[PATCH v4 3/9] net/gve: add support for device initialization

[Junfeng Guo <junfeng.guo@intel.com>]

Support device init and the fowllowing devops:
- dev_configure
- dev_start
- dev_stop
- dev_close

Signed-off-by: Haiyue Wang <haiyue.wang@intel.com>
Signed-off-by: Xiaoyun Li <xiaoyun.li@intel.com>
Signed-off-by: Junfeng Guo <junfeng.guo@intel.com>
---
 MAINTAINERS                            |   6 +
 doc/guides/nics/features/gve.ini       |  10 +
 doc/guides/nics/gve.rst                |  69 +++++
 doc/guides/nics/index.rst              |   1 +
 doc/guides/rel_notes/release_22_11.rst |   5 +
 drivers/net/gve/base/gve_adminq.c      |   1 +
 drivers/net/gve/gve_ethdev.c           | 371 +++++++++++++++++++++++++
 drivers/net/gve/gve_ethdev.h           | 225 +++++++++++++++
 drivers/net/gve/meson.build            |  14 +
 drivers/net/gve/version.map            |   3 +
 drivers/net/meson.build                |   1 +
 11 files changed, 706 insertions(+)
 create mode 100644 doc/guides/nics/features/gve.ini
 create mode 100644 doc/guides/nics/gve.rst
 create mode 100644 drivers/net/gve/gve_ethdev.c
 create mode 100644 drivers/net/gve/gve_ethdev.h
 create mode 100644 drivers/net/gve/meson.build
 create mode 100644 drivers/net/gve/version.map

diff --git a/MAINTAINERS b/MAINTAINERS
index 32ffdd1a61..474f41f0de 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -697,6 +697,12 @@ F: drivers/net/enic/
 F: doc/guides/nics/enic.rst
 F: doc/guides/nics/features/enic.ini
 
+Google Virtual Ethernet
+M: Junfeng Guo <junfeng.guo@intel.com>
+F: drivers/net/gve/
+F: doc/guides/nics/gve.rst
+F: doc/guides/nics/features/gve.ini
+
 Hisilicon hns3
 M: Dongdong Liu <liudongdong3@huawei.com>
 M: Yisen Zhuang <yisen.zhuang@huawei.com>
diff --git a/doc/guides/nics/features/gve.ini b/doc/guides/nics/features/gve.ini
new file mode 100644
index 0000000000..44aec28009
--- /dev/null
+++ b/doc/guides/nics/features/gve.ini
@@ -0,0 +1,10 @@
+;
+; Supported features of the Google Virtual Ethernet 'gve' poll mode driver.
+;
+; Refer to default.ini for the full list of available PMD features.
+;
+[Features]
+Linux                = Y
+x86-32               = Y
+x86-64               = Y
+Usage doc            = Y
diff --git a/doc/guides/nics/gve.rst b/doc/guides/nics/gve.rst
new file mode 100644
index 0000000000..e93a0a6338
--- /dev/null
+++ b/doc/guides/nics/gve.rst
@@ -0,0 +1,69 @@
+..  SPDX-License-Identifier: BSD-3-Clause
+    Copyright(C) 2022 Intel Corporation.
+
+GVE poll mode driver
+=======================
+
+The GVE PMD (**librte_net_gve**) provides poll mode driver support for
+Google Virtual Ethernet device.
+
+Please refer to https://cloud.google.com/compute/docs/networking/using-gvnic
+for the device description.
+
+The base code is under MIT license and based on GVE kernel driver v1.3.0.
+GVE base code files are:
+
+- gve_adminq.h
+- gve_adminq.c
+- gve_desc.h
+- gve_desc_dqo.h
+- gve_register.h
+- gve.h
+
+Please refer to https://github.com/GoogleCloudPlatform/compute-virtual-ethernet-linux/tree/v1.3.0/google/gve
+to find the original base code.
+
+GVE has 3 queue formats:
+
+- GQI_QPL - GQI with queue page list
+- GQI_RDA - GQI with raw DMA addressing
+- DQO_RDA - DQO with raw DMA addressing
+
+GQI_QPL queue format is queue page list mode. Driver needs to allocate
+memory and register this memory as a Queue Page List (QPL) in hardware
+(Google Hypervisor/GVE Backend) first. Each queue has its own QPL.
