[PATCH 5.4 042/367] platform/mellanox: Fix mlxbf-tmfifo not handling all virtio CONSOLE notifications

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


From: Shih-Yi Chen <shihyic@xxxxxxxxxx>

[ Upstream commit 0848cab765c634597636810bf76d0934003cce28 ]

rshim console does not show all entries of dmesg.

Fixed by setting MLXBF_TM_TX_LWM_IRQ for every CONSOLE notification.

Signed-off-by: Shih-Yi Chen <shihyic@xxxxxxxxxx>
Reviewed-by: Liming Sung <limings@xxxxxxxxxx>
Reviewed-by: David Thompson <davthompson@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20230821150627.26075-1-shihyic@xxxxxxxxxx
Reviewed-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
 drivers/platform/mellanox/mlxbf-tmfifo.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/platform/mellanox/mlxbf-tmfifo.c b/drivers/platform/mellanox/mlxbf-tmfifo.c
index 92bda873d44a4..4b18ebd7e850c 100644
--- a/drivers/platform/mellanox/mlxbf-tmfifo.c
+++ b/drivers/platform/mellanox/mlxbf-tmfifo.c
@@ -865,6 +865,7 @@ static bool mlxbf_tmfifo_virtio_notify(struct virtqueue *vq)
 			tm_vdev = fifo->vdev[VIRTIO_ID_CONSOLE];
 			mlxbf_tmfifo_console_output(tm_vdev, vring);
 			spin_unlock_irqrestore(&fifo->spin_lock[0], flags);
+			set_bit(MLXBF_TM_TX_LWM_IRQ, &fifo->pend_events);
 		} else if (test_and_set_bit(MLXBF_TM_TX_LWM_IRQ,
 					    &fifo->pend_events)) {
 			return true;

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