-/*-
- * BSD LICENSE
- *
- * Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2016 Intel Corporation
*/
#include <stdint.h>
#include <sys/types.h>
#include <unistd.h>
#include <fcntl.h>
-#include <sys/types.h>
+#include <linux/major.h>
+#include <sys/stat.h>
+#include <sys/sysmacros.h>
#include <sys/socket.h>
#include <rte_malloc.h>
#include <rte_kvargs.h>
-#include <rte_ethdev_vdev.h>
-#include <rte_vdev.h>
+#include <ethdev_vdev.h>
+#include <rte_bus_vdev.h>
#include <rte_alarm.h>
+#include <rte_cycles.h>
#include "virtio_ethdev.h"
#include "virtio_logs.h"
-#include "virtio_pci.h"
+#include "virtio.h"
#include "virtqueue.h"
#include "virtio_rxtx.h"
#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)
-
-static void
-virtio_user_delayed_handler(void *param)
-{
- struct virtio_hw *hw = (struct virtio_hw *)param;
- struct rte_eth_dev *dev = &rte_eth_devices[hw->port_id];
-
- rte_intr_callback_unregister(dev->intr_handle,
- virtio_interrupt_handler,
- dev);
-}
+#define virtio_user_get_dev(hwp) container_of(hwp, struct virtio_user_dev, hw)
static void
virtio_user_read_dev_config(struct virtio_hw *hw, size_t offset,
struct virtio_user_dev *dev = virtio_user_get_dev(hw);
if (offset == offsetof(struct virtio_net_config, mac) &&
- length == ETHER_ADDR_LEN) {
- for (i = 0; i < ETHER_ADDR_LEN; ++i)
+ length == RTE_ETHER_ADDR_LEN) {
+ for (i = 0; i < RTE_ETHER_ADDR_LEN; ++i)
((uint8_t *)dst)[i] = dev->mac_addr[i];
return;
}
if (offset == offsetof(struct virtio_net_config, status)) {
- char buf[128];
-
- if (dev->vhostfd >= 0) {
- int r;
- int flags;
-
- flags = fcntl(dev->vhostfd, F_GETFL);
- fcntl(dev->vhostfd, F_SETFL, flags | O_NONBLOCK);
- r = recv(dev->vhostfd, buf, 128, MSG_PEEK);
- if (r == 0 || (r < 0 && errno != EAGAIN)) {
- dev->status &= (~VIRTIO_NET_S_LINK_UP);
- PMD_DRV_LOG(ERR, "virtio-user port %u is down",
- hw->port_id);
- /* Only client mode is available now. Once the
- * connection is broken, it can never be up
- * again. Besides, this function could be called
- * in the process of interrupt handling,
- * callback cannot be unregistered here, set an
- * alarm to do it.
- */
- rte_eal_alarm_set(1,
- virtio_user_delayed_handler,
- (void *)hw);
- } else {
- dev->status |= VIRTIO_NET_S_LINK_UP;
- }
- fcntl(dev->vhostfd, F_SETFL, flags & (~O_NONBLOCK));
- }
- *(uint16_t *)dst = dev->status;
+ virtio_user_dev_update_link_state(dev);
+
+ *(uint16_t *)dst = dev->net_status;
}
if (offset == offsetof(struct virtio_net_config, max_virtqueue_pairs))
struct virtio_user_dev *dev = virtio_user_get_dev(hw);
if ((offset == offsetof(struct virtio_net_config, mac)) &&
- (length == ETHER_ADDR_LEN))
- for (i = 0; i < ETHER_ADDR_LEN; ++i)
+ (length == RTE_ETHER_ADDR_LEN)) {
+ for (i = 0; i < RTE_ETHER_ADDR_LEN; ++i)
dev->mac_addr[i] = ((const uint8_t *)src)[i];
- else
+ virtio_user_dev_set_mac(dev);
+ virtio_user_dev_get_mac(dev);
+ } else {
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)
{
struct virtio_user_dev *dev = virtio_user_get_dev(hw);
+ uint8_t old_status = dev->status;
+ if (status & VIRTIO_CONFIG_STATUS_FEATURES_OK &&
+ ~old_status & VIRTIO_CONFIG_STATUS_FEATURES_OK)
+ virtio_user_dev_set_features(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;
+
+ virtio_user_dev_set_status(dev, status);
}
static uint8_t
{
struct virtio_user_dev *dev = virtio_user_get_dev(hw);
+ virtio_user_dev_update_status(dev);
+
return dev->status;
}
struct virtio_user_dev *dev = virtio_user_get_dev(hw);
/* unmask feature bits defined in vhost user protocol */
- return dev->device_features & VIRTIO_PMD_SUPPORTED_GUEST_FEATURES;
+ return (dev->device_features | dev->frontend_features) &
+ VIRTIO_PMD_SUPPORTED_GUEST_FEATURES;
}
static void
{
struct virtio_user_dev *dev = virtio_user_get_dev(hw);
- dev->features = features & dev->device_features;
+ dev->features = features & (dev->device_features | dev->frontend_features);
+}
+
+static int
+virtio_user_features_ok(struct virtio_hw *hw __rte_unused)
+{
+ return 0;
}
static uint8_t
/* rxq interrupts and config interrupt are separated in virtio-user,
* here we only report config change.
