The vfs.mountroot.timeout tunable and .timeout directive in a mount.conf(5)
file allow specifying a wait timeout for the device(s) hosting the root
filesystem to become usable. The current mechanism for waiting for devices
and detecting their availability can't be used for zfs-hosted filesystems.
See the comment #20 in the PR for some expanded detail on these points.
This change adds retry logic to the actual root filesystem mount. That is,
insted of relying on device availability using device name lookups, it uses
the kernel_mount() call itself to detect whether the filesystem can be
mounted, and loops until it succeeds or the configured timeout is exceeded.
These changes are based on the patch attached to the PR, but it's rewritten
enough that all mistakes belong to me.
PR: 208882
X-MFC after: sufficient testing, and hopefully in time for 11.1
this check on open, but "iscsictl -M", or an iSCSI redirect received by
iscsid(8) could end up with two sessions with the same target name and
portal.
MFC after: 2 weeks
Upstream DTBs don't provide IRQ lines for the RNG. Moreover, harvesting
bytes as often as the RNG interrupt is triggered (87 times per sec) is an
overkill.
For these reasons, get rid of the interrupt mode and make callout mode the
default, with random bits harvested every 4 seconds.
Submitted by: Sylvain Garrigues <sylgar@gmail.com>
Reviewed by: ian, imp, manu, mmel
Approved by: emaste
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D14541
When complete_all() is called there might be multiple waiters. The
current implementation could only handle one waiter. Make sure the
completion is sticky when complete_all() is called to be compatible
with Linux.
Found by: Johannes Lundberg <johalun0@gmail.com>
MFC after: 1 week
Sponsored by: Mellanox Technologies
Sponsored by: Limelight Networks
Move copy-pasted code for RTS/CTS frame allocation into net80211.
While here, add stat / debug message for allocation failures
(copied from run(4)) + return error here in bwn(4).
Reviewed by: adrian
Differential Revision: https://reviews.freebsd.org/D14628
This seems to no be needed on supported hardware as they are cache-coherent,
however this may not be the case on all platforms.
Sponsored by: DARPA, AFRL
rrs - Lets make the LRO code look for true dup-acks and window update acks
fly on through and combine.
rrs - Make the LRO engine a bit more aware of ack-only seq space. Lets not
have it incorrectly wipe out newer acks for older acks when we have
out-of-order acks (common in wifi environments).
jeggleston - LRO eating window updates
Based on all of the above I think we are RFC compliant doing it this way:
https://tools.ietf.org/html/rfc1122
section 4.2.2.16
"Note that TCP has a heuristic to select the latest window update despite
possible datagram reordering; as a result, it may ignore a window update with
a smaller window than previously offered if neither the sequence number nor the
acknowledgment number is increased."
Submitted by: Kevin Bowling <kevin.bowling@kev009.com>
Reviewed by: rstone gallatin
Sponsored by: NetFlix and Limelight Networks
Differential Revision: https://reviews.freebsd.org/D14540
There is a difference when parsing a completion entry between Ethernet
and IB ports. When link layer is Ethernet the bits describe the type of
L3 header in the packet. In the case when link layer is Ethernet and VLAN
header is present the value of SL is equal to the 3 UP bits in the VLAN
header. If VLAN header is not present then the SL is undefined and consumer
of the completion should check if IB_WC_WITH_VLAN is set.
While that, this patch also fills the vlan_id field in the completion if
present.
linux commit 12f8fedef2ec94c783f929126b20440a01512c14
MFC after: 1 week
Sponsored by: Mellanox Technologies
mlx5core.
Do not consider the inability to create a firmware dump fatal, but
inform about the situation and allow the driver to attach. The device
might not implement the needed VSC, or we might not know the layout of
the registers map. In either case, only firmware dump functionality is
limited, the network operations should be fine.
Submitted by: kib@
MFC after: 1 week
Sponsored by: Mellanox Technologies
When the mlx5en(4) driver was converted to using BUSDMA(9) the call to
m_defrag() was moved after the part of the TX routine that strips the
header from the mbuf chain. Before it called m_defrag it first trimmed
off the now-empty mbufs from the start of the chain. This has the side
effect of also removing the head of the chain that has M_PKTHDR set.
m_defrag() will not defrag a chain that does not have M_PKTHDR set,
thus it was effectively never defragging the mbuf chains.
As it turns out, trimming the mbufs in this fashion is unnecessary since
the call to bus_dmamap_load_mbuf_sg doesn't map empty mbufs anyway, so
remove it.
Differential Revision: https://reviews.freebsd.org/D12050
Submitted by: mjoras@
MFC after: 1 week
Sponsored by: Mellanox Technologies
Set and report vport MTU rather than physical MTU,
The driver will set both vport and physical port mtu
and will rely on the query of vport mtu.
SRIOV VFs have to report their MTU to their vport manager (PF),
and this will allow them to work with any MTU they need
without failing the request.
Also for some cases where the PF is not a port owner, PF can
work with MTU less than the physical port mtu if set physical
port mtu didn't take effect.
Based on Linux upstream commit:
cd255efff9baadd654d6160e52d17ae7c568c9d3
Submitted by: Meny Yossefi <menyy@mellanox.com>
MFC after: 1 week
Sponsored by: Mellanox Technologies
Currently the ifnet interface is named mceX, where X is a monotonically
incremented value. If the device is reset due to a fatal error, then the
interface name will change. Using the device unit number will keep the
naming consistent across the reset logic.
Submitted by: Matthew Finlay <matt@mellanox.com>
MFC after: 1 week
Sponsored by: Mellanox Technologies
ConnectX-4/5 devices in mlx5core.
