FreeBSD source tree https://cgit-dev.freebsd.org/src/atom?h=release%2F13.1.0 2020-08-28T20:03:54Z 2020-08-28T20:03:54Z Vincenzo Maffione vmaffione@FreeBSD.org 2020-08-28T20:03:54Z urn:sha1:5c4f8d801ca081e38ca3bfd9d36bfcd55329d703 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