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2012-01-17usb-redir: Improve some debugging messagesHans de Goede
Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-01-17usb-redir: Try to keep our buffer size near the target sizeHans de Goede
Before this patch we would allow the (iso) buffer to grow unlimited (and it would under certain circumstances) leading to way too high latencies for iso data streams. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-01-17usb-redir: Pre-fill our isoc input buffer before sending pkts to the hostHans de Goede
This is something which should have been done from the first version of usb-redir, but wasn't. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-01-17usb-redir: Dynamically adjust iso buffering size based on ep intervalHans de Goede
Note the bufpq_target_size id stored in the endpoint info struct, even though it only used once. This is done because it will be referenced from other code in a follow up patch. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-01-17usb-redir: Clear iso / irq error when stopping the streamHans de Goede
And ignore status messages from the client which arrive after stream stop (the stream stop send to the client and an error status reported by the client my cross each other due to network latency). Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-01-06Strip trailing '\n' from error_report()'s first argument (again)Markus Armbruster
Commit 6daf194d got rid of them, but Hans and Gerd added some more lately. Tracked down with this Coccinelle semantic patch: @r@ expression fmt; position p; @@ error_report(fmt, ...)@p @script:python@ fmt << r.fmt; p << r.p; @@ if "\\n" in str(fmt): print "%s:%s:%s:%s" % (p[0].file, p[0].line, p[0].column, fmt) Signed-off-by: Markus Armbruster <armbru@redhat.com>
2011-12-06fix typo: delete redundant semicolonDong Xu Wang
Double semicolons should be single. Signed-off-by: Dong Xu Wang <wdongxu@linux.vnet.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-11-28usb-redir: Don't try to write to the chardev after a close eventHans de Goede
Since we handle close async in a bh, do_write and thus write can get called after receiving a close event. This patch adds a check to the usb-redir write callback to not call qemu_chr_fe_write on a closed backend. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-11-28usb-redir: Device disconnect + re-connect robustness fixesHans de Goede
These fixes mainly target the other side sending some (error status) packets after a disconnect packet. In some cases these would get queued up and then reported to the controller when a new device gets connected. * Fully reset device state on disconnect * Don't allow a connect message when already connected * Ignore iso and interrupt status messages when disconnected Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-11-28usb-redir: Call qemu_chr_fe_open/closeHans de Goede
To let the chardev now we're ready start receiving data. This is necessary with the spicevmc chardev to get it registered with the spice-server. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-22char: rename qemu_chr_close() -> qemu_chr_delete()Anthony Liguori
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-22char: rename qemu_chr_write() -> qemu_chr_fe_write()Anthony Liguori
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-20Use glib memory allocation and free functionsAnthony Liguori
qemu_malloc/qemu_free no longer exist after this commit. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-04usb: use iovecs in USBPacketGerd Hoffmann
Zap data pointer from USBPacket, add a QEMUIOVector instead. Add a bunch of helper functions to manage USBPacket data. Switch over users to the new interface. Note that USBPacket->len was used for two purposes: First to pass in the buffer size and second to return the number of transfered bytes or the status code on async transfers. There is a new result variable for the latter. A new status code was added to catch uninitialized result. Nobody creates iovecs with more than one element (yet). Some users are (temporarely) limited to iovecs with a single element to keep the patch size as small as possible. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2011-07-22USB: add usb network redirection supportHans de Goede
This patch adds support for a usb-redir device, which takes a chardev as a communication channel to an actual usbdevice using the usbredir protocol. Compiling the usb-redir device requires usbredir-0.3 to be installed for the usbredir protocol parser, usbredir-0.3 also contains a server for redirecting usb traffic from an actual usb device. You can get the 0.3 release of usbredir here: http://people.fedoraproject.org/~jwrdegoede/usbredir-0.3.tar.bz2 (getting a more formal site for it is a WIP) Example usage: 1) Start usbredirserver for a usb device: sudo usbredirserver 045e:0772 2) Start qemu with usb2 support + a chardev talking to usbredirserver + a usb-redir device using this chardev: qemu ... \ -readconfig docs/ich9-ehci-uhci.cfg \ -chardev socket,id=usbredirchardev,host=localhost,port=4000 \ -device usb-redir,chardev=usbredirchardev,id=usbredirdev Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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