I can't find MSI-X Upper adress.

Altera_Forum · ‎07-22-2010

I can't find upper address for MSI-X.

In PCI specification:

Message Control  Next Pointer  Capability ID   –  CP+00h
Message Upper Address - CP+04h
Table Offset - CP+08h

In PCI Express compiler guide:

Table 4–14 describes the MSI-X capability structure.
0x68 Message Control  Next Cap Ptr  Capability ID
0x6C MSI-X Table Offset BIR
0x70 Pending Bit Array (PBA) Offset BIR

Where the “Message Upper Address

”? I can't find them.

Can I use

0x058 Message Upper Address

From Table 4–13. MSI Capability Structure?

I'm use Arria GXII with Hard-IP.

Altera_Forum · ‎07-26-2010

You write “In PCI specification” but you don’t tell us which version. Most probably, it’s not the official one.

There is a free description of msi-x (http://www.pcisig.com/specifications/conventional/msi-x_ecn.pdf) with the proper (== final!) table structure details.

Altera_Forum · ‎07-26-2010

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You write “In PCI specification” but you don’t tell us which version. Most probably, it’s not the official one.

There is a free description of msi-x (http://www.pcisig.com/specifications/conventional/msi-x_ecn.pdf) with the proper (== final!) table structure details.

--- Quote End ---

The table is not two DWORD!!!

Altera_Forum · ‎07-26-2010

Right, the table is 4 (!!) DWORD: 1 for data, 2 for address and 1 for control.