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From: Nithin Dabilpuram <ndabilpuram@marvell.com>
To: <anatoly.burakov@intel.com>
Cc: <jerinj@marvell.com>, <dev@dpdk.org>,
	Nithin Dabilpuram <ndabilpuram@marvell.com>
Subject: [dpdk-dev] [PATCH v2 3/3] test: add test case to validate VFIO DMA map/unmap
Date: Thu, 5 Nov 2020 14:34:23 +0530
Message-ID: <20201105090423.11954-4-ndabilpuram@marvell.com> (raw)
In-Reply-To: <20201105090423.11954-1-ndabilpuram@marvell.com>

Test case mmap's system pages and tries to performs a user
DMA map and unmap both partially and fully.

Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
---
 app/test/meson.build |   1 +
 app/test/test_vfio.c | 103 +++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 104 insertions(+)
 create mode 100644 app/test/test_vfio.c

diff --git a/app/test/meson.build b/app/test/meson.build
index 88c831a..b0411ee 100644
--- a/app/test/meson.build
+++ b/app/test/meson.build
@@ -139,6 +139,7 @@ test_sources = files('commands.c',
 	'test_trace_register.c',
 	'test_trace_perf.c',
 	'test_version.c',
+	'test_vfio.c',
 	'virtual_pmd.c'
 )
 
diff --git a/app/test/test_vfio.c b/app/test/test_vfio.c
new file mode 100644
index 0000000..00626d4
--- /dev/null
+++ b/app/test/test_vfio.c
@@ -0,0 +1,103 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(C) 2020 Marvell.
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <unistd.h>
+
+#include <rte_common.h>
+#include <rte_eal.h>
+#include <rte_eal_paging.h>
+#include <rte_errno.h>
+#include <rte_memory.h>
+#include <rte_vfio.h>
+
+#include "test.h"
+
+static int
+test_memory_vfio_dma_map(void)
+{
+	uint64_t sz1, sz2, sz = 2 * rte_mem_page_size();
+	uint64_t unmap1, unmap2;
+	uint8_t *mem;
+	int ret;
+
+	/* Allocate twice size of page */
+	mem = mmap(NULL, sz, PROT_READ | PROT_WRITE,
+		   MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	if (mem == MAP_FAILED) {
+		printf("Failed to allocate memory for external heap\n");
+		return -1;
+	}
+
+	/* Force page allocation */
+	memset(mem, 0, sz);
+
+	/* map the whole region */
+	ret = rte_vfio_container_dma_map(RTE_VFIO_DEFAULT_CONTAINER_FD,
+					 (uintptr_t)mem, (rte_iova_t)mem, sz);
+	if (ret) {
+		/* Check if VFIO is not available or no device is probed */
+		if (rte_errno == ENOTSUP || rte_errno == ENODEV) {
+			ret = 1;
+			goto fail;
+		}
+		printf("Failed to dma map whole region, ret=%d(%s)\n",
+		       ret, rte_strerror(rte_errno));
+		goto fail;
+	}
+
+	unmap1 = (uint64_t)mem + (sz / 2);
+	sz1 = sz / 2;
+	unmap2 = (uint64_t)mem;
+	sz2 = sz / 2;
+	/* unmap the partial region */
+	ret = rte_vfio_container_dma_unmap(RTE_VFIO_DEFAULT_CONTAINER_FD,
+					   unmap1, (rte_iova_t)unmap1, sz1);
+	if (ret) {
+		if (rte_errno == ENOTSUP) {
+			printf("Partial dma unmap not supported\n");
+			unmap2 = (uint64_t)mem;
+			sz2 = sz;
+		} else {
+			printf("Failed to unmap second half region, ret=%d(%s)\n",
+			       ret, rte_strerror(rte_errno));
+			goto fail;
+		}
+	}
+
+	/* unmap the remaining region */
+	ret = rte_vfio_container_dma_unmap(RTE_VFIO_DEFAULT_CONTAINER_FD,
+					   unmap2, (rte_iova_t)unmap2, sz2);
+	if (ret) {
+		printf("Failed to unmap remaining region, ret=%d(%s)\n", ret,
+		       rte_strerror(rte_errno));
+		goto fail;
+	}
+
+fail:
+	munmap(mem, sz);
+	return ret;
+}
+
+static int
+test_vfio(void)
+{
+	int ret;
+
+	/* test for vfio dma map/unmap */
+	ret = test_memory_vfio_dma_map();
+	if (ret == 1) {
+		printf("VFIO dma map/unmap unsupported\n");
+	} else if (ret < 0) {
+		printf("Error vfio dma map/unmap, ret=%d\n", ret);
+		return -1;
+	}
+
+	return 0;
+}
+
+REGISTER_TEST_COMMAND(vfio_autotest, test_vfio);
-- 
2.8.4


  parent reply	other threads:[~2020-11-05  9:05 UTC|newest]

