kernel.git/drivers/net/wireless/ralink, branch linux-5.3.y

Revert "rt2800: enable TX_PIN_CFG_LNA_PE_ bits per band"

2019-09-03T13:52:22Z

This reverts commit 9ad3b55654455258a9463384edb40077439d879f. As reported by Sergey: "I got some problem after upgrade kernel to 5.2 version (debian testing linux-image-5.2.0-2-amd64). 5Ghz client stopped to see AP. Some tests with 1metre distance between client-AP: 2.4Ghz -22dBm, for 5Ghz - 53dBm !, for longer distance (8m + walls) 2.4 - 61dBm, 5Ghz not visible." It was identified that rx signal level degradation was caused by 9ad3b5565445 ("rt2800: enable TX_PIN_CFG_LNA_PE_ bits per band"). So revert this commit. Cc: # v5.1+ Reported-and-tested-by: Sergey Maranchuk Signed-off-by: Stanislaw Gruszka Signed-off-by: Kalle Valo

rt2x00: clear up IV's on key removal

2019-09-03T13:51:30Z

After looking at code I realized that my previous fix 95844124385e ("rt2x00: clear IV's on start to fix AP mode regression") was incomplete. We can still have wrong IV's after re-keyring. To fix that, clear up IV's also on key removal. Fixes: 710e6cc1595e ("rt2800: do not nullify initialization vector data") Signed-off-by: Stanislaw Gruszka tested-by: Emil Karlson Signed-off-by: Kalle Valo

rt2x00: clear IV's on start to fix AP mode regression

2019-08-20T13:59:22Z

To do not brake HW restart we should keep initialization vectors data. I assumed that on start the data is already initialized to zeros, but that not true on some scenarios and we should clear it. So add additional flag to check if we are under HW restart and clear IV's data if we are not. Patch fixes AP mode regression. Reported-and-tested-by: Emil Karlson Fixes: 710e6cc1595e ("rt2800: do not nullify initialization vector data") Signed-off-by: Stanislaw Gruszka Signed-off-by: Kalle Valo

rt2x00usb: fix rx queue hang

2019-07-15T17:52:18Z

Since commit ed194d136769 ("usb: core: remove local_irq_save() around ->complete() handler") the handler rt2x00usb_interrupt_rxdone() is not running with interrupts disabled anymore. So this completion handler is not guaranteed to run completely before workqueue processing starts for the same queue entry. Be sure to set all other flags in the entry correctly before marking this entry ready for workqueue processing. This way we cannot miss error conditions that need to be signalled from the completion handler to the worker thread. Note that rt2x00usb_work_rxdone() processes all available entries, not only such for which queue_work() was called. This patch is similar to what commit df71c9cfceea ("rt2x00: fix order of entry flags modification") did for TX processing. This fixes a regression on a RT5370 based wifi stick in AP mode, which suddenly stopped data transmission after some period of heavy load. Also stopping the hanging hostapd resulted in the error message "ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 14 failed to flush". Other operation modes are probably affected as well, this just was the used testcase. Fixes: ed194d136769 ("usb: core: remove local_irq_save() around ->complete() handler") Cc: stable@vger.kernel.org # 4.20+ Signed-off-by: Soeren Moch Acked-by: Stanislaw Gruszka Signed-off-by: Kalle Valo

rt2800: do not enable watchdog by default

2019-06-25T05:10:13Z

Make watchdog disabled by default and add module parameter to enable it. User will have to create file in /etc/modprobe.d/ with options rt2800lib watchdog=1 to enable the watchdog or load "rt2800lib watchdog=1" module manually before loading rt2800{soc,pci,usb} module. Signed-off-by: Stanislaw Gruszka Signed-off-by: Kalle Valo

rt2x00: add restart hw

2019-06-25T05:10:12Z

Add ieee80211_restart_hw() to watchdog and debugfs file for testing if restart works as expected. Signed-off-by: Stanislaw Gruszka Signed-off-by: Kalle Valo

rt2800: do not nullify initialization vector data

2019-06-25T05:10:11Z

If we restart hw we should keep existing IV (initialization vector) otherwise HW encryption will be broken after restart. Also fix some coding style issues on the way. Signed-off-by: Stanislaw Gruszka Signed-off-by: Kalle Valo

rt2800: add pre_reset_hw callback

2019-06-25T05:10:10Z

Add routine to cleanup interfaces data before hw reset as ieee80211_restart_hw() will do setup interfaces again. Signed-off-by: Stanislaw Gruszka Signed-off-by: Kalle Valo

rt2800: initial watchdog implementation

2019-06-25T05:10:09Z

Add watchdog for rt2800 devices. For now it only detect hung and print error. [Note: I verified that printing messages from process context is fine on MT7620 (WT3020) platform that have problem when printk is called from interrupt context]. Signed-off-by: Stanislaw Gruszka Signed-off-by: Kalle Valo

rt2800: add helpers for reading dma done index

2019-06-25T05:10:08Z

For mmio we do not properlly trace dma done Q_INDEX_DMA_DONE index for TX queues. That would require implementing INT_SOURCE_CSR_*_DMA_DONE interrupts, what is rather not worth to do due to adding extra CPU load (small but still somewhat not necessary otherwise). We can just read TX DMA done indexes from registers directly. What will be used by watchdog. Signed-off-by: Stanislaw Gruszka Signed-off-by: Kalle Valo