ring->tx_pending = virtqueue_get_vring_size(vi->sq[0].vq);
}
+static int virtnet_send_ctrl_coal_vq_cmd(struct virtnet_info *vi,
+ u16 vqn, u32 max_usecs, u32 max_packets);
+
static int virtnet_set_ringparam(struct net_device *dev,
struct ethtool_ringparam *ring,
struct kernel_ethtool_ringparam *kernel_ring,
err = virtnet_tx_resize(vi, sq, ring->tx_pending);
if (err)
return err;
+
+ /* Upon disabling and re-enabling a transmit virtqueue, the device must
+ * set the coalescing parameters of the virtqueue to those configured
+ * through the VIRTIO_NET_CTRL_NOTF_COAL_TX_SET command, or, if the driver
+ * did not set any TX coalescing parameters, to 0.
+ */
+ err = virtnet_send_ctrl_coal_vq_cmd(vi, txq2vq(i),
+ vi->intr_coal_tx.max_usecs,
+ vi->intr_coal_tx.max_packets);
+ if (err)
+ return err;
+
+ vi->sq[i].intr_coal.max_usecs = vi->intr_coal_tx.max_usecs;
+ vi->sq[i].intr_coal.max_packets = vi->intr_coal_tx.max_packets;
}
if (ring->rx_pending != rx_pending) {
err = virtnet_rx_resize(vi, rq, ring->rx_pending);
if (err)
return err;
+
+ /* The reason is same as the transmit virtqueue reset */
+ err = virtnet_send_ctrl_coal_vq_cmd(vi, rxq2vq(i),
+ vi->intr_coal_rx.max_usecs,
+ vi->intr_coal_rx.max_packets);
+ if (err)
+ return err;
+
+ vi->rq[i].intr_coal.max_usecs = vi->intr_coal_rx.max_usecs;
+ vi->rq[i].intr_coal.max_packets = vi->intr_coal_rx.max_packets;
}
}