From mboxrd@z Thu Jan 1 00:00:00 1970 From: Olivier Matz Subject: [PATCH 12/12] testpmd: add a verbose mode csum forward engine Date: Mon, 10 Nov 2014 16:59:26 +0100 Message-ID: <1415635166-1364-13-git-send-email-olivier.matz@6wind.com> References: <1415635166-1364-1-git-send-email-olivier.matz@6wind.com> Cc: jigsaw-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org To: dev-VfR2kkLFssw@public.gmane.org Return-path: In-Reply-To: <1415635166-1364-1-git-send-email-olivier.matz-pdR9zngts4EAvxtiuMwx3w@public.gmane.org> List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces-VfR2kkLFssw@public.gmane.org Sender: "dev" 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 7995ff5..74521d4 100644 --- a/app/test-pmd/csumonly.c +++ b/app/test-pmd/csumonly.c @@ -575,6 +575,57 @@ 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