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CONFIG_SCSI_UFS_HPB: Support UFS Host Performance Booster

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The Linux kernel configuration item CONFIG_SCSI_UFS_HPB:

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The UFS HPB feature improves random read performance. It caches L2P (logical to physical) map of UFS to host DRAM. The driver uses HPB read command by piggybacking physical page number for bypassing FTL (flash translation layer)'s L2P address translation.



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