diff options
Diffstat (limited to 'drivers/vdpa')
| -rw-r--r-- | drivers/vdpa/mlx5/net/mlx5_vnet.c | 42 | ||||
| -rw-r--r-- | drivers/vdpa/vdpa_user/vduse_dev.c | 67 |
2 files changed, 67 insertions, 42 deletions
diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c index b7a955479156..e85c1d71f4ed 100644 --- a/drivers/vdpa/mlx5/net/mlx5_vnet.c +++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c @@ -107,7 +107,7 @@ struct mlx5_vdpa_virtqueue { /* Resources for implementing the notification channel from the device * to the driver. fwqp is the firmware end of an RC connection; the - * other end is vqqp used by the driver. cq is is where completions are + * other end is vqqp used by the driver. cq is where completions are * reported. */ struct mlx5_vdpa_cq cq; @@ -1814,12 +1814,13 @@ static virtio_net_ctrl_ack handle_ctrl_vlan(struct mlx5_vdpa_dev *mvdev, u8 cmd) id = mlx5vdpa16_to_cpu(mvdev, vlan); mac_vlan_del(ndev, ndev->config.mac, id, true); + status = VIRTIO_NET_OK; break; default: - break; -} + break; + } -return status; + return status; } static void mlx5_cvq_kick_handler(struct work_struct *work) @@ -1961,6 +1962,8 @@ static void mlx5_vdpa_set_vq_cb(struct vdpa_device *vdev, u16 idx, struct vdpa_c struct mlx5_vdpa_net *ndev = to_mlx5_vdpa_ndev(mvdev); ndev->event_cbs[idx] = *cb; + if (is_ctrl_vq_idx(mvdev, idx)) + mvdev->cvq.event_cb = *cb; } static void mlx5_cvq_notify(struct vringh *vring) @@ -2173,7 +2176,6 @@ static int verify_driver_features(struct mlx5_vdpa_dev *mvdev, u64 features) static int setup_virtqueues(struct mlx5_vdpa_dev *mvdev) { struct mlx5_vdpa_net *ndev = to_mlx5_vdpa_ndev(mvdev); - struct mlx5_control_vq *cvq = &mvdev->cvq; int err; int i; @@ -2183,16 +2185,6 @@ static int setup_virtqueues(struct mlx5_vdpa_dev *mvdev) goto err_vq; } - if (mvdev->actual_features & BIT_ULL(VIRTIO_NET_F_CTRL_VQ)) { - err = vringh_init_iotlb(&cvq->vring, mvdev->actual_features, - MLX5_CVQ_MAX_ENT, false, - (struct vring_desc *)(uintptr_t)cvq->desc_addr, - (struct vring_avail *)(uintptr_t)cvq->driver_addr, - (struct vring_used *)(uintptr_t)cvq->device_addr); - if (err) - goto err_vq; - } - return 0; err_vq: @@ -2465,6 +2457,21 @@ static void clear_vqs_ready(struct mlx5_vdpa_net *ndev) ndev->mvdev.cvq.ready = false; } +static int setup_cvq_vring(struct mlx5_vdpa_dev *mvdev) +{ + struct mlx5_control_vq *cvq = &mvdev->cvq; + int err = 0; + + if (mvdev->actual_features & BIT_ULL(VIRTIO_NET_F_CTRL_VQ)) + err = vringh_init_iotlb(&cvq->vring, mvdev->actual_features, + MLX5_CVQ_MAX_ENT, false, + (struct vring_desc *)(uintptr_t)cvq->desc_addr, + (struct vring_avail *)(uintptr_t)cvq->driver_addr, + (struct vring_used *)(uintptr_t)cvq->device_addr); + + return err; +} + static void mlx5_vdpa_set_status(struct vdpa_device *vdev, u8 status) { struct mlx5_vdpa_dev *mvdev = to_mvdev(vdev); @@ -2477,6 +2484,11 @@ static void mlx5_vdpa_set_status(struct vdpa_device *vdev, u8 status) if ((status ^ ndev->mvdev.status) & VIRTIO_CONFIG_S_DRIVER_OK) { if (status & VIRTIO_CONFIG_S_DRIVER_OK) { + err = setup_cvq_vring(mvdev); + if (err) { + mlx5_vdpa_warn(mvdev, "failed to setup control VQ vring\n"); + goto err_setup; + } err = setup_driver(mvdev); if (err) { mlx5_vdpa_warn(mvdev, "failed