From mboxrd@z Thu Jan 1 00:00:00 1970
Return-Path: <dev-bounces@dpdk.org>
Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124])
by inbox.dpdk.org (Postfix) with ESMTP id 1717FA0A05;
Tue, 19 Jan 2021 22:30:21 +0100 (CET)
Received: from [217.70.189.124] (localhost [127.0.0.1])
by mails.dpdk.org (Postfix) with ESMTP id 479FE140F9D;
Tue, 19 Jan 2021 22:28:06 +0100 (CET)
Received: from us-smtp-delivery-124.mimecast.com
(us-smtp-delivery-124.mimecast.com [216.205.24.124])
by mails.dpdk.org (Postfix) with ESMTP id 2C114140F86
for <dev@dpdk.org>; Tue, 19 Jan 2021 22:28:04 +0100 (CET)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com;
s=mimecast20190719; t=1611091683;
h=from:from:reply-to:subject:subject:date:date:message-id:message-id:
to:to:cc:cc:mime-version:mime-version:content-type:content-type:
content-transfer-encoding:content-transfer-encoding:
in-reply-to:in-reply-to:references:references;
bh=qzMCgf1GNsBFnLPl/yLhHUq6PAVZXrNMF79VL0ptkTY=;
b=ZCen9klryfdICjfDvXz6zl1mUnjnjKIcS+IN6g2CNgANvcloz8d/D5ERbw7uTNuQO8mSct
oYyXVE82okLwMfXSBKw7WjXERQtzN4eu5bFyu+RxYS2gU3XAgUKF0VChAC5HqIvUn/hhcZ
JIudiw4kIOfY3C414BADDnb4B7FhlBk=
Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com
[209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id
us-mta-489-gxuZzDa4NtGPqBZR6oI7LQ-1; Tue, 19 Jan 2021 16:27:59 -0500
X-MC-Unique: gxuZzDa4NtGPqBZR6oI7LQ-1
Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com
[10.5.11.14])
(using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))
(No client certificate requested)
by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 676DE59;
Tue, 19 Jan 2021 21:27:58 +0000 (UTC)
Received: from max-t490s.redhat.com (unknown [10.36.110.29])
by smtp.corp.redhat.com (Postfix) with ESMTP id D9FD65D9DD;
Tue, 19 Jan 2021 21:27:56 +0000 (UTC)
From: Maxime Coquelin <maxime.coquelin@redhat.com>
To: dev@dpdk.org, chenbo.xia@intel.com, olivier.matz@6wind.com,
amorenoz@redhat.com, david.marchand@redhat.com
Cc: Maxime Coquelin <maxime.coquelin@redhat.com>
Date: Tue, 19 Jan 2021 22:24:56 +0100
Message-Id: <20210119212507.1043636-34-maxime.coquelin@redhat.com>
In-Reply-To: <20210119212507.1043636-1-maxime.coquelin@redhat.com>
References: <20210119212507.1043636-1-maxime.coquelin@redhat.com>
MIME-Version: 1.0
X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14
Authentication-Results: relay.mimecast.com;
auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=maxime.coquelin@redhat.com
X-Mimecast-Spam-Score: 0
X-Mimecast-Originator: redhat.com
Content-Transfer-Encoding: 8bit
Content-Type: text/plain; charset="US-ASCII"
Subject: [dpdk-dev] [PATCH v2 33/44] net/virtio: add Virtio-user status ops
X-BeenThere: dev@dpdk.org
X-Mailman-Version: 2.1.29
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 patch introduces new callbacks to
get and set the device status.
