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path: root/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
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2019-05-21treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13Thomas Gleixner1-12/+1
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details [based] [from] [clk] [highbank] [c] you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 355 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com> Reviewed-by: Steve Winslow <swinslow@gmail.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190519154041.837383322@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25rt2x00: remove last_nostatus_checkStanislaw Gruszka1-1/+0
We do not any longer check txstatus timeout from tasklet, so do not need this optimization. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-04-25rt2x00: do not print error when queue is fullStanislaw Gruszka1-1/+1
For unknown reasons printk() on some context can cause CPU hung on embedded MT7620 AP/router MIPS platforms. What can result on wifi disconnects. This patch move queue full messages to debug level what is consistent with other mac80211 drivers which drop packet silently if tx queue is full. This make MT7620 OpenWRT routers more stable, what was reported by various users. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-04-12rt2x00: do not increment sequence number while re-transmittingVijayakumar Durai1-6/+9
Currently rt2x00 devices retransmit the management frames with incremented sequence number if hardware is assigning the sequence. This is HW bug fixed already for non-QOS data frames, but it should be fixed for management frames except beacon. Without fix retransmitted frames have wrong SN: AlphaNet_e8:fb:36 Vivotek_52:31:51 Authentication, SN=1648, FN=0, Flags=........C Frame is not being retransmitted 1648 1 AlphaNet_e8:fb:36 Vivotek_52:31:51 Authentication, SN=1649, FN=0, Flags=....R...C Frame is being retransmitted 1649 1 AlphaNet_e8:fb:36 Vivotek_52:31:51 Authentication, SN=1650, FN=0, Flags=....R...C Frame is being retransmitted 1650 1 With the fix SN stays correctly the same: 88:6a:e3:e8:f9:a2 8c:f5:a3:88:76:87 Authentication, SN=1450, FN=0, Flags=........C 88:6a:e3:e8:f9:a2 8c:f5:a3:88:76:87 Authentication, SN=1450, FN=0, Flags=....R...C 88:6a:e3:e8:f9:a2 8c:f5:a3:88:76:87 Authentication, SN=1450, FN=0, Flags=....R...C Cc: stable@vger.kernel.org Signed-off-by: Vijayakumar Durai <vijayakumar.durai1@vivint.com> [sgruszka: simplify code, change comments and changelog] Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-10-01rt2x00: do not check for txstatus timeout every time on taskletStanislaw Gruszka1-0/+1
Do not check for tx status timeout everytime we perform txstatus tasklet. Perform check once per half a second. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-10-01rt2800mmio: use txdone/txstatus routines from libStanislaw Gruszka1-0/+1
Use usb txdone/txstatus routines (now in rt2800libc) for mmio devices. Note this also change how we handle INT_SOURCE_CSR_TX_FIFO_STATUS interrupt. Now it is disabled since IRQ routine till end of the txstatus tasklet (the same behaviour like others interrupts). Reason to do not disable this interrupt was not to miss any tx status from 16 entries FIFO register. Now, since we check for tx status timeout, we can allow to miss some tx statuses. However this will be improved in further patch where I also implement read status FIFO register in the tasklet. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-4/+3
Filling in the padding slot in the bpf structure as a bug fix in 'ne' overlapped with actually using that padding area for something in 'net-next'. Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-29Revert "rt2800: use TXOP_BACKOFF for probe frames"Stanislaw Gruszka1-4/+3
This reverts commit fb47ada8dc3c30c8e7b415da155742b49536c61e. In some situations when we set TXOP_BACKOFF, the probe frame is not sent at all. What it worse then sending probe frame as part of AMPDU and can degrade 11n performance to 11g rates. Cc: stable@vger.kernel.org Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-04rt2x00: check against flushing empty queueStanislaw Gruszka1-0/+2
We have check if queue is not empty when start flushing queues on by mac80211 callback, but we also can start flushing queues by internal driver calls. So move check into rt2x00queue_flush_queue() to assure we do not flush empty queue anytime. Additionally add warning if we start to kick empty queue as in such situation we set wrong index in the HW queue, what can confuse the HW and have various negative consequences. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-08rt2x00: pause almost full queue earlyStanislaw Gruszka1-0/+8
Do not drop &queue->tx_lock and acquire it again to pause queue when available entries are below the threshold. Patch should mitigate problem of frequently printed errors: "Error - Dropping frame due to full tx queue" Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Tested-by: Enrico Mioso@gmail.com Tested-by: Enrico Mioso <mrkiko.rs@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-08rt2x00: Delete an error message for a failed memory allocation in ↵Markus Elfring1-3/+1
rt2x00queue_allocate() Omit an extra message for a memory allocation failure in this function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Acked-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-03-08rt2800: use TXOP_BACKOFF for probe framesStanislaw Gruszka1-3/+4
Even if we do not set AMPDU bit in TXWI, device still can aggregate frame and send it with rate not corresponding to requested. That mean we can do not sent probe frames with requested rate. To prevent that use TXOP_BACKOFF for probe frames. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-02-08rt2x00: remove queue_entry from skbdescStanislaw Gruszka1-3/+0
queue_entry field of skbdesc is not read any more, remove it to allow skbdesc contain other data. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-02-08rt2x00: call entry directly in rt2x00_dump_frameStanislaw Gruszka1-1/+1
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-12-30rt2800: don't set ht parameters for non-aggregated framesStanislaw Gruszka1-6/+6
Do not set ampdu_density and ba_size for frames without AMPDU bit i.e. frames that will not be aggregated to AMPDU. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-11-18rt2x00: move under ralink vendor directoryKalle Valo1-0/+1290
Part of reorganising wireless drivers directory and Kconfig. Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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