Bug Summary

File:obj-scan-build/../xen/net.c
Location:line 384, column 4
Description:Value stored to 'i' is never read

Annotated Source Code

1/*
2 * Copyright (C) 2006-2009, 2011 Free Software Foundation
3 *
4 * This program is free software ; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation ; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY ; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with the program ; if not, write to the Free Software
16 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
17 */
18
19#include <sys/types.h>
20#include <mach/mig_errors.h>
21#include <kern/kalloc.h>
22#include <ipc/ipc_port.h>
23#include <ipc/ipc_space.h>
24#include <vm/vm_kern.h>
25#include <device/device_types.h>
26#include <device/device_port.h>
27#include <device/if_hdr.h>
28#include <device/if_ether.h>
29#include <device/net_io.h>
30#include <device/device_reply.user.h>
31#include <device/device_emul.h>
32#include <intel/pmap.h>
33#include <xen/public/io/netif.h>
34#include <xen/public/memory.h>
35#include <string.h>
36#include <util/atoi.h>
37#include "evt.h"
38#include "store.h"
39#include "net.h"
40#include "grant.h"
41#include "ring.h"
42#include "time.h"
43#include "xen.h"
44
45/* Hypervisor part */
46
47#define ADDRESS_SIZE6 6
48#define WINDOW(((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0])) & 0xffff0000) ? (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
) & 0x0000ff00) ? ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x000000f0) ? (
((((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>16)>>8)>>4) & 0x0000000c
) ? ((((((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4)>>2) &
0x00000002) ? 0x2 : (((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4)>>2) &
0x1))<<2 : (((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4) & 0x00000002
) ? 0x2 : ((((((((1 << 12)) - (long)((netif_rx_sring_t*
)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4) & 0x1))
)<<4 : ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x0000000c) ? (
((((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>16)>>8)>>2) & 0x00000002
) ? 0x2 : ((((((((1 << 12)) - (long)((netif_rx_sring_t*
)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>2) & 0x1))
<<2 : ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x00000002) ? 0x2
: (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x1))))<<
8 : (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16) & 0x000000f0) ? ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4) & 0x0000000c) ? (((((((((1 << 12)) - (long
)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t*)
0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16)>>
4)>>2) & 0x00000002) ? 0x2 : ((((((((1 << 12)
) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4)>>2) & 0x1))<<2 : ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4) & 0x00000002) ? 0x2 : (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4) & 0x1)))<<4 : (((((((1 << 12)) - (
long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
) & 0x0000000c) ? ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>2) & 0x00000002) ? 0x2
: (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>2) & 0x1))<<2 :
(((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>16) & 0x00000002) ? 0x2 : ((((((
1 << 12)) - (long)((netif_rx_sring_t*)0)->ring + (long
)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*)0)->
ring[0]))>>16) & 0x1)))))<<16 : ((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x0000ff00
) ? (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>8) & 0x000000f0) ? ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4) & 0x0000000c) ? (((((((((1 << 12)) - (long
)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t*)
0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)>>
4)>>2) & 0x00000002) ? 0x2 : ((((((((1 << 12)
) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4)>>2) & 0x1))<<2 : ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4) & 0x00000002) ? 0x2 : (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4) & 0x1)))<<4 : (((((((1 << 12)) - (
long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
& 0x0000000c) ? ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>8)>>2) & 0x00000002) ? 0x2
: (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>8)>>2) & 0x1))<<2 :
(((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>8) & 0x00000002) ? 0x2 : ((((((1
<< 12)) - (long)((netif_rx_sring_t*)0)->ring + (long
)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*)0)->
ring[0]))>>8) & 0x1))))<<8 : ((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x000000f0
) ? (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>4) & 0x0000000c) ? ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>4)
>>2) & 0x00000002) ? 0x2 : (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>4)
>>2) & 0x1))<<2 : (((((((1 << 12)) - (long
)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t*)
0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>4) &
0x00000002) ? 0x2 : ((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>4) & 0x1)))<<4 : ((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x0000000c
) ? (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>2) & 0x00000002) ? 0x2 : ((((((
1 << 12)) - (long)((netif_rx_sring_t*)0)->ring + (long
)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*)0)->
ring[0]))>>2) & 0x1))<<2 : ((((((1 << 12
)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x00000002
) ? 0x2 : (((((1 << 12)) - (long)((netif_rx_sring_t*)0)
->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0])) & 0x1))))))) __RING_SIZE((netif_rx_sring_t*)0, PAGE_SIZE)(((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0])) & 0xffff0000) ? (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
) & 0x0000ff00) ? ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x000000f0) ? (
((((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>16)>>8)>>4) & 0x0000000c
) ? ((((((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4)>>2) &
0x00000002) ? 0x2 : (((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4)>>2) &
0x1))<<2 : (((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4) & 0x00000002
) ? 0x2 : ((((((((1 << 12)) - (long)((netif_rx_sring_t*
)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4) & 0x1))
)<<4 : ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x0000000c) ? (
((((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>16)>>8)>>2) & 0x00000002
) ? 0x2 : ((((((((1 << 12)) - (long)((netif_rx_sring_t*
)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>2) & 0x1))
<<2 : ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x00000002) ? 0x2
: (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x1))))<<
8 : (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16) & 0x000000f0) ? ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4) & 0x0000000c) ? (((((((((1 << 12)) - (long
)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t*)
0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16)>>
4)>>2) & 0x00000002) ? 0x2 : ((((((((1 << 12)
) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4)>>2) & 0x1))<<2 : ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4) & 0x00000002) ? 0x2 : (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4) & 0x1)))<<4 : (((((((1 << 12)) - (
long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
) & 0x0000000c) ? ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>2) & 0x00000002) ? 0x2
: (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>2) & 0x1))<<2 :
(((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>16) & 0x00000002) ? 0x2 : ((((((
1 << 12)) - (long)((netif_rx_sring_t*)0)->ring + (long
)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*)0)->
ring[0]))>>16) & 0x1)))))<<16 : ((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x0000ff00
) ? (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>8) & 0x000000f0) ? ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4) & 0x0000000c) ? (((((((((1 << 12)) - (long
)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t*)
0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)>>
4)>>2) & 0x00000002) ? 0x2 : ((((((((1 << 12)
) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4)>>2) & 0x1))<<2 : ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4) & 0x00000002) ? 0x2 : (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4) & 0x1)))<<4 : (((((((1 << 12)) - (
long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
& 0x0000000c) ? ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>8)>>2) & 0x00000002) ? 0x2
: (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>8)>>2) & 0x1))<<2 :
(((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>8) & 0x00000002) ? 0x2 : ((((((1
<< 12)) - (long)((netif_rx_sring_t*)0)->ring + (long
)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*)0)->
ring[0]))>>8) & 0x1))))<<8 : ((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x000000f0
) ? (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>4) & 0x0000000c) ? ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>4)
>>2) & 0x00000002) ? 0x2 : (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>4)
>>2) & 0x1))<<2 : (((((((1 << 12)) - (long
)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t*)
0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>4) &
0x00000002) ? 0x2 : ((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>4) & 0x1)))<<4 : ((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x0000000c
) ? (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>2) & 0x00000002) ? 0x2 : ((((((
1 << 12)) - (long)((netif_rx_sring_t*)0)->ring + (long
)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*)0)->
ring[0]))>>2) & 0x1))<<2 : ((((((1 << 12
)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x00000002
) ? 0x2 : (((((1 << 12)) - (long)((netif_rx_sring_t*)0)
->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0])) & 0x1)))))))
49
50/* Are we paranoid enough to not leak anything to backend? */
51static const int paranoia = 0;
52
53struct net_data {
54 struct device device;
55 struct ifnet ifnet;
56 int open_count;
57 char *backend;
58 domid_t domid;
59 char *vif;
60 u_char address[ADDRESS_SIZE6];
61 int handle;
62 ipc_port_t port;
63 netif_tx_front_ring_t tx;
64 netif_rx_front_ring_t rx;
