82598EB Datasheet, PDF (344/596 Pages) Intel Corporation – Intel® 82598EB 10 Gigabit Ethernet Controller Datasheet

Intel^® 82598EB 10 GbE Controller - Register Descriptions
If the operating system provides an indirection table whose size is smaller than 128 bytes, software
should replicate the operating system-provided indirection table to span the entire 128 bytes of the
hardware indirection table.
4.4.3.6.17 RSS Random Key Register – RSSRK (0x05C80-0x05CA4; RW)
The RSS Random Key register stores a 40-byte key used by the RSS hash function.
31
….24
23
16
15
8
7
0
K[3]
K[2]
K[1]
K[0]
…
…
... ... ...
K[39]
…
…
K[36]
Field
K0
K1
K2
K3
Dword/
Bit(s)
7:0
15:8
23:16
31:24
Initial
Value
0x0
0x0
0x0
0x0
Description
Byte 0 of the RSS random key.
Byte 1 of the RSS random key.
Byte 2 of the RSS random key.
Byte 3 of the RSS random key.
4.4.3.7 Transmit Register Descriptions
4.4.3.7.1 Transmit Descriptor Base Address Low – TDBAL (0x06000 +
n*0x40[n=0..31]; RW)
Field
0
TDBAL
Bit(s)
Initial
Value
Description
6:0
0x0
Ignored on writes. Returns 0x0 on reads.
31:7
X
Transmit Descriptor Base Address Low
This register contains the lower bits of the 64-bit descriptor base address. The lower seven bits are
ignored. The transmit descriptor base address must point to a 16-byte aligned block of data.
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