*/
- return VIRTIO_PCI_ISR_CONFIG;
+ return VIRTIO_ISR_CONFIG;
}
static uint16_t
return dev->queue_size;
}
-static int
-virtio_user_setup_queue(struct virtio_hw *hw, struct virtqueue *vq)
+static void
+virtio_user_setup_queue_packed(struct virtqueue *vq,
+ struct virtio_user_dev *dev)
+{
+ uint16_t queue_idx = vq->vq_queue_index;
+ struct vring_packed *vring;
+ uint64_t desc_addr;
+ uint64_t avail_addr;
+ uint64_t used_addr;
+ uint16_t i;
+
+ vring = &dev->packed_vrings[queue_idx];
+ desc_addr = (uintptr_t)vq->vq_ring_virt_mem;
+ avail_addr = desc_addr + vq->vq_nentries *
+ sizeof(struct vring_packed_desc);
+ used_addr = RTE_ALIGN_CEIL(avail_addr +
+ sizeof(struct vring_packed_desc_event),
+ VIRTIO_VRING_ALIGN);
+ vring->num = vq->vq_nentries;
+ vring->desc = (void *)(uintptr_t)desc_addr;
+ vring->driver = (void *)(uintptr_t)avail_addr;
+ vring->device = (void *)(uintptr_t)used_addr;
+ dev->packed_queues[queue_idx].avail_wrap_counter = true;
+ dev->packed_queues[queue_idx].used_wrap_counter = true;
+
+ for (i = 0; i < vring->num; i++)
+ vring->desc[i].flags = 0;
+}
+
+static void
+virtio_user_setup_queue_split(struct virtqueue *vq, struct virtio_user_dev *dev)
{
- struct virtio_user_dev *dev = virtio_user_get_dev(hw);
uint16_t queue_idx = vq->vq_queue_index;
uint64_t desc_addr, avail_addr, used_addr;
avail_addr = desc_addr + vq->vq_nentries * sizeof(struct vring_desc);
used_addr = RTE_ALIGN_CEIL(avail_addr + offsetof(struct vring_avail,
ring[vq->vq_nentries]),
- VIRTIO_PCI_VRING_ALIGN);
+ VIRTIO_VRING_ALIGN);
dev->vrings[queue_idx].num = vq->vq_nentries;
dev->vrings[queue_idx].desc = (void *)(uintptr_t)desc_addr;
dev->vrings[queue_idx].avail = (void *)(uintptr_t)avail_addr;
dev->vrings[queue_idx].used = (void *)(uintptr_t)used_addr;
+}
+
+static int
+virtio_user_setup_queue(struct virtio_hw *hw, struct virtqueue *vq)
+{
+ struct virtio_user_dev *dev = virtio_user_get_dev(hw);
+
+ if (virtio_with_packed_queue(hw))
+ virtio_user_setup_queue_packed(vq, dev);
+ else
+ virtio_user_setup_queue_split(vq, dev);
return 0;
}
uint64_t buf = 1;
struct virtio_user_dev *dev = virtio_user_get_dev(hw);
- if (hw->cvq && (hw->cvq->vq == vq)) {
- virtio_user_handle_cq(dev, vq->vq_queue_index);
+ if (hw->cvq && (virtnet_cq_to_vq(hw->cvq) == vq)) {
+ if (virtio_with_packed_queue(vq->hw))
+ virtio_user_handle_cq_packed(dev, vq->vq_queue_index);
+ else
+ virtio_user_handle_cq(dev, vq->vq_queue_index);
return;
}
strerror(errno));
}
-const struct virtio_pci_ops virtio_user_ops = {
+static int
+virtio_user_dev_close(struct virtio_hw *hw)
+{
+ struct virtio_user_dev *dev = virtio_user_get_dev(hw);
+
+ virtio_user_dev_uninit(dev);
+
+ return 0;
+}
+
+const struct virtio_ops virtio_user_ops = {
.read_dev_cfg = virtio_user_read_dev_config,
.write_dev_cfg = virtio_user_write_dev_config,
- .reset = virtio_user_reset,
