mirror of
https://github.com/churchers/vm-bhyve.git
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0ca0b56c79
Previously, vm-bhyve only distributed devices on PCI bus 0, despite bhyve supporting multiple PCI buses. This limited the number of virtual devices a VM could use. This commit addresses that issue by using the entire range of PCI buses.
120 lines
3.8 KiB
Bash
120 lines
3.8 KiB
Bash
#!/bin/sh
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#-------------------------------------------------------------------------+
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# Copyright (C) 2021 Benoit Chesneau (bchesneau@gmail.com)
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# All rights reserved
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted providing that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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# show the configuration details for a netgraph switch
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#
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# @param string _name the switch name
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# @param string _format output format
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#
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switch::netgraph::show(){
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local _name="$1"
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local _format="$2"
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local _id
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switch::netgraph::id "_id" "${_name}"
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printf "${_format}" "${_name}" "netraph" "${_id}" "n/a" "n/a" "n/a" "n/a" "n/a"
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}
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# create a netgraph switch
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#
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# @param string _switch the name of the switch
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#
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switch::netgraph::create(){
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config::core::set "switch_list" "${_switch}" "1"
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config::core::set "type_${_switch}" "netgraph"
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}
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# remove a netgraph switch
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#
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switch::netgraph::remove(){ }
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# add a new interface to this switch
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# at the moment we require the user to manually
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# set up any netgraph switches
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#
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# @param string _switch name of the switch
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# @param string _if the interface to add
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#
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switch::netgraph::add_member(){
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util::err "physical interfaces must be added to the netgraph switch manually"
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}
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# remove an interface
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#
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# @param string _switch name of the switch
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# @param string _if the interface to remove
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#
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switch::netgraph::remove_member(){
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util::err "physical interfaces must be removed from the netgraph switch manually"
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}
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# set vlan id
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#
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# @param string _switch name of switch
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# @param int _vlan vlan id to set
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#
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switch::netgraph::vlan(){
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util::err "vlan support is not currently implemented for netgraph switches"
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}
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# gets a unique linkname name for a ng_bridge interface
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# we need to make sure the link is unique and the last one
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#
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# @param string _var name of variable to put port name into
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# @param string _switch the name of the switch
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#
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switch::netgraph::id(){
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local _var="$1"
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local _switch="$2"
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# Create a new interface to the bridge
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num=2
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while ngctl msg "${_switch}:" getstats $num > /dev/null 2>&1
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do
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num=$(( $num + 1 ))
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done
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setvar "${_var}" "netgraph,path=${_switch}:,peerhook=link$num"
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}
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# create a netgraph interface for a guest
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# relies heavily on variables set in the main vm::run function
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#
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# @modifies _func _devices
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# @return 1 if we don't get a tap device
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#
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switch::netgraph::provision(){
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local _ngid
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# create a netgraph peer
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switch::netgraph::id "_ngid" "${_switch}"
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util::log "guest" "${_name}" "adding netgraph interface ${_ngid} (${_switch})"
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_devices="${_devices} -s ${_bus}:${_slot}:${_func},${_emulation},${_ngid}"
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[ -n "${_mac}" ] && _devices="${_devices},mac=${_mac}"
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_func=$((_func + 1))
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}
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