The dump is obtained by reading a predefined register map from the
non-destructive crspace, accessible by the vendor-specific PCIe
capability (VSC). The dump is stored in preallocated kernel memory and
managed by the mlx5tool(8), which communicates with the driver using a
character device node.
The utility allows to store the dump in format
<address> <value>
into a file, to reset the dump content, and to manually initiate the
dump.
A call to mlx5_fwdump() should be added at the places where a dump
must be fetched automatically. The most likely place is right before a
firmware reset request.
Submitted by: kib@
MFC after: 1 week
Sponsored by: Mellanox Technologies
Add the ability to access the vendor specific space gateway in order
to support reading and writing data into the different configuration
domains.
Submitted by: Matthew Finlay <matt@mellanox.com>
MFC after: 1 week
Sponsored by: Mellanox Technologies
Add support for PFC and implement reading the per priority statistics
using the sysctl(8) interface. PFC is used together with VLAN priority
and can be enabled and disabled on a per priority basis.
Global pause frames and PFC are incompatible features and surrounding
logic has been added to warn the user about misconfiguration.
Update relevant mlx5core APIs for PFC configuration.
MFC after: 1 week
Sponsored by: Mellanox Technologies
ECN configuration and statistics is available through a set of sysctl(8)
nodes under sys.class.infiniband.mlx5_X.cong . The ECN configuration
nodes can also be used as loader tunables.
MFC after: 1 week
Sponsored by: Mellanox Technologies
This patch accumulates the following Linux commits:
mlx5_health.c
- 78ccb25861d76a8fc5c678d762180e6918834200
mlx5_core: Fix wrong name in struct
- 171bb2c560f45c0427ca3776a4c8f4e26e559400
mlx5_core: Update health syndromes
- 0144a95e2ad53a40c62148f44fb0c1f9d2a0d1e9
mlx5_core: Use accessor functions to read from device memory
- ac6ea6e81a80172612e0c9ef93720f371b198918
mlx5_core: Use private health thread for each device
- fd76ee4da55abb21babfc69310d321b9cb9a32e0
mlx5_core: Fix internal error detection conditions
- 2241007b3d783cbdbaa78c30bdb1994278b6f9b9
mlx5: Clear health sick bit when starting health poll
- 712bfef60912d91033cb25739f7444d5b8d8c59f
mlx5: Fix version printout in case of health issue
- 89d44f0a6c732db23b219be708e2fe1e03ee4842
mlx5_core: Add pci error handlers to mlx5_core driver
mlx5_cmd.c
- be87544de8df2b1eb34bcb5e32691287d96f9ec4
mlx5_core: Fix async commands return code
- a31208b1e11df334d443ec8cace7636150bb8ce2
mlx5_core: New init and exit flow for mlx5_core
- 020446e01eebc9dbe7eda038e570ab9c7ab13586
mlx5_core: Prepare cmd interface to system errors handling
- 89d44f0a6c732db23b219be708e2fe1e03ee4842
mlx5_core: Add pci error handlers to mlx5_core driver
- 0d834442cc247c7b3f3bd6019512ae03e96dd99a
mlx5: Fix teardown errors that happen in pci error handler
mlx5_main.c
- 5fc7197d3a256d9c5de3134870304b24892a4908
mlx5: Add pci shutdown callback
Submitted by: Matthew Finlay <matt@mellanox.com>
MFC after: 1 week
Sponsored by: Mellanox Technologies
there is a valid reservation. This can trip erroneously when memory
falls within a domain but doesn't have the reservation initialized because
it does not meet size or alignment requirements.
Reported by: pho, mjg
Sponsored by: Netflix, Dell/EMC Isilon
accomplishes a few things:
- Makes NULL an invalid address in the kernel, which is useful for catching
bugs.
- Lays groundwork for radix-tree translation on POWER9, which requires the
direct map be at high memory.
- Similarly lays groundwork for a direct map on 64-bit Book-E.
The new base address is chosen as the base of the fourth radix quadrant
(the minimum kernel address in this translation mode) and because all
supported CPUs ignore at least the first two bits of addresses in real
mode, allowing direct-map addresses to be used in real-mode handlers.
This is required by Linux and is part of the architecture standard
starting in POWER ISA 3, so can be relied upon.
Reviewed by: jhibbits, Breno Leitao
Differential Revision: D14499
Add support for mapping priority to traffic class via sysctl
Submitted by: Slava Shwartsman <slavash@mellanox.com>
MFC after: 1 week
Sponsored by: Mellanox Technologies
- Factor out port speed definitions into new port.h header file,
similarly as done in Linux upstream.
- Correct two existing port speed definitions in mlx5en according to
Linux upstream.
MFC after: 1 week
Sponsored by: Mellanox Technologies
Adding an interface might be done outside the device_attach() routine
and will then cause a panic, due to the VNET not being set.
MFC after: 1 week
Sponsored by: Mellanox Technologies
While there is no immediate leak, if the structure changes underneath
us, there might be in the future.
