aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/misc/mic/scif/scif_peer_bus.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/misc/mic/scif/scif_peer_bus.h')
-rw-r--r--drivers/misc/mic/scif/scif_peer_bus.h42
1 files changed, 4 insertions, 38 deletions
diff --git a/drivers/misc/mic/scif/scif_peer_bus.h b/drivers/misc/mic/scif/scif_peer_bus.h
index 33f0dbb30152..a3b8dd2edaa5 100644
--- a/drivers/misc/mic/scif/scif_peer_bus.h
+++ b/drivers/misc/mic/scif/scif_peer_bus.h
@@ -19,47 +19,13 @@
19 19
20#include <linux/device.h> 20#include <linux/device.h>
21#include <linux/mic_common.h> 21#include <linux/mic_common.h>
22 22#include <linux/scif.h>
23/*
24 * Peer devices show up as PCIe devices for the mgmt node but not the cards.
25 * The mgmt node discovers all the cards on the PCIe bus and informs the other
26 * cards about their peers. Upon notification of a peer a node adds a peer
27 * device to the peer bus to maintain symmetry in the way devices are
28 * discovered across all nodes in the SCIF network.
29 */
30/**
31 * scif_peer_dev - representation of a peer SCIF device
32 * @dev: underlying device
33 * @dnode - The destination node which this device will communicate with.
34 */
35struct scif_peer_dev {
36 struct device dev;
37 u8 dnode;
38};
39
40/**
41 * scif_peer_driver - operations for a scif_peer I/O driver
42 * @driver: underlying device driver (populate name and owner).
43 * @id_table: the ids serviced by this driver.
44 * @probe: the function to call when a device is found. Returns 0 or -errno.
45 * @remove: the function to call when a device is removed.
46 */
47struct scif_peer_driver {
48 struct device_driver driver;
49 const struct scif_peer_dev_id *id_table;
50
51 int (*probe)(struct scif_peer_dev *dev);
52 void (*remove)(struct scif_peer_dev *dev);
53};
54 23
55struct scif_dev; 24struct scif_dev;
56 25
57int scif_peer_register_driver(struct scif_peer_driver *driver); 26void scif_add_peer_device(struct work_struct *work);
58void scif_peer_unregister_driver(struct scif_peer_driver *driver); 27void scif_peer_register_device(struct scif_dev *sdev);
59 28int scif_peer_unregister_device(struct scif_dev *scifdev);
60struct scif_peer_dev *scif_peer_register_device(struct scif_dev *sdev);
61void scif_peer_unregister_device(struct scif_peer_dev *sdev);
62
63int scif_peer_bus_init(void); 29int scif_peer_bus_init(void);
64void scif_peer_bus_exit(void); 30void scif_peer_bus_exit(void);
65#endif /* _SCIF_PEER_BUS_H */ 31#endif /* _SCIF_PEER_BUS_H */