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Currently the attribute cap.max_send_wr and cap.max_recv_wr
sent from user-space during create QP are the provider computed
SQ/RQ depth as opposed to raw values passed from application.
This inhibits computation of an accurate value for max_send_wr
and max_recv_wr for this QP in the kernel which matches the value
returned in user create QP. Also these capabilities needs to be
reported from the driver in query QP.
Add support by extending the ABI to allow the raw cap.max_send_wr and
cap.max_recv_wr to be passed from user-space, while keeping compatibility
for the older scheme.
The internal HW depth and shift needed for the WQs needs to be computed
now for both kernel and user-mode QPs. Add new helpers to assist with this:
irdma_uk_calc_depth_shift_sq, irdma_uk_calc_depth_shift_rq and
irdma_uk_calc_depth_shift_wq.
Consolidate all the user mode QP setup into a new function
irdma_setup_umode_qp which keeps it with its counterpart
irdma_setup_kmode_qp.
Signed-off-by: Youvaraj Sagar <youvaraj.sagar@intel.com>
Signed-off-by: Sindhu Devale <sindhu.devale@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Link: https://lore.kernel.org/r/20230725155525.1081-2-shiraz.saleem@intel.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Move PCI Vendor and Device ID of ASIX AX99100 PCIe to Multi I/O
Controller to pci_ids.h for its serial and parallel port driver
support in subsequent patches.
Signed-off-by: Jiaqing Zhao <jiaqing.zhao@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Link: https://lore.kernel.org/r/20230724083933.3173513-3-jiaqing.zhao@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Pull smb client fixes from Steve French:
"Four small SMB3 client fixes:
- two reconnect fixes (to address the case where non-default
iocharset gets incorrectly overridden at reconnect with the
default charset)
- fix for NTLMSSP_AUTH request setting a flag incorrectly)
- Add missing check for invalid tlink (tree connection) in ioctl"
* tag '6.5-rc3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: add missing return value check for cifs_sb_tlink
smb3: do not set NTLMSSP_VERSION flag for negotiate not auth request
cifs: fix charset issue in reconnection
fs/nls: make load_nls() take a const parameter
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git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:
- Fix to /sys/kernel/tracing/per_cpu/cpu*/stats read and entries.
If a resize shrinks the buffer it clears the read count to notify
readers that they need to reset. But the read count is also used for
accounting and this causes the numbers to be off. Instead, create a
separate variable to use to notify readers to reset.
- Fix the ref counts of the "soft disable" mode. The wrong value was
used for testing if soft disable mode should be enabled or disable,
but instead, just change the logic to do the enable and disable in
place when the SOFT_MODE is set or cleared.
- Several kernel-doc fixes
- Removal of unused external declarations
* tag 'trace-v6.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing: Fix warning in trace_buffered_event_disable()
ftrace: Remove unused extern declarations
tracing: Fix kernel-doc warnings in trace_seq.c
tracing: Fix kernel-doc warnings in trace_events_trigger.c
tracing/synthetic: Fix kernel-doc warnings in trace_events_synth.c
ring-buffer: Fix kernel-doc warnings in ring_buffer.c
ring-buffer: Fix wrong stat of cpu_buffer->read
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The transitional helpers were removed a long time ago, but some
references stuck. Remove them.
Fixes: 21ebe615c16994f3 ("drm: Remove transitional helpers")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ad4a2f1f9fa7da083132f6c35469c77a3f9e2f0e.1689779916.git.geert+renesas@glider.be
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Fix a misspelling of "rendez-vous".
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/084bf178dd676a4f07933eb9fcd04d3e30a779ba.1689600209.git.geert+renesas@glider.be
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Fix misspellings of "semaphore".
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/8b0542c12a2427f34a792c41ac2d2a2922874bfa.1689600102.git.geert+renesas@glider.be
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sk->sk_mark is often read while another thread could change the value.
Fixes: 4a19ec5800fc ("[NET]: Introducing socket mark socket option.")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch fixes a misuse of IP{6}CB(skb) in GRO, while calling to
`udp6_lib_lookup2` when handling udp tunnels. `udp6_lib_lookup2` fetch the
device from CB. The fix changes it to fetch the device from `skb->dev`.
l3mdev case requires special attention since it has a master and a slave
device.
