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Subject: Re: [PATCH v3 1/5] build: clarify configuration without IOVA field in
 mbuf
To: Thomas Monjalon <thomas@monjalon.net>, <dev@dpdk.org>
CC: David Marchand <david.marchand@redhat.com>, Bruce Richardson
 <bruce.richardson@intel.com>, Qi Zhang <qi.z.zhang@intel.com>,
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References: <20230219115529.3260580-1-thomas@monjalon.net>
 <20230314142958.3479004-1-thomas@monjalon.net>
 <20230314142958.3479004-2-thomas@monjalon.net>
From: fengchengwen <fengchengwen@huawei.com>
Message-ID: <61879568-0fbc-5ce9-26c2-af5daae9afc4@huawei.com>
Date: Wed, 15 Mar 2023 09:56:34 +0800
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Errors-To: dev-bounces@dpdk.org

Acked-by: Chengwen Feng <fengchengwen@huawei.com>

On 2023/3/14 22:29, Thomas Monjalon wrote:
> The impact of the option "enable_iova_as_pa" is explained for users.
> 
> Also the code flag "RTE_IOVA_AS_PA" is renamed as "RTE_IOVA_IN_MBUF"
> in order to be more accurate (IOVA mode is decided at runtime),
> and more readable in the code.
> 
> Similarly the drivers are using the variable "require_iova_in_mbuf"
> instead of "pmd_supports_disable_iova_as_pa" with an opposite meaning.
> By default, it is assumed that drivers require the IOVA field in mbuf.
> The drivers which support removing this field have to declare themselves.
> Some bus drivers are declared compatible.
> 
> If the option "enable_iova_as_pa" is disabled, the unsupported drivers
> will be listed with the new reason text "requires IOVA in mbuf".
> 
> Suggested-by: Bruce Richardson <bruce.richardson@intel.com>
> Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
> Reviewed-by: Bruce Richardson <bruce.richardson@intel.com>
> Acked-by: Morten Brørup <mb@smartsharesystems.com>
> ---

...