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path: root/drivers/net/wireless/intel/iwlwifi/mld/debugfs.c
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2026-05-26wifi: iwlwifi: mld: add link and link station FW IDs to debugfsJohannes Berg
Add the link and link station FW IDs to debugfs to aid debug and testing, since assignments can't be known ahead of time, especially with ID randomisation turned on. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Link: https://patch.msgid.link/20260515150751.7224fab5fe8d.Ic2fd82f5f20945aa070ac9e38882fcff2172a4d8@changeid Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
2026-05-26wifi: iwlwifi: mld: rename LINK_DEBUGFS_WRITE_FILE_OPSJohannes Berg
These are with wiphy mutex held, so rename the macro to LINK_DEBUGFS_WIPHY_WRITE_FILE_OPS indicating that. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Link: https://patch.msgid.link/20260515150751.5bff36ea7dd0.I62b01f83b622f281257fb842d9cc00b28dc2f5e1@changeid Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
2026-05-26wifi: iwlwifi: mld: give link STA debugfs files a namespaceJohannes Berg
The generated data structures and function names used are just the debugfs filename, which is a shared namespace and could lead to confusion. Prefix these with "link_sta_" to disambiguate. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Link: https://patch.msgid.link/20260513084215.4421f114bb33.I0de78b6b184935bc2a3d77fa649888da31b5a0fb@changeid Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
2026-05-26wifi: iwlwifi: mld: stop supporting rate_n_flags version 2Miri Korenblit
Now as the oldest fw we support is core 101, and it supports only version 3, remove version 2. Reviewed-by: Johannes Berg <johannes.berg@intel.com> Link: https://patch.msgid.link/20260512082114.39e460bc8235.I4cd02612a68a3f183d51f428569448670bd19d9b@changeid Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
2026-02-12Merge tag 'mm-nonmm-stable-2026-02-12-10-48' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull non-MM updates from Andrew Morton: - "ocfs2: give ocfs2 the ability to reclaim suballocator free bg" saves disk space by teaching ocfs2 to reclaim suballocator block group space (Heming Zhao) - "Add ARRAY_END(), and use it to fix off-by-one bugs" adds the ARRAY_END() macro and uses it in various places (Alejandro Colomar) - "vmcoreinfo: support VMCOREINFO_BYTES larger than PAGE_SIZE" makes the vmcore code future-safe, if VMCOREINFO_BYTES ever exceeds the page size (Pnina Feder) - "kallsyms: Prevent invalid access when showing module buildid" cleans up kallsyms code related to module buildid and fixes an invalid access crash when printing backtraces (Petr Mladek) - "Address page fault in ima_restore_measurement_list()" fixes a kexec-related crash that can occur when booting the second-stage kernel on x86 (Harshit Mogalapalli) - "kho: ABI headers and Documentation updates" updates the kexec handover ABI documentation (Mike Rapoport) - "Align atomic storage" adds the __aligned attribute to atomic_t and atomic64_t definitions to get natural alignment of both types on csky, m68k, microblaze, nios2, openrisc and sh (Finn Thain) - "kho: clean up page initialization logic" simplifies the page initialization logic in kho_restore_page() (Pratyush Yadav) - "Unload linux/kernel.h" moves several things out of kernel.h and into more appropriate places (Yury Norov) - "don't abuse task_struct.group_leader" removes the usage of ->group_leader when it is "obviously unnecessary" (Oleg Nesterov) - "list private v2 & luo flb" adds some infrastructure improvements to the live update orchestrator (Pasha Tatashin) * tag 'mm-nonmm-stable-2026-02-12-10-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (107 commits) watchdog/hardlockup: simplify perf event probe and remove per-cpu dependency procfs: fix missing RCU protection when reading real_parent in do_task_stat() watchdog/softlockup: fix sample ring index wrap in need_counting_irqs() kcsan, compiler_types: avoid duplicate type issues in BPF Type Format kho: fix doc for kho_restore_pages() tests/liveupdate: add in-kernel liveupdate test liveupdate: luo_flb: introduce File-Lifecycle-Bound global state liveupdate: luo_file: Use private list list: add kunit test for private list primitives list: add primitives for private list manipulations delayacct: fix uapi timespec64 definition panic: add panic_force_cpu= parameter to redirect panic to a specific CPU netclassid: use thread_group_leader(p) in update_classid_task() RDMA/umem: don't abuse current->group_leader drm/pan*: don't abuse current->group_leader drm/amd: kill the outdated "Only the pthreads threading model is supported" checks drm/amdgpu: don't abuse current->group_leader android/binder: use same_thread_group(proc->tsk, current) in binder_mmap() android/binder: don't abuse current->group_leader kho: skip memoryless NUMA nodes when reserving scratch areas ...
