platform/kernel/linux-rpi.git
16 months agowifi: ath10k: improve structure padding
Arnd Bergmann [Fri, 16 Jun 2023 09:04:21 +0000 (11:04 +0200)]
wifi: ath10k: improve structure padding

Including an aligned structure inside of a packed one is ambiguous
and can lead to misaligned data, as pointed out by this clang warning:

drivers/net/wireless/ath/ath10k/htt.h:715:34: error: field prefix within 'struct htt_rx_indication' is less aligned than 'struct htt_rx_indication_prefix' and is usually due to 'struct htt_rx_indication' being packed, which can lead to unaligned accesses [-Werror,-Wunaligned-access]
        struct htt_rx_indication_prefix prefix;
                                        ^
drivers/net/wireless/ath/ath10k/htt.h:736:34: error: field prefix within 'struct htt_rx_indication_hl' is less aligned than 'struct htt_rx_indication_prefix' and is usually due to 'struct htt_rx_indication_hl' being packed, which can lead to unaligned accesses [-Werror,-Wunaligned-access]
        struct htt_rx_indication_prefix prefix;
                                        ^
drivers/net/wireless/ath/ath10k/htt.h:1564:2: error: field  within 'struct htt_tx_fetch_ind' is less aligned than 'union htt_tx_fetch_ind::(anonymous at drivers/net/wireless/ath/ath10k/htt.h:1564:2)' and is usually due to 'struct htt_tx_fetch_ind' being packed, which can lead to unaligned accesses [-Werror,-Wunaligned-access]
        union {
        ^
drivers/net/wireless/ath/ath10k/htt.h:1702:2: error: field  within 'struct htt_resp' is less aligned than 'union htt_resp::(anonymous at drivers/net/wireless/ath/ath10k/htt.h:1702:2)' and is usually due to 'struct htt_resp' being packed, which can lead to unaligned accesses [-Werror,-Wunaligned-access]

These structures appear to actually need the packing since they
are embedded at misaligned offsets. Add even more such annotations
here to enforce bytewise access throughout the driver.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230616090439.2484857-1-arnd@kernel.org
16 months agowifi: ath9k: convert msecs to jiffies where needed
Dmitry Antipov [Tue, 13 Jun 2023 13:46:55 +0000 (16:46 +0300)]
wifi: ath9k: convert msecs to jiffies where needed

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: d63ffc45c5d3 ("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
17 months agodt-bindings: net: wireless: ath10k: add ieee80211-freq-limit property
Christian Lamparter [Thu, 15 Jun 2023 11:41:53 +0000 (14:41 +0300)]
dt-bindings: net: wireless: ath10k: add ieee80211-freq-limit property

This is an existing optional property that ieee80211.yaml/cfg80211
provides. It's useful to further restrict supported frequencies
for a specified device through device-tree.

For testing the addition, I added the ieee80211-freq-limit
property with values from an OpenMesh A62 device. This is
because the OpenMesh A62 has "special filters in front of
the RX+TX paths to the 5GHz PHYs. These filtered channel
can in theory still be used by the hardware but the signal
strength is reduced so much that it makes no sense."

The driver supported this since ~2018 by
commit 34d5629d2ca8 ("ath10k: limit available channels via DT ieee80211-freq-limit")

Link: https://git.openwrt.org/?p=openwrt/openwrt.git;a=commit;h=e3b8ae2b09e137ce2eae33551923daf302293a0c
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/c33c928b7c6c9bb4e7abe84eb8df9f440add275b.1686486464.git.chunkeey@gmail.com
17 months agowifi: ath11k: Add missing hw_ops->get_ring_selector() for IPQ5018
Ziyang Huang [Thu, 15 Jun 2023 11:41:48 +0000 (14:41 +0300)]
wifi: ath11k: Add missing hw_ops->get_ring_selector() for IPQ5018

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: ba60f2793d3a ("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
17 months agowifi: ath11k: Restart firmware after cold boot calibration for IPQ5018
Ziyang Huang [Thu, 15 Jun 2023 11:41:48 +0000 (14:41 +0300)]
wifi: ath11k: Restart firmware after cold boot calibration for IPQ5018

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: 8dfe875aa24a ("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
17 months agowifi: ath11k: Add missing ops config for IPQ5018 in ath11k_ahb_probe()
Ziyang Huang [Thu, 15 Jun 2023 11:41:47 +0000 (14:41 +0300)]
wifi: ath11k: Add missing ops config for IPQ5018 in ath11k_ahb_probe()

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: 25edca7bb18a ("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
17 months agowifi: ath11k: Add missing check for ioremap
Jiasheng Jiang [Tue, 13 Jun 2023 09:19:40 +0000 (12:19 +0300)]
wifi: ath11k: Add missing check for ioremap

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: 6ac04bdc5edb ("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
17 months agowifi: ath12k: fix conf_mutex in ath12k_mac_op_unassign_vif_chanctx()
Wen Gong [Tue, 13 Jun 2023 09:19:45 +0000 (12:19 +0300)]
wifi: ath12k: fix conf_mutex in ath12k_mac_op_unassign_vif_chanctx()

"mutex_unlock(&ar->conf_mutex);" is always called at end of function
ath12k_mac_op_unassign_vif_chanctx(), so delete this unlock to make
sure lock/unlock is paired.

Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4

Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230608104444.3134-1-quic_wgong@quicinc.com
17 months agowifi: ath11k: fix memory leak in WMI firmware stats
P Praneesh [Tue, 6 Jun 2023 09:11:28 +0000 (14:41 +0530)]
wifi: ath11k: fix memory leak in WMI firmware stats

Memory allocated for firmware pdev, vdev and beacon statistics
are not released during rmmod.

Fix it by calling ath11k_fw_stats_free() function before hardware
unregister.

While at it, avoid calling ath11k_fw_stats_free() while processing
the firmware stats received in the WMI event because the local list
is getting spliced and reinitialised and hence there are no elements
in the list after splicing.

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1

Signed-off-by: P Praneesh <quic_ppranees@quicinc.com>
Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230606091128.14202-1-quic_adisi@quicinc.com
17 months agowifi: ath11k: debug: add ATH11K_DBG_CE
Kalle Valo [Fri, 9 Jun 2023 14:24:40 +0000 (17:24 +0300)]
wifi: ath11k: debug: add ATH11K_DBG_CE

Add a new debug level for CE so that we don't need to use AHB level in ce.c.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.23

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230609142440.24643-16-kvalo@kernel.org
17 months agowifi: ath11k: htc: cleanup debug messages
Kalle Valo [Fri, 9 Jun 2023 14:24:39 +0000 (17:24 +0300)]
wifi: ath11k: htc: cleanup debug messages

Cleanup HTC debug messages to follow the preferred style and try to make them
more readable. Also add a few more and remove unnecessary.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.23

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230609142440.24643-15-kvalo@kernel.org
17 months agowifi: ath11k: don't use %pK
Kalle Valo [Fri, 9 Jun 2023 14:24:38 +0000 (17:24 +0300)]
wifi: ath11k: don't use %pK

According to Documentation/core-api/printk-formats.rst %pK should not be used
with printk(), so switch back to using just %p. printk() will hash the address
so addresses are not leaked to user space.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.23

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230609142440.24643-14-kvalo@kernel.org
17 months agowifi: ath11k: hal: cleanup debug message
Kalle Valo [Fri, 9 Jun 2023 14:24:37 +0000 (17:24 +0300)]
wifi: ath11k: hal: cleanup debug message

Fix the debug message to follow the preferred style.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.23

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230609142440.24643-13-kvalo@kernel.org
17 months agowifi: ath11k: debug: use all upper case in ATH11k_DBG_HAL
Kalle Valo [Fri, 9 Jun 2023 14:24:36 +0000 (17:24 +0300)]
wifi: ath11k: debug: use all upper case in ATH11k_DBG_HAL

Somehow the character 'k' in ATH11k_DBG_HAL was in lower case. Change it to
upper case.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.23

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230609142440.24643-12-kvalo@kernel.org
17 months agowifi: ath11k: dp: cleanup debug message
Kalle Valo [Fri, 9 Jun 2023 14:24:35 +0000 (17:24 +0300)]
wifi: ath11k: dp: cleanup debug message

Merge the two debug messages into and fix them to follow the preferred style.

