eal: force IOVA to a particular mode

[dpdk.git] / lib / librte_eal / bsdapp / eal / eal.c

diff --git a/lib/librte_eal/bsdapp/eal/eal.c b/lib/librte_eal/bsdapp/eal/eal.c
index 21997ce..508cbc4 100644 (file)
--- a/lib/librte_eal/bsdapp/eal/eal.c
+++ b/lib/librte_eal/bsdapp/eal/eal.c
@@ -656,8 +656,15 @@ rte_eal_init(int argc, char **argv)
                return -1;
        }
 
-       /* autodetect the iova mapping mode (default is iova_pa) */
-       rte_eal_get_configuration()->iova_mode = rte_bus_get_iommu_class();
+       /* if no EAL option "--iova-mode=<pa|va>", use bus IOVA scheme */
+       if (internal_config.iova_mode == RTE_IOVA_DC) {
+               /* autodetect the IOVA mapping mode (default is RTE_IOVA_PA) */
+               rte_eal_get_configuration()->iova_mode =
+                       rte_bus_get_iommu_class();
+       } else {
+               rte_eal_get_configuration()->iova_mode =
+                       internal_config.iova_mode;
+       }
 
        if (internal_config.no_hugetlbfs == 0) {
                /* rte_config isn't initialized yet */