[ Upstream commit 791082ec0a ]
Re-enable the function rtl8xxxu_gen2_report_connect.
It informs the firmware when connecting to a network. This makes the
firmware enable the rate control, which makes the upload faster.
It also informs the firmware when disconnecting from a network. In the
past this made reconnecting impossible because it was sending the
auth on queue 0x7 (TXDESC_QUEUE_VO) instead of queue 0x12
(TXDESC_QUEUE_MGNT):
wlp0s20f0u3: send auth to 90:55:de:__:__:__ (try 1/3)
wlp0s20f0u3: send auth to 90:55:de:__:__:__ (try 2/3)
wlp0s20f0u3: send auth to 90:55:de:__:__:__ (try 3/3)
wlp0s20f0u3: authentication with 90:55:de:__:__:__ timed out
Probably the firmware disables the unnecessary TX queues when it
knows it's disconnected.
However, this was fixed in commit edd5747aa1 ("wifi: rtl8xxxu: Fix
skb misuse in TX queue selection").
Fixes: c59f13bbea ("rtl8xxxu: Work around issue with 8192eu and 8723bu devices not reconnecting")
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/43200afc-0c65-ee72-48f8-231edd1df493@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit f74878433d ]
Commit 26f3a021b3 ("ath11k: allocate smaller chunks of memory for
firmware") and commit f6f92968e1 ("ath11k: qmi: try to allocate a
big block of DMA memory first") change ath11k to allocate the memory
chunks for target twice while wlan load. It fails for the 1st time
because of large memory and then changed to allocate many small chunks
for the 2nd time sometimes as below log.
1st time failed:
[10411.640620] ath11k_pci 0000:05:00.0: qmi firmware request memory request
[10411.640625] ath11k_pci 0000:05:00.0: qmi mem seg type 1 size 6881280
[10411.640630] ath11k_pci 0000:05:00.0: qmi mem seg type 4 size 3784704
[10411.640658] ath11k_pci 0000:05:00.0: qmi dma allocation failed (6881280 B type 1), will try later with small size
[10411.640671] ath11k_pci 0000:05:00.0: qmi delays mem_request 2
[10411.640677] ath11k_pci 0000:05:00.0: qmi respond memory request delayed 1
2nd time success:
[10411.642004] ath11k_pci 0000:05:00.0: qmi firmware request memory request
[10411.642008] ath11k_pci 0000:05:00.0: qmi mem seg type 1 size 524288
[10411.642012] ath11k_pci 0000:05:00.0: qmi mem seg type 1 size 524288
[10411.642014] ath11k_pci 0000:05:00.0: qmi mem seg type 1 size 524288
[10411.642016] ath11k_pci 0000:05:00.0: qmi mem seg type 1 size 524288
[10411.642018] ath11k_pci 0000:05:00.0: qmi mem seg type 1 size 524288
[10411.642020] ath11k_pci 0000:05:00.0: qmi mem seg type 1 size 524288
[10411.642022] ath11k_pci 0000:05:00.0: qmi mem seg type 1 size 524288
[10411.642024] ath11k_pci 0000:05:00.0: qmi mem seg type 1 size 524288
[10411.642027] ath11k_pci 0000:05:00.0: qmi mem seg type 1 size 524288
[10411.642029] ath11k_pci 0000:05:00.0: qmi mem seg type 1 size 524288
[10411.642031] ath11k_pci 0000:05:00.0: qmi mem seg type 1 size 458752
[10411.642033] ath11k_pci 0000:05:00.0: qmi mem seg type 1 size 131072
[10411.642035] ath11k_pci 0000:05:00.0: qmi mem seg type 4 size 524288
[10411.642037] ath11k_pci 0000:05:00.0: qmi mem seg type 4 size 524288
[10411.642039] ath11k_pci 0000:05:00.0: qmi mem seg type 4 size 524288
[10411.642041] ath11k_pci 0000:05:00.0: qmi mem seg type 4 size 524288
[10411.642043] ath11k_pci 0000:05:00.0: qmi mem seg type 4 size 524288
[10411.642045] ath11k_pci 0000:05:00.0: qmi mem seg type 4 size 524288
[10411.642047] ath11k_pci 0000:05:00.0: qmi mem seg type 4 size 491520
[10411.642049] ath11k_pci 0000:05:00.0: qmi mem seg type 1 size 524288
And then commit 5962f370ce ("ath11k: Reuse the available memory after
firmware reload") skip the ath11k_qmi_free_resource() which frees the
memory chunks while recovery, after that, when run recovery test on
WCN6855, a warning happened every time as below and finally leads fail
for recovery.