Fixes: a6024562ffd7 ("udp: Add GRO functions to UDP socket")
Reported-by: Gal Pressman <gal@nvidia.com>
Signed-off-by: Richard Gobert <richardbgobert@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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commit 157576d55233 ("misc: remove atmel_tclib")
left behind this.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20230725141105.26904-1-yuehaibing@huawei.com
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
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This is not used since commit 3a755cd8b7c6 ("bonding: add new option lacp_active")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://lore.kernel.org/r/20230726143816.15280-1-yuehaibing@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Remove option having i2c client contain raw gpio number instead of proper
IRQ number. There are no users of this facility in mainline and it will
allow cleaning up the driver code with regard to wakeup handling, etc.
Link: https://lore.kernel.org/r/20230724053024.352054-1-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull hotfixes from Andrew Morton:
"11 hotfixes. Five are cc:stable and the remainder address post-6.4
issues or aren't considered serious enough to justify backporting"
* tag 'mm-hotfixes-stable-2023-07-28-15-52' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mm/memory-failure: fix hardware poison check in unpoison_memory()
proc/vmcore: fix signedness bug in read_from_oldmem()
mailmap: update remaining active codeaurora.org email addresses
mm: lock VMA in dup_anon_vma() before setting ->anon_vma
mm: fix memory ordering for mm_lock_seq and vm_lock_seq
scripts/spelling.txt: remove 'thead' as a typo
mm/pagewalk: fix EFI_PGT_DUMP of espfix area
shmem: minor fixes to splice-read implementation
tmpfs: fix Documentation of noswap and huge mount options
Revert "um: Use swap() to make code cleaner"
mm/damon/core-test: initialise context before test in damon_test_set_attrs()
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control fixes from Rafael Wysocki:
"Constify thermal_zone_device_register() parameters, which was omitted
by mistake, and fix a double free on thermal zone unregistration in
the generic DT thermal driver (Ahmad Fatoum)"
* tag 'thermal-6.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal: of: fix double-free on unregistration
thermal: core: constify params in thermal_zone_device_register
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"Fix the arming of wakeup IRQs in the generic wakeup IRQ code
(wakeirq), drop unused functions from it and fix up a driver using it
and trying to work around the IRQ arming issue in a questionable way
(Johan Hovold)"
* tag 'pm-6.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
serial: qcom-geni: drop bogus runtime pm state update
PM: sleep: wakeirq: drop unused enable helpers
PM: sleep: wakeirq: fix wake irq arming
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commit 6a9c981b1e96 ("ftrace: Remove unused function ftrace_arch_read_dyn_info()")
left ftrace_arch_read_dyn_info() extern declaration.
And commit 1d74f2a0f64b ("ftrace: remove ftrace_ip_converted()")
leave ftrace_ip_converted() declaration.
Link: https://lore.kernel.org/linux-trace-kernel/20230725134808.9716-1-yuehaibing@huawei.com
Cc: <mhiramat@kernel.org>
Cc: <mark.rutland@arm.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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This commit adds support for enabling IP defrag using pre-existing
netfilter defrag support. Basically all the flag does is bump a refcnt
while the link the active. Checks are also added to ensure the prog
requesting defrag support is run _after_ netfilter defrag hooks.
We also take care to avoid any issues w.r.t. module unloading -- while
defrag is active on a link, the module is prevented from unloading.
Signed-off-by: Daniel Xu <dxu@dxuuu.xyz>
Reviewed-by: Florian Westphal <fw@strlen.de>
Link: https://lore.kernel.org/r/5cff26f97e55161b7d56b09ddcf5f8888a5add1d.1689970773.git.dxu@dxuuu.xyz
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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We want to be able to enable/disable IP packet defrag from core
bpf/netfilter code. In other words, execute code from core that could
possibly be built as a module.
To help avoid symbol resolution errors, use glue hooks that the modules
will register callbacks with during module init.
