* and the University of New Mexico. You can find out more at
* http://www.v3vee.org
*
- * Copyright (c) 2008, Jack Lange <jarusl@cs.northwestern.edu>
* Copyright (c) 2008, Lei Xia <lxia@northwestern.edu>
+ * Copyright (c) 2008, Cui Zheng <cuizheng@cs.unm.edu>
* Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org>
* All rights reserved.
*
- * Author: Jack Lange <jarusl@cs.northwestern.edu>
- * Lei Xia <lxia@northwestern.edu>
+ * Author: Lei Xia <lxia@northwestern.edu>
+ * Cui Zheng <cuizheng@cs.unm.edu>
*
*
* This is free software. You are permitted to use,
#include <devices/lnx_virtio_pci.h>
#include <palacios/vm_guest_mem.h>
#include <palacios/vmm_sprintf.h>
+#include <palacios/vmm_vnet.h>
+#include <palacios/vmm_lock.h>
#include <devices/pci.h>
#define PrintDebug(fmt, args...)
#endif
-/* The feature bitmap for virtio net */
-#define VIRTIO_NET_F_CSUM 0 /* Host handles pkts w/ partial csum */
-#define VIRTIO_NET_F_GUEST_CSUM 1 /* Guest handles pkts w/ partial csum */
-#define VIRTIO_NET_F_MAC 5 /* Host has given MAC address. */
-#define VIRTIO_NET_F_GSO 6 /* Host handles pkts w/ any GSO type */
-#define VIRTIO_NET_F_GUEST_TSO4 7 /* Guest can handle TSOv4 in. */
-#define VIRTIO_NET_F_GUEST_TSO6 8 /* Guest can handle TSOv6 in. */
-#define VIRTIO_NET_F_GUEST_ECN 9 /* Guest can handle TSO[6] w/ ECN in. */
-#define VIRTIO_NET_F_GUEST_UFO 10 /* Guest can handle UFO in. */
-#define VIRTIO_NET_F_HOST_TSO4 11 /* Host can handle TSOv4 in. */
-#define VIRTIO_NET_F_HOST_TSO6 12 /* Host can handle TSOv6 in. */
-#define VIRTIO_NET_F_HOST_ECN 13 /* Host can handle TSO[6] w/ ECN in. */
-#define VIRTIO_NET_F_HOST_UFO 14 /* Host can handle UFO in. */
-#define VIRTIO_NET_F_MRG_RXBUF 15 /* Host can merge receive buffers. */
-#define VIRTIO_NET_F_STATUS 16 /* virtio_net_config.status available */
-#define VIRTIO_NET_F_CTRL_VQ 17 /* Control channel available */
-#define VIRTIO_NET_F_CTRL_RX 18 /* Control channel RX mode support */
-#define VIRTIO_NET_F_CTRL_VLAN 19 /* Control channel VLAN filtering */
-#define VIRTIO_NET_F_CTRL_RX_EXTRA 20 /* Extra RX mode control support */
-#define VIRTIO_NET_S_LINK_UP 1 /* Link is up */
+#define VIRTIO_NIC_PROFILE
-/* Maximum packet size we can receive from tap device: header + 64k */
+#define VIRTIO_NET_S_LINK_UP 1 /* Link is up */
#define VIRTIO_NET_MAX_BUFSIZE (sizeof(struct virtio_net_hdr) + (64 << 10))
struct virtio_net_hdr {
#define VIRTIO_NET_HDR_GSO_NONE 0 /* Not a GSO frame */
uint8_t gso_type;
-
uint16_t hdr_len; /* Ethernet + IP + tcp/udp hdrs */
uint16_t gso_size; /* Bytes to append to hdr_len per frame */
uint16_t csum_start; /* Position to start checksumming from */
}__attribute__((packed));
-#define QUEUE_SIZE 256
+#define QUEUE_SIZE 1024
#define CTRL_QUEUE_SIZE 64
#define ETH_ALEN 6
struct virtio_net_config net_cfg;
struct virtio_config virtio_cfg;
+ struct vm_device * dev;
struct pci_device * pci_dev;
int io_range_size;
struct virtio_queue tx_vq; //index 1, svq in Linux virtio driver, handle packet from guest
struct virtio_queue ctrl_vq; //index 2, ctrol info from guest
+ ulong_t pkt_sent, pkt_recv, pkt_drop;
+ struct gen_queue * inpkt_q;
+
struct v3_dev_net_ops * net_ops;
void * backend_data;
struct list_head dev_link;
};
-#if 1
-//Temporarly for debug
-static void print_packet(uchar_t *pkt, int size) {
- PrintDebug("Virtio Nic: print_data_packet: size: %d\n", size);
- v3_hexdump(pkt, size, NULL, 0);
-}
-
-static struct virtio_net_state *temp_net_states[3];
-static int net_idx = 0;
-
-static int __virtio_dev_send(uchar_t * buf, uint32_t size, void *private_data);
-
-static int send(uint8_t * buf, uint32_t count, void * private_data, struct vm_device *dest_dev)
-{
- PrintDebug("Virito NIC: In sending stub, guest %p\n", private_data);
- print_packet(buf, count);
- struct virtio_net_state *virtio_state = (struct virtio_net_state *)private_data;
-
- if (virtio_state == temp_net_states[0])
- __virtio_dev_send(buf, count, temp_net_states[1]);
-
- if (virtio_state == temp_net_states[1]){ //return a RARP packet
- __virtio_dev_send(buf, count, temp_net_states[0]);
- }
-
- return count;
-}
-
-static int receive(uint8_t * buf, uint32_t count, void * private_data, struct vm_device *src_dev)
-{
- PrintDebug("Virito NIC: In receiveing stub\n");
-
- return 0;
-}
-
-#endif
+#define ETHERNET_PACKET_LEN 1514
+struct eth_pkt {
+ uint32_t size; //size of data
+ char data[ETHERNET_PACKET_LEN];
+}__attribute__((packed));
static int virtio_free(struct vm_device * dev)
{
return -1;
}
-static int virtio_reset(struct virtio_net_state * virtio)
+static int virtio_init_state(struct virtio_net_state * virtio)
{
virtio->rx_vq.ring_desc_addr = 0;
virtio->rx_vq.ring_avail_addr = 0;
//virtio->virtio_cfg.status = VIRTIO_NET_S_LINK_UP;
virtio->virtio_cfg.pci_isr = 0;
+ virtio->pkt_sent = virtio->pkt_recv = virtio->pkt_drop = 0;
+
+ virtio->inpkt_q = v3_create_queue();
+ v3_init_queue(virtio->inpkt_q);
+
return 0;
}
-
-//sending guest's packet to network sink
-static int pkt_write(struct virtio_net_state * virtio, struct vring_desc * buf_desc)
+static int pkt_tx(struct virtio_net_state * virtio, struct vring_desc * buf_desc)
{
- //struct virtio_net_state * virtio = (struct virtio_net_state *)dev->private_data;
uint8_t * buf = NULL;
uint32_t len = buf_desc->length;
return -1;
}
- PrintDebug("Length=%d\n", buf_desc->length);
- PrintDebug("Buffer Descriptor (ptr=%p) gpa=%p, len=%d, flags=%x, next=%d, buf address: %p, send address: %p\n", buf_desc,
- (void *)(buf_desc->addr_gpa), buf_desc->length, buf_desc->flags, buf_desc->next, buf, virtio->net_ops->send);
-
if (virtio->net_ops->send(buf, len, (void *)virtio, NULL) == -1) {
return -1;
}
return 0;
}
-
static int build_receive_header(struct virtio_net_hdr * hdr, const void * buf, int raw) {
hdr->flags = 0;
return 0;
}
-
-//sending guest's packet to network sink
static int copy_data_to_desc(struct virtio_net_state * virtio_state, struct vring_desc * desc, uchar_t * buf, uint_t buf_len)
{
uint32_t len;
PrintError("Could not translate buffer address\n");
return -1;
}
-
len = (desc->length < buf_len)?desc->length:buf_len;
-
memcpy(desc_buf, buf, len);
- PrintDebug("Length=%d\n", len);
-
return len;
}
-
//send data to guest
-static int send_pkt_to_guest(struct virtio_net_state * virtio, uchar_t * buf, uint_t size, int raw, void * private_data)
+int send_pkt_to_guest(struct virtio_net_state * virtio, uchar_t * buf, uint_t size, int raw, void * private_data)
{
struct virtio_queue * q = &(virtio->rx_vq);
struct virtio_net_hdr hdr;
uint32_t hdr_len = sizeof(struct virtio_net_hdr);
uint32_t data_len = size;
uint32_t offset = 0;
+
+ PrintDebug("VIRTIO NIC: sending packet to virtio nic %p, size:%d", virtio, size);
- PrintDebug("VIRTIO NIC: Handle RX: cur_index=%d (mod=%d), avail_index=%d\n",
- q->cur_avail_idx, q->cur_avail_idx % q->queue_size, q->avail->index);
-
- PrintDebug("VIRTIO NIC: sending packet to net_state %p, size:%d", virtio, size);
-
+ virtio->pkt_recv ++;
if (!raw) {
data_len -= hdr_len;
}
build_receive_header(&hdr, buf, 1);
- //queue is not set yet
if (q->ring_avail_addr == 0) {
PrintError("Queue is not set\n");
return -1;
}
-
- if (q->cur_avail_idx < q->avail->index) {
+ if (q->last_avail_idx > q->avail->index)
+ q->idx_overflow = true;
+ q->last_avail_idx = q->avail->index;
+
+ if (q->cur_avail_idx < q->avail->index || (q->idx_overflow && q->cur_avail_idx < q->avail->index+65536)){
addr_t hdr_addr = 0;
uint16_t hdr_idx = q->avail->ring[q->cur_avail_idx % q->queue_size];
uint16_t buf_idx = 0;
struct vring_desc * hdr_desc = NULL;
- PrintDebug("Descriptor index=%d\n", q->cur_avail_idx % q->queue_size);
-
hdr_desc = &(q->desc[hdr_idx]);
-
- PrintDebug("Header Descriptor (ptr=%p) gpa=%p, len=%d, flags=%x, next=%d\n", hdr_desc,
- (void *)(hdr_desc->addr_gpa), hdr_desc->length, hdr_desc->flags, hdr_desc->next);
-
if (guest_pa_to_host_va(virtio->virtio_dev->vm, hdr_desc->addr_gpa, &(hdr_addr)) == -1) {
PrintError("Could not translate receive buffer address\n");
return -1;
}
- //copy header to the header descriptor
memcpy((void *)hdr_addr, &hdr, sizeof(struct virtio_net_hdr));
-
- //Zheng 01/02/2010: zero payload
if (offset >= data_len) {
hdr_desc->flags &= ~VIRTIO_NEXT_FLAG;
}
- //copy data to the next descriptors
- //Zheng 01/02/2010: put data into the next descriptor, rather than 0!
