Hi,
I thought I'd post here instead of nfsv4@xxxxxxxx since I
think the Linux server has been implementing this recently.
I am not interested in making the FreeBSD NFSv4.1/4.2
server dynamically resize slot tables in sessions, but I do
want to make sure the FreeBSD handles this case correctly.
Here is what I believe is supposed to be done:
For growing the slot table...
- Server/replier sends SEQUENCE replies with both
sr_highest_slot and sr_target_highest_slot set to a larger value.
--> The client can then use those slots with
sa_sequenceid set to 1 for the first SEQUENCE operation on
each of them.
For shrinking the slot table...
- Server/replier sends SEQUENCE replies with a smaller
value for sr_target_highest_slot.
- The server/replier waits for the client to do a SEQUENCE
operation on one of the slot(s) where the server has replied
with the smaller value for sr_target_highest_slot with a
sa_highest_slot value <= to the new smaller
sr_target_highest_slot
- Once this happens, the server/replier can set sr_highest_slot
to the lower value of sr_target_highest_slot and throw the
slot table entries above that value away.
--> Once the client sees a reply with sr_target_highest_slot set
to the lower value, it should not do any additional SEQUENCE
operations with a sa_slotid > sr_target_highest_slot
Does the above sound correct?
Thanks for any information, rick