65 void *rx_buf[WINDOW(((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0])) & 0xffff0000) ? (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
) & 0x0000ff00) ? ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x000000f0) ? (
((((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>16)>>8)>>4) & 0x0000000c
) ? ((((((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4)>>2) &
0x00000002) ? 0x2 : (((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4)>>2) &
0x1))<<2 : (((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4) & 0x00000002
) ? 0x2 : ((((((((1 << 12)) - (long)((netif_rx_sring_t*
)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4) & 0x1))
)<<4 : ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x0000000c) ? (
((((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>16)>>8)>>2) & 0x00000002
) ? 0x2 : ((((((((1 << 12)) - (long)((netif_rx_sring_t*
)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>2) & 0x1))
<<2 : ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x00000002) ? 0x2
: (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x1))))<<
8 : (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16) & 0x000000f0) ? ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4) & 0x0000000c) ? (((((((((1 << 12)) - (long
)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t*)
0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16)>>
4)>>2) & 0x00000002) ? 0x2 : ((((((((1 << 12)
) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4)>>2) & 0x1))<<2 : ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4) & 0x00000002) ? 0x2 : (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4) & 0x1)))<<4 : (((((((1 << 12)) - (
long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
) & 0x0000000c) ? ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>2) & 0x00000002) ? 0x2
: (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>2) & 0x1))<<2 :
(((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>16) & 0x00000002) ? 0x2 : ((((((
1 << 12)) - (long)((netif_rx_sring_t*)0)->ring + (long
)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*)0)->
ring[0]))>>16) & 0x1)))))<<16 : ((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x0000ff00
) ? (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>8) & 0x000000f0) ? ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4) & 0x0000000c) ? (((((((((1 << 12)) - (long
)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t*)
0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)>>
4)>>2) & 0x00000002) ? 0x2 : ((((((((1 << 12)
) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4)>>2) & 0x1))<<2 : ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4) & 0x00000002) ? 0x2 : (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4) & 0x1)))<<4 : (((((((1 << 12)) - (
long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
& 0x0000000c) ? ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>8)>>2) & 0x00000002) ? 0x2
: (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>8)>>2) & 0x1))<<2 :
(((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>8) & 0x00000002) ? 0x2 : ((((((1
<< 12)) - (long)((netif_rx_sring_t*)0)->ring + (long
)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*)0)->
ring[0]))>>8) & 0x1))))<<8 : ((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x000000f0
) ? (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>4) & 0x0000000c) ? ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>4)
>>2) & 0x00000002) ? 0x2 : (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>4)
>>2) & 0x1))<<2 : (((((((1 << 12)) - (long
)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t*)
0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>4) &
0x00000002) ? 0x2 : ((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>4) & 0x1)))<<4 : ((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x0000000c
) ? (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>2) & 0x00000002) ? 0x2 : ((((((
1 << 12)) - (long)((netif_rx_sring_t*)0)->ring + (long
)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*)0)->
ring[0]))>>2) & 0x1))<<2 : ((((((1 << 12
)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x00000002
) ? 0x2 : (((((1 << 12)) - (long)((netif_rx_sring_t*)0)
->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0])) & 0x1)))))))];
66 grant_ref_t rx_buf_gnt[WINDOW(((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0])) & 0xffff0000) ? (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
) & 0x0000ff00) ? ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x000000f0) ? (
((((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>16)>>8)>>4) & 0x0000000c
) ? ((((((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4)>>2) &
0x00000002) ? 0x2 : (((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4)>>2) &
0x1))<<2 : (((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4) & 0x00000002
) ? 0x2 : ((((((((1 << 12)) - (long)((netif_rx_sring_t*
)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4) & 0x1))
)<<4 : ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x0000000c) ? (
((((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>16)>>8)>>2) & 0x00000002
) ? 0x2 : ((((((((1 << 12)) - (long)((netif_rx_sring_t*
)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>2) & 0x1))
<<2 : ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x00000002) ? 0x2
: (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x1))))<<
8 : (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16) & 0x000000f0) ? ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4) & 0x0000000c) ? (((((((((1 << 12)) - (long
)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t*)
0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16)>>
4)>>2) & 0x00000002) ? 0x2 : ((((((((1 << 12)
) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4)>>2) & 0x1))<<2 : ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4) & 0x00000002) ? 0x2 : (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4) & 0x1)))<<4 : (((((((1 << 12)) - (
long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
) & 0x0000000c) ? ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>2) & 0x00000002) ? 0x2
: (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>2) & 0x1))<<2 :
(((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>16) & 0x00000002) ? 0x2 : ((((((
1 << 12)) - (long)((netif_rx_sring_t*)0)->ring + (long
)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*)0)->
ring[0]))>>16) & 0x1)))))<<16 : ((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x0000ff00
) ? (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>8) & 0x000000f0) ? ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4) & 0x0000000c) ? (((((((((1 << 12)) - (long
)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t*)
0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)>>
4)>>2) & 0x00000002) ? 0x2 : ((((((((1 << 12)
) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4)>>2) & 0x1))<<2 : ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4) & 0x00000002) ? 0x2 : (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4) & 0x1)))<<4 : (((((((1 << 12)) - (
long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
& 0x0000000c) ? ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>8)>>2) & 0x00000002) ? 0x2
: (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>8)>>2) & 0x1))<<2 :
(((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>8) & 0x00000002) ? 0x2 : ((((((1
<< 12)) - (long)((netif_rx_sring_t*)0)->ring + (long
)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*)0)->
ring[0]))>>8) & 0x1))))<<8 : ((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x000000f0
) ? (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>4) & 0x0000000c) ? ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>4)
>>2) & 0x00000002) ? 0x2 : (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>4)
>>2) & 0x1))<<2 : (((((((1 << 12)) - (long
)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t*)
0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>4) &
0x00000002) ? 0x2 : ((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>4) & 0x1)))<<4 : ((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x0000000c
) ? (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>2) & 0x00000002) ? 0x2 : ((((((
1 << 12)) - (long)((netif_rx_sring_t*)0)->ring + (long
)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*)0)->
ring[0]))>>2) & 0x1))<<2 : ((((((1 << 12
)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x00000002
) ? 0x2 : (((((1 << 12)) - (long)((netif_rx_sring_t*)0)
->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0])) & 0x1)))))))];
67 unsigned long rx_buf_pfn[WINDOW(((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0])) & 0xffff0000) ? (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
) & 0x0000ff00) ? ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x000000f0) ? (
((((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>16)>>8)>>4) & 0x0000000c
) ? ((((((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4)>>2) &
0x00000002) ? 0x2 : (((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4)>>2) &
0x1))<<2 : (((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4) & 0x00000002
) ? 0x2 : ((((((((1 << 12)) - (long)((netif_rx_sring_t*
)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4) & 0x1))
)<<4 : ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x0000000c) ? (
((((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>16)>>8)>>2) & 0x00000002
) ? 0x2 : ((((((((1 << 12)) - (long)((netif_rx_sring_t*
)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>2) & 0x1))
<<2 : ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x00000002) ? 0x2
: (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x1))))<<
8 : (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16) & 0x000000f0) ? ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4) & 0x0000000c) ? (((((((((1 << 12)) - (long
)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t*)
0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16)>>
4)>>2) & 0x00000002) ? 0x2 : ((((((((1 << 12)
) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4)>>2) & 0x1))<<2 : ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4) & 0x00000002) ? 0x2 : (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4) & 0x1)))<<4 : (((((((1 << 12)) - (
long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