.get_status = virtio_user_get_status,
.set_status = virtio_user_set_status,
.get_features = virtio_user_get_features,
.set_features = virtio_user_set_features,
+ .features_ok = virtio_user_features_ok,
.get_isr = virtio_user_get_isr,
.set_config_irq = virtio_user_set_config_irq,
.set_queue_irq = virtio_user_set_queue_irq,
.setup_queue = virtio_user_setup_queue,
.del_queue = virtio_user_del_queue,
.notify_queue = virtio_user_notify_queue,
+ .dev_close = virtio_user_dev_close,
};
static const char *valid_args[] = {
VIRTIO_USER_ARG_QUEUE_SIZE,
#define VIRTIO_USER_ARG_INTERFACE_NAME "iface"
VIRTIO_USER_ARG_INTERFACE_NAME,
+#define VIRTIO_USER_ARG_SERVER_MODE "server"
+ VIRTIO_USER_ARG_SERVER_MODE,
+#define VIRTIO_USER_ARG_MRG_RXBUF "mrg_rxbuf"
+ VIRTIO_USER_ARG_MRG_RXBUF,
+#define VIRTIO_USER_ARG_IN_ORDER "in_order"
+ VIRTIO_USER_ARG_IN_ORDER,
+#define VIRTIO_USER_ARG_PACKED_VQ "packed_vq"
+ VIRTIO_USER_ARG_PACKED_VQ,
+#define VIRTIO_USER_ARG_SPEED "speed"
+ VIRTIO_USER_ARG_SPEED,
+#define VIRTIO_USER_ARG_VECTORIZED "vectorized"
+ VIRTIO_USER_ARG_VECTORIZED,
NULL
};
#define VIRTIO_USER_DEF_CQ_EN 0
#define VIRTIO_USER_DEF_Q_NUM 1
#define VIRTIO_USER_DEF_Q_SZ 256
+#define VIRTIO_USER_DEF_SERVER_MODE 0
static int
get_string_arg(const char *key __rte_unused,
get_integer_arg(const char *key __rte_unused,
const char *value, void *extra_args)
{
+ uint64_t integer = 0;
if (!value || !extra_args)
return -EINVAL;
+ errno = 0;
+ integer = strtoull(value, NULL, 0);
+ /* extra_args keeps default value, it should be replaced
+ * only in case of successful parsing of the 'value' arg
+ */
+ if (errno == 0)
+ *(uint64_t *)extra_args = integer;
+ return -errno;
+}
- *(uint64_t *)extra_args = strtoull(value, NULL, 0);
+static uint32_t
+vdpa_dynamic_major_num(void)
+{
+ FILE *fp;
+ char *line = NULL;
+ size_t size = 0;
+ char name[11];
+ bool found = false;
+ uint32_t num;
+
+ fp = fopen("/proc/devices", "r");
+ if (fp == NULL) {
+ PMD_INIT_LOG(ERR, "Cannot open /proc/devices: %s",
+ strerror(errno));
+ return UNNAMED_MAJOR;
+ }
- return 0;
+ while (getline(&line, &size, fp) > 0) {
+ char *stripped = line + strspn(line, " ");
+ if ((sscanf(stripped, "%u %10s", &num, name) == 2) &&
+ (strncmp(name, "vhost-vdpa", 10) == 0)) {
+ found = true;
+ break;
+ }
+ }
+ free(line);
+ fclose(fp);
+ return found ? num : UNNAMED_MAJOR;
}
-static struct rte_vdev_driver virtio_user_driver;
+static enum virtio_user_backend_type
+virtio_user_backend_type(const char *path)
+{
+ struct stat sb;
+
+ if (stat(path, &sb) == -1) {
+ if (errno == ENOENT)
+ return VIRTIO_USER_BACKEND_VHOST_USER;
+
+ PMD_INIT_LOG(ERR, "Stat fails: %s (%s)", path,
+ strerror(errno));
+ return VIRTIO_USER_BACKEND_UNKNOWN;
+ }
+
+ if (S_ISSOCK(sb.st_mode)) {
+ return VIRTIO_USER_BACKEND_VHOST_USER;
+ } else if (S_ISCHR(sb.st_mode)) {
