all pertinent statatistics for the subsystem. These structures are
sometimes "borrowed" by kernel modules that require a place to store
statistics for similar events.
Add KPI accessor functions for statistics structures referenced by kernel
modules so that they no longer encode certain specifics of how the data
structures are named and stored. This change is intended to make it
easier to move to per-CPU network stats following 8.0-RELEASE.
The following modules are affected by this change:
if_bridge
if_cxgb
if_gif
ip_mroute
ipdivert
pf
In practice, most of these statistics consumers should, in fact, maintain
their own statistics data structures rather than borrowing structures
from the base network stack. However, that change is too agressive for
this point in the release cycle.
Reviewed by: bz
Approved by: re (kib)
The newbus lock is responsible for protecting newbus internIal structures,
device states and devclass flags. It is necessary to hold it when all
such datas are accessed. For the other operations, softc locking should
ensure enough protection to avoid races.
Newbus lock is automatically held when virtual operations on the device
and bus are invoked when loading the driver or when the suspend/resume
take place. For other 'spourious' operations trying to access/modify
the newbus topology, newbus lock needs to be automatically acquired and
dropped.
For the moment Giant is also acquired in some key point (modules subsystem)
in order to avoid problems before the 8.0 release as module handlers could
make assumptions about it. This Giant locking should go just after
the release happens.
Please keep in mind that the public interface can be expanded in order
to provide more support, if there are really necessities at some point
and also some bugs could arise as long as the patch needs a bit of
further testing.
Bump __FreeBSD_version in order to reflect the newbus lock introduction.
Reviewed by: ed, hps, jhb, imp, mav, scottl
No answer by: ariff, thompsa, yongari
Tested by: pho,
G. Trematerra <giovanni dot trematerra at gmail dot com>,
Brandon Gooch <jamesbrandongooch at gmail dot com>
Sponsored by: Yahoo! Incorporated
Approved by: re (ksmith)
vnet.h, we now use jails (rather than vimages) as the abstraction
for virtualization management, and what remained was specific to
virtual network stacks. Minor cleanups are done in the process,
and comments updated to reflect these changes.
Reviewed by: bz
Approved by: re (vimage blanket)
firmware loading bugs.
Target mode support has received some serious attention to make it
more usable and stable.
Some backward compatible additions to CAM have been made that make
target mode async events easier to deal with have also been put
into place.
Further refinement and better support for NP-IV (N-port Virtualization)
is now in place.
Code for release prior to RELENG_7 has been stripped away for code clarity.
Sponsored by: Copan Systems
Reviewed by: scottl, ken, jung-uk kim
Approved by: re
USB core:
- add support for defragging of written device data.
- improve handling of alternate settings in device side mode.
- correct return value from usbd_get_no_alts() function.
- reported by: HPS
- P4 ID: 166156, 166168
- report USB device release information to devd and pnpinfo.
- reported by: MIHIRA Sanpei Yoshiro
- P4 ID: 166221
Submitted by: hps
Approved by: re
See PR description for more info. Patch is
implemented differently than suggested, but
having the same result.
PR: usb/137188
Submitted by: hps
Approved by: re
- add support for defragging of written device data.
- improve handling of alternate settings in device side mode.
- correct return value from usbd_get_no_alts() function.
- reported by: HPS
- P4 ID: 166156, 166168
- report USB device release information to devd and pnpinfo.
- reported by: MIHIRA Sanpei Yoshiro
- P4 ID: 166221
Submitted by: hps
Approved by: re
- Add minimum polling support to drive UMASS
and UKBD in case of panic.
- Add extra check to ukbd probe to fix problem about
mouse devices attaching like keyboards.
- P4 ID: 166148
Submitted by: hps
Approved by: re
- add support for setting the UMS polling rate through -F option
passed to moused.
- requested by Alexander Best
- P4 ID: 166075
PR: usb/125264
Submitted by: hps
Approved by: re
requesting IDENTIFY from slave device first. This order is important
for proper cable type detection by master device.
PR: kern/136438
Approved by: re (kib)
- When a vlan event occurs a check was not made that
the event was actually for the interface, thus resulting
in a panic. All three drivers have this vulnerability. Add
a check for this condition.
- Secondly, there was a duplicate buf_ring free in the em
driver resulting in a panic on unload. Remove.
Approved by: re
part that is made up of 8K banks rather than 4K, if these
systems are using bank 1 then the last change in this code
breaks the bank read, resulting in an invalid checksum of
the eeprom during driver load. This change fixes this.
