proper solution which is to not use the TERMINATE pointer, but rather
link to a halted TD. The initial fix was due to a misunderstanding
about how the EHCI hardware works. Thanks to Alan Stern for clearing
this up. This patch can increase mass storage read performance
significantly when the IRQ rate is less than 8000 IRQ/s.
Approved by: thompsa (mentor)
header parser uses m_pullup(9) to get access to mbuf chain.
m_pullup(9) can allocate new mbuf chain and free old one if the
space left in the mbuf chain is not enough to hold requested
contiguous bytes. Previously drivers can use stale ip/tcp header
pointer if m_pullup(9) returned new mbuf chain.
Reported by: Andrew Boyer (aboyer <> averesystems dot com)
MFC after: 10 days
port such that reading station address from second port always
returned 0xFF:0xFF:0xFF:0xFF:0xFF:0xFF Unfortunately it seems there
is no easy way to know whether SROM is shared or not. Workaround
the issue by traversing dc(4) device list and see whether we're
using second port and use station address of controller 0 as base
station address of second port.
PR: kern/79262
MFC after: 2 weeks
auto polling such that it made all controllers obtain link status
information from the state of the LNKRDY input signal. Broadcom
recommends disabling auto polling such that driver should rely on
PHY interrupts for link status change indications. Unfortunately it
seems some controllers(BCM5703, BCM5704 and BCM5705) have PHY
related issues so Linux took other approach to workaround it.
bge(4) didn't follow that and it used to enable auto polling to
workaround it. Restore this old behavior for BCM5700 family
controllers and BCM5705 to use auto polling. For BCM5700 and
BCM5701, it seems it does not need to enable auto polling but I
restored it for safety.
Special thanks to marius who tried lots of patches with patience.
Reported by: marius
Tested by: marius
- correct the ethernet payload remainder which
must be post-offseted by -14 bytes instead of
0 bytes. This is not very clearly defined in the
NCM specification.
- add development feature about limiting the
maximum datagram count in each NCM payload.
- zero-pad alignment data
- add TX-interval tuning sysctl
Approved by: thompsa (mentor)
Link UP state could be reported first before actual completion of
auto-negotiation. This change makes bge(4) reprogram BGE_MAC_MODE,
BGE_TX_MODE and BGE_RX_MODE register only after controller got a
valid link.
receive producer ring only for BCM5700. It was believed that
BCM5700 with external SSRAM is the only controller that supports
mini ring but it seems all BCM570[0-4] requires to disable mini
receive producer ring. Otherwise, it caused unexpected RX DMA
error or watchdog timeouts.
Reported by: marius, Steve Kargl <sgk <> troutmask dot apl dot washington dot edu>
Tested by: marius, Steve Kargl <sgk <> troutmask dot apl dot washington dot edu>
Short description of the changes:
- attempt to retry some commands for which it is possible (read, query)
- always make a short sleep before checking EC status in polled mode
- periodically poll EC status in interrupt mode
- change logic for detecting broken interrupt delivery and falling back
to polled mode
- check that EC is ready for input before starting a new command, wait
if necessary
This commit is based on the original patch by David Naylor.
PR: kern/150517
Submitted by: David Naylor <naylor.b.david@gmail.com>
Reviewed by: jkim
MFC after: 3 weeks
before setting the flag, interrupt was already enabled such that
interrupt handler could be run before setting IFF_DRV_RUNNING flag.
This can lose initial link state change interrupt which in turn
make bge(4) think that it still does not have valid link. Fix this
race by protecting the taskqueue with a driver lock.
While I'm here move reenabling interrupt code after handling of link
state chage.
Reviewed by: davidch
Previously bge(4) always enabled auto polling for non-BGE_FLAG_TBI
controllers. With this change, auto polling is not used anymore so
polling through mii(4) was introduced.
Reviewed by: davidch
It seems axe(4) controllers support interrupt endpoint such that
enabling interrupt endpoint generates about 1000 interrupts/sec.
Controllers transfer 8 bytes data through interrupt endpoint and
the data include link UP/DOWN state as well as some PHY related
information. Previously axe(4) didn't use the transferred data and
didn't even try to read the data. Because axe(4) counts on mii(4)
to detect link state changes there is no need to use interrupt
endpoint here.
This change fixes generation of unnecessary interrupts which was
seen when interface is brought to UP.
