Commit fec4b898 authored by Carl Huang's avatar Carl Huang Committed by Kalle Valo

ath11k: Add WoW net-detect functionality

Implement net-detect feature by setting flag
WIPHY_WOWLAN_NET_DETECT if firmware supports this
feature. Driver sets the related PNO configuration
to firmware before entering WoW and firmware then
scans periodically and wakes up host if a specific
SSID is found.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Signed-off-by: default avatarCarl Huang <quic_cjhuang@quicinc.com>
Signed-off-by: default avatarKalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/1644308006-22784-3-git-send-email-quic_cjhuang@quicinc.com
parent ba9177fc
......@@ -617,6 +617,7 @@ struct ath11k {
bool regdom_set_by_user;
int hw_rate_code;
u8 twt_enabled;
bool nlo_enabled;
};
struct ath11k_band_cap {
......
......@@ -8498,6 +8498,18 @@ static int __ath11k_mac_register(struct ath11k *ar)
NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
}
if (test_bit(WMI_TLV_SERVICE_NLO, ar->wmi->wmi_ab->svc_map)) {
ar->hw->wiphy->max_sched_scan_ssids = WMI_PNO_MAX_SUPP_NETWORKS;
ar->hw->wiphy->max_match_sets = WMI_PNO_MAX_SUPP_NETWORKS;
ar->hw->wiphy->max_sched_scan_ie_len = WMI_PNO_MAX_IE_LENGTH;
ar->hw->wiphy->max_sched_scan_plans = WMI_PNO_MAX_SCHED_SCAN_PLANS;
ar->hw->wiphy->max_sched_scan_plan_interval =
WMI_PNO_MAX_SCHED_SCAN_PLAN_INT;
ar->hw->wiphy->max_sched_scan_plan_iterations =
WMI_PNO_MAX_SCHED_SCAN_PLAN_ITRNS;
ar->hw->wiphy->features |= NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
}
ret = ath11k_wow_init(ar);
if (ret) {
ath11k_warn(ar->ab, "failed to init wow: %d\n", ret);
......
......@@ -8393,3 +8393,157 @@ int ath11k_wmi_wow_del_pattern(struct ath11k *ar, u32 vdev_id, u32 pattern_id)
return ath11k_wmi_cmd_send(ar->wmi, skb, WMI_WOW_DEL_WAKE_PATTERN_CMDID);
}
static struct sk_buff *
ath11k_wmi_op_gen_config_pno_start(struct ath11k *ar,
u32 vdev_id,
struct wmi_pno_scan_req *pno)
{
struct nlo_configured_parameters *nlo_list;
struct wmi_wow_nlo_config_cmd *cmd;
struct wmi_tlv *tlv;
struct sk_buff *skb;
u32 *channel_list;
size_t len, nlo_list_len, channel_list_len;
u8 *ptr;
u32 i;
len = sizeof(*cmd) +
sizeof(*tlv) +
/* TLV place holder for array of structures
* nlo_configured_parameters(nlo_list)
*/
sizeof(*tlv);
/* TLV place holder for array of uint32 channel_list */
channel_list_len = sizeof(u32) * pno->a_networks[0].channel_count;
len += channel_list_len;
