ChangeSet 1.1159.256.61, 2005/03/18 11:18:23+00:00, xenbk@xxxxxxxxxxxxxxxxxx
Merge http://xen.bkbits.net:8080/xen-2.0-testing.bk
into gandalf.hpl.hp.com:/var/bk/xen-2.0-testing.bk
b/linux-2.6.11-xen-sparse/drivers/xen/netback/interface.c | 344 ++++++++++++++
b/xen/include/public/io/domain_controller.h | 11
linux-2.6.10-xen-sparse/drivers/xen/netback/interface.c | 344 --------------
3 files changed, 344 insertions(+), 355 deletions(-)
diff -Nru a/linux-2.6.10-xen-sparse/drivers/xen/netback/interface.c
b/linux-2.6.10-xen-sparse/drivers/xen/netback/interface.c
--- a/linux-2.6.10-xen-sparse/drivers/xen/netback/interface.c 2005-03-25
07:04:27 -05:00
+++ /dev/null Wed Dec 31 16:00:00 196900
@@ -1,344 +0,0 @@
-/******************************************************************************
- * arch/xen/drivers/netif/backend/interface.c
- *
- * Network-device interface management.
- *
- * Copyright (c) 2004, Keir Fraser
- */
-
-#include "common.h"
-#include <linux/rtnetlink.h>
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
-#define VMALLOC_VMADDR(x) ((unsigned long)(x))
-#endif
-
-#define NETIF_HASHSZ 1024
-#define NETIF_HASH(_d,_h) (((int)(_d)^(int)(_h))&(NETIF_HASHSZ-1))
-
-static netif_t *netif_hash[NETIF_HASHSZ];
-
-netif_t *netif_find_by_handle(domid_t domid, unsigned int handle)
-{
- netif_t *netif = netif_hash[NETIF_HASH(domid, handle)];
- while ( (netif != NULL) &&
- ((netif->domid != domid) || (netif->handle != handle)) )
- netif = netif->hash_next;
- return netif;
-}
-
-static void __netif_up(netif_t *netif)
-{
- struct net_device *dev = netif->dev;
- spin_lock_bh(&dev->xmit_lock);
- netif->active = 1;
- spin_unlock_bh(&dev->xmit_lock);
- (void)request_irq(netif->irq, netif_be_int, 0, dev->name, netif);
- netif_schedule_work(netif);
-}
-
-static void __netif_down(netif_t *netif)
-{
- struct net_device *dev = netif->dev;
- spin_lock_bh(&dev->xmit_lock);
- netif->active = 0;
- spin_unlock_bh(&dev->xmit_lock);
- free_irq(netif->irq, netif);
- netif_deschedule_work(netif);
-}
-
-static int net_open(struct net_device *dev)
-{
- netif_t *netif = netdev_priv(dev);
- if ( netif->status == CONNECTED )
- __netif_up(netif);
- netif_start_queue(dev);
- return 0;
-}
-
-static int net_close(struct net_device *dev)
-{
- netif_t *netif = netdev_priv(dev);
- netif_stop_queue(dev);
- if ( netif->status == CONNECTED )
- __netif_down(netif);
- return 0;
-}
-
-static void __netif_disconnect_complete(void *arg)
-{
- netif_t *netif = (netif_t *)arg;
- ctrl_msg_t cmsg;
- netif_be_disconnect_t disc;
-
- /*
- * These can't be done in netif_disconnect() because at that point there
- * may be outstanding requests in the network stack whose asynchronous
- * responses must still be notified to the remote driver.
- */
- unbind_evtchn_from_irq(netif->evtchn);
- vfree(netif->tx); /* Frees netif->rx as well. */
-
- /* Construct the deferred response message. */
- cmsg.type = CMSG_NETIF_BE;
- cmsg.subtype = CMSG_NETIF_BE_DISCONNECT;
- cmsg.id = netif->disconnect_rspid;
- cmsg.length = sizeof(netif_be_disconnect_t);
- disc.domid = netif->domid;
- disc.netif_handle = netif->handle;
- disc.status = NETIF_BE_STATUS_OKAY;
- memcpy(cmsg.msg, &disc, sizeof(disc));
-
- /*
- * Make sure message is constructed /before/ status change, because
- * after the status change the 'netif' structure could be deallocated at
- * any time. Also make sure we send the response /after/ status change,
- * as otherwise a subsequent CONNECT request could spuriously fail if
- * another CPU doesn't see the status change yet.