) & 0x0000000c) ? ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>2) & 0x00000002) ? 0x2
: (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>2) & 0x1))<<2 :
(((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>16) & 0x00000002) ? 0x2 : ((((((
1 << 12)) - (long)((netif_rx_sring_t*)0)->ring + (long
)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*)0)->
ring[0]))>>16) & 0x1)))))<<16 : ((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x0000ff00
) ? (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>8) & 0x000000f0) ? ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4) & 0x0000000c) ? (((((((((1 << 12)) - (long
)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t*)
0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)>>
4)>>2) & 0x00000002) ? 0x2 : ((((((((1 << 12)
) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4)>>2) & 0x1))<<2 : ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4) & 0x00000002) ? 0x2 : (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4) & 0x1)))<<4 : (((((((1 << 12)) - (
long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
& 0x0000000c) ? ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>8)>>2) & 0x00000002) ? 0x2
: (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>8)>>2) & 0x1))<<2 :
(((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>8) & 0x00000002) ? 0x2 : ((((((1
<< 12)) - (long)((netif_rx_sring_t*)0)->ring + (long
)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*)0)->
ring[0]))>>8) & 0x1))))<<8 : ((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x000000f0
) ? (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>4) & 0x0000000c) ? ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>4)
>>2) & 0x00000002) ? 0x2 : (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>4)
>>2) & 0x1))<<2 : (((((((1 << 12)) - (long
)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t*)
0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>4) &
0x00000002) ? 0x2 : ((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>4) & 0x1)))<<4 : ((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x0000000c
) ? (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>2) & 0x00000002) ? 0x2 : ((((((
1 << 12)) - (long)((netif_rx_sring_t*)0)->ring + (long
)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*)0)->
ring[0]))>>2) & 0x1))<<2 : ((((((1 << 12
)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x00000002
) ? 0x2 : (((((1 << 12)) - (long)((netif_rx_sring_t*)0)
->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0])) & 0x1)))))))];
68 int rx_copy;
69 evtchn_port_t evt;
70 simple_lock_data_t lock;
71 simple_lock_data_t pushlock;
72};
73
74static int n_vifs;
75static struct net_data *vif_data;
76
77struct device_emulation_ops hyp_net_emulation_ops;
78
79int hextoi(char *cp, int *nump)
80{
81 int number;
82 char *original;
83 char c;
84
85 original = cp;
86 for (number = 0, c = *cp | 0x20; (('0' <= c) && (c <= '9')) || (('a' <= c) && (c <= 'f')); c = *(++cp)) {
87 number *= 16;
88 if (c <= '9')
89 number += c - '0';
90 else
91 number += c - 'a' + 10;
92 }
93 if (original == cp)
94 *nump = -1;
95 else
96 *nump = number;
97 return(cp - original);
98}
99
100static void enqueue_rx_buf(struct net_data *nd, int number) {
101 unsigned reqn = nd->rx.req_prod_pvt++;
102 netif_rx_request_t *req = RING_GET_REQUEST(&nd->rx, reqn)(&((&nd->rx)->sring->ring[((reqn) & (((&
nd->rx)->nr_ents) - 1))].req));
103 grant_ref_t gref;
104
105 assert(number < WINDOW)({ if (!(number < (((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0])) & 0xffff0000) ? (((((((1 << 12))
- (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
) & 0x0000ff00) ? ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x000000f0) ? (
((((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>16)>>8)>>4) & 0x0000000c
) ? ((((((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4)>>2) &
0x00000002) ? 0x2 : (((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4)>>2) &
0x1))<<2 : (((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4) & 0x00000002
) ? 0x2 : ((((((((1 << 12)) - (long)((netif_rx_sring_t*
)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4) & 0x1))
)<<4 : ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x0000000c) ? (
((((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>16)>>8)>>2) & 0x00000002
) ? 0x2 : ((((((((1 << 12)) - (long)((netif_rx_sring_t*
)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>2) & 0x1))
<<2 : ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x00000002) ? 0x2
: (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x1))))<<
8 : (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16) & 0x000000f0) ? ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4) & 0x0000000c) ? (((((((((1 << 12)) - (long
)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t*)
0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16)>>
4)>>2) & 0x00000002) ? 0x2 : ((((((((1 << 12)
) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4)>>2) & 0x1))<<2 : ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4) & 0x00000002) ? 0x2 : (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4) & 0x1)))<<4 : (((((((1 << 12)) - (
long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
) & 0x0000000c) ? ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>2) & 0x00000002) ? 0x2
: (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>2) & 0x1))<<2 :
(((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>16) & 0x00000002) ? 0x2 : ((((((
1 << 12)) - (long)((netif_rx_sring_t*)0)->ring + (long
)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*)0)->
ring[0]))>>16) & 0x1)))))<<16 : ((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x0000ff00
) ? (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>8) & 0x000000f0) ? ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4) & 0x0000000c) ? (((((((((1 << 12)) - (long
)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t*)
0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)>>
4)>>2) & 0x00000002) ? 0x2 : ((((((((1 << 12)
) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4)>>2) & 0x1))<<2 : ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4) & 0x00000002) ? 0x2 : (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4) & 0x1)))<<4 : (((((((1 << 12)) - (
long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
& 0x0000000c) ? ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>8)>>2) & 0x00000002) ? 0x2
: (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>8)>>2) & 0x1))<<2 :
(((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>8) & 0x00000002) ? 0x2 : ((((((1
<< 12)) - (long)((netif_rx_sring_t*)0)->ring + (long
)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*)0)->
ring[0]))>>8) & 0x1))))<<8 : ((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x000000f0
) ? (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>4) & 0x0000000c) ? ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>4)
>>2) & 0x00000002) ? 0x2 : (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>4)
>>2) & 0x1))<<2 : (((((((1 << 12)) - (long
)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t*)
0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>4) &
0x00000002) ? 0x2 : ((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>4) & 0x1)))<<4 : ((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x0000000c
) ? (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>2) & 0x00000002) ? 0x2 : ((((((
1 << 12)) - (long)((netif_rx_sring_t*)0)->ring + (long
)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*)0)->
ring[0]))>>2) & 0x1))<<2 : ((((((1 << 12
)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x00000002
) ? 0x2 : (((((1 << 12)) - (long)((netif_rx_sring_t*)0)
->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0])) & 0x1))))))))) Assert("number < WINDOW"
, "../xen/net.c", 105); });
106
107 req->id = number;
108 if (nd->rx_copy) {
109 /* Let domD write the data */
110 gref = hyp_grant_give(nd->domid, nd->rx_buf_pfn[number], 0);
111 } else {
112 /* Accept pages from domD */
113 gref = hyp_grant_accept_transfer(nd->domid, nd->rx_buf_pfn[number]);
114 /* give back page */
115 hyp_free_page(nd->rx_buf_pfn[number], nd->rx_buf[number]);
116 }
117
118 req->gref = nd->rx_buf_gnt[number] = gref;
119}
120
121static int recompute_checksum(void *data, int len) {
122 unsigned16_t *header16 = data;
123 unsigned8_t *header8 = data;
124 unsigned length, i;
125 unsigned32_t checksum = 0;
126
127 /* IPv4 header length */
128 length = (header8[0] & 0xf) * 4;
129 if (length < 20)
130 /* Too small for an IP header16 */
131 return -1;
132 if (length > len)
133 /* Does not fit in the ethernet frame */
134 return -1;
135
136 /* Compute IP header checksum */
137 header16[5] = 0;
138 for (i = 0; i < length/2; i++)
139 checksum += ntohs(header16[i]);
140
141 while (checksum >> 16)
142 checksum = (checksum & 0xffff) + (checksum >> 16);
143
144 header16[5] = htons(~checksum);
145
146 if (header8[9] == 6) {
147 /* Need to fix TCP checksum as well */
148 unsigned16_t *tcp_header16 = header16 + length/2;
149 unsigned8_t *tcp_header8 = header8 + length;
150 unsigned tcp_length = ntohs(header16[1]) - length;
151
152 /* Pseudo IP header */
153 checksum = ntohs(header16[6]) + ntohs(header16[7]) +
154 ntohs(header16[8]) + ntohs(header16[9]) +
155 header8[9] + tcp_length;
156
157 tcp_header16[8] = 0;
158 for (i = 0; i < tcp_length / 2; i++)
159 checksum += ntohs(tcp_header16[i]);
160 if (tcp_length & 1)
161 checksum += tcp_header8[tcp_length-1] << 8;
162
163 while (checksum >> 16)
164 checksum = (checksum & 0xffff) + (checksum >> 16);
165
166 tcp_header16[8] = htons(~checksum);
167 } else if (header8[9] == 17) {
168 /* Drop any bogus checksum */
169 unsigned16_t *udp_header16 = header16 + length/2;
170 udp_header16[3] = 0;
171 }
172
173 return 0;
174}
175
176static void hyp_net_intr(int unit) {
177 ipc_kmsg_t kmsg;
178 struct ether_header *eh;
179 struct packet_header *ph;
180 netif_rx_response_t *rx_rsp;
181 netif_tx_response_t *tx_rsp;
182 void *data;
183 int len, more;
184 struct net_data *nd = &vif_data[unit];
185
186 simple_lock(&nd->lock);
187 if ((nd->rx.sring->rsp_prod - nd->rx.rsp_cons) >= (WINDOW(((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0])) & 0xffff0000) ? (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
