When we find a state for packets that was created by a reply-to rule we
still need to process the packet. The state may require us to modify the
packet (e.g. in rdr or nat cases), which we won't do with the shortcut.
MFC after: 2 week
Sponsored by: Rubicon Communications, LLC ("Netgate")
44c125c4cebc2fd87c6260b90eddae11201f5232 switched the nvlist allocations
to be M_WAITOK, but this precludes the use in non-sleepable contexts.
(E.g. with a nonsleepable lock held).
All callers for these allocation functions already cope with memory
alloation failures, so there's no reason to allow sleeping during
allocations.
Reviewed by: melifaro, oshogbo
MFC after: 1 week
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D29556
With new ZFS prefetcher improvements it is no longer needed to fully
serialize reads to reach decent prediction hit rate. Softer variant
only creates small time window to reduce races instead of completely
blocking following reads while previous is running. It much less
hurts the performance in case of prediction miss.
MFC after: 1 month
Commit: f2f1ab39c040 ("pci_user: call bus_translate_resource before BAR mmap")
broke build for 32-bit platforms due to rman_res_t and vm_paddr_t
incompatible types. Fix that.
On some armv8 machines it is possible that the mapping between CPU
and PCI bus BAR base addresses is not 1:1. In case a BAR is allocated
in kernel using bus_alloc_resource_any this translation is handled in
ofw_pci_activate_resource.
Do the same in pci_user.c by calling bus_translate_resource devmethod.
This fixes mmaping BARs to userspace on Marvell SoCs (Armada 7k8k/CN913x)
and possibly many other platforms.
Submitted by: Kornel Duleba <mindal@semihalf.com>
Reviewed by: kib
Obtained from: Semihalf
Sponsored by: Marvell
MFC after: 2 weeks
Differential revision: https://reviews.freebsd.org/D29604
Use viewport "2" instead of "0" and change window type from MEM to IO.
Without these changes the MEM ATU window can be overwritten with the IO one.
Submitted by: Kornel Duleba <mindal@semihalf.com>
Obtained from: Semihalf
Sponsored by: Marvell
Differential revision: https://reviews.freebsd.org/D29516
Radix MMU code was missing TLB invalidations when some Level 3 PDEs were
modified. This caused TLB multi-hit machine check interrupts when
superpages were enabled.
Reviewed by: jhibbits
MFC after: 2 weeks
Sponsored by: Eldorado Research Institute (eldorado.org.br)
Differential Revision: https://reviews.freebsd.org/D29511
They have their own lifetime managed by the containing objects.
Premature and unexpected free causes corruption.
Reviewed by: hselasky
Sponsored by: Mellanox Technologies/NVidia Networking
MFC after: 1 week
the variables hold pointers to a linux_cdev, not to a FreeBSD cdev.
Reviewed by: hselasky
Sponsored by: Mellanox Technologies/NVidia Networking
MFC after: 1 week
dl_iterate_phdr() dlpi_tls_data should provide the TLS module segment
address, and not the TLS init segment address as it does now.
Reported by: emacsray@gmail.com
PR: 254774
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Add flow_control to hw.ixl tunables tree to let override
initial flow control configuration for all interfaces.
Keep using configuration set by NVM by default.
Reviewed by: erj@, gallatin@
Tested by: gowtham.kumar.ks_intel.com
MFC after: 1 week
Sponsored by: Intel Corporation
Differential Revision: https://reviews.freebsd.org/D29338
Older G4 and G3 models have a programmer's switch that can be used to
generate an interrupt to drop into the debugger.
This code hadn't been tested for a long time. It had been broken back
in 2005 in r153050.
Repair and modernize the code and add it to GENERIC.
Reviewed by: jhibbits (approved w/ removal of unused sc_dev var)
Sponsored by: Tag1 Consulting, Inc.
Differential Revision: https://reviews.freebsd.org/D29131
Summary:
They're nearly identical, so don't use two copies. Merge the newer
driver into the older one, and move it to a common location.
Add the Semihalf and associated copyrights in addition to mine, since
it's a non-trivial amount of code merged.
Reviewed By: mw
Differential Revision: https://reviews.freebsd.org/D29520
Usually on boot the MPS is already configured by BIOS. But we've
found that on hot-plug it is not true at least for our Supermicro
X11 boards. As result, mismatch between root's configuration of
256 bytes and device's default of 128 bytes cause problems for some
devices, while others seem to work fine.
MFC after: 1 month
Sponsored by: iXsystems, Inc.
These two have proven to be useful during debugging. We may as well keep
them permanently.
Others will be added as their utility becomes clear.
Reviewed by: gnn
MFC after: 2 weeks
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D29555
before this change pf_route operated on the semantic that pf runs
when packets go over an interface, so when pf_route changed which
interface the packet was on it would run pf_test again. this change
changes (restores) the semantic that pf is only supposed to run
when packets go in or out of the network stack, even if route-to
is responsibly for short circuiting past the network stack.
just to be clear, for normal packets (ie, those not touched by
route-to/reply-to/dup-to), there isn't a difference between running
pf when packets enter or leave the stack, or having pf run when a
packet goes over an interface.
the main reason for this change is that running the same packet
through pf multiple times creates confusion for the state table.
by default, pf states are floating, meaning that packets are matched
to states regardless of which interface they're going over. if a
packet leaving on em0 is rerouted out em1, both traversals will end
up using the same state, which at best will make the accounting
look weird, or at worst fail some checks in the state and get
dropped.
another reason for this commit is is to make handling of the changes
that route-to makes consistent with other changes that are made to
packet. eg, when nat is applied to a packet, we don't run pf_test
again with the new addresses.
the main caveat with this diff is you can't have one rule that
pushes a packet out a different interface, and then have a rule on
that second interface that NATs the packet. i'm not convinced this
ever worked reliably or was used much anyway, so we don't think
it's a big concern.
discussed with many, with special thanks to bluhm@, sashan@ and
sthen@ for weathering most of that pain.
ok claudio@ sashan@ jmatthew@
Obtained from: OpenBSD
MFC after: 2 weeks
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D29554
Follow-up change to a6d768d845c173823785c71bb18b40074e7a8998.