Approved by: re
if input-device is unavailable. The Xserve G5 defaults to using
screen/keyboard for output-device/input-device even if these are not
installed, and then falls back to serial ports at boot time.
Reviewed by: marcel
Hardware from: grehan
Approved by: re (kib)
loader, because it uses a reserved suffix (_type). Fix
this by removing the "_" and renaming the tunable to
hw.mxge.rss_hashtype. The old (rss_hash_type) tunable is
still fetched, in case people load the driver via scripts.
When both are present in the kernel environment,
the new value (hw.mxge.rss_hashtype) overrides the old
value.
Approved by: re (kib)
actually specify valid bases that should be treated just as normal.
The PCI specifications have no indication that 0 would be a magic value
indicating a disabled BAR as commonly used on at least amd64 and i386
but not sparc64. It's unclear what to do in pci_delete_resource()
instead of writing 0 to a BAR though as there's no (other) way do
disable individual BARs so its decoding is left enabled in case of
__PCI_BAR_ZERO_VALID for now.
Approved by: re (kib), jhb
MFC after: 1 week
Driver supports Serial ATA and ATAPI devices, Port Multipliers
(including FIS-based switching), hardware command queues (31 command
per port) and Native Command Queuing. This is probably the second on
popularity, after AHCI, type of SATA2 controllers, that benefits from
using CAM, because of hardware command queuing support.
Approved by: re (kib)
nagged again via PR. Thank Paul for his persistence and contributions.
PR: 136895
Submitted by: Paul B. Mahol <onemda@gmail.com>
Reviewed by: sam (timeout, 10 days), weongyo (timeout, 10 days), me
Approved by: re (Kostik Belousov <kostikbel@gmail.com>)
(DPCPU), as suggested by Peter Wemm, and implement a new per-virtual
network stack memory allocator. Modify vnet to use the allocator
instead of monolithic global container structures (vinet, ...). This
change solves many binary compatibility problems associated with
VIMAGE, and restores ELF symbols for virtualized global variables.
Each virtualized global variable exists as a "reference copy", and also
once per virtual network stack. Virtualized global variables are
tagged at compile-time, placing the in a special linker set, which is
loaded into a contiguous region of kernel memory. Virtualized global
variables in the base kernel are linked as normal, but those in modules
are copied and relocated to a reserved portion of the kernel's vnet
region with the help of a the kernel linker.
Virtualized global variables exist in per-vnet memory set up when the
network stack instance is created, and are initialized statically from
the reference copy. Run-time access occurs via an accessor macro, which
converts from the current vnet and requested symbol to a per-vnet
address. When "options VIMAGE" is not compiled into the kernel, normal
global ELF symbols will be used instead and indirection is avoided.
This change restores static initialization for network stack global
variables, restores support for non-global symbols and types, eliminates
the need for many subsystem constructors, eliminates large per-subsystem
structures that caused many binary compatibility issues both for
monitoring applications (netstat) and kernel modules, removes the
per-function INIT_VNET_*() macros throughout the stack, eliminates the
need for vnet_symmap ksym(2) munging, and eliminates duplicate
definitions of virtualized globals under VIMAGE_GLOBALS.
Bump __FreeBSD_version and update UPDATING.
Portions submitted by: bz
Reviewed by: bz, zec
Discussed with: gnn, jamie, jeff, jhb, julian, sam
Suggested by: peter
Approved by: re (kensmith)
This dramatically pushing 99.9% interpolations and quantizations
error _below_ -180dB on 32bit dynamic range, resulting extremely
high quality conversion.
- Use BSPLINE interpolator for filter oversampling factor greater or
equal than 64 (log2 6).
Approved by: re (kib)
check missed this because cxgb's TOM is currently commented out of the build
system.
Submitted by: Navdeep Parhar <np at FreeBSD dot org>
Approved by: re (kensmith), kensmith (mentor temporarily unavailable)
the TCP syncache. This returns struct tcpopt to being private within the TCP
implementation, thus allowing it to be modified without ABI concerns.
The patch breaks the ABI. Bump __FreeBSD_version to 800103 accordingly. The cxgb
driver is the only TOE consumer affected by this change, and needs to be
recompiled along with the kernel.
