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core.c
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core.c
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// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
/* Copyright(c) 2019-2020 Realtek Corporation
*/
#include "coex.h"
#include "core.h"
#include "efuse.h"
#include "fw.h"
#include "mac.h"
#include "phy.h"
#include "ps.h"
#include "reg.h"
#include "sar.h"
#include "ser.h"
#include "txrx.h"
#include "util.h"
/* ieee80211.h changes
* defined here first as temporary solustions
*/
#define IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_0 0x00
#define IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_1 0x08
#define IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_2 0x10
#define IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3 0x18
#define IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU 0x40
#define IEEE80211_HE_PHY_CAP3_RX_PARTIAL_BW_SU_IN_20MHZ_MU 0x40
#define IEEE80211_HE_PHY_CAP6_TRIG_SU_BEAMFORMING_FB 0x04
#define IEEE80211_HE_PHY_CAP7_POWER_BOOST_FACTOR_SUPP 0x02
static bool rtw89_disable_ps_mode;
module_param_named(disable_ps_mode, rtw89_disable_ps_mode, bool, 0644);
MODULE_PARM_DESC(disable_ps_mode, "Set Y to disable low power mode");
static struct ieee80211_channel rtw89_channels_2ghz[] = {
{ .center_freq = 2412, .hw_value = 1, },
{ .center_freq = 2417, .hw_value = 2, },
{ .center_freq = 2422, .hw_value = 3, },
{ .center_freq = 2427, .hw_value = 4, },
{ .center_freq = 2432, .hw_value = 5, },
{ .center_freq = 2437, .hw_value = 6, },
{ .center_freq = 2442, .hw_value = 7, },
{ .center_freq = 2447, .hw_value = 8, },
{ .center_freq = 2452, .hw_value = 9, },
{ .center_freq = 2457, .hw_value = 10, },
{ .center_freq = 2462, .hw_value = 11, },
{ .center_freq = 2467, .hw_value = 12, },
{ .center_freq = 2472, .hw_value = 13, },
{ .center_freq = 2484, .hw_value = 14, },
};
static struct ieee80211_channel rtw89_channels_5ghz[] = {
{.center_freq = 5180, .hw_value = 36,},
{.center_freq = 5200, .hw_value = 40,},
{.center_freq = 5220, .hw_value = 44,},
{.center_freq = 5240, .hw_value = 48,},
{.center_freq = 5260, .hw_value = 52,},
{.center_freq = 5280, .hw_value = 56,},
{.center_freq = 5300, .hw_value = 60,},
{.center_freq = 5320, .hw_value = 64,},
{.center_freq = 5500, .hw_value = 100,},
{.center_freq = 5520, .hw_value = 104,},
{.center_freq = 5540, .hw_value = 108,},
{.center_freq = 5560, .hw_value = 112,},
{.center_freq = 5580, .hw_value = 116,},
{.center_freq = 5600, .hw_value = 120,},
{.center_freq = 5620, .hw_value = 124,},
{.center_freq = 5640, .hw_value = 128,},
{.center_freq = 5660, .hw_value = 132,},
{.center_freq = 5680, .hw_value = 136,},
{.center_freq = 5700, .hw_value = 140,},
{.center_freq = 5720, .hw_value = 144,},
{.center_freq = 5745, .hw_value = 149,},
{.center_freq = 5765, .hw_value = 153,},
{.center_freq = 5785, .hw_value = 157,},
{.center_freq = 5805, .hw_value = 161,},
{.center_freq = 5825, .hw_value = 165,
.flags = IEEE80211_CHAN_NO_HT40MINUS},
};
static struct ieee80211_rate rtw89_bitrates[] = {
{ .bitrate = 10, .hw_value = 0x00, },
{ .bitrate = 20, .hw_value = 0x01, },
{ .bitrate = 55, .hw_value = 0x02, },
{ .bitrate = 110, .hw_value = 0x03, },
{ .bitrate = 60, .hw_value = 0x04, },
{ .bitrate = 90, .hw_value = 0x05, },
{ .bitrate = 120, .hw_value = 0x06, },
{ .bitrate = 180, .hw_value = 0x07, },
{ .bitrate = 240, .hw_value = 0x08, },
{ .bitrate = 360, .hw_value = 0x09, },
