LXR linux/include/linux/qed/qede

   1/* QLogic qedr NIC Driver
   2 * Copyright (c) 2015-2017  QLogic Corporation
   3 *
   4 * This software is available to you under a choice of one of two
   5 * licenses.  You may choose to be licensed under the terms of the GNU
   6 * General Public License (GPL) Version 2, available from the file
   7 * COPYING in the main directory of this source tree, or the
   8 * OpenIB.org BSD license below:
   9 *
  10 *     Redistribution and use in source and binary forms, with or
  11 *     without modification, are permitted provided that the following
  12 *     conditions are met:
  13 *
  14 *      - Redistributions of source code must retain the above
  15 *        copyright notice, this list of conditions and the following
  16 *        disclaimer.
  17 *
  18 *      - Redistributions in binary form must reproduce the above
  19 *        copyright notice, this list of conditions and the following
  20 *        disclaimer in the documentation and /or other materials
  21 *        provided with the distribution.
  22 *
  23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30 * SOFTWARE.
  31 */
  32#ifndef QEDE_ROCE_H
  33#define QEDE_ROCE_H
  34
  35#include <linux/pci.h>
  36#include <linux/netdevice.h>
  37#include <linux/types.h>
  38#include <linux/workqueue.h>
  39
  40struct qedr_dev;
  41struct qed_dev;
  42struct qede_dev;
  43
  44enum qede_rdma_event {
  45        QEDE_UP,
  46        QEDE_DOWN,
  47        QEDE_CHANGE_ADDR,
  48        QEDE_CLOSE
  49};
  50
  51struct qede_rdma_event_work {
  52        struct list_head list;
  53        struct work_struct work;
  54        void *ptr;
  55        enum qede_rdma_event event;
  56};
  57
  58struct qedr_driver {
  59        unsigned char name[32];
  60
  61        struct qedr_dev* (*add)(struct qed_dev *, struct pci_dev *,
  62                                struct net_device *);
  63
  64        void (*remove)(struct qedr_dev *);
  65        void (*notify)(struct qedr_dev *, enum qede_rdma_event);
  66};
  67
  68/* APIs for RDMA driver to register callback handlers,
  69 * which will be invoked when device is added, removed, ifup, ifdown
  70 */
  71int qede_rdma_register_driver(struct qedr_driver *drv);
  72void qede_rdma_unregister_driver(struct qedr_driver *drv);
  73
  74bool qede_rdma_supported(struct qede_dev *dev);
  75
  76#if IS_ENABLED(CONFIG_QED_RDMA)
  77int qede_rdma_dev_add(struct qede_dev *dev);
  78void qede_rdma_dev_event_open(struct qede_dev *dev);
  79void qede_rdma_dev_event_close(struct qede_dev *dev);
  80void qede_rdma_dev_remove(struct qede_dev *dev);
  81void qede_rdma_event_changeaddr(struct qede_dev *edr);
  82
  83#else
  84static inline int qede_rdma_dev_add(struct qede_dev *dev)
  85{
  86        return 0;
  87}
  88
  89static inline void qede_rdma_dev_event_open(struct qede_dev *dev) {}
  90static inline void qede_rdma_dev_event_close(struct qede_dev *dev) {}
  91static inline void qede_rdma_dev_remove(struct qede_dev *dev) {}
  92static inline void qede_rdma_event_changeaddr(struct qede_dev *edr) {}
  93#endif
  94#endif
  95