Kernel/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2025-01-01 10:45:49 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

scsi: ufs: core: Fix MCQ MAC configuration

Browse Source 
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>
This commit is contained in:
Rohit Ner 2024-02-20 01:56:37 -08:00 committed by Martin K. Petersen
parent 517bcc2b4d
commit 767712f91d
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/ufs/core/ufs-mcq.c
View File

@ -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);