From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 84370C433F5 for ; Thu, 2 Dec 2021 00:04:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1354081AbhLBAHZ (ORCPT ); Wed, 1 Dec 2021 19:07:25 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:41965 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1353972AbhLBAHU (ORCPT ); Wed, 1 Dec 2021 19:07:20 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1638403438; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=U/VVqJ2rvS3+utXonMTYrBEeM8oEcGBPKY47J7o2598=; b=ZIrBbXLQzkUR1tCw85ITHY9ioVmhxkMZcnDRTL4lVdo+wHaW9kTeEO/qcK9ESgO3RJ42DY dFRqKsJ2mlxUHAandiF6PhkrxjRlN4wcH22xjoswoHQkkxaZN0hUclJk+G6sfpm0pb1kNt v5RT3z61IuwKAi/vCfA1DctTDGp25tA= Received: from mail-ed1-f70.google.com (mail-ed1-f70.google.com [209.85.208.70]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-248-DWk6WA1UM8-S5oYeyc96SQ-1; Wed, 01 Dec 2021 19:03:55 -0500 X-MC-Unique: DWk6WA1UM8-S5oYeyc96SQ-1 Received: by mail-ed1-f70.google.com with SMTP id eg20-20020a056402289400b003eb56fcf6easo21746330edb.20 for ; Wed, 01 Dec 2021 16:03:54 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=U/VVqJ2rvS3+utXonMTYrBEeM8oEcGBPKY47J7o2598=; b=UMrnjW0EqsD/02sxzQiR+o1aa0w5mpWjlsbcmB5d6bjV6dJY0Uq2391LzdmkN7Jxm4 2eI084tk6Uzyn+hgGCTANNyOMrtYZK9EYA9c3CnPDre1kQP7+Fa9aFTo0J+ksnME35fg owq+uSE+I4D67Lyvv2vg2hDYFhtGbo3DpqAvpBOmtFdhWxdFb0l/Dne3i/bcNGFhJzkK 3siuP2gCL9dp68Jzzx5IRUJrWlFIyFRISGgnoU1xhY4HQ+ea1l9uFJgEkw4LE0oyTw+h Yw/YaBhDKG/oE/6+IpJsHGJpOTJTwNf8uM3rRM8Csd/R+cS9rXHQrKFlr+C4Kyo1UWJ8 7Cjw== X-Gm-Message-State: AOAM531JnJTgrfdyJd09g3vA13AFpgA8p+gfXtXohowPdJTiU7tyX/Wa gZLzOPSQGgh2v/SNiqXjt/tItKQn8xI2cOgxLDromXzvMFT1vF29yzEZdW2N166eOZeWCQzZE6V RLE5ms5/FIdaa X-Received: by 2002:a50:e102:: with SMTP id h2mr12566890edl.298.1638403433879; Wed, 01 Dec 2021 16:03:53 -0800 (PST) X-Google-Smtp-Source: ABdhPJyZmHop5Ge6qSzyuP7uAvHY/UWbBwr7FnWuIOUcaT9S7FEQFAGTzcI+yRyeuOzgpn3YScDHQA== X-Received: by 2002:a50:e102:: with SMTP id h2mr12566858edl.298.1638403433621; Wed, 01 Dec 2021 16:03:53 -0800 (PST) Received: from alrua-x1.borgediget.toke.dk ([45.145.92.2]) by smtp.gmail.com with ESMTPSA id g1sm621476eje.105.2021.12.01.16.03.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 01 Dec 2021 16:03:53 -0800 (PST) Received: by alrua-x1.borgediget.toke.dk (Postfix, from userid 1000) id ABD431802A0; Thu, 2 Dec 2021 01:03:52 +0100 (CET) From: =?UTF-8?q?Toke=20H=C3=B8iland-J=C3=B8rgensen?= To: Jesper Dangaard Brouer , Ilias Apalodimas , "David S. Miller" , Jakub Kicinski , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Martin KaFai Lau , Song Liu , Yonghong Song , John Fastabend , KP Singh Cc: =?UTF-8?q?Toke=20H=C3=B8iland-J=C3=B8rgensen?= , netdev@vger.kernel.org, bpf@vger.kernel.org Subject: [PATCH bpf-next 1/8] page_pool: Add callback to init pages when they are allocated Date: Thu, 2 Dec 2021 01:02:22 +0100 Message-Id: <20211202000232.380824-2-toke@redhat.com> X-Mailer: git-send-email 2.34.0 In-Reply-To: <20211202000232.380824-1-toke@redhat.com> References: <20211202000232.380824-1-toke@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org 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 --- include/net/page_pool.h | 2 ++ net/core/page_pool.c | 2 ++ 2 files changed, 4 insertions(+) diff --git a/include/net/page_pool.h b/include/net/page_pool.h index 3855f069627f..a71201854c41 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 { diff --git a/net/core/page_pool.c b/net/core/page_pool.c index 9b60e4301a44..fb5a90b9d574 100644 --- a/net/core/page_pool.c +++ b/net/core/page_pool.c @@ -219,6 +219,8 @@ static void page_pool_set_pp_info(struct page_pool *pool, { page->pp = pool; page->pp_magic |= PP_SIGNATURE; + if (unlikely(pool->p.init_callback)) + pool->p.init_callback(page, pool->p.init_arg); } static void page_pool_clear_pp_info(struct page *page) -- 2.34.0