bus_dma_tag_create. We need to be sure that our packets are
kept in-sequence (that's how ATM is supposed to work) and
therefor use BUS_DMA_NOWAIT in all calls to bus_dmamap_load.
For memory allocated with bus_dmamem_alloc the use of anything
other than NULL arguments for the locking is anyway bogus because
this memory never should need bouncing and hence the load should never
be defered.
Allow the receipt of OAM and RM cells on raw connections. Caveat: it seems
that RM cells are still processed by the hardware even when we open the
connection as UBR.
register, present only on 3c90xB and later NICs. This meant that you could
not use a 1500 byte MTU with VLANs on original 3c905/3c900 cards (boomerang
chipset). The boomerang chip does support large frames though, just not
in the same way: you can set the 'allow large frames' bit in the MAC
control register to receive frames up to 4K in size.
Changes:
- Set the 'allow large frames' bit for boomerang chips and increase
the packet size register for cyclone and later chips. This allows
us to use IFCAP_VLAN_MTU on all supported xl(4) NICs.
- Actually set the IFCAP_VLAN_MTU flag in the capabilities word
in xl_attach().
- Change the method used to detect older boomerang chips. My 3c575C
cardbus NIC was being incorrectly identified as 3c90x chip instead
of 3c90xB because the capabilities word in its EEPROM reports
a bizzare value. In addition to checking for the supportsNoTxLength
bit, also check for the absence of the supportsLargePackets bit.
Both of these cases denote a 3c90xB chip.
- Make RX and TX checksums configurable via the SIOCSIFCAP ioctl.
- Avoid an unecessary le32toh() in xl_rxeof(): we already have the
received frame size in the lower 16 bits of rxstat, no need to
read it again.
Tested with 3c905-TX, 3c900-TPO, 3c980C and 3c575C NICs.
instead of SENDMAIL_MC but don't remove on it 'make clean' as the
user may not have the original .mc file and removing it could be
dangerous (e.g., make SENDMAIL_CF=/etc/mail/sendmail.cf clean).
Noticed by: peter
MFC after: 3 days
on the implied sign extension. The single unified VADDR() macro was
not able to avoid sign extending the VM_MAXUSER_ADDRESS/USRSTACK values.
Be explicit about UVADDR() (positive address space) and KVADDR()
(kernel negative address space) to make mistakes show up more
spectacularly.
Increase user VM space from 1/2TB (512GB) to 128TB.
corresponding release code. This was preventing the use of more than
1/2TB of user VM. I also spent a week staring at this code only to
eventually find that I'd mistakenly typed a P as an R.
rather than a non-existing pte. There is code elsewhere in i386/amd64
pmap that neglects to handle the large page cases because it knows that
it will see PG_PS in the returned "pte".
- Use atomic ops to update the bigpipe count
- Make the bigpipe count sysctl readable
- Remove a duplicate comparison in an if statement
- Comment two SYSCTLs.
extra trailing space.
- Don't bother probing a generic ISA bus device if isab0 already exists.
Some BIOSes place an ACPI psuedo-device with the HID of a generic ISA bus
device under the PCI-ISA bridge device. This is not the best solution
but will work for now. The isa bus driver only allows for one ISA bus
anyways.
having the PCI-ISA bridge driver depend on both pci and isa.
- Have the PCI-EISA bridge driver depend on both pci and eisa as well.
- Make acpi_isab.c depend on acpi and isa.
Submitted by: Marius Strobl <marius@alchemy.franken.de> (1,2)
its waitset, but if the signal is not masked by the thread, the signal
can interrupt the thread and signal action can be invoked by the thread,
sigwait should return with errno set to EINTR.
Also save and restore thread internal state(timeout and interrupted)
around signal handler invoking.
Rationale:
SIGURG is configured by ftpd to interrupt system calls, which is useful
during data transfers. However, SIGURG could interrupt I/O on the
control channel as well, which was mistaken for the end of the session.
A practical example could be aborting the download of a tiny file,
when the abort sequence reached ftpd after ftpd had passed the file
data to the system and returned to its command loop.
