From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jianfeng Tan Subject: [PATCH v3 4/5] bus/vdev: move to vdev bus to drivers/bus Date: Mon, 9 Oct 2017 03:20:28 +0000 Message-ID: <1507519229-80692-5-git-send-email-jianfeng.tan@intel.com> References: <1503654052-84730-1-git-send-email-jianfeng.tan@intel.com> <1507519229-80692-1-git-send-email-jianfeng.tan@intel.com> Cc: jblunck@infradead.org, bruce.richardson@intel.com, konstantin.ananyev@intel.com, pablo.de.lara.guarch@intel.com, thomas@monjalon.net, yliu@fridaylinux.org, maxime.coquelin@redhat.com, mtetsuyah@gmail.com, ferruh.yigit@intel.com, Jianfeng Tan To: dev@dpdk.org Return-path: Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by dpdk.org (Postfix) with ESMTP id 8DE011B1AA for ; Mon, 9 Oct 2017 05:19:13 +0200 (CEST) In-Reply-To: <1507519229-80692-1-git-send-email-jianfeng.tan@intel.com> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Move the vdev bus from lib/librte_eal to drivers/bus. As the crypto vdev helper function refers to data structure in rte_vdev.h, so we move those helper function into drivers/bus too. Signed-off-by: Jianfeng Tan --- config/common_base | 5 + drivers/bus/Makefile | 2 + drivers/bus/vdev/Makefile | 55 +++++ drivers/bus/vdev/rte_bus_vdev_version.map | 10 + drivers/bus/vdev/rte_vdev.h | 153 +++++++++++++ drivers/bus/vdev/vdev.c | 343 ++++++++++++++++++++++++++++++ lib/librte_eal/bsdapp/eal/Makefile | 1 - lib/librte_eal/common/Makefile | 2 +- lib/librte_eal/common/eal_common_vdev.c | 342 ----------------------------- lib/librte_eal/common/include/rte_dev.h | 24 +-- lib/librte_eal/common/include/rte_vdev.h | 131 ------------ lib/librte_eal/linuxapp/eal/Makefile | 1 - mk/rte.app.mk | 1 + 13 files changed, 571 insertions(+), 499 deletions(-) create mode 100644 drivers/bus/vdev/Makefile create mode 100644 drivers/bus/vdev/rte_bus_vdev_version.map create mode 100644 drivers/bus/vdev/rte_vdev.h create mode 100644 drivers/bus/vdev/vdev.c delete mode 100644 lib/librte_eal/common/eal_common_vdev.c delete mode 100644 lib/librte_eal/common/include/rte_vdev.h diff --git a/config/common_base b/config/common_base index 22068c5..c6f2aae 100644 --- a/config/common_base +++ b/config/common_base @@ -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 diff --git a/drivers/bus/Makefile b/drivers/bus/Makefile index 6cb6466..f93633c 100644 --- a/drivers/bus/Makefile +++ b/drivers/bus/Makefile @@ -38,4 +38,6 @@ DEPDIRS-dpaa = $(core-libs) DIRS-$(CONFIG_RTE_LIBRTE_FSLMC_BUS) += fslmc DEPDIRS-fslmc = $(core-libs) +DIRS-$(CONFIG_RTE_LIBRTE_VDEV_BUS) += vdev + include $(RTE_SDK)/mk/rte.subdir.mk diff --git a/drivers/bus/vdev/Makefile b/drivers/bus/vdev/Makefile new file mode 100644 index 0000000..6c48ba0 --- /dev/null +++ b/drivers/bus/vdev/Makefile @@ -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 diff --git a/drivers/bus/vdev/rte_bus_vdev_version.map b/drivers/bus/vdev/rte_bus_vdev_version.map new file mode 100644 index 0000000..69740c3 --- /dev/null +++ b/drivers/bus/vdev/rte_bus_vdev_version.map @@ -0,0 +1,10 @@ +DPDK_17.11 { + global: + + rte_vdev_init; + rte_vdev_register; + rte_vdev_uninit; + rte_vdev_unregister; + rte_cryptodev_vdev_pmd_init + rte_cryptodev_vdev_parse_init_params +}; diff --git a/drivers/bus/vdev/rte_vdev.h b/drivers/bus/vdev/rte_vdev.h new file mode 100644 index 0000000..41762b8 --- /dev/null +++ b/drivers/bus/vdev/rte_vdev.h @@ -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 +#include +#include + +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 diff --git a/drivers/bus/vdev/vdev.c b/drivers/bus/vdev/vdev.c new file mode 100644 index 0000000..8a1b00a --- /dev/null +++ b/drivers/bus/vdev/vdev.c @@ -0,0 +1,343 @@ +/*- + * 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 +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include + +#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); diff --git a/lib/librte_eal/bsdapp/eal/Makefile b/lib/librte_eal/bsdapp/eal/Makefile index 317a75e..8a3376c 100644 --- a/lib/librte_eal/bsdapp/eal/Makefile +++ b/lib/librte_eal/bsdapp/eal/Makefile @@ -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 diff --git a/lib/librte_eal/common/Makefile b/lib/librte_eal/common/Makefile index e8fd67a..7eeb06a 100644 --- a/lib/librte_eal/common/Makefile +++ b/lib/librte_eal/common/Makefile @@ -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 diff --git a/lib/librte_eal/common/eal_common_vdev.c b/lib/librte_eal/common/eal_common_vdev.c deleted file mode 100644 index f7e547a..0000000 --- a/lib/librte_eal/common/eal_common_vdev.c +++ /dev/null @@ -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 -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include -#include - -/* 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); diff --git a/lib/librte_eal/common/include/rte_dev.h b/lib/librte_eal/common/include/rte_dev.h index 5386d3a..8bfc343 100644 --- a/lib/librte_eal/common/include/rte_dev.h +++ b/lib/librte_eal/common/include/rte_dev.h @@ -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_ */ diff --git a/lib/librte_eal/common/include/rte_vdev.h b/lib/librte_eal/common/include/rte_vdev.h deleted file mode 100644 index 29f5a52..0000000 --- a/lib/librte_eal/common/include/rte_vdev.h +++ /dev/null @@ -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 -#include -#include - -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 diff --git a/lib/librte_eal/linuxapp/eal/Makefile b/lib/librte_eal/linuxapp/eal/Makefile index 21e0b4a..22ac5cd 100644 --- a/lib/librte_eal/linuxapp/eal/Makefile +++ b/lib/librte_eal/linuxapp/eal/Makefile @@ -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-$(CONFIG_RTE_EXEC_ENV_LINUXAPP) += eal_common_memory.c diff --git a/mk/rte.app.mk b/mk/rte.app.mk index a788be2..7d31595 100644 --- a/mk/rte.app.mk +++ b/mk/rte.app.mk @@ -98,6 +98,7 @@ _LDLIBS-$(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 -- 2.7.4