@@ -754,3 +754,8 @@ CONFIG_RTE_APP_CRYPTO_PERF=y
# Compile the eventdev application
#
CONFIG_RTE_APP_EVENTDEV=y
+
+#
+# Compile the vdev bus
+#
+CONFIG_RTE_LIBRTE_VDEV_BUS=y
@@ -38,4 +38,7 @@ DEPDIRS-dpaa = $(core-libs)
DIRS-$(CONFIG_RTE_LIBRTE_FSLMC_BUS) += fslmc
DEPDIRS-fslmc = $(core-libs)
+DIRS-$(CONFIG_RTE_LIBRTE_VDEV_BUS) += vdev
+DEPDIRS-vdev = $(core-libs)
+
include $(RTE_SDK)/mk/rte.subdir.mk
new file mode 100644
@@ -0,0 +1,55 @@
+# BSD LICENSE
+#
+# Copyright(c) 2017 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.
+
+include $(RTE_SDK)/mk/rte.vars.mk
+
+#
+# library name
+#
+LIB = librte_bus_vdev.a
+
+CFLAGS += -O3
+CFLAGS += $(WERROR_FLAGS)
+
+# versioning export map
+EXPORT_MAP := rte_bus_vdev_version.map
+
+# library version
+LIBABIVER := 1
+
+SRCS-y += vdev.c
+
+#
+# Export include files
+#
+SYMLINK-y-include += rte_vdev.h
+
+include $(RTE_SDK)/mk/rte.lib.mk
new file mode 100644
@@ -0,0 +1,8 @@
+DPDK_17.11 {
+ global:
+
+ rte_vdev_init;
+ rte_vdev_register;
+ rte_vdev_uninit;
+ rte_vdev_unregister;
+};
new file mode 100644
@@ -0,0 +1,153 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2016 RehiveTech. 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 RehiveTech 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.
+ */
+
+#ifndef RTE_VDEV_H
+#define RTE_VDEV_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <sys/queue.h>
+#include <rte_dev.h>
+#include <rte_devargs.h>
+
+struct rte_vdev_device {
+ TAILQ_ENTRY(rte_vdev_device) next; /**< Next attached vdev */
+ struct rte_device device; /**< Inherit core device */
+};
+
+/**
+ * @internal
+ * Helper macro for drivers that need to convert to struct rte_vdev_device.
+ */
+#define RTE_DEV_TO_VDEV(ptr) \
+ container_of(ptr, struct rte_vdev_device, device)
+
+static inline const char *
+rte_vdev_device_name(const struct rte_vdev_device *dev)
+{
+ if (dev && dev->device.name)
+ return dev->device.name;
+ return NULL;
+}
+
+static inline const char *
+rte_vdev_device_args(const struct rte_vdev_device *dev)
+{
+ if (dev && dev->device.devargs)
+ return dev->device.devargs->args;
+ return "";
+}
+
+/** Double linked list of virtual device drivers. */
+TAILQ_HEAD(vdev_driver_list, rte_vdev_driver);
+
+/**
+ * Probe function called for each virtual device driver once.
+ */
+typedef int (rte_vdev_probe_t)(struct rte_vdev_device *dev);
+
+/**
+ * Remove function called for each virtual device driver once.
+ */
+typedef int (rte_vdev_remove_t)(struct rte_vdev_device *dev);
+
+/**
+ * A virtual device driver abstraction.
+ */
+struct rte_vdev_driver {
+ TAILQ_ENTRY(rte_vdev_driver) next; /**< Next in list. */
+ struct rte_driver driver; /**< Inherited general driver. */
+ rte_vdev_probe_t *probe; /**< Virtual device probe function. */
+ rte_vdev_remove_t *remove; /**< Virtual device remove function. */
+};
+
+/**
+ * Register a virtual device driver.
+ *
+ * @param driver
+ * A pointer to a rte_vdev_driver structure describing the driver
+ * to be registered.
