From: pbonzini@redhat.com (Paolo Bonzini)
Subject: [RFC PATCH 0/9] vhost-nvme: new qemu nvme backend using nvme target
Date: Tue, 24 Nov 2015 11:51:14 +0100 [thread overview]
Message-ID: <56544122.3010300@redhat.com> (raw)
In-Reply-To: <1448350074.6696.3.camel@hasee>
On 24/11/2015 08:27, Ming Lin wrote:
> handle_notify (qemu/hw/block/dataplane/virtio-blk.c:126)
> aio_dispatch (qemu/aio-posix.c:329)
> aio_poll (qemu/aio-posix.c:474)
> iothread_run (qemu/iothread.c:45)
> start_thread (pthread_create.c:312)
> /lib/x86_64-linux-gnu/libc.so.6(clone+0x6d)
>
> I think I'll have a "nvme_dev_notify" similar as "handle_notify"
>
> static void nvme_dev_notify(EventNotifier *e)
> {
> ....
> }
>
> But then how can I know this notify is for cq or sq?
virtio-blk has a single queue, so it has a single EventNotifier. Your
code using multiple EventNotifiers is fine, you can use
aio_set_event_notifier multiple times on the same iothread.
Paolo
WARNING: multiple messages have this Message-ID (diff)
From: Paolo Bonzini <pbonzini@redhat.com>
To: Ming Lin <mlin@kernel.org>
Cc: qemu-devel@nongnu.org, Christoph Hellwig <hch@lst.de>,
linux-nvme@lists.infradead.org,
virtualization@lists.linux-foundation.org
Subject: Re: [RFC PATCH 0/9] vhost-nvme: new qemu nvme backend using nvme target
Date: Tue, 24 Nov 2015 11:51:14 +0100 [thread overview]
Message-ID: <56544122.3010300@redhat.com> (raw)
In-Reply-To: <1448350074.6696.3.camel@hasee>
On 24/11/2015 08:27, Ming Lin wrote:
> handle_notify (qemu/hw/block/dataplane/virtio-blk.c:126)
> aio_dispatch (qemu/aio-posix.c:329)
> aio_poll (qemu/aio-posix.c:474)
> iothread_run (qemu/iothread.c:45)
> start_thread (pthread_create.c:312)
> /lib/x86_64-linux-gnu/libc.so.6(clone+0x6d)
>
> I think I'll have a "nvme_dev_notify" similar as "handle_notify"
>
> static void nvme_dev_notify(EventNotifier *e)
> {
> ....
> }
>
> But then how can I know this notify is for cq or sq?
virtio-blk has a single queue, so it has a single EventNotifier. Your
code using multiple EventNotifiers is fine, you can use
aio_set_event_notifier multiple times on the same iothread.
Paolo
WARNING: multiple messages have this Message-ID (diff)
From: Paolo Bonzini <pbonzini@redhat.com>
To: Ming Lin <mlin@kernel.org>
Cc: qemu-devel@nongnu.org, Christoph Hellwig <hch@lst.de>,
linux-nvme@lists.infradead.org,
virtualization@lists.linux-foundation.org
Subject: Re: [Qemu-devel] [RFC PATCH 0/9] vhost-nvme: new qemu nvme backend using nvme target
Date: Tue, 24 Nov 2015 11:51:14 +0100 [thread overview]
Message-ID: <56544122.3010300@redhat.com> (raw)
In-Reply-To: <1448350074.6696.3.camel@hasee>
On 24/11/2015 08:27, Ming Lin wrote:
> handle_notify (qemu/hw/block/dataplane/virtio-blk.c:126)
> aio_dispatch (qemu/aio-posix.c:329)
> aio_poll (qemu/aio-posix.c:474)
> iothread_run (qemu/iothread.c:45)
> start_thread (pthread_create.c:312)
> /lib/x86_64-linux-gnu/libc.so.6(clone+0x6d)
>
> I think I'll have a "nvme_dev_notify" similar as "handle_notify"
>
> static void nvme_dev_notify(EventNotifier *e)
> {
> ....
> }
>
> But then how can I know this notify is for cq or sq?
virtio-blk has a single queue, so it has a single EventNotifier. Your
code using multiple EventNotifiers is fine, you can use
aio_set_event_notifier multiple times on the same iothread.
