md(4) to using M_WAITOK malloc calls.
M_NOWAITOK allocations may fail when enough memory could be freed, but not
immediately. E.g. SU UFS becomes quite unhappy when metadata write return
error, that would happen for failed malloc() call.
Reported and tested by: pho
MFC after: 1 week
table is present, then the acpi_ec(4) driver will allocate its resources
from nexus0 before the acpi0 device reserves resources for child devices.
Reviewed by: jkim
manual 1000BASE-T modes of DP83865 only work together with other National
Semiconductor PHYs.
- Spell 10BASE-T correctly
- Remove some redundant braces.
condition in proc_rwmem() and to (2) simplify the implementation of the
cxgb driver's vm_fault_hold_user_pages(). Specifically, in proc_rwmem()
the requested read or write could fail because the targeted page could be
reclaimed between the calls to vm_fault() and vm_page_hold().
In collaboration with: kib@
MFC after: 6 weeks
the original amd64 and i386 headers with stubs.
Rename (AMD64|I386)_BUS_SPACE_* to X86_BUS_SPACE_* everywhere.
Reviewed by: imp (previous version), jhb
Approved by: kib (mentor)
controller with Card Read Host Controller. These controllers are
multi-function devices and have the same ethernet core of
JMC250/JMC260. Starting from REVFM 5(chip full mask revision)
controllers have the following features.
o eFuse support
o PCD(Packet Completion Deferring)
o More advanced PHY power saving
Because these controllers started to use eFuse, station address
modified by driver is permanent as if it was written to EEPROM. If
you have to change station address please save your controller
default address to safe place before reprogramming it. There is no
way to restore factory default station address.
Many thanks to JMicron for continuing to support FreeBSD.
HW donated by: JMicron
a 2GHz channel with appropriate flags set to sc->config. Due to not zeroing
sc->config for auth/assoc those flags are still set while trying to connect
on a 5GHz channel.
MFC after: 3 days
Use pci_enable_busmaster instead of setting PCIM_CMD_BUSMASTEREN
directly. There's no need to set PCIM_CMD_MEMEN. The bit is set when a
SYS_RES_MEMORY resource is activated.
Remove redundant pci_* function calls from suspend/resume methods. The
bus driver already saves and restores the PCI configuration.
Write 1 byte instead of 4 when setting the HIFN_TRDY_TIMEOUT register.
It is only 1 byte according to the specification.
Reviewed by: jhb
Approved by: kib (mentor)
configuration registers directly.
Remove pci_enable_io calls where they are redundant. The PCI bus driver
will set the right bits when the corresponding bus resource is activated.
Remove redundant pci_* function calls from suspend/resume methods. The
bus driver already saves and restores the PCI configuration.
Reviewed by: jhb
Approved by: kib (mentor)
This is based on the patch submitted by Yuri Skripachov.
Overview of the changes:
- clarify double-use of some ACPI_BATT_STAT_* definitions
- clean up undefined/extended status bits returned by _BST
- warn about charging+discharging bits being set at the same time
PR: kern/124744
Submitted by: Yuri Skripachov <y.skripachov@gmail.com>
Tested by: Yuri Skripachov <y.skripachov@gmail.com>
MFC after: 2 weeks
allow the child atkbd device to reuse that IRQ resource instead of
reallocating the same IRQ from the parent bus inside the atkbd driver.
- Don't allocate a shared IRQ for the atkbd driver. For AT keyboard
devices on an ISA bus the IRQ is not shareable. Instead, the bus driver
should mark the IRQ shareable if the bus supports shared IRQs.
- Don't identify child devices until after the atkbdc device itself has
attached.
delete the IRQ resource from the psmcpnp device completely.
- Don't allocate the IRQ resource shared. It is not a shareable interrupt
on ISA. The bus driver can set RF_SHAREABLE if the IRQ is actually
shareable on a non-ISA bus.
- Avoid side-effect assignments in if statements when possible.
- Don't use ! to check for NULL pointers, explicitly check against NULL.
- Explicitly check error return values against 0.
- Don't use INTR_MPSAFE for interrupt handlers with only filters as it is
meaningless.
- Remove unneeded function casts.
function always returned the nominal frequency instead of current frequency
because we use RDTSC instruction to calculate difference in CPU ticks, which
is supposedly constant for the case. Now we support cpu_get_nominal_mhz()
for the case, instead. Note it should be just enough for most usage cases
because cpu_est_clockrate() is often times abused to find maximum frequency
of the processor.
There is no need to use an atomic operation at structure initialization
time.
Note that the file changed is not connected to the build at this time.
