From: Tziporet Koren <tziporet-VPRAkNaXOzVS1MOuV/RT9w@public.gmane.org>
To: Roland Dreier <rdreier-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
Cc: Bharath Ramesh <bramesh-PjAqaU27lzQ@public.gmane.org>,
"linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: Maximum size for memory registration (ibv_reg_mr)
Date: Mon, 27 Sep 2010 13:18:26 +0200 [thread overview]
Message-ID: <4CA07D82.7000207@mellanox.co.il> (raw)
In-Reply-To: <adaiq1uagwi.fsf-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
On 9/25/2010 12:57 AM, Roland Dreier wrote:
> All Mellanox adapters have some limit on the amount of memory they can
> register. You can mess around with module parameters to adjust it.
>
>
You can use mlx4_core module parameter (log_mtts_per_seg) to enlarge
number of MTTs per segment.
This enable to register more memory with the same number of segments.
In OFED 1.5.2 the max value was enlarged to 7
Tziporet
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next prev parent reply other threads:[~2010-09-27 11:18 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-24 22:12 Maximum size for memory registration (ibv_reg_mr) Bharath Ramesh
2010-09-24 22:36 ` Roland Dreier
[not found] ` <adar5giahvd.fsf-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
2010-09-24 22:42 ` Bharath Ramesh
2010-09-24 22:47 ` Roland Dreier
[not found] ` <adamxr6ahd3.fsf-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
2010-09-24 22:52 ` Bharath Ramesh
2010-09-24 22:57 ` Roland Dreier
[not found] ` <adaiq1uagwi.fsf-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
2010-09-27 11:18 ` Tziporet Koren [this message]
2010-10-07 9:40 ` Or Gerlitz
[not found] ` <4CAD9572.5060507-hKgKHo2Ms0FWk0Htik3J/w@public.gmane.org>
2010-10-07 10:13 ` Eli Cohen
2010-10-07 11:21 ` Or Gerlitz
[not found] ` <4CADAD40.8080202-smomgflXvOZWk0Htik3J/w@public.gmane.org>
2010-10-07 11:49 ` Eli Cohen
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