Now that we have a system-wide page pool, we can use that for the live frame mode of BPF_TEST_RUN (used by the XDP traffic generator), and avoid the cost of creating a separate page pool instance for each syscall invocation. See the individual patches for more details. This series targets net-next because it depends on this series of Lorenzo's, that adds a global system page pool: https://lore.kernel.org/r/cover.1707729884.git.lorenzo@xxxxxxxxxx Changelog: v2: - Change the cookie that marks the page for recycling to be a 128-bit value (Paolo) - Add a patch that removes the init_callback parameter from page pool (Olek) - Carry forward review tags from v1 Toke Høiland-Jørgensen (4): net: Register system page pool as an XDP memory model bpf: test_run: Use system page pool for XDP live frame mode bpf: test_run: Fix cacheline alignment of live XDP frame data structures page pool: Remove init_callback parameter include/linux/netdevice.h | 1 + include/net/page_pool/types.h | 4 - net/bpf/test_run.c | 143 +++++++++++++++++----------------- net/core/dev.c | 13 +++- net/core/page_pool.c | 4 - 5 files changed, 86 insertions(+), 79 deletions(-) -- 2.43.0
