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path: root/drivers/net/wireless/mediatek/mt76/dma.c
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* wifi: mt76: mt7915: disable WFDMA Tx/Rx during SER recoveryBo Jiao2023-07-251-0/+6
| | | | | | | | | Stop WFDMA transaction to avoid potential unexpected issue while doing system recovery. Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com> Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* wifi: mt76: dma: use napi_build_skbFelix Fietkau2023-04-191-1/+1
| | | | | | Improves performance by using bulk allocation Signed-off-by: Felix Fietkau <nbd@nbd.name>
* wifi: mt76: add missing locking to protect against concurrent rx/status callsFelix Fietkau2023-04-171-0/+2
| | | | | | | | | | According to the documentation, ieee80211_rx_list must not run concurrently with ieee80211_tx_status (or its variants). Cc: stable@vger.kernel.org Fixes: 88046b2c9f6d ("mt76: add support for reporting tx status with skb") Reported-by: Brian Coverstone <brian@mainsequence.net> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* wifi: mt76: drop the incorrect scatter and gather framePeter Chiu2023-04-171-2/+4
| | | | | | | | | The scatter and gather frame may be incorrect because WED and WO may send frames to host driver interleaved. Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com> Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* wifi: mt76: mt7915: add mt7915 wed reset callbacksLorenzo Bianconi2023-02-031-0/+2
| | | | | | | | | | | | Introduce mt7915_mmio_wed_reset_complete and mt7915_mmio_wed_reset_complete callbacks and the related wait queues in order to wait for wed reset completion during wlan reset. Tested-by: Daniel Golle <daniel@makrotopia.org> Co-developed-by: Sujuan Chen <sujuan.chen@mediatek.com> Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* wifi: mt76: dma: reset wed queues in mt76_dma_rx_resetSujuan Chen2023-02-031-2/+7
| | | | | | | | | | This is a preliminary patch to introduce proper wed reset support. Tested-by: Daniel Golle <daniel@makrotopia.org> Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* wifi: mt76: dma: add reset to mt76_dma_wed_setup signatureSujuan Chen2023-02-031-6/+10
| | | | | | | | | | | Export mt76_dma_wed_setup routine. This is a preliminary patch to introduce proper wed reset support. Tested-by: Daniel Golle <daniel@makrotopia.org> Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* wifi: mt76: mt7915: release rxwi in mt7915_wed_release_rx_bufSujuan Chen2023-02-031-1/+2
| | | | | | | | | | | Free rxwi cache releasing WED rx buffers in mt7915_wed_release_rx_buf routine Tested-by: Daniel Golle <daniel@makrotopia.org> Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* wifi: mt76: switch to page_pool allocatorLorenzo Bianconi2023-02-031-37/+35
| | | | | | | | | | | | In order to reduce possible memory allocation failures due to memory fragmentation caused by page_frag_cache allocator, switch to page_pool allocator for dma and usb mt76 drivers. Remove per rx-queue page_frag_cache Co-developed-by: Felix Fietkau <nbd@nbd.name> Tested-by: Deren Wu <deren.wu@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* wifi: mt76: dma: fix memory leak running mt76_dma_tx_cleanupLorenzo Bianconi2023-02-031-2/+1
| | | | | | | | | Fix device unregister memory leak and alway cleanup all configured rx queues in mt76_dma_tx_cleanup routine. Fixes: 52546e27787e ("wifi: mt76: add WED RX support to dma queue alloc") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* wifi: mt76: dma: free rx_head in mt76_dma_rx_cleanupLorenzo Bianconi2023-02-031-6/+7
| | | | | | | | Free rx_head skb in mt76_dma_rx_cleanup routine in order to avoid possible memory leak at module unload. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* wifi: mt76: introduce mt76_queue_is_wed_rx utility routineLorenzo Bianconi2023-02-031-4/+2
| | | | | | | This patch does not change any logic, just improve code readability. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* Merge wireless into wireless-nextKalle Valo2023-01-171-52/+72
