From mboxrd@z Thu Jan 1 00:00:00 1970
Return-Path: <dev-bounces@dpdk.org>
Received: from dpdk.org (dpdk.org [92.243.14.124])
by inbox.dpdk.org (Postfix) with ESMTP id B3AD6A04F2;
Thu, 5 Dec 2019 06:38:54 +0100 (CET)
Received: from [92.243.14.124] (localhost [127.0.0.1])
by dpdk.org (Postfix) with ESMTP id 09E6A1BF7F;
Thu, 5 Dec 2019 06:38:54 +0100 (CET)
Received: from mail-pf1-f195.google.com (mail-pf1-f195.google.com
[209.85.210.195]) by dpdk.org (Postfix) with ESMTP id 9F8C71BF7B
for <dev@dpdk.org>; Thu, 5 Dec 2019 06:38:50 +0100 (CET)
Received: by mail-pf1-f195.google.com with SMTP id 2so1023914pfg.12
for <dev@dpdk.org>; Wed, 04 Dec 2019 21:38:50 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
d=smartx-com.20150623.gappssmtp.com; s=20150623;
h=mime-version:from:to:cc:subject:date:message-id:in-reply-to
:references:content-transfer-encoding;
bh=vc/358DkgxGHhxawomYKDVlgs+GCtf7JIroB1rUwUS0=;
b=fq5RfZ49NzK1x3rKRvSu4VKLG4NnGyN+CNIRUg2IzNR4pEgI3dC4MdynO5BvQArBTi
cjDh2JigdQ4KgMwlWq15AFjEY77MU9PiOymxzyDXC+7BFfuk5IWP0m5l8lEinl+yKjjX
bFeo/ycSMDDrNqLt5jEbjXDiLZGxyXYtUoC0q0vOvfAoCQKfW9cvoB9Jk3XEeyfL75XA
/ir6JqsfDzc3FavJVKemzHXjCVjMPP9cv+HFMcw/fhayr4juHlnk0GCRHw27ZvZRjIEk
6TRScgSeAvDDB2JZVxW/FuKI6csWGc1+Kg1Bep24uRP/KubFv6YAQwTiQM+NMBCw9QZ0
gZyQ==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
d=1e100.net; s=20161025;
h=mime-version:x-gm-message-state:from:to:cc:subject:date:message-id
:in-reply-to:references:content-transfer-encoding;
bh=vc/358DkgxGHhxawomYKDVlgs+GCtf7JIroB1rUwUS0=;
b=JODicLND01Z4OMFYGXFRmLrtWUZlc9VK8+7rfJCJ/DBdoP/k69qUkjW7ripg56rNeK
3r2QGM/7LFYtYqzPPDHjpO2ZBX9mwOJUrWhUoelWhE1ZZEvGVg6RHAmsZcN0RcZNymRw
T9b0wt/v3hjMvvipMvcigUXgngHfWB6LjJzqywevhb2P3flQyl/e4M1B93+4D06GaIBp
wpgDqshSDwNRisDuEYOMhqejfdt4RsPwSW8DHRT5TtBX1WjNQJ+ZY2XY4/GX/0umpaqI
O1uJ+qyASM7DWWm5ckh0L3ntG79PoDLhYzFiG3RG9FmytaLigDRRkZFfb9AaylPvejc6
GpZQ==
MIME-Version: 1.0
X-Gm-Message-State: APjAAAXN6NBwZZXcstcmhicyVVhf3RI/TbC/xohqnG8oO03+21EuzWcu
qZaOTdY4bEwvCkbVTMCmFr1tUMoemu+OCEjp6OIzGlMeJ4+6QilOav9pvf9y/m5HOLQJpS3s
X-Google-Smtp-Source: APXvYqwFFuSLn0gIJy68JdaegLZ/NknUBiBxxp6po/KVzK5hJJcb3SzuHhEI5cqd1SXBmrKWfxv/Uw==
X-Received: by 2002:a63:d406:: with SMTP id a6mr7652154pgh.264.1575524329573;
Wed, 04 Dec 2019 21:38:49 -0800 (PST)
Received: from 31_216.localdomain (199.168.142.16.16clouds.com.
[199.168.142.16])
by smtp.gmail.com with ESMTPSA id e27sm10518322pfm.26.2019.12.04.21.38.46
(version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);
Wed, 04 Dec 2019 21:38:48 -0800 (PST)
From: Li Feng <fengli@smartx.com>
To: Maxime Coquelin <maxime.coquelin@redhat.com>,
Tiwei Bie <tiwei.bie@intel.com>, Zhihong Wang <zhihong.wang@intel.com>
Cc: dev@dpdk.org,
Li Feng <fengli@smartx.com>
Date: Thu, 5 Dec 2019 13:38:33 +0800
Message-Id: <20191205053833.29068-1-fengli@smartx.com>
X-Mailer: git-send-email 2.11.0
In-Reply-To: <20191202145735.9763-1-fengli@smartx.com>
References: <20191202145735.9763-1-fengli@smartx.com>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
Subject: [dpdk-dev] [PATCH v3] vhost: add config change slave msg support
X-BeenThere: dev@dpdk.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: DPDK patches and discussions <dev.dpdk.org>
List-Unsubscribe: <https://mails.dpdk.org/options/dev>,
<mailto:dev-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://mails.dpdk.org/archives/dev/>
List-Post: <mailto:dev@dpdk.org>
List-Help: <mailto:dev-request@dpdk.org?subject=help>
List-Subscribe: <https://mails.dpdk.org/listinfo/dev>,
<mailto:dev-request@dpdk.org?subject=subscribe>
Errors-To: dev-bounces@dpdk.org
Sender: "dev" <dev-bounces@dpdk.org>
This msg is used to notify qemu that should get the config of backend.
