1
2
3
4#include <linux/mlx5/driver.h>
5#include <linux/mlx5/device.h>
6#include "mlx5_core.h"
7#include "dev.h"
8#include "devlink.h"
9
10static int mlx5_sf_dev_probe(struct auxiliary_device *adev, const struct auxiliary_device_id *id)
11{
12 struct mlx5_sf_dev *sf_dev = container_of(adev, struct mlx5_sf_dev, adev);
13 struct mlx5_core_dev *mdev;
14 struct devlink *devlink;
15 int err;
16
17 devlink = mlx5_devlink_alloc(&adev->dev);
18 if (!devlink)
19 return -ENOMEM;
20
21 mdev = devlink_priv(devlink);
22 mdev->device = &adev->dev;
23 mdev->pdev = sf_dev->parent_mdev->pdev;
24 mdev->bar_addr = sf_dev->bar_base_addr;
25 mdev->iseg_base = sf_dev->bar_base_addr;
26 mdev->coredev_type = MLX5_COREDEV_SF;
27 mdev->priv.parent_mdev = sf_dev->parent_mdev;
28 mdev->priv.adev_idx = adev->id;
29 sf_dev->mdev = mdev;
30
31 err = mlx5_mdev_init(mdev, MLX5_DEFAULT_PROF);
32 if (err) {
33 mlx5_core_warn(mdev, "mlx5_mdev_init on err=%d\n", err);
34 goto mdev_err;
35 }
36
37 mdev->iseg = ioremap(mdev->iseg_base, sizeof(*mdev->iseg));
38 if (!mdev->iseg) {
39 mlx5_core_warn(mdev, "remap error\n");
40 err = -ENOMEM;
41 goto remap_err;
42 }
43
44 err = mlx5_init_one(mdev);
45 if (err) {
46 mlx5_core_warn(mdev, "mlx5_init_one err=%d\n", err);
47 goto init_one_err;
48 }
49 devlink_reload_enable(devlink);
50 return 0;
51
52init_one_err:
53 iounmap(mdev->iseg);
54remap_err:
55 mlx5_mdev_uninit(mdev);
56mdev_err:
57 mlx5_devlink_free(devlink);
58 return err;
59}
60
61static void mlx5_sf_dev_remove(struct auxiliary_device *adev)
62{
63 struct mlx5_sf_dev *sf_dev = container_of(adev, struct mlx5_sf_dev, adev);
64 struct devlink *devlink;
65
66 devlink = priv_to_devlink(sf_dev->mdev);
67 devlink_reload_disable(devlink);
68 mlx5_uninit_one(sf_dev->mdev);
69 iounmap(sf_dev->mdev->iseg);
70 mlx5_mdev_uninit(sf_dev->mdev);
71 mlx5_devlink_free(devlink);
72}
73
74static void mlx5_sf_dev_shutdown(struct auxiliary_device *adev)
75{
76 struct mlx5_sf_dev *sf_dev = container_of(adev, struct mlx5_sf_dev, adev);
77
78 mlx5_unload_one(sf_dev->mdev);
79}
80
81static const struct auxiliary_device_id mlx5_sf_dev_id_table[] = {
82 { .name = MLX5_ADEV_NAME "." MLX5_SF_DEV_ID_NAME, },
83 { },
84};
85
86MODULE_DEVICE_TABLE(auxiliary, mlx5_sf_dev_id_table);
87
88static struct auxiliary_driver mlx5_sf_driver = {
89 .name = MLX5_SF_DEV_ID_NAME,
90 .probe = mlx5_sf_dev_probe,
91 .remove = mlx5_sf_dev_remove,
92 .shutdown = mlx5_sf_dev_shutdown,
93 .id_table = mlx5_sf_dev_id_table,
94};
95
96int mlx5_sf_driver_register(void)
97{
98 return auxiliary_driver_register(&mlx5_sf_driver);
99}
100
101void mlx5_sf_driver_unregister(void)
102{
103 auxiliary_driver_unregister(&mlx5_sf_driver);
104}
105
