netdev - Re: [PATCH 1/2] [for 4.13] net: qcom/emac: disable flow control autonegotiation by default

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Message-Id: <20170802.113629.1593218394678804041.davem@davemloft.net>
Date:   Wed, 02 Aug 2017 11:36:29 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     timur@...eaurora.org
Cc:     netdev@...r.kernel.org
Subject: Re: [PATCH 1/2] [for 4.13] net: qcom/emac: disable flow control
 autonegotiation by default

From: Timur Tabi <timur@...eaurora.org>
Date: Wed, 2 Aug 2017 13:23:18 -0500

> It's practically impossible to overload the chip such that it can't
> process the incoming packets fast enough.  I don't know of any
> real-world situation where the EMAC needs to transmit pause frames.

Slow cpus or very expensive stack operations can cause this, it's not
a property of the EMAC chip at all.