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[Gumstix-users] Net/uSD ethernet doesn't come back up if shut down, and then started back up.
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From: Jay S. <jay...@ty...> - 2007-12-27 21:50:59
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I need to be able to reconfigure the Ethernet address on the fly.
If I do the following:
ifdown eth0
ifup eth0
The link is still shown as "down". If I "modprobe -r smc911x", to
remove the module from the running kernel, and then "ifup eth0", it
comes back up.
See the following:
[root@gumstix ~]# ifconfig
eth0 Link encap:Ethernet HWaddr 1E:D9:0E:42:A3:90
inet addr:169.254.1.1 Bcast:0.0.0.0 Mask:255.255.0.0
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:131 Base address:0xe000 DMA chan:ff
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
[root@gumstix ~]# ifdown eth0
[root@gumstix ~]# ethtool eth0
Settings for eth0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Advertised auto-negotiation: Yes
Speed: 10Mb/s
Duplex: Half
Port: MII
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
Current message level: 0x00000004 (4)
Link detected: no
[root@gumstix ~]# ifup eth0
Auto negotiation NOT supported
ADDRCONF(NETDEV_UP): eth0: link is not ready
[root@gumstix ~]# ifdown eth0
[root@gumstix ~]# ethtool eth0
Settings for eth0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Advertised auto-negotiation: Yes
Speed: 10Mb/s
Duplex: Half
Port: MII
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
Current message level: 0x00000004 (4)
Link detected: no
[root@gumstix ~]# ifdown eth0
[root@gumstix ~]# lsmod
Module Size Used by
ipv6 248416 10
smc911x 18913 0
mii 4736 1 smc911x
usb_storage 34948 0
scsi_mod 84772 1 usb_storage
usbhid 14468 0
hid 26368 1 usbhid
ohci_hcd 19620 0
usbcore 113340 4 usb_storage,usbhid,ohci_hcd
gumstix_smc911x 2784 1 smc911x
nls_iso8859_1 3872 1
nls_cp437 5536 1
gpio_event_drv 10580 0
pxamci 6240 0
mmc_block 6568 2
mmc_core 22100 2 pxamci,mmc_block
ext3 96580 0
jbd 51912 1 ext3
vfat 9920 1
fat 45980 1 vfat
nls_base 6400 4 nls_iso8859_1,nls_cp437,vfat,fat
cramfs 40592 1
loop 12392 2
proc_gpio 9412 0
pxafb 10376 0 [permanent]
cfbcopyarea 3072 1 pxafb
fb 33956 1 pxafb
cfbimgblt 2464 1 pxafb
cfbfillrect 3456 1 pxafb
unix 22292 6
[root@gumstix ~]# modprobe -r smc911x
Device 'smc911x.0' does not have a release() function, it is broken and
must be fixed.
BUG: at drivers/base/core.c:106 device_release()
[<c002cdc8>] (dump_stack+0x0/0x14) from [<c00faa78>]
(device_release+0x80/0x94)
[<c00fa9f8>] (device_release+0x0/0x94) from [<c00d57e0>]
(kobject_cleanup+0x68/0x84)
[<c00d5778>] (kobject_cleanup+0x0/0x84) from [<c00d5810>]
(kobject_release+0x14/0x18)
r7 = C3055F34 r6 = C3054000 r5 = C00D57FC r4 = BF080818
[<c00d57fc>] (kobject_release+0x0/0x18) from [<c00d66d8>]
(kref_put+0x84/0xa0)
[<c00d6654>] (kref_put+0x0/0xa0) from [<c00d5770>] (kobject_put+0x20/0x28)
r5 = 00000000 r4 = BF080790
[<c00d5750>] (kobject_put+0x0/0x28) from [<c00fac98>] (put_device+0x1c/0x20)
[<c00fac7c>] (put_device+0x0/0x20) from [<c00ff780>]
(platform_device_put+0x1c/0x20)
[<c00ff764>] (platform_device_put+0x0/0x20) from [<c00ff804>]
(platform_device_unregister+0x20/0x24)
[<c00ff7e4>] (platform_device_unregister+0x0/0x24) from [<bf08003c>]
(cleanup_module+0x2c/0x3c [gumstix_smc911x])
r4 = BF080960
[<bf080010>] (cleanup_module+0x0/0x3c [gumstix_smc911x]) from
[<c0056990>] (sys_delete_module+0x1b4/0x1e4)
[<c00567dc>] (sys_delete_module+0x0/0x1e4) from [<c0028be0>]
(ret_fast_syscall+0x0/0x2c)
r8 = C0028D64 r7 = 00000081 r6 = 00017480 r5 = 00017430
r4 = 00000000
[root@gumstix ~]# ifup eth0
eth0: LAN9117 (rev 1) at 0xc487e000 IRQ 131
eth0: Ethernet addr: 1e:d9:0e:42:a3:90
eth0: link down
ADDRCONF(NETDEV_UP): eth0: link is not ready
[root@gumstix ~]#
[root@gumstix ~]# !e
ethtool eth0
Settings for eth0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Advertised auto-negotiation: Yes
Speed: 10Mb/s
Duplex: Half
Port: MII
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
Current message level: 0x00000004 (4)
Link detected: no
[root@gumstix ~]# ethtool eth0
Settings for eth0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Advertised auto-negotiation: Yes
Speed: 10Mb/s
Duplex: Half
Port: MII
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
Current message level: 0x00000004 (4)
Link detected: no
[root@gumstix ~]# eth0: link up, 100Mbps, full-duplex, lpa 0x8DE1
ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[root@gumstix ~]#
[root@gumstix ~]# !e
ethtool eth0
Settings for eth0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Advertised auto-negotiation: Yes
Speed: 100Mb/s
Duplex: Full
Port: MII
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
Current message level: 0x00000004 (4)
Link detected: yes
[root@gumstix ~]# ifdown eth0
[root@gumstix ~]# !e
ethtool eth0
Settings for eth0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Advertised auto-negotiation: Yes
Speed: 100Mb/s
Duplex: Full
Port: MII
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
Current message level: 0x00000004 (4)
Link detected: no
[root@gumstix ~]# ifup eth0
Auto negotiation NOT supported
ADDRCONF(NETDEV_UP): eth0: link is not ready
[root@gumstix ~]#
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