- Replace a magic number with CTS_NVME_VALID_SPEC.
- Set the transport and protocol versions the same as for XPT_PATH_INQ.
Probably we shouldn't bother with setting the version in the 'spec'
member of ccb_trans_settings_nvme at all and use the transport
and/or protocol version field instead.
Reviewed by: chuck, imp
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D40616
The ichsmb driver does not actually handle SMBALERT, other than by logging the
first 16 occurences of the ICH_HST_STA_SMBALERT_STS_SMBALERT status
flag. Because the SMBALERT is not acknowledged by the host, clearing it in the
host status register does not appear to work as long as some slave device is
pulling the SMBALERT line low, at least for C2000 chips. As a result, if a slave
device does pull SMBALERT low the interrupt handler will always loop its maximum
of 16 times attempting to clear all status register flags and device_printf the
status register. The result is the kernel message buffer is littered with these
device_printfs at every interrupt.
To remedy the problem, the ICH_HST_STA_SMBALERT_STS flag is zeroed in the read
host status register value, just as with ICH_HST_STA_INUSE_STS and
ICH_HST_STA_HOST_BUSY. This allows the loop to break when no other flags that
must be handled are set in the host status register. Additionally, because the
SMBALERT is not actually handled the SMBALERT logging is omitted as it has no
actual function at this time.
Reviewed by: imp
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D39966
If MOD_LOAD fails, then MOD_UNLOAD will be called to unwind module
state, but wg_module_init() will have already deinitialized everything
it needs to in a manner that renders it unsafe to call MOD_UNLOAD
after (e.g., freed zone not reset to NULL, wg_osd_jail_slot not reset
to 0). Let's simply stop trying to handle freeing everything in
wg_module_init() to simplify it; let the subsequent MOD_UNLOAD deal with
it, and let's make that robust against partially-constructed state.
jhb@ notes that MOD_UNLOAD being called if MOD_LOAD fails is kind of an
anomaly that doesn't match other paradigms in the kernel; e.g., if
device_attach() fails, we don't invoke device_detach(). It's likely
that a future commit will revert this and instead stop calling
MOD_UNLOAD if MOD_LOAD fails, expecting modules to clean up after
themselves in MOD_LOAD upon failure. Some other modules already do this
and may see similar problems to the wg module (see: carp). The proper
fix is decidedly a bit too invasive to do this close to 14 branching,
and it requires auditing all kmods (base + ports) for potential leaks.
PR: 272089
Reviewed by: emaste
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D40708
Previously we'd jump to the `free_crypto` label, but never set `ret` to
a failure value -- it would retain success from the call just prior.
Set ret up properly.
This is part of D40708, but not the main point of the change.
We kept le(4) in the pre-12.0 purge because it was needed for Qemu/MIPS
(virtio networking didn't work) but the MIPS port has been removed.
Reviewed by: emaste
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D40683
This update contains a rewrite of the VPD parser based on the
definition of the structure of the VPD data (ident, R/O resource
data, optional R/W data, end tag).
The parser it replaces was based on a state machine, with the tags
and the parsed data controlling the state changes. The flexibility
of this parser is actually not required, and it has caused kernel
panics when operating on malformed data.
Analysis of the VPD code to make it more robust lead me to believe
that it was easier to write a "strict" parser than to restrict the
flexible state machine to detect and reject non-well-formed data.
A number of restrictions had already been added, but they make the
state machine ever more complex and harder to understand.
This updated parser has been verified to return identical parsed data
as the current implementation for the example VPD data given in the
PCI standard and in some actual PCIe VPD data.
It is strict in the sense that it detects and rejects any deviation
from a well-formed VPD structure.
PR: 272018
Approved by: kib
MFC after: 4 weeks
Differential Revision: https://reviews.freebsd.org/D34268
When running VM on ARM64 Hyper-V, we have seen netvsc/hn driver hit
assert on reading duplicated network completion packets over vmbus
channel or one of the tx channels stalls completely. This seems to
caused by processor reordering the instructions when vmbus driver
reading or updating its channel ring buffer indexes.
Fix this by using load acquire and store release instructions to
enforce the order of these memory accesses.
PR: 271764
Reported by: Souradeep Chakrabarti <schakrabarti@microsoft.com>
Reviewed by: Souradeep Chakrabarti <schakrabarti@microsoft.com>
Tested by: whu
Sponsored by: Microsoft
Previously every file that included mpi3mr_app.h but did not use
mpi3mr_mgmt_info reported error: 'mpi3mr_mgmt_info' defined but not
used.
Fixes: 2d1d418e1e ("mpi3mr: 3rd Generation Tri-Mode NVMe/SAS/SATA...")
Reported by: amd64-gcc12 Cirrus-CI job
Sponsored by: The FreeBSD Foundation
This is required for pci_alloc_msix() to work and to thus use
MSI-X interrupts for PCI-e hotplug.
Reported by: cperciva
Reviewed by: cperciva
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D40581
The Emulex OneConnect NIC driver hasn't seen any commits other than ioctl
bug fixes (some severe) and sweeping commits since 2016. There is no
indication of new parts since 2014 or earlier. As such, deprecate the
driver with the aim of removing it prior to FreeBSD 15.