Also change the log level to ATH11K_DBG_DP_TX to match the filename.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.23

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230609142440.24643-11-kvalo@kernel.org
17 months agowifi: ath11k: pci: cleanup debug logging
Kalle Valo [Fri, 9 Jun 2023 14:24:34 +0000 (17:24 +0300)]
wifi: ath11k: pci: cleanup debug logging

For better readability fix PCI debug messages to follow the preferred style.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.23

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230609142440.24643-10-kvalo@kernel.org
17 months agowifi: ath11k: wmi: add unified command debug messages
Kalle Valo [Fri, 9 Jun 2023 14:24:33 +0000 (17:24 +0300)]
wifi: ath11k: wmi: add unified command debug messages

Add debug messages for every command and cleanup the existing ones to make them
all follow the same style. For better readability start every message with
"cmd". Print the debug message after a successful ath11k_wmi_cmd_send() call.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.23

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230609142440.24643-9-kvalo@kernel.org
17 months agowifi: ath11k: wmi: use common error handling style
Kalle Valo [Fri, 9 Jun 2023 14:24:32 +0000 (17:24 +0300)]
wifi: ath11k: wmi: use common error handling style

Also these functions don't follow the preferred style so fix those.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.23

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230609142440.24643-8-kvalo@kernel.org
17 months agowifi: ath11k: wmi: cleanup error handling in ath11k_wmi_send_init_country_cmd()
Kalle Valo [Fri, 9 Jun 2023 14:24:31 +0000 (17:24 +0300)]
wifi: ath11k: wmi: cleanup error handling in ath11k_wmi_send_init_country_cmd()

The error handling doesn't follow the preferred style so fix that.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.23

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230609142440.24643-7-kvalo@kernel.org
17 months agowifi: ath11k: remove unsupported event handlers
Kalle Valo [Fri, 9 Jun 2023 14:24:30 +0000 (17:24 +0300)]
wifi: ath11k: remove unsupported event handlers

Now that we have a default handler there's no need anymore to list every
unsupported event id anymore, so remove that to clean this up.

While at it remove the pointless todo comment and change the debug message to
follow the preferred style.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.23

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230609142440.24643-6-kvalo@kernel.org
17 months agowifi: ath11k: add WMI event debug messages
Kalle Valo [Fri, 9 Jun 2023 14:24:29 +0000 (17:24 +0300)]
wifi: ath11k: add WMI event debug messages

Add a debug message for every WMI event to make it easier track what's
happening in WMI. For better readability start every debug message with
"event".

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.23

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230609142440.24643-5-kvalo@kernel.org
17 months agowifi: ath11k: remove manual mask names from debug messages
Kalle Valo [Fri, 9 Jun 2023 14:24:28 +0000 (17:24 +0300)]
wifi: ath11k: remove manual mask names from debug messages

Now that the previous patch changed ath11k_dbg() to print the debug level
there's no need to have the level in the actual message anymore. So remove those.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.23

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230609142440.24643-4-kvalo@kernel.org
17 months agowifi: ath11k: print debug level in debug messages
Kalle Valo [Fri, 9 Jun 2023 14:24:27 +0000 (17:24 +0300)]
wifi: ath11k: print debug level in debug messages

To make it easier understand the context of a debug message print the debug
level before the actual message. An example:

[21867.231900] ath11k_pci 0000:06:00.0: wmi processed regulatory ext channel list

The tracepoint call is not modified, it's better to userspace print the debug
level if needed.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.23

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230609142440.24643-3-kvalo@kernel.org
17 months agowifi: ath11k: debug: remove unused ATH11K_DBG_ANY
Kalle Valo [Fri, 9 Jun 2023 14:24:26 +0000 (17:24 +0300)]
wifi: ath11k: debug: remove unused ATH11K_DBG_ANY

It's not used anywhere so can be easily removed.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.23

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230609142440.24643-2-kvalo@kernel.org
17 months agowifi: ath9k: Fix possible stall on ath9k_txq_list_has_key()
Remi Pommarel [Fri, 9 Jun 2023 09:37:44 +0000 (11:37 +0200)]
wifi: ath9k: Fix possible stall on ath9k_txq_list_has_key()

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: ca2848022c12 ("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
17 months agowifi: ath12k: delete the timer rx_replenish_retry during rmmod
Hari Chandrakanthan [Mon, 29 May 2023 10:13:58 +0000 (15:43 +0530)]
wifi: ath12k: delete the timer rx_replenish_retry during rmmod

The rx_replenish_retry timer is initialized in ath12k_core_alloc() when ath12k
module is loaded.  But rx_replenish_retry timer is not deleted anywhere in the
code.  It is supposed to be deleted when ath12k module is removed/unloaded.

Delete the timer rx_replenish_retry in ath12k_core_free().

Found during code review.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0-02903-QCAHKSWPL_SILICONZ-1

Signed-off-by: Hari Chandrakanthan <quic_haric@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/1685355238-3282-1-git-send-email-quic_haric@quicinc.com
17 months agowifi: ath12k: Use msdu_end to check MCBC
Baochen Qiang [Mon, 29 May 2023 08:16:09 +0000 (16:16 +0800)]
wifi: ath12k: Use msdu_end to check MCBC

We are seeing a very low TCP throughput testing with some specific
tools. This is because for sub-frames of an AMSDU, MCBC flag in
mpdu_start may be not valid, and as a result those frames would be
dropped by kernel.

Add a new helper to get it from msdu_end. Also clean up original
helper since it is not needed any more.

Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4

Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230529081609.34567-1-quic_bqiang@quicinc.com
17 months agowifi: ath12k: check hardware major version for WCN7850
Carl Huang [Thu, 1 Jun 2023 10:35:15 +0000 (13:35 +0300)]
wifi: ath12k: check hardware major version for WCN7850

This is to check the hardware major version for WCN7850 so only
supported hardware is initialized. Now only WCN7850 with major
version 2 is supported.

Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4

Signed-off-by: Carl Huang <quic_cjhuang@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230518105741.1281424-1-quic_cjhuang@quicinc.com
17 months agowifi: ath12k: Avoid NULL pointer access during management transmit cleanup
Balamurugan S [Thu, 1 Jun 2023 10:35:15 +0000 (13:35 +0300)]
wifi: ath12k: Avoid NULL pointer access during management transmit cleanup

Currently 'ar' reference is not added in skb_cb.
Though this is generally not used during transmit completion
callbacks, on interface removal the remaining idr cleanup callback
uses the ar pointer from skb_cb from management txmgmt_idr. Hence fill them
during transmit call for proper usage to avoid NULL pointer dereference.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1

Signed-off-by: Balamurugan S <quic_bselvara@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230518071046.14337-1-quic_bselvara@quicinc.com
17 months agowifi: ath11k: update proper pdev/vdev id for testmode command
Venkateswara Naralasetty [Thu, 1 Jun 2023 14:32:14 +0000 (20:02 +0530)]
wifi: ath11k: update proper pdev/vdev id for testmode command

User can extend test mode command support to set vdev and pdev params
for debug purpose at run time by sending vdev/pdev param set command
through the testmode command interface.

Fill the proper pdev/vdev id in driver since, pdev/vdev id details may
not be available at user space. It will make sure that the proper
vdev/pdev ids are sent to firmware.

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1

Signed-off-by: Venkateswara Naralasetty <quic_vnaralas@quicinc.com>
Signed-off-by: Raj Kumar Bhagat <quic_rajkbhag@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230601143214.13006-1-quic_rajkbhag@quicinc.com
17 months agowifi: atk10k: Don't opencode ath10k_pci_priv() in ath10k_ahb_priv()
Uwe Kleine-König [Thu, 1 Jun 2023 08:25:56 +0000 (10:25 +0200)]
wifi: atk10k: Don't opencode ath10k_pci_priv() in ath10k_ahb_priv()

This introduces no changes in the compiled result (tested for an
ARCH=arm allmodconfig build).

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230601082556.2738446-5-u.kleine-koenig@pengutronix.de
17 months agowifi: ath10k: Convert to platform remove callback returning void
Uwe Kleine-König [Thu, 1 Jun 2023 08:25:55 +0000 (10:25 +0200)]
wifi: ath10k: Convert to platform remove callback returning void

The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Both ath10k platform drivers return zero unconditionally in their remove
callback, so they can be trivially converted to use .remove_new().