for (buf_idx = hdr_desc->next; offset < data_len; buf_idx = q->desc[hdr_idx].next) {
- // for (buf_idx = 0; offset < data_len; buf_idx = q->desc[hdr_idx].next) {
struct vring_desc * buf_desc = &(q->desc[buf_idx]);
uint32_t len = 0;
- //Zheng 01/02/2010: commented this - we need to check
- // if there still is some data left
- //buf_desc->flags = VIRTIO_NEXT_FLAG;
-
-
- PrintError("JACK: copying packet to up desc (len = %d)\n", data_len - offset);
- v3_hexdump(buf + offset, data_len - offset, NULL, 0);
-
- len = copy_data_to_desc(virtio, buf_desc, buf + offset, data_len - offset);
-
+ len = copy_data_to_desc(virtio, buf_desc, buf + offset, data_len - offset);
offset += len;
-
- //Zheng 01/02/2010: check if there still is some data left
if (offset < data_len) {
buf_desc->flags = VIRTIO_NEXT_FLAG;
}
-
- buf_desc->length = len; // TODO: do we need this?
- PrintError("JACK: setting buffer descriptor length to %d)\n", buf_desc->length);
+ buf_desc->length = len;
}
-
q->used->ring[q->used->index % q->queue_size].id = q->avail->ring[q->cur_avail_idx % q->queue_size];
q->used->ring[q->used->index % q->queue_size].length = data_len + hdr_len; // This should be the total length of data sent to guest (header+pkt_data)
-
q->used->index++;
+
+ int last_idx = q->cur_avail_idx;
q->cur_avail_idx++;
+ if (q->cur_avail_idx < last_idx)
+ q->idx_overflow = false;
+ } else {
+ virtio->pkt_drop++;
+
+#ifdef VIRTIO_NIC_PROFILE
+ PrintError("Virtio NIC: %p, one pkt dropped receieved: %ld, dropped: %ld, sent: %ld curidx: %d, avaiIdx: %d\n",
+ virtio, virtio->pkt_recv, virtio->pkt_drop, virtio->pkt_sent, q->cur_avail_idx, q->avail->index);
+#endif
}
if (!(q->avail->flags & VIRTIO_NO_IRQ_FLAG)) {
virtio->virtio_cfg.pci_isr = 0x1;
}
+#ifdef VIRTIO_NIC_PROFILE
+ if ((virtio->pkt_recv % 10000) == 0){
+ PrintError("Virtio NIC: %p, receieved: %ld, dropped: %ld, sent: %ld\n",
+ virtio, virtio->pkt_recv, virtio->pkt_drop, virtio->pkt_sent);
+ }
+#endif
- PrintError("\n\n\n\n");
+
return offset;
}
+static int virtio_sendto_buf(struct virtio_net_state * net_state, uchar_t * buf, uint_t size) {
+ struct eth_pkt *pkt;
-// TODO:
-int virtio_send(struct guest_info * vm, char *dev_name, uchar_t * buf, uint_t size) {
- struct vm_device * virtio_dev = v3_find_dev(vm, dev_name);
-
- // TODO: how to get virtio net state from device??
- // this is not right now
- struct virtio_net_state * virtio_state = (struct virtio_net_state *)virtio_dev->private_data;
+ pkt = (struct eth_pkt *)V3_Malloc(sizeof(struct eth_pkt));
+ if(pkt == NULL){
+ PrintError("Virtio NIC: Memory allocate fails\n");
+ return -1;
+ }
+
+ pkt->size = size;
+ memcpy(pkt->data, buf, size);
+ v3_enqueue(net_state->inpkt_q, (addr_t)pkt);
- return send_pkt_to_guest(virtio_state, buf, size, 1, NULL);
-}
+ PrintDebug("Virtio NIC: __virtio_sendto_buf: transmitting packet: (size:%d)\n", (int)pkt->size);
+ return pkt->size;
+}
-static int __virtio_dev_send(uchar_t * buf, uint32_t size, void *private_data) {
+int virtio_dev_send(uchar_t * buf, uint32_t size, void *private_data) {
struct virtio_net_state *virtio_state = (struct virtio_net_state *)private_data;
- return send_pkt_to_guest(virtio_state, buf, size, 1, NULL);
+ return virtio_sendto_buf(virtio_state, buf, size);
}
static int get_desc_count(struct virtio_queue * q, int index) {
return cnt;
}
-
static int handle_ctrl(struct virtio_net_state * dev) {
return 0;
}
-//get packet from guest
static int handle_pkt_tx(struct virtio_net_state * virtio_state)
{
- //struct virtio_net_state *virtio = (struct virtio_net_state *)dev->private_data;
struct virtio_queue * q = &(virtio_state->tx_vq);
-
- PrintDebug("VIRTIO NIC pkt_tx: cur_index=%d (mod=%d), avail_index=%d\n",
- q->cur_avail_idx, q->cur_avail_idx % q->queue_size, q->avail->index);
-
struct virtio_net_hdr * hdr = NULL;
- while (q->cur_avail_idx < q->avail->index) {
+ if (q->avail->index < q->last_avail_idx)
+ q->idx_overflow = true;
+ q->last_avail_idx = q->avail->index;
+
+ while (q->cur_avail_idx < q->avail->index ||
+ (q->idx_overflow && q->cur_avail_idx < (q->avail->index + 65536))) {
struct vring_desc * hdr_desc = NULL;
addr_t hdr_addr = 0;
uint16_t desc_idx = q->avail->ring[q->cur_avail_idx % q->queue_size];
uint32_t req_len = 0;
int i = 0;
- PrintDebug("Descriptor Count=%d, index=%d\n", desc_cnt, q->cur_avail_idx % q->queue_size);
-
hdr_desc = &(q->desc[desc_idx]);
-
- PrintDebug("Header Descriptor (ptr=%p) gpa=%p, len=%d, flags=%x, next=%d\n", hdr_desc,
- (void *)(hdr_desc->addr_gpa), hdr_desc->length, hdr_desc->flags, hdr_desc->next);
-
if (guest_pa_to_host_va(virtio_state->virtio_dev->vm, hdr_desc->addr_gpa, &(hdr_addr)) == -1) {
PrintError("Could not translate block header address\n");
return -1;
}
- //memcpy(&hdr, (void *)hdr_addr, sizeof(struct virtio_net_hdr));
hdr = (struct virtio_net_hdr*)hdr_addr;
-
- PrintDebug("NIC Op Hdr (ptr=%p) header len =%x\n", (void *)hdr_addr, (int)hdr->hdr_len);
-
desc_idx = hdr_desc->next;
for (i = 0; i < desc_cnt - 1; i++) {
struct vring_desc * buf_desc = &(q->desc[desc_idx]);
-
- PrintDebug("Buffer Descriptor (ptr=%p) gpa=%p, len=%d, flags=%x, next=%d\n", buf_desc,
- (void *)(buf_desc->addr_gpa), buf_desc->length, buf_desc->flags, buf_desc->next);
-
- if (pkt_write(virtio_state, buf_desc) == -1) {
+ if (pkt_tx(virtio_state, buf_desc) == -1) {
PrintError("Error handling nic operation\n");
return -1;
}
req_len += buf_desc->length;
desc_idx = buf_desc->next;
}
+ virtio_state->pkt_sent ++;
q->used->ring[q->used->index % q->queue_size].id = q->avail->ring[q->cur_avail_idx % q->queue_size];
q->used->ring[q->used->index % q->queue_size].length = req_len; // What do we set this to????
