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nvme-apple: Reset q->sq_tail during queue init

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Fixes a "duplicate tag error for tag 0" firmware crash during controller
reset while setting up a  queue on Apple A11 / T8015 caused by stale
entries in the submission queue due to an invalid sq_tail offset after
reset.

Fixes: 04d8ecf37b ("nvme: apple: Add Apple A11 support")
Cc: stable@vger.kernel.org
Suggested-by: Yuriy Havrylyuk <yhavry@gmail.com>
Reviewed-by: Sven Peter <sven@kernel.org>
Signed-off-by: Nick Chan <towinchenmi@gmail.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
This commit is contained in:
Nick Chan 2026-05-14 21:16:01 +08:00 committed by Keith Busch
parent 37953cec77
commit a6ab75639e
1 changed files with 1 additions and 0 deletions
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1
drivers/nvme/host/apple.c
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@ -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)