- */
- mb();
- if ( netif->status != DISCONNECTING )
- BUG();
- netif->status = DISCONNECTED;
- mb();
-
- /* Send the successful response. */
- ctrl_if_send_response(&cmsg);
-}
-
-void netif_disconnect_complete(netif_t *netif)
-{
- INIT_WORK(&netif->work, __netif_disconnect_complete, (void *)netif);
- schedule_work(&netif->work);
-}
-
-void netif_create(netif_be_create_t *create)
-{
- int err = 0;
- domid_t domid = create->domid;
- unsigned int handle = create->netif_handle;
- struct net_device *dev;
- netif_t **pnetif, *netif;
- char name[IFNAMSIZ] = {};
-
- if(create->vifname[0] == '\0'){
- snprintf(name, IFNAMSIZ - 1, "vif%u.%u", domid, handle);
- } else {
- snprintf(name, IFNAMSIZ - 1, "%s", create->vifname);
- }
- dev = alloc_netdev(sizeof(netif_t), name, ether_setup);
- if ( dev == NULL )
- {
- DPRINTK("Could not create netif: out of memory\n");
- create->status = NETIF_BE_STATUS_OUT_OF_MEMORY;
- return;
- }
-
- netif = netdev_priv(dev);
- memset(netif, 0, sizeof(*netif));
- netif->domid = domid;
- netif->handle = handle;
- netif->status = DISCONNECTED;
- atomic_set(&netif->refcnt, 0);
- netif->dev = dev;
-
- netif->credit_bytes = netif->remaining_credit = ~0UL;
- netif->credit_usec = 0UL;
- /*init_ac_timer(&new_vif->credit_timeout);*/
-
- pnetif = &netif_hash[NETIF_HASH(domid, handle)];
- while ( *pnetif != NULL )
- {
- if ( ((*pnetif)->domid == domid) && ((*pnetif)->handle == handle) )
- {
- DPRINTK("Could not create netif: already exists\n");
- create->status = NETIF_BE_STATUS_INTERFACE_EXISTS;
- free_netdev(dev);
- return;
- }
- pnetif = &(*pnetif)->hash_next;
- }
-
- dev->hard_start_xmit = netif_be_start_xmit;
- dev->get_stats = netif_be_get_stats;
- dev->open = net_open;
- dev->stop = net_close;
-
- /* Disable queuing. */
- dev->tx_queue_len = 0;
-
- /*
- * Initialise a dummy MAC address. We choose the numerically largest
- * non-broadcast address to prevent the address getting stolen by an
- * Ethernet bridge for STP purposes. (FE:FF:FF:FF:FF:FF)
- */
- memset(dev->dev_addr, 0xFF, ETH_ALEN);
- dev->dev_addr[0] &= ~0x01;
-
- rtnl_lock();
- err = register_netdevice(dev);
- rtnl_unlock();
-
- if ( err != 0 )
- {
- DPRINTK("Could not register new net device %s: err=%d\n",
- dev->name, err);
- create->status = NETIF_BE_STATUS_OUT_OF_MEMORY;
- free_netdev(dev);
- return;
- }
-
- netif->hash_next = *pnetif;
- *pnetif = netif;
-
- DPRINTK("Successfully created netif\n");
- create->status = NETIF_BE_STATUS_OKAY;
-}
-
-void netif_destroy(netif_be_destroy_t *destroy)
-{
- domid_t domid = destroy->domid;
- unsigned int handle = destroy->netif_handle;
- netif_t **pnetif, *netif;
-
- pnetif = &netif_hash[NETIF_HASH(domid, handle)];
- while ( (netif = *pnetif) != NULL )
- {
- if ( (netif->domid == domid) && (netif->handle == handle) )
- {
- if ( netif->status != DISCONNECTED )
- goto still_connected;
- goto destroy;
- }
- pnetif = &netif->hash_next;
- }
-
- destroy->status = NETIF_BE_STATUS_INTERFACE_NOT_FOUND;
- return;
-
- still_connected:
- destroy->status = NETIF_BE_STATUS_INTERFACE_CONNECTED;
- return;
-
- destroy:
- *pnetif = netif->hash_next;
- unregister_netdev(netif->dev);
- free_netdev(netif->dev);
- destroy->status = NETIF_BE_STATUS_OKAY;
-}
-
-void netif_connect(netif_be_connect_t *connect)
-{
- domid_t domid = connect->domid;
- unsigned int handle = connect->netif_handle;
- unsigned int evtchn = connect->evtchn;
- unsigned long tx_shmem_frame = connect->tx_shmem_frame;
- unsigned long rx_shmem_frame = connect->rx_shmem_frame;
- struct vm_struct *vma;
- pgprot_t prot;
- int error;
- netif_t *netif;
-#if 0
- struct net_device *eth0_dev;
-#endif
-
- netif = netif_find_by_handle(domid, handle);
- if ( unlikely(netif == NULL) )
-------------------------------------------------------
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