On Thu, Apr 16, 2020 at 07:35:14PM +0300, michaelsh@xxxxxxxxxxxx wrote: > From: Michael Shych <michaelsh@xxxxxxxxxxxx> > > Add documentation with details of new type of Mellanox watchdog driver. > > Signed-off-by: Michael Shych <michaelsh@xxxxxxxxxxxx> > Stray empty line. Also, the subject should reflect the driver name. Guenter > Reviewed-by: Vadim Pasternak <vadimp@xxxxxxxxxxxx> > --- > Documentation/watchdog/mlx-wdt.rst | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/Documentation/watchdog/mlx-wdt.rst b/Documentation/watchdog/mlx-wdt.rst > index bf5bafac47f0..fa0a94e5c82e 100644 > --- a/Documentation/watchdog/mlx-wdt.rst > +++ b/Documentation/watchdog/mlx-wdt.rst > @@ -24,10 +24,19 @@ Type 2: > Maximum timeout is 255 sec. > Get time-left is supported. > > +Type 3: > + Same as Type 2 with extended maximum timeout period. > + Maximum timeout is 65535 sec. > + > Type 1 HW watchdog implementation exist in old systems and > all new systems have type 2 HW watchdog. > Two types of HW implementation have also different register map. > > +Type 3 HW watchdog implementation can exist on all Mellanox systems > +with new programmer logic device. > +It's differentiated by WD capability bit. > +Old systems still have only one main watchdog. > + > Mellanox system can have 2 watchdogs: main and auxiliary. > Main and auxiliary watchdog devices can be enabled together > on the same system. > -- > 2.11.0 >
