mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-11-01 17:08:10 +00:00
Code Issues Releases Wiki Activity

wifi: iwlwifi: mvm: rxmq: refactor mac80211 rx_status setting

Browse source 
There's a bunch of duplicated code in the normal data RX and
the no-data RX paths, refactor that.

Note that we're evidently not implementing the 6 GHz band in
the no-data path correctly, need to fix that in firmware
first. Also, we were setting the NSS differently, keep doing
that, but just override the previous values.

Note also that we used to drop frames with bad rate data, to
simplify that just report rate 0 and continue.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20220906161827.a81580d5e769.I3ee7a1fe1adf8684c48713dbbdc2cbc60bd24cd1@changeid
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
This commit is contained in:
Johannes Berg 2022-09-06 16:42:07 +03:00 committed by Gregory Greenman
parent eab9ebfb7e
commit f1490546be
1 changed files with 165 additions and 191 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

356
drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
View file

@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
/*
* Copyright (C) 2012-2014, 2018-2021 Intel Corporation
* Copyright (C) 2012-2014, 2018-2022 Intel Corporation
* Copyright (C) 2013-2015 Intel Mobile Communications GmbH
* Copyright (C) 2015-2017 Intel Deutschland GmbH
*/
@ -1191,16 +1191,22 @@ struct iwl_mvm_rx_phy_data {
enum iwl_rx_phy_info_type info_type;
__le32 d0, d1, d2, d3;
__le16 d4;
u32 rate_n_flags;
u32 gp2_on_air_rise;
u16 phy_info;
u8 energy_a, energy_b;
u8 channel;
};
static void iwl_mvm_decode_he_mu_ext(struct iwl_mvm *mvm,
struct iwl_mvm_rx_phy_data *phy_data,
u32 rate_n_flags,
struct ieee80211_radiotap_he_mu *he_mu)
{
u32 phy_data2 = le32_to_cpu(phy_data->d2);
u32 phy_data3 = le32_to_cpu(phy_data->d3);
u16 phy_data4 = le16_to_cpu(phy_data->d4);
u32 rate_n_flags = phy_data->rate_n_flags;
if (FIELD_GET(IWL_RX_PHY_DATA4_HE_MU_EXT_CH1_CRC_OK, phy_data4)) {
he_mu->flags1 |=
@ -1246,7 +1252,6 @@ static void iwl_mvm_decode_he_mu_ext(struct iwl_mvm *mvm,
static void
iwl_mvm_decode_he_phy_ru_alloc(struct iwl_mvm_rx_phy_data *phy_data,
u32 rate_n_flags,
struct ieee80211_radiotap_he *he,
struct ieee80211_radiotap_he_mu *he_mu,
struct ieee80211_rx_status *rx_status)
@ -1260,6 +1265,7 @@ iwl_mvm_decode_he_phy_ru_alloc(struct iwl_mvm_rx_phy_data *phy_data,
* the TSF/timers are not be transmitted in HE-MU.
