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 /include | |
| 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 'include')
| -rw-r--r-- | include/linux/pci-ide.h | 2 | ||||
| -rw-r--r-- | include/linux/tsm.h | 3 |
2 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/pci-ide.h b/include/linux/pci-ide.h index 85645b0a8620..d0f10f3c89fc 100644 --- a/include/linux/pci-ide.h +++ b/include/linux/pci-ide.h @@ -50,6 +50,7 @@ struct pci_ide_partner { * @host_bridge_stream: allocated from host bridge @ide_stream_ida pool * @stream_id: unique Stream ID (within Partner Port pairing) * @name: name of the established Selective IDE Stream in sysfs + * @tsm_dev: For TSM established IDE, the TSM device context * * Negative @stream_id values indicate "uninitialized" on the * expectation that with TSM established IDE the TSM owns the stream_id @@ -61,6 +62,7 @@ struct pci_ide { u8 host_bridge_stream; int stream_id; const char *name; + struct tsm_dev *tsm_dev; }; void pci_ide_set_nr_streams(struct pci_host_bridge *hb, u16 nr); diff --git a/include/linux/tsm.h b/include/linux/tsm.h index 22e05b2aac69..a3b7ab668eff 100644 --- a/include/linux/tsm.h +++ b/include/linux/tsm.h @@ -123,4 +123,7 @@ int tsm_report_unregister(const struct tsm_report_ops *ops); struct tsm_dev *tsm_register(struct device *parent, struct pci_tsm_ops *ops); void tsm_unregister(struct tsm_dev *tsm_dev); struct tsm_dev *find_tsm_dev(int id); +struct pci_ide; +int tsm_ide_stream_register(struct pci_ide *ide); +void tsm_ide_stream_unregister(struct pci_ide *ide); #endif /* __TSM_H */ |