vdpa.c (a6a51adc6e8aafebfe0c4beb80e99694ea562b40) vdpa.c (d4821902e43453b85b31329441a9f6ac071228a8)
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * vDPA bus.
4 *
5 * Copyright (c) 2020, Red Hat. All rights reserved.
6 * Author: Jason Wang <jasowang@redhat.com>
7 *
8 */

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153}
154
155/**
156 * __vdpa_alloc_device - allocate and initilaize a vDPA device
157 * This allows driver to some prepartion after device is
158 * initialized but before registered.
159 * @parent: the parent device
160 * @config: the bus operations that is supported by this device
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * vDPA bus.
4 *
5 * Copyright (c) 2020, Red Hat. All rights reserved.
6 * Author: Jason Wang <jasowang@redhat.com>
7 *
8 */

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153}
154
155/**
156 * __vdpa_alloc_device - allocate and initilaize a vDPA device
157 * This allows driver to some prepartion after device is
158 * initialized but before registered.
159 * @parent: the parent device
160 * @config: the bus operations that is supported by this device
161 * @ngroups: number of groups supported by this device
161 * @size: size of the parent structure that contains private data
162 * @name: name of the vdpa device; optional.
163 * @use_va: indicate whether virtual address must be used by this device
164 *
165 * Driver should use vdpa_alloc_device() wrapper macro instead of
166 * using this directly.
167 *
168 * Return: Returns an error when parent/config/dma_dev is not set or fail to get
169 * ida.
170 */
171struct vdpa_device *__vdpa_alloc_device(struct device *parent,
172 const struct vdpa_config_ops *config,
162 * @size: size of the parent structure that contains private data
163 * @name: name of the vdpa device; optional.
164 * @use_va: indicate whether virtual address must be used by this device
165 *
166 * Driver should use vdpa_alloc_device() wrapper macro instead of
167 * using this directly.
168 *
169 * Return: Returns an error when parent/config/dma_dev is not set or fail to get
170 * ida.
171 */
172struct vdpa_device *__vdpa_alloc_device(struct device *parent,
173 const struct vdpa_config_ops *config,
174 unsigned int ngroups,
173 size_t size, const char *name,
174 bool use_va)
175{
176 struct vdpa_device *vdev;
177 int err = -EINVAL;
178
179 if (!config)
180 goto err;

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197
198 vdev->dev.bus = &vdpa_bus;
199 vdev->dev.parent = parent;
200 vdev->dev.release = vdpa_release_dev;
201 vdev->index = err;
202 vdev->config = config;
203 vdev->features_valid = false;
204 vdev->use_va = use_va;
175 size_t size, const char *name,
176 bool use_va)
177{
178 struct vdpa_device *vdev;
179 int err = -EINVAL;
180
181 if (!config)
182 goto err;

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199
200 vdev->dev.bus = &vdpa_bus;
201 vdev->dev.parent = parent;
202 vdev->dev.release = vdpa_release_dev;
203 vdev->index = err;
204 vdev->config = config;
205 vdev->features_valid = false;
206 vdev->use_va = use_va;
207 vdev->ngroups = ngroups;
205
206 if (name)
207 err = dev_set_name(&vdev->dev, "%s", name);
208 else
209 err = dev_set_name(&vdev->dev, "vdpa%u", vdev->index);
210 if (err)
211 goto err_name;
212

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209 if (name)
210 err = dev_set_name(&vdev->dev, "%s", name);
211 else
212 err = dev_set_name(&vdev->dev, "vdpa%u", vdev->index);
213 if (err)
214 goto err_name;
215

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