[PATCH v4 00/15] NTB: Add full multi-port API support to the test drivers

[Serge Semin]

The multi-port NTB API was introduced in kernel 4.13 as well as the
first driver for the true multi-port devices of IDT PCIe-switches
series. But the test drivers still were left almost unchanged. Yes,
they didn't fail being used with new NTB API, but they only worked
with two-ports NTB devices. This patchset is intended to fix the
issue by amending the NTB test drivers and script so they would be
fully compatible with multi-port NTB API.

Additionally I found a few NTB subsystem issues while developing the
submitted patches. So they are also fixed in this patchset.

The patchset is applied on top of the recent Jon Mason's repo state:
https://github.com/jonmason/ntb
Particularly the "ntb/ntb-next" branch is used. The last commit hash
had been:
commit <c47963de5204> ("ntb_hw_switchtec: Force down the link before")

Serge Semin (15):
  NTB: Rename NTB messaging API methods
  NTB: Set dma mask and dma coherent mask to NTB devices
  NTB: Fix UB/bug in ntb_mw_get_align()
  NTB: ntb_pp: Add full multi-port NTB API support
  NTB: ntb_tool: Add full multi-port NTB API support
  NTB: ntb_perf: Add full multi-port NTB API support
  NTB: ntb_test: Safely use paths with whitespace
  NTB: ntb_test: Add ntb_tool port tests
  NTB: ntb_test: Update ntb_tool link tests
  NTB: ntb_test: Update ntb_tool DB tests
  NTB: ntb_test: Update ntb_tool Scratchpad tests
  NTB: ntb_test: Add ntb_tool Message tests
  NTB: ntb_test: Update ntb_tool MW tests
  NTB: ntb_test: Update ntb_perf tests
  NTB: ntb_hw_idt: Set NTB_TOPO_SWITCH topology

 drivers/ntb/hw/amd/ntb_hw_amd.c         |    4 +
 drivers/ntb/hw/idt/ntb_hw_idt.c         |   37 +-
 drivers/ntb/hw/intel/ntb_hw_intel.c     |    4 +
 drivers/ntb/ntb.c                       |    1 -
 drivers/ntb/test/ntb_perf.c             | 1820 +++++++++++++++++++++----------
 drivers/ntb/test/ntb_pingpong.c         |  447 +++++---
 drivers/ntb/test/ntb_tool.c             | 1820 +++++++++++++++++++++----------
 include/linux/ntb.h                     |   36 +-
 tools/testing/selftests/ntb/ntb_test.sh |  307 ++++--
 9 files changed, 3018 insertions(+), 1458 deletions(-)

-- 
2.12.0