) & 0x0000ff00) ? ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x000000f0) ? (
((((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>16)>>8)>>4) & 0x0000000c
) ? ((((((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4)>>2) &
0x00000002) ? 0x2 : (((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4)>>2) &
0x1))<<2 : (((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4) & 0x00000002
) ? 0x2 : ((((((((1 << 12)) - (long)((netif_rx_sring_t*
)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4) & 0x1))
)<<4 : ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x0000000c) ? (
((((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>16)>>8)>>2) & 0x00000002
) ? 0x2 : ((((((((1 << 12)) - (long)((netif_rx_sring_t*
)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>2) & 0x1))
<<2 : ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x00000002) ? 0x2
: (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x1))))<<
8 : (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16) & 0x000000f0) ? ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4) & 0x0000000c) ? (((((((((1 << 12)) - (long
)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t*)
0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16)>>
4)>>2) & 0x00000002) ? 0x2 : ((((((((1 << 12)
) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4)>>2) & 0x1))<<2 : ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4) & 0x00000002) ? 0x2 : (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4) & 0x1)))<<4 : (((((((1 << 12)) - (
long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
) & 0x0000000c) ? ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>2) & 0x00000002) ? 0x2
: (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>2) & 0x1))<<2 :
(((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>16) & 0x00000002) ? 0x2 : ((((((
1 << 12)) - (long)((netif_rx_sring_t*)0)->ring + (long
)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*)0)->
ring[0]))>>16) & 0x1)))))<<16 : ((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x0000ff00
) ? (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>8) & 0x000000f0) ? ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4) & 0x0000000c) ? (((((((((1 << 12)) - (long
)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t*)
0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)>>
4)>>2) & 0x00000002) ? 0x2 : ((((((((1 << 12)
) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4)>>2) & 0x1))<<2 : ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4) & 0x00000002) ? 0x2 : (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4) & 0x1)))<<4 : (((((((1 << 12)) - (
long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
& 0x0000000c) ? ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>8)>>2) & 0x00000002) ? 0x2
: (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>8)>>2) & 0x1))<<2 :
(((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>8) & 0x00000002) ? 0x2 : ((((((1
<< 12)) - (long)((netif_rx_sring_t*)0)->ring + (long
)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*)0)->
ring[0]))>>8) & 0x1))))<<8 : ((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x000000f0
) ? (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>4) & 0x0000000c) ? ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>4)
>>2) & 0x00000002) ? 0x2 : (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>4)
>>2) & 0x1))<<2 : (((((((1 << 12)) - (long
)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t*)
0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>4) &
0x00000002) ? 0x2 : ((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>4) & 0x1)))<<4 : ((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x0000000c
) ? (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>2) & 0x00000002) ? 0x2 : ((((((
1 << 12)) - (long)((netif_rx_sring_t*)0)->ring + (long
)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*)0)->
ring[0]))>>2) & 0x1))<<2 : ((((((1 << 12
)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x00000002
) ? 0x2 : (((((1 << 12)) - (long)((netif_rx_sring_t*)0)
->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0])) & 0x1)))))))*3)/4)
188 printf("window %ld a bit small!\n", WINDOW(((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0])) & 0xffff0000) ? (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
) & 0x0000ff00) ? ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x000000f0) ? (
((((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>16)>>8)>>4) & 0x0000000c
) ? ((((((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4)>>2) &
0x00000002) ? 0x2 : (((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4)>>2) &
0x1))<<2 : (((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4) & 0x00000002
) ? 0x2 : ((((((((1 << 12)) - (long)((netif_rx_sring_t*
)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4) & 0x1))
)<<4 : ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x0000000c) ? (
((((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>16)>>8)>>2) & 0x00000002
) ? 0x2 : ((((((((1 << 12)) - (long)((netif_rx_sring_t*
)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>2) & 0x1))
<<2 : ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x00000002) ? 0x2
: (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x1))))<<
8 : (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16) & 0x000000f0) ? ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4) & 0x0000000c) ? (((((((((1 << 12)) - (long
)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t*)
0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16)>>
4)>>2) & 0x00000002) ? 0x2 : ((((((((1 << 12)
) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4)>>2) & 0x1))<<2 : ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4) & 0x00000002) ? 0x2 : (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4) & 0x1)))<<4 : (((((((1 << 12)) - (
long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
) & 0x0000000c) ? ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>2) & 0x00000002) ? 0x2
: (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>2) & 0x1))<<2 :
(((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>16) & 0x00000002) ? 0x2 : ((((((
1 << 12)) - (long)((netif_rx_sring_t*)0)->ring + (long
)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*)0)->
ring[0]))>>16) & 0x1)))))<<16 : ((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x0000ff00
) ? (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>8) & 0x000000f0) ? ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4) & 0x0000000c) ? (((((((((1 << 12)) - (long
)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t*)
0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)>>
4)>>2) & 0x00000002) ? 0x2 : ((((((((1 << 12)
) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4)>>2) & 0x1))<<2 : ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4) & 0x00000002) ? 0x2 : (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4) & 0x1)))<<4 : (((((((1 << 12)) - (
long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
& 0x0000000c) ? ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>8)>>2) & 0x00000002) ? 0x2
: (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>8)>>2) & 0x1))<<2 :
(((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>8) & 0x00000002) ? 0x2 : ((((((1
<< 12)) - (long)((netif_rx_sring_t*)0)->ring + (long
)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*)0)->
ring[0]))>>8) & 0x1))))<<8 : ((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x000000f0
) ? (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>4) & 0x0000000c) ? ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>4)
>>2) & 0x00000002) ? 0x2 : (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>4)
>>2) & 0x1))<<2 : (((((((1 << 12)) - (long
)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t*)
0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>4) &
0x00000002) ? 0x2 : ((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>4) & 0x1)))<<4 : ((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x0000000c
) ? (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>2) & 0x00000002) ? 0x2 : ((((((
1 << 12)) - (long)((netif_rx_sring_t*)0)->ring + (long
)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*)0)->
ring[0]))>>2) & 0x1))<<2 : ((((((1 << 12
)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x00000002
) ? 0x2 : (((((1 << 12)) - (long)((netif_rx_sring_t*)0)
->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0])) & 0x1))))))));
189
190 more = RING_HAS_UNCONSUMED_RESPONSES(&nd->rx)((&nd->rx)->sring->rsp_prod - (&nd->rx)->
rsp_cons);
191 while (more) {
192 rmb()__asm__ __volatile__("lock; addl $0,0(%esp)"); /* make sure we see responses */
193 rx_rsp = RING_GET_RESPONSE(&nd->rx, nd->rx.rsp_cons++)(&((&nd->rx)->sring->ring[((nd->rx.rsp_cons
++) & (((&nd->rx)->nr_ents) - 1))].rsp));
194
195 unsigned number = rx_rsp->id;
196 assert(number < WINDOW)({ if (!(number < (((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0])) & 0xffff0000) ? (((((((1 << 12))
- (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
) & 0x0000ff00) ? ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x000000f0) ? (
((((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>16)>>8)>>4) & 0x0000000c
) ? ((((((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4)>>2) &
0x00000002) ? 0x2 : (((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4)>>2) &
0x1))<<2 : (((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4) & 0x00000002
) ? 0x2 : ((((((((1 << 12)) - (long)((netif_rx_sring_t*
)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4) & 0x1))
)<<4 : ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x0000000c) ? (
((((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>16)>>8)>>2) & 0x00000002
) ? 0x2 : ((((((((1 << 12)) - (long)((netif_rx_sring_t*
)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>2) & 0x1))
<<2 : ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x00000002) ? 0x2
: (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x1))))<<
8 : (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16) & 0x000000f0) ? ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4) & 0x0000000c) ? (((((((((1 << 12)) - (long
)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t*)
0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16)>>