Suggested by: rwatson
Reviewed by: rwatson, kmacy
Approved by: re (kensmith), kensmith (mentor temporarily unavailable)
USB CORE: busdma improvement
For single segment allocations the boundary field
of the BUSDMA tag should be zero. Currently all
single segment allocations are less than or equal
to 4096 bytes, so the limit does not kick in. If
any single segment USB allocations would be greater
than 4K, then it would be a problem.
Approved by: re (kensmith)
Obtained from: HPS
/boot/kernel/hptrr.ko
/etc/mail/*.cf
/lib/libcrypto.so.5
/usr/bin/ntpq
/usr/sbin/amd
/usr/sbin/iasl
/usr/sbin/ntpd
/usr/sbin/ntpdate
/usr/sbin/ntpdc
There does not appear to be any purpose to having these timestamps, and
they have the irritating consequence that the aforementioned files will
be different every time they are rebuilt.
After this commit, the only remaining build timestamps are in the kernel,
the boot loaders, /usr/include/osreldate.h (the year in the copyright
notice), and lib*.a (the timestamps on all of the included .o files).
Reviewed by: scottl (hptrr), gshapiro (sendmail), simon (openssl),
roberto (ntp), jkim (acpica)
Approved by: re (kib)
net80211 wireless stack. This work is based on the March 2009 D3.0 draft
standard. This standard is expected to become final next year.
This includes two main net80211 modules, ieee80211_mesh.c
which deals with peer link management, link metric calculation,
routing table control and mesh configuration and ieee80211_hwmp.c
which deals with the actually routing process on the mesh network.
HWMP is the mandatory routing protocol on by the mesh standard, but
others, such as RA-OLSR, can be implemented.
Authentication and encryption are not implemented.
There are several scripts under tools/tools/net80211/scripts that can be
used to test different mesh network topologies and they also teach you
how to setup a mesh vap (for the impatient: ifconfig wlan0 create
wlandev ... wlanmode mesh).
A new build option is available: IEEE80211_SUPPORT_MESH and it's enabled
by default on GENERIC kernels for i386, amd64, sparc64 and pc98.
Drivers that support mesh networks right now are: ath, ral and mwl.
More information at: http://wiki.freebsd.org/WifiMesh
Please note that this work is experimental. Also, please note that
bridging a mesh vap with another network interface is not yet supported.
Many thanks to the FreeBSD Foundation for sponsoring this project and to
Sam Leffler for his support.
Also, I would like to thank Gateworks Corporation for sending me a
Cambria board which was used during the development of this project.
Reviewed by: sam
Approved by: re (kensmith)
Obtained from: projects/mesh11s
The default (64K) is too pessimistic for "new comm" hardware.
Also, this is bad because multiple controllers get limited by
the global tunable.
Reviewed by: scottl
Approved by: re (kensmith)
modularize it so that new transports can be created.
Add a transport for SATA
Add a periph+protocol layer for ATA
Add a driver for AHCI-compliant hardware.
Add a maxio field to CAM so that drivers can advertise their max
I/O capability. Modify various drivers so that they are insulated
from the value of MAXPHYS.
The new ATA/SATA code supports AHCI-compliant hardware, and will override
the classic ATA driver if it is loaded as a module at boot time or compiled
into the kernel. The stack now support NCQ (tagged queueing) for increased
performance on modern SATA drives. It also supports port multipliers.
ATA drives are accessed via 'ada' device nodes. ATAPI drives are
accessed via 'cd' device nodes. They can all be enumerated and manipulated
via camcontrol, just like SCSI drives. SCSI commands are not translated to
their ATA equivalents; ATA native commands are used throughout the entire
stack, including camcontrol. See the camcontrol manpage for further
details. Testing this code may require that you update your fstab, and
possibly modify your BIOS to enable AHCI functionality, if available.
This code is very experimental at the moment. The userland ABI/API has
changed, so applications will need to be recompiled. It may change
further in the near future. The 'ada' device name may also change as
more infrastructure is completed in this project. The goal is to
eventually put all CAM busses and devices until newbus, allowing for
interesting topology and management options.
Few functional changes will be seen with existing SCSI/SAS/FC drivers,
though the userland ABI has still changed. In the future, transports
specific modules for SAS and FC may appear in order to better support
the topologies and capabilities of these technologies.
The modularization of CAM and the addition of the ATA/SATA modules is
meant to break CAM out of the mold of being specific to SCSI, letting it
grow to be a framework for arbitrary transports and protocols. It also
allows drivers to be written to support discrete hardware without
jeopardizing the stability of non-related hardware. While only an AHCI
driver is provided now, a Silicon Image driver is also in the works.
