[dpdk-dev] [PATCH v3 3/4] lib/eal: add API to check iommu type is set
Chaitanya Babu Talluri
tallurix.chaitanya.babu at intel.com
Tue Aug 27 13:57:10 CEST 2019
Add rte_vfio_iommu_type_is_set() to check IOMMU
type for default container.
Signed-off-by: Chaitanya Babu Talluri <tallurix.chaitanya.babu at intel.com>
---
lib/librte_eal/common/include/rte_vfio.h | 10 ++++++++++
lib/librte_eal/linux/eal/eal_vfio.c | 16 ++++++++++++++++
2 files changed, 26 insertions(+)
diff --git a/lib/librte_eal/common/include/rte_vfio.h b/lib/librte_eal/common/include/rte_vfio.h
index b360485fa..a62006e5a 100644
--- a/lib/librte_eal/common/include/rte_vfio.h
+++ b/lib/librte_eal/common/include/rte_vfio.h
@@ -397,6 +397,16 @@ int
rte_vfio_container_dma_unmap(int container_fd, uint64_t vaddr,
uint64_t iova, uint64_t len);
+/**
+ * Check VFIO IOMMU Type is set for default container.
+ *
+ * @return
+ * 0 if successful
+ * <0 if failed
+ */
+int
+rte_vfio_iommu_type_is_set(void);
+
#ifdef __cplusplus
}
#endif
diff --git a/lib/librte_eal/linux/eal/eal_vfio.c b/lib/librte_eal/linux/eal/eal_vfio.c
index 04c284cb2..a5bb1cff4 100644
--- a/lib/librte_eal/linux/eal/eal_vfio.c
+++ b/lib/librte_eal/linux/eal/eal_vfio.c
@@ -2071,6 +2071,17 @@ rte_vfio_container_dma_unmap(int container_fd, uint64_t vaddr, uint64_t iova,
return container_dma_unmap(vfio_cfg, vaddr, iova, len);
}
+int
+rte_vfio_iommu_type_is_set(void)
+{
+ if (vfio_get_iommu_type() < 0) {
+ RTE_LOG(ERR, EAL, "VFIO IOMMU Type is not set\n");
+ return -1;
+ }
+
+ return 0;
+}
+
#else
int
@@ -2191,4 +2202,9 @@ rte_vfio_container_dma_unmap(__rte_unused int container_fd,
return -1;
}
+int
+rte_vfio_iommu_type_is_set(void)
+{
+ return -1;
+}
#endif /* VFIO_PRESENT */
--
2.17.2
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