[ 159.570318] BUG: Bad page state in process kworker/u16:5 pfn:33300
[ 159.570320] page:0000000096ffdbb9 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x33300
[ 159.570324] flags: 0xfffffc0000000(node=0|zone=1|lastcpupid=0x1fffff)
[ 159.570329] raw: 000fffffc0000000 0000000000000000 dead000000000122 0000000000000000
[ 159.570332] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[ 159.570334] page dumped because: nonzero _refcount
[ 159.570440] firewire_ohci syscopyarea sysfillrect psmouse sdhci_pci ahci sysimgblt firewire_core fb_sys_fops libahci crc_itu_t cqhci drm sdhci e1000e wmi video
[ 159.570460] CPU: 2 PID: 217 Comm: kworker/u16:5 Kdump: loaded Tainted: G B 5.19.0-rc1-wt-ath+ #3
[ 159.570465] Hardware name: LENOVO 418065C/418065C, BIOS 83ET63WW (1.33 ) 07/29/2011
[ 159.570467] Workqueue: qmi_msg_handler qmi_data_ready_work [qmi_helpers]
[ 159.570475] Call Trace:
[ 159.570476] <TASK>
[ 159.570478] dump_stack_lvl+0x49/0x5f
[ 159.570486] dump_stack+0x10/0x12
[ 159.570493] bad_page+0xab/0xf0
[ 159.570502] check_free_page_bad+0x66/0x70
[ 159.570511] __free_pages_ok+0x530/0x9a0
[ 159.570517] ? __dev_printk+0x58/0x6b
[ 159.570525] ? _dev_printk+0x56/0x72
[ 159.570534] ? qmi_decode+0x119/0x470 [qmi_helpers]
[ 159.570543] __free_pages+0x91/0xd0
[ 159.570548] dma_free_contiguous+0x50/0x60
[ 159.570556] dma_direct_free+0xe5/0x140
[ 159.570564] dma_free_attrs+0x35/0x50
[ 159.570570] ath11k_qmi_msg_mem_request_cb+0x2ae/0x3c0 [ath11k]
[ 159.570620] qmi_invoke_handler+0xac/0xe0 [qmi_helpers]
[ 159.570630] qmi_handle_message+0x6d/0x180 [qmi_helpers]
[ 159.570643] qmi_data_ready_work+0x2ca/0x440 [qmi_helpers]
[ 159.570656] process_one_work+0x227/0x440
[ 159.570667] worker_thread+0x31/0x3d0
[ 159.570676] ? process_one_work+0x440/0x440
[ 159.570685] kthread+0xfe/0x130
[ 159.570692] ? kthread_complete_and_exit+0x20/0x20
[ 159.570701] ret_from_fork+0x22/0x30
[ 159.570712] </TASK>
The reason is because when wlan start to recovery, the type, size and
count is not same for the 1st and 2nd QMI_WLFW_REQUEST_MEM_IND message,
Then it leads the parameter size is not correct for the dma_free_coherent().
For the chunk[1], the actual dma size is 524288 which allocate in the
2nd time of the initial wlan load phase, and the size which pass to
dma_free_coherent() is 3784704 which is got in the 1st time of recovery
phase, then warning above happened.
Change to use prev_size of struct target_mem_chunk for the paramter of
dma_free_coherent() since prev_size is the real size of last load/recovery.