{ .bitrate = 480, .hw_value = 0x0a, },
{ .bitrate = 540, .hw_value = 0x0b, },
};
u16 rtw89_ra_report_to_bitrate(struct rtw89_dev *rtwdev, u8 rpt_rate)
{
struct ieee80211_rate rate;
if (unlikely(rpt_rate >= ARRAY_SIZE(rtw89_bitrates))) {
rtw89_info(rtwdev, "invalid rpt rate %d\n", rpt_rate);
return 0;
}
rate = rtw89_bitrates[rpt_rate];
return rate.bitrate;
}
static struct ieee80211_supported_band rtw89_sband_2ghz = {
.band = NL80211_BAND_2GHZ,
.channels = rtw89_channels_2ghz,
.n_channels = ARRAY_SIZE(rtw89_channels_2ghz),
.bitrates = rtw89_bitrates,
.n_bitrates = ARRAY_SIZE(rtw89_bitrates),
.ht_cap = {0},
.vht_cap = {0},
};
static struct ieee80211_supported_band rtw89_sband_5ghz = {
.band = NL80211_BAND_5GHZ,
.channels = rtw89_channels_5ghz,
.n_channels = ARRAY_SIZE(rtw89_channels_5ghz),
/* 5G has no CCK rates, 1M/2M/5.5M/11M */
.bitrates = rtw89_bitrates + 4,
.n_bitrates = ARRAY_SIZE(rtw89_bitrates) - 4,
.ht_cap = {0},
.vht_cap = {0},
};
static void rtw89_traffic_stats_accu(struct rtw89_dev *rtwdev,
struct rtw89_traffic_stats *stats,
struct sk_buff *skb, bool tx)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
if (!ieee80211_is_data(hdr->frame_control))
return;
if (is_broadcast_ether_addr(hdr->addr1) ||
is_multicast_ether_addr(hdr->addr1))
return;
if (tx) {
stats->tx_cnt++;
stats->tx_unicast += skb->len;
} else {
stats->rx_cnt++;
stats->rx_unicast += skb->len;
}
}
static void rtw89_get_channel_params(struct cfg80211_chan_def *chandef,
struct rtw89_channel_params *chan_param)
{
struct ieee80211_channel *channel = chandef->chan;
enum nl80211_chan_width width = chandef->width;
u8 *cch_by_bw = chan_param->cch_by_bw;
u32 primary_freq, center_freq;
u8 center_chan;
u8 bandwidth = RTW89_CHANNEL_WIDTH_20;
u8 primary_chan_idx = 0;
u8 i;
center_chan = channel->hw_value;
primary_freq = channel->center_freq;
center_freq = chandef->center_freq1;
/* assign the center channel used while 20M bw is selected */
cch_by_bw[RTW89_CHANNEL_WIDTH_20] = channel->hw_value;
switch (width) {
case NL80211_CHAN_WIDTH_20_NOHT:
case NL80211_CHAN_WIDTH_20:
bandwidth = RTW89_CHANNEL_WIDTH_20;
primary_chan_idx = RTW89_SC_DONT_CARE;
break;
case NL80211_CHAN_WIDTH_40:
bandwidth = RTW89_CHANNEL_WIDTH_40;
if (primary_freq > center_freq) {
primary_chan_idx = RTW89_SC_20_UPPER;
center_chan -= 2;
} else {
primary_chan_idx = RTW89_SC_20_LOWER;
center_chan += 2;
}
break;
case NL80211_CHAN_WIDTH_80:
bandwidth = RTW89_CHANNEL_WIDTH_80;
if (primary_freq > center_freq) {
if (primary_freq - center_freq == 10) {
primary_chan_idx = RTW89_SC_20_UPPER;
center_chan -= 2;
} else {
primary_chan_idx = RTW89_SC_20_UPMOST;
center_chan -= 6;
}
/* assign the center channel used
* while 40M bw is selected
*/
cch_by_bw[RTW89_CHANNEL_WIDTH_40] = center_chan + 4;
} else {
if (center_freq - primary_freq == 10) {
primary_chan_idx = RTW89_SC_20_LOWER;
center_chan += 2;
} else {
primary_chan_idx = RTW89_SC_20_LOWEST;
center_chan += 6;
}
/* assign the center channel used
* while 40M bw is selected
*/
cch_by_bw[RTW89_CHANNEL_WIDTH_40] = center_chan - 4;
}
break;
default:
center_chan = 0;
break;
}
chan_param->center_chan = center_chan;
chan_param->primary_chan = channel->hw_value;
chan_param->bandwidth = bandwidth;
chan_param->pri_ch_idx = primary_chan_idx;
/* assign the center channel used while current bw is selected */
cch_by_bw[bandwidth] = center_chan;
for (i = bandwidth + 1; i <= RTW89_MAX_CHANNEL_WIDTH; i++)
cch_by_bw[i] = 0;
}
void rtw89_set_channel(struct rtw89_dev *rtwdev)
{
