Signed-off-by: Jianfeng Tan <jianfeng....@intel.com>
---
drivers/net/virtio/virtio_ethdev.c | 17 ++++++++++++++--
drivers/net/virtio/virtio_user/virtio_user_dev.c | 25 +++++++++++++++++++++++-
drivers/net/virtio/virtio_user/virtio_user_dev.h | 2 +-
drivers/net/virtio/virtio_user_ethdev.c | 12 +++++++++++-
4 files changed, 51 insertions(+), 5 deletions(-)
diff --git a/drivers/net/virtio/virtio_ethdev.c
b/drivers/net/virtio/virtio_ethdev.c
index 4dc03b9..5d80d1a 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -1264,6 +1264,10 @@ virtio_configure_intr(struct rte_eth_dev *dev)
{
struct virtio_hw *hw = dev->data->dev_private;
+
+#ifdef RTE_VIRTIO_USER
+ if (!hw->virtio_user_dev) {
+#endif
if (!rte_intr_cap_multiple(dev->intr_handle)) {
PMD_INIT_LOG(ERR, "Multiple intr vector not supported");
return -ENOTSUP;
@@ -1273,6 +1277,9 @@ virtio_configure_intr(struct rte_eth_dev *dev)
PMD_INIT_LOG(ERR, "Fail to create eventfd");
return -1;
}
+#ifdef RTE_VIRTIO_USER
+ }
+#endif
if (!dev->intr_handle->intr_vec) {
dev->intr_handle->intr_vec =
@@ -1293,6 +1300,9 @@ virtio_configure_intr(struct rte_eth_dev *dev)
virtio_interrupt_handler,
dev);
+#ifdef RTE_VIRTIO_USER
+ if (!hw->virtio_user_dev) {
+#endif
/* DO NOT try to remove this! This function will enable msix, or QEMU
* will encounter SIGSEGV when DRIVER_OK is sent.
* And for legacy devices, this should be done before queue/vec binding
@@ -1303,6 +1313,9 @@ virtio_configure_intr(struct rte_eth_dev *dev)
PMD_DRV_LOG(ERR, "interrupt enable failed");
return -1;
}
+#ifdef RTE_VIRTIO_USER
+ }
+#endif
if (virtio_queues_bind_intr(dev) < 0) {
PMD_INIT_LOG(ERR, "Failed to bind queue/interrupt");
@@ -1409,6 +1422,8 @@ virtio_init_device(struct rte_eth_dev *eth_dev, uint64_t
req_features)
if (ret < 0)
return ret;
+ vtpci_reinit_complete(hw);
+
if (eth_dev->data->dev_conf.intr_conf.rxq) {
if (virtio_configure_intr(eth_dev) < 0) {
PMD_INIT_LOG(ERR, "failed to configure interrupt");
@@ -1416,8 +1431,6 @@ virtio_init_device(struct rte_eth_dev *eth_dev, uint64_t
req_features)
}
}
- vtpci_reinit_complete(hw);
-
if (pci_dev)
PMD_INIT_LOG(DEBUG, "port %d vendorID=0x%x deviceID=0x%x",
eth_dev->data->port_id, pci_dev->id.vendor_id,
diff --git a/drivers/net/virtio/virtio_user/virtio_user_dev.c
b/drivers/net/virtio/virtio_user/virtio_user_dev.c
index 21ed00d..9777d6b 100644
--- a/drivers/net/virtio/virtio_user/virtio_user_dev.c
+++ b/drivers/net/virtio/virtio_user/virtio_user_dev.c
@@ -140,8 +140,28 @@ virtio_user_queue_setup(struct virtio_user_dev *dev,
return 0;
}
+static void
+virtio_user_fill_intr_handle(struct virtio_user_dev *dev, uint8_t portid)
+{
+ uint32_t i;
+ struct rte_eth_dev *eth_dev = &rte_eth_devices[portid];
+
+ if (!eth_dev->intr_handle) {
+ eth_dev->intr_handle = malloc(sizeof(*eth_dev->intr_handle));
+ if (!eth_dev->intr_handle)
+ return;