4)>>2) & 0x00000002) ? 0x2 : ((((((((1 << 12)
) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4)>>2) & 0x1))<<2 : ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4) & 0x00000002) ? 0x2 : (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4) & 0x1)))<<4 : (((((((1 << 12)) - (
long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
) & 0x0000000c) ? ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>2) & 0x00000002) ? 0x2
: (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>2) & 0x1))<<2 :
(((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>16) & 0x00000002) ? 0x2 : ((((((
1 << 12)) - (long)((netif_rx_sring_t*)0)->ring + (long
)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*)0)->
ring[0]))>>16) & 0x1)))))<<16 : ((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x0000ff00
) ? (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>8) & 0x000000f0) ? ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4) & 0x0000000c) ? (((((((((1 << 12)) - (long
)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t*)
0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)>>
4)>>2) & 0x00000002) ? 0x2 : ((((((((1 << 12)
) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4)>>2) & 0x1))<<2 : ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4) & 0x00000002) ? 0x2 : (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4) & 0x1)))<<4 : (((((((1 << 12)) - (
long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
& 0x0000000c) ? ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>8)>>2) & 0x00000002) ? 0x2
: (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>8)>>2) & 0x1))<<2 :
(((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>8) & 0x00000002) ? 0x2 : ((((((1
<< 12)) - (long)((netif_rx_sring_t*)0)->ring + (long
)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*)0)->
ring[0]))>>8) & 0x1))))<<8 : ((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x000000f0
) ? (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>4) & 0x0000000c) ? ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>4)
>>2) & 0x00000002) ? 0x2 : (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>4)
>>2) & 0x1))<<2 : (((((((1 << 12)) - (long
)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t*)
0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>4) &
0x00000002) ? 0x2 : ((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>4) & 0x1)))<<4 : ((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x0000000c
) ? (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>2) & 0x00000002) ? 0x2 : ((((((
1 << 12)) - (long)((netif_rx_sring_t*)0)->ring + (long
)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*)0)->
ring[0]))>>2) & 0x1))<<2 : ((((((1 << 12
)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x00000002
) ? 0x2 : (((((1 << 12)) - (long)((netif_rx_sring_t*)0)
->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0])) & 0x1))))))))) Assert("number < WINDOW"
, "../xen/net.c", 196); });
197 if (nd->rx_copy) {
198 hyp_grant_takeback(nd->rx_buf_gnt[number]);
199 } else {
200 unsigned long mfn = hyp_grant_finish_transfer(nd->rx_buf_gnt[number]);
201#ifdef MACH_PSEUDO_PHYS
202 mfn_list[nd->rx_buf_pfn[number]] = mfn;
203#endif /* MACH_PSEUDO_PHYS */
204 pmap_map_mfn(nd->rx_buf[number], mfn);
205 }
206
207 kmsg = net_kmsg_get();
208 if (!kmsg)
209 /* gasp! Drop */
210 goto drop;
211
212 if (rx_rsp->status <= 0)
213 switch (rx_rsp->status) {
214 case NETIF_RSP_DROPPED-2:
215 printf("Packet dropped\n");
216 goto drop_kmsg;
217 case NETIF_RSP_ERROR-1:
218 printf("Packet error\n");
219 goto drop_kmsg;
220 case 0:
221 printf("nul packet\n");
222 goto drop_kmsg;
223 default:
224 printf("Unknown error %d\n", rx_rsp->status);
225 goto drop_kmsg;
226 }
227
228 data = nd->rx_buf[number] + rx_rsp->offset;
229 len = rx_rsp->status;
230
231 if (rx_rsp->flags & NETRXF_csum_blank(1U<<(1))) {
232 struct ether_header *ether = data;
233
234 if (!(rx_rsp->flags & NETRXF_data_validated(1U<<(0)))) {
235 printf("packet with no checksum and not validated, dropping it\n");
236 goto drop_kmsg;
237 }
238
239 /* TODO: rather tell pfinet to ignore checksums */
240
241 if (ntohs(ether->ether_type) != 0x0800) {
242 printf("packet with no checksum and not IPv4, dropping it\n");
243 goto drop_kmsg;
244 }
245
246 if (recompute_checksum(data + sizeof(*ether), len - sizeof(*ether)))
247 goto drop_kmsg;
248 }
249
250 eh = (void*) (net_kmsg(kmsg)((net_rcv_msg_t)&(kmsg)->ikm_header)->header);
251 ph = (void*) (net_kmsg(kmsg)((net_rcv_msg_t)&(kmsg)->ikm_header)->packet);
252 memcpy(eh, data, sizeof (struct ether_header));
253 memcpy(ph + 1, data + sizeof (struct ether_header), len - sizeof(struct ether_header));
254 RING_FINAL_CHECK_FOR_RESPONSES(&nd->rx, more)do { (more) = ((&nd->rx)->sring->rsp_prod - (&
nd->rx)->rsp_cons); if (more) break; (&nd->rx)->
sring->rsp_event = (&nd->rx)->rsp_cons + 1; __asm__
__volatile__("lock; addl $0,0(%esp)"); (more) = ((&nd->
rx)->sring->rsp_prod - (&nd->rx)->rsp_cons); }
while (0);
255 enqueue_rx_buf(nd, number);
256 ph->type = eh->ether_type;
257 ph->length = len - sizeof(struct ether_header) + sizeof (struct packet_header);
258
259 net_kmsg(kmsg)((net_rcv_msg_t)&(kmsg)->ikm_header)->sent = FALSE((boolean_t) 0); /* Mark packet as received. */
260
261 net_packet(&nd->ifnet, kmsg, ph->length, ethernet_priority(kmsg));
262 continue;
263
264drop_kmsg:
265 net_kmsg_put(kmsg);
266drop:
267 RING_FINAL_CHECK_FOR_RESPONSES(&nd->rx, more)do { (more) = ((&nd->rx)->sring->rsp_prod - (&
nd->rx)->rsp_cons); if (more) break; (&nd->rx)->
sring->rsp_event = (&nd->rx)->rsp_cons + 1; __asm__
__volatile__("lock; addl $0,0(%esp)"); (more) = ((&nd->
rx)->sring->rsp_prod - (&nd->rx)->rsp_cons); }
while (0);
268 enqueue_rx_buf(nd, number);
269 }
270
271 /* commit new requests */
272 int notify;
273 wmb()__asm__ __volatile__("lock; addl $0,0(%esp)"); /* make sure it sees requests */
274 RING_PUSH_REQUESTS_AND_CHECK_NOTIFY(&nd->rx, notify)do { RING_IDX __old = (&nd->rx)->sring->req_prod
; RING_IDX __new = (&nd->rx)->req_prod_pvt; __asm__
__volatile__("lock; addl $0,0(%esp)"); (&nd->rx)->
sring->req_prod = __new; __asm__ __volatile__("lock; addl $0,0(%esp)"
); (notify) = ((RING_IDX)(__new - (&nd->rx)->sring->
req_event) < (RING_IDX)(__new - __old)); } while (0);
275 if (notify)
276 hyp_event_channel_send(nd->evt);
277
278 /* Now the tx side */
279 more = RING_HAS_UNCONSUMED_RESPONSES(&nd->tx)((&nd->tx)->sring->rsp_prod - (&nd->tx)->
rsp_cons);
280 spl_t s = splsched ();
281 while (more) {
282 rmb()__asm__ __volatile__("lock; addl $0,0(%esp)"); /* make sure we see responses */
283 tx_rsp = RING_GET_RESPONSE(&nd->tx, nd->tx.rsp_cons++)(&((&nd->tx)->sring->ring[((nd->tx.rsp_cons
++) & (((&nd->tx)->nr_ents) - 1))].rsp));
284 switch (tx_rsp->status) {
285 case NETIF_RSP_DROPPED-2:
286 printf("Packet dropped\n");
287 break;
288 case NETIF_RSP_ERROR-1:
289 printf("Packet error\n");
290 break;
291 case NETIF_RSP_OKAY0:
292 break;
293 default:
294 printf("Unknown error %d\n", tx_rsp->status);
295 break;
296 }
297 thread_wakeup((event_t) hyp_grant_address(tx_rsp->id))thread_wakeup_prim(((event_t) hyp_grant_address(tx_rsp->id
)), ((boolean_t) 0), 0);
298 thread_wakeup_one(nd)thread_wakeup_prim((nd), ((boolean_t) 1), 0);
299 RING_FINAL_CHECK_FOR_RESPONSES(&nd->tx, more)do { (more) = ((&nd->tx)->sring->rsp_prod - (&
nd->tx)->rsp_cons); if (more) break; (&nd->tx)->
sring->rsp_event = (&nd->tx)->rsp_cons + 1; __asm__
__volatile__("lock; addl $0,0(%esp)"); (more) = ((&nd->
tx)->sring->rsp_prod - (&nd->tx)->rsp_cons); }
while (0);
300 }
301 splx(s);
302
303 simple_unlock(&nd->lock)((void)(&nd->lock));
304}
305
306#define VIF_PATH"device/vif" "device/vif"
307void hyp_net_init(void) {
308 char **vifs, **vif;
309 char *c;
310 int i;
311 int n;
312 int grant;
313 char port_name[10];
314 domid_t domid;
315 evtchn_port_t evt;
316 hyp_store_transaction_t t;
317 vm_offset_t addr;
318 struct net_data *nd;
319 struct ifnet *ifp;
320 netif_tx_sring_t *tx_ring;
321 netif_rx_sring_t *rx_ring;
322
323 vifs = hyp_store_ls(0, 1, VIF_PATH"device/vif");
324 if (!vifs) {
325 printf("eth: No net device (%s). Hoping you don't need any\n", hyp_store_error);
326 n_vifs = 0;
327 return;
328 }
329
330 n = 0;
331 for (vif = vifs; *vif; vif++)
332 n++;
333
334 vif_data = (void*) kalloc(n * sizeof(*vif_data));
335 if (!vif_data) {
336 printf("eth: No memory room for VIF\n");
337 n_vifs = 0;
338 return;
339 }
340 n_vifs = n;
341
342 for (n = 0; n < n_vifs; n++) {
343 nd = &vif_data[n];
344 mach_atoi((u_char *) vifs[n], &nd->handle);
345 if (nd->handle == MACH_ATOI_DEFAULT-1)
346 continue;
347
348 nd->open_count = -2;
349 nd->vif = vifs[n];
350
351 /* Get domain id of frontend driver. */
352 i = hyp_store_read_int(0, 5, VIF_PATH"device/vif", "/", vifs[n], "/", "backend-id");
353 if (i == -1)
354 panic("eth: couldn't read frontend domid of VIF %s (%s)",vifs[n], hyp_store_error);
355 nd->domid = domid = i;
356
357 do {
358 t = hyp_store_transaction_start();
359
360 /* Get a page for tx_ring */
361 if ((addr = vm_page_grab_phys_addr()) == -1)
362 panic("eth: couldn't allocate space for store tx_ring");
363 tx_ring = (void*) phystokv(addr)((vm_offset_t)(addr) + 0xC0000000UL);
364 SHARED_RING_INIT(tx_ring)do { (tx_ring)->req_prod = (tx_ring)->rsp_prod = 0; (tx_ring
)->req_event = (tx_ring)->rsp_event = 1; (void)memset((
tx_ring)->pad, 0, sizeof((tx_ring)->pad)); } while(0);
365 FRONT_RING_INIT(&nd->tx, tx_ring, PAGE_SIZE)do { (&nd->tx)->req_prod_pvt = 0; (&nd->tx)->
rsp_cons = 0; (&nd->tx)->nr_ents = (((((((1 <<
12)) - (long)(tx_ring)->ring + (long)(tx_ring)) / sizeof(
(tx_ring)->ring[0])) & 0xffff0000) ? (((((((1 <<
12)) - (long)(tx_ring)->ring + (long)(tx_ring)) / sizeof(
(tx_ring)->ring[0]))>>16) & 0x0000ff00) ? ((((((
((1 << 12)) - (long)(tx_ring)->ring + (long)(tx_ring
)) / sizeof((tx_ring)->ring[0]))>>16)>>8) &
0x000000f0) ? (((((((((1 << 12)) - (long)(tx_ring)->
ring + (long)(tx_ring)) / sizeof((tx_ring)->ring[0]))>>
16)>>8)>>4) & 0x0000000c) ? ((((((((((1 <<
12)) - (long)(tx_ring)->ring + (long)(tx_ring)) / sizeof(
(tx_ring)->ring[0]))>>16)>>8)>>4)>>
2) & 0x00000002) ? 0x2 : (((((((((1 << 12)) - (long
)(tx_ring)->ring + (long)(tx_ring)) / sizeof((tx_ring)->
ring[0]))>>16)>>8)>>4)>>2) & 0x1)
)<<2 : (((((((((1 << 12)) - (long)(tx_ring)->ring
+ (long)(tx_ring)) / sizeof((tx_ring)->ring[0]))>>16
