User Manual

Rev 4.70
Mellanox Technologies
188
C.6.3 RoCE Options
*RssOrVmqPreference 0 Specifies whether VMQ capabilities should be enabled instead of
receive-side scaling (RSS) capabilities.
The valid values are:
• 0: Report RSS capabilities
• 1: Report VMQ capabilities
Note: This registry value is not exposed via the UI.
*VMQLookaheadSplit 1 Specifies whether the driver enables or disables the ability to split
the receive buffers into lookahead and post-lookahead buffers.
The valid values are:
• 0: disable
• 1: enable
*VMQVlanFiltering 1 Specifies whether the device enables or disables the ability to filter
network packets by using the VLAN identifier in the media access
control (MAC) header.
The valid values are:
• 0: disable
• 1: enable
MaxNumVmqs 127 The number of VMQs that the device supports in parallel. This
parameter can effect memory consumption of the interface, since
for each VMQ, the driver creates a separate receive ring and an
allocate buffer for it.
In order to minimize the memory consumption, one can reduce the
number of VMs that use VMQ in parallel. However, this can affect
the performance.
The valid values are 1 up to 127.
Note: This registry value is not exposed via the UI.
MaxNumMacAddrFil-
ters
127 The number of different MAC addresses that the physical port sup-
ports.
This registry key affects the number of supported MAC addresses
that is reported to the OS.
The valid values are 1 up to 127.
Note: This registry value is not exposed via the UI.
MaxNumVlanFilters 127 The number of VLANs that are supported for each port.
The valid values are 1 up to 127.
Note: This registry value is not exposed via the UI.
Value Name Default Value Description