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usb-redir: Allow to attach USB 2.0 devices to 1.1 host controller

PATCH Superseded Jan Kiszka 5 participants 17 messages Sep 15, 2012 – Oct 9, 2012

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Jan Kiszka

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#0 lore raw

PATCH 1/1 usb-redir: Allow to attach USB 2.0 devices to 1.1 host controller

From: Jan Kiszka <[email protected]>

This follows the logic of host-linux: If a 2.0 device has no ISO endpoint and no interrupt endpoint with a packet size > 64, we can attach it also to an 1.1 host controller. In case the redir server does not report endpoint sizes, play safe and remove the 1.1 compatibility as well.

Signed-off-by Jan Kiszka <[email protected]>
---
 hw/usb/redirect.c |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)
hw/usb/redirect.c +10 -0
index 5301a69..bc36e53 100644
@@ -1098,6 +1098,9 @@ static void usbredir_device_connect(void *priv,
     }
 
     dev->dev.speedmask = (1 << dev->dev.speed);
+    if (dev->dev.speed == USB_SPEED_HIGH) {
+        dev->dev.speedmask |= USB_SPEED_MASK_FULL;
+    }
     dev->device_info = *device_connect;
 
     if (usbredir_check_filter(dev)) {

@@ -1172,7 +1175,14 @@ static void usbredir_ep_info(void *priv,
         case usb_redir_type_invalid:
             break;
         case usb_redir_type_iso:
+            dev->dev.speedmask &= ~USB_SPEED_MASK_FULL;
+            /* Fall through */
         case usb_redir_type_interrupt:
+            if (!usbredirparser_peer_has_cap(dev->parser,
+                                     usb_redir_cap_ep_info_max_packet_size) ||
+                ep_info->max_packet_size[i] > 64) {
+                dev->dev.speedmask &= ~USB_SPEED_MASK_FULL;
+            }
             if (dev->endpoint[i].interval == 0) {
                 ERROR("Received 0 interval for isoc or irq endpoint\n");
                 usbredir_device_disconnect(dev);
Signature · 1 line
1.7.3.4
#1 lore raw

Hi,

Quoted 9 lines · Jan Kiszka

From: Jan Kiszka <[email protected]>

This follows the logic of host-linux: If a 2.0 device has no ISO endpoint and no interrupt endpoint with a packet size > 64, we can attach it also to an 1.1 host controller. In case the redir server does not report endpoint sizes, play safe and remove the 1.1 compatibility as well.

Signed-off-by Jan Kiszka <[email protected]>

Interesting thanks for the patch. I like the approach you took (simple code), but unfortunately it won't work, if you look at usbredir_device_connect(), where you do the dev->dev.speedmask |= USB_SPEED_MASK_FULL, it also actually attaches the device to the controller, from which point on the guest will see the device.

What happens on the wire is that the usbredir-host sends (in order):
-ep_info + interface_info
-device_connect message

So your clearing of the speed-mask will never trigger, unless ep-info gets repeated later (which it does under certain circumstances).

I suggest instead changing the code to set a "fullspeed_compatible" flag in struct USBRedirDevice from usbredir_device_disconnect(), clear that flag from usbredir_ep_info and use it to add to the mask in usbredir_device_connect().

###

Another issue is what happens if a device "grows" incompatible endpoints after being attached, ie a webcam could have no isoc endpoints in alt setting 0, and then grow an isoc endpoint on a set_interface. So we would need a check for a device becoming not fullspeed compat while being attached at fullspeed in usbredir_ep_info(), and then call usbredir_reject_device() when this happens.

Although not pretty I'm ok with this, since I actually want to add similar code to allow usb-3 (superspeed) devices like a usb-3 usb-stick to work with ehci or uhci controllers :)

Regards,

Hans

Quoted 34 lines
---
  hw/usb/redirect.c |   10 ++++++++++
  1 files changed, 10 insertions(+), 0 deletions(-)
hw/usb/redirect.c +10 -0
index 5301a69..bc36e53 100644
@@ -1098,6 +1098,9 @@ static void usbredir_device_connect(void *priv,
      }
 
      dev->dev.speedmask = (1 << dev->dev.speed);
+    if (dev->dev.speed == USB_SPEED_HIGH) {
+        dev->dev.speedmask |= USB_SPEED_MASK_FULL;
+    }
      dev->device_info = *device_connect;
 
      if (usbredir_check_filter(dev)) {

@@ -1172,7 +1175,14 @@ static void usbredir_ep_info(void *priv,
          case usb_redir_type_invalid:
              break;
          case usb_redir_type_iso:
+            dev->dev.speedmask &= ~USB_SPEED_MASK_FULL;
+            /* Fall through */
          case usb_redir_type_interrupt:
+            if (!usbredirparser_peer_has_cap(dev->parser,
+                                     usb_redir_cap_ep_info_max_packet_size) ||
+                ep_info->max_packet_size[i] > 64) {
+                dev->dev.speedmask &= ~USB_SPEED_MASK_FULL;
+            }
              if (dev->endpoint[i].interval == 0) {
                  ERROR("Received 0 interval for isoc or irq endpoint\n");
                  usbredir_device_disconnect(dev);
author
#2 lore raw
Quoted 24 lines · Hans de Goede

Hi,

Quoted 9 lines · Jan Kiszka

From: Jan Kiszka <[email protected]>

This follows the logic of host-linux: If a 2.0 device has no ISO endpoint and no interrupt endpoint with a packet size > 64, we can attach it also to an 1.1 host controller. In case the redir server does not report endpoint sizes, play safe and remove the 1.1 compatibility as well.

Signed-off-by Jan Kiszka <[email protected]>

Interesting thanks for the patch. I like the approach you took (simple code),
but unfortunately it won't work, if you look at usbredir_device_connect(), where you do the dev->dev.speedmask |= USB_SPEED_MASK_FULL, it also actually attaches the device to the controller, from which point on the guest will see the device.

What happens on the wire is that the usbredir-host sends (in order):

(quoted diff) +0 -2
-ep_info + interface_info
-device_connect message
Quoted 2 lines

So your clearing of the speed-mask will never trigger, unless ep-info gets repeated later (which it does under certain circumstances).

