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118,354 commits

Author SHA1 Message Date
Jason A. Donenfeld
35a1185745 wireguard: netlink: send staged packets when setting initial private key
commit f58d0a9b4c upstream.

Packets bound for peers can queue up prior to the device private key
being set. For example, if persistent keepalive is set, a packet is
queued up to be sent as soon as the device comes up. However, if the
private key hasn't been set yet, the handshake message never sends, and
no timer is armed to retry, since that would be pointless.

But, if a user later sets a private key, the expectation is that those
queued packets, such as a persistent keepalive, are actually sent. So
adjust the configuration logic to account for this edge case, and add a
test case to make sure this works.

Maxim noticed this with a wg-quick(8) config to the tune of:

    [Interface]
    PostUp = wg set %i private-key somefile

    [Peer]
    PublicKey = ...
    Endpoint = ...
    PersistentKeepalive = 25

Here, the private key gets set after the device comes up using a PostUp
script, triggering the bug.

Fixes: e7096c131e ("net: WireGuard secure network tunnel")
Cc: stable@vger.kernel.org
Reported-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>
Tested-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>
Link: https://lore.kernel.org/wireguard/87fs7xtqrv.fsf@gmail.com/
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-07-19 16:37:02 +02:00
Jason A. Donenfeld
9a1317621f wireguard: queueing: use saner cpu selection wrapping
commit 7387943fa3 upstream.

Using `% nr_cpumask_bits` is slow and complicated, and not totally
robust toward dynamic changes to CPU topologies. Rather than storing the
next CPU in the round-robin, just store the last one, and also return
that value. This simplifies the loop drastically into a much more common
pattern.

Fixes: e7096c131e ("net: WireGuard secure network tunnel")
Cc: stable@vger.kernel.org
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Tested-by: Manuel Leiner <manuel.leiner@gmx.de>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-07-19 16:37:02 +02:00
Quan Zhou
53e89d83dc wifi: mt76: mt7921e: fix init command fail with enabled device
commit 525c469e5d upstream.

For some cases as below, we may encounter the unpreditable chip stats
in driver probe()
* The system reboot flow do not work properly, such as kernel oops while
  rebooting, and then the driver do not go back to default status at
  this moment.
* Similar to the flow above. If the device was enabled in BIOS or UEFI,
  the system may switch to Linux without driver fully shutdown.

To avoid the problem, force push the device back to default in probe()
* mt7921e_mcu_fw_pmctrl() : return control privilege to chip side.
* mt7921_wfsys_reset()    : cleanup chip config before resource init.

Error log
[59007.600714] mt7921e 0000:02:00.0: ASIC revision: 79220010
[59010.889773] mt7921e 0000:02:00.0: Message 00000010 (seq 1) timeout
[59010.889786] mt7921e 0000:02:00.0: Failed to get patch semaphore
[59014.217839] mt7921e 0000:02:00.0: Message 00000010 (seq 2) timeout
[59014.217852] mt7921e 0000:02:00.0: Failed to get patch semaphore
[59017.545880] mt7921e 0000:02:00.0: Message 00000010 (seq 3) timeout
[59017.545893] mt7921e 0000:02:00.0: Failed to get patch semaphore
[59020.874086] mt7921e 0000:02:00.0: Message 00000010 (seq 4) timeout
[59020.874099] mt7921e 0000:02:00.0: Failed to get patch semaphore
[59024.202019] mt7921e 0000:02:00.0: Message 00000010 (seq 5) timeout
[59024.202033] mt7921e 0000:02:00.0: Failed to get patch semaphore
[59027.530082] mt7921e 0000:02:00.0: Message 00000010 (seq 6) timeout
[59027.530096] mt7921e 0000:02:00.0: Failed to get patch semaphore
[59030.857888] mt7921e 0000:02:00.0: Message 00000010 (seq 7) timeout
[59030.857904] mt7921e 0000:02:00.0: Failed to get patch semaphore
[59034.185946] mt7921e 0000:02:00.0: Message 00000010 (seq 8) timeout
[59034.185961] mt7921e 0000:02:00.0: Failed to get patch semaphore
[59037.514249] mt7921e 0000:02:00.0: Message 00000010 (seq 9) timeout
[59037.514262] mt7921e 0000:02:00.0: Failed to get patch semaphore
[59040.842362] mt7921e 0000:02:00.0: Message 00000010 (seq 10) timeout
[59040.842375] mt7921e 0000:02:00.0: Failed to get patch semaphore
[59040.923845] mt7921e 0000:02:00.0: hardware init failed

Cc: stable@vger.kernel.org
Fixes: 5c14a5f944 ("mt76: mt7921: introduce mt7921e support")
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Tested-by: Juan Martinez <juan.martinez@amd.com>
Co-developed-by: Leon Yen <leon.yen@mediatek.com>
Signed-off-by: Leon Yen <leon.yen@mediatek.com>
Signed-off-by: Quan Zhou <quan.zhou@mediatek.com>
Signed-off-by: Deren Wu <deren.wu@mediatek.com>
Message-ID: <39fcb7cee08d4ab940d38d82f21897483212483f.1688569385.git.deren.wu@mediatek.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-07-19 16:36:53 +02:00
Alexander Wetzel
1a9f0e2307 wifi: ath10k: Serialize wake_tx_queue ops
commit b719ebc37a upstream.

Serialize the ath10k implementation of the wake_tx_queue ops.
ath10k_mac_op_wake_tx_queue() must not run concurrent since it's using
ieee80211_txq_schedule_start().

The intend of this patch is to sort out an issue discovered in the discussion
referred to by the Link tag.

I can't test it with real hardware and thus just implemented the per-ac queue
lock Felix suggested. One obvious alternative to the per-ac lock would be to
bring back the txqs_lock commit bb2edb7335 ("ath10k: migrate to mac80211 txq
scheduling") dropped.

Fixes: bb2edb7335 ("ath10k: migrate to mac80211 txq scheduling")
Reported-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/519b5bb9-8899-ae7c-4eff-f3116cdfdb56@nbd.name
CC: <stable@vger.kernel.org>
Signed-off-by: Alexander Wetzel <alexander@wetzel-home.de>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230323165527.156414-1-alexander@wetzel-home.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-07-19 16:36:52 +02:00
Hariprasad Kelam
e21994909e octeontx-af: fix hardware timestamp configuration
[ Upstream commit 14bb236b29 ]

MAC block on CN10K (RPM) supports hardware timestamp configuration. The
previous patch which added timestamp configuration support has a bug.
Though the netdev driver requests to disable timestamp configuration,
the driver is always enabling it.

This patch fixes the same.

Fixes: d148920868 ("octeontx2-af: cn10k: RPM hardware timestamp configuration")
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:36:48 +02:00
Vladimir Oltean
af20ce7420 net: dsa: sja1105: always enable the send_meta options
[ Upstream commit a372d66af4 ]

incl_srcpt has the limitation, mentioned in commit b4638af888 ("net:
dsa: sja1105: always enable the INCL_SRCPT option"), that frames with a
MAC DA of 01:80:c2:xx:yy:zz will be received as 01:80:c2:00:00:zz unless
PTP RX timestamping is enabled.

The incl_srcpt option was initially unconditionally enabled, then that
changed with commit 42824463d3 ("net: dsa: sja1105: Limit use of
incl_srcpt to bridge+vlan mode"), then again with b4638af888 ("net:
dsa: sja1105: always enable the INCL_SRCPT option"). Bottom line is that
it now needs to be always enabled, otherwise the driver does not have a
reliable source of information regarding source_port and switch_id for
link-local traffic (tag_8021q VLANs may be imprecise since now they
identify an entire bridging domain when ports are not standalone).

If we accept that PTP RX timestamping (and therefore, meta frame
generation) is always enabled in hardware, then that limitation could be
avoided and packets with any MAC DA can be properly received, because
meta frames do contain the original bytes from the MAC DA of their
associated link-local packet.

This change enables meta frame generation unconditionally, which also
has the nice side effects of simplifying the switch control path
(a switch reset is no longer required on hwtstamping settings change)
and the tagger data path (it no longer needs to be informed whether to
expect meta frames or not - it always does).

Fixes: 227d07a07e ("net: dsa: sja1105: Add support for traffic through standalone ports")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:36:48 +02:00
Guillaume Nault
fda0f1e649 pptp: Fix fib lookup calls.
[ Upstream commit 84bef5b603 ]

PPTP uses pppox sockets (struct pppox_sock). These sockets don't embed
an inet_sock structure, so it's invalid to call inet_sk() on them.

Therefore, the ip_route_output_ports() call in pptp_connect() has two
problems:

  * The tos variable is set with RT_CONN_FLAGS(sk), which calls
    inet_sk() on the pppox socket.