|\ | | | | | | | | | | | | | | | | Due to the two cherry picked commits from wireless to wireless-next we have several conflicts in mt76. To avoid any bugs with conflicts merge wireless into wireless-next. 96f134dc1964 wifi: mt76: handle possible mt76_rx_token_consume failures fe13dad8992b wifi: mt76: dma: do not increment queue head if mt76_dma_add_buf fails
| * wifi: mt76: dma: fix a regression in adding rx buffersFelix Fietkau2023-01-161-52/+72
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When adding WED support, mt76_dma_add_buf was accidentally changed to set the skip_buf0 flag for tx buffers on the wrong queue descriptor entry. Additionally, there is a rxwi leak when rx buffer allocation fails. Fix this and make the code more readable by adding a separate function for adding rx buffers. Reported-by: Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com> Tested-by: Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com> Link: https://lore.kernel.org/r/CABXGCsMEnQd=gYKTd1knRsWuxCb=Etv5nAre%2BXJS_s5FgVteYA@mail.gmail.com/ Reported-by: Mike Lothian <mike@fireburn.co.uk> Link: https://bugzilla.kernel.org/show_bug.cgi?id=216829 Reported-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/lkml/20230112171706.294550-1-angelogioacchino.delregno@collabora.com/ Fixes: cd372b8c99c5 ("wifi: mt76: add WED RX support to mt76_dma_{add,get}_buf") Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20230113105848.34642-3-nbd@nbd.name
| * wifi: mt76: handle possible mt76_rx_token_consume failuresLorenzo Bianconi2023-01-161-1/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | Take into account possible error conditions of mt76_rx_token_consume routine in mt7915_mmio_wed_init_rx_buf() and mt76_dma_add_buf() Fixes: cd372b8c99c5 ("wifi: mt76: add WED RX support to mt76_dma_{add,get}_buf") Fixes: 4f831d18d12d ("wifi: mt76: mt7915: enable WED RX support") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name> (cherry picked from commit 96f134dc19645be4994e89a2f68fa89309becbee) Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20230113105848.34642-2-nbd@nbd.name
| * wifi: mt76: dma: do not increment queue head if mt76_dma_add_buf failsLorenzo Bianconi2023-01-161-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | Do not increment queue head if mt76_dma_add_buf fails for Wireless Ethernet Dispatcher rx queues. Fixes: cd372b8c99c5 ("wifi: mt76: add WED RX support to mt76_dma_{add,get}_buf") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name> (cherry picked from commit fe13dad8992be0b26c1be390bcd111acf9892c17) Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20230113105848.34642-1-nbd@nbd.name
* | Merge tag 'mt76-for-kvalo-2022-12-09' of https://github.com/nbd168/wirelessKalle Valo2022-12-211-20/+15
|\ \ | |/ |/| | | | | | | | | mt76 patches for 6.2 - fixes - per-PHY LED support
| * wifi: mt76: dma: rely on queue page_frag_cache for wed rx queuesLorenzo Bianconi2022-12-091-15/+1
| | | | | | | | | | | | | | | | | | | | Since mt76_dma_rx_fill() acquires mt76_queue spinlock, rely on mt76_queue page_frag_cache in mt76_dma_rx_fill() instead of wed rx_buf_ring page_frag_cache. Get rid of mt76_dma_rx_get_frag_cache since it is no longer used. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
| * wifi: mt76: handle possible mt76_rx_token_consume failuresLorenzo Bianconi2022-12-091-1/+9
| | | | | | | | | | | | | | | | | | | | Take into account possible error conditions of mt76_rx_token_consume routine in mt7915_mmio_wed_init_rx_buf() and mt76_dma_add_buf() Fixes: cd372b8c99c5 ("wifi: mt76: add WED RX support to mt76_dma_{add,get}_buf") Fixes: 4f831d18d12d ("wifi: mt76: mt7915: enable WED RX support") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
| * wifi: mt76: dma: do not increment queue head if mt76_dma_add_buf failsLorenzo Bianconi2022-12-091-4/+5
| | | | | | | | | | | | | | | | | | Do not increment queue head if mt76_dma_add_buf fails for Wireless Ethernet Dispatcher rx queues. Fixes: cd372b8c99c5 ("wifi: mt76: add WED RX support to mt76_dma_{add,get}_buf") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* | net: ethernet: mtk_wed: add reset to rx_ring_setup callbackLorenzo Bianconi2022-12-061-1/+1
