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1 | // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB | |
2 | /* | |
3 | * res-qp.c RDMA tool | |
4 | * Authors: Leon Romanovsky <leonro@mellanox.com> | |
5 | */ | |
6 | ||
7 | #include "res.h" | |
8 | #include <inttypes.h> | |
9 | ||
10 | static const char *path_mig_to_str(uint8_t idx) | |
11 | { | |
12 | static const char *const path_mig_str[] = { "MIGRATED", "REARM", | |
13 | "ARMED" }; | |
14 | ||
15 | if (idx < ARRAY_SIZE(path_mig_str)) | |
16 | return path_mig_str[idx]; | |
17 | return "UNKNOWN"; | |
18 | } | |
19 | ||
20 | static const char *qp_states_to_str(uint8_t idx) | |
21 | { | |
22 | static const char *const qp_states_str[] = { "RESET", "INIT", "RTR", | |
23 | "RTS", "SQD", "SQE", | |
24 | "ERR" }; | |
25 | ||
26 | if (idx < ARRAY_SIZE(qp_states_str)) | |
27 | return qp_states_str[idx]; | |
28 | return "UNKNOWN"; | |
29 | } | |
30 | ||
31 | static void print_rqpn(struct rd *rd, uint32_t val, struct nlattr **nla_line) | |
32 | { | |
33 | if (!nla_line[RDMA_NLDEV_ATTR_RES_RQPN]) | |
34 | return; | |
35 | ||
36 | if (rd->json_output) | |
37 | jsonw_uint_field(rd->jw, "rqpn", val); | |
38 | else | |
39 | pr_out("rqpn %u ", val); | |
40 | } | |
41 | ||
42 | static void print_type(struct rd *rd, uint32_t val) | |
43 | { | |
44 | if (rd->json_output) | |
45 | jsonw_string_field(rd->jw, "type", qp_types_to_str(val)); | |
46 | else | |
47 | pr_out("type %s ", qp_types_to_str(val)); | |
48 | } | |
49 | ||
50 | static void print_state(struct rd *rd, uint32_t val) | |
51 | { | |
52 | if (rd->json_output) | |
53 | jsonw_string_field(rd->jw, "state", qp_states_to_str(val)); | |
54 | else | |
55 | pr_out("state %s ", qp_states_to_str(val)); | |
56 | } | |
57 | ||
58 | static void print_rqpsn(struct rd *rd, uint32_t val, struct nlattr **nla_line) | |
59 | { | |
60 | if (!nla_line[RDMA_NLDEV_ATTR_RES_RQ_PSN]) | |
61 | return; | |
62 | ||
63 | if (rd->json_output) | |
64 | jsonw_uint_field(rd->jw, "rq-psn", val); | |
65 | else | |
66 | pr_out("rq-psn %u ", val); | |
67 | } | |
68 | ||
69 | static void print_pathmig(struct rd *rd, uint32_t val, struct nlattr **nla_line) | |
70 | { | |
71 | if (!nla_line[RDMA_NLDEV_ATTR_RES_PATH_MIG_STATE]) | |
72 | return; | |
73 | ||
74 | if (rd->json_output) | |
75 | jsonw_string_field(rd->jw, "path-mig-state", | |
76 | path_mig_to_str(val)); | |
77 | else | |
78 | pr_out("path-mig-state %s ", path_mig_to_str(val)); | |
79 | } | |
80 | ||
81 | static int res_qp_line(struct rd *rd, const char *name, int idx, | |
82 | struct nlattr *nla_entry) | |
83 | { | |
84 | struct nlattr *nla_line[RDMA_NLDEV_ATTR_MAX] = {}; | |
85 | uint32_t lqpn, rqpn = 0, rq_psn = 0, sq_psn; | |
86 | uint8_t type, state, path_mig_state = 0; | |
87 | uint32_t port = 0, pid = 0; | |
88 | uint32_t pdn = 0; | |
89 | char *comm = NULL; | |
90 | int err; | |
91 | ||
92 | err = mnl_attr_parse_nested(nla_entry, rd_attr_cb, nla_line); | |
93 | if (err != MNL_CB_OK) | |
94 | return MNL_CB_ERROR; | |
95 | ||
96 | if (!nla_line[RDMA_NLDEV_ATTR_RES_LQPN] || | |
97 | !nla_line[RDMA_NLDEV_ATTR_RES_SQ_PSN] || | |
98 | !nla_line[RDMA_NLDEV_ATTR_RES_TYPE] || | |
99 | !nla_line[RDMA_NLDEV_ATTR_RES_STATE] || | |
100 | (!nla_line[RDMA_NLDEV_ATTR_RES_PID] && | |
101 | !nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])) { | |
102 | return MNL_CB_ERROR; | |
103 | } | |
104 | ||
105 | if (nla_line[RDMA_NLDEV_ATTR_PORT_INDEX]) | |
106 | port = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_PORT_INDEX]); | |
107 | ||
108 | if (port != rd->port_idx) | |
109 | goto out; | |
110 | ||
111 | lqpn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_LQPN]); | |
112 | if (rd_check_is_filtered(rd, "lqpn", lqpn)) | |
113 | goto out; | |
114 | ||
115 | if (nla_line[RDMA_NLDEV_ATTR_RES_PDN]) | |
116 | pdn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_PDN]); | |
117 | if (rd_check_is_filtered(rd, "pdn", pdn)) | |
