search for: taps

Hello! I have encountered a bug using tincd with Microsoft Windows: Below you'll find my Setup and my Logs. In short, i do the following: 1. office running tincd 1.0.7 and waiting for connections (no ConnectTo, but this does not resolve the issue) 2. the supporter starts up tincd 1.0.7 on windows (native) 3. ping from windows ("support") to the office: Here the error occours:

On Thu, Sep 06, 2018 at 12:05:25PM +0800, Jason Wang wrote: > This patch implement TUN_MSG_PTR msg_control type. This type allows > the caller to pass an array of XDP buffs to tuntap through ptr field > of the tun_msg_control. Tap will build skb through those XDP buffers. > > This will avoid lots of indirect calls thus improves the icache > utilization and allows to do XDP

--------------------------------------------------------------------------- Backport of the following patch from development: # User Ian Campbell <[hidden email]> # Date 1309968705 -3600 # Node ID e4781aedf817c5ab36f6f3077e44c43c566a2812 # Parent 700d0f03d50aa6619d313c1ff6aea7fd429d28a7 libxl: attempt to cleanup tapdisk processes on disk backend destroy. This patch properly terminates the

Hi, I am testing tinc for a very large scale deployment. I am using tinc-1.1 for testing. test results below are for tinc in switch mode. all other settings are default. test is performed in LAN env. 2 different hosts. I am getting only 24.6 Mbits/sec when tinc is used. without tinc on the same hosts/link I get 95 to 100 Mbits/sec using iperf. Over Tinc: iperf -c 192.168.9.9 -b 100m -l 32k -w

Hello, I'm wondering if anyone out there is doing tap:aio disk devices on a Xen HVM vm with any success. Please let me know if you are, and perhaps your version info and a config file snippet. I've posted this to the xen-users list, and what I'm trying to do seems to be correct, works on Ubuntu, Debian, and XenSource; but it doesn't work on CentOS. Here's the snippet from my

On 4/6/20 9:54 AM, Daniel P. Berrangé wrote: > On Mon, Apr 06, 2020 at 03:47:01PM +0200, Miguel Duarte de Mora Barroso wrote: >> Hi all, >> >> I'm aware that it is possible to plug pre-created macvtap devices to >> libvirt guests - tracked in RFE [0]. >> >> My interpretation of the wording in [1] and [2] is that it is also >> possible to plug

> On Tue, Jun 30, 2020 at 04:02:05PM +0100, Daniel P. Berrangé wrote: > > On Tue, Jun 30, 2020 at 12:59:03PM +0200, Miguel Duarte de Mora Barroso wrote: > > > On Mon, Apr 6, 2020 at 4:03 PM Laine Stump <lstump redhat com> wrote: > > > > > > > > On 4/6/20 9:54 AM, Daniel P. Berrangé wrote: > > > > > On Mon, Apr 06, 2020 at 03:47:01PM

Hello, On KubeVirt, we are trying to pre-create a tap device, then instruct libvirt to consume it (via the type=ethernet , managed='no' attributes). It works as expected, **unless** when we create a multi-queue tap device. The difference when creating the tap device is that we set the multi-queue flag; libvirt throws the following error when consuming it: ``` LibvirtError(Code=38,

This patch implement TUN_MSG_PTR msg_control type. This type allows the caller to pass an array of XDP buffs to tuntap through ptr field of the tun_msg_control. Tap will build skb through those XDP buffers. This will avoid lots of indirect calls thus improves the icache utilization and allows to do XDP batched flushing when doing XDP redirection. Signed-off-by: Jason Wang <jasowang at

On Tue, Jun 30, 2020 at 12:59:03PM +0200, Miguel Duarte de Mora Barroso wrote: > On Mon, Apr 6, 2020 at 4:03 PM Laine Stump <lstump@redhat.com> wrote: > > > > On 4/6/20 9:54 AM, Daniel P. Berrangé wrote: > > > On Mon, Apr 06, 2020 at 03:47:01PM +0200, Miguel Duarte de Mora Barroso wrote: > > >> Hi all, > > >> > > >> I'm aware

Etienne Dechamps <etienne at ...> writes: > > You should mention your tinc version and the version of the > "TAP-Windows Adapter V9" driver for the virtual network device you're > using (i.e. the contents of "Driver version" as seen in the Device > Manager). > > On Mon, Dec 15, 2014 at 10:04 PM, Adam Del Vecchio <adam at ...> wrote: >

