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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>
Subject: [dpdk-dev] [PATCH v4 05/44] net/virtio: refactor virtio-user device
Date: Tue, 26 Jan 2021 11:16:00 +0100
Message-ID: <20210126101639.250481-6-maxime.coquelin@redhat.com> (raw)
In-Reply-To: <20210126101639.250481-1-maxime.coquelin@redhat.com>

This patch moves the virtio_hw structure into the virtio_user_dev
structure, with the goal of making virtio_hw bus-agnostic.

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
---
 drivers/net/virtio/virtio_ethdev.c            |  2 +-
 drivers/net/virtio/virtio_pci.h               |  1 -
 .../net/virtio/virtio_user/virtio_user_dev.h  |  1 +
 drivers/net/virtio/virtio_user_ethdev.c       | 64 ++++++++-----------
 4 files changed, 29 insertions(+), 39 deletions(-)

diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index 0ba10c274a..c8a01a46df 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -747,7 +747,7 @@ virtio_dev_close(struct rte_eth_dev *dev)
 
 #ifdef RTE_VIRTIO_USER
 	if (hw->bus_type == VIRTIO_BUS_USER)
-		virtio_user_dev_uninit(hw->virtio_user_dev);
+		virtio_user_dev_uninit(dev->data->dev_private);
 	else
 #endif
 	if (dev->device) {
diff --git a/drivers/net/virtio/virtio_pci.h b/drivers/net/virtio/virtio_pci.h
index 6388f0a74d..b35a596169 100644
--- a/drivers/net/virtio/virtio_pci.h
+++ b/drivers/net/virtio/virtio_pci.h
@@ -277,7 +277,6 @@ struct virtio_hw {
 	uint16_t    *notify_base;
 	struct virtio_pci_common_cfg *common_cfg;
 	struct virtio_net_config *dev_cfg;
-	void	    *virtio_user_dev;
 	/*
 	 * App management thread and virtio interrupt handler thread
 	 * both can change device state, this lock is meant to avoid
diff --git a/drivers/net/virtio/virtio_user/virtio_user_dev.h b/drivers/net/virtio/virtio_user/virtio_user_dev.h
index 3b5b6bc3ae..b3776cc7a0 100644
--- a/drivers/net/virtio/virtio_user/virtio_user_dev.h
+++ b/drivers/net/virtio/virtio_user/virtio_user_dev.h
@@ -24,6 +24,7 @@ struct virtio_user_queue {
 };
 
 struct virtio_user_dev {
+	struct virtio_hw hw;
 	enum virtio_user_backend_type backend_type;
 	/* for vhost_user backend */
 	int		vhostfd;
diff --git a/drivers/net/virtio/virtio_user_ethdev.c b/drivers/net/virtio/virtio_user_ethdev.c
index 441721b6ca..620ecb126c 100644
--- a/drivers/net/virtio/virtio_user_ethdev.c
+++ b/drivers/net/virtio/virtio_user_ethdev.c
@@ -26,13 +26,13 @@
 #include "virtio_user/virtio_user_dev.h"
 #include "virtio_user/vhost.h"
 
-#define virtio_user_get_dev(hw) \
-	((struct virtio_user_dev *)(hw)->virtio_user_dev)
+#define virtio_user_get_dev(hwp) container_of(hwp, struct virtio_user_dev, hw)
 
 static void
-virtio_user_reset_queues_packed(struct rte_eth_dev *dev)
+virtio_user_reset_queues_packed(struct rte_eth_dev *eth_dev)
 {
-	struct virtio_hw *hw = dev->data->dev_private;
+	struct virtio_user_dev *dev = eth_dev->data->dev_private;
+	struct virtio_hw *hw = &dev->hw;
 	struct virtnet_rx *rxvq;
 	struct virtnet_tx *txvq;
 	uint16_t i;
@@ -48,14 +48,14 @@ virtio_user_reset_queues_packed(struct rte_eth_dev *dev)
 	rte_delay_ms(1);
 
