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 02/40] net/virtio: Introduce Virtio bus type
Date: Sun, 20 Dec 2020 22:13:27 +0100 [thread overview]
Message-ID: <20201220211405.313012-3-maxime.coquelin@redhat.com> (raw)
In-Reply-To: <20201220211405.313012-1-maxime.coquelin@redhat.com>
This patch is preliminary work for introducing a bus layer
in Virtio PMD, in order to improve Virtio-user integration.
A new bus type is added to provide a unified way to distinguish
which bus type is used (PCI modern, PCI legacy or Virtio-user).
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
---
drivers/net/virtio/virtio_ethdev.c | 43 ++++++++++++-------------
drivers/net/virtio/virtio_pci.c | 4 +--
drivers/net/virtio/virtio_pci.h | 9 +++++-
drivers/net/virtio/virtio_user_ethdev.c | 2 +-
4 files changed, 32 insertions(+), 26 deletions(-)
diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index 6c233b75ba..b3086297c0 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -592,9 +592,9 @@ virtio_init_queue(struct rte_eth_dev *dev, uint16_t vtpci_queue_idx)
* we use virtual address. And we need properly set _offset_, please see
* VIRTIO_MBUF_DATA_DMA_ADDR in virtqueue.h for more information.
*/
- if (!hw->virtio_user_dev)
+ if (hw->bus_type == VIRTIO_BUS_PCI_LEGACY || hw->bus_type == VIRTIO_BUS_PCI_MODERN) {
vq->offset = offsetof(struct rte_mbuf, buf_iova);
- else {
+ } else if (hw->bus_type == VIRTIO_BUS_USER) {
vq->vq_ring_mem = (uintptr_t)mz->addr;
vq->offset = offsetof(struct rte_mbuf, buf_addr);
if (queue_type == VTNET_TQ)
@@ -746,13 +746,13 @@ virtio_dev_close(struct rte_eth_dev *dev)
virtio_free_queues(hw);
#ifdef RTE_VIRTIO_USER
- if (hw->virtio_user_dev)
+ if (hw->bus_type == VIRTIO_BUS_USER)
virtio_user_dev_uninit(hw->virtio_user_dev);
else
#endif
if (dev->device) {
rte_pci_unmap_device(RTE_ETH_DEV_TO_PCI(dev));
- if (!hw->modern)
+ if (hw->bus_type == VIRTIO_BUS_PCI_LEGACY)
rte_pci_ioport_unmap(VTPCI_IO(hw));
}
@@ -1299,7 +1299,7 @@ virtio_intr_unmask(struct rte_eth_dev *dev)
if (rte_intr_ack(dev->intr_handle) < 0)
return -1;
- if (!hw->virtio_user_dev)
+ if (hw->bus_type == VIRTIO_BUS_PCI_LEGACY || hw->bus_type == VIRTIO_BUS_PCI_MODERN)
hw->use_msix = vtpci_msix_detect(RTE_ETH_DEV_TO_PCI(dev));
return 0;
@@ -1313,7 +1313,7 @@ virtio_intr_enable(struct rte_eth_dev *dev)
if (rte_intr_enable(dev->intr_handle) < 0)
return -1;
- if (!hw->virtio_user_dev)
+ if (hw->bus_type == VIRTIO_BUS_PCI_LEGACY || hw->bus_type == VIRTIO_BUS_PCI_MODERN)
hw->use_msix = vtpci_msix_detect(RTE_ETH_DEV_TO_PCI(dev));
return 0;
@@ -1327,7 +1327,7 @@ virtio_intr_disable(struct rte_eth_dev *dev)
if (rte_intr_disable(dev->intr_handle) < 0)
return -1;
- if (!hw->virtio_user_dev)
+ if (hw->bus_type == VIRTIO_BUS_PCI_LEGACY || hw->bus_type == VIRTIO_BUS_PCI_MODERN)
