props->device_cap_flags |= IB_DEVICE_UD_TSO;
}
+ if (MLX5_CAP_GEN(dev->mdev, rq_delay_drop) &&
+ MLX5_CAP_GEN(dev->mdev, general_notification_event))
+ props->raw_packet_caps |= IB_RAW_PACKET_CAP_DELAY_DROP;
+
if (MLX5_CAP_GEN(dev->mdev, eth_net_offloads) &&
MLX5_CAP_ETH(dev->mdev, scatter_fcs)) {
/* Legacy bit to support old userspace libraries */
spin_unlock_irqrestore(&ibdev->reset_flow_resource_lock, flags);
}
+static void delay_drop_handler(struct work_struct *work)
+{
+ int err;
+ struct mlx5_ib_delay_drop *delay_drop =
+ container_of(work, struct mlx5_ib_delay_drop,
+ delay_drop_work);
+
+ mutex_lock(&delay_drop->lock);
+ err = mlx5_core_set_delay_drop(delay_drop->dev->mdev,
+ delay_drop->timeout);
+ if (err) {
+ mlx5_ib_warn(delay_drop->dev, "Failed to set delay drop, timeout=%u\n",
+ delay_drop->timeout);
+ delay_drop->activate = false;
+ }
+ mutex_unlock(&delay_drop->lock);
+}
+
static void mlx5_ib_event(struct mlx5_core_dev *dev, void *context,
enum mlx5_dev_event event, unsigned long param)
{
ibev.event = IB_EVENT_CLIENT_REREGISTER;
port = (u8)param;
break;
+ case MLX5_DEV_EVENT_DELAY_DROP_TIMEOUT:
+ schedule_work(&ibdev->delay_drop.delay_drop_work);
+ goto out;
default:
- return;
+ goto out;
}
ibev.device = &ibdev->ib_dev;
if (port < 1 || port > ibdev->num_ports) {
mlx5_ib_warn(ibdev, "warning: event on port %d\n", port);
- return;
+ goto out;
}
if (ibdev->ib_active)
if (fatal)
ibdev->ib_active = false;
+
+out:
+ return;
}
static int set_has_smi_cap(struct mlx5_ib_dev *dev)
return netdev;
}
+static void cancel_delay_drop(struct mlx5_ib_dev *dev)
+{
+ if (!(dev->ib_dev.attrs.raw_packet_caps & IB_RAW_PACKET_CAP_DELAY_DROP))
+ return;
+
+ cancel_work_sync(&dev->delay_drop.delay_drop_work);
+}
+
+static void init_delay_drop(struct mlx5_ib_dev *dev)
+{
+ if (!(dev->ib_dev.attrs.raw_packet_caps & IB_RAW_PACKET_CAP_DELAY_DROP))
+ return;
+
+ mutex_init(&dev->delay_drop.lock);
+ dev->delay_drop.dev = dev;
+ dev->delay_drop.activate = false;
+ dev->delay_drop.timeout = MLX5_MAX_DELAY_DROP_TIMEOUT_MS * 1000;
+ INIT_WORK(&dev->delay_drop.delay_drop_work, delay_drop_handler);
+}
+
static void *mlx5_ib_add(struct mlx5_core_dev *mdev)
{
struct mlx5_ib_dev *dev;
if (err)
goto err_dev;
+ init_delay_drop(dev);
+
for (i = 0; i < ARRAY_SIZE(mlx5_class_attributes); i++) {
err = device_create_file(&dev->ib_dev.dev,
mlx5_class_attributes[i]);
if (err)
- goto err_umrc;
+ goto err_delay_drop;
}
if ((MLX5_CAP_GEN(mdev, port_type) == MLX5_CAP_PORT_TYPE_ETH) &&
return dev;
-err_umrc:
+err_delay_drop:
+ cancel_delay_drop(dev);
destroy_umrc_res(dev);
err_dev:
struct mlx5_ib_dev *dev = context;
enum rdma_link_layer ll = mlx5_ib_port_link_layer(&dev->ib_dev, 1);
+ cancel_delay_drop(dev);
mlx5_remove_netdev_notifier(dev);
ib_unregister_device(&dev->ib_dev);
mlx5_free_bfreg(dev->mdev, &dev->fp_bfreg);