linux-kernel - [PATCH AUTOSEL 5.17 11/20] nvme-pci: avoid the deepest sleep state on ZHITAI TiPro7000 SSDs

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Message-Id: <20220621205010.250185-11-sashal@kernel.org>
Date:   Tue, 21 Jun 2022 16:50:01 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Ning Wang <ningwang35@...look.com>, Christoph Hellwig <hch@....de>,
        Sasha Levin <sashal@...nel.org>, kbusch@...nel.org,
        axboe@...com, sagi@...mberg.me, linux-nvme@...ts.infradead.org
Subject: [PATCH AUTOSEL 5.17 11/20] nvme-pci: avoid the deepest sleep state on ZHITAI TiPro7000 SSDs

From: Ning Wang <ningwang35@...look.com>

[ Upstream commit 6b961bce50e489186232cef51036ddb8d672bc3b ]

When ZHITAI TiPro7000 SSDs entered deepest power state(ps4)
it has the same APST sleep problem as Kingston A2000.
by chance the system crashes and displays the same dmesg info:

https://bugzilla.kernel.org/show_bug.cgi?id=195039#c65

As the Archlinux wiki suggest (enlat + exlat) < 25000 is fine
and my testing shows no system crashes ever since.
Therefore disabling the deepest power state will fix the APST sleep issue.

https://wiki.archlinux.org/title/Solid_state_drive/NVMe

This is the APST data from 'nvme id-ctrl /dev/nvme1'

NVME Identify Controller:
vid       : 0x1e49
ssvid     : 0x1e49
sn        : [...]
mn        : ZHITAI TiPro7000 1TB
fr        : ZTA32F3Y
[...]
ps    0 : mp:3.50W operational enlat:5 exlat:5 rrt:0 rrl:0
          rwt:0 rwl:0 idle_power:- active_power:-
ps    1 : mp:3.30W operational enlat:50 exlat:100 rrt:1 rrl:1
          rwt:1 rwl:1 idle_power:- active_power:-
ps    2 : mp:2.80W operational enlat:50 exlat:200 rrt:2 rrl:2
          rwt:2 rwl:2 idle_power:- active_power:-
ps    3 : mp:0.1500W non-operational enlat:500 exlat:5000 rrt:3 rrl:3
          rwt:3 rwl:3 idle_power:- active_power:-
ps    4 : mp:0.0200W non-operational enlat:2000 exlat:60000 rrt:4 rrl:4
          rwt:4 rwl:4 idle_power:- active_power:-

Signed-off-by: Ning Wang <ningwang35@...look.com>
Signed-off-by: Christoph Hellwig <hch@....de>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/nvme/host/pci.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 5934abc24fb3..70dc05c60f2b 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -3466,6 +3466,8 @@ static const struct pci_device_id nvme_id_table[] = {
 		.driver_data = NVME_QUIRK_BOGUS_NID, },
 	{ PCI_DEVICE(0x1cc1, 0x5350),   /* ADATA XPG GAMMIX S50 */
 		.driver_data = NVME_QUIRK_BOGUS_NID, },
+	{ PCI_DEVICE(0x1e49, 0x0041),   /* ZHITAI TiPro7000 NVMe SSD */
+		.driver_data = NVME_QUIRK_NO_DEEPEST_PS, },
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMAZON, 0x0061),
 		.driver_data = NVME_QUIRK_DMA_ADDRESS_BITS_48, },
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMAZON, 0x0065),
-- 
2.35.1