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Message-Id: <20240531103821.1583934-1-minwoo.im@samsung.com>
Date: Fri, 31 May 2024 19:38:18 +0900
From: Minwoo Im <minwoo.im@...sung.com>
To: "James E . J . Bottomley" <James.Bottomley@...senPartnership.com>,
	"Martin K . Petersen" <martin.petersen@...cle.com>
Cc: Alim Akhtar <alim.akhtar@...sung.com>, Avri Altman
	<avri.altman@....com>, Bart Van Assche <bvanassche@....org>, Minwoo Im
	<minwoo.im@...sung.com>, gost.dev@...sung.com, linux-scsi@...r.kernel.org,
	linux-kernel@...r.kernel.org, Jeuk Kim <jeuk20.kim@...sung.com>
Subject: [PATCH 0/3] ufs: pci: Add support UFSHCI 4.0 MCQ

This patchset introduces add support for MCQ introduced in UFSHCI 4.0.  The
first patch adds a simple helper to get the address of MCQ queue config
registers.  The second one enables MCQ feature by adding mandatory vops
callback functions required at MCQ initialization phase.  The last one is to
prevent a case where number of MCQ is given 1 since driver allocates poll_queues
first rather than I/O queues to handle device commands.  Instead of causing
exception handlers due to no I/O queue, failfast during the initialization time.

Minwoo Im (3):
  ufs: mcq: Add ufshcd_mcq_queue_cfg_addr helper
  ufs: pci: Add support MCQ for QEMU-based UFS
  ufs: mcq: Prevent no I/O queue case for MCQ

 drivers/ufs/core/ufs-mcq.c    | 23 +++++++++++++++++
 drivers/ufs/host/ufshcd-pci.c | 48 ++++++++++++++++++++++++++++++++++-
 include/ufs/ufshcd.h          |  1 +
 3 files changed, 71 insertions(+), 1 deletion(-)

-- 
2.34.1


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