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D40531
Replace direct stores to userspace addresses (never safe and broken on
modern CPUs) with a copyout. Use a static assert on the size to ensure
we don't overflow the field.
Reviewed by: markj, jhb
Sponsored by: DARPA
Differential Revision: https://reviews.freebsd.org/D40519
This is Broadcom's mpi3mr driver for FreeBSD version 8.6.0.2.0.
The mpi3mr driver supports Broadcom SAS4116-based cards in the 9600
series: 9670W-16i, 9670-24i, 9660-16i, 9620-16i, 9600-24i, 9600-16i,
9600W-16e, 9600-16e, 9600-8i8e.
Initially only available as a module and on amd64/arm64, since that's
how it has been tested to date. Future commits will add it to the kernel
build and may expand the architectures it is supported on.
Co-authored-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com>
Feedback-by: ken (prior versions)
Reviewed-by: imp
RelNotes: yes
Differential-Revision: https://reviews.freebsd.org/D36771
Differential-Revision: https://reviews.freebsd.org/D36772
Use a goto to clarify the control flow when there is no process
descriptor. This wins back a level of indentation.
No functional change intended.
Reviewed by: jkoshy
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D40518
Split out the functional logic from the syscall handler into a helper
function. This keeps it separate from the syscall control-flow logic,
resulting in better readability overall. It also wins back a level of
indentation.
Reviewed by: jkoshy
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D40294
Split out the functional logic from the syscall handler into a helper
function. This keeps it separate from the syscall control-flow logic,
resulting in better readability overall. It also wins back a level of
indentation.
Reviewed by: jkoshy
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D40293
Split out the large chunk of functional logic from the syscall handler
into a helper function. This keeps it separate from the syscall
control-flow logic, resulting in better readability overall. It also
wins back a level of indentation.
Flip the return values of the pmc_can_allocate_row() and
pmc_can_allocate_rowindex() functions to boolean types, like their
naming implies. We weren't actually using the error codes they were
returning.
While here, make some small style cleanups. No functional change
intended.
Reviewed by: jkoshy
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D40292
Begin splitting out the large chunks of functional logic from the
syscall handler into separate helper functions. This keeps it separate
from the syscall control-flow logic, resulting in better readability
overall. It also wins back a level of indentation.
For this and the similar changes to follow, try to keep copyin() and
copyout() calls outside of the helper functions. The changes are
intended to have no functional impact, but do address style issues.
Reviewed by: jkoshy
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D40291
Move the functionality into a separate helper function. All other
actions in pmc_hook_handler() already have this.
While here make some small style improvements. Restructure one for loop.
Reviewed by: jkoshy
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D40333
Everything else I found worthy of adjustment.
- Order local variable declarations per style(9)
- Make use of __unused annotations rather than cast to void
- Remove unnecessary casts
- Add (void) casts to PMC class methods where the return value is
ignored
- A couple instances of reordering statements for clarity
- Prefer bool type where applicable
- unsigned int -> u_int
- Use uintmax_t/%j in printf calls
- Formatting of comments
Reviewed by: jkoshy
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D40517
- Explicitly check the value in conditional statements, per style(9)
- Add braces around more loops and conditionals, wherever it appears
(to me) to aid legibility
- Expand some assignments within if statements
- Fix formatting around list-type FOREACH macros
Reviewed by: jkoshy
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D40515
Handle a few things related to spacing:
- Remove redundant/superfluous blank lines (and add a couple where
helpful)
- Add spacing around binary operators
- Remove spacing after casts and before goto labels
- Adjustments for line width of 80 chars
- Tab/space character issues
Reviewed by: jkoshy
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D40514
We already run nda by default on all the !x86 architectures. Switch the
default to nda. nda created nvd compatibility links by default, so this
should be a nop. If this causes problems for your application, set
hw.nvme.use_nvd=1 in your loader.conf.
Sponsored by: Netflix
Vmbus_synic_setup() is invoked via vmbus_intrhook -> vmbus_doattach
-> smp_rendezvous. On !EARLY_AP_STARTUP (e.g., aarch64), SMP isn't
functional in intrhooks and smp_rendezvous() will just call
vmbus_synic_setup() on the boot processor. There's nothing that will
initialize the pcpu data on every other AP.
To fix it we need to use SI_SUB_SMP for vmbus_doattach(). With this
patch the vmbus interrupt should work on all arm64 cpus on HyperV.
Reported by: kevans
Reviewed by: kevans, whu
Tested by: Souradeep Chakrabarti <schakrabarti@microsoft.com>
Obtained from: Souradeep Chakrabarti <schakrabarti@microsoft.com>
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D40279
While there, also make MODULE_PNP_INFO to reflect that the device
description is provided.
Reported-by: jrtc27
Reviewed-by: jrtc27, imp
Differential Revision: https://reviews.freebsd.org/D40430
In the Hyper-V drivers we need to allocate buffers shared between the
host and guest. This memory has been allocated with bus_dma, however
it doesn't use this correctly, e.g. it is missing calls to
bus_dmamap_sync. Along with this on arm64 we need this memory to be
mapped with the correct memory type that bus_dma may not use.