  * ip_route_output_ports() tries to retrieve routing flags using
    inet_sk_flowi_flags(), which is also going to call inet_sk() on the
    pppox socket.

While PPTP doesn't use inet sockets, it's actually really layered on
top of IP and therefore needs a proper way to do fib lookups. So let's
define pptp_route_output() to get a struct rtable from a pptp socket.
Let's also replace the ip_route_output_ports() call of pptp_xmit() for
consistency.

In practice, this means that:

  * pptp_connect() sets ->flowi4_tos and ->flowi4_flags to zero instead
    of using bits of unrelated struct pppox_sock fields.

  * pptp_xmit() now respects ->sk_mark and ->sk_uid.

  * pptp_xmit() now calls the security_sk_classify_flow() security
    hook, thus allowing to set ->flowic_secid.

  * pptp_xmit() now passes the pppox socket to xfrm_lookup_route().

Found by code inspection.

Fixes: 00959ade36 ("PPTP: PPP over IPv4 (Point-to-Point Tunneling Protocol)")
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:36:48 +02:00
Hariprasad Kelam
8499606179 octeontx2-af: Reset MAC features in FLR
[ Upstream commit 2e3e94c2f5 ]

AF driver configures MAC features like internal loopback and PFC upon
receiving the request from PF and its VF netdev. But these
features are not getting reset in FLR.  This patch fixes the issue by
resetting the same.

Fixes: 23999b30ae ("octeontx2-af: Enable or disable CGX internal loopback")
Fixes: 1121f6b02e ("octeontx2-af: Priority flow control configuration support")
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:36:46 +02:00
Hariprasad Kelam
b04872e15f octeontx2-af: Add validation before accessing cgx and lmac
[ Upstream commit 79ebb53772 ]

with the addition of new MAC blocks like CN10K RPM and CN10KB
RPM_USX, LMACs are noncontiguous and CGX blocks are also
noncontiguous. But during RVU driver initialization, the driver
is assuming they are contiguous and trying to access
cgx or lmac with their id which is resulting in kernel panic.

This patch fixes the issue by adding proper checks.

[   23.219150] pc : cgx_lmac_read+0x38/0x70
[   23.219154] lr : rvu_program_channels+0x3f0/0x498
[   23.223852] sp : ffff000100d6fc80
[   23.227158] x29: ffff000100d6fc80 x28: ffff00010009f880 x27:
000000000000005a
[   23.234288] x26: ffff000102586768 x25: 0000000000002500 x24:
fffffffffff0f000

Fixes: 91c6945ea1 ("octeontx2-af: cn10k: Add RPM MAC support")
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:36:45 +02:00
Hariprasad Kelam
425a724a7c octeontx2-af: Fix mapping for NIX block from CGX connection
[ Upstream commit 2e7bc57b97 ]

Firmware configures NIX block mapping for all MAC blocks.
The current implementation reads the configuration and
creates the mapping between RVU PF  and NIX blocks. But
this configuration is only valid for silicons that support
multiple blocks. For all other silicons, all MAC blocks
map to NIX0.

This patch corrects the mapping by adding a check for the same.

Fixes: c5a73b632b ("octeontx2-af: Map NIX block from CGX connection")
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:36:45 +02:00
Hariprasad Kelam
1faafa54bb octeontx2-af: cn10kb: fix interrupt csr addresses
[ Upstream commit 4c5a331cac ]

The current design is that, for asynchronous events like link_up and
link_down firmware raises the interrupt to kernel. The previous patch
which added RPM_USX driver has a bug where it uses old csr addresses
for configuring interrupts. Which is resulting in losing interrupts
from source firmware.

This patch fixes the issue by correcting csr addresses.

Fixes: b9d0fedc62 ("octeontx2-af: cn10kb: Add RPM_USX MAC support")
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:36:45 +02:00
Zhengchao Shao
cd716022c9 mlxsw: minimal: fix potential memory leak in mlxsw_m_linecards_init
[ Upstream commit 08fc75735f ]

The line cards array is not freed in the error path of
mlxsw_m_linecards_init(), which can lead to a memory leak. Fix by
freeing the array in the error path, thereby making the error path
identical to mlxsw_m_linecards_fini().

Fixes: 01328e23a4 ("mlxsw: minimal: Extend module to port mapping with slot index")
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://lore.kernel.org/r/20230630012647.1078002-1-shaozhengchao@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:36:44 +02:00
Pawel Dembicki
82b3e8afba net: dsa: vsc73xx: fix MTU configuration
[ Upstream commit 3cf62c8177 ]

Switch in MAXLEN register stores the maximum size of a data frame.
The MTU size is 18 bytes smaller than the frame size.

The current settings are causing problems with packet forwarding.
This patch fixes the MTU settings to proper values.

Fixes: fb77ffc6ec ("net: dsa: vsc73xx: make the MTU configurable")
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Link: https://lore.kernel.org/r/20230628194327.1765644-1-paweldembicki@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:36:44 +02:00
Nick Child
91a0632e73 ibmvnic: Do not reset dql stats on NON_FATAL err
[ Upstream commit 48538ccb82 ]

All ibmvnic resets, make a call to netdev_tx_reset_queue() when
re-opening the device. netdev_tx_reset_queue() resets the num_queued
and num_completed byte counters. These stats are used in Byte Queue
Limit (BQL) algorithms. The difference between these two stats tracks
the number of bytes currently sitting on the physical NIC. ibmvnic
increases the number of queued bytes though calls to
netdev_tx_sent_queue() in the drivers xmit function. When, VIOS reports
that it is done transmitting bytes, the ibmvnic device increases the
number of completed bytes through calls to netdev_tx_completed_queue().
It is important to note that the driver batches its transmit calls and
num_queued is increased every time that an skb is added to the next
batch, not necessarily when the batch is sent to VIOS for transmission.

Unlike other reset types, a NON FATAL reset will not flush the sub crq
tx buffers. Therefore, it is possible for the batched skb array to be
partially full. So if there is call to netdev_tx_reset_queue() when
re-opening the device, the value of num_queued (0) would not account
for the skb's that are currently batched. Eventually, when the batch
is sent to VIOS, the call to netdev_tx_completed_queue() would increase
num_completed to a value greater than the num_queued. This causes a
BUG_ON crash:

ibmvnic 30000002: Firmware reports error, cause: adapter problem.
Starting recovery...
ibmvnic 30000002: tx error 600
ibmvnic 30000002: tx error 600
ibmvnic 30000002: tx error 600
ibmvnic 30000002: tx error 600
------------[ cut here ]------------
kernel BUG at lib/dynamic_queue_limits.c:27!
Oops: Exception in kernel mode, sig: 5
[....]
NIP dql_completed+0x28/0x1c0
LR ibmvnic_complete_tx.isra.0+0x23c/0x420 [ibmvnic]
Call Trace:
ibmvnic_complete_tx.isra.0+0x3f8/0x420 [ibmvnic] (unreliable)
ibmvnic_interrupt_tx+0x40/0x70 [ibmvnic]
__handle_irq_event_percpu+0x98/0x270
---[ end trace ]---

Therefore, do not reset the dql stats when performing a NON_FATAL reset.

Fixes: 0d97338818 ("ibmvnic: Introduce xmit_more support using batched subCRQ hcalls")
Signed-off-by: Nick Child <nnac123@linux.ibm.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:36:44 +02:00
Martin Habets
048b241b7f sfc: support for devlink port requires MAE access
[ Upstream commit 915057ae79 ]

On systems without MAE permission efx->mae is not initialised,
and trying to lookup an mport results in a NULL pointer
dereference.

Fixes: 25414b2a64 ("sfc: add devlink port support for ef100")
Signed-off-by: Martin Habets <habetsm.xilinx@gmail.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:36:44 +02:00
Tobias Heider
bd95be10a2 Add MODULE_FIRMWARE() for FIRMWARE_TG357766.
[ Upstream commit 046f753da6 ]

Fixes a bug where on the M1 mac mini initramfs-tools fails to
include the necessary firmware into the initrd.

Fixes: c4dab50697 ("tg3: Download 57766 EEE service patch firmware")
Signed-off-by: Tobias Heider <me@tobhe.de>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://lore.kernel.org/r/ZJt7LKzjdz8+dClx@tobhe.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:36:43 +02:00
Vladimir Oltean
89fd65ca2f net: dsa: sja1105: always enable the INCL_SRCPT option
[ Upstream commit b4638af888 ]

Link-local traffic on bridged SJA1105 ports is sometimes tagged by the
hardware with source port information (when the port is under a VLAN
aware bridge).

The tag_8021q source port identification has become more loose
("imprecise") and will report a plausible rather than exact bridge port,
when under a bridge (be it VLAN-aware or VLAN-unaware). But link-local
traffic always needs to know the precise source port.

