Data Sheet

Ethernet Controller I210 —Inline Functions
342
Figure 7-19 shows the format of the PCIe message for DCA.
The DCA preferences field has the following formats.
7.7.2 TLP Process Hints (TPH)
The I210 supports the TPH capability defined in the PCI Express specification (See Section 9.5). It does
not support Extended TPH requests.
Figure 7-19. PCIe Message Format for DCA
Table 7-59. Legacy DCA Systems
Bits Name Description
0DCA indication
0b: DCA disabled
1b: DCA enabled
3:1 DCA Target ID
The DCA Target ID specifies the target cache for the
data.
7:4 Reserved Reserved
Table 7-60. DCA Systems
Bits Name Description
7:0 DCA target ID
0000.0000b: DCA is disabled
Other: Target Core ID derived from APIC ID.
TLP digest
Length specific data
Length specific data
Address [32:2] R
Address [63:32]
Requester ID DCA preferences Last DW BE First DW BE
R
Fmt=
11
Type=00000b R TC Rsv
T
D
E
P
Attr R Length
+0
6543210765432107654321076543210
+1 +2 +3