Also change to check both type and size of struct target_mem_chunk to
reuse the memory to avoid mismatch buffer size for target. Then the
warning disappear and recovery success. When the 1st QMI_WLFW_REQUEST_MEM_IND
for recovery arrived, the trunk[0] is freed in ath11k_qmi_alloc_target_mem_chunk()
and then dma_alloc_coherent() failed caused by large size, and then
trunk[1] is freed in ath11k_qmi_free_target_mem_chunk(), the left 18
trunks will be reuse for the 2nd QMI_WLFW_REQUEST_MEM_IND message.
Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3
Fixes: 5962f370ce ("ath11k: Reuse the available memory after firmware reload")
Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220928073832.16251-1-quic_wgong@quicinc.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit d37c120b73 ]
While the interface for the MMU mapping takes phys_addr_t to hold a
full 64bit address when necessary and MMUv2 is able to map physical
addresses with up to 40bit, etnaviv_iommu_map() truncates the address
to 32bits. Fix this by using the correct type.
Fixes: 931e97f3af ("drm/etnaviv: mmuv2: support 40 bit phys address")
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
commit e917a849c3 upstream.
The sysfs group containing the cmb attributes is registered before the
driver knows if they need to be visible or not. Update the group when
cmb attributes are known to exist so the visibility setting is correct.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=217037
Fixes: 86adbf0cdb ("nvme: simplify transport specific device attribute handling")
Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit d125d1349a upstream.
syzbot reported a RCU stall which is caused by setting up an alarmtimer
with a very small interval and ignoring the signal. The reproducer arms the
alarm timer with a relative expiry of 8ns and an interval of 9ns. Not a
problem per se, but that's an issue when the signal is ignored because then
the timer is immediately rearmed because there is no way to delay that
rearming to the signal delivery path. See posix_timer_fn() and commit
58229a1899 ("posix-timers: Prevent softirq starvation by small intervals
and SIG_IGN") for details.
The reproducer does not set SIG_IGN explicitely, but it sets up the timers
signal with SIGCONT. That has the same effect as explicitely setting
SIG_IGN for a signal as SIGCONT is ignored if there is no handler set and
the task is not ptraced.
The log clearly shows that:
[pid 5102] --- SIGCONT {si_signo=SIGCONT, si_code=SI_TIMER, si_timerid=0, si_overrun=316014, si_int=0, si_ptr=NULL} ---
It works because the tasks are traced and therefore the signal is queued so
the tracer can see it, which delays the restart of the timer to the signal
delivery path. But then the tracer is killed:
[pid 5087] kill(-5102, SIGKILL <unfinished ...>
...
./strace-static-x86_64: Process 5107 detached
and after it's gone the stall can be observed:
syzkaller login: [ 79.439102][ C0] hrtimer: interrupt took 68471 ns
[ 184.460538][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
...
[ 184.658237][ C1] rcu: Stack dump where RCU GP kthread last ran:
[ 184.664574][ C1] Sending NMI from CPU 1 to CPUs 0:
[ 184.669821][ C0] NMI backtrace for cpu 0
[ 184.669831][ C0] CPU: 0 PID: 5108 Comm: syz-executor192 Not tainted 6.2.0-rc6-next-20230203-syzkaller #0
...
[ 184.670036][ C0] Call Trace:
[ 184.670041][ C0] <IRQ>
[ 184.670045][ C0] alarmtimer_fired+0x327/0x670
posix_timer_fn() prevents that by checking whether the interval for
timers which have the signal ignored is smaller than a jiffie and
artifically delay it by shifting the next expiry out by a jiffie. That's
accurate vs. the overrun accounting, but slightly inaccurate
vs. timer_gettimer(2).
The comment in that function says what needs to be done and there was a fix
available for the regular userspace induced SIG_IGN mechanism, but that did
not work due to the implicit ignore for SIGCONT and similar signals. This
needs to be worked on, but for now the only available workaround is to do
exactly what posix_timer_fn() does:
Increase the interval of self-rearming timers, which have their signal
ignored, to at least a jiffie.
Interestingly this has been fixed before via commit ff86bf0c65
("alarmtimer: Rate limit periodic intervals") already, but that fix got
lost in a later rework.
