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wifi: iwlwifi: mvm: implement ROC version 3

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Define the new API for ROC command and notification.
Use ROC version 3 command and notificaiton for hotspot.

Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20231011130030.0cff02aecc16.If0a89ddc6b2339988ff51efa6709d4a883569969@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Shaul Triebitz 2023-10-11 13:07:22 +03:00 committed by Johannes Berg
parent c8e01fe070
commit 67ac248e4d
6 changed files with 229 additions and 32 deletions
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10
drivers/net/wireless/intel/iwlwifi/fw/api/mac-cfg.h
View File

@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
/*
* Copyright (C) 2012-2014, 2018-2019, 2021-2022 Intel Corporation
* Copyright (C) 2012-2014, 2018-2019, 2021-2023 Intel Corporation
* Copyright (C) 2013-2015 Intel Mobile Communications GmbH
* Copyright (C) 2016-2017 Intel Deutschland GmbH
*/
@ -57,6 +57,14 @@ enum iwl_mac_conf_subcmd_ids {
* @STA_DISABLE_TX_CMD: &struct iwl_mvm_sta_disable_tx_cmd
*/
STA_DISABLE_TX_CMD = 0xD,
/**
* @ROC_CMD: &struct iwl_roc_req
*/
ROC_CMD = 0xE,
/**
* @ROC_NOTIF: &struct iwl_roc_notif
*/
ROC_NOTIF = 0xF8,
/**
* @SESSION_PROTECTION_NOTIF: &struct iwl_mvm_session_prot_notif
*/

57
drivers/net/wireless/intel/iwlwifi/fw/api/time-event.h
View File

@ -335,6 +335,63 @@ struct iwl_hs20_roc_res {
__le32 status;
} __packed; /* HOT_SPOT_RSP_API_S_VER_1 */
/*
* Activity types for the ROC command
* @ROC_ACTIVITY_HOTSPOT: ROC for hs20 activity
* @ROC_ACTIVITY_P2P_DISC: ROC for p2p discoverability activity
* @ROC_ACTIVITY_P2P_TXRX: ROC for p2p action frames activity
*/
enum iwl_roc_activity {
ROC_ACTIVITY_HOTSPOT,
ROC_ACTIVITY_P2P_DISC,
ROC_ACTIVITY_P2P_TXRX,
ROC_NUM_ACTIVITIES
}; /* ROC_ACTIVITY_API_E_VER_1 */
/*
* ROC command
*
* Command requests the firmware to remain on a channel for a certain duration.
*
* ( MAC_CONF_GROUP 0x3, ROC_CMD 0xE )
*
* @action: action to perform, see &enum iwl_ctxt_action
* @activity: type of activity, see &enum iwl_roc_activity
* @sta_id: station id, resumed during "Remain On Channel" activity.
* @channel_info: &struct iwl_fw_channel_info
* @node_addr: node MAC address for Rx filtering
* @reserved: align to a dword
* @max_delay: max delay the ROC can start in TU
* @duration: remain on channel duration in TU
*/
struct iwl_roc_req {
__le32 action;
__le32 activity;
__le32 sta_id;
struct iwl_fw_channel_info channel_info;
u8 node_addr[ETH_ALEN];
__le16 reserved;
__le32 max_delay;
__le32 duration;
} __packed; /* ROC_CMD_API_S_VER_3 */
/*
* ROC notification
*
* Notification when ROC startes and when ROC ended.
*
* ( MAC_CONF_GROUP 0x3, ROC_NOTIF 0xf8 )
*
* @status: true if ROC succeeded to start
* @start_end: true if ROC started, false if ROC ended
* @activity: notification to which activity - &enum iwl_roc_activity
*/
struct iwl_roc_notif {
__le32 success;
__le32 started;
__le32 activity;
} __packed; /* ROC_NOTIF_API_S_VER_1 */
/**
* enum iwl_mvm_session_prot_conf_id - session protection's configurations
* @SESSION_PROTECT_CONF_ASSOC: Start a session protection for association.

