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82575EB Gigabit Ethernet Controller — RSS Random Key Register - RSSRK (05C80h + 4*n
[n=0..9]; R/W)
Intel
®
82575EB Gigabit Ethernet Controller 324632-003
Software Developer’s Manual and EEPROM Guide Revision: 2.1
384 January 2011
14.5.7 RSS Random Key Register - RSSRK (05C80h +
4*n [n=0..9]; R/W)
The RSS Random Key register stores a 40 byte key used by the RSS hash function.
. . .
14.5.8 VMDq Control - VMD_CTRL (0581Ch; R/W)
DW 31 24 23 16 15 8 7 0
0 K[3] K[2] K[1] K[0]
1 . . .
DW 31 24 23 16 15 8 7 0
6
7 K[39} ... ... K[36]
Field Bit(s) Initial Value Description
K0 7:0 00h Byte n*4 of the RSS random key (n=0,1,…9).
K1 15:8 00h Byte n*4+1 of the RSS random key (n=0,1,…9).
K2 23:16 00h Byte n*4+2 of the RSS random key (n=0,1,…9).
K3 31:24 00h Byte n*4+3 of the RSS random key (n=0,1,…9).
Field Bit(s)
Initial
Value
Description
Default VMDq
Queue #0
1:0 00b Determines the target queue for received packets that cannot be classified by the
VMDq procedures (for example, broadcast packets) or packets allocated to pool 0
that cannot be decoded by RSS. Operates differently in each mode:
Association through MAC address - defines default queue number.
Association through MAC address + RSS - Defines the default queue for packets
allocated to pool 0.
Reserved 6:2 0h Reserved
Default VMDq
Queue #1
8:7 00b Determines the target queue for received packets that cannot be classified by the
VMDq procedures (for example, broadcast packets) or packets allocated to pool 1
that cannot be decoded by RSS. Operates differently in each mode:
Association through MAC address - reserved.
Association through MAC address + RSS - defines the default queue for packets
allocated to pool 1.
Reserved 30:9 0h Reserved
Default Pool 31 0b Determines the target pool for received packets that cannot be classified by the
VMDq procedures (for example, broadcast packets). Operates differently in each
mode:
Association through MAC address - reserved
Association through MAC address + RSS - defines the default pool for packets that
cannot be allocated to any pool.