hi Damjan,vppsb router plugin used routing table manipulation APIs. is it
needed to do lock in this operations?this functions called when netlink message
arrived.
used APIs: fib_table_entry_delete fib_table_entry_path_remove2
fib_table_entry_update fib_table_entry_path_add2
is there any documents for safe manipulation of fib tables from plugins?
thanks.
On Wednesday, October 3, 2018, 12:04:31 PM GMT+3:30, Damjan Marion via
Lists.Fd.Io <[email protected]> wrote:
On 3 Oct 2018, at 09:30, Alok Makhariya <[email protected]> wrote:
Hi In one of our VPP plugin, we have CLI’s which is used to display some info
and this is time consuming.Thus the main thread, which is busy doing the above,
cannot interact with the control plane which interacts with the main thread
over the shared memory interface for this duration.Does VPP support offloading
the CLI handling to a thread other than the main thread ?
Easiest way to address this is to periodically suspend your calculation by
using vlib_process_suspend()that will give chance to other process nodes to do
some work.
Also, please note that all debug CLIs by default are considered thread unsafe,
which means that workerthreads are stopped during their execution and that
typically happens for few hundred microseconds.After making your CLI handler
thread safe, you can specify:
VLIB_CLI_COMMAND (foo_cli_command, static) = {[snip] .is_mp_safe = 1;};
Similar applies to API handlers...
--
Damjan
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