Re: [PATCH v3 RFC 2/2] nvme: improve performance for virtual NVMe devices

On Tue, Aug 16, 2016 at 01:45:03PM -0700, J Freyensee wrote: > On Mon, 2016-08-15 at 22:41 -0300, Helen Koike wrote: > >   struct nvmf_connect_command connect; > >   struct nvmf_property_set_command prop_set; > >   struct nvmf_property_get_command prop_get; > > +

Re: [PATCH v3 RFC 2/2] nvme: improve performance for virtual NVMe devices

On Tue, Aug 16, 2016 at 01:45:03PM -0700, J Freyensee wrote: > On Mon, 2016-08-15 at 22:41 -0300, Helen Koike wrote: > >   struct nvmf_connect_command connect; > >   struct nvmf_property_set_command prop_set; > >   struct nvmf_property_get_command prop_get; > > +

Re: [PATCH v3 RFC 2/2] nvme: improve performance for virtual NVMe devices

On Mon, 2016-08-15 at 22:41 -0300, Helen Koike wrote: >   > +struct nvme_doorbell_memory { > + __u8opcode; > + __u8flags; > + __u16 command_id; > + __u32 rsvd1[5]; > + __le64 prp1; >

Re: [PATCH v3 RFC 2/2] nvme: improve performance for virtual NVMe devices

On Mon, 2016-08-15 at 22:41 -0300, Helen Koike wrote: >   > +struct nvme_doorbell_memory { > + __u8opcode; > + __u8flags; > + __u16 command_id; > + __u32 rsvd1[5]; > + __le64 prp1; >

[PATCH v3 RFC 2/2] nvme: improve performance for virtual NVMe devices

From: Rob Nelson This change provides a mechanism to reduce the number of MMIO doorbell writes for the NVMe driver. When running in a virtualized environment like QEMU, the cost of an MMIO is quite hefy here. The main idea for the patch is provide the device two memory

[PATCH v3 RFC 2/2] nvme: improve performance for virtual NVMe devices

From: Rob Nelson This change provides a mechanism to reduce the number of MMIO doorbell writes for the NVMe driver. When running in a virtualized environment like QEMU, the cost of an MMIO is quite hefy here. The main idea for the patch is provide the device two memory location locations: 1) to