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path: root/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c
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2019-04-27rt2x00: do not increment sequence number while re-transmittingVijayakumar Durai1-10/+0
commit 746ba11f170603bf1eaade817553a6c2e9135bbe upstream. 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-12rt2x00: do not pause queue unconditionally on error pathStanislaw Gruszka1-8/+14
[ Upstream commit 6dd80efd75ce7c2dbd9f117cf585ee2b33a42ee1 ] Pausing queue without checking threshold is racy with txdone path. Moreover we do not need pause queue on any error, but only if queue is full - in case when we send RTS frame ( other cases of almost full queue are already handled in rt2x00queue_write_tx_frame() ). Patch fixes of theoretically possible problem of pausing empty queue. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Tested-by: Enrico Mioso <mrkiko.rs@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-17rt2x00: do not flush empty queueStanislaw Gruszka1-1/+2
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-12-30rt2x00: add mutex to synchronize config and link tunerStanislaw Gruszka1-0/+5
Do not perform mac80211 config and link_tuner at the same time, this can possibly result in wrong RF or BBP configuration. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-12-30rt2800: set MAX_PSDU len according to remote STAs capabilitiesStanislaw Gruszka1-2/+1
MAX_LEN_CFG_MAX_PSDU specify maximum transmitted by HW AMPDU length (0 - 8kB, 1 - 16kB, 2 - 32kB, 3 - 64kB). Set this option according to remote stations capabilities (based on HT ampdu_factor). However limit the value based our hardware TX capabilities as some chips can not send more than 16kB (factor 1). Limit for all chips is currently 32kB (factor 2), but perhaps for some chips this could be increased to 64kB by setting drv_data->max_psdu to 3. Since MAX_LEN_CFG_MAX_PSDU is global setting, on multi stations modes (AP, IBSS, mesh) we limit according to less capable remote STA. We can not set bigger value to speed up communication with some stations and do not break communication with slow stations. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-01-25rt2x00: fix monitor mode regressionEli Cooper1-5/+0
Since commit df1404650ccb ("mac80211: remove support for IFF_PROMISC") monitor mode for rt2x00 has been made effectively useless because the hardware filter is configured to drop packets whose intended recipient is not the device, regardless of the presence of monitor mode interfaces. This patch fixes this regression by adding explicit monitor mode support, and by configuring the hardware filter accordingly. Signed-off-by: Eli Cooper <elicooper@gmx.com> Acked-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-11-18rt2x00: move under ralink vendor directoryKalle Valo1-0/+846
Part of reorganising wireless drivers directory and Kconfig. Signed-off-by: Kalle Valo <kvalo@codeaurora.org>