diff options
Diffstat (limited to 'Documentation/networking/switchdev.txt')
| -rw-r--r-- | Documentation/networking/switchdev.txt | 19 |
1 files changed, 0 insertions, 19 deletions
diff --git a/Documentation/networking/switchdev.txt b/Documentation/networking/switchdev.txt index 633dd1fd81b7..86174ce8cd13 100644 --- a/Documentation/networking/switchdev.txt +++ b/Documentation/networking/switchdev.txt @@ -371,22 +371,3 @@ The driver can monitor for updates to arp_tbl using the netevent notifier NETEVENT_NEIGH_UPDATE. The device can be programmed with resolved nexthops for the routes as arp_tbl updates. The driver implements ndo_neigh_destroy to know when arp_tbl neighbor entries are purged from the port. - -Transaction item queue -^^^^^^^^^^^^^^^^^^^^^^ - -For switchdev ops attr_set and obj_add, there is a 2 phase transaction model -used. First phase is to "prepare" anything needed, including various checks, -memory allocation, etc. The goal is to handle the stuff that is not unlikely -to fail here. The second phase is to "commit" the actual changes. - -Switchdev provides an infrastructure for sharing items (for example memory -allocations) between the two phases. - -The object created by a driver in "prepare" phase and it is queued up by: -switchdev_trans_item_enqueue() -During the "commit" phase, the driver gets the object by: -switchdev_trans_item_dequeue() - -If a transaction is aborted during "prepare" phase, switchdev code will handle -cleanup of the queued-up objects. |