// SPDX-License-Identifier: BSD-3-Clause-Clear
/*
* Copyright (c) 2018-2019 The Linux Foundation. All rights reserved.
*/
#include <net/mac80211.h>
#include <linux/etherdevice.h>
#include "mac.h"
#include "core.h"
#include "debug.h"
#include "wmi.h"
#include "hw.h"
#include "dp_tx.h"
#include "dp_rx.h"
#include "testmode.h"
#include "peer.h"
#define CHAN2G(_channel, _freq, _flags) { \
.band = NL80211_BAND_2GHZ, \
.hw_value = (_channel), \
.center_freq = (_freq), \
.flags = (_flags), \
.max_antenna_gain = 0, \
.max_power = 30, \
}
#define CHAN5G(_channel, _freq, _flags) { \
.band = NL80211_BAND_5GHZ, \
.hw_value = (_channel), \
.center_freq = (_freq), \
.flags = (_flags), \
.max_antenna_gain = 0, \
.max_power = 30, \
}
static const struct ieee80211_channel ath11k_2ghz_channels[] = {
CHAN2G(1, 2412, 0),
CHAN2G(2, 2417, 0),
CHAN2G(3, 2422, 0),
CHAN2G(4, 2427, 0),
CHAN2G(5, 2432, 0),
CHAN2G(6, 2437, 0),
CHAN2G(7, 2442, 0),
CHAN2G(8, 2447, 0),
CHAN2G(9, 2452, 0),
CHAN2G(10, 2457, 0),
CHAN2G(11, 2462, 0),
CHAN2G(12, 2467, 0),
CHAN2G(13, 2472, 0),
CHAN2G(14, 2484, 0),
};
static const struct ieee80211_channel ath11k_5ghz_channels[] = {
CHAN5G(36, 5180, 0),
CHAN5G(40, 5200, 0),
CHAN5G(44, 5220, 0),
CHAN5G(48, 5240, 0),
CHAN5G(52, 5260, 0),
CHAN5G(56, 5280, 0),
CHAN5G(60, 5300, 0),
CHAN5G(64, 5320, 0),
CHAN5G(100, 5500, 0),
CHAN5G(104, 5520, 0),
CHAN5G(108, 5540, 0),
CHAN5G(112, 5560, 0),
CHAN5G(116, 5580, 0),
CHAN5G(120, 5600, 0),
CHAN5G(124, 5620, 0),
CHAN5G(128, 5640, 0),
CHAN5G(132, 5660, 0),
CHAN5G(136, 5680, 0),
CHAN5G(140, 5700, 0),
CHAN5G(144, 5720, 0),
CHAN5G(149, 5745, 0),
CHAN5G(153, 5765, 0),
CHAN5G(157, 5785, 0),
CHAN5G(161, 5805, 0),
CHAN5G(165, 5825, 0),
CHAN5G(169, 5845, 0),
CHAN5G(173, 5865, 0),
};
static struct ieee80211_rate ath11k_legacy_rates[] = {
{ .bitrate = 10,
.hw_value = ATH11K_HW_RATE_CCK_LP_1M },
{ .bitrate = 20,
.hw_value = ATH11K_HW_RATE_CCK_LP_2M,
.hw_value_short = ATH11K_HW_RATE_CCK_SP_2M,
.flags = IEEE80211_RATE_SHORT_PREAMBLE },
{ .bitrate = 55,
.hw_value = ATH11K_HW_RATE_CCK_LP_5_5M,
.hw_value_short = ATH11K_HW_RATE_CCK_SP_5_5M,
.flags = IEEE80211_RATE_SHORT_PREAMBLE },
{ .bitrate = 110,
.hw_value = ATH11K_HW_RATE_CCK_LP_11M,
.hw_value_short = ATH11K_HW_RATE_CCK_SP_11M,
.flags = IEEE80211_RATE_SHORT_PREAMBLE },
{ .bitrate = 60, .hw_value = ATH11K_HW_RATE_OFDM_6M },
{ .bitrate = 90, .hw_value = ATH11K_HW_RATE_OFDM_9M },
{ .bitrate = 120, .hw_value = ATH11K_HW_RATE_OFDM_12M },
{ .bitrate = 180, .hw_value = ATH11K_HW_RATE_OFDM_18M },
{ .bitrate = 240, .hw_value = ATH11K_HW_RATE_OFDM_24M },
{ .bitrate = 360, .hw_value = ATH11K_HW_RATE_OFDM_36M },
{ .bitrate = 480, .hw_value = ATH11K_HW_RATE_OFDM_48M },
{ .bitrate = 540, .hw_value = ATH11K_HW_RATE_OFDM_54M },
};
static const int
ath11k_phymodes[NUM_NL80211_BANDS][ATH11K_CHAN_WIDTH_NUM] = {
[NL80211_BAND_2GHZ] = {
[NL80211_CHAN_WIDTH_5] = MODE_UNKNOWN,
[NL80211_CHAN_WIDTH_10] = MODE_UNKNOWN,
[NL80211_CHAN_WIDTH_20_NOHT] = MODE_11AX_HE20_2G,
[NL80211_CHAN_WIDTH_20] = MODE_11AX_HE20_2G,
[NL80211_CHAN_WIDTH_40] = MODE_11AX_HE40_2G,
[NL80211_CHAN_WIDTH_80] = MODE_11AX_HE80_2G,
[NL80211_CHAN_WIDTH_80P80] = MODE_UNKNOWN,
[NL80211_CHAN_WIDTH_160] = MODE_UNKNOWN,
},
[NL80211_BAND_5GHZ] = {
[NL80211_CHAN_WIDTH_5] = MODE_UNKNOWN,
[NL80211_CHAN_WIDTH_10] = MODE_UNKNOWN,
[NL80211_CHAN_WIDTH_20_NOHT] = MODE_11AX_HE20,
[NL80211_CHAN_WIDTH_20] = MODE_11AX_HE20,
[NL80211_CHAN_WIDTH_40] = MODE_11AX_HE40,
[NL80211_CHAN_WIDTH_80] = MODE_11AX_HE80,
[NL80211_CHAN_WIDTH_160] = MODE_11AX_HE160,
[NL80211_CHAN_WIDTH_80P80] = MODE_11AX_HE80_80,
},
};
const struct htt_rx_ring_tlv_filter ath11k_mac_mon_status_filter_default = {
.rx_filter = HTT_RX_FILTER_TLV_FLAGS_MPDU_START |
HTT_RX_FILTER_TLV_FLAGS_PPDU_END |
HTT_RX_FILTER_TLV_FLAGS_PPDU_END_STATUS_DONE,
.pkt_filter_flags0 = HTT_RX_FP_MGMT_FILTER_FLAGS0,
.pkt_filter_flags1 = HTT_RX_FP_MGMT_FILTER_FLAGS1,
.pkt_filter_flags2 = HTT_RX_FP_CTRL_FILTER_FLASG2,
.pkt_filter_flags3 = HTT_RX_FP_DATA_FILTER_FLASG3 |
HTT_RX_FP_CTRL_FILTER_FLASG3
};
#define ATH11K_MAC_FIRST_OFDM_RATE_IDX 4
#define ath11k_g_rates ath11k_legacy_rates
#define ath11k_g_rates_size (ARRAY_SIZE(ath11k_legacy_rates))
#define ath11k_a_rates (ath11k_legacy_rates + 4)
#define ath11k_a_rates_size (ARRAY_SIZE(ath11k_legacy_rates) - 4)
#define ATH11K_MAC_SCAN_TIMEOUT_MSECS 200 /* in msecs */
static const u32 ath11k_smps_map[] = {
[WLAN_HT_CAP_SM_PS_STATIC] = WMI_PEER_SMPS_STATIC,
[WLAN_HT_CAP_SM_PS_DYNAMIC] = WMI_PEER_SMPS_DYNAMIC,
[WLAN_HT_CAP_SM_PS_INVALID] = WMI_PEER_SMPS_PS_NONE,
[WLAN_HT_CAP_SM_PS_DISABLED] = WMI_PEER_SMPS_PS_NONE,
};
u8 ath11k_mac_bw_to_mac80211_bw(u8 bw)
{
u8 ret = 0;
switch (bw) {
case ATH11K_BW_20:
ret = RATE_INFO_BW_20;
break;
case ATH11K_BW_40:
ret = RATE_INFO_BW_40;
break;
case ATH11K_BW_80:
ret = RATE_INFO_BW_80;
break;
case ATH11K_BW_160:
ret = RATE_INFO_BW_160;
break;
}
return ret;
}
int ath11k_mac_hw_ratecode_to_legacy_rate(u8 hw_rc, u8 preamble, u8 *rateidx,
u16 *rate)
{
/* As default, it is OFDM rates */
int i = ATH11K_MAC_FIRST_OFDM_RATE_IDX;
int max_rates_idx = ath11k_g_rates_size;
if (preamble == WMI_RATE_PREAMBLE_CCK) {
hw_rc &= ~ATH11k_HW_RATECODE_CCK_SHORT_PREAM_MASK;
i = 0;
max_rates_idx = ATH11K_MAC_FIRST_OFDM_RATE_IDX;
}
while (i < max_rates_idx) {
if (hw_rc == ath11k_legacy_rates[i].hw_value) {
*rateidx = i;
*rate = ath11k_legacy_rates[i].bitrate;
return 0;
}
i++;
}
return -EINVAL;
}
static int get_num_chains(u32 mask)
{
int num_chains = 0;
while (mask) {
if (mask & BIT(0))
num_chains++;
mask >>= 1;
}
return num_chains;
}
u8 ath11k_mac_bitrate_to_idx(const struct ieee80211_supported_band *sband,
u32 bitrate)
{
int i;
for (i = 0; i < sband->n_bitrates; i++)
if (sband->bitrates[i].bitrate == bitrate)
return i;
return 0;
}
static u32
ath11k_mac_max_ht_nss(const u8 ht_mcs_mask[IEEE80211_HT_MCS_MASK_LEN])
{
int nss;
for (nss = IEEE80211_HT_MCS_MASK_LEN - 1; nss >= 0; nss--)
if (ht_mcs_mask[nss])
return nss + 1;
return 1;
}
static u32
ath11k_mac_max_vht_nss(const u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
{
int nss;
for (nss = NL80211_VHT_NSS_MAX - 1; nss >= 0; nss--)
if (vht_mcs_mask[nss])
return nss + 1;
return 1;
}
static u8 ath11k_parse_mpdudensity(u8 mpdudensity)
{
/* 802.11n D2.0 defined values for "Minimum MPDU Start Spacing":
* 0 for no restriction
* 1 for 1/4 us
* 2 for 1/2 us
* 3 for 1 us
* 4 for 2 us
* 5 for 4 us
* 6 for 8 us
* 7 for 16 us
*/
switch (mpdudensity) {
case 0:
return 0;
case 1:
case 2:
case 3:
/* Our lower layer calculations limit our precision to
* 1 microsecond
*/
return 1;
case 4:
return 2;
case 5:
return 4;
case 6:
return 8;
case 7:
return 16;
default:
return 0;
}
}
static int ath11k_mac_vif_chan(struct ieee80211_vif *vif,
struct cfg80211_chan_def *def)
{
struct ieee80211_chanctx_conf *conf;
rcu_read_lock();
conf = rcu_dereference(vif->chanctx_conf);
if (!conf) {
rcu_read_unlock();
return -ENOENT;
}
*def = conf->def;
rcu_read_unlock();
return 0;
}
static bool ath11k_mac_bitrate_is_cck(int bitrate)
{
switch (bitrate) {
case 10:
case 20:
case 55:
case 110:
return true;
}
return false;
}
u8 ath11k_mac_hw_rate_to_idx(const struct ieee80211_supported_band *sband,
u8 hw_rate, bool cck)
{
const struct ieee80211_rate *rate;
int i;
for (i = 0; i < sband->n_bitrates; i++) {
rate = &sband->bitrates[i];
if (ath11k_mac_bitrate_is_cck(rate->bitrate) != cck)
continue;
if (rate->hw_value == hw_rate)
return i;
else if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE &&
rate->hw_value_short == hw_rate)
return i;
}
return 0;
}
static u8 ath11k_mac_bitrate_to_rate(int bitrate)
{
return DIV_ROUND_UP(bitrate, 5) |
(ath11k_mac_bitrate_is_cck(bitrate) ? BIT(7) : 0);
}
static void ath11k_get_arvif_iter(void *data, u8 *mac,
struct ieee80211_vif *vif)
{
struct ath11k_vif_iter *arvif_iter = data;
struct ath11k_vif *arvif = (void *)vif->drv_priv;
if (arvif->vdev_id == arvif_iter->vdev_id)
arvif_iter->arvif = arvif;
}
struct ath11k_vif *ath11k_mac_get_arvif(struct ath11k *ar, u32 vdev_id)
{
struct ath11k_vif_iter arvif_iter;
u32 flags;
memset(&arvif_iter, 0, sizeof(struct ath11k_vif_iter));
arvif_iter.vdev_id = vdev_id;
flags = IEEE80211_IFACE_ITER_RESUME_ALL;
ieee80211_iterate_active_interfaces_atomic(ar->hw,
flags,
ath11k_get_arvif_iter,
&arvif_iter);
if (!arvif_iter.arvif)
return NULL;
return arvif_iter.arvif;
}
struct ath11k_vif *ath11k_mac_get_arvif_by_vdev_id(struct ath11k_base *ab,
u32 vdev_id)
{
int i;
struct ath11k_pdev *pdev;
struct ath11k_vif *arvif;
for (i = 0; i < ab->num_radios; i++) {
pdev = rcu_dereference(ab->pdevs_active[i]);
if (pdev && pdev->ar) {
arvif = ath11k_mac_get_arvif(pdev->ar, vdev_id);
if (arvif)
return arvif;
}
}
return NULL;
}
struct ath11k *ath11k_mac_get_ar_by_vdev_id(struct ath11k_base *ab, u32 vdev_id)
{
int i;
struct ath11k_pdev *pdev;
struct ath11k_vif *arvif;
for (i = 0; i < ab->num_radios; i++) {
pdev = rcu_dereference(ab->pdevs_active[i]);
if (pdev && pdev->ar) {
arvif = ath11k_mac_get_arvif(pdev->ar, vdev_id);
if (arvif)
return arvif->ar;
}
}
return NULL;
}
struct ath11k *ath11k_mac_get_ar_by_pdev_id(struct ath11k_base *ab, u32 pdev_id)
{
int i;
struct ath11k_pdev *pdev;
if (WARN_ON(pdev_id > ab->num_radios))
return NULL;
for (i = 0; i < ab->num_radios; i++) {
pdev = rcu_dereference(ab->pdevs_active[i]);
if (pdev && pdev->pdev_id == pdev_id)
return (pdev->ar ? pdev->ar : NULL);
}
return NULL;
}
struct ath11k *ath11k_mac_get_ar_vdev_stop_status(struct ath11k_base *ab,
u32 vdev_id)
{
int i;
struct ath11k_pdev *pdev;
struct ath11k *ar;
for (i = 0; i < ab->num_radios; i++) {
pdev = rcu_dereference(ab->pdevs_active[i]);
if (pdev && pdev->ar) {
ar = pdev->ar;
spin_lock_bh(&ar->data_lock);
if (ar->vdev_stop_status.stop_in_progress &&
ar->vdev_stop_status.vdev_id == vdev_id) {
ar->vdev_stop_status.stop_in_progress = false;
spin_unlock_bh(&ar->data_lock);
return ar;
}
spin_unlock_bh(&ar->data_lock);
}
}
return NULL;
}
static void ath11k_pdev_caps_update(struct ath11k *ar)
{
struct ath11k_base *ab = ar->ab;
ar->max_tx_power = ab->target_caps.hw_max_tx_power;
/* FIXME Set min_tx_power to ab->target_caps.hw_min_tx_power.
* But since the received value in svcrdy is same as hw_max_tx_power,
* we can set ar->min_tx_power to 0 currently until
* this is fixed in firmware
*/
ar->min_tx_power = 0;
ar->txpower_limit_2g = ar->max_tx_power;
ar->txpower_limit_5g = ar->max_tx_power;
ar->txpower_scale = WMI_HOST_TP_SCALE_MAX;
}
static int ath11k_mac_txpower_recalc(struct ath11k *ar)
{
struct ath11k_pdev *pdev = ar->pdev;
struct ath11k_vif *arvif;
int ret, txpower = -1;
u32 param;
lockdep_assert_held(&ar->conf_mutex);
list_for_each_entry(arvif, &ar->arvifs, list) {
if (arvif->txpower <= 0)
continue;
if (txpower == -1)
txpower = arvif->txpower;
else
txpower = min(txpower, arvif->txpower);
}
if (txpower == -1)
return 0;
/* txpwr is set as 2 units per dBm in FW*/
txpower = min_t(u32, max_t(u32, ar->min_tx_power, txpower),
ar->max_tx_power) * 2;
ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "txpower to set in hw %d\n",
txpower / 2);
if ((pdev->cap.supported_bands & WMI_HOST_WLAN_2G_CAP) &&
ar->txpower_limit_2g != txpower) {
param = WMI_PDEV_PARAM_TXPOWER_LIMIT2G;
ret = ath11k_wmi_pdev_set_param(ar, param,
txpower, ar->pdev->pdev_id);
if (ret)
goto fail;
ar->txpower_limit_2g = txpower;
}
if ((pdev->cap.supported_bands & WMI_HOST_WLAN_5G_CAP) &&
ar->txpower_limit_5g != txpower) {
param = WMI_PDEV_PARAM_TXPOWER_LIMIT5G;
ret = ath11k_wmi_pdev_set_param(ar, param,
txpower, ar->pdev->pdev_id);
if (ret)
goto fail;
ar->txpower_limit_5g = txpower;
}
return 0;
fail:
ath11k_warn(ar->ab, "failed to recalc txpower limit %d using pdev param %d: %d\n",
txpower / 2, param, ret);
return ret;
}
static int ath11k_recalc_rtscts_prot(struct ath11k_vif *arvif)
{
struct ath11k *ar = arvif->ar;
u32 vdev_param, rts_cts = 0;
int ret;
lockdep_assert_held(&ar->conf_mutex);
vdev_param = WMI_VDEV_PARAM_ENABLE_RTSCTS;
/* Enable RTS/CTS protection for sw retries (when legacy stations
* are in BSS) or by default only for second rate series.
* TODO: Check if we need to enable CTS 2 Self in any case
*/
rts_cts = WMI_USE_RTS_CTS;
if (arvif->num_legacy_stations > 0)
rts_cts |= WMI_RTSCTS_ACROSS_SW_RETRIES << 4;
else
rts_cts |= WMI_RTSCTS_FOR_SECOND_RATESERIES << 4;
/* Need not send duplicate param value to firmware */
if (arvif->rtscts_prot_mode == rts_cts)
return 0;
arvif->rtscts_prot_mode = rts_cts;
ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "mac vdev %d recalc rts/cts prot %d\n",
arvif->vdev_id, rts_cts);
ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id,
vdev_param, rts_cts);
if (ret)
ath11k_warn(ar->ab, "failed to recalculate rts/cts prot for vdev %d: %d\n",
arvif->vdev_id, ret);
return ret;
}
static int ath11k_mac_set_kickout(struct ath11k_vif *arvif)
{
struct ath11k *ar = arvif->ar;
u32 param;
int ret;
ret = ath11k_wmi_pdev_set_param(ar, WMI_PDEV_PARAM_STA_KICKOUT_TH,
ATH11K_KICKOUT_THRESHOLD,
ar->pdev->pdev_id);
if (ret) {
ath11k_warn(ar->ab, "failed to set kickout threshold on vdev %i: %d\n",
arvif->vdev_id, ret);
return ret;
}
param = WMI_VDEV_PARAM_AP_KEEPALIVE_MIN_IDLE_INACTIVE_TIME_SECS;
ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id, param,
ATH11K_KEEPALIVE_MIN_IDLE);
if (ret) {
ath11k_warn(ar->ab, "failed to set keepalive minimum idle time on vdev %i: %d\n",
arvif->vdev_id, ret);
return ret;
}
param = WMI_VDEV_PARAM_AP_KEEPALIVE_MAX_IDLE_INACTIVE_TIME_SECS;
ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id, param,
ATH11K_KEEPALIVE_MAX_IDLE);
if (ret) {
ath11k_warn(ar->ab, "failed to set keepalive maximum idle time on vdev %i: %d\n",
arvif->vdev_id, ret);
return ret;
}
param = WMI_VDEV_PARAM_AP_KEEPALIVE_MAX_UNRESPONSIVE_TIME_SECS;
ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id, param,
ATH11K_KEEPALIVE_MAX_UNRESPONSIVE);
if (ret) {
ath11k_warn(ar->ab, "failed to set keepalive maximum unresponsive time on vdev %i: %d\n",
arvif->vdev_id, ret);
return ret;
}
return 0;
}
void ath11k_mac_peer_cleanup_all(struct ath11k *ar)
{
struct ath11k_peer *peer, *tmp;
struct ath11k_base *ab = ar->ab;
lockdep_assert_held(&ar->conf_mutex);
spin_lock_bh(&ab->base_lock);
list_for_each_entry_safe(peer, tmp, &ab->peers, list) {
ath11k_peer_rx_tid_cleanup(ar, peer);
list_del(&peer->list);
kfree(peer);
}
spin_unlock_bh(&ab->base_lock);
ar->num_peers = 0;
ar->num_stations = 0;
}
static int ath11k_monitor_vdev_up(struct ath11k *ar, int vdev_id)
{
int ret = 0;
ret = ath11k_wmi_vdev_up(ar, vdev_id, 0, ar->mac_addr);
if (ret) {
ath11k_warn(ar->ab, "failed to put up monitor vdev %i: %d\n",
vdev_id, ret);
return ret;
}
ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "mac monitor vdev %i started\n",
vdev_id);
return 0;
}
static int ath11k_mac_op_config(struct ieee80211_hw *hw, u32 changed)
{
struct ath11k *ar = hw->priv;
int ret = 0;
/* mac80211 requires this op to be present and that's why
* there's an empty function, this can be extended when
* required.