Modify the driver logic (and therefore: the tagging protocol itself) to
always include the source port information with link-local packets,
regardless of whether the port is standalone, under a VLAN-aware or
VLAN-unaware bridge. This makes it possible for the tagging driver to
give priority to that information over the tag_8021q VLAN header.

The big drawback with INCL_SRCPT is that it makes it impossible to
distinguish between an original MAC DA of 01:80:C2:XX:YY:ZZ and
01:80:C2:AA:BB:ZZ, because the tagger just patches MAC DA bytes 3 and 4
with zeroes. Only if PTP RX timestamping is enabled, the switch will
generate a META follow-up frame containing the RX timestamp and the
original bytes 3 and 4 of the MAC DA. Those will be used to patch up the
original packet. Nonetheless, in the absence of PTP RX timestamping, we
have to live with this limitation, since it is more important to have
the more precise source port information for link-local traffic.

Fixes: d7f9787a76 ("net: dsa: tag_8021q: add support for imprecise RX based on the VBID")
Fixes: 91495f21fc ("net: dsa: tag_8021q: replace the SVL bridging with VLAN-unaware IVL bridging")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:36:43 +02:00
Vladimir Oltean
7095192c74 net: dsa: felix: don't drop PTP frames with tag_8021q when RX timestamping is disabled
[ Upstream commit 2edcfcbb3c ]

The driver implements a workaround for the fact that it doesn't have an
IRQ source to tell it whether PTP frames are available through the
extraction registers, for those frames to be processed and passed
towards the network stack. That workaround is to configure the switch,
through felix_hwtstamp_set() -> felix_update_trapping_destinations(),
to create two copies of PTP packets: one sent over Ethernet to the DSA
master, and one to be consumed through the aforementioned CPU extraction
queue registers.

The reason why we want PTP packets to be consumed through the CPU
extraction registers in the first place is because we want to see their
hardware RX timestamp. With tag_8021q, that is only visible that way,
and it isn't visible with the copy of the packet that's transmitted over
Ethernet.

The problem with the workaround implementation is that it drops the
packet received over Ethernet, in expectation of its copy being present
in the CPU extraction registers. However, if felix_hwtstamp_set() hasn't
run (aka PTP RX timestamping is disabled), the driver will drop the
original PTP frame and there will be no copy of it in the CPU extraction
registers. So, the network stack will simply not see any PTP frame.

Look at the port's trapping configuration to see whether the driver has
previously enabled the CPU extraction registers. If it hasn't, just
don't RX timestamp the frame and let it be passed up the stack by DSA,
which is perfectly fine.

Fixes: 0a6f17c6ae ("net: dsa: tag_ocelot_8021q: add support for PTP timestamping")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:36:43 +02:00
Vladimir Oltean
ad1fb7de46 net: mscc: ocelot: don't keep PTP configuration of all ports in single structure
[ Upstream commit 45d0fcb5bc ]

In a future change, the driver will need to determine whether PTP RX
timestamping is enabled on a port (including whether traps were set up
on that port in particular) and that is currently not possible.

The driver supports different RX filters (L2, L4) and kinds of TX
timestamping (one-step, two-step) on its ports, but it saves all
configuration in a single struct hwtstamp_config that is global to the
switch. So, the latest timestamping configuration on one port
(including a request to disable timestamping) affects what gets reported
for all ports, even though the configuration itself is still individual
to each port.

The port timestamping configurations are only coupled because of the
common structure, so replace the hwtstamp_config with a mask of trapped
protocols saved per port. We also have the ptp_cmd to distinguish
between one-step and two-step PTP timestamping, so with those 2 bits of
information we can fully reconstruct a descriptive struct
hwtstamp_config for each port, during the SIOCGHWTSTAMP ioctl.

Fixes: 4e3b0468e6 ("net: mscc: PTP Hardware Clock (PHC) support")
Fixes: 96ca08c058 ("net: mscc: ocelot: set up traps for PTP packets")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:36:43 +02:00
Vladimir Oltean
ad95418b5d net: mscc: ocelot: don't report that RX timestamping is enabled by default
[ Upstream commit 4fd44b82b7 ]

PTP RX timestamping should be enabled when the user requests it, not by
default. If it is enabled by default, it can be problematic when the
ocelot driver is a DSA master, and it sidesteps what DSA tries to avoid
through __dsa_master_hwtstamp_validate().

Additionally, after the change which made ocelot trap PTP packets only
to the CPU at ocelot_hwtstamp_set() time, it is no longer even true that
RX timestamping is enabled by default, because until ocelot_hwtstamp_set()
is called, the PTP traps are actually not set up. So the rx_filter field
of ocelot->hwtstamp_config reflects an incorrect reality.

Fixes: 96ca08c058 ("net: mscc: ocelot: set up traps for PTP packets")
Fixes: 4e3b0468e6 ("net: mscc: PTP Hardware Clock (PHC) support")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:36:42 +02:00
Cambda Zhu
b83927b956 ipvlan: Fix return value of ipvlan_queue_xmit()
[ Upstream commit 8a9922e7be ]

ipvlan_queue_xmit() should return NET_XMIT_XXX, but
ipvlan_xmit_mode_l2/l3() returns rx_handler_result_t or NET_RX_XXX
in some cases. ipvlan_rcv_frame() will only return RX_HANDLER_CONSUMED
in ipvlan_xmit_mode_l2/l3() because 'local' is true. It's equal to
NET_XMIT_SUCCESS. But dev_forward_skb() can return NET_RX_SUCCESS or
NET_RX_DROP, and returning NET_RX_DROP(NET_XMIT_DROP) will increase
both ipvlan and ipvlan->phy_dev drops counter.

The skb to forward can be treated as xmitted successfully. This patch
makes ipvlan_queue_xmit() return NET_XMIT_SUCCESS for forward skb.

Fixes: 2ad7bf3638 ("ipvlan: Initial check-in of the IPVLAN driver.")
Signed-off-by: Cambda Zhu <cambda@linux.alibaba.com>
Link: https://lore.kernel.org/r/20230626093347.7492-1-cambda@linux.alibaba.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:37 +02:00
Edward Cree
aba32b4c58 sfc: fix crash when reading stats while NIC is resetting
[ Upstream commit d1b355438b ]

efx_net_stats() (.ndo_get_stats64) can be called during an ethtool
 selftest, during which time nic_data->mc_stats is NULL as the NIC has
 been fini'd.  In this case do not attempt to fetch the latest stats
 from the hardware, else we will crash on a NULL dereference:
    BUG: kernel NULL pointer dereference, address: 0000000000000038
    RIP efx_nic_update_stats
    abridged calltrace:
    efx_ef10_update_stats_pf
    efx_net_stats
    dev_get_stats
    dev_seq_printf_stats
Skipping the read is safe, we will simply give out stale stats.
To ensure that the free in efx_ef10_fini_nic() does not race against
 efx_ef10_update_stats_pf(), which could cause a TOCTTOU bug, take the
 efx->stats_lock in fini_nic (it is already held across update_stats).

Fixes: d3142c193d ("sfc: refactor EF10 stats handling")
Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com>
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:36 +02:00
Maxim Kochetkov
0f46802ed6 net: axienet: Move reset before 64-bit DMA detection
[ Upstream commit f1bc9fc4a0 ]

64-bit DMA detection will fail if axienet was started before (by boot
loader, boot ROM, etc). In this state axienet will not start properly.
XAXIDMA_TX_CDESC_OFFSET + 4 register (MM2S_CURDESC_MSB) is used to detect
64-bit DMA capability here. But datasheet says: When DMACR.RS is 1
(axienet is in enabled state), CURDESC_PTR becomes Read Only (RO) and
is used to fetch the first descriptor. So iowrite32()/ioread32() trick
to this register to detect 64-bit DMA will not work.
So move axienet reset before 64-bit DMA detection.

Fixes: f735c40ed9 ("net: axienet: Autodetect 64-bit DMA capability")
Signed-off-by: Maxim Kochetkov <fido_max@inbox.ru>
Reviewed-by: Robert Hancock <robert.hancock@calian.com>
Reviewed-by: Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
Link: https://lore.kernel.org/r/20230622192245.116864-1-fido_max@inbox.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:36 +02:00
Kuniyuki Iwashima
58fa341327 gtp: Fix use-after-free in __gtp_encap_destroy().
[ Upstream commit ce3aee7114 ]

syzkaller reported use-after-free in __gtp_encap_destroy(). [0]

It shows the same process freed sk and touched it illegally.

Commit e198987e7d ("gtp: fix suspicious RCU usage") added lock_sock()
and release_sock() in __gtp_encap_destroy() to protect sk->sk_user_data,
but release_sock() is called after sock_put() releases the last refcnt.