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
---
drivers/net/virtio/virtio_user/vhost.h | 2 +
drivers/net/virtio/virtio_user/vhost_kernel.c | 14 ++
drivers/net/virtio/virtio_user/vhost_user.c | 121 +++++++++++++-----
drivers/net/virtio/virtio_user/vhost_vdpa.c | 16 ++-
.../net/virtio/virtio_user/virtio_user_dev.c | 42 ++----
5 files changed, 129 insertions(+), 66 deletions(-)
diff --git a/drivers/net/virtio/virtio_user/vhost.h b/drivers/net/virtio/virtio_user/vhost.h
index 19040dfdc2..c896f0836d 100644
--- a/drivers/net/virtio/virtio_user/vhost.h
+++ b/drivers/net/virtio/virtio_user/vhost.h
@@ -121,6 +121,8 @@ struct virtio_user_backend_ops {
int (*set_vring_call)(struct virtio_user_dev *dev, struct vhost_vring_file *file);
int (*set_vring_kick)(struct virtio_user_dev *dev, struct vhost_vring_file *file);
int (*set_vring_addr)(struct virtio_user_dev *dev, struct vhost_vring_addr *addr);
+ int (*get_status)(struct virtio_user_dev *dev, uint8_t *status);
+ int (*set_status)(struct virtio_user_dev *dev, uint8_t status);
int (*send_request)(struct virtio_user_dev *dev,
enum vhost_user_request req,
void *arg);
diff --git a/drivers/net/virtio/virtio_user/vhost_kernel.c b/drivers/net/virtio/virtio_user/vhost_kernel.c
index 566f42f0cb..d85358fc34 100644
--- a/drivers/net/virtio/virtio_user/vhost_kernel.c
+++ b/drivers/net/virtio/virtio_user/vhost_kernel.c
@@ -316,6 +316,18 @@ vhost_kernel_set_vring_addr(struct virtio_user_dev *dev, struct vhost_vring_addr
return 0;
}
+static int
+vhost_kernel_get_status(struct virtio_user_dev *dev __rte_unused, uint8_t *status __rte_unused)
+{
+ return -ENOTSUP;
+}
+
+static int
+vhost_kernel_set_status(struct virtio_user_dev *dev __rte_unused, uint8_t status __rte_unused)
+{
+ return -ENOTSUP;
+}
+
static uint64_t vhost_req_user_to_kernel[] = {
[VHOST_USER_RESET_OWNER] = VHOST_RESET_OWNER,
};
@@ -487,6 +499,8 @@ struct virtio_user_backend_ops virtio_ops_kernel = {
.set_vring_call = vhost_kernel_set_vring_call,
.set_vring_kick = vhost_kernel_set_vring_kick,
.set_vring_addr = vhost_kernel_set_vring_addr,
+ .get_status = vhost_kernel_get_status,
+ .set_status = vhost_kernel_set_status,
.send_request = vhost_kernel_send_request,
.enable_qp = vhost_kernel_enable_queue_pair
};
diff --git a/drivers/net/virtio/virtio_user/vhost_user.c b/drivers/net/virtio/virtio_user/vhost_user.c
index ca70a8a4e7..cb0cd1cea8 100644
--- a/drivers/net/virtio/virtio_user/vhost_user.c
+++ b/drivers/net/virtio/virtio_user/vhost_user.c
@@ -559,13 +559,100 @@ vhost_user_set_vring_addr(struct virtio_user_dev *dev, struct vhost_vring_addr *
return 0;
}
+static int
+vhost_user_get_status(struct virtio_user_dev *dev, uint8_t *status)
+{
+ int ret;
+ struct vhost_user_msg msg = {
+ .request = VHOST_USER_GET_STATUS,
+ .flags = VHOST_USER_VERSION,
+ };
+
+ /*
+ * If features have not been negotiated, we don't know if the backend
+ * supports protocol features
+ */
+ if (!(dev->status & VIRTIO_CONFIG_STATUS_FEATURES_OK))
+ return -ENOTSUP;
+
+ /* Status protocol feature requires protocol features support */
+ if (!(dev->device_features & (1ULL << VHOST_USER_F_PROTOCOL_FEATURES)))
+ return -ENOTSUP;
+
+ if (!(dev->protocol_features & (1ULL << VHOST_USER_PROTOCOL_F_STATUS)))
+ return -ENOTSUP;
+
+ ret = vhost_user_write(dev->vhostfd, &msg, NULL, 0);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "Failed to send request");
+ goto err;
+ }
+
+ ret = vhost_user_read(dev->vhostfd, &msg);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "Failed to recv request");
+ goto err;
+ }
+
+ if (msg.request != VHOST_USER_GET_STATUS) {
+ PMD_DRV_LOG(ERR, "Unexpected request type (%d)", msg.request);
+ goto err;
+ }
+
+ if (msg.size != sizeof(msg.payload.u64)) {
+ PMD_DRV_LOG(ERR, "Unexpected payload size (%u)", msg.size);
+ goto err;
+ }
+
+ *status = (uint8_t)msg.payload.u64;
+
+ return 0;
+err:
+ PMD_DRV_LOG(ERR, "Failed to get device status");
+ return -1;
+}
+
+static int
+vhost_user_set_status(struct virtio_user_dev *dev, uint8_t status)
+{
+ int ret;
+ struct vhost_user_msg msg = {
+ .request = VHOST_USER_SET_STATUS,