-
q->used->index++;
- q->cur_avail_idx++;
+
+ int last_idx = q->cur_avail_idx;
+ q->cur_avail_idx ++;
+ if (q->cur_avail_idx < last_idx)
+ q->idx_overflow = false;
}
if (!(q->avail->flags & VIRTIO_NO_IRQ_FLAG)) {
- PrintDebug("Raising IRQ %d\n", virtio_state->pci_dev->config_header.intr_line);
v3_pci_raise_irq(virtio_state->virtio_dev->pci_bus, 0, virtio_state->pci_dev);
virtio_state->virtio_cfg.pci_isr = 0x1;
}
+#ifdef VIRTIO_NIC_PROFILE
+ if(virtio_state->pkt_sent % 10000 == 0)
+ PrintError("Virtio NIC: %p, pkt_sent: %ld\n", virtio_state, virtio_state->pkt_sent);
+#endif
+
return 0;
}
-
static int virtio_setup_queue(struct virtio_net_state * virtio_state, struct virtio_queue * queue, addr_t pfn, addr_t page_addr) {
queue->pfn = pfn;
// round up to next page boundary.
queue->ring_used_addr = (queue->ring_used_addr + 0xfff) & ~0xfff;
-
if (guest_pa_to_host_va(virtio_state->virtio_dev->vm, queue->ring_desc_addr, (addr_t *)&(queue->desc)) == -1) {
PrintError("Could not translate ring descriptor address\n");
return -1;
}
-
if (guest_pa_to_host_va(virtio_state->virtio_dev->vm, queue->ring_avail_addr, (addr_t *)&(queue->avail)) == -1) {
PrintError("Could not translate ring available address\n");
return -1;
}
-
if (guest_pa_to_host_va(virtio_state->virtio_dev->vm, queue->ring_used_addr, (addr_t *)&(queue->used)) == -1) {
PrintError("Could not translate ring used address\n");
return -1;
return 0;
}
-
-
-static int virtio_io_write(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 vm_device * dev = (struct vm_device *)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 (port_idx) {
case GUEST_FEATURES_PORT:
if (length != 4) {
PrintError("Illegal write length for guest features\n");
return -1;
- }
-
+ }
virtio->virtio_cfg.guest_features = *(uint32_t *)src;
PrintDebug("Setting Guest Features to %x\n", virtio->virtio_cfg.guest_features);
-
break;
+
case VRING_PG_NUM_PORT:
-
if (length != 4) {
PrintError("Illegal write length for page frame number\n");
return -1;
}
-
addr_t pfn = *(uint32_t *)src;
addr_t page_addr = (pfn << VIRTIO_PAGE_SHIFT);
uint16_t queue_idx = virtio->virtio_cfg.vring_queue_selector;
-
switch (queue_idx) {
case 0:
virtio_setup_queue(virtio, &virtio->rx_vq, pfn, page_addr);
break;
case 2:
virtio_setup_queue(virtio, &virtio->ctrl_vq, pfn, page_addr);
- break;
-
+ break;
default:
break;
}
-
break;
+
case VRING_Q_SEL_PORT:
virtio->virtio_cfg.vring_queue_selector = *(uint16_t *)src;
-
if (virtio->virtio_cfg.vring_queue_selector > 2) {
PrintError("Virtio NIC device only uses 3 queue, selected %d\n",
virtio->virtio_cfg.vring_queue_selector);
return -1;
}
-
break;
+
case VRING_Q_NOTIFY_PORT:
{
- uint16_t queue_idx = *(uint16_t *)src;
-
- PrintDebug("Handling Kick\n");
-
+ uint16_t queue_idx = *(uint16_t *)src;
if (queue_idx == 0){
- PrintError("receive queue notification\n");
+ PrintDebug("receive queue notification 0, packet get by Guest\n");
} else if (queue_idx == 1){
if (handle_pkt_tx(virtio) == -1) {
PrintError("Could not handle NIC Notification\n");
} else {
PrintError("Virtio NIC device only uses 3 queue, selected %d\n",
queue_idx);
- }
-
+ }
break;
}
+
case VIRTIO_STATUS_PORT:
virtio->virtio_cfg.status = *(uint8_t *)src;
-
if (virtio->virtio_cfg.status == 0) {
PrintDebug("Resetting device\n");
- virtio_reset(virtio);
+ virtio_init_state(virtio);
}
-
break;
case VIRTIO_ISR_PORT:
return length;
}
-
-static int virtio_io_read(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 vm_device * dev = (struct vm_device *)private_data;
struct virtio_net_state * virtio = (struct virtio_net_state *)private_data;
int port_idx = port % virtio->io_range_size;
uint16_t queue_idx = virtio->virtio_cfg.vring_queue_selector;
PrintError("Illegal read length for host features\n");
return -1;
}
-
*(uint32_t *)dst = virtio->virtio_cfg.host_features;
-
- PrintDebug("value=0x%x\n", *(uint32_t *)dst);
-
break;
- case VRING_PG_NUM_PORT:
+ case VRING_PG_NUM_PORT:
if (length != 4) {
PrintError("Illegal read length for page frame number\n");
return -1;
}
-
switch (queue_idx) {
case 0:
*(uint32_t *)dst = virtio->rx_vq.pfn;
default:
break;
}
-
- PrintDebug(", value=0x%x\n", *(uint32_t *)dst);
-
break;
- case VRING_SIZE_PORT:
+ case VRING_SIZE_PORT:
if (length != 2) {
PrintError("Illegal read length for vring size\n");
return -1;
}
-
switch (queue_idx) {
case 0:
*(uint16_t *)dst = virtio->rx_vq.queue_size;
default:
break;
}
-
PrintDebug("queue index: %d, value=0x%x\n", (int)queue_idx, *(uint16_t *)dst);
-
break;
- case VIRTIO_STATUS_PORT:
+ case VIRTIO_STATUS_PORT:
if (length != 1) {
PrintError("Illegal read length for status\n");
return -1;
}
-
*(uint8_t *)dst = virtio->virtio_cfg.status;
-
- PrintDebug(", value=0x%x\n", *(uint8_t *)dst);
break;
-
+
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);
-
- PrintDebug(", value=0x%x\n", *(uint8_t *)dst);
-
break;
default:
.stop = NULL,
};
-
static int register_dev(struct virtio_dev_state * virtio, struct virtio_net_state * net_state)
{
struct pci_device * pci_dev = NULL;
// 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;
net_state->io_range_size <<= 1;
net_state->io_range_size >>= 1;
}
-
for (i = 0; i < 6; i++) {
bars[i].type = PCI_BAR_NONE;
}
bars[0].type = PCI_BAR_IO;
bars[0].default_base_port = -1;
bars[0].num_ports = net_state->io_range_size;
-
bars[0].io_read = virtio_io_read;
bars[0].io_write = virtio_io_write;
bars[0].private_data = net_state;
pci_dev->config_header.device_id = VIRTIO_NET_DEV_ID;
pci_dev->config_header.class = PCI_CLASS_NETWORK;
- pci_dev->config_header.subclass = PCI_NET_SUBCLASS_OTHER;
-
- pci_dev->config_header.subsystem_id = VIRTIO_NET_SUBDEVICE_ID;;
-
+ pci_dev->config_header.subclass = PCI_NET_SUBCLASS_OTHER;
+ pci_dev->config_header.subsystem_id = VIRTIO_NET_SUBDEVICE_ID;
pci_dev->config_header.intr_pin = 1;
-
pci_dev->config_header.max_latency = 1; // ?? (qemu does it...)
-
- net_state->pci_dev = pci_dev;
- //net_state->pci_bus = pci_bus;
-
+ net_state->pci_dev = pci_dev;
net_state->virtio_cfg.host_features = 0; //no features support now
-
net_state->rx_vq.queue_size = QUEUE_SIZE;
net_state->tx_vq.queue_size = QUEUE_SIZE;
net_state->ctrl_vq.queue_size = CTRL_QUEUE_SIZE;
-
net_state->virtio_dev = virtio;
-
- virtio_reset(net_state);
+
+ virtio_init_state(net_state);
return 0;
}
-
-
-static int connect_fn(struct guest_info * info,
+static int connect_fn(struct v3_vm_info * info,
void * frontend_data,
struct v3_dev_net_ops * ops,
v3_cfg_tree_t * cfg,
struct virtio_net_state * net_state = (struct virtio_net_state *)V3_Malloc(sizeof(struct virtio_net_state));
memset(net_state, 0, sizeof(struct virtio_net_state));
-
register_dev(virtio, net_state);
net_state->net_ops = ops;
return 0;
}
-
-static int virtio_init(struct guest_info * vm, v3_cfg_tree_t * cfg) {
+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");
INIT_LIST_HEAD(&(virtio_state->dev_list));
virtio_state->pci_bus = pci_bus;
- virtio_state->vm = vm;
+ //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 register %s as net frontend\n", name);
return -1;
}
-
-
- //for temporary testing, add a backend
- #if 1
-
- struct virtio_net_state * net_state = (struct virtio_net_state *)V3_Malloc(sizeof(struct virtio_net_state));
- memset(net_state, 0, sizeof(struct virtio_net_state));
-
- net_state->net_ops = (struct v3_dev_net_ops *)V3_Malloc(sizeof(struct v3_dev_net_ops));
-
- net_state->net_ops->send = &send;
- net_state->net_ops->receive = &receive;
-
- register_dev(virtio_state, net_state);
- PrintDebug("Virtio NIC After register Device %s: queue size: %d, %d\n", dev->name,
- net_state->rx_vq.queue_size, net_state->tx_vq.queue_size);
-
- temp_net_states[net_idx ++] = net_state;
-
- PrintDebug("Net_states: 0: %p, 1: %p, 2: %p\n", temp_net_states[0], temp_net_states[1], temp_net_states[2]);
-
- #endif
-
return 0;
}
* http://www.v3vee.org
*
* Copyright (c) 2009, Lei Xia <lxia@northwestern.edu>
- * Copyright (c) 2009, Yuan Tang <ytang@northwestern.edu>
- * Copyright (c) 2009, Jack Lange <jarusl@cs.northwestern.edu>
- * Copyright (c) 2009, Peter Dinda <pdinda@northwestern.edu>
+ * Copyright (c) 2009, Yuan Tang <ytang@northwestern.edu>
* Copyright (c) 2009, The V3VEE Project <http://www.v3vee.org>
* All rights reserved.
