git: e5ed417bb442 - main - bhyve: Document the "type" config variable for network device models.
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Date: Thu, 30 Jun 2022 22:16:01 UTC
The branch main has been updated by jhb: URL: https://cgit.FreeBSD.org/src/commit/?id=e5ed417bb442cddece6ffbd6f2ec87d70520241a commit e5ed417bb442cddece6ffbd6f2ec87d70520241a Author: John Baldwin <jhb@FreeBSD.org> AuthorDate: 2022-06-30 22:14:36 +0000 Commit: John Baldwin <jhb@FreeBSD.org> CommitDate: 2022-06-30 22:14:36 +0000 bhyve: Document the "type" config variable for network device models. --- usr.sbin/bhyve/bhyve_config.5 | 50 +++++++++++++++++++++++++++++++------------ 1 file changed, 36 insertions(+), 14 deletions(-) diff --git a/usr.sbin/bhyve/bhyve_config.5 b/usr.sbin/bhyve/bhyve_config.5 index bd4f3fb22ed3..20109170b094 100644 --- a/usr.sbin/bhyve/bhyve_config.5 +++ b/usr.sbin/bhyve/bhyve_config.5 @@ -23,7 +23,7 @@ .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" -.Dd March 2, 2022 +.Dd June 30, 2022 .Dt BHYVE_CONFIG 5 .Os .Sh NAME @@ -336,16 +336,21 @@ The backend is responsible for passing packets between the device model and a desired destination. Configuring a backend requires setting the .Va backend -variable to one of the following values: -.Bl -tag -.It tap Ns Va N -Use the named +variable. +The type of a backend can either be set explicitly via the +.Va type +variable +or it can be inferred from the value of +.Va backend . +.Pp +The following types of backends are supported: +.Bl -tag -width "netgraph" +.It tap +Use the .Xr tap 4 -interface as the backend. -.It vmnet Ns Va N -Use the named -.Xr vmnet 4 -interface as the backend. +interface named in +.Va backend +as the backend. .It netgraph Use a .Xr netgraph 4 @@ -368,14 +373,31 @@ The name of the source hook on the created .Xr ng_socket 4 node. .El -.It netmap: Ns Va interface +.It netmap Use .Xr netmap 4 -on a network interface as the backend. -.It vale Ns Va bridge : Ns Va port -Use a port on a +either on a network interface or a port on a .Xr vale 4 bridge as the backend. +The value of +.Va backend +is passed to +.Xr nm_open +to connect to a netmap port. +.El +.Pp +If +.Va type +is not specified explicitly, then it is inferred from +.Va backend +based on the following patterns: +.Bl -column -offset indent "valuebridge:port" +.It Sy Pattern Ta Sy Type +.It tap Ns Va N Ta tap +.It vmnet Ns Va N Ta tap +.It netgraph Ta netgraph +.It netmap: Ns Va interface Ta netmap +.It vale Ns Va bridge : Ns Va port Ta netmap .El .Ss UART Device Settings .Bl -column "Name" "Format" "Default"