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    SubjectMSI changes in .28
    Date
    On Tuesday 02 December 2008, Linus Torvalds wrote:
    > So, it looks like you have MSI enabled in -rc6, and not in -rc3.

    I've just compared dmesg for my *desktop* and there I see the following
    between 2.6.28-rc6 and current 2.6.28-rc7:

    pcieport-driver 0000:00:1c.0: setting latency timer to 64
    pcieport-driver 0000:00:1c.0: found MSI capability
    -pcieport-driver 0000:00:1c.0: irq 47 for MSI/MSI-X
    +pcieport-driver 0000:00:1c.0: irq 511 for MSI/MSI-X
    pci_express 0000:00:1c.0:pcie00: allocate port service
    pci_express 0000:00:1c.0:pcie02: allocate port service
    pcieport-driver 0000:00:1c.2: setting latency timer to 64
    pcieport-driver 0000:00:1c.2: found MSI capability
    -pcieport-driver 0000:00:1c.2: irq 46 for MSI/MSI-X
    +pcieport-driver 0000:00:1c.2: irq 510 for MSI/MSI-X
    pci_express 0000:00:1c.2:pcie00: allocate port service
    pci_express 0000:00:1c.2:pcie02: allocate port service
    pcieport-driver 0000:00:1c.3: setting latency timer to 64
    pcieport-driver 0000:00:1c.3: found MSI capability
    -pcieport-driver 0000:00:1c.3: irq 45 for MSI/MSI-X
    +pcieport-driver 0000:00:1c.3: irq 509 for MSI/MSI-X
    pci_express 0000:00:1c.3:pcie00: allocate port service
    pci_express 0000:00:1c.3:pcie02: allocate port service
    pcieport-driver 0000:00:1c.4: setting latency timer to 64
    pcieport-driver 0000:00:1c.4: found MSI capability
    -pcieport-driver 0000:00:1c.4: irq 44 for MSI/MSI-X
    +pcieport-driver 0000:00:1c.4: irq 508 for MSI/MSI-X
    pci_express 0000:00:1c.4:pcie00: allocate port service
    pci_express 0000:00:1c.4:pcie02: allocate port service
    pcieport-driver 0000:00:1c.5: setting latency timer to 64
    pcieport-driver 0000:00:1c.5: found MSI capability
    -pcieport-driver 0000:00:1c.5: irq 43 for MSI/MSI-X
    +pcieport-driver 0000:00:1c.5: irq 507 for MSI/MSI-X
    [...]
    ahci 0000:00:1f.2: PCI INT B -> GSI 19 (level, low) -> IRQ 19
    -ahci 0000:00:1f.2: irq 42 for MSI/MSI-X
    +ahci 0000:00:1f.2: irq 506 for MSI/MSI-X
    ahci 0000:00:1f.2: AHCI 0001.0100 32 slots 4 ports 3 Gbps 0xf impl SATA mode
    [...]
    e1000e 0000:01:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
    e1000e 0000:01:00.0: setting latency timer to 64
    -e1000e 0000:01:00.0: irq 41 for MSI/MSI-X
    +e1000e 0000:01:00.0: irq 505 for MSI/MSI-X

    I.e. very similar to the change between rc-3 and rc-7 you commented on
    for my notebook.

    Is this really MSI being (not) enabled, or just it using much higher
    IRQ numbers?


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