From: Ming Lin <mlin@kernel.org>
To: linux-nvme@lists.infradead.org
Cc: Christoph Hellwig <hch@lst.de>,
qemu-devel@nongnu.org,
"Nicholas A. Bellinger" <nab@linux-iscsi.org>,
virtualization@lists.linux-foundation.org
Subject: [Qemu-devel] [RFC PATCH 0/9] vhost-nvme: new qemu nvme backend using nvme target
Date: Thu, 19 Nov 2015 16:20:59 -0800 [thread overview]
Message-ID: <1447978868-17138-1-git-send-email-mlin@kernel.org> (raw)
Hi,
This is the first attempt to add a new qemu nvme backend using
in-kernel nvme target.
Most code are ported from qemu-nvme and also borrow code from
Hannes Reinecke's rts-megasas.
It's similar as vhost-scsi, but doesn't use virtio.
The advantage is guest can run unmodified NVMe driver.
So guest can be any OS that has a NVMe driver.
The goal is to get as good performance as vhost-scsi.
But for now, peformance is poor.
MMIO is the bottleneck.
One improvment could be to use google's NVMe vendor extension that
I send in another thread, aslo here:
https://git.kernel.org/cgit/linux/kernel/git/mlin/linux.git/log/?h=nvme-google-ext
Qemu side:
http://www.minggr.net/cgit/cgit.cgi/qemu/log/?h=vhost-nvme.0
Kernel side also here:
https://git.kernel.org/cgit/linux/kernel/git/mlin/linux.git/log/?h=vhost-nvme.0
Thanks for any comment,
Ming
next reply other threads:[~2015-11-20 0:21 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-20 0:20 Ming Lin [this message]
2015-11-20 0:21 ` [Qemu-devel] [RFC PATCH 1/9] nvme-vhost: add initial commit Ming Lin
2015-11-20 0:21 ` [Qemu-devel] [RFC PATCH 2/9] nvme-vhost: add basic ioctl handlers Ming Lin
2015-11-20 0:21 ` [Qemu-devel] [RFC PATCH 3/9] nvme-vhost: add basic nvme bar read/write Ming Lin
2015-11-20 0:21 ` [Qemu-devel] [RFC PATCH 4/9] nvmet: add a controller "start" hook Ming Lin
2015-11-20 5:13 ` Christoph Hellwig
2015-11-20 5:31 ` Ming Lin
2015-11-20 0:21 ` [Qemu-devel] [RFC PATCH 5/9] nvme-vhost: add controller "start" callback Ming Lin
2015-11-20 0:21 ` [Qemu-devel] [RFC PATCH 6/9] nvmet: add a "parse_extra_admin_cmd" hook Ming Lin
2015-11-20 0:21 ` [Qemu-devel] [RFC PATCH 7/9] nvme-vhost: add "parse_extra_admin_cmd" callback Ming Lin
2015-11-20 0:21 ` [Qemu-devel] [RFC PATCH 8/9] nvme-vhost: add vhost memory helpers Ming Lin
2015-11-20 0:21 ` [Qemu-devel] [RFC PATCH 9/9] nvme-vhost: add nvme queue handlers Ming Lin
2015-11-20 5:16 ` [Qemu-devel] [RFC PATCH 0/9] vhost-nvme: new qemu nvme backend using nvme target Christoph Hellwig
2015-11-20 5:33 ` Ming Lin
2015-11-21 13:11 ` Paolo Bonzini
2015-11-23 8:17 ` Ming Lin
2015-11-23 14:14 ` Paolo Bonzini
2015-11-24 7:27 ` Ming Lin
2015-11-24 8:23 ` Ming Lin
2015-11-24 10:51 ` Paolo Bonzini
2015-11-24 19:25 ` Ming Lin
2015-11-25 11:27 ` Paolo Bonzini
2015-11-25 18:51 ` Ming Lin
2015-11-25 19:32 ` Paolo Bonzini
2015-11-30 23:20 ` Ming Lin
2015-12-01 16:02 ` Paolo Bonzini
2015-12-01 16:26 ` Ming Lin
2015-12-01 16:59 ` Paolo Bonzini
2015-12-02 5:13 ` Ming Lin
2015-12-02 10:07 ` Paolo Bonzini
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