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2025-03-19rqspinlock: Hardcode cond_acquire loops for arm64Kumar Kartikeya Dwivedi
Currently, for rqspinlock usage, the implementation of smp_cond_load_acquire (and thus, atomic_cond_read_acquire) are susceptible to stalls on arm64, because they do not guarantee that the conditional expression will be repeatedly invoked if the address being loaded from is not written to by other CPUs. When support for event-streams is absent (which unblocks stuck WFE-based loops every ~100us), we may end up being stuck forever. This causes a problem for us, as we need to repeatedly invoke the RES_CHECK_TIMEOUT in the spin loop to break out when the timeout expires. Let us import the smp_cond_load_acquire_timewait implementation Ankur is proposing in [0], and then fallback to it once it is merged. While we rely on the implementation to amortize the cost of sampling check_timeout for us, it will not happen when event stream support is unavailable. This is not the common case, and it would be difficult to fit our logic in the time_expr_ns >= time_limit_ns comparison, hence just let it be. [0]: https://lore.kernel.org/lkml/20250203214911.898276-1-ankur.a.arora@oracle.com Cc: Ankur Arora <ankur.a.arora@oracle.com> Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/r/20250316040541.108729-9-memxor@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-03-19rqspinlock: Add support for timeoutsKumar Kartikeya Dwivedi
Introduce policy macro RES_CHECK_TIMEOUT which can be used to detect when the timeout has expired for the slow path to return an error. It depends on being passed two variables initialized to 0: ts, ret. The 'ts' parameter is of type rqspinlock_timeout. This macro resolves to the (ret) expression so that it can be used in statements like smp_cond_load_acquire to break the waiting loop condition. The 'spin' member is used to amortize the cost of checking time by dispatching to the implementation every 64k iterations. The 'timeout_end' member is used to keep track of the timestamp that denotes the end of the waiting period. The 'ret' parameter denotes the status of the timeout, and can be checked in the slow path to detect timeouts after waiting loops. The 'duration' member is used to store the timeout duration for each waiting loop. The default timeout value defined in the header (RES_DEF_TIMEOUT) is 0.25 seconds. This macro will be used as a condition for waiting loops in the slow path. Since each waiting loop applies a fresh timeout using the same rqspinlock_timeout, we add a new RES_RESET_TIMEOUT as well to ensure the values can be easily reinitialized to the default state. Reviewed-by: Barret Rhoden <brho@google.com> Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/r/20250316040541.108729-8-memxor@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-03-19rqspinlock: Drop PV and virtualization supportKumar Kartikeya Dwivedi
Changes to rqspinlock in subsequent commits will be algorithmic modifications, which won't remain in agreement with the implementations of paravirt spin lock and virt_spin_lock support. These future changes include measures for terminating waiting loops in slow path after a certain point. While using a fair lock like qspinlock directly inside virtual machines leads to suboptimal performance under certain conditions, we cannot use the existing virtualization support before we make it resilient as well. Therefore, drop it for now. Note that we need to drop qspinlock_stat.h, as it's only relevant in case of CONFIG_PARAVIRT_SPINLOCKS=y, but we need to keep lock_events.h in the includes, which was indirectly pulled in before. Reviewed-by: Barret Rhoden <brho@google.com> Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/r/20250316040541.108729-7-memxor@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-03-19rqspinlock: Add rqspinlock.h headerKumar Kartikeya Dwivedi
This header contains the public declarations usable in the rest of the kernel for rqspinlock. Let's also type alias qspinlock to rqspinlock_t to ensure consistent use of the new lock type. We want to remove dependence on the qspinlock type in later patches as we need to provide a test-and-set fallback, hence begin abstracting away from now onwards. Reviewed-by: Barret Rhoden <brho@google.com> Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/r/20250316040541.108729-6-memxor@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-03-19locking: Copy out qspinlock.c to kernel/bpf/rqspinlock.cKumar Kartikeya Dwivedi
