We should not be checking the return values from debugfs creation at all: the
debugfs functions are designed to handle errors of previously called functions
and just transparently abort the creation of debugfs entries when debugfs is
disabled. If we check the return value and abort driver initialisation, we break
the driver if debugfs is disabled (such as when booting with debugfs=off).
Earlier versions of ath9k accidentally did the right thing by checking the
return value, but only for NULL, not for IS_ERR(). This was "fixed" by the two
commits referenced below, breaking ath9k with debugfs=off starting from the 6.6
kernel (as reported in the Bugzilla linked below).
Restore functionality by just getting rid of the return value check entirely.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=219122
Fixes: 1e4134610d ("wifi: ath9k: use IS_ERR() with debugfs_create_dir()")
Fixes: 6edb4ba6fb ("wifi: ath9k: fix parameter check in ath9k_init_debug()")
Reported-by: Daniel Tobias <dan.g.tob@gmail.com>
Tested-by: Daniel Tobias <dan.g.tob@gmail.com>
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20240805110225.19690-1-toke@toke.dk
Using devm_gpio_request_one() is simpler as then we don't need to call
gpio_free().
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20240731210312.7622-1-rosenp@gmail.com
In 'ath9k_get_et_stats()', promote TX stats counters to 'u64'
to avoid possible integer overflow. Compile tested only.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Signed-off-by: Dmitry Kandybka <d.kandybka@gmail.com>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20240725111743.14422-1-d.kandybka@gmail.com
Use the swap() macro to simplify the ath9k_hw_get_nf_hist_mid() function
and improve its readability.
Fixes the following Coccinelle/coccicheck warning reported by
swap.cocci:
WARNING opportunity for swap()
Compile-tested only.
Signed-off-by: Thorsten Blum <thorsten.blum@toblux.com>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20240710185743.709742-2-thorsten.blum@toblux.com
Only managed PCI resource in the driver is the iomapped bar. However the bar
is unmapped in the same function. Therefore using the device-managed
versions just causes overhead, w/o any benefit. Once this is switched to the
non-managed versions, there's nothing left to be managed for
pcim_enable_device(). Therefore we can reduce overhead here too and switch to
the non-managed version as well. This includes removing the no longer needed
call to pcim_pin_device().
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/3b46f6c7-4372-4cc9-9a7c-2c1c06d29324@gmail.com
Currently, the ath11k_soc_dp_stats::hal_reo_error array is defined with a
maximum size of DP_REO_DST_RING_MAX. However, the ath11k_dp_process_rx()
function access ath11k_soc_dp_stats::hal_reo_error using the REO
destination SRNG ring ID, which is incorrect. SRNG ring ID differ from
normal ring ID, and this usage leads to out-of-bounds array access. To fix
this issue, modify ath11k_dp_process_rx() to use the normal ring ID
directly instead of the SRNG ring ID to avoid out-of-bounds array access.
Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1
Signed-off-by: Karthikeyan Periyasamy <quic_periyasa@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20240704070811.4186543-3-quic_periyasa@quicinc.com
Currently, the ath12k_soc_dp_stats::hal_reo_error array is defined with a
maximum size of DP_REO_DST_RING_MAX. However, the ath12k_dp_rx_process()
function access ath12k_soc_dp_stats::hal_reo_error using the REO
destination SRNG ring ID, which is incorrect. SRNG ring ID differ from
normal ring ID, and this usage leads to out-of-bounds array access. To
fix this issue, modify ath12k_dp_rx_process() to use the normal ring ID
directly instead of the SRNG ring ID to avoid out-of-bounds array access.
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Signed-off-by: Karthikeyan Periyasamy <quic_periyasa@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20240704070811.4186543-2-quic_periyasa@quicinc.com
Commit 3a415daa3e ("wifi: ath11k: add P2P IE in beacon template")
from Feb 28, 2024 (linux-next), leads to the following Smatch static
checker warning:
drivers/net/wireless/ath/ath11k/wmi.c:1742 ath11k_wmi_p2p_go_bcn_ie()
warn: sleeping in atomic context
The reason is that ath11k_bcn_tx_status_event() will directly call might
sleep function ath11k_wmi_cmd_send() during RCU read-side critical
sections. The call trace is like:
ath11k_bcn_tx_status_event()
-> rcu_read_lock()
-> ath11k_mac_bcn_tx_event()
-> ath11k_mac_setup_bcn_tmpl()
……
-> ath11k_wmi_bcn_tmpl()
-> ath11k_wmi_cmd_send()
-> rcu_read_unlock()
Commit 886433a984 ("ath11k: add support for BSS color change") added the
ath11k_mac_bcn_tx_event(), commit 01e782c891 ("ath11k: fix warning
of RCU usage for ath11k_mac_get_arvif_by_vdev_id()") added the RCU lock
to avoid warning but also introduced this BUG.