hw->use_msix = vtpci_msix_detect(RTE_ETH_DEV_TO_PCI(dev));
return 0;
@@ -1368,13 +1368,13 @@ virtio_negotiate_features(struct virtio_hw *hw, uint64_t req_features)
PMD_INIT_LOG(DEBUG, "features after negotiate = %" PRIx64,
hw->guest_features);
- if (hw->modern && !vtpci_with_feature(hw, VIRTIO_F_VERSION_1)) {
+ if (hw->bus_type == VIRTIO_BUS_PCI_MODERN && !vtpci_with_feature(hw, VIRTIO_F_VERSION_1)) {
PMD_INIT_LOG(ERR,
"VIRTIO_F_VERSION_1 features is not enabled.");
return -1;
}
- if (hw->modern || hw->virtio_user_dev) {
+ if (hw->bus_type == VIRTIO_BUS_PCI_MODERN || hw->bus_type == VIRTIO_BUS_USER) {
vtpci_set_status(hw, VIRTIO_CONFIG_STATUS_FEATURES_OK);
if (!(vtpci_get_status(hw) & VIRTIO_CONFIG_STATUS_FEATURES_OK)) {
PMD_INIT_LOG(ERR,
@@ -1709,7 +1709,7 @@ virtio_init_device(struct rte_eth_dev *eth_dev, uint64_t req_features)
hw->weak_barriers = !vtpci_with_feature(hw, VIRTIO_F_ORDER_PLATFORM);
- if (!hw->virtio_user_dev)
+ if (hw->bus_type == VIRTIO_BUS_PCI_LEGACY || hw->bus_type == VIRTIO_BUS_PCI_MODERN)
pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
/* If host does not support both status and MSI-X then disable LSC */
@@ -1856,7 +1856,7 @@ virtio_init_device(struct rte_eth_dev *eth_dev, uint64_t req_features)
static int
virtio_remap_pci(struct rte_pci_device *pci_dev, struct virtio_hw *hw)
{
- if (hw->modern) {
+ if (hw->bus_type == VIRTIO_BUS_PCI_MODERN) {
/*
* We don't have to re-parse the PCI config space, since
* rte_pci_map_device() makes sure the mapped address
@@ -1872,7 +1872,7 @@ virtio_remap_pci(struct rte_pci_device *pci_dev, struct virtio_hw *hw)
PMD_INIT_LOG(DEBUG, "failed to map pci device!");
return -1;
}
- } else {
+ } else if (hw->bus_type == VIRTIO_BUS_PCI_LEGACY) {
if (rte_pci_ioport_map(pci_dev, 0, VTPCI_IO(hw)) < 0)
return -1;
}
@@ -1883,15 +1883,14 @@ virtio_remap_pci(struct rte_pci_device *pci_dev, struct virtio_hw *hw)
static void
virtio_set_vtpci_ops(struct virtio_hw *hw)
{
-#ifdef RTE_VIRTIO_USER
- if (hw->virtio_user_dev)
+ if (hw->bus_type == VIRTIO_BUS_USER)
VTPCI_OPS(hw) = &virtio_user_ops;
- else
-#endif
- if (hw->modern)
+ else if (hw->bus_type == VIRTIO_BUS_PCI_MODERN)
VTPCI_OPS(hw) = &modern_ops;
- else
+ else if (hw->bus_type == VIRTIO_BUS_PCI_LEGACY)
VTPCI_OPS(hw) = &legacy_ops;
+
+ return;
}
/*
@@ -1919,7 +1918,7 @@ eth_virtio_dev_init(struct rte_eth_dev *eth_dev)
eth_dev->rx_descriptor_done = virtio_dev_rx_queue_done;
if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
- if (!hw->virtio_user_dev) {
+ if (hw->bus_type != VIRTIO_BUS_USER) {
ret = virtio_remap_pci(RTE_ETH_DEV_TO_PCI(eth_dev), hw);
if (ret)
return ret;
@@ -1950,7 +1949,7 @@ eth_virtio_dev_init(struct rte_eth_dev *eth_dev)
/* For virtio_user case the hw->virtio_user_dev is populated by
* virtio_user_eth_dev_alloc() before eth_virtio_dev_init() is called.