Reported-by: syzbot+b9564ba6e8e00694511b@syzkaller.appspotmail.com
Fixes: f2c45807d3 ("alarmtimer: Switch over to generic set/get/rearm routine")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: John Stultz <jstultz@google.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/87k00q1no2.ffs@tglx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 4d7404e5ee upstream.
Disable KVM support for virtualizing PMUs on hosts with hybrid PMUs until
KVM gains a sane way to enumeration the hybrid vPMU to userspace and/or
gains a mechanism to let userspace opt-in to the dangers of exposing a
hybrid vPMU to KVM guests. Virtualizing a hybrid PMU, or at least part of
a hybrid PMU, is possible, but it requires careful, deliberate
configuration from userspace.
E.g. to expose full functionality, vCPUs need to be pinned to pCPUs to
prevent migrating a vCPU between a big core and a little core, userspace
must enumerate a reasonable topology to the guest, and guest CPUID must be
curated per vCPU to enumerate accurate vPMU capabilities.
The last point is especially problematic, as KVM doesn't control which
pCPU it runs on when enumerating KVM's vPMU capabilities to userspace,
i.e. userspace can't rely on KVM_GET_SUPPORTED_CPUID in it's current form.
Alternatively, userspace could enable vPMU support by enumerating the
set of features that are common and coherent across all cores, e.g. by
filtering PMU events and restricting guest capabilities. But again, that
requires userspace to take action far beyond reflecting KVM's supported
feature set into the guest.
For now, simply disable vPMU support on hybrid CPUs to avoid inducing
seemingly random #GPs in guests, and punt support for hybrid CPUs to a
future enabling effort.
Reported-by: Jianfeng Gao <jianfeng.gao@intel.com>
Cc: stable@vger.kernel.org
Cc: Andrew Cooper <Andrew.Cooper3@citrix.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Link: https://lore.kernel.org/all/20220818181530.2355034-1-kan.liang@linux.intel.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230208204230.1360502-2-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 91c11d5f32 ]
when starting error recovery there might be a authentication work
running, and it involves I/O commands. Given the controller is tearing
down there is no chance for the I/O to complete other than timing out
which may unnecessarily take a full io timeout.
So first tear down the queues, fail/cancel all inflight I/O (including
potentially authentication) and only then stop authentication. This
ensures that failover is not stalled due to blocked authentication I/O.
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 1f1a4f8956 ]
when starting error recovery there might be a authentication work
running, and it involves I/O commands. Given the controller is tearing
down there is no chance for the I/O to complete other than timing out
which may unnecessarily take a full io timeout.
So first tear down the queues, fail/cancel all inflight I/O (including
potentially authentication) and only then stop authentication. This
ensures that failover is not stalled due to blocked authentication I/O.
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
commit 8230680f36 upstream.
Take into account the IPV6_TCLASS socket option (DSCP) in
tcp_v6_connect(). Otherwise fib6_rule_match() can't properly
match the DSCP value, resulting in invalid route lookup.
For example:
ip route add unreachable table main 2001:db8::10/124
ip route add table 100 2001:db8::10/124 dev eth0
ip -6 rule add dsfield 0x04 table 100
echo test | socat - TCP6:[2001:db8::11]:54321,ipv6-tclass=0x04
Without this patch, socat fails at connect() time ("No route to host")
because the fib-rule doesn't jump to table 100 and the lookup ends up
being done in the main table.
Fixes: 2cc67cc731 ("[IPV6] ROUTE: Routing by Traffic Class.")
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit e010ae08c7 upstream.
Take into account the IPV6_TCLASS socket option (DSCP) in
ip6_datagram_flow_key_init(). Otherwise fib6_rule_match() can't
properly match the DSCP value, resulting in invalid route lookup.
For example:
ip route add unreachable table main 2001:db8::10/124
ip route add table 100 2001:db8::10/124 dev eth0
ip -6 rule add dsfield 0x04 table 100
echo test | socat - UDP6:[2001:db8::11]:54321,ipv6-tclass=0x04
Without this patch, socat fails at connect() time ("No route to host")
because the fib-rule doesn't jump to table 100 and the lookup ends up
being done in the main table.