Hmm, what a pity...

Quoted 5 lines

I suggest instead changing the code to set a "fullspeed_compatible" flag in struct USBRedirDevice from usbredir_device_disconnect(), clear that flag from usbredir_ep_info and use it to add to the mask in usbredir_device_connect().

OK.

Quoted 9 lines

###

Another issue is what happens if a device "grows" incompatible endpoints after being attached, ie a webcam could have no isoc endpoints in alt setting 0, and then grow an isoc endpoint on a set_interface. So we would need a check for a device becoming not fullspeed compat while being attached at fullspeed in usbredir_ep_info(), and then call usbredir_reject_device() when this happens.

...and this patch started so simple. OK.

Quoted 4 lines

Although not pretty I'm ok with this, since I actually want to add similar code to allow usb-3 (superspeed) devices like a usb-3 usb-stick to work with ehci or uhci controllers :)

Great, that would have been my next question, but I don't have hardware for that around yet.

BTW, I'm facing several incompatibilities with passed-through CDC/ACM devices (e.g. a Galaxy S2), independent of my patch. Both host-linux and redir doesn't allow to use them properly but show different symptoms. Need to analyze and report once time permits.

Jan

#3 lore raw

Hi,

Quoted 1 line · Jan Kiszka

On 2012-09-17 11:08, Hans de Goede wrote:

<snip>

Quoted 6 lines
Quoted 3 lines

Although not pretty I'm ok with this, since I actually want to add similar code to allow usb-3 (superspeed) devices like a usb-3 usb-stick to work with ehci or uhci controllers :)

Great, that would have been my next question, but I don't have hardware for that around yet.

I do have hardware for that around, so once you've respun your patch to address the issues discussed, then that will give me a nice basis to add usb-3 usb-stick to ehci-controller redirection :)

Quoted 4 lines

BTW, I'm facing several incompatibilities with passed-through CDC/ACM devices (e.g. a Galaxy S2), independent of my patch. Both host-linux and redir doesn't allow to use them properly but show different symptoms. Need to analyze and report once time permits.

Hmm, there is (was) one know issues with these devices, which has been fixed in usbredir, so first of all make sure that the usbredir on your spice-client / usbredirserver, has this patch:
http://cgit.freedesktop.org/spice/usbredir/commit/?id=7783d3db61083bbf7f61b1ea8608c666b4c6a1dd

If that does not work, add the debug parameter to the usb-redir device, set it to 4, collect logs of trying to redirect the device and send me the logs please, ie:
-device usb-redir,chardev=usbredirchardev1,id=usbredirdev1,debug=4

Also be aware that usb-redir relies on chardev flowcontrol working, which it does not upstream! See for example here for the chardev flow control patch set which RHEL / Fedora carry:
http://cgit.freedesktop.org/~jwrdegoede/qemu/log/?h=qemu-kvm-1.2-usbredir&ofs=50

And then the first 13 patches after: "Merge tag 'v1.2.0'"

Oh, and also, if you're running qemu git master, make sure you've:
http://cgit.freedesktop.org/~jwrdegoede/qemu/commit/?id=81e34f5973d8d6a1ef998a50c4a4bf66abb3b56b

Regards,

Hans

#4 lore raw
Quoted 23 lines · Hans de Goede

Hi,

Quoted 1 line · Jan Kiszka

On 2012-09-17 11:08, Hans de Goede wrote:

<snip>

Quoted 6 lines
Quoted 3 lines

Although not pretty I'm ok with this, since I actually want to add similar code to allow usb-3 (superspeed) devices like a usb-3 usb-stick to work with ehci or uhci controllers :)

Great, that would have been my next question, but I don't have hardware for that around yet.

I do have hardware for that around, so once you've respun your patch to address the issues discussed, then that will give me a nice basis to add usb-3 usb-stick to ehci-controller redirection :)

Quoted 4 lines

BTW, I'm facing several incompatibilities with passed-through CDC/ACM devices (e.g. a Galaxy S2), independent of my patch. Both host-linux and redir doesn't allow to use them properly but show different symptoms. Need to analyze and report once time permits.

Quoted 7 lines

Hmm, there is (was) one know issues with these devices, which has been fixed
in usbredir, so first of all make sure that the usbredir on your spice-client
/ usbredirserver, has this patch:
http://cgit.freedesktop.org/spice/usbredir/commit/?id=7783d3db61083bbf7f61b1ea8608c666b4c6a1dd

Included (I'm using 0.5 or even git head).

Quoted 13 lines

If that does not work, add the debug parameter to the usb-redir device, set it
to 4, collect logs of trying to redirect the device and send me the logs please, ie:
-device usb-redir,chardev=usbredirchardev1,id=usbredirdev1,debug=4

Also be aware that usb-redir relies on chardev flowcontrol working, which it does not upstream! See for example here for the chardev flow control patch set which RHEL / Fedora carry:
http://cgit.freedesktop.org/~jwrdegoede/qemu/log/?h=qemu-kvm-1.2-usbredir&ofs=50

Quoted 5 lines

And then the first 13 patches after: "Merge tag 'v1.2.0'"

Oh, and also, if you're running qemu git master, make sure you've:
http://cgit.freedesktop.org/~jwrdegoede/qemu/commit/?id=81e34f5973d8d6a1ef998a50c4a4bf66abb3b56b

I used qemu-kvm-1.2-usbredir^ (the last commit is apparently broken - copy&paste bug?). I'm getting this right after typing cat /dev/ACM0 in the guest. It's an endless stream, and so is the output in the guest although there should be nothing to dump (that's the proper behaviour on the host).

