X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fdevices%2Fvnet_nic.c;h=7a7dac01c91c7a4bc6083e7ac2388c362202a426;hb=0aed29b0f8c93d2bef57d589e8bf058445e89fc2;hp=c1f6dc90311b61acedcbf98327ba0d0ea87b479d;hpb=c4fa59ab9c6963f1b7d8ab56718513070f92f768;p=palacios.git diff --git a/palacios/src/devices/vnet_nic.c b/palacios/src/devices/vnet_nic.c index c1f6dc9..7a7dac0 100644 --- a/palacios/src/devices/vnet_nic.c +++ b/palacios/src/devices/vnet_nic.c @@ -35,148 +35,44 @@ struct vnet_nic_state { char mac[6]; - struct guest_info * core; + struct v3_vm_info * vm; struct v3_dev_net_ops net_ops; + int vnet_dev_id; }; -#if 0 -//used when virtio_nic get a packet from guest and send it to the backend -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 guest_info *core = (struct guest_info *)private_data; - -#ifdef CONFIG_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 + struct vnet_nic_state *vnetnic = (struct vnet_nic_state *)private_data; + struct v3_vnet_pkt pkt; pkt.size = len; pkt.src_type = LINK_INTERFACE; - pkt.src_id = 0; - memcpy(pkt.data, buf, pkt.size); - -#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; + pkt.src_id = vnetnic->vnet_dev_id; + 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; @@ -250,6 +146,7 @@ static int vnet_nic_init(struct v3_vm_info * vm, v3_cfg_tree_t * cfg) { vnetnic->net_ops.send = vnet_send; memcpy(vnetnic->mac, mac, 6); + vnetnic->vm = vm; if (v3_dev_connect_net(vm, v3_cfg_val(frontend_cfg, "tag"), &(vnetnic->net_ops), frontend_cfg, vnetnic) == -1) { @@ -264,50 +161,84 @@ static int vnet_nic_init(struct v3_vm_info * vm, v3_cfg_tree_t * cfg) { if ((vnet_dev_id = register_to_vnet(vm, vnetnic, name, vnetnic->mac)) == -1) { PrintError("Vnet-nic device %s (mac: %s) fails to registered to VNET\n", name, macstr); } + vnetnic->vnet_dev_id = vnet_dev_id; PrintDebug("Vnet-nic device %s (mac: %s, %ld) registered to VNET\n", name, macstr, *((ulong_t *)vnetnic->mac)); -//for temporary hack -#if 1 +//for temporary hack for vnet bridge test +#if 1 { - 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}; uchar_t zeromac[6] = {0,0,0,0,0,0}; + + if(!strcmp(name, "vnet_nic")){ + struct v3_vnet_route route; + + route.dst_id = vnet_dev_id; + route.dst_type = LINK_INTERFACE; + route.src_id = 0; + route.src_type = LINK_EDGE; + memcpy(route.dst_mac, zeromac, 6); + route.dst_mac_qual = MAC_ANY; + memcpy(route.src_mac, zeromac, 6); + route.src_mac_qual = MAC_ANY; + v3_vnet_add_route(route); - 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; + route.dst_id = 0; + route.dst_type = LINK_EDGE; + route.src_id = vnet_dev_id; + route.src_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; - - 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); } + } +#endif - if (!strcmp(name, "vnet_nic0")){ +//for temporary hack for Linux bridge (w/o encapuslation) test +#if 0 + { + 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; + } + + 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; + v3_vnet_add_route(route); + + + 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); } } - #endif return 0;