kvm.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Arseny Krasnov <arseny.krasnov@kaspersky.com>
To: Stefano Garzarella <sgarzare@redhat.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>,
	"Michael S. Tsirkin" <mst@redhat.com>,
	Jason Wang <jasowang@redhat.com>,
	"David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	Jorgen Hansen <jhansen@vmware.com>,
	Colin Ian King <colin.king@canonical.com>,
	Andra Paraschiv <andraprs@amazon.com>,
	Norbert Slusarek <nslusarek@gmx.net>,
	Alexander Popov <alex.popov@linux.com>, kvm <kvm@vger.kernel.org>,
	Linux Virtualization <virtualization@lists.linux-foundation.org>,
	netdev <netdev@vger.kernel.org>,
	kernel list <linux-kernel@vger.kernel.org>,
	stsp <stsp2@yandex.ru>, Krasnov Arseniy <oxffffaa@gmail.com>
Subject: Re: [RFC PATCH v8 13/19] virtio/vsock: rest of SOCK_SEQPACKET support
Date: Wed, 21 Apr 2021 17:50:29 +0300	[thread overview]
Message-ID: <ef33f997-3ba0-0367-e943-16bf832d2859@kaspersky.com> (raw)
In-Reply-To: <CAGxU2F6A3-pY5We-pC7-k-3v-tOdKnFvHEAs7eGo4bHnD=sM5Q@mail.gmail.com>


On 21.04.2021 12:12, Stefano Garzarella wrote:
> On Tue, Apr 13, 2021 at 03:45:25PM +0300, Arseny Krasnov wrote:
>> This adds rest of logic for SEQPACKET:
>> 1) Send SHUTDOWN on socket close for SEQPACKET type.
>> 2) Set SEQPACKET packet type during send.
>> 3) 'seqpacket_allow' flag to virtio transport.
>> 4) Set 'VIRTIO_VSOCK_SEQ_EOR' bit in flags for last
>>   packet of message.
>>
>> Signed-off-by: Arseny Krasnov <arseny.krasnov@kaspersky.com>
>> ---
>> v7 -> v8:
>> - MSG_EOR handling is removed, i didn't found exact description about
>>   how it works in POSIX.
>> - SEQ_BEGIN, SEQ_END, etc. now removed.
>>
>> include/linux/virtio_vsock.h            |  6 ++++++
>> net/vmw_vsock/virtio_transport_common.c | 16 ++++++++++++++--
>> 2 files changed, 20 insertions(+), 2 deletions(-)
>>
>> diff --git a/include/linux/virtio_vsock.h b/include/linux/virtio_vsock.h
>> index 02acf6e9ae04..f00a01bfdd7e 100644
>> --- a/include/linux/virtio_vsock.h
>> +++ b/include/linux/virtio_vsock.h
>> @@ -68,6 +68,8 @@ struct virtio_transport {
>>
>>       /* Takes ownership of the packet */
>>       int (*send_pkt)(struct virtio_vsock_pkt *pkt);
>> +
>> +      bool seqpacket_allow;
>> };
>>
>> ssize_t
>> @@ -80,6 +82,10 @@ virtio_transport_dgram_dequeue(struct vsock_sock *vsk,
>>                              struct msghdr *msg,
>>                              size_t len, int flags);
>>
>> +int
>> +virtio_transport_seqpacket_enqueue(struct vsock_sock *vsk,
>> +                                 struct msghdr *msg,
>> +                                 size_t len);
>> ssize_t
>> virtio_transport_seqpacket_dequeue(struct vsock_sock *vsk,
>>                                  struct msghdr *msg,
>> diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c
>> index 572869fef832..4c5b63601308 100644
>> --- a/net/vmw_vsock/virtio_transport_common.c
>> +++ b/net/vmw_vsock/virtio_transport_common.c
>> @@ -74,6 +74,9 @@ virtio_transport_alloc_pkt(struct virtio_vsock_pkt_info *info,
>>               err = memcpy_from_msg(pkt->buf, info->msg, len);
>>               if (err)
>>                       goto out;
>> +
>> +              if (info->msg->msg_iter.count == 0)
>> +                      pkt->hdr.flags |= VIRTIO_VSOCK_SEQ_EOR;
> We should set the flag in info->flags and assign it using cpu_to_le32() 
> or just the following:
> 			pkt->hdr.flags = cpu_to_le32(info->flags |
> 						VIRTIO_VSOCK_SEQ_EOR);
Ack
>
>
>>       }
>>
>>       trace_virtio_transport_alloc_pkt(src_cid, src_port,
>> @@ -187,7 +190,7 @@ static int virtio_transport_send_pkt_info(struct vsock_sock *vsk,
>>       struct virtio_vsock_pkt *pkt;
>>       u32 pkt_len = info->pkt_len;
>>
>> -      info->type = VIRTIO_VSOCK_TYPE_STREAM;
>> +      info->type = virtio_transport_get_type(sk_vsock(vsk));
>>
>>       t_ops = virtio_transport_get_ops(vsk);
>>       if (unlikely(!t_ops))
>> @@ -486,6 +489,15 @@ virtio_transport_seqpacket_dequeue(struct 
>> vsock_sock *vsk,
>> }
>> EXPORT_SYMBOL_GPL(virtio_transport_seqpacket_dequeue);
>>
>> +int
>> +virtio_transport_seqpacket_enqueue(struct vsock_sock *vsk,
>> +                                 struct msghdr *msg,
>> +                                 size_t len)
>> +{
>> +      return virtio_transport_stream_enqueue(vsk, msg, len);
>> +}
>> +EXPORT_SYMBOL_GPL(virtio_transport_seqpacket_enqueue);
>> +
>> int
>> virtio_transport_dgram_dequeue(struct vsock_sock *vsk,
>>                              struct msghdr *msg,
>> @@ -905,7 +917,7 @@ void virtio_transport_release(struct vsock_sock *vsk)
>>       struct sock *sk = &vsk->sk;
>>       bool remove_sock = true;
>>
>> -      if (sk->sk_type == SOCK_STREAM)
>> +      if (sk->sk_type == SOCK_STREAM || sk->sk_type == SOCK_SEQPACKET)
>>               remove_sock = virtio_transport_close(vsk);
>>
>>       list_for_each_entry_safe(pkt, tmp, &vvs->rx_queue, list) {
>> --
>> 2.25.1
>>
>