*/
mutex_lock(&ar->conf_mutex);
/* TODO: Handle configuration changes as appropriate */
mutex_unlock(&ar->conf_mutex);
return ret;
}
static int ath11k_mac_setup_bcn_tmpl(struct ath11k_vif *arvif)
{
struct ath11k *ar = arvif->ar;
struct ath11k_base *ab = ar->ab;
struct ieee80211_hw *hw = ar->hw;
struct ieee80211_vif *vif = arvif->vif;
struct ieee80211_mutable_offsets offs = {};
struct sk_buff *bcn;
int ret;
if (arvif->vdev_type != WMI_VDEV_TYPE_AP)
return 0;
bcn = ieee80211_beacon_get_template(hw, vif, &offs);
if (!bcn) {
ath11k_warn(ab, "failed to get beacon template from mac80211\n");
return -EPERM;
}
ret = ath11k_wmi_bcn_tmpl(ar, arvif->vdev_id, &offs, bcn);
kfree_skb(bcn);
if (ret)
ath11k_warn(ab, "failed to submit beacon template command: %d\n",
ret);
return ret;
}
static void ath11k_control_beaconing(struct ath11k_vif *arvif,
struct ieee80211_bss_conf *info)
{
struct ath11k *ar = arvif->ar;
int ret = 0;
lockdep_assert_held(&arvif->ar->conf_mutex);
if (!info->enable_beacon) {
ret = ath11k_wmi_vdev_down(ar, arvif->vdev_id);
if (ret)
ath11k_warn(ar->ab, "failed to down vdev_id %i: %d\n",
arvif->vdev_id, ret);
arvif->is_up = false;
return;
}
/* Install the beacon template to the FW */
ret = ath11k_mac_setup_bcn_tmpl(arvif);
if (ret) {
ath11k_warn(ar->ab, "failed to update bcn tmpl during vdev up: %d\n",
ret);
return;
}
arvif->tx_seq_no = 0x1000;
arvif->aid = 0;
ether_addr_copy(arvif->bssid, info->bssid);
ret = ath11k_wmi_vdev_up(arvif->ar, arvif->vdev_id, arvif->aid,
arvif->bssid);
if (ret) {
ath11k_warn(ar->ab, "failed to bring up vdev %d: %i\n",
arvif->vdev_id, ret);
return;
}
arvif->is_up = true;
ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "mac vdev %d up\n", arvif->vdev_id);
}
static void ath11k_peer_assoc_h_basic(struct ath11k *ar,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
struct peer_assoc_params *arg)
{
struct ath11k_vif *arvif = (void *)vif->drv_priv;
u32 aid;
lockdep_assert_held(&ar->conf_mutex);
if (vif->type == NL80211_IFTYPE_STATION)
aid = vif->bss_conf.aid;
else
aid = sta->aid;
ether_addr_copy(arg->peer_mac, sta->addr);
arg->vdev_id = arvif->vdev_id;
arg->peer_associd = aid;
arg->auth_flag = true;
/* TODO: STA WAR in ath10k for listen interval required? */
arg->peer_listen_intval = ar->hw->conf.listen_interval;
arg->peer_nss = 1;
arg->peer_caps = vif->bss_conf.assoc_capability;
}
static void ath11k_peer_assoc_h_crypto(struct ath11k *ar,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
struct peer_assoc_params *arg)
{
struct ieee80211_bss_conf *info = &vif->bss_conf;
struct cfg80211_chan_def def;
struct cfg80211_bss *bss;
const u8 *rsnie = NULL;
const u8 *wpaie = NULL;
lockdep_assert_held(&ar->conf_mutex);
if (WARN_ON(ath11k_mac_vif_chan(vif, &def)))
return;
bss = cfg80211_get_bss(ar->hw->wiphy, def.chan, info->bssid, NULL, 0,
IEEE80211_BSS_TYPE_ANY, IEEE80211_PRIVACY_ANY);
if (bss) {
const struct cfg80211_bss_ies *ies;
rcu_read_lock();
rsnie = ieee80211_bss_get_ie(bss, WLAN_EID_RSN);
ies = rcu_dereference(bss->ies);
wpaie = cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT,
WLAN_OUI_TYPE_MICROSOFT_WPA,
ies->data,
ies->len);
rcu_read_unlock();
cfg80211_put_bss(ar->hw->wiphy, bss);
}
/* FIXME: base on RSN IE/WPA IE is a correct idea? */
if (rsnie || wpaie) {
ath11k_dbg(ar->ab, ATH11K_DBG_WMI,
"%s: rsn ie found\n", __func__);
arg->need_ptk_4_way = true;
}
if (wpaie) {
ath11k_dbg(ar->ab, ATH11K_DBG_WMI,
"%s: wpa ie found\n", __func__);
arg->need_gtk_2_way = true;
}
if (sta->mfp) {
/* TODO: Need to check if FW supports PMF? */
arg->is_pmf_enabled = true;
}
/* TODO: safe_mode_enabled (bypass 4-way handshake) flag req? */
}
static void ath11k_peer_assoc_h_rates(struct ath11k *ar,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
struct peer_assoc_params *arg)
{
struct ath11k_vif *arvif = (void *)vif->drv_priv;
struct wmi_rate_set_arg *rateset = &arg->peer_legacy_rates;
struct cfg80211_chan_def def;
const struct ieee80211_supported_band *sband;
const struct ieee80211_rate *rates;
enum nl80211_band band;
u32 ratemask;
u8 rate;
int i;
lockdep_assert_held(&ar->conf_mutex);
if (WARN_ON(ath11k_mac_vif_chan(vif, &def)))
return;
band = def.chan->band;
sband = ar->hw->wiphy->bands[band];
ratemask = sta->supp_rates[band];
ratemask &= arvif->bitrate_mask.control[band].legacy;
rates = sband->bitrates;
rateset->num_rates = 0;
for (i = 0; i < 32; i++, ratemask >>= 1, rates++) {
if (!(ratemask & 1))
continue;
rate = ath11k_mac_bitrate_to_rate(rates->bitrate);
rateset->rates[rateset->num_rates] = rate;
rateset->num_rates++;
}
}
static bool
ath11k_peer_assoc_h_ht_masked(const u8 ht_mcs_mask[IEEE80211_HT_MCS_MASK_LEN])
{
int nss;
for (nss = 0; nss < IEEE80211_HT_MCS_MASK_LEN; nss++)
if (ht_mcs_mask[nss])
return false;
return true;
}
static bool
ath11k_peer_assoc_h_vht_masked(const u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
{
int nss;
for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++)
if (vht_mcs_mask[nss])
return false;
return true;
}
static void ath11k_peer_assoc_h_ht(struct ath11k *ar,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
struct peer_assoc_params *arg)
{
const struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
struct ath11k_vif *arvif = (void *)vif->drv_priv;
struct cfg80211_chan_def def;
enum nl80211_band band;
const u8 *ht_mcs_mask;
int i, n;
u8 max_nss;
u32 stbc;
lockdep_assert_held(&ar->conf_mutex);
if (WARN_ON(ath11k_mac_vif_chan(vif, &def)))
return;
if (!ht_cap->ht_supported)
return;
band = def.chan->band;
ht_mcs_mask = arvif->bitrate_mask.control[band].ht_mcs;
if (ath11k_peer_assoc_h_ht_masked(ht_mcs_mask))
return;
arg->ht_flag = true;
arg->peer_max_mpdu = (1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
ht_cap->ampdu_factor)) - 1;
arg->peer_mpdu_density =
ath11k_parse_mpdudensity(ht_cap->ampdu_density);
arg->peer_ht_caps = ht_cap->cap;
arg->peer_rate_caps |= WMI_HOST_RC_HT_FLAG;
if (ht_cap->cap & IEEE80211_HT_CAP_LDPC_CODING)
arg->ldpc_flag = true;
if (sta->bandwidth >= IEEE80211_STA_RX_BW_40) {
arg->bw_40 = true;
arg->peer_rate_caps |= WMI_HOST_RC_CW40_FLAG;
}
if (arvif->bitrate_mask.control[band].gi != NL80211_TXRATE_FORCE_LGI) {
if (ht_cap->cap & (IEEE80211_HT_CAP_SGI_20 |
IEEE80211_HT_CAP_SGI_40))
arg->peer_rate_caps |= WMI_HOST_RC_SGI_FLAG;
}
if (ht_cap->cap & IEEE80211_HT_CAP_TX_STBC) {
arg->peer_rate_caps |= WMI_HOST_RC_TX_STBC_FLAG;
arg->stbc_flag = true;
}
if (ht_cap->cap & IEEE80211_HT_CAP_RX_STBC) {
stbc = ht_cap->cap & IEEE80211_HT_CAP_RX_STBC;
stbc = stbc >> IEEE80211_HT_CAP_RX_STBC_SHIFT;
stbc = stbc << WMI_HOST_RC_RX_STBC_FLAG_S;
arg->peer_rate_caps |= stbc;
arg->stbc_flag = true;
}
if (ht_cap->mcs.rx_mask[1] && ht_cap->mcs.rx_mask[2])
arg->peer_rate_caps |= WMI_HOST_RC_TS_FLAG;
else if (ht_cap->mcs.rx_mask[1])
arg->peer_rate_caps |= WMI_HOST_RC_DS_FLAG;
for (i = 0, n = 0, max_nss = 0; i < IEEE80211_HT_MCS_MASK_LEN * 8; i++)
if ((ht_cap->mcs.rx_mask[i / 8] & BIT(i % 8)) &&
(ht_mcs_mask[i / 8] & BIT(i % 8))) {
max_nss = (i / 8) + 1;
arg->peer_ht_rates.rates[n++] = i;
}
/* This is a workaround for HT-enabled STAs which break the spec
* and have no HT capabilities RX mask (no HT RX MCS map).
*
* As per spec, in section 20.3.5 Modulation and coding scheme (MCS),
* MCS 0 through 7 are mandatory in 20MHz with 800 ns GI at all STAs.
*
* Firmware asserts if such situation occurs.
*/
if (n == 0) {
arg->peer_ht_rates.num_rates = 8;
for (i = 0; i < arg->peer_ht_rates.num_rates; i++)
arg->peer_ht_rates.rates[i] = i;
} else {
arg->peer_ht_rates.num_rates = n;
arg->peer_nss = min(sta->rx_nss, max_nss);
}
ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "mac ht peer %pM mcs cnt %d nss %d\n",
arg->peer_mac,
arg->peer_ht_rates.num_rates,
arg->peer_nss);
}
static int ath11k_mac_get_max_vht_mcs_map(u16 mcs_map, int nss)
{
switch ((mcs_map >> (2 * nss)) & 0x3) {
case IEEE80211_VHT_MCS_SUPPORT_0_7: return BIT(8) - 1;
case IEEE80211_VHT_MCS_SUPPORT_0_8: return BIT(9) - 1;
case IEEE80211_VHT_MCS_SUPPORT_0_9: return BIT(10) - 1;
}
return 0;
}
static u16
ath11k_peer_assoc_h_vht_limit(u16 tx_mcs_set,
const u16 vht_mcs_limit[NL80211_VHT_NSS_MAX])
{
int idx_limit;
int nss;
u16 mcs_map;
u16 mcs;
for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
mcs_map = ath11k_mac_get_max_vht_mcs_map(tx_mcs_set, nss) &
vht_mcs_limit[nss];
if (mcs_map)
idx_limit = fls(mcs_map) - 1;
else
idx_limit = -1;
switch (idx_limit) {
case 0: /* fall through */
case 1: /* fall through */
case 2: /* fall through */
case 3: /* fall through */
case 4: /* fall through */
case 5: /* fall through */
case 6: /* fall through */
case 7:
mcs = IEEE80211_VHT_MCS_SUPPORT_0_7;
break;
case 8:
mcs = IEEE80211_VHT_MCS_SUPPORT_0_8;
break;
case 9:
mcs = IEEE80211_VHT_MCS_SUPPORT_0_9;
break;
default:
WARN_ON(1);
/* fall through */
case -1:
mcs = IEEE80211_VHT_MCS_NOT_SUPPORTED;
break;
}
tx_mcs_set &= ~(0x3 << (nss * 2));
tx_mcs_set |= mcs << (nss * 2);
}
return tx_mcs_set;
}
static void ath11k_peer_assoc_h_vht(struct ath11k *ar,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
struct peer_assoc_params *arg)
{
const struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap;
struct ath11k_vif *arvif = (void *)vif->drv_priv;
struct cfg80211_chan_def def;
enum nl80211_band band;
const u16 *vht_mcs_mask;
u8 ampdu_factor;
u8 max_nss, vht_mcs;
int i;
if (WARN_ON(ath11k_mac_vif_chan(vif, &def)))
return;
if (!vht_cap->vht_supported)
return;
band = def.chan->band;
vht_mcs_mask = arvif->bitrate_mask.control[band].vht_mcs;
if (ath11k_peer_assoc_h_vht_masked(vht_mcs_mask))
return;
arg->vht_flag = true;
/* TODO: similar flags required? */
arg->vht_capable = true;
if (def.chan->band == NL80211_BAND_2GHZ)
arg->vht_ng_flag = true;
arg->peer_vht_caps = vht_cap->cap;
ampdu_factor = (vht_cap->cap &
IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >>
IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT;
/* Workaround: Some Netgear/Linksys 11ac APs set Rx A-MPDU factor to
* zero in VHT IE. Using it would result in degraded throughput.
* arg->peer_max_mpdu at this point contains HT max_mpdu so keep
* it if VHT max_mpdu is smaller.
*/
arg->peer_max_mpdu = max(arg->peer_max_mpdu,
(1U << (IEEE80211_HT_MAX_AMPDU_FACTOR +
ampdu_factor)) - 1);
if (sta->bandwidth == IEEE80211_STA_RX_BW_80)
arg->bw_80 = true;
if (sta->bandwidth == IEEE80211_STA_RX_BW_160)
arg->bw_160 = true;
/* Calculate peer NSS capability from VHT capabilities if STA
* supports VHT.
*/
for (i = 0, max_nss = 0, vht_mcs = 0; i < NL80211_VHT_NSS_MAX; i++) {
vht_mcs = __le16_to_cpu(vht_cap->vht_mcs.rx_mcs_map) >>
(2 * i) & 3;
if (vht_mcs != IEEE80211_VHT_MCS_NOT_SUPPORTED &&
vht_mcs_mask[i])
max_nss = i + 1;
}
arg->peer_nss = min(sta->rx_nss, max_nss);
arg->rx_max_rate = __le16_to_cpu(vht_cap->vht_mcs.rx_highest);
arg->rx_mcs_set = __le16_to_cpu(vht_cap->vht_mcs.rx_mcs_map);
arg->tx_max_rate = __le16_to_cpu(vht_cap->vht_mcs.tx_highest);
arg->tx_mcs_set = ath11k_peer_assoc_h_vht_limit(
__le16_to_cpu(vht_cap->vht_mcs.tx_mcs_map), vht_mcs_mask);
/* In IPQ8074 platform, VHT mcs rate 10 and 11 is enabled by default.
* VHT mcs rate 10 and 11 is not suppoerted in 11ac standard.
* so explicitly disable the VHT MCS rate 10 and 11 in 11ac mode.
*/
arg->tx_mcs_set &= ~IEEE80211_VHT_MCS_SUPPORT_0_11_MASK;
arg->tx_mcs_set |= IEEE80211_DISABLE_VHT_MCS_SUPPORT_0_11;
/* TODO: Check */
arg->tx_max_mcs_nss = 0xFF;
ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "mac vht peer %pM max_mpdu %d flags 0x%x\n",
sta->addr, arg->peer_max_mpdu, arg->peer_flags);
/* TODO: rxnss_override */
}
static void ath11k_peer_assoc_h_he(struct ath11k *ar,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
struct peer_assoc_params *arg)
{
const struct ieee80211_sta_he_cap *he_cap = &sta->he_cap;
u16 v;
if (!he_cap->has_he)
return;
arg->he_flag = true;
memcpy(&arg->peer_he_cap_macinfo, he_cap->he_cap_elem.mac_cap_info,
sizeof(arg->peer_he_cap_macinfo));
memcpy(&arg->peer_he_cap_phyinfo, he_cap->he_cap_elem.phy_cap_info,
sizeof(arg->peer_he_cap_phyinfo));
memcpy(&arg->peer_he_ops, &vif->bss_conf.he_operation,
sizeof(arg->peer_he_ops));
/* the top most byte is used to indicate BSS color info */
arg->peer_he_ops &= 0xffffff;
if (he_cap->he_cap_elem.phy_cap_info[6] &
IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
int bit = 7;
int nss, ru;
arg->peer_ppet.numss_m1 = he_cap->ppe_thres[0] &
IEEE80211_PPE_THRES_NSS_MASK;
arg->peer_ppet.ru_bit_mask =
(he_cap->ppe_thres[0] &
IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK) >>
IEEE80211_PPE_THRES_RU_INDEX_BITMASK_POS;
for (nss = 0; nss <= arg->peer_ppet.numss_m1; nss++) {
for (ru = 0; ru < 4; ru++) {
u32 val = 0;
int i;
if ((arg->peer_ppet.ru_bit_mask & BIT(ru)) == 0)
continue;
for (i = 0; i < 6; i++) {
val >>= 1;
val |= ((he_cap->ppe_thres[bit / 8] >>
(bit % 8)) & 0x1) << 5;
bit++;
}
arg->peer_ppet.ppet16_ppet8_ru3_ru0[nss] |=
val << (ru * 6);
}
}
}
if (he_cap->he_cap_elem.mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_TWT_RES)
arg->twt_responder = true;
if (he_cap->he_cap_elem.mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_TWT_REQ)
arg->twt_requester = true;
switch (sta->bandwidth) {
case IEEE80211_STA_RX_BW_160:
if (he_cap->he_cap_elem.phy_cap_info[0] &
IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G) {
v = le16_to_cpu(he_cap->he_mcs_nss_supp.rx_mcs_80p80);
arg->peer_he_rx_mcs_set[WMI_HECAP_TXRX_MCS_NSS_IDX_80_80] = v;
v = le16_to_cpu(he_cap->he_mcs_nss_supp.tx_mcs_80p80);
arg->peer_he_tx_mcs_set[WMI_HECAP_TXRX_MCS_NSS_IDX_80_80] = v;
arg->peer_he_mcs_count++;
}
v = le16_to_cpu(he_cap->he_mcs_nss_supp.rx_mcs_160);
arg->peer_he_rx_mcs_set[WMI_HECAP_TXRX_MCS_NSS_IDX_160] = v;
v = le16_to_cpu(he_cap->he_mcs_nss_supp.tx_mcs_160);
arg->peer_he_tx_mcs_set[WMI_HECAP_TXRX_MCS_NSS_IDX_160] = v;
arg->peer_he_mcs_count++;
/* fall through */
default:
v = le16_to_cpu(he_cap->he_mcs_nss_supp.rx_mcs_80);
arg->peer_he_rx_mcs_set[WMI_HECAP_TXRX_MCS_NSS_IDX_80] = v;
v = le16_to_cpu(he_cap->he_mcs_nss_supp.tx_mcs_80);
arg->peer_he_tx_mcs_set[WMI_HECAP_TXRX_MCS_NSS_IDX_80] = v;
arg->peer_he_mcs_count++;
break;
}
}
static void ath11k_peer_assoc_h_smps(struct ieee80211_sta *sta,
struct peer_assoc_params *arg)
{
const struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
int smps;
if (!ht_cap->ht_supported)
return;
smps = ht_cap->cap & IEEE80211_HT_CAP_SM_PS;
smps >>= IEEE80211_HT_CAP_SM_PS_SHIFT;
switch (smps) {
case WLAN_HT_CAP_SM_PS_STATIC:
arg->static_mimops_flag = true;
break;
case WLAN_HT_CAP_SM_PS_DYNAMIC:
arg->dynamic_mimops_flag = true;
break;
case WLAN_HT_CAP_SM_PS_DISABLED:
arg->spatial_mux_flag = true;
break;
default:
break;
}
}
static void ath11k_peer_assoc_h_qos(struct ath11k *ar,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
struct peer_assoc_params *arg)
{
struct ath11k_vif *arvif = (void *)vif->drv_priv;
switch (arvif->vdev_type) {
case WMI_VDEV_TYPE_AP:
if (sta->wme) {
/* TODO: Check WME vs QoS */
arg->is_wme_set = true;
arg->qos_flag = true;
}
if (sta->wme && sta->uapsd_queues) {
/* TODO: Check WME vs QoS */
arg->is_wme_set = true;
arg->apsd_flag = true;
arg->peer_rate_caps |= WMI_HOST_RC_UAPSD_FLAG;
}
break;
case WMI_VDEV_TYPE_STA:
if (sta->wme) {
arg->is_wme_set = true;
arg->qos_flag = true;
}
break;
default:
break;
}
ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "mac peer %pM qos %d\n",
sta->addr, arg->qos_flag);
}
static int ath11k_peer_assoc_qos_ap(struct ath11k *ar,
struct ath11k_vif *arvif,
struct ieee80211_sta *sta)
{
struct ap_ps_params params;
u32 max_sp;
u32 uapsd;
int ret;
lockdep_assert_held(&ar->conf_mutex);
params.vdev_id = arvif->vdev_id;
ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "mac uapsd_queues 0x%x max_sp %d\n",
sta->uapsd_queues, sta->max_sp);
uapsd = 0;
if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO)
uapsd |= WMI_AP_PS_UAPSD_AC3_DELIVERY_EN |
WMI_AP_PS_UAPSD_AC3_TRIGGER_EN;
if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VI)
uapsd |= WMI_AP_PS_UAPSD_AC2_DELIVERY_EN |
WMI_AP_PS_UAPSD_AC2_TRIGGER_EN;
if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BK)
uapsd |= WMI_AP_PS_UAPSD_AC1_DELIVERY_EN |
WMI_AP_PS_UAPSD_AC1_TRIGGER_EN;
if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BE)
uapsd |= WMI_AP_PS_UAPSD_AC0_DELIVERY_EN |
WMI_AP_PS_UAPSD_AC0_TRIGGER_EN;
max_sp = 0;
if (sta->max_sp < MAX_WMI_AP_PS_PEER_PARAM_MAX_SP)
max_sp = sta->max_sp;
params.param = WMI_AP_PS_PEER_PARAM_UAPSD;
params.value = uapsd;
ret = ath11k_wmi_send_set_ap_ps_param_cmd(ar, sta->addr, ¶ms);
if (ret)
goto err;
params.param = WMI_AP_PS_PEER_PARAM_MAX_SP;
params.value = max_sp;
ret = ath11k_wmi_send_set_ap_ps_param_cmd(ar, sta->addr, ¶ms);
if (ret)
goto err;
/* TODO revisit during testing */
params.param = WMI_AP_PS_PEER_PARAM_SIFS_RESP_FRMTYPE;
params.value = DISABLE_SIFS_RESPONSE_TRIGGER;
ret = ath11k_wmi_send_set_ap_ps_param_cmd(ar, sta->addr, ¶ms);
if (ret)
goto err;
params.param = WMI_AP_PS_PEER_PARAM_SIFS_RESP_UAPSD;
params.value = DISABLE_SIFS_RESPONSE_TRIGGER;
ret = ath11k_wmi_send_set_ap_ps_param_cmd(ar, sta->addr, ¶ms);
if (ret)
goto err;
return 0;
err:
ath11k_warn(ar->ab, "failed to set ap ps peer param %d for vdev %i: %d\n",
params.param, arvif->vdev_id, ret);
return ret;
}
static bool ath11k_mac_sta_has_ofdm_only(struct ieee80211_sta *sta)
{
return sta->supp_rates[NL80211_BAND_2GHZ] >>
ATH11K_MAC_FIRST_OFDM_RATE_IDX;
}
static enum wmi_phy_mode ath11k_mac_get_phymode_vht(struct ath11k *ar,
struct ieee80211_sta *sta)
{
if (sta->bandwidth == IEEE80211_STA_RX_BW_160) {
switch (sta->vht_cap.cap &
IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) {
case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ:
return MODE_11AC_VHT160;
case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ:
return MODE_11AC_VHT80_80;
default:
/* not sure if this is a valid case? */
return MODE_11AC_VHT160;
}
}
if (sta->bandwidth == IEEE80211_STA_RX_BW_80)
return MODE_11AC_VHT80;
if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
return MODE_11AC_VHT40;
if (sta->bandwidth == IEEE80211_STA_RX_BW_20)
return MODE_11AC_VHT20;
return MODE_UNKNOWN;
}
static enum wmi_phy_mode ath11k_mac_get_phymode_he(struct ath11k *ar,
struct ieee80211_sta *sta)
{
if (sta->bandwidth == IEEE80211_STA_RX_BW_160) {
if (sta->he_cap.he_cap_elem.phy_cap_info[0] &
IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G)
return MODE_11AX_HE160;
else if (sta->he_cap.he_cap_elem.phy_cap_info[0] &
IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G)
return MODE_11AX_HE80_80;
/* not sure if this is a valid case? */
return MODE_11AX_HE160;
}
if (sta->bandwidth == IEEE80211_STA_RX_BW_80)
return MODE_11AX_HE80;
if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
return MODE_11AX_HE40;
if (sta->bandwidth == IEEE80211_STA_RX_BW_20)
return MODE_11AX_HE20;
return MODE_UNKNOWN;
}
static void ath11k_peer_assoc_h_phymode(struct ath11k *ar,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
struct peer_assoc_params *arg)
{
struct ath11k_vif *arvif = (void *)vif->drv_priv;
struct cfg80211_chan_def def;
enum nl80211_band band;
const u8 *ht_mcs_mask;
const u16 *vht_mcs_mask;
enum wmi_phy_mode phymode = MODE_UNKNOWN;
if (WARN_ON(ath11k_mac_vif_chan(vif, &def)))
return;
band = def.chan->band;
ht_mcs_mask = arvif->bitrate_mask.control[band].ht_mcs;
vht_mcs_mask = arvif->bitrate_mask.control[band].vht_mcs;
switch (band) {
case NL80211_BAND_2GHZ:
if (sta->he_cap.has_he) {
if (sta->bandwidth == IEEE80211_STA_RX_BW_80)
phymode = MODE_11AX_HE80_2G;
else if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
phymode = MODE_11AX_HE40_2G;
else
phymode = MODE_11AX_HE20_2G;
} else if (sta->vht_cap.vht_supported &&
!ath11k_peer_assoc_h_vht_masked(vht_mcs_mask)) {
if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
phymode = MODE_11AC_VHT40;
else
phymode = MODE_11AC_VHT20;
} else if (sta->ht_cap.ht_supported &&
!ath11k_peer_assoc_h_ht_masked(ht_mcs_mask)) {
if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
phymode = MODE_11NG_HT40;
else
phymode = MODE_11NG_HT20;
} else if (ath11k_mac_sta_has_ofdm_only(sta)) {
phymode = MODE_11G;
} else {
phymode = MODE_11B;
}
break;
case NL80211_BAND_5GHZ:
/* Check HE first */
if (sta->he_cap.has_he) {
phymode = ath11k_mac_get_phymode_he(ar, sta);
} else if (sta->vht_cap.vht_supported &&
!ath11k_peer_assoc_h_vht_masked(vht_mcs_mask)) {
phymode = ath11k_mac_get_phymode_vht(ar, sta);