+Then Tx needs to copy packets to QPL memory and put this packet's offset
+in the QPL memory into hardware descriptors so that hardware can get the
+packets data. And Rx needs to read descriptors of offset in QPL to get
+QPL address and copy packets from the address to get real packets data.
+
+GQI_RDA queue format works like usual NICs that driver can put packets'
+physical address into hardware descriptors.
+
+DQO_RDA queue format has submission and completion queue pair for each
+Tx/Rx queue. And similar as GQI_RDA, driver can put packets' physical
+address into hardware descriptors.
+
+Please refer to https://www.kernel.org/doc/html/latest/networking/device_drivers/ethernet/google/gve.html
+to get more information about GVE queue formats.
+
+Features and Limitations
+------------------------
+
+In this release, the GVE PMD provides the basic functionality of packet
+reception and transmission.
+Supported features of the GVE PMD are:
+
+- Multiple queues for TX and RX
+- Receiver Side Scaling (RSS)
+- TSO offload
+- Port hardware statistics
+- Link state information
+- TX multi-segments (Scatter TX)
+- Tx UDP/TCP/SCTP Checksum
+
+Currently, only GQI_QPL and GQI_RDA queue format are supported in PMD.
+Jumbo Frame is not supported in PMD for now. It'll be added in the future
+DPDK release.
+Also, only GQI_QPL queue format is in use on GCP since GQI_RDA hasn't been
+released in production.
diff --git a/doc/guides/nics/index.rst b/doc/guides/nics/index.rst
index f48e9f815c..64388adad0 100644
--- a/doc/guides/nics/index.rst
+++ b/doc/guides/nics/index.rst
@@ -29,6 +29,7 @@ Network Interface Controller Drivers
     enetfec
     enic
     fm10k
+    gve
     hinic
     hns3
     i40e
diff --git a/doc/guides/rel_notes/release_22_11.rst b/doc/guides/rel_notes/release_22_11.rst
index bb77a03e24..20d9dcaafd 100644
--- a/doc/guides/rel_notes/release_22_11.rst
+++ b/doc/guides/rel_notes/release_22_11.rst
@@ -59,6 +59,11 @@ New Features
 
   * Added flow subscription support.
 
+* **Added GVE net PMD**
+
+  * Added the new ``gve`` net driver for Google Virtual Ethernet devices.
+  * See the :doc:`../nics/gve` NIC guide for more details on this new driver.
+
 
 Removed Items
 -------------
diff --git a/drivers/net/gve/base/gve_adminq.c b/drivers/net/gve/base/gve_adminq.c
index 95ec6b015c..072fbee539 100644
--- a/drivers/net/gve/base/gve_adminq.c
+++ b/drivers/net/gve/base/gve_adminq.c
@@ -5,6 +5,7 @@
  * Copyright(C) 2022 Intel Corporation
  */
 
+#include "../gve_ethdev.h"
 #include "gve_adminq.h"
 #include "gve_register.h"
 
diff --git a/drivers/net/gve/gve_ethdev.c b/drivers/net/gve/gve_ethdev.c
new file mode 100644
index 0000000000..df698c1b02
--- /dev/null
+++ b/drivers/net/gve/gve_ethdev.c
@@ -0,0 +1,371 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(C) 2022 Intel Corporation
+ */
+#include <linux/pci_regs.h>
+
+#include "gve_ethdev.h"
+#include "base/gve_adminq.h"
+#include "base/gve_register.h"
+
+const char gve_version_str[] = GVE_VERSION;
+static const char gve_version_prefix[] = GVE_VERSION_PREFIX;
+
+static void
+gve_write_version(uint8_t *driver_version_register)
+{
+	const char *c = gve_version_prefix;
+
