[Bug 235147] em(4) driver not working for Intel 82583V Gigabit chip

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=235147

Krzysztof Galazka <krzysztof.galazka at intel.com> changed:

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                 CC|                            |krzysztof.galazka at intel.com

--- Comment #4 from Krzysztof Galazka <krzysztof.galazka at intel.com> ---
(In reply to Joshua Kinard from comment #1)
According to datasheet
(https://www.intel.com/content/www/us/en/embedded/products/networking/82583v-gbe-controller-datasheet.html)
82583V supports only MSI and legacy interrupts. That might be the cause why
it's not working when iflib tries to use MSI-X. I think this patch
https://reviews.freebsd.org/rS343864 in 12-STABLE should fix that.

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