net/smc: add new link state and related helpers

Browse source

Before a link can be reused it must have been cleared. Lowest current
link state is INACTIVE, which does not mean that the link is already
cleared.
Add a new state UNUSED that is set when the link is cleared and can be
reused.
Add helper smc_llc_usable_link() to find an active link in a link group,
and smc_link_usable() to determine if a link is usable.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

This commit is contained in:

Karsten Graul 2020-04-29 17:10:43 +02:00 • committed by David S. Miller

parent e07d31dc16

commit d854fcbfae

5 changed files with 42 additions and 20 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

36

net/smc/smc_core.c

View file

9

net/smc/smc_core.h

View file

4

net/smc/smc_llc.c

View file

11

net/smc/smc_llc.h

View file

2

net/smc/smc_wr.c

View file