How can I create 'pkey' on mellanox IB port?

[Alex Liptsin]

Hi Garrett.

Thanks a lot.
Where can I download the updated "sysfs.h" file?

Regards,
Alex Liptsin

From: Garrett Cooper [mailto:yanegomi at gmail.com]
Sent: Tuesday, May 28, 2013 6:45 PM
To: Alex Liptsin
Cc: freebsd-infiniband at freebsd.org; Jeff Roberson; Xin LI
Subject: Re: How can I create 'pkey' on mellanox IB port?

On Tue, May 28, 2013 at 5:10 AM, Alex Liptsin <alexl at mellanox.com<mailto:alexl at mellanox.com>> wrote:
Hello.

I have FreeBSD 9.1 installed.
There is mellanox adapter inside.

[root at qa-h-vrt-030-006 ~]# pciconf -lv |grep mlx4 -A 3
mlx4_core0 at pci0:0:5:0:  class=0x028000 card=0x005015b3 chip=0x100315b3 rev=0x00 hdr=0x00
    vendor     = 'Mellanox Technologies'
    device     = 'MT27500 Family [ConnectX-3]'
    class      = network


OFED support is already compiled.

I try to add pkeys on ib0 port.

Usually in  Linux I did:

echo 0x800c >  /sys/class/net/ib0/create_child

ifconfig -a
To Make sure you see a new interface: ib0.800c

How can I do it on FreeBSD? There is no "/sys/class/net/ib0/create_child" directory.

Hi Alex!
    For all sysfs entries there *should* be a corresponding sysctl for it. Do sysctl -Na | grep create_child and you might find the node that you seek. After that all you need to do is call sysctl <node>=0x800c and it should achieve the same thing as setting the sysfs node.
    Please note that you must be the patch attached to http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/174213 in order for things to function properly as the sysfs handling code is still broken on HEAD. I've CCed Jeff Roberson about it a few times, and asked for assistance from Xin as well as I haven't gotten any feedback from Jeff.
Thanks,
-Garrett