#include <rte_malloc.h>
#include <rte_kvargs.h>
+#include <rte_vdev.h>
#include "virtio_ethdev.h"
#include "virtio_logs.h"
for (i = 0; i < ETHER_ADDR_LEN; ++i)
dev->mac_addr[i] = ((const uint8_t *)src)[i];
else
- PMD_DRV_LOG(ERR, "not supported offset=%zu, len=%d\n",
+ PMD_DRV_LOG(ERR, "not supported offset=%zu, len=%d",
offset, length);
}
static void
-virtio_user_set_status(struct virtio_hw *hw, uint8_t status)
+virtio_user_reset(struct virtio_hw *hw)
{
struct virtio_user_dev *dev = virtio_user_get_dev(hw);
- if (status & VIRTIO_CONFIG_STATUS_DRIVER_OK)
- virtio_user_start_device(dev);
- dev->status = status;
+ if (dev->status & VIRTIO_CONFIG_STATUS_DRIVER_OK)
+ virtio_user_stop_device(dev);
}
static void
-virtio_user_reset(struct virtio_hw *hw)
+virtio_user_set_status(struct virtio_hw *hw, uint8_t status)
{
struct virtio_user_dev *dev = virtio_user_get_dev(hw);
- virtio_user_stop_device(dev);
+ if (status & VIRTIO_CONFIG_STATUS_DRIVER_OK)
+ virtio_user_start_device(dev);
+ else if (status == VIRTIO_CONFIG_STATUS_RESET)
+ virtio_user_reset(hw);
+ dev->status = status;
}
static uint8_t
{
struct virtio_user_dev *dev = virtio_user_get_dev(hw);
- return dev->features;
+ /* unmask feature bits defined in vhost user protocol */
+ return dev->device_features & VIRTIO_PMD_SUPPORTED_GUEST_FEATURES;
}
static void
{
struct virtio_user_dev *dev = virtio_user_get_dev(hw);
- dev->features = features;
+ dev->features = features & dev->device_features;
}
static uint8_t
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.
}
if (write(dev->kickfds[vq->vq_queue_index], &buf, sizeof(buf)) < 0)
- PMD_DRV_LOG(ERR, "failed to kick backend: %s\n",
+ PMD_DRV_LOG(ERR, "failed to kick backend: %s",
strerror(errno));
}
-static const struct virtio_pci_ops virtio_user_ops = {
+const struct virtio_pci_ops virtio_user_ops = {
.read_dev_cfg = virtio_user_read_dev_config,
.write_dev_cfg = virtio_user_write_dev_config,
.reset = virtio_user_reset,
.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,
VIRTIO_USER_ARG_PATH,
#define VIRTIO_USER_ARG_QUEUE_SIZE "queue_size"
VIRTIO_USER_ARG_QUEUE_SIZE,
+#define VIRTIO_USER_ARG_INTERFACE_NAME "iface"
+ VIRTIO_USER_ARG_INTERFACE_NAME,
NULL
};
*(char **)extra_args = strdup(value);
+ if (!*(char **)extra_args)
+ return -ENOMEM;
+
return 0;
}
return 0;
}
+static struct rte_vdev_driver virtio_user_driver;
+
static struct rte_eth_dev *
virtio_user_eth_dev_alloc(const char *name)
{
struct virtio_hw *hw;
struct virtio_user_dev *dev;
- eth_dev = rte_eth_dev_allocate(name, RTE_ETH_DEV_VIRTUAL);
+ eth_dev = rte_eth_dev_allocate(name);
if (!eth_dev) {
PMD_INIT_LOG(ERR, "cannot alloc rte_eth_dev");
return NULL;
return NULL;
}
- hw->vtpci_ops = &virtio_user_ops;
+ hw->port_id = data->port_id;
+ dev->port_id = data->port_id;
+ virtio_hw_internal[hw->port_id].vtpci_ops = &virtio_user_ops;
hw->use_msix = 0;
hw->modern = 0;
+ hw->use_simple_rxtx = 0;
hw->virtio_user_dev = dev;
data->dev_private = hw;
+ data->drv_name = virtio_user_driver.driver.name;
data->numa_node = SOCKET_ID_ANY;
data->kdrv = RTE_KDRV_NONE;
data->dev_flags = RTE_ETH_DEV_DETACHABLE;
- eth_dev->pci_dev = NULL;
eth_dev->driver = NULL;
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_free(hw);
+ rte_eth_dev_release_port(eth_dev);
+}
+
/* Dev initialization routine. Invoked once for each virtio vdev at
* EAL init time, see rte_eal_dev_init().