118 | goto out; | |
119 | ||
120 | if (nla_line[RDMA_NLDEV_ATTR_RES_RQPN]) { | |
121 | rqpn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_RQPN]); | |
122 | if (rd_check_is_filtered(rd, "rqpn", rqpn)) | |
123 | goto out; | |
124 | } else { | |
125 | if (rd_check_is_key_exist(rd, "rqpn")) | |
126 | goto out; | |
127 | } | |
128 | ||
129 | if (nla_line[RDMA_NLDEV_ATTR_RES_RQ_PSN]) { | |
130 | rq_psn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_RQ_PSN]); | |
131 | if (rd_check_is_filtered(rd, "rq-psn", rq_psn)) | |
132 | goto out; | |
133 | } else { | |
134 | if (rd_check_is_key_exist(rd, "rq-psn")) | |
135 | goto out; | |
136 | } | |
137 | ||
138 | sq_psn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_SQ_PSN]); | |
139 | if (rd_check_is_filtered(rd, "sq-psn", sq_psn)) | |
140 | goto out; | |
141 | ||
142 | if (nla_line[RDMA_NLDEV_ATTR_RES_PATH_MIG_STATE]) { | |
143 | path_mig_state = mnl_attr_get_u8( | |
144 | nla_line[RDMA_NLDEV_ATTR_RES_PATH_MIG_STATE]); | |
145 | if (rd_check_is_string_filtered(rd, "path-mig-state", | |
146 | path_mig_to_str(path_mig_state))) | |
147 | goto out; | |
148 | } else { | |
149 | if (rd_check_is_key_exist(rd, "path-mig-state")) | |
150 | goto out; | |
151 | } | |
152 | ||
153 | type = mnl_attr_get_u8(nla_line[RDMA_NLDEV_ATTR_RES_TYPE]); | |
154 | if (rd_check_is_string_filtered(rd, "type", qp_types_to_str(type))) | |
155 | goto out; | |
156 | ||
157 | state = mnl_attr_get_u8(nla_line[RDMA_NLDEV_ATTR_RES_STATE]); | |
158 | if (rd_check_is_string_filtered(rd, "state", qp_states_to_str(state))) | |
159 | goto out; | |
160 | ||
161 | if (nla_line[RDMA_NLDEV_ATTR_RES_PID]) { | |
162 | pid = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_PID]); | |
163 | comm = get_task_name(pid); | |
164 | } | |
165 | ||
166 | if (rd_check_is_filtered(rd, "pid", pid)) | |
167 | goto out; | |
168 | ||
169 | if (nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME]) | |
170 | /* discard const from mnl_attr_get_str */ | |
171 | comm = (char *)mnl_attr_get_str( | |
172 | nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME]); | |
173 | ||
174 | if (rd->json_output) | |
175 | jsonw_start_array(rd->jw); | |
176 | ||
177 | print_link(rd, idx, name, port, nla_line); | |
178 | ||
179 | res_print_uint(rd, "lqpn", lqpn); | |
180 | if (nla_line[RDMA_NLDEV_ATTR_RES_PDN]) | |
181 | res_print_uint(rd, "pdn", pdn); | |
182 | print_rqpn(rd, rqpn, nla_line); | |
183 | ||
184 | print_type(rd, type); | |
185 | print_state(rd, state); | |
186 | ||
187 | print_rqpsn(rd, rq_psn, nla_line); | |
188 | res_print_uint(rd, "sq-psn", sq_psn); | |
189 | ||
190 | print_pathmig(rd, path_mig_state, nla_line); | |
191 | res_print_uint(rd, "pid", pid); | |
192 | print_comm(rd, comm, nla_line); | |
193 | ||
194 | print_driver_table(rd, nla_line[RDMA_NLDEV_ATTR_DRIVER]); | |
195 | newline(rd); | |
196 | out: | |
197 | if (nla_line[RDMA_NLDEV_ATTR_RES_PID]) | |
198 | free(comm); | |
199 | return MNL_CB_OK; | |
200 | } | |
201 | ||
202 | int res_qp_parse_cb(const struct nlmsghdr *nlh, void *data) | |
203 | { | |
204 | struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {}; | |
205 | struct nlattr *nla_table, *nla_entry; | |
206 | struct rd *rd = data; | |
207 | int ret = MNL_CB_OK; | |
208 | const char *name; | |
209 | uint32_t idx; | |
210 | ||
211 | mnl_attr_parse(nlh, 0, rd_attr_cb, tb); | |
212 | if (!tb[RDMA_NLDEV_ATTR_DEV_INDEX] || !tb[RDMA_NLDEV_ATTR_DEV_NAME] || | |
213 | !tb[RDMA_NLDEV_ATTR_RES_QP]) | |
214 | return MNL_CB_ERROR; | |
215 | ||
216 | name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]); | |
217 | idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]); | |
218 | nla_table = tb[RDMA_NLDEV_ATTR_RES_QP]; | |
219 | ||
220 | mnl_attr_for_each_nested(nla_entry, nla_table) { | |
221 | ret = res_qp_line(rd, name, idx, nla_entry); | |
222 | ||
223 | if (ret != MNL_CB_OK) | |
224 | break; | |
225 | } | |
226 | return ret; | |
227 | } |