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mlx4: trigger IB events needed by SMC
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>
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@ -2352,6 +2352,32 @@ static void mlx4_ib_scan_netdevs(struct mlx4_ib_dev *ibdev,
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event == NETDEV_UP || event == NETDEV_CHANGE))
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update_qps_port = port;
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if (dev == iboe->netdevs[port - 1] &&
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(event == NETDEV_UP || event == NETDEV_DOWN)) {
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enum ib_port_state port_state;
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struct ib_event ibev = { };
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if (ib_get_cached_port_state(&ibdev->ib_dev, port,
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&port_state))
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continue;
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if (event == NETDEV_UP &&
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(port_state != IB_PORT_ACTIVE ||
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iboe->last_port_state[port - 1] != IB_PORT_DOWN))
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continue;
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if (event == NETDEV_DOWN &&
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(port_state != IB_PORT_DOWN ||
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iboe->last_port_state[port - 1] != IB_PORT_ACTIVE))
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continue;
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iboe->last_port_state[port - 1] = port_state;
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ibev.device = &ibdev->ib_dev;
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ibev.element.port_num = port;
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ibev.event = event == NETDEV_UP ? IB_EVENT_PORT_ACTIVE :
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IB_EVENT_PORT_ERR;
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ib_dispatch_event(&ibev);
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}
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}
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spin_unlock_bh(&iboe->lock);
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@ -2710,6 +2736,7 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
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for (i = 0; i < ibdev->num_ports; ++i) {
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mutex_init(&ibdev->counters_table[i].mutex);
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INIT_LIST_HEAD(&ibdev->counters_table[i].counters_list);
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iboe->last_port_state[i] = IB_PORT_DOWN;
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}
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num_req_counters = mlx4_is_bonded(dev) ? 1 : ibdev->num_ports;
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@ -519,6 +519,7 @@ struct mlx4_ib_iboe {
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atomic64_t mac[MLX4_MAX_PORTS];
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struct notifier_block nb;
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struct mlx4_port_gid_table gids[MLX4_MAX_PORTS];
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enum ib_port_state last_port_state[MLX4_MAX_PORTS];
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};
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struct pkey_mgt {
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