Also fix on of the more offending whitespace issues in the definition
of ath10k_snoc_driver.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230601082556.2738446-4-u.kleine-koenig@pengutronix.de
17 months agowifi: ath10k: Drop checks that are always false
Uwe Kleine-König [Thu, 1 Jun 2023 08:25:54 +0000 (10:25 +0200)]
wifi: ath10k: Drop checks that are always false

platform_get_drvdata() cannot return NULL as the probe function calls
platform_set_drvdata() with a non-NULL argument or returns with a failure.
In the first case, platform_get_drvdata() returns this non-NULL value and
in the second the remove callback isn't called at all.

ath10k_ahb_priv() cannot return NULL and ar_ahb is unused after the check
anyhow.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230601082556.2738446-3-u.kleine-koenig@pengutronix.de
17 months agowifi: ath10k: Drop cleaning of driver data from probe error path and remove
Uwe Kleine-König [Thu, 1 Jun 2023 08:25:53 +0000 (10:25 +0200)]
wifi: ath10k: Drop cleaning of driver data from probe error path and remove

The driver core cares for resetting driver data if probe fails and after
remove. So drop the explicit and duplicate cleanup in the driver's
functions.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230601082556.2738446-2-u.kleine-koenig@pengutronix.de
17 months agowifi: ath10k: Trigger STA disconnect after reconfig complete on hardware restart
Youghandhar Chintala [Fri, 26 May 2023 09:41:08 +0000 (12:41 +0300)]
wifi: ath10k: Trigger STA disconnect after reconfig complete on hardware restart

Currently, on WCN3990, the station disconnect after hardware recovery is
not working as expected. This is because of setting the
IEEE80211_SDATA_DISCONNECT_HW_RESTART flag very early in the hardware
recovery process even before the driver invokes ieee80211_hw_restart().
On the contrary, mac80211 expects this flag to be set after
ieee80211_hw_restart() is invoked for it to trigger station disconnect.

Set the IEEE80211_SDATA_DISCONNECT_HW_RESTART flag in
ath10k_reconfig_complete() instead to fix this.

The other targets are not affected by this change, since the hardware
params flag is not set.

Tested-on: WCN3990 hw1.0 SNOC WLAN.HL.3.2.2.c10-00754-QCAHLSWMTPL-1

Fixes: 2c3fc50591ff ("ath10k: Trigger sta disconnect on hardware restart")
Signed-off-by: Youghandhar Chintala <quic_youghand@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230518101515.3820-1-quic_youghand@quicinc.com
17 months agowifi: ath11k: Add HTT stats for PHY reset case
Nidhi Jain [Fri, 26 May 2023 09:41:07 +0000 (12:41 +0300)]
wifi: ath11k: Add HTT stats for PHY reset case

New HTT stats are added with stats type 37 to
provide PHY reset stats and PHY reset counter stats.

PHY reset stats are used to display the current
PHY-related operation information such as band, CCA
threshold, current operating channel etc.,

PHY reset counter stats are used to display the
PHY reset counter values like calibration counts,
temperature based recalibration counts etc.,

Usage:
echo 37 > /sys/kernel/debug/ieee80211/phyX/ath11k/htt_stats_type
cat /sys/kernel/debug/ieee80211/phyx/ath11k/htt_stats

Output:

HTT_PHY_RESET_STATS_TLV:
pdev_id = 0
chan_mhz = 5180
chan_band_center_freq1 = 5210
chan_band_center_freq2 = 0
chan_phy_mode = 18
chan_flags = 0x8
chan_num = 36
reset_cause = 0x50000
prev_reset_cause = 0x50000
phy_warm_reset_src = 0x0
rx_gain_tbl_mode = 0
xbar_val = 0xfac688
force_calibration = 0
phyrf_mode = 0
phy_homechan = 0
phy_tx_ch_mask = 0x3
phy_rx_ch_mask = 0x3
phybb_ini_mask = 0x5
phyrf_ini_mask = 0x0
phy_dfs_en_mask = 0x0
phy_sscan_en_mask = 0x0
phy_synth_sel_mask = 0x0
phy_adfs_freq = 0
cck_fir_settings = 0x0
phy_dyn_pri_chan = 6
cca_thresh = 0x26232020
dyn_cca_status = 0
rxdesense_thresh_hw = 0xcfe0afe
rxdesense_thresh_sw = 0xcfe0afe

HTT_PHY_RESET_COUNTERS_TLV:
pdev_id = 0
cf_active_low_fail_cnt = 0
cf_active_low_pass_cnt = 0
phy_off_through_vreg_cnt = 0
force_calibration_cnt = 0
rf_mode_switch_phy_off_cnt = 0

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1

Signed-off-by: Nidhi Jain <quic_nidhjain@quicinc.com>
Signed-off-by: Maharaja Kennadyrajan <quic_mkenna@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230517141242.2754293-1-quic_mkenna@quicinc.com
17 months agowifi: ath11k: Allow ath11k to boot without caldata in ftm mode
Sowmiya Sree Elavalagan [Fri, 26 May 2023 09:41:07 +0000 (12:41 +0300)]
wifi: ath11k: Allow ath11k to boot without caldata in ftm mode

Currently, if ath11k is unable to load the calibration data file it will
always exit. However the calibration data may not be present in factory
test mode, so update the logic to allow the driver to execute in FTM mode
even if downloading the calibration data fails.

Tested-on : IPQ8074 hw2.0 AHB WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1

Signed-off-by: Sowmiya Sree Elavalagan <quic_ssreeela@quicinc.com>
Signed-off-by: Raj Kumar Bhagat <quic_rajkbhag@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230517135934.16408-5-quic_rajkbhag@quicinc.com
17 months agowifi: ath11k: factory test mode support
Govindaraj Saminathan [Fri, 26 May 2023 09:41:07 +0000 (12:41 +0300)]
wifi: ath11k: factory test mode support

Add support to process factory test mode commands (FTM) for calibration.
By default firmware start with NORMAL mode and to process the FTM commands
firmware needs to be restarted in FTM mode using module parameter ftm_mode.
The pre-request is all the radios should be down before starting the test.

When start command ATH11K_TM_CMD_TESTMODE_START is received, ar->state
is set to Test Mode. If the FTM command or event length is greater
than 256 bytes, it will be broken down into multiple segments and
encoded with TLV header if it is segmented commands, else it is sent
to firmware as it is.

On receiving UTF event from firmware, if it is segmented event, the driver
will wait until it receives all the segments and notify the complete
data to user application. In case the segmented sequence are missed or
lost from the firmware, driver will skip the already received partial data.

In case of unsegmented UTF event from firmware, driver notifies the
data to the user application as it comes. Applications handles
the data further.

Command to boot in ftm mode:

insmod ath11k ftm_mode=1

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1

Signed-off-by: Govindaraj Saminathan <quic_gsaminat@quicinc.com>
Co-developed-by: Sowmiya Sree Elavalagan <quic_ssreeela@quicinc.com>
Signed-off-by: Sowmiya Sree Elavalagan <quic_ssreeela@quicinc.com>
Signed-off-by: Raj Kumar Bhagat <quic_rajkbhag@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230517135934.16408-4-quic_rajkbhag@quicinc.com
17 months agowifi: ath11k: remove unused function ath11k_tm_event_wmi()
Govindaraj Saminathan [Fri, 26 May 2023 09:41:06 +0000 (12:41 +0300)]
wifi: ath11k: remove unused function ath11k_tm_event_wmi()

The function ath11k_tm_event_wmi() is only defined and it is not used
anywhere. Hence remove the unused.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1

Signed-off-by: Govindaraj Saminathan <quic_gsaminat@quicinc.com>
Signed-off-by: Raj Kumar Bhagat <quic_rajkbhag@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230517135934.16408-2-quic_rajkbhag@quicinc.com
17 months agowifi: ath11k: add support default regdb while searching board-2.bin for WCN6855
Wen Gong [Fri, 26 May 2023 09:41:06 +0000 (12:41 +0300)]
wifi: ath11k: add support default regdb while searching board-2.bin for WCN6855

Sometimes board-2.bin does not have the regdb data which matched the
parameters such as vendor, device, subsystem-vendor, subsystem-device
and etc. Add default regdb data with 'bus=%s' into board-2.bin for
WCN6855, then ath11k use 'bus=pci' to search regdb data in board-2.bin
for WCN6855.