)>>8)>>4) & 0x00000002) ? 0x2 : ((((((((1 <<
12)) - (long)(tx_ring)->ring + (long)(tx_ring)) / sizeof(
(tx_ring)->ring[0]))>>16)>>8)>>4) & 0x1
)))<<4 : ((((((((1 << 12)) - (long)(tx_ring)->
ring + (long)(tx_ring)) / sizeof((tx_ring)->ring[0]))>>
16)>>8) & 0x0000000c) ? (((((((((1 << 12)) - (
long)(tx_ring)->ring + (long)(tx_ring)) / sizeof((tx_ring)
->ring[0]))>>16)>>8)>>2) & 0x00000002
) ? 0x2 : ((((((((1 << 12)) - (long)(tx_ring)->ring +
(long)(tx_ring)) / sizeof((tx_ring)->ring[0]))>>16)
>>8)>>2) & 0x1))<<2 : ((((((((1 <<
12)) - (long)(tx_ring)->ring + (long)(tx_ring)) / sizeof(
(tx_ring)->ring[0]))>>16)>>8) & 0x00000002
) ? 0x2 : (((((((1 << 12)) - (long)(tx_ring)->ring +
(long)(tx_ring)) / sizeof((tx_ring)->ring[0]))>>16)
>>8) & 0x1))))<<8 : (((((((1 << 12)) - (
long)(tx_ring)->ring + (long)(tx_ring)) / sizeof((tx_ring)
->ring[0]))>>16) & 0x000000f0) ? ((((((((1 <<
12)) - (long)(tx_ring)->ring + (long)(tx_ring)) / sizeof(
(tx_ring)->ring[0]))>>16)>>4) & 0x0000000c
) ? (((((((((1 << 12)) - (long)(tx_ring)->ring + (long
)(tx_ring)) / sizeof((tx_ring)->ring[0]))>>16)>>
4)>>2) & 0x00000002) ? 0x2 : ((((((((1 << 12)
) - (long)(tx_ring)->ring + (long)(tx_ring)) / sizeof((tx_ring
)->ring[0]))>>16)>>4)>>2) & 0x1))<<
2 : ((((((((1 << 12)) - (long)(tx_ring)->ring + (long
)(tx_ring)) / sizeof((tx_ring)->ring[0]))>>16)>>
4) & 0x00000002) ? 0x2 : (((((((1 << 12)) - (long)(
tx_ring)->ring + (long)(tx_ring)) / sizeof((tx_ring)->ring
[0]))>>16)>>4) & 0x1)))<<4 : (((((((1 <<
12)) - (long)(tx_ring)->ring + (long)(tx_ring)) / sizeof(
(tx_ring)->ring[0]))>>16) & 0x0000000c) ? ((((((
((1 << 12)) - (long)(tx_ring)->ring + (long)(tx_ring
)) / sizeof((tx_ring)->ring[0]))>>16)>>2) &
0x00000002) ? 0x2 : (((((((1 << 12)) - (long)(tx_ring)
->ring + (long)(tx_ring)) / sizeof((tx_ring)->ring[0]))
>>16)>>2) & 0x1))<<2 : (((((((1 <<
12)) - (long)(tx_ring)->ring + (long)(tx_ring)) / sizeof(
(tx_ring)->ring[0]))>>16) & 0x00000002) ? 0x2 : (
(((((1 << 12)) - (long)(tx_ring)->ring + (long)(tx_ring
)) / sizeof((tx_ring)->ring[0]))>>16) & 0x1)))))
<<16 : ((((((1 << 12)) - (long)(tx_ring)->ring
+ (long)(tx_ring)) / sizeof((tx_ring)->ring[0])) & 0x0000ff00
) ? (((((((1 << 12)) - (long)(tx_ring)->ring + (long
)(tx_ring)) / sizeof((tx_ring)->ring[0]))>>8) & 0x000000f0
) ? ((((((((1 << 12)) - (long)(tx_ring)->ring + (long
)(tx_ring)) / sizeof((tx_ring)->ring[0]))>>8)>>
4) & 0x0000000c) ? (((((((((1 << 12)) - (long)(tx_ring
)->ring + (long)(tx_ring)) / sizeof((tx_ring)->ring[0])
)>>8)>>4)>>2) & 0x00000002) ? 0x2 : (((
(((((1 << 12)) - (long)(tx_ring)->ring + (long)(tx_ring
)) / sizeof((tx_ring)->ring[0]))>>8)>>4)>>
2) & 0x1))<<2 : ((((((((1 << 12)) - (long)(tx_ring
)->ring + (long)(tx_ring)) / sizeof((tx_ring)->ring[0])
)>>8)>>4) & 0x00000002) ? 0x2 : (((((((1 <<
12)) - (long)(tx_ring)->ring + (long)(tx_ring)) / sizeof(
(tx_ring)->ring[0]))>>8)>>4) & 0x1)))<<
4 : (((((((1 << 12)) - (long)(tx_ring)->ring + (long
)(tx_ring)) / sizeof((tx_ring)->ring[0]))>>8) & 0x0000000c
) ? ((((((((1 << 12)) - (long)(tx_ring)->ring + (long
)(tx_ring)) / sizeof((tx_ring)->ring[0]))>>8)>>
2) & 0x00000002) ? 0x2 : (((((((1 << 12)) - (long)(
tx_ring)->ring + (long)(tx_ring)) / sizeof((tx_ring)->ring
[0]))>>8)>>2) & 0x1))<<2 : (((((((1 <<
12)) - (long)(tx_ring)->ring + (long)(tx_ring)) / sizeof(
(tx_ring)->ring[0]))>>8) & 0x00000002) ? 0x2 : (
(((((1 << 12)) - (long)(tx_ring)->ring + (long)(tx_ring
)) / sizeof((tx_ring)->ring[0]))>>8) & 0x1))))<<
8 : ((((((1 << 12)) - (long)(tx_ring)->ring + (long)
(tx_ring)) / sizeof((tx_ring)->ring[0])) & 0x000000f0)
? (((((((1 << 12)) - (long)(tx_ring)->ring + (long)
(tx_ring)) / sizeof((tx_ring)->ring[0]))>>4) & 0x0000000c
) ? ((((((((1 << 12)) - (long)(tx_ring)->ring + (long
)(tx_ring)) / sizeof((tx_ring)->ring[0]))>>4)>>
2) & 0x00000002) ? 0x2 : (((((((1 << 12)) - (long)(
tx_ring)->ring + (long)(tx_ring)) / sizeof((tx_ring)->ring
[0]))>>4)>>2) & 0x1))<<2 : (((((((1 <<
12)) - (long)(tx_ring)->ring + (long)(tx_ring)) / sizeof(
(tx_ring)->ring[0]))>>4) & 0x00000002) ? 0x2 : (
(((((1 << 12)) - (long)(tx_ring)->ring + (long)(tx_ring
)) / sizeof((tx_ring)->ring[0]))>>4) & 0x1)))<<
4 : ((((((1 << 12)) - (long)(tx_ring)->ring + (long)
(tx_ring)) / sizeof((tx_ring)->ring[0])) & 0x0000000c)
? (((((((1 << 12)) - (long)(tx_ring)->ring + (long)
(tx_ring)) / sizeof((tx_ring)->ring[0]))>>2) & 0x00000002
) ? 0x2 : ((((((1 << 12)) - (long)(tx_ring)->ring + (
long)(tx_ring)) / sizeof((tx_ring)->ring[0]))>>2) &
0x1))<<2 : ((((((1 << 12)) - (long)(tx_ring)->
ring + (long)(tx_ring)) / sizeof((tx_ring)->ring[0])) &
0x00000002) ? 0x2 : (((((1 << 12)) - (long)(tx_ring)->
ring + (long)(tx_ring)) / sizeof((tx_ring)->ring[0])) &
0x1))))))); (&nd->tx)->sring = (tx_ring); } while (
0);
366 grant = hyp_grant_give(domid, atop(addr)(((vm_size_t)(addr)) >> 12), 0);
367
368 /* and give it to backend. */
369 i = sprintf(port_name, "%d", grant);
370 c = hyp_store_write(t, port_name, 5, VIF_PATH"device/vif", "/", vifs[n], "/", "tx-ring-ref");
371 if (!c)
372 panic("eth: couldn't store tx_ring reference for VIF %s (%s)", vifs[n], hyp_store_error);
373 kfree((vm_offset_t) c, strlen(c)+1);
374
375 /* Get a page for rx_ring */
376 if ((addr = vm_page_grab_phys_addr()) == -1)
377 panic("eth: couldn't allocate space for store tx_ring");
378 rx_ring = (void*) phystokv(addr)((vm_offset_t)(addr) + 0xC0000000UL);
379 SHARED_RING_INIT(rx_ring)do { (rx_ring)->req_prod = (rx_ring)->rsp_prod = 0; (rx_ring
)->req_event = (rx_ring)->rsp_event = 1; (void)memset((
rx_ring)->pad, 0, sizeof((rx_ring)->pad)); } while(0);
380 FRONT_RING_INIT(&nd->rx, rx_ring, PAGE_SIZE)do { (&nd->rx)->req_prod_pvt = 0; (&nd->rx)->
rsp_cons = 0; (&nd->rx)->nr_ents = (((((((1 <<
12)) - (long)(rx_ring)->ring + (long)(rx_ring)) / sizeof(
(rx_ring)->ring[0])) & 0xffff0000) ? (((((((1 <<
12)) - (long)(rx_ring)->ring + (long)(rx_ring)) / sizeof(
(rx_ring)->ring[0]))>>16) & 0x0000ff00) ? ((((((
((1 << 12)) - (long)(rx_ring)->ring + (long)(rx_ring
)) / sizeof((rx_ring)->ring[0]))>>16)>>8) &
0x000000f0) ? (((((((((1 << 12)) - (long)(rx_ring)->
ring + (long)(rx_ring)) / sizeof((rx_ring)->ring[0]))>>
16)>>8)>>4) & 0x0000000c) ? ((((((((((1 <<
12)) - (long)(rx_ring)->ring + (long)(rx_ring)) / sizeof(
(rx_ring)->ring[0]))>>16)>>8)>>4)>>
2) & 0x00000002) ? 0x2 : (((((((((1 << 12)) - (long
)(rx_ring)->ring + (long)(rx_ring)) / sizeof((rx_ring)->
ring[0]))>>16)>>8)>>4)>>2) & 0x1)
)<<2 : (((((((((1 << 12)) - (long)(rx_ring)->ring
+ (long)(rx_ring)) / sizeof((rx_ring)->ring[0]))>>16
)>>8)>>4) & 0x00000002) ? 0x2 : ((((((((1 <<
12)) - (long)(rx_ring)->ring + (long)(rx_ring)) / sizeof(
(rx_ring)->ring[0]))>>16)>>8)>>4) & 0x1
)))<<4 : ((((((((1 << 12)) - (long)(rx_ring)->
ring + (long)(rx_ring)) / sizeof((rx_ring)->ring[0]))>>
16)>>8) & 0x0000000c) ? (((((((((1 << 12)) - (
long)(rx_ring)->ring + (long)(rx_ring)) / sizeof((rx_ring)
->ring[0]))>>16)>>8)>>2) & 0x00000002
) ? 0x2 : ((((((((1 << 12)) - (long)(rx_ring)->ring +
(long)(rx_ring)) / sizeof((rx_ring)->ring[0]))>>16)
>>8)>>2) & 0x1))<<2 : ((((((((1 <<
12)) - (long)(rx_ring)->ring + (long)(rx_ring)) / sizeof(
(rx_ring)->ring[0]))>>16)>>8) & 0x00000002
) ? 0x2 : (((((((1 << 12)) - (long)(rx_ring)->ring +
(long)(rx_ring)) / sizeof((rx_ring)->ring[0]))>>16)
>>8) & 0x1))))<<8 : (((((((1 << 12)) - (
long)(rx_ring)->ring + (long)(rx_ring)) / sizeof((rx_ring)
->ring[0]))>>16) & 0x000000f0) ? ((((((((1 <<
12)) - (long)(rx_ring)->ring + (long)(rx_ring)) / sizeof(
(rx_ring)->ring[0]))>>16)>>4) & 0x0000000c
) ? (((((((((1 << 12)) - (long)(rx_ring)->ring + (long
)(rx_ring)) / sizeof((rx_ring)->ring[0]))>>16)>>
4)>>2) & 0x00000002) ? 0x2 : ((((((((1 << 12)
) - (long)(rx_ring)->ring + (long)(rx_ring)) / sizeof((rx_ring
)->ring[0]))>>16)>>4)>>2) & 0x1))<<
2 : ((((((((1 << 12)) - (long)(rx_ring)->ring + (long
)(rx_ring)) / sizeof((rx_ring)->ring[0]))>>16)>>
4) & 0x00000002) ? 0x2 : (((((((1 << 12)) - (long)(
rx_ring)->ring + (long)(rx_ring)) / sizeof((rx_ring)->ring
[0]))>>16)>>4) & 0x1)))<<4 : (((((((1 <<
12)) - (long)(rx_ring)->ring + (long)(rx_ring)) / sizeof(
(rx_ring)->ring[0]))>>16) & 0x0000000c) ? ((((((
((1 << 12)) - (long)(rx_ring)->ring + (long)(rx_ring
)) / sizeof((rx_ring)->ring[0]))>>16)>>2) &
0x00000002) ? 0x2 : (((((((1 << 12)) - (long)(rx_ring)
->ring + (long)(rx_ring)) / sizeof((rx_ring)->ring[0]))
>>16)>>2) & 0x1))<<2 : (((((((1 <<
12)) - (long)(rx_ring)->ring + (long)(rx_ring)) / sizeof(
(rx_ring)->ring[0]))>>16) & 0x00000002) ? 0x2 : (
(((((1 << 12)) - (long)(rx_ring)->ring + (long)(rx_ring
)) / sizeof((rx_ring)->ring[0]))>>16) & 0x1)))))
<<16 : ((((((1 << 12)) - (long)(rx_ring)->ring
+ (long)(rx_ring)) / sizeof((rx_ring)->ring[0])) & 0x0000ff00
) ? (((((((1 << 12)) - (long)(rx_ring)->ring + (long
)(rx_ring)) / sizeof((rx_ring)->ring[0]))>>8) & 0x000000f0
) ? ((((((((1 << 12)) - (long)(rx_ring)->ring + (long
)(rx_ring)) / sizeof((rx_ring)->ring[0]))>>8)>>
4) & 0x0000000c) ? (((((((((1 << 12)) - (long)(rx_ring
)->ring + (long)(rx_ring)) / sizeof((rx_ring)->ring[0])
)>>8)>>4)>>2) & 0x00000002) ? 0x2 : (((
(((((1 << 12)) - (long)(rx_ring)->ring + (long)(rx_ring
)) / sizeof((rx_ring)->ring[0]))>>8)>>4)>>
2) & 0x1))<<2 : ((((((((1 << 12)) - (long)(rx_ring
)->ring + (long)(rx_ring)) / sizeof((rx_ring)->ring[0])
)>>8)>>4) & 0x00000002) ? 0x2 : (((((((1 <<
12)) - (long)(rx_ring)->ring + (long)(rx_ring)) / sizeof(
(rx_ring)->ring[0]))>>8)>>4) & 0x1)))<<
4 : (((((((1 << 12)) - (long)(rx_ring)->ring + (long
)(rx_ring)) / sizeof((rx_ring)->ring[0]))>>8) & 0x0000000c
) ? ((((((((1 << 12)) - (long)(rx_ring)->ring + (long
)(rx_ring)) / sizeof((rx_ring)->ring[0]))>>8)>>
2) & 0x00000002) ? 0x2 : (((((((1 << 12)) - (long)(
rx_ring)->ring + (long)(rx_ring)) / sizeof((rx_ring)->ring
[0]))>>8)>>2) & 0x1))<<2 : (((((((1 <<
12)) - (long)(rx_ring)->ring + (long)(rx_ring)) / sizeof(
(rx_ring)->ring[0]))>>8) & 0x00000002) ? 0x2 : (
(((((1 << 12)) - (long)(rx_ring)->ring + (long)(rx_ring
)) / sizeof((rx_ring)->ring[0]))>>8) & 0x1))))<<
8 : ((((((1 << 12)) - (long)(rx_ring)->ring + (long)
(rx_ring)) / sizeof((rx_ring)->ring[0])) & 0x000000f0)
? (((((((1 << 12)) - (long)(rx_ring)->ring + (long)
(rx_ring)) / sizeof((rx_ring)->ring[0]))>>4) & 0x0000000c
) ? ((((((((1 << 12)) - (long)(rx_ring)->ring + (long
)(rx_ring)) / sizeof((rx_ring)->ring[0]))>>4)>>
2) & 0x00000002) ? 0x2 : (((((((1 << 12)) - (long)(
rx_ring)->ring + (long)(rx_ring)) / sizeof((rx_ring)->ring
