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From: Anoob Joseph <anoobj@marvell.com>
To: Vipin Varghese <vipin.varghese@amd.com>
CC: "Ferruh.Yigit@amd.com" <Ferruh.Yigit@amd.com>, "cheng1.jiang@intel.com"
<cheng1.jiang@intel.com>, "stable@dpdk.org" <stable@dpdk.org>,
"thomas@monjalon.net" <thomas@monjalon.net>, "dev@dpdk.org" <dev@dpdk.org>,
Jerin Jacob Kollanukkaran <jerinj@marvell.com>
Subject: RE: [EXT] [PATCH v2] app/dma-perf: fix physical address seg-fault
Thread-Topic: [EXT] [PATCH v2] app/dma-perf: fix physical address seg-fault
Thread-Index: AQHZ0CYAkn5wbNc32kel0/ICs5lFIa/svTlA
Date: Wed, 16 Aug 2023 10:46:39 +0000
Message-ID: <PH0PR18MB4672028DF8781F3179A4191BDF15A@PH0PR18MB4672.namprd18.prod.outlook.com>
References: <20230816071810.1796-1-vipin.varghese@amd.com>
<20230816094216.1847-1-vipin.varghese@amd.com>
In-Reply-To: <20230816094216.1847-1-vipin.varghese@amd.com>
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> 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.
>=20
> This fix invokes `rte_pktmbuf_mtod` for both src and dst.
>=20
> Bugzilla ID: 1269
> Fixes: 623dc9364dc6 ("app/dma-perf: introduce DMA performance test")
> Cc: cheng1.jiang@intel.com
>=20
> Cc: stable@dpdk.org
>=20
> Signed-off-by: Vipin Varghese <vipin.varghese@amd.com>
> Suggested-by: Anoob Joseph <anoobj@marvell.com>
Acked-by: Anoob Joseph <anoobj@marvell.com>