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path: root/drivers/net/wireless/ath/ath12k/hal_rx.c
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2025-05-19wifi: ath12k: change soc name to device nameVinith Kumar R
To have consistent nomenclature, replace the use of the term "soc" with the term "device". Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00210-QCAHKSWPL_SILICONZ-1 Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 Signed-off-by: Vinith Kumar R <quic_vinithku@quicinc.com> Signed-off-by: Nithyanantham Paramasivam <nithyanantham.paramasivam@oss.qualcomm.com> Reviewed-by: Mahendran P <quic_mahep@quicinc.com> Link: https://patch.msgid.link/20250425012802.698914-2-nithyanantham.paramasivam@oss.qualcomm.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-05-16wifi: ath12k: add support to reap and process mon dest ringKang Yang
WCN7850 uses error dst ring as mon dest ring. Each time hardware receives a packet, will fill the payload into mon dest ring. The mon dest ring may store many MSDUs, which belonged to different MPDUs. Need to retrieve MSDUs based on the PPDU ID, only processing the MSDUs with same PPDU ID each time. The PPDU ID is used in cycles, the difference between the PPDU IDs of the two rings must be checked. If the status PPDU ID minus the dest PPDU ID is greater than 20000, it is considered a wrap-around case. After reaping the mon dest ring, should prepare packet and deliver it to mac80211 when status PPDU ID is equal to dest PPDU ID. Then start to process next PPDU if exists. But if dest PPDU ID > status PPDU ID, should hold on to mon dest ring processing. If it exceeds 16 consecutive times, status PPDU ID will be forcibly set to dest PPDU ID to avoid backpressure issue. Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1 Signed-off-by: Kang Yang <kang.yang@oss.qualcomm.com> Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Link: https://patch.msgid.link/20250421023444.1778-11-kang.yang@oss.qualcomm.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-05-16wifi: ath12k: use ath12k_buffer_addr in ath12k_dp_rx_link_desc_return()Kang Yang
Currently, ath12k_dp_rx_link_desc_return() takes struct hal_reo_dest_ring as its second input. This struct is converted to struct hal_wbm_release_ring and passed into ath12k_hal_rx_msdu_link_desc_set(), where it is converted again. This double conversion is both strange and inefficient. In ath12k_hal_rx_msdu_link_desc_set(), only buf_addr_info is actually used. To simplify the code and improve readability, directly passes buf_addr_info when calling ath12k_dp_rx_link_desc_return(). Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1 Signed-off-by: Kang Yang <kang.yang@oss.qualcomm.com> Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Link: https://patch.msgid.link/20250421023444.1778-10-kang.yang@oss.qualcomm.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2025-04-03wifi: ath12k: Add support to clear qdesc array in REO cacheBalamurugan S
Currently, the existing code lacks functionality to clear the qdesc array in the REO cache. As a result, any updates in the LUT are not reflected in the REO cache. To address this issue, add functionality to clear the qdesc array in the REO cache during a peer TID update. To do this, set the CLEAR_DESC_ARRAY field of WCSS_UMAC_REO_R0_QDESC_ADDR_READ and then reset it. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1 Signed-off-by: Balamurugan S <quic_bselvara@quicinc.com> Signed-off-by: Nithyanantham Paramasivam <quic_nithp@quicinc.com> Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Link: https://patch.msgid.link/20250402152529.1649402-3-quic_nithp@quicinc.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2024-11-21wifi: ath12k: Fix endianness issue in struct hal_tlv_64_hdrP Praneesh
struct hal_tlv_64_hdr has a 64-bit member that should be in little-endian format, but the current definition uses host byte order. Fix this by changing the definition and updating the corresponding helper functions used for the byte order conversion. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1 Signed-off-by: P Praneesh <quic_ppranees@quicinc.com> Acked-by: Kalle Valo <kvalo@kernel.org> Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com> Link: https://patch.msgid.link/20241119164516.756478-1-quic_ppranees@quicinc.com Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
2024-01-18wifi: ath12k: add support for BA1024Baochen Qiang
Currently the maximum block ACK window size supported is 256. This results in that, when connected to an AP which supports larger BA sizes like BA512 or BA1024, only BA256 is established, leading to a lower peak throughput. So add support for BA1024, this is done by allocating a larger REO queue and advertising IEEE80211_MAX_AMPDU_BUF_EHT support to MAC80211. 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> Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://msgid.link/20231129020414.56425-3-quic_bqiang@quicinc.com
2024-01-18wifi: ath12k: replace ENOTSUPP with EOPNOTSUPPKarthikeyan Periyasamy