Switch to contigmalloc to allocate this memory as this will correctly
allocate cacheable memory.
Reviewed by: Souradeep Chakrabarti <schakrabarti@microsoft.com>
Sponsored by: Arm Ltd
Differential Revision: https://reviews.freebsd.org/D40227
gVNIC is a virtual network interface designed specifically for
Google Compute Engine (GCE). It is required to support per-VM Tier_1
networking performance, and for using certain VM shapes on GCE.
The NIC supports TSO, Rx and Tx checksum offloads, and RSS.
It does not currently do hardware LRO, and thus the software-LRO
in the host is used instead. It also supports jumbo frames.
For each queue, the driver negotiates a set of pages with the NIC to
serve as a fixed bounce buffer, this precludes the use of iflib.
Reviewed-by: markj
MFC-after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D39873
Currently the PROCEXEC event only reports a single address, entryaddr,
which is the entry point of the interpreter in the typical dynamic case,
and used solely to calculate the base address of the interpreter. For
PDEs this is fine, since the base address is known from the program
headers, but for PIEs the base address varies at run time based on where
the kernel chooses to load it, and so pmcstat has no way of knowing the
real address ranges for the executable. This was less of an issue in the
past since PIEs were rare, but now they're on by default on 64-bit
architectures it's more of a problem.
To solve this, pass through what was picked for et_dyn_addr by the
kernel, and use that as the offset for the executable's start address
just as is done for everything in the kernel. Since we're changing this
interface, sanitise the way we determine the interpreter's base address
by passing it through directly rather than indirectly via the entry
point and having to subtract off whatever the ELF header's e_entry is
(and anything that wants the entry point in future can still add that
back on as needed; this merely changes the interface to directly provide
the underlying variables involved).
This will be followed up by a bump to the pmc major version.
Reviewed by: jhb
Differential Revision: https://reviews.freebsd.org/D39595
This unifies the user object and kernel module paths in libpmcstat,
allows modules loaded from non-standard locations (e.g. from a user's
home directory when testing) to be found and, since buffer is what all
the warnings here use (they were never updated when buffer_modules were
added to pick based on where the file was found) has the side-effect of
ensuring the messages are correct.
This includes obsoleting the now-superfluous -k option in pmcstat.
This change breaks the hwpmc ABI and will be followed by a bump to the
pmc major version.
Reviewed by: jhb, jkoshy, mhorne
Differential Revision: https://reviews.freebsd.org/D40048
Whilst the former is not breaking, the latter is, and so this will be
followed by a bump to the pmc major version. This will allow the flags
to actually be usable in future, as otherwise we cannot distinguish
uninitialised stack junk from a deliberately-initialised value.
Reviewed by: jhb, mhorne
Differential Revision: https://reviews.freebsd.org/D40049
Since commit ecaecbc7d8, calling
ofw_bus_gen_setup_devinfo() is redundant, as the call to
device_set_ivars() now happens inside simplebus_add_device().
Reviewed by: markj
Approved by: markj (mentor)
Differential Revision: https://reviews.freebsd.org/D40271
This driver update has no corresponding ice_ddp update, and doesn't
contain very many functional changes:
- Some refactoring for future SR-IOV PF support
- Various minor fixes
Signed-off-by: Eric Joyner <erj@FreeBSD.org>
Tested by: jeffrey.e.pieper@intel.com
MFC after: 1 week
Sponsored by: Intel Corporation
Differential Revision: https://reviews.freebsd.org/D39821
This patch fixes TCP connection hangs for 1 rxq and 1 txq without rxcsum
enabled. Documentation for 10G cards and other drivers suggest enabling
rxcsum for RSS and disabling otherwise. When PCSD bit is not set then
fragment checksum and IP identification are reported in the rx
descriptor. When PCSD bit is set then RSS hash value is reported in the
rx descriptor. RSS and RX IPP checksum are mutually exclusive.
Signed-off-by: Eric Joyner <erj@FreeBSD.org>
PR: 268910
Reviewed by: erj@
Tested by: jeffrey.e.pieper@intel.com
MFC after: 1 week
Sponsored by: Intel Corporation
Differential Revision: https://reviews.freebsd.org/D38621
We already do plenty to announce the different CPUs in dmesg. Follow the
ACPI CPU strategy of reporting the first CPU device, but quieting the
rest for non-verbose boot. This cuts down slightly on dmesg output.
Reviewed by: manu, jhb
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D40243
The zone is used solely to provide KVA for mapping BIOs so that we can
pass mapped buffers to VOP_READ and VOP_WRITE. Currently we preallocate
nswbuf/10 bufs for this purpose during boot.
The intent was to limit KVA usage on 32-bit systems, but the
preallocation means that we in fact consumed more KVA than needed unless
one has more than nswbuf/10 (typically 25) vnode-backed MD devices
in existence, which I would argue is the uncommon case.
Meanwhile, all I/O to an MD is handled by a dedicated thread, so we can
instead simply preallocate the KVA region at MD device creation time.
Event: BSDCan 2023
Reviewed by: kib
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D40215