+ if (major(sb.st_rdev) == MISC_MAJOR)
+ return VIRTIO_USER_BACKEND_VHOST_KERNEL;
+ if (major(sb.st_rdev) == vdpa_dynamic_major_num())
+ return VIRTIO_USER_BACKEND_VHOST_VDPA;
+ }
+ return VIRTIO_USER_BACKEND_UNKNOWN;
+}
static struct rte_eth_dev *
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);
- rte_free(hw);
- return NULL;
- }
+ dev = eth_dev->data->dev_private;
+ hw = &dev->hw;
hw->port_id = data->port_id;
- dev->port_id = data->port_id;
- virtio_hw_internal[hw->port_id].vtpci_ops = &virtio_user_ops;
- /*
- * MSIX is required to enable LSC (see virtio_init_device).
- * Here just pretend that we support msix.
- */
- hw->use_msix = 1;
- hw->modern = 0;
- hw->use_simple_rxtx = 0;
- hw->virtio_user_dev = dev;
- data->dev_flags = RTE_ETH_DEV_DETACHABLE;
+ VIRTIO_OPS(hw) = &virtio_user_ops;
+
+ hw->intr_lsc = 1;
+ hw->use_vec_rx = 0;
+ hw->use_vec_tx = 0;
+ hw->use_inorder_rx = 0;
+ hw->use_inorder_tx = 0;
+
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);
}
* 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;
uint64_t queue_size = VIRTIO_USER_DEF_Q_SZ;
+ uint64_t server_mode = VIRTIO_USER_DEF_SERVER_MODE;
+ uint64_t mrg_rxbuf = 1;
+ uint64_t in_order = 1;
+ uint64_t packed_vq = 0;
+ uint64_t vectorized = 0;
char *path = NULL;
char *ifname = NULL;
char *mac_addr = NULL;
int ret = -1;
- kvlist = rte_kvargs_parse(rte_vdev_device_args(dev), valid_args);
+ 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(vdev);
+ eth_dev = rte_eth_dev_attach_secondary(name);
+ if (!eth_dev) {
+ PMD_INIT_LOG(ERR, "Failed to probe %s", name);
+ return -1;
+ }
+
+ dev = eth_dev->data->dev_private;
+ hw = &dev->hw;
+ VIRTIO_OPS(hw) = &virtio_user_ops;
+
+ if (eth_virtio_dev_init(eth_dev) < 0) {
+ PMD_INIT_LOG(ERR, "eth_virtio_dev_init fails");
+ rte_eth_dev_release_port(eth_dev);
+ return -1;
+ }
+
+ eth_dev->dev_ops = &virtio_user_secondary_eth_dev_ops;
+ eth_dev->device = &vdev->device;
+ rte_eth_dev_probing_finish(eth_dev);
+ return 0;
+ }
+
+ kvlist = rte_kvargs_parse(rte_vdev_device_args(vdev), valid_args);
if (!kvlist) {
PMD_INIT_LOG(ERR, "error when parsing param");
goto end;
}
} else {
PMD_INIT_LOG(ERR, "arg %s is mandatory for virtio_user",
- VIRTIO_USER_ARG_QUEUE_SIZE);
+ VIRTIO_USER_ARG_PATH);
+ goto end;
+ }
+
+ backend_type = virtio_user_backend_type(path);
+ if (backend_type == VIRTIO_USER_BACKEND_UNKNOWN) {
+ PMD_INIT_LOG(ERR,
+ "unable to determine backend type for path %s",
+ path);
goto end;
}
+ PMD_INIT_LOG(INFO, "Backend type detected: %s",
+ virtio_user_backend_strings[backend_type]);
if (rte_kvargs_count(kvlist, VIRTIO_USER_ARG_INTERFACE_NAME) == 1) {
- if (is_vhost_user_by_type(path)) {
+ if (backend_type != VIRTIO_USER_BACKEND_VHOST_KERNEL) {
PMD_INIT_LOG(ERR,
"arg %s applies only to vhost-kernel backend",
VIRTIO_USER_ARG_INTERFACE_NAME);
}
}
+ if (rte_kvargs_count(kvlist, VIRTIO_USER_ARG_SERVER_MODE) == 1) {