} else if (sta->ht_cap.ht_supported &&
!ath11k_peer_assoc_h_ht_masked(ht_mcs_mask)) {
if (sta->bandwidth >= IEEE80211_STA_RX_BW_40)
phymode = MODE_11NA_HT40;
else
phymode = MODE_11NA_HT20;
} else {
phymode = MODE_11A;
}
break;
default:
break;
}
ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "mac peer %pM phymode %s\n",
sta->addr, ath11k_wmi_phymode_str(phymode));
arg->peer_phymode = phymode;
WARN_ON(phymode == MODE_UNKNOWN);
}
static void ath11k_peer_assoc_prepare(struct ath11k *ar,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
struct peer_assoc_params *arg,
bool reassoc)
{
lockdep_assert_held(&ar->conf_mutex);
memset(arg, 0, sizeof(*arg));
reinit_completion(&ar->peer_assoc_done);
arg->peer_new_assoc = !reassoc;
ath11k_peer_assoc_h_basic(ar, vif, sta, arg);
ath11k_peer_assoc_h_crypto(ar, vif, sta, arg);
ath11k_peer_assoc_h_rates(ar, vif, sta, arg);
ath11k_peer_assoc_h_ht(ar, vif, sta, arg);
ath11k_peer_assoc_h_vht(ar, vif, sta, arg);
ath11k_peer_assoc_h_he(ar, vif, sta, arg);
ath11k_peer_assoc_h_qos(ar, vif, sta, arg);
ath11k_peer_assoc_h_phymode(ar, vif, sta, arg);
ath11k_peer_assoc_h_smps(sta, arg);
/* TODO: amsdu_disable req? */
}
static int ath11k_setup_peer_smps(struct ath11k *ar, struct ath11k_vif *arvif,
const u8 *addr,
const struct ieee80211_sta_ht_cap *ht_cap)
{
int smps;
if (!ht_cap->ht_supported)
return 0;
smps = ht_cap->cap & IEEE80211_HT_CAP_SM_PS;
smps >>= IEEE80211_HT_CAP_SM_PS_SHIFT;
if (smps >= ARRAY_SIZE(ath11k_smps_map))
return -EINVAL;
return ath11k_wmi_set_peer_param(ar, addr, arvif->vdev_id,
WMI_PEER_MIMO_PS_STATE,
ath11k_smps_map[smps]);
}
static void ath11k_bss_assoc(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *bss_conf)
{
struct ath11k *ar = hw->priv;
struct ath11k_vif *arvif = (void *)vif->drv_priv;
struct peer_assoc_params peer_arg;
struct ieee80211_sta *ap_sta;
int ret;
lockdep_assert_held(&ar->conf_mutex);
ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "mac vdev %i assoc bssid %pM aid %d\n",
arvif->vdev_id, arvif->bssid, arvif->aid);
rcu_read_lock();
ap_sta = ieee80211_find_sta(vif, bss_conf->bssid);
if (!ap_sta) {
ath11k_warn(ar->ab, "failed to find station entry for bss %pM vdev %i\n",
bss_conf->bssid, arvif->vdev_id);
rcu_read_unlock();
return;
}
ath11k_peer_assoc_prepare(ar, vif, ap_sta, &peer_arg, false);
rcu_read_unlock();
ret = ath11k_wmi_send_peer_assoc_cmd(ar, &peer_arg);
if (ret) {
ath11k_warn(ar->ab, "failed to run peer assoc for %pM vdev %i: %d\n",
bss_conf->bssid, arvif->vdev_id, ret);
return;
}
if (!wait_for_completion_timeout(&ar->peer_assoc_done, 1 * HZ)) {
ath11k_warn(ar->ab, "failed to get peer assoc conf event for %pM vdev %i\n",
bss_conf->bssid, arvif->vdev_id);
return;
}
ret = ath11k_setup_peer_smps(ar, arvif, bss_conf->bssid,
&ap_sta->ht_cap);
if (ret) {
ath11k_warn(ar->ab, "failed to setup peer SMPS for vdev %d: %d\n",
arvif->vdev_id, ret);
return;
}
WARN_ON(arvif->is_up);
arvif->aid = bss_conf->aid;
ether_addr_copy(arvif->bssid, bss_conf->bssid);
ret = ath11k_wmi_vdev_up(ar, arvif->vdev_id, arvif->aid, arvif->bssid);
if (ret) {
ath11k_warn(ar->ab, "failed to set vdev %d up: %d\n",
arvif->vdev_id, ret);
return;
}
arvif->is_up = true;
ath11k_dbg(ar->ab, ATH11K_DBG_MAC,
"mac vdev %d up (associated) bssid %pM aid %d\n",
arvif->vdev_id, bss_conf->bssid, bss_conf->aid);
/* Authorize BSS Peer */
ret = ath11k_wmi_set_peer_param(ar, arvif->bssid,
arvif->vdev_id,
WMI_PEER_AUTHORIZE,
1);
if (ret)
ath11k_warn(ar->ab, "Unable to authorize BSS peer: %d\n", ret);
ret = ath11k_wmi_send_obss_spr_cmd(ar, arvif->vdev_id,
&bss_conf->he_obss_pd);
if (ret)
ath11k_warn(ar->ab, "failed to set vdev %i OBSS PD parameters: %d\n",
arvif->vdev_id, ret);
}
static void ath11k_bss_disassoc(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct ath11k *ar = hw->priv;
struct ath11k_vif *arvif = (void *)vif->drv_priv;
int ret;
lockdep_assert_held(&ar->conf_mutex);
ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "mac vdev %i disassoc bssid %pM\n",
arvif->vdev_id, arvif->bssid);
ret = ath11k_wmi_vdev_down(ar, arvif->vdev_id);
if (ret)
ath11k_warn(ar->ab, "failed to down vdev %i: %d\n",
arvif->vdev_id, ret);
arvif->is_up = false;
/* TODO: cancel connection_loss_work */
}
static u32 ath11k_mac_get_rate_hw_value(int bitrate)
{
u32 preamble;
u16 hw_value;
int rate;
size_t i;
if (ath11k_mac_bitrate_is_cck(bitrate))
preamble = WMI_RATE_PREAMBLE_CCK;
else
preamble = WMI_RATE_PREAMBLE_OFDM;
for (i = 0; i < ARRAY_SIZE(ath11k_legacy_rates); i++) {
if (ath11k_legacy_rates[i].bitrate != bitrate)
continue;
hw_value = ath11k_legacy_rates[i].hw_value;
rate = ATH11K_HW_RATE_CODE(hw_value, 0, preamble);
return rate;
}
return -EINVAL;
}
static void ath11k_recalculate_mgmt_rate(struct ath11k *ar,
struct ieee80211_vif *vif,
struct cfg80211_chan_def *def)
{
struct ath11k_vif *arvif = (void *)vif->drv_priv;
const struct ieee80211_supported_band *sband;
u8 basic_rate_idx;
int hw_rate_code;
u32 vdev_param;
u16 bitrate;
int ret;
lockdep_assert_held(&ar->conf_mutex);
sband = ar->hw->wiphy->bands[def->chan->band];
basic_rate_idx = ffs(vif->bss_conf.basic_rates) - 1;
bitrate = sband->bitrates[basic_rate_idx].bitrate;
hw_rate_code = ath11k_mac_get_rate_hw_value(bitrate);
if (hw_rate_code < 0) {
ath11k_warn(ar->ab, "bitrate not supported %d\n", bitrate);
return;
}
vdev_param = WMI_VDEV_PARAM_MGMT_RATE;
ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id, vdev_param,
hw_rate_code);
if (ret)
ath11k_warn(ar->ab, "failed to set mgmt tx rate %d\n", ret);
vdev_param = WMI_VDEV_PARAM_BEACON_RATE;
ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id, vdev_param,
hw_rate_code);
if (ret)
ath11k_warn(ar->ab, "failed to set beacon tx rate %d\n", ret);
}
static void ath11k_mac_op_bss_info_changed(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *info,
u32 changed)
{
struct ath11k *ar = hw->priv;
struct ath11k_vif *arvif = ath11k_vif_to_arvif(vif);
struct cfg80211_chan_def def;
u32 param_id, param_value;
enum nl80211_band band;
u32 vdev_param;
int mcast_rate;
u32 preamble;
u16 hw_value;
u16 bitrate;
int ret = 0;
u8 rateidx;
u32 rate;
mutex_lock(&ar->conf_mutex);
if (changed & BSS_CHANGED_BEACON_INT) {
arvif->beacon_interval = info->beacon_int;
param_id = WMI_VDEV_PARAM_BEACON_INTERVAL;
ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id,
param_id,
arvif->beacon_interval);
if (ret)
ath11k_warn(ar->ab, "Failed to set beacon interval for VDEV: %d\n",
arvif->vdev_id);
else
ath11k_dbg(ar->ab, ATH11K_DBG_MAC,
"Beacon interval: %d set for VDEV: %d\n",
arvif->beacon_interval, arvif->vdev_id);
}
if (changed & BSS_CHANGED_BEACON) {
param_id = WMI_PDEV_PARAM_BEACON_TX_MODE;
param_value = WMI_BEACON_STAGGERED_MODE;
ret = ath11k_wmi_pdev_set_param(ar, param_id,
param_value, ar->pdev->pdev_id);
if (ret)
ath11k_warn(ar->ab, "Failed to set beacon mode for VDEV: %d\n",
arvif->vdev_id);
else
ath11k_dbg(ar->ab, ATH11K_DBG_MAC,
"Set staggered beacon mode for VDEV: %d\n",
arvif->vdev_id);
ret = ath11k_mac_setup_bcn_tmpl(arvif);
if (ret)
ath11k_warn(ar->ab, "failed to update bcn template: %d\n",
ret);
}
if (changed & (BSS_CHANGED_BEACON_INFO | BSS_CHANGED_BEACON)) {
arvif->dtim_period = info->dtim_period;
param_id = WMI_VDEV_PARAM_DTIM_PERIOD;
ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id,
param_id,
arvif->dtim_period);
if (ret)
ath11k_warn(ar->ab, "Failed to set dtim period for VDEV %d: %i\n",
arvif->vdev_id, ret);
else
ath11k_dbg(ar->ab, ATH11K_DBG_MAC,
"DTIM period: %d set for VDEV: %d\n",
arvif->dtim_period, arvif->vdev_id);
}
if (changed & BSS_CHANGED_SSID &&
vif->type == NL80211_IFTYPE_AP) {
arvif->u.ap.ssid_len = info->ssid_len;
if (info->ssid_len)
memcpy(arvif->u.ap.ssid, info->ssid, info->ssid_len);
arvif->u.ap.hidden_ssid = info->hidden_ssid;
}
if (changed & BSS_CHANGED_BSSID && !is_zero_ether_addr(info->bssid))
ether_addr_copy(arvif->bssid, info->bssid);
if (changed & BSS_CHANGED_BEACON_ENABLED)
ath11k_control_beaconing(arvif, info);
if (changed & BSS_CHANGED_ERP_CTS_PROT) {
u32 cts_prot;
cts_prot = !!(info->use_cts_prot);
param_id = WMI_VDEV_PARAM_PROTECTION_MODE;
if (arvif->is_started) {
ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id,
param_id, cts_prot);
if (ret)
ath11k_warn(ar->ab, "Failed to set CTS prot for VDEV: %d\n",
arvif->vdev_id);
else
ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "Set CTS prot: %d for VDEV: %d\n",
cts_prot, arvif->vdev_id);
} else {
ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "defer protection mode setup, vdev is not ready yet\n");
}
}
if (changed & BSS_CHANGED_ERP_SLOT) {
u32 slottime;
if (info->use_short_slot)
slottime = WMI_VDEV_SLOT_TIME_SHORT; /* 9us */
else
slottime = WMI_VDEV_SLOT_TIME_LONG; /* 20us */
param_id = WMI_VDEV_PARAM_SLOT_TIME;
ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id,
param_id, slottime);
if (ret)
ath11k_warn(ar->ab, "Failed to set erp slot for VDEV: %d\n",
arvif->vdev_id);
else
ath11k_dbg(ar->ab, ATH11K_DBG_MAC,
"Set slottime: %d for VDEV: %d\n",
slottime, arvif->vdev_id);
}
if (changed & BSS_CHANGED_ERP_PREAMBLE) {
u32 preamble;
if (info->use_short_preamble)
preamble = WMI_VDEV_PREAMBLE_SHORT;
else
preamble = WMI_VDEV_PREAMBLE_LONG;
param_id = WMI_VDEV_PARAM_PREAMBLE;
ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id,
param_id, preamble);
if (ret)
ath11k_warn(ar->ab, "Failed to set preamble for VDEV: %d\n",
arvif->vdev_id);
else
ath11k_dbg(ar->ab, ATH11K_DBG_MAC,
"Set preamble: %d for VDEV: %d\n",
preamble, arvif->vdev_id);
}
if (changed & BSS_CHANGED_ASSOC) {
if (info->assoc)
ath11k_bss_assoc(hw, vif, info);
else
ath11k_bss_disassoc(hw, vif);
}
if (changed & BSS_CHANGED_TXPOWER) {
ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "mac vdev_id %i txpower %d\n",
arvif->vdev_id, info->txpower);
arvif->txpower = info->txpower;
ath11k_mac_txpower_recalc(ar);
}
if (changed & BSS_CHANGED_MCAST_RATE &&
!ath11k_mac_vif_chan(arvif->vif, &def)) {
band = def.chan->band;
mcast_rate = vif->bss_conf.mcast_rate[band];
if (mcast_rate > 0)
rateidx = mcast_rate - 1;
else
rateidx = ffs(vif->bss_conf.basic_rates) - 1;
if (ar->pdev->cap.supported_bands & WMI_HOST_WLAN_5G_CAP)
rateidx += ATH11K_MAC_FIRST_OFDM_RATE_IDX;
bitrate = ath11k_legacy_rates[rateidx].bitrate;
hw_value = ath11k_legacy_rates[rateidx].hw_value;
if (ath11k_mac_bitrate_is_cck(bitrate))
preamble = WMI_RATE_PREAMBLE_CCK;
else
preamble = WMI_RATE_PREAMBLE_OFDM;
rate = ATH11K_HW_RATE_CODE(hw_value, 0, preamble);
ath11k_dbg(ar->ab, ATH11K_DBG_MAC,
"mac vdev %d mcast_rate %x\n",
arvif->vdev_id, rate);
vdev_param = WMI_VDEV_PARAM_MCAST_DATA_RATE;
ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id,
vdev_param, rate);
if (ret)
ath11k_warn(ar->ab,
"failed to set mcast rate on vdev %i: %d\n",
arvif->vdev_id, ret);
vdev_param = WMI_VDEV_PARAM_BCAST_DATA_RATE;
ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id,
vdev_param, rate);
if (ret)
ath11k_warn(ar->ab,
"failed to set bcast rate on vdev %i: %d\n",
arvif->vdev_id, ret);
}
if (changed & BSS_CHANGED_BASIC_RATES &&
!ath11k_mac_vif_chan(arvif->vif, &def))
ath11k_recalculate_mgmt_rate(ar, vif, &def);
if (changed & BSS_CHANGED_TWT) {
if (info->twt_requester || info->twt_responder)
ath11k_wmi_send_twt_enable_cmd(ar, ar->pdev_idx);
else
ath11k_wmi_send_twt_disable_cmd(ar, ar->pdev_idx);
}
if (changed & BSS_CHANGED_HE_OBSS_PD)
ath11k_wmi_send_obss_spr_cmd(ar, arvif->vdev_id,
&info->he_obss_pd);
mutex_unlock(&ar->conf_mutex);
}
void __ath11k_mac_scan_finish(struct ath11k *ar)
{
lockdep_assert_held(&ar->data_lock);
switch (ar->scan.state) {
case ATH11K_SCAN_IDLE:
break;
case ATH11K_SCAN_RUNNING:
case ATH11K_SCAN_ABORTING:
if (!ar->scan.is_roc) {
struct cfg80211_scan_info info = {
.aborted = (ar->scan.state ==
ATH11K_SCAN_ABORTING),
};
ieee80211_scan_completed(ar->hw, &info);
} else if (ar->scan.roc_notify) {
ieee80211_remain_on_channel_expired(ar->hw);
}
/* fall through */
case ATH11K_SCAN_STARTING:
ar->scan.state = ATH11K_SCAN_IDLE;
ar->scan_channel = NULL;
ar->scan.roc_freq = 0;
cancel_delayed_work(&ar->scan.timeout);
complete(&ar->scan.completed);
break;
}
}
void ath11k_mac_scan_finish(struct ath11k *ar)
{
spin_lock_bh(&ar->data_lock);
__ath11k_mac_scan_finish(ar);
spin_unlock_bh(&ar->data_lock);
}
static int ath11k_scan_stop(struct ath11k *ar)
{
struct scan_cancel_param arg = {
.req_type = WLAN_SCAN_CANCEL_SINGLE,
.scan_id = ATH11K_SCAN_ID,
};
int ret;
lockdep_assert_held(&ar->conf_mutex);
/* TODO: Fill other STOP Params */
arg.pdev_id = ar->pdev->pdev_id;
ret = ath11k_wmi_send_scan_stop_cmd(ar, &arg);
if (ret) {
ath11k_warn(ar->ab, "failed to stop wmi scan: %d\n", ret);
goto out;
}
ret = wait_for_completion_timeout(&ar->scan.completed, 3 * HZ);
if (ret == 0) {
ath11k_warn(ar->ab,
"failed to receive scan abort comple: timed out\n");
ret = -ETIMEDOUT;
} else if (ret > 0) {
ret = 0;
}
out:
/* Scan state should be updated upon scan completion but in case
* firmware fails to deliver the event (for whatever reason) it is
* desired to clean up scan state anyway. Firmware may have just
* dropped the scan completion event delivery due to transport pipe
* being overflown with data and/or it can recover on its own before
* next scan request is submitted.
*/
spin_lock_bh(&ar->data_lock);
if (ar->scan.state != ATH11K_SCAN_IDLE)
__ath11k_mac_scan_finish(ar);
spin_unlock_bh(&ar->data_lock);
return ret;
}
static void ath11k_scan_abort(struct ath11k *ar)
{
int ret;
lockdep_assert_held(&ar->conf_mutex);
spin_lock_bh(&ar->data_lock);
switch (ar->scan.state) {
case ATH11K_SCAN_IDLE:
/* This can happen if timeout worker kicked in and called
* abortion while scan completion was being processed.
*/
break;
case ATH11K_SCAN_STARTING:
case ATH11K_SCAN_ABORTING:
ath11k_warn(ar->ab, "refusing scan abortion due to invalid scan state: %d\n",
ar->scan.state);
break;
case ATH11K_SCAN_RUNNING:
ar->scan.state = ATH11K_SCAN_ABORTING;
spin_unlock_bh(&ar->data_lock);
ret = ath11k_scan_stop(ar);
if (ret)
ath11k_warn(ar->ab, "failed to abort scan: %d\n", ret);
spin_lock_bh(&ar->data_lock);
break;
}
spin_unlock_bh(&ar->data_lock);
}
static void ath11k_scan_timeout_work(struct work_struct *work)
{
struct ath11k *ar = container_of(work, struct ath11k,
scan.timeout.work);
mutex_lock(&ar->conf_mutex);
ath11k_scan_abort(ar);
mutex_unlock(&ar->conf_mutex);
}
static int ath11k_start_scan(struct ath11k *ar,
struct scan_req_params *arg)
{
int ret;
lockdep_assert_held(&ar->conf_mutex);
ret = ath11k_wmi_send_scan_start_cmd(ar, arg);
if (ret)
return ret;
ret = wait_for_completion_timeout(&ar->scan.started, 1 * HZ);
if (ret == 0) {
ret = ath11k_scan_stop(ar);
if (ret)
ath11k_warn(ar->ab, "failed to stop scan: %d\n", ret);
return -ETIMEDOUT;
}
/* If we failed to start the scan, return error code at
* this point. This is probably due to some issue in the
* firmware, but no need to wedge the driver due to that...
*/
spin_lock_bh(&ar->data_lock);
if (ar->scan.state == ATH11K_SCAN_IDLE) {
spin_unlock_bh(&ar->data_lock);
return -EINVAL;
}
spin_unlock_bh(&ar->data_lock);
return 0;
}
static int ath11k_mac_op_hw_scan(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_scan_request *hw_req)
{
struct ath11k *ar = hw->priv;
struct ath11k_vif *arvif = ath11k_vif_to_arvif(vif);
struct cfg80211_scan_request *req = &hw_req->req;
struct scan_req_params arg;
int ret = 0;
int i;
mutex_lock(&ar->conf_mutex);
spin_lock_bh(&ar->data_lock);
switch (ar->scan.state) {
case ATH11K_SCAN_IDLE:
reinit_completion(&ar->scan.started);
reinit_completion(&ar->scan.completed);
ar->scan.state = ATH11K_SCAN_STARTING;
ar->scan.is_roc = false;
ar->scan.vdev_id = arvif->vdev_id;
ret = 0;
break;
case ATH11K_SCAN_STARTING:
case ATH11K_SCAN_RUNNING:
case ATH11K_SCAN_ABORTING:
ret = -EBUSY;
break;
}
spin_unlock_bh(&ar->data_lock);
if (ret)
goto exit;
memset(&arg, 0, sizeof(arg));
ath11k_wmi_start_scan_init(ar, &arg);
arg.vdev_id = arvif->vdev_id;
arg.scan_id = ATH11K_SCAN_ID;
if (req->ie_len) {
arg.extraie.len = req->ie_len;
arg.extraie.ptr = kzalloc(req->ie_len, GFP_KERNEL);
memcpy(arg.extraie.ptr, req->ie, req->ie_len);
}
if (req->n_ssids) {
arg.num_ssids = req->n_ssids;
for (i = 0; i < arg.num_ssids; i++) {
arg.ssid[i].length = req->ssids[i].ssid_len;
memcpy(&arg.ssid[i].ssid, req->ssids[i].ssid,
req->ssids[i].ssid_len);
}
} else {
arg.scan_flags |= WMI_SCAN_FLAG_PASSIVE;
}
if (req->n_channels) {
arg.num_chan = req->n_channels;
for (i = 0; i < arg.num_chan; i++)
arg.chan_list[i] = req->channels[i]->center_freq;
}
ret = ath11k_start_scan(ar, &arg);
if (ret) {
ath11k_warn(ar->ab, "failed to start hw scan: %d\n", ret);
spin_lock_bh(&ar->data_lock);
ar->scan.state = ATH11K_SCAN_IDLE;
spin_unlock_bh(&ar->data_lock);
}
/* Add a 200ms margin to account for event/command processing */
ieee80211_queue_delayed_work(ar->hw, &ar->scan.timeout,
msecs_to_jiffies(arg.max_scan_time +
ATH11K_MAC_SCAN_TIMEOUT_MSECS));
exit:
if (req->ie_len)
kfree(arg.extraie.ptr);
mutex_unlock(&ar->conf_mutex);
return ret;
}
static void ath11k_mac_op_cancel_hw_scan(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct ath11k *ar = hw->priv;
mutex_lock(&ar->conf_mutex);
ath11k_scan_abort(ar);
mutex_unlock(&ar->conf_mutex);
cancel_delayed_work_sync(&ar->scan.timeout);
}
static int ath11k_install_key(struct ath11k_vif *arvif,
struct ieee80211_key_conf *key,
enum set_key_cmd cmd,
const u8 *macaddr, u32 flags)
{
int ret;
struct ath11k *ar = arvif->ar;
struct wmi_vdev_install_key_arg arg = {
.vdev_id = arvif->vdev_id,
.key_idx = key->keyidx,
.key_len = key->keylen,
.key_data = key->key,
.key_flags = flags,
.macaddr = macaddr,
};
lockdep_assert_held(&arvif->ar->conf_mutex);
reinit_completion(&ar->install_key_done);
if (cmd == DISABLE_KEY) {
/* TODO: Check if FW expects value other than NONE for del */
/* arg.key_cipher = WMI_CIPHER_NONE; */
arg.key_len = 0;
arg.key_data = NULL;
goto install;
}
switch (key->cipher) {
case WLAN_CIPHER_SUITE_CCMP:
arg.key_cipher = WMI_CIPHER_AES_CCM;
/* TODO: Re-check if flag is valid */
key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV_MGMT;
break;
case WLAN_CIPHER_SUITE_TKIP:
arg.key_cipher = WMI_CIPHER_TKIP;
arg.key_txmic_len = 8;
arg.key_rxmic_len = 8;
break;
case WLAN_CIPHER_SUITE_CCMP_256:
arg.key_cipher = WMI_CIPHER_AES_CCM;
break;
case WLAN_CIPHER_SUITE_GCMP:
case WLAN_CIPHER_SUITE_GCMP_256:
arg.key_cipher = WMI_CIPHER_AES_GCM;
break;
default:
ath11k_warn(ar->ab, "cipher %d is not supported\n", key->cipher);
return -EOPNOTSUPP;
}
install:
ret = ath11k_wmi_vdev_install_key(arvif->ar, &arg);
if (ret)
return ret;
if (!wait_for_completion_timeout(&ar->install_key_done, 1 * HZ))
return -ETIMEDOUT;
return ar->install_key_status ? -EINVAL : 0;
}
static int ath11k_clear_peer_keys(struct ath11k_vif *arvif,
const u8 *addr)
{
struct ath11k *ar = arvif->ar;
struct ath11k_base *ab = ar->ab;
struct ath11k_peer *peer;
int first_errno = 0;
int ret;
int i;
u32 flags = 0;
lockdep_assert_held(&ar->conf_mutex);
spin_lock_bh(&ab->base_lock);
peer = ath11k_peer_find(ab, arvif->vdev_id, addr);
spin_unlock_bh(&ab->base_lock);
if (!peer)
return -ENOENT;
for (i = 0; i < ARRAY_SIZE(peer->keys); i++) {
if (!peer->keys[i])
continue;
/* key flags are not required to delete the key */
ret = ath11k_install_key(arvif, peer->keys[i],
DISABLE_KEY, addr, flags);
if (ret < 0 && first_errno == 0)
first_errno = ret;
if (ret < 0)
ath11k_warn(ab, "failed to remove peer key %d: %d\n",
i, ret);
spin_lock_bh(&ab->base_lock);
peer->keys[i] = NULL;
spin_unlock_bh(&ab->base_lock);
}
return first_errno;
}
static int ath11k_mac_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
struct ieee80211_vif *vif, struct ieee80211_sta *sta,
struct ieee80211_key_conf *key)
{
struct ath11k *ar = hw->priv;
struct ath11k_base *ab = ar->ab;
struct ath11k_vif *arvif = ath11k_vif_to_arvif(vif);
struct ath11k_peer *peer;
const u8 *peer_addr;
int ret = 0;
u32 flags = 0;
/* BIP needs to be done in software */
if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256 ||
key->cipher == WLAN_CIPHER_SUITE_BIP_CMAC_256)
return 1;
if (key->keyidx > WMI_MAX_KEY_INDEX)
return -ENOSPC;
mutex_lock(&ar->conf_mutex);
if (sta)
peer_addr = sta->addr;
else if (arvif->vdev_type == WMI_VDEV_TYPE_STA)
peer_addr = vif->bss_conf.bssid;
else
peer_addr = vif->addr;
key->hw_key_idx = key->keyidx;
/* the peer should not disappear in mid-way (unless FW goes awry) since
* we already hold conf_mutex. we just make sure its there now.