struct ieee80211_hw *hw = rtwdev->hw;
const struct rtw89_chip_info *chip = rtwdev->chip;
struct rtw89_hal *hal = &rtwdev->hal;
struct rtw89_channel_params ch_param;
struct rtw89_channel_help_params bak;
u8 center_chan, bandwidth;
u8 band_type;
bool band_changed;
u8 i;
rtw89_get_channel_params(&hw->conf.chandef, &ch_param);
if (WARN(ch_param.center_chan == 0, "Invalid channel\n"))
return;
center_chan = ch_param.center_chan;
bandwidth = ch_param.bandwidth;
band_type = center_chan > 14 ? RTW89_BAND_5G : RTW89_BAND_2G;
band_changed = hal->current_band_type != band_type ||
hal->current_channel == 0;
hal->current_band_width = bandwidth;
hal->current_channel = center_chan;
hal->current_primary_channel = ch_param.primary_chan;
hal->current_band_type = band_type;
switch (center_chan) {
case 1 ... 14:
hal->current_subband = RTW89_CH_2G;
break;
case 36 ... 64:
hal->current_subband = RTW89_CH_5G_BAND_1;
break;
case 100 ... 144:
hal->current_subband = RTW89_CH_5G_BAND_3;
break;
case 149 ... 177:
hal->current_subband = RTW89_CH_5G_BAND_4;
break;
}
for (i = RTW89_CHANNEL_WIDTH_20; i <= RTW89_MAX_CHANNEL_WIDTH; i++)
hal->cch_by_bw[i] = ch_param.cch_by_bw[i];
rtw89_chip_set_channel_prepare(rtwdev, &bak);
chip->ops->set_channel(rtwdev, &ch_param);
rtw89_chip_set_txpwr(rtwdev);
rtw89_chip_set_channel_done(rtwdev, &bak);
if (band_changed) {
rtw89_btc_ntfy_switch_band(rtwdev, RTW89_PHY_0, hal->current_band_type);
rtw89_chip_rfk_band_changed(rtwdev);
}
}
static enum rtw89_core_tx_type
rtw89_core_get_tx_type(struct rtw89_dev *rtwdev,
struct sk_buff *skb)
{
struct ieee80211_hdr *hdr = (void *)skb->data;
__le16 fc = hdr->frame_control;
if (ieee80211_is_mgmt(fc) || ieee80211_is_nullfunc(fc))
return RTW89_CORE_TX_TYPE_MGMT;
return RTW89_CORE_TX_TYPE_DATA;
}
static void
rtw89_core_tx_update_ampdu_info(struct rtw89_dev *rtwdev,
struct rtw89_core_tx_request *tx_req, u8 tid)
{
struct ieee80211_sta *sta = tx_req->sta;
struct rtw89_tx_desc_info *desc_info = &tx_req->desc_info;
struct rtw89_sta *rtwsta;
u8 ampdu_num;
if (!sta) {
rtw89_warn(rtwdev, "cannot set ampdu info without sta\n");
return;
}
rtwsta = (struct rtw89_sta *)sta->drv_priv;
ampdu_num = (u8)((rtwsta->ampdu_params[tid].agg_num ?
rtwsta->ampdu_params[tid].agg_num :
4 << sta->ht_cap.ampdu_factor) - 1);
desc_info->agg_en = true;
desc_info->ampdu_density = sta->ht_cap.ampdu_density;
desc_info->ampdu_num = ampdu_num;
}
static void
rtw89_core_tx_update_sec_key(struct rtw89_dev *rtwdev,
struct rtw89_core_tx_request *tx_req)
{
struct ieee80211_vif *vif = tx_req->vif;
struct ieee80211_tx_info *info;
struct ieee80211_key_conf *key;
struct rtw89_vif *rtwvif;
struct rtw89_addr_cam_entry *addr_cam;
struct rtw89_sec_cam_entry *sec_cam;
struct rtw89_tx_desc_info *desc_info = &tx_req->desc_info;
struct sk_buff *skb = tx_req->skb;
u8 sec_type = RTW89_SEC_KEY_TYPE_NONE;
if (!vif) {
rtw89_warn(rtwdev, "cannot set sec key without vif\n");
return;
}
rtwvif = (struct rtw89_vif *)vif->drv_priv;
addr_cam = &rtwvif->addr_cam;
info = IEEE80211_SKB_CB(skb);
key = info->control.hw_key;
sec_cam = addr_cam->sec_entries[key->hw_key_idx];
if (!sec_cam) {
rtw89_warn(rtwdev, "sec cam entry is empty\n");
return;
}
switch (key->cipher) {
case WLAN_CIPHER_SUITE_WEP40:
sec_type = RTW89_SEC_KEY_TYPE_WEP40;
break;
case WLAN_CIPHER_SUITE_WEP104:
sec_type = RTW89_SEC_KEY_TYPE_WEP104;
break;
case WLAN_CIPHER_SUITE_TKIP:
sec_type = RTW89_SEC_KEY_TYPE_TKIP;
break;
case WLAN_CIPHER_SUITE_CCMP:
sec_type = RTW89_SEC_KEY_TYPE_CCMP128;