+ */
+void rte_vdev_register(struct rte_vdev_driver *driver);
+
+/**
+ * Unregister a virtual device driver.
+ *
+ * @param driver
+ * A pointer to a rte_vdev_driver structure describing the driver
+ * to be unregistered.
+ */
+void rte_vdev_unregister(struct rte_vdev_driver *driver);
+
+#define RTE_PMD_REGISTER_VDEV(nm, vdrv)\
+RTE_INIT(vdrvinitfn_ ##vdrv);\
+static const char *vdrvinit_ ## nm ## _alias;\
+static void vdrvinitfn_ ##vdrv(void)\
+{\
+ (vdrv).driver.name = RTE_STR(nm);\
+ (vdrv).driver.alias = vdrvinit_ ## nm ## _alias;\
+ rte_vdev_register(&vdrv);\
+} \
+RTE_PMD_EXPORT_NAME(nm, __COUNTER__)
+
+#define RTE_PMD_REGISTER_ALIAS(nm, alias)\
+static const char *vdrvinit_ ## nm ## _alias = RTE_STR(alias)
+
+/**
+ * Initialize a driver specified by name.
+ *
+ * @param name
+ * The pointer to a driver name to be initialized.
+ * @param args
+ * The pointer to arguments used by driver initialization.
+ * @return
+ * 0 on success, negative on error
+ */
+int rte_vdev_init(const char *name, const char *args);
+
+/**
+ * Uninitalize a driver specified by name.
+ *
+ * @param name
+ * The pointer to a driver name to be initialized.
+ * @return
+ * 0 on success, negative on error
+ */
+int rte_vdev_uninit(const char *name);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
new file mode 100644
@@ -0,0 +1,344 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2016 RehiveTech. 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 RehiveTech 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.
+ */
+
+#include <string.h>
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <sys/queue.h>
+
+#include <rte_eal.h>
+#include <rte_dev.h>
+#include <rte_bus.h>
+#include <rte_common.h>
+#include <rte_devargs.h>
+#include <rte_memory.h>
+#include <rte_errno.h>
+
+#include "rte_vdev.h"
+
+/* Forward declare to access virtual bus name */
+static struct rte_bus rte_vdev_bus;
+
+/** Double linked list of virtual device drivers. */
+TAILQ_HEAD(vdev_device_list, rte_vdev_device);
+
+static struct vdev_device_list vdev_device_list =
+ TAILQ_HEAD_INITIALIZER(vdev_device_list);
+struct vdev_driver_list vdev_driver_list =
+ TAILQ_HEAD_INITIALIZER(vdev_driver_list);
+
+/* register a driver */
+void
+rte_vdev_register(struct rte_vdev_driver *driver)
+{
+ TAILQ_INSERT_TAIL(&vdev_driver_list, driver, next);
+}
+
+/* unregister a driver */
+void
+rte_vdev_unregister(struct rte_vdev_driver *driver)
+{
+ TAILQ_REMOVE(&vdev_driver_list, driver, next);
+}
+
+static int
+vdev_parse(const char *name, void *addr)
+{
+ struct rte_vdev_driver **out = addr;
+ struct rte_vdev_driver *driver = NULL;
+
+ TAILQ_FOREACH(driver, &vdev_driver_list, next) {
+ if (strncmp(driver->driver.name, name,
+ strlen(driver->driver.name)) == 0)
+ break;
+ if (driver->driver.alias &&
+ strncmp(driver->driver.alias, name,
+ strlen(driver->driver.alias)) == 0)
+ break;
+ }
+ if (driver != NULL &&
+ addr != NULL)
+ *out = driver;
+ return driver == NULL;
+}
+
+static int