[0]:
BUG: KASAN: slab-use-after-free in instrument_atomic_read_write include/linux/instrumented.h:96 [inline]
BUG: KASAN: slab-use-after-free in atomic_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:541 [inline]
BUG: KASAN: slab-use-after-free in queued_spin_lock include/asm-generic/qspinlock.h:111 [inline]
BUG: KASAN: slab-use-after-free in do_raw_spin_lock include/linux/spinlock.h:186 [inline]
BUG: KASAN: slab-use-after-free in __raw_spin_lock_bh include/linux/spinlock_api_smp.h:127 [inline]
BUG: KASAN: slab-use-after-free in _raw_spin_lock_bh+0x75/0xe0 kernel/locking/spinlock.c:178
Write of size 4 at addr ffff88800dbef398 by task syz-executor.2/2401

CPU: 1 PID: 2401 Comm: syz-executor.2 Not tainted 6.4.0-rc5-01219-gfa0e21fa4443 #2
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x72/0xa0 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:351 [inline]
 print_report+0xcc/0x620 mm/kasan/report.c:462
 kasan_report+0xb2/0xe0 mm/kasan/report.c:572
 check_region_inline mm/kasan/generic.c:181 [inline]
 kasan_check_range+0x39/0x1c0 mm/kasan/generic.c:187
 instrument_atomic_read_write include/linux/instrumented.h:96 [inline]
 atomic_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:541 [inline]
 queued_spin_lock include/asm-generic/qspinlock.h:111 [inline]
 do_raw_spin_lock include/linux/spinlock.h:186 [inline]
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:127 [inline]
 _raw_spin_lock_bh+0x75/0xe0 kernel/locking/spinlock.c:178
 spin_lock_bh include/linux/spinlock.h:355 [inline]
 release_sock+0x1f/0x1a0 net/core/sock.c:3526
 gtp_encap_disable_sock drivers/net/gtp.c:651 [inline]
 gtp_encap_disable+0xb9/0x220 drivers/net/gtp.c:664
 gtp_dev_uninit+0x19/0x50 drivers/net/gtp.c:728
 unregister_netdevice_many_notify+0x97e/0x1520 net/core/dev.c:10841
 rtnl_delete_link net/core/rtnetlink.c:3216 [inline]
 rtnl_dellink+0x3c0/0xb30 net/core/rtnetlink.c:3268
 rtnetlink_rcv_msg+0x450/0xb10 net/core/rtnetlink.c:6423
 netlink_rcv_skb+0x15d/0x450 net/netlink/af_netlink.c:2548
 netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]
 netlink_unicast+0x700/0x930 net/netlink/af_netlink.c:1365
 netlink_sendmsg+0x91c/0xe30 net/netlink/af_netlink.c:1913
 sock_sendmsg_nosec net/socket.c:724 [inline]
 sock_sendmsg+0x1b7/0x200 net/socket.c:747
 ____sys_sendmsg+0x75a/0x990 net/socket.c:2493
 ___sys_sendmsg+0x11d/0x1c0 net/socket.c:2547
 __sys_sendmsg+0xfe/0x1d0 net/socket.c:2576
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3f/0x90 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7f1168b1fe5d
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 73 9f 1b 00 f7 d8 64 89 01 48
RSP: 002b:00007f1167edccc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00000000004bbf80 RCX: 00007f1168b1fe5d
RDX: 0000000000000000 RSI: 00000000200002c0 RDI: 0000000000000003
RBP: 00000000004bbf80 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f1168b80530 R15: 0000000000000000
 </TASK>

Allocated by task 1483:
 kasan_save_stack+0x22/0x50 mm/kasan/common.c:45
 kasan_set_track+0x25/0x30 mm/kasan/common.c:52
 __kasan_slab_alloc+0x59/0x70 mm/kasan/common.c:328
 kasan_slab_alloc include/linux/kasan.h:186 [inline]
 slab_post_alloc_hook mm/slab.h:711 [inline]
 slab_alloc_node mm/slub.c:3451 [inline]
 slab_alloc mm/slub.c:3459 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3466 [inline]
 kmem_cache_alloc+0x16d/0x340 mm/slub.c:3475
 sk_prot_alloc+0x5f/0x280 net/core/sock.c:2073
 sk_alloc+0x34/0x6c0 net/core/sock.c:2132
 inet6_create net/ipv6/af_inet6.c:192 [inline]
 inet6_create+0x2c7/0xf20 net/ipv6/af_inet6.c:119
 __sock_create+0x2a1/0x530 net/socket.c:1535
 sock_create net/socket.c:1586 [inline]
 __sys_socket_create net/socket.c:1623 [inline]
 __sys_socket_create net/socket.c:1608 [inline]
 __sys_socket+0x137/0x250 net/socket.c:1651
 __do_sys_socket net/socket.c:1664 [inline]
 __se_sys_socket net/socket.c:1662 [inline]
 __x64_sys_socket+0x72/0xb0 net/socket.c:1662
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3f/0x90 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x72/0xdc

Freed by task 2401:
 kasan_save_stack+0x22/0x50 mm/kasan/common.c:45
 kasan_set_track+0x25/0x30 mm/kasan/common.c:52
 kasan_save_free_info+0x2e/0x50 mm/kasan/generic.c:521
 ____kasan_slab_free mm/kasan/common.c:236 [inline]
 ____kasan_slab_free mm/kasan/common.c:200 [inline]
 __kasan_slab_free+0x10c/0x1b0 mm/kasan/common.c:244
 kasan_slab_free include/linux/kasan.h:162 [inline]
 slab_free_hook mm/slub.c:1781 [inline]
 slab_free_freelist_hook mm/slub.c:1807 [inline]
 slab_free mm/slub.c:3786 [inline]
 kmem_cache_free+0xb4/0x490 mm/slub.c:3808
 sk_prot_free net/core/sock.c:2113 [inline]
 __sk_destruct+0x500/0x720 net/core/sock.c:2207
 sk_destruct+0xc1/0xe0 net/core/sock.c:2222
 __sk_free+0xed/0x3d0 net/core/sock.c:2233
 sk_free+0x7c/0xa0 net/core/sock.c:2244
 sock_put include/net/sock.h:1981 [inline]
 __gtp_encap_destroy+0x165/0x1b0 drivers/net/gtp.c:634
 gtp_encap_disable_sock drivers/net/gtp.c:651 [inline]
 gtp_encap_disable+0xb9/0x220 drivers/net/gtp.c:664
 gtp_dev_uninit+0x19/0x50 drivers/net/gtp.c:728
 unregister_netdevice_many_notify+0x97e/0x1520 net/core/dev.c:10841
 rtnl_delete_link net/core/rtnetlink.c:3216 [inline]
 rtnl_dellink+0x3c0/0xb30 net/core/rtnetlink.c:3268
 rtnetlink_rcv_msg+0x450/0xb10 net/core/rtnetlink.c:6423
 netlink_rcv_skb+0x15d/0x450 net/netlink/af_netlink.c:2548
 netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]
 netlink_unicast+0x700/0x930 net/netlink/af_netlink.c:1365
 netlink_sendmsg+0x91c/0xe30 net/netlink/af_netlink.c:1913
 sock_sendmsg_nosec net/socket.c:724 [inline]
 sock_sendmsg+0x1b7/0x200 net/socket.c:747
 ____sys_sendmsg+0x75a/0x990 net/socket.c:2493
 ___sys_sendmsg+0x11d/0x1c0 net/socket.c:2547
 __sys_sendmsg+0xfe/0x1d0 net/socket.c:2576
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3f/0x90 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x72/0xdc

The buggy address belongs to the object at ffff88800dbef300
 which belongs to the cache UDPv6 of size 1344
The buggy address is located 152 bytes inside of
 freed 1344-byte region [ffff88800dbef300, ffff88800dbef840)

The buggy address belongs to the physical page:
page:00000000d31bfed5 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88800dbeed40 pfn:0xdbe8
head:00000000d31bfed5 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
memcg:ffff888008ee0801
flags: 0x100000000010200(slab|head|node=0|zone=1)
page_type: 0xffffffff()
raw: 0100000000010200 ffff88800c7a3000 dead000000000122 0000000000000000
raw: ffff88800dbeed40 0000000080160015 00000001ffffffff ffff888008ee0801
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff88800dbef280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88800dbef300: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88800dbef380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                            ^
 ffff88800dbef400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88800dbef480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb

Fixes: e198987e7d ("gtp: fix suspicious RCU usage")
Reported-by: syzkaller <syzkaller@googlegroups.com>
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Pablo Neira Ayuso <pablo@netfilter.org>
Link: https://lore.kernel.org/r/20230622213231.24651-1-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:36 +02:00
Eric Dumazet
bc16fc6359 bonding: do not assume skb mac_header is set
[ Upstream commit 6a940abdef ]

Drivers must not assume in their ndo_start_xmit() that
skbs have their mac_header set. skb->data is all what is needed.

bonding seems to be one of the last offender as caught by syzbot:

