diff options
| author | Rohit Ner <rohitner@google.com> | 2024-02-20 01:56:37 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-05-17 12:02:08 +0200 |
| commit | ff54c87f32f23b81c94910fb7d0201634d901cba (patch) | |
| tree | b6e250ff70ca7aa6bd6fc8b5821fb9608fa5df6b /drivers/ufs | |
| parent | 8d6a1c8e3de36cb0f5e866f1a582b00939e23104 (diff) | |
| download | linux-ff54c87f32f23b81c94910fb7d0201634d901cba.tar.gz linux-ff54c87f32f23b81c94910fb7d0201634d901cba.tar.bz2 linux-ff54c87f32f23b81c94910fb7d0201634d901cba.zip | |
scsi: ufs: core: Fix MCQ MAC configuration
[ Upstream commit 767712f91de76abd22a45184e6e3440120b8bfce ]
As per JEDEC Standard No. 223E Section 5.9.2, the max # active commands
value programmed by the host sw in MCQConfig.MAC should be one less than
the actual value.
Signed-off-by: Rohit Ner <rohitner@google.com>
Link: https://lore.kernel.org/r/20240220095637.2900067-1-rohitner@google.com
Reviewed-by: Peter Wang <peter.wang@mediatek.com>
Reviewed-by: Can Guo <quic_cang@quicinc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/ufs')
| -rw-r--r-- | drivers/ufs/core/ufs-mcq.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/ufs/core/ufs-mcq.c b/drivers/ufs/core/ufs-mcq.c index 0787456c2b89..c873fd823942 100644 --- a/drivers/ufs/core/ufs-mcq.c +++ b/drivers/ufs/core/ufs-mcq.c @@ -94,7 +94,7 @@ void ufshcd_mcq_config_mac(struct ufs_hba *hba, u32 max_active_cmds) val = ufshcd_readl(hba, REG_UFS_MCQ_CFG); val &= ~MCQ_CFG_MAC_MASK; - val |= FIELD_PREP(MCQ_CFG_MAC_MASK, max_active_cmds); + val |= FIELD_PREP(MCQ_CFG_MAC_MASK, max_active_cmds - 1); ufshcd_writel(hba, val, REG_UFS_MCQ_CFG); } EXPORT_SYMBOL_GPL(ufshcd_mcq_config_mac); |