dump struct sw_flow from vport/datapath
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+ cat /root/stap/ovs_vport_receive.stp#!/usr/local/bin/stapglobal startfunction timestamp:long() { return gettimeofday_us() - start }probe begin { start = gettimeofday_us() }probe module("openvswitch").function("ovs_vport_receive"){ print_backtrace() printf("parms: %s\n", $$parms); printf("execname: %s\n", execname()); printf("ts: %d\n", timestamp()/1000000); print_ubacktrace()}+ cd /root/stap+ chmod +x /root/stap/ovs_vport_receive.stp+ stap -d vhost -d vhost_net -d tun -d kernel -d openvswitch -d vport_vxlan -d vxlan -d /usr/lib64/libpthread-2.17.so -d /usr/local/sbin/ovs-vswitchd -d /usr/lib64/libc-2.17.so /root/stap/ovs_vport_receive.stp 0xffffffffa0972260 : ovs_vport_receive+0x0/0xd0 [openvswitch] 0xffffffffa0972e7e : netdev_port_receive+0xae/0x120 [openvswitch] 0xffffffffa0972f41 : netdev_frame_hook+0x51/0x60 [openvswitch] 0xffffffff8161839c : __netif_receive_skb_core+0x1dc/0xa00 [kernel] 0xffffffff81618bd8 : __netif_receive_skb+0x18/0x60 [kernel] 0xffffffff81618c60 : netif_receive_skb_internal+0x40/0xb0 [kernel] 0xffffffff81618cec : netif_receive_skb+0x1c/0x70 [kernel] 0xffffffffa0945f9f : tun_get_user+0x45f/0x800 [tun] 0xffffffffa094638e : tun_sendmsg+0x4e/0x70 [tun] 0xffffffffa09bf932 : handle_tx+0x282/0x540 [vhost_net] 0xffffffffa09bfc25 : handle_tx_kick+0x15/0x20 [vhost_net] 0xffffffffa09adcfe : vhost_worker+0x9e/0xf0 [vhost] 0xffffffff810b0711 : kthread+0x101/0x140 [kernel] 0xffffffff8173975c : ret_from_fork+0x2c/0x40 [kernel] 0x0 (inexact)parms: vport=0xffff88065fa54180 skb=0xffff8805d5eaaa00 tun_info=0x0crash> vport 0xffff88065fa54180struct vport { dev = 0xffff88061ec80000, dp = 0xffff8806628b6600, upcall_portids = 0xffff880c42c46840, port_no = 6, hash_node = { next = 0x0, pprev = 0xffff880620451018 }, dp_hash_node = { next = 0x0, pprev = 0xffff8806204a2030 }, ops = 0xffffffffa097d460, detach_list = { next = 0x0, prev = 0x0 }, rcu = { next = 0x0, func = 0x0 }}crash> datapath 0xffff8806628b6600struct datapath { rcu = { next = 0x0, func = 0x0 }, list_node = { next = 0xffff8806335815c0, prev = 0xffff8806335815c0 }, table = { ti = 0xffff880c436bcc40, ufid_ti = 0xffff880c1e59e840, mask_list = { next = 0x60f398810000, prev = 0xffff880c437d2900 }, last_rehash = 4641435406, count = 1, ufid_count = 1 }, ports = 0xffff8806204a2000, stats_percpu = 0x60f398805f00, net = { net = 0xffffffff81d1f880 <init_net> }, user_features = 3, max_headroom = 84}crash> table_instance 0xffff880c436bcc40struct table_instance { buckets = 0xffff88065d4ab000, n_buckets = 1024, rcu = { next = 0xffffffffffffffff, func = 0xffffffffffffffff }, node_ver = 1, hash_seed = 3405276875, keep_flows = false}crash> flex_array 0xffff88065d4ab000struct flex_array { { { element_size = 8, total_nr_elements = 1024, elems_per_part = 512, reciprocal_elems = { m = 1, sh1 = 1 '\001', sh2 = 8 '\b' }, parts = 0xffff88065d4ab018 },...crash> rd 0xffff88065d4ab018 2ffff88065d4ab018: ffff88065d4a8000 ffff88065d4af000 ..J]......J]....crash> rd ffff88065d4a8000 512...ffff88065d4a82d0: 0000000000000000 ffff88061b303660 ........`60........crash> sw_flow -ostruct sw_flow { [0] struct callback_head rcu; struct { struct hlist_node node[2]; u32 hash; [16] } flow_table; struct { struct hlist_node node[2]; u32 hash; [56] } ufid_table; [96] int stats_last_writer; [104] struct sw_flow_key key; [568] struct sw_flow_id id; [592] struct sw_flow_mask *mask; [600] struct sw_flow_actions *sf_acts; [608] struct flow_stats *stats[];}SIZE: 608ffff88061b303640 = ffff88061b303660 - 0x20crash> sw_flow ffff88061b303640struct sw_flow { rcu = { next = 0x0, func = 0x0 }, flow_table = { node = {{ next = 0x0, pprev = 0x0 }, { next = 0x0, pprev = 0xffff88065d4a82d8 }}, hash = 2181709571 }, ufid_table = { node = {{ next = 0x0, pprev = 0xffff880637011d70 }, { next = 0x0, pprev = 0x0 }}, hash = 3222370491 }, stats_last_writer = 10, key = { tun_opts = "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000", tun_opts_len = 0 '\000', tun_key = { tun_id = 0, u = { ipv4 = { src = 0, dst = 0 }, ipv6 = { src = { in6_u = { u6_addr8 = "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000", u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, u6_addr32 = {0, 0, 0, 0} } }, dst = { in6_u = { u6_addr8 = "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000", u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, u6_addr32 = {0, 0, 0, 0} } } } }, tun_flags = 0, tos = 0 '\000', ttl = 0 '\000', label = 0, tp_src = 0, tp_dst = 0 }, phy = { priority = 0, skb_mark = 0, in_port = 6 }, mac_proto = 1 '\001', tun_proto = 0 '\000', ovs_flow_hash = 0, recirc_id = 0, eth = { src = "\000\000\000\000\000", dst = "\000\000\000\000\000", vlan = { tpid = 0, tci = 0 }, cvlan = { tpid = 0, tci = 0 }, type = 1544 }, { mpls = { top_lse = 0 }, ip = { proto = 0 '\000', tos = 0 '\000', ttl = 0 '\000', frag = 0 '\000' } }, tp = { src = 0, dst = 0, flags = 0 }, { ipv4 = { addr = { src = 0, dst = 0 }, arp = { sha = "\000\000\000\000\000", tha = "\000\000\000\000\000" } }, ipv6 = { addr = { src = { in6_u = { u6_addr8 = "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000", u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, u6_addr32 = {0, 0, 0, 0} } }, dst = { in6_u = { u6_addr8 = "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000", u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, u6_addr32 = {0, 0, 0, 0} } } }, label = 0, nd = { target = { in6_u = { u6_addr8 = "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000", u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, u6_addr32 = {0, 0, 0, 0} } }, sll = "\000\000\000\000\000", tll = "\000\000\000\000\000" } } }, ct = { zone = 0, mark = 0, state = 0 '\000', labels = { ct_labels = "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000" } } }, id = { ufid_len = 16, { ufid = {964579198, 1219776320, 2588231175, 885363074}, unmasked_key = 0x48b44f40397e4f7e } }, mask = 0xffff880bf0f13400, sf_acts = 0xffff8805d5ea7d60, stats = 0xffff88061b3038a0} 0 0
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