2026-01-21wifi: iwlwifi: split bios_value_u32 to separate the headerEmmanuel Grumbach
This header will be reused in other firmware API structures Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20260111193638.2f191a5f33fe.I7797134967b980bbda9ba29daa360e50a2196d7d@changeid
2026-01-20kernel.h: drop hex.h and update all hex.h usersRandy Dunlap
Remove <linux/hex.h> from <linux/kernel.h> and update all users/callers of hex.h interfaces to directly #include <linux/hex.h> as part of the process of putting kernel.h on a diet. Removing hex.h from kernel.h means that 36K C source files don't have to pay the price of parsing hex.h for the roughly 120 C source files that need it. This change has been build-tested with allmodconfig on most ARCHes. Also, all users/callers of <linux/hex.h> in the entire source tree have been updated if needed (if not already #included). Link: https://lkml.kernel.org/r/20251215005206.2362276-1-rdunlap@infradead.org Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Yury Norov (NVIDIA) <yury.norov@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-09-09wifi: iwlwifi: replace SUPPRESS_CMD_ERROR_ONCE status bit with a booleanRotem Kerem
Convert STATUS_SUPPRESS_CMD_ERROR_ONCE from a status bit to a simple bool field in struct iwl_trans, as atomicity is not needed. Signed-off-by: Rotem Kerem <rotem.kerem@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20250909061931.b33366c11a45.I75aac05afd8c4d8ef217d03327c1a027d6e7667e@changeid
2025-09-07wifi: iwlwifi: Fix dentry reference leak in iwl_mld_add_link_debugfsMiaoqian Lin
The debugfs_lookup() function increases the dentry reference count. Add missing dput() call to release the reference when the "iwlmld" directory already exists. Fixes: d1e879ec600f ("wifi: iwlwifi: add iwlmld sub-driver") Cc: stable@vger.kernel.org Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Link: https://patch.msgid.link/20250902040955.2362472-1-linmq006@gmail.com Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
2025-07-11wifi: iwlwifi: add suppress_cmd_error_once() APIRotem Kerem
Add iwl_trans_suppress_cmd_error_once() function to be called by the op modes instead of directly checking the trans status bits. This hides the trans internal implementation details from callers. Signed-off-by: Rotem Kerem <rotem.kerem@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20250710212632.e061ae241fd3.Ie2043c4e237196ebcfe195006d3d76371de48a55@changeid
2025-06-25wifi: iwlwifi: mld: add timer host wakeup debugfsJohannes Berg
Add a debugfs file to be able to control how long, at most, the device will sleep before waking up the host. This will be useful to test certain "assert during suspend" scenarios for the previous change. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20250611222325.9f2a39cae1e1.Ie0003f21286fea50b507d0debe06332b030cd4cb@changeid
2025-05-15Merge tag 'iwlwifi-next-2025-05-15' of ↵Johannes Berg
https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next Miri Korenblit says: ==================== iwlwifi features, notably a rework of the transport configuration ==================== Link: https://patch.msgid.link/MW5PR11MB5810DD2655DE461E98A618DDA390A@MW5PR11MB5810.namprd11.prod.outlook.com/ Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-05-07wifi: iwlwifi: handle v3 ratesJohannes Berg
For UHR, a version 3 of the rate API is being added, which increases the number of bits used for MCSes by shifting the NSS bit up. Handle that. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Link: https://patch.msgid.link/20250505215513.84cde65a603f.Ic3119ef77cbc6461abd2a6bda104c0d236adcc8d@changeid Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
2025-05-07wifi: iwlwifi: mld: add debugfs for using ptp clock time for monitor interfaceAvraham Stern