* Returns 0 on success.
*/
static int
-virtio_user_pmd_devinit(const char *name, const char *params)
+virtio_user_pmd_probe(const char *name, const char *params)
{
- struct rte_kvargs *kvlist;
+ struct rte_kvargs *kvlist = NULL;
struct rte_eth_dev *eth_dev;
struct virtio_hw *hw;
uint64_t queues = VIRTIO_USER_DEF_Q_NUM;
uint64_t cq = VIRTIO_USER_DEF_CQ_EN;
uint64_t queue_size = VIRTIO_USER_DEF_Q_SZ;
char *path = NULL;
+ char *ifname = NULL;
char *mac_addr = NULL;
int ret = -1;
if (!params || params[0] == '\0') {
- PMD_INIT_LOG(ERR, "arg %s is mandatory for virtio-user",
+ PMD_INIT_LOG(ERR, "arg %s is mandatory for virtio_user",
VIRTIO_USER_ARG_QUEUE_SIZE);
goto end;
}
goto end;
}
- if (rte_kvargs_count(kvlist, VIRTIO_USER_ARG_PATH) == 1)
- ret = rte_kvargs_process(kvlist, VIRTIO_USER_ARG_PATH,
- &get_string_arg, &path);
- if (ret < 0) {
+ if (rte_kvargs_count(kvlist, VIRTIO_USER_ARG_PATH) == 1) {
+ if (rte_kvargs_process(kvlist, VIRTIO_USER_ARG_PATH,
+ &get_string_arg, &path) < 0) {
PMD_INIT_LOG(ERR, "error to parse %s",
VIRTIO_USER_ARG_PATH);
goto end;
}
- else {
- PMD_INIT_LOG(ERR, "arg %s is mandatory for virtio-user\n",
+ } else {
+ PMD_INIT_LOG(ERR, "arg %s is mandatory for virtio_user",
VIRTIO_USER_ARG_QUEUE_SIZE);
goto end;
}
+ if (rte_kvargs_count(kvlist, VIRTIO_USER_ARG_INTERFACE_NAME) == 1) {
+ if (is_vhost_user_by_type(path)) {
+ PMD_INIT_LOG(ERR,
+ "arg %s applies only to vhost-kernel backend",
+ VIRTIO_USER_ARG_INTERFACE_NAME);
+ goto end;
+ }
+
+ if (rte_kvargs_process(kvlist, VIRTIO_USER_ARG_INTERFACE_NAME,
+ &get_string_arg, &ifname) < 0) {
+ PMD_INIT_LOG(ERR, "error to parse %s",
+ VIRTIO_USER_ARG_INTERFACE_NAME);
+ goto end;
+ }
+ }
+
if (rte_kvargs_count(kvlist, VIRTIO_USER_ARG_MAC) == 1) {
- ret = rte_kvargs_process(kvlist, VIRTIO_USER_ARG_MAC,
- &get_string_arg, &mac_addr);
- if (ret < 0) {
+ if (rte_kvargs_process(kvlist, VIRTIO_USER_ARG_MAC,
+ &get_string_arg, &mac_addr) < 0) {
PMD_INIT_LOG(ERR, "error to parse %s",
VIRTIO_USER_ARG_MAC);
goto end;
}
if (rte_kvargs_count(kvlist, VIRTIO_USER_ARG_QUEUE_SIZE) == 1) {
- ret = rte_kvargs_process(kvlist, VIRTIO_USER_ARG_QUEUE_SIZE,
- &get_integer_arg, &queue_size);
- if (ret < 0) {
+ if (rte_kvargs_process(kvlist, VIRTIO_USER_ARG_QUEUE_SIZE,
+ &get_integer_arg, &queue_size) < 0) {
PMD_INIT_LOG(ERR, "error to parse %s",
VIRTIO_USER_ARG_QUEUE_SIZE);
goto end;
}
if (rte_kvargs_count(kvlist, VIRTIO_USER_ARG_QUEUES_NUM) == 1) {
- ret = rte_kvargs_process(kvlist, VIRTIO_USER_ARG_QUEUES_NUM,
- &get_integer_arg, &queues);