break;
case WLAN_CIPHER_SUITE_CCMP_256:
sec_type = RTW89_SEC_KEY_TYPE_CCMP256;
break;
case WLAN_CIPHER_SUITE_GCMP:
sec_type = RTW89_SEC_KEY_TYPE_GCMP128;
break;
case WLAN_CIPHER_SUITE_GCMP_256:
sec_type = RTW89_SEC_KEY_TYPE_GCMP256;
break;
default:
rtw89_warn(rtwdev, "key cipher not supported %d\n", key->cipher);
return;
}
desc_info->sec_en = true;
desc_info->sec_type = sec_type;
desc_info->sec_cam_idx = sec_cam->sec_cam_idx;
}
static void
rtw89_core_tx_update_mgmt_info(struct rtw89_dev *rtwdev,
struct rtw89_core_tx_request *tx_req)
{
struct rtw89_tx_desc_info *desc_info = &tx_req->desc_info;
u8 qsel, ch_dma;
qsel = RTW89_TX_QSEL_B0_MGMT;
ch_dma = rtw89_core_get_ch_dma(rtwdev, qsel);
desc_info->qsel = RTW89_TX_QSEL_B0_MGMT;
desc_info->ch_dma = ch_dma;
/* fixed data rate for mgmt frames */
desc_info->en_wd_info = true;
desc_info->use_rate = true;
desc_info->dis_data_fb = true;
desc_info->data_rate = 0x00;
}
static void
rtw89_core_tx_update_h2c_info(struct rtw89_dev *rtwdev,
struct rtw89_core_tx_request *tx_req)
{
struct rtw89_tx_desc_info *desc_info = &tx_req->desc_info;
desc_info->is_bmc = false;
desc_info->wd_page = false;
desc_info->ch_dma = RTW89_DMA_H2C;
}
static bool
__rtw89_core_tx_check_he_qos_htc(struct rtw89_dev *rtwdev,
struct rtw89_core_tx_request *tx_req,
enum btc_pkt_type pkt_type)
{
struct ieee80211_sta *sta = tx_req->sta;
struct sk_buff *skb = tx_req->skb;
struct ieee80211_hdr *hdr = (void *)skb->data;
__le16 fc = hdr->frame_control;
/* AP IOT issue with EAPoL, ARP and DHCP */
if (pkt_type < PACKET_MAX)
return false;
if (!sta || !sta->he_cap.has_he)
return false;
if (!ieee80211_is_data_qos(fc))
return false;
if (skb_headroom(skb) < IEEE80211_HT_CTL_LEN)
return false;
return true;
}
static void
__rtw89_core_tx_adjust_he_qos_htc(struct rtw89_dev *rtwdev,
struct rtw89_core_tx_request *tx_req)
{
struct sk_buff *skb = tx_req->skb;
struct ieee80211_hdr *hdr = (void *)skb->data;
__le16 fc = hdr->frame_control;
void *data;
__le32 *htc;
u8 *qc;
int hdr_len;
hdr_len = ieee80211_has_a4(fc) ? 32 : 26;
data = skb_push(skb, IEEE80211_HT_CTL_LEN);
memmove(data, data + IEEE80211_HT_CTL_LEN, hdr_len);
hdr = data;
htc = data + hdr_len;
hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_ORDER);
memset(htc, 0, sizeof(*htc));
*htc = le32_encode_bits(RTW89_HTC_VARIANT_HE, RTW89_HTC_MASK_VARIANT) |
le32_encode_bits(RTW89_HTC_VARIANT_HE_CID_CAS, RTW89_HTC_MASK_CTL_ID);
qc = data + hdr_len - IEEE80211_QOS_CTL_LEN;
qc[0] |= IEEE80211_QOS_CTL_EOSP;
}
static void
rtw89_core_tx_update_he_qos_htc(struct rtw89_dev *rtwdev,
struct rtw89_core_tx_request *tx_req,
enum btc_pkt_type pkt_type)
{
struct rtw89_tx_desc_info *desc_info = &tx_req->desc_info;
struct ieee80211_vif *vif = tx_req->vif;
struct rtw89_vif *rtwvif = (struct rtw89_vif *)vif->drv_priv;
if (!__rtw89_core_tx_check_he_qos_htc(rtwdev, tx_req, pkt_type))
goto desc_bk;
__rtw89_core_tx_adjust_he_qos_htc(rtwdev, tx_req);
desc_info->pkt_size += IEEE80211_HT_CTL_LEN;
desc_info->a_ctrl_bsr = true;
desc_bk:
if (!rtwvif || rtwvif->last_a_ctrl == desc_info->a_ctrl_bsr)
return;
rtwvif->last_a_ctrl = desc_info->a_ctrl_bsr;
desc_info->bk = true;
}
static void
rtw89_core_tx_update_data_info(struct rtw89_dev *rtwdev,
struct rtw89_core_tx_request *tx_req)
{
struct rtw89_tx_desc_info *desc_info = &tx_req->desc_info;
struct sk_buff *skb = tx_req->skb;
u8 tid, tid_indicate;
u8 qsel, ch_dma;
tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;
tid_indicate = rtw89_core_get_tid_indicate(rtwdev, tid);