Signed-off-by: Daniel Xu <dxu@dxuuu.xyz>
Reviewed-by: Florian Westphal <fw@strlen.de>
Link: https://lore.kernel.org/r/f6a8824052441b72afe5285acedbd634bd3384c1.1689970773.git.dxu@dxuuu.xyz
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Chuck Lever says:
====================
In-kernel support for the TLS Alert protocol
IMO the kernel doesn't need user space (ie, tlshd) to handle the TLS
Alert protocol. Instead, a set of small helper functions can be used
to handle sending and receiving TLS Alerts for in-kernel TLS
consumers.
====================
Merged on top of a tag in case it's needed in the NFS tree.
Link: https://lore.kernel.org/r/169047923706.5241.1181144206068116926.stgit@oracle-102.nfsv4bat.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add observability for the new TLS Alert infrastructure.
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://lore.kernel.org/r/169047947409.5241.14548832149596892717.stgit@oracle-102.nfsv4bat.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Kernel TLS consumers can replace common TLS Alert parsing code with
these helpers.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://lore.kernel.org/r/169047942074.5241.13791647439480672048.stgit@oracle-102.nfsv4bat.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This helper sends an alert only if a TLS session was established.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://lore.kernel.org/r/169047936730.5241.618595693821012638.stgit@oracle-102.nfsv4bat.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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I'm about to add support for kernel handshake API consumers to send
TLS Alerts, so introduce the needed protocol definitions in the new
header tls_prot.h.
This presages support for Closure alerts. Also, support for alerts
is a pre-requite for handling session re-keying, where one peer will
signal the need for a re-key by sending a TLS Alert.
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://lore.kernel.org/r/169047934064.5241.8377890858495063518.stgit@oracle-102.nfsv4bat.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Kernel TLS consumers will need definitions of various parts of the
TLS protocol, but often do not need the function declarations and
other infrastructure provided in <net/tls.h>.
Break out existing standardized protocol elements into a separate
header, and make room for a few more elements in subsequent patches.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://lore.kernel.org/r/169047931374.5241.7713175865185969309.stgit@oracle-102.nfsv4bat.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
mlx5-updates-2023-07-24
1) Generalize devcom implementation to be independent of number of ports
or device's GUID.
2) Save memory on command interface statistics.
3) General code cleanups
* tag 'mlx5-updates-2023-07-24' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux:
net/mlx5: Give esw_offloads_load/unload_rep() "mlx5_" prefix
net/mlx5: Make mlx5_eswitch_load/unload_vport() static
net/mlx5: Make mlx5_esw_offloads_rep_load/unload() static
net/mlx5: Remove pointless devlink_rate checks
net/mlx5: Don't check vport->enabled in port ops
net/mlx5e: Make flow classification filters static
net/mlx5e: Remove duplicate code for user flow
net/mlx5: Allocate command stats with xarray
net/mlx5: split mlx5_cmd_init() to probe and reload routines
net/mlx5: Remove redundant cmdif revision check
net/mlx5: Re-organize mlx5_cmd struct
net/mlx5e: E-Switch, Allow devcom initialization on more vports
net/mlx5e: E-Switch, Register devcom device with switch id key
net/mlx5: Devcom, Infrastructure changes
net/mlx5: Use shared code for checking lag is supported
====================
Link: https://lore.kernel.org/r/20230727183914.69229-1-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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accept_ra_min_rtr_lft only considered the lifetime of the default route
and discarded entire RAs accordingly.
This change renames accept_ra_min_rtr_lft to accept_ra_min_lft, and
applies the value to individual RA sections; in particular, router
lifetime, PIO preferred lifetime, and RIO lifetime. If any of those
lifetimes are lower than the configured value, the specific RA section
is ignored.
In order for the sysctl to be useful to Android, it should really apply
to all lifetimes in the RA, since that is what determines the minimum
frequency at which RAs must be processed by the kernel. Android uses
hardware offloads to drop RAs for a fraction of the minimum of all
lifetimes present in the RA (some networks have very frequent RAs (5s)
with high lifetimes (2h)). Despite this, we have encountered networks
that set the router lifetime to 30s which results in very frequent CPU
wakeups. Instead of disabling IPv6 (and dropping IPv6 ethertype in the
WiFi firmware) entirely on such networks, it seems better to ignore the
misconfigured routers while still processing RAs from other IPv6 routers
on the same network (i.e. to support IoT applications).