Submitted by: Domagoj Stolfa <domagoj.stolfa@gmail.com>
MFC After: 1 month
Sponsored by: DARPA/AFRL
The current implementation does not handle timeout in case of command
with callback request, and this can lead to deadlock if the command
doesn't get firmware response. Add delayed callback timeout work
before posting the command to firmware. In case of real firmware
command completion we will cancel the delayed work. In case of
firmware command timeout the callback timeout handler will be called
and it will simulate firmware completion with timeout error.
linux commit 65ee67084589c1783a74b4a4a5db38d7264ec8b5
MFC after: 1 week
Sponsored by: Mellanox Technologies
Call command completion handler in case of timeout when working in
interrupts mode. Avoid flushing the commands workqueue after acquiring
the semaphores to prevent a potential deadlock.
linux commit commit 9cba4ebcf374c3772f6eb61f2d065294b2451b49
MFC after: 1 week
Sponsored by: Mellanox Technologies
illumos/illumos-gate@e9bacc6d1ae9bacc6d1ahttps://www.illumos.org/issues/8984
Consider a directory configured as:
drwx-ws---+ 2 henson cpp 3 Jan 23 12:35 dropbox/
user:henson:rwxpdDaARWcC--:f-i----:allow
owner@:--------------:f-i----:allow
group@:--------------:f-i----:allow
everyone@:--------------:f-i----:allow
owner@:rwxpdDaARWcC--:-di----:allow
group:cpp:-wx-----------:-------:allow
owner@:rwxpdDaARWcC--:-------:allow
A new file created in this directory ends up looking like:
rw-r--r-+ 1 astudent cpp 0 Jan 23 12:39 testfile
user:henson:rw-pdDaARWcC--:------I:allow
owner@:--------------:------I:allow
group@:--------------:------I:allow
everyone@:--------------:------I:allow
owner@:rw-p--aARWcCos:-------:allow
group@:r-----a-R-c--s:-------:allow
everyone@:r-----a-R-c--s:-------:allow
with extraneous group@ and everyone@ entries allowing read access that
shouldn't exist.
Per Albert Lee on the zfs mailing list:
"aclinherit=passthrough/passthrough-x should still
ignore the requested mode when an inheritable ACE for owner@ group@,
or everyone@ is present in the parent directory.
It appears there was an oversight in my fix for
https://www.illumos.org/issues/6764 which made calling zfs_acl_chmod
from zfs_acl_inherit unconditional. I think the parent ACL check for
aclinherit=passthrough needs to be reintroduced in zfs_acl_inherit."
We have a large number of faculty who use dropbox directories like the example
to have students submit projects. All of these directories are now allowing
Reviewed by: Sam Zaydel <szaydel@racktopsystems.com>
Reviewed by: Paul B. Henson <henson@acm.org>
Reviewed by: Prakash Surya <prakash.surya@delphix.com>
Approved by: Matthew Ahrens <mahrens@delphix.com>
Author: Dominik Hassler <hadfl@omniosce.org>
PR: 216886
MFC after: 2 weeks
band aid until a better solution to find the correct interrupt controller
can be found.
While here fix one place in the GICv3 ITS driver where the offset wasn't
correctly applied.
Sponsored by: DARPA, AFRL
Sponsored by: Cavium (Hardware)
When exchanging CM messages the IPv6 scope ID should be ignored
for link local addresses when doing comparisons. Make sure the
scope ID is always set to zero for link local addresses.
MFC after: 1 week
Sponsored by: Mellanox Technologies
It is not enough to cancel delayed work structures before freeing.
Always cancel delayed work synchronously before freeing!
MFC after: 1 week
Sponsored by: Mellanox Technologies
bus provide it with its needed memory resources.
This allows us to use PCIe on the ThunderX2 and, with a previous version
of the patch, on the SoftIron 3000 with ACPI.
Obtained from: ABT Systems Ltd
Sponsored by: The FreeBSD Foundation
Sponsored by: DARPA, AFRL
Sponsored by: Cavium (Hardware)
Differential Revision: https://reviews.freebsd.org/D8767
one physical page. This is in preparation for limiting it further as this
is needed on some hardware, however testing has shown issues with further
restricting the DMAP and ACPI.
Sponsored by: DARPA, AFRL
Sponsored by: Cavium (Hardware)
If g_part_gpt_read() encountered a disk with bad primary and secondary
tables, it could leak memory.
Reported by: Coverity
Sponsored by: Dell EMC Isilon
This was tested by Ben on HP Chromebook 13 G1 with a
Skylake CPU and Sunrise Point-LP I2C controller and by me on
Minnowboard Turbot with Atom E3826 (formerly Bay Trail)
Submitted by: Ben Pye <ben@curlybracket.co.uk>
Reviewed by: gonzo
Obtained from: DragonflyBSD (a4549657 by Imre Vadász)
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D13654
vbus-supply properties may be specified for each PHY. These properties
reference a regulator that we must turn on/off as we turn the PHY on/off.
However, if the usbphy comes up before the regulator in question (as is the
case with GPIO-controlled regulators), then we will fail to grab a handle to
the regulator and control it as the PHY power state changes.
Fix it by just attaching the usbphy driver later. We don't really need it at
RESOURCE, we just need it to be before DEFAULT when ehci/ohci attach. In
particular, this fixes the USB NIC on a board that we don't yet supported-
without this, it will not power on and if_ure cannot attach.
Tested on: various boards [manu]
Tested on: OrangePi R1 [Rap2 (irc)]
Reported by: Rap2 (irc, "Cannot find USB NIC")
correctly for the data contained on each memory page.
There are several components to this change:
* Add a variable to indicate the start of the R/W portion of the
initial memory.
* Stop detecting NX bit support for each AP. Instead, use the value
from the BSP and, if supported, activate the feature on the other
APs just before loading the correct page table. (Functionally, we
already assume that the BSP and all APs had the same support or
lack of support for the NX bit.)
* Set the RW and NX bits correctly for the kernel text, data, and
BSS (subject to some caveats below).
* Ensure DDB can write to memory when necessary (such as to set a
breakpoint).
* Ensure GDB can write to memory when necessary (such as to set a
breakpoint). For this purpose, add new MD functions gdb_begin_write()
and gdb_end_write() which the GDB support code can call before and
after writing to memory.
