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Errata—Intel

82599 10 GbE Controller

5 Flow Director Statistics Inaccuracy

Problem:

FDIRMATCH should count the number of packets that matched any flow director filter.

FDIRMISS should count the number of packets that missed matching any flow director filter.

Implication:

The counters cannot be used for exact statistics. Counters should be used as an approximate indication

on miss/match of filters.

Workaround:

None.

Status: B0=Yes; NoFix

6 No Length Error on VLAN Packets with Bad Type/

Length Field

Problem:

Device will not assert length error for VLAN packets that have a bad type/length field in the MAC

header.

Implication:

No impact on system level performance. The packets are posted to the host as any other packets.

Workaround:

None.

Status: B0=Yes; NoFix

7 GPRC and GORCL/H Also Count Missed Packets

Problem:

GPRC (Good Packets Received Count) and GORCL/H (Good Octets Received Count) count missed

packets and missed packets bytes; this is not consistent with previous products.

Implication:

None.

Workaround:

Statistics are available indirectly for these registers. This workaround is included in Intel drivers.

• For GPRC — Subtract MPC (Missed Packet Count) from GPRC. Alternatively, use QPRC.

• For GORCL/H — use QBRCL/H (Quad Bytes Received).

Status: B0=Yes; NoFix

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Intel RS3SC008 Fiche technique Page 25