*/
- if (!hw->virtio_user_dev) {
+ if (hw->bus_type != VIRTIO_BUS_USER) {
ret = vtpci_init(RTE_ETH_DEV_TO_PCI(eth_dev), hw);
if (ret)
goto err_vtpci_init;
@@ -1982,9 +1981,9 @@ eth_virtio_dev_init(struct rte_eth_dev *eth_dev)
return 0;
err_virtio_init:
- if (!hw->virtio_user_dev) {
+ if (hw->bus_type == VIRTIO_BUS_PCI_MODERN || hw->bus_type == VIRTIO_BUS_PCI_LEGACY) {
rte_pci_unmap_device(RTE_ETH_DEV_TO_PCI(eth_dev));
- if (!hw->modern)
+ if (hw->bus_type == VIRTIO_BUS_PCI_LEGACY)
rte_pci_ioport_unmap(VTPCI_IO(hw));
}
err_vtpci_init:
diff --git a/drivers/net/virtio/virtio_pci.c b/drivers/net/virtio/virtio_pci.c
index d6b950ee69..1692268f30 100644
--- a/drivers/net/virtio/virtio_pci.c
+++ b/drivers/net/virtio/virtio_pci.c
@@ -697,7 +697,7 @@ vtpci_init(struct rte_pci_device *dev, struct virtio_hw *hw)
if (virtio_read_caps(dev, hw) == 0) {
PMD_INIT_LOG(INFO, "modern virtio pci detected.");
virtio_hw_internal[hw->port_id].vtpci_ops = &modern_ops;
- hw->modern = 1;
+ hw->bus_type = VIRTIO_BUS_PCI_MODERN;
return 0;
}
@@ -716,7 +716,7 @@ vtpci_init(struct rte_pci_device *dev, struct virtio_hw *hw)
}
virtio_hw_internal[hw->port_id].vtpci_ops = &legacy_ops;
- hw->modern = 0;
+ hw->bus_type = VIRTIO_BUS_PCI_LEGACY;
return 0;
}
diff --git a/drivers/net/virtio/virtio_pci.h b/drivers/net/virtio/virtio_pci.h
index ab61e911b8..6388f0a74d 100644
--- a/drivers/net/virtio/virtio_pci.h
+++ b/drivers/net/virtio/virtio_pci.h
@@ -243,7 +243,15 @@ struct virtio_pci_ops {
struct virtio_net_config;
+enum virtio_bus_type {
+ VIRTIO_BUS_UNKNOWN,
+ VIRTIO_BUS_PCI_LEGACY,
+ VIRTIO_BUS_PCI_MODERN,
+ VIRTIO_BUS_USER,
+};
+
struct virtio_hw {
+ enum virtio_bus_type bus_type;
struct virtnet_ctl *cvq;
uint64_t req_guest_features;
uint64_t guest_features;
@@ -253,7 +261,6 @@ struct virtio_hw {
uint16_t vtnet_hdr_size;
uint8_t vlan_strip;
uint8_t use_msix;
- uint8_t modern;
uint8_t use_vec_rx;
uint8_t use_vec_tx;
uint8_t use_inorder_rx;
diff --git a/drivers/net/virtio/virtio_user_ethdev.c b/drivers/net/virtio/virtio_user_ethdev.c
index 40345193e6..516d0ee577 100644
--- a/drivers/net/virtio/virtio_user_ethdev.c
+++ b/drivers/net/virtio/virtio_user_ethdev.c
@@ -629,7 +629,7 @@ virtio_user_eth_dev_alloc(struct rte_vdev_device *vdev)
* Here just pretend that we support msix.
*/
hw->use_msix = 1;
- hw->modern = 0;
+ hw->bus_type = VIRTIO_BUS_USER;
hw->use_vec_rx = 0;
hw->use_vec_tx = 0;
hw->use_inorder_rx = 0;
--
2.29.2
next prev parent reply other threads:[~2020-12-20 21:15 UTC|newest]
Thread overview: 149+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-20 21:13 [dpdk-dev] [PATCH 00/40] net/virtio: Virtio PMD rework Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 01/40] bus/vdev: add helper to get vdev from eth dev Maxime Coquelin
2020-12-30 3:02 ` Xia, Chenbo
2021-01-05 21:15 ` David Marchand
2020-12-20 21:13 ` Maxime Coquelin [this message]
2020-12-30 3:02 ` [dpdk-dev] [PATCH 02/40] net/virtio: Introduce Virtio bus type Xia, Chenbo
2021-01-05 21:15 ` David Marchand
2021-01-14 9:24 ` Maxime Coquelin
2021-01-14 10:54 ` Maxime Coquelin
2021-01-14 11:55 ` David Marchand
2020-12-20 21:13 ` [dpdk-dev] [PATCH 03/40] net/virtio: refactor virtio-user device Maxime Coquelin
2020-12-30 3:02 ` Xia, Chenbo
2021-01-05 21:16 ` David Marchand
2021-01-14 9:26 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 04/40] net/virtio: introduce PCI device metadata Maxime Coquelin
2020-12-30 3:02 ` Xia, Chenbo
2021-01-05 21:16 ` David Marchand
2021-01-14 11:05 ` Maxime Coquelin
