/*copy data into ring buffer */
static inline int copy_data_to_desc(struct guest_info * core,
- struct virtio_net_state * virtio_state,
- struct vring_desc * desc,
- uchar_t * buf,
- uint_t buf_len,
- uint_t dst_offset){
+ struct virtio_net_state * virtio_state,
+ struct vring_desc * desc,
+ uchar_t * buf,
+ uint_t buf_len,
+ uint_t dst_offset){
uint32_t len;
uint8_t * desc_buf = NULL;
v3_unlock_irqrestore(virtio_state->tx_lock, flags);
if (txed && !(q->avail->flags & VIRTIO_NO_IRQ_FLAG)) {
- v3_pci_raise_irq(virtio_state->virtio_dev->pci_bus, 0, virtio_state->pci_dev);
+ v3_pci_raise_irq(virtio_state->virtio_dev->pci_bus,
+ 0, virtio_state->pci_dev);
virtio_state->virtio_cfg.pci_isr = 0x1;
virtio_state->stats.rx_interrupts ++;
}
struct virtio_net_state * virtio = (struct virtio_net_state *)private_data;
int port_idx = port % virtio->io_range_size;
- PrintDebug("VIRTIO NIC %p Write for port %d (index=%d) len=%d, value=%x\n", private_data,
- port, port_idx, length, *(uint32_t *)src);
+ PrintDebug("VIRTIO NIC %p Write for port %d (index=%d) len=%d, value=%x\n",
+ private_data, port, port_idx,
+ length, *(uint32_t *)src);
switch (port_idx) {
case GUEST_FEATURES_PORT:
uint16_t queue_idx = virtio->virtio_cfg.vring_queue_selector;
switch (queue_idx) {
case 0:
- virtio_setup_queue(core, virtio, &virtio->rx_vq, pfn, page_addr);
+ virtio_setup_queue(core, virtio,
+ &virtio->rx_vq,
+ pfn, page_addr);
break;
case 1:
- virtio_setup_queue(core, virtio, &virtio->tx_vq, pfn, page_addr);
+ virtio_setup_queue(core, virtio,
+ &virtio->tx_vq,
+ pfn, page_addr);
if(virtio->tx_notify == 0){
disable_cb(&virtio->tx_vq);
vnet_thread_wakeup(virtio->poll_thread);
}
break;
case 2:
- virtio_setup_queue(core, virtio, &virtio->ctrl_vq, pfn, page_addr);
+ virtio_setup_queue(core, virtio,
+ &virtio->ctrl_vq,
+ pfn, page_addr);
break;
default:
break;
int port_idx = port % virtio->io_range_size;
uint16_t queue_idx = virtio->virtio_cfg.vring_queue_selector;
- PrintDebug("Virtio NIC %p: Read for port 0x%x (index =%d), length=%d\n", private_data,
- port, port_idx, length);
+ PrintDebug("Virtio NIC %p: Read for port 0x%x (index =%d), length=%d\n",
+ private_data, port, port_idx, length);
switch (port_idx) {
case HOST_FEATURES_PORT:
case VIRTIO_ISR_PORT:
*(uint8_t *)dst = virtio->virtio_cfg.pci_isr;
virtio->virtio_cfg.pci_isr = 0;
- v3_pci_lower_irq(virtio->virtio_dev->pci_bus, 0, virtio->pci_dev);
+ v3_pci_lower_irq(virtio->virtio_dev->pci_bus,
+ 0, virtio->pci_dev);
break;
case VIRTIO_NET_CONFIG ... VIRTIO_NET_CONFIG + ETH_ALEN:
break;
default:
- PrintError("Virtio NIC: Read of Unhandled Virtio Read:%d\n", port_idx);
+ PrintError("Virtio NIC: Read of Unhandled Virtio Read:%d\n",
+ port_idx);
return -1;
}
uint32_t offset = 0;
hdr_len = (virtio->mergeable_rx_bufs)?
