On 8/11/20 3:55 PM, Ramamurthy, Harshitha wrote:
> is a pre-cursor to potentially calling the in-kernel flow dissector from
> a helper function.
>
That is going to be a challenge to do in a way that does not impact the
kernel's ability to change as needed, and I suspect it will be much
slower tha
On Mon, 2020-08-10 at 13:02 -0600, David Ahern wrote:
> On 8/10/20 12:28 PM, Harshitha Ramamurthy wrote:
> > This patch adds a helper function called bpf_get_skb_hash to
> > calculate
> > the skb hash for a packet at the XDP layer. In the helper function,
>
> Why? i.e., expected use case?
>
> Pul
Ramamurthy, Harshitha would like to recall the message, "[RFC PATCH bpf-next]
bpf: add bpf_get_skb_hash helper function".
On 8/10/20 12:28 PM, Harshitha Ramamurthy wrote:
> This patch adds a helper function called bpf_get_skb_hash to calculate
> the skb hash for a packet at the XDP layer. In the helper function,
Why? i.e., expected use case?
Pulling this from hardware when possible is better. e.g., Saeed's
hardware
This patch adds a helper function called bpf_get_skb_hash to calculate
the skb hash for a packet at the XDP layer. In the helper function,
a local skb is allocated and we populate the fields needed in the skb
before calling skb_get_hash. To avoid memory allocations for each packet,
we allocate an s