2021-01-14 14:40 ` David Marchand
2021-01-14 14:44 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 05/40] net/virtio: move PCI device init in dedicated file Maxime Coquelin
2020-12-30 3:02 ` Xia, Chenbo
2021-01-05 21:19 ` David Marchand
2021-01-14 16:04 ` Maxime Coquelin
2021-01-14 16:14 ` David Marchand
2020-12-20 21:13 ` [dpdk-dev] [PATCH 06/40] net/virtio: move PCI specific dev init to PCI ethdev init Maxime Coquelin
2020-12-30 3:05 ` Xia, Chenbo
2021-01-06 8:58 ` David Marchand
2020-12-20 21:13 ` [dpdk-dev] [PATCH 07/40] net/virtio: move MSIX detection to PCI ethdev Maxime Coquelin
2020-12-30 3:05 ` Xia, Chenbo
2021-01-06 8:22 ` David Marchand
2021-01-14 17:19 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 08/40] net/virtio: force IOVA as VA mode for Virtio-user Maxime Coquelin
2020-12-30 3:06 ` Xia, Chenbo
2021-01-06 9:06 ` David Marchand
2021-01-06 9:11 ` Thomas Monjalon
2021-01-06 9:22 ` Maxime Coquelin
2021-01-06 16:37 ` Kinsella, Ray
2021-01-06 9:14 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 09/40] net/virtio: store PCI type in Virtio device metadata Maxime Coquelin
2020-12-30 3:07 ` Xia, Chenbo
2021-01-06 9:14 ` David Marchand
2020-12-20 21:13 ` [dpdk-dev] [PATCH 10/40] net/virtio: add callback for device closing Maxime Coquelin
2020-12-30 3:07 ` Xia, Chenbo
2021-01-06 9:33 ` David Marchand
2020-12-20 21:13 ` [dpdk-dev] [PATCH 11/40] net/virtio: validate features at bus level Maxime Coquelin
2020-12-30 3:08 ` Xia, Chenbo
2021-01-06 9:33 ` David Marchand
2021-01-15 9:20 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 12/40] net/virtio: remove bus type enum Maxime Coquelin
2020-12-30 3:08 ` Xia, Chenbo
2021-01-06 9:33 ` David Marchand
2020-12-20 21:13 ` [dpdk-dev] [PATCH 13/40] net/virtio: move PCI-specific fields to PCI device Maxime Coquelin
2020-12-30 3:08 ` Xia, Chenbo
2021-01-06 9:58 ` David Marchand
2020-12-20 21:13 ` [dpdk-dev] [PATCH 14/40] net/virtio: pack virtio HW struct Maxime Coquelin
2020-12-30 3:09 ` Xia, Chenbo
2021-01-06 9:58 ` David Marchand
2021-01-15 9:35 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 15/40] net/virtio: move legacy IO to Virtio PCI Maxime Coquelin
2020-12-30 3:09 ` Xia, Chenbo
2021-01-06 10:09 ` David Marchand
2020-12-20 21:13 ` [dpdk-dev] [PATCH 16/40] net/virtio: introduce generic virtio header Maxime Coquelin
2020-12-30 3:09 ` Xia, Chenbo
2021-01-06 10:08 ` David Marchand
2021-01-15 9:39 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 17/40] net/virtio: move features definition to generic header Maxime Coquelin
2020-12-30 3:14 ` Xia, Chenbo
2021-01-14 8:40 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 18/40] net/virtio: move virtqueue defines in " Maxime Coquelin
2020-12-30 3:14 ` Xia, Chenbo
2021-01-06 15:53 ` David Marchand
2021-01-15 10:55 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 19/40] net/virtio: move config definitions to " Maxime Coquelin
2020-12-30 3:15 ` Xia, Chenbo
2021-01-06 16:01 ` David Marchand
2021-01-15 11:01 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 20/40] net/virtio: make interrupt handling more generic Maxime Coquelin
2020-12-30 3:17 ` Xia, Chenbo
2021-01-14 8:43 ` Maxime Coquelin
2021-01-06 16:07 ` David Marchand
2020-12-20 21:13 ` [dpdk-dev] [PATCH 21/40] net/virtio: move vring alignment to generic header Maxime Coquelin
2020-12-30 3:18 ` Xia, Chenbo
2021-01-06 16:13 ` David Marchand
2020-12-20 21:13 ` [dpdk-dev] [PATCH 22/40] net/virtio: remove last PCI refs in non-PCI code Maxime Coquelin
