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| author | Minwoo Im <minwoo.im@samsung.com> | 2024-06-01 06:22:43 +0900 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2024-06-04 22:14:20 -0400 |
| commit | 175d1825ca4d2288fee734ada0955a1e36dd50e6 (patch) | |
| tree | 326e8c75170b9cd4079b39675594ce3ec637bf95 /include/ufs | |
| parent | e8a1d87b7983b461d1d625e2973cdaadc0bd8ff5 (diff) | |
| download | lwn-175d1825ca4d2288fee734ada0955a1e36dd50e6.tar.gz lwn-175d1825ca4d2288fee734ada0955a1e36dd50e6.zip | |
scsi: ufs: pci: Add support MCQ for QEMU-based UFS
Recently, ufs-mcq feature has been introduced to QEMU hw/ufs device [1].
This patch adds MCQ support for upstream QEMU UFS PCI controller. This
patch provides mandatory vops callbacks to make UFS controller work
properly on MCQ mode. Operation and Runtime Config register stride is
fixed to 48bytes which is implemented by qemu.
[1] https://lore.kernel.org/qemu-devel/cover.1716876237.git.jeuk20.kim@samsung.com/
Signed-off-by: Minwoo Im <minwoo.im@samsung.com>
Link: https://lore.kernel.org/r/20240531212244.1593535-2-minwoo.im@samsung.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'include/ufs')
| -rw-r--r-- | include/ufs/ufshcd.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h index df68fb1d4f3f..9e0581115b34 100644 --- a/include/ufs/ufshcd.h +++ b/include/ufs/ufshcd.h @@ -1278,6 +1278,7 @@ void ufshcd_update_evt_hist(struct ufs_hba *hba, u32 id, u32 val); void ufshcd_hba_stop(struct ufs_hba *hba); void ufshcd_schedule_eh_work(struct ufs_hba *hba); void ufshcd_mcq_config_mac(struct ufs_hba *hba, u32 max_active_cmds); +unsigned int ufshcd_mcq_queue_cfg_addr(struct ufs_hba *hba); u32 ufshcd_mcq_read_cqis(struct ufs_hba *hba, int i); void ufshcd_mcq_write_cqis(struct ufs_hba *hba, u32 val, int i); unsigned long ufshcd_mcq_poll_cqe_lock(struct ufs_hba *hba, |