|/ | | | | | | | | | | | | | This patch adds reset parameter to mtk_wed_rx_ring_setup signature in order to align rx_ring_setup callback to tx_ring_setup one introduced in 'commit 23dca7a90017 ("net: ethernet: mtk_wed: add reset to tx_ring_setup callback")' Co-developed-by: Sujuan Chen <sujuan.chen@mediatek.com> Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Reviewed-by: Leon Romanovsky <leonro@nvidia.com> Link: https://lore.kernel.org/r/29c6e7a5469e784406cf3e2920351d1207713d05.1670239984.git.lorenzo@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
* Merge tag 'wireless-next-2022-12-02' of ↵Jakub Kicinski2022-12-021-50/+194
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next Kalle Valo says: ==================== wireless-next patches for v6.2 Third set of patches for v6.2. mt76 has a new driver for mt7996 Wi-Fi 7 devices and iwlwifi also got initial Wi-Fi 7 support. Otherwise smaller features and fixes. Major changes: ath10k - store WLAN firmware version in SMEM image table mt76 - mt7996: new driver for MediaTek Wi-Fi 7 (802.11be) devices - mt7986, mt7915: enable Wireless Ethernet Dispatch (WED) offload support - mt7915: add ack signal support - mt7915: enable coredump support - mt7921: remain_on_channel support - mt7921: channel context support iwlwifi - enable Wi-Fi 7 Extremely High Throughput (EHT) PHY capabilities - 320 MHz channels support * tag 'wireless-next-2022-12-02' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (144 commits) wifi: ath10k: fix QCOM_SMEM dependency wifi: mt76: mt7921e: add pci .shutdown() support wifi: mt76: mt7915: mmio: fix naming convention wifi: mt76: mt7996: add support to configure spatial reuse parameter set wifi: mt76: mt7996: enable ack signal support wifi: mt76: mt7996: enable use_cts_prot support wifi: mt76: mt7915: rely on band_idx of mt76_phy wifi: mt76: mt7915: enable per bandwidth power limit support wifi: mt76: mt7915: introduce mt7915_get_power_bound() mt76: mt7915: Fix PCI device refcount leak in mt7915_pci_init_hif2() wifi: mt76: do not send firmware FW_FEATURE_NON_DL region wifi: mt76: mt7921: Add missing __packed annotation of struct mt7921_clc wifi: mt76: fix coverity overrun-call in mt76_get_txpower() wifi: mt76: mt7996: add driver for MediaTek Wi-Fi 7 (802.11be) devices wifi: mt76: mt76x0: remove dead code in mt76x0_phy_get_target_power wifi: mt76: mt7915: fix band_idx usage wifi: mt76: mt7915: enable .sta_set_txpwr support wifi: mt76: mt7915: add basedband Txpower info into debugfs wifi: mt76: mt7915: add support to configure spatial reuse parameter set wifi: mt76: mt7915: add missing MODULE_PARM_DESC ... ==================== Link: https://lore.kernel.org/r/20221202214254.D0D3DC433C1@smtp.kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| * wifi: mt76: add info parameter to rx_skb signatureSujuan Chen2022-12-011-4/+4
| | | | | | | | | | | | | | | | | | | | This is a preliminary patch to introduce WED RX support for mt7915. Tested-by: Daniel Golle <daniel@makrotopia.org> Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
| * wifi: mt76: add WED RX support to dma queue allocLorenzo Bianconi2022-12-011-1/+9
| | | | | | | | | | | | | | | | | | | | | | Introduce the capability to allocate WED RX buffers in mt76_dma_wed_setup routine. Tested-by: Daniel Golle <daniel@makrotopia.org> Co-developed-by: Sujuan Chen <sujuan.chen@mediatek.com> Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
| * wifi: mt76: add WED RX support to mt76_dma_rx_fillLorenzo Bianconi2022-12-011-6/+27
| | | | | | | | | | | | | | | | | | | | | | Introduce the capability to refill WED RX buffers in mt76_dma_rx_fill utility routine. Tested-by: Daniel Golle <daniel@makrotopia.org> Co-developed-by: Sujuan Chen <sujuan.chen@mediatek.com> Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
| * wifi: mt76: add WED RX support to mt76_dma_{add,get}_bufLorenzo Bianconi2022-12-011-39/+86
| | | | | | | | | | | | | | | | | | | | | | Introduce the capability to configure RX WED in mt76_dma_{add,get}_buf utility routines. Tested-by: Daniel Golle <daniel@makrotopia.org> Co-developed-by: Sujuan Chen <sujuan.chen@mediatek.com> Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
| * wifi: mt76: introduce rxwi and rx token utility routinesSujuan Chen2022-12-011-0/+68