*/
spin_lock_bh(&ab->base_lock);
peer = ath11k_peer_find(ab, arvif->vdev_id, peer_addr);
spin_unlock_bh(&ab->base_lock);
if (!peer) {
if (cmd == SET_KEY) {
ath11k_warn(ab, "cannot install key for non-existent peer %pM\n",
peer_addr);
ret = -EOPNOTSUPP;
goto exit;
} else {
/* if the peer doesn't exist there is no key to disable
* anymore
*/
goto exit;
}
}
if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
flags |= WMI_KEY_PAIRWISE;
else
flags |= WMI_KEY_GROUP;
ret = ath11k_install_key(arvif, key, cmd, peer_addr, flags);
if (ret) {
ath11k_warn(ab, "ath11k_install_key failed (%d)\n", ret);
goto exit;
}
spin_lock_bh(&ab->base_lock);
peer = ath11k_peer_find(ab, arvif->vdev_id, peer_addr);
if (peer && cmd == SET_KEY)
peer->keys[key->keyidx] = key;
else if (peer && cmd == DISABLE_KEY)
peer->keys[key->keyidx] = NULL;
else if (!peer)
/* impossible unless FW goes crazy */
ath11k_warn(ab, "peer %pM disappeared!\n", peer_addr);
spin_unlock_bh(&ab->base_lock);
exit:
mutex_unlock(&ar->conf_mutex);
return ret;
}
static int
ath11k_mac_bitrate_mask_num_vht_rates(struct ath11k *ar,
enum nl80211_band band,
const struct cfg80211_bitrate_mask *mask)
{
int num_rates = 0;
int i;
for (i = 0; i < ARRAY_SIZE(mask->control[band].vht_mcs); i++)
num_rates += hweight16(mask->control[band].vht_mcs[i]);
return num_rates;
}
static int
ath11k_mac_set_peer_vht_fixed_rate(struct ath11k_vif *arvif,
struct ieee80211_sta *sta,
const struct cfg80211_bitrate_mask *mask,
enum nl80211_band band)
{
struct ath11k *ar = arvif->ar;
u8 vht_rate, nss;
u32 rate_code;
int ret, i;
lockdep_assert_held(&ar->conf_mutex);
nss = 0;
for (i = 0; i < ARRAY_SIZE(mask->control[band].vht_mcs); i++) {
if (hweight16(mask->control[band].vht_mcs[i]) == 1) {
nss = i + 1;
vht_rate = ffs(mask->control[band].vht_mcs[i]) - 1;
}
}
if (!nss) {
ath11k_warn(ar->ab, "No single VHT Fixed rate found to set for %pM",
sta->addr);
return -EINVAL;
}
ath11k_dbg(ar->ab, ATH11K_DBG_MAC,
"Setting Fixed VHT Rate for peer %pM. Device will not switch to any other selected rates",
sta->addr);
rate_code = ATH11K_HW_RATE_CODE(vht_rate, nss - 1,
WMI_RATE_PREAMBLE_VHT);
ret = ath11k_wmi_set_peer_param(ar, sta->addr,
arvif->vdev_id,
WMI_PEER_PARAM_FIXED_RATE,
rate_code);
if (ret)
ath11k_warn(ar->ab,
"failed to update STA %pM Fixed Rate %d: %d\n",
sta->addr, rate_code, ret);
return ret;
}
static int ath11k_station_assoc(struct ath11k *ar,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
bool reassoc)
{
struct ath11k_vif *arvif = ath11k_vif_to_arvif(vif);
struct peer_assoc_params peer_arg;
int ret = 0;
struct cfg80211_chan_def def;
enum nl80211_band band;
struct cfg80211_bitrate_mask *mask;
u8 num_vht_rates;
lockdep_assert_held(&ar->conf_mutex);
if (WARN_ON(ath11k_mac_vif_chan(vif, &def)))
return -EPERM;
band = def.chan->band;
mask = &arvif->bitrate_mask;
ath11k_peer_assoc_prepare(ar, vif, sta, &peer_arg, reassoc);
ret = ath11k_wmi_send_peer_assoc_cmd(ar, &peer_arg);
if (ret) {
ath11k_warn(ar->ab, "failed to run peer assoc for STA %pM vdev %i: %d\n",
sta->addr, arvif->vdev_id, ret);
return ret;
}
if (!wait_for_completion_timeout(&ar->peer_assoc_done, 1 * HZ)) {
ath11k_warn(ar->ab, "failed to get peer assoc conf event for %pM vdev %i\n",
sta->addr, arvif->vdev_id);
return -ETIMEDOUT;
}
num_vht_rates = ath11k_mac_bitrate_mask_num_vht_rates(ar, band, mask);
/* If single VHT rate is configured (by set_bitrate_mask()),
* peer_assoc will disable VHT. This is now enabled by a peer specific
* fixed param.
* Note that all other rates and NSS will be disabled for this peer.
*/
if (sta->vht_cap.vht_supported && num_vht_rates == 1) {
ret = ath11k_mac_set_peer_vht_fixed_rate(arvif, sta, mask,
band);
if (ret)
return ret;
}
/* Re-assoc is run only to update supported rates for given station. It
* doesn't make much sense to reconfigure the peer completely.
*/
if (reassoc)
return 0;
ret = ath11k_setup_peer_smps(ar, arvif, sta->addr,
&sta->ht_cap);
if (ret) {
ath11k_warn(ar->ab, "failed to setup peer SMPS for vdev %d: %d\n",
arvif->vdev_id, ret);
return ret;
}
if (!sta->wme) {
arvif->num_legacy_stations++;
ret = ath11k_recalc_rtscts_prot(arvif);
if (ret)
return ret;
}
if (sta->wme && sta->uapsd_queues) {
ret = ath11k_peer_assoc_qos_ap(ar, arvif, sta);
if (ret) {
ath11k_warn(ar->ab, "failed to set qos params for STA %pM for vdev %i: %d\n",
sta->addr, arvif->vdev_id, ret);
return ret;
}
}
return 0;
}
static int ath11k_station_disassoc(struct ath11k *ar,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
struct ath11k_vif *arvif = (void *)vif->drv_priv;
int ret = 0;
lockdep_assert_held(&ar->conf_mutex);
if (!sta->wme) {
arvif->num_legacy_stations--;
ret = ath11k_recalc_rtscts_prot(arvif);
if (ret)
return ret;
}
ret = ath11k_clear_peer_keys(arvif, sta->addr);
if (ret) {
ath11k_warn(ar->ab, "failed to clear all peer keys for vdev %i: %d\n",
arvif->vdev_id, ret);
return ret;
}
return 0;
}
static void ath11k_sta_rc_update_wk(struct work_struct *wk)
{
struct ath11k *ar;
struct ath11k_vif *arvif;
struct ath11k_sta *arsta;
struct ieee80211_sta *sta;
struct cfg80211_chan_def def;
enum nl80211_band band;
const u8 *ht_mcs_mask;
const u16 *vht_mcs_mask;
u32 changed, bw, nss, smps;
int err, num_vht_rates;
const struct cfg80211_bitrate_mask *mask;
struct peer_assoc_params peer_arg;
arsta = container_of(wk, struct ath11k_sta, update_wk);
sta = container_of((void *)arsta, struct ieee80211_sta, drv_priv);
arvif = arsta->arvif;
ar = arvif->ar;
if (WARN_ON(ath11k_mac_vif_chan(arvif->vif, &def)))
return;
band = def.chan->band;
ht_mcs_mask = arvif->bitrate_mask.control[band].ht_mcs;
vht_mcs_mask = arvif->bitrate_mask.control[band].vht_mcs;
spin_lock_bh(&ar->data_lock);
changed = arsta->changed;
arsta->changed = 0;
bw = arsta->bw;
nss = arsta->nss;
smps = arsta->smps;
spin_unlock_bh(&ar->data_lock);
mutex_lock(&ar->conf_mutex);
nss = max_t(u32, 1, nss);
nss = min(nss, max(ath11k_mac_max_ht_nss(ht_mcs_mask),
ath11k_mac_max_vht_nss(vht_mcs_mask)));
if (changed & IEEE80211_RC_BW_CHANGED) {
err = ath11k_wmi_set_peer_param(ar, sta->addr, arvif->vdev_id,
WMI_PEER_CHWIDTH, bw);
if (err)
ath11k_warn(ar->ab, "failed to update STA %pM peer bw %d: %d\n",
sta->addr, bw, err);
}
if (changed & IEEE80211_RC_NSS_CHANGED) {
ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "mac update sta %pM nss %d\n",
sta->addr, nss);
err = ath11k_wmi_set_peer_param(ar, sta->addr, arvif->vdev_id,
WMI_PEER_NSS, nss);
if (err)
ath11k_warn(ar->ab, "failed to update STA %pM nss %d: %d\n",
sta->addr, nss, err);
}
if (changed & IEEE80211_RC_SMPS_CHANGED) {
ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "mac update sta %pM smps %d\n",
sta->addr, smps);
err = ath11k_wmi_set_peer_param(ar, sta->addr, arvif->vdev_id,
WMI_PEER_MIMO_PS_STATE, smps);
if (err)
ath11k_warn(ar->ab, "failed to update STA %pM smps %d: %d\n",
sta->addr, smps, err);
}
if (changed & IEEE80211_RC_SUPP_RATES_CHANGED) {
mask = &arvif->bitrate_mask;
num_vht_rates = ath11k_mac_bitrate_mask_num_vht_rates(ar, band,
mask);
/* Peer_assoc_prepare will reject vht rates in
* bitrate_mask if its not available in range format and
* sets vht tx_rateset as unsupported. So multiple VHT MCS
* setting(eg. MCS 4,5,6) per peer is not supported here.
* But, Single rate in VHT mask can be set as per-peer
* fixed rate. But even if any HT rates are configured in
* the bitrate mask, device will not switch to those rates
* when per-peer Fixed rate is set.
* TODO: Check RATEMASK_CMDID to support auto rates selection
* across HT/VHT and for multiple VHT MCS support.
*/
if (sta->vht_cap.vht_supported && num_vht_rates == 1) {
ath11k_mac_set_peer_vht_fixed_rate(arvif, sta, mask,
band);
} else {
/* If the peer is non-VHT or no fixed VHT rate
* is provided in the new bitrate mask we set the
* other rates using peer_assoc command.
*/
ath11k_peer_assoc_prepare(ar, arvif->vif, sta,
&peer_arg, true);
err = ath11k_wmi_send_peer_assoc_cmd(ar, &peer_arg);
if (err)
ath11k_warn(ar->ab, "failed to run peer assoc for STA %pM vdev %i: %d\n",
sta->addr, arvif->vdev_id, err);
if (!wait_for_completion_timeout(&ar->peer_assoc_done, 1 * HZ))
ath11k_warn(ar->ab, "failed to get peer assoc conf event for %pM vdev %i\n",
sta->addr, arvif->vdev_id);
}
}
mutex_unlock(&ar->conf_mutex);
}
static int ath11k_mac_inc_num_stations(struct ath11k_vif *arvif,
struct ieee80211_sta *sta)
{
struct ath11k *ar = arvif->ar;
lockdep_assert_held(&ar->conf_mutex);
if (arvif->vdev_type == WMI_VDEV_TYPE_STA && !sta->tdls)
return 0;
if (ar->num_stations >= ar->max_num_stations)
return -ENOBUFS;
ar->num_stations++;
return 0;
}
static void ath11k_mac_dec_num_stations(struct ath11k_vif *arvif,
struct ieee80211_sta *sta)
{
struct ath11k *ar = arvif->ar;
lockdep_assert_held(&ar->conf_mutex);
if (arvif->vdev_type == WMI_VDEV_TYPE_STA && !sta->tdls)
return;
ar->num_stations--;
}
static int ath11k_mac_station_add(struct ath11k *ar,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
struct ath11k_base *ab = ar->ab;
struct ath11k_vif *arvif = ath11k_vif_to_arvif(vif);
struct ath11k_sta *arsta = (struct ath11k_sta *)sta->drv_priv;
struct peer_create_params peer_param;
int ret;
lockdep_assert_held(&ar->conf_mutex);
ret = ath11k_mac_inc_num_stations(arvif, sta);
if (ret) {
ath11k_warn(ab, "refusing to associate station: too many connected already (%d)\n",
ar->max_num_stations);
goto exit;
}
arsta->rx_stats = kzalloc(sizeof(*arsta->rx_stats), GFP_KERNEL);
if (!arsta->rx_stats) {
ret = -ENOMEM;
goto dec_num_station;
}
peer_param.vdev_id = arvif->vdev_id;
peer_param.peer_addr = sta->addr;
peer_param.peer_type = WMI_PEER_TYPE_DEFAULT;
ret = ath11k_peer_create(ar, arvif, sta, &peer_param);
if (ret) {
ath11k_warn(ab, "Failed to add peer: %pM for VDEV: %d\n",
sta->addr, arvif->vdev_id);
goto free_rx_stats;
}
ath11k_dbg(ab, ATH11K_DBG_MAC, "Added peer: %pM for VDEV: %d\n",
sta->addr, arvif->vdev_id);
if (ath11k_debug_is_extd_tx_stats_enabled(ar)) {
arsta->tx_stats = kzalloc(sizeof(*arsta->tx_stats), GFP_KERNEL);
if (!arsta->tx_stats) {
ret = -ENOMEM;
goto free_peer;
}
}
if (ieee80211_vif_is_mesh(vif)) {
ret = ath11k_wmi_set_peer_param(ar, sta->addr,
arvif->vdev_id,
WMI_PEER_USE_4ADDR, 1);
if (ret) {
ath11k_warn(ab, "failed to STA %pM 4addr capability: %d\n",
sta->addr, ret);
goto free_tx_stats;
}
}
ret = ath11k_dp_peer_setup(ar, arvif->vdev_id, sta->addr);
if (ret) {
ath11k_warn(ab, "failed to setup dp for peer %pM on vdev %i (%d)\n",
sta->addr, arvif->vdev_id, ret);
goto free_tx_stats;
}
return 0;
free_tx_stats:
kfree(arsta->tx_stats);
arsta->tx_stats = NULL;
free_peer:
ath11k_peer_delete(ar, arvif->vdev_id, sta->addr);
free_rx_stats:
kfree(arsta->rx_stats);
arsta->rx_stats = NULL;
dec_num_station:
ath11k_mac_dec_num_stations(arvif, sta);
exit:
return ret;
}
static int ath11k_mac_op_sta_state(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
enum ieee80211_sta_state old_state,
enum ieee80211_sta_state new_state)
{
struct ath11k *ar = hw->priv;
struct ath11k_vif *arvif = ath11k_vif_to_arvif(vif);
struct ath11k_sta *arsta = (struct ath11k_sta *)sta->drv_priv;
int ret = 0;
/* cancel must be done outside the mutex to avoid deadlock */
if ((old_state == IEEE80211_STA_NONE &&
new_state == IEEE80211_STA_NOTEXIST))
cancel_work_sync(&arsta->update_wk);
mutex_lock(&ar->conf_mutex);
if (old_state == IEEE80211_STA_NOTEXIST &&
new_state == IEEE80211_STA_NONE) {
memset(arsta, 0, sizeof(*arsta));
arsta->arvif = arvif;
INIT_WORK(&arsta->update_wk, ath11k_sta_rc_update_wk);
ret = ath11k_mac_station_add(ar, vif, sta);
if (ret)
ath11k_warn(ar->ab, "Failed to add station: %pM for VDEV: %d\n",
sta->addr, arvif->vdev_id);
} else if ((old_state == IEEE80211_STA_NONE &&
new_state == IEEE80211_STA_NOTEXIST)) {
ath11k_dp_peer_cleanup(ar, arvif->vdev_id, sta->addr);
ret = ath11k_peer_delete(ar, arvif->vdev_id, sta->addr);
if (ret)
ath11k_warn(ar->ab, "Failed to delete peer: %pM for VDEV: %d\n",
sta->addr, arvif->vdev_id);
else
ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "Removed peer: %pM for VDEV: %d\n",
sta->addr, arvif->vdev_id);
ath11k_mac_dec_num_stations(arvif, sta);
kfree(arsta->tx_stats);
arsta->tx_stats = NULL;
kfree(arsta->rx_stats);
arsta->rx_stats = NULL;
} else if (old_state == IEEE80211_STA_AUTH &&
new_state == IEEE80211_STA_ASSOC &&
(vif->type == NL80211_IFTYPE_AP ||
vif->type == NL80211_IFTYPE_MESH_POINT ||
vif->type == NL80211_IFTYPE_ADHOC)) {
ret = ath11k_station_assoc(ar, vif, sta, false);
if (ret)
ath11k_warn(ar->ab, "Failed to associate station: %pM\n",
sta->addr);
else
ath11k_info(ar->ab,
"Station %pM moved to assoc state\n",
sta->addr);
} else if (old_state == IEEE80211_STA_ASSOC &&
new_state == IEEE80211_STA_AUTH &&
(vif->type == NL80211_IFTYPE_AP ||
vif->type == NL80211_IFTYPE_MESH_POINT ||
vif->type == NL80211_IFTYPE_ADHOC)) {
ret = ath11k_station_disassoc(ar, vif, sta);
if (ret)
ath11k_warn(ar->ab, "Failed to disassociate station: %pM\n",
sta->addr);
else
ath11k_info(ar->ab,
"Station %pM moved to disassociated state\n",
sta->addr);
}
mutex_unlock(&ar->conf_mutex);
return ret;
}
static int ath11k_mac_op_sta_set_txpwr(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
struct ath11k *ar = hw->priv;
struct ath11k_vif *arvif = (void *)vif->drv_priv;
int ret = 0;
s16 txpwr;
if (sta->txpwr.type == NL80211_TX_POWER_AUTOMATIC) {
txpwr = 0;
} else {
txpwr = sta->txpwr.power;
if (!txpwr)
return -EINVAL;
}
if (txpwr > ATH11K_TX_POWER_MAX_VAL || txpwr < ATH11K_TX_POWER_MIN_VAL)
return -EINVAL;
mutex_lock(&ar->conf_mutex);
ret = ath11k_wmi_set_peer_param(ar, sta->addr, arvif->vdev_id,
WMI_PEER_USE_FIXED_PWR, txpwr);
if (ret) {
ath11k_warn(ar->ab, "failed to set tx power for station ret: %d\n",
ret);
goto out;
}
out:
mutex_unlock(&ar->conf_mutex);
return ret;
}
static void ath11k_mac_op_sta_rc_update(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
u32 changed)
{
struct ath11k *ar = hw->priv;
struct ath11k_sta *arsta = (struct ath11k_sta *)sta->drv_priv;
struct ath11k_vif *arvif = (void *)vif->drv_priv;
struct ath11k_peer *peer;
u32 bw, smps;
spin_lock_bh(&ar->ab->base_lock);
peer = ath11k_peer_find(ar->ab, arvif->vdev_id, sta->addr);
if (!peer) {
spin_unlock_bh(&ar->ab->base_lock);
ath11k_warn(ar->ab, "mac sta rc update failed to find peer %pM on vdev %i\n",
sta->addr, arvif->vdev_id);
return;
}
spin_unlock_bh(&ar->ab->base_lock);
ath11k_dbg(ar->ab, ATH11K_DBG_MAC,
"mac sta rc update for %pM changed %08x bw %d nss %d smps %d\n",
sta->addr, changed, sta->bandwidth, sta->rx_nss,
sta->smps_mode);
spin_lock_bh(&ar->data_lock);
if (changed & IEEE80211_RC_BW_CHANGED) {
bw = WMI_PEER_CHWIDTH_20MHZ;
switch (sta->bandwidth) {
case IEEE80211_STA_RX_BW_20:
bw = WMI_PEER_CHWIDTH_20MHZ;
break;
case IEEE80211_STA_RX_BW_40:
bw = WMI_PEER_CHWIDTH_40MHZ;
break;
case IEEE80211_STA_RX_BW_80:
bw = WMI_PEER_CHWIDTH_80MHZ;
break;
case IEEE80211_STA_RX_BW_160:
bw = WMI_PEER_CHWIDTH_160MHZ;
break;
default:
ath11k_warn(ar->ab, "Invalid bandwidth %d in rc update for %pM\n",
sta->bandwidth, sta->addr);
bw = WMI_PEER_CHWIDTH_20MHZ;
break;
}
arsta->bw = bw;
}
if (changed & IEEE80211_RC_NSS_CHANGED)
arsta->nss = sta->rx_nss;
if (changed & IEEE80211_RC_SMPS_CHANGED) {
smps = WMI_PEER_SMPS_PS_NONE;
switch (sta->smps_mode) {
case IEEE80211_SMPS_AUTOMATIC:
case IEEE80211_SMPS_OFF:
smps = WMI_PEER_SMPS_PS_NONE;
break;
case IEEE80211_SMPS_STATIC:
smps = WMI_PEER_SMPS_STATIC;
break;
case IEEE80211_SMPS_DYNAMIC:
smps = WMI_PEER_SMPS_DYNAMIC;
break;
default:
ath11k_warn(ar->ab, "Invalid smps %d in sta rc update for %pM\n",
sta->smps_mode, sta->addr);
smps = WMI_PEER_SMPS_PS_NONE;
break;
}
arsta->smps = smps;
}
arsta->changed |= changed;
spin_unlock_bh(&ar->data_lock);
ieee80211_queue_work(hw, &arsta->update_wk);
}
static int ath11k_conf_tx_uapsd(struct ath11k *ar, struct ieee80211_vif *vif,
u16 ac, bool enable)
{
struct ath11k_vif *arvif = ath11k_vif_to_arvif(vif);
u32 value = 0;
int ret = 0;
if (arvif->vdev_type != WMI_VDEV_TYPE_STA)
return 0;
switch (ac) {
case IEEE80211_AC_VO:
value = WMI_STA_PS_UAPSD_AC3_DELIVERY_EN |
WMI_STA_PS_UAPSD_AC3_TRIGGER_EN;
break;
case IEEE80211_AC_VI:
value = WMI_STA_PS_UAPSD_AC2_DELIVERY_EN |
WMI_STA_PS_UAPSD_AC2_TRIGGER_EN;
break;
case IEEE80211_AC_BE:
value = WMI_STA_PS_UAPSD_AC1_DELIVERY_EN |
WMI_STA_PS_UAPSD_AC1_TRIGGER_EN;
break;
case IEEE80211_AC_BK:
value = WMI_STA_PS_UAPSD_AC0_DELIVERY_EN |
WMI_STA_PS_UAPSD_AC0_TRIGGER_EN;
break;
}
if (enable)
arvif->u.sta.uapsd |= value;
else
arvif->u.sta.uapsd &= ~value;
ret = ath11k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
WMI_STA_PS_PARAM_UAPSD,
arvif->u.sta.uapsd);
if (ret) {
ath11k_warn(ar->ab, "could not set uapsd params %d\n", ret);
goto exit;
}
if (arvif->u.sta.uapsd)
