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path: root/drivers/net/wireless/mediatek/mt76/mt76x02_usb_core.c
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2021-11-24mt76: fix possible pktid leakLorenzo Bianconi
Fix a possible idr pkt-id leak if the packet is dropped on tx side Fixes: bd1e3e7b693c ("mt76: introduce packet_id idr") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Acked-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/a560caffcc24452fb48af53904bbe5c45ea5db93.1637602268.git.lorenzo@kernel.org
2020-12-04mt76: move tx hw data queues in mt76_phyLorenzo Bianconi
Move hw data queues in mt76_phy from mt76_dev since mt7915 supports per phy hw queues in dbdc mode Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-09-24mt76: move pad estimation out of mt76_skb_adjust_padLorenzo Bianconi
Move frame pad computation out of mt76_skb_adjust_pad routine. This is a preliminary patch to introduce sdio tx aggregation. Tested-by: Sean Wang <sean.wang@mediatek.com> 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>
2020-09-24mt76: remove struct mt76_sw_queueFelix Fietkau
All members except for the struct mt76_queue pointer have been removed Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-09-24mt76: rely on AQL for burst size limits on tx queueingFelix Fietkau
Now that AQL works well on all mt76 drivers, completely replace the arbitrary burst sizing and number of bursts logic for tx scheduling. For the short period of time in which AQL does not work well yet, limit each stations to 16 in-flight packets that have no estimated tx time. This should avoid filling the queue if a station connects and queues up a large number of packets before rate control information is available, especially with hardware rate control Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-09-24mt76: remove qid argument to drv->tx_complete_skbFelix Fietkau
It is not needed Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-07-21mt76: mt76u: add mt76_skb_adjust_pad utility routineLorenzo Bianconi
Introduce mt76_skb_adjust_pad to reuse the code adding sdio support to mt7615 driver and remove code duplication. Move 4B header configuration for usb devices out of mt76_skb_adjust_pad Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-02-14mt76: mt76u: introduce mt76u_skb_dma_info routineLorenzo Bianconi
Introduce mt76u_skb_dma_info utility routine in mt76-usb module in order to be reused adding mt7663u 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>
2020-02-14mt76: mt76x02u: do not set NULL beaconsStanislaw Gruszka
With current implementation we do not cleanup beacon memory, so is not needed to call mt76x02_mac_set_beacon() with NULL skb. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-02-14mt76: mt76x02: add channel switch support for usb interfacesMarkus Theil
This patch enables channel switch support on mt76 usb interfaces. Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-02-14mt76: mt76x02: split beaconingMarkus Theil
Sending beacons to the hardware always happens in batches. In order to speed up beacon processing on usb devices, this patch splits out common code an calls it only once. Beacons are sequentially written into the beacon memory area, by tracking its usage with the dev->beacon_data_count. For MBSS support and buffered traffic dev->beacon_data_count is used to create the bypass mask. The code is also adapted for the mmio part of the driver, but should not have any performance implication there. MBSS tests were performed with AVM AC860 USB NIC with temporary support for 5 BSS'. Different combinations of active vifs were created and brought up. Afterwards connection and data transfer was tested for the announced BSS'. Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-02-14mt76: move state from struct mt76_dev to mt76_phyFelix Fietkau
Allows keeping per-wiphy state separate Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-11-20mt76: mt76x02u: update ewma pkt len in mt76x02u_tx_prepare_skbLorenzo Bianconi
Update ewma packet length in mt76x02u_tx_prepare_skb as it is done for pci counterpart in order to properly estimate tx time on current channel Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-11-20mt76: mt76x02: track approximate tx airtime for airtime fairness and surveyFelix Fietkau
Estimate by calculating duration for EWMA packet size + estimated A-MPDU length on tx status events Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-11-20mt76: mt76x02u: move mt76x02u_mac_start in mt76x02-usb moduleLorenzo Bianconi
Unify mt76x02u_mac_start between mt76x2u and mt76x0u since the code is shared between both drivers Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-09-05mt76: switch to SPDX tag instead of verbose boilerplate textRyder Lee
No functional change intended. Add SPDX identifiers to all remaining files in /mt76. Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-07-16kernel: fix typos and some coding style in commentsWeitao Hou
fix lenght to length Link: http://lkml.kernel.org/r/20190521050937.4370-1-houweitaoo@gmail.com Signed-off-by: Weitao Hou <houweitaoo@gmail.com> Acked-by: Kees Cook <keescook@chromium.org> Cc: Colin Ian King <colin.king@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-06-27mt76: mt76x02u: fix sparse warnings: should it be static?Lorenzo Bianconi
