Devlink health buffer is a mechanism to pass descriptors between drivers and devlink. The API allows the driver to add objects, object pair, value array (nested attributes), value and name. Driver can use this API to fill the buffers in a format which can be translated by the devlink to the netlink message. In order to fulfill it, an internal buffer descriptor is defined. This will hold the data and metadata per each attribute and by used to pass actual commands to the netlink. This mechanism will be later used in devlink health for dump and diagnose data store by the drivers.
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| @@ -285,6 +285,14 @@ enum devlink_attr { · 284 unmodified lines | ||
| 285 | 285 | DEVLINK_ATTR_REGION_CHUNK_ADDR, /* u64 */ |
| 286 | 286 | DEVLINK_ATTR_REGION_CHUNK_LEN, /* u64 */ |
| 287 | 287 | |
| 288 | + DEVLINK_ATTR_HEALTH_BUFFER_OBJECT, /* nested */ | |
| 289 | + DEVLINK_ATTR_HEALTH_BUFFER_OBJECT_PAIR, /* nested */ | |
| 290 | + DEVLINK_ATTR_HEALTH_BUFFER_OBJECT_NAME, /* string */ | |
| 291 | + DEVLINK_ATTR_HEALTH_BUFFER_OBJECT_VALUE, /* nested */ | |
| 292 | + DEVLINK_ATTR_HEALTH_BUFFER_OBJECT_VALUE_ARRAY, /* nested */ | |
| 293 | + DEVLINK_ATTR_HEALTH_BUFFER_OBJECT_VALUE_TYPE, /* u8 */ | |
| 294 | + DEVLINK_ATTR_HEALTH_BUFFER_OBJECT_VALUE_DATA, /* dynamic */ | |
| 295 | + | |
| 288 | 296 | /* add new attributes above here, update the policy in devlink.c */ |
| 289 | 297 | |
| 290 | 298 | __DEVLINK_ATTR_MAX, |