Displaying 3 results from an estimated 3 matches for "virtnet_add_outbuf".
2023 Jun 22
1
[PATCH vhost v10 10/10] virtio_net: support dma premapped
...> + if (ret != num)
> + goto err;
> +
> + err = virtqueue_add_sg(vq, sg, num, out, data, ctx, gfp);
> + if (err < 0)
> + goto err;
> +
> + return 0;
> +
> +err:
> + dma_unmap_sg_attrs(dev, sg, num, dir, 0);
> + return -ENOMEM;
> +}
> +
> +static int virtnet_add_outbuf(struct send_queue *sq, unsigned int num, void *data)
> +{
> + return virtnet_add_sg(sq->vq, sq->premapped, sq->sg, num, true, data, NULL, GFP_ATOMIC);
> +}
> +
> +static int virtnet_add_inbuf(struct receive_queue *rq, unsigned int num, void *data,
> + void *ctx, gf...
2023 Jun 02
12
[PATCH vhost v10 00/10] virtio core prepares for AF_XDP
## About DMA APIs
Now, virtio may can not work with DMA APIs when virtio features do not have
VIRTIO_F_ACCESS_PLATFORM.
1. I tried to let DMA APIs return phy address by virtio-device. But DMA APIs just
work with the "real" devices.
2. I tried to let xsk support callballs to get phy address from virtio-net
driver as the dma address. But the maintainers of xsk may want to use
2023 Jun 02
12
[PATCH vhost v10 00/10] virtio core prepares for AF_XDP
## About DMA APIs
Now, virtio may can not work with DMA APIs when virtio features do not have
VIRTIO_F_ACCESS_PLATFORM.
1. I tried to let DMA APIs return phy address by virtio-device. But DMA APIs just
work with the "real" devices.
2. I tried to let xsk support callballs to get phy address from virtio-net
driver as the dma address. But the maintainers of xsk may want to use