WARNING: CPU: 1 PID: 12155 at include/linux/skbuff.h:2907 skb_mac_offset include/linux/skbuff.h:2913 [inline]
WARNING: CPU: 1 PID: 12155 at include/linux/skbuff.h:2907 bond_xmit_hash drivers/net/bonding/bond_main.c:4170 [inline]
WARNING: CPU: 1 PID: 12155 at include/linux/skbuff.h:2907 bond_xmit_3ad_xor_slave_get drivers/net/bonding/bond_main.c:5149 [inline]
WARNING: CPU: 1 PID: 12155 at include/linux/skbuff.h:2907 bond_3ad_xor_xmit drivers/net/bonding/bond_main.c:5186 [inline]
WARNING: CPU: 1 PID: 12155 at include/linux/skbuff.h:2907 __bond_start_xmit drivers/net/bonding/bond_main.c:5442 [inline]
WARNING: CPU: 1 PID: 12155 at include/linux/skbuff.h:2907 bond_start_xmit+0x14ab/0x19d0 drivers/net/bonding/bond_main.c:5470
Modules linked in:
CPU: 1 PID: 12155 Comm: syz-executor.3 Not tainted 6.1.30-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
RIP: 0010:skb_mac_header include/linux/skbuff.h:2907 [inline]
RIP: 0010:skb_mac_offset include/linux/skbuff.h:2913 [inline]
RIP: 0010:bond_xmit_hash drivers/net/bonding/bond_main.c:4170 [inline]
RIP: 0010:bond_xmit_3ad_xor_slave_get drivers/net/bonding/bond_main.c:5149 [inline]
RIP: 0010:bond_3ad_xor_xmit drivers/net/bonding/bond_main.c:5186 [inline]
RIP: 0010:__bond_start_xmit drivers/net/bonding/bond_main.c:5442 [inline]
RIP: 0010:bond_start_xmit+0x14ab/0x19d0 drivers/net/bonding/bond_main.c:5470
Code: 8b 7c 24 30 e8 76 dd 1a 01 48 85 c0 74 0d 48 89 c3 e8 29 67 2e fe e9 15 ef ff ff e8 1f 67 2e fe e9 10 ef ff ff e8 15 67 2e fe <0f> 0b e9 45 f8 ff ff e8 09 67 2e fe e9 dc fa ff ff e8 ff 66 2e fe
RSP: 0018:ffffc90002fff6e0 EFLAGS: 00010283
RAX: ffffffff835874db RBX: 000000000000ffff RCX: 0000000000040000
RDX: ffffc90004dcf000 RSI: 00000000000000b5 RDI: 00000000000000b6
RBP: ffffc90002fff8b8 R08: ffffffff83586d16 R09: ffffffff83586584
R10: 0000000000000007 R11: ffff8881599fc780 R12: ffff88811b6a7b7e
R13: 1ffff110236d4f6f R14: ffff88811b6a7ac0 R15: 1ffff110236d4f76
FS: 00007f2e9eb47700(0000) GS:ffff8881f6b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e421000 CR3: 000000010e6d4000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
[<ffffffff8471a49f>] netdev_start_xmit include/linux/netdevice.h:4925 [inline]
[<ffffffff8471a49f>] __dev_direct_xmit+0x4ef/0x850 net/core/dev.c:4380
[<ffffffff851d845b>] dev_direct_xmit include/linux/netdevice.h:3043 [inline]
[<ffffffff851d845b>] packet_direct_xmit+0x18b/0x300 net/packet/af_packet.c:284
[<ffffffff851c7472>] packet_snd net/packet/af_packet.c:3112 [inline]
[<ffffffff851c7472>] packet_sendmsg+0x4a22/0x64d0 net/packet/af_packet.c:3143
[<ffffffff8467a4b2>] sock_sendmsg_nosec net/socket.c:716 [inline]
[<ffffffff8467a4b2>] sock_sendmsg net/socket.c:736 [inline]
[<ffffffff8467a4b2>] __sys_sendto+0x472/0x5f0 net/socket.c:2139
[<ffffffff8467a715>] __do_sys_sendto net/socket.c:2151 [inline]
[<ffffffff8467a715>] __se_sys_sendto net/socket.c:2147 [inline]
[<ffffffff8467a715>] __x64_sys_sendto+0xe5/0x100 net/socket.c:2147
[<ffffffff8553071f>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
[<ffffffff8553071f>] do_syscall_64+0x2f/0x50 arch/x86/entry/common.c:80
[<ffffffff85600087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

Fixes: 7b8fc0103b ("bonding: add a vlan+srcmac tx hashing option")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jarod Wilson <jarod@redhat.com>
Cc: Moshe Tal <moshet@nvidia.com>
Cc: Jussi Maki <joamaki@gmail.com>
Cc: Jay Vosburgh <j.vosburgh@gmail.com>
Cc: Andy Gospodarek <andy@greyhouse.net>
Cc: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20230622152304.2137482-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:35 +02:00
Bartosz Golaszewski
723006bee3 net: stmmac: fix double serdes powerdown
[ Upstream commit c4fc88ad2a ]

Commit 49725ffc15 ("net: stmmac: power up/down serdes in
stmmac_open/release") correctly added a call to the serdes_powerdown()
callback to stmmac_release() but did not remove the one from
stmmac_remove() which leads to a doubled call to serdes_powerdown().

This can lead to all kinds of problems: in the case of the qcom ethqos
driver, it caused an unbalanced regulator disable splat.

Fixes: 49725ffc15 ("net: stmmac: power up/down serdes in stmmac_open/release")
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Acked-by: Junxiao Chang <junxiao.chang@intel.com>
Reviewed-by: Andrew Halaney <ahalaney@redhat.com>
Tested-by: Andrew Halaney <ahalaney@redhat.com>
Link: https://lore.kernel.org/r/20230621135537.376649-1-brgl@bgdev.pl
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:35 +02:00
Vinicius Costa Gomes
9e108c8516 igc: Work around HW bug causing missing timestamps
[ Upstream commit c789ad7cbe ]

There's an hardware issue that can cause missing timestamps. The bug
is that the interrupt is only cleared if the IGC_TXSTMPH_0 register is
read.

The bug can cause a race condition if a timestamp is captured at the
wrong time, and we will miss that timestamp. To reduce the time window
that the problem is able to happen, in case no timestamp was ready, we
read the "previous" value of the timestamp registers, and we compare
with the "current" one, if it didn't change we can be reasonably sure
that no timestamp was captured. If they are different, we use the new
value as the captured timestamp.

The HW bug is not easy to reproduce, got to reproduce it when smashing
the NIC with timestamping requests from multiple applications (e.g.
multiple ntpperf instances + ptp4l), after 10s of minutes.

This workaround has more impact when multiple timestamp registers are
used, and the IGC_TXSTMPH_0 register always need to be read, so the
interrupt is cleared.

Fixes: 2c344ae245 ("igc: Add support for TX timestamping")
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Tested-by: Naama Meir <naamax.meir@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:35 +02:00
Vinicius Costa Gomes
5ed04b95c7 igc: Retrieve TX timestamp during interrupt handling
[ Upstream commit afa141583d ]

When the interrupt is handled, the TXTT_0 bit in the TSYNCTXCTL
register should already be set and the timestamp value already loaded
in the appropriate register.

This simplifies the handling, and reduces the latency for retrieving
the TX timestamp, which increase the amount of TX timestamps that can
be handled in a given time period.

As the "work" function doesn't run in a workqueue anymore, rename it
to something more sensible, a event handler.

