Re: [PATCH] iommu/amd: Increase interrupt remapping table limit to 512 entries

Jerry, On 12/2/20 6:53 AM, Jerry Snitselaar wrote: Suravee Suthikulpanit @ 2020-10-14 19:50 MST: Certain device drivers allocate IO queues on a per-cpu basis. On AMD EPYC platform, which can support up-to 256 cpu threads, this can exceed the current MAX_IRQ_PER_TABLE limit of 256, and result

Re: [PATCH] iommu/amd: Increase interrupt remapping table limit to 512 entries

Suravee Suthikulpanit @ 2020-10-14 19:50 MST: > Certain device drivers allocate IO queues on a per-cpu basis. > On AMD EPYC platform, which can support up-to 256 cpu threads, > this can exceed the current MAX_IRQ_PER_TABLE limit of 256, > and result in the error message: > > AMD-Vi: Failed

Re: [PATCH] iommu/amd: Increase interrupt remapping table limit to 512 entries

On Thu, Oct 15, 2020 at 02:50:02AM +, Suravee Suthikulpanit wrote: > Certain device drivers allocate IO queues on a per-cpu basis. > On AMD EPYC platform, which can support up-to 256 cpu threads, > this can exceed the current MAX_IRQ_PER_TABLE limit of 256, > and result in the error message: >

Re: [PATCH] iommu/amd: Increase interrupt remapping table limit to 512 entries

Hi Joerg, Do you have any concerns regarding this patch? Thanks, Suravee On 10/15/20 9:50 AM, Suravee Suthikulpanit wrote: Certain device drivers allocate IO queues on a per-cpu basis. On AMD EPYC platform, which can support up-to 256 cpu threads, this can exceed the current MAX_IRQ_PER_TABLE

[PATCH] iommu/amd: Increase interrupt remapping table limit to 512 entries

Certain device drivers allocate IO queues on a per-cpu basis. On AMD EPYC platform, which can support up-to 256 cpu threads, this can exceed the current MAX_IRQ_PER_TABLE limit of 256, and result in the error message: AMD-Vi: Failed to allocate IRTE This has been observed with certain NVME