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From: Helmut Sim <simhelmut@gmail.com>
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Subject: [dpdk-dev] fail to bind '82541GI Gigabit Ethernet Controller' to
	IGB_UIO driver
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Hi,

I am new to dpdk.
I built the dpdk-1.6.0r1 and even was able to compile the apps.
Then I am trying to bind my NIC to the dpdk application:
#modprobe uio
#
#insmod x86_64-default-linuxapp-gcc/kmod/igb_uio.ko
#
# ./tools/pci_unbind.py --status

Network devices using IGB_UIO driver
====================================
<none>

Network devices using kernel driver
===================================
0000:02:00.0 'RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller'
if=eth0 drv=r8169 unused=<none> *Active*
0000:05:0c.0 '82541GI Gigabit Ethernet Controller' if=p3p1 drv=e1000
unused=<none> *Active*
0000:05:0d.0 '82541GI Gigabit Ethernet Controller' if=p3p2 drv=e1000
unused=<none>

Other network devices
=====================
<none>

# ./tools/pci_unbind.py --bind=igb_uio 05:0d.0
Error: bind failed for 0000:05:0d.0 - Cannot bind to driver igb_uio
(/sys/bus/pci/drivers/igb_uio/bind)
Error: unbind failed for 0000:05:0d.0 - Cannot open
/sys/bus/pci/drivers//unbind
#

unlike previous cases I went over in this forum, this NIC supposed to be
supported (or maybe i read it incorrectly???):

# cat lib/librte_eal/common/include/rte_pci_dev_ids.h | grep 82541GI
#define E1000_DEV_ID_82541GI                  0x1076
#define E1000_DEV_ID_82541GI_LF               0x107C
#define E1000_DEV_ID_82541GI_MOBILE           0x1077

my machine data (i am not using any visualization at the moment):
# uname -a
Linux helmut 3.11.0-18-generic #32-Ubuntu SMP Tue Feb 18 21:11:14 UTC 2014
x86_64 x86_64 x86_64 GNU/Linux


any idea why the unbind failes?


Thanks!