Fixes: 2cc67cc731 ("[IPV6] ROUTE: Routing by Traffic Class.")
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 5d54cb1767 upstream.
Commit a97f8783a9 ("igb: unbreak I2C bit-banging on i350") introduced
code to change I2C settings to bit banging unconditionally.
However, this patch introduced a regression: On an Intel S2600CWR
Server Board with three NICs:
- 1x dual-port copper
Intel I350 Gigabit Network Connection [8086:1521] (rev 01)
fw 1.63, 0x80000dda
- 2x quad-port SFP+ with copper SFP Avago ABCU-5700RZ
Intel I350 Gigabit Fiber Network Connection [8086:1522] (rev 01)
fw 1.52.0
the SFP NICs no longer get link at all. Reverting commit a97f8783a9
or switching to the Intel out-of-tree driver both fix the problem.
Per the igb out-of-tree driver, I2C bit banging on i350 depends on
support for an external thermal sensor (ETS). However, commit
a97f8783a9 added bit banging unconditionally. Additionally, the
out-of-tree driver always calls init_thermal_sensor_thresh on probe,
while our driver only calls init_thermal_sensor_thresh only in
igb_reset(), and only if an ETS is present, ignoring the internal
thermal sensor. The affected SFPs don't provide an ETS. Per Intel,
the behaviour is a result of i350 firmware requirements.
This patch fixes the problem by aligning the behaviour to the
out-of-tree driver:
- split igb_init_i2c() into two functions:
- igb_init_i2c() only performs the basic I2C initialization.
- igb_set_i2c_bb() makes sure that E1000_CTRL_I2C_ENA is set
and enables bit-banging.
- igb_probe() only calls igb_set_i2c_bb() if an ETS is present.
- igb_probe() calls init_thermal_sensor_thresh() unconditionally.
- igb_reset() aligns its behaviour to igb_probe(), i. e., call
igb_set_i2c_bb() if an ETS is present and call
init_thermal_sensor_thresh() unconditionally.
Fixes: a97f8783a9 ("igb: unbreak I2C bit-banging on i350")
Tested-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Co-developed-by: Jamie Bainbridge <jbainbri@redhat.com>
Signed-off-by: Jamie Bainbridge <jbainbri@redhat.com>
Signed-off-by: Corinna Vinschen <vinschen@redhat.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://lore.kernel.org/r/20230214185549.1306522-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit fda6c89fe3 upstream.
lianhui reports that when MPLS fails to register the sysctl table
under new location (during device rename) the old pointers won't
get overwritten and may be freed again (double free).
Handle this gracefully. The best option would be unregistering
the MPLS from the device completely on failure, but unfortunately
mpls_ifdown() can fail. So failing fully is also unreliable.
Another option is to register the new table first then only
remove old one if the new one succeeds. That requires more
code, changes order of notifications and two tables may be
visible at the same time.
sysctl point is not used in the rest of the code - set to NULL
on failures and skip unregister if already NULL.
Reported-by: lianhui tang <bluetlh@gmail.com>
Fixes: 0fae3bf018 ("mpls: handle device renames for per-device sysctls")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 05d7623a89 upstream.
When setting 'snps,force_thresh_dma_mode' DT property, the following
warning is always emitted, regardless the status of force_sf_dma_mode:
dwmac-starfive 10020000.ethernet: force_sf_dma_mode is ignored if force_thresh_dma_mode is set.
Do not print the rather misleading message when DMA store and forward
mode is already disabled.
Fixes: e2a240c7d3 ("driver:net:stmmac: Disable DMA store and forward mode if platform data force_thresh_dma_mode is set.")
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Link: https://lore.kernel.org/r/20230210202126.877548-1-cristian.ciocaltea@collabora.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 2038cc5928 upstream.
