#define ERR_VIRTIO_TXQ_DISABLED 6
-static int virtio_free(struct vm_device * dev)
-{
-
- return 0;
-}
+
static int virtio_init_state(struct virtio_net_state * virtio)
{
virtio->virtio_cfg.host_features = 0; // (1 << VIRTIO_NET_F_MAC);
if ((v3_lock_init(&(virtio->rx_lock)) == -1) ||
- (v3_lock_init(&(virtio->tx_lock)) == -1)){
+ (v3_lock_init(&(virtio->tx_lock)) == -1)){
PrintError("Virtio NIC: Failure to init locks for net_state\n");
}
return 0;
}
-static int pkt_tx(struct guest_info * core, struct virtio_net_state * virtio, struct vring_desc * buf_desc)
+static int
+pkt_tx(struct guest_info * core,
+ struct virtio_net_state * virtio,
+ struct vring_desc * buf_desc)
{
uint8_t * buf = NULL;
uint32_t len = buf_desc->length;
return -ERR_VIRTIO_OTHER;
}
- return virtio->net_ops->send(buf, len, virtio->backend_data, NULL);
+ return virtio->net_ops->send(buf, len, virtio->backend_data);
}
-static 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 offset)
+static 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 offset)
{
uint32_t len;
uint8_t * desc_buf = NULL;
/* guest free some pkts from rx queue */
-static int handle_rx_kick(struct guest_info *core, struct virtio_net_state * virtio)
+static int handle_rx_kick(struct guest_info *core,
+ struct virtio_net_state * virtio)
{
unsigned long flags;
flags = v3_lock_irqsave(virtio->rx_lock);
- virtio->net_ops->start_rx(virtio->backend_data);
- disable_cb(&virtio->rx_vq);
+ if(virtio->net_ops->start_rx != NULL){
+ virtio->net_ops->start_rx(virtio->backend_data);
+ }
+ //disable_cb(&virtio->rx_vq);
v3_unlock_irqrestore(virtio->rx_lock, flags);
}
-static int handle_ctrl(struct guest_info *core, struct virtio_net_state * virtio) {
+static int handle_ctrl(struct guest_info *core,
+ struct virtio_net_state * virtio) {
return 0;
}
-static int handle_pkt_tx(struct guest_info *core, struct virtio_net_state * virtio_state)
+static int handle_pkt_tx(struct guest_info *core,
+ struct virtio_net_state * virtio_state)
{
struct virtio_queue * q = &(virtio_state->tx_vq);
struct virtio_net_hdr * hdr = NULL;
static int virtio_setup_queue(struct guest_info *core,
- struct virtio_net_state * virtio_state,
- struct virtio_queue * queue,
- addr_t pfn,
- addr_t page_addr) {
+ struct virtio_net_state * virtio_state,
+ struct virtio_queue * queue,
+ addr_t pfn, addr_t page_addr) {
queue->pfn = pfn;
queue->ring_desc_addr = page_addr;
return 0;
}
-static int virtio_io_write(struct guest_info *core, uint16_t port, void * src, uint_t length, void * private_data)
+static int virtio_io_write(struct guest_info *core,
+ uint16_t port, void * src,
+ uint_t length, void * private_data)
{
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);
switch (queue_idx) {
case 0:
virtio_setup_queue(core, virtio, &virtio->rx_vq, pfn, page_addr);
- disable_cb(&virtio->rx_vq);
+ //disable_cb(&virtio->rx_vq);
break;
case 1:
virtio_setup_queue(core, virtio, &virtio->tx_vq, pfn, page_addr);
- disable_cb(&virtio->tx_vq);
+ //disable_cb(&virtio->tx_vq);
break;
case 2:
virtio_setup_queue(core, virtio, &virtio->ctrl_vq, pfn, page_addr);
uint16_t queue_idx = *(uint16_t *)src;
if (queue_idx == 0){
handle_rx_kick(core, virtio);
- PrintError("rx kick\n");
} else if (queue_idx == 1){
- PrintError("tx kick\n");
if (handle_pkt_tx(core, virtio) == -1) {
PrintError("Could not handle NIC Notification\n");
return -1;
return length;
}
-static int virtio_io_read(struct guest_info *core, uint16_t port, void * dst, uint_t length, void * private_data)
+static int virtio_io_read(struct guest_info *core,
+ uint16_t port, void * dst,
+ uint_t length, void * private_data)
{
struct virtio_net_state * virtio = (struct virtio_net_state *)private_data;
int port_idx = port % virtio->io_range_size;
int ret_val = -ERR_VIRTIO_OTHER;
int raw = 1;
+#ifndef CONFIG_DEBUG_VIRTIO_NET
+ {
+ PrintDebug("Virtio-NIC: virtio_rx: size: %d\n", size);
+ //v3_hexdump(buf, size, NULL, 0);
+ }
+#endif
+
flags = v3_lock_irqsave(virtio->rx_lock);
virtio->pkt_recv ++;
return ret_val;
}
+static int virtio_free(struct virtio_net_state * virtio) {
+
+ // unregister from PCI
+
+ V3_Free(virtio);
+ return 0;
+}
+
static struct v3_device_ops dev_ops = {
- .free = virtio_free,
- .reset = NULL,
- .start = NULL,
- .stop = NULL,
+ .free = (int (*)(void *))virtio_free,
};
-static int register_dev(struct virtio_dev_state * virtio, struct virtio_net_state * net_state)
+static int register_dev(struct virtio_dev_state * virtio,
+ struct virtio_net_state * net_state)
{
struct pci_device * pci_dev = NULL;
struct v3_pci_bar bars[6];
net_state->net_ops = ops;
net_state->backend_data = private_data;
+ net_state->virtio_dev = virtio;
+
ops->recv = virtio_rx;
ops->poll = virtio_nic_poll;
static int virtio_init(struct v3_vm_info * vm, v3_cfg_tree_t * cfg) {
struct vm_device * pci_bus = v3_find_dev(vm, v3_cfg_val(cfg, "bus"));
struct virtio_dev_state * virtio_state = NULL;
- char * name = v3_cfg_val(cfg, "name");
+ char * dev_id = v3_cfg_val(cfg, "ID");
- PrintDebug("Virtio NIC: Initializing VIRTIO Network device: %s\n", name);
+ PrintDebug("Virtio NIC: Initializing VIRTIO Network device: %s\n", dev_id);
if (pci_bus == NULL) {
PrintError("Virtio NIC: VirtIO devices require a PCI Bus");
virtio_state->pci_bus = pci_bus;
virtio_state->vm = vm;
- struct vm_device * dev = v3_allocate_device(name, &dev_ops, virtio_state);
- if (v3_attach_device(vm, dev) == -1) {
- PrintError("Virtio NIC: Could not attach device %s\n", name);
+ struct vm_device * dev = v3_add_device(vm, dev_id, &dev_ops, virtio_state);
+
+ if (dev == NULL) {
+ PrintError("Virtio NIC: Could not attach device %s\n", dev_id);
+ V3_Free(virtio_state);
return -1;
}
- if (v3_dev_add_net_frontend(vm, name, connect_fn, (void *)virtio_state) == -1) {
- PrintError("Virtio NIC: Could not register %s as net frontend\n", name);
+ if (v3_dev_add_net_frontend(vm, dev_id, connect_fn, (void *)virtio_state) == -1) {
+ PrintError("Virtio NIC: Could not register %s as net frontend\n", dev_id);
+ v3_remove_device(dev);
return -1;
}