kernel: [  122.515808] ath11k_pci 0000:03:00.0: boot using board name 'bus=pci,vendor=17cb,device=1103,subsystem-vendor=17cb,subsystem-device=3374,qmi-chip-id=2,qmi-board-id=262'
kernel: [  122.517240] ath11k_pci 0000:03:00.0: boot firmware request ath11k/WCN6855/hw2.0/board-2.bin size 6179564
kernel: [  122.517280] ath11k_pci 0000:03:00.0: failed to fetch regdb data for bus=pci,vendor=17cb,device=1103,subsystem-vendor=17cb,subsystem-device=3374,qmi-chip-id=2,qmi-board-id=262 from ath11k/WCN6855/hw2.0/board-2.bin
kernel: [  122.517464] ath11k_pci 0000:03:00.0: boot using board name 'bus=pci'
kernel: [  122.518901] ath11k_pci 0000:03:00.0: boot firmware request ath11k/WCN6855/hw2.0/board-2.bin size 6179564
kernel: [  122.518915] ath11k_pci 0000:03:00.0: board name
kernel: [  122.518917] ath11k_pci 0000:03:00.0: 00000000: 62 75 73 3d 70 63 69                             bus=pci
kernel: [  122.518918] ath11k_pci 0000:03:00.0: boot found match regdb data for name 'bus=pci'
kernel: [  122.518920] ath11k_pci 0000:03:00.0: boot found regdb data for 'bus=pci'
kernel: [  122.518921] ath11k_pci 0000:03:00.0: fetched regdb

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3

Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230517133959.8224-1-quic_wgong@quicinc.com
17 months agowifi: ath12k: Add support to parse new WMI event for 6 GHz regulatory
P Praneesh [Thu, 25 May 2023 17:07:57 +0000 (20:07 +0300)]
wifi: ath12k: Add support to parse new WMI event for 6 GHz regulatory

In order to support different power levels of 6 GHz AP and client, new WMI
event for regulatory (WMI_REG_CHAN_LIST_CC_EXT_EVENTID) has been added in
firmware to provide new parameters required for 6 GHz regulatory rules.

Firmware advertises its capability of handling new event in WMI service ready
event. Based on that, host needs to set host_service_flags in WMI init command
to indicate that host supports processing of this WMI event. Based on
advertised host capability, firmware sends event WMI_REG_CHAN_LIST_CC_EXT_EVENTID.
This new event contains 2G/5G/6G reg rules with additional power value fields
for 6GHz and regd is built accordingly.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0-02903-QCAHKSWPL_SILICONZ-1

Signed-off-by: P Praneesh <quic_ppranees@quicinc.com>
Signed-off-by: Ramya Gnanasekar <quic_rgnanase@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230502142018.20301-1-quic_rgnanase@quicinc.com
17 months agowifi: ath9k: don't allow to overwrite ENDPOINT0 attributes
Fedor Pchelkin [Wed, 17 May 2023 15:03:17 +0000 (18:03 +0300)]
wifi: ath9k: don't allow to overwrite ENDPOINT0 attributes

A bad USB device is able to construct a service connection response
message with target endpoint being ENDPOINT0 which is reserved for
HTC_CTRL_RSVD_SVC and should not be modified to be used for any other
services.

Reject such service connection responses.

Found by Linux Verification Center (linuxtesting.org) with Syzkaller.

Fixes: fb9987d0f748 ("ath9k_htc: Support for AR9271 chipset.")
Reported-by: syzbot+b68fbebe56d8362907e8@syzkaller.appspotmail.com
Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230516150427.79469-1-pchelkin@ispras.ru
17 months agowifi: wil6210: wmi: Replace zero-length array with DECLARE_FLEX_ARRAY() helper
Gustavo A. R. Silva [Wed, 17 May 2023 15:03:17 +0000 (18:03 +0300)]
wifi: wil6210: wmi: Replace zero-length array with DECLARE_FLEX_ARRAY() helper

Zero-length arrays are deprecated, and we are moving towards adopting
C99 flexible-array members, instead. So, replace zero-length arrays
declarations alone in structs with the new DECLARE_FLEX_ARRAY()
helper macro.

This helper allows for flexible-array members alone in structs.

Link: https://github.com/KSPP/linux/issues/193
Link: https://github.com/KSPP/linux/issues/288
Link: https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/ZGKHM+MWFsuqzTjm@work
17 months agowifi: wil6210: fw: Replace zero-length arrays with DECLARE_FLEX_ARRAY() helper
Gustavo A. R. Silva [Wed, 17 May 2023 15:03:16 +0000 (18:03 +0300)]
wifi: wil6210: fw: Replace zero-length arrays with DECLARE_FLEX_ARRAY() helper

Zero-length arrays are deprecated, and we are moving towards adopting
C99 flexible-array members, instead. So, replace zero-length arrays
declarations alone in structs with the new DECLARE_FLEX_ARRAY()
helper macro.

This helper allows for flexible-array members alone in structs.

Link: https://github.com/KSPP/linux/issues/193
Link: https://github.com/KSPP/linux/issues/287
Link: https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/ZGKHByxujJoygK+l@work
18 months agoMerge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
Kalle Valo [Wed, 17 May 2023 14:59:59 +0000 (17:59 +0300)]
Merge ath-next from git://git./linux/kernel/git/kvalo/ath.git

ath.git patches for v6.5. Major changes:

ath11k

* Multiple Basic Service Set Identifier (MBSSID) and Enhanced MBSSID
  Advertisement (EMA) support in AP mode

18 months agowifi: ath11k: Send HT fixed rate in WMI peer fixed param
Maharaja Kennadyrajan [Tue, 9 May 2023 17:07:24 +0000 (20:07 +0300)]
wifi: ath11k: Send HT fixed rate in WMI peer fixed param

Due to the firmware behavior with HT fixed rate setting,
HT fixed rate MCS with NSS > 1 are treated as NSS = 1
HT rates in the firmware and enables the HT fixed rate of
NSS = 1.

This leads to HT fixed rate is always configured for NSS = 1
even though the user sets NSS = 2 or > 1 HT fixed MCS in the
set bitrate command.

Currently HT fixed MCS is sent via WMI peer assoc command.
Fix this issue, by sending the HT fixed rate MCS in WMI peer
fixed param instead of sending in peer assoc command.

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1

Signed-off-by: Maharaja Kennadyrajan <quic_mkenna@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230504092033.3542456-3-quic_mkenna@quicinc.com
18 months agowifi: ath11k: Relocate the func ath11k_mac_bitrate_mask_num_ht_rates() and change...
Maharaja Kennadyrajan [Tue, 9 May 2023 17:07:23 +0000 (20:07 +0300)]
wifi: ath11k: Relocate the func ath11k_mac_bitrate_mask_num_ht_rates() and change hweight16 to hweight8

Relocate the function ath11k_mac_bitrate_mask_num_ht_rates() definition
to call this function from other functions which helps to avoid the
compilation error (function not defined).

ht_mcs[] is 1 byte array and it is enough to use hweight8() instead
of hweight16(). Hence, fixed the same.

Tested on: Compile tested only.

Signed-off-by: Maharaja Kennadyrajan <quic_mkenna@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230504092033.3542456-2-quic_mkenna@quicinc.com
18 months agowifi: ath12k: increase vdev setup timeout
Aishwarya R [Tue, 9 May 2023 17:07:23 +0000 (20:07 +0300)]
wifi: ath12k: increase vdev setup timeout

When vdev start/stop happens, response from firmware is received with delay
and hence there is a timeout before VDEV can be up/down.
Also, with maximum peers connected and when vdev stop occurs, firmware
will take time to clean up all the peers and vap queues.
In such cases as well, vdev start/stop response is sent by firmware with delay.

Increase the vdev setup timeout as recommended by firmware team.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0-02903-QCAHKSWPL_SILICONZ-1

Signed-off-by: Aishwarya R <quic_aisr@quicinc.com>
Signed-off-by: Ramya Gnanasekar <quic_rgnanase@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230428091041.20033-1-quic_rgnanase@quicinc.com
18 months agowifi: rtw89: 8851b: rfk: add TSSI
Ping-Ke Shih [Sat, 13 May 2023 05:44:25 +0000 (13:44 +0800)]
wifi: rtw89: 8851b: rfk: add TSSI

TSSI is transmitter signal strength indication, which is a close-loop
hardware circuit to feedback actual transmitting power as a reference for
next transmission.

When we setup channel to connect an AP, it does full calibration. When
switching bands or channels, it needs to reset hardware status to prevent
use wrong feedback of previous transmission.