Using ntpperf[1] we can see the following performance improvements:

Before:

$ sudo ./ntpperf -i enp3s0 -m 10:22:22:22:22:21 -d 192.168.1.3 -s 172.18.0.0/16 -I -H -o -37
               |          responses            |     TX timestamp offset (ns)
rate   clients |  lost invalid   basic  xleave |    min    mean     max stddev
1000       100   0.00%   0.00%   0.00% 100.00%      -56      +9     +52     19
1500       150   0.00%   0.00%   0.00% 100.00%      -40     +30     +75     22
2250       225   0.00%   0.00%   0.00% 100.00%      -11     +29     +72     15
3375       337   0.00%   0.00%   0.00% 100.00%      -18     +40     +88     22
5062       506   0.00%   0.00%   0.00% 100.00%      -19     +23     +77     15
7593       759   0.00%   0.00%   0.00% 100.00%       +7     +47   +5168     43
11389     1138   0.00%   0.00%   0.00% 100.00%      -11     +41   +5240     39
17083     1708   0.00%   0.00%   0.00% 100.00%      +19     +60   +5288     50
25624     2562   0.00%   0.00%   0.00% 100.00%       +1     +56   +5368     58
38436     3843   0.00%   0.00%   0.00% 100.00%      -84     +12   +8847     66
57654     5765   0.00%   0.00% 100.00%   0.00%
86481     8648   0.00%   0.00% 100.00%   0.00%
129721   12972   0.00%   0.00% 100.00%   0.00%
194581   16384   0.00%   0.00% 100.00%   0.00%
291871   16384  27.35%   0.00%  72.65%   0.00%
437806   16384  50.05%   0.00%  49.95%   0.00%

After:

$ sudo ./ntpperf -i enp3s0 -m 10:22:22:22:22:21 -d 192.168.1.3 -s 172.18.0.0/16 -I -H -o -37
               |          responses            |     TX timestamp offset (ns)
rate   clients |  lost invalid   basic  xleave |    min    mean     max stddev
1000       100   0.00%   0.00%   0.00% 100.00%      -44      +0     +61     19
1500       150   0.00%   0.00%   0.00% 100.00%       -6     +39     +81     16
2250       225   0.00%   0.00%   0.00% 100.00%      -22     +25     +69     15
3375       337   0.00%   0.00%   0.00% 100.00%      -28     +15     +56     14
5062       506   0.00%   0.00%   0.00% 100.00%       +7     +78    +143     27
7593       759   0.00%   0.00%   0.00% 100.00%      -54     +24    +144     47
11389     1138   0.00%   0.00%   0.00% 100.00%      -90     -33     +28     21
17083     1708   0.00%   0.00%   0.00% 100.00%      -50      -2     +35     14
25624     2562   0.00%   0.00%   0.00% 100.00%      -62      +7     +66     23
38436     3843   0.00%   0.00%   0.00% 100.00%      -33     +30   +5395     36
57654     5765   0.00%   0.00% 100.00%   0.00%
86481     8648   0.00%   0.00% 100.00%   0.00%
129721   12972   0.00%   0.00% 100.00%   0.00%
194581   16384  19.50%   0.00%  80.50%   0.00%
291871   16384  35.81%   0.00%  64.19%   0.00%
437806   16384  55.40%   0.00%  44.60%   0.00%

[1] https://github.com/mlichvar/ntpperf

Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Reviewed-by: Kurt Kanzenbach <kurt@linutronix.de>
Tested-by: Naama Meir <naamax.meir@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Stable-dep-of: c789ad7cbe ("igc: Work around HW bug causing missing timestamps")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:35 +02:00
Vinicius Costa Gomes
8af2af0ef2 igc: Check if hardware TX timestamping is enabled earlier
[ Upstream commit ce58c7cc8b ]

Before requesting a packet transmission to be hardware timestamped,
check if the user has TX timestamping enabled. Fixes an issue that if
a packet was internally forwarded to the NIC, and it had the
SKBTX_HW_TSTAMP flag set, the driver would mark that timestamp as
skipped.

In reality, that timestamp was "not for us", as TX timestamp could
never be enabled in the NIC.

Checking if the TX timestamping is enabled earlier has a secondary
effect that when TX timestamping is disabled, there's no need to check
for timestamp timeouts.

We should only take care to free any pending timestamp when TX
timestamping is disabled, as that skb would never be released
otherwise.

Fixes: 2c344ae245 ("igc: Add support for TX timestamping")
Suggested-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Tested-by: Naama Meir <naamax.meir@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:35 +02:00
Vinicius Costa Gomes
f4e452c347 igc: Fix race condition in PTP tx code
[ Upstream commit 9c50e2b150 ]

Currently, the igc driver supports timestamping only one tx packet at a
time. During the transmission flow, the skb that requires hardware
timestamping is saved in adapter->ptp_tx_skb. Once hardware has the
timestamp, an interrupt is delivered, and adapter->ptp_tx_work is
scheduled. In igc_ptp_tx_work(), we read the timestamp register, update
adapter->ptp_tx_skb, and notify the network stack.

While the thread executing the transmission flow (the user process
running in kernel mode) and the thread executing ptp_tx_work don't
access adapter->ptp_tx_skb concurrently, there are two other places
where adapter->ptp_tx_skb is accessed: igc_ptp_tx_hang() and
igc_ptp_suspend().

igc_ptp_tx_hang() is executed by the adapter->watchdog_task worker
thread which runs periodically so it is possible we have two threads
accessing ptp_tx_skb at the same time. Consider the following scenario:
right after __IGC_PTP_TX_IN_PROGRESS is set in igc_xmit_frame_ring(),
igc_ptp_tx_hang() is executed. Since adapter->ptp_tx_start hasn't been
written yet, this is considered a timeout and adapter->ptp_tx_skb is
cleaned up.

This patch fixes the issue described above by adding the ptp_tx_lock to
protect access to ptp_tx_skb and ptp_tx_start fields from igc_adapter.
Since igc_xmit_frame_ring() called in atomic context by the networking
stack, ptp_tx_lock is defined as a spinlock, and the irq safe variants
of lock/unlock are used.

With the introduction of the ptp_tx_lock, the __IGC_PTP_TX_IN_PROGRESS
flag doesn't provide much of a use anymore so this patch gets rid of it.

Fixes: 2c344ae245 ("igc: Add support for TX timestamping")
Signed-off-by: Andre Guedes <andre.guedes@intel.com>
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Reviewed-by: Kurt Kanzenbach <kurt@linutronix.de>
Tested-by: Naama Meir <naamax.meir@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:34 +02:00
Jimmy Assarsson
97678c4718 can: kvaser_pciefd: Set hardware timestamp on transmitted packets
[ Upstream commit ec681b91be ]

Set hardware timestamp on transmitted packets.

Fixes: 26ad340e58 ("can: kvaser_pciefd: Add driver for Kvaser PCIEcan devices")
Signed-off-by: Jimmy Assarsson <extja@kvaser.com>
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/20230529134248.752036-5-extja@kvaser.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:34 +02:00
Jimmy Assarsson
aca3328e46 can: kvaser_pciefd: Add function to set skb hwtstamps
[ Upstream commit 2d55e9f9b4 ]

Add new function, kvaser_pciefd_set_skb_timestamp(), to set skb hwtstamps.

Signed-off-by: Jimmy Assarsson <extja@kvaser.com>
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/20230529134248.752036-4-extja@kvaser.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Stable-dep-of: ec681b91be ("can: kvaser_pciefd: Set hardware timestamp on transmitted packets")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:34 +02:00
Dmitry Antipov
122c1028b2 wifi: ath9k: convert msecs to jiffies where needed
[ Upstream commit 2aa083acea ]

Since 'ieee80211_queue_delayed_work()' expects timeout in
jiffies and not milliseconds, 'msecs_to_jiffies()' should
be used in 'ath_restart_work()' and '__ath9k_flush()'.

Fixes: d63ffc45c5 ("ath9k: rename tx_complete_work to hw_check_work")
Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230613134655.248728-1-dmantipov@yandex.ru
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:33 +02:00
Johannes Berg
516e5634de wifi: iwlwifi: mvm: check only affected links
[ Upstream commit de10760081 ]

When hostapd starts up, it may start up with only one link
while the other is still scanning for overlapping BSSes. A
station might start to connect at this point, but we run
into this warning instead. Since there's no need to check
for _all_ links, restrict the check to just the affected
links that the STA will be using.

Fixes: 57974a55d9 ("wifi: iwlwifi: mvm: refactor iwl_mvm_mac_sta_state_common()")
Reported-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230620125813.c3d5a006ec21.Ib4715381f598f4c18d67cd9598ebd5cdbe7d2b09@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:33 +02:00
Johannes Berg
16e603c36d wifi: iwlwifi: mvm: indicate HW decrypt for beacon protection
[ Upstream commit 2db72b8a70 ]

We've already done the 'decryption' here, so tell
mac80211 it need not do it again.

Fixes: b1fdc2505a ("iwlwifi: mvm: advertise BIGTK client support if available")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230620125813.a50cf68fbf2e.Ieceacbe3789d81ea02ae085ad8d1f8813a33c31b@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:33 +02:00
Anjaneyulu
f71d0fc407 wifi: iwlwifi: pcie: fix NULL pointer dereference in iwl_pcie_irq_rx_msix_handler()
[ Upstream commit 1902f1953b ]

rxq can be NULL only when trans_pcie->rxq is NULL and entry->entry
is zero. For the case when entry->entry is not equal to 0, rxq
won't be NULL even if trans_pcie->rxq is NULL. Modify checker to
check for trans_pcie->rxq.

Fixes: abc599efa6 ("iwlwifi: pcie: don't crash when rx queues aren't allocated in interrupt")
Signed-off-by: Anjaneyulu <pagadala.yesu.anjaneyulu@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230614123446.5a5eb3889a4a.I375a1d58f16b48cd2044e7b7caddae512d7c86fd@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:31 +02:00
Johannes Berg
172a371b60 wifi: iwlwifi: pull from TXQs with softirqs disabled
[ Upstream commit 96fb6f47db ]

In mac80211, it's required that we pull from TXQs by calling
ieee80211_tx_dequeue() only with softirqs disabled. However,
in iwl_mvm_queue_state_change() we're often called with them
enabled, e.g. from flush if anything was flushed, triggering
a mac80211 warning.

