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The data poisoning is used in conjunction with memory, I/O, and configuration transactions that have a data payload.
Data poisoning is done at the transaction layer of a device.
For corrupted data, the packet is sent to recipient with “EP” bit set.
PCIe is a third generation high performance I/O bus used to interconnect peripheral devices in applications such as computing and communication platforms.
For example when requester performs a Memory write transaction, the data (to be written) fetched from local memory, can have parity error.
In Such case requester send the memory write transaction with setting “EP” field in packet header.
The below errors are checked at DL layer of requester, switch and completer i.e.
these errors are checked at requester, switch and completer.