Introduce multi-buffer support for xdp running in generic mode not always
linearizing the skb in netif_receive_generic_xdp routine.
Introduce page_pool in softnet_data structure
Changes since v4:
- fix compilation error if page_pools are not enabled
Changes since v3:
- introduce page_pool in softnet_data structure
- rely on page_pools for xdp_generic code
Changes since v2:
- rely on napi_alloc_frag() and napi_build_skb() to build the new skb
Changes since v1:
- explicitly keep the skb segmented in netif_skb_check_for_generic_xdp() and
do not rely on pskb_expand_head()
Lorenzo Bianconi (3):
net: introduce page_pool pointer in softnet_data percpu struct
xdp: rely on skb pointer reference in do_xdp_generic and
netif_receive_generic_xdp
xdp: add multi-buff support for xdp running in generic mode
drivers/net/tun.c | 4 +-
include/linux/netdevice.h | 3 +-
include/net/page_pool/helpers.h | 5 +
include/net/page_pool/types.h | 1 +
net/core/dev.c | 208 +++++++++++++++++++++++++++-----
net/core/page_pool.c | 5 +
net/core/skbuff.c | 5 +-
7 files changed, 199 insertions(+), 32 deletions(-)
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2.43.0