+ if (rte_kvargs_process(kvlist, VIRTIO_USER_ARG_SERVER_MODE,
+ &get_integer_arg, &server_mode) < 0) {
+ PMD_INIT_LOG(ERR, "error to parse %s",
+ VIRTIO_USER_ARG_SERVER_MODE);
+ goto end;
+ }
+ }
+
if (rte_kvargs_count(kvlist, VIRTIO_USER_ARG_CQ_NUM) == 1) {
if (rte_kvargs_process(kvlist, VIRTIO_USER_ARG_CQ_NUM,
&get_integer_arg, &cq) < 0) {
cq = 1;
}
+ if (rte_kvargs_count(kvlist, VIRTIO_USER_ARG_PACKED_VQ) == 1) {
+ if (rte_kvargs_process(kvlist, VIRTIO_USER_ARG_PACKED_VQ,
+ &get_integer_arg, &packed_vq) < 0) {
+ PMD_INIT_LOG(ERR, "error to parse %s",
+ VIRTIO_USER_ARG_PACKED_VQ);
+ goto end;
+ }
+ }
+
+ if (rte_kvargs_count(kvlist, VIRTIO_USER_ARG_VECTORIZED) == 1) {
+ if (rte_kvargs_process(kvlist, VIRTIO_USER_ARG_VECTORIZED,
+ &get_integer_arg, &vectorized) < 0) {
+ PMD_INIT_LOG(ERR, "error to parse %s",
+ VIRTIO_USER_ARG_VECTORIZED);
+ goto end;
+ }
+ }
+
if (queues > 1 && cq == 0) {
PMD_INIT_LOG(ERR, "multi-q requires ctrl-q");
goto end;
goto end;
}
- if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
- eth_dev = virtio_user_eth_dev_alloc(dev);
- if (!eth_dev) {
- PMD_INIT_LOG(ERR, "virtio_user fails to alloc device");
+ if (rte_kvargs_count(kvlist, VIRTIO_USER_ARG_MRG_RXBUF) == 1) {
+ if (rte_kvargs_process(kvlist, VIRTIO_USER_ARG_MRG_RXBUF,
+ &get_integer_arg, &mrg_rxbuf) < 0) {
+ PMD_INIT_LOG(ERR, "error to parse %s",
+ VIRTIO_USER_ARG_MRG_RXBUF);
goto end;
}
+ }
- hw = eth_dev->data->dev_private;
- if (virtio_user_dev_init(hw->virtio_user_dev, path, queues, cq,
- queue_size, mac_addr, &ifname) < 0) {
- PMD_INIT_LOG(ERR, "virtio_user_dev_init fails");
- virtio_user_eth_dev_free(eth_dev);
+ if (rte_kvargs_count(kvlist, VIRTIO_USER_ARG_IN_ORDER) == 1) {
+ if (rte_kvargs_process(kvlist, VIRTIO_USER_ARG_IN_ORDER,
+ &get_integer_arg, &in_order) < 0) {
+ PMD_INIT_LOG(ERR, "error to parse %s",
+ VIRTIO_USER_ARG_IN_ORDER);
goto end;
}
- } else {
- eth_dev = rte_eth_dev_attach_secondary(rte_vdev_device_name(dev));
- if (!eth_dev)
- goto end;
}
- /* previously called by rte_pci_probe() for physical dev */
+ eth_dev = virtio_user_eth_dev_alloc(vdev);
+ if (!eth_dev) {
+ PMD_INIT_LOG(ERR, "virtio_user fails to alloc device");
+ goto end;
+ }
+
+ 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");
+ virtio_user_eth_dev_free(eth_dev);
+ goto end;
+ }
+
+ /*
+ * Virtio-user requires using virtual addresses for the descriptors
+ * buffers, whatever other devices require
+ */
+ hw->use_va = true;
+
+ /* previously called by pci probing for physical dev */
if (eth_virtio_dev_init(eth_dev) < 0) {
PMD_INIT_LOG(ERR, "eth_virtio_dev_init fails");
+ virtio_user_dev_uninit(dev);
virtio_user_eth_dev_free(eth_dev);
goto end;
}
+
+ if (vectorized) {
+ if (packed_vq) {
+#if defined(CC_AVX512_SUPPORT) || defined(RTE_ARCH_ARM)
+ hw->use_vec_rx = 1;
+ hw->use_vec_tx = 1;