+	while (*c) {
+		writeb(*c, driver_version_register);
+		c++;
+	}
+
+	c = gve_version_str;
+	while (*c) {
+		writeb(*c, driver_version_register);
+		c++;
+	}
+	writeb('\n', driver_version_register);
+}
+
+static int
+gve_dev_configure(__rte_unused struct rte_eth_dev *dev)
+{
+	return 0;
+}
+
+static int
+gve_dev_start(struct rte_eth_dev *dev)
+{
+	dev->data->dev_started = 1;
+
+	return 0;
+}
+
+static int
+gve_dev_stop(struct rte_eth_dev *dev)
+{
+	dev->data->dev_link.link_status = RTE_ETH_LINK_DOWN;
+	dev->data->dev_started = 0;
+
+	return 0;
+}
+
+static int
+gve_dev_close(struct rte_eth_dev *dev)
+{
+	int err = 0;
+
+	if (dev->data->dev_started) {
+		err = gve_dev_stop(dev);
+		if (err != 0)
+			PMD_DRV_LOG(ERR, "Failed to stop dev.");
+	}
+
+	return err;
+}
+
+static const struct eth_dev_ops gve_eth_dev_ops = {
+	.dev_configure        = gve_dev_configure,
+	.dev_start            = gve_dev_start,
+	.dev_stop             = gve_dev_stop,
+	.dev_close            = gve_dev_close,
+};
+
+static void
+gve_free_counter_array(struct gve_priv *priv)
+{
+	rte_memzone_free(priv->cnt_array_mz);
+	priv->cnt_array = NULL;
+}
+
+static void
+gve_free_irq_db(struct gve_priv *priv)
+{
+	rte_memzone_free(priv->irq_dbs_mz);
+	priv->irq_dbs = NULL;
+}
+
+static void
+gve_teardown_device_resources(struct gve_priv *priv)
+{
+	int err;
+
+	/* Tell device its resources are being freed */
+	if (gve_get_device_resources_ok(priv)) {
+		err = gve_adminq_deconfigure_device_resources(priv);
+		if (err)
+			PMD_DRV_LOG(ERR, "Could not deconfigure device resources: err=%d", err);
+	}
+	gve_free_counter_array(priv);
+	gve_free_irq_db(priv);
+	gve_clear_device_resources_ok(priv);
+}
+
+static uint8_t
+pci_dev_find_capability(struct rte_pci_device *pdev, int cap)
+{
+	uint8_t pos, id;
+	uint16_t ent;
+	int loops;
+	int ret;
+
+	ret = rte_pci_read_config(pdev, &pos, sizeof(pos), PCI_CAPABILITY_LIST);
+	if (ret != sizeof(pos))
+		return 0;
+
+	loops = (PCI_CFG_SPACE_SIZE - PCI_STD_HEADER_SIZEOF) / PCI_CAP_SIZEOF;
+
+	while (pos && loops--) {
+		ret = rte_pci_read_config(pdev, &ent, sizeof(ent), pos);
+		if (ret != sizeof(ent))
+			return 0;
+
+		id = ent & 0xff;
+		if (id == 0xff)
+			break;
+
+		if (id == cap)
+			return pos;
+
+		pos = (ent >> 8);
+	}
+
+	return 0;
+}
+
+static int
+pci_dev_msix_vec_count(struct rte_pci_device *pdev)
+{
+	uint8_t msix_cap = pci_dev_find_capability(pdev, PCI_CAP_ID_MSIX);
+	uint16_t control;
+	int ret;
+
+	if (!msix_cap)
+		return 0;
+
+	ret = rte_pci_read_config(pdev, &control, sizeof(control), msix_cap + PCI_MSIX_FLAGS);
+	if (ret != sizeof(control))
+		return 0;
+
+	return (control & PCI_MSIX_FLAGS_QSIZE) + 1;
+}
+
+static int
+gve_setup_device_resources(struct gve_priv *priv)
+{
+	char z_name[RTE_MEMZONE_NAMESIZE];
+	const struct rte_memzone *mz;
+	int err = 0;
+
+	snprintf(z_name, sizeof(z_name), "gve_%s_cnt_arr", priv->pci_dev->device.name);
+	mz = rte_memzone_reserve_aligned(z_name,
+					 priv->num_event_counters * sizeof(*priv->cnt_array),
+					 rte_socket_id(), RTE_MEMZONE_IOVA_CONTIG,
+					 PAGE_SIZE);
+	if (mz == NULL) {
+		PMD_DRV_LOG(ERR, "Could not alloc memzone for count array");
+		return -ENOMEM;
+	}