Drivers for ICH1-4, ICH5-6, PIIX, classic IDE, and any other hardware
is possible and encouraged. Help with new transports is also encouraged.
Submitted by: scottl, mav
Approved by: re
MAXPHYS. Current ataahci driver memory allocation scheme includes only
64 items in DMA S/G table, and so not guarantied to support transactions
with more then 252K data.
Approved by: re (kensmith)
MFC after: 2 weeks
is invalid because the ioctl happens without prior open. The ioctl
got introduced to provide backward compatibility for extended
partitions, but it ended up not being used because it didn't work
as expected. Since there are no consumers of the ioctl and the
implementation is broken, the best fix is to remove the code
entirely.
Spotted by: phk
Approved by: re (kensmith)
This cause dramatic effect in overall precision and conversion quality
by pushing down most aliasing artifacts around -180 dB.
Spectrogram analysis/comparison:
http://people.freebsd.org/~ariff/z_comparison/z_28vs30/
- Guard against possible 64bit overflow during accumulation process by
slightly normalize and saturate sample and coefficient multiplication,
possible during extreme 32bit downsampling (eg. 380KHz -> 8KHz) with
custom preset that require more than ~7000 taps filter (which is
overkill).
- Add knobs through FEEDER_RATE_PRESETS to set dynamic range of filter
coefficients/accumulator and prefered polynomial interpolator:
COEFFICIENT_BIT:X
(where 1 <= X <= 30, default: 30)
ACCUMULATOR_BIT:X
(where 32 <= X <=64, default: 58)
INTERPOLATOR:I
(where I = ZOH, LINEAR, QUADRATIC, HERMITE, BSPLINE,
OPT32X, OPT16X, OPT8X, OPT4X, OPT2X)
Approved by: re (kib)
o add a new facility for components to register send+recv handlers
o ieee80211_send_action and ieee80211_recv_action now use the registered
handlers to dispatch operations
o rev ieee80211_send_action api to enable passing arbitrary data
o rev ieee80211_recv_action api to pass the 802.11 frame header as it may
be difficult to locate
o update existing IEEE80211_ACTION_CAT_BA and IEEE80211_ACTION_CAT_HT handling
o update mwl for api rev
Reviewed by: rpaulo
Approved by: re (kensmith)
- sysctl dev.acpi_hp.0.verbose to toggle debug output
- A modification so this can deal with different array lengths
when reading the CMI BIOS - now it works ok on HP Compaq nx7300
as well.
- Change behaviour to query only max_instance-1 CMI BIOS instances,
because all HPs seen so far are broken in that respect
(or there is a fundamental misunderstanding on my side, possible
as well). This way a disturbing ACPI Error Field exceeds Buffer
message is avoided.
- New bit to set on dev.acpi_hp.0.cmi_detail (0x8) to
also query the highest guid instance of CMI bios
acpi_hp.4:
- Document dev.acpi_hp.0.verbose sysctl in man page
- Document new bit for dev.acpi_hp.0.cmi_detail
- Add a section to manpage about hardware that has been reported
to work ok
Submitted by: Michael Gmelin <freebsdusb at bindone.de>
Approved by: re (kib)
MFC after: 2 weeks
via cpuctl(4) driver. Two new CPUCTL_MSRSBIT and CPUCTL_MSRCBIT ioctl(2)
calls treat the data field of the argument struct passed as a mask
and set/clear bits of the MSR register according to the mask value.
- Allow user to perform atomic bitwise AND and OR operaions on MSR registers
via cpucontrol(8) utility. Two new operations ("&=" and "|=") have been
added. The first one applies bitwise AND operaion between the current
contents of the MSR register and the mask, and the second performs bitwise
OR. The argument can be optionally prefixed with "~" inversion operator.
This allows one to mimic the "clear bit" behavior by using the command
like this:
cpucontrol -m 0x10&=~0x02 # clear the second bit of TSC MSR
Inversion operator support in all modes (assignment, OR, AND).
Approved by: re (kib)
MFC after: 1 month
- Document different semantics for ACPI_WMI_PROVIDES_GUID_STRING_METHOD
acpi_wmi.c:
- Modify acpi_wmi_provides_guid_string_method to return absolut number of
instances known for the given GUID.
acpi_hp.c:
- sysctl dev.acpi_hp.0.verbose to toggle debug output
- A modification so this can deal with different array lengths
when reading the CMI BIOS - now it works ok on HP Compaq nx7300
as well.
