WG82574IT S LBAB Intel, WG82574IT S LBAB Datasheet - Page 126
WG82574IT S LBAB
Manufacturer Part Number
WG82574IT S LBAB
Description
Manufacturer
Intel
Datasheet
1.WG82574IT_S_LBAB.pdf
(472 pages)
Specifications of WG82574IT S LBAB
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
64
Lead Free Status / RoHS Status
Compliant
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Note:
7.1.4.8
126
ACK (bit 15): The ACK bit indicates that the received packet was an ACK packet with
or without TCP payload depending on the RFCTL.ACKD_DIS bit.
PKTTYPE (bit 19:16): The PKTTYPE field defines the type of the packet that was
detected by the 82574. The 82574 tries to find the most complex match until the most
common one as shown in the following packet type table:
If the device is not configured to provide any offload that requires packet parsing, the
packet type field is set to 0b regardless of the actual packet type.
Extended Errors (12-Bit, Offset 8.20)
RXE (bit 11) - Rx data error - Same as legacy descriptor.
IPE (bit 10) - IPv4 checksum error - Same as legacy descriptor.
TCPE (bit 9) - TCP/UDP checksum error - Same as legacy descriptor.
CXE (bit 8) - Carrier extension error - Same as legacy descriptor.
SEQ (bit 6) - Sequence error - Same as legacy descriptor.
SE (bit 5) - Symbol error - Same as legacy descriptor.
0x0
0x1
0x2
0x3
0x4
0x5
0x6
0x7
0x8
0x9
0xA
0xB
0xC
0xD
0xE
RXE
11
Packet Type
— Payload does not mean raw data but can also be unsupported header.
— If there is an NFS/iSCSI header in the packets it can be seen in the packet type
field.
IPE
10
TCPE
9
MAC, (VLAN/SNAP) payload
MAC, (VLAN/SNAP) IPv4, payload
MAC, (VLAN/SNAP) IPv4, TCP/UDP, payload
MAC (VLAN/SNAP), IPv4, IPv6, payload
MAC (VLAN/SNAP), IPv4, IPv6, TCP/UDP, payload
MAC (VLAN/SNAP), IPv6, payload
MAC (VLAN/SNAP), IPv6,TCP/UDP, payload
MAC, (VLAN/SNAP), IPv4, TCP, ISCSI, payload
MAC, (VLAN/SNAP), IPv4, TCP/UDP, NFS, payload
MAC (VLAN/SNAP), IPv4, IPv6,TCP, ISCSI, payload
MAC (VLAN/SNAP), IPv4, IPv6,TCP/UDP,NFS, payload
MAC (VLAN/SNAP), IPv6,TCP, ISCSI, payload
MAC (VLAN/SNAP), IPv6,TCP/UDP, NFS, payload
Reserved
PTP packet (TimeSync according to Ethertype)
CXE
8
Rsvd
7
SEQ
6
SE
5
Description
82574 GbE Controller—Inline Functions
CE
4
3
Rsvd
2
1
Rsvd
0
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