This change is not comprehensive:
* It doesn't do anything to protect modules.
* It doesn't do anything for kernel memory allocated after the kernel
starts running.
* In order to avoid excessive memory inefficiency, it may let multiple
types of data share a 2M page, and assigns the most permissions
needed for data on that page.
Reviewed by: jhb, kib
Discussed with: emaste
MFC after: 2 weeks
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D14282
separate 2M pages. The binutils default for max-page-size and
common-page-size used to produce this result. By setting these
values, we can nudge lld to also separate these sections into separate
2M pages.
Reviewed by: jhb, kib
Discussed with: emaste
Sponsored by: Netflix
Differential Revision: D14282
Non-NULL timeouts where copied in improperly and could produce failures
due to incompatible data structures.
Reviewed by: kib
MFC after: 3 days
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D14587
Silence a Coverity warning about 'windowSize' being uninitialized.
(Yes, nothing that calls this routine actually uses the windowSize
value. Still, appeasing Coverity is pretty harmless in this case.)
Reported by: Coverity
Reviewed by: Yann Collet
Obtained from: zstd 606374269cf3485972c90b993fbb84dc20da032f
Sponsored by: Dell EMC Isilon
therefore, it should be safe to set the NX bit on the PML4E for the
recursive page table mappings. According to the Intel docs, the effect
of the NX bit should propogate to any page reached through a PML4E which
has the NX bit set.
Reviewed by: kib, markj
MFC after: 2 weeks
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D14333
first available virtual address to a 2MB boundary. After r329071,
create_pagetables() rounds firstaddr up to a 2MB boundary. This ensures
the kernel is mapped in super-pages, which is the point of the logic
in pmap_kmem_choose(). Therefore, it is no longer necessary for
pmap_bootstrap() to round up to the 2MB boundary again.
As pmap_bootstrap() was the only user of pmap_kmem_choose(), we can
delete pmap_kmem_choose().
Reviewed by: kib
MFC after: 2 weeks
X-MFC-with: r329071
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D14355
Creating a UD address handle from user-space or from the kernel-space,
when the link layer is ethernet, requires resolving the remote L3
address into a L2 address. Doing this from the kernel is easy because
the required ARP(IPv4) and ND6(IPv6) address resolving APIs are readily
available. In userspace such an interface does not exist and kernel
help is required.
It should be noted that in an IP-based GID environment, the GID itself
does not contain all the information needed to resolve the destination
IP address. For example information like VLAN ID and SCOPE ID, is not
part of the GID and must be fetched from the GID attributes. Therefore
a source GID should always be referred to as a GID index. Instead of
going through various racy steps to obtain information about the
GID attributes from user-space, this is now all done by the kernel.
This patch optimises the L3 to L2 address resolving using the existing
create address handle uverbs interface, retrieving back the L2 address
as an additional user-space information structure.
This commit combines the following Linux upstream commits:
IB/core: Let create_ah return extended response to user
IB/core: Change ib_resolve_eth_dmac to use it in create AH
IB/mlx5: Make create/destroy_ah available to userspace
IB/mlx5: Use kernel driver to help userspace create ah
IB/mlx5: Report that device has udata response in create_ah
MFC after: 1 week
Sponsored by: Mellanox Technologies
This patch ensures the GID index is always used as a basis of resolving
incoming RDMA connections, as compared to the GID value itself.
Background:
On a per infiniband port basis, the GID identifier is not a unique identifier!
This assumption falls apart when VLAN ID, IPv6 scope ID and RoCE type,
as supported by RoCE v2, is taken into account. This additional
information is stored in the so-called GID attributes and is needed to
correctly identify the destination network interface for an incoming
connection.
Different VLANs are allowed to define the same IPv4 addresses and especially
for the default IPv6 link-local addresses or when using so-called containers
or jails, this is true.
The VNET information for the destination network interface is needed in
order to perform the L2 address lookup in the right Virtual Network Stack
context.
Consequently old functions previously used by RoCE v1, like
rdma_addr_find_smac_by_sgid() are impossible to support, because
there can be multiple identical GIDs associated with the same
infiniband port, and the answer to such a request becomes undefined.
This function has been removed.
MFC after: 1 week
Sponsored by: Mellanox Technologies
Implement the missing pieces in addr_resolve() to support loopback
addresses. IB core will test for the IFF_LOOPBACK flag in the network
interface and treat these devices in a special way.
MFC after: 1 week
Sponsored by: Mellanox Technologies
When a network device is departing, the RoCE GID entries should be
cleared before the default L2 link layer address is freed. Else a NULL
pointer access may happen.
MFC after: 1 week
Sponsored by: Mellanox Technologies
VLANs in ibcore.
IPv6 link local addresses are usually derived from the netdev MAC
address. This is applicable to VLAN devices and its lower netdevice as
well. In such cases the IPv6 link local address is a duplicate of the
default GID.
Now that link local IPv6 addresses based GIDs are supported, allow
adding such GID entries in the GID table.
MFC after: 1 week
Sponsored by: Mellanox Technologies
only use the first driver, however this may change in the future and
hardware exists with multiple ITS devices.
Sponsored by: DARPA, AFRL
Sponsored by: Cavium (Hardware)
Pretty much any other device might need to manipulate a gpio pin during its
probe or attach routines, so these devices must be available as early as
possible.
The gpio device is an interrupt controller, but I didn't choose the
INTERRUPT pass for that reason (it works fine as an interrupt controller as
long as it attaches any time before interrupts are enabled). That just
looked like the right place in the passes to ensure that it attaches before
any type of device that might need gpio pin manipulations.
