[v3,0/6] generalize fpga_mgr_load

Message

Tom Rix May 24, 2021, 4:27 p.m. UTC

From: Tom Rix <[e-mail]>

A refactor of the fpga-manager to make space for the
functionality of the secure update in this thread.
https://lore.kernel.org/linux-fpga/[e-mail]/T/#mf3a1951d429a973c863eee079ed990c55056827c

Splits the reconfig write ops into its own ops structure and
then has an instance for the existing loading (reconfig) and the
secure update (reimage)

fpga_mgr_load uses a new bit, FPGA_MGR_REIMAGE, in fpga_info_info
to use either the reconfig or the reimage ops.

valid write op checking has moved to make the reimage path option.

Since fpga_image_info_alloc zalloc's the fpga_info_struct, the
reimage path will not be taken.

Stub in remimage support for dfl

Changes since v1:
- update op names changed from
  partial_update to reconfig
  full_update to reimage
- dropped the cancel() and get_error() ops.
- add FPGA_MGR_REIMAGE bit
- refactor fpga_mgr_load to use either update ops

Changes since v2:
- Fix a missed write op change
- Stub in dfl reimage

Tom Rix (6):
  fpga: generalize updating the card
  fpga: add FPGA_MGR_REIMAGE flag
  fpga: pass fpga_manager_update_ops to the fpga_manager_write functions
  fpga: defer checking for update ops until they are used
  fpga: use reimage ops in fpga_mgr_load()
  fpga: dfl: stub in reimaging

 drivers/fpga/altera-cvp.c        |  8 ++--
 drivers/fpga/altera-pr-ip-core.c |  8 ++--
 drivers/fpga/altera-ps-spi.c     |  8 ++--
 drivers/fpga/dfl-fme-mgr.c       | 38 ++++++++++++++---
 drivers/fpga/dfl-fme-pr.c        | 40 +++++++++++-------
 drivers/fpga/fpga-mgr.c          | 72 ++++++++++++++++++++------------
 drivers/fpga/ice40-spi.c         |  8 ++--
 drivers/fpga/machxo2-spi.c       |  8 ++--
 drivers/fpga/socfpga-a10.c       | 10 ++---
 drivers/fpga/socfpga.c           |  8 ++--
 drivers/fpga/stratix10-soc.c     |  8 ++--
 drivers/fpga/ts73xx-fpga.c       |  8 ++--
 drivers/fpga/xilinx-spi.c        |  8 ++--
 drivers/fpga/zynq-fpga.c         | 10 ++---
 drivers/fpga/zynqmp-fpga.c       |  8 ++--
 include/linux/fpga/fpga-mgr.h    | 35 +++++++++++-----
 include/uapi/linux/fpga-dfl.h    | 18 ++++++--
 17 files changed, 192 insertions(+), 111 deletions(-)