+ memset(eth_dev->intr_handle, 0, sizeof(*eth_dev->intr_handle));
+ }
+
+ for (i = 0; i < dev->max_queue_pairs; ++i)
+ eth_dev->intr_handle->efds[i] = dev->callfds[i];
+ eth_dev->intr_handle->nb_efd = dev->max_queue_pairs;
+ eth_dev->intr_handle->max_intr = dev->max_queue_pairs + 1;
+ eth_dev->intr_handle->type = RTE_INTR_HANDLE_VDEV;
+}
+
int
-virtio_user_start_device(struct virtio_user_dev *dev)
+virtio_user_start_device(struct virtio_user_dev *dev, uint8_t portid)
{
uint64_t features;
int ret;
@@ -175,6 +195,9 @@ virtio_user_start_device(struct virtio_user_dev *dev)
*/
dev->ops->enable_qp(dev, 0, 1);
+ /* Step 5: prepare for interrupt mode */
+ virtio_user_fill_intr_handle(dev, portid);
+
return 0;
error:
/* TODO: free resource here or caller to check */
diff --git a/drivers/net/virtio/virtio_user/virtio_user_dev.h
b/drivers/net/virtio/virtio_user/virtio_user_dev.h
index 0d39f40..3b529f0 100644
--- a/drivers/net/virtio/virtio_user/virtio_user_dev.h
+++ b/drivers/net/virtio/virtio_user/virtio_user_dev.h
@@ -66,7 +66,7 @@ struct virtio_user_dev {
struct virtio_user_backend_ops *ops;
};
-int virtio_user_start_device(struct virtio_user_dev *dev);
+int virtio_user_start_device(struct virtio_user_dev *dev, uint8_t portid);
int virtio_user_stop_device(struct virtio_user_dev *dev);
int virtio_user_dev_init(struct virtio_user_dev *dev, char *path, int queues,
int cq, int queue_size, const char *mac);
diff --git a/drivers/net/virtio/virtio_user_ethdev.c
b/drivers/net/virtio/virtio_user_ethdev.c
index 0b226ac..fa79419 100644
--- a/drivers/net/virtio/virtio_user_ethdev.c
+++ b/drivers/net/virtio/virtio_user_ethdev.c
@@ -101,7 +101,7 @@ virtio_user_set_status(struct virtio_hw *hw, uint8_t status)
struct virtio_user_dev *dev = virtio_user_get_dev(hw);
if (status & VIRTIO_CONFIG_STATUS_DRIVER_OK)
- virtio_user_start_device(dev);
+ virtio_user_start_device(dev, hw->port_id);
else if (status == VIRTIO_CONFIG_STATUS_RESET)
virtio_user_reset(hw);
dev->status = status;
@@ -148,6 +148,15 @@ virtio_user_set_config_irq(struct virtio_hw *hw
__rte_unused,
return VIRTIO_MSI_NO_VECTOR;
}
+static uint16_t
+virtio_user_set_queue_irq(struct virtio_hw *hw __rte_unused,
+ struct virtqueue *vq __rte_unused,
+ uint16_t vec)
+{
+ /* pretend we have done that */
+ return vec;
+}
+
/* This function is to get the queue size, aka, number of descs, of a specified
* queue. Different with the VHOST_USER_GET_QUEUE_NUM, which is used to get the
* max supported queues.
@@ -226,6 +235,7 @@ const struct virtio_pci_ops virtio_user_ops = {
.set_features = virtio_user_set_features,
.get_isr = virtio_user_get_isr,
.set_config_irq = virtio_user_set_config_irq,
+ .set_queue_irq = virtio_user_set_queue_irq,
.get_queue_num = virtio_user_get_queue_num,
.setup_queue = virtio_user_setup_queue,
.del_queue = virtio_user_del_queue,
--
2.7.4