No objections from: hselasky
opposition to the change, since really we need to implement missing
functionality in drivers or the 802.3 layer.
For now, restore a reminder message for a missing rum_update_mcast, but
print it only once.
controller, but make it optional.
After a problem report from Andrew Boyer, it looks like the LSI
chip may have issues (the watchdog timer fired) if too many aborts
are sent down to the chip at the same time. We know that task
management commands are serialized, and although the manual doesn't
say it, it may be a good idea to just send one at a time.
But, since I'm not certain that this is necessary, add a tunable
and sysctl variable (hw.mps.%d.allow_multiple_tm_cmds) to control
the driver's behavior.
mps.c: Add support for the sysctl and tunable, and add a
comment about the possible return values to
mps_map_command().
mps_sas.c: Run all task management commands through two new
routines, mpssas_issue_tm_request() and
mpssas_complete_tm_request().
This allows us to optionally serialize task
management commands. Also, change things so that
the response to a task management command always
comes back through the callback. (Before it could
come via the callback or the return value.)
mpsvar.h: Add softc variables for the list of active task
management commands, the number of active commands,
and whether we should allow multiple active task
management commands. Add an active command flag.
mps.4: Describe the new sysctl/loader tunable variable.
Sponsored by: Spectra Logic Corporation
as 5788. This caused BGE_MISC_LOCAL_CTL register is used to
generate link state change interrupt for non-5788 controllers. The
interrupt handler may or may not detect link state attention as
status block wouldn't be updated when an interrupt was generated
with BGE_MISC_LOCAL_CTL register. All controllers except 5700 and
5788 should use host coalescing mode register to trigger an
interrupt.
versions of controller support different number of ring control
blocks such that adjust code a bit to access known number of
send/receive ring control blocks. Previously bge(4) blindly
accessed 16 send/receive RCBs. Also move initializing standard
receive producer ring producer index, jumbo receive producer ring
producer index and mini receive producer ring producer index to
the end of each receive producer ring initialization.
Do not assume mini receive producer ring is available only when
controller has jumbo frame capability, instead explicitly check
ASIC version BCM5700 to disable mini receive producer ring.
Additionally always enable send ring 0 regardless of controller
versions. Previously bge(4) didn't enable send ring 0 if controller
is BGE_IS_5705_PLUS. Becase bge(4) need 1 send ring to send frames
at least, I have no idea how it would have worked so far.
Submitted by: davidch
dev.bce.<unit>.nvram_dump
Add the capability to write the complete contents of the NVRAM via sysctl
dev.bce.<unit>.nvram_write
These are only available if the kernel option BCE_DEBUG is enabled.
The nvram_write sysctl also requires the kernel option
BCE_NVRAM_WRITE_SUPPORT to be enabled. These are to be used at your
own caution. Since the MAC addresses are stored in the NVRAM, if you
dump one NIC and restore it on another NIC the destination NIC's
MAC addresses will not be preserved. A tool can be made using these
sysctl's to manage the on-chip firmware.
Reviewed by: davidch, yongari
BGE_MI_MODE register accesses. Previously bge(4) used to read
BGE_MI_MODE register to detect whether it needs to disable
autopolling feature or not. Because we don't touch autopolling in
other part of driver there is no reason to read BGE_MI_MODE
register given that we know default value in advance. In order to
achieve the goal, check whether the controller has CPMU(Central
Power Mangement Unit) capability. If controller has CPMU feature,
use 500KHz MII management interface(mdio/mdc) frequency regardless
core clock frequency. Otherwise use default MII clock. While I'm
here, add CPMU register definition.
In bge_miibus_readreg(), rearrange code a bit and remove goto
statement. In bge_miibus_writereg(), make sure to restore
autopolling even if MII write failed. The delay time inserted after
accessing BGE_MI_MODE register increased from 40us to 80us.
The default PHY address is now stored in softc. All PHYs supported
by bge(4) currently uses PHY address 1 but it will be changed when
we add newer controllers. This change will make it easier to change
default PHY address depending on PHY models.
Submitted by: davidch
special eject command to reappear as modem. It also requires DIR_IN flag
in the command message, so we supply some dummy data along with the command.
Feedback from X080S owners appreciated. I have not a pure Alcatel/TCTMobile
device, but another one under "Svyaznoy" (Связной) brand, and I didn't yet
managed to get it working. It is successfully recognized, it responds to
AT commands, but it shuts up right after successfull CONNECT response.
