On Mon, 4 Mar 2024 18:01:40 -0800 Mina Almasry wrote:
> + if (!dev || !dev->netdev_ops)
> + return -EINVAL;
too defensive
> + if (!dev->netdev_ops->ndo_queue_stop ||
> + !dev->netdev_ops->ndo_queue_mem_free ||
> + !dev->netdev_ops->ndo_queue_mem_alloc ||
> +
On 2024/3/7 6:10, Mina Almasry wrote:
...
> +static int netdev_restart_rx_queue(struct net_device *dev, int rxq_idx)
> +{
> + void *new_mem;
> + void *old_mem;
> + int err;
> +
> + if (!dev || !dev->netdev_ops)
> + return -EINVAL;
>
On Wed, Mar 6, 2024 at 4:38 AM Yunsheng Lin wrote:
>
> On 2024/3/6 5:17, Mina Almasry wrote:
> > On Tue, Mar 5, 2024 at 4:55 AM Yunsheng Lin wrote:
> >>
> >> On 2024/3/5 10:01, Mina Almasry wrote:
> >>
> >> ...
> >>
> >>>
> >>> The netdev_dmabuf_binding struct is refcounted, and releases its
> >>
On 2024/3/6 5:17, Mina Almasry wrote:
> On Tue, Mar 5, 2024 at 4:55 AM Yunsheng Lin wrote:
>>
>> On 2024/3/5 10:01, Mina Almasry wrote:
>>
>> ...
>>
>>>
>>> The netdev_dmabuf_binding struct is refcounted, and releases its
>>> resources only when all the refs are released.
>>>
>>> Signed-off-by: Wi
On Tue, Mar 5, 2024, at 21:00, Mina Almasry wrote:
> On Tue, Mar 5, 2024 at 1:05 AM Arnd Bergmann wrote:
>> On Tue, Mar 5, 2024, at 03:01, Mina Almasry wrote:
>
> A key goal of this patch series is that the kernel does not try to
> parse the skb frags that reside in the dma-buf for that precise
>
On Tue, Mar 5, 2024 at 4:55 AM Yunsheng Lin wrote:
>
> On 2024/3/5 10:01, Mina Almasry wrote:
>
> ...
>
> >
> > The netdev_dmabuf_binding struct is refcounted, and releases its
> > resources only when all the refs are released.
> >
> > Signed-off-by: Willem de Bruijn
> > Signed-off-by: Kaiyuan Zh
On Tue, Mar 5, 2024 at 1:05 AM Arnd Bergmann wrote:
>
> On Tue, Mar 5, 2024, at 03:01, Mina Almasry wrote:
>
> > +int netdev_bind_dmabuf(struct net_device *dev, unsigned int dmabuf_fd,
> > +struct netdev_dmabuf_binding **out)
> > +{
> > + struct netdev_dmabuf_binding *bindi
On 2024/3/5 10:01, Mina Almasry wrote:
...
>
> The netdev_dmabuf_binding struct is refcounted, and releases its
> resources only when all the refs are released.
>
> Signed-off-by: Willem de Bruijn
> Signed-off-by: Kaiyuan Zhang
> Signed-off-by: Mina Almasry
>
> ---
>
> RFC v6:
> - Validate
On Tue, Mar 5, 2024, at 03:01, Mina Almasry wrote:
> +int netdev_bind_dmabuf(struct net_device *dev, unsigned int dmabuf_fd,
> +struct netdev_dmabuf_binding **out)
> +{
> + struct netdev_dmabuf_binding *binding;
> + static u32 id_alloc_next;
> + struct scatterlist *
Add a netdev_dmabuf_binding struct which represents the
dma-buf-to-netdevice binding. The netlink API will bind the dma-buf to
rx queues on the netdevice. On the binding, the dma_buf_attach
& dma_buf_map_attachment will occur. The entries in the sg_table from
mapping will be inserted into a genpool
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