![]() prompt: Logitech receivers full support.The configuration item CONFIG_HID_LOGITECH_DJ: Logitech receivers full support found in drivers/hid/Kconfig The Linux kernel configuration item CONFIG_HID_LOGITECH_DJ has multiple definitions: ![]() So for some users/configurations at least, the one-line patch to the TUN driver may prove very beneficial in a better out-of-the-box experience.CONFIG_HID_LOGITECH_DJ: Logitech receivers full support General informations Alternative might be to explicitly report UNKNOWN and let the application/user decide on a right value for them." 10Gbps also seems like a more or less fair assumption these days, even though CPUs can do more. This also creates additional confusion among users.īump the advertised speed to at least match the veth. Advertised 10Mbps doesn't match reality in a modern world, so users have to always manually override the value with something more sensible to avoid configuration issues, e.g. For example, Open vSwitch is using link speed as an upper bound for QoS configuration if user didn't specify the maximum rate. Some userspace applications rely on the current link speed in certain situations. For example, veth reports 10Gbps since its introduction in 2007. Other virtual ports typically report much higher speeds. It might have been a good assumption 18 years ago, but CPUs and network stack came a long way since then. "The 10Mbps link speed was set in 2004 when the ethtool interface was initially added to the tun driver. ![]() Ilya commented in his patch entitled " net: tun: 1000x speed up" sent out this morning: ![]() ![]() Ilya Maximets of Open Virtual Network (OVN) sent out a patch in aiming to finally raise that limit. That was good back then but since then the Linux networking stack has advanced a great deal as has hardware. Nearly two decades ago the Linux TUN driver set an advertised speed of a 10Mbps link. Those unfamiliar with the TUN driver can see the kernel documentation. This TUN/TAP "tunneling" driver has long been available within the Linux kernel for packet receive/send for user-space programs via /dev/net/tun that can be used by VPNs, Open vSwitch, and other purposes. Linux's universal TUN driver that provides packet reception and transmission for user-space programs may soon see a 1000x speed-up with a proposed patch sent out today for this network driver. ![]()
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