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Differential D12174

if: Add ioctls to get RSS key and hash type/function.
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Authored by sepherosa_gmail.com on Aug 31 2017, 5:26 AM.
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adrian
rwatson
glebius
• hselasky
gallatin
Group Reviewers
transport
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rS323170: if: Add ioctls to get RSS key and hash type/function.
Summary

It will be needed by hn(4) to configure its RSS key and hash type/function in the transparent VF mode in order to match VF's RSS settings. The description of the transparent VF mode and the RSS hash value issue are here:
https://svnweb.freebsd.org/base?view=revision&revision=322299
https://svnweb.freebsd.org/base?view=revision&revision=322485

These are generic enough to promise two independent IOCs instead of abusing SIOCGDRVSPEC.

Setting RSS key and hash type/function is a different story, which probably requires more discussion.

Two drivers are modified to support these two IOCs:
https://reviews.freebsd.org/D12175
https://reviews.freebsd.org/D12176

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rS FreeBSD src repository - subversion
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head/
sys/
net/
36 lines
2 lines
sys/
4 lines

Diff 32661

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head/sys/net/if.h

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head/sys/net/if.c

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head/sys/sys/sockio.h

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