*/
u8 ru = le32_get_bits(phy_data->d1, IWL_RX_PHY_DATA1_HE_RU_ALLOC_MASK);
u32 rate_n_flags = phy_data->rate_n_flags;
u32 he_type = rate_n_flags & RATE_MCS_HE_TYPE_MSK_V1;
u8 offs = 0;
@ -1331,7 +1337,7 @@ static void iwl_mvm_decode_he_phy_data(struct iwl_mvm *mvm,
struct ieee80211_radiotap_he *he,
struct ieee80211_radiotap_he_mu *he_mu,
struct ieee80211_rx_status *rx_status,
u32 rate_n_flags, int queue)
int queue)
{
switch (phy_data->info_type) {
case IWL_RX_PHY_INFO_TYPE_NONE:
@ -1430,7 +1436,7 @@ static void iwl_mvm_decode_he_phy_data(struct iwl_mvm *mvm,
le16_encode_bits(le16_get_bits(phy_data->d4,
IWL_RX_PHY_DATA4_HE_MU_EXT_PREAMBLE_PUNC_TYPE_MASK),
IEEE80211_RADIOTAP_HE_MU_FLAGS2_PUNC_FROM_SIG_A_BW);
iwl_mvm_decode_he_mu_ext(mvm, phy_data, rate_n_flags, he_mu);
iwl_mvm_decode_he_mu_ext(mvm, phy_data, he_mu);
fallthrough;
case IWL_RX_PHY_INFO_TYPE_HE_MU:
he_mu->flags2 |=
@ -1444,8 +1450,7 @@ static void iwl_mvm_decode_he_phy_data(struct iwl_mvm *mvm,
fallthrough;
case IWL_RX_PHY_INFO_TYPE_HE_TB:
case IWL_RX_PHY_INFO_TYPE_HE_TB_EXT:
iwl_mvm_decode_he_phy_ru_alloc(phy_data, rate_n_flags,
he, he_mu, rx_status);
iwl_mvm_decode_he_phy_ru_alloc(phy_data, he, he_mu, rx_status);
break;
case IWL_RX_PHY_INFO_TYPE_HE_SU:
he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_BEAM_CHANGE_KNOWN);
@ -1461,11 +1466,12 @@ static void iwl_mvm_decode_he_phy_data(struct iwl_mvm *mvm,
static void iwl_mvm_rx_he(struct iwl_mvm *mvm, struct sk_buff *skb,
struct iwl_mvm_rx_phy_data *phy_data,
u32 rate_n_flags, u16 phy_info, int queue)
int queue)
{
struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb);
struct ieee80211_radiotap_he *he = NULL;
struct ieee80211_radiotap_he_mu *he_mu = NULL;
u32 rate_n_flags = phy_data->rate_n_flags;
u32 he_type = rate_n_flags & RATE_MCS_HE_TYPE_MSK;
u8 stbc, ltf;
static const struct ieee80211_radiotap_he known = {
@ -1484,6 +1490,7 @@ static void iwl_mvm_rx_he(struct iwl_mvm *mvm, struct sk_buff *skb,
.flags2 = cpu_to_le16(IEEE80211_RADIOTAP_HE_MU_FLAGS2_PUNC_FROM_SIG_A_BW_KNOWN |
IEEE80211_RADIOTAP_HE_MU_FLAGS2_BW_FROM_SIG_A_BW_KNOWN),
};
u16 phy_info = phy_data->phy_info;
he = skb_put_data(skb, &known, sizeof(known));
rx_status->flag |= RX_FLAG_RADIOTAP_HE;
@ -1504,7 +1511,7 @@ static void iwl_mvm_rx_he(struct iwl_mvm *mvm, struct sk_buff *skb,
if (phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD)
iwl_mvm_decode_he_phy_data(mvm, phy_data, he, he_mu, rx_status,
rate_n_flags, queue);
queue);
/* update aggregation data for monitor sake on default queue */
if (!queue && (phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD) &&
@ -1661,6 +1668,102 @@ static void iwl_mvm_rx_get_sta_block_tx(void *data, struct ieee80211_sta *sta)
rx_sta_csa->all_sta_unblocked = false;
}
/*
* Note: requires also rx_status->band to be prefilled, as well
* as phy_data (apart from phy_data->info_type)
*/
static void iwl_mvm_rx_fill_status(struct iwl_mvm *mvm,
struct sk_buff *skb,
struct iwl_mvm_rx_phy_data *phy_data,
int queue)
{
struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb);
u32 rate_n_flags = phy_data->rate_n_flags;
u8 stbc = u32_get_bits(rate_n_flags, RATE_MCS_STBC_MSK);
u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK;
bool is_sgi;
phy_data->info_type = IWL_RX_PHY_INFO_TYPE_NONE;
if (phy_data->phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD)
phy_data->info_type =
le32_get_bits(phy_data->d1,
IWL_RX_PHY_DATA1_INFO_TYPE_MASK);
/* This may be overridden by iwl_mvm_rx_he() to HE_RU */
switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) {
case RATE_MCS_CHAN_WIDTH_20:
break;
case RATE_MCS_CHAN_WIDTH_40:
rx_status->bw = RATE_INFO_BW_40;
break;
case RATE_MCS_CHAN_WIDTH_80:
rx_status->bw = RATE_INFO_BW_80;
break;
case RATE_MCS_CHAN_WIDTH_160:
rx_status->bw = RATE_INFO_BW_160;
break;
}
/* must be before L-SIG data */
if (format == RATE_MCS_HE_MSK)
iwl_mvm_rx_he(mvm, skb, phy_data, queue);
iwl_mvm_decode_lsig(skb, phy_data);
rx_status->device_timestamp = phy_data->gp2_on_air_rise;
rx_status->freq = ieee80211_channel_to_frequency(phy_data->channel,
rx_status->band);
iwl_mvm_get_signal_strength(mvm, rx_status, rate_n_flags,
phy_data->energy_a, phy_data->energy_b);
if (unlikely(mvm->monitor_on))
iwl_mvm_add_rtap_sniffer_config(mvm, skb);
is_sgi = format == RATE_MCS_HE_MSK ?