2020-12-30 3:25 ` Xia, Chenbo
2021-01-14 8:46 ` Maxime Coquelin
2021-01-06 16:18 ` David Marchand
2021-01-15 11:10 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 23/40] net/virtio: make Vhost-user req sender consistent Maxime Coquelin
2021-01-06 11:50 ` Xia, Chenbo
2021-01-15 9:47 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 24/40] net/virtio: add Virtio-user ops to set owner Maxime Coquelin
2021-01-06 11:50 ` Xia, Chenbo
2020-12-20 21:13 ` [dpdk-dev] [PATCH 25/40] net/virtio: add Virtio-user features ops Maxime Coquelin
2021-01-06 11:54 ` Xia, Chenbo
2021-01-13 13:43 ` Adrian Moreno
2021-01-13 13:54 ` Maxime Coquelin
2021-01-15 14:19 ` Maxime Coquelin
2021-01-13 13:57 ` Adrian Moreno
2021-01-15 14:29 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 26/40] net/virtio: add Virtio-user protocol " Maxime Coquelin
2021-01-06 11:55 ` Xia, Chenbo
2020-12-20 21:13 ` [dpdk-dev] [PATCH 27/40] net/virtio: add Virtio-user memory tables ops Maxime Coquelin
2021-01-06 11:57 ` Xia, Chenbo
2021-01-15 9:57 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 28/40] net/virtio: add Virtio-user vring setting ops Maxime Coquelin
2021-01-05 21:24 ` David Marchand
2021-01-06 12:01 ` Xia, Chenbo
2021-01-15 10:12 ` Maxime Coquelin
2021-01-06 12:03 ` Xia, Chenbo
2021-01-15 10:15 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 29/40] net/virtio: add Virtio-user vring file ops Maxime Coquelin
2021-01-05 21:24 ` David Marchand
2021-01-06 12:04 ` Xia, Chenbo
2021-01-15 10:17 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 30/40] net/virtio: add Virtio-user vring address ops Maxime Coquelin
2021-01-06 12:06 ` Xia, Chenbo
2021-01-15 10:19 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 31/40] net/virtio: add Virtio-user status ops Maxime Coquelin
2021-01-06 12:09 ` Xia, Chenbo
2021-01-15 10:48 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 32/40] net/virtio: remove useless request ops Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 33/40] net/virtio: improve Virtio-user errors handling Maxime Coquelin
2021-01-07 2:26 ` Xia, Chenbo
2021-01-15 11:09 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 34/40] net/virtio: move Vhost-user reqs to Vhost-user backend Maxime Coquelin
2020-12-20 21:14 ` [dpdk-dev] [PATCH 35/40] net/virtio: make server mode blocking Maxime Coquelin
2021-01-07 3:20 ` Xia, Chenbo
2021-01-15 11:13 ` Maxime Coquelin
2020-12-20 21:14 ` [dpdk-dev] [PATCH 36/40] net/virtio: move protocol features to Vhost-user Maxime Coquelin
2020-12-20 21:14 ` [dpdk-dev] [PATCH 37/40] net/virtio: introduce backend data Maxime Coquelin
2021-01-05 21:26 ` David Marchand
2021-01-13 17:18 ` Adrian Moreno
2021-01-15 16:49 ` Maxime Coquelin
2020-12-20 21:14 ` [dpdk-dev] [PATCH 38/40] net/virtio: move Vhost-user specifics to its backend Maxime Coquelin
2021-01-07 6:32 ` Xia, Chenbo
2021-01-15 12:03 ` Maxime Coquelin
2020-12-20 21:14 ` [dpdk-dev] [PATCH 39/40] net/virtio: move Vhost-kernel data " Maxime Coquelin
2021-01-07 6:42 ` Xia, Chenbo
2021-01-11 8:02 ` Xia, Chenbo
2021-01-15 11:54 ` Maxime Coquelin
2021-01-18 20:36 ` Maxime Coquelin
2020-12-20 21:14 ` [dpdk-dev] [PATCH 40/40] net/virtio: move Vhost-vDPA " Maxime Coquelin
2020-12-22 15:20 ` Maxime Coquelin
2021-01-07 6:50 ` Xia, Chenbo
2021-01-15 12:08 ` Maxime Coquelin
2021-01-11 8:05 ` Xia, Chenbo
2020-12-21 10:58 ` [dpdk-dev] [PATCH 00/40] net/virtio: Virtio PMD rework Maxime Coquelin
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