segment so that it's always mapped by the loader.
o Change the alternate fault handlers to account for PBVM. Since
currently the region is handled by the VHPT, no alternate faults
will be generated for it.
been undergoing test for some weeks. This improves the RX
mbuf handling to avoid system hang due to depletion. Thanks
to all those who have been testing the code, and to Beezar
Liu for the design changes.
Next the igb driver is updated for similar RX changes, but
also to add new features support for our upcoming i350 family
of adapters.
MFC after a week
chipsets that do not have an HT slave at 0:0:0:0. The Linux quirk is
actually specific to Nvidia chipsets and the check I had added was in
the wrong place.
Prodded by: nathanw
- Always enable the HyperTransport MSI mapping window for HyperTransport
to PCI bridges (these show up as HyperTransport slave devices).
The mapping windows in PCI-PCI bridges are enabled by existing code
in the PCI-PCI bridge driver as MSI requests propagate up the device
tree, but Host-PCI bridges don't really show up in that tree.
- If the PCI device at domain 0 bus 0 slot 0 function 0 is not a
HyperTransport device, then blacklist MSI on any other HT devices in
the system. Linux has a similar quirk.
PR: kern/155442
Tested by: Zack Dannar zdannar of gmail
MFC after: 1 week
which are not yet fully initialized (i.e. ones with p_state == PRS_NEW).
Without it, we could panic in _thread_lock_flags().
Note that there may be other instances of FOREACH_PROC_IN_SYSTEM() that
require similar fix.
Reported by: pho, keramida
Discussed with: kib
ffs_snapgone(). ufs.ko module is not build with FFS define, causing
snapshot inode number slots in superblock never be freed, as well as a
reference on the snapshot vnode.
IFS was removed several years ago, and UFS/FFS separation was not
maintained for real.
Reported, analyzed and tested by: Yamagi Burmeister <lists yamagi org>
MFC after: 3 days
With this change, driver may not notice updated descriptor status
change when bounce buffers are active. However, rxeof() in next run
will handle the synchronization.
Change dc_rxeof() a bit to return the number of processed frames in
RX descriptor ring. Previously it returned the number of frames
that were successfully passed to upper stack which in turn means it
ignored frames that were discarded due to errors. The number of
processed frames in RX descriptor ring is used to detect whether
driver is out of sync with controller's current descriptor pointer.
Returning number of processed frames reduces unnecessary (probably
wrong) re-synchronization.
Reviewed by: marius
Unfortunately, it pulls in <machine/cputypes.h> but it is small enough and
namespace pollution is minimal, I hope.
Pointed out by: bde
Pointy hat: jkim
Add support for Pre-Boot Virtual Memory (PBVM) to the loader.
PBVM allows us to link the kernel at a fixed virtual address without
having to make any assumptions about the physical memory layout. On
the SGI Altix 350 for example, there's no usuable physical memory
below 192GB. Also, the PBVM allows us to control better where we're
going to physically load the kernel and its modules so that we can
make sure we load the kernel in memory that's close to the BSP.
The PBVM is managed by a simple page table. The minimum size of the
page table is 4KB (EFI page size) and the maximum is currently set
to 1MB. A page in the PBVM is 64KB, as that's the maximum alignment
one can specify in a linker script. The bottom line is that PBVM is
between 64KB and 8GB in size.
The loader maps the PBVM page table at a fixed virtual address and
using a single translations. The PBVM itself is also mapped using a
single translation for a maximum of 32MB.
While here, increase the heap in the EFI loader from 512KB to 2MB
and set the stage for supporting relocatable modules.
The compiler will truncate the 32-bit return value of mv_gpio_value_get()
to match the 8-bit return value of mv_gpio_in(). A conditional expression
is used to have mv_gpio_in() always return 0 or 1 instead.
soon as possible for stack protector. However, dummy timecounter does not
have enough entropy and we don't need to sacrifice Pentium class and later.
Pointed out by: Maxim Dounin (mdounin at mdounin dot ru)
This does a few things in particular:
* Abstracts out the gain control settings into a separate function;
* Configure antenna diversity, LNA and antenna gain parameters;
* Configure ob/db entries - the later v4k EEPROM modal revisions have
multiple OB/DB parameters which are used for some form of
calibration. Although the radio does have defaults for each,
the EEPROM can override them.
This resolves the AR2427 related issues I've been seeing and makes
it stable at all 11g rates for both TX and RX.
The offsets didn't match the assumption that nfarray[] is ordered by the
chainmask bits and programmed via the register order in ar5416_cca_regs[].
This repairs that damage and ensures that chain 1 is programmed correctly.
(And extension channels will now be programmed correctly also.)
This fixes some of the stuck beacons I've been seeing on my AR9160/AR5416
setups - because Chain 1 would be programmed -80 or -85 dBm, which is
higher than the actual noise floor and thus convincing the radio that
indeed it can't ever transmit.
uses of ic_curchan occur. Due to the nature of a scan, switching
channels constantly and all this happening without any kind of locks
held, it might happen that ic_curchan points to nowhere leading to
panics. Fix this by not allowing frame injections while in SCAN state.
Tested by: Paul B. Mahol <onemda at gmail.com>
If multiple networks are available the max bandwidth is one
condition used for selecting the "best" BSS. To achieve that
we should consider all parameters which affect the max RX rate.
This includes 20/40MHz, SGI and the of course the MCS set.
If the TX MCS parameters are available we should use those,
because an AP announcing support for receiving frames at 450Mbps
might only be able to transmit at 150Mbps (1T3R). I haven't seen
devices with support for transmitting at higher rates then
receiving, so prefering TX over RX information should be safe.
While here, remove the hardcoded assumption that MCS15 is the max
possible MCS rate, use MCS31 instead which really is the highest
rate (according to the 802.11n std). Also, fix a mismatch of an
40MHz/SGI check.
Contrary to the rateset information in legacy frames the MCS Set
field also contains TX capability information in cases where the
number of available TX and RX spartial streams differ. Because a
rateset doesn't contain that information we have to pull the
those directly from the hardware capabilities.