Rename ACPI_IVRS_HARDWARE_NEW to ACPI_IVRS_HARDWARE_EFRSUP, since new definitions add Extended Feature Register support. Use IvrsType to distinguish three types of IVHD - 0x10(legacy), 0x11 and 0x40(with EFR). IVHD 0x40 is also called mixed type since it supports HID device entries.
Fix 2 coverity bugs reported by cem.
Reported by:jkim, cem
Approved by:grehan
Differential Revision://reviews.freebsd.org/D14501
driver requires interrupts to do transfers, and the drivers for the SPI
devices on the bus quite reasonably expect to be able to do IO while probing
and attaching.
Normally after grabbing the lock it has to be verified we got the right one
to begin with. However, if we are recursing, it must not change thus the
check can be avoided. In particular this avoids a lock read for non-recursing
case which found out the lock was changed.
While here avoid an irq trip of this happens.
Tested by: pho (previous version)
of years since the century, so strip the century out when converting to or
from bcd_clocktime format (the conversion routines will infer century by
pivoting on 70).
The code already pays the cost of reading the lock to obtain the waiters
flag. Checking whether there is more than one reader is not a problem and
avoids dirtying the line.
This also fixes a small corner case: if waiters were to show up between
reading the flag and upgrading the lock, the operation would fail even
though it should not. No correctness change here though.
If there were exactly rowner_retries/asx_retries (by default: 10) transitions
between read and write state and the waiters still did not get the lock, the
next owner -> reader transition would result in the code correctly falling
back to turnstile/sleepq where it would incorrectly think it was waiting
for a writer and decide to leave turnstile/sleepq to loop back. From this
point it would take ts/sq trips until the lock gets released.
The bug sometimes manifested itself in stalls during -j 128 package builds.
Refactor the code to fix the bug, while here remove some of the gratituous
differences between rw and sx locks.
The main routine takes 8 args, 3 of which are almost the same for most uses.
This in particular pushes it above the limit of 6 arguments passable through
registers on amd64 making it impossible to tail call.
This is a prerequisite for further cleanups.
Tested by: pho
the jtag port, so that a tty is not created for it.
This is based on information in the PR and from the vendor website. When
the PR was first opened we had no facility for flagging the jtag ports. I
stumbled across the still-open PR with the idea of closing it, and noticed
that this wee update was needed.
PR: 175893
Before executing a command in a ddb script ddb prints an information
line of the form:
db:1:my-script> command
where 1 is the script's depth level, "my-script" is the scipt's name,
and "command" is the current command in the script.
db_script_exec() uses its 'scriptname' parameter to produce that string.
In the case when db_script_exec() is called from db_run_cmd() the
argument points to db_tok_string that is a global variable used for
command parsing. So, its value changes with every command executed.
This commit changes the code to use the script's name stored in
ds_scriptname to print the line.
MFC after: 2 weeks
instead of pause() in the msleep() function to avoid rounding errors when
converting delay values forth and back. Add a guard for a delay value
of zero milliseconds which is undefined.
MFC after: 1 week
Requested by: Johannes Lundberg <johalun0@gmail.com>
Sponsored by: Mellanox Technologies
It would have been on an actual named pass before, but none were really
appropriate in name. Move it to the recently created SUPPORTDEV pass, which
perfectly describes it and keeps it in the right order.
Getting regulator is good, enabling them is better.
When the mmc stack decide to change the voltage for IO, don't
change the main vcc of the sd/mmc, only the io vcc.
AXP803 and AXP813/818 are very similar, only two regulators differs.
AXP803 is the companion chip for A64/R18
AXP813 is the companion chip for A83T
AXP818 is the companion chip for H8 (~A83T)
Add support for all regulators found in both of them.
Since that change the system call stack traces look like this:
...
sys___sysctl() at sys___sysctl+0x5f/frame 0xfffffe0028e13ac0
amd64_syscall() at amd64_syscall+0x79b/frame 0xfffffe0028e13bf0
fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe0028e13bf0
So, db_nextframe() stopped recognizing the system call frame.
This commit should fix that.
Reviewed by: kib
MFC after: 4 days
The reason for this new pass is :
The earlier pass names are really specific (interrupt, timer, scheduler etc ..)
and making a driver that other device driver (that attach at DEFAULT pass)
needs probe at earlier pass can be confiusing. We can live with GPIO driver
at INTERRUPT pass because they are often an interrupt controller too but having
a usb phy driver probed at RESOURCES (or SCHEDULER for example) is silly.
The number was choosen to have a lot of margin if we want to introduce other
pass in the futur.
Reviewed by: ian, imp, kevans
Differential Revision: https://reviews.freebsd.org/D14568
imcsmb(4) provides smbus(4) support for the SMBus controller functionality
in the integrated Memory Controllers (iMCs) embedded in Intel Sandybridge-
Xeon, Ivybridge-Xeon, Haswell-Xeon, and Broadwell-Xeon CPUs. Each CPU
implements one or more iMCs, depending on the number of cores; each iMC
implements two SMBus controllers (iMC-SMBs).
*** IMPORTANT NOTE ***
Because motherboard firmware or the BMC might try to use the iMC-SMBs for
monitoring DIMM temperatures and/or managing an NVDIMM, the driver might
need to temporarily disable those functions, or take a hardware interlock,
before using the iMC-SMBs. Details on how to do this may vary from board to
board, and the procedure may be proprietary. It is strongly suggested that
anyone wishing to use this driver contact their motherboard vendor, and
modify the driver as described in the manual page and in the driver itself.
(For what it's worth, the driver as-is has been tested on various SuperMicro
motherboards.)