[0]))>>4)>>2) & 0x1))<<2 : (((((((1 <<
12)) - (long)(rx_ring)->ring + (long)(rx_ring)) / sizeof(
(rx_ring)->ring[0]))>>4) & 0x00000002) ? 0x2 : (
(((((1 << 12)) - (long)(rx_ring)->ring + (long)(rx_ring
)) / sizeof((rx_ring)->ring[0]))>>4) & 0x1)))<<
4 : ((((((1 << 12)) - (long)(rx_ring)->ring + (long)
(rx_ring)) / sizeof((rx_ring)->ring[0])) & 0x0000000c)
? (((((((1 << 12)) - (long)(rx_ring)->ring + (long)
(rx_ring)) / sizeof((rx_ring)->ring[0]))>>2) & 0x00000002
) ? 0x2 : ((((((1 << 12)) - (long)(rx_ring)->ring + (
long)(rx_ring)) / sizeof((rx_ring)->ring[0]))>>2) &
0x1))<<2 : ((((((1 << 12)) - (long)(rx_ring)->
ring + (long)(rx_ring)) / sizeof((rx_ring)->ring[0])) &
0x00000002) ? 0x2 : (((((1 << 12)) - (long)(rx_ring)->
ring + (long)(rx_ring)) / sizeof((rx_ring)->ring[0])) &
0x1))))))); (&nd->rx)->sring = (rx_ring); } while (
0);
381 grant = hyp_grant_give(domid, atop(addr)(((vm_size_t)(addr)) >> 12), 0);
382
383 /* and give it to backend. */
384 i = sprintf(port_name, "%d", grant);
Value stored to 'i' is never read
385 c = hyp_store_write(t, port_name, 5, VIF_PATH"device/vif", "/", vifs[n], "/", "rx-ring-ref");
386 if (!c)
387 panic("eth: couldn't store rx_ring reference for VIF %s (%s)", vifs[n], hyp_store_error);
388 kfree((vm_offset_t) c, strlen(c)+1);
389
390 /* tell we need csums. */
391 c = hyp_store_write(t, "1", 5, VIF_PATH"device/vif", "/", vifs[n], "/", "feature-no-csum-offload");
392 if (!c)
393 panic("eth: couldn't store feature-no-csum-offload reference for VIF %s (%s)", vifs[n], hyp_store_error);
394 kfree((vm_offset_t) c, strlen(c)+1);
395
396 /* Allocate an event channel and give it to backend. */
397 nd->evt = evt = hyp_event_channel_alloc(domid);
398 i = sprintf(port_name, "%lu", evt);
399 c = hyp_store_write(t, port_name, 5, VIF_PATH"device/vif", "/", vifs[n], "/", "event-channel");
400 if (!c)
401 panic("eth: couldn't store event channel for VIF %s (%s)", vifs[n], hyp_store_error);
402 kfree((vm_offset_t) c, strlen(c)+1);
403 c = hyp_store_write(t, hyp_store_state_initialized"3", 5, VIF_PATH"device/vif", "/", vifs[n], "/", "state");
404 if (!c)
405 panic("eth: couldn't store state for VIF %s (%s)", vifs[n], hyp_store_error);
406 kfree((vm_offset_t) c, strlen(c)+1);
407 } while ((!hyp_store_transaction_stop(t)));
408 /* TODO randomly wait? */
409
410 c = hyp_store_read(0, 5, VIF_PATH"device/vif", "/", vifs[n], "/", "backend");
411 if (!c)
412 panic("eth: couldn't get path to VIF %s backend (%s)", vifs[n], hyp_store_error);
413 nd->backend = c;
414
415 while(1) {
416 i = hyp_store_read_int(0, 3, nd->backend, "/", "state");
417 if (i == MACH_ATOI_DEFAULT-1)
418 panic("can't read state from %s", nd->backend);
419 if (i == XenbusStateInitWait)
420 break;
421 hyp_yield()hyp_sched_op(0, 0);
422 }
423
424 c = hyp_store_read(0, 3, nd->backend, "/", "mac");
425 if (!c)
426 panic("eth: couldn't get VIF %s's mac (%s)", vifs[n], hyp_store_error);
427
428 for (i=0; ; i++) {
429 int val;
430 hextoi(&c[3*i], &val);
431 if (val == -1)
432 panic("eth: couldn't understand %dth number of VIF %s's mac %s", i, vifs[n], c);
433 nd->address[i] = val;
434 if (i==ADDRESS_SIZE6-1)
435 break;
436 if (c[3*i+2] != ':')
437 panic("eth: couldn't understand %dth separator of VIF %s's mac %s", i, vifs[n], c);
438 }
439 kfree((vm_offset_t) c, strlen(c)+1);
440
441 printf("eth%d: dom%d's VIF %s ", n, domid, vifs[n]);
442 for (i=0; ; i++) {
443 printf("%02x", nd->address[i]);
444 if (i==ADDRESS_SIZE6-1)
445 break;
446 printf(":");
447 }
448 printf("\n");
449
450 nd->rx_copy = hyp_store_read_int(0, 3, nd->backend, "/", "feature-rx-copy");
451 if (nd->rx_copy == 1) {
452 c = hyp_store_write(0, "1", 5, VIF_PATH"device/vif", "/", vifs[n], "/", "request-rx-copy");
453 if (!c)
454 panic("eth: couldn't request rx copy feature for VIF %s (%s)", vifs[n], hyp_store_error);
455 } else
456 nd->rx_copy = 0;
457
458 c = hyp_store_write(0, hyp_store_state_connected"4", 5, VIF_PATH"device/vif", "/", nd->vif, "/", "state");
459 if (!c)
460 panic("couldn't store state for eth%d (%s)", nd - vif_data, hyp_store_error);
461 kfree((vm_offset_t) c, strlen(c)+1);
462
463 while(1) {
464 i = hyp_store_read_int(0, 3, nd->backend, "/", "state");
465 if (i == MACH_ATOI_DEFAULT-1)
466 panic("can't read state from %s", nd->backend);
467 if (i == XenbusStateConnected)
468 break;
469 hyp_yield()hyp_sched_op(0, 0);
470 }
471
472 /* Get a page for packet reception */
473 for (i= 0; i<WINDOW(((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0])) & 0xffff0000) ? (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
) & 0x0000ff00) ? ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x000000f0) ? (
((((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>16)>>8)>>4) & 0x0000000c
) ? ((((((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4)>>2) &
0x00000002) ? 0x2 : (((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4)>>2) &
0x1))<<2 : (((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4) & 0x00000002
) ? 0x2 : ((((((((1 << 12)) - (long)((netif_rx_sring_t*
)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>4) & 0x1))
)<<4 : ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x0000000c) ? (
((((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>16)>>8)>>2) & 0x00000002
) ? 0x2 : ((((((((1 << 12)) - (long)((netif_rx_sring_t*
)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8)>>2) & 0x1))
<<2 : ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x00000002) ? 0x2
: (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>8) & 0x1))))<<
8 : (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16) & 0x000000f0) ? ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4) & 0x0000000c) ? (((((((((1 << 12)) - (long
)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t*)
0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16)>>
4)>>2) & 0x00000002) ? 0x2 : ((((((((1 << 12)
) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4)>>2) & 0x1))<<2 : ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4) & 0x00000002) ? 0x2 : (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
)>>4) & 0x1)))<<4 : (((((((1 << 12)) - (
long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>16
) & 0x0000000c) ? ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>2) & 0x00000002) ? 0x2
: (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>16)>>2) & 0x1))<<2 :
(((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>16) & 0x00000002) ? 0x2 : ((((((
1 << 12)) - (long)((netif_rx_sring_t*)0)->ring + (long
)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*)0)->
ring[0]))>>16) & 0x1)))))<<16 : ((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x0000ff00
) ? (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>8) & 0x000000f0) ? ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4) & 0x0000000c) ? (((((((((1 << 12)) - (long
)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t*)
0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)>>
4)>>2) & 0x00000002) ? 0x2 : ((((((((1 << 12)
) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4)>>2) & 0x1))<<2 : ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4) & 0x00000002) ? 0x2 : (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
>>4) & 0x1)))<<4 : (((((((1 << 12)) - (
long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>8)
& 0x0000000c) ? ((((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>8)>>2) & 0x00000002) ? 0x2
: (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>8)>>2) & 0x1))<<2 :
(((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->ring
+ (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*
)0)->ring[0]))>>8) & 0x00000002) ? 0x2 : ((((((1
<< 12)) - (long)((netif_rx_sring_t*)0)->ring + (long
)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*)0)->
ring[0]))>>8) & 0x1))))<<8 : ((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x000000f0
) ? (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>4) & 0x0000000c) ? ((((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>4)
>>2) & 0x00000002) ? 0x2 : (((((((1 << 12)) -
(long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>4)
>>2) & 0x1))<<2 : (((((((1 << 12)) - (long
)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t*)
0)) / sizeof(((netif_rx_sring_t*)0)->ring[0]))>>4) &
0x00000002) ? 0x2 : ((((((1 << 12)) - (long)((netif_rx_sring_t
*)0)->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>4) & 0x1)))<<4 : ((((((1 <<
12)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x0000000c
) ? (((((((1 << 12)) - (long)((netif_rx_sring_t*)0)->
ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0]))>>2) & 0x00000002) ? 0x2 : ((((((
1 << 12)) - (long)((netif_rx_sring_t*)0)->ring + (long
)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t*)0)->
ring[0]))>>2) & 0x1))<<2 : ((((((1 << 12
)) - (long)((netif_rx_sring_t*)0)->ring + (long)((netif_rx_sring_t
*)0)) / sizeof(((netif_rx_sring_t*)0)->ring[0])) & 0x00000002
) ? 0x2 : (((((1 << 12)) - (long)((netif_rx_sring_t*)0)
->ring + (long)((netif_rx_sring_t*)0)) / sizeof(((netif_rx_sring_t
*)0)->ring[0])) & 0x1))))))); i++) {
474 if ((addr = vm_page_grab_phys_addr()) == -1)
475 panic("eth: couldn't allocate space for store tx_ring");
476 nd->rx_buf[i] = (void*)phystokv(addr)((vm_offset_t)(addr) + 0xC0000000UL);
477 nd->rx_buf_pfn[i] = atop(addr)(((vm_size_t)(addr)) >> 12);
478 if (!nd->rx_copy) {
479 if (hyp_do_update_va_mapping(kvtolin(nd->rx_buf[i]), 0, UVMF_INVLPG|UVMF_ALL)({ pt_entry_t __val = (0); hyp_update_va_mapping(((vm_offset_t
)(nd->rx_buf[i]) - 0xC0000000UL + ((0xc0000000UL))), __val
& 0xffffffffU, ((__val) >> 32), (2UL<<0)|(1UL
<<2)); }))
480 panic("eth: couldn't clear rx kv buf %d at %p", i, addr);
481 }
482 /* and enqueue it to backend. */
483 enqueue_rx_buf(nd, i);
484 }
485 int notify;
486 wmb()__asm__ __volatile__("lock; addl $0,0(%esp)"); /* make sure it sees requests */
487 RING_PUSH_REQUESTS_AND_CHECK_NOTIFY(&nd->rx, notify)do { RING_IDX __old = (&nd->rx)->sring->req_prod
; RING_IDX __new = (&nd->rx)->req_prod_pvt; __asm__
__volatile__("lock; addl $0,0(%esp)"); (&nd->rx)->
sring->req_prod = __new; __asm__ __volatile__("lock; addl $0,0(%esp)"
); (notify) = ((RING_IDX)(__new - (&nd->rx)->sring->
req_event) < (RING_IDX)(__new - __old)); } while (0);
488 if (notify)
489 hyp_event_channel_send(nd->evt);
490
491
492 nd->open_count = -1;