Add a debugfs option to use the ptp clock time for Rx device timestamps on a monitor interface. This can be useful for e.g. synchronizing multiple NICs or reporting the timestamp in the system clock instead of the GP2. Signed-off-by: Avraham Stern <avraham.stern@intel.com> Link: https://patch.msgid.link/20250505215513.fffe6718fbca.I75f034005851a2d0c8ba5b015b9fdcad8a7c550d@changeid Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
2025-04-23wifi: iwlwifi: mld: only create debugfs symlink if it does not existBenjamin Berg
When mac80211 switches between non-MLO and MLO it will recreate the debugfs directories. This results in the add_if_debugfs handler being called multiple times. As the convenience symlink is created in the mld debugfs directory and not the vif, it will not be removed by mac80211 when this happens and still exists. Add a check and only create the convenience symlink if we have not yet done so. Fixes: d1e879ec600f ("wifi: iwlwifi: add iwlmld sub-driver") Signed-off-by: Benjamin Berg <benjamin.berg@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20250420095642.2490696f032a.I74319c7cf18f7e16a3d331cb96e38504b9fbab66@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-04-02wifi: iwlwifi: mld: silence uninitialized variable warningDan Carpenter
The "resp_len" isn't initialized if iwl_dhc_resp_data() fails. Fixes: b611cf6b57a8 ("wifi: iwlwifi: mld: add support for DHC_TOOLS_UMAC_GET_TAS_STATUS command") Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Acked-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/add9c9e2-3b44-4e0a-a4aa-7326f6425baf@stanley.mountain [fix typo in commit message] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-03-18wifi: iwlwifi: mld: add debugfs to control MLO scanMiri Korenblit
Add a debugfs entry to start/stop an MLO scan. This is required for testing. Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Reviewed-by: Benjamin Berg <benjamin.berg@intel.com> Link: https://patch.msgid.link/20250313002008.1a1c2d285336.I5163ceb97ac797e3cf00badf79b9aa9355d7327d@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-03-18wifi: iwlwifi: mld: add support for DHC_TOOLS_UMAC_GET_TAS_STATUS commandPagadala Yesu Anjaneyulu
Add debugfs file in mld to retrieve TAS status per radio, TAS block list, current mcc, OEM name and OEM allowed list. This will add ability to get TAS status to user application via debugfs and required for debugging. Add the required API definitions and some debug host command utils. Signed-off-by: Pagadala Yesu Anjaneyulu <pagadala.yesu.anjaneyulu@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20250313002008.66524c6ea198.I1625135284fc075148a55dd9ac629e94ca881fe4@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-03-18wifi: iwlwifi: mld: Ensure wiphy lock is held during debugfs read operationsPagadala Yesu Anjaneyulu
The WIPHY_DEBUGFS_READ_WRITE_FILE_OPS_MLD macro is intended to call read/write handlers with the wiphy lock held. However, the current implementation uses the MLD_DEBUGFS_READ_WRAPPER macro, which does not hold the wiphy lock during read operations. This fix updates the WIPHY_DEBUGFS_READ_WRITE_FILE_OPS_MLD macro to use the WIPHY_DEBUGFS_READ_WRAPPER_MLD macro instead, ensuring that the wiphy lock is held during both read and write operations. Signed-off-by: Pagadala Yesu Anjaneyulu <pagadala.yesu.anjaneyulu@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20250313002008.2001d2335e9d.I607a8bd12efc6d1190cef1fca44279dbdd2756ea@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-03-12wifi: iwlwifi: Fix uninitialized variable with __free()Dan Carpenter
