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From: Elad Raz <eladr@mellanox.com>
To: Scott Feldman <sfeldma@gmail.com>
Cc: Jiri Pirko <jiri@resnulli.us>, Netdev <netdev@vger.kernel.org>,
	"David S. Miller" <davem@davemloft.net>,
	Ido Schimmel <idosch@mellanox.com>,
	Or Gerlitz <ogerlitz@mellanox.com>,
	Roopa Prabhu <roopa@cumulusnetworks.com>,
	"Florian Fainelli" <f.fainelli@gmail.com>,
	Thomas Graf <tgraf@suug.ch>,
	"Alexei Starovoitov" <ast@plumgrid.com>,
	Jamal Hadi Salim <jhs@mojatatu.com>,
	"Daniel Borkmann" <daniel@iogearbox.net>,
	john fastabend <john.fastabend@gmail.com>,
	"simon.horman@netronome.com" <simon.horman@netronome.com>,
	John Linville <linville@tuxdriver.com>,
	Andy Gospodarek <andy@greyhouse.net>,
	"Shrijeet Mukherjee" <shm@cumulusnetworks.com>,
	"nhorman@tuxdriver.com" <nhorman@tuxdriver.com>,
	Jiri Pirko <jiri@mellanox.com>,
	Matty Kadosh <mattyk@mellanox.com>
Subject: Re: [patch net-next 3/4] mlxsw: Add interface to access registers and process events
Date: Fri, 24 Jul 2015 06:48:59 +0000	[thread overview]
Message-ID: <6CDA9E80-6111-4BEF-9DB0-1CD08AA8BC2A@mellanox.com> (raw)
In-Reply-To: <CAE4R7bAQ+AAEZL2pnbM5w-dFqxh_8VmUeG4Dqg7Ey-g9XpfTsw@mail.gmail.com>



Sent from my iPhone

> On Jul 24, 2015, at 08:14, Scott Feldman <sfeldma@gmail.com> wrote:
> 
>> On Thu, Jul 23, 2015 at 8:43 AM, Jiri Pirko <jiri@resnulli.us> wrote:
>> From: Ido Schimmel <idosch@mellanox.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?

Ethernet management datagram.
It's command encoding wrap as a packet. It used for host interface communication as well as multi-silicon support.

  parent reply	other threads:[~2015-07-24  7:03 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-23 15:43 [patch net-next 0/4] Introduce Mellanox Technologies Switch ASICs switchdev drivers Jiri Pirko
2015-07-23 15:43 ` [patch net-next 1/4] mlxsw: Introduce Mellanox switch driver core Jiri Pirko
2015-07-23 15:43 ` [patch net-next 2/4] mlxsw: Add PCI bus implementation Jiri Pirko
2015-07-24  4:52   ` Scott Feldman
2015-07-24  5:30     ` Jiri Pirko
2015-07-26  5:15   ` Scott Feldman
2015-07-26  6:49     ` Jiri Pirko
2015-07-23 15:43 ` [patch net-next 3/4] mlxsw: Add interface to access registers and process events Jiri Pirko
2015-07-23 21:12   ` Andy Gospodarek
2015-07-24  5:24     ` Jiri Pirko
2015-07-24 12:09       ` Andy Gospodarek
2015-07-24  5:13   ` Scott Feldman
2015-07-24  5:18     ` Jiri Pirko
2015-07-24  6:48     ` Elad Raz [this message]
2015-07-23 15:43 ` [patch net-next 4/4] mlxsw: Introduce Mellanox SwitchX-2 ASIC support Jiri Pirko
2015-07-23 17:19   ` Alexander Duyck
2015-07-23 19:42     ` Jiri Pirko
2015-07-26  2:45   ` Scott Feldman
2015-07-26  7:10     ` Jiri Pirko
2015-07-26 17:14       ` Jiri Pirko
2015-07-27  6:17         ` Rosen, Rami
2015-07-28 18:06           ` Jiri Pirko
2015-07-24  0:03 ` [patch net-next 0/4] Introduce Mellanox Technologies Switch ASICs switchdev drivers Scott Feldman
2015-07-24  0:38   ` Rustad, Mark D
2015-07-24  5:38   ` Jiri Pirko
2015-07-27  6:51 ` David Miller
2015-07-27 20:21 ` Scott Feldman
2015-07-27 20:27   ` Jiri Pirko
2015-07-27 21:21     ` Florian Fainelli

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