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Date: Fri, 29 Mar 2019 15:37:54 -0700
From: Saeed Mahameed <saeedm@...lanox.com>
To: saeed@...lanox.com, Leon Romanovsky <leonro@...lanox.com>
Cc: netdev@...r.kernel.org, linux-rdma@...r.kernel.org,
Saeed Mahameed <saeedm@...lanox.com>,
Vu Pham <vuhuong@...lanox.com>
Subject: [PATCH mlx5-next 04/14] net/mlx5: Split mdev init and pci init
Separate resources initialization from pci initialization.
This provides a better logical separation of mlx5 core device
initialization flow and will help to seamlessly support creating different
mlx5 device types such as PF, VF and SF mlx5 sub-function virtual device.
This patch does not change any functionality.
Signed-off-by: Vu Pham <vuhuong@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
---
.../net/ethernet/mellanox/mlx5/core/main.c | 95 +++++++++++--------
1 file changed, 54 insertions(+), 41 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index de406138b188..5c96f1136c0a 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -736,32 +736,23 @@ static int mlx5_core_set_issi(struct mlx5_core_dev *dev)
return -EOPNOTSUPP;
}
-static int mlx5_pci_init(struct mlx5_core_dev *dev)
+static int mlx5_pci_init(struct mlx5_core_dev *dev, struct pci_dev *pdev,
+ const struct pci_device_id *id)
{
struct mlx5_priv *priv = &dev->priv;
- struct pci_dev *pdev = dev->pdev;
int err = 0;
- pci_set_drvdata(dev->pdev, dev);
- strncpy(priv->name, dev_name(&pdev->dev), MLX5_MAX_NAME_LEN);
- priv->name[MLX5_MAX_NAME_LEN - 1] = 0;
-
- mutex_init(&priv->pgdir_mutex);
- INIT_LIST_HEAD(&priv->pgdir_list);
- spin_lock_init(&priv->mkey_lock);
+ dev->pdev = pdev;
+ priv->pci_dev_data = id->driver_data;
- mutex_init(&priv->alloc_mutex);
+ pci_set_drvdata(dev->pdev, dev);
priv->numa_node = dev_to_node(&dev->pdev->dev);
- if (mlx5_debugfs_root)
- priv->dbg_root =
- debugfs_create_dir(pci_name(pdev), mlx5_debugfs_root);
-
err = mlx5_pci_enable_device(dev);
if (err) {
dev_err(&pdev->dev, "Cannot enable PCI device, aborting\n");
- goto err_dbg;
+ return err;
}
err = request_bar(pdev);
@@ -798,9 +789,6 @@ static int mlx5_pci_init(struct mlx5_core_dev *dev)
release_bar(dev->pdev);
err_disable:
mlx5_pci_disable_device(dev);
-
-err_dbg:
- debugfs_remove(priv->dbg_root);
return err;
}
@@ -810,7 +798,6 @@ static void mlx5_pci_close(struct mlx5_core_dev *dev)
pci_clear_master(dev->pdev);
release_bar(dev->pdev);
mlx5_pci_disable_device(dev);
- debugfs_remove_recursive(dev->priv.dbg_root);
}
static int mlx5_init_once(struct mlx5_core_dev *dev)
@@ -1237,13 +1224,49 @@ static const struct devlink_ops mlx5_devlink_ops = {
#endif
};
+static int mlx5_mdev_init(struct mlx5_core_dev *dev, int profile_idx, const char *name)
+{
+ struct mlx5_priv *priv = &dev->priv;
+
+ strncpy(priv->name, name, MLX5_MAX_NAME_LEN);
+ priv->name[MLX5_MAX_NAME_LEN - 1] = 0;
+
+ dev->profile = &profile[profile_idx];
+
+ INIT_LIST_HEAD(&priv->ctx_list);
+ spin_lock_init(&priv->ctx_lock);
+ mutex_init(&dev->pci_status_mutex);
+ mutex_init(&dev->intf_state_mutex);
+
+ mutex_init(&priv->bfregs.reg_head.lock);
+ mutex_init(&priv->bfregs.wc_head.lock);
+ INIT_LIST_HEAD(&priv->bfregs.reg_head.list);
+ INIT_LIST_HEAD(&priv->bfregs.wc_head.list);
+
+ mutex_init(&priv->alloc_mutex);
+ mutex_init(&priv->pgdir_mutex);
+ INIT_LIST_HEAD(&priv->pgdir_list);
+ spin_lock_init(&priv->mkey_lock);
+
+ priv->dbg_root = debugfs_create_dir(name, mlx5_debugfs_root);
+ if (!priv->dbg_root) {
+ pr_err("mlx5_core: %s error, Cannot create debugfs dir, aborting\n", name);
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+static void mlx5_mdev_uninit(struct mlx5_core_dev *dev)
+{
+ debugfs_remove_recursive(dev->priv.dbg_root);
+}
+
#define MLX5_IB_MOD "mlx5_ib"
-static int init_one(struct pci_dev *pdev,
- const struct pci_device_id *id)
+static int init_one(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct mlx5_core_dev *dev;
struct devlink *devlink;
- struct mlx5_priv *priv;
int err;
devlink = devlink_alloc(&mlx5_devlink_ops, sizeof(*dev));
@@ -1253,28 +1276,15 @@ static int init_one(struct pci_dev *pdev,
}
dev = devlink_priv(devlink);
- priv = &dev->priv;
- priv->pci_dev_data = id->driver_data;
-
- pci_set_drvdata(pdev, dev);
-
- dev->pdev = pdev;
- dev->profile = &profile[prof_sel];
- INIT_LIST_HEAD(&priv->ctx_list);
- spin_lock_init(&priv->ctx_lock);
- mutex_init(&dev->pci_status_mutex);
- mutex_init(&dev->intf_state_mutex);
-
- mutex_init(&priv->bfregs.reg_head.lock);
- mutex_init(&priv->bfregs.wc_head.lock);
- INIT_LIST_HEAD(&priv->bfregs.reg_head.list);
- INIT_LIST_HEAD(&priv->bfregs.wc_head.list);
+ err = mlx5_mdev_init(dev, prof_sel, dev_name(&pdev->dev));
+ if (err)
+ goto mdev_init_err;
- err = mlx5_pci_init(dev);
+ err = mlx5_pci_init(dev, pdev, id);
if (err) {
dev_err(&pdev->dev, "mlx5_pci_init failed with error code %d\n", err);
- goto clean_dev;
+ goto pci_init_err;
}
err = mlx5_health_init(dev);
@@ -1310,7 +1320,9 @@ static int init_one(struct pci_dev *pdev,
mlx5_health_cleanup(dev);
close_pci:
mlx5_pci_close(dev);
-clean_dev:
+pci_init_err:
+ mlx5_mdev_uninit(dev);
+mdev_init_err:
devlink_free(devlink);
return err;
@@ -1333,6 +1345,7 @@ static void remove_one(struct pci_dev *pdev)
mlx5_pagealloc_cleanup(dev);
mlx5_health_cleanup(dev);
mlx5_pci_close(dev);
+ mlx5_mdev_uninit(dev);
devlink_free(devlink);
}
--
2.20.1
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