[SRU][F:linux-bluefield][PATCH v1 1/1] UBUNTU: SAUCE: mlxbf-tmfifo.c: Fix rhsim console w/ truncated dmesg output

shihyic shihyic at nvidia.com
Thu Jul 20 18:32:52 UTC 2023


BugLink: https://bugs.launchpad.net/ubuntu/+source/linux-bluefield/+bug/2028197

Fix rshim console output got cutoff due to tmfifo driver not processing all
virtio console notifications. 

Signed-off-by: Shih-Yi Chen <shihyic at nvidia.com>
Reviewed-by: Liming Sun <limings at nvidia.com>

---
 drivers/platform/mellanox/mlxbf-tmfifo.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/platform/mellanox/mlxbf-tmfifo.c b/drivers/platform/mellanox/mlxbf-tmfifo.c
index 497b16b8fe84..408851c4464b 100644
--- a/drivers/platform/mellanox/mlxbf-tmfifo.c
+++ b/drivers/platform/mellanox/mlxbf-tmfifo.c
@@ -1049,6 +1049,8 @@ 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);
+			test_and_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




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