value = WMI_STA_PS_RX_WAKE_POLICY_POLL_UAPSD;
else
value = WMI_STA_PS_RX_WAKE_POLICY_WAKE;
ret = ath11k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
WMI_STA_PS_PARAM_RX_WAKE_POLICY,
value);
if (ret)
ath11k_warn(ar->ab, "could not set rx wake param %d\n", ret);
exit:
return ret;
}
static int ath11k_mac_op_conf_tx(struct ieee80211_hw *hw,
struct ieee80211_vif *vif, u16 ac,
const struct ieee80211_tx_queue_params *params)
{
struct ath11k *ar = hw->priv;
struct ath11k_vif *arvif = (void *)vif->drv_priv;
struct wmi_wmm_params_arg *p = NULL;
int ret;
mutex_lock(&ar->conf_mutex);
switch (ac) {
case IEEE80211_AC_VO:
p = &arvif->wmm_params.ac_vo;
break;
case IEEE80211_AC_VI:
p = &arvif->wmm_params.ac_vi;
break;
case IEEE80211_AC_BE:
p = &arvif->wmm_params.ac_be;
break;
case IEEE80211_AC_BK:
p = &arvif->wmm_params.ac_bk;
break;
}
if (WARN_ON(!p)) {
ret = -EINVAL;
goto exit;
}
p->cwmin = params->cw_min;
p->cwmax = params->cw_max;
p->aifs = params->aifs;
p->txop = params->txop;
ret = ath11k_wmi_send_wmm_update_cmd_tlv(ar, arvif->vdev_id,
&arvif->wmm_params);
if (ret) {
ath11k_warn(ar->ab, "failed to set wmm params: %d\n", ret);
goto exit;
}
ret = ath11k_conf_tx_uapsd(ar, vif, ac, params->uapsd);
if (ret)
ath11k_warn(ar->ab, "failed to set sta uapsd: %d\n", ret);
exit:
mutex_unlock(&ar->conf_mutex);
return ret;
}
static struct ieee80211_sta_ht_cap
ath11k_create_ht_cap(struct ath11k *ar, u32 ar_ht_cap, u32 rate_cap_rx_chainmask)
{
int i;
struct ieee80211_sta_ht_cap ht_cap = {0};
u32 ar_vht_cap = ar->pdev->cap.vht_cap;
if (!(ar_ht_cap & WMI_HT_CAP_ENABLED))
return ht_cap;
ht_cap.ht_supported = 1;
ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_8;
ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
ht_cap.cap |= IEEE80211_HT_CAP_DSSSCCK40;
ht_cap.cap |= WLAN_HT_CAP_SM_PS_STATIC << IEEE80211_HT_CAP_SM_PS_SHIFT;
if (ar_ht_cap & WMI_HT_CAP_HT20_SGI)
ht_cap.cap |= IEEE80211_HT_CAP_SGI_20;
if (ar_ht_cap & WMI_HT_CAP_HT40_SGI)
ht_cap.cap |= IEEE80211_HT_CAP_SGI_40;
if (ar_ht_cap & WMI_HT_CAP_DYNAMIC_SMPS) {
u32 smps;
smps = WLAN_HT_CAP_SM_PS_DYNAMIC;
smps <<= IEEE80211_HT_CAP_SM_PS_SHIFT;
ht_cap.cap |= smps;
}
if (ar_ht_cap & WMI_HT_CAP_TX_STBC)
ht_cap.cap |= IEEE80211_HT_CAP_TX_STBC;
if (ar_ht_cap & WMI_HT_CAP_RX_STBC) {
u32 stbc;
stbc = ar_ht_cap;
stbc &= WMI_HT_CAP_RX_STBC;
stbc >>= WMI_HT_CAP_RX_STBC_MASK_SHIFT;
stbc <<= IEEE80211_HT_CAP_RX_STBC_SHIFT;
stbc &= IEEE80211_HT_CAP_RX_STBC;
ht_cap.cap |= stbc;
}
if (ar_ht_cap & WMI_HT_CAP_RX_LDPC)
ht_cap.cap |= IEEE80211_HT_CAP_LDPC_CODING;
if (ar_ht_cap & WMI_HT_CAP_L_SIG_TXOP_PROT)
ht_cap.cap |= IEEE80211_HT_CAP_LSIG_TXOP_PROT;
if (ar_vht_cap & WMI_VHT_CAP_MAX_MPDU_LEN_MASK)
ht_cap.cap |= IEEE80211_HT_CAP_MAX_AMSDU;
for (i = 0; i < ar->num_rx_chains; i++) {
if (rate_cap_rx_chainmask & BIT(i))
ht_cap.mcs.rx_mask[i] = 0xFF;
}
ht_cap.mcs.tx_params |= IEEE80211_HT_MCS_TX_DEFINED;
return ht_cap;
}
static int ath11k_mac_set_txbf_conf(struct ath11k_vif *arvif)
{
u32 value = 0;
struct ath11k *ar = arvif->ar;
int nsts;
int sound_dim;
u32 vht_cap = ar->pdev->cap.vht_cap;
u32 vdev_param = WMI_VDEV_PARAM_TXBF;
if (vht_cap & (IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE)) {
nsts = vht_cap & IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK;
nsts >>= IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT;
value |= SM(nsts, WMI_TXBF_STS_CAP_OFFSET);
}
if (vht_cap & (IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE)) {
sound_dim = vht_cap &
IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK;
sound_dim >>= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT;
if (sound_dim > (ar->num_tx_chains - 1))
sound_dim = ar->num_tx_chains - 1;
value |= SM(sound_dim, WMI_BF_SOUND_DIM_OFFSET);
}
if (!value)
return 0;
if (vht_cap & IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE) {
value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFER;
if ((vht_cap & IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE) &&
arvif->vdev_type == WMI_VDEV_TYPE_AP)
value |= WMI_VDEV_PARAM_TXBF_MU_TX_BFER;
}
/* TODO: SUBFEE not validated in HK, disable here until validated? */
if (vht_cap & IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE) {
value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFEE;
if ((vht_cap & IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE) &&
arvif->vdev_type == WMI_VDEV_TYPE_STA)
value |= WMI_VDEV_PARAM_TXBF_MU_TX_BFEE;
}
return ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id,
vdev_param, value);
}
static void ath11k_set_vht_txbf_cap(struct ath11k *ar, u32 *vht_cap)
{
bool subfer, subfee;
int sound_dim = 0;
subfer = !!(*vht_cap & (IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE));
subfee = !!(*vht_cap & (IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE));
if (ar->num_tx_chains < 2) {
*vht_cap &= ~(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE);
subfer = false;
}
/* If SU Beaformer is not set, then disable MU Beamformer Capability */
if (!subfer)
*vht_cap &= ~(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE);
/* If SU Beaformee is not set, then disable MU Beamformee Capability */
if (!subfee)
*vht_cap &= ~(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE);
sound_dim = (*vht_cap & IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK);
sound_dim >>= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT;
*vht_cap &= ~IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK;
/* TODO: Need to check invalid STS and Sound_dim values set by FW? */
/* Enable Sounding Dimension Field only if SU BF is enabled */
if (subfer) {
if (sound_dim > (ar->num_tx_chains - 1))
sound_dim = ar->num_tx_chains - 1;
sound_dim <<= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT;
sound_dim &= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK;
*vht_cap |= sound_dim;
}
/* Use the STS advertised by FW unless SU Beamformee is not supported*/
if (!subfee)
*vht_cap &= ~(IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK);
}
static struct ieee80211_sta_vht_cap
ath11k_create_vht_cap(struct ath11k *ar, u32 rate_cap_tx_chainmask,
u32 rate_cap_rx_chainmask)
{
struct ieee80211_sta_vht_cap vht_cap = {0};
u16 txmcs_map, rxmcs_map;
int i;
vht_cap.vht_supported = 1;
vht_cap.cap = ar->pdev->cap.vht_cap;
ath11k_set_vht_txbf_cap(ar, &vht_cap.cap);
/* TODO: Enable back VHT160 mode once association issues are fixed */
/* Disabling VHT160 and VHT80+80 modes */
vht_cap.cap &= ~IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK;
vht_cap.cap &= ~IEEE80211_VHT_CAP_SHORT_GI_160;
rxmcs_map = 0;
txmcs_map = 0;
for (i = 0; i < 8; i++) {
if (i < ar->num_tx_chains && rate_cap_tx_chainmask & BIT(i))
txmcs_map |= IEEE80211_VHT_MCS_SUPPORT_0_9 << (i * 2);
else
txmcs_map |= IEEE80211_VHT_MCS_NOT_SUPPORTED << (i * 2);
if (i < ar->num_rx_chains && rate_cap_rx_chainmask & BIT(i))
rxmcs_map |= IEEE80211_VHT_MCS_SUPPORT_0_9 << (i * 2);
else
rxmcs_map |= IEEE80211_VHT_MCS_NOT_SUPPORTED << (i * 2);
}
if (rate_cap_tx_chainmask <= 1)
vht_cap.cap &= ~IEEE80211_VHT_CAP_TXSTBC;
vht_cap.vht_mcs.rx_mcs_map = cpu_to_le16(rxmcs_map);
vht_cap.vht_mcs.tx_mcs_map = cpu_to_le16(txmcs_map);
return vht_cap;
}
static void ath11k_mac_setup_ht_vht_cap(struct ath11k *ar,
struct ath11k_pdev_cap *cap,
u32 *ht_cap_info)
{
struct ieee80211_supported_band *band;
u32 rate_cap_tx_chainmask;
u32 rate_cap_rx_chainmask;
u32 ht_cap;
rate_cap_tx_chainmask = ar->cfg_tx_chainmask >> cap->tx_chain_mask_shift;
rate_cap_rx_chainmask = ar->cfg_rx_chainmask >> cap->rx_chain_mask_shift;
if (cap->supported_bands & WMI_HOST_WLAN_2G_CAP) {
band = &ar->mac.sbands[NL80211_BAND_2GHZ];
ht_cap = cap->band[NL80211_BAND_2GHZ].ht_cap_info;
if (ht_cap_info)
*ht_cap_info = ht_cap;
band->ht_cap = ath11k_create_ht_cap(ar, ht_cap,
rate_cap_rx_chainmask);
}
if (cap->supported_bands & WMI_HOST_WLAN_5G_CAP) {
band = &ar->mac.sbands[NL80211_BAND_5GHZ];
ht_cap = cap->band[NL80211_BAND_5GHZ].ht_cap_info;
if (ht_cap_info)
*ht_cap_info = ht_cap;
band->ht_cap = ath11k_create_ht_cap(ar, ht_cap,
rate_cap_rx_chainmask);
band->vht_cap = ath11k_create_vht_cap(ar, rate_cap_tx_chainmask,
rate_cap_rx_chainmask);
}
}
static int ath11k_check_chain_mask(struct ath11k *ar, u32 ant, bool is_tx_ant)
{
/* TODO: Check the request chainmask against the supported
* chainmask table which is advertised in extented_service_ready event
*/
return 0;
}
static void ath11k_gen_ppe_thresh(struct ath11k_ppe_threshold *fw_ppet,
u8 *he_ppet)
{
int nss, ru;
u8 bit = 7;
he_ppet[0] = fw_ppet->numss_m1 & IEEE80211_PPE_THRES_NSS_MASK;
he_ppet[0] |= (fw_ppet->ru_bit_mask <<
IEEE80211_PPE_THRES_RU_INDEX_BITMASK_POS) &
IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK;
for (nss = 0; nss <= fw_ppet->numss_m1; nss++) {
for (ru = 0; ru < 4; ru++) {
u8 val;
int i;
if ((fw_ppet->ru_bit_mask & BIT(ru)) == 0)
continue;
val = (fw_ppet->ppet16_ppet8_ru3_ru0[nss] >> (ru * 6)) &
0x3f;
val = ((val >> 3) & 0x7) | ((val & 0x7) << 3);
for (i = 5; i >= 0; i--) {
he_ppet[bit / 8] |=
((val >> i) & 0x1) << ((bit % 8));
bit++;
}
}
}
}
static int ath11k_mac_copy_he_cap(struct ath11k *ar,
struct ath11k_pdev_cap *cap,
struct ieee80211_sband_iftype_data *data,
int band)
{
int i, idx = 0;
for (i = 0; i < NUM_NL80211_IFTYPES; i++) {
struct ieee80211_sta_he_cap *he_cap = &data[idx].he_cap;
struct ath11k_band_cap *band_cap = &cap->band[band];
struct ieee80211_he_cap_elem *he_cap_elem =
&he_cap->he_cap_elem;
switch (i) {
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_AP:
break;
default:
continue;
}
data[idx].types_mask = BIT(i);
he_cap->has_he = true;
memcpy(he_cap_elem->mac_cap_info, band_cap->he_cap_info,
sizeof(he_cap_elem->mac_cap_info));
memcpy(he_cap_elem->phy_cap_info, band_cap->he_cap_phy_info,
sizeof(he_cap_elem->phy_cap_info));
he_cap_elem->mac_cap_info[1] |=
IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_MASK;
he_cap_elem->phy_cap_info[4] &=
~IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_MASK;
he_cap_elem->phy_cap_info[4] &=
~IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_MASK;
he_cap_elem->phy_cap_info[4] |= (ar->num_tx_chains - 1) << 2;
he_cap_elem->phy_cap_info[5] &=
~IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_MASK;
he_cap_elem->phy_cap_info[5] &=
~IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_MASK;
he_cap_elem->phy_cap_info[5] |= ar->num_tx_chains - 1;
switch (i) {
case NL80211_IFTYPE_AP:
he_cap_elem->phy_cap_info[9] |=
IEEE80211_HE_PHY_CAP9_RX_1024_QAM_LESS_THAN_242_TONE_RU;
break;
case NL80211_IFTYPE_STATION:
he_cap_elem->mac_cap_info[0] &=
~IEEE80211_HE_MAC_CAP0_TWT_RES;
he_cap_elem->mac_cap_info[0] |=
IEEE80211_HE_MAC_CAP0_TWT_REQ;
he_cap_elem->phy_cap_info[9] |=
IEEE80211_HE_PHY_CAP9_TX_1024_QAM_LESS_THAN_242_TONE_RU;
break;
}
he_cap->he_mcs_nss_supp.rx_mcs_80 =
cpu_to_le16(band_cap->he_mcs & 0xffff);
he_cap->he_mcs_nss_supp.tx_mcs_80 =
cpu_to_le16(band_cap->he_mcs & 0xffff);
he_cap->he_mcs_nss_supp.rx_mcs_160 =
cpu_to_le16((band_cap->he_mcs >> 16) & 0xffff);
he_cap->he_mcs_nss_supp.tx_mcs_160 =
cpu_to_le16((band_cap->he_mcs >> 16) & 0xffff);
he_cap->he_mcs_nss_supp.rx_mcs_80p80 =
cpu_to_le16((band_cap->he_mcs >> 16) & 0xffff);
he_cap->he_mcs_nss_supp.tx_mcs_80p80 =
cpu_to_le16((band_cap->he_mcs >> 16) & 0xffff);
memset(he_cap->ppe_thres, 0, sizeof(he_cap->ppe_thres));
if (he_cap_elem->phy_cap_info[6] &
IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT)
ath11k_gen_ppe_thresh(&band_cap->he_ppet,
he_cap->ppe_thres);
idx++;
}
return idx;
}
static void ath11k_mac_setup_he_cap(struct ath11k *ar,
struct ath11k_pdev_cap *cap)
{
struct ieee80211_supported_band *band = NULL;
int count = 0;
if (cap->supported_bands & WMI_HOST_WLAN_2G_CAP) {
count = ath11k_mac_copy_he_cap(ar, cap,
ar->mac.iftype[NL80211_BAND_2GHZ],
NL80211_BAND_2GHZ);
band = &ar->mac.sbands[NL80211_BAND_2GHZ];
band->iftype_data = ar->mac.iftype[NL80211_BAND_2GHZ];
}
if (cap->supported_bands & WMI_HOST_WLAN_5G_CAP) {
count = ath11k_mac_copy_he_cap(ar, cap,
ar->mac.iftype[NL80211_BAND_5GHZ],
NL80211_BAND_5GHZ);
band = &ar->mac.sbands[NL80211_BAND_5GHZ];
band->iftype_data = ar->mac.iftype[NL80211_BAND_5GHZ];
}
band->n_iftype_data = count;
}
static int __ath11k_set_antenna(struct ath11k *ar, u32 tx_ant, u32 rx_ant)
{
int ret;
lockdep_assert_held(&ar->conf_mutex);
if (ath11k_check_chain_mask(ar, tx_ant, true))
return -EINVAL;
if (ath11k_check_chain_mask(ar, rx_ant, false))
return -EINVAL;
ar->cfg_tx_chainmask = tx_ant;
ar->cfg_rx_chainmask = rx_ant;
if (ar->state != ATH11K_STATE_ON &&
ar->state != ATH11K_STATE_RESTARTED)
return 0;
ret = ath11k_wmi_pdev_set_param(ar, WMI_PDEV_PARAM_TX_CHAIN_MASK,
tx_ant, ar->pdev->pdev_id);
if (ret) {
ath11k_warn(ar->ab, "failed to set tx-chainmask: %d, req 0x%x\n",
ret, tx_ant);
return ret;
}
ar->num_tx_chains = get_num_chains(tx_ant);
ret = ath11k_wmi_pdev_set_param(ar, WMI_PDEV_PARAM_RX_CHAIN_MASK,
rx_ant, ar->pdev->pdev_id);
if (ret) {
ath11k_warn(ar->ab, "failed to set rx-chainmask: %d, req 0x%x\n",
ret, rx_ant);
return ret;
}
ar->num_rx_chains = get_num_chains(rx_ant);
/* Reload HT/VHT/HE capability */
ath11k_mac_setup_ht_vht_cap(ar, &ar->pdev->cap, NULL);
ath11k_mac_setup_he_cap(ar, &ar->pdev->cap);
return 0;
}
int ath11k_mac_tx_mgmt_pending_free(int buf_id, void *skb, void *ctx)
{
struct ath11k *ar = ctx;
struct ath11k_base *ab = ar->ab;
struct sk_buff *msdu = skb;
struct ieee80211_tx_info *info;
spin_lock_bh(&ar->txmgmt_idr_lock);
idr_remove(&ar->txmgmt_idr, buf_id);
spin_unlock_bh(&ar->txmgmt_idr_lock);
dma_unmap_single(ab->dev, ATH11K_SKB_CB(msdu)->paddr, msdu->len,
DMA_TO_DEVICE);
info = IEEE80211_SKB_CB(msdu);
memset(&info->status, 0, sizeof(info->status));
ieee80211_free_txskb(ar->hw, msdu);
return 0;
}
static int ath11k_mac_vif_txmgmt_idr_remove(int buf_id, void *skb, void *ctx)
{
struct ieee80211_vif *vif = ctx;
struct ath11k_skb_cb *skb_cb = ATH11K_SKB_CB((struct sk_buff *)skb);
struct sk_buff *msdu = skb;
struct ath11k *ar = skb_cb->ar;
struct ath11k_base *ab = ar->ab;
if (skb_cb->vif == vif) {
spin_lock_bh(&ar->txmgmt_idr_lock);
idr_remove(&ar->txmgmt_idr, buf_id);
spin_unlock_bh(&ar->txmgmt_idr_lock);
dma_unmap_single(ab->dev, skb_cb->paddr, msdu->len,
DMA_TO_DEVICE);
}
return 0;
}
static int ath11k_mac_mgmt_tx_wmi(struct ath11k *ar, struct ath11k_vif *arvif,
struct sk_buff *skb)
{
struct ath11k_base *ab = ar->ab;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
dma_addr_t paddr;
int buf_id;
int ret;
spin_lock_bh(&ar->txmgmt_idr_lock);
buf_id = idr_alloc(&ar->txmgmt_idr, skb, 0,
ATH11K_TX_MGMT_NUM_PENDING_MAX, GFP_ATOMIC);
spin_unlock_bh(&ar->txmgmt_idr_lock);
if (buf_id < 0)
return -ENOSPC;
if ((ieee80211_is_action(hdr->frame_control) ||
ieee80211_is_deauth(hdr->frame_control) ||
ieee80211_is_disassoc(hdr->frame_control)) &&
ieee80211_has_protected(hdr->frame_control)) {
skb_put(skb, IEEE80211_CCMP_MIC_LEN);
}
paddr = dma_map_single(ab->dev, skb->data, skb->len, DMA_TO_DEVICE);
if (dma_mapping_error(ab->dev, paddr)) {
ath11k_warn(ab, "failed to DMA map mgmt Tx buffer\n");
ret = -EIO;
goto err_free_idr;
}
ATH11K_SKB_CB(skb)->paddr = paddr;
ret = ath11k_wmi_mgmt_send(ar, arvif->vdev_id, buf_id, skb);
if (ret) {
ath11k_warn(ar->ab, "failed to send mgmt frame: %d\n", ret);
goto err_unmap_buf;
}
return 0;
err_unmap_buf:
dma_unmap_single(ab->dev, ATH11K_SKB_CB(skb)->paddr,
skb->len, DMA_TO_DEVICE);
err_free_idr:
spin_lock_bh(&ar->txmgmt_idr_lock);
idr_remove(&ar->txmgmt_idr, buf_id);
spin_unlock_bh(&ar->txmgmt_idr_lock);
return ret;
}
static void ath11k_mgmt_over_wmi_tx_purge(struct ath11k *ar)
{
struct sk_buff *skb;
while ((skb = skb_dequeue(&ar->wmi_mgmt_tx_queue)) != NULL)
ieee80211_free_txskb(ar->hw, skb);
}
static void ath11k_mgmt_over_wmi_tx_work(struct work_struct *work)
{
struct ath11k *ar = container_of(work, struct ath11k, wmi_mgmt_tx_work);
struct ieee80211_tx_info *info;
struct ath11k_vif *arvif;
struct sk_buff *skb;
int ret;
while ((skb = skb_dequeue(&ar->wmi_mgmt_tx_queue)) != NULL) {
info = IEEE80211_SKB_CB(skb);
arvif = ath11k_vif_to_arvif(info->control.vif);
ret = ath11k_mac_mgmt_tx_wmi(ar, arvif, skb);
if (ret) {
ath11k_warn(ar->ab, "failed to transmit management frame %d\n",
ret);
ieee80211_free_txskb(ar->hw, skb);
} else {
atomic_inc(&ar->num_pending_mgmt_tx);
}
}
}
static int ath11k_mac_mgmt_tx(struct ath11k *ar, struct sk_buff *skb,
bool is_prb_rsp)
{
struct sk_buff_head *q = &ar->wmi_mgmt_tx_queue;
if (test_bit(ATH11K_FLAG_CRASH_FLUSH, &ar->ab->dev_flags))
return -ESHUTDOWN;
/* Drop probe response packets when the pending management tx
* count has reached a certain threshold, so as to prioritize
* other mgmt packets like auth and assoc to be sent on time
* for establishing successful connections.