131
drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
View File

@ -4406,6 +4406,39 @@ static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
#define AUX_ROC_MAX_DELAY MSEC_TO_TU(600)
#define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20)
#define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10)
static void iwl_mvm_roc_duration_and_delay(struct ieee80211_vif *vif,
u32 duration_ms,
u32 *duration_tu,
u32 *delay)
{
u32 dtim_interval = vif->bss_conf.dtim_period *
vif->bss_conf.beacon_int;
*delay = AUX_ROC_MIN_DELAY;
*duration_tu = MSEC_TO_TU(duration_ms);
/*
* If we are associated we want the delay time to be at least one
* dtim interval so that the FW can wait until after the DTIM and
* then start the time event, this will potentially allow us to
* remain off-channel for the max duration.
* Since we want to use almost a whole dtim interval we would also
* like the delay to be for 2-3 dtim intervals, in case there are
* other time events with higher priority.
*/
if (vif->cfg.assoc) {
*delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY);
/* We cannot remain off-channel longer than the DTIM interval */
if (dtim_interval <= *duration_tu) {
*duration_tu = dtim_interval - AUX_ROC_SAFETY_BUFFER;
if (*duration_tu <= AUX_ROC_MIN_DURATION)
*duration_tu = dtim_interval -
AUX_ROC_MIN_SAFETY_BUFFER;
}
}
}
static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
struct ieee80211_channel *channel,
struct ieee80211_vif *vif,
@ -4416,8 +4449,6 @@ static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
static const u16 time_event_response[] = { HOT_SPOT_CMD };
struct iwl_notification_wait wait_time_event;
u32 dtim_interval = vif->bss_conf.dtim_period *
vif->bss_conf.beacon_int;
u32 req_dur, delay;
struct iwl_hs20_roc_req aux_roc_req = {
.action = cpu_to_le32(FW_CTXT_ACTION_ADD),
@ -4438,29 +4469,7 @@ static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
/* Set the time and duration */
tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm));
delay = AUX_ROC_MIN_DELAY;
req_dur = MSEC_TO_TU(duration);
/*
* If we are associated we want the delay time to be at least one
* dtim interval so that the FW can wait until after the DTIM and
* then start the time event, this will potentially allow us to
* remain off-channel for the max duration.
* Since we want to use almost a whole dtim interval we would also
* like the delay to be for 2-3 dtim intervals, in case there are
* other time events with higher priority.
*/
if (vif->cfg.assoc) {
delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY);
/* We cannot remain off-channel longer than the DTIM interval */
if (dtim_interval <= req_dur) {
req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER;
if (req_dur <= AUX_ROC_MIN_DURATION)
req_dur = dtim_interval -
AUX_ROC_MIN_SAFETY_BUFFER;
}
}
iwl_mvm_roc_duration_and_delay(vif, duration, &req_dur, &delay);
tail->duration = cpu_to_le32(req_dur);