+ .flags = VHOST_USER_VERSION,
+ .size = sizeof(msg.payload.u64),
+ .payload.u64 = status,
+ };
+
+ /*
+ * If features have not been negotiated, we don't know if the backend
+ * supports protocol features
+ */
+ if (!(dev->status & VIRTIO_CONFIG_STATUS_FEATURES_OK))
+ return -ENOTSUP;
+
+ /* Status protocol feature requires protocol features support */
+ if (!(dev->device_features & (1ULL << VHOST_USER_F_PROTOCOL_FEATURES)))
+ return -ENOTSUP;
+
+ if (!(dev->protocol_features & (1ULL << VHOST_USER_PROTOCOL_F_STATUS)))
+ return -ENOTSUP;
+
+ if (dev->protocol_features & (1ULL << VHOST_USER_PROTOCOL_F_REPLY_ACK))
+ msg.flags |= VHOST_USER_NEED_REPLY_MASK;
+
+ ret = vhost_user_write(dev->vhostfd, &msg, NULL, 0);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "Failed to send get status request");
+ return -1;
+ }
+
+ return vhost_user_check_reply_ack(dev, &msg);
+}
static struct vhost_user_msg m;
const char * const vhost_msg_strings[] = {
[VHOST_USER_RESET_OWNER] = "VHOST_RESET_OWNER",
- [VHOST_USER_SET_STATUS] = "VHOST_SET_STATUS",
- [VHOST_USER_GET_STATUS] = "VHOST_GET_STATUS",
};
static int
@@ -576,7 +663,6 @@ vhost_user_sock(struct virtio_user_dev *dev,
struct vhost_user_msg msg;
struct vhost_vring_file *file = 0;
int need_reply = 0;
- int has_reply_ack = 0;
int fds[VHOST_MEMORY_MAX_NREGIONS];
int fd_num = 0;
int vhostfd = dev->vhostfd;
@@ -588,31 +674,11 @@ vhost_user_sock(struct virtio_user_dev *dev,
if (dev->is_server && vhostfd < 0)
return -1;
- if (dev->protocol_features & (1ULL << VHOST_USER_PROTOCOL_F_REPLY_ACK))
- has_reply_ack = 1;
-
msg.request = req;
msg.flags = VHOST_USER_VERSION;
msg.size = 0;
switch (req) {
- case VHOST_USER_GET_STATUS:
- if (!(dev->status & VIRTIO_CONFIG_STATUS_FEATURES_OK) ||
- (!(dev->protocol_features &
- (1ULL << VHOST_USER_PROTOCOL_F_STATUS))))
- return -ENOTSUP;
- need_reply = 1;
- break;
-
- case VHOST_USER_SET_STATUS:
- if (!(dev->status & VIRTIO_CONFIG_STATUS_FEATURES_OK) ||
- (!(dev->protocol_features &
- (1ULL << VHOST_USER_PROTOCOL_F_STATUS))))
- return -ENOTSUP;
-
- if (has_reply_ack)
- msg.flags |= VHOST_USER_NEED_REPLY_MASK;
- /* Fallthrough */
case VHOST_USER_SET_LOG_BASE:
msg.payload.u64 = *((__u64 *)arg);
msg.size = sizeof(m.payload.u64);
@@ -665,13 +731,6 @@ vhost_user_sock(struct virtio_user_dev *dev,
}
switch (req) {
- case VHOST_USER_GET_STATUS:
- if (msg.size != sizeof(m.payload.u64)) {
- PMD_DRV_LOG(ERR, "Received bad msg size");
- return -1;
- }
- *((__u64 *)arg) = msg.payload.u64;
- break;
default:
/* Reply-ack handling */
if (msg.size != sizeof(m.payload.u64)) {
@@ -804,6 +863,8 @@ struct virtio_user_backend_ops virtio_ops_user = {
.set_vring_call = vhost_user_set_vring_call,
.set_vring_kick = vhost_user_set_vring_kick,
.set_vring_addr = vhost_user_set_vring_addr,
+ .get_status = vhost_user_get_status,
+ .set_status = vhost_user_set_status,
.send_request = vhost_user_sock,
.enable_qp = vhost_user_enable_queue_pair
};
diff --git a/drivers/net/virtio/virtio_user/vhost_vdpa.c b/drivers/net/virtio/virtio_user/vhost_vdpa.c
index 1ec6bb26f2..8ebc679f1b 100644
--- a/drivers/net/virtio/virtio_user/vhost_vdpa.c
+++ b/drivers/net/virtio/virtio_user/vhost_vdpa.c
@@ -38,8 +38,6 @@
static uint64_t vhost_req_user_to_vdpa[] = {
[VHOST_USER_RESET_OWNER] = VHOST_RESET_OWNER,
- [VHOST_USER_SET_STATUS] = VHOST_VDPA_SET_STATUS,
- [VHOST_USER_GET_STATUS] = VHOST_VDPA_GET_STATUS,
};
/* no alignment requirement */
@@ -379,6 +377,18 @@ vhost_vdpa_set_vring_addr(struct virtio_user_dev *dev, struct vhost_vring_addr *
return vhost_vdpa_ioctl(dev->vhostfd, VHOST_SET_VRING_ADDR, addr);
}
+static int
+vhost_vdpa_get_status(struct virtio_user_dev *dev, uint8_t *status)
+{
+ return vhost_vdpa_ioctl(dev->vhostfd, VHOST_VDPA_GET_STATUS, status);
+}
+
+static int
+vhost_vdpa_set_status(struct virtio_user_dev *dev, uint8_t status)
+{
+ return vhost_vdpa_ioctl(dev->vhostfd, VHOST_VDPA_SET_STATUS, &status);
+}
+
/* with below features, vhost vdpa does not need to do the checksum and TSO,
* these info will be passed to virtio_user through virtio net header.
