[PATCH] [v2] platform/mellanox: Fix mlxbf-tmfifo not handling all virtio CONSOLE notifictions updated to use set_bit()

From: Shih-Yi Chen
Date: Mon Aug 21 2023 - 11:07:10 EST


From: shihyic <shihyic@xxxxxxxxxx>

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>, David Thompson <davthompson@xxxxxxxxxx>
Reviewed-by: David Thompson <davthompson@xxxxxxxxxx>
---
v1->v2:
- Per review comment, replaced test_and_set_bit() with set_bit()

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 a79318e90a13..b600b77d91ef 100644
--- a/drivers/platform/mellanox/mlxbf-tmfifo.c
+++ b/drivers/platform/mellanox/mlxbf-tmfifo.c
@@ -887,6 +887,7 @@ 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;
--
2.30.1