The previous implementation dropped the entire RA based on router
lifetime. This turned out to be hard to expand to the other lifetimes
present in the RA in a consistent manner; dropping the entire RA based
on RIO/PIO lifetimes would essentially require parsing the whole thing
twice.
Fixes: 1671bcfd76fd ("net: add sysctl accept_ra_min_rtr_lft")
Cc: Lorenzo Colitti <lorenzo@google.com>
Signed-off-by: Patrick Rohr <prohr@google.com>
Reviewed-by: Maciej Żenczykowski <maze@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20230726230701.919212-1-prohr@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Reap the benefits of easier iteration thanks to the xarray.
Convert just the genetlink ones, those are easier to test.
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/20230726185530.2247698-3-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Iterating over the netdev hash table for netlink dumps is hard.
Dumps are done in "chunks" so we need to save the position
after each chunk, so we know where to restart from. Because
netdevs are stored in a hash table we remember which bucket
we were in and how many devices we dumped.
Since we don't hold any locks across the "chunks" - devices may
come and go while we're dumping. If that happens we may miss
a device (if device is deleted from the bucket we were in).
We indicate to user space that this may have happened by setting
NLM_F_DUMP_INTR. User space is supposed to dump again (I think)
if it sees that. Somehow I doubt most user space gets this right..
To illustrate let's look at an example:
System state:
start: # [A, B, C]
del: B # [A, C]
with the hash table we may dump [A, B], missing C completely even
tho it existed both before and after the "del B".
Add an xarray and use it to allocate ifindexes. This way we
can iterate ifindexes in order, without the worry that we'll
skip one. We may still generate a dump of a state which "never
existed", for example for a set of values and sequence of ops:
System state:
start: # [A, B]
add: C # [A, C, B]
del: B # [A, C]
we may generate a dump of [A], if C got an index between A and B.
System has never been in such state. But I'm 90% sure that's perfectly
fine, important part is that we can't _miss_ devices which exist before
and after. User space which wants to mirror kernel's state subscribes
to notifications and does periodic dumps so it will know that C exists
from the notification about its creation or from the next dump
(next dump is _guaranteed_ to include C, if it doesn't get removed).
To avoid any perf regressions keep the hash table for now. Most
net namespaces have very few devices and microbenchmarking 1M lookups
on Skylake I get the following results (not counting loopback
to number of devs):
#devs | hash | xa | delta
2 | 18.3 | 20.1 | + 9.8%
16 | 18.3 | 20.1 | + 9.5%
64 | 18.3 | 26.3 | +43.8%
128 | 20.4 | 26.3 | +28.6%
256 | 20.0 | 26.4 | +32.1%
1024 | 26.6 | 26.7 | + 0.2%
8192 |541.3 | 33.5 | -93.8%
No surprises since the hash table has 256 entries.
The microbenchmark scans indexes in order, if the pattern is more
random xa starts to win at 512 devices already. But that's a lot
of devices, in practice.
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/20230726185530.2247698-2-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
- A fix for a performance problem in QubesOS, adding a way to drain the
queue of grants experiencing delayed unmaps faster
- A patch enabling the use of static event channels from user mode,
which was omitted when introducing supporting static event channels
- A fix for a problem where Xen related code didn't check properly for
running in a Xen environment, resulting in a WARN splat
* tag 'for-linus-6.5a-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen: speed up grant-table reclaim
xen/evtchn: Introduce new IOCTL to bind static evtchn
xenbus: check xen_domain in xenbus_probe_initcall
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Pull block fixes from Jens Axboe:
"A few fixes that should go into the current kernel release, mainly:
- Set of fixes for dasd (Stefan)
- Handle interruptible waits returning because of a signal for ublk
(Ming)"
* tag 'block-6.5-2023-07-28' of git://git.kernel.dk/linux:
ublk: return -EINTR if breaking from waiting for existed users in DEL_DEV
ublk: fail to recover device if queue setup is interrupted
ublk: fail to start device if queue setup is interrupted
block: Fix a source code comment in include/uapi/linux/blkzoned.h
s390/dasd: print copy pair message only for the correct error
s390/dasd: fix hanging device after request requeue
s390/dasd: use correct number of retries for ERP requests
s390/dasd: fix hanging device after quiesce/resume
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Pull drm fixes from Dave Airlie:
"Regular scheduled fixes, msm and amdgpu leading the way, with some
i915 and a single misc fbdev, all seems fine.
