Visible to Intel only — GUID: nik1410905627173
Ixiasoft
Visible to Intel only — GUID: nik1410905627173
Ixiasoft
5.4. MSI-X Capability Structure
Bits |
Register Description |
Default Value |
Access |
---|---|---|---|
[31] |
MSI-X Enable. When set, enables MSI-X interrupt generation. |
0 | RW |
[30] |
MSI-X Function Mask. When set, masks all MSI-X interrupts from this function. |
0 | RW |
[29:27] |
Reserved. |
0 | RO |
[26:16 ] |
Size of the MSI-X Table. The value in this field is 1 less than the size of the table set up for this function. The maximum value is 0x7FF, or 4096 interrupt vectors. |
Set in Platform Designer | RO |
[15:8] |
Next Capability Pointer. Points to Power Management Capability. |
0x80 | RO |
[7:0] |
Capability ID. PCI-SIG assigns this ID. |
0x11 | RO |
Bits |
Register Description |
Default Value |
Access |
---|---|---|---|
[2:0] |
MSI-X Table BAR Indicator. Specifies the BAR number whose address range contains the MSI-X Table.
|
Set in Platform Designer |
RO |
[31:3] |
Specifies the memory address offset for the MSI-X Table relative to the BAR base address value of the BAR number specified in MSI-X Table BAR Indicator,[2:0] above. The address is extended by appending 3 zeros to create quad-word alignment. |
Set in Platform Designer |
RO |
Bits |
Register Description |
Default Value |
Access |
---|---|---|---|
[2:0] |
MSI-X Pending Bit Array BAR Indicator. Specifies the BAR number whose address range contains the Pending Bit Array (PBA) table for this function. The following encodings are defined:
|
Set in Platform Designer |
RO |
[31:3] |
Specifies the memory address offset for the PBA relative to the specified base address value of the BAR number specified in MSI-X Pending Bit Array BAR Indicator, at [2:0] above. The address is extended by appending 3 zeros to create quad-word alignment. |
Set in Platform Designer |
RO |