- Change behaviour to query only max_instance-1 CMI BIOS instances,
because all HPs seen so far are broken in that respect
(or there is a fundamental misunderstanding on my side, possible
as well). This way a disturbing ACPI Error Field exceeds Buffer
message is avoided.
- New bit to set on dev.acpi_hp.0.cmi_detail (0x8) to
also query the highest guid instance of CMI bios
acpi_hp.4:
- Document dev.acpi_hp.0.verbose sysctl in man page
- Document new bit for dev.acpi_hp.0.cmi_detail
- Add a section to manpage about hardware that has been reported
to work ok
Submitted by: Michael Gmelin, freebsdusb at bindone.de
Approved by: re (kib)
MFC after: 2 weeks
o new tx ack queue (not used right now)
o proxy-sta related changes (no proxy sta in driver)
o explicit dwds ena/dis (needed only with proxy sta)
o cleanup BA policy handling
o new ampdu aggressive mode support
o CFEnd use now controllable
Approved by: re (kensmith)
result was when the RX index wrapped it was converted into some
sort of gibberish and written into the RDT register, effectively
killing the RX side of the thing :)
Approved by: re
under certain environments. However give users chance to override
it when he/she surely knows his/her hardware works with Rx checksum
offload.
Reported by: Ulrich Spoerlein ( uqs <> spoerlein dot net )
MFC after: 1 week
Approved by: re (kensmith)
Giant was only used here to lock down a bit mask of allocated unit
numbers. Change the code to use its own mutex.
Reviewed by: hselasky
Approved by: re (kib)
inbound data waiting on a filedescriptor, such as a pipe or a socket,
for instance by using select(2), poll(2), kqueue(2), ioctl(FIONREAD)
etc.
But we have no way of finding out if written data have yet to be
disposed of, for instance, transmitted (and ack'ed!) to some remote
host, or read by the applicantion at the far end of the pipe.
The closest we get, is calling shutdown(2) on a TCP socket in
non-blocking mode, but this has the undesirable sideeffect of
preventing future communication.
Add a complement to FIONREAD, called FIONWRITE, which returns the
number of bytes not yet properly disposed of. Implement it for
all sockets.
Background:
A HTTP server will want to time out connections, if no new request
arrives within a certain period after the last transmitted response
has actually been sent (and ack'ed).
For a busy HTTP server, this timeout can be subsecond duration.
In order to signal to a load-balancer that the connection is truly
dead, TCP_RST will be the preferred method, as this avoids the need
for a RTT delay for FIN handshaking, with a client which, surprisingly
often, no longer at the remote IP number.
If a slow, distant client is being served a response which is big
enough to fill the window, but small enough to fit in the socket
buffer, the write(2) call will return immediately.
If the session timeout is armed at that time, all bytes in the
response may not have been transmitted by the time it fires.
FIONWRITE allows the timeout to check that no data is outstanding
on the connection, before it TCP_RST's it.
Input & Idea from: rwatson
Approved by: re (kib)
- Add support for devices that handle set and clear stall in hardware.
- Add missing get timestamp function
- Add more xfer flags
Submitted by: Hans Petter Selasky
Approved by: re (kib)
o add HAL_CAP_BSSIDMATCH to identify parts that have the support for
disabling bssid match
o honor capability for set/get rx filter
o use HAL_CAP_BSSIDMATCH in driver to decide whether to use the bssid
match disable or fall back to promisc mode
Reviewed by: rpaulo
Approved by: re (rwatson)
the value written to MSR register was always 0 regardless of value passed
by user.
- Use proper data pointer when performing AMD microcode update. Previously,
the pointer to user-space data has been provided instead, which is totally
incorrect.
Approved by: re (kib)
MFC after: 1 week
IF_ADDR_UNLOCK() across network device drivers when accessing the
per-interface multicast address list, if_multiaddrs. This will
allow us to change the locking strategy without affecting our driver
programming interface or binary interface.
For two wireless drivers, remove unnecessary locking, since they
don't actually access the multicast address list.
Approved by: re (kib)
MFC after: 6 weeks
for the pmclog.
Reported by: Ryan Stone <rstone at sandvine dot com>
Tested by: Ryan Stone <rstone at sandvine dot com>
Sponsored by: Sandvine Incorporated
Note that this does not actually enable full-range i/o requests for
64 architectures, and is done now to update KBI only.