+	priv->cnt_array = (rte_be32_t *)mz->addr;
+	priv->cnt_array_mz = mz;
+
+	snprintf(z_name, sizeof(z_name), "gve_%s_irqmz", priv->pci_dev->device.name);
+	mz = rte_memzone_reserve_aligned(z_name,
+					 sizeof(*priv->irq_dbs) * (priv->num_ntfy_blks),
+					 rte_socket_id(), RTE_MEMZONE_IOVA_CONTIG,
+					 PAGE_SIZE);
+	if (mz == NULL) {
+		PMD_DRV_LOG(ERR, "Could not alloc memzone for irq_dbs");
+		err = -ENOMEM;
+		goto free_cnt_array;
+	}
+	priv->irq_dbs = (struct gve_irq_db *)mz->addr;
+	priv->irq_dbs_mz = mz;
+
+	err = gve_adminq_configure_device_resources(priv,
+						    priv->cnt_array_mz->iova,
+						    priv->num_event_counters,
+						    priv->irq_dbs_mz->iova,
+						    priv->num_ntfy_blks);
+	if (unlikely(err)) {
+		PMD_DRV_LOG(ERR, "Could not config device resources: err=%d", err);
+		goto free_irq_dbs;
+	}
+	return 0;
+
+free_irq_dbs:
+	gve_free_irq_db(priv);
+free_cnt_array:
+	gve_free_counter_array(priv);
+
+	return err;
+}
+
+static int
+gve_init_priv(struct gve_priv *priv, bool skip_describe_device)
+{
+	int num_ntfy;
+	int err;
+
+	/* Set up the adminq */
+	err = gve_adminq_alloc(priv);
+	if (err) {
+		PMD_DRV_LOG(ERR, "Failed to alloc admin queue: err=%d", err);
+		return err;
+	}
+
+	if (skip_describe_device)
+		goto setup_device;
+
+	/* Get the initial information we need from the device */
+	err = gve_adminq_describe_device(priv);
+	if (err) {
+		PMD_DRV_LOG(ERR, "Could not get device information: err=%d", err);
+		goto free_adminq;
+	}
+
+	num_ntfy = pci_dev_msix_vec_count(priv->pci_dev);
+	if (num_ntfy <= 0) {
+		PMD_DRV_LOG(ERR, "Could not count MSI-x vectors");
+		err = -EIO;
+		goto free_adminq;
+	} else if (num_ntfy < GVE_MIN_MSIX) {
+		PMD_DRV_LOG(ERR, "GVE needs at least %d MSI-x vectors, but only has %d",
+			    GVE_MIN_MSIX, num_ntfy);
+		err = -EINVAL;
+		goto free_adminq;
+	}
+
+	priv->num_registered_pages = 0;
+
+	/* gvnic has one Notification Block per MSI-x vector, except for the
+	 * management vector
+	 */
+	priv->num_ntfy_blks = (num_ntfy - 1) & ~0x1;
+	priv->mgmt_msix_idx = priv->num_ntfy_blks;
+
+	priv->max_nb_txq = RTE_MIN(priv->max_nb_txq, priv->num_ntfy_blks / 2);
+	priv->max_nb_rxq = RTE_MIN(priv->max_nb_rxq, priv->num_ntfy_blks / 2);
+
+	if (priv->default_num_queues > 0) {
+		priv->max_nb_txq = RTE_MIN(priv->default_num_queues, priv->max_nb_txq);
+		priv->max_nb_rxq = RTE_MIN(priv->default_num_queues, priv->max_nb_rxq);
+	}
+
+	PMD_DRV_LOG(INFO, "Max TX queues %d, Max RX queues %d",
+		    priv->max_nb_txq, priv->max_nb_rxq);
+
+setup_device:
+	err = gve_setup_device_resources(priv);
+	if (!err)
+		return 0;
+free_adminq:
+	gve_adminq_free(priv);
+	return err;
+}
+
+static void
+gve_teardown_priv_resources(struct gve_priv *priv)
+{
+	gve_teardown_device_resources(priv);
+	gve_adminq_free(priv);
+}
+
+static int
+gve_dev_init(struct rte_eth_dev *eth_dev)
+{
+	struct gve_priv *priv = eth_dev->data->dev_private;
+	int max_tx_queues, max_rx_queues;
+	struct rte_pci_device *pci_dev;
+	struct gve_registers *reg_bar;
+	rte_be32_t *db_bar;
+	int err;
+
+	eth_dev->dev_ops = &gve_eth_dev_ops;
+
+	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+		return 0;
+
