kernel/drivers/net/wireless/ath/ath11k/htc.c, branch linux-6.2.y

ath11k: fix missing skb drop on htc_tx_completion error

2022-06-06T14:07:05Z

On htc_tx_completion error the skb is not dropped. This is wrong since the completion_handler logic expect the skb to be consumed anyway even when an error is triggered. Not freeing the skb on error is a memory leak since the skb won't be freed anywere else. Correctly free the packet on eid >= ATH11K_HTC_EP_COUNT before returning. Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-01208-QCAHKSWPL_SILICONZ-1 Fixes: f951380a6022 ("ath11k: Disabling credit flow for WMI path") Signed-off-by: Christian 'Ansuel' Marangi Reviewed-by: Jeff Johnson Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20220528142516.20819-2-ansuelsmth@gmail.com

ath11k: Add basic WoW functionalities

2022-03-18T15:34:37Z

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 Signed-off-by: Baochen Qiang Signed-off-by: Wen Gong Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/1644308006-22784-2-git-send-email-quic_cjhuang@quicinc.com

ath11k: Disabling credit flow for WMI path

2021-11-17T07:28:04Z

Firmware credit flow control is enabled for WMI control services, which expects available tokens should be acquired before sending a command to the target. Also the token gets released when firmware receives the command. This credit-based flow limits driver to send WMI command only when the token available which is causing WMI commands to timeout and return -EAGAIN, whereas firmware has enough capability to process the WMI command. To fix this Tx starvation issue, introduce the ability to disable the credit flow for the WMI path. The driver sends WMI configuration for disabling credit flow to firmware by two ways. 1. By using a global flag (HTC_MSG_SETUP_COMPLETE_EX_ID msg type flags) 2. By using a local flag (ATH11K_HTC_CONN_FLAGS_DISABLE_CREDIT_FLOW_CTRL = 1 << 3) Ath11k uses both these configurations to disable credit flow for the WMI path completely. Also added a hw_param member for credit flow control by which we can enable or disable it based on per-target basis. Currently we are disabling credit flow for IPQ8074, IPQ6018, and QCN9074 as recommended by firmware. Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01492-QCAHKSWPL_SILICONZ-1 Tested-on: IPQ6018 hw1.0 AHB WLAN.HK.2.4.0.1-00330-QCAHKSWPL_SILICONZ-1 Co-developed-by: Pravas Kumar Panda Signed-off-by: Pravas Kumar Panda Signed-off-by: P Praneesh Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/1635156494-20059-1-git-send-email-quic_ppranees@quicinc.com

ath11k: set credit_update flag for flow controlled ep only

2020-12-12T04:41:34Z

Firmware will check all the pipes before entering WoW mode during suspend. If ATH11K_HTC_FLAG_NEED_CREDIT_UPDATE is set, firmware treats this pipe needed to return credit even though it's actually not required. If any pipe needs to return credit, the suspend_complete message doesn't send to host but is dropped. So host gets time out and WoW suspend failed. Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1 Signed-off-by: Carl Huang Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/1607708150-21066-8-git-send-email-kvalo@codeaurora.org

ath11k: htc: implement suspend handling

2020-12-12T04:41:28Z

When ath11k sends suspend command to firmware, firmware will return suspend_complete events and add handlers for those. Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1 Signed-off-by: Carl Huang Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/1607708150-21066-6-git-send-email-kvalo@codeaurora.org

ath11k: set WMI pipe credit to 1 for QCA6390

2020-10-01T19:33:07Z

For QCA6390, set wmi credit to 1 to avoid back-to-back write to shadow register when shadow register is enabled. Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1 Signed-off-by: Carl Huang Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/1601544890-13450-4-git-send-email-kvalo@codeaurora.org

ath11k: Remove unused function ath11k_htc_restore_tx_skb()

2020-09-22T07:45:53Z

There is no caller in tree, so can remove it. Signed-off-by: YueHaibing Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20200918131242.24000-1-yuehaibing@huawei.com

ath11k: ce: remove CE_COUNT() macro

2020-08-18T09:44:28Z

This macro is evil as it's accesses ab variable in a hidden way. It's better for readibility to access ab->hw_params.ce_count directly. This is done in a separate patch to keep the patches simple. No functional changes. Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1 Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2 Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/1597576599-8857-6-git-send-email-kvalo@codeaurora.org

ath11k: define max_radios in hw_params

2020-06-23T07:51:40Z

IPQ6018 needs different value for max_radios so make it configurable via hw_params. No functional changes. Compile tested only. Signed-off-by: Anilkumar Kolli Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/1592316055-24958-4-git-send-email-kvalo@codeaurora.org

ath11k: Remove bus layer includes from upper layer

2020-05-11T12:35:06Z

Bus level header files needs to be abstracted by upper layer. Remove bus layer includes by adding appropriate header files. Signed-off-by: Govind Singh Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20200506094400.4740-4-govinds@codeaurora.org