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bus/pci: fix IOMMU class for sPAPR

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PPC64 sPAPR iommu does not support iova as va.
Use pa mode instead.

Fixes: 815c7deaed ("pci: get IOMMU class on Linux")

Signed-off-by: Jonas Pfefferle <jpf@zurich.ibm.com>
This commit is contained in:
Jonas Pfefferle 2017-11-03 13:05:19 +01:00 committed by Thomas Monjalon
parent 2b252686ba
commit b48e0e2d9c
1 changed files with 10 additions and 1 deletions
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11
drivers/bus/pci/linux/pci.c
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@ -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;