Pointers declared with the __free(kfree) attribute need to be initialized because they will be passed to kfree() on every return path. There are two return statement before the "cmd" pointer is initialized so this leads to an uninitialized variable bug. Fixes: d1e879ec600f ("wifi: iwlwifi: add iwlmld sub-driver") Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Acked-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/f7c17a7f-f173-43bf-bc39-316b8adde349@stanley.mountain Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-03-05wifi: iwlwifi: add iwlmld sub-driverMiri Korenblit
iwlwifi is the driver of all Intel wifi devices since 2008. Since then, the hardware has changed a lot, but the firmware API has changed even more. The need to keep one driver that supports all those different APIs led us to introduce a new architecture circa 2012 which allowed us to keep the same interface to the hardware (DMAs, Tx queues, etc...) with a new layer to implement the mid-layer between mac80211 and the firmware. The first component is called the 'transport' and the latter is called 'operation_mode' a.k.a op_mode. In 2013 we took advantage of the new architecture to introduce iwlmvm which allowed us to implement the, then, new firmware API. This op_mode supports 7260 and up, those devices supports support at least VHT. Since then, wifi evolved and so did the firmware. It became much bigger and took a lot of functionality from the driver. It became increasingly hard to keep the same op_mode for the newest devices and we experienced frequent regressions on older devices. In order to avoid those regressions and keep the code maintainable, we decided it was about time to start a new op_mode. iwlmld is a new op_mode that supports BE200 or newer if the firmware being used is 97.ucode or newer. If the user has an older devices or BE200 with .96.ucode, iwlmvm will be loaded. Of course, this op_mode selection is seamless. All the features supported in iwlmvm are supported in iwlmld besides a few seldom used use cases: injection and Hotspot 2.0. Those are under work. A few points about the implementation: * iwlmld doesn't have any mutexes, it relies on the wiphy_lock * iwlmld is more "resource oriented": stations, links and interfaces are allocated and freed only after all the relevant flows are completed. * Firmware notifications' sizes are validated in a more structured way. We would love to see this new op_mode merged in 6.15. The firmware for this new driver (.97.ucode) is not yet publicly available but it'll be sent very soon. People eager to get an early version of this firmware can contact Emmanuel at: emmanuel.grumbach@intel.com I've listed the people who directly contributed code, but many others from various teams have contributed in other ways. Co-developed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Co-developed-by: Avraham Stern <avraham.stern@intel.com> Signed-off-by: Avraham Stern <avraham.stern@intel.com> Co-developed-by: Daniel Gabay <daniel.gabay@intel.com> Signed-off-by: Daniel Gabay <daniel.gabay@intel.com> Co-developed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Co-developed-by: Anjaneyulu <pagadala.yesu.anjaneyulu@intel.com> Signed-off-by: Anjaneyulu <pagadala.yesu.anjaneyulu@intel.com> Co-developed-by: Yedidya Benshimol <yedidya.ben.shimol@intel.com> Signed-off-by: Yedidya Benshimol <yedidya.ben.shimol@intel.com> Co-developed-by: Benjamin Berg <benjamin.berg@intel.com> Signed-off-by: Benjamin Berg <benjamin.berg@intel.com> Co-developed-by: Shaul Triebitz <shaul.triebitz@intel.com> Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://lore.kernel.org/linux-wireless/20250216094321.537988-1-miriam.rachel.korenblit@intel.com/ [fix Kconfig, fix api/phy.h includes, SPDX tag and coding style issues, duplicated includes per 0-day robot] Signed-off-by: Johannes Berg <johannes.berg@intel.com>