X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fdevices%2Fvnet_nic.c;h=0fdaabadc54ceb524a06cfe85bc9b2b7b389f132;hb=16047acf61f82cb4ae33bcb84b221c2098215172;hp=479593b97293906adb9d6f6e10a6298e6d72b254;hpb=65e038cb9940879f002209382eeafae6f58934b6;p=palacios.git diff --git a/palacios/src/devices/vnet_nic.c b/palacios/src/devices/vnet_nic.c index 479593b..0fdaaba 100644 --- a/palacios/src/devices/vnet_nic.c +++ b/palacios/src/devices/vnet_nic.c @@ -7,8 +7,8 @@ * and the University of New Mexico. You can find out more at * http://www.v3vee.org * - * Copyright (c) 2008, Lei Xia - * Copyright (c) 2008, The V3VEE Project + * Copyright (c) 2010, Lei Xia + * Copyright (c) 2010, The V3VEE Project * All rights reserved. * * Author: Lei Xia @@ -26,25 +26,26 @@ #include #include #include +#include #ifndef CONFIG_DEBUG_VNET_NIC #undef PrintDebug #define PrintDebug(fmt, args...) #endif - struct vnet_nic_state { - char mac[6]; struct v3_vm_info * vm; struct v3_dev_net_ops net_ops; int vnet_dev_id; }; -static int vnet_send(uint8_t * buf, uint32_t len, void * private_data, struct vm_device * dest_dev){ +/* called by frontend, send pkt to VNET */ +static int vnet_nic_send(uint8_t * buf, uint32_t len, + void * private_data) { struct vnet_nic_state * vnetnic = (struct vnet_nic_state *)private_data; - struct v3_vnet_pkt pkt; + struct v3_vnet_pkt pkt; pkt.size = len; pkt.src_type = LINK_INTERFACE; pkt.src_id = vnetnic->vnet_dev_id; @@ -53,129 +54,97 @@ static int vnet_send(uint8_t * buf, uint32_t len, void * private_data, struct vm #ifdef CONFIG_DEBUG_VNET_NIC { - PrintDebug("Virtio VNET-NIC: send pkt size: %d, pkt src_id: %d\n", - len, vnetnic->vnet_dev_id); + PrintDebug("VNET-NIC: send pkt (size: %d, src_id: %d, src_type: %d)\n", + pkt.size, pkt.src_id, pkt.src_type); v3_hexdump(buf, len, NULL, 0); } #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; + return v3_vnet_send_pkt(&pkt, NULL);; } -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; - - PrintDebug("Vnet-nic: In input: vnet_nic state %p\n", vnetnic); - return vnetnic->net_ops.recv(pkt->data, pkt->size, vnetnic->net_ops.frontend_data); -} +/* send pkt to frontend device */ +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; -static int register_to_vnet(struct v3_vm_info * vm, - struct vnet_nic_state * vnet_nic, - char * dev_name, - uint8_t mac[6]) { - - PrintDebug("Vnet-nic: register Vnet-nic device %s, state %p to VNET\n", dev_name, vnet_nic); + PrintDebug("VNET-NIC: receive pkt (size %d, src_id:%d, src_type: %d, dst_id: %d, dst_type: %d)\n", + pkt->size, pkt->src_id, pkt->src_type, pkt->dst_id, pkt->dst_type); - return v3_vnet_add_dev(vm, mac, virtio_input, (void *)vnet_nic); + return vnetnic->net_ops.recv(pkt->data, pkt->size, + vnetnic->net_ops.frontend_data); } -static int vnet_nic_free(struct vm_device * dev) { - return 0; -} +/* poll data from front-end */ +static void virtio_poll(struct v3_vm_info * info, + int budget, + void * private_data){ + struct vnet_nic_state *vnetnic = (struct vnet_nic_state *)private_data; -static struct v3_device_ops dev_ops = { - .free = vnet_nic_free, - .reset = NULL, - .start = NULL, - .stop = NULL, -}; + vnetnic->net_ops.poll(info, budget, vnetnic->net_ops.frontend_data); +} -static int str2mac(char * macstr, uint8_t mac[6]){ - uint8_t hex[2]; - int i = 0; - char * s = macstr; +static int vnet_nic_free(struct vnet_nic_state * vnetnic) { - while (s) { - memcpy(hex, s, 2); - mac[i++] = (char)atox(hex); + v3_vnet_del_dev(vnetnic->vnet_dev_id); + V3_Free(vnetnic); + + return 0; +} - if (i == 6) { - return 0; - } +static struct v3_device_ops dev_ops = { + .free = (int (*)(void *))vnet_nic_free, - s = strchr(s, ':'); +}; - if (s) { - s++; - } - } +static struct v3_vnet_dev_ops vnet_dev_ops = { + .input = virtio_input, + .poll = virtio_poll, +}; - return -1; -} static int vnet_nic_init(struct v3_vm_info * vm, v3_cfg_tree_t * cfg) { struct vnet_nic_state * vnetnic = NULL; char * dev_id = v3_cfg_val(cfg, "ID"); - char * macstr = NULL; - int vnet_dev_id = 0; - v3_cfg_tree_t * frontend_cfg = v3_cfg_subtree(cfg, "frontend"); - - macstr = v3_cfg_val(frontend_cfg, "mac"); + int vnet_dev_id; - if (macstr == NULL) { - PrintDebug("Vnet-nic configuration error: No Mac specified\n"); - return -1; - } + v3_cfg_tree_t * frontend_cfg = v3_cfg_subtree(cfg, "frontend"); vnetnic = (struct vnet_nic_state *)V3_Malloc(sizeof(struct vnet_nic_state)); memset(vnetnic, 0, sizeof(struct vnet_nic_state)); - struct vm_device * dev = v3_allocate_device(dev_id, &dev_ops, vnetnic); - - if (v3_attach_device(vm, dev) == -1) { + struct vm_device * dev = v3_add_device(vm, dev_id, &dev_ops, vnetnic); + if (dev == NULL) { PrintError("Could not attach device %s\n", dev_id); + V3_Free(vnetnic); return -1; } - - - vnetnic->net_ops.send = vnet_send; - str2mac(macstr, vnetnic->mac); + vnetnic->net_ops.send = vnet_nic_send; vnetnic->vm = vm; if (v3_dev_connect_net(vm, v3_cfg_val(frontend_cfg, "tag"), &(vnetnic->net_ops), frontend_cfg, vnetnic) == -1) { PrintError("Could not connect %s to frontend %s\n", dev_id, v3_cfg_val(frontend_cfg, "tag")); + v3_remove_device(dev); return -1; } PrintDebug("Vnet-nic: Connect %s to frontend %s\n", - dev_id, v3_cfg_val(frontend_cfg, "tag")); + dev_id, v3_cfg_val(frontend_cfg, "tag")); - if ((vnet_dev_id = register_to_vnet(vm, vnetnic, dev_id, vnetnic->mac)) == -1) { - PrintError("Vnet-nic device %s (mac: %s) fails to registered to VNET\n", dev_id, macstr); - return -1; + if ((vnet_dev_id = v3_vnet_add_dev(vm, vnetnic->net_ops.fnt_mac, &vnet_dev_ops, (void *)vnetnic)) == -1) { + PrintError("Vnet-nic device %s fails to registered to VNET\n", dev_id); + + v3_remove_device(dev); + return 0; } - vnetnic->vnet_dev_id = vnet_dev_id; - PrintDebug("Vnet-nic device %s (mac: %s, %ld) registered to VNET\n", dev_id, macstr, *((uint32_t *)vnetnic->mac)); - - return 0; }