In bnxt_reserve_rings(), there is logic to check that the number of TX
rings reserved is enough to cover all the mqprio TCs, but it fails to
account for the TX XDP rings. So the check will always fail if there
are mqprio TCs and TX XDP rings. As a result, the driver always fails
to initialize after the XDP program is attached and the device will be
brought down. A subsequent ifconfig up will also fail because the
number of TX rings is set to an inconsistent number. Fix the check to
properly account for TX XDP rings. If the check fails, set the number
of TX rings back to a consistent number after calling netdev_reset_tc().
Fixes: 674f50a5b0 ("bnxt_en: Implement new method to reserve rings.")
Reviewed-by: Hongguang Gao <hongguang.gao@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 4562c65ec8 upstream.
So far changing the period by just setting new period values while
running did not work.
The order as indicated by the publicly available reference manual of the i.MX8MP [1]
indicates a sequence:
* initiate the programming sequence
* set the values for PPS period and start time
* start the pulse train generation.
This is currently not used in dwmac5_flex_pps_config(), which instead does:
* initiate the programming sequence and immediately start the pulse train generation
* set the values for PPS period and start time
This caused the period values written not to take effect until the FlexPPS output was
disabled and re-enabled again.
This patch fix the order and allows the period to be set immediately.
[1] https://www.nxp.com/webapp/Download?colCode=IMX8MPRM
Fixes: 9a8a02c9d4 ("net: stmmac: Add Flexible PPS support")
Signed-off-by: Johannes Zink <j.zink@pengutronix.de>
Link: https://lore.kernel.org/r/20230210143937.3427483-1-j.zink@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 21c167aa0b upstream.
The tc action act_ctinfo was using shared stats, fix it to use percpu stats
since bstats_update() must be called with locks or with a percpu pointer argument.
tdc results:
1..12
ok 1 c826 - Add ctinfo action with default setting
ok 2 0286 - Add ctinfo action with dscp
ok 3 4938 - Add ctinfo action with valid cpmark and zone
ok 4 7593 - Add ctinfo action with drop control
ok 5 2961 - Replace ctinfo action zone and action control
ok 6 e567 - Delete ctinfo action with valid index
ok 7 6a91 - Delete ctinfo action with invalid index
ok 8 5232 - List ctinfo actions
ok 9 7702 - Flush ctinfo actions
ok 10 3201 - Add ctinfo action with duplicate index
ok 11 8295 - Add ctinfo action with invalid index
ok 12 3964 - Replace ctinfo action with invalid goto_chain control
Fixes: 24ec483cec ("net: sched: Introduce act_ctinfo action")
Reviewed-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Pedro Tammela <pctammela@mojatatu.com>
Reviewed-by: Larysa Zaremba <larysa.zaremba@intel.com>
Link: https://lore.kernel.org/r/20230210200824.444856-1-pctammela@mojatatu.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit c68f345b7c upstream.
syzbot reported that act_len in kalmia_send_init_packet() is
uninitialized when passing it to the first usb_bulk_msg error path. Jiri
Pirko noted that it's pointless to pass it in the error path, and that
the value that would be printed in the second error path would be the
value of act_len from the first call to usb_bulk_msg.[1]
With this in mind, let's just not pass act_len to the usb_bulk_msg error
paths.
1: https://lore.kernel.org/lkml/Y9pY61y1nwTuzMOa@nanopsycho/
Fixes: d40261236e ("net/usb: Add Samsung Kalmia driver for Samsung GT-B3730")
Reported-and-tested-by: syzbot+cd80c5ef5121bfe85b55@syzkaller.appspotmail.com
Signed-off-by: Miko Larsson <mikoxyzzz@gmail.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit ca43ccf412 upstream.
Eric Dumazet pointed out [0] that when we call skb_set_owner_r()
for ipv6_pinfo.pktoptions, sk_rmem_schedule() has not been called,
resulting in a negative sk_forward_alloc.
We add a new helper which clones a skb and sets its owner only
when sk_rmem_schedule() succeeds.
Note that we move skb_set_owner_r() forward in (dccp|tcp)_v6_do_rcv()
because tcp_send_synack() can make sk_forward_alloc negative before
ipv6_opt_accepted() in the crossed SYN-ACK or self-connect() cases.