qemu-system-x86_64: usb-redir: ctrl-out type 0x21 req 0x22 val 0x3 index 1 len 0 id 933360000

qemu-system-x86_64: usb-redir: ctrl-in status 0 len 0 id 933360000

qemu-system-x86_64: usb-redir: interrupt recv started ep 83

qemu-system-x86_64: usb-redir: bulk-out ep 85 len 512 id 933359872

qemu-system-x86_64: usb-redir: interrupt recv status 0 ep 83 id 0

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 85 len 9 id 933359872

qemu-system-x86_64: usb-redir: bulk-out ep 85 len 512 id 933360192

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 85 len 0 id 933360192

qemu-system-x86_64: usb-redir: bulk-out ep 85 len 512 id 933360320

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362176

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362240

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 1 id 933362304

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 1 id 933362368

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 1 id 933362432

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 1 id 933362496

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 1 id 933362560

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362624

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362688

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362176

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362240

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 1 id 933362304

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 1 id 933362368

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 1 id 933362432

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 1 id 933362496

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 1 id 933362560

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362624

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362688

qemu-system-x86_64: usb-redir: interrupt-in status 0 ep 83 len 10 id 0

qemu-system-x86_64: usb-redir: interrupt-token-in ep 83 status 0 len 10

qemu-system-x86_64: usb-redir: interrupt-in status 0 ep 83 len 10 id 1

qemu-system-x86_64: usb-redir: interrupt-token-in ep 83 status 0 len 10

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 85 len 13 id 933360320

qemu-system-x86_64: usb-redir: bulk-out ep 85 len 512 id 933360448

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 85 len 0 id 933360448

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362752

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362624

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362560

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362496

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 1 id 933362432

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 1 id 933362368

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 1 id 933362304

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 1 id 933362240

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 1 id 933362176

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362816

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362880

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362944

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933363008

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362752

qemu-system-x86_64: usb-redir: bulk-out ep 85 len 512 id 933360576

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362624

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362560

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362496

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 1 id 933362432

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 1 id 933362368

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 1 id 933362304

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 1 id 933362240

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 1 id 933362176

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362816

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362880

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362944

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933363008

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 85 len 21 id 933360576

qemu-system-x86_64: usb-redir: bulk-out ep 85 len 512 id 933360704

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 85 len 0 id 933360704

qemu-system-x86_64: usb-redir: bulk-out ep 85 len 512 id 933360832

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933363072

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933363008

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362944

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362880

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362816

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362176

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362240

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362304

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 1 id 933362368

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 1 id 933362432

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 1 id 933362496

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 1 id 933362560

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 1 id 933362624

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362752

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933363136

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933363200

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933363072

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933363008

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362944

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362880

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362816

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362176

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362240

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362304

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 1 id 933362368

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 1 id 933362432

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 1 id 933362496

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 1 id 933362560

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 1 id 933362624

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362752

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933363136

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933363200

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 85 len 27 id 933360832

qemu-system-x86_64: usb-redir: bulk-out ep 85 len 512 id 933360960

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 85 len 0 id 933360960

qemu-system-x86_64: usb-redir: bulk-out ep 85 len 512 id 933361088

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933363264

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933363200

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362624

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362560

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933360896

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933360704

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362496

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362432

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362368

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362304

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362240

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362176

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362816

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362880

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362944

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933363008

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933363264

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933363200

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362624

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362560

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933360896

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933360704

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362496

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362432

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362368

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362304

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362240

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362176

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362816

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362880

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362944

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933363008

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 85 len 32 id 933361088

qemu-system-x86_64: usb-redir: bulk-out ep 85 len 512 id 933361216

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 85 len 0 id 933361216

qemu-system-x86_64: usb-redir: bulk-out ep 85 len 512 id 933361344

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933363072

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933363008

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362816

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362176

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362240

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 1 id 933362304

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 1 id 933361152

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 1 id 933360960

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 1 id 933362368

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 1 id 933362432

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362496

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933360704

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933360896

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362560

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qemu-system-x86_64: usb-redir: bulk-in status 0 ep 85 len 27 id 933361344

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qemu-system-x86_64: usb-redir: bulk-out ep 85 len 512 id 933361600

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qemu-system-x86_64: usb-redir: bulk-in status 0 ep 85 len 26 id 933361600

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qemu-system-x86_64: usb-redir: bulk-in status 0 ep 85 len 0 id 933361728

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qemu-system-x86_64: usb-redir: bulk-in status 0 ep 85 len 27 id 933362112

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qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933363264

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qemu-system-x86_64: usb-redir: bulk-in status 0 ep 85 len 32 id 933359872

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qemu-system-x86_64: usb-redir: bulk-in status 0 ep 85 len 32 id 933360320

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qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933360640

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 85 len 32 id 933360576

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qemu-system-x86_64: usb-redir: bulk-in status 0 ep 85 len 32 id 933360832

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qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362944

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362752

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362368

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933360960

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933361152

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933362304

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933361472

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933361664

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933360000

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933360448

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933363136

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 04 len 2 id 933360640

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 85 len 32 id 933361088

qemu-system-x86_64: usb-redir: bulk-out ep 85 len 512 id 933362560

qemu-system-x86_64: usb-redir: bulk-in status 0 ep 85 len 0 id 933362560

qemu-system-x86_64: usb-redir: bulk-out ep 85 len 512 id 933361344

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933360192

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933360640

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362624

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362880

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933360000

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933361664

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933361472

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362304

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933361152

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933360960

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362368

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362752

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362944

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362432

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933362496

qemu-system-x86_64: usb-redir: bulk-out ep 04 len 2 id 933363200

Jan

Signature · 2 lines
Siemens AG, Corporate Technology, CT RTC ITP SDP-DE
Corporate Competence Center Embedded Linux
#5 lore raw

Hi,

Quoted 12 lines · Jan Kiszka
Quoted 12 lines

If that does not work, add the debug parameter to the usb-redir device, set it
to 4, collect logs of trying to redirect the device and send me the logs please, ie:
-device usb-redir,chardev=usbredirchardev1,id=usbredirdev1,debug=4

Also be aware that usb-redir relies on chardev flowcontrol working, which it does not upstream! See for example here for the chardev flow control patch set which RHEL / Fedora carry:
http://cgit.freedesktop.org/~jwrdegoede/qemu/log/?h=qemu-kvm-1.2-usbredir&ofs=50

Quoted 8 lines
Quoted 5 lines

And then the first 13 patches after: "Merge tag 'v1.2.0'"

Oh, and also, if you're running qemu git master, make sure you've:
http://cgit.freedesktop.org/~jwrdegoede/qemu/commit/?id=81e34f5973d8d6a1ef998a50c4a4bf66abb3b56b

I used qemu-kvm-1.2-usbredir^ (the last commit is apparently broken - copy&paste bug?).