Thread overview: 72+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-12  8:11 [dpdk-dev] [PATCH 0/2] fix issue with partial DMA unmap Nithin Dabilpuram
2020-10-12  8:11 ` [dpdk-dev] [PATCH 1/2] test: add test case to validate VFIO DMA map/unmap Nithin Dabilpuram
2020-10-14 14:39   ` Burakov, Anatoly
2020-10-15  9:54     ` [dpdk-dev] [EXT] " Nithin Dabilpuram
2020-10-12  8:11 ` [dpdk-dev] [PATCH 2/2] vfio: fix partial DMA unmapping for VFIO type1 Nithin Dabilpuram
2020-10-14 15:07   ` Burakov, Anatoly
2020-10-15  6:09     ` [dpdk-dev] [EXT] " Nithin Dabilpuram
2020-10-15 10:00       ` Burakov, Anatoly
2020-10-15 11:38         ` Nithin Dabilpuram
2020-10-15 11:50         ` Nithin Dabilpuram
2020-10-15 11:57         ` Nithin Dabilpuram
2020-10-15 15:10           ` Burakov, Anatoly
2020-10-16  7:10             ` Nithin Dabilpuram
2020-10-17 16:14               ` Burakov, Anatoly
2020-10-19  9:43                 ` Nithin Dabilpuram
2020-10-22 12:13                   ` Nithin Dabilpuram
2020-10-28 13:04                     ` Burakov, Anatoly
2020-10-28 14:17                       ` Nithin Dabilpuram
2020-10-28 16:07                         ` Burakov, Anatoly
2020-10-28 16:31                           ` Nithin Dabilpuram
2020-11-05  9:04 ` [dpdk-dev] [PATCH v2 0/3] fix issue with partial DMA unmap Nithin Dabilpuram
2020-11-05  9:04   ` [dpdk-dev] [PATCH v2 1/3] vfio: revert changes for map contiguous areas in one go Nithin Dabilpuram
2020-11-05  9:04   ` [dpdk-dev] [PATCH v2 2/3] vfio: fix DMA mapping granularity for type1 iova as va Nithin Dabilpuram
2020-11-10 14:04     ` Burakov, Anatoly
2020-11-10 14:22       ` Burakov, Anatoly
2020-11-10 14:17     ` Burakov, Anatoly
2020-11-11  5:08       ` Nithin Dabilpuram
2020-11-11 10:00         ` Burakov, Anatoly
2020-11-05  9:04   ` Nithin Dabilpuram [this message]
2020-12-01 19:32 ` [dpdk-dev] [PATCH v3 0/4] fix issue with partial DMA unmap Nithin Dabilpuram
2020-12-01 19:32   ` [dpdk-dev] [PATCH v3 1/4] vfio: revert changes for map contiguous areas in one go Nithin Dabilpuram
2020-12-01 19:33   ` [dpdk-dev] [PATCH v3 2/4] vfio: fix DMA mapping granularity for type1 IOVA as VA Nithin Dabilpuram
2020-12-01 19:33   ` [dpdk-dev] [PATCH v3 3/4] test: add test case to validate VFIO DMA map/unmap Nithin Dabilpuram
2020-12-01 19:33   ` [dpdk-dev] [PATCH v3 4/4] test: change external memory test to use system page sz Nithin Dabilpuram
2020-12-01 23:23     ` David Christensen
2020-12-02  5:40       ` Nithin Dabilpuram
2020-12-02  5:46 ` [dpdk-dev] [PATCH v4 0/4] fix issue with partial DMA unmap Nithin Dabilpuram
2020-12-02  5:46   ` [dpdk-dev] [PATCH v4 1/4] vfio: revert changes for map contiguous areas in one go Nithin Dabilpuram
2020-12-02 18:36     ` David Christensen
2020-12-02  5:46   ` [dpdk-dev] [PATCH v4 2/4] vfio: fix DMA mapping granularity for type1 IOVA as VA Nithin Dabilpuram
