The system and netdev datapath have different default pmd_id, which
resulted in empty output of ofproto/detrace with kernel datapath.

Make sure we use the correct default pmd_id when it's not specified
as an argument. At the same time move slightly adjusted test into
system tests so it is tested with both datapaths.

Fixes: 600125b2c380 ("ofproto: Add ofproto/detrace command to map UFIDs to 
OpenFlow.")
Signed-off-by: Ales Musil <[email protected]>
---
 ofproto/ofproto-dpif-upcall.c | 11 ++++-
 tests/ofproto-dpif.at         | 56 -----------------------
 tests/system-traffic.at       | 86 +++++++++++++++++++++++++++++++++++
 3 files changed, 95 insertions(+), 58 deletions(-)

diff --git a/ofproto/ofproto-dpif-upcall.c b/ofproto/ofproto-dpif-upcall.c
index e7d4c2b2c..9d0f4590d 100644
--- a/ofproto/ofproto-dpif-upcall.c
+++ b/ofproto/ofproto-dpif-upcall.c
@@ -3338,8 +3338,9 @@ static void
 upcall_unixctl_ofproto_detrace(struct unixctl_conn *conn, int argc,
                                const char *argv[], void *aux OVS_UNUSED)
 {
-    unsigned int pmd_id = NON_PMD_CORE_ID;
     const char *key_s = argv[1];
+    const char *pmd_str = NULL;
+    unsigned int pmd_id;
     ovs_u128 ufid;
 
     if (odp_ufid_from_string(key_s, &ufid) <= 0) {
@@ -3348,7 +3349,7 @@ upcall_unixctl_ofproto_detrace(struct unixctl_conn *conn, 
int argc,
     }
 
     if (argc == 3) {
-        const char *pmd_str = argv[2];
+        pmd_str = argv[2];
         if (!ovs_scan(pmd_str, "pmd=%d", &pmd_id)) {
             unixctl_command_reply_error(conn,
                                         "Invalid pmd argument format. "
@@ -3361,6 +3362,12 @@ upcall_unixctl_ofproto_detrace(struct unixctl_conn 
*conn, int argc,
     struct udpif *udpif;
 
     LIST_FOR_EACH (udpif, list_node, &all_udpifs) {
+        if (!pmd_str) {
+            pmd_id = !strcmp(udpif->dpif->dpif_class->type, "system")
+                     ? PMD_ID_NULL
+                     : NON_PMD_CORE_ID;
+        }
+
         struct udpif_key *ukey = ukey_lookup(udpif, &ufid, pmd_id);
         if (!ukey) {
             continue;
diff --git a/tests/ofproto-dpif.at b/tests/ofproto-dpif.at
index 18bd359bf..8f9eab0d2 100644
--- a/tests/ofproto-dpif.at
+++ b/tests/ofproto-dpif.at
@@ -12797,62 +12797,6 @@ Datapath actions: 
psample(group=42,cookie=0x64000000c8),drop
 OVS_VSWITCHD_STOP("/Enabling an unsupported feature is very dangerous/d")
 AT_CLEANUP
 
