Re: [dpdk-dev] [PATCH 0/7] net/mlx5: support for flow action on VLAN header

[Hideyuki Yamashita <yamashita.hideyuki@ntt-tx.co.jp>]

Hello Slava,

As I reported to you, creating flow was successful with Connect-X5.
However when I sent packets to the NIC from outer side of
the host, I have problem.


[Case 1]
Packet distribution on multi-queue based on dst MAC address.

NIC config:
04:00.0 Mellanox Connect-X5
0.5.00.0 Intel XXV710

testpmd startup param:
sudo ./testpmd -c 1ffff -n 4 --socket-mem=1024,1024 --log-level=10 -w 04:00.0,dv_flow_en=1  -w 05:00.0    -- -i --rxq=16 --txq=16 --disable-rss --pkt-filter-mode=perfect

flow command:
testpmd> flow create 0 ingress pattern eth dst is 11:22:33:44:55:66 / end actions queue index 1 / end
Flow rule #0 created
testpmd> flow create 1 ingress pattern eth dst is 11:22:33:44:55:66 type mask 0xffff / end actions queue index 1 / end
Flow rule #0 created

Packet reception:(no VLAN tag)
port 0/queue 0: received 1 packets
  src=CC:CC:CC:CC:CC:CC - dst=11:22:33:44:55:66 - type=0x0800 - length=60 - nb_segs=1 - hw ptype: L2_ETHER L3_IPV4_EXT_UNKNOWN L4_NONFRAG  - sw ptype: L2_ETHER L3_IPV4  - l2_len=14 - l3_len=20 - Receive queue=0x0
  ol_flags: PKT_RX_L4_CKSUM_UNKNOWN PKT_RX_IP_CKSUM_GOOD PKT_RX_OUTER_L4_CKSUM_UNKNOWN
port 1/queue 0: sent 1 packets
  src=CC:CC:CC:CC:CC:CC - dst=11:22:33:44:55:66 - type=0x0800 - length=60 - nb_segs=1 - hw ptype: L2_ETHER L3_IPV4_EXT_UNKNOWN L4_NONFRAG  - sw ptype: L2_ETHER L3_IPV4  - l2_len=14 - l3_len=20 - Send queue=0x0
  ol_flags: PKT_RX_L4_CKSUM_UNKNOWN PKT_RX_IP_CKSUM_GOOD PKT_RX_OUTER_L4_CKSUM_UNKNOWN

port 1/queue 1: received 1 packets
  src=CC:CC:CC:CC:CC:CC - dst=11:22:33:44:55:66 - type=0x0800 - length=60 - nb_segs=1 - hw ptype: L2_ETHER L3_IPV4_EXT_UNKNOWN L4_ICMP  - sw ptype: L2_ETHER L3_IPV4  - l2_len=14 - l3_len=20 - Receive queue=0x1
  ol_flags: PKT_RX_L4_CKSUM_GOOD PKT_RX_IP_CKSUM_GOOD PKT_RX_OUTER_L4_CKSUM_UNKNOWN
port 0/queue 1: sent 1 packets
  src=CC:CC:CC:CC:CC:CC - dst=11:22:33:44:55:66 - type=0x0800 - length=60 - nb_segs=1 - hw ptype: L2_ETHER L3_IPV4_EXT_UNKNOWN L4_ICMP  - sw ptype: L2_ETHER L3_IPV4  - l2_len=14 - l3_len=20 - Send queue=0x1
  ol_flags: PKT_RX_L4_CKSUM_GOOD PKT_RX_IP_CKSUM_GOOD PKT_RX_OUTER_L4_CKSUM_UNKNOWN

Result:
Matched packet queued to queue=0 port=0. Not queue=1, port=0.

Expectation:
When receiving packet which has dst MAC 11:22:33:44:55:66 should be
received on queue=1 port=0.

Question:
Why matching packet is NOT enqueued into queue=1 on port=0?


[Case 2]
Packet distribution on multi-queue based on VLAN tag

testpmd startup param:
sudo ./testpmd -c 1ffff -n 4 --socket-mem=1024,1024 --log-level=10 -w 04:00.0,dv_flow_en=1  -w 05:00.0    -- -i --rxq=16 --txq=16 --disable-rss --pkt-filter-mode=perfect

flow command:
flow create 0 ingress group 1 pattern eth / vlan vid is 100 / end actions queue index 1 / of_pop_vlan / end
flow create 0 ingress group 0 pattern eth / end actions jump group 1 / end

Packet Reception: (VLAN100)
port 0/queue 1: received 1 packets
  src=CC:CC:CC:CC:CC:CC - dst=11:22:33:44:55:66 - type=0x0800 - length=56 - nb_segs=1 - hw ptype: L2_ETHER L3_IPV4_EXT_UNKNOWN L4_NONFRAG  - sw ptype: L2_ETHER L3_IPV4  - l2_len=14 - l3_len=20 - Receive queue=0x1
  ol_flags: PKT_RX_L4_CKSUM_UNKNOWN PKT_RX_IP_CKSUM_GOOD PKT_RX_OUTER_L4_CKSUM_UNKNOWN
port 1/queue 1: sent 1 packets
  src=CC:CC:CC:CC:CC:CC - dst=11:22:33:44:55:66 - type=0x0800 - length=56 - nb_segs=1 - hw ptype: L2_ETHER L3_IPV4_EXT_UNKNOWN L4_NONFRAG  - sw ptype: L2_ETHER L3_IPV4  - l2_len=14 - l3_len=20 - Send queue=0x1
  ol_flags: PKT_RX_L4_CKSUM_UNKNOWN PKT_RX_IP_CKSUM_GOOD PKT_RX_OUTER_L4_CKSUM_UNKNOWN

Result:
Matched packetd queued to queue=1, port=0
Other packet(VLAN101 packet) discarded.

Expectation:
Matched packet queued to queue =1, port=0
Non Matched packet queued to queue=0, port=0

Question:
Is above behavior collect?
What is the default behavior of unmatchedd packets (queue to queue=0 or
discard packet)

BR,
Hideyuki Yamashita
NTT TechnoCross