SMP we'd like as much feedback as possible from users about possible
locking problems as early as possible.
To negate most of the performance impact I've also enabled
WITNESS_SKIPSPIN. I've done this as we've been running WITNESS
over the spinlock code for a while without incident and it goes a
long way to making the performance problems of WITNESS much more
bearable.
Users who should be running current should know about turning WITNESS
off for performance reasons.
That said and done, WITNESS could/should be made into a tuneable,
but we'll leave that as an excersize to those that want to disable
it without a kernel recompile.
descriptors. This simplifies code for jumbo frames.
- Cleaned up coding conventions to make code more unix-like.
- Cleaned up code in if_em_fxhw.c and if_em_phy.c.
Added relevant comments.
MFC after: 1 week
support for managing both streaming caches on psycho pairs).
Use explicit bus space accesses instead of mapping the device memory into
kva.
Move DVMA allocation to the map creation/dma memory allocation functions.
disable interrupts completely, and stxa_sync(), which performs a store
immediately followed by a membar #Sync with interrupts disabled (this
is needed for writes to diagnostic registers).
slower, and may be impeding adoption of -CURRENT by developers. We
recommend turning on WITNESS by default on crash boxes, and when doing
locking development. It will probably get turned on by default for a week
or two following any major locking commits, also.
Approved by: all and sundry (jhb, phk, ...)
feature bit on newer Athlon CPUs if the BIOS has forgotten to enable
it.
This patch was constructed using some info made available by John
Clemens at http://www.deater.net/john/PavilionN5430.html
Reviewed by: -audit
MFC after: 3 weeks
More cleanups of the RAID1 failure mode code.
Add functionality that writes the changed RAID config setup
back to the disks (in controller BIOS specific format), so
that a reboot will make the BIOS pick up the changed config.
1) We shouldn't continue when we get a RX complete because we ack it
and the TX complete.
2) Fix a couple of spl leaks
(why splbio is needed in ISR, I cannot understand).
MFC after: 3 days
Also, add some 'const's to supress warnings. (Submitted back to NetBSD).
The original logs from NetBSD:
----------------------------
revision 1.90
date: 2001/12/03 01:47:12; author: augustss; lines: +4 -4
Handle vendor/product lookup with a common routine.
----------------------------
revision 1.89
date: 2001/12/02 23:25:25; author: augustss; lines: +18 -2
Add a subroutine to search for a vendor/product pair.
----------------------------
