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Subject: Re: [PATCH v3] app/dma-perf: fix physical address seg-fault
To: Vipin Varghese <vipin.varghese@amd.com>, <cheng1.jiang@intel.com>,
 <stable@dpdk.org>, <anoobj@marvell.com>, <jerinj@marvell.com>, <dev@dpdk.org>
References: <20231019041607.570-1-vipin.varghese@amd.com>
From: fengchengwen <fengchengwen@huawei.com>
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Date: Thu, 19 Oct 2023 15:13:59 +0800
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Acked-by: Chengwen Feng <fengchengwen@huawei.com>

On 2023/10/19 12:16, Vipin Varghese wrote:
> do_cpu_mem_copy uses DPDK API rte_mbuf_data_iova to return
> the start of the virtual address for both src and dst.
> But in case of iova mode set as PA, this results in seg-fault.
> This is because rte_memcpy uses VA address and not PA.
> 
> This fix invokes `rte_pktmbuf_mtod` for both src and dst.
> 
> Bugzilla ID: 1269
> Fixes: 623dc9364dc6 ("app/dma-perf: introduce DMA performance test")
> Cc: cheng1.jiang@intel.com
> 
> Cc: stable@dpdk.org
> 
> Signed-off-by: Vipin Varghese <vipin.varghese@amd.com>
> Suggested-by: Anoob Joseph <anoobj@marvell.com>
> Suggested-by: Jerin Jacob <jerinj@marvell.com>
> 
> ---

...