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Date: Fri, 03 Aug 2012 15:39:36 -0700 From: Ali Ayoub <ali@...lanox.com> To: David Miller <davem@...emloft.net> CC: ebiederm@...ssion.com, ogerlitz@...lanox.com, roland@...nel.org, netdev@...r.kernel.org, sean.hefty@...el.com, erezsh@...lanox.co.il Subject: Re: [PATCH V2 09/12] net/eipoib: Add main driver functionality On 8/3/2012 2:33 PM, David Miller wrote: > From: Ali Ayoub <ali@...lanox.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. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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