* [PATCH v1] [v1] platform/mellanox: Fix mlxbf-tmfifo not handling all virtio CONSOLE notifictions
@ 2023-08-14 17:35 Shiih-Yi Chen
0 siblings, 0 replies; 3+ messages in thread
From: Shiih-Yi Chen @ 2023-08-14 17:35 UTC (permalink / raw)
To: linux-kernel; +Cc: shihyic, davethompson, limings
From: shihyic <shihyic@nvidia.com>
rshim console does not show all entries of dmesg.
Fixed by setting MLXBF_TM_TX_LWM_IRQ for every CONSOLE notification.
Signed-off-by: shihyic <shihyic@nvidia.com>
Review-by: limings@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 a79318e90a13..4561b7d42412 100644
--- a/drivers/platform/mellanox/mlxbf-tmfifo.c
+++ b/drivers/platform/mellanox/mlxbf-tmfifo.c
@@ -887,6 +887,8 @@ 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
^ permalink raw reply [flat|nested] 3+ messages in thread* [PATCH v1] [v1] platform/mellanox: Fix mlxbf-tmfifo not handling all virtio CONSOLE notifictions
@ 2023-08-14 17:53 Shiih-Yi Chen
2023-08-21 10:03 ` Hans de Goede
0 siblings, 1 reply; 3+ messages in thread
From: Shiih-Yi Chen @ 2023-08-14 17:53 UTC (permalink / raw)
To: linux-kernel, Hans de Goede, Mark Gross, Vadim Pasternak,
platform-driver-x86
Cc: shihyic, davthompson, limings
From: shihyic <shihyic@nvidia.com>
rshim console does not show all entries of dmesg.
Fixed by setting MLXBF_TM_TX_LWM_IRQ for every CONSOLE notification.
Signed-off-by: shihyic <shihyic@nvidia.com>
Review-by: limings@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 a79318e90a13..4561b7d42412 100644
--- a/drivers/platform/mellanox/mlxbf-tmfifo.c
+++ b/drivers/platform/mellanox/mlxbf-tmfifo.c
@@ -887,6 +887,8 @@ 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
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH v1] [v1] platform/mellanox: Fix mlxbf-tmfifo not handling all virtio CONSOLE notifictions
2023-08-14 17:53 Shiih-Yi Chen
@ 2023-08-21 10:03 ` Hans de Goede
0 siblings, 0 replies; 3+ messages in thread
From: Hans de Goede @ 2023-08-21 10:03 UTC (permalink / raw)
To: Shiih-Yi Chen, linux-kernel, Mark Gross, Vadim Pasternak,
platform-driver-x86
Cc: davthompson, limings
Hi,
On 8/14/23 19:53, Shiih-Yi Chen wrote:
> From: shihyic <shihyic@nvidia.com>
>
> rshim console does not show all entries of dmesg.
>
> Fixed by setting MLXBF_TM_TX_LWM_IRQ for every CONSOLE notification.
>
>
> Signed-off-by: shihyic <shihyic@nvidia.com>
> Review-by: limings@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 a79318e90a13..4561b7d42412 100644
> --- a/drivers/platform/mellanox/mlxbf-tmfifo.c
> +++ b/drivers/platform/mellanox/mlxbf-tmfifo.c
> @@ -887,6 +887,8 @@ 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);
You are not doing anything with the test result of test_and_set_bit() here,
so I think you can just use a (cheaper) set_bit() call here ?
Regards,
Hans
> } else if (test_and_set_bit(MLXBF_TM_TX_LWM_IRQ,
> &fifo->pend_events)) {
> return true;
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2023-08-21 10:04 UTC | newest]
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2023-08-14 17:35 [PATCH v1] [v1] platform/mellanox: Fix mlxbf-tmfifo not handling all virtio CONSOLE notifictions Shiih-Yi Chen
2023-08-14 17:53 Shiih-Yi Chen
2023-08-21 10:03 ` Hans de Goede
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