Comments (2)
Debugging SR-IOV devices have always been challenging, and are working on VFd enhancements to allow troubleshooting easier.
from vfd.
It's not VFd, but a function of the DPDK driver which is bound to the VF.
Now that mirroring has been added to VFd, it is possible to turn on mirroring for a VF (inbound packets, outbound packets, or both) with the mirrored packets directed to another VF on the same PF. If a guest is started and attached to the VF receiving the mirrored packets, tcpdump (or other sniffer application) can be used in the guest to see the packets which were received and/or sent to the VF in question.
It should be noted that packets which are received, but cannot be delivered to the VF (incorrect VLAN or MAC) will not be mirrored, and only packets that are not dropped by the NIC on transmit (spoofed packets) are mirrored.
There is more detail in the various documents on the wiki with regard to debugging and specifically that cover how to set up and mirror traffic.
from vfd.
Related Issues (20)
- VF TC qshare percentage HOT 1
- VF configuration not reset upon VFD termination
- Add VF with multiple mac addresses is failing in nic_agnostic branch HOT 1
- wrong qshare array calculation HOT 1
- MAC list broken with proper handling of set mac-vlan callback HOT 4
- Check configuration name when deleting a configuration HOT 2
- Potential configuration file race condition HOT 2
- Delete of a configuration without fully qualified name fails HOT 1
- Don't reject duplicate add if parms are identical
- Seg fault when VF MAC list has empty string HOT 1
- Duplicate PF/VF in different config files cause guest issues HOT 2
- VFd attempts to set a nil MAC into the PF/VF whitelist HOT 1
- VFd core dumps when a VF config has invalid pciid HOT 1
- Looks like there's missing brackets here... HOT 2
- missing break in vfd_bnxt.c? HOT 1
- Hole left in MAC list for VF HOT 1
- Error while configuring Mirroring HOT 7
- No response if unknown request received from iplex HOT 1
- VFd init script should select a CPU for VFd based on config
- VF bound to Kernel driver HOT 3
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from vfd.