Jason Gunthorpe baa6d39663 fpga: Add scatterlist based programming ...

Requiring contiguous kernel memory is not a good idea, this is a limited
resource and allocation can fail under normal work loads.

This introduces a .write_sg op that supporting drivers can provide
to DMA directly from dis-contiguous memory and a new entry point
fpga_mgr_buf_load_sg that users can call to directly provide page
lists.

The full matrix of compatibility is provided, either the linear or sg
interface can be used by the user with a driver supporting either
interface.

A notable change for drivers is that the .write op can now be called
multiple times.

Signed-off-by: Jason Gunthorpe <[email protected]>
Acked-by: Alan Tull <[email protected]>
Acked-by: Moritz Fischer <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

2017-02-10 15:20:44 +01:00

..

fpga-bridge.h

fpga: add fpga bridge framework

2016-11-10 17:03:35 +01:00

fpga-mgr.h

fpga: Add scatterlist based programming

2017-02-10 15:20:44 +01:00