Vladimir Oltean | 5cf2c75 | 2022-11-21 15:55:41 +0200 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
| 2 | /* |
| 3 | * DSA devlink handling |
| 4 | */ |
| 5 | |
| 6 | #include <net/dsa.h> |
| 7 | #include <net/devlink.h> |
| 8 | |
| 9 | #include "devlink.h" |
| 10 | |
| 11 | static int dsa_devlink_info_get(struct devlink *dl, |
| 12 | struct devlink_info_req *req, |
| 13 | struct netlink_ext_ack *extack) |
| 14 | { |
| 15 | struct dsa_switch *ds = dsa_devlink_to_ds(dl); |
| 16 | |
| 17 | if (ds->ops->devlink_info_get) |
| 18 | return ds->ops->devlink_info_get(ds, req, extack); |
| 19 | |
| 20 | return -EOPNOTSUPP; |
| 21 | } |
| 22 | |
| 23 | static int dsa_devlink_sb_pool_get(struct devlink *dl, |
| 24 | unsigned int sb_index, u16 pool_index, |
| 25 | struct devlink_sb_pool_info *pool_info) |
| 26 | { |
| 27 | struct dsa_switch *ds = dsa_devlink_to_ds(dl); |
| 28 | |
| 29 | if (!ds->ops->devlink_sb_pool_get) |
| 30 | return -EOPNOTSUPP; |
| 31 | |
| 32 | return ds->ops->devlink_sb_pool_get(ds, sb_index, pool_index, |
| 33 | pool_info); |
| 34 | } |
| 35 | |
| 36 | static int dsa_devlink_sb_pool_set(struct devlink *dl, unsigned int sb_index, |
| 37 | u16 pool_index, u32 size, |
| 38 | enum devlink_sb_threshold_type threshold_type, |
| 39 | struct netlink_ext_ack *extack) |
| 40 | { |
| 41 | struct dsa_switch *ds = dsa_devlink_to_ds(dl); |
| 42 | |
| 43 | if (!ds->ops->devlink_sb_pool_set) |
| 44 | return -EOPNOTSUPP; |
| 45 | |
| 46 | return ds->ops->devlink_sb_pool_set(ds, sb_index, pool_index, size, |
| 47 | threshold_type, extack); |
| 48 | } |
| 49 | |
| 50 | static int dsa_devlink_sb_port_pool_get(struct devlink_port *dlp, |
| 51 | unsigned int sb_index, u16 pool_index, |
| 52 | u32 *p_threshold) |
| 53 | { |
| 54 | struct dsa_switch *ds = dsa_devlink_port_to_ds(dlp); |
| 55 | int port = dsa_devlink_port_to_port(dlp); |
| 56 | |
| 57 | if (!ds->ops->devlink_sb_port_pool_get) |
| 58 | return -EOPNOTSUPP; |
| 59 | |
| 60 | return ds->ops->devlink_sb_port_pool_get(ds, port, sb_index, |
| 61 | pool_index, p_threshold); |
| 62 | } |
| 63 | |
| 64 | static int dsa_devlink_sb_port_pool_set(struct devlink_port *dlp, |
| 65 | unsigned int sb_index, u16 pool_index, |
| 66 | u32 threshold, |
| 67 | struct netlink_ext_ack *extack) |
| 68 | { |
| 69 | struct dsa_switch *ds = dsa_devlink_port_to_ds(dlp); |
| 70 | int port = dsa_devlink_port_to_port(dlp); |
| 71 | |
| 72 | if (!ds->ops->devlink_sb_port_pool_set) |
| 73 | return -EOPNOTSUPP; |
| 74 | |
| 75 | return ds->ops->devlink_sb_port_pool_set(ds, port, sb_index, |
| 76 | pool_index, threshold, extack); |
| 77 | } |
| 78 | |
| 79 | static int |
| 80 | dsa_devlink_sb_tc_pool_bind_get(struct devlink_port *dlp, |
| 81 | unsigned int sb_index, u16 tc_index, |
