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| author | Florian Fainelli <f.fainelli@gmail.com> | 2019-02-28 03:29:16 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-03-02 08:35:19 +0300 |
| commit | 91cf8eceffc131d41f098351e1b290bdaab45ea7 (patch) | |
| tree | 098881e99e25b91544083b0657a0eb3060eb7d5c /Documentation/networking | |
| parent | 9bfc445e0eece65b51305c47d7c84d8f34c2f7c1 (diff) | |
| download | linux-91cf8eceffc131d41f098351e1b290bdaab45ea7.tar.xz | |
switchdev: Remove unused transaction item queue
There are no more in tree users of the
switchdev_trans_item_{dequeue,enqueue} or switchdev_trans_item structure
in the kernel since commit 00fc0c51e35b ("rocker: Change world_ops API
and implementation to be switchdev independant").
Remove this unused code and update the documentation accordingly since.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/networking')
| -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. |