  reply	other threads:[~2021-04-21 14:50 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-13 12:39 [RFC PATCH v8 00/19] virtio/vsock: introduce SOCK_SEQPACKET support Arseny Krasnov
2021-04-13 12:41 ` [RFC PATCH v8 01/19] af_vsock: update functions for connectible socket Arseny Krasnov
2021-04-13 12:42 ` [RFC PATCH v8 02/19] af_vsock: separate wait data loop Arseny Krasnov
2021-04-13 12:42 ` [RFC PATCH v8 03/19] af_vsock: separate receive " Arseny Krasnov
2021-04-13 12:42 ` [RFC PATCH v8 04/19] af_vsock: implement SEQPACKET receive loop Arseny Krasnov
2021-04-21  8:37   ` Stefano Garzarella
2021-04-21 14:47     ` Arseny Krasnov
2021-04-13 12:43 ` [RFC PATCH v8 05/19] af_vsock: implement send logic for SEQPACKET Arseny Krasnov
2021-04-13 12:43 ` [RFC PATCH v8 06/19] af_vsock: rest of SEQPACKET support Arseny Krasnov
2021-04-13 12:43 ` [RFC PATCH v8 07/19] af_vsock: update comments for stream sockets Arseny Krasnov
2021-04-13 12:43 ` [RFC PATCH v8 08/19] virtio/vsock: set packet's type in virtio_transport_send_pkt_info() Arseny Krasnov
2021-04-13 12:44 ` [RFC PATCH v8 09/19] virtio/vsock: simplify credit update function API Arseny Krasnov
2021-04-13 12:44 ` [RFC PATCH v8 10/19] virtio/vsock: defines and constants for SEQPACKET Arseny Krasnov
2021-04-13 12:44 ` [RFC PATCH v8 11/19] virtio/vsock: dequeue callback for SOCK_SEQPACKET Arseny Krasnov
2021-04-14  5:21   ` Arseny Krasnov
2021-04-21  8:56   ` Stefano Garzarella
2021-04-21 14:49     ` Arseny Krasnov
2021-04-13 12:45 ` [RFC PATCH v8 12/19] virtio/vsock: add SEQPACKET receive logic Arseny Krasnov
2021-04-13 12:45 ` [RFC PATCH v8 13/19] virtio/vsock: rest of SOCK_SEQPACKET support Arseny Krasnov
2021-04-21  9:12   ` Stefano Garzarella
2021-04-21 14:50     ` Arseny Krasnov [this message]
2021-04-13 12:45 ` [RFC PATCH v8 14/19] virtio/vsock: enable SEQPACKET for transport Arseny Krasnov
2021-04-21  9:22   ` Stefano Garzarella
2021-04-13 12:46 ` [RFC PATCH v8 15/19] vhost/vsock: " Arseny Krasnov
2021-04-21  9:31   ` Stefano Garzarella
2021-04-13 12:46 ` [RFC PATCH v8 16/19] vsock/loopback: " Arseny Krasnov
2021-04-21  9:34   ` Stefano Garzarella
2021-04-13 12:46 ` [RFC PATCH v8 17/19] vsock_test: add SOCK_SEQPACKET tests Arseny Krasnov
2021-04-21  9:35   ` Stefano Garzarella
2021-04-21 15:00     ` Arseny Krasnov
2021-04-13 12:47 ` [RFC PATCH v8 18/19] virtio/vsock: update trace event for SEQPACKET Arseny Krasnov
2021-04-13 12:47 ` [RFC PATCH v8 19/19] af_vsock: serialize writes to shared socket Arseny Krasnov
2021-04-14 10:51   ` Arseny Krasnov
2021-04-21  9:38     ` Stefano Garzarella
2021-04-21 15:02       ` Arseny Krasnov
2021-04-21  9:52 ` [RFC PATCH v8 00/19] virtio/vsock: introduce SOCK_SEQPACKET support Stefano Garzarella
2021-04-21 15:06   ` Arseny Krasnov
2021-04-22  8:46     ` Stefano Garzarella
2021-04-22  9:40       ` Arseny Krasnov
2021-04-22 10:02         ` Stefano Garzarella
2021-04-22 10:29           ` Arseny Krasnov
2021-04-22 10:48             ` Stefano Garzarella
2021-04-22 11:41               ` Arseny Krasnov

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=ef33f997-3ba0-0367-e943-16bf832d2859@kaspersky.com \
    --to=arseny.krasnov@kaspersky.com \
    --cc=alex.popov@linux.com \
    --cc=andraprs@amazon.com \
    --cc=colin.king@canonical.com \
    --cc=davem@davemloft.net \
    --cc=jasowang@redhat.com \
    --cc=jhansen@vmware.com \
    --cc=kuba@kernel.org \
    --cc=kvm@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mst@redhat.com \
    --cc=netdev@vger.kernel.org \
    --cc=nslusarek@gmx.net \
    --cc=oxffffaa@gmail.com \
    --cc=sgarzare@redhat.com \
    --cc=stefanha@redhat.com \
    --cc=stsp2@yandex.ru \
    --cc=virtualization@lists.linux-foundation.org \
    /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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).