Tested by: pho
Reviewed by: jhb, bde (as part of the review of the bigger patch)
The Intel 2d driver calls modeset before reinstalling the handler on
a vt switch. This means that vblank status ends up getting cleared
after it has been setup. Restore saved values for the pipestat registers
rather than just wiping them out.
MFC after: 3 days
Use the vbl_lock when maniputlating the refcount. Eventually I want to
convert this to use our internal refcount code. Continue to use atomic
ops for manipulating vblank count since we access it often just for
reading.
MFC after: 3 days
- build ifmedia list based on phy->caps, not string comparisons.
- rebuild media list when a transceiver change is detected.
- return EOPNOTSUPP instead of ENXIO in cxgb_media_status.
Approved by: gnn (mentor)
MFC after: 2 weeks.
I tried re-ordering ether_ifdetach(), but this created a new race
where sometimes, when under heavy receive load (>1Mpps) and running
tcpdump, the machine would panic. At panic, the ithread was still in
the original (not dead) if_input() path, and was accessing stale BPF
data structs. By using a dying flag, I can close the interface prior
to if_detach() to be certain the interface cannot send packets up in
the middle of ether_ifdetach.
handling in order to reduce interrupt overhead which results in
better performance.
- Call ether_ifdetach(9) before stopping the controller and the
callouts detach in order to prevent active BPF listeners to clear
promiscuous mode which may lead to the tick callout being restarted
which will trigger a panic once it's actually gone.
- Add explicit IFF_DRV_RUNNING checking in order to prevent extra
link up/down events when using dhclient(8).
- Use the correct macro for deciding whether 2/3 of the available TX
descriptors are used.
- Wrap the RX fault printing in #ifdef CAS_DEBUG in order to not
unnecessarily frighten users and as debugging was the actual
intention. Real errors caused by these faults still will be
accumulated as input errors. It might be a good idea to later on
add driver specific counters for the faults though.
Submitted by: yongari (original patch)
longer useful for the FD_STYPE and FD_SOPTS ioctls to insist on being
issued on a writable file descriptor. Otherwise, there's no longer a
chance to set the drive type or options when a read-only medium is
present in the drive, as there is no way to obtain a writable fd then.
call ether_ifdetach(9) before stopping the controller and the
callouts. The consensus is that the latter is now safe to do and
should also solve the problem of active BPF listeners clearing
promiscuous mode can result in the tick callout being restarted
which in turn will trigger a panic once it's actually gone.
- honor parent DMA tag limitations, as man page requires,
- allow data buffer to be allocated within full 64bit address range, when
support is announced by hardware,
- add quirk, disabling 64bit addresses for broken chips, use it for MCP78.
This removes unnecessary PCI #includes dependency for systems with ATA
controllers living at non-PCI buses.
Submitted by: Piotr Ziecik
Obtained from: Semihalf
rlimit RLIMIT_SWAP that limits the amount of swap that may be reserved
for the uid.
The accounting information (charge) is associated with either map entry,
or vm object backing the entry, assuming the object is the first one
in the shadow chain and entry does not require COW. Charge is moved
from entry to object on allocation of the object, e.g. during the mmap,
assuming the object is allocated, or on the first page fault on the
entry. It moves back to the entry on forks due to COW setup.
The per-entry granularity of accounting makes the charge process fair
for processes that change uid during lifetime, and decrements charge
for proper uid when region is unmapped.
The interface of vm_pager_allocate(9) is extended by adding struct ucred *,
that is used to charge appropriate uid when allocation if performed by
kernel, e.g. md(4).
Several syscalls, among them is fork(2), may now return ENOMEM when
global or per-uid limits are enforced.
In collaboration with: pho
Reviewed by: alc
Approved by: re (kensmith)
the PHYs as some PHY drivers use it (but probably shouldn't). How
gem(4) has worked with brgphy(4) on powerpc without this so far is
unclear to me.
- Introduce a dying flag which is set during detach and checked in
gem_ioctl() in order to prevent active BPF listeners to clear
promiscuous mode which may lead to the tick callout being restarted
which will trigger a panic once it's actually gone.
- In gem_stop() reset rather than just disable the transmitter and
receiver in order to ensure we're not unloading DMA maps still in
use by the hardware. [1]
- The blanking time is specified in PCI clocks so we should use twice
the value when operating at 66MHz.
- Spell some 2 as ETHER_ALIGN and a 19 as GEM_STATUS_TX_COMPLETION_SHFT
to make the actual intentions clear.