qsel = rtw89_core_get_qsel(rtwdev, tid);
ch_dma = rtw89_core_get_ch_dma(rtwdev, qsel);
desc_info->ch_dma = ch_dma;
desc_info->tid_indicate = tid_indicate;
desc_info->qsel = qsel;
/* enable wd_info for AMPDU */
desc_info->en_wd_info = true;
if (IEEE80211_SKB_CB(skb)->flags & IEEE80211_TX_CTL_AMPDU)
rtw89_core_tx_update_ampdu_info(rtwdev, tx_req, tid);
if (IEEE80211_SKB_CB(skb)->control.hw_key)
rtw89_core_tx_update_sec_key(rtwdev, tx_req);
}
static enum btc_pkt_type
rtw89_core_tx_btc_spec_pkt_notify(struct rtw89_dev *rtwdev,
struct rtw89_core_tx_request *tx_req)
{
struct sk_buff *skb = tx_req->skb;
struct udphdr *udphdr;
if (IEEE80211_SKB_CB(skb)->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO) {
ieee80211_queue_work(rtwdev->hw, &rtwdev->btc.eapol_notify_work);
return PACKET_EAPOL;
}
if (skb->protocol == htons(ETH_P_ARP)) {
ieee80211_queue_work(rtwdev->hw, &rtwdev->btc.arp_notify_work);
return PACKET_ARP;
}
if (skb->protocol == htons(ETH_P_IP) &&
ip_hdr(skb)->protocol == IPPROTO_UDP) {
udphdr = udp_hdr(skb);
if (((udphdr->source == htons(67) && udphdr->dest == htons(68)) ||
(udphdr->source == htons(68) && udphdr->dest == htons(67))) &&
skb->len > 282) {
ieee80211_queue_work(rtwdev->hw, &rtwdev->btc.dhcp_notify_work);
return PACKET_DHCP;
}
}
return PACKET_MAX;
}
static void
rtw89_core_tx_update_desc_info(struct rtw89_dev *rtwdev,
struct rtw89_core_tx_request *tx_req)
{
struct rtw89_tx_desc_info *desc_info = &tx_req->desc_info;
struct sk_buff *skb = tx_req->skb;
struct ieee80211_hdr *hdr = (void *)skb->data;
enum rtw89_core_tx_type tx_type;
enum btc_pkt_type pkt_type;
bool is_bmc;
u16 seq;
seq = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
if (tx_req->tx_type != RTW89_CORE_TX_TYPE_FWCMD) {
tx_type = rtw89_core_get_tx_type(rtwdev, skb);
tx_req->tx_type = tx_type;
}
is_bmc = (is_broadcast_ether_addr(hdr->addr1) ||
is_multicast_ether_addr(hdr->addr1));
desc_info->seq = seq;
desc_info->pkt_size = skb->len;
desc_info->is_bmc = is_bmc;
desc_info->wd_page = true;
switch (tx_req->tx_type) {
case RTW89_CORE_TX_TYPE_MGMT:
rtw89_core_tx_update_mgmt_info(rtwdev, tx_req);
break;
case RTW89_CORE_TX_TYPE_DATA:
rtw89_core_tx_update_data_info(rtwdev, tx_req);
pkt_type = rtw89_core_tx_btc_spec_pkt_notify(rtwdev, tx_req);
rtw89_core_tx_update_he_qos_htc(rtwdev, tx_req, pkt_type);
break;
case RTW89_CORE_TX_TYPE_FWCMD:
desc_info->seq = 0;
rtw89_core_tx_update_h2c_info(rtwdev, tx_req);
break;
}
}
void rtw89_core_tx_kick_off(struct rtw89_dev *rtwdev, u8 qsel)
{
u8 ch_dma;
ch_dma = rtw89_core_get_ch_dma(rtwdev, qsel);
rtw89_hci_tx_kick_off(rtwdev, ch_dma);
}
int rtw89_h2c_tx(struct rtw89_dev *rtwdev,
struct sk_buff *skb, bool fwdl)
{
struct rtw89_core_tx_request tx_req = {0};
int ret;
tx_req.skb = skb;
tx_req.tx_type = RTW89_CORE_TX_TYPE_FWCMD;
if (fwdl)
tx_req.desc_info.fw_dl = true;
rtw89_core_tx_update_desc_info(rtwdev, &tx_req);
ret = rtw89_hci_tx_write(rtwdev, &tx_req);
if (ret) {
rtw89_err(rtwdev, "failed to transmit skb to HCI\n");
return ret;
}
rtw89_hci_tx_kick_off(rtwdev, RTW89_TXCH_CH12);
return 0;
}
int rtw89_core_tx_write(struct rtw89_dev *rtwdev, struct ieee80211_vif *vif,
struct ieee80211_sta *sta, struct sk_buff *skb, int *qsel)
{
struct rtw89_core_tx_request tx_req = {0};
struct rtw89_vif *rtwvif = (struct rtw89_vif *)vif->drv_priv;
int ret;
tx_req.skb = skb;
tx_req.sta = sta;
tx_req.vif = vif;
rtw89_traffic_stats_accu(rtwdev, &rtwdev->stats, skb, true);