Reviewed by: jhb (general issue)
Approved by: np
MFC after: 2 weeks
Prior to this change, the addressing method wasn't getting set, and
so the LUN field could be set incorrectly in some instances.
This fix should allow for LUN numbers up to 16777215 (and return an error
for anything larger, which wouldn't fit into the flat addressing model).
Submitted by: scottl (in part)
This bug manifested itself after repeated device arrivals and
departures. The root of the problem was that the last entry in the
reply array wasn't initialized/allocated. So every time we got
around to that event, we had a bogus address.
There were a couple more problems with the code that are also fixed:
- The reply mechanism was being treated as sequential (indexed by
sc->replycurindex) even though the spec says that the driver
should use the ReplyFrameAddress field of the post queue
descriptor to figure out where the reply is. There is no
guarantee that the reply descriptors will be used in sequential
order.
- The second word of the reply post queue descriptor wasn't being
checked in mps_intr_locked() to make sure that it wasn't
0xffffffff. So the driver could potentially come across a
partially DMAed descriptor.
- The number of replies allocated was one less than the actual
size of the queue. Instead, it was the size of the number of
replies that can be used at one time. (Which is one less than
the size of the queue.)
mps.c: When initializing the entries in the reply free
queue, make sure we initialize the full number that
we tell the chip we have (sc->fqdepth), not the
number that can be used at any one time (sc->num_replies).
When allocating replies, make sure we allocate the
number of replies that we've told the chip exist,
not just the number that can be used simultaneously.
Use the ReplyFrameAddress field of the post queue
descriptor to figure out which reply is being
referenced. This is what the spec says to do, and
the spec doesn't guarantee that the replies will be
used in order.
Put a check in to verify that the reply address passed
back from the card is valid. (Panic if it isn't, we'll
panic when we try to deference the reply pointer in any
case.)
In mps_intr_locked(), verify that the second word of the
post queue descriptor is not 0xffffffff in addition to
verifying that the unused flag is not set, so we can
make sure we didn't get a partially DMAed descriptor.
Remove references to sc->replycurindex, it isn't needed
now.
mpsvar.h: Remove replycurindex from the softc, it isn't needed now.
Reviewed by: scottl
functionality is the same, a difference is that the DS1775 has a better
precision than the LM75. But we do not use it in our setup. Make the
LM75 work the same as the DS1775.
Fix a typo in device_set_desc.
Tested by: Paul Mather <paul at gromit dlib vt edu>
Approved by: nwhitehorn (mentor)
pointer where data is to be returned by ibask() (currently unimplemented),
while __retval holds the value returned by the libgpib ibfoo() functions.
The confusion resulted in the ibfoo() functions returning an uninitialized
value except in situations where the GPIB activity has been terminated
abnormally.
MFC after: 3 days
re-arming the watchdog timeout.
Sponsored by: Sandvine Incorporated
Submitted by: Mark Johnston <mjohnston at sandvine dot com>
Reviewed by: des
MFC after: 10 days
AX88772 controllers. ASIX added a new feature for AX88178/AX88772
controllers which allows combining multiple TX frames into a single
big frame. This was to overcome one of USB limitation where it
can't generate more than 8k interrupts/sec which in turn means USB
ethernet controllers can not send more than 8k packets per second.
Using ASIX's feature greatly enhanced TX performance(more than 3~4
times) compared to 7.x driver. However it seems r184610 removed
boundary checking for buffered frames which in turn caused
instability issues under certain conditions. In addition, using
ASIX's feature triggered another issue which made USB controller
hang under certain conditions. Restarting ethernet controller
didn't help under this hang condition and unplugging and replugging
the controller was the only solution. I believe there is a silicon
bug in TX frame combining feature on AX88178/AX88772 controllers.
To address these issues, reintroduce the boundary checking for both
AX88178 and AX88772 after copying a frame to USB buffer and do not
use ASIX's multiple frame combining feature. Instead, use USB
controller's multi-frame transmit capability to enhance TX
performance as suggested by Hans[1].
This should fix a long standing axe(4) instability issues reported
on AX88772 and AX88178 controllers. While I'm here remove
unnecessary TX frame length check since upper stack always
guarantee the size of a frame to be less than MCLBYTES.
Special thanks to Derrick Brashear who tried numerous patches
during last 4 months and waited real fix with patience. Without
this enthusiastic support, patience and H/W donation I couldn't fix
it since I was not able to trigger the issue on my box.
Suggested by: hselasky [1]
Tested by: Derrick Brashear (shadow <> gmail dot com>
H/W donated by: Derrick Brashear (shadow <> gmail dot com>
PR: usb/140883
