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From: David Miller <davem@davemloft.net>
To: ali@mellanox.com
Cc: ebiederm@xmission.com, ogerlitz@mellanox.com, roland@kernel.org,
	netdev@vger.kernel.org, sean.hefty@intel.com,
	erezsh@mellanox.co.il
Subject: Re: [PATCH V2 09/12] net/eipoib: Add main driver functionality
Date: Fri, 03 Aug 2012 17:05:58 -0700 (PDT)	[thread overview]
Message-ID: <20120803.170558.521297686027330433.davem@davemloft.net> (raw)
In-Reply-To: <501C669B.2030303@mellanox.com>

From: Ali Ayoub <ali@mellanox.com>
Date: Fri, 03 Aug 2012 17:02:35 -0700

> On 8/3/2012 3:39 PM, Ali Ayoub wrote:
>> On 8/3/2012 2:33 PM, David Miller wrote:
>>> From: Ali Ayoub <ali@mellanox.com>
>>> Date: Fri, 03 Aug 2012 13:31:35 -0700
>>>
>>>> With eIPoIB architecture, the VM sees standard Ethernet emulator,
>>>> allowing the administrator to enslave eIPoIB PIF to the vSwitch/vBridge
>>>> as if it was standard Ethernet. Other approaches that exposes IB QP to
>>>> the VM (with w/o bypassing the kernel) won't be possible with the
>>>> current emulators and management tools.
>>>
>>> So then fix the emulators and management tools to handle IB instead
>>> of adding this bogus new protocol?
>>>
>>> This new protocol seems to exist only because you don't want to have
>>> to enhance the emulators and tools, and I'm sorry that isn't a valid
>>> reason to do something like this.
>> 
>> This driver exists to allow the user to have an Ethernet interface on
>> top of a high-speed InfiniBand (IB) interconnect.
>> Users would like to use sockets API from the VM without re-writing their
>> applications on top of IB verbs, this driver meant to allow such a user
>> to do so.
>> 
>> Exposing IB emulators and having IB support in the management tools for
>> the VM/Hypervisor won't address the usecases that this driver meant for.
>> 
>> With this driver, existing VMs, and their existing IP applications, can
>> run as-is on InfiniBand network.
> 
> This driver exists to allow the user to have an Ethernet interface on
> top of a high-speed InfiniBand (IB) interconnect.
> Users would like to use sockets API from the VM without re-writing their
> applications on top of IB verbs, this driver meant to allow such a user
> to do so.
> 
> Exposing IB emulators and having IB support in the management tools for
> the VM/Hypervisor won't address the usecases that this driver meant for.
> 
> With this driver, existing VMs, and their existing IP applications, can
> run as-is on InfiniBand network.

Just saying the same thing twice doesn't make your argument stronger.

  reply	other threads:[~2012-08-04  0:05 UTC|newest]

