floating point arithmetic
For single precision instruction, calculate first in double precision,
and then round it. With this fix, single precision arithmetic gets sane
on ibm4xx and booke.
Taken from FreeBSD commit r258250:
https://svnweb.freebsd.org/base?view=revision&revision=258250
Ok matt and simonb.
Addresses PR kern/51703: audio fails to attach if hardware can't do CD
quality.
Autoconfiguration of hw paramaters to be done later. For now it is
possibile to set 8 bits precision 8000 Hz 1 channel via sysctls.
and WUFC register if wol_enable is 0. ixgbe_setup_low_power_mode() calls
ixgbe_stop() and it resets the chip. The reset change WUC and WUFC registers to
the default, so clearing WUC and WUFC should be done after ixgbe_stop().
The data can be accessed from sysctl, ioctl, interface watchdog
(if_slowtimo) and interrupt handlers. We need to protect the data against
parallel accesses from them.
Currently the mutex is applied to some drivers, we need to apply it to all
drivers in the future.
Note that the mutex is adaptive one for ease of implementation but some
drivers access the data in interrupt context so we cannot apply the mutex
to every drivers as is. We have two options: one is to replace the mutex
with a spin one, which requires some additional works (see
ether_multicast_sysctl), and the other is to modify the drivers to access
the data not in interrupt context somehow.
carp_clone_destroy calls ether_ifdetach so not calling ether_ifattach is
inconsistent. If we add something pair of initialization and destruction
to ether_ifattach and ether_ifdetach (e.g., mutex_init/mutex_destroy),
ether_ifdetach of carp_clone_destroy won't work. So use ether_ifattach.
In order to do so, make ether_ifattach accept the 2nd argument (lla) as
NULL to allow carp to initialize its link level address by itself.
Audio won't be able to be opened though unless a common format is
configured properly.
This would alow the user to change the common format via sysctls
until hardware is configured.
Simplification of several functions.
up using the old key until vcache_rekey_exit changes the key to the new one.
Add an assertion that the temporary key is different from the current one.
Looks like the '%Q%' was supposed to be translated to an actual date through
some tool but neither the README nor the Makefile say anything. So just
setting the date manually.
ok wiz@