-AT_SETUP([ofproto-dpif - Dump OF rules corresponding to UFID])
-OVS_VSWITCHD_START
-
-add_of_ports br0 1 2 3
-
-dnl Add some OpenFlow rules and groups.
-AT_DATA([groups.txt], [dnl
-group_id=1,type=select,selection_method=dp_hash,bucket=bucket_id:0,weight:100,actions=ct(commit,table=2,nat(dst=20.0.0.2))
-group_id=2,type=all,bucket=resubmit(,3),bucket=resubmit(,4)
-])
-AT_DATA([flows.txt], [dnl
-table=0,priority=100,cookie=0x12345678,in_port=p1,ip,nw_dst=10.0.0.2,actions=resubmit(,1)
-table=1,priority=200,ip,actions=group:1
-table=2,ip,actions=group:2
-table=3,ip,actions=p2
-table=4,ip,actions=p3
-])
-AT_CHECK([ovs-ofctl add-groups br0 groups.txt])
-AT_CHECK([ovs-ofctl add-flows br0 flows.txt])
-
-AT_CHECK([ovs-appctl netdev-dummy/receive p1 
'ipv4(src=10.0.0.1,dst=10.0.0.2,proto=6),tcp(src=1,dst=2)'])
-AT_CHECK([ovs-appctl netdev-dummy/receive p1 
'ipv4(src=10.0.0.1,dst=10.0.0.2,proto=6),tcp(src=1,dst=2)'])
-AT_CHECK([ovs-appctl revalidator/wait])
-AT_CHECK([ovs-appctl revalidator/pause])
-
-AT_CHECK([ovs-appctl dpctl/dump-flows | strip_used | strip_stats | 
strip_duration | strip_dp_hash | sort], [0], [dnl
-flow-dump from the main thread:
-recirc_id(0),in_port(1),packet_type(ns=0,id=0),eth_type(0x0800),ipv4(dst=10.0.0.2,frag=no),
 packets:0, bytes:0, used:0.0s, actions:hash(l4(0)),recirc(0x1)
-recirc_id(0x1),in_port(1),packet_type(ns=0,id=0),eth_type(0x0800),ipv4(frag=no),
 packets:0, bytes:0, used:0.0s, actions:ct(commit,nat(dst=20.0.0.2)),recirc(0x2)
-recirc_id(0x2),in_port(1),packet_type(ns=0,id=0),eth_type(0x0800),ipv4(frag=no),
 packets:0, bytes:0, used:0.0s, actions:2,3
-])
-
-ufid=$(ovs-appctl dpctl/dump-flows -m filter='recirc_id(0)' | parse_ufid)
-AT_CHECK([ovs-appctl ofproto/detrace $ufid | ofctl_strip], [0], [dnl
-cookie=0x12345678, n_packets=2, n_bytes=236, 
priority=100,ip,in_port=1,nw_dst=10.0.0.2,actions=resubmit(,1)
-table_id=1, n_packets=2, n_bytes=236, priority=200,ip,actions=group:1
-])
-
-ufid=$(ovs-appctl dpctl/dump-flows -m filter='recirc_id(0x1)' | parse_ufid)
-AT_CHECK([ovs-appctl ofproto/detrace $ufid | ofctl_strip], [0], [dnl
-group_id=1,type=select,selection_method=dp_hash,bucket=bucket_id:0,weight:100,actions=ct(commit,table=2,nat(dst=20.0.0.2))
-])
-
-ufid=$(ovs-appctl dpctl/dump-flows -m filter='recirc_id(0x2)' | parse_ufid)
-AT_CHECK([ovs-appctl ofproto/detrace $ufid | ofctl_strip], [0], [dnl
-table_id=2, n_packets=2, n_bytes=236, ip,actions=group:2
-table_id=3, n_packets=2, n_bytes=236, ip,actions=output:2
-table_id=4, n_packets=2, n_bytes=236, ip,actions=output:3
-group_id=2,type=all,bucket=bucket_id:0,actions=resubmit(,3),bucket=bucket_id:1,actions=resubmit(,4)
-])
-
-AT_CHECK([ovs-appctl revalidator/resume])
-
-OVS_VSWITCHD_STOP
-AT_CLEANUP
-
 AT_SETUP([ofproto-dpif - Cleanup missing datapath flows])
 
 OVS_VSWITCHD_START
diff --git a/tests/system-traffic.at b/tests/system-traffic.at
index a04d96110..afcc0d508 100644
--- a/tests/system-traffic.at
+++ b/tests/system-traffic.at
@@ -2530,6 +2530,92 @@ 
recirc_id(<recirc>),in_port(2),eth_type(0x86dd),ipv6(proto=58,frag=no),icmpv6(ty
 OVS_TRAFFIC_VSWITCHD_STOP
 AT_CLEANUP
 