| 82 | enum devlink_sb_pool_type pool_type, |
| 83 | u16 *p_pool_index, u32 *p_threshold) |
| 84 | { |
| 85 | struct dsa_switch *ds = dsa_devlink_port_to_ds(dlp); |
| 86 | int port = dsa_devlink_port_to_port(dlp); |
| 87 | |
| 88 | if (!ds->ops->devlink_sb_tc_pool_bind_get) |
| 89 | return -EOPNOTSUPP; |
| 90 | |
| 91 | return ds->ops->devlink_sb_tc_pool_bind_get(ds, port, sb_index, |
| 92 | tc_index, pool_type, |
| 93 | p_pool_index, p_threshold); |
| 94 | } |
| 95 | |
| 96 | static int |
| 97 | dsa_devlink_sb_tc_pool_bind_set(struct devlink_port *dlp, |
| 98 | unsigned int sb_index, u16 tc_index, |
| 99 | enum devlink_sb_pool_type pool_type, |
| 100 | u16 pool_index, u32 threshold, |
| 101 | struct netlink_ext_ack *extack) |
| 102 | { |
| 103 | struct dsa_switch *ds = dsa_devlink_port_to_ds(dlp); |
| 104 | int port = dsa_devlink_port_to_port(dlp); |
| 105 | |
| 106 | if (!ds->ops->devlink_sb_tc_pool_bind_set) |
| 107 | return -EOPNOTSUPP; |
| 108 | |
| 109 | return ds->ops->devlink_sb_tc_pool_bind_set(ds, port, sb_index, |
| 110 | tc_index, pool_type, |
| 111 | pool_index, threshold, |
| 112 | extack); |
| 113 | } |
| 114 | |
| 115 | static int dsa_devlink_sb_occ_snapshot(struct devlink *dl, |
| 116 | unsigned int sb_index) |
| 117 | { |
| 118 | struct dsa_switch *ds = dsa_devlink_to_ds(dl); |
| 119 | |
| 120 | if (!ds->ops->devlink_sb_occ_snapshot) |
| 121 | return -EOPNOTSUPP; |
| 122 | |
| 123 | return ds->ops->devlink_sb_occ_snapshot(ds, sb_index); |
| 124 | } |
| 125 | |
| 126 | static int dsa_devlink_sb_occ_max_clear(struct devlink *dl, |
| 127 | unsigned int sb_index) |
| 128 | { |
| 129 | struct dsa_switch *ds = dsa_devlink_to_ds(dl); |
| 130 | |
| 131 | if (!ds->ops->devlink_sb_occ_max_clear) |
| 132 | return -EOPNOTSUPP; |
| 133 | |
| 134 | return ds->ops->devlink_sb_occ_max_clear(ds, sb_index); |
| 135 | } |
| 136 | |
| 137 | static int dsa_devlink_sb_occ_port_pool_get(struct devlink_port *dlp, |
| 138 | unsigned int sb_index, |
| 139 | u16 pool_index, u32 *p_cur, |
| 140 | u32 *p_max) |
| 141 | { |
| 142 | struct dsa_switch *ds = dsa_devlink_port_to_ds(dlp); |
| 143 | int port = dsa_devlink_port_to_port(dlp); |
| 144 | |
| 145 | if (!ds->ops->devlink_sb_occ_port_pool_get) |
| 146 | return -EOPNOTSUPP; |
| 147 | |
| 148 | return ds->ops->devlink_sb_occ_port_pool_get(ds, port, sb_index, |
| 149 | pool_index, p_cur, p_max); |
| 150 | } |
| 151 | |
| 152 | static int |
| 153 | dsa_devlink_sb_occ_tc_port_bind_get(struct devlink_port *dlp, |
| 154 | unsigned int sb_index, u16 tc_index, |
| 155 | enum devlink_sb_pool_type pool_type, |
| 156 | u32 *p_cur, u32 *p_max) |
| 157 | { |
| 158 | struct dsa_switch *ds = dsa_devlink_port_to_ds(dlp); |
| 159 | int port = dsa_devlink_port_to_port(dlp); |
