Add a new hw.aw_mmc.debug sysctl to help debugging the driver.
Bit 0 will debug card changes (removal, insertion, power up/down)
Bit 1 will debug ios changes
Bit 2 will debug interrupts received
Bit 3 will debug commands sent
Implement vt_vbefb to support Vesa Bios Extensions (VBE) framebuffer with VT.
vt_vbefb is built based on vt_efifb and is assuming similar data for
initialization, use MODINFOMD_VBE_FB to identify the structure vbe_fb
in kernel metadata.
struct vbe_fb, is populated by boot loader, and is passed to kernel via
metadata payload.
Differential Revision: https://reviews.freebsd.org/D27373
These swapping functions violate BUSDMA contract - we cannot write
to armed (by bus_dmamap_sync(PRE_..)) buffers. Remove them at least
from little endian machines until a better solution will be developed.
Reviewed by: imp
MFC after: 3 weeks
ROUTE_MPATH is the new config option controlling new multipath routing
implementation. Remove the last pieces of RADIX_MPATH-related code and
the config option.
Reviewed by: glebius
Differential Revision: https://reviews.freebsd.org/D27244
Some of them have limited KVA, like arm, which prevents startup from
allocating needed number of large pbufs. Other, for instance i386,
are dis-balanced enough after 4/4 that blind bump is probably harmful
because it allows for much more in-flight io than other tunables are
ready for.
Requested by: mmel
Reviewed by: emaste, mmel
Sponsored by: The FreeBSD Foundation
MPIDR represents physical locality of given core and it should be used as
the only viable/robust connection between cpuid (which have zero relation to
cores topology) and external description (for example in FDT). It can be
used for determining which interrupt is associated to given per-CPU PMU
or by scheduler for determining big/little core or cluster topology.
MFC after: 3 weeks
We read the bus end value from the _CRS method. On some systems we need
to further limit it based on the MCFG table.
Support this by setting a default value, then update it if needed in the
_CRS table, and finally reduce it if it is past the end of the MCFG tabel.
This will allow for both systems that use either method to encode this
value.
This partially reverts r347929, removing the error printf.
Reviewed by: philip
Tested by: philip, Andrey Fesenko <f0andrey_gmail.com>
MFC after: 2 weeks
Sponsored by: Innovate UK
Differential Revision: https://reviews.freebsd.org/D27274
It allows code within routing subsystem to transparently reference nexthops
and nexthop groups, similar to nhop_free_any(), abstracting ROUTE_MPATH
details.
Differential Revision: https://reviews.freebsd.org/D27410
No functional changes.
* Make lookup path of fib<4|6>_lookup_debugnet() separate functions
(fib<46>_lookup_rt()). These will be used in the control plane code
requiring unlocked radix operations and actual prefix pointer.
* Make lookup part of fib<4|6>_check_urpf() separate functions.
This change simplifies the switch to alternative lookup implementations,
which helps algorithmic lookups introduction.
* While here, use static initializers for IPv4/IPv6 keys
Differential Revision: https://reviews.freebsd.org/D27405
The resulting KPI can be used by routing table consumers to estimate the required
scale for route table export.
* Add tracking for rib routes
* Add accessors for number of nexthops/nexthop objects
* Simplify rib_unsubscribe: store rnh we're attached to instead of requiring it up
again on destruction. This helps in the cases when rnh is not linked yet/already unlinked.
Differential Revision: https://reviews.freebsd.org/D27404
We use 4-level EPT pages, correct the upper bound.
Reviewed by: grehan
Sponsored by: The FreeBSD Foundation
Differential revision: https://reviews.freebsd.org/D27402
Apparently some architectures, like ppc in its hashed page tables
variants, account mappings by pmap_qenter() in the response from
pmap_is_page_mapped().
While there, eliminate useless userp variable.
Noted and reviewed by: alc (previous version)
Sponsored by: The FreeBSD Foundation
Differential revision: https://reviews.freebsd.org/D27409
Actually check the wrmsr_safe() return value when setting autonomous
HWP for package.
PR: 245582
Differential Revision: https://reviews.freebsd.org/D24744
With 4KB page size the 2MB is the maximum we can address with one page PRP.
Going further would require chaining, that would add some more complexity.
On the other side, to reduce memory consumption, allocate the PRP memory
respecting maximum transfer size reported in the controller identify data.
Many of NVMe devices support much smaller values, starting from 128KB.