fbdev:
- remove unused function
amdgpu:
- gfxhub partition fix
- Fix error handling in psp_sw_init()
- SMU13 fix
- DCN 3.1 fix
- DCN 3.2 fix
- Fix for display PHY programming sequence
- DP MST error handling fix
- GFX 9.4.3 fix
amdkfd:
- GFX11 trap handling fix
i915:
- Use shmem for dpt objects
- Fix an error handling path in igt_write_huge()
msm:
- display:
- Fix to correct the UBWC programming for decoder version 4.3 seen
on SM8550
- Add the missing flush and fetch bits for DMA4 and DMA5 SSPPs.
- Fix to drop the unused dpu_core_perf_data_bus_id enum from the
code
- Drop the unused dsi_phy_14nm_17mA_regulators from QCM 2290 DSI
cfg.
- gpu:
- Fix warn splat for newer devices without revn
- Remove name/revn for a690.. we shouldn't be populating these for
newer devices, for consistency, but it slipped through review
- Fix a6xx gpu snapshot BINDLESS_DATA size (was listed in bytes
instead of dwords, causing AHB faults on a6xx gen4/a660-family)
- Disallow submit with fence id 0"
* tag 'drm-fixes-2023-07-28' of git://anongit.freedesktop.org/drm/drm: (22 commits)
drm/msm: Disallow submit with fence id 0
drm/amdgpu: Restore HQD persistent state register
drm/amd/display: Unlock on error path in dm_handle_mst_sideband_msg_ready_event()
drm/amd/display: Exit idle optimizations before attempt to access PHY
drm/amd/display: Don't apply FIFO resync W/A if rdivider = 0
drm/amd/display: Guard DCN31 PHYD32CLK logic against chip family
drm/amd/smu: use AverageGfxclkFrequency* to replace previous GFX Curr Clock
drm/amd: Fix an error handling mistake in psp_sw_init()
drm/amdgpu: Fix infinite loop in gfxhub_v1_2_xcc_gart_enable (v2)
drm/amdkfd: fix trap handling work around for debugging
drm/fb-helper: Remove unused inline function drm_fb_helper_defio_init()
drm/i915: Fix an error handling path in igt_write_huge()
drm/i915/dpt: Use shmem for dpt objects
drm/msm: Fix hw_fence error path cleanup
drm/msm: Fix IS_ERR_OR_NULL() vs NULL check in a5xx_submit_in_rb()
drm/msm/adreno: Fix snapshot BINDLESS_DATA size
drm/msm/a690: Remove revn and name
drm/msm/adreno: Fix warn splat for devices without revn
drm/msm/dsi: Drop unused regulators from QCM2290 14nm DSI PHY config
drm/msm/dpu: drop enum dpu_core_perf_data_bus_id
...
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Also add support to pass topdir to ynl-regen.sh (Jakub) and call
it from the makefile to update the UAPI headers.
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Co-developed-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230727163001.3952878-4-sdf@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Now both the physical path and the emulated path can support an IO page
table replacement. Call iommufd_device_replace/iommufd_access_replace(),
when vdev->iommufd_attached is true.
Also update the VFIO_DEVICE_ATTACH_IOMMUFD_PT kdoc in the uAPI header.
Link: https://lore.kernel.org/r/b5f01956ff161f76aa52c95b0fa1ad6eaca95c4a.1690523699.git.nicolinc@nvidia.com
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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Taking advantage of the new iommufd_access_change_ioas_id helper, add an
iommufd_access_replace() API for the VFIO emulated pathway to use.
Link: https://lore.kernel.org/r/a3267b924fd5f45e0d3a1dd13a9237e923563862.1690523699.git.nicolinc@nvidia.com
Suggested-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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Add an inversed variant of str_read_write(), i.e. str_write_read().
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230703185222.50554-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
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Add extack info for IPv6 address add/delete, which would be useful for
users to understand the problem without having to read kernel code.