nlo_list_len = sizeof(*nlo_list) * pno->uc_networks_count;
len += nlo_list_len;
skb = ath11k_wmi_alloc_skb(ar->wmi->wmi_ab, len);
if (!skb)
return ERR_PTR(-ENOMEM);
ptr = (u8 *)skb->data;
cmd = (struct wmi_wow_nlo_config_cmd *)ptr;
cmd->tlv_header = FIELD_PREP(WMI_TLV_TAG, WMI_TAG_NLO_CONFIG_CMD) |
FIELD_PREP(WMI_TLV_LEN, sizeof(*cmd) - TLV_HDR_SIZE);
cmd->vdev_id = pno->vdev_id;
cmd->flags = WMI_NLO_CONFIG_START | WMI_NLO_CONFIG_SSID_HIDE_EN;
/* current FW does not support min-max range for dwell time */
cmd->active_dwell_time = pno->active_max_time;
cmd->passive_dwell_time = pno->passive_max_time;
if (pno->do_passive_scan)
cmd->flags |= WMI_NLO_CONFIG_SCAN_PASSIVE;
cmd->fast_scan_period = pno->fast_scan_period;
cmd->slow_scan_period = pno->slow_scan_period;
cmd->fast_scan_max_cycles = pno->fast_scan_max_cycles;
cmd->delay_start_time = pno->delay_start_time;
if (pno->enable_pno_scan_randomization) {
cmd->flags |= WMI_NLO_CONFIG_SPOOFED_MAC_IN_PROBE_REQ |
WMI_NLO_CONFIG_RANDOM_SEQ_NO_IN_PROBE_REQ;
ether_addr_copy(cmd->mac_addr.addr, pno->mac_addr);
ether_addr_copy(cmd->mac_mask.addr, pno->mac_addr_mask);
ath11k_ce_byte_swap(cmd->mac_addr.addr, 8);
ath11k_ce_byte_swap(cmd->mac_mask.addr, 8);
}
ptr += sizeof(*cmd);
/* nlo_configured_parameters(nlo_list) */
cmd->no_of_ssids = pno->uc_networks_count;
tlv = (struct wmi_tlv *)ptr;
tlv->header = FIELD_PREP(WMI_TLV_TAG,
WMI_TAG_ARRAY_STRUCT) |
FIELD_PREP(WMI_TLV_LEN, nlo_list_len);
ptr += sizeof(*tlv);
nlo_list = (struct nlo_configured_parameters *)ptr;
for (i = 0; i < cmd->no_of_ssids; i++) {
tlv = (struct wmi_tlv *)(&nlo_list[i].tlv_header);
tlv->header = FIELD_PREP(WMI_TLV_TAG, WMI_TAG_ARRAY_BYTE) |
FIELD_PREP(WMI_TLV_LEN, sizeof(*nlo_list) - sizeof(*tlv));
nlo_list[i].ssid.valid = true;
nlo_list[i].ssid.ssid.ssid_len = pno->a_networks[i].ssid.ssid_len;
memcpy(nlo_list[i].ssid.ssid.ssid,
pno->a_networks[i].ssid.ssid,
nlo_list[i].ssid.ssid.ssid_len);
ath11k_ce_byte_swap(nlo_list[i].ssid.ssid.ssid,
roundup(nlo_list[i].ssid.ssid.ssid_len, 4));
if (pno->a_networks[i].rssi_threshold &&
pno->a_networks[i].rssi_threshold > -300) {
nlo_list[i].rssi_cond.valid = true;
nlo_list[i].rssi_cond.rssi =
pno->a_networks[i].rssi_threshold;
}
nlo_list[i].bcast_nw_type.valid = true;
nlo_list[i].bcast_nw_type.bcast_nw_type =
pno->a_networks[i].bcast_nw_type;
}
ptr += nlo_list_len;
cmd->num_of_channels = pno->a_networks[0].channel_count;
tlv = (struct wmi_tlv *)ptr;
tlv->header = FIELD_PREP(WMI_TLV_TAG, WMI_TAG_ARRAY_UINT32) |