Use work queue to avoid directly calling ath11k_mac_bcn_tx_event()
during RCU critical sections. No need to worry about the deletion of vif
because cancel_work_sync() will drop the work if it doesn't start or
block vif deletion until the running work is done.
Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.30
Fixes: 3a415daa3e ("wifi: ath11k: add P2P IE in beacon template")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/all/2d277abd-5e7b-4da0-80e0-52bd96337f6e@moroto.mountain/
Signed-off-by: Kang Yang <quic_kangyang@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20240626053543.1946-1-quic_kangyang@quicinc.com
We have moved to a new group-managed repo, and this is the first pull
request from that repo, and from me. Fingers crossed...
We have some new features in ath12k along with some cleanups in ath11k
and ath12k. Also notable are some device-tree changes to allow certain
ath11k and ath12k devices to work with a new power sequencing
subsystem.
Major changes:
ath12k
* DebugFS support for datapath statistics
* WCN7850: support for WoW (Wake on WLAN)
* WCN7850: device-tree bindings
ath11k
* QCA6390: device-tree bindings
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Merge tag 'ath-next-20240702' of git://git.kernel.org/pub/scm/linux/kernel/git/ath/ath
ath.git patches for v6.11
We have moved to a new group-managed repo, and this is the first pull
request from that repo, and from me. Fingers crossed...
We have some new features in ath12k along with some cleanups in ath11k
and ath12k. Also notable are some device-tree changes to allow certain
ath11k and ath12k devices to work with a new power sequencing
subsystem.
Major changes:
ath12k
* DebugFS support for datapath statistics
* WCN7850: support for WoW (Wake on WLAN)
* WCN7850: device-tree bindings
ath11k
* QCA6390: device-tree bindings
Add dump_htt_stats file operation to dump the stats value requested
for the requested stats_type.
Stats sent from firmware will be cumulative. Hence add debugfs to reset
the requested stats type.
Example with one ath12k device:
ath12k
`-- pci-0000:06:00.0
|-- mac0
`-- htt_stats
|-- htt_stats_type
|-- htt_stats_reset
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
Signed-off-by: Dinesh Karthikeyan <quic_dinek@quicinc.com>
Co-developed-by: Ramya Gnanasekar <quic_rgnanase@quicinc.com>
Signed-off-by: Ramya Gnanasekar <quic_rgnanase@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20240626085854.2500681-3-quic_rgnanase@quicinc.com
This flag is annoying because it puts a lot of logic into mac80211
that could just as well be in the driver (only iwlmvm uses it) and
the implementation is also broken for MLO.
Remove the flag in favour of calling drv_mgd_prepare_tx() without
any conditions even for the deauth-while-assoc case. The drivers
that implement it can take the appropriate actions, which for the
only user of DEAUTH_NEED_MGD_TX_PREP (iwlmvm) is a bit more tricky
than the implementation in mac80211 is anyway, and all others have
no need and can just exit if info->was_assoc is set.
Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20240627132527.94924bcc9c9e.I328a219e45f2e2724cd52e75bb9feee3bf21a463@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Embedding net_device into structures prohibits the usage of flexible
arrays in the net_device structure. For more details, see the discussion
at [1].
Un-embed the net_devices from struct lmac by converting them
into pointers, and allocating them dynamically. Use the leverage
alloc_netdev() to allocate the net_device object at
bgx_lmac_enable().
The free of the device occurs at bgx_lmac_disable().
Do not free_netdevice() if bgx_lmac_enable() fails after lmac->netdev
is allocated, since bgx_lmac_disable() is called if bgx_lmac_enable()
fails, and lmac->netdev will be freed there (similarly to lmac->dmacs).
Link: https://lore.kernel.org/all/20240229225910.79e224cf@kernel.org/ [1]
Signed-off-by: Breno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/20240626173503.87636-1-leitao@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Cross-merge networking fixes after downstream PR.