493 nd->device.emul_ops = &hyp_net_emulation_ops;
494 nd->device.emul_data = nd;
495 simple_lock_init(&nd->lock);
496 simple_lock_init(&nd->pushlock);
497
498 ifp = &nd->ifnet;
499 ifp->if_unit = n;
500 ifp->if_flags = IFF_UP0x0001 | IFF_RUNNING0x0040;
501 ifp->if_header_size = 14;
502 ifp->if_header_format = HDR_ETHERNET1;
503 /* Set to the maximum that we can handle in device_write. */
504 ifp->if_mtu = PAGE_SIZE(1 << 12) - ifp->if_header_size;
505 ifp->if_address_size = ADDRESS_SIZE6;
506 ifp->if_address = (void*) nd->address;
507 if_init_queues (ifp);
508
509 /* Now we can start receiving */
510 hyp_evt_handler(evt, hyp_net_intr, n, SPL66);
511 }
512}
513
514static ipc_port_t
515dev_to_port(void *d)
516{
517 struct net_data *b = d;
518 if (!d)
519 return IP_NULL((ipc_port_t) ((ipc_object_t) 0));
520 return ipc_port_make_send(b->port);
521}
522
523static int
524device_close(void *devp)
525{
526 struct net_data *nd = devp;
527 if (--nd->open_count < 0)
528 panic("too many closes on eth%d", nd - vif_data);
529 printf("close, eth%d count %d\n",nd-vif_data,nd->open_count);
530 if (nd->open_count)
531 return 0;
532 ipc_kobject_set(nd->port, IKO_NULL((ipc_kobject_t) 0), IKOT_NONE0);
533 ipc_port_dealloc_kernel(nd->port)ipc_port_dealloc_special((nd->port), ipc_space_kernel);
534 return 0;
535}
536
537static io_return_t
538device_open (ipc_port_t reply_port, mach_msg_type_name_t reply_port_type,
539 dev_mode_t mode, char *name, device_t *devp /* out */)
540{
541 int i, n, err = 0;
542 ipc_port_t port, notify;
543 struct net_data *nd;
544
545 if (name[0] != 'e' || name[1] != 't' || name[2] != 'h' || name[3] < '0' || name[3] > '9')
546 return D_NO_SUCH_DEVICE2502;
547 i = mach_atoi((u_char *) &name[3], &n);
548 if (n == MACH_ATOI_DEFAULT-1)
549 return D_NO_SUCH_DEVICE2502;
550 if (name[3 + i])
551 return D_NO_SUCH_DEVICE2502;
552 if (n >= n_vifs)
553 return D_NO_SUCH_DEVICE2502;
554 nd = &vif_data[n];
555 if (nd->open_count == -2)
556 /* couldn't be initialized */
557 return D_NO_SUCH_DEVICE2502;
558
559 if (nd->open_count >= 0) {
560 *devp = &nd->device ;
561 nd->open_count++ ;
562 printf("re-open, eth%d count %d\n",nd-vif_data,nd->open_count);
563 return D_SUCCESS0;
564 }
565
566 nd->open_count = 1;
567 printf("eth%d count %d\n",nd-vif_data,nd->open_count);
568
569 port = ipc_port_alloc_kernel()ipc_port_alloc_special(ipc_space_kernel);
570 if (port == IP_NULL((ipc_port_t) ((ipc_object_t) 0))) {
571 device_close (nd);
572 return KERN_RESOURCE_SHORTAGE6;
573 }
574 nd->port = port;
575
576 *devp = &nd->device;
577
578 ipc_kobject_set (port, (ipc_kobject_t) &nd->device, IKOT_DEVICE10);
579
580 notify = ipc_port_make_sonce (nd->port);
581 ip_lock (nd->port);
582 ipc_port_nsrequest (nd->port, 1, notify, &notify);
583 assert (notify == IP_NULL)({ if (!(notify == ((ipc_port_t) ((ipc_object_t) 0)))) Assert
("notify == IP_NULL", "../xen/net.c", 583); });
584
585 if (IP_VALID (reply_port)(((&(reply_port)->ip_target.ipt_object) != ((ipc_object_t
) 0)) && ((&(reply_port)->ip_target.ipt_object
) != ((ipc_object_t) -1))))
586 ds_device_open_reply (reply_port, reply_port_type, D_SUCCESS0, dev_to_port(nd));
587 else
588 device_close(nd);
589 return MIG_NO_REPLY-305;
590}
591
592static io_return_t
593device_write(void *d, ipc_port_t reply_port,
594 mach_msg_type_name_t reply_port_type, dev_mode_t mode,
595 recnum_t bn, io_buf_ptr_t data, unsigned int count,
596 int *bytes_written)
597{
598 vm_map_copy_t copy = (vm_map_copy_t) data;
599 grant_ref_t gref;
600 struct net_data *nd = d;
601 struct ifnet *ifp = &nd->ifnet;
602 netif_tx_request_t *req;
603 unsigned reqn;
604 vm_offset_t offset;
605 vm_page_t m;
606 vm_size_t size;
607
608 /* The maximum that we can handle. */
609 assert(ifp->if_header_size + ifp->if_mtu <= PAGE_SIZE)({ if (!(ifp->if_header_size + ifp->if_mtu <= (1 <<
12))) Assert("ifp->if_header_size + ifp->if_mtu <= PAGE_SIZE"
, "../xen/net.c", 609); });
610
611 if (count < ifp->if_header_size ||
612 count > ifp->if_header_size + ifp->if_mtu)
613 return D_INVALID_SIZE2507;
614
615 assert(copy->type == VM_MAP_COPY_PAGE_LIST)({ if (!(copy->type == 3)) Assert("copy->type == VM_MAP_COPY_PAGE_LIST"
, "../xen/net.c", 615); });
616
617 assert(copy->cpy_npages <= 2)({ if (!(copy->c_u.c_p.npages <= 2)) Assert("copy->cpy_npages <= 2"
, "../xen/net.c", 617); });
618 assert(copy->cpy_npages >= 1)({ if (!(copy->c_u.c_p.npages >= 1)) Assert("copy->cpy_npages >= 1"
, "../xen/net.c", 618); });
619
620 offset = copy->offset & PAGE_MASK((1 << 12)-1);
621 if (paranoia || copy->cpy_npagesc_u.c_p.npages == 2) {
622 /* have to copy :/ */
623 while ((m = vm_page_grab(FALSE((boolean_t) 0))) == 0)
624 VM_PAGE_WAIT (0)vm_page_wait(0);
625 assert (! m->active && ! m->inactive)({ if (!(! m->active && ! m->inactive)) Assert(
"! m->active && ! m->inactive", "../xen/net.c",
625); });
626 m->busy = TRUE((boolean_t) 1);
627
628 if (copy->cpy_npagesc_u.c_p.npages == 1)
629 size = count;
630 else
631 size = PAGE_SIZE(1 << 12) - offset;
632
633 memcpy((void*)phystokv(m->phys_addr)((vm_offset_t)(m->phys_addr) + 0xC0000000UL), (void*)phystokv(copy->cpy_page_list[0]->phys_addr + offset)((vm_offset_t)(copy->c_u.c_p.page_list[0]->phys_addr + offset
) + 0xC0000000UL), size);
634 if (copy->cpy_npagesc_u.c_p.npages == 2)
635 memcpy((void*)phystokv(m->phys_addr + size)((vm_offset_t)(m->phys_addr + size) + 0xC0000000UL), (void*)phystokv(copy->cpy_page_list[1]->phys_addr)((vm_offset_t)(copy->c_u.c_p.page_list[1]->phys_addr) +
0xC0000000UL), count - size);
636
637 offset = 0;
638 } else
639 m = copy->cpy_page_listc_u.c_p.page_list[0];
640
641 /* allocate a request */
642 spl_t spl = splimp();
643 while (1) {
644 simple_lock(&nd->lock);
645 if (!RING_FULL(&nd->tx)((((&nd->tx)->nr_ents) - ((&nd->tx)->req_prod_pvt
- (&nd->tx)->rsp_cons)) == 0))
646 break;
647 thread_sleep(nd, &nd->lock, FALSE((boolean_t) 0));
648 }
649 mb()__asm__ __volatile__("lock; addl $0,0(%esp)");
650 reqn = nd->tx.req_prod_pvt++;;
651 simple_lock(&nd->pushlock);
652 simple_unlock(&nd->lock)((void)(&nd->lock));
653 (void) splx(spl);
654
655 req = RING_GET_REQUEST(&nd->tx, reqn)(&((&nd->tx)->sring->ring[((reqn) & (((&
nd->tx)->nr_ents) - 1))].req));
656 req->gref = gref = hyp_grant_give(nd->domid, atop(m->phys_addr)(((vm_size_t)(m->phys_addr)) >> 12), 1);
657 req->offset = offset;
658 req->flags = 0;
659 req->id = gref;
660 req->size = count;
661
662 assert_wait(hyp_grant_address(gref), FALSE((boolean_t) 0));
663
664 int notify;
665 wmb()__asm__ __volatile__("lock; addl $0,0(%esp)"); /* make sure it sees requests */
666 RING_PUSH_REQUESTS_AND_CHECK_NOTIFY(&nd->tx, notify)do { RING_IDX __old = (&nd->tx)->sring->req_prod
; RING_IDX __new = (&nd->tx)->req_prod_pvt; __asm__
__volatile__("lock; addl $0,0(%esp)"); (&nd->tx)->
sring->req_prod = __new; __asm__ __volatile__("lock; addl $0,0(%esp)"
); (notify) = ((RING_IDX)(__new - (&nd->tx)->sring->
req_event) < (RING_IDX)(__new - __old)); } while (0);
667 if (notify)
668 hyp_event_channel_send(nd->evt);
669 simple_unlock(&nd->pushlock)((void)(&nd->pushlock));
670
671 thread_block(NULL((void *) 0));
672
673 hyp_grant_takeback(gref);
674
675 /* Send packet to filters. */
676 {
677 struct packet_header *packet;
678 struct ether_header *header;
679 ipc_kmsg_t kmsg;
680
681 kmsg = net_kmsg_get ();
682
683 if (kmsg != IKM_NULL((ipc_kmsg_t) 0))
684 {
685 /* Suitable for Ethernet only. */
686 header = (struct ether_header *) (net_kmsg (kmsg)((net_rcv_msg_t)&(kmsg)->ikm_header)->header);
687 packet = (struct packet_header *) (net_kmsg (kmsg)((net_rcv_msg_t)&(kmsg)->ikm_header)->packet);
688 memcpy (header, (void*)phystokv(m->phys_addr + offset)((vm_offset_t)(m->phys_addr + offset) + 0xC0000000UL), sizeof (struct ether_header));
689
690 /* packet is prefixed with a struct packet_header,
691 see include/device/net_status.h. */
692 memcpy (packet + 1, (void*)phystokv(m->phys_addr + offset + sizeof (struct ether_header))((vm_offset_t)(m->phys_addr + offset + sizeof (struct ether_header
)) + 0xC0000000UL),
693 count - sizeof (struct ether_header));
694 packet->length = count - sizeof (struct ether_header)
695 + sizeof (struct packet_header);
696 packet->type = header->ether_type;
697 net_kmsg (kmsg)((net_rcv_msg_t)&(kmsg)->ikm_header)->sent = TRUE((boolean_t) 1); /* Mark packet as sent. */
698 spl_t s = splimp ();
699 net_packet (&nd->ifnet, kmsg, packet->length,
700 ethernet_priority (kmsg));
701 splx (s);
702 }
703 }
704
705 if (paranoia || copy->cpy_npagesc_u.c_p.npages == 2)
706 VM_PAGE_FREE(m)({ ; vm_page_free(m); ((void)(&vm_page_queue_lock)); });
707
708 vm_map_copy_discard (copy);
709
710 *bytes_written = count;
711
712 if (IP_VALID(reply_port)(((&(reply_port)->ip_target.ipt_object) != ((ipc_object_t
) 0)) && ((&(reply_port)->ip_target.ipt_object
) != ((ipc_object_t) -1))))
713 ds_device_write_reply (reply_port, reply_port_type, 0, count);
714
715 return MIG_NO_REPLY-305;
716}
717
718static io_return_t
719device_get_status(void *d, dev_flavor_t flavor, dev_status_t status,
720 mach_msg_type_number_t *status_count)
721{
722 struct net_data *nd = d;
723
724 return net_getstat (&nd->ifnet, flavor, status, status_count);
725}
726
727static io_return_t
728device_set_status(void *d, dev_flavor_t flavor, dev_status_t status,
729 mach_msg_type_number_t count)
730{
731 struct net_data *nd = d;
732
733 switch (flavor)
734 {
735 default:
736 printf("TODO: net_%s(%p, 0x%x)\n", __func__, nd, flavor);
737 return D_INVALID_OPERATION2505;
738 }
739 return D_SUCCESS0;
740}
741
742static io_return_t
743device_set_filter(void *d, ipc_port_t port, int priority,
744 filter_t * filter, unsigned filter_count)
745{
746 struct net_data *nd = d;
747
748 if (!nd)
749 return D_NO_SUCH_DEVICE2502;
750
751 return net_set_filter (&nd->ifnet, port, priority, filter, filter_count);
752}
753
754struct device_emulation_ops hyp_net_emulation_ops = {
755 NULL((void *) 0), /* dereference */
756 NULL((void *) 0), /* deallocate */
757 dev_to_port,
758 device_open,
759 device_close,
760 device_write,
761 NULL((void *) 0), /* write_inband */
762 NULL((void *) 0),
763 NULL((void *) 0), /* read_inband */
764 device_set_status, /* set_status */
765 device_get_status,
766 device_set_filter, /* set_filter */
767 NULL((void *) 0), /* map */
768 NULL((void *) 0), /* no_senders */
769 NULL((void *) 0), /* write_trap */
770 NULL((void *) 0), /* writev_trap */
771};