FIELD_PREP(WMI_TLV_LEN, channel_list_len);
ptr += sizeof(*tlv);
channel_list = (u32 *)ptr;
for (i = 0; i < cmd->num_of_channels; i++)
channel_list[i] = pno->a_networks[0].channels[i];
ath11k_dbg(ar->ab, ATH11K_DBG_WMI, "wmi tlv start pno config vdev_id %d\n",
vdev_id);
return skb;
}
static struct sk_buff *ath11k_wmi_op_gen_config_pno_stop(struct ath11k *ar,
u32 vdev_id)
{
struct wmi_wow_nlo_config_cmd *cmd;
struct sk_buff *skb;
size_t len;
len = sizeof(*cmd);
skb = ath11k_wmi_alloc_skb(ar->wmi->wmi_ab, len);
if (!skb)
return ERR_PTR(-ENOMEM);
cmd = (struct wmi_wow_nlo_config_cmd *)skb->data;
cmd->tlv_header = FIELD_PREP(WMI_TLV_TAG, WMI_TAG_NLO_CONFIG_CMD) |
FIELD_PREP(WMI_TLV_LEN, len - TLV_HDR_SIZE);
cmd->vdev_id = vdev_id;
cmd->flags = WMI_NLO_CONFIG_STOP;
ath11k_dbg(ar->ab, ATH11K_DBG_WMI,
"wmi tlv stop pno config vdev_id %d\n", vdev_id);
return skb;
}
int ath11k_wmi_wow_config_pno(struct ath11k *ar, u32 vdev_id,
struct wmi_pno_scan_req *pno_scan)
{
struct sk_buff *skb;
if (pno_scan->enable)
skb = ath11k_wmi_op_gen_config_pno_start(ar, vdev_id, pno_scan);
else
skb = ath11k_wmi_op_gen_config_pno_stop(ar, vdev_id);
if (IS_ERR_OR_NULL(skb))
return -ENOMEM;
return ath11k_wmi_cmd_send(ar->wmi, skb, WMI_NETWORK_LIST_OFFLOAD_CONFIG_CMDID);
}
......@@ -5616,6 +5616,173 @@ struct wmi_wow_del_pattern_cmd {
u32 pattern_type;
} __packed;
#define WMI_PNO_MAX_SCHED_SCAN_PLANS 2
#define WMI_PNO_MAX_SCHED_SCAN_PLAN_INT 7200
#define WMI_PNO_MAX_SCHED_SCAN_PLAN_ITRNS 100
#define WMI_PNO_MAX_NETW_CHANNELS 26
#define WMI_PNO_MAX_NETW_CHANNELS_EX 60
#define WMI_PNO_MAX_SUPP_NETWORKS WLAN_SCAN_PARAMS_MAX_SSID
#define WMI_PNO_MAX_IE_LENGTH WLAN_SCAN_PARAMS_MAX_IE_LEN
/* size based of dot11 declaration without extra IEs as we will not carry those for PNO */
#define WMI_PNO_MAX_PB_REQ_SIZE 450
#define WMI_PNO_24G_DEFAULT_CH 1
#define WMI_PNO_5G_DEFAULT_CH 36
#define WMI_ACTIVE_MAX_CHANNEL_TIME 40
#define WMI_PASSIVE_MAX_CHANNEL_TIME 110
/* SSID broadcast type */
enum wmi_ssid_bcast_type {
BCAST_UNKNOWN = 0,
BCAST_NORMAL = 1,
BCAST_HIDDEN = 2,
};
#define WMI_NLO_MAX_SSIDS 16
#define WMI_NLO_MAX_CHAN 48
#define WMI_NLO_CONFIG_STOP BIT(0)
#define WMI_NLO_CONFIG_START BIT(1)
#define WMI_NLO_CONFIG_RESET BIT(2)
#define WMI_NLO_CONFIG_SLOW_SCAN BIT(4)
#define WMI_NLO_CONFIG_FAST_SCAN BIT(5)
#define WMI_NLO_CONFIG_SSID_HIDE_EN BIT(6)
/* This bit is used to indicate if EPNO or supplicant PNO is enabled.
