If the mlx4_ib driver finds an adapter that has only ethernet ports, the current code will register an IB device with 0 ports. Nothing useful or sensible can be done with such a device, so just skip registering it.
Signed-off-by: Roland Dreier <[email protected]> --- I'll merge this too unless someone objects strongly. Otherwise if you have a system with a ConnectX NIC and a ConnectX IB HCA, you get strange results (two mlx4 IB devices, only one of which has any ports) drivers/infiniband/hw/mlx4/main.c | 13 +++++++++---- 1 files changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index dcefe1f..61588bd 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -543,14 +543,21 @@ static void *mlx4_ib_add(struct mlx4_dev *dev) { static int mlx4_ib_version_printed; struct mlx4_ib_dev *ibdev; + int num_ports = 0; int i; - if (!mlx4_ib_version_printed) { printk(KERN_INFO "%s", mlx4_ib_version); ++mlx4_ib_version_printed; } + mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) + num_ports++; + + /* No point in registering a device with no ports... */ + if (num_ports == 0) + return NULL; + ibdev = (struct mlx4_ib_dev *) ib_alloc_device(sizeof *ibdev); if (!ibdev) { dev_err(&dev->pdev->dev, "Device struct alloc failed\n"); @@ -574,9 +581,7 @@ static void *mlx4_ib_add(struct mlx4_dev *dev) ibdev->ib_dev.owner = THIS_MODULE; ibdev->ib_dev.node_type = RDMA_NODE_IB_CA; ibdev->ib_dev.local_dma_lkey = dev->caps.reserved_lkey; - ibdev->num_ports = 0; - mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) - ibdev->num_ports++; + ibdev->num_ports = num_ports; ibdev->ib_dev.phys_port_cnt = ibdev->num_ports; ibdev->ib_dev.num_comp_vectors = dev->caps.num_comp_vectors; ibdev->ib_dev.dma_device = &dev->pdev->dev; -- 1.6.0.4 _______________________________________________ general mailing list [email protected] http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