+vdev_probe_all_drivers(struct rte_vdev_device *dev)
+{
+ const char *name;
+ struct rte_vdev_driver *driver;
+ int ret;
+
+ name = rte_vdev_device_name(dev);
+
+ RTE_LOG(DEBUG, EAL, "Search driver %s to probe device %s\n", name,
+ rte_vdev_device_name(dev));
+
+ if (vdev_parse(name, &driver))
+ return -1;
+ dev->device.driver = &driver->driver;
+ ret = driver->probe(dev);
+ if (ret)
+ dev->device.driver = NULL;
+ return ret;
+}
+
+static struct rte_vdev_device *
+find_vdev(const char *name)
+{
+ struct rte_vdev_device *dev;
+
+ if (!name)
+ return NULL;
+
+ TAILQ_FOREACH(dev, &vdev_device_list, next) {
+ const char *devname = rte_vdev_device_name(dev);
+
+ if (!strncmp(devname, name, strlen(name)))
+ return dev;
+ }
+
+ return NULL;
+}
+
+static struct rte_devargs *
+alloc_devargs(const char *name, const char *args)
+{
+ struct rte_devargs *devargs;
+ int ret;
+
+ devargs = calloc(1, sizeof(*devargs));
+ if (!devargs)
+ return NULL;
+
+ devargs->bus = &rte_vdev_bus;
+ if (args)
+ devargs->args = strdup(args);
+ else
+ devargs->args = strdup("");
+
+ ret = snprintf(devargs->name, sizeof(devargs->name), "%s", name);
+ if (ret < 0 || ret >= (int)sizeof(devargs->name)) {
+ free(devargs->args);
+ free(devargs);
+ return NULL;
+ }
+
+ return devargs;
+}
+
+int
+rte_vdev_init(const char *name, const char *args)
+{
+ struct rte_vdev_device *dev;
+ struct rte_devargs *devargs;
+ int ret;
+
+ if (name == NULL)
+ return -EINVAL;
+
+ dev = find_vdev(name);
+ if (dev)
+ return -EEXIST;
+
+ devargs = alloc_devargs(name, args);
+ if (!devargs)
+ return -ENOMEM;
+
+ dev = calloc(1, sizeof(*dev));
+ if (!dev) {
+ ret = -ENOMEM;
+ goto fail;
+ }
+
+ dev->device.devargs = devargs;
+ dev->device.numa_node = SOCKET_ID_ANY;
+ dev->device.name = devargs->name;
+
+ ret = vdev_probe_all_drivers(dev);
+ if (ret) {
+ if (ret > 0)
+ RTE_LOG(ERR, EAL, "no driver found for %s\n", name);
+ goto fail;
+ }
+
+ TAILQ_INSERT_TAIL(&devargs_list, devargs, next);
+
+ TAILQ_INSERT_TAIL(&vdev_device_list, dev, next);
+ return 0;
+
+fail:
+ free(devargs->args);
+ free(devargs);
+ free(dev);
+ return ret;
+}
+
+static int
+vdev_remove_driver(struct rte_vdev_device *dev)
+{
+ const char *name = rte_vdev_device_name(dev);
+ const struct rte_vdev_driver *driver;
+
+ if (!dev->device.driver) {
+ RTE_LOG(DEBUG, EAL, "no driver attach to device %s\n", name);
+ return 1;
+ }
+
+ driver = container_of(dev->device.driver, const struct rte_vdev_driver,
+ driver);
+ return driver->remove(dev);
+}
+
+int
+rte_vdev_uninit(const char *name)
+{
+ struct rte_vdev_device *dev;
+ struct rte_devargs *devargs;
+ int ret;
+
+ if (name == NULL)
+ return -EINVAL;
+
+ dev = find_vdev(name);
+ if (!dev)
+ return -ENOENT;
+
+ devargs = dev->device.devargs;
+
+ ret = vdev_remove_driver(dev);
+ if (ret)
+ return ret;
+
+ TAILQ_REMOVE(&vdev_device_list, dev, next);
+
+ TAILQ_REMOVE(&devargs_list, devargs, next);
+
+ free(devargs->args);
+ free(devargs);
+ free(dev);
+ return 0;
+}
+
+static int
