From 083772c9f972dcc248913b52a0dec1025baa1e16 Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Sun, 26 Nov 2023 15:07:30 -0800 Subject: net: page_pool: record pools per netdev Link the page pools with netdevs. This needs to be netns compatible so we have two options. Either we record the pools per netns and have to worry about moving them as the netdev gets moved. Or we record them directly on the netdev so they move with the netdev without any extra work. Implement the latter option. Since pools may outlast netdev we need a place to store orphans. In time honored tradition use loopback for this purpose. Reviewed-by: Mina Almasry Reviewed-by: Eric Dumazet Acked-by: Jesper Dangaard Brouer Signed-off-by: Jakub Kicinski Signed-off-by: Paolo Abeni --- include/linux/netdevice.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux/netdevice.h') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index e87caa81f70c..998c7aaa98b8 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -2447,6 +2447,10 @@ struct net_device { #if IS_ENABLED(CONFIG_DPLL) struct dpll_pin *dpll_pin; #endif +#if IS_ENABLED(CONFIG_PAGE_POOL) + /** @page_pools: page pools created for this netdevice */ + struct hlist_head page_pools; +#endif }; #define to_net_dev(d) container_of(d, struct net_device, dev) -- cgit v1.2.3