Suggested-by: Beniamino Galvani <bgalvani@redhat.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Support matching V4L2 async sub-devices based on particular fwnode
endpoint. This makes it possible to instantiate multiple V4L2 sub-devices
based on given fwnode endpoints from a single device, based on driver
needs.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Tested-by: Philipp Zabel <p.zabel@pengutronix.de> # imx6qp
Tested-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> # rcar + adv746x
Tested-by: Aishwarya Kothari <aishwarya.kothari@toradex.com> # Apalis i.MX6Q with TC358743
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> # Renesas RZ/G2L SMARC
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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When the v4l2-async framework was introduced, the use case for it was to
connect a camera sensor with a parallel receiver. Both tended to be rather
simple devices with a single connection between them.
The framework has been since improved in multiple ways but there are
limitations that have remained, for instance the assumption an async
sub-device is connected towards a single notifier and via a single link
only.
This patch enables connecting a sub-device to one or more notifiers
simultaneously, with one or more connections per notifier. The notifier
information is moved from the sub-device to the connection and the
connections in sub-device are no longer a pointer but a linked list.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Tested-by: Philipp Zabel <p.zabel@pengutronix.de> # imx6qp
Tested-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> # rcar + adv746x
Tested-by: Aishwarya Kothari <aishwarya.kothari@toradex.com> # Apalis i.MX6Q with TC358743
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> # Renesas RZ/G2L SMARC
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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Add v4l2_async_connection_unique() function for obtaining a struct
v4l2_async_connection, typically allocated by drivers together with their
own information on an external sub-device.
The relation between connections and sub-devices still remains 1:1 but
this code becomes more complex when the relation soon changes.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Tested-by: Philipp Zabel <p.zabel@pengutronix.de> # imx6qp
Tested-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> # rcar + adv746x
Tested-by: Aishwarya Kothari <aishwarya.kothari@toradex.com> # Apalis i.MX6Q with TC358743
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> # Renesas RZ/G2L SMARC
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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This patch re-arranges internal V4L2 async lists for preparation of
supporting multiple connections per sub-device as well as cleaning up used
lists.
The list of unbound V4L2 sub-devices shall be maintained for the purpose of
listing those sub-devices only, not for their bindin status. Also, the V4L2
async connections now have, instead of two list entries, a single list
entry in the notifier's list, be that either waiting or done lists, while
the notifier's asc_list is removed.
The one-to-one relation between a sub-device and a connection is still
maintained in this patch.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Tested-by: Philipp Zabel <p.zabel@pengutronix.de> # imx6qp
Tested-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> # rcar + adv746x
Tested-by: Aishwarya Kothari <aishwarya.kothari@toradex.com> # Apalis i.MX6Q with TC358743
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> # Renesas RZ/G2L SMARC
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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Rename v4l2_async_subdev as v4l2_async_connection, in order to
differentiate between the sub-devices and their connections: one
sub-device can have many connections but the V4L2 async framework has so
far allowed just a single one. Connections in this context will later
translate into either MC ancillary or data links.
This patch prepares changing that relation by changing existing users of
v4l2_async_subdev to switch to v4l2_async_connection. Async sub-devices
themselves will not be needed anymore
Additionally, __v4l2_async_nf_add_subdev() has been renamed
__v4l2_async_nf_add_connection().
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Tested-by: Philipp Zabel <p.zabel@pengutronix.de> # imx6qp
Tested-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> # rcar + adv746x
Tested-by: Aishwarya Kothari <aishwarya.kothari@toradex.com> # Apalis i.MX6Q with TC358743
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> # Renesas RZ/G2L SMARC
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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The naming of list heads and list entries is confusing as they're named
similarly. Use _list for list head and _entry for list entries.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Tested-by: Philipp Zabel <p.zabel@pengutronix.de> # imx6qp
Tested-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> # rcar + adv746x
Tested-by: Aishwarya Kothari <aishwarya.kothari@toradex.com> # Apalis i.MX6Q with TC358743
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> # Renesas RZ/G2L SMARC
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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The async match type is a struct field now, rename V4L2_ASYNC_MATCH_*
macros as V4L2_ASYNC_MATCH_TYPE_* instead.
