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Subject[PATCH 4.8 59/67] IB/mlx5: Fix fatal error dispatching
Date
4.8-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Eli Cohen <eli@mellanox.com>

commit dbaaff2a2caa03d472b5cc53a3fbfd415c97dc26 upstream.

When an internal error condition is detected, make sure to set the
device inactive after dispatching the event so ULPs can get a
notification of this event.

Fixes: e126ba97dba9 ('mlx5: Add driver for Mellanox Connect-IB adapters')
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Reviewed-by: Mohamad Haj Yahia <mohamad@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/infiniband/hw/mlx5/main.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)

--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -2100,14 +2100,14 @@ static void mlx5_ib_event(struct mlx5_co
{
struct mlx5_ib_dev *ibdev = (struct mlx5_ib_dev *)context;
struct ib_event ibev;
-
+ bool fatal = false;
u8 port = 0;

switch (event) {
case MLX5_DEV_EVENT_SYS_ERROR:
- ibdev->ib_active = false;
ibev.event = IB_EVENT_DEVICE_FATAL;
mlx5_ib_handle_internal_error(ibdev);
+ fatal = true;
break;

case MLX5_DEV_EVENT_PORT_UP:
@@ -2154,6 +2154,9 @@ static void mlx5_ib_event(struct mlx5_co

if (ibdev->ib_active)
ib_dispatch_event(&ibev);
+
+ if (fatal)
+ ibdev->ib_active = false;
}

static void get_ext_port_caps(struct mlx5_ib_dev *dev)

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