In preparation for introducing a new lock implementation, Resilient Queued Spin Lock, or rqspinlock, we first begin our modifications by using the existing qspinlock.c code as the base. Simply copy the code to a new file and rename functions and variables from 'queued' to 'resilient_queued'. Since we place the file in kernel/bpf, include needs to be relative. This helps each subsequent commit in clearly showing how and where the code is being changed. The only change after a literal copy in this commit is renaming the functions where necessary, and rename qnodes to rqnodes. Let's also use EXPORT_SYMBOL_GPL for rqspinlock slowpath. Reviewed-by: Barret Rhoden <brho@google.com> Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/r/20250316040541.108729-5-memxor@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-03-19locking: Allow obtaining result of arch_mcs_spin_lock_contendedKumar Kartikeya Dwivedi
To support upcoming changes that require inspecting the return value once the conditional waiting loop in arch_mcs_spin_lock_contended terminates, modify the macro to preserve the result of smp_cond_load_acquire. This enables checking the return value as needed, which will help disambiguate the MCS node’s locked state in future patches. Reviewed-by: Barret Rhoden <brho@google.com> Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/r/20250316040541.108729-4-memxor@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-03-19locking: Move common qspinlock helpers to a private headerKumar Kartikeya Dwivedi
Move qspinlock helper functions that encode, decode tail word, set and clear the pending and locked bits, and other miscellaneous definitions and macros to a private header. To this end, create a qspinlock.h header file in kernel/locking. Subsequent commits will introduce a modified qspinlock slow path function, thus moving shared code to a private header will help minimize unnecessary code duplication. Reviewed-by: Barret Rhoden <brho@google.com> Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/r/20250316040541.108729-3-memxor@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-03-19RISC-V: KVM: Teardown riscv specific bits after kvm_exitAtish Patra
During a module removal, kvm_exit invokes arch specific disable call which disables AIA. However, we invoke aia_exit before kvm_exit resulting in the following warning. KVM kernel module can't be inserted afterwards due to inconsistent state of IRQ. [25469.031389] percpu IRQ 31 still enabled on CPU0! [25469.031732] WARNING: CPU: 3 PID: 943 at kernel/irq/manage.c:2476 __free_percpu_irq+0xa2/0x150 [25469.031804] Modules linked in: kvm(-) [25469.031848] CPU: 3 UID: 0 PID: 943 Comm: rmmod Not tainted 6.14.0-rc5-06947-g91c763118f47-dirty #2 [25469.031905] Hardware name: riscv-virtio,qemu (DT) [25469.031928] epc : __free_percpu_irq+0xa2/0x150 [25469.031976] ra : __free_percpu_irq+0xa2/0x150 [25469.032197] epc : ffffffff8007db1e ra : ffffffff8007db1e sp : ff2000000088bd50 [25469.032241] gp : ffffffff8131cef8 tp : ff60000080b96400 t0 : ff2000000088baf8 [25469.032285] t1 : fffffffffffffffc t2 : 5249207570637265 s0 : ff2000000088bd90 [25469.032329] s1 : ff60000098b21080 a0 : 037d527a15eb4f00 a1 : 037d527a15eb4f00 [25469.032372] a2 : 0000000000000023 a3 : 0000000000000001 a4 : ffffffff8122dbf8 [25469.032410] a5 : 0000000000000fff a6 : 0000000000000000 a7 : ffffffff8122dc10 [25469.032448] s2 : ff60000080c22eb0 s3 : 0000000200000022 s4 : 000000000000001f [25469.032488] s5 : ff60000080c22e00 s6 : ffffffff80c351c0 s7 : 0000000000000000 [25469.032582] s8 : 0000000000000003 s9 : 000055556b7fb490 s10: 00007ffff0e12fa0 [25469.032621] s11: 00007ffff0e13e9a t3 : ffffffff81354ac7 t4 : ffffffff81354ac7 [25469.032664] t5 : ffffffff81354ac8 t6 : ffffffff81354ac7 [25469.032698] status: 0000000200000100 badaddr: ffffffff8007db1e cause: 0000000000000003 [25469.032738] [<ffffffff8007db1e>] __free_percpu_irq+0xa2/0x150 [25469.032797] [<ffffffff8007dbfc>] free_percpu_irq+0x30/0x5e [25469.032856] [<ffffffff013a57dc>] kvm_riscv_aia_exit+0x40/0x42 [kvm] [25469.033947] [<ffffffff013b4e82>] cleanup_module+0x10/0x32 [kvm] [25469.035300] [<ffffffff8009b150>] __riscv_sys_delete_module+0x18e/0x1fc [25469.035374] [<ffffffff8000c1ca>] syscall_handler+0x3a/0x46 [25469.035456] [<ffffffff809ec9a4>] do_trap_ecall_u+0x72/0x134 [25469.035536] [<ffffffff809f5e18>] handle_exception+0x148/0x156 Invoke aia_exit and other arch specific cleanup functions after kvm_exit so that disable gets a chance to be called first before exit. Fixes: 54e43320c2ba ("RISC-V: KVM: Initial skeletal support for AIA") Fixes: eded6754f398 ("riscv: KVM: add basic support for host vs guest profiling") Signed-off-by: Atish Patra <atishp@rivosinc.com> Reviewed-by: Anup Patel <anup@brainfault.org> Reviewed-by: Sean Christopherson <seanjc@google.com> Link: https://lore.kernel.org/r/20250317-kvm_exit_fix-v1-1-aa5240c5dbd2@rivosinc.com Signed-off-by: Anup Patel <anup@brainfault.org>
