netdev - Re: [PATCH net-next] liquidio: pass date and time info to NIC firmware

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Message-ID: <20170923151654.GC21228@lunn.ch>
Date:   Sat, 23 Sep 2017 17:16:54 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Felix Manlunas <felix.manlunas@...ium.com>
Cc:     davem@...emloft.net, netdev@...r.kernel.org,
        raghu.vatsavayi@...ium.com, derek.chickles@...ium.com,
        satananda.burla@...ium.com, manish.awasthi@...ium.com,
        veerasenareddy.burru@...ium.com
Subject: Re: [PATCH net-next] liquidio: pass date and time info to NIC
 firmware

On Fri, Sep 22, 2017 at 05:35:18PM -0700, Felix Manlunas wrote:
> From: Veerasenareddy Burru <veerasenareddy.burru@...ium.com>

This is kind of interesting. So you do this once. It could be before
the RTC driver has probed, so it is 1970. It could be before the NTP
daemon has started, and so the host clock will later jump, or stretch
time to gain synchronisation.

It seems like you should be periodically giving the time to the
firmware, not just once.

   Andrew