- if (ret < 0) {
+ if (rte_kvargs_process(kvlist, VIRTIO_USER_ARG_QUEUES_NUM,
+ &get_integer_arg, &queues) < 0) {
PMD_INIT_LOG(ERR, "error to parse %s",
VIRTIO_USER_ARG_QUEUES_NUM);
goto end;
}
if (rte_kvargs_count(kvlist, VIRTIO_USER_ARG_CQ_NUM) == 1) {
- ret = rte_kvargs_process(kvlist, VIRTIO_USER_ARG_CQ_NUM,
- &get_integer_arg, &cq);
- if (ret < 0) {
+ if (rte_kvargs_process(kvlist, VIRTIO_USER_ARG_CQ_NUM,
+ &get_integer_arg, &cq) < 0) {
PMD_INIT_LOG(ERR, "error to parse %s",
VIRTIO_USER_ARG_CQ_NUM);
goto end;
goto end;
}
+ if (queues > VIRTIO_MAX_VIRTQUEUE_PAIRS) {
+ PMD_INIT_LOG(ERR, "arg %s %" PRIu64 " exceeds the limit %u",
+ VIRTIO_USER_ARG_QUEUES_NUM, queues,
+ VIRTIO_MAX_VIRTQUEUE_PAIRS);
+ goto end;
+ }
+
eth_dev = virtio_user_eth_dev_alloc(name);
if (!eth_dev) {
- PMD_INIT_LOG(ERR, "virtio-user fails to alloc device");
+ 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,
- queue_size, mac_addr) < 0)
+ queue_size, mac_addr, &ifname) < 0) {
+ PMD_INIT_LOG(ERR, "virtio_user_dev_init fails");
+ virtio_user_eth_dev_free(eth_dev);
goto end;
+ }
/* previously called by rte_eal_pci_probe() for physical dev */
if (eth_virtio_dev_init(eth_dev) < 0) {
PMD_INIT_LOG(ERR, "eth_virtio_dev_init fails");
+ virtio_user_eth_dev_free(eth_dev);
goto end;
}
ret = 0;
end:
+ if (kvlist)
+ rte_kvargs_free(kvlist);
if (path)
free(path);
if (mac_addr)
free(mac_addr);
+ if (ifname)
+ free(ifname);
return ret;
}
/** Called by rte_eth_dev_detach() */
static int
-virtio_user_pmd_devuninit(const char *name)
+virtio_user_pmd_remove(const char *name)
{
struct rte_eth_dev *eth_dev;
struct virtio_hw *hw;
if (!name)
return -EINVAL;
- PMD_DRV_LOG(INFO, "Un-Initializing %s\n", name);
+ PMD_DRV_LOG(INFO, "Un-Initializing %s", name);
eth_dev = rte_eth_dev_allocated(name);
if (!eth_dev)
return -ENODEV;
return 0;
}
-static struct rte_driver virtio_user_driver = {
- .type = PMD_VDEV,
- .init = virtio_user_pmd_devinit,
- .uninit = virtio_user_pmd_devuninit,
+static struct rte_vdev_driver virtio_user_driver = {
+ .probe = virtio_user_pmd_probe,
+ .remove = virtio_user_pmd_remove,
};
-PMD_REGISTER_DRIVER(virtio_user_driver, virtio_user);
-DRIVER_REGISTER_PARAM_STRING(virtio_user,
+RTE_PMD_REGISTER_VDEV(net_virtio_user, virtio_user_driver);
+RTE_PMD_REGISTER_ALIAS(net_virtio_user, virtio_user);
+RTE_PMD_REGISTER_PARAM_STRING(net_virtio_user,
"path=<path> "
"mac=<mac addr> "
"cq=<int> "
"queue_size=<int> "
- "queues=<int>");
+ "queues=<int> "
+ "iface=<string>");
git.droids-corp.org / dpdk.git / blobdiff