netdev - Re: [PATCH net 1/1] net/mlx4_core: Enable 4K UAR if SRIOV module parameter is not enabled

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Message-Id: <20170818.161607.1630814326634748163.davem@davemloft.net>
Date:   Fri, 18 Aug 2017 16:16:07 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     saeedm@...lanox.com
Cc:     netdev@...r.kernel.org, kamalh@...lanox.com, huyn@...lanox.com
Subject: Re: [PATCH net 1/1] net/mlx4_core: Enable 4K UAR if SRIOV module
 parameter is not enabled

From: Saeed Mahameed <saeedm@...lanox.com>
Date: Thu, 17 Aug 2017 18:29:52 +0300

> From: Huy Nguyen <huyn@...lanox.com>
> 
> enable_4k_uar module parameter was added in patch cited below to
> address the backward compatibility issue in SRIOV when the VM has
> system's PAGE_SIZE uar implementation and the Hypervisor has 4k uar
> implementation.
> 
> The above compatibility issue does not exist in the non SRIOV case.
> In this patch, we always enable 4k uar implementation if SRIOV
> is not enabled on mlx4's supported cards.
> 
> Fixes: 76e39ccf9c36 ("net/mlx4_core: Fix backward compatibility on VFs")
> Signed-off-by: Huy Nguyen <huyn@...lanox.com>
> Reviewed-by: Daniel Jurgens <danielj@...lanox.com>
> Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>

Applied and queued up for -stable, thanks.