Default configuration

The default configuration (no rxqmap or txqmap argument passed to the device) depends on the QEMU version.

With QEMU >= 2.5, the association of 6WINDGate DPDK queues with virtio rings use the Dynamic auto mode: the qmap configuration is automatically adapted to the number of virtio rings requested by the guest.

With QEMU < 2.5, the default configuration uses the Static auto mode, with round-robin and one ring for rxqmap and txqmap. This configuration works only when QEMU is configured with 1 virtio ring, as the fast path sends and receives data only on the first virtio ring. If QEMU is configured to have several virtio rings this default configuration must not be used (otherwise packets sent by the guest may be lost).