This series of patches makes the ofproto/trace show the megaflow fields
for each resubmit.
An exmaple is given below:
Setup:
ovs-vsctl add-br br0
ovs-vsctl add-port br0 p1 -- set Interface p1 ofport_request=1
ovs-ofctl add-flow br0 "table=0, dl_src=01:00:00:00:00:00/01:00:00:00:00:00,
actions=drop"
ovs-ofctl add-flow br0 "table=0, dl_dst=01:80:c2:00:00:00/ff:ff:ff:ff:ff:f0,
actions=drop"
ovs-ofctl add-flow br0 "table=0, priority=0, actions=resubmit(,1)"
ovs-ofctl add-flow br0 "table=1, priority=99, in_port=1, vlan_tci=0,
actions=mod_vlan_vid:10, resubmit(,2)"
Test:
ovs-appctl ofproto/trace br0 in_port=1
Output:
Flow:
metadata=0,in_port=1,vlan_tci=0x0000,dl_src=00:00:00:00:00:00,dl_dst=00:00:00:00:00:00,dl_type=0x0000
Rule: table=0 cookie=0 priority=0
OpenFlow actions=resubmit(,1)
Resubmitted flow: unchanged
Resubmitted regs: reg0=0x0 reg1=0x0 reg2=0x0 reg3=0x0 reg4=0x0
reg5=0x0 reg6=0x0 reg7=0x0
Resubmitted odp: drop
Resubmitted megaflow:
skb_priority=0,in_port=1,vlan_tci=0x0000,dl_src=00:00:00:00:00:00/01:00:00:00:00:00,dl_dst=00:00:00:00:00:00/ff:ff:ff:ff:ff:f0,dl_type=0x0000,nw_frag=no
Rule: table=1 cookie=0 priority=99,in_port=1,vlan_tci=0x0000
OpenFlow actions=mod_vlan_vid:10,resubmit(,2)
Resubmitted flow:
metadata=0,in_port=1,dl_vlan=10,dl_vlan_pcp=0,dl_src=00:00:00:00:00:00,dl_dst=00:00:00:00:00:00,dl_type=0x0000
Resubmitted regs: reg0=0x0 reg1=0x0 reg2=0x0 reg3=0x0
reg4=0x0 reg5=0x0 reg6=0x0 reg7=0x0
Resubmitted odp: drop
Resubmitted megaflow:
skb_priority=0,in_port=1,dl_vlan=10,dl_vlan_pcp=0,dl_src=00:00:00:00:00:00/01:00:00:00:00:00,dl_dst=00:00:00:00:00:00/ff:ff:ff:ff:ff:f0,dl_type=0x0000,nw_frag=no
No match
Final flow: unchanged
Megaflow:
skb_priority=0,in_port=1,dl_vlan=10,dl_vlan_pcp=0,dl_src=00:00:00:00:00:00/01:00:00:00:00:00,dl_dst=00:00:00:00:00:00/ff:ff:ff:ff:ff:f0,dl_type=0x0000,nw_frag=no
Datapath actions: drop
Description:
- The original flow is displayed first on top
- Resubmitted flow and final flow are the modified flow during xlate_actions()
- Resubmitted megaflow shows how the megaflow changes during xlate_actions()
Alex Wang (4):
ofproto/trace: Use final flow to compute "Relevant fields".
ofproto/trace: Remove the unused variables.
ofproto/trace: Change output field name.
ofproto/trace: Show megaflow fields in each resubmit.
ofproto/ofproto-dpif-upcall.c | 5 +++--
ofproto/ofproto-dpif-xlate.c | 10 ++++++++--
ofproto/ofproto-dpif-xlate.h | 7 ++++++-
ofproto/ofproto-dpif.c | 36 ++++++++++++++++++++----------------
4 files changed, 37 insertions(+), 21 deletions(-)
--
1.7.9.5
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