From: Kalle Valo <quic_kvalo@xxxxxxxxxxx> 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@xxxxxxxxxxx> Signed-off-by: Balamurugan Selvarajan <quic_bselvara@xxxxxxxxxxx> Co-developed-by: Baochen Qiang <quic_bqiang@xxxxxxxxxxx> Signed-off-by: Baochen Qiang <quic_bqiang@xxxxxxxxxxx> Co-developed-by: Bhagavathi Perumal S <quic_bperumal@xxxxxxxxxxx> Signed-off-by: Bhagavathi Perumal S <quic_bperumal@xxxxxxxxxxx> Co-developed-by: Carl Huang <quic_cjhuang@xxxxxxxxxxx> Signed-off-by: Carl Huang <quic_cjhuang@xxxxxxxxxxx> Co-developed-by: Jeff Johnson <quic_jjohnson@xxxxxxxxxxx> Signed-off-by: Jeff Johnson <quic_jjohnson@xxxxxxxxxxx> Co-developed-by: Karthikeyan Periyasamy <quic_periyasa@xxxxxxxxxxx> Signed-off-by: Karthikeyan Periyasamy <quic_periyasa@xxxxxxxxxxx> Co-developed-by: P Praneesh <quic_ppranees@xxxxxxxxxxx> Signed-off-by: P Praneesh <quic_ppranees@xxxxxxxxxxx> Co-developed-by: Pradeep Kumar Chitrapu <quic_pradeepc@xxxxxxxxxxx> Signed-off-by: Pradeep Kumar Chitrapu <quic_pradeepc@xxxxxxxxxxx> Co-developed-by: Ramya Gnanasekar <quic_rgnanase@xxxxxxxxxxx> Signed-off-by: Ramya Gnanasekar <quic_rgnanase@xxxxxxxxxxx> Co-developed-by: Sriram R <quic_srirrama@xxxxxxxxxxx> Signed-off-by: Sriram R <quic_srirrama@xxxxxxxxxxx> Co-developed-by: Vasanthakumar Thiagarajan <quic_vthiagar@xxxxxxxxxxx> Signed-off-by: Vasanthakumar Thiagarajan <quic_vthiagar@xxxxxxxxxxx> Co-developed-by: Wen Gong <quic_wgong@xxxxxxxxxxx> Signed-off-by: Wen Gong <quic_wgong@xxxxxxxxxxx> Signed-off-by: Kalle Valo <quic_kvalo@xxxxxxxxxxx> --------------[cut]-------------------[cut]----------------- I have split the driver into multiple patches for easier review, but the final version will be one big commit. For easier review I have split the driver into multiple patches (one file per patch). But in the final version, which will be commited to git, all these patches will be folded into one big patch. So in the git archive the full driver be in a single commit to avoid any bisect issues etc. This version is based on commit 313fb8aacbba1eae831065d7cb5c68cb97fcace6 from ath12k-bringup branch on my ath.git tree: https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git/log/?h=ath12k-bringup The patchset applies on top of wireless-next commit: bafe9528b792f4a442aa1ea2b0297cd53a0351ab The firmware images are not yet available but they will be soon, the plan is to publish them before v2 is submitted. Please review and comment. Kalle