*/
if (is_prb_rsp &&
atomic_read(&ar->num_pending_mgmt_tx) > ATH11K_PRB_RSP_DROP_THRESHOLD) {
ath11k_warn(ar->ab,
"dropping probe response as pending queue is almost full\n");
return -ENOSPC;
}
if (skb_queue_len(q) == ATH11K_TX_MGMT_NUM_PENDING_MAX) {
ath11k_warn(ar->ab, "mgmt tx queue is full\n");
return -ENOSPC;
}
skb_queue_tail(q, skb);
ieee80211_queue_work(ar->hw, &ar->wmi_mgmt_tx_work);
return 0;
}
static void ath11k_mac_op_tx(struct ieee80211_hw *hw,
struct ieee80211_tx_control *control,
struct sk_buff *skb)
{
struct ath11k *ar = hw->priv;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct ieee80211_vif *vif = info->control.vif;
struct ath11k_vif *arvif = ath11k_vif_to_arvif(vif);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
bool is_prb_rsp;
int ret;
if (ieee80211_is_mgmt(hdr->frame_control)) {
is_prb_rsp = ieee80211_is_probe_resp(hdr->frame_control);
ret = ath11k_mac_mgmt_tx(ar, skb, is_prb_rsp);
if (ret) {
ath11k_warn(ar->ab, "failed to queue management frame %d\n",
ret);
ieee80211_free_txskb(ar->hw, skb);
}
return;
}
ret = ath11k_dp_tx(ar, arvif, skb);
if (ret) {
ath11k_warn(ar->ab, "failed to transmit frame %d\n", ret);
ieee80211_free_txskb(ar->hw, skb);
}
}
void ath11k_mac_drain_tx(struct ath11k *ar)
{
/* make sure rcu-protected mac80211 tx path itself is drained */
synchronize_net();
cancel_work_sync(&ar->wmi_mgmt_tx_work);
ath11k_mgmt_over_wmi_tx_purge(ar);
}
static int ath11k_mac_config_mon_status_default(struct ath11k *ar, bool enable)
{
struct htt_rx_ring_tlv_filter tlv_filter = {0};
u32 ring_id;
if (enable)
tlv_filter = ath11k_mac_mon_status_filter_default;
ring_id = ar->dp.rx_mon_status_refill_ring.refill_buf_ring.ring_id;
return ath11k_dp_tx_htt_rx_filter_setup(ar->ab, ring_id, ar->dp.mac_id,
HAL_RXDMA_MONITOR_STATUS,
DP_RX_BUFFER_SIZE, &tlv_filter);
}
static int ath11k_mac_op_start(struct ieee80211_hw *hw)
{
struct ath11k *ar = hw->priv;
struct ath11k_base *ab = ar->ab;
struct ath11k_pdev *pdev = ar->pdev;
int ret;
ath11k_mac_drain_tx(ar);
mutex_lock(&ar->conf_mutex);
switch (ar->state) {
case ATH11K_STATE_OFF:
ar->state = ATH11K_STATE_ON;
break;
case ATH11K_STATE_RESTARTING:
ar->state = ATH11K_STATE_RESTARTED;
break;
case ATH11K_STATE_RESTARTED:
case ATH11K_STATE_WEDGED:
case ATH11K_STATE_ON:
WARN_ON(1);
ret = -EINVAL;
goto err;
}
ret = ath11k_wmi_pdev_set_param(ar, WMI_PDEV_PARAM_PMF_QOS,
1, pdev->pdev_id);
if (ret) {
ath11k_err(ar->ab, "failed to enable PMF QOS: (%d\n", ret);
goto err;
}
ret = ath11k_wmi_pdev_set_param(ar, WMI_PDEV_PARAM_DYNAMIC_BW, 1,
pdev->pdev_id);
if (ret) {
ath11k_err(ar->ab, "failed to enable dynamic bw: %d\n", ret);
goto err;
}
ret = ath11k_wmi_pdev_set_param(ar, WMI_PDEV_PARAM_ARP_AC_OVERRIDE,
0, pdev->pdev_id);
if (ret) {
ath11k_err(ab, "failed to set ac override for ARP: %d\n",
ret);
goto err;
}
ret = ath11k_wmi_send_dfs_phyerr_offload_enable_cmd(ar, pdev->pdev_id);
if (ret) {
ath11k_err(ab, "failed to offload radar detection: %d\n",
ret);
goto err;
}
ret = ath11k_dp_tx_htt_h2t_ppdu_stats_req(ar,
HTT_PPDU_STATS_TAG_DEFAULT);
if (ret) {
ath11k_err(ab, "failed to req ppdu stats: %d\n", ret);
goto err;
}
ret = ath11k_wmi_pdev_set_param(ar, WMI_PDEV_PARAM_MESH_MCAST_ENABLE,
1, pdev->pdev_id);
if (ret) {
ath11k_err(ar->ab, "failed to enable MESH MCAST ENABLE: (%d\n", ret);
goto err;
}
__ath11k_set_antenna(ar, ar->cfg_tx_chainmask, ar->cfg_rx_chainmask);
/* TODO: Do we need to enable ANI? */
ath11k_reg_update_chan_list(ar);
ar->num_started_vdevs = 0;
ar->num_created_vdevs = 0;
ar->num_peers = 0;
/* Configure monitor status ring with default rx_filter to get rx status
* such as rssi, rx_duration.
*/
ret = ath11k_mac_config_mon_status_default(ar, true);
if (ret) {
ath11k_err(ab, "failed to configure monitor status ring with default rx_filter: (%d)\n",
ret);
goto err;
}
mutex_unlock(&ar->conf_mutex);
rcu_assign_pointer(ab->pdevs_active[ar->pdev_idx],
&ab->pdevs[ar->pdev_idx]);
return 0;
err:
ar->state = ATH11K_STATE_OFF;
mutex_unlock(&ar->conf_mutex);
return ret;
}
static void ath11k_mac_op_stop(struct ieee80211_hw *hw)
{
struct ath11k *ar = hw->priv;
struct htt_ppdu_stats_info *ppdu_stats, *tmp;
int ret;
ath11k_mac_drain_tx(ar);
mutex_lock(&ar->conf_mutex);
ret = ath11k_mac_config_mon_status_default(ar, false);
if (ret)
ath11k_err(ar->ab, "failed to clear rx_filter for monitor status ring: (%d)\n",
ret);
clear_bit(ATH11K_CAC_RUNNING, &ar->dev_flags);
ar->state = ATH11K_STATE_OFF;
mutex_unlock(&ar->conf_mutex);
cancel_delayed_work_sync(&ar->scan.timeout);
cancel_work_sync(&ar->regd_update_work);
spin_lock_bh(&ar->data_lock);
list_for_each_entry_safe(ppdu_stats, tmp, &ar->ppdu_stats_info, list) {
list_del(&ppdu_stats->list);
kfree(ppdu_stats);
}
spin_unlock_bh(&ar->data_lock);
rcu_assign_pointer(ar->ab->pdevs_active[ar->pdev_idx], NULL);
synchronize_rcu();
atomic_set(&ar->num_pending_mgmt_tx, 0);
}
static void
ath11k_mac_setup_vdev_create_params(struct ath11k_vif *arvif,
struct vdev_create_params *params)
{
struct ath11k *ar = arvif->ar;
struct ath11k_pdev *pdev = ar->pdev;
params->if_id = arvif->vdev_id;
params->type = arvif->vdev_type;
params->subtype = arvif->vdev_subtype;
params->pdev_id = pdev->pdev_id;
if (pdev->cap.supported_bands & WMI_HOST_WLAN_2G_CAP) {
params->chains[NL80211_BAND_2GHZ].tx = ar->num_tx_chains;
params->chains[NL80211_BAND_2GHZ].rx = ar->num_rx_chains;
}
if (pdev->cap.supported_bands & WMI_HOST_WLAN_5G_CAP) {
params->chains[NL80211_BAND_5GHZ].tx = ar->num_tx_chains;
params->chains[NL80211_BAND_5GHZ].rx = ar->num_rx_chains;
}
}
static u32
ath11k_mac_prepare_he_mode(struct ath11k_pdev *pdev, u32 viftype)
{
struct ath11k_pdev_cap *pdev_cap = &pdev->cap;
struct ath11k_band_cap *cap_band = NULL;
u32 *hecap_phy_ptr = NULL;
u32 hemode = 0;
if (pdev->cap.supported_bands & WMI_HOST_WLAN_2G_CAP)
cap_band = &pdev_cap->band[NL80211_BAND_2GHZ];
else
cap_band = &pdev_cap->band[NL80211_BAND_5GHZ];
hecap_phy_ptr = &cap_band->he_cap_phy_info[0];
hemode = FIELD_PREP(HE_MODE_SU_TX_BFEE, HE_SU_BFEE_ENABLE) |
FIELD_PREP(HE_MODE_SU_TX_BFER, HECAP_PHY_SUBFMR_GET(hecap_phy_ptr)) |
FIELD_PREP(HE_MODE_UL_MUMIMO, HECAP_PHY_ULMUMIMO_GET(hecap_phy_ptr));
/* TODO WDS and other modes */
if (viftype == NL80211_IFTYPE_AP) {
hemode |= FIELD_PREP(HE_MODE_MU_TX_BFER,
HECAP_PHY_MUBFMR_GET(hecap_phy_ptr)) |
FIELD_PREP(HE_MODE_DL_OFDMA, HE_DL_MUOFDMA_ENABLE) |
FIELD_PREP(HE_MODE_UL_OFDMA, HE_UL_MUOFDMA_ENABLE);
} else {
hemode |= FIELD_PREP(HE_MODE_MU_TX_BFEE, HE_MU_BFEE_ENABLE);
}
return hemode;
}
static int ath11k_set_he_mu_sounding_mode(struct ath11k *ar,
struct ath11k_vif *arvif)
{
u32 param_id, param_value;
struct ath11k_base *ab = ar->ab;
int ret = 0;
param_id = WMI_VDEV_PARAM_SET_HEMU_MODE;
param_value = ath11k_mac_prepare_he_mode(ar->pdev, arvif->vif->type);
ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id,
param_id, param_value);
if (ret) {
ath11k_warn(ab, "failed to set vdev %d HE MU mode: %d param_value %x\n",
arvif->vdev_id, ret, param_value);
return ret;
}
param_id = WMI_VDEV_PARAM_SET_HE_SOUNDING_MODE;
param_value =
FIELD_PREP(HE_VHT_SOUNDING_MODE, HE_VHT_SOUNDING_MODE_ENABLE) |
FIELD_PREP(HE_TRIG_NONTRIG_SOUNDING_MODE,
HE_TRIG_NONTRIG_SOUNDING_MODE_ENABLE);
ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id,
param_id, param_value);
if (ret) {
ath11k_warn(ab, "failed to set vdev %d HE MU mode: %d\n",
arvif->vdev_id, ret);
return ret;
}
return ret;
}
static int ath11k_mac_op_add_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct ath11k *ar = hw->priv;
struct ath11k_base *ab = ar->ab;
struct ath11k_vif *arvif = ath11k_vif_to_arvif(vif);
struct vdev_create_params vdev_param = {0};
struct peer_create_params peer_param;
u32 param_id, param_value;
u16 nss;
int i;
int ret;
int bit;
vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
mutex_lock(&ar->conf_mutex);
if (vif->type == NL80211_IFTYPE_AP &&
ar->num_peers > (ar->max_num_peers - 1)) {
ath11k_warn(ab, "failed to create vdev due to insufficient peer entry resource in firmware\n");
ret = -ENOBUFS;
goto err;
}
if (ar->num_created_vdevs > (TARGET_NUM_VDEVS - 1)) {
ath11k_warn(ab, "failed to create vdev, reached max vdev limit %d\n",
TARGET_NUM_VDEVS);
ret = -EBUSY;
goto err;
}
memset(arvif, 0, sizeof(*arvif));
arvif->ar = ar;
arvif->vif = vif;
INIT_LIST_HEAD(&arvif->list);
/* Should we initialize any worker to handle connection loss indication
* from firmware in sta mode?
*/
for (i = 0; i < ARRAY_SIZE(arvif->bitrate_mask.control); i++) {
arvif->bitrate_mask.control[i].legacy = 0xffffffff;
memset(arvif->bitrate_mask.control[i].ht_mcs, 0xff,
sizeof(arvif->bitrate_mask.control[i].ht_mcs));
memset(arvif->bitrate_mask.control[i].vht_mcs, 0xff,
sizeof(arvif->bitrate_mask.control[i].vht_mcs));
}
bit = __ffs64(ab->free_vdev_map);
arvif->vdev_id = bit;
arvif->vdev_subtype = WMI_VDEV_SUBTYPE_NONE;
switch (vif->type) {
case NL80211_IFTYPE_UNSPECIFIED:
case NL80211_IFTYPE_STATION:
arvif->vdev_type = WMI_VDEV_TYPE_STA;
break;
case NL80211_IFTYPE_MESH_POINT:
arvif->vdev_subtype = WMI_VDEV_SUBTYPE_MESH_11S;
/* fall through */
case NL80211_IFTYPE_AP:
arvif->vdev_type = WMI_VDEV_TYPE_AP;
break;
case NL80211_IFTYPE_MONITOR:
arvif->vdev_type = WMI_VDEV_TYPE_MONITOR;
break;
default:
WARN_ON(1);
break;
}
ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "mac add interface id %d type %d subtype %d map %llx\n",
arvif->vdev_id, arvif->vdev_type, arvif->vdev_subtype,
ab->free_vdev_map);
vif->cab_queue = arvif->vdev_id % (ATH11K_HW_MAX_QUEUES - 1);
for (i = 0; i < ARRAY_SIZE(vif->hw_queue); i++)
vif->hw_queue[i] = i % (ATH11K_HW_MAX_QUEUES - 1);
ath11k_mac_setup_vdev_create_params(arvif, &vdev_param);
ret = ath11k_wmi_vdev_create(ar, vif->addr, &vdev_param);
if (ret) {
ath11k_warn(ab, "failed to create WMI vdev %d: %d\n",
arvif->vdev_id, ret);
goto err;
}
ar->num_created_vdevs++;
ab->free_vdev_map &= ~(1LL << arvif->vdev_id);
spin_lock_bh(&ar->data_lock);
list_add(&arvif->list, &ar->arvifs);
spin_unlock_bh(&ar->data_lock);
param_id = WMI_VDEV_PARAM_TX_ENCAP_TYPE;
param_value = ATH11K_HW_TXRX_NATIVE_WIFI;
ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id,
param_id, param_value);
if (ret) {
ath11k_warn(ab, "failed to set vdev %d tx encap mode: %d\n",
arvif->vdev_id, ret);
goto err_vdev_del;
}
nss = get_num_chains(ar->cfg_tx_chainmask) ? : 1;
ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id,
WMI_VDEV_PARAM_NSS, nss);
if (ret) {
ath11k_warn(ab, "failed to set vdev %d chainmask 0x%x, nss %d :%d\n",
arvif->vdev_id, ar->cfg_tx_chainmask, nss, ret);
goto err_vdev_del;
}
switch (arvif->vdev_type) {
case WMI_VDEV_TYPE_AP:
peer_param.vdev_id = arvif->vdev_id;
peer_param.peer_addr = vif->addr;
peer_param.peer_type = WMI_PEER_TYPE_DEFAULT;
ret = ath11k_peer_create(ar, arvif, NULL, &peer_param);
if (ret) {
ath11k_warn(ab, "failed to vdev %d create peer for AP: %d\n",
arvif->vdev_id, ret);
goto err_vdev_del;
}
ret = ath11k_mac_set_kickout(arvif);
if (ret) {
ath11k_warn(ar->ab, "failed to set vdev %i kickout parameters: %d\n",
arvif->vdev_id, ret);
goto err_peer_del;
}
break;
case WMI_VDEV_TYPE_STA:
param_id = WMI_STA_PS_PARAM_RX_WAKE_POLICY;
param_value = WMI_STA_PS_RX_WAKE_POLICY_WAKE;
ret = ath11k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
param_id, param_value);
if (ret) {
ath11k_warn(ar->ab, "failed to set vdev %d RX wake policy: %d\n",
arvif->vdev_id, ret);
goto err_peer_del;
}
param_id = WMI_STA_PS_PARAM_TX_WAKE_THRESHOLD;
param_value = WMI_STA_PS_TX_WAKE_THRESHOLD_ALWAYS;
ret = ath11k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
param_id, param_value);
if (ret) {
ath11k_warn(ar->ab, "failed to set vdev %d TX wake threshold: %d\n",
arvif->vdev_id, ret);
goto err_peer_del;
}
param_id = WMI_STA_PS_PARAM_PSPOLL_COUNT;
param_value = WMI_STA_PS_PSPOLL_COUNT_NO_MAX;
ret = ath11k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
param_id, param_value);
if (ret) {
ath11k_warn(ar->ab, "failed to set vdev %d pspoll count: %d\n",
arvif->vdev_id, ret);
goto err_peer_del;
}
break;
default:
break;
}
arvif->txpower = vif->bss_conf.txpower;
ret = ath11k_mac_txpower_recalc(ar);
if (ret)
goto err_peer_del;
param_id = WMI_VDEV_PARAM_RTS_THRESHOLD;
param_value = ar->hw->wiphy->rts_threshold;
ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id,
param_id, param_value);
if (ret) {
ath11k_warn(ar->ab, "failed to set rts threshold for vdev %d: %d\n",
arvif->vdev_id, ret);
}
ret = ath11k_mac_set_txbf_conf(arvif);
if (ret) {
ath11k_warn(ar->ab, "failed to set txbf conf for vdev %d: %d\n",
arvif->vdev_id, ret);
}
ath11k_dp_vdev_tx_attach(ar, arvif);
mutex_unlock(&ar->conf_mutex);
return 0;
err_peer_del:
if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
ar->num_peers--;
ath11k_wmi_send_peer_delete_cmd(ar, vif->addr, arvif->vdev_id);
}
err_vdev_del:
ath11k_wmi_vdev_delete(ar, arvif->vdev_id);
ar->num_created_vdevs--;
ab->free_vdev_map |= 1LL << arvif->vdev_id;
spin_lock_bh(&ar->data_lock);
list_del(&arvif->list);
spin_unlock_bh(&ar->data_lock);
err:
mutex_unlock(&ar->conf_mutex);
return ret;
}
static int ath11k_mac_vif_unref(int buf_id, void *skb, void *ctx)
{
struct ieee80211_vif *vif = (struct ieee80211_vif *)ctx;
struct ath11k_skb_cb *skb_cb = ATH11K_SKB_CB((struct sk_buff *)skb);
if (skb_cb->vif == vif)
skb_cb->vif = NULL;
return 0;
}
static void ath11k_mac_op_remove_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct ath11k *ar = hw->priv;
struct ath11k_vif *arvif = ath11k_vif_to_arvif(vif);
struct ath11k_base *ab = ar->ab;
int ret;
int i;
mutex_lock(&ar->conf_mutex);
ath11k_dbg(ab, ATH11K_DBG_MAC, "mac remove interface (vdev %d)\n",
arvif->vdev_id);
ab->free_vdev_map |= 1LL << (arvif->vdev_id);
spin_lock_bh(&ar->data_lock);
list_del(&arvif->list);
spin_unlock_bh(&ar->data_lock);
if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
ret = ath11k_peer_delete(ar, arvif->vdev_id, vif->addr);
if (ret)
ath11k_warn(ab, "failed to submit AP self-peer removal on vdev %d: %d\n",
arvif->vdev_id, ret);
}
ret = ath11k_wmi_vdev_delete(ar, arvif->vdev_id);
if (ret)
ath11k_warn(ab, "failed to delete WMI vdev %d: %d\n",
arvif->vdev_id, ret);
ar->num_created_vdevs--;
ath11k_peer_cleanup(ar, arvif->vdev_id);
idr_for_each(&ar->txmgmt_idr,
ath11k_mac_vif_txmgmt_idr_remove, vif);
for (i = 0; i < DP_TCL_NUM_RING_MAX; i++) {
spin_lock_bh(&ab->dp.tx_ring[i].tx_idr_lock);
idr_for_each(&ab->dp.tx_ring[i].txbuf_idr,
ath11k_mac_vif_unref, vif);
spin_unlock_bh(&ab->dp.tx_ring[i].tx_idr_lock);
}
/* Recalc txpower for remaining vdev */
ath11k_mac_txpower_recalc(ar);
clear_bit(ATH11K_FLAG_MONITOR_ENABLED, &ar->monitor_flags);
/* TODO: recal traffic pause state based on the available vdevs */
mutex_unlock(&ar->conf_mutex);
}
/* FIXME: Has to be verified. */
#define SUPPORTED_FILTERS \
(FIF_ALLMULTI | \
FIF_CONTROL | \
FIF_PSPOLL | \
FIF_OTHER_BSS | \
FIF_BCN_PRBRESP_PROMISC | \
FIF_PROBE_REQ | \
FIF_FCSFAIL)
static void ath11k_mac_op_configure_filter(struct ieee80211_hw *hw,
unsigned int changed_flags,
unsigned int *total_flags,
u64 multicast)
{
struct ath11k *ar = hw->priv;
bool reset_flag = false;
int ret = 0;
mutex_lock(&ar->conf_mutex);
changed_flags &= SUPPORTED_FILTERS;
*total_flags &= SUPPORTED_FILTERS;
ar->filter_flags = *total_flags;
/* For monitor mode */
reset_flag = !(ar->filter_flags & FIF_BCN_PRBRESP_PROMISC);
ret = ath11k_dp_tx_htt_monitor_mode_ring_config(ar, reset_flag);
if (!ret) {
if (!reset_flag)
set_bit(ATH11K_FLAG_MONITOR_ENABLED, &ar->monitor_flags);
else
clear_bit(ATH11K_FLAG_MONITOR_ENABLED, &ar->monitor_flags);
} else {
ath11k_warn(ar->ab,
"fail to set monitor filter: %d\n", ret);
}
mutex_unlock(&ar->conf_mutex);
}
static int ath11k_mac_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
{
struct ath11k *ar = hw->priv;
mutex_lock(&ar->conf_mutex);
*tx_ant = ar->cfg_tx_chainmask;
*rx_ant = ar->cfg_rx_chainmask;
mutex_unlock(&ar->conf_mutex);
return 0;
}
static int ath11k_mac_op_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
{
struct ath11k *ar = hw->priv;
int ret;
mutex_lock(&ar->conf_mutex);
ret = __ath11k_set_antenna(ar, tx_ant, rx_ant);
mutex_unlock(&ar->conf_mutex);
return ret;
}
static int ath11k_mac_op_ampdu_action(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_ampdu_params *params)
{
struct ath11k *ar = hw->priv;
int ret = -EINVAL;
mutex_lock(&ar->conf_mutex);
switch (params->action) {
case IEEE80211_AMPDU_RX_START:
ret = ath11k_dp_rx_ampdu_start(ar, params);
break;
case IEEE80211_AMPDU_RX_STOP:
ret = ath11k_dp_rx_ampdu_stop(ar, params);
break;
case IEEE80211_AMPDU_TX_START:
case IEEE80211_AMPDU_TX_STOP_CONT:
case IEEE80211_AMPDU_TX_STOP_FLUSH:
case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
case IEEE80211_AMPDU_TX_OPERATIONAL:
/* Tx A-MPDU aggregation offloaded to hw/fw so deny mac80211
* Tx aggregation requests.
*/
ret = -EOPNOTSUPP;
break;
}
mutex_unlock(&ar->conf_mutex);
return ret;
}
static int ath11k_mac_op_add_chanctx(struct ieee80211_hw *hw,
struct ieee80211_chanctx_conf *ctx)
{
struct ath11k *ar = hw->priv;
struct ath11k_base *ab = ar->ab;
ath11k_dbg(ab, ATH11K_DBG_MAC,
"mac chanctx add freq %hu width %d ptr %pK\n",
ctx->def.chan->center_freq, ctx->def.width, ctx);
mutex_lock(&ar->conf_mutex);
spin_lock_bh(&ar->data_lock);
/* TODO: In case of multiple channel context, populate rx_channel from
* Rx PPDU desc information.
*/
ar->rx_channel = ctx->def.chan;
spin_unlock_bh(&ar->data_lock);
mutex_unlock(&ar->conf_mutex);
return 0;
}
static void ath11k_mac_op_remove_chanctx(struct ieee80211_hw *hw,
struct ieee80211_chanctx_conf *ctx)
{
struct ath11k *ar = hw->priv;
struct ath11k_base *ab = ar->ab;
ath11k_dbg(ab, ATH11K_DBG_MAC,
"mac chanctx remove freq %hu width %d ptr %pK\n",
ctx->def.chan->center_freq, ctx->def.width, ctx);
mutex_lock(&ar->conf_mutex);
spin_lock_bh(&ar->data_lock);
/* TODO: In case of there is one more channel context left, populate
* rx_channel with the channel of that remaining channel context.
