- Replace the global driver lock with a per-instance device lock.
- Use the per-instance device lock instead of Giant for the CAM sim lock.
- Add global locks to protect the adapter list and DPC queues.
- Use wakeup() and mtx_sleep() to wait for certain events like the
controller going idle rather than polling via timeouts passed to
tsleep().
- Use callout(9) instead of timeout(9).
- Mark the interrupt handler MPSAFE.
- Remove compat shims for FreeBSD versions older than 8.0.
Reviewed by: Steve Chang <ychang@highpoint-tech.com>
These changes prevent sysctl(8) from returning proper output,
such as:
1) no output from sysctl(8)
2) erroneously returning ENOMEM with tools like truss(1)
or uname(1)
truss: can not get etype: Cannot allocate memory
there is an environment variable which shall initialize the SYSCTL
during early boot. This works for all SYSCTL types both statically and
dynamically created ones, except for the SYSCTL NODE type and SYSCTLs
which belong to VNETs. A new flag, CTLFLAG_NOFETCH, has been added to
be used in the case a tunable sysctl has a custom initialisation
function allowing the sysctl to still be marked as a tunable. The
kernel SYSCTL API is mostly the same, with a few exceptions for some
special operations like iterating childrens of a static/extern SYSCTL
node. This operation should probably be made into a factored out
common macro, hence some device drivers use this. The reason for
changing the SYSCTL API was the need for a SYSCTL parent OID pointer
and not only the SYSCTL parent OID list pointer in order to quickly
generate the sysctl path. The motivation behind this patch is to avoid
parameter loading cludges inside the OFED driver subsystem. Instead of
adding special code to the OFED driver subsystem to post-load tunables
into dynamically created sysctls, we generalize this in the kernel.
Other changes:
- Corrected a possibly incorrect sysctl name from "hw.cbb.intr_mask"
to "hw.pcic.intr_mask".
- Removed redundant TUNABLE statements throughout the kernel.
- Some minor code rewrites in connection to removing not needed
TUNABLE statements.
- Added a missing SYSCTL_DECL().
- Wrapped two very long lines.
- Avoid malloc()/free() inside sysctl string handling, in case it is
called to initialize a sysctl from a tunable, hence malloc()/free() is
not ready when sysctls from the sysctl dataset are registered.
- Bumped FreeBSD version to indicate SYSCTL API change.
MFC after: 2 weeks
Sponsored by: Mellanox Technologies
- override_kernel_driver() has been removed since this is an
in-tree version of driver.
- __DATE__ and __TIME__ removed from version string to make
binary update builders happy.
- Utilize pause(9) for __FreeBSDversion >= 700033 (redo 167086).
- Utilize kproc_suspend_check() for __FreeBSDversion >= 800002.
(redo 172836).
- Don't read past end of pVDevice (redo 143787).
- Make sure that controller and channel are initialized (redo 169823).
- Don't include cam/cam_xpt_periph.h (redo 158177).
MFC After: 3 days
here is the support for amd64, as well as possible support for PAE. Many
thanks to Highpoint for continuing to support FreeBSD.
Obtained from: Steve Chang @ Highpoint
MFC After: 3 days.
