include/rdma/rdma_counter.h

   1 /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
   2 /*
   3  * Copyright (c) 2019 Mellanox Technologies. All rights reserved.
   4  */
   5
   6 #ifndef _RDMA_COUNTER_H_
   7 #define _RDMA_COUNTER_H_
   8
   9 #include <linux/mutex.h>
  10 #include <linux/pid_namespace.h>
  11
  12 #include <rdma/restrack.h>
  13 #include <rdma/rdma_netlink.h>
  14
  15 struct ib_device;
  16 struct ib_qp;
  17
  18 struct auto_mode_param {
  19         int qp_type;
  20 };
  21
  22 struct rdma_counter_mode {
  23         enum rdma_nl_counter_mode mode;
  24         enum rdma_nl_counter_mask mask;
  25         struct auto_mode_param param;
  26 };
  27
  28 struct rdma_port_counter {
  29         struct rdma_counter_mode mode;
  30         struct rdma_hw_stats *hstats;
  31         unsigned int num_counters;
  32         struct mutex lock;
  33 };
  34
  35 struct rdma_counter {
  36         struct rdma_restrack_entry      res;
  37         struct ib_device                *device;
  38         uint32_t                        id;
  39         struct kref                     kref;
  40         struct rdma_counter_mode        mode;
  41         struct mutex                    lock;
  42         struct rdma_hw_stats            *stats;
  43         u8                              port;
  44 };
  45
  46 void rdma_counter_init(struct ib_device *dev);
  47 void rdma_counter_release(struct ib_device *dev);
  48 int rdma_counter_set_auto_mode(struct ib_device *dev, u8 port,
  49                                bool on, enum rdma_nl_counter_mask mask);
  50 int rdma_counter_bind_qp_auto(struct ib_qp *qp, u8 port);
  51 int rdma_counter_unbind_qp(struct ib_qp *qp, bool force);
  52
  53 int rdma_counter_query_stats(struct rdma_counter *counter);
  54 u64 rdma_counter_get_hwstat_value(struct ib_device *dev, u8 port, u32 index);
  55 int rdma_counter_bind_qpn(struct ib_device *dev, u8 port,
  56                           u32 qp_num, u32 counter_id);
  57 int rdma_counter_bind_qpn_alloc(struct ib_device *dev, u8 port,
  58                                 u32 qp_num, u32 *counter_id);
  59 int rdma_counter_unbind_qpn(struct ib_device *dev, u8 port,
  60                             u32 qp_num, u32 counter_id);
  61 int rdma_counter_get_mode(struct ib_device *dev, u8 port,
  62                           enum rdma_nl_counter_mode *mode,
  63                           enum rdma_nl_counter_mask *mask);
  64
  65 #endif /* _RDMA_COUNTER_H_ */