Yeah, that has been fixed now.

Quoted 4 lines

I'm getting this right after typing cat /dev/ACM0 in
the guest. It's an endless stream, and so is the output in the guest although there should be nothing to dump (that's the proper behaviour on the host).

Hmm, can you try commenting out line 1608 of hw/usb/redirect.c:

            usb_ep->pipeline = true;

And see if that helps. If it does not help, please bump the debug level to 5 (this will also make it log packet contents), and then generate another log, and then it is time to dive into the ACM protocol to see what is happening...

Regards,

Hans

#9 lore raw
In reply to Hans de Goede
Quoted 33 lines · Hans de Goede

Hi,

Quoted 1 line · Jan Kiszka

On 2012-09-17 11:08, Hans de Goede wrote:

<snip>

Quoted 6 lines
Quoted 3 lines

Although not pretty I'm ok with this, since I actually want to add similar code to allow usb-3 (superspeed) devices like a usb-3 usb-stick to work with ehci or uhci controllers :)

Great, that would have been my next question, but I don't have hardware for that around yet.

I do have hardware for that around, so once you've respun your patch to address the issues discussed, then that will give me a nice basis to add usb-3 usb-stick to ehci-controller redirection :)

Quoted 4 lines

BTW, I'm facing several incompatibilities with passed-through CDC/ACM devices (e.g. a Galaxy S2), independent of my patch. Both host-linux and redir doesn't allow to use them properly but show different symptoms. Need to analyze and report once time permits.

Hmm, there is (was) one know issues with these devices, which has been fixed in usbredir, so first of all make sure that the usbredir on your spice-client / usbredirserver, has this patch:
http://cgit.freedesktop.org/spice/usbredir/commit/?id=7783d3db61083bbf7f61b1ea8608c666b4c6a1dd

If that does not work, add the debug parameter to the usb-redir device, set it to 4, collect logs of trying to redirect the device and send me the logs please, ie:
-device usb-redir,chardev=usbredirchardev1,id=usbredirdev1,debug=4

Quoted 4 lines

Also be aware that usb-redir relies on chardev flowcontrol working, which it does not upstream! See for example here for the chardev flow control patch set which RHEL / Fedora carry:
http://cgit.freedesktop.org/~jwrdegoede/qemu/log/?h=qemu-kvm-1.2-usbredir&ofs=50

Those patches are garbage.

Are you saying that usb-redir doesn't work in qemu.git? So why are we even carrying it?

Regards,

Anthony Liguori

Quoted 9 lines

And then the first 13 patches after: "Merge tag 'v1.2.0'"

Oh, and also, if you're running qemu git master, make sure you've:
http://cgit.freedesktop.org/~jwrdegoede/qemu/commit/?id=81e34f5973d8d6a1ef998a50c4a4bf66abb3b56b

Regards,

Hans

#10 lore raw

Hi,

Quoted 35 lines · Anthony Liguori
Quoted 33 lines · Hans de Goede

Hi,

Quoted 1 line · Jan Kiszka

On 2012-09-17 11:08, Hans de Goede wrote:

<snip>

Quoted 6 lines
Quoted 3 lines

Although not pretty I'm ok with this, since I actually want to add similar code to allow usb-3 (superspeed) devices like a usb-3 usb-stick to work with ehci or uhci controllers :)

Great, that would have been my next question, but I don't have hardware for that around yet.

I do have hardware for that around, so once you've respun your patch to address the issues discussed, then that will give me a nice basis to add usb-3 usb-stick to ehci-controller redirection :)

Quoted 4 lines

BTW, I'm facing several incompatibilities with passed-through CDC/ACM devices (e.g. a Galaxy S2), independent of my patch. Both host-linux and redir doesn't allow to use them properly but show different symptoms. Need to analyze and report once time permits.

Hmm, there is (was) one know issues with these devices, which has been fixed in usbredir, so first of all make sure that the usbredir on your spice-client / usbredirserver, has this patch:
http://cgit.freedesktop.org/spice/usbredir/commit/?id=7783d3db61083bbf7f61b1ea8608c666b4c6a1dd

If that does not work, add the debug parameter to the usb-redir device, set it to 4, collect logs of trying to redirect the device and send me the logs please, ie:
-device usb-redir,chardev=usbredirchardev1,id=usbredirdev1,debug=4

Quoted 6 lines
Quoted 4 lines

Also be aware that usb-redir relies on chardev flowcontrol working, which it does not upstream! See for example here for the chardev flow control patch set which RHEL / Fedora carry:
http://cgit.freedesktop.org/~jwrdegoede/qemu/log/?h=qemu-kvm-1.2-usbredir&ofs=50

Those patches are garbage.

<sigh, very very deep sigh>

No they are not garbage. They:

1) Fix a real issue, which is independent of spice / usb-redir but happens to be more easily triggerable with them. Note that the original set was developed to fix a bug which did not involve either!

2) Are disliked by you because they build upon the existing not pretty chardev code. We all agree that needs a rewrite. But that is not a valid reason to keep this perfectly fine patchset out of qemu master for years now!

3) You keep saying they are "racy", but you've never given a simple step by step thread 1 does foo, thread 2 does bar replay of such a theoretical race.

4) Have caused no issues in almost 2 years of deployment in the field in both RHEL and Fedora.

5) Are kept out of master by you for no valid reasons, you seem to use them as a tool to strongarm people into rewriting the qemu chardev layer. Well it seems that no one is biting because of -ENOTIME, so can we now please get these included, after almost 2 years since their first posting ?

Quoted 2 lines

Are you saying that usb-redir doesn't work in qemu.git? So why are we even carrying it?

