- Mar 25, 2025
-
-
Jeff Johnson authored
Signed-off-by:
Jeff Johnson <jeff.johnson@oss.qualcomm.com>
-
Jeff Johnson authored
-
Jeff Johnson authored
-
Balamurugan S authored
Currently only PCI devices are supported in Ath12k driver. Refactor Ath12k module_init and module_exit to include Ath12k AHB support. Add Ath12k AHB support in Kconfig with dependency on Remoteproc driver. Ath12k AHB support relies on remoteproc driver for firmware download, power up/down etc. Tested-on: IPQ5332 hw1.0 AHB WLAN.WBE.1.3.1-00130-QCAHKSWPL_SILICONZ-1 Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00210-QCAHKSWPL_SILICONZ-1 Signed-off-by:
Balamurugan S <quic_bselvara@quicinc.com> Co-developed-by:
P Praneesh <quic_ppranees@quicinc.com> Signed-off-by:
P Praneesh <quic_ppranees@quicinc.com> Reviewed-by:
Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Signed-off-by:
Raj Kumar Bhagat <quic_rajkbhag@quicinc.com> Link: https://patch.msgid.link/20250321-ath12k-ahb-v12-13-bb389ed76ae5@quicinc.com Signed-off-by:
Jeff Johnson <jeff.johnson@oss.qualcomm.com>
-
Sowmiya Sree Elavalagan authored
Set the stop bit in SMEM to power down the userPD. Wait for stop-ack IRQ to indicate power down completion. Release the userPD firmware using its peripheral ID. Tested-on: IPQ5332 hw1.0 AHB WLAN.WBE.1.3.1-00130-QCAHKSWPL_SILICONZ-1 Signed-off-by:
Sowmiya Sree Elavalagan <quic_ssreeela@quicinc.com> Reviewed-by:
Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Signed-off-by:
Raj Kumar Bhagat <quic_rajkbhag@quicinc.com> Link: https://patch.msgid.link/20250321-ath12k-ahb-v12-12-bb389ed76ae5@quicinc.com Signed-off-by:
Jeff Johnson <jeff.johnson@oss.qualcomm.com>
-
Sowmiya Sree Elavalagan authored
UserPD firmware image is loaded and booted by ath12k driver. Get the userPD memory region from DTS and load the firmware for userPD from pre-defined path into io-remapped address of this region. Authenticate this image using pasid which is a peripheral ID. Set the spawn bit to instruct Q6 to spawn userPD thread. Wait for userPD to spawn which is indicated by spawn interrupt. Ready interrupt is triggered once the userPD is powered up completely. Tested-on: IPQ5332 hw1.0 AHB WLAN.WBE.1.3.1-00130-QCAHKSWPL_SILICONZ-1 Signed-off-by:
Sowmiya Sree Elavalagan <quic_ssreeela@quicinc.com> Reviewed-by:
Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Signed-off-by:
Raj Kumar Bhagat <quic_rajkbhag@quicinc.com> Link: https://patch.msgid.link/20250321-ath12k-ahb-v12-11-bb389ed76ae5@quicinc.com Signed-off-by:
Jeff Johnson <jeff.johnson@oss.qualcomm.com>
-
Sowmiya Sree Elavalagan authored
Q6 and ath12k driver communicates using SMEM and IRQs. Spawn interrupt is triggered once the userPD thread is spawned. Ready interrupts denotes userPD is completely powered up and ready. Stop-ack is to acknowledge the ath12k driver that userPD is stopped. Ath12k driver needs to set spawn bit in SMEM to instruct Q6 to spawn a userPD. Similarly stop bit is set when userPD needs to be stopped. Tested-on: IPQ5332 hw1.0 AHB WLAN.WBE.1.3.1-00130-QCAHKSWPL_SILICONZ-1 Signed-off-by:
Sowmiya Sree Elavalagan <quic_ssreeela@quicinc.com> Reviewed-by:
Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Signed-off-by:
Raj Kumar Bhagat <quic_rajkbhag@quicinc.com> Link: https://patch.msgid.link/20250321-ath12k-ahb-v12-10-bb389ed76ae5@quicinc.com Signed-off-by:
Jeff Johnson <jeff.johnson@oss.qualcomm.com>
-
Sowmiya Sree Elavalagan authored
Q6 processor acts as rootPD, other hardware like IPQ5332 which are attached to Q6 act as userPDs. WCSS driver handles loading and booting of rootPD, while the ath12k driver boots the userPD. Get the rproc handle from the DTS entry and boot the rootPD if it is not already powered on. Register to the rproc notifier to monitor the rproc state, this allows ath12k driver to know power up/down sequence of the rootPD. Power up the rootPD and wait for a power-up notification from the notifier callback before powering up the userPDs. Tested-on: IPQ5332 hw1.0 AHB WLAN.WBE.1.3.1-00130-QCAHKSWPL_SILICONZ-1 Signed-off-by:
Sowmiya Sree Elavalagan <quic_ssreeela@quicinc.com> Reviewed-by:
Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Co-developed-by:
Raj Kumar Bhagat <quic_rajkbhag@quicinc.com> Signed-off-by:
Raj Kumar Bhagat <quic_rajkbhag@quicinc.com> Link: https://patch.msgid.link/20250321-ath12k-ahb-v12-9-bb389ed76ae5@quicinc.com Signed-off-by:
Jeff Johnson <jeff.johnson@oss.qualcomm.com>
-
Balamurugan S authored
Add Initial Ath12k AHB driver support for IPQ5332. IPQ5332 is AHB based IEEE802.11be 2 GHz 2x2 WiFi device. Tested-on: IPQ5332 hw1.0 AHB WLAN.WBE.1.3.1-00130-QCAHKSWPL_SILICONZ-1 Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00210-QCAHKSWPL_SILICONZ-1 Signed-off-by:
Balamurugan S <quic_bselvara@quicinc.com> Co-developed-by:
P Praneesh <quic_ppranees@quicinc.com> Signed-off-by:
P Praneesh <quic_ppranees@quicinc.com> Co-developed-by:
Raj Kumar Bhagat <quic_rajkbhag@quicinc.com> Signed-off-by:
Raj Kumar Bhagat <quic_rajkbhag@quicinc.com> Reviewed-by:
Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Link: https://patch.msgid.link/20250321-ath12k-ahb-v12-8-bb389ed76ae5@quicinc.com Signed-off-by:
Jeff Johnson <jeff.johnson@oss.qualcomm.com>
-
Raj Kumar Bhagat authored
IPQ5332 firmware supports only fixed QMI firmware memory. Hence, add support to read reserved fixed memory region from device-tree and provide the reserved memory segments for firmware to use during QMI firmware memory request. Note that the ability to set the fixed memory will be introduced in a subsequent patch. Currently, the flag remains unset by default, ensuring that existing chipsets are unaffected. Tested-on: IPQ5332 hw1.0 AHB WLAN.WBE.1.3.1-00130-QCAHKSWPL_SILICONZ-1 Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00210-QCAHKSWPL_SILICONZ-1 Reviewed-by:
Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Signed-off-by:
Raj Kumar Bhagat <quic_rajkbhag@quicinc.com> Link: https://patch.msgid.link/20250321-ath12k-ahb-v12-7-bb389ed76ae5@quicinc.com Signed-off-by:
Jeff Johnson <jeff.johnson@oss.qualcomm.com>
-
Balamurugan S authored
For IPQ5332 CE register space is moved out of WCSS region and the space is not contiguous. Hence, add hardware params (ce_ie_addr & ce_remap) for IPQ5332. These parameters would be used by Ath12k AHB driver (in subsequent patches) to remap the CE registers to a new space for accessing them. Tested-on: IPQ5332 hw1.0 AHB WLAN.WBE.1.3.1-00130-QCAHKSWPL_SILICONZ-1 Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00210-QCAHKSWPL_SILICONZ-1 Signed-off-by:
Balamurugan S <quic_bselvara@quicinc.com> Co-developed-by:
P Praneesh <quic_ppranees@quicinc.com> Signed-off-by:
P Praneesh <quic_ppranees@quicinc.com> Reviewed-by:
Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Signed-off-by:
Raj Kumar Bhagat <quic_rajkbhag@quicinc.com> Link: https://patch.msgid.link/20250321-ath12k-ahb-v12-6-bb389ed76ae5@quicinc.com Signed-off-by:
Jeff Johnson <jeff.johnson@oss.qualcomm.com>
-
Balamurugan S authored
Current ath12k devices, QCN9274 and WCN7850, supports m3.bin firmware download through ath12k driver. The new ath12k AHB based device IPQ5332 supports m3 firmware download through remoteproc driver. Hence, add new parameter (fw.m3_loader) in ath12k_hw_params to avoid m3 firmware download in IPQ5332. Tested-on: IPQ5332 hw1.0 AHB WLAN.WBE.1.3.1-00130-QCAHKSWPL_SILICONZ-1 Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00210-QCAHKSWPL_SILICONZ-1 Signed-off-by:
Balamurugan S <quic_bselvara@quicinc.com> Co-developed-by:
P Praneesh <quic_ppranees@quicinc.com> Signed-off-by:
P Praneesh <quic_ppranees@quicinc.com> Reviewed-by:
Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Signed-off-by:
Raj Kumar Bhagat <quic_rajkbhag@quicinc.com> Link: https://patch.msgid.link/20250321-ath12k-ahb-v12-5-bb389ed76ae5@quicinc.com Signed-off-by:
Jeff Johnson <jeff.johnson@oss.qualcomm.com>
-
Balamurugan S authored