*
* Author: Lei Xia <lxia@northwestern.edu>
* Yuan Tang <ytang@northwestern.edu>
- * Jack Lange <jarusl@cs.northwestern.edu>
- * Peter Dinda <pdinda@northwestern.edu
*
* This is free software. You are permitted to use,
* redistribute, and modify it as specified in the file "V3VEE_LICENSE".
#include <palacios/vmm_vnet.h>
#include <palacios/vmm_hypercall.h>
#include <palacios/vm_guest_mem.h>
+#include <palacios/vmm_lock.h>
#ifndef CONFIG_DEBUG_VNET
#undef PrintDebug
#endif
+#define ETHERNET_HEADER_LEN 14
+#define ETHERNET_DATA_MIN 46
+#define ETHERNET_DATA_MAX 1500
+#define ETHERNET_PACKET_LEN (ETHERNET_HEADER_LEN + ETHERNET_DATA_MAX)
+
+
+typedef enum {TCP_TYPE, UDP_TYPE, NONE_TYPE} prot_type_t;
+
+#define VNET_INITAB_HCALL 0xca00
+
+struct eth_header {
+ uchar_t dest[6];
+ uchar_t src[6];
+ uint16_t type; // indicates layer 3 protocol type
+}__attribute__((packed));
+
+struct ip_header {
+ uint8_t version: 4;
+ uint8_t hdr_len: 4;
+ uchar_t tos;
+ uint16_t total_len;
+ uint16_t id;
+ uint8_t flags: 3;
+ uint16_t offset: 13;
+ uchar_t ttl;
+ uchar_t proto;
+ uint16_t cksum;
+ uint32_t src_addr;
+ uint32_t dst_addr;
+}__attribute__((packed));
+
+struct udp_header {
+ uint16_t src_port;
+ uint16_t dst_port;
+ uint16_t len;
+ uint16_t csum;//set to zero, disable the xsum
+}__attribute__((packed));
+
+struct udp_link_header {
+ struct eth_header eth_hdr;
+ struct ip_header ip_hdr;
+ struct udp_header udp_hdr;
+}__attribute__((packed));
+
+
struct ethernet_pkt {
- uint32_t size; //size of data
+ uint32_t size; //size of data field
uint16_t type;
- struct udp_link_header ext_hdr; //possible externel header to applied to data before sent
+ uint8_t use_header;
+ struct udp_link_header ext_hdr;
char data[ETHERNET_PACKET_LEN];
+}__attribute__((packed));
+
+
+#define DEVICE_NAME_LEN 20
+struct vnet_if_device {
+ char name[DEVICE_NAME_LEN];
+ uchar_t mac_addr[6];
+ struct v3_vm_info *vm;
+
+ int (*input)(struct v3_vm_info *vm, uchar_t *data, uint32_t len, void *private_data);
+
+ void *private_data;
+}__attribute__((packed));
+
+struct vnet_if_link {
+ prot_type_t pro_type; //transport layer protocal type of this link
+ unsigned long dest_ip;
+ uint16_t dest_port;
+
+ struct udp_link_header vnet_header; //header applied to the packet in/out from this link
+
+ int (*input)(uchar_t *data, uint32_t len, void *private_data);
+
+ void *private_data;
+}__attribute__((packed));
+
+
+struct link_entry {
+ link_type_t type;
+
+ union {
+ struct vnet_if_device *dst_dev;
+ struct vnet_if_link *dst_link;
+ } __attribute__((packed));
+
+ int use;
+}__attribute__((packed));
+
+//routing table entry
+struct routing_entry {
+ char src_mac[6];
+ char dest_mac[6];
+
+ mac_type_t src_mac_qual;
+ mac_type_t dest_mac_qual;
+
+ int link_idx; //link[dest] is the link to be used to send pkt
+ link_type_t link_type; //EDGE|INTERFACE|ANY
+
+ int src_link_idx;
+ link_type_t src_type; //EDGE|INTERFACE|ANY
};
// 14 (ethernet frame) + 20 bytes
struct in_pkt_header {
- char ethernetdest[6];
- char ethernetsrc[6];
- unsigned char ethernettype[2]; //layer 3 protocol type
+ uchar_t ethernetdest[6];
+ uchar_t ethernetsrc[6];
+ uchar_t ethernettype[2]; //layer 3 protocol type
char ip[20];
-};
+}__attribute__((packed));
-#define VNET_INITAB_HCALL 0xca00 // inital hypercall id
#define MAX_LINKS 10
#define MAX_ROUTES 10
#define HASH_KEY_LEN 16
#define MIN_CACHE_SIZE 100
-static const uint_t hash_key_size = 16;
+#define HASH_KEY_SIZE 16
struct link_table {
struct link_entry * links[MAX_LINKS];
uint16_t size;
-};
+ v3_lock_t lock;
+}__attribute__((packed));
struct routing_table {
struct routing_entry * routes[MAX_ROUTES];
uint16_t size;
-};
-
-static struct link_table g_links;
-static struct routing_table g_routes;
-static struct gen_queue * g_inpkt_q;
+ v3_lock_t lock;
+}__attribute__((packed));
-/* Hash key format:
- * 0-5: src_eth_addr
- * 6-11: dest_eth_addr
- * 12: src type
- * 13-16: src index
- */
typedef char * route_hashkey_t;
-// This is the hash value, Format: 0: num_matched_routes, 1...n: matches[] -- TY
struct route_cache_entry {
int num_matched_routes;
int * matches;
};
-// the route cache
-static struct hashtable * g_route_cache;
-
-
-static void print_packet(uchar_t *pkt, int size) {
- PrintDebug("Vnet: print_data_packet: size: %d\n", size);
- v3_hexdump(pkt, size, NULL, 0);
-}
-
-#if 0
-static void print_packet_addr(char * pkt) {
- PrintDebug("Vnet: print_packet_destination_addr: ");
- v3_hexdump(pkt + 8, 6, NULL, 0);
-
- PrintDebug("Vnet: print_packet_source_addr: ");
- v3_hexdump(pkt + 14, 6, NULL, 0);
-}
+struct vnet_state_t {
+ struct link_table g_links;
+ struct routing_table g_routes;
+ struct gen_queue * g_inpkt_q;
+ struct hashtable * g_route_cache;
+ v3_lock_t cache_lock;
+};
-static void print_device_addr(char * ethaddr) {
- PrintDebug("Vnet: print_device_addr: ");
- v3_hexdump(ethaddr, 6, NULL, 0);
-}
-#endif
+static struct vnet_state_t g_vnet_state;//global state for vnet
static uint16_t ip_xsum(struct ip_header *ip_hdr, int hdr_len){
long sum = 0;
return (uint16_t)~sum;
}
-static inline void ethernet_packet_init(struct ethernet_pkt *pt, uchar_t *data, const size_t size) {
+static void ethernet_packet_init(struct ethernet_pkt *pt,
+ uchar_t *data,
+ const size_t size) {
pt->size = size;
+ pt->use_header = 0;
+ memset(&pt->ext_hdr, 0, sizeof(struct udp_link_header));
memcpy(pt->data, data, size);
}
-static uint_t hash_from_key_fn(addr_t hashkey) {
- uint8_t * key = (uint8_t *)hashkey;
- return v3_hash_buffer(key, HASH_KEY_LEN);
+static inline uint_t hash_from_key_fn(addr_t hashkey) {
+ return v3_hash_buffer((uint8_t *)hashkey, HASH_KEY_LEN);
}
-static int hash_key_equal(addr_t key1, addr_t key2) {
- uint8_t * buf1 = (uint8_t *)key1;
- uint8_t * buf2 = (uint8_t *)key2;
- return (memcmp(buf1, buf2, HASH_KEY_LEN) == 0);
+static inline int hash_key_equal(addr_t key1, addr_t key2) {
+ return (memcmp((uint8_t *)key1, (uint8_t *)key2, HASH_KEY_LEN) == 0);
}
-static int init_route_cache() {
- g_route_cache = v3_create_htable(MIN_CACHE_SIZE, &hash_from_key_fn, &hash_key_equal);
+static int init_route_cache(struct vnet_state_t *vnet_state) {
+ vnet_state->g_route_cache = v3_create_htable(MIN_CACHE_SIZE,
+ &hash_from_key_fn,
+ &hash_key_equal);
- if (g_route_cache == NULL) {
- PrintError("Vnet: Route Cache Initiate Failurely\n");
+ if (vnet_state->g_route_cache == NULL) {
+ PrintError("Vnet: Route Cache Init Fails\n");
return -1;
}
}
static void make_hash_key(route_hashkey_t hashkey,
- char src_addr[6],
- char dest_addr[6],
- char src_type,
- int src_index) {
+ char src_addr[6],
+ char dest_addr[6],
+ char src_type,
+ int src_index) {
int j;
for (j = 0; j < 6; j++) {
*(int *)(hashkey + 12) = src_index;
}
-static int add_route_to_cache(route_hashkey_t hashkey, int num_matched_r, int * matches) {
+static int add_route_to_cache(route_hashkey_t hashkey,
+ int num_matched_r,
+ int * matches) {
struct route_cache_entry * new_entry = NULL;
+ struct vnet_state_t *vnet_state = &g_vnet_state;
int i;
new_entry = (struct route_cache_entry *)V3_Malloc(sizeof(struct route_cache_entry));
}
new_entry->num_matched_routes = num_matched_r;
-
new_entry->matches = (int *)V3_Malloc(num_matched_r * sizeof(int));
if (new_entry->matches == NULL) {
new_entry->matches[i] = matches[i];
}
- // here, when v3_htable_insert return 0, it means insert fails
- if (v3_htable_insert(g_route_cache, (addr_t)hashkey, (addr_t)new_entry) == 0) {
- PrintError("Vnet: Insert new route entry to cache failed\n");
+ if (v3_htable_insert(vnet_state->g_route_cache, (addr_t)hashkey, (addr_t)new_entry) == 0) {
+ PrintError("Vnet: Failed to insert new route entry to the cache\n");
V3_Free(new_entry->matches);
