Lettieri, Vincenzo Maffione, including:
+ fixes on monitor ports
+ the 'ptnet' virtual device driver, and ptnetmap backend, for
  high speed virtual passthrough on VMs (bhyve fixes in an upcoming commit)
+ improved emulated netmap mode
+ more robust error handling
+ removal of stale code
+ various fixes to code and documentation (some mixup between RX and TX
  parameters, and private and public variables)

We also include an additional tool, nmreplay, which is functionally
equivalent to tcpreplay but operating on netmap ports.
2016-10-16 14:13:32 +00:00
Luigi Rizzo
89b95481b4 add missing file
Submitted by:	Daniel Peyrolon
MFC after:	3 days
2014-09-25 14:25:38 +00:00
Luigi Rizzo
f0ea3689a9 This new version of netmap brings you the following:
- netmap pipes, providing bidirectional blocking I/O while moving
  100+ Mpps between processes using shared memory channels
  (no mistake: over one hundred million. But mind you, i said
  *moving* not *processing*);

- kqueue support (BHyVe needs it);

- improved user library. Just the interface name lets you select a NIC,
  host port, VALE switch port, netmap pipe, and individual queues.
  The upcoming netmap-enabled libpcap will use this feature.

- optional extra buffers associated to netmap ports, for applications
  that need to buffer data yet don't want to make copies.

- segmentation offloading for the VALE switch, useful between VMs.

and a number of bug fixes and performance improvements.

My colleagues Giuseppe Lettieri and Vincenzo Maffione did a substantial
amount of work on these features so we owe them a big thanks.

There are some external repositories that can be of interest:

    https://code.google.com/p/netmap
        our public repository for netmap/VALE code, including
        linux versions and other stuff that does not belong here,
        such as python bindings.

    https://code.google.com/p/netmap-libpcap
        a clone of the libpcap repository with netmap support.
	With this any libpcap client has access to most netmap
	feature with no recompilation. E.g. tcpdump can filter
	packets at 10-15 Mpps.

    https://code.google.com/p/netmap-ipfw
        a userspace version of ipfw+dummynet which uses netmap
        to send/receive packets. Speed is up in the 7-10 Mpps
        range per core for simple rulesets.

Both netmap-libpcap and netmap-ipfw will be merged upstream at some
point, but while this happens it is useful to have access to them.

And yes, this code will be merged soon. It is infinitely better
than the version currently in 10 and 9.

MFC after:	3 days
2014-02-15 04:53:04 +00:00
Luigi Rizzo
f9790aeb88 split netmap code according to functions:
- netmap.c		base code
- netmap_freebsd.c	FreeBSD-specific code
- netmap_generic.c	emulate netmap over standard drivers
- netmap_mbq.c		simple mbuf tailq
- netmap_mem2.c		memory management
- netmap_vale.c		VALE switch

simplify devce-specific code
2013-12-15 08:37:24 +00:00
Luigi Rizzo
4e7dc6ecbb add support to build netmap as a module,
but for the time being keep it disconnected from the main build.

MFC after:	3 days
2012-05-29 19:55:07 +00:00