usb: Add SSP and SSPx2 speed and move USB_*_MAX into enum

[aokblast]

Summary

Add USB_SPEED_SUPER_PLUS and USB_SPEED_SUPER_PLUS_X2 to prepare support
for USB 3.1 and 3.2 speed display

Also, move definitions of USB_*_MAX into enum instead of macros.

[bz]

Fantasic! You are solving one of my local TODOs :)

Can you make all these USB changes belonging together a stack in Phabricator?
It's a bit hard to grasp which all are there or belong together.
I'd be happy to at least scroll through them even if I cannot review them all in detail most likely.

% git show 9dbb804f59533d7d539200367394e4013714b02c
commit 9dbb804f59533d7d539200367394e4013714b02c
Author:     Bjoern A. Zeeb <[e-mail]>
AuthorDate: Mon Feb 9 01:11:41 2026 +0000
Commit:     Bjoern A. Zeeb <[e-mail]>
CommitDate: Sun May 24 15:53:58 2026 +0000

    TODO usb: add USB_SPEED_SUPER_PLUS to enum usb_dev_speed
    
    While nothing in our native USB stack uses the USB 3.1 "SUPERSPEED+"
    setting yet, a LinuxKPI based wireless driver does check for it.
    
    TODO: The arrays in usbd_get_std_packet_size() likely need to be updated.
    
    Sponsored by:   The FreeBSD Foundation
    MFC after:      3 days

diff --git sys/dev/usb/usb.h sys/dev/usb/usb.h
index 3e972f876c6a..f07eb9adfe40 100644
--- sys/dev/usb/usb.h
+++ sys/dev/usb/usb.h
@@ -755,8 +755,9 @@ enum usb_dev_speed {
        USB_SPEED_FULL,
        USB_SPEED_HIGH,
        USB_SPEED_SUPER,
+       USB_SPEED_SUPER_PLUS,
 };
-#define        USB_SPEED_MAX   (USB_SPEED_SUPER+1)
+#define        USB_SPEED_MAX   (USB_SPEED_SUPER_PLUS+1)
 
 /*
  * The "USB_REV" macros defines all the supported USB revisions.

[aokblast]

In D57194#1311193, @bz wrote:

Fantasic! You are solving one of my local TODOs :)

Can you make all these USB changes belonging together a stack in Phabricator?
It's a bit hard to grasp which all are there or belong together.
I'd be happy to at least scroll through them even if I cannot review them all in detail most likely.

% git show 9dbb804f59533d7d539200367394e4013714b02c
commit 9dbb804f59533d7d539200367394e4013714b02c
Author:     Bjoern A. Zeeb <[e-mail]>
AuthorDate: Mon Feb 9 01:11:41 2026 +0000
Commit:     Bjoern A. Zeeb <[e-mail]>
CommitDate: Sun May 24 15:53:58 2026 +0000

    TODO usb: add USB_SPEED_SUPER_PLUS to enum usb_dev_speed
    
    While nothing in our native USB stack uses the USB 3.1 "SUPERSPEED+"
    setting yet, a LinuxKPI based wireless driver does check for it.
    
    TODO: The arrays in usbd_get_std_packet_size() likely need to be updated.
    
    Sponsored by:   The FreeBSD Foundation
    MFC after:      3 days

diff --git sys/dev/usb/usb.h sys/dev/usb/usb.h
index 3e972f876c6a..f07eb9adfe40 100644
--- sys/dev/usb/usb.h
+++ sys/dev/usb/usb.h
@@ -755,8 +755,9 @@ enum usb_dev_speed {
        USB_SPEED_FULL,
        USB_SPEED_HIGH,
        USB_SPEED_SUPER,
+       USB_SPEED_SUPER_PLUS,
 };
-#define        USB_SPEED_MAX   (USB_SPEED_SUPER+1)
+#define        USB_SPEED_MAX   (USB_SPEED_SUPER_PLUS+1)
 
 /*
  * The "USB_REV" macros defines all the supported USB revisions.

Hi bz@, Thanks for your reply. I might not know what is the correct way to do so. But I think in the stack tab, all of my patches can be seen in here.