- As we don't unload the peak attempts counter ignore its overflow
interrupts.
- Remove a stale setting of a variable to GEM_TD_INTERRUPT_ME which
isn't used afterwards.
- For optimum performance increment the TX kick register in multiples
of 4 if possible as suggested by the documentation.
- Partially revert r164931; drivers should only clear the watchdog
timer if all outstanding TX descriptors are done.
- Fix some debugging strings.
- Add a missing BUS_DMASYNC_POSTWRITE in gem_rint().
- As the error paths in the interrupt handler are generally unlikely
predict them as false.
- Add support for the SBus version of the GEM controller. [2]
- Add some lock assertions.
- Improve some comments.
- Fix some more or less cosmetic issues in the code of the PCI front-end.
- Change some softc members to be unsigned where more appropriate and
remove unused ones.
Approved by: re (kib)
Obtained from: NetBSD (partially) [2], OpenBSD [1]
MFC after: 2 weeks
- Support for 10G-PCIE*-8B*-C (dual-port CX4) NICs
- For dual-port NICs, f/w failover is now a few microsecs
instead of a few millisecs.
- On failover, f/w sends RARP broadcast to make the change
immediately known to the network
- Fixed a bug observed on IBM X3 architecture where
some spurious ecrc errors would be reported when OS enabled
ecrc support.
Sponsored by: Myricom Inc.
* Driver for ACPI HP extra functionations, which required
ACPI WMI driver.
Submitted by: Michael <freebsdusb at bindone.de>
Approved by: re
MFC after: 2 weeks
a pointer to an ifaddr matching the passed socket address, returns a
boolean indicating whether one was present. In the (near) future,
ifa_ifwithaddr() will return a referenced ifaddr rather than a raw
ifaddr pointer, and the new wrapper will allow callers that care only
about the boolean condition to avoid having to free that reference.
MFC after: 3 weeks
Note that I also added the usbdev to the list, because the 8813 version
is not yet known there. I might have twisted the sorting there but because
8813 comes before 8818, I added it before that (with _8813 to differentiate)
the item.
PR: 135628
Submitted by: Yoshikazu GOTO <goto at on-link dot jp>
Approved by: imp (mentor, implicit)
To detect which controller is ICH based one, add a new member
variable ich to struct fxp_ident and move the struct to
if_fxpvar.h. Since I've faked controller revision, don't allow
microcode loading for ICH based controllers.
With this change all ICH based controllers will have WOL and Rx
checksum offload capability.
PR: kern/135451
Tested by: Alexey Shuvaev ( shuvaev <> physik dot uni-wuerzburg dot de ),
pluknet ( pluknet <> gmail dot com ),
Gary Jennejohn ( gary.jennejohn <> freenet dot de )
not allow multicast filter programming when controller is busy to
send/receive frames. So it used to mark need_mcsetup bit and defer
multicast filter programming until controller becomes idle state.
To detect when the controller is idle fxp(4) relied on Tx
completion interrupt with NOP command and fxp_start_body and
fxp_intr_body had to see whether pending multicast filter
programming was requested. This resulted in very complex logic and
sometimes it did not work as expected.
Since the controller should be in idle state before any multicast
filter modifications I changed it to reinitialize the controller
whenever multicast filter programming is required. This is the same
way what OpenBSD and NetBSD does. Also I added IFF_DRV_RUNNING
check in ioctl handler so controller would be reinitialized only if
it is absolutely needed.
With this change I guess we can remove fxp(4) DELAY hack in ifioctl
for IPv6 case.
upper stack in fxp_start_body().
fxp(4) drops driver lock in Rx path so check the fxp(4) is still
running after reacquiring driver lock in Rx path. Also don't
invoke fxp_intr_body if fxp(4) is not running. With this change
there is no need to set suspend bit in device attach phase.
hardware reset in attach phase. Selective reset does not clear
configured parameters so I think full hardware reset is required.
To prevent PCI bus lock-up, do selective reset first which will get
off the controller from PCI bus and request software reset after
selective reset. Software reset will unmask interrupts so disable
it after the reset.
common mbuf dma tag for both Tx and Rx path but Rx buffer should
have single DMA segment and maximum buffer size of the segment
should be less than MCLBYTES.
fxp(4) also have to check Tx completion status which was updated by
DMA so we need BUS_DMASYNC_PREREAD and BUS_DMASYNC_POSTWRITE
synchronization in Tx path. Fix all misuse of bus_dmamap_sync(9) in
fxp(4). I guess this change shall fix occasional driver breakage in
PAE environments.