2020-12-02 18:38     ` David Christensen
2020-12-02  5:46   ` [dpdk-dev] [PATCH v4 3/4] test: add test case to validate VFIO DMA map/unmap Nithin Dabilpuram
2020-12-02 19:23     ` David Christensen
2020-12-03  7:14       ` Nithin Dabilpuram
2020-12-14  8:24         ` Nithin Dabilpuram
2020-12-02  5:46   ` [dpdk-dev] [PATCH v4 4/4] test: change external memory test to use system page sz Nithin Dabilpuram
2020-12-14  8:19 ` [dpdk-dev] [PATCH v5 0/4] fix issue with partial DMA unmap Nithin Dabilpuram
2020-12-14  8:19   ` [dpdk-dev] [PATCH v5 1/4] vfio: revert changes for map contiguous areas in one go Nithin Dabilpuram
2020-12-14  8:19   ` [dpdk-dev] [PATCH v5 2/4] vfio: fix DMA mapping granularity for type1 IOVA as VA Nithin Dabilpuram
2020-12-14  8:19   ` [dpdk-dev] [PATCH v5 3/4] test: add test case to validate VFIO DMA map/unmap Nithin Dabilpuram
2020-12-14  8:19   ` [dpdk-dev] [PATCH v5 4/4] test: change external memory test to use system page sz Nithin Dabilpuram
2020-12-17 19:06 ` [dpdk-dev] [PATCH v6 0/4] fix issue with partial DMA unmap Nithin Dabilpuram
2020-12-17 19:06   ` [dpdk-dev] [PATCH v6 1/4] vfio: revert changes for map contiguous areas in one go Nithin Dabilpuram
2020-12-17 19:06   ` [dpdk-dev] [PATCH v6 2/4] vfio: fix DMA mapping granularity for type1 IOVA as VA Nithin Dabilpuram
2020-12-17 19:06   ` [dpdk-dev] [PATCH v6 3/4] test: add test case to validate VFIO DMA map/unmap Nithin Dabilpuram
2020-12-17 19:10     ` Nithin Dabilpuram
2021-01-05 19:33       ` David Christensen
2021-01-06  8:40         ` Nithin Dabilpuram
2021-01-06 21:20           ` David Christensen
2020-12-17 19:06   ` [dpdk-dev] [PATCH v6 4/4] test: change external memory test to use system page sz Nithin Dabilpuram
2020-12-23  5:13   ` [dpdk-dev] [PATCH v6 0/4] fix issue with partial DMA unmap Nithin Dabilpuram
2021-01-04 22:29     ` David Christensen
2021-01-12 17:39 ` [dpdk-dev] [PATCH v7 0/3] " Nithin Dabilpuram
2021-01-12 17:39   ` [dpdk-dev] [PATCH v7 1/3] vfio: revert changes for map contiguous areas in one go Nithin Dabilpuram
2021-01-12 17:39   ` [dpdk-dev] [PATCH v7 2/3] vfio: fix DMA mapping granularity for type1 IOVA as VA Nithin Dabilpuram
2021-01-12 17:39   ` [dpdk-dev] [PATCH v7 3/3] test: change external memory test to use system page sz Nithin Dabilpuram
2021-01-14 16:30     ` David Marchand
2021-01-15  6:57       ` Nithin Dabilpuram
2021-01-15  7:32 ` [dpdk-dev] [PATCH v8 0/3] fix issue with partial DMA unmap Nithin Dabilpuram
2021-01-15  7:32   ` [dpdk-dev] [PATCH v8 1/3] vfio: revert changes for map contiguous areas in one go Nithin Dabilpuram
2021-01-15  7:32   ` [dpdk-dev] [PATCH v8 2/3] vfio: fix DMA mapping granularity for type1 IOVA as VA Nithin Dabilpuram
2021-01-15  7:32   ` [dpdk-dev] [PATCH v8 3/3] test: change external memory test to use system page sz Nithin Dabilpuram

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