It works just as well as virtio-console or any other chardev frontend, any chardev frontent can currently trigger asserts by writing data faster then the backend can handle. This is just more easily triggerable with USB trafic then with a serial console.

The original bug-report this patch set once was written for was about virtio-console and is dated 2010-08-05 !

So why are we even carrying virtio-console ?

Regards,

Hans

p.s.

Note that I'm *not* the original author of these patches.

#6 lore raw
In reply to Hans de Goede
Quoted 31 lines · Hans de Goede

Hi,

Quoted 12 lines · Jan Kiszka
Quoted 12 lines

If that does not work, add the debug parameter to the usb-redir device, set it
to 4, collect logs of trying to redirect the device and send me the logs please, ie:
-device usb-redir,chardev=usbredirchardev1,id=usbredirdev1,debug=4

Also be aware that usb-redir relies on chardev flowcontrol working, which it does not upstream! See for example here for the chardev flow control patch set which RHEL / Fedora carry:
http://cgit.freedesktop.org/~jwrdegoede/qemu/log/?h=qemu-kvm-1.2-usbredir&ofs=50

Quoted 8 lines
Quoted 5 lines

And then the first 13 patches after: "Merge tag 'v1.2.0'"

Oh, and also, if you're running qemu git master, make sure you've:
http://cgit.freedesktop.org/~jwrdegoede/qemu/commit/?id=81e34f5973d8d6a1ef998a50c4a4bf66abb3b56b

I used qemu-kvm-1.2-usbredir^ (the last commit is apparently broken - copy&paste bug?).

Yeah, that has been fixed now.

Quoted 4 lines

I'm getting this right after typing cat /dev/ACM0 in
the guest. It's an endless stream, and so is the output in the guest although there should be nothing to dump (that's the proper behaviour on the host).

Quoted 6 lines

Hmm, can you try commenting out line 1608 of hw/usb/redirect.c:

             usb_ep->pipeline = true;

And see if that helps. If it does not help, please bump the debug level to 5 (this will also make it log packet contents), and then generate another log, and then it is time to dive into the ACM protocol to see what is happening...

As it looks like now, I was just using the wrong test on the guest side. Retried this morning briefly with a terminal program, and it was all fine, even when forwarding from host-ehci to guest-uhci (with my broken patch), even when using current QEMU git head. Sorry for the noise

Jan

Signature · 2 lines
Siemens AG, Corporate Technology, CT RTC ITP SDP-DE
Corporate Competence Center Embedded Linux
#7 lore raw

Hi,

Quoted 35 lines · Jan Kiszka
Quoted 34 lines · Hans de Goede

Hi,

Quoted 12 lines · Jan Kiszka
Quoted 12 lines

If that does not work, add the debug parameter to the usb-redir device, set it
to 4, collect logs of trying to redirect the device and send me the logs please, ie:
-device usb-redir,chardev=usbredirchardev1,id=usbredirdev1,debug=4

Also be aware that usb-redir relies on chardev flowcontrol working, which it does not upstream! See for example here for the chardev flow control patch set which RHEL / Fedora carry:
http://cgit.freedesktop.org/~jwrdegoede/qemu/log/?h=qemu-kvm-1.2-usbredir&ofs=50

Quoted 8 lines
Quoted 5 lines

And then the first 13 patches after: "Merge tag 'v1.2.0'"

Oh, and also, if you're running qemu git master, make sure you've:
http://cgit.freedesktop.org/~jwrdegoede/qemu/commit/?id=81e34f5973d8d6a1ef998a50c4a4bf66abb3b56b

I used qemu-kvm-1.2-usbredir^ (the last commit is apparently broken - copy&paste bug?).

Yeah, that has been fixed now.

Quoted 4 lines

I'm getting this right after typing cat /dev/ACM0 in
the guest. It's an endless stream, and so is the output in the guest although there should be nothing to dump (that's the proper behaviour on the host).

Hmm, can you try commenting out line 1608 of hw/usb/redirect.c:

              usb_ep->pipeline = true;
Quoted 8 lines
Quoted 3 lines

And see if that helps. If it does not help, please bump the debug level to 5 (this will also make it log packet contents), and then generate another log, and then it is time to dive into the ACM protocol to see what is happening...

As it looks like now, I was just using the wrong test on the guest side. Retried this morning briefly with a terminal program, and it was all fine, even when forwarding from host-ehci to guest-uhci (with my broken patch), even when using current QEMU git head. Sorry for the noise

Ok, so to be clear: this is solved now, right ?

Regards,

Hans

#8 lore raw
Quoted 42 lines · Hans de Goede

Hi,

Quoted 39 lines · Jan Kiszka
Quoted 37 lines · Hans de Goede

Hi,

Quoted 12 lines · Jan Kiszka
Quoted 12 lines

If that does not work, add the debug parameter to the usb-redir device, set it
to 4, collect logs of trying to redirect the device and send me the logs please, ie:
-device usb-redir,chardev=usbredirchardev1,id=usbredirdev1,debug=4

Also be aware that usb-redir relies on chardev flowcontrol working, which it does not upstream! See for example here for the chardev flow control patch set which RHEL / Fedora carry:
http://cgit.freedesktop.org/~jwrdegoede/qemu/log/?h=qemu-kvm-1.2-usbredir&ofs=50

Quoted 8 lines
Quoted 5 lines

And then the first 13 patches after: "Merge tag 'v1.2.0'"

Oh, and also, if you're running qemu git master, make sure you've:
http://cgit.freedesktop.org/~jwrdegoede/qemu/commit/?id=81e34f5973d8d6a1ef998a50c4a4bf66abb3b56b

I used qemu-kvm-1.2-usbredir^ (the last commit is apparently broken - copy&paste bug?).

Yeah, that has been fixed now.

Quoted 4 lines

I'm getting this right after typing cat /dev/ACM0 in
the guest. It's an endless stream, and so is the output in the guest although there should be nothing to dump (that's the proper behaviour on the host).

