[PATCH] nvme-apple: Reset q->sq_tail during queue init

[PATCH] nvme-apple: Reset q->sq_tail during queue init

[Nick Chan]

Fixes controller reset on Apple A11 / T8015.

Fixes: 04d8ecf37b5e ("nvme: apple: Add Apple A11 support")
Suggested-by: Yuriy Havrylyuk <yhavry@gmail.com>
Signed-off-by: Nick Chan <towinchenmi@gmail.com>
---
 drivers/nvme/host/apple.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/nvme/host/apple.c b/drivers/nvme/host/apple.c
index 423c9c628e7b..c692fc73babf 100644
--- a/drivers/nvme/host/apple.c
+++ b/drivers/nvme/host/apple.c
@@ -1009,6 +1009,7 @@ static void apple_nvme_init_queue(struct apple_nvme_queue *q)
 	unsigned int depth = apple_nvme_queue_depth(q);
 	struct apple_nvme *anv = queue_to_apple_nvme(q);
 
+	q->sq_tail = 0;
 	q->cq_head = 0;
 	q->cq_phase = 1;
 	if (anv->hw->has_lsq_nvmmu)

---
base-commit: 5d6919055dec134de3c40167a490f33c74c12581
change-id: 20260514-nvme-apple-sq-reset-53e22e88c7b0

Best regards,
-- 
Nick Chan <towinchenmi@gmail.com>

Re: [PATCH] nvme-apple: Reset q->sq_tail during queue init

[Greg KH]

On Thu, May 14, 2026 at 08:54:59PM +0800, Nick Chan wrote:
> Fixes controller reset on Apple A11 / T8015.
> 
> Fixes: 04d8ecf37b5e ("nvme: apple: Add Apple A11 support")
> Suggested-by: Yuriy Havrylyuk <yhavry@gmail.com>
> Signed-off-by: Nick Chan <towinchenmi@gmail.com>
> ---
>  drivers/nvme/host/apple.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/nvme/host/apple.c b/drivers/nvme/host/apple.c
> index 423c9c628e7b..c692fc73babf 100644
> --- a/drivers/nvme/host/apple.c
> +++ b/drivers/nvme/host/apple.c
> @@ -1009,6 +1009,7 @@ static void apple_nvme_init_queue(struct apple_nvme_queue *q)
>  	unsigned int depth = apple_nvme_queue_depth(q);
>  	struct apple_nvme *anv = queue_to_apple_nvme(q);
>  
> +	q->sq_tail = 0;
>  	q->cq_head = 0;
>  	q->cq_phase = 1;
>  	if (anv->hw->has_lsq_nvmmu)
> 
> ---
> base-commit: 5d6919055dec134de3c40167a490f33c74c12581
> change-id: 20260514-nvme-apple-sq-reset-53e22e88c7b0
> 
> Best regards,
> -- 
> Nick Chan <towinchenmi@gmail.com>
> 
> 

Hi,

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