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From: Nikos Dragazis <ndragazis@arrikto.com>
To: "Alex Bennée" <alex.bennee@linaro.org>
Cc: Stefan Hajnoczi <stefanha@redhat.com>,
	"Michael S . Tsirkin" <mst@redhat.com>,
	virtio-dev@lists.oasis-open.org
Subject: Re: [virtio-dev] [PATCH v5 01/10] vhost-user: add vhost-user device type
Date: Fri, 17 Jul 2020 19:52:19 +0300	[thread overview]
Message-ID: <2a539c1d-683f-e403-8c2c-7b0c4d37bbc9@arrikto.com> (raw)
In-Reply-To: <87v9inv26c.fsf@linaro.org>

On 16/7/20 7:45 μ.μ., Alex Bennée wrote:

> Nikos Dragazis <ndragazis@arrikto.com> writes:
>
>> +
>> +    When the driver clears VIRTIO_VHOST_USER_SLAVE_UP while the vhost-user
>> +    master is connected, the vhost-user master is disconnected.
> What happens to messages in flight? Do they stay in the queues until
> there is a re-connection?

After the reconnection, the master-slave communication starts from
scratch, i.e., there is no state. At least, this is what I can infer
from the vhost-user spec.  So, in-flight vhost-user messages have to be
discarded. We should mention it explicitly in the spec.

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  parent reply	other threads:[~2020-07-17 16:52 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-18 20:37 [virtio-dev] [PATCH v5 00/10] introduce virtio vhost-user backend device type Nikos Dragazis
2020-05-18 20:37 ` [virtio-dev] [PATCH v5 01/10] vhost-user: add vhost-user " Nikos Dragazis
2020-07-16 16:45   ` Alex Bennée
2020-07-17  9:26     ` Stefan Hajnoczi
2020-07-17 10:28       ` Alex Bennée
2020-07-17 11:17       ` Nikos Dragazis
2020-07-20  9:37         ` Alex Bennée
2020-07-21 11:42           ` Nikos Dragazis
2020-07-23  6:15         ` Stefan Hajnoczi
2020-07-24 13:14           ` Nikos Dragazis
2020-07-24 14:41       ` Michael S. Tsirkin
2020-07-24 17:31         ` Nikos Dragazis
2020-07-27 12:25           ` Stefan Hajnoczi
2020-07-27 18:59             ` Nikos Dragazis
2020-07-29 13:52               ` Michael S. Tsirkin
2020-07-29 21:05                 ` Nikos Dragazis
2020-08-24 14:43                   ` Nikos Dragazis
2020-07-17 16:52     ` Nikos Dragazis [this message]
2020-05-18 20:37 ` [virtio-dev] [PATCH v5 02/10] vhost-user: minor fixes Nikos Dragazis
2020-07-16 16:48   ` Alex Bennée
2020-07-17  9:27   ` Stefan Hajnoczi
2020-05-18 20:37 ` [virtio-dev] [PATCH v5 03/10] vhost-user: add requirements for the notification capability Nikos Dragazis
2020-07-17  9:34   ` Stefan Hajnoczi
2020-07-17 16:02     ` Nikos Dragazis
2020-07-23  6:16       ` Stefan Hajnoczi
2020-05-18 20:37 ` [virtio-dev] [PATCH v5 04/10] vhost-user: update shared memory capability Nikos Dragazis
2020-07-17  9:36   ` Stefan Hajnoczi
2020-07-17 15:00     ` Nikos Dragazis
2020-05-18 20:37 ` [virtio-dev] [PATCH v5 05/10] vhost-user: add conformance targets and clauses Nikos Dragazis
2020-07-17  9:37   ` Stefan Hajnoczi
2020-07-20 15:01   ` Alex Bennée
2020-05-18 20:37 ` [virtio-dev] [PATCH v5 06/10] vhost-user: change the device id Nikos Dragazis
2020-07-20 15:03   ` Alex Bennée
2020-05-18 20:37 ` [virtio-dev] [PATCH v5 07/10] vhost-user: minor fix on status register Nikos Dragazis
2020-07-17  9:39   ` Stefan Hajnoczi
2020-05-18 20:37 ` [virtio-dev] [PATCH v5 08/10] vhost-user: remove the extra PCI capabilities Nikos Dragazis
2020-07-17  9:48   ` Stefan Hajnoczi
2020-07-17 15:03     ` Nikos Dragazis
2020-07-23  6:29       ` Stefan Hajnoczi
2020-07-24 13:41         ` Nikos Dragazis
2020-05-18 20:37 ` [virtio-dev] [PATCH v5 09/10] vhost-user: intercept slave's reply to VHOST_USER_GET_PROTOCOL_FEATURES Nikos Dragazis
2020-07-17  9:57   ` Stefan Hajnoczi
2020-07-17 15:37     ` Nikos Dragazis
2020-07-23  6:32       ` Stefan Hajnoczi
2020-05-18 20:37 ` [virtio-dev] [PATCH v5 10/10] vhost-user: clarify that we are talking about slave-initiated messages Nikos Dragazis
2020-07-17  9:59   ` Stefan Hajnoczi
2020-06-24 18:01 ` [virtio-dev] [PATCH v5 00/10] introduce virtio vhost-user backend device type Nikos Dragazis

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