 	/* Vring reset for each Tx queue and Rx queue. */
-	for (i = 0; i < dev->data->nb_rx_queues; i++) {
-		rxvq = dev->data->rx_queues[i];
+	for (i = 0; i < eth_dev->data->nb_rx_queues; i++) {
+		rxvq = eth_dev->data->rx_queues[i];
 		virtqueue_rxvq_reset_packed(rxvq->vq);
-		virtio_dev_rx_queue_setup_finish(dev, i);
+		virtio_dev_rx_queue_setup_finish(eth_dev, i);
 	}
 
-	for (i = 0; i < dev->data->nb_tx_queues; i++) {
-		txvq = dev->data->tx_queues[i];
+	for (i = 0; i < eth_dev->data->nb_tx_queues; i++) {
+		txvq = eth_dev->data->tx_queues[i];
 		virtqueue_txvq_reset_packed(txvq->vq);
 	}
 
@@ -69,7 +69,7 @@ virtio_user_server_reconnect(struct virtio_user_dev *dev)
 {
 	int ret, connectfd, old_status;
 	struct rte_eth_dev *eth_dev = &rte_eth_devices[dev->port_id];
-	struct virtio_hw *hw = eth_dev->data->dev_private;
+	struct virtio_hw *hw = &dev->hw;
 	uint64_t protocol_features;
 
 	connectfd = accept(dev->listenfd, NULL, NULL);
@@ -605,21 +605,15 @@ virtio_user_eth_dev_alloc(struct rte_vdev_device *vdev)
 	struct virtio_hw *hw;
 	struct virtio_user_dev *dev;
 
-	eth_dev = rte_eth_vdev_allocate(vdev, sizeof(*hw));
+	eth_dev = rte_eth_vdev_allocate(vdev, sizeof(*dev));
 	if (!eth_dev) {
 		PMD_INIT_LOG(ERR, "cannot alloc rte_eth_dev");
 		return NULL;
 	}
 
 	data = eth_dev->data;
-	hw = eth_dev->data->dev_private;
-
-	dev = rte_zmalloc(NULL, sizeof(*dev), 0);
-	if (!dev) {
-		PMD_INIT_LOG(ERR, "malloc virtio_user_dev failed");
-		rte_eth_dev_release_port(eth_dev);
-		return NULL;
-	}
+	dev = eth_dev->data->dev_private;
+	hw = &dev->hw;
 
 	hw->port_id = data->port_id;
 	dev->port_id = data->port_id;
@@ -634,17 +628,13 @@ virtio_user_eth_dev_alloc(struct rte_vdev_device *vdev)
 	hw->use_vec_tx = 0;
 	hw->use_inorder_rx = 0;
 	hw->use_inorder_tx = 0;
-	hw->virtio_user_dev = dev;
+
 	return eth_dev;
 }
 
 static void
 virtio_user_eth_dev_free(struct rte_eth_dev *eth_dev)
 {
-	struct rte_eth_dev_data *data = eth_dev->data;
-	struct virtio_hw *hw = data->dev_private;
-
-	rte_free(hw->virtio_user_dev);
 	rte_eth_dev_release_port(eth_dev);
 }
 
@@ -653,11 +643,12 @@ virtio_user_eth_dev_free(struct rte_eth_dev *eth_dev)
  * Returns 0 on success.
  */
 static int
-virtio_user_pmd_probe(struct rte_vdev_device *dev)
+virtio_user_pmd_probe(struct rte_vdev_device *vdev)
 {
 	struct rte_kvargs *kvlist = NULL;
 	struct rte_eth_dev *eth_dev;
 	struct virtio_hw *hw;
+	struct virtio_user_dev *dev;
 	enum virtio_user_backend_type backend_type = VIRTIO_USER_BACKEND_UNKNOWN;
 	uint64_t queues = VIRTIO_USER_DEF_Q_NUM;
 	uint64_t cq = VIRTIO_USER_DEF_CQ_EN;
@@ -672,8 +663,10 @@ virtio_user_pmd_probe(struct rte_vdev_device *dev)
 	char *mac_addr = NULL;
 	int ret = -1;
 
