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Gen 1 hardware implements revision 1 of the PGP protocol. PGP firmware for Petacache RCEs and slices returns decimal 206 as the PGP firmware version 1.
Number of instances per RCE
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Bit | Name | Purpose |
|---|---|---|
31-24 | vc3RemBuffFull | Each of these single-bit flags shows the status of the remote PGP's receive buffer for a virtual channel. |
| vc3RemBuffAFull | Each such buffer may be asserting "full" and/or "almost full". |
| vc2RemBuffFull |
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| vc2RemBuffAFull |
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| vc1RemBuffFull |
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| vc1RemBuffAFull |
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| vc0RemBuffFull |
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| vc0RemBuffAFull |
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23-22 | pibLock | The state of the MGT's phase-locked loops (PLLs); the high-order bit is for the transmit (Tx) PLL and the other is for the receive (Rx) PLL. A value of 1 means that the PLL is locked. |
21 | mgtInverted | A value of 1 means that the MGT is inverting the signals it receives and transmits, something that happens automatically if needed to communicate with the remote PGP. |
20 | pibFail | A value of 1 means that the link state is ST_FAIL (see below). |
19 | pibLinkReady | A value of 1 means that the link state is ST_EN or ST_SKP (see below). |
18-16 | pibState | The state of the link to the remote PGP. See the table below. |
15-8 | remoteVersion | The version number of the remote PGP core. This changes value when a valid version sequence is received when this core is not transmitting its own version numberis reliable only if the link is ready. |
7-0 | localVersion | The version number of this PGP core. |
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Bits | Counter name | What it counts |
|---|---|---|
31-28 | cntFlowError | The PIB FIFO transitions condition changes from not-full to full. |
27-24 | cntStatError | The PEB's internal 16-element completion-status FIFO couldn't accept a new value. |
23-20 | cntShiftError | A firmware error where data is presented to the receiver when it isn't ready for it. |
19-16 | cntNack | The link was up and we received the first of a run of NACKs. |
15-12 | cntLinkDown | The link was up and went down. |
11-8 | cntLinkError | The link was up and the first of a run of link errors occurred. |
7-4 | cntCellError | The link was up and the first of a run of cell reception errors occurred. |
3-0 | cntPllLock | The link PLL went from unlocked to locked. |
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