netdev - Re: [net-next PATCH 00/29] Add support for the Intel FM10000 Ethernet Switch Host Interface

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Message-ID: <541C7475.8050800@intel.com>
Date:	Fri, 19 Sep 2014 11:22:45 -0700
From:	Alexander Duyck <alexander.h.duyck@...el.com>
To:	Alexei Starovoitov <alexei.starovoitov@...il.com>
CC:	Jamal Hadi Salim <jhs@...atatu.com>,
	"David S. Miller" <davem@...emloft.net>, nhorman@...hat.com,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	john fastabend <john.fastabend@...il.com>,
	matthew.vick@...el.com, jeffrey.t.kirsher@...el.com,
	sassmann@...hat.com
Subject: Re: [net-next PATCH 00/29] Add support for the Intel FM10000 Ethernet
 Switch Host Interface

On 09/19/2014 09:58 AM, Alexei Starovoitov wrote:
> On Fri, Sep 19, 2014 at 7:54 AM, Alexander Duyck
> <alexander.h.duyck@...el.com> wrote:
>>
>> Since the switch can support up to 9 of these we are treating the host
>> interface driver as though it is a NIC driver.  We need to usually ship
> 
> Am I reading it right that 9 hosts can be attached to this one physical device
> and they see it as different 'physical' nics ?
> 

No, there are up to 9 independent host interfaces that are attached to
the switch.  Each host device shows up as a separate PCI device capable
of SR-IOV.  If SR-IOV is enabled with 64 VFs then one Host interface
will appear as 1 PF PCI device, and 64 VF PCI devices.

Thanks,

Alex
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