Thread overview: 71+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-08-01 17:09 [PATCH V2 00/12] Add Ethernet IPoIB driver Or Gerlitz
2012-08-01 17:09 ` [PATCH V2 01/12] IB/ipoib: Add rtnl_link_ops support Or Gerlitz
2012-08-01 17:09 ` [PATCH V2 02/12] IB/ipoib: Add support for clones / multiple childs on the same partition Or Gerlitz
2012-08-01 17:09 ` [PATCH V2 03/12] include/linux: Add private flags for IPoIB interfaces Or Gerlitz
2012-08-01 17:09 ` [PATCH V2 04/12] IB/ipoib: Add support for acting as VIF Or Gerlitz
2012-08-01 17:09 ` [PATCH V2 05/12] net: Add ndo_set_vif_param operation to serve eIPoIB VIFs Or Gerlitz
2012-08-02  0:17   ` Ben Hutchings
2012-08-02  8:25     ` Erez Shitrit
2012-08-01 17:09 ` [PATCH V2 06/12] net/core: Add rtnetlink support to vif parameters Or Gerlitz
2012-08-02  0:20   ` Ben Hutchings
2012-08-02 15:29     ` Erez Shitrit
2012-08-01 17:09 ` [PATCH V2 07/12] net/eipoib: Add private header file Or Gerlitz
2012-08-01 17:09 ` [PATCH V2 08/12] net/eipoib: Add ethtool file support Or Gerlitz
2012-08-02  0:22   ` Ben Hutchings
2012-08-02  8:35     ` Erez Shitrit
2012-08-02 15:42       ` Ben Hutchings
2012-08-01 17:09 ` [PATCH V2 09/12] net/eipoib: Add main driver functionality Or Gerlitz
2012-08-02 17:15   ` Eric W. Biederman
2012-08-03 20:31     ` Ali Ayoub
2012-08-03 21:33       ` David Miller
2012-08-03 22:39         ` Ali Ayoub
2012-08-03 23:36           ` David Miller
2012-08-04 21:23             ` Or Gerlitz
2012-08-04 21:44               ` Or Gerlitz
2012-08-04 23:19                 ` Eric W. Biederman
2012-08-07  0:14             ` Ali Ayoub
2012-08-07  0:44               ` Eric W. Biederman
2012-08-07  1:21                 ` Re[2]: " Naoto MATSUMOTO
2012-08-15  9:10                   ` Re[3]: " Naoto MATSUMOTO
2012-08-07  3:33                 ` Eric W. Biederman
2012-08-08  6:04                   ` Or Gerlitz
2012-08-08  8:36                     ` Eric W. Biederman
2012-08-09  4:06                       ` Or Gerlitz
2012-08-12 14:05                         ` Michael S. Tsirkin
2012-08-07  3:37                 ` Joseph Glanville
2012-08-08  7:32                 ` Or Gerlitz
2012-08-08  9:17                   ` Eric W. Biederman
2012-08-09  4:34                     ` Or Gerlitz
2012-08-12 10:36                       ` Michael S. Tsirkin
2012-08-04  0:02           ` Ali Ayoub
2012-08-04  0:05             ` David Miller [this message]
2012-08-04  1:34             ` Eric W. Biederman
2012-08-04 21:33               ` Or Gerlitz
2012-08-05 18:50     ` Michael S. Tsirkin
2012-08-08  5:23       ` Or Gerlitz
2012-08-12 10:22         ` Michael S. Tsirkin
2012-08-12 13:09           ` Or Gerlitz
2012-08-12 13:41             ` Michael S. Tsirkin
2012-08-12 13:15           ` Or Gerlitz
2012-08-12 13:55             ` Michael S. Tsirkin
2012-08-12 14:13               ` Or Gerlitz
2012-08-12 20:54                 ` Michael S. Tsirkin
2012-08-14  8:44                   ` Or Gerlitz
2012-08-20 18:57                   ` Michael S. Tsirkin
2012-08-23  6:45                     ` Or Gerlitz
2012-08-14  7:41               ` Or Gerlitz
2012-08-12 10:54         ` Michael S. Tsirkin
2012-08-12 13:19           ` Or Gerlitz
2012-08-12 15:40         ` Eric W. Biederman
2012-08-13  8:33           ` Or Gerlitz
2012-08-13 16:08             ` Eric W. Biederman
2012-09-03 20:53       ` Or Gerlitz
2012-09-03 21:22         ` Michael S. Tsirkin
2012-09-04 18:50           ` Or Gerlitz
2012-09-04 19:31             ` Eric W. Biederman
2012-09-04 19:47               ` Or Gerlitz
2012-09-04 21:21             ` Michael S. Tsirkin
2012-09-04 18:57           ` Or Gerlitz
2012-08-01 17:09 ` [PATCH V2 10/12] net/eipoib: Add sysfs support Or Gerlitz
2012-08-01 17:09 ` [PATCH V2 11/12] net/eipoib: Add Makefile, Kconfig and MAINTAINERS entries Or Gerlitz
2012-08-01 17:09 ` [PATCH V2 12/12] IB/ipoib: Add support for transmission of skbs w.o dst/neighbour Or Gerlitz

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