diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath11k/mac.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath11k/mac.c | 5907 |
1 files changed, 5907 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c new file mode 100644 index 000000000000..6640662f5ede --- /dev/null +++ b/drivers/net/wireless/ath/ath11k/mac.c @@ -0,0 +1,5907 @@ +// 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 (vif->bss_conf.he_support) { + ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id, + WMI_VDEV_PARAM_BA_MODE, + WMI_BA_MODE_BUFFER_SIZE_256); + if (ret) + ath11k_warn(ar->ab, + "failed to set BA BUFFER SIZE 256 for vdev: %d\n", + arvif->vdev_id); + else + ath11k_dbg(ar->ab, ATH11K_DBG_MAC, + "Set BA BUFFER SIZE 256 for VDEV: %d\n", + arvif->vdev_id); + } + } + + 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->pdev_id); + else + ath11k_wmi_send_twt_disable_cmd(ar, ar->pdev->pdev_id); + } + + 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_NONE; + 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 void +ath11k_mac_filter_he_cap_mesh(struct ieee80211_he_cap_elem *he_cap_elem) +{ + u8 m; + + m = IEEE80211_HE_MAC_CAP0_TWT_RES | + IEEE80211_HE_MAC_CAP0_TWT_REQ; + he_cap_elem->mac_cap_info[0] &= ~m; + + m = IEEE80211_HE_MAC_CAP2_TRS | + IEEE80211_HE_MAC_CAP2_BCAST_TWT | + IEEE80211_HE_MAC_CAP2_MU_CASCADING; + he_cap_elem->mac_cap_info[2] &= ~m; + + m = IEEE80211_HE_MAC_CAP3_FLEX_TWT_SCHED | + IEEE80211_HE_MAC_CAP2_BCAST_TWT | + IEEE80211_HE_MAC_CAP2_MU_CASCADING; + he_cap_elem->mac_cap_info[3] &= ~m; + + m = IEEE80211_HE_MAC_CAP4_BSRP_BQRP_A_MPDU_AGG | + IEEE80211_HE_MAC_CAP4_BQR; + he_cap_elem->mac_cap_info[4] &= ~m; + + m = IEEE80211_HE_MAC_CAP5_SUBCHAN_SELECVITE_TRANSMISSION | + IEEE80211_HE_MAC_CAP5_UL_2x996_TONE_RU | + IEEE80211_HE_MAC_CAP5_PUNCTURED_SOUNDING | + IEEE80211_HE_MAC_CAP5_HT_VHT_TRIG_FRAME_RX; + he_cap_elem->mac_cap_info[5] &= ~m; + + m = IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO | + IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO; + he_cap_elem->phy_cap_info[2] &= ~m; + + m = IEEE80211_HE_PHY_CAP3_RX_HE_MU_PPDU_FROM_NON_AP_STA | + IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK | + IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK; + he_cap_elem->phy_cap_info[3] &= ~m; + + m = IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER; + he_cap_elem->phy_cap_info[4] &= ~m; + + m = IEEE80211_HE_PHY_CAP5_NG16_MU_FEEDBACK; + he_cap_elem->phy_cap_info[5] &= ~m; + + m = IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_75_MU | + IEEE80211_HE_PHY_CAP6_TRIG_MU_BEAMFORMER_FB | + IEEE80211_HE_PHY_CAP6_TRIG_CQI_FB | + IEEE80211_HE_PHY_CAP6_PARTIAL_BANDWIDTH_DL_MUMIMO; + he_cap_elem->phy_cap_info[6] &= ~m; + + m = IEEE80211_HE_PHY_CAP7_SRP_BASED_SR | + IEEE80211_HE_PHY_CAP7_POWER_BOOST_FACTOR_AR | + IEEE80211_HE_PHY_CAP7_STBC_TX_ABOVE_80MHZ | + IEEE80211_HE_PHY_CAP7_STBC_RX_ABOVE_80MHZ; + he_cap_elem->phy_cap_info[7] &= ~m; + + m = IEEE80211_HE_PHY_CAP8_HE_ER_SU_PPDU_4XLTF_AND_08_US_GI | + IEEE80211_HE_PHY_CAP8_20MHZ_IN_40MHZ_HE_PPDU_IN_2G | + IEEE80211_HE_PHY_CAP8_20MHZ_IN_160MHZ_HE_PPDU | + IEEE80211_HE_PHY_CAP8_80MHZ_IN_160MHZ_HE_PPDU; + he_cap_elem->phy_cap_info[8] &= ~m; + + m = IEEE80211_HE_PHY_CAP9_LONGER_THAN_16_SIGB_OFDM_SYM | + IEEE80211_HE_PHY_CAP9_NON_TRIGGERED_CQI_FEEDBACK | + IEEE80211_HE_PHY_CAP9_RX_1024_QAM_LESS_THAN_242_TONE_RU | + IEEE80211_HE_PHY_CAP9_TX_1024_QAM_LESS_THAN_242_TONE_RU | + IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB | + IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB; + he_cap_elem->phy_cap_info[9] &= ~m; +} + +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: + case NL80211_IFTYPE_MESH_POINT: + 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; + case NL80211_IFTYPE_MESH_POINT: + ath11k_mac_filter_he_cap_mesh(he_cap_elem); + 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; + int count; + + 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]; + band->n_iftype_data = count; + } + + 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; + } + + ret = ath11k_wmi_pdev_set_ps_mode(ar, arvif->vdev_id, false); + if (ret) { + ath11k_warn(ar->ab, "failed to disable vdev %d ps mode: %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); + } + + 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); + } + + ret = ath11k_mac_set_txbf_conf(arvif); + if (ret) + ath11k_warn(ab, "failed to set txbf conf for vdev %d: %d\n", + arvif->vdev_id, ret); + + 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_ab.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); + + sinfo->tx_duration = arsta->tx_duration; + sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_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_ATH11K_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 void __ath11k_mac_unregister(struct ath11k *ar) +{ + 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); +} + +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; + + __ath11k_mac_unregister(ar); + } +} + +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; +} + +int ath11k_mac_register(struct ath11k_base *ab) +{ + struct ath11k *ar; + struct ath11k_pdev *pdev; + int i; + int ret; + + for (i = 0; i < ab->num_radios; i++) { + pdev = &ab->pdevs[i]; + ar = pdev->ar; + 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; + } + + ret = __ath11k_mac_register(ar); + if (ret) + goto err_cleanup; + + 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_cleanup: + for (i = i - 1; i >= 0; i--) { + pdev = &ab->pdevs[i]; + ar = pdev->ar; + __ath11k_mac_unregister(ar); + } + + return ret; +} + +int ath11k_mac_allocate(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_free_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_ab.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); + + 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); + } + + return 0; + +err_free_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; + } +} |