V3_Free(new_entry);
}
}
static int clear_hash_cache() {
- v3_free_htable(g_route_cache, 1, 1);
-
- g_route_cache = v3_create_htable(MIN_CACHE_SIZE, hash_from_key_fn, hash_key_equal);
+ struct vnet_state_t *vnet_state = &g_vnet_state;
+
+ v3_free_htable(vnet_state->g_route_cache, 1, 1);
+ vnet_state->g_route_cache = v3_create_htable(MIN_CACHE_SIZE,
+ hash_from_key_fn,
+ hash_key_equal);
- if (g_route_cache == NULL) {
+ if (vnet_state->g_route_cache == NULL) {
PrintError("Vnet: Route Cache Create Failurely\n");
return -1;
}
struct route_cache_entry * found = NULL;
int n_matches = -1;
int i = 0;
+ struct vnet_state_t *vnet_state = &g_vnet_state;
- found = (struct route_cache_entry *)v3_htable_search(g_route_cache, (addr_t)hashkey);
+ found = (struct route_cache_entry *)v3_htable_search(vnet_state->g_route_cache,
+ (addr_t)hashkey);
if (found != NULL) {
n_matches = found->num_matched_routes;
return n_matches;
}
+
#ifdef CONFIG_DEBUG_VNET
+
+static void print_packet(uchar_t *pkt, int size) {
+ PrintDebug("Vnet: data_packet: size: %d\n", size);
+ v3_hexdump(pkt, size, NULL, 0);
+}
+
static inline uint8_t hex_nybble_to_nybble(const uint8_t hexnybble) {
uint8_t x = toupper(hexnybble);
}
static inline void mac_to_string(char mac[6], char * buf) {
- snprintf(buf, 20, "%x:%x:%x:%x:%x:%x",
+ snprintf(buf, 20, "%02x:%02x:%02x:%02x:%02x:%02x",
mac[0], mac[1], mac[2],
mac[3], mac[4], mac[5]);
}
+
+
+static void print_route(struct routing_entry *route){
+ char dest_str[18];
+ char src_str[18];
+
+ mac_to_string(route->src_mac, src_str);
+ mac_to_string(route->dest_mac, dest_str);
+
+ PrintDebug("SRC(%s), DEST(%s), src_mac_qual(%d), dst_mac_qual(%d)\n",
+ src_str,
+ dest_str,
+ route->src_mac_qual,
+ route->dest_mac_qual);
+ PrintDebug("Src_Link(%d), src_type(%d), dst_link(%d), dst_type(%d)\n\n",
+ route->src_link_idx,
+ route->src_type,
+ route->link_idx,
+ route->link_type);
+}
+
+
+static void dump_routes(struct routing_entry **route_tables) {
+ int i;
+
+ PrintDebug("\nVnet: route table dump start =====\n");
+
+ for(i = 0; i < MAX_ROUTES; i++) {
+ if (route_tables[i] != NULL){
+ print_route(route_tables[i]);
+ }
+ }
+
+ PrintDebug("\nVnet: route table dump end =====\n");
+}
+
+static void dump_dom0_routes(struct routing_entry routes[], int size) {
+ int i;
+
+ PrintDebug("\nVnet: route table from dom0 guest =====\n");
+
+ for(i = 0; i <size; i++) {
+ print_route(&routes[i]);
+ }
+
+ PrintDebug("\nVnet: route table dom0 guest end =====\n");
+}
+
+static void dump_dom0_links(struct vnet_if_link links[], int size) {
+ struct vnet_if_link *link = NULL;
+ int i;
+
+ PrintDebug("\nVnet: link table from dom0 guest =====\n");
+
+ for(i = 0; i <size; i++) {
+ link = &links[i];
+ PrintDebug("link: %d\n", i);
+ PrintDebug("dest_ip(%ld), dst_port(%d), prot_type(%d)\n",
+ link->dest_ip,
+ link->dest_port,
+ link->pro_type);
+ PrintDebug("vnet_header:\n");
+ v3_hexdump(&link->vnet_header, sizeof(struct udp_link_header), NULL, 0);
+ }
+
+ PrintDebug("\nVnet: link table dom0 guest end =====\n");
+}
+
#endif
static int __add_link_entry(struct link_entry * link) {
int idx;
-
+ struct vnet_state_t *vnet_state = &g_vnet_state;
+
+ v3_lock(vnet_state->g_links.lock);
for (idx = 0; idx < MAX_LINKS; idx++) {
- if (g_links.links[idx] == NULL) {
- g_links.links[idx] = link;
- g_links.size++;
-
- return idx;
+ if (vnet_state->g_links.links[idx] == NULL) {
+ vnet_state->g_links.links[idx] = link;
+ vnet_state->g_links.size++;
+ break;
}
}
+ v3_unlock(vnet_state->g_links.lock);
- PrintError("No available Link entry\n");
- return -1;
+ if (idx == MAX_LINKS) {
+ PrintDebug("VNET: No available Link entry for new link\n");
+ return -1;
+ }
+
+ return idx;
}
static int __add_route_entry(struct routing_entry * route) {
int idx;
-
+ struct vnet_state_t *vnet_state = &g_vnet_state;
+
+ v3_lock(vnet_state->g_routes.lock);
for (idx = 0; idx < MAX_ROUTES; idx++) {
- if (g_routes.routes[idx] == NULL) {
- g_routes.routes[idx] = route;
- g_routes.size++;
-
- return idx;
+ if (vnet_state->g_routes.routes[idx] == NULL) {
+ vnet_state->g_routes.routes[idx] = route;
+ vnet_state->g_routes.size++;
+ break;
}
}
+ v3_unlock(vnet_state->g_routes.lock);
- PrintError("No available route entry\n");
- return -1;
-}
+ if(idx == MAX_LINKS){
+ PrintDebug("VNET: No available route entry for new route\n");
+ return -1;
+ }
+#ifdef CONFIG_DEBUG_VNET
+ dump_routes(vnet_state->g_routes.routes);
+#endif
+
+ return idx;
+}
-static int vnet_add_route_entry(char src_mac[6],
- char dest_mac[6],
- int src_mac_qual,
- int dest_mac_qual,
- int link_idx,
- link_type_t link_type,
- int src,
- link_type_t src_type) {
+int v3_vnet_add_route(struct v3_vnet_route *route){
struct routing_entry * new_route = (struct routing_entry *)V3_Malloc(sizeof(struct routing_entry));
int idx = -1;
+ PrintDebug("Vnet: vnet_add_route_entry\n");
+
memset(new_route, 0, sizeof(struct routing_entry));
-
- if ((src_mac_qual != MAC_ANY) && (src_mac_qual != MAC_NONE)) {
- memcpy(new_route->src_mac, src_mac, 6);
+ if ((route->src_mac_qual != MAC_ANY)) {
+ memcpy(new_route->src_mac, route->src_mac, 6);
}
- if ((dest_mac_qual != MAC_ANY) && (dest_mac_qual != MAC_NONE)) {
- memcpy(new_route->dest_mac, dest_mac, 6);
+ if ((route->dest_mac_qual != MAC_ANY)) {
+ memcpy(new_route->dest_mac, route->dest_mac, 6);
}
- new_route->src_mac_qual = src_mac_qual;
- new_route->dest_mac_qual = dest_mac_qual;
- new_route->link_idx= link_idx;
- new_route->link_type = link_type;
- new_route->src_link_idx = src;
- new_route->src_type = src_type;
+ new_route->src_mac_qual = route->src_mac_qual;
+ new_route->dest_mac_qual = route->dest_mac_qual;
+ new_route->link_idx= route->link_idx;
+ new_route->link_type = route->link_type;
+ new_route->src_link_idx = route->src_link_idx;
+ new_route->src_type = route->src_type;
if ((idx = __add_route_entry(new_route)) == -1) {
PrintError("Could not add route entry\n");
}
clear_hash_cache();
-
- return idx;
-}
-static void * __delete_link_entry(int index) {
- struct link_entry * link = NULL;
- void * ret = NULL;
- link_type_t type;
-
- if ((index >= MAX_LINKS) || (g_links.links[index] == NULL)) {
- return NULL;
- }
-
- link = g_links.links[index];
- type = g_links.links[index]->type;
-
- if (type == LINK_INTERFACE) {
- ret = (void *)g_links.links[index]->dst_dev;
- } else if (type == LINK_EDGE) {
- ret = (void *)g_links.links[index]->dst_link;
- }
-
- g_links.links[index] = NULL;
- g_links.size--;
-
- V3_Free(link);
-
- return ret;
-}
-
-static int find_route_entry(char src_mac[6],
- char dest_mac[6],
- int src_mac_qual,
- int dest_mac_qual,
- int link_idx,
- link_type_t link_type,
- int src,
- link_type_t src_type) {
- int i;
- char temp_src_mac[6];
- char temp_dest_mac[6];
-
- if ((src_mac_qual != MAC_ANY) && (src_mac_qual != MAC_NONE)) {
- memcpy(temp_src_mac, src_mac, 6);
- } else {
- memset(temp_src_mac, 0, 6);
- }
-
- if ((dest_mac_qual != MAC_ANY) && (dest_mac_qual != MAC_NONE)) {
- memcpy(temp_dest_mac, dest_mac, 6);
- } else {
- memset(temp_dest_mac, 0, 6);
- }
-
- for (i = 0; i < MAX_ROUTES; i++) {
- if (g_routes.routes[i] != NULL) {
- if ((memcmp(temp_src_mac, g_routes.routes[i]->src_mac, 6) == 0) &&
- (memcmp(temp_dest_mac, g_routes.routes[i]->dest_mac, 6) == 0) &&
- (g_routes.routes[i]->src_mac_qual == src_mac_qual) &&
- (g_routes.routes[i]->dest_mac_qual == dest_mac_qual) &&
- ( (link_type == LINK_ANY) ||
- ((link_type == g_routes.routes[i]->link_type) && (g_routes.routes[i]->link_idx == link_idx))) &&
- ( (src_type == LINK_ANY) ||
- ((src_type == g_routes.routes[i]->src_type) && (g_routes.routes[i]->src_link_idx == src)))) {
- return i;
- }
- }
- }
-
- return -1;
-}
-
-static int __delete_route_entry(int index) {
