[Bug 215101] [ixgbe] Intel X552 SFP+ fails to initialize when no SFP module is plugged in
bugzilla-noreply at freebsd.org
bugzilla-noreply at freebsd.org
Tue Dec 6 16:39:21 UTC 2016
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=215101
Bug ID: 215101
Summary: [ixgbe] Intel X552 SFP+ fails to initialize when no
SFP module is plugged in
Product: Base System
Version: CURRENT
Hardware: amd64
OS: Any
Status: New
Severity: Affects Many People
Priority: ---
Component: kern
Assignee: freebsd-bugs at FreeBSD.org
Reporter: mike at belopuhov.com
CC: freebsd-amd64 at FreeBSD.org
CC: freebsd-amd64 at FreeBSD.org
Created attachment 177725
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=177725&action=edit
Fix
Due to the insufficient error handling Intel X552 SFP+ (8086:15ac)
will fail to initialize on boot when no modules are plugged in and
become completely unusable afterwards.
I have discovered this bug on OpenBSD when updating our driver so
there's a chance that this is not an issue on FreeBSD (I haven't
tested), so you may consider this just a heads up.
I'm attaching the fix that makes it operational on OpenBSD. This
chunk is based on the similar one for 82599. Setting PHY type to
"ixgbe_phy_none" will come in handy during "ifconfig up" since
ixgbe_init[_locked] will re-do the PHY/SFP initialization if the
PHY type has been previously set to "none".
Cheers,
Mike
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