This patch has been produced by:
git grep -l V4L2_ASYNC_MATCH_ -- drivers/media/ drivers/staging/media/ \
include/ Documentation/|xargs perl -i -pe \
's/V4L2_ASYNC_MATCH_\K/TYPE_/g'
so it must be correct.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Tested-by: Philipp Zabel <p.zabel@pengutronix.de> # imx6qp
Tested-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> # rcar + adv746x
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Aishwarya Kothari <aishwarya.kothari@toradex.com> # Apalis i.MX6Q with TC358743
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> # Renesas RZ/G2L SMARC
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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Make V4L2 async match information a struct, making it easier to use it
elsewhere outside the scope of struct v4l2_async_subdev.
Also remove an obsolete comment --- none of these fields are supposed to
be touched by drivers.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Tested-by: Philipp Zabel <p.zabel@pengutronix.de> # imx6qp
Tested-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> # rcar + adv746x
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Aishwarya Kothari <aishwarya.kothari@toradex.com> # Apalis i.MX6Q with TC358743
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> # Renesas RZ/G2L SMARC
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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Remove an unneeded declaration for struct fwnode_handle.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> # Renesas RZ/G2L SMARC
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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The v4l2_async_nf_parse_fwnode_endpoints() function, part of
v4l2-fwnode.c, was a helper meant to register one async sub-dev for each
fwnode endpoint of a device.
The function is marked as deprecated in the documentation and is actually
not used anywhere anymore. Drop it and remove the helper function
v4l2_async_nf_fwnode_parse_endpoint() from v4l2-fwnode.c.
This change allows to make the helper function
__v4l2_async_nf_add_connection() visibility private to v4l2-async.c so
that there is no risk drivers can mistakenly use it.
[Sakari Ailus: Small fixups on top.]
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Tested-by: Philipp Zabel <p.zabel@pengutronix.de> # imx6qp
Tested-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> # rcar + adv746x
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Aishwarya Kothari <aishwarya.kothari@toradex.com> # Apalis i.MX6Q with TC358743
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> # Renesas RZ/G2L SMARC
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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Some architectures allow partial SMT states at boot time, ie. when not all
SMT threads are brought online.
To support that the SMT code needs to know the maximum number of SMT
threads, and also the currently configured number.
The architecture code knows the max number of threads, so have the
architecture code pass that value to cpu_smt_set_num_threads(). Note that
although topology_max_smt_threads() exists, it is not configured early
enough to be used here. As architecture, like PowerPC, allows the threads
number to be set through the kernel command line, also pass that value.
[ ldufour: Slightly reword the commit message ]
[ ldufour: Rename cpu_smt_check_topology and add a num_threads argument ]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Laurent Dufour <ldufour@linux.ibm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Zhang Rui <rui.zhang@intel.com>
Link: https://lore.kernel.org/r/20230705145143.40545-5-ldufour@linux.ibm.com
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In order to export the cpuhp_smt_control enum as part of the interface
between generic and architecture code, the architecture code needs to
include asm/topology.h.
But that leads to circular header dependencies. So split the enum and
related declarations into a separate header.
[ ldufour: Reworded the commit's description ]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Laurent Dufour <ldufour@linux.ibm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Zhang Rui <rui.zhang@intel.com>
Link: https://lore.kernel.org/r/20230705145143.40545-3-ldufour@linux.ibm.com
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Add can_rx_offload_get_echo_skb_queue_tail(). This function addds the
echo skb at the end of rx-offload the queue. This is intended for
devices without timestamp support.
Link: https://lore.kernel.org/all/20230718-gs_usb-rx-offload-v2-2-716e542d14d5@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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can_rx_offload_get_echo_skb_queue_timestamp()
Rename the rx_offload_get_echo_skb() function to
can_rx_offload_get_echo_skb_queue_timestamp(), since it inserts the
echo skb into the rx-offload queue sorted by timestamp.
This is a preparation for adding
can_rx_offload_get_echo_skb_queue_tail(), which adds the echo skb to
the end of the queue. This is intended for devices that do not support
timestamps.
Link: https://lore.kernel.org/all/20230718-gs_usb-rx-offload-v2-1-716e542d14d5@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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