iwl_he_is_sgi(rate_n_flags) :
rate_n_flags & RATE_MCS_SGI_MSK;
if (!(format == RATE_MCS_CCK_MSK) && is_sgi)
rx_status->enc_flags |= RX_ENC_FLAG_SHORT_GI;
if (rate_n_flags & RATE_MCS_LDPC_MSK)
rx_status->enc_flags |= RX_ENC_FLAG_LDPC;
switch (format) {
case RATE_MCS_HT_MSK:
rx_status->encoding = RX_ENC_HT;
rx_status->rate_idx = RATE_HT_MCS_INDEX(rate_n_flags);
rx_status->enc_flags |= stbc << RX_ENC_FLAG_STBC_SHIFT;
break;
case RATE_MCS_VHT_MSK:
rx_status->nss =
((rate_n_flags & RATE_MCS_NSS_MSK) >>
RATE_MCS_NSS_POS) + 1;
rx_status->rate_idx = rate_n_flags & RATE_MCS_CODE_MSK;
rx_status->encoding = RX_ENC_VHT;
rx_status->enc_flags |= stbc << RX_ENC_FLAG_STBC_SHIFT;
if (rate_n_flags & RATE_MCS_BF_MSK)
rx_status->enc_flags |= RX_ENC_FLAG_BF;
break;
case RATE_MCS_HE_MSK:
/* handled above */
break;
default: {
int rate = iwl_mvm_legacy_hw_idx_to_mac80211_idx(rate_n_flags,
rx_status->band);
rx_status->rate_idx = rate;
if (WARN_ONCE(rate < 0 || rate > 0xFF,
"Invalid rate flags 0x%x, band %d,\n",
rate_n_flags, rx_status->band))
rx_status->rate_idx = 0;
break;
}
}
}
void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi,
struct iwl_rx_cmd_buffer *rxb, int queue)
{
@ -1670,17 +1773,12 @@ void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi,
struct ieee80211_hdr *hdr;
u32 len;
u32 pkt_len = iwl_rx_packet_payload_len(pkt);
u32 rate_n_flags, gp2_on_air_rise;
u16 phy_info;
struct ieee80211_sta *sta = NULL;
struct sk_buff *skb;
u8 crypt_len = 0, channel, energy_a, energy_b;
u8 crypt_len = 0;
size_t desc_size;
struct iwl_mvm_rx_phy_data phy_data = {
.info_type = IWL_RX_PHY_INFO_TYPE_NONE,
};
struct iwl_mvm_rx_phy_data phy_data = {};
u32 format;
bool is_sgi;
if (unlikely(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)))
return;
@ -1696,35 +1794,37 @@ void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi,
}
if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) {
rate_n_flags = le32_to_cpu(desc->v3.rate_n_flags);
channel = desc->v3.channel;
gp2_on_air_rise = le32_to_cpu(desc->v3.gp2_on_air_rise);
energy_a = desc->v3.energy_a;
energy_b = desc->v3.energy_b;
phy_data.rate_n_flags = le32_to_cpu(desc->v3.rate_n_flags);
phy_data.channel = desc->v3.channel;
phy_data.gp2_on_air_rise = le32_to_cpu(desc->v3.gp2_on_air_rise);
phy_data.energy_a = desc->v3.energy_a;
phy_data.energy_b = desc->v3.energy_b;
phy_data.d0 = desc->v3.phy_data0;
