[dpdk-dev] [PATCH v2 07/12] linuxapp/eal: auto detect iova mode
Santosh Shukla
santosh.shukla at caviumnetworks.com
Mon Jul 10 13:42:30 CEST 2017
- Moving late bus scanning to up..just after eal_parsing.
- Auto detect iova mapping mode, based on the result of
rte_bus_scan_iommu_class.
Signed-off-by: Santosh Shukla <santosh.shukla at caviumnetworks.com>
Signed-off-by: Jerin Jacob <jerin.jacob at caviumnetworks.com>
---
lib/librte_eal/linuxapp/eal/eal.c | 16 ++++++++++------
1 file changed, 10 insertions(+), 6 deletions(-)
diff --git a/lib/librte_eal/linuxapp/eal/eal.c b/lib/librte_eal/linuxapp/eal/eal.c
index 2546b55e4..7b4dd70de 100644
--- a/lib/librte_eal/linuxapp/eal/eal.c
+++ b/lib/librte_eal/linuxapp/eal/eal.c
@@ -799,6 +799,16 @@ rte_eal_init(int argc, char **argv)
return -1;
}
+ if (rte_bus_scan()) {
+ rte_eal_init_alert("Cannot scan the buses for devices\n");
+ rte_errno = ENODEV;
+ return -1;
+ }
+
+ /* autodetect the iova mapping mode (default is iova_pa) */
+ if (rte_bus_get_iommu_class() == RTE_IOVA_VA)
+ rte_eal_get_configuration()->iova_mode = RTE_IOVA_VA;
+
if (internal_config.no_hugetlbfs == 0 &&
internal_config.process_type != RTE_PROC_SECONDARY &&
internal_config.xen_dom0_support == 0 &&
@@ -896,12 +906,6 @@ rte_eal_init(int argc, char **argv)
return -1;
}
- if (rte_bus_scan()) {
- rte_eal_init_alert("Cannot scan the buses for devices\n");
- rte_errno = ENODEV;
- return -1;
- }
-
RTE_LCORE_FOREACH_SLAVE(i) {
/*
--
2.13.0
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