To do TX power compensation reflecting current temperature, it loads tables
of compensation values into registers according to channel and band group.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230513054425.9689-4-pkshih@realtek.com
18 months agowifi: rtw89: 8851b: rfk: add DPK
Ping-Ke Shih [Sat, 13 May 2023 05:44:24 +0000 (13:44 +0800)]
wifi: rtw89: 8851b: rfk: add DPK

DPK is short for digital pre-distortion calibration. It can adjusts digital
waveform according to PA linear characteristics dynamically to enhance
TX EVM.

Do this calibration when we are going to run on AP channel. To prevent
power offset out of boundary, it monitors thermal and set proper boundary
to register.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230513054425.9689-3-pkshih@realtek.com
18 months agowifi: rtw89: 8851b: rfk: add RX DCK
Ping-Ke Shih [Sat, 13 May 2023 05:44:23 +0000 (13:44 +0800)]
wifi: rtw89: 8851b: rfk: add RX DCK

RX DCK is receiver DC calibration. With this calibration, we have proper
DC offset to reflect correct received signal strength indicator. Do this
calibration when bringing up interface and going to run on AP channel.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230513054425.9689-2-pkshih@realtek.com
18 months agowifi: rtw89: 8851b: add to parse efuse content
Ping-Ke Shih [Fri, 12 May 2023 06:12:20 +0000 (14:12 +0800)]
wifi: rtw89: 8851b: add to parse efuse content

Parse efuse content to recognize MAC address, RFE type, XTAL offset and
so on. And, parse offset of PHY capability to retrieve TX power
calibration data.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230512061220.16544-7-pkshih@realtek.com
18 months agowifi: rtw89: 8851b: add set channel function
Ping-Ke Shih [Fri, 12 May 2023 06:12:19 +0000 (14:12 +0800)]
wifi: rtw89: 8851b: add set channel function

Set MAC/BB/RF registers according to channel we are going to set. In
additional, certain channels or bands need more deals, such as enable CCK
in 2 GHz band, spur elimination at certain frequencies.

The set channel helper is used to save/restore states before/after setting
channel, and does reset BB to prevent hardware getting stuck in abnormal
state during switching channel and receiving data.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230512061220.16544-6-pkshih@realtek.com
18 months agowifi: rtw89: 8851b: add basic power on function
Ping-Ke Shih [Fri, 12 May 2023 06:12:18 +0000 (14:12 +0800)]
wifi: rtw89: 8851b: add basic power on function

Add basic functions to power on chip and enable and access BB/RF, as
well as reset and hardware settings of BB.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230512061220.16544-5-pkshih@realtek.com
18 months agowifi: rtw89: 8851b: add BT coexistence support function
Ping-Ke Shih [Fri, 12 May 2023 06:12:17 +0000 (14:12 +0800)]
wifi: rtw89: 8851b: add BT coexistence support function

Add 8851B specific parameters of BT coexistence. Since 8851B has special
two antenna hardware module with antenna diversity, BT coexistence needs
to recognize this, so add some fields to store these information for
further use.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230512061220.16544-4-pkshih@realtek.com
18 months agowifi: rtw89: 8851b: configure GPIO according to RFE type
Ping-Ke Shih [Fri, 12 May 2023 06:12:16 +0000 (14:12 +0800)]
wifi: rtw89: 8851b: configure GPIO according to RFE type

Though 8851BE is a 1x1 chip, but it has two antenna hardware module that
needs additional configuration to help choose antenna we are going to use.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230512061220.16544-3-pkshih@realtek.com
18 months agowifi: rtw89: 8851b: add to read efuse version to recognize hardware version B
Ping-Ke Shih [Fri, 12 May 2023 06:12:15 +0000 (14:12 +0800)]
wifi: rtw89: 8851b: add to read efuse version to recognize hardware version B

8851B hardware version A and B use different firmware, but register version
code of these two are the same, so add this helper to read efuse version to
determine which version is installed.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230512061220.16544-2-pkshih@realtek.com
18 months agowifi: rtl8xxxu: Rename some registers
Bitterblue Smith [Sat, 13 May 2023 20:48:27 +0000 (23:48 +0300)]
wifi: rtl8xxxu: Rename some registers

Give proper names:

RF6052_REG_UNKNOWN_56 -> RF6052_REG_PAD_TXG
RF6052_REG_UNKNOWN_DF -> RF6052_REG_GAIN_CCA

And fix typos:

REG_OFDM0_AGCR_SSI_TABLE -> REG_OFDM0_AGC_RSSI_TABLE
REG_BB_ACCEESS_CTRL -> REG_BB_ACCESS_CTRL

Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/40157253-76bd-8b23-06e0-3365139b5395@gmail.com
18 months agowifi: rtl8xxxu: Support new chip RTL8192FU
Bitterblue Smith [Sat, 13 May 2023 20:47:38 +0000 (23:47 +0300)]
wifi: rtl8xxxu: Support new chip RTL8192FU

This is a newer chip, similar to the RTL8710BU in that it uses the same
PHY status structs.

Features: 2.4 GHz, b/g/n mode, 2T2R, 300 Mbps.

It can allegedly have Bluetooth, but that's not implemented here.

This chip can have many RFE (RF front end) types, of which types 1
and 5 are the only ones tested. Many of the other types need different
initialisation tables. They can be added if someone wants them.

The vendor driver v5.8.6.2_35538.20191028_COEX20190910-0d02 from
https://github.com/BrightX/rtl8192fu was used as reference, with
additional device IDs taken from
https://github.com/kelebek333/rtl8192fu-dkms.

The vendor driver also claims to support devices with ID 0bda:a725,
but that is found in some bluetooth-only devices, so it's not supported
here.

Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/7dcf9fb9-1c97-ac28-5286-2236e287a18c@gmail.com
18 months agowifi: brcmfmac: wcc: Add debug messages
Matthias Brugger [Tue, 9 May 2023 10:04:20 +0000 (12:04 +0200)]
wifi: brcmfmac: wcc: Add debug messages

The message is attach and detach function are merly for debugging,
change them from pr_err to pr_debug.

Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230509100420.26094-1-matthias.bgg@kernel.org
18 months agonet: Remove low_thresh in ip defrag
Angus Chen [Fri, 12 May 2023 01:01:52 +0000 (09:01 +0800)]
net: Remove low_thresh in ip defrag

As low_thresh has no work in fragment reassembles,del it.
And Mark it deprecated in sysctl Document.

Signed-off-by: Angus Chen <angus.chen@jaguarmicro.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agoMerge tag 'wireless-next-2023-05-12' of git://git.kernel.org/pub/scm/linux/kernel...
David S. Miller [Mon, 15 May 2023 07:37:17 +0000 (08:37 +0100)]
Merge tag 'wireless-next-2023-05-12' of git://git./linux/kernel/git/wireless/wireless-next

Kalle valo says:

====================
wireless-next patches for v6.5

The first pull request for v6.5 and only driver changes this time.
rtl8xxxu has been making lots of progress lately and now has AP mode
support.

Major changes:

rtl8xxxu

* AP mode support, initially only for rtl8188f

rtw89

* provide RSSI, EVN and SNR statistics via debugfs

* support U-NII-4 channels on 5 GHz band
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agosfc: fix use-after-free in efx_tc_flower_record_encap_match()
Edward Cree [Fri, 12 May 2023 15:35:58 +0000 (16:35 +0100)]
sfc: fix use-after-free in efx_tc_flower_record_encap_match()

When writing error messages to extack for pseudo collisions, we can't
 use encap->type as encap has already been freed.  Fortunately the
 same value is stored in local variable em_type, so use that instead.

Fixes: 3c9561c0a5b9 ("sfc: support TC decap rules matching on enc_ip_tos")
Reported-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agonet: phylink: constify fwnode arguments
Russell King (Oracle) [Fri, 12 May 2023 16:58:37 +0000 (17:58 +0100)]
net: phylink: constify fwnode arguments

Both phylink_create() and phylink_fwnode_phy_connect() do not modify
the fwnode argument that they are passed, so lets constify these.

Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agonet: fec: using the standard return codes when xdp xmit errors
Shenwei Wang [Fri, 12 May 2023 13:20:10 +0000 (08:20 -0500)]
net: fec: using the standard return codes when xdp xmit errors

This patch standardizes the inconsistent return values for unsuccessful
XDP transmits by using standardized error codes (-EBUSY or -ENOMEM).