to setup driver\n"); diff --git a/drivers/vdpa/vdpa_user/vduse_dev.c b/drivers/vdpa/vdpa_user/vduse_dev.c index d503848b3b6e..3bc27de58f46 100644 --- a/drivers/vdpa/vdpa_user/vduse_dev.c +++ b/drivers/vdpa/vdpa_user/vduse_dev.c @@ -1345,9 +1345,9 @@ static int vduse_create_dev(struct vduse_dev_config *config, dev->minor = ret; dev->msg_timeout = VDUSE_MSG_DEFAULT_TIMEOUT; - dev->dev = device_create(vduse_class, NULL, - MKDEV(MAJOR(vduse_major), dev->minor), - dev, "%s", config->name); + dev->dev = device_create_with_groups(vduse_class, NULL, + MKDEV(MAJOR(vduse_major), dev->minor), + dev, vduse_dev_groups, "%s", config->name); if (IS_ERR(dev->dev)) { ret = PTR_ERR(dev->dev); goto err_dev; @@ -1476,16 +1476,12 @@ static char *vduse_devnode(struct device *dev, umode_t *mode) return kasprintf(GFP_KERNEL, "vduse/%s", dev_name(dev)); } -static void vduse_mgmtdev_release(struct device *dev) -{ -} - -static struct device vduse_mgmtdev = { - .init_name = "vduse", - .release = vduse_mgmtdev_release, +struct vduse_mgmt_dev { + struct vdpa_mgmt_dev mgmt_dev; + struct device dev; }; -static struct vdpa_mgmt_dev mgmt_dev; +static struct vduse_mgmt_dev *vduse_mgmt; static int vduse_dev_init_vdpa(struct vduse_dev *dev, const char *name) { @@ -1510,7 +1506,7 @@ static int vduse_dev_init_vdpa(struct vduse_dev *dev, const char *name) } set_dma_ops(&vdev->vdpa.dev, &vduse_dev_dma_ops); vdev->vdpa.dma_dev = &vdev->vdpa.dev; - vdev->vdpa.mdev = &mgmt_dev; + vdev->vdpa.mdev = &vduse_mgmt->mgmt_dev; return 0; } @@ -1556,34 +1552,52 @@ static struct virtio_device_id id_table[] = { { 0 }, }; -static struct vdpa_mgmt_dev mgmt_dev = { - .device = &vduse_mgmtdev, - .id_table = id_table, - .ops = &vdpa_dev_mgmtdev_ops, -}; +static void vduse_mgmtdev_release(struct device *dev) +{ + struct vduse_mgmt_dev *mgmt_dev; + + mgmt_dev = container_of(dev, struct vduse_mgmt_dev, dev); + kfree(mgmt_dev); +} static int vduse_mgmtdev_init(void) { int ret; - ret = device_register(&vduse_mgmtdev); - if (ret) + vduse_mgmt = kzalloc(sizeof(*vduse_mgmt), GFP_KERNEL); + if (!vduse_mgmt) + return -ENOMEM; + + ret = dev_set_name(&vduse_mgmt->dev, "vduse"); + if (ret) { + kfree(vduse_mgmt); return ret; + } - ret = vdpa_mgmtdev_register(&mgmt_dev); + vduse_mgmt->dev.release = vduse_mgmtdev_release; + + ret = device_register(&vduse_mgmt->dev); if (ret) - goto err; + goto dev_reg_err; - return 0; -err: - device_unregister(&vduse_mgmtdev); + vduse_mgmt->mgmt_dev.id_table = id_table; + vduse_mgmt->mgmt_dev.ops = &vdpa_dev_mgmtdev_ops; + vduse_mgmt->mgmt_dev.device = &vduse_mgmt->dev; + ret = vdpa_mgmtdev_register(&vduse_mgmt->mgmt_dev); + if (ret) + device_unregister(&vduse_mgmt->dev); + + return ret; + +dev_reg_err: + put_device(&vduse_mgmt->dev); return ret; } static void vduse_mgmtdev_exit(void) { - vdpa_mgmtdev_unregister(&mgmt_dev); - device_unregister(&vduse_mgmtdev); + vdpa_mgmtdev_unregister(&vduse_mgmt->mgmt_dev); + device_unregister(&vduse_mgmt->dev); } static int vduse_init(void) @@ -1596,7 +1610,6 @@ static int vduse_init(void) return PTR_ERR(vduse_class); vduse_class->devnode = vduse_devnode; - vduse_class->dev_groups = vduse_dev_groups; ret = alloc_chrdev_region(&vduse_major, 0, VDUSE_DEV_MAX, "vduse"); if (ret) |