From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wg0-f46.google.com (mail-wg0-f46.google.com [74.125.82.46]) by dpdk.org (Postfix) with ESMTP id 514907FA5 for ; Wed, 26 Nov 2014 15:54:31 +0100 (CET) Received: by mail-wg0-f46.google.com with SMTP id x12so3995364wgg.33 for ; Wed, 26 Nov 2014 07:05:28 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=Iwj5PnGGAwxk58Fbnpu6IiIHhLrAs5AsNM3B23cysPg=; b=Dhi4Cfx/OMG7XCa6T83D517q9G3ysuNpvNNkcF+bNLLA6MibU4HHbtkJAgb2mUIU/6 IiLz52/8/7BMpfrRQZ8Fws3s5PRlFXvFkQw+sQHcoLcFTWLQ4hlGtioPbVcB2XX+43iS r3IAS31J7sv9fJFzlRdDSzes7znGVbcsZb2z7zqGMs9GcusbqO3DFMaYOu4uVGMHWqgQ ciAVq+ZzxKVpRvox+qFILCnhYZFMwunNt+MqG4kF/yBjY7xHsEpiKbzXuxELaCppVw3s akPnMa54ULNKCeju1SaCu4YChwFK1kbEKZWilL8Wnpn+sOMKiWUSGZ19xva6UpUcq29B PZtg== X-Gm-Message-State: ALoCoQkraZM9uRbu2lj5gKHC4diizMvR+scbIHyzUQt1crtJP8HzCAHNL87Va0gK2wGnF3IPbuYI X-Received: by 10.194.122.10 with SMTP id lo10mr47421215wjb.19.1417014328509; Wed, 26 Nov 2014 07:05:28 -0800 (PST) Received: from glumotte.dev.6wind.com (guy78-3-82-239-227-177.fbx.proxad.net. [82.239.227.177]) by mx.google.com with ESMTPSA id bm1sm6682819wjb.45.2014.11.26.07.05.27 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 26 Nov 2014 07:05:28 -0800 (PST) From: Olivier Matz To: dev@dpdk.org Date: Wed, 26 Nov 2014 16:04:55 +0100 Message-Id: <1417014295-29064-14-git-send-email-olivier.matz@6wind.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1417014295-29064-1-git-send-email-olivier.matz@6wind.com> References: <1416524335-22753-1-git-send-email-olivier.matz@6wind.com> <1417014295-29064-1-git-send-email-olivier.matz@6wind.com> Cc: jigsaw@gmail.com Subject: [dpdk-dev] [PATCH v4 13/13] testpmd: add a verbose mode csum forward engine X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Nov 2014 14:54:33 -0000 If the user specifies 'set verbose 1' in testpmd command line, the csum forward engine will dump some informations about received and transmitted packets, especially which flags are set and what values are assigned to l2_len, l3_len, l4_len and tso_segsz. This can help someone implementing TSO or hardware checksum offload to understand how to configure the mbufs. Example of output for one packet: -------------- rx: l2_len=14 ethertype=800 l3_len=20 l4_proto=6 l4_len=20 tx: m->l2_len=14 m->l3_len=20 m->l4_len=20 tx: m->tso_segsz=800 tx: flags=PKT_TX_IP_CKSUM PKT_TX_TCP_SEG -------------- Signed-off-by: Olivier Matz --- app/test-pmd/csumonly.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) diff --git a/app/test-pmd/csumonly.c b/app/test-pmd/csumonly.c index 490342f..1a67c9d 100644 --- a/app/test-pmd/csumonly.c +++ b/app/test-pmd/csumonly.c @@ -470,6 +470,57 @@ pkt_burst_checksum_forward(struct fwd_stream *fs) m->tso_segsz = tso_segsz; m->ol_flags = ol_flags; + /* if verbose mode is enabled, dump debug info */ + if (verbose_level > 0) { + struct { + uint64_t flag; + uint64_t mask; + } tx_flags[] = { + { PKT_TX_IP_CKSUM, PKT_TX_IP_CKSUM }, + { PKT_TX_UDP_CKSUM, PKT_TX_L4_MASK }, + { PKT_TX_TCP_CKSUM, PKT_TX_L4_MASK }, + { PKT_TX_SCTP_CKSUM, PKT_TX_L4_MASK }, + { PKT_TX_VXLAN_CKSUM, PKT_TX_VXLAN_CKSUM }, + { PKT_TX_TCP_SEG, PKT_TX_TCP_SEG }, + }; + unsigned j; + const char *name; + + printf("-----------------\n"); + /* dump rx parsed packet info */ + printf("rx: l2_len=%d ethertype=%x l3_len=%d " + "l4_proto=%d l4_len=%d\n", + l2_len, rte_be_to_cpu_16(ethertype), + l3_len, l4_proto, l4_len); + if (tunnel == 1) + printf("rx: outer_l2_len=%d outer_ethertype=%x " + "outer_l3_len=%d\n", outer_l2_len, + rte_be_to_cpu_16(outer_ethertype), + outer_l3_len); + /* dump tx packet info */ + if ((testpmd_ol_flags & (TESTPMD_TX_OFFLOAD_IP_CKSUM | + TESTPMD_TX_OFFLOAD_UDP_CKSUM | + TESTPMD_TX_OFFLOAD_TCP_CKSUM | + TESTPMD_TX_OFFLOAD_SCTP_CKSUM)) || + tso_segsz != 0) + printf("tx: m->l2_len=%d m->l3_len=%d " + "m->l4_len=%d\n", + m->l2_len, m->l3_len, m->l4_len); + if ((tunnel == 1) && + (testpmd_ol_flags & TESTPMD_TX_OFFLOAD_VXLAN_CKSUM)) + printf("tx: m->inner_l2_len=%d m->inner_l3_len=%d\n", + m->inner_l2_len, m->inner_l3_len); + if (tso_segsz != 0) + printf("tx: m->tso_segsz=%d\n", m->tso_segsz); + printf("tx: flags="); + for (j = 0; j < sizeof(tx_flags)/sizeof(*tx_flags); j++) { + name = rte_get_tx_ol_flag_name(tx_flags[j].flag); + if ((m->ol_flags & tx_flags[j].mask) == + tx_flags[j].flag) + printf("%s ", name); + } + printf("\n"); + } } nb_tx = rte_eth_tx_burst(fs->tx_port, fs->tx_queue, pkts_burst, nb_rx); fs->tx_packets += nb_tx; -- 2.1.0