[PATCH 4.19 108/273] PCI: Mark NVIDIA T4 GPUs to avoid bus reset

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4.19-stable review patch.  If anyone has any objections, please let me know.


From: Wu Zongyong <wuzongyong@xxxxxxxxxxxxxxxxx>

[ Upstream commit d5af729dc2071273f14cbb94abbc60608142fd83 ]

NVIDIA T4 GPUs do not work with SBR. This problem is found when the T4 card
is direct attached to a Root Port only. Avoid bus reset by marking T4 GPUs

Fixes: 4c207e7121fa ("PCI: Mark some NVIDIA GPUs to avoid bus reset")
Link: https://lore.kernel.org/r/2dcebea53a6eb9bd212ec6d8974af2e5e0333ef6.1681129861.git.wuzongyong@xxxxxxxxxxxxxxxxx
Signed-off-by: Wu Zongyong <wuzongyong@xxxxxxxxxxxxxxxxx>
Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
 drivers/pci/quirks.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index fa9d6c8f1cf89..a43e0e20b1ea6 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -3472,7 +3472,7 @@ static void quirk_no_bus_reset(struct pci_dev *dev)
 static void quirk_nvidia_no_bus_reset(struct pci_dev *dev)
-	if ((dev->device & 0xffc0) == 0x2340)
+	if ((dev->device & 0xffc0) == 0x2340 || dev->device == 0x1eb8)

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