ENOTSUPP is not a standard error code, don't use it. Replace with EOPNOTSUPP instead. No functional changes, compile tested only. Signed-off-by: Karthikeyan Periyasamy <quic_periyasa@quicinc.com> Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://msgid.link/20240117080431.2907471-2-quic_periyasa@quicinc.com
2023-11-30wifi: ath12k: Update Qualcomm Innovation Center, Inc. copyrightsJeff Johnson
Update the copyright for all ath12k files modified on behalf of Qualcomm Innovation Center, Inc. in 2023. Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/20231128-ath12kcopyrights-v1-1-be0b7408cbac@quicinc.com
2023-10-10wifi: ath12k: remove redundant memset() in ath12k_hal_reo_qdesc_setup()Dmitry Antipov
Since 'ath12k_dp_rx_peer_tid_setup()' is the only place where 'struct hal_rx_reo_queue' object is allocated with 'kzalloc()', call to 'memset()' in 'ath12k_hal_reo_qdesc_setup()' may be dropped. Compile tested only. Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/20231002182856.131254-1-dmantipov@yandex.ru
2023-01-18wifi: ath12k: hal_rx: Use memset_startat() for clearing queue descriptorsThiraviyam Mariyappan
In preparation for FORTIFY_SOURCE performing compile-time and run-time field bounds checking for memset(), avoid intentionally writing across neighboring fields. Use memset_startat() so memset() doesn't get confused about writing beyond the destination member that is intended to be the starting point of zeroing through the end of the struct and fixes the below clang warning. Warning: include/linux/fortify-string.h:314:4: warning: call to '__write_overflow_field' declared with 'warning' attribute: detected write beyond size of field (1st parameter); maybe use struct_group()? [-Wattribute-warning] Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0-03171-QCAHKSWPL_SILICONZ-1 Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Thiraviyam Mariyappan <quic_tmariyap@quicinc.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/20221221105529.19345-3-quic_tmariyap@quicinc.com
2022-11-29wifi: ath12k: driver for Qualcomm Wi-Fi 7 devicesKalle Valo
ath12k is a new mac80211 driver for Qualcomm Wi-Fi 7 devices, first supporting QCN9274 and WCN7850 PCI devices. QCN9274 supports both AP and station; WCN7850 supports only station mode. Monitor mode is not (yet) supported. Only PCI bus devices are supported. ath12k is forked from an earlier version of ath11k. It was simpler to have a "clean start" for the new generation and not try to share the code with ath11k. This makes maintenance easier and avoids major changes in ath11k, which would have significantly increased the risk of regressions in existing setups. ath12k uses le32 and cpu_to_le32() macros to handle endian conversions, instead of using the firmware byte swap feature utilized by ath11k. There is only one kernel module, named ath12k.ko. Currently ath12k only supports HE mode (IEEE 802.11ax) or older, but work is ongoing to add EHT mode (IEEE 802.11be) support. The size of the driver is ~41 kLOC and 45 files. To make the review easier, this initial version of ath12k does not support Device Tree, debugfs or any other extra features. Those will be added later, after ath12k is accepted to upstream. The driver is build tested by Intel's kernel test robot with both GCC and Clang. Sparse reports no warnings. The driver is mostly free of checkpatch warnings, albeit few of the warnings are omitted on purpose, list of them here: https://github.com/qca/qca-swiss-army-knife/blob/master/tools/scripts/ath12k/ath12k-check#L52 The driver has had multiple authors who are listed in alphabetical order below. Co-developed-by: Balamurugan Selvarajan <quic_bselvara@quicinc.com> Signed-off-by: Balamurugan Selvarajan <quic_bselvara@quicinc.com> Co-developed-by: Baochen Qiang <quic_bqiang@quicinc.com> Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com> Co-developed-by: Bhagavathi Perumal S <quic_bperumal@quicinc.com> Signed-off-by: Bhagavathi Perumal S <quic_bperumal@quicinc.com> Co-developed-by: Carl Huang <quic_cjhuang@quicinc.com> Signed-off-by: Carl Huang <quic_cjhuang@quicinc.com> Co-developed-by: Jeff Johnson <quic_jjohnson@quicinc.com> Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com> Co-developed-by: Karthikeyan Periyasamy <quic_periyasa@quicinc.com> Signed-off-by: Karthikeyan Periyasamy <quic_periyasa@quicinc.com> Co-developed-by: P Praneesh <quic_ppranees@quicinc.com> Signed-off-by: P Praneesh <quic_ppranees@quicinc.com> Co-developed-by: Pradeep Kumar Chitrapu <quic_pradeepc@quicinc.com> Signed-off-by: Pradeep Kumar Chitrapu <quic_pradeepc@quicinc.com> Co-developed-by: Ramya Gnanasekar <quic_rgnanase@quicinc.com> Signed-off-by: Ramya Gnanasekar <quic_rgnanase@quicinc.com> Co-developed-by: Sriram R <quic_srirrama@quicinc.com> Signed-off-by: Sriram R <quic_srirrama@quicinc.com> Co-developed-by: Vasanthakumar Thiagarajan <quic_vthiagar@quicinc.com> Signed-off-by: Vasanthakumar Thiagarajan <quic_vthiagar@quicinc.com> Co-developed-by: Wen Gong <quic_wgong@quicinc.com> Signed-off-by: Wen Gong <quic_wgong@quicinc.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>