+vdev_scan(void)
+{
+ struct rte_vdev_device *dev;
+ struct rte_devargs *devargs;
+
+ /* for virtual devices we scan the devargs_list populated via cmdline */
+ TAILQ_FOREACH(devargs, &devargs_list, next) {
+
+ if (devargs->bus != &rte_vdev_bus)
+ continue;
+
+ dev = find_vdev(devargs->name);
+ if (dev)
+ continue;
+
+ dev = calloc(1, sizeof(*dev));
+ if (!dev)
+ return -1;
+
+ dev->device.devargs = devargs;
+ dev->device.numa_node = SOCKET_ID_ANY;
+ dev->device.name = devargs->name;
+
+ TAILQ_INSERT_TAIL(&vdev_device_list, dev, next);
+ }
+
+ return 0;
+}
+
+static int
+vdev_probe(void)
+{
+ struct rte_vdev_device *dev;
+
+ /* call the init function for each virtual device */
+ TAILQ_FOREACH(dev, &vdev_device_list, next) {
+
+ if (dev->device.driver)
+ continue;
+
+ if (vdev_probe_all_drivers(dev)) {
+ RTE_LOG(ERR, EAL, "failed to initialize %s device\n",
+ rte_vdev_device_name(dev));
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+static struct rte_device *
+vdev_find_device(const struct rte_device *start, rte_dev_cmp_t cmp,
+ const void *data)
+{
+ struct rte_vdev_device *dev;
+
+ TAILQ_FOREACH(dev, &vdev_device_list, next) {
+ if (start && &dev->device == start) {
+ start = NULL;
+ continue;
+ }
+ if (cmp(&dev->device, data) == 0)
+ return &dev->device;
+ }
+ return NULL;
+}
+
+static int
+vdev_plug(struct rte_device *dev)
+{
+ return vdev_probe_all_drivers(RTE_DEV_TO_VDEV(dev));
+}
+
+static int
+vdev_unplug(struct rte_device *dev)
+{
+ return rte_vdev_uninit(dev->name);
+}
+
+static struct rte_bus rte_vdev_bus = {
+ .scan = vdev_scan,
+ .probe = vdev_probe,
+ .find_device = vdev_find_device,
+ .plug = vdev_plug,
+ .unplug = vdev_unplug,
+ .parse = vdev_parse,
+};
+
+RTE_REGISTER_BUS(vdev, rte_vdev_bus);
@@ -32,6 +32,7 @@
include $(RTE_SDK)/mk/rte.vars.mk
core-libs := librte_eal librte_mbuf librte_mempool librte_ring librte_cryptodev
+core-libs += librte_bus_vdev
DIRS-$(CONFIG_RTE_LIBRTE_PMD_AESNI_GCM) += aesni_gcm
DEPDIRS-aesni_gcm = $(core-libs)
@@ -31,7 +31,7 @@
include $(RTE_SDK)/mk/rte.vars.mk
-core-libs := librte_eal librte_eventdev
+core-libs := librte_eal librte_eventdev librte_bus_vdev
DIRS-$(CONFIG_RTE_LIBRTE_PMD_SKELETON_EVENTDEV) += skeleton
DEPDIRS-skeleton = $(core-libs)
@@ -37,7 +37,7 @@ ifeq ($(CONFIG_RTE_LIBRTE_THUNDERX_NICVF_PMD),d)
endif
core-libs := librte_eal librte_mbuf librte_mempool librte_ring librte_ether
-core-libs += librte_net librte_kvargs
+core-libs += librte_net librte_kvargs librte_bus_vdev
DIRS-$(CONFIG_RTE_LIBRTE_PMD_AF_PACKET) += af_packet
DEPDIRS-af_packet = $(core-libs)
@@ -68,7 +68,6 @@ SRCS-$(CONFIG_RTE_EXEC_ENV_BSDAPP) += eal_common_timer.c
SRCS-$(CONFIG_RTE_EXEC_ENV_BSDAPP) += eal_common_memzone.c
SRCS-$(CONFIG_RTE_EXEC_ENV_BSDAPP) += eal_common_log.c
SRCS-$(CONFIG_RTE_EXEC_ENV_BSDAPP) += eal_common_launch.c
-SRCS-$(CONFIG_RTE_EXEC_ENV_BSDAPP) += eal_common_vdev.c
SRCS-$(CONFIG_RTE_EXEC_ENV_BSDAPP) += eal_common_pci.c
SRCS-$(CONFIG_RTE_EXEC_ENV_BSDAPP) += eal_common_pci_uio.c