While I'm here add error messages of dma tag/buffer creation and
correct messages.
Intel agrees with my reading of the docs, make it so for all G4X chips.
The new register also has a 32 bit width as opposed to 24 bits. Fix
things up so that the counters roll over properly.
MFC after: 3 days
- remove mbuf iovec - useful, but adds too much complexity when isolated to
the driver
- remove driver private caching - insufficient benefit over UMA to justify
the added complexity and maintenance overhead
- remove separate logic for managing multiple transmit queues, with the
new drbr routines the control flow can be made to much more closely resemble
legacy drivers
- remove dedicated service threads, with per-cpu callouts one can get the same
benefit much more simply by registering a callout 1 tick in the future if there
are still buffered packets
- remove embedded mbuf usage - Jeffr's changes will (I hope) soon be integrated
greatly reducing the overhead of using kernel APIs for reference counting
clusters
- add hysteresis to descriptor coalescing logic
- add coalesce threshold sysctls to allow users to decide at run-time
between optimizing for forwarding / UDP or optimizing for TCP
- add once per second watchdog to effectively close the very rare races
occurring from coalescing
- incorporate Navdeep's changes to the initialization path required to
convert port and adapter locks back to ordinary mutexes (silencing BPF
LOR complaints)
- enable prefetches in get_packet and tx cleaning
Reviewed by: navdeep@
MFC after: 2 weeks
by if_free (w/o doing if_attach); move ifq_attach to if_alloc and
rename ifq_attach/detach to ifq_init/ifq_delete to better identify
their purpose
Reviewed by: jhb, kmacy
DP83065 Saturn Gigabit Ethernet controllers. These are the successors
of the Sun GEM controllers and still have a similar but extended transmit
logic. As such this driver is based on gem(4).
Thanks to marcel@ for providing a Sun Quad GigaSwift Ethernet UTP (QGE)
card which was vital for getting this driver to work on architectures
not using Open Firmware.
Approved by: re (kib)
MFC after: 2 weeks
FEEDER_RATE_PRESET "OVERSAMPLING_FACTOR:X .. .." where
X = log2(oversampling factor).
- Lower down default filter oversampling factor from 128
(log2 = 7) to 32 (log2 = 5), saving worth of 80 Kb.
The use of better polynomial interpolator will raise
its conversion quality/accuracy to match (or slightly
better) with previous settings.
- Bump driver version.
coefficients quality:
- Linear interpolator for oversampling factor larger and equal
than 4096 (log2 = 12).
- Quadratic interpolator for oversampling factor larger and equal
than 256 (log2 = 8).
Default oversampling factor (128 ~ log2 = 7) will use OPT32X, which
provides better accuracy.
Characters between 0x07 and 0x0d are now also mapped, which means we can
display almost 256 different characters. Also remap certain types of
dashes and quotes, which means we can finally read our manual pages
without red question marks in them.
Submitted by: Christoph Mallon
of the DP83861 and DP83891.
- Reset the PHY during attach so it's in a known state.
- Add a comment describing why we hardwire 10baseT support in
the BMSR.
- Always explicitly set IFM_HDX for half-duplex. [1]
Obtained from: OpenBSD [1]
MFC after: 2 weeks
Add a small Unicode-to-CP437 remapping table to at least demonstrate
that the terminal emulator is perfectly capable of handling UTF-8. This
will of course break if the user loads a different font map, but it at
least allows people to give it a try.
I can now see the box drawing in dialog(1) and the arrows in mutt(1)
correctly.
so that it isn't exposured unless needed. In particular this means
that it's easier to tune the memory layout based on board details.
While here, remove inclusion of <machine/intr.h> from mvreg.h. This
also contains exposure to SoC specifics in MI drivers, because NIRQ
depends on the SoC.
in symtab_get method symtab parameter is made constant as this reflects
actual intention and usage of the method
Reviewed by: imp, current@
Approved by: jhb (mentor)
- Preallocate some memory for ACPI tasks early enough. We cannot use
malloc(9) any more because spin mutex may be held here. The reserved
memory can be tuned via debug.acpi.max_tasks tunable or ACPI_MAX_TASKS
in kernel configuration. The default is 32 tasks.
- Implement a custom taskqueue_fast to wrap the new memory allocation.
This implementation is not the fastest in the world but we are being
conservative here.
