mirror of https://gitee.com/openkylin/linux.git
a14669ebc0
Current lightnvm and pblk implementation does not care about NVMe max data transfer size, which can be smaller than 64*K=256K. There are existing NVMe controllers which NVMe max data transfer size is lower that 256K (for example 128K, which happens for existing NVMe controllers which are NVMe spec compliant). Such a controllers are not able to handle command which contains 64 PPAs, since the the size of DMAed buffer will be above the capabilities of such a controller. Signed-off-by: Igor Konopko <igor.j.konopko@intel.com> Reviewed-by: Hans Holmberg <hans.holmberg@cnexlabs.com> Reviewed-by: Javier González <javier@javigon.com> Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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