No conflicts.
Adjacent changes:
e3f02f32a0 ("ionic: fix kernel panic due to multi-buffer handling")
d9c0420999 ("ionic: Mark error paths in the data path as unlikely")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
- maintainers: Larry Finger sadly passed away
- maintainers: ath trees are in their group now
- TXQ FQ quantum configuration fix
- TI wl driver: work around stuck FW in AP mode
- mac80211: disable softirqs in some new code
needing that
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Merge tag 'wireless-2024-06-27' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless
Johannes Berg says:
====================
Just a few changes:
- maintainers: Larry Finger sadly passed away
- maintainers: ath trees are in their group now
- TXQ FQ quantum configuration fix
- TI wl driver: work around stuck FW in AP mode
- mac80211: disable softirqs in some new code
needing that
* tag 'wireless-2024-06-27' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
MAINTAINERS: wifi: update ath.git location
MAINTAINERS: Remembering Larry Finger
wifi: mac80211: disable softirqs for queued frame handling
wifi: cfg80211: restrict NL80211_ATTR_TXQ_QUANTUM values
wifi: wlcore: fix wlcore AP mode
====================
Link: https://patch.msgid.link/20240627083627.15312-3-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Commit 4a3c212eee ("wifi: ath12k: add basic WoW functionalities") broke
driver initialization, now mac registration is allowed only for devices that
advertise WMI_TLV_SERVICE_WOW, but QCN9274 doesn't support WoW and hence mac
registration is aborted and driver is de-initialized.
Allow mac registration to proceed without WoW Support for devices
that don't advertise WMI_TLV_SERVICE_WOW.
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Fixes: 4a3c212eee ("wifi: ath12k: add basic WoW functionalities")
Signed-off-by: Rameshkumar Sundaram <quic_ramess@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20240626024257.709460-1-quic_ramess@quicinc.com
When auxiliary_device_add() returns error and then calls
auxiliary_device_uninit(), callback function adev_release
calls kfree(madev). We shouldn't call kfree(madev) again
in the error handling path. Set 'madev' to NULL.
Fixes: a69839d432 ("net: mana: Add support for auxiliary device")
Signed-off-by: Ma Ke <make24@iscas.ac.cn>
Link: https://patch.msgid.link/20240625130314.2661257-1-make24@iscas.ac.cn
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Add Ethernet support for STM32MP25.
STM32MP25 is STM32 SOC with 2 GMACs instances.
GMAC IP version is SNPS 5.3x.
GMAC IP configure with 2 RX and 4 TX queue.
DMA HW capability register supported
RX Checksum Offload Engine supported
TX Checksum insertion supported
Wake-Up On Lan supported
TSO supported
Signed-off-by: Christophe Roullier <christophe.roullier@foss.st.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
The currently existing of_property_present check for interrupts does not
cover all ways interrupts can be defined in a device tree, e.g.
"interrupts-extended".
In order to support all current and future ways that can be done, drop that
check and call of_irq_parse_one to figure out if an interrupt is defined
and irq_create_of_mapping for the actual mapping and let it be handled by
the interrupt subsystem.
Signed-off-by: Alex Bee <knaerzche@gmail.com>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://patch.msgid.link/20240622215416.659208-1-knaerzche@gmail.com
Currently, the Rx data path only supports parsing peer metadata of version
zero. However, the QCN9274 platform configures the peer metadata version
as V1B. When V1B peer metadata is parsed using the version zero logic,
invalid data is populated, causing valid packets to be dropped. To address
this issue, refactor the peer metadata version and add the version based
parsing to populate the data from peer metadata correctly.
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Fixes: 2870338109 ("wifi: ath12k: add support for peer meta data version")
Signed-off-by: Karthikeyan Periyasamy <quic_periyasa@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20240624145418.2043461-1-quic_periyasa@quicinc.com
Pdev id from mac phy capabilities will be sent as a part of
HTT/WMI command to firmware. This causes issue with single pdev
devices where firmware does not respond to the WMI/HTT request
sent from host.
For single pdev devices firmware expects pdev id as 1 for 5 GHz/6 GHz
phy and 2 for 2 GHz band. Add wrapper ath12k_mac_get_target_pdev_id()
to help fetch right pdev for single pdev devices.