+	pci_dev = RTE_DEV_TO_PCI(eth_dev->device);
+
+	reg_bar = pci_dev->mem_resource[GVE_REG_BAR].addr;
+	if (!reg_bar) {
+		PMD_DRV_LOG(ERR, "Failed to map pci bar!");
+		return -ENOMEM;
+	}
+
+	db_bar = pci_dev->mem_resource[GVE_DB_BAR].addr;
+	if (!db_bar) {
+		PMD_DRV_LOG(ERR, "Failed to map doorbell bar!");
+		return -ENOMEM;
+	}
+
+	gve_write_version(&reg_bar->driver_version);
+	/* Get max queues to alloc etherdev */
+	max_tx_queues = ioread32be(&reg_bar->max_tx_queues);
+	max_rx_queues = ioread32be(&reg_bar->max_rx_queues);
+
+	priv->reg_bar0 = reg_bar;
+	priv->db_bar2 = db_bar;
+	priv->pci_dev = pci_dev;
+	priv->state_flags = 0x0;
+
+	priv->max_nb_txq = max_tx_queues;
+	priv->max_nb_rxq = max_rx_queues;
+
+	err = gve_init_priv(priv, false);
+	if (err)
+		return err;
+
+	eth_dev->data->mac_addrs = rte_zmalloc("gve_mac", sizeof(struct rte_ether_addr), 0);
+	if (!eth_dev->data->mac_addrs) {
+		PMD_DRV_LOG(ERR, "Failed to allocate memory to store mac address");
+		return -ENOMEM;
+	}
+	rte_ether_addr_copy(&priv->dev_addr, eth_dev->data->mac_addrs);
+
+	return 0;
+}
+
+static int
+gve_dev_uninit(struct rte_eth_dev *eth_dev)
+{
+	struct gve_priv *priv = eth_dev->data->dev_private;
+
+	eth_dev->data->mac_addrs = NULL;
+
+	gve_teardown_priv_resources(priv);
+
+	return 0;
+}
+
+static int
+gve_pci_probe(__rte_unused struct rte_pci_driver *pci_drv,
+	      struct rte_pci_device *pci_dev)
+{
+	return rte_eth_dev_pci_generic_probe(pci_dev, sizeof(struct gve_priv), gve_dev_init);
+}
+
+static int
+gve_pci_remove(struct rte_pci_device *pci_dev)
+{
+	return rte_eth_dev_pci_generic_remove(pci_dev, gve_dev_uninit);
+}
+
+static const struct rte_pci_id pci_id_gve_map[] = {
+	{ RTE_PCI_DEVICE(GOOGLE_VENDOR_ID, GVE_DEV_ID) },
+	{ .device_id = 0 },
+};
+
+static struct rte_pci_driver rte_gve_pmd = {
+	.id_table = pci_id_gve_map,
+	.drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
+	.probe = gve_pci_probe,
+	.remove = gve_pci_remove,
+};
+
+RTE_PMD_REGISTER_PCI(net_gve, rte_gve_pmd);
+RTE_PMD_REGISTER_PCI_TABLE(net_gve, pci_id_gve_map);
+RTE_PMD_REGISTER_KMOD_DEP(net_gve, "* igb_uio | vfio-pci");
+RTE_LOG_REGISTER_SUFFIX(gve_logtype_driver, driver, NOTICE);
diff --git a/drivers/net/gve/gve_ethdev.h b/drivers/net/gve/gve_ethdev.h
new file mode 100644
index 0000000000..2ac2a46ac1
--- /dev/null
+++ b/drivers/net/gve/gve_ethdev.h
@@ -0,0 +1,225 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(C) 2022 Intel Corporation
+ */
+
+#ifndef _GVE_ETHDEV_H_
+#define _GVE_ETHDEV_H_
+
+#include <ethdev_driver.h>
+#include <ethdev_pci.h>
+#include <rte_ether.h>
+
+#include "base/gve.h"
+
+#define GVE_DEFAULT_RX_FREE_THRESH  512
+#define GVE_DEFAULT_TX_FREE_THRESH  256
+#define GVE_TX_MAX_FREE_SZ          512
+
+#define GVE_MIN_BUF_SIZE	    1024
+#define GVE_MAX_RX_PKTLEN	    65535
+
+/* A list of pages registered with the device during setup and used by a queue
+ * as buffers
+ */
+struct gve_queue_page_list {
+	uint32_t id; /* unique id */
+	uint32_t num_entries;
+	dma_addr_t *page_buses; /* the dma addrs of the pages */
+	const struct rte_memzone *mz;
+};
+
+/* A TX desc ring entry */
+union gve_tx_desc {
+	struct gve_tx_pkt_desc pkt; /* first desc for a packet */