[0]: https://lore.kernel.org/netdev/CANn89iK9oc20Jdi_41jb9URdF210r7d1Y-+uypbMSbOfY6jqrg@mail.gmail.com/
Fixes: 323fbd0edf ("net: dccp: Add handling of IPV6_PKTOPTIONS to dccp_v6_do_rcv()")
Fixes: 3df80d9320 ("[DCCP]: Introduce DCCPv6")
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit ee059170b1 upstream.
The imperfect hash area can be updated while packets are traversing,
which will cause a use-after-free when 'tcf_exts_exec()' is called
with the destroyed tcf_ext.
CPU 0: CPU 1:
tcindex_set_parms tcindex_classify
tcindex_lookup
tcindex_lookup
tcf_exts_change
tcf_exts_exec [UAF]
Stop operating on the shared area directly, by using a local copy,
and update the filter with 'rcu_replace_pointer()'. Delete the old
filter version only after a rcu grace period elapsed.
Fixes: 9b0d4446b5 ("net: sched: avoid atomic swap in tcf_exts_change")
Reported-by: valis <sec@valis.email>
Suggested-by: valis <sec@valis.email>
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Pedro Tammela <pctammela@mojatatu.com>
Link: https://lore.kernel.org/r/20230209143739.279867-1-pctammela@mojatatu.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 0ed577e7e8 upstream.
In TI's AM62x/AM64x SoCs, successful teardown of RX DMA Channel raises an
interrupt. The process of servicing this interrupt involves flushing all
pending RX DMA descriptors and clearing the teardown completion marker
(TDCM). The am65_cpsw_nuss_rx_packets() function invoked from the RX
NAPI callback services the interrupt. Thus, it is necessary to wait for
this handler to run, drain all packets and clear TDCM, before calling
napi_disable() in am65_cpsw_nuss_common_stop() function post channel
teardown. If napi_disable() executes before ensuring that TDCM is
cleared, the TDCM remains set when the interfaces are down, resulting in
an interrupt storm when the interfaces are brought up again.
Since the interrupt raised to indicate the RX DMA Channel teardown is
specific to the AM62x and AM64x SoCs, add a quirk for it.
Fixes: 4f7cce2724 ("net: ethernet: ti: am65-cpsw: add support for am64x cpsw3g")
Co-developed-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Reviewed-by: Roger Quadros <rogerq@kernel.org>
Link: https://lore.kernel.org/r/20230209084432.189222-1-s-vadapalli@ti.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit f9cd6a4418 upstream.
Recently I encountered one case where I cannot increase the MTU size
directly from 1500 to a much bigger value with XDP enabled if the
server is equipped with IXGBE card, which happened on thousands of
servers in production environment. After applying the current patch,
we can set the maximum MTU size to 3K.
This patch follows the behavior of changing MTU as i40e/ice does.
References:
[1] commit 23b44513c3 ("ice: allow 3k MTU for XDP")
[2] commit 0c8493d90b ("i40e: add XDP support for pass and drop actions")
Fixes: fabf1bce10 ("ixgbe: Prevent unsupported configurations with XDP")
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Tested-by: Chandan Kumar Rout <chandanx.rout@intel.com> (A Contingent Worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 43fbca02c2 upstream.
There was a problem reported to us where the addition of a VF with an IPv6
address ending with a particular sequence would cause the parent device on
the PF to no longer be able to respond to neighbor discovery packets.
In this case, we had an ovs-bridge device living on top of a VLAN, which
was on top of a PF, and it would not be able to talk anymore (the neighbor
entry would expire and couldn't be restored).
The root cause of the issue is that if the PF is asked to be in IFF_PROMISC
mode (promiscuous mode) and it had an ipv6 address that needed the
33:33:ff:00:00:04 multicast address to work, then when the VF was added
with the need for the same multicast address, the VF would steal all the
traffic destined for that address.
The ice driver didn't auto-subscribe a request of IFF_PROMISC to the
"multicast replication from other port's traffic" meaning that it won't get
for instance, packets with an exact destination in the VF, as above.
