beec692c51
This adds a name field to the generic struct rte_device. The EAL is checking for the name being populated when registering a device but doesn't enforce global unique names as this is left to the bus implementations. Signed-off-by: Jan Blunck <jblunck@infradead.org> Acked-by: Stephen Hemminger <stephen@networkplumber.org>
129 lines
3.6 KiB
C
129 lines
3.6 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
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* Copyright(c) 2014 6WIND S.A.
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* 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 Intel Corporation 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 <stdio.h>
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#include <string.h>
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#include <inttypes.h>
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#include <sys/queue.h>
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#include <rte_dev.h>
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#include <rte_devargs.h>
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#include <rte_debug.h>
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#include <rte_devargs.h>
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#include <rte_log.h>
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#include "eal_private.h"
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/** Global list of device drivers. */
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static struct rte_driver_list dev_driver_list =
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TAILQ_HEAD_INITIALIZER(dev_driver_list);
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/** Global list of device drivers. */
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static struct rte_device_list dev_device_list =
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TAILQ_HEAD_INITIALIZER(dev_device_list);
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/* register a driver */
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void
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rte_eal_driver_register(struct rte_driver *driver)
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{
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TAILQ_INSERT_TAIL(&dev_driver_list, driver, next);
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}
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/* unregister a driver */
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void
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rte_eal_driver_unregister(struct rte_driver *driver)
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{
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TAILQ_REMOVE(&dev_driver_list, driver, next);
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}
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void rte_eal_device_insert(struct rte_device *dev)
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{
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RTE_VERIFY(dev->name);
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RTE_VERIFY(dev->name[0] != '\0');
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TAILQ_INSERT_TAIL(&dev_device_list, dev, next);
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}
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void rte_eal_device_remove(struct rte_device *dev)
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{
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TAILQ_REMOVE(&dev_device_list, dev, next);
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}
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int rte_eal_dev_attach(const char *name, const char *devargs)
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{
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struct rte_pci_addr addr;
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if (name == NULL || devargs == NULL) {
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RTE_LOG(ERR, EAL, "Invalid device or arguments provided\n");
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return -EINVAL;
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}
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if (eal_parse_pci_DomBDF(name, &addr) == 0) {
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if (rte_eal_pci_probe_one(&addr) < 0)
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goto err;
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} else {
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if (rte_eal_vdev_init(name, devargs))
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goto err;
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}
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return 0;
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err:
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RTE_LOG(ERR, EAL, "Driver cannot attach the device (%s)\n", name);
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return -EINVAL;
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}
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int rte_eal_dev_detach(const char *name)
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{
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struct rte_pci_addr addr;
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if (name == NULL) {
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RTE_LOG(ERR, EAL, "Invalid device provided.\n");
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return -EINVAL;
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}
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if (eal_parse_pci_DomBDF(name, &addr) == 0) {
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if (rte_eal_pci_detach(&addr) < 0)
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goto err;
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} else {
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if (rte_eal_vdev_uninit(name))
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goto err;
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}
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return 0;
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err:
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RTE_LOG(ERR, EAL, "Driver cannot detach the device (%s)\n", name);
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return -EINVAL;
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}
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