rtw89_traffic_stats_accu(rtwdev, &rtwvif->stats, skb, true);
rtw89_core_tx_update_desc_info(rtwdev, &tx_req);
ret = rtw89_hci_tx_write(rtwdev, &tx_req);
if (ret) {
rtw89_err(rtwdev, "failed to transmit skb to HCI\n");
return ret;
}
if (qsel)
*qsel = tx_req.desc_info.qsel;
return 0;
}
void rtw89_core_fill_txdesc(struct rtw89_dev *rtwdev,
struct rtw89_tx_desc_info *desc_info,
void *txdesc)
{
RTW89_SET_TXWD_BODY_WP_OFFSET(txdesc, desc_info->wp_offset);
RTW89_SET_TXWD_BODY_WD_INFO_EN(txdesc, desc_info->en_wd_info);
RTW89_SET_TXWD_BODY_CHANNEL_DMA(txdesc, desc_info->ch_dma);
RTW89_SET_TXWD_BODY_HDR_LLC_LEN(txdesc, desc_info->hdr_llc_len);
RTW89_SET_TXWD_BODY_WD_PAGE(txdesc, desc_info->wd_page);
RTW89_SET_TXWD_BODY_FW_DL(txdesc, desc_info->fw_dl);
RTW89_SET_TXWD_BODY_SW_SEQ(txdesc, desc_info->seq);
RTW89_SET_TXWD_BODY_TID_INDICATE(txdesc, desc_info->tid_indicate);
RTW89_SET_TXWD_BODY_QSEL(txdesc, desc_info->qsel);
RTW89_SET_TXWD_BODY_TXPKT_SIZE(txdesc, desc_info->pkt_size);
RTW89_SET_TXWD_BODY_AGG_EN(txdesc, desc_info->agg_en);
RTW89_SET_TXWD_BODY_BK(txdesc, desc_info->bk);
if (!desc_info->en_wd_info)
return;
RTW89_SET_TXWD_INFO_USE_RATE(txdesc, desc_info->use_rate);
RTW89_SET_TXWD_INFO_DATA_RATE(txdesc, desc_info->data_rate);
RTW89_SET_TXWD_INFO_DISDATAFB(txdesc, desc_info->dis_data_fb);
RTW89_SET_TXWD_INFO_MAX_AGGNUM(txdesc, desc_info->ampdu_num);
RTW89_SET_TXWD_INFO_AMPDU_DENSITY(txdesc, desc_info->ampdu_density);
RTW89_SET_TXWD_INFO_SEC_TYPE(txdesc, desc_info->sec_type);
RTW89_SET_TXWD_INFO_SEC_HW_ENC(txdesc, desc_info->sec_en);
RTW89_SET_TXWD_INFO_SEC_CAM_IDX(txdesc, desc_info->sec_cam_idx);
RTW89_SET_TXWD_INFO_RTS_EN(txdesc, 1);
RTW89_SET_TXWD_INFO_HW_RTS_EN(txdesc, 1);
RTW89_SET_TXWD_INFO_A_CTRL_BSR(txdesc, desc_info->a_ctrl_bsr);
}
EXPORT_SYMBOL(rtw89_core_fill_txdesc);
static int rtw89_core_rx_process_mac_ppdu(struct rtw89_dev *rtwdev,
struct sk_buff *skb,
struct rtw89_rx_phy_ppdu *phy_ppdu)
{
bool rx_cnt_valid = false;
u8 plcp_size = 0;
u8 usr_num = 0;
u8 *phy_sts;
rx_cnt_valid = RTW89_GET_RXINFO_RX_CNT_VLD(skb->data);
plcp_size = RTW89_GET_RXINFO_PLCP_LEN(skb->data) << 3;
usr_num = RTW89_GET_RXINFO_USR_NUM(skb->data);
if (usr_num > RTW89_PPDU_MAX_USR) {
rtw89_warn(rtwdev, "Invalid user number in mac info\n");
return -EINVAL;
}
phy_sts = skb->data + RTW89_PPDU_MAC_INFO_SIZE;
phy_sts += usr_num * RTW89_PPDU_MAC_INFO_USR_SIZE;
/* 8-byte alignment */
if (usr_num & BIT(0))
phy_sts += RTW89_PPDU_MAC_INFO_USR_SIZE;
if (rx_cnt_valid)
phy_sts += RTW89_PPDU_MAC_RX_CNT_SIZE;
phy_sts += plcp_size;
phy_ppdu->buf = phy_sts;
phy_ppdu->len = skb->data + skb->len - phy_sts;
return 0;
}
static void rtw89_core_rx_process_phy_ppdu_iter(void *data,
struct ieee80211_sta *sta)
{
struct rtw89_sta *rtwsta = (struct rtw89_sta *)sta->drv_priv;
struct rtw89_rx_phy_ppdu *phy_ppdu = (struct rtw89_rx_phy_ppdu *)data;
if (rtwsta->mac_id == phy_ppdu->mac_id && phy_ppdu->to_self)
ewma_rssi_add(&rtwsta->avg_rssi, phy_ppdu->rssi_avg);
}
#define VAR_LEN 0xff
#define VAR_LEN_UNIT 8
static u16 rtw89_core_get_phy_status_ie_len(struct rtw89_dev *rtwdev, u8 *addr)
{
static const u8 physts_ie_len_tab[32] = {
16, 32, 24, 24, 8, 8, 8, 8, VAR_LEN, 8, VAR_LEN, 176, VAR_LEN,
VAR_LEN, VAR_LEN, VAR_LEN, VAR_LEN, VAR_LEN, 16, 24, VAR_LEN,
VAR_LEN, VAR_LEN, 0, 24, 24, 24, 24, 32, 32, 32, 32
};
u16 ie_len;
u8 ie;
ie = RTW89_GET_PHY_STS_IE_TYPE(addr);
if (physts_ie_len_tab[ie] != VAR_LEN)
ie_len = physts_ie_len_tab[ie];
else
ie_len = RTW89_GET_PHY_STS_IE_LEN(addr) * VAR_LEN_UNIT;