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
Signed-off-by: Lingbo Kong <quic_lingbok@quicinc.com>
Signed-off-by: Ramya Gnanasekar <quic_rgnanase@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20240621102809.3984004-1-quic_rgnanase@quicinc.com
WQE (Work Queue Element) includes 3 scatter/gather entries for buffers.
The buffer can be split into 3 parts, software should set address and byte
count of each part.
A previous patch-set used page pool to allocate buffers, to simplify the
change, we first used one continuous buffer, which was allocated with
order > 0. This patch improves page pool usage to allocate the exact
number of pages which are required for packet.
As part of init, fill WQE.address[x] and WQE.byte_count* with pages which
are allocated from the pool. Fill x entries according to number of
scatter/gather entries which are required for maximum packet size. When a
packet is received, check the actual size and replace only the used pages.
Save bytes for software overhead only as part of the first entry.
This change also requires using fragmented SKB, till now all the buffer
was in the linear part. Note that 'skb->truesize' is decreased for small
packets.
For now the maximum buffer size is 3 * PAGE_SIZE which is enough, in
case that the driver will support larger MTU, we can use 'order' to
allocate more than one page per scatter/gather entry.
This change significantly reduces memory consumption of mlxsw driver. The
footprint is reduced by 26%.
Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Link: https://patch.msgid.link/ee38898c692e7f644a7f3ea4d33aeddb4dd917d2.1719321422.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
A previous patch-set used page pool for Rx buffers allocations. To
simplify the change, we first used page pool for one allocation per
packet - one continuous buffer is allocated for each packet. This can be
improved by using fragmented buffers, then memory consumption will be
significantly reduced.
WQE (Work Queue Element) includes up to 3 scatter/gather entries for
data. As preparation for fragmented buffer usage, calculate number of
scatter/gather entries which are required for packet according to
maximum MTU and store it for future use. For now use PAGE_SIZE for each
entry, which means that maximum buffer size is 3 * PAGE_SIZE. This is
enough for the maximum MTU which is supported in the driver now (10K).
Warn in an unlikely case of maximum MTU which requires more than 3 pages,
for now this warn should not happen with standard page size (>=4K) and
maximum MTU (10K).
Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Link: https://patch.msgid.link/98c3e3adb7e727e571ac538faf67cef262cec4fc.1719321422.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
These drivers don't use the driver_data member of struct i2c_device_id,
so don't explicitly initialize this member.
This prepares putting driver_data in an anonymous union which requires
either no initialization or named designators. But it's also a nice
cleanup on its own.
While add it, also remove commas after the sentinel entries.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Reviewed-by: Petr Machata <petrm@nvidia.com> # For mlxsw
Reviewed-by: Kory Maincent <Kory.maincent@bootlin.com>
Reviewed-by: Jeremy Kerr <jk@codeconstruct.com.au> # for mctp-i2c
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://patch.msgid.link/20240625083853.2205977-2-u.kleine-koenig@baylibre.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Fix all the prototype mismatch and "wrong kernel-doc identifier"
warnings, due to typos in or misformatting of the kernel-doc.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20240625194805.6ec65cf9b88c.I7804114d7369f352e80a0e8430f7119af8e210de@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This causes unnecessary error level kernel messages if the platform
does not have any UATS table.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Reviewed-by: Mukesh Sisodiya <mukesh.sisodiya@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20240625194805.306b7eed8671.I6e9294335378dab38ef957866a0d39ec1a2df7f8@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Kalle reported that this triggers very occasionally, but
we don't even know which place, except that it wasn't one
with a warning. Make all of them warnings since this is
really not meant to happen and indicates driver bugs.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20240625194805.be7a3a95afae.Ie8606d36783818c043c971bf0bc6f4df6a6e8f5b@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Since we always block EMLSR for ROC, we also need to always
unblock it, even if we don't have a P2P device interface.
Fix this.
Fixes: a1efeb8230 ("wifi: iwlwifi: mvm: Block EMLSR when a p2p/softAP vif is active")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20240625194805.96bbf98b716d.Id5a36954f8ebaa95142fd3d3a7a52bab5363b0bd@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The lookup function iwl_mvm_rcu_fw_link_id_to_link_conf() is
normally called with input from the firmware, so it should use
IWL_FW_CHECK() instead of WARN_ON().
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20240625194805.4ea8fb7c47d4.I1c22af213f97f69bfc14674502511c1bc504adfb@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