- struct routing_entry * route;
-
- if ((index >= MAX_ROUTES) || (g_routes.routes[index] == NULL)) {
- PrintDebug("VNET: wrong index in delete route entry %d\n", index);
- return -1;
- }
-
- route = g_routes.routes[index];
- g_routes.routes[index] = NULL;
- g_routes.size--;
-
- V3_Free(route);
-
- clear_hash_cache();
-
- return 0;
-}
-
-static int vnet_delete_route_entry_by_addr(char src_mac[6],
- char dest_mac[6],
- int src_mac_qual,
- int dest_mac_qual,
- int link_idx,
- link_type_t type,
- int src,
- link_type_t src_type) {
- int index = find_route_entry(src_mac, dest_mac, src_mac_qual,
- dest_mac_qual, link_idx, type, src, src_type);
-
- if (index == -1) {
- PrintDebug("VNET: wrong in delete route entry %d\n", index);
- return -1;
- }
-
- return __delete_route_entry(index);
+ return idx;
}
static int match_route(uint8_t * src_mac,
uint8_t * dst_mac,
link_type_t src_type,
int src_index,
- int * matches) {
- int values[MAX_ROUTES];
+ int * matches) {
+ struct routing_entry *route = NULL;
+ struct vnet_state_t *vnet_state = &g_vnet_state;
int matched_routes[MAX_ROUTES];
-
int num_matches = 0;
int i;
- int max = 0;
- int no = 0;
- int exact_match = 0;
+
+#ifdef CONFIG_DEBUG_VNET
+ char dest_str[18];
+ char src_str[18];
+
+ mac_to_string(src_mac, src_str);
+ mac_to_string(dst_mac, dest_str);
+ PrintDebug("Vnet: match_route. pkt: SRC(%s), DEST(%s)\n", src_str, dest_str);
+#endif
for(i = 0; i < MAX_ROUTES; i++) {
- if (g_routes.routes[i] != NULL){
- if ( (g_routes.routes[i]->src_type != LINK_ANY) &&
- ( (g_routes.routes[i]->src_type != src_type) ||
- ( (g_routes.routes[i]->src_link_idx != src_index) &&
- (g_routes.routes[i]->src_link_idx != -1)))) {
- PrintDebug("Vnet: MatchRoute: Source route is on and does not match\n");
- continue;
- }
+ if (vnet_state->g_routes.routes[i] != NULL){
+ route = vnet_state->g_routes.routes[i];
+
+ if(src_type == LINK_ANY && src_index == -1) {
+ if ((route->dest_mac_qual == MAC_ANY) &&
+ (route->src_mac_qual == MAC_ANY)) {
+ matched_routes[num_matches] = i;
+ num_matches++;
+ }
- if ( (g_routes.routes[i]->dest_mac_qual == MAC_ANY) &&
- (g_routes.routes[i]->src_mac_qual == MAC_ANY)) {
+ if (memcmp((void *)&route->src_mac, (void *)src_mac, 6) == 0) {
+ if (route->src_mac_qual != MAC_NOT) {
+ if (route->dest_mac_qual == MAC_ANY) {
+ matched_routes[num_matches] = i;
+ num_matches++;
+ } else if (route->dest_mac_qual != MAC_NOT &&
+ memcmp((void *)&route->dest_mac, (void *)dst_mac, 6) == 0) {
+ matched_routes[num_matches] = i;
+ num_matches++;
+ }
+ }
+ }
- matched_routes[num_matches] = i;
- values[num_matches] = 3;
- num_matches++;
- }
-
- if (memcmp((void *)&g_routes.routes[i]->src_mac, (void *)src_mac, 6) == 0) {
- if (g_routes.routes[i]->src_mac_qual != MAC_NOT) {
- if (g_routes.routes[i]->dest_mac_qual == MAC_ANY) {
- matched_routes[num_matches] = i;
- values[num_matches] = 6;
-
- num_matches++;
- } else if (memcmp((void *)&g_routes.routes[i]->dest_mac, (void *)dst_mac, 6) == 0) {
- if (g_routes.routes[i]->dest_mac_qual != MAC_NOT) {
- matched_routes[num_matches] = i;
- values[num_matches] = 8;
- exact_match = 1;
- num_matches++;
- }
- }
- }
- }
-
- if (memcmp((void *)&g_routes.routes[i]->dest_mac, (void *)dst_mac, 6) == 0) {
- if (g_routes.routes[i]->dest_mac_qual != MAC_NOT) {
- if (g_routes.routes[i]->src_mac_qual == MAC_ANY) {
- matched_routes[num_matches] = i;
- values[num_matches] = 6;
-
- num_matches++;
- } else if (memcmp((void *)&g_routes.routes[i]->src_mac, (void *)src_mac, 6) == 0) {
- if (g_routes.routes[i]->src_mac_qual != MAC_NOT) {
- if (exact_match == 0) {
- matched_routes[num_matches] = i;
- values[num_matches] = 8;
- num_matches++;
- }
- }
- }
- }
- }
+ if (memcmp((void *)&route->dest_mac, (void *)dst_mac, 6) == 0) {
+ if (route->dest_mac_qual != MAC_NOT) {
+ if (route->src_mac_qual == MAC_ANY) {
+ matched_routes[num_matches] = i;
+ num_matches++;
+ } else if ((route->src_mac_qual != MAC_NOT) &&
+ (memcmp((void *)&route->src_mac, (void *)src_mac, 6) == 0)) {
+ matched_routes[num_matches] = i;
+ num_matches++;
+ }
+ }
+ }
+
+ if ((route->dest_mac_qual == MAC_NOT) &&
+ (memcmp((void *)&route->dest_mac, (void *)dst_mac, 6) != 0)) {
+ if (route->src_mac_qual == MAC_ANY) {
+ matched_routes[num_matches] = i;
+ num_matches++;
+ } else if ((route->src_mac_qual != MAC_NOT) &&
+ (memcmp((void *)&route->src_mac, (void *)src_mac, 6) == 0)) {
+ matched_routes[num_matches] = i;
+ num_matches++;
+ }
+ }
+
+ if ((route->src_mac_qual == MAC_NOT) &&
+ (memcmp((void *)&route->src_mac, (void *)src_mac, 6) != 0)) {
+ if (route->dest_mac_qual == MAC_ANY) {
+ matched_routes[num_matches] = i;
+ num_matches++;
+ } else if ((route->dest_mac_qual != MAC_NOT) &&
+ (memcmp((void *)&route->dest_mac, (void *)dst_mac, 6) == 0)) {
+ matched_routes[num_matches] = i;
+ num_matches++;
+ }
+ }
+ }//end if src_type == Link_any
+ }
+ }//end for
+
+ PrintDebug("Vnet: match_route: Matches=%d\n", num_matches);
- if ( (g_routes.routes[i]->dest_mac_qual == MAC_NOT) &&
- (memcmp((void *)&g_routes.routes[i]->dest_mac, (void *)dst_mac, 6) != 0)) {
- if (g_routes.routes[i]->src_mac_qual == MAC_ANY) {
- matched_routes[num_matches] = i;
- values[num_matches] = 5;
- num_matches++;
- } else if (memcmp((void *)&g_routes.routes[i]->src_mac, (void *)src_mac, 6) == 0) {
- if (g_routes.routes[i]->src_mac_qual != MAC_NOT) {
- matched_routes[num_matches] = i;
- values[num_matches] = 7;
- num_matches++;
- }
- }
- }
-
- if ( (g_routes.routes[i]->src_mac_qual == MAC_NOT) &&
- (memcmp((void *)&g_routes.routes[i]->src_mac, (void *)src_mac, 6) != 0)) {
- if (g_routes.routes[i]->dest_mac_qual == MAC_ANY) {
- matched_routes[num_matches] = i;
- values[num_matches] = 5;
- num_matches++;
- } else if (memcmp((void *)&g_routes.routes[i]->dest_mac, (void *)dst_mac, 6) == 0) {
- if (g_routes.routes[i]->dest_mac_qual != MAC_NOT) {
- matched_routes[num_matches] = i;
- values[num_matches] = 7;
- num_matches++;
- }
- }
- }
- }
- } // end for
-
- for (i = 0; i < MAX_ROUTES; i++) {
- if ( (memcmp((void *)&g_routes.routes[i]->src_mac, (void *)src_mac, 6) == 0) &&
- (g_routes.routes[i]->dest_mac_qual == MAC_NONE) &&
- ( (g_routes.routes[i]->src_type == LINK_ANY) ||
- ( (g_routes.routes[i]->src_type == src_type) &&
- ( (g_routes.routes[i]->src_link_idx == src_index) ||
- (g_routes.routes[i]->src_link_idx == -1))))) {
- matched_routes[num_matches] = i;
- values[num_matches] = 4;
- PrintDebug("Vnet: MatchRoute: We matched a default route (%d)\n", i);
- num_matches++;
- }
- }
-
- //If many rules have been matched, we choose one which has the highest value rating
- if (num_matches == 0) {
- return 0;
- }
-
for (i = 0; i < num_matches; i++) {
- if (values[i] > max) {
- no = 0;
- max = values[i];
- matches[no] = matched_routes[i];
- no++;
- } else if (values[i] == max) {
- matches[no] = matched_routes[i];
- no++;
- }
+ matches[i] = matched_routes[i];
}
- return no;
+ return num_matches;
}
static int handle_one_pkt(struct ethernet_pkt *pkt) {
int src_link_index = -1; //the value of src_link_index of udp always is 0
- int i;
char src_mac[6];
char dst_mac[6];
-
int matches[MAX_ROUTES];
int num_matched_routes = 0;
-
struct in_pkt_header header;
+ char hash_key[HASH_KEY_SIZE];
+ struct vnet_state_t *vnet_state = &g_vnet_state;
+ int i;
- char hash_key[hash_key_size];
-
// get the ethernet and ip headers from the packet
memcpy((void *)&header, (void *)pkt->data, sizeof(header));
memcpy(src_mac, header.ethernetsrc, 6);
#ifdef CONFIG_DEBUG_VNET
char dest_str[18];
char src_str[18];
-
+
mac_to_string(src_mac, src_str);
mac_to_string(dst_mac, dest_str);
-
PrintDebug("Vnet: HandleDataOverLink. SRC(%s), DEST(%s)\n", src_str, dest_str);
#endif
- // link_edge -> pt->type???
