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.
