[dpdk-users] Support for more RSS hash types in vmxnet3
Jay Miller
jay.miller at oracle.com
Tue Aug 21 19:57:08 CEST 2018
It's clear that the vmxnet3 driver (even as of 18.08) supports just a
subset of RSS hash types:
#define VMXNET3_RSS_OFFLOAD_ALL ( \
ETH_RSS_IPV4 | \
ETH_RSS_NONFRAG_IPV4_TCP | \
ETH_RSS_IPV6 | \
ETH_RSS_NONFRAG_IPV6_TCP)
Are there plans to add support for other hash types (like
ETH_RSS_NONFRAG_IPV4_UDP), or is this an architectural limitation of
vmxnet3?
The documentation could be more explicit about these limitations:
>>
>> 36.2. Features and Limitations of VMXNET3 PMD
>>
>> In release 1.6.0, the VMXNET3 PMD provides the basic functionality of
>> packet reception and transmission. There are several options
>> available for filtering packets at VMXNET3 device level including:
>>
>> 1. *MAC Address based filtering*:
>> * Unicast, Broadcast, All Multicast modes - SUPPORTED BY DEFAULT
>> * Multicast with Multicast Filter table - NOT SUPPORTED
>> * Promiscuous mode - SUPPORTED
>> * *RSS based load balancing between queues - SUPPORTED*
>>
>
Thanks,
J
--
Jay Miller | Mobile: +1.781.258.7446
Oracle Communications Global Business Unit
100 Crosby Drive | Bedford, MA 01730
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