* Only one of them can be enabled at a given time
*/
#define WMI_NLO_CONFIG_ENLO BIT(7)
#define WMI_NLO_CONFIG_SCAN_PASSIVE BIT(8)
#define WMI_NLO_CONFIG_ENLO_RESET BIT(9)
#define WMI_NLO_CONFIG_SPOOFED_MAC_IN_PROBE_REQ BIT(10)
#define WMI_NLO_CONFIG_RANDOM_SEQ_NO_IN_PROBE_REQ BIT(11)
#define WMI_NLO_CONFIG_ENABLE_IE_WHITELIST_IN_PROBE_REQ BIT(12)
#define WMI_NLO_CONFIG_ENABLE_CNLO_RSSI_CONFIG BIT(13)
struct wmi_nlo_ssid_param {
u32 valid;
struct wmi_ssid ssid;
} __packed;
struct wmi_nlo_enc_param {
u32 valid;
u32 enc_type;
} __packed;
struct wmi_nlo_auth_param {
u32 valid;
u32 auth_type;
} __packed;
struct wmi_nlo_bcast_nw_param {
u32 valid;
u32 bcast_nw_type;
} __packed;
struct wmi_nlo_rssi_param {
u32 valid;
s32 rssi;
} __packed;
struct nlo_configured_parameters {
/* TLV tag and len;*/
u32 tlv_header;
struct wmi_nlo_ssid_param ssid;
struct wmi_nlo_enc_param enc_type;
struct wmi_nlo_auth_param auth_type;
struct wmi_nlo_rssi_param rssi_cond;
/* indicates if the SSID is hidden or not */
struct wmi_nlo_bcast_nw_param bcast_nw_type;
} __packed;
struct wmi_network_type {
struct wmi_ssid ssid;
u32 authentication;
u32 encryption;
u32 bcast_nw_type;
u8 channel_count;
u16 channels[WMI_PNO_MAX_NETW_CHANNELS_EX];
s32 rssi_threshold;
};
struct wmi_pno_scan_req {
u8 enable;
u8 vdev_id;
u8 uc_networks_count;
struct wmi_network_type a_networks[WMI_PNO_MAX_SUPP_NETWORKS];
u32 fast_scan_period;
u32 slow_scan_period;
u8 fast_scan_max_cycles;
bool do_passive_scan;
u32 delay_start_time;
u32 active_min_time;
u32 active_max_time;
u32 passive_min_time;
u32 passive_max_time;
/* mac address randomization attributes */
u32 enable_pno_scan_randomization;
u8 mac_addr[ETH_ALEN];
u8 mac_addr_mask[ETH_ALEN];
};
struct wmi_wow_nlo_config_cmd {
u32 tlv_header;
u32 flags;
u32 vdev_id;
u32 fast_scan_max_cycles;
u32 active_dwell_time;
u32 passive_dwell_time;
u32 probe_bundle_size;
/* ART = IRT */
u32 rest_time;
/* Max value that can be reached after SBM */
u32 max_rest_time;
/* SBM */
u32 scan_backoff_multiplier;
/* SCBM */
u32 fast_scan_period;
/* specific to windows */
u32 slow_scan_period;
u32 no_of_ssids;
u32 num_of_channels;
/* NLO scan start delay time in milliseconds */
u32 delay_start_time;
/* MAC Address to use in Probe Req as SA */
struct wmi_mac_addr mac_addr;
/* Mask on which MAC has to be randomized */
struct wmi_mac_addr mac_mask;
/* IE bitmap to use in Probe Req */
u32 ie_bitmap[8];
/* Number of vendor OUIs. In the TLV vendor_oui[] */
u32 num_vendor_oui;
/* Number of connected NLO band preferences */
u32 num_cnlo_band_pref;
/* The TLVs will follow.
* nlo_configured_parameters nlo_list[];
* u32 channel_list[num_of_channels];
*/
} __packed;
int ath11k_wmi_cmd_send(struct ath11k_pdev_wmi *wmi, struct sk_buff *skb,
u32 cmd_id);
struct sk_buff *ath11k_wmi_alloc_skb(struct ath11k_wmi_base *wmi_sc, u32 len);
......@@ -5777,6 +5944,8 @@ int ath11k_wmi_scan_prob_req_oui(struct ath11k *ar,
const u8 mac_addr[ETH_ALEN]);
int ath11k_wmi_fw_dbglog_cfg(struct ath11k *ar, u32 *module_id_bitmap,
struct ath11k_fw_dbglog *dbglog);
int ath11k_wmi_wow_config_pno(struct ath11k *ar, u32 vdev_id,
struct wmi_pno_scan_req *pno_scan);
int ath11k_wmi_wow_del_pattern(struct ath11k *ar, u32 vdev_id, u32 pattern_id);
int ath11k_wmi_wow_add_pattern(struct ath11k *ar, u32 vdev_id, u32 pattern_id,
const u8 *pattern, const u8 *mask,
......
