From: Petr Pavlu Date: Mon, 21 Aug 2023 13:12:24 +0000 (+0200) Subject: mlx4: Connect the infiniband part to the auxiliary bus X-Git-Tag: v6.6.7~2079^2~44^2~1 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7d22b1cb9d84d209bdd6f43ef683d7322682d6b4;p=platform%2Fkernel%2Flinux-starfive.git mlx4: Connect the infiniband part to the auxiliary bus Use the auxiliary bus to perform device management of the infiniband part of the mlx4 driver. Signed-off-by: Petr Pavlu Tested-by: Leon Romanovsky Reviewed-by: Leon Romanovsky Acked-by: Tariq Toukan Signed-off-by: David S. Miller --- diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index 6debee4..1f8d0d2 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -2609,8 +2609,11 @@ static const struct ib_device_ops mlx4_ib_dev_fs_ops = { .destroy_flow = mlx4_ib_destroy_flow, }; -static void *mlx4_ib_add(struct mlx4_dev *dev) +static int mlx4_ib_probe(struct auxiliary_device *adev, + const struct auxiliary_device_id *id) { + struct mlx4_adev *madev = container_of(adev, struct mlx4_adev, adev); + struct mlx4_dev *dev = madev->mdev; struct mlx4_ib_dev *ibdev; int num_ports = 0; int i, j; @@ -2630,27 +2633,31 @@ static void *mlx4_ib_add(struct mlx4_dev *dev) /* No point in registering a device with no ports... */ if (num_ports == 0) - return NULL; + return -ENODEV; ibdev = ib_alloc_device(mlx4_ib_dev, ib_dev); if (!ibdev) { dev_err(&dev->persist->pdev->dev, "Device struct alloc failed\n"); - return NULL; + return -ENOMEM; } iboe = &ibdev->iboe; - if (mlx4_pd_alloc(dev, &ibdev->priv_pdn)) + err = mlx4_pd_alloc(dev, &ibdev->priv_pdn); + if (err) goto err_dealloc; - if (mlx4_uar_alloc(dev, &ibdev->priv_uar)) + err = mlx4_uar_alloc(dev, &ibdev->priv_uar); + if (err) goto err_pd; ibdev->uar_map = ioremap((phys_addr_t) ibdev->priv_uar.pfn << PAGE_SHIFT, PAGE_SIZE); - if (!ibdev->uar_map) + if (!ibdev->uar_map) { + err = -ENOMEM; goto err_uar; + } MLX4_INIT_DOORBELL_LOCK(&ibdev->uar_lock); ibdev->dev = dev; @@ -2694,7 +2701,8 @@ static void *mlx4_ib_add(struct mlx4_dev *dev) spin_lock_init(&iboe->lock); - if (init_node_data(ibdev)) + err = init_node_data(ibdev); + if (err) goto err_map; mlx4_init_sl2vl_tbl(ibdev); @@ -2726,6 +2734,7 @@ static void *mlx4_ib_add(struct mlx4_dev *dev) new_counter_index = kmalloc(sizeof(*new_counter_index), GFP_KERNEL); if (!new_counter_index) { + err = -ENOMEM; if (allocated) mlx4_counter_free(ibdev->dev, counter_index); goto err_counter; @@ -2743,8 +2752,10 @@ static void *mlx4_ib_add(struct mlx4_dev *dev) new_counter_index = kmalloc(sizeof(struct counter_index), GFP_KERNEL); - if (!new_counter_index) + if (!new_counter_index) { + err = -ENOMEM; goto err_counter; + } new_counter_index->index = counter_index; new_counter_index->allocated = 0; list_add_tail(&new_counter_index->list, @@ -2773,8 +2784,10 @@ static void *mlx4_ib_add(struct mlx4_dev *dev) ibdev->ib_uc_qpns_bitmap = bitmap_alloc(ibdev->steer_qpn_count, GFP_KERNEL); - if (!ibdev->ib_uc_qpns_bitmap) + if (!ibdev->ib_uc_qpns_bitmap) { + err = -ENOMEM; goto err_steer_qp_release; + } if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DMFS_IPOIB) { bitmap_zero(ibdev->ib_uc_qpns_bitmap, @@ -2794,17 +2807,21 @@ static void *mlx4_ib_add(struct mlx4_dev *dev) for (j = 1; j <= ibdev->dev->caps.num_ports; j++) atomic64_set(&iboe->mac[j - 1], ibdev->dev->caps.def_mac[j]); - if (mlx4_ib_alloc_diag_counters(ibdev)) + err = mlx4_ib_alloc_diag_counters(ibdev); + if (err) goto err_steer_free_bitmap; - if (ib_register_device(&ibdev->ib_dev, "mlx4_%d", - &dev->persist->pdev->dev)) + err = ib_register_device(&ibdev->ib_dev, "mlx4_%d", + &dev->persist->pdev->dev); + if (err) goto err_diag_counters; - if (mlx4_ib_mad_init(ibdev)) + err = mlx4_ib_mad_init(ibdev); + if (err) goto err_reg; - if (mlx4_ib_init_sriov(ibdev)) + err = mlx4_ib_init_sriov(ibdev); + if (err) goto err_mad; if (!iboe->nb.notifier_call) { @@ -2844,7 +2861,8 @@ static void *mlx4_ib_add(struct mlx4_dev *dev) err = mlx4_register_event_notifier(dev, &ibdev->mlx_nb); WARN(err, "failed to register mlx4 event notifier (%d)", err); - return ibdev; + auxiliary_set_drvdata(adev, ibdev); + return 0; err_notif: if (ibdev->iboe.nb.notifier_call) { @@ -2888,7 +2906,7 @@ err_pd: err_dealloc: ib_dealloc_device(&ibdev->ib_dev); - return NULL; + return err; } int mlx4_ib_steer_qp_alloc(struct mlx4_ib_dev *dev, int count, int *qpn) @@ -2955,9 +2973,11 @@ int mlx4_ib_steer_qp_reg(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp, return err; } -static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr) +static void mlx4_ib_remove(struct auxiliary_device *adev) { - struct mlx4_ib_dev *ibdev = ibdev_ptr; + struct mlx4_adev *madev = container_of(adev, struct mlx4_adev, adev); + struct mlx4_dev *dev = madev->mdev; + struct mlx4_ib_dev *ibdev = auxiliary_get_drvdata(adev); int p; int i; @@ -3303,9 +3323,20 @@ static int mlx4_ib_event(struct notifier_block *this, unsigned long event, return NOTIFY_DONE; } -static struct mlx4_interface mlx4_ib_interface = { - .add = mlx4_ib_add, - .remove = mlx4_ib_remove, +static const struct auxiliary_device_id mlx4_ib_id_table[] = { + { .name = MLX4_ADEV_NAME ".ib" }, + {}, +}; + +MODULE_DEVICE_TABLE(auxiliary, mlx4_ib_id_table); + +static struct mlx4_adrv mlx4_ib_adrv = { + .adrv = { + .name = "ib", + .probe = mlx4_ib_probe, + .remove = mlx4_ib_remove, + .id_table = mlx4_ib_id_table, + }, .protocol = MLX4_PROT_IB_IPV6, .flags = MLX4_INTFF_BONDING }; @@ -3330,7 +3361,7 @@ static int __init mlx4_ib_init(void) if (err) goto clean_cm; - err = mlx4_register_interface(&mlx4_ib_interface); + err = mlx4_register_auxiliary_driver(&mlx4_ib_adrv); if (err) goto clean_mcg; @@ -3352,7 +3383,7 @@ clean_qp_event: static void __exit mlx4_ib_cleanup(void) { - mlx4_unregister_interface(&mlx4_ib_interface); + mlx4_unregister_auxiliary_driver(&mlx4_ib_adrv); mlx4_ib_mcg_destroy(); mlx4_ib_cm_destroy(); mlx4_ib_qp_event_cleanup(); diff --git a/drivers/net/ethernet/mellanox/mlx4/intf.c b/drivers/net/ethernet/mellanox/mlx4/intf.c index 95ff0ea..7579031 100644 --- a/drivers/net/ethernet/mellanox/mlx4/intf.c +++ b/drivers/net/ethernet/mellanox/mlx4/intf.c @@ -59,11 +59,24 @@ static bool is_eth_supported(struct mlx4_dev *dev) return false; } +static bool is_ib_supported(struct mlx4_dev *dev) +{ + for (int port = 1; port <= dev->caps.num_ports; port++) + if (dev->caps.port_type[port] == MLX4_PORT_TYPE_IB) + return true; + + if (dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE) + return true; + + return false; +} + static const struct mlx4_adev_device { const char *suffix; bool (*is_supported)(struct mlx4_dev *dev); } mlx4_adev_devices[] = { { "eth", is_eth_supported }, + { "ib", is_ib_supported }, }; int mlx4_adev_init(struct mlx4_dev *dev)