| 160 | |
| 161 | if (!ds->ops->devlink_sb_occ_tc_port_bind_get) |
| 162 | return -EOPNOTSUPP; |
| 163 | |
| 164 | return ds->ops->devlink_sb_occ_tc_port_bind_get(ds, port, |
| 165 | sb_index, tc_index, |
| 166 | pool_type, p_cur, |
| 167 | p_max); |
| 168 | } |
| 169 | |
Vladimir Oltean | 7aea535 | 2022-11-21 15:55:43 +0200 | [diff] [blame] | 170 | static const struct devlink_ops dsa_devlink_ops = { |
Vladimir Oltean | 5cf2c75 | 2022-11-21 15:55:41 +0200 | [diff] [blame] | 171 | .info_get = dsa_devlink_info_get, |
| 172 | .sb_pool_get = dsa_devlink_sb_pool_get, |
| 173 | .sb_pool_set = dsa_devlink_sb_pool_set, |
| 174 | .sb_port_pool_get = dsa_devlink_sb_port_pool_get, |
| 175 | .sb_port_pool_set = dsa_devlink_sb_port_pool_set, |
| 176 | .sb_tc_pool_bind_get = dsa_devlink_sb_tc_pool_bind_get, |
| 177 | .sb_tc_pool_bind_set = dsa_devlink_sb_tc_pool_bind_set, |
| 178 | .sb_occ_snapshot = dsa_devlink_sb_occ_snapshot, |
| 179 | .sb_occ_max_clear = dsa_devlink_sb_occ_max_clear, |
| 180 | .sb_occ_port_pool_get = dsa_devlink_sb_occ_port_pool_get, |
| 181 | .sb_occ_tc_port_bind_get = dsa_devlink_sb_occ_tc_port_bind_get, |
| 182 | }; |
| 183 | |
| 184 | int dsa_devlink_param_get(struct devlink *dl, u32 id, |
| 185 | struct devlink_param_gset_ctx *ctx) |
| 186 | { |
| 187 | struct dsa_switch *ds = dsa_devlink_to_ds(dl); |
| 188 | |
| 189 | if (!ds->ops->devlink_param_get) |
| 190 | return -EOPNOTSUPP; |
| 191 | |
| 192 | return ds->ops->devlink_param_get(ds, id, ctx); |
| 193 | } |
| 194 | EXPORT_SYMBOL_GPL(dsa_devlink_param_get); |
| 195 | |
| 196 | int dsa_devlink_param_set(struct devlink *dl, u32 id, |
| 197 | struct devlink_param_gset_ctx *ctx) |
| 198 | { |
| 199 | struct dsa_switch *ds = dsa_devlink_to_ds(dl); |
| 200 | |
| 201 | if (!ds->ops->devlink_param_set) |
| 202 | return -EOPNOTSUPP; |
| 203 | |
| 204 | return ds->ops->devlink_param_set(ds, id, ctx); |
| 205 | } |
| 206 | EXPORT_SYMBOL_GPL(dsa_devlink_param_set); |
| 207 | |
| 208 | int dsa_devlink_params_register(struct dsa_switch *ds, |
| 209 | const struct devlink_param *params, |
| 210 | size_t params_count) |
| 211 | { |
| 212 | return devlink_params_register(ds->devlink, params, params_count); |
| 213 | } |
| 214 | EXPORT_SYMBOL_GPL(dsa_devlink_params_register); |
| 215 | |
| 216 | void dsa_devlink_params_unregister(struct dsa_switch *ds, |
| 217 | const struct devlink_param *params, |
| 218 | size_t params_count) |
| 219 | { |
| 220 | devlink_params_unregister(ds->devlink, params, params_count); |
| 221 | } |
| 222 | EXPORT_SYMBOL_GPL(dsa_devlink_params_unregister); |
| 223 | |
| 224 | int dsa_devlink_resource_register(struct dsa_switch *ds, |
| 225 | const char *resource_name, |
| 226 | u64 resource_size, |
| 227 | u64 resource_id, |