| | | | | | | | | | | | | | | | | | | | This is a preliminary patch to introduce WED RX support for mt7915. Tested-by: Daniel Golle <daniel@makrotopia.org> Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* | net: ethernet: mtk_wed: add reset to tx_ring_setup callbackLorenzo Bianconi2022-11-291-1/+1
|/ | | | | | | | | | | Introduce reset parameter to mtk_wed_tx_ring_setup signature. This is a preliminary patch to add Wireless Ethernet Dispatcher reset support. Co-developed-by: Sujuan Chen <sujuan.chen@mediatek.com> Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
* wifi: mt76: fix rx checksum offload on mt7615/mt7915/mt7921Felix Fietkau2022-10-111-4/+1
| | | | | | | | | | | | | | | | | Checking the relevant rxd bits for the checksum information only indicates if the checksum verification was performed by the hardware and doesn't show actual checksum errors. Checksum errors are indicated in the info field of the DMA descriptor. Fix packets erroneously marked as CHECKSUM_UNNECESSARY by checking the extra bits as well. Those bits are only passed to the driver for MMIO devices at the moment, so limit checksum offload to those. Fixes: 2122dfbfd0bd ("mt76: mt7615: add rx checksum offload support") Fixes: 94244d2ea503 ("mt76: mt7915: add rx checksum offload support") Fixes: 0e75732764e8 ("mt76: mt7921: enable rx csum offload") Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20221005130824.23371-2-nbd@nbd.name
* net: drop the weight argument from netif_napi_addJakub Kicinski2022-09-281-1/+1
| | | | | | | | | | | We tell driver developers to always pass NAPI_POLL_WEIGHT as the weight to netif_napi_add(). This may be confusing to newcomers, drop the weight argument, those who really need to tweak the weight can use netif_napi_add_weight(). Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> # for CAN Link: https://lore.kernel.org/r/20220927132753.750069-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
* mt76: introduce phys array in mt76_dev structureLorenzo Bianconi2022-07-111-4/+9
| | | | | | | | | Introduce phys array in mt76_dev structure to reference mt76_phy supported by the chipset. This is a preliminary patch to introduce newer chipset support. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: pass original queue id from __mt76_tx_queue_skb to the driverFelix Fietkau2022-07-111-3/+3
| | | | | | MT7615 and newer map multiple software tx queues to the hardware id Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: mt7915: add Wireless Ethernet Dispatch supportFelix Fietkau2022-05-131-33/+127
| | | | | | This is used to support hardware flow offloading from Ethernet to WLAN Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: add support for overriding the device used for DMA mappingFelix Fietkau2022-05-131-17/+17
| | | | | | | | | WED support requires using non-coherent DMA, whereas the PCI device might be configured for coherent DMA. The WED driver will take care of changing the PCI HIF coherent IO setting on attach. Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: dma: add wrapper macro for accessing queue registersFelix Fietkau2022-05-131-9/+12
| | | | | | Preparation for adding indirection used for Wireless Ethernet Dispatch support Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: dma: use kzalloc instead of devm_kzalloc for txwiFelix Fietkau2022-05-131-2/+4
| | | | | | | dma unmap is already needed for cleanup anyway, so we don't need the extra tracking and can save a bit of memory here Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: dma: initialize skip_unmap in mt76_dma_rx_fillLorenzo Bianconi2022-02-031-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Even if it is only a false-positive since skip_buf0/skip_buf1 are only used in mt76_dma_tx_cleanup_idx routine, initialize skip_unmap in mt76_dma_rx_fill in order to fix the following UBSAN report: [ 13.924906] UBSAN: invalid-load in linux-5.15.0/drivers/net/wireless/mediatek/mt76/dma.c:162:13 [ 13.924909] load of value 225 is not a valid value for type '_Bool' [ 13.924912] CPU: 9 PID: 672 Comm: systemd-udevd Not tainted 5.15.0-18-generic #18-Ubuntu [ 13.924914] Hardware name: LENOVO 21A0000CMX/21A0000CMX, BIOS R1MET43W (1.13 ) 