Fix that by disabling the softirqs across the TX call.

Fixes: cfbc6c4c5b ("iwlwifi: mvm: support mac80211 TXQs model")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230614123446.0feef7fa81db.I4dd62542d955b40dd8f0af34fa4accb9d0d17c7e@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:31 +02:00
Johannes Berg
56b0c09d51 wifi: iwlwifi: mvm: correctly access HE/EHT sband capa
[ Upstream commit f912959875 ]

We can't just dereference the sband->iftype_data pointer,
that's an array so we need to access the right entry. Use
the previously introduced helper functions to do that.

There are also cases, e.g. when loading with disable_11ax=1,
where the pointer might be NULL but we still attempt to use
it, causing a crash.

Fixes: 529281bdf0 ("iwlwifi: mvm: limit TLC according to our HE capabilities")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230614123446.a1f2b17ee39b.I8808120be744be8804815ce9e3e24ce6d2b424e3@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:31 +02:00
Gregory Greenman
726bd484d5 wifi: iwlwifi: mvm: add support for Extra EHT LTF
[ Upstream commit 18c0ffb404 ]

Add support for Extra EHT LTF defined in 9.4.2.313
EHT Capabilities element.

Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230613155501.de019d7cc174.I806f0f6042b89274192701a60b4f7900822db666@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Stable-dep-of: f912959875 ("wifi: iwlwifi: mvm: correctly access HE/EHT sband capa")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:30 +02:00
Johannes Berg
cbebaa71da wifi: mac80211: add helpers to access sband iftype data
[ Upstream commit 1ec7291e24 ]

There's quite a bit of code accessing sband iftype data
(HE, HE 6 GHz, EHT) and we always need to remember to use
the ieee80211_vif_type_p2p() helper. Add new helpers to
directly get it from the sband/vif rather than having to
call ieee80211_vif_type_p2p().

Convert most code with the following spatch:

    @@
    expression vif, sband;
    @@
    -ieee80211_get_he_iftype_cap(sband, ieee80211_vif_type_p2p(vif))
    +ieee80211_get_he_iftype_cap_vif(sband, vif)

    @@
    expression vif, sband;
    @@
    -ieee80211_get_eht_iftype_cap(sband, ieee80211_vif_type_p2p(vif))
    +ieee80211_get_eht_iftype_cap_vif(sband, vif)

    @@
    expression vif, sband;
    @@
    -ieee80211_get_he_6ghz_capa(sband, ieee80211_vif_type_p2p(vif))
    +ieee80211_get_he_6ghz_capa_vif(sband, vif)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230604120651.db099f49e764.Ie892966c49e22c7b7ee1073bc684f142debfdc84@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Stable-dep-of: f912959875 ("wifi: iwlwifi: mvm: correctly access HE/EHT sband capa")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:30 +02:00
Ziyang Huang
c36289e3c5 wifi: ath11k: Add missing hw_ops->get_ring_selector() for IPQ5018
[ Upstream commit ce282d8de7 ]

During sending data after clients connected, hw_ops->get_ring_selector()
will be called. But for IPQ5018, this member isn't set, and the
following NULL pointer exception will be occurred:

	[   38.840478] 8<--- cut here ---
	[   38.840517] Unable to handle kernel NULL pointer dereference at virtual address 00000000
	...
	[   38.923161] PC is at 0x0
	[   38.927930] LR is at ath11k_dp_tx+0x70/0x730 [ath11k]
	...
	[   39.063264] Process hostapd (pid: 1034, stack limit = 0x801ceb3d)
	[   39.068994] Stack: (0x856a9a68 to 0x856aa000)
	...
	[   39.438467] [<7f323804>] (ath11k_dp_tx [ath11k]) from [<7f314e6c>] (ath11k_mac_op_tx+0x80/0x190 [ath11k])
	[   39.446607] [<7f314e6c>] (ath11k_mac_op_tx [ath11k]) from [<7f17dbe0>] (ieee80211_handle_wake_tx_queue+0x7c/0xc0 [mac80211])
	[   39.456162] [<7f17dbe0>] (ieee80211_handle_wake_tx_queue [mac80211]) from [<7f174450>] (ieee80211_probereq_get+0x584/0x704 [mac80211])
	[   39.467443] [<7f174450>] (ieee80211_probereq_get [mac80211]) from [<7f178c40>] (ieee80211_tx_prepare_skb+0x1f8/0x248 [mac80211])
	[   39.479334] [<7f178c40>] (ieee80211_tx_prepare_skb [mac80211]) from [<7f179e28>] (__ieee80211_subif_start_xmit+0x32c/0x3d4 [mac80211])
	[   39.491053] [<7f179e28>] (__ieee80211_subif_start_xmit [mac80211]) from [<7f17af08>] (ieee80211_tx_control_port+0x19c/0x288 [mac80211])
	[   39.502946] [<7f17af08>] (ieee80211_tx_control_port [mac80211]) from [<7f0fc704>] (nl80211_tx_control_port+0x174/0x1d4 [cfg80211])
	[   39.515017] [<7f0fc704>] (nl80211_tx_control_port [cfg80211]) from [<808ceac4>] (genl_rcv_msg+0x154/0x340)
	[   39.526814] [<808ceac4>] (genl_rcv_msg) from [<808cdb74>] (netlink_rcv_skb+0xb8/0x11c)
	[   39.536446] [<808cdb74>] (netlink_rcv_skb) from [<808ce1d0>] (genl_rcv+0x28/0x34)
	[   39.544344] [<808ce1d0>] (genl_rcv) from [<808cd234>] (netlink_unicast+0x174/0x274)
	[   39.551895] [<808cd234>] (netlink_unicast) from [<808cd510>] (netlink_sendmsg+0x1dc/0x440)
	[   39.559362] [<808cd510>] (netlink_sendmsg) from [<808596e0>] (____sys_sendmsg+0x1a8/0x1fc)
	[   39.567697] [<808596e0>] (____sys_sendmsg) from [<8085b1a8>] (___sys_sendmsg+0xa4/0xdc)
	[   39.575941] [<8085b1a8>] (___sys_sendmsg) from [<8085b310>] (sys_sendmsg+0x44/0x74)
	[   39.583841] [<8085b310>] (sys_sendmsg) from [<80300060>] (ret_fast_syscall+0x0/0x40)
	...
	[   39.620734] Code: bad PC value
	[   39.625869] ---[ end trace 8aef983ad3cbc032 ]---

Fixes: ba60f2793d ("wifi: ath11k: initialize hw_ops for IPQ5018")
Signed-off-by: Ziyang Huang <hzyitc@outlook.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/TYZPR01MB5556D6E3F63EAB5129D11420C953A@TYZPR01MB5556.apcprd01.prod.exchangelabs.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:30 +02:00
Ziyang Huang
5fa5d8a992 wifi: ath11k: Restart firmware after cold boot calibration for IPQ5018
[ Upstream commit 80c5390e1f ]

Restart is required after cold boot calibration on IPQ5018. Otherwise,
we get the following exception:

	[   14.412829] qcom-q6-mpd cd00000.remoteproc: fatal error received: err_smem_ver.2.1:
	[   14.412829] QC Image Version : QC_IMAGE_VERSION_STRING=WLAN.HK.2.6.0.1-00974-QCAHKSWPL_SILICONZ-1
	[   14.412829] Image Variant : IMAGE_VARIANT_STRING=5018.wlanfw2.map_spr_spr_evalQ
	[   14.412829] DALSysLogEvent.c:174 Assertion 0 failed param0 :zero,param1 :zero,param2 :zero
	[   14.412829] Thread ID : 0x00000048 Thread name : WLAN RT0 Process ID : 0x00000001 Process name :wlan0
	[   14.412829]
	[   14.412829] Registers:
	[   14.412829] SP : 0x4c81c120
	[   14.412829] FP : 0x4c81c138
	[   14.412829] PC : 0xb022c590
	[   14.412829] SSR : 0x00000000
	[   14.412829] BADVA : 0x00000000
	[   14.412829] LR : 0xb0008490
	[   14.412829]
	[   14.412829] StackDump
	[   14.412829] from:0x4c81c120
	[   14.412829] to: 0x00000000:
	[   14.412829]
	[   14.463006] remoteproc remoteproc0: crash detected in cd00000.remoteproc: type fatal error

Fixes: 8dfe875aa2 ("wifi: ath11k: update hw params for IPQ5018")
Signed-off-by: Ziyang Huang <hzyitc@outlook.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/TYZPR01MB55566969818BD4B49E770445C953A@TYZPR01MB5556.apcprd01.prod.exchangelabs.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:30 +02:00
Ziyang Huang
9485d72433 wifi: ath11k: Add missing ops config for IPQ5018 in ath11k_ahb_probe()
[ Upstream commit 469ddb20ca ]

Without this patch, the IPQ5018 WiFi will fail and print the following
logs:

	[   11.033179] ath11k c000000.wifi: unsupported device type 7
	[   11.033223] ath11k: probe of c000000.wifi failed with error -95

Fixes: 25edca7bb1 ("wifi: ath11k: add ipq5018 device support")
Signed-off-by: Ziyang Huang <hzyitc@outlook.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/TYZPR01MB5556D7AA10ABEDDDD2D8F39EC953A@TYZPR01MB5556.apcprd01.prod.exchangelabs.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:30 +02:00
Jiasheng Jiang
da336c8bc9 wifi: ath11k: Add missing check for ioremap
[ Upstream commit 16e0077e14 ]

Add check for ioremap() and return the error if it fails in order to
guarantee the success of ioremap(), same as in
ath11k_qmi_load_file_target_mem().