*/
ar->rx_channel = NULL;
spin_unlock_bh(&ar->data_lock);
mutex_unlock(&ar->conf_mutex);
}
static inline int ath11k_mac_vdev_setup_sync(struct ath11k *ar)
{
lockdep_assert_held(&ar->conf_mutex);
if (test_bit(ATH11K_FLAG_CRASH_FLUSH, &ar->ab->dev_flags))
return -ESHUTDOWN;
if (!wait_for_completion_timeout(&ar->vdev_setup_done,
ATH11K_VDEV_SETUP_TIMEOUT_HZ))
return -ETIMEDOUT;
return ar->last_wmi_vdev_start_status ? -EINVAL : 0;
}
static int
ath11k_mac_vdev_start_restart(struct ath11k_vif *arvif,
const struct cfg80211_chan_def *chandef,
bool restart)
{
struct ath11k *ar = arvif->ar;
struct ath11k_base *ab = ar->ab;
struct wmi_vdev_start_req_arg arg = {};
int he_support = arvif->vif->bss_conf.he_support;
int ret = 0;
lockdep_assert_held(&ar->conf_mutex);
reinit_completion(&ar->vdev_setup_done);
arg.vdev_id = arvif->vdev_id;
arg.dtim_period = arvif->dtim_period;
arg.bcn_intval = arvif->beacon_interval;
arg.channel.freq = chandef->chan->center_freq;
arg.channel.band_center_freq1 = chandef->center_freq1;
arg.channel.band_center_freq2 = chandef->center_freq2;
arg.channel.mode =
ath11k_phymodes[chandef->chan->band][chandef->width];
arg.channel.min_power = 0;
arg.channel.max_power = chandef->chan->max_power * 2;
arg.channel.max_reg_power = chandef->chan->max_reg_power * 2;
arg.channel.max_antenna_gain = chandef->chan->max_antenna_gain * 2;
arg.pref_tx_streams = ar->num_tx_chains;
arg.pref_rx_streams = ar->num_rx_chains;
if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
arg.ssid = arvif->u.ap.ssid;
arg.ssid_len = arvif->u.ap.ssid_len;
arg.hidden_ssid = arvif->u.ap.hidden_ssid;
/* For now allow DFS for AP mode */
arg.channel.chan_radar =
!!(chandef->chan->flags & IEEE80211_CHAN_RADAR);
arg.channel.passive = arg.channel.chan_radar;
spin_lock_bh(&ab->base_lock);
arg.regdomain = ar->ab->dfs_region;
spin_unlock_bh(&ab->base_lock);
/* TODO: Notify if secondary 80Mhz also needs radar detection */
if (he_support) {
ret = ath11k_set_he_mu_sounding_mode(ar, arvif);
if (ret) {
ath11k_warn(ar->ab, "failed to set he mode vdev %i\n",
arg.vdev_id);
return ret;
}
}
}
arg.channel.passive |= !!(chandef->chan->flags & IEEE80211_CHAN_NO_IR);
ath11k_dbg(ab, ATH11K_DBG_MAC,
"mac vdev %d start center_freq %d phymode %s\n",
arg.vdev_id, arg.channel.freq,
ath11k_wmi_phymode_str(arg.channel.mode));
ret = ath11k_wmi_vdev_start(ar, &arg, restart);
if (ret) {
ath11k_warn(ar->ab, "failed to %s WMI vdev %i\n",
restart ? "restart" : "start", arg.vdev_id);
return ret;
}
ret = ath11k_mac_vdev_setup_sync(ar);
if (ret) {
ath11k_warn(ab, "failed to synchronize setup for vdev %i %s: %d\n",
arg.vdev_id, restart ? "restart" : "start", ret);
return ret;
}
ar->num_started_vdevs++;
/* Enable CAC Flag in the driver by checking the channel DFS cac time,
* i.e dfs_cac_ms value which will be valid only for radar channels
* and state as NL80211_DFS_USABLE which indicates CAC needs to be
* done before channel usage. This flags is used to drop rx packets.
* during CAC.
*/
/* TODO Set the flag for other interface types as required */
if (arvif->vdev_type == WMI_VDEV_TYPE_AP &&
chandef->chan->dfs_cac_ms &&
chandef->chan->dfs_state == NL80211_DFS_USABLE) {
set_bit(ATH11K_CAC_RUNNING, &ar->dev_flags);
ath11k_dbg(ab, ATH11K_DBG_MAC,
"CAC Started in chan_freq %d for vdev %d\n",
arg.channel.freq, arg.vdev_id);
}
return 0;
}
static int ath11k_mac_vdev_stop(struct ath11k_vif *arvif)
{
struct ath11k *ar = arvif->ar;
int ret;
lockdep_assert_held(&ar->conf_mutex);
reinit_completion(&ar->vdev_setup_done);
spin_lock_bh(&ar->data_lock);
ar->vdev_stop_status.stop_in_progress = true;
ar->vdev_stop_status.vdev_id = arvif->vdev_id;
spin_unlock_bh(&ar->data_lock);
ret = ath11k_wmi_vdev_stop(ar, arvif->vdev_id);
if (ret) {
ath11k_warn(ar->ab, "failed to stop WMI vdev %i: %d\n",
arvif->vdev_id, ret);
goto err;
}
ret = ath11k_mac_vdev_setup_sync(ar);
if (ret) {
ath11k_warn(ar->ab, "failed to synchronize setup for vdev %i: %d\n",
arvif->vdev_id, ret);
goto err;
}
WARN_ON(ar->num_started_vdevs == 0);
ar->num_started_vdevs--;
if (test_bit(ATH11K_CAC_RUNNING, &ar->dev_flags)) {
clear_bit(ATH11K_CAC_RUNNING, &ar->dev_flags);
ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "CAC Stopped for vdev %d\n",
arvif->vdev_id);
}
return 0;
err:
spin_lock_bh(&ar->data_lock);
ar->vdev_stop_status.stop_in_progress = false;
spin_unlock_bh(&ar->data_lock);
return ret;
}
static int ath11k_mac_vdev_start(struct ath11k_vif *arvif,
const struct cfg80211_chan_def *chandef)
{
return ath11k_mac_vdev_start_restart(arvif, chandef, false);
}
static int ath11k_mac_vdev_restart(struct ath11k_vif *arvif,
const struct cfg80211_chan_def *chandef)
{
return ath11k_mac_vdev_start_restart(arvif, chandef, true);
}
struct ath11k_mac_change_chanctx_arg {
struct ieee80211_chanctx_conf *ctx;
struct ieee80211_vif_chanctx_switch *vifs;
int n_vifs;
int next_vif;
};
static void
ath11k_mac_change_chanctx_cnt_iter(void *data, u8 *mac,
struct ieee80211_vif *vif)
{
struct ath11k_mac_change_chanctx_arg *arg = data;
if (rcu_access_pointer(vif->chanctx_conf) != arg->ctx)
return;
arg->n_vifs++;
}
static void
ath11k_mac_change_chanctx_fill_iter(void *data, u8 *mac,
struct ieee80211_vif *vif)
{
struct ath11k_mac_change_chanctx_arg *arg = data;
struct ieee80211_chanctx_conf *ctx;
ctx = rcu_access_pointer(vif->chanctx_conf);
if (ctx != arg->ctx)
return;
if (WARN_ON(arg->next_vif == arg->n_vifs))
return;
arg->vifs[arg->next_vif].vif = vif;
arg->vifs[arg->next_vif].old_ctx = ctx;
arg->vifs[arg->next_vif].new_ctx = ctx;
arg->next_vif++;
}
static void
ath11k_mac_update_vif_chan(struct ath11k *ar,
struct ieee80211_vif_chanctx_switch *vifs,
int n_vifs)
{
struct ath11k_base *ab = ar->ab;
struct ath11k_vif *arvif;
int ret;
int i;
lockdep_assert_held(&ar->conf_mutex);
for (i = 0; i < n_vifs; i++) {
arvif = (void *)vifs[i].vif->drv_priv;
ath11k_dbg(ab, ATH11K_DBG_MAC,
"mac chanctx switch vdev_id %i freq %hu->%hu width %d->%d\n",
arvif->vdev_id,
vifs[i].old_ctx->def.chan->center_freq,
vifs[i].new_ctx->def.chan->center_freq,
vifs[i].old_ctx->def.width,
vifs[i].new_ctx->def.width);
if (WARN_ON(!arvif->is_started))
continue;
if (WARN_ON(!arvif->is_up))
continue;
ret = ath11k_wmi_vdev_down(ar, arvif->vdev_id);
if (ret) {
ath11k_warn(ab, "failed to down vdev %d: %d\n",
arvif->vdev_id, ret);
continue;
}
}
/* All relevant vdevs are downed and associated channel resources
* should be available for the channel switch now.
*/
/* TODO: Update ar->rx_channel */
for (i = 0; i < n_vifs; i++) {
arvif = (void *)vifs[i].vif->drv_priv;
if (WARN_ON(!arvif->is_started))
continue;
if (WARN_ON(!arvif->is_up))
continue;
ret = ath11k_mac_setup_bcn_tmpl(arvif);
if (ret)
ath11k_warn(ab, "failed to update bcn tmpl during csa: %d\n",
ret);
ret = ath11k_mac_vdev_restart(arvif, &vifs[i].new_ctx->def);
if (ret) {
ath11k_warn(ab, "failed to restart vdev %d: %d\n",
arvif->vdev_id, ret);
continue;
}
ret = ath11k_wmi_vdev_up(arvif->ar, arvif->vdev_id, arvif->aid,
arvif->bssid);
if (ret) {
ath11k_warn(ab, "failed to bring vdev up %d: %d\n",
arvif->vdev_id, ret);
continue;
}
}
}
static void
ath11k_mac_update_active_vif_chan(struct ath11k *ar,
struct ieee80211_chanctx_conf *ctx)
{
struct ath11k_mac_change_chanctx_arg arg = { .ctx = ctx };
lockdep_assert_held(&ar->conf_mutex);
ieee80211_iterate_active_interfaces_atomic(ar->hw,
IEEE80211_IFACE_ITER_NORMAL,
ath11k_mac_change_chanctx_cnt_iter,
&arg);
if (arg.n_vifs == 0)
return;
arg.vifs = kcalloc(arg.n_vifs, sizeof(arg.vifs[0]), GFP_KERNEL);
if (!arg.vifs)
return;
ieee80211_iterate_active_interfaces_atomic(ar->hw,
IEEE80211_IFACE_ITER_NORMAL,
ath11k_mac_change_chanctx_fill_iter,
&arg);
ath11k_mac_update_vif_chan(ar, arg.vifs, arg.n_vifs);
kfree(arg.vifs);
}
static void ath11k_mac_op_change_chanctx(struct ieee80211_hw *hw,
struct ieee80211_chanctx_conf *ctx,
u32 changed)
{
struct ath11k *ar = hw->priv;
struct ath11k_base *ab = ar->ab;
mutex_lock(&ar->conf_mutex);
ath11k_dbg(ab, ATH11K_DBG_MAC,
"mac chanctx change freq %hu width %d ptr %pK changed %x\n",
ctx->def.chan->center_freq, ctx->def.width, ctx, changed);
/* This shouldn't really happen because channel switching should use
* switch_vif_chanctx().
*/
if (WARN_ON(changed & IEEE80211_CHANCTX_CHANGE_CHANNEL))
goto unlock;
if (changed & IEEE80211_CHANCTX_CHANGE_WIDTH)
ath11k_mac_update_active_vif_chan(ar, ctx);
/* TODO: Recalc radar detection */
unlock:
mutex_unlock(&ar->conf_mutex);
}
static int
ath11k_mac_op_assign_vif_chanctx(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_chanctx_conf *ctx)
{
struct ath11k *ar = hw->priv;
struct ath11k_base *ab = ar->ab;
struct ath11k_vif *arvif = (void *)vif->drv_priv;
int ret;
mutex_lock(&ar->conf_mutex);
ath11k_dbg(ab, ATH11K_DBG_MAC,
"mac chanctx assign ptr %pK vdev_id %i\n",
ctx, arvif->vdev_id);
if (WARN_ON(arvif->is_started)) {
mutex_unlock(&ar->conf_mutex);
return -EBUSY;
}
ret = ath11k_mac_vdev_start(arvif, &ctx->def);
if (ret) {
ath11k_warn(ab, "failed to start vdev %i addr %pM on freq %d: %d\n",
arvif->vdev_id, vif->addr,
ctx->def.chan->center_freq, ret);
goto err;
}
if (arvif->vdev_type == WMI_VDEV_TYPE_MONITOR) {
ret = ath11k_monitor_vdev_up(ar, arvif->vdev_id);
if (ret)
goto err;
}
arvif->is_started = true;
/* TODO: Setup ps and cts/rts protection */
mutex_unlock(&ar->conf_mutex);
return 0;
err:
mutex_unlock(&ar->conf_mutex);
return ret;
}
static void
ath11k_mac_op_unassign_vif_chanctx(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_chanctx_conf *ctx)
{
struct ath11k *ar = hw->priv;
struct ath11k_base *ab = ar->ab;
struct ath11k_vif *arvif = (void *)vif->drv_priv;
int ret;
mutex_lock(&ar->conf_mutex);
ath11k_dbg(ab, ATH11K_DBG_MAC,
"mac chanctx unassign ptr %pK vdev_id %i\n",
ctx, arvif->vdev_id);
WARN_ON(!arvif->is_started);
ret = ath11k_mac_vdev_stop(arvif);
if (ret)
ath11k_warn(ab, "failed to stop vdev %i: %d\n",
arvif->vdev_id, ret);
arvif->is_started = false;
mutex_unlock(&ar->conf_mutex);
}
static int
ath11k_mac_op_switch_vif_chanctx(struct ieee80211_hw *hw,
struct ieee80211_vif_chanctx_switch *vifs,
int n_vifs,
enum ieee80211_chanctx_switch_mode mode)
{
struct ath11k *ar = hw->priv;
mutex_lock(&ar->conf_mutex);
ath11k_dbg(ar->ab, ATH11K_DBG_MAC,
"mac chanctx switch n_vifs %d mode %d\n",
n_vifs, mode);
ath11k_mac_update_vif_chan(ar, vifs, n_vifs);
mutex_unlock(&ar->conf_mutex);
return 0;
}
static int
ath11k_set_vdev_param_to_all_vifs(struct ath11k *ar, int param, u32 value)
{
struct ath11k_vif *arvif;
int ret = 0;
mutex_lock(&ar->conf_mutex);
list_for_each_entry(arvif, &ar->arvifs, list) {
ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "setting mac vdev %d param %d value %d\n",
param, arvif->vdev_id, value);
ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id,
param, value);
if (ret) {
ath11k_warn(ar->ab, "failed to set param %d for vdev %d: %d\n",
param, arvif->vdev_id, ret);
break;
}
}
mutex_unlock(&ar->conf_mutex);
return ret;
}
/* mac80211 stores device specific RTS/Fragmentation threshold value,
* this is set interface specific to firmware from ath11k driver
*/
static int ath11k_mac_op_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
{
struct ath11k *ar = hw->priv;
int param_id = WMI_VDEV_PARAM_RTS_THRESHOLD;
return ath11k_set_vdev_param_to_all_vifs(ar, param_id, value);
}
static int ath11k_mac_op_set_frag_threshold(struct ieee80211_hw *hw, u32 value)
{
/* Even though there's a WMI vdev param for fragmentation threshold no
* known firmware actually implements it. Moreover it is not possible to
* rely frame fragmentation to mac80211 because firmware clears the
* "more fragments" bit in frame control making it impossible for remote
* devices to reassemble frames.
*
* Hence implement a dummy callback just to say fragmentation isn't
* supported. This effectively prevents mac80211 from doing frame
* fragmentation in software.
*/
return -EOPNOTSUPP;
}
static void ath11k_mac_op_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
u32 queues, bool drop)
{
struct ath11k *ar = hw->priv;
long time_left;
if (drop)
return;
time_left = wait_event_timeout(ar->dp.tx_empty_waitq,
(atomic_read(&ar->dp.num_tx_pending) == 0),
ATH11K_FLUSH_TIMEOUT);
if (time_left == 0)
ath11k_warn(ar->ab, "failed to flush transmit queue %ld\n", time_left);
}
static int
ath11k_mac_bitrate_mask_num_ht_rates(struct ath11k *ar,
enum nl80211_band band,
const struct cfg80211_bitrate_mask *mask)
{
int num_rates = 0;
int i;
for (i = 0; i < ARRAY_SIZE(mask->control[band].ht_mcs); i++)
num_rates += hweight16(mask->control[band].ht_mcs[i]);
return num_rates;
}
static bool
ath11k_mac_has_single_legacy_rate(struct ath11k *ar,
enum nl80211_band band,
const struct cfg80211_bitrate_mask *mask)
{
int num_rates = 0;
num_rates = hweight32(mask->control[band].legacy);
if (ath11k_mac_bitrate_mask_num_ht_rates(ar, band, mask))
return false;
if (ath11k_mac_bitrate_mask_num_vht_rates(ar, band, mask))
return false;
return num_rates == 1;
}
static bool
ath11k_mac_bitrate_mask_get_single_nss(struct ath11k *ar,
enum nl80211_band band,
const struct cfg80211_bitrate_mask *mask,
int *nss)
{
struct ieee80211_supported_band *sband = &ar->mac.sbands[band];
u16 vht_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
u8 ht_nss_mask = 0;
u8 vht_nss_mask = 0;
int i;
/* No need to consider legacy here. Basic rates are always present
* in bitrate mask
*/
for (i = 0; i < ARRAY_SIZE(mask->control[band].ht_mcs); i++) {
if (mask->control[band].ht_mcs[i] == 0)
continue;
else if (mask->control[band].ht_mcs[i] ==
sband->ht_cap.mcs.rx_mask[i])
ht_nss_mask |= BIT(i);
else
return false;
}
for (i = 0; i < ARRAY_SIZE(mask->control[band].vht_mcs); i++) {
if (mask->control[band].vht_mcs[i] == 0)
continue;
else if (mask->control[band].vht_mcs[i] ==
ath11k_mac_get_max_vht_mcs_map(vht_mcs_map, i))
vht_nss_mask |= BIT(i);
else
return false;
}
if (ht_nss_mask != vht_nss_mask)
return false;
if (ht_nss_mask == 0)
return false;
if (BIT(fls(ht_nss_mask)) - 1 != ht_nss_mask)
return false;
*nss = fls(ht_nss_mask);
return true;
}
static int
ath11k_mac_get_single_legacy_rate(struct ath11k *ar,
enum nl80211_band band,
const struct cfg80211_bitrate_mask *mask,
u32 *rate, u8 *nss)
{
int rate_idx;
u16 bitrate;
u8 preamble;
u8 hw_rate;
if (hweight32(mask->control[band].legacy) != 1)
return -EINVAL;
rate_idx = ffs(mask->control[band].legacy) - 1;
if (band == NL80211_BAND_5GHZ)
rate_idx += ATH11K_MAC_FIRST_OFDM_RATE_IDX;
hw_rate = ath11k_legacy_rates[rate_idx].hw_value;
bitrate = ath11k_legacy_rates[rate_idx].bitrate;
if (ath11k_mac_bitrate_is_cck(bitrate))
preamble = WMI_RATE_PREAMBLE_CCK;
else
preamble = WMI_RATE_PREAMBLE_OFDM;
*nss = 1;
*rate = ATH11K_HW_RATE_CODE(hw_rate, 0, preamble);
return 0;
}
static int ath11k_mac_set_fixed_rate_params(struct ath11k_vif *arvif,
u32 rate, u8 nss, u8 sgi, u8 ldpc)
{
struct ath11k *ar = arvif->ar;
u32 vdev_param;
int ret;
lockdep_assert_held(&ar->conf_mutex);
ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "mac set fixed rate params vdev %i rate 0x%02hhx nss %hhu sgi %hhu\n",
arvif->vdev_id, rate, nss, sgi);
vdev_param = WMI_VDEV_PARAM_FIXED_RATE;
ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id,
vdev_param, rate);
if (ret) {
ath11k_warn(ar->ab, "failed to set fixed rate param 0x%02x: %d\n",
rate, ret);
return ret;
}
vdev_param = WMI_VDEV_PARAM_NSS;
ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id,
vdev_param, nss);
if (ret) {
ath11k_warn(ar->ab, "failed to set nss param %d: %d\n",
nss, ret);
return ret;
}
vdev_param = WMI_VDEV_PARAM_SGI;
ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id,
vdev_param, sgi);
if (ret) {
ath11k_warn(ar->ab, "failed to set sgi param %d: %d\n",
sgi, ret);
return ret;
}
vdev_param = WMI_VDEV_PARAM_LDPC;
ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id,
vdev_param, ldpc);
if (ret) {
ath11k_warn(ar->ab, "failed to set ldpc param %d: %d\n",
ldpc, ret);
return ret;
}
return 0;
}
static bool
ath11k_mac_vht_mcs_range_present(struct ath11k *ar,
enum nl80211_band band,
const struct cfg80211_bitrate_mask *mask)
{
int i;
u16 vht_mcs;
for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
vht_mcs = mask->control[band].vht_mcs[i];
switch (vht_mcs) {
case 0:
case BIT(8) - 1:
case BIT(9) - 1:
case BIT(10) - 1:
break;
default:
return false;
}
}
return true;
}
static void ath11k_mac_set_bitrate_mask_iter(void *data,
struct ieee80211_sta *sta)
{
struct ath11k_vif *arvif = data;
struct ath11k_sta *arsta = (struct ath11k_sta *)sta->drv_priv;
struct ath11k *ar = arvif->ar;
spin_lock_bh(&ar->data_lock);
arsta->changed |= IEEE80211_RC_SUPP_RATES_CHANGED;
spin_unlock_bh(&ar->data_lock);
ieee80211_queue_work(ar->hw, &arsta->update_wk);
}
static void ath11k_mac_disable_peer_fixed_rate(void *data,
struct ieee80211_sta *sta)
{
struct ath11k_vif *arvif = data;
struct ath11k *ar = arvif->ar;
int ret;
ret = ath11k_wmi_set_peer_param(ar, sta->addr,
arvif->vdev_id,
WMI_PEER_PARAM_FIXED_RATE,
WMI_FIXED_RATE_NONE);
if (ret)
ath11k_warn(ar->ab,
"failed to disable peer fixed rate for STA %pM ret %d\n",
sta->addr, ret);
}
static int
ath11k_mac_op_set_bitrate_mask(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
const struct cfg80211_bitrate_mask *mask)
{
struct ath11k_vif *arvif = (void *)vif->drv_priv;
struct cfg80211_chan_def def;
struct ath11k *ar = arvif->ar;
enum nl80211_band band;
const u8 *ht_mcs_mask;
const u16 *vht_mcs_mask;
u32 rate;
u8 nss;
u8 sgi;
u8 ldpc;
int single_nss;
int ret;
int num_rates;
if (ath11k_mac_vif_chan(vif, &def))
return -EPERM;
band = def.chan->band;
ht_mcs_mask = mask->control[band].ht_mcs;
vht_mcs_mask = mask->control[band].vht_mcs;
ldpc = !!(ar->ht_cap_info & WMI_HT_CAP_LDPC);
sgi = mask->control[band].gi;
if (sgi == NL80211_TXRATE_FORCE_LGI)
return -EINVAL;
/* mac80211 doesn't support sending a fixed HT/VHT MCS alone, rather it
* requires passing atleast one of used basic rates along with them.
* Fixed rate setting across different preambles(legacy, HT, VHT) is
* not supported by the FW. Hence use of FIXED_RATE vdev param is not
* suitable for setting single HT/VHT rates.
* But, there could be a single basic rate passed from userspace which
* can be done through the FIXED_RATE param.
