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Altera_Forum
Honored Contributor
Honored ContributorI can't find MSI-X Upper adress.
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
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
3 Replies
Altera_ForumYou 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--- Quote Start --- 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
Right, the table is 4 (!!) DWORD: 1 for data, 2 for address and 1 for control.
