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From: Hemant Agrawal <hemant.agrawal@nxp.com>
To: Chas Williams <3chas3@gmail.com>, <dev@dpdk.org>
Cc: <anatoly.burakov@intel.com>, <thomas@monjalon.net>,
	Chas Williams <chas3@att.com>
Subject: Re: [dpdk-dev] [PATCH] eal: add option to force IOVA as PA mode
Date: Fri, 1 Dec 2017 11:18:50 +0530	[thread overview]
Message-ID: <5c919800-d135-6cac-1385-d1d0c58808d8@nxp.com> (raw)
In-Reply-To: <20171130025739.4349-1-3chas3@gmail.com>

On 11/30/2017 8:27 AM, Chas Williams wrote:
> From: Chas Williams <chas3@att.com>
>
> The IOMMU in some machines report that they can only support
> limited widths.  IOVA virtual addresses may exceed this width
> making the use of IOVA virtual addresses difficult.  The option
> CONFIG_RTE_LIBRTE_USE_PHYS_IOVA can used to force IOVA physical
> address usage.
>

Is it possible to dynamically detect the machine limitation in bus iova 
code instead of compile time option?

  parent reply	other threads:[~2017-12-01  5:48 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-30  2:57 Chas Williams
2017-11-30  9:17 ` Thomas Monjalon
2017-12-03  0:23   ` Chas Williams
2018-01-12  0:12     ` Thomas Monjalon
2018-01-12  3:28       ` Chas Williams
2017-12-01  5:48 ` Hemant Agrawal [this message]
2017-12-03  0:25   ` Chas Williams
  -- strict thread matches above, loose matches on Subject: below --
2017-11-30  2:57 Chas Williams
2017-11-30  2:56 Chas Williams

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