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From: zhiyong.yang@intel.com
To: dev@dpdk.org
Cc: maxime.coquelin@redhat.com, lei.a.yao@intel.com, stable@dpdk.org,
	Zhiyong Yang <zhiyong.yang@intel.com>
Subject: [PATCH] net/virtio-user: fix multiple queues fail in server mode
Date: Wed,  9 May 2018 17:49:36 +0800	[thread overview]
Message-ID: <20180509094936.62796-1-zhiyong.yang@intel.com> (raw)

This patch fixes multiple queues failure when virtio-user works in
server mode.

Fixes: bd8f50a45d0f ("net/virtio-user: support server mode")
Cc: stable@dpdk.org
Signed-off-by: Zhiyong Yang <zhiyong.yang@intel.com>
---
 drivers/net/virtio/virtio_user/vhost_user.c      | 3 +++
 drivers/net/virtio/virtio_user/virtio_user_dev.c | 9 +++++++++
 2 files changed, 12 insertions(+)

diff --git a/drivers/net/virtio/virtio_user/vhost_user.c b/drivers/net/virtio/virtio_user/vhost_user.c
index a6df97a00..a9e53d7b5 100644
--- a/drivers/net/virtio/virtio_user/vhost_user.c
+++ b/drivers/net/virtio/virtio_user/vhost_user.c
@@ -263,6 +263,9 @@ vhost_user_sock(struct virtio_user_dev *dev,
 
 	PMD_DRV_LOG(INFO, "%s", vhost_msg_strings[req]);
 
+	if (vhostfd < 0)
+		return -1;
+
 	msg.request = req;
 	msg.flags = VHOST_USER_VERSION;
 	msg.size = 0;
diff --git a/drivers/net/virtio/virtio_user/virtio_user_dev.c b/drivers/net/virtio/virtio_user/virtio_user_dev.c
index 38b8bc90d..e988dc3f4 100644
--- a/drivers/net/virtio/virtio_user/virtio_user_dev.c
+++ b/drivers/net/virtio/virtio_user/virtio_user_dev.c
@@ -126,6 +126,10 @@ virtio_user_start_device(struct virtio_user_dev *dev)
 	features &= ~(1ull << VIRTIO_NET_F_MAC);
 	/* Strip VIRTIO_NET_F_CTRL_VQ, as devices do not really need to know */
 	features &= ~(1ull << VIRTIO_NET_F_CTRL_VQ);
+	/* Also disable features which depend on VIRTIO_NET_F_CTRL_VQ */
+	features &= ~(1ull << VIRTIO_NET_F_CTRL_RX);
+	features &= ~(1ull << VIRTIO_NET_F_CTRL_VLAN);
+	features &= ~(1ull << VIRTIO_NET_F_CTRL_MAC_ADDR);
 	features &= ~(1ull << VIRTIO_NET_F_STATUS);
 	ret = dev->ops->send_request(dev, VHOST_USER_SET_FEATURES, &features);
 	if (ret < 0)
@@ -488,6 +492,11 @@ virtio_user_handle_ctrl_msg(struct virtio_user_dev *dev, struct vring *vring,
 		queues = *(uint16_t *)(uintptr_t)vring->desc[idx_data].addr;
 		status = virtio_user_handle_mq(dev, queues);
 	}
+	/* Server mode can't enable queue pairs if vhostfd is not connected,
+	 * we suppose that status always returns 0 in this case.
+	 * /
+	if (dev->is_server && dev->vhostfd < 0)
+		status = 0;
 
 	/* Update status */
 	*(virtio_net_ctrl_ack *)(uintptr_t)vring->desc[idx_status].addr = status;
-- 
2.14.3

             reply	other threads:[~2018-05-09  9:49 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-09  9:49 zhiyong.yang [this message]
2018-05-09 14:48 ` [dpdk-stable] [PATCH] net/virtio-user: fix multiple queues fail in server mode Ferruh Yigit
2018-05-10  0:48   ` Tiwei Bie
2018-05-10  1:28   ` Yang, Zhiyong
2018-05-10  1:38     ` Yang, Zhiyong
2018-05-10  2:47 ` Tiwei Bie
2018-05-10  3:04   ` Yang, Zhiyong
2018-05-10  4:42     ` Tiwei Bie
2018-05-10  9:36 ` [PATCH v2] " zhiyong.yang
2018-05-10 10:23   ` Tiwei Bie
2018-05-10 14:01     ` Yang, Zhiyong
2018-05-10 14:19       ` Tiwei Bie
2018-05-11  2:12   ` [PATCH v3] " zhiyong.yang
2018-05-11  2:49     ` Tiwei Bie
2018-05-11  3:01       ` Yang, Zhiyong
2018-05-11  3:31     ` [PATCH v4] " zhiyong.yang
2018-05-11 11:33       ` Ferruh Yigit

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