kernel/drivers/net/wireless/mediatek/mt76/tx.c, branch linux-6.2.y

wifi: mt76: add missing locking to protect against concurrent rx/status calls

2023-05-11T14:10:51Z

commit 5b8ccdfb943f6a03c676d2ea816dd38c149e920b upstream. 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 Signed-off-by: Felix Fietkau Signed-off-by: Greg Kroah-Hartman

wifi: mt76: handle possible mt76_rx_token_consume failures

2023-01-16T15:27:16Z

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 Signed-off-by: Felix Fietkau (cherry picked from commit 96f134dc19645be4994e89a2f68fa89309becbee) Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20230113105848.34642-2-nbd@nbd.name

wifi: mt76: introduce rxwi and rx token utility routines

2022-12-01T16:29:14Z

This is a preliminary patch to introduce WED RX support for mt7915. Tested-by: Daniel Golle Co-developed-by: Lorenzo Bianconi Signed-off-by: Lorenzo Bianconi Signed-off-by: Sujuan Chen Signed-off-by: Felix Fietkau

wifi: mt76: fix rate reporting / throughput regression on mt7915 and newer

2022-10-06T05:19:04Z

mt7915 and newer need to report the rate_info that's stored in wcid->rate, since they don't fill info->status.rates. Cc: Jonas Jelonek Reported-by: Mikhail Gavrilov Link: https://lore.kernel.org/all/CABXGCsP0znm9pS-MiKtyxTXR7XiyFVqen0qzNpicGHDZKCzbwg@mail.gmail.com/ Fixes: 44fa75f207d8 ("mac80211: extend current rate control tx status API") Signed-off-by: Felix Fietkau Tested-by: Mikhail Gavrilov Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20220927093823.6007-1-nbd@nbd.name

mt76: convert MT_TX_HW_QUEUE_EXT_PHY to MT_TX_HW_QUEUE_PHY

2022-07-11T11:40:03Z

Report phy_indx in tx_info->hw_queue. This is a preliminary patch to add newer chipset support Co-developed-by: Bo Jiao Signed-off-by: Bo Jiao Signed-off-by: Lorenzo Bianconi Signed-off-by: Felix Fietkau

mt76: introduce phys array in mt76_dev structure

2022-07-11T11:40:03Z

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 Signed-off-by: Felix Fietkau

mt76: do not use skb_set_queue_mapping for internal purposes

2022-07-11T11:40:03Z

Previously the code used skb_set_queue_mapping for management or non-bufferable powersave frames that need to be sent to a different hardware queue. This can confuse AQL, which expects the value to remain the same until the tx status report. The only place that currently uses the altered skb queue mapping is the txwi write function. Change the code to pass the hardware queue id as a function parameter instead. Signed-off-by: Felix Fietkau

mt76: pass original queue id from __mt76_tx_queue_skb to the driver

2022-07-11T11:40:03Z

MT7615 and newer map multiple software tx queues to the hardware id Signed-off-by: Felix Fietkau

Merge tag 'mt76-for-kvalo-2022-05-12' of https://github.com/nbd168/wireless

2022-05-16T10:11:58Z

mt76 patches for 5.19 - tx locking improvements - wireless ethernet dispatch support for flow offload - non-standard VHT MCS10-11 support - fixes - runtime PM improvements - mt7921 AP mode support - mt7921 ipv6 NS offload support

mac80211: extend current rate control tx status API

2022-05-16T08:05:02Z

This patch adds the new struct ieee80211_rate_status and replaces 'struct rate_info *rate' in ieee80211_tx_status with pointer and length annotation. The struct ieee80211_rate_status allows to: (1) receive tx power status feedback for transmit power control (TPC) per packet or packet retry (2) dynamic mapping of wifi chip specific multi-rate retry (mrr) chains with different lengths (3) increase the limit of annotatable rate indices to support IEEE802.11ac rate sets and beyond ieee80211_tx_info, control and status buffer, and ieee80211_tx_rate cannot be used to achieve these goals due to fixed size limitations. Our new struct contains a struct rate_info to annotate the rate that was used, retry count of the rate and tx power. It is intended for all information related to RC and TPC that needs to be passed from driver to mac80211 and its RC/TPC algorithms like Minstrel_HT. It corresponds to one stage in an mrr. Multiple subsequent instances of this struct can be included in struct ieee80211_tx_status via a pointer and a length variable. Those instances can be allocated on-stack. The former reference to a single instance of struct rate_info is replaced with our new annotation. An extension is introduced to struct ieee80211_hw. There are two new members called 'tx_power_levels' and 'max_txpwr_levels_idx' acting as a tx power level table. When a wifi device is registered, the driver shall supply all supported power levels in this list. This allows to support several quirks like differing power steps in power level ranges or alike. TPC can use this for algorithm and thus be designed more abstract instead of handling all possible step widths individually. Further mandatory changes in status.c, mt76 and ath11k drivers due to the removal of 'struct rate_info *rate' are also included. status.c already uses the information in ieee80211_tx_status->rate in radiotap, this is now changed to use ieee80211_rate_status->rate_idx. mt76 driver already uses struct rate_info to pass the tx rate to status path. The new members of the ieee80211_tx_status are set to NULL and 0 because the previously passed rate is not relevant to rate control and accurate information is passed via tx_info->status.rates. For ath11k, the txrate can be passed via this struct because ath11k uses firmware RC and thus the information does not interfere with software RC. Compile-Tested: current wireless-next tree with all flags on Tested-on: Xiaomi 4A Gigabit (MediaTek MT7603E, MT7612E) with OpenWrt Linux 5.10.113 Signed-off-by: Jonas Jelonek Link: https://lore.kernel.org/r/20220509173958.1398201-2-jelonek.jonas@gmail.com Signed-off-by: Johannes Berg