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Please, take a look at the cover letter for more details). Signed-off-by: Viktor Barna --- .../net/wireless/celeno/cl8k/rx/rx_filter.c | 88 +++++++++++++++++++ 1 file changed, 88 insertions(+) create mode 100644 drivers/net/wireless/celeno/cl8k/rx/rx_filter.c diff --git a/drivers/net/wireless/celeno/cl8k/rx/rx_filter.c b/drivers/net/= wireless/celeno/cl8k/rx/rx_filter.c new file mode 100644 index 000000000000..95415ec6aad0 --- /dev/null +++ b/drivers/net/wireless/celeno/cl8k/rx/rx_filter.c @@ -0,0 +1,88 @@ +// SPDX-License-Identifier: MIT +/* Copyright(c) 2019-2021, Celeno Communications Ltd. */ + +#include "rx/rx_filter.h" +#include "fw/msg_tx.h" +#include "ieee80211_i.h" + +u32 cl_rx_filter_update_flags(struct cl_hw *cl_hw, u32 filter) +{ + u32 rx_filter =3D 0; + + if (filter & FIF_ALLMULTI) + rx_filter |=3D RX_CNTRL_ACCEPT_MULTICAST_BIT; + + if (filter & (FIF_FCSFAIL | FIF_PLCPFAIL)) + rx_filter |=3D RX_CNTRL_ACCEPT_ERROR_FRAMES_BIT; + + if (filter & FIF_BCN_PRBRESP_PROMISC) + rx_filter |=3D RX_CNTRL_ACCEPT_OTHER_BSSID_BIT; + + if (filter & FIF_CONTROL) + rx_filter |=3D RX_CNTRL_ACCEPT_OTHER_CNTRL_FRAMES_BIT | + RX_CNTRL_ACCEPT_CF_END_BIT | + RX_CNTRL_ACCEPT_ACK_BIT | + RX_CNTRL_ACCEPT_CTS_BIT | + RX_CNTRL_ACCEPT_RTS_BIT | + RX_CNTRL_ACCEPT_BA_BIT | RX_CNTRL_ACCEPT_BAR_B= IT; + + if (filter & FIF_OTHER_BSS) + rx_filter |=3D RX_CNTRL_ACCEPT_OTHER_BSSID_BIT; + + if (filter & FIF_PSPOLL) + rx_filter |=3D RX_CNTRL_ACCEPT_PS_POLL_BIT; + + if (filter & FIF_PROBE_REQ) + rx_filter |=3D RX_CNTRL_ACCEPT_PROBE_REQ_BIT; + + /* Add the filter flags that are set by default and cannot be chang= ed here */ + rx_filter |=3D CL_MAC80211_NOT_CHANGEABLE; + + if (ieee80211_hw_check(cl_hw->hw, AMPDU_AGGREGATION)) + rx_filter |=3D RX_CNTRL_ACCEPT_BA_BIT; + + /* + * work around for HW bug (AD 14672) + * In order for the response frames to BAR and RTS be with correct + * power they should always be accepted and found in the KSR + */ + rx_filter |=3D RX_CNTRL_ACCEPT_BAR_BIT | RX_CNTRL_ACCEPT_RTS_BIT; + + return rx_filter; +} + +static u32 cl_filter_get_flags(struct net_device *dev) +{ + struct ieee80211_sub_if_data *sdata =3D IEEE80211_DEV_TO_SUB_IF(dev= ); + + return sdata->local->filter_flags; +} + +void cl_rx_filter_restore_flags(struct cl_hw *cl_hw) +{ + struct net_device *dev =3D cl_vif_get_first_net_device(cl_hw); + u32 filter =3D 0; + + if (!dev) + return; + + filter =3D cl_filter_get_flags(dev); + cl_dbg_verbose(cl_hw, "Restoring filter flags to 0x%x\n", filter); + cl_msg_tx_set_filter(cl_hw, filter, false); +} + +void cl_rx_filter_set_promiscuous_off(unsigned long data) +{ + struct cl_hw *cl_hw =3D (struct cl_hw *)data; + + cl_rx_filter_restore_flags(cl_hw); +} + +void cl_rx_filter_set_promiscuous(struct cl_hw *cl_hw) +{ + u32 filter =3D ~(FIF_FCSFAIL | FIF_PLCPFAIL | (1 << 31)); + + cl_dbg_verbose(cl_hw, "set promiscuous mode 0x%x\n", filter); + cl_msg_tx_set_filter(cl_hw, filter, false); +} + -- 2.30.0 ________________________________ The information transmitted is intended only for the person or entity to wh= ich it is addressed and may contain confidential and/or privileged material= . 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