Re: [SPDK] nvme drive not showing in vm in spdk

[Harris, James R <james.r.harris at intel.com>]

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Hi Nitin,

lspci should show you the virtio-scsi controller PCI device.
lsblk –S should show you the SCSI block devices attached to that virtio-scsi controller.

-Jim


From: SPDK <spdk-bounces(a)lists.01.org> on behalf of Nitin Gupta <nitin.gupta981(a)gmail.com>
Reply-To: Storage Performance Development Kit <spdk(a)lists.01.org>
Date: Monday, October 2, 2017 at 10:38 AM
To: Storage Performance Development Kit <spdk(a)lists.01.org>
Subject: Re: [SPDK] nvme drive not showing in vm in spdk

Hi Jim

Thanks for your reply and sorry for my late reply ..
could you please  give one example to know how to identify virtio-scsi controller in the linux
i mean which directory it will be present or which file system ?

Regards
Nitin

On Thu, Sep 28, 2017 at 8:30 PM, Harris, James R <james.r.harris(a)intel.com<mailto:james.r.harris(a)intel.com>> wrote:
Hi Nitin,

You should see a virtio-scsi controller in the VM, not an NVMe device.  This controller should have one LUN attached, which SPDK vhost maps to the NVMe device attached to the host.

-Jim


From: SPDK <spdk-bounces(a)lists.01.org<mailto:spdk-bounces(a)lists.01.org>> on behalf of Nitin Gupta <nitin.gupta981(a)gmail.com<mailto:nitin.gupta981(a)gmail.com>>
Reply-To: Storage Performance Development Kit <spdk(a)lists.01.org<mailto:spdk(a)lists.01.org>>
Date: Thursday, September 28, 2017 at 4:07 AM
To: Storage Performance Development Kit <spdk(a)lists.01.org<mailto:spdk(a)lists.01.org>>
Subject: [SPDK] nvme drive not showing in vm in spdk

Hi All

i am new in spdk development and currently doing spdk setup in that  was able to setup back-end storage with NVME .After running the VM with following command , there is no nvme drive present .

/usr/local/bin/qemu-system-x86_64 -m 1024 -object memory-backend-file,id=mem,size=1G,mem-path=/dev/hugepages,share=on -nographic -no-user-config -nodefaults -serial mon:telnet:localhost:7704,server,nowait -monitor mon:telnet:localhost:8804,server,nowait -numa node,memdev=mem -drive file=/home/qemu/qcows,format=qcow2,if=none,id=disk -device ide-hd,drive=disk,bootindex=0 -chardev socket,id=char0,path=./spdk/vhost.0 -device vhost-user-scsi-pci,id=scsi0,chardev=char0 --enable-kvm


how to identify which is nvme drive ?
is there any way to  enable nvme from qemu command ?

PS:  i have already specified the nvme drive in vhost.conf.in<http://vhost.conf.in>

Regards
Nitin

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