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| author | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2019-07-19 12:40:22 -0400 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2019-07-19 12:40:22 -0400 |
| commit | ca79234af3a9e6d942763a58956b337e69bf1340 (patch) | |
| tree | e3b923f28f8e1282a16a0b55d7dce7e2b0a9fa44 /drivers/usb/host/xhci.h | |
| parent | 858848641fbecd42437e36adc9291b0ce5db379e (diff) | |
| parent | 3bd837bfe431839a378e9d421af05b2e22a6d329 (diff) | |
Merge tag 'v4.19.59' into v4.19-rt
This is the 4.19.59 stable release
Diffstat (limited to 'drivers/usb/host/xhci.h')
| -rw-r--r-- | drivers/usb/host/xhci.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index dc00f59c8e69..761b341d27b0 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1010,6 +1010,15 @@ struct xhci_virt_device { u8 real_port; struct xhci_interval_bw_table *bw_table; struct xhci_tt_bw_info *tt_info; + /* + * flags for state tracking based on events and issued commands. + * Software can not rely on states from output contexts because of + * latency between events and xHC updating output context values. + * See xhci 1.1 section 4.8.3 for more details + */ + unsigned long flags; +#define VDEV_PORT_ERROR BIT(0) /* Port error, link inactive */ + /* The current max exit latency for the enabled USB3 link states. */ u16 current_mel; /* Used for the debugfs interfaces. */ |