phy_data.d1 = desc->v3.phy_data1;
phy_data.d2 = desc->v3.phy_data2;
phy_data.d3 = desc->v3.phy_data3;
} else {
rate_n_flags = le32_to_cpu(desc->v1.rate_n_flags);
channel = desc->v1.channel;
gp2_on_air_rise = le32_to_cpu(desc->v1.gp2_on_air_rise);
energy_a = desc->v1.energy_a;
energy_b = desc->v1.energy_b;
phy_data.rate_n_flags = le32_to_cpu(desc->v1.rate_n_flags);
phy_data.channel = desc->v1.channel;
phy_data.gp2_on_air_rise = le32_to_cpu(desc->v1.gp2_on_air_rise);
phy_data.energy_a = desc->v1.energy_a;
phy_data.energy_b = desc->v1.energy_b;
phy_data.d0 = desc->v1.phy_data0;
phy_data.d1 = desc->v1.phy_data1;
phy_data.d2 = desc->v1.phy_data2;
phy_data.d3 = desc->v1.phy_data3;
}
if (iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP,
REPLY_RX_MPDU_CMD, 0) < 4) {
rate_n_flags = iwl_new_rate_from_v1(rate_n_flags);
phy_data.rate_n_flags = iwl_new_rate_from_v1(phy_data.rate_n_flags);
IWL_DEBUG_DROP(mvm, "Got old format rate, converting. New rate: 0x%x\n",
rate_n_flags);
phy_data.rate_n_flags);
}
format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK;
format = phy_data.rate_n_flags & RATE_MCS_MOD_TYPE_MSK;
len = le16_to_cpu(desc->mpdu_len);
@ -1733,14 +1833,9 @@ void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi,
return;
}
phy_info = le16_to_cpu(desc->phy_info);
phy_data.phy_info = le16_to_cpu(desc->phy_info);
phy_data.d4 = desc->phy_data4;
if (phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD)
phy_data.info_type =
le32_get_bits(phy_data.d1,
IWL_RX_PHY_DATA1_INFO_TYPE_MASK);
hdr = (void *)(pkt->data + desc_size);
/* Dont use dev_alloc_skb(), we'll have enough headroom once
* ieee80211_hdr pulled.
@ -1763,27 +1858,6 @@ void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi,
rx_status = IEEE80211_SKB_RXCB(skb);
/* This may be overridden by iwl_mvm_rx_he() to HE_RU */
switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) {
case RATE_MCS_CHAN_WIDTH_20:
break;
case RATE_MCS_CHAN_WIDTH_40:
rx_status->bw = RATE_INFO_BW_40;
break;
case RATE_MCS_CHAN_WIDTH_80:
rx_status->bw = RATE_INFO_BW_80;
break;
case RATE_MCS_CHAN_WIDTH_160:
rx_status->bw = RATE_INFO_BW_160;
break;
}
if (format == RATE_MCS_HE_MSK)
iwl_mvm_rx_he(mvm, skb, &phy_data, rate_n_flags,
phy_info, queue);
iwl_mvm_decode_lsig(skb, &phy_data);
/*
* Keep packets with CRC errors (and with overrun) for monitor mode
* (otherwise the firmware discards them) but mark them as bad.