*/
@@ -490,6 +500,8 @@ struct virtio_user_backend_ops virtio_ops_vdpa = {
.set_vring_call = vhost_vdpa_set_vring_call,
.set_vring_kick = vhost_vdpa_set_vring_kick,
.set_vring_addr = vhost_vdpa_set_vring_addr,
+ .get_status = vhost_vdpa_get_status,
+ .set_status = vhost_vdpa_set_status,
.send_request = vhost_vdpa_send_request,
.enable_qp = vhost_vdpa_enable_queue_pair,
.dma_map = vhost_vdpa_dma_map_batch,
diff --git a/drivers/net/virtio/virtio_user/virtio_user_dev.c b/drivers/net/virtio/virtio_user/virtio_user_dev.c
index 7e365d0570..33a25f4684 100644
--- a/drivers/net/virtio/virtio_user/virtio_user_dev.c
+++ b/drivers/net/virtio/virtio_user/virtio_user_dev.c
@@ -814,21 +814,12 @@ int
virtio_user_dev_set_status(struct virtio_user_dev *dev, uint8_t status)
{
int ret;
- uint64_t arg = status;
pthread_mutex_lock(&dev->mutex);
dev->status = status;
- if (dev->backend_type == VIRTIO_USER_BACKEND_VHOST_USER)
- ret = dev->ops->send_request(dev,
- VHOST_USER_SET_STATUS, &arg);
- else if (dev->backend_type == VIRTIO_USER_BACKEND_VHOST_VDPA)
- ret = dev->ops->send_request(dev,
- VHOST_USER_SET_STATUS, &status);
- else
- ret = -ENOTSUP;
-
+ ret = dev->ops->set_status(dev, status);
if (ret && ret != -ENOTSUP) {
- PMD_INIT_LOG(ERR, "VHOST_USER_SET_STATUS failed (%d): %s", ret,
+ PMD_INIT_LOG(ERR, "Virtio-user set status failed (%d): %s", ret,
strerror(errno));
}
@@ -839,29 +830,13 @@ virtio_user_dev_set_status(struct virtio_user_dev *dev, uint8_t status)
int
virtio_user_dev_update_status(struct virtio_user_dev *dev)
{
- uint64_t ret;
+ int ret;
uint8_t status;
- int err;
pthread_mutex_lock(&dev->mutex);
- if (dev->backend_type == VIRTIO_USER_BACKEND_VHOST_USER) {
- err = dev->ops->send_request(dev, VHOST_USER_GET_STATUS, &ret);
- if (!err && ret > UINT8_MAX) {
- PMD_INIT_LOG(ERR, "Invalid VHOST_USER_GET_STATUS "
- "response 0x%" PRIx64 "\n", ret);
- err = -1;
- goto error;
- }
- status = ret;
- } else if (dev->backend_type == VIRTIO_USER_BACKEND_VHOST_VDPA) {
- err = dev->ops->send_request(dev, VHOST_USER_GET_STATUS,
- &status);
- } else {
- err = -ENOTSUP;
- }
-
- if (!err) {
+ ret = dev->ops->get_status(dev, &status);
+ if (!ret) {
dev->status = status;
PMD_INIT_LOG(DEBUG, "Updated Device Status(0x%08x):\n"
"\t-RESET: %u\n"
@@ -879,12 +854,11 @@ virtio_user_dev_update_status(struct virtio_user_dev *dev)
!!(dev->status & VIRTIO_CONFIG_STATUS_FEATURES_OK),
!!(dev->status & VIRTIO_CONFIG_STATUS_DEV_NEED_RESET),
!!(dev->status & VIRTIO_CONFIG_STATUS_FAILED));
- } else if (err != -ENOTSUP) {
- PMD_INIT_LOG(ERR, "VHOST_USER_GET_STATUS failed (%d): %s", err,
+ } else if (ret != -ENOTSUP) {
+ PMD_INIT_LOG(ERR, "Virtio-user get status failed (%d): %s", ret,
strerror(errno));
}
-error:
pthread_mutex_unlock(&dev->mutex);
- return err;
+ return ret;
}
--
2.29.2