Re: [v2 00/11] Freescale DPAA QBMan Drivers
From: Scott Wood
Date: Mon Aug 24 2015 - 18:35:35 EST
On Wed, 2015-08-12 at 16:14 -0400, Roy Pledge wrote:
> The Freescale Data Path Acceleration Architecture (DPAA) is a set of
> hardware components on specific QorIQ multicore processors. This
> architecture provides the infrastructure to support simplified sharing of
> networking interfaces and accelerators by multiple CPU cores and the
> The Queue Manager (QMan) is a hardware queue management block that allows
> software and accelerators on the datapath to enqueue and dequeue frames in
> order to communicate.
> The Buffer Manager (BMan) is a hardware buffer pool management block that
> allows software and accelerators on the datapath to acquire and release
> buffers in order to build frames.
> This patch set introduces the QBMan driver code that configures initializes
> the QBMan hardware and provides APIs for software to use the frame queues
> and buffer pools the blocks provide. These drivers provide the base
> fuctionality for software to communicate with the other DPAA accelerators
> on Freescale QorIQ processors.
> Changes from v1:
> - Cleanup Kconfig options
> - Changed base QMan and BMan drivers to only be buit in.
> Will add loadable support in future patch
CONFIG_FSL_BMAN is tristate -- is it not expected to work if you select 'm'?
> - Replace panic() call with WARN_ON()
panic() is still there.
> > - Replaced PowerPC specific IO accessors with platform independent versions
PowerPC accessors, and other PPC-specfic things like cache flushing and
memory barriers, are still there.
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