Paolo
next prev parent reply other threads:[~2015-11-24 10:51 UTC|newest]
Thread overview: 90+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-20 0:20 [RFC PATCH 0/9] vhost-nvme: new qemu nvme backend using nvme target Ming Lin
2015-11-20 0:20 ` [Qemu-devel] " Ming Lin
2015-11-20 0:20 ` Ming Lin
2015-11-20 0:21 ` [RFC PATCH 1/9] nvme-vhost: add initial commit Ming Lin
2015-11-20 0:21 ` [Qemu-devel] " Ming Lin
2015-11-20 0:21 ` Ming Lin
2015-11-20 0:21 ` [RFC PATCH 2/9] nvme-vhost: add basic ioctl handlers Ming Lin
2015-11-20 0:21 ` [Qemu-devel] " Ming Lin
2015-11-20 0:21 ` Ming Lin
2015-11-20 0:21 ` [RFC PATCH 3/9] nvme-vhost: add basic nvme bar read/write Ming Lin
2015-11-20 0:21 ` [Qemu-devel] " Ming Lin
2015-11-20 0:21 ` Ming Lin
2015-11-20 0:21 ` [RFC PATCH 4/9] nvmet: add a controller "start" hook Ming Lin
2015-11-20 0:21 ` [Qemu-devel] " Ming Lin
2015-11-20 0:21 ` Ming Lin
2015-11-20 5:13 ` Christoph Hellwig
2015-11-20 5:13 ` [Qemu-devel] " Christoph Hellwig
2015-11-20 5:31 ` Ming Lin
2015-11-20 5:31 ` [Qemu-devel] " Ming Lin
2015-11-20 5:31 ` Ming Lin
2015-11-20 5:13 ` Christoph Hellwig
2015-11-20 0:21 ` [RFC PATCH 5/9] nvme-vhost: add controller "start" callback Ming Lin
2015-11-20 0:21 ` [Qemu-devel] " Ming Lin
2015-11-20 0:21 ` Ming Lin
2015-11-20 0:21 ` [RFC PATCH 6/9] nvmet: add a "parse_extra_admin_cmd" hook Ming Lin
2015-11-20 0:21 ` [Qemu-devel] " Ming Lin
2015-11-20 0:21 ` Ming Lin
2015-11-20 0:21 ` [RFC PATCH 7/9] nvme-vhost: add "parse_extra_admin_cmd" callback Ming Lin
2015-11-20 0:21 ` [Qemu-devel] " Ming Lin
2015-11-20 0:21 ` Ming Lin
2015-11-20 0:21 ` [RFC PATCH 8/9] nvme-vhost: add vhost memory helpers Ming Lin
2015-11-20 0:21 ` [Qemu-devel] " Ming Lin
2015-11-20 0:21 ` Ming Lin
2015-11-20 0:21 ` [RFC PATCH 9/9] nvme-vhost: add nvme queue handlers Ming Lin
2015-11-20 0:21 ` [Qemu-devel] " Ming Lin
2015-11-20 0:21 ` Ming Lin
2015-11-20 5:16 ` [RFC PATCH 0/9] vhost-nvme: new qemu nvme backend using nvme target Christoph Hellwig
2015-11-20 5:16 ` Christoph Hellwig
2015-11-20 5:16 ` [Qemu-devel] " Christoph Hellwig
2015-11-20 5:33 ` Ming Lin
2015-11-20 5:33 ` [Qemu-devel] " Ming Lin
2015-11-20 5:33 ` Ming Lin
2015-11-21 13:11 ` Paolo Bonzini
2015-11-21 13:11 ` Paolo Bonzini
2015-11-21 13:11 ` [Qemu-devel] " Paolo Bonzini
2015-11-23 8:17 ` Ming Lin
2015-11-23 8:17 ` [Qemu-devel] " Ming Lin
2015-11-23 8:17 ` Ming Lin
2015-11-23 14:14 ` Paolo Bonzini
2015-11-23 14:14 ` [Qemu-devel] " Paolo Bonzini
2015-11-23 14:14 ` Paolo Bonzini
2015-11-24 7:27 ` Ming Lin
2015-11-24 7:27 ` [Qemu-devel] " Ming Lin
2015-11-24 7:27 ` Ming Lin
2015-11-24 8:23 ` Ming Lin
2015-11-24 8:23 ` [Qemu-devel] " Ming Lin
2015-11-24 8:23 ` Ming Lin
2015-11-24 10:51 ` Paolo Bonzini [this message]
2015-11-24 10:51 ` [Qemu-devel] " Paolo Bonzini
2015-11-24 10:51 ` Paolo Bonzini
2015-11-24 19:25 ` Ming Lin
2015-11-24 19:25 ` [Qemu-devel] " Ming Lin
2015-11-24 19:25 ` Ming Lin
2015-11-25 11:27 ` Paolo Bonzini
2015-11-25 11:27 ` [Qemu-devel] " Paolo Bonzini
2015-11-25 11:27 ` Paolo Bonzini
2015-11-25 18:51 ` Ming Lin
2015-11-25 18:51 ` [Qemu-devel] " Ming Lin
2015-11-25 18:51 ` Ming Lin
2015-11-25 19:32 ` Paolo Bonzini
2015-11-25 19:32 ` [Qemu-devel] " Paolo Bonzini
2015-11-25 19:32 ` Paolo Bonzini
2015-11-30 23:20 ` Ming Lin
2015-11-30 23:20 ` [Qemu-devel] " Ming Lin
2015-11-30 23:20 ` Ming Lin
2015-12-01 16:02 ` Paolo Bonzini
2015-12-01 16:02 ` [Qemu-devel] " Paolo Bonzini
2015-12-01 16:02 ` Paolo Bonzini
2015-12-01 16:26 ` Ming Lin
2015-12-01 16:26 ` [Qemu-devel] " Ming Lin
2015-12-01 16:26 ` Ming Lin
2015-12-01 16:59 ` Paolo Bonzini
2015-12-01 16:59 ` [Qemu-devel] " Paolo Bonzini
2015-12-01 16:59 ` Paolo Bonzini
2015-12-02 5:13 ` Ming Lin
2015-12-02 5:13 ` [Qemu-devel] " Ming Lin
2015-12-02 5:13 ` Ming Lin
2015-12-02 10:07 ` Paolo Bonzini
2015-12-02 10:07 ` [Qemu-devel] " Paolo Bonzini
2015-12-02 10:07 ` Paolo Bonzini
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=56544122.3010300@redhat.com \
--to=pbonzini@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.