3 VPP with VMware/Vmxnet3
4 =======================
6 This section describes a native Vmxnet3 driver that is included with VPP.
7 This driver is written as a plugin and is found in src/plugin/vmxnet3.
12 The native VPP native vmxnet3 driver provides the following features
13 that are not provided with the standard dpdk vmxnet3 driver.
22 This driver does yet support the following features.
29 - This code is tested with vfio-pci driver installed with Ubuntu 18.04
30 which has kernel version 4.15.0-33-generic.
32 - This code is tested with ESXi vSwitch version 6.5 and 6.7 for LRO/TSO support,
33 VMware Workstation 15 Pro (no LRO/TSO), and VMware Fusion 11 Pro (no LRO/TSO).
35 - Driver requires MSI-X interrupt support, which is not supported by
36 uio_pci_generic driver, so vfio-pci needs to be used. On systems
37 without IOMMU vfio driver can still be used with recent kernels which
38 support no-iommu mode.
43 VMware fusion does not have a menu option to change the default driver (e1000)
44 to the **vmxnet3** driver. VPP supports the **vmxnet3** driver.
46 These instructions describe how to change the e1000 driver for VMware fusion.
48 * From the VMware Fusion menu bar select **Window** then **Virtual Machine
50 * From the Virtual Machine menu right click on the Virtual Machine you are using
51 and select **Show in Finder**
52 * Find the name associated with the VM you are using, right click on it and
53 select **Show Package Contents**
54 * Find the **.vmx** file and edit it.
55 * Find all the occurrences of **e1000** and change them to **vmxnet3**
57 If you are concerned more with configuration not performance the vmxnet3 driver
58 can be set to **interrupt** mode in VPP. This will save a great deal on battery
59 usage. Do this with the following
61 VMware Workstation PRO 15 for Linux
62 -----------------------------------
64 VMware Workstation does not have a menu option to change the default driver
65 (e1000) to the **vmxnet3** driver. VPP supports the **vmxnet3** driver.
67 These instructions describe how to change the e1000 driver for VMware
68 Workstation PRO 15 Linux. You may need to be a superuser for performing these
71 * Shut down the VM you are about to change.
72 * From the vmware folder where vmware creates and stores the VM's, change the
73 directory to the specific VM which you want to modify, and use your favorite
74 text editor to open the corresponding VM's .vmx file. By default, it is
75 $HOME/vmware/<vm-name>/<vm-name>.vmx
76 * Locate the line for the interface which you want to modify. For example, if it
77 is ethernet1, then change the line **ethernet1.virtualDev = "e1000"** to
78 **ethernet1.virtualDev = "vmxnet3"**
79 * Save the file and power on the VM.
81 If you are concerned more with configuration not performance the vmxnet3 driver
82 can be set to **interrupt** mode in VPP. This will save a great deal on battery
83 usage. Do this with the following
85 .. code-block:: console
87 $ sudo vppctl set interface rx-mode <interface> interrupt
93 To use the native VPP vmxnet3 driver use the following Steps
97 .. code-block:: console
99 $ sudo modprobe vfio-pci
101 Make sure the interface is down
103 .. code-block:: console
105 $ sudo ifconfig <if-name> down
107 The next 2 steps are optional and may be accomplished by specifying the optional
108 "bind" keyword when creating the vmxnet3 interface.
110 For systems without IOMMU only, enable unsafe NOIOMMU mode
112 .. code-block:: console
114 $ echo Y | sudo tee /sys/module/vfio/parameters/enable_unsafe_noiommu_mode
116 To bind interface to vfio-pci first install get the dpdk_devbind.py script.
118 Bind the driver with the following commands:
120 .. code-block:: console
122 $ sudo /usr/local/vpp/vpp-config/scripts/dpdk-devbind.py -s
124 Network devices using DPDK-compatible driver
125 ============================================
128 Network devices using kernel driver
129 ===================================
130 0000:03:00.0 'VMXNET3 Ethernet Controller' if=ens160 drv=vmxnet3 unused=vfio-pci,uio_pci_generic
131 0000:0b:00.0 'VMXNET3 Ethernet Controller' drv=vfio-pci unused=vmxnet3,uio_pci_generic
132 0000:13:00.0 'VMXNET3 Ethernet Controller' drv=vfio-pci unused=vmxnet3,uio_pci_generic
135 $ sudo /usr/local/vpp/vpp-config/scripts/dpdk-devbind.py --bind vfio-pci 0b:00.0
141 Now create the interface dynamically with following. The bind option must be
142 specified if pci is not already bound manually by above steps.
144 .. code-block:: console
146 $ sudo vppctl create interface vmxnet3 0000:0b:00.0 bind
147 $ sudo vppctl set interface state vmxnet3-0/b/0/0 up
152 If the interface needs to be deleted:
154 .. code-block:: console
156 $ sudo vppctl delete interface vmxnet3 <if-name>
161 Interface and ring information can be obtained with the command
162 **show vmxnet3 [if-name] [desc]**
166 .. code-block:: console
168 $ sudo vppctl show vmxnet3
169 Interface: vmxnet3-0/b/0/0 (ifindex 1)
171 PCI Address: 0000:0b:00.0
172 Mac Address: 00:50:56:88:63:be
175 Number of interrupts: 2
177 RX completion next index 786
178 RX completion generation flag 0x80000000
179 ring 0 size 4096 fill 4094 consume 785 produce 784
180 ring 1 size 4096 fill 4096 consume 0 produce 0
182 TX completion next index 216
183 TX completion generation flag 0x0
184 size 4096 consume 216 produce 245