Signed-off-by: Shenwei Wang <shenwei.wang@nxp.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agonet: macb: Shorten max_tx_len to 4KiB - 56 on mpfs
Daire McNamara [Fri, 12 May 2023 12:20:32 +0000 (13:20 +0100)]
net: macb: Shorten max_tx_len to 4KiB - 56 on mpfs

On mpfs, with SRAM configured for 4 queues, setting max_tx_len
to GEM_TX_MAX_LEN=0x3f0 results multiple AMBA errors.
Setting max_tx_len to (4KiB - 56) removes those errors.

The details are described in erratum 1686 by Cadence

The max jumbo frame size is also reduced for mpfs to (4KiB - 56).

Signed-off-by: Daire McNamara <daire.mcnamara@microchip.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agoping: Convert hlist_nulls to plain hlist.
Kuniyuki Iwashima [Wed, 10 May 2023 21:54:43 +0000 (14:54 -0700)]
ping: Convert hlist_nulls to plain hlist.

Since introduced in commit c319b4d76b9e ("net: ipv4: add IPPROTO_ICMP
socket kind"), ping socket does not use SLAB_TYPESAFE_BY_RCU nor check
nulls marker in loops.

Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agoMerge branch 'skb_frag_fill_page_desc'
David S. Miller [Sat, 13 May 2023 18:47:56 +0000 (19:47 +0100)]
Merge branch 'skb_frag_fill_page_desc'

Yunsheng Lin says:

====================
net: introduce skb_frag_fill_page_desc()

Most users use __skb_frag_set_page()/skb_frag_off_set()/
skb_frag_size_set() to fill the page desc for a skb frag.
It does not make much sense to calling __skb_frag_set_page()
without calling skb_frag_off_set(), as the offset may depend
on whether the page is head page or tail page, so add
skb_frag_fill_page_desc() to fill the page desc for a skb
frag.

In the future, we can make sure the page in the frag is
head page of compound page or a base page, if not, we
may warn about that and convert the tail page to head
page and update the offset accordingly, if we see a warning
about that, we also fix the caller to fill the head page
in the frag. when the fixing is done, we may remove the
warning and converting.

In this way, we can remove the compound_head() or use
page_ref_*() like the below case:
https://elixir.bootlin.com/linux/latest/source/net/core/page_pool.c#L881
https://elixir.bootlin.com/linux/latest/source/include/linux/skbuff.h#L3383

It may also convert net stack to use the folio easier.

V1: repost with all the ack/review tags included.
RFC: remove a local variable as pointed out by Simon.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agonet: remove __skb_frag_set_page()
Yunsheng Lin [Thu, 11 May 2023 01:12:13 +0000 (09:12 +0800)]
net: remove __skb_frag_set_page()

The remaining users calling __skb_frag_set_page() with
page being NULL seems to be doing defensive programming,
as shinfo->nr_frags is already decremented, so remove
them.

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agonet: introduce and use skb_frag_fill_page_desc()
Yunsheng Lin [Thu, 11 May 2023 01:12:12 +0000 (09:12 +0800)]
net: introduce and use skb_frag_fill_page_desc()

Most users use __skb_frag_set_page()/skb_frag_off_set()/
skb_frag_size_set() to fill the page desc for a skb frag.

Introduce skb_frag_fill_page_desc() to do that.

net/bpf/test_run.c does not call skb_frag_off_set() to
set the offset, "copy_from_user(page_address(page), ...)"
and 'shinfo' being part of the 'data' kzalloced in
bpf_test_init() suggest that it is assuming offset to be
initialized as zero, so call skb_frag_fill_page_desc()
with offset being zero for this case.

Also, skb_frag_set_page() is not used anymore, so remove
it.

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agoselftests: net: vxlan: Add tests for vxlan nolocalbypass option.
Vladimir Nikishkin [Fri, 12 May 2023 03:40:34 +0000 (11:40 +0800)]
selftests: net: vxlan: Add tests for vxlan nolocalbypass option.

Add test to make sure that the localbypass option is on by default.

Add test to change vxlan localbypass to nolocalbypass and check
that packets are delivered to userspace.

Signed-off-by: Vladimir Nikishkin <vladimir@nikishkin.pw>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agonet: vxlan: Add nolocalbypass option to vxlan.
Vladimir Nikishkin [Fri, 12 May 2023 03:40:33 +0000 (11:40 +0800)]
net: vxlan: Add nolocalbypass option to vxlan.

If a packet needs to be encapsulated towards a local destination IP, the
packet will undergo a "local bypass" and be injected into the Rx path as
if it was received by the target VXLAN device without undergoing
encapsulation. If such a device does not exist, the packet will be
dropped.

There are scenarios where we do not want to perform such a bypass, but
instead want the packet to be encapsulated and locally received by a
user space program for post-processing.

To that end, add a new VXLAN device attribute that controls whether a
"local bypass" is performed or not. Default to performing a bypass to
maintain existing behavior.

Signed-off-by: Vladimir Nikishkin <vladimir@nikishkin.pw>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agoMerge branch 'broadcom-phy-wol'
David S. Miller [Sat, 13 May 2023 15:56:29 +0000 (16:56 +0100)]
Merge branch 'broadcom-phy-wol'

Florian Fainelli says:

====================
Support for Wake-on-LAN for Broadcom PHYs

This patch series adds support for Wake-on-LAN to the Broadcom PHY
driver. Specifically the BCM54210E/B50212E are capable of supporting
Wake-on-LAN using an external pin typically wired up to a system's GPIO.

These PHY operate a programmable Ethernet MAC destination address
comparator which will fire up an interrupt whenever a match is received.
Because of that, it was necessary to introduce patch #1 which allows the
PHY driver's ->suspend() routine to be called unconditionally. This is
necessary in our case because we need a hook point into the device
suspend/resume flow to enable the wake-up interrupt as late as possible.

Patch #2 adds support for the Broadcom PHY library and driver for
Wake-on-LAN proper with the WAKE_UCAST, WAKE_MCAST, WAKE_BCAST,
WAKE_MAGIC and WAKE_MAGICSECURE. Note that WAKE_FILTER is supportable,
however this will require further discussions and be submitted as a RFC
series later on.

Patch #3 updates the GENET driver to defer to the PHY for Wake-on-LAN if
the PHY supports it, thus allowing the MAC to be powered down to
conserve power.

Changes in v3:

- collected Reviewed-by tags
- explicitly use return 0 in bcm54xx_phy_probe() (Paolo)

Changes in v2:

- introduce PHY_ALWAYS_CALL_SUSPEND and only have the Broadcom PHY
  driver set this flag to minimize changes to the suspend flow to only
  drivers that need it

- corrected possibly uninitialized variable in bcm54xx_set_wakeup_irq
  (Simon)
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agonet: bcmgenet: Add support for PHY-based Wake-on-LAN
Florian Fainelli [Thu, 11 May 2023 17:21:10 +0000 (10:21 -0700)]
net: bcmgenet: Add support for PHY-based Wake-on-LAN

If available, interrogate the PHY to find out whether we can use it for
Wake-on-LAN. This can be a more power efficient way of implementing
that feature, especially when the MAC is powered off in low power
states.

Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agonet: phy: broadcom: Add support for Wake-on-LAN
Florian Fainelli [Thu, 11 May 2023 17:21:09 +0000 (10:21 -0700)]
net: phy: broadcom: Add support for Wake-on-LAN

Add support for WAKE_UCAST, WAKE_MCAST, WAKE_BCAST, WAKE_MAGIC and
WAKE_MAGICSECURE. This is only supported with the BCM54210E and
compatible Ethernet PHYs. Using the in-band interrupt or an out of band
GPIO interrupts are supported.

Broadcom PHYs will generate a Wake-on-LAN level low interrupt on LED4 as
soon as one of the supported patterns is being matched. That includes
generating such an interrupt even if the PHY is operated during normal
modes. If WAKE_UCAST is selected, this could lead to the LED4 interrupt
firing up for every packet being received which is absolutely
undesirable from a performance point of view.

Because the Wake-on-LAN configuration can be set long before the system
is actually put to sleep, we cannot have an interrupt service routine to
clear on read the interrupt status register and ensure that new packet
matches will be detected.

It is desirable to enable the Wake-on-LAN interrupt as late as possible
during the system suspend process such that we limit the number of
interrupts to be handled by the system, but also conversely feed into
the Linux's system suspend way of dealing with interrupts in and around
the points of no return.

Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agonet: phy: Allow drivers to always call into ->suspend()
Florian Fainelli [Thu, 11 May 2023 17:21:08 +0000 (10:21 -0700)]
net: phy: Allow drivers to always call into ->suspend()

A few PHY drivers are currently attempting to not suspend the PHY when
Wake-on-LAN is enabled, however that code is not currently executing at
all due to an early check in phy_suspend().