SRCS-$(CONFIG_RTE_EXEC_ENV_BSDAPP) += eal_common_memory.c
@@ -38,7 +38,7 @@ INC += rte_per_lcore.h rte_random.h
INC += rte_tailq.h rte_interrupts.h rte_alarm.h
INC += rte_string_fns.h rte_version.h
INC += rte_eal_memconfig.h rte_malloc_heap.h
-INC += rte_hexdump.h rte_devargs.h rte_bus.h rte_dev.h rte_vdev.h
+INC += rte_hexdump.h rte_devargs.h rte_bus.h rte_dev.h
INC += rte_pci_dev_feature_defs.h rte_pci_dev_features.h
INC += rte_malloc.h rte_keepalive.h rte_time.h
INC += rte_service.h rte_service_component.h
deleted file mode 100644
@@ -1,342 +0,0 @@
-/*-
- * BSD LICENSE
- *
- * Copyright(c) 2016 RehiveTech. 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 RehiveTech 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.
- */
-
-#include <string.h>
-#include <inttypes.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdint.h>
-#include <stdbool.h>
-#include <sys/queue.h>
-
-#include <rte_eal.h>
-#include <rte_dev.h>
-#include <rte_bus.h>
-#include <rte_vdev.h>
-#include <rte_common.h>
-#include <rte_devargs.h>
-#include <rte_memory.h>
-#include <rte_errno.h>
-
-/* Forward declare to access virtual bus name */
-static struct rte_bus rte_vdev_bus;
-
-/** Double linked list of virtual device drivers. */
-TAILQ_HEAD(vdev_device_list, rte_vdev_device);
-
-static struct vdev_device_list vdev_device_list =
- TAILQ_HEAD_INITIALIZER(vdev_device_list);
-struct vdev_driver_list vdev_driver_list =
- TAILQ_HEAD_INITIALIZER(vdev_driver_list);
-
-/* register a driver */
-void
-rte_vdev_register(struct rte_vdev_driver *driver)
-{
- TAILQ_INSERT_TAIL(&vdev_driver_list, driver, next);
-}
-
-/* unregister a driver */
-void
-rte_vdev_unregister(struct rte_vdev_driver *driver)
-{
- TAILQ_REMOVE(&vdev_driver_list, driver, next);
-}
-
-static int
-vdev_parse(const char *name, void *addr)
-{
- struct rte_vdev_driver **out = addr;
- struct rte_vdev_driver *driver = NULL;
-
- TAILQ_FOREACH(driver, &vdev_driver_list, next) {
- if (strncmp(driver->driver.name, name,
- strlen(driver->driver.name)) == 0)
- break;
- if (driver->driver.alias &&
- strncmp(driver->driver.alias, name,
- strlen(driver->driver.alias)) == 0)
- break;
- }
- if (driver != NULL &&
- addr != NULL)
- *out = driver;
- return driver == NULL;
-}
-
-static int
-vdev_probe_all_drivers(struct rte_vdev_device *dev)
-{
- const char *name;
- struct rte_vdev_driver *driver;
- int ret;
-
- name = rte_vdev_device_name(dev);
-
- RTE_LOG(DEBUG, EAL, "Search driver %s to probe device %s\n", name,
- rte_vdev_device_name(dev));
-
- if (vdev_parse(name, &driver))
- return -1;
- dev->device.driver = &driver->driver;
- ret = driver->probe(dev);
- if (ret)
- dev->device.driver = NULL;
- return ret;
-}
-
-static struct rte_vdev_device *
-find_vdev(const char *name)
-{
- struct rte_vdev_device *dev;
-
- if (!name)
- return NULL;
-
- TAILQ_FOREACH(dev, &vdev_device_list, next) {
- const char *devname = rte_vdev_device_name(dev);
- if (!strncmp(devname, name, strlen(name)))
- return dev;
- }
-
- return NULL;
