Logan Gunthorpe 717146a2a8 ntb_tool: Postpone memory window initialization for the user ...

In order to make the interface closer to the raw NTB API, this commit
changes memory windows so they are not initialized on link up.
Instead, the 'peer_trans*' debugfs files are introduced. When read,
they return information provided by ntb_mw_get_range. When written,
they create a buffer and initialize the memory window. The
value written is taken as the requested size of the buffer (which
is then rounded for alignment). Writing a value of zero frees the buffer
and tears down the memory window translation. The 'peer_mw*' file is
only created once the memory window translation is setup by the user.

Additionally, it was noticed that the read and write functions for the
'peer_mw*' files should have checked for a NULL pointer.

Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Acked-by: Allen Hubbe <Allen.Hubbe@emc.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>

2016-08-05 10:21:07 -04:00

..

Kconfig

ntb: ntb perf tool

2016-01-17 22:08:05 -05:00

Makefile

ntb: ntb perf tool

2016-01-17 22:08:05 -05:00

ntb_perf.c

ntb_perf: Wait for link before running test

2016-08-05 10:21:07 -04:00

ntb_pingpong.c

NTB: Add ping pong test client

2015-07-04 14:07:42 -04:00

ntb_tool.c

ntb_tool: Postpone memory window initialization for the user

2016-08-05 10:21:07 -04:00