| 228 | u64 parent_resource_id, |
| 229 | const struct devlink_resource_size_params *size_params) |
| 230 | { |
| 231 | return devlink_resource_register(ds->devlink, resource_name, |
| 232 | resource_size, resource_id, |
| 233 | parent_resource_id, |
| 234 | size_params); |
| 235 | } |
| 236 | EXPORT_SYMBOL_GPL(dsa_devlink_resource_register); |
| 237 | |
| 238 | void dsa_devlink_resources_unregister(struct dsa_switch *ds) |
| 239 | { |
| 240 | devlink_resources_unregister(ds->devlink); |
| 241 | } |
| 242 | EXPORT_SYMBOL_GPL(dsa_devlink_resources_unregister); |
| 243 | |
| 244 | void dsa_devlink_resource_occ_get_register(struct dsa_switch *ds, |
| 245 | u64 resource_id, |
| 246 | devlink_resource_occ_get_t *occ_get, |
| 247 | void *occ_get_priv) |
| 248 | { |
| 249 | return devlink_resource_occ_get_register(ds->devlink, resource_id, |
| 250 | occ_get, occ_get_priv); |
| 251 | } |
| 252 | EXPORT_SYMBOL_GPL(dsa_devlink_resource_occ_get_register); |
| 253 | |
| 254 | void dsa_devlink_resource_occ_get_unregister(struct dsa_switch *ds, |
| 255 | u64 resource_id) |
| 256 | { |
| 257 | devlink_resource_occ_get_unregister(ds->devlink, resource_id); |
| 258 | } |
| 259 | EXPORT_SYMBOL_GPL(dsa_devlink_resource_occ_get_unregister); |
| 260 | |
| 261 | struct devlink_region * |
| 262 | dsa_devlink_region_create(struct dsa_switch *ds, |
| 263 | const struct devlink_region_ops *ops, |
| 264 | u32 region_max_snapshots, u64 region_size) |
| 265 | { |
| 266 | return devlink_region_create(ds->devlink, ops, region_max_snapshots, |
| 267 | region_size); |
| 268 | } |
| 269 | EXPORT_SYMBOL_GPL(dsa_devlink_region_create); |
| 270 | |
| 271 | struct devlink_region * |
| 272 | dsa_devlink_port_region_create(struct dsa_switch *ds, |
| 273 | int port, |
| 274 | const struct devlink_port_region_ops *ops, |
| 275 | u32 region_max_snapshots, u64 region_size) |
| 276 | { |
| 277 | struct dsa_port *dp = dsa_to_port(ds, port); |
| 278 | |
| 279 | return devlink_port_region_create(&dp->devlink_port, ops, |
| 280 | region_max_snapshots, |
| 281 | region_size); |
| 282 | } |
| 283 | EXPORT_SYMBOL_GPL(dsa_devlink_port_region_create); |
| 284 | |
| 285 | void dsa_devlink_region_destroy(struct devlink_region *region) |
| 286 | { |
| 287 | devlink_region_destroy(region); |
| 288 | } |
| 289 | EXPORT_SYMBOL_GPL(dsa_devlink_region_destroy); |
| 290 | |
| 291 | int dsa_port_devlink_setup(struct dsa_port *dp) |
| 292 | { |
| 293 | struct devlink_port *dlp = &dp->devlink_port; |
| 294 | struct dsa_switch_tree *dst = dp->ds->dst; |
| 295 | struct devlink_port_attrs attrs = {}; |
| 296 | struct devlink *dl = dp->ds->devlink; |
| 297 | struct dsa_switch *ds = dp->ds; |
| 298 | const unsigned char *id; |
| 299 | unsigned char len; |
| 300 | int err; |
