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RDMA/mlx4: Support report_port_event() ops

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In addition to dispatching event, some private stuffs need to be
done in this driver's link status event handler. Implement the new
report_port_event() ops with the link status event codes.

Signed-off-by: Yuyu Li <liyuyu6@huawei.com>
Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Yuyu Li 2024-11-22 18:53:05 +08:00 committed by Leon Romanovsky
parent 2298c30c68
commit e4b4ef3457
1 changed files with 30 additions and 28 deletions
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58
drivers/infiniband/hw/mlx4/main.c
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@ -2341,39 +2341,40 @@ static void mlx4_ib_scan_netdev(struct mlx4_ib_dev *ibdev,
iboe->netdevs[dev->dev_port] = event != NETDEV_UNREGISTER ? dev : NULL;
if (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, dev->dev_port + 1,
&port_state))
goto iboe_out;
if (event == NETDEV_UP &&
(port_state != IB_PORT_ACTIVE ||
iboe->last_port_state[dev->dev_port] != IB_PORT_DOWN))
goto iboe_out;
if (event == NETDEV_DOWN &&
(port_state != IB_PORT_DOWN ||
iboe->last_port_state[dev->dev_port] != IB_PORT_ACTIVE))
goto iboe_out;
iboe->last_port_state[dev->dev_port] = port_state;
ibev.device = &ibdev->ib_dev;
ibev.element.port_num = dev->dev_port + 1;
ibev.event = event == NETDEV_UP ? IB_EVENT_PORT_ACTIVE :
IB_EVENT_PORT_ERR;
ib_dispatch_event(&ibev);
}
iboe_out:
spin_unlock_bh(&iboe->lock);
if (event == NETDEV_CHANGEADDR || event == NETDEV_REGISTER ||
event == NETDEV_UP || event == NETDEV_CHANGE)
if (event == NETDEV_CHANGEADDR || event == NETDEV_REGISTER)
mlx4_ib_update_qps(ibdev, dev, dev->dev_port + 1);
}
static void mlx4_ib_port_event(struct ib_device *ibdev, struct net_device *ndev,
unsigned long event)
{
struct mlx4_ib_dev *mlx4_ibdev =
container_of(ibdev, struct mlx4_ib_dev, ib_dev);
struct mlx4_ib_iboe *iboe = &mlx4_ibdev->iboe;
if (!net_eq(dev_net(ndev), &init_net))
return;
ASSERT_RTNL();
if (ndev->dev.parent != mlx4_ibdev->ib_dev.dev.parent)
return;
spin_lock_bh(&iboe->lock);
iboe->netdevs[ndev->dev_port] = event != NETDEV_UNREGISTER ? ndev : NULL;
if (event == NETDEV_UP || event == NETDEV_DOWN)
ib_dispatch_port_state_event(&mlx4_ibdev->ib_dev, ndev);
spin_unlock_bh(&iboe->lock);
if (event == NETDEV_UP || event == NETDEV_CHANGE)
mlx4_ib_update_qps(mlx4_ibdev, ndev, ndev->dev_port + 1);
}
static int mlx4_ib_netdev_event(struct notifier_block *this,
unsigned long event, void *ptr)
{
@ -2569,6 +2570,7 @@ static const struct ib_device_ops mlx4_ib_dev_ops = {
.req_notify_cq = mlx4_ib_arm_cq,
.rereg_user_mr = mlx4_ib_rereg_user_mr,
.resize_cq = mlx4_ib_resize_cq,
.report_port_event = mlx4_ib_port_event,
INIT_RDMA_OBJ_SIZE(ib_ah, mlx4_ib_ah, ibah),
INIT_RDMA_OBJ_SIZE(ib_cq, mlx4_ib_cq, ibcq),