include/linux/qed/qede_rdma.h

   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
  40 struct qedr_dev;
  41 struct qed_dev;
  42 struct qede_dev;
  43
  44 enum qede_rdma_event {
  45         QEDE_UP,
  46         QEDE_DOWN,
  47         QEDE_CHANGE_ADDR,
  48         QEDE_CLOSE
  49 };
  50
  51 struct 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
  58 struct 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  */
  71 int qede_rdma_register_driver(struct qedr_driver *drv);
  72 void qede_rdma_unregister_driver(struct qedr_driver *drv);
  73
  74 bool qede_rdma_supported(struct qede_dev *dev);
  75
  76 #if IS_ENABLED(CONFIG_QED_RDMA)
  77 int qede_rdma_dev_add(struct qede_dev *dev);
  78 void qede_rdma_dev_event_open(struct qede_dev *dev);
  79 void qede_rdma_dev_event_close(struct qede_dev *dev);
  80 void qede_rdma_dev_remove(struct qede_dev *dev);
  81 void qede_rdma_event_changeaddr(struct qede_dev *edr);
  82
  83 #else
  84 static inline int qede_rdma_dev_add(struct qede_dev *dev)
  85 {
  86         return 0;
  87 }
  88
  89 static inline void qede_rdma_dev_event_open(struct qede_dev *dev) {}
  90 static inline void qede_rdma_dev_event_close(struct qede_dev *dev) {}
  91 static inline void qede_rdma_dev_remove(struct qede_dev *dev) {}
  92 static inline void qede_rdma_event_changeaddr(struct qede_dev *edr) {}
  93 #endif
  94 #endif