Reviewed by: avg, jhb
MFC after: 1 week
Relnotes: yes
Sponsored by: Panasas
Differential Revision: https://reviews.freebsd.org/D14447
Discussed with: avg, ian, jhb
Tested by: allanjude (previous version), Panasas
POSIX explicitly states that the application must declare union semun.
This makes no sense, but it is what it is. This brings us into line
with Linux, MacOS/Darwin, and NetBSD.
In a ports exp-run a moderate number of ports fail due to a lack of
approprate autotools-like discovery mechanisms or local patches. A
commit to address them will follow shortly.
PR: 224300, 224443 (exp-run)
Reviewed by: emaste, jhb, kib
Exp-run by: antoine
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D14492
This deliberately breaks the API in preperation for future syscall
revisions which will remove these nonstandard members.
In an exp-run a single port (devel/qemu-user-static) was found to
use them which it did becuase it emulates system calls. This has
been fixed in the ports tree.
PR: 224443 (exp-run)
Reviewed by: kib, jhb (previous version)
Exp-run by: antoine
Sponsored by: DARPA, AFRP
Differential Revision: https://reviews.freebsd.org/D14490
copyout(9) family.
The addresses are user-controllable, and if the process ABI allows
mapping at zero, then the zero address is meaningful, contradicting
the definition of _Nonnull. In any case, it does not require any
special code to handle NULL udaddr.
It is not clear if __restrict makes sense as well, since kaddr and
udaddr point to different address spaces, so equal numeric values of
the pointers do not imply aliasing and a legitimate. But leave it for
later.
copyinstr(9) does not have its user address argument annotated.
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
delayed_work in the LinuxKPI. This allows the timer_pending() function
macro to be used with delayed work structures.
No functional nor structural change.
MFC after: 1 week
Submitted by: Johannes Lundberg <johalun0@gmail.com>
Sponsored by: Mellanox Technologies
Sponsored by: Limelight Networks
to fix the memory leak that I introduced in r328426. Instead of
trying to clear up the possible memory leak in all the clients, I
ensure that it gets cleaned up in the source (e.g., ffs_sbget ensures
that memory is always freed if it returns an error).
The original change in r328426 was a bit sparse in its description.
So I am expanding on its description here (thanks cem@ and rgrimes@
for your encouragement for my longer commit messages).
In preparation for adding check hashing to superblocks, r328426 is
a refactoring of the code to get the reading/writing of the superblock
into one place. Unlike the cylinder group reading/writing which
ends up in two places (ffs_getcg/ffs_geom_strategy in the kernel
and cgget/cgput in libufs), I have the core superblock functions
just in the kernel (ffs_sbfetch/ffs_sbput in ffs_subr.c which is
already imported into utilities like fsck_ffs as well as libufs to
implement sbget/sbput). The ffs_sbfetch and ffs_sbput functions
take a function pointer to do the actual I/O for which there are
four variants:
ffs_use_bread / ffs_use_bwrite for the in-kernel filesystem
g_use_g_read_data / g_use_g_write_data for kernel geom clients
ufs_use_sa_read for the standalone code (stand/libsa/ufs.c
but not stand/libsa/ufsread.c which is size constrained)
use_pread / use_pwrite for libufs
Uses of these interfaces are in the UFS filesystem, geoms journal &
label, libsa changes, and libufs. They also permeate out into the
filesystem utilities fsck_ffs, newfs, growfs, clri, dump, quotacheck,
fsirand, fstyp, and quot. Some of these utilities should probably be
converted to directly use libufs (like dumpfs was for example), but
there does not seem to be much win in doing so.
Tested by: Peter Holm (pho@)
Add I2C OPAL driver and a set of dummy-ones to allow
all I2C things on Power8 to attach.
TODO: better async token management
Submitted by: Wojciech Macek <wma@semihalf.com>
Obtained from: Semihalf
Sponsored by: IBM, QCM Technologies
Many licenses on Linuxolator files contained small variations from the
standard FreeBSD license text. To avoid license proliferation switch to
the standard 2-clause FreeBSD license for those files where I have
permission from each of the listed copyright holders. Additional files
still waiting on permission from others are listed in review D14210.
Approved by: dchagin, rdivacky, sos
MFC after: 1 week
MFC with: r329370
Sponsored by: The FreeBSD Foundation
LinuxKPI to comply more with Linux. This fixes an issue when these functions
are used in waiting loops.
MFC after: 1 week
Sponsored by: Mellanox Technologies
In the weird case where the user-provided buffer was zero bytes, we could break
out of PCIOCGETCONF and return without initializing error. In this case,
initialize error to zero -- we successfully did nothing, as requested.
Reported by: Coverity
Sponsored by: Dell EMC Isilon
'status' array passed to get_mouse_status() is usually uninitialized by
callers.
Fully populating it with values in get_mouse_status() can fail due to
read_aux_data().
Additionally, nothing in API constrains 'len' to be >= 3. In practice,
every caller passes three, so perhaps that argument should just be removed.
Refactoring is a larger change, though.
Remove use of potentially uninitialized values by:
1. Only printing 3 debug statuses if the passed array was at least
'len' >= 3;
2. Populating 'status' array up to first three elements, if read_aux_data()
failed.
No functional change intended.
Reported by: Coverity
Sponsored by: Dell EMC Isilon
Coverity cannot determine that handle_written_indirdep() does not access
uninitialized 'sbp' when flags argument is zero.
So, simply move the initialization slightly sooner to silence the warning.
No functional change.
Reported by: Coverity
Sponsored by: Dell EMC Isilon
6.0 spec 6.4.3.5 bit 0 is ignored on QWord, DWord, and Word Address Space
Descriptors, but not Extended Address Space Descriptors.