+#else
+ PMD_INIT_LOG(INFO,
+ "building environment do not support packed ring vectorized");
+#endif
+ } else {
+ hw->use_vec_rx = 1;
+ }
+ }
+
+ rte_eth_dev_probing_finish(eth_dev);
ret = 0;
end:
- if (kvlist)
- rte_kvargs_free(kvlist);
- if (path)
- free(path);
- if (mac_addr)
- free(mac_addr);
- if (ifname)
- free(ifname);
+ rte_kvargs_free(kvlist);
+ free(path);
+ free(mac_addr);
+ free(ifname);
return ret;
}
-/** Called by rte_eth_dev_detach() */
static int
virtio_user_pmd_remove(struct rte_vdev_device *vdev)
{
const char *name;
struct rte_eth_dev *eth_dev;
- struct virtio_hw *hw;
- struct virtio_user_dev *dev;
if (!vdev)
return -EINVAL;
name = rte_vdev_device_name(vdev);
PMD_DRV_LOG(INFO, "Un-Initializing %s", name);
eth_dev = rte_eth_dev_allocated(name);
+ /* Port has already been released by close. */
if (!eth_dev)
- return -ENODEV;
+ return 0;
+
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+ return rte_eth_dev_release_port(eth_dev);
/* make sure the device is stopped, queues freed */
- rte_eth_dev_close(eth_dev->data->port_id);
+ return rte_eth_dev_close(eth_dev->data->port_id);
+}
- hw = eth_dev->data->dev_private;
- dev = hw->virtio_user_dev;
- virtio_user_dev_uninit(dev);
+static int virtio_user_pmd_dma_map(struct rte_vdev_device *vdev, void *addr,
+ uint64_t iova, size_t len)
+{
+ const char *name;
+ struct rte_eth_dev *eth_dev;
+ struct virtio_user_dev *dev;
- rte_free(eth_dev->data->dev_private);
- rte_eth_dev_release_port(eth_dev);
+ if (!vdev)
+ return -EINVAL;
+
+ name = rte_vdev_device_name(vdev);
+ eth_dev = rte_eth_dev_allocated(name);
+ /* Port has already been released by close. */
+ if (!eth_dev)
+ return 0;
+
+ dev = eth_dev->data->dev_private;
+
+ if (dev->ops->dma_map)
+ return dev->ops->dma_map(dev, addr, iova, len);
+
+ return 0;
+}
+
+static int virtio_user_pmd_dma_unmap(struct rte_vdev_device *vdev, void *addr,
+ uint64_t iova, size_t len)
+{
+ const char *name;
+ struct rte_eth_dev *eth_dev;
+ struct virtio_user_dev *dev;
+
+ if (!vdev)
+ return -EINVAL;
+
+ name = rte_vdev_device_name(vdev);
+ eth_dev = rte_eth_dev_allocated(name);
+ /* Port has already been released by close. */
+ if (!eth_dev)
+ return 0;
+
+ dev = eth_dev->data->dev_private;
+
+ if (dev->ops->dma_unmap)
+ return dev->ops->dma_unmap(dev, addr, iova, len);
return 0;
}
static struct rte_vdev_driver virtio_user_driver = {
.probe = virtio_user_pmd_probe,
.remove = virtio_user_pmd_remove,
+ .dma_map = virtio_user_pmd_dma_map,
+ .dma_unmap = virtio_user_pmd_dma_unmap,
};
RTE_PMD_REGISTER_VDEV(net_virtio_user, virtio_user_driver);
"cq=<int> "
"queue_size=<int> "
"queues=<int> "
- "iface=<string>");
+ "iface=<string> "
+ "server=<0|1> "
+ "mrg_rxbuf=<0|1> "
+ "in_order=<0|1> "
+ "packed_vq=<0|1> "
+ "speed=<int> "
+ "vectorized=<0|1>");
git.droids-corp.org / dpdk.git / blobdiff