Fixes: 6ac04bdc5e ("ath11k: Use reserved host DDR addresses from DT for PCI devices")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230608022858.27405-1-jiasheng@iscas.ac.cn
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:30 +02:00
Mukesh Sisodiya
ff800b0c47 wifi: iwlwifi: fw: print PC register value instead of address
[ Upstream commit 2b69d242e2 ]

The program counter address is read from the TLV and
PC address is printed in debug messages.
Read the value at PC address and print the value
instead of the register address.

Fixes: 5e31b3df86 ("wifi: iwlwifi: dbg: print pc register data once fw dump occurred")
Signed-off-by: Mukesh Sisodiya <mukesh.sisodiya@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230612184434.e5a5f18f1b2c.Ib6117a4e7f66a075913241cc81477c0059953d5d@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:29 +02:00
Mukesh Sisodiya
3e3c05ab2f wifi: iwlwifi: mvm: Handle return value for iwl_mvm_sta_init
[ Upstream commit 8d507812cb ]

sta_init function can fail and if it returns an error then
driver should not send the request to fw to add a station.

Fixes: 69aef84805 ("wifi: iwlwifi: mvm: refactor iwl_mvm_add_sta(), iwl_mvm_rm_sta()")
Signed-off-by: Mukesh Sisodiya <mukesh.sisodiya@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230612184434.1ecd293539e8.I5ec6aab387bb2fe743a7402581beaeb9c801d31f@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:29 +02:00
Remi Pommarel
4351f69966 wifi: ath9k: Fix possible stall on ath9k_txq_list_has_key()
[ Upstream commit 75086cc6de ]

On EDMA capable hardware, ath9k_txq_list_has_key() can enter infinite
loop if it is called while all txq_fifos have packets that use different
key that the one we are looking for. Fix it by exiting the loop if all
txq_fifos have been checked already.

Because this loop is called under spin_lock_bh() (see ath_txq_lock) it
causes the following rcu stall:

rcu: INFO: rcu_sched self-detected stall on CPU
ath10k_pci 0000:01:00.0: failed to read temperature -11
rcu:    1-....: (5254 ticks this GP) idle=189/1/0x4000000000000002 softirq=8442983/8442984 fqs=2579
        (t=5257 jiffies g=17983297 q=334)
Task dump for CPU 1:
task:hostapd         state:R  running task     stack:    0 pid:  297 ppid:   289 flags:0x0000000a
Call trace:
 dump_backtrace+0x0/0x170
 show_stack+0x1c/0x24
 sched_show_task+0x140/0x170
 dump_cpu_task+0x48/0x54
 rcu_dump_cpu_stacks+0xf0/0x134
 rcu_sched_clock_irq+0x8d8/0x9fc
 update_process_times+0xa0/0xec
 tick_sched_timer+0x5c/0xd0
 __hrtimer_run_queues+0x154/0x320
 hrtimer_interrupt+0x120/0x2f0
 arch_timer_handler_virt+0x38/0x44
 handle_percpu_devid_irq+0x9c/0x1e0
 handle_domain_irq+0x64/0x90
 gic_handle_irq+0x78/0xb0
 call_on_irq_stack+0x28/0x38
 do_interrupt_handler+0x54/0x5c
 el1_interrupt+0x2c/0x4c
 el1h_64_irq_handler+0x14/0x1c
 el1h_64_irq+0x74/0x78
 ath9k_txq_has_key+0x1bc/0x250 [ath9k]
 ath9k_set_key+0x1cc/0x3dc [ath9k]
 drv_set_key+0x78/0x170
 ieee80211_key_replace+0x564/0x6cc
 ieee80211_key_link+0x174/0x220
 ieee80211_add_key+0x11c/0x300
 nl80211_new_key+0x12c/0x330
 genl_family_rcv_msg_doit+0xbc/0x11c
 genl_rcv_msg+0xd8/0x1c4
 netlink_rcv_skb+0x40/0x100
 genl_rcv+0x3c/0x50
 netlink_unicast+0x1ec/0x2c0
 netlink_sendmsg+0x198/0x3c0
 ____sys_sendmsg+0x210/0x250
 ___sys_sendmsg+0x78/0xc4
 __sys_sendmsg+0x4c/0x90
 __arm64_sys_sendmsg+0x28/0x30
 invoke_syscall.constprop.0+0x60/0x100
 do_el0_svc+0x48/0xd0
 el0_svc+0x14/0x50
 el0t_64_sync_handler+0xa8/0xb0
 el0t_64_sync+0x158/0x15c

This rcu stall is hard to reproduce as is, but changing ATH_TXFIFO_DEPTH
from 8 to 2 makes it reasonably easy to reproduce.

Fixes: ca2848022c ("ath9k: Postpone key cache entry deletion for TXQ frames reference it")
Signed-off-by: Remi Pommarel <repk@triplefau.lt>
Tested-by: Nicolas Escande <nico.escande@gmail.com>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230609093744.1985-1-repk@triplefau.lt
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:29 +02:00
Karol Kolacinski
4ecf9c1472 ice: handle extts in the miscellaneous interrupt thread
[ Upstream commit 6e8b2c88fc ]

The ice_ptp_extts_work() and ice_ptp_periodic_work() functions are both
scheduled on the same kthread worker, pf.ptp.kworker. The
ice_ptp_periodic_work() function sends to the firmware to interact with the
PHY, and must block to wait for responses.

This can cause delay in responding to the PFINT_OICR_TSYN_EVNT interrupt
cause, ultimately resulting in disruption to processing an input signal of
the frequency is high enough. In our testing, even 100 Hz signals get
disrupted.

Fix this by instead processing the signal inside the miscellaneous
interrupt thread prior to handling Tx timestamps.

Use atomic bits in a new pf->misc_thread bitmap in order to safely
communicate which tasks require processing within the
ice_misc_intr_thread_fn(). This ensures the communication of desired tasks
from the ice_misc_intr() are correctly processed without racing even in the
event that the interrupt triggers again before the thread function exits.

Fixes: 172db5f91d ("ice: add support for auxiliary input/output pins")
Signed-off-by: Karol Kolacinski <karol.kolacinski@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Arpana Arland <arpanax.arland@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:27 +02:00
Marek Vasut
bf732fbbde wifi: rsi: Do not set MMC_PM_KEEP_POWER in shutdown
[ Upstream commit e74f562328 ]

It makes no sense to set MMC_PM_KEEP_POWER in shutdown. The flag
indicates to the MMC subsystem to keep the slot powered on during
suspend, but in shutdown the slot should actually be powered off.
Drop this call.

Fixes: 063848c3e1 ("rsi: sdio: Add WOWLAN support for S5 shutdown state")
Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230527222859.273768-1-marex@denx.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:27 +02:00
Marek Vasut
b601468539 wifi: rsi: Do not configure WoWlan in shutdown hook if not enabled
[ Upstream commit b241e26082 ]

In case WoWlan was never configured during the operation of the system,
the hw->wiphy->wowlan_config will be NULL. rsi_config_wowlan() checks
whether wowlan_config is non-NULL and if it is not, then WARNs about it.
The warning is valid, as during normal operation the rsi_config_wowlan()
should only ever be called with non-NULL wowlan_config. In shutdown this
rsi_config_wowlan() should only ever be called if WoWlan was configured
before by the user.

Add checks for non-NULL wowlan_config into the shutdown hook. While at it,
check whether the wiphy is also non-NULL before accessing wowlan_config .
Drop the single-use wowlan_config variable, just inline it into function
call.

Fixes: 16bbc3eb83 ("rsi: fix null pointer dereference during rsi_shutdown()")
Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230527222833.273741-1-marex@denx.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:27 +02:00