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[Xen-changelog] Merge http://xen.bkbits.net:8080/xen-2.0-testing.bk

To: xen-changelog@xxxxxxxxxxxxxxxxxxxxx
Subject: [Xen-changelog] Merge http://xen.bkbits.net:8080/xen-2.0-testing.bk
From: BitKeeper Bot <riel@xxxxxxxxxxx>
Date: Fri, 18 Mar 2005 11:18:23 +0000
Delivery-date: Fri, 25 Mar 2005 12:05:53 +0000
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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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