@ -1794,12 +1868,13 @@ void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi,
le32_to_cpu(desc->status));
rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
}
/* set the preamble flag if appropriate */
if (format == RATE_MCS_CCK_MSK &&
phy_info & IWL_RX_MPDU_PHY_SHORT_PREAMBLE)
phy_data.phy_info & IWL_RX_MPDU_PHY_SHORT_PREAMBLE)
rx_status->enc_flags |= RX_ENC_FLAG_SHORTPRE;
if (likely(!(phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD))) {
if (likely(!(phy_data.phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD))) {
u64 tsf_on_air_rise;
if (mvm->trans->trans_cfg->device_family >=
@ -1813,24 +1888,20 @@ void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi,
rx_status->flag |= RX_FLAG_MACTIME_PLCP_START;
}
rx_status->device_timestamp = gp2_on_air_rise;
if (iwl_mvm_is_band_in_rx_supported(mvm)) {
u8 band = BAND_IN_RX_STATUS(desc->mac_phy_idx);
rx_status->band = iwl_mvm_nl80211_band_from_rx_msdu(band);
} else {
rx_status->band = channel > 14 ? NL80211_BAND_5GHZ :
rx_status->band = phy_data.channel > 14 ? NL80211_BAND_5GHZ :
NL80211_BAND_2GHZ;
}
rx_status->freq = ieee80211_channel_to_frequency(channel,
rx_status->band);
iwl_mvm_get_signal_strength(mvm, rx_status, rate_n_flags, energy_a,
energy_b);
/* update aggregation data for monitor sake on default queue */
if (!queue && (phy_info & IWL_RX_MPDU_PHY_AMPDU)) {
bool toggle_bit = phy_info & IWL_RX_MPDU_PHY_AMPDU_TOGGLE;
if (!queue && (phy_data.phy_info & IWL_RX_MPDU_PHY_AMPDU)) {
bool toggle_bit;
toggle_bit = phy_data.phy_info & IWL_RX_MPDU_PHY_AMPDU_TOGGLE;
rx_status->flag |= RX_FLAG_AMPDU_DETAILS;
/*
* Toggle is switched whenever new aggregation starts. Make
@ -1846,9 +1917,6 @@ void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi,
rx_status->ampdu_reference = mvm->ampdu_ref;
}
if (unlikely(mvm->monitor_on))
iwl_mvm_add_rtap_sniffer_config(mvm, skb);
rcu_read_lock();
if (desc->status & cpu_to_le32(IWL_RX_MPDU_STATUS_SRC_STA_FOUND)) {
@ -1867,13 +1935,15 @@ void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi,
sta = ieee80211_find_sta_by_ifaddr(mvm->hw, hdr->addr2, NULL);
}
if (iwl_mvm_rx_crypto(mvm, sta, hdr, rx_status, phy_info, desc,
if (iwl_mvm_rx_crypto(mvm, sta, hdr, rx_status, phy_data.phy_info, desc,
le32_to_cpu(pkt->len_n_flags), queue,
&crypt_len)) {
kfree_skb(skb);
goto out;
}
iwl_mvm_rx_fill_status(mvm, skb, &phy_data, queue);
if (sta) {
struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
struct ieee80211_vif *tx_blocked_vif =
@ -1971,43 +2041,6 @@ void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi,
}
}
is_sgi = format == RATE_MCS_HE_MSK ?
iwl_he_is_sgi(rate_n_flags) :
rate_n_flags & RATE_MCS_SGI_MSK;
if (!(format == RATE_MCS_CCK_MSK) && is_sgi)
rx_status->enc_flags |= RX_ENC_FLAG_SHORT_GI;
if (rate_n_flags & RATE_MCS_LDPC_MSK)
rx_status->enc_flags |= RX_ENC_FLAG_LDPC;
if (format == RATE_MCS_HT_MSK) {
u8 stbc = (rate_n_flags & RATE_MCS_STBC_MSK) >>
RATE_MCS_STBC_POS;
rx_status->encoding = RX_ENC_HT;
rx_status->rate_idx = RATE_HT_MCS_INDEX(rate_n_flags);
