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From: Jonas Pfefferle <jpf@zurich.ibm.com>
To: dev@dpdk.org
Cc: thomas@monjalon.net, anatoly.burakov@intel.com,
Jonas Pfefferle <jpf@zurich.ibm.com>
Date: Fri, 3 Nov 2017 13:05:19 +0100
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Subject: [dpdk-dev] [PATCH] pci: get IOMMU class sPAPR iommu fix
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PPC64 sPAPR iommu does not support iova as va.
Use pa mode instead.
Signed-off-by: Jonas Pfefferle <jpf@zurich.ibm.com>
---
drivers/bus/pci/linux/pci.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/bus/pci/linux/pci.c b/drivers/bus/pci/linux/pci.c
index cdf8106..6a58c5f 100644
--- a/drivers/bus/pci/linux/pci.c
+++ b/drivers/bus/pci/linux/pci.c
@@ -586,6 +586,12 @@ rte_pci_get_iommu_class(void)
bool is_vfio_noiommu_enabled = true;
bool has_iova_va;
bool is_bound_uio;
+ bool spapr_iommu =
+#if defined(RTE_ARCH_PPC64)
+ true;
+#else
+ false;
+#endif
is_bound = pci_one_device_is_bound();
if (!is_bound)
@@ -598,7 +604,8 @@ rte_pci_get_iommu_class(void)
true : false;
#endif
- if (has_iova_va && !is_bound_uio && !is_vfio_noiommu_enabled)
+ if (has_iova_va && !is_bound_uio && !is_vfio_noiommu_enabled &&
+ !spapr_iommu)
return RTE_IOVA_VA;
if (has_iova_va) {
@@ -607,6 +614,8 @@ rte_pci_get_iommu_class(void)
RTE_LOG(WARNING, EAL, "vfio-noiommu mode configured\n");
if (is_bound_uio)
RTE_LOG(WARNING, EAL, "few device bound to UIO\n");
+ if (spapr_iommu)
+ RTE_LOG(WARNING, EAL, "sPAPR iommu does not support iova as va\n");
}
return RTE_IOVA_PA;
--
2.7.4