netdev - Re: [patch net-next 3/4] mlxsw: Add interface to access registers and process events

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Message-ID: <CAE4R7bAQ+AAEZL2pnbM5w-dFqxh_8VmUeG4Dqg7Ey-g9XpfTsw@mail.gmail.com>
Date:	Thu, 23 Jul 2015 22:13:42 -0700
From:	Scott Feldman <sfeldma@...il.com>
To:	Jiri Pirko <jiri@...nulli.us>
Cc:	Netdev <netdev@...r.kernel.org>,
	"David S. Miller" <davem@...emloft.net>, idosch@...lanox.com,
	eladr@...lanox.com,
	"ogerlitz@...lanox.com" <ogerlitz@...lanox.com>,
	Roopa Prabhu <roopa@...ulusnetworks.com>,
	Florian Fainelli <f.fainelli@...il.com>,
	Thomas Graf <tgraf@...g.ch>,
	Alexei Starovoitov <ast@...mgrid.com>,
	Jamal Hadi Salim <jhs@...atatu.com>,
	Daniel Borkmann <daniel@...earbox.net>,
	john fastabend <john.fastabend@...il.com>,
	"simon.horman@...ronome.com" <simon.horman@...ronome.com>,
	John Linville <linville@...driver.com>,
	Andy Gospodarek <andy@...yhouse.net>,
	Shrijeet Mukherjee <shm@...ulusnetworks.com>,
	"nhorman@...driver.com" <nhorman@...driver.com>,
	Jiri Pirko <jiri@...lanox.com>
Subject: Re: [patch net-next 3/4] mlxsw: Add interface to access registers and
 process events

On Thu, Jul 23, 2015 at 8:43 AM, Jiri Pirko <jiri@...nulli.us> wrote:
> From: Ido Schimmel <idosch@...lanox.com>
>
> Add the ability to construct mailbox-style register access messages
> called EMADs with provisions to construct and parse the registers payload.
> Implement EMAD transaction layer which is responsible for the reliable
> transmission of EMADs.
> Also, add an infrastructure used by the switch driver to register for
> particular events generated by the device.

What is this EMADs used for?  Is this for intra-switch or inter-switch
communications?
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