......@@ -228,6 +228,101 @@ static void ath11k_wow_convert_8023_to_80211(struct cfg80211_pkt_pattern *new,
}
}
static int ath11k_wmi_pno_check_and_convert(struct ath11k *ar, u32 vdev_id,
struct cfg80211_sched_scan_request *nd_config,
struct wmi_pno_scan_req *pno)
{
int i, j;
u8 ssid_len;
pno->enable = 1;
pno->vdev_id = vdev_id;
pno->uc_networks_count = nd_config->n_match_sets;
if (!pno->uc_networks_count ||
pno->uc_networks_count > WMI_PNO_MAX_SUPP_NETWORKS)
return -EINVAL;
if (nd_config->n_channels > WMI_PNO_MAX_NETW_CHANNELS_EX)
return -EINVAL;
/* Filling per profile params */
for (i = 0; i < pno->uc_networks_count; i++) {
ssid_len = nd_config->match_sets[i].ssid.ssid_len;
if (ssid_len == 0 || ssid_len > 32)
return -EINVAL;
pno->a_networks[i].ssid.ssid_len = ssid_len;
memcpy(pno->a_networks[i].ssid.ssid,
nd_config->match_sets[i].ssid.ssid,
nd_config->match_sets[i].ssid.ssid_len);
pno->a_networks[i].authentication = 0;
pno->a_networks[i].encryption = 0;
pno->a_networks[i].bcast_nw_type = 0;
/* Copying list of valid channel into request */
pno->a_networks[i].channel_count = nd_config->n_channels;
pno->a_networks[i].rssi_threshold = nd_config->match_sets[i].rssi_thold;
for (j = 0; j < nd_config->n_channels; j++) {
pno->a_networks[i].channels[j] =
nd_config->channels[j]->center_freq;
}
}
/* set scan to passive if no SSIDs are specified in the request */
if (nd_config->n_ssids == 0)
pno->do_passive_scan = true;
else
pno->do_passive_scan = false;
for (i = 0; i < nd_config->n_ssids; i++) {
j = 0;
while (j < pno->uc_networks_count) {
if (pno->a_networks[j].ssid.ssid_len ==
nd_config->ssids[i].ssid_len &&
(memcmp(pno->a_networks[j].ssid.ssid,
nd_config->ssids[i].ssid,
pno->a_networks[j].ssid.ssid_len) == 0)) {
pno->a_networks[j].bcast_nw_type = BCAST_HIDDEN;
break;
}
j++;
}
}
if (nd_config->n_scan_plans == 2) {
pno->fast_scan_period = nd_config->scan_plans[0].interval * MSEC_PER_SEC;
pno->fast_scan_max_cycles = nd_config->scan_plans[0].iterations;
pno->slow_scan_period =
nd_config->scan_plans[1].interval * MSEC_PER_SEC;
} else if (nd_config->n_scan_plans == 1) {
pno->fast_scan_period = nd_config->scan_plans[0].interval * MSEC_PER_SEC;
pno->fast_scan_max_cycles = 1;
pno->slow_scan_period = nd_config->scan_plans[0].interval * MSEC_PER_SEC;
} else {
ath11k_warn(ar->ab, "Invalid number of scan plans %d !!",
nd_config->n_scan_plans);
}
if (nd_config->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
/* enable mac randomization */
pno->enable_pno_scan_randomization = 1;
memcpy(pno->mac_addr, nd_config->mac_addr, ETH_ALEN);
memcpy(pno->mac_addr_mask, nd_config->mac_addr_mask, ETH_ALEN);
}
pno->delay_start_time = nd_config->delay;
