virtual nic with vmxnet3 driver has 1Gbit/s capacity instead of 10Gbit/s in trusty

[Larry Michel]

In trusty, properties for virtual vmxnet3 NIC from an ESXi 6.0 virtual machine are showing 1Gbit/s capacity. In Xenial, it's showing speed 10Gbit/s.

$ lsb_release -rd
Description: Ubuntu 14.04.5 LTS
Release: 14.04

This is for trusty:

        *-pci:2
             description: PCI bridge
             product: PCI Express Root Port
             vendor: VMware
             physical id: 15
             bus info: pci@0000:00:15.0
             version: 01
             width: 32 bits
             clock: 33MHz
             capabilities: pci pm pciexpress msi normal_decode bus_master cap_list
             configuration: driver=pcieport
             resources: irq:40 ioport:4000(size=4096) memory:fd400000-fd4fffff ioport:c0000000(size=3145728)
           *-network
                description: Ethernet interface
                product: VMXNET3 Ethernet Controller
                vendor: VMware
                physical id: 0
                bus info: pci@0000:03:00.0
                logical name: eth0
                version: 01
                serial: 00:50:56:87:40:8a
                capacity: 1Gbit/s
                width: 32 bits
                clock: 33MHz
                capabilities: pm pciexpress msi msix bus_master cap_list rom ethernet physical logical tp 1000bt-fd
                configuration: autonegotiation=off broadcast=yes driver=vmxnet3 driverversion=1.2.0.0-k-NAPI duplex=full ip=10.244.241.14 latency=0 link=yes multicast=yes port=twisted pair
                resources: irq:18 memory:fd4fc000-fd4fcfff memory:fd4fd000-fd4fdfff memory:fd4fe000-fd4fffff ioport:4000(size=16) memory:c0000000-c000ffff

For Xenial:

        *-pci:2
             description: PCI bridge
             product: PCI Express Root Port
             vendor: VMware
             physical id: 15
             bus info: pci@0000:00:15.0
             version: 01
             width: 32 bits
             clock: 33MHz
             capabilities: pci pm pciexpress msi normal_decode bus_master cap_list
             configuration: driver=pcieport
             resources: irq:24 ioport:4000(size=4096) memory:fd400000-fd4fffff ioport:c0000000(size=2097152)
           *-network
                description: Ethernet interface
                product: VMXNET3 Ethernet Controller
                vendor: VMware
                physical id: 0
                bus info: pci@0000:03:00.0
                logical name: eth0
                version: 01
                serial: 00:50:56:87:40:8a
                size: 10Gbit/s
                width: 32 bits
                clock: 33MHz
                capabilities: pm pciexpress msi msix bus_master cap_list rom ethernet physical logical tp 1000bt-fd
                configuration: autonegotiation=off broadcast=yes driver=vmxnet3 driverversion=1.4.5.0-k-NAPI duplex=full ip=10.244.241.12 latency=0 link=yes multicast=yes port=twisted pair speed=10Gbit/s
                resources: irq:18 memory:fd4fc000-fd4fcfff memory:fd4fd000-fd4fdfff memory:fd4fe000-fd4fffff ioport:4000(size=16) memory:fd400000-fd40ffff

lshw output and versions are attached.