[ewg] Re: [PATCH 3/14] nes: connection manager routines
Steve Wise
swise at opengridcomputing.com
Thu Aug 9 14:06:05 PDT 2007
Glenn Grundstrom wrote:
> This code is far from a TCP stack. It's main purpose is to exchange
> RDMA MPA request/response messages that are required by the iWarp specs
> and therefore needed by our hardware. All RNIC hardware vendors need
> this MPA message exchange, including those already accepted into
> kernel.org. Do you have an alternative suggestion?
>
For the record, the existing linux RNICS don't exactly work this way:
Ammasso handles all TCP connection setup and MPA negotiation in HW/FW.
The connection setup interface between the RNIC and host driver are
strictly for RDMA connections.
Chelsio has a message based interface to the HW/FW for establishing
TCP connections and exchanging data in streaming mode. No TCP
processing is done in the driver.
Steve.
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