Author: kib
Date: Fri Apr 19 12:50:25 2019
New Revision: 346379
URL: https://svnweb.freebsd.org/changeset/base/346379
Log:
MFC r345965:
Add DEV_RESET /dev/devctl2 ioctl.
Modified:
stable/12/sys/kern/subr_bus.c
stable/12/sys/sys/bus.h
Directory Properties:
stable/12/ (props changed)
Modified: stable/12/sys/kern/subr_bus.c
==============================================================================
--- stable/12/sys/kern/subr_bus.c Fri Apr 19 12:48:17 2019
(r346378)
+++ stable/12/sys/kern/subr_bus.c Fri Apr 19 12:50:25 2019
(r346379)
@@ -5636,6 +5636,7 @@ devctl2_ioctl(struct cdev *cdev, u_long cmd, caddr_t d
case DEV_CLEAR_DRIVER:
case DEV_RESCAN:
case DEV_DELETE:
+ case DEV_RESET:
error = priv_check(td, PRIV_DRIVER);
if (error == 0)
error = find_device(req, &dev);
@@ -5860,6 +5861,14 @@ devctl2_ioctl(struct cdev *cdev, u_long cmd, caddr_t d
device_do_deferred_actions();
device_frozen = false;
}
+ break;
+ case DEV_RESET:
+ if ((req->dr_flags & ~(DEVF_RESET_DETACH)) != 0) {
+ error = EINVAL;
+ break;
+ }
+ error = BUS_RESET_CHILD(device_get_parent(dev), dev,
+ req->dr_flags);
break;
}
mtx_unlock(&Giant);
Modified: stable/12/sys/sys/bus.h
==============================================================================
--- stable/12/sys/sys/bus.h Fri Apr 19 12:48:17 2019 (r346378)
+++ stable/12/sys/sys/bus.h Fri Apr 19 12:50:25 2019 (r346379)
@@ -130,6 +130,7 @@ struct devreq {
#define DEV_DELETE _IOW('D', 10, struct devreq)
#define DEV_FREEZE _IOW('D', 11, struct devreq)
#define DEV_THAW _IOW('D', 12, struct devreq)
+#define DEV_RESET _IOW('D', 13, struct devreq)
/* Flags for DEV_DETACH and DEV_DISABLE. */
#define DEVF_FORCE_DETACH 0x0000001
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