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 X-Spam-Level: X-Spam-Status: No, score=-8.6 required=3.0 tests=DATE_IN_PAST_06_12, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 62078C433FF for ; Tue, 30 Jul 2019 17:10:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3F4F9206A2 for ; Tue, 30 Jul 2019 17:10:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729810AbfG3RKD (ORCPT ); Tue, 30 Jul 2019 13:10:03 -0400 Received: from mga05.intel.com ([192.55.52.43]:33179 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726246AbfG3RKC (ORCPT ); Tue, 30 Jul 2019 13:10:02 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jul 2019 10:10:02 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,327,1559545200"; d="scan'208";a="183192660" Received: from silpixa00399838.ir.intel.com (HELO silpixa00399838.ger.corp.intel.com) ([10.237.223.140]) by orsmga002.jf.intel.com with ESMTP; 30 Jul 2019 10:09:59 -0700 From: Kevin Laatz To: netdev@vger.kernel.org, ast@kernel.org, daniel@iogearbox.net, bjorn.topel@intel.com, magnus.karlsson@intel.com, jakub.kicinski@netronome.com, jonathan.lemon@gmail.com, saeedm@mellanox.com, maximmi@mellanox.com, stephen@networkplumber.org Cc: bruce.richardson@intel.com, ciara.loftus@intel.com, bpf@vger.kernel.org, intel-wired-lan@lists.osuosl.org, Kevin Laatz Subject: [PATCH bpf-next v4 08/11] samples/bpf: add unaligned chunks mode support to xdpsock Date: Tue, 30 Jul 2019 08:53:57 +0000 Message-Id: <20190730085400.10376-9-kevin.laatz@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190730085400.10376-1-kevin.laatz@intel.com> References: <20190724051043.14348-1-kevin.laatz@intel.com> <20190730085400.10376-1-kevin.laatz@intel.com> Sender: bpf-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org This patch adds support for the unaligned chunks mode. The addition of the unaligned chunks option will allow users to run the application with more relaxed chunk placement in the XDP umem. Unaligned chunks mode can be used with the '-u' or '--unaligned' command line options. Signed-off-by: Kevin Laatz Signed-off-by: Ciara Loftus --- v4: - updated help text for -f - use new chunk flag define --- samples/bpf/xdpsock_user.c | 20 +++++++++++++++++--- 1 file changed, 17 insertions(+), 3 deletions(-) diff --git a/samples/bpf/xdpsock_user.c b/samples/bpf/xdpsock_user.c index 93eaaf7239b2..756b00eb1afe 100644 --- a/samples/bpf/xdpsock_user.c +++ b/samples/bpf/xdpsock_user.c @@ -51,6 +51,7 @@ typedef __u64 u64; typedef __u32 u32; +typedef __u16 u16; static unsigned long prev_time; @@ -67,6 +68,8 @@ static int opt_ifindex; static int opt_queue; static int opt_poll; static int opt_interval = 1; +static u16 opt_umem_flags; +static int opt_unaligned_chunks; static u32 opt_xdp_bind_flags; static int opt_xsk_frame_size = XSK_UMEM__DEFAULT_FRAME_SIZE; static __u32 prog_id; @@ -282,7 +285,9 @@ static struct xsk_umem_info *xsk_configure_umem(void *buffer, u64 size) .comp_size = XSK_RING_CONS__DEFAULT_NUM_DESCS, .frame_size = opt_xsk_frame_size, .frame_headroom = XSK_UMEM__DEFAULT_FRAME_HEADROOM, + .flags = opt_umem_flags }; + int ret; umem = calloc(1, sizeof(*umem)); @@ -291,6 +296,7 @@ static struct xsk_umem_info *xsk_configure_umem(void *buffer, u64 size) ret = xsk_umem__create(&umem->umem, buffer, size, &umem->fq, &umem->cq, &cfg); + if (ret) exit_with_error(-ret); @@ -352,6 +358,7 @@ static struct option long_options[] = { {"zero-copy", no_argument, 0, 'z'}, {"copy", no_argument, 0, 'c'}, {"frame-size", required_argument, 0, 'f'}, + {"unaligned", no_argument, 0, 'u'}, {0, 0, 0, 0} }; @@ -371,7 +378,8 @@ static void usage(const char *prog) " -n, --interval=n Specify statistics update interval (default 1 sec).\n" " -z, --zero-copy Force zero-copy mode.\n" " -c, --copy Force copy mode.\n" - " -f, --frame-size=n Set the frame size (must be a power of two, default is %d).\n" + " -f, --frame-size=n Set the frame size (must be a power of two in aligned mode, default is %d).