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spapr: implement H_CHANGE_LOGICAL_LAN_MAC h_call 

Since kernel v4.0, linux uses H_CHANGE_LOGICAL_LAN_MAC to change lively
the MAC address of an ibmveth interface.

As QEMU doesn't implement this h_call, we can't change anymore the
MAC address of an spapr-vlan interface.

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Laurent Vivier 2016-09-01 10:10:49 +02:00 committed by David Gibson
parent a007b19b37
commit 32f5f50dad
1 changed files with 30 additions and 0 deletions
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30
hw/net/spapr_llan.c
View File

@ -106,6 +106,7 @@ typedef struct VIOsPAPRVLANDevice {
VIOsPAPRDevice sdev;
NICConf nicconf;
NICState *nic;
MACAddr perm_mac;
bool isopen;
hwaddr buf_list;
uint32_t add_buf_ptr, use_buf_ptr, rx_bufs;
@ -316,6 +317,10 @@ static void spapr_vlan_reset(VIOsPAPRDevice *sdev)
spapr_vlan_reset_rx_pool(dev->rx_pool[i]);
}
}
memcpy(&dev->nicconf.macaddr.a, &dev->perm_mac.a,
sizeof(dev->nicconf.macaddr.a));
qemu_format_nic_info_str(qemu_get_queue(dev->nic), dev->nicconf.macaddr.a);
}
static void spapr_vlan_realize(VIOsPAPRDevice *sdev, Error **errp)
@ -324,6 +329,8 @@ static void spapr_vlan_realize(VIOsPAPRDevice *sdev, Error **errp)
qemu_macaddr_default_if_unset(&dev->nicconf.macaddr);
memcpy(&dev->perm_mac.a, &dev->nicconf.macaddr.a, sizeof(dev->perm_mac.a));
dev->nic = qemu_new_nic(&net_spapr_vlan_info, &dev->nicconf,
object_get_typename(OBJECT(sdev)), sdev->qdev.id, dev);
qemu_format_nic_info_str(qemu_get_queue(dev->nic), dev->nicconf.macaddr.a);
@ -756,6 +763,27 @@ static target_ulong h_multicast_ctrl(PowerPCCPU *cpu, sPAPRMachineState *spapr,
return H_SUCCESS;
}
static target_ulong h_change_logical_lan_mac(PowerPCCPU *cpu,
sPAPRMachineState *spapr,
target_ulong opcode,
target_ulong *args)
{
target_ulong reg = args[0];
target_ulong macaddr = args[1];
VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
int i;
for (i = 0; i < ETH_ALEN; i++) {
dev->nicconf.macaddr.a[ETH_ALEN - i - 1] = macaddr & 0xff;
macaddr >>= 8;
}
qemu_format_nic_info_str(qemu_get_queue(dev->nic), dev->nicconf.macaddr.a);
return H_SUCCESS;
}
static Property spapr_vlan_properties[] = {
DEFINE_SPAPR_PROPERTIES(VIOsPAPRVLANDevice, sdev),
DEFINE_NIC_PROPERTIES(VIOsPAPRVLANDevice, nicconf),
@ -854,6 +882,8 @@ static void spapr_vlan_register_types(void)
spapr_register_hypercall(H_ADD_LOGICAL_LAN_BUFFER,
h_add_logical_lan_buffer);
spapr_register_hypercall(H_MULTICAST_CTRL, h_multicast_ctrl);
spapr_register_hypercall(H_CHANGE_LOGICAL_LAN_MAC,
h_change_logical_lan_mac);
type_register_static(&spapr_vlan_info);
}