Add ath12k_hw_params for new ath12k AHB based WiFi device IPQ5332. Some hardware parameters like hw_ops, wmi_init & hal_ops are same between IPQ5332 and QCN9274, hence use these same parameters for IPQ5332. Tested-on: IPQ5332 hw1.0 AHB WLAN.WBE.1.3.1-00130-QCAHKSWPL_SILICONZ-1 Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00210-QCAHKSWPL_SILICONZ-1 Signed-off-by:
Balamurugan S <quic_bselvara@quicinc.com> Co-developed-by:
P Praneesh <quic_ppranees@quicinc.com> Signed-off-by:
P Praneesh <quic_ppranees@quicinc.com> Reviewed-by:
Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Signed-off-by:
Raj Kumar Bhagat <quic_rajkbhag@quicinc.com> Link: https://patch.msgid.link/20250321-ath12k-ahb-v12-4-bb389ed76ae5@quicinc.com Signed-off-by:
Jeff Johnson <jeff.johnson@oss.qualcomm.com>
-
P Praneesh authored
IPQ5332 device have different register address values for the below registers: HAL_TCL1_RING_BASE_LSB HAL_TCL1_RING_BASE_MSB HAL_TCL2_RING_BASE_LSB HAL_SEQ_WCSS_UMAC_CE0_SRC_REG HAL_SEQ_WCSS_UMAC_CE0_DST_REG HAL_SEQ_WCSS_UMAC_CE1_SRC_REG HAL_SEQ_WCSS_UMAC_CE1_DST_REG Hence, refactor ath12k_hw_regs structure to accommodate these changes in IPQ5332. Tested-on: IPQ5332 hw1.0 AHB WLAN.WBE.1.3.1-00130-QCAHKSWPL_SILICONZ-1 Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00210-QCAHKSWPL_SILICONZ-1 Signed-off-by:
P Praneesh <quic_ppranees@quicinc.com> Co-developed-by:
Balamurugan S <quic_bselvara@quicinc.com> Signed-off-by:
Balamurugan S <quic_bselvara@quicinc.com> Reviewed-by:
Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Signed-off-by:
Raj Kumar Bhagat <quic_rajkbhag@quicinc.com> Link: https://patch.msgid.link/20250321-ath12k-ahb-v12-3-bb389ed76ae5@quicinc.com Signed-off-by:
Jeff Johnson <jeff.johnson@oss.qualcomm.com>
-
Balamurugan S authored
In the current ath12k implementation, the CE addresses CE_HOST_IE_ADDRESS and CE_HOST_IE_2_ADDRESS are incorrect. These values were inherited from ath11k, but ath12k does not currently use them. However, the Ath12k AHB support relies on these addresses. Therefore, correct the CE addresses for ath12k. Tested-on: IPQ5332 hw1.0 AHB WLAN.WBE.1.3.1-00130-QCAHKSWPL_SILICONZ-1 Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00210-QCAHKSWPL_SILICONZ-1 Signed-off-by:
Balamurugan S <quic_bselvara@quicinc.com> Reviewed-by:
Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Signed-off-by:
Raj Kumar Bhagat <quic_rajkbhag@quicinc.com> Link: https://patch.msgid.link/20250321-ath12k-ahb-v12-2-bb389ed76ae5@quicinc.com Signed-off-by:
Jeff Johnson <jeff.johnson@oss.qualcomm.com>
-
Raj Kumar Bhagat authored
Add device-tree bindings for the ATH12K module found in the IPQ5332 device. Reviewed-by:
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by:
Raj Kumar Bhagat <quic_rajkbhag@quicinc.com> Link: https://patch.msgid.link/20250321-ath12k-ahb-v12-1-bb389ed76ae5@quicinc.com Signed-off-by:
Jeff Johnson <jeff.johnson@oss.qualcomm.com>
-
Baochen Qiang authored
ieee80211_chanctx_conf struct is not put at the end of ath12k_link_vif. Note ieee80211_chanctx_conf has flexible array member inside it, causing below warning with GCC-14: drivers/net/wireless/ath/ath12k/core.h:298:39: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] Although there is no issue for now since the array is not getting used, this should be fixed to avoid any potential data corruption issue in the future. Remove this struct from ath12k_link_vif, fetch it from ieee80211_bss_conf instead when needed. This change only applies to WCN7850, and should has no impact on other chipsets. This is an alternative to the solution proposed in [1]. Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 Reported-by:
Gustavo A. R. Silva <gustavoars@kernel.org> Closes: https://msgid.link/Z8-Snz86Xfwdlyd7@kspp # [1] Signed-off-by:
Baochen Qiang <quic_bqiang@quicinc.com> Reviewed-by:
Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Link: https://patch.msgid.link/20250321-ath12k-dont-put-chanctx-in-arvif-v1-1-c8e93061952b@quicinc.com Signed-off-by:
Jeff Johnson <jeff.johnson@oss.qualcomm.com>
-
- Mar 17, 2025
-
-
Muna Sinada authored
PMF debug log has an open parenthesis that is not needed. Remove open parenthesis. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-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:
Muna Sinada <muna.sinada@oss.qualcomm.com> Link: https://patch.msgid.link/20250314185605.68454-1-muna.sinada@oss.qualcomm.com Signed-off-by:
Jeff Johnson <jeff.johnson@oss.qualcomm.com>
-
Kees Cook authored
When a character array without a terminating NUL character has a static initializer, GCC 15's -Wunterminated-string-initialization will only warn if the array lacks the "nonstring" attribute[1]. Mark the arrays with __nonstring to and correctly identify the char array as "not a C string" and thereby eliminate the warning. Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117178 [1] Cc: Christian Lamparter <chunkeey@googlemail.com> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: linux-wireless@vger.kernel.org Signed-off-by:
Kees Cook <kees@kernel.org> Acked-by:
Christian Lamparter <chunkeey@gmail.com> Link: https://patch.msgid.link/20250310222339.work.654-kees@kernel.org Signed-off-by:
Jeff Johnson <jeff.johnson@oss.qualcomm.com>
-
Aditya Kumar Singh authored
Driver does not support get_txpower mac ops because of which cfg80211 returns vif->bss_conf.txpower to user space. bss_conf.txpower gets its value from ieee80211_channel->max_reg_power. However, the final txpower is dependent on few other parameters apart from max regulatory supported power. It is the firmware which knows about all these parameters and considers the minimum for each packet transmission. All ath12k firmware reports the final TX power in firmware pdev stats which falls under fw_stats. add get_txpower mac ops to get the TX power from firmware leveraging fw_stats and return it accordingly. While at it, there is a possibility that repeated stats request WMI commands are queued to FW if mac80211/userspace does get tx power back to back(in Multiple BSS cases). This could potentially consume the WMI queue completely. Hence limit this by fetching the power only for every 5 seconds and reusing the value until the refresh timeout or when there is a change in channel. Also remove init_completion(&ar->fw_stats_complete) in ath12k_mac_hw_register() as ath12k_fw_stats_init() takes care of it for each ar. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-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:
Aditya Kumar Singh <aditya.kumar.singh@oss.qualcomm.com> Signed-off-by:
Rameshkumar Sundaram <rameshkumar.sundaram@oss.qualcomm.com> Reviewed-by:
Mahendran P <quic_mahep@quicinc.com> Link: https://patch.msgid.link/20250306102215.1300522-3-rameshkumar.sundaram@oss.qualcomm.com Signed-off-by:
Jeff Johnson <jeff.johnson@oss.qualcomm.com>
-
Aditya Kumar Singh authored
Currently, firmware stats, comprising pdev, vdev and beacon stats are part of debugfs. In firmware pdev stats, firmware reports the final Tx power used to transmit each packet. If driver wants to know the final Tx power being used at firmware level, it can leverage from firmware pdev stats. Move firmware stats out of debugfs context in order to leverage the final Tx power reported in it even when debugfs is disabled. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-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:
Aditya Kumar Singh <aditya.kumar.singh@oss.qualcomm.com> Signed-off-by:
Rameshkumar Sundaram <rameshkumar.sundaram@oss.qualcomm.com> Reviewed-by:
Mahendran P <quic_mahep@quicinc.com> Link: https://patch.msgid.link/20250306102215.1300522-2-rameshkumar.sundaram@oss.qualcomm.com Signed-off-by:
Jeff Johnson <jeff.johnson@oss.qualcomm.com>
-
Sriram R authored