Reviewed by: jhb
Sponsored by: DARPA, AFRL
Sponsored by: Cavium (Hardware)
Differential Revision: https://reviews.freebsd.org/D14516
It calls OF_* functions to check if it needs to implement workarounds.
This may not be the case on arm64 where we support both FDT and ACPI.
Fix this by checking if we are booting on FDT before calling these checks.
Reviewed by: ian
Sponsored by: DARPA, AFRL
Sponsored by: Cavium (Hardware)
Differential Revision: https://reviews.freebsd.org/D14515
Retpoline is a compiler-based mitigation for CVE-2017-5715, also known
as Spectre V2, that protects against speculative execution branch target
injection attacks.
In this commit it is disabled by default, but will be changed in a
followup commit.
Reviewed by: bdrewery (previous version)
MFC after: 3 days
Security: CVE-2017-5715
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D14242
for the minimum length.
This fixes a bug where cookies of length 2 bytes (which is smaller
than the minimum length of 4) is provided by the server.
Sponsored by: Netflix, Inc.
Page daemon threads for other domains show up in ps(1) output as
"pagedaemon/domN", so let that be the case for domain 0 as well.
Submitted by: Kevin Bowling <kevin.bowling@kev009.com>
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D14518
Those operations, zfsctl_snapdir_readdir and zfsctl_snapdir_getattr,
access the filesystem's objset and it can be unstable during operations
like receive and rollback.
MFC after: 2 weeks
A reservation granule on PowerPC is a cache line.
On e500mc and derivatives a cacheline size is 64 bytes, not 32. Allocate
the maximum size permitted, but only utilize the size that is needed. On
e500v1 and e500v2 the reservation granule will still be 32 bytes.
Chain frames required to satisfy all 2K of declared I/Os of 128KB each take
more then a megabyte of a physical memory, all of which existing code tries
allocate as physically contiguous. This patch removes that physical
contiguousness requirement, leaving only virtual contiguousness. I was
thinking about other ways of allocation, but the less granular allocation
becomes, the bigger is the overhead and/or complexity, reaching about 100%
overhead if allocate each frame separately.
The patch also bumps the chain frames hard limit from 2K to 16K. It is more
than enough for the case of default REQ_FRAMES and MAXPHYS (the drivers will
allocate less than that automatically), while in case of increased MAXPHYS
it will control maximal memory usage.
Sponsored by: iXsystems, Inc.
Differential Revision: https://reviews.freebsd.org/D14420
to what other arches (all except riscv and armv4/5) do.
Submitted by: Hyun Hwang <hyun@caffeinated.codes>
Differential Revision: https://reviews.freebsd.org/D14465
After the auth key is copied into the ipad[] array, any remaining bytes
are cleared to zero (in case the key is shorter than one block size).
The full block size was used as the length of the zero rather than the
size of the remaining ipad[]. In practice this overflow was harmless as
it could only clear bytes in the following opad[] array which is
initialized with a copy of ipad[] in the next statement.
Sponsored by: Chelsio Communications
The parameters describe how much of the adapter's memory is reserved for
storing TLS keys. The 'meminfo' sysctl now lists this region of adapter
memory as 'TLS keys' if present.
Sponsored by: Chelsio Communications
* If compiled with EXT_RESOURCES look up the "biu" and "ciu" clocks in
the DT
* Don't use custom property "bus-frequency" but the standard one
"clock-frequency"
* Use the DT property max-frequency and fall back to 200Mhz if it don't exists
* Add more mmc caps suported by the controller
* Always ack all interrupts
* Subclassed driver can supply an update_ios so they can handle update
the clocks accordingly
* Take care of the DDR bit in update_ios (no functional change since we
do not support voltage change for now)
* Make use of the FDT bus-width property
* rk_cru is a cru driver that needs to be subclassed by
the real CRU driver
* rk_clk_pll handle the pll type clock on RockChip SoC, it's only read
only for now.
* rk_clk_composite handle the different composite clock types (with gate,
with mux etc ...)
* rk_clk_gate handle the RockChip gates
* rk_clk_mux handle the RockChip muxes (unused for now)
* Only clocks for supported devices are supported for now, the rest will be
added when driver support comes
* The assigned-clock* property are not handled for now so we rely a lot on the
bootloader to setup some initial values for some clocks.
Unlike the existing GLA2GPA ioctl, GLA2GPA_NOFAULT does not modify
the guest. In particular, it does not inject any faults or modify
PTEs in the guest when performing an address space translation.
This is used by bhyve's debug server to read and write memory for
the remote debugger.
Reviewed by: grehan
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D14075
`iconv_sysctl_add` from `sys/libkern/iconv.c` incorrectly limits the
size of user strings, such that several out of bounds reads could have
been possible.
static int
iconv_sysctl_add(SYSCTL_HANDLER_ARGS)
{
struct iconv_converter_class *dcp;
struct iconv_cspair *csp;
struct iconv_add_in din;
struct iconv_add_out dout;
int error;
error = SYSCTL_IN(req, &din, sizeof(din));
if (error)
return error;
if (din.ia_version != ICONV_ADD_VER)
return EINVAL;
if (din.ia_datalen > ICONV_CSMAXDATALEN)
return EINVAL;
if (strlen(din.ia_from) >= ICONV_CSNMAXLEN)
return EINVAL;
if (strlen(din.ia_to) >= ICONV_CSNMAXLEN)
return EINVAL;
if (strlen(din.ia_converter) >= ICONV_CNVNMAXLEN)
return EINVAL;
...
Since the `din` struct is directly copied from userland, there is no
guarantee that the strings supplied will be NULL terminated. The
`strlen` calls could continue reading past the designated buffer
sizes.
