IDT PCI Express 89HPES32NT24xG2, User Manual, Page: 284 / 744

IDT Non-Transparent Switch Operation
PES32NT24xG2 User Manual 14 - 36 January 30, 2013
Notes
Figure 14.16 Poisoned TLP Error Propagation Example
Table 14.9 shows the error logging for each function in the TLP’s logical path.
Function Error Logging
Downstream PCI-to-PCI Bridge
(Partition 1) Refer to row corresponding to ‘Poisoned TLP
received’ error in Table 10.9.
Note that this port is considered the ultimate
receiver in partition 1, as it is the port that
receives the TLP on the link and the TLP targets
the NT function in partition 1’s upstream port
(see section Transaction Layer Errors on page
10-13).
Upstream PCI-to-PCI Bridge (Partition 1) Refer to row corresponding to ‘Poisoned TLP
received’ error in Table 10.9.
Note that the bridge only logs parity error recep-
tion in the SECSTS register as it did not receive
the TLP directly from the link.
NT Endpoint (Partition 1) Refer to row corresponding to ‘Poisoned TLP
received’ in Table 14.4.
Note that the NT function only logs parity error
reception in the PCISTS register as it did not
receive the TLP directly from the link.
Table 14.9 Error Logging at Each Function for Poisoned TLP Example (Part 1 of 2)
Partition 1 – Virtual PCI Bus
P2P
Bridge
Upstream
Port
P2P
Bridge
P2P
Bridge
Upstream
Port
Partition 2 – Virtual PCI Bus
P2P
Bridge
P2P
Bridge
P2P
Bridge
NT
Endpoint
NT
Endpoint
Downstream Ports
Non Transparent
Interconnect
Poisoned TLP’s
Logical Path