Reviewed by: hps
successfully received a frame but we failed to pass it to upper
stack due to lack of resources. So update if_iqdrops counter
instead of updating if_ierrors counter.
mode in the USB core. The patch mostly consists of updating the USB
HUB code to support USB 3.0 HUBs. This patch also add some more USB
controller methods to support more active-alike USB controllers like
the XHCI which needs to be informed about various device state events.
USB 3.0 HUBs are not tested yet, due to lack of hardware, but are
believed to work.
After this update the initial device descriptor is only read twice
when we know that the bMaxPacketSize is too small for a single packet
transfer of this descriptor.
Approved by: thompsa (mentor)
controllers combine multiple TX requests into single one if there
is room in TX buffer of controller. Updating TX packet counter at
the end of TX completion resulted in incorrect TX packet counter as
axe(4) thought it sent 1 packet. There is no easy way to know how
many combined TX were completed in the callback.
Because this change updates TX packet counter before actual
transmission, it may not be ideal one. But I believe it's better
than showing fake 8kpps under high TX load. With this change, TX
shows 221kpps on Linksus USB200M.
these names are used in data sheet. Also use UnicastPkts,
MulticastPkts and BroadcastPkts instead of UcastPkts, McastPkts
and BcastPkts to clarify its meaning.
Suggested by: bde
scratch. This driver adds support for USB3.0 devices. The XHCI
interface is also backwards compatible to USB2.0 and USB1.0 and will
evntually replace the OHCI/UHCI and EHCI drivers.
There will be follow-up commits during the coming week to link the
driver into the default kernel build and add missing USB3.0
functionality in the USB core. Currently only the driver files are
committed.
Approved by: thompsa (mentor)
different PHY instance being selected and isolation out into the wrappers
around the service methods rather than duplicating them over and over
again (besides, a PHY driver shouldn't need to care about which instance
it actually is).
- Centralize the check for the need to isolate a non-zero PHY instance not
supporting isolation in mii_mediachg() and just ignore it rather than
panicing, which should sufficient given that a) things are likely to
just work anyway if one doesn't plug in more than one port at a time and
b) refusing to attach in this case just leaves us in a unknown but most
likely also not exactly correct configuration (besides several drivers
setting MIIF_NOISOLATE didn't care about these anyway, probably due to
setting this flag for no real reason).
- Minor fixes like removing unnecessary setting of sc->mii_anegticks,
using sc->mii_anegticks instead of hardcoded values etc.
number of unexplained interrupt problems. For some reason, using HPET
interrupts there breaks HDA sound. Legacy route mode interrupts reported
to work fine there.
controllers. bge(4) exported MAC statistics on controllers that
maintain the statistics in the NIC's internal memory. Newer
controllers require register access to fetch these values. These
counters provide useful information to diagnose driver issues.
parent driver. Use that information to configure flow-control.
One drawback is there is no way to disable flow-control as we still
don't have proper way to not advertise RX/TX pause capability to
link partner. But I don't think it would cause severe problems and
users can selectively disable flow-control in switch port.
- license clause now contains "AUTHOR AND CONTRIBUTORS"
instead of just "AUTHOR"
- Add license/copyright to gpioc.c
Spotted by: Edward Tomasz Napierala, Andrew Turner
which were raised during hot-swap events. Now such events trigger cam
rescans, as is done in the mps driver.
Submitted by: Mark Johnston <mjohnston at sandvine dot com>
has reached. This reduced number of dropped frames when
flow-control is enabled. Previously it dropped incoming frames once
RX MBUF low watermark has reached. The value used in MAC RX MBUF
low watermark is greater than or equal to 4 so receiving two more
RX frames should not be a problem.
Obtained from: OpenBSD
- GPIO bus controller interface
- GPIO bus interface
- Implementation of GPIO led(4) compatible device
- Implementation of iic(4) bus over GPIO (author: Luiz Otavio O Souza)
Tested by: Luiz Otavio O Souza, Alexandr Rybalko
- Sync shared code with Intel internal
- New client chipset support added
- em driver - fixes to 82574, limit queues to 1 but use MSIX
- em driver - large changes in TX checksum offload and tso
code, thanks to yongari.
- some small changes for watchdog issues.
- igb driver - local timer watchdog code was missing locking
this and a couple other watchdog related fixes.
- bug in rx discard found by Andrew Boyer, check for null pointer
MFC: a week
