| Message ID | 1524153955-7905-5-git-send-email-mathias.nyman@linux.intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Am Donnerstag, den 19.04.2018, 19:05 +0300 schrieb Mathias Nyman: > USB 3.2 specification adds a Gen XxY notion for USB3 devices where > X is the signaling rate on the wire. Gen 1xY is 5Gbps Superspeed > and Gen 2xY is 10Gbps SuperSpeedPlus. Y is the lane count. > > For normal, non inter-chip (SSIC) devies the rx and tx lane count is > symmetric, and the maximum lane count for USB 3.2 devices is 2 (dual-lane). > > SSIC devices may have asymmetric lane counts, with up to four > lanes per direction. The USB 3.2 specification doesn't point out > how to use the Gen XxY notion for these devices, so we limit the Gen Xx2 > notion to symmertic Dual lane devies. > For other devices just show Gen1 or Gen2 If we detect an asymmetry, we should say so. Otherwise all looks good. Regards Oliver -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 97ee2f9..8d33d0c 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -4598,9 +4598,12 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1, if (udev->speed >= USB_SPEED_SUPER) { devnum = udev->devnum; dev_info(&udev->dev, - "%s SuperSpeed%s USB device number %d using %s\n", + "%s SuperSpeed%s%s USB device number %d using %s\n", (udev->config) ? "reset" : "new", - (udev->speed == USB_SPEED_SUPER_PLUS) ? "Plus" : "", + (udev->speed == USB_SPEED_SUPER_PLUS) ? + "Plus Gen 2" : " Gen 1", + (udev->rx_lanes == 2 && udev->tx_lanes == 2) ? + "x2" : "", devnum, driver_name); }
USB 3.2 specification adds a Gen XxY notion for USB3 devices where X is the signaling rate on the wire. Gen 1xY is 5Gbps Superspeed and Gen 2xY is 10Gbps SuperSpeedPlus. Y is the lane count. For normal, non inter-chip (SSIC) devies the rx and tx lane count is symmetric, and the maximum lane count for USB 3.2 devices is 2 (dual-lane). SSIC devices may have asymmetric lane counts, with up to four lanes per direction. The USB 3.2 specification doesn't point out how to use the Gen XxY notion for these devices, so we limit the Gen Xx2 notion to symmertic Dual lane devies. For other devices just show Gen1 or Gen2 Gen 1 5Gbps Gen 2 10Gbps Gen 1x2 10Gbps Dual-lane (USB 3.2) Gen 2x2 20Gbps Dual-lane (USB 3.2) Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> --- drivers/usb/core/hub.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)