some Toshiba and Thinkpad laptops.
Wakeup event is generated by power button or sleep button on some
laptops but this also generates SCI interrupt, and shutdown the system
as result. So this is introduced so that acpi driver ignore given
requests for certain period.
the UFI command set. Even with this patch, it's incredibly slow on my
laptop, but at least now it works.
Note that the drive is reported to CAM with the vendor and device IDs from
the device itself, forcing the user to patch the da(4) quirk table
manually.
controllers. There still seems to be some issues with the DRI copying code
for some adapters, at least it doesn't hang the system now. Input would be
appreciated.
PR: 32301
Obtained from: Eric Anhlot <eanholt@gladstone.uoregon.edu>, Joe <joeo@nks.net>
The reason we are required to commit to -current first is so that later
MFC's do not risk the loss of existing bug fixes. Even if this was not
strictly required in -current, it should still be fixed there too.
1. Changed incorrect conditional in fxhw.c which would never
evaluate to true. Thanks to John Polstra for pointing that out.
2. Write to PCI config space by default, enabling memory access and
bus master enable.
Submitted by:Prafulla Deuskar
MFC after:3 days
Similar code was submitted in PR 5559 by Takeshi OHASHI-san, but the
PC Card system has changed much since then, so this is a fresh
implementation.
PR: i386/5559
Submitted by: Takeshi OHASHI
prism2 flag in pccard.conf, but I'm leaving it place for the moment in
case the small sample of PrismII cards that I've tried is not
representative.
MFC After: 30 days
Obtained from: NetBSD
released management apps.
1. Implement poll(). This will check for queued aif's so that a
subsequent ioctl call to retrieve the next aif will not block.
2. Don't catch signals when sleeping on a fib sent from userland. This
causes a race and panic due to the pthread context switcher waking
up the tsleep at inopportune times.
3. Fix some whitespace nits.
MFC after: 3 days
- set sc->acpi_s4bios to 1 by default for hibernation until
OS-initiated S4 transition is implemented.
- change the behavior of acpi_sleep_state_sysctl() if new value is
the same as old one, do nothing instead of EINVAL.
mbuf allocation fails, and fix (i hope) a couple of style bugs.
I believe these printf() are extremely dangerous because now they can
occur on every incoming packet and are not rate limited. They were
meant to warn the sysadmin about lack of resources, but now they
can become a nice way to panic your system under load.
Other drivers (e.g. the fxp driver) have nothing like this.
There is a pending discussion on putting this kind of warnings
elsewhere, and I hope we can fix this soon.
underlying unaligned bcopy) on incoming packets that are already
available (albeit unaligned) in a buffer.
The performance improvement varies, depending on CPU and memory
speed, but can be quite large especially on slow CPUs. I have seen
over 50% increase on forwarding speed on the sis driver for the
486/133 (embedded systems), which does exactly the same thing.
The behaviour is controlled by a sysctl variable, hw.dc_quick which
defaults to 1. Set it to 0 to restore the old behaviour.
After running a few experiments (in userland, though) I am convinced
that doing the m_devget() is detrimental to performance in almost
all cases.
Even if your CPU has degraded performance with misaligned data,
the bcopy() in the driver has the same overhead due to misaligment
as the one that you save in the uiomove(), plus you do one extra
copy and pollute the cache.
But more often than not, you do not even have to touch the payload,
e.g. when you are forwarding packets, and even in the often-cited
case of NFS, you often end up passing a pointer to the payload to
the disk controller.
In any case, you can play with the sysctl variable to toggle between
the two behaviours, and see if it makes a difference.
MFC-after: 3 days
allows us to move the sio softc data structure back into sio.c and
reduce the complexity of the non sio.c sio files.
Submitted by: bde
# I didn't fix the locking issues that bruce also submitted.
loader parameter. This allows us to more easily boot on big memory
configuration machines. hw.pccbb.start_mem. Reflect this in a sysctl
so we can read it from userland.
# Note: we need a TUNABLE_ULONG to do this right. I'll add that to
# kernel.h soon.
request to one that's supported by the bridge. I'm not 100% sure this
is correct, but it makes it easier for the cardbus bridge to allocate
its memory.
Similar code is needed for the I/O range. Also, I'm not sure if I
should be doing this based on memory or pmemory (but likely should do
it based on some flag that tells us to prefetch or not).
Talked about a long time ago with: msmith
NEWCARD. Other patches may be reqiured to sio to prevent a hang on
eject. Also add commented out entries for sio_pccard.c in files.pc98
to match other architectures.
Submitted by: yamamoto shigeru-san
changing. Also change it from 0x44000000 to 0x84000000 for large memory
machines.
# the PCI bus code should do this for us. This is a bandaide, not a
# solution.
click) do not include newline into the buffer. This is exacly how
things worked before my recent changes to the cut'n'paste code and
how they work in 4-STABLE.
card is ejected while we're in this routine.
yamamoto-san's original patch had a small race window for AX88190
chips, which I corrected by limiting the number of iterations we'd try
to reset the bits to be about 15ms rather than forever. This seems to
work for me, but I don't have a large collections of cards based on
this chipset.
Submitted by: YAMAMOTO Shigeru
