Datasheet

Intel
®
82599 10 GbE Controller—Errata
26
8 Incorrect Behavior in the Switch Security Violation
Packet Count (SSVPC) Statistic Register
Problem:
During VM Migration (or other VFLR scenarios), VM-to-VM packets that should be forwarded to a VM
that is currently in migration might be dropped; they may not forwarded to the VM internally and not
forwarded to the network.
These packets are counted both as bad packets in the SSVPC counter and also as good packets in the
DMA-TX good-packet counter.
Implication:
The statistic is not reliable for VFLR cases.
Workaround:
None.
Status: B0=Yes; NoFix
9 FCoE: To Read DMA-Rx FCoE context, CSRs Need to
Add a Dummy Write
Problem:
There is a need to add a dummy write before the read of an FCoE context CSRs (FCDMARW) to avoid
context corruption.
Implication:
No impact.
Workaround:
Write FCDMARW twice while having the required FCoE read index valid and '0’ in the RE and WE bits.
Status: B0=Yes; NoFix
10 In 100M Link Mode, CSR Access to DMA-Rx Might
Reach Internal Timeout
Problem:
In 100 Mb/s link mode, internal clocks are slower, and access of an internal register can lead to
timeout.
Implication:
An unknown value will be returned on PCIe interface.