-}
-
-static struct rte_devargs *
-alloc_devargs(const char *name, const char *args)
-{
- struct rte_devargs *devargs;
- int ret;
-
- devargs = calloc(1, sizeof(*devargs));
- if (!devargs)
- return NULL;
-
- devargs->bus = &rte_vdev_bus;
- if (args)
- devargs->args = strdup(args);
- else
- devargs->args = strdup("");
-
- ret = snprintf(devargs->name, sizeof(devargs->name), "%s", name);
- if (ret < 0 || ret >= (int)sizeof(devargs->name)) {
- free(devargs->args);
- free(devargs);
- return NULL;
- }
-
- return devargs;
-}
-
-int
-rte_vdev_init(const char *name, const char *args)
-{
- struct rte_vdev_device *dev;
- struct rte_devargs *devargs;
- int ret;
-
- if (name == NULL)
- return -EINVAL;
-
- dev = find_vdev(name);
- if (dev)
- return -EEXIST;
-
- devargs = alloc_devargs(name, args);
- if (!devargs)
- return -ENOMEM;
-
- dev = calloc(1, sizeof(*dev));
- if (!dev) {
- ret = -ENOMEM;
- goto fail;
- }
-
- dev->device.devargs = devargs;
- dev->device.numa_node = SOCKET_ID_ANY;
- dev->device.name = devargs->name;
-
- ret = vdev_probe_all_drivers(dev);
- if (ret) {
- if (ret > 0)
- RTE_LOG(ERR, EAL, "no driver found for %s\n", name);
- goto fail;
- }
-
- TAILQ_INSERT_TAIL(&devargs_list, devargs, next);
-
- TAILQ_INSERT_TAIL(&vdev_device_list, dev, next);
- return 0;
-
-fail:
- free(devargs->args);
- free(devargs);
- free(dev);
- return ret;
-}
-
-static int
-vdev_remove_driver(struct rte_vdev_device *dev)
-{
- const char *name = rte_vdev_device_name(dev);
- const struct rte_vdev_driver *driver;
-
- if (!dev->device.driver) {
- RTE_LOG(DEBUG, EAL, "no driver attach to device %s\n", name);
- return 1;
- }
-
- driver = container_of(dev->device.driver, const struct rte_vdev_driver,
- driver);
- return driver->remove(dev);
-}
-
-int
-rte_vdev_uninit(const char *name)
-{
- struct rte_vdev_device *dev;
- struct rte_devargs *devargs;
- int ret;
-
- if (name == NULL)
- return -EINVAL;
-
- dev = find_vdev(name);
- if (!dev)
- return -ENOENT;
-
- devargs = dev->device.devargs;
-
- ret = vdev_remove_driver(dev);
- if (ret)
- return ret;
-
- TAILQ_REMOVE(&vdev_device_list, dev, next);
-
- TAILQ_REMOVE(&devargs_list, devargs, next);
-
- free(devargs->args);
- free(devargs);
- free(dev);
- return 0;
-}
-
-static int
-vdev_scan(void)
-{
- struct rte_vdev_device *dev;
- struct rte_devargs *devargs;
-
- /* for virtual devices we scan the devargs_list populated via cmdline */
- TAILQ_FOREACH(devargs, &devargs_list, next) {
-
- if (devargs->bus != &rte_vdev_bus)
- continue;
-
- dev = find_vdev(devargs->name);
- if (dev)
- continue;
-
- dev = calloc(1, sizeof(*dev));
- if (!dev)
- return -1;
-
- dev->device.devargs = devargs;
- dev->device.numa_node = SOCKET_ID_ANY;
- dev->device.name = devargs->name;
-
- TAILQ_INSERT_TAIL(&vdev_device_list, dev, next);
- }
-
- return 0;
-}
-
-static int
-vdev_probe(void)
-{
- struct rte_vdev_device *dev;
-
- /* call the init function for each virtual device */
- TAILQ_FOREACH(dev, &vdev_device_list, next) {
-