Currently, for 320 MHz bandwidth, center frequency1 and center frequency2 are not passed correctly to the firmware. Set center frequency1 as the center frequency of the primary 160 MHz channel segment and center frequency2 as the center frequency of the 320 MHz channel and pass the values to the firmware. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1 Signed-off-by:
Sriram R <quic_srirrama@quicinc.com> Signed-off-by:
Suraj P Kizhakkethil <quic_surapk@quicinc.com> Reviewed-by:
Aditya Kumar Singh <aditya.kumar.singh@oss.qualcomm.com> Link: https://patch.msgid.link/20250304095315.3050325-3-quic_surapk@quicinc.com Signed-off-by:
Jeff Johnson <jeff.johnson@oss.qualcomm.com>
-
Suraj P Kizhakkethil authored
Currently, for 160 MHz bandwidth, center frequency1 and center frequency2 are not passed correctly to the firmware. Set center frequency1 as the center frequency of the primary 80 MHz channel segment and center frequency2 as the center frequency of the 160 MHz channel and pass the values to the firmware. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1 Signed-off-by:
Suraj P Kizhakkethil <quic_surapk@quicinc.com> Reviewed-by:
Aditya Kumar Singh <aditya.kumar.singh@oss.qualcomm.com> Link: https://patch.msgid.link/20250304095315.3050325-2-quic_surapk@quicinc.com Signed-off-by:
Jeff Johnson <jeff.johnson@oss.qualcomm.com>
-
- Mar 14, 2025
-
-
A client driver may use mhi_unprepare_from_transfer() to quiesce incoming data during the client driver's tear down. The client driver might also be processing data at the same time, resulting in a call to mhi_queue_buf() which will invoke mhi_gen_tre(). If mhi_gen_tre() runs after mhi_unprepare_from_transfer() has torn down the channel, a panic will occur due to an invalid dereference leading to a page fault. This occurs because mhi_gen_tre() does not verify the channel state after locking it. Fix this by having mhi_gen_tre() confirm the channel state is valid, or return error to avoid accessing deinitialized data. Cc: stable@vger.kernel.org # 6.8 Fixes: b89b6a86 ("bus: mhi: host: Add spinlock to protect WP access when queueing TREs") Signed-off-by:
Jeffrey Hugo <quic_jhugo@quicinc.com> Signed-off-by:
Jeff Hugo <jeff.hugo@oss.qualcomm.com> Reviewed-by:
Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com> Reviewed-by:
Youssef Samir <quic_yabdulra@quicinc.com> Reviewed-by:
Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by:
Troy Hanson <quic_thanson@quicinc.com> Link: https://lore.kernel.org/r/20250306172913.856982-1-jeff.hugo@oss.qualcomm.com [mani: added stable tag] Signed-off-by:
Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
-
- Mar 07, 2025
-
-
git://git.kernel.org/pub/scm/linux/kernel/git/ath/athJohannes Berg authored
Jeff Johnson says: ==================== ath.git patches for v6.15 This development cycle again featured multiple patchsets to ath12k to support the new 802.11be MLO feature. In addition, there was the usual set of bug fixes and cleanups. ==================== Link: https://lore.kernel.org/linux-wireless/d01b1976-ebe8-48cd-8f49-32bfa00bed7e@oss.qualcomm.com/ Signed-off-by:
Johannes Berg <johannes.berg@intel.com>
-
- Mar 05, 2025
-
-
Miri Korenblit authored
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>
-
- Mar 04, 2025
-
-
Bob Copeland authored
Signed-off-by:
Bob Copeland <me@bobcopeland.com>
-
Bob Copeland authored
-
Bob Copeland authored
-
Jakub Kicinski authored
Merge tag 'wireless-next-2025-03-04-v2' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next Johannes Berg says: ==================== First 6.15 material: * cfg80211/mac80211 - remove cooked monitor support - strict mode for better AP testing - basic EPCS support - OMI RX bandwidth reduction support * rtw88 - preparation for RTL8814AU support * rtw89 - use wiphy_lock/wiphy_work - preparations for MLO - BT-Coex improvements - regulatory support in firmware files * iwlwifi - preparations for the new iwlmld sub-driver * tag 'wireless-next-2025-03-04-v2' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (128 commits) wifi: iwlwifi: remove mld/roc.c wifi: mac80211: refactor populating