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Date:      Tue, 11 Jun 2013 07:05:12 +0000
From:      Alex Liptsin <alexl@mellanox.com>
To:        John Baldwin <jhb@freebsd.org>, "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>
Cc:        Oded Shanoon <odeds@mellanox.com>, "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org>, Regev Lev <regevl@mellanox.com>
Subject:   RE: How to switch Datgram/Connected mtu modes?
Message-ID:  <64DAB3164E410447932305F50F896D8D6AF6DBCA@MTLDAG01.mtl.com>
In-Reply-To: <201305291333.52607.jhb@freebsd.org>
References:  <64DAB3164E410447932305F50F896D8D6AF651AD@MTLDAG01.mtl.com> <201305291333.52607.jhb@freebsd.org>

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Hi.

Yes. There is no such entry.
The only way I found is to compile inside the kernel " options IPOIB_CM ".
Can I do it manually without compiling the kernel each time I want to switc=
h between the modes?
Maybe add it somehow to sysctl or loader.conf?
=20



Regards,
Alex Liptsin
Software Quality Assurance Engineer | Mellanox Technologies Ltd.
Office: +972 (74) 7236141
Mobile: +972(54) 7833986
Fax: +972(74) 7236161=20
Email: alexl@mellanox.com
Mellanox, Tel-Hai Industrial Park. Building 7, M.P. Upper Galilee 12100 Isr=
ael


-----Original Message-----
From: John Baldwin [mailto:jhb@freebsd.org]=20
Sent: Wednesday, May 29, 2013 9:17 PM
To: freebsd-net@freebsd.org
Cc: Alex Liptsin; freebsd-questions@freebsd.org
Subject: Re: How to switch Datgram/Connected mtu modes?

On Sunday, May 26, 2013 7:43:29 am Alex Liptsin wrote:
> Hello.
>=20
> I work with FreeBSD 9.1 and Mellanox devices.
>=20
> How can I configure MTU in connected mode on FreeBSD 9.1?
> In Linux to enable connected mode for interface ib0, I enter:
>=20
>    echo connected > /sys/class/net/ib0/mode
>=20
>=20
>=20
> Switching between CM and UD mode can be done in run time:
>=20
>    echo datagram > /sys/class/net/ib0/mode sets the mode of ib0 to UD
>=20
>    echo connected > /sys/class/net/ib0/mode sets the mode ib0 to CM
>=20
> There is no such directories at FreeBSD. Wat shall I do?

Have you tried looking for dev.ib.0 sysctls?  It looks like the OFED bits i=
n FreeBSD map Linux sysfs entries to sysctl nodes, but I don't have a box w=
ith IB handy to see what it looks like at runtime.

--
John Baldwin



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