Commit 636d73da authored by Ben Hutchings's avatar Ben Hutchings

sfc: Improve test for IOMMU in use

The device::iommu_group field may be set even if no IOMMU is in use.
iommu_present() is still a better indicator, although it doesn't tell
us whether *our* device is affected.
Reported-by: default avatarAlex Williamson <alex.williamson@redhat.com>
Signed-off-by: default avatarBen Hutchings <bhutchings@solarflare.com>
parent 1899c111
...@@ -677,7 +677,7 @@ static void efx_init_rx_recycle_ring(struct efx_nic *efx, ...@@ -677,7 +677,7 @@ static void efx_init_rx_recycle_ring(struct efx_nic *efx,
#ifdef CONFIG_PPC64 #ifdef CONFIG_PPC64
bufs_in_recycle_ring = EFX_RECYCLE_RING_SIZE_IOMMU; bufs_in_recycle_ring = EFX_RECYCLE_RING_SIZE_IOMMU;
#else #else
if (efx->pci_dev->dev.iommu_group) if (iommu_present(&pci_bus_type))
bufs_in_recycle_ring = EFX_RECYCLE_RING_SIZE_IOMMU; bufs_in_recycle_ring = EFX_RECYCLE_RING_SIZE_IOMMU;
else else
bufs_in_recycle_ring = EFX_RECYCLE_RING_SIZE_NOIOMMU; bufs_in_recycle_ring = EFX_RECYCLE_RING_SIZE_NOIOMMU;
......
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