From: Yuanhan Liu <yuanhan.liu@linux.intel.com>
To: dev@dpdk.org
Cc: "Michael S. Tsirkin" <mst@redhat.com>, hangchun.ouyang@hotmail.com
Subject: [dpdk-dev] [PATCH v5 07/12] virtio: resolve for control queue
Date: Fri, 18 Sep 2015 23:01:08 +0800 [thread overview]
Message-ID: <1442588473-13122-8-git-send-email-yuanhan.liu@linux.intel.com> (raw)
In-Reply-To: <1442588473-13122-1-git-send-email-yuanhan.liu@linux.intel.com>
From: Changchun Ouyang <changchun.ouyang@intel.com>
Fix the max virtio queue pair read issue.
Control queue can't work for vhost-user mulitple queue mode,
so introduce a counter to void the dead loop when polling
the control queue.
Signed-off-by: Changchun Ouyang <changchun.ouyang@intel.com>
Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
---
drivers/net/virtio/virtio_ethdev.c | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index 465d3cd..b2f4120 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -1162,7 +1162,6 @@ eth_virtio_dev_init(struct rte_eth_dev *eth_dev)
struct virtio_hw *hw = eth_dev->data->dev_private;
struct virtio_net_config *config;
struct virtio_net_config local_config;
- uint32_t offset_conf = sizeof(config->mac);
struct rte_pci_device *pci_dev;
RTE_BUILD_BUG_ON(RTE_PKTMBUF_HEADROOM < sizeof(struct virtio_net_hdr));
@@ -1222,7 +1221,9 @@ eth_virtio_dev_init(struct rte_eth_dev *eth_dev)
config = &local_config;
if (vtpci_with_feature(hw, VIRTIO_NET_F_STATUS)) {
- offset_conf += sizeof(config->status);
+ vtpci_read_dev_config(hw,
+ offsetof(struct virtio_net_config, status),
+ &config->status, sizeof(config->status));
} else {
PMD_INIT_LOG(DEBUG,
"VIRTIO_NET_F_STATUS is not supported");
@@ -1230,15 +1231,16 @@ eth_virtio_dev_init(struct rte_eth_dev *eth_dev)
}
if (vtpci_with_feature(hw, VIRTIO_NET_F_MQ)) {
- offset_conf += sizeof(config->max_virtqueue_pairs);
+ vtpci_read_dev_config(hw,
+ offsetof(struct virtio_net_config, max_virtqueue_pairs),
+ &config->max_virtqueue_pairs,
+ sizeof(config->max_virtqueue_pairs));
} else {
PMD_INIT_LOG(DEBUG,
"VIRTIO_NET_F_MQ is not supported");
config->max_virtqueue_pairs = 1;
}
- vtpci_read_dev_config(hw, 0, (uint8_t *)config, offset_conf);
-
hw->max_rx_queues =
(VIRTIO_MAX_RX_QUEUES < config->max_virtqueue_pairs) ?
VIRTIO_MAX_RX_QUEUES : config->max_virtqueue_pairs;
--
1.9.0
next prev parent reply other threads:[~2015-09-18 14:59 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-18 15:01 [dpdk-dev] [PATCH v5 00/12] vhost-user multiple queues enabling Yuanhan Liu
2015-09-18 15:01 ` [dpdk-dev] [PATCH v5 01/12] vhost-user: add protocol features support Yuanhan Liu
2015-09-18 15:01 ` [dpdk-dev] [PATCH v5 02/12] vhost-user: add VHOST_USER_GET_QUEUE_NUM message Yuanhan Liu
2015-09-18 15:01 ` [dpdk-dev] [PATCH v5 03/12] vhost: vring queue setup for multiple queue support Yuanhan Liu
2015-09-18 15:01 ` [dpdk-dev] [PATCH v5 04/12] vhost: rxtx: prepare work " Yuanhan Liu
2015-09-18 15:01 ` [dpdk-dev] [PATCH v5 05/12] vhost: add VHOST_USER_SET_VRING_ENABLE message Yuanhan Liu
2015-09-18 15:01 ` [dpdk-dev] [PATCH v5 06/12] vhost-user: handle VHOST_USER_RESET_OWNER correctly Yuanhan Liu
2015-09-18 15:01 ` Yuanhan Liu [this message]
2015-09-18 15:01 ` [dpdk-dev] [PATCH v5 08/12] vhost-user: enable vhost-user multiple queue Yuanhan Liu
2015-09-18 15:01 ` [dpdk-dev] [PATCH v5 09/12] vhost: add API bind a virtq to a specific core Yuanhan Liu
2015-09-18 15:01 ` [dpdk-dev] [PATCH v5 10/12] ixgbe: support VMDq RSS in non-SRIOV environment Yuanhan Liu
2015-09-18 15:01 ` [dpdk-dev] [PATCH v5 11/12] examples/vhost: demonstrate the usage of vhost mq feature Yuanhan Liu
2015-09-18 15:01 ` [dpdk-dev] [PATCH v5 12/12] examples/vhost: add per queue stats Yuanhan Liu
2015-09-18 15:07 ` [dpdk-dev] [PATCH v5 00/12] vhost-user multiple queues enabling Yuanhan Liu
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