make_hash_key(hash_key, src_mac, dst_mac, LINK_EDGE, src_link_index);
-
num_matched_routes = look_into_cache((route_hashkey_t)hash_key, matches);
if (num_matched_routes == -1) {
- // no match in the cache
- num_matched_routes = match_route(src_mac, dst_mac, LINK_ANY, src_link_index, matches);
-
+ num_matched_routes = match_route(src_mac, dst_mac, LINK_ANY, src_link_index, matches);
if (num_matched_routes > 0) {
add_route_to_cache(hash_key, num_matched_routes,matches);
}
}
PrintDebug("Vnet: HandleDataOverLink: Matches=%d\n", num_matched_routes);
+
+ if (num_matched_routes == 0) {
+ return -1;
+ }
for (i = 0; i < num_matched_routes; i++) {//send packet to all destinations
int route_index = -1;
struct link_entry * link = NULL;
route_index = matches[i];
-
- PrintDebug("Vnet: HandleDataOverLink: Forward packet from link according to Route entry %d\n", route_index);
-
- link_index = g_routes.routes[route_index]->link_idx;
+ link_index = vnet_state->g_routes.routes[route_index]->link_idx;
- if ((link_index < 0) ||
- (link_index > MAX_LINKS) ||
- (g_links.links[link_index] == NULL)) {
+ if ((link_index < 0) || (link_index > MAX_LINKS) ||
+ (vnet_state->g_links.links[link_index] == NULL)) {
continue;
}
- link = g_links.links[link_index];
+ link = vnet_state->g_links.links[link_index];
pkt_len = pkt->size;
- if (g_routes.routes[route_index]->link_type == LINK_EDGE) {
+ if (link->type == LINK_EDGE) {
//apply the header in the beginning of the packet to be sent
if (link->dst_link->pro_type == UDP_TYPE) {
pkt_len += hdr_size;
if ((link->dst_link->input((uchar_t *)&pkt->ext_hdr, pkt_len, link->dst_link->private_data)) != pkt_len) {
- PrintDebug("VNET: Packet not sent properly\n");
- return -1;
+ PrintDebug("VNET: Packet not sent properly to link: %d\n", link_index);
+ continue;
}
}else {
PrintDebug("VNET: Link protocol type not support\n");
- return -1;
+ continue;
}
- } else if (g_routes.routes[route_index]->link_type == LINK_INTERFACE) {
- if ((link->dst_dev->input(pkt->data, pkt_len, link->dst_dev->private_data)) != pkt_len) {
- PrintDebug("VNET: Packet not sent properly\n");
- return -1;
+ } else if (link->type == LINK_INTERFACE) {
+ if ((link->dst_dev->input(link->dst_dev->vm, pkt->data, pkt_len, link->dst_dev->private_data)) != pkt_len) {
+ PrintDebug("VNET: Packet not sent properly to link: %d\n", link_index);
+ continue;
}
} else {
- PrintDebug("Vnet: Wrong Edge type\n");
- return -1;
+ PrintDebug("Vnet: Wrong Edge type of link: %d\n", link_index);
+ continue;
}
+
+ PrintDebug("Vnet: HandleDataOverLink: Forward packet according to Route entry %d to link %d\n", route_index, link_index);
}
return 0;
}
-static int send_ethernet_pkt(uchar_t *data, int len) {
+static int send_ethernet_pkt(uchar_t *data, int len, void *private_data) {
struct ethernet_pkt *pkt;
+ struct vnet_state_t *vnet_state = &g_vnet_state;
pkt = (struct ethernet_pkt *)V3_Malloc(sizeof(struct ethernet_pkt));
- memset(pkt, 0, sizeof(struct ethernet_pkt));
-
if(pkt == NULL){
PrintError("VNET: Memory allocate fails\n");
return -1;
}
-
- ethernet_packet_init(pkt, data, len); //====here we copy sending data once
-
- PrintDebug("VNET: vm_send_pkt: transmitting packet: (size:%d)\n", (int)pkt->size);
+
+ memset(pkt, 0, sizeof(struct ethernet_pkt));
+ ethernet_packet_init(pkt, data, len);
+ v3_enqueue(vnet_state->g_inpkt_q, (addr_t)pkt);
+
+#ifdef CONFIG_DEBUG_VNET
+ PrintDebug("VNET: send_pkt: transmitting packet: (size:%d)\n", (int)pkt->size);
print_packet((char *)data, len);
-
- v3_enqueue(g_inpkt_q, (addr_t)pkt);
+#endif
return 0;
}
-//send raw ethernet packet
-int v3_vnet_send_rawpkt(uchar_t * buf, int len, void *private_data) {
- PrintDebug("VNET: In V3_Send_pkt: pkt length %d\n", len);
+int v3_vnet_send_rawpkt(uchar_t * buf,
+ int len,
+ void *private_data) {
+ PrintDebug("VNET: In v3_vnet_send_rawpkt: pkt length %d\n", len);
- return send_ethernet_pkt(buf, len);
+ return send_ethernet_pkt(buf, len, private_data);
}
//sending the packet from Dom0, should remove the link header
-int v3_vnet_send_udppkt(uchar_t * buf, int len, void *private_data) {
- PrintDebug("VNET: In V3_Send_pkt: pkt length %d\n", len);
-
+int v3_vnet_send_udppkt(uchar_t * buf,
+ int len,
+ void *private_data) {
uint_t hdr_len = sizeof(struct udp_link_header);
+
+ PrintDebug("VNET: In v3_vnet_send_udppkt: pkt length %d\n", len);
- return send_ethernet_pkt((uchar_t *)(buf+hdr_len), len - hdr_len);
+ return send_ethernet_pkt((uchar_t *)(buf+hdr_len), len - hdr_len, private_data);
}
static int search_device(char * device_name) {
+ struct vnet_state_t *vnet_state = &g_vnet_state;
int i;
for (i = 0; i < MAX_LINKS; i++) {
- if ((g_links.links[i] != NULL) && (g_links.links[i]->type == LINK_INTERFACE)) {
- if (strcmp(device_name, g_links.links[i]->dst_dev->name) == 0) {
+ if ((vnet_state->g_links.links[i] != NULL) && (vnet_state->g_links.links[i]->type == LINK_INTERFACE)) {
+ if (strcmp(device_name, vnet_state->g_links.links[i]->dst_dev->name) == 0) {
return i;
}
}
return -1;
}
-int vnet_register_device(struct vm_device * vdev,
- char * dev_name,
- uchar_t mac[6],
- int (*netif_input)(uchar_t * pkt, uint_t size, void * private_data),
- void * data) {
+int v3_vnet_add_node(struct v3_vm_info *info,
+ char * dev_name,
+ uchar_t mac[6],
+ int (*netif_input)(struct v3_vm_info * vm, uchar_t * pkt, uint_t size, void * private_data),
+ void * priv_data){
struct vnet_if_device * if_dev;
int idx = search_device(dev_name);
-
if (idx != -1) {
PrintDebug("VNET: register device: Already has device with the name %s\n", dev_name);
return -1;
}
- if_dev = (struct vnet_if_device *)(sizeof(struct vnet_if_device));
-
+ if_dev = (struct vnet_if_device *)V3_Malloc(sizeof(struct vnet_if_device));
if (if_dev == NULL) {
PrintError("VNET: Malloc fails\n");
return -1;
strcpy(if_dev->name, dev_name);
strncpy(if_dev->mac_addr, mac, 6);
- if_dev->dev = vdev;
if_dev->input = netif_input;
- if_dev->private_data = data;
-
- struct link_entry * link = (struct link_entry *)(sizeof(struct link_entry));
+ if_dev->private_data = priv_data;
+ if_dev->vm = info;
+ struct link_entry * link = (struct link_entry *)V3_Malloc(sizeof(struct link_entry));
link->type = LINK_INTERFACE;
link->dst_dev = if_dev;
idx = __add_link_entry(link);
- PrintDebug("VNET: Add device %s to link table, idx %d", dev_name, idx);
-
- return idx;
-}
-
-#if 0
-static int vnet_unregister_device(char * dev_name) {
- int idx;
-
- idx = search_device(dev_name);
-
- if (idx == -1) {
- PrintDebug("VNET: No device with name %s found\n", dev_name);
- return -1;
- }
-
- struct vnet_if_device * device = (struct vnet_if_device *)__delete_link_entry(idx);
- if (device == NULL) {
- PrintError("VNET: Device %s not in the link table %d, something may be wrong in link table\n", dev_name, idx);
- return -1;
- }
-
- V3_Free(device);
+ if (idx < 0) return -1;