2025-03-19Merge tag 'ata-6.14-final' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux Pull ata fix from Niklas Cassel: - Fix a regression on ATI AHCI controllers, where certain Samsung drives fails to be detected on a warm boot when LPM is enabled. LPM on ATI AHCI works fine with other drives. Likewise, the Samsung drives works fine with LPM with other AHI controllers. Thus, just like the weirdo ATA_QUIRK_NO_NCQ_ON_ATI quirk, add a new ATA_QUIRK_NO_LPM_ON_ATI quirk to disable LPM only on ATI AHCI controllers. * tag 'ata-6.14-final' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux: ata: libata-core: Add ATA_QUIRK_NO_LPM_ON_ATI for certain Samsung SSDs
2025-03-19wifi: mt76: mt76x2u: add TP-Link TL-WDN6200 ID to device tableIcenowy Zheng
The TP-Link TL-WDN6200 "Driverless" version cards use a MT7612U chipset. Add the USB ID to mt76x2u driver. Signed-off-by: Icenowy Zheng <uwu@icenowy.me> Link: https://patch.msgid.link/20250317102235.1421726-1-uwu@icenowy.me Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt792x: re-register CHANCTX_STA_CSA only for the mt7921 seriesMing Yen Hsieh
CSA is currently not supported on mt7925, so CSA is only registered for the mt7921 series Cc: stable@vger.kernel.org Fixes: 8aa2f59260eb ("wifi: mt76: mt7921: introduce CSA support") Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com> Link: https://patch.msgid.link/20250313054044.2638837-1-mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: Update mt7996_tx to MLO supportLorenzo Bianconi
Rework mt7996_tx routine in order to support multi-link setup. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250312-b4-mt7996-mlo-p2-v1-21-015b3d6fd928@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: rework mt7996_ampdu_action to support MLOLorenzo Bianconi
Active/de-active TX/RX BA sessssion for each active links running mt7996_ampdu_action routine. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250312-b4-mt7996-mlo-p2-v1-20-015b3d6fd928@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: rework set/get_tsf callabcks to support MLOShayne Chen
This is a preliminary patch in order to enable MLO for MT7996 driver. Co-developed-by: Bo Jiao <Bo.Jiao@mediatek.com> Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com> Co-developed-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250312-b4-mt7996-mlo-p2-v1-19-015b3d6fd928@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: set vif default link_id adding/removing vif linksLorenzo Bianconi
This info will be consumed by subsequent patches (e.g. in set/get tsf routines). Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250312-b4-mt7996-mlo-p2-v1-18-015b3d6fd928@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: rework mt7996_mcu_beacon_inband_discov to support MLOShayne Chen
Rework mt7996_mcu_beacon_inband_discov routine in order to support multi-link setup. Co-developed-by: Bo Jiao <Bo.Jiao@mediatek.com> Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com> Co-developed-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250312-b4-mt7996-mlo-p2-v1-17-015b3d6fd928@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: rework mt7996_mcu_add_obss_spr to support MLOShayne Chen
Rework mt7996_mcu_add_obss_spr routine in order to support multi-link setup. Co-developed-by: Bo Jiao <Bo.Jiao@mediatek.com> Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com> Co-developed-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250312-b4-mt7996-mlo-p2-v1-16-015b3d6fd928@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: rework mt7996_net_fill_forward_path to support MLOLorenzo Bianconi
Rework mt7996_net_fill_forward_path routine in order to support multi-link setup. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250312-b4-mt7996-mlo-p2-v1-15-015b3d6fd928@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: rework mt7996_update_mu_group to support MLOLorenzo Bianconi