For example, vhost-user-blk uses this msg to notify guest os the
compacity of backend has changed.
Signed-off-by: Li Feng <fengli@smartx.com>
---
v3:
* Move the declare to rte_vhost.h
* Add the symbol in rte_vhost_version.map
v2:
* Fix a little log typo.
lib/librte_vhost/rte_vhost.h | 12 ++++++++++++
lib/librte_vhost/rte_vhost_version.map | 1 +
lib/librte_vhost/vhost_user.c | 31 ++++++++++++++++++++++++++++++=
+
lib/librte_vhost/vhost_user.h | 1 +
4 files changed, 45 insertions(+)
diff --git a/lib/librte_vhost/rte_vhost.h b/lib/librte_vhost/rte_vhost.h
index 7b5dc87c2..fc28da264 100644
--- a/lib/librte_vhost/rte_vhost.h
+++ b/lib/librte_vhost/rte_vhost.h
@@ -977,6 +977,18 @@ __rte_experimental
int
rte_vhost_get_vdpa_device_id(int vid);
=20
+/**
+ * Notify the guest that should get config from backend.
+ *
+ * @param vid
+ * vhost device ID
+ * @return
+ * 0 on success, < 0 on failure
+ */
+__rte_experimental
+int
+rte_vhost_user_slave_config_change(int vid);
+
#ifdef __cplusplus
}
#endif
diff --git a/lib/librte_vhost/rte_vhost_version.map b/lib/librte_vhost/rte_=
vhost_version.map
index c512377fe..acf013d6d 100644
--- a/lib/librte_vhost/rte_vhost_version.map
+++ b/lib/librte_vhost/rte_vhost_version.map
@@ -65,4 +65,5 @@ EXPERIMENTAL {
rte_vhost_clr_inflight_desc_packed;
rte_vhost_get_vhost_ring_inflight;
rte_vhost_get_vring_base_from_inflight;
+ rte_vhost_user_slave_config_change;
};
diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c
index 0cfb8b792..10f2e47d5 100644
--- a/lib/librte_vhost/vhost_user.c
+++ b/lib/librte_vhost/vhost_user.c
@@ -2840,6 +2840,37 @@ vhost_user_iotlb_miss(struct virtio_net *dev, uint64=
_t iova, uint8_t perm)
return 0;
}
=20
+static int
+vhost_user_slave_config_change(struct virtio_net *dev)
+{
+ int ret;
+ struct VhostUserMsg msg =3D {
+ .request.slave =3D VHOST_USER_SLAVE_CONFIG_CHANGE_MSG,
+ .flags =3D VHOST_USER_VERSION,
+ .size =3D 0,
+ };
+
+ ret =3D send_vhost_message(dev->slave_req_fd, &msg);
+ if (ret < 0) {
+ RTE_LOG(ERR, VHOST_CONFIG,
+ "Failed to send config change (%d)\n",
+ ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+int
+rte_vhost_user_slave_config_change(int vid)
+{
+ struct virtio_net *dev;
+ dev =3D get_device(vid);
+ if (!dev)
+ return -ENODEV;
+ return vhost_user_slave_config_change(dev);
+}
+
static int vhost_user_slave_set_vring_host_notifier(struct virtio_net *dev=
,
int index, int fd,
uint64_t offset,
diff --git a/lib/librte_vhost/vhost_user.h b/lib/librte_vhost/vhost_user.h
index 6563f7315..86c364a93 100644
--- a/lib/librte_vhost/vhost_user.h
+++ b/lib/librte_vhost/vhost_user.h
@@ -62,6 +62,7 @@ typedef enum VhostUserRequest {
typedef enum VhostUserSlaveRequest {
VHOST_USER_SLAVE_NONE =3D 0,
VHOST_USER_SLAVE_IOTLB_MSG =3D 1,
+ VHOST_USER_SLAVE_CONFIG_CHANGE_MSG =3D 2,
VHOST_USER_SLAVE_VRING_HOST_NOTIFIER_MSG =3D 3,
VHOST_USER_SLAVE_MAX
} VhostUserSlaveRequest;
--=20
2.11.0
--=20
The SmartX email address is only for business purpose. Any sent message=20
that is not related to the business is not authorized or permitted by=20
SmartX.
=E6=9C=AC=E9=82=AE=E7=AE=B1=E4=B8=BA=E5=8C=97=E4=BA=AC=E5=BF=97=E5=87=8C=E6=
=B5=B7=E7=BA=B3=E7=A7=91=E6=8A=80=E6=9C=89=E9=99=90=E5=85=AC=E5=8F=B8=EF=BC=
=88SmartX=EF=BC=89=E5=B7=A5=E4=BD=9C=E9=82=AE=E7=AE=B1. =E5=A6=82=E6=9C=AC=
=E9=82=AE=E7=AE=B1=E5=8F=91=E5=87=BA=E7=9A=84=E9=82=AE=E4=BB=B6=E4=B8=8E=E5=
=B7=A5=E4=BD=9C=E6=97=A0=E5=85=B3,=E8=AF=A5=E9=82=AE=E4=BB=B6=E6=9C=AA=E5=
=BE=97=E5=88=B0=E6=9C=AC=E5=85=AC=E5=8F=B8=E4=BB=BB=E4=BD=95=E7=9A=84=E6=98=
=8E=E7=A4=BA=E6=88=96=E9=BB=98=E7=A4=BA=E7=9A=84=E6=8E=88=E6=9D=83.