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mlx4: trigger IB events needed by SMC

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The mlx4 driver does not trigger an IB_EVENT_PORT_ACTIVE when the RoCE
network interface is activated. When SMC determines the RoCE device port
to be used, it checks the port states. This patch triggers IB events for
NETDEV_UP and NETDEV_DOWN.

Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Acked-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Ursula Braun 2018-11-12 12:41:55 +01:00 committed by Jason Gunthorpe
parent 9828ca654b
commit fc6526fba1
2 changed files with 28 additions and 0 deletions
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27
drivers/infiniband/hw/mlx4/main.c
View File

@ -2352,6 +2352,32 @@ static void mlx4_ib_scan_netdevs(struct mlx4_ib_dev *ibdev,
event == NETDEV_UP || event == NETDEV_CHANGE))
update_qps_port = port;
if (dev == iboe->netdevs[port - 1] &&
(event == NETDEV_UP || event == NETDEV_DOWN)) {
enum ib_port_state port_state;
struct ib_event ibev = { };
if (ib_get_cached_port_state(&ibdev->ib_dev, port,
&port_state))
continue;
if (event == NETDEV_UP &&
(port_state != IB_PORT_ACTIVE ||
iboe->last_port_state[port - 1] != IB_PORT_DOWN))
continue;
if (event == NETDEV_DOWN &&
(port_state != IB_PORT_DOWN ||
iboe->last_port_state[port - 1] != IB_PORT_ACTIVE))
continue;
iboe->last_port_state[port - 1] = port_state;
ibev.device = &ibdev->ib_dev;
ibev.element.port_num = port;
ibev.event = event == NETDEV_UP ? IB_EVENT_PORT_ACTIVE :
IB_EVENT_PORT_ERR;
ib_dispatch_event(&ibev);
}
}
spin_unlock_bh(&iboe->lock);
@ -2710,6 +2736,7 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
for (i = 0; i < ibdev->num_ports; ++i) {
mutex_init(&ibdev->counters_table[i].mutex);
INIT_LIST_HEAD(&ibdev->counters_table[i].counters_list);
iboe->last_port_state[i] = IB_PORT_DOWN;
}
num_req_counters = mlx4_is_bonded(dev) ? 1 : ibdev->num_ports;

1
drivers/infiniband/hw/mlx4/mlx4_ib.h
View File

@ -519,6 +519,7 @@ struct mlx4_ib_iboe {
atomic64_t mac[MLX4_MAX_PORTS];
struct notifier_block nb;
struct mlx4_port_gid_table gids[MLX4_MAX_PORTS];
enum ib_port_state last_port_state[MLX4_MAX_PORTS];
};
struct pkey_mgt {