Hello everyone, I am running into the following error messages everytime I try to use a docker overlay network on top of tinc-vpn: Error getting read result from Windows tap device {F30C422F-4524-435F-A15B-71A7E08C260D}: (995) The I/O operation has been aborted because of either a thread exit or an application request. Received packet of 106 bytes from ... (... port 655) Writing packet of 106

Hello tincers, I was recently trying to add a new Windows client to my tinc network and ran into an interesting error; upon starting tinc I am met with the usual successful startup (debug level 0; detects TAP device; Ready), however it appears that any writes/reads from the TAP device fail with: "Error while writing to Windows tap device <device ID truncated>: (997) Overlapped I/O

...insertions(+), 8 deletions(-) diff -ruNp org/drivers/net/macvtap.c new/drivers/net/macvtap.c --- org/drivers/net/macvtap.c 2011-10-22 08:38:01.000000000 +0530 +++ new/drivers/net/macvtap.c 2011-11-16 18:34:51.000000000 +0530 @@ -175,6 +175,14 @@ static struct macvtap_queue *macvtap_get if (!numvtaps) goto out; + /* Check if we can use flow to select a queue */ + rxq = skb_get_rxhash(skb); + if (rxq) { + tap = rcu_dereference(vlan->taps[rxq % numvtaps]); + if (tap) + goto out; + } + if (likely(skb_rx_queue_recorded(skb))) { rxq = skb_get_rx_queue(skb); @@ -186,14 +194,6 @@ st...

...insertions(+), 8 deletions(-) diff -ruNp org/drivers/net/macvtap.c new/drivers/net/macvtap.c --- org/drivers/net/macvtap.c 2011-10-22 08:38:01.000000000 +0530 +++ new/drivers/net/macvtap.c 2011-11-16 18:34:51.000000000 +0530 @@ -175,6 +175,14 @@ static struct macvtap_queue *macvtap_get if (!numvtaps) goto out; + /* Check if we can use flow to select a queue */ + rxq = skb_get_rxhash(skb); + if (rxq) { + tap = rcu_dereference(vlan->taps[rxq % numvtaps]); + if (tap) + goto out; + } + if (likely(skb_rx_queue_recorded(skb))) { rxq = skb_get_rx_queue(skb); @@ -186,14 +194,6 @@ st...

If VHOST_NET is configured but TUN and TAP are not, then the kernel will build but vhost will not work correctly since it can't setup the necessary tap device. A solution is to select it. Fixes: 9a393b5d5988 ("tap: tap as an independent module") Signed-off-by: Stephen Hemminger <stephen at networkplumber.org> --- drivers/vhost/Kconfig | 3 ++- 1 file changed, 2

On Wed, Sep 23, 2020 at 05:44:28PM +0100, Daniel P. Berrangé wrote: > On Tue, Sep 22, 2020 at 01:48:08PM +0200, Miguel Duarte de Mora Barroso wrote: > > Hello, > > > > On KubeVirt, we are trying to pre-create a tap device, then instruct > > libvirt to consume it (via the type=ethernet , managed='no' > > attributes). > > > > It works as

On Mon, Apr 6, 2020 at 4:03 PM Laine Stump <lstump@redhat.com> wrote: > > On 4/6/20 9:54 AM, Daniel P. Berrangé wrote: > > On Mon, Apr 06, 2020 at 03:47:01PM +0200, Miguel Duarte de Mora Barroso wrote: > >> Hi all, > >> > >> I'm aware that it is possible to plug pre-created macvtap devices to > >> libvirt guests - tracked in RFE [0]. >

Hi Is it true that the GPLPV drivers is incompatible with QCOW images? The Windows DomU works fine with raw standard "file:/" images, and paravirtualized Linux DomU works fine with QCOW and raw images. If i use QCOW images with my Windows DomU''s i get a stop error: 0x00000007b (inaccessible boot device). It looks like the blkback.3.hda process, that normally starts with

Hello, I'm having some doubts about consuming an existing - already configured - tap device from libvirt (with `managed='no' ` attribute set). In KubeVirt, we want to have the consumer side of the tap device run without the NET_ADMIN capability, which requires the UID / GID of the tap creator / opener to match, as per the kernel code in [0]. As such, we create the tap device (with