11/05/2021 [ 13.924915] Call Trace: [ 13.924917] <TASK> [ 13.924920] show_stack+0x52/0x58 [ 13.924925] dump_stack_lvl+0x4a/0x5f [ 13.924931] dump_stack+0x10/0x12 [ 13.924932] ubsan_epilogue+0x9/0x45 [ 13.924934] __ubsan_handle_load_invalid_value.cold+0x44/0x49 [ 13.924935] ? __iommu_dma_map+0x84/0xf0 [ 13.924939] mt76_dma_add_buf.constprop.0.cold+0x23/0x85 [mt76] [ 13.924949] mt76_dma_rx_fill.isra.0+0x102/0x1f0 [mt76] [ 13.924954] mt76_dma_init+0xc9/0x150 [mt76] [ 13.924959] ? mt7921_dma_enable+0x110/0x110 [mt7921e] [ 13.924966] mt7921_dma_init+0x1e3/0x260 [mt7921e] [ 13.924970] mt7921_register_device+0x29d/0x510 [mt7921e] [ 13.924975] mt7921_pci_probe.part.0+0x17f/0x1b0 [mt7921e] [ 13.924980] mt7921_pci_probe+0x43/0x60 [mt7921e] [ 13.924984] local_pci_probe+0x4b/0x90 [ 13.924987] pci_device_probe+0x115/0x1f0 [ 13.924989] really_probe+0x21e/0x420 [ 13.924992] __driver_probe_device+0x115/0x190 [ 13.924994] driver_probe_device+0x23/0xc0 [ 13.924996] __driver_attach+0xbd/0x1d0 [ 13.924998] ? __device_attach_driver+0x110/0x110 [ 13.924999] bus_for_each_dev+0x7e/0xc0 [ 13.925001] driver_attach+0x1e/0x20 [ 13.925003] bus_add_driver+0x135/0x200 [ 13.925005] driver_register+0x95/0xf0 [ 13.925008] ? 0xffffffffc0766000 [ 13.925010] __pci_register_driver+0x68/0x70 [ 13.925011] mt7921_pci_driver_init+0x23/0x1000 [mt7921e] [ 13.925015] do_one_initcall+0x48/0x1d0 [ 13.925019] ? kmem_cache_alloc_trace+0x19e/0x2e0 [ 13.925022] do_init_module+0x62/0x280 [ 13.925025] load_module+0xac9/0xbb0 [ 13.925027] __do_sys_finit_module+0xbf/0x120 [ 13.925029] __x64_sys_finit_module+0x18/0x20 [ 13.925030] do_syscall_64+0x5c/0xc0 [ 13.925033] ? do_syscall_64+0x69/0xc0 [ 13.925034] ? sysvec_reschedule_ipi+0x78/0xe0 [ 13.925036] ? asm_sysvec_reschedule_ipi+0xa/0x20 [ 13.925039] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 13.925040] RIP: 0033:0x7fbf2b90f94d [ 13.925045] RSP: 002b:00007ffe2ec7e5d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 13.925047] RAX: ffffffffffffffda RBX: 000056106b0634e0 RCX: 00007fbf2b90f94d [ 13.925048] RDX: 0000000000000000 RSI: 00007fbf2baa3441 RDI: 0000000000000013 [ 13.925049] RBP: 0000000000020000 R08: 0000000000000000 R09: 0000000000000002 [ 13.925050] R10: 0000000000000013 R11: 0000000000000246 R12: 00007fbf2baa3441 [ 13.925051] R13: 000056106b062620 R14: 000056106b0610c0 R15: 000056106b0640d0 [ 13.925053] </TASK> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: add MT_RXQ_MAIN_WA for mt7916Bo Jiao2022-02-031-2/+11
| | | | | | | | | | | | mt7916 add MT_RXQ_MAIN_WA to receive tx free event separately This is an intermediate patch to add mt7916 support. Co-developed-by: Sujuan Chen <sujuan.chen@mediatek.com> Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com> Co-developed-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: allow drivers to drop rx packets earlyFelix Fietkau2021-12-191-7/+12
| | | | | | This can be used to free received events without allocating an extra skb Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: dma: use ieee80211_tx_status_ext to free packets when tx failsFelix Fietkau2021-06-171-6/+12
| | | | | | Fixes AQL issues on full queues, especially with 802.3 encap offload Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: intialize tx queue entry wcid to 0xffff by defaultFelix Fietkau2021-06-171-0/+1
| | | | | | Avoid accidentally mapping them to WCID 0 on completion Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: dma: add the capability to define a custom rx napi poll routineLorenzo Bianconi2021-04-211-5/+5
| | | | | | | | Add the capability to define a custom rx napi callback for each driver. This is a preliminary patch to properly support runtime-pm on rx side Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: fix potential DMA mapping leakFelix Fietkau2021-04-121-1/+1
| | | | | | | | | | | With buf uninitialized in mt76_dma_tx_queue_skb_raw, its field skip_unmap could potentially inherit a non-zero value from stack garbage. If this happens, it will cause DMA mappings for MCU command frames to not be unmapped after completion Fixes: 27d5c528a7ca ("mt76: fix double DMA unmap of the first buffer on 7615/7915") Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: dma: export mt76_dma_rx_cleanup routineLorenzo Bianconi2021-04-121-0/+1
