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* Remove $FreeBSD$: one-line .h patternWarner Losh2023-08-161-1/+0
| | | | Remove /^\s*\*+\s*\$FreeBSD\$.*$\n/
* spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSDWarner Losh2023-05-121-1/+1
| | | | | | | | | The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch up to that fact and revert to their recommended match of BSD-2-Clause. Discussed with: pfg MFC After: 3 days Sponsored by: Netflix
* netmap: several typo fixesVincenzo Maffione2021-04-021-2/+2
| | | | No functional changes intended.
* libnetmap: add support for the offset featuresVincenzo Maffione2021-03-291-0/+57
| | | | | | | | The companion libnetmap changes for the "offsets" kernel support added in a6d768d845c173823785c. This includes code to parse the "@offset=NNN" option that can be appended to the port name by any nmport_* application. Example: # pkt-gen -i 'netmap:em0@offset=16'
* libnetmap: fix cast from uint64_t to void*Vincenzo Maffione2020-09-221-2/+2
| | | | | | | | | | | We use uintptr_t as an intermediate cast to avoid compiler warnings on 32 bit architectures. Reported by: adrian MFC after: 3 days Notes: svn path=/head/; revision=366011
* lib: add libnetmapVincenzo Maffione2020-08-281-0/+660
This changeset introduces the new libnetmap library for writing netmap applications. Before libnetmap, applications could either use the kernel API directly (e.g. NIOCREGIF/NIOCCTRL) or the simple header-only-library netmap_user.h (e.g. nm_open(), nm_close(), nm_mmap() etc.) The new library offers more functionalities than netmap_user.h: - Support for complex netmap options, such as external memory allocators or per-buffer offsets. This opens the way to future extensions. - More flexibility in the netmap port bind options, such as non-numeric names for pipes, or the ability to specify the netmap allocator that must be used for a given port. - Automatic tracking of the netmap memory regions in use across the open ports. At the moment there is no man page, but the libnetmap.h header file has in-depth documentation. Reviewed by: hrs MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D26171 Notes: svn path=/head/; revision=364936