greatly improved traceback code from Ross Harvey. This code
requires the use of more traceback friendly temporary labels
at kernel entry points, hence the changes to exception.s and
asm.h
Reviewed by: jhb, dfr
Obtained from: NetBSD
MFC after: 1 week
higher chips. Treat it as if it were a 113x. This is correct as far
as 16-bit cards go, at least how we're using it.
# It appears that my TI-1031 based pci card that YAMAMOTO shigeru-san gave
# me on my trip to Japan now works.
around, use a common function for looking up and extracting the tunables
from the kernel environment. This saves duplicating the same function
over and over again. This way typically has an overhead of 8 bytes + the
path string, versus about 26 bytes + the path string.
use of the extsts field in DMA descriptors. We need this to tell the chip
to calculate TCP/IP checksums in hardware on a per-packet basis.
- Fix the unions in DMA descriptor structures. Breakage on alpha led
me to realize I'd done it wrong the first time.
that device add/remove will work without usbd running. usbd is still
used for execing stuff, but that is all now. Ideally it could be replaced
by a devd some day. Until now, usbd had to be running so that the
USB_DISCOVER ioctl could be called to walk the tree when an attachment
status change was noticed.
Among the changes:
- when a detach happens, remove any pending 'attach' messages or the system
suffers from whiplash from exec moused / kill moused loops if you do lots
of attach/detach and later start usbd.
- tweaks related to kthread differences
- disable the select handler for the old interface (never return success).
I have not removed it yet or old usbd's will abort. That can get removed
later once usbd is cleaned up and things have stabilized for a few weeks.
- get Giant in the kthread.
- a couple of minor potential bug fixes (usb_nevents vs malloc failure etc)
Pre-approved by: n_hibma (ages and ages ago)
One way we can reduce the amount of traffic we send in response to a SYN
flood is to eliminate the RST we send when removing a connection from
the listen queue. Since we are being flooded, we can assume that the
majority of connections in the queue are bogus. Our RST is unwanted
by these hosts, just as our SYN-ACK was. Genuine connection attempts
will result in hosts responding to our SYN-ACK with an ACK packet. We
will automatically return a RST response to their ACK when it gets to us
if the connection has been dropped, so the early RST doesn't serve the
genuine class of connections much. In summary, we can reduce the number
of packets we send by a factor of two without any loss in functionality
by ensuring that RST packets are not sent when dropping a connection
from the listen queue.
Submitted by: Mike Silbersack <silby@silby.com>
Reviewed by: jesper
MFC after: 2 weeks
not behaving correctly. Fix by attaching to the correct socket.
Also call so{rw}wakeup in addition to the fifo wakeup, so that any
kqfilters attached to the socket buffer get poked.
is usually (always?) used in expressions like (KTR_COMPILE & KTR_FOO).
Defining it as KTR_INTR|KTR_PROC gave the wrong value in approximately
8497 places according to error output for compiling LINT.
ep driver. The rest of the patch will wait until I can put the time
into it to get it righter than the kludge it is.
This protects us against card eject problems at all times,e xecpt when
we're in the epintr ISR.
PCN_BCR_CLRBIT(sc, PCN_BCR_MIICTL, PCN_MIICTL_DANAS);
should be:
PCN_BCR_SETBIT(sc, PCN_BCR_MIICTL, PCN_MIICTL_DANAS);
Turning this bit on is what disables MII autoneg, not turning it off.
Without this, manually setting the media doesn't work.
Noticed by: Jim Browne <jbrowne@jbrowne.com>
