> It is _not_ working on the: > 2) Supermicro X8DTH-F (the boot drive in this system is running off a PCI-e > card, could the IRQ for the I/O controller be getting re-mapped and fail?)-- > worse case I can move the SSD from the 6.0gbpa SATA card to the motherboard > and see if that works, but that kind of defeats the purpose of a 6.0gbps > SATA SSD.
When IOMMU is disabled, I/OAT DMA is successful on the second motherboard (X8DTH-6F). Specifically: --- DMA Engine support [*] Intel I/OAT DMA support [*] Network: TCP receive copy offload [*] Async_tx: Offload support for the async_tx api When IOMMU/X2APIC is enabled on the X8DTH-6F it fails to boot. Will keep doing more testing to see if I get anywhere w/regards to the IOMMU. Proof of success: [ 0.757467] ioatdma: Intel(R) QuickData Technology Driver 4.00 [ 0.757690] ioatdma 0000:00:16.0: irq 88 for MSI/MSI-X [ 0.757948] ioatdma 0000:00:16.1: irq 89 for MSI/MSI-X [ 0.758166] ioatdma 0000:00:16.2: irq 90 for MSI/MSI-X [ 0.758377] ioatdma 0000:00:16.3: irq 91 for MSI/MSI-X [ 0.758577] ioatdma 0000:00:16.4: irq 92 for MSI/MSI-X [ 0.758794] ioatdma 0000:00:16.5: irq 93 for MSI/MSI-X [ 0.759000] ioatdma 0000:00:16.6: irq 94 for MSI/MSI-X [ 0.759214] ioatdma 0000:00:16.7: irq 95 for MSI/MSI-X [ 0.759461] ioatdma 0000:80:16.0: irq 96 for MSI/MSI-X [ 0.759720] ioatdma 0000:80:16.1: irq 97 for MSI/MSI-X [ 0.759963] ioatdma 0000:80:16.2: irq 98 for MSI/MSI-X [ 0.760190] ioatdma 0000:80:16.3: irq 99 for MSI/MSI-X [ 0.760414] ioatdma 0000:80:16.4: irq 100 for MSI/MSI-X [ 0.760630] ioatdma 0000:80:16.5: irq 101 for MSI/MSI-X [ 0.760862] ioatdma 0000:80:16.6: irq 102 for MSI/MSI-X [ 0.761081] ioatdma 0000:80:16.7: irq 103 for MSI/MSI-X -- ==> Further issues with the X9SRL-F -- does this board support ASPM or is this a Linux/ASPM implementation issue? [ 0.632170] pci0000:ff: ACPI _OSC support notification failed, disabling PCIe ASPM [ 0.632239] pci0000:ff: Unable to request _OSC control (_OSC support mask: 0x08) Justin. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
