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13 Commits

Author SHA1 Message Date
Carl Delsey
2a6e50d2ce Remove contractions. 
Approved by:	jimharris
Sponsored by:	Intel
 2013-09-05 23:14:27 +00:00
Carl Delsey
538779c1a0 Only tear down interface and transport if they've been successfully setup. 
Approved by:	jimharris
Sponsored by:	Intel
 2013-09-05 23:12:58 +00:00
Carl Delsey
218b961f0e Workaround an issue with hardware by accessing remote device through mem 
window.

Approved by:	jimharris
Sponsored by:	Intel
 2013-09-05 23:11:11 +00:00
Carl Delsey
b0f569217d Simplify register access macros by removing one level of indirection. 
Approved by:	jimharris
Sponsored by:	Intel
 2013-09-05 23:08:22 +00:00
Carl Delsey
ff53f82bfd Cleaning up spacing and making hex value case consistent. 
Approved by:	jimharris
Sponsored by:	Intel
 2013-09-05 23:06:25 +00:00
Carl Delsey
bfb4daf19d Implement workaround for IvyTown 4K BAR size issue. 
Approved by:	jimharris
Sponsored by:	Intel
 2013-09-05 23:04:36 +00:00
Carl Delsey
93d43573eb Simplifying bus alloc resource call since we only need the default values. 
Approved by:	jimharris
Sponsored by:	Intel
 2013-09-05 23:02:43 +00:00
Carl Delsey
e70d7a7c79 Add support for per device features and workarounds. 
Approved by:	jimharris
Sponsored by:	Intel
 2013-09-05 23:00:59 +00:00
Carl Delsey
87a7a3f08d Restructure the PCI bar initialization code in anticipation of upcoming 
bug fixes.

Approved by:	jimharris
Sponsored by:	Intel
 2013-09-05 22:59:18 +00:00
Carl Delsey
64d957247f Fix name change from ntb_transport to if_ntb. A few places were 
overlooked.

Approved by:	jimharris
Sponsored by:	Intel
 2013-09-05 22:56:52 +00:00
Carl Delsey
12c5baf9f5 Throw a bit to enable the link to come up on Xeon. 
Approved by:	jimharris
Sponsored by:	Intel
 2013-09-05 22:52:40 +00:00
Carl Delsey
d43c0fbae1 Add some logging to ntb link up. 
Approved by:	jimharris
Sponsored by:	Intel
 2013-09-05 22:46:48 +00:00
Carl Delsey
e47937d1b7 Add a new driver to support the Intel Non-Transparent Bridge(NTB). 
The NTB allows you to connect two systems with this device using a PCI-e
link. The driver is made of two modules:
 - ntb_hw which is a basic hardware abstraction layer for the device.
 - if_ntb which implements the ntb network device and the communication
   protocol.

The driver is limited at the moment to CPU memcpy instead of using DMA, and
only Back-to-Back mode is supported. Also the network device isn't full
featured yet. These changes will be coming soon. The DMA change will also
bring in the ioat driver from the project branch it is on now.

This is an initial port of the GPL/BSD Linux driver contributed by Jon Mason
from Intel. Any bugs are my contributions.

Sponsored by: Intel
Reviewed by: jimharris, joel (man page only)
Approved by: jimharris (mentor)
 2013-04-29 22:48:53 +00:00