+AT_SETUP([datapath - Dump OF rules corresponding to UFID])
+CHECK_NO_TC_OFFLOAD()
+OVS_TRAFFIC_VSWITCHD_START()
+
+ADD_NAMESPACES(at_ns0, at_ns1)
+
+ADD_VETH(p1, at_ns0, br0, "10.0.0.1/24")
+ADD_VETH(p2, at_ns1, br0, "10.0.0.2/24")
+
+AT_CHECK([ovs-vsctl -- set interface ovs-p1 ofport_request=1 \
+                    -- set interface ovs-p2 ofport_request=2])
+
+dnl Add some OpenFlow rules and groups.
+AT_DATA([groups.txt], [dnl
+group_id=1,type=select,selection_method=dp_hash,bucket=bucket_id:0,weight:100,actions=ct(commit,table=2)
+])
+AT_DATA([flows.txt], [dnl
+table=0,arp,actions=NORMAL
+table=0,priority=100,cookie=0x12345678,in_port=ovs-p1,ip,nw_dst=10.0.0.2,actions=resubmit(,1)
+table=0,priority=100,cookie=0xabcedf,in_port=ovs-p2,ip,nw_dst=10.0.0.1,actions=ct(table=3)
+table=1,priority=200,ip,actions=group:1
+table=2,ip,actions=ovs-p2
+table=3,ip,actions=ovs-p1
+])
+AT_CHECK([ovs-ofctl add-groups br0 groups.txt])
+AT_CHECK([ovs-ofctl add-flows br0 flows.txt])
+
+NS_CHECK_EXEC([at_ns0], [ping -q -c 10 -i 0.1 -W 2 10.0.0.2 | FORMAT_PING], 
[0], [dnl
+10 packets transmitted, 10 received, 0% packet loss, time 0ms
+])
+
+AT_CHECK([ovs-appctl revalidator/wait])
+AT_CHECK([ovs-appctl revalidator/pause])
+
+get_pmd_arg() {
+    local core=$(ovs-appctl dpctl/dump-flows | head -n1 | grep "flow-dump from 
pmd" | rev | cut -d" " -f1)
+    if test -z $core; then
+        echo ""
+    else
+        echo "pmd=$core"
+    fi
+}
+
+pmd_id=$(get_pmd_arg)
+
+AT_CHECK([ovs-appctl dpctl/dump-flows --names | grep "ipv4" | strip_used | 
strip_stats |\
+          strip_duration | strip_dp_hash | strip_recirc |\
+          sed 's/,packet_type(ns=[[0-9]]*,id=[[0-9]]*),/,/;s/,eth(),/,/;' | 
sort], [0], [dnl
+recirc_id(<recirc>),in_port(ovs-p1),eth_type(0x0800),ipv4(dst=10.0.0.2,frag=no),
 packets:0, bytes:0, used:0.0s, actions:hash(l4(0)),recirc(<recirc>)
+recirc_id(<recirc>),in_port(ovs-p1),eth_type(0x0800),ipv4(frag=no), packets:0, 
bytes:0, used:0.0s, actions:ct(commit),recirc(<recirc>)
+recirc_id(<recirc>),in_port(ovs-p1),eth_type(0x0800),ipv4(frag=no), packets:0, 
bytes:0, used:0.0s, actions:ovs-p2
+recirc_id(<recirc>),in_port(ovs-p2),eth_type(0x0800),ipv4(dst=10.0.0.1,frag=no),
 packets:0, bytes:0, used:0.0s, actions:ct,recirc(<recirc>)
+recirc_id(<recirc>),in_port(ovs-p2),eth_type(0x0800),ipv4(frag=no), packets:0, 
bytes:0, used:0.0s, actions:ovs-p1
+])
+
+ufid=$(ovs-appctl dpctl/dump-flows -m 
filter='recirc_id(0),in_port(ovs-p1),ipv4' | parse_ufid)
+AT_CHECK([ovs-appctl ofproto/detrace $ufid $pmd_id | ofctl_strip], [0], [dnl
+cookie=0x12345678, n_packets=10, n_bytes=980, 
priority=100,ip,in_port=1,nw_dst=10.0.0.2,actions=resubmit(,1)
+table_id=1, n_packets=10, n_bytes=980, priority=200,ip,actions=group:1
+])
+
+ufid=$(ovs-appctl dpctl/dump-flows -m filter='in_port(ovs-p1),ipv4' | grep 
"ct(commit)" | parse_ufid)
+AT_CHECK([ovs-appctl ofproto/detrace $ufid $pmd_id | ofctl_strip], [0], [dnl
+group_id=1,type=select,selection_method=dp_hash,bucket=bucket_id:0,weight:100,actions=ct(commit,table=2)
+])
+
+ufid=$(ovs-appctl dpctl/dump-flows -m filter='in_port(ovs-p1),ipv4' | grep 
"actions:ovs-p2" | parse_ufid)
+AT_CHECK([ovs-appctl ofproto/detrace $ufid $pmd_id | ofctl_strip], [0], [dnl
+table_id=2, n_packets=10, n_bytes=980, ip,actions=output:2
+])
+
+ufid=$(ovs-appctl dpctl/dump-flows -m 
filter='recirc_id(0),in_port(ovs-p2),ipv4' | grep "ct," | parse_ufid)
+AT_CHECK([ovs-appctl ofproto/detrace $ufid $pmd_id | ofctl_strip], [0], [dnl
+cookie=0xabcedf, n_packets=10, n_bytes=980, 
priority=100,ip,in_port=2,nw_dst=10.0.0.1,actions=ct(table=3)
+])
+
+ufid=$(ovs-appctl dpctl/dump-flows -m filter='in_port(ovs-p2),ipv4' | grep 
"actions:ovs-p1" | parse_ufid)
+AT_CHECK([ovs-appctl ofproto/detrace $ufid $pmd_id | ofctl_strip], [0], [dnl
+table_id=3, n_packets=10, n_bytes=980, ip,actions=output:1
+])
+
+AT_CHECK([ovs-appctl revalidator/resume])
+
+OVS_TRAFFIC_VSWITCHD_STOP
+AT_CLEANUP
+
 AT_BANNER([MPLS])
 
 AT_SETUP([mpls - encap header dp-support])
-- 
2.47.0

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