Rework mt7996_update_mu_group routine in order to support multi-link setup. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250312-b4-mt7996-mlo-p2-v1-14-015b3d6fd928@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: rework mt7996_mac_sta_poll to support MLOLorenzo Bianconi
Rework mt7996_mac_sta_poll routine in order to support multi-link setup. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250312-b4-mt7996-mlo-p2-v1-13-015b3d6fd928@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: rework mt7996_mac_sta_rc_work to support MLOLorenzo Bianconi
Rework mt7996_mac_sta_rc_work routine in order to support multi-link setup. Co-developed-by: Bo Jiao <Bo.Jiao@mediatek.com> Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com> Co-developed-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Co-developed-by: Shayne Chen <shayne.chen@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250312-b4-mt7996-mlo-p2-v1-12-015b3d6fd928@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: remove mt7996_mac_enable_rtscts()Shayne Chen
It is controlled by FW, also, driver should not directly write WTBL to prevent WTBL overwritten issues. Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20250312-b4-mt7996-mlo-p2-v1-11-015b3d6fd928@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: rework mt7996_sta_hw_queue_read to support MLOLorenzo Bianconi
Extend mt7996_sta_hw_queue_read to support multi-link setup. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250312-b4-mt7996-mlo-p2-v1-10-015b3d6fd928@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: rework mt7996_set_hw_key to support MLOShayne Chen
Modify mt7996_set_hw_key routine to work in a multi-link setup. This is a preliminary patch to enable MLO for MT7996 driver Co-developed-by: Bo Jiao <Bo.Jiao@mediatek.com> Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com> Co-developed-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250312-b4-mt7996-mlo-p2-v1-9-015b3d6fd928@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: Add mt7996_sta_link to mt7996_mcu_add_bss_info signatureLorenzo Bianconi
This is a preliminary patch to introduce MLO support for MT996 driver. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250312-b4-mt7996-mlo-p2-v1-8-015b3d6fd928@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: rework mt7996_sta_set_4addr and ↵Shayne Chen
mt7996_sta_set_decap_offload to support MLO Rework mt7996_sta_set_4addr and mt7996_sta_set_decap_offload routines in order to properly support multi-link. This is a preliminary patch to enable MLO for MT7996 driver. Co-developed-by: Bo Jiao <Bo.Jiao@mediatek.com> Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com> Co-developed-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250312-b4-mt7996-mlo-p2-v1-7-015b3d6fd928@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: rework mt7996_rx_get_wcid to support MLOShayne Chen
The wcid idx and band idx in the TXS are sometimes mismatched since the FW will select a transmission link according to a private algorithm. That is, the wcid idx in the TXS would be the one registered by the driver rather than the actual wcid idx used during transmission. However, the band idx in the TXS is the band select for transmission. Therefore, we should get the driver-registered wcid in order to notify the driver the packet has been acked; otherwise, the driver will be unable to match the transmitted packet and its TXS. This is a preliminary patch to enable MLO for MT7996 driver. Co-developed-by: Bo Jiao <Bo.Jiao@mediatek.com> Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com> Co-developed-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250312-b4-mt7996-mlo-p2-v1-6-015b3d6fd928@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: Rely on wcid_to_sta in mt7996_mac_add_txs_skb()Shayne Chen
This is a preliminary patch to enable MLO for MT7996 driver Co-developed-by: Bo Jiao <Bo.Jiao@mediatek.com> Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com> Co-developed-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250312-b4-mt7996-mlo-p2-v1-5-015b3d6fd928@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: rework mt7996_mac_write_txwi() for MLO supportShayne Chen