*/
if (ath11k_mac_has_single_legacy_rate(ar, band, mask)) {
ret = ath11k_mac_get_single_legacy_rate(ar, band, mask, &rate,
&nss);
if (ret) {
ath11k_warn(ar->ab, "failed to get single legacy rate for vdev %i: %d\n",
arvif->vdev_id, ret);
return ret;
}
ieee80211_iterate_stations_atomic(ar->hw,
ath11k_mac_disable_peer_fixed_rate,
arvif);
} else if (ath11k_mac_bitrate_mask_get_single_nss(ar, band, mask,
&single_nss)) {
rate = WMI_FIXED_RATE_NONE;
nss = single_nss;
} else {
rate = WMI_FIXED_RATE_NONE;
nss = min_t(u32, ar->num_tx_chains,
max(ath11k_mac_max_ht_nss(ht_mcs_mask),
ath11k_mac_max_vht_nss(vht_mcs_mask)));
/* If multiple rates across different preambles are given
* we can reconfigure this info with all peers using PEER_ASSOC
* command with the below exception cases.
* - Single VHT Rate : peer_assoc command accommodates only MCS
* range values i.e 0-7, 0-8, 0-9 for VHT. Though mac80211
* mandates passing basic rates along with HT/VHT rates, FW
* doesn't allow switching from VHT to Legacy. Hence instead of
* setting legacy and VHT rates using RATEMASK_CMD vdev cmd,
* we could set this VHT rate as peer fixed rate param, which
* will override FIXED rate and FW rate control algorithm.
* If single VHT rate is passed along with HT rates, we select
* the VHT rate as fixed rate for vht peers.
* - Multiple VHT Rates : When Multiple VHT rates are given,this
* can be set using RATEMASK CMD which uses FW rate-ctl alg.
* TODO: Setting multiple VHT MCS and replacing peer_assoc with
* RATEMASK_CMDID can cover all use cases of setting rates
* across multiple preambles and rates within same type.
* But requires more validation of the command at this point.
*/
num_rates = ath11k_mac_bitrate_mask_num_vht_rates(ar, band,
mask);
if (!ath11k_mac_vht_mcs_range_present(ar, band, mask) &&
num_rates > 1) {
/* TODO: Handle multiple VHT MCS values setting using
* RATEMASK CMD
*/
ath11k_warn(ar->ab,
"Setting more than one MCS Value in bitrate mask not supported\n");
return -EINVAL;
}
ieee80211_iterate_stations_atomic(ar->hw,
ath11k_mac_disable_peer_fixed_rate,
arvif);
mutex_lock(&ar->conf_mutex);
arvif->bitrate_mask = *mask;
ieee80211_iterate_stations_atomic(ar->hw,
ath11k_mac_set_bitrate_mask_iter,
arvif);
mutex_unlock(&ar->conf_mutex);
}
mutex_lock(&ar->conf_mutex);
ret = ath11k_mac_set_fixed_rate_params(arvif, rate, nss, sgi, ldpc);
if (ret) {
ath11k_warn(ar->ab, "failed to set fixed rate params on vdev %i: %d\n",
arvif->vdev_id, ret);
}
mutex_unlock(&ar->conf_mutex);
return ret;
}
static void
ath11k_mac_op_reconfig_complete(struct ieee80211_hw *hw,
enum ieee80211_reconfig_type reconfig_type)
{
struct ath11k *ar = hw->priv;
if (reconfig_type != IEEE80211_RECONFIG_TYPE_RESTART)
return;
mutex_lock(&ar->conf_mutex);
if (ar->state == ATH11K_STATE_RESTARTED) {
ath11k_warn(ar->ab, "pdev %d successfully recovered\n",
ar->pdev->pdev_id);
ar->state = ATH11K_STATE_ON;
ieee80211_wake_queues(ar->hw);
}
mutex_unlock(&ar->conf_mutex);
}
static void
ath11k_mac_update_bss_chan_survey(struct ath11k *ar,
struct ieee80211_channel *channel)
{
int ret;
enum wmi_bss_chan_info_req_type type = WMI_BSS_SURVEY_REQ_TYPE_READ;
lockdep_assert_held(&ar->conf_mutex);
if (!test_bit(WMI_TLV_SERVICE_BSS_CHANNEL_INFO_64, ar->ab->wmi_sc.svc_map) ||
ar->rx_channel != channel)
return;
if (ar->scan.state != ATH11K_SCAN_IDLE) {
ath11k_dbg(ar->ab, ATH11K_DBG_MAC,
"ignoring bss chan info req while scanning..\n");
return;
}
reinit_completion(&ar->bss_survey_done);
ret = ath11k_wmi_pdev_bss_chan_info_request(ar, type);
if (ret) {
ath11k_warn(ar->ab, "failed to send pdev bss chan info request\n");
return;
}
ret = wait_for_completion_timeout(&ar->bss_survey_done, 3 * HZ);
if (ret == 0)
ath11k_warn(ar->ab, "bss channel survey timed out\n");
}
static int ath11k_mac_op_get_survey(struct ieee80211_hw *hw, int idx,
struct survey_info *survey)
{
struct ath11k *ar = hw->priv;
struct ieee80211_supported_band *sband;
struct survey_info *ar_survey;
int ret = 0;
if (idx >= ATH11K_NUM_CHANS)
return -ENOENT;
ar_survey = &ar->survey[idx];
mutex_lock(&ar->conf_mutex);
sband = hw->wiphy->bands[NL80211_BAND_2GHZ];
if (sband && idx >= sband->n_channels) {
idx -= sband->n_channels;
sband = NULL;
}
if (!sband)
sband = hw->wiphy->bands[NL80211_BAND_5GHZ];
if (!sband || idx >= sband->n_channels) {
ret = -ENOENT;
goto exit;
}
ath11k_mac_update_bss_chan_survey(ar, &sband->channels[idx]);
spin_lock_bh(&ar->data_lock);
memcpy(survey, ar_survey, sizeof(*survey));
spin_unlock_bh(&ar->data_lock);
survey->channel = &sband->channels[idx];
if (ar->rx_channel == survey->channel)
survey->filled |= SURVEY_INFO_IN_USE;
exit:
mutex_unlock(&ar->conf_mutex);
return ret;
}
static void ath11k_mac_op_sta_statistics(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
struct station_info *sinfo)
{
struct ath11k_sta *arsta = (struct ath11k_sta *)sta->drv_priv;
sinfo->rx_duration = arsta->rx_duration;
sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_DURATION);
if (!arsta->txrate.legacy && !arsta->txrate.nss)
return;
if (arsta->txrate.legacy) {
sinfo->txrate.legacy = arsta->txrate.legacy;
} else {
sinfo->txrate.mcs = arsta->txrate.mcs;
sinfo->txrate.nss = arsta->txrate.nss;
sinfo->txrate.bw = arsta->txrate.bw;
sinfo->txrate.he_gi = arsta->txrate.he_gi;
sinfo->txrate.he_dcm = arsta->txrate.he_dcm;
sinfo->txrate.he_ru_alloc = arsta->txrate.he_ru_alloc;
}
sinfo->txrate.flags = arsta->txrate.flags;
sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
/* TODO: Use real NF instead of default one. */
sinfo->signal = arsta->rssi_comb + ATH11K_DEFAULT_NOISE_FLOOR;
}
static const struct ieee80211_ops ath11k_ops = {
.tx = ath11k_mac_op_tx,
.start = ath11k_mac_op_start,
.stop = ath11k_mac_op_stop,
.reconfig_complete = ath11k_mac_op_reconfig_complete,
.add_interface = ath11k_mac_op_add_interface,
.remove_interface = ath11k_mac_op_remove_interface,
.config = ath11k_mac_op_config,
.bss_info_changed = ath11k_mac_op_bss_info_changed,
.configure_filter = ath11k_mac_op_configure_filter,
.hw_scan = ath11k_mac_op_hw_scan,
.cancel_hw_scan = ath11k_mac_op_cancel_hw_scan,
.set_key = ath11k_mac_op_set_key,
.sta_state = ath11k_mac_op_sta_state,
.sta_set_txpwr = ath11k_mac_op_sta_set_txpwr,
.sta_rc_update = ath11k_mac_op_sta_rc_update,
.conf_tx = ath11k_mac_op_conf_tx,
.set_antenna = ath11k_mac_op_set_antenna,
.get_antenna = ath11k_mac_op_get_antenna,
.ampdu_action = ath11k_mac_op_ampdu_action,
.add_chanctx = ath11k_mac_op_add_chanctx,
.remove_chanctx = ath11k_mac_op_remove_chanctx,
.change_chanctx = ath11k_mac_op_change_chanctx,
.assign_vif_chanctx = ath11k_mac_op_assign_vif_chanctx,
.unassign_vif_chanctx = ath11k_mac_op_unassign_vif_chanctx,
.switch_vif_chanctx = ath11k_mac_op_switch_vif_chanctx,
.set_rts_threshold = ath11k_mac_op_set_rts_threshold,
.set_frag_threshold = ath11k_mac_op_set_frag_threshold,
.set_bitrate_mask = ath11k_mac_op_set_bitrate_mask,
.get_survey = ath11k_mac_op_get_survey,
.flush = ath11k_mac_op_flush,
.sta_statistics = ath11k_mac_op_sta_statistics,
CFG80211_TESTMODE_CMD(ath11k_tm_cmd)
#ifdef CONFIG_MAC80211_DEBUGFS
.sta_add_debugfs = ath11k_sta_add_debugfs,
#endif
};
static const struct ieee80211_iface_limit ath11k_if_limits[] = {
{
.max = 1,
.types = BIT(NL80211_IFTYPE_STATION),
},
{
.max = 16,
.types = BIT(NL80211_IFTYPE_AP)
#ifdef CONFIG_MAC80211_MESH
| BIT(NL80211_IFTYPE_MESH_POINT)
#endif
},
};
static const struct ieee80211_iface_combination ath11k_if_comb[] = {
{
.limits = ath11k_if_limits,
.n_limits = ARRAY_SIZE(ath11k_if_limits),
.max_interfaces = 16,
.num_different_channels = 1,
.beacon_int_infra_match = true,
.beacon_int_min_gcd = 100,
.radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
BIT(NL80211_CHAN_WIDTH_20) |
BIT(NL80211_CHAN_WIDTH_40) |
BIT(NL80211_CHAN_WIDTH_80),
},
};
static void ath11k_mac_update_ch_list(struct ath11k *ar,
struct ieee80211_supported_band *band,
u32 freq_low, u32 freq_high)
{
int i;
if (!(freq_low && freq_high))
return;
for (i = 0; i < band->n_channels; i++) {
if (band->channels[i].center_freq < freq_low ||
band->channels[i].center_freq > freq_high)
band->channels[i].flags |= IEEE80211_CHAN_DISABLED;
}
}
static int ath11k_mac_setup_channels_rates(struct ath11k *ar,
u32 supported_bands)
{
struct ieee80211_supported_band *band;
struct ath11k_hal_reg_capabilities_ext *reg_cap;
void *channels;
BUILD_BUG_ON((ARRAY_SIZE(ath11k_2ghz_channels) +
ARRAY_SIZE(ath11k_5ghz_channels)) !=
ATH11K_NUM_CHANS);
reg_cap = &ar->ab->hal_reg_cap[ar->pdev_idx];
if (supported_bands & WMI_HOST_WLAN_2G_CAP) {
channels = kmemdup(ath11k_2ghz_channels,
sizeof(ath11k_2ghz_channels),
GFP_KERNEL);
if (!channels)
return -ENOMEM;
band = &ar->mac.sbands[NL80211_BAND_2GHZ];
band->n_channels = ARRAY_SIZE(ath11k_2ghz_channels);
band->channels = channels;
band->n_bitrates = ath11k_g_rates_size;
band->bitrates = ath11k_g_rates;
ar->hw->wiphy->bands[NL80211_BAND_2GHZ] = band;
ath11k_mac_update_ch_list(ar, band,
reg_cap->low_2ghz_chan,
reg_cap->high_2ghz_chan);
}
if (supported_bands & WMI_HOST_WLAN_5G_CAP) {
channels = kmemdup(ath11k_5ghz_channels,
sizeof(ath11k_5ghz_channels),
GFP_KERNEL);
if (!channels) {
kfree(ar->mac.sbands[NL80211_BAND_2GHZ].channels);
return -ENOMEM;
}
band = &ar->mac.sbands[NL80211_BAND_5GHZ];
band->n_channels = ARRAY_SIZE(ath11k_5ghz_channels);
band->channels = channels;
band->n_bitrates = ath11k_a_rates_size;
band->bitrates = ath11k_a_rates;
ar->hw->wiphy->bands[NL80211_BAND_5GHZ] = band;
ath11k_mac_update_ch_list(ar, band,
reg_cap->low_5ghz_chan,
reg_cap->high_5ghz_chan);
}
return 0;
}
static const u8 ath11k_if_types_ext_capa[] = {
[0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING,
[7] = WLAN_EXT_CAPA8_OPMODE_NOTIF,
};
static const u8 ath11k_if_types_ext_capa_sta[] = {
[0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING,
[7] = WLAN_EXT_CAPA8_OPMODE_NOTIF,
[9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT,
};
static const u8 ath11k_if_types_ext_capa_ap[] = {
[0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING,
[7] = WLAN_EXT_CAPA8_OPMODE_NOTIF,
[9] = WLAN_EXT_CAPA10_TWT_RESPONDER_SUPPORT,
};
static const struct wiphy_iftype_ext_capab ath11k_iftypes_ext_capa[] = {
{
.extended_capabilities = ath11k_if_types_ext_capa,
.extended_capabilities_mask = ath11k_if_types_ext_capa,
.extended_capabilities_len = sizeof(ath11k_if_types_ext_capa),
}, {
.iftype = NL80211_IFTYPE_STATION,
.extended_capabilities = ath11k_if_types_ext_capa_sta,
.extended_capabilities_mask = ath11k_if_types_ext_capa_sta,
.extended_capabilities_len =
sizeof(ath11k_if_types_ext_capa_sta),
}, {
.iftype = NL80211_IFTYPE_AP,
.extended_capabilities = ath11k_if_types_ext_capa_ap,
.extended_capabilities_mask = ath11k_if_types_ext_capa_ap,
.extended_capabilities_len =
sizeof(ath11k_if_types_ext_capa_ap),
},
};
static int ath11k_mac_register(struct ath11k *ar)
{
struct ath11k_base *ab = ar->ab;
struct ath11k_pdev_cap *cap = &ar->pdev->cap;
static const u32 cipher_suites[] = {
WLAN_CIPHER_SUITE_TKIP,
WLAN_CIPHER_SUITE_CCMP,
WLAN_CIPHER_SUITE_AES_CMAC,
WLAN_CIPHER_SUITE_BIP_CMAC_256,
WLAN_CIPHER_SUITE_BIP_GMAC_128,
WLAN_CIPHER_SUITE_BIP_GMAC_256,
WLAN_CIPHER_SUITE_GCMP,
WLAN_CIPHER_SUITE_GCMP_256,
WLAN_CIPHER_SUITE_CCMP_256,
};
int ret;
u32 ht_cap = 0;
ath11k_pdev_caps_update(ar);
SET_IEEE80211_PERM_ADDR(ar->hw, ar->mac_addr);
SET_IEEE80211_DEV(ar->hw, ab->dev);
ret = ath11k_mac_setup_channels_rates(ar,
cap->supported_bands);
if (ret)
goto err_free;
ath11k_mac_setup_ht_vht_cap(ar, cap, &ht_cap);
ath11k_mac_setup_he_cap(ar, cap);
ar->hw->wiphy->available_antennas_rx = cap->rx_chain_mask;
ar->hw->wiphy->available_antennas_tx = cap->tx_chain_mask;
ar->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
BIT(NL80211_IFTYPE_AP) |
BIT(NL80211_IFTYPE_MESH_POINT);
ieee80211_hw_set(ar->hw, SIGNAL_DBM);
ieee80211_hw_set(ar->hw, SUPPORTS_PS);
ieee80211_hw_set(ar->hw, SUPPORTS_DYNAMIC_PS);
ieee80211_hw_set(ar->hw, MFP_CAPABLE);
ieee80211_hw_set(ar->hw, REPORTS_TX_ACK_STATUS);
ieee80211_hw_set(ar->hw, HAS_RATE_CONTROL);
ieee80211_hw_set(ar->hw, AP_LINK_PS);
ieee80211_hw_set(ar->hw, SPECTRUM_MGMT);
ieee80211_hw_set(ar->hw, SUPPORT_FAST_XMIT);
ieee80211_hw_set(ar->hw, CONNECTION_MONITOR);
ieee80211_hw_set(ar->hw, SUPPORTS_PER_STA_GTK);
ieee80211_hw_set(ar->hw, WANT_MONITOR_VIF);
ieee80211_hw_set(ar->hw, CHANCTX_STA_CSA);
ieee80211_hw_set(ar->hw, QUEUE_CONTROL);
ieee80211_hw_set(ar->hw, SUPPORTS_TX_FRAG);
ieee80211_hw_set(ar->hw, REPORTS_LOW_ACK);
if (ht_cap & WMI_HT_CAP_ENABLED) {
ieee80211_hw_set(ar->hw, AMPDU_AGGREGATION);
ieee80211_hw_set(ar->hw, TX_AMPDU_SETUP_IN_HW);
ieee80211_hw_set(ar->hw, SUPPORTS_REORDERING_BUFFER);
ieee80211_hw_set(ar->hw, SUPPORTS_AMSDU_IN_AMPDU);
}
ar->hw->wiphy->features |= NL80211_FEATURE_STATIC_SMPS;
ar->hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
/* TODO: Check if HT capability advertised from firmware is different
* for each band for a dual band capable radio. It will be tricky to
* handle it when the ht capability different for each band.
*/
if (ht_cap & WMI_HT_CAP_DYNAMIC_SMPS)
ar->hw->wiphy->features |= NL80211_FEATURE_DYNAMIC_SMPS;
ar->hw->wiphy->max_scan_ssids = WLAN_SCAN_PARAMS_MAX_SSID;
ar->hw->wiphy->max_scan_ie_len = WLAN_SCAN_PARAMS_MAX_IE_LEN;
ar->hw->max_listen_interval = ATH11K_MAX_HW_LISTEN_INTERVAL;
ar->hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
ar->hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
ar->hw->wiphy->max_remain_on_channel_duration = 5000;
ar->hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
ar->hw->wiphy->features |= NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
NL80211_FEATURE_AP_SCAN;
ar->max_num_stations = TARGET_NUM_STATIONS;
ar->max_num_peers = TARGET_NUM_PEERS_PDEV;
ar->hw->wiphy->max_ap_assoc_sta = ar->max_num_stations;
ar->hw->queues = ATH11K_HW_MAX_QUEUES;
ar->hw->offchannel_tx_hw_queue = ATH11K_HW_MAX_QUEUES - 1;
ar->hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF;
ar->hw->vif_data_size = sizeof(struct ath11k_vif);
ar->hw->sta_data_size = sizeof(struct ath11k_sta);
ar->hw->wiphy->iface_combinations = ath11k_if_comb;
ar->hw->wiphy->n_iface_combinations = ARRAY_SIZE(ath11k_if_comb);
wiphy_ext_feature_set(ar->hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
wiphy_ext_feature_set(ar->hw->wiphy, NL80211_EXT_FEATURE_STA_TX_PWR);
ar->hw->wiphy->cipher_suites = cipher_suites;
ar->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
ar->hw->wiphy->iftype_ext_capab = ath11k_iftypes_ext_capa;
ar->hw->wiphy->num_iftype_ext_capab =
ARRAY_SIZE(ath11k_iftypes_ext_capa);
ath11k_reg_init(ar);
/* advertise HW checksum offload capabilities */
ar->hw->netdev_features = NETIF_F_HW_CSUM;
ret = ieee80211_register_hw(ar->hw);
if (ret) {
ath11k_err(ar->ab, "ieee80211 registration failed: %d\n", ret);
goto err_free;
}
/* Apply the regd received during initialization */
ret = ath11k_regd_update(ar, true);
if (ret) {
ath11k_err(ar->ab, "ath11k regd update failed: %d\n", ret);
goto err_free;
}
ret = ath11k_debug_register(ar);
if (ret) {
ath11k_err(ar->ab, "debugfs registration failed: %d\n", ret);
goto err_free;
}
return 0;
err_free:
kfree(ar->mac.sbands[NL80211_BAND_2GHZ].channels);
kfree(ar->mac.sbands[NL80211_BAND_5GHZ].channels);
SET_IEEE80211_DEV(ar->hw, NULL);
return ret;
}
void ath11k_mac_unregister(struct ath11k_base *ab)
{
struct ath11k *ar;
struct ath11k_pdev *pdev;
int i;
for (i = 0; i < ab->num_radios; i++) {
pdev = &ab->pdevs[i];
ar = pdev->ar;
if (!ar)
continue;
cancel_work_sync(&ar->regd_update_work);
ieee80211_unregister_hw(ar->hw);
idr_for_each(&ar->txmgmt_idr, ath11k_mac_tx_mgmt_pending_free, ar);
idr_destroy(&ar->txmgmt_idr);
kfree(ar->mac.sbands[NL80211_BAND_2GHZ].channels);
kfree(ar->mac.sbands[NL80211_BAND_5GHZ].channels);
SET_IEEE80211_DEV(ar->hw, NULL);
}
}
int ath11k_mac_create(struct ath11k_base *ab)
{
struct ieee80211_hw *hw;
struct ath11k *ar;
struct ath11k_pdev *pdev;
int ret;
int i;
if (test_bit(ATH11K_FLAG_REGISTERED, &ab->dev_flags))
return 0;
for (i = 0; i < ab->num_radios; i++) {
pdev = &ab->pdevs[i];
hw = ieee80211_alloc_hw(sizeof(struct ath11k), &ath11k_ops);
if (!hw) {
ath11k_warn(ab, "failed to allocate mac80211 hw device\n");
ret = -ENOMEM;
goto err_destroy_mac;
}
ar = hw->priv;
ar->hw = hw;
ar->ab = ab;
ar->pdev = pdev;
ar->pdev_idx = i;
ar->lmac_id = ath11k_core_get_hw_mac_id(ab, i);
ar->wmi = &ab->wmi_sc.wmi[i];
/* FIXME wmi[0] is already initialized during attach,
* Should we do this again?
*/
ath11k_wmi_pdev_attach(ab, i);
ar->cfg_tx_chainmask = pdev->cap.tx_chain_mask;
ar->cfg_rx_chainmask = pdev->cap.rx_chain_mask;
ar->num_tx_chains = get_num_chains(pdev->cap.tx_chain_mask);
ar->num_rx_chains = get_num_chains(pdev->cap.rx_chain_mask);
if (ab->pdevs_macaddr_valid) {
ether_addr_copy(ar->mac_addr, pdev->mac_addr);
} else {
ether_addr_copy(ar->mac_addr, ab->mac_addr);
ar->mac_addr[4] += i;
}
pdev->ar = ar;
spin_lock_init(&ar->data_lock);
INIT_LIST_HEAD(&ar->arvifs);
INIT_LIST_HEAD(&ar->ppdu_stats_info);
mutex_init(&ar->conf_mutex);
init_completion(&ar->vdev_setup_done);
init_completion(&ar->peer_assoc_done);
init_completion(&ar->install_key_done);
init_completion(&ar->bss_survey_done);
init_completion(&ar->scan.started);
init_completion(&ar->scan.completed);
INIT_DELAYED_WORK(&ar->scan.timeout, ath11k_scan_timeout_work);
INIT_WORK(&ar->regd_update_work, ath11k_regd_update_work);
INIT_WORK(&ar->wmi_mgmt_tx_work, ath11k_mgmt_over_wmi_tx_work);
skb_queue_head_init(&ar->wmi_mgmt_tx_queue);
clear_bit(ATH11K_FLAG_MONITOR_ENABLED, &ar->monitor_flags);
ret = ath11k_mac_register(ar);
if (ret) {
ath11k_warn(ab, "failed to register hw device\n");
pdev->ar = NULL;
ieee80211_free_hw(hw);
goto err_destroy_mac;
}
idr_init(&ar->txmgmt_idr);
spin_lock_init(&ar->txmgmt_idr_lock);
}
/* Initialize channel counters frequency value in hertz */
ab->cc_freq_hz = IPQ8074_CC_FREQ_HERTZ;
ab->free_vdev_map = (1LL << (ab->num_radios * TARGET_NUM_VDEVS)) - 1;
return 0;
err_destroy_mac:
ath11k_mac_destroy(ab);
return ret;
}
void ath11k_mac_destroy(struct ath11k_base *ab)
{
struct ath11k *ar;
struct ath11k_pdev *pdev;
int i;
for (i = 0; i < ab->num_radios; i++) {
pdev = &ab->pdevs[i];
ar = pdev->ar;
if (!ar)
continue;
ieee80211_free_hw(ar->hw);
pdev->ar = NULL;
}
}
