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33 .Nd Packet-oriented transport for Non-Transparent Bridges
35 To load the driver as a module at boot, place the following line in
37 .Bd -literal -offset indent
38 ntb_transport_load="YES"
41 The following tunables are settable from the
44 .It Va hw.ntb_transport.debug_level
46 The default value is 0, higher means more verbose.
47 .It Va hw.ntb_transport.max_num_clients
48 Number of bidirectional queues to setup.
49 The default value is 0, that means one queue per available memory window.
50 Maximal number is limited by number of doorbells.
55 driver attaches on top of the
57 driver to utilize its resources to create set of bidirectional queues,
58 delivering packets between the systems.
59 The primary purpose of this is to be used by
61 network interface, but other consumers may also be developed using KPI.
69 driver was developed by Intel and originally written by
70 .An Carl Delsey Aq Mt carl@FreeBSD.org .
71 Later improvements were done by
72 .An Conrad E. Meyer Aq Mt cem@FreeBSD.org
74 .An Alexander Motin Aq Mt mav@FreeBSD.org .