Re: [PATCH v2] nvme: Add 48-bit DMA address quirk for Amazon NVMe controllers

2021-02-10 Thread Filippo Sironi
On 2/10/21 8:37 AM, Christoph Hellwig wrote: On Wed, Feb 10, 2021 at 01:39:42AM +0100, Filippo Sironi wrote: Amazon NVMe controllers do not support 64-bit DMA addresses; they are limited to 48-bit DMA addresses. Let's add a quirk to ensure that we make use of 48-bit DMA addresses to avoid misb

Re: [PATCH v2] nvme: Add 48-bit DMA address quirk for Amazon NVMe controllers

2021-02-09 Thread Christoph Hellwig
On Wed, Feb 10, 2021 at 01:39:42AM +0100, Filippo Sironi wrote: > Amazon NVMe controllers do not support 64-bit DMA addresses; they are > limited to 48-bit DMA addresses. Let's add a quirk to ensure that we > make use of 48-bit DMA addresses to avoid misbehavior. This should probably say some, an

[PATCH v2] nvme: Add 48-bit DMA address quirk for Amazon NVMe controllers

2021-02-09 Thread Filippo Sironi
Amazon NVMe controllers do not support 64-bit DMA addresses; they are limited to 48-bit DMA addresses. Let's add a quirk to ensure that we make use of 48-bit DMA addresses to avoid misbehavior. This affects all Amazon NVMe controllers that expose EBS volumes (0x0061, 0x0065, 0x8061) and local ins