- if (dev->device.driver)
- continue;
-
- if (vdev_probe_all_drivers(dev)) {
- RTE_LOG(ERR, EAL, "failed to initialize %s device\n",
- rte_vdev_device_name(dev));
- return -1;
- }
- }
-
- return 0;
-}
-
-static struct rte_device *
-vdev_find_device(const struct rte_device *start, rte_dev_cmp_t cmp,
- const void *data)
-{
- struct rte_vdev_device *dev;
-
- TAILQ_FOREACH(dev, &vdev_device_list, next) {
- if (start && &dev->device == start) {
- start = NULL;
- continue;
- }
- if (cmp(&dev->device, data) == 0)
- return &dev->device;
- }
- return NULL;
-}
-
-static int
-vdev_plug(struct rte_device *dev)
-{
- return vdev_probe_all_drivers(RTE_DEV_TO_VDEV(dev));
-}
-
-static int
-vdev_unplug(struct rte_device *dev)
-{
- return rte_vdev_uninit(dev->name);
-}
-
-static struct rte_bus rte_vdev_bus = {
- .scan = vdev_scan,
- .probe = vdev_probe,
- .find_device = vdev_find_device,
- .plug = vdev_plug,
- .unplug = vdev_unplug,
- .parse = vdev_parse,
-};
-
-RTE_REGISTER_BUS(vdev, rte_vdev_bus);
@@ -166,28 +166,6 @@ struct rte_device {
};
/**
- * Initialize a driver specified by name.
- *
- * @param name
- * The pointer to a driver name to be initialized.
- * @param args
- * The pointer to arguments used by driver initialization.
- * @return
- * 0 on success, negative on error
- */
-int rte_vdev_init(const char *name, const char *args);
-
-/**
- * Uninitalize a driver specified by name.
- *
- * @param name
- * The pointer to a driver name to be initialized.
- * @return
- * 0 on success, negative on error
- */
-int rte_vdev_uninit(const char *name);
-
-/**
* Attach a device to a registered driver.
*
* @param name
@@ -312,4 +290,4 @@ __attribute__((used)) = str
}
#endif
-#endif /* _RTE_VDEV_H_ */
+#endif /* _RTE_DEV_H_ */
deleted file mode 100644
@@ -1,131 +0,0 @@
-/*-
- * BSD LICENSE
- *
- * Copyright(c) 2016 RehiveTech. 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 RehiveTech 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.
- */
-
-#ifndef RTE_VDEV_H
-#define RTE_VDEV_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include <sys/queue.h>
-#include <rte_dev.h>
-#include <rte_devargs.h>
-
-struct rte_vdev_device {
- TAILQ_ENTRY(rte_vdev_device) next; /**< Next attached vdev */
- struct rte_device device; /**< Inherit core device */
-};
-
-/**
- * @internal
- * Helper macro for drivers that need to convert to struct rte_vdev_device.
- */
-#define RTE_DEV_TO_VDEV(ptr) \
- container_of(ptr, struct rte_vdev_device, device)
-
-static inline const char *
-rte_vdev_device_name(const struct rte_vdev_device *dev)
-{
- if (dev && dev->device.name)
- return dev->device.name;
- return NULL;
-}
-
-static inline const char *
-rte_vdev_device_args(const struct rte_vdev_device *dev)
-{
- if (dev && dev->device.devargs)
- return dev->device.devargs->args;
- return "";
-}
-
-/** Double linked list of virtual device drivers. */
-TAILQ_HEAD(vdev_driver_list, rte_vdev_driver);
-
-/**
- * Probe function called for each virtual device driver once.
