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Date:      Mon, 13 Feb 2017 02:33:38 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-virtualization@FreeBSD.org
Subject:   [Bug 216493] [Hyper-V] Mellanox ConnectX-3 VF driver can't work when FreeBSD runs on Hyper-V 2016
Message-ID:  <bug-216493-27103-OHNP4nU2Zr@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-216493-27103@https.bugs.freebsd.org/bugzilla/>
References:  <bug-216493-27103@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=216493

Dexuan Cui <decui@microsoft.com> changed:

           What    |Removed                     |Added
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                 CC|                            |decui@microsoft.com

--- Comment #2 from Dexuan Cui <decui@microsoft.com> ---
Updates:

hselasky committed the 2 patches (D8867, D8868) into the HEAD last Friday.

Issue 1: No update.

Issue 2: 
Actually Linux version of the driver has the same (similar?) issue and I
reported it here:
https://www.spinics.net/lists/netdev/msg420136.html

Some people suspected that it failed to allocate a UAR, but after we increased
LOG_BAR_SIZE with mlxconfig from 3 (8MB) to 5 (32MB), the issue was still
there.

We'll continue to work on this.

Issue 3: No update.

Issue 4: 
It looks this may be a host side issue. on Live Migration, the host just
removes the VF from the guest by force suddenly. Working on this. 
But meanwhile, the VF driver should be improved to be more robust to cope with
this scenario.

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