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path: root/drivers/net/wireless/ath/ath11k/wow.c
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2022-05-10ath11k: Handle keepalive during WoWLAN suspend and resumeBaochen Qiang
With WoWLAN enabled and after sleeping for a rather long time, we are seeing that with some APs, it is not able to wake up the STA though the correct wake up pattern has been configured. This is because the host doesn't send keepalive command to firmware, thus firmware will not send any packet to the AP and after a specific time the AP kicks out the STA. Fix this issue by enabling keepalive before going to suspend and disabling it after resume back. Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1 Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/20220506012540.1579604-1-quic_bqiang@quicinc.com
2022-04-23ath11k: fix missing unlock on error in ath11k_wow_op_resume()Yang Yingliang
Add the missing unlock before return from function ath11k_wow_op_resume() in the error handling case. Fixes: 90bf5c8d0f7e ("ath11k: purge rx pktlog when entering WoW") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/20220408030912.3087293-1-yangyingliang@huawei.com
2022-04-05ath11k: fix driver initialization failure with WoW unsupported hwNagarajan Maran
In the "ath11k_wow_init", error value "EINVAL" is returned when the check for firmware support of WoW feature fails, which in turn stops the driver initialization. Warning message: [ 31.040144] ------------[ cut here ]------------ [ 31.040185] WARNING: CPU: 1 PID: 51 at drivers/net/wireless/ath/ath11k/wow.c:813 ath11k_wow_init+0xc8/0x13a8 [ath11k] [ 31.043846] Modules linked in: ath11k_pci ath11k qmi_helpers [ 31.054341] CPU: 1 PID: 51 Comm: kworker/u8:1 Tainted: G W 5.17.0-wt-ath-594817-ga7f6aa925cf8-dirty #17 [ 31.060078] Hardware name: Qualcomm Technologies, Inc. IPQ8074/AP-HK10-C2 (DT) [ 31.070578] Workqueue: ath11k_qmi_driver_event ath11k_qmi_driver_event_work [ath11k] [ 31.077782] pstate: 80000005 (Nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 31.085676] pc : ath11k_wow_init+0xc8/0x13a8 [ath11k] [ 31.092359] lr : ath11k_mac_register+0x548/0xb98 [ath11k] [ 31.097567] sp : ffff80000aa13c40 [ 31.102944] x29: ffff80000aa13c40 x28: ffff800009184390 x27: ffff000002959f20 [ 31.106251] x26: ffff000002828000 x25: ffff000002830000 x24: ffff000002830000 [ 31.113369] x23: ffff000002820000 x22: ffff00000282854c x21: 0000000000000000 [ 31.120487] x20: ffff00000295cf20 x19: ffff000002828540 x18: 0000000000000031 [ 31.127605] x17: 0000000000000004 x16: ffff0000028285fc x15: ffff00000295b040 [ 31.134723] x14: 0000000000000067 x13: ffff00000282859c x12: 000000000000000d [ 31.141840] x11: 0000000000000018 x10: 0000000000000004 x9 : 0000000000000000 [ 31.148959] x8 : ffff00000289d680 x7 : 0000000000000000 x6 : 000000000000003f [ 31.156077] x5 : 0000000000000040 x4 : 0000000000000000 x3 : ffff000002820968 [ 31.163196] x2 : 0000000000000080 x1 : 0080008af9981779 x0 : ffff000002959f20 [ 31.170314] Call trace: [ 31.177421] ath11k_wow_init+0xc8/0x13a8 [ath11k] [ 31.179684] ath11k_core_qmi_firmware_ready+0x430/0x5e0 [ath11k] [ 31.184548] ath11k_qmi_driver_event_work+0x16c/0x4f8 [ath11k] [ 31.190623] process_one_work+0x134/0x350 [ 31.196262] worker_thread+0x12c/0x450 [ 31.200340] kthread+0xf4/0x110 [ 31.203986] ret_from_fork+0x10/0x20 [ 31.207026] ---[ end trace 0000000000000000 ]--- [ 31.210894] ath11k_pci 0000:01:00.0: failed to init wow: -22 [ 31.215467] ath11k_pci 0000:01:00.0: failed register the radio with mac80211: -22 [ 31.221117] ath11k_pci 0000:01:00.0: failed to create pdev core: -22 Fix this by returning value "0" when FW doesn't support WoW to allow driver to proceed with initialize sequence and also remove the unnecessary "WARN_ON". Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1 Fixes: ba9177fcef21 ("ath11k: Add basic WoW functionalities") Signed-off-by: Nagarajan Maran <quic_nmaran@quicinc.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/20220331073110.3846-1-quic_nmaran@quicinc.com