+	struct gve_tx_seg_desc seg; /* subsequent descs for a packet */
+};
+
+struct gve_tx_queue {
+	volatile union gve_tx_desc *tx_desc_ring;
+	const struct rte_memzone *mz;
+	uint64_t tx_ring_phys_addr;
+
+	uint16_t nb_tx_desc;
+
+	/* Only valid for DQO_QPL queue format */
+	struct gve_queue_page_list *qpl;
+
+	uint16_t port_id;
+	uint16_t queue_id;
+
+	uint16_t ntfy_id;
+	volatile rte_be32_t *ntfy_addr;
+
+	struct gve_priv *hw;
+	const struct rte_memzone *qres_mz;
+	struct gve_queue_resources *qres;
+
+	/* Only valid for DQO_RDA queue format */
+	struct gve_tx_queue *complq;
+};
+
+struct gve_rx_queue {
+	volatile struct gve_rx_desc *rx_desc_ring;
+	volatile union gve_rx_data_slot *rx_data_ring;
+	const struct rte_memzone *mz;
+	const struct rte_memzone *data_mz;
+	uint64_t rx_ring_phys_addr;
+
+	uint16_t nb_rx_desc;
+
+	volatile rte_be32_t *ntfy_addr;
+
+	/* only valid for GQI_QPL queue format */
+	struct gve_queue_page_list *qpl;
+
+	struct gve_priv *hw;
+	const struct rte_memzone *qres_mz;
+	struct gve_queue_resources *qres;
+
+	uint16_t port_id;
+	uint16_t queue_id;
+	uint16_t ntfy_id;
+	uint16_t rx_buf_len;
+
+	/* Only valid for DQO_RDA queue format */
+	struct gve_rx_queue *bufq;
+};
+
+struct gve_priv {
+	struct gve_irq_db *irq_dbs; /* array of num_ntfy_blks */
+	const struct rte_memzone *irq_dbs_mz;
+	uint32_t mgmt_msix_idx;
+	rte_be32_t *cnt_array; /* array of num_event_counters */
+	const struct rte_memzone *cnt_array_mz;
+
+	uint16_t num_event_counters;
+	uint16_t tx_desc_cnt; /* txq size */
+	uint16_t rx_desc_cnt; /* rxq size */
+	uint16_t tx_pages_per_qpl; /* tx buffer length */
+	uint16_t rx_data_slot_cnt; /* rx buffer length */
+
+	/* Only valid for DQO_RDA queue format */
+	uint16_t tx_compq_size; /* tx completion queue size */
+	uint16_t rx_bufq_size; /* rx buff queue size */
+
+	uint64_t max_registered_pages;
+	uint64_t num_registered_pages; /* num pages registered with NIC */
+	uint16_t default_num_queues; /* default num queues to set up */
+	enum gve_queue_format queue_format; /* see enum gve_queue_format */
+	uint8_t enable_rsc;
+
+	uint16_t max_nb_txq;
+	uint16_t max_nb_rxq;
+	uint32_t num_ntfy_blks; /* spilt between TX and RX so must be even */
+
+	struct gve_registers __iomem *reg_bar0; /* see gve_register.h */
+	rte_be32_t __iomem *db_bar2; /* "array" of doorbells */
+	struct rte_pci_device *pci_dev;
+
+	/* Admin queue - see gve_adminq.h*/
+	union gve_adminq_command *adminq;
+	struct gve_dma_mem adminq_dma_mem;
+	uint32_t adminq_mask; /* masks prod_cnt to adminq size */
+	uint32_t adminq_prod_cnt; /* free-running count of AQ cmds executed */
+	uint32_t adminq_cmd_fail; /* free-running count of AQ cmds failed */
+	uint32_t adminq_timeouts; /* free-running count of AQ cmds timeouts */
+	/* free-running count of per AQ cmd executed */
+	uint32_t adminq_describe_device_cnt;
+	uint32_t adminq_cfg_device_resources_cnt;
+	uint32_t adminq_register_page_list_cnt;
+	uint32_t adminq_unregister_page_list_cnt;
+	uint32_t adminq_create_tx_queue_cnt;
+	uint32_t adminq_create_rx_queue_cnt;
+	uint32_t adminq_destroy_tx_queue_cnt;
+	uint32_t adminq_destroy_rx_queue_cnt;
+	uint32_t adminq_dcfg_device_resources_cnt;