+	RTE_BUILD_BUG_ON(offsetof(struct virtio_user_dev, hw) != 0);
+
 	if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
-		const char *name = rte_vdev_device_name(dev);
+		const char *name = rte_vdev_device_name(vdev);
 		eth_dev = rte_eth_dev_attach_secondary(name);
 		if (!eth_dev) {
 			PMD_INIT_LOG(ERR, "Failed to probe %s", name);
@@ -687,12 +680,12 @@ virtio_user_pmd_probe(struct rte_vdev_device *dev)
 		}
 
 		eth_dev->dev_ops = &virtio_user_secondary_eth_dev_ops;
-		eth_dev->device = &dev->device;
+		eth_dev->device = &vdev->device;
 		rte_eth_dev_probing_finish(eth_dev);
 		return 0;
 	}
 
-	kvlist = rte_kvargs_parse(rte_vdev_device_args(dev), valid_args);
+	kvlist = rte_kvargs_parse(rte_vdev_device_args(vdev), valid_args);
 	if (!kvlist) {
 		PMD_INIT_LOG(ERR, "error when parsing param");
 		goto end;
@@ -832,14 +825,15 @@ virtio_user_pmd_probe(struct rte_vdev_device *dev)
 		}
 	}
 
-	eth_dev = virtio_user_eth_dev_alloc(dev);
+	eth_dev = virtio_user_eth_dev_alloc(vdev);
 	if (!eth_dev) {
 		PMD_INIT_LOG(ERR, "virtio_user fails to alloc device");
 		goto end;
 	}
 
-	hw = eth_dev->data->dev_private;
-	if (virtio_user_dev_init(hw->virtio_user_dev, path, queues, cq,
+	dev = eth_dev->data->dev_private;
+	hw = &dev->hw;
+	if (virtio_user_dev_init(dev, path, queues, cq,
 			 queue_size, mac_addr, &ifname, server_mode,
 			 mrg_rxbuf, in_order, packed_vq, backend_type) < 0) {
 		PMD_INIT_LOG(ERR, "virtio_user_dev_init fails");
@@ -912,7 +906,6 @@ static int virtio_user_pmd_dma_map(struct rte_vdev_device *vdev, void *addr,
 	const char *name;
 	struct rte_eth_dev *eth_dev;
 	struct virtio_user_dev *dev;
-	struct virtio_hw *hw;
 
 	if (!vdev)
 		return -EINVAL;
@@ -923,8 +916,7 @@ static int virtio_user_pmd_dma_map(struct rte_vdev_device *vdev, void *addr,
 	if (!eth_dev)
 		return 0;
 
-	hw = (struct virtio_hw *)eth_dev->data->dev_private;
-	dev = hw->virtio_user_dev;
+	dev = eth_dev->data->dev_private;
 
 	if (dev->ops->dma_map)
 		return dev->ops->dma_map(dev, addr, iova, len);
@@ -938,7 +930,6 @@ static int virtio_user_pmd_dma_unmap(struct rte_vdev_device *vdev, void *addr,
 	const char *name;
 	struct rte_eth_dev *eth_dev;
 	struct virtio_user_dev *dev;
-	struct virtio_hw *hw;
 
 	if (!vdev)
 		return -EINVAL;
@@ -949,8 +940,7 @@ static int virtio_user_pmd_dma_unmap(struct rte_vdev_device *vdev, void *addr,
 	if (!eth_dev)
 		return 0;
 
-	hw = (struct virtio_hw *)eth_dev->data->dev_private;
-	dev = hw->virtio_user_dev;
+	dev = eth_dev->data->dev_private;
 
 	if (dev->ops->dma_unmap)
 		return dev->ops->dma_unmap(dev, addr, iova, len);
-- 
2.29.2


  parent reply	other threads:[~2021-01-26 10:17 UTC|newest]