This prevents PHY drivers from making an appropriate decisions and put
the hardware into a low power state if desired.

In order to allow the PHY drivers to opt into getting their ->suspend
routine to be called, add a PHY_ALWAYS_CALL_SUSPEND bit which can be
set. A boolean that tracks whether the PHY or the attached MAC has
Wake-on-LAN enabled is also provided for convenience.

If phydev::wol_enabled then the PHY shall not prevent its own
Wake-on-LAN detection logic from working and shall not prevent the
Ethernet MAC from receiving packets for matching.

Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agoMerge branch 'sfc-decap'
David S. Miller [Fri, 12 May 2023 09:37:02 +0000 (10:37 +0100)]
Merge branch 'sfc-decap'

Edward Cree says:

====================
sfc: more flexible encap matches on TC decap rules

This series extends the TC offload support on EF100 to support optionally
 matching on the IP ToS and UDP source port of the outer header in rules
 performing tunnel decapsulation.  Both of these fields allow masked
 matches if the underlying hardware supports it (current EF100 hardware
 supports masking on ToS, but only exact-match on source port).
Given that the source port is typically populated from a hash of inner
 header entropy, it's not clear whether filtering on it is useful, but
 since we can support it we may as well expose the capability.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agosfc: support TC decap rules matching on enc_src_port
Edward Cree [Thu, 11 May 2023 19:47:31 +0000 (20:47 +0100)]
sfc: support TC decap rules matching on enc_src_port

Allow efx_tc_encap_match entries to include a udp_sport and a
 udp_sport_mask.  As with enc_ip_tos, use pseudos to enforce that all
 encap matches within a given <src_ip,dst_ip,udp_dport> tuple have
 the same udp_sport_mask.
Note that since we use a single layer of pseudos for both fields, two
 matches that differ in (say) udp_sport value aren't permitted to have
 different ip_tos_mask, even though this would technically be safe.
Current userland TC does not support setting enc_src_port; this patch
 was tested with an iproute2 patched to support it.

Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agosfc: support TC decap rules matching on enc_ip_tos
Edward Cree [Thu, 11 May 2023 19:47:30 +0000 (20:47 +0100)]
sfc: support TC decap rules matching on enc_ip_tos

Allow efx_tc_encap_match entries to include an ip_tos and ip_tos_mask.
To avoid partially-overlapping Outer Rules (which can lead to undefined
 behaviour in the hardware), store extra "pseudo" entries in our
 encap_match hashtable, which are used to enforce that all Outer Rule
 entries within a given <src_ip,dst_ip,udp_dport> tuple (or IPv6
 equivalent) have the same ip_tos_mask.
The "direct" encap_match entry takes a reference on the "pseudo",
 allowing it to be destroyed when all "direct" entries using it are
 removed.
efx_tc_em_pseudo_type is an enum rather than just a bool because in
 future an additional pseudo-type will be added to support Conntrack
 offload.

Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agosfc: populate enc_ip_tos matches in MAE outer rules
Edward Cree [Thu, 11 May 2023 19:47:29 +0000 (20:47 +0100)]
sfc: populate enc_ip_tos matches in MAE outer rules

Currently tc.c will block them before they get here, but following
 patch will change that.
Use the extack message from efx_mae_check_encap_match_caps() instead
 of writing a new one, since there's now more being fed in than just
 an IP version.

Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agosfc: release encap match in efx_tc_flow_free()
Edward Cree [Thu, 11 May 2023 19:47:28 +0000 (20:47 +0100)]
sfc: release encap match in efx_tc_flow_free()

When force-freeing leftover entries from our match_action_ht, call
 efx_tc_delete_rule(), which releases all the rule's resources, rather
 than open-coding it.  The open-coded version was missing a call to
 release the rule's encap match (if any).
It probably doesn't matter as everything's being torn down anyway, but
 it's cleaner this way and prevents further error messages potentially
 being logged by efx_tc_encap_match_free() later on.
Move efx_tc_flow_free() further down the file to avoid introducing a
 forward declaration of efx_tc_delete_rule().

Fixes: 17654d84b47c ("sfc: add offloading of 'foreign' TC (decap) rules")
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agonet: liquidio: lio_main: Remove unnecessary (void*) conversions
wuych [Fri, 12 May 2023 02:44:03 +0000 (10:44 +0800)]
net: liquidio: lio_main: Remove unnecessary (void*) conversions

Pointer variables of void * type do not require type cast.

Signed-off-by: wuych <yunchuan@nfschina.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agosctp: add bpf_bypass_getsockopt proto callback
Alexander Mikhalitsyn [Thu, 11 May 2023 13:25:06 +0000 (15:25 +0200)]
sctp: add bpf_bypass_getsockopt proto callback

Implement ->bpf_bypass_getsockopt proto callback and filter out
SCTP_SOCKOPT_PEELOFF, SCTP_SOCKOPT_PEELOFF_FLAGS and SCTP_SOCKOPT_CONNECTX3
socket options from running eBPF hook on them.

SCTP_SOCKOPT_PEELOFF and SCTP_SOCKOPT_PEELOFF_FLAGS options do fd_install(),
and if BPF_CGROUP_RUN_PROG_GETSOCKOPT hook returns an error after success of
the original handler sctp_getsockopt(...), userspace will receive an error
from getsockopt syscall and will be not aware that fd was successfully
installed into a fdtable.

As pointed by Marcelo Ricardo Leitner it seems reasonable to skip
bpf getsockopt hook for SCTP_SOCKOPT_CONNECTX3 sockopt too.
Because internaly, it triggers connect() and if error is masked
then userspace will be confused.

This patch was born as a result of discussion around a new SCM_PIDFD interface:
https://lore.kernel.org/all/20230413133355.350571-3-aleksandr.mikhalitsyn@canonical.com/

Fixes: 0d01da6afc54 ("bpf: implement getsockopt and setsockopt hooks")
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Stanislav Fomichev <sdf@google.com>
Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Cc: Xin Long <lucien.xin@gmail.com>
Cc: linux-sctp@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: netdev@vger.kernel.org
Suggested-by: Stanislav Fomichev <sdf@google.com>
Acked-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com>
Acked-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agoMerge branch 'selftests-fcnal'
David S. Miller [Fri, 12 May 2023 08:43:56 +0000 (09:43 +0100)]
Merge branch 'selftests-fcnal'

Guillaume Nault says:

====================
selftests: fcnal: Test SO_DONTROUTE socket option.

The objective is to cover kernel paths that use the RTO_ONLINK flag
in .flowi4_tos. This way we'll be able to safely remove this flag in
the future by properly setting .flowi4_scope instead. With these
selftests in place, we can make sure this won't introduce regressions.

For more context, the final objective is to convert .flowi4_tos to
dscp_t, to ensure that ECN bits don't influence route and fib-rule
lookups (see commit a410a0cf9885 ("ipv6: Define dscp_t and stop taking
ECN bits into account in fib6-rules")).

These selftests only cover IPv4, as SO_DONTROUTE has no effect on IPv6
sockets.

v2:
  - Use two different nettest options for setting SO_DONTROUTE either
    on the server or on the client socket.

  - Use the above feature to run a single 'nettest -B' instance per
    test (instead of having two nettest processes for server and
    client).
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agoselftests: fcnal: Test SO_DONTROUTE on raw and ping sockets.
Guillaume Nault [Thu, 11 May 2023 14:39:46 +0000 (16:39 +0200)]
selftests: fcnal: Test SO_DONTROUTE on raw and ping sockets.

Use ping -r to test the kernel behaviour with raw and ping sockets
having the SO_DONTROUTE option.

Since ipv4_ping_novrf() is called with different values of
net.ipv4.ping_group_range, then it tests both raw and ping sockets
(ping uses ping sockets if its user ID belongs to ping_group_range
and raw sockets otherwise).

With both socket types, sending packets to a neighbour (on link) host,
should work. When the host is behind a router, sending should fail.

Signed-off-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agoselftests: fcnal: Test SO_DONTROUTE on UDP sockets.
Guillaume Nault [Thu, 11 May 2023 14:39:39 +0000 (16:39 +0200)]
selftests: fcnal: Test SO_DONTROUTE on UDP sockets.

Use nettest --client-dontroute to test the kernel behaviour with UDP
sockets having the SO_DONTROUTE option. Sending packets to a neighbour
(on link) host, should work. When the host is behind a router, sending
should fail.

