[dpdk-dev] hw.nic_uio.bdfs

Masaru Oki m-oki at stratosphere.co.jp
Wed Mar 26 07:15:45 CET 2014


Hi,

I tried with Intel version 1.6.0 and FreeBSD 9.2-RELEASE on VMware Player.

kldload nic_uio by hand, works fine.
But kldunload nic_uio only detach uio driver, don't re-attach kernel driver.

[oki@ ~]$ cat /boot/loader.conf
##############################################################
###  User settings  ##########################################
##############################################################
hw.contigmem.num_buffers=64
hw.contigmem.buffer_size=2097152
hw.nic_uio.bdfs="2:5:0,2:6:0"
contigmem_load="YES"
#nic_uio_load="YES"
[oki@ ~]$ pciconf -l | egrep '(em|uio)'
em0 at pci0:2:1:0: class=0x020000 card=0x075015ad chip=0x100f8086 rev=0x01
hdr=0x00
em1 at pci0:2:5:0: class=0x020000 card=0x075015ad chip=0x100f8086 rev=0x01
hdr=0x00
em2 at pci0:2:6:0: class=0x020000 card=0x075015ad chip=0x100f8086 rev=0x01
hdr=0x00
[oki@ ~]$ kenv hw.nic_uio.bdfs
2:5:0,2:6:0
[oki@ ~]$ sudo kldload nic_uio
Password:
[oki@ ~]$ pciconf -l | egrep '(em|uio)'
em0 at pci0:2:1:0: class=0x020000 card=0x075015ad chip=0x100f8086 rev=0x01
hdr=0x00
nic_uio0 at pci0:2:5:0:    class=0x020000 card=0x075015ad chip=0x100f8086
rev=0x01 hdr=0x00
nic_uio1 at pci0:2:6:0:    class=0x020000 card=0x075015ad chip=0x100f8086
rev=0x01 hdr=0x00
[oki@ ~]$ sudo kldunload nic_uio
[oki@ ~]$ pciconf -l | egrep '(em|uio)'
em0 at pci0:2:1:0: class=0x020000 card=0x075015ad chip=0x100f8086 rev=0x01
hdr=0x00
[oki@ ~]$



2014-03-26 14:35 GMT+09:00 Fred Pedrisa <fredhps10 at hotmail.com>:

> Hi, guys.
>
>
>
> This variable is not working as intended for FreeBSD :(
>
>
>
> It does not dettach nic_uio from the wanted ports :/
>
>
>
>


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