This change adds uverbs support for allocation/freeing of device memory commands. A new uverbs object is defined of type idr to represent and track the new resource type allocation per context. The API requires provider driver to implement 2 new ib_device callbacks - one for allocation and one for deallocation which return and accept (respectively) the ib_dm object which represents the allocated memory on the device. The support is added via the ioctl command infrastructure only.
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| @@ -54,6 +54,7 @@ enum uverbs_default_objects { · 53 unmodified lines | ||
| 54 | 54 | UVERBS_OBJECT_RWQ_IND_TBL, |
| 55 | 55 | UVERBS_OBJECT_WQ, |
| 56 | 56 | UVERBS_OBJECT_FLOW_ACTION, |
| 57 | + UVERBS_OBJECT_DM, | |
| 57 | 58 | }; |
| 58 | 59 | |
| 59 | 60 | enum { |
| @@ -100,4 +101,18 @@ enum uverbs_methods_actions_flow_action_ops { · 40 unmodified lines | ||
| 100 | 101 | UVERBS_METHOD_FLOW_ACTION_ESP_MODIFY, |
| 101 | 102 | }; |
| 102 | 103 | |
| 104 | +enum uverbs_attrs_alloc_dm_cmd_attr_ids { | |
| 105 | + UVERBS_ATTR_ALLOC_DM_HANDLE, | |
| 106 | + UVERBS_ATTR_ALLOC_DM_LENGTH, | |
| 107 | + UVERBS_ATTR_ALLOC_DM_ALIGNMENT, | |
| 108 | +}; | |
| 109 | + | |
| 110 | +enum uverbs_attrs_free_dm_cmd_attr_ids { | |
| 111 | + UVERBS_ATTR_FREE_DM_HANDLE, | |
| 112 | +}; | |
| 113 | + | |
| 114 | +enum uverbs_methods_dm { | |
| 115 | + UVERBS_METHOD_DM_ALLOC, | |
| 116 | + UVERBS_METHOD_DM_FREE, | |
| 117 | +}; | |
| 103 | 118 | #endif |