Hmm, can you try commenting out line 1608 of hw/usb/redirect.c:

              usb_ep->pipeline = true;

And see if that helps. If it does not help, please bump the debug level to 5 (this will also make it log packet contents), and then generate another log, and then it is time to dive into the ACM protocol to see what is happening...

Quoted 6 lines
Quoted 4 lines

As it looks like now, I was just using the wrong test on the guest side. Retried this morning briefly with a terminal program, and it was all fine, even when forwarding from host-ehci to guest-uhci (with my broken patch), even when using current QEMU git head. Sorry for the noise

Ok, so to be clear: this is solved now, right ?

Let's consider it solved until I find a real bug. ;)

Will send some update for the speed matching patch on the weekend, probably.

Jan

Signature · 2 lines
Siemens AG, Corporate Technology, CT RTC ITP SDP-DE
Corporate Competence Center Embedded Linux
author
#11 lore raw

PATCH v2 1/1 usb-redir: Allow to attach USB 2.0 devices to 1.1 host controller

In reply to Hans de Goede

From: Jan Kiszka <[email protected]>

This follows the logic of host-linux: If a 2.0 device has no ISO endpoint and no interrupt endpoint with a packet size > 64, we can attach it also to an 1.1 host controller. In case the redir server does not report endpoint sizes, play safe and remove the 1.1 compatibility as well. Moreover, if we detect a conflicting change in the configuration after the device was already attached, it will be disconnected immediately.

Signed-off-by Jan Kiszka <[email protected]>

---

Changes in v2:
- fix incompatibility marking via introduction of compatible_speedmask
- disconnect device if incompatibility is detected when already attached

 hw/usb/redirect.c |   24 +++++++++++++++++++++++-
 1 files changed, 23 insertions(+), 1 deletions(-)
hw/usb/redirect.c +23 -1
index b10241a..2099ea4 100644
@@ -105,6 +105,7 @@ struct USBRedirDevice {
     struct usb_redir_interface_info_header interface_info;
     struct usbredirfilter_rule *filter_rules;
     int filter_rules_count;
+    int compatible_speedmask;
 };
 
 static void usbredir_hello(void *priv, struct usb_redir_hello_header *h);

@@ -1037,6 +1038,9 @@ static int usbredir_initfn(USBDevice *udev)
     /* We'll do the attach once we receive the speed from the usb-host */
     udev->auto_attach = 0;
 
+    /* Will be cleared during setup when we find conflicts */
+    dev->compatible_speedmask = USB_SPEED_MASK_FULL;
+
     /* Let the backend know we are ready */
     qemu_chr_fe_open(dev->cs);
     qemu_chr_add_handlers(dev->cs, usbredir_chardev_can_read,

@@ -1177,10 +1181,12 @@ static void usbredir_device_connect(void *priv,
     case usb_redir_speed_low:
         speed = "low speed";
         dev->dev.speed = USB_SPEED_LOW;
+        dev->dev.speedmask = 0;
         break;
     case usb_redir_speed_full:
         speed = "full speed";
         dev->dev.speed = USB_SPEED_FULL;
+        dev->dev.speedmask = 0;
         break;
     case usb_redir_speed_high:
         speed = "high speed";

@@ -1189,6 +1195,7 @@ static void usbredir_device_connect(void *priv,
     case usb_redir_speed_super:
         speed = "super speed";
         dev->dev.speed = USB_SPEED_SUPER;
+        dev->dev.speedmask = 0;
         break;
     default:
         speed = "unknown speed";

@@ -1210,7 +1217,7 @@ static void usbredir_device_connect(void *priv,
              device_connect->device_class);
     }
 
-    dev->dev.speedmask = (1 << dev->dev.speed);
+    dev->dev.speedmask = (1 << dev->dev.speed) | dev->compatible_speedmask;
     dev->device_info = *device_connect;
 
     if (usbredir_check_filter(dev)) {

@@ -1271,6 +1278,14 @@ static void usbredir_interface_info(void *priv,
     }
 }
 
+static void usbredir_mark_fullspeed_incompatible(USBRedirDevice *dev)
+{
+    dev->compatible_speedmask &= ~USB_SPEED_MASK_FULL;
+    if (dev->dev.attached && dev->dev.port->dev->speed == USB_SPEED_FULL) {
+        usbredir_device_disconnect(dev);
+    }
+}
+
 static void usbredir_ep_info(void *priv,
     struct usb_redir_ep_info_header *ep_info)
 {

@@ -1286,7 +1301,14 @@ static void usbredir_ep_info(void *priv,
         case usb_redir_type_invalid:
             break;
         case usb_redir_type_iso:
+            usbredir_mark_fullspeed_incompatible(dev);
+            /* Fall through */
         case usb_redir_type_interrupt:
+            if (!usbredirparser_peer_has_cap(dev->parser,
+                                     usb_redir_cap_ep_info_max_packet_size) ||
+                ep_info->max_packet_size[i] > 64) {
+                usbredir_mark_fullspeed_incompatible(dev);
+            }
             if (dev->endpoint[i].interval == 0) {
                 ERROR("Received 0 interval for isoc or irq endpoint\n");
                 usbredir_device_disconnect(dev);
Signature · 1 line
1.7.3.4
#12 lore raw
Quoted 94 lines · Jan Kiszka

From: Jan Kiszka <[email protected]>

This follows the logic of host-linux: If a 2.0 device has no ISO endpoint and no interrupt endpoint with a packet size > 64, we can attach it also to an 1.1 host controller. In case the redir server does not report endpoint sizes, play safe and remove the 1.1 compatibility as well. Moreover, if we detect a conflicting change in the configuration after the device was already attached, it will be disconnected immediately.