Declaration of `struct iconv_add_in` is found in `sys/sys/iconv.h`:
struct iconv_add_in {
int ia_version;
char ia_converter[ICONV_CNVNMAXLEN];
char ia_to[ICONV_CSNMAXLEN];
char ia_from[ICONV_CSNMAXLEN];
int ia_datalen;
const void *ia_data;
};
Our strings are followed by the `ia_datalen` member, which is checked
before the `strlen` calls:
if (din.ia_datalen > ICONV_CSMAXDATALEN)
Since `ICONV_CSMAXDATALEN` has value `0x41000` (and is `unsigned`),
this ensures that `din.ia_datalen` contains at least 1 byte of 0, so
it is not possible to trigger a read out of bounds of the `struct`
however, this code is fragile and could introduce subtle bugs in the
future if the `struct` is ever modified.
PR: 207302
Submitted by: CTurt <cturt@hardenedbsd.org>
Reported by: CTurt <cturt@hardenedbsd.org>
Reviewed by: jhb, vangyzen
MFC after: 1 week
Sponsored by: Dell EMC
Differential Revision: https://reviews.freebsd.org/D14521
libfdt now provides methods to iterate through subnodes and properties in a
convenient fashion.
Replace our ofw_fdt_{peer,child} searches with calls to their corresponding
libfdt methods. Rework ofw_fdt_nextprop to use the
fdt_for_each_property_offset macro, making it even more obvious what it's
doing.
No functional change intended.
Reviewed by: nwhitehorn
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D14225
We can reach that point with IRQs disabled, and calling ast() with IRQs
disabled can lead to a deadlock.
This should fix the freezes on arm64 under load.
Reviewed by: andrew
The conditional compilation support is now centralized in
tcp_fastopen.h and tcp_var.h. This doesn't provide the minimum
theoretical code/data footprint when TCP_RFC7413 is disabled, but
nearly all the TFO code should wind up being removed by the optimizer,
the additional footprint in the syncache entries is a single pointer,
and the additional overhead in the tcpcb is at the end of the
structure.
This enables the TCP_RFC7413 kernel option by default in amd64 and
arm64 GENERIC.
Reviewed by: hiren
MFC after: 1 month
Sponsored by: Limelight Networks
Differential Revision: https://reviews.freebsd.org/D14048
[RFC7413]. It also includes a pre-shared key mode of operation in
which the server requires the client to be in possession of a shared
secret in order to successfully open TFO connections with that server.
The names of some existing fastopen sysctls have changed (e.g.,
net.inet.tcp.fastopen.enabled -> net.inet.tcp.fastopen.server_enable).
Reviewed by: tuexen
MFC after: 1 month
Sponsored by: Limelight Networks
Differential Revision: https://reviews.freebsd.org/D14047
The keylist lock was not being acquired early enough. The only side
effect of this bug is that the effective add time of a new key could
be slightly later than it would have been otherwise, as seen by a TFO
client.
Reviewed by: tuexen
MFC after: 1 month
Sponsored by: Limelight Networks
Differential Revision: https://reviews.freebsd.org/D14046
the Server Base System Architecture to be a subset of the pl011 r1p5. As
we don't use the removed features it is safe to just attach to the existing
driver as is.
Sponsored by: DARPA, AFRL
(using "boot -d" at the loader propmt or setting boot_ddb in loader.conf).
Submitted by: Thomas Skibo <thomasskibo@yahoo.com>
Differential Revision: https://reviews.freebsd.org/D14428
the iicbus module for FDT-based systems.
The primary motivation for this is that host controller drivers which
declare DRIVER_MODULE(ofw_iicbus, thisdriver, etc, etc) now only need a
single MODULE_DEPEND(thisdriver, ofw_iicbus) for runtime linking to resolve
all the symbols. With ofw_iicbus and iicbus in separate modules, drivers
would need to declare a MODULE_DEPEND() on both, because symbol lookup is
non-recursive through the dependency chain. Requiring a driver to have
MODULE_DEPENDS() on both amounts to requiring the drivers to understand the
kobj inheritence details of how ofw_iicbus is implemented, which seems like
something they shouldn't have to know (and could even change some day).
Also, this is somewhat analogous to how the drivers get built when compiled
into the kernel. You don't have to ask for ofw_iicbus separately, it just
gets built in along with iicbus when option FDT is in effect.
The first call is used to gauge how much spaces is needed. Just computing
the size instead of generating the output allows to not take the proctree
lock.
It gets called by dmu_buf_init_user, which is inline but not static. So it
needs global linkage itself.
Reported by: GCC-6
MFC after: 17 days
X-MFC-With: 329722
If the user configures a states_hashsize or source_nodes_hashsize value we may
not have enough memory to allocate this. This used to lock up pf, because these
allocations used M_WAITOK.
Cope with this by attempting the allocation with M_NOWAIT and falling back to
the default sizes (with M_WAITOK) if these fail.
PR: 209475
Submitted by: Fehmi Noyan Isi <fnoyanisi AT yahoo.com>
MFC after: 3 weeks
Differential Revision: https://reviews.freebsd.org/D14367
With r329882, in the absence of a free page shortage we would only take
len(PQ_INACTIVE)+len(PQ_LAUNDRY) into account when deciding whether to
aggressively scan PQ_ACTIVE. Previously we would also include the
number of free pages in this computation, ensuring that we wouldn't scan
PQ_ACTIVE with plenty of free memory available. The change in behaviour
was most noticeable immediately after booting, when PQ_INACTIVE and
PQ_LAUNDRY are nearly empty.
Reviewed by: jeff
