WG82574IT S LBAC Intel, WG82574IT S LBAC Datasheet - Page 151
WG82574IT S LBAC
Manufacturer Part Number
WG82574IT S LBAC
Description
CONTROLLER, ENET, INTEL 82574IT, 64PQFN
Manufacturer
Intel
Datasheet
1.WG82574IT_S_LBAC.pdf
(490 pages)
Specifications of WG82574IT S LBAC
Ethernet Type
IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Supply Voltage Range
3V To 3.6V
Operating Temperature Range
-40°C To +85°C
Digital Ic Case Style
QFN
No. Of Pins
64
Package / Case
QFN
Interface Type
I2C, JTAG, PCI, SPI
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Inline Functions—82574 GbE Controller
Figure 33.
7.1.11.1
RSS Block Diagram
RSS Hash Function
The 82574L’s hash function follows Microsoft’s* definition. A single hash function is
defined with five variations for the following cases:
• TcpIPv4 - The 82574L parses the packet to identify an IPv4 packet containing a TCP
• IPv4 - The 82574L parses the packet to identify an IPv4 packet. If the packet is not
• TcpIPv6 - The 82574L parses the packet to identify an IPv6 packet containing a TCP
segment per the following criteria. If the packet is not an IPv4 packet containing a
TCP segment, receive-side-scaling is not done for the packet.
an IPv4 packet, receive-side-scaling is not done for the packet.
segment per the following criteria. If the packet is not an IPv6 packet containing a
TCP segment, receive-side-scaling is not done for the packet. Extension headers
should be parsed for a Home-Address-Option field (for source address) or the
Routing-Header-Type-2 field (for destination address).
MRQ disables or (RSS
RSS Hash
& not decodeable)
Parsed
receive
32
packet
descriptor
Packet
LS
LS
Physical
queue #
7
0
1 bit
1
Redirection
(128 x 8)
Table
151
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