Messages in this thread | | | From | Eric Dumazet <> | Date | Mon, 3 Jul 2023 19:15:48 +0200 | Subject | Re: Memory providers multiplexing (Was: [PATCH net-next v4 4/5] page_pool: remove PP_FLAG_PAGE_FRAG flag) |
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On Mon, Jul 3, 2023 at 4:45 PM David Ahern <dsahern@kernel.org> wrote:
> That is my expectation. The tcpdump is just an easy example of accessing > the skb page frags. skb_copy_and_csum_bits used by icmp is another > example that can walk frags wanting access to device memory. You did not > cause a panic or trip a WARN_ON for example with the tcpdump? >
ICMP packets do not land on the queues having devmem buffers, for obvious reasons.
Only chosen TCP flows are steered to these queues.
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