1 // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
4 * Authors: Leon Romanovsky <leonro@mellanox.com>
10 static int res_pd_line(struct rd
*rd
, const char *name
, int idx
,
11 struct nlattr
*nla_entry
)
13 uint32_t local_dma_lkey
= 0, unsafe_global_rkey
= 0;
14 struct nlattr
*nla_line
[RDMA_NLDEV_ATTR_MAX
] = {};
22 err
= mnl_attr_parse_nested(nla_entry
, rd_attr_cb
, nla_line
);
26 if (!nla_line
[RDMA_NLDEV_ATTR_RES_USECNT
] ||
27 (!nla_line
[RDMA_NLDEV_ATTR_RES_PID
] &&
28 !nla_line
[RDMA_NLDEV_ATTR_RES_KERN_NAME
])) {
32 if (nla_line
[RDMA_NLDEV_ATTR_RES_LOCAL_DMA_LKEY
])
33 local_dma_lkey
= mnl_attr_get_u32(
34 nla_line
[RDMA_NLDEV_ATTR_RES_LOCAL_DMA_LKEY
]);
36 users
= mnl_attr_get_u64(nla_line
[RDMA_NLDEV_ATTR_RES_USECNT
]);
37 if (rd_check_is_filtered(rd
, "users", users
))
40 if (nla_line
[RDMA_NLDEV_ATTR_RES_UNSAFE_GLOBAL_RKEY
])
41 unsafe_global_rkey
= mnl_attr_get_u32(
42 nla_line
[RDMA_NLDEV_ATTR_RES_UNSAFE_GLOBAL_RKEY
]);
44 if (nla_line
[RDMA_NLDEV_ATTR_RES_PID
]) {
45 pid
= mnl_attr_get_u32(nla_line
[RDMA_NLDEV_ATTR_RES_PID
]);
46 comm
= get_task_name(pid
);
49 if (rd_check_is_filtered(rd
, "pid", pid
))
52 if (nla_line
[RDMA_NLDEV_ATTR_RES_CTXN
])
53 ctxn
= mnl_attr_get_u32(nla_line
[RDMA_NLDEV_ATTR_RES_CTXN
]);
55 if (rd_check_is_filtered(rd
, "ctxn", ctxn
))
58 if (nla_line
[RDMA_NLDEV_ATTR_RES_PDN
])
59 pdn
= mnl_attr_get_u32(nla_line
[RDMA_NLDEV_ATTR_RES_PDN
]);
60 if (rd_check_is_filtered(rd
, "pdn", pdn
))
63 if (nla_line
[RDMA_NLDEV_ATTR_RES_KERN_NAME
])
64 /* discard const from mnl_attr_get_str */
65 comm
= (char *)mnl_attr_get_str(
66 nla_line
[RDMA_NLDEV_ATTR_RES_KERN_NAME
]);
69 jsonw_start_array(rd
->jw
);
71 print_dev(rd
, idx
, name
);
72 res_print_uint(rd
, "pdn", pdn
, nla_line
[RDMA_NLDEV_ATTR_RES_PDN
]);
73 print_key(rd
, "local_dma_lkey", local_dma_lkey
,
74 nla_line
[RDMA_NLDEV_ATTR_RES_LOCAL_DMA_LKEY
]);
75 res_print_uint(rd
, "users", users
,
76 nla_line
[RDMA_NLDEV_ATTR_RES_USECNT
]);
77 print_key(rd
, "unsafe_global_rkey", unsafe_global_rkey
,
78 nla_line
[RDMA_NLDEV_ATTR_RES_UNSAFE_GLOBAL_RKEY
]);
79 res_print_uint(rd
, "ctxn", ctxn
, nla_line
[RDMA_NLDEV_ATTR_RES_CTXN
]);
80 res_print_uint(rd
, "pid", pid
, nla_line
[RDMA_NLDEV_ATTR_RES_PID
]);
81 print_comm(rd
, comm
, nla_line
);
83 print_driver_table(rd
, nla_line
[RDMA_NLDEV_ATTR_DRIVER
]);
86 out
: if (nla_line
[RDMA_NLDEV_ATTR_RES_PID
])
91 int res_pd_parse_cb(const struct nlmsghdr
*nlh
, void *data
)
93 struct nlattr
*tb
[RDMA_NLDEV_ATTR_MAX
] = {};
94 struct nlattr
*nla_table
, *nla_entry
;
100 mnl_attr_parse(nlh
, 0, rd_attr_cb
, tb
);
101 if (!tb
[RDMA_NLDEV_ATTR_DEV_INDEX
] || !tb
[RDMA_NLDEV_ATTR_DEV_NAME
] ||
102 !tb
[RDMA_NLDEV_ATTR_RES_PD
])
105 name
= mnl_attr_get_str(tb
[RDMA_NLDEV_ATTR_DEV_NAME
]);
106 idx
= mnl_attr_get_u32(tb
[RDMA_NLDEV_ATTR_DEV_INDEX
]);
107 nla_table
= tb
[RDMA_NLDEV_ATTR_RES_PD
];
109 mnl_attr_for_each_nested(nla_entry
, nla_table
) {
110 ret
= res_pd_line(rd
, name
, idx
, nla_entry
);
112 if (ret
!= MNL_CB_OK
)