Update mt7996_mac_write_txwi routine and all the called subroutines to support MLO. This is a preliminary patch to enable MLO for MT7996 driver Co-developed-by: Bo Jiao <Bo.Jiao@mediatek.com> Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com> Co-developed-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250312-b4-mt7996-mlo-p2-v1-4-015b3d6fd928@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: Add mt7996_mcu_teardown_mld_sta rouineShayne Chen
mt7996_mcu_teardown_mld_sta is used to remove MLO configuration from the MCU. This is a preliminary patch to enable MLO for MT7996 driver Co-developed-by: Bo Jiao <Bo.Jiao@mediatek.com> Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com> Co-developed-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250312-b4-mt7996-mlo-p2-v1-3-015b3d6fd928@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: Add mt7996_mcu_sta_mld_setup_tlv() and ↵Shayne Chen
mt7996_mcu_sta_eht_mld_tlv() mt7996_mcu_sta_mld_setup_tlv is needed to push MLO configuration to the MCU. This is a preliminary patch to enable MLO for MT7996 driver Co-developed-by: Bo Jiao <Bo.Jiao@mediatek.com> Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com> Co-developed-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250312-b4-mt7996-mlo-p2-v1-2-015b3d6fd928@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: Update mt7996_mcu_add_rate_ctrl to MLOShayne Chen
Update mt7996_mcu_add_rate_ctrl routine and all the called subroutines to support MLO. This is a preliminary patch to enable MLO for MT7996 driver Co-developed-by: Bo Jiao <Bo.Jiao@mediatek.com> Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com> Co-developed-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250312-b4-mt7996-mlo-p2-v1-1-015b3d6fd928@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: Rely on mt7996_vif/sta_link in twt teardownLorenzo Bianconi
This is a preliminary patch to enable MLO for MT7996 driver Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250311-mt7996-mlo-v2-13-31df6972519b@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: Rely on mt7996_vif_link in mt7996_mcu_twt_agrt_update ↵Shayne Chen
signature This is a preliminary patch to enable MLO for MT7996 driver Co-developed-by: Bo Jiao <Bo.Jiao@mediatek.com> Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com> Co-developed-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250311-mt7996-mlo-v2-12-31df6972519b@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: Update mt7996_mcu_add_sta to MLO supportShayne Chen
Update mt7996_mcu_add_sta routine and all the called subroutines to support MLO. This is a preliminary patch to enable MLO for MT7996 driver. Co-developed-by: Bo Jiao <Bo.Jiao@mediatek.com> Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com> Co-developed-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250311-mt7996-mlo-v2-11-31df6972519b@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: Check link_conf pointer in mt76_connac_mcu_sta_basic_tlv()Shayne Chen
This is a preliminary patch to introduce MLO support for MT7996 driver. Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://patch.msgid.link/20250311-mt7996-mlo-v2-10-31df6972519b@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: Support MLO in mt7996_mac_sta_event()Lorenzo Bianconi
Similar to mt7996_mac_sta_add() adn mt7996_mac_sta_remove(), update mt7996_mac_sta_event routine to take into account MLO support. Please note mcu routines does not support MLO yet. Co-developed-by: Bo Jiao <Bo.Jiao@mediatek.com> Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com> Co-developed-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Co-developed-by: Shayne Chen <shayne.chen@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250311-mt7996-mlo-v2-9-31df6972519b@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: Add mt7996_mac_sta_change_links callbackShayne Chen
Intrdouce mt7996_mac_sta_change_links routine to set change_sta_links required by mac80211. This is a preliminary patch to introduce MLO support for MT7996 driver. Co-developed-by: Bo Jiao <Bo.Jiao@mediatek.com> Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com> Co-developed-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250311-mt7996-mlo-v2-8-31df6972519b@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: Rely on mt7996_sta_link in sta_add/sta_remove callbacksLorenzo Bianconi