\n" + " -u, --unaligned Enable unaligned chunk placement\n" "\n"; fprintf(stderr, str, prog, XSK_UMEM__DEFAULT_FRAME_SIZE); exit(EXIT_FAILURE); @@ -384,7 +392,7 @@ static void parse_command_line(int argc, char **argv) opterr = 0; for (;;) { - c = getopt_long(argc, argv, "Frtli:q:psSNn:czf:", long_options, + c = getopt_long(argc, argv, "Frtli:q:psSNn:czf:u", long_options, &option_index); if (c == -1) break; @@ -424,12 +432,17 @@ static void parse_command_line(int argc, char **argv) case 'c': opt_xdp_bind_flags |= XDP_COPY; break; + case 'u': + opt_umem_flags |= XDP_UMEM_UNALIGNED_CHUNK_FLAG; + opt_unaligned_chunks = 1; + break; case 'F': opt_xdp_flags &= ~XDP_FLAGS_UPDATE_IF_NOEXIST; break; case 'f': opt_xsk_frame_size = atoi(optarg); break; + default: usage(basename(argv[0])); } @@ -442,7 +455,8 @@ static void parse_command_line(int argc, char **argv) usage(basename(argv[0])); } - if (opt_xsk_frame_size & (opt_xsk_frame_size - 1)) { + if ((opt_xsk_frame_size & (opt_xsk_frame_size - 1)) && + !opt_unaligned_chunks) { fprintf(stderr, "--frame-size=%d is not a power of two\n", opt_xsk_frame_size); usage(basename(argv[0])); -- 2.17.1 From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kevin Laatz Date: Tue, 30 Jul 2019 08:53:57 +0000 Subject: [Intel-wired-lan] [PATCH bpf-next v4 08/11] samples/bpf: add unaligned chunks mode support to xdpsock In-Reply-To: <20190730085400.10376-1-kevin.laatz@intel.com> References: <20190724051043.14348-1-kevin.laatz@intel.com> <20190730085400.10376-1-kevin.laatz@intel.com> Message-ID: <20190730085400.10376-9-kevin.laatz@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: intel-wired-lan@osuosl.org List-ID: This patch adds support for the unaligned chunks mode. The addition of the unaligned chunks option will allow users to run the application with more relaxed chunk placement in the XDP umem. Unaligned chunks mode can be used with the '-u' or '--unaligned' command line options. Signed-off-by: Kevin Laatz Signed-off-by: Ciara Loftus --- v4: - updated help text for -f - use new chunk flag define --- samples/bpf/xdpsock_user.c | 20 +++++++++++++++++--- 1 file changed, 17 insertions(+), 3 deletions(-) diff --git a/samples/bpf/xdpsock_user.c b/samples/bpf/xdpsock_user.c index 93eaaf7239b2..756b00eb1afe 100644 --- a/samples/bpf/xdpsock_user.c +++ b/samples/bpf/xdpsock_user.c @@ -51,6 +51,7 @@ typedef __u64 u64; typedef __u32 u32; +typedef __u16 u16; static unsigned long prev_time; @@ -67,6 +68,8 @@ static int opt_ifindex; static int opt_queue; static int opt_poll; static int opt_interval = 1; +static u16 opt_umem_flags; +static int opt_unaligned_chunks; static u32 opt_xdp_bind_flags; static int opt_xsk_frame_size = XSK_UMEM__DEFAULT_FRAME_SIZE; static __u32 prog_id; @@ -282,7 +285,9 @@ static struct xsk_umem_info *xsk_configure_umem(void *buffer, u64 size) .comp_size = XSK_RING_CONS__DEFAULT_NUM_DESCS, .frame_size = opt_xsk_frame_size, .frame_headroom = XSK_UMEM__DEFAULT_FRAME_HEADROOM, + .flags = opt_umem_flags }; + int ret; umem = calloc(1, sizeof(*umem)); @@ -291,6 +296,7 @@ static struct xsk_umem_info *xsk_configure_umem(void *buffer, u64 size) ret = xsk_umem__create(&umem->umem, buffer, size, &umem->fq, &umem->cq, &cfg); + if (ret) exit_with_error(-ret); @@ -352,6 +358,7 @@ static struct option long_options[] = { {"zero-copy", no_argument, 0, 'z'}, {"copy", no_argument, 0, 'c'}, {"frame-size", required_argument, 0, 'f'}, + {"unaligned", no_argument, 0, 'u'}, {0, 0, 0, 0} }; @@ -371,7 +378,8 @@ static void usage(const char *prog) " -n, --interval=n Specify statistics update interval (default 1 sec).\n" " -z, --zero-copy Force zero-copy mode.\n" " -c, --copy Force copy mode.\n" - " -f, --frame-size=n Set the frame size (must be a power of two, default is %d).\n" + " -f, --frame-size=n Set the frame size (must be a power of two in aligned mode, default is %d).\n" + " -u, --unaligned Enable unaligned chunk placement\n" "\n"; fprintf(stderr, str, prog, XSK_UMEM__DEFAULT_FRAME_SIZE); exit(EXIT_FAILURE); @@ -384,7 +392,7 @@ static void parse_command_line(int argc, char **argv) opterr = 0; for (;;) { - c = getopt_long(argc, argv, "Frtli:q:psSNn:czf:", long_options, + c = getopt_long(argc, argv, "Frtli:q:psSNn:czf:u", long_options, &option_index); if (c == -1) break; @@ -424,12 +432,17 @@ static void parse_command_line(int argc, char **argv) case 'c': opt_xdp_bind_flags |= XDP_COPY; break; + case 'u': + opt_umem_flags |= XDP_UMEM_UNALIGNED_CHUNK_FLAG; + opt_unaligned_chunks = 1; + break; case 'F': opt_xdp_flags &= ~XDP_FLAGS_UPDATE_IF_NOEXIST; break; case 'f': opt_xsk_frame_size = atoi(optarg); break; + default: usage(basename(argv[0])); } @@ -442,7 +455,8 @@ static void parse_command_line(int argc, char **argv) usage(basename(argv[0])); } - if (opt_xsk_frame_size & (opt_xsk_frame_size - 1)) { + if ((opt_xsk_frame_size & (opt_xsk_frame_size - 1)) && + !opt_unaligned_chunks) { fprintf(stderr, "--frame-size=%d is not a power of two\n", opt_xsk_frame_size); usage(basename(argv[0])); -- 2.17.1