rx_status->enc_flags |= stbc << RX_ENC_FLAG_STBC_SHIFT;
} else if (format == RATE_MCS_VHT_MSK) {
u8 stbc = (rate_n_flags & RATE_MCS_STBC_MSK) >>
RATE_MCS_STBC_POS;
rx_status->nss = ((rate_n_flags & RATE_MCS_NSS_MSK) >>
RATE_MCS_NSS_POS) + 1;
rx_status->rate_idx = rate_n_flags & RATE_MCS_CODE_MSK;
rx_status->encoding = RX_ENC_VHT;
rx_status->enc_flags |= stbc << RX_ENC_FLAG_STBC_SHIFT;
if (rate_n_flags & RATE_MCS_BF_MSK)
rx_status->enc_flags |= RX_ENC_FLAG_BF;
} else if (!(format == RATE_MCS_HE_MSK)) {
int rate = iwl_mvm_legacy_hw_idx_to_mac80211_idx(rate_n_flags,
rx_status->band);
if (WARN(rate < 0 || rate > 0xFF,
"Invalid rate flags 0x%x, band %d,\n",
rate_n_flags, rx_status->band)) {
kfree_skb(skb);
goto out;
}
rx_status->rate_idx = rate;
}
/* management stuff on default queue */
if (!queue) {
if (unlikely((ieee80211_is_beacon(hdr->frame_control) ||
@ -2039,32 +2072,32 @@ void iwl_mvm_rx_monitor_no_data(struct iwl_mvm *mvm, struct napi_struct *napi,
struct ieee80211_rx_status *rx_status;
struct iwl_rx_packet *pkt = rxb_addr(rxb);
struct iwl_rx_no_data *desc = (void *)pkt->data;
u32 rate_n_flags = le32_to_cpu(desc->rate);
u32 gp2_on_air_rise = le32_to_cpu(desc->on_air_rise_time);
u32 rssi = le32_to_cpu(desc->rssi);
u32 info_type = le32_to_cpu(desc->info) & RX_NO_DATA_INFO_TYPE_MSK;
u16 phy_info = IWL_RX_MPDU_PHY_TSF_OVERLOAD;
struct ieee80211_sta *sta = NULL;
struct sk_buff *skb;
u8 channel, energy_a, energy_b;
u32 format;
struct iwl_mvm_rx_phy_data phy_data = {
.info_type = le32_get_bits(desc->phy_info[1],
IWL_RX_PHY_DATA1_INFO_TYPE_MASK),
.d0 = desc->phy_info[0],
.d1 = desc->phy_info[1],
.phy_info = IWL_RX_MPDU_PHY_TSF_OVERLOAD,
.gp2_on_air_rise = le32_to_cpu(desc->on_air_rise_time),
.rate_n_flags = le32_to_cpu(desc->rate),
.energy_a = u32_get_bits(rssi, RX_NO_DATA_CHAIN_A_MSK),
.energy_b = u32_get_bits(rssi, RX_NO_DATA_CHAIN_B_MSK),
.channel = u32_get_bits(rssi, RX_NO_DATA_CHANNEL_MSK),
};
bool is_sgi;
u32 format;
if (iwl_fw_lookup_notif_ver(mvm->fw, DATA_PATH_GROUP,
RX_NO_DATA_NOTIF, 0) < 2) {
IWL_DEBUG_DROP(mvm, "Got an old rate format. Old rate: 0x%x\n",
rate_n_flags);
rate_n_flags = iwl_new_rate_from_v1(rate_n_flags);
phy_data.rate_n_flags);
phy_data.rate_n_flags = iwl_new_rate_from_v1(phy_data.rate_n_flags);
IWL_DEBUG_DROP(mvm, " Rate after conversion to the new format: 0x%x\n",
rate_n_flags);
phy_data.rate_n_flags);
}
format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK;
format = phy_data.rate_n_flags & RATE_MCS_MOD_TYPE_MSK;
if (unlikely(iwl_rx_packet_payload_len(pkt) < sizeof(*desc)))
return;
@ -2072,10 +2105,6 @@ void iwl_mvm_rx_monitor_no_data(struct iwl_mvm *mvm, struct napi_struct *napi,
if (unlikely(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)))
return;
energy_a = (rssi & RX_NO_DATA_CHAIN_A_MSK) >> RX_NO_DATA_CHAIN_A_POS;
energy_b = (rssi & RX_NO_DATA_CHAIN_B_MSK) >> RX_NO_DATA_CHAIN_B_POS;
channel = (rssi & RX_NO_DATA_CHANNEL_MSK) >> RX_NO_DATA_CHANNEL_POS;
/* Dont use dev_alloc_skb(), we'll have enough headroom once
* ieee80211_hdr pulled.
