user/sven/linux.git/include/linux/netdevice.h, branch v6.9.11

net: move dev->state into net_device_read_txrx group

2024-03-19T09:47:47Z

dev->state can be read in rx and tx fast paths. netif_running() which needs dev->state is called from - enqueue_to_backlog() [RX path] - __dev_direct_xmit() [TX path] Fixes: 43a71cd66b9c ("net-device: reorganize net_device fast path variables") Signed-off-by: Eric Dumazet Cc: Coco Li Reviewed-by: Jiri Pirko Link: https://lore.kernel.org/r/20240314200845.3050179-1-edumazet@google.com Signed-off-by: Paolo Abeni

net: gro: move two declarations to include/net/gro.h

2024-03-11T21:13:14Z

Move gro_find_receive_by_type() and gro_find_complete_by_type() to include/net/gro.h where they belong. Also use _NET_GRO_H instead of _NET_IPV6_GRO_H to protect include/net/gro.h from multiple inclusions. Signed-off-by: Eric Dumazet Reviewed-by: Simon Horman Link: https://lore.kernel.org/r/20240308102230.296224-1-edumazet@google.com Signed-off-by: Jakub Kicinski

netdev: add per-queue statistics

2024-03-08T05:13:25Z

The ethtool-nl family does a good job exposing various protocol related and IEEE/IETF statistics which used to get dumped under ethtool -S, with creative names. Queue stats don't have a netlink API, yet, and remain a lion's share of ethtool -S output for new drivers. Not only is that bad because the names differ driver to driver but it's also bug-prone. Intuitively drivers try to report only the stats for active queues, but querying ethtool stats involves multiple system calls, and the number of stats is read separately from the stats themselves. Worse still when user space asks for values of the stats, it doesn't inform the kernel how big the buffer is. If number of stats increases in the meantime kernel will overflow user buffer. Add a netlink API for dumping queue stats. Queue information is exposed via the netdev-genl family, so add the stats there. Support per-queue and sum-for-device dumps. Latter will be useful when subsequent patches add more interesting common stats than just bytes and packets. The API does not currently distinguish between HW and SW stats. The expectation is that the source of the stats will either not matter much (good packets) or be obvious (skb alloc errors). Acked-by: Stanislav Fomichev Reviewed-by: Amritha Nambiar Reviewed-by: Xuan Zhuo Link: https://lore.kernel.org/r/20240306195509.1502746-2-kuba@kernel.org Signed-off-by: Jakub Kicinski

net: introduce include/net/rps.h

2024-03-08T05:12:43Z

Move RPS related structures and helpers from include/linux/netdevice.h and include/net/sock.h to a new include file. Signed-off-by: Eric Dumazet Acked-by: Soheil Hassas Yeganeh Reviewed-by: David Ahern Link: https://lore.kernel.org/r/20240306160031.874438-18-edumazet@google.com Signed-off-by: Jakub Kicinski

net: move dev_rx_weight to net_hotdata

2024-03-08T05:12:42Z

dev_rx_weight is read from process_backlog(). Move it to net_hotdata for better cache locality. Signed-off-by: Eric Dumazet Acked-by: Soheil Hassas Yeganeh Reviewed-by: David Ahern Link: https://lore.kernel.org/r/20240306160031.874438-10-edumazet@google.com Signed-off-by: Jakub Kicinski

net: move dev_tx_weight to net_hotdata

2024-03-08T05:12:42Z

dev_tx_weight is used in tx fast path. Move it to net_hotdata for better cache locality. Signed-off-by: Eric Dumazet Acked-by: Soheil Hassas Yeganeh Reviewed-by: David Ahern Link: https://lore.kernel.org/r/20240306160031.874438-9-edumazet@google.com Signed-off-by: Jakub Kicinski

net: move netdev_max_backlog to net_hotdata

2024-03-08T05:12:42Z

netdev_max_backlog is used in rx fat path. Move it to net_hodata for better cache locality. Signed-off-by: Eric Dumazet Acked-by: Soheil Hassas Yeganeh Reviewed-by: David Ahern Link: https://lore.kernel.org/r/20240306160031.874438-6-edumazet@google.com Signed-off-by: Jakub Kicinski

net: move ptype_all into net_hotdata

2024-03-08T05:12:41Z

ptype_all is used in rx/tx fast paths. Move it to net_hotdata for better cache locality. Signed-off-by: Eric Dumazet Acked-by: Soheil Hassas Yeganeh Reviewed-by: David Ahern Link: https://lore.kernel.org/r/20240306160031.874438-5-edumazet@google.com Signed-off-by: Jakub Kicinski

net: introduce struct net_hotdata

2024-03-08T05:12:41Z

Instead of spreading networking critical fields all over the places, add a custom net_hotdata structure so that we can precisely control its layout. In this first patch, move : - gro_normal_batch used in rx (GRO stack) - offload_base used in rx and tx (GRO and TSO stacks) Signed-off-by: Eric Dumazet Acked-by: Soheil Hassas Yeganeh Reviewed-by: David Ahern Link: https://lore.kernel.org/r/20240306160031.874438-2-edumazet@google.com Signed-off-by: Jakub Kicinski

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2024-03-07T18:29:36Z

Cross-merge networking fixes after downstream PR. No conflicts. Adjacent changes: net/core/page_pool_user.c 0b11b1c5c320 ("netdev: let netlink core handle -EMSGSIZE errors") 429679dcf7d9 ("page_pool: fix netlink dump stop/resume") Signed-off-by: Jakub Kicinski