On 14/02/2022 17:29, John Garry wrote:
Hi guys,
And a friendly reminder on this series also.
Cheers,
john
For streaming DMA mappings involving an IOMMU and whose IOVA len regularly
exceeds the IOVA rcache upper limit (meaning that they are not cached),
performance can be reduced.
This may b
For streaming DMA mappings involving an IOMMU and whose IOVA len regularly
exceeds the IOVA rcache upper limit (meaning that they are not cached),
performance can be reduced.
This may be much more pronounced from commit 4e89dce72521 ("iommu/iova:
Retry from last rb tree node if iova search fails"