| | | | | | | | | | Export mt76_dma_rx_cleanup routine in mt76_queue_ops data structure. This is a preliminary patch to introduce mt7921 chip reset support. Co-developed-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: dma: introduce mt76_dma_queue_reset routineLorenzo Bianconi2021-04-121-18/+28
| | | | | | | | | | | Introduce mt76_dma_queue_reset utility routine to reset a given hw queue. This is a preliminary patch to introduce mt7921 chip reset support. Co-developed-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: use threaded NAPIFelix Fietkau2021-04-121-2/+4
| | | | | | | | | | | | With threaded NAPI, the rx handler function is no longer bound to the CPU that fired the interrupt, which significantly helps to spread the workload over multiple CPUs, especially when multiple devices are using threaded NAPI at the same time. Exclude the tx handler from threaded NAPI by using a separate dummy netdev. The work is small and short-lived enough that it makes more sense to run it in softirq instead of creating a dedicated thread Signed-off-by: Felix Fietkau <nbd@nbd.name>
* mt76: dma: do not report truncated frames to mac80211Lorenzo Bianconi2021-02-261-4/+7
| | | | | | | | | | | | | | | Commit b102f0c522cf6 ("mt76: fix array overflow on receiving too many fragments for a packet") fixes a possible OOB access but it introduces a memory leak since the pending frame is not released to page_frag_cache if the frag array of skb_shared_info is full. Commit 93a1d4791c10 ("mt76: dma: fix a possible memory leak in mt76_add_fragment()") fixes the issue but does not free the truncated skb that is forwarded to mac80211 layer. Fix the leftover issue discarding even truncated skbs. Fixes: 93a1d4791c10 ("mt76: dma: fix a possible memory leak in mt76_add_fragment()") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/a03166fcc8214644333c68674a781836e0f57576.1612697217.git.lorenzo@kernel.org
* mt76: fix tx skb error handling in mt76_dma_tx_queue_skbFelix Fietkau2021-02-181-9/+6
| | | | | | | | | | | | | | | When running out of room in the tx queue after calling drv->tx_prepare_skb, the buffer list will already have been modified on MT7615 and newer drivers. This can leak a DMA mapping and will show up as swiotlb allocation failures on x86. Fix this by moving the queue length check further up. This is less accurate, since it can overestimate the needed room in the queue on MT7615 and newer, but the difference is small enough to not matter in practice. Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20210216135119.23809-1-nbd@nbd.name
* Merge tag 'wireless-drivers-next-2021-02-12' of ↵David S. Miller2021-02-121-2/+6
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next Kalle Valo says: ==================== wireless-drivers-next patches for v5.12 Second set of patches for v5.12. Last time there was a smaller pull request so unsurprisingly this time we have a big one. mt76 has new hardware support and lots of new features, iwlwifi getting new features and rtw88 got NAPI support. And the usual cleanups and fixes all over. Major changes: ath10k * support setting SAR limits via nl80211 rtw88 * support 8821 RFE type2 devices * NAPI support iwlwifi * add new FW API support * support for new So devices * support for RF interference mitigation (RFI) * support for PNVM (Platform Non-Volatile Memory, a firmware data file) from BIOS mt76 * add new mt7921e driver * 802.11 encap offload support * support for multiple pcie gen1 host interfaces on 7915 * 7915 testmode support * 7915 txbf support brcmfmac * support for CQM RSSI notifications wil6210 * support for extended DMG MCS 12.1 rate ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| * mt76: testmode: introduce dbdc supportShayne Chen2021-01-261-2/+6
| | | | | | | | | | | | | | | | | | | | Add testmode support for DBDC NICs (both MT7615D and MT7915D work). Testmode data and parameters are moved from per-dev to per-phy for maintaining the value of each band. Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Acked-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-10 14:34:23 +0000