a bunch of frames. In this case, the dc_link flag is cleared, and dc_start()
stops draining the if_snd send queue, which results in lots of 'no buffers
available' errors being reported to applications. The whole idea behind
not draining the send queue until the link comes up was to avoid having
the gratuitous ARP being lost while we're waiting for autoneg to complete
after the interface is first brought up. As an optimization, change the
test in dc_start() so that we only bail if dc_link is not set _and_ there
are less than 10 packets in the send queue. If the queue has many frames
in it, we need to drain them. If the queue has a small number of frames
in it, we can hold off on sending them until the link comes up.
MFC after: 1 week
We originally had it such that if the connection topology was FL-loop
(public loop), we never looked at any local loop addresses. The reason
for not doing that was fear or concern that we'd see the same local
loop disks reflected from the name server and we'd attach them twice.
However, when I recently hooked up a JBOD and a system to an ANCOR SA-8
switch, the disks did *not* show up on the fabric. So at least the
ANCOR is screening those disks from appearing on the fabric. Now, it's
possible this is a 'feature' of the ANCOR. When I get a chance, I'll
check the Brocade (it's hard to do this on a low budget).
In any case, if they *do* also show up on the fabric, we should
simply elect to not log into them because we already have an
entry for the local loop. There is relatively unexercised code
just for this case.
MFC after: 2 weeks
1) Bite the bullet, and allow unaligned accesses without buffer copies
on the i386 platform. According to some tests run by Andrew Gallatin,
the buffer copy performance hit is greater than the unaligned access
performance hit (especially with jumbo frames). We still need to copy
everywhere else.
2) Enable interrupt moderation with a 100us timeout.
Submitted by: Andrew Gallatin <no longer at duke.edu>
MFC after: 1 week
- When both SC_PIXEL_MODE and SC_NO_FONT_LOADING are defined,
quietly drop SC_NO_FONT_LOADING, because the pixel(raster)
console requires font.
- When SC_NO_FONT_LOADING is defined, force SC_ALT_MOUSE_IMAGE.
Without font, the arrow-shaped mouse cursor cannot be drawn.
- Fiddle and simplify some internal macros.
MFC after: 2 weeks
haven't been probed successfully. It's a known bug that ISA hints
processing instantiates those devices, and prematurely killing them
has other unwanted side-effects.
where they will never succeed. Add a stop-gap measure that will at
least eventually timeout the operation instead of retrying it
indefinately.
MFC after: 1 month
Despite of a few cosmetic things like adding ``irritating silly
parentheses'' around all return values, this mainly improves FDC reset
handling by no longer gratuitously resetting the FDC all the time
(which causes it to lose the notion of the current track) but only in
case of errors, and it sanitizes the block and offset calculations in
fdstrategy() and fdstate(). Some additional cleanup added by me, in
particular the large switch in fdstate() now always uses return to
break out, and no branch falls off the end of the switch statement
anymore. Per Bruce's suggestion, removed M_NOWAIT from the malloc()s
to simplify things.
Submitted by: bde (mostly)
Previously, I had the MODE_1000 bit in the global config register set
unconditionally, which was wrong: we have to turn it off if we have
a 10/100 link. This is now handled in the nge_miibus_statchg() routine.
Discovered by: Nathan Binkert <binkertn@eecs.umich.edu>
(Note: this commit is being done from JFK airport. :P )
Monitor the system power profile, and use _SCP to adjust thermal zones
accordingly.
Simplify the behaviour of the timeout routine, and add some temporary
debugging.
PCI bus object. This should deal both with already-routed interrupts
as well as devices that need an interrupt routed.
Note that it *doesn't* deal with interlocked interrupt dependancies, nor
does it select between interrupt options in a smart way. These are
optimisations that need further work.
is a parallel adjunct to active cooling, not a lesser evil. The _ACx
levels sort from 0 being hottest, not coolest.
Sanity check the returned temperature values, since we are having
trouble reading them on some systems.
Rearrange sysctl nodes a bit; this is probably close to the final layout.
destroyed properly (otherwise bad things would happen after a clone
dev had been created, and the module was kldunloaded). Allocated
children that have not successfully probed are being deleted again
(otherwise fd0 and fd1 have always been allocated, even if only
fd0 was acutally present, and fd1 even survived kldunloading the
module).
Still, kldunloading leaves remnants of the previously existing devices
intact. Why doesn't it destroy all the devices? As a consequence,
since dev->descr now points into no longer allocated memory, the
system panics deep inside printf(9) when running devinfo(1) after
kldunloading the module. Ideas sought...
Also, when kldloading the module on a hints-populated isab0, this bus
somehow has already created an fdc0 entry (a dummy) so the load
attempt fails and will register fdc1 instead. What are those dummy
entries for? Loading the module from the bootloader works, and it
can be unloaded an re-loaded then later.
For fibre channel, start going for the gusto and using AC_FOUND_DEVICE
and AC_LOST_DEVICE calls to xpt_async when devices appear and disappear
as the loop or fabric changes.
ISPASYNC_FW_CRASH is the async event code where the platform layer
deals with a firmware crash.
some of the RIO (reduced interrupt operation) stuff. Add 64 bit
data list (DSD type 1) and arbitrary data list (DSD type 2)
data structure defines.
Add macros that parameterize usage of the Request/Response in/out
queue pointers. When we finish 2300 support, different registers
will be accessed for the 2300.
part of the PCI block for the 2300- not software convention usage
of the mailbox registers- so we macrosize in/out pointer usage.
Only report that a LIP destroyed commands if it actually destroyed
commands. Get the chan/tgt/lun order correct. Fix a longstanding
stupid bug that caused us to try and issue a command with a tag on
Channel B because we were checking the tagged capability for the
target against Channel A.
A firmware crash is now vectored out to platform specific code
as an async event.
Some minor formatting tweaks.
