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
> accelerators.
> 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.


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at