return ie_len;
}
static void rtw89_core_parse_phy_status_ie01(struct rtw89_dev *rtwdev, u8 *addr,
struct rtw89_rx_phy_ppdu *phy_ppdu)
{
s16 cfo;
/* sign conversion for S(12,2) */
cfo = sign_extend32(RTW89_GET_PHY_STS_IE0_CFO(addr), 11);
rtw89_phy_cfo_parse(rtwdev, cfo, phy_ppdu);
}
static int rtw89_core_process_phy_status_ie(struct rtw89_dev *rtwdev, u8 *addr,
struct rtw89_rx_phy_ppdu *phy_ppdu)
{
u8 ie;
ie = RTW89_GET_PHY_STS_IE_TYPE(addr);
switch (ie) {
case RTW89_PHYSTS_IE01_CMN_OFDM:
rtw89_core_parse_phy_status_ie01(rtwdev, addr, phy_ppdu);
break;
default:
break;
}
return 0;
}
static void rtw89_core_update_phy_ppdu(struct rtw89_rx_phy_ppdu *phy_ppdu)
{
s8 *rssi = phy_ppdu->rssi;
u8 *buf = phy_ppdu->buf;
phy_ppdu->rssi_avg = RTW89_GET_PHY_STS_RSSI_AVG(buf);
rssi[RF_PATH_A] = RTW89_RSSI_RAW_TO_DBM(RTW89_GET_PHY_STS_RSSI_A(buf));
rssi[RF_PATH_B] = RTW89_RSSI_RAW_TO_DBM(RTW89_GET_PHY_STS_RSSI_B(buf));
rssi[RF_PATH_C] = RTW89_RSSI_RAW_TO_DBM(RTW89_GET_PHY_STS_RSSI_C(buf));
rssi[RF_PATH_D] = RTW89_RSSI_RAW_TO_DBM(RTW89_GET_PHY_STS_RSSI_D(buf));
}
static int rtw89_core_rx_process_phy_ppdu(struct rtw89_dev *rtwdev,
struct rtw89_rx_phy_ppdu *phy_ppdu)
{
if (RTW89_GET_PHY_STS_LEN(phy_ppdu->buf) << 3 != phy_ppdu->len) {
rtw89_warn(rtwdev, "phy ppdu len mismatch\n");
return -EINVAL;
}
rtw89_core_update_phy_ppdu(phy_ppdu);
ieee80211_iterate_stations_atomic(rtwdev->hw,
rtw89_core_rx_process_phy_ppdu_iter,
phy_ppdu);
return 0;
}
static int rtw89_core_rx_parse_phy_sts(struct rtw89_dev *rtwdev,
struct rtw89_rx_phy_ppdu *phy_ppdu)
{
u16 ie_len;
u8 *pos, *end;
if (!phy_ppdu->to_self)
return 0;
pos = (u8 *)phy_ppdu->buf + PHY_STS_HDR_LEN;
end = (u8 *)phy_ppdu->buf + phy_ppdu->len;
while (pos < end) {
ie_len = rtw89_core_get_phy_status_ie_len(rtwdev, pos);
rtw89_core_process_phy_status_ie(rtwdev, pos, phy_ppdu);
pos += ie_len;
if (pos > end || ie_len == 0) {
rtw89_debug(rtwdev, RTW89_DBG_TXRX,
"phy status parse failed\n");
return -EINVAL;
}
}
return 0;
}
static void rtw89_core_rx_process_phy_sts(struct rtw89_dev *rtwdev,
struct rtw89_rx_phy_ppdu *phy_ppdu)
{
int ret;
ret = rtw89_core_rx_parse_phy_sts(rtwdev, phy_ppdu);
if (ret)
rtw89_debug(rtwdev, RTW89_DBG_TXRX, "parse phy sts failed\n");
else
phy_ppdu->valid = true;
}
static u8 rtw89_rxdesc_to_nl_he_gi(struct rtw89_dev *rtwdev,
const struct rtw89_rx_desc_info *desc_info,
bool rx_status)
{
switch (desc_info->gi_ltf) {
case RTW89_GILTF_SGI_4XHE08:
case RTW89_GILTF_2XHE08:
case RTW89_GILTF_1XHE08:
return NL80211_RATE_INFO_HE_GI_0_8;
case RTW89_GILTF_2XHE16:
case RTW89_GILTF_1XHE16:
return NL80211_RATE_INFO_HE_GI_1_6;
case RTW89_GILTF_LGI_4XHE32:
return NL80211_RATE_INFO_HE_GI_3_2;
default:
rtw89_warn(rtwdev, "invalid gi_ltf=%d", desc_info->gi_ltf);
return rx_status ? NL80211_RATE_INFO_HE_GI_3_2 : U8_MAX;
}
}
static bool rtw89_core_rx_ppdu_match(struct rtw89_dev *rtwdev,
struct rtw89_rx_desc_info *desc_info,
struct ieee80211_rx_status *status)
{
u8 band = desc_info->bb_sel ? RTW89_PHY_1 : RTW89_PHY_0;
u8 data_rate_mode, bw, rate_idx = MASKBYTE0, gi_ltf;
u16 data_rate;
bool ret;
data_rate = desc_info->data_rate;
data_rate_mode = GET_DATA_RATE_MODE(data_rate);
if (data_rate_mode == DATA_RATE_MODE_NON_HT) {
rate_idx = GET_DATA_RATE_NOT_HT_IDX(data_rate);
/* No 4 CCK rates for 5G */
if (status->band == NL80211_BAND_5GHZ)
rate_idx -= 4;
} else if (data_rate_mode == DATA_RATE_MODE_HT) {
rate_idx = GET_DATA_RATE_HT_IDX(data_rate);
} else if (data_rate_mode == DATA_RATE_MODE_VHT) {
