Re: [PATCH 1/8] qla2xxx: Add iIDMA support.

Christoph Hellwig
2006-10-10T09:30:00Z

On Mon, Oct 02, 2006 at 12:00:43PM -0700, Andrew Vasquez wrote:
> iIDMA (Intelligent Interleaved Direct Memory Access) allows for
> the HBA hardware to send FC frames at the rate at which they can
> be received by a target device. By taking advantage of the
> higher link rate, the HBA can maximize bandwidth utilization in a
> heterogeneous multi-speed SAN.
>
> Within a fabric topology, port speed detection is done via a Name
> Server command (GFPN_ID) followed by a Fabric Management command
> (GPSC). In an FCAL/N2N topology, port speed is based on the HBA
> link-rate.

Looks good to me.