Datasheet

Intel
®
82599 10 GbE Controller—Errata
50
60 IPv4 Checksum Error Might Be Reported for
Multicast Frames Over 12 KB
Problem:
IPE (IPv4 Checksum Error) might rarely be set in the Rx descriptor of multicast frames over 12 KB even
though their checksum is valid.
Implication:
An IPE (IPv4 Checksum Error) error can incorrectly be reported by the 82599.
Workaround:
To avoid the erratum condition, limit the size of jumbo frames to less than or equal to 12 KB.
If using jumbo frames over 12 KB, software should re-calculate the IPV4 Header Checksum if
RDESC.IPE is set.
The Intel Windows* and Linux* drivers limit the size of jumbo frames to less than or equal to 9 KB and
are not exposed to this erratum.
Status: B0=Yes; NoFix
61 RXMEMWRAP Register Content Is Inaccurate
Problem:
RXMEMWRAP register (0x03190) content is inaccurate:
• RX Buffer Wrap Around Counter values could be inaccurate.
• RX Buffer Empty bits are not reliable in the presence of FCoE or TCP-no-payload packets.
Implication:
Incorrect status read.
Workaround:
Use the RXUSED register for an indication as to whether or not the Rx buffer is empty.
Status: B0=Yes; NoFix