Palacios Public Git Repository

To checkout Palacios execute

  git clone http://v3vee.org/palacios/palacios.web/palacios.git
This will give you the master branch. You probably want the devel branch or one of the release branches. To switch to the devel branch, simply execute
  cd palacios
  git checkout --track -b devel origin/devel
The other branches are similar.


VNET update
[palacios.git] / palacios / src / devices / vnet_nic.c
index 94c8a42..7a7dac0 100644 (file)
@@ -40,147 +40,39 @@ struct vnet_nic_state {
     int vnet_dev_id;
 };
 
-#if 0
-//Malloc/Free version of send
-static int vnet_send(uint8_t * buf, uint32_t len, void * private_data, struct vm_device *dest_dev){
-    struct v3_vnet_pkt * pkt = NULL;
-    struct guest_info *core  = (struct guest_info *)private_data; 
-
-#ifdef WCONFIG_DEBUG_VNET_NIC
-    {
-       PrintDebug("Virtio VNET-NIC: send pkt size: %d\n", len);
-       v3_hexdump(buf, len, NULL, 0);
-    }
-#endif
-
-#ifdef CONFIG_VNET_PROFILE
-    uint64_t start, end;
-    rdtscll(start);
-#endif
-
-    pkt = (struct v3_vnet_pkt *)V3_Malloc(sizeof(struct v3_vnet_pkt));
-
-    if(pkt == NULL){
-       PrintError("Malloc() fails");
-       return -1;
-    }
-       
-#ifdef CONFIG_VNET_PROFILE
-    {
-       rdtscll(end);
-       core->vnet_times.time_mallocfree = end - start;
-    }
-#endif
-
-
-    pkt->size = len;
-    pkt->src_type = LINK_INTERFACE;
-    pkt->src_id = 0;
-    memcpy(pkt->data, buf, pkt->size);
-
-#ifdef CONFIG_VNET_PROFILE
-    {
-       rdtscll(start);
-       core->vnet_times.memcpy_time = start - end;
-       core->vnet_times.time_copy_from_guest = start - core->vnet_times.virtio_handle_start - core->vnet_times.time_mallocfree;
-    }
-#endif
-
-    v3_vnet_send_pkt(pkt, (void *)core);
 
-#ifdef CONFIG_VNET_PROFILE
-    rdtscll(start);
-#endif
-
-    V3_Free(pkt);
-
-#ifdef CONFIG_VNET_PROFILE
-    {
-       rdtscll(end);
-       core->vnet_times.time_mallocfree += end - start;
-    }
-#endif
-
-    return 0;
-}
-
-#endif
-
-#if 1
-//alternative way, no malloc/free
 static int vnet_send(uint8_t * buf, uint32_t len, void * private_data, struct vm_device *dest_dev){
-    struct v3_vnet_pkt pkt;
     struct vnet_nic_state *vnetnic = (struct vnet_nic_state *)private_data;
-    struct guest_info *core  = &(vnetnic->vm->cores[0]); 
-
-#ifdef CONFIG_VNET_PROFILE
-    uint64_t start, end;
-    rdtscll(start);
-#endif
 
+    struct v3_vnet_pkt pkt;
     pkt.size = len;
     pkt.src_type = LINK_INTERFACE;
     pkt.src_id = vnetnic->vnet_dev_id;
-    memcpy(pkt.data, buf, pkt.size);
-
-#ifdef CONFIG_DEBUG_VNET_NIC
-    {
-       PrintDebug("Virtio VNET-NIC: send pkt size: %d, pkt src_id: %d, src_type: %d\n", 
-                       len, pkt.src_id, pkt.src_type);
-       v3_hexdump(buf, len, NULL, 0);
-    }
-#endif
-
-
-#ifdef CONFIG_VNET_PROFILE
-    rdtscll(end);
-    core->vnet_times.time_copy_from_guest = end - core->vnet_times.virtio_handle_start;
-    core->vnet_times.memcpy_time = end - start;
-#endif
-
-    v3_vnet_send_pkt(&pkt, (void *)core);
-
-    return 0;
-}
-#endif
-
-#if 0
-//alternative way, no malloc/free, no copy
-//need to change pkt format
-static int vnet_send(uint8_t * buf, uint32_t len, void * private_data, struct vm_device *dest_dev){
-    struct v3_vnet_pkt pkt;
-    struct guest_info *core  = (struct guest_info *)private_data; 
+    memcpy(pkt.header, buf, ETHERNET_HEADER_LEN);
+    pkt.data = buf;
 