Generalize mt7996_mac_sta_add() and mt7996_mac_sta_remove() routines to deal with mt7996_sta_link structure. This is a preliminary patch to introduce MLO support for MT7996 driver. Co-developed-by: Bo Jiao <Bo.Jiao@mediatek.com> Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com> Co-developed-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Co-developed-by: Shayne Chen <shayne.chen@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250311-mt7996-mlo-v2-7-31df6972519b@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: Add mt7996_sta_state routineLorenzo Bianconi
Introduce mt7996_sta_state routine in order to initialize wcid structure in mt7996 codebase. This is a preliminary patch to enable MLO support in MT7996 driver. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250311-mt7996-mlo-v2-6-31df6972519b@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: Add link_info_changed callbackLorenzo Bianconi
Convert bss_info_changed mac80211 callback in link_info_changed one. This is a preliminary patch to enable MLO support in MT7996 driver. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250311-mt7996-mlo-v2-5-31df6972519b@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: Add vif_cfg_changed callbackLorenzo Bianconi
Introduce vif_cfg_changed mac80211 callback as preliminary patch to enable MLO support in MT7996 driver. Co-developed-by: Bo Jiao <Bo.Jiao@mediatek.com> Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com> Co-developed-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Co-developed-by: Shayne Chen <shayne.chen@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250311-mt7996-mlo-v2-4-31df6972519b@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: Add mt7996_sta_link struct in mt7996_vif_linkLorenzo Bianconi
Introduce mt7996_sta_link field in mt7996_vif_link structure instead of mt7996_sta. This is a preliminary patch to support MLO in MT7996 driver. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250311-mt7996-mlo-v2-3-31df6972519b@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: Introduce mt7996_sta_link containerLorenzo Bianconi
Similar to mt7996_vif_link, add mt7996_sta_link structure as driver representation for sta links. This is a preliminary patch to introduce MLO support for MT7996 driver. Co-developed-by: Bo Jiao <Bo.Jiao@mediatek.com> Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com> Co-developed-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Co-developed-by: Shayne Chen <shayne.chen@mediatek.com> Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250311-mt7996-mlo-v2-2-31df6972519b@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: Add change_vif_links stubLorenzo Bianconi
change_vif_links callback is required by mac80211. This is a preliminary patch to introduce MLO support for MT7996 driver. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250311-mt7996-mlo-v2-1-31df6972519b@kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: scan: fix setting tx_info fieldsFelix Fietkau
ieee80211_tx_prepare_skb initializes the skb cb, so fields need to be set afterwards. Link: https://patch.msgid.link/20250311103646.43346-8-nbd@nbd.name Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: implement driver specific get_txpower functionFelix Fietkau
Fixes reporting tx power for vifs that don't have a channel context assigned. Report the tx power of a phy that is covered by the vif's radio mask. Link: https://patch.msgid.link/20250311103646.43346-7-nbd@nbd.name Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: only mark tx-status-failed frames as ACKed on mt76x0/2Felix Fietkau
The interrupt status polling is unreliable, which can cause status events to get lost. On all newer chips, txs-timeout is an indication that the packet was either never sent, or never acked. Fixes issues with inactivity polling. Link: https://patch.msgid.link/20250311103646.43346-6-nbd@nbd.name Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: mt7996: use the correct vif link for scanning/rocFelix Fietkau
Use the newly added offchannel_link pointer in vif data Link: https://patch.msgid.link/20250311103646.43346-5-nbd@nbd.name Signed-off-by: Felix Fietkau <nbd@nbd.name>
2025-03-19wifi: mt76: scan: set vif offchannel link for scanning/rocFelix Fietkau
The driver needs to know what vif link to use Link: https://patch.msgid.link/20250311103646.43346-4-nbd@nbd.name Signed-off-by: Felix Fietkau <nbd@nbd.name>
generated by cgit (git 2.34.1) at 2025-09-24 14:16:10 +0000