Fix following sparse warnings in mt76x02_usb_core.c drivers/net/wireless/mediatek/mt76/mt76x02_usb_core.c:29:6: warning: symbol 'mt76x02u_tx_complete_skb' was not declared. Should it be static? drivers/net/wireless/mediatek/mt76/mt76x02_usb_core.c:37:5: warning: symbol 'mt76x02u_skb_dma_info' was not declared. Should it be static? drivers/net/wireless/mediatek/mt76/mt76x02_usb_core.c:96:52: warning: restricted __le16 degrades to integer drivers/net/wireless/mediatek/mt76/mt76x02_usb_core.c:74:5: warning: symbol 'mt76x02u_tx_prepare_skb' was not declared. Should it be static? drivers/net/wireless/mediatek/mt76/mt76x02_usb_core.c:244:6: warning: symbol 'mt76x02u_init_beacon_config' was not declared. Should it be static? drivers/net/wireless/mediatek/mt76/mt76x02_usb_core.c:262:6: warning: symbol 'mt76x02u_exit_beacon_config' was not declared. Should it be static? Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27mt76: mt76x02: fix tx reordering on rate control probing without a-mpduFelix Fietkau
To avoid aggregating rate control probing packets with other traffic, and to ensure that the probing rate gets used, probing packets get assigned a different internal queueing priority. This causes packets to be transmitted in a different order, which is compensated by the receiver side reordering. However, if A-MPDU is disabled, this reordering can become visible to upper layers on the receiver side. Disable the priority change if A-MPDU is disabled. Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-27mt76: mt76x02: fix tx status reporting issuesFelix Fietkau
When the hardware falls back to lower rates for a transmit attempt, only the first status report will show the number of retries correctly. The frames that follow will report the correct final rate, but number of retries set to 0. This can cause the rate control module to vastly underestimate the number of retransmissions per rate. To fix this, we need to keep track of the initial requested tx rate per packet and pass it to the status information. For frames with tx status requested, this is simple: use the rate configured in info->control.rates[0] as reference. For no-skb tx status information, we have to encode the requested tx rate in the packet id (and make it possible to distinguish it from real packet ids). To do that, reduce the packet id field size by one bit, and use that bit to indicate packet id vs rate. This change also improves reporting by filling the status rate array with rates from first rate to final rate, taking the same steps as the hardware fallback table. This matters in corner cases like MCS8 on HT, where the fallback target is MCS0, not MCS7. Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01mt76: do not enable/disable pre_tbtt_tasklet in scan_start/scan_completeLorenzo Bianconi
Do not enable/disable pre_tbtt_tasklet tasklet in mt76x02_sw_scan/mt76x02_sw_scan_complete since it is already done setting the operating channel. Do run tbtt_tasklet while the device is offchannel Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01mt76: move beacon_mask in mt76_devLorenzo Bianconi
Move beacon_mask in mt76_dev data structure since it is used by all drivers Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01mt76: move beacon_int in mt76_devLorenzo Bianconi
Move beacon_int in mt76_dev data structure since it is used by all drivers Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01mt76: add skb pointer to mt76_tx_infoLorenzo Bianconi
Pass skb pointer to tx_prepare_skb through mt76_tx_info data structure. This is a preliminary patch to properly support dma error path for new chipsets (e.g. 7615) Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01mt76x02: make beacon slots bigger for USBStanislaw Gruszka
Since we sent PS buffered frames via beacon memory we need to make beacon slots bigger. That imply we will also need to decrease number of slots as beacon SRAM memory is limited to 8kB. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01mt76x02u: implement pre TBTT work for USBStanislaw Gruszka
Program beacons data and PS buffered frames on TBTT work for USB. We do not have MT_TXQ_PSD queue available via USB endpoints. The way we can send PS broadcast frames in timely manner before PS stations go sleep again is program them in beacon data area. Hardware do not modify those frames since TXWI is properly configured. mt76x02_mac_set_beacon() already handle this and free no longer used frames. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01mt76x02u: implement beacon_opsStanislaw Gruszka
Add implementation of beacon_ops for USB and exit function to stop the timer if running when device is removed. Still no actual work on pre tbtt event. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01mt76x02: introduce beacon_opsStanislaw Gruszka
Enabling/disableing TBTT and beacon will be diffrent for USB. Introduce beacon_ops to encapsulate that and implement it for MMIO. USB implementation is noop for now. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01mt76x02: add hrtimer for pre TBTT for USBStanislaw Gruszka
Add timer and work for pre TBTT for USB devices. For now code doesn't do anyting useful, just add hrtimer which synchronize with hardware MT_TBTT_TIMER. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01mt76x02: introduce mt76x02_beacon.cStanislaw Gruszka
Move most of beaconing code into separate file and separate beacon initialization for USB and MMIO as pre TBTT implementation for USB will be different. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01mt76: introduce mt76_tx_info data structureLorenzo Bianconi
Add mt76_tx_info as auxiliary data structure to pass values to tx_prepare_skb pointer. This is a preliminary patch to add support for new chipsets (e.g. mt7615) Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01mt76: move mt76x02_insert_hdr_pad in mt76-core moduleLorenzo Bianconi
