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UFS 5.0 / JEDEC 220H introduces the AGGREGATED READ query opcode (0x9), which retrieves an aggregated data packet in a single query request. The packet may bundle multiple Descriptors, Attributes and Flags as group-headed groups, returned in the Data Segment of the QUERY RESPONSE UPIU. Such a packet can be far larger than a single descriptor (up to a few KiB vs the 255-byte descriptor limit), so its response UPIU buffer must be enlarged. Enlarging the shared utp_transfer_cmd_desc would waste that extra space per tag, so add a dedicated utp_devman_cmd_desc with a 4 KiB response area (ALIGNED_DEVMAN_RSP_SIZE), allocated once for the reserved (device management) tag that aggregated read uses. Regular tags keep the 512-byte descriptor in a pool of (nutrs - UFSHCD_NUM_RESERVED) entries, leaving normal I/O unchanged. ufshcd_init_lrb() and ufshcd_host_memory_configure() pick the devman descriptor for the reserved tag and index the pool at (tag - UFSHCD_NUM_RESERVED) otherwise. The pre-4.1 MCQ tag recovery adds one compare against the devman UCD address and returns the reserved tag (UFSHCI 4.1+ carries the tag in the CQE), and the BSG raw-UPIU and device management paths learn the new opcode, sizing descriptors by QUERY_AGGREGATED_MAX_SIZE. Signed-off-by: Hyeoncheol Jeong <hyenc.jeong@samsung.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Link: https://patch.msgid.link/20260728092741epcms2p8c53432ef3c2f0d6a63dd980ad5ef9f00@epcms2p8 Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>