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usb: core: Track SuperSpeed Plus GenXxY

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[ Upstream commit 0299809be415567366b66f248eed93848b8dc9f3 ]

Introduce ssp_rate field to usb_device structure to capture the
connected SuperSpeed Plus signaling rate generation and lane count with
the corresponding usb_ssp_rate enum.

Signed-off-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/b7805d121e5ae4ad5ae144bd860b6ac04ee47436.1615432770.git.Thinh.Nguyen@synopsys.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: f74a7afc224a ("usb: hub: Guard against accesses to uninitialized BOS descriptors")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Thinh Nguyen
2021-03-10 19:42:44 -08:00
committed by Greg Kroah-Hartman
parent d6316f5929
commit 95b9f1e392
3 changed files with 85 additions and 1 deletions
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include/linux/usb.h
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@@ -565,6 +565,7 @@ struct usb3_lpm_parameters {
* @speed: device speed: high/full/low (or error)
* @rx_lanes: number of rx lanes in use, USB 3.2 adds dual-lane support
* @tx_lanes: number of tx lanes in use, USB 3.2 adds dual-lane support
* @ssp_rate: SuperSpeed Plus phy signaling rate and lane count
* @tt: Transaction Translator info; used with low/full speed dev, highspeed hub
* @ttport: device port on that tt hub
* @toggle: one bit for each endpoint, with ([0] = IN, [1] = OUT) endpoints
@@ -642,6 +643,7 @@ struct usb_device {
enum usb_device_speed speed;
unsigned int rx_lanes;
unsigned int tx_lanes;
enum usb_ssp_rate ssp_rate;
struct usb_tt *tt;
int ttport;