*
* 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>
+ * 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 <devices/pci.h>
}__attribute__((packed));
-#define QUEUE_SIZE 256
+#define QUEUE_SIZE 1024
#define CTRL_QUEUE_SIZE 64
#define ETH_ALEN 6
struct list_head dev_link;
};
-#if 1
-//Temporarly for debug
+
+#ifdef CONFIG_DEBUG_VIRTIO_NET
+
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);
}
+#endif
+
+#if 0
+//Temporarly for debug
+
static struct virtio_net_state *temp_net_states[3];
static int net_idx = 0;
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);
+ PrintDebug("Virito NIC: In sending stub, guest %p, count %d\n", private_data, count);
+
+#ifdef CONFIG_DEBUG_VIRTIO_NET
+ print_packet(buf, 20);
+#endif
+
struct virtio_net_state *virtio_state = (struct virtio_net_state *)private_data;
if (virtio_state == temp_net_states[0])
}
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);
+ //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;
}
len = (desc->length < buf_len)?desc->length:buf_len;
-
memcpy(desc_buf, buf, len);
- PrintDebug("Length=%d\n", len);
-
return len;
}
uint32_t data_len = size;
uint32_t offset = 0;
- 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: 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);
+ PrintError("VIRTIO NIC: sending packet to net_state %p, size:%d", virtio, size);
if (!raw) {
data_len -= hdr_len;
return -1;
}
-
if (q->cur_avail_idx < q->avail->index) {
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);
+ //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);
+ //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");
// 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);
+ //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);
}
buf_desc->length = len; // TODO: do we need this?
- PrintError("JACK: setting buffer descriptor length to %d)\n", buf_desc->length);
+ //PrintError("JACK: setting buffer descriptor length to %d)\n", buf_desc->length);
}
virtio->virtio_cfg.pci_isr = 0x1;
}
-
- PrintError("\n\n\n\n");
return offset;
}
//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);
+ //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;
uint32_t req_len = 0;
int i = 0;
- PrintDebug("Descriptor Count=%d, index=%d\n", desc_cnt, q->cur_avail_idx % q->queue_size);
+ //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);
+ //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);
+ //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);
+ //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) {
PrintError("Error handling nic operation\n");
}
if (!(q->avail->flags & VIRTIO_NO_IRQ_FLAG)) {
- PrintDebug("Raising IRQ %d\n", virtio_state->pci_dev->config_header.intr_line);
+ //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;
}
{
uint16_t queue_idx = *(uint16_t *)src;
- PrintDebug("Handling Kick\n");
+ //PrintDebug("Handling Kick\n");
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");
return 0;
}
+#if 1
+//temporary interface between Virtio-NIC and Vnet
+//Treat vnet as backend, and virtio nic as frontend
+
+//used when virtio_nic get a packet from guest and send it to the backend
+// send packet to all of the virtio nic devices other than the sender
+static int vnet_send(uint8_t * buf, uint32_t len, void * private_data, struct vm_device *dest_dev){
+
+ PrintDebug("Virito NIC: In vnet_send: guest net state %p\n", private_data);
+
+#ifdef CONFIG_DEBUG_VIRTIO_NET
+ print_packet(buf, len);
+#endif
+
+ v3_vnet_send_rawpkt(buf, len, private_data);
+ return 0;
+}
+
+//used to send packet to guest by a virtio nic
+static int vnet_receive(uint8_t * buf, uint32_t count, void * private_data, struct vm_device *src_dev){
+
+ return 0;
+}
+
+static int virtio_input(uchar_t * buf, uint_t len, void * private_data){
+ PrintDebug("Virito NIC: In virtio_input: guest net state %p\n", private_data);
+
+#ifdef CONFIG_DEBUG_VIRTIO_NET
+ print_packet(buf, len);
+#endif
+
+ return __virtio_dev_send(buf, len, private_data);
+}
+
+
+//register a virtio device to the vnet as backend
+void register_virtio_to_vnet(struct vm_device *dev,
+ char *dev_name,
+ uchar_t mac[6]){
+ 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));
+
+ struct virtio_dev_state *virtio_state = (struct virtio_dev_state *)dev->private_data;
+
+ net_state->net_ops = (struct v3_dev_net_ops *)V3_Malloc(sizeof(struct v3_dev_net_ops));
+
+ net_state->net_ops->send = &vnet_send;
+ net_state->net_ops->receive = &vnet_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);
+
+ PrintDebug("VNET: connect virtio nic state %p to vnet\n", net_state);
+
+ //add a device link to link table
+ int idx = vnet_register_device(dev, dev_name, mac, &virtio_input, net_state);
+
+ uchar_t srcmac[6] = {0x00,0x02,0x55,0x67,0x42,0x39};
+ uchar_t dstmac[6] = {0xff,0xff,0xff,0xff,0xff,0xff};
+ uchar_t zeromac[6] = {0,0,0,0,0,0};
+
+ vnet_add_route_entry(zeromac, dstmac, MAC_ANY, MAC_NONE, idx, LINK_INTERFACE, -1, LINK_INTERFACE);
+ if (idx == 0)
+ vnet_add_route_entry(zeromac, srcmac, MAC_ANY, MAC_NONE, idx, LINK_INTERFACE, -1, LINK_INTERFACE);
+ if (idx == 1)
+ vnet_add_route_entry(srcmac, zeromac, MAC_NONE, MAC_ANY, idx, LINK_INTERFACE, -1, LINK_INTERFACE);
+
+}
+
+#endif
static int virtio_init(struct guest_info * vm, v3_cfg_tree_t * cfg) {
struct vm_device * pci_bus = v3_find_dev(vm, v3_cfg_val(cfg, "bus"));
//for temporary testing, add a backend
- #if 1
-
+#if 0
+
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));
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
+#endif
+
+#if 1 //test interface between vnet & virtio-nic
+
+ uchar_t mac[6] = {0,0,0,0,0,0};
+ register_virtio_to_vnet(dev, name,mac);
+
+#endif
+
return 0;
}
