rdma/rdma.h

   1 /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
   2 /*
   3  * rdma.c       RDMA tool
   4  * Authors:     Leon Romanovsky <leonro@mellanox.com>
   5  */
   6 #ifndef _RDMA_TOOL_H_
   7 #define _RDMA_TOOL_H_
   8
   9 #include <stdlib.h>
  10 #include <string.h>
  11 #include <errno.h>
  12 #include <getopt.h>
  13 #include <netinet/in.h>
  14 #include <libmnl/libmnl.h>
  15 #include <rdma/rdma_netlink.h>
  16 #include <rdma/rdma_user_cm.h>
  17 #include <time.h>
  18 #include <net/if_arp.h>
  19
  20 #include "list.h"
  21 #include "utils.h"
  22 #include "json_writer.h"
  23
  24 #define pr_err(args...) fprintf(stderr, ##args)
  25 #define pr_out(args...) fprintf(stdout, ##args)
  26
  27 #define RDMA_BITMAP_ENUM(name, bit_no) RDMA_BITMAP_##name = BIT(bit_no),
  28 #define RDMA_BITMAP_NAMES(name, bit_no) [bit_no] = #name,
  29
  30 #define MAX_NUMBER_OF_FILTERS 64
  31 struct filters {
  32         const char *name;
  33         uint8_t is_number:1;
  34         uint8_t is_doit:1;
  35 };
  36
  37 struct filter_entry {
  38         struct list_head list;
  39         char *key;
  40         char *value;
  41         /*
  42          * This field menas that we can try to issue .doit calback
  43          * on value above. This value can be converted to integer
  44          * with simple atoi(). Otherwise "is_doit" will be false.
  45          */
  46         uint8_t is_doit:1;
  47 };
  48
  49 struct dev_map {
  50         struct list_head list;
  51         char *dev_name;
  52         uint32_t num_ports;
  53         uint32_t idx;
  54 };
  55
  56 struct rd {
  57         int argc;
  58         char **argv;
  59         char *filename;
  60         bool show_details;
  61         bool show_driver_details;
  62         struct list_head dev_map_list;
  63         uint32_t dev_idx;
  64         uint32_t port_idx;
  65         struct mnl_socket *nl;
  66         struct nlmsghdr *nlh;
  67         char *buff;
  68         json_writer_t *jw;
  69         bool json_output;
  70         bool pretty_output;
  71         struct list_head filter_list;
  72 };
  73
  74 struct rd_cmd {
  75         const char *cmd;
  76         int (*func)(struct rd *rd);
  77 };
  78
  79 /*
  80  * Parser interface
  81  */
  82 bool rd_no_arg(struct rd *rd);
  83 void rd_arg_inc(struct rd *rd);
  84
  85 char *rd_argv(struct rd *rd);
  86
  87 /*
  88  * Commands interface
  89  */
  90 int cmd_dev(struct rd *rd);
  91 int cmd_link(struct rd *rd);
  92 int cmd_res(struct rd *rd);
  93 int rd_exec_cmd(struct rd *rd, const struct rd_cmd *c, const char *str);
  94 int rd_exec_dev(struct rd *rd, int (*cb)(struct rd *rd));
  95 int rd_exec_require_dev(struct rd *rd, int (*cb)(struct rd *rd));
  96 int rd_exec_link(struct rd *rd, int (*cb)(struct rd *rd), bool strict_port);
  97 void rd_free(struct rd *rd);
  98 int rd_set_arg_to_devname(struct rd *rd);
  99 int rd_argc(struct rd *rd);
 100
 101 int strcmpx(const char *str1, const char *str2);
 102
 103 /*
 104  * Device manipulation
 105  */
 106 struct dev_map *dev_map_lookup(struct rd *rd, bool allow_port_index);
 107
 108 /*
 109  * Filter manipulation
 110  */
 111 bool rd_doit_index(struct rd *rd, uint32_t *idx);
 112 int rd_build_filter(struct rd *rd, const struct filters valid_filters[]);
 113 bool rd_is_filtered_attr(struct rd *rd, const char *key, uint32_t val,
 114                          struct nlattr *attr);
 115 bool rd_is_string_filtered_attr(struct rd *rd, const char *key, const char *val,
 116                                 struct nlattr *attr);
 117 /*
 118  * Netlink
 119  */
 120 int rd_send_msg(struct rd *rd);
 121 int rd_recv_msg(struct rd *rd, mnl_cb_t callback, void *data, uint32_t seq);
 122 void rd_prepare_msg(struct rd *rd, uint32_t cmd, uint32_t *seq, uint16_t flags);
 123 int rd_dev_init_cb(const struct nlmsghdr *nlh, void *data);
 124 int rd_attr_cb(const struct nlattr *attr, void *data);
 125 int rd_attr_check(const struct nlattr *attr, int *typep);
 126
 127 /*
 128  * Print helpers
 129  */
 130 void print_driver_table(struct rd *rd, struct nlattr *tb);
 131 void newline(struct rd *rd);
 132 void newline_indent(struct rd *rd);
 133 #define MAX_LINE_LENGTH 80
 134
 135 #endif /* _RDMA_TOOL_H_ */