On Tue, May 28, 2024 at 7:42 PM Pavel Begunkov wrote:
>
> On 5/28/24 18:36, Mina Almasry wrote:
> > On Wed, May 22, 2024 at 11:02 PM David Wei wrote:
> ...
> >>> + */
> >>> + if (!skb_frag_net_iov(frag)) {
> >>> + net_err_rateli
On 5/28/24 18:36, Mina Almasry wrote:
On Wed, May 22, 2024 at 11:02 PM David Wei wrote:
...
+ */
+ if (!skb_frag_net_iov(frag)) {
+ net_err_ratelimited("Found non-dmabuf skb with
net_iov");
+ err
On Wed, May 22, 2024 at 11:02 PM David Wei wrote:
>
> On 2024-05-10 16:21, Mina Almasry wrote:
> > +/* On error, returns the -errno. On success, returns number of bytes sent
> > to the
> > + * user. May not consume all of @remaining_len.
> > + */
> > +static int tcp_recvmsg_dmabuf(struct sock *sk
On 2024-05-10 16:21, Mina Almasry wrote:
> +/* On error, returns the -errno. On success, returns number of bytes sent to
> the
> + * user. May not consume all of @remaining_len.
> + */
> +static int tcp_recvmsg_dmabuf(struct sock *sk, const struct sk_buff *skb,
> + unsign
In tcp_recvmsg_locked(), detect if the skb being received by the user
is a devmem skb. In this case - if the user provided the MSG_SOCK_DEVMEM
flag - pass it to tcp_recvmsg_devmem() for custom handling.
tcp_recvmsg_devmem() copies any data in the skb header to the linear
buffer, and returns a cmsg