tail->apply_time_max_delay = cpu_to_le32(delay);
@ -4468,8 +4477,8 @@ static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
"ROC: Requesting to remain on channel %u for %ums\n",
channel->hw_value, req_dur);
IWL_DEBUG_TE(mvm,
"\t(requested = %ums, max_delay = %ums, dtim_interval = %ums)\n",
duration, delay, dtim_interval);
"\t(requested = %ums, max_delay = %ums)\n",
duration, delay);
/* Set the node address */
memcpy(tail->node_addr, vif->addr, ETH_ALEN);
@ -4527,6 +4536,48 @@ static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
return res;
}
static int iwl_mvm_roc_add_cmd(struct iwl_mvm *mvm,
struct ieee80211_channel *channel,
struct ieee80211_vif *vif,
int duration, u32 activity)
{
int res;
u32 duration_tu, delay;
struct iwl_roc_req roc_req = {
.action = cpu_to_le32(FW_CTXT_ACTION_ADD),
.activity = cpu_to_le32(activity),
.sta_id = cpu_to_le32(mvm->aux_sta.sta_id),
};
lockdep_assert_held(&mvm->mutex);
/* Set the channel info data */
iwl_mvm_set_chan_info(mvm, &roc_req.channel_info,
channel->hw_value,
iwl_mvm_phy_band_from_nl80211(channel->band),
IWL_PHY_CHANNEL_MODE20, 0);
iwl_mvm_roc_duration_and_delay(vif, duration, &duration_tu,
&delay);
roc_req.duration = cpu_to_le32(duration_tu);
roc_req.max_delay = cpu_to_le32(delay);
IWL_DEBUG_TE(mvm,
"\t(requested = %ums, max_delay = %ums)\n",
duration, delay);
IWL_DEBUG_TE(mvm,
"Requesting to remain on channel %u for %utu\n",
channel->hw_value, duration_tu);
/* Set the node address */
memcpy(roc_req.node_addr, vif->addr, ETH_ALEN);
res = iwl_mvm_send_cmd_pdu(mvm, WIDE_ID(MAC_CONF_GROUP, ROC_CMD),
0, sizeof(roc_req), &roc_req);
return res;
}
static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id)
{
int ret = 0;
@ -4577,6 +4628,29 @@ static int iwl_mvm_roc(struct ieee80211_hw *hw,
return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops);
}
static int iwl_mvm_roc_station(struct iwl_mvm *mvm,
struct ieee80211_channel *channel,
struct ieee80211_vif *vif,
int duration)
{
int ret;
u32 cmd_id = WIDE_ID(MAC_CONF_GROUP, ROC_CMD);
u8 fw_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id,
IWL_FW_CMD_VER_UNKNOWN);
if (fw_ver == IWL_FW_CMD_VER_UNKNOWN) {
ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, vif, duration);
} else if (fw_ver == 3) {
ret = iwl_mvm_roc_add_cmd(mvm, channel, vif, duration,
ROC_ACTIVITY_HOTSPOT);
} else {
ret = -EOPNOTSUPP;
IWL_ERR(mvm, "ROC command version %d mismatch!\n", fw_ver);
}
return ret;
}
/* Execute the common part for MLD and non-MLD modes */
int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_channel *channel, int duration,
@ -4608,8 +4682,7 @@ int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
/* Use aux roc framework (HS20) */
ret = ops->add_aux_sta_for_hs20(mvm, lmac_id);
if (!ret)
ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
vif, duration);
ret = iwl_mvm_roc_station(mvm, channel, vif, duration);
goto out_unlock;
case NL80211_IFTYPE_P2P_DEVICE:
/* handle below */