| 301 | |
| 302 | memset(dlp, 0, sizeof(*dlp)); |
| 303 | devlink_port_init(dl, dlp); |
| 304 | |
| 305 | if (ds->ops->port_setup) { |
| 306 | err = ds->ops->port_setup(ds, dp->index); |
| 307 | if (err) |
| 308 | return err; |
| 309 | } |
| 310 | |
| 311 | id = (const unsigned char *)&dst->index; |
| 312 | len = sizeof(dst->index); |
| 313 | |
| 314 | attrs.phys.port_number = dp->index; |
| 315 | memcpy(attrs.switch_id.id, id, len); |
| 316 | attrs.switch_id.id_len = len; |
| 317 | |
| 318 | switch (dp->type) { |
| 319 | case DSA_PORT_TYPE_UNUSED: |
| 320 | attrs.flavour = DEVLINK_PORT_FLAVOUR_UNUSED; |
| 321 | break; |
| 322 | case DSA_PORT_TYPE_CPU: |
| 323 | attrs.flavour = DEVLINK_PORT_FLAVOUR_CPU; |
| 324 | break; |
| 325 | case DSA_PORT_TYPE_DSA: |
| 326 | attrs.flavour = DEVLINK_PORT_FLAVOUR_DSA; |
| 327 | break; |
| 328 | case DSA_PORT_TYPE_USER: |
| 329 | attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL; |
| 330 | break; |
| 331 | } |
| 332 | |
| 333 | devlink_port_attrs_set(dlp, &attrs); |
| 334 | err = devlink_port_register(dl, dlp, dp->index); |
| 335 | if (err) { |
| 336 | if (ds->ops->port_teardown) |
| 337 | ds->ops->port_teardown(ds, dp->index); |
| 338 | return err; |
| 339 | } |
| 340 | |
| 341 | return 0; |
| 342 | } |
| 343 | |
| 344 | void dsa_port_devlink_teardown(struct dsa_port *dp) |
| 345 | { |
| 346 | struct devlink_port *dlp = &dp->devlink_port; |
| 347 | struct dsa_switch *ds = dp->ds; |
| 348 | |
| 349 | devlink_port_unregister(dlp); |
| 350 | |
| 351 | if (ds->ops->port_teardown) |
| 352 | ds->ops->port_teardown(ds, dp->index); |
| 353 | |
| 354 | devlink_port_fini(dlp); |
| 355 | } |
Vladimir Oltean | 7aea535 | 2022-11-21 15:55:43 +0200 | [diff] [blame] | 356 | |
| 357 | void dsa_switch_devlink_register(struct dsa_switch *ds) |
| 358 | { |
| 359 | devlink_register(ds->devlink); |
| 360 | } |
| 361 | |
| 362 | void dsa_switch_devlink_unregister(struct dsa_switch *ds) |
| 363 | { |
| 364 | devlink_unregister(ds->devlink); |
| 365 | } |
| 366 | |
| 367 | int dsa_switch_devlink_alloc(struct dsa_switch *ds) |
| 368 | { |
| 369 | struct dsa_devlink_priv *dl_priv; |
| 370 | struct devlink *dl; |
| 371 | |
| 372 | /* Add the switch to devlink before calling setup, so that setup can |
| 373 | * add dpipe tables |
| 374 | */ |
| 375 | dl = devlink_alloc(&dsa_devlink_ops, sizeof(*dl_priv), ds->dev); |
| 376 | if (!dl) |
| 377 | return -ENOMEM; |
| 378 | |
| 379 | ds->devlink = dl; |
| 380 | |
| 381 | dl_priv = devlink_priv(ds->devlink); |
| 382 | dl_priv->ds = ds; |
| 383 | |
| 384 | return 0; |
| 385 | } |
| 386 | |
| 387 | void dsa_switch_devlink_free(struct dsa_switch *ds) |
| 388 | { |
| 389 | devlink_free(ds->devlink); |
| 390 | ds->devlink = NULL; |
| 391 | } |