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Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):
if_vte_load="YES"
The RDC R6040 has integrated 10/100 PHY for 10/100Mbps support in full or half-duplex. The controller supports interrupt moderation mechanism, a 64-bit multicast hash filter, VLAN over-size frame and four station addresses. The vte device driver uses three station addresses out of four as perfect multicast filter.
The vte driver supports the following media types:
| autoselect | Enable autoselection of the media type and options. The user can manually override the autoselected mode by adding media options to rc.conf(5). |
| 10baseT/UTP | |
| Set 10Mbps operation. | |
| 100baseTX | Set 100Mbps (Fast Ethernet) operation. |
The vte driver supports the following media options:
| full-duplex | |
| Force full duplex operation. | |
| half-duplex | |
| Force half duplex operation. | |
For more information on configuring this device, see ifconfig(8).
| hw.vte.tx_deep_copy | |
| The RDC R6040 controller has no auto-padding support for short frames and the controller's DMA engine does not have capability to handle multiple buffers for a TX frame such that driver has to create a single contiguous TX buffer. This hardware limitation leads to poor TX performance since most of CPU cycles are wasted on both de-fragmenting mbuf chains and padding. This tunable enables deep copy operation for TX frames such that driver will spend less CPU cycles in de-fragmentation with the cost of extra TX buffer memory. The default value is 1 to use deep copy. | |
| dev.vte.%d.rx_mod | |
| Maximum number of packets to fire RX completion interrupt. The accepted range is 0 to 15, the default is 15. | |
| dev.vte.%d.tx_mod | |
| Maximum number of packets to fire TX completion interrupt. The accepted range is 0 to 15, the default is 15. | |
| dev.vte.%d.stats | |
| Show hardware MAC statistics maintained in driver. | |
DM&P Electronics Inc. Vortex86,
| VTE (4) | December 30, 2010 |
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