thunderbolt: Don't create multiple DMA tunnels on firmware connection manager

Browse source

Firmware connection manager supports only one DMA tunnel per XDomain
connection. Firmware prior Intel Titan Ridge failed the operation
directly but the same does not happen anymore on Titan Ridge and
forward. For this reason add an explicit check, and fail the operation
accordingly in the driver.

Signed-off-by: Alan Borzeszkowski <alan.borzeszkowski@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>

...

This commit is contained in:

Alan Borzeszkowski 2025-10-02 15:37:22 +03:00 • committed by Mika Westerberg

parent a8937f35cf

commit cf0c38ee55

3 changed files with 31 additions and 6 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

10

drivers/thunderbolt/icm.c

View file

25

drivers/thunderbolt/xdomain.c

View file

2

include/linux/thunderbolt.h

View file