c431384c8f
Fixes: d63eed6b2dca ("eal: add driver name alias")
Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>
125 lines
3.8 KiB
C
125 lines
3.8 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright(c) 2016 RehiveTech. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of RehiveTech nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <string.h>
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#include <inttypes.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <sys/queue.h>
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#include <rte_vdev.h>
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#include <rte_common.h>
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struct vdev_driver_list vdev_driver_list =
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TAILQ_HEAD_INITIALIZER(vdev_driver_list);
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/* register a driver */
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void
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rte_eal_vdrv_register(struct rte_vdev_driver *driver)
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{
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TAILQ_INSERT_TAIL(&vdev_driver_list, driver, next);
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rte_eal_driver_register(&driver->driver);
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}
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/* unregister a driver */
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void
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rte_eal_vdrv_unregister(struct rte_vdev_driver *driver)
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{
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rte_eal_driver_unregister(&driver->driver);
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TAILQ_REMOVE(&vdev_driver_list, driver, next);
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}
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int
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rte_eal_vdev_init(const char *name, const char *args)
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{
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struct rte_vdev_driver *driver;
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if (name == NULL)
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return -EINVAL;
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TAILQ_FOREACH(driver, &vdev_driver_list, next) {
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/*
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* search a driver prefix in virtual device name.
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* For example, if the driver is pcap PMD, driver->name
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* will be "net_pcap", but "name" will be "net_pcapN".
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* So use strncmp to compare.
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*/
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if (!strncmp(driver->driver.name, name,
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strlen(driver->driver.name)))
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return driver->probe(name, args);
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}
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/* Give new names precedence over aliases. */
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TAILQ_FOREACH(driver, &vdev_driver_list, next) {
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if (driver->driver.alias &&
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!strncmp(driver->driver.alias, name,
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strlen(driver->driver.alias)))
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return driver->probe(name, args);
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}
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RTE_LOG(ERR, EAL, "no driver found for %s\n", name);
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return -EINVAL;
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}
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int
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rte_eal_vdev_uninit(const char *name)
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{
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struct rte_vdev_driver *driver;
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if (name == NULL)
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return -EINVAL;
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TAILQ_FOREACH(driver, &vdev_driver_list, next) {
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/*
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* search a driver prefix in virtual device name.
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* For example, if the driver is pcap PMD, driver->name
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* will be "net_pcap", but "name" will be "net_pcapN".
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* So use strncmp to compare.
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*/
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if (!strncmp(driver->driver.name, name,
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strlen(driver->driver.name)))
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return driver->remove(name);
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}
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/* Give new names precedence over aliases. */
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TAILQ_FOREACH(driver, &vdev_driver_list, next) {
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if (driver->driver.alias &&
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!strncmp(driver->driver.alias, name,
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strlen(driver->driver.alias)))
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return driver->remove(name);
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}
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RTE_LOG(ERR, EAL, "no driver found for %s\n", name);
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return -EINVAL;
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}
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