diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2025-10-31 14:29:01 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2025-11-03 19:27:41 -0800 |
| commit | a4438f06b1db15ce3d831ce82b8767665638aa2a (patch) | |
| tree | 7707930e5b32ac2299e9dad0a9f6f640a0a92a48 /Documentation | |
| parent | 9ddaf9c3ed007cd03c1335fb40920ad76f72a3d5 (diff) | |
PCI/TSM: Report active IDE streams
Given that the platform TSM owns IDE Stream ID allocation, report the
active streams via the TSM class device. Establish a symlink from the
class device to the PCI endpoint device consuming the stream, named by
the Stream ID.
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Reviewed-by: Alexey Kardashevskiy <aik@amd.com>
Link: https://patch.msgid.link/20251031212902.2256310-10-dan.j.williams@intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-tsm | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-tsm b/Documentation/ABI/testing/sysfs-class-tsm index 2949468deaf7..6fc1a5ac6da1 100644 --- a/Documentation/ABI/testing/sysfs-class-tsm +++ b/Documentation/ABI/testing/sysfs-class-tsm @@ -7,3 +7,13 @@ Description: signals when the PCI layer is able to support establishment of link encryption and other device-security features coordinated through a platform tsm. + +What: /sys/class/tsm/tsmN/streamH.R.E +Contact: linux-pci@vger.kernel.org +Description: + (RO) When a host bridge has established a secure connection via + the platform TSM, symlink appears. The primary function of this + is have a system global review of TSM resource consumption + across host bridges. The link points to the endpoint PCI device + and matches the same link published by the host bridge. See + Documentation/ABI/testing/sysfs-devices-pci-host-bridge. |