Signed-off-by Jan Kiszka <[email protected]>

---

Changes in v2:
- fix incompatibility marking via introduction of compatible_speedmask
- disconnect device if incompatibility is detected when already attached

 hw/usb/redirect.c |   24 +++++++++++++++++++++++-
 1 files changed, 23 insertions(+), 1 deletions(-)
hw/usb/redirect.c +17 -1
index b10241a..2099ea4 100644
@@ -105,6 +105,7 @@ struct USBRedirDevice {
     struct usb_redir_interface_info_header interface_info;
     struct usbredirfilter_rule *filter_rules;
     int filter_rules_count;
+    int compatible_speedmask;
 };
 
 static void usbredir_hello(void *priv, struct usb_redir_hello_header *h);

@@ -1037,6 +1038,9 @@ static int usbredir_initfn(USBDevice *udev)
     /* We'll do the attach once we receive the speed from the usb-host */
     udev->auto_attach = 0;
 
+    /* Will be cleared during setup when we find conflicts */
+    dev->compatible_speedmask = USB_SPEED_MASK_FULL;
+
     /* Let the backend know we are ready */
     qemu_chr_fe_open(dev->cs);
     qemu_chr_add_handlers(dev->cs, usbredir_chardev_can_read,

@@ -1177,10 +1181,12 @@ static void usbredir_device_connect(void *priv,
     case usb_redir_speed_low:
         speed = "low speed";
         dev->dev.speed = USB_SPEED_LOW;
+        dev->dev.speedmask = 0;
         break;
     case usb_redir_speed_full:
         speed = "full speed";
         dev->dev.speed = USB_SPEED_FULL;
+        dev->dev.speedmask = 0;
         break;
     case usb_redir_speed_high:
         speed = "high speed";

@@ -1189,6 +1195,7 @@ static void usbredir_device_connect(void *priv,
     case usb_redir_speed_super:
         speed = "super speed";
         dev->dev.speed = USB_SPEED_SUPER;
+        dev->dev.speedmask = 0;
         break;
     default:
         speed = "unknown speed";

@@ -1210,7 +1217,7 @@ static void usbredir_device_connect(void *priv,
              device_connect->device_class);
     }
 
-    dev->dev.speedmask = (1 << dev->dev.speed);
+    dev->dev.speedmask = (1 << dev->dev.speed) | dev->compatible_speedmask;
     dev->device_info = *device_connect;
 
     if (usbredir_check_filter(dev)) {

@@ -1271,6 +1278,14 @@ static void usbredir_interface_info(void *priv,
     }
 }
 
+static void usbredir_mark_fullspeed_incompatible(USBRedirDevice *dev)
+{
+    dev->compatible_speedmask &= ~USB_SPEED_MASK_FULL;
+    if (dev->dev.attached && dev->dev.port->dev->speed == USB_SPEED_FULL) {
+        usbredir_device_disconnect(dev);
+    }
+}
+
 static void usbredir_ep_info(void *priv,
     struct usb_redir_ep_info_header *ep_info)
 {

@@ -1286,7 +1301,14 @@ static void usbredir_ep_info(void *priv,
         case usb_redir_type_invalid:
             break;
         case usb_redir_type_iso:
+            usbredir_mark_fullspeed_incompatible(dev);

hw/usb/redirect.c static void usbredir_ep_info(void *priv, · line 1314

Quoted 10 lines
hw/usb/redirect.c +6 -0
+            /* Fall through */
         case usb_redir_type_interrupt:
+            if (!usbredirparser_peer_has_cap(dev->parser,
+                                     usb_redir_cap_ep_info_max_packet_size) ||
+                ep_info->max_packet_size[i] > 64) {
+                usbredir_mark_fullspeed_incompatible(dev);
+            }
             if (dev->endpoint[i].interval == 0) {
                 ERROR("Received 0 interval for isoc or irq endpoint\n");
                 usbredir_device_disconnect(dev);

Any comments? Or already queued somewhere?

Jan

Signature · 2 lines
Siemens AG, Corporate Technology, CT RTC ITP SDP-DE
Corporate Competence Center Embedded Linux
#13 lore raw
In reply to Jan Kiszka

Hi,

Some comments inline, I've a version with all the comments fixed here:
http://cgit.freedesktop.org/~jwrdegoede/qemu/commit/?h=qemu-kvm-1.2-usbredir&id=5e342d2d2186757cc41b2f834e3503cf10e98c2b

Quoted 34 lines · Jan Kiszka

From: Jan Kiszka <[email protected]>

This follows the logic of host-linux: If a 2.0 device has no ISO endpoint and no interrupt endpoint with a packet size > 64, we can attach it also to an 1.1 host controller. In case the redir server does not report endpoint sizes, play safe and remove the 1.1 compatibility as well. Moreover, if we detect a conflicting change in the configuration after the device was already attached, it will be disconnected immediately.

Signed-off-by Jan Kiszka <[email protected]>

---
Changes in v2:
- fix incompatibility marking via introduction of compatible_speedmask
- disconnect device if incompatibility is detected when already attached

  hw/usb/redirect.c |   24 +++++++++++++++++++++++-
  1 files changed, 23 insertions(+), 1 deletions(-)
hw/usb/redirect.c +1 -0
index b10241a..2099ea4 100644
@@ -105,6 +105,7 @@ struct USBRedirDevice {
      struct usb_redir_interface_info_header interface_info;
      struct usbredirfilter_rule *filter_rules;
      int filter_rules_count;
+    int compatible_speedmask;
  };
 
  static void usbredir_hello(void *priv, struct usb_redir_hello_header *h);

hw/usb/redirect.c static int usbredir_initfn(USBDevice *udev) · line 1043

Quoted 6 lines
hw/usb/redirect.c +3 -0
@@ -1037,6 +1038,9 @@ static int usbredir_initfn(USBDevice *udev)
      /* We'll do the attach once we receive the speed from the usb-host */
      udev->auto_attach = 0;
 
+    /* Will be cleared during setup when we find conflicts */
+    dev->compatible_speedmask = USB_SPEED_MASK_FULL;
+

This needs to be done in disconnect to, as that resets the device state, as the same usb-redir device may be reused to later redirect another device.