-    
 #ifdef CONFIG_DEBUG_VNET_NIC
     {
-       PrintDebug("Virtio VNET-NIC: send pkt size: %d\n", len);
+       PrintDebug("Virtio VNET-NIC: send pkt size: %d, pkt src_id: %d\n", 
+                       len,  vnetnic->vnet_dev_id);
        v3_hexdump(buf, len, NULL, 0);
     }
 #endif
-
-    pkt.size = len;
-    pkt.data = buf;
-
-#ifdef CONFIG_VNET_PROFILE
-    uint64_t start, end;
-    rdtscll(start);
-#endif
-
-    v3_vnet_send_pkt(&pkt, (void *)core);
-
-#ifdef CONFIG_VNET_PROFILE
-    {
-       rdtscll(end);
-       core->vnet_times.vnet_handle_time = end - start;
-    }
-#endif
+/*
+    v3_vnet_rx(buf, len, vnetnic->vnet_dev_id, LINK_INTERFACE);
+       
+    //if on the dom0 core, interrupt the domU core to poll pkts
+    //otherwise, call the polling directly
+    int cpu = V3_Get_CPU();
+    cpu = (cpu == 0)?1:0;
+    v3_interrupt_cpu(vnetnic->vm, cpu, V3_VNET_POLLING_VECTOR);
+ */
+    v3_vnet_send_pkt(&pkt, NULL);
 
     return 0;
 }
 
-#endif
-
 static int virtio_input(struct v3_vm_info *info, struct v3_vnet_pkt * pkt, void * private_data){
     struct vnet_nic_state *vnetnic = (struct vnet_nic_state *)private_data;
        
@@ -306,41 +198,44 @@ static int vnet_nic_init(struct v3_vm_info * vm, v3_cfg_tree_t * cfg) {
        }
     }
 #endif
-#if 0 //temporay hacking for vnet virtio bridge
+
+//for temporary hack for Linux bridge (w/o encapuslation) test
+#if 0
     {
-       uchar_t tapmac[6] = {0x00,0x02,0x55,0x67,0x42,0x39}; //for Intel-VT test HW
-       //uchar_t tapmac[6] = {0x6e,0xa8,0x75,0xf4,0x82,0x95};
-       uchar_t dstmac[6] = {0xff,0xff,0xff,0xff,0xff,0xff};
+       static int vnet_nic_guestid = -1;
+       static int vnet_nic_dom0 = -1;
        uchar_t zeromac[6] = {0,0,0,0,0,0};
+               
+       if(!strcmp(name, "vnet_nic")){ //domu
+           vnet_nic_guestid = vnet_dev_id;
+       }
+       if (!strcmp(name, "vnet_nic_dom0")){
+           vnet_nic_dom0 = vnet_dev_id;
+       }\r
 
-       struct v3_vnet_route route;
-        route.dst_id = vnet_dev_id;
-       route.dst_type = LINK_INTERFACE;
-       route.src_id = -1;
-       route.src_type = LINK_ANY;
-
-       if(!strcmp(name, "vnet_nicdom0")){
-           memcpy(route.dst_mac, tapmac, 6);
-           route.dst_mac_qual = MAC_NONE;
+       if(vnet_nic_guestid != -1 && vnet_nic_dom0 !=-1){
+           struct v3_vnet_route route;
+               
+           route.src_id = vnet_nic_guestid;
+           route.src_type = LINK_INTERFACE;
+           route.dst_id = vnet_nic_dom0;
+           route.dst_type = LINK_INTERFACE;
+           memcpy(route.dst_mac, zeromac, 6);
+           route.dst_mac_qual = MAC_ANY;
            memcpy(route.src_mac, zeromac, 6);
-           route.src_mac_qual = MAC_ANY;
-          
+           route.src_mac_qual = MAC_ANY;  
            v3_vnet_add_route(route);
 
-           memcpy(route.dst_mac, dstmac, 6);
-           route.dst_mac_qual = MAC_NONE;
-           memcpy(route.src_mac, tapmac, 6);
-           route.src_mac_qual = MAC_NOT;
-
-           v3_vnet_add_route(route);
-       }
 
-       if (!strcmp(name, "vnet_nic0")){
+           route.src_id = vnet_nic_dom0;
+           route.src_type = LINK_INTERFACE;
+           route.dst_id = vnet_nic_guestid;
+           route.dst_type = LINK_INTERFACE;
            memcpy(route.dst_mac, zeromac, 6);
            route.dst_mac_qual = MAC_ANY;
-           memcpy(route.src_mac, tapmac, 6);
-           route.src_mac_qual = MAC_NONE;
-          
+           memcpy(route.src_mac, zeromac, 6);
+           route.src_mac_qual = MAC_ANY;
+
            v3_vnet_add_route(route);
        }
     }