linux-kernel - Re: [BUG] mellanox IB driver fails to load on large config

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Message-ID: <20150720162803.GL58053@asylum.americas.sgi.com>
Date:	Mon, 20 Jul 2015 11:28:03 -0500
From:	Alex Thorlton <athorlton@....com>
To:	Or Gerlitz <ogerlitz@...lanox.com>
Cc:	Alex Thorlton <athorlton@....com>,
	Or Gerlitz <gerlitz.or@...il.com>,
	andrew banman <abanman@....com>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Doug Ledford <dledford@...hat.com>,
	Sean Hefty <sean.hefty@...el.com>,
	Hal Rosenstock <hal.rosenstock@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	Roland Dreier <roland@...estorage.com>,
	Matan Barak <matanb@...lanox.com>,
	Moni Shoua <monis@...lanox.com>,
	Jack Morgenstein <jackm@....mellanox.co.il>,
	Yishai Hadas <yishaih@...lanox.com>,
	Eran Ben Elisha <eranbe@...lanox.com>,
	Ira Weiny <ira.weiny@...el.com>,
	"linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>
Subject: Re: [BUG] mellanox IB driver fails to load on large config

On Thu, Jul 16, 2015 at 09:25:37AM +0300, Or Gerlitz wrote:
> On 7/14/2015 11:28 PM, Alex Thorlton wrote:
>>
>> We see the same exact messages on 4.1-rc8.
>>
>>
>
> does this solves the problem?
>
>
> diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
> index ad31e47..c8ae3b9 100644
> --- a/include/linux/mlx4/device.h
> +++ b/include/linux/mlx4/device.h
> @@ -45,7 +45,7 @@
>  #include <linux/timecounter.h>
>
>  #define MAX_MSIX_P_PORT                17
> -#define MAX_MSIX               64
> +#define MAX_MSIX               1024
>  #define MIN_MSIX_P_PORT                5
>  #define MLX4_IS_LEGACY_EQ_MODE(dev_cap) ((dev_cap).num_comp_vectors < \
> (dev_cap).num_ports * MIN_MSIX_P_PORT)
> --
>

I've got some time on the large machine later today.  I'll give this a
try then.

Thanks, Or!

- Alex
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