2022-03-18ath11k: support GTK rekey offloadCarl Huang
Host sets GTK related info to firmware before WoW is enabled, and gets rekey replay_count and then disables GTK rekey when WoW quits. Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1 Signed-off-by: Carl Huang <quic_cjhuang@quicinc.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/1644308006-22784-7-git-send-email-quic_cjhuang@quicinc.com
2022-03-18ath11k: support ARP and NS offloadCarl Huang
Support ARP and NS offload in WoW state. Tested this way: put machine A with QCA6390 to WoW state, ping/ping6 machine A from another machine B, check sniffer to see any ARP response and Neighbour advertisement from machine A. Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1 Signed-off-by: Carl Huang <quic_cjhuang@quicinc.com> Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/1644308006-22784-6-git-send-email-quic_cjhuang@quicinc.com
2022-03-18ath11k: purge rx pktlog when entering WoWCarl Huang
This change is to purge rx pktlog when entering WoW and reap the mon_status buffer to keep it empty. When leaving WoW, host restarts the reap timer. In WoW state, it's not allowed to feed into mon_status rings per firmware team's recommendation. Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1 Signed-off-by: Carl Huang <quic_cjhuang@quicinc.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/1644308006-22784-5-git-send-email-quic_cjhuang@quicinc.com
2022-03-18ath11k: implement hardware data filterCarl Huang
Host needs to set hardware data filter before entering WoW to let firmware drop needless broadcast/mulitcast frames to avoid frequent wakeup. Host clears hardware data filter when leaving WoW. Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1 Signed-off-by: Carl Huang <quic_cjhuang@quicinc.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/1644308006-22784-4-git-send-email-quic_cjhuang@quicinc.com
2022-03-18ath11k: Add WoW net-detect functionalityCarl Huang
Implement net-detect feature by setting flag WIPHY_WOWLAN_NET_DETECT if firmware supports this feature. Driver sets the related PNO configuration to firmware before entering WoW and firmware then scans periodically and wakes up host if a specific SSID is found. Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1 Signed-off-by: Carl Huang <quic_cjhuang@quicinc.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/1644308006-22784-3-git-send-email-quic_cjhuang@quicinc.com
2022-03-18ath11k: Add basic WoW functionalitiesCarl Huang
Implement basic WoW functionalities such as magic-packet, disconnect and pattern. The logic is very similar to ath10k. When WoW is configured, ath11k_core_suspend and ath11k_core_resume are skipped as WoW configuration and hif suspend/resume are done in ath11k_wow_op_suspend() and ath11k_wow_op_resume(). Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1 Signed-off-by: Carl Huang <quic_cjhuang@quicinc.com> Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com> Signed-off-by: Wen Gong <quic_wgong@quicinc.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/1644308006-22784-2-git-send-email-quic_cjhuang@quicinc.com
2020-12-12ath11k: implement WoW enable and wakeup commandsCarl Huang
Implement wow enable ane wow wakeup commands which are needed for suspend. Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1 Signed-off-by: Carl Huang <cjhuang@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/1607708150-21066-9-git-send-email-kvalo@codeaurora.org