mesh related fields in sinfo wifi: cfg80211: reorg sinfo structure elements for mesh wifi: iwlwifi: Fix spelling mistake "Increate" -> "Increase" wifi: iwlwifi: add Debug Host Command APIs wifi: iwlwifi: add IWL_MAX_NUM_IGTKS macro wifi: iwlwifi: add OMI bandwidth reduction APIs wifi: iwlwifi: remove mvm prefix from iwl_mvm_d3_end_notif wifi: iwlwifi: remember if the UATS table was read successfully wifi: iwlwifi: export iwl_get_lari_config_bitmap wifi: iwlwifi: add support for external 32 KHz clock wifi: iwlwifi: mld: add a debug level for EHT prints wifi: iwlwifi: mld: add a debug level for PTP prints wifi: iwlwifi: remove mvm prefix from iwl_mvm_esr_mode_notif wifi: iwlwifi: use 0xff instead of 0xffffffff for invalid wifi: iwlwifi: location api cleanup wifi: cfg80211: expose update timestamp to drivers wifi: mac80211: add ieee80211_iter_chan_contexts_mtx wifi: mac80211: fix integer overflow in hwmp_route_info_get() wifi: mac80211: Fix possible integer promotion issue ... ==================== Link: https://patch.msgid.link/20250304125605.127914-3-johannes@sipsolutions.net Signed-off-by:
Jakub Kicinski <kuba@kernel.org>
-
Paolo Abeni authored
Breno Leitao says: ==================== netconsole: Add taskname sysdata support This patchset introduces a new feature to the netconsole extradata subsystem that enables the inclusion of the current task's name in the sysdata output of netconsole messages. This enhancement is particularly valuable for large-scale deployments, such as Meta's, where netconsole collects messages from millions of servers and stores them in a data warehouse for analysis. Engineers often rely on these messages to investigate issues and assess kernel health. One common challenge we face is determining the context in which a particular message was generated. By including the task name (task->comm) with each message, this feature provides a direct answer to the frequently asked question: "What was running when this message was generated?" This added context will significantly improve our ability to diagnose and troubleshoot issues, making it easier to interpret output of netconsole. The patchset consists of seven patches that implement the following changes: * Refactor CPU number formatting into a separate function * Prefix CPU_NR sysdata feature with SYSDATA_ * Patch to covert a bitwise operation into boolean * Add configfs controls for taskname sysdata feature * Add taskname to extradata entry count * Add support for including task name in netconsole's extra data output * Document the task name feature in Documentation/networking/netconsole.rst * Add test coverage for the task name feature to the existing sysdata selftest script These changes allow users to enable or disable the task name feature via configfs and provide additional context for kernel messages by showing which task generated each console message. I have tested these patches on some servers and they seem to work as expected. v1: https://lore.kernel.org/r/20250221-netcons_current-v1-0-21c86ae8fc0d@debian.org Signed-off-by:
Breno Leitao <leitao@debian.org> ==================== Link: https://patch.msgid.link/20250228-netcons_current-v2-0-f53ff79a0db2@debian.org Signed-off-by:
Paolo Abeni <pabeni@redhat.com>
-
Breno Leitao authored
Add test coverage for the netconsole task name feature to the existing sysdata selftest script. This extends the test infrastructure to verify that task names are correctly appended when enabled and absent when disabled. The test validates that: - Task names appear in the expected format "taskname=<name>" - Task names are included when the feature is enabled - Task names are excluded when the feature is disabled - The feature works correctly alongside other sysdata fields like CPU Signed-off-by:
Breno Leitao <leitao@debian.org> Reviewed-by:
Simon Horman <horms@kernel.org> Signed-off-by:
Paolo Abeni <pabeni@redhat.com>
-
Breno Leitao authored