/* Current FW does not support min-max range for dwell time */
pno->active_max_time = WMI_ACTIVE_MAX_CHANNEL_TIME;
pno->passive_max_time = WMI_PASSIVE_MAX_CHANNEL_TIME;
return 0;
}
static int ath11k_vif_wow_set_wakeups(struct ath11k_vif *arvif,
struct cfg80211_wowlan *wowlan)
{
......@@ -261,6 +356,26 @@ static int ath11k_vif_wow_set_wakeups(struct ath11k_vif *arvif,
if (wowlan->magic_pkt)
__set_bit(WOW_MAGIC_PKT_RECVD_EVENT, &wow_mask);
if (wowlan->nd_config) {
struct wmi_pno_scan_req *pno;
int ret;
pno = kzalloc(sizeof(*pno), GFP_KERNEL);
if (!pno)
return -ENOMEM;
ar->nlo_enabled = true;
ret = ath11k_wmi_pno_check_and_convert(ar, arvif->vdev_id,
wowlan->nd_config, pno);
if (!ret) {
ath11k_wmi_wow_config_pno(ar, arvif->vdev_id, pno);
__set_bit(WOW_NLO_DETECTED_EVENT, &wow_mask);
}
kfree(pno);
}
break;
default:
break;
......@@ -354,6 +469,51 @@ static int ath11k_wow_set_wakeups(struct ath11k *ar,
return 0;
}
static int ath11k_vif_wow_clean_nlo(struct ath11k_vif *arvif)
{
int ret = 0;
struct ath11k *ar = arvif->ar;
switch (arvif->vdev_type) {
case WMI_VDEV_TYPE_STA:
if (ar->nlo_enabled) {
struct wmi_pno_scan_req *pno;
pno = kzalloc(sizeof(*pno), GFP_KERNEL);
if (!pno)
return -ENOMEM;
pno->enable = 0;
ar->nlo_enabled = false;
ret = ath11k_wmi_wow_config_pno(ar, arvif->vdev_id, pno);
kfree(pno);
}
break;
default:
break;
}
return ret;
}
static int ath11k_wow_nlo_cleanup(struct ath11k *ar)
{
struct ath11k_vif *arvif;
int ret;
lockdep_assert_held(&ar->conf_mutex);
list_for_each_entry(arvif, &ar->arvifs, list) {
ret = ath11k_vif_wow_clean_nlo(arvif);
if (ret) {
ath11k_warn(ar->ab, "failed to clean nlo settings on vdev %i: %d\n",
arvif->vdev_id, ret);
return ret;
}
}
return 0;
}
int ath11k_wow_op_suspend(struct ieee80211_hw *hw,
struct cfg80211_wowlan *wowlan)
{
......@@ -439,8 +599,16 @@ int ath11k_wow_op_resume(struct ieee80211_hw *hw)
ath11k_hif_irq_enable(ar->ab);
ret = ath11k_wow_wakeup(ar->ab);
if (ret)
if (ret) {
ath11k_warn(ar->ab, "failed to wakeup from wow: %d\n", ret);
goto exit;
}
ret = ath11k_wow_nlo_cleanup(ar);
if (ret) {
ath11k_warn(ar->ab, "failed to cleanup nlo: %d\n", ret);
goto exit;
}
exit:
if (ret) {
......@@ -477,6 +645,11 @@ int ath11k_wow_init(struct ath11k *ar)
ar->wow.wowlan_support.max_pkt_offset -= WOW_MAX_REDUCE;
}
if (test_bit(WMI_TLV_SERVICE_NLO, ar->wmi->wmi_ab->svc_map)) {
ar->wow.wowlan_support.flags |= WIPHY_WOWLAN_NET_DETECT;
ar->wow.wowlan_support.max_nd_match_sets = WMI_PNO_MAX_SUPP_NETWORKS;
}
ar->wow.max_num_patterns = ATH11K_WOW_PATTERNS;
ar->wow.wowlan_support.n_patterns = ar->wow.max_num_patterns;
ar->hw->wiphy->wowlan = &ar->wow.wowlan_support;
......
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