*/
@ -2106,86 +2135,31 @@ void iwl_mvm_rx_monitor_no_data(struct iwl_mvm *mvm, struct napi_struct *napi,
break;
}
/* This may be overridden by iwl_mvm_rx_he() to HE_RU */
switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) {
case RATE_MCS_CHAN_WIDTH_20:
break;
case RATE_MCS_CHAN_WIDTH_40:
rx_status->bw = RATE_INFO_BW_40;
break;
case RATE_MCS_CHAN_WIDTH_80:
rx_status->bw = RATE_INFO_BW_80;
break;
case RATE_MCS_CHAN_WIDTH_160:
rx_status->bw = RATE_INFO_BW_160;
break;
}
if (format == RATE_MCS_HE_MSK)
iwl_mvm_rx_he(mvm, skb, &phy_data, rate_n_flags,
phy_info, queue);
iwl_mvm_decode_lsig(skb, &phy_data);
rx_status->device_timestamp = gp2_on_air_rise;
rx_status->band = channel > 14 ? NL80211_BAND_5GHZ :
rx_status->band = phy_data.channel > 14 ? NL80211_BAND_5GHZ :
NL80211_BAND_2GHZ;
rx_status->freq = ieee80211_channel_to_frequency(channel,
rx_status->band);
iwl_mvm_get_signal_strength(mvm, rx_status, rate_n_flags, energy_a,
energy_b);
rcu_read_lock();
iwl_mvm_rx_fill_status(mvm, skb, &phy_data, queue);
is_sgi = format == RATE_MCS_HE_MSK ?
iwl_he_is_sgi(rate_n_flags) :
rate_n_flags & RATE_MCS_SGI_MSK;
if (!(format == RATE_MCS_CCK_MSK) && is_sgi)
rx_status->enc_flags |= RX_ENC_FLAG_SHORT_GI;
if (rate_n_flags & RATE_MCS_LDPC_MSK)
rx_status->enc_flags |= RX_ENC_FLAG_LDPC;
if (format == RATE_MCS_HT_MSK) {
u8 stbc = (rate_n_flags & RATE_MCS_STBC_MSK) >>
RATE_MCS_STBC_POS;
rx_status->encoding = RX_ENC_HT;
rx_status->rate_idx = RATE_HT_MCS_INDEX(rate_n_flags);
rx_status->enc_flags |= stbc << RX_ENC_FLAG_STBC_SHIFT;
} else if (format == RATE_MCS_VHT_MSK) {
u8 stbc = (rate_n_flags & RATE_MCS_STBC_MSK) >>
RATE_MCS_STBC_POS;
rx_status->rate_idx = rate_n_flags & RATE_MCS_CODE_MSK;
rx_status->encoding = RX_ENC_VHT;
rx_status->enc_flags |= stbc << RX_ENC_FLAG_STBC_SHIFT;
if (rate_n_flags & RATE_MCS_BF_MSK)
rx_status->enc_flags |= RX_ENC_FLAG_BF;
/*
* take the nss from the rx_vec since the rate_n_flags has
* only 2 bits for the nss which gives a max of 4 ss but
* there may be up to 8 spatial streams
*/
/*
* Override the nss from the rx_vec since the rate_n_flags has
* only 2 bits for the nss which gives a max of 4 ss but there
* may be up to 8 spatial streams.
*/
switch (format) {
case RATE_MCS_VHT_MSK:
rx_status->nss =
le32_get_bits(desc->rx_vec[0],
RX_NO_DATA_RX_VEC0_VHT_NSTS_MSK) + 1;
} else if (format == RATE_MCS_HE_MSK) {
break;
case RATE_MCS_HE_MSK:
rx_status->nss =
le32_get_bits(desc->rx_vec[0],
RX_NO_DATA_RX_VEC0_HE_NSTS_MSK) + 1;
} else {
int rate = iwl_mvm_legacy_hw_idx_to_mac80211_idx(rate_n_flags,
rx_status->band);
if (WARN(rate < 0 || rate > 0xFF,
"Invalid rate flags 0x%x, band %d,\n",
rate_n_flags, rx_status->band)) {
kfree_skb(skb);
goto out;
}
rx_status->rate_idx = rate;
break;
}
rcu_read_lock();
ieee80211_rx_napi(mvm->hw, sta, skb, napi);
out:
rcu_read_unlock();
}