On Thu, Jan 19, 2017 at 05:36:36PM +0300, Aleksey Makarov wrote: > It is the time we have the real 16-bit Stream ID user, which is the > ThunderX. Its IO topology uses 1:1 map for Requester ID to Stream ID > translation for each root complex which allows to get full 16-bit > Stream ID. Firmware assigns bus IDs that are greater than 128 (0x80) > to some buses under PEM (external PCIe interface). Eventually SMMU > drops devices on that buses because their Stream ID is out of range: > > pci 0006:90:00.0: stream ID 0x9000 out of range for SMMU (0x7fff) > > To fix above issue enable the Extended Stream ID optional feature > when available. > > Reviewed-by: Tomasz Nowicki <tomasz.nowi...@caviumnetworks.com> > Signed-off-by: Aleksey Makarov <aleksey.maka...@linaro.org> > Tested-by: Tomasz Nowicki <tomasz.nowi...@caviumnetworks.com> > --- > v4: > change the commit message: > - explain the reason why the warning happens (Tomasz Nowicki) > - add 'Reviewed-by' and 'Tested-by' from Tomasz Nowicki
Thanks, I'll queue this for 4.11. Will _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