return idx;
}
-#endif
-
int v3_vnet_pkt_process() {
struct ethernet_pkt * pkt;
+ struct vnet_state_t *vnet_state = &g_vnet_state;
- PrintDebug("VNET: In vnet_check\n");
-
- while ((pkt = (struct ethernet_pkt *)v3_dequeue(g_inpkt_q)) != NULL) {
- PrintDebug("VNET: In vnet_check: pt length %d, pt type %d\n", (int)pkt->size, (int)pkt->type);
- v3_hexdump(pkt->data, pkt->size, NULL, 0);
-
- if (handle_one_pkt(pkt)) {
- PrintDebug("VNET: vnet_check: handle one packet!\n");
- } else {
- PrintError("VNET: vnet_check: fail to forward one packet, discard it!\n");
- }
+ while ((pkt = (struct ethernet_pkt *)v3_dequeue(vnet_state->g_inpkt_q))!= NULL) {
+ if (handle_one_pkt(pkt) != -1) {
+ PrintDebug("VNET: vnet_check: handle one packet! pt length %d, pt type %d\n", (int)pkt->size, (int)pkt->type);
+ } else {
+ PrintDebug("VNET: vnet_check: Fail to forward one packet, discard it!\n");
+ }
- V3_Free(pkt); // be careful here
+ V3_Free(pkt); // be careful here
}
return 0;
}
-
-static void init_empty_link_table() {
+static void vnet_state_init(struct vnet_state_t *vnet_state) {
int i;
+ /*initial links table */
for (i = 0; i < MAX_LINKS; i++) {
- g_links.links[i] = NULL;
- }
-
- g_links.size = 0;
-}
-
-static void init_empty_route_table() {
- int i;
-
- for (i = 0; i < MAX_ROUTES; i++) {
- g_routes.routes[i] = NULL;
+ vnet_state->g_links.links[i] = NULL;
}
-
- g_links.size = 0;
-}
-
-static void init_tables() {
- init_empty_link_table();
- init_empty_route_table();
- init_route_cache();
-}
-
-static void init_pkt_queue() {
- PrintDebug("VNET Init package receiving queue\n");
-
- g_inpkt_q = v3_create_queue();
- v3_init_queue(g_inpkt_q);
-}
-
-static void free_link_mem(struct link_entry *link){
- V3_Free(link->dst_dev);
- V3_Free(link);
-}
-
-// TODO:
-static int addto_routing_link_tables(struct routing_entry *route_tab,
- uint16_t num_routes,
- struct link_entry *link_tab,
- uint16_t num_links){
- struct routing_entry *route, *new_route;
- struct link_entry *link, *new_link;
- int new_idx;
- int i;
- int link_idxs[MAX_LINKS];
-
- //add all of the links first, record their new indexs
- for (i = 0; i < num_links; i++) {
- link_idxs[i] = -1;
- link = &link_tab[i];
- new_link = (struct link_entry *)V3_Malloc(sizeof(struct link_entry));
-
- if (new_link == NULL){
- PrintError("VNET: Memory allocate error\n");
- return -1;
- }
-
- new_link->type = link->type;
-
- //TODO: how to set the input parameters here
- if (link->type == LINK_EDGE){
- struct vnet_if_device *ifdev = (struct vnet_if_device *)V3_Malloc(sizeof(struct vnet_if_device));
-
- if (ifdev == NULL){
- PrintError("VNET: Memory allocate fails\n");
- return -1;
- }
-
- memcpy(ifdev->name, link->dst_dev->name, DEVICE_NAME_LEN);
-
- // TODO:
- //ifdev->mac_addr
- //ifdev->input
- //ifdev->private_data
-
- new_link->dst_dev = ifdev;
- }else if (link->type == LINK_INTERFACE){
- struct vnet_if_link *iflink = (struct vnet_if_link *)V3_Malloc(sizeof(struct vnet_if_link));
-
- if (iflink == NULL){
- PrintError("VNET: Memory allocate fails\n");
- return -1;
- }
- iflink->pro_type = link->dst_link->pro_type;
- iflink->dest_ip = link->dst_link->dest_ip;
- iflink->dest_port = link->dst_link->dest_port;
- memcpy(&iflink->vnet_header, &link->dst_link->vnet_header, sizeof(struct udp_link_header));
-
- // TODO:
- //iflink->input =
- //iflink->private_data =
-
- new_link->dst_link = iflink;
- }else{
- PrintDebug("VNET: invalid link type\n");
- V3_Free(new_link);
- continue;
- }
-
- new_idx = __add_link_entry(new_link);
- if (new_idx < 0) {
- PrintError("VNET: Adding link fails\n");
- free_link_mem(new_link);
- continue;
- }
- link_idxs[i] = new_idx;
- }
-
- //add all of routes, replace with new link indexs
- for (i = 0; i < num_routes; i++) {
- route = &route_tab[i];
- if (route->link_idx < 0 || route->link_idx >= num_links ||
- ((route->src_link_idx != -1) &&
- (route->src_link_idx < 0 || route->src_link_idx >= num_links))){
- PrintError("VNET: There is error in the intial tables data from guest\n");
- continue;
- }
-
- new_route = (struct routing_entry *)V3_Malloc(sizeof(struct routing_entry));
-
- if (new_route == NULL){
- PrintError("VNET: Memory allocate fails\n");
- return -1;
- }
- memcpy(new_route, route, sizeof(struct routing_entry));
-
- new_route->link_idx = link_idxs[new_route->link_idx];
-
- if (route->src_link_idx != -1)
- new_route->src_link_idx = link_idxs[new_route->src_link_idx];
-
- if((__add_route_entry(new_route)) == -1){
- PrintDebug("VNET: Adding route fails");
- V3_Free(new_route);
- }
- new_route = NULL;
+ vnet_state->g_links.size = 0;
+ if(v3_lock_init(&(vnet_state->g_links.lock)) == -1){
+ PrintError("VNET: Failure to init lock for links table\n");
}
+ PrintDebug("VNET: Links table initiated\n");
-
- return 0;
-}
-
-struct table_init_info {
- addr_t routing_table_start;
- uint16_t routing_table_size;
- addr_t link_table_start;
- uint16_t link_table_size;
-};
-
-//add the guest specified routes and links to the tables
-static int handle_init_tables_hcall(struct guest_info * info, uint_t hcall_id, void * priv_data) {
- addr_t guest_addr = (addr_t)info->vm_regs.rcx;
- addr_t info_addr, route_addr, link_addr;
- struct table_init_info *init_info;
- struct link_entry *link_array;
- struct routing_entry *route_array;
-
- if (guest_va_to_host_va(info, guest_addr, &info_addr) == -1) {
- PrintError("VNET: Could not translate guest address\n");
- return -1;
+ /*initial routes table */
+ for (i = 0; i < MAX_ROUTES; i++) {
+ vnet_state->g_routes.routes[i] = NULL;
}
-
- init_info = (struct table_init_info *)info_addr;
-
- if (guest_va_to_host_va(info, init_info->routing_table_start, &route_addr) == -1) {
- PrintError("VNET: Could not translate guest address\n");
- return -1;
+ vnet_state->g_routes.size = 0;
+ if(v3_lock_init(&(vnet_state->g_routes.lock)) == -1){
+ PrintError("VNET: Failure to init lock for routes table\n");
}
- route_array = (struct routing_entry *)route_addr;
+ PrintDebug("VNET: Routes table initiated\n");
- if (guest_va_to_host_va(info, init_info->link_table_start, &link_addr) == -1) {
- PrintError("VNET: Could not translate guest address\n");
- return -1;
- }
- link_array = (struct link_entry *)link_addr;
+ /*initial pkt receiving queue */
+ vnet_state->g_inpkt_q = v3_create_queue();
+ v3_init_queue(vnet_state->g_inpkt_q);
+ PrintDebug("VNET: Receiving queue initiated\n");
- addto_routing_link_tables(route_array, init_info->routing_table_size, link_array, init_info->link_table_size);
-
- return 0;
+ /*initial routing cache */
+ init_route_cache(vnet_state);
}
-void v3_vnet_init(struct guest_info * vm) {
- init_tables();
- init_pkt_queue();
+int v3_init_vnet() {
+ vnet_state_init(&g_vnet_state);
- v3_register_hypercall(vm, VNET_INITAB_HCALL, handle_init_tables_hcall, NULL);
-
PrintDebug("VNET Initialized\n");
-}
+ return 0;
+}