Quoted 17 lines
hw/usb/redirect.c +2 -0
      /* Let the backend know we are ready */
      qemu_chr_fe_open(dev->cs);
      qemu_chr_add_handlers(dev->cs, usbredir_chardev_can_read,

@@ -1177,10 +1181,12 @@ static void usbredir_device_connect(void *priv,
      case usb_redir_speed_low:
          speed = "low speed";
          dev->dev.speed = USB_SPEED_LOW;
+        dev->dev.speedmask = 0;
          break;
      case usb_redir_speed_full:
          speed = "full speed";
          dev->dev.speed = USB_SPEED_FULL;
+        dev->dev.speedmask = 0;
          break;
      case usb_redir_speed_high:
          speed = "high speed";

hw/usb/redirect.c static void usbredir_device_connect(void *priv, · line 1201

Quoted 7 lines
hw/usb/redirect.c +1 -0
@@ -1189,6 +1195,7 @@ static void usbredir_device_connect(void *priv,
      case usb_redir_speed_super:
          speed = "super speed";
          dev->dev.speed = USB_SPEED_SUPER;
+        dev->dev.speedmask = 0;
          break;
      default:
          speed = "unknown speed";

All the above setting to 0 of speedmask are not necessary, as immediately afterwards we do:

Quoted 10 lines
hw/usb/redirect.c +1 -1
@@ -1210,7 +1217,7 @@ static void usbredir_device_connect(void *priv,
               device_connect->device_class);
      }
 
-    dev->dev.speedmask = (1 << dev->dev.speed);
+    dev->dev.speedmask = (1 << dev->dev.speed) | dev->compatible_speedmask;
      dev->device_info = *device_connect;
 
      if (usbredir_check_filter(dev)) {

hw/usb/redirect.c static void usbredir_interface_info(void *priv, · line 1284

Quoted 7 lines
hw/usb/redirect.c +4 -0
@@ -1271,6 +1278,14 @@ static void usbredir_interface_info(void *priv,
      }
  }
 
+static void usbredir_mark_fullspeed_incompatible(USBRedirDevice *dev)
+{
+    dev->compatible_speedmask &= ~USB_SPEED_MASK_FULL;
+    if (dev->dev.attached && dev->dev.port->dev->speed == USB_SPEED_FULL) {

This test won't work as for a high speed dev dev->dev.port->dev->speed == USB_SPEED_HIGH

Also this is not the right place to test, as this gets called from middle in the loop over the endpoints, so any ep state cleanup usbredir_device_disconnect() does will then get partially undone by the rest of the loop.

hw/usb/redirect.c static void usbredir_interface_info(void *priv, · line 1285

Quoted 1 line
hw/usb/redirect.c +1 -0
+        usbredir_device_disconnect(dev);

It would be better to use usbredir_device_reject here, this way the spice-client / usbredirserver also gets notified of the device getting disconnected by qemu.

Quoted 12 lines
hw/usb/redirect.c +4 -0
+    }
+}
+
  static void usbredir_ep_info(void *priv,
      struct usb_redir_ep_info_header *ep_info)
  {

@@ -1286,7 +1301,14 @@ static void usbredir_ep_info(void *priv,
          case usb_redir_type_invalid:
              break;
          case usb_redir_type_iso:
+            usbredir_mark_fullspeed_incompatible(dev);

hw/usb/redirect.c static void usbredir_ep_info(void *priv, · line 1314

Quoted 10 lines
hw/usb/redirect.c +6 -0
+            /* Fall through */
          case usb_redir_type_interrupt:
+            if (!usbredirparser_peer_has_cap(dev->parser,
+                                     usb_redir_cap_ep_info_max_packet_size) ||
+                ep_info->max_packet_size[i] > 64) {
+                usbredir_mark_fullspeed_incompatible(dev);
+            }
              if (dev->endpoint[i].interval == 0) {
                  ERROR("Received 0 interval for isoc or irq endpoint\n");
                  usbredir_device_disconnect(dev);

Regards,

Hans

#14 lore raw

Hi,

Quoted 5 lines · Hans de Goede

Hi,

Some comments inline, I've a version with all the comments fixed here:
http://cgit.freedesktop.org/~jwrdegoede/qemu/commit/?h=qemu-kvm-1.2-usbredir&id=5e342d2d2186757cc41b2f834e3503cf10e98c2b

And I now also have redirecting super-speed mass-storage devices to an emulated EHCI controller working:
http://cgit.freedesktop.org/~jwrdegoede/qemu/commit/?h=qemu-kvm-1.2-usbredir&id=a6bdb97481c62b42e4106e7670364e61acde8037

Not sure what will happen when we actually get UAS devices in this scenario though, will need to test, but UAS devices are very hard to find...

Gerd, do you know where I can buy an UAS device (note a German source is fine) ?

Regards,

Hans

#15 lore raw

Hi,

Quoted 6 lines

Not sure what will happen when we actually get UAS devices in this scenario though, will need to test, but UAS devices are very hard to find...

Gerd, do you know where I can buy an UAS device (note a German source is fine) ?

No, I only have virtual ones ;)

/me got a usb3 stick, but it is a BOT device.

cheers,
Gerd

#16 lore raw
In reply to Hans de Goede

Hi,

Quoted 5 lines · Hans de Goede

Hi,

Quoted 2 lines · Hans de Goede

Hi,

Quoted 8 lines
Quoted 3 lines

Some comments inline, I've a version with all the comments fixed here:
http://cgit.freedesktop.org/~jwrdegoede/qemu/commit/?h=qemu-kvm-1.2-usbredir&id=5e342d2d2186757cc41b2f834e3503cf10e98c2b

And I now also have redirecting super-speed mass-storage devices to an emulated EHCI controller working:
http://cgit.freedesktop.org/~jwrdegoede/qemu/commit/?h=qemu-kvm-1.2-usbredir&id=a6bdb97481c62b42e4106e7670364e61acde8037

Oops this causes full speed devices to get attached as high speed, not good, new revision of both patches here:
http://cgit.freedesktop.org/~jwrdegoede/qemu/commit/?h=qemu-kvm-1.2-usbredir&id=76231208ad556cceb07f97db349699421d121030
http://cgit.freedesktop.org/~jwrdegoede/qemu/commit/?h=qemu-kvm-1.2-usbredir&id=7a04479a4dd1d810199fbb6d7d36eae6390c36bc

Regards,

Hans