From 35b2e549894b7ef0b6e7f3a70c2ab75b767cfce9 Mon Sep 17 00:00:00 2001 From: Toke Høiland-Jørgensen Date: Mon, 3 Jan 2022 16:08:07 +0100 Subject: page_pool: Add callback to init pages when they are allocated MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add a new callback function to page_pool that, if set, will be called every time a new page is allocated. This will be used from bpf_test_run() to initialise the page data with the data provided by userspace when running XDP programs with redirect turned on. Signed-off-by: Toke Høiland-Jørgensen Signed-off-by: Alexei Starovoitov Acked-by: John Fastabend Acked-by: Jesper Dangaard Brouer Link: https://lore.kernel.org/bpf/20220103150812.87914-3-toke@redhat.com --- include/net/page_pool.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/net') diff --git a/include/net/page_pool.h b/include/net/page_pool.h index a4082406a003..d807b6800a4a 100644 --- a/include/net/page_pool.h +++ b/include/net/page_pool.h @@ -80,6 +80,8 @@ struct page_pool_params { enum dma_data_direction dma_dir; /* DMA mapping direction */ unsigned int max_len; /* max DMA sync memory size */ unsigned int offset; /* DMA addr offset */ + void (*init_callback)(struct page *page, void *arg); + void *init_arg; }; struct page_pool { -- cgit v1.2.3