- sizeof(struct virtio_net_hdr_mrg_rxbuf):sizeof(struct virtio_net_hdr);
+ sizeof(struct virtio_net_hdr_mrg_rxbuf):
+ sizeof(struct virtio_net_hdr);
if(virtio->mergeable_rx_bufs){/* merged buffer */
struct vring_desc * hdr_desc;
len = copy_data_to_desc(&(virtio->virtio_dev->vm->cores[0]),
virtio, buf_desc, buf+offset, size-offset, 0);
if (len < 0){
- V3_Net_Print(2, "Virtio NIC:merged buffer, %d buffer size %d\n", hdr.num_buffers, len);
+ V3_Net_Print(2, "Virtio NIC:merged buffer, %d buffer size %d\n",
+ hdr.num_buffers, len);
q->cur_avail_idx = old_idx;
goto err_exit;
}
len = copy_data_to_desc(&(virtio->virtio_dev->vm->cores[0]),
virtio, buf_desc, (uchar_t *)&(hdr.hdr), hdr_len, 0);
if(len < hdr_len){
- V3_Net_Print(2, "Virtio NIC: rx copy header error %d, hdr_len %d\n", len, hdr_len);
+ V3_Net_Print(2, "Virtio NIC: rx copy header error %d, hdr_len %d\n",
+ len, hdr_len);
goto err_exit;
}
buf_desc->flags &= ~VIRTIO_NEXT_FLAG;
if(offset < size){
- V3_Net_Print(2, "Virtio NIC: rx not enough ring buffer, buffer size %d\n", len);
+ V3_Net_Print(2, "Virtio NIC: rx not enough ring buffer, buffer size %d\n",
+ len);
goto err_exit;
}
v3_unlock_irqrestore(virtio->rx_lock, flags);
if (!(q->avail->flags & VIRTIO_NO_IRQ_FLAG) || kick_guest) {
- V3_Net_Print(2, "Virtio NIC: RX Raising IRQ %d\n", virtio->pci_dev->config_header.intr_line);
+ V3_Net_Print(2, "Virtio NIC: RX Raising IRQ %d\n",
+ virtio->pci_dev->config_header.intr_line);
virtio->virtio_cfg.pci_isr = 0x1;
v3_pci_raise_irq(virtio->virtio_dev->pci_bus, 0, virtio->pci_dev);
/* notify guest if it is in guest mode */
if((kick_guest || virtio->rx_notify == 1) &&
V3_Get_CPU() != virtio->virtio_dev->vm->cores[0].pcpu_id){
- v3_interrupt_cpu(virtio->virtio_dev->vm, virtio->virtio_dev->vm->cores[0].pcpu_id, 0);
+ v3_interrupt_cpu(virtio->virtio_dev->vm,
+ virtio->virtio_dev->vm->cores[0].pcpu_id,
+ 0);
}
return 0;
static int virtio_tx_flush(void * args){
struct virtio_net_state *virtio = (struct virtio_net_state *)args;
- V3_Print("Virtio TX Poll Thread Starting for %s\n", virtio->vm->name);
+ V3_Print("Virtio TX Poll Thread Starting for %s\n",
+ virtio->vm->name);
while(1){
if(virtio->tx_notify == 0){
int tmp_ports = num_ports;
int i;
- // This gets the number of ports, rounded up to a power of 2
+ /* This gets the number of ports, rounded up to a power of 2 */
net_state->io_range_size = 1; // must be a power of 2
while (tmp_ports > 0) {
tmp_ports >>= 1;
}
/* this is to account for any low order bits being set in num_ports
- * if there are none, then num_ports was already a power of 2 so we shift right to reset it
- */
+ * if there are none, then num_ports was already a power of 2 so we shift right to reset it
+ */
if ((num_ports & ((net_state->io_range_size >> 1) - 1)) == 0) {
net_state->io_range_size >>= 1;
}
bars[i].type = PCI_BAR_NONE;
}
- PrintDebug("Virtio-NIC io_range_size = %d\n", net_state->io_range_size);
+ PrintDebug("Virtio-NIC io_range_size = %d\n",
+ net_state->io_range_size);
bars[0].type = PCI_BAR_IO;
bars[0].default_base_port = -1;
net_state->tx_notify = 0;
net_state->rx_notify = 0;
- net_state->timer = v3_add_timer(&(info->cores[0]),&timer_ops,net_state);
+ net_state->timer = v3_add_timer(&(info->cores[0]),
+ &timer_ops,net_state);
PrintError("net_state 0x%p\n", (void *)net_state);
ops->frontend_data = net_state;
memcpy(ops->fnt_mac, virtio->mac, ETH_ALEN);
- net_state->poll_thread = vnet_start_thread(virtio_tx_flush, (void *)net_state, "Virtio_Poll");
+ net_state->poll_thread = vnet_start_thread(virtio_tx_flush,
+ (void *)net_state, "Virtio_Poll");
net_state->status = 1;