To do that we have to change the initialization sequence to pull the data
earlier, before setting up the I/O queue pairs. The admin queue pair is
still allocated for full MIN(maxphys, 2MB) size, but it is not a big deal,
since there is only one such queue with only 16 trackers.
Reviewed by: imp
MFC after: 2 weeks
Sponsored by: iXsystems, Inc.
Building without INET6 support was already possible. Now it's possible to
build ping with only INET6, or even with neither INET nor INET6.
Reported by: bz
Reviewed by: bz
MFC-With: 368045
Differential Revision: https://reviews.freebsd.org/D27394
This seems to be required by recent clang asan.
I do not see other way than put the symbol under FBSD_1.0 version.
PR: 251112
Reported by: Andrew Stitcher <astitcher@apache.org>
Reviewed by: emaste
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D27389
Replace MAXPHYS by runtime variable maxphys. It is initialized from
MAXPHYS by default, but can be also adjusted with the tunable kern.maxphys.
Make b_pages[] array in struct buf flexible. Size b_pages[] for buffer
cache buffers exactly to atop(maxbcachebuf) (currently it is sized to
atop(MAXPHYS)), and b_pages[] for pbufs is sized to atop(maxphys) + 1.
The +1 for pbufs allow several pbuf consumers, among them vmapbuf(),
to use unaligned buffers still sized to maxphys, esp. when such
buffers come from userspace (*). Overall, we save significant amount
of otherwise wasted memory in b_pages[] for buffer cache buffers,
while bumping MAXPHYS to desired high value.
Eliminate all direct uses of the MAXPHYS constant in kernel and driver
sources, except a place which initialize maxphys. Some random (and
arguably weird) uses of MAXPHYS, e.g. in linuxolator, are converted
straight. Some drivers, which use MAXPHYS to size embeded structures,
get private MAXPHYS-like constant; their convertion is out of scope
for this work.
Changes to cam/, dev/ahci, dev/ata, dev/mpr, dev/mpt, dev/mvs,
dev/siis, where either submitted by, or based on changes by mav.
Suggested by: mav (*)
Reviewed by: imp, mav, imp, mckusick, scottl (intermediate versions)
Tested by: pho
Sponsored by: The FreeBSD Foundation
Differential revision: https://reviews.freebsd.org/D27225
This uses the same snapshot routine as other VirtIO devices.
Submitted by: Vitaliy Gusev <gusev.vitaliy@gmail.com>
Differential Revision: https://reviews.freebsd.org/D26265
Permit suspend/resume of a XHCI device model that has not been
attached to by a driver in a guest OS.
Submitted by: Vitaliy Gusev <gusev.vitaliy@gmail.com>
Differential Revision: https://reviews.freebsd.org/D26264
Restructure the loop a little bit to make it a little more clear how it
really operates: we never allocate any domains at the beginning of the first
iteration, and it will run until we've satisfied the amount we need or we
encounter an error.
The lock is now taken outside of the loop to make stuff inside the loop
easier to evaluate w.r.t. locking.
This fixes it to not try and allocate any domains for the freelist under the
spinlock, which would have happened before if we needed any new domains.
Reported by: syzbot+6743fa07b9b7528dc561@syzkaller.appspotmail.com
Reviewed by: markj
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D27371
There is no need for these to be function pointers since they are
never modified post-module load.
Rename AMD/Intel ops to be more consistent.
Submitted by: adam_fenn.io
Reviewed by: markj, grehan
Approved by: grehan (bhyve)
MFC after: 3 weeks
Differential Revision: https://reviews.freebsd.org/D27375
Check label's ranges for address we want to translate if a CU doesn't
have usable DW_AT_range or DW_AT_low_pc.
Use more appropriate names: "struct CU" -> "struct range"
Developed as part of upstream ELF Tool Chain bug report
https://sourceforge.net/p/elftoolchain/tickets/552/ although this does
not address the specific case reported there.
Submitted by: Tiger Gao <tig@freebsdfoundation.org>
MFC after: 1 month
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D23782
where it originally was. The bug introduced in r366267.
o Remove options IOMMU from i386/MINIMAL as we don't have it in
i386/GENERIC.
Reported by: Harry Schmalzbauer <freebsd@omnilan.de>
Reviewed by: kib
Sponsored by: Innovate DSbD
Differential Revision: https://reviews.freebsd.org/D27399
Modern ARM systems do not have an FPA unit but GDB reserves register
indices for FPA registers and expects the stub to know their sizes.
PR: 251022
Submitted by: Dmitry Salychev <dsl@mcusim.org>
MFC after: 2 weeks
