redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

NTB: switchtec_ntb: Update switchtec documentation with notes for NTB 

The switchtec_ntb driver has a couple requirements on the switchec's
hardware configuration so we add these notes to the documentation.

Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Stephen Bates <sbates@raithlin.com>
Reviewed-by: Kurt Schwemmer <kurt.schwemmer@microsemi.com>
Acked-by: Allen Hubbe <Allen.Hubbe@dell.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
hifive-unleashed-5.1
Logan Gunthorpe 2017-08-03 12:19:54 -06:00 committed by Jon Mason
parent 87d11e645e
commit d0450244a4
1 changed files with 12 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
Documentation/switchtec.txt
View File

@ -78,3 +78,15 @@ The following IOCTLs are also supported by the device:
between PCI Function Framework number (used by the event system) between PCI Function Framework number (used by the event system)
and Switchtec Logic Port ID and Partition number (which is more and Switchtec Logic Port ID and Partition number (which is more
user friendly). user friendly).
Non-Transparent Bridge (NTB) Driver
===================================
An NTB driver is provided for the switchtec hardware in switchtec_ntb.
Currently, it only supports switches configured with exactly 2
partitions. It also requires the following configuration settings:
* Both partitions must be able to access each other's GAS spaces.
Thus, the bits in the GAS Access Vector under Management Settings
must be set to support this.