Signed-off-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agoselftests: fcnal: Test SO_DONTROUTE on TCP sockets.
Guillaume Nault [Thu, 11 May 2023 14:39:32 +0000 (16:39 +0200)]
selftests: fcnal: Test SO_DONTROUTE on TCP sockets.

Use nettest --{client,server}-dontroute to test the kernel behaviour
with TCP sockets having the SO_DONTROUTE option. Sending packets to a
neighbour (on link) host, should work. When the host is behind a
router, sending should fail.

Client and server sockets are tested independently, so that we can
cover different TCP kernel paths.

SO_DONTROUTE also affects the syncookies path. So ipv4_tcp_dontroute()
is made to work with or without syncookies, to cover both paths.

Signed-off-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agoselftests: Add SO_DONTROUTE option to nettest.
Guillaume Nault [Thu, 11 May 2023 14:39:25 +0000 (16:39 +0200)]
selftests: Add SO_DONTROUTE option to nettest.

Add --client-dontroute and --server-dontroute options to nettest. They
allow to set the SO_DONTROUTE option to the client and server sockets
respectively. This will be used by the following patches to test
the SO_DONTROUTE kernel behaviour with TCP and UDP.

Signed-off-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agobonding: Always assign be16 value to vlan_proto
Simon Horman [Thu, 11 May 2023 15:07:12 +0000 (17:07 +0200)]
bonding: Always assign be16 value to vlan_proto

The type of the vlan_proto field is __be16.
And most users of the field use it as such.

In the case of setting or testing the field for the special VLAN_N_VID
value, host byte order is used. Which seems incorrect.

It also seems somewhat odd to store a VLAN ID value in a field that is
otherwise used to store Ether types.

Address this issue by defining BOND_VLAN_PROTO_NONE, a big endian value.
0xffff was chosen somewhat arbitrarily. What is important is that it
doesn't overlap with any valid VLAN Ether types.

I don't believe the problems described above are a bug because
VLAN_N_VID in both little-endian and big-endian byte order does not
conflict with any supported VLAN Ether types in big-endian byte order.

Reported by sparse as:

 .../bond_main.c:2857:26: warning: restricted __be16 degrades to integer
 .../bond_main.c:2863:20: warning: restricted __be16 degrades to integer
 .../bond_main.c:2939:40: warning: incorrect type in assignment (different base types)
 .../bond_main.c:2939:40:    expected restricted __be16 [usertype] vlan_proto
 .../bond_main.c:2939:40:    got int

No functional changes intended.
Compile tested only.

Signed-off-by: Simon Horman <horms@kernel.org>
Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agoMerge branch 'net-handshake-fixes'
David S. Miller [Fri, 12 May 2023 08:24:08 +0000 (09:24 +0100)]
Merge branch 'net-handshake-fixes'

Chuck Lever says:

====================
Bug fixes for net/handshake

Please consider these for merge via net-next.

Paolo observed that there is a possible leak of sock->file. I
haven't looked into that yet, but it seems to be separate from
the fixes in this series, so no need to hold these up.

Changes since v2:
- Address Paolo comment regarding handshake_dup()

Changes since v1:
- Rework "Fix handshake_dup() ref counting"
- Unpin sock->file when a handshake is cancelled
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agonet/handshake: Enable the SNI extension to work properly
Chuck Lever [Thu, 11 May 2023 15:49:50 +0000 (11:49 -0400)]
net/handshake: Enable the SNI extension to work properly

Enable the upper layer protocol to specify the SNI peername. This
avoids the need for tlshd to use a DNS lookup, which can return a
hostname that doesn't match the incoming certificate's SubjectName.

Fixes: 2fd5532044a8 ("net/handshake: Add a kernel API for requesting a TLSv1.3 handshake")
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agonet/handshake: Unpin sock->file if a handshake is cancelled
Chuck Lever [Thu, 11 May 2023 15:49:17 +0000 (11:49 -0400)]
net/handshake: Unpin sock->file if a handshake is cancelled

If user space never calls DONE, sock->file's reference count remains
elevated. Enable sock->file to be freed eventually in this case.

Reported-by: Jakub Kacinski <kuba@kernel.org>
Fixes: 3b3009ea8abb ("net/handshake: Create a NETLINK service for handling handshake requests")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agonet/handshake: handshake_genl_notify() shouldn't ignore @flags
Chuck Lever [Thu, 11 May 2023 15:48:45 +0000 (11:48 -0400)]
net/handshake: handshake_genl_notify() shouldn't ignore @flags

Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Fixes: 3b3009ea8abb ("net/handshake: Create a NETLINK service for handling handshake requests")
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agonet/handshake: Fix uninitialized local variable
Chuck Lever [Thu, 11 May 2023 15:48:13 +0000 (11:48 -0400)]
net/handshake: Fix uninitialized local variable

trace_handshake_cmd_done_err() simply records the pointer in @req,
so initializing it to NULL is sufficient and safe.

Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Fixes: 3b3009ea8abb ("net/handshake: Create a NETLINK service for handling handshake requests")
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agonet/handshake: Fix handshake_dup() ref counting
Chuck Lever [Thu, 11 May 2023 15:47:40 +0000 (11:47 -0400)]
net/handshake: Fix handshake_dup() ref counting

If get_unused_fd_flags() fails, we ended up calling fput(sock->file)
twice.

Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Suggested-by: Paolo Abeni <pabeni@redhat.com>
Fixes: 3b3009ea8abb ("net/handshake: Create a NETLINK service for handling handshake requests")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agonet/handshake: Remove unneeded check from handshake_dup()
Chuck Lever [Thu, 11 May 2023 15:47:09 +0000 (11:47 -0400)]
net/handshake: Remove unneeded check from handshake_dup()

handshake_req_submit() now verifies that the socket has a file.

Fixes: 3b3009ea8abb ("net/handshake: Create a NETLINK service for handling handshake requests")
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agoipvlan: Remove NULL check before dev_{put, hold}
Yang Li [Thu, 11 May 2023 07:21:19 +0000 (15:21 +0800)]
ipvlan: Remove NULL check before dev_{put, hold}

The call netdev_{put, hold} of dev_{put, hold} will check NULL,
so there is no need to check before using dev_{put, hold},
remove it to silence the warning:

./drivers/net/ipvlan/ipvlan_core.c:559:3-11: WARNING: NULL check before dev_{put, hold} functions is not needed.

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=4930
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agoocteontx2-pf: mcs: Offload extended packet number(XPN) feature
Subbaraya Sundeep [Thu, 11 May 2023 06:17:12 +0000 (11:47 +0530)]
octeontx2-pf: mcs: Offload extended packet number(XPN) feature

The macsec hardware block supports XPN cipher suites also.
Hence added changes to offload XPN feature. Changes include
configuring SecY policy to XPN cipher suite, Salt and SSCI values.
64 bit packet number is passed instead of 32 bit packet number.

Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agonet: samsung: sxgbe: Make sxgbe_drv_remove() return void
Uwe Kleine-König [Wed, 10 May 2023 20:02:47 +0000 (22:02 +0200)]
net: samsung: sxgbe: Make sxgbe_drv_remove() return void

sxgbe_drv_remove() returned zero unconditionally, so it can be converted
to return void without losing anything. The upside is that it becomes
more obvious in its callers that there is no error to handle.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
18 months agonet: enc28j60: Use threaded interrupt instead of workqueue
Philipp Rosenberger [Tue, 9 May 2023 04:28:56 +0000 (06:28 +0200)]
net: enc28j60: Use threaded interrupt instead of workqueue

The Microchip ENC28J60 SPI Ethernet driver schedules a work item from
the interrupt handler because accesses to the SPI bus may sleep.

On PREEMPT_RT (which forces interrupt handling into threads) this
old-fashioned approach unnecessarily increases latency because an
interrupt results in first waking the interrupt thread, then scheduling
the work item.  So, a double indirection to handle an interrupt.

Avoid by converting the driver to modern threaded interrupt handling.

Signed-off-by: Philipp Rosenberger <p.rosenberger@kunbus.com>
Signed-off-by: Zhi Han <hanzhi09@gmail.com>
[lukas: rewrite commit message, linewrap request_threaded_irq() call]
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Reviewed-by: Piotr Raczynski <piotr.raczynski@intel.com>
Link: https://lore.kernel.org/r/342380d989ce26bc49f0e5d45fbb0416a5f7809f.1683606193.git.lukas@wunner.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>