The VF's IPv6 address, which adds a "perfect filter" for 33:33:ff:00:00:04,
results in no packets for that multicast address making it to the PF (which
is in promisc but NOT "multicast replication").
The fix is to enable "multicast promiscuous" whenever the driver is asked
to enable IFF_PROMISC, and make sure to disable it when appropriate.
Fixes: e94d447866 ("ice: Implement filter sync, NDO operations and bump version")
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 6b77b16de7 upstream.
YUV images can either be presented as one allocation with offsets
for the different planes, or multiple allocations with 0 offsets.
The driver only ever calls drm_fb_[dma|cma]_get_gem_obj with plane
index 0, therefore any application using the second approach was
incorrectly rendered.
Correctly determine the address for each plane, removing the
assumption that the base address is the same for each.
Fixes: fc04023faf ("drm/vc4: Add support for YUV planes.")
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20230127155708.454704-1-maxime@cerno.tech
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 247a631f9c upstream.
The formula that determines the core clock requirement based on pixel
clock and blanking has been determined experimentally to minimise the
clock while supporting all modes we've seen.
A new reduced blanking mode (4kp60 at 533MHz rather than the standard
594MHz) has been seen that doesn't produce a high enough clock and
results in "flip_done timed out" error.
Increase the setup cost in the formula to make this work. The result is
a reduced blanking mode increases by up to 7MHz while leaving the
standard timing
mode untouched
Link: https://github.com/raspberrypi/linux/issues/4446
Fixes: 16e101051f ("drm/vc4: Increase the core clock based on HVS load")
Signed-off-by: Dom Cobley <popcornmix@gmail.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20230127145558.446123-1-maxime@cerno.tech
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 9b55d3f0a6 upstream.
When converting net_device_stats to rtnl_link_stats64 sign extension
is triggered on ILP32 machines as 6c1c509778 changed the previous
"ulong -> u64" conversion to "long -> u64" by accessing the
net_device_stats fields through a (signed) atomic_long_t.
This causes for example the received bytes counter to jump to 16EiB after
having received 2^31 bytes. Casting the atomic value to "unsigned long"
beforehand converting it into u64 avoids this.
Fixes: 6c1c509778 ("net: add atomic_long_t to net_device_stats fields")
Signed-off-by: Felix Riemann <felix.riemann@sma.de>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 647037adca upstream.
This reverts commit 115d9d77bb.
The pages being freed by memblock_free_late() have already been
initialized, but if they are in the deferred init range,
__free_one_page() might access nearby uninitialized pages when trying to
coalesce buddies. This can, for example, trigger this BUG:
BUG: unable to handle page fault for address: ffffe964c02580c8
RIP: 0010:__list_del_entry_valid+0x3f/0x70
<TASK>
__free_one_page+0x139/0x410
__free_pages_ok+0x21d/0x450
memblock_free_late+0x8c/0xb9
efi_free_boot_services+0x16b/0x25c
efi_enter_virtual_mode+0x403/0x446
start_kernel+0x678/0x714
secondary_startup_64_no_verify+0xd2/0xdb
</TASK>
A proper fix will be more involved so revert this change for the time
being.
Fixes: 115d9d77bb ("mm: Always release pages to the buddy allocator in memblock_free_late().")
Signed-off-by: Aaron Thompson <dev@aaront.org>
Link: https://lore.kernel.org/r/20230207082151.1303-1-dev@aaront.org
Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 9c7417b5ec upstream.
If CONFIG_ELF_CORE is not set:
fs/coredump.c:835:12: error: ‘dump_emit_page’ defined but not used [-Werror=unused-function]
835 | static int dump_emit_page(struct coredump_params *cprm, struct page *page)
| ^~~~~~~~~~~~~~
Fix this by moving dump_emit_page() inside the existing section
protected by #ifdef CONFIG_ELF_CORE.
Fixes: 06bbaa6dc5 ("[coredump] don't use __kernel_write() on kmap_local_page()")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
