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From: "Vishwanathapura, Niranjana" <niranjana.vishwanathapura-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
To: Bart Van Assche <Bart.VanAssche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
Cc: "dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org"
	<dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	"sean.hefty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org"
	<sean.hefty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
	"netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	"linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	"dennis.dalessandro-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org"
	<dennis.dalessandro-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
	"ira.weiny-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org"
	<ira.weiny-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Subject: Re: [RFC v3 00/11] HFI Virtual Network Interface Controller (VNIC)
Date: Tue, 7 Feb 2017 16:54:16 -0800	[thread overview]
Message-ID: <20170208005416.GA76793@knc-06.sc.intel.com> (raw)
In-Reply-To: <1486504716.2581.8.camel-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>

On Tue, Feb 07, 2017 at 09:58:50PM +0000, Bart Van Assche wrote:
>On Tue, 2017-02-07 at 21:44 +0000, Hefty, Sean wrote:
>> This is Ethernet - not IP - encapsulation over a non-InfiniBand device/protocol.
>
>That's more than clear from the cover letter. In my opinion the cover letter
>should explain why it is considered useful to have such a driver upstream
>and what the use cases are of encapsulating Ethernet frames inside RDMA
>packets.
>

We believe on our HW, HFI VNIC design gives better hardware resource usage 
which is also scalable and hence room for better performance.
Also as evident in the cover letter, it gives us better manageability by 
defining virtual Ethernet switches overlaid on the fabric and
use standard Ethernet support provided by Linux.

Niranjana
>
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  parent reply	other threads:[~2017-02-08  0:54 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-02-07 20:22 [RFC v3 00/11] HFI Virtual Network Interface Controller (VNIC) Vishwanathapura, Niranjana
2017-02-07 20:23 ` [RFC v3 03/11] IB/hfi-vnic: Virtual Network Interface Controller (VNIC) netdev Vishwanathapura, Niranjana
2017-02-07 20:23 ` [RFC v3 05/11] IB/hfi-vnic: VNIC statistics support Vishwanathapura, Niranjana
2017-02-07 20:23 ` [RFC v3 06/11] IB/hfi-vnic: VNIC MAC table support Vishwanathapura, Niranjana
2017-02-07 20:23 ` [RFC v3 07/11] IB/hfi-vnic: VNIC Ethernet Management Agent (VEMA) interface Vishwanathapura, Niranjana
2017-02-07 20:23 ` [RFC v3 08/11] IB/hfi-vnic: VNIC Ethernet Management Agent (VEMA) function Vishwanathapura, Niranjana
2017-02-07 20:23 ` [RFC v3 09/11] IB/hfi1: HFI_VNIC RDMA netdev support Vishwanathapura, Niranjana
     [not found]   ` <1486498990-76562-10-git-send-email-niranjana.vishwanathapura-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-02-08  4:06     ` Parav Pandit
2017-02-08 18:21       ` Vishwanathapura, Niranjana
2017-02-07 20:23 ` [RFC v3 10/11] IB/hfi1: Virtual Network Interface Controller (VNIC) HW support Vishwanathapura, Niranjana
2017-02-07 20:23 ` [RFC v3 11/11] IB/hfi1: VNIC SDMA support Vishwanathapura, Niranjana
     [not found] ` <1486498990-76562-1-git-send-email-niranjana.vishwanathapura-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-02-07 20:23   ` [RFC v3 01/11] IB/hfi-vnic: Virtual Network Interface Controller (VNIC) documentation Vishwanathapura, Niranjana
     [not found]     ` <1486498990-76562-2-git-send-email-niranjana.vishwanathapura-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-02-08 17:00       ` Bart Van Assche
     [not found]         ` <1486573231.16026.1.camel-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2017-02-23  7:24           ` Vishwanathapura, Niranjana
2017-02-07 20:23   ` [RFC v3 02/11] IB/hfi-vnic: Virtual Network Interface Controller (VNIC) interface Vishwanathapura, Niranjana
2017-02-07 21:19     ` Jason Gunthorpe
     [not found]       ` <20170207211901.GB28922-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2017-02-07 22:06         ` Vishwanathapura, Niranjana
2017-02-07 22:19           ` Jason Gunthorpe
     [not found]             ` <20170207221925.GA30579-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2017-02-08  1:04               ` Vishwanathapura, Niranjana
2017-02-08  6:54         ` Leon Romanovsky
2017-02-08 17:29           ` Jason Gunthorpe
2017-02-08  0:43     ` Parav Pandit
     [not found]       ` <VI1PR0502MB3008911E9587F4C004BFEF13D1420-o1MPJYiShExKsLr+rGaxW8DSnupUy6xnnBOFsp37pqbUKgpGm//BTAC/G2K4zDHf@public.gmane.org>
2017-02-08  1:12         ` Vishwanathapura, Niranjana
2017-02-07 20:23   ` [RFC v3 04/11] IB/hfi-vnic: VNIC Ethernet Management (EM) structure definitions Vishwanathapura, Niranjana
2017-02-07 20:36   ` [RFC v3 00/11] HFI Virtual Network Interface Controller (VNIC) Leon Romanovsky
     [not found]     ` <20170207203649.GW6005-U/DQcQFIOTAAJjI8aNfphQ@public.gmane.org>
2017-02-07 21:00       ` Hefty, Sean
2017-02-07 21:43         ` Vishwanathapura, Niranjana
     [not found]           ` <20170207214303.GA76652-wPcXA7LoDC+1XWohqUldA0EOCMrvLtNR@public.gmane.org>
2017-02-08  5:18             ` Leon Romanovsky
2017-02-08  5:30         ` Leon Romanovsky
2017-02-07 21:28   ` Bart Van Assche
2017-02-07 21:44     ` Hefty, Sean
2017-02-07 21:58       ` Bart Van Assche
     [not found]         ` <1486504716.2581.8.camel-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2017-02-08  0:54           ` Vishwanathapura, Niranjana [this message]
     [not found]             ` <20170208005416.GA76793-wPcXA7LoDC+1XWohqUldA0EOCMrvLtNR@public.gmane.org>
2017-02-08  1:09               ` Bart Van Assche
2017-02-08  7:01                 ` Weiny, Ira
2017-02-08 17:21                   ` Hefty, Sean
2017-02-08 17:45               ` Jason Gunthorpe
2017-02-12 13:26   ` Liran Liss
2017-02-13 17:09     ` Jason Gunthorpe
     [not found]       ` <20170213170935.GD25430-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2017-02-22  8:43         ` Vishwanathapura, Niranjana

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