5
drivers/net/wireless/intel/iwlwifi/mvm/ops.c
View File

@ -426,6 +426,9 @@ static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = {
WNM_80211V_TIMING_MEASUREMENT_CONFIRM_NOTIFICATION,
iwl_mvm_time_sync_msmt_confirm_event, RX_HANDLER_SYNC,
struct iwl_time_msmt_cfm_notify),
RX_HANDLER_GRP(MAC_CONF_GROUP, ROC_NOTIF,
iwl_mvm_rx_roc_notif, RX_HANDLER_SYNC,
struct iwl_roc_notif),
};
#undef RX_HANDLER
#undef RX_HANDLER_GRP
@ -549,6 +552,8 @@ static const struct iwl_hcmd_names iwl_mvm_mac_conf_names[] = {
HCMD_NAME(AUX_STA_CMD),
HCMD_NAME(STA_REMOVE_CMD),
HCMD_NAME(STA_DISABLE_TX_CMD),
HCMD_NAME(ROC_CMD),
HCMD_NAME(ROC_NOTIF),
HCMD_NAME(SESSION_PROTECTION_NOTIF),
HCMD_NAME(CHANNEL_SWITCH_START_NOTIF),
};

50
drivers/net/wireless/intel/iwlwifi/mvm/time-event.c
View File

@ -398,6 +398,22 @@ static void iwl_mvm_te_handle_notif(struct iwl_mvm *mvm,
}
}
void iwl_mvm_rx_roc_notif(struct iwl_mvm *mvm,
struct iwl_rx_cmd_buffer *rxb)
{
struct iwl_rx_packet *pkt = rxb_addr(rxb);
struct iwl_roc_notif *notif = (void *)pkt->data;
if (le32_to_cpu(notif->success) && le32_to_cpu(notif->started) &&
le32_to_cpu(notif->activity) == ROC_ACTIVITY_HOTSPOT) {
set_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status);
ieee80211_ready_on_channel(mvm->hw);
} else {
iwl_mvm_roc_finished(mvm);
ieee80211_remain_on_channel_expired(mvm->hw);
}
}
/*
* Handle A Aux ROC time event
*/
@ -1050,6 +1066,37 @@ void iwl_mvm_cleanup_roc_te(struct iwl_mvm *mvm)
__iwl_mvm_remove_time_event(mvm, te_data, &uid);
}
static void iwl_mvm_roc_rm_cmd(struct iwl_mvm *mvm, u32 activity)
{
int ret;
struct iwl_roc_req roc_cmd = {
.action = cpu_to_le32(FW_CTXT_ACTION_REMOVE),
.activity = cpu_to_le32(activity),
};
lockdep_assert_held(&mvm->mutex);
ret = iwl_mvm_send_cmd_pdu(mvm,
WIDE_ID(MAC_CONF_GROUP, ROC_CMD),
0, sizeof(roc_cmd), &roc_cmd);
WARN_ON(ret);
}
static void iwl_mvm_roc_station_remove(struct iwl_mvm *mvm,
struct iwl_mvm_vif *mvmvif)
{
u32 cmd_id = WIDE_ID(MAC_CONF_GROUP, ROC_CMD);
u8 fw_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id,
IWL_FW_CMD_VER_UNKNOWN);
if (fw_ver == IWL_FW_CMD_VER_UNKNOWN)
iwl_mvm_remove_aux_roc_te(mvm, mvmvif,
&mvmvif->hs_time_event_data);
else if (fw_ver == 3)
iwl_mvm_roc_rm_cmd(mvm, ROC_ACTIVITY_HOTSPOT);
else
IWL_ERR(mvm, "ROC command version %d mismatch!\n", fw_ver);
}
void iwl_mvm_stop_roc(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
{
struct iwl_mvm_vif *mvmvif;
@ -1064,8 +1111,7 @@ void iwl_mvm_stop_roc(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
mvmvif->time_event_data.id);
iwl_mvm_p2p_roc_finished(mvm);
} else {
iwl_mvm_remove_aux_roc_te(mvm, mvmvif,
&mvmvif->hs_time_event_data);
iwl_mvm_roc_station_remove(mvm, mvmvif);
iwl_mvm_roc_finished(mvm);
}

8
drivers/net/wireless/intel/iwlwifi/mvm/time-event.h
View File

@ -100,6 +100,14 @@ void iwl_mvm_stop_session_protection(struct iwl_mvm *mvm,
void iwl_mvm_rx_time_event_notif(struct iwl_mvm *mvm,
struct iwl_rx_cmd_buffer *rxb);
/**
* iwl_mvm_rx_roc_notif - handles %DISCOVERY_ROC_NTF.
* @mvm: the mvm component
* @rxb: RX buffer
*/
void iwl_mvm_rx_roc_notif(struct iwl_mvm *mvm,
struct iwl_rx_cmd_buffer *rxb);
/**
* iwl_mvm_start_p2p_roc - start remain on channel for p2p device functionality
* @mvm: the mvm component