From patchwork Tue Jun 22 18:56:47 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ilya Maximets X-Patchwork-Id: 466283 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 14A97C48BE5 for ; Tue, 22 Jun 2021 18:57:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EFC2561108 for ; Tue, 22 Jun 2021 18:56:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232642AbhFVS7O (ORCPT ); Tue, 22 Jun 2021 14:59:14 -0400 Received: from relay12.mail.gandi.net ([217.70.178.232]:42363 "EHLO relay12.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230146AbhFVS7L (ORCPT ); Tue, 22 Jun 2021 14:59:11 -0400 Received: (Authenticated sender: i.maximets@ovn.org) by relay12.mail.gandi.net (Postfix) with ESMTPSA id 2E1AA200004; Tue, 22 Jun 2021 18:56:50 +0000 (UTC) From: Ilya Maximets To: =?utf-8?b?QmrDtnJuIFTDtnBlbA==?= Cc: Magnus Karlsson , Jonathan Lemon , "David S. Miller" , Jakub Kicinski , Jonathan Corbet , netdev@vger.kernel.org, bpf@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Ilya Maximets Subject: [PATCH] docs: af_xdp: consistent indentation in examples Date: Tue, 22 Jun 2021 20:56:47 +0200 Message-Id: <20210622185647.3705104-1-i.maximets@ovn.org> X-Mailer: git-send-email 2.26.3 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Examples in this document use all kinds of indentation from 3 to 5 spaces and even mixed with tabs. Making them all even and equal to 4 spaces. Signed-off-by: Ilya Maximets --- Documentation/networking/af_xdp.rst | 32 ++++++++++++++--------------- 1 file changed, 16 insertions(+), 16 deletions(-) diff --git a/Documentation/networking/af_xdp.rst b/Documentation/networking/af_xdp.rst index 2ccc5644cc98..42576880aa4a 100644 --- a/Documentation/networking/af_xdp.rst +++ b/Documentation/networking/af_xdp.rst @@ -290,19 +290,19 @@ round-robin example of distributing packets is shown below: #define MAX_SOCKS 16 struct { - __uint(type, BPF_MAP_TYPE_XSKMAP); - __uint(max_entries, MAX_SOCKS); - __uint(key_size, sizeof(int)); - __uint(value_size, sizeof(int)); + __uint(type, BPF_MAP_TYPE_XSKMAP); + __uint(max_entries, MAX_SOCKS); + __uint(key_size, sizeof(int)); + __uint(value_size, sizeof(int)); } xsks_map SEC(".maps"); static unsigned int rr; SEC("xdp_sock") int xdp_sock_prog(struct xdp_md *ctx) { - rr = (rr + 1) & (MAX_SOCKS - 1); + rr = (rr + 1) & (MAX_SOCKS - 1); - return bpf_redirect_map(&xsks_map, rr, XDP_DROP); + return bpf_redirect_map(&xsks_map, rr, XDP_DROP); } Note, that since there is only a single set of FILL and COMPLETION @@ -379,7 +379,7 @@ would look like this for the TX path: .. code-block:: c if (xsk_ring_prod__needs_wakeup(&my_tx_ring)) - sendto(xsk_socket__fd(xsk_handle), NULL, 0, MSG_DONTWAIT, NULL, 0); + sendto(xsk_socket__fd(xsk_handle), NULL, 0, MSG_DONTWAIT, NULL, 0); I.e., only use the syscall if the flag is set. @@ -442,9 +442,9 @@ purposes. The supported statistics are shown below: .. code-block:: c struct xdp_statistics { - __u64 rx_dropped; /* Dropped for reasons other than invalid desc */ - __u64 rx_invalid_descs; /* Dropped due to invalid descriptor */ - __u64 tx_invalid_descs; /* Dropped due to invalid descriptor */ + __u64 rx_dropped; /* Dropped for reasons other than invalid desc */ + __u64 rx_invalid_descs; /* Dropped due to invalid descriptor */ + __u64 tx_invalid_descs; /* Dropped due to invalid descriptor */ }; XDP_OPTIONS getsockopt @@ -483,15 +483,15 @@ like this: .. code-block:: c // struct xdp_rxtx_ring { - // __u32 *producer; - // __u32 *consumer; - // struct xdp_desc *desc; + // __u32 *producer; + // __u32 *consumer; + // struct xdp_desc *desc; // }; // struct xdp_umem_ring { - // __u32 *producer; - // __u32 *consumer; - // __u64 *desc; + // __u32 *producer; + // __u32 *consumer; + // __u64 *desc; // }; // typedef struct xdp_rxtx_ring RING;