[dpdk-dev] igb claiming device.

[dpdk-dev] igb claiming device.

[ratheesh kannoth]

Hi list,

I have enic driver compiled as part of kernel. when the system comes
up, it detects all the 4 vnics in mysystem ( say eth0, eth1, eth2,
eth3).  I am removing eth1, eth2 and eth3 thru sysfs remove entry (
https://www.kernel.org/doc/Documentation/filesystems/sysfs-pci.txt ).

1.After that i could see that  "lspci -s 06:0.0 -vvv" doesnot list
"Kernel driver in use: enic" line. But still /proc/iomem shows the bar
resources mapped. My understanding is that kicking out the device
should do a undo on ioremap done by the driver on the memory ?

2. when i load the igb_uio.ko ( dpdk driver ),  i could see all the
interfaces' ( eth1 , eth2 and eth3) lspci shows   Kernel driver in
use: igb_uio. But i want to have dpdk only on eth1 driver. How can i
do that ? is there any  problem due to claiming of eth2 and eth3 by
igb_uio ?

Thanks,
Ratheesh

Re: [dpdk-dev] igb claiming device.

[ratheesh kannoth]

I used unbind option...not remove. Still i face this problem

On Wed, Dec 17, 2014 at 11:02 AM, ratheesh kannoth
<ratheesh.ksz@gmail.com> wrote:
> Hi list,
>
> I have enic driver compiled as part of kernel. when the system comes
> up, it detects all the 4 vnics in mysystem ( say eth0, eth1, eth2,
> eth3).  I am removing eth1, eth2 and eth3 thru sysfs remove entry (
> https://www.kernel.org/doc/Documentation/filesystems/sysfs-pci.txt ).
>
> 1.After that i could see that  "lspci -s 06:0.0 -vvv" doesnot list
> "Kernel driver in use: enic" line. But still /proc/iomem shows the bar
> resources mapped. My understanding is that kicking out the device
> should do a undo on ioremap done by the driver on the memory ?
>
> 2. when i load the igb_uio.ko ( dpdk driver ),  i could see all the
> interfaces' ( eth1 , eth2 and eth3) lspci shows   Kernel driver in
> use: igb_uio. But i want to have dpdk only on eth1 driver. How can i
> do that ? is there any  problem due to claiming of eth2 and eth3 by
> igb_uio ?
>
> Thanks,
> Ratheesh