On 24-06-01 06:22:42, Minwoo Im wrote: > 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. > > --- > v2: > - https://lore.kernel.org/linux-scsi/20240531103821.1583934-1-minwoo.im@xxxxxxxxxxx/T/#t Now the MCQ feature of hw/ufs has been pulled to QEMU [1]. You can test this patchset with [1]. [1] https://github.com/qemu/qemu/commit/5c079578d2e46df626d13eeb629c7d761a5c4e44 > - Not separate the newly introduced function from the actuall caller in the > other patch by squash the second patch to the first one (Bart). > - Rename ufs_redhat_* in ufshcd-pci.c to ufs_qemu_* to represent that it's > for QEMU UFS PCI device (Bart). > > Minwoo Im (2): > 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 >
