src/sys/dev/netmap/netmap_bdg.h, branch stable/13

sys: Remove $FreeBSD$: two-line .h pattern

2023-08-23T17:43:20+00:00

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

Similar commit in current:
(cherry picked from commit 95ee2897e98f)

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

2023-07-25T15:13:49+00:00

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

(cherry picked from commit 4d846d260e2b9a3d4d0a701462568268cbfe7a5b)

netmap_update_config: update na->name to cope with reconfigurations

2022-12-24T11:46:02+00:00

MFC after:	1 week

(cherry picked from commit 4ad57c7afaca3fd94b67c00706e210f0373b8e62)

netmap: align codebase to the current upstream (760279cfb2730a585)

2018-12-05T11:57:16+00:00

Changelist:
  - Replace netmap passthrough host support with a more general
    mechanism to call TXSYNC/RXSYNC from an in-kernel event-loop.
    No kernel threads are used to use this feature: the application
    is required to spawn a thread (or a process) and issue a
    SYNC_KLOOP_START (NIOCCTRL) command in the thread body. The
    kernel loop is executed by the ioctl implementation, which returns
    to userspace only when a different thread calls SYNC_KLOOP_STOP
    or the netmap file descriptor is closed.
  - Update the if_ptnet driver to cope with the new data structures,
    and prune all the obsolete ptnetmap code.
  - Add support for "null" netmap ports, useful to allocate netmap_if,
    netmap_ring and netmap buffers to be used by specialized applications
    (e.g. hypervisors). TXSYNC/RXSYNC on these ports have no effect.
  - Various fixes and code refactoring.

Sponsored by:	Sunny Valley Networks
Differential Revision:	https://reviews.freebsd.org/D18015

Remove redundant redeclaration of netmap_vp_reg().

2018-10-24T14:14:49+00:00

This should unbreak sparc64 and powerpc LINT builds.

netmap: align codebase to the current upstream (sha 8374e1a7e6941)

2018-10-23T08:55:16+00:00

Changelist:
    - Move large parts of VALE code to a new file and header netmap_bdg.[ch].
      This is useful to reuse the code within upcoming projects.
    - Improvements and bug fixes to pipes and monitors.
    - Introduce nm_os_onattach(), nm_os_onenter() and nm_os_onexit() to
      handle differences between FreeBSD and Linux.
    - Introduce some new helper functions to handle more host rings and fake
      rings (netmap_all_rings(), netmap_real_rings(), ...)
    - Added new sysctl to enable/disable hw checksum in emulated netmap mode.
    - nm_inject: add support for NS_MOREFRAG

Approved by:	gnn (mentor)
Differential Revision:	https://reviews.freebsd.org/D17364