Reported by: ceri
MFC after: 1 week
- always check the return value from getc(3) for EOF;
- if the attempt to read the TELNET command byte has
returned EOF, exit from the loop instead of using
the EOF value as a normal character.
MFC after: 1 week
extracted from received frames, both in the IFCAP_VLAN_HWTAGGING case
and not. (Some drivers may already do this masking internally, but
doing it here doesn't hurt and insures consistency.)
- In vlan_ioctl(), don't let the user set a VLAN ID value with anything
besides the VLID bits set, otherwise we will have trouble matching
an interface in vlan_input() later.
PR: kern/46405
ACPI nodes with the plug and play ID's defined for a "Generic ISA Bus
Device" as defined in section 10.7 of the ACPI 2.0 specification. This
gives machines like the Libretto that contain a fake ISA bus that is not
connected via a PCI-ISA bridge an ISA bus for ISA devices to attach to.
Tested by: markm
than the shortcircuited version I had been using, which only worked
properly on i386 & amd64.
Also, change an autoscale constant to account for the more correct
kmem_map size.
Problem noticed by: mux
- Factor out code common to all ISA bridge drivers attach methods into a
isab_attach() function.
- Rename the PCI-ISA bridge driver's attach function to pci_isab_attach()
and have it call isab_attach().
for targets that have been unsupported since April:
- upgrade
- aout-to-elf
- aout-to-elf-build
- aout-to-elf-install
- move-aout-libs
Approved by: imp
spaces and comma-separated lists of arguments;
* reword the description of address specifications, to include
previous and current changes for address sets and lists;
* document the new '-n' flag.
* update the section on differences between ipfw1 and ipfw2
(this is becoming boring!)
MFC after: 3 days
* Make the addr-set size optional (defaults to /24)
You can now write 1.2.3.0/24{56-80} or 1.2.3.0{56-80}
Also make the parser more strict.
* Support a new format for the list of addresses:
1.2.3.4,5.6.7.8/30,9.10.11.12/22,12.12.12.13, ...
which exploits the new capabilities of O_IP_SRC_MASK/O_IP_DST_MASK
* Allow spaces after commas to make lists of addresses more readable.
1.2.3.4, 5.6.7.8/30, 9.10.11.12/22, 12.12.12.13, ...
* ipfw will now accept full commands as a single argument and strip
extra leading/trailing whitespace as below:
ipfw "-q add allow ip from 1.2.3.4 to 5.6.7.8, 9.10.11.23 "
This should help in moving the body of ipfw into a library
that user programs can invoke.
* Cleanup some comments and data structures.
* Do not print rule counters for dynamic rules with ipfw -d list
(PR 51182)
* Improve 'ipfw -h' output (PR 46785)
* Add a '-n' flag to test the syntax of commands without actually
calling [gs]etsockopt() (PR 44238)
* Support the '-n' flag also with the preprocessors;
Manpage commit to follow.
MFC after: 3 days
support matching a list of addr/mask pairs so one can write
more efficient rulesets which were not possible before e.g.
add 100 skipto 1000 not src-ip 10.0.0.0/8,127.0.0.1/8,192.168.0.0/16
The change is fully backward compatible.
ipfw2 and manpage commit to follow.
MFC after: 3 days
- Limit the total number of pipes so that we do not
exhaust all vm objects in the kernel map. When
this limit is reached, a ratelimited message will
be printed to the console.
- Put a soft limit on the amount of memory consumable
by pipes. Once the limit has been reached, all new
pipes will be limited to 4K in size, rather than the
default of 16K.
- Put a limit on the number of pages that may be used
for high speed page flipping in order to reduce the
amount of wired memory. Pipe writes that occur
while this limit is exceeded will fall back to
non-page flipping mode.
The above values are auto-tuned in subr_param.c and
are scaled to take into account both the size of
physical memory and the size of the kernel map.
These limits help to reduce the "kernel resources exhausted"
panics that could be caused by opening a large
number of pipes. (Pipes alone are no longer able
to exhaust all resources, but other kernel memory hogs
in league with pipes may still be able to do so.)
PR: 53627
Ideas / comments from: hsu, tjr, dillon@apollo.backplane.com
MFC after: 1 week
