On 5 Dec 2024, at 15:50, Ales Musil wrote:
> The system and netdev datapath have different default pmd_id, which
> resulted in empty output of ofproto/detrace with kernel datapath.
> Also indicate that the UFID or cache wasn't available.
>
> 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]>
The changes look good to me. One small comment from Ilya you missed, which we
can apply on commit.
Acked-by: Eelco Chaudron <[email protected]>
> ---
> v5: Rebase on top of current main.
> Adjust the empty cache message.
> Adjust hte number of packets in the test.
> Some other smaller test fixes.
> v4: Add back the group test.
> Use the OF update trick to force cache population.
> v3: Rebase on top of latest main.
> Make the output work with TC offload.
> Add message for missing UFID or cache.
> v2: Rebase on top of latest main.
> Address comments from Dumitru:
> - Fix typo in the commit title.
> - Simplify the mathod for pmd_id.
> - Use proper function to get dpif type.
> ---
> ofproto/ofproto-dpif-upcall.c | 15 +++++-
> tests/ofproto-dpif.at | 56 ---------------------
> tests/system-traffic.at | 92 +++++++++++++++++++++++++++++++++++
> 3 files changed, 105 insertions(+), 58 deletions(-)
>
> diff --git a/ofproto/ofproto-dpif-upcall.c b/ofproto/ofproto-dpif-upcall.c
> index bb0c55a33..a5677389d 100644
> --- a/ofproto/ofproto-dpif-upcall.c
> +++ b/ofproto/ofproto-dpif-upcall.c
> @@ -3339,8 +3339,9 @@ 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) {
> @@ -3349,7 +3350,7 @@ 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. "
> @@ -3362,8 +3363,15 @@ upcall_unixctl_ofproto_detrace(struct unixctl_conn
> *conn, int argc,
> struct udpif *udpif;
>
> LIST_FOR_EACH (udpif, list_node, &all_udpifs) {
> + if (!pmd_str) {
> + const char *type = dpif_normalize_type(dpif_type(udpif->dpif));
cr/lf as requested by Ilya.
> + pmd_id = !strcmp(type, "system") ? PMD_ID_NULL : NON_PMD_CORE_ID;
> + }
> +
> struct udpif_key *ukey = ukey_lookup(udpif, &ufid, pmd_id);
> if (!ukey) {
> + ds_put_format(&ds, "UFID was not found for %s\n",
> + dpif_name(udpif->dpif));
> continue;
> }
>
> @@ -3373,6 +3381,9 @@ upcall_unixctl_ofproto_detrace(struct unixctl_conn
> *conn, int argc,
> if ((ukey->state == UKEY_VISIBLE || ukey->state == UKEY_OPERATIONAL)
> && ukey->xcache) {
> xlate_xcache_format(&ds, ukey->xcache);
> + } else {
> + ds_put_format(&ds, "Cache was not found for %s\n",
> + dpif_name(udpif->dpif));
> }
> ovs_mutex_unlock(&ukey->mutex);
> }
> 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 a59994ba4..d681f2e87 100644
> --- a/tests/system-traffic.at
> +++ b/tests/system-traffic.at
> @@ -2525,6 +2525,98 @@
> 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])
> +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 3 -i 0.1 -W 2 10.0.0.2 | FORMAT_PING],
> [0], [dnl
> +3 packets transmitted, 3 received, 0% packet loss, time 0ms
> +])
> +
> +AT_CHECK([ovs-appctl revalidator/wait])
> +# Add an unrelated OF change to populate the xcache during the next reval
> run.
> +AT_CHECK([ovs-ofctl add-flow br0 table=4,ip,action=drop])
> +AT_CHECK([ovs-appctl revalidator/wait])
> +
> +AT_CHECK([ovs-appctl revalidator/pause])
> +
> +AT_CHECK([ovs-appctl dpctl/dump-flows], [0], [stdout])
> +
> +core=$(head -1 stdout | grep "flow-dump from pmd" | grep -o
> "[[-]]\?[[0-9]]\+$")
> +if test -z $core; then
> + pmd_id=""
> +else
> + pmd_id="pmd=$core"
> +fi
> +
> +AT_CHECK([ovs-appctl dpctl/dump-flows --names | grep "ipv4" | strip_used |
> strip_stats | \
> + strip_duration | strip_dp_hash | strip_recirc | sed
> 's/:never/:0.0s/' | \
> + strip_ptype | strip_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 $pmd_id | ofctl_strip | \
> + sed -E 's/n_bytes=2(66|80),/n_bytes=294,/'], [0], [dnl
> +cookie=0x12345678, n_packets=3, n_bytes=294,
> priority=100,ip,in_port=1,nw_dst=10.0.0.2,actions=resubmit(,1)
> +table_id=1, n_packets=3, n_bytes=294, priority=200,ip,actions=group:1
> +])
> +
> +ufid=$(ovs-appctl dpctl/dump-flows -m filter='in_port(ovs-p1),ipv4' | grep
> "ct(commit)" | parse_ufid)
> +AT_CHECK([ovs-appctl ofproto/detrace $ufid $pmd_id | ofctl_strip | \
> + sed -E 's/n_bytes=2(66|80),/n_bytes=294,/'], [0], [dnl
> +group_id=1,type=select,selection_method=dp_hash,bucket=bucket_id:0,weight:100,actions=ct(commit,table=2)
> +])
> +
> +ufid=$(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 $pmd_id | ofctl_strip | \
> + sed -E 's/n_bytes=2(66|80),/n_bytes=294,/'], [0], [dnl
> +table_id=2, n_packets=3, n_bytes=294, ip,actions=output:2
> +])
> +
> +ufid=$(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 $pmd_id | ofctl_strip | \
> + sed -E 's/n_bytes=2(66|80),/n_bytes=294,/'], [0], [dnl
> +cookie=0xabcedf, n_packets=3, n_bytes=294,
> priority=100,ip,in_port=2,nw_dst=10.0.0.1,actions=ct(table=3)
> +])
> +
> +ufid=$(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 | \
> + sed -E 's/n_bytes=2(66|80),/n_bytes=294,/'], [0], [dnl
> +table_id=3, n_packets=3, n_bytes=294, 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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