rate_idx = GET_DATA_RATE_VHT_HE_IDX(data_rate);
} else if (data_rate_mode == DATA_RATE_MODE_HE) {
rate_idx = GET_DATA_RATE_VHT_HE_IDX(data_rate);
} else {
rtw89_warn(rtwdev, "invalid RX rate mode %d\n", data_rate_mode);
}
if (desc_info->bw == RTW89_CHANNEL_WIDTH_80)
bw = RATE_INFO_BW_80;
else if (desc_info->bw == RTW89_CHANNEL_WIDTH_40)
bw = RATE_INFO_BW_40;
else
bw = RATE_INFO_BW_20;
gi_ltf = rtw89_rxdesc_to_nl_he_gi(rtwdev, desc_info, false);
ret = rtwdev->ppdu_sts.curr_rx_ppdu_cnt[band] == desc_info->ppdu_cnt &&
status->rate_idx == rate_idx &&
status->he_gi == gi_ltf &&
status->bw == bw;
return ret;
}
struct rtw89_vif_rx_stats_iter_data {
struct rtw89_dev *rtwdev;
struct rtw89_rx_phy_ppdu *phy_ppdu;
struct rtw89_rx_desc_info *desc_info;
struct sk_buff *skb;
const u8 *bssid;
};
static void rtw89_vif_rx_stats_iter(void *data, u8 *mac,
struct ieee80211_vif *vif)
{
struct rtw89_vif *rtwvif = (struct rtw89_vif *)vif->drv_priv;
struct rtw89_vif_rx_stats_iter_data *iter_data = data;
struct rtw89_dev *rtwdev = iter_data->rtwdev;
struct rtw89_pkt_stat *pkt_stat = &rtwdev->phystat.cur_pkt_stat;
struct rtw89_rx_desc_info *desc_info = iter_data->desc_info;
struct sk_buff *skb = iter_data->skb;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
const u8 *bssid = iter_data->bssid;
if (!ether_addr_equal(vif->bss_conf.bssid, bssid))
return;
if (ieee80211_is_beacon(hdr->frame_control))
pkt_stat->beacon_nr++;
if (!ether_addr_equal(vif->addr, hdr->addr1))
return;
if (desc_info->data_rate < RTW89_HW_RATE_NR)
pkt_stat->rx_rate_cnt[desc_info->data_rate]++;
rtw89_traffic_stats_accu(rtwdev, &rtwvif->stats, skb, false);
}
static void rtw89_core_rx_stats(struct rtw89_dev *rtwdev,
struct rtw89_rx_phy_ppdu *phy_ppdu,
struct rtw89_rx_desc_info *desc_info,
struct sk_buff *skb)
{
struct rtw89_vif_rx_stats_iter_data iter_data;
rtw89_traffic_stats_accu(rtwdev, &rtwdev->stats, skb, false);
iter_data.rtwdev = rtwdev;
iter_data.phy_ppdu = phy_ppdu;
iter_data.desc_info = desc_info;
iter_data.skb = skb;
iter_data.bssid = get_hdr_bssid((struct ieee80211_hdr *)skb->data);
rtw89_iterate_vifs_bh(rtwdev, rtw89_vif_rx_stats_iter, &iter_data);
}
static void rtw89_core_rx_pending_skb(struct rtw89_dev *rtwdev,
struct rtw89_rx_phy_ppdu *phy_ppdu,
struct rtw89_rx_desc_info *desc_info,
struct sk_buff *skb)
{
u8 band = desc_info->bb_sel ? RTW89_PHY_1 : RTW89_PHY_0;
int curr = rtwdev->ppdu_sts.curr_rx_ppdu_cnt[band];
struct sk_buff *skb_ppdu = NULL, *tmp;
struct ieee80211_rx_status *rx_status;
if (curr > RTW89_MAX_PPDU_CNT)
return;
skb_queue_walk_safe(&rtwdev->ppdu_sts.rx_queue[band], skb_ppdu, tmp) {
skb_unlink(skb_ppdu, &rtwdev->ppdu_sts.rx_queue[band]);
rx_status = IEEE80211_SKB_RXCB(skb_ppdu);
if (rtw89_core_rx_ppdu_match(rtwdev, desc_info, rx_status))
rtw89_chip_query_ppdu(rtwdev, phy_ppdu, rx_status);
rtw89_core_rx_stats(rtwdev, phy_ppdu, desc_info, skb_ppdu);
ieee80211_rx_napi(rtwdev->hw, NULL, skb_ppdu, &rtwdev->napi);
rtwdev->napi_budget_countdown--;
}
}
static void rtw89_core_rx_process_ppdu_sts(struct rtw89_dev *rtwdev,
struct rtw89_rx_desc_info *desc_info,
struct sk_buff *skb)
{
struct rtw89_rx_phy_ppdu phy_ppdu = {.buf = skb->data, .valid = false,
.len = skb->len,
.to_self = desc_info->addr1_match,
.mac_id = desc_info->mac_id};
int ret;
if (desc_info->mac_info_valid)
rtw89_core_rx_process_mac_ppdu(rtwdev, skb, &phy_ppdu);
ret = rtw89_core_rx_process_phy_ppdu(rtwdev, &phy_ppdu);
if (ret)
rtw89_debug(rtwdev, RTW89_DBG_TXRX, "process ppdu failed\n");