Add documentation for the netconsole task name feature in Documentation/networking/netconsole.rst. This explains how to enable task name via configfs and demonstrates the output format. The documentation includes: - How to enable/disable the feature via taskname_enabled - The format of the task name in the output - An example showing the task name appearing in messages Signed-off-by:
Breno Leitao <leitao@debian.org> Reviewed-by:
Simon Horman <horms@kernel.org> Signed-off-by:
Paolo Abeni <pabeni@redhat.com>
-
Breno Leitao authored
This is the core patch for this whole patchset. Add support for including the current task's name in netconsole's extra data output. This adds a new append_taskname() function that writes the task name (from current->comm) into the target's extradata buffer, similar to how CPU numbers are handled. The task name is included when the SYSDATA_TASKNAME field is set, appearing in the format "taskname=<name>" in the output. This additional context can help with debugging by showing which task generated each console message. Signed-off-by:
Breno Leitao <leitao@debian.org> Reviewed-by:
Simon Horman <horms@kernel.org> Signed-off-by:
Paolo Abeni <pabeni@redhat.com>
-
Breno Leitao authored
Add configfs interface to enable/disable the taskname sysdata feature. This adds the following functionality: The implementation follows the same pattern as the existing CPU number feature, ensuring consistent behavior and error handling across sysdata features. Signed-off-by:
Breno Leitao <leitao@debian.org> Reviewed-by:
Simon Horman <horms@kernel.org> Signed-off-by:
Paolo Abeni <pabeni@redhat.com>
-
Breno Leitao authored
New SYSDATA_TASKNAME feature flag to track when taskname append is enabled. Additional check in count_extradata_entries() to include taskname in total, counting it as an entry in extradata. This function is used to check if we are not overflowing the number of extradata items. Signed-off-by:
Breno Leitao <leitao@debian.org> Reviewed-by:
Simon Horman <horms@kernel.org> Signed-off-by:
Paolo Abeni <pabeni@redhat.com>
-
Breno Leitao authored
Extract CPU number formatting logic from prepare_extradata() into a new append_cpu_nr() function. This refactoring improves code organization by isolating CPU number formatting into its own function while reducing the complexity of prepare_extradata(). The change prepares the codebase for the upcoming taskname feature by establishing a consistent pattern for handling sysdata features. The CPU number formatting logic itself remains unchanged; only its location has moved to improve maintainability. Signed-off-by:
Breno Leitao <leitao@debian.org> Reviewed-by:
Simon Horman <horms@kernel.org> Signed-off-by:
Paolo Abeni <pabeni@redhat.com>
-
Breno Leitao authored
Convert the current state assignment to use explicit boolean conversion, making the code more robust and easier to read. This change adds a double-negation operator to ensure consistent boolean conversion as suggested by Paolo[1]. This approach aligns with the existing pattern used in sysdata_cpu_nr_enabled_show(). Link: https://lore.kernel.org/all/7309e760-63b0-4b58-ad33-2fb8db361141@redhat.com/ [1] Signed-off-by:
Breno Leitao <leitao@debian.org> Reviewed-by:
Simon Horman <horms@kernel.org> Signed-off-by:
Paolo Abeni <pabeni@redhat.com>
-
Breno Leitao authored
Rename the CPU_NR enum value to SYSDATA_CPU_NR to establish a consistent naming convention for sysdata features. This change prepares for upcoming additions to the sysdata feature set by clearly grouping related features under the SYSDATA prefix. This change is purely cosmetic and does not modify any functionality. Signed-off-by:
Breno Leitao <leitao@debian.org> Reviewed-by:
Simon Horman <horms@kernel.org> Signed-off-by:
Paolo Abeni <pabeni@redhat.com>
-
Johannes Berg authored
This file should never have been part of the commit, remove it. Fixes: af3be908 ("wifi: iwlwifi: support ROC version 6") Signed-off-by:
Johannes Berg <johannes.berg@intel.com>
-