vtionet - Virtio network driver
/dev/vtionet
The vtionet Ethernet driver is a multi-threaded, loadable, clonable, GLD-based STREAMS driver supporting the Data Link Provider Interface, dlpi(4P), for Virtio network device instances.
The vtionet driver supports multiple Virtio network device instances installed within the system.
The vtionet driver functions include including Virtio queue and buffer initialization, frame transmit and receive, promiscous and multicast support, and error recovery and reporting.
The cloning character-special device, /dev/vtionet, is used to access all Virtio network device instances installed within the system.
The vtionet driver is managed by the dladm(8) command line utility, which allows VLANs to be defined on top of vtionet instances and for vtionet instances to be aggregated. See dladm(8) for more details.
You must send an explicit DL_ATTACH_REQ message to associate the opened stream with a particular device (PPA). The PPA ID is interpreted as an unsigned integer data type and indicates the corresponding device instance (unit) number. The driver returns an error (DL_ERROR_ACK) if the PPA field value does not correspond to a valid device instance number.
The values returned by the driver in the DL_INFO_ACK primitive in response to the DL_INFO_REQ are as follows:
Maximum SDU (with jumbo frame) is as high as 65535.
Minimum SDU is 0. The driver pads to the mandatory 60-octet minimum packet size.
The dlsap address length is 8.
MAC type is DL_ETHER.
The sap length value is −2, means that the physical address component is followed immediately by a 2-byte sap component within the DLSAP address.
The broadcast address value is Ethernet/IEEE broadcast address (FF:FF:FF:FF:FF:FF).
The vtionet driver is managed by the dladm(8) command line utility.
The vtionet driver always reports link speed of 1Gb/s and full duplex mode. This does not reflect the speed and mode of the host interface or any rate caps.
Character special device.
Driver configuration file.
x86 kernel module.
See attributes(7) for descriptions of the following attributes:
|
streamio(4I), dlpi(4P), driver.conf(5), attributes(7), dladm(8), netstat(8), vtio(4D)
Writing Device Drivers in Oracle Solaris 11.4
Managing Network Virtualization and Network Resources in Oracle Solaris 11.4
Managing Network Datalinks in Oracle Solaris 11.4
https://docs.oasis-open.org/virtio/virtio/v1.1/virtio-v1.1.html