Move mt76x02_insert_hdr_pad in m76-core and rename it in mt76_insert_hdr_pad in order to be used in mt76_dma_tx_queue_skb. This is a preliminary patch in order to properly support tx dma mapping for new chipsets (e.g. mt7615) Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01mt76: introduce mt76_sw_queue data structureLorenzo Bianconi
Introduce mt76_sw_queue data structure in order to support new chipsets (e.g. mt7615) that have a shared hardware queue for all traffic identifiers. mt76_sw_queue will be used to track outstanding packets Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01mt76: remove mt76_queue dependency from tx_complete_skb function pointerLorenzo Bianconi
Remove mt76_queue dependency from tx_complete_skb function pointer and rely on mt76_tx_qid instead. Remove flush from tx_complete_skb signature. This is a preliminary patch to introduce mt76_sw_queue support Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-05-01mt76: remove mt76_queue dependency from tx_prepare_skb function pointerLorenzo Bianconi
Remove mt76_queue dependency from tx_prepare_skb function pointer and rely on mt76_tx_qid instead. This is a preliminary patch to introduce mt76_sw_queue support Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-03-07mt76x02: fix hdr pointer in write txwi for USBStanislaw Gruszka
Since we add txwi at the begining of skb->data, it no longer point to ieee80211_hdr. This breaks settings TS bit for probe response and beacons. Acked-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-18mt76x02u: remove bogus check and comment paddingStanislaw Gruszka
In mt76x02u_skb_dma_info() pad is always non-zero. Patch removes bogus check and add comments to the function. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-01-17mt76: fix tx status reporting for non-probing framesFelix Fietkau
On MT76x2, the hardware does not report tx status in the FIFO register, if the packet id is 0. Change the allocation of packet IDs to use 0 for no-ack packets, 1 for non-probing packets and 2-255 for packets with tx status requested. Fixes rate control issues Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-11-30mt76: add support for reporting tx status with skbFelix Fietkau
MT76x2/MT76x0 has somewhat unreliable tx status reporting, and for that reason the driver currently does not report per-skb tx ack status at all. This breaks things like client idle polling, which relies on the tx ack status of a transmitted nullfunc frame. This patch adds code to report skb-attached tx status if requested by mac80211 or the rate control module. Since tx status is polled from a simple FIFO register, the code needs to account for the possibility of tx status events getting lost. The code keeps a list of skbs for which tx status is required and passes them to mac80211 once tx status has been filled in and the DMA queue is done with it. If a tx status event is not received after one second, the status rates are cleared, and a succesful ACK is indicated to avoid spurious disassoc during assoc or client polling. Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13mt76: reserve enough room for USB tx skbsStanislaw Gruszka
Reserve enough room for USB skb, so we don not need to check the room every time we send frame. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-13mt76: use mt76x02_dev instead of mt76_dev in mt76x02_mac.cLorenzo Bianconi
Use mt76x02_dev data structure as reference in mt76x02_mac.c instead of mt76_dev Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05mt76: usb: move mt76x02u_tx_complete_skb in mt76x02_usb_core.cLorenzo Bianconi
Move mt76x02u_tx_complete_skb and mt76x02u_remove_dma_hdr since they are used just by usb code Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05mt76: rename mt76x02_util.h in mt76x02.hLorenzo Bianconi
Rename mt76x02_util.h header file in mt76x02.h since now contains all mt76x02 related definitions and not just utility routines declarations Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-05mt76: usb: use mt76x02u_tx_prepare_skb to fill txwiLorenzo Bianconi
Use mt76x02u_tx_prepare_skb routine to fill txwi in mt76x2u and mt76x0u driver and remove duplicated code. Moreover add static qualifier to mt76x02_mac_tx_rate_val and mt76x02_mac_fill_txwi routines Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-10-01mt76: use skb_pad() instead of __skb_pad()Hauke Mehrtens
mt76 uses __skb_pad() with free_on_error set to true, this is the same as calling skb_pad(). This patch does not change any functionality, but it makes it easier to backport this driver in backports, because skb_pad() is also available in older kernel versions. Fixes: b40b15e1521f ("mt76: add usb support to mt76 layer") Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19mt76x02: move TXD/RXD/MCU definitions in mt76x02_dma.hLorenzo Bianconi
Introduce mt76x02_dma.h header file to contain mt76x02 dma related definitions Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-09-19mt76: usb: move mt76u_skb_dma_info in mt76x02_usb_core.cLorenzo Bianconi
Move mt76u_skb_dma_info routine in mt76x02-usb module and rename it in mt76x02u_skb_dma_info. Moreover move mt76x02u_set_txinfo in mt76x02_usb_core.c. This is a preliminary patch to move MT_TXD_INFO, MT_MCU_MSG and MT_RX_FCE_INFO defs in mt76x02-lib module since other chipsets (e.g. mt7603) use different dma definitions Acked-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
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