This change adds iflib support for netmap offsets, enabling
applications to use offsets on any driver backed by iflib.
Commit 01ae8969a9ee stopped the NFSv4.1/4.2 server from implicitly
binding the back channel to a new TCP connection so that it
conforms to RFC5661, for NFSv4.1/4.2. An effect of this
for the Linux NFS client is that it will do a
BindConnectionToSession when it sees NFSV4SEQ_CBPATHDOWN
set in a sequence reply. This will fix the back channel, but the
first attempt at a callback like CB_RECALL will already have
failed. Without this patch, a CB_RECALL will not be retried
and that can result in a 5 minute delay until the delegation
times out.
This patch modifies the code so that it will retry the
CB_RECALL every couple of seconds, often avoiding the
5 minute delay.
This is not critical for correct behaviour, but avoids
the 5 minute delay for the case where the Linux client
re-binds the back channel via BindConnectionToSession.
MFC after: 2 weeks
Commit 01ae8969a9ee stopped the NFSv4.1/4.2 server from implicitly
binding the back channel to a new TCP connection so that it
conforms to RFC5661, for NFSv4.1/4.2. An effect of this
for the Linux NFS client is that it will do a
BindConnectionToSession when it sees NFSV4SEQ_CBPATHDOWN
set in a sequence reply. It will do this for every RPC
reply until it no longer sees the flag.
Without that patch, this will happen until the client does
an Open, which will clear LCL_CBDOWN.
This patch clears LCL_CBDOWN right away, so that
NFSV4SEQ_CBPATHDOWN will no longer be sent to the client
in Sequence replies and the Linux client will not repeat
the BindConnectionToSession RPCs.
This is not critical for correct behaviour, but reduces
RPC overheads for cases where the Open will not be done
for a while.
MFC after: 2 weeks
After e7a5b3bd058, the la->delay value was adjusted after
being set by the starvation_limit code block, which is wrong.
Reported By: avg
Reviewed By: avg
Fixes: e7a5b3bd058
Sponsored By: NetApp, Inc.
Sponsored By: Klara, Inc.
Differential Revision: https://reviews.freebsd.org/D29513
This was ported from illumos but not completely done. Currently we do
not perform type deduplication between KLDs and the kernel, i.e., kernel
modules have a complete type graph. So, remove it for now since it's
not functional and complicates the task of modifying various CTF type
definitions, and we are hitting some limits in the current format which
necessitate an update.
No functional change intended.
MFC after: 2 weeks
After making sbuf_drain safe for external use,
there is no need to protect the call.
MFC after: 2 weeks
Reviewed By: tuexen, #transport
Sponsored by: NetApp, Inc.
Differential Revision: https://reviews.freebsd.org/D29545
While sbuf_drain was an internal function, two
KASSERTS checked the sanity of it being called.
However, an external caller may be ignorant if
there is any data to drain, or if an error has
already accumulated. Be nice and return immediately
with the accumulated error.
MFC after: 2 weeks
Reviewed By: tuexen, #transport
Sponsored by: NetApp, Inc.
Differential Revision: https://reviews.freebsd.org/D29544
The VFS conventions is that VOP_LOOKUP() methods do not need to handle
ISDOTDOT lookups for VV_ROOT vnodes (since they cannot, after all). Nullfs
bypasses VOP_LOOKUP() to lower filesystem, and there, due to user actions,
it is possible to get into situation where
- upper vnode does not have VV_ROOT set
- lower vnode is root
- ISDOTDOT is requested
User just needs to nullfs-mount non-root of some filesystem, and then move
some directory under mount, out of mount, using lower filesystem.
In this case, nullfs cannot do much, but we still should and can ensure
internal kernel structures are consistent. Avoid ISDOTDOT lookup forwarding
when VV_ROOT is set on lower dvp, return somewhat arbitrary ENOENT.
PR: 253593
Reported by: Gregor Koscak <elogin41@gmail.com>
Test by: Patrick Sullivan <sulli00777@gmail.com>
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
A lot of firmware files have a "-" in the name. That "-" is a problem
when dealing with shell variables or loader (e.g., auto-loading .ko).
It may thus often be convenient to generate firmware kernel object files
with s/-/_/g in the name. In order to automatically find them from
drivers using LinuxKPI also substitue the '-' for a '_' like we do
for '/' and '.' already.
Reviewed-by: hselasky, manu (ok)
MFC-after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D29514
Rename the last remaining bits depending on ifnet from linux/netdevice.h
instead of using the compat macros. This helps clearing up
struct netdevice being struct ifnet from linux/netdevice.h.
Sponsored-by: The FreeBSD Foundation
MFC-after: 2 weeks
Reviewed-by: hselasky, kib
X-D-R: D29366
Differential Revision: https://reviews.freebsd.org/D29497
Under geom(4) nvme_ns_bio_process() is on the path where sleep
is prohibited as g_io_shedule_down() calls THREAD_NO_SLEEPNG()
before geom->start().
Reviewed By: imp
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D29539
Allow the calculation of the mu adjustment factor to underflow instead of
rejecting the VOI sample from the digest and logging an error. This trades off
some (currently unquantified) additional centroid error in exchange for better
fidelity of the distribution's density, which is the right trade off at the
moment until follow up work to better handle and track accumulated error can be
undertaken.
Obtained from: Netflix
MFC after: immediately
