Unfortunately, the wrappers that are present in pts(4) don't have the
mechanics to allow pty(4) to be unloaded safely, so I'm forcing this kld
to return EBUSY. This also means we have to enable some extra code in
pts(4) unconditionally.
Proposed by: rwatson
I noticed several drivers in our tree don't actually care about parity
and framing, such as pts(4), snp(4) (and my partially finished console
driver). Instead of duplicating a lot of code, I think we'd better add a
utility function for those drivers to quickly process a buffer of input.
Also change pts(4) and snp(4) to use this function.
It is necessary to make sure cpi->transport is set for xpt_scan_bus() to
work properly.
Submitted by: Bernhard Schmidt (scb+freebsd-current <at> techwires
<dot> net)
Reviewed by: scottl
Approved by: re (kib)
Without this changeset there will be no way to prevent these NICs from
sending ARP, which is harmful in server farms that is configured as
"Direct Server Return" behind a load balancer.
A better fix would remove the whole hack completely but it would be
later than 8.0-RELEASE.
Reviewed by: jfv, yongari
Approved by: re (kib)
- usb_pc_cpu_invalidate() is called between [consecutive] reads from a device,
so a sequence of BUS_DMASYNC_POSTREAD and _PREREAD should be used. Note we
cannot use or'ed shorthand ( _POSTREAD | _PREREAD) for BUS_DMASYNC flags, as
the low level bus dma sync operation is implementation dependent and we
cannot assume the required order of operations to be guaranteed.
- usb_pc_cpu_flush() is called before writing to a device, so
BUS_DMASYNC_PREWRITE should be used.
Submitted by: Grzegorz Bernacki
Reviewed by: HPS, arm@, usb@ ML
Tested by: HPS, Mike Tancsa
Approved by: re (kib)
Obtained from: Semihalf
loop iteration as it can be updated by the card while we
process the RX ring forcing us to process RX descriptors
for which DMA synchronisation operation has not been
performed. This fixes the bug when bge(4) drops packets
under high load.
Discussed with: yongari, marius
Approved by: re (kib)
MFC after: 1 week
value instead of blindly resetting it to 0. However, it seems page
select bits of some 88E1116 PHY is initialized to invalid one such
that restoring page select bits after programming broke MII
register access. The correct solution would be reset page select
bits to 0 in PHY attach stage but it would require more testing.
Since we're in BETA stage such a change would be dangerous so just
back it out.
This change should fix nfe(4) breakage on NVIDIA MCP55.
Reported by: Ryan Rogers < webmaster <> doghouserepair dot com >
Sam Fourman Jr. < sfourman <> gmail dot com >
Tested by: Ryan Rogers < webmaster <> doghouserepair dot com >
Sam Fourman Jr. < sfourman <> gmail dot com >
Approved by: re (kib)
cosmetic change to reduce cruft in the proc table.
Also change the idle wait message to `-` like how taskqueues are.
Reviewed by: julian
Approved by: re (kib)
- Provide lapic_disable_pmc(), lapic_enable_pmc(), and lapic_reenable_pmc()
routines in the local APIC code that the hwpmc(4) driver can use to
manage the local APIC PMC interrupt vector.
- Do not enable the local APIC PMC interrupt vector by default when
HWPMC_HOOKS is enabled. Instead, the hwpmc(4) driver explicitly
enables the interrupt when it is succesfully initialized and disables
the interrupt when it is unloaded. This avoids enabling the interrupt
on unsupported CPUs which may result in spurious NMIs.
Reported by: rnoland
Reviewed by: jkoshy
Approved by: re (kib)
MFC after: 2 weeks
controllers. Controller, array, and drive status can be checked, basic
attributes can be changed, and arrays and spares can be created and deleted.
Controller firmware can also be flashed.
This does not replace MegaCLI, found in ports, as that is officially sanctioned
and supported by LSI and includes vastly more functionality. However, mfiutil
is open source and guaranteed to provide basic functionality, which can be
especially useful if you have a problem and can't get MegaCLI to work.
Approved by: re
Obtained from: Yahoo! Inc.
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)
