linux/qed/qede_rdma.h

0001 /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
0002 /* QLogic qedr NIC Driver
0003  * Copyright (c) 2015-2017  QLogic Corporation
0004  * Copyright (c) 2019-2020 Marvell International Ltd.
0005  */
0006
0007 #ifndef QEDE_ROCE_H
0008 #define QEDE_ROCE_H
0009
0010 #include <linux/pci.h>
0011 #include <linux/netdevice.h>
0012 #include <linux/types.h>
0013 #include <linux/workqueue.h>
0014
0015 struct qedr_dev;
0016 struct qed_dev;
0017 struct qede_dev;
0018
0019 enum qede_rdma_event {
0020     QEDE_UP,
0021     QEDE_DOWN,
0022     QEDE_CHANGE_ADDR,
0023     QEDE_CLOSE,
0024     QEDE_CHANGE_MTU,
0025 };
0026
0027 struct qede_rdma_event_work {
0028     struct list_head list;
0029     struct work_struct work;
0030     void *ptr;
0031     enum qede_rdma_event event;
0032 };
0033
0034 struct qedr_driver {
0035     unsigned char name[32];
0036
0037     struct qedr_dev* (*add)(struct qed_dev *, struct pci_dev *,
0038                 struct net_device *);
0039
0040     void (*remove)(struct qedr_dev *);
0041     void (*notify)(struct qedr_dev *, enum qede_rdma_event);
0042 };
0043
0044 /* APIs for RDMA driver to register callback handlers,
0045  * which will be invoked when device is added, removed, ifup, ifdown
0046  */
0047 int qede_rdma_register_driver(struct qedr_driver *drv);
0048 void qede_rdma_unregister_driver(struct qedr_driver *drv);
0049
0050 bool qede_rdma_supported(struct qede_dev *dev);
0051
0052 #if IS_ENABLED(CONFIG_QED_RDMA)
0053 int qede_rdma_dev_add(struct qede_dev *dev, bool recovery);
0054 void qede_rdma_dev_event_open(struct qede_dev *dev);
0055 void qede_rdma_dev_event_close(struct qede_dev *dev);
0056 void qede_rdma_dev_remove(struct qede_dev *dev, bool recovery);
0057 void qede_rdma_event_changeaddr(struct qede_dev *edr);
0058 void qede_rdma_event_change_mtu(struct qede_dev *edev);
0059
0060 #else
0061 static inline int qede_rdma_dev_add(struct qede_dev *dev,
0062                     bool recovery)
0063 {
0064     return 0;
0065 }
0066
0067 static inline void qede_rdma_dev_event_open(struct qede_dev *dev) {}
0068 static inline void qede_rdma_dev_event_close(struct qede_dev *dev) {}
0069 static inline void qede_rdma_dev_remove(struct qede_dev *dev,
0070                     bool recovery) {}
0071 static inline void qede_rdma_event_changeaddr(struct qede_dev *edr) {}
0072 #endif
0073 #endif