Thread overview: 62+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-26 10:15 [dpdk-dev] [PATCH v4 00/44] net/virtio: Virtio PMD rework Maxime Coquelin
2021-01-26 10:15 ` [dpdk-dev] [PATCH v4 01/44] bus/vdev: add helper to get vdev from ethdev Maxime Coquelin
2021-01-26 10:15 ` [dpdk-dev] [PATCH v4 02/44] bus/vdev: add driver IOVA VA mode requirement Maxime Coquelin
2021-01-26 11:50   ` Xia, Chenbo
2021-01-26 12:50   ` David Marchand
2021-01-26 13:23     ` Kinsella, Ray
2021-01-26 14:40       ` David Marchand
2021-01-26 15:28         ` Kinsella, Ray
2021-01-27  8:23   ` David Marchand
2021-01-27  8:25     ` Maxime Coquelin
2021-01-26 10:15 ` [dpdk-dev] [PATCH v4 03/44] net/virtio: fix getting old status on reconnect Maxime Coquelin
2021-01-26 10:15 ` [dpdk-dev] [PATCH v4 04/44] net/virtio: introduce Virtio bus type Maxime Coquelin
2021-01-26 10:16 ` Maxime Coquelin [this message]
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 06/44] net/virtio: introduce PCI device metadata Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 07/44] net/virtio: move PCI device init in dedicated file Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 08/44] net/virtio: move PCI specific dev init to PCI ethdev init Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 09/44] net/virtio: move MSIX detection to PCI ethdev Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 10/44] net/virtio: force IOVA as VA mode for Virtio-user Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 11/44] net/virtio: store PCI type in Virtio device metadata Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 12/44] net/virtio: add callback for device closing Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 13/44] net/virtio: validate features at bus level Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 14/44] net/virtio: remove bus type enum Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 15/44] net/virtio: move PCI-specific fields to PCI device Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 16/44] net/virtio: pack virtio HW struct Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 17/44] net/virtio: move legacy IO to Virtio PCI Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 18/44] net/virtio: introduce generic virtio header Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 19/44] net/virtio: move features definition to generic header Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 20/44] net/virtio: move virtqueue defines in " Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 21/44] net/virtio: move config definitions to " Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 22/44] net/virtio: make interrupt handling more generic Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 23/44] net/virtio: move vring alignment to generic header Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 24/44] net/virtio: remove last PCI refs in non-PCI code Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 25/44] net/virtio: make Vhost-user request sender consistent Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 26/44] net/virtio: add Virtio-user ops to set owner Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 27/44] net/virtio: add Virtio-user features ops Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 28/44] net/virtio: add Virtio-user protocol " Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 29/44] net/virtio: add Virtio-user memory tables ops Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 30/44] net/virtio: add Virtio-user vring setting ops Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 31/44] net/virtio: add Virtio-user vring file ops Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 32/44] net/virtio: add Virtio-user vring address ops Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 33/44] net/virtio: add Virtio-user status ops Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 34/44] net/virtio: remove useless request ops Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 35/44] net/virtio: improve Virtio-user errors handling Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 36/44] net/virtio: move Vhost-user requests to Vhost-user backend Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 37/44] net/virtio: make server mode blocking Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 38/44] net/virtio: move protocol features to Vhost-user Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 39/44] net/virtio: introduce backend data Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 40/44] net/virtio: move Vhost-user specifics to its backend Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 41/44] net/virtio: move Vhost-kernel data " Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 42/44] net/virtio: move Vhost-vDPA " Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 43/44] net/virtio: improve Vhost-user error logging Maxime Coquelin
2021-01-26 10:16 ` [dpdk-dev] [PATCH v4 44/44] net/virtio: handle Virtio-user setup failure properly Maxime Coquelin
2021-01-26 12:02   ` Xia, Chenbo
2021-01-26 12:59     ` Maxime Coquelin
2021-01-27 11:59 ` [dpdk-dev] [PATCH v4 00/44] net/virtio: Virtio PMD rework Maxime Coquelin
2021-02-01  8:44 ` Wang, Yinan
2021-02-01  8:49   ` Maxime Coquelin
2021-02-01 13:00 ` Ilya Maximets
2021-02-01 13:03   ` Ilya Maximets
2021-02-01 13:16     ` Maxime Coquelin
2021-02-01 13:42       ` Ilya Maximets
2021-02-01 13:51         ` Maxime Coquelin

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