+	uint32_t adminq_set_driver_parameter_cnt;
+	uint32_t adminq_report_stats_cnt;
+	uint32_t adminq_report_link_speed_cnt;
+	uint32_t adminq_get_ptype_map_cnt;
+
+	volatile uint32_t state_flags;
+
+	/* Gvnic device link speed from hypervisor. */
+	uint64_t link_speed;
+
+	uint16_t max_mtu;
+	struct rte_ether_addr dev_addr; /* mac address */
+
+	struct gve_queue_page_list *qpl;
+
+	struct gve_tx_queue **txqs;
+	struct gve_rx_queue **rxqs;
+};
+
+static inline bool
+gve_is_gqi(struct gve_priv *priv)
+{
+	return priv->queue_format == GVE_GQI_RDA_FORMAT ||
+		priv->queue_format == GVE_GQI_QPL_FORMAT;
+}
+
+static inline bool
+gve_get_admin_queue_ok(struct gve_priv *priv)
+{
+	return !!rte_bit_relaxed_get32(GVE_PRIV_FLAGS_ADMIN_QUEUE_OK,
+				       &priv->state_flags);
+}
+
+static inline void
+gve_set_admin_queue_ok(struct gve_priv *priv)
+{
+	rte_bit_relaxed_set32(GVE_PRIV_FLAGS_ADMIN_QUEUE_OK,
+			      &priv->state_flags);
+}
+
+static inline void
+gve_clear_admin_queue_ok(struct gve_priv *priv)
+{
+	rte_bit_relaxed_clear32(GVE_PRIV_FLAGS_ADMIN_QUEUE_OK,
+				&priv->state_flags);
+}
+
+static inline bool
+gve_get_device_resources_ok(struct gve_priv *priv)
+{
+	return !!rte_bit_relaxed_get32(GVE_PRIV_FLAGS_DEVICE_RESOURCES_OK,
+				       &priv->state_flags);
+}
+
+static inline void
+gve_set_device_resources_ok(struct gve_priv *priv)
+{
+	rte_bit_relaxed_set32(GVE_PRIV_FLAGS_DEVICE_RESOURCES_OK,
+			      &priv->state_flags);
+}
+
+static inline void
+gve_clear_device_resources_ok(struct gve_priv *priv)
+{
+	rte_bit_relaxed_clear32(GVE_PRIV_FLAGS_DEVICE_RESOURCES_OK,
+				&priv->state_flags);
+}
+
+static inline bool
+gve_get_device_rings_ok(struct gve_priv *priv)
+{
+	return !!rte_bit_relaxed_get32(GVE_PRIV_FLAGS_DEVICE_RINGS_OK,
+				       &priv->state_flags);
+}
+
+static inline void
+gve_set_device_rings_ok(struct gve_priv *priv)
+{
+	rte_bit_relaxed_set32(GVE_PRIV_FLAGS_DEVICE_RINGS_OK,
+			      &priv->state_flags);
+}
+
+static inline void
+gve_clear_device_rings_ok(struct gve_priv *priv)
+{
+	rte_bit_relaxed_clear32(GVE_PRIV_FLAGS_DEVICE_RINGS_OK,
+				&priv->state_flags);
+}
+
+#endif /* _GVE_ETHDEV_H_ */
diff --git a/drivers/net/gve/meson.build b/drivers/net/gve/meson.build
new file mode 100644
index 0000000000..d8ec64b3a3
--- /dev/null
+++ b/drivers/net/gve/meson.build
@@ -0,0 +1,14 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(C) 2022 Intel Corporation
+
+if is_windows
+    build = false
+    reason = 'not supported on Windows'
+    subdir_done()
+endif
+
+sources = files(
+        'base/gve_adminq.c',
+        'gve_ethdev.c',
+)
+includes += include_directories('base')
diff --git a/drivers/net/gve/version.map b/drivers/net/gve/version.map
new file mode 100644
index 0000000000..c2e0723b4c
--- /dev/null
+++ b/drivers/net/gve/version.map
@@ -0,0 +1,3 @@
+DPDK_22 {
+	local: *;
+};
diff --git a/drivers/net/meson.build b/drivers/net/meson.build
index e35652fe63..f1a0ee2cef 100644
--- a/drivers/net/meson.build
+++ b/drivers/net/meson.build
@@ -23,6 +23,7 @@ drivers = [
         'enic',
         'failsafe',
         'fm10k',
+        'gve',
         'hinic',
         'hns3',
         'i40e',
-- 
2.34.1