- */
-typedef int (rte_vdev_probe_t)(struct rte_vdev_device *dev);
-
-/**
- * Remove function called for each virtual device driver once.
- */
-typedef int (rte_vdev_remove_t)(struct rte_vdev_device *dev);
-
-/**
- * A virtual device driver abstraction.
- */
-struct rte_vdev_driver {
- TAILQ_ENTRY(rte_vdev_driver) next; /**< Next in list. */
- struct rte_driver driver; /**< Inherited general driver. */
- rte_vdev_probe_t *probe; /**< Virtual device probe function. */
- rte_vdev_remove_t *remove; /**< Virtual device remove function. */
-};
-
-/**
- * Register a virtual device driver.
- *
- * @param driver
- * A pointer to a rte_vdev_driver structure describing the driver
- * to be registered.
- */
-void rte_vdev_register(struct rte_vdev_driver *driver);
-
-/**
- * Unregister a virtual device driver.
- *
- * @param driver
- * A pointer to a rte_vdev_driver structure describing the driver
- * to be unregistered.
- */
-void rte_vdev_unregister(struct rte_vdev_driver *driver);
-
-#define RTE_PMD_REGISTER_VDEV(nm, vdrv)\
-RTE_INIT(vdrvinitfn_ ##vdrv);\
-static const char *vdrvinit_ ## nm ## _alias;\
-static void vdrvinitfn_ ##vdrv(void)\
-{\
- (vdrv).driver.name = RTE_STR(nm);\
- (vdrv).driver.alias = vdrvinit_ ## nm ## _alias;\
- rte_vdev_register(&vdrv);\
-} \
-RTE_PMD_EXPORT_NAME(nm, __COUNTER__)
-
-#define RTE_PMD_REGISTER_ALIAS(nm, alias)\
-static const char *vdrvinit_ ## nm ## _alias = RTE_STR(alias)
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
@@ -77,7 +77,6 @@ SRCS-$(CONFIG_RTE_EXEC_ENV_LINUXAPP) += eal_common_timer.c
SRCS-$(CONFIG_RTE_EXEC_ENV_LINUXAPP) += eal_common_memzone.c
SRCS-$(CONFIG_RTE_EXEC_ENV_LINUXAPP) += eal_common_log.c
SRCS-$(CONFIG_RTE_EXEC_ENV_LINUXAPP) += eal_common_launch.c
-SRCS-$(CONFIG_RTE_EXEC_ENV_LINUXAPP) += eal_common_vdev.c
SRCS-$(CONFIG_RTE_EXEC_ENV_LINUXAPP) += eal_common_pci.c
SRCS-$(CONFIG_RTE_EXEC_ENV_LINUXAPP) += eal_common_pci_uio.c
SRCS-$(CONFIG_RTE_EXEC_ENV_LINUXAPP) += eal_common_memory.c
@@ -98,6 +98,7 @@ _LDLIBS-$(CONFIG_RTE_LIBRTE_MEMPOOL) += -lrte_mempool
_LDLIBS-$(CONFIG_RTE_DRIVER_MEMPOOL_RING) += -lrte_mempool_ring
_LDLIBS-$(CONFIG_RTE_LIBRTE_RING) += -lrte_ring
_LDLIBS-$(CONFIG_RTE_LIBRTE_EAL) += -lrte_eal
+_LDLIBS-$(CONFIG_RTE_LIBRTE_VDEV_BUS) += -lrte_bus_vdev
_LDLIBS-$(CONFIG_RTE_LIBRTE_CMDLINE) += -lrte_cmdline
_LDLIBS-$(CONFIG_RTE_LIBRTE_REORDER) += -lrte_reorder